CLEANING DEVICE

Abstract

A cleaning device is provided, which includes a body mechanism, a chassis body, a cleaning assembly, a water tank, and a negative pressure source. A lower end of the body mechanism is rotatably connected to a middle of the chassis body. The cleaning assembly is arranged below the chassis body. The water tank includes a sewage tank and a clean water tank capable of supplying water for cleaning. At least one of the clean water tank and the sewage tank is arranged on the chassis body. The negative pressure source is capable of sucking dirt generated by the cleaning assembly into the sewage tank during cleaning.

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of cleaning devices, and in particular to a cleaning device.

BACKGROUND

Typically, a cleaning device includes a chassis body for cleaning ground and a body mechanism rotatably connected to the chassis body. In related art, the cleaning device's clean water tank, sewage tank, battery, and negative pressure source connected with the sewage tank, are all arranged on the body mechanism, making the body mechanism relatively heavy. This not only increases the rotational resistance between the body mechanism and the chassis body but also increases the fatigue of users when holding the body mechanism to clean the ground, affecting the user experience.

SUMMARY

The present disclosure provides a cleaning device. According to the cleaning device, a lower end of a body mechanism of the cleaning device is rotatably connected to a middle of a chassis body, and either one or both of the clean water tank and the sewage tank are arranged on the chassis body, which not only facilitates the rotation of the body mechanism but also reduces the weight of the body mechanism, thereby improving the user experience.

The present disclosure provides a cleaning device, including:

• • a body mechanism;
  • a chassis body, a lower end of the body mechanism being rotatably connected to a middle of the chassis body;
  • a cleaning assembly arranged below the chassis body;
  • a water tank, the water tank including a sewage tank and a clean water tank capable of supplying water for cleaning, and at least one of the clean water tank and the sewage tank being arranged on the chassis body; and
  • a negative pressure source, capable of sucking dirt generated by the cleaning assembly into the sewage tank during cleaning.

The present disclosure provides the cleaning device, which includes a body mechanism, a chassis body, a cleaning assembly, and a water tank. The water tank includes a clean water tank and a sewage tank. The lower end of the body mechanism is rotatably connected to the middle of the chassis body, and either one or both of the clean water tank and the sewage tank are arranged on the chassis body. This not only reduces the rotational resistance of the body mechanism, facilitating rotation of the body mechanism, but also lightens the weight of the body mechanism, significantly improving the user experience.

It should be understood that the general description above and the detailed description that follows are exemplary and explanatory in nature and should not be construed as limiting the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description are some embodiments of the present disclosure, and those of ordinary skill in the art may obtain other drawings based on these accompanying drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of a cleaning device.

FIG. 2 is a schematic structural diagram of a chassis base of a cleaning device.

FIG. 3 is a schematic structural diagram of a bottom of a chassis body.

FIG. 4 is a schematic diagram showing a location of a center of gravity of a main body assembly.

FIG. 5 is a schematic diagram showing an arrangement of each functional assembly on a main body assembly.

FIG. 6 is a schematic diagram showing that a main body assembly is lying down.

FIG. 7 is a schematic diagram of a chassis body and a hinge base.

FIG. 8 is a schematic structural diagram of a water guiding passage.

FIG. 9 is a schematic diagram of an electronic assembly on a chassis base.

FIG. 10 is a partial enlarged diagram of portion A in FIG. 9, showing a water leakage flow path.

FIG. 11 is a schematic structural diagram of a chassis base.

FIG. 12 is a partial enlarged diagram of portion B in FIG. 11, showing a water leakage hole.

FIG. 13 is a schematic structural diagram of a chassis body without a chassis cover.

FIG. 14 is a schematic structural diagram of a chassis cover.

FIG. 15 is a schematic structural diagram of a hinge base.

FIG. 16 is a cross-sectional view of a liquid passage.

FIG. 17 is a schematic structural diagram of a chassis base without being installed with an electronic assembly and a cleaning waterways.

FIG. 18 is a partial cross-sectional view of the chassis base in FIG. 17, along plane A and plane B, showing a compartment structure of the chassis base.

FIG. 19 is a schematic diagram of a cleaning waterways.

FIG. 20 is a schematic diagram showing that a water tank is installed on a chassis body.

FIG. 21 is a schematic diagram of an arrangement of a water tank installation according to a first embodiment in which the water tank is docked with a chassis body.

FIG. 22 is a schematic structural diagram of the water tank according to the first embodiment in which the water tank is docked with the chassis body.

FIG. 23 is a schematic diagram of an arrangement of a water tank installation according to a second embodiment in which the water tank is docked with a chassis body.

FIG. 24 is a schematic structural diagram of the water tank according to the second embodiment in which the water tank is docked with the chassis body.

FIG. 25 is a schematic structural diagram of an interface passage of a water tank.

FIG. 26 shows a connection relationship between a control apparatus of a magnetic attraction assembly of the water tank with other assemblies.

FIG. 27 is a schematic diagram showing a connection between the control apparatus and an input apparatus in which the input apparatus is arranged on a mobile terminal.

FIG. 28 is a schematic diagram showing installing of a water tank in position in which the first guiding side walls face each other.

FIG. 29 is a schematic diagram of showing installing of a water tank in position in which the first guiding side walls face away from each other.

FIG. 30 is a schematic structural diagram of a movable handle of a water tank.

FIG. 31 is a schematic structural diagram of the water tank in a water tank installation position without pulling a movable handle.

FIG. 32 is a schematic diagram showing pulling the movable handle to push the water tank out from the water tank installation position.

FIG. 33 is a schematic structural diagram of a tank body of a water tank.

FIG. 34 is a schematic structural diagram of a housing of a water tank.

FIG. 35 is a schematic structural diagram of a handle slot of a water tank.

FIG. 36 is a schematic diagram showing a finger inserting into the handle slot.

FIG. 37 is a schematic structural diagram of an avoidance space and a water inlet of a water tank.

FIG. 38 is a schematic diagram showing adding water to the water tank through the water inlet.

FIG. 39 is a schematic structural diagram of an anti-vibration cavity inside a water tank.

FIG. 40 is a schematic structural diagram of a flow-through hole of the anti-vibration cavity.

FIG. 41 is a schematic structural diagram showing docking an anti-vibration cavity of a water tank and an optical guiding structure to an optoelectronic detector on a chassis body, the arrow indicating a direction of a light path.

FIG. 42 is a schematic diagram of a plurality of optoelectronic detectors arranged in the water tank installation position along a vertical direction.

FIG. 43 is a schematic diagram showing connection between optoelectronic detectors and a power supply.

EXPLANATION OF REFERENCE NUMERAL

• • chassis body 10, roller set 110, first roller body 110a, second roller body 110b, hinge base 120, installation cavity 120a, rotating shaft hole 120b, liquid passage 120c, water blocking flange 121, water guiding groove 122, water guiding port 123, water guiding passage 130, water leakage cavity 130a, water leakage hole 130b, connection column 130c, electronic assembly 140, water separation portion 141, first mounting cavity 150, upper installation space 150a, lower installation space 150b, water passage structure 151b, second mounting cavity 151, water leakage flow path 152, water tank installation position 160, docking portion 161, second magnetic attraction assembly 162, second magnetic attraction component 162a, thumb support portion 170;
  • chassis base 10a, chassis cover 10b, first water blocking edge 101b, second water blocking edge 102b, edge wrapping structure 103, first wrapping edge 103a, second wrapping edge 103b;
  • body mechanism 20, main body assembly 200, hinge structure 210, first axis 210a, second axis 210b, grip portion 220, battery 230, middle frame 240, functional assembly 250;
  • cleaning assembly 30;
  • water tank 40, sewage tank 410, clean water tank 420, first inclined surface 401, first left inclined surface 401a, first right inclined surface 401b, second inclined surface 402, third inclined surface 403, fourth inclined surface 404, flat surface 405, roller installation space 406, interface passage 430, installation surface 440, first magnetic attraction assembly 441, first magnetic attraction component 441a, first guiding side wall 407, first step 407a, guiding groove 407b, second guiding side wall 408, second step 408a, guiding rib 408b, movable handle 450, handle portion 450a, hinge portion 450b, abutment portion 450c, handle slot 460, contoured groove 461, cushion pad 462, avoidance space 470, water inlet 480, communication pipe 481, waterproof breathable membrane 482;
  • tank body 41, housing 42, convex rib structure 43a, snap-fit fastener 44a, guiding groove structure 43b, snap-fit position 44b, threaded connection column 45a, threaded connection hole 45b, first housing 46, second housing 47;
  • negative pressure source 50;
  • sewage suction pipe 60, sewage suction port 61;
  • water level detection apparatus 70, anti-vibration cavity 71, flow-through hole 71a, optical guiding structure 72, first surface 72a, second surface 72b, third surface 72c, triangular prism structure 72d, detection groove 73, optoelectronic detector 74, light source 74a, light receiver 74b, power supply 75, switch 76, first power supply circuit 77, second power supply circuit 78.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure rather than all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

It should also be understood that the terms used in the present disclosure are merely used for descriptive purposes. It should be understood that, the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” the orientation or positional relationship indicated are based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the present disclosure. Moreover, the terms “first”, “second”, and the like in the present disclosure are merely used for description and cannot be understood as indicating or implying their relative importance or as implicitly indicating the quantity of the technical features indicated. Thus, the feature defined by “first” or “second” may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of “multiple” and “plurality of” is two or more, unless otherwise specifically defined.

The following describes some embodiments of the present disclosure in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

As shown in FIG. 1 to FIG. 43, the present disclosure provides a cleaning device, including a body mechanism 20, a chassis body 10, a cleaning assembly 30, a water tank 40, and a negative pressure source 50. The water tank 40 includes a sewage tank 410 and a clean water tank 420 for containing a cleaning liquid. The cleaning liquid may include clean water or a mixed liquid of water and a cleaning liquid. The cleaning assembly 30 is disposed below the chassis body 10, a lower end of the body mechanism 20 is rotatably connected to a middle of the chassis body 10, and at least one of the clean water tank 420 and the sewage tank 410 is disposed on the chassis body 10. The negative pressure source 50 is capable of sucking dirt generated by the cleaning assembly 30 into the sewage tank 410 during cleaning.

According to the above technical solution, one or both of the clean water tank 420 and the sewage tank 410 is arranged on the chassis body 10. When using the cleaning device for cleaning, user may hold the upper end of the body mechanism 20 so that the body mechanism 20 is tilted to push the cleaning device, at which time the gravity of the body mechanism 20 is applied to the user's hand. The greater the gravity of the body mechanism 20, the stronger the sense of gravity felt by the user's hand. Therefore, setting one or both of the clean water tank 420 and the sewage tank 410 on the chassis body 10 can reduce the weight of the body mechanism 20, thereby reducing the force acting on the user's hand and improving the user experience. Additionally, since the gravity of the body mechanism 20 is reduced, the resistance generated when the user rotates the body mechanism 20 is also reduced, thereby facilitating the rotation of the body mechanism 20. Furthermore, the lower end of the body mechanism 20 is rotatably connected to the middle of the chassis body 10, wherein the middle of the chassis body 10 does not specifically refer to the exact center or the geometric center of the chassis body 10, but rather a non-edge area of the chassis body 10. Compared to the related art in which the rotating joint between the body mechanism 20 and the chassis body 10 is located at the rear of the chassis body 10, setting the rotating joint in the middle of the chassis body 10 allows for lighter steering of the cleaning device, thereby significantly improving the user experience. Since there is friction between the chassis body 10 and the surface to be cleaned during the rotation of the cleaning device, setting the rotating joint between the body mechanism 20 and the chassis body 10 in the middle of the chassis body 10 allows the rotating joint to be closer to the center of gravity of the chassis body 10. During steering, the distance between the center of gravity of the chassis body 10 and the rotating joint is smaller, such that a smaller rotational torque is generated, achieving the purpose of saving effort.

Illustratively, as shown in FIG. 1 to FIG. 3, the cleaning assembly 30 may include a roller brush or a track brush or the like, and the roller brush or the track brush is disposed below the chassis body 10, so as to clean garbage on the ground. The cleaning liquid in the clean water tank 420 may flow to a spray nozzle through a pipe such as a water guiding pipe, and then spray to the roller brush or the track brush or directly to the ground through the spray nozzle, providing the cleaning liquid for cleaning the roller brush, the track brush or the ground.

The negative pressure source 50 may be arranged on the body mechanism 20, or on the chassis body 10, or may be arranged independently of the body mechanism 20 and the chassis body 10, as long as it can suck the dirt generated by the cleaning device into the sewage tank 410 during cleaning. The installation position of the negative pressure source 50 is not limited in the present disclosure.

The clean water tank 420 and the sewage tank 410 may be both arranged on the chassis body 10, or one of the clean water tank 420 and the sewage tank 410 is arranged on the chassis body 10. Compared to that both the clean water tank 420 and the sewage tank 410 are arranged on the body mechanism 20, arranging one of the clean water tank 420 or the sewage tank 410 on the chassis body 10 reduces the weight of the body mechanism 20, which not only reduces the rotational resistance between the body mechanism 20 and the chassis body 10, but also reduces the overall size of the body mechanism 20. This makes it easier to steer and move the body mechanism 20, thereby effectively improving the cleaning efficiency.

In an embodiment, as shown in FIG. 1, the body mechanism 20 includes a main body assembly 200 and a hinge structure 210. The main body assembly 200 is rotatably connected to the chassis body 10 about a first axis 210a via the hinge structure 210.

It should be noted that, in the embodiments of the present disclosure, the front side refers to the side of the forward direction of the cleaning device during the cleaning process, and the rear side refers to the side of the backward direction of the cleaning device during the cleaning process. When users move the cleaning device, they hold the upper end of the body mechanism 20 to move the chassis body 10 forward, backward, leftward, or rightward, to allow the roller brush or the track brush under the chassis body 10 to clean the ground. The negative pressure source 50 can suck the dirt generated by the cleaning assembly 30 into the sewage tank 410, making the operation very convenient.

The first axis 210a may be parallel to the left-right direction of the chassis body 10, to allow the main body assembly 200 to rotate along the front-rear direction of the chassis body 10. Or, the first axis 210a is parallel to the front-rear direction of the chassis body 10, to allow the main body assembly 200 to rotate along the left-right direction of the chassis body 10. This facilitates users to hold the main body assembly 200 to drive the cleaning assembly 30 on the chassis body 10 to clean the ground.

In an embodiment, the main body assembly 200 is rotatably connected to the hinge structure 210 about a second axis 210b, and the second axis 210b is perpendicular to the first axis 210a. That is, the main body assembly 200 is capable of rotating in two directions that are perpendicular to each other.

Illustratively, as shown in FIG. 1, in a configuration that the first axis 210a is along the left-right direction of the chassis body 10, the second axis 210b is along the length direction of the main body assembly 200, or has a certain angle with the length direction of the body mechanism 20, and during the body mechanism 20 swinging about the rotation axis in the left-right direction, the second axis 210b always remains in the median vertical plane in the front-rear direction and perpendicular to the first axis 210a.

In an embodiment, as shown in FIG. 2 and FIG. 3, the chassis body 10 includes a roller set 110, and the roller set 110 includes two first roller bodies 110a. The cleaning assembly 30 is disposed on one side of the bottom of the chassis body 10 in the front-rear direction, and the first roller bodies 110a are disposed on the other side of the bottom of the chassis body 10 in the front-rear direction. The two first roller bodies 110a are symmetrically arranged with respect to a central axis of the chassis body 10 in the front-rear direction, to assist the main body assembly 200 to in steering or rotating the chassis body 10.

Illustratively, the cleaning assembly 30 is arranged on the front side of the bottom of the chassis body 10, and the two first roller bodies 110a are arranged on the rear side of the bottom of the chassis body 10 and are symmetrical with respect to the width direction of the chassis body 10. That is, the bottom of the chassis body 10 can be supported by the cleaning assembly 30 and the two first roller bodies 110a. The main body assembly 200 is arranged at the middle of the upper part of the chassis body 10. When the main body assembly 200 drives the chassis body 10 to rotate, the cleaning assembly 30, together with the two first roller bodies 110a, plays a supporting role. The two first roller bodies 110a can roll when the chassis body 10 rotates, so that sliding friction resistance is converted into rolling friction resistance, allowing the main body assembly 200 to drive the chassis body 10 to rotate more smoothly.

In an embodiment, the roller set 110 may further include at least one second roller body 110b. The second roller body 110b is arranged at the bottom of the chassis body 10 and close to the cleaning assembly 30, to provide support for the chassis body 10. This reduces the resistance between the cleaning assembly 30 and the ground, thereby facilitating the rolling and cleaning of the cleaning assembly 30.

Illustratively, one or two or more second roller bodies 110b may be provided. In a case that one second roller body 110b is provided, the second roller body 110b may be located at the center of the chassis body 10 and form a triangular configuration with the two first roller bodies 110a; in a case that two second roller bodies 110b are provided, the two second roller bodies 110b are arranged symmetrically with respect to the central axis of the chassis body 10 in the width direction of the chassis body 10, to allow the two second roller bodies 110b and the two first roller bodies 110a to provide better support for the chassis body 10. For example, the two second roller bodies 110b are arranged on the inner side of the two first roller bodies 110a, that is, the distance between the two second roller bodies 110b is less than that between the two first roller bodies 110a; or, the two second roller bodies 110b are arranged on the outer side of the two first roller bodies 110a.

In an embodiment, as shown in FIG. 2, the cleaning assembly 30 is located on the front side of the bottom of the chassis body 10, and the projection of the lower end of the body mechanism 20 on a horizontal plane is located between the projections of the cleaning assembly 30 and the first roller bodies 110a on the horizontal plane. This allows the rotating joint between the body mechanism 20 and the chassis body 10 to be as close as possible to the center of gravity of the chassis body 10, facilitating the rotation of the body mechanism 20.

In an embodiment, the horizontal distance between the lower end of the body mechanism 20 and the front side of the chassis body 10 is greater than the horizontal distance between the lower end of the body mechanism 20 and the rear side of the chassis body 10. Since the cleaning assembly 30 is located on the front side of the bottom of the chassis body 10, the water tank 40 is arranged at a relatively rear position of the chassis body 10. When the water tank 40 contains a large amount of liquid, its weight is significant. Therefore, shifting the center of gravity of the chassis body 10 to the rear, namely, arranging the hinge structure 210 on the rear side of the chassis body 10, facilitates the rotation of the body mechanism 20.

In an embodiment, the lower end of the body mechanism 20 is located above the center of gravity of the chassis body 10. Due to manufacturing or assembly tolerances, the center of gravity of the chassis body 10 may not always be located at the same position on the chassis body 10, and similarly, the joint between the body mechanism 20 and the chassis body 10 may not necessarily be at the center of gravity. That is, the lower end of the body mechanism 20 may be directly above the center of gravity or at an inclined position above the center of gravity, which is not limited herein.

It should be noted that the center of gravity of the chassis body 10 may refer to the center of gravity when the water tank 40 is at a half-full water level. When the water in the water tank 40 is less than half-full, the center of gravity of the chassis body 10 shifts forward, and the connection position of the body mechanism 20 with the chassis body 10 is behind the center of gravity of the chassis body 10. When the water in the water tank 40 is more than half-full, the center of gravity of the chassis body 10 shifts backward, and the connection position of the body mechanism 20 with the chassis body 10 is before the center of gravity of the chassis body 10.

In an embodiment, as shown in FIG. 1 and FIG. 4, the main body assembly 200 includes a grip portion 220. The grip portion 220 is located at an upper end of the main body assembly 200, so that users can hold the grip portion 220 to control the main body assembly 200 to drive the chassis body 10 to move.

In an embodiment, the center of gravity O of the main body assembly 200 is located in the connecting line between the geometric center of the grip portion 220 and the lower end of the body mechanism 20; or, the distance from the center of gravity O of the main body assembly 200 to the connecting line between the geometric center of the grip portion 220 and the lower end of the body mechanism 20 is less than or equal to 2.5 cm. When rotating the grip portion 220 relative to the chassis body 10, the body mechanism 20 also rotates about the connecting line between the geometric center of the grip portion 220 and the lower end of the body mechanism 20 as the rotation axis. By reasonably setting the position of the center of gravity of the body mechanism 20, the linear distance from the center of gravity to the rotation axis during the rotation of the body mechanism 20 is minimized. Consequently, the torque generated by gravity during the rotation is also reduced, and the impact of this torque on the rotation process is minimized. This ensures that users do not experience additional resistance when operating the grip portion 220, thereby enhancing the user experience.

The center of gravity of the chassis body 10 shifts as the state of the water in the water tank 40 installed on the chassis body 10 changes, similarly, in the case that the main body assembly 200 is installed with the water tank 40, the center of gravity of the main body assembly 200 also shifts as the state of the water in the water tank 40 installed on the main body assembly 200 changes, as indicated by O′ and O′ in FIG. 4. Therefore, setting the center of gravity of the body mechanism 20 to the center of gravity when the water tank 40 installed on the main body component 200 is half full can minimize the torque generated by gravity in both the empty and full water states of the water tank 40 installed on the main body component 200.

In an embodiment, as shown in FIG. 5, a battery 230 is provided inside the main body assembly 200. The battery 230 is disposed close to the lower end of the main body assembly 200, to lower the center of gravity of the body mechanism 20. This reduces the torque generated by the gravity of the body mechanism 20, which decreases the resistance when rotating and lifting the main body assembly 200, thereby facilitating the rotation of the body mechanism 20.

In an embodiment, the main body assembly 200 can rotate relative to the chassis body 10 to switch between an upright state and a non-upright state. That is, the main body assembly 200 can stand upright relative to the chassis body 10. The upright state is a placement state of the cleaning device. Generally, the main body assembly 200 is in the non-upright state when the cleaning device normally performs cleaning.

It should be noted that the upright state does not mean that the main body assembly 200 is completely vertical or perpendicular to the chassis body 10. Instead, it refers to the state in which the main body assembly 200 can be located above the chassis body 10 and maintain a natural static state.

In an embodiment, as shown in FIG. 5, the main body assembly 200 further includes a functional assembly 250 and a middle frame 240 for mounting the functional assembly 250. The middle frame 240 is disposed close to the lower end of the main body assembly 200. Setting the middle frame 240, which has a certain weight, closer to the lower end allows the center of gravity of the main body assembly 200 to be closer to the rotation axis, to reduce the torque generated by the gravity of the body mechanism 20 during rotation. This decreases the resistance when lifting and rotating the main body assembly 200, allowing the main body assembly 200 to rotate easily on the chassis body 10.

In an embodiment, one of the sewage tank 410 and the clean water tank 420 is disposed on the chassis body 10, and the other one is disposed on the main body assembly 200 and is located close to the lower end of the main body assembly 200. Setting the sewage tank 410 or the clean water tank 420, which has a certain weight, closer to the lower end allow the center of gravity of the main body assembly 200 to be closer to the rotation axis, to reduce the torque generated by the gravity of the body mechanism 20. This decreases the resistance when rotating and lifting the main body assembly 200, allowing for easy rotation.

Specifically, the sewage tank 410 or the clean water tank 420 is arranged close to the hinge structure 210, which shifts the center of gravity of the main body assembly 200 downward, thereby reducing the torque generated by the gravity of the body mechanism 20. This decreases the resistance when rotating and lifting the main body assembly 200, allowing for easy rotation of the main body assembly 200.

In an embodiment, as shown in FIG. 6, the functional assembly 250 is disposed on the rear side of the main body assembly 200. The cleaning device has a lying-down state, in which the main body assembly 200 is rotated to fit against the ground, such that the height of the cleaning device is reduced to the minimum, allowing for the cleaning of narrow areas with height restrictions on the cleaning device, such as under a bed. When the cleaning device is lying down, the gap (the gap D in FIG. 6) between the rear side of the functional assembly 250 and the ground is less than 1 cm. When the extension direction of the main body assembly 200 is rotated to be substantially parallel to the ground, the rear side of the functional assembly 250 can almost fit against the ground, allowing the chassis body 10 and the main body assembly 200 to extend under an item that has a height difference from the ground for cleaning. This state is referred to as the lying-down state of the cleaning device.

It should be noted that, in the present disclosure, “substantially parallel” refers to the situation that a tolerance range is allowed by manufacturing or assembly errors. For example, “substantially parallel” means that the parallelism between two components is within a range of ±5°, or that the two components are arranged at a small angle to each other, such as an angle of 15° or less.

The functional assembly 250 includes a sewage tank 410 or a clean water tank 420. The sewage tank 410 or the clean water tank 420 is arranged on the rear side of the main body assembly 200, and also the sewage 410 or the clean water tank 420 is allowed to be as close to the ground as possible without contact when the cleaning device is in the lying-down state, so that the outer diameter of the sewage tank 410 or the clean water tank 420 can be increased. This ensures the volume of the water tank 40, and also reduces the height of the water tank 40, which lowers the center of gravity of the water tank 40 on the main body assembly 200, thereby allowing the center of gravity of the water tank 40 to be as close as possible to the hinge structure 210.

In an embodiment, as shown in FIG. 2 and FIG. 7, the chassis body 10 is provided with a hinge base 120, and the hinge base 120 defines a connection cavity. The lower end of the body mechanism 20 is located in the connection cavity, and the body mechanism 20 is rotatably connected with the hinge base 120.

The hinge base 120 may be integrally formed with the chassis body 10, or the hinge base 120 may be fixed to the chassis body 10 by assembly. The lower end of the body mechanism 20 is connected to the hinge base 120 and can rotate from the front side of the hinge base 120 to the rear side of the hinge base 120 or from the rear side of the hinge base 120 to the front side of the hinge base 120.

In an embodiment, two side walls of the connection cavity are defined with rotating shaft holes 120b, and the lower end of the body mechanism 20 is rotatably mounted in the rotating shaft holes 120b.

In an embodiment, the lower end of the body mechanism 20 is sealingly connected to the hinge base 120 to prevent external liquid from entering the connection cavity through a gap between the body mechanism 20 and the hinge base 120, which could affect the operation or maintenance of the chassis body 10. For example, water in the connection cavity may further seep into the interior of the chassis body 10, or the connection cavity may require emptying when it accumulates water.

Illustratively, the body mechanism 20 and the hinge base 120 are in a sliding seal, or the gap between the body mechanism 20 and the hinge base 120 is covered by using a skin, an accordion cover, etc. This ensures a seal connection even when the body mechanism 20 and the hinge base 120 are in a rotation state.

In an embodiment, as shown in FIG. 8, a water guiding passage 130 communicating the connection cavity with the exterior of the chassis body 10 is provided inside the chassis body 10 and below the connection cavity, so that water entering the connection cavity can be discharged out of the chassis body 10 through the water guiding passage 130. This prevents the connection cavity from accumulating water, which could affect the operation or maintenance of the chassis body 10.

In an embodiment, as shown in FIG. 9, the chassis body 10 further includes an electronic assembly 140 and a water separation portion 141. The electronic assembly 140 is mounted inside the chassis body 10, and the water separation portion 141 is capable of isolate the electronic assembly 140 from the water guiding passage 130, so as to prevent water entering the connection cavity from affecting electronic elements inside the chassis body 10.

In an embodiment, as shown in FIG. 8 and FIG. 11, the water guiding passage 130 includes a water leakage cavity 130a and a water leakage hole 130b communicated with the water leakage cavity 130a. The water leakage cavity 130a is located below the connection cavity, such that liquid that leaks along the connection cavity will directly flow into the water leakage cavity 130a. The water leakage hole 130b is communicated with the outside, and is capable of discharging water out of the chassis body 10, preventing the water from accumulating in the water leakage cavity 130a.

In an embodiment, as shown in FIG. 8, the cleaning device includes a sewage suction pipe 60. A first end of the sewage suction pipe 60 is connected to a sewage suction port 61 of the cleaning assembly 30, and a second end of the sewage suction pipe 60 is connected to the sewage tank 410. The sewage suction pipe 60 is at least partially arranged in the water leakage cavity 130a, such that the sewage suction pipe 60 and the water leakage cavity 130a share space, making the structure of the cleaning device more compact.

In an embodiment, the water leakage hole 130b is located at a bottom of the water leakage cavity 130a, to drain accumulated water in the water leakage cavity 130a.

In an embodiment, as shown in FIG. 11 and FIG. 12, the chassis body 10 is provided with a connection column 130c for threading a screw. At least part of the connection column 130c is located in the water leakage cavity 130a, and there is a gap between the connection column 130c and a bottom plate of the chassis body 10. In the embodiment, the water leakage hole 130b is located at the bottom of the chassis body 10 and directly faces the connection column 130c, so that the screw can pass through the water leakage hole 130b and be fixed with the connection column 130c, facilitating drainage by the connection column 130c. The water in the water leakage cavity 130a will flow out through the water leakage hole 130b from the gap. The water leakage hole 130b is also used for drainage, thus eliminating the need for additional holes in the water leakage cavity 130a.

In an embodiment, as shown in FIG. 7 and FIG. 13 to FIG. 16, the chassis body 10 includes a chassis base 10a and a chassis cover 10b covering the upper end of chassis base 10. The hinge base 120 is fixed on the upper part of the chassis base 10a, and the chassis cover 10b and/or the hinge base 120 is defined with a liquid passage 120c at the seam of the chassis cover 10b and the hinge base 120. The liquid passage 120c is capable of discharging liquid flowing into the chassis base 10a through the seam, preventing the liquid from entering the chassis base 10a through the seam between the chassis cover 10b and the hinge base 120.

In an embodiment, the liquid passage 120c is communicated with the water leakage cavity 130a, to allow liquid in the liquid passage 120c to be discharged from the water leakage hole 130b of the water leakage cavity 130a.

In an embodiment, the hinge base 120 is provided with a water blocking flange 121 along the seam between the hinge base 120 and the chassis cover 10b. The water blocking flange 121 includes a water guiding groove 122 and a water guiding port 123. The liquid passage 120c is formed by the water guiding groove 122 and the water guiding port 123. The water guiding groove 122 is communicated with the outside of the chassis base 10a through the water guiding port 123, to allow the water entering the liquid passage 120c to be discharged to the outside of the chassis base 10a through the water guiding port 123.

In an embodiment, the water guiding port 123 is located above the water leakage cavity 130a. When liquid enters the water guiding groove 122 from the seam between the chassis cover 10b and the hinge base 120, the liquid flows along the water guiding groove 122 and into the water leakage cavity 130a from the water guiding port 123, and is discharged from the water leakage hole 130b.

In an embodiment, the water guiding groove 122 is obliquely arranged, and the water guiding port 123 is located at the lowest part of the water guiding groove 122, so that the liquid can flow downward along a guiding direction of the water guiding groove 122 under the action of its own gravity, and finally is discharged through the water guiding port 123. Further, the water guiding port 123 is communicated with the water leakage cavity 130a, to allow the liquid to be discharged through the water leakage hole 130b.

In an embodiment, as shown in FIG. 16, the chassis cover 10b is provided with a first water blocking edge 101b along the seam between the hinge base 120 and the chassis cover 10b. The first water blocking edge 101b is arranged downward. The first water blocking edge 101b extends into the water guiding groove 122, to block the liquid at the seam from flowing into the interior of the chassis body 10 and guide the liquid at the seam to flow into the water guiding groove 122, serving a guiding role. This allows the liquid to flow along the first water blocking edge 101b into the water guiding groove 122.

In an embodiment, the chassis cover 10b is provided with a second water blocking edge 102b along the seam between the hinge base 120 and the chassis cover 10b. The second water blocking edge 102b is arranged upward, to reduce a probability that liquid enters from the seam between the hinge base 120 and the chassis cover 10b.

In an embodiment, as shown in FIG. 17 and FIG. 18, the chassis body 10 is defined with a first mounting cavity 150. An electronic assembly 140 and a water passage structure 151b communicated with the clean water tank 420 are provided in the first mounting cavity 150. The electronic assembly 140 is disposed above the water passage structure 151b to prevent condensation on the outer side of the water passage structure 151b, which could otherwise affect the use of the electronic assembly 140.

In an embodiment, the first mounting cavity 150 is divided into two mounting spaces along the up-down direction. The water passage structure 151b is mounted in the lower mounting space 150b, and the electronic elements are mounted in the upper mounting space 150a.

In an embodiment, the water passage structure 151b at least includes a water supply pump and a water supply pipe. The clean water tank 420 supplies water to the cleaning assembly 30 through the water supply pipe. The water supply pump is capable of providing a suction power to the water supply pipe, to allow the liquid in the clean water tank 420 to flow to the cleaning assembly 30 or the ground.

Illustratively, the water supply pump and the water supply pipe are both arranged in the lower part of the first mounting cavity 150, and the electronic assembly 140 is disposed above the water supply pump. One end of the water supply pipe is communicated with the clean water tank 420, and the other end of the water supply pipe is capable of supplying water to the cleaning assembly 30 or the ground. The water supply pump is connected between the two ends of the water supply pipe.

In an embodiment, as shown in FIG. 19, the water passage structure further includes an electrolyzed water assembly and/or a water-free detector. The clean water tank 420 supplies water to the cleaning assembly 30 through the water supply pipe, and in this process, the water passes through the water supply pump, the electrolyzed water assembly or the water-free detector in sequence; or the clean water tank 420 supplies water to the cleaning assembly 30 or the ground through the water supply pipe, and in this process, the water passes through the water supply pump, the water-free detector, and the electrolyzed water assembly in sequence.

In an embodiment, as shown in FIG. 18, the chassis body 10 is defined with a second mounting cavity 151. The second mounting cavity 151 is isolated from the first mounting cavity 150 defined in the chassis body 10. A drive motor for driving the cleaning assembly 30 is mounted in the second mounting cavity 151, so that the drive motor is isolated from the water passage structure 151b in the first mounting cavity 150, preventing the drive motor from being disturbed by the water passage structure 151b.

In an embodiment, the first mounting cavity 150 and the second mounting cavity 151 are respectively arranged on two sides of the rotating joint between the chassis body 10 and the body mechanism 20 along the left-right direction, to improve the space utilization of the chassis body 10. This makes the structure of the chassis body 10 more compact, which further reduces the volume of the chassis body 10, allowing the cleaning device to clean in a narrower corner.

Illustratively, the first mounting cavity 150 and the second mounting cavity 151 are symmetrically arranged on the left and right sides of the water leakage cavity 130a, and are respectively for mounting the water supply pump and the drive motor. This ensures that the weight distribution of the chassis body 10 is balanced in the left-right direction, that is, the center of gravity of the chassis body 10 is located as close to the center of the chassis body 10 as possible.

In an embodiment, as shown in FIG. 13 and FIG. 14, the chassis body 10 includes a chassis base 10a and a chassis cover 10b covering the chassis base 10a. The chassis body 10 is defined with an installation cavity 120a. The chassis cover 10b and/or the chassis base 10a is connected with an edge wrapping structure 103. The chassis cover 10b and the edge wrapping structure 103 are capable of protecting the installation cavity 120a defined in the chassis base 10a, so as to prevent external liquid from entering the installation cavity 120a. In an embodiment, the edge wrapping structure 103 includes a first wrapping edge 103a disposed on the chassis cover 10b. The first wrapping edge 103a partially or completely surrounds the outer side of the installation cavity 120a, to prevent external liquid from flowing into a connection position between the chassis cover 10b and the chassis base 10a.

In an embodiment, the edge wrapping structure 103 further includes a second wrapping edge 103b disposed on the chassis base 10a. The second wrapping edge 103b partially or completely surrounds the inner side of the installation cavity 120a. The second wrapping edge 103b abuts against the inner wall of the chassis cover 10b, such that the gap between a part or all of the chassis cover 10b and the chassis base 10a is reduced to prevent liquid from entering.

In an embodiment, the chassis body 10 is defined with an installation cavity 120a, and an inner wall of the installation cavity 120a is defined with a water leakage flow path 152, for guiding the liquid entering the installation cavity 120a to the bottom of the installation cavity 120a and out of the cleaning device.

Illustratively, as shown in FIG. 10, the installation cavity 120a includes a first mounting cavity 150, and the water leakage flow path 152 is disposed in the first mounting cavity 150.

Applicant, through creative effort, finds that in the related art, it is inconvenient to remove and place the water tank 40 of the cleaning device. The removal and placement processes entirely depend on the user's physical effort, leading to low efficiency and being not labor-saving, which in turn results in a poor user experience.

In order to solve the above technical problems, according to the cleaning device provided in the embodiments of the present disclosure, the chassis body 10 is provided with a water tank installation position 160. The water tank installation position 160 and the water tank 40 are provided with a first guiding assembly for guiding the water tank 40 to be installed in place along a substantially horizontal installation direction, so that the water tank 40 can be installed in the water tank installation position 160 under the guidance of the first guiding assembly.

It should be noted that the water tank installation position 160 and an installation direction of the water tank 40 are not required to be perfectly horizontal, and may be at a certain angle with the horizontal direction, which is not limited herein.

In an embodiment, as shown in FIG. 20, the first guiding assembly includes a first inclined surface 401 and a second inclined surface 402. The first inclined surface 401 is provided at the bottom of the water tank installation position 160 and is inclined toward the installation direction of the water tank 40, that is, the height of the first inclined surface 401 gradually decreases along the installation direction of the water tank 40. The second inclined surface 402 is provided at the bottom of the water tank 40 and is matched to the first inclined surface 401. During installation, due to the interaction of the two inclined surfaces, the gravity of the water tank 40 generates a component force that assists the water tank 40 in entering the water tank installation position 160. And after the water tank 40 is properly installed, the component force generated by gravity can prevent the water tank 40 from disengaging from the water tank installation position 160. This allows the water tank 40 to be installed and positioned in the water tank installation position 160 by the cooperation of the first inclined surface 401 and the second inclined surface 402.

In an embodiment, the first guiding assembly further includes a third inclined surface 403 provided on a top surface of the water tank installation position 160. The third inclined surface 403 is matched to the first inclined surface 401. That is, the third inclined surface 403 is substantially parallel to the first inclined surface 401, allowing the water tank 40 to be precisely positioned under the guidance of the third inclined surface 403 and the first inclined surface 401. Additionally, the third inclined surface 403 and the first inclined surface 401 together define the installation direction of the water tank 40, which is the inclination direction of the inclined surfaces, as indicated by the arrow in FIG. 20.

In an embodiment, the first guiding assembly further includes a fourth inclined surface 404 provided on the top surface of the water tank 40. The fourth inclined surface 404 is matched to the first inclined surface 401. That is, the fourth inclined surface 404 is matched to the second inclined surface 402 and the third inclined surface 403, and the fourth inclined surface 404 is substantially parallel to the first inclined surface 401, such that the water tank 40 can be installed on the water tank installation position 160 under the guidance of the fourth inclined surface 404, the second inclined surface 402, and the first inclined surface 401. Designing the top surface of the water tank 40 as an inclined surface can maximize the utilization of the space of the water tank installation position 160, ensuring the volume of the water tank 40.

In an embodiment, an end of the first inclined surface 401 facing away from the installation direction of the water tank 40 is connected with a flat surface 405. This can reduce the sharp corners that may result from the inclined surface, preventing users from getting scratched or pricked.

In an embodiment, referring to FIG. 21 and FIG. 23, part of the bottom of the water tank installation position 160 protrudes upward to form the first inclined surface 401, and the first inclined surface 401 includes a first left inclined surface 401a and a first right inclined surface 401b. The first left inclined surface 401a and the first right inclined surface 401b are arranged at intervals along the left-right direction of the chassis body, and an accommodation position for the water tank 40 is formed between the first left inclined surface 401a and the first right inclined surface 401b. The water tank 40 has a structure that matches the shapes of the first left inclined surface 401a, the first right inclined surface 401b and the accommodation position, such that the water tank 40 can be installed in the water tank installation position 160 under the guidance of the first left inclined surface 401a and the first right inclined surface 401b. The structure of the water tank 40 corresponding to the accommodation position of the water tank 40 can make full use of the space of the water tank installation position 160, ensuring that the water tank 40 has sufficient internal volume to hold the liquid.

In an embodiment, part of the bottom of the water tank 40 may be recessed upward to form the second inclined surface 402. There are two second inclined surfaces 402, and the two second inclined surfaces 402 respectively correspond to the first left inclined surface 401a and the first right inclined surface 401b.

In an embodiment, the installation direction of the water tank 40 is from rear to front; correspondingly, the manner of removing the water tank 40 from the cleaning device is to pull it out backwards. During daily cleaning with a floor washer, the user typically stands behind the floor washer. When the user notices that the water level in the water tank 40 is insufficient (in the case of the water tank 40 being the clean water tank 420), or the water tank 40 requires emptying (in the case of the water tank 40 being the sewage tank 410), they may directly remove the water tank 40 from the rear of the floor washer. Compared to the conventional design that the water tank 40 is located on the front side of the floor washer and needs to be removed from the front, this technical solution eliminates the need for the user to walk around to the front of the floor washer to remove the water tank 40. Similarly, after the user has finished refilling or emptying the water tank 40, they may directly walk to the rear of the floor washer to place the water tank 40 from the back to the front, and continue cleaning while holding the floor washer from the rear, which improves the convenience of daily operation and maintenance of the floor washer for the user, thereby being beneficial for enhancing the user experience.

In some embodiments, the water tank 40 may be located behind the rotational connection between the body mechanism 20 and the chassis body 10. In this way, when user remove the water tank 40, the removal process is basically free from the interference of the body mechanism 20 and the rotation connection, further facilitating the user operation.

In some embodiments, the installation directions of the sewage tank 410 and the clean water tank 420 may be from rear to front, including the case that the sewage tank 410 and the clean water tank 420 are both installed on the chassis body 10, or the case that the clean water tank 420 is installed on the chassis body 10 and the sewage tank 410 is installed on the rear side of the body mechanism 20 as shown in FIG. 5, or the case that the sewage tank 410 is installed on the chassis body 10 and the clean water tank 420 is installed on the rear side of the body mechanism 20. The clean water tank 420 and the sewage tank 410 are set to have the same installation direction (both are installed from rear to front), which facilitates users in maintaining the clean water tank 420 and the sewage tank 410 in a unified way, conforming to user operating habits.

Illustratively, there are two first inclined surfaces 401 and two second inclined surfaces 402. The two first inclined surfaces 401 are respectively arranged on the left and right sides of the water tank installation position 160, and the two second inclined surfaces 402 are respectively arranged on the left and right sides of the water tank 40. Additionally, the first inclined surfaces 401 are arranged on two sides to directly connect with the side walls of the installation position, so the strength of the first inclined surfaces 401 is higher than that of the bottom surface of the installation position. The water tank 40 can be more stably supported by the first inclined surfaces 401 after it is properly installed, reducing deformation of the chassis caused by supporting the water tank 40.

In an embodiment, a roller installation space 406 may be defined below the first inclined surface 401. That is, the first inclined surface 401 serves as a guide, and the area below the first inclined surface 401 is designed as the roller installation space 406 that can accommodate the first roller body 110a. In the case that part of the bottom of the water tank installation position 160 is protruded upward to form the first inclined surface 401, an upwardly concave space is formed under the first inclined surface 401, and this space is utilized to form the roller installation space 406 for mounting the first roller body 110a. This effectively utilizes the structural space of the chassis body 10, which contributes to a more compact structure of the chassis body 10, and thereby helping to reduce the overall volume of the chassis body 10.

In some embodiments of the present disclosure, there are two first roller bodies 110a. One first roller body 110a may be arranged below the first left inclined surface 401a, and the other first roller body 110a may be arranged below the first right inclined surface 401b, making better use of space. The rollers are arranged below the inclined surfaces and used to support the chassis body 10, such that a support force of the ground applied on the rollers can be transmitted to the inclined surfaces, which in turns supports the water tank 40 arranged on the inclined surfaces, thereby providing a more stable support for the water tank 40. This provides upward support beneath the chassis body 10, further reducing the risk of chassis deformation caused by the need for the chassis body 10 to support the water tank 40.

In an embodiment, referring to FIG. 22 and FIG. 25, the water tank 40 includes an interface passage 430, and the chassis body 10 may be provided with a docking portion 161 and a water passage structure 151b communicated with the docking portion 161. When the water tank 40 is installed on the chassis body 10, the docking portion 161 of the chassis body 10 is docked and communicated with the interface passage 430 of the water tank 40, allowing the water passage structure 151b of the chassis body 10 to be communicated with the water tank 40. This further allows the clean water in the water tank 40 to be output through the water passage structure 151b of the chassis body 10, or allows the sewage generated during the cleaning process of the cleaning device to be collected into the water tank 40 through the water passage structure 151b of the chassis body 10.

The water tank 40 may further include an installation surface 440. The installation surface 440 is the surface of the water tank 40 that is docked with the water tank installation position 160 along the installation direction of the water tank 40. The interface passage 430 is defined in the installation surface 440 of the water tank 40, and the interface passage 430 is inclined, with its inclination direction substantially parallel to the installation direction of the water tank 40. Therefore, during the process of installing the water tank 40 into the water tank installation position 160 along the installation direction, the interface passage 430 can be docked with the docking portion 161 of the chassis body 10, to allow the water tank 40 to be docked with the chassis body 10 through the interface passage 430 for clean water supply or waste water collection.

Illustratively, referring to FIG. 21 and FIG. 23, the docking portion 161 on the chassis body 10 is located on the surface of the water tank installation position 160 corresponding to the docking face of the water tank 40, the position of the docking portion 161 corresponds to the position of the interface passage 430, and the water passage structure 151b is communicated with the liquid passage 120c. That is, the water tank 40 can be docked with the docking portion 161 by the interface passage 430, to allow the water passage structure 151b to communicate with the interface passage 430, achieving clean water supply or waste water collection. The docking portion 161 is matched to the interface passage 430, and may be set in the same inclination manner. Moreover, the inclination direction is the same as the installation direction of the water tank 40.

In an embodiment, as shown in FIG. 21 and FIG. 22, the chassis body 10 is provided with a water tank installation position 160. The water tank 40 includes an installation surface 440, which is the surface of the water tank 40 docked with the water tank installation position 160 along the installation direction of the water tank 40. The installation surface 440 of the water tank 40 and the water tank installation position 160 are connected by a magnetic attraction structure. During the process of installing the water tank 40 in the water tank installation position 160 along the installation direction, the magnetic attraction structure provides an attractive force for the movement of the water tank 40 along the direction of the water tank installation position 160. Therefore, first, this facilitates a quick installation of the water tank 40 into the water tank installation position 160, thereby improving the installation efficiency; second, the magnetic attraction structure assists in the alignment of the water tank 40 when installing the water tank 40 into the water tank installation position 160, serving a guiding function; third, since the docking of the docking portion 161 with the interface passage 430 also occurs between the installation surface 440 of the water tank 40 and the water tank installation position 160, the attractive force provided by the magnetic attraction structure is also beneficial in enhancing the stability of the docking between the docking position 161 and the interface passage 430.

In an embodiment, the magnetic attraction structure may include a first magnetic attraction assembly 441 and a second magnetic attraction assembly 162. The first magnetic attraction assembly 441 is disposed on the installation surface 440 of the water tank 40, and the second magnetic attraction assembly 162 is disposed on the water tank installation position 160. The second magnetic attraction assembly 162 is arranged corresponding to the first magnetic attraction assembly 441, allowing the water tank 40 to be installed in the water tank installation position 160 by the cooperation of the second magnetic attachment assembly 162 and the first magnetic attachment assembly 441. This design is simple in structure and convenient for installation and removal.

Illustratively, the first magnetic attraction assembly 441 and/or the second magnetic attraction assembly 162 may be an iron sheet, a permanent magnet, an electromagnet, or a magnetic matrix. It should be noted that the foregoing embodiments do not include the solution in which both the first magnetic attraction assembly 441 and the second magnetic attraction assembly 162 are iron sheets.

Illustratively, the first magnetic attraction assembly 441 includes two first magnetic attraction components 441a, and the second magnetic attraction assembly 162 includes two second magnetic attraction components 162a. The two first magnetic attraction components 441a are arranged on two sides of the installation surface 440. The first magnetic attraction components 441a are arranged corresponding to the second magnetic attraction components 162a. The magnetic attraction components arranged on the two sides of the installation surface 440 can provide traction to both sides of the water tank 40 during the installation process, thereby correcting the position of the water tank 40. Moreover, since there is the traction on both sides of the water tank 40, the traction forces are relatively balanced during the installation process, preventing the water tank 40 from tilting and causing jams during installation.

Further, the two first magnetic attraction components 441a may be symmetrical on the two sides of the installation surface 440. It should be noted that, the two first magnetic attraction components 441a being symmetrical refers to that the two first magnetic attraction components 441a are symmetrical on the two sides of the water tank 40 in the left-right direction of the water tank 40, specifically symmetrical about a central axis of the water tank 40 in the left-right direction of the water tank 40. This ensures that the magnetic attraction forces exerted on the two sides of the water tank 40 is balanced during the installation process, which is beneficial for accurate installation and reduces the risk of jams. Moreover, when removing the water tank 40 from the water tank installation position 160, the forces on the two sides of the water tank 40 are substantially the same, thus facilitating smooth removal of the water tank 40.

In an embodiment, in a configuration that there are two first magnetic attraction components 441a, the two first magnetic attraction components 441a may be respectively located on two sides of the interface passage 430. The two first magnetic components 441a are respectively arranged on two sides of the interface passage 430, such that a magnetic force can be applied to the two sides of the interface passage 430 to achieve fixation. This better ensures the stability of the connection position of the interface passage 430, which in turn enhances the sealing performance after the interface passage 430 is docked with the docking portion 161.

In an embodiment, an upper edge of the first magnetic attraction component 441a may be higher than the interface passage 430, and a lower edge of the first magnetic attraction component 441a may be lower than the interface passage 430. That is, the magnetic force action area of the second magnetic attraction component 162a and the first magnetic attraction component 441a can cover the entire interface passage 430 in height, ensuring a tight connection between the interface passage 430 and the water inlet passage.

In some embodiments, the first magnetic attraction component 441a may include a magnetic matrix or an electromagnet, so that the first magnetic attraction component 441a can change the magnetic pole that faces the second magnetic attraction component 162a, facilitating the installation and removal of the water tank 40. That is, during installation, the first magnetic component 441 a and the second magnetic component 162a are set to an attractive state; during removal, the first magnetic component 441a and the second magnetic component 162a are set to a repulsive state.

In an embodiment, the second magnetic attraction component 162a includes an electromagnet or a magnetic matrix, so that the second magnetic attraction component 162a can change the magnetic pole that faces the first magnetic attraction component 441a, facilitating the installation and removal of the water tank 40. That is, during installation, the first magnetic component 441a and the second magnetic component 162a are set to an attractive state; during removal, the first magnetic component 441a and the second magnetic component 162a are set to a repulsive state.

In some other embodiments, at least one of the first magnetic attraction component 441a and the second magnetic attraction component 162a may include an electromagnet. When the electromagnet is powered, a magnetic attraction force is generated between the first magnetic component 441a and the second magnetic component 162a. When the electromagnet is de-energized, there is no interactive force between the first magnetic component 441a and the second magnetic component 162a, and they are in a force-unloading state.

As can be seen from the above, at least part of the magnetic attraction structure is a magnetic matrix or an electromagnet, which allows the first magnetic attraction component 441a and the second magnetic attraction component 162a to switch between the attracted state, the repulsive state, and the no-interaction state, meeting different disassembly and assembly scenarios for the water tank 40. For example, when the water tank 40 needs to be installed in the water tank installation position 160, the magnetic attraction structure is controlled to generate a magnetic attraction force, thereby improving the installation efficiency and effect of the water tank 40. If the attraction between the water tank 40 and the water tank installation position 160 always exists, the attraction will hinder the removal of the water tank 40 when it needs to be detached from the water tank installation position 160. Therefore, according to the technical solution provided by the embodiments of the present disclosure, the magnetic attraction structure can be switched to the repulsive state or the force-unloading state, which facilitates the removal of the water tank 40 from the water tank installation position 160. In particular, when the magnetic attraction structure is switched to the repulsive state, the repulsive force provided by the magnetic attraction structure gives a tendency to push the water tank 40 along the removal direction, which is more conducive to the quick disassembly of the water tank 40 and reduces the disassembly difficulty.

In an embodiment, as shown in FIG. 26 or FIG. 27, the cleaning device may include a control apparatus electrically connected to the electromagnet or the magnetic matrix. The control apparatus is capable of receiving a control instruction input by a user, and control a magnetic pole of the magnetic matrix or the electromagnet to change according to the control instruction.

The cleaning apparatus may further include an input apparatus electrically connected to the control apparatus. Illustratively, the input apparatus may be a button, a touch screen, or a voice receiving apparatus, etc. In some other embodiments, a trigger instruction received by the control apparatus may be sent by a control terminal, that is, the input apparatus is not provided on the cleaning device, as shown in FIG. 26; or the input apparatus is provided on an external control terminal, as shown in FIG. 27. The control terminal is communicated with the control apparatus, and the control terminal is installed with an application (APP) for a user to input the trigger instruction, and the user may input the control instruction by operating the APP.

That is, the cleaning device may control the water tank 40 and the water tank installation position 160 to switch between an attracted state and a non-attracted state (the repulsive state or the force-unloading state) according to user needs, thereby better meeting user requirements.

It should be noted that, the connection between the input apparatus and the control apparatus may be wired or wireless, which is not limited herein.

In some embodiments, the cleaning device may further include an indication apparatus, which is capable of indicating that the water tank installation position 160 is currently in an installation state or a removal state. Therefore, the user may input the control instruction by the input apparatus according to his/her requirements, to change the state of the water tank installation position 160, thereby meetings the requirements of removal or installation.

It should be noted that, the “installation state” refers to the attracted state between the water tank installation position 160 and the water tank 40, and the “removal state” refers to the repulsive state or the force-unloading state between the water tank installation position 160 and the water tank 40.

In order to identify the state between the water tank 40 and the water tank installation position 160, a force-unloading detection apparatus may be provided to detect the relative state between the water tank 40 and the water tank installation position 160. The force-unloading detection apparatus may be electrically connected to the indication apparatus. In an embodiment, the force-unloading detection apparatus may be a pressure sensor arranged between the docking surface of the water tank 40 and the water tank installation position 160, and the pressure sensor is capable of detecting a pressure between the water tank 40 and the water tank installation position 160. When the pressure detected by the pressure sensor is greater than a first preset value, it may be determined that the water tank 40 and the water tank installation position 160 are in the attracted state; and when the pressure detected by the pressure sensor is less than a second preset value, it may be determined that the water tank 40 and the water tank installation position 160 are in the repulsive state or the force-unloading state. The first preset value is greater than or equal to the second preset value. For another example, in some other embodiments, the force-unloading detection apparatus may be a current detection apparatus, and the current detection apparatus is capable of detecting a current direction and/or an energization state of the magnetic attraction structure, so as to determine the current state of the magnetic attraction structure according to the current direction and/or the energization state, that is, determine that the water tank 40 and the water tank installation position 160 are in the repulsive state or the force-unloading state. There may be various manners for identifying the state between the water tank 40 and the water tank installation position 160, which is not limited herein.

In some embodiments, the cleaning device may further include an in-position detection apparatus, which is capable of detecting whether the water tank 40 is installed in the water tank installation position 160. In a case that the water tank 40 is not in the water tank installation position 160, indicating that the water tank 40 has been removed, it is determined that the user's next step is to install the water tank 40 in the water tank installation position 160, and the control apparatus automatically controls the water tank installation position 160 to be in the installation state. That is, by controlling the polarity of the electromagnet or the electromagnetic matrix, an attractive force is generated between the water tank installation position 160 and the water tank 40. This eliminates the need for users to manually switch the state of the installation position, thereby enhancing the user experience. Illustratively, the in-position detection apparatus may include, but is not limited to, a Hall position sensor, a photosensitive position sensor, a visual position sensor, and the like.

In some embodiments, a second guiding assembly capable of limiting the water tank 40 in the left-right direction during installation may be provided between the water tank installation position 160 and the water tank 40.

Illustratively, as shown in FIG. 21 to FIG. 24, the second guiding assembly may include a first guiding side wall 407 disposed on the chassis body 10 and a second guiding side wall 408 disposed on the water tank 40. The first guiding side wall 407 and the second guiding side wall 408 are arranged correspondingly in the left-right direction of the chassis body 10. There are at least two first guiding side walls 407 and at least two second guiding side walls 408. The cooperation of the first guiding side walls 407 and the second guiding side walls 408 helps to limit the left and right positions of the water tank 40 during installation.

Illustratively, the first guiding side wall 407 is arranged corresponding to the second guiding side wall 408, and there are at least two first guiding side walls 407 and at least two second guiding side walls 408. As shown in FIG. 23, the extension directions of the first guiding side walls 407 and the second guiding side walls 408 are the same as the installation direction of the water tank 40 or forms an angle of less than 10° with the installation direction of the water tank 40, to limit and guide the water tank 40 in the left-right direction during the installation process. This allows the water tank 40 to smoothly enter the water tank installation position 160 and further facilitates the successful docking of the interface passage 430 with the water inlet passage.

The two first guiding side walls 407 may be respectively located on two sides of the chassis body 10. As shown in FIG. 28, the two first guiding side walls 407 may face each other. Alternatively, as shown in FIG. 29, the two first guiding side walls 407 may face away from each other. That is, during installation, the water tank 40 is clamped between the two first guiding side walls 407 for guidance, or the two first guiding side walls 407 clamp the water tank 40 for guidance.

In some embodiments, as shown in FIG. 28, the two first guiding side walls 407 face each other, and the distance between the two first guiding side walls 407 gradually decreases along the installation direction. By the two first guiding side walls 407, the water tank 40 can be roughly positioned at the beginning of the installation, and then precisely positioned as the installation progresses along the direction of the first guiding side walls 407. This not only allows the front part of the water tank 40 to quickly enter the water tank installation position 160, but also gradually guides the water tank 40 to the preset installation position and ensures that the water tank 40 reliably remains in the preset installation position, thereby guaranteeing assembly efficiency while also enhancing the reliability after installation.

In some other embodiments, as shown in FIG. 29, the two first guiding side walls 407 may face away from each other. During installation, the water tank 40 clamps the two first guiding side walls 407. The distance between the two first guiding side walls 407 may gradually increase along the installation direction. By the two first guiding side walls 407, the water tank 40 can be roughly positioned at the beginning of the installation, and then precisely positioned as the installation progresses along the direction of the first guiding side walls 407.

In an embodiment, as shown in FIG. 21 and FIG. 22, the second guiding assembly includes a first step 407a provided on the chassis body 10 and a second step 408a provided on the water tank 40. The second step 408a is matched with the first step 407a. An edge of the first step 407a forms the first guiding side wall 407, and an edge of the second step 408a forms the second guiding side wall 408.

In an embodiment, as shown in FIG. 23 and FIG. 24, the second guiding assembly includes a guiding rib 408b provided on the chassis body 10 and a guiding groove 407b provided on the water tank 40. The guiding groove 407b is matched with the guiding rib 408b. Two side walls of the guiding groove 407b form the first guiding side wall 407, and two side walls of the guiding rib 408b form the second guiding side wall 408.

Alternatively, there are at least two guiding ribs 408b and at least two guiding grooves 407b. Outer side walls or inner side walls of the two guiding ribs 408b form the first guiding side wall 407; inner side walls or outer side walls of the two guiding grooves 407b form the second guiding side wall 408.

In an embodiment, the guiding ribs 408b are arranged on the second inclined surface 402. A guiding groove 407b is defined in the first left inclined surface 401a and a guiding groove 407b is defined in the first right inclined surface 401b. The shapes and positions of the two guiding grooves 407b correspond to those of the guiding ribs 408b, making the guiding structure of the water tank 40 more compact.

In an embodiment, as shown in FIG. 30, the water tank 40 includes a tank body 41 and a movable handle 450 rotatable relative to the tank body 41. When removing the tank body 41, by rotating the movable handle 450, the movable handle 450 can abut against the chassis body 10 to push the tank body 41 out. The movable handle 450 may be arranged on a rear side of the tank body 41 (i.e., the rear side of the water tank 40 when the water tank 40 is in the installed state), and the rotation axis of the movable handle 450 may extend along the left-right direction of the water tank 40.

Illustratively, taking the clean water tank 420 as an example, the clean water tank 420 includes a clean water tank body and a movable handle 450. A middle part of the movable handle 450 is rotatably connected to the tank body 41. When removing the clean water tank 420, the lower part of the movable handle 450 is pulled, causing the entire movable handle 450 to rotate, and the upper part of the movable handle 450 can abut against the chassis body 10 to provide a force that pushes the clean water tank 420 away from the chassis body 10, thereby overcoming the static friction force when the water tank 40 is initially removed. In a case that magnetic positioning is used between the water tank 40 and the installation position, the lever principle is utilized to overcome the relatively large magnetic attraction force when initially removing the water tank 40, making it easier to take out the water tank 40.

In an embodiment, as shown in FIG. 31 and FIG. 32, the movable handle 450 includes a handle portion 450a, a hinge portion 450b, and an abutment portion 450c that are connected in sequence. The hinge portion 450b is hinged with the tank body 41. When the handle portion 450a drives the hinge portion 450b to rotate, the abutment portion 450c abuts against the chassis body 10, such that the tank body 41 can be pushed out by using the lever principle.

In an embodiment, as shown in FIG. 30, the water tank 40 further includes a housing 42 connected to the tank body 41. The housing 42 is mounted on the side of the tank body 41 exposing the water tank installation position 160. The movable handle 450 is rotatably mounted on the housing 42, and the hinge structures of the movable handle 450 are all disposed on the housing 42, which simplifies the processing of the tank body 41.

In an embodiment, as shown in FIG. 33 and FIG. 34, the water tank 40 includes a tank body 41 and a housing 42 connected to each other. The housing 42 is mounted on the side of the tank body 41 exposing to the water tank installation position 160, to protect the tank body 41 and facilitate processing and assembly of the tank body 41.

In an embodiment, the shape of the housing 42 is matched to the shape of the water tank installation position 160, so that after the water tank 40 is installed in place, the housing 42 can enclose the water tank installation position 160, serving to enclose the water tank installation position 160.

In an embodiment, the tank body 41 is made of a light-transmitting material, while the housing 42 is made of a non-light-transmitting material. This design allows the water tank 40 to use an optoelectronic sensor as needed, since the optoelectronic sensor uses light for signal acquisition, and external light can affect the sensitivity and accuracy of the optoelectronic sensor. By using the housing 42 to shield light, the sensitivity and accuracy of the optoelectronic sensor can be improved. Additionally, this design provides protection and light shielding for the water tank 40, reducing the impact of external environment on the liquid inside the water tank 40.

In an embodiment, the housing 42 and the tank body 41 are connected by a first connection structure. The first connection structure includes a convex rib structure 43a arranged on one of the housing 42 and the tank body 41, and a guiding groove structure 43b arranged on the other one of the housing 42 and the tank body 41. When the housing 42 is connected with the tank body 41, the convex rib structure 43a is docked with the guiding groove structure 43b, achieving the connection between housing 42 and tank body 41.

In an embodiment, an end of the convex rib structure 43a is provided with a snap-fit fastener 44a, and a bottom of the guiding groove structure 43b is provided with a snap-fit position 44b corresponding to the snap-fit fastener 44a. When the housing 42 is connected to the tank body 41, the snap-fit fastener 44a is engaged in the snap-fit position 44b.

In an embodiment, the housing 42 and the tank body 41 are connected by a second connection structure. The second connection structure includes a threaded connection column 45a provided on one of the housing 42 and the tank body 41, and a threaded connection hole 45b provided on the other one of the housing 42 and the tank body 41. The threaded connection hole 45b corresponds to the threaded connection column 45a.

In an embodiment, an extension direction of the threaded connection column 45a is the same as an extension direction of the convex rib structure 43a.

In an embodiment, the first connection structure and the second connection structure are respectively located on two sides of the housing 42 facing the tank body 41, to ensure the stability of the connection between the housing 42 and the tank body 41.

In an embodiment, as shown in FIG. 35 and FIG. 36, the water tank 40 is defined with a handle slot 460. The handle slot 460 is located on a side of the water tank 40 facing away from the installation direction, and is for removal or installation of the water tank 40.

In an embodiment, the handle slot 460 is arranged at an angle with the installation direction, which not only facilitates the operation of removing the water tank 40 but also has the effect of saving effort.

In an embodiment, the bottom surface of the handle slot 460 is defined with a contoured groove 461 that conforms to the shape of fingertips, allowing fingers to inserting into the contoured groove 461 to remove or install the water tank 40, thereby enhancing the comfort of the user's fingertips when they are inserted into the contoured groove 461.

In an embodiment, the angle formed by the handle slot 460 with the installation direction is in a range of 70° to 110°. The installation direction includes an inclined installation direction after the water tank 40 is installed on the inclined bottom surface.

In an embodiment, as shown in FIG. 24, the side of the chassis body 10 where the water tank 40 is installed is provided with a thumb support portion 170, so that when the water tank 40 is taken out, the thumb can press on the thumb support portion 170 to provide support against the chassis body 10, allowing other fingers inserting into the handle slot 460 to apply a force to pull out the water tank 40.

In an embodiment, a cushion pad 462 is provided below the opening of the handle slot 460 to improve the comfort of the fingers inserting into the contoured groove 461. After the water tank 40 is removed, the water tank 40 may be hold by the handle slot 460, and the fingertips and knuckles are respectively abutted against the bottom and the area below the opening of the handle slot 460. The cushion pad 462 arranged below the opening can enhance the comfort of the knuckles in contact with the area below the opening. For example, the cushion pad 462 may be a silicone pad.

In an embodiment, as shown in FIG. 37 and FIG. 38, the water tank 40 is defined with an avoidance space 470 for avoiding other functional components or structures on the chassis body 10.

In an embodiment, the left or right side of the water tank 40 is defined with a water inlet 480 for allowing water to be added into the water tank 40. In the case that the avoidance space 470 is provided, during the process of adding water into the water tank 40, if the avoidance space 470 is located above, one side of the avoidance space 470 may fail to exhaust air, resulting in the inability to add water. Since the water tank 40 has a larger dimension in the horizontal direction than in other directions, in the case that the water inlet 480 of the water tank 40 is located on one side, it is necessary to rotate the water tank 40 by a certain angle during water filling, so that the avoidance space 470 is located on the side, preventing the issue of being unable to add water smoothly to the space on the side of the avoidance space 470.

In an embodiment, the water tank 40 is defined with a water inlet 480 for allowing water to be added into the water tank 40. The water inlet 480 is set at an angle with the front-rear direction or the left-right direction. Setting the water inlet 480 of water tank 40 at an angle can guide users to tilt the water tank 40 before adding water. Since the water tank 40 has a larger horizontal dimension, rotating it 90 degrees to a fully vertical position for refilling would result in a higher filling height. However, tilting the water tank 40 at a certain angle before adding water not only reduces the space size on one side of the avoidance space 470 that cannot be filled smoothly but also ensures a lower height, making it suitable for more household environments.

In an embodiment, the water tank 40 is provided with a communication pipe 481. Two ends of the communication pipe 481 are communicated to the water storage spaces on two sides of the avoidance space. This prevents the formation of a sealed space during water filling, avoiding the issue that water cannot be added due to the inability to exhaust air from the spaces on the two sides of the avoidance space.

In an embodiment, a passage is defined inside the water tank 40 to communicate with the water storage spaces on the two sides of the avoidance space 470. This prevents the formation of a sealed space during water filling, avoiding the issue that water cannot be added due to the inability to exhaust air from the spaces on the two sides of the avoidance space.

In an embodiment, at least one of the water storage spaces on the two sides of the avoidance space 470 is communicated with the outside, to prevent the two water storage spaces from forming a sealed space during water filling, which could prevent water from being added due to the inability to exhaust air.

In an embodiment, the communication pipe 481 is inclined in the height direction to utilize the gravity of the liquid to expel droplets from the channel, preventing the droplets from blocking the channel.

In an embodiment, the water storage spaces on the two sides of the avoidance space 470 are communicated with the outside by a waterproof breathable membrane 482, to prevent the two water storage spaces from forming a sealed space during water filling, which could prevent water from being added due to the inability to exhaust air.

Due to the capacity limitation on the water tank 40 or the demand for water supply, it is necessary to clearly understand the water level in the water tank 40. The applicant, through creative efforts, finds that in the related art, the detection of the water level in the water tank 40 is not accurate. To improve the accuracy of detection of the water level in the water tank 40 of the cleaning device, the embodiments of the present disclosure provide a cleaning device. Referring to FIG. 39 to FIG. 43, the cleaning device includes a chassis body 10 and a body mechanism 20. The chassis body 10 is further provided with a water level detection apparatus 70. The side wall of the water tank 40 is defined with an anti-vibration cavity 71. The top and the bottom of the anti-vibration cavity 71 are both communicated with the water tank 40, and the anti-vibration cavity 71 is arranged corresponding to the water level detection apparatus 70. Compared to the case where the water tank 40 is installed on the body mechanism 20, it is more difficult to observe the water level in the water tank 40 in the case that the water tank 40 is installed on the chassis body 10, so the water level detection apparatus is used for detecting the water level in the water tank 40. The anti-vibration cavity 71 is used to reduce vibrations, so as to prevent the water tank 40 from shaking violently due to the reciprocating motion of the chassis body 10, which could affect the accuracy of the water level detection, thereby improving the accuracy of the water level measurement. Additionally, setting the anti-vibration cavity 71 on the side wall facilitates the sensor arranged outside the water tank 40 to directly detect the water level at the side wall of the water tank 40.

In an embodiment, the dimension of the anti-vibration cavity 71 in the front-rear direction of the water tank 40 is smaller than the dimension of the anti-vibration cavity 71 in the left-right direction of the water tank 40. Since the primary movement direction of the chassis body 10 is the front-rear direction, the primary oscillation direction of the water inside the water tank 40 is also the front-rear direction. Reducing the dimension of the anti-vibration cavity 71 in the front-rear direction can mitigate the impact of water flow in the primary oscillation direction on the water level, thereby improving the accuracy of water level detection inside the water tank 40.

In an embodiment, the side wall of the anti-vibration cavity 71 is defined with a flow-through hole 71a. The flow-through hole 71a is located on the left or right side of the anti-vibration cavity 71 to reduce the direct impact of water flow in the primary oscillation direction on the flow-through hole 71a, further ensuring the stability of the water level inside the anti-vibration cavity 71.

In an embodiment, the water level detection apparatus 70 includes an optoelectronic detector 74 provided on the chassis body 10. An optical guiding structure 72 made of a transparent material is provided in the anti-vibration cavity 71, so that the light emitted from the optoelectronic detector 74 into the anti-vibration cavity 71 can be reflected by the optical guiding structure 72 and received by the optoelectronic detector 74.

Illustratively, the optoelectronic detector 74 includes a light source 74a for emitting a light beam and a light receiver 74b for receiving a reflected light beam. The optical guiding structure 72 has both reflective and transmissive properties, and it can reflect the light emitted by the light source 74a to the light receiver 74b.

In an embodiment, as shown in FIG. 41, the optical guiding structure 72 includes a third surface 72c that allows light emitted by the detector to enter or allows light to exit to the detector, and a first surface 72a and a second surface 72b that cooperate with a medium to reflect the light. The first surface 72a, the second surface 72b, and the third surface 72c are interconnected to form a triangular prism structure 72d. The third surface 72c is in contact with the side wall of the water tank 40; or the optical guiding structure 72 is integrally formed with the water tank 40, and the side wall of the water tank 40 defines the third surface 72c. The triangular prism structure 72d is arranged inside the anti-vibration cavity 71. When the water level in the anti-vibration cavity 71 oscillates in the front-rear direction, the triangular prism structure 72d can guide the water level to separate towards the sides or converge towards the center, to convert part of the oscillation in the front-rear direction to the left-right direction, further reducing the oscillation inside the anti-vibration cavity 71.

In an embodiment, the chassis body 10 and/or the water tank 40 is provided with a water level detection apparatus 70. Referring to FIG. 41, the water level detection apparatus 70 includes an optoelectronic detector 74 arranged on the chassis body 10, and the optoelectronic detector 74 includes a light source 74a for emitting a light beam and a light receiver 74b for receiving a reflected light beam. An optical guiding structure 72 made of transparent material is provided on the tank wall of the water tank 40, and is capable of reflecting the light emitted from the light source 74a to the light receiver 74b. In the embodiment, a detection groove 73 is defined in the outer side wall of the water tank 40. The detection groove 73 is located between a light incident path and a light exit path of the optoelectronic detection, to reduce the deformation of the tank wall during the molding process and the scattering of the light path, thereby improving the accuracy of water level detection.

In an embodiment, both the water tank 40 and the optical guiding structure 72 are made of transparent materials and are integrally formed. The detection groove 73 opened in the water tank 40 helps to reduce the wall thickness at the optical guiding structure 72, which reduces deformation during the processing and forming process, thereby improving the accuracy of the optical guiding structure 72 and further enhancing the accuracy of water level detection.

In an embodiment, as shown in FIG. 22, the water tank 40 includes a first housing 46 and a second housing 47 connected to each other in the height direction of the water tank 40. The detection groove 73 includes a first groove defined in the first housing 46 and a second groove defined in the second housing 47. The first groove and the second groove are interrupted at the joint between the first housing 46 and the second housing 47, allowing the water tank 40 to be made as separate pieces, which facilitates processing and reduces costs.

In an embodiment, the water level detection apparatus 70 is an optoelectronic water level detector. A plurality of water level detection apparatuses 70 may be provided, and each water level detection apparatus 70 is located at a different height of the water tank 40. Since the optoelectronic detector 74 can only perform single-point detection, it is necessary to set a plurality of water level detection points along the water level height. The water level is determined by detecting whether there is water at the water level detection points.

In an embodiment, at least some adjacent optoelectronic detectors 74 among the plurality of optoelectronic detectors 74 have different detection times. Since the optoelectronic detector 74 needs to emit detection light during detection, and the detection signal is related to the light intensity received by the optoelectronic detector 74, in the case that the optoelectronic detectors 74 are closely arranged, the scattered light from adjacent optoelectronic detectors 74 may easily cause interference, thereby reducing the detection sensitivity of the optoelectronic detector 74, and even causing false alarms. Therefore, adjacent optoelectronic detectors 74 operate at different times, that is, one optoelectronic detector 74 is working while an adjacent one stop working, to prevent crosstalk between the adjacent optoelectronic detectors 74 temporally, thereby improving the accuracy of detection.

In an embodiment, at least some adjacent optoelectronic detectors 74 among the plurality of optoelectronic detectors 74 are staggered in a horizontal direction, to prevent optical crosstalk between the adjacent optoelectronic detectors 74 spatially.

In an embodiment, the temporal and spatial manners may be used simultaneously to prevent optical crosstalk.

In an embodiment, the plurality of optoelectronic detectors 74 are divided into groups, and different groups operate under different control modes, including performing real-time detection on multiple optoelectronic detectors 74, and varying the detection times for multiple optoelectronic detectors 74. This allows for differentiated settings based on actual conditions.

In an embodiment, as shown in FIG. 42, a height difference of multiple water level detection apparatuses 70 located at the lower part of the water tank 40 is less than a height difference of multiple water level detection apparatuses 70 located at the upper part of the water tank 40, which allows for more accurate detection of the water level at the lower part of the water tank 40.

Further, in the embodiment, the water level detection apparatus 70 is the optoelectronic detector 74. Since the optoelectronic detectors 74 at the lower part of the water tank 40 are more densely arranged, it is necessary to pay attention to the crosstalk between adjacent optoelectronic detectors 74. The multiple photoelectric detectors 74 located at the lower part of the water tank 40 are set to have different detection times and/or are horizontally staggered, so as to improve the accuracy of detection.

In an embodiment, to ensure that adjacent optoelectronic detectors 74 do not interfere with each other, the optoelectronic detectors 74 with a distance therebetween less than a first preset distance are set to have different detection times and/or are staggered in the horizontal direction. In the case that the distance between adjacent optoelectronic detectors 74 is greater than or equal to the first preset distance, which is 1 cm to 2 cm, it indicates that the adjacent optoelectronic detectors 74 will not produce optical crosstalk and can perform real-time detection.

In an embodiment, as shown in FIG. 43, the cleaning device includes a power supply 75, a first power supply circuit 77 for supplying power to one group of optoelectronic detectors 74, and a second power supply circuit 78 for supplying power to another group of optoelectronic detectors 74. The first power supply circuit 77 and the second power supply circuit 78 are connected to the power supply 75. The first power supply circuit 77 is capable of supplying real-time power to the optoelectronic detection apparatuses that perform real-time detection. The second power supply circuit 78 is capable of supplying power intermittently to the optoelectronic detection apparatuses 74 that have different detection times, thereby achieving the purpose of varying detection times.

In an embodiment, the second power supply circuit 78 is provided with a switch 76, and the switch 76 is capable of switching among the optoelectronic detection apparatuses with different detection times. When one optoelectronic detector 74 is working, the switch 76 is connected to this optoelectronic detector 74 and disconnected from an adjacent optoelectronic detector 74.

In an embodiment, the switch 76 is an automatic switch 76 with a switching frequency ranged from 5 Hz to 20 Hz.

In the description of the present disclosure, it should be noted that, unless otherwise specified and limited, the terms “installation” and “connection” should be understood in a broad sense, for example, may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected by an intermediate medium, and may be an internal communication of two components or an interaction between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure may be understood according to specific situations.

In the present disclosure, unless otherwise specified and defined, a first feature being “on” or “under” a second feature may include that the first feature and the second feature are in direct contact with each other, and may also include that the first feature and the second feature are not in direct contact with each other but are in contact with each other by another feature between them. Moreover, a first feature being “on” or “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature is horizontally higher than the second feature. A first feature being “below” or “under” a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, specific example components and arrangements are described above. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

In the description of the present disclosure, the description of reference terms such as “an embodiment”, “some embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples” means that a particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present disclosure. In present disclosure, schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A cleaning device, comprising: a chassis body, the chassis body being provided with a water tank installation position; anda water tank detachably installed in the water tank installation position, the water tank comprising:a water tank body installed in the water tank installation position along a non-vertical direction;wherein a bottom of the water tank body is provided with a first inclined surface, and a height of the first inclined surface gradually decreases along an installation direction of the water tank.

2. The cleaning device of claim 1, wherein, a top of the water tank body is provided with a second inclined surface, the second inclined surface is in sliding contact with a top of the water tank installation position during installation of the water tank, and the second inclined surface is matched with the first inclined surface.

3. The cleaning device of claim 1, wherein, the water tank body is installed into the water tank installation position from a rear side of the cleaning device toward a front side of the cleaning device, and an installation direction of the water tank body is from rear to front.

4. The cleaning device of claim 1, wherein, the water tank body comprises an installation surface, and the installation surface is a surface of the water tank body for docking with the water tank installation position along the installation direction; andthe water tank body is defined with an interface passage, the interface passage is defined in the installation surface of the water tank, the interface passage is arranged obliquely, and an inclination direction of the interface passage is the same as an inclination direction of the first inclined surface.

5. The cleaning device of claim 1, wherein, the water tank body is further provided with a first guiding side wall capable of limiting the water tank body in a direction perpendicular to the installation direction during installation of the water tank body.

6. The cleaning device of claim 5, wherein, an extension direction of the first guiding side wall is the same as the installation direction, or an extension direction of the first guiding side wall forms an angle of less than 10° with the installation direction;and/or,the first guiding side wall is one of two first guiding side walls; the two first guiding side walls are arranged to face each other, and a distance between the two first guiding side walls gradually decreases along the installation direction; or, the two first guiding side walls are arranged to face away from each other, and a distance between the two first guiding side walls gradually increases along the installation direction.

7. The cleaning device of claim 5, wherein, each side of two sides of the water tank body is provided with the first guiding side wall; or, the first guiding side wall is one of at least two first guiding side walls.

8. The cleaning device of claim 1, wherein, the chassis body is provided with a third inclined surface, the third inclined surface is located at a bottom of the water tank installation position, the third inclined surface is matched with the first inclined surface, and the first inclined surface slides along the third inclined surface during installation of the water tank body.

9. The cleaning device of claim 8, wherein, a flat surface is connected to an end of the first inclined surface facing away from the installation direction of the water tank and an end of the second inclined surface facing away from the installation direction of the water tank.

10. The cleaning device of claim 8, wherein, the chassis body is provided with a fourth inclined surface, the fourth inclined surface is located at a top of the water tank installation position, and the fourth inclined surface is matched with the third inclined surface.

11. The cleaning device of claim 8, wherein, part of a bottom of the water tank installation position is protruded upward to form the third inclined surface.

12. The cleaning device of claim 8, wherein, the first inclined surface is one of two first inclined surfaces, and the third inclined surface is one of two third inclined surfaces;one of the two first inclined surfaces and one of the two third inclined surfaces are arranged on a left side of the water tank installation position, and the other one of the two first inclined surfaces and the other one of the two third inclined surfaces are arranged on a right side of the water tank installation position.

13. The cleaning device of claim 8, wherein, a roller installation space is defined under the third inclined surface for installation of a first roller body.

14. The cleaning device of claim 5, wherein, the water tank installation position is further provided with a second guiding side wall capable of limiting the water tank body in a left-right direction during installation of the water tank body, and the second guiding side wall is arranged corresponding to the first guiding side wall;and/or,each side of two sides of the water tank body is provided with the first guiding side wall; or, the first guiding side wall is one of at least two first guiding side walls.