AUTOMATIC CLEANING DEVICE

TECHNICAL FIELD

The present application relates to the technical field of cleaning robots and, in particular, to an automatic cleaning device.

BACKGROUND

Cleaning robots, such as sweeping robots, mopping robots, sweeping and mopping integrated robots, and the like, are becoming more and more popular in modern life, which brings convenience to family life. With the popularity of the cleaning robots, the functions and structures of the cleaning robots have become more and more complex, and accordingly, their production costs are getting higher and higher.

In the related art, some cleaning robots are additionally provided with structures or functions such as automatic charging, automatic dust removal, lifting, and vibration. In this regard, although cleaning robots are more intelligent, the complexity of various parts of the cleaning robots is increased, causing a lot of inconvenience for subsequent maintenance. In addition, the dust box removal structure is either too complicated or too inconvenient.

BRIEF SUMMARY

According to a specific embodiment of the present application, the present application provides an automatic cleaning device. The automatic cleaning device includes:

- a mobile platform configured to automatically move on an operating surface and including an accommodating chamber; and
- a cleaning module including a dust box, the dust box being detachably assembled in the accommodating chamber, the dust box including an accommodating portion, a top cover disposed above the accommodating portion, and a locking mechanism; the locking mechanism including a first locking mechanism substantially disposed at a central axis of the top cover;
- where the first locking mechanism includes at least a first downward-grip recess and a first stop member, the first stop member being disposed within the first downward-grip recess, and the first stop member being capable of being elastically moved relative to the first downward-grip recess under an action of an external force; and the locking mechanism further includes a second locking mechanism.

In some embodiments, the top cover includes a first part covering the accommodating portion and a second part protruding from the accommodating portion and extending outward, and the first downward-grip recess is concavely formed downward along an edge of the first part of the top cover.

In some embodiments, the first stop member includes a first elastic arm, a first upward-grip portion and a first snapping-fit portion, where the first elastic arm extends upward from a bottom of the first downward-grip recess, the first upward-grip portion is disposed at an upward extending end of the first elastic arm, and the first snapping-fit portion extends laterally along the first elastic arm.

In some embodiments, the first snapping-fit portion is a pair of sheet-like structures symmetrically arranged along two sides of the first elastic arm, and a width of the sheet-like structure is decreasing from a root to a free end.

In some embodiments, a first locking member is provided on an inner wall of the accommodating chamber at a position substantially corresponding to the first stop member, and the first stop member cooperates with the first locking member to achieve stopping.

In some embodiments, the first locking member is a pair of through holes, and the free end of the sheet-like structure is inserted into the through hole to achieve stopping.

In some embodiments, a first recess is provided on the inner wall of the accommodating chamber at a position substantially corresponding to the first downward-grip recess, and the pair of through holes are provided on two sides of the first recess.

In some embodiments, the second locking mechanism includes a second downward-grip recess and a second stop member, the second downward-grip recess is concavely formed inward along an edge of the second part of the top cover, the second stop member is disposed below the second downward-grip recess, and the second stop member is capable of being elastically moved relative to the second downward-grip recess under an action of an external force.

In some embodiments, the second stop member includes a second upward-grip portion, two second elastic arms symmetrically arranged and two second snapping-fit portions symmetrically arranged, where the second elastic arm is disposed below the second downward-grip recess and first extends along an opening direction of the second downward-grip recess and then extends along an edge direction of the top cover and an edge direction of the second downward-grip recess, the second upward-grip portion is arranged above the two second elastic arms, and the second snapping-fit portion is arranged on the second elastic arm.

In some embodiments, each of the second snapping-fit portions includes a recessed groove extending inwardly from an end of the second snapping-fit portion.

In some embodiments, a second locking member is provided on an inner wall of the accommodating chamber at a position substantially corresponding to the second stop member, and the second stop member cooperates with the second locking member to achieve stopping.

In some embodiments, the second locking member is a pair of protrusions, and the second snapping-fit portions extend to bottoms of the protrusions to achieve stopping.

In some embodiments, a second recess is provided on the inner wall of the accommodating chamber at a position substantially corresponding to the second downward-grip recess, and the pair of protrusions are provided on two sides of the second recess.

In some embodiments, a support structure is disposed below the second part of the top cover and configured to support the second part of the top cover, and the second stop member is disposed on the support structure.

In some embodiments, the second locking mechanism includes at least one first magnetic attraction module, and the first magnetic attraction module is arranged below the second part of the top cover.

In some embodiments, a support structure is arranged below the second part of the top cover, and the first magnetic attraction module is arranged between the second part of the top cover and the support structure.

In some embodiments, the accommodating chamber includes at least one second magnetic attraction module configured to cooperate with the first magnetic attraction module for attraction and then stopping.

The present application provides an automatic cleaning device which includes a dust box stop structure. By arranging the stop structure symmetrically in the front and rear directions of the dust box top cover, when a single hand applies force to the two elastic structures in front and rear of the dust box, the dust box can be unlocked, and the dust box will not be tilted due to the dust box being ejected from one side. At the same time, due to the simple elastic structure, elastic unlocking can be achieved by only using elastic materials to form the elastic arms, avoiding the risk of complex unlocking devices being easily damaged.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. Understandably, the accompanying drawings in the following description show merely some embodiments of the present application, and a person of ordinary skill in the art may derive other drawings from these accompanying drawings without creative efforts. In the accompanying drawings:

FIG. 1 is an oblique view of an automatic cleaning device according to some embodiments of the present application.

FIG. 2 is a schematic diagram of a bottom structure of an automatic cleaning device according to some embodiments of the present application.

FIG. 3A is an oblique view of an accommodating chamber of an automatic cleaning device according to some embodiments of the present application.

FIG. 3B is a schematic diagram of a structure of an air outlet of an accommodating chamber of an automatic cleaning device according to some embodiments of the present application.

FIG. 4 is a three-dimensional view of a dust box according to some embodiments of the present application.

FIG. 5 is an oblique view of a dust box according to some embodiments of the present application.

FIGS. 6A-6H are schematic diagrams of structure layouts of a top cover according to some embodiments of the present application.

FIG. 7 is an enlarged schematic diagram of a first stop member according to some embodiments of the present application.

FIG. 8 is an enlarged schematic diagram of a first locking member according to some embodiments of the present application.

FIG. 9A is an enlarged schematic diagram of a second stop member according to some embodiments of the present application.

FIG. 9B is a schematic diagram of an overall structure of a second stop member according to some embodiments of the present application.

FIG. 9C is an enlarged schematic diagram of a second upward-grip portion according to some embodiments of the present application.

FIG. 10 is an enlarged schematic diagram of a second locking member according to some embodiments of the present application.

FIG. 11 is a three-dimensional structural diagram of a dust box filter from an outside perspective according to some embodiments of the present application.

FIG. 12 is a three-dimensional structural diagram of a dust box filter from an inner side perspective according to some embodiments of the present application.

FIG. 13A is a structural diagram of an inner side of a dust box filter from a front perspective according to some embodiments of the present application.

FIG. 13B is a three-dimensional structural diagram of a dust box filter from an inner side perspective according to some embodiments of the present application.

FIG. 14 is a schematic diagram of an assembly structure of a dust box and a filter according to some embodiments of the present application.

FIG. 15 is an assembly structure of a dust box and a filter and an enlarged schematic diagram according to some embodiments of the present application.

DETAILED DESCRIPTION

For clearer descriptions of the purposes, technical solutions and advantages in the present application, the present application is further described in detail hereinafter in combination with the accompanying drawings. Understandably, the described embodiments are merely some embodiments, rather than all embodiments, of the present application. Based on the embodiments of the present application, all other embodiments derived by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, but are not intended to limit the present application. The singular forms “a”, “the”, and “said” used in the embodiments and the appended claims of the present application are intended to include the plural forms as well, unless otherwise clearly specified in the context. “A plurality of” generally includes at least two.

It should be understood that the term “and/or” used herein only describes an associated relationship of associated objects, indicating three kinds of relationships. For example, A and/or B can represent that A exists alone, A and B exist concurrently, and B exists alone. In addition, the character “/” herein generally indicates that the associated objects are in an “or” relationship.

It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe certain objects, these objects should not be limited by these terms. These terms are merely used to distinguish similar objects. For example, a first object may also be referred to as a second object, and similarly, a second object may also be referred to as a first object, without departing from the scope of the embodiments of the present application.

It should also be noted that the terms “comprise”, “include”, or any other variants are intended to cover the nonexclusive containing, such that the commodities or apparatuses including a series of elements not only include those elements, but also include other unclearly listed elements, or also include the inherent elements of such commodities or apparatuses. Without more limitations, the element defined by the phrase “comprising a . . . ” does not exclude the existence of other identical elements in the commodity or apparatus that includes such an element.

Alternative embodiments of the present application will be described in detail below with reference to the accompanying drawings.

FIGS. 1 and 2 are schematic structural diagrams of an automatic cleaning device according to some embodiments. As shown in FIGS. 1 and 2, the automatic cleaning device may be a vacuum cleaning robot, a mopping/brushing robot, a window climbing robot, or the like. The automatic cleaning device may include a mobile platform 100, a perception system 120, a control system 130, a driving system 140, a cleaning module 150, an energy system 160, and a human-machine interaction system 170.

The mobile platform 100 may be configured to automatically move on an operation surface in a target direction. The operation surface may be a surface to be cleaned by the automatic cleaning device. In some embodiments, the automatic cleaning device may be a mopping robot, in which case the automatic cleaning device works on a floor, and the floor serves as the operation surface; the automatic cleaning device may also be a window cleaning robot, in which case the automatic cleaning device works on the outer glass surface of a building, and the outer glass surface serves as the operation surface; and the automatic cleaning device may also be a pipeline cleaning robot, in which case the automatic cleaning device works on the interior surface of a pipeline, and the interior surface of the pipeline serves as the operation surface. Merely for the purpose of illustration, the following description in this application is illustrated by taking the automatic cleaning device as a mopping robot as an example.

In some embodiments, the mobile platform 100 may be an autonomous mobile platform or a non-autonomous mobile platform. The autonomous mobile platform means that the mobile platform 100 itself can automatically and adaptively make operation decisions according to unexpected environmental inputs, while the non-autonomous mobile platform itself, instead of adaptively making operation decisions according to unexpected environmental inputs, can execute given programs or run according to certain logic. As such, in the case that the mobile platform 100 is the autonomous mobile platform, the target direction may be autonomously determined by the automatic cleaning device; and in the case that the mobile platform 100 is the non-autonomous mobile platform, the target direction may be set systematically or manually. The mobile platform 100 includes a forward portion 111 and a backward portion 110 when the mobile platform 100 is the autonomous mobile platform.

The perception system 120 includes a position determining apparatus 121 located above the mobile platform 100, a buffer 122 located on the forward portion 111 of the mobile platform 100, and sensing apparatuses such as a cliff sensor 123, an ultrasonic sensor (not shown in the figures), an infrared sensor (not shown in the figures), a magnetometer (not shown in the figures), an accelerometer (not shown in the figures), a gyroscope (not shown in the figures) and an odometer (not shown in the figures), which are located at the bottom of the mobile platform for providing various position information and motion state information of the automatic cleaning robot for the control system 130.

For clearer descriptions of the actions of the automatic cleaning device, the following directions are defined: the automatic cleaning device may travel on the floor by various combinations of movement relative to the following three perpendicular axes defined by the mobile platform 100: a transverse axis Y, a front-back axis X, and a central vertical axis Z. A forward driving direction along the front-back axis X is marked as “forward”, and a backward driving direction along the front-back axis X is marked as “backward”. The transversal axis Y extends substantially between a right wheel and a left wheel of the automatic cleaning device along an axis center defined by the center point of a driving wheel assembly 141. The automatic cleaning device may rotate about the axis Y. It is called “pitch up” when the forward portion of the automatic cleaning device is tilted up and the backward portion thereof is tilted down, and it is called “pitch down” when the forward portion of the automatic cleaning device is tilted down and the backward portion thereof is tilted up. In addition, the automatic cleaning device may rotate around the axis Z. In the forward direction of the automatic cleaning device, it is called “turn right” when the automatic cleaning device is tilted to the right of the axis X, and it is called “turn left” when the automatic cleaning device is tilted to the left of the axis X.

As shown in FIG. 2, the cliff sensors 123 are disposed at the bottom of the mobile platform 100 and in front and rear of the driving wheel assembly 141 and configured to prevent the automatic cleaning device from falling off when the automatic cleaning device moves back, so as to protect the automatic cleaning device against damage. The aforementioned “front” refers to the side in the same direction as the travelling direction of the automatic cleaning device, and the aforementioned “rear” refers to the side in a direction opposite to the travelling direction of the automatic cleaning device.

A specific type of the position determining apparatus 121 includes, but is not limited to, a camera and a laser distance sensor (LDS).

The various components in the perception system 120 may work independently or jointly to achieve intended functions more accurately. The surface to be cleaned is identified by the cliff sensor 123 and the ultrasonic sensor to determine the physical properties including surface materials, the degree of cleanliness, etc. of the surface to be cleaned, and may be more accurately determined in combination with the camera, and the laser distance sensor, etc.

For example, whether the surface to be cleaned is a carpet may be determined by the ultrasonic sensor, and if the ultrasonic sensor determines that the surface to be cleaned is made of a carpet material, the control system 130 controls the automatic cleaning device to conduct carpet-mode cleaning.

The buffer 122 is disposed on the forward portion 111 of the mobile platform 100. The buffer 122 detects one or more events (or objects) in a travel path of the automatic cleaning device via the perception system (for example, an infrared sensor) when the driving wheel assembly 141 propels the automatic cleaning device to walk on the floor in the process of cleaning. The automatic cleaning device may control, according to the events (or objects), such as an obstacle and a wall, detected by the buffer 122, the driving wheel assembly 141 to make the automatic cleaning device respond to the events (or objects), for example, moving away from the obstacle.

The control system 130 is disposed on a main circuit board in the mobile platform 100, and includes a computing processor, such as a central processing unit or an application processor, which communicates with non-transitory memories, such as a hard disk, a flash memory and a random access memory. The application processor is configured to receive environmental information sensed by the plurality of sensors and transmitted from the perception system 120, to draw, by using a positioning algorithm (for example, SLAM) according to obstacle information fed back by the laser distance sensor, a simultaneous map of an environment where the automatic cleaning device is located, autonomously determine the travel path according to the environmental information and the environmental map, and then control the driving system 140 to move forward, backward and/or turn according to the autonomously determined travel path. Further, the control system 130 may also determine, according to the environmental information and the environmental map, whether to activate the cleaning module 150 to perform a cleaning operation.

In some embodiments, the control system 130 may comprehensively determine a current working state (such as crossing a threshold, getting on a carpet, being at a cliff, being stuck from above or below, having a full dust box or being picked up) of the sweeping robot according to distance information and speed information fed back by the buffer 122 and the sensing apparatuses such as the cliff sensor 123, the ultrasonic sensor, the infrared sensor, the magnetometer, the accelerometer, the gyroscope and the odometer, and may also give specific strategies for next actions with respect to different situations, making the work of the automatic cleaning device more in line with the requirements of an owner, and achieving better user experience. Furthermore, the control system may plan the most efficient and reasonable cleaning path and cleaning mode based on the information of the simultaneous map drawn by SLAM, which greatly improves the cleaning efficiency of the automatic cleaning device.

The driving system 140 may execute a driving command based on specific distance and angle information, such as x, y and θ components and thus control the automatic cleaning device to travel across the floor. As shown in FIG. 2, the driving system 140 includes a driving wheel assembly 141 and may control a left wheel and a right wheel simultaneously. In order to control the movement of the automatic cleaning device more accurately, the driving system 140 includes a left driving wheel assembly and a right driving wheel assembly that are symmetrically arranged along a transverse axis defined by the mobile platform 100.

For more stable movement on the floor or higher movement ability of the automatic cleaning device, the automatic cleaning device may include one or more steering components 142, which may be driven wheels or driving wheels and may structurally include but is not limited to universal wheels. The steering component 142 may be located in front of the driving wheel assembly 141.

The energy system 160 includes a rechargeable battery, such as a nickel-hydrogen battery and a lithium battery. The rechargeable battery may be connected to a charging control circuit, a battery pack charging temperature detecting circuit, and a battery undervoltage monitoring circuit which are then connected to a single-chip microcomputer control circuit. A host of the automatic cleaning device is connected to a charging pile by a charging electrode disposed on a side of or below the body of the automatic cleaning device for charging.

The human-machine interaction system 170 includes buttons on a panel of the host for a user to select functions, and may further include a display screen and/or an indicator light and/or a speaker, as well as a mobile phone client program. The display, the indicator light and the speaker show the user the current state or function options of the automatic cleaning device. For a route navigation type cleaning device, a mobile phone client may show the user a map of the environment where the device is located, as well as the location of the device, thereby providing the user with richer and more user-friendly function items.

As shown in FIG. 2, the cleaning module 150 may include a dry cleaning module 151.

The dry cleaning module 151 includes a roller brush, a dust box, a fan, and an air outlet. The roller brush with certain interference with the floor sweeps up debris on the floor and rolls up it to the front of a dust suction inlet between the roller brush and the dust box, and then the debris is sucked into the dust box by a gas with a suction force, which is generated by the fan and passes through the dust box. The dust removal capacity of the sweeping robot can be characterized by the dust pickup (DPU) efficiency of the debris, which is affected by the structure and the material of the roller brush, the utilization rate of air in an air passage formed by the dust suction inlet, the dust box, the fan, the air outlet and connecting parts among the dust suction inlet, the dust box, the fan and the air outlet, and the type and the power of the fan, and thus is a complex problem of system design. The improvement of dust removal capacity is of greater significance to the energy-limited automatic cleaning device than an ordinary plug-in dust catcher. This is because the improvement of the dust removal capacity directly and effectively reduces the demand for energy, i.e., an original cleaning device capable of cleaning 80 square meters of the floor with one charge may be improved to clean 180 square meters or more with one charge. In addition, the service life of a battery with a reduced number of charging times may be greatly prolonged, such that the frequency of replacing the battery by the user may be reduced. More intuitively and importantly, the improvement of the dust removal capacity is the most obvious and important user experience as the user can directly draw a conclusion about whether the thorough sweeping/mopping is achieved. The dry cleaning module may further include a side brush 152 provided with a rotating shaft angled with respect to the floor, for moving the debris into a roller brush area of the cleaning module 150.

In some embodiments, the automatic cleaning device may further include a wet cleaning module configured to clean at least part of the operation surface in a wet cleaning manner. The wet cleaning module includes a water tank, a cleaning head, a driving unit, and the like. Water from the water tank flows along a waterway to the cleaning head, and the cleaning head cleans at least part of the operation surface under the driving of the driving unit.

The layout and frame structure of the shell of the existing automatic cleaning device is complex, the number of parts is large, the assembly time is long, the process is complicated, and the cost is high. For example, a top flip cover and a flip mechanism are added to the automatic cleaning device, and an upper shell decorative part is designed on the top flip cover. Although the upper shell decorative part and the upper flip cover can cover up the ugliness and protect the internal components, they make the structure of the whole machine complex and the cost high, and affect the design space of components such as the dust box under the top flip cover.

To this end, an embodiment of the present application provides an automatic cleaning device without a flip cover, which simplifies the unnecessary components of the automatic cleaning device while increasing the design space of the dust box and its accommodating chamber. The same structure produces the same technical effect, and some technical effects are not repeated here. The present application provides an automatic cleaning device, as shown in FIGS. 3-5, which includes a mobile platform 100 configured to move automatically on an operating surface. The mobile platform 100 includes an accommodating chamber 200. In some embodiments, the accommodating chamber 200 is arranged at a slightly rear side in a forward direction of the automatic cleaning device. The accommodating chamber 200 includes a first chamber 201 and a second chamber 202. The automatic cleaning device further includes a dry cleaning module which includes a dust box 300. The dust box 300 is detachably assembled in the accommodating chamber 200. The first chamber 201 and the second chamber 202 are arranged in sequence front and back in the forward direction of the automatic cleaning device. The depth of the first chamber 201 is greater than the depth of the second chamber 202. The first chamber 201 and the second chamber 202 are arranged in sequence front and back in the forward direction of the automatic cleaning device, so that the part with larger volume and weight in the whole dust box may be arranged closer to the middle of the automatic cleaning device, resulting in that the dust box is more stably arranged in the accommodating chamber 200, and the center of gravity of the whole cleaning device is more stable. It is more stable and not easy to overturn during the process of traveling, turning, and overcoming obstacles. At the same time, it is convenient to make the accommodating portion of the dust box and the dust box top cover into an integrated structure, so that the dust box top cover may be used as a part of the top surface of the mobile platform, and is flush with other parts of the top surface of the mobile platform, omitting the flip cover structure of the traditional cleaning device. At the same time, it is convenient to directly align the dust suction port disposed at the approximately central position of the bottom of the cleaning device with the dust box, so that dust enters the dust box directly from the dust suction port, reducing the distance of dust entering the machine, and avoiding dust pollution to the inside of the machine. The depth of the first chamber 201 is greater than that of the second chamber 202, so that the dust box and the dust box top cover can be accommodated in a separate structure, which is convenient for the integrated design of the dust box top cover. A dust suction port 203 is provided at the bottom of a front side wall of the first chamber 201. An air outlet 208 is provided at a rear side wall where the first chamber 201 and the second chamber 202 are connected. The air outlet 208 has a grille structure. The space below the second chamber 202 accommodates a fan, which may be carried by a fan bracket. In some embodiments, the air outlet 208 constitutes a part of the fan bracket. An exhaust port 204 is provided on a rear side wall of the mobile platform 100. Under the action of the suction force of the fan, dust enters the dust box 300 via the dust suction port 203, and the airflow is filtered by the dust box filter and discharged from the exhaust port 204.

In some embodiments, the dust box 300 includes an accommodating portion 301 and a top cover 302 disposed above the accommodating portion 301. The top cover 302 is fixedly connected to the accommodating portion 301. The fixed connection method includes but is not limited to bonding, welding, integral molding, bolt connection, snap connection, etc. The accommodating portion 301 is used to receive the refuse sucked from the dust suction port 203. The appearance of the accommodating portion 301 is substantially matched with the first chamber 201.

A roller brush with a certain interference with the floor sweeps up the refuse on the floor. The refuse is rolled to the front of the dust suction port 203 between the roller brush and the dust box 300 under the action of a negative pressure airflow generated by the fan, and then is sucked into the dust box 300 by a suction airflow generated by the fan and passing through the dust box 300. The refuse is isolated inside the dust box 300 by a filter 500, and the filtered air enters the fan.

In some embodiments, the accommodating portion 301 of the dust box 300 is provided with a first opening 3011 disposed at a front side of the dust box 300. The first opening 3011 is aligned with the dust suction port 203. The accommodating portion 301 is provided with a second opening 3012 disposed at a rear side of the dust box. The filter 500 is arranged at the second opening 3012. The second opening 3012 is docked with the air outlet 208. The filter 500 is detachably connected to the box body of the dust box 300, which is convenient for the removal and cleaning of the filter. The front side refers to the side along the forward direction of the automatic cleaning device on the X direction after the dust box 300 is assembled in the accommodating chamber 200. The rear side refers to the side opposite to the forward direction of the automatic cleaning device on the X direction.

In some embodiments, the top cover 302 includes a first part 3021 covering the accommodating portion 301 and a second part 3022 extending outward beyond the accommodating portion 301. When the dust box 300 is assembled in the accommodating chamber 200, the accommodating portion 301 and the first part 3021 of the top cover 302 are accommodated in the first chamber 201, and the second part 3022 of the top cover 302 is accommodated in the second chamber 202. The top cover 302 is substantially matched with the top part of the first chamber 201 and the structure of the second chamber 202, so that the dust box 300 may be stably installed in the accommodating chamber 200, avoiding the shaking of the dust box due to the bumps during the movement of the automatic cleaning device. At the same time, the dust box top cover can just cover the accommodating portion and the position of the fan, so that the upper surface of the dust box top cover is substantially level with the upper surface of the mobile platform, ensuring the flatness of the outer surface of the automatic cleaning device, and the overall coordination of the appearance is better. It also provides more space options for the design of various components under the top cover including the accommodating portion, which facilitates the arrangement of the positions of different components. The volume of the dust box may be selectively increased, and the specific size may be arranged as needed without affecting the overall opening size of the accommodating chamber, thereby reducing the cost for creating a new mold.

In some embodiments, the first part 3021 of the top cover 302 includes an edge portion 30211 that protrudes from the edge contour of the accommodating portion and extends outward.

The accommodating chamber 200 includes a step portion 205 extending around the top edge of the accommodating chamber. The step portion 205 is configured to accommodate at least a portion of the edge portion 30211 and at least a portion of the outer edge of the second part 3022, so that the upper surface of the top cover is substantially coplanar with the upper surface of the mobile platform. The step portion 205 of the accommodating chamber 200 that extends around the top edge of the accommodating chamber can completely accommodate the edge of the top cover 302, so that the top cover 302 can be basically tightly accommodated in the accommodating chamber 200, which can prevent foreign objects from falling directly into the edge gap of the dust box, further preventing the dust box from getting stuck, and at the same time ensuring the aesthetic appearance of the top cover as the upper surface of the automatic cleaning device.

In some embodiments, a support structure 3023 is provided below the second part 3022 of the top cover 302, and configured to support the second part 3022 of the top cover. In some embodiments, the support structure 3023 is integrally formed with at least a portion of the accommodating portion 301 to enhance the support force of the support structure 3023 on the second part 3022 of the top cover 302, effectively preventing damage to the second part 3022. The support structure 3023 may include, but is not limited to, an arc-shaped structure and a linear structure. For example, the support structure 3023 is two symmetrically arranged arc-shaped structures that substantially match the outer edge contour of the second part 3022 of the top cover 302.

In some embodiments, the lower surface of the second chamber 202 includes a groove 2021. The groove 2021 substantially matches the contour of the support structure 3023, and is configured such that when the second part 3022 of the top cover is accommodated in the second chamber 202, the support structure 3023 is accommodated in the groove 2021, so that the upper surface of the top cover 302 is basically horizontal.

In some embodiments, the top cover 302 is symmetrically arranged along the central axis of the forward direction of the automatic cleaning device. In some embodiments, the top cover has at least one or a combination of the following shapes: D-shaped, rectangular, square, circular, elliptical, triangular, quadrilateral, pentagon, hexagon, heptagon or octagon, as shown in FIGS. 6A-6H. The symmetrical arrangement can make the appearance of the machine more beautiful without the cover, and it is more convenient for the installation and removal of the dust box.

In some embodiments, as shown in FIG. 8, the first chamber 201 includes a first locking member 701. As shown in FIG. 10, the second chamber 202 includes a second locking member 72. As shown in FIGS. 5 and 7, the first part 3021 of the top cover includes a first stop member 601. As shown in FIG. 9A, the second part 3022 of the top cover includes a second stop member 602. The first stop member 601 cooperates with the first locking member 701 to achieve stopping. The second stop member 602 cooperates with the second locking member 72 to achieve stopping.

The above-mentioned embodiments relate to a dust box of an automatic cleaning device and its mounting structure. An accommodating chamber is provided on a rear side of a forward direction of the automatic cleaning device. The accommodating chamber includes a first chamber and a second chamber. The depth of the first chamber is greater than the depth of the second chamber. After the dust box is assembled in the accommodating chamber, the upper surface of the dust box top cover is substantially coplanar with the upper surface of the moving platform, thereby simplifying the structure of the top surface of the automatic cleaning device, reducing the production cost, and increasing the design space of the accommodating chamber.

The existing automatic cleaning devices are provided with a pop-up dust box and a non-pop-up dust box, a pop-up dust box top flip cover and a flip mechanism. When taking and placing the dust box, the top flip cover needs to be opened, and then the dust box is ejected by pressing the dust box. This implementation requires a complex dust box ejection mechanism, which includes a plurality of parts such as a spring. Due to repeated use of the spring, the elasticity decreases, making it impossible for the dust box to pop up smoothly. In addition, many other parts and components can easily cause the dust box to not pop up normally, affecting use. Non-pop-up dust boxes often use a complex locking structure, in which the spring assembly is prone to aging and damage, and the pressing component is not comfortable enough to match the finger during operation, resulting in a poor overall user experience.

To this end, an embodiment of the present application provides an automatic cleaning device without a flip cover, which simplifies unnecessary components of the automatic cleaning device and facilitates the smooth taking and placing of the dust box. Compared with the above embodiment, this embodiment briefly describes some structural features. The same structure has the same technical effect, and some technical effects are not repeated here. As shown in FIGS. 1-5 and 7, an automatic cleaning device includes a moving platform 100 configured to automatically move on an operating surface and including an accommodating chamber 200 arranged on a rear side in a forward direction; and a cleaning module including a dust box 300, the dust box 300 being detachably assembled in the accommodating chamber 200, and the dust box including an accommodating portion 301, a top cover 302 disposed above the accommodating portion, and a locking mechanism. The locking mechanism includes a first locking mechanism 610 substantially disposed at a central axis of the top cover. The first locking mechanism 610 includes at least a first downward-grip recess 603 and a first stop member 601. The first stop member 601 is disposed in the first downward-grip recess 603. The first stop member 601 can elastically move relative to the first downward-grip recess 603 under the action of an external force. The first downward-grip recess 603 is formed downwardly along an edge of a first part of the top cover. The first downward-grip recess 603 provides a sufficient depth in the Z direction so that the height of the first stop member 601 is lower than the surface of the top cover. The first downward-grip recess 603 provides a sufficient elastic space in the X direction so that when the first stop member 601 elastically moves inward, there is sufficient activity space.

In some embodiments, the first stop member 601 includes a first elastic arm 6011, a first upward-grip portion 6012 and a first snapping-fit portion 6013. The first elastic arm 6011 extends upward from the bottom of the first downward-grip recess 603. The first upward-grip portion 6012 is disposed at an end of the first elastic arm 6011 extending upward. The first snapping-fit portion 6013 extends laterally along the first elastic arm 6011. The first elastic arm 6011 is generally in the shape of a Chinese character “ custom-character ” to reduce materials and increase elasticity, and this shape and structure are not limited. The first upward-grip portion 6012 is laterally arranged above the first elastic arm 6011. The first upward-grip portion 6012 includes a bottom surface that protrudes generally outward and a downward-grip surface that extends upward along the bottom surface. The downward-grip surface extends to a position that is generally flush with the top cover. The downward-grip surface may be an arc structure, that is, its projection on the horizontal plane is an arc. The downward-grip surface is convenient for receiving manual operation, and is more in line with the force relationship of ergonomics with the finger shape. In some embodiments, the first snapping-fit portion 6013 is a pair of sheet-like structures symmetrically arranged along two sides of the first elastic arm 6011. The width of the sheet-like structure decreases from a root to a free end, so as to facilitate smooth insertion into the first locking member 701. The first elastic arm 6011 may be made of common elastic materials, such as plastic or organic elastic materials.

In some embodiments, as shown in FIG. 8, FIG. 8 is an enlarged schematic diagram of the first locking member 701 at position A in FIG. 3A. The first locking member 701 is disposed at a position substantially corresponding to the first stop member 601 on an inner wall of the accommodating chamber 200. The first stop member 601 cooperates with the first locking member 701 to achieve stopping. In some embodiments, the first locking member 701 is a pair of through holes. The free end of the sheet-like structure is inserted into the through hole to achieve stopping.

In some embodiments, a first recess 206 is provided on the inner wall of the accommodating chamber at a position substantially corresponding to the first downward-grip recess 603. The pair of through holes are provided on two sides of the first recess 206. When the first stop member 601 is inserted into the through hole, stopping is achieved. When a finger is inserted into the first recess 206 to apply force to pull the first stop member 601 out of the through hole, unlocking is achieved. The coordinated cooperation between the first recess 206 and the first downward-grip recess 603 makes the insertion operation of the finger easier and more convenient.

In some embodiments, as shown in FIG. 9A, the locking mechanism further includes a second locking mechanism 620. The second locking mechanism 620 includes a second downward-grip recess 605 and a second stop member 602. The second downward-grip recess 605 forms a notch inwardly along the approximate midline position of the second part 3022 of the top cover, such as an arc-shaped or square notch, to facilitate the insertion of the finger(s) for the snapping-fit operation. The second stop member 602 is disposed on the lower side of the second downward-grip recess 605. The second downward-grip recess 605 provides sufficient space for the finger(s) to control the second stop member 602. The second stop member 602 elastically moves inward under action of an external force. The second stop member 602 includes a second elastic arm 6021, a second upward-grip portion 6022 and a second snapping-fit portion 6023. The second elastic arm 6021 is disposed below the second downward-grip recess 605. The second elastic arm 6021 includes two symmetrical parts. Each of the second elastic arms 6021 first extends along an opening direction of the second downward-grip recess 605, then extends along an edge direction of the top cover, and then extends along an edge direction of the second downward-grip recess 605. The opening direction of the second downward-grip recess 605 is shown in FIG. 9A, which is the A direction from the center of the top cover to the outside, and in this embodiment is also the rear direction of the dust box top cover. The two parts of the second elastic arm 6021 are symmetrically connected substantially as two structures in the shape of a Chinese character “ custom-character ”. The second upward-grip portion 6022 connects the two parts of the second elastic arms 6021 symmetrically arranged. The second upward-grip portion 6022 is arranged above the two second elastic arms, as shown in FIGS. 9B and 9C. FIG. 9C is an enlarged view of the second upward-grip portion at position C in FIG. 9B. The bottom of the second upward-grip portion 6022 includes a bottom surface 60221 that protrudes generally outward and an upward-grip surface 60222 that extends upward along the bottom surface. The upward-grip surface extends to a position that is generally flush with the top cover. The upward-grip surface may be an arc-shaped structure, which is convenient for receiving manual operation and for the finger(s) to apply force. In some embodiments, the second upward-grip portion 6022 is integrally formed with the symmetrically arranged second elastic arms 6021. The second snapping-fit portion 6023 is arranged on the lateral extension portion of the second elastic arm. The second snapping-fit portion 6023 is a pair of symmetrically arranged portions along two sides of the second elastic arm 6021, for example, a protrusion or a sheet-like structure extending along the A direction. In some embodiments, each of the second snapping-fit portions 6023 includes a groove extending inward from the end of the second snapping-fit portion 6023. The groove can prevent the entire second snapping-fit portion from being deformed too much after being formed and cooled, causing snapping-fit difficulties. In some embodiments, the second stop member 602 further includes a symmetrically arranged connecting member 6024. The connecting member 6024 is substantially planar. One end of the second elastic arm 6021 is connected to one side of the connecting member 6024. The other side of the connecting member 6024 is connected and fixed to the end face of the support structure. The second upward-grip portion 6022 exposes the second downward-grip recess 605 in the X direction, so that when unlocking, a finger may be inserted into the second downward-grip recess 605 and pressed on the second upward-grip portion 6022, applying force to the inside of the dust box along the X axis and driving the second snapping-fit portion 6023 to elastically contract inward, and the second snapping-fit portion 6023 pops out from the bottom of the second locking member 702 to achieve unlocking. The second elastic arm 6021 may be made of common elastic materials, such as plastic or organic elastic materials.

In some embodiments, as shown in FIG. 10, FIG. 10 is an enlarged view of the second locking member 702 shown at position B in FIG. 3B. The second locking member 702 is provided on the inner wall of the accommodating chamber 200 at a position substantially corresponding to the second stop member 602. The second stop member 602 cooperates with the second locking member 702 to achieve stopping. The second locking member 702 is a pair of protrusions. The second snapping-fit portion 6023 extends into the bottom of the second locking member 702 to achieve stopping. The protrusion may be flat, cylindrical, rectangular, etc., which is not limited, as long as it can lock the second snapping-fit portion.

In some embodiments, a second recess 207 is provided on the lower surface of the second chamber 202 at a position substantially corresponding to the second downward-grip recess 605. The pair of protrusions are provided at the same height on the rear side wall of the second chamber 202, above the second recess 207. The second recess 207 is configured to avoid and accommodate the second stop member 602 when the dust box 300 is placed in the accommodating chamber 200, so that the entire dust box may be better placed in place in the accommodating chamber 200.

In some embodiments, the top cover includes a first part covering the accommodating portion and a second part protruding from the accommodating portion and extending outward. The second downward-grip recess 605 and the second stop member 602 are disposed in the second part of the top cover. A support structure 3023 is included below the second part of the top cover, and is configured to support the second part of the top cover. The second stop member 602 is disposed on the support structure 3023. As shown in FIG. 4, the symmetrically arranged support structure 3023 form a compression space inward in the X direction. When the second elastic arm 6021 is connected to the symmetrical support structure 3023, there is enough elastic space to respond to the applied inward force.

For the dust box stop structure described in the above embodiment, a stop structure is symmetrically arranged in the front and rear directions of the dust box top cover, so that when a single hand applies force to the two elastic structures in front and back of the dust box, unlocking may be achieved, and the dust box will not be tilted due to the dust box being ejected from one side after only one side is unlocked. At the same time, due to the simple elastic structure, elastic unlocking may be achieved by only using elastic materials to form elastic arms, avoiding the risk of damage to complex unlocking devices such as springs.

In some embodiments, as shown in FIG. 4, the second locking mechanism 620 includes at least one first magnetic attraction module 604. The first magnetic attraction module 604 is disposed between the second part of the top cover and the supporting structure. As shown in FIG. 3A, the accommodating chamber includes at least one second magnetic attraction module 606, which is configured to cooperate with the first magnetic attraction module 604 for attraction and stopping. During application, the first stop member 601 and the second downward-grip recess 605 may be pushed back by hand to retract the first stop member 601 corresponding to the dust box. When the dust box is placed in the accommodating chamber and the hand is released, the first snapping-fit portion 6013 on the first stop member 601 will automatically pop out and is inserted into the first locking member 701, and the first magnetic attraction module 604 and the second magnetic attraction module 606 are attracted to each other, thereby realizing the locking of the dust box. The locking structure is simple and easy to operate, which facilitates the locking of the dust box.

In some embodiments, the second locking mechanism 620 described above may be an implementation including the second downward-grip recess 605 and the second stop member 602, or an implementation including the first magnetic attraction module 604, or an implementation including both, which is not limited.

The dust box of the existing automatic cleaning device needs to be equipped with a replaceable dust box filter. The traditional filter is generally obtained by making a hard frame using plastic or metal, placing the stacked filter element in the frame, sealing the frame and the filter element by glue peripherally, and bonding a sealing strip on the frame to seal the gap between the filter and the dust box. Therefore, the traditional dust box filter part has a complex structure, the filter installation steps are cumbersome, and it wastes labor and costs. In addition, the glue used for sealing is not economical and environmentally friendly.

To this end, an embodiment of the present application provides an automatic cleaning device. The automatic cleaning device includes: a moving platform configured to automatically move on an operating surface and including an accommodating chamber; and a cleaning module including a dust box, the dust box being detachably assembled in the accommodating chamber, the dust box including a dust box filter, the dust box filter being applied to the dust box of the automatic cleaning device, simplifying the assembly process of the dust box filter. This embodiment briefly describes some structural features compared to the above-mentioned embodiments. The same structure produces the same technical effect, and some technical effects are not repeated here. As shown in FIGS. 11-12, the dust box filter 500 includes: a soft rubber frame 501, the soft rubber frame including at least one soft rubber protrusion, which is used to seal the assembly gap with the dust box during the assembly process; and a filter element 502, which is sleeved in the soft rubber frame 501. The soft rubber frame 501 is non-detachably connected to the filter element 502. In some embodiments, the non-detachable connection process between the soft rubber frame 501 and the filter element 502 may be implemented as follows: the filter element is sleeved in the frame by using a plastic injection molding process in advance, and then the soft rubber is applied to the sleeved frame assembly to form a plurality of required sealing protrusions. Alternatively, a double-shot process may be used to first inject the hard rubber frame body, and then the filter element is mounted on the frame body, and then the soft rubber is injected to form the inner and outer sealing protrusions.

The soft rubber frame 501 may be a rectangular, square, oval, circular, polygonal or other structure, and this structure is not limited. In some embodiments, the soft rubber frame is a rectangular structure. The soft rubber frame 501 of the rectangular structure includes two first side walls 50111 and two second side walls 50113 arranged opposite to each other. The soft rubber protrusions include a first protrusion 5011 distributed on the outer peripheral surface of one of the first side walls 50111 and a second protrusion 5015 distributed on the outer peripheral surface of the other first side wall 50111. A pair of first side walls 50111 and a pair of second side walls 50113 form a frame of rectangular structure, and a filter element is sleeved inside the frame of rectangular structure, as shown in FIGS. 11 and 12.

In some embodiments, the first protrusion 5011 and the second protrusion 5015 may be continuous protrusion structures. For example, the first protrusion 5011 and the second protrusion 5015 extend continuously from one end of the outer peripheral surface of the first side wall 50111 to the other end. Since the first protrusion 5011 and the second protrusion 5015 are soft rubber structures, when the dust box filter is assembled on the dust box, the first protrusion 5011 and the second protrusion 5015 will be squeezed and directly sealed between the dust box filter 500 and the second opening 3012 of the dust box, and fully contact and seal with the inner wall of the second opening 3012 of the dust box extending substantially in the horizontal direction, replacing the step of sealing with a sealing strip after the traditional dust box filter is assembled on the dust box.

In some embodiments, as shown in FIG. 14, at least one of the first protrusion and the second protrusion is an inverted structure. The inverted structure is configured to seal the assembly gap between the soft rubber frame and the dust box while preventing the dust box filter from falling off the dust box. For example, the inverted structure is an arc structure. The arc structure is inclined to the side opposite to the assembly direction of the dust box filter. The inverted structure facilitates the dust box filter to tilt to the side opposite to the assembly direction during the dust box filter assembly process due to friction force caused as the dust box filter extends into the assembly opening of the dust box, and then be squeezed and sealed between the dust box filter and the dust box.

In some embodiments, the second side wall of the soft rubber frame further includes at least one third protrusion 5012. The third protrusion 5012 is distributed on the outer peripheral surface of at least one second side wall 50113 of the frame structure. The third protrusion 5012 may be a plurality of discrete protrusion structures. As an implementation, the third protrusion 5012 is distributed on the outer peripheral surfaces of the two second side walls 50113 of the frame structure. When the dust box filter is assembled on the dust box, the third protrusion 5012 disposed on the outer peripheral surface of one second side wall 50113 of the frame structure has a slightly longer structure, which may be extended into the recess of the dust box side wall, and plays the role of snapping-fit and preventing the dust box filter from falling off. At the same time, when assembling the dust box filter, the slightly longer third protrusion 5012 may be first extended into the recess of the dust box side wall, and then the other side of the dust box filter may be installed into the dust box after rotating about the third protrusion 5012. The third protrusion 5012 distributed on the outer peripheral surface of the other second side wall 50113 of the frame structure has a smoother structure. When the dust box filter is assembled on the dust box, the third protrusion 5012 on this side is interference-locked with the elastic structure 5013 of the dust box side wall to prevent the dust box filter from falling off. The elastic structure 5013 is generally an S structure, which has an inner concave portion for accommodating the third protrusion 5012 and an outer convex portion locked with the third protrusion 5012. The outer convex portion may be elastically moved under action of an external force and locked with the third protrusion 5012. As shown in FIG. 15, it is a top diagram of the installation structure of the dust box filter viewed from the bottom of the dust box. In some embodiments, as shown in FIGS. 13A and 13B, the soft rubber frame further includes a first rib 510, which is arranged on the outer peripheral surface of the second side wall and is configured to prevent the dust box filter from being installed too deep or too shallow into the dust box, resulting in poor assembly. During the process of installing the dust box filter into the dust box, when the dust box filter is assembled in place, the first rib 510 will abut against a pillow 5014 disposed at the corresponding position of the dust box frame, preventing the filter from extending further inward, thereby preventing the dust box filter from being installed too deep into the dust box. At the same time, if the first rib 510 does not abut against the pillow 5014 of the dust box frame during the assembly process, it is considered that the dust box filter is not assembled in place, thereby preventing the dust box filter from being installed too shallowly into the dust box, as shown in FIG. 15.

In some embodiments, as shown in FIG. 13A and FIG. 13B, the soft rubber frame further includes an anti-mistake protrusion 509, which is disposed on the outer peripheral surface of the second side wall and is configured to prevent the dust box filter from being installed upside down. A recess is disposed at the position of the dust box corresponding to the anti-mistake protrusion 509. When the dust box filter is normally installed, the anti-mistake protrusion 509 will enter the recess so that the dust box filter may be normally assembled. When the dust box filter is installed upside down, since there is no such recess on the other side of the dust box, the anti-mistake protrusion 509 will prevent the dust box filter from being assembled, thereby playing an anti-mistake effect of prompting the dust box filter to be installed upside down.

In some embodiments, as shown in FIGS. 3A and 3B, the accommodating chamber 200 includes a first chamber 201 and a second chamber 202. The first chamber 201 and the second chamber 202 are arranged in sequence front and back adjacent to each other in the forward direction of the automatic cleaning device. The depth of the first chamber 201 is greater than the depth of the second chamber 202. A dust suction port 203 is provided at the bottom of the front side wall of the first chamber 201. An air outlet 208 is provided at the rear side wall where the first chamber 201 and the second chamber 202 are connected. A fan is accommodated in the space below the second chamber 202. An exhaust port 204 is provided at the rear side wall of the mobile platform 100. Under the action of suction force of the fan, dust enters the dust box 300 from the dust suction port 203, and the airflow is discharged from the exhaust port 204 after being filtered by the dust box filter. The air outlet 208 is provided with a grille structure.

As shown in FIGS. 11 and 12, the soft rubber frame further includes: an inner sealing lip 507, which is arranged on the first end surface 50116 of the soft rubber frame 501 around the filter element 502, and is configured to achieve a sealed fit between the dust box filter and the assembly surface 30121 of the second opening 3012 of the dust box. The assembly surface 30121 of the second opening 3012 of the dust box is formed on one side of the second opening close to the inner wall of the dust box, and is a substantially planar structure, which is used to assemble the soft rubber frame after abutting against the first end surface 50116 of the soft rubber frame 501, as shown in FIG. 14; an outer sealing lip 506, which is arranged on the second end surface 50115 of the soft rubber frame 501 around the filter element 502, and is configured to seal the dust box filter and the edge of the air outlet 208 of the accommodating chamber 200. The inner sealing lip 507 and the outer sealing lip 506 are higher than the first end surface 50116 or the second end surface 50115 where they are disposed. After being assembled in place, the inner sealing lip 507 will be squeezed between the dust box filter and the assembly surface of the dust box. Since the inner sealing lip 507 is made of flexible material, the assembly surface of the dust box filter and the dust box is sealed under the action of the extrusion force. When the dust box is assembled on the automatic cleaning device, the outer sealing lip 506 of the dust box filter will be squeezed between the dust box filter and the outer side of the grille of the air outlet 208 of the accommodating chamber 200, thereby sealing the dust box filter and an assembly surface of a fan bracket. As shown in FIGS. 3A and 3B, the side wall connecting the first chamber 201 and the second chamber 202 constitutes the assembly surface of the fan bracket. The fan is arranged below the second chamber 202. The grille-type air outlet 208 is arranged on the side wall connecting the first chamber 201 and the second chamber 202. By providing the inner sealing lip 507 and the outer sealing lip 506 on the soft rubber frame 501, the inner end face of the dust box filter 500 and the assembly surface of the air outlet of the dust box, as well as the outer end face of the dust box filter 500 and the outer surface of the air outlet grille of the accommodating chamber 200 are sealed and mated, thereby omitting the cumbersome step of adding sealing strips inside and outside the traditional dust box filter to meet the air path sealing requirements. The soft rubber frame 501 serves as a carrier, and the inner sealing lip 507 and the outer sealing lip 506, which also have a certain flexibility, serve as a sealing structure, so that the contact seal is more closely matched, the fit is more complete, and the sealing effect is stronger, thereby ensuring the airtightness of the entire air path and providing a better guarantee for the dust suction and dust exhaust functions of the cleaning device that rely on negative pressure.

In some embodiments, as shown in FIGS. 11 and 12, the soft rubber frame further includes a step surface 503 extending outwardly along the second end surface 50115 of the soft rubber frame 501, so that the step surface 503 and the side wall of the soft rubber frame 501 form a step structure, which is configured to prevent the dust box filter from being installed too deep into the dust box. During the assembly process, when the dust box filter is extended into the assembly opening of the dust box, the step surface 503 will abut against the outer edge of the dust box for assembly, thereby being stuck at the outer edge of the dust box, and preventing the dust box filter from being installed too deep into the dust box, as shown in FIG. 14.

In some embodiments, as shown in FIG. 11, the soft rubber frame further includes a magnetic element mounting hole 504, which is disposed on the second end surface 50115 of the soft rubber frame 501 and is configured to accommodate a magnetic element to ensure that the dust box filter is installed in place. The magnetic element may be a magnet or other electromagnetic component. The magnetic element mounting hole 504 is used to install an inductive magnetic element. The magnetic element mounting hole 504 has a sufficient depth to ensure that the magnetic element may be installed in a fixed position on the inside of the filter. When the entire filter is installed in a fixed position, it may be detected by a Hall sensor to ensure that the filter is installed in place.

In some embodiments, as shown in FIG. 11, the soft rubber frame further includes a second rib 5041, which is arranged around the periphery of the magnetic element mounting hole and is configured to prevent liquid from entering the magnetic element mounting hole. The second rib 5041 tightly wraps the outer end of the magnetic element outside the magnetic element mounting hole 504 to prevent the magnetic element from rusting and failing. The second rib 5041 may be a soft rubber material, which further wraps the magnetic element after being squeezed.

In some embodiments, as shown in FIG. 11, the soft rubber frame further includes a downward-grip handle 505, which is arranged at a position extending outward from the step surface 503 and is configured to facilitate the removal of the dust box filter. The shape and structure of the downward-grip handle 505 are not limited and may be semicircular, square, rectangular, etc.

In some embodiments, as shown in FIG. 12, the soft rubber frame further includes a hollow structure 508, which is arranged on the first side wall and/or the second side wall of the frame and is configured to reduce the overall weight of the frame. The hollow structure 508 may be a plurality of blind holes recessed inwardly. The structure of the blind holes is not limited and may be circular, square, rectangular, irregular, etc.

For the automatic cleaning device described in the above embodiments, the dust box filter, due to the adoption of a soft rubber frame design, may be directly squeezed and assembled in the opening of the dust box during the assembly process, and at the same time cooperates with the first protrusion, the inner sealing lip and the outer sealing lip and other structures, so that the filter and the assembly surface can achieve a tight sealing effect during assembly, avoiding the manual assembly part of the traditional process of inserting the filter and then gluing and bonding, simplifying the process, reducing the number of assembly parts, and reducing the cost at the same time, and there is no glue bonding, no odor, and it is more environmentally friendly.

Finally, it should be noted that the various embodiments in the specification are described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same or similar parts between the various embodiments may be referred to each other.

The above embodiments are only used to illustrate, instead of limiting, the technical solutions of the present disclosure. Although the present disclosure is described in detail with reference to the foregoing embodiments, it may be understood by those of ordinary skill in the art that they can still make modifications to the technical solutions disclosed in the above various embodiments or make equivalent replacements on part of technical features, and these modifications or replacements do not depart the nature of the corresponding technical solution from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

AUTOMATIC CLEANING DEVICE

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