Patent Application
20210268552
The present invention relates to the field of cleaning technology, and in particular, to a cleaning device assembly.
A cleaning device has advantages such as high working efficiency and high safety and is adequate for cleaning of large-area objects such as vehicles, doors and windows, and floor-to-ceiling glass. The cleaning device is portable and conveniently usable and also reduces the workload of manual cleaning, bringing great convenience to people's life.
An existing cleaning device integrates a pump, a motor, a battery, and a spray gun structure for convenient use. To prolong the operating time of the cleaning device, the capacity of a power supply battery pack is increased, for example, dual battery packs are used for power supply. It is convenient to use such an integrated cleaning device. However, a user usually holds the cleaning device for operation. Therefore, it is somewhat physically demanding for an operator to hold the cleaning device, resulting in poor human-machine interaction.
Another common commercially available floor-type cleaning device includes a main unit for accommodating a functional part, a spray gun for spraying a fluid pressurized by the functional part, and a water pipe for connecting the spray gun to the main unit. The cleaning device has a lightweight spray gun that is easier to hold and can provide more adequate dirt cleaning capability. However, the main unit of the cleaning device is large and heavy, and it requires much effort to carry the cleaning device to perform cleaning in different working scenarios.
Based on this, to resolve the foregoing technical problems, it is necessary to provide a cleaning device in which a spray gun is not heavy and a power assembly that is provided separately from the spray gun is light in weight but not large in size, to balance the weight of the spray gun with that of the power assembly and improve the dirt cleaning capability, to meet a cleaning requirement of a user and provide adequate human-machine interaction.
To achieve the above objectives, the present invention adopts the following technical solution: A cleaning device assembly is provided, including: a spray gun assembly, where the spray gun assembly includes a spray gun housing, a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for a fluid to be sprayed are provided in the spray gun housing, and the spray gun housing further includes a handle for holding; a power assembly, where the power assembly and the spray gun assembly are separately disposed, the power assembly includes a pump and a motor configured to drive the pump to work, and the power assembly further includes a fluid inlet for a fluid to enter and a fluid outlet for a pressurized fluid to be sprayed; a power supply assembly, supplying energy to the motor; and a connecting path, connected between the spray gun assembly and the power assembly, where the connecting path includes a liquid outlet pipeline connected between the spray gun liquid inlet and the fluid outlet, where the power supply assembly is independent of the power assembly, and the power supply assembly is disposed on the spray gun assembly.
In one of the implementations, the connecting path further includes a power supply line for electrically connecting the power supply assembly and the motor, and both the power supply line and the liquid outlet pipeline are connected between the spray gun housing and the power assembly.
In one of the implementations, the spray gun assembly includes a first electrical connection port, the power assembly is provided with a second electrical connection port, and the power supply line is connected between the first electrical connection port and the second electrical connection port, to transmit electric energy connected to the spray gun assembly to the power assembly; and the liquid outlet pipeline is communicatively connected between the fluid outlet and the spray gun liquid inlet.
In one of the implementations, the liquid outlet pipeline and the fluid outlet are connected in a sealed manner, and the liquid outlet pipeline and the spray gun liquid inlet are connected in a sealed manner.
In one of the implementations, the power supply line and the liquid outlet pipeline are configured as a water and electricity integrated pipe, so that both the power supply line and the liquid outlet pipeline are connected between the fluid outlet and the spray gun liquid inlet, to implement both water supply and power supply.
In one of the implementations, the power supply assembly is a rechargeable battery pack, the battery pack is detachably assembled on the spray gun housing, and the spray gun assembly and the battery pack form a spray gun.
In one of the implementations, the battery pack is detachably mounted at one end, away from the spray gun liquid outlet, of the handle.
In one of the implementations, it is defined that there is a holding support point when a user holds the handle, a center of gravity G1 of the spray gun assembly is located on a front side of the holding support point, a center of gravity G2 of the spray gun is located on a rear side of the holding support point, and an axial distance L1 between the center of gravity G1 of the spray gun assembly and the holding support point is greater than an axial distance L2 between the center of gravity G2 of the spray gun and the holding support point.
In one of the implementations, the spray gun assembly includes a spray bar for spraying a fluid, the spray bar is detachably connected to the spray gun housing, there are two battery packs, a nominal output voltage of each battery pack is between 18 V and 42.4 V, and a capacity of the each battery pack is between 2 Ah and 8 Ah, so that a product of a weight of the spray gun and the axial distance L2 is less than a product of a weight of the spray gun assembly and the axial distance L1.
In one of the implementations, the spray gun assembly includes a spray bar for spraying a fluid, the spray bar is detachably connected to the spray gun housing, there is one battery pack, a nominal output voltage of the battery pack is between 18 V and 80 V, and a capacity of the battery pack is between 2 Ah and 12 Ah, so that a product of a weight of the spray gun and the axial distance L2 is less than a product of a weight of the spray gun assembly and the axial distance L1.
In one of the implementations, a weight of the each battery pack is set between 300 g and 1600 g, and a ratio of the weight of the spray gun to the weight of the spray gun assembly is between 2 and 3, so that a ratio of the axial distance L2 to the axial distance L1 is less than ⅓.
In one of the implementations, the spray gun housing further includes a main portion disposed at an angle from the handle, an extending direction of the main portion is basically consistent with a spraying direction of the fluid, the main portion matches the handle to form an enclosed space, and in a longitudinal direction, the battery pack is located in the enclosed space.
In one of the implementations, a ratio of a weight of the power assembly to a total weight of the spray gun and the power assembly is not greater than 50%.
In one of the implementations, the motor includes a motor shaft for driving the pump to pressurize the fluid, and in a direction perpendicular to an extending direction of the motor shaft, a maximum cross-sectional area of the power assembly is not greater than 35000 mm2.
In one of the implementations, the power assembly further includes a transmission mechanism disposed between the motor and the pump, the transmission mechanism includes a speed reduction mechanism for reducing a rotational speed of the motor and transmitting the reduced rotational speed to the pump, and the motor, the transmission mechanism and the pump are sequentially arranged in an extending direction of a motor shaft.
In one of the implementations, the motor includes a motor accommodating body that circumferentially surrounds at least a part of a periphery of the motor, the power assembly includes a main housing surrounding a periphery of the power assembly, a cooling channel is formed between the main housing and the motor accommodating body, and the cooling channel is in fluid communication with the fluid inlet.
To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device is provided, including a spray gun assembly, where the spray gun assembly includes a spray gun housing, a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for a fluid to be sprayed are provided in the spray gun housing, and the spray gun housing further includes a handle for holding; a power assembly, where the power assembly and the spray gun assembly are separately disposed, the power assembly includes a pump and a motor connected to the pump and configured to drive the pump to work, the power assembly further includes a fluid inlet for a fluid to enter and a fluid outlet for a fluid to be sprayed, and the fluid is pressurized inside the pump and is then discharged from the fluid outlet; a battery pack mounting portion, configured to allow a battery pack to be detachably connected; and a connecting path, connected between the spray gun assembly and the power assembly, where the connecting path includes a liquid outlet pipeline connected between the spray gun liquid inlet and the fluid outlet; and the battery pack mounting portion is disposed on the spray gun housing, so that the battery pack, the motor disposed on the power assembly, and the pump are distributed.
In one of the implementations, the spray gun assembly and the battery pack form a spray gun, and a ratio of a weight of the power assembly to a total weight of the spray gun and the power assembly is not greater than 50%.
In one of the implementations, the connecting path further includes a power supply line for electrically connecting the battery pack and the motor, and both the power supply line and the liquid outlet pipeline are connected between the spray gun housing and the power assembly.
In one of the implementations, the spray gun assembly includes a first electrical connection port, the power assembly is provided with a second electrical connection port, and the power supply line is connected between the first electrical connection port and the second electrical connection port, to transmit electric energy connected to the spray gun assembly to the power assembly; and
the liquid outlet pipeline is communicatively connected between the fluid outlet and the spray gun liquid inlet.
In one of the implementations, the power supply line and the liquid outlet pipeline are configured as a water and electricity integrated pipe, so that both the power supply line and the liquid outlet pipeline are connected between the fluid outlet and the spray gun liquid inlet, to implement both water supply and power supply.
The present invention further provides a cleaning device assembly that does not need to be carried by a user during use, can move freely in a plurality of working scenarios, and is conveniently usable.
To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device assembly is provided, including: a spray gun assembly, including a spray gun housing, where a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for a fluid to be sprayed are provided in the spray gun housing; a battery pack, attached to the spray gun housing; and a power assembly, disposed separately from the spray gun assembly, where the power assembly includes a main housing, a functional part accommodated in the main housing, a fluid inlet for drawing a fluid, and a fluid outlet for discharging the drawn fluid, and the functional part includes a pump for pressurizing the fluid and a motor configured to drive the pump to work; and the cleaning device assembly further includes a connecting path disposed between the spray gun assembly and the power assembly, and the connecting path is at least capable of transmitting a fluid discharged by the fluid outlet to the spray gun liquid inlet; and the main housing is provided with a joint connected to the connecting path and a support surface that is pulled by the joint and is movable on the ground.
In one of the implementations, the main housing includes a whole body portion surrounding at least a part of an outer side of the functional part and a transition section mated with the connecting path, and the transition section narrows from the whole body portion to the connecting path.
In one of the implementations, the connecting path has an axial line, and a maximum distance between the axial line of the connecting path and an outermost edge of an upper end face of the transition section is not greater than five times an outer diameter of the connecting path.
In one of the implementations, a ratio of a cross-sectional area of the connecting path in a radial direction to a cross-sectional area of a maximum profile of an upper end face of the transition section in a radial direction is between 1:1 and 1:70.
In one of the implementations, a surface that is orthogonal to an extending direction of a motor shaft is defined as an orthogonal surface, and a maximum radial distance between a projection profile of the outermost edge of the upper end face of the transition section on the orthogonal surface and a projection profile of the connecting path on the orthogonal surface is not greater than 55 mm.
In one of the implementations, the motor includes a motor shaft, a surface that is orthogonal to an extending direction of the motor shaft is defined as an orthogonal surface, and an angle between an outermost profile line of the transition section and the orthogonal surface is greater than or equal to 30 degrees and less than 90 degrees.
In one of the implementations, a connection part between the whole body portion and the transition section is in a curved transition connection.
In one of the implementations, the transition section includes a neck portion extending in a vertical direction and a shoulder portion connected between the neck portion and the whole body portion, the fluid outlet is provided at a free end of the neck portion, and an outer wall surface of the shoulder portion is curved.
In one of the implementations, when the power assembly is horizontally placed on the ground, both the fluid inlet and the fluid outlet are suspended and move on the ground by using the whole body portion as a support.
In one of the implementations, the fluid inlet and the fluid outlet are provided facing away from each other at two ends in an axial direction.
In one of the implementations, an axial line of the fluid inlet is parallel to or basically consistent with an axial line of the fluid outlet.
In one of the implementations, a center of gravity of the power assembly is located on an extension line of an axial line X1 of the connecting path or a distance offset to left or to right from the axial line X1 is within four times an outer diameter of the connecting path.
In one of the implementations, the whole body portion is further provided with a movement structure, the movement structure includes at least two convex ribs protruding outward, the convex rib extends by a preset length in a vertical direction, and the power assembly is movable by using the convex rib as a sliding rail.
In one of the implementations, the battery pack is detachably disposed on the spray gun housing, and the battery pack and the functional part are distributed.
In one of the implementations, the spray gun assembly and the battery pack form a spray gun, and a ratio of a weight of the power assembly to a total weight of the spray gun and the power assembly is not greater than 50%.
In one of the implementations, the spray gun assembly and the battery pack form a spray gun, there are two battery packs, a nominal output voltage of each battery pack is between 18 V and 42.4 V, and a capacity of the each battery pack is between 2 Ah and 8 Ah, so that a weight of the spray gun is between 2 kg and 4.5 kg, and a weight of the power assembly is not greater than the weight of the spray gun.
In one of the implementations, the spray gun assembly and the battery pack form a spray gun, there is one battery pack, a nominal output voltage of the battery pack is between 18 V and 80 V, and a capacity of the battery pack is between 2 Ah and 12 Ah, so that a weight of the spray gun is between 2 kg and 4.5 kg, and a weight of the power assembly is not greater than the weight of the spray gun.
In one of the implementations, the power assembly further includes a transmission mechanism disposed between the motor and the pump, the transmission mechanism includes a speed reduction mechanism for reducing a rotational speed of the motor and transmitting the reduced rotational speed to the pump, and the motor, the transmission mechanism and the pump are sequentially arranged in an extending direction of a motor shaft.
In one of the implementations, in a direction perpendicular to an extending direction of the motor shaft, a maximum cross-sectional area of the power assembly is not greater than 35000 mm2.
In one of the implementations, the cleaning device assembly further includes a support structure for supporting the power assembly that is placed vertically, and the support structure is located at a lower end of the whole body portion in an axial direction and surrounds a periphery of the fluid inlet.
In one of the implementations, when the power assembly is vertically supported on the ground, a gap is provided between a bottommost end of the fluid inlet and the ground.
In one of the implementations, the connecting path includes a liquid outlet pipeline connected between the fluid outlet and the spray gun liquid inlet and a power supply line for electrically connecting the battery pack and the motor, the liquid outlet pipeline is capable of transmitting a fluid pressurized by the pump to the spray gun assembly, and both the power supply line and the liquid outlet pipeline are connected between the spray gun housing and the power assembly.
In one of the implementations, the cleaning device assembly further includes a liquid inlet path mated with the fluid inlet, to introduce an external fluid into the power assembly, and the liquid inlet path, the power assembly and the liquid outlet pipeline form a connecting member connected to the spray gun assembly.
To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device assembly is provided, including: a spray gun assembly, including a spray gun housing, where a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for the fluid entering from the spray gun liquid inlet to be sprayed are provided in the spray gun housing; a power supply assembly, supplying energy; a power assembly, disposed separately from the spray gun assembly, where the power assembly includes a fluid inlet for a fluid to enter and a fluid outlet for a fluid to be sprayed, the power assembly further includes a main housing and a functional part accommodated in the main housing, and the functional part includes a pump for pressurizing the fluid and a motor configured to drive the pump to work; and a connecting path, provided between the spray gun assembly and the power assembly, where the connecting path is at least capable of transmitting the fluid discharged by the fluid outlet to the spray gun liquid inlet, where the main housing is provided with a joint that is connected to the connecting path and is capable of pulling the power assembly to move, the main housing extends in three orthogonal spatial directions (x, y, z), that is, in a direction of a height axis of the main housing, a direction of a width axis of the main housing, and a direction of a depth axis of the main housing, the main housing has a height, a width, and a depth, the height is greater than the width, the height is greater than the depth, and a pulling direction of the joint is consistent with an extending direction of the height axis.
In one of the implementations, when the power assembly is horizontally placed on the ground, as observed from above, a center of gravity of the power assembly is located on an extension line of an axial line X1 of the connecting path or a distance offset to left or to right from the axial line X1 is within four times an outer diameter of the connecting path.
In one of the implementations, the main housing includes a whole body portion surrounding at least a part of an outer side of the functional part and a transition section mated with the connecting path, and the transition section narrows from the whole body portion to the connecting path.
In one of the implementations, the connecting path has an axial line, and a maximum distance between the axial line of the connecting path and an outermost edge of an upper end face of the transition section is not greater than five times an outer diameter of the connecting path.
In one of the implementations, a ratio of a cross-sectional area of the connecting path in a radial direction to a cross-sectional area of a maximum profile of an upper end face of the transition section in a radial direction is between 1:1 and 1:70.
In one of the implementations, a surface that is orthogonal to an extending direction of a motor shaft is defined as an orthogonal surface, and a maximum radial distance between a projection profile of the outermost edge of the upper end face of the transition section on the orthogonal surface and a projection profile of the connecting path on the orthogonal surface is not greater than 55 mm.
In one of the implementations, the motor includes a motor shaft, a surface that is orthogonal to an extending direction of the motor shaft is defined as an orthogonal surface, and an angle between an outermost profile line of the transition section and the orthogonal surface is greater than or equal to 30 degrees and less than 90 degrees.
In one of the implementations, the transition section includes a neck portion extending in a vertical direction and a shoulder portion connected between the neck portion and the whole body portion, the fluid outlet is provided at a free end of the neck portion, and the shoulder portion narrows from the whole body portion to the neck portion.
In one of the implementations, the power supply assembly is a battery pack, the battery pack is detachably disposed on the spray gun housing, and the battery pack and the functional part are distributed.
In one of the implementations, the spray gun assembly and the battery pack form a spray gun, and a ratio of a weight of the power assembly to a total weight of the spray gun and the power assembly is not greater than 50%.
To achieve the above objectives, the present invention further adopts the following technical solution: a cleaning device assembly is provided, including: a spray gun assembly, including a spray gun housing, where a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for the fluid entering from the spray gun liquid inlet to be sprayed are provided in the spray gun housing; a connecting member, configured to transmit an external fluid to the spray gun liquid inlet, where an end of the connecting member is attached to the spray gun assembly; and a power supply assembly, supplying energy, where the connecting member includes a fluid pressurization path for pressurizing a drawn fluid and a connecting path at least capable of transmitting the pressurized fluid to the spray gun assembly, the fluid pressurization path includes a fluid inlet for a fluid to be drawn and a fluid outlet for a fluid to be sprayed, and the fluid pressurization path is configured as a power assembly for providing a power source, to pressurize the fluid entering from the fluid inlet; and
a maximum cross-sectional area of the connecting member in a direction perpendicular to an extending direction of a length of the connecting path is not greater than 35,000 mm2.
In one of the implementations, a ratio of a maximum cross-sectional area of the fluid pressurization path in a direction perpendicular to the extending direction of the length of the connecting path to a maximum cross-sectional area of the connecting path in a direction perpendicular to the extending direction of the length of the connecting path is not greater than 445.
In one of the implementations, the connecting member further includes a liquid inlet path mated with the fluid inlet, and the liquid inlet path may be configured as a liquid inlet pipe for directly drawing an external water source or a container for providing a water source.
In one of the implementations, the liquid inlet path and the fluid pressurization path are detachably connected, and the fluid pressurization path and the connecting path are fixedly connected or detachably connected.
In one of the implementations, a maximum cross-sectional area of the connecting member is formed on the fluid pressurization path in a direction perpendicular to an extending direction of a length of the connecting path, the fluid pressurization path includes a main housing, a pump accommodated in the main housing, and a motor configured to drive the pump to work, the power supply assembly is a rechargeable battery pack, the battery pack is detachably assembled on the spray gun housing, and the battery pack and the functional part are distributed.
In one of the implementations, the connecting path includes a liquid outlet pipeline connected between the fluid outlet and the spray gun liquid inlet and a power supply line for electrically connecting the battery pack and the motor, the liquid outlet pipeline transmits a pressurized fluid to the spray gun assembly, and both the power supply line and the liquid outlet pipeline are connected between the spray gun housing and the power assembly.
The present invention further provides a cleaning device assembly with a plurality of working states.
To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device assembly is provided, including: a spray gun assembly, including a spray gun housing, where a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for a fluid to be sprayed are provided in the spray gun housing, and the spray gun housing further includes a handle for holding; a power assembly, where the power assembly and the spray gun assembly are separately disposed, the power assembly includes a main housing, a pump disposed in the main housing, and a motor, and the power assembly further includes a fluid inlet for a fluid to enter and a fluid outlet for a fluid to be sprayed; a connecting path, connected between the spray gun assembly and the power assembly, where the connecting path includes a liquid outlet pipeline connected between the spray gun liquid inlet and the fluid outlet; and a battery pack, supplying energy to the motor; and the cleaning device assembly has a first working state and a second working state, in the first working state, the fluid inlet is directly used as a suction port for a fluid; and in the second working state, the fluid inlet is connected to an external water source by a liquid inlet path, and an opening of the liquid inlet path is used as a suction port for a fluid.
In one of the implementations, the liquid inlet path is configured as a garden hose.
In one of the implementations, the first working state includes at least a floating mode in which the fluid outlet is exposed from an external water source.
In one of the implementations, the cleaning device assembly further includes a float structure for driving the power assembly to float on a water surface, and the float structure is detachably connected to the main housing.
In one of the implementations, in the first working state, the float structure surrounds a periphery of the main housing or the float structure is disposed at a joint between the main housing and the connecting path.
In one of the implementations, the float structure is of a two-half type, including a first half housing and a second half housing that are capable of being closed, and the first half housing and the second half housing are connected in a locking manner.
In one of the implementations, an inner cavity of the float structure is a hollow body, the hollow body includes a lower hollow body close to the fluid inlet and an upper hollow body close to the fluid outlet, and a volume of the lower hollow body is less than a volume of the upper hollow body.
In one of the implementations, the main housing drives the power assembly to be in the floating mode by its own buoyancy.
In one of the implementations, the battery pack is independent of the power assembly, and the battery pack is connected to the spray gun assembly.
In one of the implementations, a ratio of a weight of the power assembly to a total weight of the power assembly and the battery pack is not greater than 50%.
In one of the implementations, the connecting path further includes a power supply line for electrically connecting the battery pack and the motor, and both the power supply line and the liquid outlet pipeline are connected between the spray gun housing and the power assembly.
To achieve the above objectives, the present invention further adopts the following technical solution: a cleaning device assembly is provided, including: a spray gun assembly, including a spray gun housing, where a spray gun liquid inlet for a fluid to enter and a spray gun liquid outlet for the fluid entering from the spray gun liquid inlet to be sprayed are provided in the spray gun housing; a connecting member, configured to transmit an external fluid to the spray gun liquid inlet, where an end of the connecting member is attached to the spray gun assembly; and a battery pack, supplying energy, where the battery pack is attached to the spray gun housing; and the connecting member includes a fluid pressurization path for pressurizing a drawn fluid and a connecting path at least capable of transmitting the pressurized fluid to the spray gun assembly, the fluid pressurization path includes a main housing capable of directly being placed in an external water source, and the main housing includes a fluid inlet for a fluid to be drawn and a fluid outlet in communication with the fluid inlet.
In one of the implementations, the fluid pressurization path is configured as a power assembly capable of outputting a power source, and the power assembly includes a pump for pressurizing a fluid and a motor configured to drive the pump.
The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
It should be noted that when a component is “disposed” on another component, the component may be directly on the other component or an intervening component may be present. When one component is “disposed” on another component, the component may be directly disposed on the other component or an intervening component may be present. When one component is “fixed” to another component, the component may be directly fixed on the other component or an intervening component may be present.
Unless otherwise defined, meanings of all technical and scientific terms used in this specification are the same as that usually understood by a person skilled in the technical field to which the present disclosure belongs. In this specification, terms used in the specification of the present disclosure are merely intended to describe objectives of the specific embodiments, but are not intended to limit the present disclosure. The term “or/and” used in this specification includes any or all combinations of one or more listed items.
Referring to
The cleaning device assembly 100 includes a spray gun assembly 10, a power supply assembly, and a connecting member 300.
Referring to
Further, the spray gun housing 11 includes a handle 113 for holding, a main portion 114 disposed at an angle from the handle 113, a spray gun liquid inlet 111 for a fluid to enter, and a spray gun liquid outlet 112 for a fluid to be sprayed. The spray gun liquid outlet 112 is connected to the spray bar 12, so that a fluid entering the spray gun housing 11 is sprayed through the spray bar 12 to the outside. An extending direction of the main portion 114 is basically consistent with a spraying direction of the fluid. The main portion 114 and the handle 113 match each other to form an enclosed space. In this implementation, a fluid that flows through the cleaning device assembly 100 and is used for cleaning an external target object may be water. It may be understood that, in another implementation, the cleaning device assembly 100 may further adopt other types of fluids such as a car shampoo and a cleanser, provided that the fluid is capable of cleaning the external object.
In the present invention, for ease of understanding, referring to
In this implementation, the power supply assembly may adopt a rechargeable battery pack 20 as a power supply for supplying power. Herein, the battery pack 20 may be a lithium battery pack, a storage battery or the like.
Referring to
As shown in
As shown in
Further, as shown in
In this implementation, as shown in
As shown in
Since the power assembly 60 is easily affected by an obstacle in a moving process, the power assembly is stuck and cannot move. When the connecting path 30 pulls the power assembly 60 to move, the power assembly 60 is suddenly stuck by an obstacle. On one hand, the reliability of a joint between the connecting path 30 and the power assembly 60 is affected. On the other hand, because the connecting path 30 generally has a specific length and the power assembly 60 is away from the user, the user needs to put down the spray gun assembly 10 and returns to a position in which the power assembly is stuck, to manually separate the power assembly 60 from the obstacle or carry the power assembly 60 across the obstacle, affecting human-machine interaction. The power assembly 60 moves forward depending on the pulling of the connecting path 30, it needs to be first ensured that an upper end of the power assembly 60 is not stuck to ensure that the power assembly 60 can smoothly pass the obstacle. As shown in
Because a radial cross-sectional area of the connecting path 30 is small, an end of the connecting path 30 is connected to the upper end of the power assembly 60. As shown in the schematic diagram of
In this implementation, referring to a specific structural diagram in
More specifically, referring to
It should be noted that the upper end face may be a plane or a curved surface. For a design in which the upper end face is an inclined surface, the cross-sectional area of the upper end face of the transition section in the radial direction should be understood as a circumferential cross-sectional area of a lowest end edge of the inclined surface, and the cross-sectional area should be that of a plane that is orthogonal to an extending direction of the axial line X1.
When the power assembly 60 moves, the transition section located on an upper end of the power assembly 60 first contacts the obstacle. Specifically, as shown in
Referring to
Preferably, an outer wall surface of the shoulder portion 6103 is of a curved structure. Especially for a cylindrical obstacle, the curved structure is allowed to contact a curved surface of the cylindrical obstacle under the pulling of the connecting path 30, so that the power assembly 60 (the fluid pressurization path) bypasses the obstacle and moves forward. The curved structure may be directly formed by the outer wall surface of the shoulder portion 6103 or may be detachably mounted from the shoulder portion 6103. Specifically, the shoulder portion 6103 is provided with an integral smooth curved surface or may be designed as a plurality of curved convex ribs protruding outward in a radial direction. The curved convex rib may be integrally formed with the shoulder portion 6103 or may be processed subsequently and fixedly disposed on a periphery of the shoulder portion 6103. In addition, the curved structure is not limited, there may be another circular structure.
In an implementation, the curved structure on the shoulder portion 6103 is an inward round chamfer in which a diameter gradually decreases toward an inner side of the power assembly 60. Certainly, in other implementations, the curved structure of the shoulder portion 6103 may also be an outward round chamfer in which a diameter gradually increases in a radial direction. That is, the transition section 610 and the whole body portion 612 of the power assembly 60 are in a curved transition connection. In this way, a diagonally upward force or a force that is basically parallel to the ground is applied to the power assembly 60 through the connecting path 30, so that the power assembly 60 can smoothly slide across a surface of an obstacle by using the curved structure to move freely.
The shoulder portion 6103 may be another structure. Specifically, the shoulder portion 6103 may be a structure detachably connected to an upper end of the whole body portion 612. In addition, in this implementation, as shown in
In addition to the convex obstacle (the chair leg or the step), there is also a concave obstacle (a pot hole) in the ground. As the connecting path 30 pulls the power assembly 60 to move, a length of an outer wall surface of the whole body portion 612 in an axial direction is generally greater than a maximum diameter of the pot hole. Therefore, it is easy to slide over the pot holes. In this implementation, a structure of the power assembly 60 is elongated. Specifically, in a direction perpendicular to an extending direction of the motor shaft, a maximum cross-sectional area of the power assembly 60 is not greater than 35,000 mm2. Preferably, in the direction perpendicular to the extending direction of the motor shaft, the maximum cross-sectional area of the power assembly 60 is between 7,000 mm2 and 10,000 mm2. A ratio of a maximum cross-sectional area of the fluid pressurization path (the power assembly 60) in a direction perpendicular to the extending direction of a length of the connecting path 30 to a maximum cross-sectional area of the connecting path 30 in a direction perpendicular to the extending direction of the length of the connecting path is not greater than 445. Preferably, the ratio of the maximum cross-sectional area of the fluid pressurization path (the power assembly 60) in the direction perpendicular to the extending direction of the length of the connecting path 30 to the maximum cross-sectional area of the connecting path 30 in the direction perpendicular to the extending direction of the length of the connecting path is not greater than (90 to 127):1. More specifically, outermost profile lines of projections of the fluid pressurization path and the connecting path 30 on a plane perpendicular to the extending direction of the length of the connecting path (or the extending direction of the motor shaft) are generally circular, so that a user holds the spray gun assembly 10, to pull the connecting member 300 to freely move on the ground. Preferably, at least the whole body portion 612 of the power assembly 60 is generally elongated cylindrical (a cylinder). It should be noted that the circle herein should be understood as that the entire outer profile line may not be perfectly smooth, but may have some inwardly indented curves or some outwardly convex protrusions.
As shown in
In this implementation, in consideration of a height of a center of gravity of the power assembly 60 relative to the support surface, the power assembly 60 moves on the ground by using the circumferential support surface 616 of the main housing 61 as a direct support, thereby reducing the difficulty of the power assembly 60 in moving along the ground under the action of the connecting path 30. However, when the power assembly 60 is towed on the ground, the ground is prone to friction or collision with the fluid inlet 614 and the fluid outlet 615, affecting the reliability of a structure of the power assembly 60. Therefore, in this implementation, when the power assembly 60 moves, the fluid outlet 615 and the fluid inlet 614 are in a suspended state. Specifically, as shown in
Further, as the power assembly 60 moves on the ground, a larger contact area indicates a larger friction force between the power assembly 60 and the ground. Therefore, a pulling force applied to the spray gun assembly 10 by the user is larger, and wear of the ground is increased.
Preferably, the whole body portion 612 further includes a movement structure, and the power assembly 60 is capable of being directly supported by the movement structure and moving under the pulling force of the connecting path 30.
In one of the implementations, referring to
When the power assembly 60 is placed on the ground in a manner of using the whole body portion 612 as the support, at least two convex ribs 6121 contact the ground, and the power assembly slides on the ground by using the at least convex ribs 6121 as sliding rails. The two convex ribs 6121 may reduce a tendency of the power assembly 60 to roll in the axial direction, to implement more stable sliding. In addition, a contact area between the power assembly 60 and the ground is reduced. When the power assembly 60 is displaced on a lawn, while wear of the power assembly 60 is reduced, damage to the lawn is further reduced. In addition, when the power assembly 60 is horizontally placed on the ground by using the whole body portion 612 as the support, an arrangement of the convex rib increases a distance between the power assembly 60 and the ground, and a possibility that the fluid inlet 614 and the fluid outlet 615 contact the ground is reduced during movement of the power assembly 60.
Certainly, the movement structure may further be a plurality of support rollers (not shown) disposed at the whole body portion. The power assembly 60 is placed on the ground by using the plurality of support rollers as supports. The plurality of support rollers are capable of rolling on the ground under the action of the pulling force, to implement the movement of the power assembly 60 on the ground. The movement structure is not limited thereto, and may be another structure for reducing a degree of wear of the power assembly 60 and assisting the power assembly 60 in moving.
Different working scenarios have different requirements for a liquid output pressure and a liquid output volume of the cleaning device assembly 100. The liquid output pressure reflects dirt cleaning capability. In a constant liquid output volume, a larger liquid output pressure indicates a larger impact from a liquid on a target object per unit area and a faster removing rate of dirt from a surface of the target object. The required liquid output pressure also changes according to different target objects to be cleaned. The liquid output volume reflects dirt cleaning efficiency. At a constant liquid output pressure, a larger liquid output volume indicates a shorter time of completing the cleaning of the target object. In this implementation, a maximum liquid output pressure externally outputted by the cleaning device assembly 100 may be between 5 Mpa and 13 Mpa, and an externally outputted maximum liquid output volume may be between 250 L/h and 350 L/h, to meet effective cleaning in a middle and heavy working condition scenarios.
To match a relatively high requirement for working performance described above, in this implementation, as shown in
In the concept of the present invention, as shown in
In a common commercially available cleaning device, to reduce the fatigue when the user performs cleaning work for a long time, it is generally avoided to provide any relatively heavy body on the spray gun 101. The spray gun 101 is almost formed by only a spray gun housing 11 that is mated with a main unit casing through the garden hose, thereby minimizing the force with which an operator holds the machine. In this way, the main unit casing is large in size and heavy in weight, which limits mobility of the cleaning device assembly 100. However, the battery pack 20, the motor 62, and the pump 63 are main weight bodies of the cleaning device assembly 100. The main weight bodies are concentrated on the power assembly 60, inevitably limiting agility of movement of the power assembly 60.
To implement that the power assembly 60 is capable of freely moving under the traction of the connecting path 30, In addition to considering a form design of the power assembly 60, position arrangement of a battery pack, a motor, and a pump in an existing product is further changed in this application, to ensure that a weight of the hand-held spray gun is relatively light, and a weight of the power assembly can be reduced, to reduce a dragging force to be applied to the power assembly 60, to facilitate free and quick movement of the power assembly 60 on the ground.
Preferably, the battery pack 20 and the functional part are distributed. Specifically, the battery pack 20 is connected to the spray gun assembly 10 and is used for supplying energy to the cleaning device assembly 100, and the battery pack 20 matches the spray gun assembly 10 to form the spray gun 101. In an implementation, the battery pack 20 is disposed on the handle 113, the spray gun liquid inlet 111 is disposed on the spray gun housing 11 close to the battery pack 20, and the spray gun liquid outlet 112 is disposed on the spray gun housing 11 away from the battery pack 20, so that a fluid flowing out from the spray gun liquid outlet 112 is prevented from being sprayed onto the battery pack 20, to avoid unnecessary safety accidents. In another implementation, in a longitudinal direction, the battery pack 20 is located in the enclosed space. Specifically, the battery pack 20 is located below the main portion 114 and is located in the front of the handle 113, that is, the handle 113 and the battery pack 20 are located on the same side of a central axis of the main portion 114. Through the arrangement, the battery pack 20 does not need to be placed in an additional expanded space, a size of the spray gun assembly 10 in a vertical direction is not increased as much as possible, a size of the spray gun assembly 10 in a transverse direction is not increased, and the structure is compact. Certainly, in other implementations, the battery pack 20 may be alternatively disposed on the power assembly 60. However, to help the user hold the spray gun 101 to drive the power assembly 60 to move, a mounting position of the battery pack 20 should match arrangement of the functional part. Specifically, the battery pack 20, the motor 62, the transmission mechanism 65, and the pump 63 may be sequentially arranged in an extending direction of the motor shaft. In this case, the battery pack 20 may be arranged above the pump 63 or below the motor 62.
Further, in consideration of a cleaning range of a spray gun, for the spray gun assembly 10 shown in
Specifically, as shown in
It should be noted that the holding support point is specifically a position in which an index finger of a holding hand of the operator presses against the spray gun housing 11 when the operator grips the handle 113 by hand. The holding support point provides an important force-bearing point at which the user's hand supports the spray gun assembly 10 and is also a rotation point at which the spray gun assembly 10 deflects. The holding support point is determined by an arrangement position of the holding portion of the handle 113 and is generally located at an upper end of the holding portion of the handle 113, that is, an end close to a central axis of the spray bar 12.
In this embodiment, referring to
As shown in
However, the power supply assembly 20 is disposed on the spray gun assembly 10, the weight of the spray gun 101 is inevitably increased, and the user needs to overcome a larger gravity when operating the spray gun. During operation of the user holding the spray gun in
In this embodiment, a weight of the spray gun formed when the power supply assembly 20 is mounted on the spray gun assembly 10 is m2, only a weight of the power supply assembly 20 is increased, that is, m2−m1 is equal to the weight of the power supply assembly 20. The weight of the power supply assembly 20 is generally between 300 g and 1600 g, and the weight of the spray gun assembly 10 ranges from 300 g to 800 g. Therefore, m2 is generally equal to (2 to 3) times m1. In this embodiment, due to a balancing function of the power supply assembly 20, the center of gravity G2 of the spray gun 101 is close to the holding portion of the handle 113, and that L2 is less than ⅓ of L1 is usually implemented. When L2 is a limit value, that is, when L2=(⅓) L1, because M2=m2*g*L2, M2=(2 to 3) m1*g*(⅓) L1, that is, M2=(⅔ to 1)*m1*g*L1, M2=(⅔ to 1) M1, that is, M2 is less than M1. It may be learned from the foregoing derivation that when the power supply assembly 20 is mounted on the spray gun assembly 10, the weight m2 of the spray gun 101 increases, and the moment arm L2 decreases in a multiple. However, m2*L2 is less than m1*L1, so that the rotational inertia M2 is less than M1. Therefore, in the state shown in
As shown in
In addition, the battery pack is disposed outside the power assembly 60, to reduce the weight of the power assembly 60. When the power assembly slides on the ground, a friction force is small, so that the power assembly 60 can be conveniently dragged by a user and can be easily lifted. In this implementation, a ratio of the weight of the power assembly 60 to a total weight of the spray gun 101 and the power assembly 60 is not greater than 50%. Specifically, the weight of the power assembly 60 is 1.6 kg, and the weight of the spray gun 101 is 2.5 kg. In some extreme scenarios, for example, even if a part of the structure of the power assembly 60 falls into a pot hole, because the power assembly 60 has a relatively light weight, a user may apply an upward force perpendicular to the ground, enabling the power assembly 60 to be separated from the obstacle.
Referring to
In an embodiment, the liquid outlet pipeline 30a and the power supply line 30b are disposed independently. The liquid outlet pipeline 30a is connected between the spray gun liquid inlet 111 and the fluid outlet 615, to implement connection between the spray gun assembly 10 and the power assembly 60 to transport a fluid pressurized by the power assembly 60 to the spray gun assembly 10. The spray gun assembly is provided with a first electrical connection port, the power assembly 60 is provided with a second electrical connection port, and the power supply line 30b is connected between the first electrical connection port and the second electrical connection port, to electrically connect the power supply assembly 20 and the power assembly 60, so as to implement that the power supply assembly supplies power to the power assembly 60. The liquid outlet pipeline 30a is hermetically connected to the spray gun liquid inlet 111 and the fluid outlet 615, and the power supply line 30b is hermetically connected to the first electrical connection port and the second electrical connection port.
Referring to
Further, referring to
Referring to
Specifically, the first connection end 40 includes a water connector 42 and an electrical connection hole 43. The second connection end 50 includes an electrical connector 51 and a water connection hole 52, the water connection hole 52 is in communication with the spray gun liquid inlet 111, and the electrical connector 51 is in communication with the first electrical connection port. The water connector 42 and/or the electrical connector 51 is provided with the sealing member 41. The water connector 42 is inserted into the water connection hole 52, the electrical connector 51 is inserted into the electrical connection hole 43, and the sealing member 41 is hermetically connected to an inner wall of the water connection hole 52, thereby implementing sealing between the water connector 42 and the water connection hole 52 and/or sealing between the electrical connector 51 and the electrical connection hole 43.
It may be understood that the water connector 42 is inserted into the water connection hole 52, to introduce a pressurized fluid into the spray gun assembly 10. The electrical connector 51 is inserted into the electrical connection hole 43, to implement electrical connection between the power assembly 60 and the power supply assembly 20.
It should be understood that, in other embodiments, a position and a structure of the first connection end 40 and a position and a structure of the second connection end 50 may be interchanged. The first connection end 40 and the second connection end 50 with the positions interchanged match each other. Sealing is performed between the first connection end 40 and the second connection end 50 by using the sealing member 41.
Further, the water and electricity integrated pipe 31 includes a pipe body 32, a liquid supply pipe 33 disposed in the pipe body 32, and a power supply line 34 provided between the pipe body 32 and the liquid supply pipe 33. Herein, it may be learned that the liquid supply pipe 33 and the power supply line 34 are integrated, so that the water and electricity integrated pipe 31 has both a function of conveying a fluid and a function of supplying power and transmitting a signal. Further, the spray gun housing 11, the power supply assembly, and the power assembly 60 are prevented from being connected by more water pipes and electric lines, so that the overall structure of the cleaning device assembly 100 is simpler, and it is more convenient to use the cleaning device assembly and maintain pipelines.
The pipe body 32 is made of a tear-resistant, wear-resistant, and bend-resistant polymer material. The polymer material may be thermoplastic polyurethanes (TUP), polyvinyl chloride (PVC) or the like. The liquid supply pipe 33 is used for transporting a fluid. A spacing layer 35 is provided between an inner wall of the pipe body 32 and the liquid supply pipe 33. The power supply line 34 is accommodated in the spacing layer 35. Certainly, in other implementations, the spacing layer 35 may not be provided between the inner wall of the pipe body 32 and the liquid supply pipe 33. In this case, the power supply line 34 may be embedded into a pipe wall of the pipe body 32. Therefore, whether the spacer layer 35 is provided may be determined according to an actual requirement. In this embodiment, the spacing layer 35 is provided between the inner wall of the pipe body 32 and the liquid supply pipe 33.
It may be understood that the structural form of the water and electricity integrated pipe 31 is not limited to the above description. For example, the power supply line 34 may be externally attached to the water and electricity integrated pipe 31 to form an integral body; or the power supply line 34 and the water and electricity integrated pipe 31 may be integrally formed. In this implementation, the power supply line 34 is accommodated in the water and electricity integrated pipe 31, so that the power supply line 34 and the water and electricity integrated pipe 31 are integrally disposed.
An anti-loosening structure 331 is disposed between the liquid supply pipe 33 and the water connector 42, so as to prevent the water connector 42 from loosening when the water and electricity integrated pipe 31 is pulled from and inserted in the spray gun liquid inlet 111. Specifically, the anti-loosening structure 331 includes a sawtooth unit disposed on the water connector 42, and the sawtooth unit is connected to the inner wall of the liquid supply pipe 33.
Further, in this embodiment, the power supply line 34 is accommodated in the spacing layer 35. The power supply line 34 includes a power cable and a signal cable, the power cable is used for electrical connection, and the signal cable is used for signal transmission. Preferably, the signal cable adopts a transmission cable with a shielding function, so that the signal transmission of the signal cable is prevented from interference by the power cable.
Preferably, the spacing layer 35 is filled with a protection structure 351 that is used for wrapping the power supply line 34 and is fixed in the spacing layer 35, and the power supply line 34 is insulated from a fluid entering the water and electricity integrated pipe 31 by the protection structure 351, to prevent the impact of the fluid on the power supply line 34 and avoid the occurrence of electric leakage and the like.
Certainly, in this embodiment, the spacing layer 35 may be partially or fully filled with the protection structure 351, and a specific filling manner may be performed according to an actual requirement. Partial filling may properly reduce a weight of the water and electricity integrated pipe 31, further making the device portable.
Further, the protection structure 351 is an insulation layer filled in the spacing layer 35. The insulation layer is made of a waterproof, anti-aging, and wear-resistant polymer material. The polymer material may be a thermoplastic elastomer (TPE) and the like.
In this implementation, the pipe body 32, the liquid supply pipe 33, the power supply line 34, and the protection structure 351 are processed by an integral molding process, so as to facilitate processing and manufacturing of the water and electricity integrated pipe 31.
The power assembly 60 is capable of standing on the ground with a lower end at the bottom. In an implementation, referring to
In this embodiment, the pump 63 includes a liquid inlet end port for a fluid to enter and a liquid outlet end port for a fluid to leave, the liquid outlet end port is in communication with the fluid outlet 615, and the liquid inlet end port is in communication with the fluid inlet 614. The power assembly 60 further includes a fluid channel in communication with the fluid inlet 614 and the liquid inlet end port. A fluid enters the fluid channel from the fluid inlet 614, enters the pump 63 from the liquid inlet end port for being pressurized, and flows from the liquid outlet end port to the fluid outlet 615 to be discharged. Preferably, a length of the fluid channel is between 50 mm and 400 mm, for example, 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm or 400 mm. It may be understood that, in other implementations, the pump 63 may adopt other types of fluid transportation devices such as a diaphragm pump and a piston pump, provided that the pump is capable of pressurizing the fluid flow.
The power assembly 60 further includes a motor accommodating body disposed at a periphery of the motor 62, only one end of the motor accommodating body is provided with an opening, and the motor accommodating body is sleeved on the motor 62 through the opening. A cooling chamber circumferentially surrounding the periphery of the motor 62 is formed between the motor accommodating body and the inner wall of the whole body portion 612, and the cooling chamber is in communication with the fluid channel. A fluid drawn from the fluid inlet 614 passes through the cooling chamber, and the liquid removes a part of heat generated by the motor 62 during circulation in the cooling chamber, to dissipate heat for the motor 62. Preferably, the motor accommodating body is made of a thermally conductive material, for example, an aluminum material.
Further, in this implementation, the cleaning device assembly 100 has a first working state and a second working state. In the first working state, the fluid inlet 614 is directly used as a suction port for a fluid, and in the second working state, the fluid inlet 614 is connected to an external water source through the liquid inlet path 30c, and an opening of the liquid inlet path 30c is used as a suction port for a fluid. In this case, the power assembly 60 is separated from the fluid without direct contact with the fluid. Specifically, the liquid inlet path 30c is a garden hose. Certainly, the liquid inlet path 30c is not limited to the garden hose, and further includes an adapter connecting the power assembly 60 and the fluid channel, a water container, and the like.
The first working state includes that the power assembly 60 is directly placed into the external water source, to implement immersion of at least the fluid inlet 614 into the external water source. The user may select either the power assembly 60 to work in the first working state or the second working state according to the cleaning requirements. The first working state includes an immersion working mode allowing complete immersion in water and a floating working mode allowing floating on the water surface. When the power assembly 60 is in the immersion working mode, the fluid inlet 614 and the fluid outlet 615 are both located below the water surface. When the power assembly 60 is in the floating working mode, the fluid inlet 614 is located below the water surface, and the fluid outlet 615 is located above the water surface. The immersion working mode may be embodied in two states of sinking to the bottom of the fluid or suspending in the fluid. When the power assembly 60 sinks to the bottom of the fluid, preferably, overall density of the power assembly 60 is greater than density of water, so that buoyancy of the power assembly is less than gravity of the power assembly. When the power assembly 60 is suspended in the fluid, preferably, the overall density of the power assembly 60 is equal to the density of water, so that buoyancy of the power assembly is equal to gravity of the power assembly.
Because the fluid inlet 614 is directly placed in the fluid, a water entry path between an external fluid and a valve core of a water entry one-way valve in the pump body is relatively short. A length of the water entry path may be considered as a length between the fluid inlet 614 and the liquid inlet end port (a path between the liquid inlet end port of the pump and the water entry one-way valve is omitted herein), and preferably, the length between the fluid inlet 614 and the liquid inlet end port is between 50 mm and 400 mm. Because the water entry path through which the fluid with a specific water pressure flows is relatively short, the loss of water pressure in the flowing process is small. Therefore, a pushing force of a drawn fluid to the valve core of the water entry one-way valve in the pump 63 is relatively large, the one-way valve can be quickly pushed open. When the fluid with a pressure flows through the pump body, most of air in the pump body can be quickly emptied, and a self-priming time is reduced. When the power assembly 60 is in the immersion working mode, further, in this implementation, the motor 62 is close to the fluid inlet 614, and the pump 63 is close to the fluid outlet 615. Such a structural design in which the motor 62 is close to the fluid inlet 614 and the pump 63 is close to the fluid outlet 615 enables the center of gravity of the power assembly 60 to be close to the fluid inlet 614, to place the power assembly 60 in the fluid, helping to ensure that the fluid inlet 614 remains underwater. The fluid outlet 615 located above is closer to the operator to facilitate connection of the water pipe and the spray gun by the operator, and the connecting path 30 is shorter. In addition, the motor 62 is submerged in the fluid to facilitate heat dissipation of the motor 62.
Further, as shown in
In addition, alternatively, the overall density of the power assembly 60 may be greater than the density of water, and the power assembly is suspended in the fluid through the float structure 64. The float structure 64 prevents the power assembly 60 from sinking to the bottom of water, prevents the power assembly 60 from interference and damage in an underwater environment, and enables the power assembly 60 to adapt to a turbid or deep water source, for example, a lake, a river, and a pond, so that applicability of the cleaning device assembly 100 is further improved. Specifically, the amount of a float member in the float structure 64 may be increased or reduced. Certainly, in another implementation, other structures may be used for implementation.
As shown in
Referring to
Preferably, the float member 641 is cylindrical, the connection groove 641a is provided in an inner wall of the cylinder, and the main housing 61 is sleeved in the float member 641. Certainly, in another implementation, the float member 641 may further be rectangular, spherical or the like. The float member 641 may be a foam plastic ring, an air bag or the like.
Referring to
Certainly, in another implementation, the main housing 61 and the float member 641 may be detachably connected by another structure such as a screw or a bolt.
Specifically, as shown in
In this embodiment, the spray gun assembly 10 is provided with a control mechanism for controlling the motor 62 to operate, and the control mechanism includes a control switch for controlling the motor 62 to be turned on/off and a governor for adjusting a rotational speed of the motor 62. The governor includes at least two speed gears, the control switch is specifically a switch trigger, and the switch trigger is capable of controlling whether to electrically connect or disconnect the power supply assembly 20 and the motor 62.
In this embodiment, the cleaning device assembly 100 further includes a control board (not shown), and the control board is disposed on the spray gun assembly 10. The control board is separately electrically connected to the power supply assembly, the motor 62, and the switch. The control board is internally provided with a control program, and the control program is used for controlling the power supply of the power supply assembly 20, the rotation of the motor 62, and change in the rotational speed of the motor 62. In this embodiment, the control board is disposed above a joint between the handle 113 and the power supply assembly 20. A position of the control board is away from a water outlet of the cleaning device assembly 100, to effectively prevent splashes of water at the water outlet from wetting the control board.
The following describes a cleaning process of the cleaning device assembly 100.
A user holds the handle 113 of the cleaning device assembly 100, connects the external pump 63 and a fluid, and controls, through a control assembly, the motor to drive the pump 63 to work. The fluid pressurized by the pump 63 is transported into the spray gun housing 11 through the connecting member 300 and sprayed from the spray bar 12 to the outside, to clean an external target object.
The cleaning device assembly 100 optionally has a plurality of working states, and the cleaning device assembly 100 can be selectively switched between the working states to adapt to different scenarios, thereby improving the use convenience for the user.
As shown in the embodiments in
In the embodiment shown in
In the embodiments shown in
As shown in
In the embodiments shown in
In addition, the cleaning device 100 further has a third working state in which the power assembly 60 is not mounted and a pressurized fluid is directly connected through the liquid inlet pipe. The pressurized fluid should be understood as a fluid that has a specific pressure formed by an external power source, for example, tap water. A water source can be transported to the spray gun assembly 10 through the liquid inlet pipe and sprayed from the spray gun assembly 10 to clean an external target object.
The cleaning device assembly 100 is not limited to only the above first working state, the second working state, and the third working state, but also has other working states suitable for various working environments. Details are not described herein again.
The described embodiments are merely some embodiments of the present invention and are described in detail. However, it should not be understood as a limitation to the patent scope of the present invention. It should be noted that a person of ordinary skill in the art may further be make several variations and improvements without departing from the concept of the present invention, and these variations and improvements all fall within the protection scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810715824.5 | Jun 2018 | CN | national |
| 201811054477.2 | Sep 2018 | CN | national |
This application is a National Stage Application of International Application No. PCT/CN2019/093622, filed on Jun. 28, 2019, which claims priority to Chinese Patent Application 201810715824.5, filed on Jun. 29, 2018, and entitled “CLEANING DEVICE” and Chinese Patent Application 201811054477.2, filed on Sep. 11, 2018, and entitled “CLEANING DEVICE AND MAIN UNIT ASSEMBLY APPLIED TO CLEANING DEVICE”, which is incorporated herein by reference in its entirety.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2019/093622 | 6/28/2019 | WO | 00 |
