Water tank structure and cleaning robot

Abstract

The utility model relates to the field of cleaning equipment, and provides a water tank structure and a cleaning robot. The water tank structure comprises a water tank, an air pump, a pipe connecting piece and a ventilation valve. The upper side of the water tank is provided with an air injection hole, and the lower side is provided with a water outlet. The pipe connecting piece is connected with the air pump through a first pipe body and connected with the air injection hole through a second pipe body, the pipe connecting piece is provided with a containing cavity, an air inlet hole and an air outlet hole, the air inlet hole communicates with the containing cavity and the first pipe body, and the air outlet hole communicates with the containing cavity and the second pipe body. The ventilation valve is installed in the containing cavity and has a closed state and an open state opposite to each other. The ventilation valve closes the air inlet in a closed state and opens the air inlet in an open state. The ventilation valve is used for being switched to the closed state under the condition that the air pump is shut down. According to the water tank structure, under the condition that the air pump is stopped, the air inlet can be closed through the ventilation valve in the closed state to prevent fluid from flowing into the air outlet from the air inlet, and therefore the risk that the water tank structure seeps water from the water outlet in the standing state of the cleaning robot can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and in particular relates to a water tank structure and a cleaning robot. Background Art

[0002] Household or commercial cleaning robots with mopping functions, such as sweepers and sweep-and-mop machines, are provided with a water tank structure. In some cases, the water tank structure includes a water tank and an air pump disposed on the upper side of the water tank, and a water outlet is disposed on the lower side of the water tank. When the cleaning robot is in the working state, the air pump can be started and gas can be injected into the water tank to enable the liquid in the water tank to seep out from the water outlet and soak the cleaning cloth. However, when the cleaning robot is in the stationary state, the air pump is turned off but air leakage may occur, causing water to seep from the water outlet in the water tank structure. Utility Model Content

[0003] An embodiment of the present application provides a water tank structure, which aims to solve the problem that water may seep from the water outlet of the existing water tank structure when the cleaning robot is in a stationary state.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, a water tank structure is provided, the water tank structure comprising:

[0006] A water tank, wherein an air injection hole is provided on the upper side of the water tank, and a water outlet hole is provided on the lower side of the water tank;

[0007] An air pump is arranged on the upper side of the water tank;

[0008] a pipe connector, arranged on the upper side of the water tank, the pipe connector being connected to the air pump through a first pipe body, and being connected to the air injection hole through a second pipe body, the pipe connector being provided with a receiving cavity, an air inlet hole and an air outlet hole, the air inlet hole being connected to the receiving cavity and the first pipe body, and the air outlet hole being connected to the receiving cavity and the second pipe body;

[0009] A breathable valve is installed in the accommodating cavity, and the breathable valve has a relative closed state and an open state; the breathable valve closes the air inlet hole in the closed state, and opens the air inlet hole in the open state; the breathable valve is used to switch to the closed state when the air pump is shut down.

[0010] In some embodiments, the air-permeable valve includes a docking portion and an elastic opening and closing portion, the docking portion docks with the air inlet and is fixed relative to the air inlet, and the elastic opening and closing portion is connected to an end of the docking portion away from the air inlet;

[0011] The air valve has an air passage connected to the air inlet, and the air passage passes through the docking portion and the elastic opening and closing portion; the elastic opening and closing portion can undergo elastic deformation in the open state and open the corresponding channel opening of the air passage; the elastic opening and closing portion can restore the elastic deformation in the closed state and close the corresponding channel opening of the air passage.

[0012] In some embodiments, the docking portion abuts against an inner wall of the accommodating cavity where the air inlet hole is provided.

[0013] In some embodiments, on the inner wall of the accommodating cavity where the air inlet hole is provided, the projection of the air inlet hole falls within the projection of the air permeable channel.

[0014] In some embodiments, the breathable valve is a duckbill valve.

[0015] In some embodiments, the water tank structure further includes a mounting seat made of an elastic material, wherein the mounting seat is mounted on the upper side of the water tank, a limiting groove is provided on the upper side of the mounting seat, and the air pump is limitedly mounted in the limiting groove.

[0016] In some embodiments, the mounting seat is provided with a first clamp and a second clamp oppositely disposed, the first clamp and the second clamp are disposed on opposite sides of the limiting groove along its groove width direction, and the first clamp and the second clamp are jointly tightened on the side of the air pump away from the limiting groove.

[0017] In some embodiments, the water tank structure further includes a mounting frame and a water seepage cloth, wherein the mounting frame is disposed in the water tank and fixed relative to the water tank, and the water seepage cloth is installed on the lower side of the mounting frame, and the water seepage cloth covers the water outlet.

[0018] In some embodiments, a protrusion is provided at a position of the mounting frame corresponding to the water outlet, and the protrusion presses against a corresponding portion of the water-permeable cloth.

[0019] In a second aspect, a cleaning robot is provided, comprising the water tank structure provided in an embodiment of the present application.

[0020] The beneficial effects of the water tank structure provided by the present application are:

[0021] The water tank structure provided in the embodiment of the present application can connect the air pump to the air injection hole of the water tank via the first tube body, the tube connector, and the second tube body in sequence, and a breathable valve is provided in the accommodating cavity of the tube connector. Based on this, when the air pump is started, the breathable valve can be switched from a closed state to an open state so that the breathable valve opens the air inlet, and the gas output by the air pump can flow into the water tank in a unidirectional and directional manner via the first tube body, the air inlet hole of the tube connector, the air outlet hole of the tube connector, the second tube body, and the air injection hole in sequence, so that the liquid inside the water tank can seep out from the water outlet hole through the gas and air pressure, so that the cleaning cloth can be soaked by the liquid seeping from the water outlet hole, and the cleaning robot can perform mopping operations through the soaked cleaning cloth. On the contrary, when the air pump stops, the air vent can be switched from an open state to a closed state so that the air vent closes the air inlet, and the air vent can block the passage from the air inlet to the air outlet inside the pipe connector, thereby combining the sealing performance of the air pump itself and the blocking effect of the air vent to reliably prevent the fluid from flowing from the air inlet of the pipe connector into the air outlet, and in particular, prevent the leak from flowing from the air inlet of the pipe connector into the air outlet when the air pump leaks, thereby reducing the risk of water leakage in the water tank when the air pump stops, and reducing the risk of water leakage from the water outlet when the cleaning robot is stationary. In this way, the performance, reliability and user experience of the water tank structure and the cleaning robot can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A three-dimensional schematic diagram of a water tank structure provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 An exploded schematic diagram of the water tank structure is provided;

[0025] Figure 3 for Figure 2 An exploded schematic diagram of the second shell, mounting base, air pump, first tube body, tube connector, second tube body, and charging sheet is provided;

[0026] Figure 4 for Figure 2 An exploded schematic diagram of the first shell, the water seepage cloth, and the mounting frame is provided;

[0027] Figure 5A top view of an assembly of a pipe connector and a breathable valve provided in an embodiment of the present application;

[0028] Figure 6 for Figure 5 A cross-sectional view along AA is provided;

[0029] Figure 7 for Figure 6 A cross-sectional view along BB is provided, wherein the vent valve is in a closed state;

[0030] Figure 8 A cross-sectional view of an assembly of a pipe connector and a breathable valve provided in an embodiment of the present application, wherein the breathable valve is in an open state.

[0031] Among them, the reference numerals in the figure are:

[0032] 10-water tank, 11-air injection hole, 12-water outlet hole, 13-first shell, 14-second shell, 15-liquid injection port; 20-air pump; 30-pipe connector, 31-accommodating chamber, 32-air inlet hole, 33-air outlet hole, 34-first connecting shell, 341-first plug rod, 3411-first hook, 35-second connecting shell, 351-second plug rod, 3511-second hook; 40-first tube body; 50-second tube body; 60-air valve, 61-docking part, 62-elastic opening and closing part, 63-air permeable channel; 70-mounting seat, 71-limiting groove, 72-first clamp, 73-second clamp; 80-mounting frame, 81-protrusion; 90-water-permeable cloth; 100-cover body; 110-charging sheet; 120-liquid injection plug. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clear and understandable, the application is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0034] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] A household or commercial cleaning robot with a mopping function, such as a sweeper, a sweeper-mop machine, a floor scrubber, or a floor washer, is provided with a water tank structure. In some cases, the water tank structure includes a water tank for storing liquid (such as water), and an air pump disposed on the upper side of the water tank, and a water outlet is disposed on the lower side of the water tank. When the cleaning robot is in a working state, the air pump can be started and gas can be injected into the water tank to enable the liquid in the water tank to seep out from the water outlet and soak the cleaning cloth, thereby facilitating the cleaning robot to perform mopping operations through the soaked cleaning cloth.

[0038] However, when the cleaning robot is in a stationary state (including shutdown state, paused state, etc.), although the air pump is in a shutdown state, the air pump itself may still leak. The leaked gas can easily enter the water tank, causing the water tank structure to seep water from the water outlet, resulting in poor use of the cleaning robot and a poor user experience.

[0039] Therefore, the embodiment of the present application provides a water tank structure, which can reduce the risk of water leakage from the water outlet of the water tank structure when the cleaning robot is in a static state, and can improve the performance, reliability and user experience of the water tank structure and the cleaning robot.

[0040] The specific implementation of this application is described in detail below in conjunction with specific embodiments:

[0041] See also Figure 1 , Figure 2 Some embodiments of the present application provide a water tank structure suitable for household or commercial cleaning robots with mopping functions, such as sweepers, sweepers and moppers, scrubbers, and floor washers.

[0042] Please also read Figure 3 , Figure 4 , Figure 5 , Figure 6 The water tank structure includes a water tank 10, an air pump 20, a pipe connector 30 and a breathable valve 60. Among them, an air injection hole 11 is provided on the upper side of the water tank 10, and a water outlet hole 12 is provided on the lower side of the water tank 10. The air pump 20 is arranged on the upper side of the water tank 10. The pipe connector 30 is arranged on the upper side of the water tank 10, and the pipe connector 30 is connected to the air pump 20 through the first tube body 40, and is connected to the air injection hole 11 through the second tube body 50. The pipe connector 30 is provided with a receiving chamber 31, an air inlet 32 ​​and an air outlet 33. The air inlet 32 ​​communicates with the receiving chamber 31 and the first tube body 40, and the air outlet 33 communicates with the receiving chamber 31 and the second tube body 50. The breathable valve 60 is installed in the receiving chamber 31, and the breathable valve 60 has a relative closed state and an open state. The breathable valve 60 closes the air inlet 32 ​​in the closed state, and opens the air inlet 32 ​​in the open state. The air-permeable valve 60 is used to switch to a closed state when the air pump 20 stops.

[0043] It should be noted that the water tank 10 is a structure for storing liquid, wherein the liquid may be one of clean water, detergent, fragrance, disinfectant, or a mixture of two or more of these, so that the liquid has the cleaning, disinfecting and / or deodorizing effects required by the cleaning robot.

[0044] The water tank 10 may adopt various structures. In some embodiments, the water tank 10 may include a first shell 13 and a second shell 14 covering the first shell 13, wherein the second shell 14 and the first shell 13 together enclose an internal space, at least a portion of which is used to store liquid.

[0045] It should also be noted that, in a normal use state, the water tank 10 has an upper side and a lower side relative to each other.

[0046] The lower side of the water tank 10 is provided with a water outlet hole 12, and one or more water outlet holes 12 may be provided, and the water outlet hole 12 may be not limited to a circular hole, a rectangular hole, a waist-shaped hole, etc. The water outlet hole 12 passes through the lower wall of the water tank 10, and the water outlet hole 12 is used for the liquid in the water tank 10 to seep out through it to soak the cleaning cloth.

[0047] The upper side of the water tank 10 is provided with an air injection hole 11, and one or more air injection holes 11 may be provided, and the air injection hole 11 may be not limited to a circular hole, a rectangular hole, a waist-shaped hole, etc. The air injection hole 11 passes through the upper wall of the water tank 10, and the air injection hole 11 is used for the air pump 20 to inject gas into the water tank 10 through the air injection hole 11, so as to enable the liquid in the water tank 10 to seep out from the water outlet hole 12 through the gas and air pressure.

[0048] It should also be noted that the air pump 20, the first tube body 40, the tube connector 30 and the second tube body 50 are all installed on the upper side of the water tank 10 and are connected in sequence. The second tube body 50 is also connected to the air injection hole 11. Figure 3 As shown, in some embodiments, one gas injection hole 11 is provided, and the air pump 20, the first tube body 40, the pipe connector 30, the second tube body 50, and the gas injection hole 11 are connected in sequence. In other embodiments, multiple gas injection holes 11 are provided, and the air pump 20, the first tube body 40, and the pipe connector 30 are connected in sequence, and each gas injection hole 11 is connected in parallel to the pipe connector 30 through the second tube body 50.

[0049] The pipe connector 30 is provided with a receiving cavity 31 inside, and the shape of the receiving cavity 31 can be flexibly set, for example, it can be cylindrical. The pipe connector 30 is provided with an air inlet 32 ​​on the side close to the first tube body 40. One or more air inlet holes 32 can be provided. The air inlet holes 32 can be not limited to circular holes, rectangular holes, etc., and the air inlet holes 32 connect the receiving cavity 31 with the inner space of the first tube body 40. The pipe connector 30 is provided with an air outlet 33 on the side close to the second tube body 50. One or more air outlet holes 33 can be provided. The air outlet holes 33 can be not limited to circular holes, rectangular holes, etc., and the air outlet holes 33 connect the receiving cavity 31 with the inner space of the second tube body 50.

[0050] It should also be noted that a breathable valve 60 is provided in the accommodating chamber 31. The breathable valve 60 has a relatively closed state and an open state. In the closed state of the breathable valve 60, the breathable valve 60 can close all the air inlets 32, for example, it can be closed on the side of the air inlet 32 ​​close to the air outlet 33, so as to block the passage from the air inlet 32 ​​to the air outlet 33 inside the pipe connector 30, thereby preventing the fluid (including gas, liquid, gas-liquid mixed fluid) from flowing from the air inlet 32 ​​to the air outlet 33, and also preventing the fluid from flowing back from the air outlet 33 to the air inlet 32. In the open state of the breathable valve 60, the breathable valve 60 can open the air inlet 32, so that the pipe connector 30 can form a one-way flow channel along the air inlet 32, the accommodating chamber 31, and the air outlet 33, thereby allowing the fluid to flow from the air inlet 32 ​​to the air outlet 33 in one direction, but preventing the fluid from flowing back from the air outlet 33 to the air inlet 32.

[0051] The air-permeable valve 60 is used to switch from a closed state to an open state when the air pump 20 is started. That is, when the air pump 20 is started, the air pump 20 can inhale gas and cause the gas to flow into the air inlet 32 ​​of the pipe connector 30 through the first tube body 40 by compression, pushing or squeezing; the air-permeable valve 60 can switch from a closed state to an open state to open the air inlet 32, so that the gas can flow into the water tank 10 in a unidirectional and directional manner along the path of the air inlet 32, the air outlet 33, the second tube body 50, and the air injection hole 11, so that the liquid inside the water tank 10 can be caused to seep out from the water outlet 12 by gas and air pressure.

[0052] The air-permeable valve 60 is also used to switch to a closed state when the air pump 20 stops working. That is, when the air pump 20 stops working, the air-permeable valve 60 can be switched from an open state to a closed state to close all the air inlets 32, and block the passage from the air inlet 32 ​​to the air outlet 33 inside the pipe connector 30. Based on this, even if there is a gas leak in the air pump 20, the air-permeable valve 60 can prevent the gas leaked from the air pump 20 from flowing into the accommodating cavity 31 and the air outlet 33 from the air inlet 32, thereby preventing the leaked gas from flowing into the water tank 10 and causing water seepage in the water tank 10 when the air pump 20 stops working.

[0053] The air pump 20 may be an electrically driven electric air pump.

[0054] In summary, the water tank structure provided by the embodiment of the present application can connect the air pump 20 to the air injection hole 11 of the water tank 10 via the first tube body 40, the pipe connector 30, and the second tube body 50 in sequence, and a breathable valve 60 is provided in the accommodating chamber 31 of the pipe connector 30. Based on this, when the air pump 20 is started, the breathable valve 60 can be switched from a closed state to an open state so that the breathable valve 60 opens the air inlet 32, so that the gas output by the air pump 20 can flow into the water tank 10 in a unidirectional and directional manner via the first tube body 40, the air inlet 32 ​​of the pipe connector 30, the air outlet 33 of the pipe connector 30, the second tube body 50, and the air injection hole 11 in sequence, so that the liquid inside the water tank 10 can be caused to seep out from the water outlet 12 via the gas and air pressure, so that the cleaning cloth can be soaked by the liquid seeping from the water outlet 12, and the cleaning robot can perform mopping operation via the soaked cleaning cloth. On the contrary, when the air pump 20 stops, the air vent 60 can be switched from the open state to the closed state so that the air vent 60 closes the air inlet 32, and the air vent 60 can block the passage from the air inlet 32 ​​to the air outlet 33 inside the pipe connector 30, so that the air pump 20 can be combined with the sealing performance of the air pump 20 itself and the blocking effect of the air vent 60 to reliably prevent the fluid from flowing from the air inlet 32 ​​of the pipe connector 30 into the air outlet 33, especially when the air pump 20 leaks, the air leakage can be prevented from flowing from the air inlet 32 ​​of the pipe connector 30 into the air outlet 33, so that the risk of water leakage in the water tank 10 when the air pump 20 stops can be reduced, and the risk of water leakage from the water outlet 12 in the water tank structure when the cleaning robot is stationary can be reduced. In this way, the performance, reliability and user experience of the water tank structure and the cleaning robot can be effectively improved.

[0055] Furthermore, no matter the air valve 60 is in the closed state or in the open state, the air valve 60 can prevent the fluid from flowing back from the air outlet 33 of the pipe connector 30 to the air inlet 32, and in particular, can prevent the liquid in the water tank 10 from flowing back from the air injection hole 11, the second tube body 50, and the air outlet 33 of the pipe connector 30 to the air inlet 32, thereby reducing the risk of the liquid directly contacting the air pump 20, reducing the risk of the air pump 20 rusting and short-circuit failure, improving the reliability of the air pump 20, and extending the service life of the air pump 20.

[0056] See also Figure 3 , Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the air-permeable valve 60 includes a docking portion 61 and an elastic opening and closing portion 62. The docking portion 61 docks with the air inlet 32 ​​and is fixed relative to the air inlet 32. The elastic opening and closing portion 62 is connected to one end of the docking portion 61 away from the air inlet 32. The air-permeable valve 60 has an air-permeable channel 63 connected to the air inlet 32, and the air-permeable channel 63 runs through the docking portion 61 and the elastic opening and closing portion 62. The elastic opening and closing portion 62 can be elastically deformed in an open state and open the corresponding channel opening of the air-permeable channel 63. The elastic opening and closing portion 62 can restore the elastic deformation in a closed state and close the corresponding channel opening of the air-permeable channel 63.

[0057] It should be noted that the docking portion 61 is docked with the air inlet hole 32. The docking portion 61 can be installed in the air inlet hole 32 with a limit, or can be installed on the inner wall of the accommodating cavity 31 with a limit, and is fixed relative to the air inlet hole 32, that is, the installation position and installation state are stabilized relative to the air inlet hole 32.

[0058] The elastic opening and closing portion 62 is connected to an end of the docking portion 61 away from the air inlet 32. The elastic opening and closing portion 62 and the docking portion 61 may be connected in an integral manner or in a separate manner.

[0059] The end surface of the docking portion 61 close to the air inlet 32 ​​is provided with a ventilation channel 63, which is connected to the air inlet 32. The ventilation channel 63 extends along the center line of the docking portion 61 and the center line of the elastic opening and closing portion 62, and passes through the docking portion 61 and the elastic opening and closing portion 62.

[0060] It should also be noted that the elastic opening and closing portion 62 is elastic. When the air pump 20 is started, the gas output by the air pump 20 can enter the air permeable channel 63 along the first tube body 40 and the air inlet 32, and impact the elastic opening and closing portion 62 along the air permeable channel 63, forcing the elastic opening and closing portion 62 to expand and elastically deform and automatically switch from a closed state to an open state, forcing the elastic opening and closing portion 62 to automatically open the channel opening of the air permeable channel 63 away from the docking portion 61, thereby opening the air inlet 32, allowing the gas to flow into the water tank 10 unidirectionally and directionally along the path of the air inlet 32, the air permeable channel 63, the air outlet 33, the second tube body 50, and the air injection hole 11, so that the liquid inside the water tank 10 can seep out from the water outlet 12 through the gas and air pressure.

[0061] On the contrary, when the air pump 20 stops, the elastic opening and closing portion 62 can automatically switch from the open state to the closed state based on its own elasticity, automatically restore elastic deformation, and automatically close and close the channel opening of the air permeable channel 63 away from the docking portion 61, thereby closing the air inlet 32 ​​and blocking the channel from the air inlet 32 ​​to the air outlet 33 inside the pipe connector 30. In this way, the fluid (especially the air leakage of the air pump 20) can be prevented from flowing from the air inlet 32 ​​to the air outlet 33, and the fluid (especially the liquid in the water tank 10) can be prevented from flowing back from the air outlet 33 to the air inlet 32.

[0062] The elastic opening and closing portion 62 may be in various shapes, such as lip shape, petal shape, spiral shape, etc.

[0063] By adopting the above scheme, the air-permeable valve 60 can be connected to the air inlet 32 ​​through the docking portion 61 fixed relative to the air inlet 32. The air-permeable valve 60 can also be automatically switched between the closed state and the open state through the elastic opening and closing portion 62 connected to the docking portion 61. Based on this, when the air pump 20 is started, the elastic opening and closing portion 62 can expand and elastically deform under the impact of the air flow coming from the air inlet 32 ​​along the air permeable channel 63 to it, and automatically open the channel opening of the air permeable channel 63 away from the docking portion 61, so that the air-permeable valve 60 can automatically switch from the closed state to the open state, so that the air-permeable valve 60 can automatically and quickly open the air inlet 32, and allow the gas to flow into the water tank 10 unidirectionally and directionally along the path of the air inlet 32, the air permeable channel 63, the air outlet 33, the second tube body 50, and the air injection hole 11, so that it is convenient to promote the liquid inside the water tank 10 to seep out from the water outlet 12 through the gas and air pressure. On the contrary, when the air pump 20 is shut down, the elastic opening and closing portion 62 can automatically restore its elastic deformation based on its own elasticity, and automatically close and seal the channel opening of the air passage 63 away from the docking portion 61, so that the air valve 60 can automatically switch from an open state to a closed state, so that the air valve 60 can automatically, quickly and reliably close the air inlet 32, and block the channel from the air inlet 32 ​​to the air outlet 33, thereby preventing the fluid (especially the leakage of the air pump 20) from flowing from the air inlet 32 ​​to the air outlet 33, and also preventing the fluid (especially the liquid in the water tank 10) from flowing back from the air outlet 33 to the air inlet 32, thereby reducing the risk of water seepage from the water outlet 12 of the water tank structure when the cleaning robot is in a stationary state, and reducing the risk of the air pump 20 rusting or short-circuiting due to contact with the liquid.

[0064] In addition, the air valve 60 has a simple structure, which can help simplify and compact the structural setting of the assembly formed by the air valve 60 and the pipe connector 30, can help compress the occupied space of the assembly formed by the air valve 60 and the pipe connector 30, can help reduce the cost of the assembly formed by the air valve 60 and the pipe connector 30, and can help reduce the cost of the water tank structure.

[0065] Of course, in other embodiments, the air valve 60 may adopt other structural designs to close or open the air inlet 32. For example, the elastic opening and closing portion 62 of the air valve 60 may be changed to other structures (such as an opening and closing cover structure design) that can open and close the air passage 63. For another example, the air valve 60 may be installed beside the air inlet 32 ​​and adopt an umbrella valve design to close or open the air inlet 32 ​​via the umbrella portion of the umbrella valve.

[0066] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the docking portion 61 abuts against the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided.

[0067] It should be noted that the docking portion 61 abuts against the inner wall of the accommodating cavity 31 provided with the air inlet hole 32, so that the air permeable channel 63 of the docking portion 61 is adjacent to and connected with the air inlet hole 32. In this case, in some embodiments, the docking portion 61 can be fixedly connected (for example, adhesively fixed) to the inner wall of the accommodating cavity 31 provided with the air inlet hole 32, so that the docking portion 61 is fixed relative to the air inlet hole 32. In other embodiments, the accommodating cavity 31 can have a limiting cavity, and the docking portion 61 can be adapted to be accommodated in the limiting cavity, so that the circumferential movement and axial movement of the docking portion 61 can be limited by the limiting cavity, so that the docking portion 61 is fixed relative to the air inlet hole 32.

[0068] By adopting the above scheme, on the basis of the previous embodiment, by making the docking portion 61 of the air valve 60 abut against the inner wall of the accommodating chamber 31 provided with the air inlet hole 32, the installation of the air valve 60 can be facilitated, the assembly convenience and efficiency between the air valve 60 and the accommodating chamber 31, and between the air valve 60 and the air inlet hole 32 can be improved, the positioning convenience and positioning accuracy between the air valve 60 and the air inlet hole 32 can be improved, and the air permeable channel 63 of the docking portion 61 can be conveniently docked and connected with the air inlet hole 32, so that the fluid can directly, smoothly and smoothly enter the air permeable channel 63 of the docking portion 61 from the air inlet hole 32, and the air permeable valve 60 can be conveniently used to reliably control the fluid flowing through the air inlet hole 32.

[0069] Of course, in other embodiments, the docking portion 61 of the air valve 60 can be directly installed in the air inlet 32 ​​in a limited manner.

[0070] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, on the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided, the projection of the air inlet hole 32 falls within the projection of the air permeable passage 63. That is, the projection of the air inlet hole 32 on the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided falls within the projection of the air permeable passage 63 on the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided.

[0071] By adopting the above scheme, by making the projection of the air inlet hole 32 on the inner wall of the accommodating chamber 31 where the air inlet hole 32 is provided fall into the projection of the air permeable channel 63 on the inner wall of the accommodating chamber 31 where the air inlet hole 32 is provided, the fluid can enter the air permeable channel 63 of the docking part 61 smoothly, unimpeded and without loss from the air inlet hole 32, and the risk of the end of the docking part 61 abutting against the accommodating chamber 31 being damaged, deformed or displaced by the impact of gas can be reduced, and the risk of the fluid bypassing the air permeable channel 63 between the inner wall of the accommodating chamber 31 and the docking part 61 can be reduced, thereby facilitating the air valve 60 to receive all the fluid from the air inlet hole 32 and facilitating the air valve 60 to reliably control the fluid flowing through the air inlet hole 32.

[0072] Of course, in other embodiments, on the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided, the projection of the air inlet hole 32 may be arranged to coincide with or be arranged identically with the projection of the air permeable channel 63. Alternatively, on the inner wall of the accommodating cavity 31 where the air inlet hole 32 is provided, the projection of the air permeable channel 63 may fall within the projection of the air inlet hole 32.

[0073] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the breathable valve 60 is a duckbill valve.

[0074] It should be noted that a duckbill valve is a valve whose valve flap is shaped like a duckbill. The air-permeable valve 60 is a duckbill valve, that is, the elastic opening and closing portion 62 is shaped like a duckbill.

[0075] By adopting the above scheme, the air valve 60 can be made into a duckbill valve so that the air valve 60 can open and close the air passage 63, have a faster opening and closing speed, and have good sealing performance in the closed state, thereby improving the structural reliability, opening and closing flexibility, use performance and service life of the air valve 60.

[0076] Of course, in other embodiments, the air-permeable valve 60 may be a valve in other valve flap shapes, for example, the elastic opening and closing portion 62 may be in other shapes such as petal shape, spiral shape, etc.

[0077] See also Figure 2 , Figure 3 In some embodiments of the present application, the water tank structure also includes a mounting seat 70 made of an elastic material. The mounting seat 70 is installed on the upper side of the water tank 10. A limiting groove 71 is provided on the upper side of the mounting seat 70, and the air pump 20 is limitedly installed in the limiting groove 71.

[0078] It should be noted that the mounting seat 70 is mounted on the upper side of the water tank 10, and the mounting seat 70 is made of an elastic material (such as rubber, etc.). A limiting groove 71 is provided on the upper side of the mounting seat 70, and the air pump 20 is limitedly mounted in the limiting groove 71. The mounting seat 70 can play the role of limiting, fixing, shock absorbing, and protecting the air pump 20.

[0079] By adopting the above scheme, by limiting the air pump 20 and installing it in the limiting groove 71 of the mounting seat 70, and installing the mounting seat 70 on the upper side of the water tank 10, on the one hand, it is convenient to realize the limiting fixation of the air pump 20, and it is convenient to promote the limiting and positioning of the air pump 20 relative to the upper side of the water tank 10. Based on this, it is conducive to stabilizing the connection relationship between the air pump 20 and the first tube body 40, etc., so that the air pump 20 can reliably output gas to the first tube body 40 when starting, and the reliability of the use of the air pump 20 can be improved. On the other hand, the vibration and noise generated by the air pump 20 can be absorbed and reduced through the elastic and soft mounting seat 70, and the air pump 20 can be protected. Based on this, the influence of noise and vibration on other components such as the water tank 10 can be reduced, the working noise of the water tank structure and the cleaning robot can be reduced, the risk of damage to the air pump 20 can be reduced, and the service life of the air pump 20 can be extended.

[0080] See also Figure 2 , Figure 3 In some embodiments of the present application, the mounting base 70 is provided with a first clamp 72 and a second clamp 73 which are arranged opposite to each other. The first clamp 72 and the second clamp 73 are arranged on opposite sides of the limiting groove 71 along the groove width direction. The first clamp 72 and the second clamp 73 are jointly tightened to the side of the air pump 20 away from the limiting groove 71.

[0081] It should be noted that the mounting base 70 is provided with at least one group of first clamp 72 and second clamp 73. The first clamp 72 and second clamp 73 of each group are arranged opposite to each other and are arranged on opposite sides of the limiting groove 71 along the groove width direction of the limiting groove 71. In each group of the first clamp 72 and the second clamp 73, the first clamp 72 is bent and extended upward and toward the side close to the second clamp 73, and the second clamp 73 is bent and extended upward and toward the side close to the first clamp 72. The first clamp 72 and the second clamp 73 of each group can be tightened together on the side of the air pump 20 away from the limiting groove 71.

[0082] By adopting the above solution, on the basis of the air pump 20 being limited and installed via the limiting groove 71 of the mounting seat 70, the first clamp 72 and the second clamp 73 arranged opposite to each other can be used to clamp together the side of the air pump 20 away from the limiting groove 71 to limit the air pump 20 from leaving the limiting groove 71. Based on this, the mounting seat 70 can combine the limiting groove 71, the first clamp 72 and the second clamp 73 to limit and wrap the air pump 20 in multiple directions, thereby enhancing the limiting, fixing, shock absorbing and protecting effects of the mounting seat 70 on the air pump 20.

[0083] See also Figure 2 , Figure 4In some embodiments of the present application, the water tank structure also includes a mounting frame 80 and a seepage cloth 90. The mounting frame 80 is disposed in the water tank 10 and fixed relative to the water tank 10. The seepage cloth 90 is installed on the lower side of the mounting frame 80, and the seepage cloth 90 covers the water outlet 12.

[0084] It should be noted that the mounting frame 80 is disposed in the water tank 10. The mounting frame 80 can be connected to the water tank 10 (e.g., the lower wall) by a fixed connection method (e.g., welding, bonding, etc.) or a detachable connection method (e.g., bolt connection, clamping, etc.) to be fixed relative to the water tank 10, that is, to stabilize the installation position and installation state relative to the water tank 10.

[0085] A water seepage cloth 90 is installed on the lower side of the mounting frame 80. The mounting frame 80 is used to support the water seepage cloth 90 and stabilize the installation position and installation state of the water seepage cloth 90, so that the water seepage cloth 90 is stabilized between the lower side of the mounting frame 80 and the lower wall of the water tank 10. The water seepage cloth 90 can be installed on the lower side of the mounting frame 80 by, but not limited to, clamping, bonding, etc. The water seepage cloth 90 extends through the water outlet 12 and covers the water outlet 12. Figure 4 As shown, in some embodiments, a plurality of water outlet holes 12 are penetrated through the lower wall of the water tank 10 , and the water seepage cloth 90 extends through each of the water outlet holes 12 and covers each of the water outlet holes 12 .

[0086] By adopting the above scheme, the water seepage cloth 90 can be supported and the installation position and installation state of the water seepage cloth 90 can be stabilized by the mounting frame 80 fixed relative to the water tank 10, so that the water seepage cloth 90 is stabilized between the lower side of the mounting frame 80 and the lower wall of the water tank 10, so that the water seepage cloth 90 covers the water outlet 12. Based on this, when the air pump 20 is started and the air valve 60 is in an open state, the water seepage cloth 90 can play the role of "dispersing liquid and diverting flow", so that the flow rate of the liquid seeping from the water outlet 12 can be balanced, and the effect of uniform water discharge can be achieved, thereby improving the performance and user experience of the water tank structure and the cleaning robot. On the contrary, when the air pump 20 is stopped and the air valve 60 is in a closed state, the water seepage cloth 90 can play a little sealing effect, thereby reducing the risk of water seepage from the water outlet 12 of the water tank structure when the cleaning robot is in a static state, and improving the performance, reliability and user experience of the water tank structure and the cleaning robot.

[0087] See also Figure 2 , Figure 4 In some embodiments of the present application, a protrusion 81 is provided at a position of the mounting frame 80 corresponding to the water outlet hole 12 , and the protrusion 81 presses against a corresponding portion of the water-permeable cloth 90 .

[0088] It should be noted that a protrusion 81 is provided at a position of the mounting frame 80 corresponding to the water outlet hole 12 in the up-down direction. The protrusion 81 is provided to protrude toward one side of the water outlet hole 12. The protrusion 81 can press the corresponding portion of the water seepage cloth 90 so that the portion of the water seepage cloth 90 is limited and fits into the corresponding water outlet hole 12. The shape of the protrusion 81 can be the same as the shape of the water outlet hole 12, or it can be different. The size of the protrusion 81 can be the same as or smaller than the size of the water outlet hole 12.

[0089] By adopting the above solution, the protrusion 81 can be provided at the position of the mounting frame 80 corresponding to the water outlet hole 12 in the up-down direction, so that the protrusion 81 can press the part of the water seepage cloth 90 corresponding to the protrusion 81, so that the part of the water seepage cloth 90 can be limited and tightly fitted into the corresponding water outlet hole 12. Based on this, it is conducive to stabilizing the position of the water seepage cloth 90 relative to the water outlet hole 12, reducing the risk of displacement of the water seepage cloth 90 relative to the water outlet hole 12 under the action of liquid scouring or other external forces, and promoting the water seepage cloth 90 to reliably and stably cover the water outlet hole 12, so that the water seepage cloth 90 can play the role of "diversion" and "sealing" for a long time and reliably.

[0090] See also Figure 3 , Figure 5 , Figure 6 In some embodiments of the present application, the pipe connector 30 includes a first connecting shell 34 and a second connecting shell 35. The first connecting shell 34 is provided with an air inlet 32, and the second connecting shell 35 is provided with an air outlet 33. The first connecting shell 34 and the second connecting shell 35 are separately connected and together enclose a accommodating cavity 31.

[0091] It should be noted that the first connection shell 34 and the second connection shell 35 are formed independently. The first connection shell 34 is arranged on the side of the pipe connector 30 close to the first pipe body 40, and the second connection shell 35 is arranged on the side of the pipe connector 30 close to the second pipe body 50. The first connection shell 34 and the second connection shell 35 are arranged opposite to each other and are separately connected to each other. The separate connection method between the first connection shell 34 and the second connection shell 35 can be, but is not limited to, plug-in, snap-on, sleeve, threaded connection, etc. Figure 6 As shown, in some embodiments, the first connection shell 34 and the second connection shell 35 can be plug-fitted and snap-fitted.

[0092] The first connecting shell 34 and the second connecting shell 35 which are separately connected to each other can enclose together to form an accommodating cavity 31 . The first connecting shell 34 is provided with an air inlet 32 ​​on one side close to the first tube body 40 , and the second connecting shell 35 is provided with an air outlet 33 on one side close to the second tube body 50 .

[0093] By adopting the above solution, the first connection shell 34 and the second connection shell 35 can be independently formed first, and then the first connection shell 34 and the second connection shell 35 can be separately connected to form the pipe connector 30. Based on this, the processing and forming of the pipe connector 30 can be facilitated, and the assembly of the pipe connector 30 and the breathable valve 60 can be facilitated, so that the processing convenience and assembly convenience of the pipe connector 30 can be improved.

[0094] See also Figure 3 , Figure 5 , Figure 6 In some embodiments of the present application, a first plug rod 341 is provided on one side of the tube connector 30 close to the first tube body 40 , the first plug rod 341 passes through an air inlet hole 32 , and the first plug rod 341 is inserted into the first tube body 40 .

[0095] It should be noted that a first inserting rod 341 is provided on one side of the pipe connector 30 close to the first pipe body 40. Figure 3 , Figure 6 As shown, in some embodiments, the pipe connector 30 includes a first connecting shell 34 and a second connecting shell 35 , and the first inserting rod 341 is disposed on a side of the first connecting shell 34 close to the first pipe body 40 .

[0096] The first plug rod 341 is protruding outward from the tube connector 30, and the first plug rod 341 is inserted into the first tube body 40. The first plug rod 341 is provided with an air inlet hole 32, and the air inlet hole 32 passes through from the end surface of the first plug rod 341 close to the first tube body 40 to the accommodating cavity 31. When the first plug rod 341 is inserted into the first tube body 40, the air inlet hole 32 can connect the accommodating cavity 31 with the space inside the first tube body 40.

[0097] By adopting the above solution, by setting the first plug rod 341 on the side of the pipe connector 30 close to the first tube body 40 and inserting the first plug rod 341 into the first tube body 40, on the one hand, it is convenient to connect and assemble the pipe connector 30 and the first tube body 40, and the pipe connector 30 and the first tube body 40 can be connected tightly, reliably and stably via the first plug rod 341, and the risk of loosening, displacement and detachment between the pipe connector 30 and the first tube body 40 can be reduced. On the other hand, the contact area between the first plug rod 341 and the first tube body 40 can be increased, and a good sealing effect can be formed between the first plug rod 341 and the first tube body 40, so that the gas can be guided smoothly along the inner space of the first tube body 40 into the air inlet 32 ​​of the first plug rod 341, and the risk of gas leakage from the connection between the pipe connector 30 and the first tube body 40 can be reduced.

[0098] like Figure 3 , Figure 5 , Figure 6As shown, in some embodiments, an annular first hook portion 3411 is provided on the outer periphery of the first plug rod 341. Such a configuration can facilitate the first hook portion 3411 to enhance the connection strength, connection tightness, and connection reliability between the first plug rod 341 and the first tube body 40, thereby reducing the risk of loosening, displacement, and detachment between the first plug rod 341 and the first tube body 40, improving the sealing between the first plug rod 341 and the first tube body 40, and reducing the risk of gas leakage from the gap between the first plug rod 341 and the first tube body 40.

[0099] See also Figure 3 , Figure 5 , Figure 6 In some embodiments of the present application, a second plug rod 351 is provided on one side of the pipe connector 30 close to the second pipe body 50 , and the second plug rod 351 has an air outlet 33 extending therethrough, and the second plug rod 351 is inserted into the second pipe body 50 .

[0100] It should be noted that a second insertion rod 351 is provided on one side of the pipe connector 30 close to the second pipe body 50. Figure 3 , Figure 6 As shown, in some embodiments, the pipe connector 30 includes a first connecting shell 34 and a second connecting shell 35 , and the second insertion rod 351 is disposed on a side of the second connecting shell 35 close to the second pipe body 50 .

[0101] The second plug rod 351 is protruding outward from the tube connector 30, and the second plug rod 351 is inserted into the second tube body 50. The second plug rod 351 is provided with an air outlet 33, and the air outlet 33 passes through from the end surface of the second plug rod 351 close to the second tube body 50 to the accommodating cavity 31. When the second plug rod 351 is inserted into the second tube body 50, the air outlet 33 can communicate the accommodating cavity 31 with the space inside the second tube body 50.

[0102] By adopting the above solution, by arranging the second plug rod 351 on the side of the pipe connector 30 close to the second tube body 50 and inserting the second plug rod 351 into the second tube body 50, on the one hand, it is convenient to connect and assemble the pipe connector 30 and the second tube body 50, and the pipe connector 30 and the second tube body 50 can be connected tightly, reliably and stably via the second plug rod 351, and the risk of loosening, displacement and detachment between the pipe connector 30 and the second tube body 50 can be reduced. On the other hand, the contact area between the second plug rod 351 and the second tube body 50 can be increased, and a good sealing effect can be formed between the second plug rod 351 and the second tube body 50, so that the gas can be guided smoothly along the inner space of the second tube body 50 into the gas outlet 33 of the second plug rod 351, and the risk of gas leakage from the connection between the pipe connector 30 and the second tube body 50 can be reduced.

[0103] like Figure 3 , Figure 5, Figure 6 As shown, in some embodiments, an annular second hook portion 3511 is provided on the outer periphery of the second plug rod 351. Such a configuration can facilitate the second hook portion 3511 to enhance the connection strength, connection tightness, and connection reliability between the second plug rod 351 and the second tube body 50, thereby reducing the risk of loosening, displacement, and detachment between the second plug rod 351 and the second tube body 50, improving the sealing between the second plug rod 351 and the second tube body 50, and reducing the risk of gas leakage from the gap between the second plug rod 351 and the second tube body 50.

[0104] See also Figure 1 , Figure 2 In some embodiments of the present application, the water tank structure further includes a cover 100 that is covered on the upper side of the water tank 10. The cover 100 can be used to hide and protect structures such as the air pump 20, the first tube 40, the tube connector 30, the second tube 50, and the charging sheet 110. The cover 100 and the water tank 10 can be connected by bolts, but not limited to bolts. The air pump 20 can be electrically connected to the charging sheet 110.

[0105] See also Figure 1 , Figure 2 In some embodiments of the present application, a liquid injection port 15 is provided on the upper side of the water tank 10, and the liquid injection port 15 communicates the inside and the outside of the water tank 10. The water tank structure further includes a liquid injection plug 120, and the liquid injection plug 120 is detachably mounted on the liquid injection port 15. In this way, the liquid injection plug 120 can be pulled out of the liquid injection port 15 to facilitate the injection of liquid into the water tank 10 through the liquid injection port 15. The risk of liquid leakage from the liquid injection port 15 can also be reduced by installing the liquid injection plug 120 on the liquid injection port 15.

[0106] See also Figure 1 Some embodiments of the present application provide a cleaning robot, including the water tank structure provided in the embodiments of the present application.

[0107] It should be noted that the cleaning robot can be a household or commercial cleaning robot with a mopping function, such as a sweeper, a sweeper and mop, a floor scrubber, and a floor washer. The cleaning robot includes a host (not shown in the figure) and a water tank structure detachably connected to the host, and the water tank structure is the water tank structure provided in the embodiment of the present application.

[0108] By adopting the above solution, the cleaning robot can improve its performance, reliability and user experience by applying the water tank structure provided in the embodiment of the present application.

[0109] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A water tank structure, characterized in that: The water tank structure comprises: A water tank, wherein an air injection hole is provided on the upper side of the water tank, and a water outlet hole is provided on the lower side of the water tank; An air pump is arranged on the upper side of the water tank; a pipe connector, arranged on the upper side of the water tank, the pipe connector being connected to the air pump through a first pipe body, and being connected to the air injection hole through a second pipe body, the pipe connector being provided with a receiving cavity, an air inlet hole and an air outlet hole, the air inlet hole being connected to the receiving cavity and the first pipe body, and the air outlet hole being connected to the receiving cavity and the second pipe body; A breathable valve is installed in the accommodating cavity, and the breathable valve has a relative closed state and an open state; the breathable valve closes the air inlet hole in the closed state, and opens the air inlet hole in the open state; the breathable valve is used to switch to the closed state when the air pump is shut down.

2. The water tank structure according to claim 1, characterized in that: The air-permeable valve comprises a docking portion and an elastic opening and closing portion, wherein the docking portion docks with the air inlet and is fixed relative to the air inlet, and the elastic opening and closing portion is connected to an end of the docking portion away from the air inlet; The air-permeable valve has an air-permeable passage communicating with the air inlet, and the air-permeable passage runs through the docking portion and the elastic opening and closing portion; The elastic opening and closing portion can be elastically deformed in the open state and open the corresponding channel opening of the ventilation channel; The elastic opening and closing portion can restore elastic deformation in the closed state and close the corresponding channel opening of the ventilation channel.

3. The water tank structure according to claim 2, characterized in that: The docking portion abuts against the inner wall of the accommodating cavity where the air inlet hole is disposed.

4. The water tank structure according to claim 3, characterized in that: The air inlet hole is arranged on the inner wall of the accommodating cavity, and the projection of the air inlet hole falls within the projection of the air permeable channel.

5. The water tank structure according to claim 2, characterized in that: The ventilation valve is a duckbill valve.

6. The water tank structure according to any one of claims 1 to 5, characterized in that: The water tank structure also includes a mounting seat made of elastic material, the mounting seat is installed on the upper side of the water tank, a limiting groove is provided on the upper side of the mounting seat, and the air pump is limitedly installed in the limiting groove.

7. The water tank structure according to claim 6, characterized in that: The mounting seat is provided with a first clamp and a second clamp which are arranged opposite to each other. The first clamp and the second clamp are arranged on opposite sides of the limiting groove along the groove width direction. The first clamp and the second clamp are jointly tightened on the side of the air pump away from the limiting groove.

8. The water tank structure according to any one of claims 1 to 5, characterized in that: The water tank structure also includes a mounting frame and a water seepage cloth. The mounting frame is arranged in the water tank and fixed relative to the water tank. The water seepage cloth is installed on the lower side of the mounting frame and covers the water outlet.

9. The water tank structure according to claim 8, characterized in that: The mounting frame is provided with a protrusion at a position corresponding to the water outlet hole, and the protrusion presses against a corresponding part of the water-permeable cloth.

10. A cleaning robot, characterized in that: Comprising the water tank structure as claimed in any one of claims 1 to 9.

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