Water tank assembly and cleaning robot

Abstract

The utility model relates to the field of cleaning equipment, and provides a water tank assembly and a cleaning robot. The water tank assembly comprises a water tank, an air pump and a check valve. Water seepage holes are formed in the bottom side of the water tank, and air injection holes are formed in the top side of the water tank. The air pump is arranged on the top side of the water tank. The one-way valve is arranged on the top side of the water tank. The one-way valve is connected with the air pump through a first pipe body and connected with the air injection hole through a second pipe body. The one-way valve has a closed state and a conducting state which are opposite to each other, the first pipe body is isolated from the second pipe body in the closed state, and the first pipe body is unidirectionally conducted to the second pipe body in the conducting state. The one-way valve is used for being switched to the closed state under the condition that the air pump is closed. According to the water tank assembly, under the condition that the air pump is closed, the sealing performance of the air pump and the sealing effect of the one-way valve in the closed state can be combined, fluid is reliably prevented from flowing into the second pipe body from the first pipe body, and therefore the risk that the water tank assembly seeps water from the water seepage holes 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 assembly and a cleaning robot. Background Art

[0002] Household or commercial cleaning robots with mopping functions, such as sweepers and sweep-and-mop machines, are usually equipped with a water tank assembly. In some cases, the water tank assembly includes a water tank and an air pump disposed on the top side of the water tank. A water seepage hole is disposed on the bottom side of the water tank. The air pump can be used to start the cleaning robot in the working state and inject gas into the water tank to enable the cleaning liquid inside the water tank to seep out from the water seepage hole and soak the cleaning cloth. However, when the cleaning robot is stationary, the air pump is turned off but may leak air, causing the water tank assembly to seep water from the water seepage hole. Utility Model Content

[0003] An embodiment of the present application provides a water tank assembly, which is intended to solve the problem that water may leak from the water seepage holes of the existing water tank assembly 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 assembly is provided, the water tank assembly comprising:

[0006] A water tank, wherein a water seepage hole is provided on the bottom side of the water tank, and an air injection hole is provided on the top side of the water tank;

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

[0008] A one-way valve is arranged on the top side of the water tank, and the one-way valve is connected to the air pump through a first tube body, and is connected to the air injection hole through a second tube body; the one-way valve has a relatively closed state and a conducting state, and the one-way valve isolates the first tube body from the second tube body in the closed state, and conducts one-way flow from the first tube body to the second tube body in the conducting state; the one-way valve is used to switch to the closed state when the air pump is turned off.

[0009] In some embodiments, the one-way valve comprises a valve body, an elastic member, and a movable member. The valve body is provided with a containing cavity, an air inlet hole, and an air outlet hole. The air inlet hole is provided on a side of the valve body close to the first tube body and communicates with the containing cavity and the first tube body. The air outlet hole is provided on a side of the valve body close to the second tube body and communicates with the containing cavity and the second tube body.

[0010] The elastic member and the movable member are accommodated in the accommodating cavity, one end of the elastic member is connected to the inner wall of the accommodating cavity close to the second tube body, and the other end of the elastic member is connected to the movable member;

[0011] In the closed state of the one-way valve, the movable member is sealed at the air inlet hole under the elastic force of the elastic member.

[0012] In some embodiments, the movable member is a sphere.

[0013] In some embodiments, a first ring portion is protruding from the inner wall of the accommodating cavity close to the first tube body, and the first ring portion is arranged around the edge of the air inlet hole. A hemispherical groove is provided on the side of the first ring portion close to the movable part, and the groove is used for partially embedding the movable part in the closed state of the one-way valve.

[0014] In some embodiments, the one-way valve further includes a sealing ring, which is disposed in the accommodating cavity and is limitedly installed on a side of the accommodating cavity close to the first tube body, and the sealing ring is disposed around the outer periphery of the air inlet.

[0015] In some embodiments, the valve body includes a first valve seat and a second valve seat, the first valve seat is provided with the air inlet hole, the second valve seat is provided with the air outlet hole, the first valve seat and the second valve seat are separately connected and together enclose the accommodating cavity.

[0016] In some embodiments, a first convex portion is provided on a side of the valve body close to the first tube body, the air inlet hole passes through the first convex portion, and the first convex portion is inserted into the first tube body.

[0017] In some embodiments, a second convex portion is provided on a side of the valve body close to the second tube body, the air outlet hole passes through the second convex portion, and the second convex portion is inserted into the second tube body.

[0018] In some embodiments, the water tank assembly further comprises a mounting seat made of an elastic material, the mounting seat is mounted on the top side of the water tank, and the air pump is limitedly mounted on the mounting seat.

[0019] In some embodiments, the water tank assembly further includes a bracket and a water seepage cloth, wherein the bracket is disposed in the water tank and fixed relative to the water tank, and the water seepage cloth is installed on the bottom side of the bracket, and the water seepage cloth covers the water seepage holes.

[0020] In some embodiments, a protrusion is provided at a position of the bracket corresponding to the water seepage hole, and the protrusion presses against a corresponding portion of the water seepage cloth.

[0021] In a second aspect, a cleaning robot is provided, comprising the water tank assembly provided in an embodiment of the present application.

[0022] The beneficial effects of the water tank assembly provided by the present application are:

[0023] The water tank assembly provided by the embodiment of the present application can switch the one-way valve from the closed state to the open state when the air pump is started, so that the gas output by the air pump can flow into the water tank in a unidirectional and directional manner through the first tube body, the one-way valve, the second tube body, and the air injection hole in sequence, so that the cleaning liquid inside the water tank can seep out from the water seepage hole through the gas and air pressure, so that the cleaning cloth can be soaked by the cleaning liquid seeping from the water seepage hole, and the cleaning robot can perform mopping operation through the soaked cleaning cloth. Conversely, when the air pump is turned off, the one-way valve can be switched from the open state to the closed state, so that the sealing performance of the air pump itself and the sealing effect of the one-way valve can be combined to reliably prevent the fluid from flowing from the first tube body into the second tube body, especially when the air pump leaks, the leaked gas can be prevented from flowing from the first tube body into the second tube body, so that the risk of water seepage in the water tank caused by the leaked gas flowing into the water tank when the air pump is turned off can be reduced, and the risk of water seepage from the water seepage hole in the stationary state of the water tank assembly can be reduced. In this way, the performance, reliability and user experience of the water tank assembly and the cleaning robot can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 A three-dimensional schematic diagram of a water tank assembly provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 An exploded schematic diagram of the water tank assembly is provided;

[0027] Figure 3 for Figure 2 An exploded schematic diagram of the shell, bracket and water-permeable cloth is provided;

[0028] Figure 4 A schematic diagram of the structure of an assembly of a first cover body, an air pump, a one-way valve, a first tube body, a second tube body, a mounting seat, and a charging sheet provided in an embodiment of the present application;

[0029] Figure 5 for Figure 4 A top view of an assembly of the first cover body, the air pump, the one-way valve, the first tube body, the second tube body, the mounting base, and the charging sheet is provided;

[0030] Figure 6 for Figure 5A cross-sectional view along AA is provided;

[0031] Figure 7 for Figure 6 An enlarged view of area B is provided, wherein the one-way valve is in a closed state;

[0032] Figure 8 This is a cross-sectional view of a one-way valve, a first tube body, and a second tube body provided in an embodiment of the present application, wherein the one-way valve is in a conducting state.

[0033] Among them, the reference numerals in the figure are:

[0034] 10-water tank, 11-water seepage hole, 12-air injection hole, 13-shell, 14-first cover, 15-liquid injection port; 20-air pump; 30-one-way valve, 31-valve body, 311-accommodating cavity, 3111-first limiting groove, 312-air inlet hole, 313-air outlet hole, 314-first ring part, 3141-groove, 315-first valve seat, 3151-first convex part, 31511-first hook , 316-second valve seat, 3161-second convex part, 31611-second hook, 32-elastic part, 33-movable part, 34-sealing ring; 40-first tube body; 50-second tube body; 60-mounting seat, 61-second limiting groove, 62-limiting convex part; 70-bracket, 71-protrusion; 80-water-permeable cloth; 90-liquid injection plug; 100-second cover body; 110-charging sheet; z-up and down direction. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Household or commercial cleaning robots with mopping functions, such as sweepers, sweepers and moppers, floor scrubbers, and floor washers, are usually provided with a water tank assembly. In some cases, the water tank assembly includes a water tank for storing cleaning liquid and an air pump disposed on the top side of the water tank. A water seepage hole is disposed on the bottom side of the water tank. The air pump can be used to start the cleaning robot in the working state and inject gas into the water tank to enable the cleaning liquid inside the water tank to seep out from the water seepage hole and soak the cleaning cloth, thereby facilitating the cleaning robot to perform mopping operations through the soaked cleaning cloth.

[0040] However, when the cleaning robot is in a stationary state (i.e., non-working state), although the air pump is in a closed state, the air pump itself may still leak. The leaked gas can easily enter the water tank, causing the water tank assembly to leak water from the seepage holes, resulting in poor use of the cleaning robot and a poor user experience.

[0041] Therefore, the embodiment of the present application provides a water tank assembly, which can reduce the risk of water leakage from the water seepage hole of the water tank assembly when the cleaning robot is in a static state, thereby improving the performance, reliability and user experience of the water tank assembly and the cleaning robot.

[0042] The specific implementation of this application is described in detail below in conjunction with specific embodiments:

[0043] See also Figure 1 Some embodiments of the present application provide a water tank assembly suitable for household or commercial cleaning robots with mopping functions, such as sweepers, sweepers and moppers, scrubbers, and floor washers.

[0044] See also Figure 2 , Figure 3 , Figure 4The water tank assembly includes a water tank 10, an air pump 20 and a one-way valve 30. A water seepage hole 11 is provided on the bottom side of the water tank 10, and an air injection hole 12 is provided on the top side of the water tank 10. The air pump 20 is provided on the top side of the water tank 10. The one-way valve 30 is provided on the top side of the water tank 10. The one-way valve 30 is connected to the air pump 20 through a first tube body 40, and is connected to the air injection hole 12 through a second tube body 50. The one-way valve 30 has a relatively closed state and a conducting state. The one-way valve 30 isolates the first tube body 40 from the second tube body 50 in the closed state, and conducts the first tube body 40 to the second tube body 50 in the conducting state. The one-way valve 30 is used to switch to the closed state when the air pump 20 is turned off.

[0045] It should be noted that the water tank 10 is a structure for storing cleaning liquid, wherein the cleaning liquid can be one of clean water, detergent, fragrance, disinfectant, or a mixture of two or more of these, so that the cleaning liquid has the desired cleaning, disinfecting and / or deodorizing effects.

[0046] The water tank 10 may adopt various structures. In some embodiments, the water tank 10 may include a housing 13 and a first cover 14 covering the housing 13, wherein the first cover 14 and the housing 13 together enclose an internal space, at least a portion of which is used to store cleaning liquid.

[0047] It should also be noted that, in a normal use state, the water tank 10 has a top side and a bottom side opposite to each other along the up-down direction z.

[0048] The bottom side of the water tank 10 is provided with a water seepage hole 11, and one or more water seepage holes 11 may be provided, and the water seepage hole 11 may be not limited to a circular hole, a rectangular hole, etc. The water seepage hole 11 passes through the bottom wall of the water tank 10, and the water seepage hole 11 is used for the cleaning liquid in the water tank 10 to seep out through it to soak the cleaning cloth.

[0049] The top side of the water tank 10 is provided with an air injection hole 12, and one or more air injection holes 12 may be provided, and the air injection holes 12 may be not limited to circular holes, rectangular holes, etc. The air injection holes 12 penetrate the top wall of the water tank 10, and the air injection holes 12 are used for the air pump 20 to inject gas into the water tank 10 through the air injection holes 12, so as to enable the cleaning liquid in the water tank 10 to seep out from the water seepage holes 11 through the gas and air pressure.

[0050] It should also be noted that the air pump 20 and the one-way valve 30 are both installed on the top side of the water tank 10. The air pump 20 and the one-way valve 30 are connected via a first tube 40. The one-way valve 30 is also connected to the air injection hole 12 via a second tube 50. Figure 2As shown, in some embodiments, one gas injection hole 12 is provided, and the air pump 20, the first tube body 40, the one-way valve 30, the second tube body 50, and the gas injection hole 12 are connected in sequence. In other embodiments, multiple gas injection holes 12 are provided, and the air pump 20, the first tube body 40, and the one-way valve 30 are connected in sequence, and each gas injection hole 12 can be connected in parallel to the one-way valve 30 through the second tube body 50.

[0051] The one-way valve 30 has a relatively closed state and a conducting state. In the closed state of the one-way valve 30, the one-way valve 30 can isolate the first tube body 40 and the second tube body 50 from each other to prevent the fluid (including gas, liquid, gas-liquid mixed fluid) from flowing from the first tube body 40 to the second tube body 50 via the one-way valve 30, and also prevent the fluid from flowing from the second tube body 50 to the first tube body 40 via the one-way valve 30. In the conducting state of the one-way valve 30, the one-way valve 30 can make the first tube body 40 unidirectionally conduct to the second tube body 50, so as to allow the fluid to flow from the first tube body 40 to the second tube body 50 via the one-way valve 30, but prevent the fluid from flowing from the second tube body 50 to the first tube body 40 in the reverse direction via the one-way valve 30.

[0052] The one-way valve 30 is used to switch from a closed state to a conducting 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 first tube body 40 by compression, pushing or squeezing; the one-way valve 30 can be switched from a closed state to a conducting state, so that the first tube body 40 is unidirectionally connected to the second tube body 50, so that the gas can flow into the water tank 10 in a unidirectional and directional manner along the first tube body 40, the one-way valve 30, the second tube body 50, and the air injection hole 12, so that the cleaning liquid inside the water tank 10 can be caused to seep out from the water seepage hole 11 through the gas and air pressure.

[0053] The one-way valve 30 is also used to switch to a closed state when the air pump 20 is turned off. That is, when the air pump 20 is turned off, the air pump 20 stops working, and the one-way valve 30 can be switched from a conducting state to a closed state to isolate the first tube body 40 and the second tube body 50 from each other. Based on this, even if there is a gas leak in the air pump 20, the one-way valve 30 can prevent the gas leaked from the air pump 20 from flowing from the first tube body 40 to the second tube body 50, 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 is turned off.

[0054] The air pump 20 may be an electric air pump, that is, the air pump 20 may be electrically driven.

[0055] In summary, the water tank assembly provided in the embodiment of the present application can switch the one-way valve 30 from a closed state to a conducting state when the air pump 20 is started, so that the gas output by the air pump 20 can flow into the water tank 10 in a unidirectional and direction manner through the first tube body 40, the one-way valve 30, the second tube body 50, and the air injection hole 12 in sequence, thereby facilitating the cleaning liquid inside the water tank 10 to seep out from the seepage hole 11 through the gas and air pressure, facilitating the cleaning cloth to be soaked with the cleaning liquid seeping from the seepage hole 11, and facilitating the cleaning robot to perform mopping operations with the soaked cleaning cloth. On the contrary, when the air pump 20 is turned off, the one-way valve 30 can be switched from the conducting state to the closed state, so as to combine the sealing performance of the air pump 20 itself and the closing effect of the one-way valve 30 to reliably prevent the fluid from flowing from the first tube body 40 into the second tube body 50, especially when there is air leakage in the air pump 20, the leaked air can be prevented from flowing from the first tube body 40 into the second tube body 50, thereby reducing the risk of water leakage in the water tank 10 when the air pump 20 is turned off due to the leaked air flowing into the water tank 10, and reducing the risk of water leakage in the water tank assembly from the water seepage hole 11 when the cleaning robot is in a static state. In this way, the performance, reliability and user experience of the water tank assembly and the cleaning robot can be effectively improved.

[0056] Furthermore, no matter in the closed state of the one-way valve 30 or in the conducting state of the one-way valve 30, the one-way valve 30 can prevent the fluid from flowing back from the second tube body 50 to the first tube body 40 through the one-way valve 30, and especially can prevent the cleaning liquid in the water tank 10 from flowing back from the air injection hole 12 and the second tube body 50 to the first tube body 40, thereby reducing the risk of liquids such as cleaning 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.

[0057] See also Figure 2 In some embodiments of the present application, a liquid injection port 15 is provided on the top 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 assembly further includes a liquid injection plug 90, and the liquid injection plug 90 is detachably mounted on the liquid injection port 15. In this configuration, the liquid injection plug 90 can be pulled out of the liquid injection port 15 to facilitate the injection of cleaning 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 90 on the liquid injection port 15.

[0058] See also Figure 5 , Figure 6 , Figure 7 , Figure 8In some embodiments of the present application, the one-way valve 30 includes a valve body 31, an elastic member 32 and a movable member 33. The valve body 31 is provided with a receiving chamber 311, an air inlet 312 and an air outlet 313. The air inlet 312 is provided on a side of the valve body 31 close to the first tube body 40, and connects the receiving chamber 311 and the first tube body 40. The air outlet 313 is provided on a side of the valve body 31 close to the second tube body 50, and connects the receiving chamber 311 and the second tube body 50. The elastic member 32 and the movable member 33 are accommodated in the receiving chamber 311, one end of the elastic member 32 is connected to the inner wall of the receiving chamber 311 close to the second tube body 50, and the other end of the elastic member 32 is connected to the movable member 33. In the closed state of the one-way valve 30, the movable member 33 is blocked in the air inlet 312 under the elastic force of the elastic member 32.

[0059] It should be noted that the valve body 31 is the shell structure of the one-way valve 30. The valve body 31 is provided with a receiving chamber 311 inside, and the shape of the receiving chamber 311 can be flexibly set, for example, it can be cylindrical. The valve body 31 is provided with an air inlet 312 on the side close to the first tube body 40, and the air inlet 312 can be, but not limited to, a circular hole, a rectangular hole, etc., and the air inlet 312 connects the receiving chamber 311 with the inner space of the first tube body 40. The valve body 31 is provided with an air outlet 313 on the side close to the second tube body 50, and the air outlet 313 can be, but not limited to, a circular hole, a rectangular hole, etc., and the air outlet 313 connects the receiving chamber 311 with the inner space of the second tube body 50.

[0060] The elastic member 32 is accommodated in the accommodating chamber 311, and the elastic member 32 has elastic properties. The elastic member 32 may be, but is not limited to, a spring. One end of the elastic member 32 is connected to the inner wall of the accommodating chamber 311 close to the second tube body 50, and the other end of the elastic member 32 is connected to the movable member 33. The connection method between the elastic member 32 and the inner wall of the accommodating chamber 311 may be, but is not limited to, welding, bonding, etc. The connection method between the elastic member 32 and the movable member 33 may be, but is not limited to, welding, bonding, etc.

[0061] The movable member 33 is accommodated in the accommodating cavity 311 and connected to the end of the elastic member 32. The movable member 33 has the freedom to move in a direction close to or away from the air inlet 312. The movable member 33 can be, but is not limited to, a sphere, a cylinder, a plate, and the like.

[0062] Based on the above structure, when the air pump 20 is started, especially when the fluid pressure at the air inlet hole 312 is greater than or equal to the pressure relief value (that is, the impact force of the gas input from the air inlet hole 312 is greater than or equal to the elastic force of the elastic member 32), the movable member 33 can overcome the elastic force of the elastic member 32 under the impact of the gas and do work, and move in a direction away from the air inlet hole 312 to unblock the air inlet hole 312, and cause the elastic member 32 to produce compression deformation and accumulate elastic force, so that the first tube body 40 can be unidirectionally conducted to the second tube body 50, and the one-way valve 30 can be easily and quickly switched to the conducting state.

[0063] On the contrary, when the fluid pressure at the air inlet hole 312 is less than the pressure relief value (i.e., the impact force of the gas input from the air inlet hole 312 is less than the elastic force of the elastic member 32), especially when the air pump 20 is turned off, the movable member 33 can be close to the air inlet hole 312 and blocked at the air inlet hole 312 under the elastic force of the elastic member 32, thereby isolating the first tube body 40 and the second tube body 50 from each other, which can conveniently and quickly prompt the one-way valve 30 to switch to the closed state and improve the sealing reliability of the one-way valve 30 in the closed state.

[0064] Moreover, when the fluid flows back from the air outlet 313 to the air inlet 312, the movable part 33 can be close to the air inlet 312 and blocked at the air inlet 312 under the combined effect of the elastic force of the elastic part 32 and the impact force of the reverse flow of the fluid, thereby preventing the fluid from flowing back into the air inlet 312 and the first tube body 40.

[0065] In this way, the structural design of the one-way valve 30 can be optimized, the structural reliability of the one-way valve 30 can be improved, the convenience of switching the one-way valve 30 between the closed state and the conducting state can be improved, the unidirectionality and directionality of the one-way valve 30 in the conducting state can be improved, and the sealing reliability of the one-way valve 30 in the closed state can be improved.

[0066] Of course, in other embodiments, the one-way valve 30 may adopt other structural designs. For example, the one-way valve 30 may adopt a duckbill valve, etc.

[0067] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the movable member 33 is a sphere.

[0068] By adopting the above scheme, by making the movable member 33 a sphere, the movable member 33 can have a lighter weight and smaller inertia, and can facilitate the movable member 33 to quickly respond to the elastic force of the elastic member 32 and the impact force of the gas to move. That is, when the air pump 20 is started, the movable member 33 can roll easily and flexibly under the impact of the gas, and evenly disperse the impact force through the spherical surface, and easily and quickly move away from the air inlet 312, thereby improving the switching convenience of the one-way valve 30 from the closed state to the conductive state, and improving the one-way conductive effect of the one-way valve 30 in the conductive state. When the air pump 20 is turned off, the movable part 33 can roll easily and flexibly under the elastic force of the elastic part 32, quickly and reliably block the air inlet hole 312, and form a good sealing contact with the air inlet hole 312 through the spherical surface, thereby improving the switching convenience of the one-way valve 30 from the conducting state to the closed state, and improving the sealing performance and sealing performance of the one-way valve 30 in the closed state.

[0069] Of course, in other embodiments, the movable member 33 may be a column, a plate, etc.

[0070] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, a first ring portion 314 is protruded from the inner wall of the accommodating cavity 311 close to the first tube body 40. The first ring portion 314 is arranged around the edge of the air inlet hole 312. A hemispherical groove 3141 is provided on one side of the first ring portion 314 close to the movable part 33. The groove 3141 is used for partially embedding the movable part 33 when the one-way valve 30 is in the closed state.

[0071] It should be noted that one end of the first ring portion 314 along its axis is connected to (eg, integrally connected to) the inner wall of the accommodating cavity 311 close to the first tube body 40 , and the other end of the first ring portion 314 along its axis is provided with a groove 3141 .

[0072] The first ring portion 314 is arranged in a ring shape and is arranged around the edge of the air inlet hole 312 , so that the inner ring space of the first ring portion 314 can form a part of the air inlet hole 312 .

[0073] The groove 3141 is recessed toward one side close to the air inlet 312 and is hemispherical. When the one-way valve 30 is in the closed state, a part of the spherical movable member 33 can be fittedly embedded in the groove 3141 to reliably block the inner ring space of the first ring portion 314, thereby reliably blocking the air inlet 312.

[0074] By adopting the above scheme, in the closed state of the one-way valve 30, the groove 3141 of the first ring portion 314 can be used to allow the spherical movable part 33 to be partially and tightly embedded therein, so that the movable part 33 can reliably block the inner ring space of the first ring portion 314 and the movable part 33 can reliably block the air inlet hole 312, thereby improving the closing performance and sealing performance of the one-way valve 30 in the closed state.

[0075] By adopting the above scheme, in the conducting state of the one-way valve 30, the inner ring space of the first ring portion 314 can be used as a part of the air inlet hole 312 to connect with the gas output by the air pump 20, and guide the gas to concentratedly impact the corresponding part of the movable part 33 (i.e., the part corresponding to the inner ring space of the first ring portion 314), so that the movable part 33 can be easily and quickly moved away from the air inlet hole 312 under the concentrated impact of the gas, thereby improving the switching convenience and switching rate of the one-way valve 30 from the closed state to the conducting state.

[0076] Of course, in other embodiments, the first ring portion 314 may be omitted, and the movable member 33 may directly abut against the edge of the air inlet hole 312 to block the air inlet hole 312 .

[0077] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the one-way valve 30 also includes a sealing ring 34, which is disposed in the accommodating chamber 311 and is limitedly installed on one side of the accommodating chamber 311 close to the first tube body 40, and the sealing ring 34 is arranged around the outer periphery of the air inlet hole 312.

[0078] It should be noted that a sealing ring 34 is provided in the accommodating chamber 311 of the one-way valve 30. The sealing ring 34 is provided on one side of the accommodating chamber 311 close to the first tube body 40 and is limited and positioned relative to the accommodating chamber 311. Figure 7 As shown, in some embodiments, a first annular limiting groove 3111 is provided on one side of the accommodating cavity 311 close to the first tube body 40, and the sealing ring 34 is limitedly installed in the first limiting groove 3111. Of course, in other embodiments, other limiting structures (such as limiting clips, etc.) can be used to limit the sealing ring 34.

[0079] The sealing ring 34 is annularly disposed and surrounds the outer circumference of the air inlet 312. Figure 7 As shown, in some embodiments, a first ring portion 314 is protruded from the inner wall of the accommodating cavity 311 close to the first tube body 40 , and the sealing ring 34 is disposed around the outer circumference of the first ring portion 314 .

[0080] By adopting the above scheme, in the closed state of the one-way valve 30, on the one hand, the sealing ring 34 can play a buffering role between the movable part 33 and the valve body 31, so as to reduce the risk of the movable part 33 quickly and vigorously hitting the valve body 31 under the action of elastic force, thereby helping to extend the service life of the movable part 33, the valve body 31 and the one-way valve 30; on the other hand, the sealing ring 34 can fill and seal the gap between the movable part 33 and the air inlet hole 312, which can improve the sealing between the movable part 33 and the air inlet hole 312, reduce the risk of gas leakage from the gap between the air inlet hole 312 and the movable part 33, and facilitate the movable part 33 to seal the air inlet hole 312, thereby improving the closing performance and sealing performance of the one-way valve 30 in the closed state.

[0081] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, the valve body 31 includes a first valve seat 315 and a second valve seat 316. The first valve seat 315 is provided with an air inlet hole 312, and the second valve seat 316 is provided with an air outlet hole 313. The first valve seat 315 and the second valve seat 316 are separately connected and jointly enclose a accommodating cavity 311.

[0082] It should be noted that the first valve seat 315 and the second valve seat 316 are formed independently. The first valve seat 315 is arranged on the side of the valve body 31 close to the first tube body 40, and the second valve seat 316 is arranged on the side of the valve body 31 close to the second tube body 50. The first valve seat 315 and the second valve seat 316 are arranged opposite to each other and are separately connected to each other. The separate connection between the first valve seat 315 and the second valve seat 316 can be, but is not limited to, plug-in, clamping, sleeve connection, threaded connection, etc. Figure 7 As shown, in some embodiments, the first valve seat 315 and the second valve seat 316 can be plug-fitted and snap-fitted.

[0083] The first valve seat 315 and the second valve seat 316 which are separately connected to each other can enclose together to form an accommodating cavity 311 . The first valve seat 315 is provided with an air inlet 312 on one side close to the first tube body 40 , and the second valve seat 316 is provided with an air outlet 313 on one side close to the second tube body 50 .

[0084] By adopting the above solution, the first valve seat 315 and the second valve seat 316 can be independently formed first, and then the first valve seat 315 and the second valve seat 316 can be separately connected to form the valve body 31. Based on this, the processing and forming of the valve body 31 can be facilitated, and the assembly of the various components of the one-way valve 30 can be facilitated, so that the processing convenience, assembly convenience and assembly efficiency of the one-way valve 30 can be improved.

[0085] See also Figure 6 , Figure 7 , Figure 8In some embodiments of the present application, a first protrusion 3151 is provided on one side of the valve body 31 close to the first tube body 40 , the first protrusion 3151 is penetrated by an air inlet hole 312 , and the first protrusion 3151 is inserted into the first tube body 40 .

[0086] It should be noted that a first convex portion 3151 is provided on one side of the valve body 31 close to the first tube body 40. Figure 7 As shown, in some embodiments, the valve body 31 includes a first valve seat 315 and a second valve seat 316 , and the first protrusion 3151 is disposed on a side of the first valve seat 315 close to the first tube 40 .

[0087] The first convex portion 3151 is arranged to protrude outward from the valve body 31, and the first convex portion 3151 is inserted into the first tube body 40. The first convex portion 3151 is provided with an air inlet hole 312, and the air inlet hole 312 passes through from the end surface of the first convex portion 3151 close to the first tube body 40 to the accommodating cavity 311. When the first convex portion 3151 is inserted into the first tube body 40, the air inlet hole 312 can communicate the accommodating cavity 311 with the inner space of the first tube body 40.

[0088] By adopting the above scheme, by providing the first convex part 3151 on the side of the valve body 31 close to the first tube body 40, and inserting the first convex part 3151 into the first tube body 40, on the one hand, it is convenient to connect and assemble the one-way valve 30 and the first tube body 40, and the one-way valve 30 and the first tube body 40 can be connected closely, reliably and stably via the first convex part 3151, and the risk of loosening, displacement and detachment between the one-way valve 30 and the first tube body 40 can be reduced. On the other hand, the contact area between the first convex part 3151 and the first tube body 40 can be increased, and a good sealing effect can be formed between the first convex part 3151 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 hole 312 of the first convex part 3151, and the risk of gas leakage from the connection between the one-way valve 30 and the first tube body 40 can be reduced.

[0089] like Figure 7 , Figure 8 As shown, in some embodiments, an annular first hook 31511 is provided on the outer periphery of the first convex portion 3151. Such a configuration can facilitate the first hook 31511 to enhance the connection strength, connection tightness, and connection reliability between the first convex portion 3151 and the first tube body 40, thereby reducing the risk of loosening, displacement, and detachment between the first convex portion 3151 and the first tube body 40, improving the sealing between the first convex portion 3151 and the first tube body 40, and reducing the risk of gas leakage from the gap between the first convex portion 3151 and the first tube body 40.

[0090] See also Figure 6 , Figure 7 , Figure 8 In some embodiments of the present application, a second protrusion 3161 is provided on one side of the valve body 31 close to the second tube body 50 , and the second protrusion 3161 is penetrated by an air outlet hole 313 , and the second protrusion 3161 is inserted into the second tube body 50 .

[0091] It should be noted that a second convex portion 3161 is provided on one side of the valve body 31 close to the second tube body 50. Figure 7 As shown, in some embodiments, the valve body 31 includes a first valve seat 315 and a second valve seat 316 , and the second protrusion 3161 is disposed on a side of the second valve seat 316 close to the second tube 50 .

[0092] The second convex portion 3161 is arranged to protrude outward from the valve body 31, and the second convex portion 3161 is inserted into the second tube body 50. The second convex portion 3161 is provided with an air outlet hole 313, and the air outlet hole 313 passes through from the end surface of the second convex portion 3161 close to the second tube body 50 to the accommodating cavity 311. When the second convex portion 3161 is inserted into the second tube body 50, the air outlet hole 313 can communicate the accommodating cavity 311 with the inner space of the second tube body 50.

[0093] By adopting the above solution, by providing the second convex portion 3161 on the side of the valve body 31 close to the second tube body 50, and inserting the second convex portion 3161 into the second tube body 50, on the one hand, it is convenient to connect and assemble the one-way valve 30 and the second tube body 50, and the one-way valve 30 and the second tube body 50 can be connected closely, reliably and stably via the second convex portion 3161, and the risk of loosening, displacement and detachment between the one-way valve 30 and the second tube body 50 can be reduced. On the other hand, the contact area between the second convex portion 3161 and the second tube body 50 can be increased, and a good sealing effect can be formed between the second convex portion 3161 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 313 of the second convex portion 3161, and the risk of gas leakage from the connection between the one-way valve 30 and the second tube body 50 can be reduced.

[0094] like Figure 7 , Figure 8 As shown, in some embodiments, an annular second hook 31611 is provided on the outer periphery of the second convex portion 3161. Such a configuration can facilitate the second hook 31611 to enhance the connection strength, connection tightness, and connection reliability between the second convex portion 3161 and the second tube body 50, thereby reducing the risk of loosening, displacement, and detachment between the second convex portion 3161 and the second tube body 50, improving the sealing between the second convex portion 3161 and the second tube body 50, and reducing the risk of gas leakage from the gap between the second convex portion 3161 and the second tube body 50.

[0095] See also Figure 4 , Figure 5In some embodiments of the present application, the water tank assembly further includes a mounting seat 60 made of an elastic material, the mounting seat 60 is mounted on the top side of the water tank 10, and the air pump 20 is limitedly mounted on the mounting seat 60.

[0096] It should be noted that the mounting seat 60 is made of an elastic material (such as rubber, etc.), and the mounting seat 60 can play the role of limiting, fixing, shock absorbing, and protecting the air pump 20.

[0097] By adopting the above scheme, by limiting the air pump 20 and installing the mounting seat 60, and installing the mounting seat 60 on the top 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 top 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 60, 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 assembly 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.

[0098] like Figure 4 , Figure 5 As shown, in some embodiments, the mounting seat 60 is provided with a second limiting groove 61, and the air pump 20 is limitedly mounted in the second limiting groove 61. A limiting convex portion 62 is respectively provided on opposite sides of the second limiting groove 61, and the two limiting convex portions 62 are arranged opposite to each other, and the two limiting convex portions 62 are jointly tightly held on the side of the air pump 20 away from the limiting groove to limit the air pump 20 from leaving the limiting groove. In this way, the air pump 20 can be limited and wrapped in multiple directions through the second limiting groove 61 and the two limiting convex portions 62, so as to enhance the limiting, fixing, shock absorbing and protecting effects of the mounting seat 60 on the air pump 20.

[0099] See also Figure 2 , Figure 3 In some embodiments of the present application, the water tank assembly further includes a bracket 70 and a seepage cloth 80. The bracket 70 is disposed in the water tank 10 and fixed relative to the water tank 10. The seepage cloth 80 is installed on the bottom side of the bracket 70. The seepage cloth 80 covers the seepage hole 11.

[0100] It should be noted that the bracket 70 is disposed in the water tank 10. The bracket 70 can be connected to the water tank 10 (such as the bottom wall) by a fixed connection method (such as welding, bonding, etc.) or a detachable connection method (such as bolt connection, clamping, etc.) to be fixed relative to the water tank 10, that is, the installation position and installation state relative to the water tank 10 are stabilized.

[0101] The bottom side of the bracket 70 is installed with a water-permeable cloth 80, and the bracket 70 is used to support the water-permeable cloth 80 and stabilize the installation position and installation state of the water-permeable cloth 80, so that the water-permeable cloth 80 is stabilized between the bottom side of the bracket 70 and the bottom wall of the water tank 10. The water-permeable cloth 80 can be installed on the bottom side of the bracket 70 by, but not limited to, clamping, bonding, etc. The water-permeable cloth 80 extends through the water-permeable hole 11 and covers the water-permeable hole 11. Figure 3 As shown, in some embodiments, a plurality of water seepage holes 11 are formed through the bottom wall of the water tank 10 , and the water seepage cloth 80 extends through each of the water seepage holes 11 and covers each of the water seepage holes 11 .

[0102] By adopting the above scheme, the seepage cloth 80 can be supported and the installation position and installation state of the seepage cloth 80 can be stabilized by the bracket 70 fixed relative to the water tank 10, so that the seepage cloth 80 is stabilized between the bottom side of the bracket 70 and the bottom wall of the water tank 10, so that the seepage cloth 80 covers the seepage hole 11. Based on this, when the air pump 20 is started and the one-way valve 30 is in a conducting state, the seepage cloth 80 can play the role of "dispersing the cleaning liquid and diverting the flow", so that the flow rate of the cleaning liquid seeping from the seepage hole 11 can be balanced, and the effect of uniform water discharge can be achieved, thereby improving the performance and user experience of the water tank assembly and the cleaning robot. On the contrary, when the air pump 20 is turned off and the one-way valve 30 is in a closed state, the seepage cloth 80 can play a little sealing effect, thereby reducing the risk of water seepage from the seepage hole 11 when the water tank assembly is in a static state of the cleaning robot, and improving the performance, reliability and user experience of the water tank assembly and the cleaning robot.

[0103] See also Figure 3 In some embodiments of the present application, a protrusion 71 is provided at a position of the bracket 70 corresponding to the water seepage hole 11 , and the protrusion 71 presses against a corresponding portion of the water seepage cloth 80 .

[0104] It should be noted that a protrusion 71 is provided at a position of the bracket 70 corresponding to the water seepage hole 11 along the up-down direction z. The protrusion 71 is provided to protrude toward one side of the water seepage hole 11. The protrusion 71 can press the corresponding portion of the water seepage cloth 80 so that the portion of the water seepage cloth 80 is limited and fits into the corresponding water seepage hole 11. The shape of the protrusion 71 can be the same as the shape of the water seepage hole 11, or it can be different. The size of the protrusion 71 can be the same as or smaller than the size of the water seepage hole 11.

[0105] By adopting the above solution, the protrusion 71 can be provided at the position of the bracket 70 corresponding to the water seepage hole 11 along the up-down direction z, so that the protrusion 71 can press the part of the water seepage cloth 80 corresponding to the protrusion 71, so that the part of the water seepage cloth 80 can be limited and tightly fitted into the corresponding water seepage hole 11. Based on this, it is conducive to stabilizing the position of the water seepage cloth 80 relative to the water seepage hole 11, reducing the risk of displacement of the water seepage cloth 80 relative to the water seepage hole 11 under liquid scouring or other external forces, and promoting the water seepage cloth 80 to reliably and stably cover the water seepage hole 11, so that the water seepage cloth 80 can play the role of "diversion" and "sealing" for a long time and reliably.

[0106] See also Figure 1 , Figure 2 In some embodiments of the present application, the water tank assembly further includes a second cover 100 that is covered on the top side of the water tank 10. The second cover 100 can be used to hide and protect structures such as the air pump 20, the one-way valve 30, and the charging sheet 110. The second 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.

[0107] See also Figure 1 Some embodiments of the present application provide a cleaning robot, including a water tank assembly provided in an embodiment of the present application.

[0108] 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 assembly detachably connected to the host, and the water tank assembly is the water tank assembly provided in the embodiment of the present application.

[0109] By adopting the above solution, the cleaning robot can improve its performance, reliability and user experience by applying the water tank assembly provided in the embodiment of the present application.

[0110] 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 assembly, characterized in that: The water tank assembly comprises: A water tank, wherein a water seepage hole is provided on the bottom side of the water tank, and an air injection hole is provided on the top side of the water tank; An air pump is arranged on the top side of the water tank; A one-way valve is arranged on the top side of the water tank, and the one-way valve is connected to the air pump through a first tube body, and is connected to the air injection hole through a second tube body; the one-way valve has a relatively closed state and a conducting state, and the one-way valve isolates the first tube body from the second tube body in the closed state, and conducts one-way flow from the first tube body to the second tube body in the conducting state; the one-way valve is used to switch to the closed state when the air pump is turned off.

2. The water tank assembly according to claim 1, characterized in that: The one-way valve comprises a valve body, an elastic member, and a movable member. The valve body is provided with a containing cavity, an air inlet hole, and an air outlet hole. The air inlet hole is provided on a side of the valve body close to the first tube body and communicates with the containing cavity and the first tube body. The air outlet hole is provided on a side of the valve body close to the second tube body and communicates with the containing cavity and the second tube body. The elastic member and the movable member are accommodated in the accommodating cavity, one end of the elastic member is connected to the inner wall of the accommodating cavity close to the second tube body, and the other end of the elastic member is connected to the movable member; In the closed state of the one-way valve, the movable member is sealed at the air inlet hole under the elastic force of the elastic member.

3. The water tank assembly according to claim 2, characterized in that: The movable part is a sphere.

4. The water tank assembly according to claim 3, characterized in that: A first ring portion is protruding from the inner wall of the accommodating cavity close to the first tube body, and the first ring portion is arranged around the edge of the air inlet hole. A hemispherical groove is provided on one side of the first ring portion close to the movable part, and the groove is used for partially embedding the movable part in the closed state of the one-way valve.

5. The water tank assembly according to claim 2, characterized in that: The one-way valve further includes a sealing ring, which is disposed in the accommodating cavity and is limitedly installed on a side of the accommodating cavity close to the first tube body. The sealing ring is disposed around the outer periphery of the air inlet hole.

6. The water tank assembly according to claim 2, characterized in that: The valve body comprises a first valve seat and a second valve seat, the first valve seat is provided with the air inlet hole, the second valve seat is provided with the air outlet hole, the first valve seat and the second valve seat are separately connected and jointly enclosed to form the accommodating cavity; And / or, a first convex portion is provided on a side of the valve body close to the first tube body, the air inlet hole passes through the first convex portion, and the first convex portion is inserted into the first tube body; And / or, a second convex portion is provided on a side of the valve body close to the second tube body, the air outlet hole passes through the second convex portion, and the second convex portion is inserted into the second tube body.

7. The water tank assembly according to any one of claims 1 to 6, characterized in that: The water tank assembly also includes a mounting seat made of elastic material, the mounting seat is installed on the top side of the water tank, and the air pump is limitedly installed on the mounting seat.

8. The water tank assembly according to any one of claims 1 to 6, characterized in that: The water tank assembly also includes a bracket and a water seepage cloth, wherein the bracket is arranged in the water tank and fixed relative to the water tank, and the water seepage cloth is installed on the bottom side of the bracket, and the water seepage cloth covers the water seepage hole.

9. The water tank assembly according to claim 8, characterized in that: The bracket is provided with a protrusion at a position corresponding to the water seepage hole, and the protrusion presses the corresponding part of the water seepage cloth.

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

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