CN215738753U - Water tank assembly and cleaning equipment - Google Patents

Abstract

The application relates to the technical field of air conditioning, and provides a water tank assembly, which comprises a water tank, an air inlet valve, an exhaust valve and a water valve. The water tank is formed with water holding cavity, delivery port, air inlet and gas vent, and delivery port, air inlet and gas vent all communicate with water holding cavity. The air inlet valve is arranged at the air inlet and controls airflow to flow into the water containing cavity in a one-way mode. The exhaust valve is arranged at the exhaust port and controls airflow to flow out of the water containing cavity in a one-way mode. The air inlet valve only allows airflow to flow into the water containing cavity in one direction, and the air outlet valve only allows airflow to flow out of the water containing cavity in one direction. That is, the water flow in the water containing chamber cannot flow out of the water containing chamber through the intake valve and the exhaust valve. The air flow can not flow out of the water containing cavity through the air inlet valve and can not flow into the water containing cavity through the air outlet valve. The water valve is arranged at the water outlet and can open or close the water outlet. The air pressure in the water tank is well communicated with the external air pressure, and the air vent of the water tank is watertight.

Description

Water tank assembly and cleaning equipment

Technical Field

The application relates to the technical field of cleaning equipment, in particular to a water tank assembly and cleaning equipment.

Background

Household life and labor are indispensable parts of daily life, and the household of mopping the floor occupies the main time of the household life. At present, a floor mopping machine with a water spraying floor mopping function becomes one of the necessary cleaning electric appliances for many families. The clean water tank is used as an indispensable component of the floor mopping machine and provides a clean water source for the floor mopping machine. Be equipped with intercommunication water tank inner space and atmospheric blow vent on the water tank, the blow vent is used for balanced water tank internal gas pressure and atmospheric pressure, and the rivers in the water tank leak through the blow vent easily.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present disclosure provide a water tank assembly and a cleaning device, in which air pressure inside the water tank is well communicated with external air pressure and a vent of the water tank is watertight.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

an aspect of an embodiment of the present application provides a water tank, including:

the water tank is provided with a water containing cavity, a water outlet, an air inlet and an air outlet, and the water outlet, the air inlet and the air outlet are all communicated with the water containing cavity;

the air inlet valve is arranged at the air inlet and controls airflow to flow into the water containing cavity in a one-way mode;

the exhaust valve is arranged at the exhaust port and controls airflow to flow out of the water containing cavity in a one-way manner;

the water valve is arranged at the water outlet and can be opened or closed.

In some embodiments, the air inlet valve is arranged in the air inlet in a penetrating way and seals the air inlet, the air inlet valve comprises a first opening end and a first elastic closed end, the first opening end faces the outside of the water tank and is communicated with the atmosphere, and the first elastic closed end faces the water containing cavity;

when a first pressure difference between atmospheric pressure and the air pressure of the water containing cavity is smaller than or equal to a first preset value, the first elastic closed end is closed to isolate the water containing cavity from the atmosphere; when the first pressure difference is larger than the first preset value, the first elastic closed end is opened, so that the air flow flows into the water containing cavity.

In some embodiments, a portion of the outer peripheral surface of the intake valve is recessed to form a recess between the first resilient closed end and the first open end, the first resilient closed end being capable of passing through the intake port such that the recess is disposed through and seals the intake port.

In some embodiments, the vent valve is disposed through and seals the vent port, the vent valve including a second open end facing into the water containing cavity and communicating with the water containing cavity, and a second resilient closed end facing the atmosphere;

when a second pressure difference between the air pressure of the water containing cavity and the atmospheric pressure is smaller than or equal to a second preset value, the second elastic closed end is closed to isolate the water containing cavity from the atmosphere; when the second pressure difference is larger than the second preset value, the second elastic closed end is opened, so that the airflow flows out of the water containing cavity.

In some embodiments, a portion of the outer peripheral surface of the vent valve is recessed to form a neck portion, the neck portion being located between the second resiliently closed end and the second open end, the second open end being capable of passing through the vent port such that the neck portion is disposed through and seals the vent port.

In some embodiments, the air inlet and the air outlet are both located at an upper portion of a peripheral sidewall of the water tank, and the water outlet is located at a bottom portion of the water tank.

In some embodiments, a portion of an outer surface of the tank is recessed to form a recessed area, and the air inlet and the air outlet are both located in the recessed area.

In some embodiments, the water tank includes box and case lid, the delivery port the air inlet the gas vent with hold the water cavity and all form in on the box, the case lid is used for the lid to close or open the delivery port, the case lid is formed with dodges the mouth, the water valve set up in just be located in the case lid dodge mouthful department, rivers can pass through the water valve with dodge mouthful outflow hold the water cavity.

In some embodiments, the water tank assembly includes a filter element disposed in the tank cover, a filter cavity communicated with the water containing cavity is formed in the filter element, and the water inlet end of the water valve is located in the filter cavity.

Another aspect of the embodiments of the present application provides a cleaning apparatus, including:

the water tank assembly of any one of the above;

and the water pump is used for driving water to flow through the water valve and flow out of the water containing cavity.

The water tank that this application embodiment provided, on the one hand, under the condition that needs rivers outflow water holding chamber, the water valve is in the open mode, along with rivers outflow water holding chamber gradually, the atmospheric pressure in water holding chamber reduces gradually, external air current can be through the one-way inflow water holding intracavity of admission valve, in order to maintain the atmospheric pressure and the atmospheric pressure balance in water holding chamber, so that rivers can continuously flow water holding chamber, avoid reducing along with the intracavity water yield of water holding, the intracavity air pressure of water holding reduces, rivers are difficult to flow or water tank compression deformation scheduling problem. On the other hand, through setting up the atmospheric pressure and the atmospheric pressure that admit air valve and air outlet valve balance appearance water cavity, not only can guarantee that rivers can normally flow and hold the water cavity, can also avoid the water tank can not lead to water tank expansion deformation or compression deformation because external environment is overheated or the subcooling. The water tank has good leakproofness, and the user can use the water tank under arbitrary angle and not lead to leaking.

Drawings

FIG. 1 is a schematic view of a water tank assembly according to an embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional view of a water tank assembly in an embodiment of the present application, schematically illustrating the structure of the inlet and outlet valves;

FIG. 3 is an enlarged view of the structure shown in FIG. 2 at A;

FIG. 4 is another partial cross-sectional view of a water tank assembly in an embodiment of the present application;

FIG. 5 is an enlarged view at B of the structure shown in FIG. 4;

fig. 6 is a schematic structural diagram of a cleaning apparatus in an embodiment of the present application.

Description of reference numerals:

a cleaning device 1000; a water tank assembly 100; a body 200; a water tank 1; a water containing cavity 1 a; a water outlet 1 b; an air inlet 1 c; an exhaust port 1 d; a recessed area 1 e; a case 11; a connecting sleeve 111; a case cover 12; a grip region 13; anti-slip ribs 131; a support surface 14; an avoidance port 12 a; an intake valve 2; a recessed portion 2 a; a first open end 21; a first resilient closed end 22; a first guide surface 23; an exhaust valve 3; a neck portion 3 a; a second open end 31; a second resilient closed end 32; a second guide surface 33; a water valve 4; a water inlet end 41; a water outlet end 42; a filter member 5; a filter chamber 5 a; and a seal 6.

Detailed Description

It should be noted that the various embodiments/implementations provided in this application can be combined with each other without contradiction. The detailed description in the specific embodiments should be understood as an illustration of the spirit of the application and not as an undue limitation of the application.

In the description of the present application, the orientation or positional relationship of the terms "upper", "lower" is an orientation or positional relationship based on the normal operation of the water tank of fig. 1. The orientation or positional relationship of the terms "inner" and "outer" is based on the orientation or positional relationship of the water tank of fig. 2. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. The term "first/second" merely distinguishes between different objects and does not denote the same or a relationship between the two.

Referring to fig. 1, 2 and 4, in one aspect, the present disclosure provides a water tank assembly 100, which includes a water tank 1, an air inlet valve 2, an air outlet valve 3 and a water valve 4. The water tank 1 is formed with water containing cavity 1a, delivery port 1b, air inlet 1c and gas vent 1d, and delivery port 1b, air inlet 1c and gas vent 1d all communicate with water containing cavity 1 a. The air inlet valve 2 is arranged at the air inlet 1c, and the air inlet valve 2 controls airflow to flow into the water containing cavity 1a in a single direction. The exhaust valve 3 is arranged at the exhaust port 1d, and the exhaust valve 3 controls airflow to flow out of the water containing cavity 1a in a one-way mode. The air inlet valve 2 only allows airflow to flow into the water containing cavity 1a in one way, and the air outlet valve 3 only allows airflow to flow out of the water containing cavity 1a in one way. That is, the water flow in the water receiving chamber 1a cannot flow out of the water receiving chamber 1a through the intake valve 2 and the exhaust valve 3. The air flow cannot flow out of the water containing chamber 1a through the intake valve 2, and the air flow cannot flow into the water containing chamber 1a through the exhaust valve 3. The water valve 4 is arranged at the water outlet 1b, and the water valve 4 can open or close the water outlet 1 b.

The water tank 1 that the embodiment of the application provided, on the one hand, under the condition that needs rivers to flow out water holding chamber 1a, water valve 4 is in the open mode, along with rivers flow out water holding chamber 1a gradually, the atmospheric pressure of water holding chamber 1a reduces gradually, external air current can be through 2 one-way inflow water holding chamber 1a of admission valve, in order to maintain water holding chamber 1 a's atmospheric pressure and atmospheric pressure balanced, so that rivers can continuously flow out water holding chamber 1a, avoid reducing along with water holding chamber 1a internal water volume, the internal gas pressure of water holding chamber 1a reduces, rivers are difficult to flow or water tank 1 compression deformation scheduling problem. Under the condition that water flow does not need to flow out of the water containing cavity 1a, the water valve 4 is in a closed state, the water flow does not flow out of the water containing cavity 1a through the water valve 4 any more, and the air inlet valve 2 and the air outlet valve 3 only allow the air flow to flow in a single direction, so that the water liquid in the water containing cavity 1a cannot flow through the air inlet valve 2 and the air outlet valve 3, and the water tank 1 cannot leak water. On the other hand, when the air pressure of the water containing cavity 1a is too high, for example, the water tank assembly 100 is in a high temperature environment, the air in the water containing cavity 1a is heated to expand in volume, the air pressure of the water containing cavity 1a is increased, and the airflow of the water containing cavity 1a flows out to the outside through the exhaust valve 3, so as to maintain the balance between the air pressure of the water containing cavity 1a and the atmospheric pressure, and avoid the expansion deformation of the water tank 1; when the ambient temperature is reduced or normal temperature is recovered, the air flow can flow into the water containing cavity 1a in one way through the air inlet valve 2. So, through setting up admission valve 2 and the balanced atmospheric pressure and the atmospheric pressure who holds water cavity 1a of air outlet valve, not only can guarantee that rivers can normally flow and hold water cavity 1a, can also avoid water tank 1 can not lead to water tank 1 expansion deformation or compression deformation because external environment is overheated or the subcooling. The water tank 1 has good sealability and a user can use the water tank 1 at any angle without causing water leakage.

In one embodiment, referring to fig. 2 and 3, the air intake valve 2 is disposed through the air inlet 1c and seals the air inlet 1c, the air intake valve 2 includes a first open end 21 and a first elastic closed end 22, the first open end 21 faces the outside of the water tank 1 and is communicated with the atmosphere, and the first elastic closed end 22 faces the water containing cavity 1 a. When a first pressure difference between the atmospheric pressure and the air pressure of the water containing cavity 1a is smaller than or equal to a first preset value, the first elastic closing end 22 is closed to isolate the water containing cavity 1a from the atmosphere; when the first pressure difference is greater than the first preset value, the first elastic closed end 22 is opened to allow the air flow to flow into the water containing cavity 1 a.

That is, the first elastic closing end 22 has elasticity, and the elastic force of the first elastic closing end 22 itself can keep the first elastic closing end 22 closed in a free state. By free, it is meant that the first resilient closed end 22 is subjected to only gravitational forces and not to other external forces, such as squeezing forces, stretching forces, and the like. The outer peripheral surface of the intake valve 2 abuts against the inner peripheral surface of the intake port 1c to seal the intake port 1c, and air leakage or water leakage from the gap between the outer peripheral surface of the intake valve 2 and the inner peripheral surface of the intake port 1c is avoided.

The air intake valve 2 has a simple structure, when the atmospheric pressure is greater than the air pressure in the water containing cavity 1a, the atmospheric air will generate a first pressure from outside to inside relative to the water containing cavity 1a, when the first pressure difference is greater than a first preset value, the first pressure will overcome the elastic force of the first elastic closed end 22 keeping closed, so that the first elastic closed end 22 opens, and the atmospheric air flows into the water containing cavity 1a through the opened first elastic closed end 22 and the first open end 21.

The first flexible closing end 22 is not limited in structural shape, and for example, referring to fig. 3, the first flexible closing end 22 may have a duckbill-shaped structure with a straight line-shaped opening. The first elastic closed end 22 is in a free state, the linear opening is closed under the elastic action of the first elastic closed end, the linear opening is opened and gradually increased along with the atmospheric pressure which is gradually higher than the air pressure of the water containing cavity 1a, and air flow can enter the water containing cavity 1a through the linear opening.

It should be noted that the first preset value can be determined according to the elastic force of the first elastic closing end 22 itself. The first preset value may be a positive integer, for example, the first preset value is zero, and so on.

In one embodiment, the intake valve 2 is an integrally formed structure. Thus, the air inlet valve 2 has good structural strength and low manufacturing cost.

The material of the intake valve 2 is not limited, and in an exemplary embodiment, the intake valve 2 is made of elastic rubber or plastic. In this way, the intake valve 2 can maintain its shape.

In one embodiment, referring to fig. 2 and 3, a portion of the outer peripheral surface of the intake valve 2 is recessed to form a recessed portion 2a, the recessed portion 2a is located between the first elastic closed end 22 and the first open end 21, and the first elastic closed end 22 can pass through the intake port 1c, so that the recessed portion 2a is disposed in the intake port 1c and seals the intake port 1 c. The outer peripheral surface of the recessed portion 2a abuts against the inner peripheral surface of the intake port 1c to seal the intake port 1 c. The size of the position around depressed part 2a is greater than the size of air inlet 1c, and the position around depressed part 2a can restrict depressed part 2a and deviate from air inlet 1c, plays limiting displacement, and the admission valve 2 of being convenient for wears to locate in air inlet 1c steadily, and admission valve 2 is difficult for following air inlet 1c slippage.

In one embodiment, referring to fig. 2 and 3, the outer peripheral surface of the intake valve 2 is formed with a first guide surface 23, the first guide surface 23 is located between the first elastic closing end 22 and the recess 2a, and the recess 2a can penetrate into the intake port 1c through the guide surface. The provision of the first guide surface 23 facilitates the assembly of the intake valve 2 to the intake port 1c, and the intake valve 2 can be inserted into the intake port 1c more smoothly from the outside to the inside.

The shape of the first guide surface 23 can be adapted to the contour shape of the intake port 1c to improve the fit of the intake valve 2 to the intake port 1 c. In an exemplary embodiment, referring to fig. 3, the air inlet 1c is circular, the first guiding surface 23 is a ring-shaped ring surface, the outer diameter of the first guiding surface 23 gradually increases from a side near the first elastic closed end 22 to a side near the recess 2a, and the recess 2a can penetrate into the air inlet 1c under the guiding action of the first guiding surface 23.

In one embodiment, referring to fig. 2 and 3, the exhaust valve 3 is disposed through the exhaust port 1d and seals the exhaust port 1d, the exhaust valve 3 includes a second open end 31 and a second elastic closed end 32, the second open end 31 faces the water containing cavity 1a and is communicated with the water containing cavity 1a, and the second elastic closed end 32 faces the atmosphere.

When a second pressure difference between the air pressure of the water containing cavity 1a and the atmospheric pressure is smaller than or equal to a second preset value, the second elastic closing end 32 is closed to isolate the water containing cavity 1a from the atmosphere; when the second pressure difference is greater than the second preset value, the second elastic closed end 32 is opened to allow the air flow to flow out of the water containing cavity 1 a.

That is, the second elastic closing end 32 has elasticity, and the elastic force of the second elastic closing end 32 itself can keep the second elastic closing end 32 closed in a free state. By free, it is meant that the first resilient closed end 22 is subjected to only gravitational forces and not to other external forces, such as squeezing forces, stretching forces, and the like. The outer peripheral surface of the exhaust valve 3 abuts against the inner peripheral surface of the exhaust port 1d to seal the exhaust port 1d, and leakage of air or water from the gap between the outer peripheral surface of the exhaust valve 3 and the inner peripheral surface of the exhaust port 1d is avoided.

The exhaust valve 3 has a simple structure, when the atmospheric pressure is less than the atmospheric pressure in the water containing cavity 1a, the gas in the water containing cavity 1a will generate a second pressure from inside to outside with respect to the atmospheric pressure, and when the second pressure difference is greater than a second preset value, the second pressure will overcome the elastic force of the second elastic closing end 32 keeping closed, so that the second elastic closing end 32 is opened, and the gas in the water containing cavity 1a flows into the atmospheric pressure through the opened second elastic closing end 32 and the second opening end 31.

The shape of the second flexible closed end 32 is not limited, and for example, referring to fig. 3, the second flexible closed end 32 may have a duckbill shape with a straight line shape. The second elastic closed end 32 is in a free state, the linear opening is closed under the elastic action of the second elastic closed end, and the linear opening is opened and gradually increased along with the fact that the air pressure of the water containing cavity 1a is gradually higher than the atmospheric pressure, so that air flow can enter the atmosphere through the linear opening.

It should be noted that the second preset value can be determined according to the elastic force of the second elastic closing end 32 itself. The second preset value may be a positive integer, e.g., the second preset value is zero, etc.

In one embodiment, the exhaust valve 3 is an integrally formed structure. Therefore, the exhaust valve 3 has good structural strength and low manufacturing cost.

The material of the exhaust valve 3 is not limited, and in an exemplary embodiment, the exhaust valve 3 is made of elastic rubber or plastic. In this way, the exhaust valve 3 can maintain its own form well.

In one embodiment, referring to fig. 2 and 3, a portion of the outer peripheral surface of the exhaust valve 3 is recessed to form a neck portion 3a, the neck portion 3a is located between the second elastic closed end 32 and the second open end 31, and the second open end 31 can pass through the exhaust port 1d, so that the neck portion 3a is inserted into the exhaust port 1d and seals the exhaust port 1 d. The size at position around neck 3a is greater than the size of gas vent 1d, and the position can restrict neck 3a around neck 3a and deviate from gas vent 1d, plays limiting displacement, and the discharge valve 3 of being convenient for wears to locate in gas vent 1d firmly, and discharge valve 3 is difficult for following gas vent 1d slippage.

The outer peripheral surface of the discharge valve 3 is formed with a second guide surface 33, the second guide surface 33 being located between the second elastic closed end 32 and the neck portion 3a, the neck portion 3a being capable of penetrating into the intake port 1c through the second guide surface 33. The provision of the second guide surface 33 facilitates the assembly of the exhaust valve 3 to the exhaust port 1d, and the exhaust valve 3 can be inserted into the exhaust port 1d more smoothly from the outside to the inside.

The shape of the second guide surface 33 can be adaptively matched with the contour shape of the exhaust port 1d to improve the fit of the exhaust valve 3 with the exhaust port 1 d. In an exemplary embodiment, referring to fig. 3, the exhaust port 1d is circular, the second guiding surface 33 is a ring-shaped annular surface, the outer diameter of the second guiding surface 33 gradually increases from a side near the second opening end 31 to a side near the neck portion 3a, and the neck portion 3a can penetrate into the exhaust port 1d under the guiding action of the second guiding surface 33.

In one embodiment, referring to fig. 1 and 4, the air inlet 1c and the air outlet 1d are both located at the upper portion of the peripheral sidewall of the water tank 1, and the water outlet 1b is located at the bottom of the water tank 1. When the water tank 1 is in normal use, the top of the water tank 1 faces the head of a user, and the lower part of the water tank 1 is required to be fixedly installed with the water tank 1. On the one hand, the user is prevented from directly observing or mistakenly touching the air inlet valve 2 and the air outlet valve 3, and the safety and the attractiveness are improved. On the other hand, the water in the water containing cavity 1a is not easy to contact the air inlet 1c and the air outlet 1d, and the air inlet valve 2 and the air outlet valve 3 can keep contacting with the air in the water containing cavity 1a, so that the function of realizing one-way control of air flow circulation is ensured, and smooth air flow circulation between the water containing cavity 1a and the atmosphere is facilitated. On the other hand, the water flow in the water containing cavity 1a flows out of the water containing cavity 1a under the action of gravity. Can smoothly flow out of the water outlet 1b from top to bottom.

The bottom refers to a portion of the water tank 1 that faces the ground when the water tank 1 is in normal use. The top is the position of the water tank 1 facing the ceiling when the water tank 1 is in normal use.

In one embodiment, referring to fig. 1, a portion of the outer surface of the water tank 1 is recessed to form a recessed area 1e, and the air inlet 1c and the air outlet 1d are located in the recessed area 1 e. In this way, the first opening end 21 and the second elastic closing end 32 are prevented from protruding from the outer surface of the water tank 1, and the water tank assembly 100 is more compact, thereby further preventing the air intake valve 2 and the air exhaust valve 3 from being touched by mistake.

In one embodiment, referring to fig. 1, an inwardly recessed holding area 13 is further formed on the outer surface of the water tank 1. The grip area 13 is used for a user to hold the water reservoir 1 in order to lift the water reservoir 1.

In one embodiment, referring to fig. 1, the holding area 13 is formed with anti-slip ribs 131. Thus, the grip region 13 has a high anti-slip property, which further facilitates the user to hold the grip region 13 to lift the water tank 1.

In one embodiment, referring to fig. 4 and 5, the water tank 1 includes a tank body 11 and a tank cover 12. The water outlet 1b, the air inlet 1c, the air outlet 1d and the water containing cavity 1a are formed on the box body 11. The box cover 12 is used for covering or opening the water outlet 1b, the box cover 12 is provided with an avoiding opening 12a, the water valve 4 is arranged in the box cover 12 and is positioned at the avoiding opening 12a, and water flow can flow out of the water containing cavity 1a through the water valve 4 and the avoiding opening 12 a. By the design, when water needs to be added into the water supply tank 1, the tank cover 12 is opened, and water flow can directly enter the water containing cavity 1a through the water outlet 1b without being interfered by the water valve 4. When the water is added, the water outlet 1b is covered by the box cover 12, and the water valve 4 can be driven to be opened or closed through the avoiding opening 12a by a thimble or other structures.

In one embodiment, referring to fig. 4, a planar support surface 14 is formed on the top of the water tank 1. The support surface 14 is used for inverting the water tank 1. The support surface 14 provides better stability of the water tank 1 when it is used upside down. For example, by supporting the support surface 14 on the ground or other support surface, the water tank 1 is placed upside down. For example, when water is needed, the water tank 1 can be filled with water by detaching the tank cover 12 and supporting the supporting surface 14 on the supporting surface.

In one embodiment, referring to fig. 4 and 5, the water tank assembly 100 includes a filter element 5 disposed in the tank cover 12, a filter cavity 5a communicating with the water containing cavity 1a is formed in the filter element 5, and the water inlet end 41 of the water valve 4 is located in the filter cavity 5 a. The water flow in the filter cavity 5a is filtered water, so that impurities in the water containing cavity 1a are prevented from entering the water valve 4.

The structural shape of the filtering member 5 is not limited, for example, referring to fig. 5, the filtering member 5 includes an annular plate and a filtering plate, two sides of the annular plate are open, the filtering plate closes one opening of the annular plate, the inner wall surface of the box cover 12 closes the other opening of the annular plate, the inner wall surfaces of the annular plate, the filtering plate and the box cover 12 jointly enclose to form a filtering chamber 5a, the water inlet end 41 of the water valve 4 extends into the filtering chamber 5a, and the filtering plate is of a porous plate-shaped structure. The water flow in the water containing cavity 1a enters the filter cavity 5a after being filtered by the filter plate.

In an exemplary embodiment, referring to fig. 4 and 5, the water outlet end 42 of the water valve 4 is located at the avoidance port 12a, the box cover 12 is a cylindrical structure with two open ends, and the lower end of the box cover 12 is open to the avoidance port 12 a. A connecting sleeve 111 extending outward is formed at the water outlet 1b of the box body 11, and the inner peripheral wall of the box cover 12 is sleeved on the outer peripheral wall of the connecting sleeve 111. The peripheral wall of case lid 12 is overlapped and is equipped with sealing member 6 to guarantee the leakproofness of water outlet 1b when water tank 1 is worked.

Referring to fig. 6, another aspect of the present embodiment provides a cleaning device, the cleaning device 1000 includes the water tank assembly 100 of any of the above embodiments and a water pump for driving water to flow out of the water containing cavity 1a through the water valve 4.

In one embodiment, referring to fig. 6, the cleaning apparatus 1000 includes a body 200. The body 200 is formed with a receiving space having a pick-and-place opening, at least a portion of the water tank 1 is received in the receiving space, and the pick-and-place opening is used for picking and placing the water tank assembly 100. The pick-and-place opening facilitates the removal of the water tank assembly 100 from the body 200 for adding cleaning water. After the water tank 1 stores water, the water tank is placed into the accommodating space through the taking and placing opening. The receiving space enables the water tank assembly 100 to be stably installed, and the structure of the cleaning apparatus 1000 is more compact.

In one embodiment, referring to fig. 6, the access opening is formed at the top of the body 200. In this manner, the user is facilitated to pick and place the tank assembly 100.

In an embodiment, the water valve 4 may be a one-way valve, and the cleaning apparatus 1000 includes a thimble, and the thimble can push the water valve 4 open after being avoided, so as to open the water outlet 1 b. When the water tank 1 is placed in the accommodating space, the thimble pushes the water valve 4 to open the water outlet 1b, and the water pump drives water flow to flow out of the water accommodating cavity 1 a. When the water tank assembly 100 is not placed on the machine body 200, the water valve 4 is reset to close the water outlet 1 b.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A water tank assembly, comprising:

the water tank is provided with a water containing cavity, a water outlet, an air inlet and an air outlet, and the water outlet, the air inlet and the air outlet are all communicated with the water containing cavity;

the air inlet valve is arranged at the air inlet and controls airflow to flow into the water containing cavity in a one-way mode;

the exhaust valve is arranged at the exhaust port and controls airflow to flow out of the water containing cavity in a one-way manner;

the water valve is arranged at the water outlet and can be opened or closed.

2. The water tank assembly of claim 1, wherein said air intake valve is disposed through and seals said air intake port, said air intake valve including a first open end facing out of said water tank and communicating with atmosphere, and a first resilient closed end facing towards said water containing cavity;

when a first pressure difference between atmospheric pressure and the air pressure of the water containing cavity is smaller than or equal to a first preset value, the first elastic closed end is closed to isolate the water containing cavity from the atmosphere; when the first pressure difference is larger than the first preset value, the first elastic closed end is opened, so that the air flow flows into the water containing cavity.

3. The water tank assembly of claim 2, wherein a portion of an outer peripheral surface of said air intake valve is recessed to form a recess, said recess being located between said first resilient closed end and said first open end, said first resilient closed end being capable of passing through said air inlet such that said recess is disposed through and seals said air inlet.

4. The water tank assembly of claim 1, wherein said vent valve is disposed through and seals said vent opening, said vent valve including a second open end facing into and communicating with said water containing cavity and a second resilient closed end facing to atmosphere;

when a second pressure difference between the air pressure of the water containing cavity and the atmospheric pressure is smaller than or equal to a second preset value, the second elastic closed end is closed to isolate the water containing cavity from the atmosphere; when the second pressure difference is larger than the second preset value, the second elastic closed end is opened, so that the airflow flows out of the water containing cavity.

5. The water tank assembly of claim 4, wherein a portion of an outer peripheral surface of said vent valve is recessed to form a neck portion, said neck portion being located between said second resiliently closed end and said second open end, said second open end being capable of passing through said vent opening such that said neck portion is disposed through and seals said vent opening.

6. A cistern assembly as claimed in any one of claims 1 to 5, wherein the air inlet and the air outlet are both located at an upper portion of a peripheral side wall of the cistern, and the water outlet is located at a bottom portion of the cistern.

7. A cistern assembly as claimed in any one of claims 1 to 5, wherein part of the outer surface of the cistern is recessed to form a recessed region, the air inlet and the air outlet both being located in the recessed region.

8. The water tank assembly as claimed in any one of claims 1 to 5, wherein the water tank comprises a tank body and a tank cover, the water outlet, the air inlet, the air outlet and the water containing cavity are formed on the tank body, the tank cover is used for covering or opening the water outlet, an avoiding opening is formed on the tank cover, the water valve is arranged in the tank cover and located at the avoiding opening, and water flow can flow out of the water containing cavity through the water valve and the avoiding opening.

9. The water tank assembly of claim 8, wherein said water tank assembly includes a filter element disposed within said tank cap, said filter element having a filter cavity formed therein in communication with said water receiving cavity, said water valve having an inlet end positioned within said filter cavity.

10. A cleaning apparatus, comprising:

a cistern assembly as claimed in any one of claims 1 to 9;

and the water pump is used for driving water to flow through the water valve and flow out of the water containing cavity.

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