CN219782460U

CN219782460U - Water supply system, water tank and cleaning robot system

Info

Publication number: CN219782460U
Application number: CN202222944328.1U
Authority: CN
Inventors: 郭宇伟; 林伟劲; 严绍军; 段明; 许楚锐
Original assignee: Yunjing Intelligent Innovation Shenzhen Co ltd; Yunjing Intelligent Shenzhen Co Ltd
Current assignee: Yunjing Intelligent Innovation Shenzhen Co ltd; Yunjing Intelligent Shenzhen Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-10-03
Anticipated expiration: 2032-11-04

Abstract

The embodiment of the utility model discloses a water tank, a water supply system and a cleaning robot system, wherein the water tank is used for being connected between an external water source and a base station of cleaning equipment and comprises a tank body and a first switch assembly, a water inlet and a water outlet are arranged on the tank body, the first switch assembly is used for selectively cutting off or conducting a liquid flow channel between the tank body and the external water source, so that the liquid flow channel is kept conducting before the liquid level in the tank body reaches a first preset height, and the liquid flow channel is cut off after the liquid level in the tank body reaches the first preset height. The water tank can cut off and conduct a liquid flow channel between the water tank and an external water source as required, so that the water tank can be reserved with certain buffer water and is not full of water, the water pressure flowing out of the water tank is lower than the water pressure entering from the external water source, and low-pressure buffer water in the water tank can be used for supplying water to a base station, so that the risk of damage and water leakage of a water pipe and the base station due to overhigh water pressure is reduced.

Description

Water supply system, water tank and cleaning robot system

Technical Field

The embodiment of the utility model relates to the field of cleaning equipment, in particular to a water supply system, a water tank and a cleaning robot system.

Background

In recent years, with the improvement of living standard of people, household cleaning gradually enters an automatic and intelligent age, and the cleaning robot can liberate people from household cleaning work, so that the work load of people in household cleaning is effectively reduced, and the fatigue degree of people in the household cleaning process is relieved.

A cleaning tank for storing clean water is generally provided in a cleaning base station of the cleaning robot, and water in the cleaning tank is used for cleaning members of the cleaning robot. In daily life, the water source in the clean water tank of the base station usually adopts municipal supply tap water nearby, the water pressure of the tap water is high, if the tap water is directly connected to the base station through a water pipe to supply water, the water pipe and the base station are in a high-pressure state for a long time to generate water leakage, and even the water pipe is broken and the base station is damaged in severe cases.

Disclosure of Invention

In view of the defects in the prior art, the embodiment of the utility model provides a water supply system, a water tank and a cleaning robot system, which not only have the water leakage prevention capability, but also can effectively reduce the water supply pressure of a water source and avoid the phenomena of water pipe breakage, base station damage and the like.

In order to achieve the above object, the first aspect of the embodiment of the present utility model adopts the following technical solutions:

a water tank for connection between an external water source and a base station of a cleaning apparatus, the water tank comprising:

the box body is provided with a water inlet and a water outlet, the water inlet is used for being connected with the external water source, and the water outlet is used for being connected with the base station;

the first switch assembly is arranged on the box body and is used for selectively cutting off or conducting a liquid flow channel between the box body and an external water source, so that the liquid flow channel is kept conducting before the liquid level in the box body reaches a first preset height, and the liquid flow channel is cut off after the liquid level in the box body reaches the first preset height.

As one embodiment, the first switch assembly includes:

the valve component is used for controlling the opening and closing states of the water inlet;

the first floating piece can selectively operate the valve component along with the lifting of the liquid level in the box body, so that the valve component closes the water inlet when the liquid level in the box body reaches the first preset height.

As one embodiment, the water tank further includes:

the second switch assembly is used for cutting off a liquid flow channel between the water inlet and the water outlet when the liquid level in the box body reaches a second preset height; wherein the second preset height is higher than the first preset height.

As one embodiment, the box body comprises a first cavity and a second cavity, the first cavity and the second cavity are communicated with each other through a first through hole, and the water outlet is communicated with the second cavity;

the second switch component is arranged in the first cavity and is used for blocking the first through hole when the liquid level in the box body reaches a second preset height.

As one embodiment, the second switch assembly includes:

a second float member;

and the blocking piece is connected with the second floating piece and is used for blocking the first through hole under the driving of the second floating piece when the liquid level in the box body reaches a second preset height.

As one embodiment, the second floating member is connected with the blocking member through a connecting member;

the connecting piece is rotationally connected with the box body, and the blocking piece and the second floating piece are respectively positioned at two sides of the rotation center of the connecting piece; or the second floating piece is in sliding fit with the box body, and the connecting piece is used for driving the blocking piece to move towards the first through hole in the floating process of the second floating piece.

As one embodiment, the water tank further includes:

and the reset mechanism is used for recovering the communication between the water inlet and the water outlet.

As one implementation mode, the reset mechanism is arranged in the box body and at least partially stretches into the box body, and the reset mechanism is used for receiving preset external force to drive the second switch assembly to move so as to conduct the first through hole.

As one embodiment, the reset mechanism includes: the rod body and the limiting piece are positioned in the box body;

the box body is provided with a second through hole, and one end of the rod body is inserted into the box body through the second through hole;

the limiting piece is arranged on the outer wall of the rod body and used for limiting the rod body from falling out of the box body.

As one embodiment, the reset mechanism includes:

the sealing piece is arranged on the outer wall of the rod body and is used for being abutted with the inner wall of the box body to seal a gap between the rod body and the hole wall of the second through hole.

As one implementation mode, the reset mechanism further comprises an elastic piece sleeved on the rod body, and the elastic piece is arranged between the rod body and the box body, so that the limiting piece is elastically abutted to the inner surface of the box body.

As one embodiment, the water tank further includes:

an anti-siphon valve communicated with the water outlet; and/or the number of the groups of groups,

the water outlet pipe is arranged in the box body and connected with the water outlet, and the tail end of the water outlet pipe extends to the bottom of the box body.

As one embodiment, the water tank further includes:

the water outlet pipe is arranged in the box body and is connected with the water outlet;

and the second switch assembly is used for cutting off a liquid flow channel between the water outlet pipe and the water outlet when the liquid level in the box body reaches a second preset height.

As one embodiment, the water tank further comprises a filter element, the filter element is arranged at the upstream of the water outlet, and water in the tank flows out of the water outlet after being filtered by the filter element.

As one embodiment, the water tank further comprises a filter element arranged in the second cavity, the water inlet end of the filter element is communicated with the first through hole, and the water outlet end of the filter element is communicated with the second cavity;

the bottom plate of the box body is provided with a mounting hole, and the filter element is detachably connected to the box body through the mounting hole.

A second aspect of the embodiment of the present utility model provides a water supply system, including a base station and any of the above water tanks, where the water tank is used to connect to an external water source to buffer water from the external water source, and the water outlet is connected to the base station.

As one embodiment, the water supply system further comprises a pump body, wherein the pump body is connected with the water outlet and is arranged in the box body or outside the box body or in the base station so as to pump out the water buffered in the box body;

and/or the water tank is closer to the external water source relative to the base station;

and/or the water tank is arranged at the external water source.

A third aspect of the embodiment of the present utility model provides a cleaning robot system, including a cleaning robot, and any one of the above water supply systems, where the base station provides care for the cleaning robot.

The water tank provided by the embodiment of the utility model provides a water pressure buffer space, the switch component in the water tank can start external water source water supply when water is lacking in the water tank, and cut off the water supply of the external water source after the liquid level in the water tank reaches a preset height, so that certain buffer water can be reserved in the water tank, the water tank is not full of water, the water pressure flowing out of the water tank is lower than the water pressure entering from the external water source, the low-pressure buffer water in the water tank can be used for supplying water for a base station of cleaning equipment, the liquid level in the water tank is not higher than the preset height all the time, and damage and water leakage of a water pipe and the base station due to overhigh water pressure are avoided.

Drawings

FIGS. 1A-1D show four different water supply modes of a cleaning apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic view showing a structure of a water tank according to a first embodiment of the present utility model;

fig. 3 is a schematic view showing an internal structure of a water tank according to a first embodiment of the present utility model;

fig. 4 shows a schematic structural diagram of a water tank according to a second embodiment of the present utility model;

fig. 5 is a schematic view showing an internal structure of a water tank according to a second embodiment of the present utility model;

fig. 6 shows another usage state diagram of the water tank shown in fig. 5;

fig. 7 is a perspective view showing a view of the inside of the water tank shown in fig. 5;

fig. 8 is a perspective view showing another view of the inside of the water tank shown in fig. 5;

fig. 9 is a schematic view showing an internal structure of another water tank according to the second embodiment of the present utility model;

fig. 10 shows a schematic internal structure of a water tank according to a second embodiment of the present utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

In the present utility model, the terms "disposed," "provided," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The cleaning device according to the embodiment of the utility model can be a cleaning robot, a base station or a handheld cleaning device, and the like, wherein the base station refers to the cleaning device used together with the cleaning robot or the handheld cleaning device. Taking a base station as an example, in order to facilitate the use of a user, the base station is often matched with the cleaning robot to provide nursing for the cleaning robot. For example, the base station may be used to charge the cleaning robot, and when the power of the cleaning robot is less than a preset power threshold during cleaning, the cleaning robot may be moved to the base station to charge. For the cleaning robot, the base station can also clean the mopping piece (such as a mop), and after the mopping piece of the cleaning robot mops the floor, the mopping piece often becomes dirty and needs to be cleaned. For this purpose, the base station can be used for cleaning the mop of the cleaning robot. Specifically, the cleaning robot may be moved to the base station so that the cleaning mechanism on the base station automatically cleans the cleaning robot's mop. Besides the functions, the base station can also be used for maintaining and managing the cleaning robot, so that the cleaning robot can be controlled more intelligently in the process of executing the cleaning task, and the working intelligence of the robot is improved.

In order to realize cleaning of the cleaning robot's cleaning elements, the inside of the base station is provided with a waterway system, the waterway system can comprise a clear water tank, and water at an external water supply end can be connected through a water inlet of the clear water tank, so that the base station can automatically supplement water; the water of the clean water tank can be conveyed to the area needing water through the waterway channel, for example, when the cleaning of the cleaning piece is needed, the clean water of the clean water tank can be conveyed to the cleaning area, and the cleaning area is used for supplying water to the cleaning piece so as to clean the cleaning piece. The base station can perform maintenance and management such as mop washing and the like for the cleaning robot and can perform self-cleaning tasks, and the base station can perform self-cleaning on an internal cleaning area so as to clean stains accumulated in the cleaning area. The waterway system may further include a sewage tank, after the cleaning of the cleaning member is completed, sewage in the cleaning region may be transferred to the sewage tank, collected through the sewage tank, pumping operation may be performed by the sewage tank, sewage in the cleaning region may be sucked to the sewage tank, the sewage tank may function to collect sewage, and the sewage tank may be discharged to the outside through a drainage passage, for example, after the sewage amount of the sewage tank reaches a certain sewage amount threshold, a draining operation may be performed, and sewage in the sewage tank may be discharged to the outside.

In some embodiments, the clean water tank inside the base station can realize water inflow through the water pressure of an external water source, the external water source can be a municipal water source with a certain water pressure, for example, a tap in the home of a user, and meanwhile, an electromagnetic valve is also required to be arranged on an external pipeline between the external water source and the base station, and the functions of opening and closing a water supply channel, switching the water supply channel and the like are realized through the electromagnetic valve.

Considering the high cost of the electromagnetic valve, in one embodiment, the electromagnetic valve can be omitted, the waterway system leading to the base station is controlled in a pneumatic negative pressure pumping mode, and for this purpose, the water pressure of the water inlet pipeline of the base station needs to be reduced before the water enters the base station, so that the water inlet of the clean water tank is realized pneumatically. Based on this requirement, this embodiment provides a water tank, and this water tank is connected outside water source in order to buffer the water from outside water source, is equivalent to reducing municipal water source's water pressure through this water tank, and this water tank is connected to the basic station, and then can utilize the pump body to pump this water tank's water to the basic station. In particular, pneumatic negative pressure pumping can be realized to feed clean water. The water tank can be closer to an external water source relative to the base station, for example, the water tank can be directly connected to a faucet, a connecting pipeline is omitted between the water inlet of the water tank and the external water source, and water leakage or bursting due to overhigh water pressure of the connecting pipeline can be avoided. The water outlet of the water tank is connected to the base station through an external water inlet pipeline, so that the depressurized water is provided for the base station. Thus, the water in the water tank at the external water source can be pumped to the base station by a water pump or an air pump arranged close to or in the base station.

1A-1D, four different water supply modes of the cleaning apparatus according to the embodiment of the present utility model are schematically shown. As shown in fig. 1A, the water supply system includes a water tank 30 provided at a side of an external water source 10 and a base station 20 remote from the external water source 10, and high-pressure water (municipal water source water) injected from the external water source 10 is depressurized by the water tank 30, buffered in the water tank 30, and supplied to the base station 20; in fig. 1B, the water supply system further includes a pump body 1, where the pump body 1 is disposed in the water tank 30, and the pump body 1 can provide a certain pump pressure to pump the buffer water in the water tank 30 out of the water tank 30; in fig. 1C, the pump body 1 is provided on the water inlet line between the water tank 30 and the base station 20; in fig. 1D, the pump body 1 is provided in the base station 20, and is connected between the water intake pipe and the clean water tank as a part of the base station 20, and pumps water from the water tank 30 by using negative pressure at the end of the base station 20. The water supply system and the cleaning robot cooperatively operate, and the water supply system and the cleaning robot are used as main components of the cleaning robot system.

As shown in fig. 2, the present embodiment provides a water tank 30, which is used to provide buffer water between an external water source 10 and a base station 20 of a cleaning apparatus, and has functions of reducing pressure and preventing leakage of water. The water tank 30 mainly comprises a tank body 31 and a first switch assembly K1, wherein a water inlet 32 and a water outlet 33 are arranged on the tank body 31, the water inlet 32 is used for being connected with an external water source 10, and the water outlet 33 is used for being connected with a base station 20. The first switch assembly K1 is provided in the case 31 to selectively shut off or conduct a flow passage between the case 31 and the external water source 10. Before the liquid level in the tank 31 reaches the first preset height H1, the first switch assembly K1 keeps the flow channel in a conducting state, at this time, the tank 31 can be normally replenished with water, and after the liquid level in the tank 31 reaches the first preset height H1, the switch assembly cuts off the flow channel, so that water of the external water source 10 cannot enter the tank 31 again.

It should be noted that the switch assembly provided in the embodiment of the present utility model may be a mechanical switch assembly, such as a ball cock, and may automatically close the water inlet channel when the water level reaches the set water level. In other embodiments, the switch assembly may also be an electrically controlled valve, such as a solenoid valve, etc., and the tank 31 may be provided therein with a water level detecting assembly connected to the solenoid valve, and the solenoid valve is used to control the flow channel to be closed when the water level detected by the water level detecting assembly reaches a predetermined height.

The water tank of this embodiment provides the water pressure buffer space, and its inside first switch subassembly K1 can restrict the liquid level in the water tank in first preset height H1, can not continue to supply water for the water tank after the liquid level in the water tank reaches first preset height H1, consequently can make the water pressure of water tank keep under certain level, also can avoid the water in the water tank to fill and spill over.

In one embodiment, as shown in fig. 3, the first switch assembly K1 is configured to close the water inlet 32 after the liquid level in the tank 31 reaches the first preset height H1. Illustratively, the first switch assembly K1 includes a valve assembly 34 and a first float member 35, the valve assembly 34 is used for controlling the opening and closing state of the water inlet 32, for example, the valve assembly 34 may be a mechanical valve disposed in the water inlet 32, and the first float member 35 may selectively operate the valve assembly 34 along with the lifting of the liquid level in the tank 31, and change the working state of the valve assembly 34, so that the valve assembly 34 closes the water inlet 32 when the liquid level in the tank 31 reaches the first preset height H1.

For example, the first float member 35 may be disposed below the valve assembly 34, the valve assembly 34 being initially in an open state, and the water inlet 32 being closed by pushing the upper valve assembly 34 after the first float member 35 rises with the liquid level.

In one embodiment, the valve assembly 34 includes a valve provided at the water inlet 32, a trigger 341 for triggering the valve to close, and a first guide 342 extending in the height direction of the tank 31, and the first float 35 is movably sleeved on the first guide 342 to move along the first guide 342 under the buoyancy of water to selectively push the trigger 341 to close the valve. The trigger 341 may be a free end hinged at one end relative to the valve and extending downwardly at the other end, which may be located between the first float member 35 and the valve, the trigger 341 being urged upwardly when the first float member 35 floats, thereby urging the valve closed. For example, the middle of the trigger piece 341 may also be provided with a slot through which the first guide piece 342 passes, and the trigger piece 341 may be limited during the pivoting movement by means of the first guide piece 342. The first float member 35 may be spherical, cylindrical, etc., the shape of which is not limited thereto.

In addition, the water tank 30 may further include an anti-siphon valve 38, wherein the anti-siphon valve 38 is disposed in the tank body 31 and is communicated with the water outlet 33, the anti-siphon valve 38 is a normally closed one-way valve, and the opening direction is from the inside of the water tank 30 to the water outlet 33. In the initial state, the anti-siphon valve 38 is in the closed state, so that water outside the water tank 30 can be prevented from flowing back to the water tank 30 from the water outlet 33. The anti-siphon valve 38 may allow water flow to pass unidirectionally under the influence of water pressure. In other embodiments, anti-siphon valve 38 may also be located outside of tank 30.

In one embodiment, the water outlet pipe 37 is disposed in the tank 31 and connected to the water outlet 33, and the end of the water outlet pipe 37 extends to the bottom of the second cavity Q2, so that water can be normally supplied when the liquid level in the tank 31 is low. The tank may further comprise a filter element 36, the filter element 36 being arranged upstream of the water outlet 33, the water in the tank 31 being filtered by the filter element 36 and flowing out of the water outlet 33. For example, the filter element 36 is connected to the bottom end of the outlet pipe 37, and the bottom thereof may be fixed or supported to the bottom of the tank 31. The filter element 36 may comprise a hollow main body and a filter screen provided on an outer wall of the main body, and water entering through the water inlet 32 enters the main body through the filter screen of the filter element 36 and is supplied to the base station 20 through the water outlet pipe 37, the water outlet 33 and the water inlet pipeline in order from the main body. The filter element 36 can filter foreign matters in a water source, and can also purify water by placing a scale inhibitor, activated carbon, and the like in the main body of the filter element 36.

Because the water tank of this embodiment provides the water pressure buffering space, its inside is equipped with the floating piece that can switch the water inlet on and off state along with the liquid level is gone up and down automatically, when the liquid level is too high, the floating piece can cut off the supply of external water source under the buoyancy effect, and the floating piece descends along with it and communicates external water source automatically when the liquid level is too low, both can make the water pressure that flows out from the water tank lower than the water pressure that external water source got into, make the liquid level in the water tank can not be higher than the preset height all the time again, thereby can avoid water pipe and basic station to damage because of the water pressure is too high, also avoided the water in the water tank to spill over.

As shown in fig. 4 to 6, this embodiment illustrates another water tank 30, the switch assembly includes a first switch assembly K1 and a second switch assembly K2, the first switch assembly K1 is used for closing the water inlet 32 after the liquid level in the tank 31 reaches a first preset height H1, and the second switch assembly K2 is used for cutting off the flow channel between the water inlet 32 and the water outlet 33 when the liquid level in the tank 31 reaches a second preset height H2. The first preset height H1 and the second preset height H2 are lower than the inner surface of the tank 31, that is, the liquid surface is not filled with the water tank 30 when the first preset height H1 and the second preset height H2 are both set.

In this way, the liquid level in the tank 31 can be limited within the first preset height H1 by the first switch assembly K1, and the liquid level in the tank 31 can be limited within the second preset height H2 by the second switch assembly K2. When the first switch assembly K1 and the second switch assembly K2 are simultaneously arranged in the box 31, double guarantee can be achieved, so that water in the box 31 cannot exceed the specified height. For example, when the second preset height H2 is higher than the first preset height H1, the second switch assembly K2 may further ensure that the water in the tank 31 does not exceed the second preset height H2 when the first switch assembly K1 fails, thereby preventing the water in the tank 31 from overflowing.

As shown in fig. 5, in the present embodiment, the case 31 includes a first chamber Q1 and a second chamber Q2, the first chamber Q1 and the second chamber Q2 communicate with each other through a first through hole 301h, the water inlet 32 communicates with the first chamber Q1, and the water outlet 33 communicates with the second chamber Q2. The first switch component K1 and the second switch component K2 are both disposed in the first cavity Q1, and the second switch component K2 is configured to block the first through hole 301H when the liquid level in the tank 31 reaches the second preset height H2.

It will be appreciated that in other embodiments, only the first switch assembly K1 or only the second switch assembly K2 may be disposed in the housing 31, so as to achieve the function of cutting off the flow path between the external water source 10 and the water outlet 33 of the housing 31.

In one embodiment, the second switch assembly K2 includes a second floating member 300 and a blocking member 301a, where the second floating member 300 can be lifted up along with the rise of the liquid level in the tank 31, and the blocking member 301a is connected to the second floating member 300, and is configured to move under the driving of the second floating member 300 to block the first through hole 301H when the liquid level in the tank 31 reaches the second preset height H2, so as to cut off the flow channel between the first cavity Q1 and the second cavity Q2. When the first through hole 301H is blocked by the blocking member 301a, even if the external water source 10 is still filled with water from the water inlet 32 into the tank 31, the water can only enter the first chamber Q1, the second chamber Q2 is still maintained at the second preset height H2, and the pressure in the second chamber Q2 can be maintained at a low level.

Fig. 5 and 6 show the state where the second floating member 300 blocks the first through hole 301H and does not block the first through hole 301H, respectively, when the liquid level in the tank 31 is lower than the second preset height H2, the blocking member 301a is spaced from the first through hole 301H, the first chamber Q1 and the second chamber Q2 are communicated, and when the liquid level in the tank 31 reaches the second preset height H2, the blocking member 301a blocks the first through hole 301H, and the liquid level in the second chamber Q2 is not raised any more.

In the embodiment shown in fig. 5, the second floating member 300 is connected to the blocking member 301a through the connecting member 301b, the connecting member 301b is rotatably connected to the case 31, and the blocking member 301a and the second floating member 300 are respectively located at two sides of the rotation center of the connecting member 301b, so that the blocking member 301a is lowered during the process of raising the second floating member 300, and the blocking member 301a is moved toward the first through hole 301h under the driving of the connecting member 301 b. In order to reliably block the first through hole 301h, the moment arm from the rotation center of the connection member 301b to the second floating member 300 is larger than the moment arm thereof to the blocking member 301a, so that the force of the blocking member 301a acting on the first through hole 301h can be amplified.

When the first switch assembly K1 and the second switch assembly K2 are simultaneously arranged in the box 31 and the second preset height H2 is higher than the first preset height H1, under normal conditions, the external water source 10 is gradually lifted to the first preset height H1 when the liquid level is gradually raised to the first preset height H1, the first floating member 35 floats to push the trigger member 341, so that the valve assembly 34 is closed, the water inlet 32 cannot continue to feed liquid, and the liquid levels of the first cavity Q1 and the second cavity Q2 are maintained at the first preset height H1; when the first switching assembly K1 malfunctions, for example, when the first float member 35 is caught by the first guide member 342 and the trigger member 341 cannot be pushed, the water inlet 32 continues to feed the liquid, and when the liquid levels of the first and second chambers Q1 and Q2 rise to the second preset height H2, the second float member 300 rises so that the blocking member 301a moves toward the first through hole 301H and blocks the first through hole 301H, and the liquid levels of the first and second chambers Q1 and Q2 are maintained at the second preset height H2.

In some embodiments, the case 31 may include a partition plate 301, and the first through hole 301h is formed in the partition plate 301, and the partition plate 301 divides a space within the case 31 into a first chamber Q1 and a second chamber Q2. Illustratively, as shown in fig. 5, the partition board 301 includes a side board 3011 and a baffle 3012, the side board 3011 extends along the height direction of the box 31, the baffle 3012, the side board 3011 and the box 31 enclose a first cavity Q1, and a first through hole 301h is opened on the baffle 3012. The baffle 3012 may be disposed parallel to the bottom surface of the case 31, and the side plates 3011 may be perpendicular to the baffle 3012. Here, the partition plate 301 is only a plate-like structure formed between the top and side walls of the case 31, and in other embodiments, the partition plate 301 may be a separate cylindrical structure to be detachably mounted in the case 31. The box 31 may also be composed of a top cover and a bin body with an open top, wherein one or more of the water inlet 32, the water outlet 33 and the valve assembly 34 are arranged on the top cover.

Referring to fig. 5 to 8, the filter element 36 of the present embodiment is disposed in the second cavity Q2 of the water tank 30, the water inlet end of the filter element 36 is connected to the first through hole 301h, and the water outlet end of the filter element 36, such as a filter screen, is connected to the second cavity Q2. Illustratively, the bottom plate of the housing 31 is provided with mounting holes 303, and the filter element 36 is detachably connected to the bottom of the housing 31 through the mounting holes 303. For example, the water tank 30 further includes a mounting seat 361, the filter element 36 is fixed to the mounting seat 361, or is integrally provided with the mounting seat 361, the outer surface of the mounting seat 361 is provided with a circle of screw threads, the mounting hole 303 is provided with an inner screw thread, and the filter element 36 can be mounted to the bottom plate of the tank body 31 by screwing the mounting seat 361 into the mounting hole 303, so that the water inlet end of the filter element 36 abuts against the baffle 3012 and communicates with the first through hole 301h.

In one embodiment, the water tank 30 also has a return mechanism 39, the return mechanism 39 being operable to resume communication of the water inlet 32 and the water outlet 33 after the flow path between the water inlet 32 and the water outlet 33 is shut off by the second switch assembly K2.

In one embodiment, the reset mechanism 39 is disposed in the case 31, and at least partially extends into the case 31, and is configured to receive a preset external force to drive the second switch assembly K2 to move, so as to conduct the first through hole 301h. Specifically, when the liquid level in the tank 31 reaches the second preset height H2, the blocking member 301a moves under the driving of the second floating member 300 to block the first through hole 301H, at this time, the user can press the second floating member 300 in the tank 31 through the reset mechanism 39, the second floating member 300 descends after being pressed, so that the blocking member 301a is tilted to not block the first through hole 301H any more, and the first cavity Q1 and the second cavity Q2 can be in communication. For example, the reset mechanism 39 may be depressed and may drive the second switch assembly K2 to move after being depressed; or the reset mechanism 39 may be screwed in and out and may, after being rotated, drive the second switch assembly K2 in motion.

In one embodiment, referring to fig. 5, the reset mechanism 39 includes a rod 391 and a limiting member 393 located in the box 31, the box 31 has a second through hole, one end of the rod 391 is inserted into the box 31 through the second through hole, and the limiting member 393 is sleeved on an outer wall of the rod 391 for limiting the rod 391 from being separated from the box 31.

In one embodiment, the reset mechanism 39 may further include a sealing member 390, where the sealing member 390 may be disposed on an outer wall of the rod 391 and located on a side of the limiting member 393 facing the case 31, and is configured to abut against an inner wall of the case 31 to seal a gap between the rod 391 and a wall of the second through hole, so as to seal between the rod 391 and the case 31, and prevent water in the case 31 from leaking from the second through hole of the rod 391. In other embodiments, the sealing member 390 may be spaced from the limiting member 393 to block only the gap between the rod 391 and the second through hole.

In one embodiment, to achieve automatic resetting after the rod 391 is pressed and the external force is removed, the resetting mechanism 39 may further include an elastic member 392 sleeved on the rod 391, where the elastic member 392 is installed between the rod 391 and the case 31, so that the limiting member 393 is elastically abutted against the inner surface of the case 31. For example, the elastic member 392 is located outside the case 31, compressed between the end of the rod 391 located outside the case 31 and the outer surface of the case 31, and after the external force is removed, the limiting member 393 is elastically abutted against the inner surface of the case 31 under the action of the elastic member 392; alternatively, the elastic member 392 is located in the case 31 and is in an extended state, and both ends thereof respectively tighten the rod 391 and the inner wall of the case 31, so that the two tend to approach each other, and the limiting member 393 abuts against the inner surface of the case 31.

In some embodiments, when the liquid level is maintained at the second preset height H2 after the first switch assembly K1 fails, the blocking member 301a may further tilt up to toggle the first floating member 35 of the first switch assembly K1 after the reset mechanism 39 presses the second floating member 300, so as to open the water inlet 32, and simultaneously release the blocking state of the first floating member 35.

In the process of using the water tank 30, high-pressure water of the external water source 10 enters the water tank 30 from the water inlet 32, the liquid level in the water tank 30 rises to drive the first floating piece 35 to rise, when the liquid level rises to a first preset height H1, the first floating piece 35 triggers the valve component 34 to close the water inlet 32, the water tank 30 stops water inflow, water in the first cavity Q1 can normally enter the second cavity Q2 through the filter element 36 and flows out through the water outlet 33 to supply water to the base station 20; when the liquid level rises to the first preset height H1 but the first floating member 35 does not work normally, the water inlet 32 continues to feed water, the second floating member 300 rises along with the liquid level, and when the liquid level rises to the second preset height H2, the second floating member 300 triggers the blocking member 301a to block the first through hole 301H, and although the water inlet 32 can continue to feed water, the water pressure is sealed in the first cavity Q1, so that the water pressure of the second cavity Q2 cannot be affected; when the first floating member 35 does not work normally and needs to be treated, the filter element 36 can be removed from the case 31, water in the second cavity Q2 can be drained from the mounting hole 303, and then the second floating member 300 is lowered by pressing the rod 391 so that the blocking member 301a does not block the first through hole 301h, thereby draining water in the first cavity Q1, and the blocking member 301a can be turned up and touch the first floating member 35 at the same time to release the fault state. Eventually, the entire water tank 30 is restored to the anhydrous state. It will be appreciated that touching the first float member 35 to relieve its failure state may also be accomplished in other ways, for example, by inserting a tool into the mounting hole 303 to jack up the first float member 35.

Fig. 5 to 8 show the case where the connection member 301b is rotatably connected to the case 31, and it is understood that the embodiment of the present utility model is not limited thereto. For example, as shown in fig. 9, in another embodiment, the second floating member 300 is slidably matched with the box 31, and is laterally limited by the box 31 during the floating of the floating member 300, the moving directions of the connecting member 301b and the blocking member 301a are consistent with those of the floating member 300, and during the floating of the second floating member 300, the second floating member 300 drives the blocking member 301a to rise through the connecting member 301b and move towards the first through hole 301h. In this embodiment, the partition board 301 still includes a side board 3011 and a baffle 3012, the baffle 3012 extends towards the side where the water outlet 33 is located, one end of the connecting piece 301b is connected to the floating piece 300, and the other end extends towards the side where the water outlet 33 is located to form an L-shaped structure, and the space between the baffle 3012 and the bottom of the box 31 can allow the blocking piece 301a to move vertically. In the process of lifting the second floating member 300, the blocking member 301a is lifted up along with the driving of the connecting member 301b and moves towards the first through hole 301H, and when the liquid level in the tank 31 reaches the second preset height H2, the blocking member 301a blocks the first through hole 301H under the buoyancy effect.

Illustratively, the case 31 has a second guide member 302 extending along a height direction thereof, and the second floating member 300 is movably sleeved on the second guide member 302 to move along the second guide member 302 under the action of buoyancy. The number of the second guide members 302 may be more than one, and a plurality of the second guide members 302 may be disposed at intervals, so as to jointly implement the guiding function on the second floating member 300, thereby implementing the sliding fit between the floating member 300 and the case 31.

For another example, as shown in fig. 10, in still another embodiment, the isolation plate 301 and the first through hole 301H may be omitted, and the second switch assembly may be used to shut off the flow channel between the water outlet pipe 37 and the water outlet 33 when the liquid level in the tank 31 reaches the second preset height H2, for example, the second switch assembly may shut off the water outlet 33 from supplying liquid by blocking the end of the water outlet pipe 37. Illustratively, the blocking member 301a is opposite to the end of the upper water outlet pipe 37, and during the floating of the second floating member 300, the second floating member 300 drives the blocking member 301a to rise through the connecting member 301b and move toward the end of the water outlet pipe 37. When the liquid level in the tank 31 reaches the second preset height H2, the blocking member 301a blocks the end of the water outlet pipe 37 under the buoyancy effect, so that the water outlet 33 can not be supplied any more, and water in the tank 31 is prevented from overflowing.

The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.

Claims

1. A water tank for connection between an external water source and a base station of a cleaning appliance, the water tank comprising:

2. The water tank of claim 1, wherein the first switch assembly comprises:

3. The water tank of claim 1, further comprising:

4. The water tank of claim 3 wherein the water tank is configured to,

the box body comprises a first cavity and a second cavity, the first cavity and the second cavity are communicated with each other through a first through hole, and the water outlet is communicated with the second cavity;

5. The water tank of claim 4 wherein the second switch assembly comprises:

a second float member;

6. The water tank of claim 5 wherein the second float is connected to the barrier by a connector;

7. The water tank of claim 4, further comprising:

the reset mechanism is used for recovering the communication between the water inlet and the water outlet;

the reset mechanism is arranged in the box body and at least partially stretches into the box body, and is used for receiving preset external force to drive the second switch assembly to move so that the first through hole is conducted.

8. The water tank of claim 7, wherein the reset mechanism comprises: the rod body and the limiting piece are positioned in the box body;

9. The water tank of claim 8, wherein the reset mechanism comprises:

the sealing piece is arranged on the outer wall of the rod body and is used for abutting against the inner wall of the box body to seal a gap between the rod body and the hole wall of the second through hole;

and/or the number of the groups of groups,

the reset mechanism further comprises an elastic piece sleeved on the rod body, and the elastic piece is arranged between the rod body and the box body, so that the limiting piece is elastically abutted against the inner surface of the box body.

10. A cistern as claimed in claim 3, further comprising:

11. A cistern as claimed in claim 3, further comprising:

12. The water tank of claim 4, further comprising a filter element disposed within said second chamber, said filter element having a water inlet end in communication with said first through bore and a water outlet end in communication with said second chamber;

13. A water supply system comprising a base station and a water tank according to any one of claims 1 to 12 for connection to an external water source for buffering water from the external water source, the water outlet being connected to the base station.

14. The water supply system according to claim 13, further comprising a pump body connected to the water outlet and disposed in the tank or outside the tank or inside the base station to pump out the water buffered in the tank;

and/or the water tank is arranged at the external water source.

15. A cleaning robot system comprising a cleaning robot, further comprising the water supply system of any one of claims 13 to 14, the base station providing care to the cleaning robot.