Water tank and cleaning robot

By designing an air intake pipe in the water tank of the cleaning robot at the bottom of the water storage chamber and higher than the air pump, combined with a sealing ring and a detachable connection, the problem of air pump damage caused by water tank inversion or seal leakage is solved, thereby improving the reliability of the water tank and the service life of the cleaning robot.

CN120585233APending Publication Date: 2025-09-05BEST EPOCH TECH CO LTD +1
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Patent Information

Application Number
CN202510877054.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

When the water tank of an existing cleaning robot is inverted or the seal is leaking, water can easily flow back into the air pump, causing damage to the air pump.

Method used

A water tank structure is designed, in which one end of the air intake pipe is located at the bottom of the water storage chamber, the air pump is arranged above the water storage chamber, the end of the air intake pipe away from the air pump is located at the bottom of the water storage chamber, and part of the air intake pipe is higher than the air pump. Combined with a sealing ring and a detachable connection structure, water is prevented from flowing back into the air pump.

Benefits of technology

This effectively prevents water in the water storage chamber from flowing back to the air pump when the water tank is inverted, reduces the possibility of damage to the air pump, and improves the reliability of the water tank and the service life of the cleaning robot.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a water tank and a cleaning robot, and relates to the technical field of cleaning robots. The water tank comprises a water tank body and an air pump; the water tank body is provided with a water storage cavity and an air inlet pipeline, and one end of the air inlet pipeline is located at the bottom of the water storage cavity. The air pump is arranged on the water tank body, and the air outlet end of the air pump is connected with the other end of the air inlet pipeline. When the water tank works, the air pump conveys air into the water storage cavity through the air inlet pipeline, so that the air pressure in the water storage cavity is increased, and then water stored in the water storage cavity is discharged through structures such as the water outlet pipe or the water outlet hole to be used for cleaning of the cleaning robot. As the end, far away from the air pump, of the air inlet pipeline is located at the bottom of the water storage cavity, when the water tank is inverted, the end, far away from the air pump, of the air inlet pipeline is high and is not prone to being submerged by the water surface in the water storage cavity, water in the water storage cavity is not prone to flowing back to the air pump through the air inlet pipeline, and therefore the situation that the air pump is damaged can be improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of cleaning robots, and in particular to a water tank and a cleaning robot. Background Art

[0002] Currently, the electric-controlled water tanks in sweepers on the market primarily use three drive methods: air pumps, water pumps, and peristaltic pumps. Air pumps are much cheaper than water pumps and peristaltic pumps, but they also have significant drawbacks: water in the water tank can easily flow back into the air pump, causing damage. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, one of the purposes of the present invention is to provide a water tank.

[0004] The present invention provides the following technical solutions: A water tank is applied to a cleaning robot, the water tank comprising: A water tank body, the water tank body having a water storage cavity, an air intake pipe being provided on the water tank body, one end of the air intake pipe being located at the bottom of the water storage cavity; and An air pump is provided on the water tank body, and an air outlet end of the air pump is connected to the other end of the air inlet pipe.

[0005] As a further optional solution for the water tank, the air pump is arranged above the water storage chamber, and part of the air inlet pipe is higher than the air pump.

[0006] As a further optional solution to the water tank, the air intake pipe includes a first air intake pipe and a second air intake pipe; The first air inlet pipe is integrally formed with the water tank body, one end of the first air inlet pipe is located at the bottom of the water storage cavity, and the other end of the first air inlet pipe is located outside the water storage cavity and connected to the second air inlet pipe; One end of the second air inlet pipe away from the first air inlet pipe is connected to the air outlet end of the air pump, and a portion of the second air inlet pipe is higher than the air pump.

[0007] As a further optional solution for the water tank, the water tank body includes a water tank upper cover, a water tank middle cover and a water tank lower cover connected in sequence, and the water tank upper cover, the water tank middle cover and the water tank lower cover together form the water storage cavity; The air pump is arranged on the water tank upper cover, and the first air inlet pipe is integrally formed with the water tank upper cover.

[0008] Another object of the present invention is to provide a cleaning robot.

[0009] The present invention provides the following technical solutions: A cleaning robot comprises a main body and the above-mentioned water tank, wherein the water tank body is detachably connected to the main body.

[0010] As a further optional solution for the cleaning robot, a first water outlet pipe is provided on the water tank body, and a second water outlet pipe and a water outlet bracket are provided on the main unit. The first water outlet pipe is detachably connected to one end of the second water outlet pipe, and the other end of the second water outlet pipe is connected to the water outlet bracket.

[0011] As a further optional solution for the cleaning robot, the first water outlet pipe includes a first water inlet end and a first water outlet end, the first water inlet end is located in the water storage chamber, the first water outlet end is higher than the first water inlet end, the first water outlet end is detachably connected to one end of the second water outlet pipe, and part of the first water outlet pipe is higher than the first water outlet end.

[0012] As a further optional solution for the cleaning robot, a first connecting part and a second connecting part are provided on the water tank body, the first connecting part and the second connecting part are connected to each other, the first connecting part is located in the water storage chamber, the first connecting part is connected to the first water outlet pipe, the second connecting part is located outside the water storage chamber, and the second connecting part is detachably connected to one end of the second water outlet pipe.

[0013] As a further optional solution for the cleaning robot, a docking bracket is provided on the main unit, one end of the docking bracket is inserted into the second connecting portion, and the other end of the docking bracket is connected to one end of the second water outlet pipe.

[0014] As a further optional solution for the cleaning robot, a first sealing ring is sleeved on one end of the docking bracket close to the second connecting portion, and the first sealing ring elastically abuts against the inner wall of the second connecting portion.

[0015] The embodiments of the present invention have the following beneficial effects: When the water tank is operating, the air pump delivers air into the water storage chamber through the air intake pipe, increasing the air pressure within the water storage chamber. This in turn causes the water stored in the water storage chamber to be discharged through a water outlet pipe or outlet hole, allowing the cleaning robot to use it for cleaning. Because the end of the air intake pipe, away from the air pump, is located at the bottom of the water storage chamber, when the water tank is inverted, the end of the air intake pipe, away from the air pump, is positioned higher and less likely to be submerged by the water surface within the water storage chamber. This also reduces the risk of water within the water storage chamber flowing back into the air pump through the air intake pipe, thereby reducing the risk of air pump damage.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the overall structure of a water tank provided by an embodiment of the present invention is shown; Figure 2 A schematic diagram of the internal structure of a water tank provided by an embodiment of the present invention is shown; Figure 3 A schematic cross-sectional view of a water tank at a water inlet provided by an embodiment of the present invention is shown; Figure 4 A schematic diagram of the overall structure of a cleaning robot provided by an embodiment of the present invention is shown; Figure 5 A schematic structural diagram of a water outlet bracket in a cleaning robot provided by an embodiment of the present invention is shown; Figure 6 A schematic diagram showing the connection relationship between a first water outlet pipe and a second water outlet pipe in a cleaning robot provided by an embodiment of the present invention is shown.

[0019] Description of main component symbols: 100-water tank body; 101-water tank upper cover; 102-water tank middle cover; 103-water tank lower cover; 104-button cover; 110-water storage chamber; 120-air inlet pipe; 121-first air inlet pipe; 122-second air inlet pipe; 130-water tank plug; 140-water filling pipe; 141-water filling port; 142-second sealing ring; 150-first water outlet pipe; 151-first water inlet end; 152-first water outlet end; 160-first connecting part; 170-second connecting part; 200-air pump; 300-main unit bottom shell; 310-second water outlet pipe; 320-water outlet bracket; 321-water outlet hole; 330-docking bracket; 331-first sealing ring. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0022] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the template description herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The inventors of this application have discovered that if a user accidentally turns the water tank upside down while using an existing cleaning robot, water in the tank can easily flow back into the air pump, potentially damaging it. Alternatively, if the seal inside the air pump leaks, water in the tank can also flow back into the air pump as the user adds water, similarly damaging the pump.

[0026] Example In order to solve the above problems, this embodiment provides a water tank for use in a cleaning robot. Figure 1 and Figure 2 The water tank includes a water tank body 100 and an air pump 200.

[0027] The water tank body 100 has a water storage chamber 110. It can be understood that the water storage chamber 110 can be used to store clean water or a detergent solution.

[0028] In addition, an air intake pipe 120 is provided on the water tank body 100 , and one end of the air intake pipe 120 is located at the bottom of the water storage chamber 110 .

[0029] Correspondingly, the air pump 200 is disposed on the water tank body 100 , and the air outlet end of the air pump 200 is connected to the other end of the air inlet pipe 120 .

[0030] When the water tank is operating, the air pump 200 delivers air into the water storage chamber 110 through the air intake pipe 120, causing the air pressure in the water storage chamber 110 to rise. This in turn causes the water stored in the water storage chamber 110 to be discharged through a water outlet pipe or drain hole, for use by the cleaning robot. Because the end of the air intake pipe 120, away from the air pump 200, is located at the bottom of the water storage chamber 110, when the water tank is inverted, the end of the air intake pipe 120, away from the air pump 200, is located higher and less likely to be submerged by the water surface in the water storage chamber 110. This also reduces the risk of water in the water storage chamber 110 flowing back into the air pump 200 through the air intake pipe 120, thereby reducing the risk of damage to the air pump 200.

[0031] It should be noted that there is a gap between the end of the air intake pipe 120 away from the air pump 200 and the bottom surface of the inner wall of the water storage chamber 110, so that the air in the air intake pipe 120 can smoothly enter the water storage chamber 110.

[0032] In this embodiment, a water inlet 141 is provided on the top of the water tank body 100. The water inlet 141 is communicated with the water storage chamber 110, and a water tank plug 130 is provided at the water inlet 141.

[0033] During use, the user adds water to the water storage chamber 110 through the water filling port 141, and after adding water, inserts the water tank plug 130 into the water filling port 141 to block the water filling port 141 to prevent the water in the water storage chamber 110 from overflowing or splashing out from the water filling port 141.

[0034] In particular, when the user inserts the water tank plug 130 into the water inlet 141, the water tank plug 130 squeezes the air in the water storage chamber 110, causing the air pressure in the water storage chamber 110 to slightly increase, which may cause a small amount of water in the water storage chamber 110 to spray out from the water outlet pipe connected to the water storage chamber 110. Alternatively, if there is a leak in the seal of the air pump 200, a small amount of water in the water storage chamber 110 may spray into the air pump 200 through the air inlet pipe 120, causing damage to the air pump 200.

[0035] In some embodiments, the air pump 200 is disposed above the water storage chamber 110 , and a portion of the air inlet pipe 120 is higher than the air pump 200 .

[0036] Specifically, when the water tank body 100 is in an upright position, the air pump 200 is located above the water storage chamber 110 , and a portion of the air inlet pipe 120 is higher than the air pump 200 .

[0037] When the seal inside the air pump 200 leaks, as the user adds water to the water storage chamber 110, the water in the water storage chamber 110 will flow into the air inlet pipe 120, and the liquid level in the air inlet pipe 120 will rise as the liquid level in the water storage chamber 110 rises. Because the air pump 200 is located above the water storage chamber 110 and is generally higher than the entire water storage chamber 110, it is difficult for the water in the water storage chamber 110 to flow back into the air pump 200 through the air inlet pipe 120.

[0038] However, considering that the water tank body 100 may tilt at a certain angle during the water filling process, causing one end of the water storage chamber 110 to be higher than the air pump 200, there is still a possibility that the water in the water storage chamber 110 will flow back into the air pump 200. Therefore, by making a portion of the air intake pipe 120 higher than the air pump 200, the liquid level in the air intake pipe 120 is less likely to rise to the highest point of the air intake pipe 120, thereby reducing the possibility of water in the water storage chamber 110 flowing back into the air pump 200 through the air intake pipe 120.

[0039] Similarly, when the user inserts the water tank plug 130 into the water filling port 141 , the water in the water storage chamber 110 is also unlikely to be sprayed into the air pump 200 through the air inlet pipe 120 .

[0040] In some embodiments, the air intake duct 120 includes a first air intake pipe 121 and a second air intake pipe 122 .

[0041] The first air inlet pipe 121 is integrally formed with the water tank body 100 . One end of the first air inlet pipe 121 is located at the bottom of the water storage chamber 110 , and the other end of the first air inlet pipe 121 is located outside the water storage chamber 110 and connected to the second air inlet pipe 122 .

[0042] As can be understood, because the first air inlet pipe 121, which extends through the inside and outside of the water storage chamber 110, is integrally formed with the water tank body 100, the connection between the first air inlet pipe 121 and the water tank body 100 is completely sealed without any gap. When the water tank body 100 is turned upside down, water in the water storage chamber 110 cannot leak through the connection between the first air inlet pipe 121 and the water tank body 100.

[0043] In addition, one end of the second air inlet pipe 122 away from the first air inlet pipe 121 is connected to the air outlet end of the air pump 200 , and a portion of the second air inlet pipe 122 is higher than the air pump 200 .

[0044] Specifically, the end of the second air inlet pipe 122 near the air pump 200 extends horizontally. As the distance from the air pump 200 increases, the second air inlet pipe 122 bends upward at an angle until it is higher than the air pump 200. The end of the second air inlet pipe 122 away from the air pump 200 bends vertically downward and connects to the end of the first air inlet pipe 121 located outside the water storage chamber 110.

[0045] In other embodiments of the present application, the air intake pipe 120 may also be an independent pipe that passes through the water tank body 100 and is sealed to the water tank body 100 by a sealing ring or other structure. The portion of the air intake pipe 120 located within the water storage chamber 110 is the first air intake pipe 121, and the portion located outside the water storage chamber 110 is the second air intake pipe 122.

[0046] In some embodiments, the water tank body 100 includes a water tank upper cover 101, a water tank middle cover 102 and a water tank lower cover 103 connected in sequence, and the water tank upper cover 101, the water tank middle cover 102 and the water tank lower cover 103 together form a water storage chamber 110.

[0047] In addition, the air pump 200 is disposed on the water tank cover 101 , and the first air inlet pipe 121 is integrally formed with the water tank cover 101 .

[0048] For example, the water tank middle cover 102 has an inner cavity that extends from top to bottom. The water tank upper cover 101 is connected to the top of the water tank middle cover 102, sealing the top opening of the inner cavity. The water tank lower cover 103 is connected to the bottom of the water tank middle cover 102, sealing the bottom opening of the inner cavity. The inner cavity, with both ends sealed, serves as the water storage chamber 110.

[0049] Please also refer to Figure 1 and Figure 3 In this embodiment, the water tank body 100 further includes a button cover 104. The button cover 104 is connected to the top of the water tank upper cover 101, and encapsulates the air pump 200 and the second air inlet pipe 122 therein.

[0050] For example, a water inlet pipe 140 is integrally formed on the water tank cover 101, with the lumen of the water inlet pipe 140 serving as the water inlet port 141. The water inlet pipe 140 is provided with an annular step and is fitted with a second sealing ring 142. The button cover 104 surrounds the top of the water inlet pipe 140, exposing the top end of the pipe 140. The button cover 104 is held against the step by the second sealing ring 142.

[0051] During use, the second sealing ring 142 can seal the connection between the button cover 104 and the water filling pipe 140 , so that water is not easily introduced between the button cover 104 and the water tank upper cover 101 when the user adds water to the water storage chamber 110 .

[0052] In summary, when the water tank is operating, the air pump 200 delivers air into the water storage chamber 110 through the air intake pipe 120, causing the air pressure in the water storage chamber 110 to rise. This in turn causes the water stored in the water storage chamber 110 to be discharged through the outlet pipe or outlet hole 321, etc., for use by the cleaning robot. Because the end of the air intake pipe 120 away from the air pump 200 is located at the bottom of the water storage chamber 110, when the water tank is inverted, the end of the air intake pipe 120 away from the air pump 200 is located higher and less likely to be submerged by the water surface in the water storage chamber 110. This makes it less likely that water in the water storage chamber 110 will flow back into the air pump 200 through the air intake pipe 120, thereby reducing the risk of damage to the air pump 200. In addition, since part of the air intake pipe 120 is higher than the air pump 200, when the user adds water to the water storage chamber 110 or inserts the water tank plug 130 into the water filling port 141, the liquid level in the air intake pipe 120 is not easy to rise to the highest point of the air intake pipe 120, which can reduce the possibility of water in the water storage chamber 110 flowing back to the air pump 200 through the air intake pipe 120.

[0053] This embodiment also provides a cleaning robot, which can be a sweeping robot or other intelligent electrical appliances with cleaning functions. Figure 4 The cleaning robot comprises a main unit and the water tank, wherein the water tank body 100 is detachably connected to the main unit.

[0054] When in use, the user first removes the water tank body 100 from the main unit, and then adds water to the water storage chamber 110. After adding water, the user puts the water tank body 100 back into the main unit.

[0055] Specifically, the main unit includes a main unit bottom shell 300. The water tank body 100 is disposed on the main unit bottom shell 300 and is engaged with the main unit bottom shell 300.

[0056] In some embodiments, the water tank body 100 is provided with a first water outlet pipe 150 (see Figure 3 ), the main unit is provided with a second water outlet pipe 310 and a water outlet bracket 320. The first water outlet pipe 150 is detachably connected to one end of the second water outlet pipe 310, and the other end of the second water outlet pipe 310 is connected to the water outlet bracket 320.

[0057] When the user removes the water tank body 100 from the main body bottom case 300 , the first water outlet pipe 150 is separated from the second water outlet pipe 310 .

[0058] Conversely, when the user returns the water tank body 100 to the main unit bottom housing 300, the first water outlet pipe 150 reconnects to the second water outlet pipe 310. The air pump 200 then pumps air into the water storage chamber 110 through the air intake pipe 120, increasing the air pressure within the water storage chamber 110. This in turn causes the water stored in the water storage chamber 110 to be discharged through the first water outlet pipe 150 to the second water outlet pipe 310. The water in the water storage chamber 110 ultimately flows out through the water outlet bracket 320 for use by the cleaning robot.

[0059] It can be understood that the water outlet bracket 320 is set on the main body bottom shell 300. The water flowing out through the water outlet bracket 320 is closer to the cleaning unit of the cleaning robot (such as a mop, etc.), and cooperates better with the cleaning unit, which is conducive to enhancing the cleaning effect.

[0060] In addition, the main body bottom shell 300 has a larger space for arranging the water outlet bracket 320. By appropriately increasing the size of the water outlet bracket 320 and reasonably arranging the position of the water outlet hole 321 on the water outlet bracket 320, the water can be discharged more evenly, which is also beneficial to enhance the cleaning effect.

[0061] Please also refer to Figure 4 and Figure 5 In this embodiment, the water outlet bracket 320 is arranged in an elongated strip shape, and water outlet holes 321 are respectively provided at both ends and the middle of the water outlet bracket 320. The second water outlet pipe 310 is fixedly connected to the middle of the water outlet bracket 320.

[0062] See also Figure 6 In some embodiments, the first water outlet pipe 150 includes a first water inlet end 151 and a first water outlet end 152. The first water inlet end 151 is located in the water storage chamber 110, and the first water outlet end 152 is higher than the first water inlet end 151. The first water outlet end 152 is detachably connected to one end of the second water outlet pipe 310. A portion of the first water outlet pipe 150 is higher than the first water outlet end 152.

[0063] It is understandable that, since the first water outlet 152 is higher than the first water inlet 151 , during the water adding process, the water injected into the water storage chamber 110 is not easy to flow out directly from the first water outlet pipe 150 .

[0064] Furthermore, as the user adds water to the water storage chamber 110, the water in the water storage chamber 110 flows into the first water outlet pipe 150, and the liquid level in the first water outlet pipe 150 rises as the liquid level in the water storage chamber 110 rises. Because a portion of the first water outlet pipe 150 is higher than the first water outlet end 152, the liquid level in the first water outlet pipe 150 is less likely to rise to the highest point of the first water outlet pipe 150. This reduces the possibility of water in the water storage chamber 110 overflowing through the first water outlet pipe 150 and improves the problem of water being dispensed simultaneously while the water tank body 100 is being filled.

[0065] Similarly, when the user inserts the water tank plug 130 into the water filling port 141 , the water in the water storage chamber 110 is also not easily sprayed out through the first water outlet pipe 150 .

[0066] In some embodiments, the water tank body 100 is provided with a first connecting portion 160 and a second connecting portion 170, which are in communication with each other. The first connecting portion 160 is located within the water storage chamber 110 and is connected to the first water outlet pipe 150. The second connecting portion 170 is located outside the water storage chamber 110 and is detachably connected to one end of the second water outlet pipe 310.

[0067] That is, the first water outlet end 152 is detachably connected to one end of the second water outlet pipe 310 through the first connecting portion 160 and the second connecting portion 170 .

[0068] Specifically, the first connection portion 160 and the second connection portion 170 are both provided on the water tank middle cover 102 and are integrally formed with the water tank middle cover 102. There is no gap at the connection between the first connection portion 160 and the water tank middle cover 102, and there is no gap at the connection between the second connection portion 170 and the water tank middle cover 102, and they are completely sealed.

[0069] In addition, the first connection part 160 and the second connection part 170 being connected to each other specifically means that the first connection part 160 and the second connection part 170 are hollow, and the inner cavity of the first connection part 160 and the inner cavity of the second connection part 170 are connected to each other.

[0070] In this embodiment, the first connection portion 160 is inserted into the first water outlet end 152 .

[0071] Furthermore, the host is provided with a docking bracket 330 . One end of the docking bracket 330 is inserted into the second connecting portion 170 , and the other end of the docking bracket 330 is connected to one end of the second water outlet pipe 310 .

[0072] That is, the first water outlet end 152 is detachably connected to the docking bracket 330 through the first connecting portion 160 and the second connecting portion 170 , and further detachably connected to one end of the second water outlet pipe 310 .

[0073] It can be understood that one end of the docking bracket 330 is plugged into and matched with the second connecting portion 170 to facilitate repeated assembly and disassembly.

[0074] In this embodiment, one end of the docking bracket 330 close to the second water outlet pipe 310 is inserted into the second water outlet pipe 310 .

[0075] Furthermore, a first sealing ring 331 is sleeved on one end of the docking bracket 330 close to the second connecting portion 170 . The first sealing ring 331 elastically abuts against the inner wall of the second connecting portion 170 .

[0076] When in use, the first sealing ring 331 can enhance the sealing between the docking bracket 330 and the second connecting part 170, while ensuring the quick disassembly and assembly of the docking bracket 330 and the second connecting part 170, preventing water from leaking from the connection between the docking bracket 330 and the second connecting part 170.

[0077] In summary, when the cleaning robot is operating, the air pump 200 delivers air to the water storage chamber 110 through the air inlet pipe 120, causing the air pressure in the water storage chamber 110 to rise, and the water stored in the water storage chamber 110 to be discharged through the first water outlet pipe 150. The water discharged from the water storage chamber 110 further flows into the water outlet bracket 320 through the second water outlet pipe 310, and ultimately flows out of the water outlet hole 321 of the water outlet bracket 320, cooperating with the cleaning unit of the cleaning robot to clean the floor. Because the water flowing out of the water outlet hole 321 is closer to the cleaning unit, it cooperates better with the cleaning unit, and the size of the water outlet bracket 320 can be appropriately increased to properly arrange the position of the water outlet hole 321, which can achieve more uniform water discharge, thereby enhancing the cleaning effect of the cleaning robot.

[0078] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

[0079] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0080] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A water tank, characterized in that: Applied to a cleaning robot, the water tank includes: A water tank body, the water tank body having a water storage cavity, an air intake pipe being provided on the water tank body, one end of the air intake pipe being located at the bottom of the water storage cavity; and An air pump is provided on the water tank body, and an air outlet end of the air pump is connected to the other end of the air inlet pipe.

2. The water tank according to claim 1, characterized in that The air pump is arranged above the water storage chamber, and part of the air inlet pipe is higher than the air pump.

3. The water tank according to claim 2, characterized in that The air intake duct includes a first air intake pipe and a second air intake pipe; The first air inlet pipe is integrally formed with the water tank body, one end of the first air inlet pipe is located at the bottom of the water storage cavity, and the other end of the first air inlet pipe is located outside the water storage cavity and connected to the second air inlet pipe; One end of the second air inlet pipe away from the first air inlet pipe is connected to the air outlet end of the air pump, and a portion of the second air inlet pipe is higher than the air pump.

4. The water tank according to claim 3, characterized in that The water tank body comprises a water tank upper cover, a water tank middle cover and a water tank lower cover which are connected in sequence, and the water tank upper cover, the water tank middle cover and the water tank lower cover together form the water storage cavity; The air pump is arranged on the water tank upper cover, and the first air inlet pipe is integrally formed with the water tank upper cover.

5. A cleaning robot, characterized in that: It comprises a main unit and a water tank according to any one of claims 1 to 4, wherein the water tank body is detachably connected to the main unit.

6. The cleaning robot according to claim 5, characterized in that: The water tank body is provided with a first water outlet pipe, the main unit is provided with a second water outlet pipe and a water outlet bracket, the first water outlet pipe is detachably connected to one end of the second water outlet pipe, and the other end of the second water outlet pipe is connected to the water outlet bracket.

7. The cleaning robot according to claim 6, characterized in that: The first water outlet pipe includes a first water inlet end and a first water outlet end, the first water inlet end is located in the water storage cavity, the first water outlet end is higher than the first water inlet end, the first water outlet end is detachably connected to one end of the second water outlet pipe, and part of the first water outlet pipe is higher than the first water outlet end.

8. The cleaning robot according to claim 6, characterized in that: The water tank body is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are connected to each other, the first connecting part is located in the water storage chamber, the first connecting part is connected to the first water outlet pipe, the second connecting part is located outside the water storage chamber, and the second connecting part is detachably connected to one end of the second water outlet pipe.

9. The cleaning robot according to claim 8, characterized in that: The host is provided with a docking bracket, one end of the docking bracket is inserted into the second connecting portion, and the other end of the docking bracket is connected to one end of the second water outlet pipe.

10. The cleaning robot according to claim 9, characterized in that: A first sealing ring is sleeved on one end of the docking bracket close to the second connecting portion, and the first sealing ring elastically abuts against the inner wall of the second connecting portion.