Clean water tank system and cleaning robot

Abstract

The present invention discloses a clean water tank system and a cleaning robot. The clean water tank system of the present invention comprises: a clean water tank body; a water injection part, the water injection part is arranged on the upper part of the clean water tank body, and the water injection part is connected with the clean water tank body, and the water injection part is provided with a water injection port; a shielding buffer part, the shielding buffer part is connected between the clean water tank body and the water injection part; a liquid level detection component, the liquid level detection component is arranged on the clean water tank body to detect the liquid level in the clean water tank body, the liquid level detection component is electrically connected with a water replenishment pump, and the outlet of the water replenishment pump is connected with the water injection part. The cleaning robot comprises a frame and the clean water tank system, and the clean water tank system is arranged on the frame. The clean water tank system and the cleaning robot of the present invention have the characteristics of compact structure, reasonable layout, ingenious conception, good buffering and shielding effect, good anti-surge effect, automation, etc.

Description

Technical Field

[0001] The invention relates to the field of automatic cleaning equipment, and in particular to a clean water tank system and a cleaning robot. Background Art

[0002] In recent years, with the continuous increase in labor costs and the continuous advancement of intelligent property services, property cleaning robots are increasingly entering application scenarios such as residential communities, office buildings, and hospitals.

[0003] During use, property cleaning robots with a high level of intelligence mostly adopt the operation modes of automatic replenishment of clean water, automatic spraying of clean water, and automatic floor washing.

[0004] When the robot automatically replenishes clean water, the automatic replenishment of clean water often cannot be stopped in time due to poor sensitivity of the liquid level sensor and occasional delays in signal transmission, causing clean water to overflow from the replenishment port of the clean water tank. During the robot's autonomous movement, the robot often experiences varying degrees of bumps due to various reasons such as uneven ground and acceleration and deceleration of the robot, which in turn causes the clean water in the clean water tank to surge and the clean water to overflow from the replenishment port. In the above two situations, the clean water overflowing from the replenishment port will enter the robot and cause great harm to the internal electrical components.

[0005] In response to the above situation, the industry usually solves it by increasing the height difference between the supply port and the actual liquid level of the water tank. However, if the height difference is too large, a lot of the actual usable volume of the water tank will be sacrificed, which will increase the overall volume of the robot. However, lightweight cleaning robots are a very important indicator. If the height difference is too small, it will only reduce the probability of clean water overflowing, and the problem cannot be completely solved.

[0006] Therefore, the above two methods have obvious disadvantages and cannot be used as a better solution to the above problems.

[0007] In order to solve the above-mentioned problems of property cleaning robots, the present invention provides a clean water tank system and a cleaning robot. Summary of the invention

[0008] Based on this, the purpose of the present invention is to provide a clean water tank system and a cleaning robot with a compact structure, a reasonable layout, an ingenious conception, good buffering and shielding effects, good anti-surge effects, and automation.

[0009] The clean water tank system of the present invention comprises:

[0010] Clean water tank;

[0011] A water injection part, which is arranged on the upper part of the clean water tank body and is communicated with the clean water tank body, and is provided with a water injection port;

[0012] A shielding buffer portion, wherein the shielding buffer portion is connected between the clean water tank and the water injection portion;

[0013] A liquid level detection component is arranged on the clean water tank body to detect the liquid level in the clean water tank body.

[0014] The clean water tank system of the present invention arranges a shielding buffer part between the water filling part and the clean water tank body, and can utilize the shielding buffer part to buffer and shield the clean water, thereby reducing the intensity and impact force of the clean water surge, reducing the possibility of the clean water overflowing from the water filling part, and maximizing the use of the volume of the clean water tank body, thereby solving the problem of clean water entering the interior of the cleaning robot from the clean water tank body; the liquid level detection component is utilized to automatically detect the liquid level in the clean water tank body, thereby starting the automatic water replenishment command, and the degree of automation and intelligence is high.

[0015] In one embodiment of the above technical solution, the bottom plate of the water injection part is inclined downward from the water injection port toward the clean water tank body;

[0016] The shielding buffer portion includes a shielding portion and a buffer portion;

[0017] The shielding part is connected between the water injection part and the buffer part, and the buffer part is communicated with the clean water tank;

[0018] The shielding portion and the buffer portion are arranged in a stepped shape from top to bottom.

[0019] The bottom plate of the water injection part is tilted so that the clean water in the water injection part can flow toward the clean water tank body to prevent the clean water from accumulating in the water injection part; the shielding part and the buffer part respectively play the role of shielding and buffering the clean water, which can effectively reduce the intensity and impact force of the clean water surge; the clean water blocked by the shielding part can flow to the buffer part under the action of gravity and flow back into the clean water tank body.

[0020] In one implementation of the above technical solution, the upper end of the shielding portion is higher than the plane where the bottom plate of the water injection portion is located;

[0021] A groove is provided in the middle of the shielding portion, and the bottom surface of the groove is lower than the plane where the bottom plate of the water injection portion is located;

[0022] The bottom plate of the buffer portion is inclined downward toward the clean water tank body from the connection point between the bottom plate and the shielding portion.

[0023] The upper end of the shielding portion is set to be higher than the plane where the bottom plate of the water injection portion is located, so that the shielding portion can block the impact of clean water and reduce the clean water entering the water injection portion; the groove formed in the shielding portion can guide the clean water in the water injection portion to the buffer portion to prevent the clean water from accumulating in the water injection portion; the bottom plate of the buffer portion is tilted downward from the connection between it and the shielding portion toward the clean water tank body, so that the clean water can flow toward the clean water tank body under the action of gravity.

[0024] In one implementation of the above technical solution, the clean water tank system further comprises a shielding plate, and the shielding plate is vertically arranged in the space of the buffer portion;

[0025] The shielding plate has an exhaust hole at the top and a drainage hole at the bottom;

[0026] A gap is provided between the lower end of the shielding plate and the bottom plate of the buffer portion.

[0027] The baffle plate can form the first layer of shielding for the clean water, which can greatly reduce the amplitude and impact force of the surging clean water; the exhaust hole can make the gas inside the clean water tank flow smoothly; the drainage hole can pass the clean water, so that the surging clean water will not have too much impact on the baffle plate; the set gap is conducive to the clean water to flow back to the clean water tank.

[0028] In one embodiment of the above technical solution, the clean water tank system further includes a visible water pipe, which is vertically arranged on one side of the clean water tank body, the upper end of which is connected to a first drainage pipe, and the lower end of which is connected to the lower part of the clean water tank body. The visible water pipe can be used to observe the water level in the clean water tank body from the external surface, which is convenient for equipment repair and maintenance. The first drainage pipe can be used to drain clean water that is higher than the normal liquid level to prevent the liquid level in the clean water tank body from being too high.

[0029] In one embodiment of the above technical solution, the clean water tank system includes a bracket, the bracket is vertically arranged on one side of the clean water tank body, and the visible water pipe is fixed on the bracket;

[0030] Both ends of the visible water pipe are respectively installed with quick-connect connectors, the quick-connect plug located at the upper end of the visible water pipe is connected to the first drainage pipe, and the quick-connect plug located at the lower end of the visible water pipe is connected to the lower part of the clean water tank.

[0031] The visible water pipe is fixed by the bracket to enhance the firmness of the fixation of the visible water pipe; the visible water pipe, the clean water tank and the first drainage pipe can be quickly disassembled and assembled by the quick plug connector, which is convenient for maintenance.

[0032] In one implementation of the above technical solution, the clean water tank system further includes a second drainage pipe, the inner diameter of the second drainage pipe is greater than or equal to the outer diameter of the first drainage pipe, and the second drainage pipe is sleeved on the outlet of the first drainage pipe;

[0033] The first drainage tube is arranged horizontally, and the second drainage tube is arranged vertically.

[0034] In the extremely rare case of excess clean water, the second drainage pipe can further drain the clean water drained out of the first drainage pipe to the ground, completely solving the problem of clean water entering the robot.

[0035] In one implementation of the above technical solution, a water outlet is provided at the lower portion of the clean water tank;

[0036] The clean water tank system further comprises a filter and a water outlet pump, wherein the filter is connected between the water outlet and the water outlet pump.

[0037] The filter can solve the problem of damage to the pump or valve caused by impurities in the clean water, and reduce the workload of repair and maintenance.

[0038] In one embodiment of the above technical solution, the liquid level detection assembly includes an upper liquid level sensor and a lower liquid level sensor, and the upper liquid level sensor and the lower liquid level sensor are respectively arranged at the upper and lower parts of the clean water tank. The upper liquid level sensor and the lower liquid level sensor respectively detect the upper limit liquid level and the lower limit liquid level of the clean water tank, thereby performing or stopping the water replenishment operation to prevent the liquid level in the clean water tank from being too high or too low.

[0039] The present invention further provides a cleaning robot, comprising a frame and any one of the above-mentioned clean water tank systems, wherein the clean water tank system is arranged on the frame.

[0040] Compared with the prior art, the clean water tank system and the cleaning robot of the present invention can use the shielding buffer part to buffer and shield the clean water, reduce the strength and impact of the clean water surge, reduce the possibility of the clean water overflowing from the water injection part, and maximize the use of the volume of the clean water tank body, solving the problem of clean water entering the inside of the cleaning robot from the clean water tank body; the liquid level detection component is used to automatically detect the liquid level in the clean water tank body, thereby starting the automatic water replenishment command, and the degree of automation and intelligence is high. The clean water tank system and the cleaning robot of the present invention have the characteristics of compact structure, reasonable layout, ingenious design, good buffering and shielding effect, good anti-surge effect, and automation.

[0041] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the preferred structure of the clean water tank system of the present invention.

[0043] Figure 2 It is a top view of the preferred structure of the clean water tank.

[0044] Figure 3 yes Figure 2 Partial cross-sectional view along the AA axis.

[0045] Figure 4 yes Figure 3 Sectional view along CC direction.

[0046] Figure 5 It is one of the preferred structural side views of the clean water tank system of the present invention.

[0047] Figure 6 This is the second side view of the preferred structure of the clean water tank system of the present invention.

[0048] Figure 7 This is the third side view of the preferred structure of the clean water tank system of the present invention.

[0049] in, Figure 1 In the figure, A is the lower liquid level surface; B is the upper liquid level surface; C is the liquid level of the water injection part; D is the drainage surface; and E is the water injection port surface. DETAILED DESCRIPTION

[0050] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may change accordingly according to their different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0051] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0052] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0053] See also Figure 1-Figure 7 The clean water tank system of the present invention comprises a clean water tank body 1 , a water injection portion 2 , a shielding buffer portion 3 and a liquid level detection component 4 .

[0054] The water injection part 2 is disposed on the upper part of the clean water tank body 1 , and the water injection part 2 is communicated with the clean water tank body 1 . The water injection part 2 is provided with a water injection port 21 .

[0055] The shielding buffer portion 3 is communicated between the clean water tank 1 and the water injection portion 2 .

[0056] The liquid level detection component 4 is disposed on the clean water tank 1 to detect the liquid level in the clean water tank 1 . The liquid level detection component 4 can be electrically connected to a water replenishment pump, and an outlet of the water replenishment pump is connected to the water injection part 2 .

[0057] By setting a shielding buffer part 3 between the water injection part 2 and the clean water tank body 1, the shielding buffer part 3 can be used to buffer and shield the clean water, thereby reducing the intensity and impact force of the clean water surge, reducing the possibility of the clean water overflowing from the water injection part 2, and maximizing the use of the volume of the clean water tank body 1, thereby solving the problem of clean water entering the interior of the cleaning robot from the clean water tank body 1; the liquid level detection component 4 is used to automatically detect the liquid level in the clean water tank body 1, thereby starting the automatic water replenishment command, with a high degree of automation and intelligence.

[0058] Specifically, the bottom plate of the water injection portion 2 is inclined downward from the water injection port 21 toward the clean water tank 1 .

[0059] The shielding buffer portion 3 includes a shielding portion 31 and a buffer portion 32 .

[0060] The shielding portion 31 is connected between the water injection portion 2 and the buffer portion 32 , and the buffer portion 32 is communicated with the clean water tank 1 .

[0061] The shielding portion 31 and the buffer portion 32 are arranged in a stepped shape from top to bottom.

[0062] The bottom plate of the water injection part 2 is tilted so that the clean water in the water injection part 2 can flow toward the clean water tank body 1 to prevent the clean water from accumulating in the water injection part 2; the shielding part 31 and the buffer part 32 respectively play the role of shielding and buffering the clean water, which can effectively reduce the intensity and impact of the clean water surge; the clean water blocked by the shielding part 31 can flow to the buffer part 32 under the action of gravity and flow back into the clean water tank body 1.

[0063] Preferably, the upper end of the shielding portion 31 is higher than the plane where the bottom plate of the water injection portion 2 is located.

[0064] A groove is formed in the middle of the shielding portion 31 , and the bottom surface of the groove is lower than the plane where the bottom plate of the water injection portion 2 is located.

[0065] The bottom plate of the buffer portion 32 is inclined downward toward the clean water tank 1 from the connection point between the buffer portion 32 and the shielding portion 31 .

[0066] The upper end of the shielding portion 31 is set to be higher than the plane where the bottom plate of the water injection portion 2 is located, so that the shielding portion 31 can block the impact of clean water and reduce the clean water entering the water injection portion 2; the groove opened in the shielding portion 31 can guide the clean water in the water injection portion 2 to the buffer portion 32 to prevent the clean water from accumulating in the water injection portion 2; the bottom plate of the buffer portion 32 is tilted downward from the connection between it and the shielding portion 31 toward the clean water tank body 1, so that the clean water can flow toward the clean water tank body 1 under the action of gravity.

[0067] Furthermore, the clean water tank system further includes a shielding plate 5 , and the shielding plate 5 is vertically arranged in the space of the buffer portion 32 .

[0068] The shielding plate 5 can form a first layer of shielding for the clean water, which can greatly reduce the amplitude and impact force of the surging clean water.

[0069] The shielding plate 5 of this embodiment is preferably configured to be detachable, specifically: a strip-shaped mounting hole 320 is provided above the buffer portion 32; the shielding plate 5 is configured to be L-shaped, with its long side inserted into the mounting hole 320 and its short side stuck outside the mounting hole 320. The shielding plate 5 is configured to be detachable, which is convenient for disassembly and maintenance.

[0070] The shielding plate 5 is provided with an exhaust hole at the top and a drain hole at the bottom. Both the exhaust hole and the drain hole are arranged as oblong holes in the vertical direction, and are preferably arranged in a row in the horizontal direction. The exhaust hole allows the gas inside the clean water tank 1 to flow smoothly; the drain hole allows clean water to flow through, so that the surging clean water will not have too much impact on the shielding plate 5.

[0071] A gap is provided between the lower end of the shielding plate 5 and the bottom plate of the buffer portion 32. The provided gap is conducive to the return of clean water to the clean water tank 1.

[0072] The water injection part 2, the shielding buffer part 3 and the clean water tank 1 can be formed by rotational molding at one time, and the structure of each part is very easy to realize, and no other parts need to be added. The design is ingenious and greatly reduces the workload of processing and assembly. In addition, the present invention maximizes the use of the volume of the clean water tank 1, and there is no waste of this part of the volume, which meets the requirements of lightweight and compact structure of the cleaning robot.

[0073] Furthermore, the liquid level detection assembly 4 includes an upper liquid level sensor 41 and a lower liquid level sensor 42, which are respectively arranged at the upper and lower parts of the clean water tank 1. The upper liquid level sensor 41 and the lower liquid level sensor 42 respectively detect the upper limit liquid level and the lower limit liquid level of the clean water tank 1, so as to perform or stop the water replenishment operation, and prevent the liquid level in the clean water tank 1 from being too high or too low.

[0074] Preferably, the clean water tank system further comprises a visible water pipe 6, which is vertically arranged on one side of the clean water tank body 1, the upper end of the visible water pipe 6 is connected to a first drainage pipe 7, and the lower end of the visible water pipe 6 is in communication with the lower part of the clean water tank body 1. By using the visible water pipe 6, the water level in the clean water tank body 1 can be observed from the exterior surface, which is convenient for equipment repair and maintenance, and the first drainage pipe 7 can be used to drain clean water that is higher than the normal liquid level to prevent the liquid level in the clean water tank body 1 from being too high.

[0075] Furthermore, the clean water tank system includes a bracket 8 , which is vertically arranged on one side of the clean water tank body 1 , and the visible water pipe 6 is fixed on the bracket 8 .

[0076] Quick-connect connectors 9 are installed at both ends of the visible water pipe 6. The quick-connect plug at the upper end of the visible water pipe 6 is connected to the first drainage pipe 7, and the quick-connect plug at the lower end of the visible water pipe 6 is connected to the lower part of the clean water tank 1.

[0077] The visible water pipe 6 is fixed by the bracket 8 to enhance the firmness of the fixation of the visible water pipe 6; the visible water pipe 6 can be quickly disassembled and assembled with the clean water tank 1 and the first drainage pipe 7 by the quick plug connector 9, which is convenient for maintenance.

[0078] Furthermore, the clean water tank system also includes a second drainage pipe 10 , the inner diameter of the second drainage pipe 10 is greater than or equal to the outer diameter of the first drainage pipe 7 , and the second drainage pipe 10 is sleeved on the outlet of the first drainage pipe 7 .

[0079] The first drainage tube 7 is arranged horizontally, and the second drainage tube 10 is arranged vertically.

[0080] In the extremely rare case of excess clean water, the second drainage pipe 10 can further drain the clean water drained from the first drainage pipe 7 to the ground, completely solving the problem of clean water entering the robot.

[0081] Preferably, a water outlet is provided at the lower portion of the clean water tank 1 .

[0082] The clean water tank system further comprises a filter 11 and a water outlet pump 12, wherein the filter 11 is connected between the water outlet and the water outlet pump 12. The water outlet pump 12 of this embodiment is preferably a diaphragm pump.

[0083] The common form of spraying clean water in existing cleaning robots is to connect a diaphragm pump + ball valve to the clean water tank. The pump or valve is often damaged due to impurities in the clean water, which increases the workload of subsequent repair and maintenance of the equipment. The filter 11 can solve the damage to the pump or valve caused by impurities in the clean water, reduce the workload of repair and maintenance, and extend its service life.

[0084] The working principle of the clean water tank system of the present invention:

[0085] The drainage surface D is the lower plane of the first drainage tube 7 , and the drainage surface D is lower than the water injection port surface E and higher than the liquid level C of the water injection part; the liquid level C of the water injection part is higher than the upper liquid level surface B.

[0086] Insert the replenishing water pipe connected to the outlet of the replenishing water pump into the water inlet 21, and inject water into the clean water tank 1. The clean water flows to the water injection part 2, passes through the shielding part 31 and the buffer part 32, and enters the clean water tank 1 until it is flush with the plane where the groove is located (the liquid level C of the water injection part), and the replenishment of clean water is completed. In the static state, the liquid level C of the water injection part is the highest level of the clean water in the clean water tank. At this time, there is no clean water in the water injection part 2.

[0087] When the water level in the clean water tank 1 drops to the lower liquid level A, the lower liquid level sensor 42 is triggered, thereby starting the automatic clean water replenishment command, filling the clean water tank 1 with water, and the clean water flows to the water filling part 2, passes through the shielding buffer part 3 and enters the clean water tank 1, and the clean water replenishment ends when it reaches the upper liquid level B. Since the liquid level sensor has a time delay, the upper liquid level is finally the liquid level C of the water filling part. At this time, there is no clean water in the water filling part 2.

[0088] When the cleaning robot is in a bumpy state, the clean water in the clean water tank 1 will surge violently, and the surging clean water will first pass through the shielding plate 5. For the surging clean water, the shielding plate 5 will greatly reduce the amplitude of the surging clean water and the strength of the impact.

[0089] When the clean water with greatly weakened surging condition flows to the shielding portion 31, most of the clean water can be shielded on the side of the shielding portion 31 close to the clean water tank 1. A small amount of clean water flowing to the water injection portion 2 has a very small surging amplitude at this time, and the water volume is very small, so this part of clean water cannot flow out through the water injection port 21, and this part of clean water can flow back into the clean water tank 1 through the groove and the buffer portion 32.

[0090] In rare cases, the delay time of the upper liquid level sensor 41 is too long, resulting in too much clean water being injected, and the clean water level exceeds the liquid level C of the water injection part until the drainage surface D. The clean water will flow to the ground along the quick-connect connector 9, the visible water pipe 6, the first drainage pipe 7, and the second drainage pipe 10. The operator can also judge the liquid level in the clean water tank 1 by observing the liquid level in the visible water pipe 6.

[0091] The clean water tank system of the present invention is suitable for a cleaning robot with automatic sewage discharge.

[0092] The present invention further provides a cleaning robot, comprising a frame 13 and the clean water tank system, wherein the clean water tank system is arranged on the frame 13 .

[0093] The application scenarios of the cleaning robot of the present invention include large shopping malls, airports, factories, libraries, railway stations, theaters and other places that require large-scale cleaning.

[0094] Compared with the prior art, the clean water tank system and the cleaning robot of the present invention can use the shielding buffer part 3 to buffer and shield the clean water, reduce the strength and impact of the clean water surge, reduce the possibility of the clean water overflowing from the water injection part 2, and maximize the use of the volume of the clean water tank 1, solve the problem of clean water entering the inside of the cleaning robot from the clean water tank 1; use the liquid level detection component 4 to automatically detect the liquid level in the clean water tank 1, so as to start the automatic water replenishment command, and have a high degree of automation and intelligence. The clean water tank system and the cleaning robot of the present invention have the characteristics of compact structure, reasonable layout, ingenious design, good buffering and shielding effect, good anti-surge effect, and automation.

[0095] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A clean water tank system, characterized in that: include: Clean water tank; A water injection part, which is arranged on the upper part of the clean water tank body and is communicated with the clean water tank body, and is provided with a water injection port; A shielding buffer portion, the shielding buffer portion is communicated between the clean water tank body and the water injection portion, the shielding buffer portion includes a buffer portion, and the buffer portion is communicated with the clean water tank body; A liquid level detection component, the liquid level detection component is arranged on the clean water tank body to detect the liquid level in the clean water tank body; The clean water tank system also includes a shielding plate, which is vertically arranged in the space of the buffer part; an exhaust hole is opened at the upper part of the shielding plate, and a drainage hole is opened at the lower part; a gap is set between the lower end of the shielding plate and the bottom plate of the buffer part.

2. The clean water tank system according to claim 1, characterized in that: The bottom plate of the water injection part is inclined downward from the water injection port toward the clean water tank body; The shielding buffer portion includes a shielding portion; The shielding portion is connected between the water injection portion and the buffer portion; The shielding portion and the buffer portion are arranged in a stepped shape from top to bottom.

3. The clean water tank system according to claim 2, characterized in that: The upper end of the shielding portion is higher than the plane where the bottom plate of the water injection portion is located; A groove is provided in the middle of the shielding portion, and the bottom surface of the groove is lower than the plane where the bottom plate of the water injection portion is located; The bottom plate of the buffer portion is inclined downward toward the clean water tank body from the connection point between the bottom plate and the shielding portion.

4. The clean water tank system according to claim 1, characterized in that: The clean water tank system also includes a visible water pipe, which is vertically arranged on one side of the clean water tank body. The upper end of the visible water pipe is connected to a first drainage pipe, and the lower end of the visible water pipe is communicated with the lower part of the clean water tank body.

5. The clean water tank system according to claim 4, characterized in that: The clean water tank system comprises a bracket, the bracket is vertically arranged on one side of the clean water tank body, and the visible water pipe is fixed on the bracket; Both ends of the visible water pipe are respectively installed with quick-connect connectors, the quick-connect plug located at the upper end of the visible water pipe is connected to the first drainage pipe, and the quick-connect plug located at the lower end of the visible water pipe is connected to the lower part of the clean water tank.

6. The clean water tank system according to claim 5, characterized in that: The clean water tank system further comprises a second drainage pipe, the inner diameter of the second drainage pipe is greater than or equal to the outer diameter of the first drainage pipe, and the second drainage pipe is sleeved on the outlet of the first drainage pipe; The first drainage tube is arranged horizontally, and the second drainage tube is arranged vertically.

7. The clean water tank system according to any one of claims 1 to 6, characterized in that: A water outlet is provided at the lower part of the clean water tank; The clean water tank system further comprises a filter and a water outlet pump, wherein the filter is connected between the water outlet and the water outlet pump.

8. The clean water tank system according to any one of claims 1 to 6, characterized in that: The liquid level detection component comprises an upper liquid level sensor and a lower liquid level sensor, and the upper liquid level sensor and the lower liquid level sensor are respectively arranged at the upper part and the lower part of the clean water tank body.

9. A cleaning robot, characterized in that: It comprises a frame and the clean water tank system according to any one of claims 1 to 8, wherein the clean water tank system is arranged on the frame.

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