Liquid path system, clear water tank assembly and cleaning robot

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a liquid path system, a clear water tank assembly and a cleaning robot, and solves the problem that the service life of the liquid path system of the cleaning robot is short. The liquid path system comprises a first water pump, a second water pump and a first multi-way connecting piece, an inlet of the first water pump and an inlet of the second water pump are communicated with a clean water tank of the cleaning robot, a first inlet of the first multi-way connecting piece is communicated with an outlet of the first water pump, and a second inlet of the first multi-way connecting piece is communicated with an outlet of the second water pump. And an outlet of the first multi-way connecting piece is communicated with at least one object to be supplied with liquid. In the process of supplying the liquid to the object to be supplied with the liquid, the first water pump and the second water pump operate alternately, so that overlong operation time of the first water pump or the second water pump is avoided, abrasion and failure rate of the first water pump and the second water pump are reduced, the service life of the water pumps is prolonged, and the service life of the liquid path system is further prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a liquid circuit system, a clean water tank assembly and a cleaning robot. Background Art

[0002] At present, the liquid circuit system of equipment with floor scrubbing function needs to use a water pump to transport or pressurize the liquid, and the service life of the liquid circuit system is limited by the service life of the water pump. The water pump continues to work during the liquid supply process. If the operation time is too long, it will increase the wear and failure rate of the water pump, resulting in a shorter service life of the water pump, and then the service life of the liquid circuit system. Utility Model Content

[0003] In view of this, the embodiments of the present application provide a fluid circuit system, a clean water tank assembly and a cleaning robot, which solve the problem of the short service life of the fluid circuit system of the cleaning robot.

[0004] In the first aspect, an embodiment of the present application provides a liquid circuit system, which is applied to a cleaning robot and is configured to provide cleaning water for the cleaning robot; wherein the liquid circuit system includes: a first water pump, wherein the inlet of the first water pump is connected to the clean water tank of the cleaning robot; a second water pump, wherein the inlet of the second water pump is connected to the clean water tank of the cleaning robot; a first multi-way connector, wherein the first inlet of the first multi-way connector is connected to the outlet of the first water pump, the second inlet of the first multi-way connector is connected to the outlet of the second water pump, and the outlet of the first multi-way connector is connected to at least one object to be supplied with liquid; wherein, in the process of supplying liquid to the object to be supplied with liquid, the first water pump and the second water pump operate alternately.

[0005] In some embodiments, the liquid circuit system also includes: a cleaning liquid pump, the inlet of the cleaning liquid pump is connected to the cleaning liquid container of the cleaning robot; a one-way valve, the inlet of the one-way valve is connected to the outlet of the cleaning liquid pump; a second multi-way connector, the first inlet of the second multi-way connector is connected to the outlet of the one-way valve, and the second inlet of the second multi-way connector is connected to the outlet of the first multi-way connector; wherein, the outlet of the second multi-way connector is connected to the object to be supplied with liquid.

[0006] In some embodiments, the liquid circuit system further includes: a flow meter, the inlet of the flow meter is connected to the outlet of the second multi-way connector, and the outlet of the flow meter is connected to the object to be supplied with liquid.

[0007] In some embodiments, the fluid circuit system further includes: a valve, wherein an inlet of the valve is connected to an outlet of the first multi-way connector, and an outlet of the valve is connected to a second inlet of the second multi-way connector.

[0008] In some embodiments, the liquid circuit system also includes: a filter, the inlet of the filter is connected to the clean water tank; a multi-way ball valve, the inlet of the multi-way ball valve is connected to the outlet of the filter; a third multi-way connector, the inlet of the third multi-way connector is connected to the first outlet of the multi-way ball valve, the first outlet of the third multi-way connector is connected to the first water pump, and the second outlet of the third multi-way connector is connected to the second water pump; a self-cleaning water pump, the inlet of the self-cleaning water pump is connected to the second outlet of the multi-way ball valve, and the outlet of the self-cleaning water pump is connected to the sewage tank of the cleaning robot.

[0009] In the second aspect, an embodiment of the present application provides a clean water tank assembly, which is applied to a cleaning robot and is configured to provide cleaning water for the cleaning robot; wherein the clean water tank assembly includes: a clean water tank, which is configured to hold the cleaning water; the liquid path system described in the first aspect, which is connected to the clean water tank and is configured to transport the cleaning water to the object to be supplied.

[0010] In some embodiments, the clean water tank has a lower chamber and an upper chamber; wherein, the clean water tank assembly further includes: a liquid level window, which is arranged on the outer wall of the clean water tank and is detachably connected to the clean water tank, wherein the liquid level window is connected to the lower chamber of the clean water tank and extends to the upper chamber.

[0011] In some embodiments, the clean water tank has a lower chamber and an upper chamber; wherein the clean water tank assembly further includes: a liquid level meter, disposed in the clean water tank and configured to detect the liquid level height in the clean water tank; and a liquid level sensor, disposed on the outer wall of the clean water tank and extending into the upper chamber.

[0012] In some embodiments, the clean water tank has a first water inlet; wherein, the clean water tank assembly further includes: a water inlet box, connected to the first water inlet, the water inlet box having a second water inlet; an elastic shielding member, disposed at the second water inlet, configured to shield the second water inlet, wherein the elastic shielding member has a linear opening, and the linear opening is configured to be able to deform under the pressure applied by a water inlet pipe so that the water inlet pipe can enter the water inlet box through the linear opening.

[0013] In some embodiments, the clean water tank assembly also includes: an overflow port, which is arranged at the top of the clean water tank; an overflow pipe, whose inlet is connected to the overflow port, and whose outlet is located at the bottom of the cleaning robot; a maintenance port, which is arranged at the top of the clean water tank; a tank cover, which can expose or close the maintenance port; a breathable valve, which is arranged at the top of the clean water tank; and a drain valve, which is arranged at the bottom of the clean water tank.

[0014] In a third aspect, an embodiment of the present application provides a cleaning robot, comprising: the clean water tank assembly described in the second aspect.

[0015] A liquid circuit system provided in an embodiment of the present application is applied to a cleaning robot and is configured to provide cleaning water for the cleaning robot. The liquid circuit system includes: a first water pump, a second water pump and a first multi-way connector, the inlet of the first water pump is connected to the clean water tank of the cleaning robot, the inlet of the second water pump is connected to the clean water tank of the cleaning robot, the first inlet of the first multi-way connector is connected to the outlet of the first water pump, the second inlet of the first multi-way connector is connected to the outlet of the second water pump, and the outlet of the first multi-way connector is connected to at least one object to be supplied with liquid. In the process of supplying liquid to the object to be supplied with liquid, the first water pump and the second water pump operate alternately, avoiding the first water pump or the second water pump from operating for too long, so as to reduce the wear and failure rate of the first water pump and the second water pump, thereby increasing the service life of the water pump and further increasing the service life of the liquid circuit system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same components.

[0017] Figure 1 Shown is a schematic structural diagram of a clean water tank assembly provided in one embodiment of the present application.

[0018] Figure 2 Shown Figure 1 A partial enlarged view of area A of the clean water tank assembly is shown.

[0019] Figure 3 Shown is a schematic structural diagram of a liquid circuit system and a clean water tank provided in one embodiment of the present application.

[0020] Figure 4 Shown is a schematic structural diagram of a clean water tank assembly provided in another embodiment of the present application.

[0021] Figure 5 Shown Figure 4 A partial enlarged view of area B of the clean water tank assembly is shown.

[0022] Figure 6 Shown is a schematic structural diagram of a liquid system and a clean water tank provided in another embodiment of the present application.

[0023] Figure 7 Shown is a schematic structural diagram of a liquid system and a clean water tank provided in another embodiment of the present application.

[0024] Figure 8 Shown is a schematic structural diagram of a liquid system and a clean water tank provided in another embodiment of the present application.

[0025] Fig. 9 Shown is a schematic structural diagram of a clean water tank assembly provided in another embodiment of the present application.

[0026] Fig.10 Shown is a schematic structural diagram of a cleaning robot provided in one embodiment of the present application.

[0027] Reference numerals:

[0028] 123. Cleaning robot; 1. Clean water tank assembly; 10. Liquid circuit system; 100. First water pump; 101. Inlet of the first water pump; 102. Outlet of the first water pump; 200. Second water pump; 201. Inlet of the second water pump; 202. Outlet of the second water pump; 300. First multi-way connector; 301. First inlet of the first multi-way connector; 302. Second inlet of the first multi-way connector; 303. Outlet of the first multi-way connector; 400. Cleaning liquid pump; 401 , inlet of the cleaning liquid pump; 402, outlet of the cleaning liquid pump; 500, one-way valve; 501, inlet of the one-way valve; 502, outlet of the one-way valve; 600, second multi-way connector; 601, first inlet of the second multi-way connector; 602, second inlet of the second multi-way connector; 603, outlet of the second multi-way connector; 700, flow meter; 701, inlet of the flow meter; 702, outlet of the flow meter; 800, valve; 801, inlet of the valve; 802, outlet of the valve outlet; 900, filter; 901, filter inlet; 902, filter outlet; 1000, multi-way ball valve; 1001, multi-way ball valve inlet; 1002, multi-way ball valve first outlet; 1003, multi-way ball valve second outlet; 1100, third multi-way connector; 1101, third multi-way connector inlet; 1102, third multi-way connector first outlet; 1103, third multi-way connector second outlet; 20, clean water tank; 21, clean water tank Top; 22, bottom of clean water tank; 210, lower chamber; 220, upper chamber; 230, first water inlet; 240, overflow port; 250, maintenance port; 30, liquid level window; 40, liquid level gauge; 50, liquid level sensor; 60, water filling box; 610, second water inlet; 70, elastic shielding member; 710, linear opening; 80, overflow pipe; 90, tank cover; 91, air valve; 92, drain valve; 93, connecting pipe; 2, cleaning liquid container; 3, object to be supplied with liquid. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Equipment with floor washing function, such as cleaning robots, also known as sweeping robots, automatic sweepers, etc., can automatically clean the floor by scrubbing and vacuuming. With the continuous development of economy and the rapid improvement of science and technology, more and more cleaning robots have appeared in people's daily life, because they can automatically clean the floor and gradually replace manual cleaning.

[0031] At present, the liquid circuit system of the cleaning robot needs to use a water pump to transport or pressurize the liquid. The service life of the liquid circuit system is limited by the service life of the water pump. The water pump operates continuously during the liquid supply process. If the operation time is too long, it will increase the wear and failure rate of the water pump, resulting in a shorter service life of the water pump, and then the service life of the liquid circuit system.

[0032] In view of the above problems, an embodiment of the present application provides a liquid circuit system, which is applied to a cleaning robot and is configured to provide cleaning water for the cleaning robot. The liquid circuit system includes: a first water pump, a second water pump and a first multi-way connector, the inlet of the first water pump is connected to the clean water tank of the cleaning robot, the inlet of the second water pump is connected to the clean water tank of the cleaning robot, the first inlet of the first multi-way connector is connected to the outlet of the first water pump, the second inlet of the first multi-way connector is connected to the outlet of the second water pump, and the outlet of the first multi-way connector is connected to at least one object to be supplied with liquid. In the process of supplying liquid to the object to be supplied with liquid, the first water pump and the second water pump operate alternately, avoiding the first water pump or the second water pump from operating for too long, so as to reduce the wear and failure rate of the first water pump and the second water pump, thereby increasing the service life of the water pump and further increasing the service life of the liquid circuit system.

[0033] The specific structure of the liquid circuit system and the clean water tank assembly is described below in conjunction with the accompanying drawings.

[0034] Figure 1 Shown is a schematic structural diagram of a clean water tank assembly provided in one embodiment of the present application. Figure 2 Shown Figure 1 A partial enlarged view of area A is shown. Figure 3 Shown is a schematic structural diagram of a liquid circuit system and a clean water tank provided in one embodiment of the present application. Fig.10 The figure is a schematic diagram of the structure of a cleaning robot provided by an embodiment of the present application. Figures 1 to 3 as well as Fig.10As shown, the liquid circuit system 10 is applied to the cleaning robot 123 and is configured to provide cleaning water for the cleaning robot 123. The liquid circuit system 10 includes: a first water pump 100, a second water pump 200 and a first multi-way connector 300, the inlet 101 of the first water pump is connected to the clean water tank 20 of the cleaning robot 123, the inlet 201 of the second water pump is connected to the clean water tank 20 of the cleaning robot 123, the first inlet 301 of the first multi-way connector is connected to the outlet 102 of the first water pump, the second inlet 302 of the first multi-way connector is connected to the outlet 202 of the second water pump, and the outlet 303 of the first multi-way connector is connected to at least one object 3 to be supplied with liquid, and in the process of supplying liquid to the object 3 to be supplied with liquid, the first water pump 100 and the second water pump 200 work alternately.

[0035] Figure 3 Shows the flow of clean water, e.g. Figure 3 As shown, the clean water in the clean water tank 20 flows into the first water pump 100 or the second water pump 200, and flows out of the first water pump 100 or the second water pump 200 and then flows into the first multi-way connector 300. Subsequently, the clean water flows out of the first multi-way connector 300 and flows to the object 3 to be supplied with liquid, so as to supply liquid to the object 3 to be supplied with liquid.

[0036] The object 3 to be supplied with liquid can be a roller brush assembly or a dust collecting assembly without a roller brush. The present application does not specifically limit the structure of the object 3 to be supplied with liquid. The cleaning water in the clean water tank 20 can be clean water or a mixture of clean water and cleaning liquid. The present application does not specifically limit the composition of the cleaning water.

[0037] The first water pump 100 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The second water pump 200 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc.

[0038] The first multi-way connector 300 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnetism, etc. The first multi-way connector 300 can be a three-way connector, a four-way connector, or other types of connectors. The present application does not specifically limit the structure of the first multi-way connector 300.

[0039] In the process of supplying liquid to the object 3 to be supplied with liquid, the first water pump 100 and the second water pump 200 operate alternately, avoiding the first water pump 100 or the second water pump 200 from operating for too long, so as to reduce the wear and failure rate of the first water pump 100 and the second water pump 200, thereby increasing the service life of the water pump and further increasing the service life of the liquid circuit system 10.

[0040] In some embodiments, Figure 4 and Figure 5As shown, the liquid circuit system 10 also includes: a cleaning liquid pump 400, a one-way valve 500 and a second multi-way connector 600, the inlet 401 of the cleaning liquid pump is connected to the cleaning liquid container 2 of the cleaning robot 123, the inlet 501 of the one-way valve is connected to the outlet 402 of the cleaning liquid pump, the first inlet 601 of the second multi-way connector is connected to the outlet 502 of the one-way valve, the second inlet 602 of the second multi-way connector is connected to the outlet 303 of the first multi-way connector, and the outlet 603 of the second multi-way connector is connected to the object 3 to be supplied with liquid.

[0041] Figure 6 Shown is a schematic structural diagram of a liquid system and a clean water tank provided in another embodiment of the present application. Figure 6 Shows the flow of clean water, e.g. Figure 6 As shown, the cleaning liquid in the cleaning liquid container 2 of the cleaning robot 123 flows into the cleaning liquid pump 400, and then the cleaning liquid flows out of the cleaning liquid pump 400 and flows through the one-way valve 500 and then flows into the second multi-way connector 600. The clean water in the clean water tank 20 flows into the first water pump 100 or the second water pump 200, and flows out of the first water pump 100 or the second water pump 200 and then flows into the first multi-way connector 300, and then the clean water flows out of the first multi-way connector 300 and flows into the second multi-way connector 600, and the cleaning liquid and the clean water are mixed in the second multi-way connector 600 to form a mixed liquid, and the mixed liquid flows out of the second multi-way connector 600 and finally flows to the object 3 to be supplied with liquid. The liquid path system 10 can realize the supply of liquid to the object 3 to be supplied with liquid after the cleaning liquid and the clean water are mixed, and the mixed liquid formed by the mixture of the cleaning liquid and the clean water can improve the cleanliness of the floor cleaning by the cleaning robot 123.

[0042] The one-way valve 500 is provided to prevent the clean water from flowing back to the cleaning liquid container 2 of the cleaning robot 123. The one-way valve 500 may have corrosion resistance to increase the service life of the one-way valve 500.

[0043] The cleaning liquid pump 400 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The one-way valve 500 can be detachably connected to the cleaning liquid pump 400 by means of bolts, nuts, screws, buckles, magnets, etc.

[0044] The second multi-way connector 600 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnetism, etc. The second multi-way connector 600 can be a three-way connector, a four-way connector, or other types of connectors. The present application does not specifically limit the structure of the second multi-way connector 600.

[0045] In some embodiments, Figure 2 and Figure 5As shown, the fluid system 10 further comprises a flow meter 700, the inlet 701 of the flow meter is connected to the outlet 603 of the second multi-way connector, and the outlet 702 of the flow meter is connected to the object 3 to be supplied with liquid. The flow meter 700 is used to detect the amount of liquid supplied by the fluid system 10 to the object 3 to be supplied with liquid.

[0046] The flow meter 700 may be a turbine flow meter, an ultrasonic flow meter, a magnetic induction flow meter, a differential pressure flow meter, or other types of flow meters, and the present application does not specifically limit the type of the flow meter 700. The flow meter 700 may be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnetic attraction, etc.

[0047] like Figure 6 As shown, the mixed liquid formed by the cleaning liquid and the clean water flows out from the second multi-way connector 600, flows through the flow meter 700, and finally flows to the object 3 to be supplied with liquid.

[0048] In some embodiments, Figure 2 and Figure 5 As shown, the liquid circuit system 10 further includes a valve 800, the inlet 801 of the valve is connected to the outlet 303 of the first multi-way connector, and the outlet 802 of the valve is connected to the second inlet 602 of the second multi-way connector. The valve 800 is used to control the on and off of the clean water.

[0049] Figure 7 FIG. 1 is a schematic diagram of the structure of a liquid circuit system and a clean water tank provided in another embodiment of the present application. Figure 7 As shown, when the valve 800 is in the open state, clean water flows out from the first multi-way connector 300 , flows through the valve 800 , and then flows into the second multi-way connector 600 .

[0050] The valve 800 may be a manual valve, an electromagnetic valve, an electric valve, or other types of valves. The present application does not specifically limit the type of the valve 800.

[0051] The valve 800 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, snaps, magnetism, etc.

[0052] In some embodiments, Figure 1 , Figure 4 and Figure 5As shown, the liquid circuit system 10 also includes: a filter 900, a multi-way ball valve 1000, a third multi-way connector 1100 and a self-cleaning water pump (not shown in the figure). The inlet 901 of the filter is connected to the clean water tank 20, the inlet 1001 of the multi-way ball valve is connected to the outlet 902 of the filter, the inlet 1101 of the third multi-way connector is connected to the first outlet 1002 of the multi-way ball valve, the first outlet 1102 of the third multi-way connector is connected to the first water pump 100, and the second outlet 1103 of the third multi-way connector is connected to the second water pump 200. The inlet of the self-cleaning water pump is connected to the second outlet 1003 of the multi-way ball valve, and the outlet of the self-cleaning water pump is connected to the sewage tank (not shown in the figure) of the cleaning robot 123.

[0053] Figure 8 FIG. 1 is a schematic diagram of the structure of a liquid circuit system and a clean water tank provided in another embodiment of the present application. Figure 8 As shown, the cleaning liquid in the cleaning liquid container 2 of the cleaning robot 123 flows into the cleaning liquid pump 400, and then the cleaning liquid flows out of the cleaning liquid pump 400 and flows through the one-way valve 500 and then flows into the second multi-way connector 600. The clean water in the clean water tank 20 flows into the filter 900, and flows out of the filter 900 and then flows into the multi-way ball valve 1000, a part of the clean water flows out of the multi-way ball valve 1000 and flows into the third multi-way connector 1100, and then the clean water flows out of the third multi-way connector 1100 and flows into the first water pump 100 or the second water pump 200, the clean water flows out of the first water pump 100 or the second water pump 200 and flows into the first multi-way connector 300, the clean water flows out of the first multi-way connector 300 and flows into the valve 800, and the clean water flows out of the valve 800 and flows into the second multi-way connector 600. The clean water and the cleaning liquid are mixed in the second multi-way connector 600 to form a mixed liquid, which flows out of the second multi-way connector 600, flows through the flow meter 700, and finally flows to the object to be supplied with liquid 3, so as to supply liquid to the object to be supplied with liquid 3. Another part of the clean water flows out of the multi-way ball valve 1000 and flows into the self-cleaning water pump, and then another part of the clean water flows out of the self-cleaning water pump and flows into the sewage tank of the cleaning robot 123.

[0054] The filter 900 is used to filter the clean water in the clean water tank 20 to remove impurities in the clean water and improve the cleanliness of the clean water.

[0055] The filter 900 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The multi-way ball valve 1000 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc.

[0056] The third multi-way connector 1100 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The third multi-way connector 1100 can be a three-way connector, a four-way connector, or other types of connectors. The present application does not specifically limit the structure of the third multi-way connector 1100.

[0057] The sewage collected from the ground by the cleaning robot 123 is temporarily stored in the sewage tank, and when the sewage tank is full or convenient to discharge the sewage, the sewage in the sewage tank can be discharged. The self-cleaning water pump is used to self-clean the sewage tank of the cleaning robot 123.

[0058] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the clean water tank assembly 1 is applied to a cleaning robot 123 and is configured to provide clean water for the cleaning robot 123. The clean water tank assembly 1 comprises: the liquid circuit system 10 and the clean water tank 20 mentioned in the above embodiment, the clean water tank 20 is configured to contain clean water, the liquid circuit system 10 is connected to the clean water tank 20, and is configured to transport the clean water to the object 3 to be supplied with liquid.

[0059] In some embodiments, Figure 4 As shown, the clean water tank 20 has a lower chamber 210 and an upper chamber 220. The clean water tank assembly 1 further includes a liquid level window 30, which is disposed on the outer side wall of the clean water tank 20 and is detachably connected to the clean water tank 20. The liquid level window 30 is connected to the lower chamber 210 of the clean water tank 20 and extends to the upper chamber 220. The clean water tank 20 is connected to the liquid level window 30, so that the liquid level in the clean water tank 20 can be observed conveniently.

[0060] The liquid level window 30 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The liquid level window 30 can be a tubular structure, a transparent material, or other structures including a window, and the window is made of a transparent material, which can be organic glass, PVC material, ABS material, or other types of transparent materials. The present application does not specifically limit the structure of the liquid level window 30.

[0061] In some embodiments, Figure 4 and Fig. 9As shown, the clean water tank 20 has a lower chamber 210 and an upper chamber 220, and the clean water tank assembly 1 further includes: a liquid level meter 40 and a liquid level sensor 50, wherein the liquid level meter 40 is disposed in the clean water tank 20 and is configured to detect the liquid level in the clean water tank 20. The liquid level sensor 50 is disposed on the outer wall of the clean water tank 20 and extends into the upper chamber 220, and is configured to detect the liquid level in the clean water tank 20. The liquid level meter 40 and the liquid level sensor 50 are used to dually detect the liquid level in the clean water tank 20 to prevent the liquid level in the clean water tank 20 from being too high and overflowing.

[0062] For example, Figure 4 and Fig. 9 As shown, the detection part of the liquid level meter 40 is arranged in the clean water tank 20, and the fixed part of the liquid level meter 40 can be connected to the clean water tank 20 and exposed outside the clean water tank 20. The liquid level meter 40 can be a remote sensing float type liquid level meter, a pressure type liquid level meter, an ultrasonic liquid level meter, or other types of liquid level meters. The present application does not specifically limit the type of the liquid level meter 40. The liquid level meter 40 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnetic attraction, etc.

[0063] The liquid level sensor 50 can be a float type liquid level transmitter, a buoy type liquid level transmitter, a capacitive liquid level transmitter, or other types of liquid level sensors. The present application does not specifically limit the type of the liquid level sensor 50. The liquid level sensor 50 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc.

[0064] In some embodiments, Figure 1 As shown, the clean water tank 20 has a first water inlet 230, and the clean water tank assembly 1 also includes: a water adding box 60 and an elastic shielding member 70, the water adding box 60 is connected to the first water inlet 230, the water adding box 60 has a second water inlet 610, the elastic shielding member 70 is arranged at the second water inlet 610, and is configured to shield the second water inlet 610, the elastic shielding member 70 has a linear opening 710, and the linear opening 710 is configured to be able to deform under the pressure applied by a water adding pipe (not shown in the figure) to allow the water adding pipe to enter the water adding box 60 through the linear opening 710, while allowing errors to occur when the water adding pipe is adding water.

[0065] Exemplarily, the water adding box 60 is connected to the first water adding port 230 via a connecting pipe 93 .

[0066] The shape of the water adding box 60 can be circular, rectangular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the water adding box 60.

[0067] The shape of the first water inlet 230 can be circular, rectangular, or other polygonal or irregular shapes, and the present application does not specifically limit the shape of the first water inlet 230. The shape of the second water inlet 610 can be circular, rectangular, or other polygonal or irregular shapes, and the present application does not specifically limit the shape of the second water inlet 610.

[0068] The shape of the elastic shielding member 70 may be circular, rectangular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the elastic shielding member 70 .

[0069] The material of the elastic shielding member 70 may be a non-metallic rubber material, and the rubber material may be carbon chain rubber, nitrile rubber, butyl rubber, or other types of rubber materials. The present application does not specifically limit the material of the elastic shielding member 70 .

[0070] The shape of the linear opening 710 may be a rectangle, a cross, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the linear opening 710 .

[0071] The shape of the connecting tube 93 may be rectangular, circular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the connecting tube 93 .

[0072] In some embodiments, Figure 1 As shown, the clean water tank assembly 1 further includes: an overflow port 240, an overflow pipe 80, a maintenance port 250, a tank cover 90, a vent valve 91 and a drain valve 92. The overflow port 240 is arranged at the top 21 of the clean water tank, the inlet 810 of the overflow pipe is connected to the overflow port 240, and the outlet 820 of the overflow pipe is located at the bottom of the cleaning robot 123. The overflow port 240 and the overflow pipe 80 are arranged to prevent the clean water tank 20 from being overfilled with water and causing water to overflow from the first water inlet 230. The maintenance port 250 is arranged at the top 21 of the clean water tank, and the maintenance port 250 is arranged to facilitate the installation of the liquid level meter 40, and to facilitate the maintenance and cleaning of the clean water tank 20. The tank cover 90 can expose or close the maintenance port 250, the vent valve 91 is arranged at the top 21 of the clean water tank, and the drain valve 92 is arranged at the bottom 22 of the clean water tank for drainage.

[0073] The shape of the overflow port 240 may be circular, rectangular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the overflow port 240 .

[0074] The cross-sectional shape of the overflow pipe 80 may be a rectangular ring, a circular ring, or other polygonal rings or irregular rings. The present application does not specifically limit the shape of the overflow pipe 80 .

[0075] The shape of the maintenance opening 250 may be circular, rectangular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the maintenance opening 250 .

[0076] The shape of the box cover 90 can be circular, rectangular, or other polygonal or irregular shapes. The present application does not specifically limit the shape of the box cover 90. The box cover 90 can be set separately from the clean water tank 20. The box cover 90 is buckled with the maintenance opening 250 to close the maintenance opening 250, and the box cover 90 is removed to expose the maintenance opening 250. One side of the box cover 90 can also be hinged to the clean water tank 20, and the box cover 90 can be flipped by flipping the other side of the box cover 90 to expose or close the maintenance opening 250.

[0077] The material of the air-permeable valve 91 can be metal or non-metal. The metal can be stainless steel, aluminum alloy, brass, or other types of metal; the non-metal can be plastic, ceramic, or other types of non-metal. The present application does not specifically limit the material of the air-permeable valve 91.

[0078] The drain valve 92 can be detachably connected to the clean water tank 20 by means of bolts, nuts, screws, buckles, magnets, etc. The drain valve 92 can be a manual drain valve or an automatic drain valve, and the present application does not specifically limit the type of the drain valve 92.

[0079] Fig.10 The figure is a schematic diagram of the structure of a cleaning robot provided by an embodiment of the present application. Fig.10 As shown, the cleaning robot 123 includes: the clean water tank assembly 1 mentioned in the above embodiment, the cleaning liquid container 2 and the object to be supplied with liquid 3. Since the cleaning robot 123 includes the clean water tank assembly 1, the cleaning robot 123 has all the technical features and technical effects of the clean water tank assembly 1, which will not be repeated here.

[0080] The phrases "one embodiment", "an embodiment", etc. mentioned in the specification indicate that the embodiment described may include a specific feature, structure or characteristic, but not every embodiment may include the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments, whether explicitly or not explicitly described.

[0081] It should be understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0082] Additionally, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one component or feature to other components or features as shown in the figures. The spatially relative terms are intended to encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0083] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0084] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid circuit system, characterized in that: Applied to a cleaning robot, and configured to provide cleaning water for the cleaning robot; wherein the liquid circuit system comprises: a first water pump, wherein an inlet of the first water pump is connected to a clean water tank of the cleaning robot; a second water pump, wherein an inlet of the second water pump is connected to a clean water tank of the cleaning robot; a first multi-way connector, wherein a first inlet of the first multi-way connector is connected to an outlet of the first water pump, a second inlet of the first multi-way connector is connected to an outlet of the second water pump, and an outlet of the first multi-way connector is connected to at least one object to be supplied with liquid; Wherein, in the process of supplying liquid to the object to be supplied with liquid, the first water pump and the second water pump operate alternately.

2. The fluid circuit system according to claim 1, characterized in that: Also includes: a cleaning liquid pump, wherein an inlet of the cleaning liquid pump is connected to a cleaning liquid container of the cleaning robot; a one-way valve, the inlet of the one-way valve being connected to the outlet of the cleaning liquid pump; a second multi-way connector, wherein a first inlet of the second multi-way connector is communicated with an outlet of the one-way valve, and a second inlet of the second multi-way connector is communicated with an outlet of the first multi-way connector; Wherein, the outlet of the second multi-way connector is communicated with the object to be supplied with liquid.

3. The fluid circuit system according to claim 2, characterized in that: Also includes: A flow meter, wherein the inlet of the flow meter is connected to the outlet of the second multi-way connector, and the outlet of the flow meter is connected to the object to be supplied with liquid.

4. The liquid circuit system according to claim 2 or 3, characterized in that: Also includes: A valve, wherein the inlet of the valve is communicated with the outlet of the first multi-way connector, and the outlet of the valve is communicated with the second inlet of the second multi-way connector.

5. The fluid circuit system according to any one of claims 1 to 3, characterized in that: Also includes: A filter, wherein the inlet of the filter is in communication with the clean water tank; a multi-way ball valve, wherein the inlet of the multi-way ball valve is connected to the outlet of the filter; a third multi-way connector, wherein the inlet of the third multi-way connector is connected to the first outlet of the multi-way ball valve, the first outlet of the third multi-way connector is connected to the first water pump, and the second outlet of the third multi-way connector is connected to the second water pump; A self-cleaning water pump, wherein the inlet of the self-cleaning water pump is connected to the second outlet of the multi-way ball valve, and the outlet of the self-cleaning water pump is connected to the sewage tank of the cleaning robot.

6. A clean water tank assembly, characterized in that: Applied to a cleaning robot, and configured to provide cleaning water for the cleaning robot; wherein the clean water tank assembly comprises: A clean water tank, configured to contain the clean water; The liquid circuit system according to any one of claims 1 to 5 is connected to the clean water tank and is configured to transport the clean water to an object to be supplied with liquid.

7. The clean water tank assembly according to claim 6, characterized in that: The clean water tank has a lower chamber and an upper chamber; Wherein, the clean water tank assembly also includes: A liquid level window is arranged on the outer side wall of the clean water tank and is detachably connected to the clean water tank, wherein the liquid level window is communicated with the lower chamber of the clean water tank and extends to the upper chamber.

8. The clean water tank assembly according to claim 6, characterized in that: The clean water tank has a lower chamber and an upper chamber; Wherein, the clean water tank assembly also includes: A liquid level meter, disposed in the clean water tank, configured to detect the liquid level in the clean water tank; The liquid level sensor is arranged on the outer side wall of the clean water tank and extends into the upper chamber.

9. The clean water tank assembly according to claim 6, characterized in that: The clean water tank has a first water inlet; Wherein, the clean water tank assembly also includes: A water adding box, connected to the first water adding port, the water adding box having a second water adding port; An elastic shielding member is disposed at the second water filling port and is configured to shield the second water filling port, wherein the elastic shielding member has a linear opening, and the linear opening is configured to be able to deform under the pressure applied by the water filling pipe so that the water filling pipe can enter the water filling box through the linear opening.

10. The clean water tank assembly according to claim 6, characterized in that: Also includes: An overflow port is arranged at the top of the clean water tank; an overflow pipe, the inlet of the overflow pipe being connected to the overflow port, and the outlet of the overflow pipe being located at the bottom of the cleaning robot; A maintenance port is provided on the top of the clean water tank; A box cover capable of exposing or closing the maintenance port; A vent valve is arranged on the top of the clean water tank; A drain valve is arranged at the bottom of the clean water tank.

11. A cleaning robot, characterized in that: include: A clean water tank assembly as claimed in any one of claims 6 to 10.

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