Water automatic exchange assembly and self-cleaning maintenance station

Abstract

The present disclosure provides a water automatic exchange assembly and a self-cleaning maintenance station. The water automatic exchange assembly includes a control device and a water tank assembly. The control device is provided inside the water tank assembly and is configured to realize automatic addition of clean water to the water tank assembly. The water tank assembly includes a clean water tank body, a water inlet pipe configured to add clean water into the clean water tank body, and a floating valve provided on the clean water tank body and configured to move up and down in response to a change in the water level height in the clean water tank body. In response to the floating valve being in the first position, the control device controls the water inlet pipe to stop adding clean water into the clean water tank body. In response to the floating valve being in the second position, the floating valve is configured to block an outlet of the water inlet pipe for adding water to the clean water tank body.

Description

Related Applications

[0001] This disclosure claims the priority of Chinese Patent Application No. 202210573125.8 filed on May 25, 2022, and Chinese Patent Application No. 202221529876.1 filed on June 17, 2022, respectively, and all the disclosure contents of these Chinese patent applications are incorporated herein by reference as part of this application.

Technical Field

[0002] This disclosure relates to the technical field of self-cleaning maintenance stations, and specifically to a water automatic exchange assembly and a self-cleaning maintenance station, as well as a float support device, a clean water tank, and a cleaning device.

Background Art

[0003] In recent years, with the popularization of automatic cleaning devices, the functions of automatic cleaning devices have become increasingly numerous. In particular, the application of automatic cleaning devices that integrate various functions such as sweeping, vacuuming, mopping, dust removal, and mop cloth washing has been increasing. Also, with the development of science and technology and the progress of society, as a labor force for mopping and sweeping, the number of households using self-propelled cleaning appliances such as polishing cleaners and sweepers instead of conventional mops has been increasing.

Summary of the Invention

[0004] The objective of this disclosure is to provide a water automatic exchange assembly and a self-cleaning maintenance station, as well as a float support device, a clean water tank, and a cleaning device.

[0005] Here, the embodiments of the water automatic exchange assembly and the self-cleaning maintenance station are specifically as follows: The embodiments of this disclosure provide a water automatic exchange assembly, the water automatic exchange assembly includes a control device and a water tank assembly, the control device is provided inside the water tank assembly, and is configured to realize automatic addition of clean water to the water tank assembly. The water tank assembly A clean water tank body, and A water inlet pipe configured to add clean water into the clean water tank body, and A floating valve provided on the clean water tank body and configured to move up and down as the water level in the clean water tank body changes, In response to the floating valve being in the first position, the control device stops the water inlet pipe to stop adding clean water into the clean water tank body, and In response to the floating valve being in the second position, the floating valve closes the outlet of the water inlet pipe that injects water into the clean water tank body.

[0006] In some embodiments, the floating valve A first end pivotally connected to a fixed rotation axis, and A pivot rod including a second end provided opposite to the first end, and A floating body part connected to the second end and configured to rotate with respect to the first end of the pivot rod as the water level in the clean water tank body rises until the floating valve is in the first position.

[0007] In some embodiments, in response to the floating valve being in the first position and the water level in the clean water tank body continuing to rise, the floating body part drives the pivot rod to rotate with respect to the fixed rotation axis until the floating valve is in the second position.

[0008] In some embodiments, the floating valve Includes a plug body, the plug body is movably connected to the first end of the pivot rod, and is configured to move towards or away from the outlet of the water inlet pipe by the pressing of the first end of the pivot rod to open and close the outlet of the water inlet pipe.

[0009] In some embodiments, the plug body has a cavity, and the cavity has a downward opening, The first end of the pivot rod is freely movable so as to extend into the cavity, and includes a push rod configured to press against opposite side walls of the cavity as the pivot rod rotates, thereby moving the plug body toward or away from the outlet of the water inlet pipe.

[0010] In some embodiments, the water tank assembly further includes a fixed sleeve shell for accommodating the outlet of the water inlet pipe, the plug body, and the first end of the pivot rod. The first end of the pivot rod is connected between opposite side walls of the fixed sleeve shell via the fixed rotation shaft, and is configured to be rotatable relative to the fixed sleeve shell around the fixed rotation shaft.

[0011] In some embodiments, at least one slide configured to be slidably connected to the plug body is provided on the inner wall of the fixed sleeve shell.

[0012] In some embodiments, at least one slide rail is provided on the outer wall of the plug body, and the slide rail cooperates with the slide to achieve a sliding connection.

[0013] In some embodiments, the plug body further includes a soft rubber gasket provided on an end face that abuts against the outlet of the water inlet pipe of the plug body, and is configured to respond to the movement of the plug body toward or away from the outlet of the water inlet pipe, and the soft rubber gasket opens and closes the outlet of the water inlet pipe.

[0014] In some embodiments, the outlet of the water inlet pipe has a conical structure.

[0015] In some embodiments, a water overflow hole is provided at the top of the clean water tank body and communicates with the outside via a water overflow pipe.

[0016] In some embodiments, the automatic water exchange assembly A signal transmitting component configured to transmit a sensing signal, and a signal sensing component configured to receive the sensing signal, further comprising: One of the signal transmitting component and the signal sensing component is provided inside the floating body part, and the other of the signal transmitting component and the signal sensing component is provided on the side wall of the clean water tank body. In response to the floating body part moving and the floating valve being in the first position, the signal sensing component is triggered, and the control device controls the water inlet pipe to stop adding clean water into the clean water tank body.

[0017] In some embodiments, the signal transmitting component includes a magnet, and the signal sensing component includes a Hall element.

[0018] In some embodiments, a float support device is provided, the float support device is adapted to the water tank assembly, includes a support body, and a sealing member is provided on the outer periphery of the support body. The sealing member includes a first sealing body and a second sealing body connected to the first sealing body. The first sealing body can extend into the assembly hole of the clean water tank body so as to block the gap between the outer wall of the support body and the inner wall of the assembly hole. The second sealing body is abutted against the inner edge of the assembly hole so as to block the inner edge of the assembly hole.

[0019] In some embodiments, the first sealing body includes a connector snapped onto the support body, and at least one sealing ring is provided on the connector that can be interference-fitted with the assembly hole along the axial direction.

[0020] In some embodiments, the sealing ring is integrally formed with the connector.

[0021] In some embodiments, the second sealing body is integrally formed with the first sealing body.

[0022] In some embodiments, a detachable connection member detachably connected to the water tank body is further provided on the support body.

[0023] In some embodiments, the detachable connection member includes at least one connection boss and at least one bolt, and a first threaded hole threadably connected to the bolt is provided on the connection boss.

[0024] In some embodiments, the support body further includes a water inlet pipeline and a float support rack, a cavity for accommodating a float is provided on the float support rack, and the water inlet pipeline communicates with the cavity.

[0025] Embodiments of the present disclosure further provide a self-cleaning maintenance station including a water storage chamber for accommodating the water automatic exchange assembly described in the above embodiments.

[0026] Embodiments of the present disclosure further provide a clean water tank, which includes a water tank body and the above float support device. The water tank body is provided on the main body, assembly holes are provided on the box wall of the water tank body, the float support device is mounted on the assembly holes, a first sealed body of the float support device is located in the assembly holes so as to block a gap between an outer wall of the support body and an inner wall of the assembly holes, and a second sealed body of the float support device is abutted against an inner edge of the assembly holes so as to block the inner edge of the assembly holes.

[0027] In some embodiments, a mounting portion is provided on an inner wall of the water tank body, a second threaded hole is opened on the mounting portion, and a first bolt of the float support device is threadably connected to a first threaded hole on a first tab of the float support device and the second threaded hole so that the float support device is detachably connected to the water tank body.

[0028] Embodiments of the present disclosure provide a cleaning device including a main body and the above clean water tank, and the clean water tank is provided on the main body.

Brief Description of the Drawings

[0029] The accompanying drawings here are incorporated into this specification and form a part of this specification, showing embodiments that conform to the present disclosure and are used to interpret the principles of the present disclosure together with the specification. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these accompanying drawings without creative labor.

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Description of Reference Numerals

[0030] 1000 Self-cleaning Maintenance Station Bottom Plate 2000 Self-cleaning Maintenance Station Body 2100 Dust Collection Chamber 2300 Sewage Chamber 2400 Clean Water Chamber 2600 Tab 2610 Air Pump Port 2620 Sewage Tank Connection Port 2630 Clean Water Tank Connection Port 2640 Soft Rubber Protrusion Point 2700 Water Storage Chamber 2710 Partition Plate 2800 Dust Collection Hood 4000 Clean Water Tank 4100 Clean Water Tank Body 4120 Clean Water Float Ball 4130 Cleaning Liquid Passage 4140 Cleaning Liquid Passage Cover 4200 Cleaning Liquid Tank Body 4210 Cleaning Liquid Float Ball Base 4220 Cleaning Liquid Float Ball 4340 Second Electromagnetic Valve 4110 Full Water Detection Sensor 4300 Clean Water Tank Top Cover 4310 Groove 4320 Peristaltic Pump 4321 Liquid Inlet 4322 Liquid Outlet 4323 First Liquid Transport Pipe 4324 Second Liquid Transport Pipe 4400 Float Valve 4410 Pivot Rod 4411 First End 44111 Push Rod 4412 Second End 4420 Float Body 4430 Fixed Rotation Axis 4440 Fixed Sleeve Shell 4441 Slide 4450 Plug Body 4451 Soft Rubber Gasket 4452 cavity 4453 slide rail 4500 signal transmission component 4600 signal sensing component 5000 sewage tank 5100 sewage tank body 5200 drainage pump 5300 drain pipe 5400 drain valve 5500 sewage full water detection assembly 5510 sewage full water floating body seat 5520 sewage full water floating body part 6000 main body base 6200 cleaning groove 7000 automatic water exchange assembly 7100 control device 7200 water tank assembly 7210 second electromagnetic valve 7300 water tank top shell 7310 water inlet 7320 water overflow port 7330 drain port 7400 depression part 7410 clean water inlet 7420 air pump port 7440 sewage water inlet 7600 first depression 7700 second depression 7800 U-shaped surrounding structure 8000 main control box 8100 first electromagnetic valve 8200 low pressure switch 8300 high pressure switch 8400 box body 8410 box body water outlet 8420 box body top cover 8500 main controller 8600 pressure maintaining air bag box 8610 pressure maintaining air bag box housing 8611 opening 8620 air bag 8621 Airbag body 8622 Airbag neck 8623 Airbag end 8624 Airbag mouth 8630 Assembly member 8631 Central hole 8632 Concave surface 8633 Edge 8700 Square pipe 9000 Second external water pipe 9100 First water pipe 9200 Second water pipe 9300 Third water pipe 9400 Clean water tank inlet pipe 9410 Outlet 9420 Screwed rubber gasket 9500 Clean water tank water overflow pipe 9600 Sewage tank drain pipe 10 Sweeping and cleaning robot 110 Equipment body 111 Front part 112 Rear part 120 Sensing module 121 Positioning sensor 122 Front collision structure 123 Cliff sensor 130 Man-machine interaction module 140 Left wheel 141 Right wheel 142 Driven wheel 150 Cleaning system 151 Dry cleaning system 152 Side brush 153 Wet cleaning system 1531 Cleaning head 1532 Driving unit 1533 Driving platform 1534 Support platform 20 Water tank body 201 Cover body 2011 Mounting part 2012 Second screw hole 30 Float Support Device 301 Support Body 3011 Float Support Rack 3012 Water Inlet Pipe 3013 First Cavity 302 Sealing Member 3021 First Sealing Body 30211 Sealing Ring 30212 Connector 3022 Second Sealing Body 303 Detachable Connection Member 3031 First Threaded Hole 3032 First Bolt 3033 Connection Boss 40 Assembly Hole 50 Float

Embodiment for Carrying out the Invention

[0031] To make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments of the present disclosure, other embodiments obtained by those skilled in the art without creative labor are all included in the protection scope of the present disclosure.

[0032] The terms used in the embodiments of the present disclosure are only used for the purpose of describing specific embodiments and are not intended to limit the present disclosure. In the embodiments of the present disclosure and the appended claims, the singular forms "one", "the foregoing" and "said" are also intended to include the plural forms, and generally include at least two unless the context clearly indicates otherwise.

[0033] It should be noted that the term "and / or" used in this specification is only for explaining the relevant relationship of the relevant objects, and there are three relationships. For example, A and / or B may mean that A exists alone, A and B exist simultaneously, and B exists alone. In addition, " / " in this specification generally indicates that the relevant objects before and after are in an "or" relationship.

[0034] In addition, in the embodiments of the present disclosure, terms such as first, second, third, etc. may be used for the purpose of explanation, but it should be understood that they should not be limited to these terms. These terms are only used for distinction. For example, as long as it does not deviate from the scope of the embodiments of the present disclosure, the first may also be called the second, and similarly, the second may also be called the first.

[0035] Note that terms such as "including" and "comprising" or any other arbitrary variations are intended to cover non-exclusive inclusion. It should be noted that a product or device including a series of elements not only includes those elements, but also includes other elements that are clearly listed, or elements inherent in these products or devices. Further, unless otherwise limited, an element defined by the expression "comprising..." does not exclude the existence of other identical elements in the product or device including the said element.

[0036] Hereinafter, selectable embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0037] In the related art, the structure of the self-cleaning maintenance station is usually complex. The water tank is arranged in the complex hood cover of the self-cleaning maintenance station. Manual addition of clean water or removal of sewage is required. Clean water is manually added to the clean water tank, resulting in a decrease in cleaning efficiency. When the sewage tank is full, it is necessary to manually pour out the sewage, which not only reduces the cleaning efficiency but also increases the risk of sewage overflow. The application is not sufficiently convenient. The outer shape structure of the water tank is too messy and not neat and beautiful. Also, since the water tank connection port is provided at the bottom of the water tank, the water in the water tank is likely to overflow, often damaging the elements in the self-cleaning maintenance station.

[0038] Therefore, embodiments of the present disclosure provide a water automatic exchange assembly, which includes a water tank top shell, a sewage tank, and a clean water tank with an integrated structure. The water tank assembly can realize automatic addition of clean water, automatic discharge of sewage, or automatic addition of cleaning liquid, liberating manpower, automatically adding clean water when the clean water tank is short of water, improving the cleaning efficiency, automatically pumping out sewage when the sewage tank is full, improving the cleaning efficiency, and reducing the risk of sewage overflow at the same time. Furthermore, the appearance of the water automatic exchange assembly with an integrated structure is more concise and aesthetically pleasing.

[0039] Specifically, the water automatic exchange assembly provided by the embodiments of the present disclosure is assembled in a self-cleaning maintenance station. As an example, FIG. 1 is a schematic diagram exemplarily showing the complete overall structure in which the water automatic exchange assembly is assembled in the self-cleaning maintenance station. FIG. 2 is a schematic diagram exemplarily showing the split structure of the water automatic exchange assembly and the self-cleaning maintenance station.

[0040] To more clearly describe the structure of the water automatic exchange assembly, the following directions are defined with reference to the self-cleaning maintenance station: The self-cleaning maintenance station is defined by three mutually perpendicular axes: the transverse axis Y, the front-rear axis X, and the central vertical axis Z. The direction opposite to the arrow along the front-rear axis X, i.e., the direction in which the automatic cleaning device enters the self-cleaning maintenance station, is defined as "rear", and the direction of the arrow along the front-rear axis X, i.e., the direction in which the automatic cleaning device leaves the self-cleaning maintenance station, is defined as "front". The transverse axis Y is substantially the direction along the width of the self-cleaning maintenance station body. The vertical axis Z is the direction extending upward along the bottom surface of the self-cleaning maintenance station. Here, the direction of the water automatic exchange assembly is described by XYZ under the normally applied state. As shown in FIG. 1, the direction in which the bottom plate of the self-cleaning maintenance station protrudes from the self-cleaning maintenance station body is the front, the direction toward the rear wall of the self-cleaning maintenance station body is the rear, the water automatic exchange assembly 7000 is located on the right side of the self-cleaning maintenance station, and the dust collection chamber 2100 is located on the left side of the self-cleaning maintenance station.

[0041] As shown in Fig. 1, the self-cleaning maintenance station provided by this embodiment includes a self-cleaning maintenance station bottom plate 1000, a self-cleaning maintenance station main body 2000, a water automatic exchange assembly 7000 and a dust collection hood 2800 provided on the self-cleaning maintenance station main body 2000. Here, the self-cleaning maintenance station bottom plate 1000 is detachably or non-detachably connected to the self-cleaning maintenance station main body 2000, thereby facilitating the transportation and maintenance of the self-cleaning maintenance station bottom plate 1000 and the self-cleaning maintenance station main body 2000. A cleaning chamber opened forward is formed between the lower part of the self-cleaning maintenance station main body 2000 and the main body base 6000. The cleaning chamber is used to accommodate the automatic cleaning device when the automatic cleaning device returns to this self-cleaning maintenance station for maintenance operations. A cleaning groove 6200 is provided on the self-cleaning maintenance station main body base 6000, and after the automatic cleaning device is adapted to the cleaning chamber, it is configured to clean the cleaning member on the automatic cleaning device through the cleaning groove.

[0042] As shown in Fig. 2, the self-cleaning maintenance station main body 2000 includes a water storage chamber 2700 and a dust collection chamber 2100. The water storage chamber 2700 is provided at the top of the self-cleaning maintenance station main body 2000, opening upward and forward. The water storage chamber includes a clean water chamber 2400 and a sewage chamber 2300 for accommodating the clean water tank of the water automatic exchange assembly 7000. The dust collection chamber 2100 is provided at the top end of the self-cleaning maintenance station main body 2000, opening upward and forward beside the water storage chamber 2700. By designing the water storage chamber 2700 and the dust collection chamber 2100 upward and forward, it is easy to detach and attach the water automatic exchange assembly 7000 and the dust collection hood 2800. Both the water automatic exchange assembly 7000 and the dust collection hood 2800 are assembled onto the self-cleaning maintenance station main body 2000 from the front and upper directions. Such a structural design conforms to the user's usage habits. Furthermore, due to the upward and forward design, it is easy to perform daily maintenance on the elements in the water storage chamber 2700 and the dust collection chamber 2100.

[0043] As shown in FIG. 2, the water storage chamber 2700 and the dust collection chamber 2100 are surrounded by the rear wall, the front wall, and a plurality of side walls of the self-cleaning maintenance station body 2000. The rear wall and the front wall of the water storage chamber 2700 and the dust collection chamber 2100 are coplanar respectively, and one side wall is coplanar. Here, the height of the rear wall of the self-cleaning maintenance station body 2000 is higher than the height of the front wall of the self-cleaning maintenance station body 2000. The side wall of the self-cleaning maintenance station body 2000 is connected to the rear wall and the front wall, and the end face of the side wall of the self-cleaning maintenance station body 2000 has an arc-shaped structure. The water storage chamber 2700 and the dust collection chamber 2100 are designed to be above and in front, which facilitates the removal and installation of the clean water tank of the automatic water exchange assembly 7000 and the dust collection hood 2800. Here, in the arc-shaped structure, the stability and aesthetics of the automatic water exchange assembly 7000 and the dust collection hood 2800 attached to the water storage chamber 2700 and the dust collection chamber 2100 are ensured.

[0044] The water storage chamber 2700 is used to accommodate the automatic water exchange assembly 7000 (including the sewage tank 5000 and the clean water tank 4000). Inside the water storage chamber 2700, a tab 2600 is provided which is in close contact with the rear wall of the water storage chamber 2700 and extends upward along the bottom of the water storage chamber to a height slightly lower than the height of the rear wall of the water storage chamber. A plurality of protruding openings are provided at the upper part of the tab. The protruding openings are made of soft rubber material, but are not limited thereto. The protruding openings are used to be connected to the sewage tank 5000 or the clean water tank 4000 assembled at the corresponding position. Here, a partition plate 2710 extending vertically is provided inside the water storage chamber 2700 to divide the water storage chamber 2700 into two parts. One part is used to accommodate the sewage chamber 2300 of the sewage tank 5000, and the other part is used to accommodate the clean water chamber 2400 of the clean water tank 4000. Note that the upper part of the tab may be the top of the tab, or the side wall of the tab higher than the highest water level line position of the clean water tank and the sewage tank in the assembled state, but is not particularly limited here.

[0045] In some embodiments, the protrusion opening includes an air pump port 2610 and a sewage tank connection port 2620, and is provided corresponding to the top end of the tab 2600 at the assembly position of the sewage tank 5000. The air pump pumps the sewage tank 5000 through the air pump port 2610. Since the sewage tank 5000 has a sealed structure, a negative pressure is formed inside during the pumping process, and the sewage in the cleaning groove is pumped into the sewage tank 5000 through the sewage pipe and the sewage tank connection port 2620. The clean water tank connection port 2630 is provided corresponding to the top end of the tab 2600 at the assembly position of the clean water tank 4000. The clean water in the clean water tank 4000 flows into the scraping member in the cleaning groove through the clean water tank connection port 2630 under the action of the peristaltic pump to clean the cleaning head of the automatic cleaning device. The air pump port 2610, the sewage tank connection port 2620, and the clean water tank connection port 2630 are provided at the top end of the tab 2600 to avoid the water in the clean water tank or the sewage tank overflowing from the water tank and flowing into the clean water chamber or the sewage chamber during the replacement process of the clean water tank or the sewage tank. By hermetically connecting the sewage tank 5000 and the clean water tank 4000 to the top through the air pump port 2610, the sewage tank connection port 2620, and the clean water tank connection port 2630, the operation is more convenient than the connection at the bottom end of the clean water chamber or the sewage chamber.

[0046] In some embodiments, the automatic water exchange assembly 7000 includes a control device 7100 and a water tank assembly 7200. The control device 7100 is provided inside the water tank assembly 7200 and includes a circuit board and electronic components provided on the circuit board. The electronic components are electrically connected to solenoid valves, float ball valves, and various sensors within the automatic water exchange assembly 7000, and are configured to realize automatic addition of clean water, automatic discharge of sewage, or automatic addition of cleaning liquid in the water tank assembly 7200. Here, the water tank assembly 7200 includes a sewage tank 5000, a clean water tank 4000, and a water tank top shell 7300. The water tank top shell substantially covers the sewage tank and the clean water tank, and the rear side of the water tank top shell 7300 protrudes from the water tank assembly 7200. The water tank assembly 7200 has a substantially L-shaped structure. The sewage tank 5000 and the clean water tank 4000 extend into the water tank top shell 7300. Here, the water tank top shell, the sewage tank, and the clean water tank form an integral structure, thereby making the outer shape of the water tank more neat and beautiful.

[0047] As shown in FIG. 3, the sewage tank 5000 and the clean water tank 4000 are provided below the water tank top shell 7300 with a preset distance therebetween. Here, the sewage tank 5000 is inserted into the sewage chamber 2300, the clean water tank 4000 is inserted into the clean water chamber 2400, and the partition plate 2710 is inserted into the gap between the sewage tank 5000 and the clean water tank 4000, thereby making the automatic water exchange assembly 7000 more stable.

[0048] A recessed portion 7400 is formed inwardly on the outer walls on the same side of the sewage tank 5000 and the clean water tank 4000. A sewage outlet and a clean water outlet are provided so as to penetrate upward at the top end of the recessed portion 7400. The sewage outlet is configured to pump sewage into the sewage tank 5000, and the clean water outlet is configured to pump clean water from the clean water tank 4000. Specifically, the recessed portion 7400 is restricted to coincide with at least a part of the tab 2600. A clean water outlet, a sewage outlet, a restriction pit, etc. are provided on the top surface of the recessed portion 7400, and are connected to coincide with the air pump port 2610, the sewage tank connection port 2620, the clean water tank connection port 2630, or the soft rubber protruding point 2640 provided on the tab 2600. Due to the overall restriction of the restriction pit and the soft rubber protruding point 2640, the automatic water exchange assembly 7000 can be accurately provided at the corresponding position of the water storage chamber 2700, and the displacement of the automatic water exchange assembly 7000 can be avoided.

[0049] Specifically, as shown in FIG. 4, for the clean water tank 4000, a clean water outlet 7410 is provided on the top surface of the recessed portion 7400. When the clean water tank 4000 is assembled into the water storage chamber 2700, the water tank recessed portion 7400 is exactly received by the tab 2600 in the water storage chamber 2700, and the water tank clean water outlet 7410 is connected to the protruding opening at the top of the tab 2600.

[0050] For the sewage tank 5000, an air pump port 7420 and a sewage water inlet 7440 are further provided on the top surface of the recessed portion 7400, and the air pump port 7420 is connected to the air pump connection port 2610 at the top of the tab 2600. When the air pump connection port 2610 is connected to the air pump port 7420, sewage can be pumped into the sewage tank 5000. In some embodiments, the air pump pumps the sewage tank 5000 through the air pump connection port 2610 and the air pump port 7420. Since the sewage tank 5000 has a sealed structure, a negative pressure is formed inside during the pumping process, and the sewage in the washing groove is pumped into the sewage tank 5000 through the sewage pipe, the sewage water inlet 7440, and the sewage tank connection port 2620.

[0051] A plurality of pits 7430 may be further provided on the top surface of the recessed portion 7400. When the water automatic exchange assembly 7000 is assembled in the water storage chamber 2700, the top surface of the recessed portion 7400 is exactly received by the tab 2600 in the water storage chamber 2700, and the plurality of pits provided on the top surface of the recessed portion 7400 match with the soft rubber protruding points on the top of the tab 2600 to realize the limitation of the water automatic exchange assembly 7000. Due to the matching limitation between the soft rubber protruding point 2640 and the pit, the position of the water automatic exchange assembly 7000 in the water storage chamber 2700 can be made more accurate, and the displacement of the water automatic exchange assembly 7000 can be avoided.

[0052] A water inlet 7310 is provided on the rear side of the water tank top shell 7300, and the water inlet 7310 is connected to the clean water tank 4000 through a water pipe, and the control device 7100 realizes automatic addition of clean water in the clean water tank 4000. A water overflow port 7320 is further provided on the rear side of the water tank top shell 7300, and the water overflow port 7320 is connected to the clean water tank 4000 through a water pipe. When the clean water tank 4000 is full, the water in the clean water tank is automatically discharged through the water overflow port 7320 to avoid clean water flowing into the water automatic exchange assembly 7000 and damaging the elements. A drain port 7330 is further provided on the rear side of the water tank top shell, and the drain port is connected to the sewage tank through a water pipe. When the sewage tank is full, the water in the sewage tank is automatically discharged through the drain port to avoid sewage flowing into the water automatic exchange assembly 7000 and damaging the elements.

[0053] A sensor 7500 is provided on at least one outer wall of the sewage tank 5000 or the clean water tank 4000, and is configured to detect whether the sewage tank 5000 and the clean water tank 4000 are assembled in a predetermined position. When the sewage tank 5000 or the clean water tank 4000 is not assembled in the predetermined position, the water automatic exchange assembly 7000 issues an alarm, for example, an indicator lamp lights up.

[0054] The water tank top shell 7300 includes a detachable water tank top cover 7340. The tops of the sewage tank 5000 and the clean water tank 4000 extend into the water tank top shell. After the water tank top cover 7340 is opened, the elements within the water tank top shell 7300 can be maintained. Signal lamps, such as a water pipe leakage signal lamp, a water pipe rupture signal lamp, a normal water replenishment signal lamp, etc., are provided on the water tank top cover 7340.

[0055] The side walls of the water tank top shell 7300 extend downward along the side walls of the sewage tank 5000 and the clean water tank 4000 to form a U-shaped surrounding structure 7800. The U-shaped surrounding structure 7800 surrounds the side walls of the sewage tank 5000 and the clean water tank 4000, for example, at least surrounds a part of the front side wall and the left and right side walls of the sewage tank 5000 and the clean water tank 4000. Thereby, after the water automatic exchange assembly 7000 is assembled at the top of the self-cleaning maintenance station, only the U-shaped surrounding structure is exposed on the outer surface. As shown in FIG. 1, the overall aesthetic appearance and neatness of the self-cleaning maintenance station are improved.

[0056] As shown in FIG. 5, the side wall of the sewage tank 5000 includes at least one first depression 7600 that extends upward along the bottom of the sewage tank, and the side wall of the clean water tank 4000 includes at least one second depression 7700 that extends upward along the bottom of the clean water tank. The first depression 7600 and the second depression 7700 are configured to be restricted at the assembly positions of the sewage tank 5000 and the clean water tank 4000. The sewage tank and the clean water tank are made of a transparent material to easily observe the liquid levels in the sewage tank and the clean water tank.

[0057] In the clean water tank, there is a clean water float ball base provided at the bottom of the clean water tank main body, and a clean water float ball connected to the clean water float ball base and configured to detect the water level. When the water level is less than the first predetermined threshold, the control device controls to open the water inlet to automatically add clean water to the clean water tank. In the clean water tank, there is further provided a cleaning liquid float ball base provided at the bottom of the cleaning liquid tank main body, and a cleaning liquid float ball connected to the cleaning liquid float ball base and configured to detect the liquid level of the cleaning liquid. When the liquid level is higher than the second predetermined threshold, the cleaning liquid is automatically added to the clean water tank by controlling the peristaltic pump. In the sewage tank, there is further provided a sewage float ball provided at the top of the sewage tank and configured to detect the sewage liquid level. When the liquid level is higher than the third predetermined threshold, the sewage pump and the drain valve are sequentially opened to automatically discharge the sewage from the drain port to the sewage tank.

[0058] The water automatic exchange assembly 7000 and the dust collection hood 2800 are provided side by side in the clean water tank at the top of the self-cleaning maintenance station to form a flat array structure, so that on the one hand, it can be easily installed and removed for use, and on the other hand, the outer shape is flat and aesthetic, improving the user experience.

[0059] After the self-cleaning maintenance station is used for a long time, it will be contaminated by the sewage for cleaning the cleaning member in the protrusion opening, and it is inevitable that dirt will remain. With the above settings, the protrusion opening on the tab 2600 has an open structure with respect to the front wall, or also has an open structure with respect to the side wall. The arm and the cleaning tool can contact the protrusion opening from various angles, and the user can easily clean the dirt accumulated near the protrusion opening.

[0060] When the automatic water exchange assembly 7000 is assembled in the water storage chamber, the top surface of the automatic water exchange assembly 7000 is higher than the rear wall of the self-cleaning maintenance station main body, and the box body part of the automatic water exchange assembly 7000 is located outside the water storage chamber. With the above settings, the material usage of the self-cleaning maintenance station main body is reduced, and the technical effect of aesthetic design is also achieved. At the same time, the top of the self-cleaning maintenance station main body adopts a design with a lower front wall and a higher rear wall, and the upper positions of the front parts of the automatic water exchange assembly 7000 and the dust collection hood 2800 are also exposed outside the cavity at the same time, which is convenient for people to easily observe the water levels in the transparent sewage tank and clean water tank and the situation in the dust collection chamber, and to perform corresponding operations on the sewage tank, clean water tank, and dust collection chamber in a timely manner.

[0061] In the related art, the clean water tank and the sewage tank of the self-cleaning maintenance station are arranged on the self-cleaning maintenance station, and it is necessary to manually add clean water. Since clean water needs to be manually added when the clean water tank runs out of water, the cleaning efficiency is reduced.

[0062] Therefore, the embodiments of the present disclosure realize the automatic addition of clean water, liberate the hands, automatically add clean water when the clean water tank runs out of water, improve the cleaning efficiency, and further provide an automatic water exchange assembly that can timely close the water source, issue an alarm, and avoid water leakage when the water pipe bursts or leaks.

[0063] Specifically, the automatic water exchange assembly provided by the embodiments of the present disclosure is assembled in a self-cleaning maintenance station. As an example, as shown in FIG. 6, the automatic water exchange assembly 7000 includes a main control box 8000 and a water tank assembly 7200. One end of the main control box 8000 is connected to the outside of the water tank assembly 7200 via a second external water pipe 9000, and the other end of the main control box 8000 is connected to a water source via a first external water pipe 10000. The main control box 8000 is configured to at least realize the automatic addition of clean water to the water tank assembly. Here, as shown in FIG. 7, the main control box 8000 includes a first solenoid valve 8100, a low-pressure switch 8200, and a high-pressure switch 8300. The low-pressure switch 8200 and the high-pressure switch 8300 are configured to generate corresponding trigger signals based on the water pressure state of the second external water pipe 9000. The first solenoid valve 8100 is opened and closed in response to the trigger signal, and correspondingly controls whether the water in the water source can flow into the second external water pipe via the first external water pipe. When the main control box 8000 is provided for the first time, the main control box 8000 is reset once. In the reset state, the first solenoid valve 8100 is opened. At this time, the second solenoid valve on the side of the clean water tank is in a closed state, and the water from the water source cannot enter the main control box 8000 and the external water pipes for circulation. The water pressure in the water pipes rises, and the high-pressure switch generates a high-pressure trigger signal and transmits the high-pressure trigger signal to the main controller 8500 in the main control box 8000. The main controller 8500 transmits a closing control signal, and the first solenoid valve 8100 is closed in response to the high-pressure trigger signal, stopping the water supply from the water source and maintaining the state where the entire water circuit is filled with clean water.

[0064] As shown in FIG. 8, the main control box 8000 includes a box body 8400. The box body 8400 includes a box body water inlet (not shown) and a box body water outlet 8410. The box body water inlet is connected to a water source, and the box body water outlet 8410 is connected to the water tank assembly 7200 via the second external water pipe 9000. The top of the box body 8400 includes a box body top cover 8420, and the box body top cover 8420 is fixedly connected to the top of the box body 8400 via bolts. The shape of the box body 8400 may be a rectangular parallelepiped, a cube, a sphere, a hemisphere, etc., but is not particularly limited. The material of the box body 8400 may be metal, alloy, hard plastic, rubber, etc., but is not particularly limited.

[0065] As shown in FIG. 7, the main control box 8000 further includes a main controller 8500, the main controller 8500 is provided inside the box body 8400, the main controller 8500 is electrically connected to the first solenoid valve 8100, the low-pressure switch 8200 and the high-pressure switch 8300, and the main controller 8500 is configured to control the opening and closing of the first solenoid valve 8100 based on the trigger signal. Here, one side of the water tank assembly 7200 includes a second solenoid valve 7210. When it is detected by the float valve in the clean water tank 4000 that the water in the clean water tank is insufficient, a detection signal is sent to the control device 7100, and the control device 7100 controls the second solenoid valve 7210 to open. At this time, the water in the water pipe flows into the clean water tank 4000, the water pressure in the water pipe drops, the low-pressure switch 8200 generates a low-pressure trigger signal, and the low-pressure trigger signal is sent to the main controller 8500 in the main control box 8000. The main controller 8500 sends an open control signal, and the first solenoid valve 8100 opens in response to the low-pressure trigger signal. The water from the water source enters from the water inlet of the box body, and a passage from the water source to the clean water tank is formed, so that automatic replenishment of clean water in the water tank assembly can be realized. When it is detected by the hall sensor in the clean water tank 4000 that the clean water tank is full, a full water detection signal is sent to the control device 7100, and the control device 7100 controls the second solenoid valve to close. At this time, water cannot flow into the clean water tank, the water pressure in the water pipe rises, the high-pressure switch generates a high-pressure trigger signal, and the high-pressure trigger signal is sent to the main controller 8500 in the main control box 8000. The main controller 8500 sends a close control signal, and the first solenoid valve 8100 is closed in response to the high-pressure trigger signal, the water source stops sending water, and the automatic replenishment of clean water in the water tank assembly stops. Under the control of the main control box, automatic replenishment of clean water and automatic closing operation of clean water replenishment can be realized according to the state of the water level in the clean water tank, liberating the operator, avoiding work stoppage due to insufficient water in the dust collection pile, and improving the working efficiency of the automatic cleaning device.

[0066] As shown in FIG. 7, the main control box 8000 is provided inside the box body 8400, and includes a first water pipe 9100 with one end connected to the water inlet of the box body and connected to a water source through the water inlet of the box body, a second water pipe 9200 provided inside the box body 8400 with one end connected to the water outlet 8410 of the box body and the other end connected to the first water pipe 9100, and a third water pipe 9300 provided inside the box body 8400 and connected between the first water pipe 9100 and the second water pipe 9200. Here, the first solenoid valve 8100 is provided in the pipeline of the first water pipe 9100, the high-pressure switch 8300 is provided in the pipeline of the second water pipe 9200, and the low-pressure switch 8200 is provided in the pipeline of the third water pipe. Here, the high-pressure switch 8300 and the low-pressure switch 8200 are pressure sensors. By setting the threshold values of the pressure sensors, they function as a high-pressure switch and a low-pressure switch. For example, by setting the low-pressure threshold value of the pressure sensor, when the water circuit pressure is lower than the low-pressure threshold value, the low-pressure switch generates a low-pressure trigger signal. By setting the high-pressure threshold value of the pressure sensor, when the water circuit pressure is higher than the high-pressure threshold value, the high-pressure switch generates a high-pressure trigger signal. The low-pressure threshold value and the high-pressure threshold value are set based on experimental data and are not particularly limited. The high-pressure switch and the low-pressure switch can control the opening and closing of the first solenoid valve in response to different pressure values of the water flow in the water circuit, and finally realize the opening and closing of the water circuit.

[0067] In some embodiments, the main control box 8000 further includes a pressure-maintaining airbag box 8600. Sufficient liquid is pre-stored inside the pressure-maintaining airbag box 8600. When the liquid pressure in the second external water pipe 9000 drops, the pressure-maintaining airbag box replenishes the liquid in the pressure-maintaining airbag box into the third water pipe 9300 and the second water pipe 9200, slows down the pressure drop rate in the third water pipe 9300 and the second water pipe 9200, and increases the response time difference between the low-pressure switch and the high-pressure switch.

[0068] In some embodiments, as shown in FIG. 7, the main control box 8000 further includes a pressure-maintaining airbag box 8600 and a square pipe 8700. The pressure-maintaining airbag box 8600 has an opening 8611, and the square pipe 8700 has four communication ports, which are respectively connected to the first water pipe 9100, the second water pipe 9200, the third water pipe 9300, and the pressure-maintaining airbag box opening 8611. The pressure-maintaining airbag box 8600 is provided between the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300 via the square pipe 8700. The pressure-maintaining airbag box communicates with the first water pipe, the second water pipe, and the third water pipe liquid via the square pipe respectively. When the liquid pressures in the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300 decrease, the liquid in the pressure-maintaining airbag box is configured to supplement the first water pipe 9100, the second water pipe 9200, and the third water pipe 9300.

[0069] In some embodiments, as shown in FIG. 9, the pressure-maintaining airbag box 8600 includes a pressure-maintaining airbag box housing 8610, an airbag 8620, and an assembly member 8630. The airbag 8620 is assembled to the pressure-maintaining airbag box housing 8610 via the assembly member 8630. Here, an opening 8611 is provided at the top end of the pressure-maintaining airbag box housing 8610. The airbag 8620 is provided within the pressure-maintaining airbag box housing 8610 and elastically expands and contracts according to the amount of liquid entering and exiting the airbag through the opening. The airbag 8620 is made of a flexible elastic material and can expand or contract according to the amount of liquid entering the airbag 8620. As shown in FIG. 10, the airbag 8620 includes an airbag body 8621, an airbag neck 8622, and an airbag end 8623. The airbag body 8621 is provided within the pressure-maintaining airbag box housing 8610 and can elastically expand and contract according to the amount of liquid entering and exiting the airbag 8620. The airbag end 8622 is provided at the top end of the airbag body 8621 and is substantially flush with the pressure-maintaining airbag box end. Here, the airbag end 8623 has an airbag opening 8624 for the entry and exit of liquid. The airbag neck 8622 is provided between the airbag body 8621 and the airbag end 8623 and is adapted to engage with the assembly member 8630.

[0070] In some embodiments, as shown in FIG. 11, the assembly member 8630 has a central hole 8631, and after being snapped to the airbag neck 8622 through the central hole 8631, the airbag end 8623 is assembled to the opening of the pressure-maintaining airbag box housing 8610. The upper surface of the assembly member 8630 further has a recessed surface 8632, and the recessed surface 8632 is provided on the top surface of the assembly member around the central hole 8631, and the recessed surface 8632 is configured to match the airbag end 8623. The airbag end 8623 passes through the central hole 8631 and then matches the recessed surface 8632, whereby the airbag end 8623 is substantially flush with the upper surface of the assembly member 8630. The assembly member 8630 further includes an edge 8633, and the edge 8633 extends around the outside of the top surface of the assembly member. After the assembly member 8630 is assembled to the pressure-maintaining airbag box housing opening 8611, the edge 8633 is engaged with the periphery of the pressure-maintaining airbag box housing opening 8611 and is configured to achieve sealing inside the pressure-maintaining airbag box 8600. The pressure-maintaining airbag box further includes a cover body (not shown), and the pressure-maintaining airbag box cover body is assembled on the pressure-maintaining airbag box housing, and after strongly pressing the edge 8633, the airbag 8620 is configured to be sealed inside the airbag box housing 8610.

[0071] After being reset for the first time, after the wiring and piping of the water tank assembly and the main control box are connected, first open the control button of the main control box. At this time, the first solenoid valve of the main control box is opened for a certain period of time and then closed. For example, it is opened for 2 s, the first solenoid valve and the second solenoid valve are both closed, and the water circuit between the first solenoid valve and the second solenoid valve is filled with clean water. At this time, the water circuit is in a high-pressure state, the high-pressure switch is in a constantly triggered state, and the first solenoid valve is also closed in response to the high-pressure switch state. When the external water pipe is damaged and the liquid gradually leaks, the water pressure in the external water pipe gradually decreases, and the constantly triggered state of the high-pressure switch stops. At this time, the liquid in the pressure-maintaining airbag box is replenished into the water circuit due to the contraction of the airbag, the decrease rate of the water pressure in the water circuit slows down. When the liquid in the pressure-maintaining airbag box cannot be replenished into the water circuit, until the trigger threshold of the low-pressure switch is reached, the water pressure in the water circuit continues to decrease due to the leakage of the water pipe. The main controller records the first time difference t1 between the change of the high-pressure switch trigger state and the change of the low-pressure switch trigger state. When the first time difference t1 is within the first predetermined range, it is regarded as a water pipe leakage, and a water pipe leakage alarm signal is issued. Here, the first predetermined range may be set based on experimental data. For example, it is higher than 10 seconds. When t1 is higher than 10 seconds, it is regarded as a water pipe leakage, and a water pipe leakage alarm signal is issued. For example, the water pipe leakage signal lamp is lit and / or a beep sound alarm is issued.

[0072] In some embodiments, when an external water pipe ruptures and liquid leaks, if the rupture is not large but not in a micro-leak state, the water pressure in the external water pipe also drops rapidly, and the always-triggered state of the high-pressure switch stops. At this time, the liquid in the pressure-maintaining airbag box is replenished into the water circuit due to the contraction of the airbag, the water in the external water pipe leaks rapidly, and the pressure-maintaining airbag box only slows down the rate of decrease in the water pressure in the water circuit for a short time. When the liquid in the pressure-maintaining airbag box cannot be replenished into the water circuit, the water pressure in the water circuit drops rapidly along with the rupture of the water pipe, reaches the trigger threshold of the low-pressure switch in a short time, and the main controller records the second time difference t2 when the high-pressure switch and the low-pressure switch are triggered. If the second time difference t2 is within the second predetermined range, it is regarded as a water pipe rupture, and a water pipe rupture warning signal is issued. For example, the second predetermined range is set based on experimental data and may be set to, for example, 3 to 10 seconds. When t2 is in the range of 3 to 10 seconds, it is regarded as a water pipe rupture, and a water pipe rupture warning signal is issued, for example, turning on a water pipe rupture signal lamp and / or emitting a beep sound warning.

[0073] In some embodiments, when the second solenoid valve of the clean water tank is opened for normal water replenishment, the water pressure in the external water pipe drops rapidly, and the always-triggered state of the high-pressure switch stops. At this time, the liquid in the pressure-maintaining airbag box is replenished into the water circuit due to the contraction of the airbag. Since the water in the external water pipe flows fast, the pressure-maintaining airbag box only slows down the rate of decrease in the water pressure in the water circuit instantaneously. When the liquid in the pressure-maintaining airbag box cannot be replenished into the water circuit, the water pressure in the water circuit reaches the trigger threshold of the low-pressure switch within a very short time, and the main controller records the third time difference t3 when the high-pressure switch and the low-pressure switch are triggered. If the third time difference t3 is within the third predetermined range, it is regarded as normal water replenishment, no warning signal is issued, and a normal water replenishment signal is issued. Here, the third predetermined range may be set based on experimental data. For example, it is 0 to 3 seconds. When t3 is in the range of 0 to 3 seconds, it is regarded as normal water replenishment, and a normal water replenishment signal is issued, for example, turning on a normal water replenishment signal lamp and turning off the normal water replenishment signal lamp after the water replenishment is completed.

[0074] In some embodiments, when an external water pipe bursts and liquid leaks rapidly, at this time, due to the water pipe burst, the water flow leaks severely, and when the second solenoid valve is opened during normal water replenishment, it is close to the trigger interval of the high and low pressure trigger switch. For example, when it is within a third predetermined range, the main controller cannot determine whether it is normal water replenishment or a water pipe burst. At this time, it can be controlled according to the following control logic. The main control box further closes the second solenoid valve within a first predetermined time period, closes the first solenoid valve within a second predetermined time period, where the second predetermined time period at least partially overlaps with the first predetermined time period, and within the time period when the second predetermined time period and the first predetermined time period overlap, if the high pressure switch is continuously triggered, it is configured to determine that there is no burst in the water pipe. The at least partial overlap may mean that the second predetermined time period is a part of the first predetermined time period.

[0075] As shown in FIG. 12, the detection status of the presence or absence of a water pipe rupture can be explained by a timing diagram. When the water level in the clean water tank reaches the detection level of the water presence / absence hole sensor, the second electromagnetic valve of the clean water tank is opened. At this time, it is recorded as the 0th second, the water in the pipe is discharged, the pressure in the pipe also decreases, the low-pressure switch is triggered, and the first electromagnetic valve is opened. For example, it is recorded as the 1st second at this time, and the water in the nozzle is replenished into the pipe. Then, the second electromagnetic valve is closed. For example, it is recorded as the 1.5th second at this time. After a predetermined time, the first electromagnetic valve is closed. For example, it is recorded as the 3rd second at this time. That is, after the second electromagnetic valve is closed, water is continuously injected for 1.5 seconds, and then the first electromagnetic valve is closed. During this time period, a high pressure is maintained in the pipe. That is, before replenishing water, it is detected every certain time, for example, every 2 s, whether a high-pressure state can be maintained in the pipe. After the first electromagnetic valve is closed for 1 second, it is opened. For example, it is recorded as the 4th second at this time. If the first electromagnetic valve and the second electromagnetic valve are closed within 1 second and the pipe is not damaged, the pressure in the pipe is high. If the pipe ruptures, the pressure in the pipe is not high. Therefore, if a high-pressure state can be achieved during this time period, it can be determined that there is no rupture of the water pipe. Then, for example, the second electromagnetic valve is opened at the 5th second to start normal water replenishment, and the second electromagnetic valve is closed after the clean water tank is full. Thereby, in the case of a water pipe rupture, the problem that the water leakage phenomenon is aggravated by continuous water replenishment can be avoided.

[0076] In the embodiment of the present disclosure, by adding a main control box, automatic addition of clean water to the clean water tank can be realized, manual labor can be liberated, and the cleaning efficiency can be improved. Furthermore, by adding a pressure-maintaining airbag box, when the water pipe ruptures or leaks, it can timely determine whether the water pipe leaks or ruptures, timely stop the water source, issue an alarm, and avoid the risk of water flow leakage.

[0077] In related technologies, in order to enhance the cleaning effect, it is necessary to add a cleaning liquid into the clean water tank, for example, manually add the cleaning liquid. However, when clean water is automatically added to the clean water tank, it is necessary to prompt the user to manually add the cleaning liquid, which increases the cost, easily causes the omission of adding the cleaning liquid, brings inconvenience to the application of the automatic cleaning device, and reduces the cleaning efficiency.

[0078] Therefore, the embodiments of the present disclosure further provide a water automatic exchange assembly that can realize automatic addition of clean water and automatic addition of the cleaning liquid, improve the usability of the user, automatically add clean water when the clean water tank is short of water, automatically add a predetermined amount of the cleaning liquid, and can improve the timeliness, convenience and accuracy of adding the cleaning liquid.

[0079] Specifically, the water automatic exchange assembly provided by the embodiments of the present disclosure is assembled in a self-cleaning maintenance station. As an example, as shown in FIG. 3, the water automatic exchange assembly 7000 includes a control device 7100 and a water tank assembly 7200. The control device 7100 is provided inside the water tank assembly 7200. The control device 7100 is configured to realize automatic addition of clean water and / or automatic addition of cleaning liquid to the water tank assembly 7200. Specifically, as shown in FIG. 13, the water tank assembly 7200 includes a water tank top shell 7300 and a clean water tank 4000. The water tank top shell 7300 covers the clean water tank 4000. A water inlet 7310, a water overflow port 7320, and a drain port 7330 are provided on the rear side of the water tank top shell 7300. The outside of the water inlet 7310 is connected to the water source supply side, and the inside of the water inlet 7310 is connected to the clean water tank 4000 via a clean water tank inlet pipe 9400. A second solenoid valve 4340 is provided on the side of the clean water tank inlet pipe 9400 close to the clean water tank 400. The opening and closing of the second solenoid valve 4340 realizes the automatic addition function of clean water to the clean water tank 4000. The outside of the water overflow port 7320 communicates with the outside of the water automatic exchange assembly 7000 and is used to discharge the clean water overflowing from the clean water tank. The inside of the water overflow port 7320 is connected to the top side of the clean water tank 4000 via a clean water tank water overflow pipe 9500 and is used to guide the overflowing water. The outside of the drain port 7330 communicates with the outside of the water automatic exchange assembly 7000 and is used to discharge the sewage in the sewage tank 5000. The inside of the drain port 7330 is connected to the drain pump 5200 of the sewage tank 5000 via a sewage tank drain pipe 9600. The clean water tank 4000 includes a clean water tank body 4100 and a cleaning liquid tank body 4200 stacked vertically. As shown in FIG. 5, here, the inside of the clean water tank body 4100 includes a full water detection sensor 4110. When the full water detection sensor 4110 is triggered, a predetermined amount of cleaning liquid is automatically added into the clean water tank body 4100 under the control of the control device 7100.In some embodiments, the clean water tank 4000 includes a clean water tank top cover 4300 that covers the clean water tank body 4100, and the clean water tank top cover 4300 extends into the water tank top shell 7300.

[0080] In some embodiments, as shown in FIG. 13, the clean water tank top cover 4300 includes a groove 4310, and a peristaltic pump 4320 is provided in the groove 4310. The peristaltic pump 4320 is configured to pump the cleaning liquid in the cleaning liquid tank body 4200 into the clean water tank body 4100 under the control of the control device 7100. By providing the peristaltic pump at the top end of the clean water tank top cover 4300, the maintenance and replacement of the peristaltic pump are facilitated, the electrical connection with the control device 7100 is also facilitated, the communication wiring with the control device 7100 is shortened, and the control accuracy and timeliness are improved.

[0081] In some embodiments, as shown in FIG. 14, the peristaltic pump 4320 has a liquid inlet 4321 and a liquid outlet 4322. The liquid inlet 4321 extends through a first liquid transport pipe 4323 to a position near the bottom of the cleaning liquid tank body 4200, and the liquid outlet 4321 extends into the clean water tank body 4100 through a second liquid transport pipe 4324. When the water level in the clean water tank body 4100 reaches a predetermined position, the control device 7100 pumps the cleaning liquid in the cleaning liquid tank body 4200 into the clean water tank body 4100 through the first liquid transport pipe 4323 by means of the peristaltic pump 4320, realizing the automatic addition of the cleaning liquid.

[0082] In some embodiments, as shown in FIG. 14, the cleaning liquid tank body 4200 includes a cleaning liquid passage 4130. The cleaning liquid passage 4130 extends upward from the inside of the cleaning liquid tank body 4200 along the outside of the clean water tank body 4100 to the clean water tank top cover. As shown by the arrow in FIG. 14, it is used to add cleaning liquid into the cleaning liquid tank body. The top end of the cleaning liquid passage 4130 includes a cleaning liquid passage cover 4140. When it is necessary to add cleaning liquid, the cleaning liquid passage cover 4140 is opened, and the cleaning liquid is added into the cleaning liquid tank body 4200.

[0083] In some embodiments, the inside of the cleaning liquid tank body 4200 includes a cleaning liquid float ball base 4210 and a cleaning liquid float ball 4220. The cleaning liquid float ball base 4210 is provided at the bottom of the cleaning liquid tank body 4200. The cleaning liquid float ball 4220 is rotatably connected to the cleaning liquid float ball base to detect the liquid level of the cleaning liquid. The cleaning liquid float ball 4220 drops under the action of gravity as the liquid level of the cleaning liquid decreases. When the cleaning liquid float ball 4220 drops to a second predetermined threshold, the controller identifies whether the cleaning liquid in the cleaning liquid tank body 4200 has been used up. At this time, if the clean water tank body 4100 is full and it is necessary to add cleaning liquid, the control device does not control the peristaltic pump to operate and stops adding the cleaning liquid into the clean water tank body.

[0084] In some embodiments, the water tank assembly includes a cleaning liquid state indicator lamp, and when the liquid level of the cleaning liquid is less than the second predetermined threshold, it is controlled to light up the cleaning liquid state indicator lamp.

[0085] In some embodiments, the side wall of the water tank top shell extends downward along the side wall of the clean water tank, and the U-shaped structure wraps the side wall of the clean water tank body.

[0086] In some embodiments, the inside of the clean water tank body 4100 includes a clean water float ball base 4110 and a clean water float ball 4120. The clean water float ball base 4110 is provided at the bottom of the clean water tank body 4100. The clean water float ball 4120 is rotatably connected to the clean water float ball base 4110 and is configured to detect the water level. As the level of the clean water surface decreases, the clean water float ball 4120 drops under the action of gravity. When the clean water float ball 4120 drops to a first predetermined threshold, the controller identifies that the clean water in the clean water tank body 4100 has been used up. When the water level is less than the first predetermined threshold, the second solenoid valve 4340 is opened by the control device, and clean water is automatically added to the clean water tank. The process of automatically adding clean water is as described in the above embodiments and will not be repeated here.

[0087] In the embodiments of the present disclosure, a full water detection sensor in the clean water tank body detects whether the clean water tank is full of water. When it is detected that the clean water tank is full of water, a predetermined amount of cleaning liquid is automatically added into the clean water tank body under the control of the control device, so as to realize the addition of a predetermined amount of cleaning liquid according to the amount of water in the clean water tank, and the automatic and accurate addition of the cleaning liquid can be realized.

[0088] In the related art, an automatic cleaning device is automatically dust-collected and the mop cloth is washed by a self-cleaning maintenance station. Therefore, clean water needs to be automatically added to the clean water tank in the self-cleaning maintenance station, and the valve for adding clean water is automatically closed after the clean water is full to avoid the overflow of clean water. However, due to various factors, when the clean water in the water tank assembly is added to the full, the valve for adding clean water cannot be automatically closed. As a result, the clean water overflows. Although the water automatic exchange assembly can automatically add clean water, it cannot automatically close the valve, which also causes inconvenience in the application of the water automatic exchange assembly.

[0089] Therefore, embodiments of the present disclosure provide a water automatic exchange assembly that can achieve dual control by means of a floating valve structure and an associated sensor, maximize the risk of overflow when the clean water tank is full, and improve the safety of water automatic exchange assembly applications.

[0090] Specifically, embodiments of the present disclosure provide a water automatic exchange assembly, which is assembled in a self-cleaning maintenance station. As an example, as shown in FIG. 3, the water automatic exchange assembly 7000 includes a control device 7100 and a water tank assembly 7200. The control device 7100 is provided inside the water tank assembly 7200. The control device 7100 includes a second solenoid valve 4340 for automatically adding clean water and / or automatically closing the addition of clean water to the water tank assembly 7200. Specifically, as shown in FIG. 13, the water tank assembly 7200 includes a clean water tank body 4100, a water inlet pipe 9400 used to add clean water into the clean water tank body 4100, and a floating valve 4400 provided on the clean water tank body 4100 and moving up and down with the change of the water surface height in the clean water tank body 4100. As shown in FIG. 15, in response to the floating valve 4400 being in the first position 01, the control device controls the water inlet pipe 9400 to stop adding clean water into the clean water tank body 4100. In response to the floating valve 4400 being in the second position 02, the floating valve 4400 closes the outlet 9410 for adding water from the water inlet pipe 9400 to the clean water tank body 4100.

[0091] Here, the first position 01 may be a point position or an interval position. At this first position 01, when the water surface in the clean water tank body 4100 rises, after the floating valve 4400 reaches the first position 01, the control device receives sensing information, indicating that the water surface in the clean water tank body 4100 has reached a predetermined full water position at this time. Specifically, it can be realized as follows.

[0092] In some embodiments, the automatic water exchange assembly includes a signal transmitting component 4500 configured to transmit a sensing signal and a signal sensing component 4600 configured to receive the sensing signal. Either one of the signal transmitting component 4500 and the signal sensing component 4600 is provided in the floating body part 4420, and the other one of the signal transmitting component 4500 and the signal sensing component 4600 is provided on the inner wall of the clean water tank body 4100. That is, the signal transmitting component 4500 and the signal sensing component 4600 are provided at exchangeable positions without preventing the generation of full water sensing information. When the floating body part 4420 moves to position the floating valve 4400 at the first position, the signal sensing component 4600 is triggered, and the control device 7100 closes the second solenoid valve 4340. Further, the water inlet pipe 9400 is controlled to stop adding clean water into the clean water tank body 4100. When the control device 7100 successfully closes the second solenoid valve 4340 and the water inlet pipe 9400 stops adding clean water into the clean water tank body 4100, the floating valve 4400 no longer rises, that is, the function of blocking the water inlet pipe is completed at once.

[0093] In some embodiments, the signal transmitting component 4500 includes a magnet, and the signal sensing component 4600 includes a Hall element. Alternatively, the signal transmitting component 4500 is an NFC reader module, and the signal sensing component 4600 is an NFC tag. The signal transmitting component 4500 is an RFID reader, and the signal sensing component 4600 is an RFID electronic tag. Although not particularly limited, any sensor capable of position sensing can be applied as an embodiment.

[0094] In some embodiments, as shown in FIG. 16, the floating valve 4400 includes a pivot rod 4410 having a first end 4411 pivotally connected to a fixed pivot shaft 4430 and pivotally connected to a fixed sleeve shell 4440 via the pivot shaft 4430. The pivot rod 4410 has a second end 4412 provided opposite to the first end 4411. The floating valve 4400 includes a floating body portion 4420 connected to the second end 4412. As the water level in the clean water tank body rises, the floating valve 4400 is configured to rotate relative to the first end 4411 of the pivot rod 4410 until the floating valve 4400 reaches the first position. Specifically, the floating body portion 4420 has a hollow structure and includes signal transmitting components 4500 or signal sensing components 4600 inside. The floating body portion 4420 is formed of a lightweight material such as plastic, rubber, or lightweight metal material, which easily provides an upward buoyancy force to the floating valve 4400, thereby driving the pivot rod 4410 to rotate upward. The pivot rod 4410 may have a hollow or skeleton structure and is formed of a lightweight material such as plastic, rubber, or lightweight metal material to provide an upward buoyancy force to the floating valve 4400.

[0095] In some embodiments, in response to the floating valve 4400 being in the first position 01, the water level in the clean water tank body continues to rise, and the floating body 4420 drives the pivot rod 4410 to rotate with respect to the fixed rotation axis 4430 until the floating valve 4400 is in the second position 02. When the floating valve 4400 is in the first position 01, under normal conditions, in response to the signal transmitting component 4500 and the signal sensing component 4600, the control device 7100 determines that the clean water tank is full. At this time, the second solenoid valve 4340 is closed, and the water inlet pipe 9400 stops adding clean water into the clean water tank body 4100. Due to a failure of the signal transmitting component 4500 and the signal sensing component 4600, etc., the control device 7100 fails to close the second solenoid valve 4340 successfully, and the water inlet pipe 9400 does not stop adding clean water into the clean water tank body 4100. At this time, the floating valve 4400 continues to rise with the water level in the clean water tank body, and the floating body 4420 drives the pivot rod 4410 to rotate with respect to the fixed rotation axis 4430 until the floating valve 4400 is in the second position 02. The first end 4411 of the floating valve 4400 blocks the outlet 9410 of the water inlet pipe 9400 that injects water into the clean water tank body 4100, forcibly stops the injection operation of the water delivery pipe, and avoids the risk of water overflow.

[0096] Specifically, as shown in FIG. 17, in some embodiments, the floating valve 4400 further includes a plug body 4450, which is movably connected to the first end portion 4411 of the pivot rod 4410, and is configured to move toward or away from the outlet 9410 of the water inlet pipe 9400 under the pressing of the push rod 44111 at the first end portion 4411 of the pivot rod 4410, and to close or open the outlet 9410 of the water inlet pipe as shown in the third position 03 and the fourth position 04 in FIG. 17.

[0097] In some embodiments, as shown in FIG. 18, the plug body 4450 includes a cavity 4452, the cavity has a downward opening, the first end 4411 of the pivot rod 4410 includes a push rod 44111, the push rod 44111 is freely movable within the cavity 4452, and the push rod 44111 is configured to press against opposite side walls of the cavity 4452 as the pivot rod 4410 rotates, so as to move the plug body toward or away from the outlet of the water inlet pipe.

[0098] In some embodiments, the water tank assembly further includes a fixed sleeve shell 4440 for accommodating the outlet 9410 of the water inlet pipe 9400, the plug body 4450, and the first end 4411 of the pivot rod 4410. The fixed sleeve shell 4440 and the water inlet pipe 9400 are integrally formed to avoid water leakage. At the connection between the fixed sleeve shell 4440 and the water inlet pipe 9400, a screw-type rubber gasket 9420 is provided to achieve a sealing effect when assembled on the clean water tank body. The first end 4411 of the pivot rod 4410 is connected between opposite side walls of the fixed sleeve shell 4440 via the fixed rotating shaft 4430, and the pivot rod 4410 can rotate relative to the fixed sleeve shell 4440 around the fixed rotating shaft 4430, and at the same time is configured to push the plug body 4450 to move horizontally.

[0099] In some embodiments, as shown in FIG. 19, slides 4441 are provided on both inner side walls of the fixed sleeve shell 4440, slide rails 4453 are provided on both sides of the outer side wall of the plug body 4450, and the slide rails 4453 cooperate with the slides 4441 to achieve a sliding connection, whereby the plug body 4450 is movable along the horizontal direction and can accurately block the water inlet pipe outlet 9410.

[0100] In some embodiments, as shown in FIG. 18, the plug body further includes a soft rubber gasket 4451, which is provided on an end face that abuts against the outlet 9410 of the water inlet pipe. In response to the plug body 4450 moving towards or away from the outlet 9410 of the water inlet pipe, the soft rubber gasket 4451 is configured to block or open the outlet 9410 of the water inlet pipe. In some embodiments, as shown in FIG. 19, the outlet of the water inlet pipe has a conical structure in order to cooperate with the soft rubber gasket 4451 to seal the outlet 9410 of the water inlet pipe.

[0101] In some embodiments, as shown in FIG. 13, a water overflow hole is provided at the top of the clean water tank body and communicates with a water overflow port 7320 through a water overflow pipe 9500. When the clean water tank 4000 is full, if the water inlet cannot be completely blocked by detecting the first position and closing the floating valve at the second position as described above, the water in the clean water tank can be automatically discharged through the water overflow hole, the water overflow pipe 9500, and the water overflow port 7320, avoiding the inflow of clean water into the automatic water exchange assembly 7000 and damaging the components.

[0102] In the embodiments of the present disclosure, a floating valve in the clean water tank body is used to detect whether the clean water tank is full. The floating valve is provided in the clean water tank body and moves as the water level in the clean water tank body rises. When the floating valve is in the first position, the control device controls the water inlet pipe to stop injecting clean water into the clean water tank body. When the floating valve is in the second position, the floating valve blocks the outlet of the water inlet pipe that injects water into the clean water tank body, and furthermore, excess water can be discharged through the water overflow hole. Through multiple control methods, it is possible to prevent the self-cleaning maintenance station from overflowing after the clean water tank is full.

[0103] In an embodiment of the present disclosure, as shown in FIG. 20, the automatic water exchange assembly includes a control device 7100 and a water tank assembly 7200. The control device 7100 is provided inside the water tank assembly 7200 and is configured to realize automatic discharge of the sewage in the water tank assembly 7200. The water tank assembly 7200 includes a sewage tank main body 5100 and a drainage pump 5200 located below the sewage tank main body 5100 and configured to provide sewage discharge power. In response to the sewage in the sewage tank main body 5100 reaching a predetermined height, the drainage pump 5200 operates to discharge the sewage in the sewage tank main body 5100.

[0104] In some embodiments, the water tank assembly further includes a drain pipe 5300 connected to the outlet water of the drainage pump 5200 and a drain valve 5400 provided on the drain pipe 5300 and configured to open and close the drain pipe passage.

[0105] In some embodiments, in response to the sewage in the sewage tank main body 5100 reaching a predetermined height, the drain valve 5400 and the drainage pump 5200 are sequentially operated.

[0106] In some embodiments, the water tank assembly further includes a sewage full water detection assembly 5500 at least partially provided in the sewage tank main body 5100 and configured to detect the water level height of the sewage in the sewage tank main body.

[0107] In some embodiments, the sewage full water detection assembly 5500 includes a sewage full water floating body seat 5510 provided at the top of the sewage tank main body 5100 and a sewage full water floating body part 5520 connected to the sewage full water floating body seat 5510 and configured to move relative to the sewage full water floating body seat with the change of the water level height of the sewage in the sewage tank main body 5100.

[0108] In some embodiments, the sewage full - water floating body part 5520 is pivotally connected to the sewage full - water floating body seat 5510, and the sewage full - water floating body part 5520 is configured to rotate relative to the sewage full - water floating body seat 5510 along with the change in the water level height of the sewage in the sewage tank body 5100.

[0109] In some embodiments, the sewage full - water detection assembly 5500 further includes a signal - transmitting component configured to transmit a sensing signal and a signal - sensing component configured to receive the sensing signal. One of the signal - transmitting component and the signal - sensing component is provided inside the sewage full - water floating body part 5520, and the other one of the signal - transmitting component and the signal - sensing component is provided on the side wall of the sewage tank body 5100. In response to the sewage in the sewage tank body 5100 reaching a predetermined height, when the sewage full - water floating body part 5520 is in a predetermined position, the signal - sensing component is triggered, and the drainage pump 5200 operates to discharge the sewage in the sewage tank body 5100.

[0110] In some embodiments, the signal - transmitting component includes a magnet, and the signal - sensing component includes a Hall element.

[0111] In some embodiments, a Hall sensor is provided in the water storage chamber 2700 included in the self - cleaning maintenance station body 2000, forms a sensing signal with the Hall sensor in the sewage full - water floating body part 5520. Under the initial state of the sewage full - water floating body part 5520, the magnet in the sewage full - water floating body part 5520 is triggered together with the Hall sensor provided in the water storage chamber 2700 and the Hall sensor on the side wall of the sewage tank body 5100, which indicates that the sewage tank is assembled in a predetermined position and the sewage tank is not full of water. When more sewage is collected, the sewage full - water floating body part 5520 floats up and moves away from the Hall sensor provided in the water storage chamber 2700, which indicates that the sewage tank is full of water, the signal lamp lights up, and the pumping of sewage starts.

[0112] In some embodiments, the bottom of the sewage tank body 5100 is in the shape of a funnel, and a drain port communicating with the water inlet of the drain pump through a pipeline is provided at an end of the bottom of the sewage tank body 5100 away from the top of the sewage tank body.

[0113] To further improve the user experience, a float assembly is usually added to the clean water tank of the existing cleaning device to automatically stop the injection of the cleaning liquid when the cleaning liquid in the clean water tank is full.

[0114] Specifically, the float assembly includes a float support device and a float. The float is movably connected to the float support device. The float support device is attached to the assembly hole of the clean water tank. A water inflow passage is provided in the float support device, and the cleaning liquid can flow into the clean water tank through the water inflow passage. Thus, when the clean water tank is filled with the cleaning liquid, the float floats upward due to the buoyancy of the cleaning liquid, and the float closes the water inflow passage of the float support device to achieve the purpose of stopping the injection of the cleaning liquid. However, due to the poor sealing between the existing float support device and the assembly hole of the clean water tank, there is a problem that the cleaning liquid leaks from the gap between the float support device and the assembly hole, damaging the electronic components inside the cleaning device and affecting the service life of the cleaning device.

[0115] As shown in FIGS. 24, 25, 27, and 28, the embodiment of the present disclosure further provides a float support device 30, including a support body 301 provided with a sealing member 302 on the outer periphery. The sealing member 302 includes a first sealing body 3021 and a second sealing body 3022 connected to the first sealing body 3021. The first sealing body 3021 can extend into the assembly hole 40 of the water tank body 20 to close the gap between the outer wall of the support body 301 and the inner wall of the assembly hole 40, and the second sealing body 3022 can be abutted against the inner edge of the assembly hole 40 to close the inner edge of the assembly hole 40.

[0116] Here, the float support device 30 is applied to the clean water tank of the cleaning device. The cleaning device may be a sweeping robot, a mopping robot, a floor polishing robot, or a weeding robot. The cleaning device may be for household indoor cleaning, cleaning of large areas, etc. For the sake of convenience of description, in this embodiment, the sweeping robot will be taken as an example to explain the technical solution of the present disclosure.

[0117] Furthermore, as shown in FIGS. 21 and 22, the sweeping robot 10 includes a device body 110, a sensing module 120, a controller, a driving module, a cleaning system 150, an energy system, and a man-machine interaction module 130. Here, as shown in FIG. 21, the device body 110 includes a front part 111 and a rear part 112, and may have a substantially circular shape (both the front and rear are circular), or other shapes, including a substantially D-shaped shape with a square front and a circular rear, a rectangular or square shape with a square front and a square rear, but is not limited thereto.

[0118] As shown in FIG. 21, the sensing module 120 includes a positioning device 121 on the device body 110, a collision sensor provided on a front collision structure 122 of the front part 111 of the device body 110, a proximity sensor (wall sensor) on the side of the device, a cliff sensor 123 provided below the device body 110, and sensing devices such as a magnetometer, an accelerometer, a gyroscope, and an odometer provided inside the device body 110 and used to provide various position information and motion state information of the device to the controller. The positioning device 121 includes, but is not limited to, a camera and a laser distance measuring device (LDS, Laser Distance Sensor). In some preferred embodiments, the positioning device 121 (such as a camera, a laser sensor, etc.) is located at the front side of the body 110, that is, the foremost end of the front part 111, and can more accurately sense the environment in front of the cleaning robot and achieve accurate positioning.

[0119] As shown in FIG. 21, the front portion 111 of the device main body 110 can carry a front collision structure 122. When the drive wheel module 141 makes the cleaning robot 10 travel across the floor surface during the cleaning process, the front collision structure 122 can detect one or more events in the traveling path of the cleaning robot 10 through a sensor system provided thereon, such as a collision sensor or a proximity sensor (infrared sensor). The cleaning robot 10 can control the drive module based on the events detected by the front collision structure 122, such as obstacles or walls, to respond to the events, for example, control the cleaning robot 10 to execute obstacle avoidance operations such as moving away from the obstacles.

[0120] The controller is provided on the main circuit board inside the device main body 110 and includes a computing processor such as a central processing unit and an application processor that communicates with a non-temporary memory, such as a hard disk, a flash memory, and a random access memory. The application processor utilizes a positioning algorithm, such as simultaneous localization and mapping (SLAM), based on the obstacle information fed back from the laser distance measuring device to draw an instant map of the location environment of the cleaning robot 10. Then, combined with the distance information and speed information fed back from the sensors provided on the front collision structure 122, such as the cliff sensor 123, the magnetometer, the accelerometer, the gyroscope, and the travel distance meter, etc., the current operating state, the current position, and the current posture of the cleaning robot 10 are comprehensively determined, such as crossing a threshold, climbing onto a carpet, being on a cliff, being caught above or below, the dust box being full, being lifted, etc., and specific next operation strategies are given according to different situations, so that the cleaning robot 10 has better cleaning performance and user experience.

[0121] As shown in FIG. 22, the drive module steers the device body 110 to travel across the floor surface based on a drive command having distance and angle information. The drive module includes a main drive wheel module, and the main drive wheel module can control the left wheel 140 and the right wheel 141. In order to more accurately control the movement of the device, the main drive wheel module preferably includes a left drive wheel module and a right drive wheel module respectively. The left and right drive wheel modules are provided along the horizontal axis defined by the device body 110. In order for the cleaning robot 10 to move more stably on the floor surface or have higher moving ability, the cleaning robot 10 may include one or more driven wheels 142. The driven wheels 142 include, but are not limited to, universal wheels. The main drive wheel module includes a drive motor and a control circuit for controlling the drive motor. The main drive wheel module may be connected to a circuit for measuring drive current and an odometer. And the left wheel 140 and the right wheel 141 may include an offset drop suspension system, which is movably fixed, for example, rotatably attached to the device body 110 and receives a spring offset offset downward from the device body 110. The spring offset enables the drive wheels to maintain contact and traction with the floor surface with a certain floor adhesion force, and at the same time, the cleaning element of the cleaning robot 10 also contacts the floor surface with a certain pressure.

[0122] The energy system includes rechargeable batteries such as nickel-metal hydride batteries and lithium batteries. A charge control circuit, a battery pack charging temperature detection circuit, and a battery voltage shortage monitoring circuit are connected to the rechargeable battery, and the charge control circuit, the battery pack charging temperature detection circuit, and the battery voltage shortage monitoring circuit are connected to a one-chip microcomputer control circuit. The device may be connected to a charging pile for charging via a charging electrode 160 provided on the side or below the body.

[0123] The human-machine interaction module 130 includes keys on the host panel, which are used by the user to select functions, and includes a display and / or an indicator lamp and / or a horn. The display, indicator lamp, and horn are used to show the current state of the device or function options to the user, and further includes a mobile phone client program. In the case of the path navigation automatic cleaning device 10, the mobile phone client can show the user a map of the device's location environment and the location of the device, and can provide richer and user-friendly function options to the user. Specifically, the cleaning robot has various modes such as a working mode and a self-cleaning mode. Here, the working mode is a mode in which the cleaning robot performs automatic cleaning work, and the self-cleaning mode is a mode in which the cleaning robot removes dirt on the roller brush and the side brush 152 at the base, automatically collects the dirt, and / or automatically washes and dries the mop cloth.

[0124] The cleaning system 150 may be a dry cleaning system 151 and / or a wet cleaning system 153.

[0125] As shown in FIG. 22, the dry cleaning system 151 provided by the embodiments of the present disclosure may include a roller brush, a dust box, a fan, and an air outlet. The roller brush having a certain interference with the floor surface sweeps up the dust on the floor surface and rolls it up in front of the dust suction port between the roller brush and the dust box, and then is sucked into the dust box through the gas having a suction force generated by the fan and passing through the dust box. The dry cleaning system 151 may further include a side brush 152 having a rotating shaft. The rotating shaft forms a certain angle with the floor surface and moves the garbage to the roller brush area of the cleaning system 150.

[0126] As shown in FIGS. 22 and 23, the wet cleaning system 153 provided by the embodiments of the present disclosure may include a cleaning head 1531, a drive unit 1532, a water supply mechanism, a clean water tank, and the like. Here, the cleaning head 1531 may be provided below the clean water tank, and the cleaning liquid inside the clean water tank is transported to the cleaning head 1531 through the water supply mechanism, and the cleaning head 1531 performs wet cleaning on the plane to be cleaned. In other embodiments of the present disclosure, the cleaning liquid inside the clean water tank may be directly sprayed onto the plane to be cleaned, and the cleaning head 1531 may realize the cleaning of the plane by uniformly applying the cleaning liquid.

[0127] Here, the cleaning head 1531 is used to clean the surface to be cleaned, and the drive unit 1532 is used to drive the cleaning head 1531 to basically reciprocate along the target surface, and the target surface is a part of the surface to be cleaned. The cleaning head 1531 reciprocates along the surface to be cleaned, a mop cloth is provided on the surface of the contact surface between the cleaning head 1531 and the surface to be cleaned, and the drive unit 1532 reciprocates the mop cloth of the cleaning head 1531 to generate high-frequency friction with the surface to be cleaned, removing the dirt on the surface to be cleaned, or the mop cloth may be provided in a floating manner and does not need to be driven by the drive unit 1532 to reciprocate, and the contact with the cleaning surface is always maintained during the cleaning process.

[0128] As shown in FIG. 23, the drive unit 1532 may further include a drive platform 1533 and a support platform 1534. The drive platform 1533 is connected to the bottom surface of the device body 110 and is used to provide a driving force. The support platform 1534 is detachably connected to the drive platform 1533 and is used to support the cleaning head 1531, and the lifting is realized by the drive of the drive platform 1533.

[0129] Here, the wet cleaning system 153 may be connected to the device main body 110 via an active lifting module. When the wet cleaning system 153 does not temporarily participate in the operation, for example, when the cleaning robot 10 stops at the base station to clean the cleaning head 1531 of the wet cleaning system 153, inject water into the clean water tank, or encounters a surface to be cleaned that cannot be cleaned by the wet cleaning system 153, the active lifting module raises the wet cleaning system 153.

[0130] Note that the sweeping and cleaning robot may include other modules or assemblies not shown in FIGS. 21 to 23, or may include only a part of the above modules or assemblies, which is not particularly limited in the embodiments of the present disclosure and is only described by way of example of the above sweeping and cleaning robot.

[0131] When the float support device 30 of this embodiment is provided in the clean water tank of the cleaning device, an assembly hole 40 for attaching the float support device 30 is provided on the water tank body 20 of the clean water tank. That is, the support body 301 penetrates through the assembly hole 40, and the first sealing body 3021 on the outer periphery of the support body 301 also extends into the assembly hole 40. Thereby, the first sealing body 3021 closes the gap between the outer wall of the support body 301 and the inner wall of the assembly hole 40, preventing the cleaning liquid from flowing out through the gap. The second sealing body 3022 is located outside the assembly hole 40 and abuts against the inner edge of the assembly hole 40. Therefore, the second sealing body 3022 closes the inner edge of the assembly hole 40 to prevent the cleaning liquid from entering the assembly hole 40. Thereby, the first sealing body 3021 and the second sealing body 3022 can close the assembly hole 40 over the entire circumference, improving the sealing performance between the float support device 30 and the assembly hole 40, avoiding the phenomenon that the cleaning liquid leaks from the gap between the float support device 30 and the assembly hole 40 and damages the electronic components inside the cleaning device, and improving the service life of the cleaning device.

[0132] Note that the inner edge of the assembly hole 40 is the edge closer to the water tank body 20 of the assembly hole 40. The cleaning liquid may be clean water, a cleaning liquid, or a mixed solution of clean water and a cleaning liquid. The first sealing body 3021 and the second sealing body 3022 are made of an elastic sealing material such as rubber to improve the sealing performance of the first sealing body 3021 and the second sealing body 3022.

[0133] In the above embodiment, as shown in FIGS. 28 and 29, the first sealing body 3021 includes a connecting body 30212 snapped onto the support body 301, and at least one sealing ring 30211 that can be press-fitted with the assembly hole 40 along the axial direction is provided on the connecting body 30212.

[0134] In a specific application, the number of the sealing rings 30211 can be set according to the depth of the assembly hole 40, that is, the greater the depth of the assembly hole 40, the more the number of the sealing rings 30211, and the smaller the depth of the assembly hole 40, the fewer the number of the sealing rings 30211.

[0135] By providing the sealing ring 30211 on the connecting body 30212, on the premise of ensuring the sealing effect, the frictional force between the first sealing body 3021 and the assembly hole 40 can be reduced, and the first sealing body 3021 can extend into the assembly hole more smoothly.

[0136] By the interference fit between the sealing ring 30211 and the assembly hole 40, the sealing effect of the first sealing body 3021 can be further improved, and it is possible to avoid the cleaning liquid from leaking out from the gap between the support body 301 and the inner wall of the assembly hole 40.

[0137] Furthermore, as shown in FIG. 29, the sealing ring 30211 is integrally formed with the connecting body 30212, and there is no joint that affects the sealing effect between the sealing ring 30211 and the connecting body 30212, so that the sealing property of the first sealing body 3021 can be improved, and the assembly process between the sealing ring 30211 and the connecting body 30212 can be eliminated.

[0138] Furthermore, as shown in FIGS. 28 and 29, the second sealed body 3022 is integrally formed with the first sealed body 3021, and the first sealed body 3021 is integrally formed with the second sealed body 3022. As a result, there is no joint that affects the sealing effect between the first sealed body 3021 and the second sealed body 3022, the sealing performance of the sealing member 302 can be improved, and the assembly process between the first sealed body 3021 and the second sealed body 3022 can be eliminated.

[0139] Here, the first sealed body 3021 can employ a seal ring snapped onto the outer periphery of the support body 301. The outer diameter of the seal ring is larger than the outer diameter of the assembly hole 40. The seal ring is abutted against the inner edge of the assembly hole 40 to block the edge of the assembly hole 40, thereby preventing the cleaning liquid from entering the assembly hole 40. Furthermore, by adopting a simple structure for the seal ring in the first sealed body 3021, the overall structure of the sealing member 302 can be simplified, and the assembly and maintenance of the sealing member 302 can be facilitated.

[0140] Furthermore, as shown in FIGS. 25 and 28, a detachable connecting member 303 detachably connected to the water tank body 20 is further provided on the support body 301.

[0141] The support body 301 is detachably connected to the water tank body 20, facilitating the detachment of the float support device 30 from the water tank body 20. When the float support device 30 is damaged, the float support device 30 can be removed and replaced.

[0142] Specifically, the detachable connecting member 303 includes at least one connecting boss 3033 and at least one first bolt 3032, and a first threaded hole 3031 threadably connected to the first bolt 3032 is provided on the connecting boss 3033.

[0143] Generally, there are two connection bosses 3033 and two first bolts 3032. The two connection bosses 3033 are respectively provided on opposite sides of the support body 301, which can improve the mounting firmness of the float support device 30. In a specific application, as shown in FIGS. 25 and 27, a second threaded hole 2012 is provided on the water tank body 20, and the assembly of the float support device 30 and the water tank body 20 is realized by the threaded connection of the first bolt 3032 with the first threaded hole 3031 and the second threaded hole 2012.

[0144] Specifically, as shown in FIGS. 25, 26 and 28, the support body 301 includes a water inlet pipe 3012 and a float support rack 3011. A first cavity 3013 for accommodating the float 50 is provided on the float support rack 3011, and the water inlet pipe 3012 communicates with the first cavity 3013.

[0145] The float support rack 3011 is movably connected to the float 50. One end of the water inlet pipe 3012 passes out from the assembly hole 40. Since the float support rack 3011 is arranged inside the water tank body 20, when it is necessary to inject water into the water tank body 20, the water inlet pipe 3012 is connected to an external water source, and the liquid enters the water tank body 20 through the water inlet pipe 3012 and the first cavity 3013 of the float support rack 3011. When the inside of the water tank body 20 is filled with the liquid, the float 50 is lifted by the buoyancy of the liquid, enters the first cavity 3013, and closes the water inlet pipe 3012, thereby realizing the purpose of automatic stop of liquid injection.

[0146] As shown in FIGS. 24, 25, 28 and 29, the embodiment of the present disclosure provides a clean water tank, which includes a water tank body 20 and the above-mentioned float support device 30. The water tank body 20 is provided on the main body, and an assembly hole 40 is provided on the box wall of the water tank body 20. The float support device 30 is mounted on the assembly hole 40. The first sealed body 3021 of the float support device 30 is located in the assembly hole 40 to close the gap between the outer wall of the support body 301 and the inner wall of the assembly hole 40. The second sealed body 3022 of the float support device 30 abuts against the inner edge of the assembly hole 40 to close the inner edge of the assembly hole 40.

[0147] Specifically, the water tank body 20 includes a water storage part and a cover body 201. The water storage part is detachably connected to the cover body 201, enabling the cover body 201 to be easily removed and the interior of the water storage part to be cleaned. In some embodiments, the assembly hole 40 is opened on the lighter cover body 201, facilitating the installation operation of the float support device 30.

[0148] Note that the float support device 30 according to this embodiment can adopt the float support device 30 of the above embodiment. For the specific implementation and working principle of the float support device 30, reference may be made to the corresponding content of the above embodiment, and details will not be repeated here.

[0149] Furthermore, as shown in FIGS. 26, 27, and 28, a mounting portion 2011 is provided on the inner wall of the water tank body 20, and a second screw hole 2012 is opened on the mounting portion 2011. The first bolt 3032 of the float support device 30 is threadedly connected to the first screw hole 3031 on the first tab of the float support device 30 and the second screw hole 2012, enabling the float support device 30 to be detachably connected to the water tank body 20.

[0150] Since the number of the second screw hole 2012 and the first screw hole 3031 is the same, the first bolt 3032 can be threadedly connected to the first screw hole 3031 and the second screw hole 2012, realizing the assembly of the float support device 30 and the water tank body 20.

[0151] The embodiments of the present disclosure provide a cleaning device including a main body and the above-mentioned clean water tank provided on the main body.

[0152] According to the float support device, the clean water tank, and the cleaning device provided by the embodiments of the present disclosure, the float support device closes the gap between the outer wall of the support body and the inner wall of the assembly hole by the first sealed body, prevents the cleaning liquid from flowing out through the gap, closes the inner edge of the assembly hole by the second sealed body, and prevents the cleaning liquid from entering the assembly hole. By closing the assembly hole over the entire circumference by the first sealed body and the second sealed body, the sealing performance between the float support device and the assembly hole is further improved, avoiding the phenomenon that the cleaning liquid leaks out from the gap between the float support device and the assembly hole and damages the electronic components inside the cleaning device, and improving the service life of the cleaning device.

[0153] In addition, the clean water tank according to this embodiment can adopt the clean water tank of the above embodiment. For the specific implementation and working principle of the clean water tank, reference may be made to the corresponding content of the above embodiment, and details are not repeated here.

[0154] Finally, it should be noted that each embodiment in this specification is described progressively, each embodiment focuses on the differences from other embodiments, and the same or similar parts between each embodiment can be referred to each other.

[0155] The above embodiments are used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in each of the above embodiments or equivalently replace some of their technical features. It should be understood that these modifications and replacements do not deviate from the spirit and scope of the technical solutions of each embodiment of the present disclosure corresponding to the technical solutions.

Claims

1. A water automatic exchange assembly comprising a control device and a water tank assembly, wherein the control device is configured to realize automatic addition of clean water to the water tank assembly, The water tank assembly includes a clean water tank body, a water inlet pipe configured to add clean water into the clean water tank body, a floating valve provided on the clean water tank body and configured to move up and down with the change of the water surface height in the clean water tank body, In response to the floating valve being in the first position, the control device controls the water inlet pipe to stop adding clean water into the clean water tank body, In response to the floating valve being in the second position, the floating valve closes the outlet of the water inlet pipe for adding water to the clean water tank body. A water automatic exchange assembly characterized by this.

2. The floating valve includes a pivot rod having a first end pivotally connected to a fixed rotation axis and a second end provided opposite to the first end, a floating body portion connected to the second end and configured to rotate relative to the first end of the pivot rod as the water surface in the clean water tank body rises until the floating valve is in the first position. The water automatic exchange assembly according to claim 1.

3. In response to the floating valve being in the first position and the water surface in the clean water tank body continuing to rise, the floating body portion drives the pivot rod to rotate relative to the fixed rotation axis until the floating valve is in the second position. The water automatic exchange assembly according to claim 2.

4. The floating valve further includes a plug body, The plug body is movably connected to the first end of the pivot rod and is configured to move toward or away from the outlet of the water inlet pipe by the pressing of the first end of the pivot rod to open and close the outlet of the water inlet pipe. The water automatic exchange assembly according to claim 2 or 3.

5. The plug body has a cavity, and the cavity has a downward opening, The first end of the pivot rod is freely movable to extend into the cavity, and includes a push rod configured to press against opposite side walls of the cavity with the rotation of the pivot rod to move the plug body toward or away from the outlet of the water inlet pipe. The water automatic exchange assembly according to claim 4.

6. The water tank assembly includes It further includes a fixed sleeve shell for accommodating the outlet of the water inlet pipe, the plug body and the first end of the pivot rod. The first end of the pivot rod is connected between the opposing side walls of the fixed sleeve shell via the fixed rotation axis, and the pivot rod is configured to be rotatable relative to the fixed sleeve shell around the fixed rotation axis. The automatic water exchange assembly according to claim 5.

7. On the inner wall of the fixed sleeve shell, at least one slide configured to be slidably connected to the plug body is provided. The automatic water exchange assembly according to claim 6.

8. On the outer wall of the plug body, at least one slide rail is provided, and the slide rail cooperates with the slide to achieve a sliding connection. The automatic water exchange assembly according to claim 7.

9. The plug body On the end face of the plug body that abuts against the outlet of the water inlet pipe, it further includes a soft rubber gasket configured to respond to the movement of the plug body toward or away from the outlet of the water inlet pipe, and the soft rubber gasket opens and closes the outlet of the water inlet pipe. The automatic water exchange assembly according to any one of claims 4 to 8.

10. The outlet of the water inlet pipe has a conical structure. The automatic water exchange assembly according to any one of claims 1 to 9.

11. A water overflow hole is provided at the top of the clean water tank body and communicates with the outside through a water overflow pipe. The automatic water exchange assembly according to any one of claims 1 to 10.

12. The automatic water exchange assembly A signal transmitting component configured to transmit a sensing signal, A signal sensing component configured to receive a sensing signal, and further includes, One of the signal transmitting component and the signal sensing component is provided inside the floating body part, and the other of the signal transmitting component and the signal sensing component is provided on the side wall of the clean water tank body. In response to the floating body part moving and the floating valve being in the first position, the signal sensing component is triggered, and the control device controls the water inlet pipe to stop adding clean water into the clean water tank body. The automatic water exchange assembly according to any one of claims 2 to 10.

13. The signal transmitting component includes a magnet, and the signal sensing component includes a Hall element. The automatic water exchange assembly according to claim 12.

14. Comprising a float support device, the float support device being adapted to the water tank assembly, including a support body, and a sealing member being provided on the outer periphery of the support body, The sealing member includes a first sealing body and a second sealing body connected to the first sealing body. The first sealing body can extend into the assembly hole of the clean water tank body so as to block the gap between the outer wall of the support body and the inner wall of the assembly hole. The second sealing body abuts against the inner edge of the assembly hole so as to block the inner edge of the assembly hole. The automatic water exchange assembly according to claim 1.

15. The first sealing body includes a connector snapped onto the support body, and at least one sealing ring axially provided on the connector and capable of interference fitting with the assembly hole. The automatic water exchange assembly according to claim 14.

16. The sealing ring is integrally formed with the connector. The automatic water exchange assembly according to claim 14 or 15.

17. The second sealing body is integrally formed with the first sealing body. The automatic water exchange assembly according to any one of claims 14 to 16.

18. A detachable connecting member detachably connected to the water tank body is further provided on the support body. The automatic water exchange assembly according to any one of claims 14 to 17.

19. The detachable connecting member includes at least one connecting boss and at least one bolt, and a first threaded hole threadably connected to the bolt is provided on the connecting boss. The automatic water exchange assembly according to claim 18.

20. The support body further includes a water inlet pipeline and a float support rack. A cavity for accommodating a float is provided on the float support rack, and the water inlet pipeline communicates with the cavity. The automatic water exchange assembly according to any one of claims 14 to 19.

21. A self-cleaning maintenance station, characterized by including a water storage chamber for accommodating the automatic water exchange assembly according to any one of claims 1 to 20.

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