CN116135116A

CN116135116A - Water tank and cleaning device

Info

Publication number: CN116135116A
Application number: CN202111363992.0A
Authority: CN
Inventors: 黄竹生; 毕金廷; 王箭; 班永
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-05-19

Abstract

The present disclosure provides a water tank and a cleaning device, comprising a tank body with an inner cavity, and an air duct arranged in the inner cavity of the tank body, wherein the air duct is respectively provided with an air duct inlet and an air duct outlet at different positions of the tank body; the water baffle is arranged on the inner wall of the box body at a position adjacent to the outlet of the air duct and is configured to block the pushed water level; the water baffle is provided with a through hole for air flow to pass through. The water tank that this disclosure provided can prevent that liquid from drawing out the water tank from the wind channel export through the breakwater blockking by the water level that pushes up.

Description

Water tank and cleaning device

Technical Field

The present disclosure relates to the field of water storage technologies, and in particular, to a water tank; the disclosure also relates to a cleaning device for the water tank.

Background

The cleaning equipment comprises a floor cleaning machine, a dust collector, a floor sweeping robot and the like, plays a role in efficient cleaning in various places such as municipal sanitation, manufacturing workshops, indoor environments and the like, reduces the cleaning labor cost, improves the working efficiency and is indispensable equipment in the modern society.

At present, some cleaning devices are provided with a water tank, an air duct and a fan, wherein in the cleaning process, the air duct of the fan provides negative pressure to suck sewage in a cleaning area into the water tank. The cleaning equipment is large in movement speed change under the working conditions of starting, collision, obstacle crossing and the like, sewage in the water tank fluctuates, the water level part close to the fan can be high by being shot due to speed change, sewage is sucked into the fan through the air duct, and the sewage is discharged to a cleaning area through the fan, so that ineffective cleaning is caused.

Disclosure of Invention

The present disclosure provides a water tank and a cleaning apparatus in order to solve the problems existing in the prior art.

According to a first aspect of the present disclosure, there is provided a water tank including a body and a water tank provided on the body, the water tank including:

the box body is provided with an inner cavity;

the air duct is arranged in the inner cavity of the box body, and an air duct inlet and an air duct outlet are formed at different positions of the box body respectively;

and the water retaining part is arranged on the inner wall of the box body at a position adjacent to the outlet of the air duct and is used for blocking the pushed water level.

In one embodiment of the disclosure, a fan accommodating cavity which is opened downwards is arranged at the bottom of the box body, the fan accommodating cavity extends from the bottom of the box body to the top direction of the box body, and the air duct outlet is arranged at the top of the fan accommodating cavity; the enclosing side wall of the fan accommodating cavity and part of the side wall of the box body enclose an annular air duct in the air duct.

In one embodiment of the present disclosure, the shape of the water blocking portion matches the shape of the annular air duct, and the water blocking portion is disposed in the annular air duct between the fan housing chamber and the case.

In one embodiment of the present disclosure, the water blocking portion is a water blocking plate, and a through hole through which the air flow passes is provided on the water blocking plate.

In one embodiment of the disclosure, the water baffle is connected to a surrounding side wall of the fan accommodating cavity and a side wall corresponding to the box body.

In one embodiment of the present disclosure, the water deflector is disposed at a position not higher than a preset water line in the tank.

In one embodiment of the present disclosure, the water deflector is configured to float on the surface of the liquid within the tank.

In one embodiment of the present disclosure, the water deflector is made of a flexible material.

In one embodiment of the present disclosure, a water level detection device is further provided in the tank, the water level detection device including a first detection probe and a second detection probe and configured to: the first detection probe and the second detection probe are triggered when they are turned on by a liquid.

In one embodiment of the disclosure, the first detection probe and the second detection probe are respectively disposed at two opposite sides of the extending direction of the air duct at intervals.

In one embodiment of the present disclosure, the air duct inlet and the air duct outlet are respectively disposed at opposite ends of the case, and an open area of the air duct is formed in the case from the air duct inlet to the fan accommodating chamber.

In one embodiment of the disclosure, a containing groove deviating from the extending direction of the air duct is formed in the side wall of the box body, which is positioned in the open area and the annular air duct, and extends along the height direction of the side wall of the box body; the first detection probe or/and the second detection probe are arranged in the accommodating groove.

In one embodiment of the present disclosure, the bottom end of one of the first and second detection probes is not higher than a preset water line, and the other bottom end is higher than the preset water line.

In one embodiment of the disclosure, a gap is left between at least one of the first detection probe and the second detection probe and a side wall of the box body.

In one embodiment of the present disclosure, the water tank is a sewage tank.

According to a second aspect of the present disclosure, there is also provided a water tank including:

the box body is provided with an inner cavity;

The beneficial effects of the present disclosure lie in that, the air current in the wind channel influences the liquid water level of water tank inner chamber, and liquid pushes away highly to wind channel outlet direction, and the breakwater setting in the water tank can block by the water level that pushes away on the box inner wall adjacent wind channel export position, prevents that liquid from taking out the water tank from the wind channel export. And be provided with the through-hole on the breakwater, the air current in the wind channel can pass the through-hole and flow to the wind channel export.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a cross-sectional view of a self-moving cleaning robot provided by an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a drum portion provided by an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a briquette portion of a cylinder provided in an embodiment of the present disclosure;

FIG. 4 is an exploded view of one end of a cylinder provided in an embodiment of the present disclosure;

FIG. 5 is an exploded view of a machine body, drum cover provided in one embodiment of the present disclosure;

FIG. 6 is a schematic structural view of a rotation stopping groove according to an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a roller bracket, roller cover provided by an embodiment of the present disclosure;

FIG. 8 is a cross-sectional view of a front portion of a body provided in an embodiment of the present disclosure;

fig. 9 is a schematic view of a water supply apparatus according to an embodiment of the present disclosure;

FIG. 10 is a schematic view showing an internal structure of a water supply apparatus according to an embodiment of the present disclosure;

FIG. 11 is an exploded view of a body and floating assembly provided in one embodiment of the present disclosure;

FIG. 12 is a schematic view of a second hinge shaft and a support base provided in an embodiment of the present disclosure;

FIG. 13 is a longitudinal cross-sectional view of an intermediate position of a sewage tank provided by an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of a battery, heat dissipating module provided by an embodiment of the present disclosure;

FIG. 15 is an exploded view of a battery, drive wheel provided by an embodiment of the present disclosure;

FIG. 16 is an exploded view of a sewage tank provided by an embodiment of the present disclosure;

FIG. 17 is a transverse cross-sectional view of a sewage tank provided by an embodiment of the present disclosure;

FIG. 18 is a transverse cross-sectional view of a portion of a sewer tank inlet and drain port provided by an embodiment of the present disclosure;

fig. 19 is an exploded view of a dust collecting device provided by an embodiment of the present disclosure;

FIG. 20 is a first position schematic view of a fool-proof mechanism provided by an embodiment of the present disclosure;

FIG. 21 is a schematic view of a fool-proof mechanism provided in an embodiment of the present disclosure;

fig. 22 is a schematic structural view of a dust collecting device and a fool-proof mechanism provided in an embodiment of the present disclosure;

FIG. 23 is an exploded view of a sewage tank and a machine body provided by an embodiment of the present disclosure;

FIG. 24 is a top view of a lower housing of the tank provided by an embodiment of the present disclosure;

fig. 25 is a cross-sectional view of a water tank in a horizontal direction provided by an embodiment of the present disclosure;

fig. 26 is a vertical sectional view of a water tank provided by an embodiment of the present disclosure;

FIG. 27 is a bottom view of a self-moving cleaning robot provided by an embodiment of the present disclosure;

FIG. 28 is a flow chart of a robot control method provided by an embodiment of the present disclosure;

FIG. 29 is a schematic view of the overall structure of a cleaning system in one embodiment of the present disclosure;

FIG. 30 is a schematic diagram of a base station of a cleaning system in one embodiment of the present disclosure;

FIG. 31 is a schematic diagram of the air drying system of the cleaning system in one embodiment of the present disclosure;

FIG. 32 is a partial schematic diagram of a base station of a cleaning system in one embodiment of the present disclosure;

FIG. 33 is a cross-sectional view of a base station of a cleaning system in one embodiment of the present disclosure;

FIG. 34 is a schematic diagram of the operation of a cleaning system in one embodiment of the present disclosure;

fig. 35 is a flow chart of the cleaning method of the present disclosure.

The one-to-one correspondence between the component names and the reference numerals in fig. 1 to 35 is as follows:

1. a body; 11-A, a floating part; 11-B, a fixing part; 101. a mounting cavity; 102. the clean water is connected with the port; 103. a water-free sensor; 1011. a limit clamping groove; 120. a hinge shaft; 13. a universal wheel; 14. a fall sensor; 15. a water tank; 16. a battery; 160. a battery mounting rack; 161. a connecting wire; 17. a jack-up portion; 18. a support base; 19. a rotating shaft gland; 2. a roller assembly; 20. a roller; 200. an assembly groove; 21. a drive assembly; 210. a rotating member; 22. briquetting; 221. a rotation stopping part; 23. an elastic device; 24. a base assembly; 241. a roller end cap; 2410. a first screw sleeve; 2411. a guide rod; 242. a fixing seat; 2420. a second screw sleeve; 243. a drum end cover; 2431. flanging; 2432. a rotation stopping structure; 25. a rotating shaft; 26. a bearing; 27. a positioning structure; 28. a roller bracket; 280. a rotation stopping groove; 281. an avoidance space; 282. a locking clamping groove; 283. limiting buckle; 284. a side wall portion; 29. a drum cover plate; 291. a slide block; 292. a locking member; 2920. an engagement portion; 31. a first air duct; 310. a first air duct outlet; 32. a second air duct; 320. a second air duct inlet; 321. a second air duct outlet; 322. a second channel; 323. a first channel; 33. a third air duct; 4. a sewage tank; 401. an upper housing; 4010. a third sidewall; 4011. a fourth sidewall; 402. a middle shell; 4020. a first sidewall; 4021. a second sidewall; 403. a lower housing; 4030. a sidewall; 4031. a bottom wall; 41. a fan accommodating cavity; 410. enclosing the side wall; 411. a top wall; 42. a wind shielding mechanism; 43. a water outlet; 430. a sewage suction pipe; 4301. butt joint; 431. a first movable valve body; 44. a cover plate; 45. a fool-proof mechanism; 451. a cam; 4511. a protruding portion; 452. a torsion spring; 453. a pressure receiving portion; 46. a first gate; 460. a first sealing soft adhesive; 47. a second gate; 470. a second sealing soft adhesive; 48. a water baffle; 49. a water level detecting device; 490. a receiving groove; 491. a first detection probe; 492. a second detection probe; 5. clear water tank, 51, water inlet; 511. a second movable valve body; 52. a heat dissipation module; 53. a delivery conduit; 530. a clean water suction pipe; 531. a clean water tank communication valve; 532. an elastic valve stem; 54. a water pump; 6. a dust collecting device; 61. a fixed bracket; 62. a filter screen; 63. a pressing section; 7. a fan assembly; 8. a driving wheel; 81. a driving wheel mounting seat; 9. an auxiliary cleaning assembly; 90. a water supply device; 901. a main water inlet; 902. a water supply channel; 91. a spray head; 92. water homogenizing strips; 93. a wiper blade; 94. sealing edges; A. a cleaning device; B. a base station; 121. a base station body; 1211. a receiving chamber; 1212. a concave groove; 1213. a flaring structure; 1214. a guide wheel; 1215. a positioning groove; 122. an air drying system; 1221. an air outlet; 1222. air-drying the air duct; 1223. a base station fan; 1224. a heating device; 123. a waterway assembly; 124. a sewage bucket; 125. and a water cleaning barrel.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

The present disclosure provides a self-moving cleaning robot comprising a body capable of walking on a work surface by means of a control unit, the body being provided with a cleaning device configured for cleaning the work surface. The self-moving cleaning robot may be a sweeping robot, and the cleaning work surface thereof may be a floor.

The machine body is also provided with an air duct, a sewage tank, a fan assembly and the like. Wherein the air duct includes a first air duct, an inlet of the first air duct is adjacent to the cleaning device and configured to draw in the dirty water after the cleaning device has cleaned the work surface, and the dirty water tank is configured to receive the dirty water after the cleaning work surface. The sewage tank is internally provided with a second air channel, the fan assembly is provided with a third air channel, and the first air channel and the third air channel are respectively communicated with the second air channel; the fan assembly can provide negative pressure for the three air channels, and after the water vapor extracted by the first air channel enters the second air channel of the sewage tank, liquid falls into the sewage tank, and the gas is discharged through the suction air channel of the fan assembly.

The first air duct is narrow, so that the air speed in the first air duct is high, and sewage after the working face is cleaned can be sucked away. The second air channel in the sewage tank is relatively wider, the flow rate of the water vapor in the first air channel is reduced after the water vapor enters the second air channel, the air pressure is reduced, the sewage with heavier mass is separated from the gas, the sewage is stored in the sewage tank, and the separated gas is sucked into the third air channel.

For convenience of the following description, the embodiment of the present disclosure takes the traveling direction of the machine body as the front. The cleaning device is arranged near the front part of the machine body, the fan assembly is arranged near the rear part of the machine body, the first air channel is arranged behind the cleaning device, the sewage tank is arranged between the first air channel and the fan assembly, and the first air channel, the second air channel and the third air channel have longer paths, so that the water and the air can be fully separated in the second air channel of the sewage tank.

The air outlet of the fan assembly faces the working face, and the working face cleaned by the cleaning device is blown to accelerate evaporation of residual water stains on the working face. The heat of the fan assembly can heat the air flow, so that the evaporation speed of water stains on the working surface is accelerated, and the energy of the fan assembly is fully utilized.

The machine body is also provided with a clean water tank for storing clean water, cleaning agent and other cleaning liquids, and the clean water tank is configured to provide the cleaning liquid to the cleaning device so as to improve the decontamination capability of the cleaning device and the working efficiency of the self-moving cleaning robot.

Fig. 1 to 27 show a specific embodiment of a self-moving cleaning robot of the present disclosure, which includes a machine body 1, and a cleaning device, an air duct, a sewage tank 4, a clean water tank 5, a fan assembly 7, etc. are provided on the machine body 1. The air channels comprise a first air channel 31 arranged on the machine body 1, a second air channel 32 arranged in the sewage tank 4 and communicated with the first air channel 31, and a third air channel 33 arranged in the fan assembly 7 and communicated with the second air channel 32.

As shown in fig. 1, the cleaning device is disposed at the front of the machine body 1, the inlet of the first air duct 31 is disposed at the rear of the cleaning device and faces the working surface, when the machine body 1 walks along the working surface, the inlet of the first air duct 31, the cleaning device and the working surface enclose a relatively closed space, the fan assembly 7 rotates to form negative pressure, so that air flow flowing from the cleaning device to the air outlet direction of the fan assembly 7 is formed in the air duct, and the first air duct 31 can suck sewage after the cleaning device cleans the working surface. The air duct not only can suck away sewage, but also can suck away solid particles on the working surface. When the sewage contains solid particles, the first air duct 31 can suck the sewage and the solid particles at the same time.

The bottom of the machine body 1 is also provided with a driving wheel 8 for walking, the driving wheel 8 is arranged at the rear of the cleaning device, the cleaning device can clean dirt, water stains and the like on the working surface in front of the driving wheel 8, so that dust and water stains are prevented from affecting the friction between the driving wheel 8 and the working surface, the driving wheel 8 is protected, and the movement capability of the machine body 1 is improved.

Cleaning device

The cleaning means may comprise a wipe, a brush, a roller, a drum, etc., which is capable of wiping or sweeping the work surface during the travel of the machine body 1. In one embodiment of the disclosure, the cleaning device comprises a roller 20, a mounting cavity is arranged on the machine body 1, and the roller 20 is rotatably connected in the mounting cavity of the machine body 1 and can roll along a working surface. The surface of the drum 20 may be provided with a cleaning layer, which may be sponge, cotton cloth, nap, etc., which can wipe the working surface during rolling and adhere to dirt such as dust on the working surface. The drum 20 may be provided in a hollow structure to reduce weight.

The drum 20 may be rolled in different ways. In some embodiments, the roller 20 may rotate by virtue of friction between the machine body 1 and the working surface while walking; in other embodiments, the drum 20 may be rotated by the driving action of the driving mechanism.

In one embodiment of the disclosure, as shown in fig. 2, a driving assembly 21 is disposed on the machine body 1, and the driving assembly 21 is connected to the drum 20 to drive the drum 20 to rotate. The driving assembly 21 comprises a motor and a transmission mechanism, wherein the output end of the motor is in transmission connection with one end of the roller 20 through the transmission mechanism, and the roller 20 is driven to rotate.

To facilitate cleaning and replacement of the drum 20, one end of the drum 20 may be detachably connected to the driving assembly 21, and the other end may be detachably and rotatably connected to the machine body 1. Further, in order to reduce wind loss at the inlet of the first wind tunnel 31, both ends of the drum 20 are hermetically disposed at corresponding positions of the machine body 1.

In one embodiment of the present disclosure, the drum 20 is mounted on the machine body 1 in the manner of the drum assembly 2. Referring to fig. 5 and 11, the drum assembly 2 includes a drum bracket 28 and a drum 20 mounted on the drum bracket 28, and a drum cover 29 restraining the drum 20 on the drum bracket 28.

Referring to fig. 11, a mounting cavity 101 is provided at a corresponding position on the machine body 1, and the shape of the mounting cavity 101 is matched with that of the drum assembly 2, so that the drum assembly 2 can be mounted in the mounting cavity 101 of the machine body 1, and the drum 20 can extend out of the lower end surface of the machine body 1 for fitting with a working surface, and the working surface can be cleaned by the rotation of the drum 20.

With continued reference to fig. 5 and 11, the roller support 28 may have a frame-shaped, trough-shaped, or like structure, the roller support 20 being provided with a roller cavity in which the roller 20 is rotatably connected, and the roller cover 29 being in the form of a frame that fits over the open end of the roller support 28 and retains the roller 20 in the roller cavity of the roller support 28, with a portion of the roller 20 extending from the frame of the roller cover 29 for contact with a work surface. The drive assembly 21 may be in driving connection with a rotating member 210 provided in the drum bracket 28 directly or through a transmission mechanism. One end of the drum 20 is provided with an assembly groove 200 for being assembled with a rotating member 210 to drive the drum 20 to rotate. The rotor 210 may be provided with a flange and/or groove arrangement to mate with a corresponding flange and/or groove arrangement in the mounting groove 200. Alternatively, the end of the roller bracket 28 for cooperating with the transmission mechanism is provided with a yielding structure, such as a yielding groove, and the rotating member 210 is rotatably connected to the machine body and connected to the transmission mechanism. When the drum stand 28 is mounted, the corresponding position of the drum stand 28 may be allowed to pass through the rotation member 210 directly, thereby mounting the drum stand 28 in the mounting cavity 101 of the machine body 1, which will not be described in detail.

The other end of the roller 20 may be sealingly connected to an end face of the roller bracket 28 by means of a pressure block 22. Specifically, one end of the drum 20 is provided with a pressing block 22, and the pressing block 22 is preloaded at the corresponding end of the drum 20 by an elastic device 23. The end face outside the pressing block 22 is abutted with the corresponding end face of the roller cavity of the roller bracket 28, and the end face outside the pressing block 22 and the end face of the roller cavity form contact seal under the action of the elastic device 23.

The roller 20 is also rotatably connected with the roller bracket 28 through the pressing block 22, and the pressing block 22 can be rotatably connected with the roller bracket 28 or the roller 20.

As shown in fig. 2, 3 and 4, the drum 20 further includes a base assembly 24 supported within the drum 20, a rotation shaft 25, the base assembly 24 being relatively fixed to the drum 20, and an axial direction of the base assembly 24 being coincident with an axial direction of the drum 20. The rotation shaft 25 is configured to move along the axial direction of the base assembly 24, the rotation shaft 25 is in relative rotation connection with the pressing block 22, the rotation shaft 25 applies outward pressure to the pressing block 22 under the action of the elastic device 23, so that the pressing block 22 is tightly attached to the inner wall of the roller cavity, and sealing between the pressing block and the roller cavity is achieved. The base assembly 24 may be made of a self-lubricating material, which reduces friction with the rotating shaft 25 and increases the service life.

The base assembly 24 includes a roller cover 243 for supporting within the roller 20, and a fixing base 242 fixed to the roller cover 243, and the rotation shaft 25 passes through the fixing base 242 and is configured to move in an axial direction of the roller 20.

Specifically, the fixing base 242 extends axially relative to the roller 20, a guide channel is disposed in the fixing base 242, the rotating shaft 25 is disposed in the guide channel of the fixing base 242, and the rotating shaft 25 can move along the extending direction of the fixing base 242 when being acted by an external force, so as to improve the stability of the rotating shaft 25.

The base assembly 24 further includes a roller end cap 241 coupled to the holder 242 or the roller end cap 243, and the elastic device 23 is disposed between the rotation shaft 25 and the roller end cap 241. When the roller 20 is installed in the installation cavity of the machine body 1, the elastic device 23 pre-presses the pressing block 22 on the end surface of the installation cavity through the rotating shaft 25. The roller end cap 241 may be provided in a "concave" configuration with the resilient means 23 disposed within the roller end cap 241.

The roller end cover 241, the fixing seat 242 and the roller end cover 243 of the base assembly 24 may be sequentially connected from inside to outside with respect to the roller 20, and the three may be integrally formed or may be configured as a split connection structure. The connection mode of the split connection structure comprises, but is not limited to, threaded connection, screw connection, bonding, plugging and the like.

In the embodiment of the present disclosure, the roller end cover 241, the fixing base 242 and the roller end cover 243 of the base assembly 24 are in a separate type connection structure to facilitate the installation of the elastic device 23 and the rotation shaft 25. The roller end cover 241 and the fixing seat 242, and the fixing seat 242 and the roller end cover 243 are clamped by the positioning structure 27, so that the positioning among the three can be facilitated during the installation. The roller end cover 241, the fixing base 242 and the roller end cover 243 may be further fixed by screws to improve connection stability. Screw holes or screw sleeves for threading screws may be provided on the roller end cover 241, the fixing base 242, and the roller end cover 243.

In a specific embodiment, referring to fig. 4, the roller end cover 241 is provided with a first screw sleeve 2410 on opposite sides thereof, the fixing base 242 is provided with a second screw sleeve 2420 on opposite sides thereof, and the roller end cover may be provided with a threaded hole. The threaded hole, the first screw sleeve 2410 and the second screw sleeve 2420 are coaxially disposed, and screws pass through the threaded hole, the first screw sleeve 2410 and the second screw sleeve 2420 to fixedly connect the roller end cover 241, the fixing base 242 and the roller end cover 243 together.

The fixing base 242 may be made of self-lubricating material, and the roller end cover 241 and the roller end cover 243 may be made of other common materials, thereby saving costs.

The elastic device 23 may be a compression spring, a spring plate, an elastic block, or the like. In the embodiment of the present disclosure, the elastic means 23 employs a compression spring. The compression springs, the roller end cover 241 and the rotating shaft 25 can be connected in a plug-in fit manner.

The roller end cover 241 and/or the rotating shaft 25 may be provided with a guide structure, such as a guide rod, a guide sleeve, etc., which is matched with the compression spring, so as to guide the compression spring, thereby improving the installation stability of the compression spring.

In one embodiment, a guide rod 2411 is arranged on the roller end cover 241, and the guide rod 2411 is matched and inserted in the compression spring to fix and guide the compression spring; the rotating shaft 25 is provided with a slot, and one end of the compression spring is matched and inserted into the slot.

One end of the connecting elastic device 23 of the rotating shaft 25 can extend into the roller end cover 241 and is set as a limiting end, and the expanding end can be abutted on the end face of the fixing seat 242 to limit the position of the rotating shaft 25 and prevent the rotating shaft 25 from being separated from the fixing seat 242. The roller end cap 241 has a radial dimension sufficient to accommodate the enlarged end of the rotatable shaft 25, and the rotatable shaft 25 is axially movable into the roller end cap 241 under external forces.

The roller end cover 243 may be close to the end surface of the roller 20 and configured to have a "concave" structure adapted to the shape of the pressing block 22, the roller end cover 243 is provided with a chamber for accommodating the pressing block 22, and a limit structure is formed between the outer circumference of the pressing block 22 and the inner wall of the chamber of the roller end cover 243, so as to prevent the pressing block 22 from falling out of the chamber of the roller end cover 243. The pressing block 22 can move along the axial direction of the roller, and one end of the rotating shaft 25 passes through the roller end cover 243 to be rotatably connected with the pressing block 22. Under the driving action of the elastic device 23, the pressing block 22 partially extends out of the end cover 243 of the roller and the end surface of the roller 20 to be matched with the corresponding position of the roller bracket 20.

The edge of the roller end cover 243 is provided with a flange 2431 which is clamped with the edge of the end of the roller 20, and the position of the roller end cover 243 is limited. A rotation stopping structure 2432 may be disposed between the outer side of the roller end cover 243 and the inner side of the roller 20, where the rotation stopping structure 2432 includes grooves and protrusions that are matched with each other, one of the grooves and protrusions is disposed on the outer side of the roller end cover 243, and the other is disposed on the inner side of the roller 20, so that the roller end cover 243 can be prevented from rotating relative to the roller 20.

In order to ensure smooth rotation of the rotating shaft 25 relative to the pressing block 22, a bearing 26 may be provided between the rotating shaft 25 and the pressing block 22. Specifically, a mounting groove is formed in one side, facing the rotating shaft 25, of the pressing block 22, one end of the rotating shaft 25 is inserted into the mounting groove, a bearing 26 is arranged in the mounting groove, an outer ring of the bearing 26 is fixedly connected with the pressing block 22, and an inner ring of the bearing 26 is fixedly connected with the rotating shaft 25. One end of the connecting pressing block 22 of the rotating shaft 25 can be provided with a shaft shoulder, and the bearing 26 is clamped at the shaft shoulder.

The outer end surface of the pressing block 22 may be provided with a groove and/or a protrusion for external connection, and the concave-convex parts provided with the corresponding end surfaces of the roller bracket are matched together. The grooves and/or protrusions should be offset from the center of the compact 22 or disposed in a non-circular shape.

In a specific embodiment of the present disclosure, referring to fig. 4, 5 and 6, the outer side of the pressing block 22 is provided with a rotation stopping portion 221 extending to the outer side, the inner wall of the drum cavity is provided with a rotation stopping groove 280 matched with the rotation stopping portion 221, and the rotation stopping groove 280 may be provided in a shape matched with the rotation stopping portion 221. When the drum 20 is fitted into the drum cavity, the rotation stop 221 is fitted into the rotation stop groove 280, preventing the pressing block 22 from rotating following the drum 20.

In a specific embodiment of the present disclosure, the rotation stopping portion 221 and the rotation stopping groove 280 may have a trapezoid, a rectangle, a triangle, a polygon, etc. as is well known to those skilled in the art. By the engagement of the rotation stopper 221 with the rotation stopper groove 280, not only can the drum 20 be supported on the drum bracket 28, but also the rotation stopper 221 can be prevented from rotating relative to the drum bracket 28.

To effect the mounting and dismounting of the drum 20, the rotation stopping groove 280 penetrates to the end face of the drum bracket 28. In the assembly, one end of the drum 20 may be first fitted into the rotary member of the corresponding end of the drum bracket 28, and the other end may be directly fitted into the rotation stopping groove 280 by the rotation stopping portion 221 of the pressing block 22. Naturally, in order to ensure the sealing between the drum 20 and the end surface of the drum bracket 28, when the rotation stopping portion 221 is installed, it is necessary to move the rotation stopping portion toward the inside of the drum 20 by a predetermined distance, the elastic device 23 is put in a pre-pressed state, and after the rotation stopping portion is installed in the rotation stopping groove 280, the rotation stopping portion 221 is pushed against the side wall of the rotation stopping groove 280 by the elastic device 23. Finally, the rotation stopping portion 221 is limited in the rotation stopping groove 280 by the roller cover 29, so as to prevent the rotation stopping portion 221 from being separated from the rotation stopping groove 280.

A rotation stopping groove 280 may be provided on the drum bracket 28 and corresponds to the rotation stopping portion 221 of the pressing block 22, and the rotation stopping groove 280 radially extends out of an end of the drum bracket 28. The drum cover 29 can close the rotation stopping groove 280, and restrict the rotation stopping portion 221 to the rotation stopping groove 280. The drum cover 29 may be provided in a frame structure. The drum 20 can partially protrude from the middle of the drum cover 29 to engage the floor for cleaning.

In one embodiment of the present disclosure, referring to fig. 6, a side wall portion 284 is provided in the drum cavity of the drum bracket 28, the outer end surface of the pressing block 22 may be bonded to the end surface of the side wall portion 284, and under the action of the elastic device 23, the outer end surface of the pressing block 22 may be always kept in contact with the end surface of the side wall portion 284, so that the end surface tightness between the drum 20 and the drum bracket 28 is improved, and the end surface sealing position forms a part of the first air duct inlet, thereby improving the suction capability of the first air duct inlet.

The upper end of the side wall 284 (the open end of the cylinder chamber) is provided with a relief groove through which the rotation stop 221 of the pressing block 22 can pass to be fitted with the rotation stop groove 280 at the end position of the cylinder bracket 28. The rotation stopping groove 280 may be provided at a position of the escape groove of the side wall portion 284, for example, and will not be described in detail herein.

The drum cover 29 may be attached to the machine body 1 or the drum stand 28. The roller cover 29 is detachably connected by a specific connection method including but not limited to screw fixation, plugging, clamping, etc.

In one embodiment, the roller cover 29 is removably attached to the roller bracket 28. Referring to fig. 5 and 7, a slider 291 is provided on the drum cover 29, the slider 291 is configured to be slidably fitted on the outside of the drum cover 29, a locking member 292 is further provided on the rear or back of the drum cover 29, and the locking member 292 is fitted with the slider 291 so that a user can move the locking member 292 on the rear or back of the drum cover 29 by the movement of the slider 291 on the outside of the drum cover 29.

In a specific embodiment of the present disclosure, the slider 291 is guided and fitted in a corresponding guide groove provided on the roller cover 29 and preloaded in the first position by the elastic means, and when the slider 291 is driven to move to the second position, the elastic force of the elastic means needs to be overcome; after release, the slider 291 moves from the second position to the first position under the restoring force of the elastic means. The lock 292 may be mated with the slider 291 by a groove or other means known to those skilled in the art such that the lock 292 may move in synchronization with the slider 291. The lock member 292 may be provided with an engaging portion 2920, and the engaging portion 2920 may be provided at an end position of the lock member 292 or at any other position, for example.

When the roller cover 29 is assembled on the roller bracket 28, the locking member 292 is positioned in the escape space 281 of the roller bracket 28, so that a user can drive the locking member 292 to move in the escape space 281 of the roller bracket 28 through the sliding block 291. The drum bracket 28 is provided with a locking catch 282 at a corresponding position for cooperating with the catch 2920 such that when the slider 291 moves from the second position to the first position, the catch 2920 of the locking member 292 can move to cooperate with the locking catch 282 of the drum bracket 28 to snap the drum cover 29 with the drum bracket 28. And the engaging portion 2920 and the locking slot 282 can be kept engaged together under the action of the elastic device.

When the roller cover 29 needs to be removed, the driving slider 291 moves to the second position against the action of the elastic device, so that the slider 291 can drive the engaging portion 2920 of the locking member 292 to move to disengage from the locking slot 282, and at this time, the roller cover 29 can be removed from the roller bracket 28 for replacing or maintaining the corresponding components, such as replacing or maintaining the roller 20. The engaging portions 2920 of the locking member 292 may be provided in plurality and spaced apart along the extending direction of the drum cover 29; correspondingly, a plurality of locking clamping grooves 282 are formed in the roller support 28, so that a plurality of locking structures can be arranged in the extending direction of the roller support 28 and the roller cover 29, the roller cover 29 and the roller support 28 can be firmly clamped together, and the stability of connection between the roller support 28 and the roller cover 29 is ensured.

When the roller 20 is installed, the pressing block 22 is moved to a certain distance in the inner direction of the roller 20, so that the elastic device 23 generates pre-pressing force on the pressing block 22, then the roller 20 is installed in the roller bracket 28, and the pressing block 22 of the roller presses the corresponding end surface of the roller bracket 28 under the action of the elastic device 23, so that sealing is realized. After the roller 20 is assembled, the roller cover 29 is installed, the roller cover 29 is assembled on the roller bracket 28, the sliding block 291 of the roller cover 29 is matched with the corresponding guide groove of the roller bracket 28, then the sliding block 291 is pushed to move from the first position to the second position, the sliding block 291 drives the locking piece 292 on the roller cover 29 to move, the clamping and part 2920 of the locking piece 292 is matched with the locking clamping groove 282 on the roller bracket 28, so that the roller cover 29 is clamped with the roller bracket 28, and the roller 20 is limited between the roller bracket 28 and the roller cover 29.

When the drum 20 is removed, the slider 291 of the drum cover 29 is moved from the second position to the first position, the card and portion 2920 of the lock 292 are disengaged from the locking card slot 282 of the drum bracket 28, and then the drum cover 29 is removed and the drum 20 on the drum bracket 28 is removed.

The machine body 1 is further provided with an auxiliary cleaning assembly 9, as shown in fig. 1 and 8, the auxiliary cleaning assembly 9 is disposed close to the roller 20 and is used for assisting the roller 20 in cleaning, so that the cleaning efficiency of the roller 20 can be improved.

The auxiliary cleaning assembly 9 includes a spray head 91, the spray head 91 facing the drum 20 and configured to spray water to the drum 20. The shower head 91 is connected to the clean water tank 5, and can spray the cleaning liquid in the clean water tank 5 onto the surface of the drum 20.

Specifically, the shower head 91 may be disposed at the rear of the cleaning device and above the inlet of the first air duct 31. The spray head 91 may be provided in one or more, and when the spray head 91 is provided in a plurality, may be arranged along the axial direction of the drum 20. The spray head 91 can adopt the atomizing spray head 91, so that the cleaning liquid is sprayed more uniformly, and the consumption speed of the cleaning liquid can be saved.

In one embodiment, referring to fig. 9 and 10, a plurality of shower heads 91 are provided, and the plurality of shower heads 91 are integrally provided on the water supply device 90. The water supply device 90 may be a strip-shaped plate material, which is parallel to the drum 20. The water supply device 90 is further provided with a main water inlet 901 and a plurality of water supply passages 902, wherein the main water inlet 901 is communicated with the clean water tank 5, the plurality of spray heads 91 are communicated with the main water inlet 901 through the water supply passages 902, the clean water tank 5 supplies cleaning liquid to the plurality of water supply passages 902 through the main water inlet 901, and then the cleaning liquid is supplied to the spray heads 91 through the water supply passages 902. The water supply channels 902 may be provided in a plurality to correspond to the shower heads 91 one by one, or may be distributed in a tree shape.

To ensure that the plurality of spray heads 91 uniformly spray the cleaning liquid to the cleaning device, the plurality of spray heads 91 are uniformly distributed along the length direction of the water supply device 90, and the length, width, etc. of the plurality of water supply channels 902 are the same so that the water amount and water pressure of each spray head 91 are the same. For example, in the embodiment illustrated in fig. 9 and 10, eight spray heads 91 are provided, the eight spray heads are uniformly distributed on the water supply device 90, the total water inlet 901 is located in the middle of the water supply device 90, the water supply channel 901 extends from the position of the total water inlet 901 to two sides, and the distances from the total water inlet 901 to each spray head 91 are all the same in a branching manner, so that the water pressure and the water quantity of each spray head 91 can be ensured to be the same.

The water supply passage 902 of the water supply device 90 may be provided in a pipe structure or may be provided in a groove structure. The water supply channel 902 of the groove structure may be in sealing engagement with the surface of the body 1, thereby forming a closed channel. The water supply device 90 is connected to the body 1 by welding, bonding, screw fixing, etc.

Referring to fig. 8, the auxiliary cleaning assembly 9 further includes a water-homogenizing strip 92, the water-homogenizing strip 92 being configured to closely conform to the surface of the drum 20, and to homogenize the cleaning liquid on the surface of the drum 20 during rotation of the drum 20. Both ends of the water bars 92 extend in the axial direction of the drum 20. Referring to the view angle shown in fig. 5, the drum 20 rotates counterclockwise, the water-homogenizing strip 92 is disposed in front of the spray head 91, and the cleaning effect of the drum 20 can be improved after the cleaning liquid on the surface of the drum 20 is homogenized by the water-homogenizing strip 92 during the rotation of the drum 20.

The auxiliary cleaning assembly 9 further comprises a wiper blade 93, the wiper blade 93 being configured for a contact engagement with the surface of the drum 20. The wiper blade 93 is disposed at the rear side of the drum 20 above the inlet of the first air duct 31 and below the shower head 91. During the rotation of the drum 20, the wiper blade 93 scrapes off dirt, water stains, etc., adsorbed on the drum 20. Dirt and water stains scraped off by the wiper blade 93 can fall into the inlet of the first air duct 31 below and be sucked away by the first air duct 31. Both ends of the wiper blade 93 extend along the axial direction of the drum 20 and are closely fitted to the surface of the drum 20, so that the sealing property at the inlet of the first air duct 31 can be improved and the wind loss can be reduced.

Thereby, the drum 20 is rotated to a position of the wiper blade 93 after cleaning the working surface, whereby the wiper blade 93 can scrape off the sewage after cleaning the working surface of the drum 20 and suck the scraped sewage through the inlet of the first air duct 31. The wiper blade 93 here takes part in the upper region which encloses the inlet of the first air channel 31. Referring to fig. 8, the wiper blade 93 is positioned at the rear end of the drum 20 at the upper end of the inlet of the first air duct 31, and a sealing area is defined between the wiper blade 93, the drum 20, the working surface, and the lower area of the inlet of the first air duct 31 when the wiper blade 93 contacts the drum 20, thereby securing the suction capability of the inlet of the first air duct 31.

In the rotating process of the roller 20, the spray head 91 sprays cleaning liquid to the surface of the roller 20, the part of the roller 20 sprayed with the cleaning liquid rotates to the water homogenizing strip 92, the cleaning liquid is paved evenly through the water homogenizing strip 92, then the roller rotates to the lower working surface to wipe the working surface, the surface of the roller 20 rotates to the wiper plate 93 to clean after wiping the working surface, and dirt and water stains scraped by the wiper plate 93 can be sucked away by the first air duct 31.

The water distribution strip 92 and the wiper blade 93 of the auxiliary cleaning unit 9 have a certain elasticity, and can be elastically abutted against the surface of the drum 20, and after being rubbed against the drum 20 for a long time to be worn, can still be attached to the surface of the drum 20. The water distribution strip 92, the wiper blade 93 may be made of an elastic material such as rubber, plastic, or the like. The water-homogenizing strip 92 and the wiper blade 93 may be detachably connected to the machine body 1, and the connection modes may be clamping, bonding, screw fixing, etc., so that when the water-homogenizing strip 92 and the wiper blade 93 are worn seriously due to long-term use, the water-homogenizing strip 92 and the wiper blade 93 may be detached and replaced with new water-homogenizing strip 92 and wiper blade 93.

The bottom edge of the lower region of the inlet of the first air duct 31 can be provided with a sealing edge 94, and when the machine body 1 walks along the working surface, the sealing edge 94 is attached to the working surface, so that the sealing performance of the inlet of the first air duct 31 is further improved. The sealing edge 94 may be made of an elastic material, and may elastically abut against the working surface, and may still be attached to the working surface after wear occurs. The sealing edge 94 can be detachably connected to the edge of the first air duct 31 through clamping, bonding, screw fixing and other modes, and can be replaced when the abrasion is serious.

The bottom of the roller 20 is attached to the working surface, the wiper plate 93 above the inlet of the first air duct 31 is attached to the roller 20, and the sealing edge 94 at the edge of the bottom of the inlet of the first air duct 31 is attached to the working surface, so that a closed structure can be enclosed, the loss of wind power in the air duct is reduced, and the working efficiency is improved.

After the roller 20 is used for a period of time, the surface is worn and cannot be tightly attached to the working surface, so that the wind power loss in the air duct is large, and the first air duct 31 cannot suck the sewage scraped by the wiper plate 93.

In order to solve the above-mentioned problems, in one embodiment, as shown in fig. 8, the body 1 may be provided to include a floating portion 11-a and a fixed portion 11-B, the floating portion 11-a and the fixed portion 11-B being hinged together by a hinge shaft, so that the floating portion 11-a can be rotated up and down with respect to the fixed portion 11-B about the hinge shaft. The mounting chamber, drum 20, is disposed on the float 11-a. The roller 20 is configured to remain in contact with the work surface under the force of gravity of itself and the float 11-a.

In another embodiment of the present disclosure, the drum assembly 2 is floatingly mounted on the machine body 1. As shown in fig. 11 and 12, the drum bracket 28 is provided with a hinge shaft 120, and the drum bracket 28 is hinged with the machine body 1 through the hinge shaft 120 such that the drum bracket 28 can move up and down in the installation cavity 101 of the machine body 1 around the hinge shaft 120.

Referring to fig. 11 and 12, a groove may be formed at the edge of the bottom of the machine body 1 located in the mounting cavity 101, a supporting seat 18 matched with the hinge shaft 120 is disposed in the groove, the supporting seat 18 is provided with an arc surface matched with the hinge shaft 120, and the hinge shaft 120 can rotate relative to the supporting seat 18. Specifically, the support base 18 may include two arc surfaces capable of being respectively engaged with both ends of the hinge shaft 120. The hinge shafts 120 on the roller bracket 28 may be provided in plurality and spaced apart along the extending direction of the roller bracket 28, and correspondingly, the supporting seats 18 on the machine body 1 may be provided in plurality, corresponding to the hinge shafts 120 one by one.

The machine body 1 is also provided with a rotating shaft gland 19, the rotating shaft gland 19 is covered on a groove where the supporting seat 18 is positioned, the hinge shaft 120 is limited in the groove, and the hinge shaft 120 is matched with the supporting seat 18. The rotating shaft gland 19 is detachably connected to the machine body 1, and the connection mode can be screw fixing, inserting, riveting and the like.

By adopting the structure, the roller bracket 28, the roller 20 assembled on the roller bracket 28 and the roller assembly 2 formed by the roller cover plate 29 can integrally rotate relative to the machine body 1, so that the roller assembly 2 always enables the roller 20 to be in contact fit with the working surface under the action of self gravity, and the cleaning effect is improved.

In one embodiment of the present disclosure, in order to limit the rotation angle of the drum assembly 2, a limiting buckle 283 is provided on the drum bracket 28, and a limiting slot 1011 engaged with the limiting buckle 283 is provided on the machine body 1. Referring to fig. 11, a limit slot 1011 is provided at a side of the mounting cavity 101 of the body 1 opposite to the support base 18; accordingly, the limit catch 283 is provided at a side of the drum bracket 28 opposite to the hinge shaft 120. When in assembly, the limiting buckle 283 on the roller bracket 20 is firstly inserted into the limiting clamping groove 1011, then the hinge shaft 120 on the other side is installed in the supporting seat 18, and finally the hinge shaft 120 is limited on the supporting seat 18 of the machine body 1 through the rotating shaft gland 19. One side of the roller bracket 28 is limited by a limiting buckle 283, and the other side is limited by the cooperation of the hinge shaft, the supporting seat and the rotating shaft gland 19. This limits the rotation range of the drum bracket 28 with respect to the machine body 1 by the movable amount of the limit catch 283 in the limit catch 1011, so that the movable amount of the drum assembly 2 can be limited within a certain range.

Of course, the limiting buckle 283 may be provided on the machine body 1, and the limiting slot 1011 may be provided on the roller bracket 28, and the above-mentioned functions may be achieved as well, which will not be described in detail herein.

The driving wheels 8 for supporting the machine body 1 are arranged at the bottom of the machine body 1, and the driving wheels 8 are arranged in two and distributed on two opposite sides of the machine body 1. The machine body 1 is also provided with a universal wheel 13, and the universal wheel 13 is close to the roller 20 and can be supported on the ground together with the driving wheel 8 so as to keep the machine body 1 stable.

In one embodiment of the present disclosure, referring to fig. 11, a head of the body 1 is provided in a rectangular structure, and an outer side of a front end of the body 1 is provided with a striking plate for detecting an obstacle, and a drum 20 is provided at a bottom of the front end of the body 1. The universal wheels 13 may be provided in at least two, at positions on the machine body 1 between the drum 20 and the driving wheels 8, and at positions near both ends of the drum 20, respectively, whereby the machine body 1 can be firmly supported on the work surface by the two universal wheels 13, the two driving wheels 8.

In the walking process of the machine body 1, the roller 20 can be always attached to the working surface, so that the roller 20 is prevented from leaving the working surface due to abrasion of the surface of the roller 20 or uneven working surface, and the inlet of the first air duct 31 and the working surface support can form a closed space.

Water tank assembly

The water tank or the water tank assembly of the self-moving cleaning robot includes a sewage tank 4 and a clean water tank 5, and a second air duct is formed in the water tank. Specifically, referring to fig. 13, the sewage tank 4 has a second air channel inlet 320 and a second air channel outlet 321. The second air channel inlet 320 and the second air channel outlet 321 are respectively arranged at different positions of the water tank, referring to fig. 13, the second air channel inlet 320 and the second air channel outlet 321 are respectively positioned at two opposite sides of the water tank, so that air flow and liquid entering the water tank through the second air channel inlet 320 can flow for a certain distance along the extending direction of the water tank, in the flowing process, the liquid can gradually drop to the bottom of the water tank for storage under the action of self gravity, and the air flows out from the second air channel outlet 321 of the water tank, thereby realizing gas-liquid separation.

The second air duct 32 is located between the second air duct inlet 320 and the second air duct outlet 321, the second air duct inlet 320 is in communication with the first air duct 31, and the second air duct outlet 321 is in communication with the third air duct 33 of the fan assembly 7. The second air duct inlet 320 and the second air duct outlet 321 are both arranged at a higher position of the sewage tank 4, when the gas carrying liquid enters the inner cavity of the water tank which is relatively spacious through the second air duct inlet 320, the flow speed of the gas is reduced, the liquid carrying capacity of the gas is reduced, the liquid can be separated from the gas and remains in the sewage tank 4, and the gas can be discharged through the second air duct outlet 321. In addition, the second air duct inlet 320 is arranged at a high position, so that air flows upwards in the inner cavity of the tank, and liquid is separated from air under the action of gravity and remains in the sewage tank 4.

It should be noted that the water level in the sewage tank 4 cannot be higher than the lowest position of the second air channel inlet 320 and the second air channel outlet 321, so as to prevent sewage from overflowing from the second air channel inlet 320 and the second air channel outlet 321, and a safe distance should be left between the water level line in the sewage tank 4 and the second air channel outlet 321, so that the sewage is prevented from being sucked into the fan assembly 7 by air flow due to too close distance to the second air channel outlet 321. In order to maintain the lowest flow of air in the second air duct in the sewage tank 4, ensure that sewage is separated from air after entering the sewage tank 4, the highest value of the water line in the sewage tank 4 should be set, and the water level should be controlled not to exceed the highest value. Thereby, a water level detecting means can be provided on the sewage tank 4 to detect the water level, which can send a detection signal to the control unit of the self-moving cleaning robot.

The control unit can be connected with an alarm device, and when the water level detection device detects that the water level in the sewage tank 4 is close to or reaches the highest value, the control unit controls the alarm device to send out an alarm signal so as to remind a user. The alarm signal can be a warning lamp, a warning sound and the like, and the control unit can also control the fan assembly 7 to be closed so as to prevent sewage from entering the fan assembly 7 and damaging the fan assembly 7.

Of course, the control unit may also control the self-moving cleaning robot to enter the base station based on the electric signal detected by the water level detection device, and pump the sewage in the sewage tank of the self-moving cleaning robot into the base station.

The water tank may be provided on the machine body 1 at a position behind the cleaning device. Referring to fig. 16, a water tank 15 is provided above the body 1, the water tank 15 extending from a position adjacent to the cleaning device to the rear side of the body 1, and the water tank being detachably installed in the water tank 15. After the self-moving cleaning robot works for a period of time, dust or other dirt is easy to deposit in the gap between the sewage tank 4 and the machine body 1, and a user can detach the whole water tank and clean the water tank. The water tank and the water tank 15 can be engaged by a quick-release structure, including but not limited to a buckle, a slot, and other quick-release mechanisms known to those skilled in the art.

Referring to fig. 14 and 15, a battery 16 may be provided at both sides of the water tank 15 for supplying power to the body 1. Specifically, the battery mounts 160 are provided on both sides of the water tank 15, respectively, and the two batteries 16 are mounted on the battery mounts 160, respectively. The two batteries 16 may be connected in series, for example, the batteries 16 on both sides may be connected in series by a connecting wire 161, the connecting wire 161 may run through a gap between the cleaning device and the water tank, or may run at any other position on the machine body 1 meeting the wiring requirement, which is not limited herein.

In one embodiment of the present disclosure, two driving wheels 8 may also be mounted on the machine body 1 at positions on both sides of the tank 15. Specifically, driving wheel mounting seats 81 are respectively provided on the body 1 at positions on both sides of the water tank 15, the opening ends of the driving wheel mounting seats 81 face to the lower side of the body 1, and two battery mounting frames 160 may be respectively mounted at positions above the two driving wheel mounting seats. The two driving wheels 8 are respectively installed in the driving wheel installation seats 81 of each place, so that the machine body 1 is supported by the two driving wheels 8 and the machine body 1 is driven to walk. Wherein, drive motor 80 is also provided in drive wheel mount 81, drive motor 80 is connected with corresponding drive wheel 8 transmission, drives drive wheel 8 rotation. Of course, the drive motor 80 and the drive wheel 8 may also be integrally mounted in a modular fashion within the drive wheel mount 81.

The sewage tank 4 and the clean water tank 5 of the present disclosure may be integrally formed, or may be formed by splicing multiple parts. In one embodiment, the sewage tank 4 is provided in a split structure, as shown in fig. 16, and includes an upper casing 401, a middle casing 402, and a lower casing 403 that are sequentially fastened together. Wherein, the upper shell 401 forms the top surface of the sewage tank 4, the lower shell 403 forms the bottom surface of the sewage tank 4, the middle shell 402 is provided with an annular structure or a U-shaped hollow structure, and forms part of the side wall of the sewage tank 4, the connection modes of the three include but are not limited to bonding, welding, screw fixing and the like, and the connection parts are all provided with sealing structures to prevent sewage leakage. The edge of the upper housing 401 extends downward, is connected to the middle housing 402, and the second duct inlet 320 is opened at the front side of the upper housing 401.

In one embodiment, the sewage tank 4 may be disposed around the fan assembly 7, and the rear end region of the second air duct 32 is uniformly disposed around the air inlet of the fan assembly 7, so that the air inlet of the fan assembly 7 can uniformly intake air from the circumferential direction, and the situation that local air flow is too high in speed is avoided, so that the air flow speed in the sewage tank 4 is too high to sufficiently separate water and air.

Specifically, the lower case 403 may be provided with a fan housing chamber 41, and an opening end of the fan housing chamber 41 faces a bottom of the lower case 403. The fan housing chamber 41 penetrates through the hollow structure of the middle housing 402 and extends toward the upper housing 401, and the second air duct outlet 321 is provided at the top of the fan housing chamber 41 to communicate with the fan housing chamber 41. A gap is left between the top of the fan housing chamber 41 and the upper case 401, and the second air duct outlet 321 is the inlet of the third air duct 33. The fan assembly 7 is installed in the fan housing chamber 41, and the bottom of the fan housing chamber 41 is opened so that the fan assembly 7 can be installed from the bottom of the fan housing chamber 41. In operation, the fan assembly 7 is operable to draw air from the air duct system and discharge it downwardly from the bottom end of the fan housing chamber 41. The fan housing chamber 41 and the lower housing 403 may be integrally formed, for example, by injection molding; and may also be fixedly connected by welding, bonding, hot melting, etc., which is not limited by the present disclosure.

Referring to fig. 16, the fan housing chamber 41 is located at a side of the sewage tank 4 remote from the second air duct inlet 320, and an annular sidewall of the fan housing chamber 41 encloses a second passage 322 with a corresponding sidewall of the sewage tank 4, the second passage 322 being a part of the second air duct 32. The area from the second air duct inlet 320 to the fan housing chamber 41 in the interior of the sewage tank 4 is the first channel 323 of the second air duct 32.

In one embodiment of the present disclosure, the second channel 322 may be an annular channel surrounding the circumferential direction of the fan housing chamber 41, or may be a circular arc shape surrounding a portion of the sidewall of the fan housing chamber 41. The shape of the second passage 322 and the extending direction are related to the shape of the fan housing chamber 41. For example, when the circumferential side wall of the fan housing chamber 41 is rectangular, then the second channel 322 is encircling or partially encircling along the rectangular side wall. Referring to fig. 25, the second passage 322 is provided with two sections, which are respectively located at opposite sides of the fan housing chamber 41, and respectively communicate with the first passage 323.

In operation, air flow carries liquid from the second air duct inlet 320 first into the first passage 323 of the second air duct. When flowing in the first passage 323, since the flow velocity of the air flow is low, the liquid falls to the bottom of the sewage tank 4 for storage by the gravity of the liquid itself. The air flows through the first passage 323 into the second passage 322, flows upward uniformly through the second passage 322, and finally flows out of the second air duct outlet 321 at the top of the fan housing chamber 41. In addition, in the rising process of the air flow in the second channel 322, the liquid carrying capacity of the air flow is reduced, and the liquid falls into the bottom of the sewage tank 4 for storage under the action of self gravity, so that the effect of gas-liquid separation is further improved.

The second channel 322 is arranged to enable the airflow to uniformly flow to the second air channel outlet 321 from the circumferential direction, so that the problem that the airflow carries part of the liquid to flow from the second air channel outlet 321, such as the fan assembly 7, due to the excessively high local airflow speed can be avoided. The second passage 322 is surrounded by a part of the side wall of the lower housing 403, a part of the side wall of the middle housing 402, a part of the side wall of the upper housing 401, and a side wall of the blower housing chamber 41.

In one embodiment of the present disclosure, a tank assembly is provided, which includes the fresh water tank 5, the dirty water tank 4, and the blower housing chamber 41 described above.

The fan housing chamber 41 is used for mounting the fan assembly 7, the opening of the fan housing chamber 41 faces the bottom of the water tank assembly, and the fan assembly can be loaded into the fan housing chamber 41 from the opening. The sewage tank 5 has an air duct inlet, and the top of the fan accommodating chamber 41 is provided with an air duct outlet communicating with the sewage tank 4, specifically, the air duct inlet may be the second air duct inlet 320, and the air duct outlet may be the second air duct outlet 321. A second channel 322 is provided between the fresh water tank 4 and the fan housing chamber 41 so that air flow from the inlet of the air channel into the sewage tank can be discharged from the outlet of the air channel through the second channel 322.

In one embodiment of the present disclosure, in order to improve the capability of gas-liquid separation of the second air duct 32, a wind shielding mechanism 42 is further disposed in the sewage tank 4, as shown in fig. 13 and 26, the bottom of the wind shielding mechanism 42 is lower than the top of the fan accommodating cavity 41; therefore, the moisture in the first channel 323 can be prevented from directly flowing out of the second air channel outlet 321, and after the moisture needs to bypass from the bottom of the wind shielding mechanism 42, a part of the moisture enters the second channel 322, and a part of the moisture moves upwards and enters the second air channel outlet 321 at the top of the fan accommodating cavity 41.

Specifically, the wind shielding mechanism 42 may be provided at the top inside the sewage tank 4, and may be located at any position between the second air duct inlet 320 and the fan housing chamber 41. The air flow entering from the second air duct inlet 320 is blocked by the wind shielding mechanism 42, needs to bypass the bottom of the wind shielding mechanism 42, and then flows to the second air duct outlet 321 at the top of the fan housing chamber 41. The wind shielding mechanism 42 lengthens the flow path of the air flow in the second air duct 32 and changes the flow direction of the air flow, facilitating the sufficient separation of the sewage from the air in the sewage tank 4.

Preferably, the wind shielding mechanism 42 may be disposed near the second air duct outlet 321 or adjacent to the fan housing chamber 41, and the bottom of the wind shielding mechanism 42 extends downward to below the top of the fan housing chamber 41 and above the highest value of the water line of the sewage tank 4, and a gap for air flow to pass is formed between the wind shielding mechanism 42 and the side wall of the fan housing chamber 41. After bypassing the bottom end of the wind shielding mechanism 42, the air flow in the sewage tank 4 flows upward along the gap between the wind shielding mechanism 42 and the side wall of the fan housing chamber 41, and then reaches the second air channel outlet 321. The ability of the air flow in the sewage tank 4 to carry water stain is reduced in the process of bypassing the wind shielding mechanism 42 and the water stain can be separated from the air more sufficiently.

The wind shielding mechanism 42 may be configured in a plate-like, strip-like or other structure and vertically and fixedly connected to the top of the sewage tank 4, and the connection manner of the wind shielding mechanism 42 and the sewage tank 4 includes, but is not limited to, integral molding, bonding, plugging and the like.

The clear water tank 5 and the sewage tank 4 can be independently arranged and respectively arranged on the machine body 1, and can also be arranged together, so that the integration level of the machine body 1 is improved. The clean water tank 5 and the sewage tank 4 may be integrally formed, or may be formed by splicing a plurality of parts, which is not limited in the present disclosure. The clear water tank 5 may be provided at one side of the sewage tank 4 or may be provided around the sewage tank 4 in a partially surrounding manner, and the above-described location of the clear water tank is only an example, which is not limited in the present disclosure.

In one embodiment of the disclosure, as shown in fig. 16 and 17, a groove that is semi-open toward the upper housing 401 is provided at an edge position of the middle housing 402 of the sewage tank 4, a corresponding groove is also provided at the bottom of the upper housing 401, and the groove at the bottom of the upper housing 401 and the groove of the middle housing 402 are buckled together to form a closed clean water tank 5. The fresh water tank 5 may be configured in a ring-shaped structure based on the shape of the middle housing 402, for example, disposed around an edge position of the sewage tank. Of course, the clear water tank 5 can also be encircled in a C shape or a U shape. For example, in the embodiment of fig. 13 and 16, since the second air duct inlet 320 is required to be disposed at the front end of the upper housing 401, the fresh water tank 5 is disposed around three side walls of the sewage tank, and is approximately U-shaped or C-shaped.

Referring to fig. 16 and 17, the middle portion of the middle housing 402 is hollowed out, and a first sidewall 4020 located on the outer side and a second sidewall 4021 located on the inner side are disposed at the edge positions of the middle housing. The first sidewall 4020 and the second sidewall 4021 are disposed in parallel and spaced apart, and enclose a groove with an open end with the bottom of the middle housing 402. Based on a similar structure, the edge position of the upper case 401 is provided with a third sidewall 4010 located on the outside and a fourth sidewall 4011 located on the inside, and the third sidewall 4010 and the fourth sidewall 4011 enclose a groove with one end opened with the top of the upper case 401. When assembled, the third sidewall 4010 of the upper housing 401 is abutted with the first sidewall 4020 of the middle housing 402, and the fourth sidewall 4011 of the upper housing 401 is abutted with the second sidewall 4021 of the middle housing 402, so that the groove of the upper housing 401 and the groove of the middle housing 402 together enclose the sealed clean water tank 5.

The clear water tank 5 can be of a ring-shaped structure or of a C-shaped or U-shaped structure. For example, in the structures of fig. 16 and 17, the middle and

upper cases

402 and 401 are rectangular, and the clean water tank 5 extends to three side walls of the middle and

upper cases

402 and 401, because the second air duct inlet 320 is provided on the front side wall of the upper case 401.

The clean water tank 5 is connected with a delivery pipe, on which a water pump 54 is installed, and at the end of which a nozzle 91 of the auxiliary cleaning assembly 9 is installed, the delivery pipe is capable of pumping water or cleaning liquid in the clean water tank 5 through the water pump 54 and delivering the same to the nozzle 91, and then spraying the cleaning liquid or clean water to the cleaning device through the nozzle 91.

In a specific embodiment, as shown in fig. 14 and 18, a clean water supply port 501 may be provided on the clean water tank 5, a clean water opposite port 102 that is in butt joint with the clean water supply port 501 is provided on the machine body 1, and when the water tank is assembled on the machine body 1, the clean water opposite port 102 on the machine body 1 and the clean water supply port 501 on the water tank are in butt joint together to communicate with the clean water tank 5.

The clean water opposite port 102 is connected to the delivery pipe 53 to deliver the water or cleaning liquid in the clean water tank to the position of the shower head 91 through the delivery pipe 53. A clear water tank communication valve 531 communicating with the clear water supply port 501 may be provided in the clear water tank 5, and the clear water tank communication valve 531 has an elastic valve stem 532 for opening and closing the clear water tank communication valve 531, the elastic valve stem 532 closing the clear water tank communication valve 531 when no external force is applied. Be provided with on the organism 1 with elastic valve rod 532 complex opening structure, when the fresh water tank 5 was installed to the organism 1, pipeline 53 was connected with fresh water tank communication valve 531, and opening structure can jack up elastic valve rod 532 to open fresh water tank communication valve 531. When the clean water tank 5 is detached from the machine body 1, the conveying pipeline 53 is disconnected from the clean water tank communication valve 531, the elastic valve rod 532 is reset, the clean water tank communication valve 531 is closed, and leakage of cleaning liquid in the clean water tank 5 is prevented.

As shown in fig. 18, a fresh water suction pipe 530 may be provided in the fresh water tank 5, one end of the fresh water suction pipe 530 is connected to the fresh water tank communication valve 531, and the other end extends to the bottom of the fresh water tank 5. The clean water suction pipe 530 and the delivery pipe 53 can be communicated through the clean water tank communication valve 531 to suck the cleaning liquid at the bottom of the clean water tank 5. The fresh water suction pipe 530 may be provided as a straight pipe or a curved pipe as required by the position of the fresh water tank communication valve 531 or other structural arrangement.

A water-free detection sensor 103 may be further provided on the body 1, and the sewage detection sensor 103 may be used to detect whether water passes through the conveying pipe 53 to detect abnormality. When an abnormality occurs, the anhydrous detection sensor 103 can send out a detection signal to the control unit, and the control unit can send out an alarm based on the detection signal.

With continued reference to fig. 14, both the water-free detection sensor 103 and the water pump 54 on the machine body 1 may be provided at a position on the machine body 1 below the sewage tank 4. A first air duct outlet 310 is provided on the body 1 at a position between the no-water detection sensor 103 and the water pump 54, the first air duct outlet 310 being for communication with a second air duct inlet 320.

With continued reference to fig. 17, the lower housing 403 includes a bottom wall 4031 and a side wall 4030, and the side wall 4030 of the lower housing 403 is connected to the lower portion of the first side wall 4020 of the middle housing 402, such that the inner walls of the upper housing 401, the middle housing 402, and the lower housing 403 enclose the sewage tank 4. That is, the side wall 4030, the bottom wall 4031, the bottom and second side walls 4021 of the middle housing 402, and the fourth side wall 4011 and top of the upper housing 401 together define the sewage tank 4.

The fan housing chamber 41 and the lower housing 403 may be integrally formed, and the fan housing chamber 41 may extend from the bottom wall 4031 of the lower housing 403 toward the upper housing 401 to form the fan housing chamber 41 with an opening at the lower end. The fan receiving cavity 41 can also be seen as an upwardly extending projection formed on the bottom wall 4031 of the lower housing 403. In this structure, the sewage tank 4 is surrounded by the inner wall (including the side wall 4030, the bottom wall 4031) of the lower housing 403, the surrounding side wall 410 and the top wall 411 of the blower housing chamber 41, the second side wall 4020 of the middle housing 402, and the fourth side wall 4011 of the upper housing 401 and the top thereof. The enclosing side wall 410 of the fan accommodating cavity 41 is parallel to and spaced from the second side wall 4021 of the middle housing 402 and the fourth side wall 4011 of the upper housing 401, and encloses the second channel 322 of the second air duct 32.

Since the blower housing chamber 41 is provided at a side of the sewage tank 4 remote from the second air duct inlet 320, a region between the second air duct inlet 320 and the blower housing chamber 41 in the sewage tank 4 is the second placed first passage 323. That is, the second duct as a whole may be divided into two parts, a first passage 323 adjacent to the second duct inlet 320, and a second passage 322 adjacent to the second duct outlet 321. This causes the air flow entering the first passage 323 through the second duct inlet 320 to eventually pass through the second passage 322 around the fan housing chamber 41 and eventually out the second duct outlet 321 at the top of the fan housing chamber 41.

In another embodiment of the present disclosure, the sewage tank 4 and the clean water tank 5 may also be of a unitary structure. I.e. the tank 4 and the fresh water tank 5 can be regarded as one integral tank. The first sidewall 4020, the third sidewall 4010, and the sidewall 4030 are integrally sidewalls of the water tank, the bottom wall 4031 of the lower housing 401 is a bottom wall of the water tank, and the top wall of the upper housing 401 is a top wall of the water tank. The top wall, the side wall and the bottom wall of the water tank enclose an inner cavity structure of the water tank.

The fourth side wall 4011 of the upper case 401, the second side wall 4021 of the middle case 402, and the bottom wall are formed integrally as a partition portion between the clean water tank 5 and the sewage tank 4, and the partition portion divides an inner cavity of the water tank into the clean water tank 5 and the sewage tank 4.

In one embodiment of the present disclosure, the partition, a portion of the side walls and a portion of the top wall of the tank enclose a clean water tank 5, and the remainder of the tank cavity is a sewage tank 4. Of course, the partition, part of the side wall and part of the bottom wall 4031 of the tank enclose the clean water tank 5, and the rest of the tank cavity is the sewage tank 4.

Wherein, the bottom wall 4031 of the water tank is provided with an upward bulge away from the second air duct inlet 320 to form a fan accommodating cavity 41 with an opening at the lower end, a gap is arranged between the top wall 411 of the fan accommodating cavity 41 and the top of the water tank, and the second air duct outlet 321 is arranged on the top wall 411 of the fan accommodating cavity 41. The enclosing side wall 410 of the fan accommodating cavity 41 limits the shape of the sewage tank 4, the second channel 322 is enclosed between the enclosing side wall 410 and the partition, and the position from the side of the second air channel inlet 320 to the fan accommodating cavity 41 in the sewage tank 4 is the first channel 323 of the second air channel 32.

As shown in fig. 16 and 17, the sewage tank 4 is provided with a drain port 43, and sewage in the sewage tank 4 can be discharged through the drain port 43. The clean water tank 5 is provided with a water inlet 51, and water or cleaning liquid can be supplied to the clean water tank 5 through the water inlet 51. The drain port 43 and the water inlet port 51 may be both provided on the upper housing 401. When the robot returns to the base station, the drain port 43 and the water inlet port 51 can be connected with a drain pipe and a water injection pipe correspondingly arranged on the base station, cleaning liquid can be supplied to the clean water tank 5 through the base station, and sewage in the sewage tank 4 can be pumped out.

A sewage suction pipe 430 can be arranged in the sewage tank 4, the upper end of the sewage suction pipe 430 corresponds to the water outlet 43, and the lower end extends to the bottom of the sewage tank, so that sewage at the bottom of the sewage tank can be sucked. After the mobile robot returns to the base station, the drain pipe of the base station extends from the drain port 43 to be butted with the sewage suction pipe 430, and sewage in the sewage tank 4 is extracted. The sewage suction pipe 430 may be provided as a straight pipe or a bent pipe as required by the position of the drain port 43 or other structural arrangement. An abutment 4301 may be provided at the upper end of the sewage suction pipe 430, the abutment 4301 being used for connecting a sewage drain pipe. The butt joint 4301 may be made of a material having a certain elasticity, such as rubber, plastic, etc., and two ends of the butt joint 4301 can be respectively connected with the sewage suction pipe 430 and the sewage discharge pipe in a sealing manner, so as to ensure the drainage efficiency.

In one embodiment of the present disclosure, as shown in fig. 18, a first movable valve body 431 may be disposed in the drain port 43 of the sewage tank 4, and when the sewage pipe is extended from the drain port 43 to be butted with the sewage suction pipe 430, the first movable valve body 431 may be pushed to be opened to conduct a passage between the sewage pipe and the sewage tank 4. When the sewage drain pipe is separated from the sewage tank, the first movable valve body 431 automatically resets to close the sewage suction pipe, so that the sewage is prevented from leaking when shaking. The structure of the first movable valve body 431 may be selected from structures known to those skilled in the art, and will not be described in detail herein.

Correspondingly, the position of the water inlet 51 of the clean water tank 5 may also be provided with a corresponding structure for interfacing with a base station water injection pipe, such as a second movable valve body 511. When the water injection pipe is in butt joint with the second movable valve body 511, the second movable valve body 511 can be pushed to be opened so as to conduct a passage between the water injection pipe and the clean water tank 5, and water can be supplemented to the clean water tank 5 through the base station. When the water injection pipe is separated, the second movable valve body 511 is reset to close the water inlet 51 of the clean water tank 5, so as to avoid leakage of water or cleaning solution in the clean water tank 5. The second movable valve body 511 may have the same structure as the first movable valve body 431 or may have other structures known to those skilled in the art, which will not be described in detail herein.

The cleaning liquid in the clean water tank 5 can also be used for radiating heat from the heating element on the machine body 1. The heating element at least comprises a chip of the control unit, the chip is provided with a heating resistor, a diode and other elements, and when the temperature of the heating element is too high, the working efficiency of the chip can be influenced. Specifically, as shown in fig. 14, the clean water tank 5 may be connected to the heat dissipation module 52 through a pipe, and a cleaning liquid with a low temperature may be supplied to the heat dissipation module 52, and the heat dissipation module 52 and the heating element are disposed together to water-cool the heating element. The heat dissipation module 52 may be a heat exchanger that is in sufficient contact with the surface of the heat generating element to remove heat from the heat generating element. The cleaning solution passing through the heat dissipation module 52 can reduce the temperature of the chip, and a separate heat dissipation device is not required to be arranged for heat dissipation, so that the integration level of the machine body 1 is improved. The heating element may be provided near the clean water tank 5 or the cleaning device to reduce the length of the water pipe. In addition, the cleaning liquid is heated after passing through the heat dissipation module 52, so that the dissolution of stains on the working surface can be accelerated when the cleaning liquid is conveyed to the cleaning device, and the cleaning efficiency is improved.

In one embodiment, the pipeline connected with the heat dissipation module 52 may be a conveying pipeline 53 for supplying cleaning liquid to the cleaning device by the clean water tank 5, and the water pump 54 supplies the cleaning liquid to the cleaning device and the heating unit through the conveying pipeline 53, so that the cost can be saved, and the integration level of the machine body 1 can be improved.

In another embodiment, the heat dissipation module 52 may be connected to the clean water tank 5 through a circulation pipe, and a water pump is also disposed on the circulation pipe, and pumps the cleaning solution in the clean water tank 5 to the heat dissipation module 52 through the circulation pipe, water-cools the heating element, and then returns to the clean water tank 5 through the circulation pipe. In this embodiment, the heat radiation module 52 of the circulation duct and the shower head 91 of the delivery duct 53 can operate relatively independently, without interfering with each other.

A dust collecting device 6 may be provided in the sump 4, the dust collecting device 6 being configured to filter particles in the moisture entering the second air duct 32. As shown in fig. 19, the sewage tank 4 is provided therein with a housing chamber for mounting the dust collecting device 6, and a cover plate 44 fitted at an opening position of the housing chamber, and the dust collecting device 6 can be removed by opening the cover plate 44 so as to clean the dust collecting device 6. The dust collecting device can be a dust collecting box, a filter net bag or other devices capable of achieving the filtering effect.

The dust collecting device 6 is provided with an inlet and an outlet, and is also provided with a filter screen structure for filtering solid dirt, the inlet of the dust collecting device 6 is communicated with the second air duct inlet 320, the outlet is communicated with the interior of the sewage tank 4, air flow carries liquid to enter the dust collecting device 6 through the second air duct inlet 320 at first, the solid dirt in the air flow is intercepted in the dust collecting device 6 by the filter screen structure, and the air and the sewage can enter the sewage tank 4 through the filter screen 62 structure. The dust collection device 6 may be provided in any shape and structure as long as the function of filtering solid dirt can be achieved.

In one embodiment, the dust collecting device 6 is mounted on the top of the sewage tank 4 and is close to the second air channel inlet 320, the dust collecting device 6 comprises a fixed support 61 and a filter screen 62 mounted on the fixed support 61, the fixed support 61 is detachably connected in the sewage tank 4, the inlet of the dust collecting device 6 is arranged on the fixed support 61, and the filter screen 62 is used as an outlet of the dust collecting device 6.

The dust collecting device 6 needs to be frequently disassembled and assembled for cleaning, and in order to prevent a user from forgetting to install the dust collecting device 6, a fool-proof mechanism 45 can be arranged in the accommodating cavity of the sewage tank 4. As shown in fig. 19, 20, and 21, the fool-proof mechanism 45 has a first position and a second position; after the dust collecting device 6 is disassembled, the fool-proof mechanism 45 moves to a first position higher than the mounting surface of the cover plate 44 to obstruct the mounting of the cover plate 44; when the dust collecting device 6 is installed, the dust collecting device 6 pushes the fool-proof mechanism 45 to rotate to a second position lower than the installation surface of the cover plate 44, and the cover plate 44 can be installed.

Specifically, the fool-proof mechanism 45 includes a cam 451 rotatably connected to the sewage tank 4, and a torsion spring 452 that pre-presses the cam 451 in a first position. Torsion spring 452 may be mounted on the axle of cam 451 by a bracket. The cam 451 has a projection 4511 projecting from its base circle, and in the first position, the projection 4511 is higher than the mounting surface of the cover 44. The end of the projection 4511 may be provided with a flat or arcuate surface, and the cover 44 may not be mounted to rotate the cam 451.

The fool-proof mechanism 45 further includes a pressure receiving portion 453 connected to the cam 451, and the pressure receiving portion 453 is eccentrically disposed with respect to the wheel shaft of the cam 451. The dust collection device 6 is provided with a pressing portion 63 corresponding to the pressure receiving portion 453; the pressing portion 63 is configured to cooperate with the pressing portion 453 to rotate the cam 451 from the first position to the second position. The pressing portion 63 may be provided at the bottom of the fixing bracket 61.

The dust collecting device 6 is fitted into the accommodating chamber in the vertical direction at the time of installation, and the pressing portion 63 can press down the pressed portion 453 of the fool-proof mechanism 45, thereby driving the cam 451 to rotate from the first position to the second position, and the protruding portion 4511 of the cam 451 avoids the installation surface of the cover 44. After the dust collecting device 6 is detached, the cam 451 is reset to the first position under the driving of the torsion spring 452, and the protruding portion 4511 rotates to the mounting position of the cover plate 44, so that the cover plate 44 cannot be mounted, and the user is prevented from neglecting to mount the dust collecting device 6.

In a specific embodiment, the pressing portion 63 of the fixing bracket 61 may be configured as a rib extending downward, and the pressing portion 453 of the fool-proof mechanism 45 may be disposed obliquely, and in the first position, one end of the pressing portion 453, which is close to the fixing bracket 61, is tilted upward, so that the rotation angle of the cam 451 can be increased. The protrusion 4511 of the cam 451 may be provided in a circular arc structure so as not to damage the cap plate 44. In addition, a groove body for avoiding the cam 451 should be left on the fixing bracket 61 at the side of the pressing portion 63 so as not to interfere with the cam 451 when the fixing bracket 61 is installed in the sewage tank 4.

The fool-proof mechanism 45 may be provided with two, and is disposed on opposite sides of the dust collecting device 6, the two sides of the fixing support 61 are respectively provided with a pressing portion 63, when the dust collecting device 6 is installed, the pressing portions 63 on the two sides of the fixing support 61 simultaneously press the corresponding pressed portions 453 of the fool-proof mechanism 45 on the two sides, and the protruding portion 4511 of the driving cam 451 avoids the installation position of the cover plate 44.

After the sewage tank 4 is disassembled, in order to prevent sewage from overflowing, gates can be installed at the inlets 320 and the outlets 321 of the second air channel, and the gates can close the inlets and the outlets of the second air channel after the sewage tank 4 is disassembled, so that leakage of the inlets and the outlets of the second air channel is avoided.

As shown in fig. 13, a first gate 46 is disposed at the second air channel inlet 320, one end of the first gate 46 is elastically connected to the sewage tank 4, and the other end is a free end, and the first gate 46 is preloaded at the position of the second air channel inlet 320 to close the second air channel inlet 320.

The first gate 46 may be made of a material with elasticity, such as rubber, metal sheet, etc., and the second air channel inlet 320 may be closed by the elasticity of the first gate 46, or may be connected with the sewage tank 4 by installing a torsion spring or a spring sheet, etc., and the first gate 46 may be closed by the elasticity of the torsion spring or the spring sheet, and the first gate 46 may open the second air channel inlet 320 under the action of an external force. The second duct inlet 320 faces downward, corresponding to the end of the first duct 31 that is disposed upward. The first gate 46 is disposed inside the second air duct inlet 320 and may be disposed laterally or obliquely, and its free end can be rotated toward the inside of the sewage tank 4 to open the inlet.

The body 1 is provided with a jack-up portion 17, and as shown in fig. 16, the jack-up portion 17 is configured to: when the sewage tank 4 is installed in the machine body 1, the first gate 46 is jacked up to open the second air duct inlet 320, and the first air duct 31 and the second air duct 32 are communicated. Specifically, the jack-up part 17 may be disposed in the end of the first air duct 31, and when the sewage tank 4 is installed in the machine body 1, the jack-up part 17 can push the first gate 46 upwards against the elastic force of the first gate 46; when the sewage tank 4 is disassembled, the first gate 46 is separated from the jacking portion 17, and the second air duct inlet 320 is closed under the action of elastic force, so that sewage is prevented from leaking out.

The jacking portion 17 may be configured as a vertical plate, a column, etc., and its connection manner with the machine body 1 includes, but is not limited to, integral molding, adhesion, screw fixation, etc. The jacking portions 17 may be provided in at least two, at least two jacking portions 17 may be provided at intervals, and the top ends may be equal in height, so that the first shutter 46 may be jacked at the same time. The end of the jacking portion 17 for jacking up the first shutter 46 may be provided in an arc-shaped structure so as not to excessively concentrate the pressure of the first shutter 46.

In order to improve the sealing effect, a first sealing soft glue 460 may be disposed around the connection between the second air duct inlet 320 and the first air duct 31, as shown in fig. 23, the first sealing soft glue 460 may be disposed at the edge of the second air duct inlet 320 or disposed at the edge of the outlet of the first air duct 31, and the connection manner may be fixed connection such as bonding, clamping, etc. The first sealing soft rubber 460 has certain elasticity, and can seal the connection gap between the second air duct inlet 320 and the first air duct 31, so that the wind loss is reduced.

In one embodiment, a ring of groove is formed on the outer side of the edge of the second air channel inlet 320, the first sealing soft glue 460 is in an annular structure, one side of the first sealing soft glue is embedded in the groove, and the other side of the first sealing soft glue is provided with a flaring. After the sewage tank 4 is installed in the machine body 1, the first sealing soft rubber 460 is elastically abutted against the opening edge of the first air duct 31, so that a gap between the second air duct inlet 320 and the first air duct 31 is sealed.

The second air duct outlet 321 is provided with a second shutter 47, as shown in fig. 13, 17 and 24, the second shutter 47 being configured to close the outlet by elastic action and to open the outlet by negative pressure generated by the blower assembly 7 to communicate the second air duct 32 with the third air duct 33.

Specifically, one end of the second shutter 47 is elastically connected to the sewage tank 4 or the blower housing chamber 41, and the other end is a free end. The second shutter 47 may be made of a material having elasticity, such as rubber, metal sheet, etc., or may be made of a material having elasticity by attaching a torsion spring or a spring piece. The second air duct outlet 321 faces downwards, the second gate 47 is arranged on the outer side of the second air duct outlet 321, and negative pressure generated during operation of the fan assembly 7 can overcome the elastic force of the second gate 47, so that the second gate 47 moves downwards to open the second air duct outlet 321. After the fan assembly 7 is closed, the second gate 47 closes the second air duct outlet 321 under the action of elastic force, so that sewage is prevented from leaking from the second air duct outlet 321. The second air duct outlet 321 is disposed at the top of the blower housing chamber 41, and the blower housing chamber 41 has a relatively thin top structure, and the second air duct outlet 321 may be disposed to protrude upward, thereby providing a sufficient moving space for the second shutter 47 when the second shutter 47 is opened. Alternatively, the top wall of the fan housing chamber 41 may be inclined, so that the second shutter 47 may be also inclined at a position located at the second air duct outlet 321 in the fan housing chamber 41.

In order to improve the sealing effect, the connection between the second air duct outlet 321 and the air inlet of the fan assembly 7 may be surrounded by a second sealing soft glue 470, where the second sealing soft glue 470 may be disposed at the edge of the second air duct outlet, for example, in the fan accommodating cavity 41 at the position of the second air duct outlet, and may also be disposed on the fan assembly 7. The second sealing soft rubber 470 has certain elasticity, and can seal the gap between the second air duct outlet 321 and the air inlet of the fan assembly 7, so that the wind loss is reduced.

Water tank baffle structure

The water tank provided by the disclosure not only can be used for storing liquid, but also can be used for storing sewage. Of course, depending on the application scenario, the tank may include only a fresh water tank, or only a dirty water tank. The water tank can be applied to cleaning equipment, such as a floor washing machine, a floor sweeping robot and the like, and is used for storing liquid such as clean water, sewage, cleaning agent and the like; but also in industrial liquid systems such as steam separators and the like. Those skilled in the art will be able to apply the tank to the appropriate equipment as required.

The water tank comprises a tank body, the tank body is provided with an inner cavity, an air channel is arranged in the inner cavity, and an air channel inlet and an air channel outlet are respectively formed at different positions of the tank body. As shown in fig. 25, the water tank includes the above-described sewage tank 4 and clean water tank 5. Wherein, the inner cavity of the tank body can be the inner cavity of the sewage tank 4, the air channel in the inner cavity can be the second air channel 32, and the air channel inlet and the air channel outlet are respectively the second air channel inlet 320 and the second air channel outlet 321.

After the water level in the sewage tank 4 rises to a certain degree, the liquid is pushed up to the outlet of the second air duct 32 under the negative pressure of the second air duct 32. In addition, when the water tank is applied to a device such as a robot for cleaning floor, if the device walks or the movement speed changes, the liquid in the sewage tank 4 can shake, and when the movement direction of the device is opposite to the air flow direction in the second air duct 32, the liquid is pushed up to the second air duct outlet 321 under the inertia effect. When the height of the liquid from the second air channel outlet 321 is too high, the liquid is easily pumped out from the second air channel outlet 321. In addition, a water level detecting means, for example, a water level detecting means for detecting the water full, is usually provided in the water tank. When the water level is pushed up, the water level detection device is also easily triggered, so that the water level detection device sends out an error water full signal.

In this regard, a water blocking portion may be provided in the sewage tank 4, and as shown in fig. 25 and 26, the water blocking portion may have a water blocking plate 48 structure. The water baffle 48 is arranged on the inner wall of the box body at a position adjacent to the second air duct outlet 321, so that the pushed water level can be blocked, and liquid is prevented from being pumped out of the water tank from the second air duct outlet 321. And, be provided with the through-hole on the breakwater 48, the air current in the second wind channel 32 can pass the through-hole and flow to second wind channel export 321, avoids breakwater 48 to influence the flow of air current. The through holes in the water deflector 48 may be provided in a plurality and evenly distributed over the water deflector 48 to reduce obstruction to the air flow.

As the water level in the sewage tank 4 increases, the space of the second air duct 32 becomes narrower. The sewage tank 4 should be provided with a preset water line, and the preset water line may be a scale line for expressing water fullness in the sewage tank 4. A safe distance is reserved between the preset water line and the second air duct outlet 321, so that the water level is prevented from being too close to the second air duct outlet 321. In one embodiment, the water deflector 48 may be provided at a predetermined water line of the sewage tank 4.

Since the second channel 322 of the second air duct 32 is relatively narrow and is close to the second air duct outlet 321, the liquid in the second channel 322 is pushed up by the negative pressure. In one embodiment, a water deflector 48 may be disposed in the second channel 322 to block liquid in the second channel 322 from being pushed up.

The water deflector 48 is horizontally disposed and may be provided in a shape corresponding to the second passage 322. The outside of the water deflector 48 is connected to the inner wall of the sewage tank 4 and the inside is connected to the enclosing side wall 410 of the fan housing chamber 41 by means of, but not limited to, welding, snap-fit connection, adhesion, integral injection molding, screw connection, etc.

In one embodiment of the present disclosure, the water deflector is configured to float on the water surface, for example, on sewage in the sewage tank 4. When the sewage level in the sewage tank 4 gradually rises, the water blocking portion also rises. The water blocking portion may be adapted to the shape of the second channel 322, and may be restricted in the second channel 322 so that it can only be raised in the height direction with an increase in sewage.

In one embodiment of the present disclosure, the water blocking portion may be made of a material capable of floating on the surface of the liquid, such as a foam material or a plastic material capable of floating in sewage.

In one embodiment of the present disclosure, the water blocking portion may be made of a flexible material, and when the sewage in the sewage tank 4 is pushed up, the water blocking portion may have a certain deformability along with the rise of the water surface, but the flexible water blocking portion may still inhibit the magnitude of the push up of the water surface, and may also play a role in preventing the push up of the water surface to a certain extent.

Water level detecting device

In some embodiments of the present disclosure, as shown in fig. 25 and 26, a water level detecting device 49 is further disposed in the sewage tank 4, and the water level detecting device 49 is used for detecting the water level in the inner cavity of the water tank. When the water level detecting means 49 detects that the water level reaches the preset water level line, the second air duct 32 may be closed or the supply of negative pressure to the second air duct 32 may be stopped, so as to prevent the liquid in the sewage tank 4 from being carried out of the second air duct outlet 321 by the air flow in the second air duct 32.

The water level detection means 49 of the present disclosure may be capacitive or other structures for detecting the water level by electrical conduction, and may be selected by those skilled in the art.

In one embodiment of the present disclosure, the water level detection device 49 includes a first detection probe 491 and a second detection probe 492, both of which are conductors. The water level detection device 49 is configured to: when the first detection probe 491 and the second detection probe 492 are turned on by fluid, they are triggered to emit detection signals.

The first and second detection probes 491, 492 may be disposed adjacent to or spaced apart from each other in the tank interior, for example, at the second air conduit inlet 320, at the second air conduit outlet 321, or in the middle of the tank interior. Due to the effect of the air flow in the second air duct 32, the liquid in the water tank has a certain fluctuation in the extending direction of the second air duct 32, and the liquid is pushed up towards the second air duct outlet 321, so that the water level at the second air duct outlet 321 is higher than the water level at the second air duct inlet 320. In order to improve accuracy of the measurement results, in a preferred embodiment, the first detection probe 491 and the second detection probe 492 may be disposed at positions near the middle in the extending direction of the second air duct 32, respectively. Further, the first detection probe 491 and the second detection probe 492 may be disposed on opposite sides of the extending direction of the second air duct 32, so that the distance between the two probes can be increased, and the accuracy of the detection result can be improved.

In one embodiment, the first and second detection probes 491, 492 may be located at a position between the water deflector 48 and the second air chute inlet 320. The bottom ends of the first and second sensing probes 491 and 492 are disposed at predetermined water line positions. In particular, the first and second detection probes 491, 492 may be attached to the top of the tank and extend downward.

In one embodiment, the side wall of the tank body is provided with a containing groove 490 deviating from the air channel, and the containing groove 490 can be arranged on the side wall of the sewage tank extending from the inlet of the second air channel to the outlet of the second air channel and is arranged adjacent to the communication area between the second channel 322 and the first channel 323. The first detection probe 491 and/or the second detection probe 492 are disposed within the receiving groove 490. The receiving groove 490 may be provided in a groove-like structure or a tubular structure and extend in a height direction of the side wall of the case, the receiving groove 490 being communicated with the second air duct 32, and liquid in the water tank being able to enter the receiving groove 490.

In one embodiment, only one receiving groove 490 is provided, and one of the first detection probe 491 and the second detection probe 492 is disposed in the receiving groove 490, or both the first detection probe 491 and the second detection probe 492 are disposed in the receiving cavity 490. In another embodiment, there are two receiving slots 490, with a first detection probe 491 disposed in one of the two receiving slots 490 and a second detection probe 492 disposed in the other.

In detail, the receiving groove 490 extends away from the second air duct toward the Y-axis direction with the extending direction of the second air duct as the X-axis direction and the direction perpendicular to the X-axis as the Y-axis direction. The receiving groove 490 may be provided in a cylindrical shape and have a C-shaped cross section. Because the accommodating groove 490 deviates from the second air duct 32, the water level in the accommodating groove 490 is less affected by the air flow and is not easily pushed up, so that the accuracy of the detection result of the first detection probe 491 and/or the second detection probe 492 inside thereof is high.

Since the triggering of the water level signal requires both probes to be in contact with the liquid, one of the probes may be disposed in the receiving groove 490. Of course, it is also possible for a person skilled in the art to arrange both probes in the receiving groove of the offset wind tunnel. For example, the left and right sides of the inner wall of the case are provided with a housing groove, and the first detection probe 491 and the second detection probe 492 are respectively provided in the respective housing grooves.

The liquid stored in the inner cavity of the water tank is sewage generated by cleaning equipment in cleaning work, and solid impurities are doped in the sewage. In some embodiments, a gap is left between at least one of the first detection probe 491 and the second detection probe 492 and a sidewall of the housing. The inner wall of the water tank is in a wet state, if solid impurities are mixed in the liquid in the water tank, the solid impurities may be clamped between the first detection probe 491 and the inner wall of the water tank, and the first detection probe 491 and the second detection probe 492 can be conducted through the wet side wall of the water tank, so that the detection result is inaccurate. In the present embodiment, a gap is left between at least one of the first detection probe 491 and the second detection probe 492 and the side wall of the casing, so that solid impurities can be prevented from being stuck between at least one detection probe and the inner wall of the tank, and the first detection probe 491 and the second detection probe 492 can be prevented from being conducted by the solid impurities.

The bottom ends of the first detection probe 491 and the second detection probe 492 may be flush with a predetermined water line, or one of them may be flush with the predetermined water line and the other one may be lower than the predetermined water line. Since the first and second detection probes 491, 492 are turned on while simultaneously contacting the liquid in the tank, the trigger positions of the first and second detection probes 491, 492 are dependent on the higher-bottom one, and the relatively higher-bottom one of the first and second detection probes 491, 492 is turned on and triggered when the liquid level reaches the lower-bottom one.

Because the liquid level in the tank is pushed up toward the outlet of the second air duct by the air flow in the air duct, when the liquid level at the position where the first and second detection probes 491, 492 are located is pushed up. In some embodiments, one of the bottom ends of the first and second detection probes 491, 492 is not higher than a preset water line, and the other bottom end is higher than the preset water line, wherein one of the bottom ends not higher than the preset water line can ensure contact with the liquid, and the other bottom end of the other probe is higher than the preset water line, thereby eliminating the problem of triggering the preset water level when the liquid is pushed up due to the water level. Only when the water level in the water tank really reaches the preset water level, the pushed water level can touch the probe under the action of air flow or during walking, so that a reminding signal of the preset water level is triggered.

The fan assembly can stop working based on the detection signal of the water level detection device of the water tank, and the sewage is prevented from entering the fan assembly when the water level of the sewage exceeds a preset water level line.

Floating and ponding-proof structure

The disclosed embodiment provides a self-moving floor cleaning robot including the body 1, the drum 20, and the wiper blade 93 of the self-moving cleaning robot described in the above embodiments. The machine body 1 has a mounting cavity in which the drum 20 is rotatably connected. The wiper blade 93 is connected to the body 1 and is configured to contact the drum 20 to wipe off the liquid on the drum 20. The liquid scraped off by the wiper blade 93 is sewage after cleaning the working surface. The specific structure of the self-moving floor cleaning robot can be referred to the self-moving cleaning robot in the above embodiment, and the same points are not described herein.

The difference between the self-moving floor washing robot of the present embodiment and the self-moving floor washing robot of the first embodiment is mainly that: the roller 20 and the wiper blade 93 are configured such that when an obstacle is encountered, a relative movement occurs between the roller 20 and the wiper blade 93 to disengage the roller 20 from the wiper blade 93.

This is because the working surface, such as a home floor, may have obstacles such as steps, thresholds, etc., and when the robot passes over the obstacles, the drum 20 is suspended or lifted, a closed space cannot be formed at the inlet of the first air duct 31, so that wind loss is large, and water stains scraped from the drum 20 by the wiper plate 93 cannot be sucked away by the first air duct 31, thereby falling on the working surface.

When encountering an obstacle, the air inlet of the first air duct 31 is insufficient, so that the roller 20 and the wiper plate 93 are separated by relative movement, and the wiper plate 93 can be prevented from scraping off the water stain from the roller 20, thereby not leaving sewage on the working surface.

In one embodiment, the roller 20 may be arranged to be movable relative to the machine body 1, the wiper blade 93 being arranged to be fixed relative to the machine body 1, the roller 20 being moved away from the wiper blade 93 upon encountering an obstacle, such as described in example 1, the roller assembly 2 being rotatably connected to the machine body 1, the roller assembly 2 being configured to move away from the wiper blade 93 when an obstacle is encountered, such that the wiper blade 93 is moved away from the roller 20 and no longer scrapes off the dirt on the roller 20. In another embodiment, the roller 20 is fixed relative to the machine body 1, and the wiper plate 93 is movable relative to the machine body 1, and when an obstacle is encountered, the wiper plate 93 moves away from the roller 20.

The movement of the drum 20 or the wiper blade 93 may be achieved by a driving mechanism, which may be provided by a person skilled in the art based on the prior art, such as a motor, a transmission shaft, a gear assembly, a link, etc., in a manner of rotation, swing, linear movement, etc., and the driving mechanism is not particularly limited in this embodiment.

In one embodiment provided in the present disclosure, as shown in fig. 8, the body 1 may be provided to include a floating portion 11-a and a fixed portion 11-B, the floating portion 11-a and the fixed portion 11-B being hinged together by a hinge shaft. The floating portion 11-a can rotate up and down about the hinge shaft with respect to the fixed portion 11-B. The mounting cavity and the roller 20 are arranged on the floating part 11-A, and the wiper plate 93 is arranged on the fixed part 11-B; the roller 20 is configured to remain in contact with the work surface under the force of gravity of itself and the float 11-a. The floating portion 11-a is configured to rotate relative to the fixed portion 11-B to move the roller 20 away from the wiper blade 93 when an obstacle is encountered.

The floating portion 11-a can be rotated in different ways in the following embodiments.

In one embodiment, the floating portion 11-a is configured to rotate relative to the fixed portion 11-B under the obstructing force of an obstacle, for example, when the obstacle is a threshold, the drum 20 is lifted upward when passing the threshold, thereby driving the floating portion 11-a to rotate upward relative to the fixed portion 11-B.

In another embodiment, a drive mechanism is provided between the floating portion 11-A and the fixed portion 11-B, the drive mechanism being configured to drive the floating portion 11-A to rotate relative to the fixed portion 11-B.

In a further embodiment, elastic means 23 are provided between the floating part 11-a and the fixed part 11-B, said floating part 11-a being configured to be preloaded against the work surface by means of the elastic means 23.

In one embodiment, the wiper blade 93 may be movably connected to the body 1, and further comprises a driving mechanism configured to drive the wiper blade 93 to move away from the roller 20. Specifically, the wiper blade 93 is movably connected to the machine body 1 through a matching structure of a gear and a rack, the wiper blade 93 is connected with the rack, the driving mechanism drives the gear to rotate, and the gear drives the rack to move, so that the wiper blade 93 is driven to move.

In this embodiment, when the machine body 1 encounters an obstacle, the rotation speed of the roller 20 can be reduced, and after the rotation speed of the roller 20 is reduced, the wiper 93 can be prevented from scraping the sewage on the roller 20, thereby preventing the sewage from remaining on the working surface.

The body 1 further comprises identification means configured to identify an obstacle in front; the driving mechanism drives the wiper blade 93 away from the drum 20 in response to a signal that the recognition device recognizes the front obstacle. The identification means may be a camera or radar or the like.

The self-moving floor-cleaning robot also comprises a control unit, wherein the control unit can receive signals sent by the identification device and can send control signals to a driving mechanism on the machine body 1 to control the driving mechanism to act.

The recognition device can send the detection signal of the obtained front obstacle to the control unit, and after receiving the detection signal, the control unit sends a control signal to the driving mechanism, and after the driving mechanism sends the control signal, the driving mechanism drives the roller 20 and the wiper blade 93 to perform relative movement so as to separate the roller 20 from the wiper blade 93.

In one embodiment, the control unit receives the detection signal of the front obstacle obtained by the recognition device and then sends a control signal to the driving mechanism; after the driving mechanism receives the control signal, the roller 20 and the wiper 93 are driven to move relatively, so that the roller 20 and the wiper 93 are separated, and the sewage is prevented from being scraped. The driving mechanism may be configured to drive the floating portion 11-a to move so as to be disengaged from the wiper blade 93, or may be configured to drive the wiper blade 93 to move so as to be disengaged from the drum 20.

In one embodiment, the control unit controls the rotation speed of the drum 20 to be reduced after receiving the detection signal of the front obstacle obtained by the recognition device. Specifically, the control unit may control the speed of the drum 20 to be reduced to 0-150 rpm, to prevent the wiper blade 93 from scraping off the contaminated water on the drum 20.

In one embodiment of the present disclosure, referring to fig. 27, there are two drop sensors 14, where the two drop sensors 14 may be disposed at the bottom of the machine body 1 and located at the front end of the drum 20, and the drop sensors 14 may be used to detect whether there is a front drop, for example, when moving to the step position, the drop sensors 14 may timely detect that there is a front drop, and then the robot should be controlled to stop or move backward to avoid the robot falling from the step.

The disclosure also provides a control method of the robot, which is the self-moving floor washing robot, and comprises an identification device and a control unit. The control method comprises the following steps:

s1000, after receiving the detection signal of the front obstacle obtained by the identification device, the control unit sends a control signal to the driving mechanism.

The machine body 1 encounters an obstacle in front of the working surface in the travelling process, wherein the obstacle can be a threshold, a step and the like, and the recognition device can acquire an obstacle detection signal and send the detection signal to the control unit; the control unit transmits a control signal to the driving mechanism based on the obstacle detection signal transmitted from the recognition device.

In step S1000, after receiving the detection signal of the front obstacle obtained by the recognition device, the control unit may control the speed of the drum to be reduced to 0-150 rpm. In the case of a slower drum speed, less or no sewage is scraped off by the wiper. At this time, the driving mechanism controlled by the control unit is a driving assembly connected with the roller.

S2000, after the driving mechanism sends a control signal, the driving mechanism drives the roller and the wiper blade to make relative movement so as to separate the roller from the wiper blade.

The driving mechanism can drive the floating part 11-A of the machine body 1 to rotate relative to the fixed part 11-B, so that the roller 20 on the floating part 11-A and the wiper plate 93 on the fixed part 11-B are separated; the drive mechanism may also directly drive the wiper blade 93 to move, causing the wiper blade 93 to move away from the roller 20.

In step S2000, the driving mechanism drives the floating part to move to be separated from the wiper blade; alternatively, the driving mechanism drives the wiper blade to move to be disengaged from the drum.

The present disclosure also provides a cleaning system including a cleaning apparatus provided with a cleaning device configured to clean a work surface, and a base station. The cleaning device can generate sewage in the cleaning process, and the cleaning device can extract the sewage after cleaning the working surface so as to prevent the sewage from remaining on the working surface. The cleaning device may be a self-moving robot or a hand-held device or the like which currently has a cleaning function, for example: a hand-held cleaning machine, the self-moving cleaning robot described in the above embodiments, or other household or commercial cleaning devices such as a wet-mopping vacuum cleaner. The cleaning apparatus further comprises a sump configured to receive the sewage after cleaning the work surface, and a sump in communication with the sump, the sump configured to extract the sewage after cleaning the work surface by the cleaning device into the sump. After the cleaning equipment draws sewage, inside can remain the water stain, is difficult to direct clearance moreover, if not in time dry, inside bacterium that can breed of cleaning equipment produces the peculiar smell.

The base station can integrate functions of charging, dust collection, water drainage, water supplementing, drying and the like, and can charge the self-moving robot, remove dirt and sewage, supplement cleaning solution, dry and the like. When the water level detecting means detects that the water level of the sewage tank 4 reaches the highest value, the body 1 can be controlled by the control unit to return to the base station, and sewage in the sewage tank 4 can be discharged into the base station.

The base station includes the basic station body, and the basic station body has the chamber that holds that is used for holding cleaning equipment, still is provided with the air-dry wind channel in the basic station body, can blow the air-dry air current to holding the intracavity. The cleaning device enters the accommodating cavity of the base station after suspending or ending the cleaning operation, and is dried by air-drying air flow. The air duct system of the cleaning device is configured to suck the air-drying air flow sent by the air-drying system, and can dry residual water stains inside the cleaning device through the air-drying air flow.

The accommodation cavity of the base station can be arranged at the top, middle or bottom of the base station body, and the like, and is adaptively arranged according to the corresponding cleaning equipment. For example, in one embodiment of the present disclosure, where the cleaning device is a hand-held cleaner, where a user is required to perform a cleaning operation, a receiving cavity may be provided at the top of the base station body to facilitate the user's removal of the hand-held cleaner from the top of the base station body. In another embodiment of the present disclosure, the cleaning apparatus is the self-moving cleaning robot described above, which is capable of walking on the floor by itself, cleaning the floor, and the accommodation chamber may be provided at the bottom of the base station body so that the self-moving robot can travel into the accommodation chamber from the floor, or walk through a slope into the accommodation chamber located at a certain height.

Fig. 29 is a schematic view of the overall structure of a cleaning system in one embodiment, and in the embodiment shown in fig. 29, a cleaning apparatus a of the cleaning system is a self-moving cleaning robot in the above embodiment, a housing chamber 1211 is provided at the bottom of a base station body 121, an opening of the housing chamber 1211 is provided at the side or front of the base station body 121, and the cleaning apparatus a can enter the housing chamber 1211 of the base station from the opening.

The bottom of the receiving chamber 1211 illustrated in fig. 29, 30 is not flush with the floor, and has a certain height from the floor, in which case a ramp may be provided at the opening of the receiving chamber 1211, which ramp extends obliquely from the opening of the receiving chamber 1211 to the floor, which enables the cleaning apparatus a to be driven into the receiving chamber 1211 along the ramp on the floor or to leave the receiving chamber 1211 along the ramp.

Fig. 30 and 31 are schematic diagrams of the base station of the cleaning system in one embodiment, and the air-drying system 122 forms an air outlet 1221 in the housing 1211 of the base station B, through which the air-drying system blows an air-drying air flow into the housing 1211. The air outlet is configured to blow an air-dried air flow toward the cleaning device of the cleaning apparatus a located in the accommodation chamber 1211 to dry the cleaning device 11; when the air duct system of the cleaning equipment A is opened, air-dried air flow blown out from the air outlet is sucked into the air duct system, so that the air duct system of the cleaning equipment A, the sewage tank and other internal components can be dried.

In detail, the direction of the air outlets should be close to and toward the cleaning device, and the number of the air outlets may be provided in plural and distributed around the cleaning device 11, improving stable drying efficiency for the cleaning device. The cleaning device may be, but is not limited to, a wipe, a cylinder, a cleaning brush, a scraper bar, etc., and other conventional cleaning devices are within the scope of the present disclosure. In the embodiment shown in fig. 30, three air outlets 1221 are provided, and the three air outlets 1221 may be arranged in the lateral direction (extending direction of the cleaning device) and at intervals, the positions corresponding to the cleaning device 11.

In one embodiment, referring to fig. 30, the bottom of the housing 1211 of the base station B is provided with a recess 1212, the recess 1212 being adapted to mate with the cleaning device 11, and after the cleaning apparatus a enters the housing 1211, at least a portion of the cleaning device 11 is able to mate into the recess 1212, thereby achieving a limit for the cleaning device 11. The air outlet 1221 may be provided on a side wall of the recess 1212, capable of blowing an air-dry air stream toward the cleaning device 11, facing the cleaning device 11. Or on the side wall in the accommodation chamber 1211, as long as it is ensured that the air outlet 1221 of the base station B can be faced to the cleaning device of the cleaning device a after the cleaning device a enters the base station B.

Because the bottom of the accommodation cavity 1211 is provided with the groove 1212, when the cleaning device a enters the base station accommodation cavity 1211, the cleaning apparatus can be matched with the groove 1212 to position the cleaning device a, so as to prevent the cleaning device a from shaking or sliding out in the accommodation cavity 1211 of the base station B.

In some embodiments of the present disclosure, as shown in fig. 31, the air drying system 122 includes an air drying tunnel 1222, a base station fan 1223, and a heating device 1224. Wherein the air-drying duct 1222 is communicated with the air outlet 1221, and the base station fan 1223 is configured to form a negative pressure in the air-drying duct, and an air flow flowing toward the air outlet 1221 is formed in the air-drying duct 1222. A heating device 1224 may be disposed in the air dry air duct 1222 to provide a heat source to the air dry air duct 1222 to heat the air flow in the air dry air duct 1222. The air flow in the air drying system 1222 is configured to be heated by the heating device 1224 to form an air-dried air flow, and blown out of the air outlet 1221, and then the cleaning device is dried.

The air-drying duct 1222 may be a duct or a duct formed by a cavity formed in the base station body 121, and the air outlet 1221 and the base station fan 1223 are respectively disposed at two ends of the air-drying duct 1222. In addition, the air drying duct 1222 may be formed with a plurality of branches to form a plurality of air outlets in the receiving chamber 1211. Alternatively, the air outlet 1221 is provided with one, and the ends of the multiple-channel air-drying duct 1222 are connected to the same air outlet 1221. The above-described structural arrangements of the air drying duct 1222 and the air outlet 1221 are merely examples, and are not limiting to the present disclosure, and may be set by those skilled in the art according to actual structural arrangements or assembly needs.

The base station fan 1223 may be, but is not limited to, an axial fan, a centrifugal fan, etc., which may be fixedly installed on the base station body 121. The heating device 1224 includes, but is not limited to, heating wires, heating sheets, heat exchange tubes, etc., and the air flowing in the air duct is heated up after passing through the heating device 1224 to form an air-dried air flow for the air outlet, and the temperature of the air-dried air flow can be related to the power and the air speed of the heating device 1224. The heating device 1224 may be provided in one or more units, and will not be described in detail here.

Referring to fig. 31 and 32, the base station B may be disposed at the rear side of the base station body 121 with the opening direction of the receiving chamber 1211 as the front side, and the air drying system 122 may extend the end of the air drying duct 1222 from the rear side of the base station body 121 into the receiving chamber 1211 to communicate with the air outlet 1221 in the receiving chamber 1211, or form the air outlet 1221 in the receiving chamber 1211.

A clean water tank can be further arranged in the cleaning device A, and the clean water tank is used for storing clean water, cleaning agents and other cleaning liquids. The cleaning apparatus a is capable of supplying the cleaning liquid to the cleaning device 11 during cleaning of the work surface, and improving the cleaning efficiency of the cleaning device 11. After the cleaning device 11 wipes the floor, the cleaning liquid forms a dirty water. The air duct system of the cleaning device a is close to the cleaning device A1 and can suck sewage into the sewage tank of the cleaning device a.

In some embodiments, referring to fig. 32, a waterway assembly 123 is provided on the base station B, sewage of the sewage tank of the cleaning apparatus a may be pumped into the base station B through the waterway assembly 123, and the clean water tank of the cleaning apparatus a may be replenished with the cleaning liquid. When the cleaning device a enters the accommodation chamber 1211 of the base station B, the waterway assembly 123 of the base station B can draw out the sewage in the sewage tank through the drain outlet of the cleaning device a, and supplement the cleaning liquid to the clean water tank thereof through the water inlet of the cleaning device a.

In a specific embodiment, referring to fig. 33, a sewage tank 124 and a clear water tank 125 may be provided in the base station B, wherein the sewage tank 124 and the clear water tank 125 are connected with the waterway assembly 123. In addition, a power device is further arranged in the base station B, and the power device can be a water pump or a motor capable of providing negative pressure, so that sewage in the sewage tank can be extracted and cleaning liquid can be pumped into the clean water tank by providing negative pressure for the waterway assembly 123.

For example, in one embodiment of the present disclosure, a vacuum negative pressure port may be further provided on the sewage tank 124, and the vacuum negative pressure port may communicate the sewage tank 124 with the waterway assembly 123 through a pipe, and when the waterway assembly 123 is communicated with the sewage tank of the cleaning apparatus a, a negative pressure may be formed in the sewage tank 124 through the vacuum negative pressure port by the motor to draw sewage stored in the sewage tank of the cleaning apparatus a, so that the sewage can smoothly enter the sewage tank 124.

In order to enable the cleaning apparatus a to smoothly enter the receiving chamber 1211 of the base station B, in some embodiments, referring to fig. 29 and 30, the open end of the receiving chamber 1211 has a flaring 1213, and left and right sides of the open end of the receiving chamber 1211 are inclined outwardly, for example, an inclination angle of more than 5 ° may be set so that the cleaning apparatus a may be guided so that the cleaning apparatus a may smoothly enter the receiving chamber 1211.

In other embodiments, guide wheels 1214 may be provided on the inner walls of opposite sides of the receiving chamber 1211, the axis of rotation of the guide wheels 1214 being perpendicular to the direction of movement of the cleaning device a as it enters the receiving chamber 1211, the side walls being in rolling engagement with the guide wheels 1214 as the cleaning device a enters the receiving chamber 1211. The guide wheels 1214 are capable of guiding the cleaning device a and also reducing frictional resistance with the cleaning device a.

In addition, a positioning structure may be provided in the accommodation chamber 1211 to define the position of the cleaning apparatus a. The positioning structure may cooperate with a portion of the cleaning device a, such as a corner of the cleaning device a, a castor or drive wheel for walking of the cleaning device, etc. The positioning structure includes but is not limited to a clamping groove, a step, a bump and the like.

In one embodiment, as shown in fig. 30, the positioning structure is a positioning groove 1215, and the positioning groove 1215 may be provided with two positioning grooves, which correspond to the number of driving wheels of the cleaning apparatus a, respectively. The positioning groove 1215 may be formed at the bottom of the receiving chamber 1211, and when the cleaning apparatus a enters the receiving chamber 1211, the driving wheel at the bottom thereof may be engaged into the positioning groove 1215 to position the cleaning apparatus a so that the waterway assembly 123 may be precisely aligned with the water outlet and the water inlet of the cleaning apparatus a.

The overall shape of the cleaning device a may be provided in a circle, a rectangle, a triangle, etc., which is not limited in this disclosure. The cleaning device a may be advanced or retracted when entering the accommodation chamber 1211.

In a specific embodiment of the present disclosure, referring to fig. 29, the cleaning apparatus a has a D-shape overall, including a rectangular structure at a front end and a curved structure at a rear end thereof, with reference to a forward direction of the cleaning apparatus a. The cleaning device a enters the accommodation chamber 1211 of the base station B in a forward manner, i.e., the rectangular structure of its front end first enters the accommodation chamber, unlike the conventional backward manner in which its curved surface first enters the accommodation chamber. The flared structure provided in the present disclosure and the guide wheels 1214 provided on the side walls both facilitate the cleaning device a to advance its rectangular structure into the receiving cavity first.

In general, a striking plate sensor structure is provided at the front end of the self-moving cleaning robot, and the striking plate sensor is triggered after the self-moving cleaning robot strikes an obstacle, thereby controlling the self-moving cleaning robot to retreat to avoid the obstacle in front. After the self-moving cleaning robot is inbound in an advanced manner, the signal of the striker sensor needs to be turned off or shielded.

For example, in one embodiment of the present disclosure, the charging contacts of the self-moving cleaning robot are disposed on the strike plate structure, which requires docking with corresponding charging contacts on the base station when the self-moving cleaning robot is returned to the station for charging. At this time, the signal of the striking plate sensor should be turned off to avoid misoperation such as rollback of the self-moving cleaning robot.

As described above, when the cleaning apparatus a enters the receiving chamber of the base station B, the cleaning apparatus a can be charged, and the sewage stored in the cleaning apparatus a can be pumped out, the clean water tank can be filled with water, and the cleaning device of the cleaning apparatus a can be cleaned.

To this end, the present disclosure also provides a cleaning method implemented by the above cleaning system, referring to fig. 34 and 35, comprising the steps of:

Step S1000, cleaning equipment enters a containing cavity of the base station to clean the cleaning device.

When the cleaning equipment is completely put into the accommodating cavity of the base station, corresponding operation can be carried out according to actual needs, for example, when the cleaning equipment is seriously deficient, the cleaning equipment can be charged preferentially, and then the cleaning work is carried out.

In one embodiment of the present disclosure, before the cleaning device is cleaned, the sewage of the sewage tank of the cleaning device may be preferably pumped into the sewage bucket of the base station according to the current practical situation, and the clean water tank of the cleaning device is replenished with water through the clean water bucket of the base station.

For example, when the sewage in the sewage tank of the cleaning device is more and reaches the designed water fullness level, the sewage of the cleaning device should be pumped out through the sewage drain pipe arranged on the base station. When the water in the clean water tank of the cleaning equipment is not much, the clean water tank of the cleaning equipment should be supplemented with water through a water injection pipe arranged on the base station.

Or, before the cleaning device enters the base station for cleaning, no matter what state the cleaning device is in the clean water tank and the sewage tank, the sewage in the sewage tank is pumped first to replenish water for the clean water tank, which is beneficial to cleaning the cleaning device subsequently.

When the cleaning mode is on, water is supplied to the cleaning device of the cleaning apparatus, and the cleaning device is turned on to clean the cleaning device. Wherein water can be supplied to the cleaning device through the cleaning device's own clean water tank to clean the cleaning device. The cleaning device may be supplied with water through a cleaning water tub of the base station to clean the cleaning device. Or the two water supplies water to the cleaning device at the same time, and the cleaning device can complete the self-cleaning work in the self-rotation process.

In one embodiment of the present disclosure, the cleaning device does not turn on the main fan of the cleaning apparatus during cleaning, i.e., the air duct system of the cleaning apparatus does not operate, so that water supplied to the cleaning device may drop into the recess of the base station via the cleaning device, thereby allowing a portion of the cleaning device to be immersed in the water of the recess.

For example, when the cleaning apparatus is a self-moving cleaning robot of the present disclosure, the cleaning device may scrape water off the cleaning device by the wiper blade during rotation, and the scraped water may drop into the groove that mates with the cleaning device. When a certain amount of water is deposited in the groove, the cleaning device is immersed in the water. When the cleaning device continues to rotate, the cleaning device can be cleaned by the water in the groove.

Step S2000: the cleaning device draws the cleaned sewage into its sewage tank through its air duct system.

And after the cleaning device is cleaned, the main fan of the cleaning equipment is turned on, and the cleaned sewage is pumped into the sewage tank through the air duct system of the cleaning equipment for storage. When the cleaning equipment enters the base station, the soft rubber at the inlet end of the air duct system can form a seal with the bottom of the accommodating cavity of the base station, so that the cleaning device and the water in the groove can be sucked into the sewage tank through the air duct system.

When the cleaning device is the self-moving cleaning robot disclosed by the disclosure, water scraped by the cleaning device through the wiper blade can be directly sucked into the sewage tank through the air duct system. After the water is scraped, the cleaning device can absorb the water in the groove, the water absorbed on the cleaning device is scraped continuously through the wiper blade, and the water is sucked into the sewage tank by the air duct system, so that the cleaning device and the water in the groove can be sucked into the sewage tank completely in a reciprocating mode.

In one embodiment of the present disclosure, steps S1000 and S2000 may be repeated a plurality of times in order to repeatedly wash the cleaning device. The number of times of specific cleaning may be set according to actual requirements, for example, step S1000 and step S2000 may be performed twice.

Step S3000: the air drying system of the base station sends air drying airflow to the cleaning device; the cleaning device draws an air-drying air stream through its duct system to dry the cleaning device.

And opening an air drying system of the base station, and blowing the heated air-dried air flow to the cleaning device by the base station fan through an air drying air duct so as to dry the cleaning device. In addition, at this moment, the main fan of the cleaning device is turned on, and the air-drying air flow blown out by the air-drying air duct can be sucked through the air duct system of the main fan so as to dry the air duct system of the cleaning device.

Before or just when the base station fan works, the main fan of the cleaning equipment works under the first power, for example, the main fan can work for 1-3min under full power, so that the moisture contained in the solid garbage in the dust collecting device can be sucked out, and the further separation of the solid garbage and the moisture is realized. After this step, the main fan of the cleaning device may be operated at a second power, for example, may enter a low power mode, sucking the air-dried air flow blown out from the base station into the whole air duct, and gradually air-drying the air duct.

In one embodiment of the present disclosure, before step S3000, a step of pumping the sewage in the cleaning apparatus sewage tank to a base station sewage tank is further included. This makes it possible to air-dry the sewage tank as well, avoiding the production of bacteria and bad smell in the sewage tank.

When the cleaning device is the self-moving cleaning robot disclosed by the disclosure, the air-dried air flow sucked by the inlet of the first air channel can flow through the first air channel, the sewage tank and the third air channel so as to dry the whole air channel system.

After the cleaning and drying are completed, the cleaning equipment can be in a charging mode, and the cleaning equipment is charged through the base station.

Application scenario 1

The control system of the self-moving floor-cleaning robot starts to work after receiving a working instruction, the self-moving floor-cleaning robot walks on the ground through the driving wheel, the roller is attached to the ground to roll, dust, water stains and the like on the ground are cleaned, cleaning liquid in the clean water tank is sprayed to the upper part of the roller through the spray head, the cleaning liquid on the roller is paved uniformly through the water homogenizing strip, the cleaning effect of the roller is improved, the roller rotates to the wiper blade after wiping the ground, the water stains and dirt on the surface of the roller are scraped by the wiper blade and fall into an inlet of a first air duct, the edge of the inlet of the first air duct, the roller, the wiper blade and the ground enclose into a closed space, and a negative pressure is formed in the air duct by the fan component, so that the water stains and dirt scraped by the wiper blade are directly sucked into a sewage tank through the inlet of the first air duct, the sewage cannot fall onto the ground, and cannot be accumulated on the working surface, and the cleaning and dirt-absorbing effects are greatly improved.

The solid particles sucked in the air duct enter the sewage tank and are filtered by the dust collecting device, and are reserved in the dust collecting device. The gas and the liquid sucked by the air duct are separated in the sewage tank, wherein the liquid is reserved at the bottom of the sewage tank, the gas enters the second channel of the second air duct, uniformly flows to the outlet of the second air duct from the peripheral direction in the second channel, and the phenomenon that the liquid in the sewage tank is sucked out by the air flow due to too fast local air flow is avoided. The air flow enters the third air duct from the outlet of the second air duct, and the fan assembly blows air in the third air duct to the ground from the bottom of the machine body, so that the evaporation speed of residual water stains on the ground is increased.

Application scenario 2

The roller assembly of the self-moving robot is arranged in the installation cavity at the bottom of the machine body, wherein the roller of the roller assembly is detachably arranged on the roller bracket.

When the roller is installed, the roller is installed in the roller bracket, and then the roller is limited on the roller bracket through the roller cover plate. When the roller cover plate is installed, the sliding block is pushed to move from the first position to the second position, and the roller cover plate is assembled on the roller bracket. After the sliding block is loosened, the sliding block is restored to the first position from the second position under the action force of the elastic device, the sliding block drives the locking piece on the roller cover plate to move, so that the clamping part of the locking piece can be matched with the locking clamping groove on the roller bracket to clamp the roller cover plate and the roller bracket together, and the roller is limited between the roller bracket and the roller cover plate.

When the roller is disassembled, the sliding block is pushed to move from the first position to the second position, so that the clamping part of the locking piece is separated from the locking clamping groove of the roller bracket, and then the roller cover plate is disassembled, so that the roller on the roller bracket can be taken out.

Application scenario 3

The self-moving robot walks on the ground, the roller and the ground are in rotary friction, cleaning work is carried out, dirt and sewage on the roller can be scraped by the wiper plate, and after the self-moving robot is used for a period of time, the surface of the roller is worn. The roller assembly is rotatably connected to the machine body through the hinge shaft, so that the roller assembly keeps the roller in contact with the ground under the action of gravity, namely, the roller assembly is arranged in a floating mode and can rotate up and down relative to the machine body.

The self-moving robot is worn and torn in long-time working process, or when the surface of the roller is uneven, the roller can always be attached to the ground and roll under the action of gravity, so that gaps are avoided between the roller and the ground, sealing can be always kept between the inlet of the first air duct and the ground, wind loss in the air duct is avoided, and the first air duct cannot suck sewage scraped by the wiper blade. In addition, the roller always keeps contact with the ground, so that the cleaning effect of the roller on the ground can be improved, and the cleaning capability of the roller on the ground can be maintained even if the roller is worn.

Application scenario 4

When the sewage tank is arranged in the machine body, the outlet of the first air channel on the machine body is in butt joint with the inlet of the second air channel on the sewage tank, and the jacking part on the machine body can push the first gate at the inlet of the second air channel so as to connect the first air channel with the second air channel; the inlet of the third air channel on the machine body is in butt joint with the outlet of the second air channel on the sewage tank, after the fan assembly on the machine body is started, negative pressure is formed in the third air channel, the second gate of the second air channel can be opened under the action of the negative pressure, so that the second air channel is communicated with the third air channel, and the first air channel, the second air channel and the third air channel are mutually communicated, and air flow is formed in the air channels. After the sewage tank is detached from the machine body, the first gate and the second gate can be automatically closed, so that liquid in the sewage tank is prevented from overflowing through the inlet of the second air duct or the outlet of the second air duct.

Application scenario 5

When the dust collecting device in the sewage tank needs to be cleaned on time and disassembled, firstly, the cover plate at the top of the sewage tank is opened, then the dust collecting device in the accommodating cavity is taken out, and garbage in the dust collecting device is cleaned or a new dust collecting device is replaced. After the dust collecting device is taken out, the fool-proof mechanism in the accommodating cavity rotates from the second position to the first position under the action of the torsion spring, so that the installation position of the cover plate is occupied, and the cover plate cannot be installed at the moment. Therefore, the situation that the user forgets to install the dust collecting device and directly installs the cover plate can be avoided, solid particles in the second air channel cannot be collected, even the robot works under the condition that the cover plate is not installed, the second air channel cannot be sealed, and the dirt absorbing effect of the air channel is greatly reduced.

Only when loading into dust collecting device, dust collecting device's pressure applying part can drive the pressurized part motion of preventing slow-witted mechanism, makes the cam rotate to the second position from first position, avoids letting the installation space of apron, can install the apron in corresponding position this moment, has guaranteed the collection of solid particle thing in the wind channel, has also guaranteed the seal in second wind channel.

Application scenario 6

When the self-moving robot works, the self-moving robot walks forward on the ground, the ground is cleaned by the cleaning device, negative pressure is provided for the air duct by the fan of the self-moving robot, sewage generated after the ground is cleaned is sucked into the first air duct by air flow, and then enters the inner cavity of the water tank through the inlet of the second air duct. The sewage and the air flow are separated in the water tank, the sewage is remained in the inner cavity of the water tank, and the air flow is discharged from the outlet of the second air channel. Under the action of the air flow, the sewage has a tendency of pushing up to the outlet of the second air duct; in addition, the inlet of the second air channel is close to the front end of the water tank, the outlet of the second air channel is close to the rear end of the water tank, and under the working conditions of starting, accelerating and the like, the sewage can also generate a tendency of pushing up to the outlet of the second air channel under the inertia action, so that the sewage is easily sucked into the outlet of the second air channel by air flow; or cause the water level detection means to be false triggered.

The water baffle in the water tank can prevent sewage from being pushed up, and air flow in the second air channel can flow to the outlet of the second air channel through the through hole of the water baffle, so that the sewage around the second air channel is prevented from being sucked into the outlet of the second air channel by the air flow; meanwhile, the water level detection device can be prevented from being triggered by mistake.

Application scenario 7

The water tank is used for storing sewage generated by the cleaning equipment, the sewage carrying liquid is sucked into the inner cavity of the water tank through the inlet of the second air channel, the sewage and the air flow are separated in the water tank, the sewage is remained in the inner cavity of the water tank, and the air flow is discharged from the outlet of the second air channel. The sewage is stored in the inner cavity of the water tank, and the water level detection device arranged in the inner cavity of the water tank can detect the water level. After the sewage water level reaches the preset water level line, the first detection probe and the second detection probe of the water level detection device can be conducted through sewage, so that detection signals are generated, the fan assembly stops working based on the detection signals, and the phenomenon that the water level of the sewage is too high to be sucked into the fan assembly is prevented.

And in the first detection probe and the second detection probe, the bottom of one detection probe is higher than a preset water level line, and the other end of the detection probe is lower than or equal to the preset water level line. Therefore, only when the water level in the sewage tank reaches the preset water level line, the pushed water level can reach the detection probes with the bottom ends higher than the preset water level line under the action of the walking of the robot or the air duct, and therefore the two detection probes can send out electrical signals of full water.

Application scenario 8

In the process of cleaning the ground by the self-moving floor cleaning robot, the recognition device at the front part of the machine body detects the obstacle on the ground, and when the obstacle on the ground is detected, the recognition device sends a detection signal to the control system. The control system can control the wiper blade to leave the roller based on the control signal, and stops scraping sewage on the roller, so that water stains and dirt at the inlet of the first air duct are prevented from remaining on the ground when the roller is over the obstacle.

In another application scenario, when the ground is detected to be in disorder, the control system can control the roller to reduce the rotating speed based on the control signal so as to greatly reduce the sewage amount scraped by the wiper blade from the roller, and therefore water stains and dirt can be prevented from remaining on the ground.

Application scenario 9

After the cleaning equipment finishes the cleaning work and enters the accommodating cavity of the base station, a drain pipe and a water injection pipe on the base station are respectively in butt joint with a water outlet and a water inlet on the cleaning equipment, so that sewage in a sewage tank of the cleaning equipment is pumped to a sewage bucket of the base station for treatment, and the clean water tank of the cleaning equipment is supplemented with water through a clean water bucket of the base station.

And then the cleaning device of the cleaning equipment can be supplied with water through the clean water tank of the cleaning equipment and/or the clean water bucket of the base station, and the cleaning device is cleaned. After the cleaning is finished, the main fan of the cleaning equipment is turned on, sewage after the cleaning is pumped into the sewage tank, and the sewage in the sewage tank is pumped into the sewage bucket of the base station again for storage.

And opening a base station fan to enable an air-drying air duct of the base station to blow air-drying air flow to a cleaning device of the cleaning equipment, and sucking the blown air-drying air flow by an air duct system of the cleaning equipment, thereby drying the air duct system of the cleaning equipment and the sewage tank.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cleaning apparatus comprising a body and a water tank disposed on the body, the water tank comprising:

the box body is provided with an inner cavity;

2. The cleaning device according to claim 1, wherein a fan accommodating cavity which is opened downwards is arranged at the bottom of the box body, the fan accommodating cavity extends from the bottom of the box body to the top direction of the box body, and the air duct outlet is arranged at the top of the fan accommodating cavity; the enclosing side wall of the fan accommodating cavity and part of the side wall of the box body enclose an annular air duct in the air duct.

3. The cleaning apparatus of claim 2, wherein the water deflector has a shape that matches the shape of the annular air duct, the water deflector being disposed in the annular air duct between the fan receiving chamber and the housing.

4. A cleaning device according to claim 3, wherein the water deflector is a water deflector provided with through holes for the passage of air flow.

5. The cleaning apparatus of claim 4, wherein the water deflector is connected to a surrounding sidewall of the fan housing chamber and a sidewall corresponding to the tank.

6. The cleaning apparatus of claim 4, wherein the water deflector is disposed at a position not higher than a preset water line in the tank.

7. A cleaning device according to claim 3, wherein the water deflector is configured to float on the surface of the liquid within the tank.

8. The cleaning apparatus defined in claim 7, wherein the water deflector is formed of a flexible material.

9. The cleaning apparatus of claim 1, wherein a water level detection device is further disposed within the housing, the water level detection device comprising a first detection probe and a second detection probe and configured to: the first detection probe and the second detection probe are triggered when they are turned on by a liquid.

10. The cleaning apparatus of claim 9, wherein the first and second detection probes are spaced apart from each other on opposite sides of the direction of extension of the tunnel.

11. The cleaning apparatus defined in claim 10, wherein the air duct inlet and the air duct outlet are disposed at opposite ends of the housing, respectively, and wherein an open area of the air duct is formed in the housing from the air duct inlet to the fan receiving chamber.

12. The cleaning apparatus of claim 10, wherein a side wall of the case at a position where the open area and the annular duct communicate is provided with a receiving groove offset from an extending direction of the duct, the receiving groove extending in a height direction of the side wall of the case; the first detection probe or/and the second detection probe are arranged in the accommodating groove.

13. The cleaning apparatus of claim 9, wherein one of the first detection probe and the second detection probe has a bottom end that is not higher than a preset water line and the other bottom end that is higher than the preset water line.

14. The cleaning apparatus defined in claim 9, wherein a gap is left between at least one of the first detection probe and the second detection probe and a side wall of the housing.

15. A cleaning device according to any one of claims 1 to 14, wherein the tank is a sewer tank.

16. A water tank, comprising:

the box body is provided with an inner cavity;