CN216876228U

CN216876228U - Self-moving cleaning robot and cleaning system

Info

Publication number: CN216876228U
Application number: CN202122822600.4U
Authority: CN
Inventors: 毕金廷; 黄竹生; 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: 2022-07-05
Anticipated expiration: 2031-11-17

Abstract

The present disclosure relates to a self-moving cleaning robot and a cleaning system, the self-moving cleaning robot including a body, and, disposed on the body, a cleaning device configured to clean a work surface; a first air duct having an inlet adjacent the cleaning device and configured to draw contaminated water after the cleaning device cleans the work surface; a sewage tank configured to contain sewage after cleaning a work surface, the sewage tank having a second air duct provided therein; a fan assembly having a third air duct; the first air duct and the third air duct are respectively communicated with the second air duct; after the water vapor extracted from the first air channel enters the second air channel of the sewage tank, the liquid falls to the sewage tank, and the gas is discharged through the third air channel of the fan assembly. The self-moving cleaning robot has high cleaning efficiency and makes full use of the power of the fan assembly.

Description

Self-moving cleaning robot and cleaning system

Technical Field

The present disclosure relates to the field of robots, and more particularly to a self-moving cleaning robot; the present disclosure also relates to a cleaning system including a self-moving cleaning robot.

Background

The floor self-moving cleaning robot is one intelligent household appliance and can complete the cleaning, dust sucking, floor mopping and other tasks automatically in room with certain artificial intelligence.

However, when the existing ground self-moving cleaning robot is used for mopping the ground, the water stain recovery rate is low, partial water stain still remains on the ground after cleaning, the water stain can continuously adhere to dust to cause secondary pollution, the cleaning efficiency is reduced, and people can slip due to the water stain on the ground when walking over the ground.

SUMMERY OF THE UTILITY MODEL

It is an object of embodiments of the present disclosure to provide a self-moving cleaning robot and a cleaning system.

According to a first aspect of the present disclosure, there is provided a self-moving cleaning robot, comprising a body, and a cleaning unit disposed on the body,

a cleaning device configured to clean a work surface;

a first air duct having an inlet adjacent the cleaning device and configured to draw contaminated water after the cleaning device cleans the work surface;

a sewage tank configured to contain sewage after cleaning a work surface, the sewage tank having a second air duct provided therein;

a fan assembly having a third air duct;

the first air duct and the third air duct are respectively communicated with the second air duct; after the water vapor extracted from the first air channel enters the second air channel of the sewage tank, the liquid falls to the sewage tank, and the gas is discharged through the third air channel of the fan assembly.

In one embodiment of the present disclosure, the cleaning device is disposed near a front portion of the body, and the fan assembly is disposed near a rear portion of the body.

In one embodiment of the disclosure, the machine body is further provided with a driving wheel, and the driving wheel is arranged behind the cleaning device.

In one embodiment of the present disclosure, two universal wheels are disposed at the bottom of the machine body, and the universal wheels are disposed on the machine body at a position between the cleaning device and the driving wheels and are distributed on two opposite sides of the machine body.

In one embodiment of the present disclosure, a clean water tank is further disposed on the body, and the clean water tank is configured to provide cleaning liquid to the cleaning device.

In one embodiment of the present disclosure, a dust collecting device is disposed in the sewage tank, and the dust collecting device is configured to filter particulate matters in the water vapor entering the second air duct.

In one embodiment of the disclosure, an accommodating cavity for installing a dust collecting device and a cover plate assembled at an opening position of the accommodating cavity are arranged in the sewage tank, and a fool-proof mechanism is arranged in the accommodating cavity; the fool-proof mechanism is provided with a first position and a second position;

after the dust collecting device is disassembled, the fool-proof mechanism moves to a first position higher than the mounting surface of the cover plate;

when the dust collecting device is installed, the dust collecting device pushes the fool-proof mechanism to rotate to a second position lower than the mounting surface of the cover plate.

In one embodiment of the present disclosure, the fool-proof mechanism includes a cam rotatably coupled to the sewage tank, and a torsion spring pre-pressing the cam at a first position;

the fool-proof mechanism also comprises a pressed part connected with the cam, and the dust collecting device is provided with a pressing part corresponding to the pressed part; the pressing portion is configured to cooperate with the pressed portion to rotate the cam from the first position to the second position.

In one embodiment of the disclosure, the sewage tank is provided with a first gate pre-pressed at the inlet position of the second air duct;

a jack-up portion is provided on the machine body, the jack-up portion being configured to: and when the sewage tank is arranged in the machine body, the first gate is jacked up to open the inlet of the second air channel, and the first air channel is communicated with the second air channel.

In one embodiment of the present disclosure, the sewage tank includes an upper housing, a middle housing, and a lower housing, which are sequentially fastened together; the middle shell is of a hollow structure, the edge of the middle shell is provided with a groove, and the groove of the middle shell and the upper shell are enclosed together to form a clear water tank; the upper shell, the middle shell and the lower shell enclose the sewage tank.

In one embodiment of the present disclosure, another groove is disposed at an edge of the upper housing, and the groove of the upper housing and the groove of the middle housing are butted together to jointly enclose the clean water tank.

In one embodiment of the present disclosure, a fan accommodating cavity with an open end located at the bottom of the lower casing is provided on the lower casing, and the fan accommodating cavity penetrates through the middle casing and extends towards the upper casing; the top that the fan holds the chamber is provided with be used for with the second wind channel export of third wind channel intercommunication, the fan holds the chamber all around in the sewage case encloses the composition annular wind channel in second wind channel.

In one embodiment of the present disclosure, the lower housing, the fan accommodating chamber, the middle housing, and the upper housing enclose the sewage tank.

In one embodiment of the present disclosure, a wind shielding mechanism is provided in the sewage tank; the bottom of the wind shielding mechanism is lower than the top of the fan accommodating cavity; the water vapor entering the second channel moves upwards after bypassing the bottom of the wind shielding mechanism and enters the second air duct outlet at the top of the fan accommodating cavity.

In one embodiment of the present disclosure, the second air duct outlet is provided with a second gate, and the second gate is configured to close the second air duct outlet under the elastic action and open the second air duct outlet under the negative pressure action formed by the fan assembly to communicate the second air duct with the third air duct.

In one embodiment of the present disclosure, the cleaning device is a roller assembly attached to the body.

In one embodiment of the present disclosure, the roller assembly includes a roller bracket and a roller mounted on the roller bracket, the roller bracket is rotatably connected with the machine body through a hinge shaft; the roller support is configured to maintain the roller in contact with the work surface under the influence of its own weight.

In one embodiment of the disclosure, the roller bracket is further provided with an extended limiting buckle, and a limiting clamping groove for matching with the limiting buckle is arranged at a corresponding position on the machine body; the limiting clamping groove is used for limiting the rotation angle of the roller bracket relative to the machine body.

In one embodiment of the present disclosure, a spray head is disposed on the machine body, and the spray head is configured to spray water toward the drum.

In one embodiment of the present disclosure, a wiper plate is provided on the body, the wiper plate being configured to be in contact fit with the drum.

In one embodiment of the present disclosure, the wiper plate is disposed on the body at a position above the first air duct inlet, and the wiper plate participates in enclosing an upper area of the first air duct inlet.

In one embodiment of the disclosure, one end of the roller is provided with a pressing block, and the pressing block is pre-pressed at the end position of the roller and is in surface contact with the corresponding position of the machine body.

In one embodiment of the present disclosure, a lower region of the first air duct inlet is configured to extend toward the working surface, and encloses a sealing region with the wiper plate, the drum, and the working surface.

In one embodiment of the present disclosure, the drum and the wiper blade are configured such that, when an obstacle is encountered, a relative movement occurs between the drum and the wiper blade to disengage the drum from the wiper blade.

According to a second aspect of the disclosure, a cleaning system is provided, which comprises a self-moving cleaning robot and a base station, wherein the base station comprises a base station body with an accommodating cavity, and an air drying system is arranged in the base station body;

the base station body has a receiving cavity configured to receive the self-moving cleaning robot, and a first air duct inlet of the self-moving cleaning robot is configured to draw an airing airflow sent out by an airing system to dry the cleaning device.

The beneficial effects of this disclosure lie in, first wind channel setting can siphon away the sewage at cleaning device rear at cleaning device's rear side, and the sewage that the wind channel induced drafts can with gas separation in the second wind channel of sewage incasement to get into the third wind channel and influence the fan subassembly, the energy of fan subassembly can obtain make full use of, thereby improves work efficiency.

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

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the 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 in accordance with an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of a briquetting portion of a drum provided in accordance with an embodiment of the present disclosure;

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

fig. 5 is an exploded view of the machine body, the roller, and the roller cover plate according to an embodiment of the disclosure;

FIG. 6 is a schematic structural diagram of a detent provided in an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a drum support and a drum cover according to an embodiment of the present disclosure;

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

fig. 9 is a schematic structural view of a water supply device provided in an embodiment of the present disclosure;

fig. 10 is a schematic view of an internal structure of a water supply apparatus provided in an embodiment of the present disclosure;

fig. 11 is an exploded view of a body and drum assembly according to an embodiment of the present disclosure;

fig. 12 is a schematic view of a hinge shaft and a support seat provided in an embodiment of the present disclosure;

fig. 13 is a longitudinal sectional view of an intermediate position of a wastewater tank according to an embodiment of the present disclosure;

fig. 14 is a schematic diagram of a battery and a heat dissipation module according to an embodiment of the disclosure;

FIG. 15 is an exploded view of a battery and drive wheel provided in accordance with an embodiment of the present disclosure;

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

fig. 17 is a transverse sectional view of a wastewater tank according to an embodiment of the present disclosure;

FIG. 18 is a transverse cross-sectional view of a waste tank inlet and outlet section provided in accordance with an embodiment of the present disclosure;

fig. 19 is an exploded view of a dust collector provided in accordance with an embodiment of the present disclosure;

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

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

FIG. 22 is a schematic view of a dust collection device and fool-proof mechanism according to an embodiment of the present disclosure;

fig. 23 is an exploded view of a sump and a body according to an embodiment of the present disclosure;

fig. 24 is a plan view of a lower case of the wastewater tank according to an embodiment of the present disclosure;

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

FIG. 26 is a vertical cross-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 flowchart of a robot control method provided by an embodiment of the present disclosure;

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

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

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

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

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

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

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

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

1. a body; 11-A, a floating part; 11-B, a fixed part; 101. a mounting cavity; 102. a clean water interface; 103. a non-water sensor; 1011. a limiting clamping groove; 120. hinging a shaft; 13. a universal wheel; 14. a drop sensor; 15. a water tank; 16. a battery; 160. a battery mounting bracket; 161. a connecting wire; 17. a jack-up portion; 18. a supporting seat; 19. a rotating shaft gland; 2. a roller assembly; 20. a drum; 200. assembling a groove; 21. a drive assembly; 210. a rotating member; 22. briquetting; 221. a rotation stop section; 23. an elastic device; 24. a base assembly; 241. a roller end cover; 2410. a first screw housing; 2411. a guide bar; 242. a fixed 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 drum support; 280. a rotation stopping groove; 281. avoiding a space; 282. locking the clamping groove; 283. a limiting buckle; 284. a sidewall portion; 29. a roller cover plate; 291. a slider; 292. a locking member; 2920. a fastening part; 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 side wall; 4011. a fourth side wall; 402. a middle shell; 4020. a first side wall; 4021. a second side wall; 403. a lower housing; 4030. a side wall; 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. a butt joint; 431. a first movable valve body; 44. a cover plate; 45. a fool-proof mechanism; 451. a cam; 4511. a protrusion; 452. a torsion spring; 453. a pressure receiving portion; 46. a first gate; 460. first soft sealing glue; 47. a second gate; 470. second sealing soft glue; 48. a water baffle; 49. a water level detection device; 490. accommodating grooves; 491. a first detection probe; 492. a second detection probe; 5. a clear water tank 51 and a water inlet; 511. a second movable valve body; 52. a heat dissipation module; 53. a delivery conduit; 530. a clear water suction pipe; 531. a clear water tank communicating valve; 532. an elastic valve stem; 54. a water pump; 6. a dust collecting device; 61. fixing a bracket; 62. a filter screen; 63. a pressing part; 7. a fan assembly; 8. a drive wheel; 81. a driving wheel mounting seat; 9. an auxiliary cleaning component; 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 the edges; A. cleaning equipment; B. a base station; 121. a base station body; 1211. an accommodating chamber; 1212. a groove; 1213. a flaring structure; 1214. a guide wheel; 1215. positioning a 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. a clear water 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, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless 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 those 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 particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

The present disclosure provides a self-moving cleaning robot, including a body capable of walking on a working surface by means of a control unit, the body being provided with a cleaning device configured for cleaning the working surface. The self-moving cleaning robot may be a sweeping robot, and the cleaning work surface 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 having an inlet adjacent the cleaning device and configured to draw off the contaminated water after the cleaning device cleans the work surface, and the waste water tank is configured to contain the contaminated water after the cleaning of the work surface. A second air channel is arranged in the sewage tank, 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, liquid drops to the sewage tank after water vapor extracted from the first air channel enters the second air channel of the sewage tank, and gas is discharged through the suction air channel of the fan assembly.

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

For convenience of description, the embodiment of the present disclosure takes the traveling direction of the machine body as the front. The cleaning device is arranged close to the front of the machine body, the fan assembly is arranged close to the rear of the machine body, the first air channel is arranged behind the cleaning device, and the sewage tank is arranged between the first air channel and the fan assembly, so that the first air channel, the second air channel and the third air channel have longer paths, and the full separation of water and air in the second air channel of the sewage tank is facilitated.

The air outlet of the fan assembly faces the working face, and the cleaning device blows air to the working face so as 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 face is increased, and the energy of the fan assembly is fully utilized.

Still be provided with the clear water case on the organism, clear water case is used for storing cleaning solution such as clear water, sanitizer, and the clear water case is configured to provide cleaning device with the cleaning solution to improve cleaning device's soil-release capacity, improve self-moving cleaning machines people's work efficiency.

Fig. 1 to 27 show a specific embodiment of a self-moving cleaning robot according to the present disclosure, which includes a machine body 1, wherein a cleaning device, an air duct, a sewage tank 4, a clean water tank 5, a fan assembly 7, and the like are disposed on the machine body 1. The air duct includes a first air duct 31 disposed on the machine body 1, a second air duct 32 disposed in the sewage tank 4 and communicated with the first air duct 31, and a third air duct 33 disposed in the fan assembly 7 and communicated with the second air duct 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 travels 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 a negative pressure, so that an air flow flowing from the cleaning device to the air outlet of the fan assembly 7 is formed in the air duct, and the first air duct 31 can suck away sewage after the cleaning device cleans the working surface. The air duct can not only suck away sewage, but also suck away solid particles on the working surface. When the sewage contains the solid particles mixed therein, the first air duct 31 can suck the sewage and the solid particles at the same time.

1 bottom of organism still is provided with the drive wheel 8 that is used for the walking, and drive wheel 8 sets up at cleaning device's rear, and cleaning device can clean dirt, water stain etc. on the 8 the place ahead working faces of drive wheel to avoid dust and water stain to influence the frictional force between drive wheel 8 and the working face, thereby protect drive wheel 8, improve organism 1's motion ability.

Cleaning device

The cleaning device can comprise a cleaning cloth, a sweeping brush, a rolling brush, a roller and the like, and can wipe or clean the working surface in the walking process of the machine body 1. In one embodiment of the present disclosure, the cleaning device includes a roller 20, a mounting cavity is provided 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 the working surface. The surface of the roller 20 can be provided with a cleaning layer, the cleaning layer can be sponge, cotton cloth, fluff and the like, and the cleaning layer can wipe the working surface in the rolling process and adhere 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 various ways. In some embodiments, the drum 20 can rotate by means of friction between the machine body 1 and the working surface when walking; in other embodiments, the drum 20 may be rotated by the driving action of the driving mechanism.

In one embodiment of the present disclosure, as shown in fig. 2, a driving assembly 21 is disposed on the machine body 1, the driving assembly 21 is connected to the drum 20, and the drum 20 is driven 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 the wind loss at the inlet of the first wind tunnel 31, both end portions of the drum 20 and the corresponding positions of the body 1 are hermetically disposed.

In one embodiment of the present disclosure, the drum 20 is mounted on the machine body 1 in the form of a drum assembly 2. Referring to fig. 5 and 11, the roller assembly 2 includes a roller bracket 28 and the roller 20 mounted on the roller bracket 28, and a roller cover 29 to restrain the roller 20 on the roller 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 matches the shape of the roller assembly 2, so that the roller assembly 2 can be mounted in the mounting cavity 101 of the machine body 1, and the roller 20 can protrude out of the lower end surface of the machine body 1 for being attached to a working surface, which can be cleaned by the rotation of the roller 20.

With continued reference to fig. 5 and 11, the roller frame 28 may be in the form of a frame, a channel, or the like, the roller frame 20 may be provided with a roller cavity, the roller 20 may be rotatably connected to the roller cavity, the roller cover 29 may be in the form of a frame and may be mounted to the open end of the roller frame 28 and may confine the roller 20 within the roller cavity of the roller frame 28, and a portion of the roller 20 may extend from the roller cover 29 to contact the work surface. The drive assembly 21 may be in driving connection with a rotatable member 210 provided in the roller bracket 28, either directly or via a transmission mechanism. One end of the drum 20 is provided with a fitting groove 200 for fitting with the rotation member 210 to drive the drum 20 to rotate. The rotational member 210 may be provided with a flange and/or groove structure to mate with a corresponding flange and/or groove structure in the assembly slot 200. Alternatively, the end of the roller frame 28 for engaging with the transmission mechanism is provided with an avoiding structure, such as an avoiding groove, etc., and the rotating member 210 is rotatably connected to the machine body and connected to the transmission mechanism. When the roller bracket 28 is installed, the offset structure of the corresponding position of the roller bracket 28 can directly pass through the rotating member 210, so that the roller bracket 28 is installed in the installation cavity 101 of the machine body 1, which will not be described in detail herein.

The other end of the roller 20 can be connected in a sealing manner to the end face of the roller holder 28 by means of the pressure piece 22. Specifically, one end of the roller 20 is provided with a pressing block 22, and the pressing block 22 is pre-pressed at the corresponding end of the roller 20 by an elastic device 23. The end surface of the outer side of the pressing block 22 is abutted against the corresponding end surface of the roller cavity of the roller bracket 28, and the contact sealing is formed between the end surface of the outer side of the pressing block 22 and the end surface of the roller cavity under the action of the elastic device 23.

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

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 fixed relative to the drum 20, and an axial direction of the base assembly 24 being coincident with an axial direction of the drum 20. The rotating shaft 25 is configured to move along the axial direction of the base assembly 24, the rotating shaft 25 is connected with the pressing block 22 in a relative rotation manner, the rotating shaft 25 applies outward pressure to the pressing block 22 under the action of the elastic device 23, and the pressing block 22 is driven to be tightly attached to the inner wall of the roller cavity, so that sealing between the pressing block 22 and the roller cavity is realized. The base assembly 24 may be made of a self-lubricating material, which can reduce the friction force with the rotating shaft 25 and prolong the service life.

The base assembly 24 includes a drum end cover 243 for being supported inside the drum 20, and a fixing seat 242 fixed to the drum end cover 243, and the rotation shaft 25 passes through the fixing seat 242 and is configured to move in the axial direction of the drum 20.

Specifically, the fixing seat 242 extends axially relative to the drum 20, a guide channel is arranged inside the fixing seat 242, the rotating shaft 25 is arranged in the guide channel of the fixing seat 242 in a matching manner, and the rotating shaft 25 can move along the extending direction of the fixing seat 242 when being acted by external force, so that the stability of the rotating shaft 25 is improved.

The base assembly 24 further includes a roller end cap 241 coupled to the fixing seat 242 or the roller end cap 243, and the elastic means 23 is disposed between the rotating 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. Roller end cap 241 may be provided in a "female" configuration with resilient means 23 provided within roller end cap 241.

The roller end cap 241, the fixing seat 242 and the roller end cap 243 of the base assembly 24 may be connected in sequence from inside to outside with respect to the roller 20, and the three may be integrally formed or may be provided as a separate connection structure. The connection manner of the split connection structure includes, but is not limited to, screw connection, adhesion, insertion, and the like.

In the embodiment of the present disclosure, the roller end cap 241, the fixing seat 242, and the roller end cap 243 of the base assembly 24 adopt a split type connection structure to facilitate the installation of the elastic device 23 and the rotating 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 through the positioning structure 27, so that the positioning between the three parts can be facilitated during installation. The roller end cover 241, the fixing seat 242 and the roller end cover 243 may be further fixed by screws to improve connection stability. The roller end cover 241, the fixing seat 242 and the roller end cover 243 may be provided with screw holes or screw sleeves for screws to pass through.

In one embodiment, referring to fig. 4, the roller end cover 241 has first screw sleeves 2410 disposed on opposite sides thereof, the fixing seat 242 has second screw sleeves 2420 disposed on opposite sides thereof, and the roller end cover may have threaded holes formed therein. The threaded hole, the first screw sleeve 2410 and the second screw sleeve 2420 are coaxially arranged, and screws penetrate through the threaded hole, the first screw sleeve 2410 and the second screw sleeve 2420 to fixedly connect the roller end cover 241, the fixed seat 242 and the roller end cover 243 together.

The fixing seat 242 can be made of self-lubricating material alone, and the roller end cover 241 and the roller end cover 243 can be made of other common materials, so that the cost is saved.

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 device 23 employs a compression spring. The compression spring, 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 engaged with the compression spring 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 fittingly inserted into 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 inserted into the slot in a matching manner.

One end of the connecting elastic device 23 of the rotating shaft 25 can extend into the roller end cover 241 and is provided as a limiting end, and the limiting end can abut against the end surface of the fixing seat 242 to limit the position of the rotating shaft 25 and prevent the rotating shaft 25 from separating from the fixing seat 242. The radial dimension of the roller end cap 241 is sufficient to accommodate the enlarged end of the rotating shaft 25, and the rotating shaft 25 is axially movable into the roller end cap 241 by an external force.

The roller end cover 243 may be close to the end surface of the roller 20 and configured as a "concave" structure adapted to the pressing block 22, the roller end cover 243 is provided with a cavity for accommodating the pressing block 22, and a limiting structure is formed between the outer circumference of the pressing block 22 and the inner wall of the cavity of the roller end cover 243 to prevent the pressing block 22 from falling out of the cavity 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 penetrates through the roller end cover 243 to be connected with the pressing block 22 in a rotating mode. 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 and is matched with the corresponding position of the roller bracket 20.

The edge of the roller cover 243 is provided with a flange 2431 which is engaged with the end edge of the roller 20, so as to limit the position of the roller cover 243. A rotation stopping structure 2432 may be disposed between the outer side of the drum end cover 243 and the inner side of the drum 20, and the rotation stopping structure 2432 includes a groove and a protrusion which are matched with each other, one of the groove and the protrusion is disposed on the outer side of the drum end cover 243, and the other is disposed on the inner side of the drum 20, so as to prevent the drum end cover 243 from rotating relative to the drum 20.

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, the bearing 26 is arranged in the mounting groove, the outer ring of the bearing 26 is fixedly connected with the pressing block 22, and the 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 processed with a shaft shoulder, and the bearing 26 is clamped at the shaft shoulder.

The outer end face of the pressing block 22 may be provided with a groove and/or a protrusion for external connection, which is engaged with a concave-convex portion provided on the corresponding end face of the roller bracket. The grooves and/or projections should be offset from the center of the compact 22 or be non-circular in shape.

In an 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 stop portion 221 extending outward, the inner wall of the roller cavity is provided with a rotation stop groove 280 engaged with the rotation stop portion 221, and the rotation stop groove 280 may be configured in a shape adapted to the rotation stop portion 221. When the drum 20 is loaded into the drum cavity, the rotation stop portion 221 is fitted into the rotation stop groove 280, preventing the briquette 22 from rotating following the drum 20.

In one embodiment of the present disclosure, the rotation stop portion 221 and the rotation stop groove 280 may have a trapezoidal shape, a rectangular shape, a triangular shape, a polygonal shape, etc. which are well known to those skilled in the art. By the engagement of the rotation stop portion 221 with the rotation stop groove 280, not only the drum 20 can be supported on the drum bracket 28, but also the rotation stop portion 221 can be prevented from rotating relative to the drum bracket 28.

To enable the drum 20 to be mounted and dismounted, the rotation-stopping grooves 280 penetrate to the end face of the drum bracket 28. During assembly, one end of the roller 20 can be first inserted into the rotating member at the corresponding end of the roller bracket 28, and the other end of the roller can be directly inserted into the rotation stopping groove 280 through the rotation stopping portion 221 of the pressing block 22. Of course, in order to ensure the sealing between the drum 20 and the end surface of the drum holder 28, when the rotation stopper 221 is installed, it is necessary to move the rotation stopper in the direction of the drum 20 by a predetermined distance, to set the elastic means 23 in a pre-compressed state, and after the elastic means 23 is installed in the rotation stopper groove 280, the rotation stopper 221 is pressed against the side wall of the rotation stopper groove 280 by the elastic means 23. Finally, the rotation stopper 221 is restricted in the rotation stopper groove 280 by the drum cover 29 to prevent the rotation stopper 221 from being released from the rotation stopper groove 280.

A detent groove 280 may be provided on the roller bracket 28 and correspond to the detent 221 of the pressure piece 22, the detent groove 280 extending radially out of the end of the roller bracket 28. The drum cover 29 can close the rotation stopper groove 280 and restrict the rotation stopper 221 in the rotation stopper groove 280. The drum cover 29 may be provided in a frame-type structure. The roller 20 can partially protrude from the middle of the roller cover 29 and fit the floor for cleaning.

In one embodiment of the present disclosure, referring to fig. 6, a side wall portion 284 is disposed in the roller cavity of the roller bracket 28, and an outer end surface of the pressing block 22 can be attached to an 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 can be always kept in contact with the end surface of the side wall portion 284, so that the end surface sealing property between the roller 20 and the roller bracket 28 is improved, and the position of the end surface sealing forms a part of the first air duct inlet, thereby improving the suction capacity of the first air duct inlet.

The upper end of the side wall portion 284 (the open end of the roller chamber) is provided with an escape slot through which the rotation stop portion 221 of the pressure block 22 can pass to mate with the rotation stop slot 280 at the end of the roller frame 28. The detent groove 280 may be provided, for example, at an escape groove position of the side wall portion 284, and will not be described in detail here.

The drum cover 29 may be attached to the machine body 1 or to the drum support 28. The roller cover plate 29 is detachably connected, and the specific connection mode includes, but is not limited to, screw fixation, insertion, clamping and the like.

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

In a particular embodiment of the present disclosure, the slide 291 may be guide-fitted in a corresponding guide groove provided on the roller cover 29 and pre-pressed in the first position by elastic means, the elastic force of which needs to be overcome when driving the slide 291 to move to the second position; after release, the slider 291 is moved from the second position to the first position by the restoring force of the elastic means. The locking member 292 may be engaged with the slide 291 by a groove or other means known to those skilled in the art such that the locking member 292 may move in synchronization with the slide 291. The locking member 292 may be provided with an engaging portion 2920, and the engaging portion 2920 may be provided at the tip of the locking member 292, for example, or at any other position.

When the roller cover 29 is mounted on the roller bracket 28, the locking member 292 is located in the escape space 281 of the roller bracket 28, so that the user can move the locking member 292 in the escape space 281 of the roller bracket 28 via the slider 291. The roller holder 28 is provided at a corresponding position with a locking catch 282 for cooperating with the catch 2920, so that when the slider 291 is moved from the second position to the first position, the catch 2920 of the locking member 292 can be moved to cooperate with the locking catch 282 of the roller holder 28 to catch the roller cover 29 with the roller holder 28. And the engaging portion 2920 and the locking notch 282 can be kept fitted together by the elastic means.

When the roller cover 29 needs to be removed, the driving slide 291 moves to the second position against the elastic device, so that the slide 291 can drive the engaging portion 2920 of the locking member 292 to disengage from the locking catch 282, and at this time, the roller cover 29 can be removed from the roller bracket 28, so as to replace or maintain the corresponding component, such as replacing or maintaining the roller 20. A plurality of engaging portions 2920 on the locking member 292 may be provided and distributed at intervals along the extending direction of the roller cover 29; correspondingly, a plurality of locking slots 282 are also arranged on the roller bracket 28, so that a plurality of locking structures can be arranged in the extending direction of the roller bracket 28 and the roller cover plate 29, the roller cover plate 29 can be stably clamped with the roller bracket 28, and the stability of connection between the roller bracket 28 and the roller cover plate is ensured.

When the roller 20 is installed, the pressing block 22 moves a certain distance towards the inner direction of the roller 20, the elastic device 23 generates pre-pressure 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 face of the roller bracket 28 under the action of the elastic device 23, so that sealing is realized. After the roller 20 is installed, the roller cover plate 29 is assembled on the roller bracket 28, the sliding block 291 of the roller cover plate 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 plate 29 to move, the clamping part 2920 of the locking piece 292 is matched with the locking clamping groove 282 on the roller bracket 28, the roller cover plate 29 is clamped with the roller bracket 28, and the roller 20 is limited between the roller bracket 28 and the roller cover plate 29.

When the roller 20 is removed, the sliding block 291 of the roller cover 29 is moved from the second position to the first position, the engaging portion 2920 of the locking member 292 is disengaged from the locking engaging groove 282 of the roller holder 28, and then the roller cover 29 is removed and the roller 20 on the roller holder 28 is taken out.

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 as to improve the cleaning efficiency of the roller 20.

The auxiliary cleaning assembly 9 includes a spray head 91, the spray head 91 faces the drum 20, and is configured to spray water toward the drum 20. The spray head 91 is connected to the clean water tank 5, and is capable of spraying the cleaning solution in the clean water tank 5 onto the surface of the drum 20.

Specifically, the spray 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 number, and when the spray head 91 is provided in plural number, it may be arranged along the axial direction of the drum 20. The spray head 91 may adopt an atomizing spray head 91, making the cleaning solution spray more uniformly, and saving the consumption speed of the cleaning solution.

In one embodiment, referring to fig. 9 and 10, the spray head 91 is provided in plurality, and the plurality of spray heads 91 are integrally provided on the water supply device 90. The water supply device 90 may be a plate of a bar structure, parallel to the drum 20. The water supply device 90 is further provided with a total water inlet 901 and a plurality of water supply channels 902, wherein the total water inlet 901 is communicated with the clean water tank 5, the plurality of spray heads 91 are communicated with the total water inlet 901 through the water supply channels 902, the clean water tank 5 supplies cleaning liquid to the plurality of water supply channels 902 through the total water inlet 901, and then supplies the cleaning liquid to the spray heads 91 through the water supply channels 902. The water supply passages 902 may be provided in plural numbers to correspond to the nozzles 91 one to 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 amount of water and the pressure of water of each spray head 91 are the same. For example, in the embodiment illustrated in fig. 9 and 10, eight nozzles 91 are provided, eight nozzles are uniformly distributed on the water supply device 90, the total water inlet 901 is located in the middle position of the water supply device 90, the water supply channel 902 extends from the position of the total water inlet 901 to two sides, and the distance from the total water inlet 901 to each nozzle 91 is ensured to be the same by branching, so that the water pressure and the water amount of each nozzle 91 can be ensured to be the same.

The water supply passage 902 of the water supply device 90 may be provided in a piping structure, or may be provided in a groove structure. The water supply passage 902 of the channel structure may be sealingly attached to the surface of the body 1, thereby forming a closed passage. The water supply device 90 is connected to the machine body 1 by means including, but not limited to, welding, bonding, screwing, etc.

Referring to fig. 8, the auxiliary cleaning assembly 9 further includes a water distribution bar 92, and the water distribution bar 92 is configured to closely adhere to the surface of the drum 20 to uniformly distribute the cleaning liquid on the surface of the drum 20 during the rotation of the drum 20. Both ends of the water distribution bar 92 extend in the axial direction of the drum 20. Referring to the view shown in fig. 5, the drum 20 rotates counterclockwise, the water homogenizing bar 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 uniformly spread by the water homogenizing bar 92 in the rotation of the drum 20.

The auxiliary cleaning assembly 9 further includes a wiper plate 93, and the wiper plate 93 is configured to be in contact engagement with the surface of the drum 20. The wiper 93 is disposed at the rear side of the drum 20 above the inlet of the first air path 31 and below the shower head 91. The wiper plate 93 wipes off dirt, water, etc. adsorbed on the drum 20 during the rotation of the drum 20. Dirt and water stains scraped by the wiper plate 93 can fall into the inlet of the first air duct 31 below and are sucked away by the first air duct 31. The two ends of the wiper plate 93 extend along the axial direction of the roller 20 and are tightly matched with the surface of the roller 20, so that the sealing performance at the inlet of the first air duct 31 can be improved, and the wind loss is reduced.

Accordingly, the drum 20 rotates to the position of the wiper 93 after cleaning the working surface, so that the wiper 93 can wipe off the contaminated water after cleaning the working surface by the drum 20 and suck the wiped-off contaminated water through the inlet of the first air duct 31. Here, the wiper plate 93 participates in enclosing the upper area of the inlet of the first air path 31. Referring to fig. 8, the wiper 93 is located at the rear end of the drum 20 and at the upper end of the inlet of the first air path 31, and when the wiper 93 is in contact with the drum 20, a sealed area is defined between the wiper 93, the drum 20, the working surface and the lower area of the inlet of the first air path 31, thereby ensuring the suction capacity of the inlet of the first air path 31.

The cylinder 20 is at the rotation in-process, and the cleaning solution is sprinkled to cylinder 20 surface to shower nozzle 91, and cylinder 20 is rotated to even water strip 92 department by the part of spraying the cleaning solution, and is paved evenly with the cleaning solution through even water strip 92, then rotates to below working face, cleans the working face, and cylinder 20 cleans the working face after rotating to wiper plate 93 and clears up, and dirt, the water stain that wiper plate 93 scraped can be siphoned away by first wind channel 31.

The water-uniforming strip 92 and the wiper plate 93 of the auxiliary cleaning unit 9 have elasticity and can be elastically abutted against the surface of the drum 20, and can be still attached to the surface of the drum 20 after being abraded by rubbing against the drum 20 for a long time. The water distribution strip 92 and the wiper plate 93 may be made of an elastic material such as rubber, plastic, or the like. The water homogenizing strip 92 and the water scraping plate 93 can be detachably connected with the machine body 1, the connection mode can be clamping connection, bonding connection, screw fixation and the like, and when the water homogenizing strip 92 and the water scraping plate 93 are used for a long time and are abraded seriously, the water homogenizing strip 92 and the water scraping plate 93 can be detached and replaced with new water homogenizing strips.

The bottom edge of the lower area of the inlet of the first air duct 31 can be provided with a sealing edge 94, and when the machine body 1 travels along the working surface, the sealing edge 94 is attached to the working surface, so that the sealing property 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 be capable of elastically abutting the working surface and remaining attached to the working surface after wear. The sealing edge 94 can be detachably connected to the edge of the first air duct 31 by clamping, bonding, screwing and the like, and can be replaced when the abrasion is serious.

The bottom of the roller 20 is attached to the working surface, the water scraping plate 93 above the inlet of the first air duct 31 is attached to the roller 20, and the sealing edge 94 at the bottom edge of the inlet of the first air duct 31 is attached to the working surface, so that a closed structure can be formed by enclosing, 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 loss in the air duct is large, and the first air duct 31 cannot suck away the sewage scraped by the scraper 93.

In order to solve the above problem, in one embodiment, as shown in fig. 8, the body 1 may be configured to include a floating portion 11-a and a fixed portion 11-B, and the floating portion 11-a and the fixed portion 11-B are hinged together by a hinge shaft so that the floating portion 11-a can rotate up and down about the hinge shaft relative to the fixed portion 11-B. The installation chamber, the drum 20 is provided on the floating part 11-a. The roller 20 is configured to maintain contact with the work surface under the influence of its own weight and the weight of 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, so 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 mounting cavity 101 at the bottom of the machine body 1, a supporting seat 18 matched with the hinge shaft 120 is disposed in the groove, the supporting seat 18 is provided with a cambered surface adapted to the hinge shaft 120, and the hinge shaft 120 can rotate relative to the supporting seat 18. Specifically, the support seat 18 may include two arc surfaces capable of being respectively engaged with both ends of the hinge shaft 120. The hinge shafts 120 of the drum bracket 28 may be provided in plural, and are distributed at intervals along the extending direction of the drum bracket 28, and correspondingly, the support seats 18 of the machine body 1 may also be provided in plural, and correspond to the hinge shafts 120 one by one.

The machine body 1 is further provided with a rotating shaft gland 19, the rotating shaft gland 19 is covered on the groove where the supporting seat 18 is located, 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 in a manner of screwing, fixing, inserting, riveting and the like.

By adopting the structure, the roller assembly 2 consisting of the roller bracket 28, the roller 20 assembled on the roller bracket 28 and the roller cover plate 29 can integrally rotate relative to the machine body 1, so that the roller assembly 2 can always ensure that the roller 20 can be in contact fit with a 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 roller assembly 2, a limit buckle 283 is disposed on the roller bracket 28, and a limit slot 1011 is disposed on the machine body 1 and matches with the limit buckle 283. Referring to fig. 11, a limit slot 1011 is disposed at a side of the mounting cavity 101 of the machine body 1 opposite to the support seat 18; accordingly, the stopper catch 283 is provided at a side of the drum bracket 28 opposite to the hinge shaft 120. During assembly, the limit buckle 283 on the roller bracket 20 is firstly extended into the limit slot 1011, then the hinge shaft 120 on the other side is installed in the support seat 18, and finally the hinge shaft 120 is limited on the support seat 18 of the machine body 1 through the hinge shaft gland 19. One side of the roller bracket 28 is limited through a limiting buckle 283, and the other side is limited through the matching of a hinge shaft, a supporting seat and a rotating shaft gland 19. This allows the movement of the position-limiting latch 283 in the position-limiting latch 1011 to limit the rotation range of the roller bracket 28 relative to the machine body 1, thereby limiting the movement of the roller assembly 2 within a certain range.

Of course, the limit buckle 283 may be disposed on the machine body 1, and the limit slot 1011 is disposed on the roller bracket 28, which also can achieve the above-mentioned functions, and will not be described in detail herein.

A drive wheel 8 for supporting organism 1 sets up in the bottom of organism 1, and drive wheel 8 is provided with two, distributes in the relative both sides of organism 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, the head of the machine body 1 is provided in a rectangular structure, and a striking plate for detecting an obstacle is provided outside the front end of the machine body 1, and the drum 20 is provided at the bottom of the front end of the machine body 1. The universal wheels 13 may be provided in at least two positions on the machine body 1 between the drum 20 and the driving wheels 8 and in positions near both ends of the drum 20, respectively, whereby the machine body 1 can be stably supported on the working surface by the two universal wheels 13 and 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 phenomenon that the roller 20 leaves the working surface due to surface abrasion of the roller 20 or unevenness of the working surface is avoided, and a closed space can be formed between the inlet of the first air duct 31 and the working surface support.

Water tank assembly

The water tank or the water tank assembly of the self-moving cleaning robot includes a dirty water tank 4 and a clean water tank 5, and a second air path is formed in the water tank. Specifically, referring to fig. 13, the sump 4 has a second air duct inlet 320 and a second air duct outlet 321. The second air duct inlet 320 and the second air duct outlet 321 are respectively disposed at different positions of the water tank, referring to fig. 13, the second air duct inlet 320 and the second air duct outlet 321 are respectively located at two opposite sides of the water tank, so that air flow and liquid entering the water tank through the second air duct inlet 320 can flow for a certain distance along the extending direction of the water tank, and in the flowing process, the liquid can gradually drop to the bottom of the water tank under the action of self gravity to be stored, and the gas flows out from the second air duct 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 communicated with the first air duct 31, and the second air duct outlet 321 is communicated 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 disposed at a higher position of the waste water tank 4, and when the air carrying liquid enters the relatively spacious inner cavity of the water tank through the second air duct inlet 320, the airflow rate is reduced, the air carrying capacity is reduced, the liquid can be separated from the air and remain in the waste water tank 4, and the air can be discharged through the second air duct outlet 321. In addition, the second air duct inlet 320 is arranged at a high level, which causes the air flow to flow upwards in the tank interior, and the liquid will also be separated from the air under the influence of gravity and remain in the tank sump 4.

It should be noted that the water level in the waste water tank 4 cannot be higher than the lowest position of the second air duct inlet 320 and the second air duct outlet 321, so as to prevent the waste water from overflowing from the second air duct inlet 320 and the second air duct outlet 321, and a safe distance should be left between the water level line in the waste water tank 4 and the second air duct outlet 321, so as to prevent the waste water from being sucked into the fan assembly 7 by the air flow due to being too close to the second air duct outlet 321. In order to maintain the minimum flow rate of the air flow in the second air channel in the sewage tank 4 and ensure that the sewage enters the sewage tank 4 and is separated from the air, the highest value of the water level in the sewage tank 4 should be set and the water level should be controlled not to exceed the highest value. A water level detecting device may be provided on the sewage tank 4 to detect the water level, and the water level detecting device may transmit 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 a maximum value, the control unit controls the alarm device to send out an alarm signal so as to remind a user. Alarm signal can be warning light, warning sound etc. and the control unit can also control fan subassembly 7 and close to sewage gets into fan subassembly 7, causes the damage to fan subassembly 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 detecting device and extract 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 machine body 1, the water tank 15 extending from a position adjacent to the cleaning device to a rear side of the machine body 1, and the water tank is detachably mounted in the water tank 15. After the self-moving cleaning robot works for a period of time, dust or other dirt is easily deposited in a gap between the sewage tank 4 and the machine body 1, and a user can integrally detach the water tank and clean the water tank. The tank and the tank 15 can be engaged by a quick release mechanism, such as but not limited to a snap, a slot, etc., which are well known to those skilled in the art.

Referring to fig. 14 and 15, batteries 16 may be disposed at both sides of the water tank 15 to supply power to the body 1. Specifically, the battery mounting brackets 160 are respectively provided at both sides of the tank 15, and the two batteries 16 are respectively mounted on the battery mounting brackets 160. The two batteries 16 may be connected in series, for example, the batteries 16 on both sides may be connected in series through a connection line 161, the connection line 161 may be routed through a gap between the cleaning device and the water tank, or may be routed at any other position on the machine body 1 that meets the routing requirement, which is not limited herein.

In one embodiment of the present disclosure, two driving wheels 8 may be mounted on the body 1 at positions on both sides of the tank 15. Specifically, driving wheel mounting seats 81 are respectively provided at positions on the machine body 1 on both sides of the water tank 15, the open ends of the driving wheel mounting seats 81 face the lower side of the machine body 1, and two battery mounting brackets 160 may be respectively installed at upper positions of 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 travel. Wherein, still be provided with driving motor 80 in drive wheel mount pad 81, driving motor 80 is connected with the transmission of corresponding drive wheel 8, drives drive wheel 8 and rotates. Of course, the driving motor 80 and the driving wheel 8 may be integrally installed in the driving wheel mounting seat 81 in a modular form.

The sewage tank 4 and the clean water tank 5 can be integrally processed and formed, and can also be formed by splicing multiple parts. In one embodiment, the foul water tank 4 is provided in a separate structure, as shown in fig. 16, including an upper housing 401, a middle housing 402, and a lower housing 403, which are sequentially fastened together. The upper housing 401 forms the top surface of the waste water tank 4, the lower housing 403 forms the bottom surface of the waste water tank 4, the middle housing 402 is a ring structure or a U-shaped hollow structure and forms part of the side wall of the waste water tank 4, the connection modes of the three include but are not limited to bonding, welding, screw fixation and the like, and the connection parts are provided with sealing structures to prevent waste water leakage. The edge of the upper case 401 extends downward and is connected to the middle case 402, and the second air duct inlet 320 is opened at the front side of the upper case 401.

In an embodiment, the sewage tank 4 may be disposed to surround the fan assembly 7, and the rear end region of the second air duct 32 is uniformly disposed to surround the air inlet of the fan assembly 7, so that the air inlet of the fan assembly 7 can uniformly intake air from the peripheral direction, thereby avoiding the situation that the air speed of the local air flow is too high, which may result in too fast air flow in the sewage tank 4 and insufficient water-air separation.

Specifically, the lower housing 403 may be provided with a blower receiving cavity 41, and an open end of the blower receiving cavity 41 faces the bottom of the lower housing 403. The fan accommodating cavity 41 penetrates through the hollow structure of the middle shell 402 and extends towards the upper shell 401, and the second air duct outlet 321 is arranged at the top of the fan accommodating cavity 41 and communicated with the fan accommodating cavity 41. A gap is left between the top of the fan accommodating chamber 41 and the upper housing 401, and the second air duct outlet 321 is an inlet of the third air duct 33. The fan assembly 7 is installed in the fan accommodating chamber 41, and the bottom of the fan accommodating chamber 41 is open, so that the fan assembly 7 can be installed from the bottom of the fan accommodating chamber 41. When the fan assembly 7 is in operation, the airflow sucked from the air duct system can be discharged downwards from the bottom end of the fan accommodating chamber 41. The blower receiving cavity 41 and the lower housing 403 may be integrally formed, for example, by injection molding; the connection may also be fixed by welding, bonding, hot melting, etc., which is not limited by the present disclosure.

Referring to fig. 16, the blower receiving chamber 41 is located at a side of the waste water tank 4 away from the second air duct inlet 320, and an annular side wall of the blower receiving chamber 41 and a corresponding side wall of the waste water tank 4 enclose a second air duct 322, and the second air duct 322 is a part of the second air duct 32. The area in the inner chamber of the waste water tank 4 from the second air duct inlet 320 to the fan accommodating chamber 41 is a first passage 323 of the second air duct 32.

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

In operation, the air flow carries liquid from the second air chute inlet 320 first into the first passageway 323 of the second air chute. While flowing in the first passage 323, the liquid drops to the bottom of the sewage tank 4 by its own weight for storage because of the low flow velocity of the gas stream. The air flows through the first passage 323 into the second passage 322, and 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 accommodating chamber 41. In addition, in the process that the airflow in the second channel 322 rises, the liquid carrying capacity of the airflow is reduced, and the liquid falls into the bottom of the sewage tank 4 for storage under the action of the gravity of the liquid, so that the gas-liquid separation effect is further improved.

The second channel 322 is disposed such that the airflow can uniformly flow to the second air channel outlet 321 from the peripheral direction, thereby avoiding the problem that the airflow carries a part of the liquid to flow from the second air channel outlet 321, such as the fan assembly 7, due to the over-high speed of the local airflow. The second passage 322 is defined by a part of the side wall of the lower case 403, a part of the side wall of the middle case 402, a part of the side wall of the upper case 401, and a side wall of the blower housing chamber 41.

In one embodiment of the present disclosure, a water tank assembly is provided, which includes the above-mentioned clean water tank 5, the sewage tank 4, and the blower housing chamber 41.

The fan accommodating cavity 41 is used for installing the fan assembly 7, the opening of the fan accommodating cavity 41 faces the bottom of the water tank assembly, and the fan assembly can be installed into the fan accommodating cavity 41 from the opening. The sewage tank 4 has an air duct inlet, and the top of the fan accommodating chamber 41 is provided with an air duct outlet communicated with the sewage tank 4, specifically, the air duct inlet may be a second air duct inlet 320, and the air duct outlet may be a second air duct outlet 321. A second channel 322 is provided between the clean water tank 5 and the blower receiving chamber 41, so that the air flow entering the waste water tank from the air duct inlet can be discharged from the air duct outlet through the second channel 322.

In one embodiment of the present disclosure, in order to improve the gas-liquid separation capability 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 chamber 41; therefore, moisture in the first passage 323 can be blocked from directly flowing out of the second air duct 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 passage 322, and a part of the moisture moves upwards and enters the second air duct outlet 321 at the top of the fan accommodating cavity 41.

Specifically, the wind shielding mechanism 42 may be disposed at the top inside the sewage tank 4, and may be located at any position between the second wind tunnel inlet 320 and the fan receiving chamber 41. The air flow entering from the second air duct inlet 320 is obstructed by the wind shielding mechanism 42, and needs to pass by the bottom of the wind shielding mechanism 42 and then flow to the second air duct outlet 321 at the top of the fan accommodating chamber 41. The wind shielding mechanism 42 extends the flow path of the air flow in the second air duct 32 and changes the flow direction of the air flow, which facilitates the sewage to be sufficiently separated from the air in the sewage tank 4.

Preferably, the wind shielding mechanism 42 may be disposed near the second wind duct outlet 321 or near the fan accommodating chamber 41, and the bottom of the wind shielding mechanism 42 extends downward to be lower than the top of the fan accommodating chamber 41 and higher than the highest value of the water level of the waste water tank 4, so that a gap for passing the airflow is formed between the wind shielding mechanism 42 and the sidewall of the fan accommodating chamber 41. The air flow in the sewage tank 4 bypasses the bottom end of the wind shielding mechanism 42, flows upward along the gap between the wind shielding mechanism 42 and the sidewall of the fan accommodating chamber 41, and then reaches the second air duct outlet 321. In the process that the airflow in the sewage tank 4 flows upwards by bypassing the wind shielding mechanism 42, the water stain carrying capacity is reduced, and therefore the water stain can be more fully separated from the air.

The wind-shielding mechanism 42 may be configured in a plate-like or strip-like structure and is 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 disclosure. The clean water tank 5 may be disposed at one side of the sewage tank 4 or may be disposed around the sewage tank 4 in a partially surrounding manner, and the position of the clean water tank is merely an example and the disclosure is not limited thereto.

In one embodiment of the present disclosure, as shown in fig. 16 and 17, a groove semi-opened toward the upper housing 401 is provided at an edge position of the middle housing 402 of the waste water 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 the closed clean water tank 5. The clean water tank 5 may be constructed in a ring structure based on the shape of the middle housing 402, for example, disposed around the edge position of the wastewater tank. Of course, the clear water tank 5 may be surrounded 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 arranged at the front end position of the upper housing 401, the clean water tank 5 is arranged around the three-side wall of the dirty water tank, and is approximately U-shaped or C-shaped.

Referring to fig. 16 and 17 in particular, the middle of the middle housing 402 is hollow, and a first side wall 4020 located on the outer side and a second side wall 4021 located on the inner side are disposed at the edge positions of the middle housing. The first side wall 4020 and the second side wall 4021 are parallel to and spaced apart from each other, and define a groove with one end open with the bottom of the middle housing 402. Based on a similar structure, the edge position of the upper housing 401 is provided with a third sidewall 4010 located on the outer side and a fourth sidewall 4011 located on the inner side, and the third sidewall 4010 and the fourth sidewall 4011 enclose a groove with one end open with the top of the upper housing 401. When assembled, the third side 4010 of the upper housing 401 is butted against the first side 4020 of the middle housing 402, and the fourth side 4011 of the upper housing 401 is butted against the second side 4021 of the middle housing 402, so that the grooves of the upper housing 401 and the grooves of the middle housing 402 jointly enclose the sealed clean water tank 5.

The clear water tank 5 can be in an annular structure, and also can be in a C-shaped or U-shaped structure. For example, in the structures of fig. 16 and 17, the middle housing 402 and the upper housing 401 are both rectangular structures, and the clean water tank 5 extends to the three side walls of the middle housing 402 and the upper housing 401, because the second air duct inlet 320 is provided on the front end side wall of the upper housing 401.

The clean water tank 5 is connected with a conveying pipeline, a water pump 54 is installed on the conveying pipeline, a spray head 91 of the auxiliary cleaning assembly 9 is installed at the tail end of the conveying pipeline, the conveying pipeline can extract water or cleaning liquid in the clean water tank 5 through the water pump 54 and convey the water or the cleaning liquid to the spray head 91, and then the cleaning liquid or the clean water is sprayed to the cleaning device through the spray head 91.

In one embodiment, as shown in fig. 14 and 18, the clean water tank 5 may be provided with a clean water supply port 501, the housing 1 is provided with a clean water docking port 102 for docking with the clean water supply port 501, and when the water tank is assembled on the housing 1, the clean water docking port 102 on the housing 1 may be docked with the clean water supply port 501 on the water tank to communicate with the clean water tank 5.

The clean water docking port 102 is connected to the delivery pipe 53 to deliver water or cleaning solution in the clean water tank to the position of the spray 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, the clear water tank communication valve 531 having 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. The machine body 1 is provided with an opening structure matched with the elastic valve rod 532, when the clean water tank 5 is installed on the machine body 1, the conveying pipeline 53 is connected with the clean water tank communicating valve 531, and the opening structure can jack up the elastic valve rod 532, so that the clean water tank communicating valve 531 is opened. After the clean water tank 5 is detached from the machine body 1, the conveying pipeline 53 is disconnected from the clean water tank communicating valve 531, the elastic valve rod 532 resets, the clean water tank communicating valve 531 is closed, and the cleaning liquid in the clean water tank 5 is prevented from leaking.

As shown in fig. 18, a clean water suction pipe 530 may be disposed in the clean water tank 5, one end of the clean water suction pipe 530 is connected to the clean water tank communication valve 531, and the other end extends to the bottom of the clean water tank 5. The clean water suction pipe 530 and the conveying pipeline 53 can be communicated through the clean water tank communicating valve 531 to suck the cleaning liquid at the bottom of the clean water tank 5. The clean water suction pipe 530 can be arranged as a straight pipe or a bent pipe according to the position of the clean water tank communication valve 531 or other structural arrangement requirements.

The machine body 1 may further be provided with a water-free detection sensor 103, and the sewage detection sensor 103 may be used to detect whether water passes through the conveying pipeline 53, so as to detect an abnormality. When an abnormality occurs, the no-water detection sensor 103 can send a detection signal to the control unit, and the control unit can send an alarm based on the detection signal.

With continued reference to fig. 14, both the no-water detection sensor 103 on the machine body 1 and the water pump 54 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 machine 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 the second air duct inlet 320.

With continued reference to fig. 17, the lower housing 403 includes a bottom wall 4031 and side walls 4030, and the side walls 4030 of the lower housing 403 are attached to the lower portion of the first side wall 4020 of the middle housing 402 so that the inner walls of the upper housing 401, the middle housing 402 and the lower housing 403 enclose the waste water tank 4. That is, the side wall 4030 and the bottom wall 4031 of the lower case 401, the bottom and second side walls 4021 of the middle case 402, and the fourth side wall 4011 and the top of the upper case 401 together enclose the above-described wastewater tank 4.

The blower receiving cavity 41 and the lower housing 403 may be integrally formed, and the blower receiving cavity 41 may extend from the bottom wall 4031 of the lower housing 403 to the upper housing 401, forming the blower receiving cavity 41 with an open lower end. The blower receiving cavity 41 can also be considered as an upwardly extending projection formed on the bottom wall 4031 of the lower case 403. In this structure, the foul water tank 4 is enclosed by the inner walls (including the side wall 4030 and the bottom wall 4031) of the lower case 403, the enclosing side wall 410 and the top wall 411 of the fan accommodating chamber 41, the second side wall 4020 of the middle case 402, and the fourth side wall 4011 and the top thereof of the upper case 401. 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 fan accommodating chamber 41 is provided at a side of the sump 4 away from the second air duct inlet 320, a region of the sump 4 from the second air duct inlet 320 to the fan accommodating chamber 41 is the first passage 323 of the second air duct. That is, the second air duct may be entirely divided into two portions, a first passage 323 adjacent to the second air duct inlet 320 and a second passage 322 adjacent to the second air duct outlet 321. This allows the airflow entering the first path 323 through the second air duct inlet 320 to finally pass through the second path 322 around the blower receiving chamber 41 and finally flow out of the second air duct outlet 321 at the top of the blower receiving chamber 41.

In another embodiment of the present disclosure, the dirty water tank 4 and the clean water tank 5 may be an integrated structure. I.e. the waste water tank 4 and the clean water tank 5 can be regarded as one integrated water tank. The first side wall 4020, the third side wall 4010 and the side wall 4030 are integrally side walls 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 housing 401, the second side wall 4021 of the middle housing 402, and the bottom wall are integrally a partition part of the clean water tank 5 and the sewage tank 4, and the partition part divides the 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 part of the side wall and a part of the top wall of the tank enclose a clean water tank 5, and the rest of the inner cavity of the tank is a sewage tank 4. Of course, the partition, a part of the side wall and a part of the bottom wall 4031 of the tank may enclose the clean water tank 5, and the rest of the inner cavity of the tank may be the sewage tank 4.

An upward protrusion is arranged at a position, far away from the second air duct inlet 320, of the bottom wall 4031 of the water tank to form a fan accommodating cavity 41 with an opening at the lower end, a gap is formed 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 chamber 41 limits the shape of the waste water tank 4, the enclosing side wall 410 and the partition portion enclose the second channel 322, and the position from the side of the second air duct inlet 320 to the fan accommodating chamber 41 in the waste water tank 4 is the first channel 323 of the second air duct 32.

As shown in fig. 16 and 17, the waste water tank 4 is provided with a drain port 43, and waste water in the waste water tank 4 can be drained 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 inlet port 51 may be both provided on the upper case 401. When the mobile robot returns to the base station, the water outlet 43 and the water inlet 51 may be connected to a drain pipe and a water injection pipe provided in the base station, respectively, to supply cleaning solution to the clean water tank 5 through the base station and to drain the sewage in the sewage tank 4.

The sewage tank 4 may be provided therein with a sewage suction pipe 430, wherein the upper end of the sewage suction pipe 430 corresponds to the water outlet 43, and the lower end thereof extends to the bottom of the sewage tank, so as to suck sewage at the bottom of the sewage tank. After the mobile robot returns to the base station, the sewage pipe of the base station extends from the water outlet 43 to be butted with the sewage suction pipe 430, and sewage in the sewage tank 4 is extracted. The wastewater suction pipe 430 can be arranged as a straight pipe or an elbow pipe according to the position of the water discharge port 43 or other structural arrangement requirements. The upper end of the sewage suction pipe 430 can be provided with a butt joint 4301, and the butt joint 4301 is used for connecting a sewage discharge pipe. The butt joint 4301 can be made of materials with certain elasticity, such as rubber, plastic, etc., and both 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 431 may be disposed in the drain opening 43 of the waste water tank 4, and when the sewage pipe extends from the drain opening 43 to be butted against the sewage suction pipe 430, the first movable valve 431 may be pushed to open to communicate the passage between the sewage pipe and the waste water tank 4. When the sewage pipe is separated from the sewage tank, the first movable valve body 431 is automatically reset to close the sewage suction pipe, so that sewage is prevented from leaking when the sewage tank is shaken. The structure of the first movable valve body 431 may be selected from those well 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 corresponding structures for interfacing with a base station water filling pipe, such as a second movable valve body 511. When the water injection pipe is butted against the second movable valve body 511, the second movable valve body 511 can be pushed to open to conduct a passage between the water injection pipe and the clean water tank 5, so that water can be supplied to the clean water tank 5 through the base station. When the water injection pipe is disconnected, the second movable valve body 511 is reset to close the water inlet 51 of the clean water tank 5, so as to prevent water or cleaning liquid in the clean water tank 5 from leaking. The second movable valve body 511 may adopt the same structure as the first movable valve body 431 or adopt other structures known to those skilled in the art, and will not be described in detail herein.

The cleaning liquid in the clean water tank 5 can also be used for heat dissipation of the heating elements on the machine body 1. The heating element at least comprises a chip of the control unit, and elements such as resistors and diodes which generate heat are arranged on the chip, so that the working efficiency of the chip is influenced when the temperature of the heating element is too high. Specifically, as shown in fig. 14, the clean water tank 5 may be connected to the heat dissipation module 52 through a pipe, and provide a cleaning solution with a low temperature to the heat dissipation module 52, and the heat dissipation module 52 is disposed together with the heating element to 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 component to carry away heat from the heat generating component. The cleaning solution passing through the heat dissipation module 52 can reduce the temperature of the chip, and does not need to separately set a heat dissipation device for heat dissipation, thereby improving the integration level of the machine body 1. Heating elements may be provided adjacent to the clean water tank 5 or the cleaning device to reduce the length of the water pipe. In addition, the cleaning solution is heated after passing through the heat dissipation module 52, and the dissolution of stains on the working surface can be accelerated when the cleaning solution is conveyed to the cleaning device, so that the cleaning efficiency is improved.

In one embodiment, the pipeline connected to the heat dissipation module 52 may be a delivery pipeline 53 for supplying cleaning liquid from the clean water tank 5 to the cleaning device, and the water pump 54 simultaneously supplies cleaning liquid to the cleaning device and the heat generating unit through the delivery pipeline 53, so that the cost can be saved and the integration 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 pipeline, and a water pump is disposed on the circulation pipeline, and the water pump pumps the cleaning solution in the clean water tank 5 to the heat dissipation module 52 through the circulation pipeline, cools the heating element, and then sends the cleaning solution back to the clean water tank 5 through the circulation pipeline. In this embodiment, the heat dissipation module 52 of the circulation duct and the spray 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, and the dust collecting device 6 is configured to filter particles from the moisture entering the second air duct 32. As shown in fig. 19, the dirty water 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 detached by opening the cover plate 44 to clean the dust collecting device 6. The dust collecting device can be a dust collecting box, a filter mesh bag or other devices capable of realizing the filtering function.

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, the air flow carrying liquid firstly enters the dust collecting device 6 through the second air duct inlet 320, 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 collecting 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 installed at the top of the inside of the sewage tank 4 near the second air duct inlet 320, the dust collecting device 6 includes a fixing bracket 61 and a filter net 62 installed on the bracket, the fixing bracket 61 is detachably connected to the inside of the sewage tank 4, the inlet of the dust collecting device 6 is provided on the fixing bracket 61, and the filter net 62 serves as the outlet of the dust collecting device 6.

The dust collecting device 6 needs to be cleaned by frequent disassembly and assembly, and a fool-proof mechanism 45 can be arranged in the accommodating cavity of the sewage tank 4 in order to prevent a user from forgetting to install the dust collecting device 6. As shown in fig. 19, 20, 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 coupled to the sewage tank 4, and a torsion spring 452 preloading the cam 451 at a first position. The torsion spring 452 may be mounted on the axle of the 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 protrusion 4511 may be provided with a flat surface or an arc surface, and the cover 44 cannot drive the cam 451 to rotate when being installed, so that the installation cannot be performed.

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

When the dust collecting device 6 is installed in the accommodating cavity in the vertical direction, the pressing portion 63 can press the pressed portion 453 of the fool-proof mechanism 45 downward, so that the cam 451 is driven to rotate from the first position to the second position, and the protrusion 4511 of the cam 451 avoids the installation surface of the cover plate 44. When the dust collecting device 6 is removed, the cam 451 is returned to the first position by the torsion spring 452, and the protrusion 4511 rotates to the mounting position of the cover plate 44, so that the cover plate 44 cannot be mounted, thereby preventing the user from neglecting to mount the dust collecting device 6.

In a specific embodiment, the pressing portion 63 of the fixing bracket 61 may be a rib extending downward, and the pressed portion 453 of the fool-proof mechanism 45 may be disposed obliquely, and in the first position, an end of the pressed portion 453 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 cover plate 44. Further, a groove of the escape cam 451 should be left on the fixed bracket 61 on the side of the pressing portion 63 so as not to interfere with the cam 451 when the fixed bracket 61 is loaded into the sewage tank 4.

The fool-proof mechanisms 45 can be provided in two and are disposed on two opposite sides of the dust collecting device 6, the pressing portions 63 are correspondingly disposed on two sides of the fixing bracket 61, when the dust collecting device 6 is installed, the pressing portions 63 on two sides of the fixing bracket 61 simultaneously press the pressed portions 453 corresponding to the fool-proof mechanisms 45 on two sides, and the protruding portions 4511 of the driving cam 451 avoid the installation position of the cover plate 44.

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

As shown in fig. 13, the second air duct inlet 320 is provided with a first gate 46, one end of the first gate 46 is elastically connected to the waste water tank 4, and the other end is a free end, and the first gate 46 is pre-pressed at the position of the second air duct inlet 320 to close the second air duct inlet 320.

The first gate 46 may be made of a material having elasticity, such as rubber or a metal sheet, and the second air duct inlet 320 is closed by the elasticity of the first gate, or may be elastically connected to the sewage tank 4 by installing a torsion spring or a resilient plate, and the first gate 46 is closed by the elasticity of the torsion spring or the resilient plate, and the second air duct inlet 320 can be opened by the first gate 46 under the external force. The second duct inlet 320 faces downward and corresponds to the end of the first duct 31 facing upward. The first shutter 46 is disposed inside the second duct inlet 320, and may be disposed laterally or obliquely, and its free end can rotate toward the inside of the waste water 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: the first shutter 46 is lifted up to open the second air path inlet 320 when the waste water tank 4 is loaded into the body 1, and the first air path 31 and the second air path 32 are communicated. Specifically, the jacking portion 17 may be disposed in the end of the first air duct 31, and when the sewage tank 4 is loaded into the machine body 1, the jacking portion 17 can push the first gate 46 upwards against the elastic force of the first gate 46; when the sewage tank 4 is removed, the first shutter 46 is separated from the jack-up portion 17 and closes the second air path inlet 320 by the elastic force, thereby preventing the sewage from leaking out.

The jacking portion 17 may be a vertical plate, a vertical column, etc., and the connection manner of the jacking portion and the machine body 1 includes, but is not limited to, integral molding, bonding, screw fixing, etc. At least two of the jack-up portions 17 may be provided, and at least two of the jack-up portions 17 are provided at intervals and have the same height at the top end, and can simultaneously jack up the first shutter 46. The end of the jack 17 for jacking up the first shutter 46 may be provided in an arc structure so as not to excessively concentrate the pressure on the first shutter 46.

In order to improve the sealing effect, a first soft sealing glue 460 may be disposed around the joint between the second air duct inlet 320 and the first air duct 31, as shown in fig. 23, the first soft sealing glue 460 may be disposed at the edge of the second air duct inlet 320 or at the edge of the outlet of the first air duct 31, and the connection manner may be fixed connection such as bonding, clamping, and the like. The first soft sealing glue 460 has certain elasticity, and can seal a 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 circle of groove is formed on the outer side of the edge of the second air duct inlet 320, the first soft seal glue 460 is of an annular structure, one side of the first soft seal glue is embedded in the groove, and the other side of the first soft seal glue is provided with a flaring. After the sewage tank 4 is installed in the machine body 1, the first soft sealing rubber 460 is elastically abutted against the edge of the opening of the first air duct 31, so as to seal the gap between the second air duct inlet 320 and the first air duct 31.

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 is configured to close the outlet under the elastic action and open the outlet under the negative pressure generated by the fan assembly 7 to communicate the second air duct 32 and the third air duct 33.

Specifically, one end of the second shutter 47 is elastically connected to the sewage tank 4 or the fan accommodating 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, a metal sheet, etc., or may be provided with a torsion spring or a spring piece, etc., to generate elasticity. The second air duct outlet 321 faces downwards, the second shutter 47 is arranged on the outer side of the second air duct outlet 321, and negative pressure generated when the fan assembly 7 works can overcome the elastic action of the second shutter 47, so that the second shutter 47 moves downwards to open the second air duct outlet 321. After the fan assembly 7 is closed, the second shutter 47 closes the second air duct outlet 321 under the action of the elastic force, so as to prevent the sewage from leaking from the second air duct outlet 321. The second air duct outlet 321 is provided at the top of the fan accommodating chamber 41, the top of the fan accommodating chamber 41 is thin, and the second air duct outlet 321 may be provided to be upwardly protruded so as to provide a sufficient moving space for the second shutter 47 when the second shutter 47 is opened. Alternatively, the top wall of the fan accommodating chamber 41 is disposed obliquely, so that the second shutter 47 may also be disposed obliquely in the fan accommodating chamber 41 at the position of the second air duct outlet 321.

In order to improve the sealing effect, the joint of the second air duct outlet 321 and the air inlet of the fan assembly 7 may be surrounded by second soft sealing glue 470, and the second soft sealing glue 470 may be disposed at the edge of the second air duct outlet, for example, at the position of the second air duct outlet in the fan accommodating cavity 41, or may be disposed on the fan assembly 7. The second soft sealing glue 470 has certain elasticity, and can seal a 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 water baffle structure

The water tank that this disclosure provided not only can be used for storing liquid, can also be used for storing sewage. Of course, the water tank may comprise only a clean water tank or only a dirty water tank, depending on the application. The water tank can be applied to cleaning equipment, such as a floor washing machine, a sweeping robot and the like, and is used for storing liquid such as clear water, sewage, cleaning agent and the like; the method can also be applied to industrial liquid-containing systems, such as a steam-water separator and the like. The skilled person will be able to apply the water tank to a suitable device 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 formed in different positions of the tank body respectively. As shown in fig. 25, the water tank includes the above-described sewage tank 4 and the clean water tank 5. The inner cavity of the box body may be the inner cavity of the waste water tank 4, the air duct in the inner cavity may be the second air duct 32, and the air duct inlet and the air duct outlet are the second air duct inlet 320 and the second air duct outlet 321, respectively.

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 floor sweeping robot or other equipment, if the equipment travels or the movement speed changes, the liquid in the sewage tank 4 will shake, and when the movement direction of the equipment is opposite to the airflow direction in the second air duct 32, the liquid will be pushed up to the second air duct outlet 321 under the action of inertia. When the liquid level at the second air duct outlet 321 is too high, the liquid is easily drawn out from the second air duct outlet 321. In addition, a water level detection device, such as a water level detection device for detecting a water full, is generally 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 erroneous full water signal.

In contrast, the waste water tank 4 may be provided with a water blocking portion, which may have a water blocking plate 48 structure as shown in fig. 25 and 26. The water deflector 48 is disposed on the inner wall of the housing adjacent to the second air duct outlet 321 to block the water level from being raised and prevent liquid from being drawn out of the water tank through the second air duct outlet 321. Moreover, the water baffle 48 is provided with a through hole, and the air flow in the second air duct 32 can pass through the through hole and flow to the second air duct outlet 321, so that the influence of the water baffle 48 on the flow of the air flow is avoided. The through holes of the splash plate 48 may be provided in plural and evenly distributed on the splash plate 48 to reduce obstruction to the air flow.

The second duct 32 is spatially narrowed as the water level in the foul water tank 4 rises. A preset water level line should be set in the sewage tank 4, and the preset water level line can be a scale line for expressing water fullness in the sewage tank 4. A safety distance is reserved between the preset water level 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 guard 48 may be provided at a position of a preset water level of the wastewater tank 4.

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

The splash plate 48 is horizontally disposed and may be configured to conform to the shape of the second channel 322. The outer side of the water baffle 48 is connected with the inner wall of the sewage tank 4, and the inner side of the water baffle is connected with the enclosing side wall 410 of the fan accommodating cavity 41 by means of welding, buckling, bonding, integral injection molding, screw connection and the like.

In one embodiment of the present disclosure, the water guard is configured to float on the water surface, for example, on the 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 stop can be adapted to the shape of the second channel 322, and in particular, the water stop can be limited to the second channel 322 so that it can only be raised in the height direction as more sewage is added.

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

In an 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 deformation capability along with the rise of the water surface, but the flexible water blocking portion may still suppress the amplitude of the pushed up water surface, and may also play a role in preventing the pushed up water surface to a certain extent.

Water level detection 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 wastewater 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 device 49 detects that the water level reaches the preset water level, the second air duct 32 may be closed or the supply of the negative pressure to the second air duct 32 may be stopped, so as to prevent the liquid in the dirty water tank 4 from being carried out from the second air duct outlet 321 by the air flow in the second air duct 32.

The water level detecting device 49 of the present disclosure may be a capacitive type, or other structure for detecting water level through electrical conduction, and those skilled in the art can select it as needed.

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

The first 491 and second 492 detection probes may be disposed adjacently or in spaced relation within the chamber interior, for example, at the second air duct inlet 320, or at the second air duct outlet 321, or in the middle of the chamber interior. Due to the action of the airflow in the second air duct 32, the liquid in the water tank fluctuates in the extending direction of the second air duct 32, and the liquid is pushed up toward 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 the accuracy of the measurement result, in a preferred embodiment, the first detection probe 491 and the second detection probe 492 are respectively disposed at positions close to the middle in the extending direction of the second air duct 32. Further, the first detecting probe 491 and the second detecting probe 492 can be respectively disposed at two 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 detecting result can be improved.

In one embodiment, the first 491 and second 492 detection probes may be located between the splash plate 48 and the second air duct inlet 320. The bottom ends of the first 491 and second 492 probes are disposed at the position of a predetermined water level line. Specifically, the first 491 and second 492 detection probes can be attached to the top of the tank and extend downward.

In one embodiment, the sidewall of the housing is provided with a receiving groove 490 offset from the air duct, and the receiving groove 490 may be provided on the sidewall of the waste water tank extending from the second air duct inlet to the second air duct outlet, and 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 holding groove 490. The holding groove 490 may be provided in a groove-like structure or a tubular structure and extends in a height direction of the side wall of the case, the holding groove 490 communicates with the second duct 32, and the liquid in the water tank can enter the holding groove 490.

In one embodiment, only one receiving groove 490 is provided, one of the first and second detection probes 491, 492 is provided in the receiving groove 490, or both the first and second detection probes 491, 492 are provided in the receiving groove 490. In another embodiment, two receiving grooves 490 are provided, one of the two receiving grooves 490 having the first sensing probe 491 provided therein and the other having the second sensing probe 492 provided therein.

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

Since the triggering of the water level signal requires both the 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 those skilled in the art to place both probes in the receiving slot of the offset air chute. For example, the inner wall of the housing has a receiving groove on each of the left and right sides, and the first detecting probe 491 and the second detecting probe 492 are respectively disposed in the receiving grooves.

The liquid stored in the inner cavity of the water tank is sewage generated by cleaning equipment in the cleaning work, and solid impurities are doped in the sewage. In some embodiments, a gap is left between at least one of the first 491 and second 492 detection probes and a sidewall of the housing. The inner wall of the water tank is in a wet state, if solid impurities are mixed in liquid in the water tank, the solid impurities may be clamped between the first detection probe 491, the second detection probe 492 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 this 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 tank body, and solid impurities can be prevented from being caught between at least one of the first detection probe 491 and the second detection probe 492, thereby preventing conduction of the first detection probe 491 and the second detection probe 492 due to the solid impurities.

The bottom ends of the first detecting probe 491 and the second detecting probe 492 may be flush with the predetermined water level line, or one of them may be flush with the predetermined water level line and the other is lower than the predetermined water level line. Since the first detection probe 491 and the second detection probe 492 are conducted when contacting the liquid in the tank at the same time, the triggering positions of the first detection probe 491 and the second detection probe 492 depend on the higher bottom end, and the higher bottom end can be conducted and triggered when the liquid level reaches the lower end of the first detection probe 491 and the second detection probe 492.

Because the liquid level in the box body is pushed up to the second air duct outlet under the action of the air flow in the air duct, when the liquid level at the positions of the first detection probe 491 and the second detection probe 492 is pushed up. In some embodiments, one of the first and second detection probes 491, 492 has a bottom end not higher than the predetermined water level line, and the other has a bottom end higher than the predetermined water level line, wherein the bottom end is not higher than the predetermined water level line and the other is higher than the predetermined water level line, so as to ensure the contact with the liquid, and the bottom end of the other probe is higher than the predetermined water level line, thereby eliminating the problem that the liquid triggers the predetermined water level when the water level is pushed up. Only when the water level in the water tank really reaches the preset water level, the pushed-up water level can touch the probe under the action of the air flow or during walking, and therefore the reminding signal of the preset water level is triggered.

The fan subassembly can stop working based on the detected signal of the water level detection device of the water tank, and the water level of the sewage is prevented from exceeding the preset water level line and entering the fan subassembly.

Floating and water accumulation preventing structure

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

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

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

When meeting the barrier, the wind power of the inlet of the first air duct 31 is insufficient, so that the roller 20 and the wiper plate 93 move relatively to be separated from each other, water stains can be prevented from being scraped from the roller 20 by the wiper plate 93, and therefore, sewage cannot be left on the working surface.

In one embodiment, the roller 20 may be configured to move relative to the machine body 1, the wiper plate 93 may be configured to be relatively fixed to the machine body 1, and the roller 20 moves away from the wiper plate 93 when an obstacle is encountered, for example, as described in embodiment 1, the roller assembly 2 is rotatably connected to the machine body 1, and when an obstacle is encountered, the roller assembly 2 is configured to move away from the wiper plate 93 so that the wiper plate 93 moves away from the roller 20 and sewage on the roller 20 is not scraped off. In another embodiment, the drum 20 is fixed with respect to the machine body 1, and the wiper plate 93 is movable with respect to the machine body 1, such that the wiper plate 93 moves away from the drum 20 when an obstacle is encountered.

The movement of the drum 20 or the wiper plate 93 may be realized by a driving mechanism, and a person skilled in the art may set the driving mechanism based on the prior art, such as a motor, a transmission shaft, a gear assembly, a connecting rod, etc., and the movement may be a rotation, an oscillation, a linear movement, etc., and the driving mechanism is not particularly limited in this embodiment.

In one embodiment provided by the present disclosure, as shown in fig. 8, the body 1 may be configured to include a floating portion 11-a and a fixed portion 11-B, and the floating portion 11-a and the fixed portion 11-B are hinged together by a hinge shaft. The floating portion 11-a can rotate up and down about the hinge axis 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 maintain contact with the work surface under the influence of its own weight and the weight of the float 11-a. The floating portion 11-a is configured to rotate with respect to the fixed portion 11-B when encountering an obstacle, so that the drum 20 is separated from the wiper plate 93.

The floating portion 11-a can be rotated in various 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 resisting force of an obstacle, for example, a door sill, and the roller 20 is lifted upward when passing the door sill, thereby rotating the floating portion 11-A upward relative to the fixed portion 11-B.

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

In a further embodiment, an elastic prestressing means is provided between the floating portion 11-a and the fixed portion 11-B, said floating portion 11-a being configured to be prestressed against the work surface by the elastic prestressing means.

In one embodiment, the wiper plate 93 may be movably connected to the machine body 1, and further include a driving mechanism configured to drive the wiper plate 93 to move away from the drum 20. Specifically, the wiper plate 93 is movably connected to the machine body 1 through a matching structure of a gear and a rack, the wiper plate 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 plate 93 is driven to move.

In this embodiment, when the machine body 1 encounters an obstacle, the rotation speed of the drum 20 can be reduced, and after the rotation speed of the drum 20 is reduced, the wiper plate 93 can be prevented from wiping off the sewage on the drum 20, so that the sewage is prevented from remaining on the working surface.

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

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

The recognition device can send the obtained detection signal of the front obstacle to the control unit, the control unit sends a control signal to the driving mechanism after receiving the detection signal, and the driving mechanism drives the roller 20 and the wiper plate 93 to move relatively after receiving the control signal, so that the roller 20 and the wiper plate 93 are separated.

In one embodiment, the control unit sends a control signal to the driving mechanism after receiving a detection signal of the front obstacle obtained by the recognition device; after the driving mechanism receives the control signal, the driving roller 20 and the wiper plate 93 move relatively to each other, so that the roller 20 is separated from the wiper plate 93, thereby preventing the sewage from being scraped. The driving mechanism may drive the floating portion 11-a to move away from the wiper plate 93, or the driving mechanism may drive the wiper plate 93 to move away 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, so as to prevent the scraping plate 93 from scraping the contaminated water on the drum 20.

In an embodiment of the present disclosure, referring to fig. 27, there are also provided two drop sensors 14, where the two drop sensors 14 are respectively disposed at the bottom of the machine body 1 and located at the front end of the drum 20, and the drop sensors 14 can be used to detect whether there is a front drop, for example, after moving to a step position, the drop sensors 14 can timely detect that there is a front drop, and then the robot should be controlled to stop at this time, or move backwards, so as to avoid the robot dropping 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:

and S1000, 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.

The machine body 1 meets an obstacle in front in the process of running on a working surface, 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 drive mechanism based on the obstacle detection signal transmitted from the recognition device.

In step S1000, the control unit may control the speed of the drum to be reduced to 0-150 rpm after receiving the detection signal of the front obstacle obtained by the recognition device. In the case of a slow drum rotation speed, the wiping blade scrapes less sewage or cannot scrape the sewage. At this time, the driving mechanism controlled by the control unit is a driving assembly connected with the roller.

And S2000, after the driving mechanism receives the control signal, the driving mechanism drives the roller and the wiper blade to move relatively, so that the roller is separated 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 is separated from the wiper plate 93 on the fixed part 11-B; the driving mechanism may directly drive the wiper plate 93 to move, so that the wiper plate 93 is separated from the drum 20.

In step S2000, the driving mechanism drives the floating portion to move away from the wiper blade; alternatively, the driving mechanism drives the wiper blade to move away from the drum.

The present disclosure also provides a cleaning system including a cleaning apparatus having a cleaning device disposed thereon, the cleaning device configured to clean a work surface, and a base station. Cleaning device can produce sewage at clean in-process, and cleaning device can extract the sewage behind its washing working face to it remains on the working face to avoid sewage. The cleaning device may be a self-moving robot or a handheld device or the like, which currently has a washing function, for example: a hand-held washer, a self-moving cleaning robot as described in the above embodiments, or other household or commercial cleaning appliance such as a wet-mopping vacuum cleaner. The cleaning apparatus further includes an air duct system and a sewage tank, wherein the sewage tank is configured to contain sewage after the cleaning of the working surface, the air duct system is communicated with the sewage tank, and the air duct system is configured to draw the sewage after the cleaning of the working surface by the cleaning device into the sewage tank. After cleaning device extracts sewage, inside can remain the water stain, is difficult to direct clearance moreover, if not dry in time, bacterium can breed in cleaning device inside, produces the peculiar smell.

The base station can integrate functions of charging, dust collection, drainage, water replenishing, drying and the like, and can charge the self-moving robot, remove dirt and sewage, replenish cleaning solution, dry and the like. When the water level detection device detects that the water level of the sewage tank 4 reaches the maximum value, the control unit can control the machine body 1 to return to the base station, and sewage in the sewage tank 4 is discharged to the base station.

The basic station includes the basic station body, and the basic station body has the chamber that holds that is used for holding cleaning device, and this internal air-dry wind channel that still is provided with of basic station can blow to holding the intracavity and air-dry the air current. The cleaning equipment enters the accommodating cavity of the base station after the cleaning work is suspended or finished, and drying is carried out through air drying airflow. The air duct system of the cleaning device is configured to suck the air drying airflow sent by the air drying system, and the residual water stains in the cleaning device can be dried through the air drying airflow.

The containing cavity of the base station can be arranged at the top, the middle part or the 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 disclosure, the cleaning device is a handheld cleaner, the user needs the handheld device to perform cleaning work, and the receiving cavity can be arranged at the top of the base station body so that the user can conveniently take and place the handheld cleaner from the top of the base station body. In another embodiment of the present disclosure, the cleaning device is the self-moving cleaning robot described above, which can walk on the ground by itself to clean the ground, and the accommodating cavity may be disposed at the bottom of the base station body, so that the self-moving robot can drive into the accommodating cavity from the ground or walk through a slope to the accommodating cavity at a certain height.

Fig. 29 is a schematic diagram of the overall structure of the cleaning system in one embodiment, and in the embodiment shown in fig. 29, the cleaning device a of the cleaning system is the self-moving cleaning robot in the above-mentioned embodiment, the accommodating cavity 1211 is arranged at the bottom of the base station body 121, the opening of the accommodating cavity 1211 is arranged at the side or front of the base station body 121, and the cleaning device a can enter into the accommodating cavity 1211 of the base station from the opening.

The bottom of the receiving chamber 1211, which is not flush with the floor, is shown in fig. 29 and 30 at a certain height from the floor, and a slope may be provided at the opening of the receiving chamber 1211, and the slope extends from the opening of the receiving chamber 1211 to the floor, so that the cleaning device a can be driven into the receiving chamber 1211 along the slope or moved away from the receiving chamber 1211 along the slope.

Fig. 30 and 31 are schematic structural views of a base station of the cleaning system in an embodiment, the seasoning system 122 forms an air outlet 1221 in the accommodating cavity 1211 of the base station B, and the seasoning system blows seasoning air flow into the accommodating cavity 1211 through the air outlet. The air outlet is configured to blow an air-drying air flow towards the cleaning means of the cleaning device a located in the accommodation chamber 1211 to dry the cleaning means; when the air duct system of the cleaning device A is opened, the air drying airflow blown out from the air outlet is sucked into the air duct system, so that the air duct system, the sewage tank and other internal components of the cleaning device A can be dried.

In detail, the direction of the air outlet should be close to and towards the cleaning device, and the number of the air outlets can be provided in plurality and distributed around the cleaning device, so that the stable drying efficiency of the cleaning device is improved. The cleaning device may be, but is not limited to, a rag, a roller, a cleaning brush, a wiper strip, 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 along a transverse direction (an extending direction of the cleaning device) and spaced at a position corresponding to the cleaning device.

In one embodiment, referring to fig. 30, a groove 1212 is provided at the bottom of the receiving cavity 1211 of the base station B, the groove 1212 is used for cooperating with the cleaning device, and after the cleaning device a enters the receiving cavity 1211, at least a part of the cleaning device can be fitted into the groove 1212, so as to limit the cleaning device. The air outlet 1221 can be arranged on the side wall of the groove 1212, and can be opposite to the cleaning device to blow air drying airflow to the cleaning device. Or on the side wall of the accommodating cavity 1211, as long as it is ensured that the air outlet 1221 of the base station B can be aligned with the cleaning device of the cleaning apparatus a after the cleaning apparatus a enters the base station B.

Due to the recess 1212 at the bottom of the receiving cavity 1211, when the cleaning device a enters the receiving cavity 1211 of the base station, the cleaning device can be engaged with the recess 1212 to position the cleaning device a to prevent the cleaning device a from shaking or sliding out of the receiving cavity 1211 of the base station B.

In some embodiments of the present disclosure, as shown in fig. 31, the seasoning system 122 includes a seasoning air duct 1222, a base station fan 1223, and a heating device 1224. The air drying duct 1222 communicates with the air outlet 1221, 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 drying duct 1222 to provide a heat source to the air drying duct 1222 to heat the air flow in the air drying duct 1222. The air flow in the seasoning system 1222 is configured to be heated by the heating device 1224 to form a seasoning air flow, and to be blown out from the air outlet 1221, and then to dry the cleaning device.

The air drying duct 1222 may be a pipe or a duct formed by a cavity opened 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 airing duct 1222 may be formed with a plurality of branches to form a plurality of air outlets in the accommodating chamber 1211. Or, one air outlet 1221 is provided, and the ends of the air drying ducts 1222 of multiple channels are connected to the same air outlet 1221. The structural arrangement of the air drying duct 1222 and the air outlet 1221 is only an example and is not a limitation to the present disclosure, and those skilled in the art can arrange the air drying duct 1222 and the air outlet 1221 according to the actual structural arrangement or assembly requirement.

The base station fan 1223 may be, but is not limited to, an axial flow fan, a centrifugal fan, or the like, and may be fixedly installed on the base station body 121. The heating device 1224 includes, but is not limited to, a heating wire, a heating sheet, a heat exchange tube, etc., and the air flowing in the air duct passes through the heating device 1224 and then is heated up to form an air drying air flow for supplying to the air outlet, and the temperature of the air drying air flow may 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 numbers, and will not be described in detail here.

Referring to fig. 31 and 32, the base station B may have the opening direction of the accommodating cavity 1211 as the front side, the air drying system 122 may be disposed on the rear side of the base station body 121, and the end of the air drying duct 1222 extends from the rear side of the base station body 121 into the accommodating cavity 1211 to communicate with the air outlet 1221 in the accommodating cavity 1211, or the air outlet 1221 is formed in the accommodating cavity 1211.

A clear water tank can be further arranged in the cleaning equipment A, and the clear water tank is used for storing clear water, cleaning agents and other cleaning solutions. Cleaning device A is at the in-process of clean working face, and the clear water tank can provide the cleaning solution for cleaning device, improves cleaning device's cleaning efficiency. After the cleaning device wipes the ground, the cleaning solution forms sewage. The air duct system of the cleaning device A is close to the cleaning device A 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 disposed on the base station B, sewage of the sewage tank of the cleaning device a can be drawn into the base station B through the waterway assembly 123, and cleaning liquid can be replenished to the clean water tank of the cleaning device a. After the cleaning device a enters the accommodating cavity 1211 of the base station B, the waterway assembly 123 of the base station B can draw the sewage in the sewage tank through the water outlet of the cleaning device a and replenish the clean water tank with the cleaning liquid through the water inlet of the cleaning device a.

In one embodiment, referring to fig. 33, a sewage bucket 124 and a clean water bucket 125 may be disposed in the base station B, wherein the sewage bucket 124 and the clean water bucket 125 are connected to the waterway assembly 123. In addition, still be provided with power device in the basic station B, power device can be the water pump or can provide the motor of negative pressure through providing the negative pressure to water route subassembly 123 to can extract the sewage in the sewage case, to clear water tank pump sending cleaning solution.

For example, in one embodiment of the present disclosure, a vacuum negative pressure port may be further disposed on the slop pail 124, and the vacuum negative pressure port may communicate the slop pail 124 and the waterway assembly 123 through a pipeline, when the waterway assembly 123 communicates with the slop pail of the cleaning device a, a negative pressure may be formed in the slop pail 124 through the vacuum negative pressure port by a motor, so as to extract the slop water stored in the slop pail of the cleaning device a, and the slop water can smoothly enter the slop pail 124.

In order to enable the cleaning device a to smoothly enter the accommodating cavity 1211 of the base station B, in some embodiments, referring to fig. 29 and fig. 30, the open end of the accommodating cavity 1211 has a flaring structure 1213, and left and right sides of the open end of the accommodating cavity 1211 are inclined outward, for example, an inclination angle greater than 5 ° may be provided, so that the cleaning device a can be guided to smoothly enter the accommodating cavity 1211.

In other embodiments, guide wheels 1214 may be disposed on the inner walls of the containing cavity 1211 at opposite sides, the rotation axis of the guide wheels 1214 is perpendicular to the moving direction of the cleaning device a entering the containing cavity 1211, and the side walls are in rolling fit with the guide wheels 1214 when the cleaning device a enters the containing cavity 1211. The guide wheels 1214 can guide the cleaning apparatus a, and also can reduce frictional resistance with the cleaning apparatus a.

Furthermore, a positioning structure may be disposed in the receiving cavity 1211 to define the position of the cleaning device a. The locating structure may be engaged with a portion of the cleaning device a, such as a corner of the cleaning device a, a castor wheel or drive wheel for the cleaning device to travel, and the like. The positioning structure includes, but is not limited to, a slot, a step, a bump, etc.

In one embodiment, as shown in fig. 30, the positioning structure is a positioning groove 1215, and the positioning groove 1215 may be provided in two numbers, respectively corresponding to the number of the driving wheels of the cleaning device a. The detent 1215 can be formed in the bottom of the receiving cavity 1211 and a drive wheel on the bottom of the receiving cavity 1211 can engage the detent 1215 to position the cleaning device a so that the waterway assembly 123 is precisely aligned with the drain and inlet ports of the cleaning device a when the cleaning device a is received in the receiving cavity 1211.

The overall shape of the cleaning device a may be configured as a circle, a rectangle, a triangle, etc., which is not limited in this disclosure. The cleaning device a may enter the accommodating chamber 1211 by moving forward or backward.

In a specific embodiment of the present disclosure, referring to fig. 29, the cleaning device a has a D-shape as a whole, which includes a rectangular structure at a front end and a curved structure at a rear end thereof, with reference to the advancing direction of the cleaning device a. The cleaning device a enters the receiving space 1211 of the base station B in an advancing manner, i.e. the rectangular structure at the front end enters the receiving space first, unlike the conventional method of moving the curved surface into the receiving space first in a retracting manner. The flared structure provided by 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 accommodating cavity.

In general, a collision plate sensor structure is disposed at the front end of the self-moving cleaning robot, and when the self-moving cleaning robot collides with an obstacle, the collision plate sensor is triggered, so that the self-moving cleaning robot can be controlled to retreat to avoid the obstacle in front. After the mobile cleaning robot is in the forward mode, the signal of the striking plate sensor needs to be closed or shielded.

For example, in one embodiment of the present disclosure, the charging contact of the self-moving cleaning robot is disposed on the striking plate structure, and when the self-moving cleaning robot returns to the station for charging, the charging contact on the striking plate structure needs to be butted with the corresponding charging contact on the base station. At this time, the signal of the striking plate sensor should be turned off to prevent the malfunction such as the back-off of the self-moving cleaning robot.

As described above, after the cleaning device a enters the accommodating cavity of the base station B, the cleaning device a can be charged, the sewage stored in the cleaning device a can be pumped out, the clean water tank is filled with water, and the cleaning device of the cleaning device a is cleaned.

To this end, the present disclosure also provides a cleaning method implemented by the above cleaning system, with reference to fig. 34 and 35, including the following steps:

and S1000, the cleaning equipment enters an accommodating cavity of the base station to clean the cleaning device.

When the work of the cleaning equipment is completed, the cleaning equipment enters the accommodating cavity of the base station, corresponding operation can be performed according to actual needs, for example, when the power shortage of the cleaning equipment is serious, the cleaning equipment can be charged preferentially, and then cleaning work is performed.

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

For example, when the sewage in the sewage tank of the cleaning device is more and reaches the designed water full degree, the sewage of the cleaning device should be firstly pumped out through a sewage discharge pipe arranged on the base station. When the clean water tank of the cleaning equipment contains a small amount of water, the clean water tank of the cleaning equipment is 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 how the current states of the cleaning device in the clean water tank and the sewage tank are, the sewage in the sewage tank is extracted first, and the clean water tank is supplemented with water, so that the cleaning device can be cleaned subsequently.

When the washing mode is turned on, water is supplied to the cleaning device of the cleaning apparatus, and the cleaning device is turned on to wash the cleaning device. Wherein, can supply water to the cleaning device through the clean water tank of cleaning equipment self to wash cleaning device. It is also possible to supply water to the cleaning device through a clear water tank of the base station to wash the cleaning device. Or the two supplies water to the cleaning device at the same time, and the cleaning device can complete the cleaning work of the cleaning device in the self-rotating process.

In one embodiment of the disclosure, the cleaning device is not turned on during the cleaning process, i.e. the air duct system of the cleaning device is not operated, so that the water supplied to the cleaning device falls into the recess of the base station via the cleaning device, thereby immersing part of the cleaning device into the water in the recess.

For example, when the cleaning apparatus is a self-moving cleaning robot of the present disclosure, water on the cleaning apparatus may be scraped off by the wiper blade during rotation of the cleaning apparatus, and the scraped water may fall into the groove fitted with the cleaning apparatus. When a certain amount of water is deposited in the grooves, the cleaning device is caused to assume a state of immersion in the water. When the cleaning device continues to rotate, the cleaning device can be cleaned by water in the groove.

Step S2000: the cleaning equipment pumps the cleaned sewage into the sewage tank through the air duct system of the cleaning equipment.

And after the cleaning device finishes cleaning, opening a main fan of the cleaning equipment, and pumping the cleaned sewage into a sewage tank for storage through an air duct system of the cleaning equipment. After the cleaning equipment enters the base station, the soft glue at the inlet end of the air duct system can form a seal with the bottom of the containing cavity of the base station, so that water in the cleaning device and the groove can be sucked into the sewage tank through the air duct system.

When the cleaning device is the self-moving cleaning robot, water scraped by the water scraping plate of the cleaning device can be directly sucked into the sewage tank by the air duct system. After water is scraped, the cleaning device can absorb water in the groove, the water absorbed on the cleaning device is continuously scraped by the water scraping plate and is sucked into the sewage tank by the air duct system, and the cleaning device and the water in the groove can be completely sucked into the sewage tank by reciprocating.

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

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

And opening an air drying system of the base station, and blowing heated air drying airflow to the cleaning device through an air drying air duct by a base station fan so as to dry the cleaning device. In addition, at the moment, the main fan of the cleaning equipment is opened, and air drying airflow blown out of the air drying air channel can be sucked through the air channel system of the cleaning equipment so as to dry the air channel system of the cleaning equipment.

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 the 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, a low power mode may be entered, and the drying airflow from the base station is sucked into the entire air duct to gradually dry the air duct.

In one embodiment of the present disclosure, before step S3000, a step of pumping sewage in the sewage tank of the cleaning device to a base station sewage tank is further included. This makes also can air-dry the sewage case, avoids the production of bacterium and peculiar smell in the sewage case.

When the cleaning device is the self-moving cleaning robot, the air-dried airflow sucked from the first air duct inlet can flow through the first air duct, the sewage tank and the third air duct so as to dry the whole air duct system.

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

Application scenario 1

The control system of the self-moving floor washing robot starts to work after receiving a working instruction, the self-moving floor washing 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, the cleaning solution in the clean water tank is sprayed to the upper part of the roller by the spray head, the cleaning solution on the roller is uniformly spread by the water homogenizing strip, the cleaning effect of the roller is improved, the roller rotates to the position of the water scraping plate after wiping the ground, the water stains and the dirt on the surface of the roller are scraped by the water scraping plate, and falls into the inlet of the first air duct, the edge of the inlet of the first air duct, the roller, the water scraping plate and the ground form a closed space, the fan assembly forms negative pressure in the air duct, thereby water stain and dirt that will be scraped by the wiper blade through first wind channel entry directly inhale the sewage case, sewage can not drop subaerially, more can not pile up on the working face, has improved clean and dirty effect of inhaling greatly.

The solid particles sucked in the air duct enter the sewage tank, are filtered by the dust collecting device and are retained in the dust collecting device. The air and the liquid sucked by the air channel are separated in the sewage tank, wherein the liquid is reserved at the bottom of the sewage tank, the air enters the second channel of the second air channel and uniformly flows to the outlet of the second air channel 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 the over-fast local air flow is avoided. The air current gets into the third wind channel from the second wind channel export, and the fan subassembly blows the gas in the third wind channel to ground from the organism bottom to the evaporation rate of remaining water stain on the ground is accelerated.

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 a 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 firstly pushed to move from the first position to the second position, and the roller cover plate is assembled on the roller bracket at the moment. After loosening the slider, the slider recovers to the primary importance by the second place under resilient means's effort, and the slider drives the locking piece motion on the cylinder apron, makes the block portion of locking piece can cooperate together with the locking draw-in groove on the cylinder support to be in the same place cylinder apron and cylinder support block, the cylinder is restricted between cylinder support and cylinder apron.

When the roller is disassembled, the sliding block is pushed to move from the first position to the second position, 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 rotating friction to perform cleaning work, the water scraping plate can scrape dirt and sewage on the roller, and after the self-moving robot is used for a period of time, the surface of the roller is worn due to consumption. The roller component is rotatably connected to the machine body through the hinge shaft, so that the roller component keeps the contact between the roller and the ground under the action of gravity, namely the roller component is arranged in a floating mode and can rotate up and down relative to the machine body.

Wear and tear appear at long-time working process from mobile robot, the cylinder, perhaps when subaerial unevenness appearing, the cylinder can laminate the ground roll all the time under the action of gravity to avoid appearing the gap between cylinder and the ground, can keep sealed all the time between first wind channel entry and ground from this, avoid wind loss in the wind channel, lead to first wind channel can't be with the sewage that the wiper struck off siphons away. In addition, the roller is always in 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, a first air channel outlet on the machine body is in butt joint with a second air channel inlet on the sewage tank, and a jacking part on the machine body can push a first gate at the second air channel inlet open so as to connect the first air channel and the second air channel; a third air channel inlet on the machine body is in butt joint with a second air channel outlet on the sewage tank, negative pressure is formed in the third air channel after a fan assembly on the machine body is opened, and a second gate which is out of the second air channel can be opened under the action of the negative pressure so as to communicate the second air channel with the third air channel, so that the first air channel, the second air channel and the third air channel are communicated with each other, 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, and liquid in the sewage tank is prevented from overflowing through the second air duct inlet or the second air duct outlet.

Application scenario 5

The dust collecting device in the sewage case needs to be cleaned on time, and during disassembly, the cover plate at the top of the sewage case is firstly 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 to the first position from the second position under the action of the torsion spring, so that the mounting position of the cover plate is occupied, and the cover plate cannot be mounted at the moment. Can avoid the user to forget installation dust collecting device and direct mount apron like this, cause the unable collection that obtains of solid particulate matter in the second wind channel, the robot work even under the condition that does not install the apron causes the unable sealed that obtains in second wind channel, wind channel dirt absorbing effect greatly reduced.

Only when packing into dust collecting device, dust collecting device's the portion of exerting pressure can drive prevents that slow-witted mechanism is pressed the portion motion, makes the cam rotate to the second position from the primary importance, dodges 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 sealed in second wind channel.

Application scenario 6

The self-moving robot walks forward on the ground when working, cleans ground through cleaning device, and the fan from the self-moving robot provides the negative pressure to the wind channel, and the sewage that produces behind the clean ground is inhaled in the first wind channel by the air current, then gets into in the water tank inner chamber through second wind channel entry. The sewage and the air flow are separated in the water tank, the sewage is stored in the inner cavity of the water tank, and the air flow is discharged from the outlet of the second air duct. Under the action of the airflow, the sewage has a tendency of being pushed to the outlet of the second air duct; in addition, the second air duct inlet is close to the front end of the water tank, the second air duct outlet is close to the rear end of the water tank, and under the working conditions of starting, accelerating and the like of the self-moving robot, sewage can also generate a trend of being pushed to the second air duct outlet under the action of inertia, so that the sewage is easily sucked into the second air duct outlet by air flow; or cause the water level detection apparatus to be erroneously 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 inner cavity of the water tank sucks sewage carrying liquid through the second air channel inlet, the sewage and the air flow are separated in the water tank, the sewage is stored in the inner cavity of the water tank, and the air flow is discharged from the second air channel outlet. Sewage is stored in the inner cavity of the water tank, and a water level detection device arranged in the inner cavity of the water tank can detect the height of the water level. After the sewage water level reached to predetermine the water level line, water level detection device's first test probe and second test probe can switch on through sewage to produce detected signal, the fan subassembly prevents that the water level of sewage is too high and is inhaled and get into the fan subassembly based on detected signal stop work.

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 one 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-up water level can touch the detection probes with the bottom ends higher than the preset water level line under the action of robot walking or the air duct, and therefore the two detection probes can send out electric signals of water fullness.

Application scenario 8

When the self-moving floor washing robot performs cleaning work on the ground, the recognition device at the front part of the machine body detects obstacles on the ground, and when the obstacles on the ground are detected, the recognition device sends detection signals to the control system. The control system can control the water scraping plate to leave the roller based on the control signal, and stops scraping sewage on the roller so as to prevent water stains and dirt at the inlet of the first air channel from being remained on the ground when the roller is over-barrier.

In another application scenario, when the ground is detected to be obstructed, the control system can control the rotary drum to reduce the rotating speed based on the control signal so as to greatly reduce the sewage amount scraped from the rotary drum by the water scraping plate, and thus, water stains and dirt can be prevented from remaining on the ground.

Application scenario 9

After the cleaning equipment finishes cleaning and enters the containing cavity of the base station, a drain pipe and a water injection pipe on the base station are respectively butted with a water outlet and a water inlet on the cleaning equipment so as to extract sewage in the sewage tank of the cleaning equipment to a sewage bucket of the base station for treatment, and the clean water tank of the cleaning equipment is replenished with water through the 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 or/and the clean water barrel of the base station, and the cleaning device is cleaned. After the cleaning is finished, a main fan of the cleaning device is turned on, the cleaned sewage is extracted into the sewage tank, and the sewage in the sewage tank is extracted into a sewage bucket of the base station again for storage.

And opening the base station fan to enable the air drying air channel of the base station to blow out air drying air flow to the cleaning device of the cleaning equipment, and sucking the blown air drying air flow by the air channel system of the cleaning equipment, so that the air channel system and the sewage tank of the cleaning equipment are dried.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology 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 self-moving cleaning robot is characterized in that the robot comprises a machine body and a cleaning device arranged on the machine body,

a cleaning device configured to clean a work surface;

a fan assembly having a third air duct;

2. The self-moving cleaning robot of claim 1, wherein the cleaning device is disposed proximate a front portion of the body and the fan assembly is disposed proximate a rear portion of the body.

3. The self-propelled cleaning robot of claim 2, further comprising a drive wheel disposed on the body, the drive wheel being disposed rearward of the cleaning device.

4. A self-moving cleaning robot as claimed in claim 3, wherein the bottom of the body is provided with two universal wheels arranged at a position on the body between the cleaning device and the drive wheels and distributed on opposite sides of the body.

5. The self-moving cleaning robot as claimed in claim 1, wherein a clean water tank is further provided on the body, the clean water tank being configured to supply cleaning liquid to the cleaning device.

6. The self-propelled cleaning robot of claim 1, wherein a dust collection device is disposed within the sump tank, the dust collection device being configured to filter particulate matter from moisture entering the second air duct.

7. The self-moving cleaning robot as claimed in claim 6, wherein the sewage tank is provided therein with a receiving chamber for mounting the dust collecting device, and a cover plate fitted at an opening position of the receiving chamber, the receiving chamber being provided therein with a fool-proof mechanism; the fool-proof mechanism is provided with a first position and a second position;

8. The self-propelled cleaning robot of claim 7 wherein the fool-proof mechanism includes a cam rotatably connected to the sump and a torsion spring biasing the cam in a first position;

9. The self-propelled cleaning robot of claim 1, wherein the waste tank is provided with a first gate pre-pressed at the inlet of the second air duct;

10. The self-propelled cleaning robot of claim 1, wherein the waste tank includes an upper housing, a middle housing, and a lower housing that are sequentially snapped together; the middle shell is of a hollow structure, the edge of the middle shell is provided with a groove, and the groove of the middle shell and the upper shell are enclosed together to form a clear water tank; the upper shell, the middle shell and the lower shell enclose the sewage tank.

11. The self-propelled cleaning robot of claim 10, wherein another groove is disposed at an edge of the upper housing, and the groove of the upper housing and the groove of the middle housing are butted together to jointly enclose the clean water tank.

12. The self-moving cleaning robot as claimed in claim 10, wherein a blower receiving chamber having an open end at a bottom of the lower housing is provided at the lower housing, and the blower receiving chamber passes through the middle housing and extends in a direction of the upper housing; the top that the fan holds the chamber is provided with be used for with the second wind channel export of third wind channel intercommunication, the fan holds the chamber all around in the sewage case encloses the composition annular wind channel in second wind channel.

13. The self-propelled cleaning robot of claim 12, wherein the lower housing, the blower receiving cavity, the middle housing and the upper housing enclose the waste tank.

14. The self-propelled cleaning robot of claim 12, wherein a wind shield is provided in the waste tank; the bottom of the wind shielding mechanism is lower than the top of the fan accommodating cavity; the water vapor entering the second channel moves upwards after bypassing the bottom of the wind shielding mechanism and enters the second air duct outlet at the top of the fan accommodating cavity.

15. The self-propelled cleaning robot of claim 12, wherein the second air duct outlet is provided with a second shutter configured to elastically close the second air duct outlet and to open the second air duct outlet under the negative pressure created by the fan assembly to communicate the second air duct with a third air duct.

16. The self-propelled cleaning robot of claim 1, wherein the cleaning device is a roller assembly attached to the body.

17. The self-propelled cleaning robot of claim 16 wherein the roller assembly includes a roller bracket and a roller mounted on the roller bracket, the roller bracket being pivotally coupled to the housing by a hinge axis; the roller support is configured to maintain the roller in contact with the work surface under the influence of its own weight.

18. The self-propelled cleaning robot of claim 17, wherein the roller support is further provided with a limit buckle extending therefrom, and a limit slot is provided at a corresponding position on the body for engaging with the limit buckle; the limiting clamping groove is used for limiting the rotation angle of the roller bracket relative to the machine body.

19. The self-propelled cleaning robot of claim 17, wherein a spray head is disposed on the body, the spray head configured to spray water onto the cylinder.

20. The self-propelled cleaning robot of claim 19, wherein a wiper blade is disposed on the body, the wiper blade configured to engage in contact with the cylinder.

21. The self-propelled cleaning robot of claim 20, wherein the wiper blade is disposed on the body at a position above the first air path inlet and participates in enclosing an upper region of the first air path inlet.

22. The self-propelled cleaning robot of claim 21, wherein one end of the roller is provided with a pressing block, the pressing block is pre-pressed at the end position of the roller and is in surface contact with the corresponding position of the machine body.

23. The self-propelled cleaning robot of claim 22, wherein a lower region of the first air duct inlet is configured to extend in a direction of the working surface and to enclose a sealing area with the wiper blade, the roller and the working surface.

24. The self-propelled cleaning robot of claim 20, wherein the roller and the wiper blade are configured such that when an obstacle is encountered, relative movement occurs between the roller and the wiper blade to disengage the roller from the wiper blade.

25. A cleaning system comprising the self-moving cleaning robot of any one of claims 1 to 24, further comprising a base station body having a receiving cavity, the base station body having an air drying system disposed therein;

the base station body has a receiving cavity configured to receive the self-moving cleaning robot, and a first air duct inlet of the self-moving cleaning robot is configured to draw an air drying airflow from the air drying system to dry the cleaning device.