Water absorption and dust pushing device for cleaning robot

Abstract

A water-absorbing dust pushing device for a cleaning robot comprises a bottom plate and a water-absorbing scraper holder, the water-absorbing scraper holder is arranged on a water-absorbing scraper framework, a steering engine for providing power for the water-absorbing scraper framework to ascend or descend is arranged on the bottom plate, a steering engine arm is arranged at the output end of the steering engine, the steering engine arm is connected with the water-absorbing scraper holder through a water-absorbing scraper guide cylinder, and the water-absorbing scraper holder is connected with the bottom plate through the water-absorbing scraper guide cylinder. At least two groups of water-absorbing scrabbling swing arms for preventing the water-absorbing scrabbling framework from swinging left and right are arranged between the water-absorbing scrabbling holder and the bottom plate, and each group of water-absorbing scrabbling swing arms at least comprise two water-absorbing scrabbling swing arms which are arranged in parallel; a water-absorbing raking rubber sheet is mounted on the water-absorbing raking framework, an inner cavity channel is arranged in the water-absorbing raking rubber sheet, the top of the inner cavity channel is connected with a water-absorbing raking pipe joint, the bottom of the inner cavity channel is provided with a water-absorbing port, and the water-absorbing raking pipe joint is connected with a sewage tank through a sewage-absorbing pipe. According to the cleaning robot, the cleaning robot can stably run on an uneven road surface, and the decontamination effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning robots, and particularly to a water-absorbing dust mop device for a cleaning robot. Background Art

[0002] In order to increase the scene application of the floor washing function of cleaning robots, many robot cleaners are equipped with a water-absorbing squeegee and a dust mop module. However, at present, the water-absorbing squeegee and dust mop module of cleaning robots have problems such as unstable operation on uneven roads, inconvenient installation, and inability to quickly replace the dust mop module, which leads to limitations in the use functions of cleaning robots. For example, the inability to quickly disassemble and assemble results in low work efficiency; the installation structure of the dust mop module is complex, the manufacturing cost is high, and it is easy to fall off after installation; the bottom cleaning effect does not meet the requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a water-absorbing dust mop device for a cleaning robot, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A water-absorbing dust mop device for a cleaning robot includes a bottom plate and a water-absorbing squeegee holder. The water-absorbing squeegee holder is arranged on a water-absorbing squeegee frame. A servo motor for providing power for the lifting or lowering movement of the water-absorbing squeegee frame is arranged on the bottom plate. A servo arm is arranged at the output end of the servo motor. The servo arm is connected to the water-absorbing squeegee holder through a water-absorbing squeegee guide tube. At least two groups of water-absorbing squeegee swing arms for preventing the left and right swing of the water-absorbing squeegee frame are arranged between the water-absorbing squeegee holder and the bottom plate. Each group of water-absorbing squeegee swing arms includes at least two parallel water-absorbing squeegee swing arms; A water-absorbing squeegee rubber is installed on the water-absorbing squeegee frame. An inner cavity channel is arranged inside the water-absorbing squeegee rubber. The top of the inner cavity channel is connected to a water-absorbing squeegee water pipe joint, and a water suction port is arranged at the bottom. The water-absorbing squeegee water pipe joint is connected to a sewage tank through a sewage suction pipe. After a vacuum pump forms a negative pressure in the sewage tank and the inner cavity channel of the water-absorbing squeegee rubber, the ground sewage is sucked into the sewage tank through the water-absorbing squeegee rubber and the water-absorbing squeegee water pipe joint; Both ends of the water suction squeegee skeleton are provided with limiting bosses, and pot magnets are arranged inside the limiting bosses. A dust mop cloth is sleeved on the dust mop skeleton, and a connecting column is arranged at the top. The dust mop cloth covers the bottom of the dust mop skeleton. A dust removing component is arranged on one side of the dust mop skeleton. The dust removing component includes a fixed top plate, the fixed top plate is installed on the water suction squeegee holder through a positioning component, a sliding bottom plate is arranged below, and a plurality of guiding columns are arranged between the fixed top plate and the sliding bottom plate. The lower ends of the guiding columns sequentially pass through the first guiding holes on the fixed top plate and the second guiding holes on the sliding bottom plate and then are connected with a limiting bottom plate, and a limiting top plate is connected at the top. A shock absorption spring is sleeved on the guiding column, and the upper and lower ends of the shock absorption spring respectively abut against the fixed top plate and the sliding bottom plate. A sewage discharge channel with a closed periphery is arranged on the sliding bottom plate. A dirt retaining plate is arranged on one side of the sewage discharge channel, and a dirt removing protrusion is arranged at the bottom on the other side. The upper and lower ends of the dirt retaining plate respectively extend out of the top and bottom of the sewage discharge channel. A receiving groove is arranged on the outer side of the sliding bottom plate.

[0005] Preferably, the bottom surface of the dirt retaining plate is higher than the bottom surface of the dirt removing protrusion, the top surface of the dirt retaining plate is higher than the top surface of the sewage discharge channel, and the bottom of the receiving groove is higher than the bottom of the dirt removing protrusion.

[0006] Preferably, spring washers are arranged between the limiting top plate and the fixed top plate and between the limiting bottom plate and the sliding bottom plate, and the spring washers are sleeved on the guiding columns.

[0007] Preferably, the positioning component includes a positioning bracket and a positioning boss arranged on the water suction squeegee holder. One end of the positioning bracket is connected to the fixed top plate, and the other end is arranged in a positioning groove on the positioning boss. The positioning bracket and the positioning boss are connected through a positioning bolt.

[0008] Preferably, a shock absorber is arranged between the bottom plate and the water suction squeegee holder, and the shock absorber is used to reduce the vibration received by the water suction squeegee skeleton during the up and down movement.

[0009] Preferably, when the water suction squeegee skeleton makes a lifting or lowering movement, two groups of water suction squeegee swing arms form a parallelogram structure.

[0010] Preferably, both ends of the water suction squeegee swing arm are rotatably installed on the water suction squeegee holder and the bottom plate through spherical plain bearings, and spring washers are arranged at the installation positions of the water suction squeegee swing arm and the water suction squeegee holder and between the water suction squeegee swing arm and the bottom plate.

[0011] Preferably, the pot magnet is installed on the limiting boss through a countersunk head screw, and the dust mop skeleton is connected to the connecting column through a first countersunk head screw.

[0012] Preferably, a magic tape is bonded to the bottom of the dust mop skeleton, and the dust mop cloth is fixed to the dust mop skeleton through the magic tape.

[0013] Preferably, the water-absorbing squeegee rubber is made of polyurethane material. An anti-static coating is provided on the surface of the water-absorbing squeegee rubber. A plurality of dirt removal grooves are provided at the bottom of the dust mop cloth. The dirt removal grooves are rectangular grooves and the distance between two adjacent dirt removal grooves is equal.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: During the water absorption task of the cleaning robot, the servo motor drives the servo arm to rotate, so that the water-absorbing squeegee swing arm drives the water-absorbing squeegee holder to descend along the water-absorbing squeegee guide tube, making the bottom surface of the water-absorbing squeegee rubber fit the ground. After the negative pressure is formed in the sewage tank and the inner cavity channel of the water-absorbing squeegee rubber through the vacuum pump, the ground sewage is sucked into the sewage tank through the water absorption port, the inner cavity channel and the water-absorbing squeegee water pipe joint of the water-absorbing squeegee rubber. During the movement of the water-absorbing squeegee rubber, a plurality of water-absorbing squeegee swing arms form a parallelogram mechanism, and under the guiding action of the water-absorbing squeegee guide tube, the water-absorbing squeegee rubber adapts to the ground undulation, and the shock absorber ensures the smoothness of the movement and ensures the continuity of sewage absorption; when performing the dust mopping task, first end the water absorption task, and then the servo motor drives the water-absorbing squeegee swing arm to lift the water-absorbing squeegee holder along the water-absorbing squeegee guide tube. Then, the connecting column on the dust mop frame is magnetically attracted to the pot magnet in the limit boss on the water-absorbing squeegee frame, and at the same time, the connecting column is inserted into the installation hole of the limit boss, which plays a role in increasing the connection strength of the dust mop frame, meets the friction between the dust mop cloth and the ground and reduces the impact force; when the dust mopping operation is completed, lift the water-absorbing squeegee frame, hold the left and right sides of the dust mop frame, and press down hard to separate the connecting column on the dust mop frame from the limit boss on the water-absorbing squeegee frame; through the magnetic attraction positioning of the pot magnet, quickly replace the dust mop cloth and then lower the dust mop frame to the working position. When the cleaning robot moves horizontally, the dust mop cloth frictively gathers dust; when performing the dust mopping task, first, the dust mop cloth performs primary dirt removal on the ground to complete the removal of most dirt. After a small part of the stubborn dirt becomes loose after being treated by the dust mop cloth, the dirt removal protrusion on the sliding bottom plate is in close contact with the ground under the action of the shock-absorbing spring and shovels the dirt. Under the action of the shock-absorbing spring, the dirt removal protrusion is in close contact with the ground to improve the thoroughness of dirt removal. The solid dirt shoveled gradually accumulates and increases on one side of the dirt removal protrusion and enters the receiving groove through the sewage discharge channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a first perspective view of a water-absorbing and dust mopping device for a cleaning robot according to an embodiment of the present invention; Figure 2 is a second perspective view of a water-absorbing and dust mopping device for a cleaning robot according to an embodiment of the present invention; Figure 3 is a third perspective view of a water-absorbing and dust mopping device for a cleaning robot according to an embodiment of the present invention; Figure 4 is a first perspective view of a dust removal component according to an embodiment of the present invention; Figure 5 It is a second perspective schematic diagram of the dust removal component in the embodiment of the present invention; Figure 6 It is an installation schematic diagram of the pot magnet in the embodiment of the present invention; Figure 7 It is a disassembly schematic diagram of the dust pushing cloth in the embodiment of the present invention; Figure 8 It is a structural schematic diagram of the dust pushing skeleton in the embodiment of the present invention; In the figure, 1 is the bottom plate, 2 is the water absorption squeegee holder, 3 is the water absorption squeegee skeleton, 4 is the servo motor, 5 is the servo arm, 6 is the water absorption squeegee guide cylinder, 7 is the water absorption squeegee swing arm, 8 is the water absorption squeegee rubber, 9 is the water absorption squeegee water pipe joint, 10 is the limiting boss, 11 is the pot magnet, 12 is the dust pushing skeleton, 13 is the dust pushing cloth, 14 is the connecting column, 15 is the fixed top plate, 16 is the sliding bottom plate, 17 is the guiding upright column, 18 is the limiting chassis, 19 is the limiting top plate, 20 is the shock absorption spring, 21 is the sewage discharge channel, 22 is the dirt blocking plate, 23 is the dirt removing protrusion, 24 is the accommodating groove, 25 is the positioning bracket, 26 is the positioning boss, 27 is the shock absorber, 28 is the countersunk head screw, 29 is the magic tape, 30 is the dirt removing groove, 31 is the first countersunk head screw. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figure 1-8 As shown in the figure, a water absorption and dust pushing device for a cleaning robot includes a bottom plate 1 and a water absorption squeegee holder 2. The water absorption squeegee holder 2 is arranged on the water absorption squeegee skeleton 3. A servo motor 4 for providing power for the lifting or lowering movement of the water absorption squeegee skeleton 3 is arranged on the bottom plate 1. A servo arm 5 is arranged at the output end of the servo motor 4. The servo arm 5 is connected to the water absorption squeegee holder 2 through the water absorption squeegee guide cylinder 6. At least two groups of water absorption squeegee swing arms 7 for preventing the left and right swing of the water absorption squeegee skeleton 3 are arranged between the water absorption squeegee holder 2 and the bottom plate 1. Each group of water absorption squeegee swing arms 7 includes at least two parallel water absorption squeegee swing arms 7; A water suction squeegee skeleton 3 is installed with a water suction squeegee rubber 8. An inner cavity channel is arranged inside the water suction squeegee rubber 8. The top of the inner cavity channel is connected to a water suction squeegee water pipe joint 9, and a water suction port is arranged at the bottom. The water suction squeegee water pipe joint 9 is connected to a sewage tank through a sewage suction pipe. After a vacuum pump forms a negative pressure in the sewage tank and the inner cavity channel of the water suction squeegee rubber 8, the ground sewage is sucked into the sewage tank through the water suction squeegee rubber 8 and the water suction squeegee water pipe joint 9; Limit convex platforms 10 are arranged at both ends of the water suction squeegee skeleton 3. A pot magnet 11 is arranged inside the limit convex platform 10. A dust mop cloth 13 is sleeved on a dust mop skeleton 12, and a connecting column 14 is arranged at the top. The dust mop cloth 13 covers the bottom of the dust mop skeleton 12. A dust removal component is arranged on one side of the dust mop skeleton 12. The dust removal component includes a fixed top plate 15. The fixed top plate 15 is installed on the water suction squeegee holder 2 through a positioning component. A sliding bottom plate 16 is arranged below. A plurality of guiding columns 17 are arranged between the fixed top plate 15 and the sliding bottom plate 16. The lower ends of the guiding columns 17 sequentially pass through a first guiding hole on the fixed top plate 15 and a second guiding hole on the sliding bottom plate 16 and then are connected with a limit bottom plate 18, and the top is connected with a limit top plate 19. A shock absorption spring 20 is sleeved on the guiding column 17. The upper and lower ends of the shock absorption spring 20 respectively abut against the fixed top plate 15 and the sliding bottom plate 16. A sewage discharge channel 21 with a closed periphery is arranged on the sliding bottom plate 16. A dirt blocking plate 22 is arranged on one side of the sewage discharge channel 21, and a dirt removing protrusion 23 is arranged at the bottom on the other side. The upper and lower ends of the dirt blocking plate 22 respectively extend out of the top and bottom of the sewage discharge channel 21. A receiving groove 24 is arranged on the outer side of the sliding bottom plate 16; The bottom surface of the dirt blocking plate 22 is higher than the bottom surface of the dirt removing protrusion 23, so that the dirt blocking plate 22 will not interfere with the dirt removal of the dirt removing protrusion 23. The top surface of the dirt blocking plate 22 is higher than the top surface of the sewage discharge channel 21. The bottom of the receiving groove 24 is higher than the bottom of the dirt removing protrusion 23; Elastic washers are arranged between the limit top plate 19 and the fixed top plate 15, and between the limit bottom plate 18 and the sliding bottom plate 16. The elastic washers are sleeved on the guiding column 17; The positioning component includes a positioning bracket 25 and a positioning convex platform 26 arranged on the water suction squeegee holder 2. One end of the positioning bracket 25 is connected to the fixed top plate 15, and the other end is arranged in a positioning groove on the positioning convex platform 26. The positioning bracket 25 and the positioning convex platform 26 are connected through a positioning bolt; A shock absorber 27 is arranged between the bottom plate 1 and the water suction squeegee holder 2. The shock absorber 27 is used to reduce the vibration suffered by the water suction squeegee skeleton 3 during the up and down movement; When the water suction squeegee skeleton 3 makes a lifting or lowering movement, two groups of water suction squeegee swing arms 7 form a parallelogram structure; Both ends of the water suction squeegee swing arm 7 are rotatably installed on the water suction squeegee holder 2 and the bottom plate through spherical plain bearings, and spring washers are provided at the installation positions of the water suction squeegee swing arm 7 and the water suction squeegee holder 2 as well as the water suction squeegee swing arm 7 and the bottom plate 1; The pot magnet 11 is installed on the limit boss 10 through countersunk head screws 28, and the dust push skeleton 12 is connected to the connecting column 14 through the first countersunk head screws 31.

[0018] The bottom of the dust push skeleton 12 is bonded with a magic tape 29, and the dust push cloth 13 is fixed to the dust push skeleton 12 through the magic tape 29; The water suction squeegee rubber 8 is made of polyurethane material, and an antistatic coating is provided on the surface of the water suction squeegee rubber 8. A plurality of decontamination grooves 30 are provided at the bottom of the dust push cloth 13. The decontamination grooves 30 are rectangular grooves and the distance between adjacent two decontamination grooves 30 is equal.

[0019] During the water suction task execution of the cleaning robot, the steering gear drives the steering gear arm to rotate, so that the water suction squeegee swing arm drives the water suction squeegee holder 2 to descend along the water suction squeegee guiding cylinder 6, making the bottom surface of the water suction squeegee rubber 8 fit the ground. Then, after a negative pressure is formed in the sewage tank and the inner cavity channel of the water suction squeegee rubber 8 through a vacuum pump, the ground sewage is sucked into the sewage tank through the water suction port, the inner cavity channel and the water suction squeegee water pipe joint 9 of the water suction squeegee rubber 8. During the movement of the water suction squeegee rubber 8, a plurality of water suction squeegee swing arms 7 form a parallel polygon mechanism, and under the guiding action of the water suction squeegee guiding cylinder 6, the water suction squeegee rubber 8 adapts to the ground undulation, and the shock absorber 27 ensures the smoothness of the movement and the continuity of sewage suction; When performing the dust pushing task, first end the water suction task. Then, the steering gear 5 drives the water suction squeegee swing arm 7 to lift the water suction squeegee holder 2 along the water suction squeegee guiding cylinder 6. Then, the connecting column 14 on the dust push skeleton 12 is attracted to the pot magnet 11 in the limit boss 10 on the water suction squeegee skeleton 3. At the same time, the connecting column 14 is inserted into the installation hole of the limit boss 10, which plays a role in increasing the connection strength of the dust push skeleton 12, meeting the friction between the dust push cloth 13 and the ground and reducing the impact force; When the dust pushing operation is completed, lift the water suction squeegee skeleton 3, hold both sides of the dust push skeleton 12, and press down hard to separate the connecting column 14 on the dust push skeleton 12 from the limit boss 10 on the water suction squeegee skeleton 3; Through the magnetic attraction positioning of the pot magnet 11, quickly replace the dust push cloth 13 and then lower the dust push skeleton 12 to the working position. When the cleaning robot moves horizontally, the dust push cloth frictions and gathers dust; When performing the dust pushing task, the dust pushing cloth 13 first performs the initial dirt removal on the ground to complete the removal of most of the dirt. After a small amount of stubborn dirt is loosened after being processed by the dust pushing cloth 13, the dirt removing protrusion 23 on the sliding bottom plate 16 is in close contact with the ground under the action of the shock absorbing spring 20 and the dirt is removed. Under the action of the shock absorbing spring 20, the dirt removing protrusion 23 is in close contact with the ground to improve the thoroughness of dirt removal. The removed solid dirt gradually gathers and increases on one side of the dirt removing protrusion 23 and enters the receiving groove 24 through the sewage discharge channel 21.

[0020] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A water-absorbing dust mop device for a cleaning robot, characterized in that: It includes a bottom plate and a water suction squeegee holder. The water suction squeegee holder is arranged on the water suction squeegee skeleton. A servo motor for providing power for the lifting or lowering movement of the water suction squeegee skeleton is arranged on the bottom plate. A servo arm is arranged at the output end of the servo motor. The servo arm is connected to the water suction squeegee holder through a water suction squeegee guide tube. At least two groups of water suction squeegee swing arms for preventing the left - right swing of the water suction squeegee skeleton are arranged between the water suction squeegee holder and the bottom plate. Each group of water suction squeegee swing arms includes at least two water suction squeegee swing arms arranged in parallel. A water suction squeegee rubber is installed on the water suction squeegee skeleton. An inner cavity channel is arranged inside the water suction squeegee rubber. The top of the inner cavity channel is connected to a water suction squeegee water pipe joint, and a water suction port is arranged at the bottom. The water suction squeegee water pipe joint is connected to a sewage tank through a sewage suction pipe. After the vacuum pump forms a negative pressure in the sewage tank and the inner cavity channel of the water suction squeegee rubber, the ground sewage is sucked into the sewage tank through the water suction squeegee rubber and the water suction squeegee water pipe joint. Limit convex platforms are arranged at both ends of the water suction squeegee skeleton. Pot magnets are arranged inside the limit convex platforms. A dust mop cloth is sleeved on the dust mop skeleton, and a connecting column is arranged at the top. The dust mop cloth covers the bottom of the dust mop skeleton. A dust removal component is arranged on one side of the dust mop skeleton. The dust removal component includes a fixed top plate, which is installed on the water suction squeegee holder through a positioning component. A sliding bottom plate is arranged below. A plurality of guiding columns are arranged between the fixed top plate and the sliding bottom plate. The lower ends of the guiding columns sequentially pass through the first guiding holes on the fixed top plate and the second guiding holes on the sliding bottom plate and then are connected to a limit bottom plate, and the top is connected to a limit top plate. A shock - absorbing spring is sleeved on the guiding column. The upper and lower ends of the shock - absorbing spring respectively abut against the fixed top plate and the sliding bottom plate. A sewage discharge channel with a closed perimeter is arranged on the sliding bottom plate. A dirt - blocking plate is arranged on one side of the sewage discharge channel, and a dirt - removing protrusion is arranged at the bottom on the other side. The upper and lower ends of the dirt - blocking plate respectively extend out of the top and bottom of the sewage discharge channel. A receiving groove is arranged on the outer side of the sliding bottom plate.

2. The water-absorbing dust mopping device for a cleaning robot according to claim 1, characterized in that: The bottom surface of the dirt - blocking plate is higher than the bottom surface of the dirt - removing protrusion, the top surface of the dirt - blocking plate is higher than the top surface of the sewage discharge channel, and the bottom of the receiving groove is higher than the bottom of the dirt - removing protrusion.

3. The water-absorbing dust mop device for a cleaning robot according to claim 1, wherein: Elastic washers are arranged between the limit top plate and the fixed top plate, and between the limit bottom plate and the sliding bottom plate. The elastic washers are sleeved on the guiding columns.

4. The water-absorbing and dust-pushing device for a cleaning robot according to claim 1, characterized in that: The positioning component includes a positioning bracket and a positioning convex platform arranged on the water suction squeegee holder. One end of the positioning bracket is connected to the fixed top plate, and the other end is arranged in a positioning groove on the positioning convex platform. The positioning bracket and the positioning convex platform are connected by a positioning bolt.

5. The water-absorbing dust mopping device for a cleaning robot according to claim 1, characterized in that: A shock absorber is arranged between the bottom plate and the water suction squeegee holder. The shock absorber is used to reduce the vibration received by the water suction squeegee skeleton during the up - and - down movement.

6. The water-absorbing and dust-pushing device for a cleaning robot according to claim 1, wherein: When the water suction squeegee skeleton makes a lifting or lowering movement, the two groups of water suction squeegee swing arms form a parallelogram structure.

7. The water-absorbing dust mopping device for a cleaning robot according to claim 1, characterized in that: Both ends of the water suction squeegee swing arm are rotatably installed on the water suction squeegee holder and the bottom plate through spherical plain bearings. Elastic washers are arranged at the installation positions of the water suction squeegee swing arm and the water suction squeegee holder, and between the water suction squeegee swing arm and the bottom plate.

8. The water-absorbing dust mopping device for a cleaning robot according to claim 1, characterized in that: The pot magnet is installed on the limiting boss through a countersunk head screw, and the dust mop frame is connected to the connecting column through a first countersunk head screw.

9. The water-absorbing dust mopping device for a cleaning robot according to claim 1, characterized in that: A magic tape is adhered to the bottom of the dust mop frame, and the dust mop cloth is fixed to the dust mop frame through the magic tape.

10. The water-absorbing and dust-pushing device for a cleaning robot according to claim 1, wherein: The water suction rubber strip is made of polyurethane material, and an anti-static coating is provided on the surface of the water suction rubber strip. A plurality of decontamination grooves are provided at the bottom of the dust mop cloth. The decontamination grooves are rectangular grooves and the distance between adjacent two decontamination grooves is equal.

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