Connecting structure of cleaning roller

By designing a cleaning roller connection structure including a roller body, socket and plug, combined with a rotor frame and planetary gear transmission structure, the existing mahjong cleaning machine has been solved for a long cleaning time and scratched pigment, and efficient and rapid mahjong cleaning and discharge are achieved.

CN222956981UActive Publication Date: 2025-06-10HANGZHOU JIANGRAN YIXIN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421730182.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-06-10
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

During the cleaning process of existing mahjong cleaning machines, the mahjong is stacked on the roller, and the brush roller slowly squeezes the mahjong below upwards through centrifugal force. During this process, it is difficult to move the mahjong above, resulting in a long cleaning time and easy to scratch pigment.

Method used

A connection structure for cleaning rollers is designed, including roller body, socket and plug. Through an insertable plug and a slidingly connected socket, combined with the design of compression spring, the roller body is easily installed and disassembled. At the same time, through the rotating frame and planetary gear transmission structure, efficient cleaning and discharge of mahjong is achieved.

Benefits of technology

The design greatly reduces the time for mahjong cleaning, avoids scratching pigments, and improves cleaning efficiency and user experience through improved feed and discharge devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

A connecting structure of a cleaning roller comprises a roller body and a socket, plugs capable of being inserted into the socket are arranged at the two ends of the roller body, the socket is connected with a rotating shaft, the socket is connected with a connecting sleeve in a sliding mode, and the connecting sleeve can move from a sleeving position where the plugs are contained to a separation position where the plugs are separated. And a compression spring for keeping the connecting sleeve at the sleeving position is arranged between the connecting sleeve and the socket.
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Description

Technical Field

[0001] The utility model relates to the field of mahjong, and specifically to a connection structure of a cleaning roller. Background Art

[0002] The Chinese patent with the application number CN202310968423.1 discloses a multifunctional mahjong cleaning machine, which includes a drum cleaning mechanism (rotating frame) with a first brush head on the inner wall and a rotating shaft inside the drum with a second brush head on the outer peripheral surface. The drum cleaning mechanism includes a drum body and a drum door. The rotating shaft inside the drum is fixed to the drum cleaning mechanism. Therefore, when cleaning mahjong, the relative displacement between the brush head and the mahjong is very small, and the cleaning effect is not good.

[0003] The Chinese patent with the application number CN201911118591.1 discloses a conveyor-type mahjong cleaning machine, which relates to the technical field of mahjong machines. It includes a frame, a first transportation mechanism for guiding magnetic mahjong for preliminary cleaning, a first cleaning mechanism for preliminarily cleaning magnetic mahjong, a second transportation mechanism for guiding magnetic mahjong for secondary cleaning, a second cleaning mechanism for secondary cleaning magnetic mahjong, a third transportation mechanism for guiding magnetic mahjong for drying, a drying mechanism for drying magnetic mahjong, and a fourth transportation mechanism for storing magnetic mahjong. Although each of the six faces of every mahjong is cleaned one by one, due to high cost, the cleaning speed is slow.

[0004] The Chinese patent with the application number 201921836183.5 discloses a mahjong cleaning device, which includes at least two layers of rollers arranged from top to bottom. The number of rollers in each layer is at least two. The connecting line of the centers of the adjacent upper roller and the lower roller is inclined at 30 to 60 degrees. The cleaning area formed by the rollers has a structure that is wider at the top and narrower at the bottom. The rotating rollers (cleaning rollers) continuously rub and tumble the mahjong. This mahjong cleaning device has been widely sold in the market and is divided into two specifications to clean mahjong of 36 - 50# and 52 - 64# respectively. When this mahjong cleaning machine cleans mahjong, the mahjong is stacked on the rollers, and the brush roller slowly squeezes the lower mahjong upwards by centrifugal force. During this process, it is very difficult for the upper mahjong to move downwards. Therefore, it takes a very long time to complete the cleaning of mahjong. In addition, the situation of scratching the pigments will occur. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a connection structure of a cleaning roller, which can facilitate the installation and disassembly of the cleaning roller.

[0006] To achieve the above object, the utility model provides a connection structure of a cleaning roller, which includes a roller body, a socket, and plugs are arranged at both ends of the roller body and can be inserted into the socket. The socket is connected with a rotating shaft, and a connecting sleeve is slidably connected to the socket. The connecting sleeve can move from a socket position accommodating the plug to a disengaging position disengaging from the plug. A compression spring is arranged between the connecting sleeve and the socket for keeping the connecting sleeve in the socket position.

[0007] Preferably, the discharge cover covers the discharge port, and the rotation axis of the rotating frame extends downward from the feed port towards the discharge port. In this way, after the discharge cover is opened, the rotation of the rotating frame can be controlled, and as the rotating frame rotates, the mahjong gradually falls from the discharge port, without the need to take out the mahjong from the accommodating cavity by hand as in the prior art.

[0008] Preferably, the plurality of cleaning rollers include a brush roller and a cloth roller arranged at intervals. A plurality of scrubbing parts are arranged on the outer peripheral surface of the brush roller, and the cloth roller is wrapped with a sponge sleeve and a cloth tube sleeved outside the sponge sleeve. The cloth tube can well coat the absorbed cleaning agent on the mahjong and wipe the surface of the mahjong, and the brush roller rotates at a high speed to scrub the mahjong.

[0009] Preferably, it further includes an open cover driving device for driving the discharge cover to open. After the cleaning is completed, the open cover driving device can be controlled to open the discharge cover.

[0010] The utility model provides a feeding device of a mahjong cleaning machine. The mahjong cleaning machine has a frame and an accommodating cavity. The feeding device includes a hopper fixed to the frame and extending towards the feed port of the accommodating cavity. The hopper is connected with a dumping plate, and the dumping plate can move from a closed position covering the feed port to a receiving position disengaging from the feed port and abutting against the mahjong table. The dumping plate includes a vertical plate and a horizontal plate, and the horizontal plate is used to cross the border of the mahjong table and abut against the tabletop of the mahjong table. After the horizontal plate abuts against the tabletop, the user slides the mahjong into the feed port through the horizontal plate, without the need to pick up the mahjong and put it into the feed port as in the prior art.

[0011] Preferably, it further includes a controller electrically connected to the electromagnet and the proximity switch. In this way, the controller can control the electromagnet to attract the iron body after the proximity switch detects that the discharge cover is closed.

[0012] The utility model provides a planetary gear transmission structure with a feed port, which includes a plurality of planetary gears arranged on a turntable and meshing with a large gear ring. A feed port is opened in the middle of the turntable. The turntable is provided with a transmission ring on one side of the planetary gear, and the turntable is provided with a feed pipe extending towards one side of the planetary gear and surrounding the feed port. In this application, the feed port is arranged in the middle of the turntable, and at the same time, the feed pipe is arranged to prevent the material flow from falling into the gap between the planetary gear and the rotating disc.

[0013] The utility model provides a connection structure of a cleaning roller, which includes a roller body, a first socket, a second socket. The two ends of the roller body are provided with a first plug and a second plug that can be inserted into the first socket and the second socket respectively. The first socket is connected with a rotating part. The first plug is slidably connected with the roller body. The first plug can move from the insertion position accommodated in the first socket to the extraction position separated from the first socket. A first compression spring for keeping the first plug in the insertion position is arranged between the first plug and the roller body. When the roller body needs to be removed, the user squeezes the first plug to contract the first compression spring, so as to separate the first plug from the first socket.

[0014] The utility model also provides a connection structure of a cleaning roller, which includes a roller body, a first socket, a second socket. The two ends of the roller body are provided with a first plug and a second plug that can be inserted into the first socket and the second socket respectively. The first socket is connected with a rotating part. The first socket is slidably connected with the roller body. The first socket can move from the socket position accommodating the first plug to the separation position separated from the first plug. A second compression spring for keeping the first socket in the socket position is arranged between the first socket and the rotating shaft. When the roller body needs to be removed, the user squeezes the first socket to contract the second compression spring, so as to separate the first plug from the first socket. Description of the Drawings

[0015] Figure 1 Structure diagram of the mahjong cleaning machine according to the first embodiment of the utility model.

[0016] Figure 2 For Figure 1 exploded view of the mahjong cleaning machine.

[0017] Figure 3 For Figure 2 partial enlarged view of part A.

[0018] Figure 4 For Figure 2 partial enlarged view of part A'.

[0019] Figure 5 For Figure 2 exploded view of the main body.

[0020] Figure 6 For Figure 5 partial enlarged view of part B.

[0021] Figure 7 For Figure 2 exploded view of the feeding device.

[0022] Figure 8 For Figure 7 partial enlarged view of part C.

[0023] Figure 9 The structure diagram when the feeding device Figure 7 is in use.

[0024] Figure 10 is Figure 9 the enlarged partial view at position D of

[0025] Figure 11 is Figure 2 the exploded view of the discharging device of

[0026] Figure 12 is Figure 11 the enlarged partial view at position E of

[0027] Figure 13 is Figure 1 the schematic structural diagram of the planetary gear and rotating shaft of the mahjong cleaning machine of

[0028] Figure 14 is Figure 13 the exploded view of the planetary gear and rotating shaft of the mahjong cleaning machine of

[0029] Figure 15 is Figure 5 the exploded view of the cloth roller of the mahjong cleaning machine of

[0030] Figure 16 is Figure 5 the schematic structural diagram of the brush roller of the mahjong cleaning machine of

[0031] Figure 17 is Figure 16 the enlarged partial view at position F of

[0032] Figure 18 is Figure 16 the cross-sectional view of the brush roller of

[0033] Figure 19 is Figure 1 the cross-sectional view of the mahjong cleaning machine of

[0034] Figure 20 is Figure 19 the enlarged partial view at position G of Detailed implementation manners

[0035] 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.

[0036] Please refer to Figure 1-20The mahjong cleaning machine includes a main body 1, a shell 2, a feeding device 3, and a discharging device 4.

[0037] The main body includes a rotating frame 12 arranged on a frame 11, a plurality of cleaning rollers arranged around the rotation axis of the rotating frame 12, and a rotating driving device 10 for driving the rotating frame 12 and the cleaning rollers to rotate. The cleaning rollers are parallel to the rotation axis of the rotating frame 12. The plurality of cleaning rollers surround to form a receiving chamber 100. A feed port 100a is provided at one end of the rotating frame 12. The horizontal angle of the rotation axis of the rotating frame 12 is 0-45 degrees. A discharge cover 41 is provided at one end of the receiving chamber 100 facing away from the feed port 100a. In the present application, the cleaning rollers wipe away dirt on the mahjong by rotating, and at the same time, the rotating frame 12 is used to rotate to make the mahjong rise and then fall, so that the mahjong is continuously turned over. The frame 11 is provided with a cleaning scraper 112 extending toward the brush roller 13.

[0038] The discharge cover 41 covers the discharge port 100b, and the rotation axis of the rotating frame 12 extends downward from the feed port 100a toward the discharge port 100b. In this way, after the discharge cover 41 is opened, the rotating frame 12 can be controlled to rotate, and as the rotating frame 12 rotates, the mahjong gradually falls from the discharge port 100b, and there is no need to take out the mahjong from the accommodating chamber 100 by hand as in the prior art.

[0039] The plurality of cleaning rollers include brush rollers 13 and cloth rollers 14 arranged at intervals. The outer peripheral surface of the brush roller 13 is provided with a plurality of brushing parts. The cloth roller 14 includes a roller body 140, a sponge cover 141 wrapped outside the roller body 140, a cloth tube 142 sleeved outside the sponge cover 141, and plugs 143 arranged at both ends of the roller body 140. The cloth tube 142 can well apply the absorbed cleaning agent on the mahjong and wipe the surface of the mahjong. The brush roller 13 rotates at high speed to brush the mahjong. The plug 143 is a straight-line structure.

[0040] The mahjong cleaning machine also includes a cover opening driving device 42 for driving the discharge cover 41 to open. After cleaning is completed, the cover opening driving device 42 can be controlled to open the discharge cover 41. The inner side of the vertical plates on both sides of the frame 11 is provided with a limit ring 110 that cooperates with the end surface of the rotating disk 121 to prevent the rotating frame 12 from moving along the rotation axis direction.

[0041] The frame 11 is provided with a large gear ring 111 , the cleaning roller is connected with a planetary gear 51 meshing with the large gear ring 111 , and the rotating frame 12 and the rotary driving device 10 are driven by a gear 101 .

[0042] The mahjong cleaning machine further comprises a hot air device 61 and a germicidal lamp 62 facing the accommodating chamber 100. The germicidal lamp 62 is arranged on the inner surface of the housing 2.

[0043] The frame 11 is slidably connected with a dirt collection drawer 63 for receiving dirt located below the rotating frame 12. A cleaning agent spraying device for spraying cleaning agent toward the accommodating chamber 100 is also included.

[0044] The brush roller 13 includes a roller body 140. A plurality of first brush belts are provided on the surface of the roller body 140. The first brush belt includes a plurality of first brush groups arranged on the surface of the roller body 140. Each first brush group includes two first brush heads 131. There is a turning recess 13a between the first brush belt and an adjacent first brush belt for accommodating a part of the mahjong tiles. The first brush belt is used to rotate and squeeze the mahjong tiles to move along the rotation direction of the roller body 140, so that the mahjong tiles are turned over during cleaning. A cleaning roller of a mahjong tile cleaning machine includes a roller body 140. A plurality of first brush belts are provided on the surface of the roller body 140. The first brush belt includes a plurality of first brush heads 131 arranged on the surface of the roller body 140. There is a spiral turning recess 13a between the first brush belt and an adjacent first brush belt for accommodating a part of the mahjong tiles. The first brush belt is used to rotate and squeeze the mahjong tiles to move along the rotation direction of the roller body 140 and the rotation axis direction of the roller body 140, so that the mahjong tiles are turned over during cleaning. The first brush belt is also used to squeeze the mahjong tiles to move towards the discharging direction when rotating in a second direction opposite to the first direction. A second brush belt is provided in the turning groove. The second brush belt includes a plurality of second brush heads 132 with a height shorter than that of the first brush heads 131. The width of the turning recess 13a is 10 mm - 16 mm.

[0045] The bristles of the first brush heads 131 and / or the second brush heads 132 have a diameter of 0.2 mm - 0.3 mm. The spiral angle of the turning recess 13a is 6° - 14°. The height of the first brush heads 131 protruding from the roller body 140 is 8 mm - 12 mm, and the height of the second brush heads 132 protruding from the roller body 140 is 2 - 8 mm. Moreover, the first brush heads 131 are 3 mm - 7 mm higher than the second brush heads 132. The bristles are made of nylon.

[0046] The first brush heads 131 and / or the second brush heads 132 are cylindrical brush heads with a diameter of 3.5 mm - 6.5 mm. Plug connectors connected to the rotating shaft 53 of the mahjong tile cleaning machine are provided at both ends of the roller body 140.

[0047] The present utility model also provides a cleaning method for the above-mentioned mahjong tile cleaning machine, including: putting a plurality of mahjong tiles into the feeding port 100a; controlling the rotation drive device 10 to rotate forward, and the first brush belt squeezes the mahjong tiles to turn towards the discharging port 100b; controlling the cleaning agent nozzle 646464 to spray the cleaning agent; turning on the hot air device 61 and the sterilization lamp 62; completing the cleaning; turning off the hot air device 61 and the sterilization lamp 62, and controlling the cover opening drive device 42 to open the discharging cover 41; controlling the rotation drive device 10 to rotate in the reverse direction, and the first brush belt squeezes the mahjong tiles to turn away from the discharging port 100b.

[0048] The utility model provides a feeding device 3 for a mahjong cleaning machine. The mahjong cleaning machine has a frame 11 and a receiving cavity 100. The feeding device 3 includes a hopper 31 extending towards a feeding port 100a of a front cover 113 fixed to the frame 11 and facing the receiving cavity 100. The hopper 31 is connected with a blanking plate 32. The blanking plate 32 can move from a closed position covering the feeding port 100a to a receiving position away from the feeding port 100a and abutting against a mahjong table. The blanking plate 32 includes a vertical plate 321 and a horizontal plate 322. The horizontal plate 322 is used to cross the border of the mahjong table and abut against the tabletop of the mahjong table. After the horizontal plate 322 abuts against the tabletop, the user slides the mahjong into the feeding port 100a through the horizontal plate 322, without having to pick up the mahjong and put it into the feeding port 100a as in the prior art.

[0049] The hopper 31 includes a slope 311 extending upward from the lower part of the feeding port 100a and away from the frame 11, and a side plate 312 for connecting the slope 311 and the frame 11.

[0050] The side plate 312 is provided with a vertical upward vertical track 320 and a horizontal track 320' extending away from the frame 11 from the middle of the vertical track 320. The upper part of the blanking plate 32 is provided with a first slider 32a slidably matched with the vertical track 320, and the lower part of the blanking plate 32 is provided with a second slider 32b slidably matched with the horizontal track 320'.

[0051] Both sides of the blanking plate 32 are provided with upward extending baffles 323.

[0052] When both the first slider 32a and the second slider 32b are slidably matched with the vertical track 320, the blanking plate 32 can only move up and down.

[0053] When the second slider 32b corresponds to the position of the horizontal track 320', the first slider 32a disengages from the vertical track 320, and the blanking plate 32 can rotate.

[0054] The first slider 32a is of a plate-like structure.

[0055] Both the vertical track 320 and the horizontal track 320' are of groove structures.

[0056] The second slider 32b is circular.

[0057] The hopper 31 and / or the blanking plate 32 are made of metal or plastic. The slope 311 is provided with a plurality of ventilation holes, and a hot air device 61 is fixed on the side of the slope 311 facing away from the receiving cavity 100.

[0058] The utility model provides a discharging device 4 for a mahjong cleaning machine, which includes a discharging cover 41 and an opening driving device 42 for driving the discharging cover 41 to open. The discharging cover 41 is rotatably connected to the machine frame 11. On one side of the discharging cover 41 facing away from the rotating connection part 411, there is an iron body 44 that can be attracted by an electromagnet 43, and the machine frame 11 is provided with an electromagnet 43 corresponding to the iron body 44. In this application, the mutually attracting electromagnet 43 and iron body 44 are provided, so that the discharging cover 41 will not be pushed open by mahjong when it is closed.

[0059] The rear cover 114 of the machine frame 11 is provided with a proximity switch 46 for detecting whether the discharging cover 41 is closed.

[0060] It also includes a controller electrically connected to the electromagnet 43 and the proximity switch 46. In this way, the controller can control the electromagnet 43 to attract the iron body 44 after the proximity switch 46 detects that the discharging cover 41 is closed.

[0061] The discharging cover 41 is provided with an iron body accommodating part 410 for accommodating the iron body 44, and the rear cover 114 of the machine frame 11 is provided with an electromagnet accommodating part for accommodating the electromagnet 43.

[0062] The inner surface of the discharging cover 41 is provided with a cleaning agent spray head 64.

[0063] The cleaning agent spray head 64 is connected to a pump 65 fixed on the machine frame 11 through a pipeline.

[0064] The inner surface of the discharging cover 41 extends towards the inside of the machine frame 11 with a plug. The plug is used to block the material guiding pipe 1211 of the mahjong cleaning machine. The surface of the plug facing the inside of the machine frame 11 is provided with a plurality of third brush heads 45. The third brush heads 45 are connected and fixed to the plug through magic tape. The third brush heads 45 can play a role in cleaning mahjong, and can also reduce the noise and vibration generated by mahjong colliding with the plug.

[0065] The discharging cover 41 includes an inner shell and a cover plate fixed to each other by screws, and the discharging cover 41 is a hollow structure.

[0066] The rotating connection part 411 is a hollow structure.

[0067] The pipeline passes through the rotating connection part 411 and is connected to the cleaning agent spray head 64. The cleaning agent spraying device includes the cleaning agent spray head 64, the pump 65, and the cleaning agent container 66.

[0068] The utility model provides a transmission structure of a rotating frame with inlet and outlet openings on the end face, which includes turntables 121 arranged at both ends of the rotating frame 12, and a plurality of planet gears 51 arranged on the turntables 121 and meshing with a large gear ring 52. Feed openings 100a and discharge openings 100b are respectively formed in the turntables 121 at both ends of the rotating frame 12. The turntable 121 is provided with a transmission ring 52 on one side of the planet gear 51, and the turntable 121 is provided with a material guiding pipe 1211 extending towards the center of the rotating frame 12. In this application, the feed opening 100a is arranged in the middle of the turntable 121, and the material guiding pipe 1211 is arranged to prevent the material flow from falling into the gap between the planet gear 51 and the rotating disk 121.

[0069] The outer peripheral surface of the transmission ring 52 has transmission teeth.

[0070] In other embodiments, the outer peripheral surface of the transmission ring 52 has grooves for cooperating with a belt for transmission, and the rotating frame 12 and the rotary driving device 10 are driven by a belt.

[0071] The turntable 121 at the rear end of the rotating frame 12 is rotatably connected with a planet gear 51, the turntable 121 at the rear end of the rotating frame is rotatably connected with a rotating shaft 53 without a planet gear, and the planet gear 51 is connected with a rotating shaft 53 rotatably connected with the turntable 121.

[0072] A bearing 54 is provided between the rotating shaft 53 and the turntable 121.

[0073] The rotating shaft 53 passes through the turntable 121 and is connected with a socket 55 for connecting a cleaning roller.

[0074] The material guiding pipe 1211 extends in a direction away from the planet gear 51 to form a falling prevention pipe section 1211a, and the falling prevention pipe section 1211a is used to prevent mahjong from falling into the gap between the cleaning roller and the turntable 121.

[0075] The large gear ring 111 is provided with connection holes for connecting and fixing with the frame 11.

[0076] The transmission ring 52 and the turntable 121 are connected and fixed by screws.

[0077] The planet gear 51, the large gear ring 111, the turntable 121, and the transmission ring 52 are made of metal or plastic.

[0078] A connection structure of a cleaning roller includes a roller body 140, a socket 55, plugs 143 that can be inserted into the socket 55 are provided at both ends of the roller body 140, the socket 55 is connected with a rotating shaft 53, a connecting sleeve 56 is slidably connected to the socket 55, the connecting sleeve 56 can move from a socket position accommodating the plug 143 to a disengaging position disengaging from the plug 143, and a compression spring 5t for keeping the connecting sleeve 56 in the socket position is provided between the connecting sleeve 56 and the socket 55.

[0079] The cross-section of the socket 55 is U-shaped, and the socket 55 has a removal notch. The connecting sleeve 56 is provided with an operation protrusion 561. It further includes a guide tube 57 fixedly connected to the rotating shaft 53. The guide tube 57 is provided with a guide protrusion 571 that cooperates with the connecting sleeve 56. The connecting sleeve 56 is provided with a guide groove 562 that cooperates with the guide protrusion 571. The operation protrusion 561 corresponds to the position of the removal notch. The connecting sleeve 56 can be accommodated in the guide tube 57. One end of the guide groove 562 close to the rotating shaft 53 is provided with an anti-falling protrusion 563. The guide protrusion 571 is located at one end of the guide tube 57 close to the roller body 140. The anti-falling protrusion 563 and the guide protrusion 571 are respectively provided with installation guiding slopes.

[0080] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for a cleaning roller, characterized in that: It includes a roller body and a socket, plugs that can be inserted into the socket are provided at both ends of the roller body, the socket is connected to a rotating shaft, the socket is slidably connected to a connecting sleeve, the connecting sleeve can be moved from a socket position for accommodating the plug to a disengagement position for disengaging from the plug, and a compression spring for keeping the connecting sleeve in the socket in the socket position is provided between the connecting sleeve and the socket.

2. The connection structure of the cleaning roller according to claim 1, characterized in that: The cross section of the socket is U-shaped, and the socket has a removal notch.

3. The connection structure of the cleaning roller according to claim 2, characterized in that: The connecting sleeve is provided with an operating protrusion.

4. The connection structure of the cleaning roller according to claim 3, characterized in that: It also includes a guide tube which is connected and fixed to the rotating shaft.

5. The connection structure of the cleaning roller according to claim 4, characterized in that: The guide tube is provided with a guide protrusion matched with the connecting sleeve.

6. The connection structure of the cleaning roller according to claim 5, characterized in that: The connecting sleeve is provided with a guide groove which cooperates with the guide protrusion.

7. The connection structure of the cleaning roller according to claim 6, characterized in that: The operating protrusion corresponds to the position of the taking-out notch.

8. The connection structure of the cleaning roller according to claim 7, characterized in that: The connecting sleeve can be accommodated in the guide tube.

9. The connection structure of the cleaning roller according to claim 8, characterized in that: An anti-drop protrusion is provided at one end of the guide groove close to the rotating shaft.

10. The connection structure of the cleaning roller according to claim 9, characterized in that: The guide protrusion is located at one end of the guide tube close to the roller body, and the anti-drop protrusion and the guide protrusion are respectively provided with installation guide inclined surfaces.

Citation Information

Patent Citations

  • A conveyor-type mahjong cleaning machine

    CN110694966B

  • Multifunctional mahjong cleaning machine

    CN116833148A

  • Mahjong cleaning device

    CN211247484U