Car window dust removal device for car maintenance

Abstract

The utility model discloses a car window dust removal device for car maintenance, and relates to the technical field of car window dust removal. The wet wiping assembly and the water wiping assembly are attached to the surface of a car window to move through the handheld frame, the wet wiping assembly pumps cleaning liquid from the water storage tank to wet wipe the car window, stubborn adhering dirt can be softened, the dirt can be removed more easily and rapidly, and the cleaning effect is better. The water scraping assembly not only can scrape water stains and stains left on the surface of a car window by the wet wiping assembly, but also can discharge sewage to the water collecting assembly in the scraping process and finally discharge the sewage to the sewage storage tank, sewage collection is achieved, and after main cleaning is completed through the wet wiping assembly and the water scraping assembly, wiping cloth is driven by the telescopic mechanism to stretch out and draw back, so that the wiping efficiency is improved. The wiping cloth protrudes out of the wet wiping assembly and the water wiping assembly, so that the surface of the car window is wiped in a dry mode, residual trace water spots and stains are further removed, wet wiping, water wiping and dry wiping are combined, the car window cleaning efficiency is improved, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle window dust removal, in particular to a vehicle window dust removal device for vehicle maintenance. Background Art

[0002] Dust and dirt are easily attached to the surface of the car windows during use. If not cleaned in time, it will not only affect the appearance, but also interfere with the driver's field of vision and endanger driving safety. Therefore, the windows need to be cleaned and maintained in time. At present, the dust removal and maintenance device for car windows mainly completes the cleaning of the windows through wiping and vacuuming.

[0003] In the prior art, a Chinese patent with authorization announcement number CN218390183U discloses a car window dust removal device for car maintenance. By setting up multiple sets of movable plates and cleaning brushes and performing rotary cleaning, efficient cleaning is achieved and the cleaning quality is improved. At the same time, hook stickers and suede stickers are used to facilitate the replacement and cleaning of the window cleaning brushes, thereby enhancing the flexibility and convenience of the dust removal device. When cleaning the dust in the window gap, the air intake pipe is removed from the hanging buckle, the fan start button is pressed, the dust suction head is aimed at the window gap, and the internal dust enters the dust suction box through the dust suction head and the air intake pipe.

[0004] The above-mentioned prior art solutions have the following defects: lack of spraying mechanism and scraping mechanism, so for stubborn dirt, such as dried bird droppings, the car windows can only be cleaned by dry wiping, the cleaning efficiency is low, and there is a possibility of expanding the contaminated area, thereby further increasing the workload, and the cleaning efficiency needs to be further improved.

[0005] For this reason, a vehicle window dust removal device for automobile maintenance is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides a car window dust removal device for car maintenance.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A window dust removal device for car maintenance comprises a base and a movable assembly, wherein the movable assembly is provided on the surface of the base, a dirt storage box, a water storage tank and a hanging rack are fixedly mounted on the top surface of the base, a wet wiping assembly and a water collecting assembly are fixedly mounted on the surface of the handheld frame, the wet wiping assembly is fixedly mounted on the top surface of the water collecting assembly, a hanging block is fixedly mounted on one end of the handheld frame away from the wet wiping assembly, the hanging block can be hung on the surface of the hanging rack, a wiper assembly is fixedly mounted on the liquid inlet side surface of the water collecting assembly, a telescopic mechanism is fixedly mounted on the top surface of the wet wiping assembly, and a wiping cloth is fixedly mounted on the surface of the telescopic part of the telescopic mechanism.

[0009] Furthermore, the movable component includes a support column, which is fixedly installed at the four corners of the bottom surface of the base, and a roller is fixedly installed on the bottom surface of the support column. A push handle is fixedly installed on the back of the base. The hanging frame includes a vertical plate, which is fixedly installed on the top surface of the base. A hook is fixedly installed on the surface of the vertical plate. The number of the hooks is two and the spacing is set to match the specifications of the elbow handle and the hanging block. The hanging block is mounted on the surfaces of the two hooks.

[0010] Furthermore, the handheld frame includes an elbow handle, a mounting plate is fixedly mounted on the surface of the elbow handle, an anti-slip cover is fixedly mounted on the surface of the elbow handle, and the wet wipe assembly and the water collection assembly are both fixedly mounted on the left side of the mounting plate.

[0011] Furthermore, the wet wiping assembly includes a water storage box, which is fixedly installed on the left side of the mounting plate, a water pipe is fixedly inserted on the left side of the water storage box, a fixing plate is fixedly mounted on the surface of the water pipe, a cleaning sponge is fixedly installed on the left side of the fixing plate, a water supply pipe is fixedly installed on the top surface of the water storage box, a water pump is provided on the surface of the water supply pipe, the water supply pipe is fixedly inserted on the surface of the water tank, the cleaning sponge is arranged to fit the end of the water pipe, and the water pipe, water storage box, water supply pipe and water tank are connected.

[0012] Furthermore, the water collecting component includes a water collecting bucket, which is fixedly connected to the bottom surface of the water storage box and the left side of the mounting plate. An opening is provided on the left side of the water collecting bucket. A connecting head is fixedly installed at the bottom end of the water collecting bucket. A return pipe is fixedly connected to the bottom end of the connecting head. The return pipe is fixedly inserted into the surface of the sewage storage tank. The water collecting bucket, the connecting head, the return pipe and the sewage storage tank are connected.

[0013] Furthermore, the wiper assembly includes a bottom inclined plate and side plates, the bottom inclined plate is fixedly installed at the lower end of the opening, the side plates are fixedly installed at the front and rear sides of the opening, and wiper strips are fixedly installed on the left sides of the bottom inclined plate and the side plates.

[0014] Furthermore, the telescopic mechanism includes a fixed block, which is fixedly installed on the top surface of the water storage box, and a first plug block and a second plug block are slidably inserted on the left side of the fixed block, and a movable plate is fixedly installed on the left sides of the first plug block and the second plug block, and the wiping cloth is fixedly installed on the left side of the movable plate. A limiting slide groove and a slot are provided on the left side of the fixed block, and a limiting slider is slidably installed on the inner wall surface of the limiting slide groove. The right end of the first plug block is fixedly connected to the surface of the limiting slider, and the second plug block is slidably inserted on the inner wall surface of the slot, and a threaded rod is rotatably inserted on the right side of the fixed block, and the threaded rod is rotatably arranged in the slot, the second plug block is threadedly installed on the surface of the threaded rod, and a rotating block is fixedly installed on the right end surface of the threaded rod.

[0015] The beneficial effects of the utility model are as follows:

[0016] The wet wiping component and the wiper component are moved in accordance with the window surface through the handheld frame. The wet wiping component draws cleaning fluid from the water tank to wet-wipe the window, which can soften stubbornly adhered dirt and make dirt removal easier and faster. The wiper component can not only scrape off water stains and stains remaining on the window surface by the wet wiping component, but also discharge the sewage into the water collecting component and finally into the sewage storage tank during the scraping process, so as to collect the sewage. After the main cleaning is completed by the wet wiping component and the wiper component, the telescopic mechanism drives the wiping cloth to extend and retract, so that the wiping cloth protrudes out of the wet wiping component and the wiper component, thereby dry-wiping the window surface to further remove residual trace water stains and stains. The combination of wet wiping, wiping and dry wiping not only improves the cleaning efficiency of the window, but also effectively improves the cleaning effect of the window, especially reduces the difficulty of cleaning stubborn stains. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the three-dimensional structure of the utility model;

[0019] Figure 3 It is a top sectional view of the telescopic mechanism of the utility model;

[0020] Reference numerals: 1, base; 2, moving assembly; 201, support column; 202, roller; 203, push handle; 3, hand-held frame; 301, elbow handle; 302, anti-slip cover; 303, mounting plate; 4, hanging block; 5, wet wipe assembly; 501, water storage box; 502, water pipe; 503, fixing plate; 504, cleaning sponge; 505, water supply pipe; 506, water pump; 6, water collection assembly; 601, water collection bucket; 602, connector; 603 , return pipe; 7, wiper assembly; 701, bottom inclined plate; 702, side plate; 703, wiper strip; 8, telescopic mechanism; 801, fixed block; 802, limit slide groove; 803, limit slider; 804, first plug-in block; 805, slot; 806, second plug-in block; 807, threaded rod; 808, rotary block; 809, movable plate; 9, wiping cloth; 10, dirt storage box; 11, water storage tank; 12, mounting rack; 121, vertical plate; 122, hook. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figures 1 to 3 As shown, a window dust removal device for automobile maintenance comprises a base 1 and a moving component 2, the moving component 2 is provided on the surface of the base 1, a dirt storage box 10, a water storage tank 11 and a hanging rack 12 are fixedly mounted on the top surface of the base 1, a wet wiping component 5 and a water collecting component 6 are fixedly mounted on the surface of a handheld frame 3, the wet wiping component 5 is fixedly mounted on the top surface of the water collecting component 6, a hanging block 4 is fixedly mounted on one end of the handheld frame 3 away from the wet wiping component 5, the hanging block 4 can be hung on the surface of the hanging rack 12, a wiper component 7 is fixedly mounted on the liquid inlet side surface of the water collecting component 6, a telescopic mechanism 8 is fixedly mounted on the top surface of the wet wiping component 5, and a wiping cloth 9 is fixedly mounted on the surface of the telescopic part of the telescopic mechanism 8.

[0027] More specifically, the mobile component 2 assists the base 1 in moving, and the vehicle window dust removal device is moved to the side of the vehicle that needs to be cleaned. The handheld frame 3 is grasped to make the wet wiping component 5 and the wiper component 7 move in contact with the vehicle window surface. The wet wiping component 5 draws cleaning liquid from the water storage tank 11, and wet wiping the vehicle window by the wet wiping component 5 can soften stubbornly adhered dirt, making it easier and faster to remove the dirt. The wet wiping component 5 moves upward while driving the wiper component 7 to move upward. The wiper component 7 can not only scrape off the water stains and stains remaining on the vehicle window surface by the wet wiping component 5, but also discharge the sewage to the water collecting component 6 during the scraping process, and The water component 6 is discharged into the dirt storage box 10 to collect the dirty water. After the stains are cleaned by the wet wiping component 5 and the wiper component 7, the telescopic mechanism 8 drives the wiping cloth 9 to extend and retract, so that the wiping cloth 9 protrudes from the wet wiping component 5 and the wiper component 7, so that the window surface can be dry-wiped to further remove local residual water stains and stains. The combination of wet wiping, wiping and dry wiping not only improves the cleaning efficiency of the window, but also effectively improves the cleaning effect of the window, especially reduces the difficulty of cleaning stubborn stains, and by hanging the hanging block 4 on the surface of the hanging frame 12, the hand-held frame 3 and other structures arranged on its surface can be stored.

[0028] The mobile component 2 includes a support column 201, which is fixedly installed at the four corners of the bottom surface of the base 1. A roller 202 is fixedly installed on the bottom surface of the support column 201. A push handle 203 is fixedly installed on the back of the base 1. The mounting frame 12 includes a vertical plate 121, which is fixedly installed on the top surface of the base 1. A hook 122 is fixedly installed on the surface of the vertical plate 121. There are two hooks 122 and the spacing is matched with the specifications of the elbow handle 301 and the mounting block 4. The mounting block 4 is mounted on the surfaces of the two hooks 122.

[0029] Specifically, by pushing the push handle 203, the base 1 is moved under the action of the roller 202, thereby driving the vehicle window dust removal device to move flexibly as a whole, and the hanging block 4 is set on the surface of the two hooks 122, and the hand-held frame 3 is located between the two hooks 122, so as to realize the centralized hanging of the wet wiping component 5, the water collecting component 6, the wiper component 7, the telescopic mechanism 8 and other structures fixedly installed on the surface of the hand-held frame 3.

[0030] The handheld frame 3 includes an elbow handle 301 , a mounting plate 303 is fixedly mounted on the surface of the elbow handle 301 , an anti-slip sleeve 302 is fixedly sleeved on the surface of the elbow handle 301 , and the wet wipe component 5 and the water collection component 6 are both fixedly mounted on the left side of the mounting plate 303 .

[0031] Specifically, the anti-skid cover 302 is used to increase friction, and the elbow handle 301 and the mounting plate 303 are driven to move by grasping the anti-skid cover 302, so that the wet wiping assembly 5, the water collecting assembly 6 and the wiper assembly 7, the telescopic mechanism 8 and other structures fixedly mounted on the surface of the mounting plate 303 move together, thereby realizing wet wiping, wiper wiping and dry wiping of the window surface.

[0032] The wet wiping assembly 5 includes a water storage box 501, which is fixedly installed on the left side of the mounting plate 303. A water pipe 502 is fixedly inserted on the left side of the water storage box 501. A fixing plate 503 is fixedly mounted on the surface of the water pipe 502. A cleaning sponge 504 is fixedly installed on the left side of the fixing plate 503. A water supply pipe 505 is fixedly installed on the top surface of the water storage box 501. A water pump 506 is provided on the surface of the water supply pipe 505. The water supply pipe 505 is fixedly inserted on the surface of the water tank 11. The cleaning sponge 504 is arranged in contact with the end of the water pipe 502. The water pipe 502, the water storage box 501, the water supply pipe 505 and the water tank 11 are connected.

[0033] Specifically, the water in the water tank 11 is pumped into the water box 501 through the water supply pipe 505 by the water pump 506, and the water in the water box 501 is transported to the cleaning sponge 504 through the water pipe 502 to soak the cleaning sponge 504. When the wet wiping assembly 5 is moved by the handheld frame 3, the cleaning sponge 504 wet-wipes the surface of the vehicle window.

[0034] The water collecting component 6 includes a water collecting bucket 601, which is fixedly connected to the bottom surface of the water storage box 501 and the left side of the mounting plate 303. An opening is provided on the left side of the water collecting bucket 601. A connector 602 is fixedly installed at the bottom end of the water collecting bucket 601. A return pipe 603 is fixedly connected to the bottom end of the connector 602. The return pipe 603 is fixedly inserted on the surface of the sewage storage tank 10. The water collecting bucket 601, the connector 602, the return pipe 603 and the sewage storage tank 10 are connected.

[0035] Specifically, the wiper assembly 7 is closely attached to the window surface and moves along with the wet wiping assembly 5 to collect water generated by the wet wiping assembly 5. The water enters the water collecting bucket 601 through the surface and opening of the wiper assembly 7, and then is discharged to the interior of the sewage storage box 10 through the connector 602 and the return pipe 603, thereby realizing the centralized collection of sewage and avoiding pollution of the environment near the vehicle body.

[0036] The wiper assembly 7 includes a bottom inclined plate 701 and a side plate 702 . The bottom inclined plate 701 is fixedly installed at the lower end of the opening, and the side plates 702 are fixedly installed at the front and rear sides of the opening. Wiper strips 703 are fixedly installed on the left sides of the bottom inclined plate 701 and the side plates 702 .

[0037] Specifically, the wiper assembly 7 is pressed against the window surface and moves along with the wet wiping assembly 5. When the water pump 506 delivers excessive water, a large amount of water overflows through the cleaning sponge 504. At this time, the wiper strip 703 is pressed against the window surface to collect the overflowed water. The wiper strip 703 moves along with the wet wiping assembly 5 to scrape off water stains on the window after wet wiping by the fixed plate 503, thereby avoiding a large amount of stains remaining and assisting in scraping off stubborn dirt.

[0038] The telescopic mechanism 8 includes a fixed block 801, which is fixedly installed on the top surface of the water storage box 501. The first plug block 804 and the second plug block 806 are slidably inserted on the left side of the fixed block 801. The left sides of the first plug block 804 and the second plug block 806 are fixedly installed with a movable plate 809. The wiping cloth 9 is fixedly installed on the left side of the movable plate 809. A limiting slide groove 802 and a slot 805 are provided on the left side of the fixed block 801. A limiting slider 803 is slidably installed on the inner wall surface of the limiting slide groove 802. The right end of the first plug block 804 is fixedly connected to the surface of the limiting slider 803. The second plug block 806 is slidably inserted on the inner wall surface of the slot 805. A threaded rod 807 is rotatably inserted on the right side of the fixed block 801. The threaded rod 807 is rotatably arranged in the slot 805. The second plug block 806 is threadedly installed on the surface of the threaded rod 807. A rotating block 808 is fixedly installed on the right end surface of the threaded rod 807.

[0039] Specifically, rotating the rotary block 808 drives the threaded rod 807 to rotate, so that the second plug-in block 806 which is threadedly installed on the surface of the threaded rod 807 and slidably installed on the inner wall surface of the slot 805 moves left and right, thereby driving the movable plate 809 fixedly connected to the left side of the second plug-in block 806 to move left and right, and finally driving the wiping cloth 9 fixedly installed on the left side of the movable plate 809 to move left and right. When the wiping cloth 9 protrudes out of the wet wiping component 5 and the wiper component 7, the vehicle window can be dry wiped. When the wet wiping component 5 protrudes out of the wiping cloth 9, the wiping cloth 9 will not hinder the normal operation of the wet wiping component 5 and the wiper component 7. The cooperation of the limiting slider 803 and the limiting slide groove 802 can prevent the second plug-in block 806 from moving excessively to the left and escaping from the left side of the fixed block 801, thereby ensuring the stability of the translation of the movable plate 809.

[0040] In summary: the wet wiping component 5 and the wiper component 7 are moved in contact with the window surface through the handheld frame 3, and the wet wiping component 5 draws cleaning fluid from the water storage tank 11 to wet-wipe the window, which can soften stubbornly adhered dirt and make the removal of dirt easier and faster. The wiper component 7 can not only scrape off the water stains and stains remaining on the window surface by the wet wiping component 5, but also discharge the sewage to the water collecting component 6 and finally to the dirt storage tank 10 during the scraping process, so as to collect the sewage. After the main cleaning is completed by the wet wiping component 5 and the wiper component 7, the telescopic mechanism 8 drives the wiping cloth 9 to retract, so that the wiping cloth 9 protrudes from the wet wiping component 5 and the wiper component 7, thereby dry-wiping the window surface to further remove the residual trace water stains and stains. The combination of wet wiping, wiping and dry wiping not only improves the cleaning efficiency of the window, but also effectively improves the cleaning effect of the window, especially reduces the difficulty of cleaning stubborn stains.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A car window dust removal device for car maintenance, characterized in that: The invention comprises a base (1) and a moving component (2), wherein the moving component (2) is provided on the surface of the base (1), a dirt storage box (10), a water storage box (11) and a hanging frame (12) are fixedly mounted on the top surface of the base (1), a wet wiping component (5) and a water collecting component (6) are fixedly mounted on the surface of a hand-held frame (3), wherein the wet wiping component (5) is fixedly mounted on the top surface of the water collecting component (6), a hanging block (4) is fixedly mounted on one end of the hand-held frame (3) away from the wet wiping component (5), and the hanging block (4) can be hung on the surface of the hanging frame (12), a wiper component (7) is fixedly mounted on the liquid inlet side surface of the water collecting component (6), a telescopic mechanism (8) is fixedly mounted on the top surface of the wet wiping component (5), and a wiping cloth (9) is fixedly mounted on the surface of the telescopic part of the telescopic mechanism (8).

2. A car window dust removal device for car maintenance according to claim 1, characterized in that: The moving assembly (2) comprises a support column (201), the support column (201) is fixedly mounted at the four corners of the bottom surface of the base (1), a roller (202) is fixedly mounted on the bottom surface of the support column (201), a push handle (203) is fixedly mounted on the back surface of the base (1), and the mounting frame (12) comprises a vertical plate (121), the vertical plate (121) is fixedly mounted on the top surface of the base (1), a hook (122) is fixedly mounted on the surface of the vertical plate (121), the number of the hooks (122) is two and the spacing is arranged to match the specifications of the elbow handle (301) and the mounting block (4), and the mounting block (4) is mounted on the surfaces of the two hooks (122).

3. The vehicle window dust removal device for vehicle maintenance according to claim 1, characterized in that: The handheld frame (3) comprises an elbow handle (301), a mounting plate (303) is fixedly mounted on the surface of the elbow handle (301), an anti-slip sleeve (302) is fixedly sleeved on the surface of the elbow handle (301), and the wet wiping assembly (5) and the water collecting assembly (6) are both fixedly mounted on the left side of the mounting plate (303).

4. The vehicle window dust removal device for vehicle maintenance according to claim 3, characterized in that: The wet wiping assembly (5) comprises a water storage box (501), the water storage box (501) is fixedly mounted on the left side of the mounting plate (303), a water pipe (502) is fixedly inserted on the left side of the water storage box (501), a fixing plate (503) is fixedly sleeved on the surface of the water pipe (502), a cleaning sponge (504) is fixedly installed on the left side of the fixing plate (503), a water supply pipe (505) is fixedly installed on the top surface of the water storage box (501), a water pump (506) is provided on the surface of the water supply pipe (505), the water supply pipe (505) is fixedly inserted on the surface of the water storage tank (11), the cleaning sponge (504) is arranged in contact with the end of the water pipe (502), and the water pipe (502), the water storage box (501), the water supply pipe (505) and the water storage tank (11) are connected.

5. The vehicle window dust removal device for vehicle maintenance according to claim 4, characterized in that: The water collecting component (6) comprises a water collecting hopper (601), the water collecting hopper (601) is fixedly connected to the bottom surface of the water storage box (501) and the left side surface of the mounting plate (303), the left side surface of the water collecting hopper (601) is provided with an opening, a connector (602) is fixedly installed at the bottom end of the water collecting hopper (601), a return pipe (603) is fixedly connected to the bottom end of the connector (602), the return pipe (603) is fixedly inserted into the surface of the dirt storage box (10), and the water collecting hopper (601), the connector (602), the return pipe (603) and the dirt storage box (10) are connected.

6. The vehicle window dust removal device for vehicle maintenance according to claim 5, characterized in that: The wiper assembly (7) comprises a bottom inclined plate (701) and a side plate (702), wherein the bottom inclined plate (701) is fixedly mounted at the lower end of the opening, and the side plates (702) are fixedly mounted at the front and rear sides of the opening, and wiper strips (703) are fixedly mounted on the left sides of the bottom inclined plate (701) and the side plates (702).

7. The vehicle window dust removal device for vehicle maintenance according to claim 1, characterized in that: The telescopic mechanism (8) comprises a fixed block (801), the fixed block (801) is fixedly mounted on the top surface of the water storage box (501), a first plug-in block (804) and a second plug-in block (806) are slidably mounted on the left side of the fixed block (801), a movable plate (809) is fixedly mounted on the left side of the first plug-in block (804) and the second plug-in block (806), the wiping cloth (9) is fixedly mounted on the left side of the movable plate (809), a limiting slide groove (802) and a slot (805) are provided on the left side of the fixed block (801), and the limiting slide groove (802) and the slot (805) are provided on the left side of the fixed block (801). A limit slider (803) is slidably installed on the inner wall surface of the groove (802); the right end of the first plug block (804) is fixedly connected to the surface of the limit slider (803); the second plug block (806) is slidably inserted into the inner wall surface of the slot (805); a threaded rod (807) is rotatably inserted into the right side of the fixed block (801); the threaded rod (807) is rotatably arranged in the slot (805); the second plug block (806) is threadedly installed on the surface of the threaded rod (807); and a rotating block (808) is fixedly installed on the right end surface of the threaded rod (807).

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