Leather product surface cleaning device

Abstract

The utility model discloses a leather product surface cleaning device, and particularly relates to the technical field of leather product processing, the leather product surface cleaning device comprises a square bin mechanism, two spray head mechanisms are arranged above the inner wall of the square bin mechanism, and a cleaning liquid box mechanism is fixedly connected above the spray head mechanisms; a rotating belt mechanism is fixedly connected to the upper portion of the square bin mechanism, a brush mechanism is rotatably connected to the bottom of the rotating belt mechanism, a conveying belt mechanism is arranged below the inner wall of the square bin mechanism, and baffle mechanisms are movably connected to the left side and the right side of the outer wall of the conveying belt mechanism. According to the leather product surface cleaning device, leather of various widths is limited by adjusting the baffle mechanism, a water pipe swings left and right through the rear spray head mechanism to spray the surface of the leather of various widths more comprehensively, and dust on the surface of the leather of various widths can be brushed away by adjusting a second brush on the brush mechanism; and cleaning is more flexible, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leather product processing, in particular to a leather product surface cleaning device. Background Art

[0002] Leather is the animal skin that has been denatured and is not easily decayed through physical and chemical processes such as hair removal and tanning. Leather has good flexibility, wear resistance and air permeability, and is often used to make various daily necessities and industrial products. When leather products are processed, the surface needs to be cleaned;

[0003] At present, on the market, the nozzle is fixed in one direction to spray the leather surface, so the spraying on the leather surface is not comprehensive. When cleaning a wider leather surface, the cleaning is not comprehensive, and the position will shift when being cleaned on the conveyor belt. Content of the Utility Model

[0004] The purpose of the utility model is to provide a leather product surface cleaning device to solve the problems that the nozzle sprays the leather surface not comprehensively, the cleaning is not comprehensive when encountering larger leather, and the position of the leather will shift during cleaning as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a leather product surface cleaning device, including a square bin mechanism. Above the inner wall of the square bin mechanism, two nozzle mechanisms are arranged. Above the nozzle mechanism, a cleaning liquid tank mechanism is fixedly connected. Above the square bin mechanism, a rotating belt mechanism is fixedly connected. At the bottom of the rotating belt mechanism, a brush mechanism is rotatably connected. Below the inner wall of the square bin mechanism, a conveyor belt mechanism is arranged. On the left and right sides of the outer wall of the conveyor belt mechanism, a baffle mechanism is movably connected.

[0006] Preferably: The square bin mechanism includes a square bin. Below the inner wall of the square bin, an inclined square wall is fixedly connected. On the right side of the inclined square wall, a water outlet hole is opened. On the right side below the inner wall of the square bin, a water outlet pipe is fixedly connected. On the front and rear sides above the inner wall of the square bin, T-shaped grooves are opened.

[0007] Preferably: The conveyor belt mechanism includes a transfer belt. On the front and rear sides of the inner wall of the transfer belt, a rotating column is rotatably connected. On the right side of the front rotating column, a motor I is fixedly connected. The transfer belt is provided with a number of holes that penetrate inside and outside.

[0008] Preferably, the baffle mechanism includes a baffle. On the front and rear sides above the baffle, there are slider rods fixedly connected. The outer wall of the slider rod is slidably connected to the inner wall of the T-shaped groove. Below the right side of the top of the slider rod, there is a threaded hole that penetrates inside and outside. A screw is threadedly connected to the inner wall of the threaded hole. When the baffle moves, the slider rod slides on the inner wall of the T-shaped groove, and then the slider rod is squeezed to stop by inserting the screw into the threaded hole of the slider rod and rotating it.

[0009] Preferably, the cleaning liquid tank mechanism includes a water tank. On the left side of the water tank, there is a water pump fixedly connected. Above the water tank, there is a circular hole one that penetrates inside and outside. A snap cover is clamped to the inner wall of the circular hole one. On the right side of the water tank, there is a water pipe one fixedly connected. The other end of the water pipe one is connected to a water source. The output end of the water pump is fixedly connected to a water pipe two.

[0010] Preferably, the nozzle mechanism includes a square bin two. Above the inner wall of the square bin two, there is a threaded rod that penetrates inside and outside and is rotatably connected. Above the inner wall of the square bin two and near the bottom of the threaded rod, there is a baffle three fixedly connected. On the right side of the threaded rod, there is a motor two fixedly connected. Below the threaded rod, there is a meshing block engaged. The meshing block is slidably connected to the baffle three. At the bottom of the meshing block, there is a cylindrical rod one fixedly connected. On the front and rear sides below the inner wall of the square bin two, there are movable sleeves fixedly connected.

[0011] Preferably, four water pipes three are fixedly connected to the bottom of the water pipe two. The bottom outer surface of the water pipe three is provided with a hard water pipe. A fixing band is fixedly connected to the outer surface of the hard water pipe. On the left and right sides of the outer surfaces of the front and rear fixing bands, there are sector blocks fixedly connected by screws. A sector groove is opened at the top of the sector block. The bottom of the cylindrical rod one is slidably connected to the bottom of the inner wall of the sector groove. Cylinders are fixedly connected to the front and rear outer surfaces of the sector block. The outer wall of the cylinder is rotatably connected to the inner wall of the movable sleeve.

[0012] Preferably, the rotating belt mechanism includes a motor three. The output end of the motor three is fixedly connected to a circular meshing column one. The outer surface of the circular meshing column one is meshed with a meshing belt. The inner surface of the meshing belt is meshed with a circular meshing column two.

[0013] Preferably, the brush mechanism includes a brush handle, the top of the brush handle is fixedly connected to the bottom of the second circular meshing column, the bottom of the brush handle is fixedly connected with a plurality of first bristles, the outer surface of the top of the brush handle is provided with a plurality of rectangular grooves in an annular array, and circular holes two are provided on one side far from the center point of the brush handle on the two vertical surfaces of the rectangular groove. A second rotating column is rotatably connected to the inner wall of the circular hole two. A threaded hole is provided at the bottom of the inner wall of the rectangular groove far from the center point of the brush handle. A second brush is fixedly connected to the opposite surfaces of the two second rotating columns on the left and right sides. A second threaded hole perpendicular to the threaded hole is provided in the second brush. A second screw is threadedly connected to the inner walls of the threaded hole and the second threaded hole for fixing. There are a plurality of third bristles on the outer surface of the top of the second brush.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model can drive the threaded rod to rotate through the output end of the second motor, so that the meshing block can drive the cooperation of the first cylindrical rod and the sector block to swing left and right on the third water pipe, spraying the leather surface of various widths more comprehensively. And by adjusting the second brush on the brush mechanism, the dust on the leather surface of various widths can be brushed, making the cleaning more flexible and improving the cleaning efficiency.

[0016] 2. The present utility model can limit the leather of various widths by adjusting the baffle mechanism so that it does not shift during cleaning, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 It is a sectional view of the structure of the present utility model.

[0019] Figure 3 It is a schematic diagram of the baffle mechanism of the structure of the present utility model.

[0020] Figure 4 It is a schematic diagram of the cleaning liquid tank mechanism of the structure of the present utility model.

[0021] Figure 5 It is the Figure 4 partial structure schematic diagram at position A of the structure of the present utility model.

[0022] Figure 6 It is a schematic diagram of the brush mechanism and the rotating belt mechanism of the structure of the present utility model.

[0023] In the figure: 1. Square bin mechanism; 2. Sprayer mechanism; 3. Brush mechanism; 4. Conveyor belt mechanism; 5. Baffle mechanism; 6. Cleaning liquid tank mechanism; 7. Rotating belt mechanism; 11. Square bin; 12. Oblique square wall; 13. Water outlet pipe; 14. Water outlet hole; 15. T-shaped groove; 41. Transfer belt; 42. Rotating column; 43. Motor 1; 51. Baffle; 52. Slide bar; 53. Screw; 61. Water tank; 62. Water pump; 63. Snap cover; 64. Water pipe 1; 65. Water pipe 2; 21. Second square bin; 22. Threaded rod; 23. Motor 2; 24. Meshing block; 25. First cylindrical rod; 26. Water pipe 3; 27. Sector block; 28. Movable sleeve; 29. Fixed belt; 211. Third baffle; 71. Motor 3; 72. First circular meshing column; 73. Meshing belt; 74. Second circular meshing column; 31. Brush handle; 32. First brush hair; 33. Second rotating column; 34. Screw 2; 35. Second brush Detailed implementation manners

[0024] 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.

[0025] Please refer to Figure 1 , the present invention provides a technical solution: a leather product surface cleaning device, including a square bin mechanism 1, two sprayer mechanisms 2 are arranged above the inner wall of the square bin mechanism 1, a cleaning liquid tank mechanism 6 is fixedly connected above the sprayer mechanism 2, a rotating belt mechanism 7 is fixedly connected above the square bin mechanism 1, a brush mechanism 3 is rotatably connected to the bottom of the rotating belt mechanism 7, a conveyor belt mechanism 4 is arranged below the inner wall of the square bin mechanism 1, and baffle mechanisms 5 are movably connected to the left and right sides of the outer wall of the conveyor belt mechanism 4. The leather is conveyed through the conveyor belt mechanism 4, the baffle mechanism 5 is adjusted to limit leathers of various widths, then the cleaning liquid tank mechanism 6 sends water to the sprayer mechanism 2, and then the sprayer mechanism 2 swings the water left and right and sprays it onto the leather surface. The rotating belt mechanism 7 drives the brush mechanism to rotate to brush the leather surface.

[0026] Please refer to Figures 2-3, the present utility model provides a technical solution: The square bin mechanism 1 includes a square bin 11. Below the inner wall of the square bin 11, an inclined square wall 12 is fixedly connected. An outlet hole 14 is opened on the right side of the inclined square wall 12. Below the right side of the inner wall of the square bin 11, a water outlet pipe 13 is fixedly connected. T-shaped grooves 15 are opened on the front and rear sides above the inner wall of the square bin 11. The conveyor belt mechanism 4 includes a conveyor belt 41. Rotating columns 42 are rotatably connected to the front and rear sides of the inner wall of the conveyor belt 41. On the right side of the front rotating column 42, a motor 43 is fixedly connected. A number of through holes are opened in the conveyor belt 41. The baffle mechanism 5 includes a baffle 51. Slide bar 52 is fixedly connected to the front and rear sides above the baffle 51. The outer wall of the slide bar 52 is slidably connected to the inner wall of the T-shaped groove 15. A through threaded hole is opened below the right side of the top of the slide bar 52. A screw 53 is threadedly connected to the inner wall of the threaded hole. The output end of the motor 43 rotates the rotating column 42, causing the rotating column 42 to drive the conveyor belt 41 to rotate and transfer the leather. Water flows out of the holes in the conveyor belt 41, flows onto the inclined square wall 12, and flows out through the outlet hole 14 and the water outlet pipe 13. The baffle 51 moves on the outer surface of the conveyor belt 41, causing the slide bar 52 to slide on the inner wall of the T-shaped groove 15. Then, by inserting the screw into the threaded hole of the slide bar 52 and rotating it, the slide bar 52 is squeezed to stop limiting leather of various widths.

[0027] Please refer to Figures 4-5, the present utility model provides a technical solution: The cleaning liquid tank mechanism 6 includes a water tank 61. A water pump 62 is fixedly connected to the left side of the water tank 61. A circular hole one that penetrates both inside and outside is opened above the water tank 61. A snap cover 63 is clamped to the inner wall of the circular hole one. A water pipe one 64 is fixedly connected to the right side of the water tank 61. The other end of the water pipe one 64 is connected to a water source. The output end of the water pump 62 is fixedly connected to a water pipe two 65. The spraying head mechanism 2 includes a square bin two 21. A threaded rod 22 that penetrates both inside and outside is rotatably connected above the inner wall of the square bin two 21. A baffle three 211 is fixedly connected above the inner wall of the square bin two 21 near the bottom of the threaded rod 22. A motor two 23 is fixedly connected to the right side of the threaded rod 22. A meshing block 24 is meshed and connected below the threaded rod 22. The meshing block 24 is slidably connected to the baffle three 211. A cylindrical rod one 25 is fixedly connected to the bottom of the meshing block 24. Two fixing sleeves 28 are fixedly connected to the front and rear sides below the inner wall of the square bin two 21. Four water pipes three 26 are fixedly connected to the bottom of the water pipe two 65. A hard water pipe is arranged on the outer surface of the bottom end of the water pipe three 26. A fixing belt 29 is fixedly connected to the outer surface of the hard water pipe. The left and right sides of the outer surfaces of the front and rear fixing belts 29 are fixedly connected with sector blocks 27 by screws. A sector groove is opened at the top of the sector block 27. The bottom of the cylindrical rod one 25 is slidably connected to the bottom inner wall of the sector groove of the sector block 27. Cylinders are fixedly connected to the front and rear outer surfaces of the sector block 27. The outer wall of the cylinder is rotatably connected to the inner wall of the fixing sleeve 28. After pouring the cleaning liquid into the water tank 61, the snap cover 63 is clamped to the circular hole one above the water tank 61 to prevent water from splashing. Then the water pipe one 64 is connected to the water source. The water pump 62 pumps water into the water tank 61 to mix the cleaning liquid and water in the water tank 61. Then the water pump 62 transports the mixed cleaning liquid and water from the output end to the water pipe two 65 and the water pipe three 26. Then the output end of the motor two 23 rotates the threaded rod 22, so that the threaded rod 22 drives the meshing block 24 engaged with it to move left and right with the baffle three 211. Then the top of the cylindrical rod one 25 moves at the bottom inner wall of the sector groove of the sector block 27, so that the outer wall of the cylinder of the sector block 27 rotates with the inner wall of the fixing sleeve 28, and the sector block 27 drives the hard water pipe on the outer surface of the top end of the water pipe three 26 to swing left and right to spray the mixed cleaning liquid and water onto the surface of the leather.

[0028] Please refer to Figure 6, the present utility model provides a technical solution: The rotating belt mechanism 7 includes a third motor 71. The output end of the third motor 71 is fixedly connected with a first circular meshing column 72. The outer surface of the first circular meshing column 72 is meshed with a meshing belt 73. The inner surface of the meshing belt 73 is meshed with a second circular meshing column 74. The brush mechanism 3 includes a brush handle 31. The top of the brush handle 31 is fixedly connected with the bottom of the second circular meshing column 74. The bottom of the brush handle 31 is fixedly connected with a number of first bristles 32. A number of rectangular grooves in an annular array are provided on the outer surface of the top of the brush handle 31. A second round hole is provided on one side of each of the two vertical surfaces of the rectangular groove away from the center point of the brush handle 31. A second rotating column 33 is rotatably connected to the inner wall of the second round hole. A threaded hole is provided at the bottom of the inner wall of the rectangular groove away from the center point of the brush handle 31. A second brush 35 is fixedly connected to the opposite surfaces of the two second rotating columns 33 on the left and right sides. A second threaded hole perpendicular to the threaded hole is provided in the second brush 35. A second screw 34 is threadedly connected to the inner walls of the threaded hole and the second threaded hole to fix it. There are a number of third bristles on the outer surface of the top of the second brush 35. By rotating the first circular meshing column 72 at the output end of the third motor 71, the outer surface of the first circular meshing column 72 meshes and drives the meshing belt 73. The inner wall of the meshing belt 73 meshes and drives the second circular meshing column 74. The second circular meshing column 74 drives the brush handle 31 to rotate so that the first bristles 32 at the bottom of the brush handle 31 brush the leather surface. Then, the second brush 35 can be rotated upward through the rotation of the outer wall of the second rotating column 33 and the inner wall of the second round hole of the brush handle 31 until the third bristles are close to the surface of the conveyor belt 41. Then, the second screw 34 is inserted into the second threaded hole at the bottom of the second brush 35 and rotated to the bottom of the threaded hole of the brush handle 31 for fixation to brush leathers of various widths. Then, when not in use, the second screw 34 can be rotated and removed, and the second brush 35 can be rotated into the rectangular groove of the brush handle 31, and then the second screw 34 is inserted into the second threaded hole at the bottom of the second brush 35 for fixation and storage.

[0029] Working principle: First, the output end of the first motor 43 rotates the rotating column 42, causing the rotating column 42 to drive the conveyor belt 41 to rotate and transfer the leather. Water flows out from the holes of the conveyor belt 41 and onto the upper surface of the trapezoidal wall 12, and then flows out through the water outlet holes 14 and the water outlet pipe 13. The baffle 51 moves on the outer surface of the conveyor belt 41, causing the slider rod 52 to slide on the inner wall of the T-shaped groove 15. Then, by inserting a screw into the threaded hole of the slider rod 52 and rotating it, the slider rod 52 is squeezed to stop limiting leather of various widths. After pouring the cleaning liquid into the water tank 61, the snap-on cover 63 is snapped onto the circular hole one above the water tank 61 to prevent water splashing. Then, the first water pipe 64 is connected to the water source, and the water pump 62 pumps water into the water tank 61 to mix the cleaning liquid and water in the water tank 61. Then, the water pump 62 transports the mixed cleaning liquid and water from the output end to the second water pipe 65 and the third water pipe 26. Then, the output end of the second motor 23 rotates the threaded rod 22, causing the threaded rod 22 to drive the engaged engaging block 24 and the third baffle 211 to move left and right. Then, the top of the first cylindrical rod 25 moves at the bottom of the inner wall of the fan-shaped groove of the fan-shaped block 27, causing the outer cylindrical wall of the fan-shaped block 27 to rotate with the inner wall of the movable sleeve 28, so that the fan-shaped block 27 drives the hard water pipe on the outer surface of the top end of the third water pipe 26 to swing left and right to spray the turbid cleaning liquid and water onto the surface of the leather. Then, the output end of the third motor 71 rotates the first circular engaging column 72. The outer surface of the first circular engaging column 72 drives the engaging belt 73 through engagement, and the inner wall of the engaging belt 73 drives the second circular engaging column 74 through engagement. The second circular engaging column 74 drives the brush handle 31 to rotate, so that the first bristles 32 at the bottom of the brush handle 31 brush the surface of the leather. Then, the outer wall of the second rotating column 33 can rotate with the inner wall of the second circular hole of the brush handle 31 to rotate the second brush 35 upward until the third bristles are close to the surface of the conveyor belt 41. Then, the second screw 34 is inserted into the threaded hole at the bottom of the second brush 35 and rotated to the bottom of the threaded hole of the brush handle 31 for fixation, so as to clean leather of various widths. Then, when not in use, the second screw 34 can be rotated and removed, and the second brush 35 can be rotated into the rectangular groove of the brush handle 31, and then the second screw 34 is inserted into the threaded hole at the bottom of the second brush 35 for fixation and storage.

[0030] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface cleaning device for leather products, comprising a square bin mechanism (1), characterized in that: Above the inner wall of the square bin mechanism (1), there are two spray head mechanisms (2) arranged. Above the spray head mechanism (2), there is a cleaning liquid tank mechanism (6) fixedly connected. Above the square bin mechanism (1), there is a rotating belt mechanism (7) fixedly connected. At the bottom of the rotating belt mechanism (7), there is a brush mechanism (3) fixedly connected. Below the inner wall of the square bin mechanism (1), there is a conveyor belt mechanism (4). On the left and right sides of the outer wall of the conveyor belt mechanism (4), there are baffle mechanisms (5) movably connected.

2. The surface cleaning device for leather products according to claim 1, wherein: The square bin mechanism (1) includes a square bin (11). Below the inner wall of the square bin (11), there is an inclined square wall (12) fixedly connected. On the right side of the inclined square wall (12), there is a water outlet hole (14). Below the inner wall of the right side of the square bin (11), there is a water outlet pipe (13) fixedly connected. On the front and rear sides above the inner wall of the square bin (11), there are T-shaped grooves (15) opened.

3. A surface cleaning device for leather products according to claim 1, characterized in that: The conveyor belt mechanism (4) includes a conveyor belt (41). On the front and rear sides of the inner wall of the conveyor belt (41), there are rotating columns (42) fixedly connected. On the right side of the front rotating column (42), there is a motor one (43) fixedly connected. The conveyor belt (41) is provided with a number of holes that penetrate inside and outside.

4. The surface cleaning device for leather products according to claim 2, wherein: The baffle mechanism (5) includes a baffle (51). On the front and rear sides above the baffle (51), there are slider rods (52) fixedly connected. The outer wall of the slider rod (52) is slidably connected with the inner wall of the T-shaped groove (15). Below the top right side of the slider rod (52), there is a threaded hole that penetrates inside and outside. Inside the threaded hole of the threaded hole, there is a screw (53) threadedly connected. When the baffle (51) moves, the slider rod (52) slides on the inner wall of the T-shaped groove (15), and then the slider rod (52) is squeezed to stop by inserting the screw into the threaded hole of the slider rod (52) and rotating.

5. The surface cleaning device for leather products according to claim 1, characterized in that: The cleaning liquid tank mechanism (6) includes a water tank (61). On the left side of the water tank (61), there is a water pump (62) fixedly connected. Above the water tank (61), there is a circular hole one that penetrates inside and outside. Inside the inner wall of the circular hole one, there is a snap cover (63) clamped. On the right side of the water tank (61), there is a water pipe one (64) fixedly connected. The other end of the water pipe one (64) is connected to a water source. The output end of the water pump (62) is fixedly connected with a water pipe two (65).

6. The surface cleaning device for leather products according to claim 5, wherein: The spray head mechanism (2) includes a square bin two (21). Above the inner wall of the square bin two (21), there is a threaded rod (22) that rotates and penetrates inside and outside. Above the inner wall of the square bin two (21) and near the bottom of the threaded rod (22), there is a baffle three (211) fixedly connected. On the right side of the threaded rod (22), there is a motor two (23) fixedly connected. Below the threaded rod (22), there is a meshing block (24) meshingly connected. The meshing block (24) is slidably connected with the baffle three (211). At the bottom of the meshing block (24), there is a cylindrical rod one (25) fixedly connected. On the front and rear sides below the inner wall of the square bin two (21), there are movable sleeves (28) fixedly connected.

7. The surface cleaning device for leather products according to claim 6, characterized in that: Four water pipes three (26) are fixedly connected to the bottom of the water pipe two (65). A hard water pipe is arranged on the outer surface of the bottom end of the water pipe three (26). A fixing belt (29) is fixedly connected to the outer surface of the hard water pipe. Sector-shaped blocks (27) are fixedly connected to the left and right sides of the outer surfaces of the two fixing belts (29) on the front and rear sides through screws. A sector-shaped groove is formed at the top of the sector-shaped block (27). The bottom of the cylindrical rod one (25) is slidably connected to the bottom of the inner wall of the sector-shaped groove. Cylinders are fixedly connected to the front and rear outer surfaces of the sector-shaped block (27). The outer wall of the cylinder is rotatably connected to the inner wall of the movable sleeve (28).

8. The surface cleaning device for leather products according to claim 1, wherein: The rotating belt mechanism (7) includes a motor three (71). A circular meshing column one (72) is fixedly connected to the output end of the motor three (71). A meshing belt (73) is meshed with the outer surface of the circular meshing column one (72). A circular meshing column two (74) is meshed with the front side of the inner surface of the meshing belt (73).

9. The surface cleaning device for leather products according to claim 8, characterized in that: The brush mechanism (3) includes a brush handle (31). The top of the brush handle (31) is fixedly connected to the bottom of the circular meshing column two (74). A plurality of bristles one (32) are fixedly connected to the bottom of the brush handle (31). A plurality of rectangular grooves in an annular array are formed on the outer surface of the top of the brush handle (31). Round holes two are formed on one side of the two vertical surfaces of the rectangular groove away from the center point of the brush handle (31). A rotating column two (33) is rotatably connected to the inner wall of the round hole two. A threaded hole is formed on one side of the inner wall of the rectangular groove away from the center point of the brush handle (31). A brush two (35) is fixedly connected to the opposite surfaces of the two rotating columns two (33) on the left and right sides. A threaded hole two perpendicular to the threaded hole is formed in the brush two (35). A screw two (34) is threadedly connected to the inner walls of the threaded hole and the threaded hole two to fix it. A plurality of bristles three are arranged on the outer surface of the top of the brush two (35).

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