Music score reading board

Abstract

The utility model relates to the technical field of music teaching, in particular to a music score recognition plate which comprises a moving assembly, a height adjusting assembly is installed on the top of the moving assembly, an installation assembly is installed on the top of the height adjusting assembly, and a score recognition plate assembly is installed on the inner wall of the installation assembly. The two sides of the installation assembly and the front end of the score recognition plate assembly are provided with cleaning assemblies. And the mounting assembly comprises a mounting shell, a second limiting block is mounted on the inner wall of the mounting shell, and a U-shaped shell is mounted at the top of the mounting shell. According to the improved music score recognition plate, through the installation assembly and the music score recognition plate assembly, the area of the music score recognition plate can be expanded according to needs, the applicability and flexibility of the music score recognition plate in use are improved, meanwhile, when the music score recognition plate is used, a score recognition plate expansion plate is pushed, the surface of the music score recognition plate can be automatically wiped and cleaned, and the music score recognition plate is convenient to use. And the use convenience of the music score recognition plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of music teaching, in particular to a music score recognition board. Background Art

[0002] Music teaching is a process involving multiple levels, including music theory, performance techniques, music history, music appreciation, etc. Effective music teaching can not only help students master music skills, but also stimulate their creativity and deep understanding of music.

[0003] A music recognition board is a teaching tool used to help students learn music. It usually includes five-line staves, notes and other symbols. It is similar to a blackboard, and notes can be drawn on the staves to facilitate recognition and learning by multiple students.

[0004] In the process of realizing the present utility model, the inventors found that the prior art had the following problems: 1. The existing ordinary music recognition board has a fixed area when in use. When teaching complex music knowledge, the board area is insufficient and cannot meet the teaching needs; 2. After use, the existing ordinary music recognition board needs to be wiped with a board eraser, which is time-consuming and laborious. Utility Model Content

[0005] The purpose of the present utility model is to provide a music score recognition board to solve the problems raised in the above background technology. To achieve the above purpose, the present utility model provides the following technical solutions: a music score recognition board, comprising a moving component, a height adjustment component is installed on the top of the moving component, a mounting component is installed on the top of the height adjustment component, a score recognition board component is installed on the inner wall of the mounting component, and cleaning components are installed on both sides of the mounting component and the front end of the score recognition board component.

[0006] The mounting assembly comprises a mounting shell, a second limiting block is mounted on the inner wall of the mounting shell, and a U-shaped shell is mounted on the top of the mounting shell.

[0007] The spectrum recognition board assembly includes a spectrum recognition board main body installed on the inner wall of a mounting shell, a first spectrum recognition board extension plate and a second spectrum recognition board extension plate are slidably installed on the inner wall of the mounting shell from left to right, a first connecting rod is rotatably installed through the rear end of the U-shaped shell, a second connecting rod is rotatably installed through the rear end of the mounting shell, a first gear is installed on the outer wall of the first connecting rod, a second gear is installed on the front end of the first connecting rod, a third gear is installed on the outer wall of the second connecting rod, a fourth gear is installed on the front end of the second connecting rod, a first rack and a second rack are meshed and installed on the outer wall of the third gear, a third limiting block is installed on one end of the first rack, a third rack and a fourth rack are meshed and installed on the outer wall of the second gear, a first connecting block is installed at the front end of the fourth rack and close to the right side, a second connecting block is installed at the front end of the third rack and close to the left side, and a toothed belt is meshed and installed on the outer wall of the first gear.

[0008] Further preferably, the moving component includes a base plate, a support plate is installed on the outer wall of the base plate, a universal wheel with brakes is installed on the bottom of the support plate, and the support plate and the universal wheel with brakes are provided as a group, and there are three groups in total, and the three groups of support plates and universal wheels with brakes are distributed in a ring with the vertical center line of the support plate as the origin.

[0009] Further preferably, the height adjustment assembly includes a fixed tube installed on the top of the base plate, a threaded rod is rotatably installed through the bottom of the inner wall of the fixed tube, a first bevel gear is installed on the outer wall of the threaded rod, a first limit block is installed on the top of the threaded rod, a movable tube is threadedly installed on the outer wall of the threaded rod, a rotating rod is rotatably installed through the rear end of the fixed tube, a second bevel gear is installed at the front end of the rotating rod, a worm gear is installed on the outer wall of the rotating rod, a shell is installed on the rear end of the fixed tube, a worm is rotatably installed through one side of the inner wall of the shell, a rotating handle is installed on one end of the worm, the movable tube is slidably installed on the inner wall of the fixed tube, the first bevel gear is meshingly installed with the second bevel gear, and the worm gear is meshingly installed with the worm.

[0010] Further preferably, a third gear is meshingly installed on the inner wall of the toothed belt, the first spectrum recognition board extension plate is connected to the first rack, the second spectrum recognition board extension plate is connected to the second rack, cleaning components are installed at the bottom of the first connecting block and the second connecting block, and the third gear forms a transmission mechanism with the first gear through the toothed belt.

[0011] Further preferably, the top of the mounting shell, the top of the inner wall, the bottom of the inner wall and the top of the inner wall of the U-shaped shell are all provided with T-shaped rails, and the top and bottom of the first spectrum recognition board extension plate, the top and bottom of the second spectrum recognition board extension plate, the bottom of the third rack and the top of the fourth rack are all provided with T-shaped sliding strips.

[0012] Further preferably, small magnetic patches are provided on the left side of the inner wall of the mounting shell and on one side of the rear end of the first spectrum recognition board expansion board.

[0013] Further preferably, the cleaning assembly includes a mounting tube, a cleaning plate is inserted into the inner wall of the mounting tube, screw holes are provided on the top of the mounting tube and the top of the cleaning plate, and the mounting tube and the cleaning plate are connected by butterfly screws.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, by installing components and music recognition board components, when expanding the music recognition board, the handle on one side of the first music recognition board extension plate is pulled to drive the first music recognition board extension plate to move, and when the first music recognition board extension plate moves, the fourth gear is driven to rotate through the first rack, and when the fourth gear rotates, the second music recognition board extension plate is driven to move through the second rack, and the first music recognition board extension plate and the second music recognition board extension plate are expanded outward at the same time, which can increase the area of ​​the music recognition board and improve the applicability and flexibility of the music recognition board when used.

[0016] In the utility model, by installing components and music recognition board components, when the music recognition board is not needed, the first music recognition board extension plate is pushed, and the first music recognition board extension plate and the second music recognition board extension plate are simultaneously retracted inwards, and the cleaning cottons on the cleaning components on both sides of the installation shell wipe and clean the surfaces of the first music recognition board extension plate and the second music recognition board extension plate, and at the same time, the third gear drives the first gear, the first connecting rod and the second gear to rotate through the toothed belt, and the second gear rotates and drives the third rack and the fourth rack to move, and the third rack and the fourth rack drive the two cleaning components to move, and the cleaning cottons on the two cleaning components clean the main body of the music recognition board, and when the use of the music recognition board is finished, there is no need to manually use an eraser to wipe the music recognition board, thereby improving the convenience of using the music recognition board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a rear view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mobile component of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the height adjustment component of the utility model;

[0021] Figure 5 This is a schematic diagram of the full cross-section structure of the height adjustment component of the utility model;

[0022] Figure 6This is a schematic diagram of the installation assembly structure of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the spectrum recognition board assembly of the utility model;

[0024] Figure 8 For the utility model Figure 7 A is an enlarged structural diagram;

[0025] Fig. 9 This is a rear view structural diagram of the spectrum recognition board assembly of the utility model;

[0026] Fig.10 For the utility model Fig. 9 The enlarged structural diagram at B in FIG.

[0027] Fig.11 This is a schematic diagram of the structure of the cleaning component of the utility model.

[0028] In the figure: 1. moving assembly; 101. bottom plate; 102. support plate; 103. universal wheel with brake; 2. height adjustment assembly; 201. fixed tube; 202. threaded rod; 203. first bevel gear; 204. first stop block; 205. movable tube; 206. rotating rod; 207. second bevel gear; 208. worm gear; 209. housing; 2010. worm; 2011. rotating handle; 3. mounting assembly; 301. mounting shell; 302. second stop block; 303. U-shaped shell; 4. spectrum recognition board assembly; 401. spectrum recognition board Main body; 402, first spectrum recognition board extension plate; 403, second spectrum recognition board extension plate; 404, first connecting rod; 405, second connecting rod; 406, first gear; 407, second gear; 408, third gear; 409, fourth gear; 4010, first rack; 4011, second rack; 4012, third limit block; 4013, third rack; 4014, fourth rack; 4015, first connecting block; 4016, second connecting block; 4017, toothed belt; 5, cleaning assembly; 501, mounting tube; 502, cleaning plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 11The utility model provides a technical solution: a music score recognition board, comprising a moving component 1, a height adjustment component 2 is installed on the top of the moving component 1, a mounting component 3 is installed on the top of the height adjustment component 2, a score recognition board component 4 is installed on the inner wall of the mounting component 3, and cleaning components 5 are installed on both sides of the mounting component 3 and the front end of the score recognition board component 4.

[0031] The mounting assembly 3 includes a mounting shell 301 , a second limiting block 302 is mounted on the inner wall of the mounting shell 301 , and a U-shaped shell 303 is mounted on the top of the mounting shell 301 .

[0032] The spectrum recognition board assembly 4 includes a spectrum recognition board body 401 installed on the inner wall of the mounting shell 301, a first spectrum recognition board extension plate 402 and a second spectrum recognition board extension plate 403 are slidably mounted on the inner wall of the mounting shell 301 from left to right, a first connecting rod 404 is rotatably mounted through the rear end of the U-shaped shell 303, a second connecting rod 405 is rotatably mounted through the rear end of the mounting shell 301, a first gear 406 is mounted on the outer wall of the first connecting rod 404, a second gear 407 is mounted on the front end of the first connecting rod 404, a third gear 408 is mounted on the outer wall of the second connecting rod 405, and a second connecting rod 406 is mounted on the outer wall of the second connecting rod 405. A fourth gear 409 is installed at the front end of the connecting rod 405, a first rack 4010 and a second rack 4011 are meshed and installed on the outer wall of the third gear 408, a third limiting block 4012 is installed at one end of the first rack 4010, a third rack 4013 and a fourth rack 4014 are meshed and installed on the outer wall of the second gear 407, a first connecting block 4015 is installed at the front end of the fourth rack 4014 and near the right side, a second connecting block 4016 is installed at the front end of the third rack 4013 and near the left side, and a toothed belt 4017 is meshed and installed on the outer wall of the first gear 406.

[0033] In this embodiment, Figure 3 As shown, the moving assembly 1 includes a base plate 101, a support plate 102 is installed on the outer wall of the base plate 101, a universal wheel 103 with a brake is installed on the bottom of the support plate 102, and the support plate 102 and the universal wheel 103 with a brake are set as a group, and there are three groups in total, and the three groups of support plates 102 and universal wheels with brakes 103 are distributed in a ring shape with the vertical center line of the support plate 102 as the origin; the three groups of support plates 102 and universal wheels with brakes 103 can stably support the music notation recognition board, and the three universal wheels with brakes 103 are used to facilitate the movement of the music notation recognition board, thereby improving the stability of the music notation recognition board when in use.

[0034] In this embodiment, Figure 4 and Figure 5As shown, the height adjustment component 2 includes a fixed tube 201 installed on the top of the base plate 101, a threaded rod 202 is rotatably installed through the bottom of the inner wall of the fixed tube 201, a first bevel gear 203 is installed on the outer wall of the threaded rod 202, a first limit block 204 is installed on the top of the threaded rod 202, a movable tube 205 is threadedly installed on the outer wall of the threaded rod 202, a rotating rod 206 is rotatably installed through the rear end of the fixed tube 201, a second bevel gear 207 is installed at the front end of the rotating rod 206, a worm gear 208 is installed on the outer wall of the rotating rod 206, a shell 209 is installed at the rear end of the fixed tube 201, a worm 2010 is rotatably installed through one side of the inner wall of the shell 209, a rotating handle 2011 is installed at one end of the worm 2010, the movable tube 205 is slidably installed on the inner wall of the fixed tube 201, and the first bevel gear 204 is installed on the top of the threaded rod 202. The bevel gear 203 is meshed with the second bevel gear 207 and installed, and the worm wheel 208 is meshed with the worm 2010 and installed; when the rotating handle 2011 is rotated, the worm 2010 is driven to rotate, and at the same time, the worm 2010 drives the rotating rod 206 and the second bevel gear 207 to rotate through the worm wheel 208. When the second bevel gear 207 rotates, it drives the threaded rod 202 to rotate through the first bevel gear 203. When the threaded rod 202 rotates, it drives the movable tube 205 to move up and down, and at the same time drives the installation shell 301 installed on the top of the movable tube 205 to move, so that the height of the installation component 3 and the music recognition board component 4 can be adjusted according to needs. The first limit block 204 can prevent the movable tube 205 from falling off the threaded rod 202 when it moves upward on the threaded rod 202, which can improve the stability when adjusting the height of the music recognition board.

[0035] In this embodiment, Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, a third gear 408 is meshedly installed on the inner wall of the toothed belt 4017, the first spectrum recognition board extension plate 402 is connected to the first rack 4010, the second spectrum recognition board extension plate 403 is connected to the second rack 4011, the first connecting block 4015 and the second connecting block 4016 are both installed with a cleaning assembly 5 at the bottom, and the third gear 408 forms a transmission mechanism with the first gear 406 through the toothed belt 4017; when the first spectrum recognition board extension plate 402 is pushed or pulled by the handle on one side of the first spectrum recognition board extension plate 402, the first spectrum recognition board extension plate 402 moves and drives the first rack 4010 to move, and the first rack 4010 moves and drives the fourth gear 409 to rotate, and the fourth gear 409 rotates and drives the second rack 4011 to move, and at the same time drives the second spectrum recognition board extension plate 403 to move, and the first spectrum recognition board extension plate 402 and the second spectrum recognition board extension plate 403 can expand outward at the same time. Or when they shrink inwards and expand outwards at the same time, the second limit block 302 limits the third limit block 4012 to prevent the first music recognition board extension plate 402 from being pulled out and falling off from the mounting shell 301. When the first music recognition board extension plate 402 and the second music recognition board extension plate 403 move at the same time, the cleaning cotton on the cleaning plates 502 installed on both sides of the mounting shell 301 can clean the surfaces of the first music recognition board extension plate 402 and the second music recognition board extension plate 403. When the third gear 408 rotates, the toothed belt 4017 can drive the first gear 406 to rotate, thereby driving the first connecting rod 404 and the second gear 407 to rotate. When the second gear 407 rotates, it drives the third rack 4013 and the fourth rack 4014 to move. When the third rack 4013 and the fourth rack 4014 move, they drive the two cleaning components 5 to move, so as to clean the music recognition board body 401 and improve the convenience of using the music recognition board.

[0036] In this embodiment, Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the top of the mounting shell 301, the top of the inner wall, the bottom of the inner wall and the top of the inner wall of the U-shaped shell 303 are all provided with T-shaped rails, and the top and bottom of the first spectrum recognition board extension plate 402, the top and bottom of the second spectrum recognition board extension plate 403, the bottom of the third rack 4013 and the top of the fourth rack 4014 are all provided with T-shaped slide bars; when the first spectrum recognition board extension plate 402 and the second spectrum recognition board extension plate 403 move, the T-shaped slide bars at the top and bottom of the first spectrum recognition board extension plate 402 and the second spectrum recognition board extension plate 403 move in the mounting shell 301. The third rack 4013 and the fourth rack 4014 move in the T-shaped track at the top and bottom of the inner wall, which can improve the stability of the first music recognition board extension board 402 and the second music recognition board extension board 403 when moving. When the third rack 4013 and the fourth rack 4014 move, the T-shaped slides at the bottom of the third rack 4013 and the top of the fourth rack 4014 move in the T-shaped track at the top of the mounting shell 301 and the top of the inner wall of the U-shaped shell 303, which can improve the stability of the third rack 4013 and the fourth rack 4014 when moving, thereby improving the stability of the music recognition board when in use.

[0037] In this embodiment, Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, small magnetic patches are provided on the left side of the inner wall of the mounting shell 301 and on one side of the rear end of the first spectrum recognition board extension board 402; when the first spectrum recognition board extension board 402 is unfolded outward, the magnetic patch at the rear end of the first spectrum recognition board extension board 402 is adsorbed with the magnetic patch on the inner wall of the mounting shell 301, and the magnetic patch provides a certain suction force, which can improve the stability of the first spectrum recognition board extension board 402 when it is unfolded and used.

[0038] In this embodiment, Fig.11 As shown, the cleaning component 5 includes a mounting tube 501, the inner wall of which is plugged with a cleaning plate 502, and screw holes are provided at the top of the mounting tube 501 and the top of the cleaning plate 502, and the mounting tube 501 and the cleaning plate 502 are connected by butterfly screws; the butterfly screws are convenient for disassembly and installation, and when the cleaning plate 502 needs to be cleaned or replaced after being used for a long time, the butterfly screws can be removed to remove the cleaning plate 502 from the mounting tube 501, so as to facilitate the subsequent cleaning of the cleaning plate 502.

[0039] The use method and advantages of the utility model: When the music score recognition board is used, the working process is as follows:

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, first, when the height of the music recognition board needs to be adjusted, the rotating handle 2011 is rotated to drive the rotating rod 206 and the second bevel gear 207 to rotate through the worm 2010 and the worm wheel 208. When the second bevel gear 207 rotates, it drives the threaded rod 202 to rotate through the first bevel gear 203. When the threaded rod 202 rotates, it drives the movable tube 205 to move up and down, and the music recognition board assembly 4 is adjusted to a suitable height. When the music recognition board is expanded, the handle on one side of the first music recognition board expansion plate 402 is pulled to drive the first music recognition board expansion plate 402 to move. When the first music recognition board expansion plate 402 moves, the fourth gear 409 is driven to rotate through the first rack 4010. When the fourth gear 409 rotates, it drives the second music recognition board expansion plate 403 to move through the second rack 4011. The first music recognition board expansion plate 402 and the second music recognition board expansion plate 403 move simultaneously. Outward expansion, when the music recognition board is not needed, push the first music recognition board extension plate 402, the first music recognition board extension plate 402 drives the fourth gear 409 to rotate through the first rack 4010, the first music recognition board extension plate 402 and the second music recognition board extension plate 403 shrink inward at the same time, the cleaning cotton on the cleaning plate 502 of the cleaning assembly 5 installed on both sides of the mounting shell 301 cleans the surface of the first music recognition board extension plate 402 and the second music recognition board extension plate 403, and at the same time the third gear 408 drives the first gear 406, the first connecting rod 404 and the second gear 407 to rotate through the toothed belt 4017, when the second gear 407 rotates, it drives the third rack 4013 and the fourth rack 4014 to move, when the third rack 4013 and the fourth rack 4014 move, they drive the two cleaning assemblies 5 to move, and clean the music recognition board body 401.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A music score recognition board, comprising a moving component (1), characterized in that: A height adjustment component (2) is installed on the top of the moving component (1), a mounting component (3) is installed on the top of the height adjustment component (2), a spectrum recognition board component (4) is installed on the inner wall of the mounting component (3), and cleaning components (5) are installed on both sides of the mounting component (3) and at the front end of the spectrum recognition board component (4); The mounting assembly (3) comprises a mounting shell (301), a second limiting block (302) is mounted on the inner wall of the mounting shell (301), and a U-shaped shell (303) is mounted on the top of the mounting shell (301); The spectrum recognition board assembly (4) comprises a spectrum recognition board body (401) mounted on the inner wall of a mounting shell (301); a first spectrum recognition board extension plate (402) and a second spectrum recognition board extension plate (403) are mounted on the inner wall of the mounting shell (301) in a sliding manner from left to right; a first connecting rod (404) is rotatably mounted through the rear end of the U-shaped shell (303); a second connecting rod (405) is rotatably mounted through the rear end of the mounting shell (301); a first gear (406) is mounted on the outer wall of the first connecting rod (404); a second gear (407) is mounted on the front end of the first connecting rod (404); a third gear (408) is mounted on the outer wall of the second connecting rod (405); A fourth gear (409) is installed at the front end of the second connecting rod (405); a first rack (4010) and a second rack (4011) are meshedly installed on the outer wall of the third gear (408); a third limiting block (4012) is installed at one end of the first rack (4010); a third rack (4013) and a fourth rack (4014) are meshedly installed on the outer wall of the second gear (407); a first connecting block (4015) is installed at the front end of the fourth rack (4014) and close to the right side; a second connecting block (4016) is installed at the front end of the third rack (4013) and close to the left side; and a toothed belt (4017) is meshedly installed on the outer wall of the first gear (406).

2. A music score recognition board according to claim 1, characterized in that: The moving assembly (1) comprises a base plate (101), a support plate (102) is mounted on the outer wall of the base plate (101), a universal wheel (103) with a brake is mounted on the bottom of the support plate (102), and the support plate (102) and the universal wheel (103) with a brake are arranged as a group, and there are three groups in total, and the three groups of support plates (102) and universal wheels with brakes (103) are distributed in a ring shape with the vertical center line of the support plate (102) as the origin.

3. A music score recognition board according to claim 1, characterized in that: The height adjustment assembly (2) comprises a fixed tube (201) mounted on the top of the base plate (101); a threaded rod (202) is rotatably mounted through the bottom of the inner wall of the fixed tube (201); a first bevel gear (203) is mounted on the outer wall of the threaded rod (202); a first limit block (204) is mounted on the top of the threaded rod (202); a movable tube (205) is threadedly mounted on the outer wall of the threaded rod (202); a rotating rod (206) is rotatably mounted through the rear end of the fixed tube (201); and a first bevel gear (203) is mounted on the front end of the rotating rod (206). The movable tube (205) is slidably mounted on the inner wall of the fixed tube (201), the first bevel gear (203) is meshed with the second bevel gear (207), and the worm wheel (208) is meshed with the worm wheel (2010) at one end of the inner wall of the fixed tube (201).

4. A music score recognition board according to claim 1, characterized in that: A third gear (408) is meshedly mounted on the inner wall of the toothed belt (4017); the first spectrum recognition board extension plate (402) is connected to the first rack (4010); the second spectrum recognition board extension plate (403) is connected to the second rack (4011); cleaning components (5) are mounted on the bottoms of the first connecting block (4015) and the second connecting block (4016); and the third gear (408) forms a transmission mechanism with the first gear (406) via the toothed belt (4017).

5. A music score recognition board according to claim 1, characterized in that: The top of the mounting shell (301), the top of the inner wall, the bottom of the inner wall and the top of the inner wall of the U-shaped shell (303) are all provided with T-shaped rails, and the top and bottom of the first spectrum recognition board extension plate (402), the top and bottom of the second spectrum recognition board extension plate (403), the bottom of the third rack (4013) and the top of the fourth rack (4014) are all provided with T-shaped sliding strips.

6. A music score recognition board according to claim 1, characterized in that: Small magnetic patches are provided on the left side of the inner wall of the installation shell (301) and on one side of the rear end of the first spectrum recognition board extension board (402).

7. A music score recognition board according to claim 1, characterized in that: The cleaning assembly (5) comprises a mounting tube (501), a cleaning plate (502) being inserted into the inner wall of the mounting tube (501), screw holes being provided at the top of the mounting tube (501) and the top of the cleaning plate (502), and the mounting tube (501) and the cleaning plate (502) being connected via butterfly screws.

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