Blackboard with automatic blackboard eraser

Abstract

The utility model discloses a blackboard with an automatic blackboard eraser, and relates to the technical field of teaching equipment, the blackboard comprises a shell and a main body, the upper end and the lower end of the main body are respectively provided with a sliding groove, the inner side of each sliding groove is movably connected with a sliding block, one side of each sliding block is fixedly connected with a cleaning box, and the other side of each sliding block is fixedly connected with an automatic blackboard eraser. The upper end and the lower end of the inner side of the cleaning box are rotationally connected with a driving roller and an auxiliary roller correspondingly, and a cleaning belt is movably connected between the driving roller and the auxiliary roller. According to the blackboard eraser, the sliding blocks are matched with the sliding grooves, so that installation of the cleaning box can be achieved, sliding of the cleaning box can be achieved through manual pushing and pulling, the auxiliary roller is matched with the driving roller, so that the cleaning belt can be driven to rotate, and blackboard writing on the surface of the main body can be erased; the cleaning belt can be cleaned through water on the inner side of the water tank, water attached to the surface of the cleaning belt can be scraped off through the scraping plate, and the situation that due to the fact that the cleaning belt contains too much water, an erased main body affects writing again is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, and more specifically to a blackboard with an automatic blackboard eraser. Background Art

[0002] A blackboard is not a black board. In the traditional sense, it is a hard surface that can be written on repeatedly. It is mostly used for teaching. It is mostly black, dark green, and white. Usually, after writing, you need to manually erase the unnecessary content, which is very inconvenient to use.

[0003] In the Chinese utility model patent application number: CN201721541184.8, there is disclosed a teaching blackboard for automatically erasing chalk writing, including a blackboard, wherein the upper and lower ends of the blackboard are respectively provided with guide rails, and the two ends of the guide rails are respectively fixedly connected to the blackboard through guide rail support seats, the guide rails are parallel to each other, and the guide rails are respectively sleeved with sliders, and the sliders are fixed and sleeved with an erasing shaft, and one end of the erasing shaft is connected with a motor, and the motor is fixed on any slider, and a flexible cylindrical erasing roller is fixedly sleeved on the erasing shaft, and the surface of the erasing roller is fitted with the blackboard, and a circuit control box is installed on one end of the blackboard, and an electric control system is installed in the circuit control box. The teaching blackboard for automatically erasing chalk writing has the disadvantage of not having the function of automatically cleaning the erasing roller during use, and it is easy to cause dust to adhere to the surface of the erasing roller after long-term use, and the effect of erasing will become worse and worse as the time of use increases, and the handwriting that is kept for a long time cannot be effectively erased when it is erased in a dry state, and the effect is not good when used.

[0004] Therefore, it is necessary to propose a blackboard with automatic blackboard eraser to solve the problems referred to above. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to solve the problem that the existing teaching blackboard for automatically erasing chalk writings does not have the function of automatically cleaning the erasing roller during use, and dust is easily attached to the surface of the erasing roller after long-term use. The erasing effect will become worse and worse as the use time increases, and the handwriting that has been retained for a long time cannot be effectively erased when erased in a dry state, resulting in poor effect during use. The utility model provides a blackboard with an automatic blackboard eraser.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0009] A blackboard with an automatic blackboard eraser comprises a shell and a main body, wherein sliding grooves are provided at both upper and lower ends of the main body, a slider is movably connected to the inner side of the sliding groove, a cleaning box is fixedly connected to one side of the slider, an active roller and an auxiliary roller are rotatably connected to the inner side of the cleaning box at the upper and lower ends respectively, a cleaning belt is movably connected between the active roller and the auxiliary roller, a cavity is provided on the inner side of the cleaning box, a scraper is fixedly connected to the inner side of the cavity, a drainage groove is provided on the bottom end of the cavity, and a water tank is movably connected to the bottom end of the cleaning box.

[0010] Furthermore, the cleaning belt is made of cotton material, and the drainage groove is adapted to the water tank.

[0011] Furthermore, there are multiple scrapers, which are symmetrically distributed, and the scrapers are tightly fitted with the cleaning belt, and the scrapers are made of plastic material.

[0012] Furthermore, an air suction duct is provided on the inner side of the cleaning box, and an air suction box is fixedly connected to a side of the cleaning box away from the main body, and one end of the air suction duct is fixedly connected to the air suction box.

[0013] Furthermore, an inclined filter plate is fixedly connected to the inner side of the vacuum box.

[0014] Furthermore, an exhaust fan is fixedly installed on the inner side of the exhaust box, and the exhaust fan is adapted to the filter plate.

[0015] Furthermore, a dust storage box is movably connected to the bottom end of the air extraction box.

[0016] Furthermore, a first fixing rod is symmetrically fixedly connected to the inner side of the shell.

[0017] Furthermore, a second fixing rod is symmetrically fixedly connected to the rear side of the main body.

[0018] Furthermore, the two first fixing rods and the two second fixing rods are movably connected via a movable frame.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The utility model can realize the installation of the cleaning box by matching the slider with the sliding groove, the sliding of the cleaning box can be realized by manual pushing and pulling, and the cleaning belt can be driven to rotate by matching the auxiliary roller with the active roller, so as to realize erasing the blackboard writing on the surface of the main body, and the cleaning belt can be cleaned by the water inside the water tank, and the water attached to the surface of the cleaning belt can be scraped off by the scraper to avoid excessive water in the cleaning belt, which affects the writing of the main body after erasure, and the water flows back to the water tank through the drainage groove, so that recycling is more economical.

[0022] 2. The utility model can extract the air on the side of the cleaning box close to the main body by matching the exhaust fan on the inner side of the exhaust box with the exhaust duct, so as to avoid dust when erasing the blackboard writing on the surface of the main body. The erased powder can be filtered out by the filter plate and fall into the dust storage box below, so as to avoid the dust being cleaned from splashing everywhere.

[0023] 3. In the utility model, the first fixing rod and the second fixing rod can be connected through the movable frame, and the first fixing rod and the second fixing rod can be fixedly connected to the main body and the shell respectively, so that the main body can be pulled out from the inside of the shell according to needs during use, and the extended length of the shell can be adjusted to make it more convenient for viewers to watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a first cross-sectional schematic diagram of the structure of the utility model;

[0026] Figure 3 It is a second cross-sectional schematic diagram of the structure of the utility model;

[0027] Figure 4 It is a cross-sectional schematic diagram of the cleaning box structure of the utility model;

[0028] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the structure of the middle A area;

[0029] Figure 6 For this utility model Figure 3 A magnified schematic diagram of the structure of region B in the middle.

[0030] Figure numerals: 1. shell; 2. main body; 3. sliding groove; 4. slider; 5. cleaning box; 6. auxiliary roller; 7. active roller; 8. cleaning belt; 9. cavity; 10. scraper; 11. drain groove; 12. water tank; 13. exhaust duct; 14. exhaust box; 15. filter plate; 16. exhaust fan; 17. dust storage box; 18. first fixed rod; 19. second fixed rod; 20. movable frame. DETAILED DESCRIPTION

[0031] 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 technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0032] See also Figure 1 , 2 5. A blackboard with an automatic blackboard eraser comprises a shell 1 and a main body 2. Sliding grooves 3 are provided at both upper and lower ends of the main body 2. A slider 4 is movably connected to the inner side of the sliding groove 3. A cleaning box 5 is fixedly connected to one side of the slider 4. An active roller 7 and an auxiliary roller 6 are rotatably connected to the inner side of the cleaning box 5 at the upper and lower ends respectively. A cleaning belt 8 is movably connected between the active roller 7 and the auxiliary roller 6. The cleaning belt 8 is made of cotton cloth material. A cavity 9 is provided on the inner side of the cleaning box 5. A scraper 10 is fixedly connected to the inner side of the cavity 9. There are multiple scrapers 10, which are symmetrically distributed. The scrapers 10 are tightly fitted with the cleaning belt 8. The scrapers 10 are made of plastic material. A drainage groove 11 is provided at the bottom end of the cavity 9. A water tank 12 is movably connected to the bottom end of the cleaning box 5. The drainage groove 11 is adapted to the water tank 12.

[0033] In this embodiment, the installation of the cleaning box 5 can be achieved by matching the slider 4 with the sliding groove 3, and the sliding of the cleaning box 5 can be achieved by manually pushing and pulling. The auxiliary roller 6 is matched with the active roller 7 to drive the cleaning belt 8 to rotate, so that the blackboard writing on the surface of the main body 2 can be erased, and the cleaning belt 8 can be cleaned by the water inside the water tank 12. The water attached to the surface of the cleaning belt 8 can be scraped off by the scraper 10 to avoid excessive water in the cleaning belt 8, which will affect the writing of the main body 2 after erasure, and the water will flow back to the water tank 12 through the drainage groove 11, so that recycling is more economical. Example 2

[0034] See also Figure 4 This embodiment is further optimized on the basis of embodiment 1. Specifically, an exhaust duct 13 is opened on the inner side of the cleaning box 5, and an exhaust box 14 is fixedly connected to the side of the cleaning box 5 away from the main body 2, and one end of the exhaust duct 13 is fixedly connected to the exhaust box 14.

[0035] Specifically, an inclined filter plate 15 is fixedly connected to the inner side of the exhaust box 14 .

[0036] Specifically, an exhaust fan 16 is fixedly installed on the inner side of the exhaust box 14 , and the exhaust fan 16 is matched with the filter plate 15 .

[0037] Specifically, the bottom end of the air extraction box 14 is movably connected to a dust storage box 17 .

[0038] In this embodiment, the exhaust fan 16 on the inner side of the exhaust box 14 is adapted to the exhaust duct 13 to extract the air on the side of the cleaning box 5 close to the main body 2, thereby avoiding the generation of dust when erasing the blackboard writing on the surface of the main body 2. The erased powder can be filtered out by the filter plate 15 and fall into the dust storage box 17 below, thereby avoiding the dust being cleaned from splashing everywhere. Example 3

[0039] See also Figure 3 and 6 This embodiment is optimized as follows based on Example 1 or Example 2. Specifically, a first fixing rod 18 is symmetrically fixedly connected to the inner side of the shell 1.

[0040] Specifically, the rear side of the main body 2 is symmetrically fixedly connected with a second fixing rod 19 .

[0041] Specifically, the two first fixing rods 18 and the two second fixing rods 19 are movably connected via the movable frame 20 .

[0042] In this embodiment, the first fixing rod 18 and the second fixing rod 19 can be connected by the movable frame 20, and the first fixing rod 18 and the second fixing rod 19 can be fixedly connected to the main body 2 and the shell 1 respectively, so that the main body 2 can be pulled out from the inside of the shell 1 as needed during use, and the extension length of the shell 1 can be adjusted to make it more convenient for the viewer to watch.

[0043] In summary, in the present invention, the first fixing rod 18 and the second fixing rod 19 can be connected through the movable frame 20, and the first fixing rod 18 and the second fixing rod 19 can be fixedly connected to the main body 2 and the shell 1 respectively. When in use, writing can be done on the surface of the main body 2. After writing, the main body 2 can be pulled out from the inside of the shell 1 as needed, so that the distance between it and the viewer is closer. By adjusting the extended length of the shell 1, it can be more convenient for the viewer to watch. The installation of the cleaning box 5 can be achieved by matching the slider 4 with the sliding groove 3. After watching, when it is no longer needed, the cleaning box 5 can be slid by manual pushing and pulling, and the cleaning box 5 can be moved to the place where it needs to be erased. The auxiliary roller 6 is matched with the active roller 7, so that the cleaning belt 8 can be driven to rotate. This can realize erasing the blackboard writing on the surface of the main body 2, and the cleaning belt 8 can be cleaned by the water inside the water tank 12. The scraper 10 can scrape off the water attached to the surface of the cleaning belt 8 to prevent the cleaning belt 8 from containing too much water, which will cause the surface of the main body 2 to be too wet after erasure, affecting writing again. The scraped water can be returned to the water tank 12 through the drainage groove 11, and the recycling is more economical. The exhaust fan 16 on the inside of the exhaust box 14 is adapted to the exhaust duct 13 to extract the air from the side of the cleaning box 5 close to the main body 2, so as to avoid dust when erasing the blackboard writing on the surface of the main body 2. The erased powder can be filtered out by the filter plate 15 and made to fall into the dust storage box 17 below, so as to avoid the dust being cleaned from splashing everywhere, and the effect is better when used.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blackboard with an automatic blackboard eraser, comprising a housing (1) and a main body (2), characterized in that: The upper and lower ends of the main body (2) are provided with sliding grooves (3), the inner side of the sliding groove (3) is movably connected to a slider (4), one side of the slider (4) is fixedly connected to a cleaning box (5), the upper and lower ends of the inner side of the cleaning box (5) are rotatably connected to an active roller (7) and an auxiliary roller (6), a cleaning belt (8) is movably connected between the active roller (7) and the auxiliary roller (6), a cavity (9) is provided on the inner side of the cleaning box (5), a scraper (10) is fixedly connected to the inner side of the cavity (9), a drainage groove (11) is provided on the bottom end of the cavity (9), and the bottom end of the cleaning box (5) is movably connected to a water tank (12).

2. A blackboard with an automatic blackboard eraser according to claim 1, characterized in that: The cleaning belt (8) is made of cotton cloth material, and the drainage groove (11) is compatible with the water tank (12).

3. A blackboard with an automatic blackboard eraser according to claim 1, characterized in that: There are a plurality of scrapers (10), which are symmetrically distributed. The scrapers (10) are tightly fitted to the cleaning belt (8), and the scrapers (10) are made of plastic material.

4. A blackboard with an automatic blackboard eraser according to claim 1, characterized in that: An air extraction duct (13) is provided on the inner side of the cleaning box (5), and an air extraction box (14) is fixedly connected to the side of the cleaning box (5) away from the main body (2), and one end of the air extraction duct (13) is fixedly connected to the air extraction box (14).

5. A blackboard with an automatic blackboard eraser according to claim 4, characterized in that: An inclined filter plate (15) is fixedly connected to the inner side of the air extraction box (14).

6. A blackboard with an automatic blackboard eraser according to claim 4, characterized in that: An exhaust fan (16) is fixedly mounted on the inner side of the exhaust box (14), and the exhaust fan (16) is compatible with the filter plate (15).

7. A blackboard with an automatic blackboard eraser according to claim 4, characterized in that: The bottom end of the air extraction box (14) is movably connected to a dust storage box (17).

8. A blackboard with an automatic blackboard eraser according to claim 1, characterized in that: A first fixing rod (18) is symmetrically fixedly connected to the inner side of the housing (1).

9. A blackboard with an automatic blackboard eraser according to claim 8, characterized in that: A second fixing rod (19) is symmetrically fixedly connected to the rear side of the main body (2).

10. A blackboard with an automatic blackboard eraser according to claim 9, characterized in that: The two first fixing rods (18) and the two second fixing rods (19) are movably connected via a movable frame (20).

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