Quick cleaning device for blackboard eraser

Abstract

The utility model relates to the field of teaching aids, in particular to a quick cleaning device for a blackboard eraser, which comprises a cleaning box body and a cleaning mechanism. When the blackboard eraser is used, the erasing part of the blackboard eraser is downwards arranged in the cavity, and the two ends of the erasing part are respectively arranged on the two erecting plates, so that the blackboard eraser is stably arranged in the cavity. And then the cover plate covers the upper surface of the cleaning box body, the cavity is closed, the lower pressing plate enters the cavity at the moment, and the blackboard eraser is pressed on the erecting plate. And then the cleaning roller is rotated, so that the rolling shaft is alternately in contact with the erasing part of the blackboard eraser, in the process, the blackboard eraser is jacked upwards by the rolling shaft, the elastic piece is compressed, and the cleaning teeth on the rolling shaft can roll and beat in a manner of clinging to the erasing part of the blackboard eraser by utilizing the elastic restoring force of the elastic piece, so that chalk dust on the surface of the erasing part is quickly cleaned. Meanwhile, due to the arrangement of the cover plate, a closed space is formed in the cavity of the cleaning box body, and in the process of cleaning the chalk dust, the chalk dust does not drift into a classroom everywhere to cause secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids, and in particular to a blackboard eraser quick cleaning device. Background Technology

[0002] Blackboard erasers are an indispensable tool in classroom teaching, used to wipe chalk marks off the blackboard. However, traditional methods of cleaning blackboard erasers, such as tapping or blowing, are ineffective and can easily cause secondary pollution. Utility Model Content

[0003] In view of the shortcomings mentioned above in the background technology, this utility model provides a blackboard eraser quick cleaning device.

[0004] The present invention adopts the following technical solution:

[0005] A blackboard eraser quick cleaning device, the device comprising:

[0006] The cleaning box has an inwardly recessed cavity on its upper surface. Each end of the cavity has a mounting plate on its inner wall. When the blackboard eraser is placed into the cavity, both ends of the blackboard eraser are placed on the two mounting plates, with the erasing part of the blackboard eraser facing downward.

[0007] A cover plate is hinged to the rear side of the cleaning box body. The cover plate is used to open and close the cavity. The side surface of the cover plate near the cleaning box body is connected to a pressure plate by several elastic elements. When the cover plate covers the upper surface of the cleaning box body and closes the cavity, the pressure plate enters the cavity and presses the blackboard eraser onto the mounting plate.

[0008] A cleaning mechanism includes cleaning rollers, a plurality of which are disposed within the cavity and rotate synchronously. Each cleaning roller includes a turntable, connecting rods, rollers, and cleaning teeth. Two turntables are provided, arranged in parallel, and a plurality of connecting rods arranged in a circular array are provided between the two turntables. The two ends of each connecting rod are respectively connected to the sides of the two turntables, and a roller is sleeved on the outer side of each connecting rod. The rollers rotate outside the connecting rods, and a plurality of cleaning teeth are arranged on the outer circumference of the rollers. The turntables rotate on the inner wall of the cavity, and the two turntables are respectively disposed below the two mounting plates, with the rollers located between the two mounting plates. When the cleaning rollers rotate, the rollers alternately contact the erasing part of the blackboard eraser, and the rollers lift the blackboard eraser upward, compressing the elastic element. The cleaning teeth on the rollers are used to clean the chalk dust from the surface of the erasing part of the blackboard eraser.

[0009] As a further improvement, the elastic element is a spring.

[0010] As a further improvement, the cover plate has a fixing strip on the surface near the front side, and a second fixing hole is passed through the side of the fixing strip. The front side of the cleaning box has a first fixing hole. When the cover plate covers the upper surface of the cleaning box, the fixing strip is placed into the cavity, and the first fixing hole is aligned with the second fixing hole. The fixing pin is inserted into the first fixing hole and the second fixing hole in sequence.

[0011] As a further improvement, the device also includes a drive mechanism for driving the plurality of cleaning rollers to rotate synchronously. The drive mechanism includes pulleys, belts, and handles. Each of the rotating shafts of the cleaning rollers is fitted with a pulley, and the pulleys are connected to each other by belts. A handle is provided on the end face of the rotating shaft of one of the rotating disks. The handle passes through the cleaning box and is used to rotate the rotating disk.

[0012] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: In use, the erasing part of the blackboard eraser is placed downwards into the cavity, with both ends of the erasing part placed on the two mounting plates, thus securing the blackboard eraser in the cavity. Then, the cover plate is placed over the upper surface of the cleaning box to close the cavity. At this time, the pressure plate enters the cavity, pressing the blackboard eraser onto the mounting plates. Then, the cleaning roller is rotated, causing the roller to alternately contact the erasing part of the blackboard eraser. During this process, the roller will push the blackboard eraser upwards, compressing the elastic element. Utilizing the elastic restoring force of the elastic element, the cleaning teeth on the roller can roll and tap against the erasing part of the blackboard eraser, quickly cleaning away the chalk dust from the surface of the erasing part. Simultaneously, the cover plate creates a sealed space within the cavity of the cleaning box, preventing chalk dust from scattering throughout the classroom and causing secondary pollution during the chalk dust removal process. Attached Figure Description

[0013] Figure 1 This is an exploded structural diagram of the present invention.

[0014] Figure 2 A three-dimensional structural diagram of the cleaning mechanism and the drive mechanism.

[0015] Figure 3 A schematic diagram of the three-dimensional structure of the cleaning roller.

[0016] Figure 4 This is a 3D structural diagram of the blackboard eraser after it has been placed inside the cleaning box.

[0017] Figure 5 This is a three-dimensional structural diagram of the box after the cover plate is placed over the upper surface of the cleaning box. Detailed Implementation

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] As attached Figure 1 As shown, a blackboard eraser quick cleaning device includes a cleaning box 1, a cover plate 2, a cleaning mechanism 3, and a drive mechanism 4.

[0020] As attached Figure 1 , Figure 4 and Figure 5 As shown, the upper surface of the cleaning box 1 has an inwardly recessed cavity 11, and a mounting plate 12 is provided on the inner wall of each end of the cavity 11. Additionally, a cover plate 2 is hinged to the rear side of the cleaning box 1 via a hinge. This cover plate 2 is used to open and close the cavity 11, and a pressure plate 22 is connected to the side of the cover plate 2 closest to the cleaning box 1 via several elastic members 21. In use, the erasing part 51 of the blackboard eraser 5 is placed downwards into the cavity 11, with both ends of the erasing part 51 resting on the two mounting plates 12, thus securing the blackboard eraser 5 within the cavity 11. Then, the cover plate 2 is placed over the upper surface of the cleaning box 1, closing the cavity 11. At this time, the pressure plate 22 enters the cavity 11, pressing the blackboard eraser 5 onto the mounting plate 12. The elastic element 21 is a spring, which has advantages such as good elasticity, high durability, and high load-bearing capacity. The elastic element 21 allows the blackboard eraser 5 to move within a certain range between the mounting plate 12 and the lower pressure plate 22, providing conditions for cleaning chalk dust from the erasing section 51 of the blackboard eraser 5.

[0021] As attached Figures 1 to 3 As shown, a cleaning mechanism 3 for cleaning chalk dust is provided in the cavity 11. The cleaning mechanism 3 includes a cleaning roller 31, which includes a turntable 311, a connecting rod 312, a roller 313, and cleaning teeth 314. The two turntables 311 are arranged in parallel, and a number of connecting rods 312 are arranged in a circular array between the two turntables 311. The two ends of the connecting rods 312 are respectively connected to the sides of the two turntables 311, and a roller 313 is sleeved on the outer side of each connecting rod 312. The rollers 313 are rotated on the outer side of the connecting rods 312 through bearings, and a number of cleaning teeth 314 are arranged on the outer circumference of the rollers 313. The turntable 311 rotates on the inner wall of the cavity 11 via bearings. Two turntables 311 are respectively positioned below the two mounting plates 12, while the roller 313 is located between the two mounting plates 12. This allows the roller 313 to alternately contact the erasing part 51 of the blackboard eraser 5 as the cleaning roller 31 rotates. The roller 313 pushes the blackboard eraser 5 upwards, compressing the elastic member 21. Utilizing the elastic restoring force of the elastic member 21, the cleaning teeth 314 on the roller 313 can roll and tap against the erasing part 51 of the blackboard eraser 5, cleaning away chalk dust from its surface. Simultaneously, the blackboard eraser 5 can also avoid direct contact with the cleaning teeth 314 by compressing the elastic member 21 upwards, reducing the risk of damage to the blackboard eraser 5.

[0022] Preferably, as shown in the appendix Figure 1 and Figure 2 As shown, there are two cleaning rollers 31, which rotate synchronously within the cavity 11. Specifically, a drive mechanism 4 drives the two cleaning rollers 31 to rotate synchronously. This drive mechanism 4 includes pulleys 41, a belt 42, and a handle 43. Each rotating shaft 315 of the turntable 311 on the cleaning roller 31 is fitted with a pulley 41, and the pulleys 41 are connected by a belt 42. A handle 43 is provided on the end face of the rotating shaft 315 of one of the turntables 311, and this handle 43 passes through the cleaning box 1. In use, rotating the handle 43 drives the turntable 311 to rotate, and then the pulleys 41 and belt 42 cause the two cleaning rollers 31 to rotate synchronously, cleaning the chalk dust from the surface of the erasing section 51 on the blackboard eraser 5.

[0023] It is worth mentioning, as shown in the attached document. Figure 1 and Figure 5 As shown, the surface of the cover plate 2 near the front is provided with a fixing strip 23, and a second fixing hole 24 passes through the side of the fixing strip 23. A first fixing hole 13 passes through the front side of the cleaning box 1. When the cover plate 2 covers the upper surface of the cleaning box 1 and closes the cavity 11, the fixing strip 23 will be placed into the cavity 11. At this time, the first fixing hole 13 is aligned with the second fixing hole 24. Then, the fixing pin 14 is inserted into the first fixing hole 13 and the second fixing hole 24 in sequence, thereby fixing the cover plate 2 to the upper surface of the cleaning box 1. The setting of the cover plate 2 makes the cavity 11 of the cleaning box 1 form a sealed space, so that chalk dust will not be scattered everywhere in the classroom during the chalk dust cleaning process, causing secondary pollution. At the same time, the cover plate 2 applies pressure to the blackboard eraser 5, ensuring that hands will not get any chalk dust on them.

[0024] In summary, when using this invention, the erasing part 51 of the blackboard eraser 5 is placed downwards into the cavity 11, with both ends of the erasing part 51 resting on the two mounting plates 12, thus securing the blackboard eraser 5 within the cavity 11. Then, the cover plate 2 is placed over the upper surface of the cleaning box 1, closing the cavity 11. At this point, the pressure plate 22 enters the cavity 11, pressing the blackboard eraser 5 onto the mounting plates 12. Then, the cleaning roller 31 is rotated, causing the roller 313 to alternately contact the erasing part 51 of the blackboard eraser 5. During this process, the roller 313 pushes the blackboard eraser 5 upwards, compressing the elastic element 21. Utilizing the elastic restoring force of the elastic element 21, the cleaning teeth 314 on the roller 313 can roll and tap against the erasing part 51 of the blackboard eraser 5, quickly removing chalk dust from the surface of the erasing part 51. Meanwhile, the cover plate 2 makes the cavity 11 of the cleaning box 1 a sealed space, so that the chalk dust will not be scattered into the classroom and cause secondary pollution during the cleaning process.

[0025] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A rapid blackboard eraser cleaning device, characterized in that, The device includes: The cleaning box has an inwardly recessed cavity on its upper surface. Each end of the cavity has a mounting plate on its inner wall. When the blackboard eraser is placed into the cavity, both ends of the blackboard eraser are placed on the two mounting plates, with the erasing part of the blackboard eraser facing downward. A cover plate is hinged to the rear side of the cleaning box body. The cover plate is used to open and close the cavity. The side surface of the cover plate near the cleaning box body is connected to a pressure plate by several elastic elements. When the cover plate covers the upper surface of the cleaning box body and closes the cavity, the pressure plate enters the cavity and presses the blackboard eraser onto the mounting plate. A cleaning mechanism includes cleaning rollers, a plurality of which are disposed within the cavity and rotate synchronously. Each cleaning roller includes a turntable, connecting rods, rollers, and cleaning teeth. Two turntables are provided, arranged in parallel, and a plurality of connecting rods arranged in a circular array are provided between the two turntables. The two ends of each connecting rod are respectively connected to the sides of the two turntables, and a roller is sleeved on the outer side of each connecting rod. The rollers rotate outside the connecting rods, and a plurality of cleaning teeth are arranged on the outer circumference of the rollers. The turntables rotate on the inner wall of the cavity, and the two turntables are respectively disposed below the two mounting plates, with the rollers located between the two mounting plates. When the cleaning rollers rotate, the rollers alternately contact the erasing part of the blackboard eraser, and the rollers lift the blackboard eraser upward, compressing the elastic element. The cleaning teeth on the rollers are used to clean the chalk dust from the surface of the erasing part of the blackboard eraser.

2. The blackboard eraser quick cleaning device as described in claim 1, characterized in that: The elastic element is a spring.

3. The blackboard eraser quick cleaning device as described in claim 1, characterized in that: The cover plate has a fixing strip on its front side surface, and a second fixing hole is passed through the side of the fixing strip. The front side of the cleaning box has a first fixing hole. When the cover plate covers the upper surface of the cleaning box, the fixing strip is placed into the cavity, and the first fixing hole is aligned with the second fixing hole. The fixing pin is inserted into the first fixing hole and the second fixing hole in sequence.

4. The blackboard eraser quick cleaning device as described in claim 1, characterized in that: The device also includes a drive mechanism for driving the plurality of cleaning rollers to rotate synchronously. The drive mechanism includes pulleys, belts and handles. Each of the rotating shafts of the cleaning rollers is fitted with a pulley, and the pulleys are connected to each other by a belt. A handle is provided on the end face of the rotating shaft of one of the rotating disks. The handle passes through the cleaning box and is used to rotate the rotating disk.

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