CN203832103U - Multifunctional dust-free electric blackboard - Google Patents

Abstract

The utility model discloses a multifunctional dust-free electric blackboard. The multifunctional dust-free electric blackboard comprises a blackboard main body framework, a driving shaft, a driven shaft, a tensioning device, a motor, a flexible blackboard plane, a loudspeaker box, a cleaning brush, and a blackboard eraser having a dust absorbing device. The driven shaft and the driving shaft are respectively arranged in the left and right parts inside the main body framework. The place between the driving and driven shafts is externally sleeved with the flexible blackboard plane, and the tensioning degree of the flexible blackboard plane can be adjusted by the tensioning device. The driving shaft is connected with the motor through a belt transmission device and drives the flexible blackboard plane to rotate. The beneficial effects of the utility model are that the flexible blackboard plane can rotate in a circulating manner and during the rotating process, the blackboard eraser and the cleaning brush can be used for cleaning automatically; and by adopting the dust-free arrangement, the harm brought by dust can be prevented effectively. At the same time, a white board, the loudspeaker box, and a scanning device are arranged so that the functions of the blackboard are increased. Moreover, the utilization area is improved effectively.

Description

A multifunctional dust-free electric blackboard

technical field

The utility model relates to a blackboard, in particular to a multifunctional dust-free electric blackboard.

Background technique

Blackboards are one of the most commonly used tools for daily teaching and training. Most of the blackboards currently used are traditional blackboards, which have a limited surface area for writing and need to be manually wiped, which will produce a lot of chalk dust, serious dust pollution, and harmful to health. At the same time, the process of wiping and manually pushing and pulling multiple blackboards is time-consuming and laborious, which not only wastes classroom time, but also wastes a lot of physical strength of teachers. In addition, there is a method of using water to assist wiping, but it is easy to cause turbidity in the flushing water, which affects reuse. At the same time, the blackboard that has been wiped needs to be dried and cannot be used immediately after wiping, which affects popularization and promotion.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a multifunctional dust-free electric blackboard with reasonable structure and effective prevention of dust hazards.

The purpose of this utility model is achieved through the following technical solutions. This multifunctional dust-free electric blackboard includes a blackboard main frame, a driving shaft, a driven shaft, a tensioning device, a motor, a flexible blackboard, a sound system, a cleaning brush, and a blackboard eraser with a dust suction device; the left and right sides of the main frame are respectively A driven shaft and a driving shaft are arranged, and a flexible blackboard is placed outside between the driving and driven shafts, the tension degree of which can be adjusted by a tensioning device, and the driving shaft is connected with a motor through a belt drive to drive the flexible blackboard to rotate.

As a preference: a partition is arranged between the driving shaft and the driven shaft, and the partition is fixed at the bottom of the main frame.

As a preference: the lower end of the drive shaft is provided with a handwheel.

As a preference: the blackboard eraser has a trumpet-shaped long rectangular eraser body with small holes on the bottom, an eraser layer with uniform small holes is connected to the bottom of the eraser body, and the other side of the eraser body is a dust suction device.

As a preference: the cleaning brush is composed of a cleaning brush body and a hair brush.

As a preference: a radio receiving sound is installed on the top of the blackboard, and is controlled by a sound switch button at the bottom.

As a preference: a whiteboard is provided at the right end of the blackboard.

As a preference: a scanning device is installed on the inner side of the whiteboard close to the blackboard.

The beneficial effect of the utility model is that: the flexible blackboard surface can be cyclically rotated, and the blackboard eraser and cleaning brush are used for automatic cleaning during the rotation process, and the dust-free setting is adopted to effectively prevent the harm of dust. At the same time, it is equipped with a whiteboard, audio, and scanning device, which increases the function of the blackboard and effectively improves the use area. In addition, the multi-functional dust-free blackboard is easy to install, can realize semi-automatic operation, and can be manually operated even in the case of power failure, which is convenient to use.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model;

Fig. 2 is a schematic diagram of the appearance structure of the utility model;

Fig. 3 is the top view of Fig. 1;

Figure 4 is a structural schematic diagram of a blackboard eraser with a dust suction device

Fig. 5 is a schematic structural view of the cleaning brush;

Explanation of reference signs: 1. Main body frame, 2. Tensioning device, 3. Wall pendant, 4. Motor forward rotation button, 5. Motor reverse rotation button, 6. Sound on and off, 7. Scanning device, 8. Active Shaft bearing, 9. Drive shaft, 10. Handwheel, 11. Dust suction device, 12.13.17.18. Spur gear, 14.15. Straight bevel gear, 16. Motor, 19. Small pulley, 20. Belt, 21. Large pulley, 22. Blackboard eraser, 23. Flexible blackboard, 24. Cleaning brush, 25. Audio, 26. Driven shaft bearing, 27. Driven shaft, 28. Partition, 29. Whiteboard, 30. Eraser body, 31 . Eraser layer, 32. Filter, 33. Brush, 34. Cleaning brush body.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further. Although the utility model will be described in conjunction with preferred embodiments, it should be understood that it does not mean that the utility model is limited to the embodiments. On the contrary, the invention is to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.

As shown in Figures 1 to 5, the multifunctional dust-free blackboard of this embodiment includes a main body frame 1, the main body frame 1 can be installed and fixed on the wall through the wall hanger 3, and a driving shaft 9 is arranged on the right side of the blackboard main body frame 1. , which is installed on the right end of the main body frame 1 through two driving shaft bearings 8, and a driven shaft 27 is arranged on the left side in addition, and is installed on the left end of the main body frame 1 by using the driven shaft bearing 26. The upper end of the drive shaft 9 is equipped with a large pulley 21, the large pulley 21 is connected with the small pulley 19 through the belt 20, and the small pulley 19 is connected to the main shaft of the motor 16, so that the motor 16 drives the drive shaft 9 to rotate at a low speed through the belt transmission device. The lower end of the shaft 9 is provided with a hand wheel 10, which can ensure that it can be used as usual when there is no electricity or a power failure. The driving shaft 9 and the driven shaft 27 are sleeved with a flexible blackboard 23 whose tension can be adjusted by the tensioning device 2 arranged outside the driven shaft 27 . A partition 28 is arranged between the main and driven shafts, and the partition 28 is fixed on the bottom of the main body frame 1 to prevent the blackboard from sinking too much when writing. The outer side of the flexible blackboard 23 is a writing surface, and the inner surface can be in contact with the outer plane of the partition 28 to increase the hardness of the blackboard. When the blackboard is full of writing, the driving shaft 9 drives the flexible blackboard 23 to rotate, and at the same time drives the driven shaft 27 to release the blackboard in the new writing area, and the forward and reverse of the motor 16 passes through the motor forward and reverse buttons 4 and 5 at the lower end of the main frame. Take control.

When the part of the blackboard that has been written is moved to the back to contact with the blackboard eraser 22, the blackboard eraser 22 has a trumpet-shaped long rectangular eraser body 30 with small holes below, and an eraser layer 31 with uniform small holes is connected below the eraser body 30 , the back of the eraser layer 31 is provided with a filter 32, and is connected to the dust suction device 11. During use, the dust suction device 11 drives the spur gears 12, 13, 17, 18 and the straight bevel gears 14 and 15 to transmit power through the motor 16. , produce extremely strong suction and pressure, the air suction filter 32 that will contain chalk dust, chalk dust stays in filter 32, and the air after filtering is discharged from air outlet. The cleaning brush 24 is close to the driven shaft 27. The cleaning brush 24 is made up of a cleaning brush body 34 and a hair brush 33. Since the hair brush 33 is provided with three rows, during the movement of the blackboard, multiple rows of hair brushes 33 will clean the blackboard one by one. Clean again to ensure the cleaning effect.

The right end of blackboard is also provided with whiteboard 29, and it has been used for covering motor 16, dust collector 11 and places handwheel 10, is convenient to write notice bulletin etc. again, has expanded the use area of blackboard. In addition, a scanning device 7 is installed on the inner side of the whiteboard close to the blackboard. Through the rotation of the blackboard, the written content on the blackboard can be scanned before wiping and stored, which is convenient for learning after class. The blackboard upper left and right sides respectively are equipped with radio receiving sound 25, are convenient to utilize wireless microphone teaching, play notice and music etc., and control by the sound switch 6 of lower end, have increased the function of blackboard.

Claims (8)

1. A multifunctional dust-free electric blackboard is characterized in that: it comprises a blackboard main frame, a driving shaft, a driven shaft, a tensioning device, a motor, a flexible blackboard, a sound system, a cleaning brush and a blackboard eraser with a dust suction device; The left and right sides of the main frame are respectively arranged with a driven shaft and a driving shaft. A flexible blackboard is placed outside between the main and driven shafts. The tension degree can be adjusted by the tensioning device. turn. 2. The multifunctional dust-free electric blackboard according to claim 1, characterized in that: a partition is arranged between the driving shaft and the driven shaft, and the partition is fixed at the bottom of the main frame. 3. The multifunctional dust-free electric blackboard according to claim 1, characterized in that: the lower end of the drive shaft is provided with a hand wheel. 4. The multifunctional dust-free electric blackboard according to claim 1, characterized in that: said blackboard eraser has a trumpet-shaped long rectangular eraser body with small holes below, and is connected with a uniform small hole below the eraser body. The eraser layer, the other side of the eraser body is a dust suction device. 5. The multifunctional dust-free electric blackboard according to claim 1, wherein the cleaning brush is composed of a cleaning brush body and a hair brush. 6. The multifunctional dust-free electric blackboard according to claim 1, characterized in that: a radio receiving sound is installed on the top of the blackboard, and is controlled by a sound switch button at the bottom. 7. The multifunctional dust-free electric blackboard according to claim 1, wherein a whiteboard is arranged at the right end of the blackboard. 8. The multifunctional dust-free electric blackboard according to claim 7, wherein a scanning device is installed on the inner side of the whiteboard close to the blackboard.