CN202685672U

CN202685672U - Blackboard capable of being automatically erased

Info

Publication number: CN202685672U
Application number: CN 201220334781
Authority: CN
Inventors: 陈法安; 郑亚娣
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2012-07-11
Filing date: 2012-07-11
Publication date: 2013-01-23
Anticipated expiration: 2022-07-11

Abstract

The utility model discloses a blackboard capable of being automatically erased. The blackboard comprises a motor, a writing belt, a first roll shaft, a second roll shaft and at least one roll shaft with a brush, wherein the first roll shaft, the second roll shaft and at least one roll shaft with a brush are arranged in parallel, and the roll shaft with a brush is located between the first roll shaft and the second roll shaft; the writing belt is wound around the first roll shaft and the second roll shaft after bypassing the roll shaft with a brush; and the first roll shaft, the second roll shaft and the roll shaft with a brush are driven to rotate by the motor. The blackboard capable of being automatically erased is convenient to use and good in erasing effect; and with the adoption of the blackboard, the pollution of the dust to the environment can be reduced, the harm of the dust to the human body is greatly reduced and the erasing effect is increased when the blackboard is used.

Description

But a kind of Automatic erasing blackboard

Technical field

The utility model relates to a kind of teaching instrument, but is specifically related to a kind of Automatic erasing blackboard.

Background technology

Traditional blackboard for education with externally directly wiping of chalkboard eraser, can produce a large amount of dust in the wiping process by manually, swims in for a long time in the air, and indoor environment is caused severe contamination; And this type of manual wipping writing on the blackboard, speed is slower, and wiping effect is relatively poor, expends muscle power, and the classroom instruction time has been caused waste to a certain extent.

Summary of the invention

For defective or the deficiency of prior art, but the purpose of this utility model is to provide a kind of reasonable in design, easy to use, low in the pollution of the environment, harm is low, it is effective to wipe, the erasing time is short Automatic erasing blackboard.

For realizing above-mentioned technical assignment, the utility model is taked following technical solution:

But a kind of Automatic erasing blackboard, it is characterized in that, comprise motor, write band, the first roll shaft, the second roll shaft and at least one band brushroll axle, described the first roll shaft, the second roll shaft and at least one band brushroll axle be arranged in parallel, and the band brushroll axle is between the first roll shaft and the second roll shaft, the described band of writing is walked around the band brushroll axle and is wound on the first roll shaft and the second roll shaft, and described motor-driven the first roll shaft, the second roll shaft and band brushroll axle are rotated.

But described Automatic erasing blackboard comprises two band brushroll axle.

Be connected with driving wheel on the described motor, described the first roll shaft, the second roll shaft and driven pulley all is installed with the end of brushroll axle, described driving wheel rotates by the chain drive driven pulley, and then drives the first roll shaft, the second roll shaft and band brushroll axle and rotate.

But described Automatic erasing blackboard comprises frame, and described the first roll shaft, the second roll shaft and at least one band brushroll axle are installed in the frame.

Described frame bottom is provided with the dust collection groove.

The described band back of writing is equipped with gripper shoe.

But Automatic erasing blackboard of the present utility model is easy to use, and wiping effect is good, can reduce in use dust to the pollution of environment simultaneously, greatly reduces dust to the harm of human body.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.

The specific embodiment

With reference to figure 1, according to the technical solution of the utility model, but the Automatic erasing blackboard of this embodiment comprises frame 9, motor, write and be with 4, the first roll shaft 1, the second roll shaft 2 and two band brushroll axle 3, described the first roll shaft 1, the

second roll shaft

2 and 3 parallel shapes of two band brushroll axle are installed in the frame 9, and band brushroll axle 3 is between the first roll shaft 1 and the second roll shaft 2, described write be with 4 walk around the band brushroll axle 3 be wound on the first roll shaft 1 and the second roll shaft 2, namely write and be with 4 cuffs on two roll shafts, rotation by roll shaft realizes writing the upset with 4, band brushroll axle 3 is installed on to write and is with 4 rears, and is with 4 surfaces fully to contact with writing; Be connected with driving wheel 5 on the described motor, described the first roll shaft 1, the second roll shaft 2 and driven pulley 6 all is installed with the end of brushroll axle 3, described driving wheel 5 drives driven pulley 6 by chain 7 and rotates, and then drives the first roll shaft 1, the

second roll shaft

2 and 3 rotations of band brushroll axle; Frame 9 is rectangular box, and its front side is provided with and can appears the window that soft quality is write band, and its underpart is provided with dust collection groove 10; Whole blackboard system structure is arranged on the frame at window rear; Write and be with 4 rears that gripper shoe 8 is installed, to play the effect of writing of supporting.

Driven by motor driving wheel 5 rotates, driving wheel 5 drives chain 7 runnings when rotating, chain 7 drives driven pulley 6 and rotates, and driven pulley 6 drives to write by roll shaft is with 4 upsets, be with simultaneously brushroll axle 3 to be with 4 to do relative motion with writing, realize writing the automatic erasing with the letter written with chalk on 4; The dust that wiping is got off drains in the dust collection groove 10.

Claims

1. but Automatic erasing blackboard, it is characterized in that, comprise motor, write band (4), the first roll shaft (1), the second roll shaft (2) and at least one band brushroll axle (3), described the first roll shaft (1), the second roll shaft (2) and at least one band brushroll axle (3) be arranged in parallel, and band brushroll axle (3) is positioned between the first roll shaft (1) and the second roll shaft (2), described write band (4) walk around the band brushroll axle (3) be wound on the first roll shaft (1) and the second roll shaft (2) described motor-driven the first roll shaft (1), the second roll shaft (2) and band brushroll axle (3) are rotated.

2. but Automatic erasing blackboard as claimed in claim 1 is characterized in that, but described Automatic erasing blackboard comprises two band brushroll axle (3).

3. but Automatic erasing blackboard as claimed in claim 1, it is characterized in that, be connected with driving wheel (5) on the described motor, the end of described the first roll shaft (1), the second roll shaft (2) and band brushroll axle (3) all is equipped with driven pulley (6), described driving wheel (5) drives each driven pulley (6) by chain (7) and rotates, and then drives the first roll shaft (1), the second roll shaft (2) and band brushroll axle (3) rotation.

4. but Automatic erasing blackboard as claimed in claim 1 is characterized in that, but described Automatic erasing blackboard comprises frame (9), and described the first roll shaft (1), the second roll shaft (2) and at least one band brushroll axle (3) are installed in the frame (9).

5. but Automatic erasing blackboard as claimed in claim 4 is characterized in that, described frame (9) bottom is provided with dust collection groove (10).

6. but Automatic erasing blackboard as claimed in claim 1 is characterized in that, described band (4) back of writing is equipped with gripper shoe (8).