CN201300620Y - Rolling blackboard - Google Patents

Abstract

The utility model discloses a rolling blackboard. The rolling blackboard comprises a tough blackboard, a hard backing plate, a motor, a frame and two rotating shafts; the tough blackboard is in a closed ring shape; The rotatable rotating shaft, the motor is connected with a rotating shaft, and the two rotating shafts are connected by a conveyor belt through a tough blackboard; a hard backing plate is fixed between the left and right frames of the frame. The rotation of the utility model is convenient for users of different heights; and there will not be a lot of dust flying on the blackboard.

Description

scroll blackboard

technical field

The utility model relates to a blackboard, in particular to a rolling blackboard.

Background technique

Most of the teaching blackboards used now are single boards, and there are also a small number of double boards or four boards. But they are either very laborious to wipe, cause a lot of dust, delay teaching time, or are just inconvenient for users who are not of the right height.

Therefore, it is urgent to develop and use conveniently in this area, be suitable for users of different heights, reduce the blackboard that chalk dust flies every now and then.

Utility model content

In order to solve the disadvantages of ordinary blackboards such as laborious wiping, much dust, delayed teaching time and inconvenience for different users, the utility model provides a rolling blackboard, which can be driven by a motor to rotate to meet the needs of students of different heights. It is necessary to gently wipe off the redundant writing during the rotation process, so as to solve the disadvantage that ordinary blackboards are laborious and dusty to wipe and delay teaching time.

The utility model provides a rolling blackboard, which comprises a tough blackboard, a hard backing plate, a motor, a frame and two rotating shafts. The ductile blackboard is in a closed ring shape; two rotatable shafts are respectively fixed between the left and right frames of the frame, the motor is connected to one shaft, and the two shafts are connected by a conveyor belt through the ductile blackboard; hard backing plates are fixed on the left and right frames of the frame between.

The above-mentioned motor is connected with the upper rotating shaft.

The above-mentioned hard backing plate is in close contact with the tough blackboard.

A fixed wiping board is fixed between the above-mentioned tough blackboard and any frame of the upper and lower frames of the frame. Preferably, a fixed wiper board is fixed between the tough blackboard and the upper frame of the frame.

A rotating wiping board is also arranged between the tough blackboard and the frame bottom plate, and the rotating wiping board is driven by another motor.

A powder cleaning tank is provided at the lower end of the frame.

A rotatable rotating shaft is horizontally fixed in the upper and lower horizontal frames of the blackboard frame, one of which is driven by a motor; the two rotating shafts are connected in the form of a conveyor belt through a tough blackboard; the hard backing plate is set in the hollow of the tough blackboard part, and fixed between the left and right side frames of the frame, it can act as a backing board to make writing smoother; there are enough replaceable fixed wipers installed inside the upper and lower horizontal frames to wipe off the passing handwriting; In the space opposite to the tough blackboard, the inner bottom of the back of the blackboard is equipped with staggered rotating wiping boards and can be driven by a motor. When the wiping effect of the fixed wiping boards is not good, it can play a role in strengthening the effect. The powder trough is convenient for cleaning accumulated dust.

When the motor drives the rotating shaft to rotate, the tough blackboard also rotates around the rotating shaft and the hard backing plate. Through the rotation, the written writing can be raised or lowered to meet the needs of users of different heights; at the same time, the unused parts can be wiped by the wiping board. clean. The blackboard of the utility model is time-saving and labor-saving, and there will not be a lot of flying dust; the effect of wiping the board can also be enhanced by rotating the wiping board.

Description of drawings

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

Figure 2 is a schematic diagram of the overall frame of the blackboard and the wiper board

Fig. 3 is a schematic diagram of a longitudinal section of the utility model

1. Shaft; 2. Hard backing board; 3. Tough blackboard; 4. Frame; 5. Fixed wiping board;

6. Rotate the wiping board; 7. The bottom plate of the frame; 8. The powder cleaning tank.

Detailed ways

Referring to Fig. 2 and Fig. 3, there are installation holes (not shown in the figure) at the corresponding positions of the left and right frames of the frame 4, two rotatable shafts are socketed in the installation holes, the motor is connected with the upper shaft, and the two shafts pass through the tough blackboard Linked in the manner of a conveyor belt; a hard backing plate 2 is fixed between the left and right frames of the frame 4 . Tough contact between the tough blackboard 3 and the hard backing plate 2 is relatively smooth so as to be better driven. A fixed wiper 5 is fixed between the toughness blackboard 3 and the upper and lower frames of the frame 4, and the fixed wiper is replaceable. A rotating wiping board 6 is arranged between the toughness blackboard and the frame bottom plate 7, and the rotating wiping board is driven by another motor, and the rotating wiping boards are arranged in a staggered manner, and are in close contact with the toughness blackboard 3 so that the wiping board is clean. The lower end of the frame 4 is provided with a powder cleaning tank 8 so as to clean up the dust.

The rotating shaft can also be rotatably fixed on the frame 4 by the fixed axle sleeves on the left and right frames of the frame 4 .

To sum up, those skilled in the art can make various insubstantial changes according to the description of the utility model, which are all a modification of the utility model, and should fall within the protection scope of the utility model.

Claims (7)

1. a rolling blackboard is characterized in that, comprises toughness blackboard (3), hard backing plate (2), electric motor, frame (4) and two rotating shafts (1); Toughness blackboard (3) is closed loop ; Two rotatable rotating shafts are respectively fixed between the left and right frames of the frame (4), the motor is connected with a rotating shaft (1), and the two rotating shafts are connected by a conveyor belt through a tough blackboard; the hard backing plate (2) is fixed on the frame (4) between the left and right boxes. 2. The rolling blackboard according to claim 1, wherein the motor is connected to the upper rotating shaft. 3. The rolling blackboard according to claim 1, characterized in that: the hard backing board (2) is in close contact with the tough blackboard (3). 4. The rolling blackboard according to claim 1, characterized in that, a fixed wiper board (5) is fixed between the tough blackboard (3) and any one of the upper and lower frames of the frame (4). 5. The rolling blackboard according to claim 1, characterized in that, a fixed wiper board (5) is fixed between the tough blackboard (3) and the upper frame of the frame (4). 6. The rolling blackboard according to claim 5, characterized in that, a rotating wiping board (6) is arranged between the tough blackboard (3) and the frame bottom plate (7), and the rotating wiping board (6) passes through another Driven by an electric motor. 7. The rolling blackboard according to any one of claims 1-6, characterized in that a powder cleaning tank (8) is provided at the lower end of the frame.

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