CN201970690U - Erasing-free and non-reflecting blackboard - Google Patents

Abstract

The utility model discloses an erasing-free and non-reflecting blackboard, which is characterized by comprising black writing cloth, two reels, two lining plates, felt cloth, a chalk dust box and a motor. The two ends of the black writing cloth are bonded together to form a cylinder, the cylinder is tightly sleeved between the two reels in the vertical direction, and one ends of the reels are connected with the motor; the back face of the black writing cloth is provided with the lining plates for respectively supporting a writing surface and a cleaning surface, the felt cloth is connected with the cleaning surface, and the lower end of the felt cloth is provided with a strip type chalk dust box. When the blackboard is used, the erasing-free and non-reflecting effects can be achieved, chalk dust can be prevented from flying around, and the writing on the blackboard can be seen clearly from different angles.

Description

A kind of not reflective blackboard of wiping of exempting from

Technical field

The utility model belongs to the educational outfit technical field, particularly a kind of not reflective blackboard of wiping of exempting from.

Background technology

Normal blackboard has reflective when certain angle is seen writing on the blackboard, and chalk dust is existed everywhere when erasing the board, to teacher with to be sitting in front-seat students' union influential.

Summary of the invention

The utility model purpose is to provide a kind of not reflective blackboard of exempting to wipe at the defective that prior art exists.

The utility model adopts following technical scheme for achieving the above object:

A kind of exempting from wiped not reflective blackboard, it is characterized in that: comprise black writing cloth, two spools, two blocks of liner plates, felt-cloth, chalk dust box and motor; Described black writing cloth two ends are bonded together, and form cylinder, tighten to be enclosed between described two spools up and down, and spool one end is connected with described motor; The described black writing cloth back side respectively is equipped with a liner plate, supports writing surface and scouring face respectively, and described felt-cloth engages with scouring face, and described felt-cloth lower end is equipped with strip chalk dust box.

Use blackboard of the present utility model to reach and exempt to wipe and opaque effect, avoided chalk dust to fly upward over the sky, make all angles can both see writing on the blackboard clearly.

Description of drawings

Fig. 1 is the utility model schematic diagram

1, black writing cloth 2, spool 3, liner plate 4, felt-cloth 5, chalk dust box 6, motor

The specific embodiment

As shown in Figure 1, a kind of exempting from wiped not reflective blackboard, comprises 2, two blocks of liner plates 3 of 1, two spool of black writing cloth, felt-cloth 4, chalk dust box 5 and motor 6; Described black writing cloth 1 two ends are bonded together, and form cylinder, tighten to be enclosed between described two spools 2 up and down, and spool 2 one ends are connected with described motor 6; Described black writing cloth 1 back side respectively is equipped with a liner plate 3, supports writing surface and scouring face respectively, and described felt-cloth 4 engages with scouring face, and described felt-cloth 4 lower ends are equipped with strip chalk dust box 5.

On black writing cloth writing surface, write during use,, therefore can both see writing on the blackboard clearly in all angles because black writing cloth surface is diffuse reflection.When writing on the blackboard has been expired need wipe the time, start motor, the driven by motor spool rotates, black writing cloth is followed spool simultaneously and is rotated, write the part black writing cloth and the felt-cloth relative motion friction that is positioned at scouring face of word, the writing of writing is wiped, when black writing cloth turns to writing surface once more, can be carried out writing on the blackboard again.The chalk dust box can be collected the chalk dust that falls when wiping writing, regularly cleaning.Carry out at the back of blackboard owing to wipe the process of writing, so just avoided chalk dust to fly upward everywhere.

Claims (1)

1. exempt to wipe not reflective blackboard for one kind, it is characterized in that: comprise black writing cloth (1), two spools (2), two blocks of liner plates (3), felt-cloth (4), chalk dust box (5) and motor (6); Described black writing cloth (1) two ends are bonded together, and form cylinder, tighten to be enclosed within describedly up and down between two spools (2), and spool (2) one ends are connected with described motor (6); Described black writing cloth (1) back side respectively is equipped with a liner plate (3), supports writing surface and scouring face respectively, and described felt-cloth (4) engages with scouring face, and described felt-cloth (4) lower end is equipped with strip chalk dust box (5).

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