CN2191773Y - Magnetic dustless blackboard - Google Patents

Abstract

The utility model discloses a teaching writing tool. It comprises a magnetic writing board, a bottom lining board, a protective frame and a magnetic pen. The magnetic writing board is characterized in that a back lining board of the magnetic writing board is fixed with a magnetic absorption board, the magnetic absorption board and the magnetic writing board are separated by a certain distance, an elastic layer is filled between the magnetic absorption board and the writing board, writing of the magnetic writing board is the same as that of the existing magnetic writing board, and mark removal can be realized only by pressing the writing board backwards by a palm or a plate. It is easy to write and erase, can erase words locally, and is suitable for teaching. It has no dust and pollution, and can protect teachers from dust, and has popularization and application value.

Description

Magnetic dustless blackboard

The utility model relates to a kind of teaching writing apparatus.

At present, the most of schools of China still use the normal blackboard teaching, and normal blackboard dust from flying when writing and remove writing, contaminated environment.Have a strong impact on teachers and students' physical and mental health, especially stayed the future trouble of occupational disease to the teacher.Though existing magnetic Writing and drawing board does not consume chalk when using, and has fundamentally solved the problem of dust pollution,, so still rest on the toy for children class so far because it can not alter certain delegation arbitrarily or some words are not suitable for teaching.

The purpose of this utility model provides a kind of dustless pollution-free and can the local magnet board of wiping word.

The purpose of this utility model is achieved in that it is provided with and the consistent suction magnetic sheet of clipboard plate face size shape in the back of existing magnetic writing board, inhale magnetic sheet and clipboard and keep at a certain distance away, and inhaling filling elastic layer between magnetic sheet and the clipboard so that make the magnetic in the magnetic writing board show that core is not subjected to the effect of not inhaled magnetic sheet magnetic force under the situation of pressing force backward at clipboard.During use, submitting a written statement to a higher authority at the magnetic sheet face with magnetic pen draw to show a writing, and is as good as with existing magnetic force Writing and drawing board.When needs are eliminated writing,, make the suction magnetic sheet of clipboard near the back as long as push clipboard backward with palm or plate.Meanwhile, the magnetic in the clipboard shows that core breaks away from clipboard plate face because of the magneticaction that is subjected to inhaling magnetic sheet, has promptly eliminated the writing on the clipboard.

The utility model does not need to use chalk to write, and has not only reduced the teaching spending, and has fundamentally solved the problem of dust pollution, thereby makes the teacher avoid the evil of dust.For the teacher has removed trouble and worry, simultaneously, inhale the method that the magnetic sheet reverse side is inhaled the magnetic erasion, make the erasion of magnet board and the wiping of normal blackboard try mode roughly the same owing to adopted, therefore solved the problem that existing magnetic force Writing and drawing board can't select to revise the things that has painted arbitrarily effectively, thereby can arbitrarily wipe any position that changes clipboard and not influence other position, use very conveniently, be applicable to teaching, simultaneously, it also has simple in structure, makes easily characteristics with low cost.Therefore, has application value.

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

Fig. 2 is a front view of the present utility model.

Describe concrete structure of the present utility model in detail below in conjunction with drawings and Examples.

Referring to Fig. 1,2, the utility model comprises magnetic writing board 1, bottom lining plate 3, protect frame 5, magnetic pen, the back bottom lining plate 3 that it is characterized in that magnetic writing board 1 is provided with suction magnetic sheet 2, the size shape of inhaling magnetic sheet 2 is consistent with the size shape of clipboard 1 plate face, inhaling magnetic sheet 2 keeps at a certain distance away with magnetic writing board 1, the size of this distance should show that core is not just inhaled the effect of magnetic sheet 2 magnetic force and determined by the magnetic in the magnetic writing board 1, and come support fixation by the fin framework around the bottom lining plate 3, also be provided with sponge bed course 4 inhaling between magnetic sheet 2 and the clipboard 1.Magnetic writing board 1, sponge bed course 4, suction magnetic sheet 2 and bottom lining plate 3 thereof are embedded in aluminium alloy all around protect formation plate integral body in the frame 5, be useful on the fixed installation hole 6 of suspension at the round angle of this plate, in addition, the panel of magnetic writing board 1 can select for use the good and stronger material of rigidity of magnetic permeability to make, so that write clear and durable wear, also can be made of the magnetic bisque that is bonded on the bottom lining plate 3 and inhale magnetic sheet 2, bottom lining plate 3 also can be made with timber.

Claims (2)

1, a kind of Magnetic dustless blackboard, it comprises magnetic writing board (1), bottom lining plate (3), protects frame (5), magnetic pen, it is characterized in that being provided with in the back of magnetic writing board (1) one with the consistent suction magnetic sheet (2) of clipboard (1) plate face size shape, inhale magnetic sheet (2) and keep at a certain distance away, and inhaling filling elastic layer (4) between magnetic sheet (2) and the clipboard (1) with clipboard (1).

2, Magnetic dustless blackboard according to claim 1 is characterized in that inhaling magnetic sheet (2) and is made of the magnetic bisque that is bonded on the bottom lining plate (3).