CN2213079Y

CN2213079Y - Magnetic writing device

Info

Publication number: CN2213079Y
Application number: CN 94243503
Authority: CN
Inventors: 李兆瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-28
Filing date: 1994-10-28
Publication date: 1995-11-22
Anticipated expiration: 2004-10-28

Abstract

The utility model relates to a magnetic writing device, which overcomes the defects that the environment pollution is caused when the handwriting on the blackboard is erased, and the erasing is inconvenient after the handwriting of the white board is dried. The utility model is composed of a magnetic plate, a magnetic pen, a magnetic eraser. The utility model utilizes the principle that the magnetic materials are repellent when having homogeneity and are attractive when having isomerism. When using the magnetic pen to write on the magnetic plate, the magnetic force sucks the magnetic column of the magnetic plate out, and the magnetic columns sucked out form the handwriting written. When using the magnetic plate to erase the plate surface, the magnetic column is pushed back by the magnetic force, and the magnetic plate is erased cleanly.

Description

Magnetic writing device

The utility model belongs to a kind of teaching equipment of being made up of magnetic material.

Blackboard used in everyday or blank are write with chalk or coloured water-color paintbrush, and the word that writes with chalk can make dirty hand and coat-sleeve have a large amount of dust again when erasing the board, and contaminated environment writes on blank with coloured water-color paintbrush that writing is unclear sometimes, is difficult for cleaning after doing.

The purpose of this utility model provides a kind of magnetic writing person device, and it can make the writer write or wipe clean writing easily, uses clean hygiene, does not have any pollution.

The utility model comprises magnetic sheet, magnetic pen and magnetic sheet wiping, it is characterized in that;

A, magnetic sheet comprise the plate of the full blind hole of a piece of cloth, and a movably magnetic post is arranged in the blind hole, add a cover the layer of transparent transparent substance on the blind hole of plate, and the magnetic post can move freely in the hole;

B, magnetic pen are made up of nib, magnetic core, a tail, the pen cap, nib is made by magnet, nib is coated with the flexibility material, magnetic core is one section permanent-magnet material, can in the pen cap, move, in the tail permanent magnetism magnet is arranged, the pen cap is fixed together nib, magnetic core, a tail, and magnetic core can be changed to the distance of nib;

C, magnetic sheet are wiped and are made up of permanent-magnet material and shell.

The utility model is compared with existing blackboard, blank, clean hygiene, and the protection environment is easily wiped clean.A pen can not use for a long time and consume.

Fig. 1 is the schematic diagram of the utility model magnetic sheet;

Fig. 2 is the schematic diagram of the utility model magnetic pen;

Fig. 3 is the schematic diagram that the utility model magnetic sheet is wiped.

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

The utility model is wiped three by magnetic sheet, magnetic pen, magnetic sheet and is partly formed.

Fig. 1 is the structural representation of magnetic sheet, it is that a non magnetic plate (1) is made small blind hole by certain density, form a blind hole array, add a column permanent-magnet materials in each blind hole, i.e. magnetic post (2), magnetic post magnetic pole is axial, the length of magnetic post is shorter than blind hole depth, can be free to slide in the hole, the magnetic post pole orientation in the hole is all consistent, forms an array of being made up of the magnetic post like this.Cover a transparent substance (3) then onboard, as glass, after transparent substance and plate be fixed together, the magnetic post in the blind hole no longer dropped out, and magnetic sheet has just been made like this.

Fig. 2 is the structural representation of magnetic pen, and magnetic pen comprises nib (4), magnetic core (5), a tail (6), the pen cap (7) composition.Nib is made by magnet, covers with the soft material of one deck on the nib, strengthens comfortableness when writing, and guarantees not fray magnetic sheet.In the pen one section permanent-magnet materials, i.e. magnetic core are arranged.The magnetic pole of magnetic core is consistent with written pole orientation, and the distance of magnetic core and nib is adjustable, can change the magnetic field intensity at nib place like this.Tail has a permanent-magnet material, and pole orientation is opposite with the nib pole orientation, the pen cap with nib, magnetic core, a tail, be fixed together and the device of change nib and magnetic core distance.

Fig. 3 is the structural representation that magnetic sheet is wiped, and it is made up of a permanent-magnet material (8) and shell (9).

This magnetic writing device is to use like this, and vertical hang-up of magnetic sheet fixed, and wipes the Wiper plate face with magnetic sheet, because the magnetic pole of magnetic sheet wiping is identical with the magnetic post pole orientation in the magnetic sheet, so the blind hole inside magnet column all returns to the bottom of blind hole, the magnetic post be can't see in the outside, and magnetic sheet is no word state.Write on magnetic sheet with magnetic pen, the nib magnetic pole is opposite with magnetic extreme direction, and the local magnetic post of writing is sucked out, and the magnetic post that is sucked out has just been formed the word that will write.Wipe the Wiper plate face with magnetic sheet when wiping word, the magnetic post pole orientation interior owing to the magnetic pole and the magnetic sheet of magnetic sheet wiping is identical, and the magnetic post is return the bottom in hole, and writing disappears.The function class of a tail of magnetic pen mistake occurs as individual malapropism like blackboard eraser, and a tail that can reach magnetic pen carries out wiping among a small circle.

Magnetic sheet also can use under inverse state, and with the another side wiping magnetic sheet that magnetic sheet is wiped, magnetic sheet is wiped magnetic pole and plate inside magnet column opposite polarity directions, and the small magnetic rod in the magnetic sheet is sucked out entirely like this, and magnetic sheet is no word state.Write on magnetic sheet with the identical magnetic pen of magnetic post pole orientation with another nib magnetic pole, the local magnetic post of writing is return, and occurs the word of being write on the magnetic sheet.Wipe the Wiper plate face with magnetic sheet, the magnetic post is sucked out again, and writing disappears, and a tail can carry out wiping among a small circle equally.

Claims

1, a kind of magnetic writing device comprises magnetic sheet, magnetic pen and magnetic sheet wiping, it is characterized in that:

(a), magnetic sheet comprises the plate (1) of the full blind hole of a piece of cloth, and a movably magnetic post (2) is arranged in the blind hole, adds lid layer object (3) when saturating above the blind hole of plate (1), the magnetic post can move freely in the hole;

(b), magnetic pen is made up of nib (4), magnetic core (5), a tail (6), the pen cap (7), nib is made by magnet, nib is coated with gentle light property material, magnetic core is one section permanent-magnet materials, can in the pen cap, move, in the tail permanent magnetism magnet is arranged, the pen cap is fixed together nib, magnetic core, a tail, and magnetic core can be changed to the distance of nib;

(c), magnetic sheet is wiped and is made up of permanent-magnet materials (8) and shell (9).