CN2165002Y

CN2165002Y - Paste oily surface teaching blackboard

Info

Publication number: CN2165002Y
Application number: CN 93214090
Authority: CN
Inventors: 周利文
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-26
Filing date: 1993-05-26
Publication date: 1994-05-18
Anticipated expiration: 2003-05-26

Abstract

The utility model relates to a pasty teaching blackboard with an oily surface, which is formed by that a thin layer of milk-white paint is sprayed on a base board, a layer of pasty oily surface which is mixed by vaseline, carbon powder, and vegetable oil is coated on the paint surface with the thickness of about 2 millimeter. The utility model has the advantages of fluent writing, clear handwriting, no dust pollution, and good effect, using a pen with soft rubber point.

Description

Paste oily surface teaching blackboard

The utility model belongs to the improvement of blackboard for education.Exactly, it is a kind of blackboard for education of pasta in the pasty state.

At present, the blackboard that is used to impart knowledge to students has traditional wooden blackboard and Glass blackboard, and they are all write with white or pastel, and its dust pollution is big, influences teachers and students' health; A kind of steel is also arranged " deceiving " plate, it is to spray white paint on steel plate, writes with colored oil pike, and its plate face is less, and printing ink is difficult to wipe to the greatest extent, and unsuitable lyceum uses; Also having a kind of patent No. is 87212100 " Blackboard with a layer of fluid ", and it is sealing one deck liquid between base plate and transparent plastic film, writes at the plastics face with smooth object, though can present clear writing, but plastic foil is exposed by tip and hard object easily, and liquid level runs off, and does not reach the effect of the phase of giving.

The purpose of this utility model is exactly at above-mentioned the deficiencies in the prior art and voluntarily design and the blackboard for education of a kind of pasta in the pasty state of making.

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

Referring to Fig. 1, the utility model is made of base plate 1, enamelled coating 2 and pasty state pasta 3 three parts. Wherein base plate can be plank, glass plate, plastic plate or metallic plate; Enamelled coating is generally white paint, if base plate is milky or yellow plastic plate then can saves enamelled coating that fruit is still good; The pasty state pasta is mixed by 55 percent medical ventolin, industrial carbons fine powder and non-three kinds of raw materials of vegetable oil that freeze of about refining of 37 percent of about 8 percent. The mixture of " three-in-one " is coated in equably (about 2 millimeters thick) form one deck pasty state pasta on the enamelled coating of base plate, surrounds with framework all around and reinforce, just can use.

Lettering pen of the present utility model is made nib with soft rubber, and penholder can be made with long 6 centimetres plastics, batten or bamboo bar; Wiping the word brush is advisable with long 30 centimetres of handle, the wide 15 centimetres pig palm fiber brush of brush.

Remarkable advantage of the present utility model is without chalk, has eliminated the pollution of dust, and easy to use, writes smoothly, and writing is clear, all can use to the ambient temperature range of 37 degree at negative ten degree.

Embodiment of the present utility model makes base plate with long 3 meters wide normal blackboards of 1 meter, scribbles one deck ivory paint in the above, again " three-in-one " mixture is coated in the pasty state pasta that is about 2 millimeters thick on the lacquer painting and forms.Lettering pen is exactly the pencil of normal tape rubber tip, and writing effect is good.

Claims

1, a kind of blackboard for education comprises a base plate, surrounds with framework all around and reinforces, and it is characterized in that being sprayed with one deck ivory paint on the base plate, is coated with the pasty state pasta that is mixed by vaseline, carbon powder and vegetable oil of about 2 millimeters thick of one deck on the lacquer painting again;

2,, it is characterized in that base plate is plank, glass plate, plastic plate or metallic plate according to the described blackboard for education of claim 1;

3,, it is characterized in that also being furnished with a kind of lettering pen of mainly making by soft rubber according to the described blackboard for education of claim 1.