CN205395549U

CN205395549U - Blackboard

Info

Publication number: CN205395549U
Application number: CN201620123020.2U
Authority: CN
Inventors: 兰岚
Original assignee: Harbin Institute of Physical Education
Current assignee: Harbin Institute of Physical Education
Priority date: 2016-02-06
Filing date: 2016-02-06
Publication date: 2016-07-27
Anticipated expiration: 2026-02-06

Abstract

The utility model relates to a blackboard, the rectangle surperficial including backplate and blackboard, that the backplate is made for silica gel, blackboard surface are handled through the hacking in the coating of backplate upper surface by the spraying and are formed. The backplate is silica -gel plate solid or intercalary band honeycomb plate, and the blackboard surface is fit for the chalk writes on it, and easily erases. The thin slice thickness that constitutes the honeycomb among the honeycomb plate is 2 millimeters. Through adopting silica gel as the backplate, utilize the elasticity characteristics of silica gel, form pressure on the blackboard surface when writing hard, make in the nib is absorbed in silica gel sunken, by the packing of the colour of chalk in this moment is sunken, can realize tie towards the effect of the print hand strokes of a chinese character after starting writing well, write labour saving and time saving, the effect is obvious.

Description

A kind of blackboard

Technical field

This utility model relates to a kind of teaching instrument, concretely relates to a kind of blackboard.

Background technology

In common English teaching; teacher writes on blackboard with chalk; the shape that the font writing out is relatively usually hand-written; for English; block letter font appears to better appearance, and during reading, eye also can be pleasant, and the problem that stroke puts down punching would generally be taken into account in the font of block letter; if to write out block letter word on the blackboard of existing teaching, teacher is write will be more tired.

Summary of the invention

In order to solve the defect existed in above-mentioned prior art, this utility model provides one and writes simply, and laborsaving convenience writes good-looking blackboard.

The technical solution of the utility model: a kind of blackboard, including backboard and blackboard surface, described backboard is the rectangle that silica gel is made, and described blackboard surface is formed through hacking process by the coating being sprayed on backboard upper surface.

It is preferred that, described backboard is solid silica gel plate.

It is preferred that, described backboard is the silica gel plate of Intermediate Gray honeycomb interlayer.

It is preferred that, described blackboard surface is suitable for chalk and writes herein above, and easily wipes.

It is preferred that, the sheet thickness constituting honeycomb in described honeycomb interlayer is 2 millimeters.

This utility model has the beneficial effect that by adopting silica gel as backboard, utilize the resilient characteristic of silica gel, form pressure on blackboard surface when writing firmly, nib is made to be absorbed in the depression of silica gel, now by the color filling of chalk nib in depression, can realizing the flat of block letter stroke after starting writing well and rush effect, it is time saving and energy saving to write, and effect is obvious.

Accompanying drawing explanation

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

Fig. 2 is generalized section of the present utility model；

Fig. 3 is the honeycomb interlayer schematic diagram in embodiment 2；

Fig. 4 is use state diagram of the present utility model；

Wherein: blackboard surface 1, silica gel backboard 2, chalk 3, honeycomb interlayer 4.

Detailed description of the invention

Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail, so that advantage of the present utility model and feature are easier to be readily appreciated by one skilled in the art, thus this utility model being made apparent clear and definite defining.

As it is shown in figure 1, a kind of blackboard, including backboard and blackboard surface 1, backboard is the rectangle that silica gel is made, and blackboard surface is the coating being sprayed on backboard upper surface, and coating can be black or green, and processes through hacking.Blackboard surface 1 is suitable for chalk 3 and writes herein above, can easily wipe.As shown in Figure 4, because silica gel backboard 2 has certain elasticity, when firmly writing, form pressure on blackboard surface 1, make chalk 3 point be absorbed in the depression of silica gel, now by the color filling of chalk 3 nib in depression, when after starting writing, the depression of silica gel backboard 2 recovers smooth under the characteristic of silica gel self, blackboard is the formation of the effect of a pen, it is achieved on blackboard, easily write out block letter font, simplifies the problem that when writing, stroke puts down punching.

Embodiment 1

As in figure 2 it is shown, backboard is solid silica gel plate, silica gel backboard 2 thickness is more than 5cm.

Embodiment 2

As it is shown on figure 3, the silica gel plate that backboard is Intermediate Gray honeycomb interlayer 4, the sheet thickness constituting honeycomb in honeycomb interlayer 4 is 2 millimeters, and adding honeycomb interlayer 4 structure purpose is make the rebound velocity on blackboard surface 1 faster.

Claims

1. a blackboard, including backboard and blackboard surface, it is characterised in that: described backboard is the rectangle that silica gel is made, and described blackboard surface is formed through hacking process by the coating being sprayed on backboard upper surface.

2. a kind of blackboard according to claim 1, it is characterised in that: described backboard is solid silica gel plate.

3. a kind of blackboard according to claim 1, it is characterised in that: described backboard is the silica gel plate of Intermediate Gray honeycomb interlayer.

4. a kind of blackboard according to Claims 2 or 3, it is characterised in that: described blackboard surface is suitable for chalk and writes herein above, and easily wipes.

5. a kind of blackboard according to claim 3, it is characterised in that: the sheet thickness constituting honeycomb in described honeycomb interlayer is 2 millimeters.