CN2361481Y

CN2361481Y - Background colour changeable chalk writing board

Info

Publication number: CN2361481Y
Application number: CN 98243175
Authority: CN
Inventors: 张玉华
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-17
Filing date: 1998-10-17
Publication date: 2000-02-02
Anticipated expiration: 2008-10-17

Abstract

The utility model relates to a background color changeable chalk writing board. An upper reel and a lower reel are arranged between a writing board and a wall in a writing board frame, and a background cloth on which certain colors and patterns are printed is arranged between the upper reel and the lower reel. The writing board is made of transparent ground glass. The utility model has the advantages that the display forms are diversified, students' visual effect can be effectively adjusted so as to protect students' vision, students' attention can be attracted through the background of the utility model, which is convenient for teachers to teach, etc. The utility model overcomes the defects of the prior art.

Description

The transformable chalk writing board of a kind of background colour

The utility model relates to and a kind ofly mainly utilizes various chalks to write plate as the didactic works of writing implement, specifically refers to the transformable chalk writing board of a kind of background colour.

(comprise primary school in the existing tutoring system, middle school and university) what adopted is that the didactic works of writing implement is write plate with the chalk, normally common blackboard, this blackboard mainly is to utilize timber, cement or glass are write panel, and adopt black look as a setting, during use, utilize common white chalk as writing implement, though it is bigger to adopt this mode to have color contrast, advantages such as written contents is comparatively obvious, but also exist the color and luster dullness simultaneously, long student's the visual fatigue that causes easily of time, and the form of expression is uninteresting, is difficult to attract by ways of writing student's deficiencies such as notice.

The purpose of this utility model is to provide a kind of background colour transformable chalk writing board, with by the clipboard background of its multicolour, many contents and the clipboard structure of its background of conversion easily, make it in the writing function while that keeps original technology effectively, also have form of expression variation, can regulate student's visual effect and the advantages such as notice that can attract the student effectively by its background.

The purpose of this utility model realizes in the following manner: the transformable chalk writing board of a kind of background colour, consist predominantly of the clipboard framework, clipboard and corresponding positioner, wherein clipboard is fixed on the clipboard framework, the clipboard framework is fixed by positioning device on wall or bracing frame, it is characterized in that clipboard and between the walls in the clipboard framework are provided with upper winding shaft and lower winding shaft, device has the background cloth that is printed with certain color or pattern on it between upper winding shaft and lower winding shaft, this background cloth can be by said reel rotation and up-down adjustment, above-mentioned clipboard adopts transparent ground glass.

Adopt the transformable chalk writing board of background colour of the present utility model; owing to adopted the clipboard background with multicolour, many contents and the clipboard structure of its background of conversion easily; make it in the writing function while that keeps original technology effectively; also have form of expression variation, can regulate effectively the student visual effect, the protection student eyesight and can by its background attract the student notice, make things convenient for advantages such as teacher imparts knowledge to students, overcome the deficiencies in the prior art preferably.

Description of drawings:

Accompanying drawing is a kind of example structure schematic diagram of the present utility model.

Wherein: 1-clipboard framework, 2-clipboard, 3-wall, 4-upper winding shaft, 5-background cloth, 6-lower winding shaft.

Below in conjunction with drawings and Examples the utility model is further described.

As shown in the figure, the transformable chalk writing board of a kind of background colour of the present utility model, consist predominantly of clipboard framework (1), clipboard (2) and corresponding positioner, wherein clipboard (2) is fixed on the clipboard framework (1), clipboard framework (1) is fixed by positioning device on wall (3) or bracing frame, it is characterized in that being provided with upper winding shaft (4) and lower winding shaft (6) between clipboard (2) in clipboard framework (1) and the wall (3), device has the background cloth (5) that is printed with certain color or pattern on it between upper winding shaft (4) and lower winding shaft (6), this background cloth (5) can be by said reel rotation and up-down adjustment, above-mentioned clipboard (2) adopts transparent ground glass.Above-mentioned background cloth (5) is close to the back side of clipboard (2).

When concrete enforcement, said reel can adopt its rotation of driven by motor, also can manually rotate by the device handle, regulates relevant position that is arranged on the background cloth on the spool and then the background of regulating clipboard thereby reach.In specific implementation process, background board in the clipboard framework and between the walls also can be provided with corresponding light source, to increase teaching efficiency.

Claims

1, the transformable chalk writing board of a kind of background colour, consist predominantly of clipboard framework (1), clipboard (2) and corresponding positioner, wherein clipboard (2) is fixed on the clipboard framework (1), clipboard framework (1) is fixed by positioning device on wall (3) or bracing frame, it is characterized in that being provided with upper winding shaft (4) and lower winding shaft (6) between clipboard (2) in clipboard framework (1) and the wall (3), device has the background cloth (5) that is printed with certain color or pattern on it between upper winding shaft (4) and lower winding shaft (6), this background cloth (5) can be by said reel rotation and up-down adjustment, above-mentioned clipboard (2) adopts transparent ground glass.

2, the transformable chalk writing board of a kind of background colour according to claim 1 is characterized in that above-mentioned background cloth (5) is close to the back side of clipboard (2).