CN201376422Y - Novel blackboard - Google Patents

Abstract

The utility model relates to a novel blackboard, which comprises a board body and two small board bodies. The board body is of a cuboidal structure. Long strip grooves are arranged at the upper end and the lower end of the board body. Slide rails are arranged in the grooves. The slide rails respectively extend toward the two ends and exceed the surface of the board. A rotating shaft is arranged at the extension end of each slide rail. The small board bodies are of cuboidal structures. Convex ends are arranged at the upper end and the lower end of each small board body. The height of the convex end is equal to the inner diameter of the slide rail. The extension end of the slide rail is larger than the width of the small board body. A long strip ash groove with an upward opening is arranged at the lower end of the board body. The bottom surface of the ash groove is inclined. A pull door is arranged at the lower end. During teaching, the board body can be used for writing. If the area of the board body is not enough, the small board bodies can be inserted into the slide rails to increase the area for writing. If the light reflection situation occurs, the rotating shaft of the slide rail can be adjusted until the angle is proper. Since the bottom surface of the ash groove below the board body is inclined, the ash can be collected and removed conveniently. The utility model has the advantages of simple structure, convenient use, strong adjustability, wide application and the like.

Description

New blackboard

Technical field

The utility model relates to a kind of teaching aid, especially a kind of new blackboard.

Background technology

In the teaching process, blackboard plays important effect as requisite teaching aid, but increasing along with learning content, existing plate face often can not satisfy writes requirement, favourable help can't be provided, simultaneously, because reflective phenomenon appears in blackboard easily, cause the classmate of both sides, classroom can't see writing on the blackboard clearly, had a strong impact on teaching efficiency, in order to address the above problem, we provide a kind of new blackboard very necessary.

Summary of the invention

The purpose of this utility model has overcome above-mentioned said deficiency, and a kind of convenient and practical new blackboard is provided.

For achieving the above object, the utility model new blackboard comprises plate body and little plate body, and plate body is a rectangular structure, two ends are equipped with the strip groove up and down, be provided with slideway in it, slideway extends and exceeds the plate face to two ends respectively, and the slideway external part is provided with rotating shaft near the plate body place, little plate body is a rectangular structure, two ends are equipped with the protruding end up and down, and the protruding end height is identical with the slideway internal diameter, and slideway external part length is greater than platelet body width; The plate body lower end is provided with strip upper shed dust groove, and the dust groove bottom is the inclined-plane, is provided with sliding door at low side.

After adopting said structure, in teaching process, can normally on the plate face, write, when write area is not enough, the platelet body can be inserted in the slideway, increased write area, little plate body can be free to slide in slideway, when serving as a teacher the written contents that needs the shutter face, little plate body can be slided into plate body the place ahead, play the effect of shutter; When reflective phenomenon occurring, can regulate the rotating shaft of slideway, reach till the suitable angle; The dust groove bottom of plate body below is the inclined-plane, makes things convenient for the collection and the cleaning of dust.

The utility model has the advantages that: simple in structure, easy to use, controllability is strong, applied widely etc.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model new blackboard.

The specific embodiment

As shown in Figure 1, the utility model new blackboard comprises plate body 1-1 and platelet body 1-2, and plate body 1-1 is a rectangular structure, two ends are equipped with the strip groove up and down, be provided with slideway 2 in it, slideway 2 extends and exceeds plate face 1-1 to two ends respectively, and slideway 2 external parts are provided with rotating shaft 3 near plate body 1-1 place, platelet body 1-1 is a rectangular structure, two ends are equipped with protruding end 4 up and down, and protruding end 4 height are identical with slideway 2 internal diameters, and slideway 2 external part length are greater than platelet body 1-2 width; Plate body 1-1 lower end is provided with strip upper shed dust groove 5, and dust groove 5 bottom surfaces are the inclined-plane, is provided with sliding door 6 at low side.

Claims (1)

1, a kind of new blackboard, comprise plate body (1-1) and little plate body (1-2), it is characterized in that: plate body (1-1) is rectangular structure, two ends are equipped with the strip groove up and down, be provided with slideway (2) in it, slideway (2) extends and exceeds plate face (1-1) to two ends respectively, slideway (2) external part locates to be provided with rotating shaft (3) near plate body (1-1), little plate body (1-1) is a rectangular structure, two ends are equipped with protruding end (4) up and down, protruding end (4) height is identical with slideway (2) internal diameter, and slideway (2) external part length is greater than little plate body (1-2) width; Plate body (1-1) lower end is provided with strip upper shed dust groove (5), and dust groove (4) bottom surface is the inclined-plane, is provided with sliding door (6) at low side.

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