CN204055050U - Environmental protection is dust-proof without the healthy teaching tablet of backlight - Google Patents

Abstract

The utility model discloses a kind of environmental protection dust-proof without the healthy teaching tablet of backlight, solve the problem of chalk dust contaminated environment in classroom, it is characterized in that between described grillage, plate face for hollow, gather the aperture of some diameter 0.1-0.15mm through plate face in described plate face, and described grillage, lower end, plate face arrange dust drawer; Described dust drawer comprises powder box and chalk table top.The utility model can prevent dust from flying, greatly improves classroom environment, reclaims chalk powder recycling; The aperture gathered in plate face can avoid blackboard reflective light to cause partial students not see the situation of word; The chalk table top of dust drawer also can place chalk.

Description

Environmental protection is dust-proof without the healthy teaching tablet of backlight

Technical field

The utility model relates to a kind of protecting teaching writing board, relates to a kind of writing blackboard of classroom or rather.

Background technology

Along with the development of national science and technology educational undertaking, teaching environment has had very large improvement.But at present, at the widely used blackboard of school mostly still " hard plate ", writing implement is chalk mainly, remove the main still blackboard eraser of instrument of letter written with chalk.Can produce more dust from flying aloft when erasing the board, cause air pollution of classroom, and dust is easy to suck the nasal cavity of Faculty and Students and affects the health of teachers and students, and especially the student of teacher and a few row that sits in front is among dust atmosphere for a long time.

Summary of the invention

The purpose of this utility model is that overcoming the deficiencies in the prior art provides a kind of environmental protection dust-proof without the healthy teaching tablet of backlight, can prevent dust from flying, reclaim chalk powder, improve classroom environment, avoid blackboard reflective light to cause partial students not see word.

The utility model comprises grillage, plate face, it is characterized in that for hollow between described grillage, plate face, described plate face gather some diameter 0.1-0.15mm, cross plate face aperture, described grillage, lower end, plate face arrange dust drawer; Described dust drawer comprises powder box and chalk table top.

Like this, the dust produced when erasing the board can the aperture in transmitting plate face to enter between grillage, plate face hollow, directly fall in the powder box of dust drawer.

As shown from the above technical solution, the utility model can prevent dust from flying, greatly improves classroom environment, reclaims chalk powder recycling; The aperture gathered in plate face can avoid blackboard reflective light to cause partial students not see the situation of word; The chalk table top of dust drawer also can place chalk.

Accompanying drawing explanation

Fig. 1 is front view of the present utility model.

Fig. 2 is the utility model left view.

In figure, 1. grillage, 2. plate face, 3. aperture, 4. dust drawer; 41. dust boxes, 42. chalk table tops.

Detailed description of the invention

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

As shown in Figure 1, 2, the utility model comprises grillage 1, plate face 2, is hollow between described grillage 1, plate face 2, and the aperture 3 in plate face 2 is crossed in the plate face 2 closely some diameter 0.1-0.15mm sizes of arrangement.Described grillage 1, lower end, plate face 2 arrange dust drawer 4; Described dust drawer 4 comprises powder box 41 and chalk table top 42.Powder box 41 reclaims powder, and chalk table top 42 can place chalk.

Described dust drawer 4 can be made multiple, is convenient to push-and-pull, placement.

Claims (1)

1. an environmental protection is dust-proof without the healthy teaching tablet of backlight, comprise grillage (1), plate face (2), it is characterized in that between described grillage (1), plate face (2) for hollow, described plate face (2) gather some diameter 0.1-0.15mm, through plate face (2) aperture (3), described grillage (1), plate face (2) lower end arrange dust drawer (4); Described dust drawer (4) comprises powder box (41) and chalk table top (42).