CN201120811Y

CN201120811Y - Multifunctional blackboard eraser

Info

Publication number: CN201120811Y
Application number: CNU2007200128104U
Authority: CN
Inventors: 韩昕卓
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-21
Filing date: 2007-06-21
Publication date: 2008-09-24
Anticipated expiration: 2017-06-21

Abstract

The utility model relates to a multi-functional blackboard eraser, which comprises a board surface and a pulling rod. Two parallel slide ways are arranged on the board surface and at the position close to the upper and lower ends; the two ends of the pulling rod are right angled structure and are inserted into the slide ways for connection; a plurality of pieces of cleaning cotton are stuck on the surface of the pulling rod, a dust collector is installed in the pulling rod, and dust collecting holes are processed on the surface of the pulling rod. When the blackboard is wiped, the power of the dust collector is switched on by a user, and the pulling rod is held by a hand to move laterally to wipe the writing through the cleaning cotton. If a large amount of chalk ash is generated, the dust collector can absorb the chalk ash into the dust collecting holes, in order to avoid flying ash. The multi-functional blackboard eraser has the advantages that the structure is reasonable, the application is broad, the craft is simple, the fabrication cost is low, the wiping efficiency can be improved, and sanitation in classrooms can be maintained.

Description

Multi-functional blackboard eraser device

Technical field

The utility model relates to a kind of teaching aid, especially a kind of multi-functional blackboard eraser device.

Background technology

In teaching process, blackboard is one of most important instrument.Though blackboard brings great convenience to teaching, there are many deficiencies also simultaneously, that can produce a large amount of dust pollutions exactly when erasing the board, to health formation grave danger of teachers and students.And present blackboard and blackboard eraser can't address this problem, and for this reason, we design a kind of multi-functional blackboard eraser device, and to solve the problems referred to above extremely important.

Summary of the invention

The purpose of this utility model provides a kind of multi-functional blackboard eraser device, is used to solve the problem that common blackboard eraser can't absorb chalk dust.

For achieving the above object, the multi-functional blackboard eraser device of the utility model comprises plate face and pull bar, offers two parallel slideways in the close position, limit, two ends up and down of plate face; The pull bar two ends are structure of right angle tyoe, and the end bar inserts slideway and connects; Many cleaning cottons are uniformly-spaced pasted on the pull bar surface, and the inner dust catcher of installing of pull bar is at pull bar surface corresponding cleaning cotton interval processing air suction opening.

After adopting said structure, in blackboard wiping, the user is the power connection of dust catcher, hold the pull bar move left and right then, by cleaning cotton wiping chalk writing, if produce a large amount of chalk dusts, dust catcher absorbs chalk dust come in from air suction opening, avoids dust disorderly to fly.

The utility model has the advantages that: rational in infrastructure, be widely used, technology is simple, cheap, can improve wiping efficient, and can keep more indoor health.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the multi-functional blackboard eraser device of the utility model.

The specific embodiment

As shown in Figure 1, the multi-functional blackboard eraser device of the utility model comprises plate face 1 and pull bar 2, offers two parallel slideways 3 in plate face 1 close position, limit, two ends up and down; Pull bar 2 two ends are structure of right angle tyoe, and the end bar inserts slideway 3 and connects; Many cleaning cottons 4 are uniformly-spaced pasted on pull bar 2 surfaces, and the pull bar 2 inner dust catchers 5 of installing are at pull bar 2 surperficial corresponding cleaning cottons 4 intervals processing air suction opening 6.

Claims

1. a multi-functional blackboard eraser device comprises plate face (1) and pull bar (2), it is characterized in that: offer two parallel slideways (3) in the close position, limit, two ends up and down of plate face (1); Pull bar (2) two ends are structure of right angle tyoe, and the end bar inserts slideway (3) and connects; Many cleaning cottons (4) are uniformly-spaced pasted on pull bar (2) surface, and the inner dust catcher (5) of installing of pull bar (2) is at the surperficial corresponding cleaning cotton of pull bar (2) (4) interval processing air suction opening (6).