CN103895430A

CN103895430A - Blackboard eraser capable of preventing powder from scattering

Info

Publication number: CN103895430A
Application number: CN201410155842.4A
Authority: CN
Inventors: 刘征宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-18
Filing date: 2014-04-18
Publication date: 2014-07-02

Abstract

The invention discloses a blackboard eraser capable of preventing powder from scattering. The blackboard eraser comprises a groove-shaped cover. The two parallel side walls of the groove-shaped cover are connected with two or more damping rotating shafts connected with idler wheels respectively, the two or more idler wheels are sleeved with eraser belts in a connecting mode, the end face of a bottom plate of the groove-shaped cover is provided with scraping strips, the bottom plate is provided with powder absorbing holes, and the rotating eraser belts can make contact with the scraping strips. The other end face of the bottom plate of the groove-shaped cover is connected with a detachable powder collecting box, and the bottom of the powder collecting box is connected with an electrostatic plate and an electrostatic generator. The powder is removed based on the electrostatic adsorption principle and is collected in a unifying mode, the scattering of the powder can be reduced, the wiping effect of the blackboard eraser can be improved, the blackboard eraser is convenient to use, energy is saved, and the environmental friendliness is facilitated.

Description

A kind of blackboard eraser that can prevent that dust from scattering

Technical field

The present invention relates to a kind of blackboard eraser that can prevent that dust from scattering, belong to realia technical field.

Background technology

At teaching field, blackboard, chalk and blackboard eraser are the most common, the most widely used educational aids, it has also brought some harm simultaneously bringing easily, wherein maximum problem is exactly in wiping letter written with chalk, chalk dust can fly upward everywhere, easily sucked lung by human body, grievous injury the healthy of teacher and the classmate nearer apart from blackboard of knowing clearly; Simultaneously the noodles on existing blackboard eraser because of can not be instant its surperficial chalk dust is cleared up, cause blackboard eraser wiping effect poor.

Summary of the invention

The technical problem to be solved in the present invention be to provide a kind of wiping effect good, can prevent the blackboard eraser that dust scatters, can overcome the deficiencies in the prior art.

Technical solution of the present invention is: can prevent the blackboard eraser that dust scatters, it comprises grooved cover body, on two parallel side walls of grooved cover body, be connected with plural band Damping rotation shaft, on Damping rotation shaft, be connected with respectively roller, on plural roller, be socketed with and wipe band, on the base plate end face of grooved cover body, be provided with scraping article, and offer air suction opening on base plate, the wiping band of rotation can contact with scraping article; Other end at grooved cover body base plate is connected with the disposal box that can separate, is connected with static board and electrostatic generator in the bottom of disposal box.

The above-mentioned blackboard eraser that dust scatters that can prevent is, is provided with lower shoe, forms hollow layer below grooved cover body base plate, and disposal box, static board and electrostatic generator are positioned at hollow layer.

The aforesaid blackboard eraser that can prevent that dust from scattering is on the lower shoe that forms hollow layer, to offer the extraction hole of battery installing hole and disposal box.

Compared with the prior art, the present invention compares existing blackboard eraser and has the following advantages: by wiping with rotation absorption dust, in the time wiping tape running to scraping article, dust is scraped, enter disposal box by scraping article aperture around, due to the attraction of static board, dust is attracted to disposal box the inside, can prevent like this dispersing of dust, and the instant chalk dust that wiping is brought is cleared up the wiping effect that can guarantee blackboard eraser continuously, dust collecting box is flexible connection, the dust that easy cleaning is collected.The rotation of simultaneously wiping band can have been saved user's strength.The setting of hollow layer is convenient to disposal box, static board and electrostatic generator and is fixed, and makes the present invention's integration more, guarantees service life and result of use.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is structure schematic diagram of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention will be further described, as shown in Fig. 1 Fig. 2, installation main body of the present invention is grooved cover body 1, grooved cover body 1 adopts double-deck bottom surface, between base plate and lower shoe 10, be provided with certain gap and form hollow layer, be positioned at hollow layer for disposal box 7, static board 8 and the electrostatic generator 9 of collecting chalk dust; On the lower shoe 10 that forms hollow layer, offer the extraction hole 11 of battery installing hole 12 and disposal box 7.On two parallel side walls of grooved cover body 1, be connected with plural band Damping rotation shaft 2, in figure, be four, on Damping rotation shaft 2, be connected with respectively roller 3, on four horizontally disposed rollers 3, be socketed with to wipe and be with 4, when wiping is with 4 stressedly to wipe and rotate with Damping rotation shaft 2 while being greater than resistance, on the base plate end face of grooved cover body 1, be provided with scraping article 5, and offer air suction opening 6 in the both sides of base plate scraping article 5, scraping article designing requirement is that the wiping of rotating is with 4 can contact with scraping article 5.

Its use procedure and principle are, in the time erasing the board, wipe the rotation absorption dust stressed with 4, when wiping is with 4 to run to scraping article 5 places, dust is scraped, enter disposal box 7 by scraping article air suction opening 6 around, due to the attraction of static board 8, dust is attracted to disposal box 7 the insides, can prevent like this dispersing of dust, and the instant chalk dust that wiping is brought is cleared up the wiping effect that can guarantee blackboard eraser continuously, this blackboard eraser is using after certain hour, extracts disposal box 7 out dust is cleared up.

Claims

1. the blackboard eraser that can prevent that dust from scattering, it comprises grooved cover body (1), it is characterized in that: on two parallel side walls of grooved cover body (1), be connected with plural band Damping rotation shaft (2), on Damping rotation shaft (2), be connected with respectively roller (3), on plural roller (3), be socketed with and wipe band (4), on the base plate end face of grooved cover body (1), be provided with scraping article (5), and on base plate, offer air suction opening (6), the wiping band (4) of rotation can contact with scraping article (5); Be connected with the disposal box (7) that can separate in the other end of grooved cover body (1) base plate, be connected with static board (8) and electrostatic generator (9) in the bottom of disposal box (7).

2. the blackboard eraser that can prevent that dust from scattering according to claim 1, it is characterized in that: be provided with lower shoe (10) in the below of grooved cover body (1) base plate, form hollow layer, disposal box (7), static board (8) and electrostatic generator (9) are positioned at hollow layer.

3. the blackboard eraser that can prevent that dust from scattering according to claim 2, is characterized in that: the extraction hole (11) that offers battery installing hole and disposal box (7) on the lower shoe (10) that forms hollow layer.