CN2756463Y

CN2756463Y - Dust removing blackboard eraser

Info

Publication number: CN2756463Y
Application number: CN 200420075450
Authority: CN
Inventors: 王庆显
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-21
Filing date: 2004-12-21
Publication date: 2006-02-08
Anticipated expiration: 2014-12-21

Abstract

The utility model relates to a dust removing blackboard eraser, which belongs to a blackboard eraser appliance. The utility model is formed by connecting a box body, a rolling felt wheel, a partition board, a dust discharging outlet and dust scraping brushes. When the utility model is used, the box body is taken by hands to rightward and leftward clean the blackboard surface with the rolling felt wheel, the right dust scraping brush stops the right rolling felt wheel to clean the chalk dust at leftward cleaning time, the cleaned dust is transported in the box by the left rolling felt wheel, the left dust scraping brush stops the left rolling felt wheel to clean the chalk dust at rightward cleaning time, the cleaned dust is transported in the box by the right rolling felt wheel and the two wheels rotate towards middle part and do not rotate outward under the help of the inclined dust scraping brush. The device has the advantages of simple structure, convenient operation, environment cleaning and dust reusing.

Description

Dust-removing blackboard eraser

One, technical field: the utility model relates to a kind of blackboard scraper, especially dust-removing blackboard eraser.

Two, background technology: the used blackboard eraser of imparting knowledge to students at present is varied, and generally usefulness is the stick together blackboard eraser of form of snag and plank, wipes the chalk mark by snag, causes dust from flying, and such blackboard eraser influences environment and teachers and students are healthy.

Three, summary of the invention: the purpose of this utility model provides dust-removing blackboard eraser, it has overcome the shortcoming of other blackboard eraser, the purpose of this utility model be achieved in that it be by box body, roll bob, dividing plate, dust-exhausting port, the dust blowing brush is formed by connecting, roll bob and be installed on the box body by axle; Dividing plate is installed in two and rolls in the middle of the bob; The back side of box body is ventilative dirt filtrating screen, and the dust blowing brush is fixed on the ventilative dirt filtrating screen and is positioned at the dividing plate both sides, and the dust blowing of both sides brush direction is opposite outward-dipping respectively, and dust blowing brush top is close to and is rolled bob; Dust-exhausting port is positioned at an end of box body.

During use, hand is taken box body, and it is moving facing to wiping about blackboard surface to roll bob, wipes left, rolls bob by the right side dust blowing brush stop right side and wipes the chalk mark, and transmitted in box by crocus dirt by the bob that rolls left; Wipe to the right by the left side dust blowing brush stop bob that rolls left and wipe the chalk mark, and the right side is rolled bob and transmitted in box by crocus dirt; Two-wheel rotates and outwards do not rotate to the centre is to be helped by the dust blowing brushing of tilting to carry out.

This apparatus structure is simple, and is easy to operate, cheap, cleaned environment, also powder can be utilized again.

Four, description of drawings: Fig. 1 is the structural representation of dust-removing blackboard eraser, among the figure 1, box body 2, roll bob 3, dividing plate 4, dust-exhausting port

Fig. 2 is the structural representation of dust-removing blackboard eraser, among the figure 3, dividing plate 5, dust blowing brush

Fig. 3 is the box body structure schematic diagram in the dust-removing blackboard eraser

Fig. 4 is for rolling the bob structural representation in the dust-removing blackboard eraser

Five, the specific embodiment: in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, roll bob 2 and be installed on the box body 1 by axle; Dividing plate 3 is installed in two and rolls in the middle of the bob 2; The back side of box body 1 is ventilative dirt filtrating screen, and dust blowing brush 5 is fixed on the ventilative dirt filtrating screen and is positioned at dividing plate 3 both sides, and the dust blowing of both sides to brush 5 directions opposite outward-dipping respectively, dust blowing is brushed 5 tops and is close to and rolls bob 2; Dust-exhausting port 4 is positioned at an end of box body 1.

Claims

1, dust-removing blackboard eraser be by box body (1), roll bob (2), dividing plate (3), dust-exhausting port (4), dust blowing brush (5) is formed by connecting, it is characterized in that: roll bob (2) and be installed on the box body (1) by axle; Dividing plate (3) is installed in two and rolls in the middle of the bob (2); The back side of box body (1) is ventilative dirt filtrating screen, and dust blowing brush (5) is fixed on the ventilative dirt filtrating screen and is positioned at dividing plate (3) both sides, and the dust blowing of both sides brush (5) direction is outward-dipping respectively on the contrary, and dust blowing brush (5) top is close to and is rolled bob (2); Dust-exhausting port (4) is positioned at an end of box body (1).