CN206870700U

CN206870700U - A kind of spoke type dust-free black board eraser

Info

Publication number: CN206870700U
Application number: CN201720353083.1U
Authority: CN
Inventors: 邱浩
Original assignee: China University of Petroleum East China
Current assignee: China University of Petroleum East China
Priority date: 2017-04-04
Filing date: 2017-04-04
Publication date: 2018-01-12
Anticipated expiration: 2027-04-04

Abstract

The utility model discloses a kind of spoke type dust-free black board eraser, including hairbrush, trip bolt, housing and cleaner, the hairbrush is connected with trip bolt, the hairbrush uses sponge material, elongate in shape is made, radially it is uniformly distributed by trip bolt on housing, groove is formed between the raised hairbrush, the trip bolt can be turned on by screwdriver, the cleaner is connected with housing, the cleaner is located at enclosure interior, the cleaner is a dry type filter element, the housing is connected with hairbrush, the housing bottom is fabricated to circular configuration, size is set according to the hand size of people.The beneficial effects of the utility model are as follows：By radially equally distributed hairbrush, groove is formed, in blackboard wiping, chalk powder is fallen into the cleaner in groove, and cleaner has very strong adsorption capacity, reaches the effect of absorption chalk powder, so as to prevent chalk powder from descending slowly and lightly into air, clean hygiene is healthy.

Description

A kind of spoke type dust-free black board eraser

Technical field

Teaching equipment field is the utility model is related to, specially a kind of spoke type dust-free black board eraser.

Background technology

In classroom instruction, teacher is write on the blackboard taught content with chalk, when blackboard eraser blackboard wiping is used after writing, A large amount of chalk powders can be produced, are descended slowly and lightly in classroom, substantial amounts of chalk powder is inevitably sucked in human body by teacher or student, right The respiratory system of people produces harm, brings healthy hidden danger to the body of people in the course of time.

The content of the invention

The purpose of this utility model is to provide a kind of spoke type dust-free black board eraser, to solve the blackboard proposed in above-mentioned background Wipe in blackboard wiping, cause the chalk powder health given people in air of being scattered to bring the troublesome problems such as hidden danger.

To achieve the above object, the utility model provides following technical scheme：A kind of spoke type dust-free black board eraser, including hair Brush, trip bolt, housing and cleaner, the hairbrush are connected with trip bolt, and the hairbrush uses sponge material, and strip is made Shape, radially it is uniformly distributed by trip bolt on housing, groove, the fastening spiral shell is formed between the hairbrush Nail can be turned on by screwdriver, and the cleaner is connected with housing, and the cleaner is located at enclosure interior, and the cleaner is One dry type filter element, material for core are filter paper or non-woven cloth, and Surface Machining connects into many microscopic folds, the housing with hairbrush Connect, the housing bottom is fabricated to circular configuration, and size is set according to the hand size of people.

Preferably, the surface of shell is fabricated to texture structure.

Preferably, the hairbrush edge and housing surrounding are connected as sealing structure, with blackboard it is sturdy when form sealing space.

Compared with prior art, the beneficial effects of the utility model are：By radially equally distributed hairbrush, formed Groove, in blackboard wiping, chalk powder is fallen into the cleaner in groove, and cleaner has very strong adsorption capacity, reaches absorption The effect of chalk powder, so as to prevent chalk powder from descending slowly and lightly into air, clean hygiene is healthy.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

In figure：Hairbrush (1), trip bolt (2), housing (3), cleaner (4).

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of spoke type dust-free black board eraser, including hairbrush (1), Trip bolt (2), housing (3) and cleaner (4), the hairbrush (1) are connected with trip bolt (2), and the hairbrush (1) is using sea Continuous material, elongate in shape is made, is radially uniformly distributed by trip bolt (2) on housing (3), the hairbrush (1) groove is formed between, the trip bolt (2) can be turned on by screwdriver, and the cleaner (4) is connected with housing (3), It is internal that the cleaner (4) is located at housing (3), and the cleaner (4) is a dry type filter element, and material for core is filter paper or non-knitted Cloth is made, Surface Machining is connected into many microscopic folds, the housing (3) with hairbrush (1), and housing (3) bottom is fabricated to circle Shape structure, size are set according to the hand size of people.

Operation principle：When with blackboard eraser blackboard wiping, hairbrush (1) is bonded with blackboard and forms sealing space, now by The chalk powder wiped is flowed into the closing space in housing (3), and cleaner (4) is provided with housing (3), and cleaner (4) is used for reference The construction of car hollow air cleaner, the fold on cleaner (4) surface can increase adsorption area, so as to effectively adsorb more More chalk powders, so as to reach dustless effect, while the screw for fastening hairbrush (1) can be dismantled, and one section is used in blackboard eraser When after, trip bolt (2) is backed out, takes out the internal cleaner (4) of housing (3), the chalk powder on cleaner (4) can make Cleaned with compressed air, reached the effect recycled.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

A kind of 1. spoke type dust-free black board eraser, it is characterised in that：Including hairbrush, trip bolt, housing and cleaner, the hairbrush with Trip bolt connects, and the hairbrush uses sponge material, elongate in shape is made, and is radially uniformly distributed peace by trip bolt On housing, groove is formed between the hairbrush, the trip bolt can be turned on by screwdriver, the cleaner and shell Body connects, and the cleaner is located at enclosure interior, and the cleaner is a dry type filter element, and material for core is filter paper or non-woven Cloth, Surface Machining are connected into many microscopic folds, the housing with hairbrush, and the housing bottom is fabricated to circular configuration, size Set according to the hand size of people.
A kind of 2. spoke type dust-free black board eraser according to claim 1, it is characterised in that：The surface of shell is fabricated to lines Structure.
A kind of 3. spoke type dust-free black board eraser according to claim 1, it is characterised in that：The hairbrush edge and housing surrounding Be connected as sealing structure, with blackboard it is sturdy when form sealing space.