CN202242647U

CN202242647U - Wet absorption type dust-free black board eraser

Info

Publication number: CN202242647U
Application number: CN2011204074468U
Authority: CN
Inventors: 王树强; 刘希敏; 张坤
Original assignee: Shenyang University of Chemical Technology
Current assignee: Shenyang University of Chemical Technology
Priority date: 2011-10-24
Filing date: 2011-10-24
Publication date: 2012-05-30
Anticipated expiration: 2021-10-24

Abstract

A wet absorption type dust-free black board eraser comprises a hollow hairbrush, a small-scale direct-current induced draught fan, a wet absorber and a dustproof belt and is characterized in that the lower part of a current deflecting cover (1) is provided with a wet cotton yarn (2); the direct-current induced draught fan (4) is arranged between the wet cotton yarn (2) and the hairbrush (3); the hairbrush is machined with bar-shaped hollow ventilating bar-type holes (5); the edge of the black board eraser is provided with the flexible dustproof belt (6); brush hair units (8) and hollow bar-type holes (7) are machined on a wooden baseplate (9) and are distributed evenly; the dustproof belt (6) is made of a belt type flexible material and is wrapped around the periphery of the black board eraser, and the dustproof belt is slightly lower than the hairbrush; and the wet cotton yarn (2) is made of porous cotton fibers in a sheet shape. The absorbing wet cotton yarn of the wet absorption type dust-free black board eraser can be used repeatedly after cleaned, and the black board eraser is small in volume, light in weight, simple in structure, convenient in operation and low in cost.

Description

Wet absorption dust-free black board eraser

Technical field

The utility model relates to a kind of blackboard eraser, particularly relates to a kind of wet absorption dust-free black board eraser.

Background technology

Blackboard is as a kind of indispensable teaching aid applied more and more, and the problem that for many years always perplexs everybody is that chalk dust is existed everywhere, and not only contaminated environment but also harmful teachers and students are healthy for these.At present, dust-free black board eraser is not a lot, and what most of schools used is that trade edition is wiped.Common blackboard eraser probably has two types.The first kind: the hairiness formula, can produce a large amount of dusts during this type of blackboard eraser cleaning blackboard, first three row's desk and teacher dais can fall to expiring dust; Second type: do not have the hair formula, produce less dust during this type of blackboard eraser cleaning blackboard, but the surface is stained with very easily, wipe clean blackboard, and can produce a large amount of dusts again during the cleaning blackboard eraser.Can not satisfy instructions for use.Also occurred several kinds of dust-free black board erasers at present on the market, but its dust way of recycling is to do to absorb basically, utilizes some high-power machinery arrangement works, volume is big, and cost is high, uses inconvenience.

Summary of the invention

The purpose of the utility model is to provide a kind of wet absorption dust-free black board eraser; Be a kind of device that absorbs chalk dust by wet cotton yarn; Wet absorption dust-free black board eraser is with low cost, simple in structure, easy to use, be easy to popularize, and only need open switch just can be as using ordinary blackboard eraser to clear up.

The purpose of the utility model realizes through following technical scheme:

Wet absorption dust-free black board eraser comprises the hollow out hairbrush, the small-sized DC air-introduced machine; The wet absorption device, anti-dust lane, the bottom of kuppe is provided with wet cotton yarn; The direct current air-introduced machine, be installed between wet cotton yarn and the hairbrush, have the ventilation bar hole of strip hollow out on the hairbrush, flexible anti-dust lane is set at the blackboard eraser edge; Be shaped on hair and hollow out bar hole on the wooden base plate, brush unit and hollow out bar hole evenly distribute.

Described wet absorption dust-free black board eraser, its described anti-dust lane 6 is wrapped in around the blackboard eraser for banded flexible material, and anti-dust lane height is a little less than the hairbrush height.

Described wet absorption dust-free black board eraser, the porous cotton fiber that its described wet cotton yarn 2 is a sheet.

The advantage and the effect of the utility model are:

The utility model absorbs cotton yarn back capable of washing to be reused, and the blackboard eraser volume is little, and is in light weight, simple in structure, easy to operate, with low cost.

Description of drawings

Fig. 1 is the operation principle sketch map of the utility model;

Fig. 2 is the utility model hair brush structure sketch map.

The specific embodiment

With reference to the accompanying drawings the utility model is elaborated.

The utility model can lean on the directed delivery of wind chalk dust, and is that second medium absorbs chalk dust with water.On the basis of common hairbrush, have the air vent of strip hollow out, the edge is provided with flexible anti-dust lane, adds the direct current air-introduced machine at the rear portion of air vent, and certain distance is provided with the cotton yarn dust exhaust apparatus at interval.Blow to wet cotton yarn to hairbrush dust of producing in the process of cleaning blackboard through the bar hole sucking-off through the direct current air-introduced machine, adhere to wet cotton yarn afterwards, unnecessary wind is discharged through radome fairing.Design has taken into full account the dust side leakage, and blackboard eraser cleans, and the raising assimilation effect that takes effective measures.This device manufacturing process is simple, and is easy to use, only needs the user to press switch, just can wipe effective and the wiping process free from dust as using ordinary blackboard eraser to clear up blackboard.The utility model blackboard eraser has the air vent of strip hollow out on the basis of common hairbrush, the edge is provided with flexible anti-dust lane, adds the direct current air-introduced machine at the rear portion of air vent, and certain distance is provided with the cotton yarn dust exhaust apparatus at interval.Blow to wet cotton yarn to hairbrush dust of producing in the process of cleaning blackboard through the bar hole sucking-off through the direct current air-introduced machine, adhere to wet cotton yarn afterwards, unnecessary wind is discharged through radome fairing.

As shown in Figure 1, wet absorption dust-free black board eraser comprises water conservancy diversion 1 cover, hairbrush 3, direct current air-introduced machine 4, wet cotton yarn 2 and anti-dust lane 6.When work; Said hairbrush 3 is wiped floating dust and is attracted to flow in the blackboard eraser body via bar hole 5 by said direct current air-introduced machine 4; Flow out to said wet cotton yarn 2 places by the other end afterwards, its mixture filters surplus air through cotton yarn and is flowed out by said kuppe 1, and dust is adsorbed by said wet cotton yarn; The disassembly, cleaning at any time of wet cotton yarn at one end are provided with little water tank and keep its humidity.

Be provided with anti-dust lane 6 at the edge of blackboard eraser, said anti-dust lane 6 is made dust side leakage when being used for preventing work for the macromolecule flexible material.

As shown in Figure 2, the basic structure of blackboard eraser hairbrush is included as hollow out bar hole 7, hair 8, wooden base plate 9.Said brush unit 8 evenly distributes with said hollow out bar hole 7.

Claims

1. wet absorption dust-free black board eraser comprises the hollow out hairbrush, the small-sized DC air-introduced machine; The wet absorption device, anti-dust lane is characterized in that; The bottom of kuppe (1) is provided with wet cotton yarn (2); Direct current air-introduced machine (4), be installed between wet cotton yarn (2) and the hairbrush (3), have the ventilation bar hole (5) of strip hollow out on the hairbrush, flexible anti-dust lane (6) is set at the blackboard eraser edge; Be shaped on hair (8) and hollow out bar hole (7) on the wooden base plate (9), brush unit (8) evenly distributes with hollow out bar hole (7).

2. wet absorption dust-free black board eraser according to claim 1 is characterized in that described anti-dust lane (6) is wrapped in around the blackboard eraser for banded flexible material, and anti-dust lane height is a little less than the hairbrush height.

3. wet absorption dust-free black board eraser according to claim 1 is characterized in that described wet cotton yarn (2) is the porous cotton fiber of sheet.