CN201922794U

CN201922794U - Plate wiper capable of preventing flying of dusts

Info

Publication number: CN201922794U
Application number: CN201020174997XU
Authority: CN
Inventors: 王慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-08-10
Anticipated expiration: 2020-04-30

Abstract

The utility model provides a plate wiper capable of preventing flying of dusts, consisting of a concave wiping plate, and a wiping core arranged in the concave wiping plate, wherein a dustproof ring is arranged around the wiping core and has pores; a sealing ring is arranged on the dustproof ring; dust absorbing slots are arranged round the wiping core and on the dustproof ring; and at least one drying hole and at least one exhaust outlet are arranged at the bottom of the concave wiping plate, corresponding to the wiping core and the dustproof ring. The plate wiper can be made of materials such as traditional wood plates, plastics, felts, soft foaming plastics and the like, and can be realized easily. As the pores exist in the dustproof ring, the plate wiper has good air-breathability; furthermore, the clearance and the exhaust outlet on the concave wiping plate form an air-breathing passage, thus weakening impact on the dusts and the role of the sealing ring when the plate wiper moves to wipe chalk characters; and furthermore, owning to the function of the sealing ring, chalk dusts does not fly all around during the wiping process. The plate wiper can be made to have different dimensions, and is applicable to various accessions such as schools, departments, offices and the like, thus having extremely wide application scope. The plate wiper has the characteristics of simple structure, small volume, light weight, low cost, good durability, good dust removal effect, and the like, and has values on generalization.

Description

The blackboard eraser of anti-dust from flying

Technical field

The utility model relates to the improvement of the blackboard eraser structure of wiping letter written with chalk in the teaching aid, is a kind of blackboard eraser of anti-dust from flying specifically.

Background technology

At present, blackboard eraser is one of indispensable teaching aid in the teachers ' teaching process, can cause flying upward of chalk dust when wiping, swims in the air, has a strong impact on the healthy of teacher.Blackboard erasers such as existing dustless, dust suction, control of dust are many, but still exist complex structure, processing and manufacturing difficulty, the high deficiency of cost in various degree.

The utility model content

The purpose of this utility model is at above-mentioned deficiency, and a kind of blackboard eraser of simple in structure, cost is low, result of use is good anti-dust from flying is provided.

The technical scheme that realizes the utility model purpose is:

The blackboard eraser of this anti-dust from flying, by inside be provided with spill wiping board at interval, the wiping core that is arranged in the spill wiping board constitutes, characteristics are to be provided with the dust ring that inside has hole around the wiping core, on dust ring, be provided with sealing ring, wipe around the core and between the dust ring and be provided with dust-absorbing groove, in the spill wiping board, the spill wiping board bottom of wiping core and dust ring correspondence is respectively equipped with at least 1 dry hole and steam vent.

In order further to improve the effect of eliminating dust, the overall height of dust ring and sealing ring is a little more than the height of wiping core.Sealing ring can be the plane, or two long limit outer rims are arc limit, right-angle side.

Described steam vent and dry hole can be the hole of circular port, slot, slotted eye or other shape.

The utility model is simple in structure, and processing and manufacturing is easy, and wiping board, wiping core all can adopt traditional material, as making such as plank, plastics, felts, dust ring can adopt flexible foamed material, makes as materials such as foamed plastics, sealing ring can adopt plastic material to make, and implements easily.

The blackboard eraser of this anti-dust from flying owing to have hole in the dust ring, has the good aeration effect.And form venting channels with the steam vent that the spill wiping board is provided with.Therefore, weakened when the wiping letter written with chalk moves blackboard eraser, made that chalk dust is unlikely to fly upward when wiping everywhere the impact of dust.

The utility model can be made into the different size specification, is applicable to various occasions such as school, office, office, and range of application is very extensive.Have simple in structure, volume is little, in light weight, cost is low, durable in use, characteristics such as the dirt that disappears is effective, has promotional value.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Fig. 2 be among Fig. 1 A-A to cross-sectional view.

Fig. 3 is the backsight structural representation of Fig. 1.

Among the figure: 1, spill wiping board, 2, wipe core, 3, dust ring, 4, sealing ring, 5, steam vent, 6, dust-absorbing groove, 7, dividing plate, 8, dry hole.

The specific embodiment

The utility model is further described with the embodiment that provides below in conjunction with accompanying drawing.

Embodiment: the blackboard eraser of anti-dust from flying

With reference to accompanying drawing, this blackboard eraser with anti-dust from flying of dust ring and sealing ring is made of rectangular spill wiping board 1 and the wiping core 2 that is arranged in the spill wiping board.Around wiping core, be provided with the dust ring 3 that inside has hole, on dust ring, be provided with sealing ring 4, between dust ring and wiping core, be provided with dust-absorbing groove 6, in the spill wiping board, wipe the spill wiping board bottom of core and dust ring correspondence, be respectively equipped with dry hole 8 and steam vent 5, the overall height of dust ring and sealing ring is a little more than the height of wiping core.

The utility model applicant presses embodiment, implements the blackboard eraser of this anti-dust from flying, the on probation demonstration through inside, when using the blackboard eraser wiping letter written with chalk of this anti-dust from flying, can prevent effectively that chalk dust from flying upward everywhere, and be subjected to trier's welcome and favorable comment.

Claims

1. the blackboard eraser of an anti-dust from flying, by inside be provided with spill wiping board at interval, the wiping core that is arranged in the spill wiping board constitutes, it is characterized in that around the wiping core, being provided with the dust ring that inside has hole, on dust ring, be provided with sealing ring, wipe around the core and between the dust ring and be provided with dust-absorbing groove, in the spill wiping board, the spill wiping board bottom of wiping core and dust ring correspondence is respectively equipped with at least 1 dry hole and steam vent.

2. the blackboard eraser of anti-dust from flying according to claim 1 is characterized in that the height of the overall height of dust ring and sealing ring a little more than the wiping core.

3. the blackboard eraser of anti-dust from flying according to claim 1 it is characterized in that sealing ring is the plane, or two long limit outer rims is arc limit or right-angle side.

4. the blackboard eraser of anti-dust from flying according to claim 1 is characterized in that dry hole and steam vent are circular port, slot or slotted eye.