CN202213398U - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN202213398U CN202213398U CN201120331540XU CN201120331540U CN202213398U CN 202213398 U CN202213398 U CN 202213398U CN 201120331540X U CN201120331540X U CN 201120331540XU CN 201120331540 U CN201120331540 U CN 201120331540U CN 202213398 U CN202213398 U CN 202213398U
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- blackboard eraser
- water spray
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Cleaning By Liquid Or Steam (AREA)
Abstract
A dustproof blackboard eraser belongs to teaching aids, and mainly solves the problems that dust flies when the traditional blackboard erase is used, and the health of teachers and students is harmed. The structure of the dustproof blackboard eraser comprises a water absorbing sponge, a water tank, bristle, a water spray button and a water spray pipe; the water absorbing sponge and the bristle are respectively arranged on the upper side surface and the lower side surface of the water tank; the water spray pipe is arranged at the side edge of the upper part of the water tank, one end of the water spray pipe is communicated with the water absorbing sponge, the other end of the water spray pipe is communicated with the interior of the water tank, and one side wall of the water tank is provided with the water spray button communicated with the inner cavity of the water tank and the water spray pipe. The dustproof blackboard eraser can reduce and avoid dust produced in use, and can effectively prevent harm to a human body and pollution to the environment caused by flying of dust.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically is a kind of dust-proof blackboard eraser.
Background technology
Class hour on to the student, teacher can erase the board every now and then, following class hour; The student on duty classmate also will erase the board, chalk powder will drop on one after another teacher and classmates on hand and on one's body, the dust that flies upward also can be inhaled in the lung; Because the specific physical performance of chalk; This can cause very big injury to health, and like pneumoconiosis and various acute and chronic breathing problem that dust causes, dust is to the injury of eyes, ear, skin; Can also bring out other disease, to the influence of air quality and to influence of myopia or the like.If a kind of blackboard eraser that prevents dust from flying can be arranged, will be useful especially to teacher and classmates' physical and mental health.
The utility model content
The purpose of the utility model is to provide a kind of dust-proof blackboard eraser, and the dust that this blackboard eraser causes in the time of can reducing and avoid the use of effectively prevents harm that dust from flying causes human body and to the pollution of environment.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of dust-proof blackboard eraser, and its structure is made up of water-absorbing sponge, water tank, bristle, spraying button and sparge pipe, and water-absorbing sponge and bristle are separately positioned on the upper and lower two sides of water tank; Be provided with sparge pipe at the water tank upper side, described sparge pipe one end communicates with absorbent sponge, and the other end communicates with water tank inside, is provided with the spraying button that is communicated with water tank cavity and sparge pipe at water tank one sidewall.
The beneficial effect of the utility model is: before the use; Take off spraying button, in the button installing hole, inject proper amount of clear water, spraying button correctly is installed makes it water-tight to water tank; Push button then; Water spray mouth of pipe place can spray water and make water-absorbing sponge be in moisture state, holds the water tank both sides, water-absorbing sponge is aimed at the blackboard of treating wiping; Dust is adsorbed on the sponge and avoided dust from flying, the phenomenon that descends slowly and lightly, effectively reduce and the able-bodied technical problem of harm Faculty and Students when having avoided erasing the board; Bristle one side can be used as ordinary blackboard eraser and uses; Have characteristics easy to use, environmental protection and energy saving.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1 water-absorbing sponge, 2 water tanks, 3 bristles, 4 spraying button, 5 sparge pipes.
The specific embodiment
As shown in Figure 1.A kind of dust-proof blackboard eraser, its structure is made up of water-absorbing sponge 1, water tank 2, bristle 3, spraying button 4 and sparge pipe 5, and water-absorbing sponge 1 and bristle 3 are separately positioned on the upper and lower two sides of water tank 2; Be provided with sparge pipe 5 in water tank 2 upper side, described sparge pipe 5 one ends communicate with absorbent sponge 1, and the other end communicates with water tank 2 inside, are provided with the spraying button 4 that is communicated with water tank 2 inner chambers and sparge pipe 5 at water tank 2 one sidewalls.
Before the use, take off spraying button 4, in the button installing hole, inject proper amount of clear water to water tank 2; The correct spraying button 4 of installing makes it water-tight, pushes button 4 then, and 5 mouthfuls of places of sparge pipe can intermittently spray water and make water-absorbing sponge 1 be in moisture state; Hold water tank 2 both sides; Water-absorbing sponge 1 is aimed at the blackboard of treating wiping, dust is adsorbed on the sponge and avoided dust from flying, the phenomenon that descends slowly and lightly, effectively reduce and the able-bodied technical problem of harm Faculty and Students when having avoided erasing the board; Bristle 3 one sides can be used as ordinary blackboard eraser and use; The utlity model has characteristics simple to operate, easy to use, environmental protection and energy saving.
Claims (1)
1. a dust-proof blackboard eraser is characterized in that, is made up of water-absorbing sponge, water tank, bristle, spraying button and sparge pipe, and water-absorbing sponge and bristle are separately positioned on the upper and lower two sides of water tank; Be provided with sparge pipe at the water tank upper side, described sparge pipe one end communicates with absorbent sponge, and the other end communicates with water tank inside, is provided with the spraying button that is communicated with water tank cavity and sparge pipe at water tank one sidewall.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120331540XU CN202213398U (en) | 2011-09-06 | 2011-09-06 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120331540XU CN202213398U (en) | 2011-09-06 | 2011-09-06 | Dustproof blackboard eraser |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202213398U true CN202213398U (en) | 2012-05-09 |
Family
ID=46012667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201120331540XU Expired - Fee Related CN202213398U (en) | 2011-09-06 | 2011-09-06 | Dustproof blackboard eraser |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202213398U (en) |
-
2011
- 2011-09-06 CN CN201120331540XU patent/CN202213398U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120906 |