CN206012151U - A kind of dust-free blackboard eraser - Google Patents
A kind of dust-free blackboard eraser Download PDFInfo
- Publication number
- CN206012151U CN206012151U CN201620686226.6U CN201620686226U CN206012151U CN 206012151 U CN206012151 U CN 206012151U CN 201620686226 U CN201620686226 U CN 201620686226U CN 206012151 U CN206012151 U CN 206012151U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- collecting box
- air bag
- base
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of dust-free blackboard eraser, including blackboard eraser body, hairbrush body and base, hairbrush body is fixed on the front end of blackboard eraser body, and base is arranged on the lower end of blackboard eraser body, is provided with dust-collecting box and dust chamber in base；The periphery of hairbrush body is provided with the enclosing that a circle is fixed in blackboard eraser body, and blackboard eraser body is provided with multiple suction ports between hairbrush body and enclosing；Air bag and the push pedal for connecting therewith is provided with the cavity of blackboard eraser body rear end, push pedal is slidably connected with blackboard eraser body, push pedal is provided with depression bar, and to reach blackboard eraser external；Suction port is connected with air bag by one-way air inlet flexible pipe, and the bottom of air bag is provided with one-way exhaust mouth and is connected with dust-collecting box, and the upper surface of dust-collecting box is provided with ventilation mouth and is connected with the air inlet of dust chamber；Base housing is provided with the steam vent corresponding with dust chamber air vent.This product simple structure, can effectively remove the dust during blackboard-cleaning, with very strong practicality.
Description
Technical field
This utility model belongs to a kind of realia, and in particular to a kind of blackboard eraser.
Background technology
Using chalk, on blackboard, the teaching of handwriting is most widely used and most traditional teaching method, but it is giving people
Clergy and student there is also very big defect while bringing convenience, especially prominent problem is to wipe letter written with chalk
When, the dust of generation can be flown upward everywhere, and these dust diffuse in atmosphere, have a strong impact on the healthy of teachers and students in classroom.
Occur in that some can collect the blackboard eraser of chalk dust, the such as blackboard eraser with cleaner unit currently on the market, such
Blackboard eraser comes with some shortcomings, and has certain noise during work, and structure is more complicated, high cost, and maintenance is loaded down with trivial details, so as to limit
Which is applied.
Utility model content
The purpose of this utility model is to provide a kind of blackboard eraser for being prevented effectively from dust from flying during blackboard-cleaning, its
Simple structure is easy to operate, and manufacturing cost and use cost is low, with very strong practicality.
The technical solution adopted in the utility model is that a kind of dust-free blackboard eraser, including blackboard eraser body, hairbrush body and bottom
Seat, hairbrush body are fixed on the front end of blackboard eraser body, and base is arranged on the lower end of blackboard eraser body, is provided with dust-collecting box and dust chamber in base；
The periphery of hairbrush body is provided with the enclosing that a circle is fixed in blackboard eraser body, and blackboard eraser body is provided between hairbrush body and enclosing
Multiple suction ports；Air bag and the push pedal for connecting therewith is provided with the cavity of blackboard eraser body rear end, and push pedal is slidably connected with blackboard eraser body, is pushed away
Plate is provided with depression bar, and to reach blackboard eraser external；Suction port is connected with air bag by one-way air inlet flexible pipe, and the bottom of air bag is provided with list
It is connected to air vent with the dust-collecting box in base, the upper surface of dust-collecting box is provided with ventilation mouth and is connected with the air inlet of dust chamber；
Base housing is provided with the steam vent corresponding with dust chamber air vent.
In order to further avoid producing airborne dust in dust-collecting box, the inside of dust-collecting box is provided with dust-break drain at the air inlet mouth of pipe
Device, described dust-break drainage system are made up of taper type dust-blocking cover and taper drain body, and taper type dust-blocking cover is solid with air inlet pipe
Fixed, taper drain body is located at below taper type dust-blocking cover, and both are spaced a distance and are fixedly connected.Enter in dust-collecting box
Gas is blown on taper drain body, and reflected between taper drain body and taper type dust-blocking cover, it is to avoid in dust-collecting box
Interior generation airborne dust.
It is provided with around this utility model blackboard eraser hairbrush body and encloses shelves, can effectively prevents the dust four produced in wiping process
Place flies upward, and hairbrush body and encloses, reach the external depression bar of blackboard eraser to blackboard eraser body press when, push pedal is along plate
Rub body sliding compression air bag, makes the gas in air bag discharge into dust-collecting box, and dust is trapped in dust-collecting box, and gas is through dust chamber
It is discharged into after filtration in extraneous air, now in air bag, forms negative pressure；After depression bar is released pressing, dust passes through suction port quilt
In suction air bag, during inside air bag negative pressure is gradually reduced, the depression bar in push pedal is moved in vitro to blackboard eraser, in suction air bag
Dust because being gravitationally deposited at air bag bottom, again by depression bar to blackboard eraser body press when, the dust and gas in air bag is discharged into
In dust-collecting box, form negative pressure in air bag again and continue dust suction work, simple to operate, but can effectively prevent blackboard in wiping process
The dust of generation.
Description of the drawings
Fig. 1 is this utility model structural representation.
Specific embodiment
This utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.As shown in figure 1, a kind of new
Dust-free black board eraser, including blackboard eraser body 3, hairbrush body 1 and base 7, hairbrush body 1 is fixed on the front end of blackboard eraser body 3, and base 7 is arranged on
The lower end of blackboard eraser body 3；
The enclosing 2 being fixed in blackboard eraser body 3 that keeps at a certain distance away therewith is provided with around hairbrush body 1, and dust is limited in
Hairbrush body 1 and enclose between shelves 2 space in, the dust produced during can effectively preventing blackboard-cleaning is flown upward everywhere；
Blackboard eraser body 3 is provided with multiple suction ports 4 between hairbrush body 1 and enclosing 2；
Air bag 5 and push pedal 6 is provided with the cavity of 3 rear end of blackboard eraser body, and air bag 5 and push pedal 6 connect, and push pedal 6 is slided with blackboard eraser body 3
Dynamic connection, can pass through to arrange pulley in push pedal 6, and blackboard eraser body 3 is provided with adaptable slide rail to realize；
Push pedal 6 is provided with depression bar 61 and reaches outside blackboard eraser body 3；Suction port 4 is connected with air bag 5 by one-way air inlet flexible pipe,
Dust-collecting box 8 and dust chamber 9 are provided with base 7；The bottom of air bag 5 is provided with one-way exhaust mouth and is connected with the dust-collecting box 8 in base 7,
The upper surface of dust-collecting box 8 is provided with ventilation mouth and is connected with the air inlet of dust chamber 9；Base housing is provided with and dust chamber's air vent
Corresponding steam vent.
For the ease of understanding dust situation at any time, the housing of base 7 is provided with the housing of transparent window or base 7 using thoroughly
Bright material is made.
The operation principle of this utility model blackboard eraser is as follows, and the depression bar 61 reached outside blackboard eraser body 3 is pressed to blackboard eraser body 3
When, push pedal 6 makes the gas in air bag 5 discharge into dust bag 71 along 3 sliding compression air bag 5 of blackboard eraser body, is formed negative in air bag 5
Pressure, after depression bar 61 is released pressing, dust is inhaled in air bag 5 by suction port 4, and 5 internal negative pressure of air bag is gradually reduced
During, the depression bar 61 in push pedal is moved to outside blackboard eraser body 3, sucks the dust in air bag 5 because being gravitationally deposited at 5 bottom of air bag,
Again depression bar 61 is pressed to blackboard eraser body 3, in dust-collecting box 8, dust collection is in dust-collecting box for the gas and dust emission in air bag 5
In 8, gas is discharged in extraneous air after the filtration of dust chamber 9, forms negative pressure again and continue dust suction work in air bag 5, can be with
The dust for effectively preventing blackboard from producing in wiping process.
In order to further avoid airborne dust being produced in dust-collecting box 8, be provided with dust-break drain at the air inlet mouth of pipe in dust-collecting box
Device, described dust-break drainage system include taper type dust-blocking cover and taper drain body composition, taper type dust-blocking cover and air inlet pipe
Fixed, taper drain body is located at below taper type dust-blocking cover, and the spacing that both keep certain is fixedly connected.Enter in dust-collecting box
Gas blow on taper drain body, and reflected between taper drain body and taper type dust-blocking cover, be effectively prevent
Airborne dust is produced in dust-collecting box 8, to the dustiness in the gas of dust chamber 9, gas is further through dust chamber 9 for the row of effectively reducing
After filtration again in externally discharged air, the injury of dust that blackboard produced in wiping process to human body is effectively prevent.
Claims (2)
1. a kind of dust-free blackboard eraser, including blackboard eraser body, hairbrush body and base, hairbrush body is fixed on the front end of blackboard eraser body, bottom
Seat is arranged on the lower end of blackboard eraser body, is provided with dust-collecting box and dust chamber in base；The periphery of hairbrush body is provided with a circle and is fixed on blackboard eraser
Enclosing on body, blackboard eraser body are provided with multiple suction ports between hairbrush body and enclosing；Air bag is provided with the cavity of blackboard eraser body rear end
The push pedal for connecting therewith, push pedal are slidably connected with blackboard eraser body, and push pedal is provided with depression bar, and to reach blackboard eraser external；Suction port leads to
Cross one-way air inlet flexible pipe to be connected with air bag, the bottom of air bag is provided with one-way exhaust mouth and is connected with the dust-collecting box in base, dust-collecting box
Upper surface be provided with ventilation mouth and be connected with the air inlet of dust chamber；Base housing is provided with corresponding with dust chamber air vent
Steam vent.
2. a kind of dust-free blackboard eraser according to claim 1, is characterized in that：The inside of the dust-collecting box is in air inlet pipe
Dust-break drainage system is provided with mouthful；Described dust-break drainage system is made up of taper type dust-blocking cover and taper drain body, taper type
Dust-blocking cover is fixed with air inlet pipe, and taper drain body is located at below taper type dust-blocking cover, and both are spaced a distance fixed company
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686226.6U CN206012151U (en) | 2016-07-04 | 2016-07-04 | A kind of dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686226.6U CN206012151U (en) | 2016-07-04 | 2016-07-04 | A kind of dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206012151U true CN206012151U (en) | 2017-03-15 |
Family
ID=58244015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686226.6U Expired - Fee Related CN206012151U (en) | 2016-07-04 | 2016-07-04 | A kind of dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206012151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216476A (en) * | 2020-01-21 | 2020-06-02 | 吴小花 | Blackboard eraser with self-dust-collection cleaning function |
-
2016
- 2016-07-04 CN CN201620686226.6U patent/CN206012151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216476A (en) * | 2020-01-21 | 2020-06-02 | 吴小花 | Blackboard eraser with self-dust-collection cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20190704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |