CN201070944Y - Absorbent blackboard eraser - Google Patents
Absorbent blackboard eraser Download PDFInfo
- Publication number
- CN201070944Y CN201070944Y CNU2007200219298U CN200720021929U CN201070944Y CN 201070944 Y CN201070944 Y CN 201070944Y CN U2007200219298 U CNU2007200219298 U CN U2007200219298U CN 200720021929 U CN200720021929 U CN 200720021929U CN 201070944 Y CN201070944 Y CN 201070944Y
- Authority
- CN
- China
- Prior art keywords
- dust
- utility
- model
- blackboard eraser
- movable wheels
- 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
Links
- 230000002745 absorbent Effects 0.000 title 1
- 239000002250 absorbent Substances 0.000 title 1
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 230000001680 brushing effect Effects 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 210000003254 palate Anatomy 0.000 abstract 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Images
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- Brushes (AREA)
Abstract
The utility model relates to a teaching tool, more particularly an environment-friendly automatic dust-absorption blackboard eraser. The dust-absorption blackboard eraser comprises a brush plate and bristles fixed on the plate. The utility model is characterized in that a plurality of movable wheels are arranged at the circumference of the brush plate, air inlet holes are distributed uniformly on the surface of the brush palate, the inlet holes are connected with a connecting rod and a gear inside a shell, the gear is connected with the movable wheels, and a shock-absorbing device is arranged above the movable wheels. The utility model can eliminate the dust hazards, prevent the dust from spreading in any place, and provide a sanitary and healthy environment for both teachers and students. The utility model can completely eliminate the flying dust phenomena of the blackboard. The production and manufacturing process are not complicated with good practicability and promotion value.
Description
(1) technical field
The utility model relates to a kind of educational aid, particularly a kind of environmental protection, automatic dust-absorption eraser.
(2) background technology
Blackboard is must obligato educational aid in the teaching process, is that the teacher conveys knowledge, the important media of student's learning knowledge.Blackboard eraser is a common teaching equipment.For many years, the teacher erases the board with it always, yet, when erasing the board, always allow the teacher feel a kind of vexed helpless again powder, fly upward everywhere and descend slowly and lightly, it not only impacts hygienic conditions in the classroom, particularly the teacher sucks dust particle in the heart when breathing, and directly has influence on the healthy of teacher.
(3) summary of the invention
The utility model provides a kind of dust absorption blackboard eraser of clean hygiene in order to remedy the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of dust absorption blackboard eraser, comprise hair brushing plate and the bristle that is fixed on above it, its special character is: the edge of described hair brushing plate is equipped with some movable wheels, and the hair brushing plate surface is evenly distributed with air admission hole, air admission hole connects connecting rod and the gear in the housing, and gear is connected with movable wheel.
Dust absorption blackboard eraser of the present utility model is equipped with damping device on the described movable wheel.
The utility model can be eliminated dust harzard, and the chalk powder is descended slowly and lightly no longer everywhere, gives the academic environment of teacher and hygiene and health of classmates.Thoroughly stopped simultaneously the dust phenomenon of blackboard; Produce and manufacture craft and uncomplicated, have suitable practicality and promotional value.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 hair brushing plate, 2 bristles, 3 movable wheels, 4 air admission holes, 5 damping devices.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises hair brushing plate 1 and the bristle 2 that is fixed on above it, the edge of hair brushing plate 1 is equipped with six movable wheels 3, hair brushing plate 1 surface is evenly distributed with 25 air admission holes 4, connecting rod and gear that air admission hole 4 connects in the housing, gear is connected with movable wheel 3, it does not need power supply, only touches the moving work that gets final product with have gentle hands, and horsepower is from the rotation of the movable wheel 3 of working face.On the movable wheel 3 damping device 5 is installed, can be because of power appropriate regulation height, all are all finished in harmony work.
Claims (2)
1. dust absorption blackboard eraser, comprise hair brushing plate (1) and be fixed on bristle (2) above it, it is characterized in that: the edge of described hair brushing plate (1) is equipped with some movable wheels (3), hair brushing plate (1) surface is evenly distributed with air admission hole (4), air admission hole (4) connects connecting rod and the gear in the housing, and gear is connected with movable wheel (3).
2. dust absorption blackboard eraser according to claim 1 is characterized in that: on the described movable wheel (3) damping device (5) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200219298U CN201070944Y (en) | 2007-05-09 | 2007-05-09 | Absorbent blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200219298U CN201070944Y (en) | 2007-05-09 | 2007-05-09 | Absorbent blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201070944Y true CN201070944Y (en) | 2008-06-11 |
Family
ID=39549505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200219298U Expired - Fee Related CN201070944Y (en) | 2007-05-09 | 2007-05-09 | Absorbent blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201070944Y (en) |
-
2007
- 2007-05-09 CN CNU2007200219298U patent/CN201070944Y/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: 20080611 |