CN2608305Y - Dust-removing blackboard easer device - Google Patents
Dust-removing blackboard easer device Download PDFInfo
- Publication number
- CN2608305Y CN2608305Y CN 03211118 CN03211118U CN2608305Y CN 2608305 Y CN2608305 Y CN 2608305Y CN 03211118 CN03211118 CN 03211118 CN 03211118 U CN03211118 U CN 03211118U CN 2608305 Y CN2608305 Y CN 2608305Y
- Authority
- CN
- China
- Prior art keywords
- filter bag
- cloth filter
- air inlet
- dust
- utility
- 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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Abstract
The utility model belongs to the field of dust removal, which specifically refers to a dust removing blackboard eraser device used for eliminating chalk powder from the blackboard eraser. The utility model is characterized in that the sponge filter bag 11 smaller than the cloth filter bag 10 is inside the cloth filter bag 11. The cloth filter bag 11 is inside of the powder inlet opening 21. The inlet opening 20 and the convex plate 19 are positioned on the upper cover 6. The electric engine 4 is at the lower part of the powder inlet opening 21. The cloth filter bag 10 is covered by the rubber cushion 23. The utility model has advantages of being simple structured, low cost and convenient for operation, which decreases the chalk powder scattered into the air to a great extent.
Description
Technical field: the utility model belongs to the dedusting field, is specially a kind of chalk dust-removing blackboard eraser device not on the blackboard eraser of removing.
Background technology: also all use chalk to write in China overwhelming majority school instructions at present, when erasing the board, chalk powder dances in the air in air, and teacher, students be in various degree suction chalk powder all, goes down so for a long time, and respiratory tract, lung all can be ill.Though existing at present blackboard and the pen that does not use chalk, because reason economically, use amount seldom can not be popularized.
Summary of the invention: the purpose of this utility model is to provide a kind of need not prize the blackboard eraser of cracking down evil force, a kind of dust-removing blackboard eraser device that the chalk powder in the surrounding air is reduced significantly.The purpose of this utility model is achieved in that it comprises air outlet 1, housing 2, shock absorber 3, motor 4, king-rod 5, upper boom 6, blade 7, rubber ring 8, magnet 9, cloth filter bag 10, sponge filter bag 11, chalk chamber 12, power interface 13, carries hand 14, electric machine support 16, motor coil 17, supporting station 18, earthen platform 19, air inlet 20, powder air inlet 21, air outlet 22, rubber mount 23.Sponge filter bag 11 is less than cloth filter bag 10 and in cloth filter bag 11, and cloth filter bag 11 has air inlet 20, boss 19 on loam cake 6 in powder air inlet 21, and motor 4 is below powder air inlet 21.Rubber mount 23 is arranged on cloth filter bag 10.
Advantage of the present utility model is: simple in structure, with low cost, easy for operation, can make chalk not in air amplitude reduce very big.
Description of drawings: Fig. 1 is the utility model structural principle A-A generalized section.
Fig. 2 is the utility model structural principle schematic top plan view.
Fig. 3 is the utility model principle schematic side view.
Fig. 4 is the utility model structural principle schematic diagram under the loam cake open mode.
Fig. 5 is the utility model middle cover structural principle schematic diagram.The 15-power switch.
The specific embodiment: sponge filter bag 11 is less than cloth filter bag 10 and in cloth filter bag 11, and cloth filter bag 11 has air inlet 20, boss 19 on loam cake 6 in powder air inlet 21, and motor 4 is below powder air inlet 21.Rubber mount 23 is arranged on cloth filter bag 10.Loam cake is to cover in being buckled in, and boss has played a skeleton function, and it is that the middle part is not empty that loam cake is covered in being buckled in.After the utility model power switch is connected, machine operation drives blade rotation and produces attraction, when blackboard eraser is moved back and forth on boss, air inlet, dust is under the effect of gravity and suction, be inhaled into the sponge filter bag, thinner dust then enter in the cloth filter bag at last by the sponge filter bag, and the wind-force of generation is after the air outlet discharge.Carrying hand can carry away very easily.Magnet is corresponding with the sheet metal in the loam cake, and when covering in loam cake is buckled in, magnet and sheet metal are pulled together.
Claims (2)
1, a kind of dust-removing blackboard eraser device, it comprises air outlet 1, housing 2, shock absorber 3, motor 4, king-rod 5, upper boom 6, blade 7, rubber ring 8, magnet 9, cloth filter bag 10, sponge filter bag 11, chalk chamber 12, power interface 13, carry hand 14, electric machine support 16, motor coil 17, supporting station 18, earthen platform 19, air inlet 20, powder air inlet 21, air outlet 22, rubber mount 23, it is characterized in that: sponge filter bag 11 is less than cloth filter bag 10 and in cloth filter bag 11, cloth filter bag 11 is in powder air inlet 21, air inlet 20 is arranged on loam cake 6, boss 19, motor 4 is below powder air inlet 21.
2, a kind of dust-removing blackboard eraser device according to claim 1 is characterized in that: rubber mount 23 is arranged on cloth filter bag 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211118 CN2608305Y (en) | 2003-01-22 | 2003-01-22 | Dust-removing blackboard easer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211118 CN2608305Y (en) | 2003-01-22 | 2003-01-22 | Dust-removing blackboard easer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2608305Y true CN2608305Y (en) | 2004-03-31 |
Family
ID=34158826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211118 Expired - Fee Related CN2608305Y (en) | 2003-01-22 | 2003-01-22 | Dust-removing blackboard easer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2608305Y (en) |
-
2003
- 2003-01-22 CN CN 03211118 patent/CN2608305Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |