CN215284151U - Dustless blackboard eraser - Google Patents
Dustless blackboard eraser Download PDFInfo
- Publication number
- CN215284151U CN215284151U CN202022929837.8U CN202022929837U CN215284151U CN 215284151 U CN215284151 U CN 215284151U CN 202022929837 U CN202022929837 U CN 202022929837U CN 215284151 U CN215284151 U CN 215284151U
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- airflow channel
- chalk dust
- box
- 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
- 239000000428 dust Substances 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model provides a dustless blackboard eraser can absorb the chalk dust that the blackboard in-process produced. When the blackboard eraser is used, chalk dust brushed by the brush is sucked into a box in the blackboard eraser by a dust suction port on the base; the box is internally provided with four partition plates, the space between the lower partition plate and the upper partition plate is smaller, so that the gas flowing space is changed from small to large, the gas flow speed is reduced, and the chalk dust is sunk onto the partition plates in the box under the action of gravity; the chalk dust in the box can be poured out by opening the side cover; the common rechargeable battery on the market is adopted to provide power for the blackboard eraser, the interchangeability is good, and the structure is compact.
Description
Technical Field
The utility model relates to a dustless blackboard eraser, specific dustless blackboard eraser that can absorb the chalk dust that produces of blackboard erasing in-process that says so.
Background
At present, most schools mainly use chalk in the teaching process of teachers, so that a large amount of chalk dust is generated in the blackboard erasing process, and the physical health of teachers and front-row students is harmed. Currently, no device for solving the problems is available on the market.
Disclosure of Invention
An object of the utility model is to solve above-mentioned problem, provide a dustless blackboard eraser, have simple structure, low in manufacturing cost, processing convenience, small, light in weight, convenient to use's apparent characteristics.
The utility model discloses the technical scheme who adopts lies in: there is the dust absorption mouth around the base, below is the brush, be the airflow channel that the baffle is constituteed above the base, airflow channel's the right is the side cap, the higher authority is the impeller pump, there is the ash absorption sponge between the air inlet of impeller pump and the airflow channel, the higher authority of impeller pump is little band pulley, the left side is the transmission shaft, there are spur gear and big band pulley on the transmission shaft, big band pulley passes through the belt with little band pulley and links to each other, there are motor and USB rechargeable battery on the left side of transmission shaft, there is crown gear on the axle of motor, there is the switch motor back.
In the above technical scheme: the airflow channel is an S-shaped channel formed by four clapboards and is arranged for prolonging the airflow channel and enabling chalk dust to settle on the clapboards, and the dust suction ports are arranged on the periphery of the base and are arranged for completely sucking the chalk dust.
A small vane pump is used for generating dust collection airflow, and when the blackboard eraser is used, chalk dust brushed by the brush is sucked into a box in the blackboard eraser through a dust collection port in the base. Four clapboards are arranged in the box, the space between the lower clapboard and the upper clapboard is small, and the space between the upper clapboard and the lower clapboard is large, so that the gas flowing space is increased from small to large. The air flow slows and the chalk dust falls down under the influence of gravity onto the partition in the box. The chalk dust in the box can be poured out by opening the side cover. The common rechargeable battery on the market is adopted to provide power for the blackboard eraser, the interchangeability is good, the size is small, and the structure is compact. The brush can suck the chalk dust into the box in time and prevent the chalk dust from being accumulated on the brush.
Compared with the prior art, the utility model, following advantage effect has: the blackboard eraser has the advantages of simple part processing and manufacturing, low manufacturing cost and good interchangeability, and the brush can absorb chalk dust in time and prevent the chalk dust from being accumulated on the surface of the blackboard eraser. Small volume, light weight and convenient use.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the present invention.
In the figure: 1. a brush; 2. A dust suction port; 3. a partition plate; 4. A side cover; 5. ash-absorbing sponge; 6. a vane pump; 7. a small belt pulley; 8. a belt; 9. a large belt pulley; 10. a drive shaft; 11. a spur gear; 12. a crown gear; 13. a motor; 14. a USB rechargeable battery; 15. and (4) switching.
Detailed Description
FIG. 1 is a schematic representation of FIG. 2: the dust collection device comprises a base, a dust collection port 2 is arranged on the periphery of the base, a brush 1 is arranged below the base, an airflow channel formed by partition plates 3 is arranged above the base, a side cover 4 is arranged on the right side of the airflow channel, a vane pump 6 is arranged above the airflow channel, dust collection sponge 5 is arranged between an air inlet of the vane pump 6 and the airflow channel, a small belt wheel 7 is arranged above the vane pump 6, a transmission shaft 10 is arranged on the left side of the vane pump 6, a straight gear 11 and a large belt wheel 9 are arranged on the transmission shaft, the large belt wheel 9 is connected with the small belt wheel 7 through a belt 8, a motor 13 and a USB rechargeable battery 14 are arranged on the left side of the transmission shaft 10, a crown gear 12 is arranged on the shaft of the motor, and a switch 15 is arranged behind the motor 13. The airflow channel is an S-shaped channel formed by four clapboards 3 and is arranged for prolonging the airflow channel and enabling chalk dust to settle on the clapboards, and the dust suction ports 2 are arranged on the periphery of the base and are arranged for completely sucking the chalk dust.
The working principle of the utility model is as follows: after a power switch 15 is turned on, a motor 13 is meshed with a straight gear 11 through a crown gear 12 to transmit power to a large belt wheel 9, the large belt wheel 9 transmits the power to a small belt wheel 7 through a belt 8, the small belt wheel 7 drives a main shaft of a vane pump 6 to rotate, the vane pump pumps air in an air flow passage to generate air flow in the air flow passage, and a dust suction port 2 connected with the air flow passage sucks air with chalk dust; after the chalk dust enters the airflow channel, the airflow flows into a wide space from a narrow space due to the fact that the airflow channel above is larger than the airflow channel below, the flow speed is reduced, and the chalk dust is settled on the partition plate 3 under the action of gravity; a piece of dust-absorbing sponge 5 is arranged at the outlet of the airflow channel and can completely absorb the residual chalk dust in the airflow; after the blackboard eraser is used, the side cover 4 is opened, and then chalk dust collected in the box can be poured into the garbage can; thereby realizing dustless blackboard erasing process.
Claims (2)
1. A dust-free blackboard eraser is characterized in that: there are dust absorption mouth (2) around the base, below be brush (1), be the airflow channel that baffle (3) are constituteed above the base, airflow channel's the right is side cap (4), it is impeller pump (6) to go up, there is ash absorption sponge (5) between the air inlet of impeller pump (6) and the airflow channel, the higher authority of impeller pump (6) is little band pulley (7), the left side is transmission shaft (10), there are spur gear (11) and big band pulley (9) on the transmission shaft, big band pulley (9) link to each other through belt (8) with little band pulley (7), there are motor (13) and USB rechargeable battery (14) on the left side of transmission shaft (10), the epaxial crown gear (12) that has of motor, there is switch (15) behind motor (13).
2. The dust-free blackboard eraser according to claim 1, wherein: the airflow channel is an S-shaped channel formed by four clapboards (3) and is arranged for prolonging the airflow channel and enabling chalk dust to settle on the clapboards, and the dust suction ports (2) are arranged on the periphery of the base and are arranged for completely sucking the chalk dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022929837.8U CN215284151U (en) | 2020-12-09 | 2020-12-09 | Dustless blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022929837.8U CN215284151U (en) | 2020-12-09 | 2020-12-09 | Dustless blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215284151U true CN215284151U (en) | 2021-12-24 |
Family
ID=79513198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022929837.8U Expired - Fee Related CN215284151U (en) | 2020-12-09 | 2020-12-09 | Dustless blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215284151U (en) |
-
2020
- 2020-12-09 CN CN202022929837.8U patent/CN215284151U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |