CN204774281U - Cylinder blackboard eraser - Google Patents
Cylinder blackboard eraser Download PDFInfo
- Publication number
- CN204774281U CN204774281U CN201520506341.6U CN201520506341U CN204774281U CN 204774281 U CN204774281 U CN 204774281U CN 201520506341 U CN201520506341 U CN 201520506341U CN 204774281 U CN204774281 U CN 204774281U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- blackboard eraser
- shell
- rubber bar
- clean
- 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 technical field of the teaching aid technique and specifically relates to a cylinder blackboard eraser. The blackboard eraser is as being used for cleaning the instrument of letter written with chalk, only plays single clean the function and can not satisfy the demands, and the dust removal is crucial, yet current blackboard eraser has this problem of fine solution. This cylinder blackboard eraser includes shell and cylinder, the cylinder through pivot fixed connection in the shell bottom, the cylinder top is equipped with the rubber bar, the shell top bonding pubescence cortex of rubber bar top, the cylinder surface covers there is soft foam, is equipped with T type boss on the shell. Cylinder blackboard eraser simple structure after the improvement, convenient operation realize to roll and to clean, clean effectual, the static dust absorption, with low costs, effectively reduce the injury of dust.
Description
Technical field
The utility model relates to teaching aid technical field, especially a kind of cylinder blackboard eraser.
Background technology
Chalk, it is the instrument of transmission of culture, also be the drugs of harm health, the engineer of how many souls is because dust pollution again and again, inspiration tracheae and suffer from chronic illness, have left dais too early, blackboard eraser is as being used for the instrument of wiping letter written with chalk, and only playing single wiping function can not satisfy the demands, dedusting is crucial, but existing blackboard eraser does not well address this problem.
Utility model content
In order to overcome the existing deficiency not having dust-absorbing function, the utility model provides a kind of cylinder blackboard eraser.
The utility model solves the technical scheme that its technical problem adopts: a kind of cylinder blackboard eraser, comprise shell and cylinder, cylinder is fixedly connected on outer casing bottom by rotating shaft, is provided with rubber bar above cylinder, and the housing top end above rubber bar is bonded with trichocutis.
According to another embodiment of the present utility model, comprise outer surface of cylinder further and be covered with flexible foam.
According to another embodiment of the present utility model, comprise shell further and be provided with T-shaped boss.
The beneficial effects of the utility model are, structure is simple, and easy to operate, realize rolling wiping, wiping effect is good, electrostatic precipitation, and cost is low, effectively reduce the injury of dust.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is front view of the present utility model.
Fig. 2 is side view of the present utility model.
1. shells, 2. cylinder, 3. rotating shaft, 4. rubber bar, 5. trichocutis, 6. flexible foam in figure, 7.T type boss.
Detailed description of the invention
As shown in Figure 1, 2, a kind of cylinder blackboard eraser, comprise shell 1 and cylinder 2, cylinder 2 is fixedly connected on bottom shell 1 by rotating shaft 3, rubber bar 4 is provided with above cylinder 2, shell 1 top above rubber bar 4 is bonded with trichocutis 5, and cylinder 2 outer surface is covered with flexible foam 6, and shell 1 is provided with T-shaped boss 7.
During use, T-shaped boss 7 is easily affectedly bashful and exerts a force, cylinder 2 rolls blackboard wiping, flexible foam 6 pick-up performance is good, anticorrosive, durable, rubber bar 4 rolls along with cylinder 2, produce electrostatic in the process of contact trichocutis 5, the dust on cylinder 2 is attracted, prevents dust in blackboard eraser wiping process from wafing everywhere.
Cylinder eraser structure after improvement is simple, and easy to operate, realize rolling wiping, wiping effect is good, electrostatic precipitation, and cost is low, effectively reduces the injury of dust.
Claims (3)
1. a cylinder blackboard eraser, comprise shell (1) and cylinder (2), it is characterized in that, described cylinder (2) is fixedly connected on shell (1) bottom by rotating shaft (3), cylinder (2) top is provided with rubber bar (4), and shell (1) top of rubber bar (4) top is bonded with trichocutis (5).
2. cylinder blackboard eraser according to claim 1, is characterized in that, described cylinder (2) outer surface is covered with flexible foam (6).
3. cylinder blackboard eraser according to claim 1, is characterized in that, described shell (1) is provided with T-shaped boss (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506341.6U CN204774281U (en) | 2015-07-14 | 2015-07-14 | Cylinder blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520506341.6U CN204774281U (en) | 2015-07-14 | 2015-07-14 | Cylinder blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204774281U true CN204774281U (en) | 2015-11-18 |
Family
ID=54514398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520506341.6U Expired - Fee Related CN204774281U (en) | 2015-07-14 | 2015-07-14 | Cylinder blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204774281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140517A (en) * | 2019-04-09 | 2019-08-20 | 嘉兴市爵拓科技有限公司 | Rice harvesting device |
-
2015
- 2015-07-14 CN CN201520506341.6U patent/CN204774281U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140517A (en) * | 2019-04-09 | 2019-08-20 | 嘉兴市爵拓科技有限公司 | Rice harvesting device |
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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: 20151118 Termination date: 20160714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |