CN200964003Y - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN200964003Y CN200964003Y CN 200620085855 CN200620085855U CN200964003Y CN 200964003 Y CN200964003 Y CN 200964003Y CN 200620085855 CN200620085855 CN 200620085855 CN 200620085855 U CN200620085855 U CN 200620085855U CN 200964003 Y CN200964003 Y CN 200964003Y
- Authority
- CN
- China
- Prior art keywords
- piston
- eraser
- blackboard eraser
- shell
- sponge
- 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
Disclosed is a chalkboard eraser, which relates to the technical field for teaching appliance and comprises a shell and a sponge eraser. The sponge eraser is fixedly arranged below the shell; the shell has a cavity inside; a water leakage hole is provided on the left end of the connecting side between the cavity and the sponge eraser; a piston is arranged inside the sealed shell; a circular hole is provided in the center of the piston; the circular hole is communicated with a piston rod; an opening is provided on the right end of the piston rod; a piston cap is arranged on the opening. When in operation, the piston cap will be opened, and water will be affused to the eraser through the piston rod; as the sponge eraser contains water inside, the chalk dust will not rise when cleaning the chalkboard. If the eraser needs cleaning, the piston will be pushed to move towards the left end, therefore, the water in the shell will clean out the chalk dust on the sponge. The utility model has the advantages of rational design, simple structure, easy production, convenient operation and hook attachment.
Description
One, technical field
The utility model relates to a kind of blackboard eraser, belongs to the realia technical field.
Two, background technology
Existing blackboard eraser exists serious dust pollution question, and the grievous injury user's is healthy.
Three, summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of blackboard eraser reasonable in design, simple in structure, easy to manufacture, easy to use.
A kind of blackboard eraser is made up of blackboard eraser housing and sponge brush, and sponge brush is fixedly mounted on below the blackboard eraser housing; Be a cavity in the blackboard eraser housing, this cavity is connected one side with sponge brush left end is provided with leaking hole, is provided with a piston in the seal casinghousing.
Be provided with a circular hole in the middle of the described piston, this circular hole is communicated with piston rod, and the piston rod right-hand member is provided with an opening, and opening is provided with piston cap.
During use, open piston cap,,, just can avoid flying upward of when erasing the board chalk dust because sponge brush contains moisture by piston rod water filling in blackboard eraser.When needing to clean blackboard eraser, promote piston end motion left, the water in the blackboard eraser housing just can wash the dust on the sponge.
The utlity model has characteristics reasonable in design, simple in structure, easy to manufacture, easy to use.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model.
Wherein, 1, the blackboard eraser housing, 2, sponge brush, 3, leaking hole, 4, piston, 5, piston rod, 6, piston cap.
Five, specific implementation method
Embodiment: structure of the present utility model is made up of blackboard eraser housing 1 and sponge brush 2 as shown in drawings, and sponge brush 2 is fixedly mounted on below the blackboard eraser housing 1; Be a cavity in the blackboard eraser housing 1, this cavity is connected one side with sponge brush 2 left end is provided with leaking hole 3, is provided with a piston 4 in the housing; Be provided with a circular hole in the middle of the piston 4, this circular hole is communicated with piston rod 5, and piston rod 5 right-hand members are provided with an opening, and opening is provided with piston cap 6.
Claims (2)
1, a kind of blackboard eraser is characterized in that, is made up of blackboard eraser housing and sponge brush, and sponge brush is fixedly mounted on below the blackboard eraser housing; Be a cavity in the blackboard eraser housing, this cavity is connected one side with sponge brush left end is provided with leaking hole, is provided with a piston in the seal casinghousing.
2, blackboard eraser as claimed in claim 1 is characterized in that, is provided with a circular hole in the middle of the described piston, and this circular hole is communicated with piston rod, and the piston rod right-hand member is provided with an opening, and opening is provided with piston cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085855 CN200964003Y (en) | 2006-06-21 | 2006-06-21 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620085855 CN200964003Y (en) | 2006-06-21 | 2006-06-21 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964003Y true CN200964003Y (en) | 2007-10-24 |
Family
ID=38868013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620085855 Expired - Fee Related CN200964003Y (en) | 2006-06-21 | 2006-06-21 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200964003Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688387A (en) * | 2018-07-18 | 2018-10-23 | 张志华 | A kind of blackboard eraser of dust-proof anti-accumulation |
-
2006
- 2006-06-21 CN CN 200620085855 patent/CN200964003Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688387A (en) * | 2018-07-18 | 2018-10-23 | 张志华 | A kind of blackboard eraser of dust-proof anti-accumulation |
| CN108688387B (en) * | 2018-07-18 | 2019-10-11 | 周午贤 | A kind of blackboard eraser of dust-proof anti-accumulation |
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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 |