CN200939779Y - Telescopic spraying eraser - Google Patents
Telescopic spraying eraser Download PDFInfo
- Publication number
- CN200939779Y CN200939779Y CN 200620092324 CN200620092324U CN200939779Y CN 200939779 Y CN200939779 Y CN 200939779Y CN 200620092324 CN200620092324 CN 200620092324 CN 200620092324 U CN200620092324 U CN 200620092324U CN 200939779 Y CN200939779 Y CN 200939779Y
- Authority
- CN
- China
- Prior art keywords
- water
- cleaning cottons
- connecting plate
- bearing rod
- 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
Links
- 238000005507 spraying Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920000742 Cotton Polymers 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 241000219146 Gossypium Species 0.000 abstract 6
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
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- Cleaning In General (AREA)
Abstract
The utility model relates to an extensible water-jetting blackboard eraser comprising a connecting board, cleaning cottons and a bearing rod. Pluralities of water holes are positioned on the connecting board from back surface to the front surface. The cleaning cottons are pasted and fixed on the connecting board, covering the water holes. The bearing rod is divided into a plurality of sections connected with screws. Two side of a water pipe is communicated with the cleaning cottons and high pressure water tank respectively. When using, the user presses the water with the high pressure water tank, jets the water on the surface of the cleaning cottons to wet the cleaning cottons. The wet cleaning cottons erase the blackboard. The utility model not only erases the chalk writing, avoids the flying dust pollution, but also adjusts the length of the bearing rod to suit for the height of the user according to the connecting screw characteristics. The utility model has the advantages of simple structure, convenient use, flexible operation and wide application, which not only adjusts the length of the bearing rod to suit for the height of the user, but also keeps the environmental sanitation.
Description
Technical field the utility model relates to a kind of teaching aid, especially a kind of blackboard eraser with flexible and the two kinds of functions of spraying water.
The technical background instructors all needs to write writing on the blackboard at school the time, yet in wiping, just make the full classroom all to be chalk dust, not only can't continue teaching, more can teachers and students' health be damaged, and present blackboard eraser is exactly the arch-criminal who works the mischief, so people are sought after a kind of blackboard eraser that can not produce dust and replace present blackboard eraser; In addition, the structure of blackboard eraser immobilizes, for classmate of short and small stature, and effective blackboard wiping eminence position at all, these are all made troubles to students.So we provide a kind of flexible water spray blackboard eraser.
The summary of the invention the purpose of this utility model provides a kind of flexible water spray blackboard eraser, is used for solving ordinary blackboard eraser can't keep health in the blackboard wiping process problem.
For achieving the above object, the flexible water spray of the utility model blackboard eraser, the support bar that comprises connecting plate, sticks on the cleaning cotton on connecting plate surface and be connected the connecting plate side, offer a plurality of osculums from the connecting plate back side to the front, cleaning cotton is pasted and fixed on the connecting plate surface and covers osculum; Support bar is divided into multistage, is threaded between every section; After inserting osculum, many drainpipes withstand on the cleaning cotton inner surface; The other end of drainpipe assigns in the movable high-pressure water tank.
After adopting said structure, the user carries out setting-out by high-pressure water tank, and water is clamp-oned the cleaning cotton surface, and the moisturizing cleansing cotton by moistening cleaning cotton blackboard wiping, can wipe letter written with chalk and can avoid dust pollution again; The user can regulate the length of support bar according to the characteristic that is threaded, and makes support bar be fit to the height of oneself, is convenient to blackboard wiping.
The utility model has the advantages that: rational in infrastructure, convenient and practical, be widely used, flexible operation, can adjust support bar length according to the difference of height, and can keep environmental sanitation.
Description of drawings Fig. 1 is the overall structure schematic diagram of the flexible water spray of the utility model blackboard eraser.
The specific embodiment as shown in Figure 1, the flexible water spray of the utility model blackboard eraser, the support bar 3 that comprises connecting plate 1, sticks on the cleaning cotton 2 on connecting plate 1 surface and be connected connecting plate 1 side, offer a plurality of osculums 4 from connecting plate 1 back side to the front, cleaning cotton 2 is pasted and fixed on connecting plate 1 surface and covers osculum 4; Support bar 3 is divided into multistage, is threaded between every section; After inserting osculum 4, many drainpipes 5 withstand on cleaning cotton 2 inner surfaces; The other end of drainpipe 5 assigns in the movable high-pressure water tank 6.
Claims (1)
1, a kind of flexible water spray blackboard eraser, comprise connecting plate (1), stick on the cleaning cotton (2) on connecting plate (1) surface and the support bar (3) that is connected connecting plate (1) side, it is characterized in that: offer a plurality of osculums (4) from connecting plate (1) back side to the front, cleaning cotton (2) is pasted and fixed on connecting plate (1) surface and covers osculum (4); Support bar (3) is divided into multistage, is threaded between every section; Many drainpipes (5) withstand on cleaning cotton (2) inner surface after inserting osculum (4); The other end of drainpipe (5) assigns in the movable high-pressure water tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092324 CN200939779Y (en) | 2006-07-27 | 2006-07-27 | Telescopic spraying eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092324 CN200939779Y (en) | 2006-07-27 | 2006-07-27 | Telescopic spraying eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200939779Y true CN200939779Y (en) | 2007-08-29 |
Family
ID=38745964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092324 Expired - Fee Related CN200939779Y (en) | 2006-07-27 | 2006-07-27 | Telescopic spraying eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200939779Y (en) |
-
2006
- 2006-07-27 CN CN 200620092324 patent/CN200939779Y/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 |