CN2749700Y - Water storage type blackboard eraser - Google Patents
Water storage type blackboard eraser Download PDFInfo
- Publication number
- CN2749700Y CN2749700Y CN 200420113142 CN200420113142U CN2749700Y CN 2749700 Y CN2749700 Y CN 2749700Y CN 200420113142 CN200420113142 CN 200420113142 CN 200420113142 U CN200420113142 U CN 200420113142U CN 2749700 Y CN2749700 Y CN 2749700Y
- Authority
- CN
- China
- Prior art keywords
- water
- water storage
- groove
- blackboard eraser
- sac
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a water storage type blackboard eraser which comprises a handle and a groove, wherein a water-absorbing sponge is arranged in the groove, the groove is connected with a water storage sac and a cylinder extends from the groove at the connecting position. The cylinder is directly inserted into the inner part of the water storage sac and contacted with the water, a water outlet pipe arranged in the water storage sac is connected with the inner part of the water-absorbing sponge, and the surface of the water storage sac is provided with water storage holes. When the utility model is used, users can extrude the water on the sponge through extruding the water storage sac and then the users can grasp the handle to erase the blackboard. The blackboard eraser can be positioned vertically after being used, the water in the sponge can reflow into the water storage sac. The utility model has the advantages of simple structure, convenient use, high sanitation, etc. The dust pollution can be reduced, and the health of students and teachers can be protected.
Description
Technical field the utility model relates to a kind of teaching aid, especially a kind of water storage type blackboard eraser.
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.
The summary of the invention the purpose of this utility model provides a kind of water storage type blackboard eraser, is used to solve the problem that ordinary blackboard eraser can't prevent dust pollution.
For achieving the above object, the utility model water storage type blackboard eraser, comprise handle, groove, in groove, put into water-absorbing sponge, and groove is connected with water-retention sac, stretches out a cylinder in the junction from groove, and the inside that cylinder directly inserts water-retention sac contacts with water, in water-retention sac, there is outlet pipe to be connected to water-absorbing sponge inside, has the retaining hole on the surface of water-retention sac.
After adopting said structure, the user can be by the extruding water-retention sac, the water of water-retention sac inside is expressed on the sponge in the groove, like this user when erasing the board with regard to not again dust danced in the air, thereby reduced environmental pollution.
The utility model has the advantages that: simple in structure, convenient and healthy, more can reduce dust pollution, the protection teachers and students' is healthy.
Description of drawings Fig. 1 is the overall structure schematic diagram of the utility model water storage type blackboard eraser.
The specific embodiment as shown in Figure 1, the utility model water storage type blackboard eraser, comprise handle (1), groove (2), in groove (2), put into water-absorbing sponge (3), and groove (2) is connected with water-retention sac (4), stretches out a cylinder (5) in the junction from groove (2), and the inside that cylinder (5) directly inserts water-retention sac (4) contacts with water, in water-retention sac (4), there is outlet pipe (6) to be connected to water-absorbing sponge (3) inside, has retaining hole (7) on the surface of water-retention sac (4).When using, the user pours water in the water-retention sac (4) into by retaining hole (7), overstock water-retention sac (4) then, allowing water pass through outlet pipe (6) is extruded on the interior sponge (3) of groove (2), the user just can hold handle (1) blackboard has been carried out wiping like this, and after using, can erect blackboard eraser and place, allow the interior water of sponge (3) flow back to water-retention sac (4) again, thereby can recycle by cylinder (5).
Claims (1)
1, a kind of water storage type blackboard eraser, comprise handle (1), groove (2), it is characterized in that: in groove (2), put into water-absorbing sponge (3), and groove (2) is connected with water-retention sac (4), stretch out a cylinder (5) in the junction from groove (2), the inside that cylinder (5) directly inserts water-retention sac (4) contacts with water, has outlet pipe (6) to be connected to water-absorbing sponge (3) inside in water-retention sac (4), has retaining hole (7) on the surface of water-retention sac (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420113142 CN2749700Y (en) | 2004-11-09 | 2004-11-09 | Water storage type blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420113142 CN2749700Y (en) | 2004-11-09 | 2004-11-09 | Water storage type blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749700Y true CN2749700Y (en) | 2006-01-04 |
Family
ID=35823093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420113142 Expired - Fee Related CN2749700Y (en) | 2004-11-09 | 2004-11-09 | Water storage type blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2749700Y (en) |
-
2004
- 2004-11-09 CN CN 200420113142 patent/CN2749700Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211222765U (en) | Blackboard for English teaching | |
| CN2749700Y (en) | Water storage type blackboard eraser | |
| CN209426413U (en) | It is a kind of can continuous writing blackboard Special writing pen | |
| CN201089301Y (en) | Convenient blackboard | |
| CN205292019U (en) | Mathematics education and teaching of primary school is with multi -functional teaching board | |
| CN205468162U (en) | Blackboard eraser | |
| CN200981424Y (en) | Novel blackboard | |
| CN201264451Y (en) | Multifunctional teaching aid | |
| CN200977797Y (en) | Double head pen | |
| CN2754898Y (en) | Blackboard | |
| CN201941391U (en) | Portable blackboard with eraser | |
| CN203957631U (en) | Blackboard easy to use | |
| CN203078107U (en) | Blackboard eraser with water spraying device | |
| CN2743143Y (en) | Blackboard dust decontaminating device | |
| CN207120589U (en) | A kind of portable teaching board | |
| CN202169813U (en) | Multifunctional blackboard | |
| CN213676108U (en) | Liquid chalk fixing device | |
| CN201745321U (en) | Dust-free blackboard | |
| CN2792806Y (en) | Saving pencil | |
| CN200939783Y (en) | Telescopic eraser | |
| CN2908194Y (en) | Ink bottle | |
| CN2782407Y (en) | Multi-function hard pen | |
| CN107627771A (en) | The Multifunctional blackboard device of teaching | |
| CN2716023Y (en) | Blackboard erase | |
| CN2799276Y (en) | Dust-free blackboard eraser |
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 |