CN203739508U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN203739508U CN203739508U CN201320857289.XU CN201320857289U CN203739508U CN 203739508 U CN203739508 U CN 203739508U CN 201320857289 U CN201320857289 U CN 201320857289U CN 203739508 U CN203739508 U CN 203739508U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- embedded
- blackboard
- main body
- embedded block
- 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
Abstract
The utility model belongs to structure improvement on blackboard erasers, and provides a blackboard eraser which is simple in structure, convenient to use and good in blackboard cleaning effect. The blackboard eraser comprises a blackboard eraser body and an extension module which is detachably connected with the blackboard eraser body. An embedding groove is formed in the blackboard eraser body, and an embedding notch is formed in the side wall of the embedding groove. The extension module comprises an embedded block and a telescopic rod, wherein the embedded block is embedded in the embedding groove in the blackboard eraser body. The side wall of the embedded block is provided with a protruding block embedded in the embedding notch in the side wall of the embedding groove. A fixing frame is arranged on the upper surface of the embedded block. A bolt hole is formed in the fixing frame. The telescopic rod is arranged on the fixing frame. The telescopic rod is connected with the fixing frame due to the fact that a fixing bolt penetrates through the bolt hole.
Description
Affiliated technical field
The utility model relates to a kind of blackboard eraser.
Background technology
Along with scientific and technological progress, country more and more payes attention to for educational undertaking, and teaching environment is also become better and better.But, the main still traditional blackboard of blackboard that China school is used at present, and the wiping method of this blackboard is mainly the wiping back and forth on blackboard of hand-held blackboard eraser.And the method for this wiping is still more difficult for pupil, with pupil's height, carry out blackboard wiping, very difficult wiping obtains the top of blackboard, must must bring chair, stands in the word that comes the top of blackboard wiping above chair.When the area that needs wiping more greatly, just must mobile chair, stand up the words in the different places of wiping.Such wiping method is not only very difficult for pupil, and stands in blackboard wiping above chair and also have certain danger.
Summary of the invention
The utility model, for problem above, provides a kind of simple in structure, easy to use, the blackboard eraser that blackboard wiping is respond well.
In order to realize above-mentioned purpose of the present utility model, the utility model has adopted following technical scheme, the utility model comprises blackboard eraser main body and elongated modules, it is characterized in that, the place of shaking hands above blackboard eraser main body is provided with embedded groove, on the sidewall of embedded groove, be provided with embedding groove, elongated modules comprises embedded block and expansion link, the embedded groove tabling in embedded block and blackboard eraser main body wherein, on the sidewall of embedded block, be provided with casting lug thereon, embedding groove tabling in casting lug thereon and blackboard eraser main body, blackboard eraser main body connects by embedding groove and casting lug thereon dismoutability with elongated modules.
On the upper surface of embedded block, be provided with fixed mount, be provided with bolt hole above fixed mount, expansion link is installed above fixed mount, expansion link passes bolt hole by set bolt and fixed mount is connected.Embedding groove is that quality of rubber materials, casting lug thereon are metal material.Embedding groove is that metal material, casting lug thereon are quality of rubber materials.
In use, blackboard eraser body and elongated modules are connected, and the embedding groove that blackboard eraser body arranges is above quality of rubber materials, the casting lug thereon that elongated modules arranges is above metal material, or embedding groove is that metal material, casting lug thereon are quality of rubber materials, can increase the frictional force between blackboard eraser body and elongated modules.The problem that when having avoided blackboard wiping again, blackboard eraser body comes off.
The beneficial effect of the utility model blackboard eraser:
(1) simple in structure
The utility model blackboard eraser mainly comprises blackboard eraser main body and elongated modules, and elongated modules and blackboard eraser main body are connected by embedded groove and embedded block, and expansion link is installed above embedded block.The utility model is not used too much member, so structure is very simple.
(2) easy to use
When needs blackboard wiping top, only blackboard eraser main body and elongated modules need be connected, stand on the ground, hold expansion link, by expansion link, control blackboard eraser and carry out the word above blackboard wiping.
(3) respond well
In blackboard wiping bottom, only need to hold the wiping of blackboard eraser main body, in the time of blackboard wiping top, by control expansion link, control blackboard eraser and carry out wiping, and expansion link connects by set bolt with embedded block, so the angle between expansion link and blackboard eraser main body can arbitrarily regulate, make operation more laborsaving, also the power of control action on blackboard eraser main body better; Wiping effect is good, and wiping process is laborsaving.
Accompanying drawing explanation
Below in conjunction with concrete figure, be illustrated.
Fig. 1 is the structural representation of the utility model blackboard eraser.
Fig. 2 is the structural representation of blackboard eraser main body.
Fig. 3 is the structural representation of elongated modules.
In figure: 1. blackboard eraser main body, 2. elongated modules, 3. embedded groove, 4. embeds groove, 5. embedded block, 6. fixed mount, 7. set bolt, 8. expansion link, 9. casting lug thereon, 10. bolt hole.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3, comprise blackboard eraser main body 1 and elongated modules 2, blackboard eraser main body 1 place of shaking hands is above provided with embedded groove 3, on the sidewall of embedded groove 3, be provided with and embed groove 4, elongated modules 2 comprises embedded block 5 and expansion link 8, embedded groove 3 tablings in embedded block 5 and blackboard eraser main body 1 wherein, on the sidewall of embedded block 5, be provided with casting lug thereon 9, embedding groove 4 tablings in casting lug thereon 9 and blackboard eraser main body 1, blackboard eraser main body 1 connects by embedding groove 4 and casting lug thereon 9 dismoutabilities with elongated modules 2.
On the upper surface of described embedded block 5, be provided with fixed mount 6, fixed mount 6 is provided with bolt hole 10 above, and fixed mount 6 is provided with expansion link 9 above, and expansion link 9 is connected through bolt hole 10 and fixed mount 6 by set bolt 7.Embedding groove 4 is that quality of rubber materials, casting lug thereon 9 are metal material.Embedding groove 4 is that metal material, casting lug thereon 9 are quality of rubber materials.
In use, blackboard eraser body 1 is connected with elongated modules 2, and the embedding groove 4 that blackboard eraser body 1 arranges is above quality of rubber materials, the casting lug thereon 9 that elongated modules 2 arranges is above metal material, or embedding groove 4 is that metal material, casting lug thereon 9 are quality of rubber materials, can increase the frictional force between blackboard eraser body 1 and elongated modules 2.The problem that when having avoided blackboard wiping again, blackboard eraser body 1 comes off.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a blackboard eraser, comprise blackboard eraser main body (1) and elongated modules (2), blackboard eraser main body (1) place of shaking hands is above provided with embedded groove (3), elongated modules (2) comprises embedded block (5) and expansion link (8), embedded groove (3) tabling in embedded block (5) and blackboard eraser main body (1) wherein, blackboard eraser main body (1) connects by embedded groove (3) and embedded block (5) dismoutability with elongated modules (2), it is characterized in that: on the upper surface of embedded block (5), be provided with fixed mount (6), fixed mount (6) is provided with bolt hole (10) above, fixed mount (6) is provided with expansion link (9) above, expansion link (9) is connected through bolt hole (10) and fixed mount (6) by set bolt (7), and expansion link (9) can carry out 0 °～180 ° rotations with respect to embedded block (5) and blackboard eraser main body (1), above the sidewall of described embedded groove (3), be provided with and embed groove (4), on the sidewall of embedded block (5), be provided with casting lug thereon (9), embedding groove (4) tabling in casting lug thereon (9) and blackboard eraser main body (1).
2. according to the blackboard eraser described in claims 1, it is characterized in that: embedding groove (4) is that quality of rubber materials, casting lug thereon (9) are metal material.
3. according to the blackboard eraser described in claims 1, it is characterized in that: embedding groove (4) is that metal material, casting lug thereon (9) are quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857289.XU CN203739508U (en) | 2013-12-24 | 2013-12-24 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857289.XU CN203739508U (en) | 2013-12-24 | 2013-12-24 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203739508U true CN203739508U (en) | 2014-07-30 |
Family
ID=51339364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320857289.XU Expired - Fee Related CN203739508U (en) | 2013-12-24 | 2013-12-24 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203739508U (en) |
-
2013
- 2013-12-24 CN CN201320857289.XU patent/CN203739508U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |