CN204055094U - A kind of blackboard eraser - Google Patents
A kind of blackboard eraser Download PDFInfo
- Publication number
- CN204055094U CN204055094U CN201420439143.8U CN201420439143U CN204055094U CN 204055094 U CN204055094 U CN 204055094U CN 201420439143 U CN201420439143 U CN 201420439143U CN 204055094 U CN204055094 U CN 204055094U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- gear
- blackboard eraser
- runner
- dust collection
- 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 discloses a kind of blackboard eraser, it comprises the blackboard eraser body with cavity, the first rotating shaft is provided with in the cavity of described blackboard eraser body, the two ends of described first rotating shaft are fixed with gear respectively, described first rotating shaft is respectively installed with bearing block in the outside of described gear, what interlock on each described bearing block and with described first rotating shaft is separately installed with the second rotating shaft, the lower end of each described second rotating shaft is separately installed with the runner being with some spokes, and each described gear engages with the spoke on corresponding described runner respectively, each described runner boss is snapped with cleaning wiping cloth respectively by installing tache, described first rotating shaft is being provided with dust collection roller described in two between gear, described dust collection roller there is the mat layer of band bristle by gripper, adopt said structure, it is time saving and energy saving to reach, and avoids chalk dust to fly upward everywhere, reduces the effect on environmental sanitation impact.
Description
Technical field
The utility model relates to a kind of blackboard eraser.
Background technology
When present blackboard eraser erases the board, chalk dust flies upward everywhere, not only wastes time and energy, and affects environmental sanitation, and is easy to be sucked by human body, and harm teacher's is healthy.
Summary of the invention
The purpose of this utility model is to provide a kind of time saving and energy saving, avoids chalk dust to fly upward everywhere, reduces the blackboard eraser on environmental sanitation impact.
The technical solution of the utility model is a kind of blackboard eraser, it comprises the blackboard eraser body 1 with cavity, it is characterized in that: in the cavity of described blackboard eraser body 1, be provided with the first rotating shaft 2, the two ends of described first rotating shaft 2 are fixed with gear 7 respectively, described first rotating shaft 2 is respectively installed with bearing block 3 in the outside of described gear 7, what interlock on each described bearing block 3 and with described first rotating shaft is separately installed with the second rotating shaft 4, the lower end of each described second rotating shaft 4 is separately installed with the runner 5 being with some spokes 9, and each described gear 7 engages with the spoke 9 on corresponding described runner 5 respectively, each described runner 5 is snapped with cleaning wiping cloth 6 respectively by installing tache 13, described first rotating shaft 2 is provided with dust collection roller 10 between gear described in two 7, described dust collection roller 10 is clamped with the mat layer 12 of band bristle by clamper 11.
The technical solution of the utility model also has the top of each described gear 7 engaging tooth to be equipped with abrasive rubber layer 8 and abrasive rubber layer 8 on described each described gear 7 engaging tooth protrudes the edge certain distance of described blackboard eraser body 1.
The beneficial effects of the utility model are by being provided with the first rotating shaft 2 in the cavity of described blackboard eraser body 1, the two ends of described first rotating shaft 2 are fixed with gear 7 respectively, described first rotating shaft 2 is respectively installed with bearing block 3 in the outside of described gear 7, what interlock on each described bearing block 3 and with described first rotating shaft is separately installed with the second rotating shaft 4, the lower end of each described second rotating shaft 4 is separately installed with the runner 5 being with some spokes 9, and each described gear 7 engages with the spoke 9 on corresponding described runner 5 respectively, each described runner 5 wheel hub is snapped with cleaning wiping cloth 6 respectively by installing tache 13, described first rotating shaft 2 is provided with dust collection roller 10 between gear described in two 7, described dust collection roller 10 is clamped with the mat layer 12 of band bristle by clamper 11, during blackboard wiping, grasp blackboard eraser body 1 and by runner 5 and blackboard surface contact, mobile blackboard wipe body 1 now gear 7 also with blackboard surface contact gear 7 rotated, namely drive that runner 5 is relative to be rotated because each described gear 7 engages with the spoke 9 on corresponding described runner 5 respectively, the cleaning wiping cloth 6 pairs of blackboards on runner 5 wheel hub are made to carry out wiping, meanwhile, gear 7 also drives the first rotating shaft 2 to rotate, the dust collection roller 10 be arranged in the first rotating shaft 2 also and then rotates, the mat layer 12 of the band bristle that dust collection roller 10 is arranged plays suction-operated to chalk dust while rotation, after using a period of time, the cleaning wiping cloth 6 on wheel hub and mat layer 12 are changed, it is time saving and energy saving to reach, chalk dust is avoided to fly upward everywhere, reduce the effect on environmental sanitation impact.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the upward view of Fig. 1
In Fig. 1,21, blackboard eraser body, the 2, first rotating shaft, 3, bearing block, the 4, second rotating shaft, 5, runner, 6, cleaning wiping cloth, 7, gear, 8, abrasive rubber layer, 9, spoke, 10, dust collection roller, 11, clamper, 12, mat layer, 13, installing tache.
Detailed description of the invention
According to Fig. 1, shown in 2, the utility model relates to a kind of blackboard eraser, it comprises the blackboard eraser body 1 with cavity, the first rotating shaft 2 is provided with in the cavity of described blackboard eraser body 1, the two ends of described first rotating shaft 2 are fixed with gear 7 respectively, described first rotating shaft 2 is respectively installed with bearing block 3 in the outside of described gear 7, what interlock on each described bearing block 3 and with described first rotating shaft 2 is separately installed with the second rotating shaft 4, the lower end of each described rotating shaft 4 is separately installed with the runner 5 being with some spokes 9, and each described gear 7 engages with the spoke 9 on corresponding described runner 5 respectively, each described runner 5 is snapped with cleaning wiping cloth 6 respectively by installing tache 13, described first rotating shaft 2 is provided with dust collection roller 10 between gear described in two 7, described dust collection roller 10 is clamped with the mat layer 12 of band bristle by clamper 11, the top of each described gear 7 engaging tooth is equipped with abrasive rubber layer 8 and abrasive rubber layer 8 on described each described gear 7 engaging tooth protrudes the edge certain distance of described blackboard eraser body 1, and object increases the service life that gear 7 engaging tooth and the frictional force on blackboard surface also can extend gear 7, during blackboard wiping, grasp blackboard eraser body 1 and by runner 5 and blackboard surface contact, mobile blackboard wipe body 1 now gear 7 also with blackboard surface contact gear 7 rotated, namely drive that runner 5 is relative to be rotated because each described gear 7 engages with the spoke 9 on corresponding described runner 5 respectively, the cleaning wiping cloth 6 pairs of blackboards on runner 5 wheel hub are made to carry out wiping, meanwhile, gear 7 also drives the first rotating shaft 2 to rotate, the dust collection roller 10 be arranged in the first rotating shaft 2 also and then rotates, the mat layer 12 of the band bristle that dust collection roller 10 is arranged plays suction-operated to chalk dust while rotation, after using a period of time, the cleaning wiping cloth 6 on wheel hub and mat layer 12 are changed, it is time saving and energy saving to reach, chalk dust is avoided to fly upward everywhere, reduce the effect on environmental sanitation impact.
Claims (2)
1. a blackboard eraser, it comprises the blackboard eraser body (1) with cavity, it is characterized in that: in the cavity of described blackboard eraser body (1), be provided with the first rotating shaft (2), the two ends of described first rotating shaft (2) are fixed with gear (7) respectively, go up described first rotating shaft (2) and be respectively installed with bearing block (3) in the outside of described gear (7), what each described bearing block (3) above and with described first rotating shaft was interlocked is separately installed with the second rotating shaft (4), the lower end of each described second rotating shaft (4) is separately installed with the runner (5) of the some spokes of band (9), and each described gear (7) is engaged with the spoke (9) on corresponding described runner (5) respectively, each described runner (5) wheel hub is snapped with cleaning wiping cloth (6) respectively by installing tache (13), go up described first rotating shaft (2) and between gear described in two (7), dust collection roller (10) be installed, described dust collection roller (10) is clamped with the mat layer (12) of band bristle by clamper (11).
2. a kind of blackboard eraser according to claim 1, is characterized in that: the top of each described gear (7) engaging tooth is equipped with abrasive rubber layer (8) and abrasive rubber layer (8) on described each described gear (7) engaging tooth protrudes the edge certain distance of described blackboard eraser body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439143.8U CN204055094U (en) | 2014-07-31 | 2014-07-31 | A kind of blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420439143.8U CN204055094U (en) | 2014-07-31 | 2014-07-31 | A kind of blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204055094U true CN204055094U (en) | 2014-12-31 |
Family
ID=52196669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420439143.8U Expired - Fee Related CN204055094U (en) | 2014-07-31 | 2014-07-31 | A kind of blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204055094U (en) |
-
2014
- 2014-07-31 CN CN201420439143.8U patent/CN204055094U/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: 20141231 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |