CN205185674U - Rotation type clockwork spring blackboard eraser - Google Patents
Rotation type clockwork spring blackboard eraser Download PDFInfo
- Publication number
- CN205185674U CN205185674U CN201520854125.0U CN201520854125U CN205185674U CN 205185674 U CN205185674 U CN 205185674U CN 201520854125 U CN201520854125 U CN 201520854125U CN 205185674 U CN205185674 U CN 205185674U
- Authority
- CN
- China
- Prior art keywords
- clockwork spring
- outer cover
- sets
- rubbery outer
- pivot
- 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
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model provides a rotation type clockwork spring blackboard eraser, including rotary brush, brush seat, rubber shell, through -hole, dust bag, rubber buffer, clockwork spring, pivot, knob, press the switch, one side of rubber shell sets up rotary brush, and the opposite side sets up the dust bag, set up the brush seat bottom the rotary brush set up the rubber buffer bottom the dust bag one side that the brush seat was kept away from to the dust bag sets up the through -hole, rubber shell center sets up the pivot, and pivot one end is connected on the brush seat, and the other end is connected on the knob, on the rubber shell the outside of dust bag sets up the clockwork spring, the one end of clockwork spring is connected as rotation center in the pivot, the other end is connected on the rubber shell, on the rubber shell clockwork spring district upper portion sets up press the switch, press the switch presses on the clockwork spring. The beneficial effects of the utility model are that: board convenient and fast blacks to dust pollution has been avoided.
Description
Technical field
The utility model relates to teaching field, particularly a kind of rotary clockwork spring blackboard eraser.
Background technology
Teacher or classmate on classroom, sometimes erase the board very hard, sometimes rock blackboard eraser wrist pain, also have dust from flying, affect us and breathe, our lung is injured.
Utility model content
The utility model proposes a kind of rotary clockwork spring blackboard eraser, comprising rotating brushes, woollen brush base, rubbery outer cover, through hole, dust capsule, rubber stopper, clockwork spring, rotating shaft, knob, by compressing switch; It is characterized in that: arrange rotating brushes in the side of described rubbery outer cover, opposite side arranges dust capsule; Woollen brush base is set bottom described rotating brushes, rubber stopper is set bottom described dust capsule, at described dust capsule, through hole is set away from the side of woollen brush base; Arrange rotating shaft at described rubbery outer cover center, and described rotating shaft one end is connected on woollen brush base, the other end is connected on knob; The arranged outside clockwork spring of the described dust capsule on described rubbery outer cover, one end of described clockwork spring is connected in described rotating shaft as pivot, and the other end is connected on described rubbery outer cover; Top, described clockwork spring district on described rubbery outer cover is arranged by compressing switch, and is describedly pressed on described clockwork spring by compressing switch.
By above setting, the beneficial effects of the utility model are: described knob facilitates rotating shaft, thus screws clockwork spring, and by compressing switch for controlling the lax speed of clockwork spring, dust capsule is used for collecting the chalk powder occurred in the process of erasing the board.
Accompanying drawing explanation
Figure is the utility model structural representation.
In figure 1, rotating brushes 2, woollen brush base 3, rubbery outer cover 4, through hole 5, dust capsule 6, rubber stopper 7, clockwork spring 8, rotating shaft 9, knob 10, by compressing switch.
Detailed description of the invention
As shown in the figure: a kind of rotary clockwork spring blackboard eraser, comprises rotating brushes 1, woollen brush base 2, rubbery outer cover 3, through hole 4, dust capsule 5, rubber stopper 6, clockwork spring 7, rotating shaft 8, knob 9, by compressing switch 10; It is characterized in that: arrange rotating brushes 1 in the side of described rubbery outer cover 3, opposite side arranges dust capsule 5; Woollen brush base 2 is set bottom described rotating brushes 1, rubber stopper 6 is set bottom described dust capsule 5, at described dust capsule 5, through hole 4 is set away from the side of woollen brush base 2; Arrange rotating shaft 8 at described rubbery outer cover 3 center, and described rotating shaft 8 one end is connected on woollen brush base 2, the other end is connected on knob 9; The arranged outside clockwork spring of the described dust capsule 5 on described rubbery outer cover 3, one end of described clockwork spring 7 is connected in described rotating shaft 8 as pivot, and the other end is connected on described rubbery outer cover 3; Top, described clockwork spring district on described rubbery outer cover 3 is arranged by compressing switch 10, describedly 10 to be pressed on described clockwork spring 7 by compressing switch.
Described knob 9 drives described rotating shaft 8 to rotate, and is screwed by described clockwork spring 7, describedly 10 pushes down described clockwork spring 7 by compressing switch, slowly loosen described by compressing switch 10 when erasing the board, described clockwork spring 7 relaxes gradually, drives described rotating shaft 8 to rotate, thus drives described woollen brush base 2 to rotate together with described rotating brushes 1, realize erasing the board fast, chalk powder enters described dust capsule 5 by described through hole 4, after wiping blackboard, opens described rubber stopper 6, chalk powder is poured out, conveniently erases the board next time.
Claims (1)
1. a rotary clockwork spring blackboard eraser, comprises rotating brushes, woollen brush base, rubbery outer cover, through hole, dust capsule, rubber stopper, clockwork spring, rotating shaft, knob, by compressing switch; It is characterized in that: arrange rotating brushes in the side of described rubbery outer cover, opposite side arranges dust capsule; Woollen brush base is set bottom described rotating brushes, rubber stopper is set bottom described dust capsule, at described dust capsule, through hole is set away from the side of woollen brush base; Arrange rotating shaft at described rubbery outer cover center, and described rotating shaft one end is connected on woollen brush base, the other end is connected on knob; The arranged outside clockwork spring of the described dust capsule on described rubbery outer cover, one end of described clockwork spring is connected in described rotating shaft as pivot, and the other end is connected on described rubbery outer cover; Top, described clockwork spring district on described rubbery outer cover is arranged by compressing switch, and is describedly pressed on described clockwork spring by compressing switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854125.0U CN205185674U (en) | 2015-10-31 | 2015-10-31 | Rotation type clockwork spring blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854125.0U CN205185674U (en) | 2015-10-31 | 2015-10-31 | Rotation type clockwork spring blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205185674U true CN205185674U (en) | 2016-04-27 |
Family
ID=55778702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520854125.0U Expired - Fee Related CN205185674U (en) | 2015-10-31 | 2015-10-31 | Rotation type clockwork spring blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205185674U (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 |
-
2015
- 2015-10-31 CN CN201520854125.0U patent/CN205185674U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |