CN2080471U - Rolling automatic chalk dust collecting blackboard eraser - Google Patents
Rolling automatic chalk dust collecting blackboard eraser Download PDFInfo
- Publication number
- CN2080471U CN2080471U CN 90208817 CN90208817U CN2080471U CN 2080471 U CN2080471 U CN 2080471U CN 90208817 CN90208817 CN 90208817 CN 90208817 U CN90208817 U CN 90208817U CN 2080471 U CN2080471 U CN 2080471U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust collecting
- housing
- dust
- chalk dust
- 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.)
- Withdrawn
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a rolling automatic chalk dust collecting blackboard eraser, which belongs to a necessary teaching appliance. The rolling automatic chalk dust collecting blackboard eraser is composed of a rolling device composed of a cover belt type felt ring and a roller arranged in a U-shaped shell body, a dust collector composed of two rows of dust removing hair brushes, a hair brush plate and four springs, a plug door on one side of the shell body and a dust blocking curtain at the surroundings of an end opening of the shell body. The rolling automatic chalk dust collecting blackboard eraser can be used instead of the existing board erasers in teaching. The utility model has the advantages of simple structure, easy manufacture, and low cost.
Description
The utility model relates to a kind of teaching aid.
At present, the employed blackboard eraser of each teaching unit mainly constitutes by paste tens felt rugs on a plate face on the rectangle plank, and its shortcoming is: can only wipe word, and can not remove because of wiping the chalk dust that word causes.Like this air in the classroom there is pollution, has influenced the healthy of teachers and students.
The purpose of this utility model is for reducing owing to wipe the chalk powder that word causes and fly upward, and pollutes the problem of room air, has designed that a kind of it is simple in structure, does not need the blackboard eraser that other energy can automatic dedusting.
The utility model is to be reached by tourelle and dust arrester
The shape housing constitutes.Its notable attribute is to be located at
Make under the control of the cleaning brush on the dust arrester in the shape housing and be located at
Wipe during the covering the belt felt collar and move right of shape housing port and inhale dust when word returns left.With reference to the accompanying drawings structure of the present utility model is described below.
Accompanying drawing 1 is a perspective view of the present utility model.
Accompanying drawing 2 is tangent plane structural representations of the present utility model.
1 is to be in Fig. 1
The housing of shape, a side of housing are provided with an ash disposal and insert door.2 be provided in a side of that housing 1 port and some protrude the housing port cover the belt felt collar, the 3rd, around being located at
Shape housing 1 port is along the dust-break curtain in a week.
4 is two wooden rollers in Fig. 2, and is fastened on by the wheel shaft of roller 4
Shape housing 1 port inner wall bottom, two roller levels are located in the housing with parallel, the 2nd, by 40～50 felt rugs and roller axis normal stick on one be enclosed within on two rollers covering on the band cloth and form cover the belt felt collar, by roller 4 with cover belt felt collar 2 and constituted tourelle, its dust arrester is by being located in the housing 1, and two of the difunctional effect that has of tourelle bottom is got rid of dirt hairbrush 5 and is being located at
The rectangular wooden brush plate 7 that four springs, 6 controls of shape housing 1 inner bottom part are floated down constitutes.Cleaning brush 5 is provided with brush plate 7 angles at 45, and the cleaning brush head end contacts with covering belt felt collar face, and tail end is inserted and is bonded on the brush plate 7.Two eliminating dirt hairbrush are transverse to and cover the belt felt collar.
The utility model is the same with existing blackboard eraser using method, do when wiping the word action, the move left and right blackboard eraser, borrow the friction of letter stencil face and blackboard eraser felt collar face that chalk writing is wiped, in use the tourelle of blackboard eraser produces and rolls and two kinds of forms of motion of translation, and when blackboard eraser moved to left, the movement tendency of dedusting felt collar to the right, since cleaning brush with cover the belt felt collar and have angle to be provided with, be dedusting at this moment.When blackboard eraser moves to right,, be to wipe word at this moment because the effect of cleaning brush makes and covers the belt felt collar and stop to roll.
The utlity model has simple in structurely, advantage such as be widely used, do not need other energy just can wipe the function of word and dedusting simultaneously, overcome the problem that existing blackboard eraser is only wiped not dedusting of word.
Claims (1)
1, the automatic Dust-removing blackboard eraser of a kind of roller, it is by housing 1, felt collar 2, dust-break curtain 3, roller 4, cleaning brush 5, spring 6 and brush plate 7 constitute, it is characterized in that: arrange by 40～50 felt rugs and stick on that annular is covered on the band cloth and covering of the forming tourelle that belt felt collar 2 and roller 4 constitute and by cleaning brush 5, the dust arrester that brush plate 7 and spring 6 constitute is located in the housing 1, and the belt felt collar that covers on the tourelle partly protrudes from the housing port, is provided with a circle dust-break curtain around the port edge of housing, and a side of housing is provided with one and inserts door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208817 CN2080471U (en) | 1990-06-15 | 1990-06-15 | Rolling automatic chalk dust collecting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208817 CN2080471U (en) | 1990-06-15 | 1990-06-15 | Rolling automatic chalk dust collecting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2080471U true CN2080471U (en) | 1991-07-10 |
Family
ID=4889009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90208817 Withdrawn CN2080471U (en) | 1990-06-15 | 1990-06-15 | Rolling automatic chalk dust collecting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2080471U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895430A (en) * | 2014-04-18 | 2014-07-02 | 刘征宏 | Blackboard eraser capable of preventing powder from scattering |
| CN106313985A (en) * | 2016-09-14 | 2017-01-11 | 张英俊 | Dust-free blackboard eraser |
| CN107264137A (en) * | 2017-04-24 | 2017-10-20 | 张语心 | A kind of dust-proof semiautomatic blackboard eraser device |
| CN107297982A (en) * | 2017-07-27 | 2017-10-27 | 冯雪 | A kind of Self-cleaning blackboard is wiped |
| CN107415547A (en) * | 2017-08-22 | 2017-12-01 | 苏州市智水环境科研技术有限公司 | A kind of environment-friendly dust-proof eraser |
-
1990
- 1990-06-15 CN CN 90208817 patent/CN2080471U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895430A (en) * | 2014-04-18 | 2014-07-02 | 刘征宏 | Blackboard eraser capable of preventing powder from scattering |
| CN106313985A (en) * | 2016-09-14 | 2017-01-11 | 张英俊 | Dust-free blackboard eraser |
| CN107264137A (en) * | 2017-04-24 | 2017-10-20 | 张语心 | A kind of dust-proof semiautomatic blackboard eraser device |
| CN107297982A (en) * | 2017-07-27 | 2017-10-27 | 冯雪 | A kind of Self-cleaning blackboard is wiped |
| CN107297982B (en) * | 2017-07-27 | 2018-11-20 | 安徽科创新能源科技有限责任公司 | A kind of Self-cleaning blackboard wiping |
| CN107415547A (en) * | 2017-08-22 | 2017-12-01 | 苏州市智水环境科研技术有限公司 | A kind of environment-friendly dust-proof eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |