CN202439470U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN202439470U CN202439470U CN2012200543324U CN201220054332U CN202439470U CN 202439470 U CN202439470 U CN 202439470U CN 2012200543324 U CN2012200543324 U CN 2012200543324U CN 201220054332 U CN201220054332 U CN 201220054332U CN 202439470 U CN202439470 U CN 202439470U
- Authority
- CN
- China
- Prior art keywords
- main body
- eraser
- blackboard eraser
- blackboard
- eraser main
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a blackboard eraser. The blackboard eraser comprises a board eraser main body and eraser bristles formed on the board eraser main body. The board eraser main body is box-shaped; a dust box communicated with the board eraser main body is arranged at the lower end of the board eraser main body; the eraser bristles are ring-strip shaped, and the ring-strip shaped eraser bristles are formed on two rolling cylinders; two ends of each rolling cylinder is arranged on the board eraser main body through a rolling cylinder rotary shaft; the parts of the ring-strip shaped eraser bristles arranged outside the two rolling cylinders are exposed out of the board eraser main body; scrapers arranged inside the two rolling cylinders are arranged in the board eraser main body; the length direction of each scraper is identical to the axial direction of the rolling cylinder rotary shafts; a pin shaft is arranged on the board eraser main body in a sliding mode; a hole opposite to the pin shaft is arranged on the rolling cylinder rotary shaft of at least one rolling cylinder. The rolling cylinders are deadlocked when the blackboard eraser is used for erasing the blackboard, the rolling cylinders are unlocked when dust on the eraser bristles is scraped, and the blackboard eraser erases the blackboard back and forth, the chalk dust in the eraser bristles is scrapped off so that the blackboard eraser can be used for conveniently erasing the blackboard next time.
Description
Technical field
The utility model relates to a kind of blackboard eraser.
Technical background
Existing blackboard eraser comprises wiping board and snag, and snag is fixed on the wiping board, after use a period of time, can stick chalk dust in the snag, and when erasing the board, it is big that the resistance of snag becomes, and is difficult for wiping the chalk person's handwriting on the blackboard again.
Summary of the invention
The technical problem that the utility model will solve is: a kind of blackboard eraser is provided, makes it can clear up the chalk dust that is bonded in the snag.
In order to solve the problems of the technologies described above; The utility model comprise the blackboard eraser main body be arranged on the snag on the blackboard eraser main body, said blackboard eraser main body is box-like, the lower end of blackboard eraser main body is provided with the dust box that communicates with the blackboard eraser main body; Snag is the ring-band shape snag; The ring-band shape snag is arranged on two cylinders, and the two ends of cylinder are arranged on the blackboard eraser main body through roller shaft, and the ring-band shape snag is positioned at the part dew in the outside of two cylinders and puts outside the blackboard eraser main body; Be provided with in the blackboard eraser main body and be positioned at the inboard scraper plate of two cylinders; Each scraper plate length direction and roller shaft slide on the blackboard eraser main body and are provided with bearing pin axially in the same way, have at least the roller shaft of a cylinder be provided with bearing pin over against the hole.
The beneficial effect of the utility model is: the utility model is when erasing the board, and when locked cylinder, dust on scraping snag, with the cylinder release, the wiping of on blackboard, returning can scrape the chalk dust in the snag, is convenient to erase the board next time.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Wherein: 1, blackboard eraser main body, 2, snag, 3, the dust box, 4, scraper plate, 5, cylinder, 6, roller shaft, 7, bearing pin.
The specific embodiment
A kind of blackboard eraser as depicted in figs. 1 and 2; Comprise blackboard eraser main body 1 and be arranged on the snag 2 on the blackboard eraser main body 1, blackboard eraser main body 1 is box-like, and the lower end of blackboard eraser main body 1 is provided with the dust box 3 that communicates with blackboard eraser main body 1; Snag 2 is the ring-band shape snag; The ring-band shape snag is arranged on two cylinders 5, and the two ends of cylinder 5 are arranged on the blackboard eraser main body 1 through roller shaft 6, and the ring-band shape snag is positioned at the part dew in the outside of two cylinders 5 and puts outside blackboard eraser main body 1; Be provided with the scraper plate 4 that is positioned at two cylinders, 5 inboards in the blackboard eraser main body 1; Each scraper plate 4 length direction and roller shaft 6 slide on the blackboard eraser main body 1 and are provided with bearing pin 7 axially in the same way, have at least the roller shaft 6 of a cylinder 5 be provided with bearing pin 7 over against the hole.
Method for using: when erasing the board, in the hole in the bearing pin 7 insertion roller shafts 6, that cylinder 5 is locked.When sticking chalk dust in the snag of blackboard eraser, pull up bearing pin 7, cylinder 5 can be rotated, wiping on blackboard again, cylinder 5 drives snag 2 and rotates, and during snag 2 process scraper plates 4, scraper plate 4 scrapes chalk dust and drops in the dust box 3.
Claims (1)
1. a blackboard eraser comprises the blackboard eraser main body and is arranged on the snag on the blackboard eraser main body, and it is characterized in that: said blackboard eraser main body is box-like; The lower end of blackboard eraser main body is provided with the dust box that communicates with the blackboard eraser main body, and snag is the ring-band shape snag, and the ring-band shape snag is arranged on two cylinders; The two ends of cylinder are arranged on the blackboard eraser main body through roller shaft; The ring-band shape snag is positioned at the part dew in the outside of two cylinders puts outside the blackboard eraser main body, is provided with in the blackboard eraser main body to be positioned at the inboard scraper plate of two cylinders, and each scraper plate length direction and roller shaft are axially in the same way; Slide on the blackboard eraser main body and be provided with bearing pin, have at least the roller shaft of a cylinder be provided with bearing pin over against the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543324U CN202439470U (en) | 2012-02-20 | 2012-02-20 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543324U CN202439470U (en) | 2012-02-20 | 2012-02-20 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202439470U true CN202439470U (en) | 2012-09-19 |
Family
ID=46820924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200543324U Expired - Fee Related CN202439470U (en) | 2012-02-20 | 2012-02-20 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202439470U (en) |
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 |
| CN106004185A (en) * | 2016-06-29 | 2016-10-12 | 裴萌 | Blackboard eraser preventing chalk dust from flying |
| CN106114015A (en) * | 2016-07-25 | 2016-11-16 | 张艳龙 | A kind of self-cleaning crawler belt device for blackboard eraser and using method thereof |
| 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 |
| CN107813638A (en) * | 2017-11-01 | 2018-03-20 | 钟晓芳 | A kind of teaching environment friendly blackboard |
-
2012
- 2012-02-20 CN CN2012200543324U patent/CN202439470U/en not_active Expired - Fee Related
Cited By (9)
| 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 |
| CN106004185A (en) * | 2016-06-29 | 2016-10-12 | 裴萌 | Blackboard eraser preventing chalk dust from flying |
| CN106004185B (en) * | 2016-06-29 | 2018-02-27 | 裴萌 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
| CN106114015A (en) * | 2016-07-25 | 2016-11-16 | 张艳龙 | A kind of self-cleaning crawler belt device for blackboard eraser and using method thereof |
| CN106114015B (en) * | 2016-07-25 | 2017-09-12 | 张艳龙 | A kind of self-cleaning crawler belt device for blackboard eraser and its application method |
| 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 |
| CN107813638A (en) * | 2017-11-01 | 2018-03-20 | 钟晓芳 | A kind of teaching environment friendly blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130220 |