CN201342887Y - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN201342887Y CN201342887Y CNU2008202278581U CN200820227858U CN201342887Y CN 201342887 Y CN201342887 Y CN 201342887Y CN U2008202278581 U CNU2008202278581 U CN U2008202278581U CN 200820227858 U CN200820227858 U CN 200820227858U CN 201342887 Y CN201342887 Y CN 201342887Y
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dustproof
- dust
- shallow
- seat
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a blackboard eraser, in particular to a dustproof blackboard eraser comprising a blackboard eraser base and a blackboard eraser body fixed on the upper part of the blackboard eraser base. The cross section of the blackboard eraser base is in a shallow U-shape; the upper end of the blackboard eraser base is provided with an inner flange; the upper part of the blackboard eraser base is provided with the blackboard eraser body and a compressed elastic component; shallow U shaped dustproof bodies are fixed in the middle part of the blackboard eraser body, on the compressed elastic component at the external periphery of the blackboard eraser body and the upper part of the compressed elastic component; gaps are left between the inner openings of the shallow U shaped dustproof bodies and the periphery of the blackboard eraser body; the shallow U shaped dustproof bodies are provided with external flanges at the lower ends and closed-angle internally-suspended elastomers on the top; and the top of the blackboard eraser body supports against the tops of the elastomers. The dustproof blackboard eraser is easy to make with low cost and can prevent chalk dust flying so as to avoid hurting the teacher and the students.
Description
Technical field
The utility model relates to a kind of blackboard eraser, especially a kind of a kind of dust-proof blackboard eraser that can prevent that chalk dust from flying upward.
Background technology
At present, the blackboard eraser major part of school's practicality all is made of blackboard eraser seat and blackboard eraser body, this blackboard eraser is when blackboard wiping, chalk dust flies upward everywhere, the academics and students of blackboard wiping is sitting in front-seat student in addition, by breathing directly chalk dust is sucked in the lung, in the course of time, pneumoconiosis is very unfavorable to academics and students's health easily.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of dust-proof blackboard eraser that can prevent that chalk dust from flying upward.
The technical scheme in the invention for solving the technical problem is:
A kind of dust-proof blackboard eraser, by the blackboard eraser seat be fixed on blackboard eraser seat upper board rub body and form, the cross section of described blackboard eraser seat is shallow " U " font, there is inward flange the upper end of blackboard eraser seat, be fixed with blackboard eraser body and elasticity of compression parts on the top of blackboard eraser seat, the blackboard eraser body is at the middle part, elasticity of compression parts are in the exterior circumferential of blackboard eraser body, being fixed with the cross section in elasticity of compression upper parts of components is the dustproof body of shallow " U " font, the internal orifice of dustproof body and blackboard eraser body peripheral gapped, there is outward flange the bottom of dustproof body, is fixed with unsettled elastomer in the wedge angle at the top of dustproof body, and the top of blackboard eraser body is lower than elastomeric top.
The technical scheme in the invention for solving the technical problem can also be:
The used material of described blackboard eraser body is felt or mane.
The used material of blackboard eraser seat described in the utility model is wood materials, plastics or metal material.
The used material of dustproof body described in the utility model is wood materials, plastics or metal material.
Elasticity of compression parts described in the utility model are the compression spring.
Elastomeric material of the present utility model is an elastic caoutchouc.
The beneficial effects of the utility model are:
Make simply, cost is low, can prevent that chalk dust from flying upward, and prevents that the academics and students is endangered by chalk dust.
Description of drawings
Accompanying drawing is a structural representation of the present utility model
The specific embodiment
As shown in the figure, a kind of dust-proof blackboard eraser, by blackboard eraser seat 1 be fixed on blackboard eraser seat 1 upper board rub body 4 and form, the cross section of described blackboard eraser seat 1 is shallow " U " font, there is inward flange the upper end of blackboard eraser seat 1, be fixed with blackboard eraser body 4 and elasticity of compression parts 2 on the top of blackboard eraser seat 1, blackboard eraser body 4 is at the middle part, elasticity of compression parts 2 are in the exterior circumferential of blackboard eraser body 4, being fixed with the cross section on the top of elasticity of compression parts 2 is the dustproof body 3 of shallow " U " font, the internal orifice of dustproof body 3 is peripheral gapped with blackboard eraser body 4, and it is felt or mane that there are outside plate rub body 4 used materials the bottom of the body 3 that prevents dust.Described blackboard eraser seat 1 used material is wood materials, plastics or metal material.Described dustproof body 3 used materials are wood materials, plastics or metal material.Described elasticity of compression parts 2 are the compression spring.Flange is fixed with unsettled elastomer 5 in the wedge angle at the top of dustproof body 3, and the top of blackboard eraser body 4 is lower than the top of elastomer 5.The material of described elastomer (5) is an elastic caoutchouc.
Claims (6)
1, a kind of dust-proof blackboard eraser, by blackboard eraser seat (1) be fixed on blackboard eraser seat (1) upper board rub body (4) and form, it is characterized in that: the cross section of described blackboard eraser seat (1) is shallow " U " font, there is inward flange the upper end of blackboard eraser seat (1), be fixed with blackboard eraser body (4) and elasticity of compression parts (2) on the top of blackboard eraser seat (1), blackboard eraser body (4) is at the middle part, elasticity of compression parts (2) are in the exterior circumferential of blackboard eraser body (4), being fixed with the cross section on the top of elasticity of compression parts (2) is the dustproof body (3) of shallow " U " font, the internal orifice of dustproof body (3) and blackboard eraser body (4) peripheral gapped, there is outward flange the bottom of dustproof body (3), top at dustproof body (3) is fixed with unsettled elastomer (5) in the wedge angle, and the top of blackboard eraser body (4) is lower than the top of elastomer (5).
2, a kind of dust-proof blackboard eraser according to claim 1 is characterized in that: the used material of described blackboard eraser body (4) is felt or mane.
3, a kind of dust-proof blackboard eraser according to claim 1 and 2 is characterized in that: the used material of described blackboard eraser seat (1) is wood materials, plastics or metal material.
4, a kind of dust-proof blackboard eraser according to claim 3 is characterized in that: the used material of described dustproof body (3) is wood materials, plastics or metal material.
5, a kind of dust-proof blackboard eraser according to claim 4 is characterized in that: described elasticity of compression parts (2) are the compression spring.
6, a kind of dust-proof blackboard eraser according to claim 5 is characterized in that: the material of elastomer (5) is an elastic caoutchouc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202278581U CN201342887Y (en) | 2008-12-06 | 2008-12-06 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202278581U CN201342887Y (en) | 2008-12-06 | 2008-12-06 | Dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201342887Y true CN201342887Y (en) | 2009-11-11 |
Family
ID=41274471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202278581U Expired - Fee Related CN201342887Y (en) | 2008-12-06 | 2008-12-06 | Dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201342887Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465698A (en) * | 2013-08-28 | 2013-12-25 | 陈浩 | Dust collecting blackboard eraser and application method thereof |
| CN103895427A (en) * | 2014-02-25 | 2014-07-02 | 陈浩 | Simple dust removal blackboard eraser and using method thereof |
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
| CN107415541A (en) * | 2016-06-26 | 2017-12-01 | 钱煜琴 | A kind of improved dust-proof chalk eraser |
-
2008
- 2008-12-06 CN CNU2008202278581U patent/CN201342887Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465698A (en) * | 2013-08-28 | 2013-12-25 | 陈浩 | Dust collecting blackboard eraser and application method thereof |
| CN103465698B (en) * | 2013-08-28 | 2015-11-18 | 陈浩 | Dust-removing blackboard eraser and using method thereof |
| CN103895427A (en) * | 2014-02-25 | 2014-07-02 | 陈浩 | Simple dust removal blackboard eraser and using method thereof |
| CN103895427B (en) * | 2014-02-25 | 2016-06-29 | 陈浩 | Simple and easy dust-removing blackboard eraser and using method thereof |
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
| CN107415541A (en) * | 2016-06-26 | 2017-12-01 | 钱煜琴 | A kind of improved dust-proof chalk eraser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201342887Y (en) | Dustproof blackboard eraser | |
| CN103434315A (en) | Dust-proof blackboard eraser and application method thereof | |
| CN202923214U (en) | Blackboard for students | |
| CN203920165U (en) | A kind of environment-friendly dust-proof eraser with elevating function | |
| CN202557134U (en) | Dustproof blackboard eraser | |
| CN201736671U (en) | Correction fluid with eraser | |
| CN202986557U (en) | Dustproof blackboard eraser | |
| CN201941457U (en) | Dustproof blackboard eraser | |
| CN202345201U (en) | Blackboard eraser | |
| CN202062916U (en) | Adsorption blackboard eraser | |
| CN201573451U (en) | Dustless two-faced chalk brush | |
| CN201922796U (en) | Blackboard cleaning tool capable of collecting chalk dust | |
| CN201728944U (en) | Chalk sleeve | |
| CN203198533U (en) | Multifunctional board eraser | |
| CN2908191Y (en) | Blackboard eraser cover | |
| CN101708675A (en) | Dustproof blackboard brush | |
| CN206067325U (en) | A kind of modified model chalkboard eraser | |
| CN201136397Y (en) | Dust absorbing blackboard wiper | |
| CN201573448U (en) | Dust-free chalk wiper | |
| CN203110727U (en) | Blackboard eraser | |
| CN202225613U (en) | Pen with correcting cap | |
| CN201317214Y (en) | Novel dust-absorbing blackboard eraser | |
| CN2913044Y (en) | Dust-proof blackboard eraser | |
| CN203172258U (en) | Blackboard | |
| CN204472340U (en) | Language teaching chalk writing erase tool |
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: 20091111 Termination date: 20100106 |