CN201863554U - Chalk clamping fixing device used for teaching - Google Patents
Chalk clamping fixing device used for teaching Download PDFInfo
- Publication number
- CN201863554U CN201863554U CN2010206321022U CN201020632102U CN201863554U CN 201863554 U CN201863554 U CN 201863554U CN 2010206321022 U CN2010206321022 U CN 2010206321022U CN 201020632102 U CN201020632102 U CN 201020632102U CN 201863554 U CN201863554 U CN 201863554U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chalk
- teaching
- fixing device
- clamping fixing
- 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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Abstract
A chalk clamping fixing device used for teaching relates to the technical field of auxiliary apparatuses for teaching, consists of a sleeve (1), a threaded rod (2) and elastic clamping pieces (3) and is characterized in that anti-slip stripes are arranged on the outer wall of the sleeve (1), the inner diameter of which, conforms with the outer diameter of chalk; the front end of the sleeve (1) is connected and fixed with the arc elastic clamping pieces (3) that are mutually symmetrical; and the internal thread at the rear end of the sleeve is connected with the threaded rod (2), the outer end of which, is provided with a hand wheel (4). The advantages of the chalk clamping fixing device are as follows: being simple in structure and convenient to use and carry, being available for writing on a blackboard with a hand pinching the two arc elastic clamping pieces on the front end of the sleeve, being capable of avoiding the direct contact of hands and chalk, keeping hands clean and healthy, and reducing pollution.
Description
Technical field
The utility model relates to teaching appurtenance technical field, specifically a kind of teaching chalk clamp-on holder.
Background technology
Chalk is the staple that school teacher writes on blackboard, points directly to contact with chalk when writing, and often expires the powder that hand is a white after class for one, and the adversary pollutes, healthy unfavorable to the people.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of user's hand directly not contact with chalk, can avoid pointing the teaching of being polluted chalk clamp-on holder.
The purpose of this utility model is achieved in that this teaching is made up of sleeve, screw rod, elastic clip with chalk clamp-on holder, the sleeve outer wall that internal diameter and chalk external diameter adapt is provided with anti-skidding striped, barrel forward end is being connected and fixed symmetrical arc elastic clip, and the rear end internal whorl is connecting the screw rod that the outer end is provided with handwheel.
During use, chalk is inserted sleeve and grip with elastic clip, user's hand is pinched two elastic clips and can be write on blackboard; The chalk head exposes rotatable screw rod when too short, and screw rod can be released chalk gradually.
Advantage of the present utility model: simple in structure, use, easy to carry, two arc elastic clips that hand is pinched above the barrel forward end can be write on blackboard, can avoid hand directly to contact with chalk, keep the sanitation and hygiene of hand, reduce and pollute.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail: this teaching is made up of sleeve 1, screw rod 2, elastic clip 3 with the chalk clamp-on holder, sleeve 1 outer wall that internal diameter and chalk external diameter adapt is provided with anti-skidding striped, sleeve 1 front end is being connected and fixed symmetrical arc elastic clip 3, and the rear end internal whorl is connecting the screw rod 2 that the outer end is provided with handwheel 4.
Claims (1)
1. teaching chalk clamp-on holder, form by sleeve (1), screw rod (2), elastic clip (3), it is characterized in that sleeve (1) outer wall that internal diameter and chalk external diameter adapt is provided with anti-skidding striped, sleeve (1) front end is being connected and fixed symmetrical arc elastic clip (3), and the rear end internal whorl is connecting the screw rod (2) that the outer end is provided with handwheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206321022U CN201863554U (en) | 2010-11-30 | 2010-11-30 | Chalk clamping fixing device used for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206321022U CN201863554U (en) | 2010-11-30 | 2010-11-30 | Chalk clamping fixing device used for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201863554U true CN201863554U (en) | 2011-06-15 |
Family
ID=44134719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206321022U Expired - Fee Related CN201863554U (en) | 2010-11-30 | 2010-11-30 | Chalk clamping fixing device used for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201863554U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452251A (en) * | 2011-12-10 | 2012-05-16 | 刘安民 | Chalk using device |
| CN105711293A (en) * | 2016-01-22 | 2016-06-29 | 孙硕 | Fracture-proof chalk clamp |
| CN107685565A (en) * | 2017-08-29 | 2018-02-13 | 许昌市建安区第实验学校 | A kind of Novel chalk clamp |
-
2010
- 2010-11-30 CN CN2010206321022U patent/CN201863554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452251A (en) * | 2011-12-10 | 2012-05-16 | 刘安民 | Chalk using device |
| CN105711293A (en) * | 2016-01-22 | 2016-06-29 | 孙硕 | Fracture-proof chalk clamp |
| CN107685565A (en) * | 2017-08-29 | 2018-02-13 | 许昌市建安区第实验学校 | A kind of Novel chalk clamp |
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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: 20110615 Termination date: 20111130 |