CN202517903U - Chalk sleeve for teaching - Google Patents
Chalk sleeve for teaching Download PDFInfo
- Publication number
- CN202517903U CN202517903U CN201220172405XU CN201220172405U CN202517903U CN 202517903 U CN202517903 U CN 202517903U CN 201220172405X U CN201220172405X U CN 201220172405XU CN 201220172405 U CN201220172405 U CN 201220172405U CN 202517903 U CN202517903 U CN 202517903U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- chalk
- push rod
- inner sleeve
- spring
- 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
The utility model relates to a chalk sleeve for teaching. The chalk sleeve comprises an outer sleeve and an inner sleeve which are sleeved together, wherein a positioning sleeve is fixedly connected to the inside of one end of the outer sleeve; one end of the inner sleeve is sleeved on the positioning sleeve, and the other end of the inner sleeve is provided with a plurality of clamping plates; the outer circumferential surface of each clamping plate has the conical degree; a gap is formed between the adjacent clamping plates; a spring is sleeved on the positioning sleeve; one end of the spring is connected with the positioning sleeve, and the other end of the spring is connected with the inner sleeve; a push rod is arranged in the positioning sleeve; a connecting disc is fixedly connected to the inside of the inner sleeve; and one end of the push rod is positioned outside the outer sleeve, and the other end of the push rod penetrates through the positioning sleeve and is fixedly connected with the connecting disc. When the chalk sleeve is used, the inner sleeve is pushed out by the push rod, the clamping plates are opened, chalk is put into the inner sleeve, the push rod is loosened, the inner sleeve slides into the outer sleeve under the action of the spring, and the chalk is clamped by the clamping plates. The chalk sleeve is simple in structure and convenient to use, and the chalk is not easy to break off in the writing process.
Description
Technical field
The utility model relates to a kind of teaching and uses device, relates to a kind of teaching specifically and uses chalk sleeve.
Background technology
At present, the teacher need use chalk on blackboard, to write at school the time; Be that the directly hand-held chalk of teacher writes on blackboard now mostly, in writing process, if write firmly excessive; Chalk fractures easily, can not re-use after chalk fractures, and the chalk waste is bigger.
The utility model content
The utility model problem to be solved provide a kind of simple in structure, easy to use, when writing chalk not the teaching of frangible use chalk sleeve.
For addressing the above problem, the technical scheme that the utility model adopted is: chalk sleeve is used in a kind of teaching, comprises the outer sleeve and the inner sleeve that are sleeved on together; One end internal fixation of said outer sleeve is connected with abutment sleeve, and an end of said inner sleeve is sleeved on the abutment sleeve, and the other end of said inner sleeve is provided with a plurality of clamping plates; The outer circumference surface of said clamping plate has tapering, has the gap between the adjacent clamping plate, is set with spring on the said abutment sleeve; One end of said spring is connected with abutment sleeve; The other end of said spring is connected with inner sleeve, is provided with push rod in the said abutment sleeve, is fixedly connected with terminal pad in the said inner sleeve; One end of said push rod is positioned at the outside of outer sleeve, and the other end of said push rod passes abutment sleeve and is fixedly connected with terminal pad.
The end that a kind of concrete prioritization scheme, said outer sleeve are provided with push rod is provided with protective cap, and the other end of said outer sleeve is provided with block.
A kind of concrete prioritization scheme, said protective cap all is threaded with outer sleeve with block.
A kind of concrete prioritization scheme, the quantity of said clamping plate are four.
The utility model is taked above technical scheme, has the following advantages: during use, through push rod inner sleeve is released; Clamping plate is opened, and chalk is put into inner sleeve, unclamps push rod; Under the effect of spring, inner sleeve slips in the outer sleeve, through clamping plate chalk is clamped; This chalk sleeve is simple in structure, and is easy to use, chalk frangible not when writing.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Accompanying drawing 1 is a kind of the teaching with the structural representation of chalk sleeve among the utility model embodiment;
Accompanying drawing 2 is the cutaway view of clamping plate in the accompanying drawing 1.
Among the figure:
The 1-push rod; The 2-abutment sleeve; The 3-inner sleeve; The 4-spring; The 5-outer sleeve; The 6-terminal pad; The 7-chalk; The 8-block; The 9-protective cap; The 10-gap; The 11-clamping plate.
The specific embodiment
Embodiment: with shown in the accompanying drawing 2, chalk sleeve is used in a kind of teaching like accompanying drawing 1, comprises the outer sleeve 5 and inner sleeve 3 that are sleeved on together; One end internal fixation of outer sleeve 5 is connected with abutment sleeve 2, and an end of inner sleeve 3 is sleeved on the abutment sleeve 2, and the other end of inner sleeve 3 is provided with four clamping plates 11; The outer circumference surface of clamping plate 11 has tapering, has gap 10 between the adjacent clamping plate 11, is set with spring 4 on the abutment sleeve 2; One end of spring 4 is connected with abutment sleeve 2; The other end of spring 4 is connected with inner sleeve 3, is provided with push rod 1 in the abutment sleeve 2, is fixedly connected with terminal pad 6 in the inner sleeve 3; One end of push rod 1 is positioned at the outside of outer sleeve 5, and the other end of push rod 1 passes abutment sleeve 2 and is fixedly connected with terminal pad 6.
The end that outer sleeve 5 is provided with push rod 1 is provided with protective cap 9, and the other end of outer sleeve 5 is provided with block 8, and protective cap 9 all is threaded with outer sleeve 5 with block 8.
During use, through push rod 1 inner sleeve 3 is released, clamping plate 11 is opened, and chalk 7 is put into inner sleeve 3, unclamps push rod 1, and under the effect of spring 4, inner sleeve 3 slips in the outer sleeve 5, through clamping plate 11 chalk 7 is clamped to get final product.
Claims (4)
1. chalk sleeve is used in a teaching; Comprise the outer sleeve (5) and the inner sleeve (3) that are sleeved on together, it is characterized in that: an end internal fixation of said outer sleeve (5) is connected with abutment sleeve (2), and an end of said inner sleeve (3) is sleeved on the abutment sleeve (2); The other end of said inner sleeve (3) is provided with a plurality of clamping plates (11); The outer circumference surface of said clamping plate (11) has tapering, has gap (10) between the adjacent clamping plate (11), is set with spring (4) on the said abutment sleeve (2); One end of said spring (4) is connected with abutment sleeve (2); The other end of said spring (4) is connected with inner sleeve (3), is provided with push rod (1) in the said abutment sleeve (2), is fixedly connected with terminal pad (6) in the said inner sleeve (3); One end of said push rod (1) is positioned at the outside of outer sleeve (5), and the other end of said push rod (1) passes abutment sleeve (2) and is fixedly connected with terminal pad (6).
2. chalk sleeve is used in a kind of teaching as claimed in claim 1, it is characterized in that: the end that said outer sleeve (5) is provided with push rod (1) is provided with protective cap (9), and the other end of said outer sleeve (5) is provided with block (8).
3. chalk sleeve is used in a kind of teaching as claimed in claim 2, it is characterized in that: said protective cap (9) and block (8) all are threaded with outer sleeve (5).
4. chalk sleeve is used in a kind of teaching as claimed in claim 1, it is characterized in that: the quantity of said clamping plate (11) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220172405XU CN202517903U (en) | 2012-04-15 | 2012-04-15 | Chalk sleeve for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220172405XU CN202517903U (en) | 2012-04-15 | 2012-04-15 | Chalk sleeve for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517903U true CN202517903U (en) | 2012-11-07 |
Family
ID=47100865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220172405XU Expired - Fee Related CN202517903U (en) | 2012-04-15 | 2012-04-15 | Chalk sleeve for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517903U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786695A (en) * | 2015-05-08 | 2015-07-22 | 攀枝花学院 | Pen container capable of lengthening short pencil |
| CN107521257A (en) * | 2017-07-19 | 2017-12-29 | 安徽卓特信息技术有限公司 | A kind of multi-function chalk casing |
| CN110269359A (en) * | 2019-04-18 | 2019-09-24 | 烟台华力文具有限公司 | A kind of wax crayon box |
| CN110626550A (en) * | 2019-09-10 | 2019-12-31 | 梁丽莎 | Automatic chalk device and using method thereof |
-
2012
- 2012-04-15 CN CN201220172405XU patent/CN202517903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786695A (en) * | 2015-05-08 | 2015-07-22 | 攀枝花学院 | Pen container capable of lengthening short pencil |
| CN107521257A (en) * | 2017-07-19 | 2017-12-29 | 安徽卓特信息技术有限公司 | A kind of multi-function chalk casing |
| CN110269359A (en) * | 2019-04-18 | 2019-09-24 | 烟台华力文具有限公司 | A kind of wax crayon box |
| CN110626550A (en) * | 2019-09-10 | 2019-12-31 | 梁丽莎 | Automatic chalk device and using method thereof |
| CN110626550B (en) * | 2019-09-10 | 2021-09-14 | 梁丽莎 | Automatic chalk device and using method thereof |
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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: 20121107 Termination date: 20130415 |