CN204586204U - A kind of have the chalk sleeve that automatically can not break - Google Patents
A kind of have the chalk sleeve that automatically can not break Download PDFInfo
- Publication number
- CN204586204U CN204586204U CN201420827622.7U CN201420827622U CN204586204U CN 204586204 U CN204586204 U CN 204586204U CN 201420827622 U CN201420827622 U CN 201420827622U CN 204586204 U CN204586204 U CN 204586204U
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- CN
- China
- Prior art keywords
- fixator
- chalk
- bar
- soft rubber
- 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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- Electrically Operated Instructional Devices (AREA)
Abstract
There is the chalk sleeve that automatically can not break, at least comprise bar, spring, soft rubber, fixator, chalk end, elevating lever, switch and suction iron paper; Described bar is arranged on the outer surface of fixator and embeds the end being arranged on spring on fixator sidewall; The side of described spring is connected with bar; Described soft rubber is arranged on the end of fixator, and soft rubber and fixator compact siro spinning technology; Described chalk end is positioned at the upper end of fixator, and the bottom of chalk end and elevating lever compact siro spinning technology; Described elevating lever is arranged on the inside of fixator and is connected with switch; Described switch-linear hybrid is at the outer surface of fixator; Described suction iron paper be pasted onto fixator bottom and with fixator compact siro spinning technology; This structure can allow chalk continuous, and can wash one's hands after holding chalk again, can automatic chalk ejection, uses more convenient, is applicable to promoting the use of.
Description
Technical field
The utility model relates to educational aid applied technical field, and especially a kind of have the chalk sleeve that automatically can not break.
Background technology
Along with improving constantly of living standard, the moral level of society, know-how, life requirement, job requirements etc. are all constantly changing, and chalk is the instrument of impart knowledge, chalk is a kind of material that can be adsorbed on object be made up of gypsum, an instrument very important in teaching, exerting oneself when but the shorter very difficult grasp of chalk is write, because unbalance stress or the stressed inconsistent chalk that causes easily fracture, easy generation dust, the approach that chalk dust enters lung comprises nose by the upper respiratory tract, pharynx, bronchus, in this course, lung and the upper respiratory tract are worked the mischief, the granule dust floated in air also can drop on teacher's hair, on the face with on neck, spread effect is had to skin membrane, because the environment that human body skin is survived is weak acid environment, the basic living environment of skin is destroyed like this under the effect of dust alkalescence, affect for all the foregoing reasons and disturb teacher and normally work and live, the teaching profession's disease caused due to dust also gets more and more, dimension, has the chalk sleeve that automatically can not break for the problems referred to above proposition is a kind of.
Utility model content
For the problems referred to above, the utility model aims to provide one can ensure that chalk is continuous, and can wash one's hands after holding chalk again, can automatic chalk ejection, and easy to use has the chalk sleeve that automatically can not break.
For realizing this technical purpose, scheme of the present utility model is: a kind of have the chalk sleeve that automatically can not break, and at least comprises bar, spring, soft rubber, fixator, chalk end, elevating lever, switch and suction iron paper; Described bar is arranged on the outer surface of fixator and embeds the end being arranged on spring on fixator sidewall; The side of described spring is connected with bar; Described soft rubber is arranged on the end of fixator, and soft rubber and fixator compact siro spinning technology; Described chalk end is positioned at the upper end of fixator, and the bottom of chalk end and elevating lever compact siro spinning technology; Described elevating lever is arranged on the inside of fixator and is connected with switch; Described switch-linear hybrid is at the outer surface of fixator; Described suction iron paper be pasted onto fixator bottom and with fixator compact siro spinning technology.
As optimisation technique scheme of the present utility model: the head end that described soft rubber is sleeved on fixator is detachable; Described chalk controls to install by the spring in bar, and bar is projection cube structure; Described suction iron paper is connected with fixator end, inhales iron paper and can be changed to other adsorption structure.
Compared with prior art, the beneficial effects of the utility model are: this chalk with the chalk sleeve inside automatically can not broken controls to install by the spring in bar, and bar is projection cube structure, inhale iron paper to be connected with fixator end, make chalk in use convenient and do not use time convenient to place, inhale iron paper and can be changed to other adsorption structure, make chalk may be used for different occasions, this chalk sleeve can reduce the injury that direct contact chalk can cause health and the problem solving the firmly more dust of uneven generation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the outside connection diagram of fixator of the present utility model;
Wherein: 1, comprise bar, 2, spring, 3, soft rubber, 4, fixator, 5, chalk end, 6, elevating lever, 7, switch, 8, inhale iron paper.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of have the chalk sleeve that automatically can not break, and at least comprises bar 1, spring 2, soft rubber 3, fixator 4, chalk end 5, elevating lever 6, switch 7 and inhale iron paper 8; Described bar 1 is arranged on the outer surface of fixator 4 and embeds the end being arranged on spring 2 on fixator 4 sidewall; The side of described spring 2 is connected with bar 1; Described soft rubber 3 is arranged on the end of fixator 4, and soft rubber 3 and fixator 4 compact siro spinning technology; Described chalk end 5 is positioned at the upper end of fixator 4, and the bottom of chalk end 5 and elevating lever 6 compact siro spinning technology; Described elevating lever 6 is arranged on the inside of fixator 4 and is connected with switch 7; Described switch 7 is arranged on the outer surface of fixator 4; Described suction iron paper 8 be pasted onto fixator 4 bottom and with fixator 4 compact siro spinning technology.
As optimisation technique scheme of the present utility model: the head end that described soft rubber 3 is sleeved on fixator is detachable; Described chalk controls to install by the spring 2 in bar 1, and bar 1 is projection cube structure; Described suction iron paper 8 is connected with fixator 4 end, inhales iron paper 8 and can be changed to other adsorption structure.
Operation principle of the present utility model: this chalk sleeve be on the whole a cylinder the inside be an elevating lever 6 that can rise along with the activity of the bar 1 on its outer field fixator 4 or decline, at fixator 4 head inside dress chalk end 5, the projection cube structure that two symmetrical is had in the outside of elevating lever 6, it is stuck in spring 2 end of outside fixator 4 simultaneously and is positioned at fixator 4 interior, the head of fixator 4 is provided with one for wiping the soft rubber 3 of chalk dust, and soft rubber 3 can be changed after a procedure, fixator 4 end is provided with inhales iron paper 8 for being adsorbed on blackboard, whole device controls the turnover of chalk end 5 automatically by bar 1.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.
Claims (4)
1. there is the chalk sleeve that automatically can not break, at least comprise bar (1), spring (2), soft rubber (3), fixator (4), chalk end (5), elevating lever (6), switch (7) and inhale iron paper (8); It is characterized in that: described bar (1) is arranged on the outer surface of fixator (4) and embeds the end being arranged on spring (2) on fixator (4) sidewall; The side of described spring (2) is connected with bar (1); Described soft rubber (3) is arranged on the end of fixator (4), and soft rubber (3) and fixator (4) compact siro spinning technology; Described chalk end (5) is positioned at the upper end of fixator (4), and the bottom of chalk end (5) and elevating lever (6) compact siro spinning technology; Described elevating lever (6) is arranged on the inside of fixator (4) and is connected with switch (7); Described switch (7) is arranged on the outer surface of fixator (4); Described suction iron paper (8) be pasted onto fixator (4) bottom and with fixator (4) compact siro spinning technology.
2. according to claim 1 a kind ofly have the chalk sleeve that automatically can not break, and it is characterized in that: the head end that described soft rubber (3) is sleeved on fixator is detachable.
3. according to claim 1 a kind ofly have the chalk sleeve that automatically can not break, and it is characterized in that: described bar (1) is projection cube structure.
4. according to claim 1 a kind ofly have the chalk sleeve that automatically can not break, and it is characterized in that: described suction iron paper (8) is connected with fixator (4) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827622.7U CN204586204U (en) | 2014-12-24 | 2014-12-24 | A kind of have the chalk sleeve that automatically can not break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827622.7U CN204586204U (en) | 2014-12-24 | 2014-12-24 | A kind of have the chalk sleeve that automatically can not break |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204586204U true CN204586204U (en) | 2015-08-26 |
Family
ID=53922396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827622.7U Expired - Fee Related CN204586204U (en) | 2014-12-24 | 2014-12-24 | A kind of have the chalk sleeve that automatically can not break |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204586204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427300A (en) * | 2016-10-22 | 2017-02-22 | 钟贵洪 | Automatic chalk sleeve capable of keeping chalk unbroken |
-
2014
- 2014-12-24 CN CN201420827622.7U patent/CN204586204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427300A (en) * | 2016-10-22 | 2017-02-22 | 钟贵洪 | Automatic chalk sleeve capable of keeping chalk unbroken |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |