CN203876424U - Chalk sheath - Google Patents
Chalk sheath Download PDFInfo
- Publication number
- CN203876424U CN203876424U CN201420086221.0U CN201420086221U CN203876424U CN 203876424 U CN203876424 U CN 203876424U CN 201420086221 U CN201420086221 U CN 201420086221U CN 203876424 U CN203876424 U CN 203876424U
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- chalk
- right clamping
- cover
- pen cap
- 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 provides a chalk sheath which comprises a chalk sleeve and chalk in the chalk sleeve and is characterized by further comprising a housing installed on the chalk sleeve, wherein the housing comprises a left clamping plate, a right clamping plate and a chalk cover, and the lower outer wall of the chalk sleeve is provided with a left-right symmetric outer protruding cylindrical rotating shaft. The lower ends of the left clamping plate and the right clamping plate are provided with shaft holes matching with the cylindrical rotating shaft. The chalk cover has an integral structure and comprises a cover body and two connection boards arranged on the cover body and connected respectively with the left and right clamping plates. The upper outer wall of the left and right clamping plates are provided with jacks allowing the connection boards to be inserted in, and the two connection boards are respectively inserted in the jacks in the left and right clamping plates. Outer protruding slide blocks are arranged on the ends of the two connection boards, and limiting long grooves allowing the slide blocks to slide up and down are arranged in the left and right clamping grooves. The chalk sheath is clean, practical and simply structured.
Description
Technical field
The utility model relates to teaching aid technical field, is specifically related to a kind of chalk sleeve.
Background technology
In the teaching process of the subject such as English, mathematics, teacher need to use chalk at the enterprising andante book of blackboard conventionally.Using chalk while writing, need to clamp chalk with hand, conventionally can make hand be stained with chalk dust, cause using unhygienic, and can cause pessimal stimulation to hand skin; And carry chalk constantly, and directly chalk being placed on to pocket or other places, chalk dust can stick in pocket, unhygienic, be also inconvenient to carry, and chalk easily makes moist and even ruptures in storage carrying process like this; And in the time writing, easy fracture when chalk is longer, can not use more again, cause waste serious.
Utility model content
In order to make up the defect of prior art, the utility model patent provides a kind of chalk sleeve, and its convenience simple in structure is easy to use.
In order to realize above-mentioned technical purpose, the technical scheme of the utility model patent is
A kind of chalk sleeve, comprise the pen cap and be arranged on the chalk in the pen cap, it is characterized in that, also comprise that one is arranged on the outer cover on the pen cap, described outer cover comprises left clamping plate, right clamping plate and chalk cover, described left clamping plate and right clamping plate are the long clamping plate of arc, on the symmetrical outer wall that is arranged on the pen cap of left clamping plate and right clamping plate, the inwall of left clamping plate and right clamping plate is close to the outer wall of the pen cap, on the lower end outer wall of the described pen cap, be provided with the cylindrical shaft of symmetrical evagination, the lower end of described left clamping plate and right clamping plate all offers the axis hole matching with cylindrical shaft, the overall structure that described chalk cover is formed in one, described chalk cover comprises cover body and is arranged on two connecting plates on cover body, two connecting plates are connected with left clamping plate and right clamping plate respectively, outside the upper end of described left clamping plate and right clamping plate, pars intramuralis all offers the jack inserting for connecting plate, two connecting plates are plugged on respectively in the jack on left clamping plate and right clamping plate, the termination of described two connecting plates is provided with the slide block of evagination, on described left clamping plate and right clamping plate, all offer the spacing elongated slot sliding up and down for slide block.
As further improvement of the utility model, described chalk cover inside is provided with the cavity volume that holds chalk.
As further improvement of the utility model, on the described pen cap, be provided with the outer selection structure of chalk.
The utility model patent beneficial effect is:
Chalk sleeve of the present utility model, comprises the pen cap, and chalk is arranged in the pen cap, can protect chalk, and it is easy fracture not; Chalk is arranged in the pen cap in addition, in the time writing, only needs to clamp the pen cap with hand, and its hand can directly not contact chalk, much cleaner; Cover after chalk with outer cover in addition, the pen cap that chalk is housed can be put into pocket, be convenient for carrying; In the pen cap, be provided with in addition outer selection structure, remaining chalk can be released, do not waste; Chalk sleeve of the present utility model is simple in structure, easy to use, safety and sanitation.
Below in conjunction with accompanying drawing, the utility model patent is described further.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A of the present utility model place enlarged drawing
Wherein:
1 is the pen cap, and 2 is chalk, 21, cylindrical shaft; 3 is outer cover, and 31 is left clamping plate, and 32 is right clamping plate, and 33 is chalk cover, and 34 is cover body; 35 is connecting plate, and 36 is slide block, and 37 is spacing elongated slot, and 4 is the outer selection structure of chalk.
Detailed description of the invention
Below to the further illustrating of the utility model patented technology content, but the not restriction to the utility model patent flesh and blood.
As shown in Figure 1, a kind of chalk sleeve, comprises the pen cap 1 and is arranged on the chalk 2 in the pen cap 1, is provided with the outer selection structure 4 of chalk on the described pen cap 2.Like this, shorter when chalk end, when impact is write, chalk can be extrapolated, be convenient to write.
As depicted in figs. 1 and 2, the utility model also comprises that one is arranged on the outer cover 3 on the pen cap 2.The setting of outer cover, makes chalk can not be placed in for a long time outside, and outer cover can cover the openend of the pen cap (the namely external part of chalk end) entirety, realizes chalk and extraneous isolation, plays good protection against the tide and protective effect.
Particularly, with reference to accompanying drawing, described outer cover 3 comprises left clamping plate 31, right clamping plate 32 and chalk cover 33, described left clamping plate 31 and right clamping plate 32 are the long clamping plate of arc, on the symmetrical outer wall that is arranged on the pen cap 2 of left clamping plate 31 and right clamping plate 32, the inwall of left clamping plate 31 and right clamping plate 32 is close to the outer wall of the pen cap 2, on the lower end outer wall of the described pen cap 2, be provided with the cylindrical shaft 21 of symmetrical evagination, the lower end of described left clamping plate 31 and right clamping plate 32 all offers the axis hole matching with cylindrical shaft 21.Outer cover is fixed on the pen cap like this, and can rotate around the pen cap, and this design has overcome the defect that split type outer cover is easily lost.The overall structure that described chalk cover 33 is formed in one, described chalk cover 33 comprises cover body 34 and is arranged on two connecting plates 35 on cover body 34, described cover body 34 inside are provided with the cavity volume that holds chalk.Two connecting plates 35 are connected with left clamping plate 31 and right clamping plate 32 respectively, outside the upper end of described left clamping plate 31 and right clamping plate 32, pars intramuralis all offers the jack inserting for connecting plate, two connecting plates 35 are plugged on respectively in the jack on left clamping plate 31 and right clamping plate 32, the termination of described two connecting plates 35 is provided with the slide block 36 of evagination, all offers the spacing elongated slot 37 sliding up and down for slide block 36 on described left clamping plate 31 and right clamping plate 32.
When use, by the pull-up of chalk cover, rotation chalk cover, exposes chalk; While not needing to use, chalk cover is rotated to one end that chalk stretches out, two connecting plates of chalk cover are injected in the clamping plate of left and right, now chalk is completely enclosed within its both inside by chalk cover and the pen cap.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description to do; or directly or indirectly use the technical field that is attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a chalk sleeve, comprise the pen cap and be arranged on the chalk in the pen cap, it is characterized in that, also comprise that one is arranged on the outer cover on the pen cap, described outer cover comprises left clamping plate, right clamping plate and chalk cover, described left clamping plate and right clamping plate are the long clamping plate of arc, on the symmetrical outer wall that is arranged on the pen cap of left clamping plate and right clamping plate, the inwall of left clamping plate and right clamping plate is close to the outer wall of the pen cap, on the lower end outer wall of the described pen cap, be provided with the cylindrical shaft of symmetrical evagination, the lower end of described left clamping plate and right clamping plate all offers the axis hole matching with cylindrical shaft, the overall structure that described chalk cover is formed in one, described chalk cover comprises cover body and is arranged on two connecting plates on cover body, two connecting plates are connected with left clamping plate and right clamping plate respectively, outside the upper end of described left clamping plate and right clamping plate, pars intramuralis all offers the jack inserting for connecting plate, two connecting plates are plugged on respectively in the jack on left clamping plate and right clamping plate, the termination of described two connecting plates is provided with the slide block of evagination, on described left clamping plate and right clamping plate, all offer the spacing elongated slot sliding up and down for slide block.
2. chalk sleeve according to claim 1, is characterized in that, described chalk cover inside is provided with the cavity volume that holds chalk.
3. chalk sleeve according to claim 1, is characterized in that, is provided with the outer selection structure of chalk on the described pen cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086221.0U CN203876424U (en) | 2014-02-27 | 2014-02-27 | Chalk sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086221.0U CN203876424U (en) | 2014-02-27 | 2014-02-27 | Chalk sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203876424U true CN203876424U (en) | 2014-10-15 |
Family
ID=51676962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086221.0U Expired - Fee Related CN203876424U (en) | 2014-02-27 | 2014-02-27 | Chalk sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203876424U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946397A (en) * | 2015-10-02 | 2016-09-21 | 刘乐凝 | Chalk protection sleeve |
| CN110810453A (en) * | 2019-12-04 | 2020-02-21 | 金辉 | Automatic dough spreading and oil applying device of dough kneading machine |
| CN111489613A (en) * | 2020-04-24 | 2020-08-04 | 河南工学院 | Education and teaching prevents thoughtlessly using individual teaching device of teacher |
-
2014
- 2014-02-27 CN CN201420086221.0U patent/CN203876424U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946397A (en) * | 2015-10-02 | 2016-09-21 | 刘乐凝 | Chalk protection sleeve |
| CN106079971A (en) * | 2015-10-02 | 2016-11-09 | 刘乐凝 | A kind of chalk of band sheath |
| CN110810453A (en) * | 2019-12-04 | 2020-02-21 | 金辉 | Automatic dough spreading and oil applying device of dough kneading machine |
| CN110810453B (en) * | 2019-12-04 | 2021-09-03 | 江苏泰兴曲霞面粉有限公司 | Automatic dough spreading and oil applying device of dough kneading machine |
| CN111489613A (en) * | 2020-04-24 | 2020-08-04 | 河南工学院 | Education and teaching prevents thoughtlessly using individual teaching device of teacher |
| CN111489613B (en) * | 2020-04-24 | 2022-01-28 | 河南工学院 | Education and teaching prevents thoughtlessly using individual teaching device of teacher |
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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: 20141015 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |