CN103350590B - Chalk protection sleeve - Google Patents
Chalk protection sleeve Download PDFInfo
- Publication number
- CN103350590B CN103350590B CN201310249342.2A CN201310249342A CN103350590B CN 103350590 B CN103350590 B CN 103350590B CN 201310249342 A CN201310249342 A CN 201310249342A CN 103350590 B CN103350590 B CN 103350590B
- Authority
- CN
- China
- Prior art keywords
- chalk
- sleeve pipe
- jacking block
- chalk sleeve
- protection sleeve
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a chalk protection sleeve which comprises a chalk protection sleeve pipe provided with external threads, an ejection block and screwing-in nuts, wherein symmetrical grooves are formed in two sides of the chalk protection sleeve pipe; the ejection block is hollowed out and provided with connection ribs; the diameter of an inner ejection plate of the ejection block is smaller than the inner diameter of the chalk protection sleeve pipe; and the widths of the connection ribs are smaller than those of the grooves. According to the chalk protection sleeve, the chalk protection sleeve pipe provided with the external threads is arranged, and chalk is placed into the protection sleeve pipe and pushed out forwards gradually through the ejection block and the screwing-in nuts, so that a hand is prevented from being directly contacted with the chalk, the chalk is prevented from being broken at the same time and effectively used, and phenomena such as waste and the like are avoided.
Description
[technical field]
The present invention relates to a kind of chalk sleeve.
[background technology]
At present, in school teacher, class hour all uses chalk, generally all directly uses hand-held chalk, and full hand is all chalk powder, and unhygienic impact is healthy, and chalk easily fractures in use, leave chalk end causes waste.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes a kind ofly hand both can have been avoided directly to contact chalk, have the chalk sleeve of wasting phenomenons such as can preventing that chalk from fractureing.
For achieving the above object, the present invention proposes a kind of chalk sleeve, comprise and be provided with externally threaded chalk sleeve pipe, jacking block, precession nut, described chalk sleeve pipe both sides have symmetrical fluting, and described jacking block is provided with hollow out, dowel, and the outside diameter of hollow out is greater than the external diameter of chalk sleeve pipe, the inner top diameter of jacking block is less than the internal diameter of chalk sleeve pipe, the width of dowel is less than the width of fluting, during installation, the dowel of jacking block is aimed at fluting, can be enclosed within chalk sleeve pipe.
As preferably, be provided with tail cap at chalk sleeve pipe afterbody.
Beneficial effect of the present invention: the present invention, by being provided with externally threaded chalk sleeve pipe, puts into protecting pipe chalk, by jacking block, precession nut, release chalk gradually forward, avoid hand and directly contact chalk, can prevent again chalk from fractureing simultaneously, effective use chalk, avoids the phenomenons such as waste.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of chalk sleeve of the present invention.
Fig. 2 is the structural representation of jacking block of the present invention.
[detailed description of the invention]
Consult figure, the present invention devises a kind of chalk sleeve, comprise and be provided with externally threaded chalk sleeve pipe 1, jacking block 3, precession nut 4, described chalk sleeve pipe 1 both sides have symmetrical fluting 2, and described jacking block 3 is provided with hollow out 7, dowel 8, and the outside diameter of hollow out 7 is greater than the external diameter of chalk sleeve pipe 1, inner top 9 diameter of jacking block 3 is less than the internal diameter of chalk sleeve pipe 1, the width of dowel 8 is less than the width of fluting 2, and more comfortable for using, afterbody arranges tail cap 5.
The course of work of the present invention:
A kind of chalk sleeve of the present invention, first chalk 6 is sidelong into chalk sleeve pipe 1 from fluting, top 3 is installed and enters block, the dowel 8 of jacking block 3 is aimed at fluting 2, is enclosed within chalk sleeve pipe 1, then precession nut 4 is installed, finally tail cap 5 is installed, rotate precession nut 4 during use, drive jacking block 3 to push away forward, the inner top 9 of jacking block 3 promotes chalk 6 and advances.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (1)
1. a chalk sleeve, comprise and be provided with externally threaded chalk sleeve pipe (1), jacking block (3), precession nut (4), described chalk sleeve pipe (1) both sides have symmetrical fluting (2), described jacking block (3) is provided with hollow out (7), dowel (8), the outside diameter of hollow out (7) is greater than the external diameter of chalk sleeve pipe (1), inner top (9) diameter of jacking block (3) is less than the internal diameter of chalk sleeve pipe (1), the width of dowel (8) is less than the width of fluting (2), during installation, the dowel of jacking block is aimed at fluting, can be enclosed within chalk sleeve pipe, chalk sleeve pipe (1) afterbody is provided with tail cap (5), chalk (6) is sidelong into chalk sleeve pipe (1) from fluting, jacking block (3) is installed, the dowel of jacking block (3) (8) is aimed at fluting (2), be enclosed within chalk sleeve pipe (1), precession nut (4) is installed again, finally tail cap (5) is installed, precession nut (4) is rotated during use, jacking block (3) is driven to push away forward, the inner top (9) of jacking block (3) promotes chalk and advances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249342.2A CN103350590B (en) | 2013-06-12 | 2013-06-12 | Chalk protection sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249342.2A CN103350590B (en) | 2013-06-12 | 2013-06-12 | Chalk protection sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103350590A CN103350590A (en) | 2013-10-16 |
| CN103350590B true CN103350590B (en) | 2015-03-04 |
Family
ID=49307045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310249342.2A Active CN103350590B (en) | 2013-06-12 | 2013-06-12 | Chalk protection sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103350590B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415096A (en) * | 2021-07-02 | 2021-09-21 | 卢辉 | Telescopic device for placing fingernails |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2366283Y (en) * | 1999-02-03 | 2000-03-01 | 严丛茂 | Chalk with holder |
| CN1373050A (en) * | 2001-03-03 | 2002-10-09 | 刘卫平 | Propelling pencil |
| CN2843871Y (en) * | 2005-09-15 | 2006-12-06 | 林泓颜 | Chalk protection box |
| CN201158239Y (en) * | 2008-03-03 | 2008-12-03 | 杨文坚 | Portable chalk holder |
| CN102079197A (en) * | 2009-11-30 | 2011-06-01 | 上海市复兴高级中学 | Hand-protecting chalk sleeve capable of removing dust |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2989920B2 (en) * | 1991-04-10 | 1999-12-13 | 株式会社壽 | Rod-shaped feeding container and writing implement |
| JP4192280B2 (en) * | 1997-08-19 | 2008-12-10 | 株式会社資生堂 | Cosmetic containers, etc. |
| JPH11139470A (en) * | 1997-11-04 | 1999-05-25 | Kotobuki:Kk | Bar-shaped body push-out casing |
-
2013
- 2013-06-12 CN CN201310249342.2A patent/CN103350590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2366283Y (en) * | 1999-02-03 | 2000-03-01 | 严丛茂 | Chalk with holder |
| CN1373050A (en) * | 2001-03-03 | 2002-10-09 | 刘卫平 | Propelling pencil |
| CN2843871Y (en) * | 2005-09-15 | 2006-12-06 | 林泓颜 | Chalk protection box |
| CN201158239Y (en) * | 2008-03-03 | 2008-12-03 | 杨文坚 | Portable chalk holder |
| CN102079197A (en) * | 2009-11-30 | 2011-06-01 | 上海市复兴高级中学 | Hand-protecting chalk sleeve capable of removing dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103350590A (en) | 2013-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181218 Address after: 401120 No. 7, East Airport Road, Shuangfengqiao Street, Yubei District, Chongqing Patentee after: Chongqing Brilliant Aluminum Furniture Co.,Ltd. Address before: 311800 Jiangdong Primary School, Jiyang Street, Zhuji City, Zhejiang Province Patentee before: Yang Liuqing |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201113 Address after: 244000 Huayuan Road, Tongling, Anhui, No. 192 on the first floor Patentee after: Tongling Hailin Management Consulting Co.,Ltd. Address before: 401120 No. 7, East Airport Road, Shuangfengqiao Street, Yubei District, Chongqing Patentee before: Chongqing Brilliant Aluminum Furniture Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240625 Address after: Room 132, Room 70102, Xinglinggu Podium Building, Entrepreneurship Research and Development Park, No. 69 Jinye Road, High tech Zone, Xi'an City, Shaanxi Province, 710000 Patentee after: Xi'an Tengwei Computer System Co.,Ltd. Country or region after: China Address before: 244000 1st floor, 192 Huayuan Road, Tongling City, Anhui Province Patentee before: Tongling Hailin Management Consulting Co.,Ltd. Country or region before: China |