CN202071559U - Novel chalk jacket - Google Patents

Novel chalk jacket Download PDF

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Publication number
CN202071559U
CN202071559U CN2011200961000U CN201120096100U CN202071559U CN 202071559 U CN202071559 U CN 202071559U CN 2011200961000 U CN2011200961000 U CN 2011200961000U CN 201120096100 U CN201120096100 U CN 201120096100U CN 202071559 U CN202071559 U CN 202071559U
Authority
CN
China
Prior art keywords
chalk
jacket
jacket body
opening
length
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
Application number
CN2011200961000U
Other languages
Chinese (zh)
Inventor
詹恩添
Original Assignee
詹恩添
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 詹恩添 filed Critical 詹恩添
Priority to CN2011200961000U priority Critical patent/CN202071559U/en
Application granted granted Critical
Publication of CN202071559U publication Critical patent/CN202071559U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a novel chalk jacket, which comprises a jacket body with bidirectional openings. One opening end of the jacket body is embedded with a push plug threadedly connected with the opening end of the jacket body and the other opening end of the jacket body is equipped with a plurality of stripe-shaped groove holes for the extension or the adduction of the opening of the jacket body. The outside of the jacket body is equipped with a locking collar for locking the extended opening of the jacket body. The chalk jacket can be used by being sleeved on the outside of the chalk, so that hands and clothes are prevented from being polluted by dusts. In addition, waste chalk heads can be collected by utilizing the chalk jacket so as to prevent the waste of chalk heads.

Description

A kind of novel chalk casing
Technical field
The utility model relates to chalk sleeve, particularly a kind of novel chalk casing.
Background technology
Chalk is prevailing teaching aid, and in use, the length of chalk just can constantly shorten, and a lot of teachers or student just can throw away rest parts because of holding inconvenience using certain-length, so just can cause the waste of a lot of chalks.And because chalk all is that lime is done, a lot of dust all can be stained with to hand when holding chalk, not only skin are had certain injury, be to use the rear portion in time to wash one's hands and also dust can be stained with on clothes or other article, and are very unhygienic.
Summary of the invention
The purpose of this utility model provides a kind of discarded chalk can the utilization again, saves the chalk resource, and uses the novel chalk casing of health.
Described a kind of novel chalk casing comprises the body of a two-way opening, body wherein an openend be embedded a plunger, and be threaded with plunger, the other end of body offers a plurality of strip slotted eyes that make outer of body opening or interior receipts, is provided with one in the cover external body and is used for the external locking collar that opens mouth of lock sleeve.
The length of described strip slotted eye is the 1/4-1/3 of cover body length.
The utility model can be used to be set in chalk to be used outward, prevents from dust to be stained with to hand or on the clothing, to be can also be used to discarded chalk head is collected, and reuses, and avoids the waste of chalk head.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is user mode figure of the present utility model.
Among the figure: the 1-body, the 2-plunger, 3-locks the collar, 4-strip slotted eye, 5-chalk.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing, among Fig. 1, described a kind of novel chalk casing, it is characterized in that: described chalk sleeve comprises the body 1 of a two-way opening, body 1 wherein an openend be embedded a plunger 2, and be threaded with plunger 2, the other end of body 1 offers a plurality of body 1 openings that make and opens outward or the strip slotted eyes 4 of interior receipts, is provided with one in body 1 outside and is used to lock the locking collar 3 that opens mouth body 1 outside.
The length of described strip slotted eye 4 is the 1/4-1/3 of body 1 length.
Chalk or chalk head can be packed into during use in the body 1, rotate plunger 2 then, promote chalk 5, because the chalk outlet end of body 1 is provided with a plurality of strip slotted eyes 4 that make outer of body 1 opening or interior receipts, when chalk 5 arrived outlet, body 1 port of export just can be opened outward, when waiting chalk 5 to stretch out certain-length (the normal length of using), to lock the collar 3 and slide into the outer opening part of opening, and make outer dehiscing draw in and lock chalk is fixed; When using length not enough, will lock body 1 and unclamp, repeat above-mentioned action, just can continue to use.

Claims (2)

1. novel chalk casing, it is characterized in that: described chalk sleeve comprises the body (1) of a two-way opening, body (1) wherein an openend be embedded a plunger (2), and be threaded with plunger (2), the other end of body (1) offers a plurality of body (1) openings that make and opens outward or the strip slotted eye (4) of interior receipts, is provided with one in body (1) outside and is used to lock the locking collar (3) that opens outside the body (1) mouthful.
2. a kind of novel chalk casing according to claim 1 is characterized in that: the length of described strip slotted eye (4) is the 1/4-1/3 of body (1) length.
CN2011200961000U 2011-04-02 2011-04-02 Novel chalk jacket Expired - Fee Related CN202071559U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200961000U CN202071559U (en) 2011-04-02 2011-04-02 Novel chalk jacket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200961000U CN202071559U (en) 2011-04-02 2011-04-02 Novel chalk jacket

Publications (1)

Publication Number Publication Date
CN202071559U true CN202071559U (en) 2011-12-14

Family

ID=45109669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200961000U Expired - Fee Related CN202071559U (en) 2011-04-02 2011-04-02 Novel chalk jacket

Country Status (1)

Country Link
CN (1) CN202071559U (en)

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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: 20111214

Termination date: 20120402