CN202934988U - Finger-saving chalk - Google Patents
Finger-saving chalk Download PDFInfo
- Publication number
- CN202934988U CN202934988U CN 201220591380 CN201220591380U CN202934988U CN 202934988 U CN202934988 U CN 202934988U CN 201220591380 CN201220591380 CN 201220591380 CN 201220591380 U CN201220591380 U CN 201220591380U CN 202934988 U CN202934988 U CN 202934988U
- Authority
- CN
- China
- Prior art keywords
- chalk
- base
- finger
- saving
- cylinder
- 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 belongs to the field of study articles, in particular relates to a finger-saving chalk and aims to solve the problem that the chalk is in direct contact with fingers. According to the main technical scheme, the finger-saving chalk comprises a base, a cylinder movably connected with the base, and a chalk, wherein the chalk is movably arranged in the cylinder connected with the base. By using the finger-saving chalk, the fingers are effectively prevented from being injured, and the insanitary is also solved.
Description
Technical field
The utility model belongs to a kind of study article field, is specifically related to a kind of chalk of not hindering hand.
Background technology
Chalk is the instrument that widely uses in daily life, generally is used for book and writes on the blackboard.The chalk in ancient times is made with natural chalk usually, but multiplex other material replaces now.The composition of chalk is a kind of white depositions of calcium sulfate, is not easy to be decomposed, and particle is larger than dust.Now, the chalk of domestic use mainly contains two kinds of common chalk and dust-free chalks, and its main component is calcium carbonate (lime stone) and calcium sulfate (gypsum), or contains a small amount of calcium oxide.Be all often directly to pick up chalk, especially teacher during use, said fullly on hand after class, not only unhygienic but also unclean, hand is hindered in long-term use very much.
Summary of the invention
The purpose of this utility model is the problem that exists in use for existing chalk and a kind of chalk of not hindering hand easy to use, clean, sanitary is provided.
The technical scheme that adopts for achieving the above object is: a kind of chalk of not hindering hand, the cylinder, the chalk that comprise base, be flexibly connected with base, described chalk propelling be arranged on be connected with base tin in.
Compared with prior art, due to the utility model, chalk being arranged in the cylinder that is flexibly connected with base, pastly going out to twist one section with one section, is to hold base in use, and chalk does not directly contact with hand, and the chalk that effectively prevents is hindered hand, also antihygienic problem.
Description of drawings
Fig. 1 is structural representation of the present utility model;
The specific embodiment
As shown in Figure 1: a kind of chalk of not hindering hand, the cylinder 3, the chalk 2 that comprise base 1, be flexibly connected with base, described chalk propelling be arranged on is connected with base tin in.
The utility model is back-outed chalk one section in use, holds base, gets final product, and is finished one section and back-outs one section again.
Claims (1)
1. chalk of not hindering hand is characterized in that: the cylinder (3), the chalk (2) that comprise base (1), be flexibly connected with base, described chalk propelling be arranged on be connected with base tin in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591380 CN202934988U (en) | 2012-11-09 | 2012-11-09 | Finger-saving chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591380 CN202934988U (en) | 2012-11-09 | 2012-11-09 | Finger-saving chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934988U true CN202934988U (en) | 2013-05-15 |
Family
ID=48319244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220591380 Expired - Fee Related CN202934988U (en) | 2012-11-09 | 2012-11-09 | Finger-saving chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934988U (en) |
-
2012
- 2012-11-09 CN CN 201220591380 patent/CN202934988U/en not_active Expired - Fee Related
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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: 20130515 Termination date: 20131109 |