CN201566272U

CN201566272U - Retractable environmental protection chalk

Info

Publication number: CN201566272U
Application number: CN2009202137639U
Authority: CN
Inventors: 仰磊磊
Original assignee: SHANGHAI FENGXIAN DISTRICT YOUTH ACTIVITY CENTER
Current assignee: SHANGHAI FENGXIAN DISTRICT YOUTH ACTIVITY CENTER
Priority date: 2009-11-18
Filing date: 2009-11-18
Publication date: 2010-09-01
Anticipated expiration: 2019-11-18

Abstract

The utility model relates to a retractable environmental protection chalk, which relates to a chalk, and comprises a chalk (1), a retractable chalk sleeve (2) and a slider (3), wherein the chalk (1) is arranged in the inner portion of the chalk sleeve (2), and the slider (3) is arranged on the outer side of the chalk sleeve (2). The length of the chalk is freely controlled through arranging the slider on the retractable chalk sleeve (2). The retractable environmental protection chalk is not easy to be broken, saves energy, reduces the use cost, does not directly contact with a hand, and can protect the skin on the hands of teachers.

Description

Telescopic environmental protection chalk

Technical field:

The utility model relates to a kind of chalk, especially relates to a kind of telescopic environmental protection chalk.

Background technology:

Chalk be teachers every day at school the time institute indispensable, when general chalk uses, accidentally just be easy to fracture, it is not very easily just that chalk fractures that the back teachers use, because just the chalk that disconnects is thrown away, cause the resource serious waste, and since long-time with chalk, can bring damage to skin on hand.

The utility model content:

The purpose of this utility model provides telescopic environmental protection chalk, and it can freely control the length of chalk, is difficult for being fractureed, and energy savings reduces use cost, and makes hand directly not contact chalk, can play protection teacher skin on hand.

In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it is made up of chalk 1, the flexible pen cap 2, slider 3; Chalk 1 is arranged on the inside of the pen cap 2, and slider 3 is arranged on the outside of the pen cap 2.

The utility model is by being provided with the length that slider 3 is freely controlled chalk on the flexible pen cap 2.

The utlity model has following beneficial effect: can freely control the length of chalk, be difficult for being fractureed, energy savings reduces use cost, and makes hand directly not contact chalk, can play protection teacher skin on hand.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment:

Referring to Fig. 1, this specific embodiment by the following technical solutions: it is made up of chalk 1, the flexible pen cap 2, slider 3; Chalk 1 is arranged on the inside of the pen cap 2, and slider 3 is arranged on the outside of the pen cap 2.

This specific embodiment is by being provided with the length that slider 3 is freely controlled chalk on the flexible pen cap 2.

This specific embodiment can freely be controlled the length of chalk, is difficult for being fractureed, and energy savings reduces use cost, and makes hand directly not contact chalk, can play protection teacher skin on hand.

Claims

1. telescopic environmental protection chalk is characterized in that it is made up of chalk (1), the flexible pen cap (2), slider (3); Chalk (1) is arranged on the inside of the pen cap (2), and slider (3) is arranged on the outside of the pen cap (2).