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Chalk sleeve

A technology of pen caps and chalk, applied in printing, writing utensils, writing connectors, etc., can solve the problems of dirty hands, waste, discarding, etc., and achieve the effect of reducing waste

Inactive Publication Date: 2015-06-17
王善澎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the chalk sold on the market is relatively slender in terms of structure, and it is easy to break when used. When using the chalk, the chalk powder falls on the hand, which will dirty the hands. If you can't hold it, you will throw it away, causing waste

Method used

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Embodiment Construction

[0014] Accompanying drawing is the specific embodiment of the present invention. like figure 1 , figure 2 As shown, this kind of chalk pen cover includes a cylinder 1 with an open end, a piston 2 is arranged in the cylinder 1, a piston rod 3 passes through the bottom of the cylinder 1, an elastic clip 4 is connected to the open end of the cylinder 1, and the elastic clip 4 is connected to the open end of the cylinder 1. The clip 4 is bent from an elastic strip 41, one end of which has a gap, and the other end passes through the gap to form a cross, and a bending part 42 is respectively arranged at the two ends. When the two bending parts 42 are pinched tightly to make them approach, the elastic The circle formed by the bars 41 becomes larger. The handle on the cylinder 1 is provided with a protective cover 5 made of a circle of soft material.

[0015] During use, the chalk is inserted into the cylinder 1 from the elastic clip 4, and only a section is left outside the elast...

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PUM

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Abstract

The invention relates to teaching supplies, in particular to a chalk sleeve. The chalk sleeve comprises a cylinder with an opening in one end; a piston is arranged in the cylinder, and a piston rod penetrates the bottom of the cylinder; and the opening end of the cylinder is connected with an elastic clamp. The elastic clamp is formed by bending an elastic strip, and the two ends of the elastic strip are intersected and then are each provided with a bending portion; and a protection cover made of a ring of soft materials is arranged at the held position of the cylinder. When the chalk sleeve is used, the hand does not need to be in direct contact with chalk, and therefore cleanness is achieved. The elastic clamp on the chalk sleeve clamps the chalk, and in the use process, the chalk sleeve only clamps one segment, and the rest of the chalk is located in the cylinder, so that the chalk cannot be broken. Even if the chalk is used to be very short, the chalk also can be continuously used, and therefore waste is greatly reduced.

Description

(1) Technical field [0001] The invention relates to a teaching article, in particular to a chalk pen case. (2) Background technology [0002] At present, the chalk sold on the market is relatively slender in terms of structure, and it is easy to break when used. When using the chalk, the chalk powder falls on the hand, which will dirty the hands. If you can't hold it, it will be discarded, causing waste. (3) Contents of the invention [0003] In order to make up for the defects of the prior art, the present invention provides an economical and clean chalk pen case. [0004] The present invention is achieved through the following technical solutions: [0005] A kind of chalk pencil case, it is characterized in that: it comprises a cylinder with an open end, a piston is arranged in the cylinder, the piston rod passes through the bottom of the cylinder, an elastic clip is connected to the open end of the cylinder, and the elastic clip It is formed by bending an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K23/016
CPCB43K23/016
Inventor 王善澎
Owner 王善澎