CN203681055U

CN203681055U - Chalk cap

Info

Publication number: CN203681055U
Application number: CN201320814825.8U
Authority: CN
Inventors: 王善澎
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-12
Filing date: 2013-12-12
Publication date: 2014-07-02
Anticipated expiration: 2023-12-12

Abstract

The utility model relates to a teaching article, in particular to a chalk cap which comprises a cylinder with an opened end, wherein the cylinder is internally provided with a piston; a piston rod penetrates out from the bottom of the cylinder; an elastic clamp is connected to the opened end of the cylinder; the elastic clamp is formed by a bent elastic strip; two ends of the elastic clamps are intersected and respectively provided with a bent part. A circle of protecting cover made of a soft material is arranged at a hand-held part on the cylinder. When the chalk cap is used, hands do not need to be in direct contact with chalk, thereby achieving cleanliness; the chalk can be clamped by the elastic clamp on the chalk cap, only one section of the chalk is clamped when the chalk cap is used and the other part is positioned inside the cylinder, so that the chalk is not broken, moreover even when the chalk is nearly used up, the chalk can be continuously used, so that the waste is greatly reduced.

Description

A kind of Chalk cover

(1) technical field

The utility model relates to a kind of realia, particularly a kind of Chalk cover.

(2) background technology

At present, the chalk of selling on market, when structure is come, more elongated, easily disconnected when use, and hand-held chalk while using, chalk powder drops on hand, and the hand of can making dirty, and after chalk used short hand-heldly incessantly will abandon, and causes waste.

(3) summary of the invention

The utility model is in order to make up the defect of prior art, and a kind of saving, clean Chalk cover are provided.

The utility model is achieved by the following technical solution:

A kind of Chalk cover, it is characterized in that: it comprises the cylinder of an end opening, in cylinder, be provided with piston, piston rod passes from bottom of cylinder, the openend of described cylinder is connected with Flexible clamp, described Flexible clamp is formed by an elastic strip bending, and there is respectively a dogleg section at its two ends after intersecting.

On described cylinder, the place of holding is provided with the protective cover that a circle soft material is made.

The beneficial effects of the utility model are:

While using the utility model, hand need not directly contact chalk, therefore clean, and Flexible clamp on the pen cap clamps chalk, when use, only clamp one section just passable, remainder is positioned at cylinder, therefore can not fracture, and what use is very short, also can continue to use, therefore greatly reduce waste.

(4) brief description of the drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is sectional structure schematic diagram of the present utility model;

Fig. 2 is plan structure schematic diagram of the present utility model;

Fig. 3 is the right TV structure schematic diagram of Flexible clamp.

In figure, 1 cylinder, 2 pistons, 3 piston rods, 4 Flexible clamps, 41 elastic strips, 42 dogleg section, 5 protective covers.

(5) detailed description of the invention

Accompanying drawing is specific embodiment of the utility model.As shown in Figure 1 and Figure 2, this kind of Chalk cover, the cylinder 1 that comprises an end opening, is provided with piston 2 in cylinder 1, piston rod 3 passes from cylinder 1 bottom, the openend of cylinder 1 is connected with Flexible clamp 4, Flexible clamp 4 is formed by elastic strip 41 bendings, and wherein there is gap one end, and after the other end forms intersection through gap, there is respectively a dogleg section 42 at two ends, when clutch two dogleg section 42 make they near time, it is large that circle that elastic strip 41 forms becomes.The place of holding on cylinder 1 is provided with the protective cover 5 that a circle soft material is made.

When use; chalk is filled in to cylinder 1 from Flexible clamp 4; only stay one section outside Flexible clamp 4; hold sleeve 1, protective cover 5 is ridden on hand, just can write; when be exposed at outside Flexible clamp 4 too short cannot the writing of part time; pinch Flexible clamp 4 chalk is unclamped, promote piston rod 3 by extrapolated chalk one section, just can continue to have used

Except technical characterictic described in description, all the other technical characterictics are those skilled in the art's known technology.

Claims

1. a Chalk cover, it is characterized in that: it comprises the cylinder (1) of an end opening, in cylinder (1), be provided with piston (2), piston rod (3) passes from cylinder (1) bottom, the openend of described cylinder (1) is connected with Flexible clamp (4), described Flexible clamp (4) is formed by an elastic strip (41) bending, and there is respectively a dogleg section (42) at its two ends after intersecting.

2. Chalk cover according to claim 1, is characterized in that, on described cylinder (1), the place of holding is provided with the protective cover (5) that a circle soft material is made.