CN205058944U

CN205058944U - Chalk cover with chucking device

Info

Publication number: CN205058944U
Application number: CN201520703195.6U
Authority: CN
Inventors: 丁顺昌
Original assignee: CHANGGE RUICHANG MACHINERY Co Ltd
Current assignee: CHANGGE RUICHANG MACHINERY Co Ltd
Priority date: 2015-09-13
Filing date: 2015-09-13
Publication date: 2016-03-02
Anticipated expiration: 2025-09-13

Abstract

The utility model relates to a teaching articles for use, the name is chalk cover with chucking device, including sleeve pipe and piston, the cover intraduct has the cavity, and the cavity is the structure that coordinates the chalk, the tip of piston the inside first fastener still has, first fastener have that a plurality of reeds that turn back constitute around being, a plurality of reeds enclose into a circular shape cavity, the cavity is the structure that cooperates the chalk tip the sleeve pipe in the middle of inside have a plurality of second fasteners, the second fastener be that a plurality of reeds of turning back are formed, a plurality of reeds enclose into a circular shape cavity, the cavity is the structure that coordinates in the middle of the chalk, such chalk cover has can the chucking chalk, the chalk is difficult for the landing advantage the sleeve pipe in the middle of inside have a plurality of second fasteners, the second fastener be that a plurality of reeds of turning back are constituteed, a plurality of reeds enclose into a circular shape cavity, the cavity is the structure that cooperates in the middle of the chalk, has the better advantage of chucking effect.

Description

There is the chalk sleeve of gripping mechanism

Technical field

The utility model relates to realia, specifically relates to chalk sleeve.

Background technology

Chalk sleeve comprises sleeve pipe and piston, and inside pipe casing has cavity, and cavity is the structure coordinating chalk, and during use, chalk is inside cavity, and piston runs forward and can promote chalk release sleeve pipe; In prior art, the afterbody of piston does not stick the parts of chalk, like this, chalk just easy from sleeve pipe out, come off sleeve pipe landing, has awkward shortcoming.

Summary of the invention

The purpose of this utility model is exactly for above-mentioned shortcoming, provides a kind of chalk sleeve that can clamp the not easily landing of chalk, chalk---there is the chalk sleeve of gripping mechanism.

The technical solution of the utility model is achieved in that the chalk sleeve with gripping mechanism, comprise sleeve pipe and piston, inside pipe casing has cavity, cavity is the structure coordinating chalk, it is characterized in that: the end inside described piston also has the first fastener, the first described fastener has multiple reed composition turned back around, and multiple reed surrounds a circular cavity, and cavity is the structure coordinating chalk small end.

Say to have multiple second fastener in described sleeve pipe inside middle further, the second described fastener is that multiple reed turned back forms, and multiple reed surrounds a circular cavity, and cavity coordinates the structure in the middle of chalk.

The beneficial effects of the utility model are: such chalk sleeve has the advantage that can clamp the not easily landing of chalk, chalk;

Have multiple second fastener in described sleeve pipe inside middle, the second described fastener is that multiple reed turned back forms, and multiple reed surrounds a circular cavity, and cavity coordinates the structure in the middle of chalk, has the advantage of clamping better effects if.

Accompanying drawing explanation

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

Wherein: 1, sleeve pipe 2, piston 3, first fastener 4, chalk 5, second fastener.

Detailed description of the invention

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

As shown in Figure 1, there is the chalk sleeve of gripping mechanism, comprise sleeve pipe 1 and piston 2, inside pipe casing has cavity, cavity is the structure coordinating chalk 4, it is characterized in that: the end inside described piston also has the first fastener 3, and the first described fastener has multiple reed composition turned back around, multiple reed surrounds a circular cavity, and cavity is the structure coordinating chalk 4 small end.

Say to have multiple second fastener 5 in described sleeve pipe inside middle further, the second described fastener is that multiple reed turned back forms, and multiple reed surrounds a circular cavity, and cavity coordinates the structure in the middle of chalk.

When the utility model uses, can chalk 4 be placed in cavity, stick chalk with the first fastener and the second fastener, there is effect of the present utility model.

The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed in the scope of the claims of the present utility model.

Claims

1. there is the chalk sleeve of gripping mechanism, comprise sleeve pipe and piston, inside pipe casing has cavity, cavity is the structure coordinating chalk, it is characterized in that: the end inside described piston also has the first fastener, the first described fastener has multiple reed composition turned back around, and multiple reed surrounds a circular cavity, and cavity is the structure coordinating chalk small end.

2. chalk sleeve according to claim 1, it is characterized in that: in described sleeve pipe inside middle, there is multiple second fastener, the second described fastener is multiple reed composition turned back, and multiple reed surrounds a circular cavity, and cavity coordinates the structure in the middle of chalk.