CN201979879U - Chalk sleeve - Google Patents

Abstract

The utility model discloses a chalk sleeve relating to the field of stationeries. The chalk sleeve consists of a circular tube, and a sponge lining fixed on the inner wall of the circular tube. The length of the sponge lining is same as that of the circular tube. When the chalk sleeve is in use, a whole piece of chalk or a chalk head is sleeved in from one end of the chalk sleeve; as the sponge lining has certain elasticity, both the whole chalks and the smaller chalk head are slightly clamped in the chalk sleeve; and then only by slight force, one piece of chalk can be pushed towards the inner part of the chalk sleeve, later the chalk is connected with another piece of chalk, and the chalk is continuously pushed towards the inner part of the chalk sleeve until one chalk is exposed from the other end of the chalk sleeve. Therefore, people can write with the chalk by handholding the chalk sleeve. With the chalk sleeve, the smaller chalk heads can be kept on use well, in addition, fingers are prevented from directly contacting with the chalk in writing. The chalk sleeve is simple in structure and convenient for use ,and can be made from materials such as plastics and the like.

Description

The chalk sleeve pipe

Technical field:

The utility model relates to the stationery field, and concrete is a kind of chalk sleeve pipe, the chalk sleeve pipe in especially a kind of belt material.

Background technology:

At present, in known work such as teach, give lectures, need to use chalk to write on blackboard often, chalk is easy to use, easy-to-write and erasable.Bring great convenience for people's work and study.But, when people directly hold chalk and write with finger, when chalk uses very in short-term, finger just is difficult to hold chalk and has write normally, simultaneously, powder on the chalk directly is infected with on the finger, also can cause certain pollution to human body, and this has brought certain deficiency with regard to the use of giving chalk.

Summary of the invention:

In order to overcome the deficiency that existing chalk in use exists, the utility model provides a kind of chalk sleeve pipe, this chalk sleeve pipe not only can make complete with conventional the same use of chalk of chalk, but also can use the starch nib to write easily, simultaneously, also avoided chalk to contact with the direct of human body.The technical scheme that its technical problem that solves the utility model adopts is:

Described in the utility model is a kind of chalk sleeve pipe, is made of round tube and sponge lining, is fixed with sponge lining on the round tube inwall.The length of sponge lining and the equal in length of round tube.

During use, whole chalk or chalk head are packed into from an end of chalk sleeve pipe, because sponge lining has certain elasticity, no matter is the concentric reducer of whole chalk, still less chalk head is in the chalk sleeve pipe, all can be squeezed lightly and be clamped, at this moment, a little firmly chalk can be advanced in the chalk sleeve pipe, constantly connect other chalks thereafter, continuation advances chalk in the chalk sleeve pipe, expose until the other end of chalk from the chalk sleeve pipe.Like this, people just can hold the chalk sleeve pipe and use chalk to write.

The beneficial effects of the utility model are:

Use the chalk sleeve pipe, not only can make less chalk head continue to be used well, and finger contacts with the direct of chalk when having avoided writing, and has stopped the pollution of chalk to human body.Chalk sleeve pipe light weight is full of, and is simple in structure, easy to use, with low cost.The chalk sleeve pipe can adopt materials such as slim rigid plastics to make.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the schematic diagram of the utility model when not packing chalk into;

Fig. 2 is a schematic top plan view of the present utility model;

Fig. 3 is the schematic diagram of the utility model when packing chalk into.

In the drawings: 1 chalk sleeve pipe, 2 sponge lining, 3 chalks.

The specific embodiment:

Chalk 3 is packed into by an end of chalk sleeve pipe 1, because sponge lining 2 has certain elasticity, chalk 3 is squeezed lightly in chalk sleeve pipe 1 and is clamped, at this moment, a little firmly chalk 3 can be advanced in chalk sleeve pipe 1, constantly connect other chalks 3, continue chalk 3 is advanced in chalk sleeve pipe 1, expose until the other end of chalk 3 from chalk sleeve pipe 1 thereafter.At this moment, people just can hold the chalk sleeve pipe and use chalk 3 to write.

Claims (2)

1. a chalk sleeve pipe is made of round tube and sponge lining, it is characterized in that: be fixed with sponge lining on the round tube inwall.

2. chalk sleeve pipe according to claim 1 is characterized in that: the length of sponge lining and the equal in length of round tube.

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