CN2123427U - Chalk holder - Google Patents

Abstract

The utility model relates to a chalk holder. A spring is used to clamp symmetrical holder bodies together for holding chalks, so that teacher with the chalk holder can write on a blackboard. The chalk holder prevents fingers and palms directly touching chalks, makes the skin of finger and palms be free from the erosion of lime, and avoids hands with chalk dust polluting textbooks, lesson-preparing notes, pocket, pen, etc. With convenient use, and comfortable hand feeling, the utility model not only provides a civilized teaching aid for teaching, but also provides a health care product for teachers.

Description

Chalk holder

Chalk presss from both sides, and is used for pressing from both sides a kind of teaching aid of chalk when being writing on the blackboard.

Writing on the blackboard is at present all directly held chalk with hand, and its main drawback is: chalk directly contacts with finger, palm, and skin is subjected to the corrosion of chalk dust, and is harmful to health; Owing to speckle with chalk dust on hand, cause easily that textbook is dirty, prepare lessons that notes are dirty, pocket is dirty, pen is dirty.

The utility model is intended to overcome above drawback for the teacher provides a kind of chalk anchor clamps, promotes the civilization teaching.

The utlity model has the clamp 1,2 of symmetry, spring 3.Its special character is clamp 1,2 to be stuck formation clip shape with spring 3.

The utility model is carved with ledge for chalk on blackboard 4, spring major trough 5 in the inboard of clamp 1,2, is carved with the secondary groove 6 of spring in the outside of clamp 1,2.

The utility model is stuck by the clamp 1,2 of the spring handle symmetry of band claw.According to spring property and important principles, earlier right hand thumb food two is referred to be placed on respectively outside the clip afterbody during use, again flicking to the inside, the clip mouth is opened, with left hand chalk is put in the ledge for chalk on blackboard, a thicker end points to the clip afterbody, suitably stay one section outside, just can hold the clamping plate book.Hold is determined according to the moulding of chalk clip.

When the present segment chalk uses up, press preceding method, allow chalk reveal one section and come out to get final product.

The utility model is with low cost, and is simple in structure, easy to use, holds when folder comfortable feel, can guarantee dustlessly on hand, protected teacher's physical and mental health from an aspect.

Accompanying drawing has been described an example of the present utility model.

Fig. 1 is an installation diagram of the present utility model;

Fig. 2 is the interior shape figure of the utility model clamp;

Fig. 3 is spring figure of the present utility model.

Symbol mark among the figure:

1,2--clamp; The 3--spring;

The 4--ledge for chalk on blackboard; 5--spring major trough;

The secondary groove of 6--spring.

Embodiment: make the utility model and divide three phases:

One, make clamp: cast out symmetrical clamp with injection molding machine, its inboard is carved with ledge for chalk on blackboard, spring major trough, is carved with the secondary groove of spring in the outside;

Two, make spring, also buyable by drawing;

Three, assembling: spring is placed in the spring major trough of clamp, by advancing the secondary groove of spring, it is supporting with it to get another piece clamp again, is finished product with the spring claw.

Claims (2)

1, the chalk anchor clamps have the clamp 1,2 of symmetry, spring 3.It is characterized in that: with spring 3 clamp 1,2 is stuck, forms the clip shape.

2, chalk folder according to claim 1 is characterized in that: be carved with ledge for chalk on blackboard 4, spring major trough 5 in the inboard of clamp 1,2, be carved with the secondary groove 6 of spring in the outside of clamp 1,2.

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