CN201390049Y

CN201390049Y - Resource-saving chalk

Info

Publication number: CN201390049Y
Application number: CN200920021546U
Authority: CN
Inventors: 孙静静
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-01-27
Anticipated expiration: 2019-04-22

Abstract

The utility model provides a resource-saving chalk, which comprises a cone frustum-shaped chalk body (1). The thick end of the chalk body (1) is provided with a cone frustum-shaped concave pit (2), and the concave pit (2) is suitable for sleeving the thin end of the chalk body (1). When the chalk is used close to the concave pit, the thin end of another chalk can be inserted into the concave pit, and through the alternate recycle, the chalk end cannot occur, the chalk is effectively and fully utilized, and the chalk resources are saved.

Description

The economizing type chalk

(1), technical field

The utility model relates to a kind of chalk, specifically a kind of economizing type chalk.

(2), background technology

Existing chalk is only being used remainingly when terminal, is commonly called as " chalk head ", because bad taking generally just thrown away. and so just cause in the school a large amount of chalk heads to waste, can not satisfy the requirement of saving.

(3), utility model content

Technical problem to be solved in the utility model is, a kind of economizing type chalk is provided, and the chalk head can be used in combination energy savings.To overcome the defective of present chalk.

In order to solve this technical problem, the utility model has adopted following technical scheme:

A kind of economizing type chalk comprises the chalk main body of truncated conical shape, and it is characterized in that: the butt end of chalk main body offers round table-like pit, and the size of pit is fit to the thin end of socket chalk main body.

Good effect of the present utility model is: when chalk uses position near pit, the thin end of another chalk is inserted in the pit, alternate cycles just can not produce " chalk head " like this, effectively chalk is made full use of, and has saved the chalk resource.

(4), description of drawings

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

(5), the specific embodiment

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

As shown in Figure 1, this example comprises the chalk main body 1 of truncated conical shape, is provided with pit 2 in the butt end of chalk main body 1, and the shape of pit 2 also is round table-like, and size is suitable for installing the thin end of chalk main body 1, and require should thin end again can be in pit 2 play.

During use, earlier the thin end from chalk begins usefulness, when the position of using near pit 2, the thin end of another chalk is inserted in the pit 2 just can uses.

Claims

1, a kind of economizing type chalk comprises the chalk main body (1) of truncated conical shape, and it is characterized in that: the butt end of chalk main body (1) offers round table-like pit (2), and the size of pit (2) is fit to the thin end of socket chalk main body (1).