CN2361488Y - Eraser capable of drawing circle - Google Patents

Abstract

The utility model relates to an eraser capable of drawing a circle, which belongs to the technical field of the group of cleaning devices of blackboards or stone boards of the subclass of articles for writing or drawing; auxiliary articles for writing or drawing of the class of office supplies; writing or drawing devices under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC). The utility model has the number of B43L21/00 and is composed of a scale ruler, a circle drawing hole, a bristle erasing seat, a sponge bristle eraser, a cloth bristle eraser, a board eraser body and a handle. The utility model is characterized in that the handle, the circle drawing hole and the scale ruler are arranged on the board eraser body. The utility model is the eraser capable of drawing a circle with practical value.

Description

A kind ofly draw round blackboard eraser

The utility model relates to a kind of round blackboard eraser of drawing.(IPC) belongs to operation Department of Transportation by International Patent Classification (IPC), printing branch, and the big class of drawing appliance office appliance is write or drawing article, the assistant product group of writing or draw, the cleaning device technical group field of blackboard or slabstone.Be numbered B43L 21/00.

At present, the technology about the cleaning device of blackboard or slabstone existing and that once had was all done very fruitful effort to people in the diversified demand of realia, and had made many outstanding designs and scheme.As being declared by Luo Yousong of 1996 Decrees of Patent Office of China, Granted publication number for CN2224100Y China Patent No. (ZL) is: No. 93247461.6 utility model title is the utility model patent of " dustless convenient blackboard wiper ", the technical scheme that is adopted.Cleaning device technical elements at blackboard or slabstone is a routine of great value invention, and it has solved the superior place of blackboard eraser aspect dust suction effectively.But still have some deficits, it also is difficult to solve simple in structure, easy to make, the problem that can make chi and draw circle.

The purpose of this utility model is to provide a kind of round blackboard eraser of drawing.Problem simple in structure to solve, easy to make, as to make chi and draw circle.

The purpose of this utility model is achieved in that this utility model is a kind of and draws round blackboard eraser.Mainly constitute by rule, picture circular hole, hair wiping seat, the wiping of sponge hair, the wiping of cloth hair, blackboard eraser body, handle.Its major part sponge hair is wiped, the cloth hair is wiped and selected for use by market.Blackboard eraser body, hair are wiped seat, a handle compression molding manufacturing of duroplasts.The main body of blackboard eraser of the present utility model is wiped seat, the wiping of sponge hair, the wiping of cloth hair and handle by blackboard eraser body, hair and is formed; The cloth hair is wiped peace is wiped seat built in hair core, its effect is the effect of wiping chalk dust, is that the sponge hair is wiped around the wiping of cloth hair, and the sponge hair is wiped peace on hair wiping seat, the effect of the main absorption of its effect chalk dust, hair wiping seat links to each other with the following of blackboard eraser body with the method for bonding.The handle peace is built in the front of blackboard eraser body, its effect be convenient to dominated by hand, in order to avoid chalk ash pollution is to finger, be shaped on hair in the back side of blackboard eraser body peace and wipe seat, peace is shaped on rule on the long limit of a rectangle of hair wiping seat, the effect of rule is to be used for tolerance and draw straight line usefulness, pacifies being shaped on many picture circular holes on the blackboard eraser body at the master scale point place of rule, can draw the circle that differs in size to improve multifunctionality of the present utility model.So just realized the purpose of this utility model.

The utility model has been compared two advantages and improvement with the technology of the cleaning device of original blackboard or slabstone;

The first, because the utility model has designed the picture circular hole in technical scheme, so solved the problem of utilizing blackboard eraser to come the picture circle effectively;

The second, because the utility model has designed rule in technical scheme, so solved the problem of utilizing blackboard eraser to measure effectively.Thereby just can more effectively solve simple in structure, easy to make, the problem that can make chi and draw circle.

Accompanying drawing provides structural representation of the present utility model:

Fig. 1: be the structural representation of facing upward of the present utility model:

Fig. 2: be cross-sectional view of the present utility model:

The numbering of parts illustrates in the schematic diagram:＜1〉rule＜2〉picture circular hole＜3〉hair wiping seat＜4〉sponge hairs wiping＜5〉cloth hairs wiping＜6〉blackboard eraser body＜7〉handle

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

As shown in the figure, the utility model is a kind of draws round blackboard eraser.Mainly by rule＜1 〉, draw circular hole＜2, hair wipes seat＜3, the sponge hair wipes＜4, the cloth hair wipes＜5, blackboard eraser body＜6, handle＜7 constitute.The main body of blackboard eraser of the present utility model is by blackboard eraser body＜6 〉, hair wipes seat＜3, the sponge hair wipes＜4, the cloth hair wipes＜5 and handle＜7 form; The cloth hair wipes＜5〉peace wipes seat＜3 built in hair core, its effect is the effect of wiping chalk dust, wipe＜5 at the cloth hair〉around be that the sponge hair wipes＜4, the sponge hair wipes＜4〉pacify built in hair and wipe seat＜3 on, the effect of the main absorption of its effect chalk dust, hair is wiped seat＜4〉with the method and blackboard eraser body＜6 of bonding following linking to each other.Handle＜7〉peace built in blackboard eraser body＜6 the front, its effect be convenient to dominated by hand, in order to avoid chalk ash pollution is to finger, in blackboard eraser body＜6〉back side peace be shaped on hair and wipe seat＜3, hair is wiped seat＜3〉the long limit of a rectangle on peace be shaped on rule＜1, rule＜1〉effect be to be used for tolerance and draw straight line and use, in rule＜1〉the blackboard eraser body at master scale point place on peace be shaped on many picture circular holes＜2, can draw the circle that differs in size to improve multifunctionality of the present utility model.So just realized the purpose of this utility model.Thereby just can solve simple in structure, easy to make, the problem that can make chi and draw circle.

Below by embodiment, the utility model is done more detailed description:

Embodiment 1, in use, if when the needing of picture circle arranged, can be with blackboard eraser body＜6〉face upward upwards, utilize one and draw circular hole＜2 be the center of circle, with rule＜1〉the adjustable length at place is radius, is that circular path is made a circle with another circle center hole.Thereby just can realize the purpose of this utility model.

Realize that preferred plan of the present utility model is is material with duroplasts, hair wiping, sponge, cloth, utilize the basic equipment of general teaching aid factory, take one time punching molded, combination is produced by batch, demand with supply culture and education circle so just can realize practical value of the present utility model and economic worth better.

Claims (1)

1. can draw round blackboard eraser for one kind, it is by rule＜1 〉, draw circular hole＜2, hair wipes seat＜3, the sponge hair wipes＜4, the cloth hair wipes＜5, blackboard eraser body＜6, handle＜7 constitute.It is characterized in that picture circular hole＜2〉pacify built in blackboard eraser body＜6 on.

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