CN201456689U

CN201456689U - Chalk sheath with brush

Info

Publication number: CN201456689U
Application number: CN2009200812899U
Authority: CN
Inventors: 马久惠
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-31
Filing date: 2009-05-31
Publication date: 2010-05-12
Anticipated expiration: 2019-05-31

Abstract

The utility model discloses a chalk sheath with a brush, which comprises a cylinder, a spacer and a brush. A bayonet is in certain distance with one end of the cylinder, a step matched with the bayonet is arranged on the edge of the spacer, the spacer is fixed with the cylinder through the step and the bayonet, the cylinder is divided into two parts, and the brush is fixedly connected with the spacer. The chalk is inserted into the cylinder through a chalk inlet for writing. When in use, the hand is not contacted with the chalk directly and hands are kept clean; the brush has small area and facilitates the fine modification of drawings; the brush can be removed for cleaning and can be used repeatedly after drying.

Description

The pullover brush of chalk

Technical field

The utility model relates to a kind of teaching aid, relates in particular to the pullover brush of a kind of chalk.

Background technology

Chalk is an indispensable apparatus in the teaching, and a lot of problems is arranged in actual use: because hand directly contacts with chalk, inevitably be stained with chalk dust on hand, hand contacts with books then, the books that made chalk ash pollution again; Write or the picture process in usually need to revise, when revising slight part, the blackboard eraser area is too big, usually can wipe and not want to need the part of wiping to draw again again, it is bad to wipe effect, loses time.

The utility model content

Technical problem to be solved in the utility model provides the pullover brush of a kind of chalk, directly is fixed on the chalk, makes simple, easy to use.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

The pullover brush of a kind of chalk comprises cylinder, partition and brush, and partition is fixed on the cylinder inwall, and brush is connected with partition.

Described cylinder is a hollow cylinder, and the bayonet socket more than three or three is arranged.

Described bayonet socket is positioned at apart from the position of cylinder one end 1/10th, and the distance between the adjacent bayonet socket equates.

Described cylinder is than the diameter of a long end diameter less than the short end of cylinder.

Described brush is positioned at the short end of cylinder, and head length is longer than a short end than cylinder.

The long end of described cylinder can outwards turn down.

Described partition has the step that is complementary with bayonet socket on the edge.

The beneficial effects of the utility model are:

Hold barrel portion when writing, avoided hand directly to contact, can not catch chalk dust, also can not pollute books with chalk; Can wipe part to be revised with brush when needing to revise, need not spended time and get blackboard eraser; Because the brush area is little, can accurately wipe when the trickle modifications of needs such as picture; Brush can take out cleaning, and is reusable again after drying; Chalk is with after short, and bayonet socket can outwards turn down with the upper part, continues to use, and is very convenient; Material is easy to get, and is easy to make.

Description of drawings

Fig. 1 is a sectional view of the present utility model;

Mark and corresponding parts title among the figure: 1-cylinder; The 2-partition; The 3-brush; 4-chalk porch; The 5-bayonet socket.

The specific embodiment

Cylinder 1 long 100mm, thick 2mm, there are 4 bayonet sockets 5 inside, and bayonet socket 5 uses soft material with the long 90mm of upper part, the long 10mm of bayonet socket part below 5, adopt hard material, 5 distances of adjacent bayonet socket equate. soft material section diameter and chalk diameter at butt end are complementary, and less than the hard material section diameter. partition 2 diameters are identical with cylinder 1 internal diameter, three steps are evenly distributed on the partition edge, are complementary with bayonet socket 5; Partition 2 is fixed on the cylinder 1 by bayonet socket 5 and step, and brush 3 is fixed on the partition 2, and chalk inserted cylinder 1 from the chalk porch 4 of cylinder 1 when brush 3 long 30mm. used, can use after fixing, after chalk is with weak point, can outwards turn down cylinder 1 body, can continue to use.

Claims

1. the pullover brush of chalk is characterized in that, comprises cylinder (1), partition (2) and brush (3), and partition (2) is fixed on cylinder (1) inwall, and brush (3) is connected with partition (2).

2. the pullover brush of chalk as claimed in claim 1 is characterized in that described cylinder (1) is a hollow cylinder, and the bayonet socket (5) more than three or three is arranged.

3. the pullover brush of chalk as claimed in claim 2 is characterized in that described bayonet socket (5) is positioned at apart from the position of cylinder (1) one end 1/10th, and the distance between the adjacent bayonet socket (5) equates.

4. the pullover brush of chalk as claimed in claim 3 is characterized in that, described cylinder (1) is than the diameter of a long end diameter less than the short end of cylinder (1).

5. as claim 1 or the pullover brush of 3 described chalks, it is characterized in that described brush (3) is positioned at the short end of cylinder (1), brush (3) length is longer than a short end than cylinder (1).

6. the pullover brush of chalk as claimed in claim 3 is characterized in that, the long end of described cylinder (1) can outwards turn down.

7. the pullover brush of chalk as claimed in claim 1 is characterized in that, the step that is complementary with bayonet socket (5) is arranged on described partition (2) edge.