CN203727063U

CN203727063U - Matts brush capable of drawing dotted lines

Info

Publication number: CN203727063U
Application number: CN201420105480.3U
Authority: CN
Inventors: 白德霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-10
Filing date: 2014-03-10
Publication date: 2014-07-23
Anticipated expiration: 2024-03-10

Abstract

The utility model relates to a matts brush capable of drawing dotted lines. The matts brush capable of drawing the dotted lines comprises a brush body and a brush handle, wherein the brush handle is arranged on the top of the brush body; two counter bored holes are respectively formed in two ends of the bottom of the brush body; chalks are arranged in the counter bored holes and are used for drawing outer frames of matts; a groove is formed in the middle of the bottom of the brush body; a sliding hole is formed in the bottom of the brush body and is positioned on one side of the groove; a friction wheel is arranged in the groove and is connected with a cam in the brush body through a rotating shaft; the rotating shaft penetrates in a side wall of the groove, and is arranged on the side wall of the groove through a bearing; and sleeves are arranged on two sides of the bearing. The outline of the cam is in contact with one end of an ejector rod; a projection is arranged in the middle of a side surface of the ejector rod; springs sleeve the other end of the ejector rod; one end of the spring is fixed on the projection; the other end of the spring is in contact with the top of the brush body; the ejector rod is fixedly connected with a pen sleeve; a chalk is arranged in the pen sleeve; and the pen sleeve is arranged in the sliding hole. The friction wheel rotates to drive the cam to rotate; and a cam and ejector rod mechanism drives the pen sleeve to move back and forth under the action of the spring, so that the dotted lines in the middles of the matts can be drawn.

Description

Can draw the matts brush of dotted line

Technical field

The utility model relates to a kind of language teaching equipment, is specifically related to a kind of three line brushes of drawing matts on blackboard.

Background technology

The writing Chinese characters of often need to demonstrating in matts when Chinese language teacher imparts knowledge to students, when drawing matts, will be with the ruler picture of line one by one, pretty troublesome like this, lose time, for addressing this problem, three lines brushes of existing picture matts, comprise brush holder and brush body, and brush body is inner parallel is equipped with three chalk sleeves, distance between three chalk sleeves is identical, by laterally and vertically moving and draw matts, but the matts drawing is like this all solid line, after writing Chinese characters, similar to the stroke of Chinese character, affect student recognizing of Chinese character read.

Summary of the invention

The utility model, for the deficiencies in the prior art, provides a kind of matts brush that can draw dotted line.

The utility model is to utilize following technological means to realize:

The brush holder that comprises brush body and brush body top, the two ends of brush body bottom surface have counterbore, detail pen is housed in counterbore, the centre of brush body bottom surface has groove, there is slide opening bottom surface in a side of groove, one friction pulley is installed in groove, friction pulley connects the cam in brush body by rotating shaft, profile contact push rod one end of cam, and push rod other end cover has spring, middle part, push rod side has projection, it is upper that one end of spring is fixed on projection, the end face of other end contact brush body, and push rod is fixedly connected with a pen cap, detail pen is housed in the pen cap, is arranged in slide opening.

The optimal way of such scheme, rotating shaft is arranged on by bearing on the sidewall of groove, the both sides installing sleeve of bearing.

The optimal way of such scheme, detail pen is chalk.

The utlity model has friction pulley, in use friction pulley contact blackboard, the rotation band moving cam of friction pulley rotates, cam ejection pin mechanism seesaws the pen cap under the effect of spring, middle stroke goes out dotted line, and the line in the middle of matts is dotted line like this, avoids the interference to Chinese-character stroke.

Accompanying drawing explanation

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

Wherein, 1-brush body, 101-brush holder, 102-groove, 2-counterbore, 3-chalk, 4-friction pulley, 5-cam, 6-push rod, 7-spring, the 8-pen cap.

The specific embodiment

The matts brush that can draw dotted line as shown in Figure 1, comprises brush body 1 and brush holder 101, and handle 101 is located at the top of brush body 1, and the two ends of brush body 1 bottom surface respectively have a counterbore 2, and chalk 3 is housed in counterbore 2, is used for the outer rim of picture matts.

The centre of brush body 1 bottom surface has groove 102, there is slide opening bottom surface in a side of groove 102, interior installation one friction pulley 4 of groove 102, friction pulley 4 connects the cam 5 in brush body 1 by rotating shaft, rotating shaft is through the sidewall of groove 102, by bearing, be arranged on the sidewall of groove 102 the both sides installing sleeve of bearing.

Profile contact push rod 6 one end of cam 5, push rod 6 middle parts, side have projection, and push rod 6 other end covers have spring 7, it is upper that one end of spring 7 is fixed on projection, the end face of other end contact brush body 1, and push rod 6 is fixedly connected with a pen cap 8, chalk 3 is housed in the pen cap 8, and the pen cap 8 is arranged in slide opening.

The rotation band moving cam 5 of friction pulley 4 rotates, and cam ejection pin mechanism makes the pen cap 8 seesaw under the effect of spring 7, is used for drawing the middle dotted line of matts.

Claims

1. can draw the matts brush of dotted line, the brush holder that comprises brush body and described brush body top, the two ends of described brush body bottom surface have counterbore, in described counterbore, detail pen is housed, it is characterized in that: the centre of described brush body bottom surface has groove, there is slide opening bottom surface in a side of described groove, one friction pulley is installed in described groove, described friction pulley connects the cam in described brush body by rotating shaft, profile contact push rod one end of described cam, described push rod other end cover has spring, middle part, described push rod side has projection, one end of described spring is fixed in described projection, the other end contacts the end face of described brush body, described push rod is fixedly connected with a pen cap, in the described pen cap, detail pen is housed, be arranged in described slide opening.

2. the matts brush that can draw dotted line according to claim 1, is characterized in that: described rotating shaft is arranged on by bearing on the sidewall of described groove, the both sides installing sleeve of described bearing.

3. the matts brush that can draw dotted line according to claim 1, is characterized in that: described detail pen is chalk.