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A dot-and-dash compass

A dot-dash line and compass technology, applied in the field of stationery, can solve the problems of cumbersome operation and poor drawing effect.

Inactive Publication Date: 2016-06-15
JINHUA VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now when drawing dot-dash circles by hand, it is necessary to use ordinary compasses to draw points and arcs at intervals between lead cores, which is cumbersome to operate and poor in drawing effect

Method used

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  • A dot-and-dash compass
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Experimental program
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Embodiment approach

[0013] Such as Figure 1-Figure 3 As shown, a dotted line compass includes a flange wheel 1, a lead core sleeve 2, a lead core 3, a guide wheel 4, a lead core seat 5, a lead core sleeve foot 6, a locking screw 7, an ordinary compasses universal part 8, Slide block 9, universal ball 10, spring 11, wherein guide wheel 4 is installed on the outside of lead core cover foot 5, and the inner side is provided with flange wheel 1 and guide wheel 4 coaxial, and lead core cover foot 5 has inner hole, slides The upper part of the block 9 is provided with a spring 11 and placed together in the inner hole of the lead sleeve foot 6, the lower side of the slider 9 is provided with a universal ball 10, the lead seat 5 is fixed on the slider, and the lower side is filled with a lead core. 3 and install the lead sleeve 2;

[0014] In addition, the guide wheel 4 and the flange wheel 1 are relatively fixed, and the outer contour of the flange wheel 1 is a regular concave-convex shape. The rotati...

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PUM

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Abstract

The invention discloses a pair of dot dash line compasses. The pair of dot dash line compasses comprises a flanged wheel, a lead refill sleeve, a lead refill, a guide wheel, a lead refill seat, a lead refill sleeve foot, a locking screw, an ordinary compass general part, slide blocks, a universal ball and a spring. By using the pair of dot dash line compasses, dot dash line circles can be drawn conveniently. The operating method of the pair of dot dash line compasses is the same as that of ordinary compasses.

Description

technical field [0001] The invention relates to a stationery, in particular to a dot-and-dash line compasses. Background technique [0002] Now when manually drawing dot-dash circles, it is necessary to use ordinary compasses to draw points and arcs at intervals, which is cumbersome to operate and the drawing effect is not good. Contents of the invention [0003] The present invention overcomes the deficiencies of the prior art and provides a dot-dash line compasses. [0004] The present invention is achieved through the following technical solutions [0005] A dot-dash line compass includes a flange wheel, a lead core sleeve, a lead core, a guide wheel, a lead core seat, a lead core sleeve foot, a locking screw, common parts for a common compasses, a slider, a universal ball, and a spring. The wheel is installed on the outer side of the lead core sleeve, and the inner side is provided with a flange wheel coaxial with the guide wheel. The lead core sleeve has an inner ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L9/02
CPCB43L9/02
Inventor 徐振宇
Owner JINHUA VOCATIONAL TECH COLLEGE