Unlock instant, AI-driven research and patent intelligence for your innovation.

Double-drawing-pin compasses

A technique of drawing needles and compasses, applied in the field of double drawing needles and compasses, to achieve the effect of structural science

Inactive Publication Date: 2014-06-11
ZAOYANG CITY EXPERIMENTAL MIDDLE SCHOOL
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The compasses used now have two outriggers, namely the fixed needle and the drawing needle. When in use, the center is fixed by the fixed needle, and the drawing needle is used to draw a circular figure. This traditional compasses can only make one circular figure at a time. , and only one lead core can be used

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-drawing-pin compasses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] attached figure 1 As shown: there is a fixed fixed pin 1 in the middle of the compass, and the lead pin 2 and the gel pen core pin 3 are respectively on both sides.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a pair of double-drawing-pin compasses. A fixed stationary pin is arranged in the middle of the compasses, and a pencil lead drawing pin and a gel pen core drawing pin are respectively arranged at two sides. In the use process, two round patterns in different sizes can be fast and conveniently drawn in one step, in addition, a pencil lead or a gel pen core can be selected to be used for drawing pictures according to requirements, the structure is scientific, and the use during the picture drawing is particularly convenient.

Description

technical field [0001] The invention relates to a compass, in particular to a compass with double drawing needles. Background technique [0002] The compasses used now have two outriggers, namely the fixed needle and the drawing needle. When in use, the center is fixed by the fixed needle, and the drawing needle is used to draw a circular figure. This traditional compasses can only make one circular figure at a time. , and only one lead core can be used. Contents of the invention [0003] The invention provides a double-drawing needle compasses, which can draw two circular figures at one time, and can choose to use different stroke figures. [0004] The invention includes the fixed needle of the compasses, and the adopted technical scheme is that: there is a fixed fixed needle in the middle of the compasses, and the two sides are lead-core drawing needles and neutral pen core drawing needles respectively. [0005] The beneficial effect of the present invention is reflect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B43L9/02
Inventor 周秋实
Owner ZAOYANG CITY EXPERIMENTAL MIDDLE SCHOOL