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Compass with scales

A technology of scales and compasses, applied in the field of school supplies, can solve the problem that compasses have no scales, etc.

Inactive Publication Date: 2019-04-02
卢昕昊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current compass does not have a scale, and a ruler must be used to measure it

Method used

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  • Compass with scales

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Embodiment Construction

[0009] Such as figure 1 A kind of compass with scale, including a pole 1, a crossbar 2 and a drawing pole 3, the upper part of the pole 1 is provided with a rotating device 4, the crossbar 2 is connected with the rotating device 4, and the pole 1 and the crossbar 2 is arranged vertically, the crossbar 2 is provided with a sliding groove 5, the drawing rod 3 is arranged on the sliding groove 5, and the position corresponding to the sliding groove 5 is provided with a scale 6 on the crossbar 2.

[0010] A compass with a scale provided by the present invention adopts the above-mentioned structure. When in use, the position of the drawing rod on the cross bar can be adjusted according to the required size. The design has the advantages of simple structure, convenient use and obvious effect.

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Abstract

The invention provides a compass with scales, and belongs to the field of school supplies, and aims to achieve the purpose of accurately drawing circles. The technical scheme comprises a supporting rod, a cross rod and a drawing rod, a rotating device is arranged on the upper portion of the supporting rod, one end of the cross rod is connected with the rotating device, the supporting rod is vertically arranged with the transverse rod, the other end of the supporting rod is connected with the drawing rod, and the drawing rod is vertically arranged with the transverse rod. By the adoption of thestructure, the position of the drawing rod on the cross rod can be adjusted according to the size of the required size when the compass is used. The compass has advantages of being simple in design and structure, convenient to use and obvious in effect.

Description

technical field [0001] The invention belongs to the field of school supplies, and in particular relates to a compass with scales. Background technique [0002] The present compass has no scale, and a ruler must be used to measure it. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a compass with a scale so as to improve the convenience of use. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a compass with a scale, including a support rod, a cross bar and a drawing rod, the upper part of the support rod is provided with a rotating device, and one end of the cross rod is connected with the rotating device Connected, the pole and the cross bar are vertically arranged, the cross bar is provided with a slide groove, the drawing rod is arranged on the slide groove, and the position corresponding to the slide groove is provided with a scale ...

Claims

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Application Information

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IPC IPC(8): B43L9/02B43L9/16
CPCB43L9/02B43L9/16
Inventor 卢昕昊
Owner 卢昕昊
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