CN202685683U - Convenient compasses - Google Patents

Convenient compasses Download PDF

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Publication number
CN202685683U
CN202685683U CN 201220342409 CN201220342409U CN202685683U CN 202685683 U CN202685683 U CN 202685683U CN 201220342409 CN201220342409 CN 201220342409 CN 201220342409 U CN201220342409 U CN 201220342409U CN 202685683 U CN202685683 U CN 202685683U
Authority
CN
China
Prior art keywords
supporting leg
fixed
movable supporting
fixed supporting
compasses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220342409
Other languages
Chinese (zh)
Inventor
尹海霞
Original Assignee
尹海霞
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 尹海霞 filed Critical 尹海霞
Priority to CN 201220342409 priority Critical patent/CN202685683U/en
Application granted granted Critical
Publication of CN202685683U publication Critical patent/CN202685683U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to convenient compasses, belonging to school supplies. The convenient compasses structurally comprise hand shanks, a rotating shaft, a movable supporting leg and a fixed supporting leg, wherein the hand shanks are arranged at the top ends of the movable supporting leg and the fixed supporting leg; the hand shanks, the movable supporting leg and the fixed supporting leg are connected through the rotating shaft; a clamp is arranged on the movable supporting leg; a concave semicircle is formed at the inner surface of the clamping part of the clamp; two clamping surfaces form a hollow cylinder after being jointed; one end of a handheld end of the clamp is fixed at the outer surface of the movable supporting leg; a needle tip is arranged at the bottom end of the fixed supporting leg; and a ruler is arranged at the joint of the tip and the fixed supporting leg, and is fixed on the fixed supporting leg through a pin shaft. The convenient compasses have the characteristic that radius measurement and line drawing are convenient.

Description

A kind of convenient compasses
Technical field
The utility model relates to a kind of study article, specifically a kind of convenient compasses.
Background technology
Compasses are the instrument of picture circle and circular arc in mathematics and drawing, use compasses in the process of drawing circle, must at first determine the center of circle and radius, for guaranteeing drawing accuracy of gauge and picture quality, radius need use ruler to measure, because traditional ruler mostly is laminar, easily fracture and damage, so deposit and carry very inconvenient; In addition, need finishing and replacing after the nib use of compasses for setting-out, very inconvenient.
The utility model content
The purpose of this utility model is to provide a kind of convenient compasses, and these compasses have the function that is convenient for measuring radius and setting-out.
The technical scheme in the invention for solving the technical problem is: a kind of convenient compasses, its structure comprises handle, rotating shaft, movable supporting legs and fixed supporting leg, handle is installed in the top of movable supporting legs and fixed supporting leg, the three connects by rotating shaft, be provided with clip at movable supporting legs, the inner surface of this clip clamping place is the semicircle of indent, two clamping faces are a hollow cylinder after engaging, handheld terminal one side of described clip is fixed on the outer surface of movable supporting legs, the bottom of described fixed supporting leg is provided with the needle-like tip, tip and fixed supporting leg junction are equipped with ruler, and ruler is fixed on the supporting leg by bearing pin.
The beneficial effects of the utility model are: before the use, utilize clip with suitable pen clip on movable supporting legs, rotate ruler to the perpendicular position of fixed supporting leg, regulate tip on the fixed supporting leg and the distance between the nib on the movable supporting legs to determine radius size according to the size scale line on the ruler, after adjusting is finished, upwards rotate ruler to closing up mutually with fixed supporting leg, then just available compasses are drawn; The utility model is simple in structure, and use flexibly, conveniently is easy to carry.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 handle, 2 rotating shafts, 3 movable supporting legs, 4 fixed supporting legs, 5 clips, 6,7 bearing pins, 8 rulers.
The specific embodiment
As shown in Figure 1.A kind of convenient compasses, its structure comprises handle 1, rotating shaft 2, movable supporting legs 3 and fixed supporting leg 4, handle 1 is installed in the top of movable supporting legs 3 and fixed supporting leg 4, the three connects by rotating shaft 2, be provided with clip 5 at movable supporting legs 3, the inner surface of these clip 5 clampings place is the semicircle of indent, two clamping faces are a hollow cylinder after engaging, handheld terminal one side of described clip 5 is fixed on the outer surface of movable supporting legs 3, the bottom of described fixed supporting leg 4 is provided with the needle-like tip, tip and fixed supporting leg 4 junctions are equipped with ruler 8, and ruler 8 is fixed on the supporting leg by bearing pin 7, make ruler 8 also can turn rotation around fixed supporting leg 360 degree.
Before the use, utilize clip 5 that suitable pen 6 is clipped on the movable supporting legs 3, rotate ruler 8 to the perpendicular position of fixed supporting leg 4, regulate tip on the fixed supporting leg 4 and the distance between the nib on the movable supporting legs 3 to determine radius size according to the size scale line on the ruler 8, after adjusting is finished, upwards rotate ruler 8 to closing up mutually with fixed supporting leg 4, then just available compasses are drawn; The utility model is simple in structure, and use flexibly, conveniently is easy to carry, and especially is fit to the student and uses.

Claims (1)

1. convenient compasses, comprise handle, rotating shaft, movable supporting legs and fixed supporting leg, handle is installed in the top of movable supporting legs and fixed supporting leg, the three connects by rotating shaft, it is characterized in that, be provided with clip at movable supporting legs, the inner surface of this clip clamping place is the semicircle of indent, two clamping faces are a hollow cylinder after engaging, handheld terminal one side of described clip is fixed on the outer surface of movable supporting legs, the bottom of described fixed supporting leg is provided with the needle-like tip, and tip and fixed supporting leg junction are equipped with ruler, and ruler is fixed on the supporting leg by bearing pin.
CN 201220342409 2012-07-16 2012-07-16 Convenient compasses Expired - Fee Related CN202685683U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220342409 CN202685683U (en) 2012-07-16 2012-07-16 Convenient compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220342409 CN202685683U (en) 2012-07-16 2012-07-16 Convenient compasses

Publications (1)

Publication Number Publication Date
CN202685683U true CN202685683U (en) 2013-01-23

Family

ID=47541346

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220342409 Expired - Fee Related CN202685683U (en) 2012-07-16 2012-07-16 Convenient compasses

Country Status (1)

Country Link
CN (1) CN202685683U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106183559A (en) * 2016-09-27 2016-12-07 泉州惠安泉创文化用品有限公司 A kind of compasses with angular surveying

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106183559A (en) * 2016-09-27 2016-12-07 泉州惠安泉创文化用品有限公司 A kind of compasses with angular surveying

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130123

Termination date: 20130716