CN201034537Y - Accurate bevel gauge - Google Patents

Accurate bevel gauge Download PDF

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Publication number
CN201034537Y
CN201034537Y CNU2007200110967U CN200720011096U CN201034537Y CN 201034537 Y CN201034537 Y CN 201034537Y CN U2007200110967 U CNU2007200110967 U CN U2007200110967U CN 200720011096 U CN200720011096 U CN 200720011096U CN 201034537 Y CN201034537 Y CN 201034537Y
Authority
CN
China
Prior art keywords
protractor
benchmark
angle
scale
opening
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
CNU2007200110967U
Other languages
Chinese (zh)
Inventor
张鹏
Original Assignee
张鹏
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 张鹏 filed Critical 张鹏
Priority to CNU2007200110967U priority Critical patent/CN201034537Y/en
Application granted granted Critical
Publication of CN201034537Y publication Critical patent/CN201034537Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a precise protractor. A section of opening is arranged on each scale on the upper edge of the protractor. The circle center of the protractor is moveably connected with a benchmark which is positioned on the same plane as the protractor. Magnifiers are arranged at both ends of the benchmark. In use, users can use the protractor to measure angles normally as well as mark on the opening with a pen tip to avoid forgetting. In drawing an angle, users rotate the benchmark to make an angle between the benchmark and the bottom line of the protractor. The other end of the benchmark coincides with the scale. The angle value indicated by the due scale is the angle value that is needed to be drew. In observing the angle, users rotate the magnifiers at the top of the benchmark to amplify the scale for the convenience of observation. The utility model has the advantages of a reasonable structure, convenience, practicality, a beautiful appearance, a simple processing and highly accurate measuring etc. Besides, the utility model can mark and draw angles of various values and is convenient for uses to observe.

Description

Accurate protractor
Technical field
The utility model relates to a kind of drawing instrument, especially a kind of protractor that can improve measuring accuracy.
Technical background is well-known, and the instrument that people are used to take measurement of an angle in study and work mainly relies on protractor, but present protractor function fairly simple that, there is technical deficiency, for example, the user can only take measurement of an angle by the application quantity hornwork, but can't draw angle; In addition, the scale numerical value of protractor is very tiny at present, is not easy to the more weak user of eyesight and uses.For this reason, provide a kind of new-type protractor that can be convenient for measuring and can conveniently observe very necessary.
Summary of the invention
The purpose of this utility model provides a kind of accurate protractor, is used to solve problems such as common protractor measuring accuracy is low, function is simple.
For achieving the above object, the accurate protractor of the utility model, comprise semicircle protractor, evenly the marking line of each angle index is guided in marking at the angle index on protractor circular arc limit, from the center of circle, offers one section opening along every marking line on protractor, opening is near angle index; The protractor center of circle and mark post flexibly connect, and mark post and protractor are in same plane; The mark post two ends are provided with magnifier.
After adopting said structure, the user is the use amount hornwork value of taking measurement of an angle normally, and after measuring, also available nib is carried out mark at opening part, avoids forgeing; In drawing the angle process, the rotatable mark post of user makes itself and protractor base form angle, and the mark post other end overlaps with the marking line, the angle value that the represented angle value of this marking line just can be to be drawn; In the observation process, the magnifier on the rotatable mark post top of user amplifies scale by magnifier, is convenient to the user and observes, and avoids producing error.
The utility model has the advantages that: rational in infrastructure, convenient and practical, handsome in appearance, technology is simple, measuring accuracy is high, but marking and draw various angles, and be convenient to the user and observe.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the accurate protractor of the utility model.
Embodiment
As shown in Figure 1, the accurate protractor of the utility model, comprise semicircle protractor 1, evenly the marking line 2 of each angle index is guided in marking at the angle index on protractor 1 circular arc limit, from the center of circle, offers one section opening 3 along every marking line 2 on protractor 1, opening 3 is near angle indexs; Protractor 1 center of circle and a mark post 4 flexibly connect, and mark post 4 is in same plane with protractor 1; Mark post 4 two ends are provided with magnifier 5.

Claims (1)

1. accurate protractor, comprise that semicircle protractor (1), marking guide the marking line (2) of each angle index at the angle index on protractor (1) circular arc limit, from the center of circle, it is characterized in that: go up at protractor (1) and offer one section opening (3) along every marking line (2), opening (3) is near angle index; Protractor (1) center of circle and a mark post (4) flexibly connect, and mark post (4) is in same plane with protractor (1); Mark post (4) two ends are provided with magnifier (5).
CNU2007200110967U 2007-03-15 2007-03-15 Accurate bevel gauge Expired - Fee Related CN201034537Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200110967U CN201034537Y (en) 2007-03-15 2007-03-15 Accurate bevel gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200110967U CN201034537Y (en) 2007-03-15 2007-03-15 Accurate bevel gauge

Publications (1)

Publication Number Publication Date
CN201034537Y true CN201034537Y (en) 2008-03-12

Family

ID=39195426

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200110967U Expired - Fee Related CN201034537Y (en) 2007-03-15 2007-03-15 Accurate bevel gauge

Country Status (1)

Country Link
CN (1) CN201034537Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111912443A (en) * 2020-07-31 2020-11-10 广东电网有限责任公司 Outdoor meter protective housing of transformer substation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111912443A (en) * 2020-07-31 2020-11-10 广东电网有限责任公司 Outdoor meter protective housing of transformer substation

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Legal Events

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

Granted publication date: 20080312

C17 Cessation of patent right