CN202599271U - Adjustable protractor - Google Patents

Adjustable protractor Download PDF

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Publication number
CN202599271U
CN202599271U CN 201220257400 CN201220257400U CN202599271U CN 202599271 U CN202599271 U CN 202599271U CN 201220257400 CN201220257400 CN 201220257400 CN 201220257400 U CN201220257400 U CN 201220257400U CN 202599271 U CN202599271 U CN 202599271U
Authority
CN
China
Prior art keywords
semicircular arc
main scale
scale
ruler
arc main
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 201220257400
Other languages
Chinese (zh)
Inventor
辛一红
黎秋兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGXI WANZAI COUNTY TIANHE MEASURING TOOL CUTLERY CO Ltd
Original Assignee
JIANGXI WANZAI COUNTY TIANHE MEASURING TOOL CUTLERY CO Ltd
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 JIANGXI WANZAI COUNTY TIANHE MEASURING TOOL CUTLERY CO Ltd filed Critical JIANGXI WANZAI COUNTY TIANHE MEASURING TOOL CUTLERY CO Ltd
Priority to CN 201220257400 priority Critical patent/CN202599271U/en
Application granted granted Critical
Publication of CN202599271U publication Critical patent/CN202599271U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an adjustable protractor, which is simple in structure, convenient to use, flexible and reliable and has high measurement precision. The adjustable protractor comprises a semi-circular arc main scale, and a straight scale which is connected with the semi-circular arc main scale, wherein the straight scale is provided with a dovetail groove along the length direction; the dovetail groove of the straight scale is provided with two sliding blocks; and a semi-circular arc plate of the semi-circular arc main scale and a measuring straight arm are movably connected to the straight scale correspondingly respectively through the two corresponding sliding blocks.

Description

Adjustable protractor
Technical field
The utility model relates to a kind of measurer, relates in particular to a kind of adjustable protractor.
Background technology
Protractor is industry measurers commonly used such as a kind of industrial processes manufacturing industry; For this simple and conventional industrial protractor; The most basic requirement is to use conveniently, and is simple in structure, stands and falls; And can reach the fundamental measurement accuracy requirement, particularly the protractor of some fairly simple processing manufacturing industries uses is all the more so; Existing this type angle measuring tool, though some function ratio is more, complex structure is complicated especially, all make troubles for use and Baojing and maintenance, and cost is high; And the simple relatively angulation utensil of some structures, then function is too single, and to the size of workpiece,, the variation adaptability of shape, measuring point is relatively poor relatively.
The utility model content
The purpose of the utility model is the deficiency that exists to prior art, and a kind of adjustable protractor is provided.This adjustable angle gage structure is simple, uses more conveniently, flexible, reliable, and measuring accuracy is high.
The technical scheme of the utility model comprises the semicircular arc main scale; The ruler that is connected with said semicircular arc main scale; Its length direction of said ruler upper edge is provided with dovetail groove; This dovetail groove of ruler is provided with two slide blocks, and the semicircular arc plate of said semicircular arc main scale is movably connected on the said ruler through corresponding two slide blocks with the measurement straight-arm is corresponding respectively.
The semicircular arc plate of said semicircular arc main scale is connected on this slide block through concave slide groove on the corresponding slide block and lock-screw thereof.
A slide block that is connected with the semicircular arc plate of said semicircular arc main scale be provided with the semicircular arc main scale on the corresponding indicator of scale.
The adjustable in length that its ruler of the adjustable protractor of the utility model contacts with workpiece; Can be along with the difformity of workpiece and need adjusting of position to the position of semicircular arc main scale; To satisfy the different measuring requirement; And use the laser writing scale mark, reading error is little, can rule and measurement of angle to workpiece.
Description of drawings
Fig. 1 is the adjustable angle gage structure synoptic diagram of the utility model.
Embodiment
Existing through embodiment and combine accompanying drawing that the utility model is described further.As shown in Figure 1, the angular detection scope of the adjustable protractor of present embodiment is 10~170 degree, and the semicircular arc main scale is connected and composed by semicircular arc plate 1 and measurement straight-arm 2, through laser writing scale value is arranged on the wall of semicircular arc plate 1.
Ruler 3 upper wall surfaces are provided with a dovetail groove 4 that connects along its length direction; Corresponding to the slide block of measuring straight-arm 25 and slideable respectively being connected in the dovetail groove 4 of slide block 6 that is provided with indicator, the measurement straight-arm 2 of semicircular arc main scale is flexibly connected with ruler 3 through corresponding slide block 5 by screw pin 9 from the center mutually; The semicircular arc plate 1 of semicircular arc main scale flexibly connects with ruler 3 through concave slide groove 7 set above the slide block 6 that is provided with indicator mutually, simultaneously semicircular arc plate 1 and be provided with between the slide block 6 of indicator and be connected with lock screw 8; Division indicator is connected in spacing block set 10 slide block 6, semicircular arc plate 1 by the concave slide groove that is positioned at corresponding slide block 67 tops and constitutes.
During use, ruler is that rotate in the center of circle with the screw pin, and the indicator indication angle on its corresponding slide block is taking measurement of an angle of workpiece; Can the semicircular arc main scale be locked on the ruler through lock screw, when lock screw was not locked, the semicircular arc main scale can rotate, can move along the ruler length direction through corresponding slide block and dovetail groove simultaneously around screw pin on ruler.

Claims (3)

1. adjustable protractor; Comprise the semicircular arc main scale; The ruler that is connected with said semicircular arc main scale; It is characterized in that its length direction of said ruler upper edge is provided with dovetail groove, this dovetail groove of ruler is provided with two slide blocks, and the semicircular arc plate of said semicircular arc main scale is movably connected on the said ruler through corresponding two slide blocks with the measurement straight-arm is corresponding respectively.
2. according to the said adjustable protractor of claim 1, it is characterized in that the semicircular arc plate of said semicircular arc main scale is connected on this slide block through concave slide groove on the corresponding slide block and lock-screw thereof.
3. according to the said adjustable protractor of claim 1, it is characterized in that a slide block that is connected with the semicircular arc plate of said semicircular arc main scale be provided with the semicircular arc main scale on the corresponding indicator of scale.
CN 201220257400 2012-06-01 2012-06-01 Adjustable protractor Expired - Fee Related CN202599271U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220257400 CN202599271U (en) 2012-06-01 2012-06-01 Adjustable protractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220257400 CN202599271U (en) 2012-06-01 2012-06-01 Adjustable protractor

Publications (1)

Publication Number Publication Date
CN202599271U true CN202599271U (en) 2012-12-12

Family

ID=47316801

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220257400 Expired - Fee Related CN202599271U (en) 2012-06-01 2012-06-01 Adjustable protractor

Country Status (1)

Country Link
CN (1) CN202599271U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514599A (en) * 2016-12-08 2017-03-22 中国特种飞行器研究所 Tubular structural member surface line drawing device
CN108571951A (en) * 2018-04-27 2018-09-25 国网山东省电力公司青州市供电公司 Measuring rule

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514599A (en) * 2016-12-08 2017-03-22 中国特种飞行器研究所 Tubular structural member surface line drawing device
CN108571951A (en) * 2018-04-27 2018-09-25 国网山东省电力公司青州市供电公司 Measuring rule
CN108571951B (en) * 2018-04-27 2020-12-11 国网山东省电力公司青州市供电公司 Measuring ruler

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Legal Events

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

Granted publication date: 20121212

Termination date: 20150601