CN201417118Y - Vernier pitch caliper - Google Patents

Vernier pitch caliper Download PDF

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Publication number
CN201417118Y
CN201417118Y CN200920079113XU CN200920079113U CN201417118Y CN 201417118 Y CN201417118 Y CN 201417118Y CN 200920079113X U CN200920079113X U CN 200920079113XU CN 200920079113 U CN200920079113 U CN 200920079113U CN 201417118 Y CN201417118 Y CN 201417118Y
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CN
China
Prior art keywords
vernier
scale
pipe
pitch
breach
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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
CN200920079113XU
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Chinese (zh)
Inventor
戴斌
Original Assignee
戴斌
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 戴斌 filed Critical 戴斌
Priority to CN200920079113XU priority Critical patent/CN201417118Y/en
Application granted granted Critical
Publication of CN201417118Y publication Critical patent/CN201417118Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to the technical field of a measure, in particular to a vernier pitch caliper adapted to measure the centre distance of pipes between equal-diameter parallel pipes. The utility model provides the vernier pitch caliper comprising a main scale, a vernier scale, according to the disadvantages of inconvenient usage, low work efficiency, low precision, disability to read directly,and restrained operative space in the existing operation. The vernier scale can slide, while the claw feet of the two scales are provided with indentations, and can be located automatically. The vernier pitch caliper has the advantages of convenient use, speediness, high precision and intuitive reading, is particularly suitable for large-scaled industrial production testing, and satisfies thedemands of batch measurement and detection in production well.

Description

Vernier pitch chi
Affiliated technical field
The utility model relates to the measurer technical field, is specially adapted to measure the vernier pitch chi of centre distance between the isometrical parallel pipe.
Background technology
In the commercial production, often run into the problem (distance between pipe and the pipe center line is commonly called as the pipe pitch) that needs to measure centre distance between one group of isometrical parallel pipe.As the station boiler industry, in the fin panel casing manufacture process, pitch between the membrane wall pipe is measured, because that pipe range leaves the surplus pipe end is uneven, can't use vernier caliper to measure at pipe end, measures difficulty thereby increase.Existing way is: use a length to be placed on the two tubes greater than the steel disc of pipe pitch, move along the tube axis direction, firmly respectively scrape one the straight line (see figure 4) on the two tubes surface, and then the use straight steel ruler is measured the distance between the twice straight line, thereby estimate the pitch of two tubes, because the line thickness inequality that scrapes, use that the straight steel ruler measuring error is big, inefficiency, precision is low, intuitively but the reading operating space is restricted, can not satisfy in the production demand measure batch, detection.
The utility model content
But the purpose of this utility model provides the vernier pitch chi that a kind of precision height, reading operating space directly perceived is not restricted.
The technical scheme that its technical matters that solves the utility model adopts is: this vernier pitch chi comprises main scale, vernier scale.Vernier scale can slide along main scale, a size, the identical breach of shape are arranged respectively on the pawl pin of main scale and vernier scale, on the two pawl pin contact point of breach and measured pipe 4 point-blank, the distance between the two breach centers is the metering reading of this vernier pitch chi.Because 4 points (seeing A among Fig. 1, B, C, D 4 points) that breach contacts with measured isometrical parallel pipe surface on this vernier pitch chi two pawl pin point-blank, line segment AB equals line segment CD, because the pipe xsect is a circle, characteristic according to circle: when line segment AB equals line segment CD, and 4 of A, B, C, D are point-blank the time, so the mid point of mid point by AB and CD do the vertical line of ABCD straight line respectively must be by the centers of circle of two circles, the distance between the mid point of the mid point of AB and CD equals the distance between the two round hearts like this.The breach that draws two pawl pin thus has the function that isometrical parallel pipe center line is found in automatic location, thereby measures isometrical parallel pipe centre distance (being pitch) conveniently, accurately.Be equipped with scale on main scale and the vernier scale, when main scale and vernier scale two pawl pin close up (see figure 5), to aim at the shown numerical value of scale mark on the main scale be distance (being the distance between the central point of central point and CD of AB) between the two pawl pin breach central points to zero line on the vernier scale, so the numerical value of directly reading that need not convert when measurement pipe pitch is exactly two centre distances (pitch) between the pipe.
The beneficial effects of the utility model are: vernier pitch chi is convenient and practical, reading is simple and clear, measuring accuracy is high, not limited by site environment, there is not specific (special) requirements during measurement, can measure at any place of isometrical parallel pipe, need not measure at pipe end, not need to seek reference point, the location is directly measured at tube surface and is got final product automatically, measuring accuracy and efficiency of measurement improve greatly, satisfy the demand to measuring, checking in producing.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model vernier pitch chi front view, vertical view, M-M cut-open view.
Fig. 2 is that the utility model vernier pitch chi is implemented illustration.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is current measuring methods figure.
Fig. 5 is the views of vernier pitch chi two pawl pin when closing up.
1. main scales among the figure, 2. vernier scale, 3. pipe, 4. band steel, 5. weld seam, 6. steel disc,
A, B, 4 of C, D are the contact point of main scale (1) and vernier scale (2) pawl pin breach and measured pipe.
Embodiment
In Fig. 1, this vernier pitch chi divides the two large divisions: main scale (1), vernier scale (2).On the pawl pin of main scale (1) and vernier scale (2), leave a size, the identical breach of shape respectively, be illustrated as semicircle.4 A, the B that main scale (1) and vernier scale (2) pawl pin breach contact with measured pipe, C, D are point-blank, along with vernier scale (2) is parallel with glide direction all the time along main scale (1) this 4 straight lines that are linked to be that slide, the distance on two breach between the center of 2 of the center of 2 of A, B and C, D is the reading on the vernier pitch chi.Two pawl pin notch geometries can be V-type, fan type or semicircle etc., preferably adopt semicircle, and semicircle manufacturing is easy to process.
In embodiment illustrated in fig. 2, vernier pitch chi is placed on the two tubes surface, make two pawl pin of main scale (1) and vernier scale (2) contact pipe (3) fully, utilize the automatic positioning function of breach, accurately measure two centre distances (being pitch) between the pipe at circular surface.
(Fig. 3 is the vertical view of Fig. 2) in the embodiment shown in fig. 3, visible one group of isometrical parallel pipe pipe end is uneven, and vernier pitch chi can be measured at any place of isometrical parallel pipe.
Figure 4 shows that current measuring methods: use a length to be placed on the two tubes greater than the steel disc (6) of pipe pitch, move along pipe (3) axis direction, firmly respectively scrape straight line one on the two tubes surface, and then use straight steel ruler to measure distance between the twice straight line, be used for estimating the distance between the two tubes center.
When Figure 5 shows that vernier pitch chi main scale (1) and vernier scale (2) two pawl pin close up, vernier scale (2) is gone up zero line, and to aim at numerical value that the scale mark on the main scale (1) shows be distance (being the distance between the central point of the central point of AB and CD) between two pawl pin breach and the measured pipe contact point center, so when measuring the pipe pitch, the numerical value of directly reading is exactly two centre distances (being pitch) between the pipe.

Claims (1)

1. vernier pitch chi of measuring pipe centre distance between the isometrical parallel pipe, comprise that main scale (1), vernier scale (2) is characterized in that vernier scale (2) can slide along main scale (1), a size, the identical breach of shape are arranged respectively on the pawl pin of main scale (1) and vernier scale (2), on the two pawl pin contact point of breach and measured pipe 4 point-blank, the distance between the two breach centers is the metering reading of this vernier pitch chi.
CN200920079113XU 2009-02-19 2009-02-19 Vernier pitch caliper Expired - Fee Related CN201417118Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920079113XU CN201417118Y (en) 2009-02-19 2009-02-19 Vernier pitch caliper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920079113XU CN201417118Y (en) 2009-02-19 2009-02-19 Vernier pitch caliper

Publications (1)

Publication Number Publication Date
CN201417118Y true CN201417118Y (en) 2010-03-03

Family

ID=41793541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920079113XU Expired - Fee Related CN201417118Y (en) 2009-02-19 2009-02-19 Vernier pitch caliper

Country Status (1)

Country Link
CN (1) CN201417118Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103368109A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioning device
CN103368108A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioner
CN103368107A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioning method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103368109A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioning device
CN103368108A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioner
CN103368107A (en) * 2013-07-16 2013-10-23 国家电网公司 High-voltage pothead lineation cutting positioning method
CN105186397A (en) * 2013-07-16 2015-12-23 国家电网公司 One-time lineating high-voltage cable head lineation cutting positioning device
CN105186395A (en) * 2013-07-16 2015-12-23 国家电网公司 Application method of high-voltage cable head lineation cutting positioning device accurate and convenient to manufacture
CN103368108B (en) * 2013-07-16 2015-12-23 国家电网公司 High-voltage pothead lineation locater for cutting
CN105186396A (en) * 2013-07-16 2015-12-23 国家电网公司 High-voltage cable head lineation cutting positioning device accurate and convenient to manufacture
CN105186401A (en) * 2013-07-16 2015-12-23 国家电网公司 Application method of high-voltage cable head lineation cutting positioning device accurate in manufacturing
CN105186400A (en) * 2013-07-16 2015-12-23 国家电网公司 Application method of one-time lineating high-voltage cable head lineation cutting positioning device
CN105186398A (en) * 2013-07-16 2015-12-23 国家电网公司 Application method of one-time lineating and positioning high-voltage cable head lineation cutting positioning device
CN103368109B (en) * 2013-07-16 2016-01-20 国家电网公司 High-voltage pothead lineation cutting and positioning device
CN105281259A (en) * 2013-07-16 2016-01-27 国家电网公司 High-voltage cable head line cutting positioning device capable of one-step line positioning
CN103368107B (en) * 2013-07-16 2016-02-03 国家电网公司 High-voltage pothead lineation cutting localization method
CN105591325A (en) * 2013-07-16 2016-05-18 国家电网公司 Line-scribing, cutting, and positioning method of high-voltage cable head with one-time line-scribing positioning
CN105591324A (en) * 2013-07-16 2016-05-18 国家电网公司 Line-scribing, cutting, and positioning method of high-voltage cable head with accurate manufacture
CN105591323A (en) * 2013-07-16 2016-05-18 国家电网公司 Line-scribing, cutting, and positioning method of high-voltage cable head with convenient manufacture and one-time line-scribing positioning
CN105591326A (en) * 2013-07-16 2016-05-18 国家电网公司 Line-scribing, cutting, and positioning method of high-voltage cable head
CN105610098A (en) * 2013-07-16 2016-05-25 国家电网公司 Convenient-to-fabricate high-voltage cable head marking and cutting positioning method
CN105610096A (en) * 2013-07-16 2016-05-25 国家电网公司 Convenient- and accurate-to-fabricate high-voltage cable head marking and cutting positioning method
CN105610097A (en) * 2013-07-16 2016-05-25 国家电网公司 Accurate-to-fabricate high-voltage cable head marking and cutting positioning method employing one-time marking positioning
CN105633862A (en) * 2013-07-16 2016-06-01 国家电网公司 Convenient-to-fabricate high-voltage cable head marking and cutting positioning method employing one-time marking positioning
CN105281259B (en) * 2013-07-16 2017-12-01 国家电网公司 The method of work of the high-voltage pothead lineation locater for cutting of disposable line positioning

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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: 20100303

Termination date: 20130219

C17 Cessation of patent right