CN109443166A - Inside diameter gauge and the method for measuring internal diameter of the pipeline - Google Patents
Inside diameter gauge and the method for measuring internal diameter of the pipeline Download PDFInfo
- Publication number
- CN109443166A CN109443166A CN201811645039.3A CN201811645039A CN109443166A CN 109443166 A CN109443166 A CN 109443166A CN 201811645039 A CN201811645039 A CN 201811645039A CN 109443166 A CN109443166 A CN 109443166A
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- Prior art keywords
- linear foot
- crossfoot
- measurement
- inside diameter
- pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention is for measuring internal diameter of the pipeline, and in particular to a kind of inside diameter gauge comprising orthogonal crossfoot and measurement linear foot；Crossfoot by middle part assembly sliding rail and symmetrically be fixed on assembly sliding rail at left and right sides of ruler portion form；Measurement linear foot is assemblied in the internal chute of assembly sliding rail and can slide up and down along internal chute；Two ruler portions of crossfoot and measurement linear foot are generally aligned in the same plane, and measurement linear foot front end is tip, which is located on the longitudinal centre line of crossfoot；The length 2B of crossfoot is fixed value.Inside diameter gauge structure of the present invention is simple and design is especially ingenious, the present invention also provides a kind of methods using inside diameter gauge measurement internal diameter of the pipeline simultaneously, simple operations are carried out using the inside diameter gauge and obtain the distance between tip and the crossfoot upper surface of measurement linear foot, you can get it internal diameter of the pipeline value is calculated by the measured value again, whole operation is extremely convenient；When measuring circular arc internal diameter of the circular arc less than 1/2 perimeter, the above advantage is more significant.
Description
Technical field
The present invention relates to a kind of inside diameter gauge and the methods for measuring internal diameter of the pipeline, especially suitable for measuring internal diameter of the pipeline
For measuring circular arc internal diameter of the circular arc less than 1/2 perimeter.
Background technique
In processing and manufacturing and survey field, it is often necessary to internal diameter of the pipeline is measured, and traditional measuring tool is being surveyed
All many-sided existing defects such as accuracy of measurement, convenience and generalization.
Summary of the invention
The technical problem to be solved by the present invention is overcome deficiency in the prior art, provide that a kind of structure is simple, production side
Just, at low cost and using the inside diameter gauge that operates conveniently, pass through simple operations and the inner diameter values for the pipeline that calculates that you can get it.
Inside diameter gauge of the present invention, including orthogonal crossfoot and measurement linear foot；Crossfoot is sliding by the assembly at middle part
Rail and the ruler portion composition being symmetrically fixed at left and right sides of assembly sliding rail；Measurement linear foot is assemblied in the internal chute of assembly sliding rail and energy
It is enough to be slided up and down along internal chute；Two ruler portions of crossfoot and measurement linear foot are generally aligned in the same plane, and measurement linear foot front end is tip, the point
End is located on the longitudinal centre line of crossfoot and (i.e. slides always along the center line of crossfoot at the tip of measurement linear foot)；The length 2B of crossfoot
For fixed value.
In use, the vertical range A between its tip and crossfoot upper surface is measured by measuring linear foot, by the numerical value of A, B
Bring formula into(wherein, R is internal diameter of the pipeline), can be calculated internal diameter of the pipeline.
Above-mentioned formula is pushed away by following two formula:
Formula one:Wherein, C be measurement linear foot tip on crossfoot at a distance from the either end of left and right, α
To measure the angle between the line of linear foot tip and crossfoot or so either end and measurement linear foot longitudinal midline；
Thus it obtains
According to Pythagorean theorem C2=A2+B2, push away
It can be seen from the above, inside diameter gauge structure of the present invention is simple and design is especially ingenious, pass through simple operations and meter
You can get it internal diameter of the pipeline value is calculated, whole operation is extremely convenient.It is above when measuring circular arc internal diameter of the circular arc less than 1/2 perimeter
Advantage is more significant.
The present invention provides following two preferred embodiments to measure numerical value A:
Scheme one:
Scale is directly arranged on measurement linear foot, and by scale readout value A, specific design scheme is as follows: measurement is vertical
There is scale value, it is 0, when measurement that tip, which correspond to scale, and the scale that crossfoot upper surface was aligned measure on linear foot is i.e. on ruler
The length value A surveyed for measurement linear foot.It is further preferred that installing arrow on assembly sliding rail, arrow is directed toward measurement
Scale on linear foot, when measurement, the scale on the measurement linear foot of arrow alignment is the length value A that measurement linear foot is surveyed.
Scheme two:
Digital display device is installed on measurement linear foot, length value A is immediately arrived at by digital display device.Digital display device is current
Conventional equipment, using relatively broad on the measuring tools such as digital display calliper.
The vertical range A between the tip and crossfoot upper surface of measurement linear foot can be obtained by both the above scheme.
In order to ensure the accuracy of reading, present invention employs following preferred embodiments: being provided with and interior cunning on assembly sliding rail
The threaded hole that slot communicates can will measure linear foot locking positioning by clamping screw from outside and threaded hole Screw assembly.It has measured
Cheng Hou can lock graduation position with clamping screw, and anti-sliding stop causes read untrue.
Preferably, the front of linear foot is measured, rear portion is respectively equipped with the first limit for preventing measurement linear foot from deviating from from internal chute
Position block, the second limited block, and at least one limited block is connected with measurement linear foot using seperated, and it is vertical to be on the one hand easy to implement measurement
The assembly of the internal chute of ruler and assembly sliding rail, on the other hand can limit the maximum magnitude of measurement, while effectively prevent measurement vertical
Ruler is deviate from from internal chute.
Preferably, the width for measuring linear foot front is gradually reduced, until tip.
The present invention also provides a kind of methods using above-mentioned inside diameter gauge measurement internal diameter of the pipeline, specifically include following step
It is rapid:
1. the crossfoot that length is 2B is placed in pipe under test, connect four on crossfoot upper surface points with inner wall of the pipe
Touching；
2. linear foot (from bottom to top from crossfoot lower end surface) will be measured to be assembled in the middle part of crossfoot in the internal chute of assembly sliding rail, when
When the tip and inner wall of the pipe for measuring linear foot contact, measurement the distance between linear foot tip and crossfoot upper surface A is measured；
3. calculating the numerical value of internal diameter of the pipeline R in conjunction with following formula one, formula two:
Formula one:Wherein, C be measurement linear foot tip on crossfoot at a distance from the either end of left and right, α
To measure the angle between the line of linear foot tip and crossfoot or so either end and measurement linear foot longitudinal midline；
Formula two: C2=A2+B2；
Formula three is obtained by formula one, formula two
It brings A, B numerical value into above formula respectively, the inner diameter values of pipeline can be calculated.
Compared with the prior art, the invention has the beneficial effects that:
Inside diameter gauge structure of the present invention is simple and design is especially ingenious, while the present invention also provides a kind of utilize to be somebody's turn to do
The method that inside diameter gauge measures internal diameter of the pipeline carries out simple operations using the inside diameter gauge and obtains tip and the crossfoot of measurement linear foot
The distance between upper surface, then you can get it internal diameter of the pipeline value is calculated by the measured value, whole operation is extremely convenient；It is measuring
Circular arc less than 1/2 perimeter circular arc internal diameter when, the above advantage is more significant.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one in the present invention；
Fig. 2 is the top view of crossfoot in Fig. 1；
Embodiment one is applied to the schematic diagram of internal diameter of the pipeline measurement by Fig. 3；
Fig. 4 is the structural schematic diagram of embodiment two in the present invention；
Fig. 5 is the principle schematic diagram of digital display device in embodiment two.
In figure: 1, crossfoot；2, sliding rail is assembled；3, linear foot is measured；4, scale value；5, the first limited block；6, tip；7, refer to
Show arrow；8, the second limited block；9, clamping screw；10, ruler portion；11, internal chute；12, pipeline；13, digital display device；14, it shows
Screen；15, integrated chip；16, central axis；17, screen is rolled；18, cut hole；19, photoelectric sensor.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing:
Embodiment one:
As shown in Figure 1, 2, the inside diameter gauge in the present embodiment includes orthogonal crossfoot 1 and measurement linear foot 3；Crossfoot 1
By middle part assembly sliding rail 2 and be symmetrically fixed on the ruler portion 10 of assembly sliding rail 2 left and right sides and form；Measurement linear foot 3 is assemblied in
It can slide up and down in internal chute 11 with sliding rail 2 and along internal chute 11；Two ruler portions 10 of crossfoot 1 and measurement linear foot 3 are located at same
One plane, measurement 3 front end of linear foot are tip 6, which, which is located on the longitudinal centre line of crossfoot 1, (measures the tip 6 of linear foot 3
Always slided along the center line of crossfoot 1), in the present embodiment, the width of measurement 3 front of linear foot is gradually reduced, until tip 6；It is horizontal
The length 2B of ruler 1 is fixed value.Measuring has scale value 4 on linear foot 3, the corresponding scale in tip 6 is 0；Simultaneously in assembly sliding rail 2
Upper installation arrow 7, arrow 7 is directed toward the scale on measurement linear foot 3, when measurement, measurement linear foot that arrow 7 is aligned
Scale on 3 is the length value A for measuring linear foot 3 and being surveyed.
In the present embodiment, front, the rear portion of measurement linear foot 3, which are respectively equipped with, prevents measurement linear foot 3 from deviating from from internal chute 11
The first limited block 5, the second limited block 8, wherein the first limited block 5 with measurement linear foot 3 using it is seperated connect (concrete scheme can
With the rear end of the first limited block be arranged thread segment, while measurement linear foot front open up threaded hole, make the first limited block with
Measurement linear foot is attached by screw thread), it is on the one hand easy to implement measurement linear foot 3 and assembles the assembly of the internal chute 11 of sliding rail 2,
On the other hand the maximum magnitude of measurement can be limited, while measurement linear foot 3 is effectively prevent to deviate from from internal chute 11.In order to ensure
The accuracy of reading is provided with the threaded hole communicated with internal chute 11 on assembly sliding rail 2, by clamping screw 9 from outside and screw thread
Hole Screw assembly can will measure 3 locking positioning of linear foot, after being measured, can lock graduation position with clamping screw 9, prevent
Sliding stop causes read untrue.
Fig. 3 is the schematic diagram that the present embodiment is applied to the measurement of 12 internal diameter of pipeline, is measured in pipeline 12 through this embodiment
Specific step is as follows for diameter:
1. the crossfoot 1 that length is 2B is placed in pipe under test 12, make four points on 1 upper surface of crossfoot with pipeline 12
Inner wall contact；
2. will measure linear foot 3 (from bottom to top from 1 lower end surface of crossfoot) is assembled to the internal chute for assembling sliding rail 2 in the middle part of crossfoot 1
In 11, when the tip 6 and 12 inner wall of pipeline that measure linear foot 3 contact, 3 tip 6 of measurement linear foot and 1 upper surface of crossfoot are measured
The distance between A；
3. calculating the numerical value of 12 internal diameter R of pipeline in conjunction with following formula one, formula two:
Formula one:Wherein, C be measure 3 tip 6 of linear foot on crossfoot 1 left and right either end away from
From α is the angle measured between the line at 3 tip 6 of linear foot and 1 or so either end of crossfoot and measurement 3 longitudinal midline of linear foot；
Formula two: C2=A2+B2；
Formula three is obtained by formula one, formula two:
It brings A, B numerical value into above formula respectively, the inner diameter values of pipeline 12 can be calculated.
It can be seen from the above, inside diameter gauge structure of the present invention is simple and design is especially ingenious, pass through simple operations and meter
You can get it 12 inner diameter values of pipeline are calculated, whole operation is extremely convenient.When measuring circular arc internal diameter of the circular arc less than 1/2 perimeter, with
Upper advantage is more significant.
Embodiment two:
As shown in figure 4, the inside diameter gauge structure in the present embodiment is substantially the same with embodiment one, the difference is that, this
It is not provided with scale on measurement linear foot 3 in embodiment, arrow 7 is installed without on assembly sliding rail 2, instead
Digital display device 13 is installed on measurement linear foot 3, length value A is immediately arrived at by digital display device 13.Digital display device 13 is current
Conventional equipment, using relatively broad on the measuring tools such as digital display calliper, structural principle is as shown in figure 5, specifically include outer
Shell, the display screen 14 of setting on the shell and the rolling screen 17 in shell, photoelectric sensor 19, integrated chip 15,
It rolls on the central axis 16 of the installation of screen 17 inside the shell and is rolled around central axis 16, it is uniformly distributed on the circumference for rolling screen 17
There is cut hole 18, photoelectric sensor 19 records 18 numbers of inswept cut hole and it is transmitted to integrated chip 15, and integrated chip 15 passes through
Formula conversion calculates, and passes data to the output of display screen 14.
In practical application, can also be by three typing integrated chip 15 of above formula, directly by measured pipeline 12
Internal diameter R is shown.
Length 2B by changing crossfoot 1 can be obtained the inside diameter gauge of different ranges.
Claims (8)
1. a kind of inside diameter gauge, it is characterised in that: including orthogonal crossfoot (1) and measurement linear foot (3)；Crossfoot (1) is in
The assembly sliding rail (2) in portion and ruler portion (10) composition being symmetrically fixed at left and right sides of assembly sliding rail (2)；Measure linear foot (3) assembly
It can slide up and down in the internal chute (11) of assembly sliding rail (2) and along internal chute (11)；Two ruler portions (10) of crossfoot (1) and survey
Amount linear foot (3) is generally aligned in the same plane, and measurement linear foot (3) front end is tip (6), which is located at the longitudinal center of crossfoot (1)
On line；The length 2B of crossfoot (1) is fixed value.
2. inside diameter gauge according to claim 1, it is characterised in that: there are scale value (4) in measurement linear foot (3), point
Holding (6) corresponding scale is 0.
3. inside diameter gauge according to claim 2, it is characterised in that: install arrow (7) in assembly sliding rail (2), refer to
Show the scale that arrow (7) are directed toward in measurement linear foot (3).
4. inside diameter gauge according to claim 1, it is characterised in that: measurement linear foot (3) installation digital display device (13).
5. inside diameter gauge according to any one of claims 1 to 4, it is characterised in that: be provided with and interior cunning in assembly sliding rail (2)
The threaded hole that slot (11) communicates, clamping screw (9), can be fixed by measurement linear foot (3) locking from outside and threaded hole Screw assembly
Position.
6. inside diameter gauge according to any one of claims 1 to 4, it is characterised in that: front, the rear portion of measurement linear foot (3)
It is respectively equipped with the first limited block (5) for preventing measurement linear foot (3) from deviating from from internal chute (11), the second limited block (8), and at least
There is a limited block with measurement linear foot (3) using seperated connection.
7. inside diameter gauge according to any one of claims 1 to 4, it is characterised in that: measurement linear foot (3) front width by
It is decrescence small, until tip (6).
8. a kind of method using the inside diameter gauge measurement internal diameter of the pipeline any in claim 1~7, it is characterised in that: packet
Include following steps:
1. the crossfoot (1) that length is 2B is placed in pipe under test (12), make four points on crossfoot (1) upper surface and pipeline
(12) inner wall contacts；
2. linear foot (3) will be measured to be assembled in the middle part of crossfoot (1) in the internal chute (11) of assembly sliding rail (2), when measurement linear foot (3)
When tip (6) and pipeline (12) inner wall contact, hanging down between the tip (6) and crossfoot (1) upper surface of measurement linear foot (3) is measured
Directly distance A；
3. calculating the numerical value of pipeline (12) internal diameter R in conjunction with following formula one, formula two:
Formula one:Wherein, C be measure left and right either end on linear foot (3) tip (6) and crossfoot (1) away from
From α is to measure between the tip (6) of linear foot (3) and the line of crossfoot (1) left and right either end and measurement linear foot (3) longitudinal midline
Angle；
Formula two: C2=A2+B2；
Formula three is obtained by formula one, formula two
It brings A, B numerical value into formula three respectively, the inner diameter values of pipeline (12) can be calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645039.3A CN109443166A (en) | 2018-12-29 | 2018-12-29 | Inside diameter gauge and the method for measuring internal diameter of the pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645039.3A CN109443166A (en) | 2018-12-29 | 2018-12-29 | Inside diameter gauge and the method for measuring internal diameter of the pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109443166A true CN109443166A (en) | 2019-03-08 |
Family
ID=65542322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811645039.3A Withdrawn CN109443166A (en) | 2018-12-29 | 2018-12-29 | Inside diameter gauge and the method for measuring internal diameter of the pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109443166A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579168A (en) * | 2019-06-29 | 2019-12-17 | 上海二十冶建设有限公司 | method for quickly and accurately positioning central point of large-diameter circular pipeline |
| CN111481271A (en) * | 2020-05-09 | 2020-08-04 | 北京梅德厚普科技有限公司 | Movable cross square ruler |
| CN112629382A (en) * | 2020-12-09 | 2021-04-09 | 广东电网有限责任公司中山供电局 | Cable bending radius measuring device |
-
2018
- 2018-12-29 CN CN201811645039.3A patent/CN109443166A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579168A (en) * | 2019-06-29 | 2019-12-17 | 上海二十冶建设有限公司 | method for quickly and accurately positioning central point of large-diameter circular pipeline |
| CN111481271A (en) * | 2020-05-09 | 2020-08-04 | 北京梅德厚普科技有限公司 | Movable cross square ruler |
| CN112629382A (en) * | 2020-12-09 | 2021-04-09 | 广东电网有限责任公司中山供电局 | Cable bending radius measuring device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190308 |
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| WW01 | Invention patent application withdrawn after publication |