CN220489923U - Digital display type inner and outer diameter measuring tool - Google Patents
Digital display type inner and outer diameter measuring tool Download PDFInfo
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- CN220489923U CN220489923U CN202320780330.1U CN202320780330U CN220489923U CN 220489923 U CN220489923 U CN 220489923U CN 202320780330 U CN202320780330 U CN 202320780330U CN 220489923 U CN220489923 U CN 220489923U
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- 210000000078 claw Anatomy 0.000 claims abstract description 74
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 2
- 210000001624 hip Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The utility model relates to a digital display type inner and outer diameter measuring tool, which comprises a first ruler body and a second ruler body which are mutually pivoted, wherein the first ruler body is also provided with a first claw which can rotate relatively with the end part of the first ruler body and can be fixed, the second ruler body is provided with a second claw which can rotate relatively with the end part of the second ruler body and can be fixed, the first claw and the second claw are both provided with clamping points which are used for propping against the inner wall or the outer wall of a pipeline, the straight line distance a from the pivot joint of the first ruler body and the second ruler body to the clamping point of the first claw is equal to the straight line distance b from the pivot joint of the first ruler body and the second ruler body to the clamping point of the second claw, and the measuring tool also comprises an angle sensor which is used for measuring the angle of an included angle formed between the first ruler body and the second ruler body, and a digital display module which is used for calculating the inner diameter or the outer diameter according to the angle data transmitted by the angle sensor and displaying the angle data. The digital display type inner and outer diameter measuring tool can overcome the defects of inaccurate measurement and complicated operation of old pipelines in the prior art.
Description
Technical Field
The utility model relates to the field of oilfield pipeline measurement, in particular to a digital display type inner and outer diameter measuring tool.
Background
Along with frequent operations such as production development, operation maintenance, equipment replacement and the like of an oil and gas field, new standards such as oilfield facility equipment valves are continuously replaced and applied, some old equipment, old facilities and old standard valves cannot be replaced with new standard valve facility equipment, and when custom processing is required, the inner diameter and the outer diameter of the valve facility equipment need to be accurately measured at the moment, so that accurate dimensions are provided for the custom processing. The existing measuring device has low measuring precision, and mainly relies on naked eyes to determine measured data, and in addition, the measuring operation mode is complex.
Disclosure of Invention
The utility model provides a digital display type inner and outer diameter measuring tool which can overcome the defects of inaccurate measurement and complicated operation of old pipelines in the prior art.
The utility model relates to a digital display type inner and outer diameter measuring tool, which comprises a first ruler body and a second ruler body which are mutually pivoted, wherein the first ruler body is also provided with a first claw which can rotate relatively and can be fixed relative to the end part of the first ruler body, the second ruler body is provided with a second claw which can rotate relatively and can be fixed relative to the end part of the second ruler body, the first claw and the second claw are respectively provided with a clamping point which is used for propping against the inner wall or the outer wall of a pipeline, the straight line distance a from the pivot joint of the first ruler body and the second ruler body to the clamping point of the first claw is equal to the straight line distance b from the pivot joint of the first ruler body and the second ruler body to the clamping point of the second claw, and the measuring tool also comprises an angle sensor which is used for measuring the angle of an included angle formed between the first ruler body and the second ruler body, and a digital display module which is used for calculating the inner diameter or the outer diameter according to the angle data transmitted by the angle sensor and displaying the calculated inner diameter or the outer diameter.
Preferably, the first ruler body and the second ruler body are respectively provided with a connecting column, the first claw and the second claw are respectively fixed with a connecting screw cap, the connecting screw caps are matched with the connecting columns through threads to enable the first claw to be connected with the first ruler body, the second claw to be connected with the second ruler body, and the measuring tool further comprises a locking device for locking the relative position of the first claw and the first ruler body and the relative position of the second claw and the second ruler body respectively. The locking device comprises a locking nut fixed with the connecting column and a locking screw with one end penetrating through the wall of the connecting nut and matched with the locking nut, and the axis of the locking screw is perpendicular to the axis of the connecting nut. Or the locking device comprises a threaded hole formed in the connecting column and a locking screw with one end penetrating through the wall of the connecting nut and matched with the threaded hole, and the axis of the locking screw is perpendicular to the axis of the connecting nut.
As another preferable scheme, the first ruler body and the second ruler body are respectively provided with a connecting hole, the first claw and the second claw are respectively fixed with a connecting column, the connecting column is matched with the connecting holes through threads to enable the first claw to be connected with the first ruler body, the second claw is connected with the second ruler body, and the measuring tool further comprises a locking device which is used for locking the relative position of the first claw and the first ruler body and the relative position of the second claw and the second ruler body respectively. The locking device comprises a locking nut fixed with the connecting column and a locking screw with one end penetrating through the wall of the connecting hole and matched with the locking nut. Or, the locking device comprises a threaded hole formed in the connecting column and a locking screw with one end penetrating through the wall of the connecting hole and matched with the threaded hole.
Preferably, the first claw and the second claw are arc-shaped, and the shape and the size of the first claw and the second claw are identical.
Preferably, the measuring tool is further provided with a button cell for supplying power to the digital display module and the angle sensor.
Compared with the prior art, the utility model has the following beneficial effects:
1. the digital display type inner and outer diameter measuring tool is simple in structure, the inner diameter or the outer diameter can be obtained only by abutting the clamping point of the first clamping jaw and the clamping point of the second clamping jaw against the inner wall of the pipeline or against the outer wall of the pipeline at the same time, the digital display type inner and outer diameter measuring tool is simple to operate, measurement data are not required to be judged by human eyes and calculated by human brains, the measurement data are more accurate, and meanwhile only the data displayed by the digital display module are required to be read, and the digital display type inner and outer diameter measuring tool is simple and convenient to operate.
2. The first ruler body and the first claw and the second ruler body and the second claw of the digital display type inner and outer diameter measuring tool are respectively connected through threads, the angle of the claw relative to the ruler body can be adjusted through rotating the claw, the angle adjusting mode is simple and quick through the connecting mode, the relative position between the first ruler body and the first claw is locked through the locking device, and therefore the measuring tool is stable in structure. Meanwhile, the disassembling and assembling operations between the clamping jaw and the ruler body are simple and convenient, and when one part is problematic, the clamping jaw can be replaced conveniently.
Drawings
FIG. 1 is a schematic diagram of a digital display type tool for measuring inner diameter and outer diameter of a pipeline according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram of a digital display type tool for measuring the inner and outer diameters of pipes according to an embodiment of the present utility model.
FIG. 3 is a schematic diagram of a digital display type tool for measuring inner and outer diameters according to an embodiment of the present utility model.
Fig. 4 is a schematic diagram illustrating a structure of a first locking device of a digital display type tool for measuring inner and outer diameters according to an embodiment of the present utility model.
Fig. 5 is a schematic structural view of a first locking device of a digital display type tool for measuring inner and outer diameters according to an embodiment of the present utility model.
Fig. 6 is a schematic diagram showing a structure of a first locking device of a digital display type tool for measuring inner and outer diameters according to a bottom view of an embodiment of the present utility model.
Reference numerals
1 first blade, 2 second blade, 3 first jack catch, 31 stuck point, 4 second jack catch, 41 stuck point, 5 digital display module, 6 first connecting nut, 7 second connecting nut, 8 button cell, 9 first locking device, 91 first locking screw, 92 first locking nut, 10 first spliced pole.
Detailed Description
The utility model provides a digital display type inside and outside diameter measuring tool, as shown in fig. 1 and 2, the measuring tool comprises a first ruler body 1 and a second ruler body 2 which are mutually pivoted, the first ruler body 1 is also provided with a first claw 3 which can rotate relatively with the end parts of the first ruler body and can be fixed, the second ruler body 2 is provided with a second claw 4 which can rotate relatively with the end parts of the second ruler body and can be fixed, the first claw 3 and the second claw 4 respectively have clamping points 31 and 41 for abutting against the inner wall or the outer wall of a pipeline, the straight line distance a from the pivot joint of the first ruler body 1 and the second ruler body 2 to the clamping point 31 of the first claw 3 is equal to the straight line distance b from the pivot joint of the first ruler body 1 and the second ruler body 2 to the clamping point 41 of the second claw 4, and the measuring tool also comprises an angle sensor (not shown in the figure) for measuring an included angle formed between the first ruler body 1 and the second ruler body 2, and a digital display module 5 for calculating and displaying the calculated inside diameter or the calculated outside diameter according to the angle data transmitted from the angle sensor.
When the digital display type inner and outer diameter measuring tool is used, the first clamping jaw 3 and the second clamping jaw 4 are simultaneously propped against the inner wall or the outer wall of a pipeline, the angle between the two ruler bodies is measured through the angle sensor, and the straight line distance c between the clamping point 31 of the first clamping jaw 3 and the clamping point 41 of the second clamping jaw 4, namely the inner diameter or the outer diameter to be measured, is calculated according to the measured angles, a and b. Referring to fig. 3, a and b are known, and a=b, the lengths of two waists of the isosceles triangle in fig. 3 are a and b, respectively, the included angle of the two waists is +.1, the length of the bottom of the isosceles triangle is c, that is, the inner diameter or the outer diameter to be calculated, and the specific calculation method is as follows:
making a perpendicular bisector from the C side, dividing the triangle into two right-angled triangles, c=c1+c2, and c1=c2, +.1+.2+.3, and+.2+.3=1/2+.1, the angle of+.1 has been measured by the angle sensor, then, sequentially calculating by the following formula,
c1＝sin∠2*a
c＝c1*2
and c, namely the inner diameter or the outer diameter to be measured can be obtained.
The digital display type inner and outer diameter measuring tool is simple in structure, the inner diameter or the outer diameter can be obtained only by abutting the clamping point 31 of the first clamping jaw 3 and the clamping point 41 of the second clamping jaw 4 against the inner wall of the pipeline or against the outer wall of the pipeline, the digital display type inner and outer diameter measuring tool is simple to operate, measurement data are not required to be judged by human eyes and calculated by human brains, the measurement data are more accurate, and meanwhile, only the data displayed by the digital display module 5 are required to be read, and the digital display type inner and outer diameter measuring tool is simple and convenient to operate.
In this embodiment, the first blade 1 and the second blade 2 may be in a sheet structure, the first claw 3 and the second claw 4 are both arc-shaped, and the shapes and the sizes of the two are all identical, and the clamping point is located at the tail ends of the first claw 3 and the second claw 4. Angle sensor measurement the angle is measured by moving and fixed grids, and the structure and principle of the angle sensor are existing, for example, WDD-D22-M-W1 angle sensor manufactured by Shanghai European manufacturing electronic technology Co., ltd. And will not be described here. The digital display module 5 comprises a calculation module and a display for displaying calculation results. The calculation module is integrated with the display and is mounted on the first blade 1 or the second blade 2.
Fig. 4-6 show the connection of the first blade 1 and the first jaw 3, the connection of the second blade 2 and the second jaw 4 being identical to the connection of the first blade 1 and the first jaw 3. In this embodiment, the first blade 1 and the second blade 2 are respectively provided with a connecting post, the first claw 3 is fixed with a first connecting nut 6, the second claw 4 is fixed with a second connecting nut 7, the first connecting nut 6 is matched with the first connecting post 10 through threads to enable the first claw 3 to be connected with the first blade 1, the second connecting nut 7 is matched with the second connecting post through threads to enable the second claw 4 to be connected with the second blade 2, and the measuring tool further comprises a first locking device 9 for locking the relative position of the first claw 3 and the first blade 1, and a second locking device (not shown in the figure) for locking the relative position of the second claw 4 and the second blade 2. The first ruler body 1 and the first claw 3, the second ruler body 2 and the second claw 4 of the digital display type inner and outer diameter measuring tool are respectively connected through threads, the angle of the claw relative to the ruler body can be adjusted through rotating the claw, the relative position between the claw and the ruler body is locked through the locking device, the angle adjusting mode is simple and quick through the connecting mode, meanwhile, the disassembling and installing operation between the claw and the ruler body is simple, and when one part is out of order, the claw can be replaced conveniently.
As shown in fig. 5 and 6, the first locking device 9 includes a first locking nut 92 fixed to the first connecting post 10 and a first locking screw 91 having one end coupled to the first locking nut 92 through a hole (not shown) in a sidewall of the first connecting nut 6, and in this embodiment, the first locking nut 92 may be welded to the first connecting post 10, specifically, an outer wall of the first locking nut 92 is welded to one end of the first connecting post 10, and an axis of the first locking screw 91 is perpendicular to an axis of the first connecting nut 6. The structure of the second locking device is the same as that of the first locking device. The first jaw 3 is rotated such that one end of the first lock screw 91 passes through the hole of the sidewall of the first coupling nut 6 and is threadedly engaged with the threaded hole of the first lock nut 92 when the hole of the sidewall of the first coupling nut 6 is aligned with the threaded hole of the first lock nut 92. Alternatively (not shown) the locking means comprise a threaded hole provided in the coupling post and a locking screw having an end passing through the wall of the coupling nut to engage the threaded hole, the axis of the locking screw being perpendicular to the axis of the coupling nut. Namely, the threaded hole is directly formed on the connecting column, and locking can be realized through the threaded hole and the locking screw.
In another embodiment (not shown in the figure), the first blade 1 and the second blade 2 are respectively provided with a connecting hole (not shown in the figure), the first claw 3 and the second claw 4 are respectively fixed with a connecting column (not shown in the figure), the connecting column is matched with the connecting hole through threads to enable the first claw 3 to be connected with the first blade 1, the second claw 4 to be connected with the second blade 2, and the measuring tool further comprises a first locking device (not shown in the figure) for locking the relative position of the first claw 3 and the first blade 1 and a second locking device (not shown in the figure) for locking the relative position of the second claw 4 and the second blade 2.
The first locking means 9 and the second locking means each comprise a locking nut fixed to the connecting column and a locking screw having one end penetrating the wall of the connecting hole to be engaged with the locking nut. Alternatively (not shown), the locking means comprises a threaded hole provided in the connecting post and a locking screw having one end engaging the threaded hole through a wall of the connecting hole. Namely, the threaded hole is directly formed on the connecting column, and locking can be realized through the threaded hole and the locking screw.
In this embodiment, the measuring tool is further provided with a button cell 8 for supplying power to the digital display module 5 and the angle sensor.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent substitutions of the utility model will occur to those skilled in the art, which are within the spirit and scope of the utility model.
Claims (10)
1. The digital display type inner and outer diameter measuring tool is characterized by comprising a first ruler body and a second ruler body which are mutually pivoted, wherein the first ruler body is further provided with a first claw which can rotate relatively to the end part of the first ruler body and can be fixed, the second ruler body is provided with a second claw which can rotate relatively to the end part of the second ruler body and can be fixed, the first claw and the second claw are respectively provided with a clamping point which is used for propping against the inner wall or the outer wall of a pipeline, the straight line distance a from the pivot joint of the first ruler body and the second ruler body to the clamping point of the first claw is equal to the straight line distance b from the pivot joint of the first ruler body and the second ruler body to the clamping point of the second claw, and the measuring tool further comprises an angle sensor which is used for measuring an included angle formed between the first ruler body and the second ruler body, and a digital display module which is used for calculating the inner diameter or the outer diameter according to angle data transmitted by the angle sensor and displaying the calculated inner diameter or the outer diameter.
2. The measuring tool of claim 1, wherein the first blade and the second blade are respectively provided with a connecting post, the first jaw and the second jaw are respectively fixed with a connecting nut, the connecting nut is matched with the connecting post through threads to enable the first jaw to be connected with the first blade and the second jaw to be connected with the second blade, and the measuring tool further comprises locking devices for locking the relative positions of the first jaw and the first blade and the second jaw and the second blade respectively.
3. A measuring tool according to claim 2, wherein the locking means comprises a lock nut secured to the coupling post and a lock screw having one end passing through a wall of the coupling nut to engage the lock nut, the axis of the lock screw being perpendicular to the axis of the coupling nut.
4. A measuring tool according to claim 2, wherein the locking means comprises a threaded bore provided in the coupling post and a locking screw having one end engaging the threaded bore through a wall of the coupling nut, the axis of the locking screw being perpendicular to the axis of the coupling nut.
5. The measuring tool of claim 1, wherein the first blade and the second blade are respectively provided with a connecting hole, the first claw and the second claw are respectively fixed with a connecting column, the connecting column is matched with the connecting holes through threads to enable the first claw to be connected with the first blade and the second claw to be connected with the second blade, and the measuring tool further comprises locking devices for locking the relative positions of the first claw and the first blade and the second claw and the second blade respectively.
6. The measuring tool of claim 5, wherein the locking means comprises a lock nut secured to the connecting post and a lock screw having one end passing through a wall of the connecting hole to engage the lock nut.
7. The measuring tool of claim 5, wherein the locking means comprises a threaded hole formed in the connecting post and a locking screw having one end passing through a wall of the connecting hole to engage the threaded hole.
8. The measurement tool of any one of claims 1-7, wherein the first jaw and the second jaw are each arcuate in shape and are each identical in shape and size.
9. The measuring tool according to any one of claims 1-7, characterized in that the measuring tool is further provided with a button cell for powering the digital display module and the angle sensor.
10. The measuring tool of any one of claims 1-7, wherein the digital display module comprises a computing module and a display for displaying the results of the computation, the computing module being integrated with the display, the digital display module being mounted on the first blade or the second blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780330.1U CN220489923U (en) | 2023-04-11 | 2023-04-11 | Digital display type inner and outer diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780330.1U CN220489923U (en) | 2023-04-11 | 2023-04-11 | Digital display type inner and outer diameter measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220489923U true CN220489923U (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320780330.1U Active CN220489923U (en) | 2023-04-11 | 2023-04-11 | Digital display type inner and outer diameter measuring tool |
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| Country | Link |
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| CN (1) | CN220489923U (en) |
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- 2023-04-11 CN CN202320780330.1U patent/CN220489923U/en active Active
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