CN215984321U - Device for online digital measurement of large-diameter pipeline outer diameter - Google Patents
Device for online digital measurement of large-diameter pipeline outer diameter Download PDFInfo
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- CN215984321U CN215984321U CN202122232180.4U CN202122232180U CN215984321U CN 215984321 U CN215984321 U CN 215984321U CN 202122232180 U CN202122232180 U CN 202122232180U CN 215984321 U CN215984321 U CN 215984321U
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- 238000005259 measurement Methods 0.000 title claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 42
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000004429 Calibre Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a device for online digital measurement of the outer diameter of a large-diameter pipeline, which comprises a stator and an elastic measuring scale; the stator is provided with fixed brackets with equal height at two sides, and the two sides of each fixed bracket are attached to the outer side surface of the pipeline; the elastic measuring scale comprises a scale frame and a movable scale which vertically penetrates through the scale frame and can slide up and down along the scale frame; the moving direction of the moving ruler is vertical to the upper end face of the fixed support, the moving ruler is arranged at the middle point of the upper end face of the fixed support, a positioning plate and a return spring are further arranged in the ruler frame, the positioning plate is fixed on the moving ruler, one end of the return spring is fixed on the positioning plate, and the other end of the return spring is fixed on the ruler frame; the movable ruler is provided with a digital displacement measuring device, and the outer diameter of the pipeline is obtained by monitoring displacement change by the digital displacement measuring device and calculating the size of the fixed support. The utility model can accurately find the actual outer diameter of the pipeline; accurate measurement is carried out through the digital displacement measuring device, and the measuring precision is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of measurement, and particularly relates to a device for online digital measurement of the outer diameter of a large-diameter pipeline.
Background
The external diameter measurement of present online pipeline is through flexible tape measure pipeline semicircle basically, and then calculates through the circumference, and this process has a lot of problems: firstly, an accurate diameter point of a pipeline is not easy to find by using a flexible measuring tool, an auxiliary tool is required to be used for searching in a clamping mode, the length of the tool is required to be larger than the outer diameter, and the measuring range is limited; secondly, the actual pipeline, especially the large pipeline, is mostly buried underground or placed in a tunnel, so that the actual environment is severe and the searching of the outer diameter straight line is not facilitated; the tape is used for measuring the radius arc, certain errors exist in the tape, the tape can expand with heat and contract with cold due to the factors of temperature and environment, and great errors exist in the measuring tool; measuring errors caused by positive center deviation (two measuring points are not on a uniform straight line, namely, the diameter is not true) in the measuring process of the tape; and fifthly, the pipeline is paved on line and cannot be disassembled, and the cross section structure cannot be damaged for real-time and accurate measurement. In view of the above problems, there is a need for a device that can easily obtain the outer diameter of a large diameter pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for online digital measurement of the outer diameter of a large-diameter pipeline, which aims to solve the problems in the background art.
In order to achieve the above object, an embodiment of the present invention provides an apparatus for online digital measurement of an outer diameter of a large-diameter pipeline, which is characterized by comprising a stator and an elastic measurement ruler; the stator is provided with fixed brackets with equal height at two sides, and two sides of each fixed bracket are attached to the outer side surface of the pipeline; the elastic measuring scale comprises a scale frame and a movable scale which vertically penetrates through the scale frame and can slide up and down along the scale frame; the moving direction of the moving ruler is perpendicular to the upper end face of the fixed support, the moving ruler is arranged at the midpoint of the upper end face of the fixed support, a positioning plate and a return spring are further arranged in the ruler frame, the positioning plate is fixed on the moving ruler, one end of the return spring is fixed on the positioning plate, and the other end of the return spring is fixed on the ruler frame; the digital displacement measuring device is arranged on the movable ruler and used for detecting displacement changes of the movable ruler along with different pipeline calibers, and the pipeline calibers are obtained through the displacement changes monitored by the digital displacement measuring device and the size of the fixed support.
Furthermore, the fixed support comprises a transverse surface and vertical surfaces arranged at two ends of the transverse surface.
Preferably, the lowermost parts of the two vertical surfaces of the fixed support are set to be in the shape of an isosceles triangle.
Further, the ruler frame can be fixed above the fixed support through a support or fixed at the front end of the fixed support.
Preferably, when the ruler frame is fixed, the movable ruler is kept perpendicular to the upper end face of the fixed support, and the left side and the right side of the fixed support are symmetrical relative to the movable ruler.
Further, the lowest position of the movable ruler is set to be in an isosceles triangle shape.
Furthermore, the digital displacement measuring device monitors that the displacement change is L, the distance between two vertical surfaces of the fixed support and a pipeline contact point is D, the outer diameter size is calculated according to a trigonometric function,
calculating the outer diameter R of the pipeline according to the calculation result;
furthermore, the digital displacement measuring device is provided with a touch display screen and a displacement sensor, and the touch display screen can be used for displaying the moved distance.
Preferably, a single chip microcomputer is arranged in the digital displacement measuring device, a function for calculating the outer diameter R of the pipeline is arranged in a control program in the single chip microcomputer, and the size of the outer diameter R of the pipeline can be displayed by the touch display screen.
The technical scheme of the utility model has the following beneficial effects:
(1) the device for online digital measurement of the outer diameter of the large-diameter pipeline does not need an auxiliary tool to search a diameter line measuring point when measuring the outer diameter of the pipeline, and does not need a flexible measuring tool to measure a semicircular arc around the pipeline; measurement accumulation errors caused by a plurality of operation flows can be avoided; the device can accurately find the actual outer diameter of the pipeline; accurate measurement is carried out through the digital displacement measuring device, and the measuring precision is guaranteed.
(2) According to the utility model, the singlechip is arranged in the digital displacement measuring device, and the D value is input through the touch display screen, so that digital automatic calculation can be realized, the operation is simplified, and meanwhile, the accumulated error caused by the operation process is reduced through integrated calculation.
Drawings
Fig. 1 is a schematic structural diagram of a stator and an elastic measuring scale of the utility model for measuring the outer diameter of a large-diameter pipeline.
Fig. 2 is a schematic diagram of the internal structure of the elastic measuring scale of the present invention.
Fig. 3 is a measurement schematic diagram of the present invention.
Description of reference numerals: 1. fixing a bracket; 11. a transverse plane; 12. a vertical plane; 2. an elastic measuring scale; 21. a ruler frame; 22. moving the ruler; 23. positioning a plate; 24. a return spring; 25. a displacement sensor; 3. a support; a conduit 4.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the device for on-line digital measurement of the outer diameter of the large-caliber pipeline comprises a stator and an elastic measuring scale 2.
In the embodiment, the stator is provided with a fixed support 1 with two equal-height sides, and two sides of the fixed support 1 are attached to the outer side surface of the pipeline 4; preferably, the fixing bracket 1 includes a transverse surface 11 and vertical surfaces 12 disposed at both ends of the transverse surface 11. Preferably, the lowest of the two vertical surfaces 12 of the fixing bracket 1 is set to be in the shape of an isosceles triangle. In use, the required value of D can be obtained by measuring the width of the transverse face 11 in advance. When measuring, it should be noted that the lowest ends of the two vertical surfaces 12 of the fixed bracket 1 are required to be contacted with the large-caliber pipeline 4. The width of the transverse surface 11 and the height of the vertical surface 12 of the fixed bracket 1 are based on the outer diameter of the pipeline to be measured actually, the width of the transverse surface 11 should ensure that the bottoms of the two vertical surfaces are both contacted with the pipeline 4, the height of the vertical surface 12 can ensure that the movable ruler 22 still has a movable space when the bottom of the vertical surface 12 is contacted with the pipeline 4, and the width of the transverse surface 11 of the fixed bracket 1 is preferably in a range between 0.8R and 1.2R.
As shown in fig. 2, the elastic measuring ruler 2 comprises a ruler frame 21, a moving ruler 22 vertically passing through the ruler frame 21 and capable of sliding up and down along the ruler frame 21; the moving direction of the moving ruler 22 is perpendicular to the upper end face of the fixed support 1, the moving ruler 22 is arranged at the midpoint of the upper end face of the fixed support 1, a positioning plate 23 and a return spring 24 are further arranged in the ruler frame 21, the positioning plate 23 is fixed on the moving ruler 22, one end of the return spring 24 is fixed on the positioning plate 23, and the other end of the return spring 24 can be fixed on the ruler frame 21 in a bolt mode or the like; the movable ruler 22 is provided with a digital displacement measuring device, and the digital displacement measuring device is used for detecting displacement changes of the movable ruler 22 along with calibers of different pipelines 4. In this embodiment, the frame 21 can be fixed above the fixing bracket 1 or at the front end of the fixing bracket 1 by a support 3. In the drawing of the embodiment, the ruler frame 21 is fixed above the fixed bracket 1 by the support 3, as indicated in fig. 1, preferably, the ruler frame 21 is fixed to keep the movable ruler 22 perpendicular to the upper end surface of the fixed bracket 1 and ensure that the left and right sides of the fixed bracket 1 are symmetrical relative to the movable ruler 22. Preferably, the lowest position of the movable ruler 22 is set in the shape of an isosceles triangle.
In this embodiment, as shown in fig. 3, the caliber of the pipe 4 is obtained by the displacement change monitored by the digital displacement measuring device and the size of the fixing bracket 1. In this embodiment, the caliber of the pipe 4 is obtained by the following process, the change of displacement monitored by the digital displacement measuring device is L, the distance between the two vertical surfaces 12 of the fixed support 1 and the contact point of the pipe 4 is D, the outer diameter size is calculated by the trigonometric function,
calculating the outer diameter R of the pipeline 4 according to the calculation result;
in order to improve the measurement efficiency and accurately obtain the digitized numerical value, the digitized displacement measurement device is provided with a touch display screen and a displacement sensor 25, the displacement sensor 25 can adopt a conventional displacement sensor on the market and can be selected according to the requirement, and the detailed description is omitted; the touch display screen can be used for displaying the moved distance, and preferably, the touch display screen can input a D value. Preferably, a single chip microcomputer is arranged in the digital displacement measuring device, a function for calculating the outer diameter R of the pipeline 4 is arranged in a control program in the single chip microcomputer, and the size of the outer diameter R of the pipeline 4 can be displayed through the touch display screen. This digital displacement measurement device still can include parts such as power supply, signal processing chip, and displacement sensor 25 inputs the singlechip after the information processing that will gather, and the singlechip carries out the internal calculation back, transmits touch-control display screen display and shows, and concrete part can carry out specific configuration according to the requirement of different models, does not do here and does not describe repeatedly.
The working process of the specific embodiment of the utility model is as follows: before use, the distance between the two vertical surfaces 12 of the fixed support 1 and the contact point of the pipeline 4 is obtained in advance, and the required D value can be obtained; under the action of the return spring 24, before use, the fixed support 1 and the lowest end of the movable ruler 22 of the elastic measuring ruler 2 are in the same horizontal plane, and at the moment, the digital displacement measuring device records as an initial position; during the use, place fixed bolster 1 in the outside of heavy-calibre pipeline 4, the removal chi 22 of elastic measurement chi 2 is receiving heavy-calibre pipeline 4 pressure, upwards lifts up, and after reaching the position, digital displacement measurement device measures the distance that removal chi 22 removed, L value promptly, can obtain the required external diameter R of heavy-calibre pipeline 4 through function calculation, and the external diameter R value is obtained to this kind of method only need simple calculation, does not need more appurtenance to use very conveniently. After the use, take off fixed bolster 1, under reset spring 24's effect, remove chi 22 and reset, at this moment, can place fixed bolster 1 and the minimum of the removal chi 22 of elastic measurement chi 2 on a horizontal plane, digital displacement measurement device reacquires initial value, uses more accurately.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (9)
1. A device for online digital measurement of the outer diameter of a large-diameter pipeline is characterized by comprising a stator and an elastic measuring scale; the stator is provided with fixed brackets with equal height at two sides, and two sides of each fixed bracket are attached to the outer side surface of the pipeline; the elastic measuring scale comprises a scale frame and a movable scale which vertically penetrates through the scale frame and can slide up and down along the scale frame; the moving direction of the moving ruler is perpendicular to the upper end face of the fixed support, the moving ruler is arranged at the midpoint of the upper end face of the fixed support, a positioning plate and a return spring are further arranged in the ruler frame, the positioning plate is fixed on the moving ruler, one end of the return spring is fixed on the positioning plate, and the other end of the return spring is fixed on the ruler frame; the digital displacement measuring device is arranged on the movable ruler and used for detecting displacement changes of the movable ruler along with different pipeline calibers, and the outer diameter of the pipeline is obtained through the displacement changes monitored by the digital displacement measuring device and size calculation of the fixed support.
2. The device for on-line digital measurement of the outer diameter of the large-caliber pipeline according to claim 1, wherein the fixing support comprises a transverse surface and vertical surfaces arranged at two ends of the transverse surface.
3. The device for on-line digital measurement of the outer diameter of the large-caliber pipeline according to claim 2, wherein the lowest of the two vertical surfaces of the fixed bracket is arranged in an isosceles triangle shape.
4. The device for on-line digital measurement of the outer diameter of the large-caliber pipeline according to claim 1, wherein the ruler frame can be fixed above the fixed support or at the front position of the fixed support through a support.
5. The device for on-line digital measurement of the outer diameter of the large-diameter pipeline according to claim 4, wherein the ruler frame is fixed to keep the movable ruler perpendicular to the upper end surface of the fixed bracket and to ensure that the left and right sides of the fixed bracket are symmetrical relative to the movable ruler.
6. The device for on-line digital measurement of the outer diameter of the large-caliber pipeline according to claim 1, wherein the lowest part of the movable ruler is in the shape of an isosceles triangle.
7. The device for on-line digital measurement of the outer diameter of the large-diameter pipeline according to claim 1, wherein the digital displacement measuring device monitors the displacement change to be L, the distance between two vertical surfaces of the fixed bracket and the contact point of the pipeline is D, and the outer diameter dimension is calculated according to a trigonometric function,
calculating the outer diameter R of the pipeline according to the calculation result;
8. the device for on-line digital measurement of the outer diameter of the large-diameter pipeline according to claim 1, wherein the digital displacement measuring device comprises a touch display screen and a displacement sensor, and the touch display screen can be used for displaying the moved distance.
9. The device for on-line digital measurement of the outer diameter of the large-diameter pipeline according to claim 8, wherein a single chip microcomputer is arranged in the digital displacement measurement device, a function for calculating the outer diameter R of the pipeline is arranged in a control program in the single chip microcomputer, and the touch display screen can display the size of the obtained outer diameter R of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232180.4U CN215984321U (en) | 2021-09-15 | 2021-09-15 | Device for online digital measurement of large-diameter pipeline outer diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232180.4U CN215984321U (en) | 2021-09-15 | 2021-09-15 | Device for online digital measurement of large-diameter pipeline outer diameter |
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| Publication Number | Publication Date |
|---|---|
| CN215984321U true CN215984321U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122232180.4U Expired - Fee Related CN215984321U (en) | 2021-09-15 | 2021-09-15 | Device for online digital measurement of large-diameter pipeline outer diameter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909972A (en) * | 2022-05-19 | 2022-08-16 | 南通市计量检定测试所 | Pipeline axis parallel line positioning device, section positioning device and positioning method |
-
2021
- 2021-09-15 CN CN202122232180.4U patent/CN215984321U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909972A (en) * | 2022-05-19 | 2022-08-16 | 南通市计量检定测试所 | Pipeline axis parallel line positioning device, section positioning device and positioning method |
| CN114909972B (en) * | 2022-05-19 | 2024-01-30 | 南通市计量检定测试所 | Pipeline axis parallel line positioning device, section positioning device and positioning method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220308 |