CN219957139U - Adjustable experimental device of DIC system for detecting four-point bending strain of pipeline - Google Patents
Adjustable experimental device of DIC system for detecting four-point bending strain of pipeline Download PDFInfo
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- CN219957139U CN219957139U CN202320976467.4U CN202320976467U CN219957139U CN 219957139 U CN219957139 U CN 219957139U CN 202320976467 U CN202320976467 U CN 202320976467U CN 219957139 U CN219957139 U CN 219957139U
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- rotating shaft
- point bending
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- 238000013001 point bending Methods 0.000 title claims abstract description 19
- 230000005291 magnetic effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005294 ferromagnetic effect Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable experimental device of a DIC system for detecting four-point bending strain of a pipeline, which comprises a square simple bracket, wherein the upper end of the square simple bracket is provided with a magnetic fixing mechanism for fixing the square simple bracket on the pipeline to be detected; diagonal positions on the front side surface and the rear side surface of the square simple support are respectively fixed with an inclined strut, a rotating shaft is inserted on the inclined strut in the front-back direction, a reflecting mirror is fixed between the front rotating shaft and the rear rotating shaft, the front end of the rotating shaft on the front side is fixed with a handle for rotating the reflecting mirror, and the rear end of the rotating shaft on the rear side is provided with a reflecting mirror locking mechanism for fixing the angle of the reflecting mirror so that the reflecting mirror cannot rotate; the utility model solves the problem that the traditional camera bracket is difficult to apply in a pipeline four-point bending experiment.
Description
Technical Field
The utility model belongs to the field of pipeline detection, and particularly relates to an adjustable experimental device for a DIC system for pipeline four-point bending strain detection.
Background
In a four-point bending test of a pipeline, a DIC detection system generally adopts a tripod clamping camera to shoot a detection point, so that a shooting visual angle and a visual distance are fixed; when the pipeline atress is vertical down, the DIC camera sets up under the monitored point, and pipeline downward deformation can compress the space of its below, receives the place influence to and the influence of camera tripod and DIC camera own volume, leads to the pipeline lower part available measuring space to reduce greatly, and the distance between DIC camera and the detected point can shorten after the pipeline top is pressed, and the displacement is very big can lead to the camera to lose focus, and the sight that needs again is not enough can't accomplish to focus. In addition, because the surface of the pipeline has a certain radian, the field application of the technology is difficult to carry out by adopting a common tripod support.
Disclosure of Invention
The utility model aims at: in order to solve the problem that the existing camera support is difficult to apply in a four-point bending experiment of a pipeline, the adjustable experimental device of the DIC system for detecting the strain of the four-point bending of the pipeline is provided.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
The adjustable experimental device of the DIC system for detecting the four-point bending strain of the pipeline comprises a square simple bracket, wherein the upper end of the square simple bracket is provided with a magnetic fixing mechanism for fixing the square simple bracket on the pipeline to be detected; diagonal positions on the front side surface and the rear side surface of the square simple support are respectively fixed with an inclined strut, a rotating shaft is inserted on the inclined strut in the front-back direction, a reflecting mirror is fixed between the front rotating shaft and the rear rotating shaft, the front end of the rotating shaft on the front side is fixed with a handle for rotating the reflecting mirror, and the rear end of the rotating shaft on the rear side is provided with a reflecting mirror locking mechanism for fixing the angle of the reflecting mirror so that the reflecting mirror cannot rotate; the right side of the square simple bracket is provided with a sight distance adjusting mechanism, and the sight distance adjusting mechanism is provided with a camera for adjusting the distance between the camera and the reflector.
As a further description of the above technical solutions.
The four corners of the upper end of the square simple support are respectively fixed with a universal joint, the upper ends of the universal joints are fixed with ferromagnetic bonding pads, and the universal joints and the ferromagnetic bonding pads form a magnetic attraction fixing mechanism.
As a further description of the above technical solutions.
The inclined strut is provided with a through hole at the front and the back, and the rotating shaft is arranged in the through hole.
As a further description of the above technical solutions.
The through hole on the inclined strut at the rear side is internally provided with a thread, a reflector locking bolt is connected with the through thread, and the thread in the through hole and the reflector locking bolt jointly form a reflector locking mechanism.
As a further description of the above technical solutions.
The front side of the inclined stay bar on the front side is fixedly provided with a circular dial which is coaxial with the rotating shaft, and when the handle is placed in a horizontal position, the upper end face of the handle passes through the shaft center of the rotating shaft.
As a further description of the above technical solutions.
Two square pipes facing right are symmetrically fixed on the right side of the square simple bracket in front-back mode, each square pipe is internally provided with a square rod, and a cross brace rod is fixed between the right ends of the two square rods; the square tube is provided with a front threaded hole and a rear threaded hole, the threaded hole is internally connected with a square rod fixing bolt in a threaded manner, and the square tube, the square rod, the cross brace, the threaded hole and the square rod fixing bolt jointly form a vision distance adjusting mechanism.
As a further description of the above technical solutions.
The camera is arranged on the transverse supporting rod, and the lower end of the camera is provided with a camera fixing bolt inserted in the through groove.
In summary, the technical scheme has the beneficial effects that.
(1) According to the utility model, the reflector is adjusted, so that the camera directly shoots the to-be-measured point and converts the to-be-measured point into the real image of the to-be-measured point in the reflector shot by the camera, the sight distance of the camera is increased on the premise of not changing forward shooting of the to-be-measured point, and the problem that the camera cannot shoot due to insufficient space in a four-point bending test of a pipeline is solved.
(2) The utility model can adjust the sight distance of the camera, the front and back positions of the camera and the like, and has less influence on the tested environment.
(3) The utility model can be quickly fixed on a pipeline through the universal joint and the ferromagnetic bonding pad, and the direction of the loading force vertically passes through the square simple support 1 only when the square simple support 1 is fixed on the surface to be tested of the pipeline through the ferromagnetic bonding pad 8, so that the device can be used for testing the pipeline loading to enable the point to be tested to vertically deform downwards, and the device can be used for testing the pipeline by applying loading force at any angle.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is a cross-sectional view A-A of fig. 2.
Fig. 4 is a sectional view of B-B in fig. 2.
Fig. 5 is a cross-sectional view of C-C in fig. 4.
Fig. 6 is a schematic perspective view of the mirror 4, the handle 5, the dial 11, and the shaft 3.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution of an adjustable experimental device for detecting DIC system for four-point bending strain of a pipeline.
The utility model provides a pipeline four-point bending strain detection DIC system adjustable experimental device, includes square simple support 1, and square simple support 1 upper end is equipped with magnetism and inhales fixed establishment for fixed square simple support 1 on the pipeline that awaits measuring; diagonal positions on the front side and the rear side of the square simple bracket 1 are respectively fixed with an inclined strut 2, a rotating shaft 3 is inserted on the inclined strut 2 front and back, a reflecting mirror 4 is fixed between the front rotating shaft 3 and the rear rotating shaft 3, a handle 5 is fixed at the front end of the front rotating shaft 3 and used for rotating the reflecting mirror 4, and a reflecting mirror locking mechanism is arranged at the rear end of the rear rotating shaft 3 and used for fixing the angle of the reflecting mirror 4 so that the reflecting mirror cannot rotate; the right side of the square simple bracket 1 is provided with a sight distance adjusting mechanism, and the sight distance adjusting mechanism is provided with a camera 6 for adjusting the distance between the camera 6 and the reflector 4.
The four corners of square simple support 1 upper end all be fixed with a universal joint 7, universal joint 7 upper end is fixed with strong magnetism bonding pad 8, universal joint 7 and strong magnetism bonding pad 8 constitute the magnetism jointly and inhale fixed establishment.
The inclined strut 2 is provided with a through hole 9 at the front and back, and the rotating shaft 3 is arranged in the through hole 9.
Threads are arranged in the through holes 9 on the inclined stay bars 2 at the rear side, a reflector locking bolt 10 is connected through the threads, and the threads in the through holes 9 and the reflector locking bolt 10 jointly form a reflector locking mechanism.
The front side of the inclined stay bar 2 at the front side is fixed with a circular dial 11 coaxial with the rotating shaft 3, and when the handle 5 is placed in a horizontal position, the upper end surface of the handle 5 passes through the axis of the rotating shaft 3.
Two square pipes 12 facing right are symmetrically fixed on the right side of the square simple bracket 1 in front-back, each square pipe 12 is internally provided with a square rod 13, and a transverse supporting rod 14 is fixed between the right ends of the two square rods 13; the square tube 12 is provided with a front threaded hole 15 and a rear threaded hole 15, a square rod fixing bolt 16 is connected in the threaded hole 15 in a threaded manner, and the square tube 12, the square rod 13, the cross brace 14, the threaded hole 15 and the square rod fixing bolt 16 jointly form a vision distance adjusting mechanism.
The upper end surface of the transverse supporting rod 14 is provided with a through groove 17 extending along the length direction, the camera 6 is arranged on the transverse supporting rod 14, and the lower end of the camera 6 is provided with a camera fixing bolt 18 inserted in the through groove 17.
The working principle is as follows.
Firstly, fixing a square simple bracket 1 on a surface to be measured of a pipeline through a ferromagnetic bonding pad 8, and enabling a reflector 4 to be arranged below a point to be measured; the distance from the camera 6 to the reflector 4 is adjusted by pulling the square rod 13 to move in the square tube 12, and the square rod fixing bolt 16 is screwed down to enable the square rod 13 and the square tube 12 to be relatively fixed; the camera 6 is fixed on the transverse strut 14 by screwing the camera fixing bolt 18 through sliding the camera 6 back and forth on the transverse strut 14 to adjust the front and back positions of the camera 6; the angle of the reflector 4 is finely adjusted by rotating the handle 5, so that a real image formed in the reflector 4 at a to-be-measured point falls in the field of view of the camera 6, and the reflector locking bolt 10 is screwed down to fix the angle of the reflector 4 so that the reflector 4 cannot rotate; then the pipeline is loaded to enable the point to be measured to deform downwards, and the point to be measured of the pipeline can be shot through the camera 6.
It is worth noting that the utility model can be used for the test of loading the pipeline to enable the point to be tested to deform vertically downwards, and the test can be carried out by the device only by enabling the direction of the loading force to vertically pass through the square simple support 1 when the square simple support 1 is fixed on the pipeline surface to be tested through the ferromagnetic bonding pad 8.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and those skilled in the art should appreciate that the technical scheme and the inventive concept according to the present utility model are equivalent or changed within the scope of the present utility model.
Claims (7)
1. The adjustable experimental device for the pipeline four-point bending strain detection DIC system is characterized by comprising a square simple bracket (1), wherein the upper end of the square simple bracket (1) is provided with a magnetic fixing mechanism for fixing the square simple bracket (1) on a pipeline to be tested; diagonal positions on the front side and the rear side of the square simple bracket (1) are respectively fixed with an inclined strut (2), a rotating shaft (3) is inserted on the inclined strut (2) front and back, a reflecting mirror (4) is fixed between the front rotating shaft and the rear rotating shaft (3), a handle (5) is fixed at the front end of the rotating shaft (3) at the front side and used for rotating the reflecting mirror (4), and a reflecting mirror locking mechanism is arranged at the rear end of the rotating shaft (3) at the rear side and used for fixing the angle of the reflecting mirror (4) so that the reflecting mirror cannot rotate; the right side of the square simple bracket (1) is provided with a sight distance adjusting mechanism, and the sight distance adjusting mechanism is provided with a camera (6) for adjusting the distance between the camera (6) and the reflector (4).
2. The adjustable experimental device for the pipeline four-point bending strain detection DIC system according to claim 1, wherein a universal joint (7) is fixed at four corners of the upper end of the square simple bracket (1), a ferromagnetic bonding pad (8) is fixed at the upper end of the universal joint (7), and the universal joint (7) and the ferromagnetic bonding pad (8) form a magnetic attraction fixing mechanism together.
3. The adjustable experimental device for the pipeline four-point bending strain detection DIC system according to claim 1, wherein the diagonal brace (2) is provided with a through hole (9) in the front and back, and the rotating shaft (3) is arranged in the through hole (9).
4. The adjustable experimental device for the four-point bending strain detection DIC system for pipelines according to claim 3, wherein the through hole (9) on the diagonal brace (2) at the rear side is internally provided with threads, a reflector locking bolt (10) is connected with the threads, and the threads in the through hole (9) and the reflector locking bolt (10) jointly form a reflector locking mechanism.
5. The adjustable experimental device for the pipeline four-point bending strain detection DIC system according to claim 1, wherein the front side surface of the diagonal brace (2) at the front side is fixedly provided with a circular dial (11) concentric with the rotating shaft (3), and when the handle (5) is placed in a horizontal position, the upper end surface of the handle (5) passes through the axle center of the rotating shaft (3).
6. The adjustable experimental device for the four-point bending strain detection DIC system of the pipeline according to claim 1, wherein two square tubes (12) facing right are symmetrically fixed on the right side of the square simple bracket (1), a square rod (13) is inserted into each square tube (12), and a transverse supporting rod (14) is fixed between the right ends of the two square rods (13); the square tube (12) is provided with a front threaded hole (15) and a rear threaded hole (15), the threaded hole (15) is internally connected with a square rod fixing bolt (16), and the square tube (12), the square rod (13), the cross brace (14), the threaded hole (15) and the square rod fixing bolt (16) form a vision distance adjusting mechanism together.
7. The adjustable experimental device for the four-point bending strain detection DIC system of the pipeline according to claim 6, wherein the upper end face of the transverse supporting rod (14) is provided with a through groove (17) extending in the length direction, the camera (6) is arranged on the transverse supporting rod (14), and the lower end of the camera (6) is provided with a camera fixing bolt (18) inserted in the through groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976467.4U CN219957139U (en) | 2023-04-26 | 2023-04-26 | Adjustable experimental device of DIC system for detecting four-point bending strain of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976467.4U CN219957139U (en) | 2023-04-26 | 2023-04-26 | Adjustable experimental device of DIC system for detecting four-point bending strain of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957139U true CN219957139U (en) | 2023-11-03 |
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ID=88535547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976467.4U Active CN219957139U (en) | 2023-04-26 | 2023-04-26 | Adjustable experimental device of DIC system for detecting four-point bending strain of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957139U (en) |
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2023
- 2023-04-26 CN CN202320976467.4U patent/CN219957139U/en active Active
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