Pipe stress detection equipment

Abstract

The invention provides pipe stress detection equipment, and belongs to the technical field of pipe detection, the pipe stress detection equipment comprises a support frame and a motor, the side wall of the support frame is provided with a support plate, the support frame is internally provided with a bidirectional screw rod, one side of the support frame is provided with a fixing rod, the fixing rod is connected with a clamping plate and an adjusting plate, and the clamping plate is connected with a detection probe. An adjusting assembly is arranged on one side of the supporting frame, the adjusting assembly comprises a moving block, the moving block is connected with an extending plate and a lifting plate, and the device further comprises an exhaust assembly used for cleaning pipes; the positioning assembly is used for fastening the pipe; the device has the beneficial effects that a pipe is fastened through the positioning assembly, deviation of a detection result caused by shaking of the pipe is avoided, the accuracy of detection data is ensured, meanwhile, a moving block can drive an extension plate to extrude an air bag, air in the air bag is discharged from an air blowing groove hole, and the detection accuracy is improved. Therefore, dust attached to the surface of the pipe before detection is effectively cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe detection, and in particular to a pipe stress detection device. Background Art

[0002] During use, pipelines often undergo geometric deformation due to reasons such as ground collapse, which in turn causes stress concentration. At the microscopic level, atoms in the stress concentration area of the pipeline are very prone to slip motion, which may lead to an increase in the geometric deformation trend of the pipeline, a decrease in strain resistance, and an accelerated corrosion rate. Eventually, it may develop into macro defects in the pipeline, that is, causing overall damage to the stress concentration area on the pipeline. Therefore, in order to avoid the above situation, it is necessary to conduct stress testing on the pipeline in a timely manner.

[0003] During the inspection of pipes, some dust may adhere to the surface of the pipe, and the dust will scatter and absorb light. For the photoelastic method, when the light passes through the pipe, the dust will change the propagation path of the light, causing the photoelastic fringes to deform, making it difficult to accurately analyze the stress distribution. In the electronic speckle pattern interferometry method, dust will interfere with the formation of interference fringes, causing the fringes to become blurred or distorted, affecting the measurement accuracy of the stress. Dust changes the reflective properties of the pipe surface and affects the measurement of pipe surface deformation by optical inspection equipment. Because the optical inspection method relies on the analysis of reflected light from the pipe surface, the presence of dust will cause the intensity and phase of the reflected light to change, resulting in inaccurate measured deformation data, which ultimately affects the stress calculation results. How to invent a pipe stress detection device to solve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In order to make up for the above shortcomings, the present invention provides a pipe stress detection device, which aims to solve the problem that the presence of dust will cause the intensity and phase of the reflected light to change, resulting in inaccurate measured deformation data, and ultimately affecting the stress calculation results.

[0005] The present invention is achieved in that:

[0006] The present invention provides a pipe stress detection device, comprising a support frame and a motor, wherein the side wall of the support frame is provided with a support plate, a bidirectional screw is provided inside the support frame, a fixing rod is provided on one side of the support frame, the fixing rod is connected to a clamping plate and an adjustment plate, the clamping plate is connected to a detection probe, an adjustment assembly is provided on one side of the support frame, the adjustment assembly includes a moving block, the moving block is connected to an extension plate and a lifting plate, and further comprises:

[0007] An exhaust assembly, the exhaust assembly being connected to the support plate and used for cleaning the pipe;

[0008] A positioning assembly is connected to the adjustment assembly and is used to fasten the pipe.

[0009] Preferably, one end of the support frame is fixedly connected to the motor, one end of the motor passes through the side wall of the support frame and is fixedly connected to one end of the bidirectional screw rod, the other end of the bidirectional screw rod is rotatably connected to the end of the support frame away from the motor, the side wall of the support frame is fixedly connected to the support plate, and a through hole is opened on the side of the support frame close to the support plate.

[0010] Preferably, the moving block is threadedly connected to the bidirectional screw, and the moving block is slidingly connected to the inner wall of the support frame and the inner wall of the through hole respectively. One end of the moving block is fixedly connected to the extension plate, and one side of the moving block is fixedly connected to the lifting plate, and the lifting plate is arranged in an arc shape.

[0011] Preferably, a limiting slot is provided on the side wall of the lifting plate, a sliding groove is provided on the inner wall of the limiting slot, the inner wall of the sliding groove is slidingly connected to the adjustment plate, and a fastening nut is threadedly connected to one end of the adjustment plate.

[0012] Preferably, one side of the adjustment plate is fixedly connected to the fixing rod, one end of the fixing rod away from the adjustment plate is fixedly connected to the clamping plate, and one end of the clamping plate away from the fixing rod is fixedly connected to the detection probe.

[0013] Preferably, the positioning assembly includes a positioning block and a movable rod, one end of the movable rod is fixedly connected to the limiting plate, and the other end of the movable rod passes through the side wall of the clamping plate and is fixedly connected to the positioning block.

[0014] Preferably, a telescopic spring is sleeved on the outer wall of the movable rod, and the two ends of the telescopic spring are respectively fixedly connected to the side wall of the limit plate and the side wall of the splint. One of the side walls of the movable rod is provided with a vent hole, and the side wall of the limit plate is fixedly connected to a mounting tube, and one end of the vent hole is communicated with the mounting tube.

[0015] Preferably, a diversion cavity is provided inside one of the positioning blocks, and a plurality of blowing slots distributed in a linear array are provided on the inner wall of the diversion cavity. The blowing slots are arranged in a diamond shape, and the diversion cavity is connected to the vent hole.

[0016] Preferably, the exhaust assembly includes an airbag, the two ends of the airbag are respectively fixedly connected to the side walls of the support plate and the extension plate, one side of the airbag is fixedly connected to a fixing tube, the end of the fixing tube away from the airbag is fixedly connected to a telescopic hose, and the end of the telescopic hose away from the fixing tube passes through a limiting slot and is fixedly connected to the mounting tube.

[0017] The beneficial effects of the present invention are:

[0018] When inspecting the pipe, the motor drives the bidirectional screw rod to rotate, so that the moving block drives the two lifting plates to approach each other, thereby making appropriate adjustments according to the size of the pipe and expanding the scope of use. At the same time, in the process of moving the lifting plate, the fixed rod can drive the splint to move synchronously, and make the positioning block contact with the surface of the pipe. As the lifting plate continues to approach, the movable rod can slide inside the splint, and cooperate with the action of the limit plate to stretch the telescopic spring, and finally make the positioning block firmly contact with the surface of the pipe, thereby achieving the tightening of the pipe, avoiding the deviation of the inspection result caused by the shaking of the pipe, ensuring the accuracy of the inspection data and improving the reliability of the inspection; in addition, in the process of the moving blocks approaching each other, it will drive the extension plate to squeeze the airbag, so that the air inside the airbag is compressed and flows through the fixed pipe to the inside of the telescopic hose and the diversion cavity, and finally discharged through multiple blowing slots, thereby effectively cleaning the dust attached to the surface of the pipe before inspection, thereby reducing the influence of dust adhesion on the inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall right side structure of a pipe stress detection device provided by an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall left front structure of a pipe stress detection device provided by an embodiment of the present invention;

[0022] Figure 3 This is a schematic structural diagram of an exhaust component and a positioning component of a pipe stress detection device provided by an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of an adjustment component and a positioning component of a pipe stress detection device provided by an embodiment of the present invention;

[0024] Figure 5 This is a schematic structural diagram of a positioning assembly of a pipe stress detection device provided by an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the local structure of a positioning rod of a pipe stress detection device provided by an embodiment of the present invention;

[0026] Figure 7The present invention provides a pipe stress detection device. Figure 6 A magnified schematic diagram of the structure in the middle.

[0027] In the figure: 1. Support frame; 101. Through hole; 2. Motor; 3. Exhaust assembly; 31. Airbag; 32. Fixed tube; 33. Telescopic hose; 4. Adjustment assembly; 41. Extension plate; 42. Lifting plate; 43. Moving block; 44. Limiting slot; 45. Slide; 5. Clamp; 6. Positioning assembly; 61. Positioning block; 62. Movable rod; 63. Telescopic spring; 64. Limiting plate; 65. Blowing slot; 66. Vent; 67. Diversion chamber; 7. Support plate; 8. Bidirectional screw; 9. Fixed rod; 10. Adjustment plate; 11. Detection probe; 12. Fastening nut; 13. Mounting cylinder. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] Example, refer to Figure 1-Figure 7 A pipe stress detection device includes a support frame 1 and a motor 2. The side wall of the support frame 1 is provided with a support plate 7. The interior of the support frame 1 is provided with a bidirectional screw rod 8. A fixed rod 9 is provided on one side of the support frame 1. The fixed rod 9 is connected to a clamping plate 5 and an adjustment plate 10. The clamping plate 5 is connected to a detection probe 11. An adjustment component 4 is provided on one side of the support frame 1. The adjustment component 4 includes a moving block 43. The moving block 43 is connected to an extension plate 41 and a lifting plate 42. The device also includes:

[0030] Exhaust assembly 3, which is connected to the support plate 7 and is used to clean the pipe;

[0031] The positioning assembly 6 is connected to the adjustment assembly 4 and is used to fasten the pipe.

[0032] Furthermore; one end of the support frame 1 is fixedly connected to the motor 2, one end of the motor 2 passes through the side wall of the support frame 1 and is fixedly connected to one end of the bidirectional screw rod 8, the other end of the bidirectional screw rod 8 is rotatably connected to the end of the support frame 1 away from the motor 2, the side wall of the support frame 1 is fixedly connected to the support plate 7, and a through hole 101 is provided on the side of the support frame 1 close to the support plate 7; the moving block 43 is threadedly connected to the bidirectional screw rod 8, and the moving block 43 is slidably connected to the inner wall of the support frame 1 and the inner wall of the through hole 101 respectively, and one end of the moving block 43 is connected to the extension The extension plate 41 is fixedly connected, and one side of the moving block 43 is fixedly connected to the lifting plate 42, and the lifting plate 42 is arranged in an arc shape; the side wall of the lifting plate 42 is provided with a limiting slot 44, and the inner wall of the limiting slot 44 is provided with a slide groove 45, and the inner wall of the slide groove 45 is slidingly connected to the adjustment plate 10, and one end of the adjustment plate 10 is threadedly connected with a fastening nut 12; one side of the adjustment plate 10 is fixedly connected to the fixing rod 9, and the end of the fixing rod 9 away from the adjusting plate 10 is fixedly connected to the clamping plate 5, and the end of the clamping plate 5 away from the fixing rod 9 is fixedly connected to the detection probe 11.

[0033] It should be noted that: when inspecting the pipe, first place the entire device on the outside of the pipe through the handle on the support frame 1, then start the motor 2 to drive the bidirectional screw 8 to rotate, and then through the threaded connection between the moving block 43 and the bidirectional screw 8, the two lifting plates 42 can be driven closer or farther away from each other, so as to make corresponding adjustments according to the size of the pipe and expand the scope of use. In addition, the length of the slide 45 is less than the length of the limiting slot 44, so that it can be ensured that the telescopic hose 33 will not be squeezed during the movement of the adjustment plate 10, thereby ensuring the gas transmission process, and the fastening nut 12 can be loosened to allow the adjustment plate 10 to slide inside the slide 45, and the detection angle of the detection probe 11 can be changed by this, so as to achieve multi-directional adjustment, improve the detection effect and the flexibility of the equipment, and the adjustment plate 10 is limited and slid through the limiting slot 44 to avoid falling off, and the detection probe 11 can be an optical detection device.

[0034] Reference Figure 2-Figure 5 , further; the positioning assembly 6 includes a positioning block 61 and a movable rod 62, one end of the movable rod 62 is fixedly connected to the limiting plate 64, and the other end of the movable rod 62 passes through the side wall of the splint 5 and is fixedly connected to the positioning block 61; the outer wall of the movable rod 62 is sleeved with a telescopic spring 63, and the two ends of the telescopic spring 63 are respectively fixedly connected to the side wall of the limiting plate 64 and the side wall of the splint 5, one side wall of the movable rod 62 is provided with a vent hole 66, and the side wall of the limiting plate 64 is fixedly connected to the mounting tube 13, and one end of the vent hole 66 is communicated with the mounting tube 13.

[0035] It should be noted that: during the movement of the lifting plate 42, the clamping plate 5 can be driven to move synchronously through the fixing rod 9. At this time, the positioning assembly 6 connected to the clamping plate 5 will also move synchronously. As the two clamping plates 5 approach each other, the positioning block 61 can first be made to contact the surface of the pipe. As the lifting plate 42 continues to approach, the movable rod 62 can slide inside the clamping plate 5 and cooperate with the limit plate 64 to stretch the telescopic spring 63. In this process, the interaction between the telescopic spring 63 and the limit plate 64 can make the positioning block 61 firmly contact with the surface of the pipe, thereby achieving the tightening of the pipe. This tightening The solidifying effect can keep the pipe stable during the detection process, avoid deviations in the detection results due to pipe shaking, ensure the accuracy of the detection data, and limit the moving range of the detection probe 11. At the same time, the docking between the equipment and the pipe can be quickly completed. When the positioning block 61 is fastened to the surface of the pipe, it provides a limit for the moving range of the detection probe 11. During the detection process, the detection probe 11 needs to perform stress detection on the pipe within a certain range. The existence of the positioning component 6 ensures that the detection probe 11 will not exceed the reasonable detection area, so that the detection work can be carried out in an orderly manner, and the reliability of the detection is improved.

[0036] Reference Figure 2 、 Figure 3 、 Figure 6 and Figure 7 , further; a diversion chamber 67 is opened inside one of the positioning blocks 61, and a plurality of blowing slots 65 distributed in a linear array are opened on the inner wall of the diversion chamber 67, and the blowing slots 65 are arranged in a diamond shape, and the diversion chamber 67 is connected to the vent 66; the exhaust assembly 3 includes an airbag 31, and the two ends of the airbag 31 are fixedly connected to the support plate 7 and the side wall of the extension plate 41 respectively, and a fixed tube 32 is fixedly connected to one side of the airbag 31, and the end of the fixed tube 32 away from the airbag 31 is fixedly connected to the telescopic hose 33, and the end of the telescopic hose 33 away from the fixed tube 32 passes through the limiting slot 44 and is fixedly connected to the mounting tube 13.

[0037] It should be noted that: in the process of the moving blocks 43 approaching each other, the extension plate 41 will be driven to move synchronously and the telescopic hose 33 will be stretched. At this time, the extension plate 41 will gradually squeeze the airbag 31, so that the air inside the airbag 31 is compressed, and then the compressed air flows into the interior of the telescopic hose 33 through the fixed tube 32. As the air is continuously compressed, it will enter the interior of the diversion cavity 67 through the vent 66 and finally be discharged through the multiple blowing slots 65. The exhaust volume of the blowing slot 65 is less than the intake volume of the vent 66, which can improve the air The flow rate during discharge increases the cleaning effect. In addition, the air blowing slot 65 is set to a diamond shape so that the gas during discharge can be effectively blown to the surface of the pipe, thereby effectively cleaning the dust attached to the surface of the pipe before inspection, thereby reducing the influence of dust adhesion on the inspection results. The shape of the air blowing slot 65 can be adjusted according to the specific usage conditions, which can ensure that the discharged gas is effectively blown to the surface of the pipe, and after the inspection is completed, the air bag 31 is restored by resetting the moving block 43 to ensure the effect of the next use.

[0038] It should be noted that the specific model specifications of the motor and the detection probe need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0039] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A pipe stress detection device, comprising a support frame (1) and a motor (2), wherein the side wall of the support frame (1) is provided with a support plate (7), the interior of the support frame (1) is provided with a bidirectional screw rod (8), one side of the support frame (1) is provided with a fixing rod (9), the fixing rod (9) is connected to a clamping plate (5) and an adjustment plate (10), and the clamping plate (5) is connected to a detection probe (11), characterized in that: An adjustment assembly (4) is provided on one side of the support frame (1), the adjustment assembly (4) comprising a moving block (43), the moving block (43) being connected to an extension plate (41) and a lifting plate (42), and further comprising: An exhaust assembly (3), the exhaust assembly (3) being connected to the support plate (7), and the exhaust assembly (3) being used for cleaning the pipe; A positioning assembly (6) is connected to the adjustment assembly (4), and the positioning assembly (6) is used to fasten the pipe.

2. The pipe stress detection device according to claim 1, characterized in that: One end of the support frame (1) is fixedly connected to the motor (2), one end of the motor (2) passes through the side wall of the support frame (1) and is fixedly connected to one end of a bidirectional screw rod (8), the other end of the bidirectional screw rod (8) is rotatably connected to an end of the support frame (1) away from the motor (2), the side wall of the support frame (1) is fixedly connected to the support plate (7), and a through hole (101) is provided on a side of the support frame (1) close to the support plate (7).

3. The pipe stress detection device according to claim 2, characterized in that: The moving block (43) is threadedly connected to the bidirectional screw rod (8), and the moving block (43) is slidably connected to the inner wall of the support frame (1) and the inner wall of the through hole (101) respectively. One end of the moving block (43) is fixedly connected to the extension plate (41), and one side of the moving block (43) is fixedly connected to the lifting plate (42), and the lifting plate (42) is arranged in an arc shape.

4. The pipe stress detection device according to claim 3, characterized in that: A limiting slot (44) is provided on the side wall of the lifting plate (42), a sliding groove (45) is provided on the inner wall of the limiting slot (44), the inner wall of the sliding groove (45) is slidably connected to the adjustment plate (10), and a fastening nut (12) is threadedly connected to one end of the adjustment plate (10).

5. The pipe stress detection device according to claim 1, characterized in that: One side of the adjustment plate (10) is fixedly connected to the fixing rod (9), one end of the fixing rod (9) away from the adjustment plate (10) is fixedly connected to the clamping plate (5), and one end of the clamping plate (5) away from the fixing rod (9) is fixedly connected to the detection probe (11).

6. The pipe stress detection device according to claim 4, characterized in that: The positioning assembly (6) comprises a positioning block (61) and a movable rod (62), one end of the movable rod (62) is fixedly connected to a limiting plate (64), and the other end of the movable rod (62) passes through the side wall of the splint (5) and is fixedly connected to the positioning block (61).

7. The pipe stress detection device according to claim 6, characterized in that: The outer wall of the movable rod (62) is sleeved with a telescopic spring (63), and the two ends of the telescopic spring (63) are respectively fixedly connected to the side wall of the limit plate (64) and the side wall of the clamping plate (5). One of the side walls of the movable rod (62) is provided with a vent hole (66), and the side wall of the limit plate (64) is fixedly connected to the mounting tube (13), and one end of the vent hole (66) is connected to the mounting tube (13).

8. The pipe stress detection device according to claim 7, characterized in that: A diversion cavity (67) is provided inside one of the positioning blocks (61), and a plurality of blowing slots (65) distributed in a linear array are provided on the inner wall of the diversion cavity (67). The blowing slots (65) are arranged in a diamond shape, and the diversion cavity (67) is connected to the vent hole (66).

9. The pipe stress detection device according to claim 8, characterized in that: The exhaust assembly (3) comprises an airbag (31), the two ends of the airbag (31) being fixedly connected to the side walls of the support plate (7) and the extension plate (41), respectively; a fixed tube (32) being fixedly connected to one side of the airbag (31); an end of the fixed tube (32) away from the airbag (31) being fixedly connected to a telescopic hose (33); and an end of the telescopic hose (33) away from the fixed tube (32) passing through a limiting slot (44) and being fixedly connected to the mounting tube (13).

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