A comprehensive pipeline testing equipment

Abstract

The present invention relates to the field of pipeline testing equipment, and specifically to a comprehensive pipeline testing equipment, comprising a detection component 1, an external clamping component and an internal support component, the internal support component comprising a driving component 1 and a screw, a movable sleeve being threadedly connected to the screw, a plurality of support components being provided on the movable sleeve, a pressure plate and a sliding groove being provided on the driving component 1, a groove being obliquely arranged along the axial direction of the screw being provided on the pressure plate, an elastic component being provided on the support component and being pressed on the groove through the elastic component through the sliding groove. By setting the groove, when encountering pipes of different diameters, the driving component 1 drives the support component to move radially along the screw through the elastic component as the groove depth changes, thereby enabling the support component to adapt to pipes of different diameters. At the same time, the present invention enables the support block to adapt to the placement of pipes of different diameters through the setting of the support structure and the driving structure, and the detection component 1 and the detection component 2 cooperate to detect various mechanical properties of the pipe.

Description

Technical Field

[0001] The present invention relates to the field of pipeline testing equipment, and in particular to a comprehensive pipeline testing equipment. Background Art

[0002] Oil pipelines are a core part of modern energy transportation infrastructure, primarily used for the long-distance transportation of crude oil, refined oil products, and natural gas. Composed of high-strength steel pipes, pumping stations, valves, and control systems, they efficiently and safely transport oil from production sites to consumer markets or ports through sealed pipelines. Compared to rail and road transport, pipeline transportation offers advantages such as low cost, high capacity, high continuity, and minimal environmental impact. It is an indispensable link in the energy supply chain. However, due to the long-term effects of high pressure, corrosion, and geological changes on pipelines, pipeline mechanical performance testing is crucial for ensuring safe and stable operation. Pipeline testing equipment is often used to assess the mechanical properties of pipelines.

[0003] Pipeline testing equipment typically includes a transfer assembly for moving the pipeline to the testing location, a detection assembly for testing the pipeline, and an external clamping assembly for clamping the end of the pipeline. The external clamping assembly typically consists of a motor and two clamping arms that move in opposite directions. The motor drives the two clamping arms toward each other to clamp the pipeline. Furthermore, the motor can control the distance the two clamping arms move to accommodate pipes of varying diameters. The transfer assembly includes a support block for placing the pipeline and a moving structure that drives the support block. The support block typically has an arc-shaped groove that mates with the pipeline.

[0004] In the prior art, when testing a pipeline, the pipeline is first transferred to the position corresponding to the detection component through the transfer component, and then one end of the pipeline needs to be fixed on the frame through the external clamping component. Then, the detection component and the external clamping component at the other end of the pipeline are relatively fixed, and the corresponding force is applied to the pipeline through the detection component and the situation after the force is applied to the pipeline is observed. Because the clamping force of the external clamping component on the pipeline is too large, the end of the pipeline is prone to deformation and damage. Therefore, when clamping the pipeline, an internal support component is usually set to support the inner wall of the pipeline. When the external clamping component clamps the outer periphery of the pipeline, the internal support component supports the inner wall of the pipeline to reduce the deformation of the pipeline due to the excessive clamping force of the external clamping component on the pipeline. However, the above process has the following problems: (1) The existing internal support component cannot adapt to different pipeline diameters. (2) The support block cannot adapt to the placement of pipelines of different diameters during transfer, which affects the stability of pipeline transfer; (3) The detection component of the pipeline testing equipment currently on the market can only test the tensile strength or torsion of the pipeline, and there is a lack of pipeline testing equipment that can test multiple mechanical properties of the pipeline. Summary of the Invention

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a pipeline comprehensive testing device, including:

[0006] Detection component 1, the detection component 1 is used to detect the tensile strength and torsional force of the pipeline;

[0007] An outer clamping assembly, the outer clamping assembly being used to clamp the outer circumference of the pipe;

[0008] The cam is connected to the drive shaft by a threaded connection, and the movable sleeve is provided with a plurality of support members for supporting the inner wall of the pipe. The drive shaft is connected to the drive shaft, and the support members are connected to the drive shaft, and the support members pass through the movable sleeve and the movable sleeve is provided with an outlet groove for the support members to pass through. The outlet groove is provided with a sliding groove corresponding to the support member, and the support member is provided with a groove connected to the sliding groove. The bottom wall of the groove is inclined along the axial direction of the screw, and an elastic member is provided on the support member. The elastic member is connected to the movable sleeve, and the support member passes through the sliding groove through the elastic member and is pressed on the bottom wall of the groove.

[0009] Furthermore, the support member includes a main body connected to the elastic member and a support plate arranged on the main body, the support plate is pressed on the inner wall of the pipe, and the main body is provided with a sliding block sliding along the sliding groove.

[0010] Furthermore, the elastic member is a tension spring, and the support plate is a flat plate structure inscribed in the circular track of the inner wall of the pipeline.

[0011] Furthermore, an arc-shaped protrusion is provided at the contact point between the support plate and the inner wall of the pipe.

[0012] Furthermore, the elastic member is a compression spring, and the support plate is an elastic arc-shaped plate structure that fits the inner wall of the pipeline.

[0013] Furthermore, a guide sleeve is provided on the second mounting plate, and a guide tapered hole is provided in the guide sleeve.

[0014] Furthermore, it also includes a transfer component, which includes a slide rail 1 and a frame slidably connected to the slide rail 1. The frame is connected to a moving cylinder and a driving component 2. The output end of the moving cylinder is connected to a lifting cylinder. The output end of the lifting cylinder is connected to a support block for supporting the pipeline. The moving cylinder and the driving component 2 cooperate to drive the support block to move the pipeline to the corresponding detection component 1.

[0015] Furthermore, the support block is provided with a support structure, which includes two support rods 1 and a support rod 2 arranged between the two support rods 1, the top ends of the support rod 2 and the two support rods 1 are both arranged to fit the outer circumference of the pipe, and the support block is connected with a clamping cylinder for driving the two support rods 1 to move closer to or away from each other, and the two support rods 1 are both provided with a driving structure, when the two support rods 1 move away from each other, the support rod 1 drives the support rod 2 to rise through the driving structure, and when the two support rods 1 approach each other, the support rod 1 drives the support rod 2 to descend through the driving structure.

[0016] Furthermore, the driving structure includes a first rack, a first gear, a second gear, a synchronization structure and a second rack, the first rack is connected to support rod one, the second rack is connected to support rod two, the first gear is meshed with the first rack, the second rack is meshed with the second gear, and the first gear rotates synchronously with the second gear through the synchronization structure.

[0017] Furthermore, it also includes a detection component 2, which includes a hydraulic cylinder 2 and a pressure sensor. The hydraulic cylinder 2 is used to apply pressure set along the radial direction of the pipeline to the pipeline, and the pressure sensor is used to detect the pressure value of the pipeline.

[0018] The beneficial effects of the present invention are as follows: by providing the grooves on the pressure plate, when encountering pipes of different diameters, the screw can be driven to rotate by the first driving member, thereby causing the groove depth of the corresponding support member to change. The support member can drive the sliding block to move radially along the screw as the groove depth changes, thereby allowing the support member to adapt to pipes of different diameters. At the same time, by providing the support structure and the drive structure, the present invention enables the support block to adapt to the placement of pipes of different diameters, improving the stability of pipe transfer, and the detection component 1 and the detection component 2 cooperate to detect various mechanical properties of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] In the picture: Figure 1 This is an overall structural diagram of a pipeline comprehensive testing device provided in Example 1 of the present invention;

[0021] Figure 2 for Figure 1 The main view of the pipeline integrated testing equipment with the transfer components hidden;

[0022] Figure 3 for Figure 1 The shown top view of the pipeline comprehensive testing equipment with the detection components, gripping manipulator and part of the frame hidden;

[0023] Figure 4 for Figure 1 A three-dimensional structural diagram of the outer clamping assembly and the inner support assembly shown;

[0024] Figure 5 for Figure 4 The three-dimensional structure diagram of the outer clamping assembly with some of its structures hidden;

[0025] Figure 6 for Figure 4 a rear view of the outer clamp assembly and inner support assembly shown;

[0026] Figure 7 for Figure 6 AA sectional view;

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0028] Figure 9 for Figure 7 A three-dimensional structural diagram of the inner support assembly shown;

[0029] Figure 10 for Figure 1 The three-dimensional structure diagram of the transfer assembly after the clamping robot is hidden;

[0030] Figure 11 for Figure 10 A three-dimensional structural diagram of the support block, support structure and drive structure shown;

[0031] Figure 12 for Figure 11 A three-dimensional structural diagram of the supporting structure and the driving structure shown;

[0032] Figure 13 for Figure 12 The three-dimensional structural diagram of the driving structure shown;

[0033] Figure 14 This is a front view of the inner support assembly provided in the second embodiment of the present invention after the driving member 1 is hidden;

[0034] Figure 15 for Figure 14 A cross-sectional view of the inner support assembly is shown with the drive member hidden.

[0035] 1. Hydraulic motor; 12. Hydraulic cylinder 1; 13. Hydraulic cylinder 2; 14. Frame; 141. Bracket; 20. External clamping assembly; 21. Mounting plate 1; 211. Limiting groove; 22. Mounting plate 2; 221. Guide sleeve; 2211. Guide taper hole; 23. Motor 1; 24. Screw rod 1; 25. Clamping arm; 251. Moving shaft; 252. Limiting wheel; 30. Internal support assembly; 31. Driving member 1; 32. Screw rod; 33. Moving shaft sleeve; 331. Through groove; 332. Sliding groove; 3321. Limiting through groove; 34. Support member; 341. Main body; 3411. Sliding block; 3412. Limiting block; 342. Support plate; 3421. Arc-shaped protrusion; 35. Pressing plate; 351. Groove; 3 6. Elastic member; 40. Transfer assembly; 41. Slide rail 1; 42. Frame; 421. Pulley; 43. Moving cylinder; 44. Driving member 2; 441. Rotating motor; 442. Synchronous gear set; 45. Lifting cylinder; 46. Support block; 461. First block; 4611. Cavity; 462. Protrusion; 4621. Through slot 1; 4622. Through slot 2; 47. Gripping cylinder; 48. Clamping manipulator; 50. Support structure; 51. Support rod 1; 52. Support rod 2; 521. Arc-shaped elastic sheet; 60. Driving structure; 61. First rack; 62. First gear; 63. Second gear; 64. Synchronous structure; 641. Third gear; 642. Fourth gear; 643. Synchronous belt; 644. Fifth gear; 65. Second rack; 200. Pipeline. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic principles of the present invention in an illustrative manner, and therefore only shows the structures related to the present invention. Obviously, the embodiments described are 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 work are within the scope of protection of the present invention.

[0037] Example 1

[0038] Please refer to Figure 1 、 Figure 2 and Figure 3The present invention provides a comprehensive pipeline testing device 100, comprising a detection component 1, a detection component 2, an outer clamping component 20, and an inner support component 30. Detection component 1 is used to detect the tensile strength and torsion of pipeline 200, and detection component 2 is used to detect the bending moment of pipeline 200. The cooperation between detection components 1 and 2 enables detection of various mechanical properties of pipeline 200. The outer clamping component 20 is used to clamp the outer circumference of pipeline 200. Detection component 1 includes a hydraulic motor 11, a torque sensor (not shown), and a hydraulic cylinder 12, as well as a frame 14 for mounting the hydraulic motor 11, hydraulic cylinder 12, and outer clamping component 20. The outer clamping component 20 is fixed to the frame 14 by bolts.

[0039] by Figure 1 The length direction of the rack 14 is the horizontal direction, and the height direction of the rack 14 is the vertical direction.

[0040] Please refer to Figure 4 and Figure 5 The outer clamping assembly 20 includes a mounting plate 1 21, a mounting plate 22, a motor 1 23 connected to the mounting plate 1 21, a screw 1 24 connected to the output end of the motor 1 23, and two clamping arms 25 slidably connected to the mounting plate 1 21. The screw 1 24 and the two clamping arms 25 are threadedly connected. The motor 1 23 is used to drive the two clamping arms 25 toward each other to clamp the pipe 200. Specifically, the screw 1 24 is a counter-threaded screw. When encountering pipes 200 of different diameters, the motor 1 23 adapts to the different diameters of the pipe 200 by changing the distance the two clamping arms 25 move.

[0041] Please refer to Figure 1 、 Figure 2 and Figure 3 The output end of hydraulic motor 11 is coaxially connected to mounting plate 1 21 via a reducer. A torque sensor is provided at the output end of hydraulic motor 11 to detect torque at the output end of hydraulic motor 11. The output end of hydraulic cylinder 12 is connected to mounting plate 1 21 and is used to apply a tensile force to pipe 200 along its axial direction.

[0042] When testing the tensile strength or torsional strength of pipe 200, the outer clamping assembly 20 cooperates with the inner support assembly 30 to secure the end of pipe 200 to the frame 14. The output end of the hydraulic motor 11 or hydraulic cylinder 12 is then secured relative to the outer clamping assembly 20 at the other end of pipe 200. When testing the tensile strength of pipe 200, one end of pipe 200 is secured to the frame 14 using the outer clamping assembly 20. A tensile force, set along the axial direction of pipe 200, is applied to the other end of pipe 200 via hydraulic cylinder 12. The tensile strength of pipe 200 is then determined based on the output of hydraulic cylinder 12 and the applied force on pipe 200.

[0043] When testing the torsion of the pipe 200, one end of the pipe 200 is fixed to the frame 14 through the external clamping assembly 20, and a torsion set along the circumferential direction of the pipe 200 is applied to the other end of the pipe 200 through the hydraulic motor 11. The torsion of the pipe 200 is then obtained by testing with a torque sensor.

[0044] Please refer to Figure 1 、 Figure 2 and Figure 3 The frame 14 is provided with a bracket 141 for placing the pipe 200. The second detection component includes a second hydraulic cylinder 13 and a pressure sensor (not shown). The second hydraulic cylinder 13 is fixed to the frame 14 in a vertical direction and is located above the pipe 200. The second hydraulic cylinder 13 is used to apply a pressure set in the radial direction of the pipe 200 to the pipe 200, and the pressure sensor is used to detect the pressure value applied to the pipe 200. When testing the bending moment of the pipe 200, the pipe 200 is transferred to the bracket 141 by the transfer assembly 40. The second hydraulic cylinder 13 applies a pressure set in the radial direction of the pipe 200 to the pipe 200. The pressure value applied to the pipe 200 is then detected by the pressure sensor, and the bending moment of the pipe 200 is calculated based on this pressure value. The process of calculating the bending moment of the pipe 200 based on this pressure value is a prior art process and will not be described in detail in this embodiment.

[0045] Specifically, in this embodiment, to facilitate performing tensile strength and torsion tests on pipeline 200 without repositioning the pipeline 200, two sets of external clamping assemblies 20 and internal support assemblies 30 are provided, one for each of the two ends of the pipeline 200's lengthwise direction. Hydraulic motor 11 or hydraulic cylinder 12 are also located at both ends of the pipeline 200's lengthwise direction. When performing tensile strength or torsion tests on pipeline 200, only the corresponding external clamping assembly 20 is required to secure the hydraulic motor 11 or hydraulic cylinder 12. The other end of pipeline 200 is secured to the frame 14 via the corresponding external clamping assembly 20. Both the hydraulic motor 11 and hydraulic cylinder 12 are connected to the corresponding external clamping assembly 20 via flanges.

[0046] Please refer to Figure 4 and Figure 6 The mounting plate 1 21 is provided with a limiting slot 211. Both clamping arms 25 are provided with a movable shaft 251 that passes through the limiting slot 211. A limiting wheel 252 is provided at one end of the movable shaft 251 that passes through the limiting slot 211. The limiting wheel 252 has a diameter greater than the width of the limiting slot 211. The limiting wheel 252 cooperates with the limiting slot 211 to limit the movement distance of the two clamping arms 25, thereby further limiting the clamping force of the outer clamping assembly 20 on the pipe 200.

[0047] Please refer to Figure 4 and Figure 7The second mounting plate 22 is provided with a guide sleeve 221, which has a guide tapered hole 2211 therein. Specifically, the diameter of the end of the guide tapered hole 2211 away from the first mounting plate 21 is larger than the diameter of the end of the guide tapered hole 2211 closer to the first mounting plate 21. This allows the pipe 200 to be centered before being clamped by the two clamping arms 25, facilitating alignment of the central axis of the pipe 200 with the central axis of the outer clamping assembly 20, and facilitating the hydraulic motor 11 or the hydraulic cylinder 12 to apply force to the pipe 200.

[0048] Please refer to Figure 7 、 Figure 8 and Figure 9 The inner support assembly 30 includes a driving member 31 and a screw 32 connected to the output end of the driving member 31. A movable sleeve 33 is threadedly connected to the screw 32. A plurality of support members 34 for supporting the inner wall of the pipe 200 are arranged circumferentially on the movable sleeve 33. The driving member 31 is connected to a plurality of pressure plates 35 arranged along the axial direction of the screw 32. The pressure plates 35 correspond to the support members 34. The pressure plates 35 pass through the movable sleeve 33 and the movable sleeve 33 is provided with a plurality of support members 34 for supporting the inner wall of the pipe 200. The pressure plate 35 passes through the passage slot 331, which is provided with a sliding slot 332 corresponding to the support member 34. The pressure plate 35 is provided with a groove 351 connected to the corresponding sliding slot 332. The bottom wall of the groove 351 is inclined along the axial direction of the screw 32. The support member 34 is provided with an elastic member 36, which is fixedly connected to the movable shaft sleeve 33. The support member 34 passes through the sliding slot 332 through the elastic member 36 and presses against the bottom wall of the groove 351. Specifically, in this embodiment, the driving member 1 31 is a transmission gearbox, the screw 32 and the output end of the transmission gearbox are coaxially fixed, and the pressure plate 35 is fixedly connected to the housing of the transmission gearbox.

[0049] By setting the groove 351 on the pressure plate 35, when encountering pipes 200 of different diameters, the screw 32 can be driven to rotate by the driving member 31, thereby changing the groove depth of the groove 351 corresponding to the support member 34. The support member 34 can move along the radial direction of the screw 32 through the elastic member 36 as the groove depth of the groove 351 changes, so that the support member 34 can adapt to pipes 200 of different diameters.

[0050] In order to reduce the space occupied by the inner support assembly 30 , the driving member 31 is fixed to the mounting plate 21 by bolts, and the screw 32 , the movable sleeve 33 and the support member 34 are all inserted between the two clamping arms 25 .

[0051] Please refer to Figure 8The support member 34 includes a main body 341 connected to the elastic member 36 and a support plate 342 disposed on the main body 341. The support plate 342 presses against the inner wall of the pipe 200. The main body 341 is provided with a sliding block 3411 that slides along the sliding groove 332. Specifically, to accommodate the groove 351, the bottom surface of the sliding block 3411 is configured as an inclined surface arranged along the axial direction of the screw 32.

[0052] Please refer to Figure 8 The wall of the sliding groove 332 is provided with a limit groove 3321, and the sliding block 3411 is provided with a limit block 3412, which is slidably arranged in the limit groove 3321. The setting of the limit groove 3321 makes it difficult for the sliding block 3411 to fall out of the sliding groove 332 when sliding along the sliding groove 332.

[0053] Specifically, based on the center line of the pipe 200 in the longitudinal direction, the groove depth of the groove 351 close to the center line of the pipe 200 in the longitudinal direction is greater than the groove depth of the groove 351 away from the center line of the pipe 200 in the longitudinal direction.

[0054] Please refer to Figure 9 The elastic member 36 is a compression spring, and the support plate 342 is an elastic arc-shaped plate structure that fits the inner wall of the pipe 200.

[0055] Please refer to Figure 8 When the diameter of the pipe 200 becomes smaller, the driving member 31 drives the screw 32 to rotate, causing the movable sleeve 33 to move axially along the screw 32, and causing the sliding block 3411 to move relative to the pressure plate 35 toward the center line of the pipe 200 in the longitudinal direction. Since the groove depth of the groove 351 gradually increases along the axial direction of the screw 32 toward the center line of the pipe 200 in the longitudinal direction, as the movable sleeve 33 moves, the groove depth of the groove 351 facing the sliding block 3411 increases, and the bottom wall of the groove 351 facing the sliding block 3411 gradually approaches the center axis of the movable sleeve 33, thereby facilitating the inner wall of the pipe 200 to push the sliding block 3411 to compress the elastic member 36 and push the sliding block 3411 to move toward the center axis of the movable sleeve 33, thereby causing the support plate 342 to approach the center axis of the movable sleeve 33, and the support plate 342 can support the inner wall of the pipe 200 with a smaller diameter.

[0056] At the same time, the support plate 342 is set to an elastic arc plate structure that fits the inner wall of the pipe 200, so that when the diameter of the pipe 200 becomes smaller, the curvature of the support plate 342 can change as the diameter of the pipe 200 becomes smaller, thereby better fitting the inner wall of the pipe 200.

[0057] Please refer to Figure 3 and Figure 10The pipeline comprehensive testing equipment 100 also includes a transfer assembly 40, which includes a slide rail 1 41 and a frame 42 slidably connected to the slide rail 1 41. The frame 42 is connected to a moving cylinder 43 and a driving member 2 44. The output end of the moving cylinder 43 is connected to a lifting cylinder 45. The output end of the lifting cylinder 45 is connected to a support block 46 for supporting the pipeline 200. The moving cylinder 43 and the driving member 2 44 cooperate to drive the support block 46 to transfer the pipeline 200 to the corresponding detection assembly 1. Specifically, the moving cylinder 43 is a rodless cylinder. The moving cylinder 43 is used to drive the support block 46 to move along the length direction of the frame 14, and the driving member 2 44 is used to drive the frame 42 to drive the support block 46 to move along the width direction of the frame 14.

[0058] The second driving member 44 includes a rotating motor 441 fixedly connected to the frame 42 and a synchronous gear set 442 connected to the output end of the rotating motor 441. A pulley 421 is provided at the bottom of the frame 42. The pulley 421 and the synchronous gear set 442 are coaxially fixed. Specifically, the synchronous gear set 442 includes a large gear and a small gear that mesh with each other. The large gear is coaxially fixed to the output end of the rotating motor 441, and the small gear is coaxially fixed to the pulley 421.

[0059] Please refer to Figure 11 and Figure 12 A support structure 50 is provided on the support block 46. The support structure 50 includes two support rods 51 arranged opposite to each other and a support rod 2 52 arranged between the two support rods 51. The top ends of the support rod 2 52 and the two support rods 51 are both arranged to fit the outer periphery of the pipe 200. The support block 46 is connected to a clamping cylinder 47 for driving the two support rods 51 to move closer to or away from each other, and the two support rods 51 move in the horizontal direction.

[0060] Please refer to Figure 11 and Figure 12The line connecting the top of support rod 2 52 and the top of the two support rods 1 51 forms an arc-shaped trajectory that fits the outer circumference of pipe 200. Since the tops of support rod 2 52 and the two support rods 1 51 no longer fit the outer circumference of pipe 200 when the diameter of test pipe 200 varies, the curvature of this arc-shaped trajectory needs to change accordingly. Specifically, when the diameter of pipe 200 increases, the curvature of this arc-shaped trajectory decreases, the two support rods 1 51 move away from each other, and support rod 2 52 rises. When the diameter of pipe 200 decreases, the curvature of this arc-shaped trajectory increases, the two support rods 1 51 move closer to each other, and support rod 2 52 descends. Therefore, a driving structure 60 is provided on both support rods 51, so that when the two support rods 51 move away from each other, support rod 1 51 drives support rod 2 52 to rise through the driving structure 60, and when the two support rods 51 approach each other, support rod 1 51 drives support rod 2 52 to fall through the driving structure 60, so that the top ends of support rod 2 52 and the two support rods 51 form an arc trajectory that fits the outer periphery of the pipe 200 and can be adjusted according to the diameter change of the pipe 200, thereby improving the stability of the pipe 200 transfer.

[0061] In order to facilitate the two support rods 1 51 to synchronously drive the support rod 2 52 to rise or fall through the driving structure 60, the plane formed by the two support rods 1 51 and the support rod 2 52 is used as the reference plane, and the support rod 2 52 is located on the central axis of the straight line connecting the top ends of the two support rods 1 51 on the reference plane, that is, the two support rods 1 51 are symmetrically distributed about the support rod 2 52 on the reference plane.

[0062] Please refer to Figure 13 The driving structure 60 includes a first rack 61, a first gear 62, a second gear 63, a synchronization structure 64 and a second rack 65. The first rack 61 and the support rod 1 51 are connected by screws, and the second rack 65 and the support rod 2 52 are connected by screws. The first gear 62 and the first rack 61 are meshed with each other, and the second rack 65 is meshed with the second gear 63. The first gear 62 rotates synchronously with the second gear 63 through the synchronization structure 64, and the first rack 61 and the second rack 65 are perpendicular to each other.

[0063] Specifically, the first rack 61 is disposed along the length direction of the support block 46 , and the second rack 65 is disposed along the height direction of the support block 46 .

[0064] Please refer to Figure 13 The synchronization structure 64 includes a third gear 641, a fourth gear 642, a synchronous toothed belt 643, and a fifth gear 644 coaxially fixed to the second gear 63. The third gear 641 and the fourth gear 642 are coaxially fixed to the first gear 62, and the fourth gear 642 and the fifth gear 644 rotate synchronously through the synchronous toothed belt 643.

[0065] In order to adapt to the outer circumference of the pipe 200, the second support rod 52 is provided with an arc-shaped elastic piece 521 that fits the outer circumference of the pipe 200. When the diameter of the pipe 200 changes, the arc-shaped elastic piece 521 can deform along with the outer circumference of the pipe 200.

[0066] Please refer to Figure 11 To facilitate installation of the support structure 50 and the drive structure 60, the support block 46 includes a first block 461 and two protrusions 462 detachably connected to the first block 461 by bolts. The first block 461 is provided with a cavity 4611 for mounting the support structure 50 and the drive structure 60. The two protrusions 462 are each provided with a through-slot 1 4621 for passing the first support rod 51 and a through-slot 2 4622 for passing the second support rod 52. The cross-sections of the two protrusions 462 are triangular. When the two protrusions 462 are connected, their top surfaces form a V-shaped groove, with the second support rod 52 located at the lowest point of the V-shaped groove.

[0067] The transfer assembly 40 further includes a clamping robot 48 , which is used to transfer the pipe 200 to the support block 46 .

[0068] Example 2

[0069] Please refer to Figure 14 and Figure 15 The difference between this embodiment and the first embodiment is that the elastic member 36 is a tension spring, and the support plate 342 is a flat plate structure inscribed in a circular track formed by the inner wall of the pipe 200 .

[0070] When the diameter of the pipe 200 becomes larger, the driving member 31 drives the screw 32 to rotate, causing the movable sleeve 33 to move axially along the screw 32, and causing the sliding block 3411 to move relative to the pressure plate 35 in the direction away from the center line of the length direction of the pipe 200. Since the groove depth of the groove 351 gradually increases along the axial direction of the screw 32 toward the center line of the length direction of the pipe 200, as the movable sleeve 33 moves, the groove depth of the groove 351 facing the sliding block 3411 becomes smaller, and the bottom wall of the groove 351 facing the sliding block 3411 gradually moves away from the center axis of the movable sleeve 33, thereby causing the bottom wall of the groove 351 to push the sliding block 3411 to move away from the center axis of the movable sleeve 33, thereby causing the support plate 342 to move away from the center axis of the movable sleeve 33, and the support plate 342 can support the inner wall of the pipe 200 with a larger diameter.

[0071] At the same time, the support plate 342 is set to a flat plate structure that is inscribed in the circular trajectory formed by the inner wall of the pipe 200. When the diameter of the pipe 200 increases, the end of the support plate 342 can continue to be inscribed in the inner wall of the pipe 200 by moving along the radial direction of the pipe 200, thereby being able to fit the inner wall of the pipe 200.

[0072] Furthermore, an arc-shaped protrusion 3421 is provided at the contact point between the support plate 342 and the inner wall of the pipe 200. The provision of the arc-shaped protrusion 3421 reduces the wear on the inner wall of the pipe 200 when the support plate 342 supports the inner wall of the pipe 200.

[0073] In order to further increase the contact points between the inner support assembly 30 and the inner wall of the pipe 200, thereby enhancing its support stability and force uniformity, the number of support members 34, pressure plates 35 and elastic members 36 is not limited to the number shown in the figure. Those skilled in the art can configure the number of support members 34, pressure plates 35 and elastic members 36 to six or more according to actual working conditions, and are not limited to this. Any quantity adjustment based on the same inventive concept should be deemed to fall within the scope of protection of the present invention.

Claims

1. A comprehensive pipeline testing device, comprising a detection component 1 and an outer clamping component (20), wherein the detection component 1 is used to detect the tensile strength and torsion of the pipeline (200), and the outer clamping component (20) is used to clamp the outer periphery of the pipeline (200); Its characteristics are: The invention also includes an inner support assembly (30), wherein the inner support assembly (30) includes a driving member (31) and a screw (32) connected to the output end of the driving member (31), a movable sleeve (33) is threadedly connected to the screw (32), a plurality of support members (34) for supporting the inner wall of the pipeline (200) are circumferentially arranged on the movable sleeve (33), and a plurality of pressure plates (35) corresponding to the support members (34) are connected to the driving member (31), the pressure plates (35) pass through the movable sleeve (33), and the movable sleeve (33) is provided with a pressure plate (35) for supporting the inner wall of the pipeline (200). 5) passes through an outlet groove (331), a sliding groove (332) corresponding to the support member (34) is provided on the outlet groove (331), the pressure plate (35) is provided with a groove (351) connected to the sliding groove (332), the bottom wall of the groove (351) is inclined along the axial direction of the screw (32), the support member (34) is provided with an elastic member (36), the elastic member (36) is connected to the movable shaft sleeve (33), and the support member (34) passes through the sliding groove (332) through the elastic member (36) and is pressed on the bottom wall of the groove (351).

2. The comprehensive pipeline testing equipment according to claim 1, characterized in that: The support member (34) includes a main body (341) connected to the elastic member (36) and a support plate (342) arranged on the main body (341), the support plate (342) is pressed on the inner wall of the pipe (200), and the main body (341) is provided with a sliding block (3411) that slides along the sliding groove (332).

3. The comprehensive pipeline testing equipment according to claim 2, characterized in that: The elastic member (36) is a tension spring, and the support plate (342) is a flat plate structure inscribed in the circular track of the inner wall of the pipe (200).

4. The comprehensive pipeline testing equipment according to claim 3, characterized in that: An arc-shaped protrusion (3421) is provided at the contact point between the support plate (342) and the inner wall of the pipe (200).

5. The comprehensive pipeline testing equipment according to claim 2, characterized in that: The elastic member (36) is a compression spring, and the support plate (342) is an elastic arc-shaped plate structure that fits the inner wall of the pipe (200).

6. The comprehensive pipeline testing equipment according to claim 4 or 5, characterized in that: The outer clamping assembly (20) comprises a second mounting plate (22), a guide sleeve (221) is provided on the second mounting plate (22), and a guide cone hole (2211) is provided in the guide sleeve (221).

7. The comprehensive pipeline testing equipment according to claim 1, characterized in that: The invention also includes a transfer assembly (40), wherein the transfer assembly (40) includes a slide rail (41), a frame (42) slidably connected to the slide rail (41), a moving cylinder (43) and a second driving member (44) are connected to the frame (42), an output end of the moving cylinder (43) is connected to a lifting cylinder (45), and an output end of the lifting cylinder (45) is connected to a support block (46) for supporting the pipeline (200), and the moving cylinder (43) cooperates with the second driving member (44) to drive the support block (46) to transfer the pipeline (200) to a position corresponding to the detection assembly (1).

8. The comprehensive pipeline testing equipment according to claim 7, characterized in that: The support block (46) is provided with a support structure (50), and the support structure (50) includes two support rods (51) and a support rod (52) arranged between the two support rods (51). The top ends of the support rod (52) and the two support rods (51) are both arranged to fit the outer periphery of the pipe (200). The support block (46) is connected with a clamping cylinder (47) for driving the two support rods (51) to move closer to or away from each other. The two support rods (51) are both provided with a driving structure (60). When the two support rods (51) move away from each other, the support rod (51) drives the support rod (52) to rise through the driving structure (60). When the two support rods (51) move closer to each other, the support rod (51) drives the support rod (52) to fall through the driving structure (60).

9. The comprehensive pipeline testing equipment according to claim 8, characterized in that: The driving structure (60) includes a first rack (61), a first gear (62), a second gear (63), a synchronization structure (64) and a second rack (65); the first rack (61) is connected to the first support rod (51); the second rack (65) is connected to the second support rod (52); the first gear (62) is meshed with the first rack (61); the second rack (65) is meshed with the second gear (63); the first gear (62) rotates synchronously with the second gear (63) through the synchronization structure (64).

10. The comprehensive pipeline testing equipment according to claim 9, characterized in that: The invention also includes a second detection component, which includes a second hydraulic cylinder (13) and a pressure sensor. The second hydraulic cylinder (13) is used to apply pressure set along the radial direction of the pipeline (200) to the pipeline (200), and the pressure sensor is used to detect the pressure value applied to the pipeline (200).

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