Experimental mechanism for pressure resistance detection of petroleum pipeline

Abstract

The invention discloses a petroleum pipeline compression resistance detection experiment mechanism, and relates to the technical field of compression resistance detection of novel pipeline materials, the petroleum pipeline compression resistance detection experiment mechanism comprises a workbench, the upper surface of the workbench is fixedly connected with a hydraulic rod, and the output end of the hydraulic rod is fixedly connected with a pressure detection plate; and a working rod is arranged above the side of the pressure detection plate and above the workbench in a nested connection manner. According to the petroleum pipeline pressure resistance detection experiment mechanism, a first air bag can be deformed through movement of an extrusion plate, the inner side and the outer side of a pipeline can be sealed through an expanded fixed air bag, the phenomenon of gas leakage is avoided when internal pressure detection is conducted on the pipeline subsequently, an air compressor supplies air to the interior of a rotating rod through an air supply hose, and the pressure resistance of the pipeline is improved. Therefore, gas is conveyed into the pipeline from the first nozzle and the auxiliary nozzle, gas supply treatment is conducted on different directions in the pipeline, and real-time quantitative evaluation of the internal pressure bearing capacity of the pipeline can be achieved by observing the deformation condition of the pipeline and the gas supply numerical value of the air compressor.

Description

Technical Field

[0001] The invention relates to the technical field of compression resistance detection of novel pipeline materials, in particular to a petroleum pipeline compression resistance detection experimental mechanism. Background Art

[0002] Oil pipelines are specifically used for the transportation of oil and oil products. The materials used in their production have evolved from single-material optimization to composite and intelligent methods, forming a technical system represented by CFRP, bimetallic composite pipes, and high-performance alloys. Among them, carbon fiber composite materials (CFRP) are made of carbon fiber and polyetheretherketone (PEEK) thermoplastic matrix. They have high compressive strength and strong temperature resistance. In order to ensure the safe transportation of energy, oil pipelines need to be tested for their compressive performance before use.

[0003] Prior art 1 (Chinese patent with publication number CN118111821B, publication date 2024-07-12) is a pressure testing device for oil pipelines. This device addresses the issues of rolling during the initial pressure testing of the pipeline if the pipeline is not positioned, affecting its deformation in the mid- and late stages, and preventing testing of the pipeline under various temperatures. The device comprises a pressure testing device with a pipeline placement platform fixedly mounted on one side of its interior. A retractable pipeline positioning mechanism allows positioning of the pipeline during the initial pressure testing process. During the mid- and late stages of the pressure testing, the positioning portion is automatically retracted into the interior of the pipeline placement platform. Furthermore, pressure testing of the pipeline can be performed under different temperature environments, thereby simulating the various temperature environments that oil pipelines may encounter in the real world, thereby more accurately evaluating the performance of the oil pipeline in actual use. Prior art 2 (Chinese patent with publication number CN220271013U, publication date 2023-12-29) is a pressure testing device for oil pipelines, belonging to the field of oil pipeline technology. The device comprises: The device comprises an operating panel, the inner side of which is fixedly connected to a dual-axis motor, and the two output shafts of the dual-axis motor are fixedly connected to a threaded rod. The beneficial effect is that the oil pipeline pressure resistance detection device can drive the threaded rod to rotate through the operation of the dual-axis motor, thereby driving the threaded sleeve, the support plate and the limit block to move, and can clamp and fix the two ends of pipelines of different lengths to ensure the stability of subsequent detection. The electric push rod can drive the strength detector and the pressure sensor to descend, and can detect the pressure and strength of the pipeline. The detection range is wider and more reasonable, and can better guarantee the quality of qualified pipelines after detection. By setting a storage box, the detection content can be recorded and processed. By setting a placement slot, the pipeline can be placed, which is convenient for removal for detection.

[0004] Although the pipeline pressure resistance detection device in the existing technology can accurately evaluate the performance of the pipeline in actual use, the current pipeline pressure resistance testing technology generally has detection blind spots, mainly focusing on the external pressure bearing performance evaluation, and the systematic verification of the internal structural strength is still insufficient. When the pipeline transports oil, it will also withstand internal pressure, that is, the delivery pressure. When the delivery pressure is too high, the pipeline will also cause deformation or damage. Therefore, there are certain defects in the results of a single external pressure test.

[0005] Therefore, we proposed a petroleum pipeline compression testing experimental mechanism to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a test device for the pressure resistance testing of oil pipelines to solve the problem raised in the above-mentioned background technology that during the testing process of pipelines on the current market, current pipeline pressure resistance testing technology generally has detection blind spots, mainly focusing on the evaluation of external pressure bearing performance, and the systematic verification of internal structural strength is still insufficient. When the pipeline transports oil, it will also withstand internal pressure, that is, the delivery pressure. When the delivery pressure is too high, it will also cause the pipeline to deform or break. Therefore, there are certain defects in the results of a single external pressure test.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a petroleum pipeline pressure resistance testing test mechanism, comprising a workbench, the upper surface of the workbench is fixedly connected to a hydraulic rod, and the output end of the hydraulic rod is fixedly connected to a pressure detection plate, and a working rod is nested and connected above the side of the pressure detection plate and above the workbench, the left and right sides of the upper surface of the workbench are fixedly connected to telescopic rods, and the output end of the telescopic rod is fixedly connected to a positioning cylinder, the inner side of the positioning cylinder is fixedly connected to an auxiliary cylinder, and a rotating rod is rotatably provided at the center of the auxiliary cylinder, and the outer end of the rotating rod is fixedly connected to a first nozzle, and an auxiliary nozzle is also provided on the side of the auxiliary cylinder, and an adjustment mechanism is provided inside the auxiliary cylinder, and the adjustment mechanism realizes angle adjustment of the auxiliary nozzle by gas transmission between an extrusion airbag and a resistance airbag provided inside the auxiliary cylinder.

[0008] Preferably, a slide groove is opened inside the workbench, and a first airbag is fixedly connected inside the slide groove, a movable plate is fixedly connected to the lower surface of the positioning cylinder, and an extrusion plate is fixedly connected to the lower side of the movable plate, and the extrusion plate is slidably arranged inside the slide groove.

[0009] Preferably, a fixed airbag is fixedly connected to the sides of the positioning cylinder and the auxiliary cylinder, and a docking hose is provided between the lower end of the fixed airbag and the first airbag.

[0010] Preferably, the movable plate is arranged in a "C"-shaped structure when viewed from above, and a resistance block is fixedly connected to the inner side of the end of the movable plate, a connecting rod is nested and connected to the upper surface of the workbench, and the inner end of the connecting rod is fixedly connected to a positioning block for auxiliary limiting the pipeline, and the outer end of the connecting rod is fixedly connected to a resistance ball, and a spring is fixedly connected between the inner side of the resistance ball and the workbench.

[0011] Preferably, the side of the interference block is arranged in an inclined structure, and the interference ball drives the connecting rod to slide through the interference block.

[0012] Preferably, an air compressor is fixedly connected to the upper surface of the workbench, and an air supply hose is provided through the air compressor, a motor is fixedly connected to the outer center of the positioning cylinder, and the output end of the motor is fixedly connected to the outer end of the rotating rod, the outer side of the positioning cylinder is fixedly connected to a fixing ring with an internal hollow setting, and the fixing ring is connected through the other end of the air supply hose, two groups of fixing rings are nested on the outer side of the rotating rod, and a connecting hole that matches the position of the fixing ring is opened on the rotating rod.

[0013] Preferably, the adjustment mechanism includes a rotating pressure plate, which is fixedly connected to the outside of the rotating rod, and the extrusion airbag is fixedly connected to the inside of the auxiliary cylinder, and the positions of the extrusion airbag and the rotating pressure plate are adapted.

[0014] Preferably, the front side of the auxiliary cylinder is rotatably connected to a rotating ball, the auxiliary nozzle is connected to the outside of the rotating ball, and a swing rod is provided on the inside of the rotating ball, and the inner end of the swing rod is connected to a diversion hose, while the other end of the diversion hose is provided on a fixed ring nested on the outside of the rotating rod.

[0015] Preferably, a resistance airbag is fixedly connected between the upper surface of the swing arm and the inner side of the auxiliary tube, and a connecting hose is connected through the inner side of the resistance airbag, and the other end of the connecting hose is arranged on the extrusion airbag, and the swing arm drives the rotating ball to rotate through the resistance airbag.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The positioning cylinder can be used to clamp and limit the left and right sides of the pipeline, thereby avoiding the phenomenon of pipeline deviation during subsequent external pressure resistance testing of the pipeline. The positioning cylinder can be further improved during the movement of the extrusion plate by limiting the position of the slide groove, thereby better clamping and fixing the pipeline.

[0017] (2) The movement of the extrusion plate can cause the first airbag to deform and transfer the gas stored inside it to the fixed airbag. The inflated fixed airbag can seal the inside and outside of the pipeline to prevent gas leakage from affecting the test results during the subsequent internal pressure test of the pipeline.

[0018] (3) When the movable plate moves, the contact ball can drive the connecting rod to synchronously push the positioning block to move. The positioning blocks on the front and rear sides can further clamp the front and rear sides of the pipeline, thereby improving the stability of the pipeline during subsequent inspections.

[0019] (4) The air compressor supplies air to the inside of the rotating rod through the air supply hose, so that the gas is transported from the first nozzle and the auxiliary nozzle to the inside of the pipeline, thereby supplying air to different directions inside the pipeline. By observing the deformation of the pipeline and the air supply value of the air compressor, a real-time quantitative evaluation of the internal pressure bearing capacity of the pipeline can be achieved.

[0020] (5) By rotating the rotating rod, the rotating pressure plate can be rotated synchronously. At this time, the extrusion airbag and the resistance airbag realize gas exchange, and the swing rod is subjected to the resistance of the resistance airbag, thereby driving the auxiliary nozzle to deflect through the rotating ball, and then implementing multi-directional pressurized air supply to the pipeline, further improving the efficiency of pressure detection inside the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the pressure detection plate of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the air compressor of the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the positioning tube of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the interference block of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning block of the present invention; Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the auxiliary cylinder of the present invention; Figure 8 This is a schematic diagram of a three-dimensional cross-sectional structure of a rotating rod of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the extruded airbag of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the rotating ball of the present invention; Figure 11 This is a structural diagram of the auxiliary nozzle in the swinging state of the present invention.

[0022] In the figure: 1. workbench; 2. hydraulic rod; 3. working rod; 4. pressure detection plate; 5. positioning cylinder; 6. auxiliary cylinder; 7. air compressor; 8. telescopic rod; 9. motor; 10. air supply hose; 11. swing rod; 12. moving plate; 13. slide; 14. first air bag; 15. fixed air bag; 16. diverter hose; 17. resistance block; 18. extrusion plate; 19. docking hose; 20. resistance ball; 21. positioning block; 22. spring; 23. connecting rod; 24. rotating rod; 25. first nozzle; 26. auxiliary nozzle; 27. fixed collar; 28. connecting hole; 29. connecting hose; 30. rotating pressure plate; 31. extrusion air bag; 32. resistance air bag; 33. rotating ball. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 are within the scope of protection of the present invention.

[0024] Example 1: Figures 1-6 The technical solution shown in the figure, the present invention provides the following technical solution: a petroleum pipeline pressure resistance detection test mechanism, discloses a positioning cylinder 5, the positioning cylinder 5 can be used to fix the pipeline and seal its side, the upper surface of the workbench 1 is fixedly connected with a hydraulic rod 2, and the output end of the hydraulic rod 2 is fixedly connected with a pressure detection plate 4, and a working rod 3 is provided above the side of the pressure detection plate 4 and nested with the upper part of the workbench 1, the left and right sides of the upper surface of the workbench 1 are fixedly connected with telescopic rods 8, and the output end of the telescopic rod 8 is fixedly connected with the positioning cylinder 5, the inner side of the positioning cylinder 5 is fixedly connected with an auxiliary cylinder 6, the interior of the workbench 1 is provided with a slide groove 13, and the interior of the slide groove 13 is fixedly connected with a first airbag 14, the lower surface of the positioning cylinder 5 is fixedly connected with a movable plate 12, and the movable plate 12 An extrusion plate 18 is fixedly connected to the lower side, and the extrusion plate 18 is slidably arranged inside the slide groove 13. The sides of the positioning cylinder 5 and the auxiliary cylinder 6 are fixedly connected with a fixed airbag 15, and a docking hose 19 is provided between the lower end of the fixed airbag 15 and the first airbag 14. The movable plate 12 is arranged in a "C" shape when viewed from above, and a resistance block 17 is fixedly connected to the inner side of the end of the movable plate 12. A connecting rod 23 is nested and connected to the upper surface of the workbench 1, and the inner end of the connecting rod 23 is fixedly connected to a positioning block 21 for auxiliary limiting the pipeline, and the outer end of the connecting rod 23 is fixedly connected to a resistance ball 20, and a spring 22 is fixedly connected between the inner side of the resistance ball 20 and the workbench 1. The side of the resistance block 17 is arranged in an inclined structure, and the resistance ball 20 drives the connecting rod 23 to slide through the resistance block 17.

[0025] Start the hydraulic rod 2, and drive the pressure detection plate 4 downward through the hydraulic rod 2 to apply pressure to the pipeline, observe the deformation state of the pipeline, and feedback the pressure on the pipeline through the numerical value displayed by the external controller connected to the pressure detection plate 4, so that the internal pressure resistance of the pipeline can be known. Start the telescopic rod 8, and push the left and right groups of positioning cylinders 5 closer to each other through the telescopic rod 8. At this time, the left and right sides of the pipeline can be clamped and limited by the positioning cylinder 5, so as to avoid the pipeline from being offset when the external pressure resistance test of the pipeline is performed later. During the movement of the positioning cylinder 5, the moving plate 12 set at its lower end will synchronously drive the extrusion plate 18 to move inside the slide groove 13. The limitation of the slide groove 13 can further improve the stability of the movement of the positioning cylinder 5, so as to better clamp and fix the pipeline. The extrusion plate 18 is During the movement, the first airbag 14 can be squeezed synchronously, causing the first airbag 14 to deform, and the gas stored therein is transported to the inside of the fixed airbag 15 through the docking hose 19. At this time, the fixed airbag 15 expands, thereby sealing the inside and outside of the pipeline to prevent gas leakage from affecting the test results during subsequent internal pressure testing of the pipeline. During the movement of the movable plate 12, the resistance block 17 set on the side will be synchronously driven to move, thereby squeezing and pushing the resistance ball 20. At this time, the resistance ball 20 is pushed by the resistance block 17 and will synchronously push the positioning block 21 to move through the connecting rod 23. At this time, the positioning blocks 21 on the front and rear sides move synchronously, thereby further clamping the front and rear sides of the pipeline, thereby improving the stability of the pipeline during subsequent testing.

[0026] Example 2: Figure 7 、 Figure 8 and Figure 10 The technical solution shown in the figure, the present invention provides the following technical solution: a petroleum pipeline pressure resistance detection test mechanism, disclosing a fixed ring 27, the fixed ring 27 can prevent the hoses from being entangled, the upper surface of the workbench 1 is fixedly connected to the air compressor 7, and the air supply hose 10 is penetrated by the air compressor 7, the outer center of the positioning cylinder 5 is fixedly connected to the motor 9, and the output end of the motor 9 is fixedly connected to the outer end of the rotating rod 24, the outer side of the positioning cylinder 5 is fixedly connected to the internal hollow fixed ring 27, and the fixed ring 27 is penetrated and connected to the other end of the air supply hose 10, two groups of fixed rings 27 are nested on the outer side of the rotating rod 24, and the rotating rod 24 is provided with a connecting hole 28 adapted to the position of the fixed ring 27.

[0027] The air compressor 7 supplies air to the interior of the rotating rod 24 through the air supply hose 10, so that the gas is transported from the first nozzle 25 to the interior of the pipeline. At the same time, the rotating rod 24, with the assistance of the diversion hose 16, ejects part of the gas outward through the auxiliary nozzle 26, thereby implementing multi-directional pressurized air supply to the pipeline. Since the fixed air bag 15 seals both ends of the pipeline, the gas supplied to the interior of the pipeline cannot be discharged outward. When the gas is continuously supplied to the interior of the pipeline, the pipeline itself will be deformed by the gas pressure. At this time, by observing the deformation of the pipeline and the air supply value of the air compressor 7, a real-time quantitative assessment of the internal pressure bearing capacity of the pipeline can be achieved. Start the motor 9 and drive the rotating rod 24 to rotate through the motor 9. When the rotating rod 24 rotates, the rotating rod 24 can still receive the supplied gas through the connecting hole 28 opened on the side, and at the same time, it is transported to the auxiliary nozzle 26 through the connecting hole 28. The fixing ring 27 can to a certain extent avoid the problem of multiple sets of hoses being entangled due to the rotation of the rotating rod 24.

[0028] Example 3: Figure 3 、 Figure 7-11 The technical solution shown in the figure, the present invention provides the following technical solutions: a petroleum pipeline pressure resistance detection test mechanism, discloses an adjustment mechanism, through which the angle of the auxiliary nozzle 26 can be adjusted, so as to better detect the internal pressure of the pipeline, a rotating rod 24 is rotatably provided at the center of the auxiliary cylinder 6, and the outer end of the rotating rod 24 is fixedly connected to the first nozzle 25, and an auxiliary nozzle 26 is also provided on the side of the auxiliary cylinder 6, and an adjustment mechanism is provided inside the auxiliary cylinder 6, and the adjustment mechanism realizes the angle adjustment of the auxiliary nozzle 26 by gas transmission between the extrusion airbag 31 and the resistance airbag 32 provided therein, and the adjustment mechanism includes a rotating pressure plate 30, the rotating pressure plate 30 is fixedly connected to the outer side of the rotating rod 24, and the extrusion airbag 31 is fixedly connected to the The inside of the auxiliary cylinder 6, and the extrusion airbag 31 is adapted to the position of the rotating pressure plate 30, the front side of the auxiliary cylinder 6 is rotatably connected to the rotating ball 33, the auxiliary nozzle 26 is connected to the outside of the rotating ball 33, and the inner side of the rotating ball 33 is penetrated by a swing rod 11, and the inner end of the swing rod 11 is penetrated and connected to a diversion hose 16, while the other end of the diversion hose 16 is penetrated and set on the fixed ring 27 nested on the outside of the rotating rod 24, a resistance airbag 32 is fixedly connected between the upper surface of the swing rod 11 and the inner side of the auxiliary cylinder 6, and the inner side of the resistance airbag 32 is penetrated and connected with a connecting hose 29, and the other end of the connecting hose 29 is penetrated and set on the extrusion airbag 31, and the swing rod 11 drives the rotating ball 33 to rotate through the resistance airbag 32.

[0029] When the rotating rod 24 rotates, it can drive the rotating pressure plate 30 to rotate synchronously. At this time, the rotating pressure plate 30 can squeeze the extrusion airbags 31 one by one, causing the extrusion airbags 31 to deform. The deformed extrusion airbags 31 transport the gas inside them to the corresponding interference airbags 32 through the connecting hose 29, causing the interference airbags 32 to expand and interfere with the swing rod 11. At this time, the swing rod 11 is affected by the interference of the interference airbags 32, thereby driving the auxiliary nozzle 26 to deflect through the rotating ball 33, thereby implementing multi-directional pressurized air supply to the pipeline, further improving the efficiency of pressure detection inside the pipeline.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A petroleum pipeline pressure test experimental mechanism, comprising a workbench (1), wherein the upper surface of the workbench (1) is fixedly connected to a hydraulic rod (2), and the output end of the hydraulic rod (2) is fixedly connected to a pressure detection plate (4), and a working rod (3) is provided above the side of the pressure detection plate (4) and nested with the upper side of the workbench (1), characterized in that: Telescopic rods (8) are fixedly connected to both left and right sides of the upper surface of the workbench (1), and the output end of the telescopic rod (8) is fixedly connected to a positioning cylinder (5), the inner side of the positioning cylinder (5) is fixedly connected to an auxiliary cylinder (6), and a rotating rod (24) is rotatably provided at the center of the auxiliary cylinder (6), and the outer end of the rotating rod (24) is fixedly connected to a first nozzle (25), and an auxiliary nozzle (26) is also provided on the side of the auxiliary cylinder (6), and an adjustment mechanism is provided inside the auxiliary cylinder (6), and an extrusion airbag (31) and a resistance airbag (32) are provided inside the adjustment mechanism, and the angle of the auxiliary nozzle (26) is adjusted by gas transmission between the extrusion airbag (31) and the resistance airbag (32).

2. The oil pipeline compression test device according to claim 1, characterized in that: A chute (13) is provided inside the workbench (1), and a first airbag (14) is fixedly connected inside the chute (13); a movable plate (12) is fixedly connected to the lower surface of the positioning cylinder (5), and an extrusion plate (18) is fixedly connected to the lower side of the movable plate (12), and the extrusion plate (18) is slidably arranged inside the chute (13).

3. The oil pipeline compression test device according to claim 2, characterized in that: A fixed airbag (15) is fixedly connected to the sides of the positioning cylinder (5) and the auxiliary cylinder (6), and a docking hose (19) is provided between the lower end of the fixed airbag (15) and the first airbag (14).

4. The oil pipeline compression test device according to claim 2, characterized in that: The movable plate (12) is arranged in a "C"-shaped structure when viewed from above, and a resistance block (17) is fixedly connected to the inner side of the end of the movable plate (12), and a connecting rod (23) is nested and connected to the upper surface of the workbench (1), and a positioning block (21) for auxiliary positioning of the pipeline is fixedly connected to the inner end of the connecting rod (23), and a resistance ball (20) is fixedly connected to the outer end of the connecting rod (23), and a spring (22) is fixedly connected between the inner side of the resistance ball (20) and the workbench (1).

5. The oil pipeline compression test device according to claim 4, characterized in that: The side of the resistance block (17) is arranged in an inclined structure, and the resistance ball (20) drives the connecting rod (23) to slide through the resistance block (17).

6. The oil pipeline compression test device according to claim 1, characterized in that: An air compressor (7) is fixedly connected to the upper surface of the workbench (1), and an air supply hose (10) is provided through the air compressor (7). A motor (9) is fixedly connected to the center of the outer side of the positioning cylinder (5), and the output end of the motor (9) is fixedly connected to the outer end of the rotating rod (24). A fixed collar (27) with a hollow interior is fixedly connected to the outer side of the positioning cylinder (5), and the fixed collar (27) is connected through the other end of the air supply hose (10). Two groups of the fixed collars (27) are nested on the outer side of the rotating rod (24), and a connecting hole (28) is provided on the rotating rod (24) to match the position of the fixed collars (27).

7. The oil pipeline compression test apparatus according to claim 6, characterized in that: The adjustment mechanism includes a rotating pressure plate (30), the rotating pressure plate (30) is fixedly connected to the outside of the rotating rod (24), and the extrusion airbag (31) is fixedly connected to the inside of the auxiliary cylinder (6), and the positions of the extrusion airbag (31) and the rotating pressure plate (30) are adapted.

8. The oil pipeline compression test apparatus according to claim 7, characterized in that: The front side of the auxiliary cylinder (6) is rotatably connected to a rotating ball (33), the auxiliary nozzle (26) is connected to the outside of the rotating ball (33), and a swing rod (11) is provided on the inside of the rotating ball (33), and the inner end of the swing rod (11) is connected to a diversion hose (16), while the other end of the diversion hose (16) is provided on a fixed collar (27).

9. The oil pipeline compression test apparatus according to claim 8, characterized in that: A resisting airbag (32) is fixedly connected between the upper surface of the swinging rod (11) and the inner side of the auxiliary cylinder (6), and a connecting hose (29) is connected through the inner side of the resisting airbag (32), and the other end of the connecting hose (29) is provided on the squeezing airbag (31). The swinging rod (11) drives the rotating ball (33) to rotate through the resisting airbag (32).

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