Pipeline position adjusting device

By installing a moving device and a position adjustment mechanism on the outside of the testing box, the problem that existing testing instruments cannot simulate the tensile and compressive strength of flexible pipes under extreme conditions is solved, enabling precise testing of the connection parts of flexible pipes and ensuring the accuracy and automation of the test results.

CN223565383UActive Publication Date: 2025-11-18HUASHI (SHANDONG) INSPECTION & TESTING RES INST CO LTD
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Patent Information

Application Number
CN202422395551.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-11-18
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Existing testing instruments cannot effectively simulate the tensile and compressive strength of flexible pipes under extreme conditions, resulting in poor testing results.

Method used

A pipe position adjustment device was designed. By setting a moving device and a position adjustment mechanism on the outside of the test box, the position of the support block on the support guide rail is changed by using a screw assembly or a cylinder/hydraulic cylinder assembly to simulate the extreme use environment of the pipe connection and realize tensile and compressive strength tests.

Benefits of technology

It enables precise testing of the tensile and compressive properties of flexible pipe connections, ensuring the accuracy and automation of test results, and is suitable for simulation testing in different usage environments.

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Abstract

The utility model discloses a pipeline position adjusting device, which relates to the technical field of pipeline detection auxiliary equipment and comprises a base, a detection box and a support guide rail are fixedly arranged on the base, a connecting part of two pipeline bodies is positioned in the detection box, and the pipeline bodies positioned outside the detection box are respectively connected with a moving device; the moving device comprises a pipeline fixing seat and a supporting block, the pipeline fixing seat is clamped and fixed to the pipeline body, and the pipeline fixing seat is fixed to the upper portion of the supporting block; a supporting roller is arranged in the connecting seat, and the supporting roller is connected to the supporting guide rail in a sliding manner; the base is further provided with a position adjusting mechanism, and the position adjusting mechanism is used for changing the position of the supporting block on the supporting guide rail. Therefore, the movable device is arranged on the outer side of the detection box, the position of the movable device is changed by utilizing the position adjusting mechanism, a test scene is simulated, and the tensile / compressive test of the flexible connecting part of the pipeline is realized.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for pipeline inspection, and specifically to a pipeline position adjustment device. Background Technology

[0002] The pipeline production equipment uses mature existing technology. After the manufacturer completes the production, a professional testing company is required to conduct quality inspection before the pipeline is put into the market in batches.

[0003] Based on the characteristics of pipelines, they can generally be divided into rigid pipelines and flexible pipelines. For flexible pipelines, the main body is generally made of ductile iron, and the joint is a flexible joint. Flexible joint cast iron pipes are made of high-speed centrifugal casting technology, which has the advantages of dense structure, uniform pipe wall thickness, smooth inner and outer walls, no sand holes and slag inclusions, high tensile and compressive strength, stable chemical composition, corrosion resistance, fire resistance and non-toxicity, meeting fire safety and environmental protection requirements, no noise, no deformation, and long service life.

[0004] Flexible pipes are typically buried underground and are mainly used for sewage transportation, requiring high resistance to pressure, tension, and corrosion. Existing testing instruments are generally fitted onto the pipe joints to measure various parameters. To achieve better results, they can simulate usage scenarios, especially for the tensile or compressive strength of the pipe joints. However, because the pipe's location cannot be changed, it is inconvenient to measure parameters under certain extreme conditions. Utility Model Content

[0005] To overcome the above-mentioned defects, the purpose of this utility model is to provide a pipeline position adjustment device, which uses a moving device set on the outside of the test box and a position adjustment mechanism to change the position of the moving device to simulate the test scenario and realize the tensile / compression test of the flexible connection of the pipeline.

[0006] To achieve the above objectives, this utility model provides a pipe position adjustment device, characterized in that it includes a base, on which a detection box and a support rail are fixedly mounted; the connecting part of two pipe bodies is located inside the detection box, and the pipe bodies located outside the detection box are respectively connected to a moving device; the moving device includes a pipe fixing seat and a support block; the pipe fixing seat is snapped to fix the pipe body, and the pipe fixing seat is fixed to the upper part of the support block; the pipe fixing seat is provided with a support roller, and the support roller is slidably connected to the support rail; the base is also provided with a position adjustment mechanism, which is used to change the position of the support block on the support rail.

[0007] Preferably, the position adjustment mechanism is a lead screw assembly, which includes a lead screw base, a movable push plate, and an adjusting lead screw. The fixed base is fixedly connected to the base, the movable push plate is slidably connected to the fixed base, the movable push plate is drively connected to the adjusting lead screw, and a rotary drive handle or servo motor is hinged to the end of the adjusting lead screw.

[0008] Preferably, the base is provided with multiple adjustment holes, the fixed seat is fixedly connected to the base through the limiting bolts and the adjustment holes, and the end of the movable push plate abuts against the support block.

[0009] Preferably, the movable push plate is fixedly connected to the support block.

[0010] Preferably, the fixed base and the movable push plate are provided with a plurality of limiting holes, and limiting pins are inserted into the limiting holes.

[0011] Preferably, the position adjustment mechanism is a cylinder / hydraulic cylinder assembly, which is used to push the support block closer to or away from the detection box.

[0012] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0013] 1. By placing the pipe connection within the testing chamber, various properties of the connection, such as sealing, pressure resistance, and corrosion resistance, can be tested. After testing, the medium can be promptly emptied through the testing chamber, preventing environmental contamination. Furthermore, both pipe bodies are equipped with moving devices; under the adjustment mechanism, the pipe bodies on both sides can be compressed inwards or extended outwards. This is particularly beneficial for flexible pipe connections, simulating extreme operating environments and directly testing their compressive and tensile strength limits, ensuring safe operation in the future.

[0014] 2. Since a lead screw assembly is used as the position adjustment mechanism, during operation, the position of the fixed lead screw base is determined according to the position of the support block. The movable push plate abuts against the support block, or is directly fixed to the support block. The two lead screw assemblies push the pipe body towards the detection box. The thrust of the adjusting lead screw in the lead screw assembly pushing the movable push plate is constant. Combined with other auxiliary sensors, it can be used to detect the pressure at the pipe body connection. When the movable push plate moves the fixed base outwards from the detection box, the tensile strength of the pipe body connection can be tested. If the adjusting lead screw is driven by a servo motor, the degree of automation will be higher, and the test results will be more accurate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the overall usage status of the pipe position adjustment device of this utility model;

[0016] Figure 2 yes Figure 1 The front view;

[0017] In the diagram,

[0018] 1. Base; 11. Testing box; 12. Support rail; 13. Adjustment hole;

[0019] 2. Moving device; 21. Pipe fixing seat; 22. Support block; 23. Support roller;

[0020] 3. Lead screw assembly; 31. Lead screw base; 32. Movable push plate; 33. Adjusting lead screw;

[0021] 4. Pipe body. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0023] See Figures 1-2 This utility model provides a pipe position adjustment device, including a base 1. The base 1 is fixedly equipped with a detection box 11 and a support rail 12. The connection part of two pipe bodies 4 is located inside the detection box 11, and the pipe bodies 4 located outside the detection box 11 are respectively connected to moving devices 2. The detection box 11 is existing technology and can be purchased according to actual needs. Generally, various sensors, pressure gauges, and drainage systems are installed inside the detection box 11. The general testing content includes, but is not limited to, corrosion resistance, sealing performance, and high temperature resistance. This utility model's device is mainly used to test the tensile and compressive strength of the connection part of two pipe bodies 4. The base 1 is used for support. The moving device 2 includes a pipe fixing seat 21 and a support block 22. The pipe fixing seat 21 is snapped onto and fixed to the pipe body 4, and the pipe fixing seat 21 is fixed to the upper part of the support block 22. The pipe fixing seat is provided with a support roller 23, which is slidably connected to the support rail 12. During installation, the two pipe bodies 4 are generally connected first, and then placed on the moving device 2 using hoisting equipment. The two pipe fixing seats 21 of the mobile device 2 are respectively fixedly connected to the corresponding pipe body 4, and can move the pipe body 4 along with the support block 22 below.

[0024] The base 1 is also equipped with a position adjustment mechanism, which is used to change the position of the support block 22 on the support guide rail 12. Various types of adjustment mechanisms are available; a servo motor-driven lead screw assembly 3 or a manually driven lead screw assembly 3 can be used. Multiple sensors can be installed to directly detect the tensile or compressive strength of the pipe body 4. Besides using the lead screw assembly 3, pneumatic cylinders, electric cylinders, or hydraulic cylinders can also be used. Essentially, they all drive the pipe fixing seat 21 and the support block 22, causing the support roller 23 to move along the support guide rail 12. If, after increasing the predetermined pressure, obvious cracks appear in the connecting part inside the detection box 11, it indicates that the design requirements are not met, and it is impossible to release it to the market in large quantities.

[0025] The position adjustment mechanism of this utility model is a lead screw assembly 3, which includes a lead screw base 31, a movable push plate 32, and an adjusting lead screw 33. A pipe fixing seat 21 is fixedly connected to the base 1, and the movable push plate 32 is slidably connected to the pipe fixing seat 21. The movable push plate 32 is drively connected to the adjusting lead screw 33, and a rotary drive handle or servo motor is hinged to the end of the adjusting lead screw 33. The lead screw assembly 3 is a mature existing technology and can be purchased directly as needed. After fixing the lead screw base 31 through multiple adjustment holes 13, the pressure at the connection point of the pipe body 4 can be determined based on the travel distance of the adjusting lead screw 33, in conjunction with a sensor.

[0026] The base 1 of this utility model is provided with multiple adjustment holes 13. The pipe fixing seat 21 is fixedly connected to the base 1 through the limiting bolts and the adjustment holes 13. The end of the movable push plate 32 abuts against the support block 22. The adjustment holes 13 are used to install the lead screw base 31, and can also be used to adjust the position of the lead screw base 31.

[0027] The movable push plate 32 of this invention is fixedly connected to the support block 22. When measuring compressive strength, the movable push plate 32 can directly abut against the support block 22. When testing tensile strength, the movable push plate 32 needs to be fixedly connected to the support block 22.

[0028] The pipe fixing seat 21 and the movable push plate 32 of this utility model are provided with multiple limiting holes, and limiting pins are inserted into the limiting holes. Whether it is compressive strength or tensile strength, after reaching or exceeding the predetermined value, it needs to stabilize for a period of time. At this time, the position of the movable push plate 32 can be fixed by limiting pins (not shown in the figure). Limiting pins are especially suitable for multiple tests of pipes of uniform specifications in batch testing.

[0029] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A pipe position adjusting device, characterized in that, Includes a base, on which a testing box and a support rail are fixedly mounted. The connection part of the two pipe bodies is located inside the testing box, and the pipe bodies located outside the testing box are respectively connected to a moving device. The moving device includes a pipe fixing seat and a support block. The pipe fixing seat is snapped into and fixed to the pipe body, and the pipe fixing seat is fixed to the upper part of the support block. The pipe fixing seat is provided with a support roller, and the support roller is slidably connected to the support guide rail. The base is also provided with a position adjustment mechanism, which is used to change the position of the support block on the support guide rail.

2. The pipe position adjusting device according to claim 1, characterized in that, The position adjustment mechanism is a lead screw assembly, which includes a lead screw base, a movable push plate, and an adjusting lead screw. The fixed base is fixedly connected to the base, the movable push plate is slidably connected to the fixed base, and the movable push plate is drivenly connected to the adjusting lead screw. A rotary drive handle or servo motor is hinged to the end of the adjusting lead screw.

3. The pipe position adjusting device according to claim 2, characterized in that, The base is provided with multiple adjustment holes, and the fixed seat is fixedly connected to the base through the limiting bolts and the adjustment holes. The end of the movable push plate abuts against the support block.

4. The pipe position adjusting device according to claim 2, characterized in that, The movable push plate is fixedly connected to the support block.

5. The pipe position adjusting device according to claim 2, characterized in that, The fixed base and the movable push plate are provided with multiple limiting holes, and limiting pins are inserted into the limiting holes.

6. The pipe position adjusting device according to claim 1, characterized in that, The position adjustment mechanism is a cylinder / hydraulic cylinder assembly, which is used to push the support block closer to or away from the detection box.