Automatic up-buckling type pressure test device for oil pipe

By designing an automatic tubing clamping pressure testing device, an electric push rod and a motor-driven threaded rod system are used to achieve automatic clamping and rotational clamping of the tubing, solving the problem of time-consuming and labor-intensive manual operation, and improving pressure testing efficiency and equipment stability.

CN223796372UActive Publication Date: 2026-01-13DONGYING TIANHE IND & TRADE CO LTD
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Patent Information

Application Number
CN202520063598.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-13
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

In the existing technology, oil pipe pressure testing is carried out manually, which is time-consuming, labor-intensive, and inefficient.

Method used

An automatic tubing clamping and pressure testing device was designed. It uses an electric push rod, motor and threaded rod system to realize automatic clamping and rotation clamping of the tubing. The two ends of the tubing are connected by a sealing sleeve thread, simplifying the operation process.

Benefits of technology

The automated connection process for tubing pressure testing has been achieved, improving work efficiency, ensuring equipment stability and connection accuracy, and reducing manual operation time and labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of detection equipment, and provides an oil pipe automatic upward buckling type pressure test device, which comprises a base and a 7-shaped fixing piece, the 7-shaped fixing piece is connected to the top end of the base, a control groove is formed in the top end of the base, and a two-way threaded rod is rotatably connected in the control groove. The two-way threaded rod is in threaded connection with two matched threaded pieces, the top ends of the two threaded pieces penetrate through the control groove to be connected with moving plates, the two moving plates are provided with plugging sleeve heads, the top end of the base is connected with two lower arc-shaped clamping pieces, and rotating grooves are formed in the inner side walls of the two lower arc-shaped clamping pieces. Driving rollers are rotationally connected into the four rotating grooves, two first rotating rods are rotationally connected between the two lower arc-shaped clamping pieces, the two ends of the two first rotating rods are connected to the driving rollers, and a second rotating rod is rotationally connected between the two lower arc-shaped clamping pieces, so that the purposes of automatically screwing on and improving the working efficiency are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to an automatic oil pipe buckle-type pressure testing device. Background Technology

[0002] An oil pipeline is a conduit used to transport crude oil and natural gas from an oil and gas reservoir to the surface after drilling is completed. It is designed to withstand the pressure generated during the extraction process.

[0003] In the production and processing of oil pipes, it is necessary to test and pressure the oil pipes. During the pressure test, it is necessary to fasten the oil pipes at both ends. However, when the fastening is done manually, it is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic tubing coupling pressure testing device to solve the problems mentioned in the background technology, such as the time-consuming, labor-intensive, and inefficient nature of manual coupling.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic oil pipe clamping pressure testing device, comprising a base and a 7-shaped fixing component, the 7-shaped fixing component being fixedly connected to the top of the base. A control groove is provided at the top of the base, and a bidirectional threaded rod is rotatably connected inside the control groove. Two mating threaded components are threaded onto the bidirectional threaded rod, and the tops of both threaded components penetrate the control groove and are connected to a movable plate. Each movable plate is provided with a sealing sleeve, one end of which has a liquid inlet. A motor connected to the bidirectional threaded rod is installed at one end of the base. Two lower arc-shaped clamps are fixedly connected to the top of the base, and the inner sides of the two lower arc-shaped clamps... Each of the four walls has a rotating groove, and a drive roller is rotatably connected inside each of the four rotating grooves. Two first rotating rods are rotatably connected between the two lower arc-shaped clamps, and both ends of the two first rotating rods are connected to the drive rollers. A second rotating rod is rotatably connected between the two lower arc-shaped clamps. The second rotating rod is equipped with a first sprocket and two first gears. Each of the two first rotating rods is equipped with two second gears that mesh with the first gears. A second sprocket is provided on the bidirectional threaded rod. A chain is connected between the second sprocket and the first sprocket. Two electric push rods are installed on the inner lower side wall of the 7-shaped fixing member. The bottom end of the electric push rod is connected to an upper arc-shaped clamp that cooperates with the lower arc-shaped clamp.

[0008] By adopting the above technical solution, the oil pipe is placed on two lower arc-shaped clamps. Two electric push rods are activated to move the upper arc-shaped clamps, allowing them to engage with the lower arc-shaped clamps to hold and fix the oil pipe. A motor is then activated to rotate a bidirectional threaded rod, which in turn rotates a second sprocket. The second sprocket, via a chain, drives a first sprocket and a second rotating rod. The second rotating rod drives two second gears, which in turn drive four first gears, thus rotating two first rotating rods. These first rotating rods then drive a roller, which in turn rotates the oil pipe. Simultaneously, the bidirectional threaded rod moves two threaded components, which in turn move a moving plate and a sealing sleeve, bringing the sealing sleeve closer to both ends of the oil pipe. As the oil pipe continues to rotate, the threads of the sealing sleeve are engaged at both ends, facilitating pressure testing of the oil pipe through the inlet. This achieves automatic engagement and improves work efficiency.

[0009] Optionally, all four drive rollers are provided with anti-slip pads.

[0010] By adopting the above technical solution, the anti-slip pad is used to increase the friction between the drive roller and the oil pipe, so that the drive roller can easily drive the oil pipe to rotate, thereby improving the stability of the equipment.

[0011] Optionally, rollers are rotatably connected to the inner sidewalls of both upper arc-shaped clamps.

[0012] By adopting the above technical solution, the roller is used to reduce the friction between the upper arc-shaped clamp and the oil pipe, thereby improving the smoothness of equipment operation.

[0013] Optionally, each of the two lower arc-shaped clamps and the two upper arc-shaped clamps is fixedly connected to an arc-shaped kit at one end near the moving plate. An arc-shaped limiting member is slidably connected inside the arc-shaped kit, and multiple evenly distributed springs are provided between the arc-shaped limiting member and the arc-shaped kit.

[0014] By adopting the above technical solution, the arc-shaped limiting component is used to limit the position of the oil pipe near both ends, so that the two ends of the oil pipe are aligned with the two sealing sleeves, thereby improving the accuracy of the equipment fastening. When the equipment fastens the oil pipe, the sealing sleeve pushes the arc-shaped limiting component to move, and the arc-shaped limiting component pushes the spring to retract, which facilitates the installation of the sealing sleeve.

[0015] Optionally, mounting holes are provided at all four corners of the base.

[0016] By adopting the above technical solution, the mounting holes are used to facilitate the installation of the equipment in a designated location, thereby improving the stability of the equipment.

[0017] (III) Beneficial Effects

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] This automatic tubing clamping pressure testing device places the tubing on two lower arc-shaped clamps. Activating two electric push rods moves the upper arc-shaped clamps, causing them to engage with the lower arc-shaped clamps to hold and fix the tubing. A motor then drives a bidirectional threaded rod to rotate, which in turn drives a second sprocket. The second sprocket, via a chain, drives a first sprocket and a second rotating rod. The second rotating rod drives two second gears, which in turn drive four first gears, thus rotating two first rotating rods. These first rotating rods then drive a roller, which in turn rotates the tubing. Simultaneously, the bidirectional threaded rod moves two threaded components, which in turn move a moving plate and a sealing sleeve, bringing the sealing sleeve closer to both ends of the tubing. As the tubing continues to rotate, the sealing sleeve threads onto both ends of the tubing, facilitating pressure testing through the inlet. This automatic clamping mechanism improves work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first side view of the present invention;

[0021] Figure 2 This is a first cross-sectional view of the present invention.

[0022] Figure 3 This utility model Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0024] In the diagram: 1. Base; 2. 7-shaped fixing piece; 3. Two-way threaded rod; 4. Threaded part; 5. Moving plate; 6. Sealing sleeve; 7. Liquid inlet; 8. Motor; 9. Lower arc-shaped clamp; 10. Drive roller; 11. First rotating rod; 12. Second rotating rod; 13. First sprocket; 14. First gear; 15. Second gear; 16. Second sprocket; 17. Chain; 18. Electric push rod; 19. Upper arc-shaped clamp; 20. Anti-slip pad; 21. Roller; 22. Arc-shaped kit; 23. Arc-shaped limit piece; 24. Spring; 25. Mounting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1-4An automatic pressure testing device for oil pipes includes a base 1 and a 7-shaped fixing member 2, which is fixedly connected to the top of the base 1. A control groove is provided at the top of the base 1, and a bidirectional threaded rod 3 is rotatably connected inside the control groove. Two mating threaded parts 4 are threaded onto the bidirectional threaded rod 3. The tops of both threaded parts 4 penetrate the control groove and are connected to a moving plate 5. Each moving plate 5 is equipped with a sealing sleeve 6, one end of which has a liquid inlet 7. A motor 8 connected to the bidirectional threaded rod 3 is installed at one end of the base 1. Two lower arc-shaped clamps 9 are fixedly connected to the top of the base 1. Each of the four lower arc-shaped clamping members 9 has a rotating groove on its inner sidewall. A drive roller 10 is rotatably connected inside each of the four rotating grooves. Two first rotating rods 11 are rotatably connected between the two lower arc-shaped clamping members 9, with both ends of the first rotating rods 11 connected to the drive rollers 10. A second rotating rod 12 is rotatably connected between the two lower arc-shaped clamping members 9. The second rotating rod 12 is equipped with a first sprocket 13 and two first gears 14. Each of the two first rotating rods 11 is equipped with two second gears 15 that mesh with the first gears 14. A second sprocket 16 is provided on the bidirectional threaded rod 3, and the second sprocket 16 is connected to the first sprocket 13 via a transmission connection. There is a chain 17 and two electric push rods 18 installed on the inner lower side wall of the 7-shaped fixing part 2. The bottom end of the electric push rod 18 is connected to an upper arc-shaped clamp 19 that cooperates with the lower arc-shaped clamp 9. The oil pipe is placed on the two lower arc-shaped clamps 9. The two electric push rods 18 are started to drive the upper arc-shaped clamp 19 to move, so that the upper arc-shaped clamp 19 cooperates with the lower arc-shaped clamp 9 to clamp and fix the oil pipe. The motor 8 is started to drive the bidirectional threaded rod 3 to rotate. The bidirectional threaded rod 3 drives the second sprocket 16 to rotate. The second sprocket 16 drives the first sprocket 13 and the second rotating rod 12 to rotate through the chain 17. The second rotating rod 12 drives the two The second gear 15 rotates, and the two second gears 15 simultaneously drive the four first gears 14 to rotate, thereby driving the two first rotating rods 11 to rotate. The first rotating rods 11 drive the roller 10 to rotate, thereby causing the roller 10 to drive the oil pipe to rotate. The bidirectional threaded rod 3 simultaneously drives the two threaded parts 4 to move. The threaded parts 4 drive the moving plate 5 and the sealing sleeve 6 to move, thereby bringing the sealing sleeve 6 closer to both ends of the oil pipe. At this time, the oil pipe continues to rotate, so that the threads of the sealing sleeve 6 are engaged at both ends of the oil pipe, which facilitates pressure testing of the oil pipe through the inlet 7, thereby achieving automatic engagement and improving work efficiency.

[0028] Reference Figure 2 and Figure 3 Each of the four drive rollers 10 is equipped with an anti-slip pad 20. The anti-slip pad 20 is used to increase the friction between the drive roller 10 and the oil pipe, so that the drive roller 10 can easily drive the oil pipe to rotate, thereby improving the stability of the equipment.

[0029] Reference Figure 2 and Figure 3Rollers 21 are rotatably connected to the inner walls of the two upper arc-shaped clamps 19. The rollers 21 are used to reduce the friction between the upper arc-shaped clamps 19 and the oil pipe, thereby improving the smoothness of equipment operation.

[0030] Reference Figure 2 and Figure 4 Two lower arc-shaped clamps 9 and two upper arc-shaped clamps 19 are fixedly connected to one end of the moving plate 5 with an arc-shaped kit 22. An arc-shaped limiting member 23 is slidably connected inside the arc-shaped kit 22. Multiple evenly distributed springs 24 are provided between the arc-shaped limiting member 23 and the arc-shaped kit 22. The arc-shaped limiting member 23 is used to limit the position of the oil pipe near both ends, so that the two ends of the oil pipe are aligned with the two sealing sleeves 6, thereby improving the accuracy of the equipment fastening. When the equipment fastens the oil pipe, the sealing sleeve 6 pushes the arc-shaped limiting member 23 to move, and the arc-shaped limiting member 23 pushes the spring 24 to retract, which facilitates the installation of the sealing sleeve 6.

[0031] Reference Figure 1 Mounting holes 25 are provided at all four corners of the base 1. The mounting holes 25 are used to facilitate the installation of the equipment in a designated position, thereby improving the stability of the equipment.

[0032] In summary, the working principle and process of this automatic oil pipe clamping pressure testing device are as follows: First, the oil pipe is placed on two lower arc-shaped clamps 9. Then, two electric push rods 18 are activated to move the upper arc-shaped clamp 19, causing it to engage with the lower arc-shaped clamps 9 to clamp and fix the oil pipe. Next, the motor 8 is activated to rotate the bidirectional threaded rod 3, which in turn rotates the second sprocket 16. The second sprocket 16, via a chain 17, drives the first sprocket 13 and the second rotating rod 12. The second rotating rod 12 drives two second gears 15, which in turn drive four first gears 14, thereby rotating the two first rotating rods 11. The first rotating rods 11 then drive the roller 10, which in turn rotates the oil pipe. Simultaneously, the bidirectional threaded rod 3 drives two threaded components 4, which in turn move the moving plate 5 and the sealing sleeve 6, bringing the sealing sleeve 6 closer to both ends of the oil pipe. At this time, the oil pipe continues to rotate, so that the threaded plug 6 is fastened to both ends of the oil pipe. This facilitates pressure testing of the oil pipe through the inlet 7, thereby achieving automatic fastening and improving work efficiency. The anti-slip pad 20 is used to increase the friction between the drive roller 10 and the oil pipe, so that the drive roller 10 can easily drive the oil pipe to rotate, thereby improving the stability of the equipment. The roller 21 is used to reduce the friction between the upper arc-shaped clamp 19 and the oil pipe, thereby improving the smoothness of equipment operation. The arc-shaped limiting piece 23 is used to limit the position of the oil pipe near both ends, so that the two ends of the oil pipe are aligned with the two plug 6, thereby improving the fastening accuracy of the equipment. When the equipment fastens the oil pipe, the plug 6 pushes the arc-shaped limiting piece 23 to move, and the arc-shaped limiting piece 23 pushes the spring 24 to retract, which facilitates the installation of the plug 6. The mounting hole 25 is used to facilitate the installation of the equipment in a designated position, thereby improving the stability of the equipment.

[0033] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automatic coiling pressure testing device for oil pipes, comprising a base (1), characterized in that: The system includes a 7-shaped fastener (2), which is fixedly connected to the top of the base (1). The top of the base (1) has a control groove, and a bidirectional threaded rod (3) is rotatably connected inside the control groove. Two mating threaded parts (4) are threaded onto the bidirectional threaded rod (3). The tops of the two threaded parts (4) are connected to a moving plate (5) through the control groove. Both moving plates (5) are equipped with sealing sleeves (6). One end of one sealing sleeve (6) is equipped with a liquid inlet (7). One end of the base (1) is equipped with a motor (8) connected to the bidirectional threaded rod (3). The top of the base (1) is fixedly connected to two lower arc-shaped clamps (9). The inner sidewalls of the two lower arc-shaped clamps (9) are provided with rotating grooves. The interiors of the four rotating grooves are rotatably connected to a drive roller (10). Two first rotating rods (11) are rotatably connected between the clamps (9). Both ends of the two first rotating rods (11) are connected to the drive roller (10). A second rotating rod (12) is rotatably connected between the two lower arc-shaped clamps (9). A first sprocket (13) and two first gears (14) are provided on the second rotating rod (12). Two second gears (15) that mesh with the first gears (14) are provided on the two first rotating rods (11). A second sprocket (16) is provided on the bidirectional threaded rod (3). A chain (17) is connected between the second sprocket (16) and the first sprocket (13). Two electric push rods (18) are installed on the inner lower side wall of the 7-shaped fixing member (2). The bottom end of the electric push rod (18) is connected to an upper arc-shaped clamp (19) that cooperates with the lower arc-shaped clamp (9).

2. The automatic coiling pressure testing device for oil pipes according to claim 1, characterized in that: Each of the four drive rollers (10) is provided with an anti-slip pad (20).

3. The automatic coiling pressure testing device for oil pipes according to claim 1, characterized in that: Rollers (21) are rotatably connected to the inner sidewalls of both upper arc-shaped clamps (19).

4. The automatic coiling pressure testing device for oil pipes according to claim 1, characterized in that: Two lower arc-shaped clamps (9) and two upper arc-shaped clamps (19) are fixedly connected to an arc-shaped kit (22) at one end near the moving plate (5). An arc-shaped limiting member (23) is slidably connected inside the arc-shaped kit (22). Multiple evenly distributed springs (24) are provided between the arc-shaped limiting member (23) and the arc-shaped kit (22).

5. The automatic coiling pressure testing device for oil pipes according to claim 1, characterized in that: Mounting holes (25) are provided at all four corners of the base (1).