Pipeline sealing performance detection pressing device

Abstract

The invention discloses a pipeline sealing performance detection pressing device which comprises a mounting ring, a plurality of third grooves are formed in the outer surface of the mounting ring, sliding rods are slidably mounted in inner cavities of the third grooves, one end of each sliding rod is rotatably connected with a fastening plate, and transverse plates are fixedly mounted on the two sides of the mounting ring. The detection mechanism is used for detecting the sealing performance of the pipeline; the detection mechanism comprises a manual hydraulic pump, the manual hydraulic pump is fixedly installed at the top of the transverse plate, a water tank is fixedly installed at the top of the transverse plate, and the water tank and the manual hydraulic pump are connected through a connecting pipe; water is output to the position between the fastening plate and the inner wall of the pipeline through the high-pressure hose, the sealing performance between the fastening plate and the inner wall of the pipeline can be improved through the raw material belt, in this way, water can be prevented from leaking from the position between the inner wall of the pipeline and the fastening plate, and when a pipeline without sealing performance is encountered, water can flow out of a pipeline gap; therefore, a worker can visually observe the sealing performance of the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline sealing test technology, specifically a pipeline sealing test pressure device. Background Technology

[0002] Whether it's the construction and acceptance of newly built pipelines or the investigation of potential hazards in old pipelines, it is necessary to verify the airtightness. For large-diameter pipelines that are mostly used to transport oil and gas, in order to avoid safety accidents, waste of resources or environmental pollution caused by leakage of oil and gas, it is necessary to conduct airtightness testing on the pipelines before use.

[0003] Existing pipeline sealing testing devices are mostly suitable for small-diameter pipelines. In use, both ends of the pipeline are sealed, and then water is pumped into the pipeline. After the pipeline is filled with water, it is observed whether there is any water leakage, thus determining whether the pipeline connection is sealed. However, in actual use, pipelines used to transport oil and gas are large in diameter and long. In this case, testing the sealing of pipeline connections by pumping water into the pipeline requires pumping a large amount of water into the pipeline, which not only requires a large amount of water but also takes a long time to fill the pipeline, which is too time-consuming.

[0004] Therefore, a pipeline sealing test pressure device is proposed to address the above problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve the problem of difficulty in testing the sealing performance of large-diameter pipe connections, this invention proposes a pipe sealing performance testing pressure device.

[0006] A pipeline sealing performance testing pressure test device includes an installation ring, a plurality of third grooves are formed on the outer surface of the installation ring, a slide rod is slidably installed in the inner cavity of the third groove, a fastening plate is rotatably connected to one end of the slide rod, and a cross plate is fixedly installed on both sides of the installation ring; It also includes testing agencies for testing pipeline sealing. The testing mechanism includes a manual hydraulic pump, which is fixedly installed on the top of a horizontal plate. A water tank is fixedly installed on the top of the horizontal plate. The water tank and the manual hydraulic pump are connected by a connecting pipe. A pressure gauge and a high-pressure hose are fixedly installed on the outer surface of the manual hydraulic pump. A pressure rod is rotatably installed on the top of the manual hydraulic pump. The high-pressure hose is fixedly connected to a fastening plate. The outer surface of the fastening plate is wrapped with PTFE tape.

[0007] Preferably, a support plate is fixedly installed on the inner surface of the mounting ring, and a first bidirectional threaded rod is rotatably connected to the top of the support plate, with a first motor fixedly connected to one side of the first bidirectional threaded rod.

[0008] Preferably, a support frame is fixedly connected to one side of the first motor, the support frame is fixedly connected to a support plate, a first groove is provided on one side of the mounting plate, and the support frame is slidably installed in the inner cavity of the first groove.

[0009] Preferably, the outer surface of the mounting plate is provided with a plurality of second grooves, and a rotating rod is rotatably mounted in the inner cavity of the second groove, the rotating rod being rotatably connected to the sliding rod.

[0010] Preferably, the top of the cross plate has a fourth groove, a support shaft is slidably installed in the inner cavity of the fourth groove, a roller is rotatably installed at the bottom of the support shaft, and a fifth groove is provided at the top of the support shaft.

[0011] Preferably, a spring rod is fixedly installed in the inner cavity of the fifth groove, and a connecting rod is fixedly connected to the output end of the spring rod. The connecting rod is slidably installed in the inner cavity of the fifth groove.

[0012] Preferably, a crossbar is fixedly connected to the top of the connecting rod, and an electric telescopic rod is fixedly connected to the bottom of the crossbar, with the electric telescopic rod fixedly installed on the top of the crossbar.

[0013] Preferably, a seventh groove is provided at the top of the cross plate, two clamping rods are slidably installed in the inner cavity of the seventh groove, and a second bidirectional threaded rod is rotatably installed in the inner cavity of the seventh groove, the second bidirectional threaded rod being threadedly connected to the two clamping rods.

[0014] Preferably, a second motor is fixedly connected to one end of the second bidirectional threaded rod, the second motor is fixedly installed on one side of the horizontal plate, a battery is movably installed on the top of the horizontal plate, a sixth groove is provided on both sides of the battery, and the clamping rod is slidably installed in the sixth groove.

[0015] Preferably, the first motor, the electric telescopic rod, and the second motor are all linearly connected to the battery.

[0016] The advantages of this invention are: 1. This invention uses a sliding rod to push the fastening plate, allowing it to fit tightly against the inner wall of the pipe. Then, by rotating the pressure rod, water from the inner cavity of the water tank is drawn into the inner cavity of the high-pressure hose. The water is then output through the high-pressure hose to the space between the fastening plate and the inner wall of the pipe. The use of PTFE tape increases the sealing between the fastening plate and the inner wall of the pipe, preventing water leakage between the pipe and the fastening plate. In cases where the pipe is not sealed, water will leak out from the gaps, allowing workers to visually observe the pipe's sealing performance. For pipes without gaps, as water is injected into the space between the fastening plate and the inner wall of the pipe through the high-pressure hose, the pressure gauge will display the water pressure. If the water pressure gradually increases and there is no water leakage, it indicates that the pipe's sealing performance is qualified.

[0017] 2. In this invention, the output end of the electric telescopic rod retracts, causing the crossbar to move downwards. The crossbar further slides the connecting rod within the fifth groove cavity. At this time, the connecting rod compresses the spring rod, which in turn compresses the support shaft, causing it to slide within the fourth groove cavity. The support shaft, along with the roller, contacts the inner wall of the pipe. This causes the sliding rod to move the fastening plate closer to the mounting ring, bringing the roller into contact with the inner wall of the pipe. The spring rod is then compressed and cannot extend. At this point, the pipe sealing test pressure device can be pushed to rotate the roller, thereby driving the pipe sealing test pressure device within the pipe.

[0018] 3. When the battery needs to be charged, the second motor output shaft drives the second bidirectional threaded rod to rotate. The second bidirectional threaded rod drives the two clamping rods to move away from each other, thereby causing the clamping rods to slide out of the inner cavity of the sixth groove. At this time, the battery can be taken out and charged. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of a horizontal plate connection structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a spring rod mounting structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a battery mounting structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection structure of a manual hydraulic pump according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a rotating rod connection structure according to an embodiment of the present invention.

[0021] In the diagram: 1. Mounting ring; 2. Support plate; 21. First double-threaded rod; 22. Support frame; 23. First motor; 24. Mounting plate; 241. Second groove; 242. Rotating rod; 243. Third groove; 244. Slide rod; 25. Fastening plate; 3. Horizontal plate; 31. Fourth groove; 32. Support shaft; 321. Fifth groove; 322. Roller; 323. Spring rod; 33. Connecting rod; 34. Crossbar; 35. Electric telescopic rod; 4. Battery; 401. Sixth groove; 41. Seventh groove; 42. Clamping rod; 43. Second double-threaded rod; 44. Second motor; 5. Water tank; 51. Manual hydraulic pump; 52. Pressure gauge; 53. Pressure rod; 54. High-pressure hose. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 6 As shown, a pipeline sealing performance testing pressure device includes an installation ring 1. The outer surface of the installation ring 1 has several third grooves 243. A slide rod 244 is slidably installed inside the third groove 243. One end of the slide rod 244 is rotatably connected to a fastening plate 25. Horizontal plates 3 are fixedly installed on both sides of the installation ring 1. The device also includes a testing mechanism for testing pipeline sealing performance. The testing mechanism includes a manual hydraulic pump 51, which is fixedly installed on the top of the horizontal plate 3. A water tank 5 is fixedly installed on the top of the horizontal plate 3. The water tank 5 and the manual hydraulic pump 51 are connected via a connecting pipe. A pressure gauge 52 and a high-pressure hose 54 are fixedly installed on the outer surface of the manual hydraulic pump 51. A pressure rod 53 is rotatably installed on the top of the manual hydraulic pump 51. The high-pressure hose 54 is fixedly connected to the fastening plate 25. The outer surface of the fastening plate 25 is wrapped with PTFE tape.

[0024] Existing pipe sealing testing devices are not suitable for testing the sealing of large-diameter pipe connections and cannot meet the needs of rapid testing.

[0025] In use, the pipe sealing test pressure device is first moved to the connection between two pipes. Then, the fastening plate 25 is pushed by the slide rod 244 so that the fastening plate 25 can be tightly attached to the inner wall of the pipe. Next, the water in the water tank 5 is drawn out into the high-pressure hose 54 by rotating the pressure rod 53. Then, the water is output through the high-pressure hose 54 to the space between the fastening plate 25 and the inner wall of the pipe. The use of PTFE tape can increase the sealing between the fastening plate 25 and the inner wall of the pipe. This can prevent water from leaking from the inner wall of the pipe and the fastening plate 25. When encountering a pipe that is not sealed, water will flow out from the gaps in the pipe, so the operator can directly observe the sealing of the pipe. For pipes without gaps, as the high-pressure hose 54 injects water between the fastening plate 25 and the inner wall of the pipe, the pressure gauge 52 will display the water pressure. If the water pressure gradually increases and there is no water leakage, it indicates that the pipe sealing is qualified. This method only requires a small amount of water to complete the sealing test of the connection of a large-diameter pipe.

[0026] Furthermore, such as Figure 2 As shown, a support plate 2 is fixedly installed on the inner surface of the mounting ring 1, and a first bidirectional threaded rod 21 is rotatably connected to the top of the support plate 2. A first motor 23 is fixedly connected to one side of the first bidirectional threaded rod 21. A support frame 22 is fixedly connected to one side of the first motor 23. The support frame 22 is fixedly connected to the support plate 2. A first groove is provided on one side of the mounting plate 24. The support frame 22 is slidably installed in the inner cavity of the first groove.

[0027] When in use, the first bidirectional threaded rod 21 is rotated by the output shaft of the first motor 23. The first bidirectional threaded rod 21 can drive the two mounting plates 24 to move away from each other or closer to each other. When the mounting plates 24 slide, the support frame 22 can limit the mounting plates 24. At this time, the support frame 22 slides in the inner cavity of the first groove.

[0028] Furthermore, such as Figure 6 As shown, the outer surface of the mounting plate 24 is provided with a plurality of second grooves 241, and a rotating rod 242 is rotatably mounted in the inner cavity of the second groove 241. The rotating rod 242 is rotatably connected to the sliding rod 244.

[0029] In use, the two mounting plates 24 slide synchronously, which can drive the connected rotating rods 242 to rotate. The two mounting plates 24 move closer to each other, which can reduce the included angle between the two adjacent rotating rods 242, thereby allowing the rotating rods 242 to slide against the sliding rods 244 in the inner cavity of the third groove 243. The sliding rods 244 further push against the fastening plate 25 and are close to the inner wall of the pipe. The two ends of the rotating rods 242 are connected to the sliding rods 244 and the mounting plates 24 respectively, which can further limit the two mounting plates 24, thereby making the mounting plates 24 more stable when sliding.

[0030] Furthermore, such as Figure 2 and Figure 3 As shown, the top of the horizontal plate 3 is provided with a fourth groove 31, the inner cavity of the fourth groove 31 is slidably installed with a support shaft 32, the bottom of the support shaft 32 is rotatably installed with a roller 322, and the top of the support shaft 32 is provided with a fifth groove 321. A spring rod 323 is fixedly installed in the inner cavity of the fifth groove 321, and a connecting rod 33 is fixedly connected to the output end of the spring rod 323. The connecting rod 33 is slidably installed in the inner cavity of the fifth groove 321. The top of the connecting rod 33 is fixedly connected to a crossbar 34, and the bottom of the crossbar 34 is fixedly connected to an electric telescopic rod 35. The electric telescopic rod 35 is fixedly installed on the top of the crossbar 3.

[0031] In use, to facilitate the movement of the pipeline sealing test pressure device, it is first placed inside the pipeline cavity. Then, the output end of the electric telescopic rod 35 retracts, causing the crossbar 34 to move downwards. The crossbar 34 further slides the connecting rod 33 within the fifth groove 321. At this time, the connecting rod 33 compresses the spring rod 323, which in turn compresses the support shaft 32, causing it to slide within the fourth groove 31. The support shaft 32, along with the roller 322, contacts the inner wall of the pipeline. Simultaneously, the sliding rod 244, carrying the fastening plate 25, moves closer to the mounting ring 1, bringing the roller 322 into contact with the inner wall of the pipeline. When the spring rod 323 is compressed and cannot extend, the roller 322 can be rotated by pushing the pipeline sealing test pressure device, thereby driving the pipeline sealing test pressure device inside the pipeline. When the pipeline sealing test pressure device needs to be installed, the output end of the electric telescopic rod 35 extends, moving the crossbar 34 and connecting rod 33. At this time, the spring rod 323 extends, and the support shaft 32 can slide in the inner cavity of the fourth groove 31. When the fastening plate 25 is pressed against the inner wall of the pipeline, the spring rod 323 provides a buffer between the roller 322 and the inner wall of the pipeline, avoiding affecting the seal between the fastening plate 25 and the inner wall of the pipeline.

[0032] Furthermore, such as Figure 4 As shown, a seventh groove 41 is provided on the top of the horizontal plate 3. Two clamping rods 42 are slidably installed in the inner cavity of the seventh groove 41. A second bidirectional threaded rod 43 is rotatably installed in the inner cavity of the seventh groove 41. The second bidirectional threaded rod 43 is threadedly connected to the two clamping rods 42. The second bidirectional threaded rod 43 is fixedly connected to one end of the second motor 44, which is fixedly installed on one side of the horizontal plate 3. The battery 4 is movably installed on the top of the horizontal plate 3. The battery 4 has a sixth groove 401 on both sides. The clamping rod 42 is slidably installed in the sixth groove 401. The first motor 23, the electric telescopic rod 35, and the second motor 44 are all linearly connected to the battery 4.

[0033] When the present invention is in use, when it is necessary to charge the battery 4, the output shaft of the second motor 44 drives the second bidirectional threaded rod 43 to rotate. The second bidirectional threaded rod 43 drives the two clamping rods 42 to move away from each other, thereby causing the clamping rods 42 to slide out of the inner cavity of the sixth groove 401. At this time, the battery 4 can be taken out and charged.

[0034] Working principle: When using this invention, firstly, the pipe sealing test pressure device is moved to the connection point of the two pipes. Then, the fastening plate 25 is pushed by the slide rod 244 so that the fastening plate 25 can be tightly attached to the inner wall of the pipe. Next, by rotating the pressure rod 53, water in the inner cavity of the water tank 5 is drawn out to the inner cavity of the high-pressure hose 54. Then, the water is output through the high-pressure hose 54 to the space between the fastening plate 25 and the inner wall of the pipe. The use of Teflon tape can increase the sealing between the fastening plate 25 and the inner wall of the pipe. This can prevent water from leaking from the inner wall of the pipe and the fastening plate 25. When encountering a pipe that is not sealed, water will flow out from the gaps in the pipe, and the operator can directly observe the sealing of the pipe. For pipes without gaps, as the high-pressure hose 54 injects water between the fastening plate 25 and the inner wall of the pipe, the pressure gauge 52 will display the water pressure. If the water pressure gradually increases and there is no water leakage, it indicates that the pipe sealing is qualified.

[0035] The retraction of the output end of the electric telescopic rod 35 moves the crossbar 34 downwards. The crossbar 34 further slides the connecting rod 33 in the inner cavity of the fifth groove 321. At this time, the connecting rod 33 will squeeze the spring rod 323. The spring rod 323 further squeezes the support shaft 32 and slides in the inner cavity of the fourth groove 31. The support shaft 32, along with the roller 322, contacts the inner wall of the pipe. At this time, the sliding rod 244 moves the fastening plate 25 closer to the mounting ring 1, so that the roller 322 contacts the inner wall of the pipe. At this time, the spring rod 323 is compressed and cannot extend. At this time, the pipe sealing test pressure device can be pushed to make the roller 322 rotate, thereby driving the pipe sealing test pressure device in the pipe. When it is necessary to charge the battery 4, the output shaft of the second motor 44 drives the second bidirectional threaded rod 43 to rotate. The second bidirectional threaded rod 43 drives the two clamping rods 42 to move away from each other, thereby making the clamping rods 42 slide out from the inner cavity of the sixth groove 401. At this time, the battery 4 can be taken out and charged.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A pipeline sealing detection pressing device, comprising a mounting ring (1), a plurality of third grooves (243) are formed on the outer surface of the mounting ring (1), a sliding rod (244) is slidably installed in the third groove (243), one end of the sliding rod (244) is rotatably connected with a fastening plate (25), and lateral plates (3) are fixedly installed on both sides of the mounting ring (1). It also comprises a detection mechanism for detecting the sealing property of the pipeline. characterized in that The detection mechanism comprises a manual hydraulic pump (51) fixedly installed on the top of the lateral plate (3), a water tank (5) fixedly installed on the top of the lateral plate (3), the water tank (5) and the manual hydraulic pump (51) are connected through a connecting pipe, a pressure gauge (52) and a high-pressure hose (54) are fixedly installed on the outer surface of the manual hydraulic pump (51), a pressing rod (53) is rotatably installed on the top of the manual hydraulic pump (51), the high-pressure hose (54) is fixedly connected with the fastening plate (25), and raw material tape is wrapped on the outer surface of the fastening plate (25).

2. The pipe sealing detection and pressing device according to claim 1, characterized in that: A support plate (2) is fixedly installed on the inner surface of the mounting ring (1), a first bidirectional threaded rod (21) is rotatably connected to the top of the support plate (2), and a first motor (23) is fixedly connected to one side of the first bidirectional threaded rod (21).

3. The pipe sealing detection and pressing device according to claim 2, characterized in that: A support frame (22) is fixedly connected to one side of the first motor (23), the support frame (22) is fixedly connected with the support plate (2), a first groove is formed on one side of a mounting plate (24), and the support frame (22) is slidably installed in the inner cavity of the first groove.

4. The pipe sealing detection and pressing device according to claim 3, characterized in that: A plurality of second grooves (241) are formed on the outer surface of the mounting plate (24), a rotating rod (242) is rotatably installed in the inner cavity of the second groove (241), and the rotating rod (242) is rotatably connected with the sliding rod (244).

5. The device according to claim 1, wherein: A fourth groove (31) is formed on the top of the lateral plate (3), a support shaft (32) is slidably installed in the inner cavity of the fourth groove (31), a roller (322) is rotatably installed at the bottom of the support shaft (32), and a fifth groove (321) is formed on the top of the support shaft (32).

6. The pipe sealing detection and pressing device according to claim 5, characterized in that: A spring rod (323) is fixedly installed in the inner cavity of the fifth groove (321), a connecting rod (33) is fixedly connected to the output end of the spring rod (323), and the connecting rod (33) is slidably installed in the inner cavity of the fifth groove (321).

7. The device according to claim 6, wherein: A horizontal rod (34) is fixedly connected to the top of the connecting rod (33), an electric telescopic rod (35) is fixedly installed at the bottom of the horizontal rod (34), and the electric telescopic rod (35) is fixedly installed on the top of the lateral plate (3).

8. The device according to claim 7, wherein: A seventh groove (41) is formed on the top of the lateral plate (3), two clamping rods (42) are slidably installed in the inner cavity of the seventh groove (41), a second bidirectional threaded rod (43) is rotatably installed in the inner cavity of the seventh groove (41), and the second bidirectional threaded rod (43) is threadedly connected with the two clamping rods (42).

9. The device according to claim 8, wherein: One end of the second bidirectional threaded rod (43) is fixedly connected with a second motor (44), the second motor (44) is fixedly installed on one side of the horizontal plate (3), the top of the horizontal plate (3) is movably installed with a storage battery (4), sixth grooves (401) are formed in the two sides of the storage battery (4), and the clamping rod (42) is slidably installed in the sixth grooves (401).

10. The device according to claim 9, wherein: The first motor (23), the electric telescopic rod (35) and the second motor (44) are linearly connected with the storage battery (4).

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