Plastic pipeline pressure testing device

Abstract

The utility model relates to the technical field of plastic pipeline pressure testing, and discloses a plastic pipeline pressure testing device which comprises a test board, a pressure pump is fixedly connected to the top of the test board, a connecting pipe is fixedly connected to one side of the pressure pump, and a pressure gauge is fixedly connected to the outer surface of the connecting pipe and can clamp and seal the joint of the connecting pipe and a plastic pipeline. The situations that the detection result is inaccurate and the pressure resistance and the sealing performance of the pipeline cannot be truly reflected due to gas leakage of the plastic pipeline in the process that the pressure test device conveys gas for detection are avoided, so that the detection time is shortened, the detection cost is reduced, and different from a bayonet and bolt fixing mode in the prior art, the detection efficiency is improved. Manual intervention can be reduced, and the situation that the detection effect is affected by gas leakage due to looseness caused by the fact that a pipeline detection joint is impacted by conveyed gas due to immature operation technology or errors of workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe pressure testing, in particular to a plastic pipe pressure testing device. Background Technique

[0002] In the process of plastic pipe production, in order to ensure that the sealing performance of the pipe system meets the design and use requirements, relevant plastic pipe pressure testing equipment is usually used to pressurize the pipe system, observe whether there is leakage at the pipe connection, and simulate the pressure situation of the pipe in actual operation to evaluate the pressure resistance of the pipe.

[0003] However, due to the generally single structure of the existing pressure testing devices, during the process of connecting plastic pipes for pressure testing, only fixed by buckles and bolts. As the pressure testing device continuously conveys gas into the pipe, if the operation skills of the staff are not mature or mistakes occur, the connection between the pipe and the pressure testing device will become loose under the impact of the gas, resulting in gas leakage, inaccurate test results, unable to truly reflect the pressure resistance and sealing performance of the pipe, thus prolonging the testing time and increasing the testing cost.

[0004] Therefore, we propose a plastic pipe pressure testing device to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the present invention provides a plastic pipe pressure testing device to solve the problems mentioned in the above background technique.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] A plastic pipe pressure testing device includes a test bench, a pressure pump is fixedly connected to the top of the test bench, a connecting pipe is fixedly connected to one side of the pressure pump, a pressure gauge is fixedly connected to the outer surface of the connecting pipe, second chutes are symmetrically opened on the upper end surface of the test bench, moving blocks are slidably connected in the second chutes, support columns are fixedly connected to the upper end surfaces of the moving blocks, sealing rings are fixedly connected to the upper ends of the support columns, and the sealing rings are respectively located on both sides of the connecting pipe.

[0008] As a further solution of the utility model: a first chute is opened on the upper end surface of the test bench, a slider is slidably connected in the first chute, connecting plates are symmetrically rotatably connected to the upper end surface of the slider, and the ends of the connecting plates away from the slider are rotatably connected to the support columns.

[0009] As a further solution of the utility model: a threaded rod is threadedly connected through the slider, one end of the threaded rod is rotatably connected through the test bench, and a knob is fixedly connected to the end of the threaded rod penetrating through the test bench.

[0010] As a further solution of the utility model: cavities are formed on the opposite sides of the sealing rings. U-shaped frames are symmetrically and fixedly connected to one of the sealing rings, and U-shaped grooves are symmetrically formed on the other sealing ring. The U-shaped frames are respectively clamped with the U-shaped grooves.

[0011] As a further solution of the utility model: hollow columns are fixedly connected to the opposite sides of the sealing rings. The hollow columns are communicated with the sealing rings. A piston rod is slidably connected in the hollow column. One end of the piston rod away from the sealing ring is fixedly connected with a pressing plate.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. By arranging the sealing rings, the connection between the connecting pipe and the plastic pipe can be clamped and sealed, preventing gas leakage during the process of the pressure test device transporting gas for detection, which may lead to inaccurate test results and an inability to truly reflect the pressure resistance and sealing performance of the pipe. This shortens the detection time and reduces the detection cost. Different from the existing fixing method using bayonets and bolts, it can reduce manual intervention and avoid the situation where the connection of the pipe detection is loosened by the impact of the transported gas due to immature operation skills or mistakes of the staff, resulting in gas leakage and affecting the detection effect.

[0014] 2. By arranging the hollow columns and the piston rods, the leakage of the pipe during the pressure test can be monitored in a timely manner, so that the staff can know the leakage situation of the pipe in a timely manner, avoiding the situation where the pipe leaks for a long time without being discovered in time, which affects the detection effect. Through timely detection, the pressure data during the pressure test can be ensured to be accurate and reliable, thus more accurately evaluating the pressure resistance and sealing performance of the pipe, avoiding a long and ineffective pressure test process, and shortening the detection time. Description of the Drawings

[0015] For the convenience of those skilled in the art to understand, the utility model will be further described below with reference to the drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 It is an enlarged schematic diagram of area A in the utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure of the sealing rings of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure between the pressing plate and the hollow column of the utility model;

[0020] In the figure: 1. Test bench; 2. Pressure pump; 3. Pressure gauge; 4. Connecting pipe; 5. First chute; 6. Second chute; 7. Slide block; 8. Knob; 9. Threaded rod; 10. Connecting plate; 11. Support column; 12. Moving block; 13. Sealing ring; 14. U-shaped frame; 15. U-shaped groove; 16. Hollow column; 17. Pressing plate; 18. Piston rod; 19. Cavity. Specific implementation mode

[0021] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] Embodiment:

[0023] As Figures 1-4 shown, a plastic pipe pressure test device includes a test bench 1. A pressure pump 2 is fixedly connected to the top of the test bench 1. A connecting pipe 4 is fixedly connected to one side of the pressure pump 2. A pressure gauge 3 is fixedly connected to the outer surface of the connecting pipe 4. Second chutes 6 are symmetrically opened on the upper end surface of the test bench 1. Moving blocks 12 are slidably connected in the second chutes 6. Support columns 11 are fixedly connected to the upper end surfaces of the moving blocks 12. Sealing rings 13 are fixedly connected to the upper ends of the support columns 11. The sealing rings 13 are respectively located on both sides of the connecting pipe 4.

[0024] In this embodiment, as Figure 2 shown, a first chute 5 is opened on the upper end surface of the test bench 1. A slide block 7 is slidably connected in the first chute 5. Connecting plates 10 are symmetrically rotatably connected to the upper end surface of the slide block 7. One ends of the connecting plates 10 far away from the slide block 7 are rotatably connected to the support columns 11. When the slide block 7 slides in the first chute 5, the two support columns 11 can be pulled closer or farther away through the symmetrically rotatably connected connecting plates 10.

[0025] In this embodiment, as Figure 2 shown, a threaded rod 9 is threadedly connected through the slide block 7. One end of the threaded rod 9 penetrates and is rotatably connected to the test bench 1. A knob 8 is fixedly connected to the end of the threaded rod 9 penetrating the test bench 1. When the staff rotates the knob 8 to drive the threaded rod 9 to rotate, the slide block 7 can be driven to move synchronously in the first chute 5 through the threaded connection between the threaded rod 9 and the slide block 7.

[0026] In this embodiment, as Figure 3As shown, cavities 19 are provided on opposite sides of the sealing rings 13. U-shaped frames 14 are symmetrically and fixedly connected to one of the sealing rings 13, and U-shaped grooves 15 are symmetrically provided on the other sealing ring 13. The U-shaped frames 14 are engaged with the U-shaped grooves 15. When the two sealing rings 13 slide closer to each other, the U-shaped frames 14 will be driven to snap into the U-shaped grooves 15. At this time, by providing the U-shaped frames 14 and the U-shaped grooves 15, the sealing performance between the two sealing rings 13 can be enhanced.

[0027] In this embodiment, as Figure 4 shown, hollow columns 16 are fixedly connected to the opposite sides of the sealing rings 13. The hollow columns 16 are in communication with the sealing rings 13. A piston rod 18 is slidably connected in the hollow column 16. One end of the piston rod 18 away from the sealing ring 13 is fixedly connected with a pressing plate 17. When gas enters the cavity 19 inside the sealing ring 13, the gas will flow into the hollow column 16 and at the same time push the piston rod 18 out of the hollow column 16.

[0028] The effects achieved by this embodiment are as follows: In the prior art, during the pressure test of connecting plastic pipes, only through the fixing methods of buckles and bolts. As the pressure test device continuously delivers gas into the pipe, if the operation skills of the staff are not mature enough or mistakes occur, the connection between the pipe and the pressure test device will become loose under the impact of the gas, resulting in gas leakage in the delivered gas, making the test results inaccurate and unable to truly reflect the pressure resistance and sealing performance of the pipe. Furthermore, it prolongs the test time and increases the test cost. Compared with the prior art, it can clamp and seal the connection between the connecting pipe 4 and the plastic pipe, avoiding gas leakage during the process of the pressure test device delivering gas for detection, which may cause inaccurate test results and inability to truly reflect the pressure resistance and sealing performance of the pipe. Thus, it shortens the test time and reduces the test cost. Different from the fixing method using buckles and bolts in the prior art, it can reduce manual intervention and avoid the situation where the connection of the pipe detection is loosened by the impact of the delivered gas due to immature operation skills or mistakes of the staff, resulting in gas leakage and affecting the test effect.

[0029] Secondly, by providing the hollow columns 16 and the piston rod 18, timely leakage monitoring of the pipe during the pressure test can be carried out, so that the staff can timely know the situation of pipe leakage and avoid the situation where the pipe leaks for a long time without being discovered in time, affecting the test effect. And through timely detection, it can ensure that the pressure data during the pressure test is accurate and reliable, thus more accurately evaluating the pressure resistance and sealing performance of the pipe and avoiding a long and ineffective pressure test process, thereby shortening the test time.

[0030] The working process and principle involved in the overall content of the above embodiment are as follows:

[0031] When the staff needs to conduct a pressure test on the plastic pipeline, first connect one end of the plastic pipeline to the connecting pipe 4, and then push the pressing plates 17 on both sides to drive the piston rod 18 to slide into the hollow column 16. After the piston rod 18 completely slides into the hollow column 16, the staff can rotate the knob 8 to drive the threaded rod 9 to rotate on the test bench 1. Since the threaded rod 9 is threadedly connected to the slider 7, when the threaded rod 9 rotates, it can drive the slider 7 to horizontally move towards the pressure pump 2 inside the first chute 5, and at the same time pull one end of the connecting plate 10 symmetrically rotatably connected to the upper end surface of the slider 7 to move synchronously. When one end of the connecting plate 10 is pulled, the connecting plate 10 can pull the support column 11 rotated at the other end, and drive the moving block 12 connected to the lower end of the support column 11 to slide and approach each other inside the second chute 6. As the two moving blocks 12 and the support column 11 approach, it can drive the sealing ring 13 connected to the upper end surface of the support column 11 to move synchronously closer to the connection between the connecting pipe 4 and the plastic water pipe, and make the two sealing rings 13 wrap the connection, thereby preventing air leakage at the connection;

[0032] When the two sealing rings 13 approach each other, the U-shaped frame 14 connected to one of the sealing rings 13 will be stuck into the U-shaped groove 15 opened on the other sealing ring 13. When the U-shaped frame 14 is completely stuck into the U-shaped groove 15, it can not only make the connection between the two sealing rings 13 tighter, but also prevent the gas from leaking out through the gap between the two sealing rings 13 when there is a leak at the connection between the connecting pipe 4 and the plastic pipeline, thereby improving the sealing performance between the sealing rings 13;

[0033] When there is a leak at the connection between the connecting pipe 4 and the plastic pipeline, the leaked gas will first enter the cavity 19 inside the two sealing rings 13. As the cavity 19 is filled, the gas will flow into the hollow column 16 and push the piston rod 18 inside the hollow column 16 to slide out of the hollow column 16. At this time, when the staff observes the piston rod 18, they can immediately suspend the pressure test on the plastic pipeline and re-check and repair the connection between the plastic pipeline and the connecting pipe 4.

[0034] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A plastic pipe pressure testing device, characterized in that: The test bench (1) comprises a test bench (1), wherein a pressure pump (2) is fixedly connected to the top of the test bench (1), a connecting pipe (4) is fixedly connected to one side of the pressure pump (2), a pressure gauge (3) is fixedly connected to the outer surface of the connecting pipe (4), a second slide groove (6) is symmetrically provided on the upper end surface of the test bench (1), a moving block (12) is slidably connected in the second slide groove (6), the upper end surface of the moving block (12) is fixedly connected to a support column (11), the upper end of the support column (11) is fixedly connected to a sealing ring (13), and the sealing ring (13) is respectively located on both sides of the connecting pipe (4).

2. A plastic pipe pressure testing device according to claim 1, characterized in that: The upper end surface of the test bench (1) is provided with a first slide groove (5), a slider (7) is slidably connected in the first slide groove (5), a connecting plate (10) is symmetrically rotatably connected to the upper end surface of the slider (7), and the end of the connecting plate (10) away from the slider (7) is rotatably connected to the support column (11).

3. A plastic pipe pressure testing device according to claim 2, characterized in that: A threaded rod (9) is threadedly connected to the slider (7), one end of the threaded rod (9) is rotatably connected to the test bench (1), and one end of the threaded rod (9) is fixedly connected to a knob (8) passing through the test bench (1).

4. A plastic pipe pressure testing device according to claim 1, characterized in that: A cavity (19) is provided on opposite sides of the sealing rings (13); a U-shaped frame (14) is symmetrically fixedly connected to one of the sealing rings (13); a U-shaped groove (15) is symmetrically provided on the other sealing ring (13); and the U-shaped frame (14) and the U-shaped groove (15) are mutually clamped.

5. A plastic pipe pressure testing device according to claim 1, characterized in that: A hollow column (16) is fixedly connected to the opposite side of the sealing ring (13), and the hollow column (16) is connected to the sealing ring (13). A piston rod (18) is slidably connected inside the hollow column (16), and a pressing plate (17) is fixedly connected to the end of the piston rod (18) away from the sealing ring (13).

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