Sealing device for pressure test of water supply pipeline

Abstract

The utility model relates to the technical field of pipeline pressure testing, and discloses a sealing device for pressure testing of a water supply pipeline, which comprises a mounting base and a sealing connecting pipe fixedly mounted in the middle of one side of the inner wall of the mounting base. An operator places a test pipeline at one end of the sealing connecting pipe, and starts an electric telescopic column to move upwards to drive a trapezoidal supporting block to move upwards together, so that lower convex long plates movably mounted at the two ends of the trapezoidal supporting block move upwards under the ejection of the trapezoidal supporting block; furthermore, a U-shaped groove pushes a hollow cylinder which is movably mounted in an inner cavity of the U-shaped groove to drive a semicircular block to be tightly attached to the two sides of the outer wall of the test pipeline and the two sides of the outer wall of the sealing connecting pipe; the two sides of the outer wall of the test pipeline and the two sides of the outer wall of the sealing connecting pipe are clamped and fixed through the semicircular blocks installed on the two sides of the upper end of the trapezoidal supporting block through the downward-convex long plate, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline pressure testing, in particular to a sealing device for water supply pipeline pressure testing. Background Technique

[0002] Pipelines are mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. After the production of pipelines, in order to ensure their ex-factory quality, it is necessary to test the pressure inside the pipelines. Usually during the test, it is required to keep the inside of the pipeline static under a certain pressure condition for a period of time. At the same time, during the detection process, the sealing performance of the pipeline is required to be relatively high, so a sealing device is needed to block and test the pipeline.

[0003] For example, a pipeline sealing device for pipeline hydrostatic test with the application number CN202122124612.X includes a connection base, a sealing pipe, an exhaust connection pipe, a sealing ring and a test pipeline. The connection base is installed on the hydrostatic testing machine. During the test, it is connected to the test pipeline through the sealing pipe and sealed. A sealing gasket is arranged at the sealing part to further improve the sealing effect, facilitate the sealing of the test pipeline and facilitate the experimental test.

[0004] When the above-mentioned patented pipeline sealing device for pipeline hydrostatic test is used, the pipeline hydrostatic experiment is carried out by connecting the pipeline to be tested and the sealing pipe. However, when the pipeline to be tested is connected to the sealing pipe, it is fixed by screws. Such a connection method makes the installation and disassembly of the pipeline to be tested relatively troublesome.

[0005] Therefore, we propose a sealing device for water supply pipeline pressure testing to solve the problems raised above. Content of the Utility Model

[0006] The purpose of the utility model is to provide a sealing device for water supply pipeline pressure testing to solve the problem that the pipeline hydrostatic experiment is carried out by connecting the pipeline to be tested and the sealing pipe as mentioned in the above background technique. However, when the pipeline to be tested is connected to the sealing pipe, it is fixed by screws. Such a connection method makes the installation and disassembly of the pipeline to be tested relatively troublesome.

[0007] To achieve the above object, the utility model provides the following technical solutions: A sealing device for testing the pressure of a water supply pipeline, including an installation base and a sealing connection pipe fixedly installed in the middle of one side of the inner wall of the installation base. An exhaust connection pipe is arranged on one side of the outer wall of the sealing connection pipe. One end of the sealing connection pipe is connected to a test pipeline. A support assembly is sleeved in the middle of the outer surface of the test pipeline. A clamping assembly is arranged at the connection of the sealing connection pipe and the test pipeline. The clamping assembly is adapted to press the test pipeline and install it on one side of the sealing connection pipe. Two sides at the lower end of the outer wall of the clamping assembly are movably installed with limiting assemblies, and the other ends of the limiting assemblies are fixedly installed on both sides of the middle of the inner wall of the installation base;

[0008] The clamping assembly includes a lifting mechanism and driving mechanisms respectively movably installed on both sides of the upper end of the lifting mechanism. A clamping mechanism is movably installed in the middle of the upper end of the driving mechanism.

[0009] Preferably, the lifting mechanism includes an electric telescopic column and a trapezoidal support block fixedly installed in the middle of the upper end of the electric telescopic column. Guide grooves are opened in the middle of both sides of one end of the trapezoidal support block.

[0010] Preferably, the driving mechanism includes a lower convex long plate and a concave groove opened in the middle of the lower end of the outer wall of the lower convex long plate. First circular grooves are opened on both sides of the lower end of the inner wall of the concave groove.

[0011] Preferably, a second circular groove is arranged in the middle of one end of the outer wall of the lower convex long plate. A U-shaped groove is opened in the middle of the upper end of the lower convex long plate. Third circular grooves are opened on both sides of the upper end of the inner wall of the U-shaped groove.

[0012] Preferably, the clamping mechanism includes a semi-circular block and a wrapping groove opened in the middle of the inner wall of the semi-circular block. An extension block is fixedly installed in the middle of one end of the outer wall of the semi-circular block. A hollow cylinder is fixedly installed in the middle of one end of the extension block.

[0013] Preferably, the limiting assembly includes a long rod and a limiting rod fixedly installed at one end of the long rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The operator places the test pipeline at one end of the sealing connection pipe. By starting the electric telescopic column to move upward, the trapezoidal support block is driven to move upward together, so that the lower convex long plates movably installed at both ends of the trapezoidal support block move upward under the pushing of the trapezoidal support block. Furthermore, the U-shaped groove pushes the hollow cylinder movably installed in its inner cavity to drive the semi-circular block to be tightly attached to both sides of the outer walls of the test pipeline and the sealing connection pipe. As the electric telescopic column continues to move upward, the semi-circular blocks installed on both sides of the upper end of the trapezoidal support block by the lower convex long plate clamp and fix both sides of the outer walls of the test pipeline and the sealing connection pipe, which is convenient to use.

[0016] 2. When the lower convex long plate moves up and down following the trapezoidal support block, the limiting rod will rotate in the inner cavity of the second circular groove to limit the movement of the lower convex long plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0018] Figure 2 is a schematic three-dimensional structure diagram of the limiting component of the present utility model;

[0019] Figure 3 of the present utility model Figure 2 is an enlarged view of part A;

[0020] Figure 4 is a schematic three-dimensional structure diagram of the clamping component of the present utility model.

[0021] In the figure: 1. Installation base; 2. Sealed connecting pipe; 3. Exhaust connecting pipe; 4. Test pipeline; 5. Support component; 6. Clamping component; 61. Lifting mechanism; 611. Electric telescopic column; 612. Trapezoidal support block; 613. Guide groove; 62. Driving mechanism; 621. Lower convex long plate; 622. Concave groove; 623. First circular groove; 624. Second circular groove; 625. U-shaped groove; 626. Third circular groove; 7. Limiting component; 71. Long rod; 72. Limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. 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 creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1: Please refer to Figures 1 - 4 , a sealing device for testing the pressure of a water supply pipeline, including an installation base 1 and a sealed connecting pipe 2 fixedly installed in the middle of one side of the inner wall of the installation base 1. An exhaust connecting pipe 3 is arranged on one side of the outer wall of the sealed connecting pipe 2. One end of the sealed connecting pipe 2 is connected to a test pipeline 4. A support component 5 is sleeved in the middle of the outer surface of the test pipeline 4. A clamping component 6 is arranged at the connection of the sealed connecting pipe 2 and the test pipeline 4, and the clamping component 6 is adapted to tightly press and install the test pipeline 4 on one side of the sealed connecting pipe 2. The lower ends of both sides of the outer wall of the clamping component 6 are movably installed with a limiting component 7, and the other ends of the limiting component 7 are fixedly installed on both sides of the middle of the inner wall of the installation base 1.

[0024] The clamping assembly 6 includes a lifting mechanism 61 and driving mechanisms 62 movably installed on both sides of the upper end of the lifting mechanism 61 respectively. The middle part of the upper end of the driving mechanism 62 is movably installed with a clamping mechanism 63.

[0025] The lifting mechanism 61 includes an electric telescopic column 611 and a trapezoidal support block 612 fixedly installed in the middle of the upper end of the electric telescopic column 611. Guide grooves 613 are formed in the middle of both sides of one end of the trapezoidal support block 612.

[0026] The driving mechanism 62 includes a lower convex long plate 621 and a concave groove 622 formed in the middle of the lower end of the outer wall of the lower convex long plate 621. First circular grooves 623 are formed on both sides of the lower end of the inner wall of the concave groove 622. The inner cavity of the first circular groove 623 is movably installed in the inner cavity of the guide groove 613 through a movable shaft.

[0027] A second circular groove 624 is arranged in the middle of one end of the outer wall of the lower convex long plate 621. A U-shaped groove 625 is formed in the middle of the upper end of the lower convex long plate 621. Third circular grooves 626 are formed on both sides of the upper end of the inner wall of the U-shaped groove 625. The third circular grooves 626 are sleeved on both sides of the outer wall of the hollow cylinder 634. By passing a movable shaft through the third circular groove 626 and the hollow cylinder 634, the U-shaped groove 625 and the hollow cylinder 634 are movably connected.

[0028] In this embodiment: The operator places the test pipe 4 at one end of the sealed connecting pipe 2. A sealing ring is installed at one end of the sealed connecting pipe 2 in advance to improve the sealing performance of the connection between the test pipe 4 and the sealed connecting pipe 2. After the test pipe 4 and the sealed connecting pipe 2 are butted, by starting the electric telescopic column 611 to move upward, the trapezoidal support block 612 is driven to move upward together, so that the lower convex long plates 621 movably installed at both ends of the trapezoidal support block 612 move upward under the pushing of the trapezoidal support block 612. Furthermore, the U-shaped groove 625 pushes the hollow cylinder 634 movably installed in its inner cavity to drive the semi-circular blocks 631 to be closely attached to both sides of the outer walls of the test pipe 4 and the sealed connecting pipe 2. As the electric telescopic column 611 continues to move upward, the semi-circular blocks 631 installed on both sides of the upper end of the trapezoidal support block 612 by the lower convex long plate 621 clamp and fix both sides of the outer walls of the test pipe 4 and the sealed connecting pipe 2, which is convenient to use.

[0029] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 2 , the clamping mechanism 63 includes a semi-circular block 631 and a wrapping groove 632 formed in the middle of the inner wall of the semi-circular block 631. An extension block 633 is fixedly installed in the middle of one end of the outer wall of the semi-circular block 631. A hollow cylinder 634 is fixedly installed in the middle of one end of the extension block 633.

[0030] The limiting component 7 includes a long rod 71 and a limiting rod 72 fixedly installed at one end of the long rod 71. The limiting rod 72 is movably installed in the inner cavity of the second circular groove 624.

[0031] In this embodiment: when the lower convex long plate 621 moves up and down following the trapezoidal support block 612, the limiting rod 72 rotates in the inner cavity of the second circular groove 624 to perform movable limiting on the lower convex long plate 621.

[0032] Working principle: The operator places the test pipeline 4 at one end of the sealed connecting pipe 2. A sealing ring is installed at one end of the sealed connecting pipe 2 in advance to improve the sealing performance of the connection between the test pipeline 4 and the sealed connecting pipe 2. After docking the test pipeline 4 and the sealed connecting pipe 2, by starting the electric telescopic column 611 to move upward, the trapezoidal support block 612 is driven to move upward together. When the lower convex long plate 621 moves up and down following the trapezoidal support block 612, the limiting rod 72 rotates in the inner cavity of the second circular groove 624 to perform movable limiting on the lower convex long plate 621. The lower convex long plates 621 movably installed at both ends of the trapezoidal support block 612 move upward under the pushing of the trapezoidal support block 612, thereby enabling the U-shaped groove 625 to push the hollow cylinder 634 movably installed in its inner cavity to drive the semi-circular block 631 to be in close contact with the outer walls on both sides of the test pipeline 4 and the sealed connecting pipe 2. As the electric telescopic column 611 continues to move upward, the semi-circular blocks 631 installed at both upper ends of the trapezoidal support block 612 through the lower convex long plate 621 clamp and fix the outer walls on both sides of the test pipeline 4 and the sealed connecting pipe 2.

[0033] Among them, the structures and working principles of the installation base, the sealed connecting pipe, the exhaust connecting pipe, and the support component are the same as those of the connection base, the sealed pipe, the exhaust connecting pipe, the sealing ring, the test pipeline, the shock-absorbing connecting mechanism, the fixing ring, the fixing mechanism, the connection chassis, the connection pressing rod, the damping shock-absorbing spring, the twisting rod, the connection rotating shaft, and the shock-absorbing fixing plate in the publication number CN215985037U, and will not be elaborated here.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sealing device for testing the pressure of a water supply pipeline, comprising a mounting base (1) and a sealing connecting pipe (2) fixedly mounted in the middle of one side of the inner wall of the mounting base (1), an exhaust connecting pipe (3) being arranged on one side of the outer wall of the sealing connecting pipe (2), one end of the sealing connecting pipe (2) being connected to a test pipeline (4), and a supporting assembly (5) being sleeved in the middle of the outer surface of the test pipeline (4), characterized in that: The connection between the sealed connecting pipe (2) and the test pipe (4) is provided with a clamping assembly (6), the clamping assembly (6) being suitable for pressing the test pipe (4) to be installed on one side of the sealed connecting pipe (2), the lower end of the outer wall of the clamping assembly (6) being movably mounted with a limit assembly (7), and the other end of the limit assembly (7) being fixedly mounted on both sides of the middle part of the inner wall of the mounting base (1); The clamping assembly (6) comprises a lifting mechanism (61) and driving mechanisms (62) movably mounted on both sides of the upper end of the lifting mechanism (61), and a clamping mechanism (63) is movably mounted in the middle of the upper end of the driving mechanism (62).

2. A sealing device for water supply pipeline pressure testing according to claim 1, characterized in that: The lifting mechanism (61) comprises an electric telescopic column (611) and a trapezoidal support block (612) fixedly mounted in the middle of the upper end of the electric telescopic column (611), wherein guide grooves (613) are provided in the middle of both sides of one end of the trapezoidal support block (612).

3. A sealing device for water supply pipeline pressure testing according to claim 1, characterized in that: The driving mechanism (62) comprises a lower convex long plate (621) and a concave groove (622) provided in the middle of the lower end of the outer wall of the lower convex long plate (621), and first circular grooves (623) are provided on both sides of the lower end of the inner wall of the concave groove (622).

4. A sealing device for water supply pipeline pressure testing according to claim 3, characterized in that: A second circular groove (624) is provided in the middle of one end of the outer wall of the lower convex long plate (621), a U-shaped groove (625) is provided in the middle of the upper end of the lower convex long plate (621), and third circular grooves (626) are provided on both sides of the upper end of the inner wall of the U-shaped groove (625).

5. A sealing device for water supply pipeline pressure testing according to claim 1, characterized in that: The clamping mechanism (63) comprises a semicircular block (631) and a wrapping groove (632) provided in the middle of the inner wall of the semicircular block (631); an extension block (633) is fixedly mounted in the middle of one end of the outer wall of the semicircular block (631); and a hollow cylinder (634) is fixedly mounted in the middle of one end of the extension block (633).

6. A sealing device for water supply pipeline pressure testing according to claim 1, characterized in that: The limiting assembly (7) comprises a long rod (71) and a limiting rod (72) fixedly mounted on one end of the long rod (71).

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