Gas pipeline port quick sealing device

Abstract

The utility model provides a gas pipeline port quick sealing device, including bottom plate, vertical installation connecting rod on the bottom plate, the upper end of connecting rod installs nut, and nut and connecting rod cooperate through the thread structure, the connecting rod between nut and bottom plate is successively equipped with compression part, intermediate plate and silica gel ball, and the center through -hole that cooperates with connecting rod is opened in compression part, intermediate plate and silica gel ball respectively in the middle, the compression part includes port baffle and compression cylinder, and one end of compression cylinder is fixed with port baffle, and the other end of compression cylinder is in contact with one side of intermediate plate, when using, port baffle is fixed with the cooperation of the port of gas pipeline, and through the nut drive compression part, intermediate plate extrude silica gel ball deformation, make the outer periphery of silica gel ball and the inner wall of gas pipeline closely contact and form the plugging. The utility model is convenient to operate installation and dismounting, and the plugging effect of gas pipeline port is good, and can be repeatedly used, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to a pipeline sealing tool, and to improvements in the structure and performance of sealing components, particularly to a quick-sealing device for gas pipeline ports used in underground pipelines. Background Technology

[0002] Underground installation of gas pipelines is a common method for laying existing gas pipelines. By constructing a centralized natural gas supply network, it improves the convenience and safety of people's lives and production. Due to the requirements of the underground environment and conditions, gas pipelines need to possess certain properties such as corrosion resistance, safety, long-term serviceability, and impact resistance. Therefore, polyethylene (PE) pipes are generally preferred. Among them, seven types of PE pipes are commonly used: Ф40, Ф50, Ф63, Ф90, Ф110, Ф160, and Ф200, all with a durability rating of 10 MPa. The laying process for underground gas pipelines generally involves first excavating the ground to the required depth; then placing the PE pipes sequentially into the trench along the designated route; followed by heat fusion connection between the pipes; and finally backfilling and leveling the trench. During the laying process, debris can easily enter the pipelines; due to open-air construction, large amounts of water can accumulate inside the pipelines during the rainy season or when the groundwater level is high. This causes significant difficulties for purging and commissioning before gas supply, and makes it impossible to thoroughly remove impurities and water, posing potential hazards for long-term gas supply and subsequent equipment.

[0003] Furthermore, gas pipelines may rupture or leak during use, requiring on-site repairs. These repairs necessitate shutting down the gas supply, which disrupts normal gas usage, leading to losses and complaints. Repairing leaks or replacing pipes on pressurized gas pipelines while they are still in operation presents significant time constraints and safety hazards. Existing gas sealing devices are complex to use and insufficiently effective at sealing leaks.

[0004] For example, the "temporary gas pipeline plugger" disclosed in Chinese Patent (authorization announcement number CN223120980 U) includes a screw, a push block, and a push rod. The push block is fixed to one end of the screw, and the push rod is fixed to the upper surface of the push block. The outer wall of the push rod is provided with a gripping impact assembly. The gripping impact assembly includes a limiting ring fixedly disposed on the outer wall of the push rod, and a guide post is fixedly connected to one side of the push block. An impact ring is fixedly installed on the outer wall of the guide post, and two impact posts are provided on one side of the impact ring. An impact sleeve is installed on one side of the impact post.

[0005] For example, Chinese Patent (Authorization Announcement No. CN223035986 U) discloses a "Polyethylene Gas Pipe Sealing Device". This utility model relates to the technical field of sealing devices and discloses a polyethylene gas pipe sealing device, including a plug one and a plug two. The plug two is slidably connected inside the plug one. The plug one has a threaded post threadedly connected inside it. One end of the threaded post is fixedly connected to a handle. The threaded post passes through the inside of the plug one. The other end of the threaded post is provided with a transmission assembly. The transmission assembly includes a connecting shaft and a tapered post. One end of the connecting shaft is fixedly connected to the other end of the threaded post. The tapered post is rotatably connected to the outer wall of the connecting shaft. A fixing plate is fixedly connected inside the plug two.

[0006] The aforementioned gas sealing devices have improved performance, but the long-term sleeves or plugs using mechanical mechanisms are insufficient in terms of sealing and isolation. The sealing and disassembly operations are time-consuming and labor-intensive, which is not conducive to the rapid installation of gas pipeline ports. Utility Model Content

[0007] The purpose of this invention is to provide a quick-sealing device for gas pipeline ports, which solves the problems of cumbersome operation and insufficient sealing and isolation effect of existing gas pipeline port sealing.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted: A gas pipeline port quick-sealing device includes a base plate on which a connecting rod is vertically mounted. A nut is installed at the upper end of the connecting rod, and the nut engages with the connecting rod via a threaded structure. A clamping element, an intermediate plate, and a silicone ball are sequentially fitted onto the connecting rod between the nut and the base plate. Each of the clamping element, intermediate plate, and silicone ball has a central through hole that mates with the connecting rod. The clamping element includes a port baffle and a clamping cylinder. One end of the clamping cylinder is fixed to the port baffle, and the other end is in movable contact with one side of the intermediate plate. In use, the port baffle is fixed to the port of the gas pipeline. The nut drives the clamping element and intermediate plate to compress and deform the silicone ball, causing the outer circumference of the silicone ball to tightly contact the inner wall of the gas pipeline, forming a seal.

[0009] To further achieve the objectives of this utility model, the following technical solutions may also be adopted: In the gas pipeline port quick-sealing device described above, the contact area between the silicone ball and the intermediate plate and the bottom plate is a plane, and the diameter of the plane is 0.25-0.5 times the diameter of the silicone ball.

[0010] In the gas pipeline port quick-sealing device described above, the diameter of the silicone ball is 3-4 mm smaller than the inner diameter of the gas pipeline.

[0011] In the gas pipeline port quick-sealing device described above, the diameter of the central through hole of the silicone ball is 1-2 mm smaller than the diameter of the connecting rod.

[0012] As described above, in the gas pipeline port quick-sealing device, the port baffle, intermediate plate, and bottom plate are all circular plates. The diameter of the port baffle is 10-30 mm larger than the inner diameter of the gas pipeline, and the diameters of the intermediate plate and bottom plate are 2-3 mm smaller than the inner diameter of the gas pipeline. In the gas pipeline port quick-sealing device described above, the height of the connecting rod is 1.4-1.5 times the diameter of the silicone ball.

[0013] In the gas pipeline port quick-sealing device described above, the nut is a wing nut.

[0014] In the gas pipeline port quick-sealing device described above, the major diameter of the thread at the upper end of the connecting rod is 2-3 mm smaller than the diameter of the central through hole of the silicone ball.

[0015] Compared with the prior art, the advantages of this utility model are: This device is easy to operate, install, and disassemble. Using nuts, especially wing nuts, it can quickly seal pipe ports manually, saving half the time compared to existing pipe sealing devices.

[0016] This device provides excellent sealing for gas pipeline ports. The port baffle works in conjunction with the end of the gas pipeline to achieve overall positioning. The clamping component, intermediate plate, and bottom plate work together to compress and deform the silicone ball, allowing it to fit tightly against the inner wall of the gas pipeline to form an internal and external barrier. At the same time, the silicone ball has good deformation properties and a certain degree of hardness, and its contact with the inner wall of the gas pipeline is surface-shaped, which can significantly improve the sealing performance of the gas pipeline port.

[0017] This utility model is lightweight, easy to carry, and reusable. It has no electronic components, ensuring good safety. It is suitable for sealing gas pipeline ports in newly laid pipelines and in situations where gas supply is uninterrupted, and has a wide range of applications. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is an exploded view of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a diagram showing the usage status of this utility model installed at the port of a gas pipeline.

[0020] Figure label: 1-Base plate, 2-Connecting rod, 3-Wing nut, 4-Clamping component, 41-Port baffle, 42-Clamping cylinder, 5-Intermediate plate, 6-Silicone ball, 61-Flat surface, 7-Gas pipeline. Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] In the description of the embodiments of this utility model, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution. like Figure 1 , Figure 2 As shown in the figure, this embodiment discloses a gas pipeline port quick-sealing device, including a base plate 1, on which a connecting rod 2 is vertically mounted. The upper part of the connecting rod 2 has an external thread structure, and a nut engages with the connecting rod 2 through the thread structure.

[0022] A clamping component 4, an intermediate plate 5, and a silicone ball 6 are sequentially fitted onto the connecting rod 2 between the nut and the base plate 1. The clamping component 4, the intermediate plate 5, and the silicone ball 6 each have a central through hole that mates with the connecting rod 2.

[0023] The clamping component 4 includes a port baffle 41 and a clamping cylinder 42. One end of the clamping cylinder 42 is fixed to the port baffle 41, and the other end of the clamping cylinder 42 is in movable contact with one side of the intermediate plate 5.

[0024] In this embodiment, the base plate 1, the intermediate plate 5, and the port baffle 41 of the clamping member 4 are all circular plates, and the intermediate plate 5 and the port baffle 41 have a central through hole in the center. To ensure the strength of the base plate 1, the intermediate plate 5, the port baffle 41, and the clamping cylinder 42, it is preferable to use stainless steel plates with a thickness of 2mm or more.

[0025] See also Figure 1 As shown, in order to adapt to different gas pipeline diameters, the diameter of the port baffle 41 is set to be 10-30mm larger than the inner diameter of the gas pipeline, and the diameters of the intermediate plate 5 and the bottom plate 1 are 2-3mm smaller than the inner diameter of the gas pipeline.

[0026] The connecting rod 2 is a circular rod, with its lower end fixed to the center of the base plate 1, and its upper part having external threads. To prevent wear on the central through-hole of the silicone ball 6 during installation, it is preferable that the major diameter of its thread be 2-3 mm smaller than the diameter of the central through-hole of the silicone ball 6.

[0027] See Figure 2 As shown, in this embodiment, for ease of installation and disassembly, the nut is set as a wing nut 3. The wing nut 3 can be manually tightened or loosened.

[0028] See Figure 1 , Figure 3 As shown, to facilitate the pressing and fixing of the silicone ball 6 by the intermediate plate 5 and the base plate 1, and to ensure that the silicone ball 6 is subjected to consistent pressure and deformation, the contact area between the silicone ball 6 and the intermediate plate 5 and the base plate 1 is set as a plane 61. The diameter of the plane 61 is 0.25-0.5 times the diameter of the silicone ball 6.

[0029] The diameter of the silicone ball 6 is 3-4mm smaller than the inner diameter of the gas pipeline. This allows the silicone ball 6 to better fit tightly against the inner wall of the gas pipeline, forming an internal and external barrier. At the same time, the silicone ball 6 has good deformation properties and a certain degree of hardness, and its contact with the inner wall of the gas pipeline is surface-shaped, which can significantly improve the sealing performance of the gas pipeline port.

[0030] Because the silicone ball 6 has a certain degree of elasticity, to prevent leakage between the silicone ball 6 and the connecting rod 2, the diameter of the central through hole of the silicone ball is 1-2 mm smaller than the diameter of the connecting rod 2. This ensures that, under operating conditions, the silicone ball 6 can form a sealed contact with the connecting rod 2 inwards and with the inner wall of the gas pipeline inwards.

[0031] In order to reduce the weight of this utility model and make it easy to carry and install, the height of the connecting rod 2 is controlled within the range of 1.4-1.5 times the diameter of the silicone ball 6.

[0032] like Figure 3 As shown, before use, first install the silicone ball 6, intermediate plate 5, and clamping component 4 onto the connecting rod 2 in sequence, and then tighten the wing nut 3 to complete the assembly of the device. During use, insert the wing nut 3 at the outermost end into the port of the gas pipeline 7; at this time, the port baffle 41 cooperates with the port of the gas pipeline 7 to form overall support and positioning for the device. The nut drives the clamping component 4 and intermediate plate 5 to compress and deform the silicone ball 6, causing the outer circumference of the silicone ball 6 to make tight contact with the inner wall of the gas pipeline 7 to form a seal.

[0033] All technical contents not described in detail in this utility model are publicly known technologies.

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