Gas pipeline butt joint fixing device

Abstract

The utility model discloses a gas pipeline butt joint fixing device, and relates to the field of gas pipeline connection. The pipeline comprises a first pipeline body and a second pipeline body, the opposite ends of the first pipeline body and the second pipeline body are connected through a first flange and a second flange, fixing devices are arranged on the outer sides of the first flange and the second flange, and each fixing device comprises a fixing ring. The two hoops are arranged on the outer side of the limiting piece in a sleeving mode, the hoops are arranged to further enhance the stability of flange connection, the connection stability of a gas pipeline is really improved through the limiting effect of the inner side cavity on the limiting piece, bolt connection serves as a main supporting structure, and strong connection force is provided; and the hoop serves as an auxiliary connecting structure, on the premise that the main connecting function is not affected, the connecting stability and strength are further enhanced, installation operation is more convenient, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline connection, specifically a gas pipeline docking and fixing device. Background Technology

[0002] Flange connections are widely used in the field of gas pipelines. They achieve effective connection of pipelines by tightly connecting two flanges. At the same time, their excellent sealing performance and pressure bearing capacity ensure that gas does not leak and guarantee the safe operation of the pipeline. In addition, the easy disassembly and installation characteristics of flange connections greatly facilitate pipeline maintenance and repair. Their strong adaptability allows them to meet the needs of pipelines with different pressures and diameters. Standardized design and good interchangeability further enhance their ease of application.

[0003] Currently, flange connections are the primary method for connecting gas pipelines. Although some patents, such as "A Gas Pipeline Connection Fixing Device" (patent number 202022659709.6) and "Civil Gas Pipeline Connection Fixing Device" (patent number 202321423964.8), have proposed improving the stability of pipeline connections by setting up fixing devices, these innovative designs have indeed enhanced the stability of the connection to some extent. However, the installation and operation steps of these fixing devices are relatively complex, which greatly reduces the convenience of pipeline connections. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide a gas pipeline docking and fixing device to solve the technical problem that the operation of traditional flange-connected pipeline fixing devices is relatively cumbersome.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas pipeline docking and fixing device, comprising a first pipeline and a second pipeline, the opposite ends of the first pipeline and the second pipeline being connected by a first flange and a second flange, a fixing device being provided on the outer side of the first flange and the second flange, the fixing device comprising a fixing ring, a groove being formed between the fixing ring and the first flange and the second flange, a retaining ring being provided inside the groove, a limiting piece being provided on the outer side of the retaining ring, and two clamps being provided on the outer side of the limiting piece.

[0006] By adopting the above technical solution, two clamps are fitted on the outside of the limiting plate and the inner cavity is used for limiting, thus realizing the integration of the traditional flange clamp connection and the modern bolt connection. The bolt connection, as the main support structure, ensures the stability of the pipeline connection and provides strong support for the entire connection.

[0007] Furthermore, both of the clamps are provided with mounting ears on both sides and are connected in a detachable manner by bolts.

[0008] By adopting the above technical solution, the clamp can be more easily connected to the pipeline system. By connecting the mounting ears with bolts, the clamp can be stably fixed in the required position, and it is not easy to shift or loosen, thereby ensuring the stability and safety of the pipeline connection.

[0009] Furthermore, the inner side of the clamp has a cavity with a "U" shaped cross-section to accommodate the limiting piece.

[0010] By adopting the above technical solution, the cavity can tightly accommodate the limiting piece. This design allows the limiting piece to be securely placed inside the clamp, making it difficult for it to fall off or shift. The cavity with a "U" shaped cross-section matches the shape of the limiting piece, providing good fitting and stability, and further enhancing the firmness of the pipe connection.

[0011] Furthermore, multiple limiting pieces are provided, and they are arranged in an equidistant ring along the central axis of the retaining ring.

[0012] By adopting the above technical solution, uniform force is ensured in the pipeline connection. Multiple limiting plates disperse the pressure at the pipeline connection, avoiding the risk of damage caused by excessive force at a single point, thereby improving the stability and safety of the pipeline system.

[0013] Furthermore, a placement groove is formed between adjacent limiting pieces to accommodate the connecting bolts of the first flange and the second flange.

[0014] By adopting the above technical solution, the placement groove can orderly accommodate the connecting bolts of the first flange and the second flange, so that the connecting bolts are properly placed and protected. By placing the bolts in the special groove, it can effectively prevent the bolts from loosening or being damaged due to external factors, thereby ensuring the stability of the flange connection.

[0015] Furthermore, the fixing ring is fixedly connected to the first pipeline and the second pipeline, and the slot engages with the retaining ring.

[0016] By adopting the above technical solution, the stability of the entire docking and fixing device is ensured. This connection method allows the fixing ring to fit tightly against the pipeline, making it less prone to displacement, and providing a stable foundation for the subsequent connection of flanges and retaining rings.

[0017] Furthermore, the first flange and the second flange are respectively connected to the first pipeline and the second pipeline in a plug-in structure.

[0018] By adopting the above technical solution, this connection method is simple and quick, which can significantly improve installation efficiency. The plug-in structure makes the connection between the flange and the pipeline tighter, reducing the gaps that may appear at the connection, thereby reducing the risk of gas or liquid leakage.

[0019] In summary, the present invention has the following main advantages:

[0020] This utility model uses a fixing device to fit two clamps on the outside of the limiting plate. The clamps are designed to further enhance the stability of the flange connection. The inner cavity limits the limiting plate, ensuring that the clamps are tightly fixed to the limiting plate and will not slip or shift. This combination of bolt and clamp connections effectively improves the connection stability of gas pipelines. The bolt connection, as the main supporting structure, provides strong connection force; while the clamps, as an auxiliary connection structure, further enhance the stability and strength of the connection without affecting the main connection function, and also make installation and operation more convenient, improving work efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram showing the position and structure of the fixing ring of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the clamp of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the limiting piece of this utility model.

[0025] In the diagram: 101, First pipeline; 102, Second pipeline; 103, First flange; 104, Second flange; 2, Fixing device; 201, Fixing ring; 202, Slot; 203, Snap ring; 204, Limiting piece; 205, Placement slot; 206, Clamp; 207, Mounting ear; 208, Cavity. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure. Example

[0028] A gas pipeline connection and fixing device, such as Figures 1-4As shown, the system includes a first pipe 101 and a second pipe 102. The opposite ends of the first pipe 101 and the second pipe 102 are connected by a first flange 103 and a second flange 104. A fixing device 2 is provided on the outside of the first flange 103 and the second flange 104. The fixing device 2 includes a fixing ring 201. A groove 202 is formed between the fixing ring 201 and the first flange 103 and the second flange 104. A retaining ring 203 is provided inside the groove 202. A limiting piece 204 is provided on the outside of the retaining ring 203. Two clamps 206 are provided on the outside of the limiting piece 204. By incorporating two clamps 206 and utilizing the inner cavity 208 for restraint, the traditional flange clamp connection method is integrated with the modern bolt connection. The bolt connection, as the main supporting structure, ensures the stability of the pipeline connection and provides strong support for the entire connection. At the same time, the addition of clamps 206, without affecting the bolt connection as the main supporting structure, structurally enhances the stability and strength of the connection, playing a dual role of protection. This combination method not only improves the connection stability of gas pipelines, but also makes the installation operation more convenient due to its modular design, thereby improving work efficiency.

[0029] See Figure 1 , Figure 3 Both sides of the two clamps 206 are provided with mounting ears 207, and they are connected in a detachable manner by bolts. This makes it easier to connect the clamps 206 to the pipeline system. Connecting the mounting ears 207 with bolts ensures that the clamps 206 are stably fixed in the required position, preventing displacement or loosening, thus ensuring the stability and safety of the pipeline connection. At the same time, the combination of mounting ears 207 and bolts forms a detachable connection structure, which not only facilitates installation but also facilitates future maintenance and disassembly. When it is necessary to inspect or replace the pipeline, the bolts can be easily removed and the clamps 206 can be taken off, greatly improving the convenience of operation. This detachable structure also makes the device more flexible and can adapt to pipelines of different sizes and shapes, improving its versatility and practicality.

[0030] See Figure 3 , Figure 4The clamp 206 has an inner cavity 208 with a U-shaped cross-section to accommodate the limiting piece 204. The cavity 208 can tightly accommodate the limiting piece 204, which allows the limiting piece 204 to be securely placed within the clamp 206, preventing it from falling off or shifting. The U-shaped cross-section of the cavity 208 matches the shape of the limiting piece 204, providing good fitting and stability, further strengthening the pipe connection. At the same time, the U-shaped cavity 208 simplifies the installation process, as the limiting piece 204 can easily slide into the cavity 208 of the clamp 206, thereby improving installation efficiency. This structure also increases the contact area between the clamp 206 and the limiting piece 204, dispersing the stress points, reducing the possibility of local stress concentration, extending the service life, and enhancing the safety and reliability of the entire connection device.

[0031] See Figure 3 , Figure 4 Multiple limiting plates 204 are provided and are arranged in an equidistant ring along the central axis of the retaining ring 203, ensuring uniform force on the pipe connection. The multiple limiting plates 204 disperse the pressure at the pipe connection, avoiding the risk of damage caused by excessive force at a single point, thereby improving the stability and safety of the pipeline system. At the same time, the equidistant ring arrangement of the limiting plates 204 also helps to maintain the alignment of the pipe connection, preventing skewing or twisting caused by uneven force. This not only extends the service life of the pipeline system but also optimizes the overall performance of the pipe connection. The setting of multiple limiting plates 204 also enhances the rigidity and seismic resistance of the connection, enabling the pipeline system to maintain stable operation in complex environments. Example

[0032] See Figure 1 , Figure 2 , Figure 4 A placement groove 205 is formed between adjacent limiting plates 204 to accommodate the connecting bolts of the first flange 103 and the second flange 104. The placement groove 205 can orderly accommodate the connecting bolts of the first flange 103 and the second flange 104, so that the connecting bolts are properly placed and protected. By placing the bolts in the special groove, it can effectively prevent the bolts from loosening or being damaged due to external factors, thereby ensuring the stability of the flange connection. At the same time, the placement groove 205 also makes the entire connection structure neater and more orderly, which is convenient for future maintenance and repair. When it is necessary to inspect or adjust the flange connection, the corresponding bolts can be easily found and operated, which improves work efficiency, enhances the safety and reliability of the entire pipeline system, and reduces potential risks caused by bolt problems.

[0033] See Figure 1 , Figure 2The fixing ring 201 is fixedly connected to the first pipeline 101 and the second pipeline 102. The groove 202 engages with the retaining ring 203, ensuring the stability of the entire docking and fixing device. This connection method allows the fixing ring 201 to fit tightly against the pipeline, making it less prone to displacement. This provides a stable foundation for the subsequent connection of the flange and retaining ring 203. At the same time, the engagement of the groove 202 and the retaining ring 203 further enhances the tightness and stability of the connection. The retaining ring 203 can be tightly embedded in the groove 202, forming a strong mechanical connection. This not only improves the safety and reliability of the pipeline system but also extends the service life of the pipeline.

[0034] See Figure 1 , Figure 2 The first flange 103 and the second flange 104 are connected to the first pipeline 101 and the second pipeline 102 respectively in a plug-in structure. This connection method is simple and quick, which can significantly improve installation efficiency. The plug-in structure makes the connection between the flange and the pipeline tighter, reducing the possible gaps at the connection, thereby reducing the risk of gas or liquid leakage. At the same time, the plug-in structure also has good disassembly, which facilitates future maintenance and replacement. When it is necessary to inspect or replace a certain component, the flange can be easily separated from the pipeline, reducing maintenance costs and time. The plug-in structure also helps to reduce stress concentration and improve the overall stability and safety of the pipeline system.

[0035] The implementation principle of this utility model is as follows: First, the retaining ring 203 is sleeved on the outside of the first pipeline 101 and the second pipeline 102, and the retaining ring 201 is used to limit the position of the retaining ring 203. Then, the first flange 103, the second flange 104 and the first pipeline 101 and the second pipeline 102 are connected by heat bonding process. Next, the first flange 103 and the second flange 104 are connected by connecting bolts. Then, two clamps 206 are sleeved on the outside of the limiting piece 204, and the limiting piece 204 is limited by the inner cavity 208. The mounting ear 207 is connected and fixed by bolts to realize the traditional flange clamp connection form. This structure is conducive to combining the bolt connection form and the clamp connection form. The bolt connection is the main supporting connection structure, and the clamps 206 are used to enhance the strength of the connection structure, thereby improving the connection stability of the gas pipeline and enhancing its installation and operation convenience.

[0036] All parts not covered in this utility model are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A gas pipe butt fixing device, characterized by: The utility model provides a first pipeline (101) and second pipeline (102) are connected through first flange (103), second flange (104) to the opposite end of first pipeline (101) and second pipeline (102), and the outside of first flange (103) and second flange (104) is provided with fixing device (2), and fixing device (2) includes fixed ring (201), and the inside of fixed ring (201) is provided with snap groove (202) with first flange (103), second flange (104), and the inside of snap groove (202) is provided with snap ring (203), and the outside of snap ring (203) is provided with limiting sheet (204), and the outside of limiting sheet (204) is provided with two hoop (206).

2. A gas pipe butt fixing device according to claim 1, characterised in that: Two the both sides of hoop (206) are provided with mounting lug (207), and are detachably connected through bolt structure.

3. The gas pipe butt fixture of claim 1, wherein: The inside of hoop (206) is provided with cavity (208), and the cross section is " U ” shape structure, is used for accommodating limiting sheet (204).

4. The gas pipe butt fixture of claim 1, wherein: Limiting sheet (204) is provided with a plurality, and along the equidistance annular arrangement of the central axis of snap ring (203).

5. The gas pipe butt fixture of claim 1, wherein: The placing groove (205) is formed between adjacent limiting sheet (204), and is used for accommodating the connecting bolt of first flange (103) and second flange (104).

6. The gas pipe butt fixture of claim 1, wherein: The fixed ring (201) is fixedly connected with the first pipeline (101), the second pipeline (102), the snap groove (202) is engaged with the snap ring (203).

7. The gas pipe butt fixture of claim 1, wherein: The first flange (103), second flange (104) respectively with first pipeline (101), second pipeline (102) are inserted into the structure.

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