Connecting piece of natural gas conveying pipeline

Abstract

The utility model relates to the technical field of pipeline connecting pieces, in particular to a connecting piece of a natural gas conveying pipeline. The device comprises a first conveying pipe and a second conveying pipe, notches of the first conveying pipe and the second conveying pipe are close to each other, the end, close to the second conveying pipe, of the first conveying pipe is connected into the second conveying pipe, the end, close to the second conveying pipe, of the first conveying pipe is fixedly connected with a screw opening, and threads are arranged on the outer side wall of the screw opening; a clamping groove structure is arranged outside the connecting position of the first conveying pipe and the second conveying pipe, a wrench structure is arranged above the clamping groove structure and swings above a gear ring, and the gear ring is fixedly installed on the outer side wall of the screw opening and is formed by a plurality of wedge blocks surrounding the axis of the first conveying pipe in an annular array mode. The first conveying pipe and the second conveying pipe are placed in the groove openings of the connecting clamping grooves, it is guaranteed that the ends of the pipelines are in butt joint correctly, a stable butt joint platform is provided for the pipelines, the connecting process is simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connector technology, and more specifically, to a connector for a natural gas transmission pipeline. Background Technology

[0002] Natural gas pipelines are pipelines that transport natural gas from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also known as gas transmission pipelines. Natural gas pipelines can transport large quantities of natural gas. Natural gas pipelines are made of steel and are usually assembled by connecting individual pipes one by one. In existing natural gas pipelines, the ends of the pipelines and the flow path are often connected by flanges. During installation, the flanges of two pipelines are fastened together with bolts to achieve connection and sealing between the two pipelines. In actual use, existing natural gas pipelines have the following problems: At existing construction sites, it is often difficult to align the pipelines, which leads to a complicated construction process and a tendency to prolong the construction period. Utility Model Content

[0003] The purpose of this utility model is to provide a connector for a natural gas transmission pipeline to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a connector for a natural gas transmission pipeline is provided, comprising a first transmission pipe and a second transmission pipe, with the cut ends of the first and second transmission pipes close to each other. The end of the first transmission pipe near the second transmission pipe is connected to the interior of the second transmission pipe. A threaded opening is fixedly connected to the end of the first transmission pipe near the second transmission pipe, and the outer wall of the threaded opening is provided with threads. A groove structure is provided on the outside of the connection between the first and second transmission pipes, and a wrench structure is provided above the groove structure. The wrench structure is positioned above a toothed ring and swings. A toothed ring is fixedly installed on the outer wall of the threaded opening. The toothed ring is composed of a plurality of wedges arranged in a ring around the axis of the first transmission pipe. When the wrench structure swings, it pushes the toothed ring to rotate through the wedges, and the toothed ring drives the threaded opening to rotate, screwing the threaded opening into the interior of the second transmission pipe.

[0005] As a further improvement to this technical solution, the slot structure includes a connecting slot with an opening at the top. The first conveying pipe and the second conveying pipe are connected in the opening. The first conveying pipe rotates in the opening, and the second conveying pipe is engaged with the bottom wall of the connecting slot by a block at the bottom, so that the first conveying pipe cannot drive the second conveying pipe to rotate when it rotates.

[0006] As a further improvement to this technical solution, a stop block is snapped onto the top of the slot of the connecting slot. The stop block has a sliding groove that runs vertically through it. The wrench structure includes a rotating rod that is rotatably mounted on the stop block. The rotating rod passes through the sliding groove. A driven member is fixedly sleeved on the side wall of the rotating rod near the first conveying pipe. The driven member swings around the rotating rod. By pressing the wedge block through the rotating rod, the toothed ring is driven to rotate, and the screw is screwed into the interior of the second conveying pipe, so that the screw is connected to the second conveying pipe.

[0007] As a further improvement to this technical solution, a drive rod is rotatably mounted on the side of the driven member away from the first conveying pipe. The inner sidewall of the lower end of the drive rod is provided with a plurality of helical teeth arranged in a ring array. A locking tongue is slidably mounted on the sidewall of the rotating rod. The locking tongue extends and retracts on the rotating rod and engages between two helical teeth. The drive rod is pushed to drive the locking tongue and the rotating rod to rotate by squeezing the helical teeth. The rotating rod drives the driven member to rotate and squeezes the toothed ring, causing the toothed ring to rotate and drive the screw end to screw into the second conveying pipe.

[0008] As a further improvement to this technical solution, a reset ring is fixedly sleeved on the rotating rod, and the locking tongue is slidably disposed between the driven member and the reset ring. A torsion spring is disposed between the side of the reset ring away from the driven member and the side wall of the stop block. The torsion spring drives the rotating rod to swing through the reset ring, causing the rotating rod to drive the driven member to move closer to the toothed ring. After pushing the drive rod, the driven member is reset through the torsion spring.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] In the connector of this natural gas transmission pipeline, by placing the first and second transmission pipes into the slot of the connecting groove, the pipe ends are ensured to be correctly aligned, providing a stable docking platform for the pipeline, simplifying the connection process, and improving construction efficiency. By pushing the drive rod until the screw is fully screwed into the second transmission pipe, a sealed and firm connection is ensured between the two pipes. This step completes the pipeline fastening, ensures the long-term stability of the connection, and prevents gas leakage. Attached Figure Description

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the utility model;

[0013] Figure 3 This is an exploded view of the overall structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the wrench structure of the utility model.

[0015] The meaning of each number in the figure is:

[0016] 1. Slot structure; 11. Stop block; 12. Connecting slot;

[0017] 2. Wrench structure; 21. Follower; 22. Drive rod; 23. Return ring; 24. Locking tongue; 25. Rotating rod;

[0018] 3. First conveying pipe; 4. Second conveying pipe; 5. Gear ring; 6. Threaded joint. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Example 1

[0022] Please see Figure 1-Figure 4As shown, this embodiment provides a connector for a natural gas transmission pipeline, including a first transmission pipe 3 and a second transmission pipe 4. The cut ends of the first transmission pipe 3 and the second transmission pipe 4 are close to each other. The end of the first transmission pipe 3 closest to the second transmission pipe 4 is connected to the inside of the second transmission pipe 4, making the connection between the two pipes more precise, reducing the risk of gas leakage, simplifying the installation process, and improving construction efficiency. A threaded joint 6 is fixedly connected to the end of the first transmission pipe 3 closest to the second transmission pipe 4. The outer wall of the threaded joint 6 is provided with threads, and a tight connection between the two pipes is achieved by rotation, enhancing the sealing and reliability of the connection, and also making the disassembly and maintenance of the pipeline more convenient. A groove structure 1 is provided on the outside of the connection between the first transmission pipe 3 and the second transmission pipe 4. A wrench structure 2 is provided above the first conveying pipe 3. The slot structure 1 provides a stable fixing point, while the wrench structure 2 is used to operate and tighten the connecting parts. This design makes the pipe connection more secure and also facilitates the operation of construction personnel, improving the safety and efficiency of construction. The wrench structure 2 is set above the toothed ring 5 and swings. The toothed ring 5 is fixedly installed on the outer wall of the threaded opening 6. The toothed ring 5 is composed of several wedges arranged in a ring around the axis of the first conveying pipe 3. When the wrench structure 2 swings, it pushes the toothed ring 5 to rotate through the wedges. The toothed ring 5 drives the threaded opening 6 to rotate, screwing the threaded opening 6 into the interior of the second conveying pipe 4, ensuring a tight connection between the pipes and preventing gas leakage. At the same time, the screwing in of the thread also provides a self-locking mechanism, enhancing the stability and safety of the connection.

[0023] The slot structure 1 includes a connecting slot 12, with a groove on the top of the connecting slot 12. The first delivery pipe 3 and the second delivery pipe 4 are connected in the groove, providing a clear guide and positioning space for the connection between the pipes, ensuring correct pipe docking. The groove design helps protect the pipe ends from damage during the connection process, and also facilitates operation by construction personnel. The first delivery pipe 3 rotates in the groove, and the second delivery pipe 4 is engaged with the bottom wall of the connecting slot 12 by a square block set at the bottom, preventing the first delivery pipe 3 from driving the second delivery pipe 4 to rotate. This ensures that the second delivery pipe 4 will not be displaced during the connection process, which is crucial for maintaining the sealing of the pipeline system, effectively preventing natural gas leakage, and ensuring the safety of the transportation process.

[0024] A stop 11 is snapped onto the top of the slot of the connecting slot 12. The stop 11 has a through-groove. The wrench structure 2 includes a rotating rod 25 rotatably mounted on the stop 11. The rotating rod 25 provides a simple operation method, making pipe connection faster and more efficient. The rotating rod 25 passes through the through-groove. A driven member 21 is fixedly sleeved on the side wall of the rotating rod 25 near the first conveying pipe 3. The driven member 21 swings around the rotating rod 25, allowing it to squeeze the wedge on the toothed ring 5, thereby driving the toothed ring 5 to rotate. This mechanism not only improves... This not only ensures a tight connection but also reduces pressure on individual components by distributing force, extending the service life of the connector. The wedge is pressed by the rotating rod 25, which drives the toothed ring 5 to rotate, screwing the threaded end 6 into the interior of the second conveying pipe 4, thus connecting the threaded end 6 to the second conveying pipe 4. This threaded connection not only provides strong sealing but also allows the pipeline to have a certain amount of expansion and contraction space during thermal expansion and contraction, thereby ensuring the long-term stability and safety of the pipeline system. The screwing action ensures the firmness and sealing of the pipeline connection, improving the safety and stability of the entire natural gas transmission system.

[0025] A drive rod 22 is rotatably mounted on the side of the driven member 21 away from the first conveying pipe 3. The inner wall of the lower end of the drive rod 22 is provided with helical teeth arranged in a ring array, so that the drive rod 22 can transmit torque and speed through the principle of helical gears, thereby improving the transmission efficiency and stability of the connector. A locking tongue 24 is slidably mounted on the side wall of the rotating rod 25. The locking tongue 24 extends and retracts on the rotating rod 25 and engages between two helical teeth. The engagement of the helical teeth achieves precise force transmission. The drive rod 22 is pushed to squeeze the helical teeth through the locking tongue 24, thereby driving the locking tongue 24 and the rotating rod 25 to rotate. The rotating rod 25 drives the driven member 21 to rotate and squeezes the toothed ring 5, causing the toothed ring 5 to rotate. The rotation of the toothed ring 5 is the key step to realize the screw 6 into the second conveying pipe 4, ensuring the tightness and sealing of the pipe connection and improving the reliability and safety of the connection.

[0026] A reset ring 23 is fixedly sleeved on the rotating rod 25. The reset ring 23 helps to maintain the stability of the rotating rod 25 during operation and allows for precise swinging when needed. The locking tongue 24 is slidably disposed between the driven member 21 and the reset ring 23. The locking tongue 24 allows the wedge on the toothed ring 5 to be smoothly squeezed when the driven member 21 is pushed closer to the toothed ring 5, thus realizing the screw thread 6. A torsion spring is provided between the side of the reset ring 23 away from the driven member 21 and the side wall of the stop block 11. The torsion spring drives the rotating rod 25 to swing through the reset ring 23, causing the rotating rod 25 to drive the driven member 21 closer to the toothed ring 5. After pushing the drive rod 22, the torsion spring drives the driven member 21 to reset. Through the automatic reset function of the torsion spring, it is ensured that the connector can quickly return to the initial state after the connection is completed, preparing for the next connection. This automatic reset function simplifies the operation process, reduces manual intervention, and improves the operation efficiency and safety of the connector.

[0027] In this embodiment, the connector for the natural gas pipeline is used by placing the first delivery pipe 3 and the second delivery pipe 4 into the slot of the connecting groove 12 to ensure proper alignment of the pipe ends. This provides a stable connection platform, simplifies the connection process, and improves construction efficiency. The threaded end 6 is fixed to one end of the first delivery pipe 3, ensuring the threaded portion is exposed, ready to be screwed into the second delivery pipe 4. This provides a rotatable connection point for the pipeline, achieving a tight and sealed connection through the threaded connection. Rotating the lever 25 in the wrench structure 2 rotates the threaded end 6, driving it to screw into the second delivery pipe 4, providing the necessary torque for connection. The connection is robust because the helical teeth on the driven member 21 and the drive rod 22 work together to transmit torque, allowing the screw 6 to be screwed into the second delivery pipe 4. This mechanism improves the transmission efficiency of the connection. The self-locking characteristic of the helical teeth enhances the stability and safety of the connection. Continue to rotate the wrench structure 2 until the screw 6 is fully screwed into the second delivery pipe 4, ensuring a sealed and secure connection between the two pipes. This step completes the tightening of the pipes, ensuring the long-term stability of the connection and preventing gas leakage. The torsion spring in the wrench structure 2 will drive the driven member 21 to reset, preparing for the next connection. This simplifies the operation process, reduces manual intervention, and improves work efficiency and safety.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A connector for a natural gas transmission pipeline, comprising a first transmission pipe (3) and a second transmission pipe (4), wherein the cut ends of the first transmission pipe (3) and the second transmission pipe (4) are close to each other, and one end of the first transmission pipe (3) near the second transmission pipe (4) is connected to the interior of the second transmission pipe (4), characterized in that: The first conveying pipe (3) is fixedly connected to a screw hole (6) at one end near the second conveying pipe (4). The outer wall of the screw hole (6) is provided with threads. A groove structure (1) is provided outside the connection between the first conveying pipe (3) and the second conveying pipe (4). A wrench structure (2) is provided above the groove structure (1). The wrench structure (2) is set above the toothed ring (5) and swings. A toothed ring (5) is fixedly installed on the outer wall of the screw hole (6). The toothed ring (5) is composed of a ring array of several wedges around the axis of the first conveying pipe (3). When the wrench structure (2) swings, it pushes the toothed ring (5) to rotate through the wedges. The toothed ring (5) drives the screw hole (6) to rotate and screws the screw hole (6) into the interior of the second conveying pipe (4).

2. The connector for a natural gas transmission pipeline according to claim 1, characterized in that: The slot structure (1) includes a connecting slot (12). A slot is provided above the connecting slot (12). The first conveying pipe (3) and the second conveying pipe (4) are connected in the slot. The first conveying pipe (3) rotates in the slot. The second conveying pipe (4) is engaged with the bottom wall of the connecting slot (12) by a block provided at the bottom, so that the first conveying pipe (3) cannot drive the second conveying pipe (4) to rotate when it rotates.

3. The connector for a natural gas transmission pipeline according to claim 2, characterized in that: A stop block (11) is snapped onto the top of the slot of the connecting slot (12). The stop block (11) has a sliding groove that runs vertically through it. The wrench structure (2) includes a rotating rod (25) that is rotatably mounted on the stop block (11). The rotating rod (25) runs through the sliding groove. A follower (21) is fixedly sleeved on the side wall of the rotating rod (25) near the first conveying pipe (3). The follower (21) swings around the rotating rod (25). The rotating rod (25) squeezes the wedge block, causing the toothed ring (5) to rotate and screw the screw (6) into the interior of the second conveying pipe (4), so that the screw (6) is connected to the second conveying pipe (4).

4. The connector for a natural gas transmission pipeline according to claim 3, characterized in that: A drive rod (22) is rotatably mounted on the side of the driven member (21) away from the first conveying pipe (3). The inner side wall of the lower end of the drive rod (22) is provided with a plurality of helical teeth arranged in a ring array. A locking tongue (24) is slidably mounted on the side wall of the rotating rod (25). The locking tongue (24) extends and retracts on the rotating rod (25) and engages between two helical teeth. The drive rod (22) is pushed to drive the locking tongue (24) and the rotating rod (25) to rotate by squeezing the helical teeth. The rotating rod (25) drives the driven member (21) to rotate and squeezes the toothed ring (5), causing the toothed ring (5) to rotate and drive the screw (6) to screw into the second conveying pipe (4).

5. The connector for a natural gas transmission pipeline according to claim 4, characterized in that: A reset ring (23) is fixedly sleeved on the rotating rod (25). The locking tongue (24) is slidably disposed between the driven member (21) and the reset ring (23). A torsion spring is disposed between the side of the reset ring (23) away from the driven member (21) and the side wall of the stop block (11). The torsion spring drives the rotating rod (25) to swing through the reset ring (23), so that the rotating rod (25) drives the driven member (21) to move closer to the toothed ring (5). After pushing the drive rod (22), the driven member (21) is reset through the torsion spring.

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