Stop valve joint structure for Christmas tree

Abstract

The utility model relates to the technical field of joint structures, in particular to a stop valve joint structure for a Christmas tree, which comprises a connecting pipe, a conveying pipe is arranged at one end of the connecting pipe, and a connecting plate is arranged at one end of the conveying pipe. Fixing pipes are arranged at the two ends of the rubber pipe, connecting plates are arranged on the surfaces of the fixing pipes, and buffer springs are arranged on the surfaces of the connecting plates; the pipeline stop valve has the beneficial effects that a pipeline can be connected with the stop valve through the connecting pipes, when liquid enters the connector through the pipeline, the liquid can enter the rubber pipe through the conveying pipe, when the liquid enters the rubber pipe, the liquid can be buffered under the synergistic effect of the connecting plates and the buffer springs, and the two connecting plates are located at the two ends of the rubber pipe correspondingly; when liquid generates large impact, the buffer spring and the rubber pipe can buffer the liquid in the buffer spring and the rubber pipe, the impact force of the liquid is prevented from directly acting on the stop valve and damaging the stop valve, and therefore the damping effect of the stop valve connector structure for the Christmas tree on the stop valve is achieved.

Description

Technical Field

[0001] This utility model relates to the field of joint structures, specifically a shut-off valve joint structure for an oil well tree. Background Technology

[0002] As a core component controlling fluid flow, the shut-off valve in the wellhead has a direct and significant impact on the management efficiency and safety level of oil extraction operations. Through precise opening and closing operations, the shut-off valve achieves reliable control of the oil well production channel, ensuring rapid isolation of wellbore pressure during maintenance, testing, or emergency response, preventing accidental leaks, and protecting personnel and equipment safety. The quality of its sealing performance directly affects the preservation of oil and gas resources and environmental protection, reducing economic losses and environmental pollution caused by leaks. In short, the shut-off valve is crucial for improving the overall economic efficiency of extraction operations and achieving a sustainable oil production model.

[0003] In existing technologies, traditional gate valve joints generally consist of flanges, gaskets, bolts, and nuts. The flange is the main part of the joint, usually round or square, and plays a role in balancing the pipeline and transmitting pressure during pipeline connection. The gasket is installed between the flanges to seal and prevent pipeline leakage. The bolts and nuts are the components that fix the two flanges together, and can be selected according to the pipeline specifications and pressure to ensure a firm and sealed connection, thereby ensuring the stable operation of the joint.

[0004] However, when traditional gate valve connectors are used, their lack of a buffer structure means that when subjected to a large impact, the entire gate valve may shake, potentially damaging its internal structure. To address this issue, this invention proposes a gate valve connector structure for oil wellheads to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a gate valve connector structure for oil well trees to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stop valve connector structure for a tree trunk, the stop valve connector structure for a tree trunk includes: a connecting pipe, a delivery pipe provided at one end of the connecting pipe, and a connecting plate provided at the other end of the delivery pipe;

[0007] A rubber tube with fixing tubes at both ends, a connecting plate on the surface of the fixing tube, and a buffer spring on the surface of the connecting plate.

[0008] Preferably, a nut is screwed onto the outside of the connecting pipe, one end of the connecting pipe is fixedly connected to one end of the conveying pipe, and a fixing pipe is provided at the other end of the conveying pipe.

[0009] Preferably, the connecting plate is in the shape of a circular plate, and multiple limiting holes are provided on the surface of the connecting plate. Limiting rods are provided in the limiting holes. There are two sets of connecting plates, and the connecting plates are connected by limiting rods. The two ends of the limiting rods are provided with locking plates. The connecting plates can be displaced on the surface of the limiting rods through the limiting holes. The surface of the connecting plate is provided with locking holes.

[0010] Preferably, the rubber tube is ellipsoidal in shape, located between two sets of connecting plates, and fixed tubes are fixedly connected to both ends of the rubber tube.

[0011] Preferably, the surface of the fixing tube is provided with an annular groove, and a connecting plate is also inserted into the annular groove. A sealing ring is provided at one end of the fixing tube.

[0012] Preferably, the buffer spring is provided with a fixing frame at both ends, a fixing rod is provided inside the fixing frame, the buffer spring end is locked between the fixing frame and the fixing rod, and the bottom surface of the fixing frame is fixed to the surface of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The gate valve connector structure for oil wells proposed in this utility model allows the pipeline to be connected to the gate valve via a connecting pipe. When liquid enters the connector through the pipeline, it will enter the rubber tube through the delivery pipe. When the liquid enters the rubber tube, it will be buffered by the combined action of the connecting plate and the buffer spring. The two sets of connecting plates are located at both ends of the rubber tube. When the liquid generates a large impact, the buffer spring and the rubber tube will buffer the liquid inside, preventing the liquid's impact force from directly acting on the gate valve and causing damage to the gate valve. This avoids the situation where the gate valve is damaged when the impact force of the liquid inside the pipeline is large. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the rubber tube of this utility model.

[0019] In the diagram: 1. Connecting pipe; 2. Conveying pipe; 3. Connecting plate; 4. Rubber tube; 5. Fixing pipe; 6. Buffer spring; 7. Limiting rod; 8. Clamping plate; 9. Annular groove; 10. Sealing ring; 11. Nut; 12. Limiting hole; 13. Clamping hole; 14. Fixing frame; 15. Fixing rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a stop valve connector structure for a tree trunk, the stop valve connector structure for a tree trunk includes: a connecting pipe 1, a conveying pipe 2 provided at one end of the connecting pipe 1, and a connecting plate 3 provided at one end of the conveying pipe 2.

[0022] Rubber tube 4, fixed tubes 5 are provided at both ends of rubber tube 4, connecting plate 3 is provided on the surface of fixed tube 5, and buffer spring 6 is provided on the surface of connecting plate 3;

[0023] In use, the pipe can be connected to the shut-off valve through the connecting pipe 1. When the liquid enters the joint through the pipe, it will enter the rubber tube 4 through the delivery pipe 2. When the liquid enters the rubber tube 4, it will be buffered by the combined action of the connecting plate 3 and the buffer spring 6. The two sets of connecting plates 3 are located at both ends of the rubber tube 4. When the liquid generates a large impact, the buffer spring 6 and the rubber tube 4 will buffer the liquid inside, preventing the liquid's impact force from directly acting on the shut-off valve and causing damage to the shut-off valve. This achieves the shock absorption effect of the shut-off valve joint structure for the oil well tree.

[0024] Example 2: Based on Example 1, in order to prevent the shut-off valve from being damaged when the liquid in the pipeline has a large impact force, a buffer spring 6 is provided. The buffer spring 6 is provided with a fixing frame 14 at both ends, and a fixing rod 15 is provided inside the fixing frame 14. The end of the buffer spring 6 is stuck between the fixing frame 14 and the fixing rod 15. The bottom surface of the fixing frame 14 is fixed to the surface of the connecting plate 3.

[0025] The rubber tube 4 is ellipsoidal in shape and is located between two sets of connecting plates 3. Fixed tubes 5 are fixedly connected to both ends of the rubber tube 4.

[0026] An annular groove 9 is provided on the surface of the fixed tube 5, and a connecting plate 3 is also inserted into the annular groove 9. A sealing ring 10 is provided at one end of the fixed tube 5.

[0027] To prevent damage to the shut-off valve caused by liquid impact, the rubber tube 4 has a certain degree of elasticity when the liquid passes through the joint, and a buffer spring 6 is installed between the connecting plates 3. The two sets of components work together to achieve the effect of buffering the liquid.

[0028] Example 3: Based on Example 2, in order to prevent the buffer spring 6 from deforming after working for a long time, a connecting plate 3 is provided. The connecting plate 3 is a circular plate structure. Multiple limiting holes 12 are opened on the surface of the connecting plate 3. Limiting rods 7 are provided in the limiting holes 12. There are two sets of connecting plates 3. The connecting plates 3 are connected by the limiting rods 7. The two ends of the limiting rods 7 are provided with locking plates 8. The connecting plates 3 can be displaced on the surface of the limiting rods 7 through the limiting holes 12. The surface of the connecting plate 3 is provided with locking holes 13.

[0029] A nut 11 is screwed onto the outside of the connecting pipe 1. One end of the connecting pipe 1 is fixedly connected to one end of the conveying pipe 2. A fixing pipe 5 is provided at the other end of the conveying pipe 2.

[0030] To prevent deformation of the transmission spring 6 caused by misalignment of the two ends of the buffer spring due to deformation of the rubber tube 4, a limiting rod 7 is connected between the two sets of connecting plates 3. The limiting rod 7 ensures that the positions of the two sets of connecting plates 3 will not be misaligned.

[0031] In actual use, the pipe can be connected to the shut-off valve through the connecting pipe 1. When the liquid enters the joint through the pipe, it will enter the rubber tube 4 through the delivery pipe 2. When the liquid enters the rubber tube 4, it will be buffered by the combined action of the connecting plate 3 and the buffer spring 6. The two sets of connecting plates 3 are located at both ends of the rubber tube 4. When the liquid generates a large impact, the buffer spring 6 and the rubber tube 4 will buffer the liquid inside, preventing the liquid's impact force from directly acting on the shut-off valve and causing damage to the shut-off valve. This achieves the shock absorption effect of the shut-off valve joint structure for the oil well tree.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shuttling valve sub for use with a Christmas tree, characterized by: The structure of the shut-off valve connector for the oil well tree includes: a connecting pipe (1), a delivery pipe (2) at one end of the connecting pipe (1), and a connecting plate (3) at one end of the delivery pipe (2). A rubber tube (4) is provided with fixing tubes (5) at both ends of the rubber tube (4), a connecting plate (3) is provided on the surface of the fixing tube (5), and a buffer spring (6) is provided on the surface of the connecting plate (3). A nut (11) is screwed onto the outside of the connecting pipe (1). One end of the connecting pipe (1) is fixedly connected to one end of the conveying pipe (2). A fixing pipe (5) is provided at the other end of the conveying pipe (2). The rubber tube (4) is ellipsoidal in shape and is located between two sets of connecting plates (3). Fixed tubes (5) are fixedly connected to both ends of the rubber tube (4).

2. The shuttle valve sub for Christmas trees of claim 1, wherein: The connecting plate (3) is a circular plate structure. Multiple limiting holes (12) are provided on the surface of the connecting plate (3). Limiting rods (7) are provided in the limiting holes (12). There are two sets of connecting plates (3). The connecting plates (3) are connected by limiting rods (7). The limiting rods (7) are provided with clamping plates (8) at both ends. The connecting plate (3) can be displaced on the surface of the limiting rods (7) through the limiting holes (12). The connecting plate (3) is provided with locking holes (13).

3. The shuttling valve sub for Christmas trees of claim 1, wherein: The surface of the fixed tube (5) is provided with an annular groove (9), and a connecting plate (3) is also inserted into the annular groove (9). A sealing ring (10) is provided at one end of the fixed tube (5).

4. The shuttling valve sub for Christmas trees of claim 1, wherein: The buffer spring (6) has fixed frames (14) at both ends, and fixed rods (15) are provided inside the fixed frames (14). The buffer spring (6) is stuck between the fixed frames (14) and the fixed rods (15) at its port. The bottom surface of the fixed frames (14) is fixed to the surface of the connecting plate (3).

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