Sealing structure of petroleum and natural gas conveying pipeline

Abstract

The utility model relates to the technical field of sealing of petroleum and natural gas conveying pipelines, in particular to a sealing structure of a petroleum and natural gas conveying pipeline. The device comprises a connecting assembly, the connecting assembly comprises two connecting sleeves, fixing rings are fixedly arranged at the ends, located in a connecting pipe, of the connecting sleeves in a vertically symmetrical mode, a connecting rope is arranged on one sides of the two fixing rings, a fixing rope is fixedly connected to the middle of the two connecting ropes, and a vertical rod is arranged in the middle of the fixing rope. The vertical rod is driven to move upwards through the first sliding rod, then the first sliding rod is rotated to drive the two connecting sleeves to slide towards the interior of the connecting pipe, then a user enables the two ends of the connecting pipe to penetrate into the two corresponding pipelines respectively and releases the first sliding rod, and meanwhile the two connecting sleeves slide towards the exterior of the connecting pipe and bounce off; the device seals the pipeline and wraps the pipeline at the same time, natural gas leakage caused by insufficient firmness of sealing is prevented, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for oil and gas transmission pipelines, and more specifically, to a sealing structure for oil and gas transmission pipelines. Background Technology

[0002] Oil and natural gas are important energy resources. After extraction, most oil and natural gas are transported through pipelines. Due to the long transportation distances, multiple pipeline segments need to be connected. Existing pipeline connections use gaskets, but this connection structure is relatively simple. The seal between pipelines is achieved by squeezing the gaskets, resulting in poor sealing. Oil and natural gas are toxic, and leaks not only cause waste but also pose a danger and affect the health of workers. Furthermore, the gaskets can only seal pipelines of the same diameter. When connecting pipelines of different diameters, the gaskets cannot provide a seal. Therefore, we propose a sealing structure for oil and natural gas transportation pipelines. Utility Model Content

[0003] The purpose of this invention is to provide a sealing structure for oil and gas transmission pipelines to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a sealing structure for an oil and gas transmission pipeline, including a connecting pipe. A connecting assembly is provided inside the connecting pipe, and the connecting assembly includes two connecting sleeves. The two connecting sleeves are slidably disposed at both ends of the connecting pipe, with one end of each connecting sleeve located inside the connecting pipe. The connecting sleeves are conical and elastic. A fixing ring is symmetrically fixed at the upper and lower ends of the connecting sleeve located inside the connecting pipe. A connecting rope is provided on one side of each of the two fixing rings, with both ends of the connecting rope fixedly connected to the two fixing rings. A fixing rope is fixedly connected in the middle of the two connecting ropes, and a vertical rod is provided in the middle of the fixing rope. The fixing rope slidably passes through the middle of the vertical rod. A sliding rod is fixedly provided on the upper side of the vertical rod, with one end of the sliding rod located on the upper side of the connecting pipe.

[0005] As a further improvement to this technical solution, a fixing block is fixedly installed on the upper side of the connecting pipe, the first slide rod is slidably inserted in the middle of the fixing block, and protrusions are symmetrically fixedly installed on one side of the first slide rod. The upper side of the fixing block is provided with a groove that matches the two protrusions.

[0006] As a further improvement to this technical solution, sealing components are symmetrically arranged on the outer side of the connecting pipe. The sealing components include sealing sleeves, which are fixedly arranged on the outer side of the connecting pipe. A pad is fixedly arranged on the side of the sealing sleeve near the end of the connecting pipe.

[0007] As a further improvement to this technical solution, an elastic rope is slidably arranged inside the pad block. One end of the elastic rope is located on the outside of the pad block, and a pull ring is inserted through the end of the elastic rope on the outside of the pad block. A collar is provided on the lower side of the pull ring, and the collar is slidably arranged on one end of the elastic rope. A screw is rotatably inserted through one side of the collar.

[0008] As a further improvement to this technical solution, a puncture assembly is symmetrically arranged on one side of the sealing sleeve. The puncture assembly includes a shell, which is fixedly connected to the sealing sleeve. A support plate is slidably arranged inside the shell. Multiple needles are fixedly arranged on the side of the support plate near the sealing sleeve. Multiple slots matching the needles are opened on one side of the sealing sleeve.

[0009] As a further improvement to this technical solution, a second sliding rod is fixedly installed on the side of the support plate away from the needle. One end of the second sliding rod is located on the outside of the outer shell. A compression spring is fixedly installed between the second sliding rod and the outer shell. A glue storage bag is fixedly installed inside the sealing sleeve. One side of the glue storage bag is in contact with the inner wall of the sealing sleeve. The inside of the glue storage bag is filled with sealant.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] In this sealing structure for oil and gas pipelines, the user first pulls the No. 1 sliding rod upwards, then rotates it to cause the two connecting sleeves to slide into the connecting pipe. The user then inserts both ends of the connecting pipe into the corresponding two pipes and releases the No. 1 sliding rod. Simultaneously, the two connecting sleeves slide outwards and spring open. The user then places the two sealing sleeves over the outside of the two pipes and pulls the pull ring upwards to tighten the sealing sleeves. The user then tightens the screw on one side of the ring to secure the elastic rope. Finally, the user presses down on the two No. 2 sliding rods, causing multiple needles to puncture the rubber storage bag. The sealant inside the bag overflows and seals the pipeline. This device can seal pipelines of various diameters and simultaneously wraps the pipeline, preventing gas leakage due to insufficient sealing and improving the device's practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the connecting pipe structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the sealing component structure of the utility model.

[0015] The meanings of the labels in the diagram are as follows:

[0016] 1. Connecting pipe; 2. Connecting assembly; 21. Connecting sleeve; 22. Fixing ring; 23. Connecting rope; 24. Fixing rope; 25. Vertical rod; 26. No. 1 sliding rod; 27. Fixing block; 28. Protrusion;

[0017] 3. Sealing assembly; 31. Sealing sleeve; 32. Pad block; 33. Elastic rope; 34. Pull ring; 35. Collar ring; 36. Puncture assembly; 361. Outer shell; 362. Support plate; 363. Puncture needle; 364. Second slide bar; 365. Compression spring; 37. Glue storage bag. Detailed Implementation

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] 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.

[0020] Example 1

[0021] Please see Figures 1-2As shown, this embodiment provides a sealing structure for an oil and gas transmission pipeline, including a connecting pipe 1. A connecting assembly 2 is disposed inside the connecting pipe 1. The connecting assembly 2 includes two connecting sleeves 21, which are slidably disposed at both ends of the connecting pipe 1. One end of each connecting sleeve 21 is disposed inside the connecting pipe 1. The connecting sleeves 21 are conical and elastic. A fixing ring 22 is symmetrically fixedly disposed at the upper and lower ends of the connecting sleeve 21 located inside the connecting pipe 1. A connecting rope 23 is disposed on one side of each fixing ring 22, with both ends of the connecting rope 23 fixedly connected to the two fixing rings 22. A fixing rope 24 is fixedly connected between the two connecting ropes 23. A vertical rod 25 is disposed in the middle of the fixing rope 24, and the fixing rope 24 slidably passes through the middle of the vertical rod 25. A first sliding rod 26 is fixedly disposed on the upper side of the vertical rod 25, with one end of the first sliding rod 26 disposed on the upper side of the connecting pipe 1. A fixing block 27 is fixedly installed on the upper side of the connecting pipe 1. A first sliding rod 26 is slidably inserted through the middle of the fixing block 27. A protrusion 28 is symmetrically fixed on one side of the first sliding rod 26. The upper side of the fixing block 27 has a groove that matches the two protrusions 28. When using the device, the user first pulls the first sliding rod 26 upward and rotates the first sliding rod 26. At the same time, the first sliding rod 26 drives the vertical rod 25 to wrap the fixing rope 24 around the outside of the vertical rod 25, and drives the fixing rope 24 to pull the two connecting sleeves 21 into the inside of the connecting pipe 1. Then the user places the two ends of the connecting pipe 1 into the inside of the natural gas transmission pipeline respectively. Then the user releases the first sliding rod 26. At the same time, the connecting sleeve 21 slides out of the connecting pipe 1 and springs open in all directions until one side of the connecting sleeve 21 is in contact with the inner wall of the pipeline. Then the user inserts the two fixing blocks 27 into the grooves on the upper side of the protrusions 28 respectively.

[0022] Please see Figures 1-3As shown, sealing components 3 are symmetrically arranged on the outer side of the connecting pipe 1. Each sealing component 3 includes a sealing sleeve 31, which is fixedly installed on the outer side of the connecting pipe 1. A pad 32 is fixedly installed on the side of the sealing sleeve 31 near the end of the connecting pipe 1. An elastic rope 33 is slidably arranged inside the pad 32. One end of the elastic rope 33 is located on the outer side of the pad 32. A pull ring 34 is inserted through the end of the elastic rope 33 located on the outer side of the pad 32. A collar 35 is provided below the pull ring 34, which is slidably arranged on one end of the elastic rope 33. A screw is rotatably inserted through one side of the collar 35. The user places the two sealing sleeves 31 on the corresponding pipe outer sides, then pulls the pull ring 34 upwards to tighten the sealing sleeves 31. The user then tightens the screw on one side of the collar 35 to secure the elastic rope 33. A piercing component 36 is symmetrically arranged on one side of the sealing sleeve 31. The piercing component 36 includes a housing 361. The outer shell 361 is fixedly connected to the sealing sleeve 31. A support plate 362 is slidably arranged inside the outer shell 361. Multiple needles 363 are fixedly arranged on the side of the support plate 362 near the sealing sleeve 31. Multiple slots matching the needles 363 are opened on one side of the sealing sleeve 31. A second slide rod 364 is fixedly arranged on the side of the support plate 362 away from the needles 363. One end of the second slide rod 364 is located on the outside of the outer shell 361. A compression spring 365 is fixedly arranged between the second slide rod 364 and the outer shell 361. A glue storage bag 37 is fixedly arranged inside the sealing sleeve 31. One side of the glue storage bag 37 is in contact with the inner wall of the sealing sleeve 31. The glue storage bag 37 is filled with sealant. After the sealing sleeve 31 is tightened, the user presses the two second slide rods 364 to drive the multiple needles 363 to puncture the glue storage bag 37. Then the sealant inside the glue storage bag 37 overflows and seals the pipe and the inside of the sealing sleeve 31.

[0023] In practical use, the sealing structure for the oil and gas pipeline in this embodiment involves the user first pulling the first sliding rod 26 upwards, then rotating the first sliding rod 26 to drive the two connecting sleeves 21 to slide into the connecting pipe 1. The user then inserts both ends of the connecting pipe 1 into the corresponding two pipes and releases the first sliding rod 26. Simultaneously, the two connecting sleeves 21 slide outwards from the connecting pipe 1 and spring open. The user then places the two sealing sleeves 31 on the outside of the two pipes and pulls the pull ring 34 upwards to tighten the sealing sleeves 31. The user then tightens the screw on one side of the collar 35 to secure the elastic rope 33. Finally, the user presses down on the two second sliding rods 364, causing multiple piercing needles 363 to puncture the rubber storage bag 37. The sealant inside the rubber storage bag 37 overflows and seals the pipeline. This device can seal pipelines of various diameters and simultaneously wraps the pipeline, preventing gas leakage due to insufficient sealing and improving the device's practicality.

[0024] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for an oil and gas transmission pipeline, comprising a connecting pipe (1), wherein a connecting assembly (2) is disposed inside the connecting pipe (1), characterized in that: The connecting assembly (2) includes two connecting sleeves (21), which are slidably disposed at both ends of the connecting tube (1). One end of each connecting sleeve (21) is disposed inside the connecting tube (1). The connecting sleeve (21) is conical and elastic. A fixing ring (22) is symmetrically fixed at one end of each connecting sleeve (21) inside the connecting tube (1). A [missing information - likely a typo, should be inserted here] is provided on one side of each fixing ring (22). A connecting rope (23) is provided, with its two ends fixedly connected to two fixed rings (22) respectively. A fixed rope (24) is fixedly connected between the two connecting ropes (23). A vertical rod (25) is provided in the middle of the fixed rope (24). The fixed rope (24) slides through the middle of the vertical rod (25). A sliding rod (26) is fixedly provided on the upper side of the vertical rod (25). One end of the sliding rod (26) is provided on the upper side of the connecting tube (1).

2. The sealing structure for oil and gas transmission pipelines according to claim 1, characterized in that: A fixing block (27) is fixedly installed on the upper side of the connecting pipe (1). The first slide rod (26) slides through the middle of the fixing block (27). A protrusion (28) is fixedly installed symmetrically on one side of the first slide rod (26). A groove matching the two protrusions (28) is opened on the upper side of the fixing block (27).

3. The sealing structure for oil and gas transmission pipelines according to claim 2, characterized in that: A sealing assembly (3) is symmetrically arranged on the left and right sides of the connecting pipe (1). The sealing assembly (3) includes a sealing sleeve (31). The sealing sleeve (31) is fixedly arranged on the outside of the connecting pipe (1). A pad (32) is fixedly arranged on the side of the sealing sleeve (31) near the end of the connecting pipe (1).

4. The sealing structure for oil and gas transmission pipelines according to claim 3, characterized in that: An elastic rope (33) is slidably disposed inside the pad (32). One end of the elastic rope (33) is disposed on the outside of the pad (32). A pull ring (34) is inserted through the end of the elastic rope (33) located on the outside of the pad (32). A collar (35) is disposed on the lower side of the pull ring (34). The collar (35) is slidably disposed on one end of the elastic rope (33). A screw is rotatably inserted through one side of the collar (35).

5. The sealing structure for oil and gas transmission pipelines according to claim 3, characterized in that: A puncture assembly (36) is symmetrically arranged on one side of the sealing sleeve (31). The puncture assembly (36) includes a shell (361) which is fixedly connected to the sealing sleeve (31). A support plate (362) is slidably arranged inside the shell (361). A plurality of needles (363) are fixedly arranged on the side of the support plate (362) near the sealing sleeve (31). A plurality of slots matching the needles (363) are opened on one side of the sealing sleeve (31).

6. The sealing structure for oil and gas transmission pipelines according to claim 5, characterized in that: A second slide rod (364) is fixedly installed on the side of the support plate (362) away from the needle (363). One end of the second slide rod (364) is located on the outside of the outer shell (361). A compression spring (365) is fixedly installed between the second slide rod (364) and the outer shell (361). A glue storage bag (37) is fixedly installed inside the sealing sleeve (31). One side of the glue storage bag (37) is in contact with the inner wall of the sealing sleeve (31). The glue storage bag (37) is filled with sealant.

Images