A connecting structure for oil extraction and transportation pipeline

Abstract

The utility model discloses a connection structure for an oil production and transportation pipeline, which belongs to the technical field of pipeline connection. The utility model comprises a pipe body, a connection pipe and an anti-loosening component. The connection pipe is sleeved between two pipe bodies. Both ends of the connection pipe are provided with external threaded pipes, which are threadedly connected to the inner peripheral wall of the pipe body. An anti-loosening groove is provided on the outer wall of the pipe body. The anti-loosening component comprises a bidirectional screw, a slider, a connecting rod, an anti-loosening block and a driving member. The bidirectional screw is rotatably installed in a cavity. There are two sliders, which are respectively sleeved on the two ends of the bidirectional screw and threadedly connected to the bidirectional screw. The connecting rod is hinged between the slider and the anti-loosening block, and the anti-loosening block slides through the anti-loosening groove. By arranging the anti-loosening groove and the anti-loosening component, the pipe body can be anti-loosening locked to prevent the threads from loosening due to vibration.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and in particular relates to a connection structure for an oil production and transportation pipeline. Background Art

[0002] Oil, one of the main objects of geological exploration, is a viscous, dark brown liquid. After oil is extracted, it must be transported to the corresponding processing department to be better utilized. Among them, the oil pipeline for transporting oil is an indispensable equipment. During the installation process of the oil pipeline, the pipeline needs to be connected.

[0003] The existing Chinese patent with announcement number CN211693959U discloses a connection structure for an oil production and transportation pipeline, including a first connecting pipe, a stirring chamber, a second connecting pipe, a stirring motor, a thermal insulation layer, a heat insulating layer and an anti-corrosion layer. The lower end of the first connecting pipe is connected to the second connecting pipe, and the second connecting pipe is connected to the first connecting pipe through a flange joint. The inner side of the flange joint is provided with a channel, the outer side of the channel is provided with an external thread, and the inner side of the channel is provided with an internal thread. One side of the second connecting pipe is provided with a first interface, and the other side of the second connecting pipe is provided with a second interface. The stirring chamber is provided between the first interface and the second interface. The inner side of the stirring chamber is provided with the stirring motor, a transmission shaft and a stirring blade arranged from top to bottom in sequence, and the stirring motor, the transmission shaft and the stirring blade are on the same vertical line. A fixing seat is provided at the lower end of the stirring blade, the inner side of the stirring chamber is provided with the thermal insulation layer, one side of the thermal insulation layer is provided with the heat insulating layer, and one side of the heat insulating layer is provided with the anti-corrosion layer.

[0004] With respect to the above-mentioned related technologies, the inventors have found that there are at least the following problems in the technologies: when connecting pipes, the above-mentioned technologies only use threads for connection. During long-term use, the pipes will inevitably be vibrated, and the threads are easily affected by the vibration and loosen, resulting in a decrease in the sealing of the pipe connection. Utility Model Content

[0005] The purpose of the utility model is to provide a connection structure for oil production and transportation pipelines to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure for an oil production and transportation pipeline, comprising a pipe body, a connecting pipe and an anti-loosening component, wherein the connecting pipe is sleeved between two pipe bodies, both ends of the connecting pipe are provided with external threaded pipes, the external threaded pipes are threadedly connected to the inner peripheral wall of the pipe body, a cavity is opened on one side of the connecting pipe, and the anti-loosening component is arranged in the cavity;

[0007] An anti-loosening groove is provided on the outer wall of the tube body, and the anti-loosening assembly includes a bidirectional screw, a slider, a connecting rod, an anti-loosening block and a driving member. The bidirectional screw is rotatably installed in the cavity, and there are two sliders. The two sliders are respectively sleeved on the two ends of the bidirectional screw and are threadedly connected with the bidirectional screw. The connecting rod is hinged between the slider and the anti-loosening block, and the anti-loosening block slides through the anti-loosening groove. The driving member is installed in the middle of the bidirectional screw.

[0008] As a preferred implementation, a sealing ring is abutted against one end of the tube body close to the connecting tube.

[0009] As a preferred embodiment, the driving member includes a knob, a worm and a worm wheel, the knob is fixedly connected to the upper end of the worm, the worm is rotatably installed in the cavity, and the worm wheel is fixedly connected to the middle of the bidirectional screw and meshes with the worm.

[0010] As a preferred implementation, a groove is provided on the outer peripheral wall of the connecting pipe, and the knob is embedded in the groove.

[0011] As a preferred implementation, a sliding groove is provided on the inner wall of the cavity, and the sliding block slides in the sliding groove.

[0012] As a preferred implementation, both sides of the cavity are fixedly connected with limit rods, and the anti-loosening block is slidably connected to the limit rods.

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

[0014] The oil production and transportation pipeline connection structure is provided with an anti-loosening groove and an anti-loosening assembly. When the pipe body is connected, the connecting pipe is sleeved between the two pipe bodies, and the connecting pipe is rotated so that the external threaded pipe is gradually connected with the pipe body thread. When the anti-loosening groove is aligned with the anti-loosening block, the driving member can be rotated to control the rotation of the bidirectional screw, so that the bidirectional screw drives the two sliders to move away from each other, so that the slider drives the anti-loosening block to be inserted into the anti-loosening groove through the connecting rod, and the pipe body is locked, so as to prevent the threads from loosening due to vibration.

[0015] The oil production and transportation pipeline connection structure can improve the sealing performance between the pipe body and the externally threaded pipe by arranging a sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified view of the structure at center;

[0019] Figure 4 For this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 1. tube body; 11. anti-loosening groove; 12. sealing ring; 2. connecting tube; 21. external threaded tube; 22. groove; 23. slide groove; 3. anti-loosening assembly; 31. bidirectional screw; 32. slider; 33. connecting rod; 34. anti-loosening block; 35. driving part; 351. knob; 352. worm; 353. worm wheel; 36. limit rod. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] See also Figure 1-4 The utility model provides a connection structure for an oil production and transportation pipeline, comprising a pipe body 1, a connecting pipe 2 and an anti-loosening component 3. The connecting pipe 2 is sleeved between two pipe bodies 1. Both ends of the connecting pipe 2 are provided with external threaded pipes 21, and the external threaded pipes 21 are threadedly connected to the inner circumferential wall of the pipe body 1; one end of the pipe body 1 close to the connecting pipe 2 is abutted with a sealing ring 12. By providing the sealing ring 12, the sealing performance between the pipe body 1 and the external threaded pipe 21 can be improved.

[0024] Reference Figure 2 , Figure 3 and Figure 4The outer wall of the tube body 1 is provided with an anti-loosening groove 11, a cavity is provided on one side of the connecting tube 2, and the anti-loosening assembly 3 is arranged in the cavity. The anti-loosening assembly 3 includes a bidirectional screw 31, a slider 32, a connecting rod 33, an anti-loosening block 34 and a driving member 35. The bidirectional screw 31 is rotatably installed in the cavity. There are two sliders 32. The two sliders 32 are respectively sleeved at both ends of the bidirectional screw 31 and are threadedly connected with the bidirectional screw 31. The connecting rod 33 is hinged between the slider 32 and the anti-loosening block 34. The anti-loosening block 34 slides through the anti-loosening groove 11. The driving member 35 is installed on the bidirectional screw In the middle part of 31, by setting the anti-loosening groove 11 and the anti-loosening component 3, when connecting the tube body 1, the connecting tube 2 is put between the two tube bodies 1, and the connecting tube 2 is rotated to make the external threaded tube 21 gradually connected with the tube body 1 by thread. When the anti-loosening groove 11 is aligned with the anti-loosening block 34, the rotatable driving member 35 controls the rotation of the bidirectional screw 31, so that the bidirectional screw 31 drives the two sliders 32 to move away from each other, and the slider 32 drives the anti-loosening block 34 through the connecting rod 33 to insert into the anti-loosening groove 11, so as to lock the tube body 1, and prevent the threads from loosening due to vibration.

[0025] Specifically, the driving member 35 includes a knob 351, a worm 352 and a worm wheel 353. The knob 351 is fixedly connected to the upper end of the worm 352, and the worm 352 is rotatably installed in the cavity. The worm wheel 353 is fixedly connected to the middle part of the bidirectional screw 31 and meshes with the worm 352. By setting the driving member 35, the knob 351 can be rotated so that the knob 351 drives the worm 352 to rotate, and the worm 352 drives the worm wheel 353 to rotate, and the worm wheel 353 drives the bidirectional screw 31 to rotate; a groove 22 is opened on the outer peripheral wall of the connecting tube 2, and the knob 351 is embedded in the groove 22. By setting the groove 22, the knob 351 can be stored and protected.

[0026] Furthermore, a slide groove 23 is opened on the inner wall of the cavity, and the slider 32 slides in the slide groove 23. The slider 32 can be guided by the slide groove 23. The two sides of the cavity are fixedly connected with the limiting rod 24, and the anti-loosening block 34 is slidably connected to the limiting rod 24. The anti-loosening block 34 can be limited by setting the limiting rod 24.

[0027] The working principle and use process of the utility model are as follows: first, by setting the anti-loosening groove 11 and the anti-loosening component 3, when connecting the tube body 1, the connecting tube 2 is put between the two tube bodies 1, and the connecting tube 2 is rotated to make the external threaded tube 21 gradually connected with the tube body 1 threaded together. When the anti-loosening groove 11 is aligned with the anti-loosening block 34, the rotatable driving member 35 controls the rotation of the bidirectional screw 31, so that the bidirectional screw 31 drives the two sliders 32 to move away from each other, and the slider 32 drives the anti-loosening block 34 through the connecting rod 33 to insert into the anti-loosening groove 11, thereby locking the tube body 1 and preventing the threads from loosening due to vibration.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting structure for oil production and transportation pipelines, comprising a pipe body (1), a connecting pipe (2) and an anti-loosening component (3), characterized in that: The connecting pipe (2) is sleeved between the two pipe bodies (1), both ends of the connecting pipe (2) are provided with external threaded pipes (21), the external threaded pipes (21) are threadedly connected to the inner circumferential wall of the pipe body (1), one side of the connecting pipe (2) is provided with a cavity, and the anti-loosening component (3) is arranged in the cavity; An anti-loosening groove (11) is provided on the outer wall of the tube body (1). The anti-loosening assembly (3) comprises a bidirectional screw (31), a slider (32), a connecting rod (33), an anti-loosening block (34) and a driving member (35). The bidirectional screw (31) is rotatably installed in the cavity. There are two sliders (32). The two sliders (32) are respectively sleeved on the two ends of the bidirectional screw (31) and are threadedly connected to the bidirectional screw (31). The connecting rod (33) is hinged between the slider (32) and the anti-loosening block (34). The anti-loosening block (34) slides through the anti-loosening groove (11). The driving member (35) is installed in the middle of the bidirectional screw (31).

2. The oil production and transportation pipeline connection structure according to claim 1 is characterized by: One end of the tube body (1) close to the connecting tube (2) is butted against a sealing ring (12).

3. The oil production and transportation pipeline connection structure according to claim 1 is characterized in that: The driving member (35) comprises a knob (351), a worm (352) and a worm wheel (353); the knob (351) is fixedly connected to the upper end of the worm (352); the worm (352) is rotatably mounted in the cavity; and the worm wheel (353) is fixedly connected to the middle of the bidirectional screw (31) and meshes with the worm (352).

4. The oil production and transportation pipeline connection structure according to claim 3 is characterized in that: A groove (22) is provided on the outer peripheral wall of the connecting pipe (2), and the knob (351) is embedded in the groove (22).

5. The oil production and transportation pipeline connection structure according to claim 1 is characterized by: A sliding groove (23) is provided on the inner wall of the cavity, and the sliding block (32) slides in the sliding groove (23).

6. The oil production and transportation pipeline connection structure according to claim 1, characterized in that: Limit rods (36) are fixedly connected to both sides of the cavity, and the anti-loosening block (34) is slidably connected to the limit rods (36).

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