Quick connecting mechanism for petroleum transportation pipeline

Abstract

The utility model relates to the technical field of quick connecting mechanisms, in particular to a quick connecting mechanism for a petroleum transportation pipeline. Comprising an outer threaded pipe, oil pipes arranged at the two ends of the outer threaded pipe, first inner threaded sleeves which are arranged at the two ends of the outer threaded pipe and can rotate, and a clamping mechanism which is arranged outside the first inner threaded sleeves and used for clamping the oil pipes. A second external thread is formed in the outer wall of the rotating sleeve; a second internal thread sleeve is mounted outside one end of the second external thread and is in threaded fit with the second external thread; a plurality of wedge-shaped blocks are arranged on the outer wall of the second inner threaded sleeve at equal intervals around the center axis of the second inner threaded sleeve, and U-shaped grooves are obliquely formed in the wedge-shaped blocks. The oil pipe can be clamped or released by the clamping rod, and the problems that the oil pipe butt joint period is long and installation is inconvenient are solved.

Description

Technical Field

[0001] This utility model application relates to the technical field of quick connection mechanisms, specifically to a quick connection mechanism for oil transportation pipelines. Background Technology

[0002] Oil pipelines are core infrastructure of the petroleum industry, enabling the long-distance transport of crude oil, refined oil products, and natural gas through a closed network. The main body of the pipeline is made of high-strength steel, with parts buried underground or on the seabed, and equipped with anti-corrosion layers, insulation layers, and intelligent monitoring systems to ensure safe and efficient transportation. Their advantages include large transport capacity, low cost, minimal weather-related impact, and continuous operation, making them a primary mode of land and sea oil transportation.

[0003] Chinese patent CN218543506U discloses a petrochemical pipeline connection structure, including a first pipeline, a second pipeline, a connecting member, and two pre-installed components. The first pipeline connects to the second pipeline via the connecting member. The two pre-installed components are detachably connected to the outer sides of the first and second pipelines, respectively. The connecting member includes a connecting pipe with annular connecting grooves on both sides. The opposite ends of the first and second pipelines are movably inserted into the two annular connecting grooves. A locking mechanism for connecting the two pre-installed components is provided at the top of the outer wall of the connecting pipe. This petrochemical pipeline connection structure allows the two pre-installed components to be pre-installed on the outer walls of the first and second pipelines before pipeline laying. During pipeline connection, the locking mechanism moves the two pre-installed components relative to each other, enabling rapid pipeline connection and fixation.

[0004] The petrochemical pipeline connection structure described in the aforementioned patent documents involves fitting a first and second clamping plate onto the outside of a first and second pipeline, and then securing them with bolts. This results in a long assembly and disassembly cycle and is extremely inconvenient. Therefore, a quick-connect mechanism for oil transportation pipelines is proposed. Utility Model Content

[0005] To address the aforementioned problems, a quick-connect mechanism for oil transportation pipelines is provided. Utilizing the rotation of a rotating sleeve, the rotating sleeve drives a second internally threaded sleeve via a second external thread. The second internally threaded sleeve simultaneously drives a wedge block, which in turn moves a U-shaped groove. The U-shaped groove then pushes a clamping rod via a roller, allowing the clamping rod to rotate around its hinge point with the first internally threaded sleeve. As the clamping rod rotates, it clamps or releases the oil pipe, solving the problems of long connection cycles and inconvenient installation for oil pipes.

[0006] To address the existing technical problems, this application provides a quick connection mechanism for oil transportation pipelines, including an externally threaded pipe, oil pipes disposed at both ends of the externally threaded pipe, a first internally threaded sleeve disposed at both ends of the externally threaded pipe that can rotate, and a clamping mechanism disposed outside the first internally threaded sleeve for clamping the oil pipe. The clamping mechanism includes a rotating sleeve that can rotate along the central axis of the first internally threaded sleeve, and a second external thread is provided on the outer wall of the rotating sleeve.

[0007] A second internal thread sleeve is installed on the outside of one end of the second external thread, and the second internal thread sleeve is threadedly engaged with the second internal thread sleeve.

[0008] Several wedge-shaped blocks are equidistantly arranged around the central axis on the outer wall of the second internal thread sleeve, and U-shaped grooves are inclinedly opened on the wedge-shaped blocks;

[0009] The first internal threaded sleeve has a clamping rod fixed to the outside of one end of a wedge-shaped block that is equidistant from its central axis. The clamping rod and the first internal threaded sleeve are hinged together.

[0010] One end of the clamping rod is equipped with a roller shaft that can travel along the U-shaped groove.

[0011] As one technical solution of this application, a second handwheel is fixed at one end of the clamping mechanism away from the second internal threaded sleeve. The second handwheel is used to control the rotating sleeve to rotate around the central axis of the first internal threaded sleeve.

[0012] As one technical solution of this application, the outer walls at both ends of the externally threaded pipe are provided with first external threads;

[0013] The first internal thread sleeve is installed at both ends of the external threaded pipe and mates with the first external thread.

[0014] As one technical solution of this application, a first handwheel is fixed at the end of the first internal threaded sleeve away from the clamping mechanism.

[0015] As one technical solution of this application, a first flange is fixed at the end of the first internal threaded sleeve away from the first handwheel;

[0016] The clamping rod is hinged to one side of the first flange;

[0017] One end of the oil pipe is provided with a third flange that can be connected to the first flange.

[0018] As one technical solution of this application, the end of the clamping rod away from the roller shaft is provided with an abutment part, which has a hook-shaped structure.

[0019] The advantages of this utility model application compared to the prior art are:

[0020] 1. This application utilizes the rotation of a rotating sleeve, which drives a second internally threaded sleeve via a second external thread. The second internally threaded sleeve synchronously drives a wedge block, which in turn drives a U-shaped groove to move synchronously. Then, the U-shaped groove pushes a clamping rod via a roller, allowing the clamping rod to rotate around its hinge point with the first internally threaded sleeve. As the clamping rod rotates, it clamps or releases the oil pipe, solving the problems of long oil pipe connection cycles and inconvenient installation.

[0021] 2. This application involves fitting a first internally threaded sleeve onto both ends of an externally threaded pipe, with the inner ring of the first internally threaded sleeve engaging with the first external thread on the outside of the externally threaded pipe. When the first internally threaded sleeve rotates, it not only rotates around the central axis of the externally threaded pipe but also moves along the central axis direction of the externally threaded pipe during rotation. This enables the quick-connect mechanism to be adjusted according to the distance between pipes. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a quick-connect mechanism for oil transportation pipelines. Figure 1 .

[0023] Figure 2 A three-dimensional structural diagram of a quick-connect mechanism for oil transportation pipelines. Figure 2 .

[0024] Figure 3 This is a three-dimensional view of the clamping mechanism in a quick-connect mechanism for oil transportation pipelines.

[0025] Figure 4 This is an exploded view of the clamping mechanism in a quick-connect mechanism for oil transportation pipelines.

[0026] Figure 5 This is a three-dimensional view of the first internal threaded sleeve in a quick-connect mechanism for oil transportation pipelines.

[0027] Figure 6 This is a three-dimensional structural diagram of an externally threaded pipe in a quick-connect mechanism for oil transportation pipelines.

[0028] Figure 7 yes Figure 3 A magnified structural diagram at point A in the diagram.

[0029] The numbers in the diagram are as follows: 1. External threaded pipe; 11. First external thread; 2. First internal threaded sleeve; 21. First handwheel; 22. First flange; 3. Clamping mechanism; 31. Rotating sleeve; 32. Second handwheel; 33. Second external thread; 34. Second internal threaded sleeve; 341. Wedge block; 342. U-groove; 4. Clamping rod; 41. Hinge part; 42. Abutment part; 43. Roller shaft; 5. Oil pipe; 51. Third flange. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0031] See Figures 1-7 As shown, a quick connection mechanism for oil transportation pipelines includes an externally threaded pipe 1, oil pipes 5 disposed at both ends of the externally threaded pipe 1, a first internally threaded sleeve 2 disposed at both ends of the externally threaded pipe 1 and rotatable, and a clamping mechanism 3 disposed outside the first internally threaded sleeve 2 for clamping the oil pipes 5. The clamping mechanism 3 includes a rotating sleeve 31 that can rotate along the central axis of the first internally threaded sleeve 2, and a second external thread 33 is provided on the outer wall of the rotating sleeve 31.

[0032] A second internal thread sleeve 34 is installed on the outside of one end of the second external thread 33, and the second internal thread sleeve 34 is threadedly engaged with the second external thread 33.

[0033] Several wedge blocks 341 are equidistantly arranged on the outer wall of the second internal threaded sleeve 34 around its central axis, and U-shaped grooves 342 are inclinedly opened on the wedge blocks 341.

[0034] One end of the first internal threaded sleeve 2 is fixed with a wedge-shaped block 341 that is equidistant from its central axis and a corresponding clamping rod 4. The clamping rod 4 and the first internal threaded sleeve 2 are hinged together.

[0035] One end of the clamping rod 4 is equipped with a roller 43 that can travel along the U-shaped groove 342.

[0036] The rotation of the rotating sleeve 31 drives the second internal thread sleeve 34 via the second external thread 33, allowing the second internal thread sleeve 34 to move along the central axis of the rotating sleeve 31. Simultaneously, the second internal thread sleeve 34 moves, driving the wedge block 341, which in turn drives the U-shaped groove 342 to move synchronously. The U-shaped groove 342 then pushes the clamping rod 4 via the roller 43, allowing the clamping rod 4 to rotate around the hinge point with the first internal thread sleeve 2. This rotation of the clamping rod 4 clamps or releases the oil pipe 5, solving the problems of long connection cycles and inconvenient installation of the oil pipe 5.

[0037] See Figure 2 , Figure 3 and Figure 7 As shown, a second handwheel 32 is fixed at one end of the clamping mechanism 3 away from the second internal threaded sleeve 34. The second handwheel 32 is used to control the rotating sleeve 31 to rotate around the central axis of the first internal threaded sleeve 2.

[0038] When the rotating sleeve 31 needs to be rotated, it is held on the second handwheel 32 and then the second handwheel 32 is turned, so that the rotating sleeve 31 rotates around the central axis of the first internal thread sleeve 2 at the same time as the second handwheel 32 rotates. This makes the rotation of the rotating sleeve 31 more effortless and convenient.

[0039] See Figure 6 As shown, the outer walls at both ends of the externally threaded pipe 1 are provided with first external threads 11;

[0040] The first internal threaded sleeve 2 is installed at both ends of the external threaded pipe 1 and is threadedly engaged with the first external thread 11.

[0041] By fitting the first internal threaded sleeve 2 onto both ends of the external threaded pipe 1, and with the inner ring of the first internal threaded sleeve 2 threadedly engaging with the first external thread 11 on the outside of the external threaded pipe 1, when the first internal threaded sleeve 2 rotates, it not only rotates around the central axis of the external threaded pipe 1, but also moves along the central axis direction of the external threaded pipe 1 while rotating. This enables the quick-connect mechanism to be adjusted according to the distance between pipes.

[0042] See Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the first handwheel 21 is fixed at the end of the first internal threaded sleeve 2 away from the clamping mechanism 3.

[0043] When the first internal threaded sleeve 2 needs to be rotated, it is held on the first handwheel 21 and then rotated, causing the first handwheel 21 to drive the first internal threaded sleeve 2 to rotate around the central axis of the external threaded tube 1. This makes the rotation of the first internal threaded sleeve 2 easier.

[0044] See Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the first internal threaded sleeve 2 is fixed to the first flange 22 at the end away from the first handwheel 21;

[0045] The clamping rod 4 is hinged to one side of the first flange 22;

[0046] One end of the oil pipe 5 is provided with a third flange 51 that can be connected to the first flange 22.

[0047] To facilitate the connection between the first internal threaded sleeve 2 and the oil pipe 5, a third flange 51 is fixed at one end of the oil pipe 5 near the first internal threaded sleeve 2, and a first flange 22 is fixed at one end of the first internal threaded sleeve 2 near the oil pipe 5. When the first internal threaded sleeve 2 is close to the oil pipe 5, the first flange 22 at one end of the first internal threaded sleeve 2 can close with the oil pipe 5.

[0048] See Figure 1 , Figure 3 and Figure 4 As shown, the end of the clamping rod 4 away from the roller shaft 43 is provided with an abutment part 42, which has a hook-shaped structure.

[0049] To ensure that the clamping rod 4 can effectively clamp the third flange 51, an abutment portion 42 is provided at the end of the clamping rod 4 away from the roller shaft 43. When the clamping rod 4 rotates around the hinge point with the first flange 22, the abutment portion 42 can retract the third flange 51 and the first flange 22, ensuring an effective connection between the third flange 51 and the first flange 22.

[0050] The above embodiments only illustrate one or more implementation methods of this utility model application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

Claims

1. A quick-connect mechanism for an oil transport pipeline, comprising an externally threaded pipe (1), oil pipes (5) disposed at both ends of the externally threaded pipe (1), a first internally threaded sleeve (2) rotatable at both ends of the externally threaded pipe (1), and a clamping mechanism (3) disposed outside the first internally threaded sleeve (2) for clamping the oil pipes (5), characterized in that, The clamping mechanism (3) includes a rotating sleeve (31) that can rotate along the central axis of the first internal thread sleeve (2), and a second external thread (33) is provided on the outer wall of the rotating sleeve (31). A second internal thread sleeve (34) is installed on the outside of one end of the second external thread (33), and the second internal thread sleeve (34) is threadedly engaged with the second external thread (33); The outer wall of the second internal threaded sleeve (34) is provided with several wedge blocks (341) equidistantly arranged around its central axis, and U-shaped grooves (342) are inclinedly opened on the wedge blocks (341). The first internal threaded sleeve (2) has a wedge-shaped block (341) that is equidistant from its central axis fixed to the outside of one end, and a corresponding clamping rod (4) is provided. The clamping rod (4) and the first internal threaded sleeve (2) are hinged together. One end of the clamping rod (4) is equipped with a roller (43) that can travel along the U-shaped groove (342).

2. The quick-connect mechanism for oil transportation pipelines according to claim 1, characterized in that, The clamping mechanism (3) has a second handwheel (32) fixed at one end away from the second internal threaded sleeve (34). The second handwheel (32) is used to control the rotating sleeve (31) to rotate around the central axis of the first internal threaded sleeve (2).

3. The quick-connect mechanism for oil transportation pipelines according to claim 1, characterized in that, The outer walls at both ends of the externally threaded pipe (1) are provided with first external threads (11); The first internal thread sleeve (2) is installed at both ends of the external thread tube (1) and is threadedly engaged with the first external thread (11).

4. The quick-connect mechanism for oil transportation pipelines according to claim 1, characterized in that, The first internal threaded sleeve (2) is fixed with a first handwheel (21) at the end away from the clamping mechanism (3).

5. A quick-connect mechanism for oil transportation pipelines according to claim 4, characterized in that, The first internal threaded sleeve (2) is fixed with a first flange (22) at the end away from the first handwheel (21); The clamping rod (4) is hinged to one side of the first flange (22); One end of the oil pipe (5) is provided with a third flange (51) that can be connected to the first flange (22).

6. The quick-connect mechanism for oil transportation pipelines according to claim 1, characterized in that, The clamping rod (4) has an abutment part (42) at one end away from the roller shaft (43), and the abutment part (42) has a hook-shaped structure.

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