Three-section type petroleum pipeline connecting device

Abstract

The utility model discloses a three-section type petroleum pipeline connecting device, particularly relates to the technical field of petroleum pipeline connection, and comprises a first pipeline, second pipelines are arranged at the two ends of the first pipeline, and a connecting mechanism is arranged between the first pipeline and the second pipelines and comprises first connecting rings fixedly arranged at the two ends of the first pipeline. A plurality of fixing frames are fixedly arranged on the surface of the first connecting ring, threaded through holes are formed in the surfaces of the fixing frames, threaded rods are in threaded connection with the interiors of the threaded through holes, an anti-falling disc is rotationally arranged at one end of each threaded rod, and a rubber layer is fixedly arranged on one side of each anti-falling disc. According to the petroleum pipeline connecting device, the anti-falling disc can move by rotating the fixing head, the friction force is enhanced by the rubber layer, the connection looseness is prevented, the connection stability is improved, the adaptability of the petroleum pipeline connecting device to a complex medium environment is enhanced through double sealing, the safety and the stability in the petroleum conveying process are guaranteed, and the maintenance cost and the maintenance frequency are reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline connection technology, and more specifically, to a three-section oil pipeline connection device. Background Technology

[0002] In the process of oil transportation, the connection of oil pipelines is a very important link. Pipeline oil transportation is to pressurize crude oil and transport it from one place to another through oil pipelines. The purpose of pressurization is to provide kinetic energy to crude oil to overcome geographical differences and pressure losses along the pipeline. To realize long-distance transportation of crude oil, there must be two main parts: oil transportation stations and pipelines.

[0003] Existing systems typically use tensioning and connecting components to secure pipes. However, this makes it difficult to disassemble individual pipes during removal, replacement, or installation, thus affecting the overall usability of the system.

[0004] A search revealed that Chinese patent CN221237342U discloses an oil pipeline connection device. This structure utilizes a positioning component within the mounting base. Pulling the sliding rod drives the connecting belt, which in turn moves the rotating ring, pushing the block to compress the return spring. As the rotating ring moves, it engages with the meshing wheel, causing the meshing wheel and the lead screw to rotate. Because the positioning pin is threaded into the lead screw, the positioning pin retracts. At this point, the upper limit strip of the mounting plate aligns with the limiting groove of the mounting cavity. After inserting the mounting plate, releasing the sliding rod causes the return spring to extend the positioning pin and insert it into the positioning hole, completing the mounting plate positioning. Its advantages include the ability to quickly install the mounting plate by simply pulling the sliding rod, and the two-sided positioning components avoid the need to simultaneously operate two oil pipes when disassembling or replacing them, preventing operational confusion and effectively ensuring the smooth progress of subsequent work, thus improving work efficiency.

[0005] However, in actual use, the return spring is in a state of compression and reset for a long time, which can easily lead to fatigue failure. This results in insufficient elastic force to allow the positioning pin to extend accurately and insert into the positioning hole, affecting the overall stability. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a three-section oil pipeline connection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A three-section oil pipeline connection device includes a first pipeline, with a second pipeline at both ends of the first pipeline, and a connection mechanism between the first pipeline and the second pipeline.

[0009] The connecting mechanism includes a first connecting ring fixedly disposed at both ends of the first pipe. The first connecting ring is fixedly disposed with multiple fixing frames. A threaded through hole is opened on one side of the fixing frame. A threaded rod is threadedly connected inside the threaded through hole. An anti-detachment disc is rotatably disposed at one end of the threaded rod. A rubber layer is fixedly disposed on one side of the anti-detachment disc. A fixing head is fixedly disposed at the other end of the threaded rod. A second connecting ring is fixedly disposed at one end of the second pipe. Multiple openings are opened on the surface of the second connecting ring. The openings match the fixing frames.

[0010] By adopting the above technical solution: the fixing frame on the first connecting ring matches the port on the second connecting ring, which facilitates the positioning of the pipeline connection; rotating the fixing head allows the anti-detachment disc to move; the rubber layer enhances friction, prevents the connection from loosening, and improves the connection stability; the synergistic effect of multiple components ensures the firmness of the connection between the first and second pipelines, providing effective support for the safe and stable oil transportation process.

[0011] As a further description of the above technical solution: a sealing mechanism is provided on one side of the first connecting ring, the sealing mechanism includes multiple slots formed on the surface of the first connecting ring, multiple arc-shaped inserts are provided on one side of the second connecting ring, the multiple slots are adapted to the multiple arc-shaped inserts, a threaded hole is formed on the first connecting ring, and a through hole is formed on the surface of the second connecting ring, the through hole and the threaded hole are connected by bolts;

[0012] The first pipe has fixed rings at both ends, and the second pipe has a stabilizing ring at one end, with the inner diameter of the stabilizing ring being larger than the outer diameter of the fixed ring.

[0013] By adopting the above technical solutions, the tightness of the oil pipeline connection is ensured, the risk of leakage is reduced, and the stability of the connection device is improved, thus meeting the needs of oil transportation operations.

[0014] As a further description of the above technical solution: sealing grooves adapted to the stabilizing ring are opened at both ends of the first pipe, and an outer sealing ring is installed between the stabilizing ring and the sealing groove;

[0015] The second pipe has a connecting groove on one side that is adapted to the fixing ring. An inner sealing ring is installed between the connecting groove and the fixing ring. Both the outer sealing ring and the inner sealing ring are made of fluororubber sealing ring material.

[0016] By adopting the above technical solution, precise positioning is provided for the installation of the outer and inner sealing rings, ensuring the stability and sealing performance of the sealing ring installation. Moreover, the double sealing structure, with the outer sealing ring connected to the stabilizing ring and the inner sealing ring connected to the fixing ring, forms multiple protective barriers.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] By setting up a connection mechanism, compared with existing technologies, the connection ring is aligned and the port and fixed frame are matched. Then, the arc-shaped insert is inserted into the slot for initial positioning. The operation is simple and can effectively ensure the accuracy of the initial connection position. Secondly, rotating the pipe drives the connection ring and insert to move, so that the threaded holes are aligned, making it easy for the bolt to pass through and tighten, realizing a tight connection of the connection ring and enhancing the overall structural stability. Furthermore, rotating the fixed head drives the threaded rod to move the anti-loosening disc, and the rubber layer contacts the bolt to prevent loosening, further improving the connection stability. In addition, the combination of multiple connection and fastening methods ensures the firmness of the oil pipeline connection, effectively reduces the risk of loosening and leakage at the connection point, and ensures the safety and stability of oil transportation.

[0019] By setting up a sealing mechanism, compared with the existing technology, the outer sealing ring is inserted into the sealing groove of the fixed ring, and the inner sealing ring is inserted into the connecting groove of the stabilizing ring. The installation is tight and stable, forming a double sealing structure. Secondly, both the outer and inner sealing rings are made of fluororubber, which has good oil resistance and can effectively resist the corrosion of petroleum media, thereby avoiding oil leakage. Furthermore, the double sealing structure increases the reliability of the seal. Even if one sealing ring is slightly damaged, the other can still ensure the sealing effect to a certain extent and reduce the risk of leakage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0022] Figure 3 This is a schematic diagram of the connection mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram showing the installation of the outer and inner sealing rings of this utility model.

[0025] The attached figures are labeled as follows: 1. First pipe; 2. Second pipe; 3. First connecting ring; 4. Fixing frame; 5. Threaded rod; 6. Anti-detachment disc; 7. Rubber layer; 8. Fixing head; 9. Second connecting ring; 10. Through port; 11. Slot; 12. Arc-shaped insert; 13. Threaded hole; 14. Bolt; 15. Fixing ring; 16. Stabilizing ring; 17. Sealing groove; 18. Outer sealing ring; 19. Connecting groove; 20. Inner sealing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The embodiments disclosed in this application are as follows: Figures 1-5 The three-section oil pipeline connection device shown includes a first pipeline 1, with a second pipeline 2 at both ends of the first pipeline 1, and a connection mechanism between the first pipeline 1 and the second pipeline 2.

[0028] The connecting mechanism includes a first connecting ring 3 fixedly installed at both ends of the first pipe 1. Multiple fixing frames 4 are fixedly installed on the surface of the first connecting ring 3. A threaded through hole is opened on one side of the fixing frame 4. A threaded rod 5 is threadedly connected inside the threaded through hole. An anti-detachment disc 6 is rotatably installed at one end of the threaded rod 5. A rubber layer 7 is fixedly installed on one side of the anti-detachment disc 6. A fixing head 8 is fixedly installed at the other end of the threaded rod 5. A second connecting ring 9 is fixedly installed at one end of the second pipe 2. Multiple openings 10 are opened on the surface of the second connecting ring 9. The openings 10 match the fixing frames 4.

[0029] Connect the second pipe 2 to the first pipe 1, align the first connecting rings 3 at both ends of the first pipe 1 with the second connecting ring 9 at one end of the second pipe 2, so that the through-hole 10 on the surface of the second connecting ring 9 matches the fixing frame 4 on the surface of the first connecting ring 3, and then rotate the fixing head 8 so that the threaded rod 5 rotates in the threaded through hole on the surface of the fixing frame 4. The anti-detachment disc 6 at one end of the threaded rod 5 moves toward the second connecting ring 9, and the rubber layer 7 on one side of the anti-detachment disc 6 is in close contact with the surface of the bolt 14 to prevent the bolt 14 from loosening and further enhance the stability of the connection.

[0030] like Figures 2-3 As shown, a sealing mechanism is provided on one side of the first connecting ring 3. The sealing mechanism includes a plurality of slots 11 formed on the surface of the first connecting ring 3.

[0031] The second connecting ring 9 has multiple arc-shaped inserts 12 on one side, and multiple slots 11 are adapted to the multiple arc-shaped inserts 12; the first connecting ring 3 has a threaded hole, and the second connecting ring 9 has a through hole 13, and the through hole 13 and the threaded hole are connected by bolts 14.

[0032] Insert the arc-shaped insert 12 into the slot 11 on the surface of the first connecting ring 3, so that one side of the arc-shaped insert 12 connects with the surface of the second connecting ring 9, which serves as a preliminary positioning function. Then rotate the second pipe 2. The rotation of the second pipe 2 drives the second connecting ring 9 to rotate. The second connecting ring 9 drives the arc-shaped insert 12 to move inside the slot 11 until the threaded holes 13 on the surfaces of the first connecting ring 3 and the second connecting ring 9 correspond. Then pass the bolt 14 through the threaded holes 13 on the surfaces of the first connecting ring 3 and the second connecting ring 9, and tighten the bolt 14 to make the first connecting ring 3 and the second connecting ring 9 tightly connected together.

[0033] like Figures 4-5 As shown, both ends of the first pipe 1 are provided with fixing rings 15, and one end of the second pipe 2 is provided with a stabilizing ring 16, the inner diameter of the stabilizing ring 16 being larger than the outer diameter of the fixing ring 15.

[0034] The first pipe 1 has sealing grooves 17 at both ends that are adapted to the stabilizing ring 16, and an outer sealing ring 18 is installed between the stabilizing ring 16 and the sealing groove 17.

[0035] A connecting groove 19 adapted to the fixing ring 15 is provided on one side of the second pipe 2. An inner sealing ring 20 is installed between the connecting groove 19 and the fixing ring 15. Both the outer sealing ring 18 and the inner sealing ring 20 are made of fluororubber sealing ring material.

[0036] The outer sealing ring 18 is inserted into the sealing groove 17 on the surface of the fixing ring 15 to ensure that the outer sealing ring 18 is installed in place and fits tightly against the sealing groove 17. The inner sealing ring 20 is also inserted into the connecting groove 19 on the inner wall of the stabilizing ring 16 to ensure that the inner sealing ring 20 is installed firmly. Both the outer sealing ring 18 and the inner sealing ring 20 are made of fluororubber sealing ring material, which has good oil resistance.

[0037] Working principle of this utility model:

[0038] This utility model is a three-section oil pipeline connection device. When using and installing this device, the second pipeline 2 is connected to the first pipeline 1, and the first connecting rings 3 at both ends of the first pipeline 1 are aligned with the second connecting ring 9 at one end of the second pipeline 2, so that the opening 10 on the surface of the second connecting ring 9 matches the fixing frame 4 on the surface of the first connecting ring 3.

[0039] Insert the arc-shaped insert 12 into the slot 11 on the surface of the first connecting ring 3, so that one side of the arc-shaped insert 12 is connected to the surface of the second connecting ring 9, which serves as a preliminary positioning function. Then rotate the second pipe 2. The rotation of the second pipe 2 drives the second connecting ring 9 to rotate. The second connecting ring 9 drives the arc-shaped insert 12 to move inside the slot 11 until the threaded holes 13 on the surfaces of the first connecting ring 3 and the second connecting ring 9 correspond. Then pass the bolt 14 through the threaded hole 13 on the surface of the second connecting ring 9 and rotate it into the threaded hole on one side of the first connecting ring 3. Tighten the bolt 14 to make the first connecting ring 3 and the second connecting ring 9 tightly connected together.

[0040] At the same time, the outer sealing ring 18 is inserted into the sealing groove 17 on the surface of the fixing ring 15 to ensure that the outer sealing ring 18 is installed in place and fits tightly into the sealing groove 17. The inner sealing ring 20 is also inserted into the connecting groove 19 on the inner wall of the stabilizing ring 16 to ensure that the inner sealing ring 20 is installed firmly. Both the outer sealing ring 18 and the inner sealing ring 20 are made of fluororubber sealing ring material, which has good oil resistance.

[0041] Then rotate the fixing head 8 so that the threaded rod 5 rotates in the threaded groove on the surface of the fixing frame 4. The anti-detachment disc 6 at one end of the threaded rod 5 moves toward the second connecting ring 9. The rubber layer 7 on one side of the anti-detachment disc 6 is in close contact with the surface of the bolt 14 to prevent the bolt 14 from loosening and further enhance the stability of the connection.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-section oil pipeline connection device, comprising a first pipeline (1), characterized in that: A second pipe (2) is provided at both ends of the first pipe (1), and a connecting mechanism is provided between the first pipe (1) and the second pipe (2); The connecting mechanism includes a first connecting ring (3) fixedly disposed at both ends of the first pipe (1). Multiple fixing frames (4) are fixedly disposed on the surface of the first connecting ring (3). A threaded through hole is opened on one side of the fixing frame (4). A threaded rod (5) is threadedly connected inside the threaded through hole. An anti-detachment disc (6) is rotatably disposed at one end of the threaded rod (5). A rubber layer (7) is fixedly disposed on one side of the anti-detachment disc (6). A fixing head (8) is fixedly disposed at the other end of the threaded rod (5). A second connecting ring (9) is fixedly disposed at one end of the second pipe (2).

2. The three-section oil pipeline connection device according to claim 1, characterized in that: The surface of the second connecting ring (9) is provided with a plurality of openings (10), which are matched with the fixing frame (4).

3. The three-section oil pipeline connection device according to claim 1, characterized in that: A sealing mechanism is provided on one side of the first connecting ring (3), the sealing mechanism includes multiple slots (11) formed on the surface of the first connecting ring (3), and multiple arc-shaped inserts (12) are provided on one side of the second connecting ring (9), the multiple slots (11) and the multiple arc-shaped inserts (12) are adapted to each other; The first connecting ring (3) has a threaded hole, and the second connecting ring (9) has a through hole (13). The through hole (13) and the threaded hole are connected by a bolt (14).

4. The three-section oil pipeline connection device according to claim 1, characterized in that: The first pipe (1) is provided with a fixing ring (15) at both ends, and the second pipe (2) is provided with a stabilizing ring (16) at one end. The inner diameter of the stabilizing ring (16) is larger than the outer diameter of the fixing ring (15).

5. The three-section oil pipeline connection device according to claim 4, characterized in that: The first pipe (1) has sealing grooves (17) at both ends that are adapted to the stabilizing ring (16), and an outer sealing ring (18) is installed between the stabilizing ring (16) and the sealing groove (17).

6. The three-section oil pipeline connection device according to claim 5, characterized in that: The second pipe (2) has a connecting groove (19) on one side that is compatible with the fixing ring (15). An inner sealing ring (20) is installed between the connecting groove (19) and the fixing ring (15). Both the outer sealing ring (18) and the inner sealing ring (20) are made of fluororubber sealing ring material.

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