Anti-misloading alignment mechanism for tubing hanger straight through and compression ring
By designing an anti-misinstallation alignment mechanism between the oil pipe hanger and the pressure ring, and utilizing the cooperation of the rotating arm and the pressure rod, the problem of inconvenient pressure ring installation was solved, achieving convenient alignment of the pressure ring and improved sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LICHANG PETROLEUM MASCH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-10
AI Technical Summary
In the existing technology, during the installation of the tubing straight connector and the pressure ring, the pressure ring on the side is difficult to align with the groove, which can easily lead to misinstallation, resulting in inconvenient installation and insufficient sealing.
A mechanism for aligning and preventing misinstallation of the tubing straight connector and the pressure ring was designed. By rotating the first and second rotating arms, the middle pressure rod and the side pressure rod squeeze the pressure ring, thereby shrinking the pressure ring and inserting it into the inside of the straight connector. The pressure ring groove is used for alignment and positioning during installation.
It enables convenient alignment and positioning installation of the pressure ring, improves operational convenience and sealing performance, and adapts to the installation requirements of straight-through joints of different depths.
Smart Images

Figure CN224475840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure ring installation technology, and in particular to an anti-misinstallation alignment mechanism for oil pipe straight connectors and pressure rings. Background Technology
[0002] A straight-through pipe fitting is a widely used connecting component in pipeline engineering or hydraulic systems. It is mainly used to achieve a straight connection of oil pipes, ensuring that fluid can be smoothly transmitted in the pipeline. The installation of a pressure ring is to enhance the sealing and stability of the connection, preventing loosening or leakage caused by factors such as vibration, pressure changes or temperature changes, thereby ensuring the safe and reliable operation of the entire pipeline system.
[0003] In existing technologies, a pressure ring is typically installed at one end inside the straight-through connector to achieve a seal by contacting the end of the connecting pipe. To improve the reliability of the seal, some straight-through connectors, in addition to the pressure ring at one end inside the connector, also have a groove on the inner side of the connector to accommodate the pressure ring. During the installation of the connecting pipe, the side pressure ring presses against the outside of the connecting pipe to achieve a further sealing effect. See [link to relevant documentation]. Figure 3 However, the side pressure ring is very inconvenient to install, as it is difficult to align and position with the groove, and it is easy to misinstall. Therefore, this utility model proposes an anti-misinstallation alignment mechanism for the oil pipe straight connector and the pressure ring to solve the problems existing in the prior art. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes an anti-misinstallation alignment mechanism for oil pipe straight connectors and pressure rings. This mechanism works by rotating the first and second rotating arms, causing the central pressure rod to press against the middle end of the outer side of the pressure ring, and the two sets of side pressure rods to press against the two ends of the inner side of the pressure ring, causing the pressure ring to contract. By inserting the central pressure rod and side pressure rods into the inner side of the straight connector, the pressure ring can be easily fed into the pressure ring groove. After releasing the pressure, the pressure ring resets and snaps into the pressure ring groove, achieving the purpose of alignment and positioning installation, making operation more convenient.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an anti-misinstallation alignment mechanism for oil pipe straight connector and pressure ring, including a first rotating arm and a second rotating arm, with a joint provided above one end of the first rotating arm and below one end of the second rotating arm, and the two sets of joints are hinged to each other.
[0006] A central pressure rod is provided below the lower end of the connector, and a side pressure rod is provided at one end of the first and second rotating arms. The central pressure rod is used to squeeze the middle end of the outer side of the pressure ring, and the two sets of side pressure rods are used to squeeze the two ends of the inner side of the pressure ring.
[0007] A further improvement is that the middle pressure rod and the side pressure rod are used to insert into the inner side of the straight connector, and the inner side of the straight connector is provided with a pressure ring groove. The middle pressure rod and the side pressure rod are used to send the pressure ring into the pressure ring groove.
[0008] A further improvement is that the two sets of joints are rotatably connected by a hinge shaft.
[0009] A further improvement is that the outer sides of both the first and second swing arms are covered with rubber, and the outer side of the rubber has anti-slip texture.
[0010] A further improvement is that the outer side of the intermediate pressure rod is provided with scale lines, and the scale lines are used to indicate the length data of the intermediate pressure rod.
[0011] A further improvement is that: the bottom of the lower end of the connector and one end of the bottom of the first and second rotating arms are provided with internal thread grooves, and the upper part of the outer side of the middle pressure rod and the side pressure rod are provided with external threads. The middle pressure rod and the side pressure rod are fixed to the internal thread grooves through the external threads.
[0012] A further improvement is that the lengths of the central pressure rod and the side pressure rod are the same, and the outer surfaces of the central pressure rod and the side pressure rod are both smooth surfaces.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model rotates the first and second rotating arms, causing the central pressure rod to press the middle end of the outer side of the pressure ring, and the two sets of side pressure rods to press the two ends of the inner side of the pressure ring, causing the pressure ring to shrink. By inserting the central pressure rod and side pressure rods into the inner side of the straight connector, the pressure ring can be easily sent into the pressure ring groove. After releasing the pressure, the pressure ring resets and is locked into the pressure ring groove, achieving the purpose of alignment and positioning installation, making the operation more convenient.
[0015] 2. This utility model uses scale lines to facilitate observation of the length of the middle pressure rod and side pressure rod inserted into the straight connector, thereby making it easier to determine the installation depth of the pressure ring and further improving convenience.
[0016] 3. In this utility model, the central pressure rod and the side pressure rod are fixed to the first rotating arm, the second rotating arm and the internal thread groove on the joint through external threads, which facilitates the installation, disassembly and replacement of central pressure rods and side pressure rods of different lengths, and adapts to the needs of installing pressure rings of different depth straight-through joints. Attached Figure Description
[0017] Figure 1 This is the front view of the present invention;
[0018] Figure 2 This is a schematic diagram illustrating the operation of this utility model;
[0019] Figure 3 This is a schematic diagram of the straight connector of this utility model.
[0020] The components are: 1. First swing arm; 2. Second swing arm; 3. Joint; 4. Central pressure rod; 5. Side pressure rod; 6. Pressure ring; 7. Straight-through joint; 8. Pressure ring groove; 9. Hinge shaft; 10. Scale line; 11. External thread. Detailed Implementation
[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0022] Example 1
[0023] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes an anti-misinstallation alignment mechanism for oil pipe straight connector and pressure ring, including a first rotating arm 1 and a second rotating arm 2. A connector 3 is provided above one end of the first rotating arm 1 and below one end of the second rotating arm 2. The two sets of connectors 3 are hinged to each other.
[0024] A central pressure rod 4 is provided below the lower end of the connector 3. A side pressure rod 5 is provided at one end of both the first rotating arm 1 and the second rotating arm 2. The central pressure rod 4 is used to press the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 are used to press the two ends of the inner side of the pressure ring 6. In use, by rotating the first rotating arm 1 and the second rotating arm 2, the central pressure rod 4 presses the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 press the two ends of the inner side of the pressure ring 6, causing the pressure ring 6 to contract. By inserting the central pressure rod 4 and the side pressure rods 5 into the inside of the straight connector 7, the pressure ring 6 can be easily fed into the pressure ring groove 8. After releasing the pressure, the pressure ring 6 resets and snaps into the pressure ring groove 8, achieving the purpose of aligned positioning and installation, making operation more convenient.
[0025] The central pressure rod 4 and side pressure rod 5 are inserted into the inner side of the straight connector 7. The inner side of the straight connector 7 is provided with a pressure ring groove 8. The central pressure rod 4 and side pressure rod 5 are used to send the pressure ring 6 into the pressure ring groove 8. By rotating the first rotating arm 1 and the second rotating arm 2, the central pressure rod 4 squeezes the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 squeeze the two ends of the inner side of the pressure ring 6, causing the pressure ring 6 to contract. By inserting the central pressure rod 4 and side pressure rod 5 into the inner side of the straight connector 7, it is convenient to send the pressure ring 6 into the pressure ring groove 8. After releasing the squeeze, the pressure ring 6 resets and is locked into the pressure ring groove 8, achieving the purpose of alignment and positioning installation, making the operation more convenient.
[0026] The two sets of joints 3 are rotatably connected by a hinge shaft 9. Based on the hinge between the two sets of joints 3, the first rotating arm 1 and the second rotating arm 2 can be rotated to change the position of the central pressure rod 4 and the side pressure rods 5. The central pressure rod 4 presses the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 press the two ends of the inner side of the pressure ring 6, causing the pressure ring 6 to contract.
[0027] Both the first rotating arm 1 and the second rotating arm 2 are covered with rubber on their outer sides, and the outer side of the rubber has anti-slip texture. This makes it convenient for operators to hold the first rotating arm 1 and the second rotating arm 2 for rotation and prevents slippage.
[0028] Example 2
[0029] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes an anti-misinstallation alignment mechanism for oil pipe straight connector and pressure ring, including a first rotating arm 1 and a second rotating arm 2. A connector 3 is provided above one end of the first rotating arm 1 and below one end of the second rotating arm 2. The two sets of connectors 3 are hinged to each other.
[0030] A central pressure rod 4 is provided below the lower end of the connector 3. A side pressure rod 5 is provided at one end of both the first rotating arm 1 and the second rotating arm 2. The central pressure rod 4 is used to press the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 are used to press the two ends of the inner side of the pressure ring 6. In use, by rotating the first rotating arm 1 and the second rotating arm 2, the central pressure rod 4 presses the middle end of the outer side of the pressure ring 6, and the two sets of side pressure rods 5 press the two ends of the inner side of the pressure ring 6, causing the pressure ring 6 to contract. By inserting the central pressure rod 4 and the side pressure rods 5 into the inside of the straight connector 7, the pressure ring 6 can be easily fed into the pressure ring groove 8. After releasing the pressure, the pressure ring 6 resets and snaps into the pressure ring groove 8, achieving the purpose of aligned positioning and installation, making operation more convenient.
[0031] Both the first rotating arm 1 and the second rotating arm 2 are covered with rubber on their outer sides, and the outer side of the rubber has anti-slip texture. This makes it convenient for operators to hold the first rotating arm 1 and the second rotating arm 2 for rotation and prevents slippage.
[0032] The outer side of the central pressure rod 4 is provided with scale lines 10, which are used to indicate the length of the central pressure rod 4. In use, the scale lines 10 facilitate the observation of the length of the central pressure rod 4 and the side pressure rod 5 inserted into the straight connector 7, thereby making it easier to determine the installation depth of the pressure ring 6 and further improving convenience.
[0033] The bottom of the lower connector 3 and one end of the bottom of the first rotating arm 1 and the second rotating arm 2 are all provided with internal threaded grooves. External threads 11 are provided on the upper outer sides of the middle pressure rod 4 and the side pressure rod 5. The middle pressure rod 4 and the side pressure rod 5 are fixed to the internal threaded grooves via the external threads 11. The middle pressure rod 4 and the side pressure rod 5 are of the same length, and their outer sides are smooth to avoid wear on the pressure ring 6. Because the middle pressure rod 4 and the side pressure rod 5 are fixed to the first rotating arm 1, the second rotating arm 2, and the internal threaded grooves on the connector 3 via the external threads 11, it is convenient to install, disassemble, and replace middle pressure rods 4 and side pressure rods 5 of different lengths to accommodate the need for installing pressure rings 6 on straight-through connectors 7 of different depths.
[0034] The anti-misinstallation alignment mechanism for the tubing straight connector and pressure ring works by rotating the first rotating arm 1 and the second rotating arm 2. This causes the central pressure rod 4 to press against the middle end of the outer side of the pressure ring 6, while the two sets of side pressure rods 5 press against the two ends of the inner side of the pressure ring 6, causing the pressure ring 6 to contract. By inserting the central pressure rod 4 and the side pressure rods 5 into the inner side of the straight connector 7, the pressure ring 6 can be easily fed into the pressure ring groove 8. After releasing the pressure, the pressure ring 6 returns to its original position and is locked into the pressure ring groove 8, achieving the purpose of alignment and positioning installation, making operation more convenient. Furthermore, the scale line 10 facilitates observation of the length of the central pressure rod 4 and the side pressure rods 5 inserted into the straight connector 7, thus easily determining the installation depth of the pressure ring 6, further improving convenience. Simultaneously, since the central pressure rod 4 and the side pressure rods 5 are fixed to the first rotating arm 1, the second rotating arm 2, and the internal thread groove on the connector 3 via external threads 11, it is convenient to install, disassemble, and replace central pressure rods 4 and side pressure rods 5 of different lengths to adapt to the needs of installing the pressure ring 6 on straight connectors 7 at different depths.
[0035] 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 illustrative of the principles of this 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 mechanism for aligning a straight connector and pressure ring of an oil pipe to prevent misinstallation, comprising a first rotating arm (1) and a second rotating arm (2), characterized in that: A joint (3) is provided above one end of the first rotating arm (1) and below one end of the second rotating arm (2), and the two sets of joints (3) are hinged to each other. A central pressure rod (4) is provided below the lower end of the connector (3), and a side pressure rod (5) is provided at one end of the first rotating arm (1) and the second rotating arm (2). The central pressure rod (4) is used to squeeze the middle end of the outer side of the pressure ring (6), and the two sets of side pressure rods (5) are used to squeeze the two ends of the inner side of the pressure ring (6).
2. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The middle pressure rod (4) and the side pressure rod (5) are used to insert into the inner side of the straight connector (7). The inner side of the straight connector (7) is provided with a pressure ring groove (8). The middle pressure rod (4) and the side pressure rod (5) are used to send the pressure ring (6) into the pressure ring groove (8).
3. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The two sets of joints (3) are rotatably connected by a hinge shaft (9).
4. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The outer sides of the first rotating arm (1) and the second rotating arm (2) are covered with rubber, and the outer side of the rubber is provided with anti-slip texture.
5. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The outer side of the pressure bar (4) is provided with scale lines (10), and the scale lines (10) are used to indicate the length data of the pressure bar (4).
6. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The bottom of the lower connector (3) and one end of the bottom of the first rotating arm (1) and the second rotating arm (2) are provided with internal thread grooves. The upper part of the outer side of the middle pressure rod (4) and the side pressure rod (5) are provided with external threads (11). The middle pressure rod (4) and the side pressure rod (5) are fixed to the internal thread grooves by the external threads (11).
7. The anti-misinstallation alignment mechanism for the oil pipe straight connector and pressure ring according to claim 1, characterized in that: The middle pressure rod (4) and the side pressure rod (5) are of the same length, and the outer sides of the middle pressure rod (4) and the side pressure rod (5) are smooth surfaces.