Quick mounting structure for high-pressure wellhead sealing steel ring

Abstract

The utility model relates to the technical field of petroleum and natural gas extraction equipment, and discloses a quick mounting structure for a high-pressure wellhead sealing steel ring. Comprising a well mouth body, a sliding groove is formed in the surface of the well mouth body, a surface plate is fixedly connected to the surface of the well mouth body, two semicircular blocks are fixedly connected to the surface of the surface plate, round rods are fixedly connected to the sides, close to each other, of the semicircular blocks, and rotating blocks are rotationally connected to the arc surfaces of the round rods; the size of the trapezoid block fixing groove is matched with the size of the sliding rod. The quick mounting structure for the high-pressure wellhead sealing steel ring is provided. As a traditional sealing steel ring body fixing mode mostly adopts screws to install a sealing steel ring body in a well mouth body, when the sealing steel ring body is installed, tools such as a screwdriver are needed for tightening and fixing, the operation process is tedious, time and energy are consumed, the screws are prone to slipping in the repeated disassembly and assembly process during disassembly, and the sealing steel ring body is not easy to deform. And the maintenance cost and difficulty are increased.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas extraction equipment technology, and in particular to a quick-installation structure for a high-pressure wellhead sealing steel ring. Background Technology

[0002] In the process of oil and gas extraction, the sealing performance of high-pressure wellheads is crucial. As a key component to ensure wellhead sealing, the ease of installation and replacement of sealing steel rings directly affects the efficiency and cost of extraction operations.

[0003] Currently, traditional methods of fixing sealing steel rings mostly involve using screws to install the sealing steel rings into the wellhead body. When installing the sealing steel rings, tools such as screwdrivers are required to tighten them, which is a cumbersome process that consumes a lot of time and effort. During disassembly, the screws are prone to stripping during repeated disassembly and reassembly, which not only increases maintenance costs but also increases maintenance difficulty, seriously affecting the normal operation of mining and the service life of equipment. Therefore, there is a need for a structure that can enable quick disassembly, installation, and replacement of sealing steel rings.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: Because the traditional method of fixing the sealing steel ring body mostly uses screws to install the sealing steel ring body into the wellhead body, when installing the sealing steel ring body, it is necessary to use tools such as screwdrivers to tighten and fix it. The operation process is cumbersome, time-consuming and labor-intensive. During disassembly, the screws are prone to stripping during repeated disassembly and assembly, which increases the maintenance cost and difficulty. Utility Model Content

[0005] The technical problem this utility model aims to solve is that the existing technology has the disadvantage that the traditional method of fixing the sealing steel ring body is to install the sealing steel ring body into the wellhead body with screws. When installing the sealing steel ring body, tools such as screwdrivers are required to tighten and fix it. The operation process is cumbersome, time-consuming and labor-intensive. During disassembly, the screws are prone to stripping during repeated disassembly and assembly, which increases the maintenance cost and difficulty. To this end, we propose a quick installation structure for high-pressure wellhead sealing steel rings.

[0006] To achieve the above objectives, this application adopts the following technical solution: a quick-installation structure for a high-pressure wellhead sealing steel ring, comprising a wellhead body, a sliding groove on the surface of the wellhead body, a flat plate fixedly connected to the surface of the wellhead body, two semicircular blocks fixedly connected to the surface of the flat plate, a round rod fixedly connected to one side of the semicircular blocks that is close to each other, a rotating block rotatably connected to the arc surface of the round rod, a round plate fixedly connected to the surface of the rotating block, a trapezoidal block fixedly connected to the arc surface of the round plate, a placement groove fixedly connected to the arc surface of the wellhead body, a sliding rod slidably inserted into the surface of the placement groove, an elliptical block fixedly connected to one end of the sliding rod, a fixing groove on the surface of the trapezoidal block, a sealing steel ring body slidably connected to the inner wall of the sliding groove of the wellhead body, and the size of the fixing groove of the trapezoidal block being adapted to the size of the sliding rod.

[0007] Preferably, a torsion spring is fitted onto the arc surface of the round rod, and the two ends of the torsion spring are fixedly connected to the semicircular block and the rotating block, respectively.

[0008] Preferably, a rubber pad is fixedly connected to the arc surface of the sealing steel ring body, and the size of the wellhead body groove is adapted to the size of the rubber pad.

[0009] Preferably, a spring is fitted onto the arc surface of the slide rod, and the two ends of the spring are fixedly connected to the elliptical block and the placement groove, respectively.

[0010] Preferably, the surface of the circular plate is provided with a sliding hole, and a transparent plate is fixedly connected to the inner wall of the sliding hole.

[0011] Preferably, two vertical blocks are fixedly connected to the surface of the circular plate, and a fixing plate is fixedly connected to the surface of each vertical block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model achieves the effect of quick disassembly and replacement of the sealing steel ring body, avoiding the need for installation or disassembly. Traditional sealing steel ring body fixing methods often use screws to install the sealing steel ring body into the wellhead body. When installing the sealing steel ring body, it is necessary to use screwdrivers and other tools to tighten and fix it. The operation process is cumbersome, time-consuming and labor-intensive. During disassembly, the screws are prone to stripping during repeated disassembly and assembly, which increases maintenance costs and difficulty. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the planar plate structure in this utility model;

[0017] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0018] Figure 4 In this utility model Figure 2 Enlarged view of point B;

[0019] Figure 5 This is a schematic diagram of the structure of the sealing steel ring body in this utility model.

[0020] Legend: 1. Wellhead body; 2. Flat plate; 3. Semicircular block; 4. Round rod; 5. Rotating block; 6. Round plate; 7. Trapezoidal block; 8. Placement groove; 9. Sliding rod; 10. Elliptical block; 11. Torsion spring; 12. Rubber pad; 13. Spring; 14. Transparent plate; 15. Vertical block; 16. Fixing plate; 17. Sealing steel ring body. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Reference Figure 1-5As shown, this utility model provides a technical solution: a quick-installation structure for a high-pressure wellhead sealing steel ring, including a wellhead body 1. A sliding groove is formed on the surface of the wellhead body 1. A flat plate 2 is fixedly connected to the surface of the wellhead body 1. Two semi-circular blocks 3 are fixedly connected to the surface of the flat plate 2. A round rod 4 is fixedly connected to one side of the semi-circular blocks 3 that is close to each other. A rotating block 5 is rotatably connected to the arc surface of the round rod 4. A round plate 6 is fixedly connected to the surface of the rotating block 5. A trapezoidal block 7 is fixedly connected to the arc surface of the round plate 6. A placement groove 8 is fixedly connected to the arc surface of the wellhead body 1. A sliding rod 9 is slidably inserted into the surface of the placement groove 8. One end of the sliding rod 9 is fixedly connected to... Elliptical block 10 and trapezoidal block 7 have fixing grooves on their surfaces. A sealing steel ring body 17 is slidably connected to the inner wall of the sliding groove of the wellhead body 1. The size of the fixing groove of the trapezoidal block 7 matches the size of the sliding rod 9, achieving quick disassembly and replacement of the sealing steel ring body 17. This avoids the need for traditional methods of fixing the sealing steel ring body 17 by screws inside the wellhead body 1, which requires screwdrivers and other tools for tightening during installation. This process is cumbersome, time-consuming, and labor-intensive. Furthermore, the screws are prone to stripping during repeated disassembly and reassembly, increasing the risk of damage. With the added maintenance costs and difficulty, a torsion spring 11 is fitted onto the arc surface of the round rod 4. The two ends of the torsion spring 11 are fixedly connected to the semicircular block 3 and the rotating block 5, respectively. Through the cooperation of the torsion spring 11, the semicircular block 3, and the rotating block 5, the round plate 6 can be automatically opened due to the torsion of the torsion spring 11 itself. A rubber pad 12 is fixedly connected to the arc surface of the sealing steel ring body 17. The size of the slide groove of the wellhead body 1 matches the size of the rubber pad 12. Through the cooperation of the rubber pad 12 and the sealing steel ring body 17, wear and collision damage to the sealing steel ring body 17 can be prevented. A spring 13 is fitted onto the arc surface of the slide rod 9. The two ends of the spring 13 are... The elliptical block 10 and the placement groove 8 are fixedly connected. With the cooperation of the spring 13, the elliptical block 10 and the placement groove 8, the slide rod 9 can quickly return to its original position when the elliptical block 10 is released due to the elastic force of the spring 13 itself. The surface of the circular plate 6 is provided with a sliding hole. A transparent plate 14 is fixedly connected to the inner wall of the sliding hole of the circular plate 6. With the cooperation of the sliding hole of the circular plate 6 and the transparent plate 14, it is convenient for the staff to observe whether the sealing steel ring body 17 is damaged. Two upright blocks 15 are fixedly connected to the surface of the circular plate 6. A fixing plate 16 is fixedly connected to the surface of the upright blocks 15. With the cooperation of the upright blocks 15 and the fixing plate 16, it is convenient for the staff to pull or press the circular plate 6.

[0023] Working principle: When the operator wants to open the circular plate 6 to install the sealing steel ring body 17, the operator pulls the elliptical block 10. The elliptical block 10 drives the sliding rod 9 to slide. At this time, the spring 13 is in a stretched state, and the sliding rod 9 slides in the placement groove 8. The sliding rod 9 moves away from the fixed groove of the trapezoidal block 7. Due to the torsion force of the torsion spring 11, the torsion spring 11 drives the rotating block 5 to rotate. The rotating block 5 drives the circular plate 6 to rotate. The circular plate 6 drives the transparent plate 14 to move. The circular plate 6 drives the vertical block 15 to rotate. The vertical block 15 drives the fixed plate 16 to rotate. The rotating block 5 rotates on the arc surface of the circular rod 4. The circular plate 6 drives... The trapezoidal block 7 rotates away from the inner wall of the placement groove 8, allowing the operator to open the circular plate 6 and achieve quick disassembly and replacement of the sealing steel ring body 17. This avoids the cumbersome, time-consuming, and labor-intensive process of installing the sealing steel ring body 17 in the wellhead body 1 using screws, which requires screwdrivers and other tools to tighten the screws during installation. Furthermore, the screws are prone to stripping during repeated disassembly and reassembly, increasing maintenance costs and difficulty.

[0024] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A quick-installation structure for a high-pressure wellhead sealing steel ring, characterized in that, The wellhead body (1) includes a sliding groove on its surface. A flat plate (2) is fixedly connected to the surface of the wellhead body (1). Two semi-circular blocks (3) are fixedly connected to the surface of the flat plate (2). A round rod (4) is fixedly connected to one side of the semi-circular blocks (3) that are close to each other. A rotating block (5) is rotatably connected to the arc surface of the round rod (4). A round plate (6) is fixedly connected to the surface of the rotating block (5). A trapezoidal block (7) is fixedly connected to the arc surface of the round plate (6). A placement groove (8) is fixedly connected to the arc surface of the wellhead body (1). A sliding rod (9) is slidably inserted into the surface of the placement groove (8). An elliptical block (10) is fixedly connected to one end of the sliding rod (9). A fixing groove is opened on the surface of the trapezoidal block (7). A sealing steel ring body (17) is slidably connected to the inner wall of the sliding groove of the wellhead body (1). The size of the fixing groove of the trapezoidal block (7) is adapted to the size of the sliding rod (9).

2. The quick-installation structure for a high-pressure wellhead sealing steel ring according to claim 1, characterized in that: The circular rod (4) has a torsion spring (11) fitted on its arc surface. The two ends of the torsion spring (11) are fixedly connected to the semicircular block (3) and the rotating block (5), respectively.

3. The quick-installation structure for a high-pressure wellhead sealing steel ring according to claim 1, characterized in that: The arc surface of the sealing steel ring body (17) is fixedly connected to a rubber pad (12), and the size of the groove of the wellhead body (1) is adapted to the size of the rubber pad (12).

4. The quick-installation structure for a high-pressure wellhead sealing steel ring according to claim 1, characterized in that: The arc surface of the slide bar (9) is fitted with a spring (13), and the two ends of the spring (13) are fixedly connected to the elliptical block (10) and the placement groove (8) respectively.

5. The quick-installation structure for a high-pressure wellhead sealing steel ring according to claim 1, characterized in that: The circular plate (6) has a sliding hole on its surface, and a transparent plate (14) is fixedly connected to the inner wall of the sliding hole.

6. The quick-installation structure for a high-pressure wellhead sealing steel ring according to claim 1, characterized in that: Two vertical blocks (15) are fixedly connected to the surface of the circular plate (6), and a fixing plate (16) is fixedly connected to the surface of the vertical blocks (15).

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