Special-shaped high-pressure sealing element for subsea pipe clamp

Abstract

The special-shaped high-pressure sealing piece comprises a pipe clamp which is of a semicircular tubular structure, rotating grooves are formed in the two ends of the pipe clamp respectively, gradual change grooves are formed in the inner walls of the rotating grooves, and sealing connecting frames are rotationally arranged in the rotating grooves. A first assembling block is fixedly arranged on one side edge of the pipe clamp, a second assembling block is fixedly arranged on the other side edge of the pipe clamp, a connecting block is fixedly arranged on the first assembling block, and a connecting groove is formed in the position, opposite to the connecting block, of the second assembling block. The connecting blocks and the connecting grooves are arranged on the two splicing blocks correspondingly, so that splicing connection of two same pipe clamps can be achieved, the sealing connecting frames are rotationally arranged in the rotating grooves in the ends of the pipe clamps, and after the two pipe clamps are spliced and the connecting blocks are matched with the connecting grooves, the sealing connecting frames can be sealed. The two pipe clamps can be connected and the ends of the two spliced pipe clamps can be sealed by rotating the sealing connecting frame, the high-pressure sealing performance of the sealing piece is improved, and the installation difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of plugging leaks in submarine pipelines, in particular to a special-shaped high-pressure sealing component for submarine pipeline clamps. Background Art

[0002] In offshore oil production, the oil pipeline will be corroded and damaged due to long service life and force majeure. In view of this, considering the difficulty and high cost of replacing the entire offshore pipeline at sea, sea pipe plugging clamps are used in practical applications to preventively protect the sea pipe. However, most of the existing sea pipe clamp structures use semi-cylindrical rubber seals, which have good sealing performance but insufficient high-pressure capability.

[0003] Therefore, we need to design a special-shaped high-pressure seal for subsea pipeline clamps to solve these problems. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a special-shaped high-pressure sealing component for a sea pipe clamp.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A special-shaped high-pressure seal for a sea pipe clamp comprises a pipe clamp, the pipe clamp is a semicircular tubular structure, a rotation groove is respectively arranged at both ends of the pipe clamp, a gradient groove is arranged on the inner wall of the rotation groove, and a sealing connection frame is rotatably arranged in the rotation groove, a first assembling block is fixedly arranged on one side of the pipe clamp and a second assembling block is fixedly arranged on the other side, a connecting block is fixedly arranged on the first assembling block, and a connecting groove is arranged on the second assembling block at a position opposite to the connecting block;

[0007] The sealing connecting frame includes a rotating frame, a linkage groove, a sealing rubber plate, a push plate, a linkage block and a push column. The linkage groove is opened on the inner wall of the rotating frame. The linkage block and the sealing rubber ring are detachably arranged in the rotating frame. The linkage block and the push column are both arranged on the push plate, and the linkage block matches the linkage groove. When the push plate is located in the rotating groove, the free end of the push column is located in the gradient groove.

[0008] Preferably, the gradient groove is arc-shaped and its depth gradually increases in the clockwise direction.

[0009] With such arrangement, the push plate can be pushed to squeeze the sealing rubber ring through the change of the depth of the gradual groove, so that the pipe clamp and the pipeline are sealed.

[0010] Preferably, a limiting column is fixedly provided on the connecting block, and a limiting hole is provided on the wall of the connecting groove, and the free end of the limiting column will be inserted into the limiting hole when the connecting block and the connecting groove cooperate with each other.

[0011] Such an arrangement can achieve connection and reinforcement.

[0012] Preferably, the first assembling block and the second assembling block are both provided with sealing strips and bolt holes, the bolt holes on the first assembling block are located at one side of the connecting block, and the bolt holes on the second assembling block are opened on the side wall of the connecting groove.

[0013] Such a setting can be used to strengthen the connection.

[0014] Preferably, a slot is further provided on the second assembling block, the slot is communicated with the connecting slot, and a stopper is slidably inserted into the slot, a through hole is penetrated through the stopper, when the connecting block and the connecting slot cooperate with each other, the stopper will be inserted into the connecting slot through the slot and fit with the connecting block, and the through hole is coaxial with the bolt hole on the first assembling block and the bolt hole on the second assembling block respectively.

[0015] By configuring in this way, the position of the connection block can be limited and fixed by the cooperation of the bolt hole and the through hole.

[0016] Preferably, the sealing rubber ring is a hollow semicircular ring structure and is made of rubber.

[0017] Such an arrangement facilitates deformation after being subjected to force, thereby achieving mutual extrusion and fit with the pipe wall.

[0018] Preferably, the length of the push pin does not exceed the maximum depth of the gradient groove.

[0019] Such an arrangement can ensure that the push post can be fully inserted into the gradient groove when the push plate rotates to the maximum depth along the gradient groove.

[0020] Preferably, a handle is fixedly provided on the rotating frame, and the handle extends from the two ends of the pipe clamps after being assembled.

[0021] Such arrangement facilitates transportation and rotation of the installed rotating frame.

[0022] The advantages and positive effects of the utility model are:

[0023] The utility model can realize the splicing connection of two identical pipe clamps by respectively arranging a connecting block and a connecting groove on two assembling blocks, and can realize the splicing connection of two identical pipe clamps by rotatably arranging a sealing connecting frame in the rotating groove at the end of the pipe clamp. After the two pipe clamps are spliced ​​and the connecting block cooperates with the connecting groove, the sealing connecting frame can be rotated to realize the connection of the two pipe clamps and the sealing of the ends of the two spliced ​​pipe clamps, thereby improving the high-pressure sealing performance of the seal and reducing the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is an axonometric schematic diagram of the overall structure of the utility model after assembly;

[0026] Figure 2 It is a schematic diagram of the position and structure of the connection block and the connection groove of the utility model;

[0027] Figure 3 This is a schematic diagram of the exploded structure of the sealing connection frame of the utility model. Figure 1 ;

[0028] Figure 4 This is a schematic diagram of the exploded structure of the sealing connection frame of the utility model. Figure 2 .

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Pipe clamp; 2. Rotating groove; 3. Gradient groove; 4. Connecting block; 5. Limiting column; 6. Connecting groove; 7. Limiting hole; 8. Block; 9. Through hole; 10. Rotating frame; 11. Linking groove; 12. Sealing rubber ring; 13. Push plate; 14. Linking block; 15. Push column; 16. Handle; 17. Bolt hole; 18. First assembly block; 19. Second assembly block; 20. Slot; 21. Sealing strip. DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] The utility model is further described below in conjunction with the accompanying drawings:

[0034] Example 1: Figure 1-Figure 4 As shown, a special-shaped high-pressure seal for a sea pipe clamp includes a pipe clamp 1, which is a semicircular tubular structure, with rotation grooves 2 respectively arranged at both ends of the pipe clamp 1, a gradient groove 3 arranged on the inner wall of the rotation groove 2, and a sealing connection frame rotatably arranged in the rotation groove 2, a first assembling block 18 is fixedly arranged on one side of the pipe clamp 1 and a second assembling block 19 is fixedly arranged on the other side, a connecting block 4 is fixedly arranged on the first assembling block 18, and a connecting groove 6 is arranged on the second assembling block 19 at a position opposite to the connecting block 4;

[0035] The sealing connection frame includes a rotating frame 10, a linkage groove 11, a sealing rubber plate, a push plate 13, a linkage block 14 and a push column 15. The linkage groove 11 is opened on the inner wall of the rotating frame 10. The linkage block 14 and the sealing rubber ring 12 are detachably arranged in the rotating frame 10. The linkage block 14 and the push column 15 are both arranged on the push plate 13, and the linkage block 14 matches the linkage groove 11. When the push plate 13 is located in the rotating groove 2, the free end of the push column 15 is located in the gradient groove 3.

[0036] Specifically, the gradient groove 3 is arc-shaped and gradually deepens in the clockwise direction. The change in the depth of the gradient groove 3 can push the push plate 13 to squeeze the sealing rubber ring 12, so that the pipe clamp 1 forms a seal with the pipeline.

[0037] Specifically, a limiting column 5 is fixedly provided on the connecting block 4, and a limiting hole 7 is provided on the wall of the connecting groove 6. When the connecting block 4 and the connecting groove 6 cooperate with each other, the free end of the limiting column 5 will be inserted into the limiting hole 7. Such a setting can achieve connection and reinforcement.

[0038] Specifically, the first assembling block 18 and the second assembling block 19 are both provided with a sealing strip 21 and a bolt hole 17. The bolt hole 17 on the first assembling block 18 is located on one side of the connecting block 4, and the bolt hole 17 on the second assembling block 19 is opened on the side wall of the connecting groove 6. Such a setting can further reinforce the connection of the pipe clamp 1.

[0039] Specifically, a slot 20 is also provided on the second assembling block 19, and the slot 20 is connected to the connecting groove 6, and a stopper 8 is slidably inserted into the slot 20, and a through hole 9 is provided through the stopper 8. When the connecting block 4 and the connecting groove 6 cooperate with each other, the stopper 8 will be inserted into the connecting groove 6 through the slot 20 and fit with the connecting block 4. The through hole 9 is coaxial with the bolt hole 17 on the first assembling block 18 and the bolt hole 17 on the second assembling block 19, respectively. Such a setting can limit the position of the connecting block 4 and fix it by the cooperation of the bolt hole 17 and the through hole 9.

[0040] Specifically, the sealing rubber ring 12 is a hollow semicircular ring structure and is made of rubber. This configuration facilitates deformation after being subjected to force, thereby achieving mutual extrusion and fit with the pipe wall.

[0041] Specifically, the length of the push post 15 does not exceed the maximum depth of the gradient groove 3. Such a configuration can ensure that the push post 15 can be fully inserted into the gradient groove 3 when the push plate 13 rotates along the gradient groove 3 to the maximum depth.

[0042] Specifically, a handle 16 is fixedly provided on the rotating frame 10 , and the handle 16 extends from the ends of the two assembled pipe clamps 1 . Such a configuration is convenient for carrying and rotating the installed rotating frame 10 .

[0043] Working process of this embodiment: When using this device to plug pipeline leaks, it is necessary to buckle the two pipe clamps 1 on the pipelines next to the leaking point respectively, and then insert the connecting block 4 into the connecting groove 6, and then push the pipe clamp 1 radially to insert the limiting column 5 on the connecting block 4 into the limiting hole 7 in the connecting groove 6, and then insert the stopper 8 into the connecting groove 6 through the slot 20, and then pass the bolts through the bolt holes 17 and the through holes 9, and then fix them, and push the two assembled pipe clamps 1 to move to the leaking point. At this time, the liquid leaked from the leaking point may flow out from both ends of the pipe clamps 1. At this time, the rotating frame 10 is rotated ninety degrees by the handle 16. While rotating, the push column 15 will cooperate with the gradient groove 3 to push the push plate 13 to move along the axial direction of the pipeline, squeezing the sealing rubber ring 12. After the sealing rubber ring 12 is squeezed, the sealing rubber ring 12 will expand radially. After the sealing rubber ring 12 expands radially, it will fit with the outer wall of the pipeline to form a seal to prevent.

[0044] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A special-shaped high-pressure seal for a subsea pipeline clamp, characterized in that: The invention comprises a pipe clamp (1), wherein the pipe clamp (1) is a semicircular tubular structure, wherein rotation grooves (2) are respectively arranged at both ends of the pipe clamp (1), wherein a gradient groove (3) is arranged on the inner wall of the rotation groove (2), and a sealing connection frame is rotatably arranged in the rotation groove (2), wherein a first assembly block (18) is fixedly arranged on one side of the pipe clamp (1) and a second assembly block (19) is fixedly arranged on the other side, wherein a connection block (4) is fixedly arranged on the first assembly block (18), and a connection groove (6) is arranged on the second assembly block (19) at a position opposite to the connection block (4); The sealing connection frame comprises a rotating frame (10), a linkage groove (11), a sealing rubber plate, a push plate (13), a linkage block (14) and a push column (15); the linkage groove (11) is arranged on the inner wall of the rotating frame (10); the linkage block (14) and the sealing rubber ring (12) are detachably arranged in the rotating frame (10); the linkage block (14) and the push column (15) are both arranged on the push plate (13); the linkage block (14) matches the linkage groove (11); when the push plate (13) is located in the rotating groove (2), the free end of the push column (15) is located in the gradient groove (3).

2. A special-shaped high-pressure seal for a sea pipe clamp according to claim 1, characterized in that: The gradual groove (3) is arc-shaped and its depth gradually increases in the clockwise direction.

3. A special-shaped high-pressure seal for a sea pipe clamp according to claim 1, characterized in that: A limiting column (5) is fixedly arranged on the connection block (4), and a limiting hole (7) is arranged on the wall of the connection groove (6); when the connection block (4) and the connection groove (6) cooperate with each other, the free end of the limiting column (5) will be inserted into the limiting hole (7).

4. A special-shaped high-pressure seal for a sea pipe clamp according to claim 1, characterized in that: The first assembling block (18) and the second assembling block (19) are both provided with sealing strips (21) and bolt holes (17); the bolt holes (17) on the first assembling block (18) are located on one side of the connecting block (4), and the bolt holes (17) on the second assembling block (19) are opened on the side wall of the connecting groove (6).

5. A special-shaped high-pressure seal for a sea pipe clamp according to claim 4, characterized in that: The second assembly block (19) is also provided with a slot (20), the slot (20) being connected to the connecting groove (6), and a stopper (8) being slidably inserted into the slot (20), and a through hole (9) being penetrated through the stopper (8), when the connecting block (4) and the connecting groove (6) are matched with each other, the stopper (8) will be inserted into the connecting groove (6) through the slot (20) and fit with the connecting block (4), and the through hole (9) is coaxial with the bolt hole (17) on the first assembly block (18) and the bolt hole (17) on the second assembly block (19), respectively.

6. The special-shaped high-pressure seal for a subsea pipe clamp according to claim 1, characterized in that: The sealing rubber ring (12) is a hollow semicircular ring structure and is made of rubber.

7. The special-shaped high-pressure seal for a subsea pipe clamp according to claim 1, characterized in that: The length of the push column (15) does not exceed the maximum depth of the gradient groove (3).

8. The special-shaped high-pressure seal for a subsea pipe clamp according to claim 1, characterized in that: A handle (16) is also fixedly provided on the rotating frame (10), and the handle (16) extends from the ends of the two pipe clamps (1) after being assembled.

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