Pipeline plugging structure with good sealing effect

Abstract

The utility model provides a pipeline plugging structure with a good sealing effect, which comprises a pipeline, a conical inserting block, a support rod, a lifting ring, a threaded ring, a supportable sealing fixed block structure, an adjustable pushing support frame structure and an expandable sealing ring pipe structure, and the conical inserting block is inserted into the right end of the pipeline; a supporting rod is in threaded connection with the interior of the right end of the conical inserting block. The first annular fixing pipe, the rubber sealing bag, the second annular fixing pipe, a supporting block, a supporting column, a sealing leather cup, a first U-shaped frame, a connecting rod, a second U-shaped frame, a movable ring, a first U-shaped seat and a pushing rod are arranged in a matched mode, so that a threaded ring can be rotated easily in the using process, and then the movable ring is pushed to move; and in the pushing process, the rubber sealing bag is supported to make contact with the inner wall of the pipeline, and the purpose of multi-stage sealing is conveniently achieved through cooperation of the rubber sealing bag and the sealing leather cup in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline sealing equipment, and in particular relates to a pipeline sealing structure with good sealing effect. Background Art

[0002] Plug-type plugging can block high and medium pressure oil and gas pipelines with good sealing effect and wide applicability. It is a preferred construction technology for pressure plugging operations of oil and gas pipelines. The existing pipeline plugging structure has unsatisfactory sealing effect during use and cannot perform multiple seals during the sealing process. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pipeline sealing structure with good sealing effect. By setting a multi-stage sealing mechanism during use, it is convenient to improve the sealing effect during the sealing process and set a sealing support mechanism during the sealing process to prevent leakage during the sealing process.

[0004] A pipeline sealing structure with good sealing effect comprises a pipeline, wherein a conical plug-in block is inserted into the right end of the pipeline; a support rod is threadedly connected to the right end of the conical plug-in block; a lifting ring is bolted to the right end of the support rod; a threaded ring is threadedly connected to the outer wall of the support rod, and is characterized in that a supportable sealing fixing block structure is arranged at the left end of the conical plug-in block; an adjustable pushing support frame structure is arranged on the left side of the outer wall of the support rod; an expandable sealing ring tube structure is arranged at the connection between the supportable sealing fixing block structure and the adjustable pushing support frame structure.

[0005] Preferably, the supportable sealing fixed block structure includes a support block, wherein the upper and lower ends of the support block are respectively threadedly connected to one end of a support column; the left end of the support block is glued to the middle position on the right side of the sealing leather cup; the right end top and right end bottom of the support block are respectively bolted to a first U-shaped frame; the right end internal pin shaft of the first U-shaped frame is connected to a connecting rod; the right side of the inner wall of the connecting rod is bolted to a second U-shaped frame.

[0006] Preferably, the adjustable pushing support frame structure includes a moving ring, and the left upper part and the left bottom part of the moving ring are respectively bolted with a first U-shaped seat; the left end of the first U-shaped seat is respectively pin-connected with a pushing rod; the middle position of the inner wall of the pushing rod is respectively bolted with a second U-shaped seat; the inside of the second U-shaped seat is respectively pin-connected with one end of a reinforcement rod; the other end of the reinforcement rod is respectively pin-connected to the inside of the upper end of the third U-shaped seat; the third U-shaped seat is respectively bolted to the middle position of the upper and lower ends of the support fixing tube.

[0007] Preferably, the expandable sealing ring tube structure includes a first annular fixing tube, which is connected to the second annular fixing tube through a rubber sealing bag and is connected to the first annular fixing tube; the upper right part of the second annular fixing tube is threadedly connected to an inflation tube; the lower left part of the second annular fixing tube is threadedly connected to a pressure relief tube.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] In the utility model, the first annular fixed tube, rubber sealing bag, second annular fixed tube, support block, support column, sealing leather cup, first U-shaped frame, connecting rod, second U-shaped frame, movable ring, first U-shaped seat and pushing rod are arranged to cooperate with each other, which is conducive to rotating the threaded ring during use, and then pushing the movable ring to move, and supporting the rubber sealing bag to contact the inner wall of the pipe during the pushing process, so as to facilitate the purpose of multi-stage sealing through the cooperation of the rubber sealing bag and the sealing leather cup during use.

[0010] In the utility model, the arrangement of the pipe, the support block, the support column and the sealing leather cup is conducive to rotating the support column during use, and then allowing the support column to support the sealing leather cup, which is convenient for supporting work during the sealing process and prevents leakage during sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the supporting sealing fixed block structure of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the adjustable push support frame structure of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the expandable sealing ring tube structure of the utility model.

[0015] In the figure:

[0016] 1. Pipe; 2. Conical plug-in block; 3. Support rod; 4. Lifting ring; 5. Threaded ring; 6. Supportable sealing fixed block structure; 61. Support block; 62. Support column; 63. Sealing leather cup; 64. First U-shaped frame; 65. Connecting rod; 66. Second U-shaped frame; 7. Adjustable push support frame structure; 71. Moving ring; 72. First U-shaped seat; 73. Push rod; 74. Second U-shaped seat; 75. Reinforcement rod; 76. Third U-shaped seat; 77. Support fixed tube; 8. Expandable sealing ring tube structure; 81. First annular fixed tube; 82. Rubber sealing bag; 83. Second annular fixed tube; 84. Inflatable tube; 85. Pressure relief tube. DETAILED DESCRIPTION

[0017] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a pipeline sealing structure with good sealing effect includes a pipeline 1, a conical plug-in block 2, a support rod 3, a lifting ring 4, a threaded ring 5, a supportable sealing fixed block structure 6, an adjustable pushing support frame structure 7 and an expandable sealing ring tube structure 8. The right end of the pipeline 1 is internally plugged with a conical plug-in block 2; the right end of the conical plug-in block 2 is internally threadedly connected to the support rod 3; the right end of the support rod 3 is bolted with a lifting ring 4; the outer wall of the support rod 3 is threadedly connected with a threaded ring 5; the left end of the conical plug-in block 2 is provided with a supportable sealing fixed block structure 6; the left side of the outer wall of the support rod 3 is provided with an adjustable pushing support frame structure 7; the joint of the supportable sealing fixed block structure 6 and the adjustable pushing support frame structure 7 is provided with an expandable sealing ring tube structure 8; the supportable sealing The fixed block structure 6 includes a support block 61, a support column 62, a sealing leather cup 63, a first U-shaped frame 64, a connecting rod 65 and a second U-shaped frame 66, wherein the upper and lower ends of the support block 61 are respectively threadedly connected with one end of the support column 62; the left end of the support block 61 is glued to the middle position on the right side of the sealing leather cup 63; the top and bottom of the right end of the support block 61 are respectively bolted with the first U-shaped frame 64; the right end of the first U-shaped frame 64 is internally pin-connected with the connecting rod 65; the right side of the inner wall of the connecting rod 65 is bolted with the second U-shaped frame 66; when in use, the conical plug-in block 2 is inserted into the right end of the pipe 1, and the support block 61 and the sealing leather cup 63 are inserted into the right end of the pipe 1, and then the outer wall of the sealing leather cup 63 contacts the inner wall of the pipe 1 to achieve sealing.

[0018] In this embodiment, combined with the Figure 3As shown, the adjustable pushing support frame structure 7 includes a moving ring 71, a first U-shaped seat 72, a pushing rod 73, a second U-shaped seat 74, a reinforcing rod 75, a third U-shaped seat 76 and a supporting fixed tube 77. The first U-shaped seat 72 is bolted to the upper left part and the left bottom of the moving ring 71; the pushing rod 73 is pin-connected to the left end of the first U-shaped seat 72; the second U-shaped seat 74 is bolted to the middle position of the inner wall of the pushing rod 73; the second U-shaped seat 74 is pin-connected to one end of the reinforcing rod 75; the other end of the reinforcing rod 75 is pin-connected to the upper end of the third U-shaped seat 76; the third U-shaped seat 76 is bolted to the middle position of the upper and lower ends of the supporting fixed tube 77; after fixing the sealing leather cup 63, rotate the threaded ring 5, and push the moving ring 71 to move to the left during the rotation, and then push it through the pushing rod 73 to achieve the purpose of supporting the sealing mechanism.

[0019] In this embodiment, combined with the Figure 4 As shown, the expandable sealing ring tube structure 8 includes a first annular fixed tube 81, a rubber sealing bag 82, a second annular fixed tube 83, an inflation tube 84 and a pressure relief tube 85. The first annular fixed tube 81 is connected to the second annular fixed tube 83 through the rubber sealing bag 82 and connected; the upper right part of the second annular fixed tube 83 is threadedly connected with the inflation tube 84; the lower left part of the second annular fixed tube 83 is threadedly connected with the pressure relief tube 85; and in the process of adjusting and pushing, the first annular fixed tube 81 and the second annular fixed tube 83 are moved outward, and then inflated through the inflation tube 84, and then the rubber sealing bag 82 is expanded, and contacts the inner wall of the pipeline 1 during the expansion process, and the silicone pad arranged on the right side of the outer wall of the push support block 61 contacts the inner wall of the pipeline 1, to achieve multi-stage sealing, thereby completing the sealing work.

[0020] In this embodiment, specifically, the tapered plug-in block 2 is a tapered stainless steel block; the support rod 3 is a stainless steel threaded rod.

[0021] In the present embodiment, specifically, the other end of the support column 62 is arranged in contact with the inner wall of the sealing leather cup 63; and the outer wall of the connecting rod 65 is glued with an annular silicone pad.

[0022] In this embodiment, specifically, the left end of the tapered plug-in block 2 is bolted to the middle position of the right side of the support block 61 ; the left end of the silicone pad provided on the outer wall of the connecting rod 65 is glued to the right side of the outer wall of the tapered plug-in block 2 .

[0023] In this embodiment, specifically, the reinforcing rod 75 is disposed between the pushing rod 73 and the supporting fixing tube 77; the pushing rod 73 and the reinforcing rod 75 are respectively made of stainless steel rods.

[0024] In this embodiment, specifically, the movable ring 71 is slidably sleeved on the left side of the middle position of the outer wall of the support rod 3; the support fixing tube 77 is bolted to the left end outer wall of the support rod 3; the left end pin shaft of the push rod 73 is connected to the inside of the upper end of the second U-shaped frame 66.

[0025] In this embodiment, specifically, the inflation tube 84 is an L-shaped stainless steel tube with a one-way valve fixed inside; the pressure relief tube 85 is an inverted L-shaped stainless steel tube with a manual valve inserted into the internal thread.

[0026] In the present embodiment, specifically, the first annular fixing tube 81 is bolted to the right side of the outer wall of the connecting rod 65 ; the second annular fixing tube 83 is bolted to the left side of the outer wall of the pushing rod 73 .

[0027] How it works

[0028] In the utility model, when in use, the conical plug-in block 2 is inserted into the right end of the pipe 1, and the support block 61 and the sealing leather cup 63 are inserted into the right end of the pipe 1, and then the outer wall of the sealing leather cup 63 contacts the inner wall of the pipe 1 to achieve sealing. After fixing the sealing leather cup 63, the threaded ring 5 is rotated, and the movable ring 71 is pushed to the left during the rotation, and then the pushing rod 73 is used to push the sealing mechanism to achieve the purpose of supporting the sealing mechanism. In the process of adjusting the pushing, the first annular fixed tube 81 and the second annular fixed tube 83 are moved outward, and then the inflation tube 84 is used to inflate, and then the rubber sealing bag 82 is expanded, and contacts the inner wall of the pipe 1 during the expansion process, and the silicone pad set on the right side of the outer wall of the support block 61 is pushed to contact the inner wall of the pipe 1 to achieve multi-stage sealing, thereby completing the sealing.

[0029] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A pipeline plugging structure with good sealing effect, comprising a pipeline (1), wherein a conical plug-in block (2) is inserted into the right end of the pipeline (1); a support rod (3) is threadedly connected to the right end of the conical plug-in block (2); a lifting ring (4) is bolted to the right end of the support rod (3); a threaded ring (5) is threadedly connected to the outer wall of the support rod (3); characterized in that: The left end of the conical plug-in block (2) in the pipeline plugging structure with good sealing effect is provided with a supportable sealing fixed block structure (6); the left side of the outer wall of the support rod (3) is provided with an adjustable push support frame structure (7); and the connection between the supportable sealing fixed block structure (6) and the adjustable push support frame structure (7) is provided with an expandable sealing ring tube structure (8).

2. The pipeline sealing structure with good sealing effect as claimed in claim 1, characterized in that: The supportable sealing fixed block structure (6) comprises a support block (61), wherein the upper and lower ends of the support block (61) are respectively internally threadedly connected with one end of a support column (62); the left end of the support block (61) is glued to the middle position on the right side of the sealing leather cup (63); the right end top and right end bottom of the support block (61) are respectively bolted with a first U-shaped frame (64); the right end internal pin shaft of the first U-shaped frame (64) is connected with a connecting rod (65); the right side of the inner wall of the connecting rod (65) is bolted with a second U-shaped frame (66).

3. The pipeline sealing structure with good sealing effect as claimed in claim 1, characterized in that: The adjustable pushing support frame structure (7) comprises a moving ring (71), and a first U-shaped seat (72) is bolted to the upper left side and the bottom left side of the moving ring (71); a pushing rod (73) is pin-connected to the left end of the first U-shaped seat (72); a second U-shaped seat (74) is bolted to the middle position of the inner wall of the pushing rod (73); one end of a reinforcing rod (75) is pin-connected to the inside of the second U-shaped seat (74); the other end of the reinforcing rod (75) is pin-connected to the inside of the upper end of a third U-shaped seat (76); the third U-shaped seat (76) is bolted to the middle position of the upper and lower ends of the supporting fixed tube (77).

4. The pipeline sealing structure with good sealing effect as claimed in claim 1, characterized in that: The expandable sealing ring tube structure (8) comprises a first ring-shaped fixed tube (81), wherein the first ring-shaped fixed tube (81) is connected to a second ring-shaped fixed tube (83) via a rubber sealing bag (82) and is arranged in communication; an inflation tube (84) is threadedly connected to the upper right side of the second ring-shaped fixed tube (83); and a pressure relief tube (85) is threadedly connected to the lower left side of the second ring-shaped fixed tube (83).

5. The pipeline sealing structure with good sealing effect as claimed in claim 2, characterized in that: The left end of the conical plug-in block (2) is bolted to the middle position of the right side of the support block (61); the left end of the silicone pad arranged on the outer wall of the connecting rod (65) is glued to the right side of the outer wall of the conical plug-in block (2).

6. The pipeline sealing structure with good sealing effect as claimed in claim 3, characterized in that: The movable ring (71) is slidably sleeved on the left side of the middle position of the outer wall of the support rod (3); the support fixing tube (77) is bolted to the outer wall of the left end of the support rod (3).

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