Pressurized sealing clamp for pipeline leakage working condition

Abstract

The under-pressure sealing clamp used for the pipeline leakage working condition comprises a supporting bottom plate, the front side of the upper end face of the supporting bottom plate is rotationally connected with an adjusting screw rod through a bearing seat in a supporting mode, the outer curved face of the middle of the adjusting screw rod is in threaded connection with a moving block, and first connecting columns are fixedly installed on the two sides of the moving block; the outer top end of the first connecting column is movably connected with a first sliding groove used for conducting linear sliding limiting on the first connecting column in an attached mode, the outer curved surfaces of the two side ends of the first connecting column are rotationally connected with first supporting arms through rotating shafts, and the inner sides of the upper top ends of the first supporting arms are rotationally connected with supporting top plates through pin shafts. Second sliding grooves are formed in the two sides of the front end of the supporting top plate in a penetrating mode, and a second supporting arm is rotationally connected to the rear side of the upper end of the supporting bottom plate through a bearing seat in a supporting mode. The pipeline leakage point is clamped and sealed under the pressure state, and meanwhile the clamping position can be adjusted up and down conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline engineering, in particular to a pressure sealing clamp used in pipeline leakage conditions. Background Art

[0002] Pipeline engineering refers to the engineering field of designing, constructing, operating and maintaining various types of pipeline systems, mainly used to build pipelines for transporting oil, natural gas and solid slurries. Specifically, it includes pipeline line engineering, station engineering and pipeline ancillary engineering.

[0003] In pipeline transportation systems, pipeline leakage often occurs due to pipeline aging, corrosion, external force damage, etc. Traditional repair methods usually require interrupting pipeline transportation for disassembly, replacement or repair, which not only affects the transportation efficiency, but also may cause resource waste and environmental pollution. Therefore, it is of great practical value to develop a clamp that can seal the leakage point under pressure. Utility Model Content

[0004] The purpose of the utility model is to provide a pressurized sealing clamp for pipeline leakage conditions, so as to solve the problem proposed in the above background technology that pipeline leakage often occurs in pipeline transportation systems due to pipeline aging, corrosion, external force damage, etc., and traditional repair methods usually require interruption of pipeline transportation for disassembly, replacement or repair, which not only affects the transportation efficiency, but also may cause waste of resources and environmental pollution.

[0005] The cam is provided with a first end fixedly mounted on the support frame, and the second end is provided with a second end fixedly mounted on the support frame, and the second end is provided with a second end fixedly mounted on the support frame.

[0006] The cam is provided with an L-shaped support rod, and the L-shaped support rod has an L-shaped support rod at its upper end and an L-shaped support rod at its lower end.

[0007] Preferably, a first turning handle for rotating the adjusting screw is fixedly installed on the front top of the adjusting screw, and the bottom of the first sliding groove is fixedly installed on both sides of the upper end of the supporting base plate.

[0008] Preferably, the middle portion of the first support arm and the middle portion of the second support arm are rotatably connected to each other via a pin shaft, and the outer curved surfaces on both sides of the second connection are movably connected to the inner wall of the second slide groove.

[0009] Preferably, there are two limit sliding rods, which are symmetrically distributed on the outer side walls of the front and rear ends of the clamping base plate.

[0010] Preferably, a sealing cap is threadedly connected to the opening of the outer end of the inflation port, and the inner side of the inflation port is communicated with the sealing airbag.

[0011] Preferably, the outer curved threads on both side ends of the clamping screw face opposite directions, a second handle for rotating the clamping screw is fixedly installed on the top end of the clamping screw, and the outer curved threads on the top end of the clamping screw are connected to a fastening nut for locking and fastening the clamping screw.

[0012] Preferably, there are two sliders, which are symmetrically distributed on the outer curved surfaces of both side ends of the clamping screw, the outer side of the lower end of the slider is fitted and connected to the inner wall of the limiting straight sliding platform, and the top end of the slider is fixedly installed in the middle of the bottom of the L-shaped sliding base.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the arc-shaped clamping platform of the utility model clamps and seals the pipeline, the upper and lower ends of the inner side of the arc-shaped clamping platform can be sealed by the flexible sealing strip, and at the same time, the inflation port is opened. When the inflation port is opened, the air pump is used to inflate the inside of the inflation port. When the air pump is used to inflate the inside of the inflation port, the gas generated by the air pump will enter the sealing airbag through the inflation port, so that the sealing airbag is expanded. When the sealing airbag is expanded, the outer surface of the pipeline clamped and sealed by the arc-shaped clamping platform can be pressed and sealed, thereby achieving the effect of clamping and sealing the leakage point of the pipeline under pressure;

[0015] 2. The utility model also drives the moving block to move forward and backward due to the force generated by the threaded connection with the outer curved surface in the middle part of the adjusting screw when the adjusting screw is rotated. When the moving block moves forward and backward, it drives the first connecting column to move straightly forward and backward along the inner wall of the first slide groove. When the first connecting column moves straightly forward and backward, it drives the lower end of the first support arm to swing forward and backward. When the lower end of the first support arm swings forward and backward, it drives the upper end of the first support arm to cooperate with the upper end of the second support arm to push the supporting top plate to move up and down. When the supporting top plate moves up and down, it synchronously drives the upper and lower position adjustment of the arc-shaped clamping platform, thereby achieving clamping and sealing of the pipeline leakage point under pressure, and facilitating the up and down adjustment of the clamping position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the pressurized sealing fixture used in pipeline leakage conditions is shown in the following figure. Figure 1 ;

[0017] Figure 2 The overall structure of the pressurized sealing fixture used in pipeline leakage conditions is shown in the following figure. Figure 2 ;

[0018] Figure 3 The overall structure of the pressurized sealing fixture used in pipeline leakage conditions is shown in the following figure. Figure 3 .

[0019] In the figure: 1. Support base plate; 2. Adjusting screw; 3. Moving block; 4. First connecting column; 5. First slide groove; 6. First supporting arm; 7. Support top plate; 8. Second supporting arm; 9. Second connecting column; 10. Clamping base plate; 11. Limiting slide rod; 12. L-shaped sliding base; 13. Arc clamping table; 14. Flexible sealing strip; 15. Installation cavity; 16. Sealing airbag; 17. Inflation port; 18. Limiting straight slide table; 19. Clamping screw; 20. Sliding block; 21. Second slide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: it includes a supporting base plate 1, the front side of the upper end face of the supporting base plate 1 is rotatably connected with an adjusting screw 2 through a bearing seat support, and the front top of the adjusting screw 2 is fixedly installed with a first turning handle for rotating the adjusting screw 2, the outer curved surface of the middle part of the adjusting screw 2 is threadedly connected with a moving block 3, and the two sides of the moving block 3 are fixedly installed with a first connecting column 4, the outer top of the first connecting column 4 is movably connected with a first sliding groove 5 for linear sliding limiting of the first connecting column 4, and the bottom of the first sliding groove 5 is fixedly installed on both sides of the upper end of the supporting base plate 1 The outer curved surfaces on both sides of the first connecting column 4 are rotatably connected to the first supporting arm 6 through a rotating shaft, and the inner side of the upper top of the first supporting arm 6 is rotatably connected to the supporting top plate 7 through a pin shaft, and the front ends of the supporting top plate 7 are penetrated with second slide grooves 21, and the rear side of the upper end of the supporting bottom plate 1 is rotatably connected to the second supporting arm 8 through a bearing seat, and the middle part of the first supporting arm 6 and the middle part of the second supporting arm 8 are rotatably connected to each other through a pin shaft, and the upper top of the second supporting arm 8 is rotatably connected to the second connecting column 9 through a rotating shaft, and the outer curved surfaces on both sides of the second connecting column 9 are fitted and movably connected to the inner wall of the second slide groove 21;

[0022] A clamping base plate 10 is fixedly installed on the upper end surface of the supporting base plate 1. The outer side walls of the front and rear ends of the clamping base plate 10 are supported and rotatably connected to a limited sliding rod 11 through a bearing seat. There are two limited sliding rods 11, which are symmetrically distributed on the outer side walls of the front and rear ends of the clamping base plate 10. The outer curved surfaces on both sides of the limited sliding rod 11 are movably connected with an L-shaped sliding base 12. An arc-shaped clamping platform 13 for clamping and sealing the pipeline is fixedly installed on the inner side of the upper end of the L-shaped sliding base 12. A flexible sealing strip 14 is respectively inlaid and fixedly installed on the upper and lower ends of the inner side of the arc-shaped clamping platform 13. An installation cavity 15 is opened on the inner wall of the arc-shaped clamping platform 13. A sealing airbag 16 is fixedly installed on the inner wall of the installation cavity 15. An inflation port 17 is fixedly installed on the outer side wall of the rear end of the arc-shaped clamping platform 13, and a sealing airbag 16 is threadedly connected at the opening at the outer end of the inflation port 17. The sealing cap and the inner side of the inflation port 17 are connected with the sealing airbag 16, and a limited straight slide 18 is fixedly installed in the middle of the upper end surface of the clamping base plate 10. A clamping screw 19 is rotatably connected to the limited straight slide 18 through a rotating shaft in the middle of the limited straight slide 18, and the outer curved threads on both sides of the clamping screw 19 are in opposite directions. A second turning handle for rotating the clamping screw 19 is fixedly installed on the top end of the clamping screw 19, and a fastening nut for locking and fastening the clamping screw 19 is threadedly connected to the outer curved surface of the top end of the clamping screw 19. Sliders 20 are threadedly connected to the outer curved surfaces of both sides of the clamping screw 19, and there are two slides 20, which are symmetrically distributed with the outer curved surfaces of the two sides of the clamping screw 19. The outer side of the lower end of the slide 20 is fitted and connected to the inner wall of the limited straight slide 18, and the upper top of the slide 20 is fixedly installed in the middle of the bottom of the L-shaped sliding base 12.

[0023] Working principle: When in use, the utility model loosens and releases the fastening nut by rotating. When the fastening nut is loosened, the clamping screw 19 is driven to rotate through the second turning handle. When the clamping screw 19 rotates, the slider 20 is driven to move linearly inward along the inner wall of the limit straight slide 18 due to the force generated by the threaded connection with the outer curved surfaces on both sides of the clamping screw 19. When the slider 20 moves linearly inward synchronously, it drives the L-shaped sliding base 12 to move linearly inward along the outer curved surfaces on both sides of the limit slide 11. When the L-shaped sliding base 12 moves linearly inward synchronously, it drives the arc-shaped clamping platform 13 to clamp and seal the pipeline. When the arc-shaped clamping When the platform 13 clamps and seals the pipeline, the flexible sealing strip 14 can seal the joints of the upper and lower ends of the inner side of the arc-shaped clamping platform 13, and at the same time, the inflation port 17 is opened. When the inflation port 17 is opened, the air is inflated into the inflation port 17 by using an air pump. When the air is inflated into the inflation port 17 by using an air pump, the gas generated by the air pump will enter the sealing airbag 16 through the inflation port 17, so that the sealing airbag 16 is expanded. When the sealing airbag 16 is expanded, the outer surface of the pipeline clamped and sealed by the arc-shaped clamping platform 13 can be pressed and sealed, thereby achieving the effect of clamping and sealing the pipeline leakage point under pressure.

[0024] At the same time, the adjusting screw 2 is driven to rotate by the first turning handle. When the adjusting screw 2 rotates, the moving block 3 will be driven to move forward and backward due to the force generated by the threaded connection with the outer curved surface in the middle part of the adjusting screw 2. When the moving block 3 moves forward and backward, it will drive the first connecting column 4 to move straightly forward and backward along the inner wall of the first slide groove 5. When the first connecting column 4 moves straightly forward and backward, it will drive the lower end of the first support arm 6 to swing forward and backward. When the lower end of the first support arm 6 swings forward and backward, it will drive the upper end of the first support arm 6 to cooperate with the upper end of the second support arm 8 to push the support top plate 7 up and down. When the support top plate 7 moves up and down, it will synchronously drive the arc-shaped clamping platform 13 to adjust its up and down position, thereby achieving clamping and sealing of the pipeline leakage point under pressure, and facilitating the up and down adjustment of the clamping position.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure sealing fixture for pipeline leakage conditions, characterized by: The invention comprises a support base plate (1), wherein the front side of the upper end face of the support base plate (1) is rotatably connected to an adjusting screw rod (2) through a bearing seat, the outer curved surface of the middle part of the adjusting screw rod (2) is threadedly connected to a moving block (3), first connecting columns (4) are fixedly installed on both sides of the moving block (3), the outer top end of the first connecting column (4) is movably connected with a first slide groove (5) for linearly sliding and limiting the first connecting column (4), the outer curved surfaces of both side ends of the first connecting column (4) are rotatably connected to a first supporting arm (6) through a rotating shaft, the inner side of the upper top end of the first supporting arm (6) is rotatably connected to a supporting top plate (7) through a pin shaft, and second slide grooves (21) are penetrated on both sides of the front end of the supporting top plate (7), the rear side of the upper end of the support base plate (1) is rotatably connected to a second supporting arm (8) through a bearing seat, and the upper top end of the second supporting arm (8) is rotatably connected to a second connecting column (9) through a rotating shaft; The upper end surface of the support base plate (1) is fixedly provided with a clamping base plate (10), and the outer side walls of the front and rear ends of the clamping base plate (10) are rotatably connected to a limit slide bar (11) through a bearing seat support, and the outer curved surfaces on both sides of the limit slide bar (11) are movably connected with an L-shaped sliding base (12), and the inner side of the upper end of the L-shaped sliding base (12) is fixedly provided with an arc-shaped clamping platform (13) for clamping and sealing the pipeline, and the upper and lower ends of the inner side of the arc-shaped clamping platform (13) are respectively inlaid and fixedly provided with flexible sealing strips (14 ), the inner wall of the arc-shaped clamping platform (13) is provided with an installation cavity (15), the inner wall of the installation cavity (15) is fixedly provided with a sealing airbag (16), the outer wall of the rear end of the arc-shaped clamping platform (13) is penetrated and fixedly provided with an inflation port (17), the middle part of the upper end surface of the clamping base plate (10) is fixedly provided with a limited position straight slide (18), the middle part of the limited position straight slide (18) is rotatably connected with a clamping screw (19) through a rotating shaft, and the outer curved surfaces of both sides of the clamping screw (19) are threadedly connected with sliders (20).

2. A pressurized sealing fixture for pipeline leakage conditions according to claim 1, characterized in that: A first turning handle for rotating the adjusting screw (2) is fixedly mounted on the front top of the adjusting screw (2), and the bottom of the first sliding groove (5) is fixedly mounted on both sides of the upper end of the supporting base plate (1).

3. A pressurized sealing fixture for pipeline leakage conditions according to claim 2, characterized in that: The middle portion of the first support arm (6) and the middle portion of the second support arm (8) are rotatably connected to each other via a pin shaft, and the outer curved surfaces on both sides of the second connecting column (9) are movably connected to the inner wall of the second slide groove (21).

4. A pressurized sealing fixture for pipeline leakage conditions according to claim 3, characterized in that: There are two limit sliding rods (11), which are symmetrically distributed on the outer side walls of the front and rear ends of the clamping base plate (10).

5. A pressurized sealing fixture for pipeline leakage conditions according to claim 4, characterized in that: A sealing cap is threadedly connected to the outer opening of the inflation port (17), and the inner side of the inflation port (17) is communicated with the sealing airbag (16).

6. A pressurized sealing fixture for pipeline leakage conditions according to claim 5, characterized in that: The outer curved threads on both side ends of the clamping screw (19) face in opposite directions, a second turning handle for rotating the clamping screw (19) is fixedly installed on the top end of the clamping screw (19), and a fastening nut for locking and fastening the clamping screw (19) is connected to the outer curved thread on the top end of the clamping screw (19).

7. A pressurized sealing fixture for pipeline leakage conditions according to claim 6, characterized in that: There are two sliders (20), which are symmetrically distributed on the outer curved surfaces of both sides of the clamping screw (19). The outer sides of the lower ends of the sliders (20) are closely connected to the inner wall of the limiting straight slide (18), and the upper top of the sliders (20) is fixedly installed in the middle of the bottom of the L-shaped sliding base (12).

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