Emergency leak-stopping clamp for gas pipeline

Abstract

The invention discloses an emergency leak-stopping clamp for a gas pipeline, comprising a tubular fixed handle, an L-shaped hinged seat is provided at the lower end of the fixed handle, a bracket is provided at the end of the hinged seat, a mounting through hole is provided in the middle of the bracket, a drainage tube is provided in the mounting through hole, a control valve is provided at the upper end of the drainage tube, and the control valve is connected to the diversion hose; a fixed clamping claw is provided at the bottom of the bracket, and a movable clamping claw is hinged at the bottom of the bracket; a connecting pipe is provided at the lower end of the drainage tube, a saddle-shaped cover is provided at the bottom of the connecting pipe, a diversion hole communicating with the connecting pipe is provided in the middle of the saddle-shaped cover, a sealing gasket is provided on the inner wall of the saddle-shaped cover, an L-shaped rocker arm is hinged at the bending part of the hinged seat, the end of the rocker arm is hinged with the middle part of the movable clamping claw, and a spring is provided between the upper section of the rocker arm and the upper section of the hinged seat; an extended handle is hinged at the bending part of the rocker arm, a connecting seat is provided at the upper end of the fixed handle, a fixed connecting plate is hinged between the upper end of the extended handle and the connecting seat, a positioning pin is provided at the upper end of the fixed connecting plate, and a limiting device that pushes against the positioning pin is provided on the connecting seat.

Description

Technical Field

[0001] The invention relates to an emergency leak-stopping clamp for a gas pipeline. Background Art

[0002] Most urban gas pipelines are buried underground, but municipal construction often damages gas pipelines. Once a gas pipeline leaks, the existing treatment method is to either close the main valve and wait for maintenance, which takes a long time and will cause gas supply interruption, greatly affecting the lives of citizens; or, if the leakage is not large and does not pose a danger, allow the gas to be discharged into the air to maintain gas supply, but this method poses a safety hazard. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an emergency leak-stopping clamp for a gas pipeline.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an emergency leak-stopping clamp for a gas pipeline, comprising a tubular fixed handle, an L-shaped hinged seat is provided at the lower end of the fixed handle, an inverted U-shaped bracket is provided at the end of the hinged seat, a mounting through hole is provided in the middle of the bracket, a drainage pipe is provided in the mounting through hole, a control valve is provided at the upper end of the drainage pipe, and the control valve is connected to the diversion hose; a fixed clamp is provided at the bottom of the bracket, and a movable clamp is also hinged at the bottom of the bracket; a connecting pipe is provided at the lower end of the drainage pipe, a saddle-shaped cover matching the outer diameter of the gas pipeline is provided at the bottom of the connecting pipe, a diversion hole communicating with the connecting pipe is provided in the middle of the saddle-shaped cover, a sealing gasket is provided on the inner wall of the saddle-shaped cover, and an avoidance hole matching the diversion hole is provided in the middle of the sealing gasket; the inner side of the claw end of the fixed clamp is in a shape matching the outside of the gas pipeline and is provided with a plurality of anti-slip teeth; the movable clamp The inner side of the claw end is in a shape that matches the outside of the gas pipeline and is provided with a number of anti-slip teeth; the bending part of the hinge seat is hinged with an L-shaped rocker arm, and the end of the rocker arm is hinged with the middle part of the movable clamping claw; an extended handle is hinged at the bending part of the rocker arm, and a connecting seat is provided at the upper end of the fixed handle, and a fixed connecting plate is hinged between the upper end of the extended handle and the connecting seat, and a positioning pin is provided at the upper end of the fixed connecting plate, and a positioning groove is provided on the connecting seat for the positioning pin to slide along the length direction of the fixed handle, and the positioning pin is movably engaged in the positioning groove, and a limiting device that pushes against the positioning pin is provided on the connecting seat. The extended handle is rotated toward the direction of the fixed handle so that the hinge point between the extended handle and the fixed connecting plate passes over the connecting line position of the three hinge points on the extended handle and the fixed connecting plate, so that the movable clamping claw is in a locked state, and a spring that is in a stretched state when the movable clamping claw is in a locked state is provided between the upper section of the rocker arm and the upper section of the hinge seat.

[0005] As a preferred solution, the limiting device is an adjusting bolt that pushes against the positioning pin and is arranged on the groove wall of the positioning groove on the connecting seat away from the end of the fixed connecting plate.

[0006] As a preferred solution, a force-applying handle is hingedly connected to the upper end of the extended handle for pressing the fixed connecting plate toward the fixed handle to unlock the movable clamping claw.

[0007] As a preferred solution, a pressing protrusion matching with the force applying handle is provided on the side of the fixed connecting plate facing the force applying handle.

[0008] As a preferred solution, a protective sleeve with a U-shaped cross-section for accommodating the force-applying handle is provided at the upper end of the extended handle at the lower part of the force-applying handle, and the upper end of the force-applying handle extends out of the protective sleeve.

[0009] As a preferred solution, an adjusting nut is rotatably provided in the connecting seat and cooperates with the adjusting bolt to drive the adjusting bolt to move.

[0010] As a preferred solution, the connecting seat is provided with a handle for the operator to hold.

[0011] As a preferred solution, the connecting seat is covered with a plastic shell.

[0012] The beneficial effects of the present invention are:

[0013] When the gas pipeline is slightly damaged, the leak-proof clamp is used to clamp the gas pipeline, and the leaked gas is discharged through the drainage pipe for collection to avoid potential safety hazards.

[0014] Since a sealing gasket is provided on the inner wall of the saddle-shaped cover, the sealing effect of the leak-proof clamp can be ensured so that the leaked gas can be discharged through the drainage pipe; since the inner side of the claw end of the fixed clamp is in a shape that matches the outer side of the gas pipeline and is provided with a plurality of anti-slip teeth; the inner side of the claw end of the movable clamp is in a shape that matches the outer side of the gas pipeline and is provided with a plurality of anti-slip teeth, the leak-proof clamp can reliably clamp the gas pipeline;

[0015] Since a locating pin is provided at the upper end of the fixed connecting plate, the locating pin is movably clamped in a locating groove provided on the connecting seat along the length direction of the fixed handle, an adjusting bolt for pushing the locating pin is provided on the groove wall of the locating groove on the connecting seat away from the end of the fixed connecting plate. When the leak-proof clamp clamps the gas pipeline and can completely discharge the leaked gas, the locating pin can be pushed tight by adjusting the adjusting bolt, and the locking angle of the movable clamping jaw can be adjusted, thereby making the locking more secure. The leak-proof clamp can also be adjusted to be suitable for gas pipelines of different specifications.

[0016] Since a force-applying handle for pressing the fixed connecting plate toward the fixed handle is hingedly connected to the upper end of the extended handle, the leak-stopping clamp is more convenient to open.

[0017] Since a protective sleeve with a U-shaped cross section for accommodating the force applying handle is provided at the upper end of the extended handle below the force applying handle, the upper end of the force applying handle extends out of the protective sleeve to avoid accidental touching of the force applying handle and causing the leak-stopping clamp to loosen.

[0018] Since an adjusting nut which matches with the adjusting bolt and drives the adjusting bolt to move is rotatably arranged in the connecting seat, the rotation adjustment of the adjusting bolt is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the connecting seat and other parts in the present invention.

[0021] Figure 1 to Figure 2 Middle: 1. Fixed handle, 2. Articulated seat, 3. Bracket, 4. Drainage tube, 5. Control valve, 6. Fixed jaw, 7. Movable jaw; 8. Connecting pipe, 9. Saddle cover, 10. Sealing pad, 11. Anti-slip teeth; 12. Rocker arm, 13. Spring; 14. Extended handle, 15. Connecting seat, 16. Fixed connecting plate, 17. Locating pin, 18. Adjusting bolt, 19. Adjusting nut, 20. Force handle, 21. Protective cover, 22. Handle, 23. Plastic shell. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-2As shown, an emergency leak-stopping clamp for a gas pipeline comprises a tubular fixed handle 1, an L-shaped hinge seat 2 is provided at the lower end of the fixed handle 1, an inverted U-shaped bracket 3 is provided at the end of the hinge seat 2, a mounting through hole is provided in the middle of the bracket 3, a drainage pipe 4 is provided in the mounting through hole, a control valve 5 is provided at the upper end of the drainage pipe 4, and the control valve 5 is connected to the diversion hose; a fixed clamping claw 6 is provided at the bottom of the bracket 3, and a movable clamping claw 7 is also hinged at the bottom of the bracket 3; a connecting pipe 8 is provided at the lower end of the drainage pipe 4, a saddle-shaped cover 9 matching the outer diameter of the gas pipeline is provided at the bottom of the connecting pipe 8, a diversion hole intersecting the connecting pipe 8 is provided in the middle of the saddle-shaped cover 9, a sealing gasket 10 is provided on the inner wall of the saddle-shaped cover 9, and an avoidance hole matching the diversion hole is provided in the middle of the sealing gasket 10; the inner side of the claw end of the fixed clamping claw 6 is in a shape matching the outer part of the gas pipeline and is provided with a plurality of anti-slip teeth 11; the inner side of the claw end of the movable clamping claw 7 is in a shape matching the outer part of the gas pipeline and is provided with a plurality of anti-slip teeth 11; A plurality of anti-slip teeth 11 are provided on it; an L-shaped rocker arm 12 is hingedly connected to the bending portion of the articulated seat 2, and the end of the rocker arm 12 is hingedly connected to the middle portion of the movable clamping claw 7, and a spring 13 is provided between the upper section of the rocker arm 12 and the upper section of the articulated seat 2 to make the movable clamping claw 7 in a stretched state when it is in a locked state; an extension handle 14 is hingedly connected to the bending portion of the rocker arm 12, and a connecting seat 15 is provided at the upper end of the fixed handle 1, and a fixed connecting plate 16 is hingedly connected between the upper end of the extension handle 14 and the connecting seat 15, and a positioning pin 17 is provided at the upper end of the fixed connecting plate, and a positioning groove for the positioning pin 17 to slide along the length direction of the fixed handle 1 is provided on the connecting seat 15, and the positioning pin 17 is movably engaged in the positioning groove, and a limiting device for pushing the positioning pin 17 is provided on the connecting seat 15, and the extension handle 14 is rotated toward the fixed handle 1 so that the hinge point between the extension handle 14 and the fixed connecting plate 16 passes over the connecting line position of the three hinge points on the extension handle 14 and the fixed connecting plate 16, so that the movable clamping claw 7 is in a locked state.

[0024] The limiting device is an adjusting bolt 18 which is arranged on the groove wall of the positioning groove on the connecting seat 15 at one end away from the fixed connecting plate 16 and pushes against the positioning pin 17 .

[0025] The upper end of the extension handle 14 is hinged with a force-applying handle 20 for pressing the fixed connecting plate 16 toward the fixed handle 1 to unlock the movable clamping jaw 7. The upper end of the extension handle 14 is provided with a protective cover 21 with a U-shaped cross section for accommodating the force-applying handle 20 at the lower part of the force-applying handle 20, and the upper end of the force-applying handle 20 extends out of the protective cover 21. A handle 22 for the operator to hold is provided on the connecting seat 15. The connecting seat 15 is covered with a plastic shell 23.

[0026] When in use, the extension handle 14 is turned inward to open the movable jaw 7, the leak-proof clamp is placed at the leaking part of the pipeline, the extension handle 14 is pulled outward to clamp the movable jaw 7 to the gas pipeline, and the adjusting nut 19 is turned to make the adjusting bolt 18 push the positioning pin 17 to ensure that the movable jaw 7 will not loosen until the gas pipeline is repaired. After the leak-proof clamp is used, the adjusting nut 19 is loosened, the extension handle 14 is turned inward (the extension handle 14 can be driven to rotate by turning the force-applying handle 20 to press the fixed connecting plate) to loosen the movable jaw 7, and the leak-proof clamp is removed from the gas pipeline.

[0027] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. An emergency leak-stopping clamp for a gas pipeline, characterized in that: It comprises a tubular fixed handle, an L-shaped hinge seat is arranged at the lower end of the fixed handle, an inverted U-shaped bracket is arranged at the end of the hinge seat, a mounting through hole is arranged in the middle of the bracket, a drainage tube is arranged in the mounting through hole, a control valve is arranged at the upper end of the drainage tube, and the control valve is connected to the diversion hose; a fixed clamp is arranged at the bottom of the bracket, and a movable clamp is also hinged at the bottom of the bracket; a connecting pipe is arranged at the lower end of the drainage tube, a saddle-shaped cover matching the outer diameter of the gas pipeline is arranged at the bottom of the connecting pipe, a diversion hole intersecting the connecting pipe is arranged in the middle of the saddle-shaped cover, a sealing gasket is arranged on the inner wall of the saddle-shaped cover, and an avoidance hole matching the diversion hole is arranged in the middle of the sealing gasket; the inner side of the claw end of the fixed clamp is in a shape matching the outer side of the gas pipeline and is provided with a plurality of anti-slip teeth; the inner side of the claw end of the movable clamp is in a shape matching the outer side of the gas pipeline The hinge is shaped and has a plurality of anti-slip teeth on it; the bending part of the hinge seat is hinged with an L-shaped rocker arm, and the end of the rocker arm is hinged with the middle part of the movable clamping claw; an extended handle is hinged at the bending part of the rocker arm, and a connecting seat is provided at the upper end of the fixed handle; a fixed connecting plate is hinged between the upper end of the extended handle and the connecting seat, and a positioning pin is provided at the upper end of the fixed connecting plate; a positioning groove for the positioning pin to slide along the length direction of the fixed handle is provided on the connecting seat, and the positioning pin is movably engaged in the positioning groove; a limiting device for pushing the positioning pin is provided on the connecting seat, and the extended handle is rotated toward the fixed handle so that the hinge point between the extended handle and the fixed connecting plate passes through the connecting line position of the three hinge points on the extended handle and the fixed connecting plate, so that the movable clamping claw is in a locked state, and a spring in a stretched state when the movable clamping claw is in a locked state is provided between the upper section of the rocker arm and the upper section of the hinge seat.

2. The emergency leak-stopping clamp for a gas pipeline according to claim 1, characterized in that: The limiting device is an adjusting bolt that pushes against the positioning pin and is arranged on the groove wall of the positioning groove on the connecting seat away from the end of the fixed connecting plate.

3. The emergency leak-stopping clamp for a gas pipeline according to claim 1, characterized in that: The upper end of the extended handle is hinged with a force applying handle for pressing the fixed connecting plate toward the fixed handle to unlock the movable clamping claw.

4. An emergency leak-stopping clamp for a gas pipeline as claimed in claim 3, characterized in that: A pressing protrusion matching with the force applying handle is provided on the side of the fixed connecting plate facing the force applying handle.

5. The emergency leak-stopping clamp for gas pipeline according to claim 3, characterized in that: The upper end of the extended handle is provided with a protective cover with a U-shaped cross section for accommodating the force applying handle at the lower part of the force applying handle, and the upper end of the force applying handle extends out of the protective cover.

6. The emergency leak-stopping clamp for a gas pipeline according to claim 2, characterized in that: An adjusting nut which matches with the adjusting bolt and drives the adjusting bolt to move is rotatably arranged in the connecting seat.

7. An emergency leak-stopping clamp for a gas pipeline according to any one of claims 1 to 6, characterized in that: The connecting seat is provided with a handle for the operator to hold.

8. An emergency leak-stopping clamp for a gas pipeline as claimed in claim 7, characterized in that: The connecting seat is covered with a plastic shell.

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