Gas pipeline plugging device

Abstract

The utility model relates to a gas pipeline plugging device. A vertically-through screw hole is formed in a fixed seat, a connecting groove is formed in the upper end of a movable seat, a bearing is connected into the connecting groove, a lead screw is connected with the screw hole in a matched mode and penetrates through the screw hole, and the bottom of the lead screw is connected into an inner ring of the bearing. The left end and the right end of the movable base are movably connected into the long holes in the two clamping plates respectively, clamping heads are arranged at the bottom ends of the clamping plates, a pressing head is arranged at the bottom of the movable base, and the pressing head and the two clamping heads are distributed in a three-legged mode and connected in an abutting mode. The movable seat is pressed downwards through screwing of the lead screw, the clamping plates at the left end and the right end are driven to be folded and clamped, the gas pipeline is clamped through three points, the two plugging devices are clamped at the left end and the right end of a gas leakage point, gas in the gas pipeline is forced not to circulate, then the gas leakage point at the position is repaired and replaced, pipeline gas emptying is not needed, and the gas leakage point can be repaired and replaced conveniently. And the operation time of repairing or replacing can also be saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipe plugging, and in particular relates to a gas pipeline plugging device. Background Art

[0002] At present, the laying of gas pipes has entered thousands of households. In addition to the iron gas pipes outdoors for long-distance transportation and maintaining the pressure in the pipes, after entering the room, they are generally installed with gas meters and then enter the water heater or gas stove through soft pipes for gas access and use. However, the service life of soft pipes is relatively poor, and they are prone to aging and perforation and gas leakage under the sun and wind. The common method of repairing and replacing gas pipelines is to directly cut off the gas source, exhaust the gas in the gas pipeline, and then repair or replace it. However, this solution is only applicable to very short pipelines. If it is a long pipe or even a large number of pipes, cutting off the gas source and exhausting the air will cause huge waste and take a long time, affecting people's normal life. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a gas pipeline plugger, which presses down the movable seat by twisting the screw rod, and drives the clamping plates at the left and right ends to be clamped, and is clamped on the gas pipeline through three points. The two pluggers are clamped on the left and right ends of the leaking point, forcing the gas in the gas pipe to stop flowing, and then the leaking point at that position is repaired or replaced. There is no need to empty the pipeline gas, and the operation time for repair or replacement can also be saved.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A gas pipeline plugger comprises a fixed seat, a movable seat, a screw rod and two groups of clamping plates, the fixed seat is provided with a screw hole which passes through from top to bottom, the upper end of the movable seat is provided with a connecting groove, a bearing is connected in the connecting groove, the screw rod is matched and connected and passes through the screw hole, the bottom of the screw rod is connected in the inner ring of the bearing, a handle is provided on the upper end surface of the screw rod, the upper ends of the two groups of clamping plates are respectively rotatably connected to the left and right ends of the fixed seat, the left and right ends of the movable seat are respectively movably connected in the long holes on the two groups of clamping plates, the bottom end of the clamping plate is provided with a chuck, the bottom of the movable seat is provided with a pressure head, the pressure head and the two groups of clamps are distributed in a tripod manner, and the pressure head and the two groups of clamps can be abutted and connected.

[0006] The pressure head has a triangular structure, and the tip of the pressure head points to the center of the tripod distribution; the chuck is detachably connected to a top column, the chuck is provided with a threaded hole, a stud is fitted in the threaded hole, the end of the stud can be abutted and connected to the top column, the top column has a triangular structure, a limiting column is provided on the top column, the chuck is provided with a limiting hole, the limiting column is fitted in the limiting hole, the limiting column and the limiting hole include at least two groups, the tip of the top column points to the center of the triangular distribution, and the pressure head and two groups of top columns are abuttably connected through the tips.

[0007] The gas pipeline plugger adopts this structure, and the screw rod is passed through the screw hole. The bottom end of the screw rod is connected to the bearing in the connecting groove on the movable seat. Therefore, in the process of turning the handle, the screw rod will push the movable seat downward, and the upper ends of the two sets of splints can be rotatably connected to the left and right ends of the fixed seat respectively, and the left and right ends of the movable seat can be movably connected to the long holes on the two sets of splints respectively, so the pushed movable seat will move downward in the long space. Due to the setting of the bearing, the movable seat will remain relatively parallel to the fixed seat, and the axial intersection of the long holes on the two sets of splints is gathered between the fixed seat and the movable seat. Therefore, the long holes on the splints are inclined downward and outward, and when the movable seat moves downward. The movable seat gradually moves downward to press the long hole. The upper end of the splint is restricted on the fixed seat, so the clamp at the lower end of the splint will be pushed toward the middle by the movable seat, and the pressure head on the movable seat will also move downward until it abuts against the clamp. In order to clamp the gas pipe with the three-legged pressure head and the two groups of clamps during the retraction process, the pressure head is set to a triangular structure, and a detachable top column is connected to the clamp. The top column also has a triangular structure. The pressure head and the two groups of top columns are abutted through sharp points. Therefore, when the pressure head and the top column are pressed on the gas pipe, they will apply pressure to the gas pipe from three points, clamp the gas pipe and deform it, thereby restricting the flow of gas in the gas pipe.

[0008] However, during the three-point clamping process, it is very likely that the gas pipe cannot be completely pressed together and a slight gas leakage may occur. Therefore, the top column is fitted into the limiting hole on the chuck through the limiting column, and the threaded hole on the chuck points to the top column. After the stud is screwed into the threaded hole, the bottom of the stud abuts against the top column. The top column is pressed against the gas pipe while the stud is turned to avoid slight gas leakage.

[0009] Furthermore, the movable seat is provided with a fixing screw hole connected to the connecting groove, and the fixing screw hole points to the screw rod.

[0010] Compared with the prior art, the utility model has the advantages that: the movable seat is pressed together by a screw rod to push the two groups of clamps toward the middle, and the three-legged pressure head and the two groups of clamps clamp the gas pipe during the retraction process. In order to better clamp the gas pipe, the pressure head is set to a triangular structure, and the top column on the clamp is also a triangular structure. Therefore, when the pressure head and the top column are pressed on the gas pipe, pressure is applied to the gas pipe from three points to clamp and deform the gas pipe, thereby restricting the flow of gas in the gas pipe. In order to avoid slight gas leakage caused by failure to press together, a threaded hole is opened on the clamp, and the stud is locked in to abut against the top column to achieve pressing force and avoid slight gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 work.

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is an explosion diagram of the utility model.

[0014] Among them: 1. Fixed seat; 11. Screw hole; 2. Movable seat; 21. Connecting groove; 22. Press head; 23. Fixed screw hole; 3. Screw rod; 31. Handle; 4. Clamp; 41. Long hole; 42. Chuck; 421. Threaded hole; 422. Stud; 423. Limiting hole; 43. Top column; 431. Limiting column. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0016] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0017] like Figure 1-2As shown, a gas pipeline plugger comprises a fixed seat 1, a movable seat 2, a screw rod 3 and two groups of clamps 4, the fixed seat 1 is provided with a screw hole 11 which passes through from top to bottom, the upper end of the movable seat 2 is provided with a connecting groove 21, a bearing is connected in the connecting groove 21, the screw rod 3 is matched and connected to and passes through the screw hole 11, the bottom of the screw rod is connected to the inner ring of the bearing, a handle 31 is provided on the upper end surface of the screw rod, the upper ends of the two groups of clamps 4 are respectively rotatably connected to the left and right ends of the fixed seat 1, the left and right ends of the movable seat 2 are respectively movably connected in the long holes 41 on the two groups of clamps 4, the bottom end of the clamp 4 is provided with a chuck 42, the bottom of the movable seat 2 is provided with a pressure head 22, the pressure head 22 and the two groups of clamps 42 are distributed in a tripod, and the pressure head 22 and the two groups of clamps 42 can be abutted.

[0018] The pressure head 22 has a triangular structure, and the tip of the pressure head 22 points to the center of the tripod distribution; the chuck 42 is detachably connected to a top column 43, the chuck 42 is provided with a threaded hole 421, a stud 422 is matched and connected in the threaded hole 421, and the end of the stud 422 can be abutted and connected to the top column 43, the top column 43 has a triangular structure, a limiting column 431 is provided on the top column 43, the chuck 42 is provided with a limiting hole 423, the limiting column 431 is matched in the limiting hole 423, the limiting column 431 and the limiting hole 423 include at least two groups, the tip of the top column 43 points to the center of the triangular distribution, and the pressure head 22 and the two groups of top columns 43 are abuttably connected through the tips.

[0019] Furthermore, the movable seat 2 is provided with a fixing screw hole 23 connected to the connecting groove 21 , and the fixing screw hole 23 points to the screw rod.

[0020] Description of the working method of this utility model:

[0021] The gas pipeline plugging device adopts this structure, and the screw rod 3 is passed through the screw hole 11. The bottom end of the screw rod 3 is connected to the bearing in the connecting groove 21 on the movable seat 2. Therefore, in the process of turning the handle 31, the screw rod will push the movable seat 2 downward, and the upper ends of the two groups of clamping plates 4 can be rotatably connected to the left and right ends of the fixed seat 1 respectively, and the left and right ends of the movable seat 2 can be movably connected to the long holes 41 on the two groups of clamping plates 4 respectively, so the pushed movable seat 2 will move downward in the long space. Due to the setting of the bearing, the movable seat 2 will remain relatively parallel to the fixed seat 1, and the axial intersection of the long holes 41 on the two groups of clamping plates 4 is gathered between the fixed seat 1 and the movable seat 2. Therefore, the long hole 41 on the clamping plate 4 is inclined downward and outward. When the movable seat 2 moves downward, The seat 2 gradually moves downward and presses the long hole 41. Since the upper end of the clamp 4 is restricted on the fixed seat 1, the clamp 42 at the lower end of the clamp 4 will be pushed toward the middle by the movable seat 2, and the pressure head 22 on the movable seat 2 will also move downward until it abuts against the clamp 42. In order to enable the tripod-distributed pressure head 22 and the two groups of clamps 42 to clamp the gas pipe during the retraction process, the pressure head 22 is set to a triangular structure, and a detachable top column 43 is connected to the clamp 42. The top column 43 also has a triangular structure. The pressure head 22 and the two groups of top columns 43 are abutted and connected through sharp points. Therefore, when the pressure head 22 and the top column 43 are pressed on the gas pipe, pressure is applied to the gas pipe from three points, and the gas pipe is clamped and deformed, thereby restricting the flow of gas in the gas pipe.

[0022] However, during the three-point clamping process, it is very likely that the gas pipe cannot be completely pressed together and a slight gas leakage may occur. Therefore, the top column 43 is engaged with the limiting hole 423 on the chuck 42 through the limiting column 431, and the threaded hole 421 on the chuck 42 points to the top column 43. After the stud 422 is screwed into the threaded hole 421, the bottom of the stud 422 abuts against the top column 43. When the stud 422 is turned, the top column 43 is pressed against the gas pipe to avoid slight gas leakage.

[0023] In order to prevent the movable seat 2 from being lifted up and the screw rod 3 from being pushed upward due to the restoring force of the gas pipe after the gas pipe is pressed together, a fixing screw hole 23 pointing to the screw rod 3 is provided on the movable seat 2, in which a screw is screwed to abut against the screw rod 3 to prevent the screw rod 3 from rotating, thereby fixing the position of the screw rod 3 and preventing the gas pipe from being pressed together due to loosening of the screw rod 3 during operation.

[0024] The beneficial effect of the utility model is that the movable seat 2 is pressed together by the screw rod 3, and the two groups of clamps 4 are pushed to move closer to the middle, so that the tripod-distributed pressure head 22 and the two groups of clamps 42 clamp the gas pipe during the retraction process. In order to better clamp the gas pipe, the pressure head 22 is set to a triangular structure, and the top column 43 on the clamp 42 is also a triangular structure. Therefore, when the pressure head 22 and the top column 43 are pressed on the gas pipe, pressure is applied to the gas pipe from three points, and the gas pipe is clamped and deformed, thereby restricting the flow of gas in the gas pipe. In order to avoid slight leakage caused by failure to press together, a threaded hole 421 is opened on the clamp 42, and the stud 422 is locked in to abut against the top column 43 to achieve pressing force and avoid slight leakage of gas.

[0025] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A gas pipeline plugging device, characterized in that: It includes a fixed seat, a movable seat, a screw rod and two groups of clamping plates, the fixed seat is provided with screw holes passing through from top to bottom, the upper end of the movable seat is provided with a connecting groove, a bearing is connected to the connecting groove, the screw rod is matched and connected and passes through the screw hole, the bottom of the screw rod is connected to the inner ring of the bearing, the upper ends of the two groups of clamping plates can be rotatably connected to the left and right ends of the fixed seat respectively, the left and right ends of the movable seat can be movably connected to the long holes on the two groups of clamping plates respectively, the bottom end of the clamping plate is provided with a chuck, the bottom of the movable seat is provided with a pressure head, the pressure head and the two groups of clamps are distributed in a tripod shape, and the pressure head and the two groups of clamps can be abutted and connected.

2. The gas pipeline plugging device according to claim 1 is characterized in that: The pressure head has a triangular structure, and the tip of the pressure head points to the center of the tripod distribution; the chuck is detachably connected to a top column, the chuck is provided with a threaded hole, a stud is fitted in the threaded hole, the end of the stud can be abutted and connected to the top column, the top column has a triangular structure, and the tip of the top column points to the center of the triangular distribution, and the pressure head and two groups of top columns are abuttably connected through the tip.

3. The gas pipeline plugging device according to claim 2 is characterized in that: A limiting column is arranged on the top column, a limiting hole is arranged on the clamp, and the limiting column is matched in the limiting hole.

4. The gas pipeline plugging device according to claim 3 is characterized in that: The limiting columns and limiting holes include at least two groups.

5. The gas pipeline plugging device according to claim 1, characterized in that: The movable seat is provided with a fixing screw hole connected to the connecting groove, and the fixing screw hole points to the screw rod.

6. The gas pipeline plugging device according to claim 1, characterized in that: A handle is provided on the upper end surface of the screw rod.

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