Plugging device in air leakage maintenance pipe

Abstract

The utility model relates to the technical field of pipeline plugging, and discloses an air leakage maintenance in-pipe plugging device which comprises a plugging air bag, one side of the plugging air bag is connected with a double-end pipe in a penetrating mode, the middle of the double-end pipe is connected with an air pipe in a penetrating mode, and a supporting assembly is arranged in the plugging air bag. The supporting assembly comprises a fixing sleeve, a rotating rod is rotationally connected to the interior of the fixing sleeve, screw rods are fixedly connected to the two ends of the rotating rod, connecting blocks are rotationally connected to one ends of the screw rods, a shaft rod is fixedly connected to one end of one screw rod, and the shaft rod is rotationally connected to the interior of one connecting block. The stability of the air bag during air inflation is enhanced, the air leakage displacement phenomenon caused by the complex environment in the pipeline is reduced, the working quality and efficiency of pipeline plugging are improved, meanwhile, the contact face of the supporting assembly and the inner wall of the pipeline is buffered through the arrangement of the buffering assembly, and the safety of the pipeline plugging is improved. And the damage phenomena such as pipeline deformation and fracture caused by excessive support are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline plugging technical field especially gas leakage maintenance pipe internal plugging device. BACKGROUND

[0002] Gas leakage in the pipe means waste of energy, whether it is natural gas, gas or other gas, will be lost due to leakage, which not only increases the energy cost of the user, but also may cause economic loss to the supply company, the pipeline plugging device is used for making the target pipe section without water and gas seepage, the pipeline plugging air bag made of high-quality rubber is inflated to make it swell, when the gas pressure in the water plugging air bag reaches the specified requirement, the water plugging air bag fills the entire pipe section, and the friction between the wall of the pipeline plugging air bag and the pipeline blocks the water leakage, so as to achieve the purpose of no external seepage in the target pipe section.

[0003] Through the search, the Chinese patent with the publication number CN217108777U discloses a gas pipeline plugging device, aiming at the existing gas pipeline plugging device, in the gas pipeline plugging process, the plugging air bag is continuously impacted by the gas pressure, and is easy to fall off from the opening end of the gas pipeline, resulting in gas leakage, which seriously threatens the safety of the workers, so as to avoid the plugging air bag from falling off from the opening end of the gas pipeline, causing gas leakage, and effectively guaranteeing the personal safety of the workers.

[0004] The above-mentioned pipeline plugging is beneficial to avoid the plugging air bag from falling off from the opening end of the gas pipeline, and in the prior art, the inflation air bag is usually used for plugging, and the supporting performance of the inflation air bag in the pipeline is relatively weak, in actual application, the pipeline environment is often complex and changeable, for example, the roughness of the inner wall of the pipeline, the bending degree of the pipeline and the pressure in the pipeline will affect the supporting stability of the air bag, if the air bag cannot be stably supported in the pipeline, gas leakage, displacement and other problems may occur, thereby leading to plugging failure, and reducing the working quality of the pipeline plugging. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a gas leakage maintenance pipe internal plugging device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas leakage maintenance pipe internal plugging device, comprising a plugging air bag, a double-end pipe is connected through one side of the plugging air bag, a gas pipe is connected through the middle part of the double-end pipe, and a supporting assembly is arranged in the plugging air bag;

[0007] The support assembly comprises a fixing sleeve, a rotating rod is rotatably connected inside the fixing sleeve, screw rods are fixedly connected to two ends of the rotating rod, a connecting block is rotatably connected to one end of the screw rod, and an axle rod is fixedly connected to one end of one of the screw rods.

[0008] As a further description of the above technical solution:

[0009] One end of the axle rod is fixedly connected with a knob, two fixed plates are fixedly connected to the upper surface of the fixing sleeve, a sliding slot is formed in the middle of the fixed plate, and the two fixed plates are fixedly connected to the upper surface of the connecting block.

[0010] As a further description of the above technical solution:

[0011] One side of the fixing sleeve is hingedly connected with two first support rods, threaded sleeves are threadedly connected to the outer portions of the two screw rods, sliding blocks are fixedly connected to the upper surfaces of the threaded sleeves, the sliding blocks are slidingly connected inside the sliding slot, and second support rods are hingedly connected to the two sides of the threaded sleeves.

[0012] As a further description of the above technical solution:

[0013] One end of the second support rod is hingedly connected with a supporting block, and the supporting block is hingedly connected to one end of the first support rod.

[0014] As a further description of the above technical solution:

[0015] One side of the supporting block is provided with a buffer assembly, the buffer assembly comprises two housings, the two housings are fixedly connected to one side of the supporting block, two springs are fixedly connected to one side of the supporting block, and the springs are arranged inside the housings.

[0016] As a further description of the above technical solution:

[0017] A first limiting ring is fixedly connected inside the housing, an inner housing is slidingly connected inside the first limiting ring, a second limiting ring is fixedly connected to the outer portion of the inner housing, and one end of the spring is fixedly connected to the inner wall of the inner housing.

[0018] As a further description of the above technical solution:

[0019] One side of each of the two inner housings is fixedly connected with a buffer shell, and a rubber pad is arranged on one side of the buffer shell.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. The utility model discloses a support assembly is set up, and the two sides of the air bag are supported when the air bag is inflated, which helps to improve the stability of the air bag during inflation, reduces the air leakage displacement phenomenon caused by the complex environment inside the pipeline, helps to improve the working quality of the plugging pipeline, thereby improving the efficiency of the plugging pipeline.

[0022] 2. The utility model discloses a buffer assembly is set up, and the support assembly and the inner wall of the pipeline contact support, which helps to reduce the deformation and rupture of the pipeline caused by excessive support of the support assembly, thereby improving the protection performance of the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure schematic diagram of the utility model is provided;

[0024] Figure 2 The second support rod structure schematic diagram of the utility model is provided;

[0025] Figure 3 The fixed plate structure schematic diagram of the utility model is provided;

[0026] Figure 4 The screw sleeve structure schematic diagram of the utility model is provided;

[0027] Figure 5 The support block structure schematic diagram of the utility model is provided;

[0028] Figure 6 The shell cross section structure schematic diagram of the utility model is provided.

[0029] LEGEND:

[0030] 1, plugging air bag;2, double -end pipe;3, air pipe;4, fixed sleeve;5, rotating rod;6, screw;7, connecting block;8, axle rod;9, knob;10, fixed plate;11, sliding slot;12, first support rod;13, screw sleeve;14, sliding block;15, second support rod;16, support block;17, shell;18, first limit ring;19, inner shell;20, second limit ring;21, spring;22, buffer shell;23, rubber pad. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0032] As shown in the accompanying drawings, Figures 1-6 An embodiment provided by the present application: a leak repair pipe internal plugging device, comprising a plugging air bag 1, a double-end pipe 2 is connected through one side of the plugging air bag 1, a gas pipe 3 is connected through the middle part of the double-end pipe 2, and a supporting assembly is arranged in the plugging air bag 1.

[0033] The supporting assembly comprises a fixing sleeve 4, a rotating rod 5 is rotatably connected in the fixing sleeve 4, screw rods 6 are fixedly connected at both ends of the rotating rod 5, a connecting block 7 is rotatably connected at one end of the screw rods 6, an axle rod 8 is fixedly connected at one end of one of the screw rods 6, and the axle rod 8 is rotatably connected in one of the connecting blocks 7, the fixing sleeve 4 is used for installing the rotating rod 5, and the screw rods 6 are used for driving the threaded sleeve 13 to move.

[0034] As shown in the accompanying drawings, Figure 3 One end of the axle rod 8 is fixedly connected with a knob 9, two fixed plates 10 are fixedly connected to the upper surface of the fixing sleeve 4, a sliding groove 11 is formed in the middle part of the fixed plate 10, the two fixed plates 10 are fixedly connected to the upper surfaces of the connecting blocks 7 respectively, two first supporting rods 12 are hingedly connected to one side of the fixing sleeve 4, threaded sleeves 13 are threadedly connected to the outer parts of the two screw rods 6, sliding blocks 14 are fixedly connected to the upper surfaces of the threaded sleeves 13, the sliding blocks 14 are slidingly connected in the sliding grooves 11, second supporting rods 15 are hingedly connected to the two sides of the threaded sleeves 13, supporting blocks 16 are hingedly connected to one end of the second supporting rods 15, the supporting blocks 16 are hingedly connected to one end of the first supporting rods 12, buffer assemblies are arranged on one side of the supporting blocks 16, the sliding grooves 11 facilitate the sliding of the sliding blocks 14, thereby limiting the movement of the threaded sleeves 13, and the first supporting rods 12 and the second supporting rods 15 facilitate the supporting of the supporting blocks 16.

[0035] As shown in the accompanying drawings, Figure 6As shown, the buffer assembly includes two housings 17 fixedly connected to one side of the support block 16, two springs 21 fixedly connected to one side of the support block 16, the springs 21 arranged inside the housing 17, a first limiting ring 18 fixedly connected inside the housing 17, an inner shell 19 slidably connected inside the first limiting ring 18, a second limiting ring 20 fixedly connected outside the inner shell 19, one end of the spring 21 fixedly connected to the inner wall of the inner shell 19, two inner shells 19 fixedly connected to one side of the buffer shell 22, and the rubber pad 23 arranged on one side of the buffer shell 22. The spring 21 provides elastic buffering for the buffer shell 22, and the rubber pad 23 enhances the protection when the pipeline inner wall is contacted. The inner shell 19 and the housing 17 help to limit the deformation of the spring 21, and the first limiting ring 18 and the second limiting ring 20 help to prevent the inner shell 19 from being separated from the inside of the housing 17.

[0036] Working principle: in use, first put the plugging air bag 1 into the pipeline to be plugged, then connect one end of the air pipe 3 with the inflating device, hold the connecting block 7 near one end of the shaft 8, rotate the knob 9, so that the knob 9 drives the two screw rods 6 to rotate under the connection of the rotating rod 5, at this time the rotating rod 5 rotates in the fixed sleeve 4, and when the screw rod 6 rotates, under the action of the screw thread, the threaded sleeve 13 moves outside the screw rod 6 under the action of the sliding block 14 sliding in the sliding groove 11, so that the threaded sleeve 13 drives the two second supporting rods 15 to rotate in the moving process, thereby driving the first supporting rod 12 to be supported under the connection of the support block 16, so that the two support blocks 16 slowly approach the pipeline inner wall, thereby supporting the pipeline inner wall.

[0037] When the support block 16 approaches the pipeline inner wall, the rubber pad 23 first contacts the pipeline inner wall, and under the action of the pressure, the rubber pad 23 drives the buffer shell 22 to extrude the two inner shells 19, so that the inner shell 19 slides in the housing 17, extruding the spring 21 to generate elastic force under the pressure of the spring 21, and when the elastic force is released, the contact surface of the pipeline inner wall is buffered, thereby helping to protect the pipeline inner wall.

[0038] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. A leak repair pipe plugging device, comprising a plugging air bag (1), a double-end pipe (2) is connected through one side of the plugging air bag (1), and a gas pipe (3) is connected through the middle of the double-end pipe (2), characterized in that: The inside of the plugging air bag (1) is provided with a supporting assembly; The supporting assembly comprises a fixed sleeve (4), the inside of the fixed sleeve (4) is rotatably connected with a rotating rod (5), both ends of the rotating rod (5) are fixedly connected with a screw rod (6), one end of the screw rod (6) is rotatably connected with a connecting block (7), one end of one of the screw rods (6) is fixedly connected with a shaft rod (8), the shaft rod (8) is rotatably connected in the inside of one of the connecting blocks (7).

2. The leak repair tube within occluder of claim 1, wherein: One end of the shaft rod (8) is fixedly connected with a knob (9), the upper surface of the fixed sleeve (4) is fixedly connected with two fixed plates (10), the middle part of the fixed plate (10) is provided with a sliding slot (11), and the upper surfaces of the two fixed plates (10) are fixedly connected with the connecting blocks (7).

3. The leak repair tube within occluder of claim 1, wherein: One side of the fixed sleeve (4) is hingedly connected with two first supporting rods (12), the outer surfaces of the two screw rods (6) are threadedly connected with a threaded sleeve (13), the upper surface of the threaded sleeve (13) is fixedly connected with a sliding block (14), the sliding block (14) is slidably connected in the inside of the sliding slot (11), and both sides of the threaded sleeve (13) are hingedly connected with a second supporting rod (15).

4. The leak repair tube within occluder of claim 3, wherein: One end of the second supporting rod (15) is hingedly connected with a supporting block (16), and the supporting block (16) is hingedly connected to one end of the first supporting rod (12).

5. The leak repair tube within occluder of claim 4, wherein: One side of the supporting block (16) is provided with a buffer assembly, the buffer assembly comprises two housings (17), the two housings (17) are fixedly connected to one side of the supporting block (16), one side of the supporting block (16) is fixedly connected with two springs (21), and the springs (21) are arranged in the inside of the housings (17).

6. The leak repair tube within occluder of claim 5, wherein: The inside of the housing (17) is fixedly connected with a first limiting ring (18), the inside of the first limiting ring (18) is slidably connected with an inner housing (19), the outer surface of the inner housing (19) is fixedly connected with a second limiting ring (20), and one end of the spring (21) is fixedly connected to the inner wall of the inner housing (19).

7. The leak repair tube within occluder of claim 6, wherein: One side of the two inner housings (19) is fixedly connected with a buffer shell (22), and one side of the buffer shell (22) is provided with a rubber pad (23).

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