Pipeline plugging device for gas engineering maintenance
By designing a pipeline sealing device for gas engineering maintenance, which includes components such as a fixing sleeve, a positioning sleeve, and a limiting ring, the problem of unstable gasbag installation has been solved, achieving stable sealing and convenient maintenance.
Patent Information
- Application Number
- CN202520230217.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-13
AI Technical Summary
During the maintenance of existing gas pipelines, the friction between the gas bladder and the inner wall of the pipeline is insufficient, resulting in unstable installation of the gas bladder. It is easy for the gas bladder to shift or fall off when the internal pressure of the pipeline changes, causing the sealing to fail.
A pipe sealing device is designed, comprising a fixed sleeve, a positioning sleeve, an adjusting screw, a moving block, a push-pull rod, and a fixed block. By rotating the adjusting screw, the moving block and the push-pull rod are driven, and the fixed block is fitted against the inner wall of the pipe. Combined with the limiting ring, the position of the airbag is fixed to ensure that the airbag is stably fitted against the inner wall of the pipe.
This design achieves stable fixation of the airbag within the pipeline, preventing displacement or detachment due to pressure changes, ensuring effective sealing, and facilitating airbag maintenance and replacement.
Smart Images
Figure CN223725809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to gas pipeline repair technical field, concretely relates to a pipeline plugging device when gas engineering maintenance. BACKGROUND
[0002] The gas pipeline is a kind of special pipeline for conveying combustible gas, in recent years, with the vigorous development of gas industry, gas pipeline rapidly goes to thousands of households.The existing gas pipeline is often plugged when being repaired, usually inflatable airbag is inserted into the pipeline, airbag is inflated, airbag is expanded to be in line with the inner wall of pipeline, and plugging effect is achieved.
[0003] But in actual operation, it is found that the friction between the existing airbag and the inner wall of pipeline is not enough, there is certain pressure in the pipeline, airbag is not stable after installation, if the internal pressure of pipeline changes, airbag will be displaced, or airbag will be caused to fall off, leading to plugging failure. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a pipeline plugging device when gas engineering maintenance to solve the problem that airbag is not stable after installation in the background art, if the internal pressure of pipeline changes, airbag will be displaced, or airbag will be caused to fall off, leading to plugging failure.
[0005] To achieve the above object, the utility model provides the following technical scheme: a pipeline plugging device when gas engineering maintenance, including fixed sleeve and the positioning sleeve fixed in fixed sleeve, the positioning sleeve is rotatably connected with adjusting screw, the outer wall of adjusting screw is connected with moving block, the upper and lower sides of moving block are all provided with push-pull rod, and one side of push-pull rod is provided with fixed block, and the both ends of push-pull rod are rotatably connected with the connecting seat fixedly connected with moving block and fixed block;
[0006] The outer part of fixed sleeve is movably connected with fixed ring extending into fixed sleeve, the outer wall of fixed ring is fixed with two positioning rings, airbag is installed between two positioning rings, the outer wall of positioning sleeve is provided with thread groove, and the thread groove of positioning sleeve outer wall is connected with limiting ring outside thread.
[0007] In further embodiments, the outer wall of one side of fixed sleeve is provided with air inlet hole, and the air inlet hole of fixed sleeve is fixed with inflation tube, the outer wall of one positioning ring is provided with air hole in communication with inflation tube.
[0008] In further embodiments, one end of adjusting screw is fixed with rotary disc, the rotary disc is provided with screw hole, and the screw hole of rotary disc is connected with fixed bolt outside thread.
[0009] In further embodiments, one side outer wall of the moving block is provided with two limiting holes, and a limiting column fixedly connected with the positioning sleeve is movably connected in the limiting hole of the moving block.
[0010] In further embodiments, both upper and lower outer walls of the fixed ring are fixedly provided with limiting blocks, and one side outer wall of the fixed sleeve is provided with two limiting grooves matched with the limiting blocks.
[0011] In further embodiments, the outer wall of the inflation pipe is provided with a threaded groove, and a sealing cover is threadedly connected at the threaded groove of the inflation pipe.
[0012] Technical effects and advantages of the present application:
[0013] The gas pipeline blocking device for gas engineering maintenance can completely block the gas pipeline by inserting the air bag into the gas pipeline and inflating the air bag through the inflation pipe to make the air bag adhere to the inner wall of the gas pipeline, and can fix the position of the air bag by rotating the adjusting screw rod driven by the rotating disc, moving the moving block, moving the fixed block driven by the push-pull rod, and making the fixed block adhere to the inner wall of the gas pipeline, thereby avoiding the change of the internal pressure of the pipeline and causing the air bag to shift or fall off to cause blocking failure.
[0014] The position of the air bag can be fixed by screwing the limiting ring on the outer wall of the positioning sleeve and making the limiting ring adhere to one side of the positioning ring, and the limiting ring and the air bag can be removed from the positioning sleeve by unscrewing the limiting ring from the positioning sleeve, so that the air bag can be maintained and replaced after long-term use, thereby ensuring the blocking effect of the blocking device. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0016] Figure 1 It is a structural schematic view of the present application;
[0017] Figure 2 It is a structural schematic view of the fixed sleeve and the positioning sleeve of the present application;
[0018] Figure 3 It is a structural schematic view of the adjusting screw rod of the present application;
[0019] Figure 4 The utility model discloses a Figure 3 The enlarged view of A in the middle of the figure;
[0020] Figure 5 The structure diagram of the fixed ring and the air bag of the utility model.
[0021] In the figure: 1, fixed sleeve;2, positioning sleeve;3, adjusting screw;4, rotating disc;5, fixed bolt;6, moving block;7, push-pull rod;8, fixed block;9, connecting seat;10, limiting column;11, fixed ring;12, positioning ring;13, air bag;14, limiting block;15, inflation pipe;16, sealing cover;17, limiting ring. DETAILED DESCRIPTION
[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, some technical features known in the art are not described to avoid obscuring the utility model.
[0023] Unless the direction defined separately is indicated, the directions such as up, down, left, right, front, back, inner and outer involved in the present utility model are based on the directions such as up, down, left, right, front, back, inner and outer in the figure shown in the utility model, which are explained here.
[0024] Please refer to Figures 1-5 The utility model provides a pipeline plugging device when gas engineering maintenance, including fixed sleeve 1 and the positioning sleeve 2 of welding in fixed sleeve 1, the bearing rotation connection has adjusting screw 3 in positioning sleeve 2 through welding, and the one end of adjusting screw 3 extends to fixed sleeve 1 outside, and the end face welding of adjusting screw 3 is located in the outside of positioning sleeve 2 rotating disc 4, and the threaded hole is set up on rotating disc 4, and the threaded hole in rotating disc 4 is connected with fixed bolt 5 in screw thread, and the fixed bolt 5 is tightly fixed, and the fixed bolt 5 is attached in the outer wall of fixed sleeve 1, can the position of rotating disc 4 and adjusting screw 3 is fixed;
[0025] The outer wall of the adjusting screw 3 is threadedly connected with a moving block 6, the upper and lower sides of the moving block 6 are provided with push-pull rods 7, one side of the push-pull rod 7 is provided with a fixed block 8, both ends of the push-pull rod 7 are rotatably connected with a connecting seat 9 fixedly connected with the moving block 6 and the fixed block 8, the upper and lower sides of the outer wall of the positioning sleeve 2 are provided with grooves matched with the fixed block 8, so that the fixed block 8 is conveniently stored, a anti-skid groove is formed in the outer wall of one side of the fixed block 8, two limiting holes are formed in the outer wall of one side of the moving block 6, and a limiting column 10 fixedly connected with the positioning sleeve 2 is movably connected in the limiting hole of the moving block 6; the limiting column 10 can limit the movement path of the moving block 6 when the adjusting screw 3 rotates, so that the horizontal movement of the moving block 6 in the positioning sleeve 2 is ensured;
[0026] The outer wall of the fixed sleeve 1 is movably connected with a fixed ring 11 extending into the fixed sleeve 1, the outer wall of the fixed sleeve 1 is provided with a moving hole for the movement of the fixed ring 11, the outer wall of the fixed ring 11 is welded with two positioning rings 12, the two positioning rings 12 are mounted with an air bag 13, the upper and lower sides of the outer wall of the fixed ring 11 are welded with limiting blocks 14, the outer wall of one side of the fixed sleeve 1 is provided with two limiting grooves matched with the limiting blocks 14, the limiting blocks 14 are inserted into the limiting grooves of the fixed sleeve 1, and the positions of the fixed ring 11 and the air bag 13 can be limited, so that the fixed ring 11 is prevented from rotating outside the positioning sleeve 2;
[0027] The outer wall of one side of the fixed sleeve 1 is provided with an air inlet hole, and the air inlet hole of the fixed sleeve 1 is welded with an inflation pipe 15, the outer wall of one positioning ring 12 is provided with an air hole in communication with the inflation pipe 15, and the inflation pipe 15 extends into the air hole, a sealing ring is arranged at the position where the inflation pipe 15 contacts the air hole, so that the sealing property between the inflation pipe 15 and the positioning ring 12 is ensured, the outer wall of the inflation pipe 15 is provided with a threaded groove, and the threaded groove of the inflation pipe 15 is threadedly connected with a sealing cover 16, the air bag 13 is inserted into the gas pipeline, and the air bag 13 is inflated through the inflation pipe 15, so that the air bag 13 is attached to the inner wall of the gas pipeline, thereby fully sealing the gas pipeline, the adjusting screw 3 is driven to rotate by the rotating disc 4, the moving block 6 is driven to move, the fixed block 8 is driven to move by the push-pull rod 7, the fixed block 8 is attached to the inner wall of the gas pipeline, so that the position of the air bag 13 is fixed, the air bag 13 is prevented from being displaced or falling off due to the change of the internal pressure of the pipeline, and the sealing failure is avoided;
[0028] The outer wall of the positioning sleeve 2 is provided with a threaded groove, and the threaded groove of the outer wall of the positioning sleeve 2 is externally threadedly connected with a limiting ring 17; by screwing the limiting ring 17 on the outer wall of the positioning sleeve 2, and simultaneously abutting the limiting ring 17 on one side of the limiting ring 12, the position of the air bag 13 can be fixed; meanwhile, by unscrewing the limiting ring 17 from the positioning sleeve 2, the limiting ring 12 and the air bag 13 can be taken off from the positioning sleeve 2; after long-time use causes the air bag 13 to be worn out, the air bag 13 can be maintained and replaced, so that the plugging effect of the plugging device is ensured.
[0029] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, the control mode of the utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.
[0030] In the description of the utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0031] Working principle:
[0032] The gas pipeline plugging device is used for plugging a gas pipeline during maintenance, and the position of the air bag 13 is fixed by inserting the fixing ring 11 into the fixing sleeve 1 and screwing the limiting ring 17 on the outer portion of the positioning sleeve 2 while abutting the limiting ring 17 on one side of the limiting ring 12; then the device is inserted into the gas pipeline to be maintained, the rotating disc 4 drives the adjusting screw 3 to rotate, the moving block 6 is driven to move, the fixed block 8 is driven to move by the cooperation of the push-pull rod 7, the fixed block 8 is abutted on the inner wall of the gas pipeline, the position of the device is fixed, the fixed screw 5 is tightened, the fixed screw 5 is abutted on the outer wall of the fixing sleeve 1, the position of the rotating disc 4 and the adjusting screw 3 is fixed, the sealing cover 16 is unscrewed, the air bag 13 is inflated through the inflation pipe 15, the air bag 13 is abutted on the inner wall of the gas pipeline, the gas pipeline is fully plugged, and the sealing cover 16 is screwed on the outer portion of the inflation pipe 15 to seal the inflation pipe 15.
[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pipe plugging device for gas engineering maintenance, comprising a fixing sleeve (1) and a positioning sleeve (2) fixed in the fixing sleeve (1), characterized in that: The positioning sleeve (2) is rotationally connected with an adjusting screw (3), the outer wall of the adjusting screw (3) is threadedly connected with a moving block (6), the upper and lower sides of the moving block (6) are provided with a push-pull rod (7), one side of the push-pull rod (7) is provided with a fixed block (8), and both ends of the push-pull rod (7) are rotationally connected with a connecting seat (9) fixedly connected with the moving block (6) and the fixed block (8). The outer wall of the fixed sleeve (1) is movably connected with a fixed ring (11) extending into the fixed sleeve (1), the outer wall of the fixed ring (11) is fixedly connected with two positioning rings (12), the two positioning rings (12) are mounted with an air bag (13), the outer wall of the positioning sleeve (2) is provided with a threaded groove, and the threaded groove of the outer wall of the positioning sleeve (2) is externally threadedly connected with a limiting ring (17).
2. A pipe plugging device for use in gas engineering maintenance according to claim 1, characterised in that: The outer wall of the fixed sleeve (1) is provided with an air inlet hole, and the air inlet hole of the fixed sleeve (1) is fixedly connected with an inflation pipe (15), the outer wall of one of the positioning rings (12) is provided with an air hole in communication with the inflation pipe (15).
3. The pipe plugging device for gas engineering maintenance according to claim 1, characterized in that: One end of the adjusting screw (3) is fixedly connected with a rotating disc (4), the rotating disc (4) is provided with a threaded hole, and the threaded hole of the rotating disc (4) is threadedly connected with a fixed bolt (5).
4. The pipe plugging device for gas engineering maintenance according to claim 1, characterized in that: The outer wall of the moving block (6) is provided with two limiting holes, and the limiting holes of the moving block (6) are movably connected with a limiting column (10) fixedly connected with the positioning sleeve (2).
5. The pipe plugging device for gas engineering maintenance according to claim 1, characterized in that: The outer walls of the upper and lower sides of the fixed ring (11) are fixedly connected with a limiting block (14), and the outer wall of the fixed sleeve (1) is provided with two limiting grooves matched with the limiting block (14).
6. A pipe plugging device for gas engineering maintenance according to claim 2, characterized in that: The outer wall of the inflation pipe (15) is provided with a threaded groove, and the threaded groove of the inflation pipe (15) is threadedly connected with a sealing cover (16).