Gas pipeline under-pressure plugging device

Abstract

The utility model discloses a gas pipeline under-pressure plugging device which comprises a gas pipeline body, a three-way saddle lower portion and a three-way saddle upper portion, fixed supporting plates are symmetrically arranged on the left side and the right side of the three-way saddle lower portion, the front end and the rear end of each fixed supporting plate are connected with movable connecting plates in a sliding mode, and installation grooves are formed in the movable connecting plates. Rubber buffering rubber strips are arranged on the inner sides of the arc-shaped fixing clamping plates at equal angles, and the rubber buffering rubber strips are arranged on the outer surface of the gas pipeline body in an attached mode. According to the gas pipeline under-pressure plugging device, the arc-shaped fixing clamping plates and the fixing supporting plate can be conveniently connected, the split type design is adopted, in the clamping process, when the position of a gas pipeline body is low, the arc-shaped fixing clamping plates are located on the front side and the rear side of the gas pipeline body, and operation is more convenient; and rubber buffer rubber strips are arranged on the inner sides of the arc-shaped fixing clamping plates, so that the gas pipeline body can be prevented from being damaged by clamping in the clamping process.

Description

Technical Field

[0001] This utility model relates to the technical field of pressurized sealing of gas pipelines, specifically a pressurized sealing device for gas pipelines. Background Technology

[0002] Gas pipelines are specialized pipeline systems for transporting combustible gases, such as natural gas and manufactured gas, from extraction sites or processing plants to urban gas distribution centers or end users. They are characterized by high efficiency and safe transportation. When emergency repairs are needed, gas pipelines can be sealed with pressurized sealing devices without interrupting gas supply, thus ensuring the continued transport of the medium within the pipeline and preventing gas supply interruptions. Pressurized sealing technology allows for maintenance and modification of pipelines without interrupting supply or reducing pressure, avoiding economic losses caused by supply stoppages. Moreover, sealing under uninterrupted supply conditions can reduce safety risks and prevent safety accidents caused by construction work.

[0003] As disclosed in announcement number CN217583678U, a gas pipeline pressurized but uninterrupted sealing device relates to the field of gas pipeline technology. The device includes a pipeline with a lower tee seat fitted at the bottom and an upper tee seat fitted at the top. A slide valve and a sealed multi-purpose bracket are mounted on the upper tee seat. Pre-locking mechanisms are fixedly installed on both sides of the lower and upper tee seats. Two arc-shaped clamping plates in the pre-locking mechanism clamp the pipeline, and a positioning screw and a positioning plate in the pre-locking mechanism fix the upper tee seat. This invention allows for convenient fixing of the lower and upper tee seats, providing better stability and facilitating subsequent welding. It can be operated by a single person, resulting in more ideal practical performance.

[0004] However, in the prior art, during the fixing process, the clamping plate and the lower side plate are connected to each other and cannot be disassembled. Therefore, when the clamping plate is placed on the front and rear sides of the pipe for clamping, if the pipe is in a low position, it is inconvenient to operate. For example, the comparative patents listed above have this problem.

[0005] To address this issue, we propose a pressurized sealing device for gas pipelines. Utility Model Content

[0006] The purpose of this utility model is to provide a pressurized sealing device for gas pipelines, so as to solve the problem mentioned in the background art that during the fixing process, the clamping plate and the lower side plate are connected to each other and cannot be disassembled. Therefore, when the clamping plate is placed on the front and rear sides of the pipeline for clamping, it is inconvenient to operate if the pipeline is in a low position.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pressurized sealing device for a gas pipeline, comprising a gas pipeline body, a lower part of a tee saddle, and an upper part of a tee saddle;

[0008] Also includes:

[0009] A fixed support plate is symmetrically arranged on the left and right sides of the lower part of the three-way saddle, and the front and rear ends of the fixed support plate are slidably connected to movable connecting plates, and the movable connecting plates are provided with mounting grooves.

[0010] The mounting groove has an arc-shaped fixing clamp inserted in the middle for clamping. The movable connecting plate drives the arc-shaped fixing clamp to clamp the front and rear ends of the gas pipeline body respectively. At the same time, rubber buffer strips are provided at equal angles on the inner side of the arc-shaped fixing clamp, and the rubber buffer strips are attached to the outer surface of the gas pipeline body.

[0011] As a preferred embodiment of this utility model, the lower part of the three-way saddle is placed at the lower end of the gas pipeline body, and the upper part of the lower part of the three-way saddle is provided with the upper part of the three-way saddle.

[0012] By adopting the above technical solution, the lower part of the tee saddle is placed at the lower end of the gas pipeline body, and the upper part of the tee saddle is provided at the upper end of the lower part of the tee saddle, thereby achieving the sealing of the gas pipeline body.

[0013] As a preferred embodiment of this utility model, a bottom bearing plate is fixedly connected to the middle of the upper end of the fixed support plate, and the bottom bearing plate is fitted to the lower end of the gas pipeline body.

[0014] The above technical solution involves a bottom bearing plate fixedly connected to the middle of the upper part of the fixed support plate, and the bottom bearing plate is fitted to the lower end of the gas pipeline body. The bottom bearing plate can contact the gas pipeline body to assist in positioning and support.

[0015] As a preferred technical solution of this utility model, a lead screw is rotatably connected to the middle of the fixed support plate, and a movable handle is fixedly connected to both the front and rear ends of the lead screw.

[0016] The lead screw has movable connecting plates threaded to both its front and rear ends, and the movable connecting plates move back and forth within the fixed support plate.

[0017] Using the above technical solution, a lead screw is rotatably connected to the middle of the fixed support plate, and movable handles are fixedly connected to both the front and rear ends of the lead screw;

[0018] The lead screw has movable connecting plates threaded to both its front and rear ends. The movable connecting plates move back and forth within the fixed support plate, and the lead screw can drive the movable connecting plates to move within the fixed support plate.

[0019] As a preferred embodiment of this invention, the thread directions at the front and rear ends of the lead screw are opposite.

[0020] By adopting the above technical solution, the opposite thread directions at the front and rear ends of the lead screw can drive the movable connecting plates on the front and rear sides to move towards each other in the fixed support plate, thereby causing the arc-shaped fixed clamping plate to clamp the outside of the gas pipeline body.

[0021] As a preferred technical solution of this utility model, the movable connecting plate and the arc-shaped fixed clamping plate are limited by a fastening bolt that passes through and is set at the upper end of the movable connecting plate.

[0022] Using the above technical solution, the movable connecting plate and the arc-shaped fixed clamp are limited by fastening bolts that pass through and are set at the upper end of the movable connecting plate. The arc-shaped fixed clamp and the movable connecting plate are detachable, which makes it easy to place the movable connecting plate on the front and rear sides of the gas pipeline body.

[0023] As a preferred technical solution of this utility model, the upper end of the arc-shaped fixing clamp is fixedly connected to a fixing rod, and the outer surface of the fixing rod is threaded with a fixing cap for locking and limiting.

[0024] Using the above technical solution, a fixing rod is fixedly connected to the upper end of the arc-shaped fixing clamp, and a fixing cap for locking and limiting is threaded on the outer surface of the fixing rod, which facilitates fixing the upper part of the three-way saddle to the upper end of the lower part of the three-way saddle.

[0025] As a preferred technical solution of this utility model, the lower end of the fixed mounting cap is fitted with a fixed mounting plate for connection, and the fixed mounting plate is fixed to the left and right ends of the upper part of the three-way saddle.

[0026] Using the above technical solution, a fixing plate for connection is attached to the lower end of the fixing cap, and the fixing plate is fixed to the left and right ends of the upper part of the tee saddle, which facilitates the installation and positioning between the upper part and the lower part of the tee saddle.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows: The gas pipeline pressurized sealing device has its lower end inserted into the mounting groove opened at the upper end of the movable connecting plate, which facilitates the connection between the arc-shaped fixed clamp and the fixed support plate. The split design makes it easier to position the arc-shaped fixed clamp on the front and rear sides of the gas pipeline body when the gas pipeline body is in a low position during the clamping process, making the operation more convenient. The movable connecting plate drives the arc-shaped fixed clamp to clamp the front and rear sides of the gas pipeline body. Moreover, the inner side of the arc-shaped fixed clamp is provided with a rubber buffer strip, which is fitted to the gas pipeline body to prevent the gas pipeline body from being pinched during the clamping process.

[0028] 1. It is equipped with a fixed support plate, a movable connecting plate and an installation groove. The arc-shaped fixed clamp is inserted into the installation groove opened at the upper end of the movable connecting plate, which facilitates the connection between the arc-shaped fixed clamp and the fixed support plate. Thus, before clamping and fixing, it is easy to place the arc-shaped fixed clamp on the front and rear sides of the gas pipeline body.

[0029] 2. It is equipped with an arc-shaped fixing clamp and a rubber buffer strip. The inner side of the arc-shaped fixing clamp is provided with rubber buffer strips at equal angles. The arc-shaped fixing clamp clamps the outer surface of the gas pipeline body, and the arc-shaped fixing clamp drives the rubber buffer strip to fit against the outer surface of the gas pipeline body, which can prevent the gas pipeline body from being pinched during the clamping process.

[0030] 3. It is equipped with a fixed mounting rod, a fixed mounting plate and a fixed mounting cap. The fixed mounting rod is inserted into the front and rear ends of the fixed mounting plate, and the fixed mounting cap is threaded to the outer surface of the fixed mounting rod, so as to fix the upper part of the tee saddle to the upper end of the lower part of the tee saddle. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a side view of the structure of this utility model;

[0033] Figure 3 This is an exploded structural diagram of the gas pipeline body, fixed support plate, and arc-shaped fixed clamp of this utility model;

[0034] Figure 4 This is a schematic diagram of the overall structure of the fixed support plate, bottom bearing plate, movable connecting plate and arc-shaped fixed clamping plate of this utility model;

[0035] Figure 5 This is an exploded view of the movable connecting plate and the arc-shaped fixing clamp of this utility model;

[0036] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0037] Figure 7 This is an exploded structural diagram of the upper part of the three-way saddle, the arc-shaped fixing clamp, the fixing rod, and the fixing cap of this utility model.

[0038] In the diagram: 1. Gas pipeline body; 2. Lower part of tee saddle; 3. Upper part of tee saddle; 4. Fixed support plate; 5. Bottom bearing plate; 6. Screw; 7. Adjustable throttle; 8. Adjustable connecting plate; 9. Mounting groove; 10. Arc-shaped fixing clamp; 11. Rubber buffer strip; 12. Fastening bolt; 13. Fixed mounting rod; 14. Fixed mounting plate; 15. Fixed mounting cap. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figures 1-7 .

[0041] To address the problem in existing technologies where the clamping plate and the lower side plate are connected and cannot be disassembled during the fixing process, making it inconvenient to operate when the clamping plate is placed on the front and rear sides of the pipeline if the pipeline is low, this solution provides a pressurized sealing device for a gas pipeline. The device comprises a gas pipeline body 1, a lower tee saddle 2, and an upper tee saddle 3. Fixed support plates 4 are symmetrically arranged on the left and right sides of the lower tee saddle 2. Movable connecting plates 8 are slidably connected to both the front and rear ends of the fixed support plates 4. An installation groove 9 is provided in the movable connecting plate 8, and an arc-shaped fixed clamping plate 10 for clamping is inserted into the middle of the installation groove 9. The movable connecting plate 8 drives the arc-shaped fixed clamping plate 10 to clamp the front and rear ends of the gas pipeline body 1. Rubber buffer strips 11 are provided at equal angles on the inner side of the arc-shaped fixed clamping plate 10, and the rubber buffer strips 11 are fitted onto the outer surface of the gas pipeline body 1.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, first, the lower part 2 of the tee saddle is placed at the corresponding position at the lower end of the gas pipeline body 1. Then, the fixed support plate 4 is placed on the left and right sides of the lower part 2 of the tee saddle. The middle part of the upper end of the fixed support plate 4 is fixedly connected to the bottom bearing plate 5. The bottom bearing plate 5 is attached to the lower end of the gas pipeline body 1 for support. Next, the lower end of the arc-shaped fixed clamping plate 10 for clamping is inserted into the mounting groove 9 opened at the upper end of the movable connecting plate 8. Then, the movable connecting plate 8 and the arc-shaped fixed clamping plate 10 are limited by the fastening bolt 12 passing through the upper end of the movable connecting plate 8, so as to facilitate the placement of the arc-shaped fixed clamping plate 10 at the front and rear ends of the gas pipeline body 1 respectively. Then, the movable connecting plate 10 fixed to the outside of the screw rod 6 is rotated. The movable handle 7 drives the lead screw 6 to rotate in the middle of the fixed support plate 4. The front and rear ends of the lead screw 6 are threaded with movable connecting plates 8, and the threads at the front and rear ends of the lead screw 6 are in opposite directions. The lead screw 6 drives the individual units on the front and rear sides of the movable connecting plate 8 to move towards each other in the fixed support plate 4. The movable connecting plate 8 drives the arc-shaped fixed clamping plate 10 to move on the outside of the gas pipeline body 1, thereby driving the arc-shaped fixed clamping plate 10 to clamp and fix the gas pipeline body 1. At the same time, rubber buffer strips 11 are provided at equal angles on the inner side of the arc-shaped fixed clamping plate 10. The rubber buffer strips 11 are attached to the outer surface of the gas pipeline body 1 to prevent the gas pipeline body 1 from being pinched during the clamping process.

[0043] Combination Figure 6 and Figure 7 As shown, after clamping, the upper part 3 of the tee saddle is moved downward and engaged with the upper end of the gas pipeline body 1. At the same time, the upper part 3 of the tee saddle is placed on the lower part 2 of the tee saddle. The upper end of the arc-shaped fixing clamp 10 is fixedly connected to the fixing mounting rod 13, so that the fixing mounting rod 13 is inserted into the front and rear sides of the fixing mounting plate 14 respectively. Then, the fixing mounting cap 15 is connected to the outer surface of the fixing mounting rod 13 by rotating the thread. The fixing mounting cap 15 is fitted to the upper end of the fixing mounting plate 14, which facilitates fixing the upper part 3 of the tee saddle to the upper end of the lower part 2 of the tee saddle. After fixing, the gas pipeline body 1 can be sealed.

[0044] The working principle of this scheme is as follows: The lower part 2 of the tee saddle is placed below the sealing position of the gas pipeline body 1. The fixed support plate 4 is placed on the left and right sides of the lower part 2 of the tee saddle. The arc-shaped fixing clamp 10 is inserted into the mounting groove 9 and fixed between the arc-shaped fixing clamp 10 and the movable connecting plate 8. The arc-shaped fixing clamp 10 is clamped on the front and rear sides of the gas pipeline body 1 respectively. Then, the upper part 3 of the tee saddle is fixed to the upper end of the lower part 2 of the tee saddle through the fixed mounting rod 13, the fixed mounting plate 14 and the fixed mounting cap 15 to perform the sealing operation on the gas pipeline body 1.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressurized sealing device for a gas pipeline, comprising a gas pipeline body (1), a lower part of a tee saddle (2) and an upper part of a tee saddle (3). Its features are, Also includes: Fixed support plate (4) is symmetrically arranged on the left and right sides of the lower part (2) of the three-way saddle, and the front and rear ends of the fixed support plate (4) are slidably connected with movable connecting plate (8), and the movable connecting plate (8) is provided with an installation groove (9). Among them, an arc-shaped fixing clamp (10) for clamping is inserted into the middle of the mounting groove (9). The movable connecting plate (8) drives the arc-shaped fixing clamp (10) to clamp the front and rear ends of the gas pipeline body (1) respectively. At the same time, rubber buffer strips (11) are provided at equal angles on the inner side of the arc-shaped fixing clamp (10), and the rubber buffer strips (11) are attached to the outer surface of the gas pipeline body (1).

2. The pressurized sealing device for gas pipelines according to claim 1, characterized in that: The lower part (2) of the three-way saddle is placed at the lower end of the gas pipeline body (1), and the upper part (3) of the three-way saddle is provided at the upper end of the lower part (2).

3. A pressurized sealing device for gas pipelines according to claim 1, characterized in that: The bottom bearing plate (5) is fixedly connected to the middle of the upper end of the fixed support plate (4), and the bottom bearing plate (5) is attached to the lower end of the gas pipeline body (1).

4. A pressurized sealing device for gas pipelines according to claim 3, characterized in that: The fixed support plate (4) is rotatably connected to the middle of a lead screw (6), and both the front and rear ends of the lead screw (6) are fixedly connected to movable handles (7). The lead screw (6) is threaded to both ends of the lead screw (6) with movable connecting plates (8), and the movable connecting plates (8) move back and forth in the fixed support plate (4).

5. A pressurized sealing device for gas pipelines according to claim 4, characterized in that: The threads at the front and rear ends of the lead screw (6) are in opposite directions.

6. A pressurized sealing device for gas pipelines according to claim 4, characterized in that: The movable connecting plate (8) and the arc-shaped fixed clamping plate (10) are limited by a fastening bolt (12) that passes through the upper end of the movable connecting plate (8).

7. A pressurized sealing device for gas pipelines according to claim 6, characterized in that: The upper end of the arc-shaped fixing clamp (10) is fixedly connected to a fixing rod (13), and the outer surface of the fixing rod (13) is threaded with a fixing cap (15) for locking and limiting.

8. A pressurized sealing device for gas pipelines according to claim 7, characterized in that: The lower end of the fixed mounting cap (15) is fitted with a fixed mounting plate (14) for connection, and the fixed mounting plate (14) is fixed to the left and right ends of the upper part (3) of the three-way saddle respectively.

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