Natural gas pipeline leaking stoppage device

Abstract

The utility model discloses a natural gas pipeline leaking stoppage device which comprises a supporting plate, two fixing boxes are fixedly connected to the two sides of the supporting plate, and a plurality of supporting shafts are fixedly connected between the inner walls of the front side and the rear side of each fixing box at equal intervals. The two sets of hanging buckle sleeving and supporting assemblies are used for sleeving and supporting the natural gas pipeline and are hung on the two corresponding supporting shafts on the lower portion respectively; and the lifting plate is arranged below the supporting plate. According to the utility model, a series of structures are arranged, so that natural gas pipelines with different diameters can be wound, sleeved, pulled and connected conveniently in a manner that the hanging buckle heights on the two sides can be changed, and leakage holes of the natural gas pipelines can be pressed and sealed conveniently for leakage stoppage; the radian of the arc-shaped elastic steel plate and the radian of the sealing rubber mat can be flexibly adjusted according to the radian of the outer sides of the natural gas pipelines with different diameters, leaking stoppage work can be conveniently conducted on the outer sides of the natural gas pipelines with different diameters, and applicability is improved.

Description

A natural gas pipeline leak sealing device Technical Field

[0001] This utility model relates to the field of natural gas pipeline leak sealing technology, specifically a natural gas pipeline leak sealing device. Background Technology

[0002] Natural gas pipelines are pipelines that transport natural gas from extraction sites or processing plants to urban gas distribution centers or industrial users. They are also known as gas transmission pipelines. Using natural gas pipelines to transport natural gas is the way to transport large quantities of natural gas on land. Natural gas pipelines account for about half of the world's total pipeline length. When a natural gas pipeline leaks, it needs to be temporarily plugged before repair work can be carried out.

[0003] According to the novel structure search report, announcement number CN221221904U discloses a natural gas pipeline leak-sealing device, including an installation platform and a binding strip fixed to the bottom of the installation platform. A movable frame is slidably connected to the installation platform, and a bonding plate is installed at the bottom of the movable frame. A rubber sheet is fixedly connected to the bottom of the bonding plate. The installation platform is provided with a limiting mechanism to restrict the upward sliding of the movable frame. A through groove adapted to the binding strip is opened at the top of the installation platform. A fixing mechanism for fixing one end of the binding strip is provided inside the through groove. The fixing mechanism inside the through groove fixes the other end of the binding strip, thereby installing the device on the pipeline. Then, by driving the movable frame to descend, the rubber sheet at the bottom of the bonding plate is tightly pressed against the leak in the pipeline, thereby achieving the leak-sealing effect. By changing the bonding plate of different sizes and with the action of the binding strip, it can seal leaks in pipelines of different sizes, showing strong adaptability.

[0004] The aforementioned technology discloses a natural gas pipeline leak-sealing device, which is supported by binding strips wrapped around the natural gas pipeline. A movable frame is driven to descend, causing the rubber sheet at the bottom of the bonding plate to abut against the leak in the pipeline for leak sealing. However, it still has the following shortcomings in use:

[0005] Since the curvature of the bonding plate and rubber sheet is fixed, and the curvature of the outer side of natural gas pipelines of different diameters is different, it is difficult to use them to stably bond and press to seal the outer side of natural gas pipelines of different diameters, resulting in unsatisfactory applicability. In view of this, this application proposes a natural gas pipeline leak sealing device to solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of this invention is to provide a natural gas pipeline leak sealing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a natural gas pipeline leak sealing device, comprising:

[0008] The support plate has two fixed boxes fixedly connected to both sides, and multiple support shafts are fixedly connected at equal intervals between the inner walls of the front and rear sides of the fixed boxes.

[0009] The hook-and-loop support assembly consists of two sets used for supporting natural gas pipelines, and is respectively hung on two corresponding lower support shafts; the hook-and-loop support assembly is used to support the outside of the natural gas pipeline, and is used to hang on two support shafts at corresponding heights among multiple support shafts according to the different outer diameters of natural gas pipelines.

[0010] The lifting plate is located below the support plate;

[0011] A threaded vertical guide drive assembly is installed on the top of the lifting plate, and the support plate is sleeved on the threaded vertical guide drive assembly; the threaded vertical guide drive assembly is used to drive the lifting plate to move vertically up and down for adjustment.

[0012] An arc-shaped elastic steel plate is installed below the lifting plate, and a sealing gasket is bonded and fixed to the bottom of the arc-shaped elastic steel plate.

[0013] The arc-shaped adjustment component is installed between the arc-shaped elastic steel plate and the lifting plate. The arc-shaped elastic steel plate is used to temporarily seal the leak at the outside of the natural gas pipeline by pressing the sealing gasket together when the lifting plate moves down. The arc-shaped adjustment component is used to flexibly adjust the arc of the arc-shaped elastic steel plate according to the arc of the outside of the natural gas pipeline of different diameters.

[0014] Preferably, the hook sleeve support assembly includes an elastic steel strip, and hooks are welded and fixed at both ends of the elastic steel strip. The hooks are movably hung on the lowest support shaft among the corresponding multiple support shafts.

[0015] Preferably, the threaded vertical guide drive assembly includes four vertical guide rods fixedly connected to the top of the lifting plate in a rectangular shape. The support plate is slidably sleeved on the four vertical guide rods. A stainless steel nut is embedded and fixed at the top of the support plate. A stainless steel external threaded tube with its bottom end rotatably connected to the top of the lifting plate is sleeved on the inner thread of the stainless steel nut. Handle rods are welded and fixed to the top of both sides of the stainless steel external threaded tube.

[0016] Preferably, the arc adjustment assembly includes a connecting seat hinged to the top of the arc-shaped elastic steel plate, a T-shaped screw rotatably mounted on the top of the connecting seat, a stainless steel external threaded tube movably sleeved on the T-shaped screw and not in contact with the outside of the T-shaped screw, a lifting plate threadedly sleeved on the T-shaped screw, and four inclined connecting rods rectangularly hinged between the bottom of the lifting plate and the top of the arc-shaped elastic steel plate, with two connecting rods on the left and right opposite sides symmetrically arranged to form an inward V-shape.

[0017] Preferably, the two opposing fixed boxes are provided with openings on their opposing sides and bottoms.

[0018] Preferably, a fixing seat is welded and fixed to the adjacent side of each of the two opposing fixing boxes, and the bottom of the fixing seat is fixedly connected to the top of the support plate.

[0019] Preferably, the top of the lifting plate is provided with a threaded hole for threaded connection with the T-shaped screw.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. With the cooperation of the set support plate, fixing box, multiple support shafts and hook sleeve support assembly, it can be used to perform looping and pulling connection with natural gas pipelines of different diameters by changing the hook height on both sides, which has high applicability;

[0022] 2. By using the set support plate, threaded vertical guide drive assembly, arc adjustment support assembly, lifting plate, arc-shaped elastic steel plate and sealing gasket, it can press and seal the leaks in the natural gas pipeline to stop the leak.

[0023] 3. The arc adjustment component can flexibly adjust the arc of the elastic steel plate and sealing gasket according to the arc of the outer side of natural gas pipelines of different diameters, making it convenient to perform leak sealing work on the outer side of natural gas pipelines of different diameters and improving applicability.

[0024] This utility model, through a series of structures, facilitates the connection and tightening of natural gas pipelines of different diameters by adjusting the height of the hooks on both sides. It also facilitates the sealing of leaks in natural gas pipelines by pressing and sealing them, and allows for flexible adjustment of the curvature of the arc-shaped elastic steel plate and sealing gasket according to the curvature of the outer side of natural gas pipelines of different diameters. This makes it convenient and applicable to sealing leaks on the outer side of natural gas pipelines of different diameters, thus improving its applicability. Attached Figure Description

[0025] Figure 1 is a schematic diagram of a natural gas pipeline leak sealing device proposed in this utility model;

[0026] Figure 2 is a schematic diagram of the structure from below in Figure 1;

[0027] Figure 3 is a schematic diagram of the front cross-sectional structure of a natural gas pipeline plugging device proposed in this utility model.

[0028] In the diagram: 1. Support plate; 2. Fixing box; 201. Support shaft; 202. Fixing seat; 3. Elastic steel strip; 301. Hook; 4. Stainless steel nut; 401. Stainless steel external threaded pipe; 402. Hand lever; 403. Vertical guide rod; 5. Lifting plate; 501. Connecting rod; 502. Connecting seat; 503. T-shaped screw; 6. Arc-shaped elastic steel plate; 601. Sealing gasket. Detailed Implementation

[0029] 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.

[0030] As shown in Figures 1 to 3, the natural gas pipeline leak sealing device proposed in this embodiment includes:

[0031] The support plate 1 has two fixed boxes 2 fixedly connected to both sides. Multiple support shafts 201 are fixedly connected at equal intervals between the front and rear inner walls of the fixed boxes 2. The opposing sides and bottoms of the two opposing fixed boxes 2 are set as openings. The adjacent sides of the two opposing fixed boxes 2 are welded and fixed with fixed seats 202. The bottom of the fixed seats 202 is fixedly connected to the top of the support plate 1. The fixed seats 202 serve to reinforce the fixed boxes 2.

[0032] The hook-and-loop support assembly consists of two sets used for supporting natural gas pipelines, and is respectively hung on two corresponding lower support shafts 201; the hook-and-loop support assembly is used to support the outside of the natural gas pipeline, and is used to hang natural gas pipelines of different outer diameters on two support shafts 201 at corresponding heights among the multiple support shafts 201.

[0033] The lifting plate 5 is located below the support plate 1;

[0034] A threaded vertical guide drive assembly is installed on the top of the lifting plate 5, and a support plate 1 is sleeved on the threaded vertical guide drive assembly; the threaded vertical guide drive assembly is used to drive the lifting plate 5 to move vertically up and down for adjustment.

[0035] An arc-shaped elastic steel plate 6 is set below the lifting plate 5, and a sealing gasket 601 is bonded and fixed to the bottom of the arc-shaped elastic steel plate 6.

[0036] The arc adjustment component is installed between the arc-shaped elastic steel plate 6 and the lifting plate 5. The arc-shaped elastic steel plate 6 is used to drive the sealing gasket 601 to press and seal the leak hole on the outside of the natural gas pipeline when the lifting plate 5 moves down, so as to temporarily plug the leak. The arc adjustment component is used to flexibly adjust the arc of the arc-shaped elastic steel plate 6 according to the arc of the outside of the natural gas pipeline of different diameters.

[0037] Specifically, the hook-and-loop support assembly includes an elastic steel band 3, with hooks 301 welded and fixed to both ends of the elastic steel band 3. The hooks 301 are movably hung on the lowest support shaft 201 among multiple support shafts 201. The hooks 301 and the elastic steel band 3 work together to hang one hook 301 on the support shaft 201 at the corresponding height, and then pull another hook 301 to move the elastic steel band 3 to wrap around the outside of the natural gas pipeline. Then, another hook 301 is hung on the support shaft 201 at the corresponding height on the other side. The setting of multiple support shafts 201 allows personnel to flexibly select the hanging height of the hooks 301 according to the different outer diameters of the natural gas pipeline, improving applicability. The natural gas pipeline is supported by pulling with two elastic steel bands 3.

[0038] Furthermore, the threaded vertical guide drive assembly includes four vertical guide rods 403 fixedly connected to the top of the lifting plate 5 in a rectangular shape. The support plate 1 is slidably sleeved on the four vertical guide rods 403. The top of the support plate 1 has four vertical guide holes that are slidably fitted to the outer side of the corresponding vertical guide rods 403, which serve to guide the vertical sliding of the vertical guide rods 403. A stainless steel nut 4 is embedded and fixedly installed on the top of the support plate 1. The top of the support plate 1 has an embedding hole that is welded and fixed to the outer side of the stainless steel nut 4. A stainless steel external thread tube 401 with its bottom end rotatably connected to the top of the lifting plate 5 is threaded on the inner thread of the stainless steel nut 4. A first bearing is fixedly connected to the top of the lifting plate 5. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the stainless steel external thread tube 401, which serves to rotatably install the stainless steel external thread tube 401. Handle rods 402 are welded and fixed to the top of both sides of the stainless steel external thread tube 401.

[0039] The vertical guide rod 403, stainless steel nut 4, stainless steel external threaded tube 401 and handle 402 are set up to cooperate. By pulling the handle 402, the stainless steel external threaded tube 401 is driven to rotate. The stainless steel external threaded tube 401 rotates in the stainless steel nut 4 and moves downward or upward. When the stainless steel external threaded tube 401 moves downward, it drives the lifting plate 5 to move downward. The lifting plate 5 drives the four vertical guide rods 403 to move vertically in the support plate 1 to perform vertical guiding work, so as to achieve the effect of driving the lifting plate 5 to move vertically up and down for adjustment.

[0040] Furthermore, the arc adjustment component includes a connecting seat 502 hinged to the top of the arc-shaped elastic steel plate 6. A T-shaped screw 503 is rotatably mounted on the top of the connecting seat 502. A second bearing is fixedly connected to the top of the connecting seat 502. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the T-shaped screw 503, which serves to rotatably mount the T-shaped screw 503. A stainless steel external threaded tube 401 is movably sleeved on the T-shaped screw 503 and does not contact the outer side of the T-shaped screw 503. A lifting plate 5 is threadedly sleeved on the T-shaped screw 503. The top of the lifting plate 5 has a threaded hole that is threadedly connected to the T-shaped screw 503. The threaded connection between the T-shaped screw 503 and the threaded hole facilitates the vertical displacement when the T-shaped screw 503 rotates. Four inclined connecting rods 501 are rectangularly hinged between the bottom of the lifting plate 5 and the top of the arc-shaped elastic steel plate 6. Two connecting rods 501 on the left and right are symmetrically arranged and form an inward V-shape.

[0041] The connecting seat 502, T-shaped screw 503, and connecting rod 501 work together to move the arc-shaped elastic steel plate 6 downwards via the four connecting rods 501 when the lifting plate 5 moves downwards, thus performing a pressing and sealing operation. The four connecting rods 501, with two opposite rods 501 symmetrically arranged in an inward V-shape, achieve a mutual pulling and restraining effect on both sides, preventing the arc-shaped elastic steel plate 6 from tilting and achieving a stable supporting and compressing effect. The T-shaped screw 503 is rotated within the lifting plate 5. The T-shaped screw 503 rotates on top of the connecting seat 502 and drives the connecting seat 502 to move upward. The connecting seat 502 pulls and causes the middle part of the arc-shaped elastic steel plate 6 to bend upward. When the middle part of the arc-shaped elastic steel plate 6 bends upward, it drives the connecting rods 501 on both sides to rotate towards the middle, while still forming an eight-shaped support effect. At this time, the curvature of the arc-shaped elastic steel plate 6 changes, so as to achieve the effect of flexibly adjusting the curvature of the arc-shaped elastic steel plate 6 according to the curvature of the outer side of natural gas pipelines of different diameters, thereby improving applicability.

[0042] The usage method of this embodiment is as follows: When using the natural gas pipeline leak sealing device, carry the device to the location where the natural gas pipeline has a leak and needs to be sealed. Hang one hook 301 on the support shaft 201 at the corresponding height, then pull the other hook 301 to drive the elastic steel band 3 to wrap around the outside of the natural gas pipeline, and then hang it on the support shaft 201 at the corresponding height on the other side via another hook 301. The setting of multiple support shafts 201 allows personnel to flexibly select the hanging height of the hook 301 according to the different outer diameters of natural gas pipelines, improving applicability. The two elastic steel bands 3 are used to pull and support the natural gas pipeline. Pulling the handle 402 in the forward direction drives the stainless steel external threaded tube 401 to rotate. 1. Rotate and move downward within the stainless steel nut 4. When the stainless steel external threaded pipe 401 moves downward, it drives the lifting plate 5 to move downward. The lifting plate 5 drives the four vertical guide rods 403 to move vertically within the support plate 1 to perform vertical guiding work. When the lifting plate 5 moves downward, it drives the arc-shaped elastic steel plate 6 to move downward through the four connecting rods 501. The arc-shaped elastic steel plate 6 drives the sealing gasket 601 to move downward and press and seal it at the leak on the outside of the natural gas pipeline for temporary leak sealing work. By using the four connecting rods 501, and the two connecting rods 501 on the left and right sides are symmetrically set and form an inward V-shape, the mutual pulling and limiting effect on the left and right sides is achieved, avoiding the tilting phenomenon of the arc-shaped elastic steel plate 6, and achieving a stable support and squeezing effect on the arc-shaped elastic steel plate 6.

[0043] When the curvature of the arc-shaped elastic steel plate 6 needs to be adjusted due to the different curvatures of the outer sides of natural gas pipelines of different diameters, the T-shaped screw 503 is rotated so that it rotates in the threaded hole on the lifting plate 5 and moves upward independently. At this time, the T-shaped screw 503 rotates at the top of the connecting seat 502 and drives the connecting seat 502 to move upward. The connecting seat 502 pulls and drives the middle part of the arc-shaped elastic steel plate 6 to bend upward. When the middle part of the arc-shaped elastic steel plate 6 bends upward, it drives the connecting rods 501 on both sides to rotate towards the middle, while still forming an eight-shaped support effect. At this time, the curvature of the arc-shaped elastic steel plate 6 changes and drives the sealing gasket 601 to change its curvature as a whole. This achieves the effect of flexibly adjusting the curvature of the arc-shaped elastic steel plate 6 according to the curvature of the outer sides of natural gas pipelines of different diameters, making it convenient for sealing leaks on the outer sides of natural gas pipelines of different diameters and improving its applicability.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A natural gas pipeline leak sealing device, comprising a support plate (1), characterized in that: include: The support plate (1) has two fixed boxes (2) fixedly connected to both sides. Multiple support shafts (201) are fixedly connected at equal intervals between the front and rear inner walls of the fixed boxes (2). The hook sleeve support assembly consists of two sets used for supporting the natural gas pipeline and is respectively hung on the two lower support shafts (201). The lifting plate (5) is set below the support plate (1). The threaded vertical guide drive assembly is installed on the top of the lifting plate (5). The support plate (1) is sleeved on the threaded vertical guide drive assembly. An arc-shaped elastic steel plate (6) is set below the lifting plate (5), and a sealing gasket (601) is bonded and fixed to the bottom of the arc-shaped elastic steel plate (6); an arc adjustment component is installed between the arc-shaped elastic steel plate (6) and the lifting plate (5).

2. The natural gas pipeline leak sealing device according to claim 1, characterized in that: The hook sleeve support assembly includes an elastic steel strip (3), and hooks (301) are welded and fixed at both ends of the elastic steel strip (3). The hooks (301) are movably hung on the lowest support shaft (201) among the corresponding multiple support shafts (201).

3. A natural gas pipeline leak sealing device according to claim 1, characterized in that: The threaded vertical guide drive assembly includes four vertical guide rods (403) that are rectangularly fixed to the top of the lifting plate (5). The support plate (1) is slidably sleeved on the four vertical guide rods (403). A stainless steel nut (4) is embedded and fixed at the top of the support plate (1). A stainless steel external threaded tube (401) with its bottom end rotatably connected to the top of the lifting plate (5) is threaded on the stainless steel nut (4). Handle rods (402) are welded and fixed to the top of both sides of the stainless steel external threaded tube (401).

4. A natural gas pipeline leak-sealing device according to claim 3, characterized in that: The arc adjustment component includes a connecting seat (502) hinged to the top of the arc-shaped elastic steel plate (6). A T-shaped screw (503) is rotatably mounted on the top of the connecting seat (502). A stainless steel external threaded tube (401) is movably sleeved on the T-shaped screw (503) and does not contact the outside of the T-shaped screw (503). A lifting plate (5) is threaded on the T-shaped screw (503). Four inclined connecting rods (501) are rectangularly hinged between the bottom of the lifting plate (5) and the top of the arc-shaped elastic steel plate (6). Two connecting rods (501) on the left and right are symmetrically arranged and form an inward V-shape.

5. A natural gas pipeline leak sealing device according to claim 1, characterized in that: The two opposing fixed boxes (2) are both set with openings on their opposing sides and bottoms.

6. A natural gas pipeline leak-sealing device according to claim 1, characterized in that: The two fixed boxes (2) facing each other on the left and right are each welded with a fixed seat (202) on the side closest to each other. The bottom of the fixed seat (202) is fixedly connected to the top of the support plate (1).

7. A natural gas pipeline leak sealing device according to claim 4, characterized in that: The top of the lifting plate (5) is provided with a threaded hole for threaded connection with the T-shaped screw (503).

Images