Anti-corrosion protective cover of natural gas pipeline connector

Abstract

The utility model relates to the field of pipeline protection, in particular to an anti-corrosion protective cover for a natural gas pipeline connector, which comprises a lower shell, an upper shell, a sliding rail and the like. The lower shell is rotationally connected with an upper shell, and fixing holes are formed in the lower shell and the upper shell; the lower shell and the upper shell are respectively provided with four through holes; a movable rod is connected to each through hole in a sliding manner; the inner wall of the through hole of the lower shell and the inner wall of the through hole of the upper shell are each fixedly connected with a plurality of sliding rails. The protective film wrapping the pipeline connector is isolated from the outside through the lower shell and the upper shell, the service life of the protective film is prolonged, the movable rod is pushed to slide in the through hole, so that the arc-shaped plate is driven to move to clamp and fix the two sides of the protective film at the pipeline connector, and compared with existing manual operation, the operation efficiency is improved. The tedious degree of operation when a pipeline connector is sealed and protected can be reduced, and the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection, and in particular to an anti-corrosion protective cover for a natural gas pipeline interface. Background Technology

[0002] Natural gas is usually transported through pipelines and is mainly used in chemical, metallurgical, pharmaceutical, and environmental protection fields.

[0003] Because natural gas is transported over long distances, it is usually transported using multiple pipeline segments spliced ​​together. To prevent corrosion and damage at the pipeline joints due to prolonged contact with external moisture, which could lead to natural gas leaks, a protective film is wrapped around the pipeline joints to protect them from external environmental influences and seal the joints. To enhance the sealing effect, wire and other tools are used to bind and seal the sides of the protective film to prevent external moisture from entering from the sides. However, even after binding and sealing, the protective film is still exposed to the outside environment and is easily affected by external environmental factors, thus shortening its service life. Furthermore, the process of binding and sealing with wire requires the use of other tools to tie and secure the film, which is cumbersome and labor-intensive. Subsequent repairs at the pipeline joints require untying the wire before repairs can be carried out, and the wire must be re-secured after maintenance, increasing the complexity and difficulty of maintenance. Therefore, binding and securing the protective film at the pipeline joints with wire is not only cumbersome and labor-intensive, but also inconvenient for subsequent maintenance.

[0004] In summary, this application proposes an anti-corrosion protective cover for natural gas pipeline interfaces, thereby improving the aforementioned technical problems. Utility Model Content

[0005] To overcome the drawbacks of using wire to bind and fix the protective film at the pipe joint, which is not only cumbersome and requires a lot of manpower, but also inconvenient for subsequent maintenance, this utility model provides a corrosion-resistant protective cover for natural gas pipeline joints.

[0006] The technical implementation scheme of this utility model is as follows: a corrosion-resistant protective cover for a natural gas pipeline interface, comprising a lower shell and an upper shell; the lower shell is rotatably connected to the upper shell, and the lower shell and the upper shell are provided with fixing holes; it also includes slide rails, sliders, arc plates, convex plates and movable rods; the lower shell and the upper shell each have four through holes; a movable rod is slidably connected to each through hole; several slide rails are fixedly connected to the inner walls of the through holes of the lower shell and the upper shell; a slider is slidably connected to each slide rail; each of the four adjacent sliders is jointly fixedly connected to an arc plate for fixing the protective film on both sides of the interface, and the arc plate corresponds to the movable rod; a convex plate is fixedly connected to each arc plate.

[0007] Optionally, it also includes a sealing plate; each movable rod is fixedly connected to a sealing plate, and the sealing plate is slidably connected at the through hole.

[0008] Optionally, it also includes a fixing plate, elastic telescopic rods, and clamping plates; a fixing plate is fixedly connected to each through hole; several elastic telescopic rods are fixedly connected to both sides of each fixing plate; and a clamping plate for clamping and fixing the movable rod is fixedly connected to the telescopic part of all the elastic telescopic rods on one side of each fixing plate.

[0009] Optionally, the clamping plate is provided with a protruding end, and the protruding end is provided with a chamfer.

[0010] Optionally, the width of the sealing plate is larger than the width of the through hole.

[0011] Optionally, sealing strips are provided at the front and rear sides of the lower and upper shells where they meet the natural gas pipeline.

[0012] Optionally, the sealing strip is detachably connected to the lower and upper housings.

[0013] This utility model has the following advantages:

[0014] The lower and upper shells isolate the protective film covering the pipe joint from the outside environment, improving the service life of the protective film. By pushing the movable rod to slide in the through hole, the arc plate moves to clamp and fix the protective film on both sides of the pipe joint. Compared with the existing manual operation, this reduces the complexity of sealing and protecting the pipe joint and improves the sealing effect.

[0015] The clamps can hold and fix the moved rod in place, preventing it from moving further and reducing the fixing effect of the curved plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-corrosion protective cover for the natural gas pipeline interface of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the lower and upper shells of the anti-corrosion protective cover for the natural gas pipeline interface of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the anti-corrosion protective cover for the natural gas pipeline interface of this utility model, which includes an upper shell, slide rail, slider, arc plate, convex plate, movable rod and sealing plate assembly.

[0019] Figure 4 This is a diagram showing the state of the arc-shaped plate moving and clamping of the anti-corrosion protective cover for the natural gas pipeline interface of this utility model.

[0020] Figure 5This is a schematic diagram of the structure of the fixed plate, elastic telescopic rod and clamping plate combination disclosed in the anti-corrosion protective cover for the natural gas pipeline interface of this utility model.

[0021] The meanings of the reference numerals in the figure are as follows: 1-lower shell, 2-upper shell, 3-slide rail, 4-slider, 5-arc plate, 6-convex plate, 7-moving rod, 8-sealing plate, 101-fixed plate, 102-elastic telescopic rod, 103-clamping plate, 01-through hole, 02-fixed hole, 10301-protruding end. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0023] Example 1

[0024] A corrosion-resistant protective cover for a natural gas pipeline interface, as shown in the reference. Figures 1-5 As shown, it includes a lower housing 1 and an upper housing 2; the lower housing 1 is rotatably connected to the upper housing 2, and the lower housing 1 and the upper housing 2 are provided with fixing holes 02;

[0025] It also includes a slide rail 3, a slider 4, an arc plate 5, a convex plate 6, and a movable rod 7; the lower housing 1 and the upper housing 2 each have four through holes 01; a movable rod 7 is slidably connected to each through hole 01; several slide rails 3 are fixedly connected to the inner walls of the through holes 01 of the lower housing 1 and the upper housing 2; a slider 4 is slidably connected to each slide rail 3; an arc plate 5 is fixedly connected to each of the four adjacent sliders 4, and the arc plate 5 corresponds to the movable rod 7; a convex plate 6 is fixedly connected to each arc plate 5.

[0026] It also includes a sealing plate 8; each movable rod 7 is fixedly connected to a sealing plate 8, and the sealing plate 8 is slidably connected at the through hole 01.

[0027] It also includes a fixing plate 101, elastic telescopic rods 102 and clamping plate 103; a fixing plate 101 is fixedly connected to each through hole 01; two elastic telescopic rods 102 are fixedly connected to each side of each fixing plate 101; and a clamping plate 103 is fixedly connected to the telescopic part of all elastic telescopic rods 102 on one side of each fixing plate 101.

[0028] The clamping plate 103 is provided with a protruding end 10301, and the protruding end 10301 is provided with a chamfer to facilitate the movement and engagement of the movable rod 7.

[0029] The sealing plate 8 is wider than the through hole 01, which can fully block and seal the through hole 01, improving the sealing performance after the movable rod 7 moves.

[0030] Sealing strips are provided on the front and rear sides of the lower shell 1 and the upper shell 2 where they fit with the natural gas pipeline. This ensures that the protective film at the pipeline interface is isolated from the outside environment, thereby improving its service life and thus extending the service life of the pipeline interface.

[0031] The sealing strip is detachably connected to the lower housing 1 and the upper housing 2, and can be disassembled and replaced when the sealing strip is damaged.

[0032] To prevent corrosion and damage to natural gas pipeline joints due to prolonged exposure to external moisture, a protective film is typically wrapped around the joint and sealed with wire to prevent moisture intrusion and gas leakage. However, the protective film remains exposed to the environment, making it susceptible to environmental influences and shortening its lifespan. Furthermore, the wire sealing process requires tools for securing the film, making it cumbersome, labor-intensive, and inconvenient for subsequent maintenance. Therefore, after manually wrapping the pipeline joint with the protective film, the upper casing 2 of this equipment is manually rotated open, and the lower casing 1 is fitted and attached to the underside of the natural gas pipeline. The pipe interface is positioned between the lower housing 1 and the upper housing 2. The upper housing 2 is then manually rotated and lowered to fit against the lower housing 1. Sealing strips are installed on the front and rear sides of both the lower housing 1 and the upper housing 2 where they meet the natural gas pipeline, isolating the protective film at the pipe interface from the outside environment. Bolts are then used to fix the fitted lower housing 1 and upper housing 2 through the fixing hole 02, sealing the protective film at the pipe interface. At this point, the protective film at the pipe interface is located at the center of the fitted lower housing 1 and upper housing 2. Next, the movable rod 7 is manually pushed to slide within the through hole 01. The movable rod 7 moves, contacting and pressing against the protruding plate 6 on the arc-shaped plate 5. As the movable rod 7 continues to move, it pushes the protruding plate 6, the arc-shaped plate 5, and the slider 4 along the slide rail 3. The movable rod 7 moves towards the center of the lower housing 1 and the upper housing 2. When the movable rod 7 cannot move within the through hole 01, the arc plate 5 moves to contact the protective film at the center of the lower housing 1 and the upper housing 2. By pushing several arc plates 5 to move, the protective film at the pipe interface is clamped and fixed on both sides, thereby sealing the protective film wrapped at the pipe interface. In this way, the lower housing 1 and the upper housing 2 isolate the protective film wrapped at the pipe interface from the outside world, improving the service life of the protective film. By pushing the movable rod 7 to slide within the through hole 01, the arc plate 5 moves to clamp and fix the protective film at both sides of the pipe interface. Compared with the existing manual operation, this reduces the cumbersome operation when sealing and protecting the pipe interface and improves the sealing effect. Meanwhile, as the movable rod 7 moves, when it contacts the protruding end 10301 of the clamping plate 103, it continues to push the movable rod 7 to move. The movement of the movable rod 7 pushes the clamping plate 103 apart, and the elastic telescopic rod 102 is stretched. When the movable rod 7 continues to move and fully enters the two clamping plates 103, it can no longer move in the through hole 01, and the movable rod 7 does not contact the protruding end 10301. The elastic telescopic rod 102 rebounds and resets, and drives the clamping plate 103 to move, clamping and fixing the movable rod 7 that cannot move. This, in turn, fixes the arc-shaped plates 5 on both sides of the clamping protective film. The clamping plate 103 can clamp and fix the moved movable rod 7 to prevent subsequent movement of the movable rod 7 and reduce the fixing effect of the arc-shaped plate 5.

[0033] Furthermore, when maintenance is required in the future, it is only necessary to manually push the two clamping plates 103 apart again, and then push the movable rod 7 to move and reset. The movable rod 7 drives the arc plate 5 to move and reset, stopping the clamping and fixing of the protective film on both sides. Then, the lower shell 1 and the upper shell 2 can be opened manually to maintain and replace the internal protective film.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A corrosion-resistant protective cover for a natural gas pipeline interface, comprising a lower housing (1) and an upper housing (2); the lower housing (1) is rotatably connected to the upper housing (2), and the lower housing (1) and the upper housing (2) are provided with fixing holes (02); characterized in that, It also includes slide rails (3), sliders (4), arc plates (5), convex plates (6) and movable rods (7); the lower housing (1) and the upper housing (2) each have four through holes (01); each through hole (01) is slidably connected to a movable rod (7); the inner walls of the through holes (01) of the lower housing (1) and the inner walls of the through holes (01) of the upper housing (2) are each fixedly connected to several slide rails (3); each slide rail (3) is slidably connected to a slider (4); each of the four adjacent sliders (4) is jointly fixedly connected to an arc plate (5) for fixing the protective film on both sides of the interface, and the arc plate (5) corresponds to the movable rod (7); each arc plate (5) is fixedly connected to a convex plate (6).

2. A corrosion-resistant protective cover for a natural gas pipeline interface according to claim 1, characterized in that, It also includes a sealing plate (8); each movable rod (7) is fixedly connected to a sealing plate (8), and the sealing plate (8) is slidably connected at the through hole (01).

3. A corrosion-resistant protective cover for a natural gas pipeline interface according to any one of claims 1-2, characterized in that, It also includes a fixing plate (101), elastic telescopic rods (102) and a clamping plate (103); a fixing plate (101) is fixedly connected to each through hole (01); several elastic telescopic rods (102) are fixedly connected to both sides of each fixing plate (101); and a clamping plate (103) for clamping and fixing the movable rod (7) is fixedly connected to the telescopic part of all the elastic telescopic rods (102) on one side of each fixing plate (101).

4. A corrosion-resistant protective cover for a natural gas pipeline interface according to claim 3, characterized in that, The clamp (103) is provided with a protruding end (10301), and the protruding end (10301) is provided with a chamfer.

5. A corrosion-resistant protective cover for a natural gas pipeline interface according to claim 4, characterized in that, The width of the sealing plate (8) is greater than the width of the through hole (01).

6. A corrosion-resistant protective cover for a natural gas pipeline interface according to claim 1, characterized in that, Sealing strips are provided on the front and rear sides of the lower shell (1) and upper shell (2) where they fit with the natural gas pipeline.

7. A corrosion-resistant protective cover for a natural gas pipeline interface according to claim 6, characterized in that, The sealing strip is detachably connected to the lower housing (1) and the upper housing (2).

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