Device for repairing anticorrosive coating of gas pipeline

Abstract

The device comprises a heat insulation shell, soldering iron and a scraping mechanism, the top face of the soldering iron is elastically connected with the inner top face of the heat insulation shell, the bottom face of the soldering iron is provided with an arc-shaped face matched with the side face of the pipeline, and the soldering iron is electrically connected with an external power source through a wire. And a scraping mechanism which is rotationally connected is arranged on one side of the exterior of the heat insulation shell. According to the device, through a mode of firstly heating and then scraping, the efficiency of cleaning the anticorrosive coating of the gas pipeline is improved, and the repair work of the anticorrosive coating of the pipeline is conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline maintenance, in particular to a device for repairing an anti-corrosion layer of a gas pipeline. Background Art

[0002] A gas pipe is a pipe specially used to transport combustible gas. During the use of the gas pipe, in order to extend the service life of the gas pipe, it is generally necessary to provide an anti-corrosion layer on the outer surface of the gas pipe. The material of the anti-corrosion layer is generally polyethylene or other corrosion-resistant materials. As the use time increases, the anti-corrosion layer is easily damaged, so it is necessary to repair the failed anti-corrosion layer area in time. Before repairing the anti-corrosion layer, it is necessary to scrape off the failed anti-corrosion layer first. The existing technology generally directly performs mechanical grinding using a grinder or other scraper. Since the anti-corrosion layer is not heated and softened, it is difficult to peel off, and the manual work efficiency is low; and the grinding process is prone to generate a lot of dust, which affects the working environment. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for repairing the anti-corrosion layer of a gas pipeline.

[0004] The technical solution of the utility model is: a device for repairing the anti-corrosion layer of a gas pipeline includes an insulating shell, a soldering iron and a scraping mechanism, the top surface of the soldering iron is elastically connected to the inner top surface of the insulating shell, the bottom surface of the soldering iron is provided with an arc surface that matches the side surface of the pipeline, the soldering iron is electrically connected to an external power supply through a wire, and a scraping mechanism with a rotatable connection is provided on one side of the outside of the insulating shell.

[0005] Furthermore, an integrated handle is provided on the top surface of the heat-insulating shell, and a wire groove for the wires to pass through is provided on the heat-insulating shell.

[0006] Furthermore, the top of the soldering iron is equipped with multiple connecting tubes, and the insulating shell is equipped with columns at positions corresponding to the connecting tubes. One end of the column is integrated with the insulating shell, and the other end passes through the top of the connecting tube. A spring is installed inside the connecting tube, with one end of the spring contacting the column and the other end contacting the soldering iron.

[0007] Furthermore, rollers are symmetrically distributed on both sides of the heat insulation shell near the scraping mechanism, and the cylindrical surfaces of the rollers are provided with anti-slip grooves.

[0008] Furthermore, a blade is provided on one end surface of the roller close to the heat insulation shell.

[0009] Furthermore, the scraping mechanism includes a rotating rod, a rotating shaft, and a fixed base. The two ends of the rotating shaft are rotatably connected to the protrusions on the heat-insulating shell, and the rotating rod is fixedly connected to the rotating shaft. A push handle is provided at the upper end of the rotating shaft, and a fixed base is provided at the lower end. A detachable scraper is provided on the fixed base.

[0010] Furthermore, the fixing seat is provided with a step that matches the scraper, the step is provided with a positioning column, the scraper is provided with a positioning hole that matches the positioning column, and the scraper is provided with a fixing bolt that passes through the scraper and is screwed into the fixing seat.

[0011] Compared with existing technologies, the advantages of this utility model are: using the soldering iron to heat and soften the anti-corrosion layer on the surface of the gas pipeline, facilitating the subsequent scraping of the anti-corrosion layer using a scraping mechanism, improving work efficiency, and eliminating dust pollution. The heat-insulating shell prevents the soldering iron from coming into contact with the outside world, preventing personal injury, while also preventing heat loss from the soldering iron and improving heat utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 This is an exploded view of the present utility model;

[0015] Figure 3 This is a cross-sectional view of the assembly of the heat insulation shell and the soldering iron of the utility model.

[0016] Among them: 1. Insulation shell; 2. Soldering iron; 3. Scraping mechanism; 11. Handle; 12. Roller; 13. Wire groove; 14. Column; 15. Bump; 111. Insulation sleeve; 121. Blade; 122. Anti-slip groove; 21. Arc surface; 22. Connecting tube; 221. Spring; 31. Rotating rod; 32. Rotating shaft; 33. Fixed seat; 34. Scraper; 311. Push handle; 331. Positioning column; 332. Step; 341. Positioning hole; 342. Fixing bolt. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described clearly and completely below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0018] The specific implementation of the present invention will be described below with reference to the accompanying drawings:

[0019] like Figures 1 to 3 As shown, a device for repairing the anti-corrosion coating of a gas pipeline includes an insulating shell 1, a soldering iron 2, and a scraping mechanism 3. The top surface of the soldering iron 2 is elastically connected to the inner top surface of the insulating shell 1. The bottom surface of the soldering iron 2 is provided with an arcuate surface 21 that mates with the side surface of the pipeline. The soldering iron 2 is electrically connected to an external power source via a wire. The top surface of the insulating shell 1 is provided with an integrated handle 11, through which the operator brings the soldering iron 2 into contact with the anti-corrosion coating. The insulating shell 1 is provided with a wire groove 13 for the wire to pass through. The wire passes through the wire groove 13 and is connected to the power source outside the insulating shell 1.

[0020] The curved surface 21 of the soldering iron 2 is convenient for matching the outer surface of the gas pipeline, and the anti-corrosion layer is fully heated and softened. The heat-insulating shell 1 can prevent the soldering iron 2 from contacting the outside world, reduce the probability of the heated soldering iron 2 damaging the operator, reduce heat loss, and improve the heat utilization efficiency of the soldering iron 2. A plurality of connecting cylinders 22 are provided on the top of the soldering iron 2, and a column 14 is provided at the position of the heat-insulating shell 1 corresponding to the connecting cylinder 22. One end of the column 14 is integrated with the heat-insulating shell 1, and the other end passes through the top of the connecting cylinder 22. A spring 221 is provided in the connecting cylinder 22, one end of the spring 221 contacts the column 14, and the other end contacts the soldering iron 2. When the operator applies pressure to the heat-insulating shell 1, the spring 221 is compressed, and the soldering iron 2 retracts into the heat-insulating shell 1. The constant elastic force of the spring 221 is used to make the soldering iron 2 stably fit with the anti-corrosion layer.

[0021] A rotatably connected scraping mechanism 3 is provided on one side of the exterior of the heat-insulating shell 1. The scraping mechanism 3 includes a rotating rod 31, a rotating shaft 32, and a fixed seat 33. The two ends of the rotating shaft 32 are respectively rotatably connected to the protrusions 15 on the heat-insulating shell 1, and the rotating rod 31 is fixedly connected to the rotating shaft 32. A push handle 311 is provided at the upper end of the rotating shaft 32, and a fixed seat 33 is provided at the lower end. A detachable scraper 34 is provided on the fixed seat 33. A step 332 is provided on the fixed seat 33 to cooperate with the scraper 34, a positioning column 331 is provided on the step 332, and a positioning hole 341 is provided on the scraper 34 to cooperate with the positioning column 331. The scraper 34 is quickly positioned on the step 332 through the cooperation of the positioning column 331 and the positioning hole 341. The scraper 34 is provided with a fixing bolt 342, which passes through the scraper 34 and is screwed into the fixed seat 33. When the anti-corrosion layer is softened by heat, the push handle 311 is pushed, and under the action of the lever principle, the scraper 34 scrapes and cleans the softened anti-corrosion layer.

[0022] The end of the insulation shell 1 near the scraping mechanism 3 is equipped with symmetrically spaced rollers 12. The cylindrical surfaces of these rollers 12 are equipped with anti-slip grooves 122. While the scraper 34 cleans the anti-corrosion layer, the entire device moves around the gas pipeline. The anti-slip grooves 122 on the rollers 12 prevent them from slipping, ensuring smooth movement of the entire device. The side of the rollers 12 near the insulation shell 1 is at a higher temperature, and the anti-corrosion layer softens significantly due to heat. A blade 121 is installed on the end of the roller 12 near the insulation shell 1, which allows for a smooth cut through the anti-corrosion layer along both sides of the device.

[0023] The working principle of the specific embodiment of the utility model is as follows: the operator holds the handle 11 and places the soldering iron 2 in contact with the anti-corrosion layer to be cleaned. Then, the operator connects the soldering iron 2 to an external power source and applies an external force to the heat-insulating shell 1, causing the soldering iron 2 to retract into the heat-insulating shell 1. After the anti-corrosion layer is heated and softened by the soldering iron 2, the operator pushes the push handle 311, causing the scraper 34 to contact the softened anti-corrosion layer. The scraper 34 moves with the entire device and cleans the softened anti-corrosion layer.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "upper," "lower," "left," "right," "front," "rear," and similar expressions used herein are for illustrative purposes only.

[0025] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for repairing the anti-corrosion layer of a gas pipeline, characterized by: The invention comprises a heat-insulating shell (1), a soldering iron (2) and a scraping mechanism (3); the top surface of the soldering iron (2) is elastically connected to the inner top surface of the heat-insulating shell (1); the bottom surface of the soldering iron (2) is provided with an arc-shaped surface (21) that matches the side surface of the pipe; the soldering iron (2) is electrically connected to an external power supply through a wire; and a rotatably connected scraping mechanism (3) is provided on one side of the outside of the heat-insulating shell (1).

2. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 1, characterized in that: An integrated handle (11) is provided on the top surface of the heat-insulating shell (1); and a wire groove (13) for the wire to pass through is provided on the heat-insulating shell (1).

3. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 1, characterized in that: The top of the soldering iron (2) is provided with a plurality of connecting tubes (22), and the heat-insulating shell (1) is provided with a column (14) at a position corresponding to the connecting tube (22); one end of the column (14) is integrated with the heat-insulating shell (1), and the other end passes through the top of the connecting tube (22); a spring (221) is provided in the connecting tube (22), one end of the spring (221) is in contact with the column (14), and the other end is in contact with the soldering iron (2).

4. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 1, characterized in that: One end of the heat-insulating shell (1) close to the scraping mechanism (3) is provided with rollers (12) symmetrically distributed on both sides, and the cylindrical surface of the roller (12) is provided with anti-slip grooves (122).

5. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 4, characterized in that: A blade (121) is provided on one end surface of the roller (12) close to the heat-insulating shell (1).

6. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 1, characterized in that: The scraping mechanism (3) comprises a rotating rod (31), a rotating shaft (32) and a fixed seat (33); the two ends of the rotating shaft (32) are respectively rotatably connected to the protrusions (15) on the heat-insulating shell (1), and the rotating rod (31) is fixedly connected to the rotating shaft (32); the upper end of the rotating shaft (32) is provided with a push handle (311), and the lower end is provided with the fixed seat (33); the fixed seat (33) is provided with a detachable scraper (34).

7. The device for repairing the anti-corrosion layer of a gas pipeline according to claim 6, characterized in that: The fixing seat (33) is provided with a step (332) that matches the scraper (34), the step (332) is provided with a positioning column (331), and the scraper (34) is provided with a positioning hole (341) that matches the positioning column (331); the scraper (34) is provided with a fixing bolt (342), and the fixing bolt (342) passes through the scraper (34) and is screwed into the fixing seat (33).

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