A quick installation mechanism for cathodic protection of a natural gas pipeline

By using magnetic connection and protective cover design, the problem of easy corrosion of bolt fixing is solved, realizing the quick installation and stability of cathodic protection test piles for natural gas pipelines, and ensuring the long-term stability and convenient disassembly of the test piles.

CN224411914UActive Publication Date: 2026-06-26HENAN ZHONGYUAN NATURAL GAS DEVELOPMENT CO LTD HUIXIAN BRANCH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ZHONGYUAN NATURAL GAS DEVELOPMENT CO LTD HUIXIAN BRANCH
Filing Date
2025-05-22
Publication Date
2026-06-26

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Abstract

The utility model relates to a natural gas pipeline cathodic protection quick installation mechanism, including test pile body and concrete foundation, the bottom of test pile body is equipped with the mounting panel, is equipped with a plurality of through slots on the mounting panel, the mounting panel bottom is equipped with the locating block, and the mounting panel is butt joint on the concrete foundation, and the top of concrete foundation is equipped with the locating groove on the corresponding locating block, and the locating block is inserted in the locating groove, and the top of concrete foundation is rotatably provided with the pivot on the corresponding through slot, the fixed plate is fixedly connected to the pivot top, and the pivot and fixed plate are through the corresponding through slot and the fixed plate bottom surface is flush with the mounting panel top, after the pivot rotation 90 degrees, the fixed plate is perpendicular to the corresponding through slot and butt joint on the top of mounting panel, and the protective cover is slidably sleeved on the test pile body, and the protective cover is sleeved outside the mounting panel. The utility model can realize the quick dismounting of test pile body and the effective protection of fixed component, and is more practical.
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Description

Technical Field

[0001] This utility model belongs to the field of cathodic protection technology for natural gas pipelines, and specifically relates to a rapid installation mechanism for cathodic protection of natural gas pipelines. Background Technology

[0002] Cathodic protection for natural gas pipelines is an electrochemical protection technology designed to prevent pipeline damage due to corrosion. Its basic principle is to alter the electrochemical state of the pipeline surface, making the entire pipeline surface a cathode, thereby inhibiting metal oxidation and preventing corrosion. There are two main methods: sacrificial anode cathodic protection and impressed current cathodic protection. Currently, cathodic protection of natural gas pipelines often requires the installation of matching cathodic protection test piles. These test piles are essential devices in long-distance pipeline cathodic protection systems, primarily used for pipeline kilometer indication, cathodic protection effectiveness, and monitoring of operating parameters. When installing cathodic protection test piles, various fixing methods can be selected, such as burying or bolting, depending on the specific site conditions and requirements. When using bolt fixing, a concrete foundation must first be constructed at the installation location, and then the test pile is fixed to the concrete foundation using bolts. However, in practical applications, since the ends of the bolts and the matching nuts are often exposed when they are fixed, they are more susceptible to corrosion and damage from the external environment. The bolts are prone to failure and breakage, which reduces the stability of the test pile. Furthermore, the rusted and broken bolts are inconvenient to remove, which is not conducive to the rapid disassembly and replacement of the test pile in the future. This needs to be improved. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a rapid installation mechanism for cathodic protection of natural gas pipelines, which can realize quick disassembly and assembly of the test pile body and effective protection of fixed components, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rapid installation mechanism for cathodic protection of natural gas pipelines, comprising a test pile body and a concrete foundation. A square mounting plate is fixedly installed at the bottom of the test pile body. Several through slots are formed on the mounting plate around the periphery of the test pile body. A positioning block is fixedly installed at the bottom of the mounting plate. The mounting plate abuts against the top of the concrete foundation. A positioning groove is formed on the top of the concrete foundation corresponding to the positioning block. The positioning block is inserted into the positioning groove. A rotating shaft is rotatably installed on the top of the concrete foundation corresponding to the through slot. A fixing plate is fixedly connected to the top of the rotating shaft. Both the rotating shaft and the fixing plate pass through the corresponding through slots. Furthermore, the bottom surface of the fixing plate is flush with the top surface of the mounting plate. After the rotating shaft rotates 90 degrees, the fixing plate is perpendicular to the corresponding through groove and abuts against the top surface of the mounting plate. First magnetic blocks are embedded on both sides of the bottom of the fixing plate. A first permanent magnet is embedded on the top surface of the mounting plate corresponding to the first magnetic block. The first magnetic block and the corresponding first permanent magnet are magnetically connected. Second permanent magnets are embedded on the front, back, left, and right sides of the mounting plate. A protective cover is slidably fitted onto the test pile body. Second magnetic blocks are embedded on the inner walls of the front, back, left, and right sides of the lower part of the protective cover. The protective cover is fitted onto the outside of the mounting plate. The second magnetic blocks correspond to and are magnetically connected to the second permanent magnet on the same side.

[0005] Preferably, the positioning block is adapted to the positioning groove.

[0006] Preferably, the cross-sectional area of ​​the through groove is larger than the cross-sectional area of ​​the fixed plate.

[0007] Preferably, the protective cover is adapted to the mounting plate.

[0008] Preferably, the mounting plate, fixing plate, and protective cover are all made of aluminum foam.

[0009] Preferably, inverted U-shaped handles are fixed on both the left and right sides of the outer top of the protective cover.

[0010] Preferably, a limiting plate is fixedly sleeved on the test pile body, and a limiting rod is rotatably connected to the bottom of the horizontal part of the handle. When the top of the protective cover abuts against the bottom of the limiting plate, the bottom of the limiting rod is flush with the top of the limiting plate, and one end of the limiting rod can abut against the limiting plate.

[0011] The beneficial effects of this utility model are as follows: When installing the test pile, the mounting plate can be placed on the concrete foundation first, and the positioning block should be aligned with the corresponding positioning groove and inserted into place to achieve the initial positioning and installation of the test pile. At this time, both the rotating shaft and the fixing plate can pass through the corresponding through groove, and the bottom surface of the fixing plate is flush with the top surface of the mounting plate. Then, each fixing plate is rotated 90 degrees so that the fixing plate is perpendicular to the corresponding through groove, so that the fixing plate is offset from the corresponding through groove and presses against the top surface of the mounting plate. At this time, the first magnetic block on the fixing plate can be aligned with the corresponding first permanent magnet and magnetically connected. Thus, through the cooperation of the fixing plate pressing against the mounting plate and the magnetic connection between the first magnetic block and the first permanent magnet, the test pile can be further limited and fixed, and the installation is stable and reliable without affecting subsequent use. Next, lower the protective cover until it fits over the outside of the mounting plate. At this point, the second magnetic block aligns with the second permanent magnet and magnetically connects, fixing the protective cover in place. This allows for effective shielding and protection of the mounting plate and fixing plates during subsequent use, ensuring the long-term stability of the test pile. When disassembling the test pile, simply move the protective cover upwards to separate it from the mounting plate. Then, rotate each fixing plate 90 degrees to separate it from the mounting plate and align it with the corresponding through slot. Finally, remove the mounting plate from the concrete foundation. This allows for quicker installation and disassembly of the test pile while effectively shielding and protecting the mounting plate and fixing plates, ensuring long-term stability and making it more practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the lower front cross-sectional structure of this utility model;

[0014] Figure 3 This is a top sectional view of the lower part of the utility model.

[0015] Figure 4 This is a schematic diagram of the main structure of the lower part of the test pile body of this utility model;

[0016] Figure 5 This is a top view of the lower part of the test pile body of this utility model;

[0017] Figure 6 This is a schematic diagram of the main structural view of the concrete foundation of this utility model;

[0018] Figure 7 This is a top view of the concrete foundation of this utility model.

[0019] Figure 8 This is a schematic diagram of the right side of the protective cover of this utility model.

[0020] The numbers in the diagram are as follows: 1 is the test pile body, 2 is the concrete foundation, 3 is the mounting plate, 4 is the through groove, 5 is the positioning block, 6 is the positioning slot, 7 is the rotating shaft, 8 is the fixing plate, 9 is the first magnetic block, 10 is the first permanent magnet, 11 is the second permanent magnet, 12 is the protective cover, 13 is the second magnetic block, 14 is the handle, 15 is the limit plate, and 16 is the limit rod. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 8 As shown, a rapid installation mechanism for cathodic protection of natural gas pipelines includes a test pile body 1 and a concrete foundation 2. A square mounting plate 3 is fixed to the bottom of the test pile body 1. Several through slots 4 are opened through the mounting plate 3 around the test pile body 1. A positioning block 5 is fixed to the bottom of the mounting plate 3. The mounting plate 3 abuts against the top of the concrete foundation 2. A positioning groove 6 is opened on the top of the concrete foundation 2 corresponding to the positioning block 5. The positioning block 5 is inserted into the positioning groove 6. A rotating shaft 7 is rotatably installed on the top of the concrete foundation 2 corresponding to the through slot 4. A fixing plate 8 is fixedly connected to the top of the rotating shaft 7. Both the rotating shaft 7 and the fixing plate 8 pass through the corresponding through slot 4, and the bottom surface of the fixing plate 8 is flush with the top surface of the mounting plate 3. After the rotating shaft 7 rotates 90 degrees, the fixing plate 8 is perpendicular to the corresponding through slot 4 and abuts against the top surface of the mounting plate 3. First magnetic blocks 9 are embedded on both sides of the bottom of the fixing plate 8. A first permanent magnet 10 is embedded on the top surface of the mounting plate 3 corresponding to the first magnetic block 9. The first magnetic block 9 and the corresponding first permanent magnet 10 are magnetically attracted to each other. The mounting plate 3 is equipped with a second permanent magnet 11 on all four sides (front, back, left, and right). The test pile body 1 is fitted with a protective cover 12 that slides up and down. The inner walls of the four sides (front, back, left, and right) of the lower part of the protective cover 12 are equipped with a second magnetic block 13. The protective cover 12 is fitted on the outside of the mounting plate 3. The second magnetic block 13 corresponds to the second permanent magnet 11 on the same side and is magnetically connected.

[0023] When installing the test pile, the mounting plate 3 can be placed abutting against the concrete foundation 2, and the positioning block 5 should be aligned with the corresponding positioning slot 6 and inserted into place to achieve the initial positioning and installation of the test pile. At this time, the rotating shaft 7 and the fixing plate 8 can both pass through the corresponding through slot 4, and the bottom surface of the fixing plate 8 is flush with the top surface of the mounting plate 3. Then, each fixing plate 8 is rotated 90 degrees so that the fixing plate 8 is perpendicular to the corresponding through slot 4, so that the fixing plate 8 is offset from the corresponding through slot 4 and presses against the top surface of the mounting plate 3. At this time, the first magnetic block 9 on the fixing plate 8 can be aligned with the corresponding first permanent magnet 10 and magnetically connected. Thus, through the pressing of the mounting plate 3 by the fixing plate 8 and the magnetic connection between the first magnetic block 9 and the first permanent magnet 10, the test pile can be further limited and fixed, and the installation is stable and reliable without affecting subsequent use. Next, the protective cover 12 is lowered until it fits onto the outside of the mounting plate 3. At this point, the second magnetic block 13 can align with and magnetically connect with the second permanent magnet 11, fixing the protective cover 12 in place. This allows for effective shielding and protection of components such as the mounting plate 3 and the fixing plate 8 during subsequent use, ensuring the long-term stability of the test pile. When the test pile needs to be disassembled, simply move the protective cover 12 upwards to separate it from the mounting plate 3, then rotate each fixing plate 8 90 degrees to separate it from the mounting plate 3 and align it with the corresponding through groove 4. Finally, remove the mounting plate 3 from the concrete foundation 2. This allows for quicker installation and disassembly of the test pile while effectively shielding and protecting the mounting plate 3 and the fixing plate 8, ensuring the long-term stability of the test pile and making it more practical. Both the test pile body 1 and the concrete foundation 2 can be made using existing technologies. The positioning groove 6 and the rotating shaft 7 are pre-cut and installed on the concrete foundation 2. The first magnetic block 9 and the second magnetic block 13 can be made of conventional magnetic metal materials such as iron.

[0024] In this embodiment, the positioning block 5 is adapted to the positioning groove 6 to ensure that the positioning block 5 is smoothly inserted into the position and to cooperate in the positioning and installation of the test pile.

[0025] In this embodiment, the cross-sectional area of ​​the through groove 4 is larger than that of the fixing plate 8, so as to ensure that the fixing plate 8 can pass smoothly through the corresponding through groove 4 and cooperate to press and fix the mounting plate 3.

[0026] In this embodiment, the protective cover 12 is adapted to the mounting plate 3 to ensure that the protective cover 12 is smoothly fitted onto the outside of the mounting plate 3, thereby effectively shielding and protecting the mounting plate 3.

[0027] In this embodiment, the mounting plate 3, the fixing plate 8, and the protective cover 12 are all made of aluminum foam. Aluminum foam is an existing material with excellent corrosion resistance, damping and shock absorption characteristics, which can effectively ensure the service life of the corresponding components and play a certain role in shock absorption, making the test pile more stable when it is working.

[0028] In this embodiment, inverted U-shaped handles 14 are fixed on both the left and right sides of the outer top of the protective cover 12 to facilitate the lifting and lowering movement of the protective cover 12.

[0029] In this embodiment, a limiting plate 15 is fixedly sleeved on the test pile body 1. A limiting rod 16 is rotatably connected to the bottom of the horizontal part of the handle 14. When the top of the protective cover 12 abuts against the bottom of the limiting plate 15, the bottom of the limiting rod 16 is flush with the top of the limiting plate 15, and one end of the limiting rod 16 can abut against the limiting plate 15. Under normal circumstances, the limiting rod is parallel to the horizontal part of the handle 14 so as not to affect the gripping and use of the handle 14. However, when fixing the mounting plate 3, the protective cover 12 can be raised and moved to the limiting plate 15 first, and then the limiting rod 16 can be rotated 90 degrees so that it is perpendicular to the horizontal part of the handle 14. This allows one end of the limiting rod 16 to press against the top of the limiting plate 15, thereby fixing the protective cover 12 so as not to affect the fixing and installation operation of the mounting plate 3. After the mounting plate 3 is fixed, simply rotate the limiting rod 16 90 degrees again to disengage it from the limiting plate 15, thereby releasing the limit on the protective cover 12. This allows the protective cover 12 to slide smoothly to the outside of the mounting plate 3, covering and protecting the mounting plate 3, which makes installation easier.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid installation mechanism for cathodic protection of natural gas pipelines, comprising a test pile body and a concrete foundation, characterized in that, A square mounting plate is fixed to the bottom of the test pile body. Several through slots are formed on the mounting plate around the perimeter of the test pile body. A positioning block is fixed to the bottom of the mounting plate. The mounting plate abuts against the top of the concrete foundation. A positioning groove is formed on the top of the concrete foundation corresponding to the positioning block, and the positioning block is inserted into the positioning groove. A rotating shaft is rotatably mounted on the top of the concrete foundation corresponding to the through slot. A fixing plate is fixedly connected to the top of the rotating shaft. Both the rotating shaft and the fixing plate pass through the corresponding through slots, and the bottom surface of the fixing plate is flush with the top surface of the mounting plate. After the rotating shaft rotates 90 degrees... The fixing plate is perpendicular to the corresponding through groove and abuts against the top surface of the mounting plate. A first magnetic block is embedded on both sides of the bottom of the fixing plate. A first permanent magnet is embedded on the top surface of the mounting plate corresponding to the first magnetic block. The first magnetic block and the corresponding first permanent magnet are magnetically connected. A second permanent magnet is embedded on the front, back, left, and right sides of the mounting plate. A protective cover is slidably fitted onto the test pile body. A second magnetic block is embedded on the inner wall of the front, back, left, and right sides of the lower part of the protective cover. The protective cover is fitted onto the outside of the mounting plate. The second magnetic block corresponds to and is magnetically connected to the second permanent magnet on the same side.

2. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 1, characterized in that, The positioning block is adapted to the positioning slot.

3. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 1, characterized in that, The cross-sectional area of ​​the through groove is larger than the cross-sectional area of ​​the fixed plate.

4. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 1, characterized in that, The protective cover is compatible with the mounting plate.

5. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 1, characterized in that, The mounting plate, fixing plate, and protective cover are all made of aluminum foam.

6. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 1, characterized in that, The protective cover has inverted U-shaped handles fixed on both the left and right sides of its outer top.

7. The rapid installation mechanism for cathodic protection of natural gas pipelines according to claim 6, characterized in that, A limiting plate is fixedly sleeved on the test pile body, and a limiting rod is rotatably connected to the bottom of the horizontal part of the handle. When the top of the protective cover abuts against the bottom of the limiting plate, the bottom of the limiting rod is flush with the top of the limiting plate, and one end of the limiting rod can abut against the limiting plate.