A connecting piece for lightning and static electricity protection of roofing gas pipeline

Abstract

The utility model relates to gas pipeline technical field discloses a kind of connecting piece for roofing gas pipeline lightning protection and static electricity prevention, including connecting steel pipe and gas pipeline, the side surface welding of connecting steel pipe has flat steel, the top sliding connection of flat steel has disconnecting card, the inside fixed connection of disconnecting card has installation shell, the inside installation of installation shell has positioning assembly, the end fixed connection of connecting steel pipe has connecting shell, the inside installation of connecting shell has docking assembly, the end of gas pipeline is arranged in the inside of docking assembly;The positioning assembly includes fixed link, and the inside fixed connection of fixed link is in installation shell. In the utility model, moving plate drives block one and inserts flat steel slot, quickly connects disconnecting card, it is convenient for grounding resistance detection, connecting steel pipe and gas pipeline can be installed synchronously after docking, avoid later construction to destroy pipeline and anticorrosive layer, reduce construction difficulty, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, and in particular to a connector for lightning protection and static electricity prevention of roof gas pipelines. Background Technology

[0002] Lightning protection for gas pipelines is an important measure to ensure the safe operation of pipeline systems during thunderstorms. It mainly involves reliably grounding the metal pipelines or connecting them to a lightning protection network to guide the safe discharge of lightning current and prevent lightning strikes from causing fires or explosions. According to Article 4.3.14 of the "Code for Construction and Quality Acceptance of Indoor Gas Engineering in Urban Areas" (CJJ94-2009), if exposed steel gas pipelines on the roof are within the lightning protection range of the building, they must be connected to the lightning protection network at least every 25 meters, and the welded parts must be treated with anti-corrosion measures to ensure that the grounding resistance of any part of the pipeline does not exceed 10Ω, so as to ensure reliable connection and effective lightning protection.

[0003] To meet acceptance standards, there are currently two common practices: Method 1 involves welding galvanized flat steel to the gas pipeline after installation and then connecting it to the existing roof lining of the building. The weld is then protected against corrosion on-site. However, on-site welding can easily damage the gas pipeline, and the quality of on-site corrosion protection is difficult to control. Method 2 involves connecting the gas pipeline to the gas line using clamps after installation. Paint, rust, or oxide layers on the contact surface must be removed beforehand. However, this method can damage the anti-corrosion layer, increase the risk of corrosion, and if the paint, rust, or oxide layers on the contact surface are not thoroughly cleaned, it is difficult to achieve good lightning protection and anti-static effects.

[0004] Existing lightning protection schemes for gas pipelines can meet the acceptance specifications under strict construction conditions, but both common practices have certain risks. They not only increase the difficulty of lightning protection construction for roof gas pipelines, but also affect the project progress and shorten the effective construction period. Therefore, a connector for lightning protection and anti-static properties of roof gas pipelines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a connector for lightning protection and anti-static properties of roof gas pipelines, aiming to improve the problems of existing lightning protection schemes having risks, increasing the difficulty of lightning protection construction, and affecting the progress of projects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connector for lightning protection and anti-static properties of roof gas pipelines includes a connecting steel pipe and a gas pipeline. A flat steel bar is welded to the side of the connecting steel pipe, and a disconnect clamp is slidably connected to the top of the flat steel bar. An installation shell is fixedly connected inside the disconnect clamp, and a positioning component is installed inside the installation shell. A connecting shell is fixedly connected to the end of the connecting steel pipe, and a docking component is installed inside the connecting shell. The end of the gas pipeline is located inside the docking component. The positioning component includes a fixing rod, which is fixedly connected inside the installation shell. A movable plate is slidably connected to the outer side of the fixing rod. A locking block is fixedly connected to the side of the movable plate, and a moving block is fixedly connected to the top of the movable plate. A spring is sleeved around the outer periphery of the fixing rod and is located on the side of the movable plate.

[0008] As a further description of the above technical solution:

[0009] The flat steel has a slot inside, and the locking block engages with the slot.

[0010] As a further description of the above technical solution:

[0011] The docking assembly includes a connecting plate, which is fixedly connected inside the connecting shell. A fixing plate is fixedly connected inside the connecting shell. A spring telescopic rod is fixedly connected to the top of the fixing plate. A pressure plate is fixedly connected to the top of the spring telescopic rod. A second locking block is fixedly connected to the side of the gas pipeline.

[0012] As a further description of the above technical solution:

[0013] The connecting plate has a sliding groove and a second slot inside. The second slot is slidably connected inside the sliding groove, and the second slot and the second slot are engaged with each other.

[0014] As a further description of the above technical solution:

[0015] A protective pipe is fixedly connected to the end of the gas pipeline, and the protective pipe is located inside the connecting plate, the fixing plate and the pressure plate;

[0016] As a further description of the above technical solution:

[0017] The top of the mounting shell is fixedly connected to an upper plate, and a guide groove is provided inside the movable block. The upper plate is slidably connected inside the guide groove.

[0018] As a further description of the above technical solution:

[0019] The bottom of the mounting shell is fixedly connected to a lower plate, and a guide groove is provided inside the movable plate. The lower plate is slidably connected inside the guide groove.

[0020] As a further description of the above technical solution:

[0021] The bottom of the disconnect clip is fixedly connected to a positioning post, and the top of the flat steel is provided with a positioning hole, with the positioning post slidably connected inside the positioning hole.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the movable plate drives the card block to move outward and engage with the flat steel slot, realizing the quick connection between the disconnection card and the flat steel, which facilitates subsequent grounding resistance testing. Construction can be carried out simultaneously after the gas pipeline and the connecting steel pipe are connected, avoiding damage to the pipeline body and anti-corrosion layer during later construction and modification, effectively reducing the difficulty of roof lightning protection construction and improving construction efficiency.

[0024] 2. In this utility model, the second clamping block on the gas pipeline is slid into the connecting plate along the slide groove, and the connecting steel pipe is rotated to automatically align with the second clamping slot. Under the cooperation of the spring telescopic rod pushing the pressure plate, the pressure plate automatically clamps the clamping block into the clamping slot, completing the rapid connection between the connecting steel pipe and the gas pipeline. There is no need to use flanges or welding. The connection is stable, the operation is simple, the construction efficiency is improved, and it is convenient for simultaneous construction and shortens the construction period. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a connector for lightning protection and anti-static properties of roof gas pipelines proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a flat steel connector for lightning protection and antistatic properties of roof gas pipelines proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the disconnect clip for lightning protection and anti-static properties of roof gas pipelines proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of a movable block for a connection component used for lightning protection and anti-static properties of roof gas pipelines according to the present invention.

[0029] Figure 5 This is a schematic diagram of the installation shell of a connector for lightning protection and anti-static properties of roof gas pipelines proposed in this utility model.

[0030] Figure 6 This is a schematic diagram of the connecting plate of a connector for lightning protection and anti-static properties of roof gas pipelines proposed in this utility model.

[0031] Legend:

[0032] 1. Connecting steel pipe; 2. Flat steel; 3. Disconnecting clamp; 4. Mounting shell; 5. Connecting shell; 6. Gas pipeline; 7. Fixing rod; 8. Moving plate; 9. Locking block one; 10. Spring one; 11. Moving block; 12. Locking groove one; 13. Upper plate; 14. Guide groove one; 15. Lower plate; 16. Guide groove two; 17. Positioning post; 18. Positioning hole; 19. Connecting plate; 20. Fixing plate; 21. Spring telescopic rod; 22. Pressure plate; 23. Locking block two; 24. Sliding groove; 25. Locking groove two; 26. Protective pipe. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-4 This utility model provides an embodiment of a connector for lightning protection and anti-static properties of rooftop gas pipelines, comprising a connecting steel pipe 1 and a gas pipeline 6. A flat steel bar 2 is welded to the side of the connecting steel pipe 1. A grounding wire is integrally welded to the gas pipeline 6. The connecting steel pipe 1 uses a zinc-based anti-corrosion coating, specifically employing a primer and reinforcement layer anti-corrosion coating scheme: two coats of primer using a zinc-based anti-corrosion coating primer, each coat having a minimum dry film thickness ≥35μm; two coats of reinforcement layer using a composite reinforcement coating, each coat having a minimum dry film thickness ≥20μm for the external pipeline. A disconnect clip 3 is slidably connected to the top of the flat steel bar 2. An installation shell 4 is fixedly connected inside the disconnect clip 3, and a positioning component is installed inside the installation shell 4. A connecting shell 5 is fixedly connected to the end of the steel pipe 1. A docking assembly is installed inside the connecting shell 5, and the end of the gas pipeline 6 is located inside the docking assembly. The positioning assembly includes a fixing rod 7, which is fixedly connected inside the mounting shell 4. The fixing rod 7 is used to connect various structures to the mounting shell 4. A moving plate 8 is slidably connected to the outside of the fixing rod 7. A locking block 9 is fixedly connected to the side of the moving plate 8, and a moving block 11 is fixedly connected to the top of the moving plate 8. The moving block 11 is used to control the moving plate 8, causing it to move with the locking block 9. A spring 10 is sleeved on the outer periphery of the fixing rod 7. The spring 10 is located on the side of the moving plate 8. The pressure generated by the spring 10 and the moving plate 8 causes the locking block 9 to move outward. A slot 12 is opened inside the flat steel 2. The locking block 9 and the slot 12 are interlocked. The locking block 9 moves outward and is locked into the slot 12, fixing the disconnecting clip 3 to the flat steel 2.

[0035] Reference Figure 1 , Figure 2 and Figure 6 The docking assembly includes a connecting plate 19, which is fixedly connected inside the connecting shell 5. The connecting plate 19 is used to connect the gas pipeline 6 and the connecting steel pipe 1. A fixing plate 20 is fixedly connected inside the connecting shell 5. A spring telescopic rod 21 is fixedly connected to the top of the fixing plate 20. The spring telescopic rod 21 mainly consists of a spring and a telescopic rod, which is prior art and will not be described in detail here. A pressure plate 22 is fixedly connected to the top of the spring telescopic rod 21. The fixing plate 20 and the spring telescopic rod 21 work together to generate pressure. The pressure causes the pressure plate 22 to move towards the connecting plate 19. A locking block 23 is fixedly connected to the side of the gas pipeline 6. The connecting plate 19 has a sliding groove 24 and a locking slot 25 inside. The locking block 23 is slidably connected inside the sliding groove 24 and enters the connecting plate 19 from the sliding groove 24. The locking block 23 and the locking slot 25 interlock. The pressure plate 22 moves towards the connecting plate 19, locking the locking block 23 into the locking slot 25, thus fixing the gas pipeline 6 to the connecting steel pipe 1. A protective pipe 26 is fixedly connected to the end of the gas pipeline 6. The protective pipe 26 is located inside the connecting plate 19, the fixing plate 20, and the pressure plate 22, protecting the outer structure.

[0036] Reference Figures 2-5 The top of the mounting shell 4 is fixedly connected to an upper plate 13. A guide groove 14 is provided inside the movable block 11. The upper plate 13 is slidably connected inside the guide groove 14. The movement trajectory of the movable block 11 is limited by the cooperation between the upper plate 13 and the guide groove 14. The bottom of the mounting shell 4 is fixedly connected to a lower plate 15. A guide groove 16 is provided inside the movable plate 8. The lower plate 15 is slidably connected inside the guide groove 16. The movement trajectory of the movable plate 8 is supported and limited by the cooperation between the lower plate 15 and the guide groove 16. The bottom of the disconnect clip 3 is fixedly connected to a positioning post 17. A positioning hole 18 is provided on the top of the flat steel 2. The positioning post 17 is slidably connected inside the positioning hole 18. The position of the flat steel 2 and the disconnect clip 3 is fixed by the cooperation between the positioning post 17 and the positioning hole 18.

[0037] Working principle: Pinch the moving block 11 towards the center. The moving block 11 moves the center of the locking block 9 through the moving plate 8. Insert the positioning post 17 of the disconnection card 3 into the positioning hole 18 of the flat steel 2. Release the moving block 11. Under the pressure applied by the spring 10 to the moving plate 8, the moving plate 8 is forced to move the locking block 9 outward and lock into the slot 12 of the flat steel 2, realizing a quick connection between the disconnection card 3 and the flat steel 2. The disconnection card 3 facilitates grounding resistance testing. After connecting the connecting steel pipe 1 and the gas pipeline 6, construction can be carried out simultaneously to avoid damage to the gas pipeline 6 and the anti-corrosion layer caused by later construction. This effectively reduces the difficulty of lightning protection construction of the roof gas pipeline 6 and shortens the construction period.

[0038] Slide the second clamp 23 of the gas pipeline 6 into the groove 24 of the connecting plate 19, rotate the connecting steel pipe 1, and align the second clamp 23 with the second clamp groove 25 of the connecting plate 19. With the cooperation of the pressure applied by the spring telescopic rod 21 to the pressure plate 22, the pressure plate 22 is forced to move towards the connecting plate 19, and the second clamp 23 is inserted into the second clamp groove 25. Without the need for an additional flange, the gas pipeline 6 and the connecting steel pipe 1 can be quickly connected, which effectively improves the efficiency of use and shortens the construction period.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector for lightning protection and static electricity prevention of roof gas pipelines, comprising a connecting steel pipe (1) and a gas pipeline (6), characterized in that: The side of the connecting steel pipe (1) is welded with a flat steel (2), the top of the flat steel (2) is slidably connected with a disconnect clip (3), the inside of the disconnect clip (3) is fixedly connected with an installation shell (4), the inside of the installation shell (4) is installed with a positioning component, the end of the connecting steel pipe (1) is fixedly connected with a connecting shell (5), the inside of the connecting shell (5) is installed with a docking component, and the end of the gas pipeline (6) is located inside the docking component; The positioning component includes a fixing rod (7), which is fixedly connected inside the mounting shell (4). A movable plate (8) is slidably connected to the outside of the fixing rod (7). A locking block (9) is fixedly connected to the side of the movable plate (8). A movable block (11) is fixedly connected to the top of the movable plate (8). A spring (10) is sleeved on the outer periphery of the fixing rod (7). The spring (10) is located on the side of the movable plate (8).

2. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 1, characterized in that: The flat steel (2) has a slot (12) inside, and the locking block (9) is engaged with the slot (12).

3. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 1, characterized in that: The docking assembly includes a connecting plate (19), which is fixedly connected inside the connecting shell (5). A fixing plate (20) is fixedly connected inside the connecting shell (5). A spring telescopic rod (21) is fixedly connected to the top of the fixing plate (20). A pressure plate (22) is fixedly connected to the top of the spring telescopic rod (21). A second clamping block (23) is fixedly connected to the side of the gas pipeline (6).

4. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 3, characterized in that: The connecting plate (19) has a sliding groove (24) and a second slot (25) inside. The second slot (23) is slidably connected inside the sliding groove (24), and the second slot (23) and the second slot (25) are engaged with each other.

5. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 3, characterized in that: The gas pipeline (6) is fixedly connected to a protective pipe (26) at its end. The protective pipe (26) is located inside the connecting plate (19), the fixing plate (20) and the pressure plate (22).

6. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 1, characterized in that: The top of the mounting shell (4) is fixedly connected to an upper plate (13), and the interior of the movable block (11) is provided with a guide groove (14), and the upper plate (13) is slidably connected inside the guide groove (14).

7. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 1, characterized in that: The bottom of the mounting shell (4) is fixedly connected to a lower plate (15), and the interior of the movable plate (8) is provided with a guide groove (16), and the lower plate (15) is slidably connected inside the guide groove (16).

8. A connector for lightning protection and anti-static properties of rooftop gas pipelines according to claim 1, characterized in that: The bottom of the disconnecting clip (3) is fixedly connected to a positioning post (17), and the top of the flat steel (2) is provided with a positioning hole (18). The positioning post (17) is slidably connected inside the positioning hole (18).

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