Lightning protection device of high-voltage line

Abstract

The utility model provides a lightning protection device for a high-voltage line. The lightning protection device comprises a main body mechanism and a mounting mechanism, the main body mechanism comprises a supporting frame and a lightning rod, the lightning rod is installed at the top of the supporting frame, a clamping plate is clamped to one side of the supporting frame, and first fixing holes are symmetrically formed in one side of the clamping plate and one side of the supporting frame; the mounting mechanism comprises a fixing frame and hoops, the hoops are symmetrically and fixedly connected to one side of the fixing frame, the fixing frame is fixedly connected to one side of the supporting frame, grounding flat iron is arranged on one side of the fixing frame, and a grounding rod is arranged at the bottom of the grounding flat iron; the lightning protection device is connected with the telegraph pole through the hoop, the lightning rod at the top end is higher than the top end of the telegraph pole by a certain distance, the lightning protection device is designed for a 10KV line power transmission line, the lightning protection principle of the lightning rod is adopted, the hoop fixing structure is additionally designed, and the clamping plate is matched with the supporting frame to fix the lightning protection steel strand. Thunder and lightning are led into the ground through the lightning rod.

Description

Technical Field

[0001] This utility model relates to a lightning protection device, and more particularly to a lightning protection device for high-voltage lines, belonging to the field of high-voltage line lightning protection technology. Background Technology

[0002] Mountainous terrain is complex and climate is changeable. Frequent lightning strikes cause power outages, disrupting the power supply to residents and businesses and severely impacting daily life and production. Currently, lightning protection devices are mainly concentrated on high-voltage transmission lines of 35KV and above, while lightning protection measures for low-voltage transmission lines of 10KV and below are inadequate.

[0003] Currently, the main lightning protection solutions for 10kV lines are erecting coupling ground wires, adding protective gaps, and installing zinc oxide surge arresters. However, these solutions all have certain drawbacks. While coupling ground wires can increase lightning current diversion and reduce the impact of lightning on the line, they cannot directly guide lightning and are only suitable for reducing equipment damage, not for protecting against line breakdown. Protective gaps, as passive protectors, can only be activated when the lightning impulse intensity reaches a certain level, and cannot effectively guide lightning or ensure that the line is not broken down. As for zinc oxide surge arresters, they are mainly used to protect equipment such as transformers and cannot provide direct protection for insulated conductors on the line. None of the above solutions can completely solve the problem of 10kV lines being broken down by lightning. There is a lack of solutions on the market that can effectively guide lightning and at the same time provide comprehensive protection for the line section.

[0004] To solve the above-mentioned technical problems, a lightning protection device for high-voltage lines is proposed. Utility Model Content

[0005] In view of this, the present invention provides a lightning protection device for high-voltage lines to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model is as follows: a lightning protection device for high-voltage lines, comprising a main body and an installation mechanism;

[0007] The main structure includes a support frame and a lightning rod. The lightning rod is installed on the top of the support frame. A clamping plate is engaged on one side of the support frame. The clamping plate and one side of the support frame are symmetrically provided with first fixing holes.

[0008] The installation mechanism includes a fixing frame and a clamp. The clamp is symmetrically fixedly connected to one side of the fixing frame, and the fixing frame is fixedly connected to one side of the support frame. A grounding flat iron is provided on one side of the fixing frame, and a grounding rod is provided at the bottom of the grounding flat iron.

[0009] More preferably, a second fixing hole is provided on one side of the fixing frame.

[0010] More preferably, a screw is fixedly connected to the bottom of the lightning rod, and the screw is threadedly connected to the support frame.

[0011] More preferably, a reinforcing plate is symmetrically fixedly connected to one side of the fixing frame, and one side of the reinforcing plate is fixedly connected to the support frame.

[0012] More preferably, a wire hole is provided on one side of the fixing frame.

[0013] More preferably, both the support frame and the fixing frame are made of galvanized steel.

[0014] More preferably, the clamp consists of two semi-circular clamps, both of which are threaded with fastening bolts.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This utility model connects to the utility pole via a clamp, making the lightning rod at the top of the pole a certain distance higher than the top of the pole. When lightning discharges between the cloud and the ground, it will choose the path of least resistance. Compared with surrounding low objects, lightning can more easily reach the ground through this shorter path. The electric field strength of the pointed part of the object is relatively large. Under the action of the strong electric field, the air around the pointed part of the object is more easily ionized, forming a plasma channel, which guides the lightning to discharge towards it. In this way, the lightning will preferentially strike the lightning rod. The lightning rod, through its good guidance, conducts the lightning to the ground through the grounding flat iron and grounding rod, thereby better protecting the safety of the line.

[0017] II. This utility model is designed for 10KV transmission lines. It adopts the principle of lightning rod protection and adds a clamp fixing structure and a clamp plate with a support frame to fix the lightning protection steel strand, so that the lightning is introduced into the ground through the lightning rod.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the clamping plate in this utility model;

[0022] Figure 3 This is a structural diagram of the fixing frame in this utility model;

[0023] Figure 4 This is a diagram showing the connection structure of the grounding flat iron in this utility model.

[0024] Reference numerals: 10. Main structure; 11. Support frame; 12. Lightning rod; 13. Screw; 14. First fixing hole; 15. Clamping plate; 20. Installation mechanism; 21. Fixing frame; 22. Clamping clamp; 23. Fastening bolt; 24. Second fixing hole; 25. Reinforcing plate; 26. Wire passage hole; 27. Grounding flat iron; 28. Grounding rod. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, this utility model embodiment provides a lightning protection device for high-voltage lines, which consists of a main body 10 and an installation mechanism 20.

[0028] The main structure 10 includes a support frame 11 and a lightning rod 12. The lightning rod 12 is installed on the top of the support frame 11. A clamping plate 15 is engaged on one side of the support frame 11. A gap is left between the clamping plate 15 and the support frame 11 for the lightning protection steel strand to pass through. The clamping plate 15 and the support frame 11 are symmetrically provided with first fixing holes 14 on one side.

[0029] In one embodiment, in order to facilitate the height adjustment of the lightning rod 12 according to the height of the utility pole, a screw 13 is fixedly connected to the bottom of the lightning rod 12. The screw 13 is threadedly connected to the support frame 11. Rotating the screw 13 can drive the lightning rod 12 to move and adjust its height.

[0030] In one embodiment, the lightning rod 12 is directly welded to the top of the support frame 11.

[0031] The installation mechanism 20 includes a fixing frame 21 and a clamp 22. The clamp 22 is symmetrically fixedly connected to one side of the fixing frame 21. The clamp 22 is composed of two semi-circular clamps, and fastening bolts 23 are threadedly connected to both sides of the clamp. The fixing frame 21 is fixedly connected to one side of the support frame 11. A grounding flat iron 27 is provided on one side of the fixing frame 21. A grounding rod 28 is provided at the bottom of the grounding flat iron 27. A second fixing hole 24 is opened on one side of the fixing frame 21. Both the support frame 11 and the fixing frame 21 are made of galvanized steel.

[0032] In one embodiment, to enhance the stability of the fixing frame 21, a reinforcing plate 25 is symmetrically fixedly connected to one side of the fixing frame 21, and one side of the reinforcing plate 25 is fixedly connected to the support frame 11.

[0033] In one embodiment, a wire-passing hole 26 is provided on one side of the fixing frame 21 to facilitate the passing of the lightning protection steel strand through the fixing frame 21.

[0034] In one embodiment, both the support frame 11 and the fixing frame 21 are made of copper-plated steel, galvanized flat iron, or other conductive metal materials.

[0035] In operation, the following steps are taken: The clamp 22 is fitted onto the top of the utility pole, and the fastening bolt 23 is rotated to tighten the clamp 22, thus fixing the position of the device. The lightning protection steel strand is placed in the support frame 11, and the clamp 15 is connected and fixed to the support frame 11 through the first fixing hole 14 and bolts, so that the lightning protection steel strand is located between the support frame 11 and the clamp 15. One end of the lightning protection steel strand is connected and fixed to the lightning rod 12, and the other end passes through the wire passage hole 26 of the fixing frame 21. The grounding flat iron 27 is connected and fixed to the fixing frame 21 through the second fixing hole 24 with bolts. The frame 21 is connected and fixed. The lightning protection steel strand is in contact with and connected to the grounding flat iron 27. The grounding flat iron 27 is driven down along the power pole and connected to the grounding rod 28. Then the grounding rod 28 is driven into the ground. When the cloud carries a large amount of charge, the charge accumulated at the tip of the lightning rod 12 is opposite to the charge of the cloud and can continuously neutralize the charge in the cloud, thereby preventing the building from being struck by lightning. If too much charge accumulates in the cloud and a lightning strike occurs, the lightning rod 12 can also use its good conductivity to conduct the lightning into the ground, thereby protecting the equipment.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A lightning protection device for high-voltage lines, characterized in that: It includes the main structure (10) and the installation structure (20); The main structure (10) includes a support frame (11) and a lightning rod (12). The lightning rod (12) is installed on the top of the support frame (11). A clamping plate (15) is engaged on one side of the support frame (11). The clamping plate (15) and the support frame (11) are symmetrically provided with first fixing holes (14) on one side. The installation mechanism (20) includes a fixing frame (21) and a clamp (22). The clamp (22) is symmetrically fixed to one side of the fixing frame (21). The fixing frame (21) is fixed to one side of the support frame (11). A grounding flat iron (27) is provided on one side of the fixing frame (21). A grounding rod (28) is provided at the bottom of the grounding flat iron (27).

2. The lightning protection device for high-voltage lines according to claim 1, characterized in that: A second fixing hole (24) is provided on one side of the fixing frame (21).

3. The lightning protection device for high-voltage lines according to claim 1, characterized in that: The bottom of the lightning rod (12) is fixedly connected to a screw (13), and the screw (13) is threadedly connected to the support frame (11).

4. A lightning protection device for high-voltage lines according to claim 1, characterized in that: A reinforcing plate (25) is symmetrically fixedly connected to one side of the fixed frame (21), and one side of the reinforcing plate (25) is fixedly connected to the support frame (11).

5. A lightning protection device for high-voltage lines according to claim 1, characterized in that: A wire hole (26) is provided on one side of the fixing bracket (21).

6. A lightning protection device for high-voltage lines according to claim 1, characterized in that: Both the support frame (11) and the fixing frame (21) are made of galvanized steel.

7. A lightning protection device for high-voltage lines according to claim 1, characterized in that: The clamp (22) consists of two semi-circular clamps, both of which are threaded with fastening bolts (23).

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