Bird prevention device for lightning conductor of power transmission line
By installing bird-proof devices on the conductors and using a combination of bird-proof poles, balance pipes, and bird spikes, the problems of easy detachment and limited protection range of existing bird-proof devices are solved, achieving stable bird dispersal and ensuring the safe operation and practicality of transmission lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUKANG GUOJIN ELECTRIC CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing bird deterrent devices have needles that are easy to detach, limited protection range, and some birds can still land on them, making them less practical.
A bird-proof device including a wire body was designed. Through the cooperation of the bird-proof mechanism and the installation mechanism, and by using a combination of bird-proof rod, balance tube, bird spike and counterweight, the device makes it difficult for birds to stand, disperses birds, and ensures a stable connection and protection range.
It significantly improves the stability and reliability of bird protection, ensures the normal operation of the conductor, reduces the risk of line failure caused by bird activity, and enhances the practicality of the device.
Smart Images

Figure CN224402737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bird-proof device, specifically a bird-proof device for lightning protection wires of power transmission lines, belonging to the field of line protection technology. Background Technology
[0002] Transmission lines are often equipped with lightning protection wires (overhead ground wires) above the conductors. Their main function is to intercept lightning strikes and protect the line. However, birds often perch, nest, or defecate on the lightning protection wires. Their activities may cause short circuits, tripping, or even equipment damage. Therefore, it is essential to install bird-proof devices (such as bird spikes and bird covers) on the lightning protection wires. These devices can effectively drive away birds, prevent bird-related faults, significantly improve the safety and reliability of line operation, and reduce power outage losses and maintenance costs.
[0003] A search revealed a Chinese patent with publication number CN222396801U that discloses a six-row needle pull-out wire anti-bird spike, comprising an upper plate and a lower plate, both of which are trapezoidal in shape. The upper plate has two inwardly rolled snap-fit pieces at its two open ends, and the lower plate has two outwardly flipped snap-fit pieces at its two open ends.
[0004] While the above solution avoids line tripping, there is still room for improvement in practical applications. The needles in the current device are only connected by movable mounting parts, which are not only susceptible to being knocked off by bird strikes or wind, but also have a limited protective range, only preventing some birds from roosting. Birds with special claw shapes can still land, thus reducing its practicality. To address these issues, we have provided a bird protection device for lightning protection wires of transmission lines. Utility Model Content
[0005] The purpose of this invention is to provide a bird-proof device for lightning protection wires of power transmission lines to solve the above-mentioned problems, thereby addressing the issues of easy detachment of needles in existing technologies, the continued ability of some birds to land, and low practicality.
[0006] This utility model is achieved through the following technical solution: a bird-proof device for lightning protection wires of transmission lines, including a conductor body, a bird-proof mechanism for protection is provided on the outside of the conductor body, the bird-proof mechanism includes a bird-proof rod, an installation tube is fixedly connected to the outer surface of the bird-proof rod, and a balance rotating tube is rotatably connected to the outer surface of the installation tube.
[0007] A connecting frame is fixedly connected to the outer surface of the balance tube, and a drop rod is fixedly connected to the inner wall of the connecting frame.
[0008] Preferably, a first bird spike is fixedly connected to the outer surface of the balancing tube, and a second bird spike is fixedly connected to the outer surface of the balancing tube. The first and second bird spikes are installed on the surface of the balancing tube by welding, and the surfaces of the first and second bird spikes are coated with an anti-corrosion coating, so that the two can stably repel birds.
[0009] Preferably, a connecting rod is fixedly connected to the outer surface of the balance tube, and a second counterweight is rotatably connected to the end of the connecting rod away from the balance tube. The connecting rod effectively limits the position of the second counterweight.
[0010] Preferably, the outside of the conductor body is provided with an installation mechanism, which includes a fixed base. The inner wall of the fixed base is fixedly connected to the conductor body. The fixed base is formed by two semi-circular shells hinged together by a pin. This design makes it easy for workers to install it onto the conductor body.
[0011] Preferably, the inner wall of the fixed base is rotatably connected to a fixed bracket, one end of which has a through hole. The inner wall of the through hole is fixedly connected to the bird-proof rod. There are two through holes at one end of the fixed bracket, so that the bird-proof rod can be inserted more comprehensively, avoiding any gaps that could cause birds to land.
[0012] Preferably, the outer surface of the fixed base is provided with a first fixing screw hole, and the inner wall of the fixed base is fixedly connected with anti-slip protrusions. The anti-slip protrusions can effectively increase the friction, thereby making the fixed base more secure when installed on the surface of the wire body.
[0013] Preferably, a first counterweight is rotatably connected to the end of the fixed bracket away from the bird-proof rod, and a second fixing screw hole is provided on the outer surface of the fixed bracket. The setting of the first counterweight can effectively reset the bird-proof mechanism, so that the components in the bird-proof mechanism are always above the wire body.
[0014] This utility model provides a bird-proof device for lightning protection wires of power transmission lines, which has the following beneficial effects:
[0015] 1. The bird-proof device for the lightning protection wire of this transmission line, through the coordinated arrangement of the components in the bird-proof mechanism, makes it difficult for different kinds of birds to stand firmly when landing, thereby effectively driving away the birds. This improvement not only significantly enhances the stability and reliability of the bird-proof effect, but also ensures the normal operation of the conductor itself, further improving the practicality of the device.
[0016] 2. The bird-proof device for the lightning protection wire of this transmission line, through the coordinated arrangement of components in the installation mechanism, not only provides stable support and limit for the bird-proof mechanism, but also prevents birds from standing firmly, thereby achieving the purpose of effectively repelling them. Through this dual composite function, it not only ensures the reliable connection and positioning of the device components, but also reduces the risk of flashover accidents caused by bird droppings, pecking, or carrying objects, effectively ensuring the insulation safety of the conductor body and the continuous and stable power supply. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the bird-proof mechanism of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the installation mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the anti-slip protrusion of this utility model.
[0021] [Explanation of Key Component Symbols]
[0022] 1. The conductor itself;
[0023] 2. Bird-proof mechanism; 201. Bird-proof rod; 202. Mounting tube; 203. Balance rotating tube; 204. Connecting frame; 205. Landing rod; 206. First bird spike; 207. Second bird spike; 208. Connecting rod; 209. Second counterweight;
[0024] 3. Installation mechanism; 301. Fixed base; 302. Fixed bracket; 303. Through hole; 304. First fixing screw hole; 305. Anti-slip protrusion; 306. First counterweight; 307. Second fixing screw hole. Detailed Implementation
[0025] This utility model provides a bird-proof device for lightning protection wires of power transmission lines.
[0026] Please see Figure 1 The device includes a conductor body 1, and a bird-proof mechanism 2 for protection is provided on the outside of the conductor body 1. The bird-proof mechanism 2 includes a bird-proof rod 201, an installation tube 202 is fixedly connected to the outer surface of the bird-proof rod 201, and a balance tube 203 is rotatably connected to the outer surface of the installation tube 202. A sealing ring is installed between the installation tube 202 and the balance tube 203. The sealing ring can effectively prevent external dust from entering between the two, thereby effectively ensuring the stability of the balance tube 203 rotating on the surface of the installation tube 202.
[0027] Please refer to it again. Figure 1 andFigure 2 A connecting frame 204 is fixedly connected to the outer surface of the balance rotating tube 203, and a landing rod 205 is fixedly connected to the inner wall of the connecting frame 204. When a bird lands on the landing rod 205, the balance rotating tube 203 will rotate around the mounting tube 202 as the axis by gravity, making it difficult for the bird to stand and effectively dispersing it.
[0028] A first bird spike 206 and a second bird spike 207 are fixedly connected to the outer surface of the balance tube 203. The first bird spike 206 and the second bird spike 207 are installed on the surface of the balance tube 203 by welding. The surfaces of the first bird spike 206 and the second bird spike 207 are coated with an anti-corrosion coating, so that they can stably repel birds. The first bird spike 206 and the second bird spike 207 can effectively lure birds to land on the landing bar 205. The first bird spike 206 and the second bird spike 207 are oriented in different directions to prevent birds from landing on the balance tube 203 or between the two balance tubes 203.
[0029] A connecting rod 208 is fixedly connected to the outer surface of the balance tube 203. A second counterweight 209 is rotatably connected to the end of the connecting rod 208 away from the balance tube 203. The connecting rod 208 effectively limits the second counterweight 209. The second counterweight 209 effectively resets the landing rod 205, ensuring that the two landing rods 205 remain horizontal with the bird-proof rod 201.
[0030] Please refer to it again. Figure 1 , Figure 3 and Figure 4 The conductor body 1 is provided with an installation mechanism 3 on its exterior. The installation mechanism 3 includes a fixed base 301. The inner wall of the fixed base 301 is fixedly connected to the conductor body 1. The fixed base 301 is formed by two semi-circular shells hinged together by a pin. This design makes it easy for workers to install it onto the conductor body 1.
[0031] A fixed bracket 302 is rotatably connected to the inner wall of the fixed base 301. A through hole 303 is provided at one end of the fixed bracket 302. The inner wall of the through hole 303 is fixedly connected to the bird-proof rod 201. The bird-proof rod 201 and the through hole 303 are fixed together by self-tapping screws. There are two through holes 303 at one end of the fixed bracket 302, so that the bird-proof rod 201 can be inserted more comprehensively, avoiding any gaps that may cause birds to land.
[0032] The outer surface of the fixed base 301 is provided with a first fixing screw hole 304, and the inner wall of the fixed base 301 is fixedly connected with an anti-slip protrusion 305. The anti-slip protrusion 305 can effectively increase the friction, so that the fixed base 301 is more firmly installed on the surface of the wire body 1. When installing the fixed base 301, first wrap the wire body 1 with anti-slip tape, then put the fixed base 301 on the center of the anti-slip tape, and then use a self-tapping screw to insert into the first fixing screw hole 304, so as to effectively and firmly install the fixed base 301 on the surface of the wire body 1.
[0033] The fixed bracket 302 is rotatably connected to a first counterweight 306 at the end away from the bird-proof rod 201. A second fixing screw hole 307 is provided on the outer surface of the fixed bracket 302. The first counterweight 306 effectively resets the bird-proof mechanism 2, so that the components in the bird-proof mechanism 2 are always above the wire body 1. After the second fixing screw hole 307 is fitted into the inner wall of the fixed base 301, a self-tapping screw is inserted into the second fixing screw hole 307, so that the fixed bracket 302 can be stably limited in the inner wall of the fixed base 301.
[0034] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.
[0035] Working principle: The fixed base 301 is fixed to the conductor body 1, then the fixed bracket 302 is fitted into the inner wall of the fixed base 301, and finally the bird-proof rod 201 is inserted into the through hole 303 to complete the installation. When a bird lands, the combined action of the first bird spike 206 and the second bird spike 207 can lure it to the landing rods 205 on both sides of the connecting frame 204. After the bird lands on the landing rod 205, it will press down on the landing rod 205 by its own weight. At this time, the landing rod 205 will rotate around the mounting tube 202 as the axis. The rotation of the landing rod 205 drives the connecting rod 20 The second counterweight 209 on one end of the bird-proof rod 201 swings. At the same time, in conjunction with the synergistic effect of the fixed base 301 and the fixed bracket 302, when the bird-proof rod 201 is subjected to the pressure transmitted by the mounting tube 202, it will swing synchronously around the fixed base 301 as the axis. The swing of the bird-proof rod 201 drives the first counterweight 306 on one end of the fixed bracket 302 to swing, so that birds cannot stand firmly when landing, effectively driving away birds. This not only significantly improves the stability and reliability of the bird-proof effect, but also ensures the normal operation of the wire body 1, further making the device more practical.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bird-proof device for lightning protection wires of power transmission lines, comprising a conductor body (1), characterized in that: The conductor body (1) is provided with a bird-proof mechanism (2) for protection. The bird-proof mechanism (2) includes a bird-proof rod (201). An installation tube (202) is fixedly connected to the outer surface of the bird-proof rod (201). A balance rotating tube (203) is rotatably connected to the outer surface of the installation tube (202). The outer surface of the balance tube (203) is fixedly connected to a connecting frame (204), and the inner wall of the connecting frame (204) is fixedly connected to a drop rod (205).
2. The bird-proof device for lightning protection wires of transmission lines according to claim 1, characterized in that: The outer surface of the balance tube (203) is fixedly connected with a first bird spike (206), and the outer surface of the balance tube (203) is fixedly connected with a second bird spike (207).
3. The bird-proof device for lightning protection wires of transmission lines according to claim 1, characterized in that: A connecting rod (208) is fixedly connected to the outer surface of the balance tube (203), and a second counterweight (209) is rotatably connected to the end of the connecting rod (208) away from the balance tube (203).
4. The bird-proof device for lightning protection wires of transmission lines according to claim 1, characterized in that: An installation mechanism (3) is provided on the outside of the conductor body (1). The installation mechanism (3) includes a fixed base (301), and the inner wall of the fixed base (301) is fixedly connected to the conductor body (1).
5. The bird-proof device for lightning protection wires of transmission lines according to claim 4, characterized in that: The inner wall of the fixed base (301) is rotatably connected to a fixed bracket (302), and one end of the fixed bracket (302) is provided with a through hole (303). The inner wall of the through hole (303) is fixedly connected to the bird-proof rod (201).
6. The bird-proof device for lightning protection wires of transmission lines according to claim 4, characterized in that: The outer surface of the fixed base (301) is provided with a first fixing screw hole (304), and the inner wall of the fixed base (301) is fixedly connected with an anti-slip protrusion (305).
7. The bird-proof device for lightning protection wires of transmission lines according to claim 5, characterized in that: The fixed bracket (302) is rotatably connected to a first counterweight (306) at the end away from the bird-proof rod (201), and a second fixing screw hole (307) is provided on the outer surface of the fixed bracket (302).