Bird prevention device for high-voltage overhead transmission line

Abstract

The utility model relates to power transmission line protection technical field especially, a kind of high-voltage frame power transmission line anti-bird device, solve the problem that the anti-bird thorn in prior art can only cover partial area of tower, cannot effectively prevent birds to stay on overhead ground wire.A kind of high-voltage frame power transmission line anti-bird device, including two symmetrical arc hoops, two arc hoops are connected with side plate on both sides, two adjacent side plates are connected by locking structure, the two sides position of the side of two arc hoops away from each other is connected with several cone thorn.The utility model realizes the direct installation of device on overhead ground wire by arc hoop and locking structure, extends the bird habitat blind area to 1 to 2 meters from tower hanging point in anti-bird area, forms physical barrier with cone thorn, effectively prevents birds to stay and excrete, prevents bird droppings from polluting insulator, solves the problem that overhead ground wire cannot install anti-bird facility, improves line anti-bird damage capacity and power supply reliability.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line protection technology, and in particular to a bird-prevention device for high-voltage power transmission lines. Background Technology

[0002] High-voltage transmission lines are crucial infrastructure in power systems for long-distance, high-capacity power transmission. Typically erected outdoors at high altitudes, they are characterized by high voltage levels, strong transmission capacity, and wide coverage. Due to their long-term exposure to the natural environment, they are susceptible to the effects of weather, vegetation, and wildlife. Among these factors, bird damage has consistently been one of the major challenges hindering transmission line operation and maintenance. Birds' roosting, nesting, and defecation on transmission line towers or conductors can easily lead to insulator contamination, electrical short circuits, and even line tripping accidents, seriously threatening the safe and stable operation of the power grid.

[0003] Currently, bird-related prevention measures for transmission lines are relatively simple, generally involving installing bird spikes on the crossarms and tower body of poles to prevent birds from perching and nesting on the towers. However, this method has significant limitations: bird spikes only cover a localized area of ​​the tower and cannot effectively prevent birds from landing on the overhead ground wire. Practical experience shows that birds often choose to perch on the overhead ground wire 1 to 2 meters from the pole's anchor point. This area is far from the protection range of the bird spikes on the tower body and provides easy access to the surrounding environment, making it an ideal perching spot for birds. When birds defecate at this location, their droppings fall in a parabolic trajectory, easily dripping directly onto the insulator strings below, causing surface contamination of the insulators, reducing their insulation performance, and potentially triggering flashover discharge, resulting in line tripping.

[0004] Therefore, there is an urgent need to develop a bird-proof device for high-voltage transmission lines to fundamentally solve the technical problem of insulator contamination caused by birds defecating in key locations, and to improve the safety and stability of power grid operation. Utility Model Content

[0005] The purpose of this invention is to provide a bird-proof device for high-voltage transmission lines, which solves the problem that existing bird spikes can only cover a local area of ​​the tower and cannot effectively prevent birds from landing on the overhead ground wire.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A bird-prevention device for high-voltage transmission lines includes two symmetrically arranged arc-shaped sleeves. Side plates are connected to both sides of the two arc-shaped sleeves. The two adjacent side plates are connected by a locking structure. Several cone spikes are connected to both sides of the side of the two arc-shaped sleeves that are far apart from each other. Both of the aforementioned arc-shaped sleeves have removable anti-wear insulating protective sleeves inside.

[0007] Preferably, the inner wall of the arc-shaped sleeve is provided with a plurality of insertion slots, and the outer ring of the anti-wear insulating protective sleeve is fixedly connected with a plurality of insertion rods that are adapted to the insertion slots.

[0008] Preferably, each of the spikes is made of metal and is angled.

[0009] Preferably, both ends of the arc-shaped sleeve are provided with limiting rings for sealing the insertion groove, and the top of the arc-shaped sleeve is provided with a connecting rod, both ends of which are fixedly connected to the outer ring of the adjacent limiting ring.

[0010] Preferably, the bottom of the two top side plates is fixedly connected with a number of positioning rods, and the top of the two bottom side plates is provided with a number of positioning holes that are adapted to the positioning rods.

[0011] Preferably, the locking structure includes a U-shaped fixing frame, and the top side plate and the bottom side plate are provided with a plurality of mating grooves that are adapted to the horizontal end of the fixing frame on the opposite side. The mating grooves are provided with fixing holes, and the fixing frame is internally threaded with fixing screws that are adapted to the fixing holes.

[0012] This utility model has the following beneficial effects: Through the coordinated arrangement of two symmetrical arc-shaped sleeves, side plates, and a locking structure, it achieves a bird-prevention function that can be directly installed on the overhead ground wire. This solves the technical problem that existing bird spikes cannot be installed on the overhead ground wire, causing birds to stop and defecate 1 to 2 meters away from the hanging point, filling the long-standing gap in effective protection measures in this area. The detachable anti-wear insulating protective sleeve inside the arc-shaped sleeve not only buffers the contact stress between the metal parts and the ground wire, preventing mechanical wear and extending the service life of the ground wire, but also enhances the electrical safety of the device, avoiding electro-corrosion or discharge caused by poor metal contact. The cone spikes are arranged at both ends of the arc-shaped sleeve on the side away from the tower, forming an upward-radiating protective area that effectively drives away birds, preventing them from perching in critical locations, fundamentally reducing the possibility of bird droppings dripping onto the insulator, and lowering the risk of flashover tripping due to bird droppings contamination. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the positioning rod and positioning hole structure of this utility model; Figure 3 This is a schematic diagram of the insertion slot and insertion rod structure of this utility model; Figure 4 This is a schematic diagram of the docking groove and fixing hole structure of this utility model; Figure 5 This is a schematic diagram of the fixing screw and fixing frame structure of this utility model.

[0015] In the diagram: 1. Arc-shaped hoop; 2. Conical spike; 3. Side plate; 4. Limiting ring; 5. Connecting rod; 6. Positioning hole; 7. Positioning rod; 8. Insertion groove; 9. Anti-wear insulating protective sleeve; 10. Insertion rod; 11. Butt groove; 12. Fixing hole; 13. Fixing screw; 14. Fixing frame. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example 1 Please see Figure 1-5 As shown, a bird-prevention device for high-voltage transmission lines in this embodiment includes two symmetrically arranged arc-shaped sleeves 1. Side plates 3 are connected to both sides of the two arc-shaped sleeves 1. The two adjacent side plates 3 are connected by a locking structure. Several cone spikes 2 are connected to both sides of the side of the two arc-shaped sleeves 1 that are far apart from each other. Both arc-shaped sleeves 1 have removable anti-wear insulating protective sleeves 9 inside.

[0018] When installing the bird-proof device on the overhead ground wire of a high-voltage transmission line, firstly, two symmetrically arranged arc-shaped sleeves 1 are joined together from both sides and fitted onto the predetermined position on the overhead ground wire. Typically, an area within 1 to 2 meters of the tower hanging point where birds frequently perch is selected. At this time, both arc-shaped sleeves 1 have removable anti-wear insulating protective sleeves 9 pre-installed on their inner sides. These protective sleeves are made of elastic insulating material, effectively preventing direct contact between the arc-shaped sleeves 1 and the metal surface of the overhead ground wire, preventing wear on the ground wire due to friction during operation, and providing additional electrical insulation protection to prevent induced current leakage or partial discharge. Side plates 3 are connected to both sides of the two arc-shaped sleeves 1. When the two are joined together, the corresponding two sets of side plates... The plates 3 are fitted together, and then the adjacent side plates 3 are firmly connected by locking structures such as bolts and nuts, quick-locking buckles or clamping mechanisms, so that the entire device is stably fixed on the overhead ground wire. No welding, drilling or power outage work is required. The installation process can be completed by the operator using insulated tools while the power is on. Several cone spikes 2 are connected to both sides of the two arc-shaped sleeves 1 that are far apart from each other. After the device is installed, these cone spikes 2 extend outward and upward in a radial pattern to form a physical barrier, effectively preventing birds from landing, staying or defecating in the area where the arc-shaped sleeves 1 are located. This forces birds away from this critical section, thereby preventing their droppings from falling vertically or parabolically onto the insulator string below, achieving effective protection for the insulator.

[0019] Example 2 Please see Figure 1-5 As shown in this embodiment, a bird-prevention device for high-voltage transmission lines has several insertion slots 8 on the inner wall of an arc-shaped sleeve 1. Several insertion rods 10 that are compatible with the insertion slots 8 are fixedly connected to the outer ring of an anti-wear insulating protective sleeve 9. Specifically, through the cooperative arrangement of the insertion slots 8 and the insertion rods 10, the insertion rods 10 of the outer ring of the anti-wear insulating protective sleeve 9 are inserted into the insertion slots 8 on the inner wall of the arc-shaped sleeve 1, achieving quick alignment and fixed connection between the two. This facilitates the installation and replacement of the anti-wear insulating protective sleeve 9, while enhancing its connection stability on the inner wall of the arc-shaped sleeve 1, preventing displacement or detachment due to vibration or thermal expansion and contraction during operation.

[0020] Both ends of the arc-shaped sleeve 1 are provided with limiting rings 4 for sealing the insertion slots 8. The top of the arc-shaped sleeve 1 is provided with a connecting rod 5. Both ends of the connecting rod 5 are fixedly connected to the outer ring of the adjacent limiting ring 4. Specifically, through the cooperative arrangement of the limiting rings 4 and the connecting rod 5, the limiting rings 4 are installed at both ends of the arc-shaped sleeve 1 to seal the ports of the insertion slots 8 and prevent the insertion rod 10 from coming out. Both ends of the connecting rod 5 are fixedly connected to the limiting rings 4, which enhances the structural linkage between the two limiting rings and achieves the effect of further restraining the axial displacement of the anti-wear insulating protective sleeve 9, improving the overall structural stability and anti-fall-off capability.

[0021] Example 3 Please see Figure 1-5 As shown in the figure, in this embodiment of a high-voltage transmission line bird prevention device, each spike 2 is made of metal and is inclined. Specifically, by combining the metal spike 2 with the inclined arrangement, the use of metal material improves the structural strength and weather resistance of the spike 2, making it less prone to deformation or breakage in long-term outdoor environments. The inclined arrangement expands the protective coverage angle, forming a more effective three-dimensional barrier area, thereby enhancing the bird deterrent effect, extending the service life, and effectively preventing birds from approaching and landing.

[0022] Several positioning rods 7 are fixedly connected to the bottom of the two top side plates 3, and several positioning holes 6 that are adapted to the positioning rods 7 are opened on the top of the two bottom side plates 3. Specifically, through the cooperative arrangement of the positioning rods 7 and the positioning holes 6, when the two arc-shaped sleeves 1 are closed, the positioning rods 7 on the top side plate 3 are inserted into the corresponding positioning holes 6 on the bottom side plate 3, so as to achieve precise alignment of the upper and lower side plates, thereby improving installation efficiency, ensuring the alignment of the two side plates to facilitate the smooth installation of the locking structure, and enhancing the reliability of the connection.

[0023] The locking structure includes a U-shaped fixing frame 14. Several mating grooves 11, which are adapted to the horizontal ends of the fixing frame 14, are provided on the opposite sides of the top and bottom side plates 3. Fixing holes 12 are provided inside the mating grooves 11. A fixing screw 13, adapted to the fixing holes 12, is threaded into the inside of the fixing frame 14. Specifically, through the coordinated arrangement of the U-shaped fixing frame 14, mating grooves 11, fixing holes 12, and fixing screw 13, the horizontal end of the U-shaped fixing frame 14 is inserted into the mating grooves 11 on the top and bottom side plates 3, covering the connection area of ​​adjacent side plates 3. Then, the fixing screw 13 is screwed in, passing through the fixing frame 14 and into the fixing holes 12. This achieves a secure locking between the side plates 3, enhances connection strength and anti-loosening ability, and facilitates disassembly and maintenance.

[0024] When installing the bird-proof device on the overhead ground wire of a high-voltage transmission line, firstly, open the two symmetrically arranged arc-shaped sleeves 1 from both sides. Pre-connect the wear-resistant insulating protective sleeve 9 by inserting the plug-in rod 10 fixed to its outer ring into the plug-in groove 8 on the inner wall of the arc-shaped sleeve 1 to complete the detachable connection, ensuring the protective sleeve fits completely against the metal inner wall. Then, assemble the two arc-shaped sleeves 1 with protective sleeves and place them on the target location of the overhead ground wire, typically in a section where birds frequently perch, 1 to 2 meters from the tower hanging point. During the assembly process, the positioning rod 7 at the bottom of the top side plate 3 is accurately inserted into the corresponding positioning hole 6 at the top of the bottom side plate 3, achieving rapid alignment and limiting of the upper and lower side plates to prevent misalignment. Next, insert the two horizontal ends of the U-shaped fixing frame 14 into the top and bottom side plates 3 respectively. In the side-opening docking groove 11, the fixing frame 14 is connected across the adjacent side plate 3. Then, the fixing screw 13 is screwed in through the threaded hole of the fixing frame 14 and into the fixing hole 12 inside the docking groove 11. The pre-tightening force is gradually applied to achieve a firm connection between the side plates 3, thereby stably fixing the entire device to the overhead ground line without welding or power outage operations. The limiting rings 4 set at both ends of the arc-shaped sleeve 1 seal the port of the plug-in groove 8. Together with the top connecting rod 5, the structural rigidity between the limiting rings 4 is enhanced to prevent the plug-in rod 10 from axially dislodging. After installation, multiple metal cones 2 arranged at both ends of the two arc-shaped sleeves 1 on the side away from each other extend upward at an inclined state to form a multi-angle three-dimensional protection area, which effectively prevents birds from stepping, perching or excreting in this area and avoids bird droppings from contaminating the insulator string below.

[0025] This device, through the cooperation of the arc-shaped clamp 1 with the side plate 3, the U-shaped fixing frame 14, the fixing screw 13, the docking groove 11, and the fixing hole 12, achieves a mechanical fixing method that can be directly installed on the overhead ground wire, solving the technical problem that existing bird-proofing measures cannot cover the 1-2 meter blind zone of the overhead ground wire; the wear-resistant insulating protective sleeve 9 achieves rapid assembly through the cooperation of the plug-in rod 10 and the plug-in groove 8, and combined with the constraint structure of the limit ring 4 and the connecting rod 5, significantly improves the installation stability and anti-fall-off ability of the protective sleeve, effectively preventing the arc-shaped clamp 1 from causing mechanical wear and electrical corrosion to the overhead ground wire; positioning rod The cooperation between 7 and positioning hole 6 ensures precise alignment when the two arc-shaped sleeves 1 are closed, improving on-site installation efficiency and connection reliability; the locking structure formed by the U-shaped fixing frame 14 and fixing screw 13 has high strength and anti-loosening characteristics, adapts to high-altitude vibration environment, and ensures long-term operational safety; the metal material and inclined cone spikes 2 have excellent weather resistance and structural strength, and the three-dimensional barrier formed can continuously and effectively drive away birds, prevent them from staying and defecating in key areas, greatly reduce the risk of insulator flashover tripping caused by bird droppings, and improve the power supply reliability and operational safety of high-voltage transmission lines.

[0026] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bird-prevention device for high-voltage transmission lines, characterized in that, include: Two symmetrically arranged arc-shaped sleeves (1), each of the two arc-shaped sleeves (1) is connected to a side plate (3), and the two adjacent side plates (3) are connected by a locking structure. Several conical spikes (2) are connected to both sides of the two arc-shaped sleeves (1) on the side that is far apart from each other. Both of the arc-shaped sleeves (1) have detachable anti-wear insulating protective sleeves (9) inside.

2. The bird-prevention device for high-voltage transmission lines according to claim 1, characterized in that, The inner wall of the arc-shaped sleeve (1) is provided with several insertion slots (8), and the outer ring of the anti-wear insulating protective sleeve (9) is fixedly connected with several insertion rods (10) that are compatible with the insertion slots (8).

3. The bird-prevention device for high-voltage transmission lines according to claim 1, characterized in that, Each of the spikes (2) is made of metal and is arranged at an angle.

4. A bird-prevention device for high-voltage transmission lines according to claim 2, characterized in that, Both ends of the arc-shaped sleeve (1) are provided with limiting rings (4) for sealing the insertion groove (8), and the top of the arc-shaped sleeve (1) is provided with a connecting rod (5). Both ends of the connecting rod (5) are fixedly connected to the outer ring of the adjacent limiting ring (4).

5. A bird-prevention device for high-voltage transmission lines according to claim 3, characterized in that, Several positioning rods (7) are fixedly connected to the bottom of the two side plates (3) at the top, and several positioning holes (6) that are adapted to the positioning rods (7) are opened on the top of the two side plates (3) at the bottom.

6. A bird-prevention device for high-voltage transmission lines according to claim 5, characterized in that, The locking structure includes a U-shaped fixing frame (14). The top side plate (3) and the bottom side plate (3) are provided with several mating grooves (11) that are adapted to the horizontal end of the fixing frame (14). The mating grooves (11) are provided with fixing holes (12). The fixing frame (14) is threaded with fixing screws (13) that are adapted to the fixing holes (12).

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