Anti-bird device for high-voltage transmission line
By designing a bird deterrent device with rotating blades and reflective materials, the problem of existing technologies being unable to effectively prevent birds of different sizes from perching on crossarms has been solved. This achieves efficient bird deterrence, reduces droppings accumulation, and ensures the safety of power transmission lines.
Patent Information
- Application Number
- CN202520427197.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In the existing technology, bird-proofing devices for high-voltage transmission lines cannot effectively prevent birds of different sizes from perching on crossarms, leading to the accumulation of droppings and causing short circuits in the lines.
A bird deterrent device consisting of a base, a pivot, and fan blades was designed. The fan blades rotate under the action of wind or the weight of the birds, forming a disc that covers the end of the crossarm. Combined with spring vibration and reflective material, it drives away birds and makes them land unstable due to the tilting design.
It effectively prevents birds from roosting on the crossbeams, reduces droppings accumulation, avoids short circuits, drives away birds through wind and reflection, adapts to the behavior of birds of different sizes, and improves bird control effectiveness.
Smart Images

Figure CN223830250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bird prevention technology for power transmission lines, and in particular to a bird prevention device for high-voltage power transmission lines. Background Technology
[0002] The crossarm of a high-voltage transmission line tower is the horizontal part that cantilevered out of the main structure of the tower. This part is used to suspend and support the high-voltage transmission line. Birds habitually perch or move around on this cantilevered part of the tower and excrete their droppings. The droppings flow through the insulators to the conductor side, causing a one-way grounding between the conductor and the crossarm, which triggers a trip.
[0003] The prior art provides a bird-proof device for a cement crossarm of a high-voltage transmission line, including a clamp-type base installed on a cylindrical cement crossarm and a bird-proof spike assembly installed on the clamp-type base. The clamp-type base includes a first arched clamp body, a second arched clamp body, and a first bolt assembly with identical structures. At corresponding positions at both ends of the first arched clamp body and the second arched clamp body, there are round holes for bolt connection. The first bolt assembly fixes the first bolt assemblies at both ends of the first arched clamp body and the second arched clamp body to the cement crossarm through the round holes at both ends of the clamp body.
[0004] The bird-proof spikes in the above-mentioned device are large at the top and small at the bottom. Smaller birds can crawl into the bottom of the spikes to build nests. Long-term roosting may cause the accumulation of droppings, which may lead to short circuits.
[0005] Therefore, it is necessary to provide a bird-proof device for high-voltage transmission lines to solve the above-mentioned technical problems. Utility Model Content
[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a bird-proof device for high-voltage transmission lines that can better prevent birds of different sizes from moving at the crossarm.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A bird-proof device for high-voltage transmission lines includes: a base, a rotating shaft rotatably mounted on the upper end of the base, several fan blades mounted on the upper end of the rotating shaft, several springs mounted on the base, and the other end of each spring mounted on a diagonal bar of a crossarm.
[0009] Preferably, the upper end of the rotating shaft is provided with a pointed tip, which is an inverted cone shape.
[0010] Preferably, the fan blade is flat, with a smooth surface, and is vertically mounted on the side wall of the rotating shaft.
[0011] Preferably, reflective material is provided on both sides of the fan blade.
[0012] Preferably, the base is a cuboid with four through holes on its surface, and one end of the spring is a hook that hangs in the through hole on the base.
[0013] Preferably, the other end of the spring is also provided with a hook.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] (1) When the fan blades of this utility model rotate, they form a disc that covers the end of the crossbeam, so that birds cannot perch on the end of the crossbeam. At the same time, the rotation of the fan blades causes the entire device to vibrate, and the spring is driven to vibrate. Thus, the entire device vibrates under the action of wind, thereby creating a certain driving effect on birds.
[0016] (2) Since the fan blades and the device are tilted, the weight of the bird or the inertia when it lands will push the fan blades to rotate slightly at a certain angle. The bird will stand on the fan blades and rotate with the fan blades. Since the bird is unstable when it lands, it will take off again. In this way, no matter the size of the bird, it can leave the crossbar when it lands on the fan blades.
[0017] (3) The fan blades of this utility model are provided with reflective materials on both sides. When the fan blades rotate, their angle with the sunlight changes at any time. The sunlight reflected by the fan blades also changes at any time. When the reflected light shines into the eyes of birds, it can have a certain deterrent effect on the birds. Attached Figure Description
[0018] Figure 1 A schematic diagram illustrating the use of the bird-proof device for high-voltage transmission lines provided by this utility model;
[0019] Figure 2 A schematic diagram of the structure of the bird-proof device for high-voltage transmission lines provided by this utility model;
[0020] Figure 3 A top view of the bird-proof device for high-voltage transmission lines provided by this utility model.
[0021] The corresponding names of the reference numerals in the attached drawings are: 101, base; 102, spring; 103, pivot; 104, fan blade; 105, tip; 200, crossbeam. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.
[0023] First embodiment:
[0024] like Figure 1-3As shown, the high-voltage transmission line bird-proof device provided by this utility model includes: a base 101, which is a cuboid; a rotating shaft 103 is rotatably mounted on the upper end of the base 101; four fan blades 104 are fixedly mounted on the upper end of the rotating shaft 103; the length of two fan blades 104 is the same as the width of the crossarm 200, meaning that when blown by wind, the fan blades 104 rotate, and the end of the crossarm 200 is covered by the fan blades 104; four springs 102 are provided on the base 101; and four through holes are correspondingly provided on the surface of the base 101. One end of spring 102 is a hook, which hangs in the through hole on base 101. The other end of spring 102 also has a hook, which hangs on the diagonal bar of crossarm 200. The four springs 102 correspond to four different directions, thus achieving a flexible connection between base 101 and crossarm 200. During installation, the worker carries the device and climbs to the end of crossarm 200, then hangs the springs 102 on base 101, with the other end hanging on the edge of the diagonal bar of crossarm 200. If there is no suitable support point on the diagonal bar... Alternatively, a hole can be drilled on the diagonal brace using an electric drill or other drilling tools. Finally, the hook of spring 102 is hung in the hole on the diagonal brace, thus achieving on-site assembly installation of the device. When the device is working, the wind drives the fan blade 104 to rotate. As the fan blade 104 rotates, it forms a disc covering the end of the crossarm 200, preventing birds from perching on the end of the crossarm 200. The rotation of the fan blade 104 also causes the entire device to vibrate, simultaneously causing spring 102 to oscillate. Thus, the entire device vibrates under the action of wind. The vibration creates a certain deterrent effect on birds. When there is no wind, the fan blade 104 stops rotating. When a bird stands on the fan blade 104, since the fan blade 104 and the device are tilted, the bird's own weight or the inertia when landing pushes the fan blade 104 to rotate slightly at a certain angle. The bird stands on the fan blade 104 and rotates with the fan blade 104. Because the bird is unstable when landing, it will take off again. In this way, no matter the size of the bird, it can leave the crossarm 200 when it lands on the fan blade 104 due to the rotation of the fan blade 104.
[0025] Second embodiment:
[0026] like Figure 2 As shown, the upper end of the rotating shaft 103 is provided with a tip 105, which is an inverted cone shape. The tip 105 can visually deter birds and create an obstacle when they approach or perch on the upper end of the device.
[0027] Third embodiment:
[0028] like Figure 2As shown, since the fan blade 104 covers the upper end of the crossarm 200, when birds perch at this position, according to their habits, they will usually choose the highest position in a certain area to perch. Thus, there is a certain probability that the birds will land on the fan blade 104. The fan blade 104 is flat, thin, tall, and smooth, and is vertically installed on the side wall of the shaft 103. This structure is not conducive to the birds' claws to grip, so they cannot stand steadily. Therefore, the birds will not stay on the fan blade for a long time.
[0029] Fourth embodiment:
[0030] To further enhance the bird-repelling effect, reflective material is provided on both sides of the fan blade 104. When the fan blade 104 rotates, its angle with the sunlight changes constantly, and the sunlight reflected by the fan blade 104 also changes constantly. When the reflected light shines into the eyes of birds, it can have a certain deterrent effect on the birds.
[0031] Working principle: When the device is working, the wind drives the fan blade 104 to rotate. When the fan blade 104 rotates, it forms a disc that covers the end of the crossarm 200, so birds cannot perch on the end of the crossarm 200. The rotation of the fan blade 104 causes the entire device to vibrate, and the spring 102 is also driven to vibrate. Thus, the entire device vibrates under the action of wind, which has a certain deterrent effect on birds. When there is no wind, the fan blade 104 stops rotating. When a bird stands on the fan blade 104, since the fan blade 104 and the device are tilted, the bird's own weight or the inertia when perching pushes the fan blade 104 to rotate slightly at a certain angle. The bird stands on the fan blade 104 and rotates with the fan blade 104. Because the bird is unstable when perching, it will take off again.
[0032] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.
Claims
1. A bird-proofing device for high-voltage transmission lines, characterized in that, include: A base (101) is provided with a rotating shaft (103) at its upper end. Several fan blades (104) are installed at the upper end of the rotating shaft (103). Several springs (102) are provided on the base (101). The other end of the springs (102) is installed on the diagonal bar of the crossbeam (200).
2. The bird-proof device for high-voltage transmission lines according to claim 1, characterized in that, The upper end of the rotating shaft (103) is provided with a tip (105), which is an inverted cone shape.
3. The bird-proof device for high-voltage transmission lines according to claim 1, characterized in that, The fan blade (104) is flat, with a smooth surface and is vertically mounted on the side wall of the rotating shaft (103).
4. The bird-proof device for high-voltage transmission lines according to claim 3, characterized in that, The fan blades (104) are provided with reflective materials on both sides.
5. The bird-proof device for high-voltage transmission lines according to claim 1, characterized in that, The base (101) is a cuboid with four through holes on its surface. One end of the spring (102) is a hook that hangs in the through hole on the base (101).
6. The bird-proof device for high-voltage transmission lines according to claim 5, characterized in that, The other end of the spring (102) is also provided with a hook.