Artificial bird nest structure of electric tower
The modular design of the artificial bird nest structure on the power tower, which is fixed to the tower angle steel using connecting angle steel and L-shaped connecting plates, solves the problems of complex installation and high-altitude welding risks in existing technologies, and achieves efficient and stable bird nest installation and a safe nesting environment for birds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HOME ENG DESIGN CONSULTING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Existing artificial bird nest structures are not suitable for installation on high-voltage transmission line towers, and the installation process is complex and difficult, with risks associated with high-altitude welding.
The modular design of the artificial bird's nest structure for power towers includes the artificial bird's nest body and the connecting structure. It is fixed to the angle steel of the tower by connecting angle steel, L-shaped connecting plates and connecting angle brackets. It is assembled on site rather than welded at high altitude. The internal and external clamping and fixing method of L-shaped connecting plates and connecting angle brackets is suitable for the angle steel of power towers.
It simplifies the high-altitude installation process, reduces welding risks, improves installation efficiency and stability, enhances the connection strength and torsional resistance between the bird's nest and the iron tower, and provides a more spacious nesting area and safe distance, which is in line with birds' nesting preferences.
Smart Images

Figure CN224522080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power protection facilities technology, specifically to an artificial bird's nest structure for power towers. Background Technology
[0002] With increasing awareness of ecological protection, installing artificial bird nests on high-voltage transmission line towers (referred to as towers) or poles has become an effective measure to protect large birds such as birds of prey. These facilities guide birds to nest and breed in safe areas, reducing their nesting behavior on critical live components such as insulator strings and conductor connection points. This significantly reduces operational accidents such as short circuits and flashovers caused by falling bird nest materials, while also preventing electric shock injuries to the birds themselves, thus achieving coordinated development of power facility safety and ecological protection.
[0003] Currently, common artificial bird nests mostly adopt bamboo baskets, metal mesh baskets, or frame structures, and are fixed to the crossarm of utility poles or towers using clamps, straps, or brackets. Their installation methods are mainly divided into two categories: one is to directly suspend or bind them to the pole body; the other is to use angle steel clamps to hold them to the tower material plane. A utility model with publication number CN221241279U discloses an intelligent artificial bird nest for a 10kV tension pole. This utility model discloses that a pole-top clamp is fixed to the top of the tension pole using bolt assemblies. One end of the pole-top support structure is connected to the pole-top clamp, and the other end is connected to a fixed frame, with a bamboo basket inside the fixed frame.
[0004] The above structure is only suitable for installing artificial bird nests on utility poles, not for installing large iron towers. Furthermore, the artificial bird nests are assembled and welded on the ground before being transported to the top of the utility pole for installation. Because the assembled artificial bird nests are large in size and weight, both the transportation to the top of the pole and the installation there present significant challenges. Utility Model Content
[0005] The present invention aims to provide an artificial bird's nest structure for power towers, which facilitates the high-altitude installation of artificial bird's nests.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: The artificial bird's nest structure for power towers includes an artificial bird's nest body and a connecting structure for fixing the artificial bird's nest body to the angle steel of the tower. The artificial bird's nest body and the connecting structure are fixed by connecting angle steel. The connecting structure includes multiple sets of connecting components. Each connecting component includes a supporting angle steel, an L-shaped connecting plate, and a connecting angle bracket. The top of the supporting angle steel is fixedly connected to the connecting angle steel, and the bottom of the supporting angle steel is fixedly connected to the L-shaped connecting plate. The L-shaped connecting plate is placed on the outside of the tower angle steel, and the connecting angle bracket is placed on the inside of the tower angle steel. The two ends of the L-shaped connecting plate and the connecting angle bracket are fixedly connected.
[0007] The principles and advantages of this scheme are: 1. The artificial bird's nest structure is divided into the artificial bird's nest body, connecting angle steel and connecting structure. It adopts a modular installation method. The more complex welding work is all completed in the factory or on the ground. During on-site installation, it is only necessary to transport each component to the installation point and then assemble it with bolts. The steps are clear, which reduces the difficulty and risk of high-altitude welding operations and improves the efficiency of high-altitude installation.
[0008] 2. The designer of the bottom connecting structure specifically targeted the 90° angle steel commonly used in iron towers. By placing L-shaped connecting plates and connecting angle brackets on the outside and inside of the iron tower angle steel for clamping and fixing, the installation can be completed without special modification or welding of the iron tower angle steel. This artificial bird's nest can be installed wherever there is horizontally set angle steel.
[0009] 3. Place the L-shaped connecting plate on the outside of the tower angle steel and the connecting angle bracket on the inside of the tower angle steel. The fixing method of internal and external clamping is adopted. In addition, the tower angle steel is 90° angle steel. The above fixing method provides strong anti-torsion and anti-falling ability, which is suitable for high-altitude tower environment and improves the overall stability of artificial bird nest.
[0010] 4. By fixing the artificial bird nest directly above the angle steel of the tower with supporting angle steel, and ensuring that there is a certain distance between the artificial bird nest and the angle steel of the tower, the spatial distance between the bird nest and the live parts below (such as wires and insulators) can be effectively increased, significantly reducing the possibility of birds accidentally touching live parts when they are active, and at the same time, the distance from the angle steel increases the activity space for birds.
[0011] Preferably, as an improvement, the artificial bird's nest body includes an upper frame, a lower frame, and multiple support bars. The upper frame and the lower frame are ring structures and are coaxially arranged. The diameter of the upper frame is larger than the diameter of the lower frame. The multiple support bars are arranged circumferentially along the upper frame and the lower frame, and the two ends of the support bars are fixedly connected to the upper frame and the lower frame, respectively.
[0012] Technical benefits: The above-mentioned design, with the upper frame diameter larger than the lower frame diameter, gives the artificial bird nest a conical structure that is larger at the top and smaller at the bottom. This provides a more spacious entrance and sheltered space, which is more in line with the natural nesting preferences of birds and increases its attractiveness to them. The design of the ring frame and the multiple support bars arranged around the perimeter ensures structural strength, provides good ventilation and visibility, and is relatively lightweight, making it easy to install without putting a burden on the tower.
[0013] Preferably, as an improvement, the bottom of the lower frame is provided with a mounting plate, the mounting plate is fixedly connected to the lower frame, and the mounting plate is provided with mounting plate bolt holes.
[0014] Technical benefits: The above-mentioned setup facilitates the connection between the artificial bird's nest and the connecting angle steel, and also provides installation points for the bamboo basket.
[0015] Preferably, as an improvement, the connecting angle steel includes a horizontal side and a vertical side. The horizontal side of the connecting angle steel is provided with a plurality of mounting holes that mate with the bolt holes of the mounting plate, and the vertical side of the connecting angle steel is provided with a plurality of connecting holes that mate with the supporting angle steel.
[0016] Technical Effects: This solution adopts the above-mentioned setup, which clarifies the installation positions of the artificial bird's nest body and the connecting structure. The horizontal edge of the connecting angle steel is connected to the artificial bird's nest body, which can withstand the vertical load of the artificial bird's nest. The vertical plate of the connecting angle steel is connected to the supporting angle steel, and the vertical edge can disperse the horizontal wind force, making the stress on the connecting angle steel more reasonable and improving the stability of the overall structure.
[0017] Preferably, as an improvement, the transverse side of the connecting angle steel is also provided with two counterweight fixing holes. The counterweight fixing holes are located at both ends of the connecting angle steel. The counterweight fixing holes are elliptical holes with different diameters at both ends, and the end with the larger diameter of the counterweight fixing hole is closer to the end of the connecting angle steel.
[0018] Technical benefits: The above-mentioned setup facilitates cooperation with the positioning block of the counterweight, enabling rapid pre-positioning and anti-detachment of the counterweight. During installation, simply place the positioning block into the end with the larger diameter of the counterweight fixing hole and slide it to the end with the smaller diameter of the counterweight fixing hole to lock it in place. This allows for easy one-handed operation at heights, greatly simplifying the installation process of the counterweight and providing a foundation for enhancing wind resistance stability.
[0019] Preferably, as an improvement, the L-shaped connecting plate includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged perpendicular to each other, the first connecting plate is arranged horizontally, the first connecting plate is fixedly connected to the supporting angle steel, the second connecting plate is arranged vertically, and the top of the second connecting plate is fixedly connected to the bottom surface of the first connecting plate.
[0020] Technical benefits: This solution uses the above setup, where the first connecting plate and the second connecting plate are welded together to form an L-shaped connecting plate. The first connecting plate also needs to be welded to the supporting angle steel. If the L-shaped mounting plate is purchased directly, it will require secondary processing and welding to the supporting angle steel. By directly welding the first mounting plate, the second mounting plate, and the supporting angle steel, the purchase cost of the L-shaped connecting plate is eliminated, thus reducing costs.
[0021] Preferably, as an improvement, the ends of the first connecting plate and the second connecting plate that are away from the connection point extend beyond the two sides of the tower angle steel. The area of the first connecting plate that extends beyond the horizontal side of the tower angle steel is provided with bolt holes, and the area of the second connecting plate that extends beyond the vertical side of the tower angle steel is provided with bolt holes.
[0022] Technical benefits: The above-mentioned configuration provides sufficient area for the first connecting plate, the second connecting plate, and the connecting angle bracket to install bolts to clamp and fix the tower angle steel. At the same time, the bolts are connected in both horizontal and vertical directions, forming a two-way constraint, which greatly enhances the clamping structure's ability to resist the torsion caused by wind and other forces on the bird's nest, and improves the stability of the connection.
[0023] Preferably, as an improvement, the connecting angle steel is further provided with a counterweight block, the counterweight block is located at both ends of the connecting angle steel, the top of the counterweight block is provided with a positioning block and a counterweight block bolt hole, the positioning block includes an upper cylinder and a lower cylinder, the diameter of the upper cylinder is larger than the diameter of the lower cylinder.
[0024] Technical benefits: The above-mentioned design significantly increases the weight and center of gravity stability of the entire device, effectively resisting swaying, tilting or overturning caused by wind at high altitudes. The positioning block facilitates auxiliary positioning when installing the counterweight. The positioning block can be temporarily connected to the fixing hole of the counterweight first, and then fixed with bolts. The installer does not need to hold the counterweight with one hand and tighten the bolts with the other, which reduces the difficulty of installing the counterweight.
[0025] Preferably, as an improvement, the diameter of the upper cylinder is smaller than the larger diameter of the counterweight fixing hole and smaller than the smaller diameter of the counterweight fixing hole, and the diameter of the lower cylinder is smaller than the smaller diameter of the counterweight fixing hole.
[0026] Technical effect: The above-mentioned setup ensures that the lower cylinder can pass through the larger diameter end of the counterweight fixing hole. After the positioning block is inserted into the counterweight fixing hole from the larger diameter end, it slides towards the smaller diameter end, ensuring that the upper cylinder cannot come out from the smaller diameter end of the counterweight fixing hole. Thus, the positioning block is stuck in the counterweight fixing hole, achieving fast and reliable pre-fixation. Attached Figure Description
[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0028] Figure 2 This is a left view of the connection structure in an embodiment of the present utility model.
[0029] Figure 3 This is a side view of the connection structure according to an embodiment of the present utility model.
[0030] Figure 4 This is an unfolded view of the connecting angle steel according to an embodiment of the present invention.
[0031] Figure 5 This is a top view of the bottom frame of an embodiment of this utility model.
[0032] Figure 6 This is a schematic diagram of the connection structure in Embodiment 2 of this utility model.
[0033] Figure 7 This is a schematic diagram of the counterweight block in Embodiment 2 of this utility model.
[0034] Figure 8 This is an unfolded view of the connecting angle steel in Embodiment 2 of this utility model.
[0035] The reference numerals in the accompanying drawings of the instruction manual include: artificial bird's nest body 1, upper frame 11, lower frame 12, support bar 13, mounting plate 14, mounting plate bolt hole 141, connecting angle steel 2, mounting hole 21, connecting hole 22, counterweight fixing hole 23, connecting structure 3, support angle steel 31, first connecting plate 32, second connecting plate 33, connecting angle bracket 34, iron tower angle steel 4, counterweight 5, positioning block 51. Detailed Implementation
[0036] The following detailed description illustrates the specific implementation method: Example 1 The basics are as follows: Figure 1-5 As shown: Artificial bird nest structures on power towers, such as Figure 1 As shown, the structure includes an upper artificial bird's nest body 1 and a lower connecting structure 3 for fixing the artificial bird's nest body 1 to the angle steel 4 of the iron tower. The artificial bird's nest body 1 and the connecting structure 3 are fixed together by connecting angle steel 2. The artificial bird's nest body 1 includes an upper frame 11, a lower frame 12, and multiple support bars 13. The upper frame 11 and the lower frame 12 are annular structures and coaxially arranged. The diameter of the upper frame 11 is larger than the diameter of the lower frame 12, giving the artificial bird's nest body 1 a structure that is larger at the top and smaller at the bottom. Multiple support bars 13 are arranged circumferentially along the upper frame 11 and the lower frame 12. The two ends of the support bars 13 are fixedly connected to the upper frame 11 and the lower frame 12, respectively. In this design, welding is used for fixing. The bottom of the lower frame 12 is provided with a mounting plate 14, which is fixedly connected to the lower frame 12. In this design, welding is used for fixing. The mounting plate 14 is provided with mounting plate bolt holes 141 for connecting to the connecting angle steel 2.
[0037] like Figure 2 , 3As shown, the connection structure 3 includes multiple sets of connection components. Each set of connection components includes a supporting angle steel 31, an L-shaped connecting plate, and a connecting angle bracket 34. The top of the supporting angle steel 31 is fixedly connected to the connecting angle steel 2, and the bottom of the supporting angle steel 31 is fixedly connected to the L-shaped connecting plate. In this embodiment, the side of the iron tower angle steel 4 with an included angle of 90° is defined as the inner side of the iron tower angle steel 4, and the corresponding side is defined as the outer side of the iron tower angle steel 4. The L-shaped connecting plate is placed on the outer side of the iron tower angle steel 4, and the connecting angle bracket 34 is placed on the inner side of the iron tower angle steel 4. The two ends of the L-shaped connecting plate and the connecting angle bracket 34 are fixedly connected by bolts.
[0038] The L-shaped connecting plate includes a first connecting plate 32 and a second connecting plate 33, such as Figure 3 As shown, the first connecting plate 32 and the second connecting plate 33 are arranged perpendicularly to each other. The first connecting plate 32 is arranged horizontally and is fixedly connected to the supporting angle steel 31. In this scheme, the fixing is achieved by welding. The second connecting plate 33 is arranged vertically, and the top of the second connecting plate 33 is fixedly connected to the bottom surface of the first connecting plate 32. In this scheme, the fixing is achieved by welding. The weld joint between the second connecting plate 33 and the first connecting plate 32 is a certain distance from the end of the first connecting plate 32 to provide space for double-sided welding and ensure the stability of the welding. At the same time, in order to make the weld joint between the first connecting plate 32 and the second connecting plate 33 fit more closely to the bend of the tower angle steel 4, it needs to be ground after welding.
[0039] Furthermore, such as Figure 3 As shown, the ends of the first connecting plate 32 and the second connecting plate 33 furthest from their connection point extend beyond the two sides of the tower angle steel 4. Similarly, the two sides of the connecting bracket 34 also need to extend beyond the two sides of the tower angle steel 4. The area of the first connecting plate 32 extending beyond the horizontal side of the tower angle steel 4 has bolt holes, which mate with the bolt holes on the horizontal side of the connecting bracket 34. The area of the second connecting plate 33 extending beyond the vertical side of the tower angle steel 4 has bolt holes, which mate with the bolt holes on the vertical side of the connecting bracket 34. The first set of bolts passes through the bolt holes on the horizontal side of the first connecting plate 32 and the connecting bracket 34 in sequence and is then tightened. Simultaneously, the second set of bolts passes through the bolt holes on the vertical side of the second connecting plate 33 and the connecting bracket 34 in sequence and is then tightened. This allows the tower angle steel 4 to be clamped and fixed between the L-shaped connecting plate and the connecting bracket 34, and the overall L-shaped structure allows for relative rotation.
[0040] like Figure 4As shown, the connecting angle steel 2 includes a horizontal side and a vertical side. The horizontal side of the connecting angle steel 2 has multiple mounting holes 21 that mate with the bolt holes 141 of the mounting plate. Bolts pass through the bolt holes 141 and mounting holes 21 in sequence to fix the horizontal side of the connecting angle steel 2 to the mounting plate 14. The vertical side of the connecting angle steel 2 has multiple connecting holes 22 that mate with the supporting angle steel 31. Bolts pass through the connecting holes 22 and bolt holes on the supporting angle steel 31 in sequence to fix the vertical side of the connecting angle steel 2 to the supporting angle steel 31, thus achieving a fixed connection between the artificial bird's nest body 1 and the connecting structure 3. Since there is more than one supporting angle steel 31, there may be errors during actual installation. Therefore, the connecting holes 22 are elongated holes to adjust for errors and ensure stable installation.
[0041] Before actual installation and use, the parts requiring welding are welded and fixed, including the upper frame 11 and support bar 13, the lower frame 12 and support bar 13, the lower frame 12 and mounting plate 14, the first connecting plate 32 and the second connecting plate 33, and the support angle steel 31 and the first connecting plate 32. All components are then transported to the iron tower where the artificial bird's nest body 1 will be installed. During actual installation, the L-shaped connecting plate and the connecting angle bracket 34 are first placed on the outside and inside of the iron tower angle steel 4, respectively. Then, bolts are used to connect the first connecting plate 32 to the horizontal plate of the connecting angle bracket 34, and the second connecting plate 33 to the vertical plate of the connecting angle bracket 34. Then, bolts are used to connect the top of the support angle steel 31 to the vertical plate of the connecting angle steel 2. Finally, bolts are used to connect the mounting plate 14 to the horizontal plate of the connecting angle steel 2, thus completing the installation of the artificial bird's nest body 1.
[0042] Furthermore, in actual use, a bamboo basket needs to be placed inside the artificial bird's nest body 1 to facilitate birds to build their nests. When installing the bamboo basket, two through holes can be drilled at the bottom of the bamboo basket to connect with the bolt holes 141 of the mounting plate. When installing the artificial bird's nest body 1, the bolts are passed through the through holes at the bottom of the bamboo basket, the bolt holes 141 of the mounting plate, and the mounting hole 21 in sequence and then tightened. This way, the bamboo basket can be fixed at the same time as the artificial bird's nest body 1.
[0043] Example 2 The basics are as follows: Figure 6-8 As shown: The difference between this embodiment and embodiment 1 is that two counterweights 5 are added to the connecting angle steel 2.
[0044] The counterweight 5 is located at both ends of the connecting angle steel 2. The top of the counterweight 5 is provided with a positioning block 51 and a bolt hole for the counterweight 5. The positioning block 51 includes an upper cylinder and a lower cylinder, and the diameter of the upper cylinder is larger than the diameter of the lower cylinder. Two counterweight fixing holes 23 are also provided on the transverse side of the connecting angle steel 2. The counterweight fixing holes 23 are located at both ends of the connecting angle steel 2. The counterweight fixing holes 23 are elliptical holes with different diameters at both ends. The end with the larger diameter of the counterweight fixing hole 23 is closer to the end of the connecting angle steel 2.
[0045] Furthermore, the diameter of the upper cylinder of the positioning block 51 is smaller than both the larger and smaller diameters of the counterweight fixing hole 23, and the diameter of the lower cylinder is smaller than the smaller diameter of the counterweight fixing hole 23. This allows the upper cylinder of the positioning block 51 to pass through the larger diameter end of the counterweight fixing hole 23 and move to the other end within it. At this point, the upper cylinder cannot pass through the smaller diameter end of the counterweight fixing hole 23, and the positioning block 51 is stuck inside the counterweight fixing hole 23. Then, the bolt is passed through the counterweight fixing hole 23 and tightened into the bolt hole on the positioning block 51, fixing the counterweight 5 to the connecting angle steel 2. To ensure the stability of the counterweight 5 installation, the bolt head must abut against the upper cylinder after installation to prevent the positioning block 51 from moving.
[0046] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An artificial bird's nest structure for power towers, characterized by: The device includes an artificial bird's nest body and a connecting structure for fixing the artificial bird's nest body to the angle steel of a tower. The artificial bird's nest body and the connecting structure are fixed together by connecting angle steel. The connecting structure includes multiple sets of connecting components. Each connecting component includes a supporting angle steel, an L-shaped connecting plate, and a connecting angle bracket. The top of the supporting angle steel is fixedly connected to the connecting angle steel, and the bottom of the supporting angle steel is fixedly connected to the L-shaped connecting plate. The L-shaped connecting plate is placed on the outside of the tower angle steel, and the connecting angle bracket is placed on the inside of the tower angle steel. The two ends of the L-shaped connecting plate and the connecting angle bracket are fixedly connected.
2. The artificial bird's nest structure for power towers according to claim 1, characterized in that: The artificial bird's nest body includes an upper frame, a lower frame, and multiple support bars. The upper frame and the lower frame are ring structures and are coaxially arranged. The diameter of the upper frame is larger than the diameter of the lower frame. The multiple support bars are arranged circumferentially along the upper frame and the lower frame, and the two ends of the support bars are fixedly connected to the upper frame and the lower frame, respectively.
3. The artificial bird's nest structure for power towers according to claim 2, characterized in that: The bottom of the lower frame is provided with a mounting plate, which is fixedly connected to the lower frame. The mounting plate is provided with mounting plate bolt holes.
4. The artificial bird's nest structure for power towers according to claim 1, characterized in that: The connecting angle steel includes a horizontal side and a vertical side. The horizontal side of the connecting angle steel is provided with a plurality of mounting holes that mate with the bolt holes of the mounting plate, and the vertical side of the connecting angle steel is provided with a plurality of connecting holes that mate with the supporting angle steel.
5. The artificial bird's nest structure for power towers according to claim 4, characterized in that: The connecting angle steel is also provided with two counterweight fixing holes on its horizontal side. The counterweight fixing holes are located at both ends of the connecting angle steel. The counterweight fixing holes are elliptical holes with different diameters at both ends. The end with the larger diameter of the counterweight fixing hole is closer to the end of the connecting angle steel.
6. The artificial bird's nest structure for power towers according to claim 1, characterized in that: The L-shaped connecting plate includes a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are arranged perpendicular to each other. The first connecting plate is arranged horizontally and is fixedly connected to the supporting angle steel. The second connecting plate is arranged vertically and the top of the second connecting plate is fixedly connected to the bottom surface of the first connecting plate.
7. The artificial bird's nest structure for power towers according to claim 6, characterized in that: Both the first connecting plate and the second connecting plate extend beyond the two sides of the tower angle steel at the ends furthest from their connection point. The first connecting plate has bolt holes in the area extending beyond the horizontal side of the tower angle steel, and the second connecting plate has bolt holes in the area extending beyond the vertical side of the tower angle steel.
8. The artificial bird's nest structure for power towers according to claim 1, characterized in that: The connecting angle steel is also provided with a counterweight. The counterweight is located at both ends of the connecting angle steel. The top of the counterweight is provided with a positioning block and a bolt hole for the counterweight. The positioning block includes an upper cylinder and a lower cylinder. The diameter of the upper cylinder is larger than the diameter of the lower cylinder.
9. The artificial bird's nest structure for power towers according to claim 8, characterized in that: The diameter of the upper cylinder is smaller than the larger diameter of the counterweight fixing hole and smaller than the smaller diameter of the counterweight fixing hole, and the diameter of the lower cylinder is smaller than the smaller diameter of the counterweight fixing hole.