Adjustable bird deflector device for power lines
By designing an adjustable bird-proof baffle device, and utilizing the dynamic protection mechanism of a wind-driven rotating frame and baffle, the problem of flashover caused by birds landing on power transmission lines was solved, achieving efficient bird protection and convenient installation, and improving the operational stability of power equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东科信通实业有限公司
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, transmission line towers are prone to attracting birds to perch, causing debris and droppings carried by the birds to fall onto insulators and equalizing plates, resulting in flashover faults in transmission lines and affecting power supply.
An adjustable bird deterrent device is designed, comprising a conical rotating frame, a fan-shaped baffle body, and an L-shaped baffle bar. The rotating frame is driven to rotate by wind power to form a dynamic visual deterrent, and passive protection is achieved through the cooperation of a coil spring and the baffle bar. Combined with auxiliary devices, it can be quickly installed and its height can be adjusted.
It effectively drives away birds, prevents them from staying, improves bird protection, simplifies the installation process, enhances versatility and ease of on-site application, and reduces maintenance costs.
Smart Images

Figure CN224539256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bird-proof baffles for power transmission lines, and in particular to an adjustable bird-proof baffle device for power transmission lines. Background Technology
[0002] With the continuous development of power infrastructure, the construction and maintenance of transmission lines have become increasingly important. Transmission lines not only bear a large amount of power transmission tasks, but also need to face various challenges from the natural environment. A common problem is electrocution accidents involving birds. Birds often perch or rest on power towers or power lines, especially during migration, easily causing short circuits or fires in electrical equipment, resulting in power system failures and economic losses. This is particularly common in high-voltage power transmission facilities.
[0003] Existing technologies, such as the utility model patent with publication number CN218043461U, disclose a bird-proof baffle device for transmission line towers. This patent includes two bird-proof baffles with anti-stopping rods mounted on their upper surfaces. Both baffles are located between the fitting ball head and the equalizing ring, and are joined together by two sides of a vertical rod to form a downward-opening cover structure. The inner edge of the cover is fitted against the side wall of the vertical rod. The cover structure completely covers the equalizing ring from above, and its side wall is an inclined plate structure with its bottom surface supported on the equalizing ring. This utility model's cover structure has a smooth upper surface, effectively preventing birds from standing or perching on the top of the transmission line tower. The cover structure completely covers the equalizing ring from above, and the downward projection area of the cover structure covers the downward projection area of each umbrella cover, effectively preventing bird droppings or other foreign objects from falling onto the surface of the equalizing ring or umbrella covers, avoiding flashover of the transmission line due to contamination of the equalizing ring or umbrella covers, and ensuring the normal operation of power equipment.
[0004] It has been found in high-voltage power transmission facilities that, during long-term use of transmission lines, birds tend to perch on ordinary transmission line towers, especially on the metal fittings ball heads and equipotential rings that are usually installed at the top of the transmission line towers. When birds perch on the top of the transmission line towers, debris and droppings carried by the birds are likely to fall onto the insulators and equipotential rings, which can lead to flashover faults in the transmission lines and affect the power supply. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where, during long-term use of power transmission lines, birds easily perch on the towers, particularly on the metal fittings and equipotential rings located at the top of the towers. When birds perch on the top of the towers, debris and droppings carried by the birds can fall onto the insulators and equipotential rings, leading to flashover faults in the power transmission lines and affecting the power supply.
[0006] To solve the above-mentioned technical problems, this utility model provides an adjustable bird-proof baffle device for power transmission lines, comprising: a base and an auxiliary device. A wire insulator is fixedly connected to the upper surface of the base. A mounting frame is fixedly connected to the upper end of the wire insulator. An adjustment device is provided on the upper surface of the mounting frame. The adjustment device includes an adjustment frame, which is fixedly connected to the upper surface of the mounting frame via the auxiliary device. A rotating shaft is fixedly connected to the inner wall of the adjustment frame. A rotating frame is rotatably connected to the upper end of the rotating shaft. The rotating frame has a conical cross-section. Several fixed frames are uniformly fixedly connected to the arc surface of the adjustment frame. A baffle body is rotatably connected to the inner wall of the fixed frame. The baffle body has a fan-shaped cross-section. Coil springs are fitted at both ends of the inner wall of the fixed frame. The two ends of the coil springs are fixedly connected to one end surface of the fixed frame and the baffle body, respectively. A stop bar is fixedly connected to the surface of the adjustment frame at a position corresponding to the baffle body. The stop bar has an "L"-shaped cross-section.
[0007] The aforementioned components achieve the following effects: by incorporating a cone-shaped rotating frame that can swirl with the wind, birds are effectively deterred and prevented from alighting. The fan-shaped baffle body can adaptively reset under the action of a coil spring, and in conjunction with the L-shaped baffle bar for limiting movement, it forms a multi-directional, dynamic protective barrier, greatly enhancing the bird-proofing effect. The overall structure is stable and easy to install and adjust on power transmission lines.
[0008] Preferably, the arc surface of the rotating frame is fixedly connected with a plurality of connecting strips, and the cross-section of the connecting strips is "S" shaped.
[0009] The effect achieved by the above components is that the S-shaped connecting strip increases the contact area and disturbance between the rotating frame and the air, making it rotate more sensitively even in a light wind, thus enhancing the dynamic bird deterrence effect and reliability.
[0010] Preferably, a top bead is fixedly connected to the bottom surface of the stop bar. The top bead is a hollow bead. Three auxiliary balls are provided on the inner wall of the top bead. The auxiliary balls are stainless steel balls. Several through holes are opened on the arc surface of the top bead. A top block is fixedly connected to the surface of the baffle body corresponding to the position of the top bead. The top block is a hard alloy block.
[0011] The aforementioned components achieve the following effect: when the baffle body is rotated by wind or struck by birds and hits the top bead, the stainless steel auxiliary ball inside the top bead will roll and collide within the hollow cavity, generating sound through the through hole. This sound frightens and drives away birds, achieving multiple protections of acoustic bird deterrence and physical barrier. The hard alloy top block ensures wear resistance and a long service life at the impact point.
[0012] Preferably, a plurality of auxiliary nails are fixedly connected to the surface of the baffle body, and the upper end cross section of the auxiliary nails is conical.
[0013] The effect achieved by the above components is that the pointed, cone-shaped auxiliary nails prevent birds from standing on the surface of the barrier, completely eliminating the possibility of birds perching and further enhancing the protective capability of the device.
[0014] Preferably, the auxiliary device is disposed on the surface of the mounting frame. The auxiliary device includes two connecting columns, the bottom ends of which are fixedly connected to both sides of the surface of the mounting frame. A positioning frame is fixedly connected to the lower surface of the adjusting frame. The positioning frame has a U-shaped cross-section. Connecting grooves are provided on both ends of the positioning frame. The inner wall of the connecting groove is inserted into the arc surface of the connecting column. A positioning shaft is threadedly connected to the arc surface of the connecting column.
[0015] The effect achieved by the above components is as follows: the auxiliary device is engaged with the connecting slot on the positioning frame by connecting column, and then locked by positioning shaft, realizing quick disassembly and assembly and height adjustment between the adjustment frame and the mounting frame, which greatly facilitates the installation, maintenance and adaptability adjustment of the device.
[0016] Preferably, the arc surface of the connecting column is fitted with a washer, and the surface of the washer abuts against the lower surface of the positioning shaft.
[0017] The effect achieved by the above components is that the washer increases the contact area and friction between the positioning shaft and the connecting column, effectively preventing the positioning shaft from loosening due to vibration and other reasons, and ensuring the stability and reliability of the connection structure.
[0018] Preferably, the inner wall surface of the positioning frame is provided with a guide groove, the cross section of the guide groove is cross-shaped, a guide rod is slidably inserted into the inner wall of the guide groove, and the bottom end of the guide rod is fixedly connected to the surface of the mounting frame.
[0019] The aforementioned components achieve the following effects: the cross-shaped guide groove slides in conjunction with the guide rod, providing precise guidance and positioning during the installation of the adjustment frame, preventing rotation or misalignment of the positioning frame during installation, and ensuring the accuracy and efficiency of the installation. Simultaneously, this structure also shares some of the external force, enhancing overall stability.
[0020] Compared with related technologies, the adjustable bird-proof baffle device for power transmission lines provided by this utility model has the following advantages: This utility model provides an adjustable bird-proof baffle device for power transmission lines. By operating the adjustment device, the angle and protection range of the bird-proof baffle can be conveniently adjusted. The pointed cone-shaped rotating frame can rotate continuously under the action of wind, forming a dynamic visual deterrent to birds and effectively preventing birds from approaching and perching. The fan-shaped baffle body can be passively deflected under the action of the coil spring, which can not only buffer the impact of external force, but also disturb birds through the reset action, realizing passive and adaptive multi-directional protection. Compared with traditional fixed baffles, the bird-proof effect is more comprehensive, active and lasting.
[0021] By operating the auxiliary device, the entire system can be quickly installed, disassembled, and its height fine-tuned. The plug-in structure of the connecting column and the positioning frame, combined with the locking mechanism of the positioning shaft, makes the installation process simple and reliable, requiring no complex tools. The cooperation between the guide slot and the guide rod ensures precise alignment during installation, improving installation efficiency and preventing component damage. This adjustable design allows the device to flexibly adapt to different types of insulators and tower structures, greatly enhancing its versatility and ease of on-site application, while reducing maintenance costs and operating time. Attached Figure Description
[0022] Figure 1 A schematic diagram of the structure of an adjustable bird-proof baffle device for power transmission lines provided by this utility model; Figure 2 for Figure 1 A bottom view of the three-dimensional structure shown; Figure 3 for Figure 2 The diagram shows the structure of the regulating device. Figure 4 for Figure 2 A partial structural schematic diagram of the adjustment device is shown; Figure 5 for Figure 2 The diagram shows the structure of the auxiliary device.
[0023] The following are the labeling elements in the diagram: 1. Wire insulator; 2. Base; 3. Mounting bracket; 4. Adjustment device; 401. Adjustment bracket; 402. Rotating frame; 403. Connecting strip; 404. Rotating shaft; 405. Fixing bracket; 406. Baffle body; 407. Auxiliary nail; 408. Coil spring; 409. Stop bar; 410. Top block; 411. Top bead; 412. Auxiliary ball; 413. Through hole; 5. Auxiliary device; 51. Positioning bracket; 52. Connecting groove; 53. Connecting column; 54. Positioning shaft; 55. Washer ring; 56. Guide groove; 57. Guide rod. Detailed Implementation
[0024] 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.
[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0026] Please see Figures 1 to 5 The present invention provides an adjustable bird-proof baffle device for power transmission lines, comprising: a base 2 and an auxiliary device 5. A wire insulator 1 is fixedly connected to the upper surface of the base 2, and a mounting frame 3 is fixedly connected to the upper end of the wire insulator 1. An adjustment device 4 is provided on the upper surface of the mounting frame 3, and the auxiliary device 5 is provided on the surface of the mounting frame 3.
[0027] In the embodiments of this utility model, please refer to Figure 3 , Figure 4 and Figure 5 The adjusting device 4 includes an adjusting frame 401, which is fixedly connected to the upper surface of the mounting frame 3 by means of an auxiliary device 5. A rotating shaft 404 is fixedly connected to the inner wall of the adjusting frame 401, and a rotating frame 402 is rotatably connected to the upper end of the rotating shaft 404. The rotating frame 402 has a pointed conical cross-section. Several fixed frames 405 are uniformly fixedly connected to the arc surface of the adjusting frame 401. A baffle body 406 is rotatably connected to the inner wall of the fixed frame 405. The baffle body 406 has a fan-shaped cross-section. Coil springs 408 are sleeved on both ends of the inner wall of the fixed frame 405. The two ends of the coil springs 408 are fixedly connected to one end surface of the fixed frame 405 and the baffle body 406, respectively. The position of the surface of the adjusting frame 401 corresponds to the position of the baffle body 406. A stop bar 409 is fixedly connected, and the cross-section of the stop bar 409 is "L" shaped. Several connecting strips 403 are fixedly connected to the arc surface of the rotating frame 402. The cross-section of the connecting strips 403 is "S" shaped. A top bead 411 is fixedly connected to the bottom surface of the stop bar 409. The top bead 411 is a hollow bead. Three auxiliary balls 412 are provided on the inner wall of the top bead 411. The auxiliary balls 412 are stainless steel balls. Several through holes 413 are opened on the arc surface of the top bead 411. A top block 410 is fixedly connected to the surface of the baffle body 406 at the position corresponding to the top bead 411. The top block 410 is a hard alloy block. Several auxiliary nails 407 are fixedly connected to the surface of the baffle body 406. The upper end cross-section of the auxiliary nails 407 is conical. In the embodiments of this utility model, please refer to Figure 5The auxiliary device 5 includes two connecting columns 53. The bottom ends of the two connecting columns 53 are fixedly connected to both sides of the surface of the mounting frame 3. The lower surface of the adjusting frame 401 is fixedly connected to a positioning frame 51. The positioning frame 51 has a "U" shaped cross section. Both ends of the positioning frame 51 are provided with connecting grooves 52. The inner wall of the connecting groove 52 is inserted into the arc surface of the connecting column 53. The arc surface of the connecting column 53 is threadedly connected to a positioning shaft 54. The arc surface of the connecting column 53 is fitted with a washer 55. The surface of the washer 55 abuts against the lower surface of the positioning shaft 54. The inner wall surface of the positioning frame 51 is provided with a guide groove 56. The cross section of the guide groove 56 is cross-shaped. The inner wall of the guide groove 56 is slidably inserted with a guide rod 57. The bottom end of the guide rod 57 is fixedly connected to the surface of the mounting frame 3. The working principle of the adjustable bird-proof baffle device for power transmission lines provided by this utility model is as follows: During the use of power transmission lines, the rotating frame 402, which has a pointed conical cross-section and an S-shaped connecting strip 403, is easily activated in a light breeze due to the wind force acting on it. Because of its asymmetrical structure and center of gravity on the rotating shaft 404, the rotating frame 402 continuously rotates around the rotating shaft 404. The rotating object poses a strong visual threat to birds, effectively preventing them from approaching and attempting to land. Its "cone-shaped" design makes it impossible for birds to land even if they attempt to. When there is no external force, the coil spring 408 keeps the fan-shaped baffle body 406 in an extended state, abutting against the L-shaped baffle bar 409, forming a stable protective barrier to prevent birds from entering critical areas such as insulators. When strong winds blow or birds attempt to land on the baffle, the external force pushes the baffle body 406, causing it to overcome the torque of the coil spring 408 and rotate inward, creating an angle. When a bird's claws touch the movable baffle, the sudden rotation of the baffle causes the bird to lose its balance, become startled, and fly away. This is a passive tactile fright mechanism. When the external force disappears, the torque of the coil spring 408 automatically pulls the baffle body 406 back to its original position, abutting against the baffle bar 409 again, restoring the protective state.
[0028] To facilitate the installation and positioning of the entire adjustment device 4, the connecting slots 52 at both ends of the U-shaped positioning bracket 51 on the lower surface of the adjustment frame 401 are aligned and fitted onto the two connecting posts 53 on the surface of the mounting frame 3. During the insertion process, the cross-shaped guide groove 56 on the inner wall of the positioning bracket 51 will slide along the guide rod 57 fixed on the mounting frame 3. After the device is placed in place, the positioning shaft 54 is screwed into the threaded hole at the top of the connecting post 53 and tightened downwards. The lower surface of the positioning shaft 54 will press against the washer 55 and finally press against the surface of the positioning bracket 51. The insertion depth of the connecting post 53 and the connecting slot 52 determines the installation height of the entire adjustment device 4. This can be achieved by replacing the connecting post 53 with one of different lengths or inserting it into the slot at different heights.
[0029] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.
[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An adjustable bird-proof baffle device for power transmission lines, characterized in that, include: The base (2) and auxiliary device (5) are provided. A wire insulator (1) is fixedly connected to the upper surface of the base (2). A mounting bracket (3) is fixedly connected to the upper end of the wire insulator (1). An adjustment device (4) is provided on the upper surface of the mounting bracket (3). The adjustment device (4) includes an adjustment frame (401). The adjustment frame (401) is fixedly connected to the upper surface of the mounting bracket (3) by means of the auxiliary device (5). A rotating shaft (404) is fixedly connected to the inner wall of the adjustment frame (401). A rotating frame (402) is rotatably connected to the upper end of the rotating shaft (404). The cross-section of the rotating frame (402) is shaped like a cross-section of a wire insulator (1). The adjustment frame (401) is cone-shaped, and several fixed frames (405) are uniformly fixedly connected to the arc surface. The inner wall of the fixed frame (405) is rotatably connected to the baffle body (406). The cross-section of the baffle body (406) is fan-shaped. Both ends of the inner wall of the fixed frame (405) are fitted with coil springs (408). The two ends of the coil springs (408) are fixedly connected to one end surface of the fixed frame (405) and the baffle body (406), respectively. A stop bar (409) is fixedly connected to the surface of the adjustment frame (401) at the position corresponding to the baffle body (406). The cross-section of the stop bar (409) is "L"-shaped.
2. The adjustable bird-proof baffle device for transmission lines according to claim 1, characterized in that, The rotating frame (402) has several connecting strips (403) fixedly connected to its arc surface, and the cross-section of the connecting strips (403) is "S" shaped.
3. The adjustable bird-proof baffle device for transmission lines according to claim 1, characterized in that, A top bead (411) is fixedly connected to the bottom surface of the stop bar (409). The top bead (411) is a hollow bead. Three auxiliary balls (412) are provided on the inner wall of the top bead (411). The auxiliary balls (412) are stainless steel balls. Several through holes (413) are opened on the arc surface of the top bead (411). A top block (410) is fixedly connected to the surface of the baffle body (406) at the position corresponding to the top bead (411). The top block (410) is a hard alloy block.
4. The adjustable bird-proof baffle device for transmission lines according to claim 1, characterized in that, A number of auxiliary nails (407) are fixedly connected to the surface of the baffle body (406), and the upper end cross section of the auxiliary nails (407) is conical.
5. The adjustable bird-proof baffle device for transmission lines according to claim 1, characterized in that, The auxiliary device (5) is set on the surface of the mounting frame (3). The auxiliary device (5) includes two connecting columns (53). The bottom ends of the two connecting columns (53) are fixedly connected to both sides of the surface of the mounting frame (3). The lower surface of the adjusting frame (401) is fixedly connected to a positioning frame (51). The cross-section of the positioning frame (51) is "U". Both ends of the positioning frame (51) are provided with connecting grooves (52). The inner wall of the connecting groove (52) is inserted into the arc surface of the connecting column (53). The arc surface of the connecting column (53) is threadedly connected to a positioning shaft (54).
6. An adjustable bird-proof baffle device for transmission lines according to claim 5, characterized in that, The arc surface of the connecting column (53) is fitted with a washer (55), and the surface of the washer (55) abuts against the lower surface of the positioning shaft (54).
7. An adjustable bird-proof baffle device for transmission lines according to claim 5, characterized in that, The inner wall surface of the positioning frame (51) is provided with a guide groove (56), the cross section of the guide groove (56) is cross-shaped, and a guide rod (57) is slidably inserted into the inner wall of the guide groove (56). The bottom end of the guide rod (57) is fixedly connected to the surface of the mounting frame (3).