A pull-out wire bird deterrent
By combining a hydraulic telescopic rod with a quick-release structure, the problem of bird spikes being difficult to fix to the wires is solved, achieving adaptive clamping and quick assembly/disassembly, preventing wear, and improving bird protection effectiveness and installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUKANG GUOJIN ELECTRIC CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing technology, bird spikes are difficult to fix to the conductor. Loose bird spikes may rub against the conductor under the action of wind, which may wear down the insulation layer and may cause strand breakage or fracture in the long run.
The device employs a combination of hydraulic telescopic rods, movable plates, clamping plates, limiting blocks, sliding rods, springs, limiting plates, fixing blocks, first threaded rods, fastening blocks, and second threaded rods. The movable plates are driven to press down by the hydraulic telescopic rods, and the elastic return of the springs achieves adaptive clamping, preventing the bird spikes from shifting or loosening under wind force. Tool-free assembly and disassembly are achieved through a quick-pull structure between the upper and lower outer shells.
It achieves adaptive clamping of the bird spikes, preventing loosening and wear, improving installation and maintenance efficiency, expanding the bird protection range, and enhancing the bird protection effect.
Smart Images

Figure CN224368889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bird-proof spike device, specifically a pull-out wire bird-proof spike, belonging to the field of bird-proof spike technology. Background Technology
[0002] Bird spikes are an effective tool for preventing birds, lightning strikes, and animal crawling. High-voltage transmission lines are prone to grounding or short circuits due to birds perching, nesting, and defecating on insulators, causing safety faults. Damp branches, vines, wires, and other conductive materials used for bird nests can also easily cause short circuits. All of these seriously threaten the safe operation of the power grid and cause significant economic losses to the power sector and people's production and lives.
[0003] A search revealed a Chinese patent with publication number CN222396801U, which discloses a six-row, pull-out type bird spike for conductors. This invention features two locking components (one and two) on the upper and lower plates, which are connected by a pull-out mechanism to form the bird spikes. This makes the bird spikes easy to install and remove, provides wider protection, and effectively prevents birds from landing near lightning protection conductor supports, thus avoiding power line tripping caused by birds defecating near the supports. The bird-proof effect is excellent and beneficial for practical use.
[0004] While the above solutions make it very convenient to install and remove bird spikes on wires and provide a wider protection range, the bird spikes in the aforementioned patents are difficult to fix to the wires during use. Loose bird spikes will continuously rub against the wires under wind force, which may wear down the wire insulation layer and may cause strand breakage or fracture in the long run. Therefore, we provide a pull-out type bird spike for wires to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a pull-out wire anti-bird spike to solve the above-mentioned problems, thereby addressing the difficulty in conveniently replacing the spikes in the prior art.
[0006] This utility model is achieved through the following technical solution: a pull-out type wire anti-bird spike, including an upper shell, a clamping mechanism is provided on the inner side of the upper shell, the clamping mechanism includes a hydraulic telescopic rod fixedly connected to the inner side of the upper shell, a movable plate is fixedly connected to the telescopic end of the hydraulic telescopic rod, a card plate is fixedly connected to the lower surface of the movable plate, a limit block is clamped on the inner side of the card plate, and a sliding rod is fixedly connected to one side of the limit block;
[0007] The lower surface of the limiting block is slidably connected to the inner side of the fixing block, and a first threaded rod is fixedly connected to the lower surface of the fixing block. A fastening block is threadedly connected to the lower end of the first threaded rod.
[0008] Preferably, the inner wall of the fastening block is threaded with a second threaded rod, and the lower end of the second threaded rod is fixedly connected to a lower outer shell. Tightening the fastening block can adjust the height of the fixed shell, which facilitates the clamping of the cable.
[0009] Preferably, the outer surface of the slide rod is slidably connected to the inner wall of the fixed block, the slide rod passes through the fixed block, and the slide rod is installed inside the fixed block. When the limiting block slides, it plays a guiding role.
[0010] Preferably, a limiting plate is fixedly connected to the other end of the slide rod, a spring is sleeved on the outer surface of the slide rod, and the limiting plate is installed inside the slide rod. Under the action of the spring, the slide rod and the limiting block can be moved.
[0011] Preferably, one end of the spring is fixedly connected to one side of the limiting plate, and the other end of the spring is fixedly connected to one side of the fixing block. The spring is installed on the fixing block to play a fixing role.
[0012] Preferably, a sliding groove is provided on the inner side of the upper outer shell, and a plug is inserted into the inner side of the sliding groove. The lower surface of the plug is fixedly connected to the upper surface of the lower outer shell. The upper outer shell is provided with a sliding groove. When in use, the plug on the lower outer shell is inserted into the sliding groove to fix it.
[0013] Preferably, the upper surface of the upper shell is fixedly connected with a first needle, and the lower surface of the lower shell is fixedly connected with a second needle. The first and second needles are installed on the upper and lower shells to provide protection.
[0014] This utility model provides a pull-out wire anti-bird spike design, which has the following beneficial effects:
[0015] 1. This bird spike works by using a combination of a hydraulic telescopic rod, a movable plate, a clamping plate, a limiting block, a sliding rod, a spring, a limiting plate, a fixing block, a first threaded rod, a fastening block, and a second threaded rod. The hydraulic telescopic rod drives the movable plate to press down, and through the clamping engagement between the clamping plate and the limiting block, combined with the elastic restoring effect of the spring, it can adapt to wires of different diameters and maintain a constant clamping force, effectively preventing the bird spike from shifting or loosening under wind force, thus fixing the bird spike to the wire.
[0016] 2. This bird-proof spike works by using an upper shell, a lower shell, a first spike, a groove, an insert block, and a second spike in conjunction. The sliding engagement structure of the groove and the insert block allows the upper and lower shells to be quickly pulled apart or assembled without tools, greatly improving installation and maintenance efficiency. The first spike on the upper shell and the second spike on the lower shell form a double-layer protective structure, effectively expanding the bird-proof range and preventing birds from approaching or landing from different angles, thus improving the bird-proof effect. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism of this utility model;
[0020] Figure 4 This is an exploded view of the clamping mechanism of this utility model;
[0021] Figure 5 For the present utility model Figure 2 A magnified structural diagram at point A.
[0022] [Explanation of Key Component Symbols]
[0023] 1. Upper outer shell;
[0024] 2. Clamping mechanism; 201. Hydraulic telescopic rod; 202. Movable plate; 203. Clamping plate; 204. Limiting block; 205. Slide rod; 206. Spring; 207. Limiting plate; 208. Fixing block; 209. First threaded rod; 210. Fastening block; 211. Second threaded rod;
[0025] 3. Lower outer shell; 4. First needle penetration; 5. Sliding groove; 6. Insert block; 7. Second needle penetration. Detailed Implementation
[0026] This utility model embodiment provides a pull-out wire to prevent bird spikes.
[0027] Please see Figure 1 and Figure 5 The device includes an upper outer shell 1, with a first needle 4 fixedly connected to the upper surface of the upper outer shell 1 and a second needle 7 fixedly connected to the lower surface of the lower outer shell 3. The first needle 4 and the second needle 7 are installed on the upper outer shell 1 and the lower outer shell 3, respectively. The first needle 4 and the second needle 7 can prevent birds from standing on the power lines, thus providing protection. A sliding groove 5 is provided on the inner side of the upper outer shell 1, and a plug 6 is inserted into the inner side of the sliding groove 5. The lower surface of the plug 6 is fixedly connected to the upper surface of the lower outer shell 3. The upper outer shell 1 is provided with a sliding groove 5. When the device is installed, the plug 6 provided on the lower outer shell 3 can be inserted into the sliding groove 5, so that the upper outer shell 1 and the lower outer shell 3 can be combined together to facilitate the protection of the power lines.
[0028] Please see Figure 2 and Figure 3A clamping mechanism 2 is provided on the inner side of the upper outer shell 1. The clamping mechanism 2 includes a hydraulic telescopic rod 201 fixedly connected to the inner side of the upper outer shell 1. A movable plate 202 is fixedly connected to the telescopic end of the hydraulic telescopic rod 201. A locking plate 203 is fixedly connected to the lower surface of the movable plate 202. A limiting block 204 is locked to the inner side of the locking plate 203. A sliding rod 205 is fixedly connected to one side of the limiting block 204. A limiting plate 207 is fixedly connected to the other end of the sliding rod 205. A spring 206 is sleeved on the outer surface of the sliding rod 205. The limiting plate 207 is installed on the sliding rod 205. The limiting plate 207 can prevent the spring 206 installed on the sliding rod 205 from falling off, thus playing a limiting role.
[0029] Please see Figure 4 One end of the spring 206 is fixedly connected to one side of the limiting plate 207, and the other end of the spring 206 is fixedly connected to one side of the fixing block 208. Both ends of the spring 206 are installed on the limiting plate 207 and the fixing block 208, which serves to fix them. This allows the spring 206 to push the limiting block 204 to move. The outer surface of the slide rod 205 is slidably connected to the inner wall of the fixing block 208. The slide rod 205 passes through the fixing block 208 and is installed inside the fixing block 208. When the slide rod 205 slides, the fixing block 208 can fix the slide rod 205, which serves to fix it.
[0030] The lower surface of the limiting block 204 is slidably connected to the inner side of the fixing block 208. The lower surface of the fixing block 208 is fixedly connected to the first threaded rod 209, and the lower end of the first threaded rod 209 is threadedly connected to the fastening block 210. When the upper outer shell 1 and the lower outer shell 3 are spliced together, the hydraulic telescopic rod 201 can push the movable plate 202 and the locking plate 203 to move downward. When the locking plate 203 contacts the limiting block 204, the locking groove on the inner side of the locking plate 203 can be locked into the locking groove on the limiting block 204. The inner wall of the fastening block 210 is threaded with a second threaded rod 211. The lower end of the second threaded rod 211 is fixedly connected to the lower outer shell 3. The second threaded rod 211 is installed inside the fastening block 210. When the fastening block 210 is turned, the height of the fixing block 208 can be adjusted, thereby clamping the wire.
[0031] The hydraulic telescopic rod 201 in this application is a common electrical device in the prior art, and its model or specific structure will not be described in detail in this application.
[0032] Working principle: Insert the insert block 6 of the lower outer shell 3 along the sliding groove 5 of the upper outer shell 1 to complete the quick assembly of the upper outer shell 1 and the lower outer shell 3. Adjust the height of the first threaded rod 209 by rotating the fastening block 210 so that the opening of the clamping mechanism 2 adapts to the diameter of the wire. Activate the hydraulic telescopic rod 201 to push the movable plate 202 and the clamping plate 203 down. The groove on the inner side of the clamping plate 203 forms a wedge-shaped fit with the limiting block 204, forcing the limiting blocks 204 on both sides to slide towards the center. The sliding rod 205 slides within the fixed block 208, and the spring 206 is compressed to generate a reverse force. The limiting block 204 and the wire... The surface forms a three-point contact to achieve adaptive clamping. The spring 206 absorbs vibration energy through elastic deformation. The sliding cooperation between the slide rod 205 and the fixing block 208 allows for slight displacement. The hydraulic telescopic rod 201 provides constant pressure to compensate for clamping force loss. The first needle 4 of the upper shell 1 and the second needle 7 of the lower shell 3 form a three-dimensional protective net. The fastening block 210 can be quickly released by rotating in the opposite direction. The upper shell 1 and the lower shell 3 can be separated by pulling out the plug 6 for component replacement. The first needle 4 and the second needle 7 can be replaced individually when damaged, without the need for overall disassembly, thus enabling the bird spikes to be fixed on the wire.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pull-out wire anti-bird spike device, comprising an upper outer shell (1), characterized in that: The upper outer shell (1) is provided with a clamping mechanism (2) on its inner side. The clamping mechanism (2) includes a hydraulic telescopic rod (201) fixedly connected to the inner side of the upper outer shell (1). The telescopic end of the hydraulic telescopic rod (201) is fixedly connected to a movable plate (202). The lower surface of the movable plate (202) is fixedly connected to a locking plate (203). The inner side of the locking plate (203) is engaged with a limiting block (204). One side of the limiting block (204) is fixedly connected to a sliding rod (205). The lower surface of the limiting block (204) is slidably connected to the inner side of the fixing block (208), and the lower surface of the fixing block (208) is fixedly connected to a first threaded rod (209), and the lower end of the first threaded rod (209) is threadedly connected to a fastening block (210).
2. The pull-out wire bird spike protector according to claim 1, characterized in that: The inner wall of the fastening block (210) is threaded with a second threaded rod (211), and the lower end of the second threaded rod (211) is fixedly connected to the lower outer shell (3).
3. The pull-out wire anti-bird spike according to claim 1, characterized in that: The outer surface of the slide rod (205) is slidably connected to the inner wall of the fixing block (208), and the slide rod (205) passes through the fixing block (208).
4. A pull-out wire anti-bird spike according to claim 3, characterized in that: The other end of the slide rod (205) is fixedly connected to a limiting plate (207), and a spring (206) is sleeved on the outer surface of the slide rod (205).
5. A pull-out wire anti-bird spike according to claim 4, characterized in that: One end of the spring (206) is fixedly connected to one side of the limiting plate (207), and the other end of the spring (206) is fixedly connected to one side of the fixing block (208).
6. A pull-out wire anti-bird spike according to claim 2, characterized in that: The inner side of the upper outer shell (1) is provided with a sliding groove (5), and a plug (6) is inserted into the inner side of the sliding groove (5). The lower surface of the plug (6) is fixedly connected to the upper surface of the lower outer shell (3).
7. A pull-out wire anti-bird spike according to claim 6, characterized in that: The upper surface of the upper shell (1) is fixedly connected with a first needle (4), and the lower surface of the lower shell (3) is fixedly connected with a second needle (7).