An overhead power line protection fitting

Abstract

The utility model relates to power system transmission line technical field discloses an overhead power line protection hardware, including two fixed rings, the adjacent side of two fixed rings is provided with protection mechanism, the top of fixed ring is provided with stabilizing mechanism, the stabilizing mechanism is used for adaptive adjustment under extreme terrain, the bottom of fixed ring is provided with stabilizing component, the protection mechanism includes two buffer rings, the opposite side of two buffer rings is fixedly connected with fixed shaft, the outer wall middle end of fixed shaft is fixedly connected with stress block, the adjacent side of two stress blocks is fixedly connected with spring left and right ends all. In the utility model, after the snow melts, the spring and the buffer block reset the bent electric wire, avoid long -term deformation damage, effectively improve the problem of existing technology under heavy ice pressure loss electric wire, significantly improve the power line security and durability.

Description

Technical Field

[0001] This utility model relates to the field of power system transmission line technology, and in particular to a protective fitting for overhead power lines. Background Technology

[0002] As an important component for connecting and protecting transmission lines, overhead power line protection fittings undertake the functions of fixing conductors, suppressing vibration, and balancing electric fields. Their performance is directly related to the safe and stable operation of the power grid. With the development of power systems towards higher voltage and larger capacity, higher requirements are placed on the adaptability of protection fittings in extreme environments. Especially in areas where heavy icing disasters occur frequently, the overload resistance and structural stability of the fittings have become technical problems that urgently need to be solved.

[0003] Early overhead power line protection hardware mostly used a single metal material, fixing the conductors through rigid bolt connections or simple clip structures. This revealed significant defects in heavy icing environments. On the one hand, the insufficient strength of the hardware itself led to a decrease in conductor holding force, and the weight of the ice easily caused the clamps to detach or break. On the other hand, the lack of elastic buffering design allowed the ice load impact to act directly on the hardware, accelerating structural fatigue. To solve these problems, existing technologies have improved the resistance to some extent by optimizing hardware materials and improving connection structures. However, under extreme heavy icing conditions, existing hardware still has obvious limitations. Although traditional spacer bars suppress conductor vibration by adding damping devices, their rigid linkages cannot adapt to large changes in conductor sag when the ice thickness is high, leading to uncontrolled spacing between sub-conductors and mutual collisions. Even with elastic rubber pads for buffering, the lack of a dynamic adjustment mechanism means that the local stress concentration problem between the clamp and the conductor cannot be effectively alleviated under continuous ice loads, ultimately leading to wear or even breakage of the outer aluminum strands of the conductor, seriously threatening the safe operation of power lines. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a protective hardware for overhead power lines, which aims to improve the problem in the prior art that under continuous ice load, the outer aluminum strands of the conductor eventually wear and even break, seriously threatening the safe operation of power lines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an overhead power line protection fitting, comprising two fixing rings, a protective mechanism provided on an adjacent side of the two fixing rings, a stabilizing mechanism provided on the top of the fixing rings, the stabilizing mechanism being used for adaptive adjustment under extreme terrain, and a stabilizing component provided on the bottom of the fixing rings;

[0006] The protective mechanism includes two buffer rings. A fixed shaft is fixedly connected to the left and right ends of the two buffer rings on opposite sides. A force-bearing block is fixedly connected to the middle of the outer wall of the fixed shaft. A spring is fixedly connected to the left and right ends of the two force-bearing blocks on adjacent sides. A buffer block is fixedly connected to the adjacent end of the multiple springs. A clamping block is fixedly connected to the outer wall of each buffer block.

[0007] As a further description of the above technical solution:

[0008] The stabilizing mechanism includes two stabilizing blocks. A stabilizing bar is fixedly connected to one side of each of the two stabilizing blocks. Multiple locking blocks are fixedly connected to the front and rear sides of each stabilizing bar. A slide rail is fixedly connected to the upper and lower parts of each stabilizing bar. A clamping block two is fixedly connected to the top of each slide rail. A fixing block is slidably connected to the top of the clamping block two. A clamping block three is fixedly connected to the front and rear parts of each fixing block.

[0009] As a further description of the above technical solution:

[0010] The stabilizing component includes a support block, the top left and right sides of which are fixedly connected to the bottom of the two fixing rings respectively. A balance block is fixedly connected to the middle of the outer wall of the support block, an elastic block is fixedly connected to the bottom of the balance block, and a gravity ball is fixedly connected to the bottom of the elastic block.

[0011] As a further description of the above technical solution:

[0012] Limiting blocks two are fixedly connected to the upper and lower parts of the two fixed rings on the opposite side. The inner wall of the limiting blocks two is threaded with a stabilizing shaft two, and the outer wall of the stabilizing shaft two is threaded with a wire clamp one.

[0013] As a further description of the above technical solution:

[0014] The inner walls of the two clamps are threaded with a stabilizing shaft, and the bottom of the outer wall of the stabilizing shaft is threaded with a clamp. An electric wire is slidably connected to the right side of the clamps.

[0015] As a further description of the above technical solution:

[0016] The right side of the wire is slidably connected to the left side of the wire clamp, and the bottom end of the stabilizing shaft is fixedly connected to the limiting block.

[0017] As a further description of the above technical solution:

[0018] The left and right sides of the fixed shaft are respectively connected to the front and rear ends of the two fixed rings on opposite sides, and the outer walls of the plurality of clamping blocks are respectively slidably connected to the corresponding positions on the outer wall of the wire.

[0019] As a further description of the above technical solution:

[0020] The bottom outer walls of the two clamping blocks three are threadedly connected to the front and rear sides of the outer wall of the clamping block two, and the inner wall of the slide rail is slidably connected to the outer wall of the clamping block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when snow accumulates, a clamping block secures the wire. After the snow melts, the spring and buffer block reset the bent wire, preventing long-term deformation damage. The fixed shaft and the force-bearing block form an anti-detachment structure to prevent the wire from falling off due to excessive snow weight. The buffer ring absorbs the impact force of falling ice and snow, reducing stress concentration. This effectively improves the problem of wire damage under heavy ice in the prior art and significantly enhances the safety and durability of power lines.

[0023] 2. In this utility model, the stabilizing block and the stabilizing strip form a basic frame, and the locking block and the slide rail cooperate with each other to allow the hardware to slide flexibly along the stabilizing strip, which is convenient for precise adjustment of the installation position according to complex terrain and overcomes the limitations of traditional hardware fixed installation; the combination of clamping block two, fixing block and clamping block three can firmly clamp the wire, ensure the installation stability and reliability of the hardware in extreme terrain, and significantly improve the adaptability of power lines in complex environments. Attached Figure Description

[0024] Figure 1 This is a perspective view of an overhead power line protection fitting proposed in this utility model;

[0025] Figure 2 This is a front view of an overhead power line protection fitting proposed in this utility model;

[0026] Figure 3 This is an exploded view of the protective mechanism of an overhead power line protection fitting proposed in this utility model;

[0027] Figure 4 This is an exploded view of the stabilization mechanism of an overhead power line protection fitting proposed in this utility model;

[0028] Figure 5 This is a partial structural diagram of an overhead power line protection fitting proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed ring; 2. Protective mechanism; 201. Buffer ring; 202. Fixed shaft; 203. Force-bearing block; 204. Spring; 205. Buffer block; 206. Clamping block one; 3. Stabilizing mechanism; 301. Stabilizing block; 302. Stabilizing bar; 303. Clamping block; 304. Slide rail; 305. Clamping block two; 306. Clamping block three; 307. Fixed block; 4. Wire clamp one; 5. Stabilizing component; 501. Support block; 502. Balance block; 503. Elastic block; 504. Gravity ball; 6. Stabilizing shaft one; 7. Wire clamp two; 8. Limiting block one; 9. Stabilizing shaft two; 10. Limiting block two; 11. Wire. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an overhead power line protection fitting, comprising two fixing rings 1, which provide a basic installation connection point and support for the fixing of the entire fitting to the power line. A protective mechanism 2 is provided on the adjacent side, which can buffer and protect the wire 11, reducing the damage to the wire 11 caused by external impact. A stabilizing mechanism 3 is provided at the top of the fixing ring 1, which is used for adaptive adjustment under extreme terrain, can adapt to complex terrain environment, and ensure the stability of the fitting during installation and use in special terrain. A stabilizing component 5 is provided at the bottom of the fixing ring 1, which can further enhance the overall stability of the fitting and ensure that the fitting remains stable during operation.

[0033] The protective mechanism 2 includes two buffer rings 201. The buffer rings 201 absorb external impact forces, reducing their impact on the wire 11 and other components of the fitting. Fixed shafts 202 are fixedly connected to the left and right ends of the two buffer rings 201 on opposite sides. The fixed shafts 202 connect the buffer rings 201 to the fixed rings 1, ensuring a stable connection between the protective mechanism 2 and the fitting. A force-bearing block 203 is fixedly connected to the middle of the outer wall of the fixed shaft 202. The force-bearing block 203 can bear and disperse pressure from the wire 11 and external forces, preventing excessive localized stress. Springs 204 are fixedly connected to the left and right ends of adjacent sides of the two force-bearing blocks 203. The springs 204, through elastic deformation, buffer the force on the wire 11, relieving the pressure on the wire 11. Each of the adjacent ends of multiple springs 204 is fixedly connected to a buffer block 205. The buffer block 205 can cooperate with the spring 204 to further buffer the pressure and prevent the spring 204 from directly contacting the wire 11 and causing damage. Each buffer block 205 is fixedly connected to a clamping block 206. The clamping block 206 is used to fasten and clamp the wire 11 to ensure the stable position of the wire 11 in the hardware. The left and right sides of the fixed shaft 202 are respectively connected to the front and rear ends of the two fixed rings 1 on opposite sides, so as to realize the stable assembly of the protective mechanism 2 and the fixed ring 1. The outer walls of the multiple clamping blocks 206 are slidably connected to the corresponding positions on the outer wall of the wire 11, and the position can be adjusted according to the change of the state of the wire 11 to always maintain effective clamping of the wire 11.

[0034] Specifically, the two fixing rings 1 serve as basic connecting components, providing support for the fixing of the fittings to the power lines. The stabilizing mechanism 3 at the top can adaptively adjust under extreme terrain, adapting to complex terrain through structural adjustments to ensure the stability of the fittings during installation and use. The stabilizing component 5 at the bottom further enhances the overall stability, ensuring the stable operation of the fittings. In the adjacent protective mechanism 2, the two buffer rings 201 directly absorb external impact forces, reducing the impact on the wires 11 and other components of the fittings. They are connected to the fixing rings 1 through the fixing shaft 202, achieving a stable assembly of the protective mechanism 2 and the fittings as a whole. The force-bearing blocks 203 on the fixing shaft 202 bear and disperse the pressure from the wires 11 and external forces, avoiding excessive local stress. When the wire 11 is subjected to force, the spring 204 undergoes elastic deformation, which acts as a buffer to relieve the pressure on the wire 11. The buffer block 205 works with the spring 204 to further buffer the pressure and prevent the spring 204 from directly contacting and damaging the wire 11. The clamping block 206 on the outer wall of the buffer block 205 firmly clamps the wire 11, ensuring the stable position of the wire 11 in the hardware. The clamping block 206 can slide and adjust its position on its outer wall according to the state of the wire 11, always maintaining effective clamping. The cooperation of each component enables the hardware to adapt to extreme terrain for stable installation and to provide buffer protection for the wire 11 during operation, preventing damage from external impacts. At the same time, it maintains the overall stability of the hardware and ensures the safe operation of the overhead power line.

[0035] Reference Figure 1 and Figure 4 The stabilizing mechanism 3 includes two stabilizing blocks 301, which provide basic support for the stabilizing mechanism 3 and ensure the stability of the overall structure. A stabilizing bar 302 is fixedly connected to an adjacent side of the two stabilizing blocks 301. The stabilizing bar 302, as the main component connecting the stabilizing blocks 301, strengthens the overall rigidity of the stabilizing mechanism 3. Multiple locking blocks 303 are fixedly connected to the front and rear sides of the stabilizing bar 302. The locking blocks 303 provide a positioning reference for the sliding rail 304, ensuring the stability of the sliding of the sliding rail 304. Sliding rails 304 are fixedly connected to the upper and lower parts of the stabilizing bar 302, and the sliding rails 304 cooperate with the locking blocks 303. To enable the fittings to be positioned in extreme terrains and adapt to complex installation environments, a second clamping block 305 is fixedly connected to the top of the slide rail 304. The second clamping block 305 is used to initially clamp and fix the wire 11, providing a foundation for subsequent fixing operations. A fixing block 307 is slidably connected to the top of the second clamping block 305. The fixing block 307 can slide and adjust its position along the second clamping block 305, facilitating precise fixing according to the actual situation of the wire 11. A third clamping block 306 is fixedly connected to both the front and rear of the fixing block 307. The third clamping block 306 cooperates with the second clamping block 305 to achieve a stable clamping of the wire 11, preventing the wire 11 from slipping on the fittings. The outer walls of the two clamping blocks 306 are threaded to the front and rear sides of the outer walls of the clamping block 205. This threaded connection enhances the connection strength between the clamping blocks 306 and 205, ensuring the secure fixation of the wire 11. The inner wall of the slide rail 304 is slidably connected to the outer wall of the locking block 303, enabling the stabilizing mechanism 3 to adapt to extreme terrain conditions and meet installation requirements under different terrain conditions. The stabilizing component 5 includes a support block 501, which connects the fixing ring 1 to the lower component, providing a support base for the entire hardware. The top left and right sides of the support block 501 are respectively fixedly connected to two… At the bottom of the fixed ring 1, a stable connection is achieved between the stabilizing component 5 and the fixed ring 1, ensuring the integrity of the hardware structure. A balance block 502 is fixedly connected to the middle of the outer wall of the support block 501. The balance block 502 plays the role of balancing the force on the hardware, so that the hardware remains stable during operation. An elastic block 503 is fixedly connected to the bottom of the balance block 502. The elastic block 503 absorbs external impact force through elastic deformation, reducing the impact force on the overall hardware. A gravity ball 504 is fixedly connected to the bottom of the elastic block 503. The gravity ball 504 uses its own gravity to further enhance the stability of the hardware and prevent the hardware from shaking or shifting during operation.

[0036] Specifically, the stabilizing mechanism 3 and the stabilizing component 5 work together to ensure the stable operation of the fitting. The stabilizing block 301 provides basic support for the stabilizing mechanism 3. The stabilizing bar 302 connects the two stabilizing blocks 301 to enhance the overall rigidity. The locking block 303 provides a sliding positioning reference for the slide rail 304. The slide rail 304 slides along the locking block 303, allowing the fitting to be adjusted in position under extreme terrain to adapt to complex installation environments. The clamping block 2 305 at the top of the slide rail 304 initially clamps the wire 11. After the fixing block 307 slides along the clamping block 2 305 to adjust its position, the clamping block 306, connected by threads, cooperates with the clamping block 2 305 to firmly clamp the wire 11 and prevent it from loosening. In the stabilizing component 5, the support block 501 connects the fixing ring 1 to the lower component, achieving a stable connection with the fixing ring 1 and providing a support foundation for the entire fitting; the balance block 502 on the support block 501 balances the force on the fitting, keeping the fitting stable; the elastic block 503 at the bottom of the balance block 502 absorbs external impact through elastic deformation, reducing the impact on the fitting; the gravity ball 504 at the bottom of the elastic block 503 uses its own gravity to further enhance the stability of the fitting, preventing swaying or displacement; the stabilizing mechanism 3 enables the fitting to adapt and be fixed to the wire 11 under extreme terrain; the stabilizing component 5 enhances the overall force balance and impact resistance of the fitting, ensuring the safety of the power line.

[0037] Reference Figure 1 , Figure 4 and Figure 5 Limiting blocks 10 are fixedly connected to the upper and lower parts of the two opposite sides of the fixing rings 1. Limiting blocks 10 are used to limit the position of the stabilizing shaft 9, prevent it from shifting, and ensure the stability of the hardware structure. The inner wall of the limiting block 10 is threaded with the stabilizing shaft 9. The stabilizing shaft 9 provides the installation base and fixed support for the wire clamp 4 through the threaded connection with the limiting block 10. The outer wall of the stabilizing shaft 9 is threaded with the wire clamp 4. The wire clamp 4 is used to initially clamp the wire 11 and fix the position of the wire 11. The upper and lower parts of the inner walls of the two wire clamps 4 are threaded with stabilizing shafts 6. The stabilizing shafts 6 provide the installation connection point for the wire clamp 7, ensuring the connection between the wire clamp 7 and the wire clamp 4. The stabilizing shaft 6 has a threaded connection at the bottom of its outer wall to a wire clamp 7. The wire clamp 7 cooperates with the wire clamp 4 to further clamp the wire 11 and enhance the fixing effect of the wire 11. The wire 11 is slidably connected to the right side of the wire clamp 4, so that the wire 11 can be smoothly installed into the wire clamp 4 for easy clamping and fixing. The right side of the wire 11 is slidably connected to the left side of the wire clamp 7 to achieve stable clamping of the wire 11 between the wire clamp 4 and the wire clamp 7, preventing the wire 11 from loosening or falling off. The bottom end of the stabilizing shaft 6 is fixedly connected to a limit block 8, which is used to limit the movement range of the stabilizing shaft 6 to prevent it from detaching from the wire clamp 7 and ensure the reliability of the entire clamping structure.

[0038] Specifically, the two fixing rings 1 serve as basic connecting components. The limiting blocks 10 on the upper and lower parts of their opposite sides are threadedly connected to the stabilizing shaft 9. The limiting blocks 10 restrict the position of the stabilizing shaft 9, preventing it from shifting and providing stability to the hardware structure. Simultaneously, the stabilizing shaft 9 provides an installation base and fixed support for the wire clamp 4. The wire clamp 4, through its threaded connection to the stabilizing shaft 9, initially clamps the wire 11, fixing its position. Subsequently, the stabilizing shaft 6 is threaded to the upper and lower parts of the inner wall of the wire clamp 4, providing installation connection points for the wire clamp 7, ensuring a secure connection between the wire clamp 7 and the wire clamp 4. The wire clamp 7 is then threaded to the bottom of the outer wall of the stabilizing shaft 6. Next, in conjunction with wire clamp 4, the wire 11 is further clamped to enhance the fixing effect. The wire 11 is slidably connected to the right side of wire clamp 4 and the left side of wire clamp 7 to achieve stable clamping and prevent loosening or falling off. The limiting block 8 at the bottom of the stabilizing shaft 6 restricts the movement range of the stabilizing shaft 6 to prevent it from detaching from wire clamp 7, ensuring the reliability of the entire clamping structure. The components cooperate with each other through threaded and sliding connections, forming a complete and stable wire 11 fixing system from basic support and position limitation to multi-layer clamping. This ensures the stable connection between the wire 11 and the hardware during the operation of the overhead power line and avoids safety hazards caused by loose connections.

[0039] Working principle: In extreme heavy ice conditions, to prevent the wire 11 from falling off the hardware due to excessive snow pressure, when the wire 11 is under great pressure, the clamping block 206 works to ensure that the wire 11 is always fixed. When the temperature rises and the snow begins to melt, the pressure on the wire 11 gradually decreases, and the reset mechanism composed of the spring 204 and the buffer block 205 begins to function. The spring 204 has good elastic deformation and recovery ability. After the snow pressure disappears, the spring 204 releases elastic potential energy, pushing the buffer block 205 to move upward, thereby driving the wire 11 to slowly reset. The surface of the buffer block 205 is made of flexible buffer material, which can avoid hard pulling on the wire 11 during the reset process, effectively reducing fatigue damage to the wire 11 caused by repeated bending, and preventing cracks and broken strands in the metal wire.

[0040] Furthermore, construction workers can slide the slide rail 304 along the outer wall of the clamping block 303 on the stabilizing strip 302. Once the position is determined, the wire 11 is securely fixed. The clamping block 2 305 and clamping block 306 clamp the wire 11 from both sides in a ring-like manner. By increasing the contact area, the pressure is dispersed to avoid damaging the wire 11. The fixing block 307 further strengthens the fixing effect and prevents the wire 11 from falling off during subsequent operation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective fitting for overhead power lines, comprising two fixing rings (1), characterized in that: A protective mechanism (2) is provided on one side of each of the two fixed rings (1), a stabilizing mechanism (3) is provided on the top of the fixed ring (1), the stabilizing mechanism (3) is used for adaptive adjustment under extreme terrain, and a stabilizing component (5) is provided on the bottom of the fixed ring (1). The protective mechanism (2) includes two buffer rings (201). The left and right ends of the two buffer rings (201) on opposite sides are fixedly connected to a fixed shaft (202). The middle of the outer wall of the fixed shaft (202) is fixedly connected to a force-bearing block (203). The left and right ends of the adjacent sides of the two force-bearing blocks (203) are fixedly connected to a spring (204). The adjacent ends of the multiple springs (204) are fixedly connected to a buffer block (205). The outer wall of the buffer block (205) is fixedly connected to a clamping block (206).

2. The overhead power line protection fitting according to claim 1, characterized in that: The stabilizing mechanism (3) includes two stabilizing blocks (301). A stabilizing bar (302) is fixedly connected to one side of each of the two stabilizing blocks (301). Multiple locking blocks (303) are fixedly connected to the front and rear sides of each stabilizing bar (302). A slide rail (304) is fixedly connected to the upper and lower parts of each stabilizing bar (302). A clamping block two (305) is fixedly connected to the top of each slide rail (304). A fixing block (307) is slidably connected to the top of each clamping block two (305). A clamping block three (306) is fixedly connected to the front and rear parts of each fixing block (307).

3. The overhead power line protection fitting according to claim 1, characterized in that: The stabilizing component (5) includes a support block (501), the top left and right sides of the support block (501) are fixedly connected to the bottom of the two fixing rings (1), a balance block (502) is fixedly connected to the middle of the outer wall of the support block (501), an elastic block (503) is fixedly connected to the bottom of the balance block (502), and a gravity ball (504) is fixedly connected to the bottom of the elastic block (503).

4. The overhead power line protection fitting according to claim 1, characterized in that: Limiting blocks two (10) are fixedly connected to the upper and lower parts of the two fixed rings (1) on the opposite side. The inner wall of the limiting block two (10) is threaded with a stabilizing shaft two (9), and the outer wall of the stabilizing shaft two (9) is threaded with a wire clamp one (4).

5. The overhead power line protection fitting according to claim 4, characterized in that: The inner walls of the two wire clamps (4) are threaded with a stabilizing shaft (6) at the top and bottom. The outer wall of the stabilizing shaft (6) is threaded with a wire clamp (7). The right side of the wire clamp (4) is slidably connected with an electric wire (11).

6. The overhead power line protection fitting according to claim 5, characterized in that: The right side of the wire (11) is slidably connected to the left side of the wire clamp (7), and the bottom end of the stabilizing shaft (6) is fixedly connected to the limiting block (8).

7. The overhead power line protection fitting according to claim 5, characterized in that: The left and right sides of the fixed shaft (202) are respectively connected to the front and rear ends of the two fixed rings (1) on opposite sides, and the outer walls of the multiple clamping blocks (206) are respectively slidably connected to the corresponding positions of the outer wall of the wire (11).

8. The overhead power line protection fitting according to claim 2, characterized in that: The bottom outer walls of the two clamping blocks three (306) are threadedly connected to the front and rear sides of the outer wall of the clamping block two (305), and the inner wall of the slide rail (304) is slidably connected to the outer wall of the card block (303).

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