Lightning rod damping support for circuit iron tower

Abstract

The utility model discloses a lightning rod damping support for a circuit iron tower, which relates to the technical field of electric power facility protection and comprises a base, a protection box is arranged on the outer wall of the base, and a lightning rod is mounted at the top of the base. Vibration energy is transmitted to enable the first damper and the buffer spring to be compressed, the vertical included angle between the first shear fork plate and the second shear fork plate is increased, the originally compressed reset piece is stretched due to the change of the included angle between the shear fork plates, and the reset piece does not rapidly reset to return to the compression state; the reset piece generates restoring force during resetting to drive the vertical included angle between the shear fork plates to be reduced, so that the first damper and the buffer spring are synchronously reset; the first damper and the buffer spring cooperate to accurately absorb and dissipate energy in each stage of vibration, and on the other hand, the included angle of the shear fork plate is flexibly changed and the reset piece is reliably reset, so that the damping structure quickly returns to the optimal state after the vibration and is stable and efficient, the continuous vibration coping capacity is enhanced, and the stability of the lightning rod is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to power facility protection technical field, concretely is a lightning rod shock -absorbing support for circuit iron tower. BACKGROUND

[0002] In the field of power transmission, as the key infrastructure supporting high-voltage transmission lines, circuit iron towers are widely distributed in various complex geographical environments, and their safe and stable operation plays a vital role in ensuring power supply. As the core component of circuit iron towers for lightning protection, lightning rods bear the heavy responsibility of guiding lightning into the ground to protect the iron tower and transmission lines from lightning damage.

[0003] The traditional lightning rod shock-absorbing support structure is simple in design and mostly uses rigid connection. When the circuit iron tower encounters strong winds, earthquakes, or vibrations caused by the operation of high-voltage transmission lines, the iron tower will sway. The rigid connection shock-absorbing support cannot effectively buffer the vibrations, causing the lightning rod to swing significantly synchronously with the iron tower. The large swing amplitude not only increases the risk of collision and damage between the lightning rod and other components of the iron tower, but also may cause damage to the structure of the lightning rod itself, affecting its lightning guiding effect. SUMMARY

[0004] The utility model aims at providing a lightning rod shock-absorbing support for circuit iron towers to solve the problems raised in the background.

[0005] To solve the above technical problems, the utility model provides a lightning rod shock-absorbing support for circuit iron towers, which includes a base, a protective box is provided on the outer wall of the base, and a lightning rod body is installed on the top of the base. It includes a first scissor plate, which is rotatably connected to an installation block extending from the inner bottom wall of the protective box and rotatably connected to a fixed block extending from the bottom of the base. A second scissor plate is rotatably connected to another installation block extending from the inner bottom wall of the protective box and rotatably connected to another fixed block extending from the bottom of the base. The middle part of the first scissor plate and the second scissor plate is rotatably connected. A first damper is fixedly installed between the upper and lower symmetrical fixed blocks and installation blocks. A buffer spring is fixedly installed between the upper and lower symmetrical fixed blocks and installation blocks, and the buffer spring is sleeved on the outer wall of the first damper,

[0006] A square block is fixedly installed on the first scissor plate, another square block is fixedly installed on the second scissor plate, and the two square blocks are symmetrically arranged. A reset member is fixedly installed between the two square blocks, and the shape of the reset member is set as corrugated.

[0007] Further, a guide rod is slidably arranged on the square block, the reset member is sleeved on the outer wall of the guide rod, and limit round blocks are fixedly installed at both ends of the guide rod.

[0008] Further, the top of the base is fixedly installed with a plurality of supports, the other end of the support is fixedly installed with a fixing sleeve, the fixing sleeve is sleeved on the outer wall of the lightning rod body, the support is composed of a slide rod and a sleeve, a second damper and a telescopic spring are fixedly installed between the slide rod and the sleeve, and the telescopic spring is sleeved on the second damper.

[0009] Further, the sleeve and the slide rod are fixedly installed with a mounting sleeve ring, and two reset springs are fixedly installed with a reset spring.

[0010] Further, the bottom ends of the supports are uniformly distributed on the base, and the supports are in an inclined state.

[0011] Further, the material of the reset member is spring steel.

[0012] Further, the bottom of the protection box is uniformly distributed with a plurality of hydrophobic holes.

[0013] Further, the support and the protection box are made of stainless steel, and the outer walls of the support and the protection box are coated with a waterproof material.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、in the utility model, when the lightning rod body is subjected to upward and downward vibration impact, the first damper and the buffer spring immediately start buffering and damping in cooperation, vibration energy transmission makes both compression, and the upward and downward included angle of the first shear plate and the second shear plate increases, the reset member in the original compression state is stretched due to the change of the included angle of the shear plate, but it is quickly reset to the compression state due to the corrugated shape and the spring material elasticity, during the reset, the reset member generates a restoring force, drives the upward and downward included angle of the shear plate to decrease, and promotes the efficient synchronous reset of the first shear plate, the second shear plate, the first damper and the buffer spring, on the one hand, the first damper and the buffer spring cooperate to accurately absorb and dissipate energy at each vibration stage, and reduce the vibration amplitude transmitted to the lightning rod body; on the other hand, the flexible change of the included angle of the shear plate and the reliable reset of the reset member make the shock-absorbing structure return to the best state after shock, are stable and efficient, and also enhance the continuous vibration resistance, guarantee the stability of the lightning rod body, and improve the reliability and safety of the circuit iron tower lightning protection system.

[0016] 2、The utility model discloses a first damper and a second damper are arranged on the first shear fork plate and the second shear fork plate of the lightning rod body respectively, when the circuit iron tower encounters external vibration such as strong wind or swing, the slide bar slides in the sleeve pipe, and the extension spring is compressed or stretched with quick response owing to the excellent elasticity, and the vibration energy is converted into the elastic potential energy and is stored up, and the first round impact of vibration is effectively buffered, at the same time, the second damper follows the unique damping principle, such as hydraulic damping relies on liquid flow resistance, friction damping borrows the friction of contact surface, and the mechanical energy produced by vibration is converted into heat energy and is dissipated in nothing, and the secondary vibration caused by spring rebound is prevented, and the vibration intensity that is transmitted to the lightning rod body is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the internal structure schematic diagram of the utility model;

[0018] Figure 2 It is the connecting structure schematic diagram of the first shear fork plate and the second shear fork plate in the utility model;

[0019] Figure 3 It is Figure 2 The structure enlarged view of A in the utility model;

[0020] Figure 4 It is Figure 2 The structure enlarged view of B in the utility model.

[0021] In the drawing: 1, base; 2, protection box; 3, lightning rod body; 4, first shear fork plate; 5, second shear fork plate; 6, first damper; 7, buffer spring; 8, square block; 9, reset piece; 10, support; 11, reset spring; 12, second damper; 13, extension spring; 14, mounting collar; 15, guide rod. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0024] Please refer to Figures 1-4As shown, a lightning rod shock-absorbing support for a circuit tower, comprising a base 1, the outer wall of the base 1 is provided with a protective box 2, the top of the base 1 is provided with a lightning rod body 3, comprising, a first scissor plate 4, rotatably connected to the mounting block extending out of the inner bottom wall of the protective box 2, the other end is rotatably connected to the fixed block extending out of the bottom of the base 1; a second scissor plate 5, rotatably connected to another mounting block extending out of the inner bottom wall of the protective box 2, the other end is rotatably connected to another fixed block extending out of the bottom of the base 1, the middle part of the first scissor plate 4 and the second scissor plate 5 is rotatably connected; a first damper 6 is fixedly installed between the upper and lower symmetrical fixed blocks and mounting blocks; a buffer spring 7 is fixedly installed between the upper and lower symmetrical fixed blocks and mounting blocks, the buffer spring 7 is sleeved on the outer wall of the first damper 6,

[0025] A square block 8 is fixedly installed on the first scissor plate 4, and another square block 8 is fixedly installed on the second scissor plate 5, the two square blocks 8 are symmetrically arranged; a reset member 9 is fixedly installed between the two square blocks 8, and the shape of the reset member 9 is corrugated.

[0026] When the lightning rod body 3 encounters vibration impact in the up-down direction, the first damper 6 and the buffer spring 7 immediately cooperate to start the buffer shock-absorbing process, and as the vibration energy is transmitted, the first damper 6 and the buffer spring 7 are compressed, and because the connection structures of the first damper 6 and the buffer spring 7 with the first scissor plate 4 and the second scissor plate 5 are closely related, the force acting at the moment of compression causes the up-down included angle of the first scissor plate 4 and the second scissor plate 5 to increase.

[0027] At the same time, the reset member 9 originally in the compressed state is stretched due to the change of the included angle of the scissor plates, and changes into a stretching device, however, the reset member 9 can quickly start the reset program from the stretched state to the compressed state due to its unique corrugated shape design and the elastic recovery ability of the spring material.

[0028] In the process of restoring the reset member 9 to its original state, it will generate a strong restoring force, which will accurately and powerfully drive the first scissor plate 4 and the second scissor plate 5, so that the up-down included angle gradually decreases, thus forming a benign cycle, which powerfully drives the first scissor plate 4, the second scissor plate 5, the first damper 6 and the buffer spring 7 to complete the reset action synchronously and efficiently.

[0029] On the one hand, the coordinated buffering of the first damper 6 and the buffer spring 7 can accurately exert force in different stages of vibration, quickly absorb and dissipate vibration energy, and greatly reduce the vibration amplitude transmitted to the lightning rod body 3. On the other hand, the flexible change of the included angle of the scissors plates and the reliable resetting function of the resetting member 9 not only ensure that the entire damping structure can quickly recover to the best working state after each vibration, maintain the stability and efficiency of the damping performance, but also greatly enhance the ability of the damping system to respond to continuous vibrations, ensuring that the lightning rod body 3 always remains stable in complex and variable environments, and effectively improving the reliability and safety of the lightning protection system of the circuit tower.

[0030] Referring to Figure 4 , a guide rod 15 is slidably arranged on the square block 8, and the resetting member 9 is sleeved on the outer wall of the guide rod 15. The two ends of the guide rod 15 are fixedly installed with limit round blocks.

[0031] The guide rod 15 arranged on the square block 8 provides an accurate guide path for the movement of the resetting member 9. When the resetting member 9 is converted between the stretched and compressed states, i.e. after the lightning rod body 3 experiences vibration and resets, the guide rod 15 ensures that the resetting member 9 moves in the predetermined direction. For example, after multiple consecutive up and down vibrations, if the resetting member 9 is not constrained by the guide rod 15, it may be skewed or twisted due to uneven stress, affecting the resetting effect of the first scissors plate 4 and the second scissors plate 5. With the guide rod 15, the resetting member 9 can always move stably along the axial direction of the rod, so that the included angle of the first scissors plate 4 and the second scissors plate 5 is accurately restored, ensuring that the entire damping bracket 10 structure quickly returns to the initial state and prepares for the next damping.

[0032] Referring to Figures 1-3 , the top of the base 1 is fixedly installed with a plurality of brackets 10, and the other end of the bracket 10 is fixedly installed with a fixed sleeve. The fixed sleeve is sleeved on the outer wall of the lightning rod body 3. The bracket 10 is composed of a slide rod and a sleeve pipe. The second damper 12 and the extension spring 13 are fixedly installed between the slide rod and the sleeve pipe. The extension spring 13 is sleeved on the second damper 12.

[0033] When the circuit tower encounters external vibrations or oscillations such as strong winds, the slide rod slides in the sleeve pipe at the moment, and the extension spring 13 quickly reacts by compressing or stretching due to its excellent elasticity, skillfully converting the vibration energy into elastic potential energy and storing it, effectively buffering the first round of impact of the vibration. At the same time, the second damper 12 follows its unique damping principle, such as hydraulic damping relying on fluid flow resistance or friction damping relying on contact surface friction, to efficiently convert the mechanical energy generated by the vibration into heat energy and other forms and dissipate it into nothingness, eliminating the secondary vibration caused by spring rebound. The two are in perfect harmony, greatly reducing the vibration intensity transmitted to the lightning rod body 3.

[0034] Referring to Figures 1-3The mounting sleeve ring 14 is fixedly installed on the sleeve and the slide rod, and the reset spring 11 is fixedly installed between the two reset springs 11.

[0035] The continuous vibration causes the bracket 10 to bear alternating stress, which is easy to cause metal fatigue. After the reset spring 11 is intervened, it shares part of the vibration energy, so that the stress peak of the slide rod and the sleeve is reduced and more evenly distributed. For example, in the earthquake-prone area, the reset spring 11 disperses the stress originally concentrated in the key parts of the slide rod and the sleeve through frequent stretching and contraction, delays the generation and expansion of fatigue cracks, and ensures that the bracket 10 can still work stably in a long-term complex environment, thereby protecting the lightning protection of the circuit tower.

[0036] Referring to Figures 1-2 The bottom ends of the brackets 10 are evenly distributed on the base 1, and the brackets 10 are in an inclined state.

[0037] When the circuit tower is subjected to a lateral force such as a horizontal thrust generated by strong wind or a horizontal force caused by an earthquake, the inclined bracket 10 can better decompose and transmit the lateral force. The inclination angle of the bracket 10 enables the force to be conducted along the axial direction of the bracket 10 to the base 1. Compared with the vertical bracket 10, the bracket 10 has the ability to decompose and convert the lateral force into the axial force of the bracket 10, thereby more effectively dispersing the lateral force and enhancing the ability of the entire structure to resist destruction by the lateral force.

[0038] Referring to Figures 1-2 The material of the reset member 9 is spring steel.

[0039] After multiple stretching and compression cycles, the spring steel can still maintain good elastic recovery ability. Compared with other materials, it is not easy to appear elastic fatigue phenomenon. This enables the reset member 9 to stably play a reset function in a long-term and frequent vibration environment, such as in an area with variable wind or an earthquake-prone area. For example, even after experiencing multiple vibrations caused by strong winds or small earthquakes, the reset member 9 can still rely on the elastic recovery ability of the spring steel to continuously and effectively reset the first and second shear plates 4 and 5, and maintain the normal working state of shock absorption.

[0040] Referring to Figure 1 The bottom of the protection box 2 is evenly distributed with a plurality of drainage holes.

[0041] The plurality of hydrophobic holes evenly distributed on the bottom of the protection box 2 can effectively drain the accumulated water in the protection box 2. In rainy days or in the case of condensation of dew, rainwater or water droplets may enter the interior of the protection box 2. If there is no hydrophobic hole, the accumulated water will accumulate in the protection box 2, which may submerge the components at the bottom, such as the first scissor plate 4, the second scissor plate 5, the first damper 6, the buffer spring 7, etc. The hydrophobic hole can drain the accumulated water in time to avoid the components being soaked in water for a long time and prevent damage due to water erosion.

[0042] Referring to Figure 1 The bracket 10 and the protection box 2 are both made of stainless steel, and the outer walls of both are coated with a waterproof material.

[0043] The stainless steel material itself has excellent corrosion resistance, which can effectively resist the erosion of water in rainwater, dew, and mist, as well as corrosive components such as oxygen and sulfur dioxide in the atmosphere, on the bracket 10 and the protection box 2. For example, in coastal areas, the salt content in the air is high, and ordinary metal materials are prone to rust and corrosion. However, the stainless steel bracket 10 and the protection box 2 can remain intact in such harsh high-salt environments for a long time, greatly reducing the risk of component damage caused by rust.

Claims

1. A lightning rod shock-absorbing support for a circuit tower, comprising a base (1), the outer wall of the base (1) is provided with a protective box (2), the top of the base (1) is provided with a lightning rod body (3), characterized in that: Comprising, a first scissor plate (4) is rotatably connected to an installation block extended from the inner bottom wall of the protection box (2), and the other end is rotatably connected to a fixed block extended from the bottom of the base (1); a second scissor plate (5) is rotatably connected to another installation block extended from the inner bottom wall of the protection box (2), and the other end is rotatably connected to another fixed block extended from the bottom of the base (1), and the middle part of the first scissor plate (4) and the second scissor plate (5) is rotatably connected; a first damper (6) is fixedly installed between the upper and lower symmetrical fixed blocks and installation blocks; a buffer spring (7) is fixedly installed between the upper and lower symmetrical fixed blocks and installation blocks, and the buffer spring (7) is sleeved on the outer wall of the first damper (6), a square block (8) is fixedly installed on the first scissor plate (4), and another square block (8) is fixedly installed on the second scissor plate (5), and the two square blocks (8) are symmetrically arranged; a reset member (9) is fixedly installed between the two square blocks (8), and the shape of the reset member (9) is corrugated.

2. A lightning rod shock absorber support for a circuit tower as defined in claim 1, characterized in that: A guide rod (15) is slidably arranged on the square block (8), the reset member (9) is sleeved on the outer wall of the guide rod (15), and the both ends of the guide rod (15) are fixedly installed with limit round blocks.

3. A lightning rod shock absorber for a lightning rod of a tower according to claim 2, characterized in that: A plurality of supports (10) are fixedly installed on the top of the base (1), the other end of the support (10) is fixedly installed with a fixed sleeve, the fixed sleeve is sleeved on the outer wall of the lightning rod body (3), the support (10) is composed of a slide rod and a sleeve, and a second damper (12) and a telescopic spring (13) are fixedly installed between the slide rod and the sleeve, and the telescopic spring (13) is sleeved on the second damper (12).

4. A lightning rod shock absorber for a circuit tower according to claim 3, characterized in that: A mounting sleeve ring (14) is fixedly installed on the sleeve and the slide rod, and two reset springs (11) are fixedly installed between the reset springs (11).

5. A lightning rod tip shock mount for a circuit tower as defined in claim 4 wherein: The bottom ends of the supports (10) are uniformly distributed on the base (1), and the supports (10) are in an inclined state.

6. A lightning rod tip shock mount for a circuit tower as defined in claim 5 wherein: The material of the reset member (9) is spring steel.

7. A lightning rod tip shock mount for a circuit tower as defined in claim 1 wherein: A plurality of drainage holes are uniformly distributed on the bottom of the protection box (2).

8. A lightning rod tip shock absorber for a circuit tower as defined in claim 3 wherein: The supports (10) and the protection box (2) are made of stainless steel, and the outer walls of the two are coated with waterproof material.

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