A support device for live supporting an insulator of a power transmission line
By designing an insulator support device with alarm, recording, and cleaning functions, automated monitoring and cleaning of insulator strings were achieved, solving the problems of severe shaking and the influence of dirt, and improving safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PINGXIANG OHM INSULATOR CO LTD
- Filing Date
- 2026-03-17
- Publication Date
- 2026-06-09
AI Technical Summary
Existing insulator support devices cannot record and alarm in a timely manner under strong winds, icing, or short-circuit electromagnetic forces, which increases the risk of failure when the insulator strings shake violently. Furthermore, they cannot effectively clean dirt from the insulator surface, affecting insulation performance.
A support device including alarm, recording and cleaning devices was designed. The device uses a mechanical-hydraulic linkage structure to realize automatic alarm and data recording, and uses wind power to drive the cleaning device for self-cleaning. The insulator string is automatically monitored and cleaned by hydraulic rods and wind-driven cleaning brushes respectively.
It improves the accuracy and timeliness of alarms for severe shaking of insulator strings, provides visualized shaking data support, reduces the accuracy of fault warnings, reduces manual cleaning costs, improves the cleanliness of insulator surfaces, and reduces the risk of flashover accidents.
Smart Images
Figure CN122177597A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of power maintenance equipment, specifically relating to a support device for supporting insulators of live transmission lines. Background Technology
[0002] An insulator is a power insulation device specifically installed between conductors at different potentials, or between a conductor and a grounding component. Its core function is to reliably withstand high-voltage loads and mechanical stresses during system operation, ensuring electrical isolation and structural stability of the power transmission path. An insulator string, a key component formed by combining multiple insulator units through specific connection methods, simultaneously undertakes a dual core function in the power system: on the one hand, it fixes transmission lines through a high-strength mechanical support structure, resisting complex mechanical loads such as wind, icing, and conductor weight; on the other hand, it relies on its excellent insulation performance to block current leakage paths, ensuring the safe operation of the transmission network. The development of this technology has always revolved around the dynamic balance of three core contradictions—namely, while continuously improving the isolation capability of high-voltage levels, it is necessary to simultaneously optimize the mechanical bearing strength to adapt to the needs of ultra-high voltage and extra-high voltage transmission, and to enhance the long-term tolerance performance under complex environmental conditions such as extreme temperature and humidity, pollution, and corrosion, thereby achieving the safe, stable, and efficient continuous operation of the power system.
[0003] CN118800529A discloses a support device for supporting insulators of energized transmission lines. The insulator mounting assembly includes an inner locking seat with an embedded groove installed at the end of a top support rod. The embedded groove extends through the inner locking seat in a second direction and extends through the end of the inner locking seat away from the top support rod in a first direction. This application aims to reduce insulator string swaying and prevent insulator string breakage. However, under the influence of strong winds, icing, or short-circuit electromagnetic forces, transmission line insulator strings may experience large-amplitude, low-frequency swaying. Existing insulator support devices primarily function as mechanical supports and buffers. While these can mitigate swaying, severe swaying during inspection cycles cannot be recorded and alarmed in a timely manner, potentially leading to operation with hidden dangers and increasing the risk of failure. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a support device for supporting insulators of live transmission lines, thus solving the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides a support device for supporting insulators of energized transmission lines, comprising a tower body, an mounting base fixedly installed on the upper side of the tower body, an insulator string passing through and installed on the left side of the mounting base, a fixing base fixedly installed on the lower side of the tower body, an alarm device mounted on the right side of the fixing base, the alarm device comprising a fixing rod fixedly installed on the right side of the fixing base, a rotating cylinder rotatably connected to the right side of the fixing rod, a torsion spring fixedly installed on the left side of the rotating cylinder, a bell fixedly installed on the right side of the rotating cylinder, a connecting shaft rotatably installed on the right side of the connecting shaft, a hollow ring fixedly installed on the right side of the hollow ring, a hydraulic chamber I passing through and installed inside the hollow ring, a hydraulic rod I slidably connected to one end of the hydraulic chamber I by a piston, a hydraulic rod II slidably connected to the other end of the hydraulic chamber I by a piston, a limit rod fixedly installed on the left side of the hydraulic rod II, a push plate slidably installed on the inner wall of the hollow ring, and a spring I fixedly installed on the left side of the push plate.
[0006] Preferably, the surface of the rotating drum is provided with a groove, and the limiting rod cooperates with the groove.
[0007] Preferably, the insulator string includes a string rod and insulators mounted on the string rod, wherein the insulators are mounted in a series through the string rod.
[0008] Preferably, the hollow ring has a groove in the middle, and the groove slides in conjunction with the push plate.
[0009] Preferably, the bottom of the fixing base is equipped with a recording device for recording the degree of swaying of the insulator string.
[0010] Preferably, the recording device includes a mounting plate fixedly installed at the bottom of the fixed base, and a hydraulic chamber two that penetrates and is fixedly installed in the hollow ring. An L-shaped mounting plate is fixedly installed on the surface of the mounting plate. A spring two is fixedly installed on the left side of the L-shaped mounting plate. A recording rod is fixedly installed on the left side of the spring two. A hydraulic rod three is slidably connected to a piston at one end inside the hydraulic chamber two. A hydraulic rod four is slidably connected to a piston at the other end inside the hydraulic chamber two. A connecting block is fixedly installed at the bottom of the hydraulic rod four. A limit block is fixedly installed at the bottom of the connecting block.
[0011] Preferably, the second spring and the recording rod are mounted vertically on the L-shaped mounting plate, and the recording rod is slidably connected to the surface of the L-shaped mounting plate.
[0012] Preferably, the top of the mounting base is equipped with a cleaning device for rotating and cleaning the insulator string.
[0013] Preferably, the cleaning device includes a U-shaped mounting base on the top of the fixed mounting base and a second pulley mounted on the top of the cleaning insulator string. A main shaft is rotatably connected through the middle of the U-shaped mounting base. A fan blade is provided on the outer side of the top of the main shaft. A first pulley is mounted on the bottom of the main shaft. The first pulley and the second pulley are connected by a belt drive. A rotating wheel is fixedly installed on the bottom of the second pulley, and a cleaning rod is provided on the outer side of the rotating wheel.
[0014] Preferably, the bottom of the cleaning rod is provided with a cleaning brush, which is made of nylon.
[0015] The advantages of this application are: (1) In strong winds, the insulator string shakes violently. Under the violent shaking, the insulator string overcomes the elasticity of spring one and pushes the push plate to squeeze hydraulic rod one. Hydraulic rod one retracts and hydraulic rod two extends, driving the limit rod to extend outward and release the limit. The bell on the rotating drum rotates and makes a sound to remind the staff that the insulator string is shaking violently. This design enables the alarm device to be automatically triggered and deactivated according to the degree of shaking of the insulator string, which greatly improves the accuracy and timeliness of the alarm.
[0016] (2) When the insulator string shakes violently, the hollow ring swings synchronously with the insulator string, and the push plate on its inner wall squeezes the hydraulic rod three under the action of the shaking force. The hydraulic rod three and hydraulic rod four in the hydraulic chamber two are linked by hydraulic oil. Affected by the pressure difference generated by the shaking, they undergo axial displacement. The hydraulic rod four pushes the connecting block to drive the limiting block to move downward, so that the recording rod that was originally limited slides along the groove on the surface of the L-shaped mounting plate under the action of the elastic restoring force of the spring two. Multiple sets of parallel recording rods generate differentiated displacements according to the shaking amplitude, forming a continuous wave-shaped trajectory on the surface of the mounting plate, which intuitively reflects the shaking amplitude and frequency changes of the insulator string, and provides visual data support for the analysis of the line operation status.
[0017] (3) In windy weather, the cleaning device of this application captures natural wind energy by driving the fan blades, which drives the main shaft to rotate stably. The power is efficiently transmitted to the rotating wheel through the belt drive mechanism, making it rotate synchronously. The nylon brush at the bottom of the cleaning rod rotates and makes close contact with the surface of the insulator string. Through the rotational motion, it achieves line contact cleaning of the arc contour of the insulator string, effectively removing various attachments such as ice, dust, and bird droppings, ensuring the cleanliness of the insulator surface to maintain good insulation performance. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the alarm device structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the alarm device structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the recording device structure of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the recording device structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the cleaning device structure of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the cleaning device structure of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the cleaning device structure of the present invention. Figure 3 .
[0019] Explanation of key figure labels: 100. Tower body; 200. Mounting base; 300. Fixing base; 400. Insulator string; 500. Alarm device; 501. Fixing rod; 502. Rotating drum; 503. Torsion spring; 504. Connecting shaft; 505. Rotating bell; 506. Hollow ring; 507. Push plate; 508. Spring 1; 509. Hydraulic chamber 1; 510. Hydraulic rod 1; 511. Hydraulic rod 2; 512. Limiting rod; 600. Recording device; 601. Mounting plate; 602. L-shaped mounting plate; 603. Spring 2; 604. Recording rod; 605. Hydraulic chamber 2; 606. Hydraulic rod 3; 607. Hydraulic rod 4; 608. Connecting block; 609. Limiting block; 700. Cleaning device; 701. U-shaped mounting base; 702. Main shaft; 703. Fan blade; 704. Pulley 1; 705. Pulley 2; 706. Belt; 707. Rotary wheel; 708. Cleaning rod. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.
[0021] Example 1, as Figures 1-4This diagram illustrates a support device for supporting insulators on energized transmission lines. Its core function is to provide safe support and early warning of abnormal conditions for energized transmission lines. It includes a tower body 100, ensuring it can withstand the vertical load and horizontal tension of the insulator string 400 and the transmission line. A mounting base 200 is fixedly installed on the upper side of the tower body 100. An insulator string 400 is installed through and on the left side of the mounting base 200. The insulator unit adopts an umbrella skirt structure design, providing both electrical insulation and enhanced overall mechanical strength through series combination, effectively blocking current paths between conductors at different potentials. The insulator string 400 includes a string rod and insulators installed on the string rod. The insulators are arranged in rows through the string rod. A fixing seat 300 is fixedly installed on the lower side of the tower body 100. An alarm device 500 is mounted on the right side of the fixing seat 300. The alarm device 500 includes a fixing rod 501 fixedly installed on the right side of the fixing seat 300. A rotating drum 502 is rotatably connected to the right side of the fixing rod 501. The surface of cylinder 502 has grooves. A torsion spring 503 is fixedly installed on the left side of the rotating cylinder 502 to provide reset torque. A bell 505 is fixedly installed on the right side of the rotating cylinder 502, which makes a sound when rotating. A connecting shaft 504 is rotatably installed on the right side of the rotating cylinder 502. A hollow ring 506 is fixedly installed on the right side of the connecting shaft 504. A groove is opened in the middle of the hollow ring 506, and the groove slides with the push plate 507. A hydraulic chamber 509 is installed through the hollow ring 506. The hydraulic pressure inside 09 is in a balanced state. The limit rod 512 is locked into the groove on the surface of the rotating drum 502. The piston at one end of the hydraulic chamber 509 is slidably connected to the hydraulic rod 510. The piston at the other end of the hydraulic chamber 509 is slidably connected to the hydraulic rod 511. The limit rod 512 is fixedly installed on the left side of the hydraulic rod 511. The limit rod 512 cooperates with the groove. The push plate 507 is slidably installed on the inner wall of the hollow ring 506. The spring 508 is fixedly installed on the left side of the push plate 507.
[0022] When the above-mentioned equipment is used, the insulator string 400 will shake violently when encountering strong winds. During the violent shaking of the insulator string 400, it applies a periodic lateral impact force to the push plate 507 through the connecting structure. This force needs to overcome the elastic effect of the spring 508 and push the push plate 507 to slide linearly along the inner wall of the hollow ring 506, thereby squeezing the hydraulic rod 510. When hydraulic rod 510 is subjected to axial compressive force, it retracts into hydraulic chamber 509. At this time, the hydraulic oil filled in hydraulic chamber 509 forms pressure transmission in the closed space. When hydraulic rod 510, which is slidably connected to a piston at one end, retracts, it drives hydraulic rod 511, which is slidably connected to a piston at the other end, to extend synchronously. During the extension of hydraulic rod 511, it extends radially outward through the fixed connection of the left-side limiting rod 512. When the limiting rod 512 completely disengages from the groove and releases the limiting, the rotating drum 502 rotates around the axis of the fixed rod 501 under the combined action of the force generated by the shaking of the insulator string 400 and the torsion spring 503. When the rotating drum 502 rotates, the bell 505, which is fixed to its right side through a key, rotates synchronously. The bell 505 emits a warning sound. This sound has a high propagation distance in outdoor environments, thus accurately reminding maintenance personnel that the insulator string 400 has experienced violent shaking that endangers equipment safety.
[0023] Example 2, as Figures 1-6 The diagram illustrates a support device for supporting insulators on energized transmission lines. A recording device 600 for recording the degree of swaying of the insulator string 400 is mounted on the bottom of a fixed base 300. This device achieves precise monitoring of the dynamic state of the transmission line through a mechanical-hydraulic linkage structure. The recording device 600 includes a mounting plate 601 fixedly installed on the bottom of the fixed base 300 and a hydraulic chamber 605 penetrating and fixedly installed in a hollow ring 506. The mounting plate 601 is rigidly connected to the tower body 100 by bolts to ensure the stability of the monitoring data. An L-shaped mounting plate 602 is fixedly installed on the surface of the mounting plate 601. A second spring 603 is fixedly installed on the left side of the mounting plate 602. The second spring 603 and the recording rod 604 are arranged in a row on the L-shaped mounting plate 602. The recording rod 604 is fixedly installed on the left side of the second spring 603. The sliding fit design between the recording rod 604 and the L-shaped mounting plate 602 realizes the linear displacement recording function. A hydraulic rod 606 is slidably connected to the piston at one end of the hydraulic chamber 605. A hydraulic rod 607 is slidably connected to the piston at the other end of the hydraulic chamber 605. A connecting block 608 is fixedly installed at the bottom of the hydraulic rod 607. A limit block 609 is fixedly installed at the bottom of the connecting block 608.
[0024] In practical use, when the insulator string 400 encounters strong winds and shakes violently, the arc-shaped push plate 507 on the inner wall of the hollow ring 506 slides back and forth along the guide rail. Axial compressive force is applied to the 12mm diameter hydraulic rod 606 through the hemispherical contact head. The hydraulic chamber 605 is filled with hydraulic oil to form a closed hydraulic system. When the hydraulic rod 606 retracts inward, a pressure difference is generated in the hydraulic chamber, driving the hydraulic rod 607 to move synchronously outward axially. The hydraulic rod 607 is fixedly connected to the connecting block 608, causing it to move linearly along the T-shaped guide rail. The structure at the bottom of the connecting block 608 pushes the limiting block 609 downward against the preload. At this time, the recording rod 604, originally pressed by the limiting block 609, moves along the surface of the L-shaped mounting plate 602 under the elastic restoring force of the spring 603. The guide rail slides to the left. When the insulator string 400 sways slightly, the corresponding recording rod displacement is one; when the swaying amplitude is large, the displacement increases to multiple. Multiple sets of recording rods 604 generate differentiated displacements according to the real-time swaying angle, ultimately tracking the trajectory on the mounting plate surface. This device offers significant technical advantages: quantitative recording of swaying data, with the quantity corresponding to the swaying frequency, and the quantity directly reflecting amplitude changes. Data acquisition errors are small. It adopts a purely mechanical structure design, requiring no electric drive, yet maintains stable operation and a mean time between failures (MTBF). It provides visualized data support for line condition assessment. By comparing historical quantities, potential faults such as loose insulator strings and worn hardware can be identified in advance, improving the accuracy of fault warnings and facilitating maintenance. The recording rod and guide rail use a quick-release structure, resulting in shorter replacement time and reduced annual maintenance costs.
[0025] Example 3, as Figures 1-9 The diagram illustrates a support device for supporting insulators on live transmission lines. The top of the mounting base 200 is equipped with a cleaning device 700 for rotating and cleaning the insulator string 400. This device uses wind power to achieve automatic cleaning of the insulator string 400, effectively solving the problem of decreased insulation performance caused by ice and dirt accumulation on the surface of outdoor insulators. The cleaning device 700 includes a U-shaped mounting base 701 fixed to the top of the mounting base 200, and a pulley 705 mounted on the top of the cleaning insulator string 400. A main shaft 702 is rotatably connected through the middle of the U-shaped mounting base 701. A fan blade 703 is provided on the outer side of the top of the main shaft 702. 03 adopts a streamlined design and can utilize natural wind power to generate rotational torque, converting wind energy into mechanical kinetic energy. The bottom of the main shaft 702 is equipped with a pulley 704. The pulley 704 and the second pulley 705 are connected by a belt 706. The belt drive has buffering and shock absorption characteristics, which can avoid the impact of instantaneous strong winds on the mechanical structure. The bottom of the second pulley 705 is fixedly installed with a wheel 707. A cleaning rod 708 is set on the outside of the wheel 707. The bottom of the cleaning rod 708 is equipped with a cleaning brush. The cleaning brush is made of nylon. Nylon material has both wear resistance and elasticity, which can effectively remove stubborn stains without damaging the glaze of the insulator.
[0026] In practical use, when encountering strong winds, the wind force first acts on the three-bladed propeller-type fan blade 703 at the top of the main shaft 702. Through aerodynamic optimization design, the fan blade 703 can start rotating even in high winds, forming a stable power input. During the rotation of the main shaft 702, the pulley 704 connected to its bottom rotates synchronously, and through the belt 706, it forms a transmission with the pulley 705, driving the pulley 705 to rotate. The rotation of the pulley 705 drives the rotating wheel 707 to rotate, and the cleaning rods 708 evenly distributed around the outer circumference of the rotating wheel 707 rotate, so that the cleaning brush embedded at the bottom comes into contact with the surface of the insulator string 400. The brush adopts a double-layer wave-shaped arrangement structure. The outer layer of hard bristles is used to break up thick ice and stubborn deposits, and the inner layer of soft bristles is used to achieve the arc contour of the insulator surface. The line-contact fine cleaning system, with the continuous rotation of the 707 rotating wheel, performs a 360-degree thorough cleaning of the insulator string surface, achieving a very high coverage rate in a single cleaning cycle. This cleaning device can adaptively start in strong winds, requiring no external energy input and utilizing natural wind power to complete the cleaning operation. This reduces the cost of manual inspection and cleaning each year. The double-layer brush structure design improves cleaning efficiency, effectively removing ice, dust particles, and bird droppings. After cleaning, the salt density value of the insulator surface is reduced, and the surface resistance is increased, significantly reducing the risk of flashover accidents and extending the service life. In non-working conditions, the brushes maintain a safe distance from the insulators to avoid unnecessary wear during daily operation, ensuring long-term reliable operation of the equipment.
[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A support device for supporting insulators of energized transmission lines, comprising a tower body, characterized in that, An mounting base is fixedly installed on the upper side of the tower body. An insulator string is installed through and through the left side of the mounting base. A fixing base is fixedly installed on the lower side of the tower body. An alarm device is assembled on the right side of the fixing base. The alarm device includes a fixing rod fixedly installed on the right side of the fixing base. A rotating cylinder is rotatably connected to the right side of the fixing rod. A torsion spring is fixedly installed on the left side of the rotating cylinder. A bell is fixedly installed on the right side of the rotating cylinder. A connecting shaft is rotatably installed on the right side of the connecting shaft. A hollow ring is fixedly installed on the right side of the connecting shaft. A hydraulic chamber I is installed through and through the hollow ring. A hydraulic rod I is slidably connected to a piston at one end of the hydraulic chamber I. A hydraulic rod II is slidably connected to a piston at the other end of the hydraulic chamber I. A limit rod is fixedly installed on the left side of the hydraulic rod II. A push plate is slidably installed on the inner wall of the hollow ring. A spring I is fixedly installed on the left side of the push plate.
2. A support device for supporting insulators of live transmission lines according to claim 1, characterized in that, The surface of the rotating drum is provided with a groove, and the limiting rod cooperates with the groove.
3. A support device for supporting insulators of live transmission lines according to claim 1, characterized in that, The insulator string includes a string rod and insulators mounted on the string rod, with the insulators arranged in a series and running through the string rod.
4. A support device for supporting insulators of energized transmission lines according to claim 1, characterized in that, The hollow ring has a groove in the middle, and the groove slides in conjunction with the push plate.
5. A support device for supporting insulators of live transmission lines according to claim 1, characterized in that, The bottom of the mounting base is equipped with a recording device for recording the degree of swaying of the insulator string.
6. A support device for supporting insulators of energized transmission lines according to claim 5, characterized in that, The recording device includes a mounting plate fixedly installed at the bottom of a fixed base, and a hydraulic chamber two that penetrates and is fixedly installed in a hollow ring. An L-shaped mounting plate is fixedly installed on the surface of the mounting plate. A spring two is fixedly installed on the left side of the L-shaped mounting plate. A recording rod is fixedly installed on the left side of the spring two. A hydraulic rod three is slidably connected to a piston at one end inside the hydraulic chamber two. A hydraulic rod four is slidably connected to a piston at the other end inside the hydraulic chamber two. A connecting block is fixedly installed at the bottom of the hydraulic rod four. A limit block is fixedly installed at the bottom of the connecting block.
7. A support device for supporting insulators of energized transmission lines according to claim 6, characterized in that, The springs and the recording rod are mounted in a row on the L-shaped mounting plate, and the recording rod is slidably connected to the surface of the L-shaped mounting plate.
8. A support device for supporting insulators of live transmission lines according to claim 1, characterized in that, The top of the mounting base is equipped with a cleaning device for rotating and cleaning the insulator string.
9. A support device for supporting insulators of energized transmission lines according to claim 8, characterized in that, The cleaning device includes a U-shaped mounting base on the top of a fixed mounting base and a second pulley mounted on the top of the cleaning insulator string. A main shaft is rotatably connected through the middle of the U-shaped mounting base. A fan blade is provided on the outer side of the top of the main shaft. A first pulley is mounted on the bottom of the main shaft. The first pulley and the second pulley are connected by a belt drive. A rotating wheel is fixedly installed on the bottom of the second pulley, and a cleaning rod is provided on the outer side of the rotating wheel.
10. A support device for supporting insulators of live transmission lines according to claim 9, characterized in that, The bottom of the cleaning rod is equipped with a cleaning brush, which is made of nylon.