Composite post insulator capable of live working and use method thereof

Abstract

The invention discloses a composite post insulator capable of live working and a use method, belongs to the field of electric power facilities, and solves the problem that an insulator in the prior art is inconvenient to replace. The wiring piece comprises a first clamping body, a second clamping body and a driving rod, the first clamping body and the second clamping body are hinged through a hinge shaft, the first clamping body and the second clamping body have a closed position and an open position, the driving rod is rotationally connected with the first clamping body, and the second clamping body is provided with a threaded hole. The driving rod comprises a middle polished shaft section, a first threaded section and a second threaded section, the first threaded section and the second threaded section are located at the two ends of the polished shaft section, when the first clamp body and the second clamp body are located at the closed position, the first threaded section is in threaded fit with the threaded hole, and when the first clamp body and the second clamp body are located at the open position, the second threaded section is in threaded fit with the threaded hole. When the first clamp body and the second clamp body move between the closed position and the open position, the optical axis section penetrates through the threaded hole in a sliding mode. According to the invention, the insulator is more convenient to replace.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power facilities, in particular to a composite support insulator capable of live working and a use method thereof. BACKGROUND

[0002] In the prior art, insulators and wires are usually connected by binding wires. During the operation of overhead lines in distribution networks, the environment is complex, and the wires are affected by weather conditions such as wind, ice, and temperature all year round and are subjected to the action of voltage and current. The binding wires are prone to corrosion, aging, or loosening, which causes the wires to fall on the cross arms or hang in the air, resulting in serious electrical safety hazards and operational risks. Of course, there is a composite support insulator capable of live working disclosed in the utility model patent CN218631508U, which forms a clamping structure by pressing the cover assembly and the hardware main body to clamp the wire, and adjusts the movement of the cover assembly relative to the hardware main body by a screw rod to realize the pressing and loosening of the wire. The screw rod adopts a continuous thread design, and the opening and closing distance between the cover assembly and the hardware main body is large. To realize complete clamping or loosening, continuous multiple rotations of the screw rod by an insulating operating rod are required to complete the opening and closing actions. Moreover, under live working conditions, the operator cannot directly contact the equipment and must operate remotely through an insulating operating rod. The insulator is suspended on the wire and is prone to shaking due to wind force or operation disturbance, which causes unstable connection of the screw rod and the tool, and continuous multiple rotations are prone to slipping and tripping, making the operation difficult and time-consuming. SUMMARY

[0003] The present application aims to provide a composite support insulator capable of live working, which solves the problem of inconvenient replacement of the insulator in the prior art and makes the replacement of the insulator more convenient.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a composite support insulator capable of live working, comprising an insulator body and a wire connecting piece for clamping a live wire, the wire connecting piece comprising a first clamping body and a second clamping body hingedly connected to each other through a hinge shaft and a drive rod for driving the relative movement of the first clamping body and the second clamping body, the first clamping body and the second clamping body having a closed position and an open position, the drive rod being rotationally connected to the first clamping body, the second clamping body being provided with a threaded hole, the drive rod comprising a light shaft segment in the middle and first and second threaded segments at both ends of the light shaft segment, when the first clamping body and the second clamping body are in the closed position, the first threaded segment is threadedly matched with the threaded hole, when the first clamping body and the second clamping body are in the open position, the second threaded segment is threadedly matched with the threaded hole, and when the first clamping body and the second clamping body move between the closed position and the open position, the light shaft segment can slide through the threaded hole.

[0005] The application has the following advantages: when the first clamping body and the second clamping body are switched between the closed position and the open position, the optical axis segment can slide through the threaded hole without being screwed in, and only a few turns are needed to complete the opening and closing action, which greatly reduces the number of turns, shortens the operation stroke, greatly improves the efficiency of live-line work at high altitudes, the closed position is locked by the threaded connection of the first threaded segment and the threaded hole, and the open position is fixed by the threaded connection of the second threaded segment, and the two working states are clearly mechanically limited by the threaded structure, so that the connecting piece can be reliably locked in the running and maintenance states, and accidental movement caused by wind vibration or external force interference is effectively reduced; at the same time, the operator can determine whether the clamping or loosening has reached the position through the change in hand feeling or sudden change in resistance during rotation, so as to realize accurate positioning and further ensure the reliability of the connection and the safety of the operation.

[0006] Further, the connecting piece further comprises an anti-loosening structure for keeping the first clamping body and the second clamping body in the closed position or the open position.

[0007] By adopting the foregoing technical solution, the anti-loosening structure can effectively prevent the first clamping body and the second clamping body from loosening or accidentally opening and closing under long-term operation or external disturbance, thereby significantly improving the operation reliability and safety of the equipment.

[0008] Further, the anti-loosening structure comprises a spring arranged on the driving rod and located between the first clamping body and the second clamping body, when the first clamping body and the second clamping body are in the closed position, the spring is in a natural state, and when the first clamping body and the second clamping body move from the closed position to the open position, the spring is in an elastic deformation state.

[0009] By adopting the foregoing technical solution, when the connecting piece is in the closed position, i.e. in the normal running state, the spring is in a natural state and does not bear stress, thereby avoiding material fatigue, stress relaxation or elastic attenuation caused by long-term stress, effectively prolonging the service life of the spring, and secondly, when the first clamping body and the second clamping body move from the closed position to the open position, the spring is elastically deformed to form a continuous reverse resistance, effectively preventing the first clamping body and the second clamping body from being opened by themselves without external force operation, thereby preventing accidental opening and closing caused by vibration, wind sway or accidental touching as much as possible, and improving the locking stability and safety of the connecting piece in the running state.

[0010] Further, the anti-loosening structure comprises a torsional spring arranged on the hinge shaft and abutting against the first clamping body and the second clamping body at both ends, when the first clamping body and the second clamping body are in the closed position, the torsional spring is in a natural state, and when the first clamping body and the second clamping body move from the closed position to the open position, the torsional spring is in an elastic deformation state.

[0011] The technical scheme is adopted, when the connecting piece is in the closed position, i.e. in the normal operating state, the torsional spring is in a natural state and does not bear stress, avoiding material fatigue, stress relaxation or elastic attenuation caused by long-term stress, effectively prolonging the service life of the elastic element, and secondly, when the first clamping body and the second clamping body move from the closed position to the open position, the torsional spring is elastically deformed to form a sustained reverse resistance, effectively preventing the first clamping body and the second clamping body from being opened automatically without external force, thereby preventing the accidental opening caused by vibration, wind sway or accidental touch as much as possible, and improving the locking stability and safety of the connecting piece in the operating state.

[0012] Further, the anti-loose structure comprises a stop gap provided on the driving rod, a limiting block slidingly provided on the first clamping body, a push rod, and an elastic member for applying a pushing force to the limiting block in the direction of the stop gap, one end of the push rod abuts against the limiting block, and the other end of the push rod abuts against the spring, when the first clamping body and the second clamping body are in the closed position, the elastic force of the spring is smaller than the elastic force of the elastic member, the limiting block enters the stop gap to limit the movement of the driving rod, and when the first clamping body and the second clamping body are in the open position, the elastic force of the spring is greater than the elastic force of the elastic member, and the push rod pushes the limiting block out of the stop gap.

[0013] Through the above technical scheme, when the first clamping body and the second clamping body are in the closed position, i.e. in the long-term operating state of the live working composite support insulator, the limiting block is automatically embedded in the stop gap of the driving rod under the action of the corresponding elastic member, forming a mechanical rigid limiting, effectively preventing the driving rod from being displaced due to vibration or external force, and achieving reliable anti-loose; at this time, the spring connected by the push rod is in a natural or low-stress state and does not participate in locking, avoiding fatigue caused by long-term stress. When the first clamping body and the second clamping body need to be opened, the spring is in a deformed state, the elastic force of the spring is greater than the elastic force of the limiting block reset elastic member, and the limiting block can be actively pushed out of the stop gap by the push rod to overcome the resistance of the elastic member, achieving automatic unlocking. At this time, the user does not need to additionally exert a large force to overcome the resistance of the anti-loose elastic member, significantly reducing the unlocking operation force, thereby realizing self-locking during operation and labor-saving convenience during operation by utilizing the difference in spring elastic force and the action timing, and being particularly suitable for live working scenes that need to be operated stably for a long time and frequently maintained, and balancing safety and operation friendliness.

[0014] Further, the anti-loose structure comprises a stop hole provided on the second clamping body, a stop groove provided on the first threaded segment and the second threaded segment, a limiting pin located in the stop hole and axially movable, and an elastic member for applying an axial pre-pressure to the limiting pin, when the first clamping body and the second clamping body are in the closed position or the open position, the limiting pin extends into the stop groove of the first threaded segment or the second threaded segment under the action of the elastic member to limit the rotation of the driving rod.

[0015] Through the technical scheme, when the first clamping body and the second clamping body move to the closed position or the open position, the limiting pin is automatically embedded in the corresponding stop groove under the pre-pressing force of the elastic member without additional operation, rigid limiting of the rotation of the driving rod is achieved, thread loosening caused by vibration, wind blowing and the like is prevented as much as possible, and locking stability and safety of the wiring member in the running state are ensured.

[0016] Further, the length of the first threaded segment is greater than the length of the second threaded segment.

[0017] Through the technical scheme, in the normal live working state, the wiring member is long-term in the closed position and needs to bear long-term loads such as wire self weight, wind load, vibration, and the like, and the connection reliability is required to be high; and the open position is only used temporarily when the equipment is overhauled or installed, the use frequency is low, and the time is short, the first threaded segment corresponding to the closed position is designed to be longer, the rotation length with the threaded hole is increased, the connection strength and the anti-loosening ability are improved, the self-loosening phenomenon caused by vibration in long-term operation is effectively prevented, meanwhile, the longer threaded segment also increases the difficulty of accidental unlocking under abnormal operation, and the operation safety is improved. The second threaded segment only needs to meet the temporary positioning function of the open position, and does not need to be too long, and the overall axial size is appropriately shortened, and installation operation is facilitated.

[0018] Further, the first clamping body and the second clamping body take the hinge shaft as a fulcrum, one side of which forms a power arm for transmitting operating force, and the other side of which forms a resistance arm for clamping the live wire, the power arm of the second clamping body is bent upward relative to the resistance arm, the power arm of the first clamping body is bent upward relative to the resistance arm, and the driving rod is arranged horizontally.

[0019] Through the technical scheme, since the openings of the first clamping body and the second clamping body are also in the horizontal direction, when the driving rod is operated, the live wire moves away from the opening side, that is, always abuts against the first clamping body and the second clamping body, and is not easy to fall off.

[0020] Further, the wiring member and the insulator body are detachably connected through a threaded fastener or a buckle structure.

[0021] By the technical scheme, when the wiring member or the insulator body needs to be replaced or overhauled, the whole device does not need to be replaced, and the two can be quickly separated only by disassembling the fastener or releasing the buckle, which greatly reduces the operation and maintenance cost and material waste; especially when only the insulator body needs to be replaced, the wiring member can be reserved on the live wire as a whole, and only the insulator body is disassembled and replaced, thereby avoiding the operation of repeatedly disassembling and assembling the wiring member on the live wire, effectively solving the problems of difficult alignment and unstable installation caused by the swing of the insulator suspension state, and significantly improving the stability and safety of the live working at high altitude, while reducing the repeated clamping damage to the wire, improving the operation efficiency and equipment reliability.

[0022] Another object of the present application is to disclose a live working composite post insulator use method, characterized in that the live working composite post insulator use method comprises the live working composite post insulator according to any one of the preceding technical schemes, and the live working composite post insulator use method comprises S1: setting an insulating shield on a live wire;

[0023] S2: disassembling an old insulator;

[0024] S3: operating the driving rod to make the second threaded segment threadedly engage with the threaded hole, the first clamping body and the second clamping body are in an open position, and the live wire is clamped into the first clamping body and the second clamping body;

[0025] S4: operating the driving rod through the insulating operating rod to make the first threaded segment threadedly engage with the threaded hole, and the first clamping body and the second clamping body are in a closed position.

[0026] By the technical scheme, by setting the insulating shield on the live wire, the operation area is effectively isolated, and the safety of the operator is ensured; during the replacement process, the connection between the wiring member and the wire does not need to be repeatedly disassembled and assembled, only the wiring member of the new insulator is pre-opened and clamped into the live wire, and then the first threaded segment is driven into the threaded hole through the insulating operating rod, so that the first clamping body and the second clamping body are closed and locked, and the whole process avoids the repeated clamping and positioning of the wire in the live high-altitude environment, significantly reduces the alignment difficulty and installation risk caused by the swing of the insulator, and improves the connection reliability.

[0027] Another object of the present application is to disclose a live working composite post insulator use method, characterized in that the live working composite post insulator use method comprises the live working composite post insulator according to any one of the preceding technical schemes, and the live working composite post insulator use method comprises S1: an operator wearing insulating gloves sets an insulating shield on a live wire;

[0028] S2: dismounting the old insulator;

[0029] S3: operating the driving rod to make the second threaded segment threadedly engage with the threaded hole, the first and second clamping bodies are in the open position, and the live wire is clamped into the first and second clamping bodies;

[0030] S4: operating the driving rod by the electric wrench to make the first threaded segment threadedly engage with the threaded hole, the first and second clamping bodies are in the closed position.

[0031] By the above technical solution, the double insulation protection is realized by the operator wearing the insulating gloves and setting the insulating shield on the live wire, and the personal safety of the live working is effectively ensured; during the replacement, the connection of the wiring member and the wire does not need to be repeatedly dismounted and mounted, only the wiring member of the new insulator is pre-adjusted to the open position by the driving rod, the second threaded segment is locked by engaging with the threaded hole, the open state is stably maintained, the live wire is clamped into the first and second clamping bodies, then the first threaded segment is driven by the electric wrench to rotate into the threaded hole, the first and second clamping bodies are quickly closed and locked, the operation time is greatly shortened, and the labor intensity of the high-altitude work is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] The application will be further described below with reference to the drawings:

[0033] Figure 1 Fig. 4 is a structural schematic view of the composite support insulator of the present application in the closed position;

[0034] Figure 2 Fig. 5 is another view of the structural schematic view of the composite support insulator of the present application in the closed position;

[0035] Figure 3 Fig. 6 is a sectional view of part of the structure of the composite support insulator of the present application in the closed position;

[0036] Figure 4 Fig. 7 is a structural schematic view of the composite support insulator of the present application in the open position;

[0037] Figure 5 Fig. 8 is another view of the structural schematic view of the composite support insulator of the present application in the open position;

[0038] Figure 6 Fig. 9 is a sectional view of part of the structure of the composite support insulator of the present application in the open position;

[0039] Figure 7 Fig. 10 is a structural schematic view of the driving rod of the present application;

[0040] Figure 8Structure schematic view of the live working composite pole insulator of other embodiments of the present application in the closed position;

[0041] Figure 9 Structure schematic view of the live working composite pole insulator of other embodiments of the present application in the open position;

[0042] In the figure, 10, insulator body; 20, connecting piece; 21, first clamping body; 211, limiting block; 212, push rod; 213, elastic piece; 214, movable groove; 215, movable channel; 22, second clamping body; 220, threaded hole; 23, driving rod; 231, optical axis segment; 232, first threaded segment; 233, second threaded segment; 234, operating ring; 235, groove; 236, stop gap; 24, hinged shaft; 25, spring; 26, power arm; 27, resistance arm; 28, opening. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0044] The terms "first", "second", "third", "fourth" and the like in the description, claims, and drawings of the present application (if any) are used to distinguish similar objects, not necessarily describing a particular sequential or chronological order. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein.

[0045] It should be understood that, in various embodiments of the present application, the magnitude of the serial numbers as related to the processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0046] It should be understood that in the present application, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0047] It should be understood that in the present application, "a plurality of" means two or more. "And / or" is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, X and / or Y can represent: X alone, X and Y exist at the same time, Y alone. The character " / " generally represents that the associated objects before and after are "or" relationship. "Including X, Y and Z", "including X, Y, Z" means that X, Y, Z three are included, "including X, Y or Z" means that X, Y, Z three are included, "including X, Y and / or Z" means that X, Y, Z three are included any one or any two or three.

[0048] The technical solutions of the present application will be described in detail below with specific examples. The following specific examples can be combined or replaced according to the actual situation, and the same or similar concepts or processes may not be described in some examples.

[0049] Example one:

[0050] As shown in Figures 1 to 7 The present application provides a composite insulator for live working, comprising an insulator body 10 and a terminal 20 for clamping a live wire, the terminal 20 comprising a first clamp body 21 and a second clamp body 22 hingedly connected to each other by a hinge shaft 24 and a driving rod 23 for driving the relative movement of the first clamp body 21 and the second clamp body 22, the first clamp body 21 and the second clamp body 22 having a closed position and an open position, the driving rod 23 being rotationally connected with the first clamp body 21, the second clamp body 22 being provided with a threaded hole 220, the driving rod 23 comprising a central light shaft segment 231 and first and second threaded segments 232 and 233 located at both ends of the light shaft segment 231, when the first clamp body 21 and the second clamp body 22 are in the closed position, the first threaded segment 232 is threadedly engaged with the threaded hole 220, when the first clamp body 21 and the second clamp body 22 are in the open position, the second threaded segment 233 is threadedly engaged with the threaded hole 220, when the first clamp body 21 and the second clamp body 22 move between the closed position and the open position, the light shaft segment 231 slidably passes through the threaded hole 220.

[0051] When the first clamp body 21 and the second clamp body 22 are switched between the closed and open positions, the optical axis segment 231 can slide through the threaded hole 220 without being screwed in, and only a few turns are needed to complete the opening and closing action, greatly reducing the number of turns, shortening the operation stroke, and greatly improving the efficiency of live-line work at high altitude. The closed position is locked by the threaded connection of the first threaded segment 232 and the threaded hole 220, and the open position is fixed by the threaded connection of the second threaded segment 233. Both working states are clearly mechanically limited by the threaded structure, so that the connecting piece 20 can be reliably locked in the running and maintenance states, effectively reducing accidental movements caused by wind vibration or external force interference. At the same time, the operator can determine whether the clamping or loosening has reached the position by the change in hand feeling or the sudden change in resistance during rotation, achieving precise positioning and further ensuring the reliability of the connection and the safety of the operation.

[0052] It should be noted that the first clamp body 21 and the second clamp body 22 are pivoted at the hinge shaft 24, one side of which forms a power arm 26 for transmitting operating force, and the other side forms a resistance arm 27 for clamping live wires. The inner side of the resistance arm 27 is provided with a groove 235 matched with the shape of the wire for stable accommodation and clamping of the wire, reducing contact stress. The power arm 26 of the first clamp body 21 is provided with a through hole, and the power arm 26 of the second clamp body 22 is provided with a threaded hole 220. The drive rod 23 passes through the through hole of the first clamp body 21 in sequence and cooperates with the threaded hole 220 of the second clamp body 22. By rotating the drive rod 23, the second clamp body 22 is driven to rotate relative to the first clamp body 21 around the hinge shaft 24, realizing the opening and closing action. Preferably, the length of the power arm 26 is greater than that of the resistance arm 27, forming a force-saving lever structure, which significantly reduces the required torque for operation, making it more convenient and efficient to drive remotely through an insulated operating rod or a power tool, especially in a live-line work environment at high altitude, which can effectively reduce the operating resistance and improve the stability and safety of the action. The drive rod 23 can be provided with an operating ring 234 for easy hooking with an insulated operating rod to achieve remote control, especially in environments with limited space or poor visibility, which facilitates tool positioning and force application, effectively reducing the difficulty of operation. The diameter of the optical axis segment 231 is smaller than that of the threaded hole 220, so that when the first clamp body 21 and the second clamp body 22 are switched between the closed and open positions, the optical axis segment 231 can slide through the threaded hole 220 without hindrance or with reduced hindrance, without being screwed into the threaded hole 220 or being threadedly connected, thereby significantly reducing the number of turns of the drive rod 23. In the open position, the opening 28 of the first clamp body 21 and the second clamp body 22 can be 35 mm, facilitating the entry or exit of live wires into or out of the groove 235.

[0053] In the embodiment, the power arm 26 of the second clamping body 22 is bent upward relative to the resistance arm 27, and the power arm 26 of the first clamping body 21 is bent upward relative to the resistance arm 27, so that the driving rod 23 is arranged horizontally, that is, arranged radially along the insulator body 10, and the openings 28 of the first clamping body 21 and the second clamping body 22 are also arranged in the horizontal direction. In this way, when the driving rod 23 is operated, the live wire moves away from the opening 28, that is, always abuts against the first clamping body 21 and the second clamping body 22, and is not easy to fall off.

[0054] It should be noted that the driving rod 23, the first clamping body 21 and the second clamping body 22 can be made of aluminum alloy material, which has the advantages of light weight, strong corrosion resistance and the like, is conducive to reducing the overall weight and reducing the burden of high-altitude operation, and meets the requirements of environmental tolerance.

[0055] In the normal live working state, the connecting piece 20 is in the closed position for a long time and needs to bear the long-term load of the weight of the wire, wind load, vibration and the like, and has a high requirement for connection reliability; and the open position is only used temporarily during equipment maintenance or installation, and has a low use frequency and a short use time. Therefore, in the present application, the length of the first threaded section 232 is greater than the length of the second threaded section 233. By designing the first threaded section 232 corresponding to the closed position to be longer, the rotation length of the first threaded section 232 with the threaded hole 220 can be increased, so that the connection strength and the anti-loosening ability are improved, and the self-loosening phenomenon caused by vibration during long-term operation is effectively prevented. At the same time, the longer threaded section also increases the difficulty of accidental unlocking under abnormal operation, and improves the operation safety. The second threaded section 233 only needs to meet the temporary positioning function of the open position, and does not need to be too long. The appropriate shortening can reduce the overall axial size, and facilitate installation and operation.

[0056] The screw directions of the first threaded section 232 and the second threaded section 233 are the same. When the driving rod 23 is operated, it only needs to rotate in a single direction to realize the whole process switching of the first clamping body 21 and the second clamping body 22 from the closed position to the open position or from the open position to the closed position. The operation logic is unified, and repeated forward and reverse rotation is not needed, which significantly improves the convenience and operation efficiency of high-altitude live working.

[0057] Since the connecting piece 20 is easy to loosen or accidentally open under long-term operation or external disturbance, in the present application, the connecting piece 20 further comprises an anti-loosening structure for keeping the first clamping body 21 and the second clamping body 22 in the closed position or the open position, which can prevent the first clamping body 21 and the second clamping body 22 from loosening or accidentally opening under long-term operation or external disturbance as much as possible, and significantly improves the operation reliability and safety of the equipment.

[0058] Specifically, the anti-loosening structure comprises a spring 25 arranged on the driving rod 23 and located between the first clamping body 21 and the second clamping body 22. When the first clamping body 21 and the second clamping body 22 are in the closed position, the spring 25 is in a natural state. When the first clamping body 21 and the second clamping body 22 move from the closed position to the open position, the spring 25 is in an elastic deformation state. When the wiring piece 20 is in the closed position, i.e. in the normal operating state, the spring 25 is in the natural state and does not bear stress, avoiding material fatigue, stress relaxation or elastic attenuation caused by long-term stress, effectively prolonging the service life of the elastic element. Secondly, when the first clamping body 21 and the second clamping body 22 move from the closed position to the open position, the spring 25 is elastically deformed to form a sustained reverse resistance, which as much as possible hinders the first clamping body 21 and the second clamping body 22 from being opened by themselves without external force operation, thereby as much as possible preventing the accidental opening caused by vibration, wind swing or accidental touch, and improving the locking stability and safety of the wiring piece 20 in the operating state.

[0059] Further, the anti-loosening structure further comprises a stop notch 236 arranged on the driving rod 23, a limiting block 211 and a push rod 212 slidingly arranged on the first clamping body 21, and an elastic element 213 for applying a pushing force to the limiting block 211 in the direction of the stop notch 236. One end of the push rod 212 abuts against the limiting block 211, and the other end of the push rod 212 abuts against the spring 25. When the first clamping body 21 and the second clamping body 22 are in the closed position, the elastic force of the spring 25 is smaller than the elastic force of the elastic element 213, the limiting block 211 enters the stop notch 236 to limit the movement of the driving rod 23. When the first clamping body 21 and the second clamping body 22 are in the open position, the elastic force of the spring 25 is greater than the elastic force of the elastic element 213, and the push rod 212 pushes the limiting block 211 out of the stop notch 236.

[0060] When the first clamp body 21 and the second clamp body 22 are in the closed position, i.e. the long-term running state of the live-line composite support insulator, the limiting block 211 is automatically embedded in the stop gap 236 of the driving rod 23 under the action of the corresponding elastic member 213, forming a mechanical rigid limiting, effectively preventing the displacement of the driving rod 23 due to vibration or external force, and realizing reliable anti-loosening; At this time, the spring 25 connected by the push rod 212 is in a natural or low stress state and does not participate in locking, avoiding fatigue caused by long-term stress. When the first clamp body 21 and the second clamp body 22 need to be opened, the spring 25 is in a deformed state, and the elastic force of the spring 25 is greater than the elastic force of the reset elastic member 213 of the limiting block 211. The push rod 212 can actively push the limiting block 211 to overcome the resistance of the elastic member 213 and exit the stop gap 236, realizing automatic unlocking. At this time, the user does not need to additionally exert a large force to overcome the resistance of the anti-loosening elastic member 213, significantly reducing the unlocking operation force, thereby realizing self-locking during operation and labor-saving convenience during operation by utilizing the difference in elastic force of the spring 25 and the action timing, and being particularly suitable for live-line work scenes that need long-term stable operation and frequent maintenance, balancing safety and operation friendliness.

[0061] It should be noted that the first clamp body 21 is also provided with a movable groove 214 and a movable channel 215, the limiting block 211 and the elastic member 213 are arranged in the movable groove 214, the movable channel 215 constrains and guides the sliding direction of the limiting block 211, so that it can only move in a set direction, and as far as possible to prevent deflection or jamming; At the same time, the movable channel 215 provides installation space and compression stroke limiting for the elastic member 213, ensuring its normal extension and contraction. The push rod 212 is slidably arranged in the movable channel 215, limiting its movement trajectory, and as far as possible to ensure that the push rod 212 can smoothly push the limiting block 211 in the predetermined direction.

[0062] In addition, the wiring member 20 and the insulator body 10 are detachably connected through threaded fasteners. When the wiring member 20 or the insulator body 10 needs to be replaced or maintained, the entire device does not need to be replaced as a whole, and only the fasteners need to be removed to quickly separate the two, greatly reducing the operation and maintenance cost and material waste; Especially when only the insulator body 10 needs to be replaced, the wiring member 20 can be retained together with the conductor as a whole on the live conductor, and only the insulator body 10 is removed for replacement, avoiding repeated disassembly and assembly of the wiring member 20 on the live conductor, effectively solving the problems of difficult alignment and unstable installation caused by the swinging of the insulator hanging state, significantly improving the stability and safety of high-altitude live-line work, while reducing the repeated clamping damage to the conductor, improving the operation efficiency and equipment reliability.

[0063] Specifically, a metal insert with a mounting hole is arranged at the top of the insulator body 10, and the metal insert is pre-buried in the insulator body 10 along the axial direction; the bottom of the connecting piece 20 is provided with a mounting flange, and a through hole corresponding to the position of the metal insert is formed in the mounting flange; during assembly, the mounting flange of the connecting piece 20 is aligned with the top of the insulator body 10, a bolt is passed through the through hole in the mounting flange of the connecting piece 20 and screwed into the threaded hole 220 of the metal insert, and the connecting piece 20 is firmly fixed on the insulator body 10 by tightening the bolt; during disassembly, only the bolt needs to be unscrewed, and then the connecting piece 20 can be taken down as a whole, achieving quick separation.

[0064] As shown in Figure 8 and Figure 9 It can be understood that in other embodiments, in the present embodiment, the power arm 26 and the resistance arm 27 of the second clamping body 22 are arranged in a straight line, and the power arm 26 and the resistance arm 27 of the first clamping body 21 tend to be arranged in a straight line, so that the driving rod 23 is inclinedly arranged, and the operator can operate from bottom to top.

[0065] It can be understood that in other embodiments, the anti-loosening structure includes a torsional spring arranged on the hinge shaft and abutting against the first clamping body and the second clamping body at both ends, and when the first clamping body and the second clamping body are in the closed position, the torsional spring is in a natural state, and when the first clamping body and the second clamping body move from the closed position to the open position, the torsional spring is in an elastic deformation state. When the connecting piece is in the closed position, i.e. in the normal running state, the torsional spring is in the natural state and does not bear stress, which can as far as possible avoid material fatigue, stress relaxation or elastic attenuation caused by long-term stress, effectively prolonging the service life of the elastic element, and secondly, when the first clamping body and the second clamping body move from the closed position to the open position, the torsional spring is elastically deformed to form a continuous reverse resistance, effectively preventing the first clamping body and the second clamping body from being opened by themselves without external force, thereby as far as possible preventing the accidental opening caused by vibration, wind sway or accidental touch, and improving the locking stability and safety of the connecting piece in the running state.

[0066] It can be understood that, in other embodiments, the connecting piece and the insulator body are detachably connected through a buckle structure. When the connecting piece or the insulator body needs to be replaced or overhauled, the entire device does not need to be replaced as a whole, and the two can be quickly separated only by releasing the buckle, which greatly reduces the operation and maintenance cost and material waste; especially when only the insulator body needs to be replaced, the connecting piece can be retained on the live conductor as a whole, and only the insulator body is removed and replaced, thereby avoiding repeated disassembly and assembly of the connecting piece on the live conductor, effectively solving the problems of difficult alignment and unstable installation caused by the swinging of the insulator hanging state, and significantly improving the stability and safety of live working at high altitude, while reducing the repeated clamping damage to the conductor, improving the operation efficiency and equipment reliability. Specifically, the insulator body is provided with an outer flange, and the connecting piece is provided with a swing buckle with a locking tongue, and the locking tongue is locked under the flange by pressing the buckle.

[0067] Embodiment two:

[0068] In this embodiment, a live working composite post insulator use method is disclosed, characterized in that the live working composite post insulator comprises any one of the technical solutions described above, and the live working composite post insulator use method comprises the following steps:

[0069] S2: disassemble the old insulator;

[0070] S3: operate the driving rod to make the second threaded segment threadedly engage with the threaded hole, the first clamping body and the second clamping body are in an open position, and the live conductor is clamped into the first clamping body and the second clamping body;

[0071] S4: operate the driving rod through the insulating operating rod to make the first threaded segment threadedly engage with the threaded hole, and the first clamping body and the second clamping body are in a closed position.

[0072] Through the above technical solution, by setting an insulating shield on the live conductor, the operation area is effectively isolated, and the safety of the operator is ensured; during replacement, the connection between the connecting piece and the conductor does not need to be repeatedly disassembled and assembled, and only the connecting piece of the new insulator needs to be pre-opened and clamped into the live conductor, and then the first threaded segment is driven into the threaded hole through the insulating operating rod, to realize the closing and locking of the first clamping body and the second clamping body. The whole process avoids repeated clamping and positioning of the conductor in a live high-altitude environment, significantly reduces the difficulty of alignment and installation risk caused by the swinging of the insulator, and improves the connection reliability.

[0073] Embodiment three:

[0074] The embodiment discloses a live working composite support post insulator using method, and has the characteristics that the live working composite support post insulator using method comprises the live working composite support post insulator of any one of the technical solutions, and the live working composite support post insulator using method comprises the following steps: S1, an operator wears an insulating glove, and sets an insulating shield on a live wire;

[0075] S2, old insulators are disassembled;

[0076] S3, a driving rod is operated, the second threaded segment is screwed with the threaded hole, the first clamping body and the second clamping body are in an open position, and the live wire is clamped into the first clamping body and the second clamping body;

[0077] S4, the driving rod is operated by using an electric wrench, the first threaded segment is screwed with the threaded hole, and the first clamping body and the second clamping body are in a closed position.

[0078] Through the above technical solutions, the operator wears an insulating glove and sets an insulating shield on the live wire, double insulation protection is realized, and the personal safety of near-live operation is effectively ensured; during replacement, the connection between the wiring member and the wire does not need to be repeatedly disassembled and assembled, the wiring member of the new insulator only needs to be pre-adjusted to the open position by using the driving rod, the second threaded segment is locked by being screwed with the threaded hole, the open state is stably maintained, the live wire is clamped into the first clamping body and the second clamping body, then the first threaded segment is screwed into the threaded hole by using the electric wrench, the first clamping body and the second clamping body are quickly closed and locked, the operation time is greatly shortened, and the labor intensity of high-altitude operation is reduced.

[0079] The electric wrench is used for quick fastening, the insulator and the live wire can be fastened within 15 seconds, at least 1 minute is needed when the binding wire is used for binding, the personal safety distance is insufficient due to the length of the binding wire, the binding quality is uneven due to the maintenance process, and electrostatic induction is caused due to the material of the binding wire.

[0080] In addition to the preferred embodiments, the application has other embodiments, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the application belong to the scope of the application.

Claims

1. A live-line composite post insulator comprising an insulator body and a terminal for clamping a live conductor, characterized in that The connecting piece comprises a first clamping body and a second clamping body hingedly connected to each other through a hinge shaft, and a driving rod for driving the relative movement of the first clamping body and the second clamping body, the first clamping body and the second clamping body have a closed position and an open position, the driving rod is rotationally connected with the first clamping body, the second clamping body is provided with a threaded hole, the driving rod comprises a middle light axis segment and first and second threaded segments located at both ends of the light axis segment, when the first clamping body and the second clamping body are in the closed position, the first threaded segment is threadedly connected with the threaded hole, when the first clamping body and the second clamping body are in the open position, the second threaded segment is threadedly connected with the threaded hole, and when the first clamping body and the second clamping body move between the closed position and the open position, the light axis segment can slide through the threaded hole.

2. The chargeable composite post insulator of claim 1, wherein, The connecting piece further comprises an anti-loosening structure for keeping the first clamping body and the second clamping body in the closed position or the open position.

3. The chargeable composite post insulator of claim 2, wherein, The anti-loosening structure comprises a spring arranged on the driving rod and located between the first clamping body and the second clamping body, when the first clamping body and the second clamping body are in the closed position, the spring is in a natural state, and when the first clamping body and the second clamping body move from the closed position to the open position, the spring is in an elastically deformed state.

4. The chargeable composite post insulator of claim 2, wherein, The anti-loosening structure comprises a torsion spring arranged on the hinge shaft and abutting against the first clamping body and the second clamping body at both ends, when the first clamping body and the second clamping body are in the closed position, the torsion spring is in a natural state, and when the first clamping body and the second clamping body move from the closed position to the open position, the torsion spring is in an elastically deformed state.

5. The chargeable composite post insulator of claim 3, wherein, The anti-loosening structure comprises a stop gap arranged on the driving rod, a limiting block slidingly arranged on the first clamping body, a push rod, and an elastic member for applying a pushing force to the limiting block in the direction of the stop gap, one end of the push rod abuts against the limiting block, and the other end of the push rod abuts against the spring, when the first clamping body and the second clamping body are in the closed position, the elastic force of the spring is smaller than the elastic force of the elastic member, the limiting block enters the stop gap to limit the movement of the driving rod, when the first clamping body and the second clamping body are in the open position, the elastic force of the spring is greater than the elastic force of the elastic member, and the push rod pushes the limiting block out of the stop gap.

6. The chargeable composite post insulator of claim 1, wherein, The length of the first threaded segment is greater than the length of the second threaded segment.

7. The chargeable composite post insulator of claim 1, wherein, The first clamping body and the second clamping body are pivotally connected at the hinge shaft, one side of the first clamping body and the second clamping body forms a power arm for transmitting operating force, and the other side forms a resistance arm for clamping the live wire, the power arm of the second clamping body is upwardly bent relative to the resistance arm, the power arm of the first clamping body is upwardly bent relative to the resistance arm, and the driving rod is horizontally arranged.

8. The chargeable composite post insulator of claim 1, wherein, The connecting piece is detachably connected with the insulator body through a threaded fastener or a buckle structure.

9. A method of using an ECP composite post insulator, characterized in that, The method for using the live-line composite post insulator comprises S1: arranging an insulating shield on the live wire; S2: disassembling the old insulator; S3: operating the driving rod to make the second threaded segment threadedly connect with the threaded hole, the first clamping body and the second clamping body are in the open position, and the live wire is clamped into the first clamping body and the second clamping body; S4: driving the driving rod by the insulating operating rod to make the first threaded section threadedly engage with the threaded hole, and the first clamp body and the second clamp body are in the closed position.

10. A method of using an ECP composite post insulator, characterized in that, The live-line composite pole insulator of any one of claims 1 to 8, and a method of using the live-line composite pole insulator, the method comprising: S1: an operator wearing insulating gloves sets up an insulating shield on a live wire; S2: disassembling an old insulator; S3: operating the driving rod to make the second threaded section threadedly engage with the threaded hole, and the first clamp body and the second clamp body are in the open position, and the live wire is clamped into the first clamp body and the second clamp body; S4: driving the driving rod by the electric wrench to make the first threaded section threadedly engage with the threaded hole, and the first clamp body and the second clamp body are in the closed position.

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