Column type porcelain insulator capable of live working

Abstract

The utility model provides a column-type porcelain insulator capable of live working, the column-type porcelain insulator comprises a column-type porcelain piece and a fixing piece which are connected end to end from top to bottom, a cable groove is formed in the top surface of the column-type porcelain piece, the column-type porcelain insulator further comprises a clamping piece, a spring locking piece and a wire hanging piece, through the design of the spring locking piece, the wire hanging piece can be clamped in the cable groove, and the wire hanging piece can be clamped in the cable groove. Rapid clamping and loosening of the wire are realized, the labor intensity of operators is reduced, and the working efficiency is improved. The design of the wire hanging piece enables a wire to smoothly pass in the wire hanging process, friction force during wire hanging is reduced, wire damage is avoided, meanwhile, wire hanging convenience and safety are improved, the elastic structure enables the wire hanging piece to automatically protrude in the unlocked state, the wire can be rapidly hung in, and the wire hanging efficiency is improved. And the wire can be automatically pressed back in a locking state, so that the stable fixation of the wire is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of power transmission and insulation equipment, and specifically relates to a live-operation column-type porcelain insulator. Background Art

[0002] Traditional column-type porcelain insulators are mainly used to support and secure cables or conductors. During power inspection, maintenance, and line hanging operations, live work is often required. Traditional column-type porcelain insulators often use bundling to secure conductors, a cumbersome process that often poses safety hazards and can easily lead to electric shock accidents. Traditional line hanging often requires a wire hanging pulley as an auxiliary device. The wire ends are passed through the pulley, and then other traction devices are used to pull the wire to the appropriate length. After using the wire hanging pulley, the person pedals the rod to laboriously lift the wire into the insulator groove, and then removes the pulley. This frequent operation increases the workload of construction workers.

[0003] The applicant's prior art 202221576351.3 provides a composite post insulator capable of live operation, comprising a post body, a wire clamping mechanism disposed on the upper portion of the post body, and a steel leg structure disposed on the lower portion of the post body. The wire clamping mechanism comprises a hardware body, a gland assembly disposed on the hardware body, and a drive assembly that drives the gland assembly to move relative to the hardware body. The composite post insulator capable of live operation of the utility model forms a clamping structure with the gland assembly and the hardware body to clamp the conductor, and the drive assembly adjusts the movement of the gland assembly relative to the hardware body to achieve compression and release of the conductor.

[0004] During the actual operation of the above-mentioned insulators, the displacement between the gland assembly and the hardware body is performed through the threads on the screw rod, resulting in a large friction force. This causes the drive assembly to require a large force when adjusting the gland assembly. When using a long insulating rod for opening and closing operations, the operator needs to apply greater force to complete the adjustment, which increases the difficulty and labor intensity of the operation. In addition, when performing the gland opening and closing operation through the threads on the screw rod, it is often necessary to rotate many turns to complete a clamping or loosening action. Especially in the actual operation process, there are often multiple insulators, and the operation efficiency is low. In addition, when the above-mentioned insulators are used for hanging wire operations, they need to use external hanging wire parts to assist the operation. These shortcomings have affected the operation efficiency. Utility Model Content

[0005] In order to solve the above problems, the present application provides a post-type porcelain insulator capable of live operation. The technical solution of the present application is as follows: a post-type porcelain insulator capable of live operation, the post-type porcelain insulator comprising a post-type porcelain component and a fixing component connected end to end from top to bottom, a cable groove being formed on the top surface of the post-type porcelain component, and the post-type porcelain insulator further comprising:

[0006] The clamping member includes a movable arm, and a hinged member is provided in the middle of the movable arm. One end of the hinged member is fixedly connected to the columnar porcelain member, and the other end is hinged to the movable arm. The two sides of the hinged member are respectively a clamping side and an operating side for opening and closing the clamping side. The clamping side is arranged opposite to the cable groove to form a wire clamping space, and an insulating rod connecting portion is formed on the operating side;

[0007] Spring locking member: One end of the spring locking member is fixedly connected to the operating side of the movable arm, and the other end is fixedly connected to the columnar porcelain member. The spring locking member locks the wire clamping space after the wire is placed in the wire clamping space;

[0008] The wire hanging member is arranged on the inner wall of the cable trough, and the wire hanging member includes a roller or a plurality of balls. The roller is embedded in the inner wall of the center position of the cable trough and partially exposed from the inner wall of the cable trough. The rolling direction of the roller is consistent with the extension direction of the wire in the cable trough; the plurality of balls are evenly arranged on the inner wall of the cable trough.

[0009] Furthermore, the wire hanging piece is connected to the cable trough through an elastic structure, and the elastic structure enables the wire hanging piece to protrude from the inner wall of the cable trough when the wire is placed in the wire clamping space and is not locked by the locking piece. When the locking piece locks the wire clamping space, the wire hanging piece is pressed back to the inner wall of the cable trough.

[0010] Furthermore, when the wire hanging member is a roller, the elastic structure and the roller are arranged in an installation space opened in the cable groove, and the installation space includes two first installation spaces and a second installation space located in the two first installation spaces, the two first installation spaces include a top wall, a bottom wall and a side wall, and the second space includes an open top wall and a bottom wall, the elastic structure includes a rotating shaft passing through the axis of the roller, a first spring and a second spring supporting the rotating shaft, the two ends of the rotating shaft are against the top walls of the two first installation spaces, one end of the first spring and the second spring are respectively fixedly connected to the two ends of the rotating shaft, and the other end of the first spring and the second spring are respectively against the bottom walls of the two installation spaces, and the roller moves up and down in the second installation space to protrude or retract the top wall of the opening of the second installation space.

[0011] Furthermore, the elastic structure also includes a first limiting rod and a second limiting rod, the first limiting rod passes through one end of the rotating shaft and the first spring in sequence, and the two ends of the first limiting rod are respectively inserted into the top wall and bottom wall of the first installation space, the second limiting rod passes through the other end of the rotating shaft and the second spring in sequence, and the two ends of the second limiting rod are respectively inserted into the top wall and bottom wall of the second installation space.

[0012] Furthermore, when the wire hanging member is a plurality of balls, the cable groove is provided with a plurality of holes with an opening diameter smaller than the diameter of the balls, and the plurality of balls are installed in the holes. The elastic structure includes a plurality of elastic elements, one end of the elastic element is fixed on the inner wall of the cable groove, and the other end is against the balls, so that the balls protrude from the inner wall of the cable groove when not locked by the locking member, and when the locking member locks the wire clamping space, the balls are pressed back to the inner wall of the cable groove.

[0013] Furthermore, the insulating rod connecting portion is a hook provided on the operating side of the movable arm, one end of the hook is fixedly connected to the operating side of the movable arm, and the other end is an open structure.

[0014] Furthermore, the clamping side of the movable arm is provided with an arc-shaped clamping groove for clamping the wire opposite to the cable groove, and the arc-shaped clamping groove and the cable groove are combined to form the wire clamping space.

[0015] Furthermore, the fixing part is a steel foot, which includes a steel foot column perpendicular to the columnar porcelain piece, one end of the steel foot column is fixedly connected to the bottom surface of the columnar porcelain piece, and the steel foot column is provided with a thread.

[0016] Furthermore, the clamping side sleeve of the movable arm is provided with rubber.

[0017] The beneficial technical effects of this application are:

[0018] 1. The spring locking design enables quick clamping and release of the wire, reducing the operator's labor intensity and improving work efficiency.

[0019] 2. The design of the wire hanger allows the wire to pass smoothly during the hanging process, eliminating the need for external pulleys. This reduces friction during hanging, prevents wire damage, and improves the convenience and safety of hanging. The use of an elastic structure allows the wire hanger to automatically extend when unlocked, facilitating the quick insertion of the wire, and automatically press back when locked, ensuring the stable fixation of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1: A schematic structural diagram of the post-type porcelain insulator capable of live operation according to the present application;

[0021] Figure 2 : A schematic diagram of a specific embodiment of a post-type porcelain insulator capable of live operation according to the present application;

[0022] Figure 3 : A schematic diagram of a specific embodiment of a post-type porcelain insulator capable of live operation according to the present application;

[0023] Figure 4 : A schematic diagram of the roller type wire hanging member of the present application;

[0024] Figure 5 : A schematic diagram of an insulating rod of the present application;

[0025] Figure 6 : Schematic diagram of a live-operation-capable post-type porcelain insulator holding a conductor according to the present application;

[0026] In the above figure: 1 columnar porcelain part, 2 fixing part, 3 cable trough, 301 first installation space, 302 second installation space, 4 clamping part, 401 movable arm, 402 hinge part, 403 insulating rod connection part, 5 spring locking part, 6 hanging part, 601 roller, 602 ball, 7 insulating rod, 701 connecting end, 8 wire, 9 elastic structure, 901 rotating shaft, 902 first spring, 903 second spring, 904 first limiting rod, 905 second limiting rod. DETAILED DESCRIPTION

[0027] The following examples further illustrate the content of this application, but should not be construed as limiting the present application. Without departing from the spirit and substance of this application, modifications or replacements made to the methods, steps or conditions of this application are within the scope of this application.

[0028] In some embodiments, as Figure 1 As shown, a post-type porcelain insulator capable of live operation includes a post-type porcelain component 1 and a fixing component 2 connected end to end from top to bottom. A cable groove 3 is formed on the top surface of the post-type porcelain component 1. The post-type porcelain insulator capable of live operation also includes:

[0029] The clamping member 4 includes a movable arm 401, and a hinge 402 is provided in the middle of the movable arm 401. One end of the hinge 402 is fixedly connected to the columnar porcelain member 1, and the other end is hinged to the movable arm 401. The two sides of the hinge 402 are a clamping side and an operating side for opening and closing the clamping side. The clamping side is arranged opposite to the cable groove 3 to form a wire clamping space. An insulating rod connecting portion 403 is formed on the operating side.

[0030] Specifically, the hinge 402 includes a hinge shaft, one end of which is fixed to the protruding fulcrum of the columnar porcelain component 1 and the other end is connected to the middle hinge hole of the movable arm 401, so that the movable arm 401 can open and close around the hinge shaft.

[0031] Spring locking member 5: One end of the spring locking member 5 is fixedly connected to the operating side of the movable arm 401, and the other end is fixedly connected to the columnar porcelain member 1. The spring locking member 5 locks the wire clamping space after the wire is placed in the wire clamping space;

[0032] like Figure 2 and Figure 3 As shown, in some embodiments, the live-operated column porcelain insulator of the present application further includes a wire hanging member 6, which is arranged on the inner wall of the cable trough 3, and the wire hanging member includes a roller 601 or a plurality of balls 602, and the roller 601 is embedded in the inner wall of the center position of the cable trough 3 and partially exposed from the inner wall of the cable trough 3, and the rolling direction of the roller 601 is consistent with the extension direction of the wire in the cable trough 3; the plurality of balls 602 are evenly arranged on the inner wall of the cable trough 3.

[0033] Traditional wire hanging requires the use of a wire hanging pulley as an auxiliary device. The wire end is passed through the pulley and then other traction devices are used to pull the wire to adjust it to the appropriate length.

[0034] The present invention provides a wire hanging member 6 on the inner wall of the cable groove, which can play the same role as the traditional wire hanging pulley. When using the insulator of the present invention, there is no need to use the wire hanging pulley and then laboriously lift the wire into the insulator groove by pedaling a rod, and then remove the pulley. This frequent operation increases the workload of the construction workers.

[0035] For details, please refer to Figure 4When the wire hanging member 6 is a roller 601, the elastic structure 9 and the roller 601 are arranged in the installation space opened in the cable groove 3, and the installation space includes two first installation spaces 301 and a second installation space 302 located in the two first installation spaces, the two first installation spaces 301 include a top wall, a bottom wall and side walls, and the second space 302 includes an open top wall and a bottom wall, the elastic structure 9 includes a rotating shaft 901 passing through the axis of the roller 601, a first spring 902 and a second spring 903 supporting the rotating shaft, the two ends of the rotating shaft 901 are against the top walls of the two first installation spaces 301, one end of the first spring 902 and the second spring 903 are respectively fixedly connected to the two ends of the rotating shaft 901, and the other ends of the first spring 902 and the second spring 903 are respectively against the bottom walls of the two first installation spaces 301, and the roller 601 moves up and down in the second installation space 302 to protrude or retract the top wall of the opening of the second installation space 302.

[0036] In some embodiments, when the wire hanging member 6 is a plurality of balls 602, the cable trough 3 is provided with a plurality of holes with an opening diameter smaller than the diameter of the balls, and the plurality of balls are installed in the holes. The elastic structure includes a plurality of elastic elements, one end of the elastic element is fixed on the inner wall of the cable trough 3, and the other end is against the balls 602, so that the balls 602 protrude from the inner wall of the cable trough 3 when not locked by the locking member 5, and when the locking member 5 locks the wire clamping space, the balls 602 are pressed back to the inner wall of the cable trough 3.

[0037] The insulating rod used in this application is as Figure 4 As shown, the insulating rod 7 includes a rod body and a connecting end 701 formed with the top of the rod body. During specific use, the operator extends the connecting end 701 into the insulating rod connecting portion 403 and pulls the insulating rod 7 downward, so that the movable arm 401 rotates around the hinge 402, thereby opening the clamping side and exposing the wire clamping space. After the operator places the wire into the clamping space, with the help of the rolling action of the roller 601 or the ball 602, the wire can be easily dragged and adjusted to the appropriate length. The insulating rod 7 is released, and the movable arm 401 automatically returns to its position under the action of the spring locking member 5, tightly clamping the wire 8 in the arc-shaped clamping groove on the clamping side. Due to the presence of the wire hanging member 6, the wire 8 can pass smoothly when placed in the clamping space, reducing friction and avoiding wire damage.

[0038] It should be noted that when pulling the wire, in order to prevent the spring locking piece 5 from pressing the roller 601 or the ball 602 into the inner wall of the cable groove 3 after the wire is inserted, the operator needs to use an insulating rod to pull the spring locking piece 5 so that the roller 601 or the ball 602 remains in the appropriate position, which not only ensures that the roller 601 or the ball 602 is not completely pressed into the inner wall of the cable groove 3, but also avoids the opening of the movable arm 401 being too large, and the wire 8 falls out during the wire pulling process.

[0039] The staff puts the wire into the cable groove 3, and there is no need to use the traditional wire hanging pulley, and then step on the rod to laboriously pick the wire into the insulator groove, and then remove the pulley.

[0040] The design of the clamping and locking elements allows workers to clamp and release the insulator by manipulating the insulating rod without having to directly contact the insulator. This not only improves safety but also increases efficiency. This design is particularly valuable in high-voltage, live environments.

[0041] In some embodiments, the wire hanging piece is connected to the cable trough through an elastic structure, and the elastic structure allows the wire hanging piece to protrude from the inner wall of the cable trough when the wire is placed in the wire clamping space and is not locked by the locking piece. When the locking piece locks the wire clamping space, the wire hanging piece is pressed back to the inner wall of the cable trough.

[0042] The elastic structure ensures both flexibility when inserting the wire and stability after the wire is locked. This design allows the wire hanger to remain in place while maintaining normal operation when not in use, yet remain readily available when needed, improving overall efficiency and safety.

[0043] During use, the connecting end 701 of the insulating rod 7 is extended into the first ring 403 of the insulating rod connecting part. By operating the insulating rod 7, the opening and closing control of the movable arm 401 can be achieved. When a clamping operation is required, the insulating rod 7 is pulled down to drive the movable arm 401 to move upward, so that the clamping side of the movable arm 401 is opened, and then the wire to be clamped is placed on the clamping side, and then the insulating rod 7 is lowered to restore the spring locking part 5 to its natural state, and the movable arm 401 is tightly closed with the wire groove on the columnar porcelain part 1 to complete the clamping operation. When it is necessary to release the clamped wire, the insulating rod 6 is pulled down again to open the clamping side, and the wire can be released. The entire operation process is simple and convenient, and there is no need for staff to directly contact the columnar porcelain insulator, which greatly improves the safety and efficiency of the operation.

[0044] In some embodiments, the insulating rod connection portion is a hook provided on the operating side of the movable arm 401 , one end of the hook is fixedly connected to the operating side of the movable arm 401 , and the other end is an open structure.

[0045] When using a hook as the insulating rod connection, its design provides a different way to operate the movable arm. One end of the hook is tightly fixed to the operating side of the movable arm, ensuring it will not loosen or fall off during operation. The opening on the other end allows the insulating rod to be easily inserted and removed, providing workers with a quick and convenient way to connect and disconnect.

[0046] In actual operation, the operator simply aligns the connecting end 701 of the insulating rod with the opening of the hook and gently pushes the insulating rod 7 in until it is firmly connected to the hook. At this point, the operator can operate the insulating rod to drive the opening and closing of the movable arm. To disconnect, simply pull the insulating rod gently to remove it from the hook.

[0047] The hook-shaped insulating rod connection offers advantages such as simple structure, stable connection, and convenient operation. It is particularly suitable for operations requiring frequent rod replacement or quick connection and disconnection. Furthermore, the hook opening allows for a certain degree of freedom when connecting the insulating rod, allowing operators to adjust the angle and position of the insulating rod according to actual needs, further increasing operational flexibility and convenience.

[0048] In other embodiments, to further improve the stability and reliability of the movable arm, anti-slip grooves or anti-slip grooves can be provided on the contact surface between the columnar porcelain component 1 and the movable arm 401 to increase the friction between the two and prevent accidental opening due to vibration or external force during the clamping process. At the same time, anti-slip grooves or anti-slip sleeves can also be provided on the first circular ring 403 of the insulating rod connection to increase the friction between the insulating rod 7 and prevent loss of control due to sliding during operation.

[0049] The live-operation column-type porcelain insulator and its movable arm provided by the present application have the advantages of simple structure, easy operation, safety and reliability, and are particularly suitable for operation requirements in high-voltage and live environments. By improving the opening and closing method of the movable arm, the design of the locking piece and the insulating rod connection, the staff can complete the clamping and releasing operations without direct contact with the insulator, greatly improving the safety and efficiency of the operation. The design of this live-operation column-type porcelain insulator fully considers the needs of actual use. It should be noted that the elastic force of the compression spring enables the clamp to maintain a stable posture when closed, thereby avoiding the occurrence of wire dislodging.

[0050] The clamping side of the movable arm 401, facing the cable trough, is provided with an arcuate clamping groove for clamping the cable or conductor 8. Together, the arcuate clamping groove and the cable trough form a cable clamping space. To ensure the stability of the movable arm 401, the clamping side of the movable arm 401 and the cable trough together form a cable clamping space. This ensures that the weight of the conductor 8 in the clamping side is fully applied to the insulator 1, thus preventing instability or tilting of the movable arm due to the weight of the conductor 8. This design improves the stability of the movable arm.

[0051] A cable trough 3 is formed on the top surface of the columnar porcelain part 1. The cable trough can be a groove dug on the top surface of the columnar porcelain part 1, or it can be an additional structure fixed on the columnar porcelain part. Its size and shape design can ensure the stable placement of cables or wires therein. The design of the cable trough not only facilitates the positioning of cables or wires, but also enhances the connection stability between the cables or wires and the columnar porcelain part 1 through physical constraints. When an additional structure is adopted, high-strength materials such as stainless steel or special alloys are used to ensure the firmness and durability of the connection. At the same time, special connection processes such as welding or bolting are adopted to further improve the stability of the connection.

[0052] In practical applications, this design, where the column-shaped porcelain component is fixedly connected to the top surface of the insulator, improves the stability and safety of the movable arm. This design allows the movable arm to better perform its function in complex outdoor environments, providing a strong guarantee for safe production in the power industry. The movable arm maintains a stable position when clamping the insulator, preventing loosening or displacement caused by vibration or other external forces.

[0053] like Figure 3-Figure 6 As shown, the base of the post insulator in this application is fixedly connected to the transmission tower via a steel foot. The steel foot design takes into account the structure and load-bearing capacity of the transmission tower to ensure that the insulator can be securely mounted on the tower and withstand the tensile forces of the transmission line. The connection between the steel foot and the insulator uses high-strength bolts or welding to ensure reliability and durability.

[0054] In practical applications, the live-operation post-type porcelain insulator and its movable arm of this application can demonstrate unique advantages, whether in the maintenance and overhaul of high-voltage transmission lines or in the installation and commissioning of power equipment. By improving the stability and flexibility of the movable arm, this application not only greatly improves the safety and efficiency of operations, but also reduces the labor intensity and safety risks of workers. Furthermore, its simple and convenient operation makes it easier for workers to perform operations, improving work efficiency and quality.

[0055] The implementation of this application is not limited to the specific structures and methods described above. Various modifications and substitutions may be made to this application based on practical needs without departing from the spirit and substance of this application. For example, the locking member may utilize other elastic elements, such as springs or rubber; and the insulating rod connection may utilize other connection methods, such as threaded connections or snap-fit connections. These modifications and substitutions are within the scope of this application.

[0056] Although the present application has been described in detail above using general explanations, specific embodiments, and experiments, it will be apparent to those skilled in the art that modifications or improvements may be made based on the present application. Therefore, such modifications or improvements, which do not depart from the spirit of the present application, are within the scope of protection claimed in the present application.

Claims

1. A post-type porcelain insulator capable of live operation, comprising a post-type porcelain part (1) and a fixing part (2) connected end to end from top to bottom, wherein a cable groove (3) is formed on the top surface of the post-type porcelain part (1), characterized in that: The post-type porcelain insulator capable of live operation also includes: The clamping member (4) includes a movable arm (401), and a hinge (402) is provided in the middle of the movable arm (401). One end of the hinge (402) is fixedly connected to the columnar porcelain member (1), and the other end is hinged to the movable arm (401). The two sides of the hinge (402) are a clamping side and an operating side for opening and closing the clamping side. The clamping side and the cable groove (3) are arranged opposite to each other to form a wire clamping space. An insulating rod connecting portion is formed on the operating side. A spring locking member (5) wherein one end of the spring locking member (5) is fixedly connected to the operating side of the movable arm (401) and the other end is fixedly connected to the columnar porcelain member (1). The spring locking member (5) locks the wire clamping space after a wire is placed in the wire clamping space. A wire hanging member (6), the wire hanging member being arranged on the inner wall of the cable trough (3), the wire hanging member (6) comprising a roller (601) or a plurality of balls (602), the roller (601) being embedded in the inner wall of the cable trough (3) at the center thereof and partially exposed from the inner wall of the cable trough (3), the rolling direction of the roller (601) being consistent with the extending direction of the wire in the cable trough (3); the plurality of balls (602) being evenly arranged on the inner wall of the cable trough (3); The fixing member (2) is a steel foot, which includes a steel foot column perpendicular to the columnar porcelain piece (1), one end of the steel foot column is fixedly connected to the bottom surface of the columnar porcelain piece (1), and the steel foot column is provided with a thread.

2. The post-type porcelain insulator capable of live operation according to claim 1, characterized in that: The wire hanging member (6) is connected to the cable trough (3) via an elastic structure (9). The elastic structure enables the wire hanging member (6) to protrude from the inner wall of the cable trough (3) when the wire is placed in the wire clamping space and is not locked by the locking member (5). When the locking member (5) locks the wire clamping space, the wire hanging member (6) is pressed back to the inner wall of the cable trough (3).

3. The post-type porcelain insulator capable of live operation according to claim 2, characterized in that: When the wire hanging member (6) is a roller (601), the elastic structure (9) and the roller (601) are arranged in an installation space opened in the cable trough (3), and the installation space includes two first installation spaces (301) and a second installation space (302) located in the two first installation spaces (301), the two first installation spaces (301) include a top wall, a bottom wall and a side wall, the second installation space (302) includes an open top wall and a bottom wall, the elastic structure (9) includes a rotating shaft (901) passing through the axis of the roller (601), supporting the rotating shaft The first spring (902) and the second spring (903) are respectively arranged on the rotating shaft (901), and the two ends of the rotating shaft (901) are against the top walls of the two first installation spaces (301). One end of the first spring (902) and the second spring (903) are respectively fixedly connected to the two ends of the rotating shaft. The other ends of the first spring (902) and the second spring (903) are respectively against the bottom walls of the two first installation spaces (301). The roller (601) moves up and down in the second installation space (302) to protrude or retract the top wall of the opening of the second installation space (302).

4. The post-type porcelain insulator capable of live operation according to claim 2, characterized in that: When the wire hanging member (6) is a plurality of balls (602), the cable groove (3) is provided with a plurality of holes with an opening diameter smaller than the diameter of the balls, and the plurality of balls are installed in the holes. The elastic structure includes a plurality of elastic elements, one end of the elastic element is fixed on the inner wall of the cable groove (3), and the other end is against the balls (602), so that the balls (602) protrude from the inner wall of the cable groove (3) when not locked by the locking member (5). When the locking member (5) locks the wire clamping space, the balls (602) are pressed back to the inner wall of the cable groove (3).

5. The post-type porcelain insulator capable of live operation according to claim 2, characterized in that: The insulating rod connecting portion is a hook provided on the operating side of the movable arm (401), one end of the hook is fixedly connected to the operating side of the movable arm (401), and the other end is an open structure.

6. The post-type porcelain insulator capable of live operation according to claim 1, characterized in that: The clamping side of the movable arm (401) is provided with an arc-shaped clamping groove for clamping a wire relative to the cable groove (3), and the arc-shaped clamping groove and the cable groove are combined to form the wire clamping space.

7. The post-type porcelain insulator capable of live operation according to claim 1, characterized in that: The clamping side sleeve of the movable arm (401) is provided with rubber.

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