CN103647229B - Earth potential reset suspension insulator side of wire bowl head W sells special tool utensil - Google Patents

Abstract

Ground potential reset suspension insulator wire side bowl head W pin special tool, including a shell, the shell is a rectangular parallelepiped shell with one side open, a push block is set inside the shell, the push block slides along the shell, and the opening on the opposite side of the shell A through hole is set on the surface, and the push rod passes through the through hole. One end of the push rod is connected to the push block, and the other end of the push rod is connected to the vertical rod. The push rod is composed of two horizontal rods and a vertical rod. The upper end of the horizontal rod is connected to the rear end of one of the horizontal rods, the lower end of the vertical rod is connected to the front end of the other horizontal rod, and the first spring is wound on the upper horizontal rod. The ground potential electrician provided by the invention operates with a special tool to reset the W pin on the side bowl head of the suspension insulator wire. The invention can meet the needs of this work, avoid power outage maintenance, reduce the number of temporary stoppages of equipment, increase the availability factor of equipment, shorten the working time of live work, improve work efficiency, and improve the safety and power supply reliability of live work.

Description

Ground potential reset suspension insulator wire side bowl head W pin special tools

technical field

The invention relates to an electric power tool, in particular to a special tool for the ground potential reset suspension insulator wire side bowl head W pin.

Background technique

In ultra-high-voltage transmission lines, especially in 500 kV lines, inspectors found that the W pins in the bowl head on the side of the suspension insulator lead protrude frequently. This defect seriously threatens the safe and stable operation of the line and needs to be resolved in time. At present, the W pin on the side of the bowl head of the suspension insulator wire is generally reset manually during the power outage maintenance process. This method must wait for the power outage maintenance. During the waiting process, accidents are likely to occur, and the safety hazard is relatively large. Or live work is performed to reset the W pin on the side of the hanging insulator wire. After live work, the equipotential electrician directly pushes the W pin on the side of the hanging insulator wire into the bowl hanging plate after entering the electric field, and uses tools such as insulation boards to reset. There is no special tool for the W pin of the bowl head on the side of the wire of the suspension insulator, and there are often deviations in the reset, the live working time is longer, the work efficiency is low, and the safety is low. Equipotential live work has higher requirements on personnel, tools, environmental humidity, and safety distance, and equipotential live work is more complicated than ground potential live work.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a special tool for ground potential reset suspension insulator wire side bowl head W pin.

In order to achieve the above object, the present invention is achieved through the following technical proposals: the ground potential resets the special tool for the W pin of the side bowl head of the suspension insulator wire, including a shell, which is a rectangular parallelepiped shell with one side opening, and a push block is arranged inside the shell. The block slides along the shell, and a through hole is opened on the opposite side of the opening of the shell. The push rod passes through the through hole. One end of the push rod is connected to the push block, and the other end of the push rod is connected to the vertical rod. The push rod is composed of two The horizontal rod is composed of a vertical rod, the upper end of the vertical rod is connected to the rear end of one of the horizontal rods, the lower end of the vertical rod is connected to the front end of the other horizontal rod, and the upper end of the horizontal rod The first spring is wound on the top.

In order to further realize the object of the present invention, the following technical solutions can also be adopted: the vertical bar includes a first vertical bar, a second vertical bar and a cross bar, and there can be several connecting holes on the first vertical bar, and the connecting holes are vertically uniform Arrangement; several protrusions are arranged on the cross bar, and the protrusions are evenly arranged horizontally, one of the protrusions is matched with the connecting hole, the lower part of the cross bar is connected to the second vertical bar, and the second vertical bar is perpendicular to the cross bar. The end of the cross bar is provided with a supporting seat, and the end surface of the supporting seat is arc-shaped. A first handle is installed on the lower part of the first vertical rod, and a second handle is installed on the lower part of the second vertical rod, and both the first handle and the second handle are insulating materials. A first turntable and a second turntable are arranged between the push rod and the vertical bar, the first turntable is installed on the upper part of the vertical bar, the second turntable is connected to the push rod, the first turntable and the second turntable are coaxially connected, and the first turntable Several grooves are provided on the inner side of the first turntable, and the grooves are evenly distributed along the ring of the first turntable. At least one spring hole is opened on the inner side of the second turntable, and a second spring is arranged in the spring hole. One end of the second spring is connected to the inner end of the spring hole. A steel ball is installed at the other end of the spring, and the steel ball cooperates with one of the grooves. Lubricating oil is added between the push block and the housing.

The advantage of the present invention is that: the ground potential electrician provided by the present invention uses a special tool to operate, and resets the bowl head W pin on the wire side of the suspension insulator. Ground potential live work reset suspension insulator wire side bowl head W pin can meet the needs of this work, avoid power outage maintenance, reduce the number of equipment temporary shutdowns, increase the availability factor of equipment, increase power supply, shorten the working time of live work, and improve work efficiency , Improve the safety of live work and the reliability of power supply. When in use, put the side bowl head W pin of the wire side of the suspension insulator into the housing, push the push rod, and the bowl head W pin of the wire side of the suspension insulator wire will be squeezed into the original position, thereby realizing the reset work. The second vertical rod has the function of stability, and can realize the function of smoothly pushing the bowl head W pin on the side of the suspension insulator wire. The operation space is small, and it is convenient to complete the work of resetting the bowl head W pin on the side of the suspension insulator wire in a small space. convenient. The insulating material adopts the material with low conductivity to avoid high-voltage breakdown and improve the safety of use. The curved surface can cooperate with electric poles, electric poles, etc., so that the second vertical pole has a stable support surface, and the use process is more stable and convenient to use. The steel ball cooperates with the groove, which can keep the relative position of the first turntable and the second turntable unchanged within a certain force range, so that the push rod can maintain a certain angle with the horizontal plane, and realize the W pin with the side bowl head of the hanging insulator wire at different angles. The cooperation makes the W pin on the side of the bowl head of the reset suspension insulator wire more widely used. When it is necessary to change the angle, turn the second turntable slightly to adjust the angle of the push rod, thereby realizing the change of the angle. The invention also has the advantages of simple and compact structure, low manufacturing cost and easy use.

Description of drawings

Fig. 1 is a schematic structural diagram of the present invention; Fig. 2 is a schematic structural diagram of the right view of Fig. 1; Fig. 3 is a schematic diagram of a partial enlarged structure of Fig. 1; Fig. 4 is a schematic diagram of an enlarged structural diagram of A direction of Fig. 1; Ⅱ Schematic diagram of partially enlarged structure.

Reference signs: 1 housing 2 cavity 3 push block 4 push rod 5 first spring 6 second turntable 7 first turntable 8 first vertical bar 9 connection hole 10 cross bar 11 support seat 12 projection 13 second vertical bar 14 first handle 15 second handle 16 rotating shaft 17 steel ball 18 spring hole 19 groove 20 second spring 21 bolt 22 through hole.

detailed description

The ground potential reset suspension insulator wire side bowl head W pin special tool, as shown in Figure 1 and Figure 3, includes a shell 1, which is a rectangular parallelepiped shell with one side open, and a cavity 2 is formed inside the shell 1. A push block 3 is set inside the casing 1, and the push block 3 slides along the length direction of the cavity 2 of the casing 1. The push block 3 cooperates with the inner wall of the casing 1, and lubricating oil can be added between the push block 3 and the casing 1. In order to facilitate the smooth sliding of the push block 3 , at the same time, the lubricating oil insulates the push block 3 from the housing 1 . A through hole 22 is provided on the surface opposite to the opening of the housing 1, the push rod 4 passes through the through hole 22, the push rod 4 slides along the through hole 22, one end of the push rod 4 is connected to the push block 3, and the other end of the push rod 4 Connect the uprights. The push rod 4 is composed of two horizontal rods and a vertical rod. The upper end of the vertical rod is connected to the rear end of one of the horizontal rods, and the lower end of the vertical rod is connected to the other horizontal rod. The front end, the horizontal rod and two vertical rods are integrated into one structure, and the integrated structure is more solid. The first spring 5 is wound on the horizontal rod at the upper end, and the first spring 5 is directly set on the push rod 4 without any other means of fixing, which is convenient for manufacture. As shown in Figure 1, the right end of the first spring 5 is blocked by the vertical rod of the push rod 4, and the left end of the first spring 5 is blocked by the outside of the housing 1. The process of use is as follows: put the shell 1 cavity 2 on the bowl head W pin on the side of the hanging insulator wire that has fallen off, push the push rod 4 in the direction of the shell 1 by pushing the vertical rod, and make the push block 3 place the bowl head on the side of the hanging insulator wire The W pin squeezes into the original position to complete the reset work. Unclamp the push rod 4, and under the action of the first spring 5, the push rod 4 resets, and then the next reset work of the bowl head W pin on the wire side of the suspension insulator is performed. The ground potential electrician provided by the invention uses a special tool to operate, and resets the bowl head W pin on the wire side of the suspension insulator. Ground potential live work reset suspension insulator wire side bowl head W pin can meet the needs of this work, avoid power outage maintenance, reduce the number of equipment temporary shutdowns, increase the availability factor of equipment, increase power supply, shorten the working time of live work, and improve work efficiency , Improve the safety of live work and the reliability of power supply.

In order to facilitate the reset operation of the bowl head W pin on the wire side of the overhanging insulator at a higher position, as shown in Figures 1 and 2, the vertical bar includes a first vertical bar 8, a second vertical bar 13 and a cross bar 10, the first The vertical bar 8, the second vertical bar 13 and the cross bar 10 are all made of insulating material. On the first vertical bar 8, there are several connecting holes 9, and the connecting holes 9 are vertically evenly arranged; on the cross bar 10, several projections 12 are arranged , the projections 12 are uniformly arranged in the horizontal direction, and one of the projections 12 is matched with the connection hole 9. According to different matching methods, the height and length of the push rod 4 can be adjusted. When the uppermost connection hole 9 is used to cooperate with one of the protrusions 12; when the distance between the bowl head W pin on the side of the suspending insulator wire is far away, the leftmost protrusion 12 is used to cooperate with the connection hole 9. The lower part of the cross bar 10 is connected with the second vertical bar 13 , and the second vertical bar 13 is perpendicular to the cross bar 10 . When in use, hold the first vertical bar 8 with one hand, and the second vertical bar 13 with the other hand, and rotate the first vertical bar 8 along the matching bump 12 to realize the reset work of the bowl head W pin on the side of the hanging insulator wire . The second vertical bar 13 has the effect of stability, and can realize the effect of steadily promoting the side bowl head W pin of the wire side of the suspension insulator. The operation space is small, and it is convenient to complete the work of resetting the bowl head W pin of the wire side of the suspension insulator in a small space. Easy to use.

In order to facilitate cooperation with electrical columns, etc., as shown in FIG. 4 , a support seat 11 is provided at the end of the cross bar 10 , and the end surface of the support seat 11 is arc-shaped. The arc-shaped surface can cooperate with electric poles, utility poles, etc., so that the second vertical pole 13 has a stable support surface, and the use process is more stable and convenient to use.

In order to improve safety, the first handle 14 is installed on the lower part of the first vertical bar 8, and the second handle 15 is installed on the lower part of the second vertical bar 13, both of the first handle 14 and the second handle 15 are made of insulating material. The insulating material adopts the material with low conductivity to avoid high-voltage breakdown and improve the safety of use.

In order to be able to complete the reset work of the bowl head W pin on the wire side of the suspension insulator at different inclination angles, as shown in Figure 2, Figure 3 and Figure 5, a first turntable 7 and a second turntable 7 are set between the push rod 4 and the vertical rod. The turntable 6, the first turntable 7 and the second turntable 6 cooperate with each other, the first turntable 7 is installed on the upper part of the vertical bar, the second turntable 6 is connected to the push rod 4, the first turntable 7 and the second turntable 6 are connected coaxially, The first turntable 7 and the second turntable 6 can rotate relative to each other along the axis. Several grooves 19 are provided on the inner side of the first turntable 7. The grooves 19 are evenly distributed along the ring of the first turntable 7. At least one spring is provided on the inner side of the second turntable 6. Holes 18, preferably 4 spring holes, 4 spring holes 18 are evenly arranged along the disk surface of the second turntable 6, and the second spring 20 is arranged in the spring hole 18, and one end of the second spring 20 is connected to the inner end of the spring hole 18. The other end of the second spring 20 is equipped with a steel ball 17, and the steel ball 17 cooperates with one of the grooves 19. The steel ball 17 cooperates with the groove 19 to keep the relative position of the first turntable 7 and the second turntable 6 unchanged within a certain force range, so that the push rod 4 can maintain a certain angle with the horizontal plane, and realize the connection with the hanging insulator wires at different angles. The cooperation of the side bowl head W pin makes the use range of the side bowl head W pin of the reset suspension insulator wire wider. When it is necessary to change the angle, turn the second turntable 6 slightly to adjust the angle of the push rod 4, thereby realizing the change of the angle.

The present invention also has the following advantages:

1. Versatility

The equipotential work is done using the method of ground potential. Eliminate possible harm to personnel caused by equipotential live work. Reduce operating time from the link and improve the efficiency of the overall work.

The ground potential resets the special tool for the W pin of the bowl head on the wire side of the suspension insulator, and pushes the W pin into the bowl head hanging plate by operating the insulation operating lever. This kind of design has the characteristics of general purpose, and can not be limited by the tower type, and can be used for the W pin of the wire end bowl head hanging plate of any suspension insulator.

2. Convenience

The ground potential reset suspension insulator wire side bowl head W pin special tool body is small in size and light in weight, and its shape basically does not change after being stressed. The use of such tools can directly replace the transportation burden of equipotential electricians entering and leaving the electric field, which improves the work efficiency of ground electrician preparation and ground potential electrician operation, reduces the safety risk of high-altitude operation projects, and thus achieves convenient and fast maintenance operations Effect.

3. Simple and practical

1) The production process is simple.

The structural design of the special tool for the ground potential reset suspension insulator wire side bowl head W pin makes it universal in use, thus greatly simplifying the production process and reducing many unnecessary contents and links in the production of tools. The effect that the production process is simple is achieved, and the production efficiency of tools is improved.

2) The management mode is simple.

The use of special tools for ground potential reset suspension insulator wire side bowl head W pin can directly replace equipotential live work, which simplifies the management of special promoters and improves management efficiency.

3) Simple way of working

The ground potential reset pendant insulator wire side bowl head W pin special tool is aligned with the protruding W pin, the ground potential electrician gently pushes the insulation operating lever, so that the ground potential reset pendant insulator wire side bowl head W pin enters the special shell 1, and the ground potential reset The potential electrician uses a little force to reset the ground potential to reset the W pin on the side of the bowl head of the hanging insulator wire. The use of ground potential reset suspension insulator wire side bowl head W pin special tool can greatly improve the work efficiency of the job site.

Through the reset test of the ground potential reset suspension insulator wire side bowl head W pin in the simulation test, this device greatly simplifies the working steps of the operators, improves work efficiency, reduces labor intensity, shortens the entire operation time, and reduces Risk to the safety of personnel on the tower.

By using light weight, easy to install, safe and reliable special tools, the work of resetting the W pins of the side bowl head hanging plates of various suspension insulator wires on 500kV AC lines can be completed, and the production is simple, and it is convenient for popularization and use.

The present invention is designed in strict accordance with relevant standards, and meets the requirements of relevant national standards. The design reference basis and standards are as follows:

GB 50233-2005 Code for Construction and Acceptance of 110-500kV Overhead Transmission Lines

Q/318-109.601-2011 500kV Transmission Line Maintenance Regulations

Q/318-108.620-2011 500kV Transmission Line Operation Regulations

GB/T 18037-2008 Basic technical requirements and design guidelines for live working tools.

The technical solutions of the present invention are not limited within the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims (6)

1. The special tool for ground potential reset suspension insulator wire side bowl head W pin, which is characterized in that it includes a shell (1), which is a rectangular parallelepiped shell with one side open, and a pusher is set inside the shell (1). The block (3), the push block (3) slides along the housing (1), and a through hole (22) is opened on the opposite side of the opening of the housing (1), and the push rod (4) passes through the through hole (22) , one end of the push rod (4) is connected to the push block (3), and the other end of the push rod (4) is connected to the vertical rod. The push rod (4) is composed of two horizontal rods and one vertical rod. The upper end of the rod is connected to the rear end of one of the horizontal rods, the lower end of the vertical rod is connected to the front end of the other horizontal rod, and the first spring (5) is wound on the upper horizontal rod. 2. The ground potential reset suspension insulator wire side bowl head W pin special tool according to claim 1, characterized in that: the vertical rod includes a first vertical rod (8), a second vertical rod (13) and On the cross bar (10), several connecting holes (9) can be arranged on the first vertical bar (8), and the connecting holes (9) are arranged vertically and evenly; (12) Evenly arranged in the horizontal direction, one of the protrusions (12) is matched with the connecting hole (9), the lower part of the cross bar (10) is connected to the second vertical bar (13), and the second vertical bar (13) and the horizontal bar (10 )vertical. 3. The ground potential reset suspension insulator wire side bowl head W pin special tool according to claim 2, characterized in that: the end of the cross bar (10) is provided with a support seat (11), and the support seat (11 ) has an arc-shaped end face. 4. The ground potential reset suspension insulator wire side bowl head W pin special tool according to claim 2, characterized in that: the first handle (14) is installed on the lower part of the first vertical bar (8), and the second A second handle (15) is installed on the bottom of the vertical bar (13), and both the first handle (14) and the second handle (15) are insulating materials. 5. The ground potential reset suspension insulator wire side bowl head W pin special tool according to claim 1, characterized in that: the first turntable (7) and the second turntable (7) are set between the push rod (4) and the vertical rod Two turntables (6), the first turntable (7) is installed on the upper part of the vertical bar, the second turntable (6) is connected to the push rod (4), the first turntable (7) and the second turntable (6) are connected coaxially, the second turntable A number of grooves (19) are provided on the inner side of a turntable (7), and the grooves (19) are evenly distributed along the ring of the first turntable (7), and at least one spring hole (18) is set on the inner side of the second turntable (6), and the spring A second spring (20) is arranged in the hole (18), and one end of the second spring (20) is connected to the inner end of the spring hole (18), and the other end of the second spring (20) is installed with a steel ball (17), and the steel ball (17 ) mates with one of the grooves (19). 6. The special tool for ground potential reset suspension insulator wire side bowl head W pin according to claim 1, characterized in that lubricating oil is added between the push block (3) and the housing (1).