CN220020752U - Lightning protection mechanism of column insulator - Google Patents

Abstract

The utility model discloses a lightning protection mechanism of a column insulator, which is provided with an insulator body, wherein a fixing frame is fixedly arranged at the bottom of the insulator body and used for installing the insulator body, a connecting component used for supporting a connecting cable is arranged at the top of the insulator body, an arc striking ball is fixedly arranged at the end part of the fixing frame, a spherical connector is fixedly arranged at the top of the insulator body, the connector is detachably connected with the connecting component, the connecting component comprises a supporting frame, the bottom of the supporting frame is rotatably connected with a mounting seat through a connecting piece, two clamping plates are connected with the bottom of the mounting seat in a sliding manner, the two clamping plates are symmetrically arranged at two sides of the connector, hemispherical grooves matched with the connector are formed in the clamping plates, threaded rods are connected onto the mounting seat in threads, external threads with opposite rotating directions at two ends are formed on the threaded rods, the two external threads on the threaded rods are respectively connected with different clamping plates in threads, and an arc striking rod is fixedly arranged on the side wall of the mounting seat.

Description

Lightning protection mechanism of post insulator

Technical field

The utility model relates to the field of insulators, and in particular to a lightning protection mechanism of a column insulator.

Background technique

Insulators are devices installed between conductors of different potentials or between conductors and grounding components that can withstand voltage and mechanical stress. During the power transmission process, due to electromagnetic effects, transmission lines will generate electromagnetic waves under the action of current. During thunderstorms, , are easily struck by lightning, which seriously affects the quality of normal power grid power supply. In order to avoid disconnection accidents in insulated wires or high-voltage cables when struck by lightning, lightning protection mechanisms are usually installed on insulators.

However, the insulators and clamping hardware of existing insulator lightning protection mechanisms are generally of an integrated structure. The overall structure is relatively complex and has low versatility. When the insulator is damaged and needs to be replaced, it needs to be disassembled and assembled as a whole. The operation is cumbersome and the cost of replacement and maintenance is high. Higher, the operation is more difficult.

Utility model content

In order to solve the above problems, the utility model proposes a lightning protection mechanism of a pillar insulator, which includes an insulator body. A fixing frame is fixedly installed at the bottom of the insulator body for the installation of the insulator body. A lightning protection mechanism and a mounting bracket are installed on the insulator body. The connection component that supports the connection cable. The lightning protection mechanism includes an arc-starting ball connected to the ground electrode fixed at the end of the fixed frame. A spherical connector is fixed at the top of the insulator body. The lightning protection mechanism also includes a support frame. The bottom of the support frame is connected by The parts are rotatably connected with a mounting base. There are two splints slidingly connected to the bottom of the mounting base. The two splints are symmetrically arranged on both sides of the connector. There are hemispherical grooves on the splints that match the connector. There are threads on the mounting base. A threaded rod is connected, and two sections of external threads with opposite rotation directions are provided on the threaded rod. The two sections of external threads on the threaded rod are threadedly connected to different splints respectively, and an arc-starting rod is fixed on the side wall of the mounting base.

Further, the connecting piece includes a limiting rod that can penetrate the mounting base and the supporting frame. A plurality of ribs are evenly spaced around the outer periphery of the limiting rod around the axis. Positioning holes are provided on both the mounting base and the supporting frame. The positioning holes are surrounded by A plurality of positioning slots are evenly provided on the axis, and the positioning slots are matched with the ribs. The ribs and the positioning slots cooperate to limit the relative rotation of the mounting base and the support frame.

Further, the limit rod is provided with a plurality of limit holes in the radial direction. The limit holes correspond to the ribs one by one and penetrate the top of the ribs. The support frame is provided with positioning pin holes, and the positioning pin holes are provided with limit pins. The limit pin can extend along the positioning hole and be inserted into the limit hole, and the limit pin and the positioning hole are an interference fit.

Further, the connection component includes a cable seat at the top of the support frame. The cable seat includes a top seat and a base that are symmetrically arranged. One end of the top seat is connected to the base through a hinge and the other end is connected through a threaded fastener. The top seat and the base are evenly connected. A wire trough is provided, and a clamping component for supporting the cable is provided in the wire trough.

Further, the clamping assembly includes a first clamping plate fixed on the base. The first clamping plate is arc-shaped. The clamping assembly also includes a guide rod vertically slidingly connected to the top base. The guide rod extends through the top base toward the base. An arc-shaped second clamping plate is fixed at the end, and the guide rod covers the return spring. Both ends of the return spring are respectively fixed with the second clamping plate on the bottom wall of the top base. A push rod is vertically threaded on the top base to push The lower end of the rod can be in contact with the second clamping plate.

Further, the first and second clamping plates are made of insulating rubber, and anti-slip teeth are fixed on the inner walls of the first and second clamping plates.

The beneficial effects of this utility model are as follows:

1. The lightning protection mechanism of the column insulator provided by this utility model can drive the splints closer and farther away from each other by rotating the threaded rod, realizing the rapid disassembly and assembly of the insulator body and the lightning protection mechanism, and the insulator is connected to the mounting base through a spherical connector. The connection can be rotated at any angle, making it easier to install and replace the insulator body.

2. The lightning protection mechanism of the column insulator provided by this utility model can adjust the position and angle between the arc striking rod and the arc striking ball by rotating the mounting base, so that the lightning protection mechanism of the insulator can match the insulator body of different specifications, which increases the The scope of application of insulator lightning protection mechanism.

Description of the drawings

Figure 1 is a front view of the utility model;

Figure 2 is an enlarged schematic diagram of point A in Figure 1;

Figure 3 is a schematic side view of the structure of the utility model;

Figure 4 is an enlarged schematic diagram of point B in Figure 3.

The reference symbols are as follows: 1. Insulator body; 2. Fixed frame; 3. Arc ball; 4. Connector; 5. Support frame; 501. Positioning hole; 6. Mounting seat; 7. Plywood; 8. Threaded rod ; 9. Arc striking rod; 10. Limiting rod; 1001. Rib plate; 1002. Limiting hole; 11. Positioning hole; 12. Positioning slot; 13. Limiting pin; 14. Cable holder; 1401. Top base ; 1402, base; 1403, wire groove; 1501, first clamping plate; 1502, guide rod; 1503, second clamping plate; 1504, return spring; 1505, anti-slip teeth.

Detailed ways

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. The orientation structure and operation of the invention cannot be construed as limitations of the present invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The utility model will be further described below in conjunction with the accompanying drawings of the description:

As shown in Figures 1 to 4, a lightning protection mechanism for a pillar insulator includes an insulator body 1. A fixing frame 2 is fixedly installed at the bottom of the insulator body 1 for the installation of the insulator body 1. Preferably, the fixing frame 2 is provided with The through hole is used for the installation of nut fasteners. The insulator body 1 is equipped with a lightning protection mechanism and a connecting component for supporting the connecting cable. The lightning protection mechanism includes a fixing frame 2 with an arc ball 3 connected to the ground electrode fixed at the end. , a spherical connector 4 is fixed on the top of the insulator body 1, the lightning protection mechanism also includes a support frame 5, the bottom of the support frame 5 is rotatably connected to a mounting base 6 through a connector, and the bottom of the mounting base 6 is slidingly connected to two splints 7 , two splints 7 are symmetrically arranged on both sides of the connector 4. The splints 7 are provided with hemispherical grooves that match the connector 4. The two splints 7 are close to each other to form a cavity for accommodating the connector 4, and the connection The head 4 and the cavity can freely rotate around the axis. The mounting base 6 is threadedly connected to a threaded rod 8. The threaded rod 8 is provided with external threads with opposite rotation directions at both ends. The two sections of external threads on the threaded rod 8 are respectively connected with the splint. 7 threaded connection, and the arc rod 9 is fixed on the side wall of the mounting base 6.

In this embodiment, the connecting member includes a limiting rod 10 that can penetrate the mounting base 6 and the supporting frame 5. A plurality of ribs 1001 are evenly spaced around the outer periphery of the limiting rod 10, and the mounting base 6 and the supporting frame 5 are both on top. A positioning hole 11 is provided, and a plurality of positioning grooves 12 are evenly provided around the axis around the positioning hole 11. The positioning grooves 12 are adapted to the ribs 1001. The limiting rod 10 can be inserted into the positioning holes 11. The ribs 1001 and the positioning grooves 12 cooperation can limit the relative rotation of the mounting base 6 and the support frame 5, thereby limiting the rotation of the installation and preventing the position of the arc rod 9 on the mounting base 6 from shifting.

In this embodiment, the limit rod 10 is provided with a plurality of limit holes 1002 along the radial direction. The limit holes 1002 correspond to the ribs 1001 one-to-one and penetrate the top of the ribs 1001. The support frame 5 is provided with positioning pin holes 501. A limiting pin 13 is provided in the positioning pin hole 501. The limiting pin 13 can extend along the positioning hole 11 and be inserted into the limiting hole 1002. The limiting pin 13 can limit the axial movement of the limiting rod 10. Preferably, the limiting pin 13 It is an interference fit with the positioning hole 11 to achieve a tight fit.

In this embodiment, the connection assembly includes a cable seat 14 opened at the top of the support frame 5. The cable seat 14 includes a top seat 1401 and a base 1402 arranged symmetrically. One end of the top seat 1401 and the base 1402 are connected through a hinge and the other end is connected through a threaded fastener. Connected, the top base 1401 and the base 1402 are both provided with wire grooves 1403, and the wire grooves 1403 are provided with clamping components to support the cables. The clamping components can clamp, support and fix the cables.

In this embodiment, the clamping assembly includes a first clamping plate 1501 fixed on the base 1402. The first clamping plate 1501 is arc-shaped. The first clamping plate 1501 provides support for the cable. The clamping assembly also includes a top base. 1401 is a guide rod 1502 that is vertically slidably connected. The guide rod 1502 extends through the top base 1401 toward the base 1402 and is fixed with an arc-shaped second clamping plate 1503 at the end. The guide rod 1502 is covered with a return spring 1504, and both ends of the return spring 1504 are They are respectively fixed to the second clamping plate 1503 on the bottom wall of the top base 1401. A push rod is vertically threaded on the top base 1401. The lower end of the push rod can be in contact with the second clamp plate 1503. Rotating the push rod can drive the push rod to the The second clamping plate 1503 is moved downward, thereby pushing the second clamping plate 1503 to move downward and close to the first clamping plate 1501 to complete the clamping of the cable. The return spring 1504 can provide elastic force for the second clamping plate 1503 when the pushing rod is away from the second clamping plate 1503. The clamping plate 1503 is reset.

In this embodiment, the first clamping plate 1501 and the second clamping plate 1503 are made of insulating rubber. Anti-slip teeth 1505 are fixed on the inner walls of the first clamping plate 1501 and the second clamping plate 1503. The anti-slip teeth 1505 can be added. Friction prevents the cable from shaking.

The working principle of the utility model is as follows: Place the cables that need to be connected and supported on the first clamping plate 1501 of the base 1402, use threaded fasteners to connect the base 1402 and the top base 1401, and rotate the push rod to push the second clamping plate 7 Approach and clamp the cable. When the insulator body 1 is damaged and needs to be replaced, turn the threaded rod 8 so that the two clamping plates 7 on the mounting base 6 move away from each other so that the connector 4 on the top of the insulator body 1 can be connected to the clamping plate 7 The semicircular groove is detached, thereby realizing the rapid replacement of the insulator. The insulator body 1 can be quickly replaced. When replacing different insulators, it is necessary to adjust the distance between the arc striking rod 9 and the arc striking ball 3. Move axially along the limit rod 10 Limit rod 10, rotate the mounting base 6 to adjust the distance between the arc rod 9 and the arc ball 3. When the positioning groove 12 around the positioning hole 11 on the mounting base 6 coincides with the positioning groove 12 of the positioning hole 11 on the support frame 5 When re-inserting the limit rod 10, the rib 1001 on the limit rod 10 cooperates with the positioning groove 12 to limit the relative rotation of the mounting base 6 and the support frame 5. In lightning weather, the wires in the connecting assembly withstand lightning overvoltage. , its voltage will be transmitted to the arc ball 3 through the arc rod 9, and then conducted to the ground by the ground electrode, thereby achieving the function of voltage transmission and lightning protection.

The basic principles, main features and advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims (7)

1. A lightning protection mechanism for a post-type insulator, including an insulator body (1). A fixing frame (2) is fixedly installed at the bottom of the insulator body (1) for the installation of the insulator body (1). The insulator body (1) A lightning protection mechanism and a connecting component for supporting the connecting cable are installed on the insulator body (1), which is characterized in that: a spherical connector (4) is fixed on the top of the insulator body (1), and the lightning protection mechanism includes a fixing frame (2 ) An arc ball (3) with a fixed end connected to the ground electrode. The lightning protection mechanism also includes a support frame (5). The bottom of the support frame (5) is rotatably connected to a mounting base (6) through a connector. , there are two splints (7) slidingly connected to the bottom of the mounting base (6), the two splints (7) are symmetrically arranged on both sides of the connector (4), and the splint (7) is provided with a connection head (4) A matching hemispherical groove. A threaded rod (8) is threadedly connected to the mounting base (6). The threaded rod (8) is provided with two sections of external threads with opposite rotational directions. The two sections of external threads on the threaded rod (8) are threadedly connected to different splints (7) respectively, and an arc-starting rod (9) is fixed on the side wall of the mounting seat (6). 2. A lightning protection mechanism for post-type insulators according to claim 1, characterized in that: the connecting member includes a limiting rod (10) that can penetrate the mounting seat (6) and the support frame (5), so A plurality of ribs (1001) are evenly spaced around the axis of the limiting rod (10), and positioning holes (11) are provided on the mounting seat (6) and the support frame (5). The positioning holes (11) 11) A plurality of positioning grooves (12) are evenly provided on the circumference around the axis. The positioning grooves (12) are adapted to the ribs (1001). The ribs (1001) cooperate with the positioning grooves (12) to limit the Relative rotation of the mounting base (6) and the support frame (5). 3. A lightning protection mechanism for pillar insulators according to claim 2, characterized in that the limiting rod (10) is provided with a plurality of limiting holes (1002) along the radial direction, and the limiting holes (1002) corresponds to the rib plate (1001) one-to-one and penetrates the top of the rib plate (1001). The support frame (5) is provided with a positioning pin hole (501), and a limited position is provided in the positioning pin hole (501). Pin (13), the limiting pin (13) can extend along the positioning hole (11) and be inserted into the limiting hole (1002). 4. A lightning protection mechanism for a pillar insulator according to claim 3, characterized in that the limiting pin (13) and the positioning hole (11) are an interference fit. 5. A lightning protection mechanism for post-type insulators according to claim 1, characterized in that: the connection assembly includes a cable seat (14) opened at the top of the support frame (5), and the cable seat (14) ) includes a symmetrically arranged top seat (1401) and a base (1402). One end of the top seat (1401) and the base (1402) are connected through a hinge and the other end is connected through a threaded fastener. The top seat (1401) and the base (1402) are provided with wire grooves (1403), and clamping components for supporting cables are provided in the wire grooves (1403). 6. A lightning protection mechanism for post-type insulators according to claim 5, characterized in that: the clamping assembly includes a first clamping plate (1501) fixed on the base (1402), and the first clamping The wire plate (1501) is arc-shaped, and the clamping assembly also includes a guide rod (1502) vertically slidingly connected to the top seat (1401), and the guide rod (1502) penetrates the top seat (1401) toward the base (1402) An arc-shaped second clamping plate (1503) is extended and fixed at the end. The guide rod (1502) is covered with a return spring (1504). Both ends of the return spring (1504) are respectively connected to the bottom of the top seat (1401). The second clamping plate (1503) of the wall is fixed, and a push rod is vertically threaded on the top base (1401), and the lower end of the push rod can abut with the second clamping plate (1503). 7. A lightning protection mechanism for a pillar insulator according to claim 6, characterized in that: the first clamping plate (1501) and the second clamping plate (1503) are made of insulating rubber, and the first clamping plate (1503) is made of insulating rubber. Anti-slip teeth (1505) are fixed on the inner walls of the first wire clamping plate (1501) and the second wire clamping plate (1503).