CN212323685U

CN212323685U - Lightning protection device for power transmission and distribution line

Info

Publication number: CN212323685U
Application number: CN202021347277.9U
Authority: CN
Inventors: 赖岳飞; 马火金; 姜涛
Original assignee: Shenzhen Dingying Electric Power Construction Development Co ltd
Current assignee: Shenzhen Dingying Electric Power Construction Development Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-01-08
Anticipated expiration: 2030-07-09

Abstract

The utility model relates to a lightning protection device for power transmission and distribution lines, including arrester and the insulating support of rigid coupling on the arrester, be provided with the adjustment support on the insulating support, the adjustment support is including extension board one and extension board two that are the bar form, a plurality of through-holes one has evenly been seted up along the length direction of extension board one, a plurality of through-holes two have evenly been seted up along the length direction of extension board two, the interval between two adjacent through-holes one and two adjacent through-holes two equals, the tip that insulating support kept away from arrester one end has seted up through-hole three, extension board one is contradicted with insulating support, wear to be equipped with connecting bolt one in through-hole one and the through-hole three, extension board two is kept away from insulating support one side and is contradicted, wear to be equipped with connecting bolt two in through-hole one and the through-hole three of insulating support one side, the one end. This application has the effect that can guarantee the normal operation of transmission tower through the mounted position of adjustment lightning protection device.

Description

Lightning protection device for power transmission and distribution line

Technical Field

The application relates to the field of electric power auxiliary equipment, in particular to a lightning protection device for a power transmission and distribution line.

Background

The iron tower or the telegraph pole on which the transmission line is erected is mostly provided with a metal oxide arrester which is used for protecting the insulation performance of electrical equipment in the power system from being damaged by lightning overvoltage or avoiding the damage of internal overvoltage caused by equipment operation, and the safety and the stability of the operation of the power system are related. The working principle of the lightning arrester is based on the nonlinear resistance characteristic of an internal valve plate material, the valve plate material has large resistance under the system operation voltage, and the passing current is small and cannot be burnt out; when the voltage rises, the resistance of the valve plate material becomes very small, so that the device can be protected by passing large current and having very low residual voltage.

Chinese patent with publication number CN207353028U among the prior art, it discloses a 10kV distribution lines's fixed gap multi-chamber lightning protection device, including the power transmission line, including wire, insulator and lightning protection device, the one end of wire links to each other with the power transmission line, the other end of wire links to each other with the top of insulator, the top of insulator is equipped with first fixed bolster, the bottom of insulator is equipped with the second fixed bolster, first fixed bolster is the Z shape, lightning protection device bottom links to each other with the second fixed bolster, the top of first fixed bolster is located lightning protection device's top, this device simple structure is reasonable, no discrete part, simple to operate.

Aiming at the related technologies, the inventor thinks that the defects that the installation position of the lightning protection device cannot be adjusted and the normal operation of the power transmission tower is influenced under the characteristic environment exist.

SUMMERY OF THE UTILITY MODEL

In order to guarantee the normal operation of transmission tower through the mounted position of adjustment lightning protection device, this application provides a transmission and distribution lines lightning protection device.

The application provides a pair of transmission and distribution lines lightning protection device adopts following technical scheme:

a lightning protection device for a power transmission and distribution line comprises a lightning arrester and an insulating support fixedly connected to the lightning arrester, wherein an adjusting support is arranged on the insulating support and comprises a first support plate and a second support plate which are strip-shaped, a plurality of first through holes are uniformly formed in the length direction of the first support plate, a plurality of second through holes are uniformly formed in the length direction of the second support plate, the distance between every two adjacent first through holes and every two adjacent second through holes are equal, a third through hole is formed in the end part, far away from one end of the lightning arrester, of the insulating support, the first support plate is abutted against the insulating support, a first connecting bolt is penetrated through the first through holes and the third through holes, the second support plate is abutted against one side, far away from one side of the insulating support, of the first through holes and the third through holes, and one end of the second support plate, which is far away from the insulating support, is fixedly connected with a support column which is perpendicular to the second support plate.

Through adopting above-mentioned technical scheme, adjust the coincidence area between extension board one and the extension board two, can adjust the mounted position of arrester, in addition, loosen connecting bolt one, can adjust the circumference position of arrester, and then can realize carrying out position control to the arrester, reduce and lead to the fact the influence to the power transmission line on the transmission tower to guarantee the normal operation of transmission tower.

Preferably, the extension board is close to insulating support one end rigid coupling has the switching plectane, the switching plectane is close to insulating support one side has been seted up a plurality of edges switching plectane a week evenly distributed's draw-in groove, draw-in groove length direction passes the centre of a circle of switching plectane, insulating support is close to the one side integrated into one piece of switching plectane have with draw-in groove matched with card strip, through-hole four has been seted up in the centre of a circle of switching plectane, the axis of through-hole four with the axis collineation of through-hole one.

Through adopting above-mentioned technical scheme, when adjusting insulating bracket, can place the card strip of insulating bracket bottom surface in the draw-in groove of different positions, utilize the cooperation of draw-in groove and card strip, can reduce insulating bracket and take place to rotate, further guaranteed the steadiness of arrester.

Preferably, the number of the clamping strips is three, and the three clamping strips are integrally formed on the bottom surface of the insulating support along the circle of the switching circular plate.

Through adopting above-mentioned technical scheme, utilize three card strip and draw-in groove to mutually support, can increase the area of contact of insulating support and rotation plectane, further improved the steadiness of arrester.

Preferably, the support column is kept away from the one end of extension board two is provided with the mount pad, the mount pad includes bottom plate and pipe, the perpendicular rigid coupling of pipe in on the centre of a circle of the lateral wall of one side wherein of bottom plate, the support column is inserted and is located in the pipe, follow a plurality of evenly distributed's through-hole five is seted up to a week of pipe, follows a plurality of evenly distributed's through-hole six is seted up to a week of support column, through-hole five with wear to be equipped with connecting bolt three in the through-hole six.

Through adopting above-mentioned technical scheme, take connecting bolt three out from through-hole five and through-hole six, can adjust the circumference angle of support column, further increased the adjustment range of arrester.

Preferably, the five through holes are distributed at intervals in the height direction of the supporting column, and the six through holes are distributed at intervals in the height direction of the circular tube.

By adopting the technical scheme, the five through holes and the six through holes are distributed at intervals, so that the five through holes and the six through holes can be sufficiently formed along the periphery of the support column and the round pipe, fewer holes are formed in the height direction of the cigarette support column and the round pipe, and the stability of the support column and the round pipe structure can be improved.

Preferably, the number of the connecting bolts is two.

Through adopting above-mentioned technical scheme, utilize two connecting bolt three to fix between support column and the pipe, be favorable to improving the steadiness between support column and the pipe.

Preferably, a supporting plate is arranged between the supporting column and the second supporting plate.

Through adopting above-mentioned technical scheme, utilize the backup pad, can be so that form a triangle-shaped between backup pad, support column and the extension board two, because triangle-shaped has good stability, and then can improve the steadiness between support column and the extension board two.

Preferably, the supporting plate comprises an integrally formed inclined plate and a horizontal plate, one end of the inclined plate is fixedly connected with the side wall of the supporting column, the other end of the inclined plate is integrally formed with one end of the horizontal plate, and the second connecting bolt penetrates through the horizontal plate.

Through adopting above-mentioned technical scheme, utilize the horizontal plate, and connecting bolt two passes the horizontal plate to stack each other and tightly laminate between horizontal plate, extension board one and the extension board two, thereby can improve lightning protection device's steadiness.

In summary, the present application includes at least one of the following beneficial technical effects:

the adjusting bracket is arranged, so that the overlapping area between the first support plate and the second support plate is adjusted, the mounting position of the lightning arrester can be adjusted, in addition, the circumferential position of the lightning arrester can be adjusted by loosening the first connecting bolt, further, the position adjustment of the lightning arrester can be realized, the influence on a power transmission line on the power transmission tower is reduced, and the normal operation of the power transmission tower is ensured;

through the arrangement of the switching round plate, when the insulating support is adjusted, the clamping strips on the bottom surface of the insulating support can be placed in the clamping grooves at different positions, and the insulating support can be prevented from rotating by the matching of the clamping grooves and the clamping strips, so that the stability of the lightning arrester is further ensured;

through setting up the mount pad, take connecting bolt three out from through-hole five and through-hole six, can adjust the circumference angle of support column, further increased the adjustment range of arrester.

Drawings

Fig. 1 is a schematic view of an overall structure of a lightning protection device according to an embodiment of the present invention.

Fig. 2 is an exploded view of a part of the structure of fig. 1, mainly illustrating the construction of the transfer disk.

Fig. 3 is a partial structural view of fig. 1, mainly illustrating the structure of the mounting seat.

Description of reference numerals: 1. a lightning arrester; 2. an insulating support; 21. a third through hole; 22. clamping the strip; 3. adjusting the bracket; 301. connecting a first bolt; 302. a second connecting bolt; 31. a first support plate; 311. a first through hole; 32. a support plate II; 321. a second through hole; 33. a support pillar; 331. a sixth through hole; 34. switching a circular plate; 341. a card slot; 342. a fourth through hole; 35. a mounting seat; 3501. connecting a third bolt; 351. a base plate; 352. a circular tube; 3521. a fifth through hole; 36. a support plate; 361. an inclined plate; 362. a horizontal plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses transmission and distribution lines lightning protection device. Referring to fig. 1, a lightning protection device for power transmission and distribution lines includes a lightning arrester 1, an insulating support 2, and an adjusting support 3. The insulating support 2 is cuboid, one end of the insulating support 2 is fixedly connected with the bottom of the lightning arrester 1, and the height direction of the lightning arrester 1 is vertical to the upper surface and the lower surface of the insulating support 2.

As shown in fig. 2, the adjusting bracket 3 includes a first support plate 31, a second support plate 32, a support pillar 33, a transfer circular plate 34, and a mounting seat 35. The first support plate 31 and the second support plate 32 are both in a strip shape, a plurality of uniformly distributed first through holes 311 are formed in the length direction of the first support plate 31, a plurality of uniformly distributed second through holes 321 are formed in the length direction of the second support plate 32, and the distance between every two adjacent first through holes 311 is consistent with the distance between every two adjacent second through holes 321. The length directions of the first support plate 31, the second support plate 32 and the insulating support 2 are consistent, and the second support plate 32 abuts against the lower surface of the first support plate 31. Two connecting bolts 302 penetrate through the first through hole 311 and the second through hole 321, and the two connecting bolts 302 are respectively located on two sides of the first support plate 31. The total length between the first plate 31 and the second plate 32 can be adjusted by adjusting the overlapping area between the first plate 31 and the second plate 32.

As shown in fig. 1 and 2, the adapting circular plate 34 is welded on the side surface of the first support plate 31 on the side far from the second support plate 32, the adapting circular plate 34 is located at one end of the first support plate 31 close to the insulating support 2, the side surface of the adapting circular plate 34 on the side far from the first support plate 31 is provided with a plurality of clamping grooves 341, the clamping grooves 341 are in a strip shape, the clamping grooves 341 are uniformly distributed along a circle of the adapting circular plate 34, the length direction of each clamping groove 341 penetrates through the circle center of the adapting circular plate 34, the circle center of the adapting circular plate 34 is provided with a fourth through hole 342, the axis of the fourth through hole 342 is collinear with the axis of the first through hole 311 of the first support plate 31 on the side close to the insulating support; in addition, a third through hole 21 is formed in one end, away from the lightning arrester 1, of the insulating support 2, and the first connecting bolt 301 penetrates through the third through hole 21, the fourth through hole 342, and the first through hole 311 of the first support plate 31, which is close to one end of the insulating support 2. The bottom surface of the end, far away from the arrester 1, of the insulating support 2 is integrally formed with three clamping strips 22, the clamping strips 22 are in clearance fit with the clamping grooves 341, and the three clamping strips 22 are integrally formed on the bottom surface of the insulating support 2 along a circle of the transfer circular plate 34. The first connecting bolt 301 is loosened, and the clamping strips 22 on the bottom surface of the insulating bracket 2 are placed in the clamping grooves 341 at different positions, so that the circumferential position of the lightning arrester 1 can be adjusted.

As shown in fig. 1 and 3, the supporting column 33 is a cylinder, the supporting column 33 is perpendicular to the second support plate 32, one end of the supporting column 33 is fixedly connected with the end of the second support plate 32 far away from one end of the insulating support 2, and the other end faces to one side far away from the first support plate 31. Six through holes 331 are formed in the circumferential surface of one end, away from the second support plate 32, of the support column 33, the six through holes 331 are multiple and are uniformly distributed along the circumference of the support column 33, and the six through holes 331 are also uniformly distributed at intervals along the height direction of the support column 33.

As shown in fig. 3, the mounting seat 35 includes a bottom plate 351 and circular pipes 352, the bottom plate 351 is a circular plate, the circular pipes 352 are welded to a side surface of one side of the bottom plate 351, an axis of the circular pipe 352 passes through a circle center of the bottom plate 351, a circle of the bottom plate 351 is bolted to a cross arm of the power transmission tower, through holes five 3521 are formed in a circumferential surface of the circular pipe 352, the through holes five 3521 are multiple and are uniformly distributed along a circle of the circular pipe 352, and the through holes five 3521 are also uniformly distributed at intervals along a height direction of the circular pipe 352. The support column 33 is located in the circular tube 352, the connecting bolts three 3501 penetrate through the through holes five 3521 and six 331, and the connecting bolts three 3501 are two and located at two ends of the circular tube 352 respectively. The third connecting bolt 3501 is drawn out from the fifth through hole 3521 and the sixth through hole 331, so that the circumferential angle of the supporting column 33 can be adjusted, and the adjustment range of the lightning arrester 1 is further increased.

As shown in fig. 1, a supporting plate 36 is disposed between the supporting column 33 and the second support plate 32, the supporting plate 36 includes an inclined plate 361 and a horizontal plate 362 which are integrally formed, one end of the inclined plate 361 is fixedly connected to a side wall of the supporting column 33 near one end of the base, the other end of the inclined plate 361 is integrally formed with one end of the horizontal plate 362, the horizontal plate 362 abuts against a lower surface of the second support plate 32, and the second connecting bolt 302 penetrates through the horizontal plate 362. By utilizing the supporting plate 36, a triangle can be formed among the supporting plate 36, the supporting column 33 and the second supporting plate 32, and the stability between the supporting column 33 and the second supporting plate 32 can be improved because the triangle has good stability.

The implementation principle of the power transmission and distribution line lightning protection device in the embodiment of the application is as follows: when the lightning arrester 1 needs to be adjusted, the overlapping area between the first support plate 31 and the second support plate 32 can be adjusted by loosening the second connecting bolt 302, and then the installation position of the lightning arrester 1 can be adjusted; in addition, the clamping strips 22 on the bottom surface of the insulating bracket 2 are placed in the clamping grooves 341 at different positions, so that the circumferential position of the lightning arrester 1 can be adjusted; further, the third connecting bolt 3501 is pulled out from the fifth through hole 3521 and the sixth through hole 331, the circumferential angle of the supporting column 33 can be adjusted, the adjusting range of the lightning arrester 1 is further increased, and therefore the lightning arrester 1 can be adjusted in position, influences on a power transmission line on the power transmission tower are reduced, and normal operation of the power transmission tower is guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a transmission and distribution lines lightning protection device, includes arrester (1) and rigid coupling in insulating support (2) on arrester (1), its characterized in that: the lightning arrester is characterized in that an adjusting bracket (3) is arranged on the insulating bracket (2), the adjusting bracket (3) comprises a first support plate (31) and a second support plate (32) which are strip-shaped, a plurality of first through holes (311) are uniformly formed in the length direction of the first support plate (31), a plurality of second through holes (321) are uniformly formed in the length direction of the second support plate (32), the distance between every two adjacent first through holes (311) and every two adjacent second through holes (321) is equal, a third through hole (21) is formed in the end part, far away from one end of the lightning arrester (1), of the first support plate (31) is abutted against the insulating bracket (2), a first connecting bolt (301) penetrates through the first through hole (311) and the third through hole (21), and the second support plate (32) is abutted against one side, far away from the insulating bracket (2), of the first support plate (31), and a second connecting bolt (302) penetrates through the first through hole (311) and the third through hole (21) which are far away from one side of the insulating support (2), and one end, far away from the insulating support (2), of the second support plate (32) is fixedly connected with a support column (33) which is perpendicular to the second support plate (32).

2. The lightning protection device for transmission and distribution lines according to claim 1, wherein: support plate one (31) are close to insulating support (2) one end rigid coupling has switching plectane (34), switching plectane (34) are close to insulating support (2) one side is seted up a plurality of edges switching plectane (34) a week evenly distributed's draw-in groove (341), draw-in groove (341) length direction passes the centre of a circle of switching plectane (34), insulating support (2) are close to the one side integrated into one piece of switching plectane (34) have with draw-in groove (341) matched with card strip (22), through-hole four (342) have been seted up to the centre of a circle of switching plectane (34), the axis of through-hole four (342) with the axis collineation of through-hole one (311).

3. The lightning protection device for transmission and distribution lines according to claim 2, wherein: the clamping strips (22) are three, and the clamping strips (22) are integrally formed on the bottom surface of the insulating support (2) along the circle of the switching circular plate (34).

4. The lightning protection device for transmission and distribution lines according to claim 1, wherein: the one end that support column (33) kept away from two (32) of extension boards is provided with mount pad (35), mount pad (35) include bottom plate (351) and pipe (352), pipe (352) perpendicular rigid coupling in on the heart of the lateral wall of one side wherein of bottom plate (351), support column (33) are inserted and are located in pipe (352), follow a week of pipe (352) offer a plurality of evenly distributed's through-hole five (3521), follow a week of support column (33) offer a plurality of evenly distributed's through-hole six (331), wear to be equipped with connecting bolt three (3501) in through-hole five (3521) and through-hole six (331).

5. The lightning protection device for transmission and distribution lines according to claim 4, wherein: the five through holes (3521) are distributed at intervals in the height direction of the supporting column (33), and the six through holes (331) are distributed at intervals in the height direction of the circular tube (352).

6. The lightning protection device for transmission and distribution lines according to claim 5, wherein: the number of the connecting bolts III (3501) is two.

7. The lightning protection device for transmission and distribution lines according to claim 1, wherein: and a supporting plate (36) is arranged between the supporting column (33) and the second support plate (32).

8. The lightning protection device for transmission and distribution lines according to claim 7, wherein: the supporting plate (36) comprises an integrally formed inclined plate (361) and a horizontal plate (362), one end of the inclined plate (361) is fixedly connected with the side wall of the supporting column (33), the other end of the inclined plate is integrally formed with one end of the horizontal plate (362), and the second connecting bolt (302) penetrates through the horizontal plate (362).