CN217362532U

CN217362532U - Power transmission tower lightning arrester for power system

Info

Publication number: CN217362532U
Application number: CN202221085464.3U
Authority: CN
Inventors: 李宏杰; 王嘉梅
Original assignee: Yunnan Minzu University
Current assignee: Yunnan Minzu University
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-09-02
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses an electric power system is with steel pylons lightning arrester, including upper end open-ended base, the base internal rotation is connected with the pivot, the intermediate position of pivot outer wall upwards is provided with fixed cover, fixed cover can be dismantled and be connected with the bracing piece, the upper end of bracing piece is provided with the arrester, the equal threaded connection in the left and right sides of fixed cover outer wall has first threaded rod, the bottom of base outer wall is rotated and is connected with the connecting rod, the one end that the base was kept away from to each connecting rod is all rotated and is connected with the fixing base, one side of base is provided with earthing device, be connected through the downlead between earthing device and the pivot, the below of base outer wall is provided with a plurality of stationary blades, each connecting rod outer wall all rotates and is connected with the third threaded rod. The utility model discloses not only install and dismantle convenient and fast, and be applicable to and install at the top of different iron towers, improve its suitability, can not be because of too big rupture lightning rod of wind-force, also be convenient for overhaul downlead and earthing device alone.

Description

Power transmission tower lightning arrester for power system

Technical Field

The utility model relates to a lightning arrester technical field, in particular to transmission tower lightning arrester for electric power system.

Background

The transmission tower is a supporting point of an overhead line, and because the transmission tower is high in height, in order to avoid lightning stroke, the transformer substation is provided with the lightning arrester which is a main measure for protecting direct lightning stroke, and the lightning arrester attracts the lightning to the body of the transformer substation and is safely led into the ground, so that electrical equipment and buildings are protected from lightning stroke.

However, the existing lightning arrester is inconvenient to independently overhaul the grounding cable and the grounding device, cannot be quickly installed and disassembled, is not suitable for being installed at the tops of different iron towers, is low in applicability, does not have a buffering effect, and can be broken if wind power is too large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric power iron tower lightning arrester for electric power system not only installs and dismantles convenient and fast, and is applicable to the top of installing at different iron towers, improves its suitability, can not be because of too big rupture lightning rod of wind-force, also be convenient for overhaul downlead and earthing device alone.

The above technical object of the present invention can be achieved by the following technical solutions:

a power transmission tower lightning arrester for an electric power system comprises a base with an opening at the upper end, a rotating shaft is rotatably connected between the left side and the right side of the inner wall of the base, torsion springs sleeved on the rotating shaft are respectively connected between the left end and the right end of the outer wall of the rotating shaft and the inner wall of one side corresponding to the base, a hollow fixing sleeve is upwards arranged in the middle position of the outer wall of the rotating shaft, the fixing sleeve is detachably connected with a supporting rod matched with the fixing sleeve, a lightning receptor is arranged at the upper end of the supporting rod, a first lightning-protection needle body is vertically and upwards arranged at the upper end of the outer wall of the lightning receptor, arc-shaped clamping pieces matched and fixed with the supporting rod are respectively arranged between the lower end of the outer wall of the supporting rod and the left side and the right side of the inner wall of the fixing sleeve, a plurality of first threaded rods which extend into the fixing sleeve and are connected with the corresponding arc-shaped clamping pieces and can rotate are respectively in threaded connection with the left side and the outer wall of the fixing sleeve, the opening end of the base is covered with a cover plate matched with the base;

the bottom of the outer wall of the base is rotatably connected with a plurality of connecting rods which can rotate up and down and are detachably connected with the base, one end of each connecting rod, far away from the base, is rotatably connected with a fixed seat which can rotate up and down, each connecting rod is fixedly connected with the base and the fixed seat through a second threaded rod in a threaded manner, one side of the base is provided with a grounding device, the grounding device is connected with the rotating shaft through a down lead, the downlead with earthing device reaches all detachable connection between the pivot, the below of base outer wall be provided with a plurality ofly with the stationary blade of connecting rod one-to-one, the sliding hole has all been seted up downwards to the upper end of each stationary blade, and each connecting rod outer wall is close to the position of base is all rotated and is connected with but the tilting and passes corresponding sliding hole cooperation fixed the third threaded rod of connecting rod, the outer wall of each third threaded rod has fixation nut in the equal threaded connection in upper and lower both ends that corresponds the stationary blade.

By adopting the technical scheme, when in use, the fixing seat is fixedly arranged at the top of the iron tower, the base is connected with the fixing seat through the connecting rod and is preliminarily fixed through the second threaded rod, when preliminary fixing is carried out, the third threaded rod penetrates through the sliding hole on the corresponding fixing piece, then the connecting rod is rotated according to actual installation conditions to adjust the distance between the base and the iron tower, the second threaded rod is rotated again to firmly connect the connecting rod with the base and the fixing seat, the third threaded rod is fixed on the fixing piece through the fixing nut to prevent the connecting rod from shaking, the supporting rod is inserted into the fixing sleeve, the first threaded rod is rotated, the supporting rod is fixed through the matching of the two arc-shaped clamping pieces, and after all fixing is finished, the grounding device and the rotating shaft are connected through the down lead and the grounding device is buried underground;

rainy weather, the arrester on the bracing piece leads the thunder and lightning to the arrester through first lightning-arrest needle body, the thunder and lightning that connects the down conductor passes through the down conductor and conducts the thunder and lightning to burying underground earthing device, with this influence of thunder and lightning to the electric wire netting is eliminated, if meet strong wind weather, wind-force is great, the arrester can drive the pivot through the bracing piece and rotate, with this rigid force of offsetting wind-force to first lightning-arrest needle body and bracing piece, because both ends all are provided with torsion spring about the pivot, therefore wind-force can not only restore to the throne the pivot voluntarily when less, can also let the bracing piece have certain cushioning effect, avoid being destroyed by wind-force rigidity, the cover plate can prevent that other things from falling into the normal work of influence pivot in the base, when overhauing down conductor or earthing device, only need to dismantle the down conductor from pivot or earthing device and can overhaul.

The utility model discloses a further set up to: the outer wall of the lightning arrester is obliquely upwards and outwards provided with a plurality of second lightning protection needle bodies which are distributed at equal intervals on the circumference, and the periphery of the first lightning protection needle bodies is provided with a plurality of second lightning protection needle bodies.

Through adopting above-mentioned technical scheme, the lightning-arrest needle body of second can connect the thunder and lightning that can not draw first lightning-arrest needle body in time to connect and draw, avoids the thunder and lightning to cause the damage to the electric wire netting circuit.

The utility model discloses a further set up to: a plurality of drain holes distributed in an array form are formed in the bottom of the inner wall of the base from bottom to top.

Through adopting above-mentioned technical scheme, avoid the interior ponding of base.

The utility model discloses a further set up to: and tension springs are connected between the left side and the right side of the opening end of the base and the outer wall of one side, corresponding to the fixed sleeve, of the base.

Through adopting above-mentioned technical scheme, tension spring can not only guarantee that the bracing piece is in upright state constantly, can also strengthen the buffer capacity of bracing piece and let it in time reset.

Compared with the prior art, the utility model discloses following beneficial effect has:

one, the utility model is convenient and fast to install and disassemble, is suitable for being installed at the tops of different iron towers, and has strong applicability;

secondly, the torsion spring and the rotating shaft of the utility model not only can avoid the damage to the support rod, the first lightning rod body and the second lightning rod body caused by overlarge induced wind force, but also can lead the support rod to automatically reset in time;

thirdly, the utility model discloses can dismantle the downlead of connection and be convenient for overhaul alone and change arrester and earthing device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is mainly used for showing the positional connection relationship of the components.

In the figure: 1. a base; 11. a drain hole; 12. a cover sheet; 13. a rotating shaft; 14. a torsion spring; 15. fixing a sleeve; 16. an arc-shaped clamping piece; 17. a first threaded rod; 18. a tension spring; 19. a fixing sheet; 2. a slide hole; 21. a support bar; 22. a lightning receptor; 23. a first lightning rod body; 24. a second lightning rod body; 25. a connecting rod; 26. a fixed seat; 27. a second threaded rod; 28. a third threaded rod; 29. fixing a nut; 3. a grounding device; 31. and leading the wire down.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment, referring to fig. 1-2, a lightning arrester of power transmission tower for electric power system comprises a base 1 with an opening at the upper end, a rotating shaft 13 is rotatably connected between the left and right sides of the inner wall of the base 1, a torsion spring 14 externally sleeved on the rotating shaft 13 is respectively connected between the left and right ends of the outer wall of the rotating shaft 13 and the inner wall of the corresponding side of the base 1, a fixing sleeve 15 with a hollow inner part is upwards arranged at the middle position of the outer wall of the rotating shaft 13, the fixing sleeve 15 is detachably connected with a supporting rod 21 matched with the fixing sleeve 15, a lightning receptor 22 is arranged at the upper end of the supporting rod 21, a first lightning protection needle body 23 is vertically upwards arranged at the upper end of the outer wall of the lightning receptor 22, an arc clamping piece 16 matched with the supporting rod 21 is respectively arranged between the lower end of the outer wall of the supporting rod 21 and the left and right sides of the inner wall of the fixing sleeve 15, two first threaded rods 17 which extend into the inner part and are connected with the corresponding arc clamping pieces 16 and can rotate are in threaded connection with each other, the open end of the base 1 is covered with a cover plate 12 for cooperation therewith.

The bottom of the outer wall of the base 1 is rotatably connected with four connecting rods 25 which can rotate up and down and are detachably connected with the base, one end of each connecting rod 25, which is far away from the base 1, is rotatably connected with a fixed seat 26 which can rotate up and down, each connecting rod 25 is fixedly connected with the base 1 and the fixed seat 26 through a second threaded rod 27 in a threaded manner, one side of the base 1 is provided with a grounding device 3, the grounding device 3 is connected with a rotating shaft 13 through a down-lead 31, the down-lead 31 is detachably connected with the grounding device 3 and the rotating shaft 13, four fixing pieces 19 which correspond to the connecting rods 25 one by one are arranged below the outer wall of the base 1, the upper end of each fixing piece 19 is provided with a sliding hole 2 downwards, the position, which is close to the base 1, of the outer wall of each connecting rod 25 is rotatably connected with a third threaded rod 28 which can rotate up and down and passes through the corresponding sliding hole 2 to be matched with the fixed connecting rod 25, the outer wall of each third threaded rod 28 is threadedly connected with a fixing nut 29 corresponding to the upper and lower ends of the fixing piece 19.

The outer wall of the lightning receptor 22 is provided with four second lightning rod bodies 24 which are distributed at equal intervals on the circumference of the first lightning rod body 23 in an upward and outward inclined manner, the bottom of the inner wall of the base 1 is provided with a plurality of drain holes 11 which are distributed in an array manner downwards, and a tension spring 18 is connected between the left side and the right side of the opening end of the base 1 and the outer wall of one side corresponding to the fixed sleeve 15.

The use method comprises the following steps: during the use, fixing base 26 fixed mounting is at the top of iron tower earlier, be connected base 1 and fixing base 26 through connecting rod 25 and fix it through second threaded rod 27 preliminarily, when preliminarily fixing, first pass third threaded rod 28 and correspond slide opening 2 on stationary blade 19, then rotate the distance between connecting rod 25 adjustment base 1 and the iron tower according to the actual installation condition, rotate second threaded rod 27 once more with connecting rod 25 and base 1 and fixing base 26 firm in connection, fix third threaded rod 28 on stationary blade 19 through fixation nut 29 and prevent that connecting rod 25 from rocking, inject fixed cover 15 with bracing piece 21, rotate first threaded rod 17, it is fixed with bracing piece 21 through the cooperation of two arc clamping pieces 16, after whole fixed completions, be connected and bury earthing device 3 underground through downlead 31 between earthing device 3 and pivot 13.

In rainy days, the lightning receptor 22 on the support rod 21 leads the lightning to the lightning receptor 22 through the first lightning conductor body 23, the led lightning conducts the lightning to the grounding device 3 buried underground through the down lead 31, so as to eliminate the influence of the lightning on the power grid, the second lightning conductor body 24 can lead the lightning which can not be led by the first lightning conductor body 23, the influence of the lightning on the power grid line is reduced, if the weather is strong wind power is generated, the lightning receptor 22 can drive the rotating shaft 13 to rotate through the support rod 21, so as to offset the rigid acting force of the wind power on the first lightning conductor body 23, the second lightning conductor body 24 and the support rod 21, because the torsion springs 14 are arranged at the left end and the right end of the rotating shaft 13, the rotating shaft 13 can be automatically reset when the wind power is small, the tension spring 18 can also enable the support rod 21 to have a certain buffering effect, the swing amplitude is prevented from being too large, and the rigid damage caused by the wind power is avoided, the cover plate 12 can prevent other things from falling into the base 1 to influence the normal work of the rotating shaft 13, the drain holes 11 can discharge rainwater in the base 1 in time, water accumulation in the base 1 is avoided, and when the downlead 31 or the grounding device 3 is overhauled, the downlead 31 can be overhauled only by detaching the downlead 31 from the rotating shaft 13 or the grounding device 3.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an iron tower lightning arrester for electric power system, includes upper end open-ended base (1), its characterized in that: rotate between the left and right sides of base (1) inner wall and be connected with pivot (13), pivot (13) outer wall both ends about with base (1) correspond all be connected with between the inner wall of one side overcoat in torsion spring (14) of pivot (13), the intermediate position of pivot (13) outer wall upwards is provided with inside hollow fixed cover (15), fixed cover (15) can be dismantled and be connected with complex bracing piece (21) with it, the upper end of bracing piece (21) is provided with lightning arrester (22), the vertical upwards being provided with first lightning-arrest needle body (23) of upper end of lightning arrester (22) outer wall, the lower extreme of bracing piece (21) outer wall with it is fixed all to be provided with the cooperation between the left and right sides of fixed cover (15) inner wall arc clamping piece (16) of bracing piece (21), the equal threaded connection in the left and right sides of fixed cover (15) outer wall has a plurality ofly to stretch its inside and with correspond arc clamping piece (16) and be connected and can change to and turn to The opening end of the base (1) is covered with a cover plate (12) matched with the base for use;

the bottom of the outer wall of the base (1) is rotatably connected with a plurality of connecting rods (25) which can rotate up and down and can be detachably connected with the outer wall, one end, far away from the base (1), of each connecting rod (25) is rotatably connected with a fixing seat (26) which can rotate up and down, each connecting rod (25) is fixedly connected with the base (1) and the fixing seat (26) through a second threaded rod (27) in a threaded manner, one side of the base (1) is provided with a grounding device (3), the grounding device (3) is connected with the rotating shaft (13) through a down-lead wire (31), the down-lead wire (31) is detachably connected with the grounding device (3) and the rotating shaft (13), a plurality of fixing pieces (19) which correspond to the connecting rods (25) one by one are arranged below the outer wall of the base (1), and the upper end of each fixing piece (19) is downwards provided with a sliding hole (2), the outer wall of each connecting rod (25) is close to the position of the base (1) is rotationally connected with a third threaded rod (28) which can rotate up and down and passes through the corresponding sliding hole (2) to be matched and fixed with the connecting rod (25), and the outer wall of each third threaded rod (28) is connected with a fixing nut (29) in a threaded mode at the upper end and the lower end of the corresponding fixing piece (19).

2. The power transmission tower lightning protection device for the power system according to claim 1, wherein: the outer wall of the lightning receptor (22) is obliquely upwards and outwards provided with a plurality of second lightning conductor bodies (24) which are distributed at equal intervals on the circumference of the first lightning conductor body (23).

3. The power transmission tower lightning arrester device for the power system according to claim 1, characterized in that: a plurality of water drainage holes (11) distributed in an array form are formed downwards at the bottom of the inner wall of the base (1).

4. The power transmission tower lightning protection device for the power system according to claim 1, wherein: and tension springs (18) are connected between the left side and the right side of the opening end of the base (1) and the outer wall of the corresponding side of the fixed sleeve (15).