Lightning arrester for overhead transmission line for suppressing overvoltage

Abstract

The application provides an overhead transmission line lightning protection device for inhibiting overload voltage, and relates to the field of lightning protection devices, which comprises a fixing mechanism, a mounting mechanism, a lightning protection mechanism and a driving mechanism; the mounting mechanism is mounted on the top of the fixing mechanism; the pushing mechanism is mounted on the top of the fixing mechanism and is located below the mounting mechanism; the lightning protection mechanism is mounted on the top of the mounting mechanism; the limiting mechanism is mounted on the top of the lightning protection mechanism; the driving mechanism is mounted on the lightning protection mechanism; the mounting block is fixedly mounted on the top of the fixing seat; the rotating disc is rotatably mounted on the outer wall of the mounting block and the bottom of the rotating disc is in contact with the fixing seat; the lightning rod can move upward, so that the steel wire rope is always in a tensioned state, a good reinforcing effect is achieved, and the lightning rod is prevented from being bent in windy weather; the problem that the lightning rod cannot be reinforced and is unstable during use is solved.

Description

Technical Field

[0001] This invention relates to the field of lightning protection devices, and in particular to a lightning protection device for overhead transmission lines that suppresses overload voltage. Background Technology

[0002] Lightning protection devices are used to guide lightning to the ground to prevent buildings or people from being struck by electricity. Lightning protection devices include lightning rods, which are usually made of metal, are relatively long and heavy, and need to be erected and fixed to the ground during installation.

[0003] For example, patent application number CN201721066024.2 discloses a lightning protection device, including a pin assembly. The pin assembly includes two or more cylindrical conductors that are nested together, an upper limit block fixedly connected to one end of the conductors and abutting against the end face of the conductors after the conductors move relative to each other along the axial direction, and a limiting component connected to the nested ends of the conductors and abutting against each other before the conductors separate to prevent them from separating along the axial direction. The upper limit block abuts against the primary pin assembly before the secondary pin assembly slides into the primary pin assembly. The limiting component includes a first lower limit block fixedly connected to the end of the primary pin assembly near the secondary pin assembly by a connector, and a second lower limit block is provided on the outer cylindrical surface of the secondary pin assembly near the end of the primary pin assembly.

[0004] Based on the above, the inventors have discovered that current lightning protection devices do not have the ability to move slightly when encountering strong winds, which makes the lightning rods prone to bending and cannot reinforce them, resulting in insufficient stability of the lightning rods during use. Summary of the Invention

[0005] In view of this, the present invention provides a lightning protection device for overhead transmission lines to suppress overload voltage, which has a fixing mechanism, an installation mechanism, a lightning protection mechanism and a driving mechanism; the rotating disk can automatically rotate with the wind direction; the mounting base has a slight movement function to prevent the lightning protection base from bending; the lightning rod can move upward to ensure that the wire rope is always in a taut state, which plays a good reinforcement role and prevents the lightning rod from bending in windy weather.

[0006] The present invention provides a lightning protection device for suppressing overload voltage for overhead transmission lines, which includes: a fixing mechanism, an installation mechanism, a pushing mechanism, a lightning protection mechanism, a limiting mechanism, and a driving mechanism.

[0007] The installation mechanism is installed on top of the fixing mechanism; the pushing mechanism is installed on top of the fixing mechanism and is located below the installation mechanism; the lightning protection mechanism is installed on top of the installation mechanism; the drive mechanism is installed on the lightning protection mechanism.

[0008] The fixing mechanism includes: a fixing base, fixing blocks, fixing holes, mounting blocks, and a rotating disk; the fixing base is a circular structure; there are four fixing blocks, which are fixedly installed on the outer wall of the fixing base, and fixing holes are provided on the four fixing blocks; the mounting blocks are fixedly installed on the top of the fixing base; the rotating disk is rotatably installed on the outer wall of the mounting block, and the bottom of the rotating disk is in contact with the fixing base.

[0009] Furthermore, the lightning protection mechanism includes: a lightning arrester base, a stabilizing plate, a lightning rod, an anti-shifting groove, and a steel wire rope; the lightning arrester base is fixedly connected to the installation mechanism; the stabilizing plate is fixedly installed on the outer wall of the lightning arrester base; the lightning rod is slidably installed inside the lightning arrester base, and an anti-shifting groove is provided on the front side of the lightning rod; both ends of the steel wire rope are fixedly installed on the top of the stabilizing plate, and the middle part of the steel wire rope is threaded through the lightning rod.

[0010] Furthermore, the mounting mechanism includes: mounting plates and mounting rods; there are two mounting plates, and the two mounting plates are fixedly connected to the rotating disk; there are two mounting rods, and the two mounting rods are fixedly installed on the inner side of the two mounting plates.

[0011] Furthermore, the lightning protection mechanism also includes: a reset plate, guide shafts, limiting rings B, and reset springs C; the reset plate is fixedly installed on the outer wall of the lightning rod; there are two guide shafts, which are fixedly installed on the top of the stabilizing plate and slidably connected to the reset plate; there are two limiting rings B, which are respectively fixedly installed on the outer walls of the two guide shafts, and the reset plate is located between the stabilizing plate and the limiting rings B; there are two reset springs C, which are respectively installed outside the two guide shafts and are located between the stabilizing plate and the reset plate, so that the lightning rod can move upward and ensure that the wire rope is always taut.

[0012] Furthermore, the mounting mechanism also includes: a mounting base, a reset groove, and a reset spring A; the mounting base is slidably mounted on the outer wall of the two mounting rods, and a reset groove is provided at the bottom of the mounting base; there are a total of four reset springs A, and the four reset springs A are mounted on the outside of the two mounting rods, and the four reset springs A are located between the mounting base and the two mounting plates.

[0013] Furthermore, the limiting mechanism includes: a limiting seat, a guide rod, and a limiting block; the limiting seat is fixedly installed on the top of the stabilizing plate; the guide rod is slidably installed on the limiting seat, and the cross-section of the guide rod is octagonal; the limiting block is fixedly installed on the rear side of the guide rod, and the limiting block is in contact with the anti-slip groove.

[0014] Furthermore, the pushing mechanism includes a pushing frame and a pushing rod; the pushing frame is fixedly connected to the rotating disk; the pushing rod is slidably mounted on the pushing frame, and the top of the pushing rod has a hemispherical structure, and the top of the pushing rod is tangent to the reset groove.

[0015] Furthermore, the limiting mechanism also includes: a return spring D and a pull block; the return spring D is installed outside the guide rod and is located between the limiting seat and the limiting block; the pull block is fixedly installed on the front side of the guide rod.

[0016] Furthermore, the pushing mechanism also includes: a limiting ring A and a return spring B; the limiting ring A is fixedly installed on the outer wall of the pushing rod; the return spring B is installed on the outside of the pushing rod, and the return spring B is located between the rotating disk and the limiting ring A.

[0017] Furthermore, the drive mechanism includes: a drive shaft, an arrow, and a tail fin; the middle part of the drive shaft is fixedly installed inside the lightning arrester; the arrow is fixedly installed at the left end of the drive shaft; and the tail fin is fixedly installed at the right end of the drive shaft. Beneficial effects

[0018] 1. In this invention, the arrow is fixedly installed on the left side of the drive shaft, the tail fin is fixedly installed on the right side of the drive shaft, and the rotating disk is rotatably installed on the outer wall of the mounting block, so that the rotating disk can automatically rotate with the wind direction.

[0019] 2. In this invention, the mounting base is slidably mounted on the outer wall of the two mounting rods, and four return springs A are mounted on the outside of the two mounting rods and located between the mounting base and the two mounting plates. This allows the mounting base to have a slight movement function, preventing the lightning arrester from bending. Furthermore, because the bottom of the mounting base is provided with a reset groove, and the push rod is slidably mounted on the push frame and tangent to the reset groove, the mounting base is reset, making it more stable when used in windless weather.

[0020] 3. In this invention, the lightning rod is slidably installed inside the lightning arrester base, and two return springs C are installed outside the two guide shafts. The two return springs C are located between the stabilizing plate and the return plate, which allows the lightning rod to move upward, ensuring that the wire rope is always taut and achieving a good reinforcement effect. This prevents the lightning rod from bending in strong winds. Furthermore, because the front side of the lightning rod is provided with an anti-shifting groove, and the limiting block is fixedly installed on the rear side of the guide rod, and the limiting block contacts the anti-shifting groove, it limits the movement of the lightning rod, allowing it to move only upward. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0023] In the attached diagram:

[0024] Figure 1 A three-dimensional structural schematic diagram according to an embodiment of the present invention is shown;

[0025] Figure 2 It shows Figure 1 A schematic diagram of the structure from the perspective of the viewpoint;

[0026] Figure 3 A schematic diagram of the fixing mechanism structure according to an embodiment of the present invention is shown;

[0027] Figure 4 A schematic diagram of the rotating disk and mounting mechanism according to an embodiment of the present invention is shown;

[0028] Figure 5 It shows Figure 2 A magnified schematic diagram of a portion of region A in the middle;

[0029] Figure 6 A schematic diagram of the center section structure of the lightning protection mechanism according to an embodiment of the present invention is shown;

[0030] Figure 7 It shows Figure 1 A magnified schematic diagram of a portion of region B in the middle;

[0031] Figure 8 It shows Figure 1 A magnified schematic diagram of a portion of region B in the middle;

[0032] Figure 9 A schematic diagram of the lightning arrester base and drive mechanism according to an embodiment of the present invention is shown.

[0033] List of reference numerals

[0034] 1. Fixing mechanism; 101. Fixing base; 102. Fixing block; 1021. Fixing hole; 103. Mounting block; 104. Rotating disk; 2. Mounting mechanism; 201. Mounting plate; 202. Mounting rod; 203. Mounting base; 2031. Reset groove; 204. Reset spring A; 3. Pushing mechanism; 301. Pushing frame; 302. Pushing rod; 303. Limiting ring A; 304. Reset spring B; 4. Lightning protection mechanism; 401 402. Lightning arrester base; 403. Stabilizing plate; 404. Lightning rod; 405. Anti-shifting groove; 406. Steel wire rope; 407. Reset plate; 408. Guide shaft; 409. Limiting ring B; 4000. Reset spring C; 500. Limiting mechanism; 501. Limiting seat; 502. Guide rod; 503. Limiting block; 504. Reset spring D; 505. Pull block; 600. Drive mechanism; 601. Drive shaft; 602. Arrow; 603. Tail wing. Detailed Implementation

[0035] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0036] Example: Please refer to Figures 1 to 9 As shown:

[0037] The present invention provides a lightning protection device for suppressing overload voltage for overhead transmission lines, comprising a fixing mechanism 1, an installation mechanism 2, a pushing mechanism 3, a lightning protection mechanism 4, a limiting mechanism 5, and a driving mechanism 6;

[0038] The mounting mechanism 2 is mounted on top of the fixing mechanism 1; the pushing mechanism 3 is mounted on top of the fixing mechanism 1 and is located below the mounting mechanism 2; the lightning protection mechanism 4 is mounted on top of the mounting mechanism 2; and the driving mechanism 6 is mounted on the lightning protection mechanism 4.

[0039] The fixing mechanism 1 includes: a fixing base 101, fixing blocks 102, fixing holes 1021, mounting blocks 103, and a rotating disk 104; the fixing base 101 has a circular structure; four fixing blocks 102 are provided, and the four fixing blocks 102 are fixedly installed on the outer wall of the fixing base 101, and fixing holes 1021 are provided on the four fixing blocks 102; the mounting blocks 103 are fixedly installed on the top of the fixing base 101; the rotating disk 104 is rotatably installed on the outer wall of the mounting blocks 103, and the bottom of the rotating disk 104 contacts the fixing base 101, driving... Mechanism 6 includes: a drive shaft 601, an arrow 602, and a tail fin 603; the middle part of the drive shaft 601 is fixedly installed inside the lightning arrester 401; the arrow 602 is fixedly installed on the left end of the drive shaft 601; the tail fin 603 is fixedly installed on the right end of the drive shaft 601. Its specific function is: because the arrow 602 is fixedly installed on the left side of the drive shaft 601, and the tail fin 603 is fixedly installed on the right side of the drive shaft 601, and the rotating disk 104 is rotatably installed on the outer wall of the mounting block 103, the rotating disk 104 can automatically rotate with the wind direction.

[0040] The installation mechanism 2 includes: two mounting plates 201 and two mounting rods 202; two mounting plates 201 are provided, and the two mounting plates 201 are fixedly connected to the rotating disk 104; two mounting rods 202 are provided, and the two mounting rods 202 are fixedly installed between the two mounting plates 201; the installation mechanism 2 also includes: a mounting base 203, a reset groove 2031, and a reset spring A204; the mounting base 203 is slidably installed on the outer wall of the two mounting rods 202, and a reset groove is provided at the bottom of the mounting base 203. The groove 2031; four return springs A204 are provided in total, and two return springs A204 are fitted on the outside of each mounting rod 202. The four return springs A204 are located between the mounting base 203 and the corresponding mounting plate 201. The pushing mechanism 3 includes: a pushing frame 301 and a pushing rod 302; the pushing frame 301 is fixedly connected to the rotating disk 104; the pushing rod 302 is slidably mounted on the pushing frame 301, and the top of the pushing rod 302 is a hemispherical structure, and the top of the pushing rod 302 is connected to the return spring 203. The positioning groove 2031 is tangent; the pushing mechanism 3 also includes: a limiting ring A303 and a return spring B304; the limiting ring A303 is fixedly installed on the outer wall of the pushing rod 302; the return spring B304 is installed on the outside of the pushing rod 302, and the return spring B304 is located between the rotating disk 104 and the limiting ring A303. Its specific function is: because the mounting base 203 is slidably installed on the outer wall of the two mounting rods 202, and the four return springs A204 are installed on the outside of the two mounting rods 202, and Furthermore, the four reset springs A204 are located between the mounting base 203 and the two mounting plates 201, which enables the mounting base 203 to have a slight movement function, preventing the lightning arrester base 401 from bending. Also, because the bottom of the mounting base 203 is provided with a reset groove 2031, and the push rod 302 is slidably mounted on the push frame 301 and is tangent to the reset groove 2031, the mounting base 203 is reset, making the mounting base 203 more stable when used in windless weather.

[0041] The lightning protection mechanism 4 includes: a lightning arrester base 401, a stabilizing plate 402, a lightning rod 403, an anti-shifting groove 4031, and a steel wire rope 404; the lightning arrester base 401 is fixedly connected to the mounting base 203; the stabilizing plate 402 is fixedly installed on the outer wall of the lightning arrester base 401; the lightning rod 403 is slidably installed inside the lightning arrester base 401, and an anti-shifting groove 4031 is provided on the front side of the lightning rod 403; both ends of the steel wire rope 404 are fixedly installed on the top of the stabilizing plate 402, and the middle part of the steel wire rope 404 passes through the lightning rod 403; the lightning protection mechanism 4 also includes: a reset plate 405, a guide shaft 406, a limiting ring B407, and a reset spring C408; the reset plate 405 is fixedly installed On the outer wall of the lightning rod 403; two guide shafts 406 are provided, and the two guide shafts 406 are fixedly installed on the top of the stabilizing plate 402, and the two guide shafts 406 are slidably connected to the reset plate 405; two limiting rings B407 are provided, and the two limiting rings B407 are respectively fixedly installed on the outer wall of the two guide shafts 406, and the reset plate 405 is located between the stabilizing plate 402 and the limiting rings B407; two reset springs C408 are provided, and the two reset springs C408 are respectively installed on the outside of the two guide shafts 406, and the two reset springs C408 are located between the stabilizing plate 402 and the reset plate 405. The limiting mechanism 5 includes: a limiting seat 501. The limiting mechanism 5 includes: a guide rod 502 and a limiting block 503; a limiting seat 501 is fixedly installed on the top of the stabilizing plate 402; the guide rod 502 is slidably installed on the limiting seat 501, and the cross-section of the guide rod 502 is octagonal; the limiting block 503 is fixedly installed on the rear side of the guide rod 502, and the limiting block 503 contacts the anti-shifting groove 4031; the limiting mechanism 5 also includes: a return spring D504 and a pull block 505; the return spring D504 is installed on the outside of the guide rod 502, and the return spring D504 is located between the limiting seat 501 and the limiting block 503; the pull block 505 is fixedly installed on the front side of the guide rod 502, and its specific function is: because the lightning rod 403 is slidably installed on the lightning rod 402, ... limiting mechanism 5 also includes: a return spring D504 and a pull block 505; the limiting mechanism 5 also includes: a return spring D504 and a pull block 505; the limiting mechanism 5 also includes: a return spring D504 and a pull block 505; the limiting mechanism 5 also includes: a return spring D504 and a pull block 50 Inside the base 401, two return springs C408 are installed outside the two guide shafts 406, and the two return springs C408 are located between the stabilizing plate 402 and the return plate 405, so that the lightning rod 403 can move upward, ensuring that the wire rope 404 is always in a taut state, preventing the lightning rod 403 from bending in strong winds, and achieving a good reinforcement effect. In addition, because the front side of the lightning rod 403 is provided with an anti-shift groove 4031, and the limiting block 503 is fixedly installed on the rear side of the guide rod 502, and the limiting block 503 contacts the anti-shift groove 4031, it plays a limiting role on the lightning rod 403, so that the lightning rod 403 can only move upward.

[0042] The specific usage and function of this embodiment: In this invention, the operator first installs four fixing blocks 102 in appropriate positions using bolts; because the arrow 602 is fixedly installed on the left side of the drive shaft 601, and the tail fin 603 is fixedly installed on the right side of the drive shaft 601, and the rotating disk 104 is rotatably installed on the outer wall of the mounting block 103, the rotating disk 104 can automatically rotate with the wind direction; because the mounting base 203 is slidably installed on the outer wall of the two mounting rods 202, and four return springs A204 are installed on the outside of the two mounting rods 202, and the four return springs A204 are located between the mounting base 203 and the two mounting plates 201, the mounting base 203 has a slight movement function, preventing the lightning arrester 401 from bending; and because the bottom of the mounting base 203 is provided with a return groove 2031, and the push rod 302 is slidably installed on the push frame 301, the push rod... 302 is tangent to the reset groove 2031, thus resetting the mounting base 203 and making it more stable when used in windless weather. Because the lightning rod 403 is slidably installed inside the lightning arrester base 401, and the two reset springs C408 are installed outside the two guide shafts 406, and the two reset springs C408 are located between the stabilizing plate 402 and the reset plate 405, the lightning rod 403 can move upward, ensuring that the wire rope 404 is always taut, preventing the lightning rod 403 from bending in windy weather, and achieving a good reinforcement effect. Furthermore, because the front side of the lightning rod 403 is provided with an anti-shift groove 4031, and the limiting block 503 is fixedly installed on the rear side of the guide rod 502, and the limiting block 503 is in contact with the anti-shift groove 4031, it limits the movement of the lightning rod 403, allowing it to move only upward.

[0043] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A lightning arrester for overhead transmission lines that suppresses overload voltage, characterized in that, include: Fixed mechanism (1), installation mechanism (2), pushing mechanism (3), lightning protection mechanism (4), limit mechanism (5) and driving mechanism (6); The installation mechanism (2) is installed on top of the fixing mechanism (1); the pushing mechanism (3) is installed on top of the fixing mechanism (1) and is located below the installation mechanism (2); the lightning protection mechanism (4) is installed on top of the installation mechanism (2); the driving mechanism (6) is installed on the lightning protection mechanism (4); The fixing mechanism (1) includes: a fixing base (101), a fixing block (102), a fixing hole (1021), a mounting block (103), and a rotating disk (104); the fixing base (101) is a circular structure; there are four fixing blocks (102), and the four fixing blocks (102) are fixedly installed on the outer wall of the fixing base (101), and the four fixing blocks (102) are provided with fixing holes (1021); the mounting block (103) is fixedly installed on the top of the fixing base (101); the rotating disk (104) is rotatably installed on the outer wall of the mounting block (103), and the bottom of the rotating disk (104) is in contact with the fixing base (101); The lightning protection mechanism (4) includes: a lightning arrester base (401), a stabilizing plate (402), a lightning rod (403), an anti-movement groove (4031), and a steel wire rope (404); the lightning arrester base (401) is fixedly connected to the installation mechanism; the stabilizing plate (402) is fixedly installed on the outer wall of the lightning arrester base (401); the lightning rod (403) is slidably installed inside the lightning arrester base (401), and an anti-movement groove (4031) is provided on the front side of the lightning rod (403); both ends of the steel wire rope (404) are fixedly installed on the top of the stabilizing plate (402), and the middle part of the steel wire rope (404) is threaded through the lightning rod (403); The lightning protection mechanism (4) further includes: a reset plate (405), a guide shaft (406), a limiting ring B (407), and a reset spring C (408); the reset plate (405) is fixedly installed on the outer wall of the lightning rod (403); there are two guide shafts (406), and the two guide shafts (406) are fixedly installed on the top of the stabilizing plate (402), and the two guide shafts (406) are slidably connected to the reset plate (405); there are two limiting rings B (407), and the two limiting rings B (408) are slidably connected to the reset plate (405). 7) The reset plate (405) is fixedly installed on the outer wall of the two guide shafts (406) respectively. The reset plate (405) is located between the stabilizing plate (402) and the limiting ring B (407). There are two reset springs C (408), and the two reset springs C (408) are respectively installed on the outside of the two guide shafts (406). The two reset springs C (408) are located between the stabilizing plate (402) and the reset plate (405), so that the lightning rod (403) can move upward and ensure that the wire rope (404) is always in a taut state.

2. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 1, characterized in that: The installation mechanism (2) includes: an installation plate (201) and an installation rod (202); there are two installation plates (201), and the two installation plates (201) are fixedly connected to the rotating disk (104); there are two installation rods (202), and the two installation rods (202) are fixedly installed between the two installation plates (201).

3. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 2, characterized in that: The mounting mechanism (2) further includes: a mounting base (203), a reset groove (2031), and a reset spring A (204); the mounting base (203) is slidably mounted on the outer wall of the two mounting rods (202), and a reset groove (2031) is provided at the bottom of the mounting base (203); there are four reset springs A (204), and two reset springs A (204) are fitted on the outside of each mounting rod (202), and the four reset springs A (204) are located between the mounting base (203) and the corresponding mounting plate (201).

4. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 3, characterized in that: The pushing mechanism (3) includes a pushing frame (301) and a pushing rod (302); the pushing frame (301) is fixedly connected to the rotating disk (104); the pushing rod (302) is slidably mounted on the pushing frame (301), and the top of the pushing rod (302) is a hemispherical structure, and the top of the pushing rod (302) is tangent to the reset groove (2031).

5. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 4, characterized in that: The pushing mechanism (3) further includes: a limiting ring A (303) and a return spring B (304); the limiting ring A (303) is fixedly installed on the outer wall of the pushing rod (302); the return spring B (304) is installed on the outside of the pushing rod (302), and the return spring B (304) is located between the rotating disk (104) and the limiting ring A (303).

6. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 1, characterized in that: The limiting mechanism (5) includes: a limiting seat (501), a guide rod (502), and a limiting block (503); the limiting seat (501) is fixedly installed on the top of the stabilizing plate (402); the guide rod (502) is slidably installed on the limiting seat (501), and the cross-section of the guide rod (502) is an octagonal structure; the limiting block (503) is fixedly installed on the rear side of the guide rod (502), and the limiting block (503) is in contact with the anti-slip groove (4031).

7. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 6, characterized in that: The limiting mechanism (5) further includes: a return spring D (504) and a pull block (505); the return spring D (504) is installed outside the guide rod (502), and the return spring D (504) is located between the limiting seat (501) and the limiting block (503); the pull block (505) is fixedly installed on the front side of the guide rod (502).

8. The lightning arrester for suppressing overload voltage for overhead transmission lines as described in claim 1, characterized in that: The drive mechanism (6) includes: a drive shaft (601), an arrow (602), and a tail fin (603); the middle part of the drive shaft (601) is fixedly installed inside the lightning arrester (401); the arrow (602) is fixedly installed at the left end of the drive shaft (601); and the tail fin (603) is fixedly installed at the right end of the drive shaft (601).

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