Loop gap lightning arrester structure

Abstract

The utility model discloses a ring gap lightning arrester structure, and relates to the related technical field of lightning arresters. The lightning arrester comprises an iron tower cross arm, a post insulator, a lightning arrester body, a discharge gap ring and a fastening assembly, a mounting frame is arranged between the bottom end of the post insulator and the iron tower cross arm, the lightning arrester body is fixed to the short edge, away from the post insulator, of the mounting frame, and a second mounting stud is fixed to the top end of the lightning arrester body; a mounting plate is movably connected to the peripheral side of the second mounting stud, a fastening assembly is vertically and movably connected into the fixing plate in a penetrating mode, and a discharging gap ring is fixed to the end, away from the fastening assembly, of the fixing plate. Through the arrangement of the iron tower cross arm, the post insulator, the lightning arrester main body, the discharge gap ring and the fastening assembly, the problems that in the working process of the lightning arrester, a gap reserved between the lightning arrester and the insulator easily causes lead voltage invasion, and the position matching between the insulator and the lightning guiding structure of the lightning arrester is not convenient enough are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to lightning arresters, and particularly relates to a ring gap lightning arrester structure. Background Art

[0002] A lightning arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards and limit the follow-on time and amplitude. It is usually connected between the grid conductor and the ground wire, and sometimes connected next to the electrical winding or between the wires. It is also called an overvoltage protector or overvoltage limiter. A lightning arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards and limit the follow-on time and amplitude. It is usually connected between the grid conductor and the ground wire, and sometimes connected next to the electrical winding or between the wires. It is also called an overvoltage protector or overvoltage limiter. However, it still has the following disadvantages in actual use:

[0003] During the operation of the arrester, lightning protection is usually performed directly through the arrester. However, there is a certain gap between the arrester and the support insulator. When the charge is transferred to the conductor, it is easy to cause voltage intrusion on the conductor, affecting the transmission safety of the conductor.

[0004] During the operation of the lightning arrester, it is usually necessary to install the lightning arrester between the support insulators. During operation, the charge in the air outside the insulator needs to be transferred to the lightning arrester. The position coordination between the insulator and the lightning induction structure of the lightning arrester is not convenient enough. Utility Model Content

[0005] The purpose of the utility model is to provide a ring gap lightning arrester structure. By arranging a tower crossarm, a support insulator, a lightning arrester body, a discharge gap ring and a fastening assembly, the utility model solves the problems that the gap left between the lightning arrester and the insulator during the operation of the lightning arrester easily causes the intrusion of the conductor voltage, and the position coordination between the insulator and the lightning induction structure of the lightning arrester is not convenient.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a ring gap lightning arrester structure, comprising an iron tower cross arm, a support insulator, an arrester body, a discharge gap ring and a fastening assembly, wherein the top of the iron tower cross arm is provided with a support insulator, a mounting bracket is provided between the bottom end of the support insulator and the iron tower cross arm, the arrester body is fixed to the short side of the mounting bracket away from the support insulator, the top of the arrester body is fixed with a second mounting stud, the peripheral side of the second mounting stud is movably connected with a mounting plate, the top of the mounting plate is provided with a sliding groove running through it along a center line parallel to the long side, and the top of the mounting plate is provided with a mounting plate. There is a fixed plate, in which a fastening assembly is vertically passed through and movably connected. The fastening assembly is movably connected in the sliding groove. A discharge gap ring is fixed to the end of the fixed plate away from the fastening assembly. When working, when working through the cross arm of the tower, the support insulator, the lightning arrester body, the discharge gap ring and the fastening assembly are supported thereon. When working through the support insulator, the overhead bare wire is supported thereon, and lightning protection operations are performed through the lightning arrester body. The current is transmitted to the lightning arrester body through the discharge gap ring, and the connection between the fixed plate and the mounting plate is restricted together by the fastening assembly.

[0008] Furthermore, a mounting hole is provided through the top of the tower cross arm, and a mounting stud is fixed at the center of the bottom end of the support insulator. When the tower cross arm is working, the mounting bolt is movably connected through the mounting hole.

[0009] Furthermore, the mounting stud 1 is inserted through the mounting frame and passes through the mounting hole, and the circumferential side of the mounting stud 1 below the mounting hole is threadedly connected with a fastening nut 1, so that during operation, the mounting frame and the support insulator are connected together with the tower crossarm.

[0010] Furthermore, the circumferential side of the second mounting stud is threadedly connected to two mounting nuts, and the mounting plate is arranged between the two mounting nuts. When the second mounting stud is working, the mounting plate is installed through the mounting nuts.

[0011] Furthermore, the two ends of the discharge gap ring are bent, and the discharge gap ring is arranged outside the post insulator. The discharge gap ring is arranged outside the post insulator to protect the power equipment from overvoltage intrusion.

[0012] Furthermore, the fastening assembly includes a limiting plate, a threaded column and a fastening nut. A threaded column is fixed to the top of the limiting plate. The threaded column is inserted into the sliding groove and passes through the fixed plate. The threaded column above the fixed plate is threadedly connected to the fastening nut 2 on the circumferential side, so that the fastening assembly is installed between the mounting plate and the fixed plate.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem that the gap between the lightning arrester and the insulator easily causes the wire voltage to invade during the operation of the lightning arrester by arranging the iron tower crossarm, the support insulator, the lightning arrester body and the discharge gap ring. During operation, the discharge gap ring is arranged on the outside of the support insulator after installation. When working, when the discharge gap ring works, it is arranged on the outside of the support insulator. When a lightning overcurrent occurs, the current flows along the ring into the fixing plate, is transmitted to the mounting plate through the fixing plate, and is transmitted to the lightning arrester body through the mounting plate, so that the power equipment is protected from the invasion of overvoltage.

[0015] The utility model solves the problem of inconvenient position coordination between the insulator and the lightning induction structure of the lightning arrester during the operation of the lightning arrester by arranging a support insulator, a lightning arrester main body, a discharge gap ring and a fastening assembly. When the mounting frame is installed, the mounting plate is immediately sleeved onto the mounting stud second, the mounting plate is rotated to align with the support insulator, and then another mounting nut is screwed onto the mounting stud second until it is pressed tightly against the mounting plate, so that the mounting plate is installed on the mounting stud second. Then the fixing plate is placed on the mounting plate, and the end of the discharge gap ring is arranged on the outside of the support insulator by pulling, or is sleeved from the top of the support insulator to the outside, and the fixing plate is placed on the mounting plate. Then, when the fastening assembly is working, the threaded column connected to the limiting disk is inserted into the sliding groove and passes through the fixing plate, and the fastening nut is screwed to the top of the threaded column and pressed tightly against the top of the fixing plate to complete the installation operation of the discharge gap ring, making the position coordination between the discharge gap ring and the lightning induction structure of the lightning arrester more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of the assembly structure of a ring gap lightning arrester;

[0018] Figure 2 This is a three-dimensional diagram of the tower cross arm structure;

[0019] Figure 3 It is a three-dimensional diagram of the support insulator structure;

[0020] Figure 4 This is a three-dimensional diagram of the main structure of the arrester;

[0021] Figure 5 It is a three-dimensional diagram of the discharge gap ring structure;

[0022] Figure 6 It is a three-dimensional diagram of the fastening component structure.

[0023] Reference numerals:

[0024] 1. Tower crossarm; 101. Mounting hole; 2. Post insulator; 201. Mounting stud 1; 202. Fastening nut 1; 3. Arrester body; 301. Mounting stud 2; 302. Mounting nut; 303. Mounting plate; 304. Sliding groove; 305. Mounting frame; 4. Discharge gap ring; 401. Fixing plate; 5. Fastening assembly; 501. Limiting plate; 502. Threaded column; 503. Fastening nut 2. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0026] See also Figure 1-6The utility model is a ring gap lightning arrester structure, including a tower crossarm 1, a support insulator 2, a lightning arrester body 3, a discharge gap ring 4 and a fastening assembly 5. The top of the tower crossarm 1 is provided with a support insulator 2. When the tower crossarm 1 is working, the support insulator 2 and the mounting bracket 305 are supported thereon, and support is provided for the overhead bare conductor through the support insulator 2. A mounting bracket 305 is provided between the bottom end of the support insulator 2 and the tower crossarm 1. The mounting bracket 305 provides installation support for the lightning arrester body 3 and the tower crossarm 1. The lightning arrester body 3 is fixed at the short side of the mounting bracket 305 away from the support insulator 2. When the lightning arrester body 3 is working, it provides lightning protection for the conductor. The top of the lightning arrester body 3 is fixed with a second mounting stud 301, and the peripheral side of the second mounting stud 301 is movably connected with a mounting plate 303. The lightning arrester body 3 is fixed with a second mounting stud 301. The mounting plate 303 is installed, and a sliding groove 304 is provided on the top of the mounting plate 303 along the center line parallel to the long side. When the mounting plate 303 works through the sliding groove 304, the fastening component 5 is movably connected therein. A fixed plate 401 is provided on the top of the mounting plate 303. When the fixed plate 401 works, the discharge gap ring 4 is connected to its end, so that when the discharge gap ring 4 is installed, it is set on the outside of the lightning arrester body 3, and the fastening component 5 is vertically and movably connected in the fixed plate 401. The fastening component 5 is movably connected in the sliding groove 304, so that when working, the position between the fixed plate 401 and the mounting plate 303 is determined. The discharge gap ring 4 is fixed on the end of the fixed plate 401 away from the fastening component 5. When working through the discharge gap ring 4, it is set on the outside of the post insulator 2. When a lightning overcurrent occurs, the current flows into the lightning arrester body 3 along the loop.

[0027] Specifically, a mounting hole 101 is formed through the top of the tower cross arm 1 , and a mounting stud 201 is fixed to the center of the bottom end of the support insulator 2 . When the tower cross arm 1 is working, the mounting stud 201 is movably connected through the mounting hole 101 .

[0028] Furthermore, the mounting stud 201 is inserted through the mounting frame 305 and passes through the mounting hole 101. The circumferential side of the mounting stud 201 below the mounting hole 101 is threadedly connected with a fastening nut 202. When working, the mounting stud 201 is working by placing the mounting frame 305 on the tower crossarm 1, inserting the mounting stud 201 into the mounting frame 305 and passing through the mounting hole 101, and screwing the fastening nut 202 from the bottom end of the mounting stud 201 until it is pressed against the inner wall of the tower crossarm 1, so that the tower crossarm 1 is installed and fastened to the support insulator 2 and the mounting frame 305.

[0029] The operation process of this embodiment is as follows: when working, by placing the mounting bracket 305 on the tower crossarm 1, inserting the mounting stud 201 into the mounting bracket 305 and passing it through the mounting hole 101, screwing the fastening nut 202 from the bottom end of the mounting stud 201 until it is pressed tightly against the inner wall of the tower crossarm 1, the tower crossarm 1, the support insulator 2 and the mounting bracket 305 are installed and fastened, so that when working, the discharge gap ring 4 is set on the outside of the support insulator 2 after installation. When working, the discharge gap ring 4 is set on the outside of the support insulator 2. When a lightning overcurrent occurs, the current flows along the ring to the fixing plate 401, is transferred to the mounting plate 303 through the fixing plate 401, and is transferred to the arrester body through the mounting plate 303, so that the power equipment is protected from the invasion of overvoltage. Specific embodiment 2

[0030] See also Figure 1 、 4 , 5, 6, based on the specific embodiment 1, the circumferential side thread connection of the mounting stud 2 301 is connected with two mounting nuts 302, and the mounting plate 303 is arranged between the two mounting nuts 302. When the mounting stud 2 301 is working, one mounting nut 302 is first screwed onto it, and then the mounting plate 303 is put onto the mounting stud 2 301, and then the other mounting nut 302 is screwed onto the mounting stud 2 301 until it is tightened between the mounting plate 303, so that the mounting plate 303 is installed on the mounting stud 2 301.

[0031] Specifically, the two ends of the discharge gap ring 4 are bent, and the discharge gap ring 4 is set on the outside of the support insulator 2. When the discharge gap ring 4 is working, the ends are bent, so that when installing, the discharge gap ring 4 can be expanded and the discharge gap ring 4 can be set on the outside of the support insulator 2.

[0032] Furthermore, the fastening assembly 5 includes a limiting plate 501, a threaded column 502 and a fastening nut 2 503. The threaded column 502 is fixed to the top of the limiting plate 501. The threaded column 502 is inserted into the sliding groove 304 and passes through the fixed plate 401. The threaded column 502 above the fixed plate 401 is threadedly connected to the fastening nut 2 503 on the circumferential side. When the fastening assembly 5 is working, the threaded column 502 connected by the limiting plate 501 is inserted into the sliding groove 304 and passes through the fixed plate 401, and then the fastening nut 2 503 is screwed to the top of the threaded column 502 and pressed against the top of the fixed plate 401 to complete the installation of the discharge gap ring 4.

[0033] The operation process of this embodiment is as follows: during operation, after the mounting frame 305 is installed, the mounting plate 303 is immediately put on the second mounting stud 301, and after the mounting plate 303 is rotated to align with the post insulator 2, another mounting nut 302 is immediately screwed onto the second mounting stud 301 until it is pressed tightly against the mounting plate 303, so that the mounting plate 303 is installed on the second mounting stud 301, and then the fixing plate 401 is placed on the mounting plate 303, and the end of the discharge gap ring 4 is set on the outside of the post insulator 2 by pulling it out, or it is put on the outside of the post insulator 2 from the top, and the fixing plate 401 is placed on the mounting plate 303, and then when the fastening assembly 5 is working, the threaded column 502 connected to the limiting disk 501 is inserted into the sliding groove 304 and passes through the fixing plate 401, and then the second fastening nut 503 is screwed to the top of the threaded column 502 and pressed tightly against the top of the fixing plate 401 to complete the installation of the discharge gap ring 4.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A ring gap lightning arrester structure, comprising a tower cross arm (1), a support insulator (2), an arrester body (3), a discharge gap ring (4) and a fastening assembly (5), characterized in that: A support insulator (2) is provided at the top of the tower cross arm (1), a mounting frame (305) is provided between the bottom end of the support insulator (2) and the tower cross arm (1), a lightning arrester body (3) is fixed to the mounting frame (305) at the short side away from the support insulator (2), a second mounting stud (301) is fixed to the top of the lightning arrester body (3), a mounting stud second (301) is movably connected to a mounting plate (303) on the circumferential side, a sliding groove (304) is provided through the top of the mounting plate (303) along a center line parallel to the long side, a fixing plate (401) is provided at the top of the mounting plate (303), a fastening assembly (5) is vertically and movably connected through the fixing plate (401), the fastening assembly (5) is movably connected through the sliding groove (304), and a discharge gap ring (4) is fixed to one end of the fixing plate (401) away from the fastening assembly (5).

2. The ring gap arrester structure according to claim 1, characterized in that: A mounting hole (101) is provided through the top of the tower cross arm (1), and a mounting stud (201) is fixed at the center of the bottom end of the support insulator (2).

3. The ring gap arrester structure according to claim 2, characterized in that: The mounting stud 1 (201) is inserted into the mounting frame (305) and passes through the mounting hole (101), and a fastening nut 1 (202) is threadedly connected to the circumferential side of the mounting stud 1 (201) below the mounting hole (101).

4. The ring gap arrester structure according to claim 1, characterized in that: The circumferential side of the second mounting stud (301) is threadedly connected to two mounting nuts (302), and the mounting plate (303) is arranged between the two mounting nuts (302).

5. The ring gap arrester structure according to claim 1, characterized in that: The two ends of the discharge gap ring (4) are arranged in a bent manner, and the discharge gap ring (4) is arranged outside the post insulator (2).

6. The ring gap arrester structure according to claim 1, characterized in that: The fastening assembly (5) comprises a limiting disk (501), a threaded column (502) and a second fastening nut (503). The threaded column (502) is fixed to the top of the limiting disk (501). The threaded column (502) is inserted into the sliding groove (304) and passes through the fixing plate (401). The threaded column (502) above the fixing plate (401) is threadedly connected to the second fastening nut (503) on its circumferential side.

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