Novel connection structure of 500kV line lightning arrester

Abstract

The utility model discloses a novel connection structure of a 500kV line lightning arrester, and relates to the technical field of electrical equipment. The lightning arrester comprises a lightning arrester main body, connecting rods and U-shaped frames, rotating columns are fixed at the two ends of the lightning arrester main body, the connecting rods are rotatably connected to the ends, away from the lightning arrester main body, of the two rotating columns, a mounting lug is fixed to the end, away from the rotating columns, of each connecting rod, and the two U-shaped frames are arranged at the end, away from the connecting rods, of each mounting lug. And the two U-shaped frames on the outer side of the same mounting lug are sleeved with each other. According to the lightning arrester connecting structure, the lightning arrester main body, the connecting rod, the U-shaped frame and the mounting plate are arranged, so that the problems that the lightning arrester connecting structure is not good enough in applicability to a radial mounting included angle during mounting and not high enough in mounting and adjusting freedom degree are solved, and the lightning arrester connecting structure has the advantages that the lightning arrester connecting structure is good in applicability to the radial mounting included angle during mounting, and the mounting and adjusting freedom degree is not high. And the degree of freedom of installation and adjustment is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and particularly relates to a new connection structure of a 500kV line arrester. Background Art

[0002] A lightning arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards. It is usually connected between the power grid conductor and the ground wire, and sometimes connected beside the electrical winding or between the conductors. The function of the lightning arrester is to reduce the amplitude of the intrusion current wave through the parallel discharge gap or nonlinear resistor in the overvoltage event caused by lightning or other reasons, thereby reducing the overvoltage value of the protected equipment and protecting the communication lines and equipment. The lightning arrester is connected to the tower through a connection structure, but it still has the following disadvantages in actual use:

[0003] When the arrester connection structure is working, it is directly connected to the connection structure through the connection structure. When the connection structure is installed, the connection positions between the two mounting plates are different, and the angles between the end faces of the mounting plates are different, so the installation applicability is not good enough;

[0004] The arrester connection structure is directly installed during operation. During the operation, the operator needs to perform complex installation. When the installation structure is aligned, the position cannot be adjusted. During the adjustment process, the degree of freedom is not high enough and the installation is not convenient enough. Utility Model Content

[0005] The purpose of the utility model is to provide a new connection structure for a 500kV line lightning arrester. By arranging a lightning arrester body, a connecting rod, a U-shaped frame and a mounting plate, the problem that the lightning arrester connection structure is not sufficiently applicable to the radial installation angle during installation and the installation adjustment freedom is not high enough is solved.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a novel connection structure of a 500kV line lightning arrester, comprising a lightning arrester body, a connecting rod and a U-shaped frame, both ends of the lightning arrester body are fixed with rotating columns, the ends of the two rotating columns away from the lightning arrester body are rotatably connected with the connecting rod, each of the connecting rods is fixed with a mounting ear at one end away from the rotating column, and each of the mounting ears is provided with two U-shaped frames at one end away from the connecting rod, and the two U-shaped frames outside the same mounting ear are sleeved and arranged with each other. When working, the lightning arrester body provides a lightning protection effect, the lightning arrester body and the U-shaped frame are connected by the connecting rod, and the mounting plate is connected thereto by the U-shaped frame.

[0008] Furthermore, a plurality of large umbrella skirts are equidistantly fixed on the circumference of the arrester body, and small umbrella skirts are fixed on the circumference of the arrester body between adjacent large umbrella skirts. The arrester body protects the core rod in the arrester body through the large umbrella skirts and the small umbrella skirts to avoid corrosion of the core rod.

[0009] Furthermore, mounting plates are fixed at both ends of the U-shaped frame, the two mounting plates are parallel to each other, mounting bolts are inserted through the two mounting plates, the central axis of the mounting bolts is in the same straight line as the central axis of the mounting plates, and the U-shaped frame is connected to the mounting ears and the mounting plate through the mounting plates.

[0010] Furthermore, a mounting hole is formed through the mounting ears, and a mounting bolt close to the connecting rod is inserted into the mounting hole, and the mounting ears are movably connected to the mounting bolt through the mounting hole.

[0011] Furthermore, the end of the mounting bolt is threadedly connected with a fastening nut, the top end of the fastening nut abuts against the end surface of the mounting plate, and the mounting bolt is fastened by the fastening nut.

[0012] Furthermore, a mounting plate is movably connected between the two mounting plates at the end of the U-shaped frame away from the connecting rod, and a socket is opened in the mounting plate between the two mounting plates. The mounting bolts movably connected in the two mounting plates at the end of the U-shaped frame away from the connecting rod are inserted into the socket, and the connecting rod is installed on the mounting structure on the iron tower through the mounting plate, so that the lightning arrester body is installed on the iron tower.

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

[0014] The utility model solves the problem that the lightning arrester connection structure is not sufficiently applicable to the radial installation angle during installation by arranging a U-shaped frame and a mounting plate. The radial installation at different angles between the two mounting plates is conveniently ensured by rotating the rotating column and the connecting rod, so that the lightning arrester connection structure is better applicable to the installation at different radial installation angles during installation.

[0015] The utility model solves the problem of insufficient freedom of installation and adjustment of the arrester connection structure by arranging the arrester main body, the connecting rod and the U-shaped frame. The mounting plate is placed between the two mounting plates away from the connecting rod, and the mounting bolts are then inserted into the two mounting plates and passed through the sockets on the mounting plate at the same time, and then the fastening nuts are screwed onto the mounting bolts, so that the mounting plate is installed on the U-shaped frame during work, and the arrester main body is installed on the iron tower, so that the arrester connection structure has a higher degree of freedom of installation and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 This is a stereogram of the assembly structure of a new type of connection structure for a 500kV line arrester;

[0018] Figure 2 This is a three-dimensional diagram of the main structure of the arrester;

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

[0020] Figure 4 It is a three-dimensional diagram of the U-shaped frame structure;

[0021] Figure 5 This is a three-dimensional diagram of the mounting plate structure.

[0022] Reference numerals:

[0023] 1. Lightning arrester body; 101. Large umbrella skirt; 102. Small umbrella skirt; 103. Rotating column; 2. Connecting rod; 201. Mounting ear; 202. Mounting hole; 3. U-shaped frame; 301. Mounting plate; 302. Mounting bolt; 303. Fastening nut; 4. Mounting plate; 401. Socket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0025] See also Figure 1-4The utility model is a new type of connection structure of a 500kV line lightning arrester, including a lightning arrester body 1, a connecting rod 2 and a U-shaped frame 3. Rotating columns 103 are fixed at both ends of the lightning arrester body 1. The lightning arrester body 1 provides lightning protection operations. The lightning arrester body 1 and the connecting rod 2 are connected together through the rotating column 103. The ends of the two rotating columns 103 away from the lightning arrester body 1 are rotatably connected to the connecting rod 2, and the U-shaped frame 3 is connected thereto through the connecting rod 2. A mounting ear 201 is fixed at one end of each connecting rod 2 away from the rotating column 103, and the U-shaped frames 3 are connected together through the mounting ears 201. Two U-shaped frames 3 are arranged at one end of each mounting ear 201 away from the connecting rod 2. Two U-shaped frames 3 are arranged on the outer sides of the same mounting ear 201 in a sleeve-type arrangement, and the mounting plate 4 and the connecting rod 2 are connected together through the U-shaped frame 3.

[0026] Specifically, a plurality of large sheds 101 are fixed equidistantly around the arrester body 1, and small sheds 102 are fixed around the arrester body 1 between adjacent large sheds 101. The large sheds 101 and the small sheds 102 protect the core rod from climate influence and electrical corrosion, and provide the required creepage distance.

[0027] Furthermore, mounting plates 301 are fixed at both ends of the U-shaped frame 3, and the two mounting plates 301 are parallel to each other. A mounting bolt 302 is inserted through both mounting plates 301, and the central axis of the mounting bolt 302 is in the same straight line as the central axis of the mounting plate 301. The U-shaped frame 3 connects the mounting plates 301 thereto, and makes the two mounting plates 301 correspond to each other and be arranged in parallel.

[0028] Furthermore, a mounting hole 202 is formed through the mounting ears 201, and a mounting bolt 302 close to the connecting rod 2 is inserted into the mounting hole 202. The mounting ears 201 are movably connected to the mounting bolt 302 through the mounting hole 202, so that the connecting rod 2 and the U-shaped frame 3 are connected together during operation.

[0029] Furthermore, the end of the mounting bolt 302 is threadedly connected with a fastening nut 303, and the top end of the fastening nut 303 abuts against the end face of the mounting plate 301. After the mounting bolt 302 is screwed onto the fastening nut 303, it is rotated to be tightened with the mounting plate 301, so that the mounting bolt 302 is installed during work.

[0030] The operation process of this embodiment is as follows: during installation, first take the arrester body 1, place the mounting ear 201 at the end of the connecting rod 2 between two mounting plates 301 connected by a U-shaped frame 3, and then insert the mounting bolt 302 between the two mounting plates 301, and then insert the mounting bolt 302 into the two mounting plates 301, and at the same time pass through the mounting hole 202 on the mounting ear 201, and then screw the fastening nut 303 onto the mounting bolt 302, so that when working, the mounting plate 4 and the U-shaped frame 3 are installed together, and when working, the two mounting plates 4 are conveniently installed at different angles radially through the rotating column 103 and the connecting rod 2. Specific embodiment 2

[0031] See also Figure 1 , 4 5. On the basis of the specific embodiment 1, a mounting plate 4 is movably connected between the two mounting plates 301 at the ends of the U-shaped frame 3 away from the connecting rod 2, and the mounting plate 4 is fixed together with the mounting tower of the lightning arrester. A socket 401 is provided in the mounting plate 301 between the two mounting plates 301, and the mounting bolts 302 movably connected in the two mounting plates 301 at the ends of the U-shaped frame 3 away from the connecting rod 2 are inserted into the socket 401. The connecting rod 2 is placed between the two mounting plates 301 away from the connecting rod 2 through the mounting plate 4, and then the mounting bolts 302 are inserted into the two mounting plates 301 and pass through the socket 401 on the mounting plate 4 at the same time, and then the fastening nuts 303 are screwed onto the mounting bolts 302, so that the mounting plate 4 is installed on the U-shaped frame 3 during work, so that the lightning arrester body 1 is installed on the tower.

[0032] The operation process of this embodiment is: place the mounting plate 4 between the two mounting plates 301 away from the connecting rod 2, then insert the mounting bolts 302 into the two mounting plates 301, and pass through the sockets 401 on the mounting plate 4, and then screw the fastening nuts 303 onto the mounting bolts 302, so that the mounting plate 4 is installed on the U-shaped frame 3 during work, so that the lightning arrester body 1 is installed on the iron tower.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel connection structure for a 500 kV line arrester, comprising an arrester body (1), a connecting rod (2) and a U-shaped frame (3), characterized in that: Rotating columns (103) are fixed at both ends of the arrester body (1); the ends of the two rotating columns (103) away from the arrester body (1) are rotatably connected to connecting rods (2); a mounting ear (201) is fixed at one end of each connecting rod (2) away from the rotating column (103); two U-shaped frames (3) are arranged at one end of each mounting ear (201) away from the connecting rod (2); and the two U-shaped frames (3) outside the same mounting ear (201) are mutually sleeved.

2. A novel connection structure for a 500kV line arrester according to claim 1, characterized in that: A plurality of large umbrella skirts (101) are fixed at equal intervals on the circumference of the arrester body (1), and small umbrella skirts (102) are fixed on the circumference of the arrester body (1) between adjacent large umbrella skirts (101).

3. A novel connection structure for a 500kV line arrester according to claim 1, characterized in that: Both ends of the U-shaped frame (3) are fixed with mounting plates (301), the two mounting plates (301) are parallel to each other, a mounting bolt (302) is inserted through the two mounting plates (301), and the central axis of the mounting bolt (302) is on the same straight line as the central axis of the mounting plate (301).

4. A novel connection structure for a 500kV line arrester according to claim 3, characterized in that: The mounting ears (201) are each provided with a mounting hole (202) extending therethrough, and a mounting bolt (302) close to the connecting rod (2) is inserted through the mounting hole (202).

5. A novel connection structure for a 500kV line arrester according to claim 4, characterized in that: The end of the mounting bolt (302) is threadedly connected to a fastening nut (303), and the top end of the fastening nut (303) abuts against the end surface of the mounting plate (301).

6. A novel connection structure for a 500kV line arrester according to claim 5, characterized in that: A mounting plate (4) is movably connected between two mounting plates (301) at the end of the U-shaped frame (3) away from the connecting rod (2), a plug hole (401) is provided through the mounting plate (301) between the two mounting plates (301), and mounting bolts (302) movably connected in the two mounting plates (301) at the end of the U-shaped frame (3) away from the connecting rod (2) are inserted into the plug hole (401).

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