Lightning arrester

Abstract

The utility model discloses a lightning arrester, relates to the lightning arrester field, including fixed seat and lightning arrester main part detachably installed on the fixed seat, the top end of fixed seat is equipped with the mounting seat, the top end of the mounting seat is equipped with the mounting hole that runs through fixed seat, and one side of the mounting seat is rotatingly equipped with the double thread lead screw, and the double thread lead screw is equipped with the lead screw. Telescopic holes are formed in the two sides of the inner wall of the mounting hole, and the two ends of the double-thread lead screw are connected with positioning rods used for fixing the lightning arrester body. According to the utility model, the double-thread lead screw is driven to rotate through the knob, and the two connecting plates are driven to move oppositely in the rotating process, so that the connecting plates drive the positioning rods to be inserted into the positioning holes in the side wall of the insulating sleeve, the lightning arrester main body is kept fixed at the top end of the fixed seat, and the lightning arrester main body is disassembled, assembled and maintained only by rotating the double-thread lead screw; the hang time of maintenance personnel is greatly reduced, and the disassembly and assembly efficiency of the lightning arrester main body is improved.

Description

Technical Field

[0001] This utility model relates to the field of surge arresters, specifically a surge arrester. Background Technology

[0002] A surge arrester is an electrical device that can release the energy of lightning or, in addition to, the switching overvoltage energy of a power system, protect electrical equipment from the damage caused by transient overvoltages (lightning overvoltage, switching overvoltage, and power frequency transient overvoltage), and also interrupt follow current to prevent the system from grounding short circuit. However, existing surge arresters are cumbersome to install and dismantle, making them inconvenient for maintenance personnel.

[0003] Patent application number 202322064133.2 discloses a surge arrester, belonging to the field of electrical equipment technology. It includes a mounting base and a surge arrester body. The mounting base has mounting blocks welded around its bottom edge. Fasteners are provided in the inner cavity of the mounting blocks. The mounting base has an inner cavity, and a rotating component is installed in the inner cavity. A gear column is meshed with the surface of the rotating component. The top end of the gear column passes through the mounting base and is fixedly connected to a support block. Movable components are fixedly connected to both ends of the support block. A lifting plate is fixedly connected to the upper surface of the movable component. A sliding component is fixedly connected to the upper surface of the lifting plate. The upper surface of the sliding component is fixedly connected to the surge arrester body.

[0004] The aforementioned technical solution utilizes a threaded lifting mechanism to adjust the height of the surge arrester and uses bolts to maintain the axial positioning of the threaded components. When disassembling or assembling the surge arrester, the height must first be adjusted, and then multiple bolts must be removed. This significantly increases the time maintenance personnel spend at height and increases the difficulty of maintaining the surge arrester. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a surge arrester to solve the technical problem that when assembling and disassembling a surge arrester, it is necessary to first adjust the height of the surge arrester and then disassemble multiple bolts, which greatly increases the time that maintenance personnel spend in the air and increases the difficulty of maintaining the surge arrester.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surge arrester, comprising a fixed base and a surge arrester body detachably mounted on the fixed base. The top of the fixed base is provided with a mounting seat, and the top of the mounting seat is provided with a mounting hole penetrating the fixed base. A double-threaded screw is rotatably provided on one side of the mounting seat. Telescopic holes are provided on both sides of the inner wall of the mounting hole. Both ends of the double-threaded screw are connected to positioning rods for fixing the surge arrester body.

[0007] The present invention is further configured such that the main body of the surge arrester includes an insulating sleeve and a lightning rod fixed at both ends of the insulating sleeve, the side wall of the insulating sleeve is symmetrically provided with positioning holes, and the bottom end of the insulating sleeve is provided with a groove.

[0008] The present invention is further configured such that the fixing base has multiple through holes, and the top of the fixing base is fitted with bolts embedded in the through holes.

[0009] The present invention is further configured such that connecting seats are symmetrically fixed on the side wall of the mounting base, both ends of the double threaded screw are rotatably inserted into the connecting seats, and a knob is fixedly sleeved on the double threaded screw.

[0010] The present invention is further configured such that connecting plates are fixedly sleeved on both positioning rods, and both connecting plates are threaded onto both ends of a double-threaded screw, with an anti-detachment part fixed at one end of the double-threaded screw that passes through the connecting plates.

[0011] The present invention is further configured such that the bottom end of the insulating sleeve is fitted into the mounting hole, and the inner wall of the mounting hole is fixed with a protrusion that matches the groove.

[0012] The present invention is further configured such that the positioning rod is slidably inserted into the telescopic hole, and one end of the positioning rod extending into the mounting hole is fitted into the positioning hole.

[0013] In summary, this utility model has the following advantages: By providing a mounting base at the top of the fixed base, the insulating sleeve at the bottom of the surge arrester body fits into the mounting hole. The protrusion in the mounting hole engages with the groove on the side wall of the insulating sleeve, stabilizing the surge arrester body. A knob drives the double-threaded screw to rotate, causing two connecting plates to move towards each other. This allows the connecting plates to insert the positioning rod into the positioning hole on the side wall of the insulating sleeve, thus fixing the surge arrester body at the top of the fixed base. When disassembling the surge arrester body, rotating the knob and the double-threaded screw allows the positioning rod to slide out of the positioning hole. Only the double-threaded screw needs to be rotated for disassembly and maintenance of the surge arrester body, greatly reducing the downtime for maintenance personnel and improving the efficiency of disassembly and assembly of the surge arrester body. Attached Figure Description

[0014] Figure 1This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of the surge arrester of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixing base structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing base of this utility model from another angle.

[0018] In the diagram: 1. Surge arrester body; 2. Surge conductor rod; 3. Insulating sleeve; 4. Fixing base; 5. Bolt; 6. Groove; 7. Positioning hole; 8. Expansion hole; 9. Mounting hole; 10. Mounting base; 11. Positioning rod; 12. Connecting plate; 13. Double threaded screw; 14. Knob; 15. Connecting base; 16. Anti-detachment part; 17. Protrusion; 18. Through hole. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] A type of surge arrester, such as Figure 1-4 As shown, the device includes a fixed base 4 and a surge arrester body 1 that can be detachably installed on the fixed base 4. The top of the fixed base 4 is provided with a mounting base 10. The top of the mounting base 10 is provided with a mounting hole 9 that passes through the fixed base 4. A double threaded screw 13 is rotatably provided on one side of the mounting base 10. Telescopic holes 8 are provided on both sides of the inner wall of the mounting hole 9. Both ends of the double threaded screw 13 are connected to positioning rods 11 for fixing the surge arrester body 1.

[0021] The surge arrester body 1 includes an insulating sleeve 3 and lightning rods 2 fixed at both ends of the insulating sleeve 3. The side wall of the insulating sleeve 3 is symmetrically provided with positioning holes 7, and the bottom end of the insulating sleeve 3 is provided with a groove 6. The fixing seat 4 is provided with multiple through holes 18, and the top end of the fixing seat 4 is installed with bolts 5 embedded in the through holes 18. The side wall of the mounting seat 10 is symmetrically fixed with connecting seats 15. Both ends of the double threaded screw 13 are rotatably inserted into the connecting seats 15, and a knob 14 is fixedly sleeved on the double threaded screw 13. The insulating sleeve 3 at the bottom end of the surge arrester body 1 fits into the mounting hole 9. The protrusion 17 in the mounting hole 9 is engaged in the groove 6 on the side wall of the insulating sleeve 3, so that the surge arrester body 1 remains stable. The double threaded screw 13 is rotated by the knob 14, and during the rotation, the two connecting plates 12 move towards each other, so that the connecting plates 12 drive the positioning rod 11 to insert into the positioning hole 7 on the side wall of the insulating sleeve 3, so that the surge arrester body 1 is fixed at the top end of the fixing seat 4.

[0022] Furthermore, each of the two positioning rods 11 is fixedly fitted with a connecting plate 12, and both connecting plates 12 are threaded onto both ends of the double threaded screw 13. One end of the double threaded screw 13 passing through the connecting plate 12 is fixed with an anti-detachment part 16. The bottom end of the insulating sleeve 3 is fitted into the mounting hole 9. The inner wall of the mounting hole 9 is fixed with a protrusion 17 that matches the groove 6. The positioning rod 11 is slidably inserted into the telescopic hole 8, and the end of the positioning rod 11 extending into the mounting hole 9 is fitted into the positioning hole 7. The anti-detachment part 16 can prevent the connecting plate 12 from falling off the double threaded screw 13. When disassembling the surge arrester body 1, the positioning rod 11 is slid out of the positioning hole 7 by rotating the knob 14 and the double threaded screw 13. Only the double threaded screw 13 needs to be rotated to disassemble and maintain the surge arrester body 1, which greatly reduces the time spent by maintenance personnel.

[0023] The working principle of this utility model is as follows: When installing the surge arrester body 1, the insulating sleeve 3 at the bottom of the surge arrester body 1 fits into the mounting hole 9. The protrusion 17 in the mounting hole 9 is engaged in the groove 6 on the side wall of the insulating sleeve 3, so that the surge arrester body 1 remains stable. Holding the knob 14 drives the double threaded screw 13 to rotate, and during the rotation, it drives the two connecting plates 12 to move towards each other, so that the connecting plates 12 drive the positioning rod 11 to insert into the positioning hole 7 on the side wall of the insulating sleeve 3, thereby keeping the surge arrester body 1 fixed at the top of the fixed seat 4. When disassembling the surge arrester body 1, the positioning rod 11 slides out of the positioning hole 7 by rotating the knob 14 and the double threaded screw 13. Only the double threaded screw 13 needs to be rotated to disassemble and maintain the surge arrester body 1, which greatly reduces the time spent by maintenance personnel and improves the disassembly and assembly efficiency of the surge arrester body 1.

[0024] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A lightning arrester comprising a fixed seat (4) and a lightning arrester body (1) removably mounted on the fixed seat (4), characterized in that: The top end of the fixing base (4) is provided with a mounting base (10), the top end of the mounting base (10) is provided with a mounting hole (9) penetrating through the fixing base (4), one side of the mounting base (10) is rotatably provided with a double-threaded screw rod (13), both sides of the inner wall of the mounting hole (9) are provided with an expansion hole (8), and both ends of the double-threaded screw rod (13) are connected with a positioning rod (11) for fixing the lightning arrester body (1).

2. The surge arrester of claim 1, wherein: The lightning arrester body (1) comprises an insulating sleeve (3) and a lightning rod (2) fixed at both ends of the insulating sleeve (3), the side wall of the insulating sleeve (3) is symmetrically provided with a positioning hole (7), and the bottom end of the insulating sleeve (3) is provided with a groove (6).

3. The surge arrester of claim 1, wherein: A plurality of through holes (18) are formed in the fixing base (4), and a bolt (5) is embedded in the through hole (18) at the top end of the fixing base (4).

4. The surge arrester of claim 1, wherein: The side wall of the mounting base (10) is symmetrically provided with a connecting base (15), both ends of the double-threaded screw rod (13) are rotatably inserted into the connecting base (15), and a knob (14) is fixedly sleeved on the double-threaded screw rod (13).

5. The surge arrester of claim 4, wherein: Both ends of the double-threaded screw rod (13) are rotatably inserted into the connecting base (15), and a knob (14) is fixedly sleeved on the double-threaded screw rod (13).

6. The surge arrester of claim 2, wherein: Both ends of the double-threaded screw rod (13) are rotatably inserted into the connecting base (15), and a knob (14) is fixedly sleeved on the double-threaded screw rod (13).

7. The surge arrester of claim 2, wherein: Both ends of the double-threaded screw rod (13) are rotatably inserted into the connecting base (15), and a knob (14) is fixedly sleeved on the double-threaded screw rod (13). The bottom end of the insulating sleeve (3) is inserted into the mounting hole (9), and the inner wall of the mounting hole (9) is fixedly provided with a protrusion (17) matched with the groove (6). The positioning rod (11) is slidably inserted into the expansion hole (8), and the end of the positioning rod (11) inserted into the mounting hole (9) is inserted into the positioning hole (7).

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