Lightning protection grounding protection system of high-voltage power line

Abstract

The utility model discloses a lightning protection grounding protection system of a high voltage electric power circuit, comprising a lightning protection unit which comprises two connecting plates and two connecting wires, the two connecting wires are respectively fixedly connected with the two connecting plates through bolts, the same sides of the two connecting plates are fixedly connected with a plurality of grounding leads through bolts, and a bunching unit, the device comprises connecting rings arranged on a grounding wire in a sleeving mode, the multiple connecting rings are vertically distributed at equal intervals, cylinders are fixedly connected to one sides of the multiple connecting rings, the bottoms of the multiple cylinders are in threaded connection with ball head rods, and ball head sleeves are arranged at the bottoms of the ball head rods in a sliding mode. According to the utility model, a certain interval is kept between the broken grounding lead and the other grounding leads through the connecting ring, and the broken grounding lead is not contacted with the other grounding leads through the ball head rod and the ball head sleeve, so that the other grounding leads can normally play a role in lightning protection and grounding protection.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection and grounding protection systems, in particular to a lightning protection and grounding protection system for high-voltage power lines. Background Art

[0002] The lightning protection and grounding protection of high-voltage power lines is achieved by grounding the metal shells of electrical equipment, etc., to ensure personal safety. Grounding protection is a protection wiring method. In terms of lightning protection, the grounding resistance value is usually between 0 - 5 - 10 Ω to ensure that the current can effectively flow into the ground, thereby reducing the potential hazards of lightning to equipment and personnel. In addition, in order to more effectively prevent direct lightning strikes, devices such as lightning arresters and lightning conductors are also used. These devices guide the lightning current to their own grounding devices, discharging the lightning current into the ground, and protecting electrical equipment, lines, buildings, and items within the protection range from lightning damage.

[0003] High-voltage power towers are often set up in rural areas and remote areas of towns. The power towers are protected against lightning and high-voltage wires through lightning rods and grounding wires. The grounding leads used to guide lightning to the ground usually adopt a method of multiple leads as a group. Multiple grounding wires are arranged at equal intervals and connected to the transformer, thereby guiding the current caused by lightning to the ground.

[0004] When the high-voltage power tower is set outdoors, the grounding leads connected by bolts will be eroded by rainwater, resulting in a reduction in the strength of the connection ends of the grounding leads and an increase in their resistance. The eroded connection ends may not be able to withstand the strong current of lightning, and then the grounding leads may be burned and broken. The broken grounding leads will wrap around the surface of other grounding leads, which will cause a chain reaction, resulting in all the grounding leads being burned together and losing the function of lightning protection. Therefore, a lightning protection and grounding protection system for high-voltage power lines is proposed. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problems existing in the above-mentioned existing lightning protection and grounding protection system for high-voltage power lines, the present utility model is proposed.

[0007] Therefore, the purpose of the present utility model is to provide a lightning protection and grounding protection system for high-voltage power lines, which is suitable for solving the problem that the connection end of the grounding lead will be eroded by rainwater, and the eroded connection end may not be able to withstand the strong current of lightning, resulting in the grounding lead being burned and broken, thus losing the lightning protection function.

[0008] To solve the above technical problems, the present utility model provides the following technical solutions: A lightning protection and grounding protection system for high-voltage power lines, comprising:

[0009] A lightning protection unit, which includes two connecting plates and two connecting wires. The two connecting wires are respectively fixedly connected to the two connecting plates by bolts, and a plurality of grounding wires are fixedly connected together by bolts on the same side of the two connecting plates;

[0010] A wire bundling unit, which includes connecting rings sleeved on the grounding wires. The plurality of connecting rings are vertically and equidistantly distributed. A cylinder is fixedly connected to one side of each of the plurality of connecting rings. A ball head rod is threadedly connected to the bottom of each of the plurality of cylinders. A ball head sleeve is slidably arranged at the bottom of the ball head rod, and the bottom end of the ball head sleeve is threadedly connected to one side of the connecting ring. The ball head sleeve at the bottommost part is not connected to a connecting ring, and the connecting ring at the topmost part is not connected to a ball head sleeve.

[0011] As a preferred solution of the lightning protection and grounding protection system for high-voltage power lines of the present utility model, wherein: A regulating rod is threadedly connected to one side of each connecting ring. The end of the regulating rod penetrates through the connecting ring, and an arc-shaped plate is rotatably connected to the end of the regulating rod.

[0012] As a preferred solution of the lightning protection and grounding protection system for high-voltage power lines of the present utility model, wherein: An insulating sleeve is sleeved on the grounding wire. A linear groove is formed on one side of the insulating sleeve, and the arc-shaped plate is in contact with the insulating sleeve.

[0013] As a preferred solution of the lightning protection and grounding protection system for high-voltage power lines of the present utility model, wherein: Two pairs of V-shaped plates are symmetrically and fixedly connected to one side of the insulating sleeve. One pair of V-shaped plates are respectively located on both sides of the linear groove, and the connecting ring is located between the two pairs of V-shaped plates.

[0014] As a preferred solution of the lightning protection and grounding protection system for high-voltage power lines of the present utility model, wherein: A plurality of cross plates are fixedly connected between the opposite surfaces of the two connecting plates. A spring is fixedly connected to one side of each cross plate, and a disc is fixedly connected to the end of the spring away from the cross plate.

[0015] As a preferred solution of the lightning protection and grounding protection system for a high-voltage power line described in the present utility model, wherein: the wafer is in contact with the connecting ring, and a plurality of flow guiding plates are fixedly connected to the same side of the two connecting plates, and the shape of the flow guiding plate is set in a Z shape.

[0016] Advantages of the present utility model: When one of the connection ends of the grounding wire is burned and broken, the broken grounding wire is kept at a certain interval from the remaining grounding wires through the connecting ring, and the broken grounding wire can deflect within a certain degree of freedom through the ball head rod and the ball head sleeve, and the broken grounding wire will not contact other grounding wires, so as to prevent the broken grounding wire from burning other grounding wires together, so that the remaining grounding wires can normally play the role of lightning protection and grounding protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the lightning protection and grounding protection system for a high-voltage power line proposed by the present utility model;

[0019] Figure 2 It is a schematic diagram of the connection structure between the spring and the wafer proposed by the present utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the adjusting rod and the arc-shaped plate proposed by the present utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the insulating sleeve and the V-shaped plate proposed by the present utility model.

[0022] BRIEF DESCRIPTION OF THE DRAWINGS: 100. Lightning protection unit; 101. Connecting plate; 102. Connecting wire; 103. Grounding wire; 104. Horizontal plate; 105. Spring; 106. Wafer; 107. Flow guiding plate; 200. Wire bundling unit; 201. Connecting ring; 202. Cylinder; 203. Ball head rod; 204. Ball head sleeve; 205. Adjusting rod; 206. Arc-shaped plate; 207. Insulating sleeve; 208. Linear slot; 209. V-shaped plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings in the specification.

[0024] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures, or characteristics that may be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive with other embodiments.

[0026] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the sake of convenience in explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0027] Embodiment

[0028] Refer to Figure 1 - Figure 4 , which is an embodiment of the present utility model, provides a lightning protection grounding protection system for high-voltage power lines, including: a lightning protection unit 100 and a wire bundling unit 200;

[0029] Among them, the lightning protection unit 100 includes two connecting plates 101 and two connecting wires 102. The two connecting wires 102 are respectively fixedly connected to the two connecting plates 101 by bolts. A plurality of grounding wires 103 are fixedly connected together by bolts on the same side of the two connecting plates 101;

[0030] The wire bundling unit 200 includes connection rings 201 sleeved on the grounding wires 103. A plurality of connection rings 201 are vertically and equidistantly distributed. One side of each of the plurality of connection rings 201 is fixedly connected with a cylinder 202. The bottoms of the plurality of cylinders 202 are all threadedly connected with ball head rods 203. A ball head sleeve 204 is slidably arranged at the bottom of the ball head rod 203. The bottom end of the ball head sleeve 204 is threadedly connected to one side of the connection ring 201. The ball head sleeve 204 at the bottommost part is not connected to a connection ring 201, and the connection ring 201 at the topmost part is not connected to a ball head sleeve 204.

[0031] Two connecting plates 101 are used to connect the current for the grounding wire 103 and serve as conductors for the two connecting wires 102. The connecting plates 101 are fixed on the high-voltage power tower by means of bolts or welding. One of the connecting wires 102 is connected to the lightning rod of the transformer, and the other connecting wire 102 is connected to the grounding wire fixed on the ground. When lightning strikes the high-voltage power tower, the connecting wire 102 connected to the lightning rod disperses the current to multiple grounding wires 103, and the multiple grounding wires 103 guide the current to the ground through the connecting wire 102 connected to the grounding wire, thus playing a lightning protection role for the high-voltage power line;

[0032] Before installing the connecting wire 102, the connecting ring 201 is sleeved on the connection. In the actual process, the number of connecting rings 201 can be increased according to the length of the connecting wire 102. There is no unique limit on the number here. By rotating the ball head rod 203, the distance between the ball head rod 203 and the cylinder 202 can be adjusted according to the interval between the two grounding wires 103. By rotating the ball head rod 203 and the ball head sleeve 204, it can be removed from the cylinder 202 and the connecting ring 201 together. Through the cylinder 202, the ball head rod 203 and the ball head sleeve 204, the interval between adjacent two grounding wires 103 can be maintained;

[0033] When one of the grounding wires 103 is burned and fused due to excessive current, causing the connection end of the grounding wire 103 and the connecting plate 101 to generate high temperature, the grounding wire 103 will be pulled by the adjacent grounding wire 103, and through the cylinder 202, the ball head rod 203 and the ball head sleeve 204, the broken grounding wire 103 will not directly contact other grounding wires 103 vertically. Through the ball head rod 203 and the ball head sleeve 204, the broken grounding wire 103 can deflect with a certain degree of freedom, so that the broken end of the grounding wire 103 is further away from other grounding wires 103, thus avoiding the broken grounding wire 103 from connecting other grounding wires 103 in series, resulting in too high voltage of other grounding wires 103 and a series of burning chain reactions. Therefore, the remaining grounding wires 103 can normally play a lightning protection and grounding role for the high-voltage power line.

[0034] In addition, one side of each connecting ring 201 is threadedly connected with an adjusting rod 205. The end of the adjusting rod 205 penetrates through the connecting ring 201. The end of the adjusting rod 205 is rotatably connected with an arc-shaped plate 206. An insulating sleeve 207 is sleeved on the grounding wire 103. One side of the insulating sleeve 207 is provided with a straight slot 208. The arc-shaped plate 206 is in contact with the insulating sleeve 207. Two pairs of V-shaped plates 209 are symmetrically and fixedly connected to one side of the insulating sleeve 207. One pair of V-shaped plates 209 are respectively located on both sides of the straight slot 208. The connecting ring 201 is located between the two pairs of V-shaped plates 209.

[0035] The grounding wire 103 can be protected through the insulating sleeve 207, so that the broken grounding wire 103 will not generate an electric arc with other grounding wires 103. The insulating sleeve 207 can be quickly installed on the surface of the grounding wire 103 through the straight slot 208, and it is convenient to remove the insulating sleeve 207. By rotating the adjusting rod 205, the arc-shaped plate 206 is close to the insulating sleeve 207. Thus, not only can the reinforcing connection ring 201 be fixed so that it tightly clamps on the outer circle of the grounding wire 103, but also the insulating sleeve 207 can be prevented from slipping on the grounding wire 103. The rainwater on the grounding wire 103 can be diverted by two groups of symmetric V-shaped plates 209, so that the rainwater on the surface of the insulating sleeve 207 will not drip onto the insulating sleeve 207 below, thereby reducing the erosion of the grounding wire 103 by rainwater.

[0036] Furthermore, a plurality of cross plates 104 are fixedly connected between the opposite surfaces of the two connecting plates 101. One side of each cross plate 104 is fixedly connected with a spring 105. The end of the spring 105 far from the cross plate 104 is fixedly connected with a round plate 106. The round plate 106 is in contact with the connection ring 201. A plurality of flow guide plates 107 are fixedly connected to the same side of the two connecting plates 101. The shape of the flow guide plate 107 is set in a Z shape.

[0037] The spring 105 is in a tense state and presses the round plate 106 to be in contact with the connection ring 201. When the grounding wire 103 breaks, the spring 105 pushes the grounding wire 103 to deflect through the round plate 106, so that the burned end is far away from other grounding wires 103, thus avoiding burning other grounding wires 103 together. The flow guide plate 107 is located above the connection between the grounding wire 103 and the connecting plate 101. Through the flow guide plate 107, not only can direct sunlight be prevented, but also the rainwater above the grounding wire 103 can be intercepted and drained to a position away from the grounding wire 103.

[0038] During use, slip the insulating sleeve 207 over the grounding wire 103, then slip the connecting ring 201 over the insulating sleeve 207. Next, rotate the adjusting rod 205 so that its arc-shaped plate 206 fits tightly against the insulating sleeve 207. Subsequently, install multiple grounding wires 103 between the two connecting plates 101. Adjacent connecting rings 201 are connected to each other through the rotating ball-head rod 203 and the ball-head sleeve 204. When one of the grounding wires 103 is overloaded due to excessive current, the connection end of this grounding wire 103 to the connecting plate 101 is burned and melted due to the high temperature. Subsequently, the spring 105 pushes the grounding wire 103 to deflect through the round plate 106. On the melted grounding wire 103, it can be kept spaced from other grounding wires 103 through the cylinder 202, the ball-head rod 203, and the ball-head sleeve 204. And through the ball-head rod 203 and the ball-head sleeve 204, the melted grounding wire 103 is deflected so that the end of the burned grounding wire 103 is far from other grounding wires 103, thereby preventing other grounding wires 103 from being burned together, enabling the remaining grounding wires 103 to normally provide lightning protection and grounding for the high-voltage power line.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A lightning protection grounding system for high voltage power lines, characterized in that: include: A lightning protection unit (100), comprising two connection plates (101) and two connection wires (102), wherein the two connection wires (102) are respectively fixedly connected to the two connection plates (101) by bolts, and a plurality of grounding wires (103) are fixedly connected to the same side of the two connection plates (101) by bolts; A wiring harness unit (200) comprises a connecting ring (201) sleeved on a grounding wire (103), wherein a plurality of the connecting rings (201) are vertically equidistantly distributed, a cylinder (202) is fixedly connected to one side of the plurality of connecting rings (201), a ball head rod (203) is threadedly connected to the bottom of the plurality of cylinders (202), a ball head sleeve (204) is slidably provided at the bottom of the ball head rod (203), the bottom end of the ball head sleeve (204) is threadedly connected to one side of the connecting ring (201), the ball head sleeve (204) at the bottom is not connected to the connecting ring (201), and the connecting ring (201) at the top is not connected to the ball head sleeve (204).

2. A lightning protection grounding protection system for high-voltage power lines according to claim 1, characterized in that: One side of each connecting ring (201) is threadedly connected to an adjusting rod (205), the end of the adjusting rod (205) passes through the connecting ring (201), and the end of the adjusting rod (205) is rotatably connected to an arc-shaped plate (206).

3. A lightning protection grounding protection system for high-voltage power lines according to claim 2, characterized in that: An insulating sleeve (207) is sleeved on the grounding wire (103), a straight groove (208) is provided on one side of the insulating sleeve (207), and the arc plate (206) and the insulating sleeve (207) are in contact with each other.

4. A lightning protection grounding protection system for high-voltage power lines according to claim 3, characterized in that: Two pairs of V-shaped plates (209) are symmetrically fixedly connected to one side of the insulating sleeve (207), and the pair of V-shaped plates (209) are respectively located on both sides of the I-shaped groove (208), and the connecting ring (201) is located between the two pairs of V-shaped plates (209).

5. The lightning protection grounding system for high-voltage power lines according to claim 1 is characterized in that: A plurality of transverse plates (104) are fixedly connected between opposite surfaces of the two connecting plates (101), a spring (105) is fixedly connected to one side of each transverse plate (104), and a disc (106) is fixedly connected to one end of the spring (105) away from the transverse plate (104).

6. A lightning protection grounding protection system for high-voltage power lines according to claim 5, characterized in that: The disc (106) and the connecting ring (201) are in contact with each other, and a plurality of guide plates (107) are fixedly connected to the same side of the two connecting plates (101), and the guide plates (107) are arranged in a Z-shape.

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