Lightning protection device for outdoor power distribution cabinet

Abstract

The utility model discloses a lightning protection device for an outdoor power distribution cabinet, which comprises a diversion rod, the diversion rod is installed on the back of the power distribution cabinet through an insulation installation piece, the bottom of the diversion rod is provided with a down lead, the bottom of the down lead is provided with a grounding piece, and a main lightning rod is arranged in the diversion rod in an up-and-down sliding manner. Uniformly distributed grooves are formed in the upper end of the side surface of the main lightning arresting rod, rotating shafts are arranged at the lower ends of the interiors of the grooves, auxiliary lightning arresting rods which can be clamped in the grooves are rotationally arranged on the rotating shafts, and a positioning piece is mounted on the main lightning arresting rod. The lightning protection device for the outdoor power distribution cabinet adopts a telescopic structure, is convenient to transport and carry, and can adjust the height of the main lightning receiving rod according to the installation environment, thereby carrying out lightning protection on the power distribution cabinet, preventing electrical appliances in the internal power distribution cabinet from being damaged, avoiding fire disasters, protecting electric power facilities, and being convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a lightning protection device for an outdoor power distribution cabinet. Background Art

[0002] Outdoor power distribution cabinet is a kind of power distribution equipment used in outdoor environment, usually installed at the access point of outdoor power supply network or where power needs to be distributed. It is usually made of metal or plastic, with waterproof, dustproof and corrosion-resistant properties to protect the internal electrical equipment from the external environment. Outdoor power distribution cabinet usually includes circuit breakers, contactors, relays, transformers and other electrical equipment, which are used to step down the high-voltage transmission line and distribute it to various users or equipment.

[0003] As an important part of the power system, the distribution cabinet is usually placed in an outdoor environment to facilitate power distribution and control. However, in an open, flat and high-altitude outdoor environment, the distribution cabinet is vulnerable to the threat of lightning strikes, which may cause a short circuit in the internal circuit of the distribution cabinet and may even cause a fire, posing a serious threat to power facilities. Therefore, how to effectively prevent the impact of lightning on outdoor distribution cabinets is an urgent problem to be solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an outdoor distribution cabinet lightning protection device, which adopts a retractable structure, is convenient for transportation and carrying, and can adjust the height of the main lightning rod according to the installation environment, so as to provide lightning protection for the distribution cabinet, avoid damage to the internal electrical appliances of the internal distribution cabinet, and avoid fire, can play a protective role for power facilities, is easy to use, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightning protection device for an outdoor distribution cabinet, comprising a guide rod, which is installed on the back of the distribution cabinet through an insulating mounting member, a down conductor is provided at the bottom of the guide rod, and a grounding plate is provided at the bottom of the down conductor. A main lightning rod is provided inside the guide rod for sliding up and down, and evenly distributed grooves are provided at the upper end of the side surface of the main lightning rod, a rotating shaft is provided at the lower end of the groove, and an auxiliary lightning rod that can be clamped in the groove is rotatably provided on the rotating shaft, and a positioning member is installed on the main lightning rod.

[0006] As a preferred technical solution of the utility model, the insulating mounting part includes an insulating mounting plate, and a curved insulating plate arranged at the same height as the insulating mounting plate is provided on the side of the insulating mounting plate corresponding to the guide rod, and the inner curved surface of the curved insulating plate is provided with a mounting seat connected to the guide rod.

[0007] As a preferred technical solution of the utility model, the top of the insulating mounting plate is higher than the top of the distribution cabinet.

[0008] As a preferred technical solution of the utility model, the insulating mounting plate is provided with evenly distributed mounting holes.

[0009] As a preferred technical solution of the utility model, the positioning piece includes a metal ball, the side of the main lightning rod corresponding to the lower half of the groove, and the side of the main lightning rod located at the lower part of the groove are provided with threads, and the metal ball is threadedly connected to the main lightning rod.

[0010] As a preferred technical solution of the utility model, a fastening bolt is threadedly connected inside the screw hole at the upper end of the side surface of the guide rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The lightning protection device for an outdoor power distribution cabinet in the example of the utility model adopts a retractable structure, which is convenient for transportation and carrying. The height of the main lightning rod can be adjusted according to the installation environment, thereby providing lightning protection for the power distribution cabinet, avoiding damage to the internal electrical appliances of the internal distribution cabinet, and avoiding fire. It can protect the power facilities and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model when installed.

[0016] In the figure: 1 insulating mounting plate, 2 arc-shaped insulating plate, 21 mounting seat, 3 guide rod, 31 fastening bolt, 32 down conductor, 33 grounding plate, 4 main lightning rod, 41 groove, 5 auxiliary lightning rod, 51 rotating shaft, 6 metal ball. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] See also Figure 1-3The utility model provides a technical solution: an outdoor distribution cabinet lightning protection device, comprising a guide rod 3, the guide rod 3 is installed on the back of the distribution cabinet through an insulating mounting piece, a down conductor 32 is provided at the bottom of the guide rod 3, a grounding plate 33 is provided at the bottom of the down conductor 32, a main lightning rod 4 is slidably arranged inside the guide rod 3, a side upper end of the main lightning rod 4 is provided with evenly distributed grooves 41, a rotating shaft 51 is provided at the lower end of the groove 41, and an auxiliary lightning rod 5 that can be snapped into the groove 41 is rotatably arranged on the rotating shaft 51. When there is lightning, under the action of the main lightning rod 4 and the auxiliary lightning rod 5, the lightning current is introduced into the earth through the guide rod 3 and the down conductor 32, thereby protecting the distribution cabinet from lightning strikes. A positioning piece is installed on the main lightning rod 4, and the opening degree of the auxiliary lightning rod 5 can be adjusted by the positioning piece, which is convenient for storage and carrying. At the same time, the auxiliary lightning rod 5 with an open opening can increase the protection range.

[0019] Furthermore, the insulating mounting part includes an insulating mounting plate 1, and a curved insulating plate 2 which is arranged at the same height as the insulating mounting plate 1 is provided on one side of the insulating mounting plate 1 corresponding to the guide rod 3. The inner curved surface of the curved insulating plate 2 is provided with a mounting seat 21 connected to the guide rod 3, which can play a role of insulating protection between the flash protector and the distribution cabinet.

[0020] Furthermore, the top of the insulating mounting plate 1 is higher than the top of the power distribution cabinet.

[0021] Furthermore, evenly distributed mounting holes are provided on the insulating mounting plate 1 to facilitate the installation and fixation of the insulating mounting plate 1 .

[0022] Furthermore, the positioning member includes a metal ball 6, which can increase the effective area of ​​the lightning rod. It can eliminate static electricity in the air by discharging, reduce the probability of lightning hitting the lightning rod, and thus protect the distribution cabinet. The side surface of the main lightning rod 4 corresponding to the lower half of the groove 41, and the side surface of the main lightning rod 4 located at the lower part of the groove 41 are provided with threads, and the metal ball 6 is threadedly connected to the main lightning rod 4. When the position of the metal ball 6 is rotated, the auxiliary lightning rod 5 is moved out of the groove 41 during the downward movement of the metal ball 6 along the main lightning rod 4, and slowly expands outward while the metal ball 6 moves downward, which can increase the protection area and improve the protection effect of the distribution cabinet.

[0023] Furthermore, a fastening bolt 31 is threadedly connected to the screw hole at the upper end of the side of the guide rod 3, and the main lightning rod 4 is pulled up to a certain height, and the fastening bolt 31 is rotated to fix the main lightning rod 4, thereby adjusting the height of the entire lightning receptor.

[0024] When using:

[0025] Install the insulating mounting plate 1 with mounting holes on the back of the power distribution cabinet, and make the top of the insulating mounting plate 1 higher than the distance of one end of the top of the power distribution cabinet;

[0026] Pull up the main lightning rod 4 to a certain height, and turn the fastening bolts 31 to fix the main lightning rod 4;

[0027] The position of the metal ball 6 is rotated. When the metal ball 6 moves downward along the main lightning rod 4, the auxiliary lightning rod 5 moves out of the groove 41 and slowly expands outwards as the metal ball 6 moves downward.

[0028] The grounding plate 33 is buried underground or connected to an underground grounding device;

[0029] When lightning occurs, under the action of the main lightning rod 4 and the auxiliary lightning rod 5, the lightning current is introduced into the earth through the guide rod 3 and the down conductor 32, thereby protecting the distribution cabinet from being struck by lightning.

[0030] The utility model adopts a retractable structure, which is convenient for transportation and carrying. The height of the main lightning rod 4 can be adjusted according to the installation environment, so as to protect the distribution cabinet from lightning strikes, avoid damage to the internal electrical appliances of the distribution cabinet, and avoid fire. It can protect the power facilities and is easy to use.

[0031] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A lightning protection device for an outdoor power distribution cabinet, comprising a guide rod (3), wherein the guide rod (3) is mounted on the back of the power distribution cabinet through an insulating mounting member, and wherein: A down conductor (32) is provided at the bottom of the guide rod (3), a grounding plate (33) is provided at the bottom of the down conductor (32), a main lightning rod (4) is slidably arranged inside the guide rod (3) up and down, evenly distributed grooves (41) are provided at the upper end of the side surface of the main lightning rod (4), a rotating shaft (51) is provided at the lower end of the groove (41), and an auxiliary lightning rod (5) that can be engaged in the groove (41) is rotatably arranged on the rotating shaft (51), and a positioning piece is installed on the main lightning rod (4).

2. The outdoor power distribution cabinet lightning protection device according to claim 1 is characterized in that: The insulating mounting member comprises an insulating mounting plate (1), a side of the insulating mounting plate (1) corresponding to the flow guide rod (3) being provided with an arc-shaped insulating plate (2) arranged at the same height as the insulating mounting plate (1), and an inner arc-shaped surface of the arc-shaped insulating plate (2) being provided with a mounting seat (21) connected to the flow guide rod (3).

3. The outdoor power distribution cabinet lightning protection device according to claim 2 is characterized in that: The top of the insulating mounting plate (1) is higher than the top of the power distribution cabinet.

4. The outdoor power distribution cabinet lightning protection device according to claim 2 is characterized in that: The insulating mounting plate (1) is provided with evenly distributed mounting holes.

5. The outdoor power distribution cabinet lightning protection device according to claim 1 is characterized in that: The positioning member comprises a metal ball (6), the side surface of the main lightning rod (4) corresponding to the lower half of the groove (41) and the side surface of the main lightning rod (4) located at the lower part of the groove (41) are provided with threads, and the metal ball (6) is threadedly connected to the main lightning rod (4).

6. The outdoor power distribution cabinet lightning protection device according to claim 1 is characterized in that: A fastening bolt (31) is threadedly connected inside the screw hole at the upper end of the side surface of the guide rod (3).

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