Lightning protection device for distribution line

Abstract

The utility model relates to the technical field of line lightning protection, in particular to a lightning protection device for a distribution line, which comprises a base and lightning protection equipment, a support column is fixedly connected to the bottom of the base, a grounding wire is arranged in the support column, and the top of the grounding wire is connected with the lightning protection equipment. An insulating sleeve is fixedly connected to the interior of the lightning protection equipment, a circuit is arranged in the insulating sleeve, and a cleaning assembly is further fixedly connected to the outer side of the lightning protection equipment; according to the utility model, the cleaning assembly is arranged on the outer side of the lightning protection equipment, under the condition of strong wind blowing, external air blows the barrier plates, so that the air enters the hollow frame through the air inlet scoop, and the barrier plates at other positions are in a state of blocking the air inlet scoop under the condition of strong wind; the air enters the exhaust frame through the dispersion frame and the output pipe, and at the moment, the air can be vertically upward and used for blowing sundries upwards, the purpose of cleaning is achieved, and normal use of the lightning protection device is guaranteed.

Description

Technical Field

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

[0002] Distribution lines refer to the lines that send electricity from step-down substations to distribution transformers or from distribution substations to power users. The voltage of distribution lines is 3.6kv~40.5kV, which is called high-voltage distribution lines; the voltage of distribution lines does not exceed 1kV, the frequency does not exceed 1000Hz, and the DC does not exceed 1500V, which is called low-voltage distribution lines. The construction of distribution lines requires safety and reliability, maintaining power supply continuity, reducing line losses, improving transmission efficiency, and ensuring good power quality.

[0003] When installing the distribution line, a lightning protection device should be installed to avoid damage and burning of the line due to lightning strikes in thunderstorms. When installing and using the lightning protection device, sometimes strong winds will drive debris to flutter, such as plastic bags, cloth, etc. Once they are attached to the top of the lightning protection device, one side is in contact with the circuit. Once lightning strikes the lightning protection device, a short circuit is very likely to occur. Therefore, a lightning protection device for distribution lines is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a lightning protection device for a power distribution line to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] As an optional solution of the lightning protection device for power distribution lines described in the utility model, wherein: a lightning protection device for power distribution lines comprises a base and a lightning protection device,

[0007] The bottom of the base is fixedly connected to a support column, a grounding wire is arranged inside the support column, and the top of the grounding wire is connected to a lightning protection device, an insulating sleeve is fixedly connected inside the lightning protection device, a line is arranged inside the insulating sleeve, and a cleaning component is also fixedly connected to the outside of the lightning protection device;

[0008] The cleaning assembly includes a fixed frame, a hollow frame and a ventilation pipe, the bottom of the fixed frame is fixedly connected to the lightning protection device, the center of the fixed frame is fixedly connected to a hollow frame, the outer side of the hollow frame is connected to uniformly distributed ventilation pipes, the other end of the ventilation pipe is fixedly connected to an air inlet hopper, and the interior of the air inlet hopper is rotatably connected to a blocking plate;

[0009] The top of the hollow frame is fixedly connected with a dispersion frame, the top of the dispersion frame is connected with an output pipe, the other ends of the output pipe are connected with an exhaust frame, and the outer side of the exhaust frame is fixedly connected with the fixed frame.

[0010] A filter screen is fixedly connected to one side of the air inlet hopper facing away from the hollow frame.

[0011] When installing the distribution line, a lightning protection device must be installed to avoid damage and burning of the line due to lightning strikes during thunderstorms. When installing and using the lightning protection device, sometimes strong winds will cause debris to flutter, such as plastic bags, cloth, etc. Once they are attached to the top of the lightning protection device, one side is in contact with the circuit. Once lightning strikes the lightning protection device, a short circuit is very likely to occur. A cleaning component is set on the outside of the lightning protection device. When strong winds blow, the air outside the lightning protection device passes through the blowing blocking plate, allowing the air to enter the hollow frame through the air inlet hopper, while the blocking components at other positions In strong winds, the plate is in a state of blocking the air inlet hopper, and the air enters the exhaust frame through the dispersion frame and the output pipe. At this time, it can be blown vertically upward to blow debris upward for cleaning purposes, ensuring the normal use of the lightning protection device. At the same time, when lightning strikes the lightning protection device, its electrical energy can be introduced into the underground through the grounding wire to protect the line. The air inlet hoppers set in multiple directions allow wind to enter the hollow frame from all directions, thereby achieving stable cleaning of the lightning protection equipment, and the air inlet hoppers are equipped with filters inside to filter the external air.

[0012] As an optional solution of the lightning protection device for power distribution lines described in the utility model, the opening shape of the blocking plate is set in a rectangular shape, and the interior of the air inlet scoop is fixedly connected with a blocking block.

[0013] The rectangular opening of the blocking plate can ensure that the blocking block can rotate normally and that air can enter normally.

[0014] As an optional solution of the lightning protection device for distribution lines described in the utility model, the top of the exhaust frame is provided with exhaust holes, and two groups of rotating plates are rotatably connected inside the exhaust holes of each group of exhaust frames, and the bottom of the rotating plate is provided with a blocking platform fixedly connected to the exhaust frame.

[0015] As an optional solution of the lightning protection device for distribution lines described in the utility model, a raised block fixedly connected to the exhaust frame is arranged above the rotating plate, and the surface of the raised block is arranged in an arc shape.

[0016] When the air is discharged, the internal exhaust holes of the fixed frame are smaller, which can ensure the force of wind and help to effectively clean the impurities on the surface of the lightning protection equipment. When the air is discharged, the air can drive the rotating plate to rotate, thereby ensuring stable air discharge. In a windless state, the rotating plate cannot be in a vertical state due to the action of the protruding block, which helps the rotating plate to be in a horizontal state, preventing external dust from entering the exhaust frame.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a cleaning component on the outside of the lightning protection device. When strong wind blows, the air outside the device blows the blocking plate, so that the air enters the hollow frame through the air inlet hopper, while the blocking plates at other positions are in a state of blocking the air inlet hopper when strong wind blows. The air enters the exhaust frame through the dispersion frame and the output pipe, and can be blown vertically upward to blow away the debris upward for the purpose of cleaning, thereby ensuring the normal use of the lightning protection device.

[0019] This setting allows wind to enter the hollow frame from all directions, so as to stably clean the lightning protection equipment. The air inlet hopper is equipped with a filter to filter the external air.

[0020] When the air is discharged, the internal exhaust holes of the fixed frame are smaller, which can ensure the force of wind and help to effectively clean the impurities on the surface of the lightning protection equipment. When the air is discharged, the air can drive the rotating plate to rotate, thereby ensuring stable air discharge. In a windless state, the rotating plate cannot be in a vertical state due to the action of the protruding block, which helps the rotating plate to be in a horizontal state, preventing external dust from entering the exhaust frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the cleaning component of the utility model;

[0023] Figure 3 It is a cross-sectional view of the exhaust frame of the utility model;

[0024] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at A.

[0025] In the figure: 1, base; 2, lightning protection device; 3, insulating sleeve; 4, line; 5, support column; 6, grounding wire; 7, cleaning component; 701, fixed frame; 702, hollow frame; 703, ventilation pipe; 704, air inlet hopper; 705, blocking plate; 706, blocking block; 707, filter; 708, dispersion frame; 709, output pipe; 710, exhaust frame; 711, rotating plate; 712, blocking platform; 713, raised block. DETAILED DESCRIPTION

[0026] 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.

[0027] Example 1

[0028] See also Figure 1 and Figure 2 , the utility model provides a technical solution:

[0029] A lightning protection device for a power distribution line comprises a base 1 and a lightning protection device 2.

[0030] A support column 5 is fixedly connected to the bottom of the base 1, a grounding wire 6 is arranged inside the support column 5, and the top of the grounding wire 6 is connected to the lightning protection device 2, an insulating sleeve 3 is fixedly connected to the inside of the lightning protection device 2, a line 4 is arranged inside the insulating sleeve 3, and a cleaning component 7 is also fixedly connected to the outside of the lightning protection device 2;

[0031] The cleaning assembly 7 comprises a fixed frame 701, a hollow frame 702 and a ventilation pipe 703. The bottom of the fixed frame 701 is fixedly connected to the lightning protection device 2. The center of the fixed frame 701 is fixedly connected to the hollow frame 702. The outer side of the hollow frame 702 is connected to the ventilation pipe 703 which is evenly distributed. The other end of the ventilation pipe 703 is fixedly connected to the air inlet hopper 704. The interior of the air inlet hopper 704 is rotatably connected to a blocking plate 705.

[0032] The top of the hollow frame 702 is fixedly connected with a dispersion frame 708 , the top of the dispersion frame 708 is connected with an output pipe 709 , the other ends of the output pipe 709 are connected with an exhaust frame 710 , and the outer side of the exhaust frame 710 is fixedly connected with the fixed frame 701 .

[0033] A filter screen 707 is fixedly connected to one side of the air inlet scoop 704 facing away from the hollow frame 702 .

[0034] When installing the distribution line, a lightning protection device must be installed to avoid damage and burning of the line due to lightning strikes during thunderstorms. In addition, when installing and using the lightning protection device, sometimes strong winds will cause debris to flutter, such as plastic bags, cloth, etc. Once they are attached to the top of the lightning protection device, one side is in contact with the circuit. Once lightning strikes the lightning protection device, a short circuit is very likely to occur. A cleaning component 7 is provided on the outside of the lightning protection device 2. When strong winds blow, the air outside the lightning protection device blows the blocking plate 705, so that the air enters the hollow frame 702 through the air inlet hopper 704, while the blocking plates 705 at other positions are in a state of blocking the air inlet under strong winds. In the state of the air scoop 704, the air enters the exhaust frame 710 through the dispersion frame 708 and the output pipe 709. At this time, it can be vertically upward to blow debris upward for cleaning purposes, ensuring the normal use of the lightning protection device. At the same time, when the lightning protection device is struck by lightning, its electrical energy can be introduced into the underground through the grounding wire 6 to protect the line 4. The air inlet scoops 704 set in multiple directions can allow wind to enter the hollow frame 702 from all directions, thereby achieving stable cleaning of the lightning protection equipment, and the interior of the air inlet scoop 704 is provided with a filter 707, which is used to filter the external air to prevent larger impurities from entering.

[0035] Example 2

[0036] This embodiment is an improvement on embodiment 1. Figure 2 Specifically, the opening shape of the blocking plate 705 is rectangular, and the interior of the air inlet scoop 704 is fixedly connected with a blocking block 706 .

[0037] The rectangular opening of the blocking plate 705 can ensure that the blocking block 706 can rotate normally and ensure that air can enter normally.

[0038] Example 3

[0039] This embodiment is an improvement on embodiment 2. Figure 3 and Figure 4 Specifically, exhaust holes are opened on the top of the exhaust frame 710, and two groups of rotating plates 711 are rotatably connected inside the exhaust holes of each group of exhaust frames 710, and a blocking platform 712 fixedly connected to the exhaust frame 710 is provided at the bottom of the rotating plate 711.

[0040] A protruding block 713 fixedly connected to the exhaust frame 710 is disposed above the rotating plate 711 , and a surface of the protruding block 713 is arranged in an arc shape.

[0041] When the air is discharged, the internal exhaust holes of the fixed frame 701 are small, which can ensure the force of wind and help to effectively clean the impurities on the surface of the lightning protection device 2. When the air is discharged, the air can drive the rotating plate 711 to rotate, thereby ensuring stable air discharge. In a windless state, the rotating plate 711 cannot be in a vertical state due to the action of the protruding block 713, which helps the rotating plate 711 to be in a horizontal state, preventing external dust from entering the exhaust frame 710.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device for a power distribution line, characterized in that: It comprises a base (1) and a lightning protection device (2), The bottom of the base (1) is fixedly connected to a support column (5), a grounding wire (6) is arranged inside the support column (5), and the top of the grounding wire (6) is connected to the lightning protection device (2), the interior of the lightning protection device (2) is fixedly connected to an insulating sleeve (3), the interior of the insulating sleeve (3) is provided with a line (4), and the outer side of the lightning protection device (2) is also fixedly connected to a cleaning component (7); The cleaning assembly (7) comprises a fixed frame (701), a hollow frame (702) and a ventilation pipe (703); the bottom of the fixed frame (701) is fixedly connected to the lightning protection device (2); the center of the fixed frame (701) is fixedly connected to the hollow frame (702); the outer side of the hollow frame (702) is connected to uniformly distributed ventilation pipes (703); the other end of the ventilation pipe (703) is fixedly connected to an air inlet scoop (704); and the interior of the air inlet scoop (704) is rotatably connected to a blocking plate (705); The top of the hollow frame (702) is fixedly connected to a dispersion frame (708), the top of the dispersion frame (708) is connected to an output pipe (709), the other ends of the output pipe (709) are connected to an exhaust frame (710), and the outer side of the exhaust frame (710) is fixedly connected to the fixed frame (701).

2. A lightning protection device for a power distribution line according to claim 1, characterized in that: The opening shape of the blocking plate (705) is rectangular, and the interior of the air inlet scoop (704) is fixedly connected with a blocking block (706).

3. A lightning protection device for a power distribution line according to claim 1, characterized in that: A filter screen (707) is fixedly connected to one side of the air inlet scoop (704) facing away from the hollow frame (702).

4. A lightning protection device for a power distribution line according to claim 1, characterized in that: The top of the exhaust frame (710) is provided with an exhaust hole, and two groups of rotating plates (711) are rotatably connected inside the exhaust holes of each group of exhaust frames (710), and a blocking platform (712) fixedly connected to the exhaust frame (710) is provided at the bottom of the rotating plate (711).

5. A lightning protection device for a power distribution line according to claim 4, characterized in that: A protruding block (713) fixedly connected to the exhaust frame (710) is arranged above the rotating plate (711), and the surface of the protruding block (713) is arranged in the form of an arc surface.

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