Lightning protection grounding structure of power box

Abstract

The utility model discloses a lightning protection grounding structure of a power box, which is applied to the field of grounding structures and comprises a fixed plate, a first cylinder body is fixedly sleeved in the fixed plate, a second cylinder body is in threaded connection with the surface of the first cylinder body, and a grounding lead is slidably placed in the first cylinder body. The two ends of the grounding wire are respectively provided with a wire ring, the bottom of the second cylinder body is provided with a base, the top of the base is provided with a through groove communicated with the second cylinder body, a threaded rod is welded in the base, the surface of the threaded rod is in threaded connection with a fixing nut, and the surface of the threaded rod is sleeved with a spring washer. The grounding structure has the advantages that the external protection effect is good, the penetrating-out section of the wire can be prevented from being damaged, the service life of the grounding structure is prolonged, the safety is good, the height adjusting function is achieved, the grounding structure is suitable for power boxes with different ground clearances, the operation is simple and convenient, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of grounding structures, and particularly relates to a lightning protection grounding structure for a power supply box. Background Art

[0002] At present, Chinese utility model with publication number CN221379756U discloses a lightning protection grounding structure for a power supply box. Aiming at the problem that the power connection wires of the existing lightning protection grounding structure for a power supply box are usually connected to a grounding device by connection methods such as bolts, welding or plugging and unplugging, resulting in inconvenience in replacing the power connection device, the following solution is now proposed. It includes a power supply box body and a grounding installation plate. A power connection wire is communicated with the bottom of the power supply box body. One end of the power connection wire is fixedly installed with a plug board. A metal connection plate is arranged on one side of the plug board. A slot is opened on one side of the grounding installation plate. The plug board is movably clamped in the slot. Built-in grooves are opened on the top inner wall and the bottom inner wall of the slot. The structure design of the utility model is reasonable. The fixed connection between the plug and the slot is realized through the cooperation of a cross plate, a square plate and the built-in part, replacing the traditional connection methods such as bolts, welding or plugging and unplugging, facilitating the replacement of different grounding devices, and having high reliability;

[0003] The existing grounding structure is composed of a grounding wire and a conductor in contact with the ground. Although the high voltage and high current generated by the power supply box can be guided into the ground through the wire connection with the power supply box, there are still other problems in the use process. For example, the external protection effect is poor. The wire body from the inside of the power supply box to the ground is in a naked state without any external protection. When the wire body is jolted and pulled by a sharp object due to external factors, it is extremely easy to be damaged, and the safety is poor. Moreover, when the grounding ring is soaked in water, it will also affect its own service life. In order to solve the above problems, we propose a lightning protection grounding structure for a power supply box. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lightning protection grounding structure for a power supply box, which solves the problem that the existing lightning protection grounding structure has poor external protection effect and is easy to be damaged.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A lightning protection grounding structure for a power supply box includes a fixing plate. A first cylinder body is fixedly sleeved inside the fixing plate. A second cylinder body is threadedly connected to the surface of the first cylinder body. A grounding wire is slidably placed inside the first cylinder body. Wire rings are respectively installed at both ends of the grounding wire. A base is installed at the bottom of the second cylinder body. A through groove communicating with the second cylinder body is opened on the top of the base. A threaded rod is welded inside the base. A fixing nut is threadedly connected to the surface of the threaded rod. A spring washer is sleeved on the surface of the threaded rod. The spring washer is located between the wire ring and the fixing nut.

[0006] By adopting the above technical solution, it is possible to achieve good external protection effect, avoid damage to the penetrating section of the wire, improve the service life of the grounding structure, have good safety, and at the same time be able to have a height adjustment function, be applicable to power boxes with different ground clearances, be simple and convenient to operate, and have high practicality.

[0007] The present utility model is further configured as: two mounting holes are provided at the top of the fixing plate.

[0008] By adopting the above technical solution, through the setting of the mounting holes, it is convenient for personnel to fix the fixing plate at the bottom of the power box with screws.

[0009] The present utility model is further configured as: an insulating anti-slip sleeve is fixedly sleeved on the surface of the second barrel body.

[0010] By adopting the above technical solution, through the setting of the insulating anti-slip sleeve, the frictional force between the human hand and the surface of the second barrel body can be increased.

[0011] The present utility model is further configured as: a transparent observation plate is embedded on the front surface of the base.

[0012] By adopting the above technical solution, through the setting of the transparent observation plate, it is convenient for personnel to observe the fixing situation inside the base.

[0013] The present utility model is further configured as: the threaded rod, the fixing nut and the spring washer are all made of stainless steel.

[0014] By adopting the above technical solution, the threaded rod, the fixing nut and the spring washer have the characteristics of high strength, low density and excellent corrosion resistance.

[0015] The present utility model is further configured as: the base is made of galvanized flat iron.

[0016] By adopting the above technical solution, the base has high strength, light structure and good anti-corrosion and rust-proof effects.

[0017] The present utility model is further configured as: the inner diameter of the first barrel body is larger than the diameter of the wire loop.

[0018] By adopting the above technical solution, the wire loops at both ends of the grounding wire can pass smoothly through the inside of the first barrel body.

[0019] In summary, the present utility model has the following beneficial effects:

[0020] 1. The utility model first picks up the fixing plate and places it at the opening under the power supply box, then fixes the fixing plate from below with screws. After the fixing plate is fixed, the wire loop at one end of the grounding wire is passed downward through the opening inside the power supply box. After the wire loop passes through, it is lowered so that it enters the base through the first barrel body. Finally, the wire loop and the spring washer are sleeved on the threaded rod in sequence and tightened with a fixing nut, which can achieve good external protection effect, avoid damage to the passing-out section of the wire, improve the service life of the grounding structure, and have good safety;

[0021] 2. The utility model rotates by holding the insulating anti-slip sleeve by hand. When the insulating anti-slip sleeve rotates, it will drive the second barrel body to rotate. Since the second barrel body is threadedly connected with the first barrel body when rotating, it will move downward. When the second barrel body moves downward, it will drive the base to move downward together until it is completely attached to the ground. Finally, the wire loop at the other end of the grounding wire in the power supply box is fixed to the box frame, which can have a height adjustment function, be suitable for power supply boxes with different ground clearances, and is simple and convenient to operate with high practicability. Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the structure of the utility model;

[0023] Figure 2 is a front sectional view of the structure of the utility model;

[0024] Figure 3 is the utility model Figure 2 magnified view of the structure at A in.

[0025] Reference numerals: 1, fixing plate; 2, first barrel body; 3, second barrel body; 4, grounding wire; 5, wire loop; 6, base; 7, through groove; 8, threaded rod; 9, fixing nut; 10, spring washer; 11, mounting hole; 12, insulating anti-slip sleeve; 13, transparent observation plate. Detailed Description of the Embodiment

[0026] The following further details the present utility model with reference to the drawings.

[0027] Embodiment 1:

[0028] Refer to Figure 1 、 Figure 2 and Figure 3, a lightning protection and grounding structure for a power supply box, including a fixing plate 1. A first cylinder body 2 is fixedly sleeved inside the fixing plate 1. A second cylinder body 3 is threadedly connected to the surface of the first cylinder body 2. A grounding wire 4 is slidably placed inside the first cylinder body 2. Wire loops 5 are respectively installed at both ends of the grounding wire 4. A base 6 is installed at the bottom of the second cylinder body 3. By holding the insulating anti-slip sleeve 12 with the hand and rotating it, the insulating anti-slip sleeve 12 will drive the second cylinder body 3 to rotate when rotating. When the second cylinder body 3 rotates, it will move downward because it is threadedly connected to the first cylinder body 2. When the second cylinder body 3 moves downward, it will drive the base 6 to move downward together until it is completely in contact with the ground. Finally, fix the wire loop 5 at the other end of the grounding wire 4 in the power supply box to the box frame. It can have a height adjustment function, be suitable for power supply boxes with different ground clearances, and is simple and convenient to operate with high practicality.

[0029] Reference Figure 1 and Figure 2 , two mounting holes 11 are opened at the top of the fixing plate 1. Through the setting of the mounting holes 11, it is convenient for personnel to fix the fixing plate 1 to the bottom of the power supply box with screws.

[0030] Reference Figure 1 and Figure 2 , an insulating anti-slip sleeve 12 is fixedly sleeved on the surface of the second cylinder body 3. Through the setting of the insulating anti-slip sleeve 12, the frictional force between the human hand and the surface of the second cylinder body 3 can be increased.

[0031] Reference Figure 2 , the inner diameter of the first cylinder body 2 is larger than the diameter of the wire loop 5, which enables the wire loops 5 at both ends of the grounding wire 4 to pass smoothly through the inside of the first cylinder body 2.

[0032] Brief description of the usage process: By holding the insulating anti-slip sleeve 12 with the hand and rotating it, the insulating anti-slip sleeve 12 will drive the second cylinder body 3 to rotate when rotating. When the second cylinder body 3 rotates, it will move downward because it is threadedly connected to the first cylinder body 2. When the second cylinder body 3 moves downward, it will drive the base 6 to move downward together until it is completely in contact with the ground. Finally, fix the wire loop 5 at the other end of the grounding wire 4 in the power supply box to the box frame.

[0033] Embodiment 2:

[0034] Reference Figure 1 , Figure 2 and Figure 3, a lightning protection grounding structure for a power supply box, a through groove 7 connected to the second barrel 3 is opened on the top of the base 6, a threaded rod 8 is welded inside the base 6, and a fixing nut 9 is threadedly connected to the surface of the threaded rod 8, and a spring washer 10 is sleeved on the surface of the threaded rod 8, and the spring washer 10 is located between the wire ring 5 and the fixing nut 9. By first picking up the fixing plate 1 and placing it at the opening below the power supply box, and then fixing the fixing plate 1 from below with screws, the fixing plate 1 after being fixed will pass the wire ring 5 at one end of the grounding wire 4 downward from the opening inside the power supply box. After passing through, the wire ring 5 is lowered so that it passes through the first barrel 2 and enters the base 6. Finally, the wire ring 5 and the spring washer 10 are sequentially sleeved on the threaded rod 8 and fastened with the fixing nut 9, which can achieve good external protection effect, avoid damage to the passing section of the wire, improve the service life of the grounding structure, and have good safety.

[0035] refer to Figure 1 A transparent observation plate 13 is embedded in the front of the base 6 . The transparent observation plate 13 can be used to facilitate personnel to observe the fixing conditions in the base 6 .

[0036] refer to Figure 3 The threaded rod 8, the fixing nut 9 and the spring washer 10 are all made of stainless steel, and the threaded rod 8, the fixing nut 9 and the spring washer 10 have the characteristics of high strength, low density and excellent corrosion resistance.

[0037] refer to Figure 1 , Figure 2 and Figure 3 The base 6 is made of galvanized flat iron, and the base 6 has high strength, light structure and good anti-corrosion and anti-rust effects.

[0038] A brief description of the usage process: first pick up the fixing plate 1 and place it on the opening below the power box, then fix the fixing plate 1 from the bottom with screws. After the fixing plate 1 is fixed, the wire loop 5 at one end of the grounding wire 4 is passed downward from the opening inside the power box. After passing through, the wire loop 5 is lowered so that it passes through the first barrel 2 and enters the base 6. Finally, the wire loop 5 and the spring washer 10 are successively mounted on the threaded rod 8 and fastened with the fixing nut 9.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A lightning protection grounding structure for a power supply box, comprising a fixing plate (1), characterized in that: The fixing plate (1) is fixedly sleeved with a first barrel (2) inside, the surface of the first barrel (2) is threadedly connected with a second barrel (3), a grounding wire (4) is slidably placed inside the first barrel (2), both ends of the grounding wire (4) are respectively installed with wire rings (5), a base (6) is installed at the bottom of the second barrel (3), a through groove (7) connected to the second barrel (3) is opened at the top of the base (6), a threaded rod (8) is welded inside the base (6), a fixing nut (9) is threadedly connected to the surface of the threaded rod (8), a spring washer (10) is sleeved on the surface of the threaded rod (8), and the spring washer (10) is located between the wire ring (5) and the fixing nut (9).

2. A lightning protection grounding structure for a power supply box according to claim 1, characterized in that: Two mounting holes (11) are provided on the top of the fixing plate (1).

3. The lightning protection grounding structure of a power supply box according to claim 1, characterized in that: An insulating anti-slip sleeve (12) is fixedly sleeved on the surface of the second barrel (3).

4. The lightning protection grounding structure of a power supply box according to claim 1, characterized in that: A transparent observation plate (13) is embedded on the front side of the base (6).

5. The lightning protection grounding structure of a power supply box according to claim 1, characterized in that: The threaded rod (8), the fixing nut (9) and the spring washer (10) are all made of stainless steel.

6. The lightning protection grounding structure of a power supply box according to claim 1, characterized in that: The base (6) is made of galvanized flat iron.

7. The lightning protection grounding structure of a power supply box according to claim 1, characterized in that: The inner diameter of the first barrel (2) is greater than the diameter of the wire loop (5).

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