Ground rod for power supply line

Abstract

The invention provides a ground rod for a power supply line. The ground rod comprises an operation rod, a hooking piece, a meshing plate and a grounded annealed copper wire, wherein the operation rod comprises an insulating rod body and a screw, and a connecting terminal is arranged at one end of the grounded annealed copper wire. The ground rod is structurally characterized by further comprising a protective spring, the hooking piece comprises a hooking plate and an operating rod connecting plate, the hooking plate and the operating rod connecting plate are integrally connected, the screw of the operating rod penetrates through the operating rod connecting plate from bottom to top and extends upwards, an arc-shaped meshing port concave downwards is formed in the upper end of the meshing plate, the lower end face of the meshing plate is fixedly connected with the upper end of the screw of the operating rod, the grounded annealed copper wire is in bolted connection with the hooking plate of the hooking piece through the connecting terminal of the grounded annealed copper wire, the protective spring is connected to the side, provided with the connecting terminal, of the grounded annealed copper wire in a sleeving mode, and one end of the protective spring is fixedly connected with the connecting terminal of the grounded annealed copper wire. By the adoption of the ground rod, the strand breaking rate of the grounded annealed copper wire can be effectively reduced, the effect that short-circuit current is grounded through the ground rod is guaranteed, and the service life of the ground rod is prolonged.

Description

technical field [0001] The invention relates to a power supply auxiliary device, in particular to a ground rod for a power supply line. Background technique [0002] A large number of ground rods are required on the power supply lines. Existing ground rods such as figure 1 As shown, it consists of a first operating lever 1a, a hooking portion 2a, an engaging portion 3a and an annealed grounding copper wire 4a. The upper end of the first operating rod 1a is a screw rod with external threads, and its lower end is an insulating rod; the hooking part 2a is composed of a horizontal plate 21a and an articulation plate 22a, and the articulation plate 22a of the articulation part 2a is substantially inverted L-shaped Board body parts, the L-shaped short plate of the interlocking plate 22a is provided with a downward arc-shaped notch, and the lower end of the L-shaped long side of the interlocking plate 22a is directly connected to the connecting terminal of the first ground anneal...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the existing grounding rods for power supply lines are: firstly, due to the structural limitations of the hooking part 2a and the engaging part 3a, in actual use, it does not bite enough with the power supply cable that needs to be grounded close, thus affecting the grounding effect; the second is that the first ground annealed copper wire 4a is directly connected with the lower end of the L-shaped long side of the articulated part 2a with bolts through its connection terminal, and in use, the first ground annealed copper wire 4a Due to factors such as wind force, the hard connection with the hooking part 2a is easy to repeatedly swing and twist to cause the strands of the multiple strands of annealed copper wires in the first grounding annealed copper wire 4a to be broken, and the strands of the first annealed grounding copper wire 4a are broken. Its conductive cross-section becomes smaller, which directly affects the effect of the grounding rod on grounding the short-circuit current, which brings unsafe factors and also affects the service life of the grounding rod

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