CN106450836B - Low-voltage grounding wire group - Google Patents

Abstract

The invention discloses a kind of low-voltage grounding wire groups, are related to earthing or grounding means technical field.The ground wire group includes five grounding rods, and each grounding rod is equipped with a ground lead, and the free end of five ground leads is fixedly connected with the one end being grounded afterwards with one and connect.The wiring group includes five grounding rods, disclosure satisfy that the low-voltage circuit construction grounding requirement of five line forms, saves the operating time, improve work efficiency, reduce and stop electric power feeding time, improve economic benefit.

Description

Low voltage ground wire set

technical field

The invention relates to the technical field of grounding devices, in particular to a grounding wire set suitable for use on five-wire low-voltage lines with street lamps.

Background technique

At present, street lamps are installed on the low-voltage lines in towns and rural areas, and the low-voltage lines are erected in the form of five wires (the original four wires add one more street lamp phase wire); and in order to ensure the safety of workers during the construction of rural power distribution, it is necessary to install Low-voltage grounding wire, and the low-voltage grounding wire equipped with the power supply is a four-wire type, which cannot meet the safety protection measures of the five-wire low-voltage line. Only one set of grounding wires can be added (two sets of grounding wires are hung on the five wires on the same base tower as the low-voltage line) In order to meet the safety measures, the operators wear insulating gloves and hang two sets of ground wires on the same tower, which increases the physical consumption when hanging the ground wires and causes fatigue to the operators. The time of safety measures is long, the operation steps are cumbersome and difficult, and the power outage maintenance time is prolonged, which brings inconvenience to high-quality service work.

Contents of the invention

The technical problem to be solved by the present invention is to provide a low-voltage grounding wire set, which includes five grounding rods, which can meet the grounding requirements of low-voltage line construction in the form of five wires, save operating time, improve work efficiency, and reduce The power transmission time is shortened, which improves the economic benefits.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a low-voltage grounding wire group, which is characterized in that it includes five grounding rods, each grounding rod is provided with a grounding lead, and the free ends of the five grounding leads are fixed Connect to one end of a ground wire after connection.

A further technical solution is: the grounding rod includes an inverted U-shaped metal hook and an insulating rod connected to one end of the metal hook, and a movable wire clip is provided on the inner side of the metal hook, and the movable wire clip includes two oppositely arranged The movable clamping piece, the whole of the clamping piece is C-shaped, and the middle part is vertically arranged, and the lower end of the clamping piece is rotatably fixed in the accommodating cavity inside the metal hook. The upper end of the clamping piece is a free end and is located in the accommodating cavity of the metal hook. There is a shrapnel on the left and right sides of the wire clamp. The vertical part of the hook is in direct contact with, and the metal hook is provided with a ground wire terminal for connecting the ground wire.

A further technical solution is: the elastic piece includes a vertical portion and an inclined portion set at an acute angle with the vertical portion, the vertical portion of the elastic piece is located in the accommodating cavity of the metal hook, and the vertical portion of the elastic piece A positioning ring is provided, and a positioning column is provided in the accommodation cavity of the metal hook. The positioning column passes through the positioning ring to position the vertical part of the shrapnel in the accommodating cavity, and the inclined part of the shrapnel is free. The end is in direct contact with the movable clamping piece.

A further technical solution is: a connecting sleeve is fixed at one end of the hook, threads are provided on the inner wall of the connecting sleeve, and the insulating rod is screwed to the connecting sleeve.

A further technical solution is: a handle is provided at the tail end of the insulating rod.

A further technical solution is: a groove is provided on the outside of the vertical part of the movable wire clamping piece, and the free end of the inclined part of the elastic piece is inserted into the groove.

The beneficial effect produced by adopting the above technical scheme is that: the grounding wire group includes five grounding rods, which can meet the grounding requirements of the low-voltage line construction in the form of five wires, without the need to connect multiple groups of grounding wires, which saves operating time and improves work efficiency. Efficiency, reducing power transmission time, improving economic benefits.

In addition, the shrapnel in the grounding rod is positioned by the positioning column, which is convenient for installation and can effectively prevent displacement during use, making the use of the grounding rod safer and more reliable. The outer side of the vertical part of the movable clamping piece is provided with a groove, the free end of the inclined part of the elastic piece is inserted into the groove, and the free end of the elastic piece is positioned through the groove, which can further prevent the elastic piece from Displacement during use causes the shrapnel to fail, further improving the safety and reliability of the use of the ground rod.

Description of drawings

Fig. 1 is a schematic structural view of the ground wire group described in the embodiment of the present invention;

Fig. 2 is a schematic structural view of the ground rod in the ground wire group according to the embodiment of the present invention;

Fig. 3 is a schematic diagram of an enlarged structure after opening the metal hook in the ground rod according to the embodiment of the present invention;

Among them: 1. Grounding rod 2, grounding lead wire 3, grounding wire 4, metal hook 5, insulating rod 6, movable clamping piece 7, shrapnel 71, vertical part 72 of shrapnel, inclined part 73 of shrapnel, positioning ring 8, Ground wire terminal 9, connection sleeve 10, gloves.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

As shown in Figure 1, the embodiment of the present invention discloses a low-voltage grounding wire group, including five grounding rods 1, each grounding rod 1 is provided with a grounding lead 2, and the free ends of the five grounding leads 2 are fixedly connected to the One end of a ground wire 3 is connected. It should be noted that the ground rod can be any one in the prior art, and the object of the present invention can be achieved.

The grounding wire group includes five grounding rods, which can meet the grounding requirements of the low-voltage line construction in the form of five wires. It does not need to connect multiple sets of grounding wires, which saves operating time, improves work efficiency, reduces the power-off time, and improves economic benefits.

Preferably, as shown in FIG. 1 and FIG. 2 , the ground rod 1 includes a metal hook 4 arranged in an inverted U shape and an insulating rod 5 connected to one end of the metal hook. The inner side of the metal hook 4 is provided with a movable wire clip, and the movable wire clip includes two oppositely arranged movable wire clips 6, the whole of the wire clips is C-shaped, and the middle part is vertically arranged. The lower end of the clamping piece is rotatably fixed in the accommodating cavity inside the metal hook 4, preferably connected with the metal hook 4 through a rotating shaft; the upper end of the clamping piece is a free end and is located at the In the accommodating cavity of the metal hook 4, the free end can move in the accommodating cavity. The left and right sides of the wire clamp are respectively provided with a shrapnel 7, and the movable wire clips 6 are mutually squeezed under the action of the shrapnel 7, so that the vertical part on the movable wire clip 6 directly contacts, and the metal hook 4 A ground wire terminal 8 is provided for connecting the ground wire 2 .

Further, as shown in FIGS. 2 and 3 , the elastic piece 7 includes a vertical portion and an inclined portion disposed at an acute angle with the vertical portion. The vertical portion 71 of the shrapnel is located in the accommodating chamber of the metal hook 4, and the vertical portion 71 of the shrapnel is provided with a positioning ring 73, and the accommodating cavity of the metal hook is provided with a positioning post. The vertical portion 71 of the elastic piece is positioned in the accommodating cavity through the positioning ring 73 , and the free end of the inclined portion 72 of the elastic piece is in direct contact with the movable wire clamping piece 6 .

Preferably, one end of the hook is fixed with a connecting sleeve 9, the inner wall of the connecting sleeve 9 is provided with threads, and the insulating rod is screwed with the connecting sleeve. The shrapnel in the grounding rod is positioned by the positioning column, which is convenient for installation and can effectively prevent displacement during use, making the use of the grounding rod safer and more reliable.

Preferably, a groove is provided on the outer side of the vertical part of the movable wire clamping piece 6, and the free end of the inclined portion of the elastic piece is inserted into the groove. The outer side of the vertical part of the movable clamping piece is provided with a groove, the free end of the inclined part of the elastic piece is inserted into the groove, and the free end of the elastic piece is positioned through the groove, which can further prevent the elastic piece from Displacement during use causes the shrapnel to fail, further improving the safety and reliability of the use of the ground rod.

Preferably, the tail end of the insulating rod 5 is provided with a handle glove 10, which is convenient for holding and carrying out the operation of hanging or unplugging the wire.

When hanging the wires, the five-wire low-voltage wires are first subjected to power outage processing, and then the staff holds the grounding wire set to climb up, and after climbing to a suitable height, hang the five grounding rods in the grounding wire set on the On the five low-voltage power supply lines, when hooking up, the low-voltage cable first contacts the movable clamping piece, and then under the action of external force, the low-voltage cable squeezes the movable clamping piece, and the movable clamping piece squeezes the movable clamping piece. The shrapnel deforms the shrapnel, and finally the low-voltage cable enters the space formed by the two movable clips and the metal hook. After letting go, the grounding rod sags under the action of gravity, making the metal hook contact with the low-voltage cable. The free ends of the grounding wires in the grounding wire group can be reliably connected to the ground before and after climbing up.

When unplugging the wire, the operator holds the insulating rod to make the low-voltage cable go out from between the two movable clips, which is easy to operate.

Claims (4)

1. A low-voltage grounding wire set, characterized in that: it includes five grounding rods (1), each grounding rod (1) is provided with a grounding lead (2), and the free ends of the five grounding leads (2) are fixedly connected Connect with one end of a ground wire (3) afterward; Wherein, the ground rod (1) includes an inverted U-shaped metal hook (4) and an insulating rod (5) connected to one end of the metal hook, and the inner side of the metal hook (4) is provided with a movable wire clamp, and the The movable wire clamp includes two oppositely arranged movable clamping pieces (6), the whole of said clamping piece is C-shaped, and the middle part is vertically arranged, and the lower end of said clamping piece is rotatably fixed on the said clamping piece. In the accommodating cavity inside the metal hook (4), the upper end of the clamping piece is a free end and is located in the accommodating cavity of the metal hook (4), and a shrapnel is provided on the left and right sides of the wire clamp (7), the movable clamping piece (6) squeezes each other under the action of the shrapnel (7), so that the vertical part on the movable clamping piece (6) directly contacts, and the metal hook (4) is provided with a grounding Wire terminal (8) for connecting the grounding lead (2); The elastic piece (7) includes a vertical portion and an inclined portion arranged at an acute angle with the vertical portion, the vertical portion (71) of the elastic piece is located in the accommodating cavity of the metal hook (4), and the vertical portion of the elastic piece The straight portion (71) is provided with a positioning ring (73), and a positioning post is provided in the accommodation cavity of the metal hook, and the positioning post passes through the positioning ring (73) to place the vertical portion (71) of the shrapnel Positioned in the accommodating cavity, the free end of the inclined portion (72) of the elastic piece is in direct contact with the movable wire clamping piece (6). 2. The low-voltage grounding wire set according to claim 1, characterized in that: one end of the hook is fixed with a connecting sleeve (9), the inner wall of the connecting sleeve (9) is provided with threads, and the insulating The rod is threadedly connected with the connecting sleeve. 3. The low-voltage grounding wire set according to claim 1, characterized in that: a handle cover (10) is provided at the tail end of the insulating rod (5). 4. The low-voltage grounding wire set according to claim 1, characterized in that: the outer side of the vertical part of the movable clamping piece (6) is provided with a groove, and the free end of the inclined part of the elastic piece is inserted into the groove. in the slot.