CN205051016U - General earth bar with adjustable - Google Patents

Abstract

The utility model discloses a general earth bar with adjustable, it has been solved prior art and has had that the usage is single, the operating difficulties scheduling problem, its characterized in that: it is by " U " type crotch (1) and insulator spindle constitutions such as (8), it presss from both sides (3) and shell fragment (4) for straight plane, both ends are curved movable wire to have set up the middle part in " U " type crotch (1) to set up earth connection terminal (2) at the one of which side arm, connected with insulator spindle (8) continuously through the activity. Have rational in infrastructure, convenient operation, strong adaptability, have advantage such as hidden danger safely, but ground connection and transmission line bare wire ground connection are arranged in transformer substation's bare wire, aluminium to the wide application, have good popularization and application and worth.

Description

Adjustable Universal Ground Rod

1. Technical field

The utility model belongs to auxiliary facilities for electric power construction, in particular to an adjustable universal grounding rod suitable for grounding bare wires of transformer substations, aluminum bars and bare wires of power transmission lines.

2. Background technology

At present, the connecting conductors in most substations mainly include rectangular aluminum bars and round wires, and the grounding rods used mainly have two structural forms: T-shaped and U-shaped. The wire clamps are fixedly connected to the insulating rods. The angle of the U-shaped grounding rod cannot be adjusted. Generally, the U-shaped grounding rod cannot be used on the rectangular aluminum bar, while the T-shaped grounding rod rotates with the wire clamp during the rotation and tightening process, and it is easy to fall off the aluminum bar. It is difficult to find the best suspension angle. Points, especially when the grounding wire is suspended in the switch cabinet, the long insulating rod takes up space, affects the construction, and is inconvenient to use and operate.

3. Contents of the invention

The purpose of the utility model is to provide the market with an adjustable universal grounding rod with reasonable structure, convenient use, strong adaptability, quickness and safety.

The technical scheme of the utility model is that it is composed of "U" shaped hooks and insulating rods and other components. The "U" shaped hooks are provided with movable wire clips and shrapnel with a straight plane in the middle and arc-shaped ends. And a ground wire terminal is arranged on its side arm, and is connected with the insulating rod through the movable joint. The movable joint is composed of an upper joint, a lower joint and fastening bolts. One end of the upper joint and the lower joint is cylindrical, and the other end is semi-cylindrical. The semi-cylindrical side plane is a regular concave-convex surface. The adjustment slots are fixedly connected by fastening bolts, the cylindrical end of the upper joint is fixedly connected with the connecting hole of the side arm end of the "U" shaped hook, and the cylindrical end of the lower joint is fixedly connected with the upper end of the insulating rod. The lower end of the insulating rod is provided with an internal screw connection hole for connecting the extended insulating rod, and is connected with the insulating rod through the external thread arranged at the upper end of the extended insulating rod.

The beneficial effect of the utility model is that: not only the structure is reasonable, the operation is simple, but also the angle between the wire clip and the insulating rod can be adjusted by the power supply installation and maintenance personnel arbitrarily to meet the needs of wires at different positions and fixed connections of different wires, thereby effectively ensuring the power supply. There are no hidden dangers for maintenance personnel to work safely.

Below in conjunction with accompanying drawing, the utility model is further described:

4. Description of drawings

Fig. 1 is the structural schematic diagram of the downward state of the crotch of the utility model;

Fig. 2 is a schematic structural diagram of the horizontal state of the crotch of the utility model.

In the figure: 1 is the "U" type hook, 2 is the ground wire terminal, 3 is the movable wire clip, 4 is the shrapnel, 5 is the upper joint, 6 is the lower joint, 7 is the fastening bolt, 8 is the insulating rod, 9 It is an internal screw connecting hole, 10 is an external thread, and 11 is an extended insulating rod.

5. Specific implementation

As shown in Figure 1, in accordance with the requirements of the electrical safety technical operation regulations, insulating materials are used to make insulating rods 8 and extended insulating rods 11, and metal materials are used to make "U"-shaped hooks 1, and the "U"-shaped hooks 1 are equipped with The middle part is a straight plane, the movable wire clip 3 and the shrapnel 4 are curved at both ends, and the grounding wire terminal 2 is set on one side arm, and the movable joint composed of the upper joint 5, the lower joint 6 and the fastening bolt 7 is passed through. Link to each other with insulating rod 8. One end of the upper joint 5 and the lower joint 6 is cylindrical, and the other end is semi-cylindrical. The cylindrical end of the "U" type crotch 1 side arm end connection hole is fixedly connected, and the cylindrical end of the lower joint 6 is fixedly connected with the insulating rod 8 upper end. The inner screw connection hole 9 connecting the extended insulating rod 11 can also be set at the lower end of the insulating rod 8 , and the outer thread 10 arranged on the upper end of the extending insulating rod 11 is connected with the insulating rod 8 . When implementing the utility model, the operator can adjust the angle between the "U" shaped hook 1 and the insulating rod 8 according to the position of himself and the wire. Just hang the grounding rod with adjusted angle on the bare wire, and under the action of the shrapnel 4, the arc-shaped elbow on the upper part of the movable wire clamp 3 and the arc on the top of the "U"-shaped hook 1 will connect the circular bare wire. The wires are tightly clamped. When the aluminum row wires in the substation need grounding wires for maintenance, the operator only needs to adjust the "U"-shaped hook 1 on the insulating rod 8 through the movable joint to make the aluminum row wires in the movable wire clamp. 3 In the middle plane position, the movable wire clamp 3 tightly clamps the aluminum row wire under the action of the shrapnel 4, which not only ensures the tight connection between the ground wire and the round bare wire, but also ensures that no matter whether the wire has tension or even greater The hook of the grounding wire device will not fall off from the wire even when the wind blows, thereby ensuring the safety of maintenance personnel. The utility model not only has the advantages of reasonable structure, convenient operation, wide application, safety and reliability, but also improves the working efficiency of the maintenance operation, and has wide popularization and application value.

Claims (3)

1. An adjustable universal ground rod, which includes a "U"-shaped hook (1) and an insulating rod (8), characterized in that: the "U"-shaped hook (1) is provided with a straight plane in the middle 1. Both ends are arc-shaped movable wire clamps (3) and shrapnels (4), and a grounding wire terminal (2) is arranged on one side arm thereof, which is connected to the insulating rod (8) through a movable joint. 2. The adjustable universal ground rod according to claim 1, characterized in that: the movable joint is composed of an upper joint (5), a lower joint (6) and a fastening bolt (7), and the upper joint (5) One end of the lower joint (6) is cylindrical, and the other end is semi-cylindrical. The side plane of the semi-cylindrical shape is a regular concave-convex surface, and an adjustment slot fixedly connected by a fastening bolt (7) is provided on the semi-cylindrical. The upper joint The cylindrical end of (5) is fixedly connected with " U " type crotch (1) side arm end connection hole, and the cylindrical end of lower joint (6) is fixedly connected with insulating rod (8) upper end. 3. The adjustable universal grounding rod according to claim 1 or 2, characterized in that: the lower end of the insulating rod (8) is provided with an inner threaded connection hole (9) connected to the extended insulating rod (11), through which the The external thread (10) extending the upper end of the insulating rod (11) is connected with the insulating rod (8).