CN203967279U - Corner pole circuit interior angle side joint device for connecting earth - Google Patents

Abstract

The utility model relates to the technical field of maintenance equipment for overhead lines in the electric power industry, in particular to a grounding wire connection device on the inner corner side of a corner pole tower line. When the transmission line is powered off for maintenance, for a special form of tower, such as the line corner on the inner corner side of a large-angle tower, the wire is kept away from the tower. It is very difficult to use the existing ground wire connection tool to mount and protect the ground wire, and the work efficiency is low. The wiring clamp of the utility model is composed of two splints hingedly connected. The clamping handle of one side of the splint is fixed with a connecting plate, and the connecting plate is connected with the bolt on the top of the insulating rod; the clamping handle of the other side of the splint is connected to the protective ground wire; A driving rod for supporting the jaw is arranged in the jaw. The utility model has the advantages of simple and reasonable structure, reliable operation, fast hooking of the ground wire of the inner corner side of the large-angle pole tower, and the wire clamp and the insulating rod are connected by threads, which is convenient for disassembly and assembly; greatly reduces the construction difficulty and effectively improves work efficiency.

Description

Grounding wire connection device on the inner corner side of the corner tower line

technical field

The utility model relates to the technical field of maintenance equipment for overhead lines in the electric power industry, in particular to a grounding wire connection device on the inner corner side of a corner pole tower line.

Background technique

The grounding protection wire is an important protection tool in the maintenance of transmission lines. When the line is powered off for maintenance, a protective grounding wire is installed on the wires at both ends of the work area to prevent the damage to the staff caused by induction electricity and sudden calls to equipment. The connection operation of the existing ground protection line is: the staff stands on the pole tower, is located above the power transmission wire, and uses the insulating rope to suspend to complete the connection operation of the ground line.

With the rapid development of the power grid, many special forms of towers have appeared, such as the large-angle tower at the exit of the substation, the line on the inner corner side of the large-angle tower, and the outer side of the steering tower cross arm is far away from the tower. The staff use the existing connection method to hang The working ground wire is very difficult to assemble and disassemble, the work efficiency is low, and there are potential safety hazards.

Contents of the invention

The purpose of the utility model is to provide a grounding wire connection device on the inner corner side of a corner pole tower circuit, which has a simple and reasonable structure, is easy to operate, and effectively improves work efficiency.

The technical scheme of the utility model: including connection clips, connecting plates, insulating rods, and protective grounding wires; the end of the insulating rod is provided with a screw; the connection clip is composed of a static splint and a movable splint, and the two splints are arranged oppositely, and the middle part is hingedly connected by a rotating shaft , the rotating shaft is set with a return spring to keep the clamp closed; the front section of the two splints is a clamping mouth, and the rear section is a clamping handle; the clamping section of the static splint is provided with a longitudinal long guide through hole, and a horizontal guide is installed in the long guide through hole. root limit pin; the jaw section of the movable splint is hingedly connected to a driving rod through a pin shaft, the outer end of the driving rod protrudes from the long guide through hole of the static splint, and the driving rod is provided with a limiter in the long guide through hole. A card slot for a pin fit;

The clamping handles of the movable splint and the static splint are respectively connected to the protective grounding wire and the connecting plate; the end of the connecting plate is connected to the screw at the end of the insulating rod through threads.

Further, an arc-shaped clamping notch is provided on the inner side of the clamping opening of the splint.

Further, the insulating rod is a multi-section rod structure, and the rods are connected by threads or clamps.

The utility model has the advantages of simple and reasonable structure, reliable operation, fast hooking of the ground wire of the inner corner side of the large-angle pole tower, and the wire clamp and the insulating rod are connected by threads, which is convenient for disassembly and assembly; greatly reduces the construction difficulty and effectively improves work efficiency.

The technical scheme of the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Among the figure: 1. Static splint, 2. Moving splint, 3. Driving rod, 4. Long guide through hole, 5. Connecting plate, 6. Insulating rod, 7. Protective grounding wire.

Example

As can be seen from Fig. 1, the utility model includes a terminal clamp, a connecting plate 5, an insulating rod 6, and a protective grounding wire 7; The end of 6 is provided with a screw rod connected with the clamp; the clamp is composed of a static splint 1 and a movable splint 2, and the two splints are arranged opposite to each other, and the middle part is hingedly connected by a rotating shaft; the front section of the two splints forms a jaw, and the rear section is a clamping handle , the rotating shaft connecting the dynamic and static splints is equipped with a return spring, and the two ends of the return spring press the inner sides of the handles of the two splints respectively, so that the wiring clips remain closed; the inner sides of the clamps of the static splint 1 and the movable splint 2 are provided with arc-shaped clips The wire notch increases the contact area between the splint and the wire, and reduces the damage of the wire clip to the wire.

The jaw section of the static splint 1 is provided with a longitudinal long guide through hole 4, and a limit pin is horizontally installed in the long guide through hole 4, and the two ends of the limit pin are fixed on the wall of the long guide through hole; the movable splint 2 The jaw section of the pin is hingedly connected to a driving rod 3, and the outer end of the driving rod 3 protrudes from the long guide through hole 4 of the static splint, so that when the driving rod 3 swings around the pin shaft, the outer section of the driving rod is in the long guide. The through hole 4 moves; the driving rod 3 is provided with a card slot that cooperates with the limit pin in the long guide through hole 4, and the opening of the card slot faces the opening side of the front end of the wire clamp.

The clamping handles of the two splints are respectively connected to the protective ground wire 7 and the connecting plate 5; in this embodiment, the clamping handles of the movable splint 2 are connected to the fixed protective ground wire 7 by bolts, and the other end of the protective ground wire 7 is connected with a ground clip to protect the ground wire. The wire 7 is a multi-strand annealed copper wire with a sheath; the connection plate 5 is fixed on the clamping handle of the static splint 1 by riveting, and the end of the connection plate 5 is provided with a screw hole, and is connected with the screw at the end of the insulating rod 6 .

When the utility model is used to connect the ground wire of the inner corner side of the large corner tower, the staff stands on the cross arm of the tower, uses the connecting plate 5 to assemble the connecting clip on the screw rod at the top of the insulating rod 6, and presses the clamping handle of the connecting clip to make Open the clamp, move the lever 3 so that the slot on the lever 3 is on the limit pin in the long guide hole of the static splint 1, and support the dynamic and static splint to keep the clamp open; hold the insulating rod 6. Send the wiring clamp to the wire on the inner corner of the tower corner, so that the wire enters the clamp and touches the lever 3. The lever 3 swings along the long guide hole and falls to the inside of the clamp (that is, the hinge of the two splints). The splint loses its support, and the lead is closed and clamped under the action of the return spring, and then the insulating rod is rotated to separate the insulating rod 6 from the clamp.

After the maintenance work is over, use the bolts at the end of the insulating rod 6 to connect the connecting plate 5 of the terminal clamp, and pull the insulating rod 6 hard to drive the terminal clamp, so that the wires come out of the arc-shaped clamping slot of the terminal clamp, and remove the grounding clamp. Wire.

The utility model uses the insulating rod to accurately install the wiring clip on the line inside the corner of the tower. The wire clip and the insulating rod are connected by threads, and the staff can easily and quickly disassemble the grounding protection line, which solves the problem of large power transmission lines. It is difficult to hang and remove the protective grounding wire on the inner corner side wire of the corner tower, which reduces the construction difficulty and improves the work efficiency.

Finally, it should be noted that: the above examples are used to illustrate the technical solution of the utility model rather than to limit it. Those skilled in the art can modify the implementation or equivalently replace some technical features without departing from the technology of the utility model. The essence of the scheme should be covered within the scope of protection required by the utility model.

Claims (3)

1. a corner pole circuit interior angle side joint device for connecting earth, is characterized in that: comprise binding clip, connecting plate (5), insulating bar (6), protective earthing line (7); Insulating bar (6) end is provided with screw rod; Binding clip is made up of quiet clamping plate (1), moving clamping plate (2), and two clamping plates is oppositely arranged, middle part is articulated and connected by rotating shaft, is set with the back-moving spring that keeps wire clamp closure in rotating shaft; The leading portion of two clamping plate is jaws, and back segment is clamp holder; The jaws section of quiet clamping plate (1) is provided with longitudinal long guide through hole (4), in long guide through hole (4), a position-limitting pin is laterally housed; The jaws section of moving clamping plate (2) is by the bearing pin driving lever (3) that is articulated and connected, and quiet clamping plate are stretched out by growing in guide through hole (4) in driving lever (3) outer end, and driving lever (3) is provided with the draw-in groove coordinating with the position-limitting pin in long guide through hole;

The clamp holder of moving clamping plate (2) and quiet clamping plate (1) connects respectively protective earthing line (7) and connecting plate (5); Connecting plate (5) end is connected with the screw rod of insulating bar (6) end by screw thread.

2. a kind of corner pole circuit interior angle side joint device for connecting earth according to claim 1, is characterized in that: the jaws inner side of described quiet clamping plate (1) and moving clamping plate (2) is provided with the clamp notch of arc.

3. a kind of corner pole circuit interior angle side joint device for connecting earth according to claim 1, is characterized in that: described insulating bar (6) is Multi section bar body structure, passes through screw thread or clamp connection between each body of rod.