JPS5915447B2 - How to replace wires using a tricycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for relining electric wires using a three-wheeled hanging wheel carrying a self-propelled carrier for power transmission lines.

Conventionally, the work to replace the existing electric wires between towers A and B used lift equipment and vehicles to work at heights, but this was not only inefficient but also dangerous, and it was difficult to replace the existing electric wires between towers A and B. There was a risk of serious damage to crops, people's homes, property, etc.

For this reason, recently, self-propelled carriers have been used to re-stretch electric wires, but the electric wires are long and heavy, and the steel tower A is tall.

Since the construction work between section B is difficult, a large number of hanging wheels will be suspended from the existing line at intervals of about 10 meters, and these hanging wheels and self-propelled carriers will be used to replace the wires. became.

The three-wheeled hanging wheel used in the present invention will be described below with reference to the drawings.

1 and 2 are a pair of O-shaped main frames with their respective mid-abdomen bulging outward.

The concave grooves 5 of the rollers 4 fitted on the upper horizontal shafts 3 of the main frames 1 and 2 are fitted and supported on the existing lines 6.

Reference numeral 7 designates a spring fitted to a bolt 8 fitted to the upper part of the main frames 1 and 2.

Reference numeral 9 denotes a roller support shaft bent at a right angle in the center.The roller 10 is fully fitted into the left half of the roller support shaft 9, and a washer 11 is fitted between it and the main frame 1. It is screwed onto the outside of the main frame 1 with screws 12.

Reference numeral 13 denotes a roller fitted to the right half of the support shaft 9. After passing the dish-shaped latch 14 provided at the end of the support shaft 9 through the circular hole 15 at the bottom of the main frame 2, Fitted into and supported by a support hole 16 continuous to the circular hole 15, and at the same time, the dish-shaped latching fitting 1
4 is hooked and supported on the outside of the main frame 2.

Next, a hook 18 having an opening/closing claw 17 is fitted to the central bent portion of the support shaft 9, and a supporting metal fitting 19 is fitted and suspended.

20 is a ring fitted and supported by the hook 18; 21 is a connecting rope which is wound with a wire or the like around this ring and then wound with tape 22; and 23 is a pull rope inserted and supported between the rollers 10 and 13.

The three-wheeled hanging wheel of the present invention is constructed as described above, with the main frame 1
The spring T fitted to the bolt 8 fitted to the upper part of each of the main frames 1 and 2 is connected to the lower end of the main frames 1 and 2,
Since the lower end joints of the rollers 10 and 13 are completely adhered to each other, the lower end joints of the rollers 10 and 13 are housed in the hanging wheel. There was no fear of any interference, and the work progressed smoothly and smoothly, which was advantageous for the work.

The dish-shaped latch 14 at the end of the right half of the support shaft 9 easily fell off from the support hole 16 at the lower end of the main frame 2 due to impact or other forces, which was very dangerous. Unlike the conventional product, the elastic force of the spring 7 fitted to the bolt 8 presses the lower ends of the main frames 1 and 2 inward as described above, and at the same time, the lower ends of the main frames 1 and 2 are Since the dish-shaped latching metal fittings 14 that are attached are pressed inward and firmly held, there is no possibility of them falling back and falling off, making it extremely safe and eliminating the possibility of harm occurring.

The washer 11 fitted to the end of the left half of the support frame 9 is for further reinforcing the adhesion between the lower end joints of both rollers 10 and 13, and works together with the spring 7 to further improve the adhesion. This is what I did.

Although the structure and effects of the three-wheeled hanging wheel of the present invention are as described above, the special functions and effects when used for electric wire re-stretching work will be explained in detail.

The existing line 6 stretched from the A steel tower to the B steel tower is used as the main vehicle, and a self-propelled carrier placed on the existing line 6 is run with a pull rope 23 attached, and a three-wheeled suspension car is applied to the entire span. Install in large numbers at intervals.

At this time, in the tricycle suspension car, the groove 5 of the roller 4 is fitted and supported on the existing line 6, and the pulling rope 23 is placed on the joint between the rollers 10 and 13.

Between A and B towers? Tension is applied to the connecting rope 21 to be tied, and the newly installed wire is connected to the end of the pulling rope 23 with a winding or the like, and when the pulling rope 23 is pulled out, the newly installed wire is placed on the joint between the rollers 10 and 13.

When the extension of the new line is completed, the new line is temporarily tensioned and the tension of the existing line 6 is removed, the positions of both are reversed and the new line is fitted with the roller 6, and the existing line 6 is fitted with the roller. 10
and 13.

In this state, the new line will be replaced with a metal main car, the existing line 6 will be removed, and the re-covering work will be completed.

As described above, the present invention utilizes a self-conveying carrier for power transmission lines and a three-wheeled hanging wheel that is extremely safe due to the spring, and the position of existing lines and new lines is controlled inside the three-wheeled hanging wheel. It can now be replaced by reversing it, making it highly efficient and safe, eliminating the risk of harm caused by falling electric wires, etc.

[Brief explanation of drawings]

Figure 1 is a front view of the tricycle used in the present invention, Figure 2 is a front view of the tricycle used in the present invention;
The figure is a right side view of the same as above, and FIG. 3 is a side view of the right main frame with the plate-shaped latching fitting removed.

Claims (1)

[Claims] After 12 main frames, an upper roller, and 2 lower rollers form an outer wall, and a spring is fitted to the bolt fitted to the upper part of each of the 2 main frames, the upper roller is placed on the existing line. A large number of three-wheeled hangers with fitted handles are suspended from the existing lines at appropriate intervals, and a pull rope connected to the carrier is inserted inside each three-wheeled hanger and placed on the two rollers at the bottom. When the extension of the new line is completed using a pull rope between the A and B towers, the new line is temporarily tightened, the tension on the existing line is removed, the positions of the existing line and the new line are reversed, and the new line is installed. At the same time as fitting into the rollers on the upper part of the wire, the existing wires are placed on the two rollers at the bottom, and from then on, the new wires are used as the main wire, and the existing wires are removed, and the re-stretching of the electric wires is completed inside the tricycle. A method of re-stretching electric wires using a three-wheeled hanging wheel.