JPH0424731Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention of the present application is used in the relining work of power distribution lines.

(Conventional technology) Distribution lines need to be replaced periodically, but due to changes in social conditions in recent years, especially in urban areas, power outages are required even for a moment due to the use of computers. Therefore, a bypass is installed below the old line, which is currently energized, and the bypass line is energized during the work to remove the old line and replace it with the new line. The method of construction is to move sequentially to In this case, if construction is carried out in one span, the distance will be 30m.
Although a slight sagging of the bypass line does not obstruct traffic, and there is no problem of electric shock for passersby below, it is important to install the bypass line between as many utility pole spans as possible at once to improve efficiency. Ideally, the construction section should be 4 to 5 spans, so it is ideal to
A predetermined number of movable metal wheels are slidably suspended from the wire, and the bypass wire is held inside the wire and extended, and as the wire is extended, the movable metal wheels maintain a predetermined interval. A construction method was devised to prevent the bypass line from sagging and to make it easier to accommodate the bypass line when construction is completed.

(Problem to be solved by the invention) However, if the movable gold wheel B, which slides sequentially over the utility poles within the construction span while maintaining the predetermined intervals, cannot pass over the utility poles, it is not possible to lengthen the construction span. Therefore, the messenger wire W is stretched between the first and last telephone poles, the wire is supported by the middle pole, and the wire wire W is stretched as shown in Fig. 6 so that the moving gold wheel can slide through it. Structural support hardware was used. However, the distribution poles are not all lined up in a straight line, and if this middle pole becomes the apex of the curve, the messenger wire W
It was often observed that the moving metal wheel that had been sliding on top of the metal wheel would come off the supporting hardware.

Therefore, in the present invention, the mesh wire W
The present invention proposes a supporting metal fitting HG that can support the moving metal car B with an intermediate pillar and allow the moving metal car B to pass through without derailing.

(Means for Solving the Problems) In the present invention, the wire support fitting of the present support fitting HG is received in the fitting groove of the rotary plate of the movable metal wheel B holding the bypass line A shown in FIGS. 4 and 5, Furthermore, when the moving metal wheel is pulled, the rotary plate rotates and escapes from the supporting metal fitting of the present invention and passes through the intermediate support point, and the messenger wire W is supported within the U-shaped bottom of the U-shaped U-shaped bottom. The moving metal wheel B sliding on the wire is constructed so that it can never derail.

(Embodiment) In an embodiment of the present invention, a patch plate 12 is fixed to a tightening member 11 consisting of a chain for fixing it to a predetermined position on a utility pole, and an arm 1 is protruded from the corresponding plate 12 and fixed to a predetermined position. The mounting portion 2 is constructed by drilling several fixing holes 13. Also, the fixing hole 1 has a shape that can be fitted externally to the arm 1.
A position fixing frame 3 having a spring-loaded fixing pin 31 fitted into the position fixing frame 3 on the side is provided, and a main body 4 located at the lower part of the position fixing frame 3 is rotatable in both horizontal and vertical directions. Rotating part 5 for
are installed in succession. The main body 4 has a connecting member with the rotating part 5 on the upper surface, a hinge part 41 on one side, an opening/closing operation part 42 on the other side, and a guide made of a rod with a smaller diameter on either side. A metal fitting 7 is installed protrudingly. The guide fitting 7 extends one direction downward from the main body 4 and is expanded laterally at a predetermined position, and is used to control lateral vibration when the moving metal wheel passes the intermediate column. When the wire span is curved, the guide fitting 7 is positioned inside the curve so that the frame of the moving metal wheel contacts and slides to limit the posture and improve the passage of the intermediate column support point. Therefore, the part that expands in the horizontal direction is gently rounded, and the length is approximately twice the diameter of the utility pole. Further, the U-shaped bottoms of the two U-shaped metal fittings are bridged by a semi-cylindrical rope support plate 61, and one side of the wire support metal fitting 6, whose upper part is connected separately, is rotated by the hinge part 41 of the main body 4. It is hinged freely, and the other side is configured to correspond to the opening/closing operation part 42 so as to be freely engageable and detachable.

Tightening member 11 of the support fitting of the present invention having the above configuration
is attached to a telephone pole, and the fixing pin 31 of the position fixing frame 3 fitted from the tip of the arm 1 is fitted into one of the fixing holes 13 of the arm 1 protruding at right angles from the telephone pole surface to fix the position. The wire support fitting 6 of the present invention is used to connect the messenger wire W fixed to the utility pole at the starting end of the line.
The cable is placed on the inner rope support plate 61, and the same is applied to the intermediate pole of the entire length of the wire span, and then stretched to the final utility pole.

The fitting grooves provided in the rotary plate of the passing wire wheel shown in FIG. 4, which is connected at predetermined intervals by connecting ropes R and slides on the messenger wire W while holding the bypass wire, are used to support the wire. The U-shaped fitting at the front position of the metal fitting 6 is received and further pulled, and it rolls out onto the rope support plate 61, and the U-shaped fitting at the rear position also passes through in the same manner, and the same operation is performed on each intermediate column thereafter. This process is repeated to complete the extension of the bypass line A held in the moving metal car. In addition, first stretch the messenger wire to the pillars at both ends of the span, then operate the opening/closing operation part 42 of the main body 4 at each intermediate pillar to open the wire support fitting 6, and then stretch the messenger wire onto the rope support plate 61. The method of accepting the poles is the same as the construction method hereinafter, and when there are many intermediate poles, it is a convenient method for determining the mounting position on the utility pole of the present invention.

(Effect of the invention) By using the intermediate support fitting of the present invention when extending the bypass wire as described above, the guide line of the mesenger wire, etc., which would occur if there is a bend in the extension span in the conventional construction method, can be improved. It is possible to prevent derailment of the bypass line holding car. Furthermore, the wire span can be extended compared to the conventional method. In addition, the workers who were conventionally assigned to prepare for derailment at the intermediate pillar are no longer required, and the above-mentioned improvements in work efficiency and economical effects are significant.

[Brief explanation of the drawing]

Figure 1 is a front view of the design, Figure 2 is a bottom view of the design, Figure 3 is a right side view of the design, Figure 4 is a front view of the design in use, and Figure 5 is a right side view of the design in use. , Fig. 6 is a usage state diagram of the conventional product. Symbols in the diagram: 1...Arm, 61...Rope support plate, 2...Mounting portion, 62...Groove bottom, 3...Position fixing frame, 7...Guide fitting, 4...Main body, A...
Bypass line, 41...Hinge part, B...Moving gold wheel,
42... Opening/closing operation unit, HG... Support wheel, 5...
Rotating part, R...Connection rope, 6...Line support fitting,
W...Metssenja wire.

Claims (1)

[Scope of utility model registration request] A main body 4, which has a hinge part 41 on one side and an opening/closing operation part 42 on the other side, can be rotated in both horizontal and vertical directions on a mounting part 2 having a protruding arm 1 and a position fixing frame 3 that is positioned on the arm 1. The rope support plate 61 is connected to the groove bottom 62 of the U-shaped metal fitting.
One side of the wire support fitting 6 is rotatably hinged to the hinge part 41, and the other side is freely engaged and detached in correspondence with the opening/closing operation part 42. A guide wire intermediate support fitting having a protruding guide fitting 7 with which a metal wheel passing on a line supported on the rope support plate 61 comes into contact and its attitude is controlled.