JPS6036999Y2 - Self-supporting cable support for tunnels - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support device for supporting and laying a self-supporting cable along a side wall surface in a tunnel.

When supporting self-supporting cables along the inner side wall of the road, the support line portion must be firmly fixed and supported so that the cable will not fall off even if it is subjected to vibrations from trains, vehicles, etc. running on the road. In particular, when installing a leaky coaxial cable for train communication in which the support wire and cable body are shaped like a canopy, it is necessary to ensure that not only the support wire portion but also the coaxial cable body is stable so that it does not shake. However, if the cable body is strongly clamped and fixed as with conventional supports, the cable body will not be damaged or deformed due to vibrations caused by passing trains, and it will be difficult to fix the cable body when quick repairs are required. There was a drawback that the cable could not be quickly attached and detached.

In view of the above-mentioned points, the present invention provides a support that securely fixes the support wire portion of a self-supporting cable, stably supports the cable body, and allows quick attachment and detachment work. The configuration of the present invention will be explained below with reference to the drawings.

FIG. 1 shows a side view of the support of the present invention attached to the side wall of the shelter, and FIG. 2 shows a front view.

In the figure, 1 is a pedestal, and 10 is an opening/closing plate pivotally connected to the pedestal.

The pedestal 1 has a rectangular shape when viewed from the front, has a pivot 3 projecting from the upper part of the front 2, and has an upper bolt insertion hole 4 below the pivot 3 that penetrates from the front to the back.

Further, a small semicircular groove 5 is provided in the lower front surface of the insertion hole 4 in the horizontal direction, and a semicircular recess 6 is provided in the lower front surface of the small semicircular groove 5 in the transverse direction. An arcuate receiving surface part 7 connected to the curved surface is provided to protrude forward from the upper front surface 2.

Further, a lower bolt insertion hole 8 is provided in the lower part of the pedestal, passing through from the front to the back.

The opening/closing plate 10 has a rear surface 12 of the upper half 11 facing the front surface 2 of the pedestal, and a pivoting portion 13 at the upper end of the upper half 11.
At the same time, the upper half is provided with a vertically elongated hole 14 penetrating from the front surface to the rear surface.

Further, a small semicircular groove 15 is provided in the lower part of the rear surface 12 in the lateral direction, and a large arcuate concave surface part 16 is formed on the rear surface of the lower half of the opening/closing plate below the small semicircular groove 15.

A pivot support 3 and an opening/closing plate 10 protruding from the upper front surface of the pedestal 1
A pivot portion 13 provided at the upper end is pivotally connected by a shaft 20 to make the opening/closing plate 10 rotatable with respect to the pedestal 1, and a small semicircular groove 5 provided on the front surface of the pedestal 1 and a small semicircle on the rear surface of the opening/closing plate 10 The grooves 15 are made to face each other to form the cable support support line clamping part A, and the mostly circular recess 6 of the pedestal 1, the arc receiving surface part 7 and the opening/closing plate 10
A cable support part B is formed by the semi-circular concave part 16 of
A gap 18 is formed between the lower edge 17 of the opening/closing plate and the tip of the arc receiving surface 7 of the pedestal.

Then, the head of the upper bolt 30 inserted into the upper bolt insertion hole 4 of the pedestal 1 protrudes from the vertical hole 14 of the opening/closing plate 10, and the nut 31 is screwed together to overlay and fix the opening/closing plate 10 on the front surface of the pedestal 1. The lower bolt 40 is inserted into the lower bolt insertion hole 8 of the base 1.

The upper bolt 30 and the lower bolt 40 are implanted in the hidden side wall C as shown in the second figure, and the pedestal 1 and the opening/closing plate 10 are attached and fixed to the hidden side wall surface by the bolts and nuts 31 and 41.

In order to support a self-supporting cable, for example, a canopy-shaped leaky coaxial cable for train communication, which is laid along the side wall surface of the road using the supporting device of the present invention configured as described above, the nut of the upper bolt 30 must be tightened. 31 and open the opening/closing plate 10 upward in the direction of the arrow in FIG. By screwing the nut 31 onto the upper bolt 30 and fixing the opening/closing plate 10 with the nut, the cable support line portion is firmly clamped by the clamping portion A, and the cable portion is secured to the supporting portion B. It is a stable payment.

As described above, according to the present invention, the pedestal 1 is provided with bolt insertion holes 4 and 8 on the upper and lower sides, and the bolts 30 are embedded in the side wall surface of the pedestal 1.
．． Since the pedestal 1 is fitted and attached to the pedestal 40, it can be securely fixed to the side wall surface.
3, it is rotatably attached to the pedestal 1, so when transporting and installing a large number of units to the work site, the pedestal 1 and the opening/closing plate 2 are connected, so there is no need to separate or lose them or assemble them, and the cable can be attached. When supporting, the opening/closing plate 10 has a vertical hole 1
4 is provided, not only can the opening/closing plate 10 be easily opened even if the upper bolt 30 protrudes for a long time,
The cable can be supported by simply opening the opening/closing plate 10, placing the cable on the pedestal 1, closing the opening/closing plate 10 again, and screwing the nut 31 onto the upper bolt 30, making the cable supporting work extremely quick and easy. be able to.

In addition, the cable support line part is clamped by the small semicircular groove 5.15 of the pedestal 1 and the opening/closing plate 10, so it can be securely attached and fixed without falling off.
Since the cable is supported by the almost circular recess 6, the arc receiving surface 7, and the large arc recess 16 of the opening/closing plate 10, it can be stably supplied even when subjected to vibrations when a train passes. Since a gap 18 is formed between the lower edge 17 and the tip of the arcuate receiving surface 7 of the pedestal 1, it is possible to support the leaky coaxial cable without blocking the leakage opening.

The pedestal 1 and the opening/closing plate 10 can be easily molded from hard synthetic resin or the like and are easy to handle.

[Brief explanation of the drawing]

FIG. 1 is a front view of the self-supporting type cable support for caravans of the present invention, and FIG. 2 is a side view of the installed state. 1: Pedestal, 3: Axial support, 5, 15: Small semicircular groove, 6: Most circular concave portion, 7: Arc receiving surface, 10: Opening/closing plate, 13: Pivot portion, 14: Vertical hole, 16 Two large circular concave surfaces Department.

Claims (1)

[Scope of utility model registration request] The pedestal is equipped with a pedestal and an opening/closing plate, and the pedestal has a shaft support at the upper front surface, an upper bolt insertion hole below the shaft support, a small semicircular groove in the horizontal direction of the lower front surface of the insertion hole, and a lower side of the semicircular groove. a horizontal mostly circular recess; an arcuate receiving surface connected to a lower concave curved surface of the recess;
The opening/closing plate has a pivot portion at the upper end, a vertically elongated hole in the upper half, a small semicircular groove in the rear side of the upper half in the horizontal direction, and a large circular arc in the rear side in the lower half. A concave surface portion is provided, the pivot portion of the pedestal and the pivot portion of the opening/closing plate are pivotally connected by the shaft, and each small semicircular groove of the pedestal and the opening/closing plate forms a cable support wire clamping portion, and A cable support part is formed by the mostly circular concave part of the pedestal, the circular arc receiving surface part, and the large circular arc concave part of the opening/closing plate, and a gap is formed between the lower end of the opening/closing plate and the circular receiving surface part of the pedestal. shaped cable support.