JPH0139060Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for reinforcing cable supports attached to side walls in tunnels.

Electric wires are installed along the side walls of tunnels such as subways.
The support for supporting cables, etc. is installed in a recess a provided in the tunnel inner wall A, as shown in FIG. 1, which shows the support installed on the side wall inside the tunnel, and FIG. The arm fitting D is attached to the fixing fitting C of the support B fixed to the inner side surface with a bolt E, and electric wires, cables, etc. are supported by this. There was a risk that the support strength would decrease and the support would be incomplete, leading to an accident.

For this reason, conventionally the metal fittings were reinforced by welding etc.
Alternatively, new parts were replaced, but when urgent reinforcement is required, it is not easy to quickly weld reinforcement or replace parts on each of the many corroded metal fittings, so it is difficult to do so. There were no suitable means.

The present invention provides an apparatus capable of quickly reinforcing the support without performing welding reinforcement or replacing parts as described above, and the configuration thereof will be explained below with reference to illustrated embodiments.

(Structure of the invention) Figure 3 shows a partial cross section of one embodiment of the invention,
4 shows the second tubular beam shown in FIG. 3 viewed from above, FIG. 5 shows its end surface, FIG. 6 shows the wedge, FIG. 7 shows its horizontal cross section, and FIG. The figure shows its side.

In the figure, 1 is a first tubular beam made of iron pipe, 2 is a pressing flange provided at one end thereof, and 3 is an open end at the other end. Reference numeral 4 denotes a second tubular beam made of iron pipe, the outer diameter of which is formed to a diameter that allows it to be inserted into the open end 3 of the first tubular beam, with a pressing flange 5 provided at one end, and the other. The end is formed into an open end 6, and the open end 6 is provided with cut grooves 7, 8 which are cut into the tube wall from the tube edge, diametrically opposed to each other. Note that the groove width of the cut groove 7 in the upper tube wall is formed wide, and the groove width of the cut groove 8 in the lower tube wall is formed narrow. 9 is the inner deep edge of the upper wide cut groove 7.

Reference numeral 10 denotes a wedge made of iron, and the plate portion 11 has one side edge formed into a vertical edge 12 and the other side edge formed into a tapered edge 13.
The plate is formed into a wedge shape in which the width gradually decreases downward, and a hanging portion 1 is integrally formed below the vertical edge 12.
4 are arranged in series, and the plate portion 11 is provided with a vertical bolt insertion hole 15. Note that 16 is a thin portion of the plate portion 11.

A second tubular beam 1 as described above has a second
Insert the open end 6 of the second tubular beam 4 as shown in the third figure, insert the wedge body 10 into the wide cut groove 7 provided at the open end of the second tubular beam 4, and insert the wedge body 10 into the hanging part 14 of the wedge body. Pass it through the narrow cut groove 8 on the opposite side, and then insert the wedge body 1
Insert stainless steel bolt 1 into bolt insertion hole 15 of 0.
7 and insert the tip of the bolt into the narrow cut groove 8.
The nut 18 made of stainless steel is screwed into the second tubular beam by passing it through and protruding out of the second tubular beam. In addition, 19 is a nut for preventing loosening, and 20 is a bolt head.

The device of the present invention is constructed as described above, and in order to reinforce the cable support installed on the side wall in the tunnel, it is necessary to install it at intervals on the side wall A as shown in the first diagram. Apply the pressing flanges 2 and 5 of the first tubular beam 1 and the second tubular beam 4 to the bolts E and E of the supports B and B, which are held together, and tighten the nuts 18 of the wedge body 10. Screw on. At this time, since the bolts E and E are fitted into the flanges 2 and 5, the flanges do not come off from the supports B and B. Therefore, by screwing the nut 18, as shown in the third figure, the nut 1
8 is in contact with the lower surface of the second tubular beam 4, and the bolt head 2
0 is in contact with the upper surface of the wedge body 10, so the wedge body 1
0 is drawn downward from the cut groove 7 of the second tubular beam 4, and the tapered edge 13 of the wedge presses the inner deep edge 9 of the cut groove 7, and the vertical edge 12 presses against the open end of the first tubular beam 1. Press the edge of 3. Therefore, the first tubular beam 1 and the second tubular beam 4 are extruded in opposite directions. As a result, the first tubular beam 1
and each pressing flange portion 2, 5 of the second tubular beam 4.
presses the supports B shown in the first figure, so the first and second tubular beams are wedge-shaped between the supports B and the fixing metals C are attached to the inner wall of the tunnel. It is strongly pressed against the side surfaces of the recesses a, a, and is firmly fixed, thereby reinforcing them.

(Effects of the invention) As described above, the present invention involves fitting the open end of the second tubular beam 4 with the cut grooves 7 and 8 into the open end of the first tubular beam 1, and fitting the open end of the second tubular beam 4 into the cut groove. Insert the wedge body 10 and use the tapered edge 13 of the wedge body to close the inner deep edge 9 of the cut groove 7.
At the same time, since the vertical edge 12 and the edge of the hanging portion 14 press the edge of the open end 3 of the first tubular beam, both the tubular beams 1 and 4 are strongly pushed out in opposite directions. In addition, since the flanges 2 and 5 are provided on both tubular beams and the bolts of the supports B and B are fitted into these, the bolts of the supports B and B are
is firmly pressed and fixed against the side surface of the recess a on the inner wall of the tunnel, and therefore, even if the support is corroded, it can be sufficiently reinforced. Furthermore, the reinforcing work is an extremely quick and easy operation since it is only a matter of applying the pressing flanges of both the first and second tubular beams to the supports B and screwing the nuts 18. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is a drawing showing the state of use of the device of the present invention;
Fig. 2 is a longitudinal sectional view of the attachment part of the support, Fig. 3 is a partial sectional view of an embodiment of the present invention, Fig. 4 is a top view of the second tubular beam, and Fig. 5 is an end view thereof. , FIG. 6 is a front view of the wedge body, FIG. 7 is a horizontal sectional view thereof, and FIG. 8 is a side view thereof. 1: first tubular beam, 2, 5: flange portion, 3,
6: Open end, 4: Second tubular beam, 7, 8: Cut groove, 10: Wedge body, 11: Plate portion, 12: Vertical edge, 1
3: Tapered edge, 14: Hanging part, 15: Bolt insertion hole, 17: Bolt.

Claims (1)

[Scope of utility model registration request] A first tubular beam having a pressing flange portion at one end and an open end at the other end, a pressing flange portion at one end, and a cut groove in the tube wall of the open end of the other end, diametrically opposed to each other. A vertical bolt insertion hole is provided in the second tubular beam provided, and a plate portion formed in a wedge shape with one side edge being vertical and the other side edge being tapered so that the plate width gradually decreases downward. A wedge body having a hanging part connected below the edge, a bolt and a nut, the cut grooved open end of the second tubular beam is inserted into the open end of the first tubular beam, and the wedge inserting the body into the cut groove of one of the second tubular beams;
A reinforcing device for a cable support in a tunnel, wherein a tip of a bolt inserted into a bolt insertion hole of the wedge body is passed through the other cut groove of the second tubular beam, projects outside the tubular beam, and is screwed with a nut.