JPH0444675Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to earth retaining supports, which are sheet piles that are driven at a slight interval on both sides of trenches and other trenches for underground management construction dug on the ground. It has a field of application in which it is inserted between horizontal beams fixed and connected to retaining plates such as the above, and the approximately U-shaped symmetrical blocks on both sides are fitted into the horizontal beams, thereby preventing the collapsing of the retaining plates.

(Conventional technology) Supporters for earth retaining have been used in the past, but the
As shown in the figure, approximately U-shaped symmetrical blocks b and b are provided on both sides of the supporter body a, which can be expanded and contracted to be fixed at a constant length, and the upper and lower plates c and d are made slightly longer so that they can be adjusted up and down. Matching insertion holes e and f are provided, and a pin i inserted into the insertion hole is connected to the other end of a string h such as a rope or wire whose one end is tied to a connecting fitting g attached to the support body a. Although the structure is simple, there is a problem with the strength since the swinging of the cross beam must be supported by the pin i, and the insertion holes e and f are separated by more than the thickness of the cross beam j. Therefore, it is troublesome to insert the pin i, and there is a drawback that it does not match the actual situation of attaching and removing the supporter at the work site.

(Problems to be Solved by the Invention) In view of the foregoing, the present invention aims to provide a structure that is suitable for the actual use at work sites where there is a large amount of work involved in attaching and removing supports, and to improve its strength.

(Means for solving the problems) The purpose of this invention is to solve the problems related to the strength and workability of earth retaining supports,
The upper side of the cross beam is connected to both ends of the support body that connects the opposing retaining plates on both sides.
The structure is characterized in that a roughly U-shaped fitting block is provided to fit into the inner and lower surfaces, an outer surface panel that covers the outer surface of the cross beam by folding down is folded up and freely supported on the upper plate of the block, an extended protrusion is provided on the lower plate of the block, and a bent plate that overlaps with the extended protrusion is formed by folding down on the outer surface panel, and a through hole is provided in the overlapping part between the extended protrusion and the bent plate so that a binding pin can be freely inserted and removed.

A preferred embodiment of the invention is described in the following section.

(Example) Reference numeral 1 in the figure is a supporter body, which is made up of a main tube 2 that can be freely adjusted for expansion and contraction, and a subsidiary tube 3 inserted into it. The tube 2 is provided with a connecting pin 5 to be inserted into any of the engagement holes 4.
A telescoping operation box 6 is attached to the end of the main pipe 2, and the telescoping box 6 has an expanded diameter portion (not shown) that contacts the inner surface of the main pipe 2.
The operation box 6 is provided with an engagement lever 8 and an engagement release lever 9, and the protrusion and contraction of the operation box 6 of the operation box 7 is caused by engagement with the engagement lever 8. It is also controlled by the release lever 9. This structure is well known (see Japanese Utility Model Publications No. 58-42507 and 45318), and there is no problem even if other micro-movement devices are used.
A configuration in which only the daughter tube 3 contracts may be used, so a detailed explanation thereof will be omitted.

On both sides of the supporter body 1, the upper side of the cross beam 33,
A roughly U-shaped symmetrical block 10 that fits into the inner and lower surfaces is attached, and an outer side plate 13 is folded down onto the upper side plate 11 of the block 10 as shown in FIG. 2 to cover the outer side of the cross beam 33, as shown in FIG. It is attached to the pipe 16 fitted to the shaft 15 of the shaft support plate pair 14 on the upper side plate 11 so as to be folded up almost horizontally as shown in FIG. Bent plate 1 overlapping almost closely with 24
7 will be provided. The outer side plate 13 has a protrusion plate 19 on the outer surface.
Attach the stitching pin 20, which has a head 21 that is locked on the protruding plate 19 at the upper end, and pass it through the through hole 18 made in the bending plate 17 with a pin tip 22 provided at the lower end with an enlarged diameter. A spring 23 is provided, which is loosely wound around the binding pin 20 and hung between the upper end and the lower surface of the protruding plate 19, and whose lower end is hung on the upper surface of the pin tip 22. Drill the stop groove 25.

The supporter of the present invention has a groove 3 as shown in FIG.
The supporter body 1 is inserted between the cross beams 33 connected to the outer surface (or inner surface...chain line) of the part of the earth retaining board 32, such as a sheet pile, which is folded in contact with both side walls of the supporter 1 at a slight interval and projects above the ground. Pass it to block 1 on both sides.
0 into the cross beam 33 from the lateral inner surface, and until the fitting, the outer side plate 1 was folded up as shown in Fig. 3.
3 is rotated about the shaft 15 and the bending plate 17 is stacked on the extension protrusion 24 of the lower side plate 12. When the pin tip 22 of the stitching pin 20 comes into contact with the upper surface of the extension protrusion 24, the spring 23 The pin tip portion 22 moves against the elastic force, finds the locking groove 25, and at the same time, the pin tip portion 22 is fitted by the elasticity of the spring 23 and the second
Hold the cross beam 33 as shown in Figure 4. When removing the supporter body 1 from the cross beam 33, lift the binding pin 20 with the head 21 and pull it out from the locking groove 25.
It rotates a little around the outer side plate 13 and shaft 15.

To expand and contract the supporter body 1, move the block 10 to the cross beam 3.
3. Apply before and when fitting.

(Operations and Effects) The present invention provides approximately U-shaped blocks 10 that fit into the cross beams 33 at both ends of the supporter main body 1, which is provided to cross between the cross beams 33 connecting the retaining plates 32 opposed on both sides. 10 upper side plate 11
In addition, the outer surface plate 13 that covers the outer surface of the cross beam 33 is folded up and freely pivoted, and an extension protrusion 24 is provided on the lower surface plate 12 of the block, and the extension protrusion 24 is provided on the outer surface plate 13 by folding down. A bending plate 17 is formed which overlaps the portion 24, and a communication hole (through hole 18 and locking hole 25) into which the binding pin can be freely inserted is provided in the portion where the extension protrusion 24 and the bending plate 17 overlap. Even if the cross beams 33, 33 sway in the corresponding direction, the strong outer side plate 13 will
Since the outer surface of the cross beam 33 is held, there is no risk of distortion, and when the outer surface plate 13 is folded down and comes into contact with the bending plate 17 on the extension protrusion 24 of the lower side plate 12, the communication hole (through hole 18 and Since the grooves 25) closely overlap, there is no failure in inserting the binding pin, and the supports can be quickly connected to the cross beams 33, 33.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, Figure 1 is a perspective view, Figures 2 and 3 are partially cutaway side views of the main parts of the invention, and Figure 4 is a side view showing the state of use. It is.
FIG. 5 is a perspective view of a part of a conventional supporter. 1...Supporter body, 10...Block, 11
...Upper side plate, 12...Lower side plate, 13...Outer side plate, 15...Shaft, 17...Bending plate, 18...Through hole, 20...Sewing pin, 24...Extension protrusion,
25...Latching groove, 32...Earth retaining plate, 33...Horizontal beam.

Claims (1)

[Scope of utility model registration request] Approximately U-shaped inset blocks are provided at both ends of the supporter body, which crosses the crossbeam connecting the retaining plates opposed on both sides, to the upper, inner, and lower surfaces of the crossbeam, and the crossbeam is attached to the upper plate of the block. The outer surface plate that covers the outer surface of the block is folded up and freely pivoted, and the lower surface plate of the block is provided with an extended protrusion, and the outer surface plate is folded down to form a bent plate that overlaps the extended protrusion. A supporter for retaining earth, characterized in that a communicating hole is provided in a portion where the extension protrusion and the bending plate overlap, into which a binding pin can be extracted and freely inserted.