JPH02300092A - Suspension tool for wave extinguishing block - Google Patents

Abstract

PURPOSE:To ease and ensure installation and removal of a wave extinguishing block by providing a holder cap in which an opening and closing wire is connected to the lower part of a holder stand connected to a suspension wire, and opening and closing a hold nail provided on the can by relative movement of the holder stand and the cap. CONSTITUTION:An insertedly communicated hole 4 is provided on a holder stand 1 suspended with a suspension wire 24, and an opening and closing wire 26 is insertedly communicated to be connected to a holder cap 5 at the lower part of the holder stand 1. Three hold nails 10 are rotatably supported on an outer periphery of the holder cap 5 with a pin 9, and also the upper ends of the nails 10 and the holder stand 1 are rotatably connected with a lead arm 12. The wire 26 is loosened to be carried on a wave extinguishing block with the wire 24, lowered to engage the cap 5 with the upper end of a block rising part, and a cross part of legs of the block is gripped with the nails 10 by pulling up the opening and closing wire 26 under the above condition, and can be simply lifted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a hanging tool for a wave-dissipating block called a TetraBod.

(Prior art) A wave-dissipating block called Tetrabond is commonly used for seawalls on coasts, etc. When installing and removing this wave-dissipating block, conventionally, a sling was worked and the block was hoisted using a hoist. I'm trying to lower it.

[Problem to be solved by the invention]

There are two methods for the above-mentioned sling, one for the sling and the other for the sling, but in both cases there are various problems because the wire rope is engaged with the wave-dissipating block.

For example, as shown in FIG. 8, the foothold for hanging the wire rope 40 on one leg a of the wave-dissipating block A is defined as
The stability is poor, and there is a risk that the wave-dissipating block A may fall if the hooks at the tips of the hanging wires are engaged with the rings 41 provided at both ends of the wire row 140 and the wave-dissipating block A is suspended.

Further, when the wave-dissipating block A becomes larger, it is necessary to use a thick wire lobe 140, and since such a thick wire lobe 40 has high rigidity, there is a problem that slinging is very time-consuming.

Furthermore, when removing the installed wave-dissipating block, the wave-dissipating block is often buried in the seabed ground. In such cases, it is necessary to excavate the area around the block using packets, or remove the earth and sand using a jet of water. be.

SUMMARY OF THE INVENTION The technical object of the present invention is to provide a hanging tool for a wave-dissipating block that eliminates the above-mentioned inconveniences and allows installation and removal of the wave-dissipating block to be carried out extremely safely and efficiently. There is.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention includes a holder base having a connection part for the hanging wire rope at the upper part and an insertion hole for the opening/closing wire rope formed in the center part;
a holder cap disposed below the holder base and having a connection part for an opening/closing wire rope inserted through the insertion hole at the top; a hold claw having an upper end rotatably connected to the holder cap; The lead arm has one end connected to the hold pawl and the other end connected to the holder base to open and close the hold pawl when the holder base and holder camp are moved relative to each other.

[Function] The hanging tool having the above configuration suspends and supports the wave-dissipating block when used in combination with a hoist. In this case, a hoist having a main hoist hook and an auxiliary hoist hook is used. Then, the main winding hook and the holder camp are connected with a hanging wire rope, and the auxiliary winding hook and the holder base are connected with an opening/closing wire rope.

When suspending the wave-dissipating block, suspend the holder base using a hanging wire rope, transport the hanging tool to a position above the wave-dissipating block with the opening/closing wire rope loosened, and then lower the hanging tool. Then, fit the holder cap onto the upper end of the leg of the wave dissipating block in the upright position, then lower the holder base further and swing the hold claw inward, so that the tip of the hold claw is on the leg. When engaged with the lower surface of the intersection, the opening/closing wire rope is lifted to raise the holder cap.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

As shown in FIGS. 2 to 4, a hanging plate 2 is provided on the upper surface of the holder base 1, and a plurality of connecting holes 3 are formed in the left-right direction of the hanging plate 2. Furthermore, an insertion hole 4 for an opening/closing wire rope is provided in the center of the holder base 1.

The holder cap 5 disposed below the holder stand 1 can be fitted onto the upper end of the leg of the wave-dissipating block. A connecting hole 7 is provided in a hanging plate 6 provided on the upper surface of this holder cap 5. Furthermore, three claw support pieces 8 are provided on the outer periphery of the holder cap 5 at intervals of 120°. The lower end of this claw support piece 8 is bifurcated, and the inner side of the upper end of the hold claw 10 is rotatably supported by a pin 9 detachably attached to the two forks. Further, a connecting piece 11 is provided on the outside of the upper end of the hold claw 10.
is provided, and one end of a lead arm 12 is rotatably connected to the connecting piece 11 with a pin 13. The other end of the lead arm 12 is rotatably connected to a connecting piece 15 provided on the outer periphery of the holder base 1 via a pin 14.

Here, the tip of the holding claw 10 is bent inward, and the inside thereof is shaped to follow the outer periphery of the leg a and the outer periphery of the intersection of the legs a in the wave-dissipating block A, as shown in FIG. There is.

The hanging tool shown in the embodiment has the above-described structure, and FIG. 1 shows its usage. As shown, the work boat 20
The hoist 21 provided above has an auxiliary hoisting hook 22 and a main hoisting hook 23, and a hanging wire row 124 connected to the auxiliary hoisting hook 22 has a shackle 25 in the connecting hole 3 of the holder base 1.
are connected via. In addition, the opening/closing wire rope 26 connected to the main winding hook 23 is connected to the insertion hole 4 of the holder base 1.
and is connected to the connecting hole 7 of the holder cap 5.

In the connected state of the wire ropes as described above, by pulling up the auxiliary winding hook 22, the hanging wire rope 12
The holder base 1 is lifted up via the holder 4. At this time,
By lowering the main winding hook 23 and loosening the opening/closing wire rope 26, the holder cap 5 is lowered relative to the holder base 1, so that the hold claw 10 is held in an open state.

When removing wave-dissipating block A installed on the seabed,
With the holding claws 10 open, the hanging tool is transported to a position above the wave-dissipating block A, and the hanging tool is lowered to attach the holder cap 5 to the upper end of the leg a that is in the standing state on the wave-dissipating block. At the same time, the holder base 1 is further lowered.

At this time, since the holder base 1 descends relative to the holder cap 5 which is in a stopped state, the hold claws 10 rotate inward, and as shown in FIG. engage with.

In the secured state, the hanging wire rope 24 is slackened, and conversely, the main winding hook 23 is raised, and the hanging tool is pulled upward via the opening/closing wire row 126. At this time, since the hold claw 10 is engaged with the wave-dissipating block A, the wave-dissipating block A is pulled up together with the hanging tool, and the wave-dissipating block A can be removed from the seabed.

In the above-mentioned removal work of the wave-dissipating block A, if the lower part of the wave-dissipating block A is buried in the seabed, remove the holder stand 1 with the holder cap 5 fitted to the upper end of the leg a. Move up and down repeatedly. This vertical movement opens and closes the hold claw 10, and when it closes, the tip of the hold claw 10 pierces the ground on the seabed, so by repeatedly opening and closing the hold claw 10, the tip of the hold claw 10 is moved to the intersection of legs a. It can be engaged with the lower end.

Therefore, there is no need to remove the seabed ground by jetting water or the like, and the removal work of the wave-dissipating block A can be carried out efficiently.

The wave-dissipating blocks A are usually arranged regularly, and the gaps formed between adjacent wave-dissipating blocks A are small, so that the three holding claws 10 may not be able to engage with the lower surfaces of the intersections of the legs a.

In such a case, as shown in Figure 6, one or two
The book holding claw 10 is removed, one or two holding claws 10 are engaged with the lower surface of the intersection of 1lla by the same action as described above, and the main winding hook 23 is pulled up from there to lift the hanging tool. Make it. At this time, since the wave-dissipating block A is supported at the top and bottom by the holder cap 5 and the holding claws 10, the wave-dissipating block A can be stably lifted by raising the hanging tool.

Furthermore, as shown in FIG. 7, the wave-dissipating block A may have legs a that rise from the seabed and are inclined.

When removing such a wave-dissipating block A, the connecting position of the hanging wire row 124 with respect to the connecting hole 3 of the holder base 1 is changed. For example, as shown in FIG. 7, when the holder base 1 is suspended and raised by connecting the hanging wire rope 24 to the connection hole 3 at the left end of the hanging plate 2, the hanging tool will tilt to the right. By lowering the hanging tool toward the top of the leg a of the wave-dissipating block A, the holder cap 5 can be smoothly fitted to the outside of the upper end of the leg a. Therefore, even if the wave-dissipating block A is inclined, the holding pawl 10 can be smoothly and reliably engaged with the wave-dissipating block A.

Note that since there are many types of wave-dissipating blocks A with different sizes, the holding claws 10 of an appropriate size are attached or changed depending on the size of the wave-dissipating block A.

〔Effect of the invention〕

As described above, in this invention, the holder cap is fitted to the upper part of the leg of the wave-dissipating block, and the tip of the hold claw is engaged with the lower surface of the intersection of the legs to support the upper and lower parts of the wave-dissipating block. As a result, the wave-dissipating block can be suspended and transported extremely safely.

In addition, by fitting the holder cap to the top of the leg of the wave-dissipating block and then lowering the holder base relative to the holder cap, the hold claw rotates inward and the tip of the hold claw moves to the top of the leg. Since the wave-dissipating block is lifted by engaging the lower surface of the intersection and lifting the holder cap in the secured state, the wave-dissipating block can be installed and removed very efficiently.

Furthermore, when the holder base is repeatedly moved up and down with respect to the holder cap, the holding claw opens and closes, and when it closes, it pierces the ground, so the wave-dissipating block has a lower part buried in the seabed ground. can be removed efficiently.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the usage state of the hanging tool according to the present invention, Fig. 2 is a perspective view of the same hanging tool, Fig. 3 is a bottom view of the same as the above, and Fig. 4 is a partial cutaway of the same as the above. A front view, FIGS. 5 and 6 are cross-sectional views showing the operating state of the same as above, FIG. 7 is a front view showing an example of use when setting a hanging tool on an inclined wave-dissipating block, and FIG. 8 FIG. 2 is a perspective view showing a state in which a wire lobe is hung on a wave-dissipating block. 1...Holder base, 3...Connection hole, 4...Insertion hole, 5...Holder cap, 7...Connection hole , 10
...Hold claw, 12...Lead arm.

Claims (1)

[Claims] (1) Having a connection part for the hanging wire rope at the top,
A holder base with an insertion hole for an opening/closing wire rope formed in the center, a holder cap placed below the holder base and having a connection part for the opening/closing wire rope inserted through the insertion hole, and the holder cap. A hold claw whose upper end is rotatably connected to the holder cap, one end connected to the hold claw, and the other end connected to the holder base to hold the holder cap when the holder base and the holder cap are moved relative to each other. A wave-dissipating block hanging device consisting of a lead arm that opens and closes a claw.