JPS58128989A - Mooring device for a floating construction - Google Patents

Abstract

PURPOSE:To provide adjustability for the draft of a floating construction by coupling a main pillar, which is coupled with this floating construction, with a pillar mounted on a sinking weight through adjusting member with possibility to adjust the length. CONSTITUTION:A partition plate 24a is furnished at the body 24 of a main pillar 24 coupled with a floating construction, and an auxiliary member 25 for the main pillar is installed at this partition plate 24a with its flange 26 in contact. The auxiliary member 25 has a cylindrical part 27 and a chuck cylinder 28, and a pillar 33 is fitted in this cylindrical part 27. An adjusting member 34 such as chain coupled with this pillar 33 at its top has its top coupled with the abovementioned partition plate 24a. Accordingly the draft of this flating construction to be coupled with the main pillar's body 24 can be adjusted by changing the length of the adjusting member in accordance with the place of installation. The one with identification number 31 is a universal joint while 32 is a sinking weight.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mooring device for anchoring and mooring a floating structure, such as a navigational aid or an observation tower, to a sinker such as an anchor on the seabed.

2. Description of the Related Art A mooring device shown in FIG. 1 has been used for a long time as a mooring device for floating structures such as navigation aids. This mooring device connects the buoy 1 with a chain 2 to a sinker 3 such as an anchor on the seabed, but this complicated mooring device is difficult to use because the buoy 1 is floating above the sea surface, so water depth changes. Although it has the advantage of being less affected by
A vertical line passing through a fixed point to) Departure distance from S! It had the disadvantage that not only was the wave angle large, but the angle of oscillation caused by the waves was also large.

Therefore, as shown in Fig. 2, in the case of late production, the lower end of the main column 5 having the floating body 4 is connected to the sinker 7 with a chain 6, etc., to reduce the separation distance. It became widely used. However, in a mooring device as shown in FIG.
Since it does not match 0, there is a drawback that the main column 5 swings irregularly and maintenance inspection is difficult. Furthermore, when the waves are rough, the center of gravity of the main column 5 tends to move around zero, causing problems such as the chain 6 becoming entangled.

Recently, as shown in the third section, a main column 9 having a floating body 8 is swingably connected to a sinker 11 with a universal joint 10 at its lower end. When the floating body 8 is tilted by The applicant of the present invention has developed a mooring device that swings.

However, when actually installing the floating structure, the actual water depth and the preset length of the submerged portion of the nine main pillars 9 may differ greatly due to measurement errors in water depth, changes in seabed topography, etc. In the case where the mooring device shown in FIG. ,
It has been discovered that the original performance of floating structures may be affected.

This invention has been uniquely developed based on the above-mentioned background, and consists of nine main columns connected to a floating structure and nine columnar bodies attached to a sinker by means of a universal joint, which are fitted into each other. To provide a mooring device for a floating structure that can give the floating structure the best amount of water even if changes in seabed topography or errors in water depth occur by fixing the mooring device at a predetermined length. With the goal.

The present invention will be explained below with reference to the drawings.

4 to 7 show an embodiment of a mooring device for a floating structure according to the present invention, in which A is a main column connected to a floating structure 22 such as a navigational aid having a lamp 21; 23 is a floating body that provides buoyancy to the main column AK and restores the inclination of the main column A caused by external forces such as waves and currents (see Figure 4) (WL is the sea level at high tide, LWL is the Shows the sea level at low tide.

The main column A has a main column main body 24 having a partition plate 24m at the lower end having a diameter larger than that of the main column A, and a flange 2b formed at the upper end, and this flange 2b is bolted to the partition plate 24m. and a cylindrical main column sub-body 25 connected to the lower end of the main column main body 24 by fixing with a fixing device such as a nut. This main column sub-body 25 is the 7 langes 2
6 at the upper end, and the circumference of this cylinder 27 *XV
It consists of a chuck tube 28 having a thick peripheral wall and attached to the lower end of the tube 27 by means such as welding. A slit 281 is formed in this chuck tube 28, reaching from near the upper end to the lower end of the chuck tube 28. On the peripheral wall of the chuck tube 28, which forms the long side of this slit 28a, there are plates 28b, 28b for tightening. Along with being installed protrudingly,
These tightenings are performed using the l seat 29 in the through hole formed in the plate 28b.
... is inserted, and these bolts 29... are bolted)
3G... are screwed in, and these bolts 29...
The slit 281 of the chuck tube 28 is sandwiched between the two opposing inner surfaces of the chuck tube 28 by rotating the nuts 30 and 30.

A columnar body 33, which is swingably attached to a sinker 32 on the seabed through a universal joint 31, is fitted into the main column sub-body 27, and by this fitting, the main column sub-body 27 The upper end of the columnar body 33 inserted into the main column is connected to the partition plate 24 of the main column by an adjustment member 34 such as a chain whose length can be adjusted. Then, with the adjusting member 34 tensioned, the bolt 29 and the bolt 30 are tightened, and the columnar body 33 is fixed to the cylinder body 27 by sandwiching the columnar body 33 between the inner surfaces of the chuck tube 28. has been done.

Next, an example of a method for installing the mooring device of the present invention configured as described above and its operation will be explained.

In order to install the mooring device of the present invention, before attaching the main column subbody 25 to the main column main body 24, adjust the length of the adjustment member 34 so that the upper part of the main column A obtains a predetermined swishing. The upper end of the member 34 is fixed to the partition plate 24m, and then the flange 26 of the main column sub-body 25 of the partition plate 24aK is fixed by means such as bolting. Then, the bolts 29 or the nuts 30 are rotated to tighten the columnar body 33 with the chuck tube 2B, thereby fixing the columnar body 33 to the main column sub-body 25.

As mentioned above, the installation of the nine mooring devices is possible even if the actual water depth and the length of the submerged part of main pillar A may differ due to measurement errors in water depth or changes in the topography of the seafloor.

By adjusting the clamping position of the columnar body 330 clamped and fixed by the chuck tube 2B and adjusting the length of the adjustment member 34, it is possible to give a predetermined amount of water to the floating structure 22.

Further, since the buoyant force caused by the floating body 23 is electrically phased by the adjustment member 34, the chuck tube 28 is not burdened by the buoyant force.

Further, due to the above-mentioned configuration, this embodiment has a small detachment distance J from the center line S of the mooring, the swing range of the main column A is within a predetermined range, and it has the ability to respond to changes in water depth. There is. Therefore, this embodiment has all the advantages of the prior art device shown in FIGS. 1-3, and the prior art described above! ! !
It is an excellent product that eliminates all the drawbacks of the original.

The wcs diagram shows another embodiment of the mooring device of the present invention, in which the nine main pillars A are connected to the floating structure 22 and are connected to the universal joint 3.
1 is attached to the sinker 32 and then inserted into the columnar body 33, and the lower end of the main column A is connected to the columnar body 33 by an adjustment member 34. This columnar body 33 consists of a columnar main body 35 having the same structure as the main column thin body 25 of the previous embodiment, and a columnar sub-body 36 having a partition plate 361 at the upper end. The chuck tube 28 of the columnar main body 35 adjusts the height of the main column A.
It is a trap that can be clamped and fixed.

With the above configuration, this embodiment achieves the same effect as the previous embodiment.

In addition, as long as the adjustment member 34F1 of the above-mentioned embodiment can withstand the buoyancy of the floating body 23 and is adjustable in length, it is possible to connect a large number of rods and chains to each other in addition to the chain. You can use a variety of tools such as a book with a tensioner attached to it, a tensioner from Iper or Looper, or wire. Furthermore, the range that can accommodate changes in water depth by fitting the main column A and the rod-shaped body 33 is approximately 1 of the water depth, taking into account general water depth measurement errors and changes in seafloor topography.
It is preferable to set it around 0 references.

As explained above, the mooring device for a floating structure of the present invention has a main column connected to a floating structure and a columnar body fitted to a sinker using a universal joint. Since they are connected by adjustment members, by adjusting the adjustment members according to the actual water depth, it is possible to give the floating structure the best amount of water. Furthermore, with a similar configuration, the separation distance of the mooring device L1 floating structure of the present invention from the center line of the mooring can be kept small, and the lifting range of the floating structure can be kept within a predetermined range. Therefore, the original functions of the floating structure can be fully demonstrated.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a conventional mooring device using a buoy, Fig. 2 is a schematic diagram showing a conventional mooring device using a main post and a chain, and Fig. 3 is a schematic diagram showing a conventional mooring device using a main post and a universal joint. A schematic diagram showing a mooring device; FIG. 4 is a front view of an embodiment of the mooring device of the present invention; FIG. 5 is a cross-sectional view of main parts of the embodiment; FIG. FIG. 7 is an enlarged perspective view showing the lower end of the main column of the same embodiment, and FIG. 8 is a schematic diagram showing another embodiment of the mooring device of the present invention. A...Main pillar, 22...Floating structure,
31...Universal joint, 32...Sinking weight, 3
3. White: columnar body, 34: adjustment member.

Claims (1)

[Claims] The main column connected to the floating structure and the columnar body attached to the sinking weight by a universal joint are fitted together, and the end of the main column or columnar body inserted inside by this fitting is inserted into the other body. A mooring device for a floating structure, characterized in that the columnar body is connected to the main column by an adjustment member such as a chain.