JPH0581685B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an underwater base that can be used as a general marine leisure base such as an underwater aquarium or a diving base.

[Conventional technology]

Large-scale underwater bases are still in the experimental stage and nothing that can be put to practical use has yet emerged, but it is an important issue when considering the future of ocean development.

Most of the conventional underwater bases are constructed as permanent structures under the sea, and for example, many of them are of the type where the foundation is set on the seabed and the building is raised from the seabed.

However, such permanent underwater bases have difficult conditions for construction, and there is a risk of destroying nature during construction.

Furthermore, even after construction, the presence of this base tends to cause undesirable conditions by disturbing waves and tidal currents.

On the other hand, Japanese Utility Model Application Publication No. 57-193723 describes a spud-type underwater observation tower that can be moved as needed and installed on any seabed without destroying the seabed environment. has been done.

This system connects an upper chamber with an entrance and an exit and an underwater observation room with a central tube through a water surface section equipped with a hoistway. It is equipped with a spud that is suspended from a winding machine and can be moved up and down.

After constructing a float type main body with a dock and towing it to the desired installation location with the spud stored in the center tube, the spud will release its own weight when the suspension rope is released from the locking handle of the winding machine. It falls to the ocean floor and gets stuck.

In this way, the main body of the observatory is moved up and down by waves through the spuds inserted into the seabed, but it remains at the installation location without being moved by tides or wind.

On the other hand, when moving or evacuating the observatory body due to a change in the installation location or the approach of a typhoon, first use a winding machine to wind up the slack in the suspension rope during low tide, and then use a winding machine to wind up the slack in the suspension rope during high tide. The buoyant force pulls out the spuds that have dug into the bottom,
It is stored in the central cylinder and moved.

[Problem to be solved by the invention]

However, the method disclosed in Japanese Utility Model Application Publication No. 57-193723 has the following problems.

The main body of the observation body is an upper chamber with an entrance and an exit, and an underwater observation room with a central tube, connected by a water surface section with a hoistway. The whole thing cannot be submerged in water.

In addition, the spuds fall to the seabed due to their own weight, and have weak support against the seabed, so they can only serve the role of mooring the observatory itself. As a result, as mentioned above, the main body of the observatory is moved up and down by the waves via the spuds inserted into the seabed.

Additionally, to pull out the spuds when moving,
It takes time from low tide to high tide, and it is not possible to move quickly.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
Since the base itself, which has living quarters inside the external pressure vessel, is navigable, it can be easily installed at any location.In addition, when installing, it is necessary to use the external pressure vessel as a reaction force to secure at least four legs. The underwater base can be fixed upright and the external pressure vessel can be stably installed underwater using the legs, and when moving, the legs can be quickly pulled out and moved using the external pressure vessel as a reaction force. It is about providing.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a living area in an external pressure vessel as a pontoon, an inner cylindrical shaft is formed in the external pressure vessel so as to pass through it vertically, and a steel pipe is further penetrated through the interior of the external pressure vessel. At least four shafts or legs are provided, including those located at at least four corners, and the shaft is equipped with an elevating device in which a chuck device to the outer periphery of the leg is supported by a hydraulic jack so as to be movable up and down. The gist is that the legs and the external pressure container can be moved up and down through this elevating device.

[Effect]

According to the present invention, if the legs are raised by the elevating device, the external pressure vessel can navigate by itself or be towed, and can move freely. Therefore, it is moved to the installation location, and at least four or more legs are lowered at the same time to absorb the reaction force of press-fitting into the external pressure vessel while inserting its tip into the seabed ground. The installation of the base is then completed by lowering the external pressure vessel into the sea with respect to the legs thus erected and fixed.

At this time, the external pressure vessel in the sea is
Since it is supported by four or more legs, including those located at the corners, it can maintain a stable state continuously without being affected by wave forces near the sea surface.

Furthermore, when moving, if the legs are pulled up by a lifting device using the reaction force of these external pressure vessels, the tips of the legs come off the seabed and can be easily pulled up.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is a perspective view showing one embodiment of the underwater base of the present invention, and Fig. 2 is a perspective view of the same frame. ) consists of 2.

The external pressure vessel 1 has a truss-shaped frame 7 as a skeleton and serves as a living area 3 as shown in FIG. A float ship support part 6 is provided in the. Note that this external pressure vessel 1 itself functions as a pontoon.

The external pressure vessel 1 is formed so as to vertically pass through an inner cylindrical shaft 8, and legs 2 made of steel pipes are disposed so as to further pass through the shaft 8. A lifting device 9 for the legs 2 is housed within the shaft 8, and this lifting device 9 has a chuck device 10 for supporting the outer periphery of the legs 2 so as to be movable up and down by a hydraulic jack 11. Further, a machine room 12 for controlling the elevating device 9 and the like was provided in the upper part of the shaft 8, and a guide roller 13 that came into contact with the outer circumferential surface of the leg 2 was installed in the lower part.

Four or more such combinations of the inner cylindrical shaft 8 and the legs 2 are provided, including at least those located at the four corners of the external pressure vessel 1.

An appropriate one of the legs 2 is selected and the inside thereof is configured as an external pressure elevator shaft 14, and an elevator 15 for communication between the sea area and the living area 3 is installed here.

In the figure, reference numeral 16 denotes a doorway for boarding and alighting the elevator 15, and the outer upper part of the shaft 8 where this door is located communicates with other shafts 8 through a pier 17 or the like.

Next, to explain how to use it, to move it, pull up multiple legs 2 at once as shown in Figure 4.
A carrier barge 18 is disposed below the external pressure vessel 1, and the vessel is sailed while being loaded on the carrier barge 18.

When the destination is reached, at least four legs 2 are lowered to lower the transport barge 1 as shown in Figure 5.
After adjusting the ballast of 8 and the length of legs 2, the barge 18 is disconnected from the carrier barge 18, and the barge 18 is pulled out.

Describing the lifting and lowering movement of the legs 2, the chuck device 10 can be tightened by a hydraulic mechanism or the like, and by firmly locking it onto the outer periphery of the legs 2 and then retracting the hydraulic jack 11, the stroke can be adjusted. Only the chuck device 10 and the legs 2 move up and down. and,
When the chuck device 10 is released and the jack 11 is extended, only this chuck device 10 moves, and the legs 2
Be able to grasp other parts of.

By repeating these movements, the legs 2 are moved upwards or downwards, similar to the movement of a butterfly insect.

When the leg 2 is lowered in the state shown in FIG. 5, its tip reaches the seabed ground 19, and when pushed down further, the tip is inserted into the ground 19 and stands there. The reaction force of this press-fitting can be taken by the external pressure vessel 1.

Once the legs 2 are fully erected, ballast water is poured into the counter chamber 5 to reduce the buoyancy of the external pressure vessel 1, and the lifting device 9 lifts the external pressure vessel 1 into seawater using the same movement as the lifting and lowering of the legs 2. (See Figure 6).

At this time, the external pressure vessel 1 is supported on the seabed ground 19 by four or more legs 2 including those located at the four corners of the external pressure vessel 1, so it is not affected by wave force near the sea surface. Able to maintain a stable state continuously.

The installation is now complete, but as shown in Figure 7, even when the external pressure vessel is in a submerged state, the upper part of the shaft 8 still extends out to sea. Then you can go to residential area 3.

After that, to move again, although not shown,
Raise the external pressure vessel 1 against the leg 2 and take it out to sea,
Pull it up further and position it slightly above the sea level,
The barge 18 is drawn under it, and the external pressure vessel 1 is lowered a little again and mounted on the barge 18.

If the legs 2 are pulled up using the reaction force of the barge 18 and the external pressure vessel 1, the tips of the legs 2 will come out of the seabed and can be easily pulled up.

In addition, as another embodiment, the external pressure vessel 1 itself may have a self-propulsion function.

〔Effect of the invention〕

As described above, the underwater base of the present invention does not exist as a permanent structure and can be moved freely, so when constructing or installing the base, it is only necessary to lower the legs. In this case, the tip of the leg is inserted into the seabed ground while absorbing the reaction force of the press-fit into the external pressure vessel, so it can be firmly and stably fixed to the seabed and is not affected by wave forces near the sea surface. The entire body can be submerged in water via these legs, allowing it to be used as an underwater aquarium, a new type of aquarium that allows you to observe the ecology of sea creatures in nature in a state that is closest to their natural state. In this case, by moving, you can observe different types of organisms in cold and warm currents.

Furthermore, it can be used as a general marine leisure base such as a diving base, and by moving it, it will be possible to attract a large number of customers.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the underwater base of the present invention, Fig. 2 is a perspective view of the same frame as above, Fig. 3 is a longitudinal sectional front view of main parts, and Figs. 4 to 6 are explanations showing movement. 7 are perspective views of the installed state. 1...External pressure vessel, 2...Legs, 3...Living area, 4
... Observation window, 5 ... Counter room, 6 ... Float ship support, 7 ... Frame, 8 ... Shaft,
9...Elevating device, 10...Chuck device, 11...
... Hydraulic jack, 12 ... Machine room, 13 ... Guide roller, 14 ... External pressure elevator shaft, 1
5... Elevator, 16... Doorway, 17... Pier, 18... Transport barge, 19... Seabed ground.

Claims (1)

[Claims] 1. A living area is provided in an external pressure vessel as a pontoon, and an inner cylindrical shaft is formed in this external pressure vessel so as to pass through it vertically. Steel pipe legs are provided to further penetrate the inside of the shaft, and these At least four shafts and legs are provided, including those located at at least four corners, and a lifting device in which a chuck device to the outer periphery of the legs is supported movably up and down by a hydraulic jack is housed in the shaft, and the legs and external pressure vessel are connected to each other. An underwater base that can be moved up and down through this lifting device.