JP2631612B2 - Wave absorber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave absorber installed in a harbor or an ocean for reducing waves.

[0002]

2. Description of the Related Art Conventionally, as a device for wave elimination, a wave elimination block is arranged, and a wave elimination structure such as a wave elimination plate or a wave elimination floating body is fixedly provided by a pile or the like, Alternatively, in the case of a floating body, it is moored and fixed with a chain or the like.

[0003]

All of these conventional wave absorbers are fixedly installed at the surface of the water where the waves occur, and hinder the navigation of the ship. Further, since the structure is fixed, the wave-breaking action cannot be changed according to the size of the wave.

[0004] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, so that when the waves are quiet, the whole is immersed in the water so that the ship can navigate freely thereon. The barricade corresponding to the size of the waves appears on the water surface by giving the appropriate gradient quickly and smoothly, and this barricade is supported with high supporting force so that it can exhibit excellent wave breaking effect with excellent safety Another object of the present invention is to provide a wave canceling device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly installs an elevating gantry, which is composed of a fixed leg and a telescopic leg facing each other with a space therebetween, under the sea. The upper ends of the fixed leg and the telescopic leg are hinged to the back surface of a wave breaking plate having a slide rail on the back surface.
By positioning the connecting portion at the upper end of the telescopic leg on the slide rail so as to be slidable, the whole wave plate is inclined when the wave canceller is raised on the elevating gantry so that one end thereof appears on the sea. Secondly, an elevating gantry composed of a frame with telescopic legs having different strokes facing each other at intervals is installed in the sea, and the upper end of the telescopic leg and the back surface of the wave breaking plate are hinged. The gist of the invention is that the wave-breaking plate is provided on the elevating pedestal such that the wave-breaking plate is entirely inclined in the ascending state, and one end of the wave-breaking plate appears on the sea.

[0006]

According to the first aspect of the present invention, the wave-breaking plate on which the lifting platform is installed in the sea is not raised when the wave is calm, and the wave-breaking plate is not raised. Since the whole is underwater, ships can navigate freely over it.

In addition, when there is a wave, the wave-breaking plate is raised by the elevating platform so that one end of the wave-breaking plate appears on the sea in a state where the wave is inclined, so that it becomes a barricade on the surface of the water and can exhibit a wave-breaking effect. . By appropriately adjusting the length of appearance on the sea and the angle of inclination of the whole, a wave-dissipating effect according to the magnitude of the wave can be expected.

[0008] Then, when raising the wave absorber,
Since the connecting portion at the upper end of the telescopic leg is positioned on the slide rail so as to be slidable, the movement of raising the wave canceller can be performed more quickly and smoothly. Further, since the upper end of the fixed leg is a hinge joint, the load on the joint is relatively small, only the weight of the wave canceller. In addition, since the upper end of the telescopic leg is positioned on the slide rail and is slidable, the supporting force is high without tilting the telescopic leg, and the movement when tilting the wavebreaker plate is improved. Can be smooth.

According to the second aspect of the present invention, in addition to the operation achieved in the first aspect, since all the legs of the elevating gantry are made of telescopic legs, the angle adjustment and the degree of elevating of the wave breaking plate are performed. Is easy to adjust, and fine adjustment is also possible.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 are side views showing one embodiment of the wave absorber according to the present invention. FIG. 1 shows a state when a wave is present, and FIG. 2 shows a state when the wave is quiet.

[0011] Rubble mound 2 and concrete foundation 3
A foundation 1 made of was provided on the seabed, and an elevating gantry 4 was installed on the foundation 1. The elevating gantry 4 is formed by framing a fixed leg 5 and a telescopic leg 6 with an interval therebetween.

A wave-absorbing plate 7 using a concrete plate or the like is installed on the elevating pedestal 4. The upper ends of the fixed leg 5 and the telescopic leg 6 are connected to the lower surface of the wave-absorbing plate 7 by a hinge 8 with a hinge. . At this time, the fixed leg 5 is connected near one end of the wave-absorbing plate 7, and the telescopic leg 6 is about two-thirds of the width of the wave-breaking plate 7 so that the other end of the wave-extinguishing plate 7 is greatly extended outward. It was joined at. A large number of the lifting pedestals 4 and the wave-breaking plates 7 are arranged in a horizontal row so as to form a bank.

In the hinge joint portion of the hinge 8, the one on the telescopic leg 6 side is provided with a slide rail 15 on the back side of the wave breaking plate 7 in order to make the movement smoother.
The member on the telescopic leg 6 side is slid together with the hinge 8 on the slide rail 15.

Various structures can be considered as the structure of the telescopic leg 6, but as an example, as shown in FIG. 3, an outer tube 6a and an inner tube 6b sliding on the outer tube 6a are provided.
Is pushed up by a jack 9 such as a hydraulic pressure. In addition,
In order to obtain a large stroke, a plurality of jacks 9 may be arranged.

As another example, the telescopic leg 6 (the inner tube 6)
b) using a rack-type shaft with gears formed on the outer periphery,
As shown in FIG. 4, this shaft is connected to a jack 10 and a chuck mechanism 11.
The mechanism may be a ratchet mechanism for moving the drive gear 12, or a mechanism for meshing and moving the drive gear 12 as shown in FIG.

As still another example, as shown in FIG.
The telescopic leg 6 composed of the outer tube 6a and the inner tube 6b that slides on the outer tube 6a slides the inner tube 6b with a suspending member 13 such as a chain from a hoisting device provided on land.

As shown in FIG. 2, when the waves are calm, the elevating pedestal 4 is not extended with the telescopic legs 6, and the telescopic legs 6 and the fixed legs 5 have the same length. 7 keeps a horizontal state.
In this state, the wave breaker 7 is entirely under the sea, and the sea surface (HWL: at high tide, LWL: at low tide) is located above the wave breaker 7.

In this way, all of the wave canceling plates 7 are submerged in the sea, so that the ship can freely sail on them.

On the other hand, when a wave occurs, the telescopic leg 6 is extended as shown in FIG. As a result, the wave canceler 7 stands upright and one end protrudes above the sea surface. As a result, the wave-absorbing plate 7 exists as an obstacle at the position where the wave is generated,
It acts as a wave absorber.

The erecting angle of the wave-absorbing plate 7 is changed depending on the degree of extension of the telescopic leg 6, and the length of the wave-absorbing plate 7 protruding above the sea surface is also changed. Corresponding.

FIG. 7 shows still another embodiment, in which the elevating pedestal 4 has telescopic legs 6 having different strokes arranged in parallel at intervals. The water injection chamber 14 has a hollow structure formed inside.

Although the wave canceling plate 7 has a buoyancy in a hollow structure, the buoyancy is adjusted by pouring into the water injection chamber 14 and draining the water.

In this embodiment, since the wave breaking plate 7 can always be supported by the telescopic legs 6, the structure is such that the wave breaking plate 7 is submerged in the sea while maintaining the inclined state, or floats so that one end of the wave appears on the sea. However, as in the other embodiments described above, the telescopic leg 6 and the wave-dissipating plate 7 may be connected by a hinge and tilted when necessary.

In all of the above-described embodiments, a wave height measuring instrument in front is installed, and
, It is possible to perform an automatic operation, and furthermore, it is possible to exhibit a more aggressive wave-dissipating function by moving the wave-dissipating plate 7 by capturing the periodic characteristics of the waves.

[0025]

As described above, the wave canceling device of the present invention has the following features.
When the normal wave is quiet, the entire wave-breaking plate is submerged in the water, so that the ship can freely navigate over it, maintaining a spacious landscape over the sea, and the flow of seawater Because it does not block the change of the environment, it is possible to minimize the change in the environment.

When a wave is generated, the angle of the wave-breaking plate can be quickly and smoothly adjusted so that a wave-breaking action corresponding to the size of the wave can be exerted.

[Brief description of the drawings]

FIG. 1 is a side view at the time of a wave showing one embodiment of the wave absorber according to the present invention.

FIG. 2 is a side view of a wave canceling device according to an embodiment of the present invention in a state where waves are quiet.

FIG. 3 is a vertical sectional front view showing an example of a telescopic leg of the elevating gantry.

FIG. 4 is a longitudinal sectional front view showing another example of the telescopic leg of the elevating gantry.

FIG. 5 is a vertical sectional front view showing still another example of the telescopic leg of the elevating gantry.

FIG. 6 is a side view showing a second embodiment of the wave absorber according to the present invention.

FIG. 7 is a side view showing a third embodiment of the wave absorber according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Foundation 2 ... Ripstone mound 3 ... Concrete base 4 ... Elevating stand 5 ... Fixed leg 6 ... Telescopic leg 6a ... Outer tube 6b ... Inner tube 7 ... Wavebreaker 8 ... Hinge 9 ... Jack 10 ... Jack 11 ... Chuck Mechanism 12… Drive gear 13… Hanging material 14… Injection chamber 15… Slide rail

Claims (2)

(57) [Claims] An elevating pedestal comprising a frame with a fixed leg and a telescopic leg facing each other with a space therebetween is installed in the sea, and upper ends of the fixed leg and the telescopic leg are slided on a back surface. The wave absorbing plate is hinged to the back surface of the wave absorbing plate having the above, and the connecting portion at the upper end of the telescopic leg is positioned on the slide rail so as to be slidable. A wave absorber in which the whole is inclined in one state, and one end of the wave absorber is provided to appear on the sea. 2. An elevating gantry comprising a frame, in which telescopic legs having different strokes are opposed to each other at intervals, is installed in the sea,
The upper end of the telescopic leg and the back surface of the wave-absorbing plate are hinged, and the wave-absorbing plate is entirely inclined on the elevating gantry in a rising state, and one end thereof is provided so as to appear on the sea. Wave absorber.