JPH0817642B2 - How to clean the seabed - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seabed cleaning method for cleaning a seabed by rotating a plurality of cord-shaped sliding bodies such as chains.

[0002]

2. Description of the Related Art Conventionally, in order to remove weeds and the like that hinder the growth of kelp, a chain fixed to a ship is hung on the seabed, and the ship is moved to slide the chain against the seabed for cleaning. . In addition, JP-A-5-17664
There was a method disclosed in Japanese Patent No. 4 publication.

[0003]

However, in the above-mentioned conventional method, the chain does not reach into the recess smaller than the diameter of the link, and the chain is repelled when there is a rock or a protrusion on the seabed. However, there was a problem that the seabed could not be cleaned cleanly. Further, since the device has to be fixed to the ship, a special ship is required, which is disadvantageous in that it is costly. The present invention has been made to solve the above problems, and provides a seabed cleaning method capable of cleaning details such as inside recesses by rotating a string-like sliding body (for example, a chain). To aim.

[0004]

To achieve the above object, the present invention provides a drive source through a bendable joint.
A plurality of string-shaped sliding bodies are fixed to the rotary plate connected to the rotary shaft
Then, by rotating the rotary plate by the drive source,
It is characterized in that the string-shaped sliding body is slid on the seabed to clean the seabed.

[0005]

Furthermore, a cleaning member is attached to the tip of the string-like sliding body.

[0007]

With the above-mentioned structure, the present invention is provided with a joint.
Rotate the rotating plate and rotate the string-shaped slides fixed to it.
Roll and clean. The rotating plate rotates the sliding body efficiently.
Clean thoroughly, and the sliding body has protrusions or rocks on the seabed.
When it hits an obstacle, the joint bends
Cleans without hitting any obstacles. Also, by attaching a cleaning member to the tip of the sliding body, it is possible to clean the details of the seabed. In addition , it is preferable to use the rotating plate having a uniform weight and good rotation balance, and to fix the sliding body to the rotating plate in a well-balanced manner.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, the string-shaped sliding body 1 uses a metal chain. In this embodiment, four sliding bodies 1 are fixed to the bottom surface of a disk-shaped rotating plate 2, and the shaft 3 is provided at the center of the rotating plate 2. One end is connected and the other end of the shaft 3 is connected to the rotating shaft of the drive source 4 (for example, a hydraulic motor). The shaft 3 and the rotating shaft of the drive source 4 are connected via a bearing case 5 so that the shaft 3 can bear the weight of the rotating plate 2 and the like.
Further, since the lifting metal fitting 6 is fixed to the bearing case 5 and is lifted by the crane 8 of the ship 7, the device can be easily removed.

When the rotary plate 2 is filled with water by the crane 8 and the drive source 4 rotates the rotary plate 2 to a position where the slide body 1 can slide on the seabed A, the slide body 1 fixed to the rotary plate 2 is removed. The seabed A is cleaned by rotating and rubbing the sliding body 1 on the seabed. Further, by moving the ship 7, the cleaning location can be moved at any time, and the seabed A can be cleaned over a wide range.

Further, cleaning is performed corresponding to different water depths, such as replacing the shafts 3 with different lengths according to the water depth of the sea B or connecting the shafts 3 by increasing or decreasing the number of the shafts 3.

According to the present invention, since the rotary plate 2, the shaft 3 and the rotary shaft of the drive source 4 are connected to each other through the bendable joint 9, the sliding body is attached to the obstacles such as the projection 11 and the rock 12 on the seabed. When 1 hits, the joint 9 bends, and the rotary plate 2 does not collide with an obstacle and cleans.

When the cleaning member 10 is attached to the tip of the sliding body 1, the frictional force for sliding on the seabed A is increased more than that of the sliding body 1 (metal chain), so that weeds such as Honda straw and the kelp such as calcareous microorganisms grow. Along with the ability to remove obstructing substances, the cleaning member 1 has details such as the depression 13 on the seabed A.
Since 0 can enter, cleaning ability is improved.

Although the ship 7 is used in the above embodiment , the remote ship may be used instead of the ship 7.

[0014]

Since the present invention is constructed as described in detail above, it has the following effects. Since the string-shaped sliding body slides on the seabed while rotating, it will slide on the same location on the seabed several times, and thus the seabed is reliably cleaned. In addition, since the seabed is strongly rubbed, the ability to remove a substance that inhibits the growth of kelp such as Honda straw is high. During cleaning work, the sliding body may have protrusions or rocks on the seabed.
When you hit an obstacle, the joint will bend and rotate
The board can be cleaned without colliding with obstacles.
In addition, there is no risk of shocking the drive source or ship, etc.
You can continue to work. Further, since the plurality of string-shaped sliding bodies are rotated by the rotating plate, the plurality of sliding bodies can slide on the same portion of the seabed during one rotation, and the cleaning ability is enhanced. Also,
By attaching a cleaning member to the tip of the sliding body, it is possible to clean a place that is difficult to clean, such as a dent on the sea floor or near a rock. Further, unlike the conventional case, a dedicated ship is not required, so that the cost can be suppressed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing one embodiment of the present invention.

FIG. 2 is a perspective view of an essential part showing an example of attachment of a cleaning member.

[Explanation of symbols]

 A Seabed 1 Sliding body 2 Rotating plate 4 Drive source 10 Cleaning member

Claims (2)

[Claims] 1. A drive source through a bendable joint.
A plurality of string-shaped sliding bodies are fixed to the rotary plate connected to the rotary shaft
Then, by rotating the rotary plate by the drive source,
A method of cleaning a seabed, which comprises cleaning the seabed by sliding a string-like sliding body on the seabed. 2. A cleaning member is attached to the tip of the string-like sliding body.
The method for cleaning a seabed according to claim 1, wherein