KR20230047764A - Collection device for waste net on the seabed - Google Patents

Abstract

The present invention relates to a collection device for a waste net on the seabed. More specifically, an objective of the present invention is to stably collect a waste net or the like which has sunk to the seabed. Specifically, the present invention separates a device from a corresponding waste net without forcibly recovering the corresponding waste net if the waste net is caught on a rock or a coral reef in the process of collecting the waste net to prevent a fault or damage to a ship or a lifting device or prevent the ship from being stuck or capsized. The present invention also suggests a configuration for maintaining or releasing tension such as a variable-length method employing a damper form and a rotation limiting method using a coil spring in various forms to be easily applied to a waste net collection device currently operating in a ship as well as a waste net collection device for a ship to be manufactured in the future. Therefore, reliability and competitiveness can be improved in the marine waste collection area, particularly the collection device area for waste nets which have sunk to the seabed, and similar or related areas.

Description

Subsea waste net collection device {Collection device for waste net on the seabed}

The present invention relates to an apparatus for collecting waste nets on the seabed, and more particularly, to a device capable of stably collecting waste nets sunk on the seabed.

In particular, in the process of collecting the waste nets, when the waste nets are caught on rocks and coral reefs, the present invention separates the device from the waste nets without forcibly recovering the waste nets, thereby preventing damage or failure to the ship or lifting device. It relates to a subsea waste net collection device capable of preventing a ship from being stranded or capsized in advance.

In general, marine pollutants polluting the sea include not only wastes such as plastics, metal cans, glass bottles, etc. introduced from the land, but also aquaculture tools and waste nets abandoned or lost from farms or ships in coastal waters.

Since most of these marine pollutants are made of materials that do not decompose in nature, they must be collected and disposed of in a designated place after use, but they may be lost due to natural disasters such as typhoons or management offices.

In particular, most of the waste nets are left sunk on the seabed. In this case, various aquatic organisms living on the seabed may be trapped in the abandoned waste nets and die.

In addition, when waste nets sunk on the seabed move along the flow of seawater, they may interfere with normal fishing activities or cause problems in farms.

Accordingly, these waste nets were mainly lifted (collected) using a collection tool such as a hook or a lifting device, and then moved to land and discarded.

One of such devices for collecting waste nets is Korean Patent Registration Publication No. 10-1586800 entitled 'Seabed Submerged Closed Rope Collection Device' (hereinafter referred to as 'prior art').

Looking at the prior art, the closed rope is collected using a plurality of collecting members arranged side by side on the main body moving along the seabed.

However, in the case of conventional waste net collection devices, including the prior art, when some of the waste nets are caught on rocks and coral reefs on the sea bottom, in the process of forcibly collecting the waste nets, the ship and the lifting device for collecting the waste nets Damage or failure may occur, and in severe cases, the vessel may run aground or capsize.

Republic of Korea Patent Registration No. 10-1586800 'Sea floor sedimentation closed rope collection device'

In order to solve the above problems, an object of the present invention is to provide a submarine waste net collection device capable of stably collecting waste nets sunk on the sea floor.

In particular, in the process of collecting the waste nets, when the waste nets are caught on rocks and coral reefs, the present invention separates the device from the waste nets without forcibly recovering the waste nets, thereby preventing damage or failure to the ship or lifting device. An object of the present invention is to provide a subsea waste net collection device that can prevent a ship from being stranded or capsized in advance.

In addition, the present invention presents a configuration for maintaining and releasing tension in various forms, so that it can be easily applied to waste net collection devices for ships currently in operation as well as waste net collection devices for ships to be manufactured in the future. The purpose is to provide a device.

In order to achieve the above object, a subsea waste net collection device according to the present invention includes a base part connected to a waste net lifting device installed on a ship; a joint part rotatably installed on the base part; And when the waste net is collected, a support tension is generated so that the joint part maintains a bent shape at a certain angle at the base part, and when the net tension applied to the joint part by the waste net is greater than the maximum tensile strength, the joint part is straight. It includes; a tension adjusting unit for releasing the support tension so as to be unfolded.

In addition, the tension control unit is composed of a variable length structure, and the length is variable within the restorable length by generating a support tension that resists the net tension below the maximum tensile strength, and when the net tension exceeds the maximum tensile strength The supporting tension may be released and the length may be longer than the restorable length.

In addition, the tension adjusting unit, one side is configured to be rotatable to the base portion, the other side may be configured to be rotatable to the joint portion.

In addition, the base part and the joint part are configured to adjust rotation angles by the bending control wire and the unfolding control wire, and the tension control unit may be configured in the middle of the bending control wire.

In addition, the tension control unit, a cylinder formed with a space portion therein; and a piston in which a piston rod formed on one side is exposed to the outside through one side of the cylinder and reciprocates inside the cylinder, wherein the cylinder has a restorable length based on an inner surface in the other direction. It is formed in a closed structure, at least one open hole is formed at a position exceeding the restorable length, and when the position of the piston is within the restorable length, the closed structure is maintained to generate support tension, and the restoring If the available length is exceeded, the closed structure may be released by the opening hole.

In addition, the tension control unit has one side connected to the base portion and the other side connected to the joint portion, and a coil whose angle is varied within a restorable angle by generating an elastic restoring force that resists the net tension below the maximum tensile strength. spring; and a stopper for limiting the return rotation by the elastic restoring force of the coil spring when the net tension exceeds the maximum tensile strength.

In addition, the stopper may be configured to be movable in a vertical direction of the joint part.

The tension control unit may further include a reverse rotation mechanism that is interlocked with the stopper and rotates the joint part in a direction opposite to the return rotation direction of the coil spring when the stopper is operated.

In addition, the reverse rotation sphere, a reverse rotation inclined surface for rotating the joint portion in the opposite direction to the return rotation direction of the coil spring; may be formed.

In addition, a buoyancy body for allowing the base portion to be located at an upper portion compared to the joint portion; may further include.

By means of the above solution, the present invention has the advantage of being able to stably collect waste nets that have sunk on the sea floor.

In particular, in the process of collecting the waste nets, when the waste nets are caught on rocks and coral reefs, the present invention separates the device from the waste nets without forcibly recovering the waste nets, thereby preventing damage or failure to the ship or lifting device. It has the advantage of being able to prevent the occurrence or ship aground or capsize in advance.

In addition, the present invention presents a configuration for maintaining and releasing tension in various forms, such as a variable length method using a damper type and a rotation limiting method using a coil spring, so that waste net collection devices for ships to be manufactured in the future as well as current ships It has the advantage that it can be easily applied to waste net collection devices operated in

Accordingly, the present invention has the advantage that it can be used for various types of waste net collection vessels and waste net collection devices.

In addition, when the present invention is used alone, such as in the form of a hook, it has the advantage of stably maintaining the posture of the waste net collection device by directing the joint part toward the lower direction of the base part using a buoyancy body.

In addition, the present invention has the advantage of being able to adjust the depth of the waste net collection device by adjusting the buoyancy of the buoyancy body.

Therefore, it is possible to improve reliability and competitiveness in the marine waste collection field, particularly in the field of waste net collection devices sunk on the seabed, as well as similar or related fields.

1 is a view illustrating an embodiment of a subsea waste net collection apparatus according to the present invention.
FIG. 2 is a view illustrating a state in which the tension of the subsea waste net collection device shown in FIG. 1 is released.
3 is a view for explaining an embodiment of the tension adjusting unit shown in FIGS. 1 and 2;
FIG. 4 is a view illustrating another embodiment of FIG. 1 to which FIG. 3 is applied.
5 and 6 are diagrams illustrating another embodiment of FIG. 1 .
FIG. 7 is a view showing another embodiment of FIG. 6 .

Various examples of the apparatus for collecting subsea waste nets according to the present invention can be applied, and hereinafter, the most preferred embodiment will be described with reference to the accompanying drawings.

FIG. 1 is a view for explaining an embodiment of a subsea waste net collection apparatus according to the present invention, and FIG. 2 is a view for explaining a state in which the tension of the subsea waste net collection apparatus shown in FIG. 1 is released.

Referring to FIG. 1 , the subsea waste net collection device A includes a base part 100, a joint part 200, and a tension adjusting part 300.

The base part 100 is a standard configuration of the subsea waste net collection device A, and is directly connected to the waste net lifting device installed on the ship with a rope or configured to be coupled to a separate mechanism like the main body of the prior art. can

The joint part 200 is rotatably installed on the base part 100 and can be rotated based on the base part 100 using a separate hydraulic device. Here, since the hydraulic device for rotating the joint 200 or the coupling relationship of its configuration can be variously changed and applied according to the needs of those skilled in the art, it is, of course, not limited to a specific one.

The tension control unit 300 maintains the corresponding tension when tension smaller than the maximum tensile strength occurs, and releases the corresponding tension when tension greater than the maximum tensile strength occurs.

Specifically, as shown in FIG. 1 , the tension control unit 300 generates a support tension so that the joint portion 200 maintains a bent shape at a predetermined angle in the base portion 100 when the waste net is collected.

And, as shown in FIG. 2, the tension control unit 300 supports the joint 200 to straighten when the net tension (external force) applied to the joint 200 by the waste net is greater than the maximum tensile strength release the tension

In other words, the tension control unit 300 is composed of a variable length structure, and below the maximum tensile strength, as shown in FIG. 1, the length can be varied within the restorable length by generating a support tension that resists the net tension, If the net tension exceeds the maximum tensile strength, as shown in FIG. 2, the support tension is released and it may not be restored to its original shape as it becomes longer than the restorable length.

To this end, as shown in FIGS. 1 and 2 , the tension adjusting unit 300 may have one side configured to be rotatable to the base part 100 and the other side to be rotatable to the joint part 200. there is.

Specific embodiments of the tension adjusting unit 300 will be described in more detail below.

As a result, as shown in the lower part of FIG. 2 , when the joint part 200 loses tension and unfolds from the base part 100, the waste net held by the joint part 200 can be easily separated from the joint part 200. .

Thereafter, the operator can restore the tension adjusting unit 300 from which the tension is released to an original state after recovering the subsea waste net collection device A on board.

In FIG. 1 , reference numeral '400' is a buoyancy body, and may be used to position the base part 100 above the joint part 200.

For example, when the subsea waste net collection device A shown in FIG. 1 is used alone by being directly connected to a waste net lifting device installed on a ship with a rope, the subsea waste net collection device A descends to the sea floor. During the process, the posture of the subsea waste net collection device A may be disturbed or overturned, and in this case, a problem may occur in collecting the waste nets.

Accordingly, when the base part 100 is positioned above the joint part 200 by the buoyancy generated by the buoyancy body 400, the posture of the subsea waste net collection device A is maintained stably, so that the waste nets can be collected. can be done smoothly.

In addition, the buoyancy body 400 is connected to a separate buoyancy control device (not shown) installed in the vessel, and the air supply is controlled by the buoyancy control device to control the depth of the subsea waste net collection device A. can

3 is a view for explaining an embodiment of the tension adjusting unit shown in FIGS. 1 and 2;

Referring to FIG. 3 , the tension control unit 300 may include a cylinder 310 having a space formed therein, and a piston 320 reciprocating in the inner space of the cylinder 310 .

In addition, a piston rod 321 may be formed on one side (left side in FIG. 3) of the piston 320, and the piston rod 321 may pass through one side of the cylinder 310 and be exposed to the outside.

In addition, a cylinder head 311 may be coupled to the other side of the cylinder 310, and the cylinder head 311 may be used to return the tension adjusting unit 300 from which tension is released to its original state as described above. there is.

As shown in (a) of FIG. 3, the cylinder 310 may be formed in a closed structure within the restorable length (L) based on the inner surface in the other direction (right direction in FIG. 3), and is restorable. At least one open hole 312 may be formed at a position exceeding the length L.

Accordingly, when the position of the piston 320 is within the restorable length L, as shown in (b) of FIG. 3, the sealed structure inside the cylinder 310 is maintained, so that the support tension (three shown side by side in FIG. 3) solid arrow) may occur.

If the net tension exceeds the maximum tensile strength and the position of the piston 320 exceeds the restorable length (L), the closed structure is released by the opening hole 312 as shown in (c) of FIG. And, the piston 320 cannot return to its original position.

Subsequently, as described above, when the subsea waste net collection device A is recovered on board the ship, the operator separates the cylinder head 311, returns the position of the piston 320 to its original position, and then separates the cylinder head. By coupling 311 to the cylinder 310, it can be restored to the state shown in (a) of FIG.

In the above, the case in which the subsea waste net collection device A of the present invention is operated in a hydraulic manner has been described, and the case in which the waste net collection device A in the present invention is operated in a wire type will be described below.

FIG. 4 is a view illustrating another embodiment of FIG. 1 to which FIG. 3 is applied.

Referring to FIG. 4 , the base portion 100 and the joint portion 200 may be configured such that rotation angles are adjusted by a bending control wire 510 and an expansion control wire 520 .

For example, as shown in the center of FIG. 4 (a), when the bending control wire 510 is pulled, the rotation axis (unsigned) connected to the joint portion 200 is rotated in a counterclockwise direction, and the joint portion 200 will be bent

As another example, as shown in the right side of FIG. 4 (a), when the expansion control wire 520 is pulled, the rotation axis connected to the joint portion 200 is rotated in a clockwise direction so that the joint portion 200 is bent. The joint part 200 is unfolded.

At this time, the above-described tension adjusting unit 300 may be configured in the middle of the bending control wire 510.

Therefore, as shown in (b) of FIG. 4, in the process of catching the waste net by bending the joint 200 by pulling the bending control wire 510, if the waste net is caught on a rock or coral reef, the joint part is blocked by the waste net. Since the net tension applied to the 200 becomes greater than the maximum tensile strength, the tension adjusting unit 300 releases (dissipates) the tension, and the joint 200 rotates and unfolds due to its own weight.

Therefore, the technical features of the present invention can be easily applied to wire-type devices as well as hydraulic devices.

Hereinafter, a look at an embodiment in which the tension adjusting unit of the present invention is applied in a manner other than the damper type.

5 and 6 are diagrams illustrating another embodiment of FIG. 1 .

Referring to FIG. 5 , the tension adjusting unit 300 may include a coil spring 350 and a limiter 360 .

At this time, the rotational motion of the base part 100 and the joint part 200 can be controlled by a hydraulic device, and the joint part 200 can be maintained in a bent shape by the coil spring 350 .

In other words, one side of the coil spring 350 may be connected to the base portion 100 and the other side may be connected to the joint portion 200, and the joint portion 200 may maintain a bent shape by its own elastic restoring force. .

At this time, when the net tension applied to the joint 200 is less than the maximum tensile strength, the coil spring 350 generates an elastic restoring force that resists the net tension, and can be rotated while changing the angle within the restorable angle.

If the net tension applied to the joint 200 exceeds the maximum tensile strength, as shown in FIG. 6, the joint 200 rotates more than in FIG. 5, and the stopper 361 configured in the limiter 360 The return rotation can be limited by

In other words, if the joint part 200 rotates excessively as the maximum tensile strength is applied, the rotation of the joint part 200 is limited while the stopper 361 is operated, so that the rotation by the elastic restoring force of the coil spring can be limited. .

At this time, the stopper 361 is configured to reciprocate in the vertical direction of the joint part 200, more specifically, in the vertical direction of the plane on which the joint part 200 rotates. ), and when the joint part 200 is excessively rotated, the limitation by the joint part 200 is released, and as shown in the enlarged portion of FIG. 6, it can protrude outward from the limiter 360.

Due to the role of the stopper 361 as described above, an effect of releasing the support tension applied to the joint part 200 by the coil spring 350 can be obtained.

FIG. 7 is a view showing another embodiment of FIG. 6 .

Referring to FIG. 7 , the limiter 360 of the tension adjusting unit 300 may further include a reverse rotation tool 362 reciprocating in conjunction with the stopper 361 .

The reverse rotation sphere 362 rotates the joint 200 in the opposite direction to the return rotation direction of the coil spring when the stopper 361 is operated. In order to naturally rotate in the opposite direction to the return rotation direction, a reverse rotation inclined surface 362a as shown in the enlarged portion of FIG. 7 may be formed.

In this way, when the reverse rotation sphere 362 having the reverse rotation slope 362a is formed, the joint portion 200 is further rotated in the reverse direction to open, so that the waste net can be more easily separated.

In the above, the subsea waste net collection device according to the present invention has been described. It will be understood that the technical configuration of the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the art to which the present invention belongs.

Therefore, the embodiments described above are illustrative in all respects and should be understood as non-limiting ones.

A: Undersea waste net collection device
100: base part 200: joint part
300: tension control unit
310: cylinder 311: cylinder head
312: open hole
320: piston 321: piston rod
350: coil spring
360: limiter 361: stopper
362: reverse eastern slope 362a: reverse eastern slope
400: buoyancy body
510: bending control wire 520: unfolding control wire

Claims (10)

Base part connected to the waste net lifting device installed on the ship;
a joint part rotatably installed on the base part; and
When the waste net is collected, a support tension is generated so that the joint part maintains a bent shape at a certain angle at the base part, and when the net tension applied to the joint part by the waste net is greater than the maximum tensile strength, the joint part is not straightened. A subsea waste net collection device comprising a tension control unit for releasing the supporting tension.
According to claim 1,
The tension control unit,
It is composed of a variable length structure,
Below the maximum tensile strength, the length is varied within the restorable length by generating a support tension that resists the net tension,
When the net tension exceeds the maximum tensile strength, the supporting tension is released and the net is longer than the restorable length.
According to claim 2,
The tension control unit,
One side is configured to be rotatable to the base part,
The subsea waste net collection device, characterized in that the other side is configured to be rotatable to the joint part.
According to claim 2,
The base part and the joint part,
It is configured to adjust the rotation angle by the bending control wire and the unfolding control wire,
The tension control unit,
Subsea waste net collection device, characterized in that configured in the middle of the bending control wire.
According to claim 2,
The tension control unit,
A cylinder with a space formed therein; and
A piston rod formed on one side is exposed to the outside through one side of the cylinder and reciprocates inside the cylinder; includes,
the cylinder,
Based on the inner surface in the other direction, a closed structure is formed within the restorable length, and at least one open hole is formed at a position exceeding the restorable length,
The position of the piston,
When it is within the restorable length, the closed structure is maintained and a support tension is generated,
The submarine waste net collection device, characterized in that the closed structure is released by the opening hole when the restorable length is exceeded.
According to claim 1,
The tension control unit,
a coil spring having one side connected to the base part and the other side connected to the joint part, and having an angle variable within a restorable angle by generating an elastic restoring force that resists the net tension below a maximum tensile strength; and
and a stopper for limiting the return rotation by the elastic restoring force of the coil spring when the net tension exceeds the maximum tensile strength.
According to claim 6,
The stopper,
Subsea waste net collection device, characterized in that the joints are configured to be movable in the vertical direction.
According to claim 7,
The tension control unit,
The subsea waste net collection device further comprising a reverse rotation mechanism interlocked with the stopper and rotating the joint in the opposite direction to the return rotation direction of the coil spring when the stopper is operated.
According to claim 8,
The reverse rotation,
Submarine waste net collection device, characterized in that formed; reverse rotation inclined surface for rotating the joint portion in the opposite direction to the return rotation direction of the coil spring.
According to any one of claims 1 to 9,
The subsea waste net collection device further comprises a buoyancy body that allows the base portion to be positioned higher than the joint portion.

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