Underwater resource recovery device

Abstract

To provide an underwater resource recovery device that does not have any impact on the surrounding environment. [Solution] A water resource recovery device is provided that collects or extracts biological resources, plant resources, organic resources, or inorganic resources from the sea, lakes, or rivers into the bottom sealed member through the resource recovery opening 2b of the bottom sealed member, or collects or extracts biological resources, plant resources, organic resources, or inorganic resources near the seabed, lakebed, or riverbed into the bottom sealed member, captures the collected or extracted resources into the resource recovery pipe member 1 through the resource recovery opening 2b of the bottom sealed member, and only draws up seawater, lake water, or river water from the resource recovery pipe member 1, and since the collection or extraction takes place within the bottom sealed member 2 sealed by the resource recovery pipe member 1, it does not affect the surrounding environment in any way.

Description

Technical Field

[0001] The present invention relates to an underwater resource recovery device provided with a resource recovery structure. The underwater resource recovery device according to the present invention is applicable to the collection or excavation of biological resources, plant resources, organic resources or inorganic resources in the sea, lake and river, or the collection of biological resources, plant resources or the excavation of organic resources or inorganic resources on the seabed, lake bottom and river bottom.

Background Art

[0002] Japan ranks 60th in the world in terms of land area, but the area of its exclusive economic zone ranks 6th in the world. In particular, it is necessary to effectively utilize organic resources or inorganic resources on the seabed. However, although a riser system (Japanese Patent No. 4427441) used when excavating the seabed ground and an underwater long pipe (Utility Model Registration No. 2593664) equipped with a bellows suspended from a floating offshore structure have been proposed in the past, there are problems such as environmental destruction and they have not yet been implemented or put into practical use. The applicant holds Patent No. 6427727 and other related inventions.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a novel underwater resource recovery device and recovery method that solve the above problems and do not affect the surrounding environment at all.

Means for Solving the Problems

[0005] The present invention provides an underwater resource recovery apparatus and an underwater resource recovery method characterized by a resource recovery pipe member having an opening at the upper end of one end for discharging water below the water surface, and a bottom sealing member sealed by the resource recovery pipe member, through which biological resources or plant resources are collected or organic or inorganic resources are extracted, and the resource recovery pipe member draws up seawater, lake water, or river water from the resource recovery opening of the bottom sealing member to collect or extract resources from the resource recovery opening. The underwater resource recovery device according to claim 1 includes: a resource recovery pipe member 1 having water discharge openings 1a above and below the water surface and an opening 1b at the bottom; a bottom sealing member 2 having a sealing section 2a that moves inside the pipe of the resource recovery pipe member 1 and has an opening at the bottom, and a beam 2c having a resource recovery opening 2b opposite the opening, and a relatively long and thick vertical penetrating pipe 2d inside the resource recovery opening 2b; a resource recovery operating member 3 that moves up and down inside the bottom sealing member 2 and has a sampling section 3a or mining section 3a on the bottom side, and has a ground operating section 3c at the other end of a penetrating shaft 3b that penetrates the vertical penetrating pipe 2d on the upper surface of the resource recovery pipe member 1; and an internal member 4 with a specific gravity less than water that closes the water discharge opening 1a when the water level inside the resource recovery pipe member 1 is the same as the water level outside the resource recovery pipe member 1. The resource recovery pipe member 1 is equipped with a compression spring member located at the top of the resource recovery pipe member 1 that pushes the resource recovery operating member 3 upward, and by pushing down the resource recovery operating member 3 against the compression spring member, resources are collected or mined within the bottom sealing member 2, and at the same time, the air at the top of the resource recovery pipe member 1 is exhausted, thereby moving the water level inside the resource recovery pipe member 1 above the water level outside the resource recovery pipe member 1, and moving the internal member 4 above the water level outside the resource recovery pipe member 1, thereby opening the water discharge opening 1a and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member 1 from the water discharge opening 1a, thereby gradually moving the seawater, lake water, or river water inside the water discharge pipe member 1 upward, and by sucking up the seawater, lake water, or river water inside the resource recovery pipe member 1, resources are collected or mined and captured through the resource recovery pipe member 1 via the resource recovery opening of the bottom sealing member, thereby recovering the resources. The underwater resource recovery device according to claim 2 comprises a bottom sealing member 2 having a sealed section 2a having an opening on its bottom surface and a beam 2c having a resource recovery opening 2b opposite the opening, and a relatively long and thick vertical penetrating pipe 2d inside the resource recovery opening 2b; a resource recovery pipe member 1 having water discharge openings 1a above and below the water surface, with the lower opening sealing the outside of the resource recovery opening 2b and in contact with the bottom sealing member 2; a resource recovery operating member 3 having a sampling section 3a or mining section 3a on the bottom side above and below the bottom sealing member 2, and a ground operating section 3c on the upper surface of the resource recovery pipe member 1 at the other end of a penetrating shaft 3b that penetrates the vertical penetrating pipe 2d; and an internal member 4 with a specific gravity less than water that closes the water discharge opening 1a when the water surface inside the resource recovery pipe member 1 is the same as the water surface outside the resource recovery pipe member 1. The resource recovery pipe member 1 is equipped with a compression spring member located at the top of the resource recovery pipe member 1 that pushes the resource recovery operating member upward, and the resource recovery operating member 3 is pushed down against the compression spring member to collect or extract resources within the bottom sealing member 2, exhausting the air from the top of the resource recovery pipe member 1 to move the water level inside the resource recovery pipe member 1 above the water level outside the resource recovery pipe member, moving the internal member 4 above the water level outside the resource recovery pipe member, opening the water discharge opening 1a and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member from the water discharge opening 1a, gradually moving the seawater, lake water, or river water inside the resource recovery pipe member upward, and the seawater, lake water, or river water inside the resource recovery pipe member is sucked up, thereby collecting or extracting and capturing the resources through the resource recovery pipe member 1 via the resource recovery opening of the bottom sealing member. The underwater resource recovery device according to claim 3 includes: a resource recovery pipe member 1 having a through-pipe section 1d in the upper center, an air discharge opening 1c at the upper part of one end and a water discharge opening 1a at the lower part above the water surface, and an opening 1b at the lower part of the other end for collecting or mining resources; a floating structure having a water storage means for storing water discharged from the water discharge opening 1a of the resource recovery pipe member 1; an internal member 4 with a specific gravity less than water that closes the water discharge opening 1a when the water surface inside the resource recovery pipe member 1 is the same as the water surface outside the resource recovery pipe member 1; a natural energy power generation means; an air exhaust means connected to the air discharge opening 1c and exhausting the air above the internal member inside the resource recovery pipe member 1 using the natural energy power generation means; an imaging means provided at the lower part of the resource recovery operation member 3; and a display means provided at the upper end of the resource recovery pipe member 1 for displaying the output of the imaging means. The system is characterized by the following: the display means detects resources at the lower part of the resource recovery operation member 3, and the air exhaust means exhausts the air above the internal member inside the resource recovery pipe member 1, thereby moving the water level inside the resource recovery pipe member 1 above the water level outside the resource recovery pipe member 1 and moving the internal member to the upper part inside the resource recovery pipe member 1, thereby opening the water discharge opening 1a and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member 1 from the water discharge opening 1a, thereby gradually moving the seawater, lake water, or river water inside the resource recovery pipe member 1 to the upper part and sucking up the detected resources, and collecting or mining the resources into the resource recovery pipe member 1 from the resource recovery opening 2b, and after recovering the resources from the water discharge opening 1a, capturing the resources. The underwater resource recovery device according to claim 4 is the underwater resource recovery device according to claims 1 to 3, characterized in that the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter than the lower part, and the lower part is composed of multiple overlapping pipes of adjustable length, with the inner and outer diameters decreasing towards the bottom. The underwater resource recovery device according to claim 5 is characterized in that the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter than the lower part, and the middle part of the resource recovery pipe member 1 is a flexible or pliable pipe with a smaller inner and outer diameter. The underwater resource recovery apparatus according to claim 6 is characterized in that the resources are recovered by stacking the resource recovery pipe member 1, whose length is adjustable, multiple times again. [Effects of the Invention]

[0006] Biological resources, plant resources, organic resources, or inorganic resources from the sea, lakes, or rivers are collected or extracted into the bottom sealing member 2 through the resource recovery opening 2b of the bottom sealing member 2. Alternatively, biological resources, plant resources, organic resources, or inorganic resources near the seabed, lakebed, or riverbed are collected or extracted into the bottom sealing member 2. The collected or extracted resources are then captured into the resource recovery pipe member 1 through the resource recovery opening 2b of the bottom sealing member 2. Only seawater, lake water, or river water is drawn up from the resource recovery pipe member 1. Since the collection or extraction takes place within the bottom sealing member 2 sealed by the resource recovery pipe member 1, it does not affect the surrounding environment in any way. [Brief explanation of the drawing]

[0007] [Figure 1] This shows one embodiment in which the bottom sealing member 2 moves inside the resource recovery pipe member 1. [Figure 2] This shows one embodiment in which the resource recovery pipe member 1 seals the outside of the resource recovery opening 2b of the bottom sealing member 2 and comes into contact with the bottom sealing member 2. [Figure 3] The diagram shows a plan view of the resource recovery opening 2b, beam 2c, and vertical penetrating pipe 2d of the bottom sealing member 2. [Modes for carrying out the invention]

[0008] Figure 1 shows one embodiment in which the bottom sealing member 2 moves inside the resource recovery pipe member 1. A resource recovery pipe member 1 having a through-pipe section 1d in the upper center, an air discharge opening 1c at the upper part of one end and a water discharge opening 1a at the lower part above the water surface, and an opening 1b at the lower part of the other end for collecting or mining resources; a bottom sealing member 2 having a sealed section 2a that moves inside the pipe of the resource recovery pipe member 1 and has an opening on its bottom surface, and a beam 2c having a resource recovery opening 2b opposite the opening, and a relatively long and thick vertical through-pipe 2d inside the resource recovery opening 2b; a resource recovery operating member 3 having a collection section 3a or mining section 3a on the bottom side that moves up and down inside the bottom sealing section 2a, and a through-shaft 3b that passes through the vertical through-pipe 2d passes through the through-pipe section 1d of the resource recovery pipe member 1 at its upper surface, and a ground operating section 3c at the top of the resource recovery pipe member 1. When the water level inside the resource recovery pipe member 1 is the same as the water level outside the resource recovery pipe member 1, the water discharge opening 1a is closed by an internal member 4 with a specific gravity less than water. The resource recovery pipe member 1 is equipped with a compression spring member (not shown) located at the top of the pipe member 1 that pushes the resource recovery operating member 3 upward. By pushing down the resource recovery operating member 3 against the compression spring member, resources are collected or mined within the bottom sealing member 2, and the air above the resource recovery pipe member 1 is exhausted, causing the water level inside the resource recovery pipe member 1 to rise above the water level outside the pipe member 1, opening the water discharge opening 1a and releasing seawater, lake water, or river water from the water discharge opening 1a to the outside of the resource recovery pipe member 1, gradually moving the seawater, lake water, or river water inside the pipe member 1 upwards. By sucking up the seawater, lake water, or river water inside the pipe member 1, the resources are collected or mined through the resource recovery pipe member 1 via the resource recovery opening 2b sealed by the bottom sealing member 2, thereby recovering the resources. Figure 2 shows a resource recovery pipe member 1 having a through-pipe section 1d in the upper center, an air discharge opening 1c at the upper part of one end and a water discharge opening 1a at the lower part above the water surface, and an opening 1b at the lower part of the other end for collecting or mining resources, and an embodiment in which the opening 1b of the resource recovery pipe member 1 seals the outside of the resource recovery opening 2b of the bottom sealing member 2 and comes into contact with the bottom sealing member 2. A bottom sealing member 2 comprising a sealed section 2a having an opening on its bottom surface and a beam 2c having a resource recovery opening 2b opposite the opening, and a relatively long and thick vertical penetrating pipe 2d inside the resource recovery opening 2b; a resource recovery pipe member 1 comprising water discharge openings 1a above and below the water surface, with the opening 1b at the bottom sealing the outside of the resource recovery opening 2b and contacting the bottom sealing member 2; a resource recovery operating member 3 comprising a sampling section 3a or mining section 3a on the bottom side of the bottom sealing member 2, with a penetrating shaft 3b passing through the vertical penetrating pipe 2c and penetrating the penetrating pipe section 1d of the resource recovery pipe member 1 at its upper surface, and a ground operating section 3c at the top of the resource recovery pipe member 1; and an internal member 4 with a specific gravity less than water that closes the water discharge opening 1a when the water level inside the resource recovery pipe member 1 is the same as the water level outside the resource recovery pipe member 1. The resource recovery pipe member 1 is equipped with a compression spring member (not shown) located at the top of the resource recovery pipe member 1 that pushes the resource recovery operating member 3 upward, and by pushing down the resource recovery operating member 3 against the compression spring member and collecting or mining resources within the bottom sealing member 2, and exhausting the air above the resource recovery member 1, the water level inside the resource recovery pipe member 1 is moved above the water level outside the resource recovery pipe member 1, the internal member 4 is moved above the water level outside the resource recovery pipe member 1, the water discharge opening 1a is opened and seawater, lake water, or river water is discharged from the water discharge opening 1a to the outside of the resource recovery pipe member 1, and the seawater, lake water, or river water inside the resource recovery pipe member 1 is gradually moved upward, thereby sucking up the seawater, lake water, or river water inside the resource recovery pipe member 1 and collecting or mining resources through the resource recovery pipe member 1 via the resource recovery opening 2b sealed by the bottom sealing member 2 to recover the resources.

[0009] Another embodiment of the present invention includes a resource recovery pipe member 1 having a through-pipe section 1d in the upper center, an air discharge opening 1c at the upper part of one end and a water discharge opening 1a below the water surface, and an opening 1b at the lower part of the other end for collecting or mining resources; a floating structure having a water storage means for storing water discharged from the water discharge opening 1a of the resource recovery pipe member 1; an internal member 4 with a specific gravity less than water that closes the water discharge opening 1a when the water level inside the resource recovery pipe member 1 is the same as the water level outside the resource recovery pipe member 1; a natural energy power generation means; an air exhaust means connected to the air discharge opening 1c and exhausting the air above the internal member inside the resource recovery pipe member 1 using the natural energy power generation means; an imaging means provided near the sealed section 3a at the lower part of the resource recovery operation member 3; and a display provided at the upper end of the resource recovery pipe member 1 for displaying the output of the imaging means. The system includes means for detecting resources at the lower part of the resource recovery operation member 3 using the display means and exhausting air from above the internal member inside the resource recovery pipe member 1 using the air exhaust means, thereby moving the water level inside the resource recovery pipe member 1 above the water level outside the resource recovery pipe member 1 and moving the internal member to the upper part inside the resource recovery pipe member 1, thereby opening the water discharge opening 1a and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member 1 from the water discharge opening 1a, thereby gradually moving the seawater, lake water, or river water inside the resource recovery pipe member 1 upwards and sucking it up, thereby sucking up the resources detected by the imaging means from the resource recovery opening 2b, thereby collecting or mining the resources inside the resource recovery pipe member 1, and after recovering the resources from the water discharge opening 1a, capturing the resources and recovering them.

[0010] When recovering methane hydrate, the resource recovery operating member 3 is slightly pushed down against the compression spring member to extract the methane hydrate within the bottom sealing member 2. Since the specific gravity is less than 1, the methane hydrate is collected and captured through the resource recovery opening 2b sealed by the bottom sealing member 2 via the resource recovery pipe member 1. When mining rare metals, cobalt nodules, and other mineral nodules, the resource recovery operating member 3 is pushed down to the seabed against the compression spring member, the resources are sealed within the bottom sealing member 2, and mining is performed. The resources are then collected and captured through the sealed resource recovery opening 2b via the resource recovery pipe member 1, thereby recovering the rare metals, cobalt nodules, and other mineral nodules.

[0011] The resource recovery pipe member 1 is equipped with a flange directly below the water discharge opening 1a, and can be configured to penetrate a circular hole in, for example, an annular floating structure on the surface of the sea, lake, or river, and be held by the annular floating structure. Furthermore, it is also possible to implement a configuration in which the annular floating structure is moved using, for example, electricity from natural energy.

[0012] It is also possible to construct an underwater resource recovery device in which the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter compared to the lower part, and the lower part is composed of multiple overlapping pipes with adjustable length, where the inner and outer diameters become smaller towards the bottom. An underwater resource recovery device is also possible, characterized in that the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter compared to the lower part, and the middle part of the resource recovery pipe member 1 is a flexible or pliable pipe with a smaller inner and outer diameter. An underwater resource recovery device is also possible, characterized by recovering resources by stacking the resource recovery pipe members 1, whose length is adjustable, in multiple layers. In the embodiment shown in Figure 2, the resource recovery pipe member 1 is a two-part structure consisting of a lower resource recovery pipe member 1 with an opening 1b and adjustable length, and an upper resource recovery pipe member 1 with a water discharge opening 1a located below the water surface of the sea, lake, or river. The two parts can be joined together when the resource recovery pipe member 1 is laid. The lower resource recovery pipe member 1, which is adjustable in length and consists of multiple layers of pipe with smaller inner and outer diameters towards the bottom, is returned to a multiple-layer state by the resource recovery operation member 3 before resources are recovered. An embodiment of the lower resource recovery pipe member 1 is also possible, which consists of a bellows pipe with an adjustable length and smaller inner and outer diameters towards the bottom.

[0013] A first embodiment of the resource recovery method according to the present invention is provided with an air discharge opening 1c and a water discharge opening 1a at the upper end of one end of a floating structure. A first step of laying, for example, a resource recovery pipe member 1 having openings 1b at the lower part of the other end to the sea, lake, river, or to the seabed, lake bottom, or river bottom; and when the internal water surface penetrates the inside of the resource recovery pipe member 1 and is the same as the water surface outside the resource recovery pipe member 1, exhausting the air above an internal member 4 having a specific gravity smaller than water to close the water discharge opening 1a, thereby moving the water surface inside the resource recovery pipe member 1 above the water surface outside the resource recovery pipe member 1, moving the internal member 4 to the upper part inside the resource recovery pipe member 1, discharging seawater, lake water, or river water from the water discharge opening 1a to a water storage tank outside the resource recovery pipe member 1, gradually moving the seawater, lake water, or river water inside the resource recovery pipe member 1 upward and sucking it up, so as to collect or extract the resources near the sea, lake, river, seabed, lake bottom, or river bottom into the resource recovery pipe member 1, or capturing the biological resources, plant resources, or precipitated organic or inorganic resources at the lower part of the resource recovery pipe member 1 into the resource recovery pipe member 1.

[0014] The resource recovery pipe member 1 is composed of a two-body structure including a lower resource recovery pipe member 1 with an opening 1b and adjustable length, and an upper resource recovery pipe member 1 with an air discharge opening 1c, a water discharge opening 1a, and a flange directly below the water discharge opening 1a. The first step includes adjusting the length of the lower resource recovery pipe member 1 and laying the opening 1b near the sea, lake, river, seabed, lake bottom, or river bottom, and laying the upper resource recovery pipe member 1 from the floating structure and connecting it to the lower resource recovery pipe member 1.

Explanation of Signs

[0015] 1 Resource recovery pipe member 1a Water discharge opening 1b Opening 1c Air discharge opening 1d Vertical pipe part 2 Bottom surface sealing member 2a Sealing part 2b Resource recovery opening 2c Beam 2d Vertical through pipe 3 Resource recovery operation member 3a Collection part or excavation part 3b Through shaft 3c Ground operation part 4 Internal member

Claims

1. A resource recovery pipe member 1 having water discharge openings above and below the water surface, and also having an opening at the bottom; a bottom sealing member having a sealed section that moves inside the pipe of the resource recovery pipe member and has an opening at the bottom surface, a beam having a resource recovery opening opposite the opening, and a relatively long and thick vertical penetrating pipe inside the resource recovery opening; a resource recovery operating member having a collection section or mining section on the bottom side that moves up and down inside the bottom sealing member and having a ground operating section on the upper surface of the resource recovery pipe member 1 at the other end of a penetrating shaft that penetrates the vertical penetrating pipe; and an internal member with a specific gravity less than water that closes the water discharge opening when the water level inside the resource recovery pipe member is the same as the water level outside the resource recovery pipe member. A bottom resource recovery device characterized by comprising a compression spring member located at the top of the resource recovery pipe member and pushing the resource recovery operating member upward, the resource recovery operating member being pushed down against the compression spring member to collect or extract resources within the bottom sealed member, and the air at the top of the resource recovery pipe member being exhausted, thereby moving the water level inside the resource recovery pipe member above the water level outside the resource recovery pipe member, and moving the internal member above the water level outside the resource recovery pipe member, thereby opening the water discharge opening and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member from the water discharge opening, thereby gradually moving the seawater, lake water, or river water inside the resource recovery pipe member upward, and sucking up the seawater, lake water, or river water inside the resource recovery pipe member, thereby collecting or extracting resources through the resource recovery opening of the bottom sealed member via the resource recovery pipe member 1 to recover the resources.

2. A bottom sealing member comprising a sealed section having an opening on its bottom surface and a beam having a resource recovery opening opposite the opening, and a relatively long and thick vertical penetrating pipe inside the resource recovery opening; a resource recovery pipe member comprising water discharge openings above and below the water surface, with its lower part sealing the outside of the resource recovery opening and in contact with the bottom sealing member; a resource recovery operating member comprising a sampling or mining section on the bottom side that moves up and down inside the bottom sealing member, and having a ground operating section on the upper surface of the resource recovery pipe member 1 at the other end of a penetrating shaft that penetrates the vertical penetrating pipe; and an internal member with a specific gravity less than water that closes the water discharge opening when the water level inside the resource recovery pipe member is the same as the water level outside the resource recovery pipe member. A bottom resource recovery device characterized by comprising a compression spring member located at the top of the resource recovery pipe member and pushing the resource recovery operating member upward, the resource recovery operating member being pushed down against the compression spring member to collect or extract resources within the bottom sealed member, and the air at the top of the resource recovery pipe member being exhausted, thereby moving the water level inside the resource recovery pipe member above the water level outside the resource recovery pipe member, and moving the internal member above the water level outside the resource recovery pipe member, thereby opening the water discharge opening and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member from the water discharge opening, thereby gradually moving the seawater, lake water, or river water inside the resource recovery pipe member upward, and sucking up the seawater, lake water, or river water inside the resource recovery pipe member, thereby collecting or extracting resources from the resource recovery opening of the bottom sealed member via the resource recovery pipe member and capturing the resources.

3. A resource recovery pipe member 1 having a through-pipe section 1d in the upper center, an air discharge opening 1c at the upper part of one end and a water discharge opening 1a at the lower part above the water surface, and an opening 1b at the lower part of the other end for collecting or mining resources; a floating structure having a water storage means for storing water discharged from the water discharge opening 1a of the resource recovery pipe member 1; an internal member 4 with a specific gravity less than water that closes the water discharge opening when the water level inside the resource recovery pipe member 1 is the same as the water level outside the resource recovery pipe member 1; a natural energy power generation means; an air exhaust means connected to the air discharge opening and exhausting the air above the internal member inside the resource recovery pipe member 1 using the natural energy power generation means; an imaging means provided at the lower part of the resource recovery operation member; and a display means provided at the upper end of the resource recovery pipe member 1 for displaying the output of the imaging means. A bottom resource recovery device characterized by detecting resources at the bottom of the resource recovery operation member using the display means, and exhausting the air above the internal member inside the resource recovery pipe member 1 using the air exhaust means to move the water level inside the resource recovery pipe member 1 above the water level outside the resource recovery pipe member 1, thereby moving the internal member to the upper part inside the resource recovery pipe member 1, thereby opening the water discharge opening and releasing seawater, lake water, or river water to the outside of the resource recovery pipe member 1 from the water discharge opening, thereby gradually moving the seawater, lake water, or river water inside the resource recovery pipe member 1 to the upper part and sucking up the detected resources through the resource recovery opening of the bottom sealing member via the resource recovery pipe member 1, and then capturing the resources after recovering them from the water discharge opening 1a.

4. The underwater resource recovery device according to claims 1 to 3, characterized in that the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter than the lower part, and the lower part is composed of multiple overlapping pipes of adjustable length, with the inner and outer diameters decreasing towards the bottom.

5. The underwater resource recovery device according to claims 1 to 3, characterized in that the upper part of the resource recovery pipe member 1 has a larger inner and outer diameter compared to the lower part, and the middle part of the resource recovery pipe member 1 is a flexible or pliable pipe with a smaller inner and outer diameter.

6. The underwater resource recovery apparatus according to claim 4, characterized in that the resource recovery pipe member 1, whose length is adjustable, is again stacked in multiple layers to recover resources.

Images