Underwater environment passive time-delay passive separation fixed-depth recovery device

Abstract

The invention discloses an underwater environment passive time-delay passive separation fixed-depth recovery device which is characterized in that a cabin cover is fixed on a cabin shell through hydrosol and a cabin cover fixing ring, and the cabin cover is positioned on the outer side of the top end of a buoyancy tank; the first end of the spring sleeve is fixedly connected to the inner wall of the cabin shell, and the second end is connected to the bottom end of the buoyancy tank through hydrosol; the spring is installed in the spring sleeve, and the spring is compressed through the water-soluble vinylon yarn in the initial state. After the recovery device enters water, water enters a cabin shell through a cabin cover water inlet and enters a spring sleeve through a pressure valve after reaching a preset depth, a yarn loses efficacy, a spring generates thrust to the buoyancy tank to accelerate the failure of hydrosol, and finally the buoyancy tank pushes the cabin cover open to get out of the cabin. The buoyancy box floats up to the water surface under the action of positive buoyancy and draws the first cable out of water, and the first cable draws the second cable out of water and finally draws the recovery device out of water. The device disclosed by the invention has important guiding significance for salvage in an underwater complex environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of positioning and recovery, and in particular relates to a depth-fixing recovery device for underwater equipment. Background Art

[0002] Salvaging apparatus refers to a device used to salvage and recover items from water or other specific environments. Underwater salvage operations are often affected by factors such as current sea conditions, salvage depth, and complex underwater environments. Salvage operations at great depths are particularly dangerous.

[0003] Existing recovery methods generally involve arranging floats and gas cylinders inside the device. During recovery, the hatch is opened by blowing up the device, driving the floats and gas cylinders out of the cabin. The floats pull the cables to the surface, thereby achieving equipment recovery and positioning. However, this method requires a large space and is not suitable for devices with compact structures. Alternatively, a buoyancy box, an igniter, and a multi-stage rod are arranged inside the device. During recovery, the multi-stage rod pushes the float out of the cabin, and the float pulls the cables to the surface, thereby achieving equipment recovery. However, this method has poor reliability and a low safety factor. Summary of the Invention

[0004] The present invention aims to overcome the above-mentioned drawbacks by providing a passive, time-delayed, passive separation and depth-fixing recovery device for underwater environments, resolving the technical problem of traditional recovery devices requiring dedicated control circuits. The present invention provides a passive, time-delayed, passive separation and recovery device for underwater environments, which has important guiding significance for salvaging in complex underwater environments.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The present invention discloses a passive, delayed, separation, and depth-fixing recovery device for an underwater environment, comprising a hull, a hatch cover, a buoyancy tank, a spring, a spring sleeve, a pressure valve, a water-soluble vinylon yarn, and a cable pulling mechanism. The hatch cover is fixed to the hull via hydrosol and a hatch cover fixing ring, and is located outside the top end of the buoyancy tank. The first end of the spring sleeve is fixedly connected to the inner wall of the hull, and the second end of the spring sleeve is connected to the bottom end of the buoyancy tank via hydrosol. The pressure valve is disposed on the water inlet of the spring sleeve side wall. The spring is installed in the spring sleeve, and in an initial state, the spring is compressed by the water-soluble vinylon yarn. After the recovery device enters the water, water enters the hull through the hatch cover water inlet. When the water depth reaches a preset depth, water enters the spring sleeve through the pressure valve, causing the yarn to fail. The spring generates thrust on the buoyancy tank, accelerating the failure of the hydrosol, and ultimately pushing the hatch cover open and out of the cabin. Under the action of positive buoyancy, the buoyancy tank rises to the water surface and pulls a first cable out of the water. The first cable pulls a second cable out of the water, and finally, the second cable pulls the recovery device out of the water. The present invention provides a passive time-delayed depth-fixed passive separation and recovery device for an underwater environment, which has important guiding significance for salvaging in complex underwater environments.

[0007] Specifically, the present invention provides an underwater environment passive time-delayed passive separation and depth-fixing recovery device, which includes: a hull, a hatch, a buoyancy box, a spring, a spring sleeve, a pressure valve, a water-soluble vinylon yarn and a cable traction mechanism.

[0008] The hatch cover is connected to the hull by hydrosol and is located outside the top of the buoyancy tank;

[0009] The first end of the spring sleeve is fixedly connected to the inner wall of the hull, and the second end of the spring sleeve is connected to the bottom end of the buoyancy tank through a hydrosol. The pressure valve is set on the water inlet of the side wall of the spring sleeve. The spring is installed in the spring sleeve. In the initial state, the spring is compressed by the water-soluble vinylon yarn.

[0010] After the recovery device enters the water, water enters the hull through the water inlet of the hatch cover. When the water depth reaches the preset depth, water enters the spring sleeve through the pressure valve, causing the water-soluble vinylon yarn to fail. The spring generates thrust on the buoyancy box, accelerating the failure of the hydrosol between the spring sleeve and the buoyancy box. Then, the buoyancy box pushes the hatch cover under the thrust of the spring, accelerating the failure of the hydrosol between the hatch cover and the hull, and finally the buoyancy box pushes the hatch cover open and exits the cabin.

[0011] The buoyancy box floats to the water surface under the action of positive buoyancy and is pulled out of the water by the cable traction mechanism to pull the recovery device.

[0012] Furthermore, the hatch cover is connected to the hull via a hatch cover fixing ring and a hatch cover sealing ring;

[0013] The hatch cover sealing ring and the cabin shell are connected by bolts, the hatch cover fixing ring and the hatch cover sealing ring are bonded by strong glue, and the hatch cover and the hatch cover fixing ring are bonded by water-soluble glue;

[0014] The hatch cover fixing ring is a transparent acrylic plate used to achieve light curing of the hydrosol.

[0015] Furthermore, the buoyancy tank includes a cylindrical portion at the bottom and a conical portion at the top;

[0016] The float box, the spring sleeve and the spring are coaxially arranged.

[0017] Furthermore, a spring upper pressure plate and a spring lower pressure plate are welded to the upper and lower ends of the spring respectively. The spring upper pressure plate and the spring lower pressure plate are perpendicular to the axis of the spring. Water-soluble vinylon yarn is wound inside and outside the combination of the spring upper pressure plate, the spring lower pressure plate and the spring, so that the spring is in a compressed state.

[0018] The spring baffle is placed at the second end of the spring sleeve. In the initial state, the spring baffle contacts the bottom end of the float. After the water-soluble vinyl yarn fails, the spring pushes the float through the spring baffle.

[0019] Furthermore, the spring sleeve forms an internal sealing structure through the first spring compartment upper end sealing ring, the second spring compartment upper end sealing ring, the spring compartment lower end sealing ring and the spring baffle;

[0020] The center of the spring baffle is fixedly connected to the spring upper pressure plate by bolts. The spring baffle and the spring upper pressure plate are sealed by the first spring compartment upper end sealing ring. The edge of the spring baffle is sealed with the second end of the spring sleeve by the second spring compartment upper end sealing ring.

[0021] The first end of the spring sleeve is fixedly connected to the cabin shell by bolts, and the spring sleeve and the cabin shell are sealed by a sealing ring at the lower end of the spring cabin.

[0022] Furthermore, the bottom end of the buoyancy box is connected to the second end of the spring sleeve through a buoyancy box fixing ring;

[0023] The buoyancy chamber fixing ring is connected to the second end of the spring sleeve by strong glue;

[0024] The bottom end of the buoyancy box is connected to the buoyancy box fixing ring through hydrosol;

[0025] The buoyancy tank fixing ring is made of transparent acrylic plate.

[0026] Furthermore, it also includes a position indicating mechanism;

[0027] The position indicating mechanism includes a flashing position indicating light, a battery and an elastic switch;

[0028] The flashing position indicator light is located at the top of the buoyancy tank, the elastic switch is located at the bottom of the buoyancy tank, and the battery is used for power supply;

[0029] The elastic switch is turned on after the buoyancy box leaves the cabin, causing the flashing position indicator light to flash, thereby realizing the position indication of the buoyancy box.

[0030] Further, the cable pulling mechanism includes a first cable, a first cable sleeve, a second cable, a second cable compartment and an angular contact bearing;

[0031] The first cable sleeve is arranged on the outside of the buoyancy box, the first cable sleeve is fixedly connected to the second end of the spring sleeve, the first cable is evenly wound around the outside of the first cable sleeve, the first cable head is connected to the buoyancy box, the first cable tail is connected to the second cable head, the second cable is evenly wound around the outside of the second cable compartment, and the second cable compartment is fixedly connected to the compartment shell through an angular contact bearing.

[0032] Furthermore, by adjusting the spring parameters of the pressure valve, the recovery triggering pressure value of the recovery device, that is, the recovery triggering water depth, is controlled.

[0033] Furthermore, a combination of a hatch cover, a buoyancy box, a spring, a spring sleeve, a pressure valve, a water-soluble vinylon yarn and a cable traction mechanism forms a recovery component. The recovery device includes two sets of recovery components, and the buoyancy boxes in the two sets of recovery components are 180 degrees out of the cabin direction.

[0034] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0035] (1) The present invention can realize the fixed-depth triggering of the power device through the pressure valve, thereby realizing the fixed-depth recovery of underwater equipment.

[0036] (2) The present invention can design the depth setting trigger threshold by designing the pressure valve spring parameters, thereby changing the recovery depth of the depth setting device.

[0037] (3) The present invention can ensure the compression of the spring baffle and spring sleeve, the spring baffle and the spring upper pressure plate sealing ring by designing the number of turns of the water-soluble wire, thereby ensuring the sealing performance of the power compartment.

[0038] (4) The sealing structure proposed in the present invention can keep the power compartment dry for a long time, thereby increasing the reliability of the fixed depth trigger device.

[0039] (5) The buoyancy box proposed in the present invention is fixed by hydrosol and a buoyancy box fixing ring. After the equipment enters the water, under the action of the spring, the hydrosol accelerates its failure, and the buoyancy box floats to the water surface to indicate the position.

[0040] (6) The present invention only requires a battery for position indication and does not require a dedicated control circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of the passive time-delayed, depth-fixed, passive separation and recovery device for underwater environments of the present invention, wherein (a) is a front view and (b) is a top view;

[0042] Figure 2 This is a simplified axial diagram of the passive time-delayed, depth-fixed, passive separation and recovery device for underwater environments according to the present invention;

[0043] Figure 3 Schematic diagram of the passive separation and recovery device for underwater environment with passive time delay and depth setting reaching the pressure valve threshold of the present invention;

[0044] Figure 4 This is a schematic diagram of the power device of the present invention triggering the buoyancy box to pop out. DETAILED DESCRIPTION

[0045] The following detailed description of the present invention will make the features and advantages of the present invention more clear and explicit.

[0046] The word "exemplary" is used exclusively herein to mean "serving as an example, example, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0047] like Figure 1 、 Figure 2 In a specific embodiment, the present invention proposes an underwater environment passive delayed passive separation and depth-fixing recovery device, including a hull 1, an end cover 2, a hatch cover 3, a hatch cover fixing ring 4, a hatch cover sealing ring 5, a buoyancy box 6, a position indicator light 7, a battery 8, an elastic switch 9, a first cable 10, a first cable sleeve 11, a spring 12, a spring sleeve 13, a pressure valve 14, a second cable 15, a second cable compartment 16, an angular contact bearing 17, a second cable compartment fixing ring 18, a bearing fixing ring 19, a buoyancy box fixing ring 20, a spring baffle 21, a spring upper pressure plate 22, a spring lower pressure plate 23, a water-soluble vinyl yarn 24, a first spring compartment upper end sealing ring 25, a second spring compartment upper end sealing ring 26, a spring compartment upper fixing screw 27, a spring compartment lower end sealing ring 28, and a spring compartment lower fixing screw 29.

[0048] The hatch cover 3, hatch cover retaining ring 4, and hatch cover sealing ring 5 are coaxially arranged, as are the spring sleeve 13, spring 12, and buoyancy chamber 6. The hatch cover 3, buoyancy chamber 6, spring 12, spring sleeve 13, pressure valve 14, water-soluble vinyl yarn 24, and cable pulling mechanism form a buoyancy assembly. The recovery device includes two buoyancy assemblies, with the buoyancy chamber 6 in each buoyancy assembly oriented 180 degrees out of the cabin. Two sets of second cables 15, a second cable compartment 16, and an angular contact bearing 17 are rigidly connected to the end cover 2 via the second cable compartment retaining ring 18, the bearing retaining ring 19, and bolts. The end cover 2 is fixedly connected to both ends of the hull 1. The second cable compartment 16 is coaxially arranged with the end cap 2 via two angular contact bearings 17. The second cable 15 is evenly wound around the outside of the second cable compartment 16. The outer ring of the angular contact bearing 17 is connected to the second cable compartment 16, while the inner ring of the angular contact bearing 17 is connected to the end cap 2. The outer ring of the angular contact bearing 17 is secured by a second cable compartment retaining ring 18, while the inner ring of the angular contact bearing 17 is secured by a bearing retaining ring 19. The ascent of the buoyancy chamber 6 drives the first cable 10 upward. After the first cable 10 reaches the water surface, it drives the second cable 15 upward, and the second cable 15 pulls the entire device out of the water.

[0049] The hatch cover 3 is fixed by means of hydrosol, a hatch cover fixing ring 4 and a hatch cover sealing ring 5 .

[0050] The buoyancy box 6 is fixed by hydrosol and a buoyancy box fixing ring 20, and the buoyancy box fixing ring 20 is fixed to the spring sleeve 13 by bolts. The elastic switch 9 at the bottom of the buoyancy box 6 is automatically turned on after the buoyancy box 6 pops out of the hatch, so that the position indicator light 7 at the top of the buoyancy box 6 flashes to help the buoyancy box indicate its position.

[0051] like Figure 3 、 Figure 4 The center of the spring baffle 21 is fixedly connected to the spring upper pressure plate 22 by the spring compartment upper fixing screws 27, and the spring baffle 21 and the spring upper pressure plate 22 are sealed by the first spring compartment upper end sealing ring 25, and the edge of the spring baffle 21 is sealed with the top end of the spring sleeve 13 by the second spring compartment upper end sealing ring 26; the bottom end of the spring sleeve 13 is fixedly connected to the cabin shell 1 by the spring compartment lower fixing screws 29, and the spring sleeve 13 and the cabin shell 1 are sealed by the spring compartment lower end sealing ring 28.

[0052] The spring 12 is compressed by a water-soluble vinyl yarn 24 and secured within a sealed chamber comprising a spring sleeve 13, a pressure valve 14, a spring baffle 21, a spring upper pressure plate 22, a spring lower pressure plate 23, a first spring compartment upper seal 25, a second spring compartment upper seal 26, and a spring compartment lower seal 27. Adjusting the spring parameters of the pressure valve 14 can change the duration of the spring 12's retention in the underwater environment, thereby controlling the triggering time for the recovery device. The spring upper and lower pressure plates 22, 23 facilitate the winding of the water-soluble vinyl yarn 24, which winds around the outer side of the assembly formed by the spring upper and lower pressure plates 22, 23, and spring 12, limiting the spring 12's axial length to a fixed length.

[0053] After the water-soluble vinylon yarn 24 fails, the spring 12 exerts a force on the buoyancy box 6 through the spring baffle 21, accelerating the failure of the hydrosol between the buoyancy box 6 and the buoyancy box fixing ring 20, and then pushing the buoyancy box 6 out of the cabin under the force of the spring 12.

[0054] The first cable 10 is wrapped around the outer wall of the first cable sleeve 11, with the head connected to the buoyancy box 6 and the tail connected to the head of the second cable 15. When the thin cable 10 follows the buoyancy box 6 to the surface of the water, the first cable 10 is used to pull the second cable 15 out of the water, and finally the equipment is pulled out of the water.

[0055] The first cable 10 is a thin cable, and the second cable is a thick cable.

[0056] The present invention provides a passive delayed separation and depth-fixing recovery device for an underwater environment. The fixed depth triggering of a power device can be achieved by cooperating with a water-soluble material fixing spring and a closed chamber pressure valve, thereby achieving fixed depth recovery of underwater equipment. The present invention proposes a method for fixing the buoy by means of hydrosol and a buoy fixing ring. After the equipment enters the water, the hydrosol accelerates its failure under the action of the spring, and the buoy floats to the water surface for position indication and recovery. The present invention cleverly carries out structural design to form an internal sealing structure of the spring sleeve. At the same time, the controllability and reliability of the buoyancy of the buoy are improved by the arrangement of components such as baffles and pressure plates. The present invention controls the time for the buoy to leave the cabin by adjusting the content of hydrosol between the hatch cover and the hull and between the buoy and the spring sleeve, and controls the depth of the recovery device when the recovery is triggered by adjusting the spring parameters of the pressure valve.

[0057] The present invention has been described in detail above with reference to specific embodiments and exemplary examples. However, these descriptions should not be construed as limiting the present invention. Those skilled in the art will appreciate that various equivalent substitutions, modifications, or improvements may be made to the technical solutions and implementations of the present invention without departing from the spirit and scope of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0058] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A passive time-delayed passive separation and depth-fixed recovery device for underwater environments, characterized in that: include: A cabin shell (1), a cabin cover (3), a buoyancy box (6), a spring (12), a spring sleeve (13), a pressure valve (14), a water-soluble vinylon yarn (24) and a cable traction mechanism. The hatch cover (3) is connected to the hull (1) by means of a hydrosol, and the hatch cover (3) is located outside the top end of the buoyancy tank (6); The first end of the spring sleeve (13) is fixedly connected to the inner wall of the hull (1), the second end of the spring sleeve (13) is connected to the bottom end of the float tank (6) through a hydrosol, and the pressure valve (14) is arranged on the water inlet of the side wall of the spring sleeve (13); the spring (12) is installed in the spring sleeve (13), and in the initial state, the spring (12) is compressed by the water-soluble vinylon yarn (24); After the recovery device enters the water, water enters the hull (1) through the water inlet provided on the hatch cover (3). When the water depth reaches a preset depth, water enters the spring sleeve (13) through the pressure valve (14), the water-soluble vinylon yarn (24) fails, the spring (12) generates a thrust on the buoyancy box (6), and accelerates the failure of the hydrosol between the spring sleeve (13) and the buoyancy box (6). Then, the buoyancy box (6) pushes the hatch cover (3) under the thrust of the spring (12), and accelerates the failure of the hydrosol between the hatch cover (3) and the hull (1). Finally, the buoyancy box (6) pushes the hatch cover (3) out of the cabin; The buoyancy box (6) floats to the water surface under the action of positive buoyancy and is pulled out of the water by the cable pulling mechanism to pull the recovery device.

2. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1 is characterized in that: The hatch cover (3) is connected to the cabin shell (1) through a hatch cover fixing ring (4) and a hatch cover sealing ring (5); The hatch cover sealing ring (5) and the cabin shell (1) are connected by bolts, the hatch cover fixing ring (4) and the hatch cover sealing ring (5) are bonded by strong glue, and the hatch cover (3) and the hatch cover fixing ring (4) are bonded by water-soluble glue; The hatch cover fixing ring (4) is a transparent acrylic plate and is used to achieve light curing of the hydrosol.

3. The underwater environment passive time-delayed passive separation and depth-fixing recovery device according to claim 1 is characterized in that: The buoyancy tank (6) comprises a cylindrical portion at the bottom and a conical portion at the top; The buoyancy box (6), the spring sleeve (13) and the spring (12) are coaxially arranged.

4. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1 is characterized in that: The upper end and the lower end of the spring (12) are respectively welded with a spring upper pressure plate (22) and a spring lower pressure plate (23), the spring upper pressure plate (22) and the spring lower pressure plate (23) are perpendicular to the axis of the spring (12), and the water-soluble vinylon yarn (24) is wound around the inner and outer sides of the combination of the spring upper pressure plate (22), the spring lower pressure plate (23) and the spring (12), so that the spring (12) is in a compressed state; The spring baffle (21) is placed at the second end of the spring sleeve (13). In the initial state, the spring baffle (21) contacts the bottom end of the float (6). After the water-soluble vinylon yarn (24) fails, the spring (12) pushes the float (6) through the spring baffle (21).

5. The underwater environment passive time-delayed passive separation and depth-fixing recovery device according to claim 4 is characterized in that: The spring sleeve (13) forms an internal sealing structure through a first spring compartment upper end sealing ring (25), a second spring compartment upper end sealing ring (26), a spring compartment lower end sealing ring (28) and a spring baffle (21); The center of the spring baffle (21) is fixedly connected to the spring upper pressure plate (22) by bolts, the spring baffle (21) and the spring upper pressure plate (22) are sealed by a first spring compartment upper end sealing ring (25), and the edge of the spring baffle (21) is sealed with the second end of the spring sleeve (13) by a second spring compartment upper end sealing ring (26); The first end of the spring sleeve (13) is fixedly connected to the cabin shell (1) by means of bolts, and a spring cabin lower end sealing ring (28) is used to seal between the spring sleeve (13) and the cabin shell (1).

6. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1 is characterized in that: The bottom end of the buoyancy box (6) is connected to the second end of the spring sleeve (13) through a buoyancy box fixing ring (20); The buoyancy chamber fixing ring (20) and the second end of the spring sleeve (13) are connected by strong glue; The bottom end of the buoyancy box (6) is connected to the buoyancy box fixing ring (20) via a hydrosol; The buoyancy tank fixing ring (20) is a transparent acrylic plate.

7. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1 is characterized in that: It also includes a position indicating mechanism; The position indicating mechanism comprises a flashing position indicating light (7), a battery (8) and an elastic switch (9); A flashing position indicator light (7) is provided at the top of the float box (6), a spring switch (9) is provided at the bottom of the float box (6), and a battery (8) is used for power supply; The elastic switch (9) is turned on after the buoyancy box (6) leaves the cabin, causing the flashing position indicating light (7) to flash, thereby realizing the position indicating of the buoyancy box (6).

8. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1 is characterized in that: The cable pulling mechanism comprises a first cable (10), a first cable sleeve (11), a second cable (15), a second cable compartment (16) and an angular contact bearing (17); The first cable sleeve (11) is arranged on the outside of the buoyancy box (6), the first cable sleeve (11) is fixedly connected to the second end of the spring sleeve (13), the first cable (10) is evenly wound around the outside of the first cable sleeve (11), the head of the first cable (10) is connected to the buoyancy box (6), the tail of the first cable (10) is connected to the head of the second cable (15), the second cable (15) is evenly wound around the outside of the second cable compartment (16), and the second cable compartment (16) is fixedly connected to the hull (1) through an angular contact bearing (17).

9. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1, characterized in that: By adjusting the spring parameters of the pressure valve (14), the recovery triggering pressure value of the recovery device, that is, the recovery triggering water depth, is controlled.

10. The underwater environment passive time-delayed passive separation and depth-fixed recovery device according to claim 1, characterized in that: A recovery component is formed by combining a hatch cover (3), a buoyancy box (6), a spring (12), a spring sleeve (13), a pressure valve (14), a water-soluble vinylon yarn (24) and a cable traction mechanism. The recovery device includes two sets of recovery components, and the buoyancy boxes (6) in the two sets of recovery components are arranged in a 180-degree direction out of the cabin.

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