Passive time-delay passive positioning device suitable for underwater environment

Abstract

A passive time-delay passive positioning device suitable for an underwater environment comprises a cabin shell, an end cover, a cabin cover, a cabin cover fixing ring, a cabin cover sealing ring and a buoyancy tank positioning assembly. The cabin shell is of a cylindrical structure, the two ends of the cabin shell are closed through end covers, and two cabin openings are formed in the cabin shell and used for installing the cabin cover. The hatch cover fixing ring is fixedly installed at the hatch position and sealed through the hatch cover sealing ring, and the hatch cover is fixed to the hatch cover fixing ring through hydrosol. Two buoyancy tank positioning assemblies are mounted in an inner cabin of the cabin shell, and the two buoyancy tank positioning assemblies are placed at an angle of 180 degrees; when the passive time-delay passive positioning device enters water, a water-soluble fixing belt and a water-soluble vinylon yarn which play a fixing role in the buoyancy box positioning assembly lose efficacy, a buoyancy box in the buoyancy box positioning assembly ejects a hatch cover away from a hatch opening under the action of elastic power and then goes out of the hatch, a thin cable is pulled by positive buoyancy to float to the water surface, and then the passive time-delay passive positioning device is driven to move out of the hatch. And the underwater equipment is positioned through traction of the thin cable. The problems that a traditional positioning device is large in error and needs to be operated by professionals are solved.

Description

Technical Field

[0001] The invention belongs to the field of positioning and recovery, and in particular relates to a positioning device suitable for underwater environments. Background Art

[0002] Positioning device, English name Positioning device, refers to the equipment and mechanism used to determine the position, direction or posture of an object. Ground and air positioning mainly include satellite signals, inertial navigation, radar and other methods. Underwater positioning mainly includes underwater acoustic positioning, underwater sonar positioning, multi-beam tester and other methods. In the existing technology, especially due to the complex and changeable underwater environment, underwater high-precision positioning technology is relatively difficult.

[0003] Chinese patent CN110779518B is a method for single positioning of underwater vehicles with global convergence. It realizes single positioning of underwater vehicles by carrying hydrophones, Doppler sounders, depth gauges, attitude and heading reference systems, GPS and other equipment on underwater vehicles. However, this method has the disadvantages of requiring professional and expensive instruments and requiring professional personnel to operate.

[0004] Chinese patent CN110703187B is named as a method for acoustic positioning direction finding and positioning based on an underwater mobile platform, which realizes the positioning function through the underwater acoustic signals at different positions of the underwater mobile platform and its own inertial navigation information. However, this method has the disadvantages of requiring real-time tracking of position signals and poor security. Summary of the invention

[0005] The technical problem solved by the present invention is: providing a passive time-delay positioning device suitable for underwater environments, solving the problem that traditional positioning devices have large errors and require professional personnel to operate.

[0006] The technical solution of the present invention is:

[0007] A passive time-delay positioning device suitable for underwater environment, comprising: a cabin shell, an end cover, a hatch cover, a hatch cover fixing ring, a hatch cover sealing ring and a buoyancy tank positioning assembly;

[0008] The hull is a cylindrical structure, closed at both ends by end covers, with two hatches on the hull for installing hatch covers; the hatch cover fixing ring is fixedly installed at the hatch position and sealed by the hatch cover sealing ring, and the hatch cover is fixed by hydrosol and the hatch cover fixing ring;

[0009] Two pontoon positioning assemblies are installed in the inner cabin of the hull, and the two pontoon positioning assemblies are placed 180 degrees apart; when the passive delayed passive positioning device enters the water, the water-soluble fixing belt and water-soluble vinylon yarn that play a fixing role in the pontoon positioning assembly fail, and the pontoon in the pontoon positioning assembly pushes the hatch cover away from the hatch under the action of elastic power and exits the cabin, and uses the positive buoyancy to pull the thin cable to float to the water surface, and the underwater equipment is positioned by traction of the thin cable.

[0010] Furthermore, by adjusting the hydrosol bonding area between the hatch cover and the hatch cover fixing ring, the time for the hatch cover and the hatch cover fixing ring to automatically separate in an underwater environment can be changed.

[0011] Furthermore, the buoyancy tank positioning assembly includes a buoyancy tank, a flashing position indicator light, a battery, an elastic switch, a potting glue, a thin cable, a thin cable sleeve, a spring, and a spring sleeve;

[0012] The buoyancy box is arranged in the thin cable sleeve, and the bottom end of the buoyancy box is fixed to the top of the spring sleeve by water-soluble vinylon yarn and hydrosol; the bottom of the spring sleeve is fixedly installed in the inner compartment of the hull by bolts; the thin cable sleeve and the spring sleeve are fixedly connected by bolts; a spring is arranged in the spring sleeve, the bottom of the spring is fixed in the inner compartment of the hull by bolts, and the top of the spring is in contact with the buoyancy box; when not working, the spring is maintained in a compressed state by a water-soluble fixing belt;

[0013] A position indicator light is installed on the upper end of the pontoon, and a battery and an elastic switch are installed on the lower end. The battery is isolated from the water environment by potting glue. The elastic switch is automatically turned on after the pontoon is ejected from the hatch, causing the position indicator light on the upper end of the pontoon to flash, helping to indicate the position of the equipment.

[0014] The thin cable is wound around the outer wall of the thin cable sleeve, one end of the thin cable is connected to the buoyancy box, and the other end is connected to the end cover; when the thin cable floats to the surface with the buoyancy box, the thin cable is used to position the underwater equipment.

[0015] Furthermore, the hatch cover fixing ring and the hatch cover sealing ring are coaxially arranged; the buoyancy box, the thin cable sleeve, the spring and the spring sleeve are coaxially arranged.

[0016] Furthermore, after the passive positioning device enters the underwater environment, water enters the interior of the hull from the water inlet hole of the hatch cover. The water-soluble vinyl yarn fails when it comes into contact with water and loses its fixing effect on the buoyancy box. The water-soluble fixing belt fails when it comes into contact with water under the action of the spring force and then releases the spring force to push the buoyancy box axially to provide axial force to the hatch cover. At this time, the hydrosol between the hatch cover and the hatch cover fixing ring fails rapidly. When the hatch cover and the hatch cover fixing ring are separated, the buoyancy box is separated from the hull under the action of the spring force and positive buoyancy, and pulls the thin cable to float to the water surface.

[0017] Furthermore, the water-soluble fixing tape is made of water-soluble vinylon yarn and hydrosol.

[0018] Furthermore, the spring is fixed by water-soluble vinylon yarn and hydrosol, and the fixing time and fixing degree of the spring in the underwater environment can be changed by adjusting the usage of water-soluble vinylon yarn and hydrosol.

[0019] Furthermore, the top of the pontoon faces the hatch cover of the hatch.

[0020] The beneficial effects of the present invention compared with the prior art are:

[0021] (1) The present invention proposes to use water-soluble vinylon yarn and hydrosol to fix the buoyancy box to the spring sleeve. After the equipment enters the water, the water-soluble vinylon yarn and hydrosol become ineffective, and then the buoyancy box pops out of the hull under the action of the spring, thereby realizing passive delayed positioning suitable for underwater environment.

[0022] (2) The present invention proposes a solution in which an elastic power device is used to push a metal buoy to pull a cable, thereby realizing the passive delayed exit, buoyancy and cable delivery functions of the buoy, thereby realizing rapid positioning of underwater equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The passive time-delay passive positioning device of the present invention is schematically shown in FIG. Figure 1 ;

[0024] Figure 2 The passive time-delay passive positioning device of the present invention is schematically shown in FIG. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the connection between the passive time-delay passive positioning device buoy and the thin cable;

[0026] Figure 4 This is a schematic diagram of the passive time-delay passive positioning device buoyancy box leaving the cabin;

[0027] Figure 5 This is a schematic diagram of the positioning mechanism of the passive positioning device with passive delay. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0029] The present invention proposes to fix the buoyancy box to the spring sleeve by using water-soluble vinylon yarn and hydrosol. After the equipment enters the water, the water-soluble vinylon yarn and hydrosol fail, and then the buoyancy box pops out of the cabin shell under the action of the spring. At the same time, the present invention proposes a scheme that the elastic power device drives the metal buoyancy box to pull the cable, which can realize the passive delayed exit, floating and cable delivery functions of the buoyancy box, thereby realizing the rapid positioning of the underwater equipment.

[0030] like Figure 1 and Figure 2As shown, the present invention proposes a passive time-delay positioning device suitable for underwater environment, comprising: a hull 1, an end cover 2, a hatch cover 3, a hatch cover fixing ring 4, a hatch cover sealing ring 5 and a buoyancy tank positioning assembly;

[0031] The cabin shell 1 is a cylindrical structure, and both ends are closed by end covers 2. Two hatches are opened on the cabin shell 1 for installing hatch covers 3. The hatch cover fixing ring 4 is fixedly installed at the hatch position and sealed by the hatch cover sealing ring 5. The hatch cover 3 is fixed by hydrosol and the hatch cover fixing ring 4.

[0032] Two buoyancy positioning assemblies are installed in the inner cabin of the hull 1, and the two buoyancy positioning assemblies are placed 180 degrees apart; when the passive delayed passive positioning device enters the water, water enters the hull 1 from the water inlet hole set on the hatch cover 3, and the water-soluble fixing belt 15 and water-soluble vinylon yarn 16 in the buoyancy positioning assembly that play a fixing role fail. The buoys in the buoyancy positioning assembly push the hatch cover 3 away from the hatch and then go out of the cabin under the action of elastic power, and use the positive buoyancy to pull the thin cable to float to the water surface, and use the thin cable to pull to position the underwater equipment. The top of the buoyancy 6 faces the hatch cover 3 of the hatch.

[0033] By adjusting the hydrosol bonding area between the hatch cover 3 and the hatch cover fixing ring 4, the time for the hatch cover 3 to be automatically separated from the hatch cover fixing ring 4 in the underwater environment is changed.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the buoy positioning assembly includes a buoy 6, a flashing position indicator light 7, a battery 8, an elastic switch 9, a potting glue 10, a thin cable 11, a thin cable sleeve 12, a spring 13, and a spring sleeve 14;

[0035] The buoyancy box 6 is arranged in the thin cable sleeve 12, and the bottom end of the buoyancy box 6 is fixed to the top of the spring sleeve 14 by water-soluble vinyl yarn 16 and hydrosol; the bottom of the spring sleeve 14 is fixedly installed in the inner compartment of the hull 1 by bolts; the thin cable sleeve 12 and the spring sleeve 14 are fixedly connected by bolts; a spring 13 is arranged in the spring sleeve 12, and the bottom of the spring 13 is fixed in the inner compartment of the hull 1 by bolts, and the top of the spring 13 is in contact with the buoyancy box 6; when not working, the spring 13 is maintained in a compressed state by a water-soluble fixing belt 15;

[0036] A position indicator light 7 is installed at the upper end of the buoyancy box 6, and a battery 8 and an elastic switch 9 are installed at the lower end, wherein the battery 8 is isolated from the water environment by a potting glue 10, and the elastic switch 9 is automatically turned on after the buoyancy box 6 is ejected from the hatch, so that the position indicator light 7 at the upper end of the buoyancy box 6 flashes to help indicate the position of the equipment;

[0037] The thin cable 11 is wound around the outer wall of the thin cable sleeve 12, one end of the thin cable 11 is connected to the buoyancy box 6, and the other end is connected to the end cover 2; when the thin cable 11 follows the buoyancy box 6 to the surface of the water, the thin cable 11 is used to position the underwater equipment.

[0038] In the present invention, the hatch cover fixing ring 4 and the hatch cover sealing ring 5 are coaxially arranged; the buoyancy box 6, the thin cable sleeve 12, the spring 13, and the spring sleeve 14 are coaxially arranged.

[0039] like Figure 4 As shown, the working principle of the present invention is:

[0040] After the passive positioning device enters the underwater environment, water enters the interior of the hull 1 from the water inlet hole of the hatch cover 3. The water-soluble vinyl yarn 16 fails when it comes into contact with water and loses its fixing effect on the buoyancy box 6. The water-soluble fixing belt 15 fails when it comes into contact with water under the action of the spring elastic force, and then releases the spring force to push the buoyancy box 6 to axially displace and provide axial force to the hatch cover 3. At this time, the hydrosol between the hatch cover 3 and the hatch cover fixing ring 4 accelerates to fail. At the moment when the hatch cover 3 is separated from the hatch cover fixing ring 4, the buoyancy box 6 is separated from the hull 1 under the action of the spring 13 elastic force and positive buoyancy, and pulls the thin cable 11 to float to the water surface. Figure 5 shown.

[0041] Preferably, the water-soluble fixing tape 15 is made of water-soluble vinylon yarn and hydrosol.

[0042] Preferably, the spring 13 is fixed by water-soluble vinylon yarn and hydrosol, and the fixing time and fixing degree of the underwater environment spring 13 can be changed by adjusting the usage amount of water-soluble vinylon yarn and hydrosol.

[0043] The undisclosed technologies in the present invention are common knowledge to those skilled in the art.

Claims

1. A passive time-delay positioning device suitable for underwater environment, characterized in that include: It comprises a hull (1), an end cover (2), a hatch cover (3), a hatch cover fixing ring (4), a hatch cover sealing ring (5) and a buoyancy tank positioning assembly; The cabin shell (1) is a cylindrical structure, with both ends closed by end covers (2). Two hatches are opened on the cabin shell (1) for installing a hatch cover (3). A hatch cover fixing ring (4) is fixedly installed at the hatch position and sealed by a hatch cover sealing ring (5). The hatch cover (3) is fixed by a hydrosol and the hatch cover fixing ring (4). Two buoyancy positioning assemblies are installed in the inner cabin of the hull (1), and the two buoyancy positioning assemblies are placed 180 degrees apart; when the passive delayed positioning device enters the water, water enters the interior of the hull (1) from the water inlet hole provided on the hatch cover (3), and the water-soluble fixing belt (15) and the water-soluble vinylon yarn (16) in the buoyancy positioning assembly that play a fixing role fail. Under the action of elastic power, the buoy in the buoyancy positioning assembly pushes the hatch cover (3) away from the hatch and out of the cabin, and uses the positive buoyancy to pull the thin cable to float to the water surface, and the underwater equipment is positioned by pulling the thin cable.

2. A passive time-delay positioning device suitable for underwater environment according to claim 1, characterized in that: By adjusting the hydrosol bonding area between the hatch cover (3) and the hatch cover fixing ring (4), the time for the hatch cover (3) and the hatch cover fixing ring (4) to automatically separate in an underwater environment is changed.

3. The passive time-delay positioning device suitable for underwater environment according to claim 1, characterized in that: The buoyancy box positioning assembly comprises a buoyancy box (6), a flashing position indicator light (7), a battery (8), an elastic switch (9), a potting glue (10), a thin cable (11), a thin cable sleeve (12), a spring (13), and a spring sleeve (14); The buoyancy box (6) is arranged in the thin cable sleeve (12), and the bottom end of the buoyancy box (6) is fixed to the top of the spring sleeve (14) by means of water-soluble vinylon yarn (16) and hydrosol; the bottom of the spring sleeve (14) is fixedly installed in the inner compartment of the hull (1) by means of bolts; the thin cable sleeve (12) and the spring sleeve (14) are fixedly connected by means of bolts; a spring (13) is arranged in the spring sleeve (12), and the bottom of the spring (13) is fixed in the inner compartment of the hull (1) by means of bolts, and the top of the spring (13) is in contact with the buoyancy box (6); when not in operation, the spring (13) is maintained in a compressed state by means of a water-soluble fixing belt (15); A position indicator light (7) is installed at the upper end of the buoy (6), and a battery (8) and an elastic switch (9) are installed at the lower end, wherein the battery (8) is isolated from the water environment by a potting glue (10), and the elastic switch (9) is automatically turned on after the buoy (6) is ejected from the hatch, so that the position indicator light (7) at the upper end of the buoy (6) flashes to help indicate the position of the equipment; The thin cable (11) is wound around the outer wall of the thin cable sleeve (12), one end of the thin cable (11) is connected to the buoyancy box (6), and the other end is connected to the end cover (2); when the thin cable (11) follows the buoyancy box (6) to the surface of the water, the thin cable (11) is used to position the underwater equipment.

4. The passive time-delay positioning device suitable for underwater environment according to claim 3, characterized in that: The hatch cover fixing ring (4) and the hatch cover sealing ring (5) are coaxially arranged; the buoyancy box (6), the thin cable sleeve (12), the spring (13) and the spring sleeve (14) are coaxially arranged.

5. The passive time-delay positioning device suitable for underwater environment according to claim 3, characterized in that: After the passive positioning device enters the underwater environment, water enters the interior of the hull (1) from the water inlet hole of the hatch cover (3). The water-soluble vinyl yarn (16) fails when it comes into contact with water and loses its fixing effect on the buoyancy box (6). The water-soluble fixing belt (15) fails when it comes into contact with water under the action of the spring elastic force, and then releases the spring force to push the buoyancy box (6) axially to provide an axial force to the hatch cover (3). At this time, the hydrosol between the hatch cover (3) and the hatch cover fixing ring (4) accelerates to fail. At the moment when the hatch cover (3) and the hatch cover fixing ring (4) are separated, the buoyancy box (6) is separated from the hull (1) under the action of the spring (13) elastic force and positive buoyancy, and pulls the thin cable (11) to float to the water surface.

6. The passive time-delay positioning device suitable for underwater environment according to claim 3, characterized in that: The water-soluble fixing belt (15) is made of water-soluble vinylon yarn and hydrosol.

7. The passive time-delay positioning device suitable for underwater environment according to claim 3, characterized in that: The spring (13) is fixed by water-soluble vinylon yarn and hydrosol, and the fixing time and fixing degree of the underwater environment spring (13) can be changed by adjusting the usage amount of the water-soluble vinylon yarn and hydrosol.

8. The passive time-delay positioning device suitable for underwater environment according to claim 3, characterized in that: The top of the buoyancy box (6) faces the hatch cover (3) of the hatch.

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