1. A shallow sea self-floating acoustic release, comprising: comprises a main control unit (1), a floating body (2), a rope bin cylinder (3), a rope bin core cylinder (4), a mooring rope (5), a lifting ring (6) and a locking connecting cover (7); the main control unit (1) is arranged on the floating body (2), and the floating body (2) is arranged above the rope bin (3); the mooring rope (5) is uniformly coiled in the rope bin (3), one end of the mooring rope (5) is connected with the floating body (2), and the other end of the mooring rope is connected with a hanging ring (6) arranged on the locking connection cover (7); the locking connection cover (7) and the rope bin core barrel (4) are fixed below the rope bin barrel (3); the main control unit (1) locks the locking connection cover (7) through a release mechanism (12) arranged below the main control unit so as to integrate all components, and the lower end of the locking connection cover (7) is used for connecting a platform frame (25) of the marine instrument equipment;

the main control unit (1) comprises a control circuit board (8), a battery pack (9), an electronic cabin (10), a response transducer (11) and a release mechanism (12); the control circuit board (8) and the battery pack (9) are arranged in the electronic cabin (10), the control circuit board (8) is fixed on the shell of the response transducer (11), and the battery pack (9) is fixed on the back of the control circuit board (8); the response transducer (11) is arranged above the electronic cabin (10) and is sealed by a sealing ring; the release mechanism (12) is fixed below the electronic cabin (10) and sealed by a sealing ring.

2. The shallow sea self-floating acoustic release of claim 1, wherein: the mooring rope (5) adopts a high-strength Kevlar rope.

3. The shallow sea self-floating acoustic release of claim 1, wherein: release mechanism (12) are including driving motor (13), mounting bracket (14), shaft coupling (15), trapezoidal lead screw (16), screw nut (17), bearing (18), check lock (19), blind flange (20), lifting ring (21), globular ball (22), star sealing washer (23) and limit switch (24), driving motor (13) are fixed on blind flange (20) through mounting bracket (14), and driving motor (13) output shaft passes through shaft coupling (15) and is connected with trapezoidal lead screw (16), and trapezoidal lead screw (16) lower extreme installation bearing (18) are adorned in check lock (19), and check lock (19) are fixed on blind flange (20).

4. The shallow sea self-floating acoustic release of claim 3, wherein: the trapezoidal screw (16) is rotationally connected with a screw nut (17), and the screw nut (17) is fixed at the upper end of the lifting ring (21).

5. The shallow sea self-floating acoustic release of claim 3, wherein: spherical ball (22) inlay in the round hole of check lock lever (19) top, between check lock lever (19) and lift ring (21), can freely roll on the drive of lift ring (21), release mechanism (12) realize locking and release to locking connection lid (7) through control spherical ball (22) position.

6. The shallow sea self-floating acoustic release of claim 3, wherein: the limit switch (24) is used for limiting the movement space of the lifting ring (21), feeding back to the control circuit board (8) and controlling the driving motor (13) to operate.

7. The shallow sea self-floating acoustic release of claim 3, wherein: the star-shaped sealing ring (23) is used for moving and sealing between the flange cover (20) and the lifting ring (21) and between the lifting ring (21) and the locking rod (19).

8. A method of recovery using the shallow self-floating acoustic release of any of claims 1-7, wherein: the method comprises the following steps:

1) after receiving the acoustic signal released by the deck system, the response transducer (11) converts the acoustic signal into an electric signal;

2) the control circuit board (8) amplifies, filters and detects the signals, and the driving motor (13) is electrified after the signals are confirmed;

3) after the driving motor (13) is electrified, the trapezoidal lead screw (16) is driven to rotate, and a lead screw nut (17) arranged on the lifting ring (21) converts the rotary motion into the linear motion of the lifting ring (21) because the rotary freedom degree is restricted; along with the contraction of the lifting ring (21) into the electronic cabin (10), the spherical balls (22) partially embedded into the groove of the locking connection cover (7) move outwards along with the groove and enter the groove at the top end of the lifting ring (21), and at the moment, the spherical balls (22) lose the locking effect on the locking connection cover (7) to release the locking connection cover (7);

4) when the release mechanism (12) is separated from the locking connection cover (7), the main control unit (1) quickly floats upwards under the action of the large buoyancy of the floating body (2) and is separated from the rope bin cylinder (3), and the cable (5) buried in the rope bin cylinder (3) is also quickly pulled out along with the floating body (2) until the floating body (2) floats out of the water;

5) after finding the floating body (2), a water surface searcher salvages the floating body (2) to discharge water, fixes a mooring rope (5) connected with the floating body (2) in a ship-borne winch, slowly pulls the ocean instrument platform (25) frame to the water surface through the ship-borne winch, and completes the recovery of the platform system under the cooperation of ship-borne hoisting equipment.

Background

With the accelerated promotion of the national ocean strong strategy and the need of dealing with the ocean strategic resource game, the ocean engineering operation activities are increased rapidly, ocean environment monitoring systems, submerged buoy platform systems and other ocean instrument and equipment platforms which are distributed on the seabed are increased greatly, and the ocean instrument and equipment platforms can not be recycled without the application of the acoustic releaser, so that the market demand is huge.

The acoustic releaser is used as a compact high-reliability underwater acoustic system controlled by a microcontroller, and can communicate through a pair of response transducers to control the release mechanism so as to realize the recovery of marine equipment.

The floating ball is arranged in a mode of tying a cable rope connecting platform, the floating ball floats on the water surface for a long time, but the floating ball is very easy to be dragged by passing ships, the situations of cable rope breakage, position deviation of bottom-sitting marine instruments, equipment damage, data loss and the like can occur, even instrument equipment can not be recovered, the precision of detection equipment is influenced to a certain extent by the floating cable rope, and the floating cable rope is possibly recovered by other purposeful personnel, so that the instrument equipment, marine data and the like are lost, and great loss is caused.

Based on the problems, the self-floating acoustic releaser is applied, but the overall structure of the existing product generally adopts a split type arrangement design, so that the structure is complex, the size is overlarge, and even the measurement of marine instruments and equipment is influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a shallow sea self-floating acoustic releaser and a recovery method thereof, which mainly solve the problems that a floating arrangement mode is easily influenced by external factors in a shallow sea range, so that a bottomed marine instrument and equipment are damaged and lost, and the like, and the problems that the conventional self-floating releaser is complex in integral structure, overlarge in size and the like.

The object of the present invention is achieved by the following technical means. A shallow sea self-floating acoustic releaser comprises a main control unit, a floating body, a rope bin cylinder, a rope bin core cylinder, a cable, a lifting ring and a locking connection cover; the main control unit is arranged on the floating body, and the floating body is arranged above the rope bin; the cable is uniformly coiled in the rope bin, one end of the cable is connected with the floating body, and the other end of the cable is connected with a hanging ring arranged on the locking connecting cover; the locking connection cover and the rope bin core barrel are fixed below the rope bin barrel; the main control unit locks the locking connection cover through a release mechanism arranged below the main control unit, so that all components are integrated, and the lower end of the locking connection cover is used for connecting a platform frame of the marine instrument equipment;

the main control unit comprises a control circuit board, a battery pack, an electronic cabin, a response transducer and a release mechanism; the control circuit board and the battery pack are arranged in the electronic cabin, the control circuit board is fixed on the shell of the response transducer, and the battery pack is fixed on the back of the control circuit board; the response transducer is arranged above the electronic cabin and is sealed by a sealing ring; the releasing mechanism is fixed below the electronic cabin and sealed by a sealing ring.

Preferably, the cable is a high-strength Kevlar rope.

Furthermore, the releasing mechanism comprises a driving motor, an installation frame, a coupler, a trapezoidal lead screw, a lead screw nut, a bearing, a locking rod, a flange cover, a lifting ring, a spherical ball, a star-shaped sealing ring and a limit switch, wherein the driving motor is fixed on the flange cover through the installation frame, an output shaft of the driving motor is connected with the trapezoidal lead screw through the coupler, the bearing is installed at the lower end of the trapezoidal lead screw and is installed in the locking rod, and the locking rod is fixed on the flange cover. The trapezoidal lead screw is rotatably connected with the lead screw nut, and the lead screw nut is fixed at the upper end of the lifting ring. The spherical ball is embedded in the circular hole in the top of the locking rod and is arranged between the locking rod and the lifting ring, the spherical ball can freely roll under the driving of the lifting ring, and the release mechanism realizes the locking and releasing of the locking connection cover by controlling the position of the spherical ball. The limit switch is used for limiting the movement space of the lifting ring, feeding back the movement space to the control circuit board and controlling the operation of the driving motor. The star-shaped sealing ring is used for moving and sealing between the flange cover and the lifting ring and between the lifting ring and the locking rod.

The invention also provides a recovery method of the shallow sea self-floating acoustic releaser, which comprises the following steps:

1. after receiving the acoustic signal released by the deck system, the response transducer converts the acoustic signal into an electric signal;

2. the control circuit board amplifies, filters and detects the signals, and the driving motor is electrified after the signals are confirmed;

3. the driving motor drives the trapezoidal screw rod to rotate after being electrified, and the screw rod nut arranged on the lifting ring is restrained due to the rotational freedom degree, so that the rotational motion is converted into the linear motion of the lifting ring; with the shrinkage of the lifting ring into the electronic cabin, the spherical balls partially embedded into the grooves of the locking connection covers move outwards along with the lifting ring and enter the grooves at the top ends of the lifting ring, and the spherical balls lose the locking effect on the locking connection covers at the moment, so that the locking connection covers are released;

4. when the release mechanism is separated from the locking connection cover, the main control unit is separated from the rope bin cylinder to quickly float under the action of the large buoyancy of the floating body, and the cable rope buried in the rope bin cylinder is also quickly pulled out until the floating body floats out of the water surface;

5. after the water surface searching personnel find the floating body, the floating body is fished out, a mooring rope connected with the floating body is fixed on a ship-borne winch, the marine instrument platform frame is slowly pulled to the water surface through the ship-borne winch, and the recovery of the platform system is completed under the matching of ship-borne hoisting equipment.

Compared with the prior art, the invention has the advantages that:

1) the invention is suitable for the bottom-sitting type ocean instrument platform in the shallow sea range, can greatly reduce the interference of floating bodies, mooring ropes and the like on the work of platform measuring equipment, can also avoid the occurrence of the conditions of damage, loss and the like of the ocean instrument platform caused by external factors, and greatly improves the accuracy, safety and reliability of ocean data of various bottom-sitting type platforms;

2) the invention adopts an integrated design, has compact integral structure, integrates the floating body, the main control unit, the cable, the releasing mechanism and other components at high level, solves the problems of complex integral structure, overlarge volume and the like of the existing self-floating releaser, and simultaneously avoids the interference on the measurement of a platform marine instrument.

3) The novel design is carried out on the releasing mechanism, the locking and releasing are carried out in a piston type structure-lifting ring stretching mode, the structure is compact and reliable, the contraction and the releasing of the lifting ring can be assisted by the external seawater pressure, the starting torque of a driving motor during releasing is reduced, meanwhile, the influence of impurities such as sand and stones on the contraction and the releasing of the lifting ring is reduced, and the releasing reliability is improved.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the shallow sea self-floating acoustic releaser of the invention;

FIG. 2 is a cross-sectional view of the shallow sea self-floating acoustic release mechanism configuration of the present invention;

FIG. 3 is a layout view of the shallow sea self-floating acoustic releaser of the present invention;

fig. 4 is a view of the shallow sea self-floating acoustic release of the present invention.

In the figure: 1-main control unit, 2-body, 3-rope storehouse section of thick bamboo, 4-rope storehouse core section of thick bamboo, 5-hawser, 6-rings, 7-locking connection lid, 8-control circuit board, 9-group battery, 10-electronic cabin, 11-response transducer, 12-release mechanism, 13-driving motor, 14-mounting bracket, 15-shaft coupling, 16-trapezoidal lead screw, 17-lead screw nut, 18-bearing, 19-check lock pole, 20-flange cover, 21-lifting ring, 22-spherical ball, 23-star sealing washer, 24-limit switch, 25-platform frame.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

referring to fig. 1, the shallow sea self-floating acoustic releaser adopts an integrated structure design and comprises a main control unit 1, a floating body 2, a rope bin cylinder 3, a rope bin core cylinder 4, a cable 5, a lifting ring 6, a locking connection cover 7 and the like. In the scheme, a main control unit 1 is arranged on a floating body 2, and the floating body 2 is arranged above a rope bin 3; the mooring rope 5 adopts a high-strength Kevlar rope and is uniformly coiled in the rope bin 3, one end of the mooring rope 5 is connected with the floating body 2, and the other end of the mooring rope is connected with a hanging ring 6 arranged on the locking connecting cover 7; the locking connection cover 7 and the rope bin core barrel 4 are fixed below the rope bin barrel 3; the main control unit 1 locks the locking connection cover 7 through the release mechanism 12 installed therebelow, thereby integrating the components into a whole, and the lower end of the locking connection cover 7 can be connected with the marine instrument platform frame 25.

In the scheme, the main control unit 1 comprises a control circuit board 8, a battery pack 9, an electronic cabin 10, a response transducer 11 and a release mechanism 12; the control circuit board 8 and the battery pack 9 are arranged in the electronic cabin 10, the control circuit board 8 is fixed on the shell of the response transducer 11, and the battery pack 9 is fixed on the back of the control circuit board 8; the response transducer 11 is arranged above the electronic cabin 10 and is sealed by a sealing ring; the release mechanism 12 is fixed below the electronic cabin 10 and sealed by a sealing ring.

As shown in fig. 2, the release mechanism 12 is composed of a driving motor 13, a mounting frame 14, a coupler 15, a trapezoidal screw 16, a screw nut 17, a bearing 18, a locking rod 19, a flange cover 20, a lifting ring 21, a spherical ball 22, a star-shaped sealing ring 23, a limit switch 24, and the like; the driving motor 13 is fixed on the flange cover 20 through a mounting frame 14, an output shaft of the driving motor 13 is connected with a trapezoidal screw 16 through a coupler 15, a rolling bearing 18 is installed at the lower end of the trapezoidal screw 16 and is installed in a locking rod 19, and the locking rod 19 is fixed on the flange cover 20; the trapezoidal screw 16 is rotationally connected with a screw nut 17, and the screw nut 17 is fixed at the upper end of the lifting ring 21; the spherical ball 22 is embedded in a circular hole at the top of the locking rod 19 and is arranged between the locking rod 19 and the lifting ring 21, the spherical ball can freely roll under the driving of the lifting ring 21, and the release mechanism 12 realizes locking and releasing of the locking connecting cover 7 by controlling the position of the spherical ball 22; the star-shaped sealing ring 23 is used for sealing the movement between the flange cover 20 and the lifting ring 21 and between the lifting ring 21 and the locking rod 19; the limit switch 24 can limit the movement space of the lifting ring 21 and feed back the movement space to the control circuit board 8 to control the operation of the motor.

The working principle and the distribution and recovery method of the shallow sea self-floating acoustic releaser comprise the following steps:

1) when the marine instrument platform system is arranged, in order to avoid interference on marine instruments, a shallow sea self-floating acoustic releaser is generally arranged on one side of the platform system, the acoustic releaser locking connection cover 7 is fixedly connected with a platform frame 25, and the release mechanism 12 is in a locking state;

2) when the platform marine instrument equipment is arranged and passes the detection, the shallow-sea self-floating acoustic releaser sinks into the seabed along with the platform system to complete the arrangement of the sitting bottom, as shown in fig. 3;

3) when the marine instrument platform works for a period of time and needs to be recovered, the deck system sends a wake-up signal to the self-floating acoustic response-releasing transducer 11;

4) after the self-floating acoustic releaser confirms that the signal is awakened, feeding back a signal to the deck unit;

5) after the deck system confirms the signal, a release signal is sent to the self-floating acoustic release response transducer 11, the acoustic signal of the response transducer 11 is converted into an electric signal and is input into the control circuit board 8, and the control circuit board 8 amplifies, filters and detects the signal and then powers on the driving motor 13 of the release mechanism 12;

6) after the driving motor 13 is powered on, the trapezoidal lead screw 16 is driven to rotate, and the lead screw nut 17 arranged on the lifting ring 21 is restricted due to the rotational freedom degree, so that the rotational motion of the lead screw nut 17 is converted into linear motion, the lifting ring 21 is driven to shrink into the electronic cabin 10, the spherical ball 22 partially embedded into the groove of the locking connection cover 7 rolls into the groove at the top end of the lifting ring 21 outwards along with the linear motion, and at the moment, the spherical ball 22 loses the locking effect on the locking connection cover 7, and the release is completed;

7) after the main control unit 1 releases the locking connection cover 7, the main control unit 1 quickly floats under the action of the large buoyancy of the floating body 2, and the cable 5 with one end fixed on the floating body 2 is also quickly drawn out of the rope bin 3 until the floating body 2 floats out of the water surface, as shown in fig. 4;

8) after finding the floating body 2, a water surface searcher salvages the floating body 2, fixes the mooring rope 5 connected with the floating body 2 in a ship-borne winch, slowly pulls the ocean instrument platform out of the water surface through the ship-borne winch, and completes the recovery of the platform system under the cooperation of ship-borne hoisting equipment.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.