Attitude self-correcting marine release device and method

Abstract

The application discloses a posture self-correcting formal marine release device and method, and belongs to the technical field of marine geological exploration.The posture self-correcting formal marine release device comprises a release mechanism and a sounding mechanism.The release mechanism comprises a balance assembly, a release assembly and a limiting assembly.The balance assembly comprises a gyro rotor.The release assembly comprises a reel, a coil spring and a brake assembly.A second cable is wound on the reel.The brake assembly can be switched between a brake state and a release state.The limiting assembly comprises a limiting shell and a limiting block.The second cable is arranged in the limiting shell and connected with the limiting block.The limiting block can be clamped into the limiting shell.The sounding mechanism comprises a pressure-resistant cabin, a counterweight assembly, a sounding rod and a probe which are connected in sequence.The posture self-correcting formal marine release method adopts the posture self-correcting formal marine release device, ensures vertical falling and penetration into seabed sediments, realizes release and recovery of the second cable and improves test efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of marine geology exploration, and particularly relates to a posture self-correcting marine release device and method. BACKGROUND

[0002] With the accelerated development of marine engineering construction, the self-falling sounding technology is widely used in the field of marine geology exploration. The working principle of the technology is that a sounding assembly is released at a certain height by a release device, and the sounding assembly vertically penetrates into the sediment at a certain speed by relying on its own gravity, so as to measure the strength parameters of the seabed shallow sediment, such as the cone tip resistance, the side friction resistance and the pore water pressure.

[0003] In order to accurately measure the strength parameters of the seabed shallow sediment, the sounding assembly needs to fall vertically and penetrate into the seabed sediment during the free falling process. However, the sounding assembly is prone to tilting under the influence of sea waves during the marine operation, and it is difficult to achieve vertical falling and penetration. Generally, a three-axis sensor is arranged on the sounding assembly, so as to obtain the tilting angle of the sounding assembly. If the tilting angle of the sounding assembly does not exceed a set value, it is judged that the measured strength parameters of the seabed shallow sediment are valid. If the tilting angle of the sounding assembly exceeds the set value, it is judged that the measured strength parameters of the seabed shallow sediment are invalid, and the sounding needs to be re-performed. The tilting of the sounding assembly leads to inaccurate data measured by the sounding assembly, and the repeated sounding increases the cost. SUMMARY

[0004] The present application aims to provide a posture self-correcting marine release device and method, so as to solve the technical problem that the sounding assembly is prone to tilting under the influence of sea waves during the marine operation, and it is difficult to achieve vertical falling and penetration in the prior art.

[0005] According to the above idea, the technical scheme adopted by the present application is as follows:

[0006] The posture self-correcting marine release device comprises a release mechanism and a sounding mechanism, and the release mechanism comprises:

[0007] A balance assembly comprising a first housing and a gyro rotor arranged in the first housing, and the top of the first housing is capable of being connected to a first cable of a ship winch;

[0008] A release assembly comprising a second housing, a reel, a coil spring and a brake assembly arranged in the second housing, the second housing is arranged at the bottom of the first housing, the reel is wound with a second cable, the brake assembly is capable of being switched between a brake state and a release state, the brake assembly in the brake state brakes the reel, the brake assembly in the release state releases the brake of the reel, one end of the coil spring is connected to the reel, and the other end of the coil spring is fixedly connected to the second housing.

[0009] The limiting assembly comprises a limiting shell and a limiting block, the limiting shell is arranged at the bottom of the second shell, the second cable is arranged in the limiting shell and connected with the limiting block, and the limiting block can be clamped into the limiting shell;

[0010] The probe mechanism comprises a pressure-resistant cabin, a counterweight assembly, a probe rod and a probe head connected in sequence, the pressure-resistant cabin is connected with the limiting block, a pressure sensor is arranged on the pressure-resistant cabin, an identification assembly is arranged on the probe head, the identification assembly comprises a light source emitter and a light source collector arranged at intervals along the axial direction of the probe head, and the light source collector can receive the signal of the light source emitter to identify the water-soil interface.

[0011] As preferred, the inside of the reel is provided with a threading cavity, the threading cavity comprises a first section extending along the axial direction of the reel and a second section extending along the radial direction of the reel, the first section is provided with a waterproof electric slip ring away from one end of the second section, the reel is provided with a threading hole communicating with the second section at the position where the second cable is wound, the inside of the second cable is hollow and arranged with a transmission line, and the transmission line is electrically connected with the waterproof electric slip ring through the threading hole and the threading cavity.

[0012] As preferred, the release mechanism further comprises a support structure, the support structure is fixedly connected with the second shell, the reel is rotationally arranged on the support structure, the waterproof electric slip ring is fixedly arranged on the support structure, the support structure has a first mounting cavity, and the coil spring is arranged in the first mounting cavity.

[0013] As preferred, the inside of the reel is further provided with a silicone oil cavity isolated from the threading cavity, the silicone oil cavity communicates with the first mounting cavity and is filled with silicone oil inside; the inside of the reel is further provided with a second mounting cavity communicating with the silicone oil cavity, a rubber barrel is arranged in the second mounting cavity, one end of the rubber barrel communicates with the outside to enable seawater to enter the rubber barrel and press the silicone oil in the silicone oil cavity.

[0014] As preferred, the reel is provided with two coil springs, the two coil springs are distributed on both sides of the reel, and the two first mounting cavities both communicate with the silicone oil cavity.

[0015] As preferred, the middle part of the reel is formed with an adapter block in the silicone oil cavity, the second section is arranged in the adapter block, and the adapter block is provided with a communication hole communicating the silicone oil cavities on both sides.

[0016] As preferred, the brake assembly comprises a ratchet wheel and a ratchet piece, the ratchet piece being capable of moving along a first straight line to press against or release the ratchet wheel, the ratchet wheel being capable of rotating in a forward direction or a reverse direction when released, the ratchet wheel being unidirectionally locked when pressed against, and the reel being capable of driving the ratchet wheel to rotate.

[0017] As preferred, the ratchet wheel is arranged on a ratchet wheel shaft, the ratchet wheel shaft being rotationally connected with the second shell, a first gear being arranged on the ratchet wheel shaft, and a second gear being arranged on the reel, the first gear being engaged with the second gear.

[0018] As preferred, the limiting shell has a limiting cavity with an opening downward, the limiting cavity being in the shape of a truncated cone, the limiting block comprising a limiting part and a connecting part, the limiting part being in the shape of a truncated cone and being connected with the second cable, and the connecting part being connected with the pressure-resistant cabin.

[0019] A posture self-correcting formal sea release method, using the posture self-correcting formal sea release device as described above, comprising:

[0020] In an initial state, the brake assembly is in a braking state, so that the reel is braked and does not rotate, the limiting block is clamped into the limiting shell, and the second cable is wound on the reel;

[0021] The first cable is uniformly released by the marine winch, so that the release mechanism and the touch mechanism are synchronously lowered;

[0022] When the pressure value detected by the pressure sensor is greater than or equal to a first set pressure value, it is determined that the touch mechanism enters the seawater, and the control assembly in the pressure-resistant cabin controls the gyro rotor to rotate around its own axis at a set speed;

[0023] The first cable is continuously released, and if the light source collector does not receive a light signal, it is determined that the touch mechanism reaches the water-soil interface, the control assembly controls the brake assembly to switch to a release state, the reel rotates around its own axis under the weight of the touch mechanism, the second cable on the reel is released, the limiting block is separated from the limiting shell, and the coil spring stores elastic potential energy;

[0024] As the first cable continues to be released, when the downward penetration speed of the touch mechanism is less than the release speed of the first cable, the elastic potential energy of the coil spring is released to drive the reel to rotate to recover the second cable until the limiting block is clamped into the limiting shell;

[0025] When the pressure value detected by the pressure sensor remains unchanged within a first preset time period, the control assembly controls the brake assembly to switch to a braking state;

[0026] When the first cable is in a relaxed state and remains in the relaxed state within a second set time period, the first cable is recovered by the marine winch, and the release mechanism and the touch mechanism are synchronously moved upward to be recovered.

[0027] The beneficial effects of the present application are as follows:

[0028] The attitude self-correcting formal marine release device provided by the present application is characterized in that: the gyro rotor of the balance assembly is used to make the center of gravity of the whole device located on the central axis through the angular momentum generated by the high-speed rotation of the gyro rotor, so as to realize the automatic correction of the attitude of the whole device, ensure the vertical falling and penetration into the seabed sediments, and ensure the consistency of the penetration depth and the strength characteristic parameters of the sediments; the brake assembly is used to switch between the braking state and the release state, and is matched with the coil spring to realize the release and recovery of the second cable, thereby improving the test efficiency; the limiting assembly is arranged, the second cable is arranged in the limiting shell and connected with the limiting block, the limiting block can be clamped into the limiting shell, the pressure-resistant cabin of the sounding mechanism is connected with the limiting block, and the limiting shell and the limiting block are matched to limit the sounding mechanism, so that the shaking of the sounding mechanism is avoided, and the sounding mechanism is more stable.

[0029] The attitude self-correcting formal marine release method provided by the present application is characterized in that: when the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, it is judged that the sounding mechanism has entered the seawater, the control assembly in the pressure-resistant cabin is used to control the gyro rotor to rotate around the axis thereof at a set speed, so as to ensure the vertical falling; if the light source collector does not receive the light signal, it is judged that the sounding mechanism has reached the water-soil interface, the control assembly is used to control the brake assembly to switch to the release state, so as to realize the automatic release of the second cable; as the first cable continues to be released, when the downward penetration speed of the sounding mechanism is less than the release speed of the first cable, the elastic potential energy of the coil spring is released to drive the reel to rotate and recover the second cable, until the limiting block is clamped into the limiting shell, so as to realize the automatic recovery of the second cable; when the pressure value detected by the pressure sensor remains unchanged within the first preset time length, it is indicated that the penetration is completed, and the control assembly is used to control the brake assembly to switch to the braking state; when the first cable is in the relaxed state and remains in the relaxed state within the first set time length, the first cable is recovered by the marine winch, and the release mechanism and the sounding mechanism are synchronously moved upward to be recovered. The time is greatly saved, the work efficiency and the operation safety are improved, and the consistency and accuracy of the measurement data are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of the attitude self-correcting formal marine release device provided by the present embodiment;

[0031] Figure 2 is a first schematic diagram of part of the structure of the attitude self-correcting formal marine release device provided by the present embodiment;

[0032] Figure 3 is a first sectional view of part of the structure of the attitude self-correcting formal marine release device provided by the present embodiment;

[0033] Figure 4is a second sectional view of a part structure of the posture self-correcting marine release device provided in the embodiment;

[0034] Figure 5 is a second schematic view of a part structure of the posture self-correcting marine release device provided in the embodiment.

[0035] in the figure:

[0036] 100, first cable;

[0037] 10, release mechanism; 11, balance assembly; 111, first housing; 112, gyro rotor; 113, motor; 114, rotor housing; 115, ear; 12, release assembly; 121, second housing; 122, reel; 1221, threading cavity; 1222, threading hole; 1223, silicone oil cavity; 1224, second mounting cavity; 1225, adapter block; 123, coil spring; 124, brake assembly; 1241, ratchet wheel; 1242, ratchet piece; 1243, ratchet wheel shaft; 1244, first gear; 1245, second gear; 1246, electromagnetic rod; 125, second cable; 13, limiting assembly; 131, limiting shell; 132, limiting block; 1321, limiting part; 1322, connecting part; 14, waterproof electric slip ring; 15, support structure; 151, first mounting cavity; 152, fixed seat; 153, support block; 154, protection shell; 16, rubber barrel;

[0038] 20, feeler mechanism; 21, pressure-resistant cabin; 22, counterweight assembly; 23, feeler rod; 24, feeler head. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0040] In the description of the present application, unless explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] See Figures 1 to 5 This invention provides an attitude self-correcting marine release device, including a release mechanism 10 and a probe mechanism 20. The release mechanism 10 includes a balancing component 11, a release component 12, and a limiting component 13. The balancing component 11 includes a first housing 111 and a gyroscope rotor 112 disposed within the first housing 111. The top of the first housing 111 can be connected to a first cable 100 of a marine winch. The release component 12 includes a second housing 121 and a reel 122, a coil spring 123, and a braking component 124 disposed within the second housing 121. The second housing 121 is disposed at the bottom of the first housing 111. A second cable 125 is wound on the reel 122. The braking component 124 can switch between a braking state and a release state. In the braking state, the braking component 124 brakes the reel 122; in the release state, the braking component 124... 124 releases the brake on reel 122. One end of coil spring 123 is connected to reel 122, and the other end of coil spring 123 is fixedly connected to second housing 121. Limiting assembly 13 includes limiting shell 131 and limiting block 132. Limiting shell 131 is located at the bottom of second housing 121. Second cable 125 passes through limiting shell 131 and is connected to limiting block 132. Limiting block 132 can be inserted into limiting shell 131. Probing mechanism 20 includes a pressure chamber 21, counterweight assembly 22, probe rod 23, and probe 24 connected in sequence. Pressure chamber 21 is connected to limiting block 132. Pressure sensor is provided on pressure chamber 21. Identification assembly is provided on probe 24. Identification assembly includes light source emitter and light source collector arranged at intervals along the axial direction of probe 24. Light source collector can receive signal from light source emitter to identify water-soil interface.

[0044] The gyro rotor 112 of the balance assembly 11 makes the center of gravity of the device as a whole located on the central axis by the angular momentum generated by its high-speed rotation, realizes automatic correction of the attitude of the device as a whole, ensures vertical falling and penetration into seabed sediments, and thus ensures consistency of the penetration depth and the strength characteristic parameters of the sediments; the brake assembly 124 is switched between the braking state and the releasing state, cooperates with the coil spring 123, realizes release and recovery of the second cable 125, and improves the test efficiency; the second cable 125 is arranged in the limiting shell 131 and connected with the limiting block 132, the limiting block 132 can be clamped into the limiting shell 131, the pressure-resistant cabin 21 of the sounding mechanism 20 is connected with the limiting block 132, and the limiting shell 131 cooperates with the limiting block 132 to realize limiting of the sounding mechanism 20, so that the sounding mechanism 20 is prevented from shaking and is more stable.

[0045] In use, in the initial state, the brake assembly 124 is in the braking state, so that the reel 122 is braked and does not rotate, the limiting block 132 is clamped into the limiting shell 131, and the second cable 125 is arranged on the reel 122; the first cable 100 is released at a constant speed by the marine winch, so that the release mechanism 10 and the sounding mechanism 20 are lowered synchronously; when the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, it is judged that the sounding mechanism 20 enters seawater, the control assembly in the pressure-resistant cabin 21 controls the gyro rotor 112 to rotate around its axis at a set speed; the first cable 100 is continuously released, if the light source collector does not receive a light signal, it is judged that the sounding mechanism 20 reaches the water-soil interface, the control assembly controls the brake assembly 124 to switch to the releasing state, under the action of the weight of the sounding mechanism 20, the reel 122 rotates around its axis, the second cable 125 on the reel 122 is released, the limiting block 132 is separated from the limiting shell 131, and the coil spring 123 stores elastic potential energy; as the first cable 100 is continuously released, when the downward penetration speed of the sounding mechanism 20 is less than the release speed of the first cable 100, the elastic potential energy of the coil spring 123 is released to drive the reel 122 to rotate and recover the second cable 125, until the limiting block 132 is clamped into the limiting shell 131; when the pressure value detected by the pressure sensor remains unchanged within the first preset time length, the control assembly controls the brake assembly 124 to switch to the braking state; when the first cable 100 is in a relaxed state and remains in the relaxed state within the first set time length, the first cable 100 is recovered by the marine winch, and the release mechanism 10 and the sounding mechanism 20 are synchronously lifted to be recovered.

[0046] After the brake assembly 124 is switched to the releasing state, although the marine winch continues to release the first cable 100, due to the weight of the sounding mechanism 20, the falling speed of the sounding mechanism 20 is large, and the speed difference between the sounding mechanism 20 and the first cable 100 makes the reel 122 rotate around its axis, and the second cable 125 on the reel 122 is released.

[0047] The winch for the ship is a prior art, which comprises a drum and a driving mechanism for driving the drum to rotate, and the first cable 100 is wound on the drum, and the drum is driven to rotate forward or reversely by the driving mechanism to release or recover the first cable 100.

[0048] The gyro rotor 112 is cylindrical to ensure uniform mass distribution. The axis of the gyro rotor 112 coincides with the central axis of the device as a whole. The gyro rotor 112 can be made of existing materials, such as metal or composite materials. The gyro rotor 112 can be driven by an existing motor 113, which is arranged in the first shell 111 and electrically connected with the control assembly. The control assembly can receive the signal of the pressure sensor, and when the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, it is judged that the feeler mechanism 20 enters the seawater, and the control assembly in the pressure hull 21 controls the motor 113 to start to make the gyro rotor 112 rotate around its axis at a set speed. The size of the set speed can be set according to actual needs, which is not limited here.

[0049] The gyro rotor 112 is provided with a rotor shell 114, and the motor 113 is arranged outside the rotor shell 114. The rotor shell 114 can protect the gyro rotor 112 from being affected by the cable during high-speed rotation.

[0050] The top of the first shell 111 is provided with a lug 115 for conveniently connecting the first cable 100. Specifically, the lug 115 is provided with two lugs spaced from each other, and mounting holes are formed in the lug 115 for fixing a mounting shaft, and the first cable 100 is fixed to the mounting shaft by passing around the mounting shaft.

[0051] The first shell 111 and the second shell 121 can be connected by threads and a sealing ring is arranged therebetween, which is convenient for installation and disassembly and has a sealing effect. Specifically, the bottom of the first shell 111 is opened and provided with external threads, the top of the second shell 121 is slotted and provided with internal threads, and the sealing ring is sleeved on the first shell 111, and the external threads are connected with the internal threads.

[0052] The first shell 111 is cylindrical in shape, and the second shell 121 is cuboid in shape, and other shapes can be set according to needs.

[0053] The limiting shell 131 can be connected with the second shell 121 by threads. The limiting shell 131 has a limiting cavity with an opening downward, and the limiting cavity is conical frustum-shaped. The limiting block 132 comprises a limiting part 1321 and a connecting part 1322. The limiting part 1321 is conical frustum-shaped and connected with the second cable 125, and the connecting part 1322 is connected with the pressure hull 21. The conical frustum-shaped structure plays a guiding role, which facilitates the insertion of the limiting block 132 into the limiting shell 131. Specifically, the limiting block 132 is provided with a lock catch, and the second cable 125 is connected with the lock catch.

[0054] In the embodiment, the brake assembly 124 brakes the reel 122 in one direction, and after the brake, the reel spring 123 can drive the reel 122 to rotate in one direction, but cannot rotate in the opposite direction.

[0055] Specifically, the brake assembly 124 includes a ratchet wheel 1241 and a ratchet piece 1242, the ratchet piece 1242 can move along a first straight line to abut or release the ratchet wheel 1241, the ratchet wheel 1241 can rotate in a forward direction or a reverse direction when released, the ratchet wheel 1241 is locked in one direction when abutted, and the reel 122 can drive the ratchet wheel 1241 to rotate.

[0056] In the process of releasing the second cable 125 on the reel 122, the reel 122 drives the ratchet wheel 1241 to rotate in a forward direction, and the reel spring 123 connected with the reel 122 stores elastic potential energy; when the elastic potential energy of the reel spring 123 is released, the reel 122 drives the ratchet wheel 1241 to rotate in a reverse direction, and the second cable 125 is recovered to the reel 122; even if the ratchet wheel 1241 is locked in one direction, the reel 122 can still drive the ratchet wheel 1241 to rotate in a reverse direction under the action of the reel spring 123.

[0057] In the embodiment, the ratchet wheel 1241 is arranged on the ratchet shaft 1243, the ratchet shaft 1243 is rotationally connected with the second housing 121, the first gear 1244 is arranged on the ratchet shaft 1243, and the second gear 1245 is arranged on the reel 122, and the first gear 1244 is engaged with the second gear 1245.

[0058] Specifically, the ratchet shaft 1243 is connected with the second housing 121 through a brake bearing. The first gear 1244 and the second gear 1245 are both provided with two gears to improve stability. The ratchet wheel 1241 is located between the two first gears 1244.

[0059] The ratchet piece 1242 is an arc-shaped piece, and a locking groove is arranged on one side surface of the ratchet piece 1242, and the ratchet teeth of the ratchet wheel 1241 can be inserted into the locking groove. When the ratchet piece 1242 abuts against the ratchet wheel 1241, the ratchet teeth of the ratchet wheel 1241 are inserted into the locking groove, and when the ratchet piece 1242 releases the ratchet wheel 1241, the ratchet teeth of the ratchet wheel 1241 are separated from the locking groove.

[0060] The ratchet 1242 can adopt an existing driving mechanism, such as a pneumatic cylinder, a hydraulic cylinder or a linear motor. Exemplarily, the brake assembly 124 further comprises an electromagnetic rod 1246, a rod body of the electromagnetic rod 1246 being connected with the ratchet 1242, and the electromagnetic rod 1246 controlling the movement of the ratchet 1242 by being powered on and powered off. The electromagnet in the electromagnetic rod 1246 is a device that generates electromagnetism by being powered on. By winding a conductive winding outside the core and matching its power, such a coil with current has magnetism like a magnet, called an electromagnet. The electromagnet has magnetism when powered on, and the magnetism disappears after being powered off. Through the magnetism of the electromagnet, the rod body can be attracted to make the ratchet 1242 remain in the braking state of engagement with the ratchet wheel 1241, and after being powered off, the rod body is reset under the action of the spring to make the ratchet 1242 disengage from the ratchet wheel 1241.

[0061] The pressure-resistant cabin 21 is provided with a battery for supplying power to the electromagnetic rod 1246, the pressure sensor, the motor 113, the identification assembly and the like.

[0062] The inside of the reel 122 is provided with a threading cavity 1221, the threading cavity 1221 comprising a first section extending along the axial direction of the reel 122 and a second section extending along the radial direction of the reel 122, the first section being provided with a waterproof electric slip ring 14 at an end away from the second section, and the reel 122 being provided with a threading hole 1222 in communication with the second section at a position where the second cable 125 is wound, the inside of the second cable 125 being hollow and provided with a transmission line, the transmission line being electrically connected with the waterproof electric slip ring 14 by passing through the threading hole 1222 and the threading cavity 1221. The second cable 125 is not a conventional solid steel wire rope, but is provided with a transmission line in the inside for signal or data transmission. One end of the transmission line is electrically connected with the waterproof electric slip ring 14, and the other end of the transmission line is electrically connected with a control assembly in the pressure-resistant cabin 21.

[0063] Specifically, the second cable 125 is wound on the reel 122 to form a cable loop, one end of the second cable 125 passes through the threading hole 1222 and the threading cavity 1221 so as to connect the transmission line with the waterproof electric slip ring 14, and the other end of the second cable 125 is connected with the limiting block 132, since the pressure-resistant cabin 21 is connected with the limiting block 132 so as to electrically connect the transmission line with the control assembly. The motor 113 and the electromagnetic rod 1246 are both electrically connected with the waterproof electric slip ring 14. The waterproof electric slip ring 14 can connect two ends of the cable and transmit signals. When the reel 122 rotates, the transmission line slides along the waterproof electric slip ring 14, without affecting the signal transmission.

[0064] The releasing mechanism 10 further comprises a support structure 15 fixedly connected with the second shell 121, the reel 122 is rotationally arranged on the support structure 15, the waterproof electric slip ring 14 is fixedly arranged on the support structure 15, the support structure 15 has a first mounting cavity 151, and the coil spring 123 is arranged in the first mounting cavity 151. The support structure 15 supports the reel 122, and the reel 122 and the support structure 15 can be connected by a bearing.

[0065] The inside of the reel 122 is further provided with a silicone oil cavity 1223 isolated from the threading cavity 1221, the silicone oil cavity 1223 is in communication with the first mounting cavity 151 and is filled with silicone oil, and the inside of the reel 122 is further provided with a second mounting cavity 1224 in communication with the silicone oil cavity 1223, the second mounting cavity 1224 is provided with the rubber barrel 16, one end of the rubber barrel 16 is in communication with the outside so that seawater can enter the rubber barrel 16 and press the silicone oil in the silicone oil cavity 1223.

[0066] When working in seawater, the seawater pressure acts on the rubber barrel 16, and since the rubber barrel 16 is elastic, it can be elastically deformed to ensure that the pressure inside and outside the silicone oil cavity 1223 is balanced, preventing the internal and external pressure difference of the first mounting cavity 151 from affecting the movement of the coil spring 123.

[0067] In this embodiment, the coil spring 123 is provided with two, and the two coil springs 123 are distributed on both sides of the reel 122. The coil spring 123 is of a prior structure, and its working principle is a prior art, which will not be described here. Both the first mounting cavities 151 are in communication with the silicone oil cavity 1223.

[0068] Specifically, the middle part of the reel 122 forms an adapter block 1225 in the silicone oil cavity 1223, the second section of the threading cavity 1221 is arranged on the adapter block 1225, and the adapter block 1225 is provided with a communication hole in communication with the silicone oil cavities 1223 on both sides.

[0069] The support structure 15 comprises a fixed seat 152, a support block 153 and a protective shell 154, the fixed seat 152 is fixedly connected with the second shell 121, the support block 153 is arranged on the fixed seat 152, the reel 122 is rotationally connected with the support block 153, the protective shell 154 is arranged on the outer periphery of the support block 153, and the coil spring 123 is arranged in the protective shell 154.

[0070] For the touch mechanism 20, the counterweight assembly 22 comprises a counterweight block and a counterweight rod, one end of the counterweight rod is connected with the pressure-resistant cabin 21, the other end of the counterweight rod is connected with the probe rod 23, and the counterweight block is sleeved outside the counterweight rod.

[0071] The pressure-resistant cabin 21 and the limiting block 132, the counterweight rod and the pressure-resistant cabin 21, the counterweight rod and the probe rod 23, and the probe rod 23 and the probe head 24 can be connected by threads.

[0072] The release mechanism 10 and the penetration mechanism 20 are in signal transmission through a transmission line, and the release mechanism 10 and the penetration mechanism 20 can share a switch on the penetration mechanism 20. Before being released through the first cable 100, the switch is opened, so that the release mechanism 10 and the penetration mechanism 20 are both powered on and work. The control assembly can receive the signals of the pressure sensor and the identification assembly in real time and make corresponding judgments. The control assembly can receive the signal fed back by the pressure sensor. When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, the pressure sensor feeds back the first signal to the control assembly. The control assembly can receive the signal fed back by the light source collector. When the light source collector does not receive the light signal, the light source collector feeds back the second signal to the control assembly. The control assembly controls the electromagnetic rod 1246 to be powered off only when the first signal is obtained and the second signal is obtained, so that the ratchet 1242 is away from the ratchet wheel 1241. The structure and working principle of the control assembly are prior art, and will not be described here.

[0073] In the penetration mechanism 20, the probe 24 is generally conical and penetrates into the sediment along the vertical direction. The penetration mechanism 20 penetrates into the sediment to collect various parameters, in which the cone tip resistance, the side wall resistance, the pore water pressure, and the acceleration are all conventional collection parameters. The acceleration sensor is usually used to obtain the acceleration value, and the inclination measuring device is usually used to obtain the inclination / angle during the penetration of the penetration mechanism 20 into the sediment, such as a three-axis MEMS gyroscope to measure whether the penetration mechanism 20 is in a vertical state. In the conventional penetration process, if the penetration device is in a vertical state, the obtained data is valid, and if the penetration device is in an inclined state, the obtained data is invalid, and the penetration needs to be performed again.

[0074] The light source emitter and the light source collector are arranged in the axial direction of the probe 24, so that the two enter the sediment in sequence. If the light source emitter is located above the light source collector, the light source collector enters the sediment first, at this time, the light source collector cannot receive the light signal. If the light source collector is located above the light source emitter, the light source emitter enters the sediment first, at this time, the light source collector cannot receive the light signal. That is, no matter how the light source emitter and the light source collector are arranged, as long as one of them enters the sediment, the light source collector cannot receive the light signal. The light source emitter and the light source collector are both existing structures, and the light source emitter can be an LED lamp.

[0075] The water-soil interface is identified by the identification assembly, so that the tester does not need to spend time to judge the release position of the probing mechanism 20, the test time is greatly saved, the on-site test efficiency is improved, the release point of each test point is ensured to be located at the position of the water-soil interface, the initial speed of the probe 24 penetrating into the sediment is ensured to be consistent, the consistency of data between different test points is ensured, the data processing in the later period is facilitated, and the possibility of data processing error is reduced.

[0076] The pressure sensor can be arranged at the top of the pressure cabin 21, and it can be understood that the probing mechanism 20 is subjected to water pressure under water, the water pressure increases with the increase of the descending depth of the probing mechanism 20, and therefore the pressure value detected by the pressure sensor gradually increases, but when the probing mechanism 20 stops moving, the pressure value remains unchanged. When the pressure value detected by the pressure sensor remains unchanged within a first preset time length, it is indicated that the probing mechanism 20 no longer descends, and the penetration is completed.

[0077] The embodiment of the present application also provides a posture self-correcting formal sea release method, which adopts the above-mentioned probing device and comprises the following steps:

[0078] In the initial state, the brake assembly 124 is in the braking state, so that the reel 122 is braked and does not rotate, the limiting block 132 is clamped into the limiting shell 131, and the second cable 125 is wound on the reel 122;

[0079] The first cable 100 is uniformly released by the ship winch, so that the release mechanism 10 and the probing mechanism 20 are synchronously lowered;

[0080] When the pressure value detected by the pressure sensor is greater than or equal to a first set pressure value, it is judged that the probing mechanism 20 enters seawater, and the control assembly in the pressure cabin 21 controls the gyro rotor 112 to rotate around the axis thereof at a set rotating speed;

[0081] The first cable 100 is continuously released, if the light source collector does not receive a light signal, it is judged that the probing mechanism 20 reaches the water-soil interface, the brake assembly 124 is switched to the release state by the control assembly, the reel 122 rotates around the axis thereof under the weight of the probing mechanism 20, the second cable 125 on the reel 122 is released, the limiting block 132 is separated from the limiting shell 131, and the coil spring 123 stores elastic potential energy;

[0082] With the continuous release of the first cable 100, when the downward penetration speed of the probing mechanism 20 is less than the release speed of the first cable 100, the elastic potential energy of the coil spring 123 is released to drive the reel 122 to rotate to recover the second cable 125, until the limiting block 132 is clamped into the limiting shell 131;

[0083] When the pressure value detected by the pressure sensor remains unchanged within the first preset time length, the control assembly controls the brake assembly 124 to switch to the braking state.

[0084] When the first cable 100 is in the slack state and remains in the slack state within the first set time length, the first cable 100 is recovered by the ship winch, and the release mechanism 10 and the probe mechanism 20 are synchronously moved upward to be recovered.

[0085] The gyro rotor 112 can avoid the influence of sea waves, vertically release and penetrate the probe mechanism 20 into the seabed sediment, thereby ensuring the consistency of the penetration depth and the sediment strength characteristic parameters; through the cooperation of the release mechanism 10 and the probe mechanism 20, the automatic release and automatic recovery of the probe mechanism 20 are realized, and the working efficiency is higher when the sediment is tested at a test point for multiple times; the pressure sensor and the identification assembly are matched during the operation, and then the control assembly issues an instruction, so that the starting time of the gyro rotor 112 and the release time of the probe mechanism 20 are determined, and the safety of the personnel in the operation process and the intelligent level of the equipment test are higher.

[0086] Whether the first cable 100 is in the slack state can be observed and known by the operator on the ship. When the pressure value detected by the pressure sensor remains unchanged within the first preset time length, it indicates that the penetration is completed. When the first cable 100 is in the slack state and remains in the slack state within the first set time length, it indicates that the penetration is completed and the recovery of the probe mechanism 20 is completed, at this time, the first cable 100 can be recovered by the ship winch, and the release mechanism 10 and the probe mechanism 20 are synchronously moved upward to be recovered. The first preset time length and the second preset time length can be set according to the actual situation.

[0087] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited to the above embodiments. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-correcting marine release device, characterized in that, It includes a release mechanism and a probe mechanism, wherein the release mechanism includes: The balancing assembly includes a first housing and a gyroscope rotor disposed within the first housing, the top of the first housing being capable of connecting to a first cable of a marine winch; The release assembly includes a second housing and a reel, a coil spring, and a braking assembly disposed within the second housing. The second housing is disposed at the bottom of the first housing. A second cable is wound around the reel. The braking assembly is capable of switching between a braking state and a release state. When in the braking state, the braking assembly brakes the reel. When in the release state, the braking assembly releases the brake on the reel. One end of the coil spring is connected to the reel, and the other end of the coil spring is fixedly connected to the second housing. A limiting component includes a limiting shell and a limiting block. The limiting shell is disposed at the bottom of the second outer shell. The second cable passes through the limiting shell and is connected to the limiting block. The limiting block can be inserted into the limiting shell. The probing mechanism includes a pressure-resistant chamber, a counterweight assembly, a probe rod, and a probe connected in sequence. The pressure-resistant chamber is connected to the limiting block. A pressure sensor is installed on the pressure-resistant chamber. An identification component is installed on the probe. The identification component includes a light source emitter and a light source collector arranged at intervals along the axial direction of the probe. The light source collector can receive the signal from the light source emitter to identify the water-soil interface.

2. The attitude self-correcting marine release device according to claim 1, characterized in that, The reel has a threading cavity inside, which includes a first section extending axially along the reel and a second section extending radially along the reel. A waterproof slip ring is provided at the end of the first section away from the second section. A threading hole communicating with the second section is provided on the reel at the position where the second cable is wound. A transmission line is threaded through the hollow interior of the second cable. The transmission line passes through the threading hole and the threading cavity and is electrically connected to the waterproof slip ring.

3. The attitude self-correcting marine release device according to claim 2, characterized in that, The release mechanism further includes a support structure, which is fixedly connected to the second outer shell. The reel is rotatably mounted on the support structure, and the waterproof electric slip ring is fixedly mounted on the support structure. The support structure has a first mounting cavity, and the coil spring is disposed within the first mounting cavity.

4. The attitude self-correcting marine release device according to claim 3, characterized in that, The reel also has a silicone oil cavity that is isolated from the threading cavity. The silicone oil cavity is connected to the first mounting cavity and is filled with silicone oil. The reel also has a second mounting cavity that is connected to the silicone oil cavity. A rubber barrel is installed in the second mounting cavity. One end of the rubber barrel is connected to the outside so that seawater can enter the rubber barrel and squeeze the silicone oil in the silicone oil cavity.

5. The attitude self-correcting marine release device according to claim 4, characterized in that, Two coil springs are provided, and the two coil springs are distributed on both sides of the reel. Both of the first mounting cavities are connected to the silicone oil cavity.

6. The attitude self-correcting marine release device according to claim 5, characterized in that, A transition block is formed in the middle of the reel within the silicone oil cavity, and the second section is formed in the transition block. The transition block is provided with a connecting hole that connects the silicone oil cavities on both sides.

7. The attitude self-correcting marine release device according to claim 1, characterized in that, The braking assembly includes a ratchet and a ratchet plate. The ratchet plate is movable along a first straight line to engage or release the ratchet. When the ratchet is released, it is able to rotate in the forward or reverse direction. When the ratchet is engaged, it is locked in one direction. The reel is able to drive the ratchet to rotate.

8. The attitude self-correcting marine release device according to claim 7, characterized in that, The ratchet is mounted on a ratchet shaft, which is rotatably connected to the second housing. A first gear is mounted on the ratchet shaft, and a second gear is mounted on the reel. The first gear meshes with the second gear.

9. The attitude self-correcting marine release device according to any one of claims 1-8, characterized in that, The limiting shell has a limiting cavity with an opening facing downwards. The limiting cavity is shaped like a frustum. The limiting block includes a limiting part and a connecting part. The limiting part is shaped like a frustum and is connected to the second cable. The connecting part is connected to the pressure-resistant chamber.

10. A self-correcting attitude-based ocean release method, characterized in that, The attitude self-correcting marine release device according to any one of claims 1-9 comprises: In the initial state, the braking assembly is in the braking state, which brakes the reel and prevents it from rotating. The limit block is engaged in the limit housing, and the second cable is wound around the reel. The first cable is released at a constant speed by a marine winch, so that the release mechanism and the probe mechanism are lowered synchronously. When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, it is determined that the probe mechanism has entered the seawater, and the control component in the pressure tank controls the gyroscope rotor to rotate around its own axis at a set speed. Continue releasing the first cable. If the light source collector does not receive a light signal, it is determined that the probe mechanism has reached the water-soil interface. The control component controls the braking component to switch to the release state. Under the weight of the probe mechanism, the reel rotates around its own axis, the second cable on the reel is released, the limit block is disengaged from the limit shell, and the coil spring stores elastic potential energy. As the first cable continues to be released, when the downward penetration speed of the probe mechanism is less than the release speed of the first cable, the elastic potential energy of the coil spring is released to drive the reel to rotate and retract the second cable until the limit block is locked into the limit shell. If the pressure value detected by the pressure sensor remains unchanged for a first preset time period, the control component controls the braking component to switch to the braking state. If the first cable is in a slack state and remains slack for a second set period of time, the first cable is retrieved by a marine winch, and the release mechanism and the probe mechanism move upward synchronously to be retrieved.

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