Attitude self-correction type ocean release device and method

Abstract

The invention discloses a posture self-correcting type ocean releasing device and method, and belongs to the technical field of ocean geological exploration, the posture self-correcting type ocean releasing device comprises a releasing mechanism and a sounding mechanism, the releasing mechanism comprises a balance assembly, a releasing assembly and a limiting assembly, the balance assembly comprises a gyro rotor, and the releasing assembly comprises a limiting assembly; the releasing assembly comprises a reel, a coil spring and a braking assembly, a second cable is wound on the reel, and the braking assembly can be switched between a braking state and a releasing state; the limiting assembly comprises a limiting shell and a limiting block, the second cable penetrates through the limiting shell and is connected with the limiting block, and the limiting block can be clamped into the limiting shell; and the sounding mechanism comprises a pressure-resistant cabin, a counterweight assembly, a probe rod and a probe which are connected in sequence. The attitude self-correction type ocean releasing device is adopted in the attitude self-correction type ocean releasing method, it is guaranteed that the attitude self-correction type ocean releasing device vertically falls down and penetrates into seabed sediment, releasing and recycling of the second mooring rope are achieved, and the testing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine geological exploration, and particularly relates to an attitude self-calibrating marine release device and method. Background Art

[0002] With the accelerating advancement of marine engineering construction, the self-falling penetration technology is widely used in the field of marine geological exploration. The working principle of this technology is to freely release a penetration component from a certain height through a release device, and rely on the self-gravity of the penetration component to vertically penetrate into the sediment at a certain speed, and measure the strength parameters of shallow marine sediments such as cone tip resistance, side friction resistance, and pore water pressure.

[0003] In order to accurately measure the strength parameters of shallow marine sediments, the penetration component needs to fall and penetrate into the seabed sediment in a vertical attitude during the free fall process. However, when the penetration component is operating at sea, it is prone to tilt under the influence of waves and it is difficult to achieve vertical fall and penetration. Usually, a triaxial sensor is set on the penetration component to obtain the tilt angle of the penetration component. If the tilt angle of the penetration component does not exceed the set value, it is determined that the measured strength parameters of the shallow marine sediments are valid; if the tilt angle of the penetration component exceeds the set value, it is determined that the measured strength parameters of the shallow marine sediments are invalid and the penetration needs to be carried out again. The tilt of the penetration component results in inaccurate data measured by the penetration component, and multiple re-penetrations increase the cost. Summary of the Invention

[0004] The purpose of the present invention is to provide an attitude self-calibrating marine release device and method to solve the technical problem that in the prior art, when the penetration component is operating at sea, it is prone to tilt under the influence of waves and it is difficult to achieve vertical fall and penetration.

[0005] With the above concept, the technical solution adopted by the present invention is as follows:

[0006] An attitude self-calibrating marine release device includes a release mechanism and a penetration mechanism. The release mechanism includes:

[0007] A balance component, including a first outer shell and a gyro rotor arranged in the first outer shell. The top of the first outer shell can be connected to the first cable of a marine winch;

[0008] A release component, including a second outer shell and a reel, a torsion spring and a braking component arranged in the second outer shell. The second outer shell is arranged at the bottom of the first outer shell. A second cable is wound around the reel. The braking component can switch between a braking state and a release state. The braking component in the braking state brakes the reel, and the braking component in the release state releases the braking of the reel. One end of the torsion spring is connected to the reel, and the other end of the torsion spring is fixedly connected to the second outer shell;

[0009] The limiting component includes a limiting shell and a limiting block. The limiting shell is arranged at the bottom of the second outer shell. The second cable passes through the limiting shell and is connected to the limiting block, and the limiting block can be clamped into the limiting shell;

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

[0011] Preferably, a wire threading cavity is arranged inside the reel. The wire threading cavity includes a first section extending along the axial direction of the reel and a second section extending along the radial direction of the reel. A waterproof slip ring is arranged at one end of the first section far away from the second section. A wire threading hole communicating with the second section is arranged at the position where the second cable is wound on the reel. A transmission line is hollowly arranged inside the second cable, and the transmission line passes through the wire threading hole and the wire threading cavity and is electrically connected to the waterproof slip ring.

[0012] Preferably, the release mechanism further includes a support structure. The support structure is fixedly connected to the second outer shell. The reel is rotatably arranged on the support structure. The waterproof slip ring is fixedly arranged on the support structure. The support structure has a first installation cavity, and the torsion spring is arranged inside the first installation cavity.

[0013] Preferably, a silicone oil cavity isolated from the wire threading cavity is further arranged inside the reel. The silicone oil cavity communicates with the first installation cavity and is filled with silicone oil inside; a second installation cavity communicating with the silicone oil cavity is further arranged inside the reel. A rubber barrel is arranged inside the second installation cavity. One end of the rubber barrel communicates with the outside so that seawater can enter the rubber barrel and squeeze the silicone oil in the silicone oil cavity.

[0014] Preferably, two torsion springs are arranged. The two torsion springs are distributed on both sides of the reel, and the two first installation cavities both communicate with the silicone oil cavity.

[0015] Preferably, a transfer block is formed inside the reel in the silicone oil cavity. The second section is opened on the transfer block, and a communication hole communicating with the silicone oil cavities on both sides is arranged on the transfer block.

[0016] Preferably, the braking assembly includes a ratchet wheel and a ratchet piece. The ratchet piece can move along a first straight line to abut against or release the ratchet wheel. When the ratchet wheel is released, it can rotate in the positive or negative direction. When the ratchet wheel is abutted against, it is locked unidirectionally. The reel can drive the ratchet wheel to rotate.

[0017] Preferably, the ratchet wheel is arranged on a ratchet shaft. The ratchet shaft is rotatably connected to the second housing. A first gear is arranged on the ratchet shaft, and a second gear is arranged on the reel. The first gear meshes with the second gear.

[0018] Preferably, the limiting housing has a limiting cavity with an opening facing downward. The limiting cavity is frustum-shaped. The limiting block includes a limiting portion and a connecting portion. The limiting portion is frustum-shaped and is connected to the second cable. The connecting portion is connected to the pressure-resistant cabin.

[0019] A method for ocean release with attitude self-calibration uses the above-mentioned ocean release device with attitude self-calibration, including:

[0020] In the initial state, the braking assembly is in the braking state, so that the reel is braked and does not rotate. The limiting block is stuck into the limiting housing, and the second cable is wound around the reel.

[0021] The first cable is released at a constant speed by a marine winch, so that the release mechanism and the sounding mechanism are lowered synchronously.

[0022] 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 sounding mechanism has entered the sea water. The control component in the pressure-resistant cabin controls the gyro rotor to rotate around its own axis at a set speed.

[0023] Continue to release the first cable. If the light source collector does not receive an optical signal, it is determined that the sounding mechanism has reached the water-soil interface. The control component controls the braking assembly to switch to the release state. Under the weight of the sounding mechanism, the reel rotates around its own axis, and the second cable on the reel is released. The limiting block disengages from the limiting housing, and the spiral spring stores elastic potential energy.

[0024] 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 spiral spring is released to drive the reel to rotate and recover the second cable until the limiting block is stuck into the limiting housing.

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

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

[0027] Advantages of the present invention:

[0028] For the attitude self-calibrating marine release device proposed by the present invention, the gyro rotor of the balance assembly generates angular momentum through its own high-speed rotation, so that the center of gravity of the whole device is located on the central axis, realizing automatic correction of the attitude of the whole device, ensuring vertical falling and penetration into the seabed sediment, thus ensuring the consistency of the penetration depth and the sediment strength characteristic parameters; by switching the braking assembly between the braking state and the release state and cooperating with the coil spring, the release and recovery of the second cable are realized, improving the test efficiency; by setting the limiting assembly, the second cable passes through the limiting shell and is connected to the limiting block. The limiting block can be clamped into the limiting shell, and the pressure-resistant cabin of the penetration mechanism is connected to the limiting block. The cooperation between the limiting shell and the limiting block realizes the limitation of the penetration mechanism, which can avoid the shaking of the penetration mechanism and make the penetration mechanism more stable.

[0029] For the attitude self-calibrating marine release method proposed by the present invention, due to the adoption of the above-mentioned attitude self-calibrating marine release device, 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 penetration mechanism enters the sea water, and the control component in the pressure-resistant cabin controls the gyro rotor to rotate around its own axis at a set speed to ensure vertical falling; if the light source collector does not receive the optical signal, it is determined that the penetration mechanism reaches the water-soil interface, and the control component controls the braking assembly to switch to the release state to realize the automatic release of the second cable; as the first cable continues to be released, when the downward penetration speed of the penetration 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 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 period, indicating that the penetration is completed, the control component controls the braking assembly to switch to the braking state; when the first cable is in a slack state and remains slack within the first set time period, the first cable is recovered by the marine winch, and the release mechanism and the penetration mechanism are synchronously lifted up for recovery. It greatly saves time, improves work efficiency and operation safety, and ensures the consistency and accuracy of measurement data. Description of the drawings

[0030] Figure 1 is a schematic structural diagram of the attitude self-calibrating marine release device provided in this embodiment;

[0031] Figure 2 is a first schematic diagram of a partial structure of the attitude self-calibrating marine release device provided in this embodiment;

[0032] Figure 3 is a first sectional view of a partial structure of the attitude self-calibrating marine release device provided in this embodiment;

[0033] Figure 4It is the second cross-sectional view of the partial structure of the attitude self-calibrating marine release device provided in this embodiment;

[0034] Figure 5 It is the second schematic diagram of the partial structure of the attitude self-calibrating marine release device provided in this embodiment.

[0035] In the figure:

[0036] 100. First cable;

[0037] 10. Release mechanism; 11. Balancing component; 111. First outer shell; 112. Gyro rotor; 113. Motor; 114. Rotor outer shell; 115. Lifting lug; 12. Release component; 121. Second outer shell; 122. Reel; 1221. Threading cavity; 1222. Threading hole; 1223. Silicone oil cavity; 1224. Second installation cavity; 1225. Adapter block; 123. Torsion spring; 124. Braking component; 1241. Ratchet wheel; 1242. Ratchet pawl; 1243. Ratchet shaft; 1244. First gear; 1245. Second gear; 1246. Electromagnetic rod; 125. Second cable; 13. Limiting component; 131. Limiting shell; 132. Limiting block; 1321. Limiting part; 1322. Connecting part; 14. Waterproof slip ring; 15. Support structure; 151. First installation cavity; 152. Fixed seat; 153. Support block; 154. Protective shell; 16. Rubber barrel;

[0038] 20. Penetration mechanism; 21. Pressure-resistant cabin; 22. Counterweight component; 23. Probe rod; 24. Probe head. Detailed implementation manners

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0040] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

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

[0043] See Figures 1 to 5 , an attitude self-calibrating type ocean release device is provided in an embodiment of the present invention, which includes a release mechanism 10 and a sounding mechanism 20. The release mechanism 10 includes a balance assembly 11, a release assembly 12 and a limit assembly 13. The balance assembly 11 includes a first housing 111 and a gyro rotor 112 disposed inside 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 assembly 12 includes a second housing 121 and a reel 122, a winding spring 123 and a braking assembly 124 disposed inside the second housing 121. The second housing 121 is disposed at the bottom of the first housing 111. A second cable 125 is wound around the reel 122. The braking assembly 124 can switch between a braking state and a release state. The braking assembly 124 in the braking state brakes the reel 122, and the braking assembly 124 in the release state releases the braking of the reel 122. One end of the winding spring 123 is connected to the reel 122, and the other end of the winding spring 123 is fixedly connected to the second housing 121; the limit assembly 13 includes a limit housing 131 and a limit block 132. The limit housing 131 is disposed at the bottom of the second housing 121. The second cable 125 passes through the limit housing 131 and is connected to the limit block 132. The limit block 132 can be inserted into the limit housing 131; the sounding mechanism 20 includes a pressure-resistant cabin 21, a counterweight assembly 22, a sounding rod 23 and a probe 24 connected in sequence. The pressure-resistant cabin 21 is connected to the limit block 132. A pressure sensor is disposed on the pressure-resistant cabin 21. An identification assembly is disposed on the probe 24. The identification assembly includes a light source emitter and a light source collector disposed at intervals along the axial direction of the probe 24. The light source collector can receive the signal of the light source emitter to identify the water-soil interface.

[0044] The gyro rotor 112 of the balance assembly 11 generates angular momentum through its own high-speed rotation, causing the center of gravity of the entire device to be located on the central axis, achieving automatic correction of the attitude of the entire device, ensuring vertical descent and penetration into the seabed sediment, thereby ensuring the consistency of the penetration depth and the sediment strength characteristic parameters; by switching the brake assembly 124 between the braking state and the release state and cooperating with the coil spring 123, the release and recovery of the second cable 125 are realized, improving the test efficiency; by setting the limit assembly 13, the second cable 125 is threaded through the limit housing 131 and connected to the limit block 132. The limit block 132 can be snapped into the limit housing 131. The pressure-resistant cabin 21 of the sounding mechanism 20 is connected to the limit block 132. The cooperation between the limit housing 131 and the limit block 132 realizes the limitation of the sounding mechanism 20, which can prevent the sounding mechanism 20 from shaking and make the sounding mechanism 20 more stable.

[0045] During use, in the initial state, the brake assembly 124 is in the braking state, causing the reel 122 to be braked and the reel 122 not to rotate. The limit block 132 is snapped into the limit housing 131, and the second cable 125 is wound around the reel 122; the first cable 100 is evenly released by the marine winch, causing the release mechanism 10 and the sounding mechanism 20 to be 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 sounding mechanism 20 has entered the seawater, and the control component in the pressure-resistant cabin 21 controls the gyro rotor 112 to rotate around its own axis at a set speed; continue to release the first cable 100. If the light source collector does not receive an optical signal, it is determined that the sounding mechanism 20 has reached the water-soil interface, and the control component controls the brake assembly 124 to switch to the release state. Under the action of the weight of the sounding mechanism 20, the reel 122 rotates around its own axis, and the second cable 125 on the reel 122 is released. The limit block 132 disengages from the limit housing 131, and the coil spring 123 stores elastic potential energy; as the first cable 100 continues to be 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 limit block 132 is snapped into the limit housing 131; when the pressure value detected by the pressure sensor remains unchanged within the first preset time period, the control component controls the brake assembly 124 to switch to the braking state; when the first cable 100 is in a slack state and remains slack within the first set time period, the first cable 100 is recovered by the marine winch, and the release mechanism 10 and the sounding mechanism 20 are synchronously lifted for recovery.

[0046] After the brake assembly 124 switches to the release 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 relatively large, and the speed difference between the sounding mechanism 20 and the first cable 100 causes the reel 122 to rotate around its own axis, and the second cable 125 on the reel 122 is released.

[0047] Among them, the marine winch is an existing mechanism. The marine winch includes a drum and a driving mechanism for driving the drum to rotate. The first cable 100 is wound around the drum, and the release or recovery of the first cable 100 is realized by driving the drum to rotate forward or backward through the driving mechanism.

[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 whole device. The gyro rotor 112 can be made of existing materials, such as metals or composite materials. The gyro rotor 112 can be driven by an existing motor 113. The motor 113 is arranged inside the first housing 111 and is electrically connected to the control component. The control component can receive the signal of the pressure sensor. 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 sounding mechanism 20 enters the sea water. The control component in the pressure-resistant cabin 21 controls the motor 113 to start, so that the gyro rotor 112 rotates around its own axis at a set speed. The magnitude of the set speed can be set according to actual needs and is not limited here.

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

[0050] Lifting lugs 115 are arranged at the top of the first housing 111 to facilitate the connection of the first cable 100. Specifically, two lifting lugs 115 are arranged and spaced from each other. Installation holes are provided on the lifting lugs 115 for fixing the mounting shaft, and the first cable 100 bypasses the mounting shaft and is fixed to the mounting shaft.

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

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

[0053] The limiting shell 131 and the second housing 121 can be connected by threads. The limiting shell 131 has a limiting cavity with an opening facing downwards. The limiting cavity is frustum-shaped. The limiting block 132 includes a limiting part 1321 and a connecting part 1322. The limiting part 1321 is frustum-shaped and is connected to the second cable 125, and the connecting part 1322 is connected to the pressure-resistant cabin 21. The frustum-shaped structure plays a guiding role to facilitate the insertion of the limiting block 132 into the limiting shell 131. Specifically, a lock is arranged on the limiting block 132, and the second cable 125 is connected to the lock.

[0054] In this embodiment, the braking component 124 brakes the reel 122 in a one-way manner. After the one-way braking, the winding spring 123 can drive the reel 122 to rotate in one direction, but cannot rotate in the opposite direction.

[0055] Specifically, the braking component 124 includes a ratchet wheel 1241 and a ratchet piece 1242. The ratchet piece 1242 can move along a first straight line to abut against or release the ratchet wheel 1241. When the ratchet wheel 1241 is released, the ratchet wheel 1241 can rotate in the forward or reverse direction. When the ratchet wheel 1241 is abutted, the ratchet wheel 1241 is locked unidirectionally, and the reel 122 can drive the ratchet wheel 1241 to rotate.

[0056] During the process of releasing the second cable 125 on the reel 122, the reel 122 drives the ratchet wheel 1241 to rotate forward, and the winding spring 123 connected to the reel 122 stores elastic potential energy; when the elastic potential energy of the winding spring 123 is released, the reel 122 drives the ratchet wheel 1241 to rotate in the reverse direction, and the second cable 125 is wound back onto the reel 122; even if the ratchet wheel 1241 is locked unidirectionally, it will not affect the reel 122 driving the ratchet wheel 1241 to rotate in the reverse direction under the action of the winding spring 123.

[0057] In this embodiment, the ratchet wheel 1241 is arranged on the ratchet shaft 1243. The ratchet shaft 1243 is rotatably connected to the second housing 121. A first gear 1244 is arranged on the ratchet shaft 1243, and a second gear 1245 is arranged on the reel 122. The first gear 1244 meshes with the second gear 1245.

[0058] Specifically, the ratchet shaft 1243 is connected to the second housing 121 through a brake bearing. Both the first gear 1244 and the second gear 1245 are provided with two 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. A locking groove is arranged on one side surface of the ratchet piece 1242. 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. When the ratchet piece 1242 releases the ratchet wheel 1241, the ratchet teeth of the ratchet wheel 1241 are disengaged from the locking groove.

[0060] The ratchet piece 1242 can adopt an existing driving mechanism, such as a cylinder, a hydraulic cylinder or a linear motor. Exemplarily, the braking assembly 124 further includes an electromagnetic rod 1246. The rod body of the electromagnetic rod 1246 is connected to the ratchet piece 1242. The electromagnetic rod 1246 controls the movement of the ratchet piece 1242 by energization and de-energization. The electromagnet in the electromagnetic rod 1246 is a device that generates electromagnetic force when energized, which is an existing structure. By winding a conductive winding matching its power around the iron core, this current-carrying coil has magnetism like a magnet and is called an electromagnet. The electromagnet has magnetism when energized and loses its magnetism after de-energization. The magnetism of the electromagnet can attract the rod body to keep the ratchet piece 1242 in the braking state of meshing with the ratchet wheel 1241. After de-energization, the rod body resets under the action of the spring to disengage the ratchet piece 1242 from the ratchet wheel 1241.

[0061] A battery is arranged inside the pressure-resistant cabin 21, and the battery supplies power to the electromagnetic rod 1246, the pressure sensor, the motor 113, the identification assembly, etc.

[0062] A wire threading cavity 1221 is arranged inside the reel 122. The wire threading cavity 1221 includes 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. A waterproof slip ring 14 is arranged at one end of the first section far away from the second section. A wire threading hole 1222 communicating with the second section is arranged at the position where the second cable 125 is wound around the reel 122. A transmission line is hollowly arranged inside the second cable 125, and the transmission line passes through the wire threading hole 1222 and the wire threading cavity 1221 and is electrically connected to the waterproof slip ring 14. The second cable 125 is not a conventional solid steel wire rope, but a transmission line is arranged inside it for signal or data transmission. One end of the transmission line is electrically connected to the waterproof slip ring 14, and the other end of the transmission line is electrically connected to the control assembly inside the pressure-resistant cabin 21.

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

[0064] The release mechanism 10 further includes a support structure 15. The support structure 15 is fixedly connected to the second housing 121. The reel 122 is rotatably arranged on the support structure 15. The waterproof slip ring 14 is fixedly arranged on the support structure 15. The support structure 15 has a first installation cavity 151, and the torsion spring 123 is arranged in the first installation cavity 151. The support structure 15 plays a supporting role for the reel 122, and a bearing connection can be adopted between the reel 122 and the support structure 15.

[0065] An internal oil chamber 1223 isolated from the wire threading cavity 1221 is further arranged inside the reel 122. The internal oil chamber 1223 is communicated with the first installation cavity 151 and filled with silicone oil inside. A second installation cavity 1224 communicated with the internal oil chamber 1223 is further arranged inside the reel 122. A rubber barrel 16 is arranged in the second installation cavity 1224. One end of the rubber barrel 16 is communicated with the outside so that seawater can enter the rubber barrel 16 and extrude the silicone oil in the internal oil chamber 1223.

[0066] When operating in seawater, the seawater pressure acts on the rubber barrel 16. Since the rubber barrel 16 is elastic, it can undergo elastic deformation to ensure that the pressures inside and outside the internal oil chamber 1223 are balanced, preventing the influence of the pressure difference inside and outside the first installation cavity 151 on the movement of the torsion spring 123.

[0067] In this embodiment, two torsion springs 123 are arranged, and the two torsion springs 123 are distributed on both sides of the reel 122. The torsion spring 123 is a conventional structure, and its working principle is the prior art, which will not be elaborated here. Both of the two first installation cavities 151 are communicated with the internal oil chamber 1223.

[0068] Specifically, a transfer block 1225 is formed in the middle of the reel 122 in the internal oil chamber 1223. The second section of the wire threading cavity 1221 is opened on the transfer block 1225. A communication hole communicating the internal oil chambers 1223 on both sides is arranged on the transfer block 1225.

[0069] The support structure 15 includes a fixed seat 152, a support block 153, and a protective shell 154. The fixed seat 152 is fixedly connected to the second housing 121. The support block 153 is arranged on the fixed seat 152. The reel 122 is rotatably connected to the support block 153. The protective shell 154 is arranged on the outer periphery of the support block 153. The torsion spring 123 is arranged inside the protective shell 154.

[0070] For the sounding mechanism 20, the counterweight assembly 22 includes a counterweight and a counterweight rod. One end of the counterweight rod is connected to the pressure-resistant cabin 21, the other end of the counterweight rod is connected to the sounding rod 23, and the counterweight is sleeved on the outside of the counterweight rod.

[0071] Threaded connections can be adopted between the pressure-resistant cabin 21 and the limit block 132, between the counterweight rod and the pressure-resistant cabin 21, between the counterweight rod and the sounding rod 23, and between the sounding rod 23 and the probe 24.

[0072] A signal is transmitted between the release mechanism 10 and the sounding mechanism 20 through a transmission line. The release mechanism 10 and the sounding mechanism 20 can share a switch on the sounding mechanism 20. Before releasing through the first cable 100, the switch is turned on, so that both the release mechanism 10 and the sounding mechanism 20 can be powered on and operate. The control component will receive the signals from the pressure sensor and the identification component in real time and make corresponding judgments. The control component can receive the signal feedback from 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 component; the control component can receive the signal feedback from the light source collector. When the light source collector does not receive the optical signal, the light source collector feeds back the second signal to the control component. On the premise of obtaining the first signal, the control component obtains the second signal before controlling the electromagnetic rod 1246 to cut off the power, so that the ratchet 1242 moves away from the ratchet wheel 1241. Among them, the structure and working principle of the control component are prior art and will not be elaborated here.

[0073] In the sounding mechanism 20, the probe 24 is generally conical and penetrates the sediment in the vertical direction. The sounding mechanism 20 penetrates the sediment to collect various parameters. Among them, the tip resistance, the sidewall resistance, the pore water pressure, and the acceleration are all conventional collection parameters. Usually, an acceleration sensor is used to obtain the acceleration value, and a common inclination measuring device is used to obtain the inclination / tilt angle during the process of the sounding mechanism 20 penetrating the sediment. For example, a three-axis MEMS gyroscope is used to measure whether the sounding mechanism 20 is in a vertical state. During the conventional sounding process, if the sounding device is in a vertical state, the obtained data is valid; if the sounding device is in an inclined state, the obtained data is invalid and the sounding needs to be performed again.

[0074] The light source emitter and the light source collector are arranged at intervals along the axial direction of the probe 24, so the time for the two to enter the sediment is different. 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 optical 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 optical signal. That is to say, regardless of the setting positions of the light source emitter and the light source collector, as long as one of them enters the sediment, the light source collector cannot receive the optical signal. Both the light source emitter and the light source collector are existing structures, and the light source emitter can be an LED lamp.

[0075] The water-soil interface is identified by the identification component, which enables the tester not to spend time judging the release position of the penetration mechanism 20, greatly saving the test time and improving the on-site test efficiency. Moreover, it ensures that the release point of each measuring point is located at the position of the water-soil interface, guarantees that the initial penetration speed of the probe 24 into the sediment is consistent, ensures the consistency of data between different measuring points, facilitates subsequent data processing, and simultaneously reduces the possibility of data processing errors.

[0076] The pressure sensor can be arranged at the top of the pressure-resistant cabin 21. It can be understood that under the action of water pressure, as the penetration depth of the penetration mechanism 20 increases underwater, the water pressure increases, so the pressure value detected by the pressure sensor gradually increases. However, when the penetration mechanism 20 stops moving, the pressure value remains unchanged. When the pressure value detected by the pressure sensor remains unchanged within the first preset time period, it indicates that the penetration mechanism 20 no longer descends, and the penetration is completed.

[0077] The embodiment of the present invention also provides an attitude self-calibrating ocean release method, which adopts the above-mentioned penetration device and includes:

[0078] In the initial state, the braking component 124 is in the braking state, so that the reel 122 is braked and does not rotate. The limiting block 132 is stuck into the limiting shell 131, and the second cable 125 is wound around the reel 122.

[0079] The first cable 100 is released at a constant speed through the marine winch, so that the release mechanism 10 and the penetration mechanism 20 are lowered synchronously.

[0080] 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 penetration mechanism 20 enters the sea water, and the control component in the pressure-resistant cabin 21 controls the gyro rotor 112 to rotate around its own axis at a set speed.

[0081] Continue to release the first cable 100. If the light source collector does not receive the optical signal, it is determined that the penetration mechanism 20 reaches the water-soil interface. The control component controls the braking component 124 to switch to the release state. Under the action of the weight of the penetration mechanism 20, the reel 122 rotates around its own axis, the second cable 125 on the reel 122 is released, the limiting block 132 disengages from the limiting shell 131, and the torsion spring 123 stores elastic potential energy.

[0082] As the first cable 100 continues to be released, when the downward penetration speed of the penetration mechanism 20 is less than the release speed of the first cable 100, the elastic potential energy of the torsion spring 123 is released to drive the reel 122 to rotate and recover the second cable 125 until the limiting block 132 is stuck into the limiting shell 131.

[0083] When the pressure value detected by the pressure sensor remains unchanged within the first preset time period, the control component controls the braking component 124 to switch to the braking state;

[0084] When the first cable 100 is in a slack state and remains in the slack state within the first set time period, the first cable 100 is recovered by the marine winch, and the release mechanism 10 and the sounding mechanism 20 are synchronously lifted upward for recovery.

[0085] The gyro rotor 112 can avoid the influence of sea waves, enabling the sounding mechanism 20 to be vertically released and penetrate into the seabed sediments, thus ensuring the consistency of the penetration depth and the sediment strength characteristic parameters; through the cooperation of the release mechanism 10 and the sounding mechanism 20, the automatic release and automatic recovery of the sounding mechanism 20 are realized, and the working efficiency is higher when multiple sediment tests are carried out at a test point; during operation, through the cooperation of the pressure sensor and the identification component, and then the control component issues an instruction, which is convenient for determining the starting moment of the gyro rotor 112 and the release moment of the sounding mechanism 20, and the safety of the operator during the operation process and the intelligent level of equipment testing are higher.

[0086] Whether the first cable 100 is in a slack state can be known by observation of the operator on the ship. When the pressure value detected by the pressure sensor remains unchanged within the first preset time period, it indicates that the penetration is completed. When the first cable 100 is in a slack state and remains in the slack state within the first set time period, it indicates that the penetration is completed and the recovery of the sounding mechanism 20 has been completed. At this time, the first cable 100 can be recovered by the marine winch, and the release mechanism 10 and the sounding mechanism 20 are synchronously lifted upward for recovery. The first preset time period and the second preset time period can be set according to the actual situation.

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

Claims

1. An attitude self-calibrating marine release device, characterized in that, It includes a release mechanism and a sounding mechanism. The release mechanism includes: A balance component, including a first outer shell and a gyro rotor disposed within the first outer shell. The top of the first outer shell can be connected to the first cable of a marine winch. A release component, including a second outer shell and a reel, a winding spring, and a braking component disposed within the second outer shell. The second outer shell is disposed at the bottom of the first outer shell. A second cable is wound around the reel. The braking component can switch between a braking state and a release state. The braking component in the braking state brakes the reel, and the braking component in the release state releases the braking of the reel. One end of the winding spring is connected to the reel, and the other end of the winding spring is fixedly connected to the second outer shell. A limiting component, including 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 sounding mechanism includes a pressure-resistant cabin, a counterweight component, a sounding rod, and a probe that are connected in sequence. The pressure-resistant cabin is connected to the limiting block. A pressure sensor is disposed on the pressure-resistant cabin. An identification component is disposed on the probe. The identification component includes a light source emitter and a light source collector that are spaced apart along the axial direction of the probe. The light source collector can receive the signal of the light source emitter to identify the water-soil interface.

2. The attitude self-calibrating type ocean release device according to claim 1, characterized in that, A wire threading cavity is disposed inside the reel. The wire threading cavity includes a first section extending along the axial direction of the reel and a second section extending along the radial direction of the reel. A waterproof slip ring is disposed at one end of the first section away from the second section. A wire threading hole communicating with the second section is disposed at the position where the second cable is wound around the reel. A transmission line is hollowly disposed inside the second cable. The transmission line passes through the wire threading hole and the wire threading cavity and is electrically connected to the waterproof slip ring.

3. The attitude self-calibrating type ocean release device according to claim 2, characterized in that, The release mechanism further includes a support structure. The support structure is fixedly connected to the second outer shell. The reel is rotatably disposed on the support structure. The waterproof slip ring is fixedly disposed on the support structure. The support structure has a first installation cavity, and the winding spring is disposed within the first installation cavity.

4. The attitude self-calibrating type ocean release device according to claim 3, characterized in that, An oil silicone cavity isolated from the wire threading cavity is further disposed inside the reel. The oil silicone cavity communicates with the first installation cavity and is filled with oil silicone. A second installation cavity communicating with the oil silicone cavity is further disposed inside the reel. A rubber barrel is disposed within the second installation cavity. One end of the rubber barrel communicates with the outside, enabling seawater to enter the rubber barrel and squeeze the oil silicone in the oil silicone cavity.

5. The attitude self-calibrating type ocean release device according to claim 4, wherein There are two winding springs. The two winding springs are distributed on both sides of the reel. Both of the two first installation cavities communicate with the oil silicone cavity.

6. The attitude self-calibrating type ocean release device according to claim 5, characterized in that, A transfer block is formed within the oil silicone cavity at the middle of the reel. The second section is opened on the transfer block. A communication hole communicating with the oil silicone cavities on both sides is disposed on the transfer block.

7. The attitude self-calibrating type marine release device according to claim 1, characterized in that, The brake assembly includes a ratchet and a ratchet plate, wherein the ratchet plate can move along a first straight line to tighten or release the ratchet, and when the ratchet is released, the ratchet can rotate in a forward or reverse direction, and when the ratchet is tightened, the ratchet is unidirectionally locked, and the reel can drive the ratchet to rotate.

8. The attitude self-calibrating type ocean release device according to claim 7, characterized in that, The ratchet is arranged on a ratchet shaft, the ratchet shaft is rotatably connected to the second housing, a first gear is arranged on the ratchet shaft, a second gear is arranged on the reel, and the first gear is meshed with the second gear.

9. The attitude self-calibrating type ocean release device according to any one of claims 1-8, characterized in that, The limiting shell has a limiting cavity with an opening facing downward, and the limiting cavity is in a frustum shape. The limiting block includes a limiting portion and a connecting portion, the limiting portion is in a frustum shape and is connected to the second cable, and the connecting portion is connected to the pressure cabin.

10. A posture self-calibrating ocean release method, characterized in that The attitude self-correcting marine release device according to any one of claims 1 to 9 comprises: In the initial state, the brake assembly is in a braking state, so that the reel is braked, the reel does not rotate, the limit block is stuck in the limit housing, and the second cable is wound around the reel; The first cable is released at a uniform speed by a marine winch, so that the release mechanism and the sounding 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 sounding mechanism has entered the seawater, and the control component in the pressure cabin controls the gyro rotor to rotate around its own axis at a set speed; Continue to release the first cable. If the light source collector does not receive the light signal, it is determined that the probe mechanism has reached the water-soil interface. The control component controls the brake 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 separated from the limit shell, and the coil spring stores elastic potential energy. As the first cable is continuously released, when the penetration speed of the feeler mechanism downward 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 recycle the second cable until the limit block is stuck in the limit housing; When the pressure value detected by the pressure sensor remains unchanged within a first preset time period, the control component controls the brake component to switch to a braking state; When the first cable is in a slack state and remains in the slack state for a second set time period, the first cable is recovered by a marine winch, and the release mechanism and the feeler mechanism are synchronously moved upward to be recovered.

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