A release device and method for ocean exploration

Abstract

This invention discloses a release device and method for marine exploration, belonging to the field of marine geological exploration technology. The release device for marine exploration includes a winch, a release assembly, and a penetration assembly. The winch includes a cable with first and second locking buckles spaced apart. The release assembly includes a first pressure chamber and an electromagnetic assembly. Two clamping plates are rotatably mounted on the top of the first pressure chamber, and the electromagnetic assembly controls the two clamping plates to switch between a clamping state and a release state. The penetration assembly includes a second pressure chamber, a probe rod, and a probe connected in sequence. The second pressure chamber is connected to the first pressure chamber, and the second locking buckle is connected to the second pressure chamber. The length of the cable between the first and second locking buckles is greater than the penetration depth of the penetration assembly. The release device and method for marine exploration, using the above-described release device, allows the first locking buckle to be directly retrieved into the cable car during retrieval, improving operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of marine geological exploration technology, and in particular to a release device and method for marine exploration. Background Technology

[0002] The working principle of a free-falling cone penetration test (CBPT) is that the penetrator is released from a certain height and, relying on its own gravity, inserts into the sediment at a certain speed. Under the resistance of the sediment, the speed of the penetrator gradually decreases until it reaches zero. CBPT technology has many applications in marine geological exploration. By releasing the penetrator underwater, it allows the penetrator to fall and penetrate underwater sediment. Data such as acceleration, tip drag, side friction, and pore water pressure obtained during the penetration process are used to acquire the strength parameters of shallow seabed sediments.

[0003] See Figure 1 The existing release device includes a cable 10', a connecting seat 20', a crossbar 30', a counterweight 40', and a probe assembly 50'. The connecting seat 20' is connected to the cable 10', and the crossbar 30' is rotatably connected to the connecting seat 20', with the connecting seat 20' restricting the downward rotation of the crossbar 30'. The probe assembly 50' is attached to one end of the crossbar 30', and the counterweight 40' is attached to the other end. The counterweight 40' is connected to the crossbar 30' via a connecting rope 60'. When the release device moves in seawater, the connecting rope 60' straightens under the action of the counterweight 40', and the crossbar 30' becomes horizontal under the tension at both ends. As it falls, as... Figure 2 As shown, the hammer 40' first contacts the seabed sediment, while the probe component 50' has not yet contacted the sediment. The imbalance of forces at both ends of the crossbar 30' causes the crossbar 30' to tilt. The crossbar 30' rotates relative to the connecting seat 20', thereby opening the mechanical switch to release the probe component 50'. Figure 3 As shown, after the probe component 50' is released, the crossbar 30' tilts again under its own weight. After the probe is completed, during the retrieval, the cable 10' pulls the connecting seat 20' upward, causing the crossbar 30', the counterweight 40', and the probe component 50' to all move upward. When it reaches the position of the cable car, because the crossbar 30' is large, it cannot be retracted into the winch. It is necessary to disassemble the crossbar 30' first, and then pull it upward to retrieve the probe component 50'. Disassembly is time-consuming and labor-intensive, resulting in low work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a release device and method for marine exploration, so as to solve the technical problem of time-consuming and labor-intensive recovery and release devices in the prior art.

[0005] Based on the above concept, the technical solution adopted by this invention is as follows:

[0006] A release device for ocean exploration, comprising:

[0007] A winch, comprising a cable, wherein a first lock and a second lock are provided at intervals on the cable;

[0008] The release assembly includes a first pressure chamber and an electromagnetic assembly. The top of the first pressure chamber is rotatably equipped with two clamping plates. The electromagnetic assembly can control the two clamping plates to switch between a clamping state and a release state. When the two clamping plates are in the clamping state, they clamp the first latch. When the two clamping plates are in the release state, they release the first latch.

[0009] The penetrometer assembly includes a second pressure chamber, a probe rod, and a probe connected in sequence. The second pressure chamber is connected to the first pressure chamber. A pressure sensor is installed on the second pressure chamber. An identification component is installed on the probe. The identification component includes a light source emitter and a light source collector spaced apart along the axial direction of the probe. The light source collector can receive signals from the light source emitter to identify the soil-water interface. A second locking buckle is connected to the second pressure chamber. The length of the cable between the first locking buckle and the second locking buckle is greater than the penetration depth of the penetrometer assembly.

[0010] The electromagnetic component includes an electromagnet and a permanent magnet. The permanent magnet is slidably connected to the first pressure chamber. The electromagnet controls the permanent magnet to move between a locked position and a released position by being energized and de-energized. The permanent magnet in the locked position restricts the two clamping plates to be in a clamped state.

[0011] The clamping piece includes a head and a tail, with a pivot between the head and the tail, allowing the two heads to clamp together or move away from each other. A tension spring is provided between the two tails, and a permanent magnet can prevent the two tails from getting too close to each other.

[0012] The tail section is provided with a first groove, and the first grooves of the two clips are engaged to form a sliding groove, and the permanent magnet in the locking position is inserted into the sliding groove.

[0013] The head is provided with a second groove, and the second grooves of the two clips are engaged to form a locking hole through which the first buckle can pass.

[0014] The first pressure chamber has two support seats spaced apart on its top, forming an installation space between the two support seats. The two clamping pieces are located within the installation space, and the rotating shaft is rotatably connected to the support seats.

[0015] The first pressure chamber has a slide rail on its top, the permanent magnet is slidably connected to the slide rail, and a sealing ring is sandwiched between the permanent magnet and the slide rail.

[0016] The first pressure chamber has an internal accommodating space filled with silicone oil. A pressure-flattening hole is provided on the side of the first pressure chamber, and a rubber membrane is installed inside the pressure-flattening hole.

[0017] The first pressure chamber has a hanging lug at the bottom, and the second pressure chamber has a hook at the top. The hook and the hanging lug are detachably connected by a pin.

[0018] A method for releasing a device for ocean exploration, employing the release device for ocean exploration as described above, includes:

[0019] In the initial state, the two clamping plates are in a clamped state and clamp the first locking buckle;

[0020] The cable is released by the winch, which causes the first locking buckle to drive the release component and the probe component to be lowered simultaneously.

[0021] When the probe moves in the seawater, the light source emitter continuously emits light signals into the seawater. Through the reflection of particles in the seawater, the light source collector can receive the light signals.

[0022] When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, if the light source collector does not receive a light signal, it is determined that the probe component has reached the water-soil interface. The electromagnetic component controls the two clamps to switch to the release state to release the first latch and complete the release.

[0023] The release component and the probe component fall synchronously. If the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, and the pressure value detected by the pressure sensor remains unchanged for a first preset time period, then the penetration is completed.

[0024] The cable is retrieved by the winch, causing the second latch to move upwards synchronously with the release component and the probe component. The first latch is retrieved into the winch, and the probe component can be disassembled when the second latch reaches the winch.

[0025] The beneficial effects of this invention are:

[0026] The release device for marine exploration proposed in this invention uses a first and second locking buckle spaced apart on a cable. When the cable is released, the first locking buckle drives the release component and the probe component to descend synchronously. When the probe component moves in the seawater, the light source emitter continuously emits light signals into the seawater. Through reflection by particles in the seawater, the light source collector can receive the light signals. When the pressure value detected by the pressure sensor is greater than or equal to a first set pressure value, if the light source collector does not receive a light signal, it is determined that the probe component has reached the water-soil interface. The electromagnetic component controls the two clamps to switch to the release state to release the first locking buckle, completing the release. At this time, although the first locking buckle is released, the second locking buckle is still connected to the second pressure-resistant chamber, so the cable and the probe component are not detached. When the pressure value detected by the pressure sensor remains unchanged for a first preset time period, it indicates that the probe component will no longer descend, and the penetration is completed. Since the length of the cable between the first and second locking buckles is greater than the penetration depth of the probe component, the cable is in a slack state and will not generate resistance to the penetration. On the one hand, during release, the release component and the probe component are released simultaneously. The first lock remains on the cable. Due to its small size, the first lock can be retrieved into the winch, eliminating the need for disassembly during retrieval. Retrieval continues until the cable pulls the second lock to the winch position, making retrieval convenient and quick, enhancing safety and efficiency in offshore operations. On the other hand, the release location is determined by identifying the water-soil interface using pressure sensors and a recognition component, significantly saving time, improving work efficiency and operational safety, and ensuring the consistency and accuracy of measurement data. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an existing release device;

[0028] Figure 2 This is a schematic diagram of the existing release device's hammer contacting seabed sediments;

[0029] Figure 3 This is a schematic diagram of the probe component of an existing release device after it has been released;

[0030] Figure 4 This is a schematic diagram of the structure of the release device for ocean exploration provided in an embodiment of the present invention. Figure 1 ;

[0031] Figure 5 yes Figure 4 A partial structural schematic diagram of the release device provided for ocean exploration;

[0032] Figure 6 yes Figure 5 Another structural diagram from a different angle;

[0033] Figure 7This is a schematic diagram of the structure of the release component and the first latch provided in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the release component provided in an embodiment of the present invention, omitting one support base;

[0035] Figure 9 This is a cross-sectional view of the release component provided in an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the clip structure provided in an embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram of the structure of the release device for ocean exploration provided in an embodiment of the present invention. Figure 2 ;

[0038] Figure 12 yes Figure 11 A partial structural schematic diagram of the release device provided for ocean exploration;

[0039] Figure 13 This is a schematic diagram of the release assembly provided in an embodiment of the present invention with the clip in the released state;

[0040] Figure 14 yes Figure 13 A schematic diagram of a portion of the provided release component structure;

[0041] Figure 15 yes Figure 13 A cross-sectional view of the provided release component.

[0042] Figures 1 to 3 middle:

[0043] 10' Cable; 20' Connector; 30' Crossbar; 40' Counterweight; 50' Trigger assembly; 60' Connecting rope;

[0044] Figures 4 to 15 middle:

[0045] 11. Cable; 12. First lock; 13. Second lock;

[0046] 20. Release assembly; 21. First pressure chamber; 211. Accommodation space; 212. Flat pressure hole; 22. Electromagnetic assembly; 221. Electromagnet; 222. Permanent magnet; 223. Sealing ring; 23. Clip; 230. Locking hole; 231. First groove; 232. Second groove; 233. Support rod; 24. Rotating shaft; 25. Hanging lug; 26. Support spring; 27. Limiting rod; 28. Support base; 29. ​​Tension spring;

[0047] 30. Penetration assembly; 31. Second pressure chamber; 32. Probe rod; 33. Probe; 34. Hook;

[0048] 40. Signal transmission line. Detailed Implementation

[0049] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0050] See Figures 4 to 15 This invention provides a release device for ocean exploration, including a winch, a release assembly 20, and a probe assembly 30. The winch includes a cable 11 with a first latch 12 and a second latch 13 spaced apart. The release assembly 20 includes a first pressure chamber 21 and an electromagnetic assembly 22. Two clamping plates 23 are rotatably disposed on the top of the first pressure chamber 21. The electromagnetic assembly 22 can control the two clamping plates 23 to switch between a clamping state and a release state. In the clamping state, the two clamping plates 23 clamp the first latch 12; in the release state, the two clamping plates 23 release the first latch 12. 2; The penetrating component 30 includes a second pressure chamber 31, a probe rod 32, and a probe 33 connected in sequence. The second pressure chamber 31 is connected to the first pressure chamber 21. A pressure sensor is installed on the second pressure chamber 31. An identification component is installed on the probe 33. The identification component includes a light source emitter and a light source collector arranged at intervals along the axial direction of the probe 33. The light source collector can receive the signal from the light source emitter to identify the water-soil interface. The second locking buckle 13 is connected to the second pressure chamber 31. The length of the cable 11 between the first locking buckle 12 and the second locking buckle 13 is greater than the penetration depth of the penetrating component 30.

[0051] By setting a first latch 12 and a second latch 13 at intervals on the cable 11, when the cable 11 is released, the first latch 12 can drive the release component 20 and the probe component 30 to descend synchronously; when the probe component 30 moves in the seawater, the light source emitter continuously emits light signals into the seawater, and the light source collector can receive the light signals through the reflection of particles in the seawater; when the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, if the light source collector does not receive the light signal, it is determined that the probe component 30 has reached the water-soil interface, and the electromagnetic component 22 controls the two The clamp 23 switches to the release state to release the first latch 12, completing the release. At this time, although the first latch 12 is released, the second latch 13 is still connected to the second pressure chamber 31, so the cable 11 is not detached from the probe assembly 30. When the pressure value detected by the pressure sensor remains unchanged within the first preset time, it indicates that the probe assembly 30 will no longer descend, and the penetration is completed. Since the length of the cable 11 between the first latch 12 and the second latch 13 is greater than the penetration depth of the probe assembly 30, the cable 11 is in a slack state and will not generate resistance to the penetration.

[0052] On the one hand, during release, the release component 20 and the probe component 30 are released simultaneously, with the first latch 12 remaining on the cable 11. Because the first latch 12 is small, it can be retrieved into the winch, thus eliminating the need for disassembly during retrieval. Retrieval continues until the cable 11 pulls the second latch 13 to the winch position. This convenient and quick retrieval enhances safety and improves operational efficiency in offshore operations. On the other hand, the release location is determined by identifying the water-soil interface using a pressure sensor and an identification component, significantly saving time, improving work efficiency and operational safety, and ensuring the consistency and accuracy of measurement data.

[0053] In this embodiment, the total length of the release component 20 is less than or equal to 50cm, making it small in size and lightweight. Specifically, the total length of the release component 20 is 40cm, and the width is 17cm.

[0054] Without a pressure sensor to detect pressure values, relying solely on the light source's ability to receive a light signal to determine if the water-soil interface has been reached can lead to misjudgments. For example, if the operator accidentally obstructs the light source emitter, or if the deck blocks the emitter before the release process enters the water, it could result in an erroneous release, compromising safety. Therefore, using a pressure sensor and identification components in conjunction to identify the water-soil interface and determine the release location improves operational safety.

[0055] The winch is equipped with a drum and a drive mechanism for rotating the drum. The cable 11 is wound around the drum, and the cable 11 is released or retrieved by driving the drum to rotate forward or backward through the drive mechanism. The drive mechanism can be a motor and a gear transmission assembly. The motor shaft is equipped with a first gear, and the transmission shaft where the drum is located is equipped with a second gear. The first gear meshes with the second gear.

[0056] In this embodiment, both the first latch 12 and the second latch 13 are conventional U-shaped latches, facilitating the connection of other components. The first latch 12 and the second latch 13 are fixed to the cable 11 to prevent displacement. However, their positions on the cable 11 can be adjusted as needed, meaning they are detachable and can be secured with bolts. The length of the cable 11 between the first latch 12 and the second latch 13 can be set according to actual needs. It is greater than the penetration depth of the probe component 30 to prevent the cable 11 from being stretched taut and providing resistance to the probe component 30, ensuring that the probe component 30 remains in a free-falling state.

[0057] The release assembly 20 includes a controller. Signal transmission between the release assembly 20 and the probe assembly 30 is achieved via a signal transmission line 40. The light source emitter, light source collector, pressure sensor, and electromagnetic assembly 22 are all electrically connected to the controller. The controller can receive signals from the pressure sensor. When the pressure value detected by the pressure sensor is greater than or equal to a first set pressure value, the pressure sensor sends a first signal to the controller. The controller can also receive signals from the light source collector. When the light source collector does not receive a light signal, it sends a second signal to the controller. The controller, after receiving the first signal and then the second signal, controls the electromagnetic assembly 22 to move, causing the two clamps 23 to switch to the release state to release the first latch 12. The controller can be located inside the first pressure chamber 21.

[0058] In the penetrometer assembly 30, the probe 33 is generally cone-shaped and penetrates the sediment vertically. The penetrometer assembly 30 collects various parameters during penetration, including cone tip resistance, sidewall resistance, pore water pressure, and acceleration—these are commonly collected parameters. Accelerometers are typically used to obtain acceleration values, while tilt measurement devices are commonly used to obtain the tilt / angle of the penetrometer assembly 30 during penetration. For example, a three-axis MEMS gyroscope is used to measure whether the penetrometer assembly 30 is in a vertical position. During conventional penetrometer testing, if the penetrometer is in a vertical position, the obtained data is valid; if the penetrometer is tilted, the obtained data is invalid, and penetrometer testing must be repeated.

[0059] The light source emitter and the light source collector are spaced apart along the axial direction of probe 33, so they enter the sediment at different times. If the light source emitter is above the light source collector, the light source collector enters the sediment first, and in this case, the light source collector cannot receive a light signal. Conversely, if the light source collector is above the light source emitter, the light source emitter enters the sediment first, and in this case, the light source collector cannot receive a light signal. In other words, regardless of the positions of the light source emitter and the light source collector, if either of them enters the sediment, the light source collector will not receive a light signal. Both the light source emitter and the light source collector are existing structures, and the light source emitter can be an LED light.

[0060] By identifying the soil-water interface using the identification component, testers no longer need to spend time determining the release position of the probe component 30, greatly saving test time and improving on-site test efficiency. Furthermore, it ensures that the release point of each measuring point is located at the soil-water interface, ensuring that the initial velocity of the probe 33 penetrating the sediment is consistent, guaranteeing the consistency of data between different measuring points, facilitating subsequent data processing, and reducing the possibility of data processing errors.

[0061] The connection between the second pressure chamber 31 and the probe rod 32, and the connection between the probe rod 32 and the probe 33, are existing technologies and can be achieved using threaded connections, which will not be elaborated here. The pressure sensor can be installed at the top of the second pressure chamber 31. It is understood that the penetrometer 30 is subjected to water pressure underwater. As the penetrometer 30 descends deeper, the water pressure increases, and therefore the pressure value detected by the pressure sensor gradually increases. However, when the penetrometer 30 stops moving, the pressure value remains constant. When the pressure value detected by the pressure sensor is greater than or equal to the first preset pressure value, if the light source collector does not receive a light signal, it is determined that the penetrometer 30 has reached the water-soil interface. The electromagnetic component 22 controls the two clamps 23 to switch to the release state to release the first latch 12, completing the release, and recording the pressure value at this time as P1. When the pressure value detected by the pressure sensor remains constant within the first preset time period, it indicates that the penetrometer 30 is no longer descending, and the penetration is complete. The pressure value at this time as P2 is recorded. The penetration depth can be calculated based on the difference between P1 and P2.

[0062] The first pressure chamber 21 and the second pressure chamber 31 are detachably connected, facilitating installation and disassembly. After recovery, the probe component 30 can be disassembled for easy storage and replacement with different probe components 30. Specifically, the bottom of the first pressure chamber 21 is provided with a lug 25, and the top of the second pressure chamber 31 is provided with a hook 34. The hook 34 and the lug 25 are detachably connected by a pin. The second latch 13 is connected to the hook 34 on the second pressure chamber 31. Existing release devices mostly have components such as crossbars and counterweights, with a length of at least 1 meter, making the release device relatively long. In this embodiment, the first pressure chamber 21 is directly connected to the second pressure chamber 31, resulting in a shorter release component 20. The release position is determined by identifying the water-soil interface using a pressure sensor and an identification component, eliminating the need for components such as crossbars and counterweights in existing technologies. This simplifies the structure, improves testing accuracy, makes offshore operations safer, and increases operational efficiency.

[0063] The electromagnetic component 22 includes an electromagnet 221 and a permanent magnet 222. The permanent magnet 222 is slidably connected to the first pressure-resistant chamber 21. The electromagnet 221 controls the movement of the permanent magnet 222 between a locked position and a released position by energizing and de-energizing it. In the locked position, the permanent magnet 222 restricts the two clamping plates 23 to be in a clamped state. The electromagnet 221 is a device that generates electromagnetism when energized, and is a conventional structure. By winding a conductive winding matching its power around the outside of an iron core, this current-carrying coil has magnetism like a magnet, and is called an electromagnet. The electromagnet 221 is magnetic when energized, and the magnetism disappears when the power is de-energized. The magnetism of the electromagnet 221 attracts the permanent magnet 222, allowing the permanent magnet 222 to move from the locked position to the released position. In this embodiment, the permanent magnet 222 is cylindrical.

[0064] A support spring 26 is provided at one end of the permanent magnet 222 in the first pressure chamber 21. Normally, the electromagnet 221 is de-energized, and the permanent magnet 222, under the pushing force of the support spring 26, remains in the locked position, keeping the two clamping plates 23 clamped. When the electromagnet 221 is energized, the magnetic force generated by the electromagnet 221 pulls the permanent magnet 222 from the locked position back to the released position. By energizing and de-energizing the electromagnet 221, and utilizing the attraction between the magnetic poles in conjunction with the support spring 26, the movement of the permanent magnet 222 between the locked and released positions is controlled.

[0065] The support spring 26 has a limiting rod 27 inside. When the permanent magnet 222 is in the released position, one end of the permanent magnet 222 inside the first pressure chamber 21 abuts against the limiting rod 27. The limiting rod 27 can restrict the position of the permanent magnet 222 so that the other end of the permanent magnet 222 is flush with the top of the first pressure chamber 21, thereby ensuring the sealing of the first pressure chamber 21.

[0066] The first pressure chamber 21 forms an internal accommodating space 211, which is filled with silicone oil. A pressure equalization hole 212 is provided on the side of the first pressure chamber 21, and a rubber diaphragm is installed inside the pressure equalization hole 212. When operating in seawater, the seawater pressure acts on the rubber diaphragm. Due to the elasticity of the rubber diaphragm, it can undergo elastic deformation to ensure that the pressure inside and outside the first pressure chamber 21 remains balanced, preventing the pressure difference between the inside and outside of the first pressure chamber 21 from affecting the movement of the permanent magnet 222.

[0067] A slide is provided on the top of the first pressure-resistant chamber 21, and a permanent magnet 222 is slidably connected to the slide. A sealing ring 223 is sandwiched between the permanent magnet 222 and the slide. The slide is used for the sliding of the permanent magnet 222, and the sealing ring 223 makes the interior of the first pressure-resistant chamber 21 a sealed space to prevent seawater from entering and damaging the internal electronic equipment. To ensure the stable sliding of the permanent magnet 222, the slide has a certain extension length.

[0068] The electromagnet 221 is located in the accommodating space 211 inside the first pressure-resistant chamber 21. A battery is installed in the accommodating space 211, which powers the electromagnet 221. A signal transmission interface is located at the bottom of the first pressure-resistant chamber 21, and a signal transmission line 40 is connected to the signal transmission interface. The signal transmission interface also serves as the device's charging port, allowing the battery to be charged.

[0069] The clamping piece 23 includes a head and a tail, with a pivot 24 between them. The two heads can clamp together or move apart, and a tension spring 29 is provided between the two tails. A permanent magnet 222 prevents the two tails from approaching each other. When the permanent magnet 222 is in the locked position, it prevents the two tails from approaching each other, thus keeping them apart and causing the two heads to clamp together. When the permanent magnet 222 moves to the released position, the tension spring 29 acts on the tails of the two clamping pieces 23, causing them to approach each other and the two heads to move apart, thus opening the clamping pieces 23 and releasing them. The tension spring 29 provides tension to the two clamping pieces 23.

[0070] In this embodiment, to avoid interference between the tension spring 29 and the permanent magnet 222, two tension springs 29 are provided. The permanent magnet 222 is located in the middle of the two clamping plates 23, and the two tension springs 29 are distributed on both sides of the permanent magnet 222 and connected to the two clamping plates 23. Each clamping plate 23 is provided with a support rod 233, which passes through the clamping plate 23 and extends perpendicularly to it. The end of the support rod 233 away from the clamping plate 23 is connected to the tension spring 29. Specifically, both ends of the tension spring 29 have limit holes, and the support rod 233 is inserted into the limit holes to achieve a rotatable connection between the clamping plate 23 and the tension spring 29, so that the tension spring 29 will not interfere with the rotation of the clamping plate 23.

[0071] The tail of the clip 23 is provided with a first groove 231. The first grooves 231 of the two clips 23 are engaged to form a sliding groove, and the permanent magnet 222 in the locked position is inserted into the sliding groove. The first groove 231 provides space for the permanent magnet 222. The insertion of the permanent magnet 222 into the sliding groove can limit the clip 23, so that the tails of the two clips 23 will not approach each other.

[0072] The head of the clip 23 is provided with a second groove 232, and the second grooves 232 of the two clips 23 are engaged to form a locking hole 230 through which the first latch 12 can pass. When the two heads are clamped together, the first latch 12 is connected to the clip 23. When the two heads are moved away from each other, the first latch 12 slides out of the locking hole 230, so that the two clips 23 are in a released state.

[0073] The top of the first pressure chamber 21 is provided with two support seats 28 spaced apart, forming an installation space between the two support seats 28. Two clamping plates 23 are located within the installation space, and a rotating shaft 24 is rotatably connected to the support seats 28. The support seats 28 support the clamping plates 23. The support seats 28 can be support plates, specifically straight plates or bent plates, depending on actual needs. The support seats 28 and the first pressure chamber 21 can be locked together with bolts.

[0074] The rotating shaft 24 can be made of bolts. Specifically, through holes are provided on both the support base 28 and the clamping plate 23. The through holes are smooth holes, and the bolts are inserted through each through hole and locked with nuts.

[0075] This invention also provides a method for releasing a device for ocean exploration, employing the aforementioned release device for ocean exploration, comprising:

[0076] In the initial state, the two clips 23 are clamped and clamp the first latch 12;

[0077] The cable 11 is released by the winch, so that the first lock 12 drives the release component 20 and the probe component 30 to be lowered synchronously.

[0078] When the probe component 30 moves in the seawater, the light source emitter continuously emits light signals into the seawater. Through the reflection of particles in the seawater, the light source collector can receive the light signals.

[0079] When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, if the light source collector does not receive the light signal, it is determined that the probe component 30 has reached the water-soil interface. The electromagnetic component 22 controls the two clamps 23 to switch to the release state to release the first latch 12 and complete the release.

[0080] The release component 20 and the probe component 30 fall synchronously. If the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, and the pressure value detected by the pressure sensor remains unchanged for a first preset time period, then the penetration is completed.

[0081] By retrieving cable 11 through the winch, the second latch 13 causes the release component 20 and the probe component 30 to move upward synchronously. The first latch 12 is retrieved into the winch. When the second latch 13 reaches the winch, the probe component 30 can be disassembled.

[0082] The release and retrieval of cable 11 via a winch is achieved by driving the drum to rotate forward or backward via a drive mechanism. The first latch 12 is connected to the release assembly 20, and the second latch 13 is connected to the probe assembly 30. The release assembly 20 and the probe assembly 30 are connected, and during the release of cable 11, the release assembly 20 and the probe assembly 30 are lowered synchronously.

[0083] When the release component 20 is powered on and begins to work, it continuously receives signals from the pressure sensor and the identification component. The controller processes the data in real time and makes corresponding judgments. The release component 20 is connected to the detection component 30 via the signal transmission line 40 and shares a switch on the detection component 30. Before releasing the cable 11 via the winch, turning on the switch will power both the release component 20 and the detection component 30.

[0084] When the light source collector can receive the light signal and the pressure value detected by the pressure sensor gradually increases, it indicates that the probe component 30 is moving in the seawater. At this time, the permanent magnet 222 is in the locked position and the two clips 23 clamp the first lock 12.

[0085] When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, if the light source collector does not receive a light signal, it is determined that the probe component 30 has reached the water-soil interface. The controller will control the battery to supply power to the electromagnetic component 22, so that the electromagnet 221 controls the permanent magnet 222 to move to the release position. The limiting rod 27 inside the first pressure-resistant chamber 21 will limit the movement position of the permanent magnet 222. The two clamps 23 switch to the release state under the action of the tension spring 29 to release the first lock 12 and complete the release. 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 device has been completely submerged in water. When the light source collector does not receive a light signal, it is determined that the probe component 30 has reached the water-soil interface.

[0086] After the two clips 23 release the first latch 12, the second latch 13 is still connected to the second pressure chamber 31, so the cable 11 is not separated from the probe assembly 30. Since the length of the cable 11 between the first latch 12 and the second latch 13 is greater than the penetration depth of the probe assembly 30, the cable 11 is in a slack state and will not cause resistance to penetration.

[0087] When the pressure value detected by the pressure sensor remains unchanged for a first preset time period, it indicates that the penetration component 30 has stopped descending, and the penetration is complete. From the time the penetration component 30 reaches the soil-water interface until the penetration component 30 stops moving, various sensors carried on the probe 33 can detect the required parameters, after which the test is completed.

[0088] By retrieving cable 11 using a winch, the second locking buckle 13 moves the release assembly 20 and the probe assembly 30 upwards simultaneously. The first locking buckle 12 is then retrieved into the winch. When the second locking buckle 13 reaches the winch, the probe assembly 30 can be disassembled. Because the first locking buckle is small and can be retrieved into the winch, disassembly is not required during retrieval until the cable pulls the second locking buckle to the winch position. This retrieval is convenient and quick, making offshore operations safer and improving operational efficiency.

[0089] When the light source collector receives a light signal, indicating that the probe assembly 30 has been exposed to sediment and re-exposed to seawater, the controller will cut off power from the battery to the electromagnetic component 22. However, due to the tension spring 29 acting on the two clamping plates 23, the tails of the two clamping plates 23 move closer together, and the tails of the clamping plates 23 block the permanent magnet 222. At this time, the permanent magnet 222 cannot return to the locked position. Continuing to pull upwards, the first latch 12 is retracted into the winch. When the second latch 13 reaches the winch, the entire assembly can be pulled back to the deck by the winch. At this time, the probe assembly 30 can be disassembled.

[0090] Before the next probe, the probe assembly 30 is installed, and part of the cable 11 is released to connect the two clips 23 of the release assembly 20 to the first latch 12. Specifically, the operator can insert the first latch 12 between the two clips 23 and pinch the heads of the two clips 23 by hand, so that the tails of the two clips 23 move away from each other. The permanent magnet 222 will be pushed by the supporting spring 26 below, and will return to the locked position. At this time, the two clips 23 can clamp the first latch 12.

[0091] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A release device for ocean exploration, characterized in that, include: The winch includes a cable (11) on which a first lock (12) and a second lock (13) are provided at intervals; The release assembly (20) includes a first pressure chamber (21) and an electromagnetic assembly (22). The top of the first pressure chamber (21) is rotatably provided with two clamping pieces (23). The electromagnetic assembly (22) can control the two clamping pieces (23) to switch between a clamping state and a release state. When the two clamping pieces (23) are in the clamping state, they clamp the first latch (12). When the two clamping pieces (23) are in the release state, they release the first latch (12). The penetrating component (30) includes a second pressure chamber (31), a probe rod (32), and a probe (33) connected in sequence. The second pressure chamber (31) is connected to the first pressure chamber (21). A pressure sensor is provided on the second pressure chamber (31). An identification component is provided on the probe (33). The identification component includes a light source emitter and a light source collector arranged at intervals along the axial direction of the probe (33). The light source collector can receive the signal from the light source emitter to identify the water-soil interface. The second latch (13) is connected to the second pressure chamber (31). The length of the cable (11) between the first latch (12) and the second latch (13) is greater than the penetration depth of the penetrating component (30).

2. The release device for ocean exploration according to claim 1, characterized in that, The electromagnetic component (22) includes an electromagnet (221) and a permanent magnet (222). The permanent magnet (222) is slidably connected to the first pressure chamber (21). The electromagnet (221) controls the permanent magnet (222) to move between a locked position and a released position by being energized and de-energized. The permanent magnet (222) in the locked position restricts the two clamping pieces (23) to be in a clamped state.

3. The release device for ocean exploration according to claim 2, characterized in that, The clamp (23) includes a head and a tail, and a pivot (24) is provided between the head and the tail. The two heads can clamp each other or move away from each other. A tension spring (29) is provided between the two tails. The permanent magnet (222) can restrict the two tails from getting close to each other.

4. The release device for ocean exploration according to claim 3, characterized in that, The tail is provided with a first groove (231), and the first grooves (231) of the two clips (23) are engaged to form a sliding groove, and the permanent magnet (222) in the locked position is inserted into the sliding groove.

5. The release device for ocean exploration according to claim 3, characterized in that, The head is provided with a second groove (232), and the second grooves (232) of the two clips (23) are engaged to form a locking hole (230) through which the first buckle (12) can pass.

6. The release device for ocean exploration according to claim 3, characterized in that, The top of the first pressure chamber (21) is provided with two support seats (28) spaced apart, and an installation space is formed between the two support seats (28). The two clamps (23) are located in the installation space, and the rotating shaft (24) is rotatably connected to the support seats (28).

7. The release device for ocean exploration according to claim 2, characterized in that, The top of the first pressure chamber (21) is provided with a slide, the permanent magnet (222) is slidably connected to the slide, and a sealing ring (223) is sandwiched between the permanent magnet (222) and the slide.

8. The release device for ocean exploration according to claim 1, characterized in that, The first pressure chamber (21) has an internal accommodating space (211) filled with silicone oil. The side of the first pressure chamber (21) has a pressure-flattening hole (212) with a rubber membrane inside.

9. The release device for ocean exploration according to claim 1, characterized in that, The bottom of the first pressure chamber (21) is provided with a hanging lug (25), and the top of the second pressure chamber (31) is provided with a hook (34). The hook (34) and the hanging lug (25) are detachably connected by a pin.

10. A release method for ocean exploration, characterized in that, The release device for ocean exploration according to any one of claims 1-9 comprises: In the initial state, the two clips (23) are clamped and clamp the first latch (12); The cable (11) is released by the winch, so that the first lock (12) drives the release component (20) and the probe component (30) to be lowered synchronously. When the probe component (30) moves in the seawater, the light source emitter continuously emits light signals into the seawater. Through the reflection of particles in the seawater, the light source collector can receive the light signals. When the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, if the light source collector does not receive the light signal, it is determined that the probe component (30) has reached the water-soil interface, and the electromagnetic component (22) controls the two clamps (23) to switch to the release state to release the first latch (12) and complete the release. The release component (20) and the probe component (30) fall synchronously. If the pressure value detected by the pressure sensor is greater than or equal to the first set pressure value, and the pressure value detected by the pressure sensor remains unchanged for a first preset time period, then the penetration is completed. By retrieving the cable (11) through the winch, the second latch (13) causes the release component (20) and the probe component (30) to move upward synchronously. The first latch (12) is retrieved into the winch. When the second latch (13) reaches the winch, the probe component (30) can be disassembled.

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