An acoustic static penetrometer for submarine sediment layers

Abstract

The present invention discloses an acoustic static penetration device for a seabed sediment layer, comprising a support assembly, the support assembly comprising a shell, a plurality of counterweights are fixedly connected to the outside of the shell, and a plurality of hydraulic cylinders are fixedly connected to the bottom surface of the shell; a measuring assembly comprises a first toggle mechanism, two sets of second toggle mechanisms, a probe rod, and an extension mechanism, a first through hole is provided on the shell, the probe rod extends out of the shell through the first through hole, an acoustic receiving section and a probe are fixedly connected to the lower end of the probe rod, a mounting plate is fixedly connected to the inside of the shell, an extension mechanism is movably connected to the upper end of the probe rod, the first toggle mechanism is transmission-connected to the probe rod, a partition is fixedly connected to the inside of the shell, an acoustic transmitting mechanism is fixedly connected to the shell, and a depth sensor is arranged in the probe rod. When the present invention is used, the probe rod can be firstly made to enter the seabed by retracting the hydraulic cylinder, and then the probe rod can be moved to continue to extend, and the depth of the probe rod entering the seabed sediment layer can also be adjusted by the extension mechanism, so that the use is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of marine geological surveys, and particularly to an acoustic static penetrometer for submarine sediment layers. Background Art

[0002] The submarine sediment layer is the general term for submarine sediments formed by various sedimentation processes at the bottom of the ocean. These sediments include rock debris, organic remains, minerals, etc., which accumulate on the seabed to form a layered structure. By using the propagation and reflection characteristics of sound waves in the submarine sediment layer, the thickness of the sediment layer can be measured, and its morphology and distribution can be depicted. By analyzing the sound wave signals, the physical properties of the sediment layer can be inferred. Conducting static penetrometry on the submarine sediment layer can accurately analyze the physical properties of deep-sea strata, providing important original basis for the construction of offshore oil and gas development platforms and oil pipelines.

[0003] A patent with the publication number CN116537143A discloses a multi-parameter in-situ detection system for submarine sediment layers, including a base bracket. A driving mechanism is fixedly installed in the middle of the upper end of the base bracket, a guiding mechanism is fixedly installed at the upper end of the base bracket, a detection mechanism is inserted and connected in the guiding mechanism, a probe rod stress ring is fixedly connected to the upper end of the detection mechanism. The detection mechanism includes a probe rod, a probe rod sealing stress joint is fixedly installed at the upper end of the probe rod, the probe rod sealing stress joint is fixedly connected to the probe rod stress ring, and the lower end of the probe rod is threadedly connected with a probe head main body.

[0004] When the above device works, the probe rod and the probe head main body are inserted into the submarine sediment layer for measurement. However, the length of the probe rod is relatively fixed, which is inconvenient for adjusting the depth of insertion into the submarine sediment layer, and there is a situation where the adjustment range is small. Therefore, an acoustic static penetrometer for submarine sediment layers is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an acoustic static penetrometer for submarine sediment layers to solve the above problems existing in the prior art and make it more convenient to adjust the depth when the probe rod is inserted into the submarine sediment layer.

[0006] To achieve the above purpose, the present invention provides the following solution: The present invention provides an acoustic static penetrometer for submarine sediment layers, including:

[0007] A support assembly, the support assembly includes a housing, several counterweight blocks are fixedly connected to the outside of the housing, and several hydraulic cylinders are fixedly connected to the bottom surface of the housing;

[0008] A measuring component, the measuring component includes a first toggle mechanism, two groups of second toggle mechanisms, a probe rod, and an extension mechanism. The first toggle mechanism is fixedly connected in the shell, a first through hole is opened on the shell, the probe rod extends out of the shell through the first through hole, the lower end of the probe rod is fixedly connected with an acoustic receiving section and a probe, a mounting plate is fixedly connected in the shell, the second toggle mechanism is arranged between the mounting plate and the shell, the upper end of the probe rod is movably connected with an extension mechanism, the first toggle mechanism is transmission-connected to the probe rod, the second toggle mechanism is transmission-connected to the extension mechanism, a partition is fixedly connected in the shell, a hydraulic pump station and an electronic cabin are fixedly connected to the partition, an acoustic transmitting mechanism is fixedly connected to the shell, the acoustic receiving section, the probe and the acoustic transmitting mechanism are all electrically connected to the electronic cabin, and a depth sensor is arranged in the probe.

[0009] Preferably, the extension mechanism includes a plurality of half-tube one and a plurality of half-tube two, the half-tube one and the half-tube two are detachably connected, the plurality of half-tube one are rotatably connected, the plurality of half-tube two are rotatably connected, the half-tube one and the half-tube two are both movably connected to the probe rod, and two groups of the second toggle mechanisms are transmission-connected to the half-tube one and the half-tube two, respectively.

[0010] Preferably, the first toggle mechanism includes a first motor and two first rotating shafts, a plurality of first support plates are fixedly connected in the outer shell, the first rotating shaft is rotatably connected between the two first support plates, the two first rotating shafts are located on both sides of the probe rod, a toggle gear plate is fixedly connected to the first rotating shaft, the toggle gear plate is transmission connected to the probe rod, the first motor is fixedly connected in the outer shell, and the first motor is transmission connected to the first rotating shaft.

[0011] Preferably, the second toggle mechanism includes a second motor, the second motor is fixedly connected to the mounting plate, a plurality of second support plates are fixedly connected to the partition, the second support plate is rotatably connected to a second rotating shaft, the second rotating shaft is fixedly connected to the toggle gear plate, and the toggle gear plates on the two second rotating shafts are respectively transmission-connected to the half-tube one and the half-tube two.

[0012] Preferably, the shifting gear disc includes a disc body, a plurality of cavities are formed in the disc body, the cavities are connected to the outside through mounting holes, shifting teeth are inserted into the mounting holes, a limiting block is placed in the cavity, the shifting teeth are fixedly connected to the limiting block, a spring is fixedly connected in the cavity, the spring abuts against the limiting block, grooves are formed on the probe rod, the half-tube one and the half-tube two, and the shifting teeth are adapted to the grooves.

[0013] Preferably, a first gear is fixedly connected to the output end of the first motor, second gears are fixedly connected to both of the first rotating shafts, the two second gears are meshed with each other, the first gear is meshed with the second gears, a third gear is fixedly connected to the output end of the second motor, a fourth gear is fixedly connected to the second rotating shaft, and the third gear is meshed with the fourth gear.

[0014] Preferably, a second through hole is formed in the mounting plate, a first guide tube is fixedly connected in the second through hole, a tightening tube is fixedly connected to the first guide tube, two guide rollers are fixedly connected in the housing, the two guide rollers are respectively abutted against the first half tube and the second half tube, and the first half tube and the second half tube are located in the tightening tube.

[0015] Preferably, a plurality of magnets I are fixedly connected to the first half tube, a plurality of magnets II are fixedly connected to the second half tube, the magnets I and the magnets II attract each other, a clamping block is fixedly connected to the first half tube, a plurality of grooves are formed in the second half tube, and the clamping block is adapted to the grooves.

[0016] Preferably, the acoustic receiving section includes a connecting pipe which is detachably connected to the probe rod, a plurality of sound transmission holes are formed in the connecting pipe, a plurality of acoustic receiving transducers are fixedly connected in the connecting pipe, the acoustic transmitting mechanism includes an acoustic transmitting transducer which is fixedly connected to the bottom surface of the housing, a through hole is formed in the probe rod, a cable is passed through the through hole, the electronic cabin is electrically connected to the acoustic receiving transducers and the probe head through the cable, a plurality of through holes are formed in the partition plate, the cable passes through the through holes, a reel is installed on the partition plate, a coil spring is arranged in the reel, and the cable is wound on the reel.

[0017] Preferably, a plurality of connecting rods are fixedly connected to the housing, suspension rings are fixedly connected to the connecting rods, and a backing plate is fixedly connected to the output end of the hydraulic cylinder.

[0018] The present invention discloses the following technical effects: the present invention puts the device into the target seabed area through a rope, the rope is connected to the shell, and a plurality of hydraulic cylinders can support the device; the probe extends out of the shell, and when the measurement starts, the hydraulic cylinder first shrinks, and after the hydraulic cylinder shrinks, the acoustic receiving section and the probe fixedly connected to the probe gradually enter the seabed sediment layer, and the probe needs to continue to extend into the seabed, and the first toggle mechanism will toggle the probe to continue to extend into the seabed sediment layer, and at the same time, the extension mechanism connected to the probe will continue to move with the probe, and the second toggle mechanism will toggle the extension mechanism to move, so that the extension mechanism moves more easily, and the hydraulic pump station will provide hydraulic pressure to the hydraulic cylinder, and when the hydraulic cylinder is fully retracted, the acoustic transmitting mechanism will contact the seabed, and the acoustic transmitting mechanism will emit sound waves, and the acoustic receiving section in the seabed sediment layer will receive the sound waves, and the electronic cabin can receive and send data. When the present invention is used, the probe can be firstly made to enter the seabed by shrinking the hydraulic cylinder, and then the probe is moved to continue to extend, and the depth of the probe entering the seabed sediment layer can be adjusted by the extension mechanism, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the structure of the acoustic static penetration device for seabed sediment layer of the present invention;

[0021] Figure 2 for Figure 1 A partial enlarged view of a;

[0022] Figure 3 for Figure 1 A partial enlarged view of middle b;

[0023] Figure 4 for Figure 1 A partial enlarged view of middle c;

[0024] Figure 5 It is a top view of the first motor, the probe rod and the disk body of the present invention;

[0025] Figure 6 It is a side view of the second motor, the fourth gear and the disc body of the present invention;

[0026] Figure 7 The half-pipe structure of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 8 The half-pipe structure of the present invention is shown in FIG. Figure 2 ;

[0028] Among them, 1. housing; 2. counterweight; 3. hydraulic cylinder; 4. sounding rod; 5. acoustic receiving section; 6. probe; 7. mounting plate; 8. partition; 9. hydraulic pump station; 10. electronic cabin; 11. half pipe one; 12. half pipe two; 13. first motor; 14. first rotating shaft; 15. first support plate; 16. second motor; 17. second support plate; 18. second rotating shaft; 19. disc body; 20. cavity; 21. tooth segment; 22. limit block; 23. spring; 24. groove; 25. first gear; 26. second gear; 27. third gear; 28. fourth gear; 29. first guide pipe; 30. tightening pipe; 31. guide roller; 32. magnet one; 33. magnet two; 34. clamping block; 35. groove; 36. connecting pipe; 37. sound transmission hole; 38. acoustic receiving transducer; 39. acoustic transmitting transducer; 40. cable; 41. retractor; 42. connecting rod; 43. lifting ring; 44. second guide pipe; 45. limit frame; 46. fixed block. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0031] Embodiment 1

[0032] Referring to Figures 1-8 , the present invention provides an acoustic static penetrometer for submarine sediment layers, including:

[0033] A support assembly, the support assembly includes a housing 1, a plurality of counterweights 2 are fixedly connected to the outside of the housing 1, and a plurality of hydraulic cylinders 3 are fixedly connected to the bottom surface of the housing 1;

[0034] A measuring component, which includes a first toggle mechanism, two groups of second toggle mechanisms, a probe rod 4, and an extension mechanism. The first toggle mechanism is fixedly connected in the shell 1. A first through hole is opened on the shell 1. The probe rod 4 extends out of the shell 1 through the first through hole. The lower end of the probe rod 4 is fixedly connected with an acoustic receiving section 5 and a probe 6. A mounting plate 7 is fixedly connected in the shell 1. The second toggle mechanism is arranged between the mounting plate 7 and the shell 1. The upper end of the probe rod 4 is movably connected with the extension mechanism. The first toggle mechanism is transmission-connected to the probe rod 4. The second toggle mechanism is transmission-connected to the extension mechanism. A partition 8 is fixedly connected in the shell 1. A hydraulic pump station 9 and an electronic cabin 10 are fixedly connected to the partition 8. An acoustic transmitting mechanism is fixedly connected to the shell 1. The acoustic receiving section 5, the probe 6 and the acoustic transmitting mechanism are all electrically connected to the electronic cabin 10. A depth sensor is arranged in the probe 6.

[0035] When in use, the device is transported to the target area by a ship, and is placed in the target seabed area by a rope, which is connected to the outer shell 1. Several hydraulic cylinders 3 can support the device; the probe rod 4 extends out of the outer shell 1. When measuring, the hydraulic cylinder 3 contracts first. After the hydraulic cylinder 3 contracts, the acoustic receiving section 5 and the probe 6 fixedly connected to the probe rod 4 will gradually enter the seabed sediment layer. If it needs to continue to extend, the first toggle mechanism will toggle the probe rod 4 to continue to extend into the seabed sediment layer. At the same time, the extension mechanism connected to the probe rod 4 will continue to move with the probe rod 4. The second toggle mechanism will toggle the extension mechanism to move, making it easier to move the extension mechanism. The hydraulic pump station 9 will provide hydraulic pressure to the hydraulic cylinder 3. When the hydraulic cylinder 3 is fully contracted, the acoustic transmitting mechanism will contact the seabed, and the acoustic transmitting mechanism will emit sound waves. The acoustic receiving section 5 in the seabed sediment layer will receive the sound waves. The probe 6 is also provided with a resistance sensor, a temperature sensor, a conductivity sensor, etc. The electronic cabin 10 can receive and send data for transmitting data to the ship. The probe 6 adopts the existing technology.

[0036] A further optimized solution is provided, wherein the extension mechanism comprises a plurality of half-tube ones 11 and a plurality of half-tube twos 12, wherein the half-tube one 11 and the half-tube two 12 are detachably connected, the plurality of half-tube one 11 are rotationally connected, the plurality of half-tube two 12 are rotationally connected, the half-tube one 11 and the half-tube two 12 are both movably connected to the probe rod 4, and the two sets of second toggle mechanisms are transmission-connected to the half-tube one 11 and the half-tube two 12 respectively.

[0037] The half tube 11 and the half tube 2 12 can form a circular tube shape to extend the insertion depth of the probe 4. Two adjacent half tubes 11 can rotate, and two adjacent half tubes 2 12 can also rotate. Both the half tube 11 and the half tube 12 move under the toggle of the second toggle mechanism.

[0038] A further optimized solution is that the first toggle mechanism includes a first motor 13 and two first rotating shafts 14. A plurality of first support plates 15 are fixedly connected in the outer shell 1. The first rotating shaft 14 is rotatably connected between the two first support plates 15. The two first rotating shafts 14 are located on both sides of the probe rod 4. A toggle gear plate is fixedly connected to the first rotating shaft 14. The toggle gear plate is transmission connected to the probe rod 4. The first motor 13 is fixedly connected in the outer shell 1, and the first motor 13 is transmission connected to the first rotating shaft 14.

[0039] The first motor 13 drives the first rotating shaft 14 to rotate, the first rotating shaft 14 drives the shifting gear plate to rotate, the shifting gear plate drives the probe rod 4 to move, and shifting gear plates are arranged on both sides of the probe rod 4, which makes the probe rod 4 more stable during movement.

[0040] A further optimized solution is that the second toggle mechanism includes a second motor 16, the second motor 16 is fixedly connected to the mounting plate 7, a plurality of second support plates 17 are fixedly connected to the partition plate 8, the second support plate 17 is rotatably connected to a second rotating shaft 18, a toggle gear plate is fixedly connected to the second rotating shaft 18, and the toggle gear plates on the two second rotating shafts 18 are respectively connected to the half pipe 11 and the half pipe 2 12 in transmission.

[0041] The second motor 16 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the shifting gear plate to rotate, the shifting gear plate drives the half pipe 11 or the half pipe 2 12 to move, the two shifting gear plates rotate at the same time, so that the half pipe 11 and the half pipe 2 12 move at the same time, which is convenient for separation or combination.

[0042] A further optimized solution is that the shifting gear disc includes a disc body 19, a plurality of cavities 20 are opened in the disc body 19, the cavities 20 are connected to the outside through mounting holes, shift teeth 21 are inserted into the mounting holes, a limit block 22 is placed in the cavity 20, the shift teeth 21 are fixedly connected to the limit block 22, a spring 23 is fixedly connected in the cavity 20, the spring 23 abuts against the limit block 22, grooves 24 are opened on the probe rod 4, half pipe 11 and half pipe 2 12, and the shift teeth 21 are adapted to the grooves 24.

[0043] The shifting tooth 21 extends out of the disc body 19, and the extended part of the shifting tooth 21 is matched with the groove 24. The groove 24 is provided on the probe rod 4, the half pipe 1 11 and the half pipe 2 12. When the probe rod 4 is completely moved out of the housing 1, the shifting tooth discs on both sides of the probe rod 4 can also shift the half pipe 11 and the half pipe 2 12 to move. In the process of the probe rod 4 moving downward, there is no groove 24 at the position where the probe rod 4 is connected to the half pipe 11. After being squeezed, the shifting tooth 21 can be retracted into the mounting hole. At this time, the spring 23 is compressed, and the shifting tooth 21 will extend out of the mounting hole again at the position where the groove 24 is provided. Similarly, at other positions where there is no groove 24, the shifting tooth will also be retracted into the mounting hole.

[0044] For a further optimized solution, a first gear 25 is fixedly connected to the output end of the first motor 13. Second gears 26 are fixedly connected to both of the two first rotating shafts 14. The two second gears 26 are meshed with each other. The first gear 25 is meshed with the second gears 26. A third gear 27 is fixedly connected to the output end of the second motor 16. A fourth gear 28 is fixedly connected to the second rotating shaft 18. The third gear 27 is meshed with the fourth gear 28.

[0045] The first motor 13 drives the first gear 25 to rotate. The first gear 25 drives the second gears 26 to rotate. The two second gears 26 rotate simultaneously, which drives the two second rotating shafts 18 to rotate. The second motor 16 drives the third gear 27 to rotate. The third gear 27 drives the fourth gear 28 to rotate.

[0046] For a further optimized solution, a second through hole is formed in the mounting plate 7. A first guide tube 29 is fixedly connected in the second through hole. A tightening tube 30 is fixedly connected to the first guide tube 29. Two guide rollers 31 are fixedly connected in the housing 1. The two guide rollers 31 are respectively abutted against the first half tube 11 and the second half tube 12. The first half tube 11 and the second half tube 12 are located inside the tightening tube 30.

[0047] The tightening tube 30 is used to gradually gather the first half tube 11 and the second half tube 12. When the first half tube 11 and the second half tube 12 enter the first guide tube 29, they will be completely combined together, so that the probe rod 4 is extended. The guide rollers 31 can provide certain support.

[0048] For a further optimized solution, a number of first magnets 32 are fixedly connected to the first half tube 11. A number of second magnets 33 are fixedly connected to the second half tube 12. The first magnets 32 and the second magnets 33 attract each other. A clamping block 34 is fixedly connected to the first half tube 11. A number of grooves 35 are formed in the second half tube 12. The clamping block 34 is adapted to the grooves 35.

[0049] When the first half tube 11 and the second half tube 12 approach each other, the first magnets 32 and the second magnets 33 will attract each other, making it easier for the first half tube 11 and the second half tube 12 to fit together. The clamping block 34 will enter the grooves 35, making the combination of the first half tube 11 and the second half tube 12 more firm. The clamping block 34 and the grooves 35 will be opened under the action of an external force, facilitating the separation of the first half tube 11 and the second half tube 12 when the probe rod 4 is retracted.

[0050] A further optimized solution is that the acoustic receiving section 5 includes a connecting tube 36, which is detachably connected to the probe rod 4, and a plurality of sound-permeable holes 37 are provided on the connecting tube 36. A plurality of acoustic receiving transducers 38 are fixedly connected in the connecting tube 36. The acoustic transmitting mechanism includes an acoustic transmitting transducer 39, and the acoustic transmitting transducer 39 is fixedly connected to the bottom surface of the outer shell 1. A through hole is provided in the probe rod 4, and a cable 40 is passed through the through hole. The electronic cabin 10 is electrically connected to the acoustic receiving transducer 38 and the probe 6 through the cable 40. A plurality of through holes are provided on the partition 8, and the cable 40 passes through the through holes. A reel 41 is installed on the partition 8, and a winding spring is provided in the reel 41, and the cable 40 is wound around the reel 41.

[0051] The connecting pipe 36 and the probe rod 4 are connected together by threads, and the sound-permeable hole 37 facilitates the transmission of sound waves to the acoustic receiving transducer 38. The acoustic transmitting transducer 39 transmits sound waves. The acoustic receiving transducer 38 is used to receive sound waves. The cable 40 can pass between the probe rod 4 and the half pipe 11 and the half pipe 2 12. There are several through holes on the partition 8 to facilitate the passage of the cable 40 or other pipelines. The retractor 41 facilitates the reeling of the cable 40. The winding spring gives the retractor 41 a reeling force. The cable 40 can be pulled apart when it is under force, and can be reeled in when it is not under force.

[0052] According to a further optimized solution, a plurality of connecting rods 42 are fixedly connected to the housing 1, a lifting ring 43 is fixedly connected to the connecting rod 42, and a pad is fixedly connected to the output end of the hydraulic cylinder 3.

[0053] The lifting ring 43 is used to connect with the rope of the ship. The lifting ring 43 and the connecting rod 42 are convenient for lifting the device, and the pad is convenient for landing the device.

[0054] The usage method of this device is as follows: lift this device to the target area through the rope on the ship, and then gradually release it to the seabed area. After it is placed on the seabed, the backing plate will contact first. Send a command to the electronic cabin 10 through the equipment on the ship to control the contraction of the hydraulic cylinder 3. After the hydraulic cylinder 3 contracts, the probe 6 connected to the lowermost end of the probe rod 4 will first enter the seabed sediment layer. There are depth sensors, resistance sensors, temperature sensors, conductivity sensors, etc. on the probe 6, which are convenient for measurement. When the connecting pipe 36 enters the seabed sediment layer, acoustic waves can be emitted through the acoustic emission transducer 39, and the acoustic receiving transducer 38 is used to receive the acoustic waves. The probe rod 4 can be made to enter the seabed sediment layer at different depths for measurement as needed. The first motor 13 drives the first gear 25 to rotate, the first gear 25 drives the second gear 26 to rotate. When the two second gears 26 rotate simultaneously, they will drive the two second rotating shafts 18 to rotate. The disc 19 on the second rotating shaft 18 will also rotate, and the dial teeth 21 will push the probe rod 4 to move continuously. During the process of the probe rod 4 continuously entering the seabed sediment layer, the half pipe one 11 and the half pipe two 12 also move under the action of the second motor 16 and gradually enter the tightening pipe 30. When the half pipe one 11 and the half pipe two 12 enter the first guiding pipe 29, the magnet one 32 and the magnet two 33 will attract each other, making it easier for the half pipe one 11 and the half pipe two 12 to fit together. The clamping block 34 will enter the groove 35, making the combination of the half pipe one 11 and the half pipe two 12 more firm. When the probe rod 4 is retracted, the first motor 13 and the second motor 16 rotate in the reverse direction, causing the probe rod 4 to move upward, and at the same time, the half pipe one 11 and the half pipe two 12 also move upward, and the hydraulic cylinder 3 extends out.

[0055] Embodiment 2

[0056] Refer to Figures 1-8 In this embodiment, two second guiding pipes 44 are fixedly connected inside the housing 1. The half pipe one 11 and the half pipe two 12 are located inside the second guiding pipes 44. A plurality of limiting frames 45 are fixedly connected to the bottom surface of the partition plate 8. The second guiding pipes 44 are fixedly connected to the limiting frames 45. The half pipe one 11 and the half pipe two 12 are both located inside the limiting frames 45. Fixed blocks 46 are rotatably connected to the half pipe one 11 and the half pipe two 12 at the end. The second guiding pipes 44 facilitate the movement of the half pipe one 11 and the half pipe two 12, and the limiting frames 45 keep the half pipe one 11 and the half pipe two 12 in a stable position. The dialing tooth disc is located between the two limiting frames 45.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0058] The embodiments described above are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit of the present invention's design, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An acoustic static penetration testing device for submarine sediment layers, characterized in that, include: A support assembly, the support assembly comprising a housing (1), a plurality of counterweights (2) being fixedly connected to the outside of the housing (1), and a plurality of hydraulic cylinders (3) being fixedly connected to the bottom surface of the housing (1); A measuring assembly, the measuring assembly comprising a first toggle mechanism, two sets of second toggle mechanisms, a probe rod (4), and an extension mechanism, the first toggle mechanism being fixedly connected in the housing (1), the housing (1) being provided with a first through hole, the probe rod (4) extending out of the housing (1) through the first through hole, the lower end of the probe rod (4) being fixedly connected to an acoustic receiving section (5) and a probe (6), the housing (1) being fixedly connected to a mounting plate (7), the second toggle mechanism being arranged between the mounting plate (7) and the housing (1), the probe rod (4) extending out of the housing (1) through the first through hole, the lower end of the probe rod (4) being fixedly connected to an acoustic receiving section (5) and a probe (6), the housing (1) being fixedly connected to a mounting plate (7), the second toggle mechanism being arranged between the mounting plate (7) and the housing (1), The upper end of the rod (4) is movably connected to an extension mechanism, the first toggle mechanism is transmission-connected to the probe rod (4), the second toggle mechanism is transmission-connected to the extension mechanism, a partition (8) is fixedly connected inside the housing (1), a hydraulic pump station (9) and an electronic cabin (10) are fixedly connected to the partition (8), an acoustic transmitting mechanism is fixedly connected to the housing (1), the acoustic receiving section (5), the probe (6) and the acoustic transmitting mechanism are all electrically connected to the electronic cabin (10), and a depth sensor is provided in the probe (6); The extension mechanism comprises a plurality of half-tubes (11) and a plurality of half-tubes (12), wherein the half-tubes (11) and the half-tubes (12) are detachably connected, the half-tubes (11) are rotatably connected to each other, and the half-tubes (12) are rotatably connected to each other, and the half-tubes (11) and the half-tubes (12) are both movably connected to the probe rod (4), and two sets of the second toggle mechanisms are respectively transmission-connected to the half-tubes (11) and the half-tubes (12); The first toggle mechanism comprises a first motor (13) and two first rotating shafts (14); a plurality of first support plates (15) are fixedly connected in the housing (1); the first rotating shaft (14) is rotatably connected between the two first support plates (15); the two first rotating shafts (14) are located on both sides of the probe rod (4); a toggle gear disc is fixedly connected to the first rotating shaft (14); the toggle gear disc is transmission-connected to the probe rod (4); the first motor (13) is fixedly connected in the housing (1); and the first motor (13) is transmission-connected to the first rotating shaft (14); The second toggle mechanism comprises a second motor (16), the second motor (16) is fixedly connected to the mounting plate (7), a plurality of second support plates (17) are fixedly connected to the partition plate (8), the second support plate (17) is rotatably connected to a second rotating shaft (18), the second rotating shaft (18) is fixedly connected to the toggle gear plate, and the toggle gear plates on the two second rotating shafts (18) are respectively transmission-connected to the half pipe one (11) and the half pipe two (12).

2. The acoustic static penetration testing device for seabed sediment layers according to claim 1, wherein: The output end of the first motor (13) is fixedly connected to a first gear (25), the two first rotating shafts (14) are fixedly connected to a second gear (26), the two second gears (26) are meshed, the first gear (25) and the second gear (26) are meshed, the output end of the second motor (16) is fixedly connected to a third gear (27), the second rotating shaft (18) is fixedly connected to a fourth gear (28), the third gear (27) and the fourth gear (28) are meshed.

3. The acoustic static penetration testing device for submarine sediment layer according to claim 1, characterized in that: The mounting plate (7) is provided with a second through hole, a first guide tube (29) is fixedly connected in the second through hole, a tightening tube (30) is fixedly connected to the first guide tube (29), two guide rollers (31) are fixedly connected in the housing (1), the two guide rollers (31) are respectively in contact with the first half tube (11) and the second half tube (12), and the first half tube (11) and the second half tube (12) are located in the tightening tube (30).

4. An acoustic static penetration testing device for submarine sediment layers according to claim 1, characterized in that: A plurality of first magnets (32) are fixedly connected to the first half pipe (11), a plurality of second magnets (33) are fixedly connected to the second half pipe (12), the first magnets (32) and the second magnets (33) attract each other, a clamping block (34) is fixedly connected to the first half pipe (11), a plurality of grooves (35) are formed on the second half pipe (12), and the clamping block (34) is matched with the grooves (35).

5. The acoustic static penetration testing device for submarine sediment layers according to claim 1, characterized in that: The acoustic receiving section (5) comprises a connecting tube (36), the connecting tube (36) being detachably connected to the probe rod (4), the connecting tube (36) being provided with a plurality of sound-permeable holes (37), the connecting tube (36) being fixedly connected with a plurality of acoustic receiving transducers (38), the acoustic transmitting mechanism comprising an acoustic transmitting transducer (39), the acoustic transmitting transducer (39) being fixedly connected to the bottom surface of the housing (1), the probe rod (4) being provided with a through hole, the through hole being provided with a cable (40), the electronic cabin (10) being electrically connected to the acoustic receiving transducer (38) and the probe (6) via the cable (40), the partition plate (8) being provided with a plurality of through holes, the cable (40) being passed through the through holes, the partition plate (8) being provided with a retractor (41), the retractor (41) being provided with a coil spring, the cable (40) being wound around the retractor (41).

6. The acoustic static cone penetration testing device for submarine sediment layers according to claim 1, characterized in that: A plurality of connecting rods (42) are fixedly connected to the housing (1), a lifting ring (43) is fixedly connected to the connecting rod (42), and a pad is fixedly connected to the output end of the hydraulic cylinder (3).

7. An acoustic static penetration testing device for subsea sediment layers according to claim 1, characterized in that: The dial gear includes a disk body (19), and a plurality of cavities (20) are formed in the disk body (19). The cavities (20) communicate with the outside through mounting holes, and a dial tooth (21) is inserted into the mounting holes. A limiting block (22) is placed in the cavities (20), and the dial tooth (21) is fixedly connected to the limiting block (22). A spring (23) is fixedly connected in the cavities (20), and the spring (23) abuts against the limiting block (22). Grooves (24) are formed on the probe rod (4), the first semi-tube (11) and the second semi-tube (12), and the dial teeth (21) are adapted to the grooves (24).

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