Small-scale in-situ acoustic imaging device for seabed sediment

Abstract

The utility model discloses a small-scale in-situ acoustic imaging device for seabed sediment, which relates to the technical field of seabed detection equipment and comprises a supporting plate, a mounting plate is arranged above the supporting plate, a plurality of connecting seats are arranged on the sides, close to each other, of the supporting plate and the mounting plate in a surrounding manner, and movable seats are movably arranged in the connecting seats through pin shafts. An electric push rod is fixedly arranged between every two adjacent movable seats. According to the utility model, the support plate is arranged, the mounting plate is arranged above the support plate, the imager and the gradienter are arranged above the mounting plate, the three groups of electric push rods are arranged between the support plate and the mounting plate, and the positions between the support plate and the mounting plate can be adjusted by respectively adjusting the telescopic ranges of the three groups of electric push rods; and after the device is put to the seabed, the position of the mounting plate can be adjusted according to the flatness of the seabed, so that the levelness of the imager is ensured, and the imaging effect can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of seabed exploration equipment technology, and in particular to a small-scale in-situ acoustic imaging device for seabed sediment. Background Technology

[0002] Ocean navigation, resource exploration, and engineering construction all rely on seabed acoustic environment detection. Surface sediments, as the interface between seawater and the seabed, hold unique acoustic research significance and are an important component of the ocean acoustic environment, making them an indispensable research subject for marine sediment surveys and ocean acoustic field studies. In-situ acoustic measurements can obtain more accurate acoustic characteristics of seabed sediments because they almost completely preserve the physical properties and environment of the sediments. They are not affected by disturbances during sample collection, storage, and transportation that could alter their internal structure (e.g., soft, deep-sea surface sediments, shallow-sea sandy sediments, and certain gas-bearing sediments), nor are they limited by sample size in terms of testing frequencies.

[0003] A small-scale in-situ acoustic imaging system for seabed sediments, disclosed in CN215180930U, includes a support frame, a high-frequency transducer, a transducer array, a mid-to-low-frequency transducer, an attitude sensor, an altimeter, a control circuit system, and a surface-based main control device. The high-frequency transducer is installed at the lower end of a support probe on the outer perimeter of the lower layer of the support frame. The transducer array is installed on a support probe in the middle of the lower layer of the support frame. Horizontal struts extending outwards are provided on both sides of the middle layer of the support frame, with the mid-to-low-frequency transducers installed at the ends of the horizontal struts furthest from the support frame. The attitude sensor, altimeter, and control circuit system are respectively installed in the middle layer of the support frame. The high-frequency transducer, transducer array, mid-to-low-frequency transducer, attitude sensor, and altimeter are all electrically connected to the control circuit system, which is electrically connected to the surface-based main control device via cables. This invention enables lateral and vertical acoustic measurements of seabed sediments in situ, and can also measure the acoustic emission coefficients at different grazing angles in situ on the seabed.

[0004] The above technical solution has some problems in practical application. Due to the unevenness of the seabed, the equipment may tilt after being deployed to the seabed, and tilted equipment cannot guarantee its imaging range.

[0005] Therefore, it is necessary to invent a small-scale in-situ acoustic imaging device for the seabed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a small-scale in-situ acoustic imaging device for the seabed to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a small-scale in-situ acoustic imaging device for seabed sediment, comprising a support plate, an mounting plate above the support plate, a plurality of insert rods surrounding the lower surface of the support plate, a plurality of connecting seats surrounding the sides of the support plate and the mounting plate that are close to each other, a movable seat being movably mounted inside the connecting seat via a pin, an electric push rod being fixedly mounted between two adjacent movable seats, and a waterproof sleeve being fitted onto the outer side of the electric push rod, a guide rod being mounted between the support plate and the mounting plate, a connecting plate being fixedly mounted at the top of the guide rod, a ball joint being fixedly mounted between the connecting plate and the mounting plate, a fixed seat being fitted onto the middle of the guide rod, and a through groove corresponding to the guide rod being opened through the middle of the fixed seat, with support rods fixedly mounted at both ends of the lower surface of the fixed seat, and the support rods being fixedly mounted on the upper surface of the support plate.

[0008] Preferably, an extension seat is fixedly provided at one end of the upper surface of the fixed seat, and clamping arms are movably provided at both ends of the upper surface of the extension seat via pins.

[0009] Preferably, the clamping arm is configured as an inclined structure, and the inner middle part of the clamping arm is in contact with the outer wall of the guide rod.

[0010] Preferably, a positioning seat is movably mounted on one end of the upper surface of the clamping arm via a bearing, and a hydraulic rod is fixedly mounted between the two positioning seats.

[0011] Preferably, an imager is fixedly mounted on the middle of the upper surface of the mounting plate, and a level is fixedly mounted on the upper surface of the mounting plate.

[0012] Preferably, a top plate is fixedly installed above the mounting plate, a lifting lug is fixedly installed in the middle of the upper surface of the top plate, and multiple counterweights are arranged around the upper surface of the support plate, and the counterweights are fixedly connected to the support plate by bolts.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model sets up a support plate, with an mounting plate on top of the support plate, and an imager and a level on top of the mounting plate. By setting three sets of electric push rods between the support plate and the mounting plate, the position between the support plate and the mounting plate can be adjusted by adjusting the extension range of the three sets of electric push rods, so as to adjust the levelness of the mounting plate. After the device is deployed to the seabed, the position of the mounting plate can be adjusted according to the flatness of the seabed to ensure the levelness of the imager, thereby ensuring the imaging effect.

[0015] 2. This utility model provides a guide rod between the mounting plate and the support plate. The guide rod is connected to the mounting plate via a ball joint shaft. The guide rod and the ball joint shaft cooperate to allow the guide rod to rotate relative to the mounting plate. By providing a clamping arm on the outside of the guide rod, the guide rod can be clamped and fixed to achieve the effect of locking the position of the mounting plate, thereby ensuring the stability of the device during operation. Attached Figure Description

[0016] Figure 1 This is a top-section schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the slot structure of this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the plate structure of this utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the plate structure of this utility model.

[0020] In the diagram: 1. Support plate; 2. Mounting plate; 3. Insert rod; 4. Connecting seat; 5. Movable seat; 6. Electric push rod; 7. Waterproof sleeve; 8. Guide rod; 9. Connecting plate; 10. Ball head shaft; 11. Fixed seat; 12. Through groove; 13. Support rod; 14. Extension seat; 15. Clamping arm; 16. Positioning seat; 17. Hydraulic rod; 18. Imaging device; 19. Level; 20. Top plate; 21. Lifting lug; 22. Counterweight. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-4 The device shown is a small-scale in-situ acoustic imaging device for seabed sediment, including a support plate 1, an mounting plate 2 above the support plate 1, and multiple insert rods 3 arranged around the lower surface of the support plate 1.

[0023] Specifically, multiple connecting seats 4 are arranged around the side of the support plate 1 and the mounting plate 2 that are close to each other. Inside the connecting seat 4, a movable seat 5 is movably arranged through a pin. An electric push rod 6 is fixedly arranged between two adjacent movable seats 5. A waterproof sleeve 7 is sleeved on the outside of the electric push rod 6. The waterproof sleeve 7 is used to protect the electric push rod 6.

[0024] More specifically, a guide rod 8 is provided between the support plate 1 and the mounting plate 2. A connecting plate 9 is fixedly provided at the top of the guide rod 8. A ball head shaft 10 is fixedly provided between the connecting plate 9 and the mounting plate 2. A fixed seat 11 is sleeved in the middle of the guide rod 8. A through groove 12 corresponding to the guide rod 8 is opened through the middle of the fixed seat 11. The diameter of the through groove 12 is much larger than that of the guide rod 8. The guide rod 8 can slide up and down and rotate tilted in the through groove 12.

[0025] Furthermore, support rods 13 are fixedly installed at both ends of the lower surface of the fixed base 11, and the support rods 13 are fixedly installed on the upper surface of the support plate 1. An extension base 14 is fixedly installed at one end of the upper surface of the fixed base 11. Clamping arms 15 are movably installed at both ends of the upper surface of the extension base 14 via pins. The clamping arms 15 are designed with an inclined structure, and the inner middle part of the clamping arms 15 is in contact with the outer side wall of the guide rod 8. A positioning base 16 is movably installed at one end of the upper surface of the clamping arms 15 via a bearing. A hydraulic rod 17 is fixedly installed between the two positioning bases 16. The hydraulic rod 17 drives one end of the two clamping arms 15 to move through the positioning bases 16, so that the two clamping arms 15 clamp and fix the guide rod 8 to achieve locking of the position of the mounting plate 2.

[0026] Furthermore, an imager 18 is fixedly installed in the middle of the upper surface of the mounting plate 2, and a level 19 is fixedly installed on the upper surface of the mounting plate 2. The level 19 is used to detect the horizontal state of the mounting plate 2 and the imager 18.

[0027] Meanwhile, a top plate 20 is fixedly installed above the mounting plate 2, and a lifting lug 21 is fixedly installed in the middle of the upper surface of the top plate 20. Multiple counterweights 22 are arranged around the upper surface of the support plate 1, and the counterweights 22 are fixedly connected to the support plate 1 by bolts. The arrangement of the counterweights 22 ensures that the insertion rod 3 on the lower surface of the support plate 1 can be inserted into the seabed surface.

[0028] Working principle of this utility model:

[0029] In operation, this device is deployed to the seabed using a ship-borne winch and a fiber optic composite cable. Once on the seabed, the support plate 1, under the action of the counterweight 22, presses the insertion rod 3 into the seabed surface to fix the device's position. At this time, the level 19 can detect the horizontal state of the mounting plate 2 and then controls the hydraulic rod 17 to extend outward. At this time, the two clamping arms 15 open, and the limit on the guide rod 8 is released. Then, according to the horizontal state of the mounting plate 2, the extension and retraction of the three electric push rods 6 are controlled respectively. The three electric push rods 6 work together to adjust the tilt of the mounting plate 2 to ensure that the imager 18 is adjusted to a horizontal state. After the position of the mounting plate 2 is adjusted, the hydraulic rod 17 is controlled to retract. The hydraulic rod 17 drives one end of the two clamping arms 15 to move through the positioning seat 16, so that the two clamping arms 15 clamp and fix the guide rod 8 to lock the position of the mounting plate 2. At this time, seabed imaging operations can be carried out.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for small-scale in-situ acoustic imaging of the seabed, comprising a support plate (1), characterised in that: The upper portion of the support plate (1) is provided with a mounting plate (2), the lower surface of the support plate (1) is provided with a plurality of insertion rods (3) around, the side of the support plate (1) and the mounting plate (2) is provided with a plurality of connecting seats (4) around, the inside of the connecting seat (4) is movably provided with a movable seat (5) through a pin shaft, the movable seat (5) is fixedly provided with an electric push rod (6) between two adjacent movable seats (5), and the outer side of the electric push rod (6) is provided with a waterproof sleeve (7). The support plate (1) and the mounting plate (2) are provided with a guide rod (8), the top end of the guide rod (8) is fixedly provided with a connecting plate (9), the connecting plate (9) and the mounting plate (2) are fixedly provided with a ball head shaft (10), the middle part of the guide rod (8) is provided with a fixed seat (11), and the middle part of the fixed seat (11) is provided with a through groove (12) corresponding to the guide rod (8), the lower surface of the fixed seat (11) is fixedly provided with a support rod (13) at both ends, and the support rod (13) is fixedly arranged on the upper surface of the support plate (1).

2. An apparatus for small-scale in-situ acoustic imaging of seabed sediments according to claim 1, characterized in that: The upper surface of the fixed seat (11) is fixedly provided with an extension seat (14), and the upper surface of the extension seat (14) is movably provided with a clamping arm (15) at both ends through a pin shaft.

3. An apparatus for small-scale in-situ acoustic imaging of seabed sediments according to claim 2, characterized in that: The clamping arm (15) is provided as an inclined structure, and the inner side of the middle part of the clamping arm (15) is fitted with the outer side wall of the guide rod (8).

4. An apparatus for small-scale in-situ acoustic imaging of seabed sediments according to claim 3, characterized in that: The upper surface of the clamping arm (15) is movably provided with a positioning seat (16) at one end through a bearing, and a hydraulic rod (17) is fixedly arranged between the two positioning seats (16).

5. An apparatus for small-scale in-situ acoustic imaging of seabed sediments according to claim 4, characterized in that: The upper surface of the mounting plate (2) is fixedly provided with an imager (18) in the middle, and the upper surface of the mounting plate (2) is fixedly provided with a level (19).

6. An apparatus for small-scale in-situ acoustic imaging of seabed sediments according to claim 5, characterized in that: The upper portion of the mounting plate (2) is fixedly provided with a top plate (20), the upper surface of the top plate (20) is fixedly provided with a lifting lug (21) in the middle, the upper surface of the support plate (1) is provided with a plurality of counterweights (22) around, and the counterweight (22) is fixedly connected with the support plate (1) through bolts.

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