A simulation platform of long-term bottom observation function

Abstract

The application belongs to the technical field of seabed detection, and particularly relates to a simulation platform with long-term bottom observation function. In view of the problem that the existing detection platform is prone to device tilting when thrown into the sea, the following scheme is proposed, which comprises a device mounting frame part and a counterweight support frame which is detachably and fixedly connected to the bottom of the device mounting frame part. The device mounting frame part comprises an upper frame and a middle frame which are in the overall rectangular structure. Four corrosion-resistant connecting rods which are parallel to each other and vertically distributed are fixed at the corners of the upper frame and the middle frame. A floating mechanism is fixed between the upper frame and the middle frame. An observation device mounting frame is fixed between the four corrosion-resistant connecting rods. The counterweight support frame with the gravity far greater than the buoyancy of the floating mechanism is always located below during the overall lowering of the device, which is beneficial to the device to remain in a stable state and slowly descend when encountering the submarine undercurrent, and avoids the device from tilting when reaching the seabed.

Description

Technical Field

[0001] This invention relates to the field of seabed exploration technology, and in particular to a simulation platform for long-term seabed observation. Background Technology

[0002] Ocean (sea), a geographical term, is the collective name for the most extensive body of water on Earth. The Earth's surface is divided into vast, interconnected bodies of water by continents, known as oceans. The central part of an ocean is called a sea, and the peripheral parts are called seas, forming a unified body of water. Seawater temperature is a physical quantity reflecting the temperature of seawater. The temperature of the world's oceans generally ranges from -2°C to 30°C, with areas having an annual average temperature exceeding 20°C covering more than half of the total ocean area. Seawater temperature exhibits periodic variations (daily, monthly, annual, and multi-year) as well as irregular variations, primarily depending on the ocean's heat balance and its temporal changes. Generally, factors influencing ocean surface temperature include tides, solar radiation, coastal topography, meteorology, and ocean currents. The ocean is one of the main factors determining climate development on Earth. The ocean itself is the largest heat reservoir on the Earth's surface. Ocean currents are the largest heat transfer belts on the Earth's surface. The gas exchange between the ocean and the atmosphere (primarily water vapor, carbon dioxide, and methane) has a particularly significant impact on climate change and development. Acoustic release devices are used for the release and retrieval of marine instruments and equipment anchored on the seabed, especially in deep waters where it is inconvenient to lay cables and other facilities. Because equipment and instruments used for marine operations and observation often need to be deployed in the ocean for extended periods, and given the harsh marine environment, deployment can easily lead to platform capsizing or even equipment damage.

[0003] Research indicates that most existing seabed detection platforms are first deployed to the seabed using diving equipment, and then their positions are fixed. This deployment method is only suitable for operation and exploration in shallow waters. When conducting long-term exploration in deep waters, since divers cannot reach the seabed, allowing the equipment to fall freely may cause it to tip over or become unstable upon reaching the seabed. Therefore, a new type of seabed detection equipment is needed to solve the problem of whether the placement is stable. Summary of the Invention

[0004] This invention proposes a simulation platform for long-term bottom-dwelling observation, comprising an equipment mounting frame and a counterweight support frame detachably and fixedly connected to the bottom of the equipment mounting frame. The equipment mounting frame includes an upper frame and a middle frame with an overall rectangular structure. Four parallel and vertically distributed corrosion-resistant connecting rods are fixed at the corners of the upper and middle frames. A floating mechanism is fixed between the upper and middle frames. The observation equipment mounting frame is fixed between the four corrosion-resistant connecting rods. Two acoustic release devices are fixed at the upper middle of the observation equipment mounting frame, and iron chains are fixed at the bottom of the two acoustic release devices. A hook is fixed in the middle of the iron chains, and the bottom of the hook is detachably and fixedly connected to the middle of the top of the counterweight support frame. By setting up a detachable counterweight support frame and acoustic release devices, the counterweight support frame, whose gravity is much greater than the buoyancy of the floating mechanism, can always be located at the bottom during the overall descent of the device. This helps the device maintain a stable state and descend slowly when encountering seabed currents, avoiding the device from tipping over when it reaches the seabed.

[0005] A further feature of this invention is that the counterweight support frame includes two welded pipes that are crossed and fixed together. Parallel end connecting rods are fixed to both ends of the two welded pipes, and the end connecting rods and the two welded pipes are in the same plane. A fixing clamp is fixed at the midpoint of the intersection of the two welded pipes, and a rigging adapted to the hook is fixed to the top of the fixing clamp. Symmetrical support legs with an inward V-shape are fixed to both ends of the two welded pipes. A counterweight is detachably fixed to the bottom of each of the four support legs. The four support legs are arranged in a frustum shape. By setting up the four frustum-shaped support legs and the counterweight, the load-bearing area is increased while lowering the center of gravity of the device, which helps to improve the stability of the device.

[0006] A further feature of this invention is that each of the four support legs has a mounting groove near its bottom on its circumferential outer wall. A bolt hole is located at the bottom of each mounting groove. A stud, matching the diameter of the bolt hole, is fixed to the center of the upper surface of each counterweight. A countersunk nut is screwed to the top of each stud. After screwing, the countersunk nut is spot-welded to prevent stripping of the stud during long-term placement in seawater, which could cause the counterweight to fall off. Welding the countersunk nut to the top increases the stability of the counterweight. Furthermore, the counterweight is separated from the counterweight support frame before installation, increasing the convenience of transportation.

[0007] A further feature of this invention is that each of the counterweight blocks has a conical pin fixed to its bottom. Each pin is distributed at an inclination, and the inclination of the pin is parallel to the supporting leg on its side. By setting the pins, the counterweight blocks are more firmly fixed to the ground after the device sinks to the seabed, thus improving the anti-slip effect.

[0008] A further feature of this invention is that the floating mechanism includes two float fixing frames 1 fixed inside the upper frame and two float fixing frames 2 fixed in the middle of the middle frame. The float fixing frames 1 and 2 have the same structure, and three glass floats are fixed inside the float fixing frame 1 by screws. Both ends of the equipment mounting frame are fixed with end float fixing frames 2, and the number of glass floats in the middle of each end float fixing frame 2 is two. Side float fixing frames are fixed on both the front and rear sides of the equipment mounting frame, and the number of glass floats in each side float fixing frame is two. U-shaped protective rods 1 are fixed at both the front and rear ends of the equipment mounting frame to protect the glass floats. By setting the float fixing frames and U-shaped protective rods 1, the glass floats can be protected to the greatest extent inside the frame-like structure, avoiding collisions during transportation and preventing collisions with reefs that could cause the glass floats to break during the descent and sinking of the device.

[0009] A further feature of the present invention is that a fixing ring is fixed in the middle of the outer circumference of the glass float, and multiple equally spaced screw holes are opened on the fixing ring. Bolt holes that match the screw holes are opened on the end float fixing frame 2, the side float fixing frame and the float fixing frame 1. The glass floats can be fixed one by one by using extended screws or bolts, which is convenient and quick.

[0010] Weight of each part in water

[0011] a. Weight of the floating and recoverable equipment mounting frame: not exceeding 180kg in water.

[0012] b. Weight of counterweight: at least 600 kg in water.

[0013] c. Effective load weight, the total weight shall not exceed 230 kg.

[0014] Glass buoys provide buoyancy

[0015] The glass buoys are designed to be used in quantities of 20, with a buoyancy of 25 * 20 = 500 kg·g (N).

[0016] Overall stress

[0017] When the simulation platform is deployed, the overall force on the platform in seawater, including the counterweight, is at least 510 kg·g (N).

[0018] During the recovery process, the overall force on the recovered part, i.e., the equipment mounting frame, in the water is greater than -90 kg·g (N), meaning the overall buoyancy of the recovered part is at least 90 kg·g (N).

[0019] Pressure resistance index

[0020] The simulation platform framework can meet the pressure resistance requirements for ocean depth observation operations at 7000m. Its actual deployment and recovery performance is limited only by the extreme working capacity of the buoy or float material and the acoustic release device.

[0021] A further feature of this invention is that a camera mechanism and a pressure detector are fixed on the observation equipment mounting frame. The camera mechanism includes a waterproof camera and a pressure-resistant and waterproof battery compartment. A flow rate detector is fixed in the middle of the top of the equipment mounting frame. An upwardly protruding lifting rod is also fixed in the middle of the top of the equipment mounting frame. The lifting rod and the instruments hidden within the protection range of the equipment mounting frame can effectively protect the equipment from collisions.

[0022] A further feature of this invention is that each of the four corners of the top of the counterweight support frame is fixed with a plug-in mechanism, and the bottom of each of the four corrosion-resistant connecting rods is reserved with a spring groove. A compression spring is fixed in each spring groove, and the bottom of each corrosion-resistant connecting rod is slidably inserted into the plug-in mechanism. When it is necessary to detach the counterweight support frame from the top equipment, the connection between the two can be broken simply by controlling the acoustic release device. Furthermore, a thrust will be generated near the bottom of the corrosion-resistant connecting rods at the four corners under the action of the compression spring, preventing long-term accumulation from causing sludge buildup and blockage at the connection point.

[0023] A further feature of this invention is that the insertion mechanism includes a hollow chassis, which is generally disc-shaped. A protruding end is provided on the side of the hollow chassis, and a water inlet is provided at the end of the protruding end. A flow-through hole with a cross-shaped structure is opened in the center of the upper surface of the hollow chassis. A connecting tube is fixed to the top of the hollow chassis. The inner diameter of the connecting tube matches the diameter of the corrosion-resistant connecting rod. The corrosion-resistant connecting rod is slidably connected inside the connecting tube. Multiple vertical flushing guide channels are opened inside the circumference of the connecting tube, and these flushing guide channels correspond to the cross-shaped flow-through hole at the bottom. Through the flushing guide channels, during observation, even slight undercurrents on the seabed will enter through the water inlet and flush the silt accumulated on the inner wall of the connecting tube from bottom to top, preventing continuous siltation.

[0024] Once assembled on the ground, it can be deployed in the designated sea area. With its detachable counterweight support frame and acoustic release device, the counterweight support frame, whose gravity is much greater than the buoyancy of the floating mechanism, can always be positioned at the bottom during the overall descent of the device. This helps the device maintain a stable state and descend slowly when encountering underwater currents, preventing it from tipping over when it reaches the seabed.

[0025] A further feature of this invention is that a straight pipe is fixed between each of the two insertion mechanisms, and a tee pipe is fixed between the two straight pipes at the same end. The straight pipe is sealed and inserted into the water inlet, and a pressure-resistant pipe is sleeved on the water inlet end of the tee pipe. Two piston barrels with opposite openings are fixed on the lower surface of the fixing clamping plate, and the ends of the two piston barrels that are far apart are respectively sleeved on the ends of the corresponding pressure-resistant pipes. A piston plate is slidably connected to the inner circumference of each of the two piston barrels, and the outer circumference of the piston plate has equally spaced ball grooves. Ball bearings are engaged in the ball grooves. A connecting rod is hinged to the side of the piston plate away from the pressure-resistant pipe, and the same swing rod is hinged between the two connecting rods. A resistance plate is fixed to the bottom end of the swing rod, and the resistance direction of the resistance plate is perpendicular to the swing direction of the swing rod. The top end of the swing rod is rotatably connected to the lower surface of the fixed clamping plate. With the setting of the piston barrel, when liquid fluctuations occur near the counterweight support frame during use, the resistance plate is immediately driven to move, and then the water pressure is sprayed out from the hollow chassis from bottom to top in a high-speed, high-pressure form, which improves the flushing and anti-sludge effect.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. By using a detachable counterweight support frame and an acoustic release device, the counterweight support frame, whose gravity is much greater than the buoyancy of the floating mechanism, can always be located at the bottom during the overall descent of the device. This helps the device maintain a stable state and descend slowly when encountering underwater currents, preventing the device from tipping over when it reaches the seabed.

[0028] 2. By using a welded, counterweight-fixing method with opposing nuts, the long-term placement in seawater prevents the studs from stripping and causing the counterweight to fall off. Welding the opposing nuts increases the stability of the counterweight, and the counterweight is separated from the counterweight support frame before installation, increasing the convenience of transportation.

[0029] 3. By using the set float fixing frame and U-shaped protective rod, the glass float can be protected to the greatest extent inside the frame-like structure, avoiding collisions during transportation and preventing the glass float from colliding with reefs and breaking during the descent of the device.

[0030] 4. In this device, when it is necessary to detach the counterweight support frame from the top equipment, simply control the acoustic release device to disconnect the connection between the two. Furthermore, near the bottom of the corrosion-resistant connecting rod at the four corners, a thrust will be generated under the action of the compression spring, preventing long-term accumulation from causing sludge buildup and blockage at the connection point.

[0031] 5. By setting up the piston barrel, when liquid fluctuations occur near the counterweight support frame during use, the resistance plate will be driven to move immediately, and then the water pressure will be sprayed out from the hollow chassis from bottom to top in a high-speed, high-pressure form, improving the flushing and anti-sludge effect. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a simulation platform for long-term bottom-up observation proposed in this invention;

[0033] Figure 2 This is a front view of a simulation platform for long-term bottom-up observation proposed in this invention;

[0034] Figure 3 This is a bottom view of the simulation platform for long-term bottom observation proposed in this invention.

[0035] Figure 4 This is an overall structural view of the floating mechanism in a simulation platform for long-term bottom observation proposed in this invention;

[0036] Figure 5 This is a structural view of a single float in a simulation platform for long-term bottom observation proposed in this invention;

[0037] Figure 6 This is a structural diagram of the counterweight support frame of a simulation platform for long-term bottom-viewing function proposed in this invention after it has been discarded.

[0038] Figure 7 An exploded view of the counterweight support frame of a simulation platform with long-term bottom-viewing function proposed in this invention;

[0039] Figure 8 This is a half-section diagram of the piston barrel of a simulation platform with long-term bottom-viewing function proposed in this invention.

[0040] Figure 9 This is a bottom view of the equipment mounting frame of a simulation platform with long-term bottom-viewing function proposed in this invention.

[0041] Figure 10 This is an exploded view of the insertion mechanism in a simulation platform for long-term bottom-up observation proposed in this invention.

[0042] In the diagram: 1. Counterweight support frame; 2. Observation equipment mounting frame; 3. U-shaped protective rod; 4. Float fixing plate frame; 5. Glass float; 51. Fixing ring; 52. Screw hole; 6. Flow velocity meter; 7. Lifting rod; 8. Upper frame; 9. Insertion mechanism; 91. Hollow chassis; 92. Connecting pipe; 93. Flow hole; 94. Flushing guide channel; 95. Inlet; 96. Protrusion end; 10. Support leg; 11. Counterweight block; 12. Fixing clip plate; 13. Swing rod; 14. Resistance plate; 15. 16. End connecting rod; 17. Straight pipe; 18. Corrosion-resistant connecting rod; 19. Acoustic release device; 20. Camera mechanism; 21. Iron chain; 22. Pressure-resistant pipe; 23. Piston barrel; 24. Insert pin; 25. Middle frame; 26. End float fixing plate frame II; 27. Side float fixing frame; 28. Mounting slot; 29. ​​Top nut; 30. Stud; 31. T-pipe; 32. Piston plate; 33. Ball bearing; 34. Connecting rod; 35. Spring groove; 36. Compression spring; 37. Pressure detector. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] Reference Figure 1-10 A simulation platform for long-term bottom-mounted observation includes an equipment mounting frame and a counterweight support frame 1 detachably and fixedly connected to the bottom of the equipment mounting frame. The equipment mounting frame includes an upper frame 8 and a middle frame 24 with an overall rectangular structure. Four parallel and vertically distributed corrosion-resistant connecting rods 17 are fixed at the corners of the upper frame 8 and the middle frame 24. A floating mechanism is fixed between the upper frame 8 and the middle frame 24. An observation equipment mounting frame 2 is fixed between the four corrosion-resistant connecting rods 17. The observation equipment mounting frame 2 has a middle section... Two acoustic release devices 18 are fixed in place, and iron chains 20 are fixed to the bottom of each acoustic release device 18. A hook is fixed in the middle of the iron chain 20, and the bottom of the hook is detachably fixed to the middle of the top of the counterweight support frame 1. With the detachable counterweight support frame 1 and acoustic release devices 18, the counterweight support frame 1, whose gravity is much greater than the buoyancy of the floating mechanism, can always be located at the bottom during the overall descent of the device. This is beneficial for the device to maintain a stable state and descend slowly when encountering seabed currents, and to avoid the device tipping over when it reaches the seabed.

[0045] Reference Figure 1 and Figure 6The counterweight support frame 1 includes two welded pipes that are crossed and fixed together. The two ends of the two welded pipes are respectively fixed with parallel end connecting rods 15. The end connecting rods 15 and the two welded pipes are in the same plane. A fixing clamp plate 12 is fixed at the middle position of the crossover of the two welded pipes. A rigging adapted to the hook is fixed at the top of the fixing clamp plate 12. The two ends of the two welded pipes are respectively fixed with symmetrical support legs 10 in an inward V-shape. The bottom of the four support legs 10 can be detachably fixed with counterweight blocks 11. The four support legs 10 are distributed in a frustum shape. By setting the four support legs 10 in a frustum shape and the counterweight blocks 11, the bearing area is increased and the center of gravity of the device is lowered, which helps to improve the stability of the device.

[0046] Reference Figure 6 Each of the four support legs 10 has a mounting slot 27 near the bottom of its circumferential outer wall. The bottom of the mounting slot 27 has a bolt hole. Each counterweight 11 has a stud 29 with a diameter matching the bolt hole fixed in the middle of its upper surface. The top of each stud 29 is screwed with a counternut 28. After the counternut 28 is screwed in, it is spot welded to fix it to prevent the stud 29 from stripping due to long-term placement in seawater, which would cause the counterweight 11 to fall off. Welding the counternut 28 to fix it increases the stability of the counterweight 11. Furthermore, the counterweight 11 is separated from the counterweight support frame 1 before installation, which increases the convenience of transportation.

[0047] Reference Figure 3 Each counterweight 11 has a tapered pin 23 fixed to its bottom. Each pin 23 is distributed at an angle, and the angle of the pin 23 is parallel to the support leg 10 on the side where it is located. By setting the pins 23, the counterweight 11 is more firmly fixed to the ground after the device sinks to the seabed, thus improving the anti-slip effect.

[0048] Reference Figure 4 and Figure 5The floating mechanism includes two float fixing frames 1 4 fixed inside the upper frame 8 and two float fixing frames 2 fixed in the middle of the middle frame 24. The float fixing frames 1 4 and 2 have the same structure. Three glass floats 5 are fixed inside the float fixing frame 1 4 by screws. Both ends of the equipment mounting frame are fixed with end float fixing frames 2 25, and the number of glass floats 5 in the middle of each end float fixing frame 2 25 is two. The front and rear sides of the equipment mounting frame are fixed with side float fixing frames 26, and the number of glass floats 5 in each side float fixing frame 26 is two. The front and rear ends of the equipment mounting frame are fixed with U-shaped protective rods 3 to protect the glass floats 5. With the float fixing frames and U-shaped protective rods 3, the glass floats 5 can be protected to the greatest extent inside the frame-like structure, avoiding collisions during transportation and preventing them from colliding with reefs and breaking during the descent of the device.

[0049] Reference Figure 5 A fixing ring 51 is fixed to the center of the outer circumference of the glass float 5, and multiple equally spaced screw holes 52 are opened on the fixing ring 51. Bolt holes that match the screw holes 52 are opened on the end float fixing frame 25, the side float fixing frame 26, and the float fixing frame 4. The glass floats 5 can be fixed one by one by using extended screws or bolts, which is convenient and quick. The buoyancy index is as follows:

[0050] Weight of each part in water

[0051] a. Weight of the floating and recoverable equipment mounting frame: not exceeding 180kg in water.

[0052] b. Weight of counterweight: at least 600 kg in water.

[0053] c. Effective load weight, the total weight shall not exceed 230 kg.

[0054] Glass buoys provide buoyancy

[0055] The glass buoys are designed to be used in quantities of 20, with a buoyancy of 25 * 20 = 500 kg·g (N).

[0056] Overall stress

[0057] When the simulation platform is deployed, the overall force on the platform in seawater, including the counterweight, is at least 510 kg·g (N).

[0058] During the recovery process, the overall force on the recovered part, i.e., the equipment mounting frame, in the water is greater than -90 kg·g (N), meaning the overall buoyancy of the recovered part is at least 90 kg·g (N).

[0059] Pressure resistance index

[0060] The simulation platform framework can meet the pressure resistance requirements for ocean depth observation operations at 7000m. Its actual deployment and recovery performance is limited only by the extreme working capacity of the buoy or float material and the acoustic release device.

[0061] Reference Figure 2 and Figure 9 The observation equipment mounting frame 2 is equipped with a camera mechanism 19 and a pressure detector 36. The camera mechanism 19 includes a waterproof camera and a pressure-resistant waterproof battery compartment. It observes the decomposition of sea surface hydrates and the resuspension of sediments by internal isolated waves, providing image information. The shooting direction is downward. A current velocity detector 6 is fixed in the middle of the top of the equipment mounting frame. It provides observation of hydrodynamic parameters of the ocean profile. A lifting rod 7 that protrudes upward is also fixed in the middle of the top of the equipment mounting frame. The lifting rod 7 and the instruments hidden in the protection range of the equipment mounting frame can effectively protect the equipment from collisions.

[0062] Reference Figure 2 , Figure 9-10 The counterweight support frame 1 has four fixed insertion mechanisms 9 at the top corners, and the bottom ends of the four corrosion-resistant connecting rods 17 are reserved with spring grooves 34. Compression springs 35 are fixed in the spring grooves 34. The bottom ends of the corrosion-resistant connecting rods 17 are slidably inserted into the insertion mechanisms 9. When it is necessary to detach the counterweight support frame 1 from the top equipment, the connection between the two can be broken by controlling the acoustic release device 18. Furthermore, a thrust will be generated near the bottom ends of the corrosion-resistant connecting rods 17 at the four corners under the action of the compression springs 35, which will prevent long-term accumulation from causing sludge and blockage at the connection.

[0063] Reference Figure 10 The insertion mechanism 9 includes a hollow chassis 91, which has a disc-shaped structure. A protruding end 96 is pre-reserved on the side of the hollow chassis 91, and a water inlet 95 is pre-reserved at the end of the protruding end 96. A flow-through hole 93 is opened in the center of the upper surface of the hollow chassis 91, and the flow-through hole 93 has a cross-shaped structure. A connecting tube 92 is fixed to the top of the hollow chassis 91. The inner diameter of the connecting tube 92 is adapted to the diameter of the corrosion-resistant connecting rod 17. 17 is slidably connected inside the connecting tube 92. Multiple vertical flushing guide channels 94 are opened inside the circumference of the connecting tube 92, and the flushing guide channels 94 correspond to the cross-shaped flow holes 93 at the bottom. With the setting of the flushing guide channels 94, when there is a slight undercurrent fluctuation on the seabed, it will enter from the inlet 95 and then flush the silt accumulated on the inner wall of the connecting tube 92 from bottom to top, so as to avoid continuous siltation.

[0064] Reference Figure 1 , Figure 6-7A straight pipe 16 is fixed between each of the two insertion mechanisms 9, and a tee pipe 30 is fixed between the two straight pipes 16 at the same end. The straight pipe 16 is sealed and inserted into the water inlet 95, and a pressure-resistant pipe 21 is sleeved on the water inlet end of the tee pipe 30. Two piston barrels 22 with opposite openings are fixed on the lower surface of the fixed clamping plate 12, and the far ends of the two piston barrels 22 are respectively sleeved on the ends of the corresponding pressure-resistant pipes 21. A piston plate 31 is slidably connected to the inner circumference of each of the two piston barrels 22, and the outer circumference of the piston plate 31 has ball grooves distributed at equal intervals, and balls are engaged in the ball grooves. 32. A connecting rod 33 is hinged to the side of the piston plate 31 away from the pressure-resistant pipe 21, and the same swing rod 13 is hinged between the two connecting rods 33. A resistance plate 14 is fixed to the bottom end of the swing rod 13. The resistance direction of the resistance plate 14 is perpendicular to the swing direction of the swing rod 13. The top end of the swing rod 13 is rotatably connected to the lower surface of the fixed clamping plate 12. With the setting of the piston barrel 22, when liquid fluctuations occur near the counterweight support frame 1 during use, the resistance plate 14 is immediately driven to move, and then the water pressure is sprayed from the hollow chassis 91 from bottom to top in the form of high speed and high pressure, which improves the flushing and anti-sludge effect.

[0065] Before use, the device is assembled on the ground and then deployed in the designated sea area. The detachable counterweight support frame 1 and acoustic release device 18 ensure that the counterweight support frame 1, whose weight is much greater than the buoyancy of the floating mechanism, remains at the bottom during the descent. This helps the device maintain a stable and slow descent even when encountering underwater currents, preventing it from tipping over. The main frame of the entire device is made of welded stainless steel tubing, which is highly corrosion-resistant. When the device is recovered after testing, the remote control device mounting bracket of the acoustic release device 18 detaches from the counterweight support frame 1. At this point, the lift generated by the buoyancy of the 20 glass floats 5 slowly lifts the device mounting bracket until it floats to the surface.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A simulation platform for long-term bottom-mounted observation, comprising an equipment mounting frame and a counterweight support frame (1) detachably and fixedly connected to the bottom of the equipment mounting frame, wherein the equipment mounting frame comprises an upper frame (8) and a middle frame (24) having an overall rectangular structure, four parallel and vertically distributed corrosion-resistant connecting rods (17) are fixed at the corners of the upper frame (8) and the middle frame (24), a floating mechanism is fixed between the upper frame (8) and the middle frame (24), and an observation equipment mounting frame (2) is fixed between the four corrosion-resistant connecting rods (17), characterized in that, Two acoustic release devices (18) are fixed at the top center of the observation equipment mounting frame (2), and iron chains (20) are fixed at the bottom of the two acoustic release devices (18). A hook is fixed in the middle of the iron chain (20), and the bottom of the hook is detachably and fixedly connected to the top center of the counterweight support frame (1). The counterweight support frame (1) includes two welded pipes that are crossed and fixed together. Parallel end connecting rods (15) are fixed to both ends of the two welded pipes. The end connecting rods (15) and the two welded pipes are in the same plane. A fixing clip (12) is fixed at the midpoint of the intersection of the two welded pipes. A rigging adapted to the hook is fixed to the top of the fixing clip (12). Symmetrical support legs (10) with an inward V-shape are fixed to both ends of the two welded pipes. A counterweight block (11) is detachably fixed to the bottom of each of the four support legs (10). The four support legs (10) are arranged in a truncated pyramid shape. Insertion mechanisms (9) are fixed at the four corners of the top of the counterweight support frame (1). The bottom end of each corrosion-resistant connecting rod (17) is reserved with a spring groove (34), and a compression spring (35) is fixed in the spring groove (34). The bottom end of each corrosion-resistant connecting rod (17) is slidably inserted into the insertion mechanism (9). The insertion mechanism (9) includes a hollow base (91). The hollow base (91) is in the shape of a disc. A protrusion end (96) is reserved on the side of the hollow base (91). A water inlet (95) is reserved at the end of the protrusion end (96). An overflow hole (93) is opened in the middle of the upper surface of the hollow base (91). The overflow hole (93) is in the shape of a cross. A connecting tube (92) is fixed at the top of the hollow base (91). The inner diameter of the connecting tube (92) is the same as that of the corrosion-resistant connecting rod (17). The diameter of the corrosion-resistant connecting rod (17) is matched, and the corrosion-resistant connecting rod (17) is slidably connected inside the connecting tube (92). Multiple vertical flushing guide grooves (94) are opened inside the circumference of the connecting tube (92), and the flushing guide grooves (94) correspond to the cross-shaped flow holes (93) at the bottom. Straight pipes (16) are fixed between the two connecting mechanisms (9), and the same three-way pipe (30) is fixed between the two straight pipes (16) at the same end. The straight pipe (16) is sealed and inserted into the water inlet (95), and the water inlet end of the three-way pipe (30) is sleeved with a pressure-resistant pipe (21). Two piston barrels (22) with opposite openings are fixed on the lower surface of the fixed clamping plate (12). The two piston barrels (22) are respectively sleeved on the ends of the corresponding pressure-resistant pipes (21) at their far ends. The inner circumference of the two piston barrels (22) is slidably connected with piston plates (31), and the outer circumference of the piston plates (31) is provided with equally spaced ball grooves. Balls (32) are locked in the ball grooves. A connecting rod (33) is hinged to the side of the piston plate (31) away from the pressure-resistant pipe (21), and the two connecting rods (33) are hinged to the same swing rod (13). A resistance plate (14) is fixed at the bottom of the swing rod (13). The resistance direction of the resistance plate (14) is perpendicular to the swing direction of the swing rod (13). The top end of the swing rod (13) is rotatably connected to the lower surface of the fixed clamping plate (12).

2. The simulation platform for long-term bottom-dwelling observation function according to claim 1, characterized in that, The four support legs (10) have mounting slots (27) near the bottom of their outer circumference. The bottom of the mounting slots (27) has bolt holes. Each counterweight (11) has a stud (29) that matches the diameter of the bolt hole fixed in the middle of its upper surface. The top of each stud (29) is screwed with a counternut (28). The counternut (28) is then spot-welded to fix the screws.

3. The simulation platform for long-term bottom-dwelling observation function according to claim 1, characterized in that, The bottom of each counterweight (11) is fixed with a conical pin (23). Each pin (23) is distributed at an inclination, and the inclination of the pin (23) is parallel to the support leg (10) on the side where it is located.

4. The simulation platform for long-term bottom-dwelling observation function according to claim 1, characterized in that, The floating mechanism includes two float fixing plate frames 1 (4) fixed inside the upper frame (8) and two float fixing plate frames 2 fixed in the middle of the middle frame (24). The float fixing plate frames 1 (4) and 2 have the same structure. Three glass floats (5) are fixed inside the float fixing plate frame 1 (4) by screws. Both ends of the equipment mounting frame are fixed with end float fixing plate frames 2 (25). The number of glass floats (5) in the middle of each end float fixing plate frame 2 (25) is two. Both the front and rear sides of the equipment mounting frame are fixed with side float fixing frames (26). The number of glass floats (5) in each side float fixing frame (26) is two. U-shaped protective rods 1 (3) are fixed at both the front and rear ends of the equipment mounting frame to protect the glass floats (5).

5. The simulation platform for long-term bottom-up observation function according to claim 4, characterized in that, The outer circumference of the glass float (5) is fixed with a fixing ring (51) in the middle, and the fixing ring (51) has multiple equally spaced screw holes (52). The end float fixing frame 2 (25), the side float fixing frame (26) and the float fixing frame 1 (4) all have bolt holes that match the screw holes (52).

6. The simulation platform for long-term bottom-dwelling observation function according to claim 1, characterized in that, The observation equipment mounting frame (2) is fixed with a camera mechanism (19) and a pressure detector (36). The camera mechanism (19) includes a waterproof camera and a pressure-resistant waterproof battery compartment. A flow rate detector (6) is fixed in the middle of the top of the equipment mounting frame. A lifting rod (7) that protrudes upward is also fixed in the middle of the top of the equipment mounting frame.

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