Offshore ADCP anti-shaking stable positioning installation platform

Abstract

The invention discloses an offshore ADCP anti-shaking stable positioning installation platform, relates to the technical field of offshore ADCP installation platforms, and aims to solve the technical problem that the adjusting system and the adjusting speed of a current traditional sensor and a motor are difficult to match with real-time shaking, the offshore ADCP anti-shaking stable positioning installation platform comprises a floating frame, and an upper layer installation groove and a lower layer installation groove are formed in the floating frame; and an ADCP mounting frame for mounting an ADCP instrument is fixedly mounted at the bottom of the floating frame. Real-time response is achieved through the designed pressure reduction mechanism and the inflation mechanism which are in mechanical linkage, and external energy input is not needed. When sea waves impact the buoy, the piston immediately compresses air to inflate the air bag, shaking is counteracted by increasing the drainage area, the whole adjusting process and the sea wave impact are synchronously generated, and when the sea wave impact frequency changes, the reciprocating motion of the buoy automatically adjusts the inflation and deflation rhythm of the air bag through the torsional spring and the spring. The problem that the adjusting speed of an existing traditional sensor and motor adjusting system is difficult to match and shake in real time is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore ADCP installation platforms, and more particularly to an offshore ADCP anti-swaying and stable positioning installation platform. Background Art

[0002] With the development of science and technology, instruments for measuring flow velocity (discharge) are constantly being reformed and innovated. Currently, in sea or river flow measurements, the Acoustic Doppler Current Profiler (ADCP) is a new flow velocity measuring instrument developed internationally. This instrument is an instrument that measures the water velocity profile by dropping the instrument to a fixed depth below the sea surface.

[0003] A Chinese patent (authorization publication number: CN 209366413 U) discloses an offshore ADCP installation platform, comprising transverse and longitudinal beams. The transverse and longitudinal beams are interlaced and fixed to form the basic framework of the ADCP installation platform. A buoy is fixed to each of the four lower ends of the platform framework, and ropes are mounted on the buoys, securing the buoys to the longitudinal beams via the ropes. A drive box is located above the transverse beam, and support rods are symmetrically fixed to the bottom of the drive box. The drive box is fixed to the transverse beam via the support rods. Adjustment mechanisms are fixed to each of the four lower ends of the drive box, and the bottom of the adjustment mechanism is fixedly connected to the ADCP mounting plate. This offshore ADCP installation platform is easy to install and carry, can stabilize the ADCP instrument at a certain depth below the sea surface, improves the accuracy of detection data, and reduces the impact of magnetic fields on the detection instrument. This saves ship rental fees associated with traditional ship platform installation operations, thereby reducing project costs. Regarding the above description, the applicant believes that the following problems exist: During use, this utility model detects the inclination of the ADCP mounting plate using a tilt sensor. Simultaneously, a control panel controls the operation of a motor, which drives a screw to adjust the ADCP mounting plate's inclination to maintain a horizontal position as much as possible, thereby stabilizing the ADCP instrument's depth beneath the sea. However, in actual use, after the tilt sensor detects the inclination and the motor drives the screw to adjust, by the time the adjustment command is issued, the waves have already caused the platform to sway again. The adjustment speed is difficult to keep up with the actual sway, potentially causing fluctuations in the ADCP depth. In light of this, we propose a sway-resistant and stable mounting platform for offshore ADCPs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology, adapt to actual needs, and provide an offshore ADCP anti-sway and stable positioning installation platform to solve the technical problem that the current traditional sensor and motor adjustment system is difficult to adjust the speed to match the real-time sway.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an offshore ADCP anti-sway stable positioning installation platform, comprising a floating frame, wherein the floating frame has an upper mounting groove and a lower mounting groove defined therein; an ADCP mounting bracket for mounting an ADCP instrument fixedly mounted on the bottom of the floating frame; an inflation mechanism, comprising a piston, an air box, and an airbag; the air box being fixedly mounted on the inner wall of the upper mounting groove, the piston being slidably mounted inside the air box, and the airbag being fixedly mounted on the outer wall of the floating frame and sealedly connected to the air box via an air pipe extending through the groove wall of the upper mounting groove; and a decompression mechanism, comprising a buoy, which is a frustum-shaped shell that is wider at the bottom and narrower at the top. The bottom of the buoy is integrally formed with an anchor layer, which constitutes a counterweight with a lower center of gravity. The top of the buoy is a canopy layer, and the outer peripheral surface of the buoy is uniformly distributed with a plurality of wavy grooves, which extend along the circumference of the cylinder and form a continuously undulating groove structure. The buoy is movable inward and drives the piston to slide inside the air box, thereby pressing the air inside the air box into the airbag.

[0006] Preferably, the inflation mechanism also includes a rotating disk, which is rotatably mounted inside the upper mounting groove, a connecting rod is rotatably mounted on the inner side of the rotating disk, and a slide rail is fixedly mounted inside the upper mounting groove; a sliding frame is rotatably mounted on the end of the connecting rod away from the rotating disk and is slidably mounted on the surface of the slide rail, a push rod is fixedly mounted on the outward end of the sliding frame, and the push rod passes through the air box and is fixedly mounted on the piston; the rotating disk and the floating frame are hingedly mounted by a torsion spring.

[0007] Preferably, the decompression mechanism also includes a first gear, which is rotatably installed in the lower mounting groove through a connecting shaft, and is fixedly installed with a partition plate between the upper mounting groove and the lower mounting groove and a rotating disk, and a second gear meshing with the first gear is rotatably installed in the lower mounting groove; a fixed frame is fixedly installed on the outside of the floating frame, a sliding plate is slidably installed in the fixed frame, and a connecting rod passing through the fixed frame is fixedly installed in the sliding plate, and a rack meshing with the second gear is fixedly installed at one end of the connecting rod arranged in the lower mounting groove; the diameter of the second gear is larger than the diameter of the first gear; the float is fixedly installed on the end of the connecting rod away from the rack, and a spring is fixedly installed between the sliding plate and the fixed frame.

[0008] Preferably, the inflation mechanism, except for the rotating disk and the torsion spring, is provided with multiple groups, and is circumferentially distributed around the center of the floating frame.

[0009] Preferably, the decompression mechanism, except for the first gear and the connecting shaft, is provided with multiple groups, and is circumferentially distributed around the center of the floating frame.

[0010] Preferably, an arc-shaped top plate with a high middle and low edges is fixedly installed on the top of the floating frame.

[0011] Preferably, the floating frame can be connected to the ship via a draw rope.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention achieves real-time response through a mechanically linked decompression and inflation mechanism, eliminating the need for external energy input. When waves impact the buoy, the piston immediately compresses air to inflate the airbag, eliminating the need for sensor detection and electronic control system calculations. This increases the drainage area to offset sloshing. The entire adjustment process occurs synchronously with the wave impact. As the frequency of the wave impact changes, the reciprocating motion of the buoy automatically adjusts the inflation and deflation rhythm of the airbag via the torsion spring and spring, resolving the problem of traditional sensor and motor adjustment systems, which struggle to keep pace with real-time sloshing.

[0013] 2. The present invention also adopts a conical structure with a wide bottom and narrow top in the design of the buoy and is equipped with a bottom anchor seat layer to form a counterweight part with a sunken center of gravity, which significantly reduces the center of gravity height of the device. The wavy grooves on the surface of the buoy disperse the impact force of waves through a continuous undulating groove structure, weakening the generation of swaying force at the source, thereby reducing the amplitude of changes in the frequency of wave impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the top cross-sectional structure of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the air box of the present invention; Figure 4 It is a schematic diagram of the bottom cross-sectional structure of the present invention; Figure 5 Schematic diagram of the first gear and its related structures of the present invention; Figure 6 It is a schematic diagram of the appearance structure of the buoy of the present invention.

[0015] Explanation of the numbers in the figure: 1. Floating frame; 11. Upper mounting groove; 12. Lower mounting groove; 2. Inflating mechanism; 21. Rotating disk; 22. Connecting rod; 23. Slide rail; 24. Sliding frame; 25. Push rod; 26. Piston; 27. Air box; 28. Air bag; 29. ​​Torsion spring; 3. Decompression mechanism; 31. First gear; 311. Connecting shaft; 32. Second gear; 33. Rack; 34. Connecting rod; 35. Sliding plate; 36. Fixed frame; 37. Float; 371. Anchor seat layer; 372. Umbrella cover layer; 373. Wave-shaped groove; 38. Spring; 4. Arc-shaped top plate; 5. ADCP mounting frame; 6. Pull rope. DETAILED DESCRIPTION

[0016] Example: Figures 1 to 6As shown, the present invention relates to an offshore ADCP anti-sway stable positioning installation platform, including a floating frame 1, which can be connected to a ship through a pull rope 6, a curved top plate 4 with a high middle and low edges fixedly installed on the top of the floating frame 1, and an upper installation groove 11 and a lower installation groove 12 are opened inside the floating frame 1; an ADCP installation frame 5 for installing ADCP instruments is fixedly installed on the bottom of the floating frame 1; an inflation mechanism 2, the inflation mechanism 2 includes a piston 26, an air box 27 and an air bag 28, the air box 27 is fixedly installed on the inner wall of the upper installation groove 11, the piston 26 is slidably installed inside the air box 27, the air bag 28 is fixedly installed on the outer wall of the floating frame 1, and the air pipe passes through the upper installation groove 11. The groove wall is sealed with the air box 27; the pressure relief mechanism 3 includes a float 37, which is a conical shell that is wider at the bottom and narrower at the top. The bottom of the float 37 is integrally formed with an anchor seat layer 371, which constitutes a counterweight with a sinking center of gravity. The top of the float 37 is an umbrella layer 372. The outer surface of the float 37 is evenly distributed with a number of wavy grooves 373, which extend along the circumference of the cylinder and form a continuous undulating groove structure. The float 37 can move inward and drive the piston 26 to slide inside the air box 27, pressing the air inside the air box 27 into the airbag 28. The present invention achieves real-time response through the mechanical linkage of the pressure relief mechanism 3 and the inflation mechanism 2, without the need for external energy input. When the frequency of the wave impact changes, the reciprocating motion of the float 37 automatically adjusts the inflation and deflation rhythm of the airbag 28 through the torsion spring 29 and the spring 38, solving the problem of the current traditional sensor and motor adjustment system, which has difficulty in adjusting the speed to match the real-time shaking.

[0017] Further, such as Figures 2 to 3 As shown, the inflation mechanism 2 also includes a rotating disk 21, which is rotatably mounted within the upper mounting slot 11. A connecting rod 22 is rotatably mounted within the rotating disk 21, and a slide rail 23 is fixedly mounted within the upper mounting slot 11. A sliding frame 24 is rotatably mounted on the end of the connecting rod 22, which is slidably mounted on the surface of the slide rail 23. A push rod 25 is fixedly mounted on the outwardly flared end of the slide rail 24. The push rod 25 extends through the air box 27 and is fixedly mounted to the piston 26. The rotating disk 21 is hingedly connected to the floating frame 1 via a torsion spring 29. In addition to the rotating disk 21 and torsion spring 29, the inflation mechanism 2 is equipped with multiple groups of springs, distributed circumferentially around the center of the floating frame 1. The present invention achieves real-time response through the mechanically linked decompression mechanism 3 and inflation mechanism 2, eliminating the need for external energy input. When waves impact the buoy 37, the piston 26 immediately compresses air to inflate the airbag 28, without waiting for sensor detection or electronic control system calculations. This increases the drainage area to offset swaying, and the entire adjustment process occurs synchronously with the wave impact.

[0018] Further, such as Figures 4 to 6As shown, the decompression mechanism 3 also includes a first gear 31, which is rotatably mounted inside the lower mounting groove 12 through a connecting shaft 311, and is fixedly mounted on the partition between the upper mounting groove 11 and the lower mounting groove 12 and the rotating disk 21. A second gear 32 meshing with the first gear 31 is rotatably mounted inside the lower mounting groove 12; a fixed frame 36 is fixedly mounted on the outside of the floating frame 1, a sliding plate 35 is slidably mounted inside the fixed frame 36, and a connecting rod 34 passing through the fixed frame 36 is fixedly mounted inside the sliding plate 35. One end of the connecting rod 34 is arranged inside the lower mounting groove 12 and is fixedly mounted with a rack 33 meshing with the second gear 32; the diameter of the second gear 32 is greater than The diameter of the first gear 31; the buoy 37 is fixedly installed on the end of the connecting rod 34 away from the rack 33, and a spring 38 is fixedly installed between the sliding plate 35 and the fixed frame 36. In addition to the first gear 31 and the connecting shaft 311, the pressure reducing mechanism 3 is provided with multiple groups, and is circumferentially distributed at the center of the floating frame 1. The present invention also adopts a frustum-shaped structure with a wide bottom and a narrow top and is equipped with a bottom anchor layer 371 to form a counterweight part with a sunken center of gravity, which significantly reduces the center of gravity height of the device, and the wavy groove 373 on the surface of the buoy 37 disperses the wave impact force through a continuously undulating groove structure, weakens the generation of shaking force from the source, and thereby reduces the amplitude of the wave impact frequency change.

[0019] Working principle: This embodiment provides an offshore ADCP anti-sway and stable positioning installation platform. When in use, the pull rope 6 is connected to the ship, the device is placed in a suitable position, and the ADCP instrument is installed at the bottom of the ADCP mounting frame 5. The three buoys 37 arranged on the side of the floating frame 1 can provide buoyancy support for the device. When there is a surge impacting the device in the surrounding area, the surge first impacts the buoy 37. The buoy 37 first uses its own frustum structure. The streamlined transition of the edge of the frustum-shaped buoy 37 guides the water flow to bypass smoothly, and the buoy 37 itself has a structural characteristic of being wide at the bottom and narrow at the top. The bottom anchor layer 371 is also designed to be weighted to lower the center of gravity and improve stability. The wavy grooves 373 opened on the surface of the buoy 37 can further increase the stability of the device by dispersing the impact force of the waves and reducing the water flow resistance.

[0020] When the buoy 37 is hit, the buoy 37 drives the connecting rod 34 to slide inside the fixed frame 36. During the sliding process of the connecting rod 34, the sliding plate 35 is fixedly installed on the outside of the connecting rod 34 and slidably installed inside the fixed frame 36. The spring 38 is fixedly installed between the fixed frame 36 and the sliding plate 35. At this time, the spring 38 is stretched and stores energy, driving the inner side of the rack 33 to move, thereby driving the first gear 31 engaged with it to rotate. While the first gear 31 rotates, the rotating disk 21 is driven to rotate through the connecting shaft 311. At this time, the torsion spring 29 is forced to store energy, and the rotation of the rotating disk 21 drives the connecting rod 22 to push the sliding frame 24 to slide on the outside of the slide rail 23. When the sliding frame 24 moves outward, the push rod 25 pushes the piston 26 inside the air box 27, pressing the air inside the air box 27 into the air bag 28, causing the air bag 28 to expand, thereby increasing the contact area with the water surface, thereby quickly keeping the device stable.

[0021] After the float 37 loses its impact force, the torsion spring 29 and the spring 38 rebound, causing the air inside the airbag 28 to enter the air box 27, thereby reducing the volume of the airbag 28.

[0022] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. An offshore ADCP anti-sway stable positioning installation platform, characterized in that: include: A floating frame (1), wherein an upper installation groove (11) and a lower installation groove (12) are provided inside the floating frame (1); An ADCP mounting frame (5) for mounting an ADCP instrument is fixedly mounted on the bottom of the floating frame (1); An inflation mechanism (2), the inflation mechanism (2) comprising a piston (26), an air box (27) and an air bag (28), the air box (27) being fixedly mounted on the inner wall of the upper mounting groove (11), the piston (26) being slidably mounted inside the air box (27), the air bag (28) being fixedly mounted on the outer wall of the floating frame (1), and being sealedly connected to the air box (27) via an air pipe penetrating the groove wall of the upper mounting groove (11); A decompression mechanism (3), the decompression mechanism (3) comprising a buoy (37), the buoy (37) being a cone-shaped shell that is wider at the bottom and narrower at the top, an anchor seat layer (371) being integrally formed at the bottom of the buoy (37), constituting a counterweight portion with a sinking center of gravity, the top of the buoy (37) being an umbrella layer (372), the outer peripheral surface of the buoy (37) being uniformly distributed with a plurality of wavy grooves (373), the wavy grooves (373) extending along the circumference of the cylinder and forming a continuously undulating groove structure; The float (37) can move inward and drive the piston (26) to slide inside the air box (27), thereby pressing the air inside the air box (27) into the air bag (28).

2. The offshore ADCP anti-sway stable positioning installation platform according to claim 1, characterized in that: The inflation mechanism (2) further comprises a rotating disk (21), the rotating disk (21) being rotatably mounted inside the upper mounting groove (11), a connecting rod (22) being rotatably mounted inside the rotating disk (21), and a slide rail (23) being fixedly mounted inside the upper mounting groove (11); The end of the connecting rod (22) away from the rotating disk (21) is rotatably mounted with a sliding frame (24) slidably mounted on the surface of the slide rail (23), and the outward-expanded end of the sliding frame (24) is fixedly mounted with a push rod (25), and the push rod (25) passes through the air box (27) and is fixedly mounted with the piston (26); The rotating disk (21) and the floating frame (1) are hingedly mounted via a torsion spring (29).

3. The offshore ADCP anti-sway stable positioning installation platform according to claim 2, characterized in that: The decompression mechanism (3) further comprises a first gear (31), the first gear (31) being rotatably mounted inside the lower mounting groove (12) via a connecting shaft (311), and being fixedly mounted on a partition plate and a rotating disk (21) between the upper mounting groove (11) and the lower mounting groove (12), and a second gear (32) meshing with the first gear (31) being rotatably mounted inside the lower mounting groove (12); A fixed frame (36) is fixedly installed on the outside of the floating frame (1), a sliding plate (35) is slidably installed inside the fixed frame (36), a connecting rod (34) penetrating the fixed frame (36) is fixedly installed inside the sliding plate (35), and a rack (33) meshing with the second gear (32) is fixedly installed at one end of the connecting rod (34) arranged inside the lower installation groove (12); The diameter of the second gear (32) is greater than the diameter of the first gear (31); The float (37) is fixedly mounted on one end of the connecting rod (34) away from the rack (33), and a spring (38) is fixedly mounted between the sliding plate (35) and the fixed frame (36).

4. The offshore ADCP anti-sway stable positioning installation platform according to claim 2, characterized in that: The inflation mechanism (2) is provided with multiple groups, except for the rotating disk (21) and the torsion spring (29), and is circumferentially distributed at the center of the floating frame (1).

5. The offshore ADCP anti-sway stable positioning installation platform according to claim 3 is characterized in that: The decompression mechanism (3), except for the first gear (31) and the connecting shaft (311), is provided with multiple groups, and is circumferentially distributed at the center position of the floating frame (1).

6. The offshore ADCP anti-sway stable positioning installation platform according to claim 1, characterized in that: A curved top plate (4) with a high middle and low edges is fixedly mounted on the top of the floating frame (1).

7. The offshore ADCP anti-sway stable positioning installation platform according to claim 6, characterized in that: The floating frame (1) can be connected to a ship via a pull rope (6).

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