CN109515625B

CN109515625B - Ocean monitoring buoy

Info

Publication number: CN109515625B
Application number: CN201811459803.8A
Authority: CN
Inventors: 蔡惠文; 任永华
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-02-07
Anticipated expiration: 2038-11-30
Also published as: CN109515625A

Abstract

The invention provides an ocean monitoring buoy, and belongs to the technical field of ocean buoys. This ocean monitoring buoy, including body one, the central point of body one side puts the vertical cylindrical body that is provided with, the upper end of cylindrical body is provided with mounting platform, the central point of the downside of body one puts and is provided with the toper balancing weight, the lower extreme of toper balancing weight is provided with solid fixed ring, gu fixed ring passes through cylindrical balancing weight and the one end of location anchor chain one and connects, the other one end of location anchor chain one is connected with anchor one, be provided with the annular groove on the cylindrical body, it is provided with the annular change ring to rotate through the bearing in the annular groove, the outer coaxial counterweight ring that is provided with of annular change ring one, counterweight ring one is evenly provided with a plurality of blade one along circumference outward. The invention has the advantages of good stability, capability of generating electricity by utilizing wave energy and the like.

Description

Ocean monitoring buoy

Technical Field

The invention belongs to the technical field of ocean buoys, and relates to an ocean monitoring buoy.

Background

The marine environment is variable, sometimes windy and beautiful, level as mirrors, sometimes frightening as a horror, growling as a thunder.

In order to better understand the ocean and monitor the ocean dynamics, a large number of ocean monitoring buoys are usually installed in the ocean to monitor the wave height of the waves, the direction of the ocean currents, the temperature, direction and pressure of the seawater.

The general volume of ocean monitoring buoy is less, in the marine environment of big stormy waves, often rocks very badly to can influence the normal work of installing the monitoring facilities on ocean monitoring buoy, even more can lead to the monitoring facilities who installs on ocean monitoring buoy to take place to destroy or the trouble.

In addition, ocean monitoring buoys are generally far from the continent, so the electric energy used by ocean monitoring buoys is generally derived from solar panels arranged on the ocean monitoring buoys. However, when the ocean monitoring buoy runs in a continuous rainy day, the solar panel cannot utilize solar energy to generate electricity, so that the situation that the ocean monitoring buoy is insufficient in power is possibly caused, and the normal work of the ocean monitoring buoy is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the ocean monitoring buoy which has good stability and can generate electricity by utilizing wave energy.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an ocean monitoring buoy, includes body one, the central point of body one side puts the vertical cylindrical body that is provided with, the upper end of cylindrical body is provided with mounting platform, the central point of the downside of body one puts and is provided with the toper balancing weight, the lower extreme of toper balancing weight is provided with solid fixed ring, gu fixed ring passes through cylindrical balancing weight and the one end of location anchor chain one to be connected, the other one end of location anchor chain one is connected with anchor one, be provided with the annular groove on the cylindrical body, rotate through the bearing in the annular groove and be provided with the annular change, the outer coaxial counterweight ring one that is provided with of annular change, the counterweight ring one is evenly provided with a plurality of blade one along circumference outward.

In the ocean monitoring buoy, the mounting platform is provided with the fixed shaft, the fixed shaft is provided with the rotating cap in a rotating mode, the rotating cap is fixedly connected with the counterweight ring II through the supporting rod, the counterweight ring II and the fixed shaft are coaxially arranged, and the plurality of blades II are evenly arranged in the circumferential direction on the outer side of the counterweight ring II.

In foretell ocean monitoring buoy, still be provided with anchor chain two on the anchor chain of location, anchor chain two includes anchor chain section one, elastic buffer section and anchor chain section two, the one end of anchor chain section one is connected with the middle part of anchor chain section one, the other one end of anchor chain section one is connected with the one end of elastic buffer section, the other one end of elastic buffer section and the one end of anchor chain section two are connected, the other one end of anchor chain section two is connected with anchor two.

In the above ocean monitoring buoy, the elastic buffer section is a spring.

In the ocean monitoring buoy, the first floating body is cylindrical, a cavity is formed in the middle of the first floating body, a storage battery is arranged in the cavity, an annular cavity is further formed in the first floating body, the annular cavity and the first floating body are coaxially arranged, a plurality of power generation devices capable of generating power by utilizing wave energy are arranged in the annular cavity, and the power generation devices are electrically connected with the storage battery.

In the ocean monitoring buoy, the bottom of the first floating body is provided with a plurality of first square guide holes, a plurality of first square guide holes correspond to a plurality of power generation devices one by one, the first square guide holes penetrate through the lower side surface and the annular cavity of the first floating body, each power generation device comprises a second floating body, a first movable rod and a second movable rod, the cross section of the first movable rod is square and is arranged in the first square guide holes in a sliding manner, the second floating body is arranged at the lower end of the first movable rod, the side wall of the annular cavity is vertically provided with a metal plate and a guide plate through a support, the guide plate is positioned between the first movable rod and the metal plate, both sides of the metal plate are respectively provided with a piezoelectric material layer, the guide plate is horizontally provided with second square guide holes, the cross section of the second movable rod is square and is arranged in the second square guide holes in a sliding manner, both ends of the second movable rod are respectively and rotatably provided with first rollers, the guide block is vertically arranged on the first movable rod and located in the annular cavity, an arc surface is arranged on one side, opposite to the guide block and the guide plate, of the first roller located on the second movable rod and is always in contact with the piezoelectric material layer on the metal plate, the second roller is always in contact with the arc surface, and the piezoelectric material layer is electrically connected with the storage battery.

In foretell ocean monitoring buoy, still be provided with spacing ring and lower spacing ring on the movable rod one, the size that goes up spacing ring and lower spacing ring all is greater than square guiding hole one and go up the upper and lower both sides that spacing ring and lower spacing ring lie in square guiding hole one respectively, power generation facility still includes reset spring, reset spring overlaps and establishes on movable rod one, reset spring's upper end supports and presses the downside at body one, reset spring's lower extreme supports and presses on spacing ring down.

In the ocean monitoring buoy, the power generation device further comprises a limiting column, the limiting column is horizontally arranged on the side wall of the annular cavity, the end part of the limiting column and the end part of the movable rod II are oppositely arranged, the limiting column and the movable rod II are respectively located on two sides of the metal plate, and a buffer spring is arranged between the piezoelectric material layers on the limiting column and the metal plate.

In the ocean monitoring buoy, the mounting platform is provided with the plurality of warning lamps, and the warning lamps are electrically connected with the storage battery.

In the ocean monitoring buoy, the piezoelectric material layer is made of piezoelectric ceramics or piezoelectric crystals.

Compared with the prior art, the invention has the following advantages:

1. the sea wind blows and can drive counter weight ring one and annular change ring and rotate around the bearing is quick on blade one, can make this ocean monitoring buoy keep relative stability according to the principle of gyroscope dead axle nature in counter weight ring one and the quick rotation in-process of annular change ring, can reduce the range of rocking and the frequency of ocean monitoring buoy to can avoid installing the equipment on ocean monitoring buoy because the too big range of rocking of ocean monitoring buoy and frequency and lead to damaging or can not normal use.

2. The ocean monitoring buoy can generate electricity by using wave energy, so that continuous power supply of electric equipment in the ocean monitoring buoy is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the invention.

Fig. 2 is an enlarged view of a structure at a in fig. 1.

In the figure, 1, a first floating body; 1a, a cavity; 1b, a ring cavity; 1c, a first square guide hole; 2. a cylindrical body; 2a, an annular groove; 3. mounting a platform; 4. a conical counterweight block; 4a, a fixing ring; 5. a cylindrical weight member; 6. positioning a first anchor chain; 6a, positioning anchor chains II; 6b, a first anchor chain segment; 6c, an elastic buffer section; 6d, anchor chain segment II; 7. an anchor I; 7a, an anchor II; 8. a storage battery; 9. a warning light; 11. an annular swivel; 12. a counterweight ring I; 12a, a bearing; 13. a first blade; 14. a fixed shaft; 15. rotating the cap; 16. a counterweight ring II; 17. a support bar; 18. a second blade; 19. a second floating body; 20. a first movable rod; 20a, a lower limit ring; 20b, an upper limiting ring; 21. a return spring; 22. a guide block; 23. a circular arc surface; 24. a metal plate; 25. a layer of piezoelectric material; 26. a limiting column; 27. a buffer spring; 28. a support; 29. a second movable rod; 30. a first roller; 30a and a second roller; 31. a guide plate; 31a and a second square guide hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, an ocean monitoring buoy comprises a floating body I1, a cylindrical body 2 is vertically arranged at the central position of the upper side surface of the floating body I1, a mounting platform 3 is arranged at the upper end of the cylindrical body 2, a conical balancing weight 4 is arranged at the central position of the lower side surface of the floating body I1, a fixing ring 4a is arranged at the lower end of the conical balancing weight 4, the fixing ring 4a is connected with one end of a positioning anchor chain I6 through a cylindrical balancing weight 5, the other end of the positioning anchor chain I6 is connected with an anchor I7, an annular groove 2a is formed in the cylindrical body 2, an annular rotating ring 11 is arranged in the annular groove 2a in a rotating mode through a bearing 12a, a first balancing ring 12 is coaxially arranged outside the annular rotating ring 11, and a plurality of blades I13 are evenly arranged outside the first balancing ring 12 along the circumferential direction.

The first positioning anchor chain 6 and the first anchor 7 fix the ocean monitoring buoy on the seabed, so that the ocean monitoring buoy can only drift within the range limited by the first positioning anchor chain 6;

toper balancing weight 4 sets up the downside at body 1, and toper balancing weight 4 is the taper shape of invering, follows up diameter grow gradually from down promptly, and the structure of inversion taper shape can be so that the ocean monitoring buoy when rocking in the wave, has better performance of resetting, can improve the stability of ocean monitoring buoy.

In addition, the conical balancing weight 4 can also reduce the gravity center of the whole ocean monitoring buoy, so that the resetting performance of the ocean monitoring buoy is further improved, and the principle is similar to that of a tumbler.

According to the principle of the gyro axis-fixing property, the following characteristics are obtained: a rotating object has a fixed axis property, and for example, a rotating top or a rolling wheel is not easily tilted, and has a characteristic of maintaining the axial direction.

The sea wind blows and can drive counter weight ring one 12 and annular change 11 on blade 13 and rotate around bearing 12a fast, can make this ocean monitoring buoy keep relative stability according to the principle of gyroscope dead center nature in counter weight ring one 12 and annular change 11's the fast rotation in-process, can reduce the range of rocking and the frequency of ocean monitoring buoy to can avoid installing the equipment on ocean monitoring buoy because the too big range of rocking of ocean monitoring buoy and frequency and lead to damaging or can not normal use.

And the greater the wind waves, the greater the force on the first blades 13 and the greater the rotational speed of the first counterweight ring 12 and the annular swivel 11, and thus the greater the ability of the ocean to maintain buoy stability.

Particularly, be provided with fixed axle 14 on mounting platform 3, it is provided with and rotates cap 15 to rotate on the fixed axle 14, it has counterweight ring two 16 to link firmly through bracing piece 17 on the cap 15 to rotate, counterweight ring two 16 and the coaxial setting of fixed axle 14, the circumference in the counterweight ring two 16 outsides evenly is provided with a plurality of blade two 18.

Similarly, the second counterweight ring 16 and the second rotating cap 15 are driven to rotate around the fixed shaft 14 quickly by the blowing of the sea wind on the second blades 18, and the larger the wind waves are, the larger the stress on the second blades 18 is, and the larger the rotating speed of the second counterweight ring 16 and the rotating cap 15 is, so that the capability of the ocean monitoring buoy in keeping relative stability in the weather of high wind waves can be further improved according to the principle of the gyroscopic coaxiality.

Specifically, a second positioning anchor chain 6a is further arranged on the first positioning anchor chain 6, the second positioning anchor chain 6a comprises a first anchor chain segment 6b, an elastic buffer segment 6c and a second anchor chain segment 6d, one end of the first anchor chain segment 6b is connected with the middle of the first positioning anchor chain 6, the other end of the first anchor chain segment 6b is connected with one end of the elastic buffer segment 6c, the other end of the elastic buffer segment 6c is connected with one end of the second anchor chain segment 6d, and the other end of the second anchor chain segment 6d is connected with a second anchor 7 a.

The first 6 of location anchor chain fixes this ocean monitoring buoy at the seabed, but the length of location anchor chain 6 is certain, and when rising tide, the surface of water is far away from the vertical distance of anchor 7, and the scope that this ocean monitoring buoy can drift is less, and when falling tide, the surface of water is nearer apart from the vertical distance of anchor 7, and the scope that ocean monitoring buoy can drift this moment grow to influence the precision of monitoring.

The arrangement of the positioning anchor chain II 6a can just avoid the problem that the drifting range of the ocean monitoring buoy is enlarged when the tide is ebb; the first anchor 7 and the second anchor 7a are respectively thrown in two directions of the sea bottom, and when tide rises, the first positioning anchor chain 6 pulls the second positioning anchor chain 6a to extend, so that the ocean monitoring buoy floats on the sea surface;

when the tide moves back, under the effect of the elastic buffer section 6c on the positioning anchor chain II 6a, the positioning anchor chain II 6a shortens, and the positioning anchor chain II 6a can pull the positioning anchor chain I6 to move towards the seabed, so that the effect of limiting the drift range of the ocean monitoring buoy is achieved, the fixing effect of the ocean monitoring buoy is improved, and the precision of the monitoring position is improved.

In particular, said elastic buffer section 6c is a spring.

The spring can play the length of adjusting and positioning anchor chain two 6a, and tensile and recovery effect is good, and the control range is big, can improve this ocean monitoring buoy's fixed effect.

Specifically, the floating body I1 is cylindrical, a cavity 1a is formed in the middle of the floating body I1, a storage battery 8 is arranged in the cavity 1a, an annular cavity 1b is further formed in the floating body I1, the annular cavity 1b and the floating body I1 are coaxially arranged, a plurality of power generation devices capable of generating power by utilizing wave energy are arranged in the annular cavity 1b, and the power generation devices are electrically connected with the storage battery 8.

The power generation device can generate power by using wave energy, and the waves exist in the ocean all the time, so the power generation device can generate power continuously, and the power utilization equipment in the ocean monitoring buoy is ensured to be supplied with power continuously all the time.

In addition, also can set up solar panel on this ocean monitoring buoy's mounting platform 3, solar panel and battery 8 electricity are connected to can realize utilizing the multipotency source to supply power for battery 8, and then guarantee this ocean monitoring buoy job stabilization nature.

Specifically, the bottom of the floating body I1 is provided with a plurality of square guide holes I1 c, the square guide holes I1 c correspond to a plurality of power generation devices one by one, the square guide holes I1 c penetrate through the lower side surface of the floating body I1 and the annular cavity 1b, each power generation device comprises a floating body II 19, a movable rod I20 and a movable rod II 29, the cross section of the movable rod I20 is square and is arranged in the square guide holes I1 c in a sliding mode, the floating body II 19 is arranged at the lower end of the movable rod I20, a metal plate 24 and a guide plate 31 are vertically arranged on the side wall of the annular cavity 1b through a support 28, the guide plate 31 is located between the movable rod I20 and the metal plate 24, the two sides of the metal plate 24 are both provided with piezoelectric material layers 25, the square guide holes II 31a are horizontally arranged on the guide plate 31, the cross section of the movable rod II 29 is square and is arranged in the square guide holes II 31a in a sliding, two ends of the second movable rod 29 are respectively provided with a first roller 30 and a second roller 30a in a rotating mode, a guide block 22 is vertically arranged on the first movable rod 20, the guide block 22 is located in the annular cavity 1b, one side, opposite to the guide block 22 and the guide plate 31, of the guide block 22 is provided with an arc surface 23, the first roller 30 on the second movable rod 29 is located and always contacts with the piezoelectric material layer 25 on the metal plate 24, the second roller 30a always contacts with the arc surface 23, and the piezoelectric material layer 25 is electrically connected with the storage battery 8.

Specifically, the metal plate 24 is made of a memory metal, so that the metal plate 24 can be deformed by an external force and can be quickly restored to its original shape after the external force is removed.

The maximum distance between the first roller 30 and the second roller 30a on the second movable rod 29 is equal to the maximum distance between the circular arc surface 23 of the guide block 22 and the piezoelectric material layer 25 on the side, opposite to the circular arc surface 23, of the metal plate 24. That is, when the second roller 30a moves to the point on the arc surface 23 farthest from the metal plate 24, the metal plate 24 is just restored to its original shape, and no deformation occurs.

The first square guide hole 1c is matched with the first movable rod 20 with the square cross section, so that the first movable rod 20 can be prevented from rotating, and the second roller 30a can be ensured to roll on the arc surface 23 all the time.

When wave waves act on the second floating body 19 when meeting wave crests, the wave waves apply an upward thrust to the second floating body 19, the first movable rod 20 moves upwards, the second movable rod 29 moves leftwards under the action of the circular arc surface 23, the metal plate 24 and the piezoelectric material layer 25 deform under the action of the second movable rod 29, and the piezoelectric material layer 25 generates electric energy;

when the wave meets the wave trough, the force applied to the second floating body 19 by the wave disappears, the first movable rod 20 moves downwards under the action of the gravity of the first movable rod 20 and the second floating body 19, the second movable rod 29 moves rightwards under the action of the restoring force of the metal plate 24, and the metal plate 24 is gradually restored to the original shape.

Under the action of the next wave crest and wave trough, the metal plate 24 and the piezoelectric material layer 25 repeat the above state, are continuously deformed and then restored, so that electric energy is continuously generated, and the electric energy is stored in the storage battery 8 for the electric equipment in the ocean monitoring buoy.

Specifically, the upper limit ring 20b and the lower limit ring 20a are further arranged on the movable rod one 20, the sizes of the upper limit ring 20b and the lower limit ring 20a are larger than the size of the square guide hole one 1c, the upper limit ring 20b and the lower limit ring 20a are respectively located on the upper side and the lower side of the square guide hole one 1c, the power generation device further comprises a return spring 21, the return spring 21 is sleeved on the movable rod one 20, the upper end of the return spring 21 abuts against the lower side surface of the floating body one 1, and the lower end of the return spring 21 abuts against the lower limit ring 20 a.

The upper limiting ring 20b and the lower limiting ring 20a play a role in limiting the stroke of the first movable rod 20, and the roller pair 30a on the second movable rod 29 is prevented from being separated from the arc surface 23 of the guide block 22 due to the overlarge stroke of the first movable rod 20.

The return spring 21 plays a buffering role, so that the up-and-down motion of the first movable rod 20 is more stable, the return spring 21 can also provide a restoring force for the second movable rod 29, namely, the wave acts on the second floating body 19 when meeting a wave crest, the wave applies an upward thrust to the second floating body 19, the first movable rod 20 moves upwards, the force applied to the second floating body 19 by the wave disappears when meeting a wave trough, and the first movable rod 20 can be quickly reset downwards under the action of the return spring 21, so that the working efficiency is improved.

Specifically, the power generation device further comprises a limiting column 26, the limiting column 26 is horizontally arranged on the side wall of the annular cavity 1b, the end portion of the limiting column 26 is opposite to the end portion of the second movable rod 29, the limiting column 26 and the second movable rod 29 are respectively located on two sides of the metal plate 24, and a buffer spring 27 is arranged between the limiting column 26 and the piezoelectric material layer 25 on the metal plate 24.

The limiting column 26 plays a role in controlling the maximum deformation of the metal plate 24, so that the metal plate 24 can be restored after deformation, and the situation that the metal plate 24 cannot be restored due to excessive deformation and normal operation of the power generation device is influenced is avoided.

The buffer spring 27 plays a role of buffering, so that the metal plate 24 can work more stably under the action of the second movable rod 29, and the reliability of the power generation device is improved.

Specifically, a plurality of warning lamps 9 are arranged on the mounting platform 3, and the warning lamps 9 are electrically connected with the storage battery 8.

The warning light 9 can be to the marine monitoring buoy radiation light all around, provides the warning effect for past boats and ships, avoids boats and ships and marine monitoring buoy to bump to play the effect of protection marine monitoring buoy.

Specifically, the material of the piezoelectric material layer 25 is piezoelectric ceramic or piezoelectric crystal. Preferably a piezoelectric crystal.

Those skilled in the art to which the invention relates may effect alterations, additions or substitutions in the described embodiments without departing from the spirit or ambit of the invention as defined in the accompanying claims.

Claims

1. An ocean monitoring buoy comprises a first floating body (1) and is characterized in that a cylindrical body (2) is vertically arranged at the central position of the upper side face of the first floating body (1), a mounting platform (3) is arranged at the upper end of the cylindrical body (2), a conical balancing weight (4) is arranged at the central position of the lower side face of the first floating body (1), a fixing ring (4a) is arranged at the lower end of the conical balancing weight (4), the fixing ring (4a) is connected with one end of a first positioning anchor chain (6) through a cylindrical balancing weight (5), the other end of the first positioning anchor chain (6) is connected with a first anchor (7), an annular groove (2a) is formed in the cylindrical body (2), an annular rotating ring (11) is rotatably arranged in the annular groove (2a) through a bearing (12a), a first counterweight ring (12) is coaxially arranged outside the annular rotating ring (11), a plurality of first blades (13) are uniformly arranged on the outer edge of the first counterweight ring (12) along the circumferential direction;

still be provided with two (6a) of anchor chain on the anchor chain of location (6), two (6a) of anchor chain of location include anchor chain section (6b), elasticity buffer segment (6c) and anchor chain section two (6d), the one end of anchor chain section (6b) and the middle part of anchor chain section (6) are connected, the other one end of anchor chain section (6b) and the one end of elasticity buffer segment (6c) are connected, the other one end of elasticity buffer segment (6c) and the one end of anchor chain section two (6d) are connected, the other one end of anchor chain section two (6d) is connected with anchor two (7 a).

2. The ocean monitoring buoy of claim 1, wherein a fixed shaft (14) is arranged on the mounting platform (3), a rotating cap (15) is rotatably arranged on the fixed shaft (14), a counterweight ring II (16) is fixedly connected to the rotating cap (15) through a supporting rod (17), the counterweight ring II (16) and the fixed shaft (14) are coaxially arranged, and a plurality of blades II (18) are uniformly arranged in the circumferential direction outside the counterweight ring II (16).

3. An ocean monitoring buoy according to claim 2 characterized in that the resilient buffer section (6c) is a spring.

4. The ocean monitoring buoy of claim 1, 2 or 3, wherein the floating body I (1) is cylindrical, a cavity (1a) is formed in the middle of the floating body I (1), a storage battery (8) is arranged in the cavity (1a), an annular cavity (1b) is further formed in the floating body I (1), the annular cavity (1b) and the floating body I (1) are coaxially arranged, a plurality of power generation devices capable of generating power by utilizing wave energy are arranged in the annular cavity (1b), and the power generation devices are electrically connected with the storage battery (8).

5. The ocean monitoring buoy of claim 4, wherein a plurality of square guide holes I (1c) are formed in the bottom of the first floating body (1), a plurality of the square guide holes I (1c) correspond to a plurality of power generation devices one by one, the square guide holes I (1c) penetrate through the lower side surface of the first floating body (1) and the annular cavity (1b), the power generation devices comprise a second floating body (19), a first movable rod (20) and a second movable rod (29), the cross section of the first movable rod (20) is square and is arranged in the square guide holes I (1c) in a sliding mode, the second floating body (19) is arranged at the lower end of the first movable rod (20), a metal plate (24) and a guide plate (31) are vertically arranged on the side wall of the annular cavity (1b) through a support (28), and the guide plate (31) is located between the first movable rod (20) and the metal plate (24), the two sides of the metal plate (24) are respectively provided with a piezoelectric material layer (25), the guide plate (31) is horizontally provided with a second square guide hole (31a), the cross section of the second movable rod (29) is square and is arranged in the second square guide hole (31a) in a sliding manner, two ends of the second movable rod (29) are respectively provided with a first roller (30) and a second roller (30a) in a rotating way, a guide block (22) is vertically arranged on the first movable rod (20), the guide block (22) is positioned in the annular cavity (1b), one side of the guide block (22) opposite to the guide plate (31) is provided with an arc surface (23), a roller I (30) positioned on the second movable rod (29) is always contacted with the piezoelectric material layer (25) on the metal plate (24), the second roller (30a) is always in contact with the arc surface (23), and the piezoelectric material layer (25) is electrically connected with the storage battery (8).

6. The ocean monitoring buoy of claim 5, wherein the first movable rod (20) is further provided with an upper limiting ring (20b) and a lower limiting ring (20a), the upper limiting ring (20b) and the lower limiting ring (20a) are both larger than the square guide hole I (1c) in size, the upper limiting ring (20b) and the lower limiting ring (20a) are respectively located at the upper side and the lower side of the square guide hole I (1c), the power generation device further comprises a return spring (21), the return spring (21) is sleeved on the first movable rod (20), the upper end of the return spring (21) abuts against the lower side surface of the first floating body (1), and the lower end of the return spring (21) abuts against the lower limiting ring (20 a).

7. The ocean monitoring buoy of claim 6, wherein the power generation device further comprises a limiting column (26), the limiting column (26) is horizontally arranged on the side wall of the annular cavity (1b), the end portion of the limiting column (26) and the end portion of the second movable rod (29) are arranged oppositely, the limiting column (26) and the second movable rod (29) are respectively located on two sides of the metal plate (24), and a buffer spring (27) is arranged between the limiting column (26) and the piezoelectric material layer (25) on the metal plate (24).

8. An ocean monitoring buoy according to claim 7, characterized in that the mounting platform (3) is provided with a plurality of warning lights (9), the warning lights (9) being electrically connected to the storage battery (8).

9. A marine monitoring buoy according to claim 8, characterized in that the material of the piezoelectric material layer (25) is a piezoelectric ceramic or a piezoelectric crystal.