Buoyancy power generation device

Abstract

The buoyancy power generation device comprises a floating box body and a power generation mechanism which are in transmission connection through a transmission mechanism, the floating box body is slidably connected to a first supporting structure, and the floating box body slides in the direction perpendicular to the water surface; the power generation mechanism is arranged on the second supporting structure and comprises a first power generator and a second power generator which move in the same direction, in the descending process of the floating box body, one of the first power generator and the second power generator is connected with the power output end of the transmission mechanism, and the other is separated from the power output end of the transmission mechanism; the second one of the first generator and the second generator is connected with the power output end of the transmission mechanism, and the first one is separated from the power output end of the transmission mechanism. According to the buoyancy power generation device, the situation that the generator rotates forwards and rotates backwards sometimes is avoided, abrasion caused by the fact that the bearing bears unexpected loads is reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of power generation devices, and in particular to a buoyancy power generation device. Background Art

[0002] Buoyancy power generation is a method of generating electricity by using the buoyancy of water. It uses the movement of a floating body floating up and down in the water to drive a generator to generate electricity. The up and down movement of the floating body is converted into mechanical energy to drive the generator to generate electricity. This can be achieved through a variety of transmission structures, such as using a connecting rod mechanism, a hydraulic system, or directly connected to the generator through a cable. When the floating body is rising or falling, the transmission structure drives the generator's shaft to rotate. The generator generates a magnetic field through the rotation of the rotor. The magnetic field lines pass through the coil when rotating, thereby inducing an electric potential and then generating current. As long as the rotor is rotating, it can generate a magnetic field and induce an electric potential, thereby achieving the purpose of power generation.

[0003] In the prior art, when the floating body moves up and down, the same generator is used to generate electricity. When the floating body rises or falls, the generator will sometimes rotate forward and sometimes reverse. The bearings of the generator are generally designed for rotation in a specific direction. If the generator rotates forward continuously, the reverse rotation will cause the bearing to bear unexpected loads, accelerate wear, and even cause bearing damage. Summary of the invention

[0004] In view of this, the present invention provides a buoyant power generation device, which avoids the situation where the generator sometimes rotates forward and sometimes reverses, avoids the supporting bearings of the generator from being subjected to unexpected loads, reduces the wear of the bearings caused by unexpected loads, and extends the service life of the bearings.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A buoyancy power generation device comprises a floating box and a power generation mechanism connected by a transmission mechanism, wherein the floating box is slidably connected to a first supporting structure, and the floating box slides in a direction perpendicular to the water surface; the power generation mechanism is arranged on a second supporting structure, and the power generation mechanism comprises a first generator and a second generator moving in the same direction, during the descent of the floating box, the first of the first generator and the second generator is connected to the power output end of the transmission mechanism, and the second is disconnected from the power output end of the transmission mechanism, and during the ascent of the floating box, the second of the first generator and the second generator is connected to the power output end of the transmission mechanism, and the first is disconnected from the power output end of the transmission mechanism.

[0007] Optionally, the second supporting structure includes a supporting base plate, on which a first movable support plate and a second movable support plate are arranged, the first generator is fixedly connected to the first movable support plate, the second generator is fixedly connected to the second movable support plate, and the first movable support plate and the second movable support plate move in the same direction on the supporting base plate when driven by a driving device.

[0008] Optionally, the driving device includes a driving motor and a screw, the power output end of the driving motor is connected to the screw, the screw is rotatably arranged on the supporting bottom plate, and the first movable support plate and the second movable support plate are threadedly connected to the screw;

[0009] The first movable support plate and the second movable support plate are restricted in rotation by limiting grooves arranged along the moving direction.

[0010] Optionally, the transmission mechanism includes a power output shaft, which is rotatably connected to the second support structure, and a first connecting end is provided at one end of the power output shaft, and a third connecting end is provided at the shaft end of the first generator, and the first connecting end and the third connecting end are plugged in along the moving direction of the first generator; a second connecting end is provided at the other end of the power output shaft, and a fourth connecting end is provided at the shaft end of the second generator, and the second connecting end and the fourth connecting end are plugged in along the moving direction of the second generator.

[0011] Optionally, the transmission mechanism further comprises a meshing sprocket set and a chain, the sprocket set is rotatably connected to the second supporting structure, the chain is connected to the sprocket set, and the chain is connected to the floating box;

[0012] Alternatively, the transmission mechanism includes a meshing pulley set and a conveyor belt, the pulley set is rotatably connected to the second supporting structure, the conveyor belt is connected to the pulley set, and the conveyor belt is connected to the floating box.

[0013] Optionally, the sprocket set includes a first sprocket and a second sprocket, the first sprocket is rotatably connected to the top of the second supporting structure, the second sprocket is rotatably connected to the bottom of the second supporting structure, and the chain is wound around and connected to the first sprocket and the second sprocket;

[0014] The first sprocket is connected to the power output shaft and is used for driving the power output shaft to rotate.

[0015] Optionally, the pulley group includes a first pulley and a second pulley, the first pulley is rotatably connected to the top of the second supporting structure, the second pulley is rotatably connected to the bottom of the second supporting structure, the conveyor belt is wound around the first pulley and the second pulley, and the first pulley is connected to the power output shaft for driving the power output shaft to rotate.

[0016] Optionally, the floating box includes a sealed cavity, a top of the sealed cavity is provided with an air inlet, and the air inlet is connected to a high-pressure air pump through a pipeline;

[0017] The floating box is provided with a water inlet and an exhaust port connected with the sealed cavity, the water inlet is provided at the bottom of the floating box or near the bottom, the exhaust port is provided at the top of the floating box, the water inlet is provided with a first valve, and the exhaust port is provided with a second valve;

[0018] The high-pressure air pump, the first valve and the second valve are communicatively connected to the controller.

[0019] Optionally, the first supporting structure comprises a first supporting frame, a sliding rod arranged vertically on the water surface is provided on the first supporting frame, and the floating box is slidably connected to the sliding rod via a first connecting plate.

[0020] Optionally, the first support frame is a support frame, and the sliding rod is fixedly connected to the support frame;

[0021] Two support frames are provided, and the two support frames are respectively arranged on both sides of the floating box body. Both sides of the floating box body are slidably connected to the sliding rod through one of the first connecting plates.

[0022] It can be seen from the above technical scheme that the buoyant power generation device provided by the present invention, wherein the power generation mechanism includes a first generator and a second generator moving in the same direction, and by controlling the moving distance of the two generators, when one of the generators is connected to the power output end of the transmission mechanism, the other generator is disconnected from the power output end of the transmission mechanism, and by changing the positions of the first generator and the second generator, when the floating box is in an ascending state, the power output end of the transmission mechanism is connected to the power input end of one of the generators, and when it is in a descending state, the power output end of the transmission mechanism is connected to the power input end of the other generator, and this cycle is repeated, thereby avoiding the situation where the generator sometimes rotates forward and sometimes reverses, so that the two generators can both rotate in one direction, avoiding the support bearings of the generators from being subjected to unexpected loads, reducing the wear of the bearings caused by unexpected loads, and extending the service life of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a buoyancy power generation device provided by an embodiment of the present invention from one angle;

[0025] Figure 2 A schematic structural diagram of a buoyancy power generation device provided by an embodiment of the present invention from another angle;

[0026] Figure 3 A schematic diagram of the structure of a power generation mechanism provided by an embodiment of the present invention;

[0027] Figure 4 for Figure 3 A local enlarged structural diagram of the A part;

[0028] Figure 5 A partially enlarged structural schematic diagram of the installation positions of the first generator and the second generator provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the partially enlarged structure of the connection position between the first generator and the power output shaft provided in an embodiment of the present invention.

[0030] in:

[0031] 1. First base, 2. First support frame, 3. Sliding rod, 4. Second support frame,

[0032] 5. First connecting plate, 6. Second movable support plate, 7. Supporting bottom plate, 8. First movable support plate,

[0033] 9. Exhaust port, 10. High-pressure air pump, 11. Floating box, 12. Second connecting plate,

[0034] 13. Water inlet, 14. Chain, 15. Second base, 16. Screw, 17. Second sprocket,

[0035] 18. Supporting shaft, 19. Second connecting ear plate, 20. Supporting end plate, 21. Driving motor,

[0036] 22. Limiting groove, 23. Second generator, 24. First generator, 25. First insert gear,

[0037] 26. first slot, 27. first sprocket, 28. power output shaft, 29. second toothing,

[0038] 30. First connecting ear plate. DETAILED DESCRIPTION

[0039] The invention discloses a buoyancy power generation device, which avoids the situation that the generator rotates forward and reversely at times, avoids the support bearing of the generator from being subjected to unexpected loads, reduces the wear of the bearing caused by the unexpected load, and prolongs the service life of the bearing.

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 5 The buoyancy power generation device of the present invention comprises a floating box 11 and a power generation mechanism connected by a transmission mechanism. The floating box 11 is slidably connected to the first supporting structure, and the floating box 11 slides in a direction perpendicular to the water surface, so that the floating box 11 can float and sink on the water. The power generation mechanism is arranged on the second supporting structure, and the power generation mechanism comprises a first generator 24 and a second generator 23 moving in the same direction. During the descent of the floating box 11, the first of the first generator 24 and the second generator 23 is connected to the power output end of the transmission mechanism, and the second is disconnected from the power output end of the transmission mechanism. During the ascent of the floating box 11, the second of the first generator 24 and the second generator 23 is connected to the power output end of the transmission mechanism, and the first is disconnected from the power output end of the transmission mechanism.

[0042] The buoyant power generation device of the present invention comprises a first generator 24 and a second generator 23 moving in the same direction. By controlling the moving distance of the two generators, when one of the generators is connected to the power output end of the transmission mechanism, the other generator is disconnected from the power output end of the transmission mechanism. By changing the positions of the first generator 24 and the second generator 23, when the floating box 11 is in an ascending state, the power output end of the transmission mechanism is connected to the power input end of one of the generators, and when it is in a descending state, the power output end of the transmission mechanism is connected to the power input end of the other generator, and this cycle repeats, thereby avoiding the situation where the generators sometimes rotate forward and sometimes reverse, so that the two generators can both rotate in one direction, avoiding the support bearings of the generators from being subjected to unexpected loads, reducing the wear of the bearings caused by unexpected loads, and extending the service life of the bearings.

[0043] Among them, the first supporting structure includes a first supporting frame 2, on which a sliding rod 3 is arranged vertically on the water surface, and the floating box 11 is slidably connected to the sliding rod 3 through a first connecting plate 5. Through the above structural setting, the sliding direction of the floating box 11 is limited, so that the floating box 11 is lifted and lowered in the set direction.

[0044] In one embodiment, the first support frame 2 is a support frame, such as Figure 1 As shown, the support frame is a hollow frame structure, and the slide bar 3 is fixedly connected to the support frame. By setting the first support frame 2 as a hollow frame structure, the first support frame 2 is prevented from affecting the flow of water. The bottom of the first support frame 2 is fixedly connected to the first base 1, and the first base 1 is connected to the bottom of the water. In other embodiments, the first support frame 2 can also be a plate body or a frame body, which is not limited here. In order to improve the reliability of the support, two support frames are provided, and the two support frames are respectively arranged on both sides of the floating box 11, and the two sides of the floating box 11 are each slidably connected to the slide bar 3 on the corresponding side through a first connecting plate 5.

[0045] Furthermore, the second supporting structure includes a supporting base plate 7, on which a first movable support plate 8 and a second movable support plate 6 are arranged. Figure 5 As shown, the first generator 24 is fixedly connected to the first mobile support plate 8, the second generator 23 is fixedly connected to the second mobile support plate 6, and the first mobile support plate 8 and the second mobile support plate 6 are driven by the driving device to move in the same direction on the supporting bottom plate 7. The second supporting structure also includes a second supporting frame 4, the second supporting frame 4 is connected to the second base 15, and the second base 15 is connected to the foundation on the bottom of the water.

[0046] In order to facilitate driving the first generator 24 and the second generator 23 to move in the same direction, the driving device includes a driving motor 21 and a screw 16, the power output end of the driving motor 21 is connected to the screw 16, and the screw 16 is rotatably arranged on the support base plate 7. Specifically, support end plates 20 are arranged at both ends of the support base plate 7, and the ends of the screw 16 are rotatably connected to the support end plates 20 through bearings. The first movable support plate 8 and the second movable support plate 6 are both provided with threaded through holes, and the threaded through holes are threadedly connected to the screw 16. In order to limit the first movable support plate 8 and the second movable support plate 6 from rotating with the screw 16, a guide structure is also provided on the support base plate 7. In one embodiment, a limiting groove 22 is provided on the support bottom plate 7, and the limiting groove 22 is a guide structure, and the limiting groove 22 is extended along the moving direction of the generator, and a first limiting block (not shown in the figure) is provided on the surface of the first movable support plate 8 corresponding to the limiting groove 22, and a second limiting block (not shown in the figure) is provided on the surface of the second movable support plate 6 corresponding to the limiting groove 22, and the first limiting block and the second limiting block are slidably connected in the limiting groove 22. Further, as Figure 5As shown, the first limit block and the second limit block are arranged on the bottom surface of the corresponding movable support plate. When the screw rod 16 rotates, the first movable support plate 8 and the second movable support plate 6 tend to rotate with the screw rod 16. Since the first limit block and the second limit block are slidably arranged in the limit groove 22, the first movable support plate 8 and the second movable support plate 6 can only move in a straight line along the screw rod 16.

[0047] The transmission mechanism includes a power output shaft 28, which is rotatably connected to the second support frame 4. Specifically, the top of the second support frame 4 is connected to two first connecting ear plates 30, such as Figure 5 and Figure 6 As shown, the power output shaft 28 is rotatably connected to the two first connecting lugs 30. A first connecting end is provided at one end of the power output shaft 28, and a third connecting end is provided at the shaft end of the first generator 24, and the first connecting end and the third connecting end are plugged in along the moving direction of the first generator 24. A second connecting end is provided at the other end of the power output shaft 28, and a fourth connecting end is provided at the shaft end of the second generator 23, and the second connecting end and the fourth connecting end are plugged in along the moving direction of the second generator 23.

[0048] In one embodiment, the first connecting end is provided with a first slot 26 arranged parallel to its axis, and the third connecting end is provided with a first inserting tooth 25 arranged parallel to its axis. The first slot 26 and the first inserting tooth 25 are arranged correspondingly. Figure 6 As shown, the first insert tooth 25 is inserted into the first slot 26, so as to transmit the rotation of the power output shaft 28 to the first generator 24 for the first generator 24 to generate electricity. It can be understood that in order to ensure the reliability of the rotation transmission, a plurality of first insert teeth 25 and first slots 26 are provided. Similarly, the second connecting end is provided with a second slot arranged parallel to its axis, and the fourth connecting end is provided with a second insert tooth 29 arranged parallel to its axis, and the second slot is inserted into the second insert tooth 29.

[0049] In order to transmit the rising or falling motion of the floating box 11 to the power output shaft 28, in one embodiment, the transmission mechanism also includes a meshing sprocket set and a chain 14, the sprocket set is rotatably connected to the second support frame 4, the chain 14 is connected to the sprocket set, and the chain 14 is connected to the floating box 11 through a second connecting plate 12. One end of the second connecting plate 12 is fixedly connected to the floating box 11, and the other end is fixedly connected to the chain 14. The fixed connection here can be connected by a connecting piece or by welding, which is not limited here. Among them, the sprocket set includes a first sprocket 27 and a second sprocket 17, the first sprocket 27 is connected to the power output shaft 28, that is, the first sprocket 27 is rotatably connected to the top of the second support frame 4. A second connecting ear plate 19 is provided at the bottom of the second support frame 4, and two second connecting ear plates 19 are provided, and the two second connecting ear plates 19 are arranged at a set distance. The two second connecting ear plates 19 are rotatably connected to the support shaft 18, and the support shaft 18 is rotatably connected to the second connecting ear plate 19 through a bearing. The second sprocket 17 is fixedly connected to the supporting shaft 18, and the chain 14 is wound around the first sprocket 27 and the second sprocket 17, and the first sprocket 27 and the second sprocket 17 are used to support the chain 14. The first sprocket 27 is connected to the power output shaft 28, and the first sprocket 27 is used to drive the power output shaft 28 to rotate.

[0050] In another embodiment, the transmission mechanism includes a meshed pulley set and a conveyor belt, the pulley set is rotatably connected to the second support frame 4, the conveyor belt is connected to the pulley set, and the conveyor belt is connected to the floating box 11 through the second connecting plate 12. The pulley set includes a first pulley and a second pulley, the first pulley is rotatably connected to the top of the second support frame 4, the second pulley is rotatably connected to the bottom of the second support frame 4, the connection structure of the first pulley refers to the first sprocket 27, the connection structure of the second pulley refers to the second sprocket 17, and the conveyor belt is wound around and connected to the first pulley and the second pulley.

[0051] Specifically, the floating box 11 includes a sealed cavity, the top of which is provided with an air inlet, which is connected to the high-pressure air pump 10 through a pipeline, and the high-pressure air pump 10 is used to provide high-pressure air for the sealed cavity of the floating box 11. The floating box 11 is provided with a water inlet 13 and an exhaust port 9 connected to the sealed cavity, the water inlet 13 is provided at the bottom of the floating box 11 or near the bottom, the exhaust port 9 is provided at the top of the floating box 11, the water inlet 13 is provided with a first valve, and the exhaust port 9 is provided with a second valve. The high-pressure air pump 10, the first valve and the second valve are connected to the controller in communication, and the high-pressure air pump 10, the first valve and the second valve are controlled by the controller.

[0052] In the initial state, the overall density of the floating box 11 is slightly smaller than the density of water, so that most of the volume of the floating box 11 is located above the water surface, and the position of the water inlet 13 is not higher than the water surface, so that the water inlet 13 can take in water when the first valve is opened.

[0053] When the floating box 11 is on the water surface, at this time, the first generator 24 is plugged into the power output shaft 28, the second generator 23 is disconnected from the power output shaft 28, the first valve and the second valve are opened, and water enters the sealed cavity of the floating box 11 through the water inlet 13. The second valve is opened to facilitate the discharge of gas in the sealed cavity when water enters, so as to facilitate the entry of liquid. After the entry of liquid, the floating box 11 slowly descends. During the entire sinking process of the floating box 11, the first valve and the second valve are both in an open state. When the floating box 11 sinks into the water and needs to rise, the first generator 24 is disconnected from the power output shaft 28, the second generator 23 is plugged into the power output shaft 28, and high-pressure gas is injected into the floating box 11 through the high-pressure air pump 10. At this time, the second valve is closed, the first valve is opened, and the liquid in the floating box 11 is gradually emptied. Under the action of buoyancy, the floating box 11 gradually moves up.

[0054] The buoyancy power generation device of the present invention drives the screw 16 to rotate by driving the motor 21, and the screw 16 drives the first movable support plate 8 and the second movable support plate 6 to move in the same direction, so that the two generators move in the same direction, the spline of one generator is disengaged from the slot, and the spline of the other generator is plugged into the slot, and the power output shaft 28 can drive the other generator to work.

[0055] In the description of this solution, it should be understood that the terms "upper", "lower", "vertical", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this solution.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this solution, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0058] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buoyancy power generation device, characterized in that: It includes a floating box and a power generation mechanism connected by a transmission mechanism, the floating box is slidably connected to a first supporting structure, and the floating box slides in a direction perpendicular to the water surface; the power generation mechanism is arranged on a second supporting structure, and the power generation mechanism includes a first generator and a second generator moving in the same direction, during the descent of the floating box, the first of the first and the second generators is connected to the power output end of the transmission mechanism, and the second is disconnected from the power output end of the transmission mechanism, and during the ascent of the floating box, the second of the first and the second generators is connected to the power output end of the transmission mechanism, and the first is disconnected from the power output end of the transmission mechanism.

2. The buoyancy power generation device according to claim 1, characterized in that: The second supporting structure includes a supporting base plate, on which a first movable support plate and a second movable support plate are arranged, the first generator is fixedly connected to the first movable support plate, the second generator is fixedly connected to the second movable support plate, and the first movable support plate and the second movable support plate move in the same direction on the supporting base plate under the drive of the driving device.

3. The buoyancy power generation device according to claim 2, characterized in that: The driving device comprises a driving motor and a screw, wherein a power output end of the driving motor is connected to the screw, the screw is rotatably arranged on the supporting bottom plate, and the first movable support plate and the second movable support plate are threadedly connected to the screw; The first movable support plate and the second movable support plate are restricted in rotation by limiting grooves arranged along the moving direction.

4. The buoyancy power generation device according to claim 1, characterized in that: The transmission mechanism includes a power output shaft, which is rotatably connected to the second supporting structure. A first connecting end is provided at one end of the power output shaft, and a third connecting end is provided at the shaft end of the first generator. The first connecting end and the third connecting end are plugged in along the moving direction of the first generator; a second connecting end is provided at the other end of the power output shaft, and a fourth connecting end is provided at the shaft end of the second generator. The second connecting end and the fourth connecting end are plugged in along the moving direction of the second generator.

5. The buoyancy power generation device according to claim 4, characterized in that: The transmission mechanism further comprises a meshing sprocket set and a chain, wherein the sprocket set is rotatably connected to the second supporting structure, the chain is connected to the sprocket set, and the chain is connected to the floating box; Alternatively, the transmission mechanism includes a meshing pulley set and a conveyor belt, the pulley set is rotatably connected to the second supporting structure, the conveyor belt is connected to the pulley set, and the conveyor belt is connected to the floating box.

6. The buoyancy power generation device according to claim 5, characterized in that: The sprocket set includes a first sprocket and a second sprocket, the first sprocket is rotatably connected to the top of the second supporting structure, the second sprocket is rotatably connected to the bottom of the second supporting structure, and the chain is wound around and connected to the first sprocket and the second sprocket; The first sprocket is connected to the power output shaft and is used for driving the power output shaft to rotate.

7. The buoyancy power generation device according to claim 5, characterized in that: The pulley group includes a first pulley and a second pulley, the first pulley is rotatably connected to the top of the second supporting structure, the second pulley is rotatably connected to the bottom of the second supporting structure, the conveyor belt is wound around the first pulley and the second pulley, and the first pulley is connected to the power output shaft for driving the power output shaft to rotate.

8. The buoyancy power generation device according to any one of claims 1 to 7, characterized in that: The floating box includes a sealed cavity, the top of which is provided with an air inlet, which is connected to a high-pressure air pump through a pipeline; The floating box is provided with a water inlet and an exhaust port connected with the sealed cavity, the water inlet is provided at the bottom of the floating box or near the bottom, the exhaust port is provided at the top of the floating box, the water inlet is provided with a first valve, and the exhaust port is provided with a second valve; The high-pressure air pump, the first valve and the second valve are communicatively connected to the controller.

9. The buoyancy power generation device according to any one of claims 1 to 7, characterized in that: The first supporting structure comprises a first supporting frame, on which a sliding rod vertically arranged on the water surface is arranged, and the floating box is slidably connected to the sliding rod via a first connecting plate.

10. The buoyancy power generation device according to claim 9, characterized in that: The first support frame is a support frame, and the slide bar is fixedly connected to the support frame; Two support frames are provided, and the two support frames are respectively arranged on both sides of the floating box body. Both sides of the floating box body are slidably connected to the sliding rod through one of the first connecting plates.

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