Floating type supporting structure for photovoltaic module

Abstract

The invention belongs to the technical field of photovoltaic panel supporting, and discloses a floating type supporting structure for a photovoltaic module, which comprises two groups of floating boxes, a frame, a photovoltaic panel and a plurality of groups of brackets, and further comprises a heat dissipation plate which is arranged on the frame and is positioned below the photovoltaic panel; and the pump body mechanisms are symmetrically mounted on the buoyancy tank. According to the scheme, the floating box is driven to shake through water surface fluctuation, so that the elastic floating plate rotates and drives the telescopic rod to rotate, the other end of the telescopic rod drives the first piston rod to vertically reciprocate, and when the first piston rod moves downwards, liquid in the first barrel enters the first pipeline through the second one-way valve and is conveyed into the cavity, so that the photovoltaic panel is cooled; and meanwhile, the liquid entering the cavity is discharged through the adjusting mechanism, so that the problem that the power generation efficiency of the photovoltaic module is reduced due to the temperature rise of the water body caused by the floating photovoltaic module arranged in a large area is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic panel support, and in particular relates to a floating support structure for a photovoltaic module. Background Art

[0002] Water surface photovoltaic power generation equipment is an important innovation in the field of clean energy in recent years. Water surface photovoltaic equipment does not need to occupy arable land, forest land or construction land, and is particularly suitable for areas with limited land resources but abundant water areas.

[0003] The support systems for water surface power generation equipment can be divided into two categories: floating and anchored. The floating structure uses a floating body as its core, which supports the photovoltaic panels floating on the water surface through buoyancy. At the same time, a flexible connection structure set on the floating body is used to connect multiple floating bodies, thus forming a photovoltaic power generation matrix. Although the water surface has a natural cooling effect and can cool down the photovoltaic panels above it, large-scale photovoltaic equipment covering the water surface may hinder the natural heat dissipation of the water body, causing the water temperature to rise abnormally in some areas, thereby affecting the survival of aquatic organisms and affecting the physical and chemical properties of the water body. At the same time, the water body loses its cooling effect on the photovoltaic panels, resulting in excessively high temperatures of the photovoltaic panels, which in turn causes an imbalance in the charge distribution inside the photovoltaic panel components, resulting in power attenuation and shortened life of the photovoltaic panels.

[0004] Therefore, in order to solve the above problems, a floating support structure for photovoltaic modules is proposed. Summary of the Invention

[0005] To solve the problems raised in the above background technology, the present invention provides a floating support structure for photovoltaic modules, which solves the problem that floating photovoltaic modules arranged over a large area will cause the water temperature to rise and reduce the power generation efficiency of the photovoltaic modules.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a floating support structure for a photovoltaic module, comprising two sets of pontoons, a frame, a photovoltaic panel, and several sets of brackets, wherein the frame is supported on the pontoons by the brackets, the photovoltaic panel is mounted on the frame, and the two sets of pontoons are connected by connecting rods therebetween, and further comprising: a heat sink mounted on the frame and located below the photovoltaic panel; and a pump mechanism symmetrically mounted on the pontoons; The bottom of the buoyancy box is hinged with an elastic floating plate, the edges of the elastic floating plate are symmetrically fixed with telescopic rods, and the heat dissipation plate is provided with a plurality of chambers; The pump body mechanism includes a cylinder body 1 fixedly mounted on the bottom of the buoyancy tank, a one-way valve 1 is provided at the bottom of the cylinder body 1, which is connected to the inside of the cylinder body 1, a piston rod 1 is movably sleeved in the one-way valve 1, the top end of the piston rod 1 extends into the interior of the buoyancy tank, a one-way valve 2 is provided at the bottom of the piston rod 1, and a pipe 1 is fixedly connected to the middle of the piston rod 1, and the top end of the pipe 1 is connected to the chamber; The other end of the telescopic rod is hinged to a middle portion of the piston rod; The bottom of the heat sink is fixedly connected to a regulating mechanism for discharging liquid from the heat sink.

[0007] Preferably, an aeration mechanism is also provided on the buoyancy box; the aeration mechanism includes a cylinder body 2 fixedly connected to the buoyancy box, a protective cover is provided on the top of the aeration mechanism, a one-way valve flap 1 is installed on the top of the cylinder body 2 for one-way communication with the cavity of the cylinder body 2, the cylinder body 2 is connected with a pipe 2 located below the one-way valve flap 1, the other end of the pipe 2 passes through the buoyancy box and extends to the bottom of the buoyancy box and is fixed with an air stone, and a one-way valve flap 2 is provided in the pipe 2 located below the buoyancy box for one-way communication with the air stone.

[0008] Preferably, the bracket comprises an outer tube fixedly connected to the buoyancy box and an inner rod movably connected to the inner part of the outer tube, and the top end of the inner rod extends to the outside of the outer tube; The bottom of the frame is provided with a straight slot, the top ends of the inner rods on one group of buoyancy boxes are hinged to the bottom of the frame, and the top ends of the inner rods on the other group of buoyancy boxes can slide in the straight slot.

[0009] Preferably, the regulating mechanism comprises a cylinder body 3 fixedly connected to the bottom of the outer cylinder, one end of the cylinder body 3 being fixedly connected to a pipe 3, the top of the pipe 3 being connected to the chamber, a piston rod 2 being elastically connected to the cylinder body 3 for initially blocking the cylinder body 3, one end of the piston rod 2 extending into the interior of the outer cylinder; the liquid in the chamber can enter the outer cylinder through the regulating mechanism and push the inner rod upward; The bottom of the outer cylinder is also fixedly connected to a liquid discharge component which is in a closed state when the regulating mechanism delivers liquid, and the regulating mechanism is in an open state when the regulating mechanism stops delivering liquid.

[0010] Preferably, the drainage assembly comprises a cylindrical member connected to the bottom of the outer cylinder by a bearing, a drainage pipe is provided in an array on the inner circumference of the cylindrical member, and a guide groove is provided in the middle of the cylindrical member; An annular frame is fixedly connected to the cylinder body 3, and one end of the piston rod 2 located in the cylinder body 3 is splined and movably connected to the annular frame; One end of the piston rod is fixedly connected to a convex shaft which can slide in the guide groove, and the annular array at the bottom of the inner rod is fixedly connected to a baffle which is misaligned with the discharge pipe in the initial state.

[0011] Preferably, the drain assembly can be replaced by a solenoid valve.

[0012] Preferably, a through hole is provided on the cylinder body three, and the pipeline three can be connected with the outside through the through hole.

[0013] Preferably, one end of the piston rod 2 located inside the cylinder 3 is fixedly connected to a blocking piece, and when the piston rod 2 moves to connect the cylinder 3 with the outer cylinder, the outer wall of the blocking piece can block the through hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The above solution uses water surface fluctuations to drive the buoyancy box to rock, causing the elastic float to rotate and drive the telescopic rod to rotate. The other end of the telescopic rod drives piston rod one to move vertically back and forth. When piston rod one moves upward, water enters cylinder one through one-way valve one for temporary storage. When the piston rod moves downward, the liquid in cylinder one passes through one-way valve two and enters pipe one and is transported to the chamber, thereby cooling the photovoltaic panel. At the same time, the liquid entering the chamber is discharged through the regulating mechanism, thus solving the problem that floating photovoltaic modules arranged over a large area may cause the water temperature to rise and reduce the power generation efficiency of the photovoltaic modules. In the above solution, when the piston rod 1 moves upward, its top end moves upward in the cylinder 2 and passes the gas inside into the air stone through the pipe 2 and the one-way valve disc 2 in a one-way direction. At this time, the air stone divides the gas into a large number of tiny bubbles, thereby improving the dissolution efficiency of oxygen and water, thereby ensuring the stability of the water body. At the same time, the bubbles can also carry heat in the water body when floating up, thereby preventing the water temperature below the float tank from being too high. The above scheme uses the buoyancy box to lower its height in its original state due to the fluctuation of the water surface. In contrast, the buoyancy box moves downward and drives the elastic float to impact the water surface downward and rotate, so that the piston rod moves downward through the rotation of the telescopic rod, causing the water to flow into the chamber, and the original water flow in the chamber will enter the cylinder three through the entry pipe, which will push the piston rod two to accumulate force and drive the cam to move in the guide groove, thereby rotating the columnar part. When the baffle coincides with one end of the discharge pipe and seals it, the cylinder three is connected to the outer cylinder, and the liquid will enter the outer cylinder and lift the inner rod, thereby increasing the height of the photovoltaic panels on the group of buoyancy boxes, thereby ensuring that the shaking angle of the photovoltaic panels is reduced when the water surface fluctuates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view planar structure schematic diagram of the present invention; Figure 3 It is a front perspective plan view of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the cylinder body 1 of the present invention; Figure 5 Schematic diagram of the top cross-sectional structure of the heat dissipation plate of the present invention; Figure 6 is a perspective plan view of the aeration mechanism of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 It is a front cross-sectional structural schematic diagram of the present invention; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 Schematic diagram of the baffle structure.

[0016] In the figure: 1. Float; 11. Elastic floating plate; 12. Telescopic rod; 2. Photovoltaic panel; 21. Frame; 22. Straight slot; 3. Pump body mechanism; 31. Cylinder body 1; 32. One-way valve 1; 33. Piston rod 1; 34. One-way valve 2; 35. Pipeline 1; 4. Aeration mechanism; 41. Cylinder body 2; 411. Protective cover; 42. One-way valve disc 1; 43. Pipeline 2; 44. Air stone; 45. One-way valve disc 2; 5. Heat sink; 51. Chamber; 6. Bracket; 61. Outer cylinder; 62. Inner rod; 621. Baffle; 7. Adjustment mechanism; 71. Cylinder body 3; 711. Ring frame; 712. Through hole; 72. Pipeline 3; 73. Piston rod 2; 731. Blocking piece; 732. Protruding shaft; 8. Drain assembly; 81. Columnar piece; 82. Drain pipe; 83. Guide groove. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0018] like Figures 1 to 10 As shown, the present invention provides a floating support structure for a photovoltaic module, comprising two groups of pontoons 1, a frame 21, a photovoltaic panel 2, and several groups of brackets 6. The frame 21 is supported on the pontoons 1 by the brackets 6, and the photovoltaic panel 2 is mounted on the frame 21. The two groups of pontoons 1 are connected by a connecting rod therebetween. The structure also includes: a heat sink 5 mounted on the frame 21 and located below the photovoltaic panel 2; a pump mechanism 3 symmetrically mounted on the pontoons 1; wherein an elastic floating plate 11 is hingedly connected to the bottom of the pontoon 1, and telescopic rods 12 are symmetrically fixed to the edges of the elastic floating plate 11; and a plurality of chambers 51 are formed on the heat sink 5; The pump mechanism 3 includes a cylinder 31 fixedly mounted on the bottom of the buoyancy tank 1. A one-way valve 32 is provided at the bottom of the cylinder 31 to communicate with the inside of the cylinder 31. A piston rod 33 is movably sleeved inside the one-way valve 32. The top end of the piston rod 33 extends into the interior of the buoyancy tank 1. A one-way valve 34 is provided at the bottom of the piston rod 33 to enable one-way flow into the piston rod 33. A pipe 35 is fixedly connected to the middle of the piston rod 33. The top end of the pipe 35 is communicated with the chamber 51. The other end of the telescopic rod 12 is hinged to the middle of the piston rod 33; the bottom of the heat sink 5 is fixedly connected to the regulating mechanism 7 for discharging the liquid in the heat sink 5.

[0019] By adopting the above scheme, the buoyancy box 1 is shaken by the fluctuation of the water surface, so that the elastic float 11 rotates and drives the telescopic rod 12 to rotate, and the other end of the telescopic rod 12 drives the piston rod 133 to move vertically back and forth. When the piston rod 133 moves upward, the water body will enter the cylinder body 131 in one direction through the one-way valve 132 for temporary storage. When the piston rod 133 moves downward, the liquid in the cylinder body 131 will enter the pipe 135 through the one-way valve 234 and be transported to the chamber 51, thereby cooling the photovoltaic panel 2. At the same time, the liquid entering the chamber 51 will be discharged through the regulating mechanism 7, thereby solving the problem that floating photovoltaic modules arranged over a large area will cause the water temperature to rise and reduce the power generation efficiency of the photovoltaic modules.

[0020] like Figure 1-Figure 4 、 Figure 6 and Figure 7 As shown, the buoyancy tank 1 is also provided with an aeration mechanism 4; the aeration mechanism 4 includes a second cylinder 41 fixedly connected to the buoyancy tank 1, a protective cover 411 is provided on the top of the aeration mechanism 4, a one-way valve flap 1 42 for one-way communication with the cavity of the second cylinder 41 is installed on the top of the second cylinder 41, and the second cylinder 41 is connected to a second pipe 43 located below the one-way valve flap 1 42. The other end of the second pipe 43 passes through the buoyancy tank 1 and extends to the bottom of the buoyancy tank 1 and is fixedly connected to an air stone 44. A one-way valve flap 2 45 for one-way communication with the air stone 44 is provided in the second pipe 43 located below the buoyancy tank 1; With the above solution, when the piston rod 1 33 moves upward, its top end will move upward in the cylinder 2 41 and pass the gas therein into the air stone 44 in one direction through the pipe 2 43 and the one-way valve flap 2 45. At this time, the air stone 44 divides the gas into a large number of tiny bubbles, thereby improving the dissolution efficiency of oxygen and water, thereby ensuring the stability of the water body. At the same time, the bubbles can also carry heat in the water body when floating up, thereby avoiding the situation where the water temperature below the float tank 1 is too high.

[0021] like Figure 1-Figure 3 and Figures 8-10 As shown, the bracket 6 includes an outer tube 61 fixed to the buoyancy tank 1 and an inner rod 62 movably connected to the inner part of the outer tube 61, and the top end of the inner rod 62 extends to the outside of the outer tube 61; A straight slot 22 is provided at the bottom of the frame 21. The top of the inner rod 62 on one group of pontoons 1 is hinged to the bottom of the frame 21, and the top of the inner rod 62 on the other group of pontoons 1 can slide in the straight slot 22. The adjustment mechanism 7 includes a third cylinder 71 fixedly connected to the bottom of the outer cylinder 61. One end of the third cylinder 71 is fixedly connected to a third pipe 72. The top of the third pipe 72 is connected to the chamber 51. A second piston rod 73 is elastically connected to the third cylinder 71 for initially sealing the third cylinder 71. One end of the second piston rod 73 extends into the interior of the outer cylinder 61. The liquid in the chamber 51 can enter the outer tube 61 through the regulating mechanism 7 and push the inner rod 62 upward. The bottom of the outer tube 61 is also fixedly connected to a liquid discharge assembly 8 for the regulating mechanism 7 to be in a closed state when the regulating mechanism 7 is delivering liquid. When the regulating mechanism 7 stops delivering liquid, the regulating mechanism 7 is in an open state. The drainage assembly 8 includes a cylindrical member 81 connected to the bottom of the outer cylinder 61 by a bearing. A drainage pipe 82 is provided in an array on the inner circumference of the cylindrical member 81, and a guide groove 83 is provided in the middle of the cylindrical member 81. An annular frame 711 is fixedly connected to the cylinder body 3 71 , and one end of the piston rod 2 73 located inside the cylinder body 3 71 is splined and movably connected to the annular frame 711 ; One end of the second piston rod 73 is fixedly connected to a convex shaft 732 that can slide in the guide groove 83. The bottom of the inner rod 62 is fixedly connected to a circular array of baffles 621 that are misaligned with the discharge pipe 82 in the initial state. The drain assembly 8 can be replaced by a solenoid valve; By adopting the above scheme, the buoyancy box 1 is lowered in its original state due to the fluctuation of the water surface. In contrast, the buoyancy box 1 moves downward and drives the elastic float 11 to impact the water surface downward and rotate. As a result, the rotation of the telescopic rod 12 causes the piston rod 1 33 to move downward, causing the water to flow into the chamber 51. The original water flow in the chamber 51 will enter the cylinder 3 71 through the pipe 3 72, which will push the piston rod 2 73 to store force and drive the cam 732 to move in the guide groove 83, thereby causing the columnar member 81 to rotate. When the baffle 621 coincides with one end of the discharge pipe 82 and blocks it, the cylinder 3 71 is now connected to the outer cylinder 61, and the liquid will enter the outer cylinder 61 and push up the inner rod 62, thereby increasing the height of the photovoltaic panel 2 on the buoyancy box 1, thereby ensuring that the shaking angle of the photovoltaic panel 2 is reduced when the water surface fluctuates. When the second piston rod 73 is pulled back to its original position by itself, the drain assembly 8 will open, so that the liquid in the inner rod 62 can be discharged through the drain assembly 8; It is worth noting that when the inner rod 62 on one group of floats 1 is raised, the inner rod 62 on the other group of floats 1 may also move up or down. When the inner rod 62 on the other group of floats 1 is raised, the liquid level under this group of floats 1 will also drop. At this time, the inner rods 62 on both groups of floats 1 are raised, thereby ensuring that the inclination angle of the photovoltaic panel 2 is stable.

[0022] like Figure 2 and Figures 8-10 As shown, a through hole 712 is opened on the cylinder body 3 71, and the pipe 3 72 can also communicate with the outside through the through hole 712; One end of the second piston rod 73 located inside the third cylinder 71 is fixedly connected to a blocking member 731. When the second piston rod 73 moves to connect the third cylinder 71 with the outer cylinder 61, the outer wall of the blocking member 731 can block the through hole 712. With the above solution, when the liquid level fluctuates slightly, the liquid pumped into the chamber 51 by the pump mechanism 3 is unable to push the piston rod 2 73 to move due to insufficient pressure. At this time, the excess liquid will be discharged to the outside through the through hole 712. When the pressure is sufficient, the liquid in the pipe three 72 will push the piston rod two 73 to move through the cylinder three 71, thereby driving the blocking member 731 to block the through hole 712, thereby ensuring that there is sufficient pressure in the outer cylinder 61 to lift the inner rod 62.

[0023] The working principle and use process of the present invention: Typically, the water surface where the photovoltaic panel 2 is installed will experience a certain degree of fluctuation. In this case, the fluctuation of the water surface will cause the buoyancy box 1 to shake, thereby causing the elastic float 11 to rotate and drive the telescopic rod 12 to rotate, while the other end of the telescopic rod 12 drives the piston rod 133 to move vertically back and forth. When the piston rod 133 moves upward, the water will enter the cylinder 131 in one direction through the one-way valve 132 for temporary storage. When the piston rod 133 moves downward, the liquid in the cylinder 131 will enter the pipe 135 through the one-way valve 234 and be transported to the chamber 51, thereby cooling the photovoltaic panel 2. At the same time, the liquid entering the chamber 51 will be discharged through the regulating mechanism 7. When the piston rod 1 33 moves upward, its top end moves upward in the cylinder 2 41 and passes the gas in the cylinder 2 41 into the air stone 44 in one direction through the pipe 2 43 and the one-way valve 2 45. At this time, the air stone 44 divides the gas into a large number of tiny bubbles, thereby improving the dissolution efficiency of oxygen and water, thereby ensuring the stability of the water. At the same time, the bubbles can also carry heat in the water when floating up, thereby preventing the water temperature below the float tank 1 from being too high. When the buoyancy chamber 1 is lowered due to fluctuations in the water surface, it moves downward, driving the elastic float 11 downward to impact the water surface and rotate. The rotation of the telescopic rod 12 causes the piston rod 1 33 to move downward, causing water to flow into the chamber 51. The existing water flow in the chamber 51 enters the cylinder body 3 71 through the inlet pipe 3 72, pushing the piston rod 2 73 to accumulate force and driving the cam 732 to move within the guide groove 83, thereby rotating the columnar member 81. When the baffle 621 overlaps with one end of the discharge pipe 82 and blocks it, the cylinder body 3 71 is now connected to the outer cylinder 61, and liquid enters the outer cylinder 61 and lifts the inner rod 62, thereby raising the height of the photovoltaic panels 2 on the buoyancy chamber 1. This ensures that the angle of the photovoltaic panels 2's shaking is reduced when the water surface fluctuates.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A floating support structure for a photovoltaic module, comprising two groups of pontoons (1), a frame (21), a photovoltaic panel (2) and a plurality of groups of brackets (6), wherein the frame (21) is supported on the pontoons (1) by the brackets (6), the photovoltaic panel (2) is mounted on the frame (21), and the two groups of pontoons (1) are connected by a connecting rod therebetween, characterized in that: Also includes: A heat dissipation plate (5) mounted on the frame (21) and located below the photovoltaic panel (2); A pump body mechanism (3) is symmetrically mounted on the buoyancy tank (1); The bottom of the buoyancy box (1) is hinged with an elastic floating plate (11), the edge of the elastic floating plate (11) is symmetrically fixed with telescopic rods (12), and the heat dissipation plate (5) is provided with a plurality of chambers (51); The pump body mechanism (3) includes a cylinder body (31) fixedly mounted on the bottom of the buoyancy tank (1), a one-way valve (32) is provided at the bottom of the cylinder body (31) and is connected to the inside of the cylinder body (31), a piston rod (33) is movably sleeved in the one-way valve (32), the top end of the piston rod (33) extends into the inside of the buoyancy tank (1), a one-way valve (34) capable of one-way flow into the piston rod (33) is provided at the bottom of the piston rod (33), a pipe (35) is fixedly connected to the middle of the piston rod (33), and the top end of the pipe (35) is connected to the chamber (51); The other end of the telescopic rod (12) is hinged to the middle of the piston rod (33); The bottom of the heat dissipation plate (5) is fixedly connected to a regulating mechanism (7) for discharging liquid from the heat dissipation plate (5).

2. The floating support structure for photovoltaic modules according to claim 1, characterized in that: The buoyancy tank (1) is further provided with an aeration mechanism (4); The aeration mechanism (4) comprises a second cylinder (41) fixedly connected to the buoyancy box (1), a protective cover (411) is provided at the top of the aeration mechanism (4), a one-way valve flap (42) for one-way communication with the cavity of the second cylinder (41) is installed on the top of the second cylinder (41), a second pipe (43) located below the one-way valve flap (42) is connected to the second cylinder (41), the other end of the second pipe (43) passes through the buoyancy box (1) and extends to the bottom of the buoyancy box (1) and is fixedly connected to an air stone (44), and a one-way valve flap (45) for one-way communication with the air stone (44) is provided in the second pipe (43) located below the buoyancy box (1).

3. The floating support structure for photovoltaic modules according to claim 1, characterized in that: The bracket (6) comprises an outer cylinder (61) fixedly connected to the buoyancy box (1) and an inner rod (62) movably connected to the inside of the outer cylinder (61), and the top end of the inner rod (62) extends to the outside of the outer cylinder (61); A straight slot (22) is provided at the bottom of the frame (21), wherein the top ends of the inner rods (62) on one group of buoyancy boxes (1) are hinged to the bottom of the frame (21), and the top ends of the inner rods (62) on the other group of buoyancy boxes (1) can slide in the straight slot (22).

4. The floating support structure for photovoltaic modules according to claim 3, characterized in that: The regulating mechanism (7) includes a cylinder body (71) fixedly connected to the bottom of the outer cylinder (61), one end of the cylinder body (71) is fixedly connected to a pipe (72), the top of the pipe (72) is connected to the chamber (51), and a piston rod (73) is elastically connected inside the cylinder body (71) for initially blocking the cylinder body (71), and one end of the piston rod (73) extends into the interior of the outer cylinder (61); The liquid in the chamber (51) can enter the outer cylinder (61) through the regulating mechanism (7) and push the inner rod (62) upward; The bottom of the outer cylinder (61) is also fixedly connected to a liquid discharge assembly (8) that is in a closed state when the regulating mechanism (7) is delivering liquid, and when the regulating mechanism (7) stops delivering liquid, the regulating mechanism (7) is in an open state.

5. The floating support structure for photovoltaic modules according to claim 4, characterized in that: The drainage assembly (8) includes a cylindrical member (81) connected to the bottom of the outer cylinder (61) by a bearing, a drainage pipe (82) is provided in an array on the inner circumference of the cylindrical member (81), and a guide groove (83) is provided in the middle of the cylindrical member (81); An annular frame (711) is fixedly connected to the cylinder body (71), and one end of the piston rod (73) located in the cylinder body (71) is splined and movably connected to the annular frame (711); One end of the second piston rod (73) is fixedly connected to a convex shaft (732) that can slide in the guide groove (83), and the bottom annular array of the inner rod (62) is fixedly connected to a baffle (621) that is misaligned with the discharge pipe (82) in the initial state.

6. The floating support structure for photovoltaic modules according to claim 4, characterized in that: The liquid discharge assembly (8) can be replaced by a solenoid valve.

7. The floating support structure for photovoltaic modules according to claim 5, characterized in that: The cylinder body (71) is provided with a through hole (712), and the pipe (72) can also communicate with the outside world through the through hole (712).

8. The floating support structure for photovoltaic modules according to claim 7, characterized in that: One end of the second piston rod (73) located inside the third cylinder (71) is fixedly connected to a blocking member (731). When the second piston rod (73) moves to connect the third cylinder (71) with the outer cylinder (61), the outer wall of the blocking member (731) can block the through hole (712).

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