Offshore photovoltaic support frame

Abstract

The invention relates to an offshore photovoltaic support frame, which belongs to the technical field of photovoltaic panel supports and comprises a buoyancy tank, and a support structure is arranged on the buoyancy tank. The supporting structure comprises a rotating disc and a mounting frame, the axis of the rotating disc is vertically arranged, a mounting hole is formed in the top of the floating box, the rotating disc is located in the mounting hole, the floating box is rotationally connected with the inner circumferential wall of the mounting hole in a sealed mode, and a driving system is arranged in the floating box. According to the invention, the adjustment of the angles of the photovoltaic panel in two directions is realized, the illumination surface of the photovoltaic panel always faces the sun, the power generation efficiency of the photovoltaic panel is improved, when impurities exist on the surface of the photovoltaic panel, air discharged through the air holes acts on the photovoltaic panel, the impurities on the surface of the photovoltaic panel are blown away, the cleaning of the impurities on the photovoltaic panel is realized, and the power generation efficiency of the photovoltaic panel is improved. Impurities are prevented from affecting the power generation efficiency of the photovoltaic panel, and the air holes are driven to exhaust air in two modes of up-down floating of the floating box on the sea surface and pressing of the air bag.

Description

Technical Field

[0001] The invention relates to an offshore photovoltaic support frame, belonging to the technical field of photovoltaic panel supports. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. The key component of this technology is the solar cell. After being connected in series and packaged for protection, the solar cells can form a large-area solar cell module, which is then combined with components such as a power controller to form a photovoltaic power generation device. Currently, there are large areas at sea where photovoltaic panels can be installed.

[0003] The utility model patent with the announcement number CN220629233U discloses an offshore photovoltaic panel support, including a floating body, a fixing plate fixed on the upper surface of the floating body, a fixing groove opened on the upper surface of the fixing plate, an adjusting mechanism for adjusting the angle of the photovoltaic panel support, an anti-collision mechanism for increasing the anti-collision performance of the photovoltaic panel support is arranged around the fixing plate, and the adjusting mechanism includes an electric push rod fixed to the bottom wall of the inner cavity of the fixing groove, a first connecting rod is fixed on the outer side of the output shaft of the electric push rod, and a fixing ring is fixed on the lower surface of the connecting plate. The offshore photovoltaic panel support, the adjusting mechanism can adjust the illumination angle of the light panel, the first connecting rod is moved up and down through the output shaft of the electric push rod, and then the mounting plate is driven to rotate up and down, and then the mounting plate drives the photovoltaic panel to adjust the illumination angle, and at the same time has a night warning performance to prevent passing ships from hitting the photovoltaic panel support. However, in the prior art, when there are impurities on the surface of the photovoltaic panel, the photovoltaic panel cannot be cleaned, thereby affecting the power generation efficiency of the photovoltaic panel.

[0004] Therefore, there is a need for an offshore photovoltaic support frame to clean the photovoltaic panels and prevent impurities from affecting the power generation efficiency of the photovoltaic panels. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, an offshore photovoltaic support frame is provided to achieve cleaning of photovoltaic panels and prevent impurities from affecting the power generation efficiency of photovoltaic panels.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: an offshore photovoltaic support frame, comprising a buoyancy box, on which a support structure is arranged; The support structure comprises a rotating disk and a mounting frame, the axis of the rotating disk is arranged vertically, a mounting hole is arranged on the top of the buoyancy box, the rotating disk is located in the mounting hole, the buoyancy box is rotatable and sealedly connected to the inner peripheral wall of the mounting hole, a driving system is arranged in the buoyancy box, the driving system is used to drive the rotating disk to rotate, the mounting frame is tilted above the rotating disk, an adjustment component is arranged between the rotating disk and the mounting frame, the mounting frame is connected to the rotating disk through the adjustment component, and the adjustment component is used to adjust the inclination angle of the mounting frame; The mounting frame is provided with a mounting cavity and two blind holes, the mounting cavity is used to place a photovoltaic panel, the two blind holes are respectively located on both sides of the mounting cavity, the outer ends of the blind holes are sealed by sealing plugs, both sides of the mounting frame are provided with a first connecting port, the first connecting port is communicated with the blind hole, the inner walls on both sides of the mounting cavity are provided with a group of air holes, the two groups of air holes correspond one-to-one to the two blind holes, the air holes are communicated with the blind holes, the rotating disk is provided with two second connecting ports, the two second connecting ports correspond one-to-one to the two first connecting ports, the second connecting port is communicated with the interior of the buoyancy tank, and the second connecting port is connected to the first connecting port through a connecting pipe; The buoyancy box is connected with a fixed tube, which is arranged vertically, and the top end of the fixed tube is communicated with the interior of the buoyancy box, and the bottom end of the fixed tube is located below the buoyancy box, and a lifting plate is arranged in the fixed tube, and the lifting plate is slidably and sealedly connected to the fixed tube, and a lifting rod is vertically fixedly arranged at the bottom of the lifting plate, and a supporting ring is sleeved on the lifting rod, and the supporting ring is fixedly connected to the fixed tube, and a first spring is arranged between the supporting ring and the lifting plate, and the two ends of the first spring are respectively connected to the supporting ring and the lifting plate, and the bottom end of the lifting rod is connected to a pull rope.

[0007] Preferably, the adjustment assembly includes a support shaft and two cylinders, the support shaft is horizontally arranged below the mounting frame, both ends of the support shaft are fixedly connected to the mounting frame, two rotating seats are rotatably connected to the support shaft, the two rotating seats are distributed along the length direction of the support shaft, the rotating seat is slidably connected to the rotating disk, the two cylinders correspond one-to-one to the two rotating seats, the cylinder is located on one side of the support shaft, the cylinder body of the cylinder is fixedly arranged on the rotating disk, and the piston end of the cylinder is ball-hinged with the mounting frame.

[0008] Preferably, two slide grooves are provided on the top of the rotating disk, and the two slide grooves correspond one-to-one to the two rotating seats. The slide grooves extend to the outer peripheral wall of the rotating disk, and the rotating seat is arranged in the slide grooves. The rotating seat is slidably connected to the slide grooves, and guide grooves are provided on both sides of the slide grooves. Two guide strips are provided on the rotating seat, and the two guide strips correspond one-to-one and match the two guide grooves, and the guide strips are arranged in the guide grooves.

[0009] Preferably, a plurality of the fixed tubes are provided, the specific number of the fixed tubes is four, and the four fixed tubes are distributed in a matrix.

[0010] Preferably, a plurality of float bags are arranged on the outer wall of the pontoon, and the plurality of float bags correspond one-to-one to a plurality of fixed tubes. The float bags are fixedly arranged on the pontoon, and the float bags are connected with the pontoon through air pipes. An extrusion plate is arranged on the side of the float bags away from the pontoon, and a driving unit is arranged on the extrusion plate, and the driving unit is used to drive the extrusion plate to move toward or away from the pontoon.

[0011] Preferably, the driving unit includes a guide rod and an electromagnet, two guide rods are provided, and the two guide rods are respectively located on both sides of the float bag, the guide rod horizontally passes through the extrusion plate, one end of the guide rod is fixedly set on the float box, and the other end of the guide rod is fixedly set on the limit block, the limit block abuts against the extrusion plate, a second spring is sleeved on the guide rod, the second spring is located between the extrusion plate and the float box, the two ends of the second spring are respectively connected to the float box and the extrusion plate, the electromagnet is located between the extrusion plate and the float box, the electromagnet is fixedly set on the float box, and a gap is set between the electromagnet and the extrusion plate.

[0012] Preferably, the top end of the fixed tube is arranged at the bottom of the floating bladder, and the fixed tube is communicated with the floating bladder.

[0013] Preferably, a flange is provided on the inner peripheral wall of the mounting hole, the bottom of the rotating disk is in contact with the top of the flange, and the top of the rotating disk is in the same plane as the top of the buoyancy tank.

[0014] Preferably, both sides of the installation cavity are provided with card slots, pins are passed through the card slots, and tightening screws are threadedly connected to the pins. A plurality of through holes and a plurality of protrusions are provided on the inner wall of the installation cavity, and the plurality of through holes and the plurality of protrusions are cross-arranged, and the through holes and the protrusions are both located between the two card slots.

[0015] Preferably, there are multiple air holes in each group, and the multiple air holes in the same group are distributed along the inclination direction of the mounting frame.

[0016] Compared with the prior art, the advantages of the present invention are: The present invention provides an offshore photovoltaic support frame, which realizes the adjustment of the angles of the photovoltaic panel in two directions, so that the illuminated surface of the photovoltaic panel is always facing the sun, which is convenient for improving the power generation efficiency of the photovoltaic panel. Secondly, when there are impurities on the surface of the photovoltaic panel, the air discharged through the pores acts on the photovoltaic panel to blow away the impurities on the surface of the photovoltaic panel, thereby cleaning the impurities on the photovoltaic panel and preventing the impurities from affecting the power generation efficiency of the photovoltaic panel. Moreover, the air pores can be driven to exhaust air in two ways: the floating box floats up and down on the sea surface and the airbag is pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of an offshore photovoltaic support frame of the present invention; Figure 2 This is a front view of an offshore photovoltaic support frame of the present invention; Figure 3 This is a right side view of an offshore photovoltaic support frame of the present invention; Figure 4 A top view of an offshore photovoltaic support frame of the present invention; Figure 5 for Figure 3 A magnified view of part A; Figure 6 It is a structural schematic diagram of the pontoon; Figure 7 is a schematic diagram of the structure of the rotating disk; Figure 8 for Figure 7 A magnified view of part B; Fig. 9 is a schematic diagram of a first connection structure between the mounting frame and the adjustment assembly; Fig.10 is a schematic diagram of a second connection structure between the mounting frame and the adjustment assembly; Fig.11 for Fig. 9 Enlarged view of part C; Fig.12 for Fig. 9 A magnified view of the D portion; Fig.13 for Fig.10 A magnified view of part E; Fig.14 is a cross-sectional view of the mounting frame; Fig.15 for Fig.14 Magnified view of part F; Fig.16 It is a schematic diagram of the connection structure between the fixed tube and the floating bag.

[0018] Wherein: float box 1, rotating disk 2, mounting frame 3, mounting hole 4, mounting cavity 5, blind hole 6, photovoltaic panel 7, sealing plug 8, first connecting port 9, air hole 10, second connecting port 11, connecting pipe 12, fixing pipe 13, lifting disk 14, lifting rod 15, supporting ring 16, first spring 17, pull rope 18, supporting shaft 19, cylinder 20, rotating seat 21, slide groove 22, guide groove 23, guide strip 24, flange 25, card slot 26, pin 27, tightening screw 28, through hole 29, protrusion 30, float bag 31, extrusion plate 32, guide rod 33, electromagnet 34, limit block 35, second spring 36, air pipe 37. DETAILED DESCRIPTION

[0019] like Figure 1-16As shown, an offshore photovoltaic support frame in this embodiment includes a pontoon 1, and a support structure is provided on the pontoon 1; The supporting structure includes a rotating disk 2 and a mounting frame 3, the axis of the rotating disk 2 is arranged vertically, a mounting hole 4 is provided on the top of the pontoon 1, the rotating disk 2 is located in the mounting hole 4, the pontoon 1 is rotated and sealed with the inner circumferential wall of the mounting hole 4, a driving system is provided in the pontoon 1, the driving system is used to drive the rotating disk 2 to rotate, here, the driving system can be a motor, the mounting frame 3 is tilted above the rotating disk 2, an adjustment component is provided between the rotating disk 2 and the mounting frame 3, the mounting frame 3 is connected to the rotating disk 2 through the adjustment component, and the adjustment component is used to adjust the inclination angle of the mounting frame 3; The mounting frame 3 is provided with a mounting cavity 5 and two blind holes 6, the mounting cavity 5 is used to place a photovoltaic panel 7, the two blind holes 6 are respectively located on both sides of the mounting cavity 5, and the outer ends of the blind holes 6 are sealed by sealing plugs 8, and first connecting ports 9 are provided on both sides of the mounting frame 3, and the first connecting ports 9 are communicated with the blind holes 6, and a group of air holes 10 are provided on the inner walls on both sides of the mounting cavity 5, and the two groups of air holes 10 correspond to the two blind holes 6 one by one, and the number of air holes 10 in each group is set in multiples, and the multiple air holes 10 in the same group are distributed along the inclination direction of the mounting frame 3, and the air holes 10 are communicated with the blind holes 6, and two second connecting ports 11 are provided on the rotating disk 2, and the two second connecting ports 11 correspond to the two first connecting ports 9 one by one, and the second connecting port 11 is communicated with the interior of the buoyancy tank 1, and the second connecting port 11 is connected to the first connecting port 9 through a connecting pipe 12, and the connecting pipe 12 is a hose; A plurality of fixed tubes 13 are connected to the buoyancy box 1, wherein the specific number of the fixed tubes 13 is four, and the four fixed tubes 13 are distributed in a matrix. The fixed tubes 13 are arranged vertically, and the top ends of the fixed tubes 13 are communicated with the interior of the buoyancy box 1, and the bottom ends of the fixed tubes 13 are located below the buoyancy box 1. A lifting disk 14 is arranged in the fixed tube 13, and the lifting disk 14 is slidably and sealedly connected to the fixed tube 13, and a lifting rod 15 is vertically fixedly arranged at the bottom of the lifting disk 14, and a support ring 16 is sleeved on the lifting rod 15, and the support ring 16 is fixedly connected to the fixed tube 13, and a first spring 17 is arranged between the support ring 16 and the lifting disk 14, and the two ends of the first spring 17 are respectively connected to the support ring 16 and the lifting disk 14, and a pull rope 18 is connected to the bottom end of the lifting rod 15; During operation, the buoyancy box 1 floats on the sea surface, and the pull rope 18 is fixed to the seabed or the shore. When waves are generated on the sea surface, the buoyancy box 1 is reciprocated and raised and lowered on the sea surface, and the fixed pipe 13 is driven to rise and fall synchronously; During the rising of the fixed tube 13, the distance between the support ring 16 and the lifting plate 14 is reduced, the first spring 17 is deformed, and the air in the buoyancy box 1 is sucked into the fixed tube 13; During the descent of the fixed tube 13, the distance between the support ring 16 and the lifting plate 14 is increased by the elastic action of the first spring 17, and the air in the fixed tube 13 is squeezed into the fixed tube 13; In this way, air is intermittently input and output in the buoyancy box 1, and because the buoyancy box 1 is connected with the blind hole 6 through the second connecting port 11, the connecting pipe 12 and the first connecting port 9 in sequence, and the blind hole 6 is connected with the air hole 10, the air hole 10 intermittently inhales and discharges air. Here, after the photovoltaic panel 7 is installed in the installation cavity 5, the photovoltaic panel 7 is in an inclined state, and the inclination angle of the photovoltaic panel 7 is consistent with the inclination angle of the mounting frame 3. The air hole 10 is located above the photovoltaic panel 7. When the air hole 10 discharges air, the air acts on the upper surface of the photovoltaic panel 7. Under the action of the airflow, impurities on the surface of the photovoltaic panel 7 are blown away, so that the impurities on the photovoltaic panel 7 are cleaned and the impurities are prevented from affecting the power generation efficiency of the photovoltaic panel 7. The adjustment assembly includes a support shaft 19 and two cylinders 20. The support shaft 19 is horizontally arranged below the mounting frame 3. Both ends of the support shaft 19 are fixedly connected to the mounting frame 3. Two rotating seats 21 are rotatably connected to the support shaft 19. The two rotating seats 21 are distributed along the length direction of the support shaft 19. The rotating seats 21 are slidably connected to the rotating disk 2. The two cylinders 20 correspond to the two rotating seats 21 one by one. The cylinder 20 is located on one side of the support shaft 19. The cylinder body of the cylinder 20 is fixedly arranged on the rotating disk 2. The piston end of the cylinder 20 is ball-hinged with the mounting frame 3. Two slide grooves 22 are arranged on the top of the rotating disk 2, and the two slide grooves 22 correspond to the two rotating seats 21 one by one. The slide grooves 22 extend to the outer peripheral wall of the rotating disk 2, and the rotating seat 21 is arranged in the slide grooves 22. The rotating seat 21 is slidably connected with the slide grooves 22. Guide grooves 23 are arranged on both sides of the slide grooves 22. Two guide bars 24 are arranged on the rotating seat 21, and the two guide bars 24 correspond to and match the two guide grooves 23 one by one, and the guide bars 24 are arranged in the guide grooves 23; When the photovoltaic panel 7 needs to adjust the tilt angle, the cylinder 20 is driven to push one side of the mounting frame 3 up or down, and the other side of the mounting frame 3 is rotated around the axis of the support shaft 19, so as to adjust the tilt angle of the mounting frame 3, that is, to adjust the tilt angle of the photovoltaic panel 7. Here, during the adjustment of the tilt angle of the mounting frame 3, the rotating seat 21 is driven to move horizontally in the slide groove 22, and the guidance of the rotating seat 21 during movement is achieved through the cooperation between the guide bar 24 and the guide groove 23; Of course, when the photovoltaic panel 7 needs to adjust the angle according to the direction of the light source, the driving system is started to make the rotating disk 2 rotate to the set angle, and the rotation of the rotating disk 2 drives the mounting frame 3 to rotate synchronously, that is, drives the photovoltaic panel 7 to rotate synchronously; Specifically, the rotating disk 2 rotates with the position of the sun, so that the illuminated surface of the photovoltaic panel 7 always faces the sun. At the same time, the inclination angle of the photovoltaic panel 7 also changes with the sun, that is, the illuminated surface of the photovoltaic panel 7 always faces the sun, which is conducive to improving the power generation efficiency of the photovoltaic panel 7; A flange 25 is provided on the inner peripheral wall of the mounting hole 4, the bottom of the rotating disk 2 is in contact with the top of the flange 25, and the top of the rotating disk 2 is in the same plane as the top of the buoyancy chamber 1. Here, the flange 25 plays a role in supporting the rotating disk 2. Both sides of the installation cavity 5 are provided with card slots 26, and pins 27 are inserted into the card slots 26. The pins 27 are threadedly connected with tightening screws 28. The inner side wall of the installation cavity 5 is provided with multiple through holes 29 and multiple protrusions 30, and the multiple through holes 29 and the multiple protrusions 30 are arranged crosswise, and the through holes 29 and the protrusions 30 are both located between the two card slots 26. When the photovoltaic panel 7 is installed, the two sides of the photovoltaic panel 7 are inserted into the card slots 26. At the same time, one side of the photovoltaic panel 7 abuts against the protrusion 30, and then the tightening screws 28 are tightened and abut against the other side of the photovoltaic panel 7 to fix the photovoltaic panel 7. When air acts on the surface of the photovoltaic panel 7, impurities move downward along the inclined direction of the photovoltaic panel 7 under the action of the airflow, and are finally discharged from the through holes 29, wherein the protrusions 30 can make a gap between the photovoltaic panel 7 and the inner wall of the side of the installation cavity 5 provided with the through holes 29, so as to prevent the photovoltaic panel 7 from blocking the through holes 29; A plurality of float bags 31 are arranged on the outer wall of the pontoon 1, and the plurality of float bags 31 correspond to the plurality of fixed tubes 13 one by one. The float bags 31 are fixedly arranged on the pontoon 1, and the float bags 31 are connected with the pontoon 1 through the air pipe 37. A squeezing plate 32 is arranged on the side of the float bag 31 away from the pontoon 1, and a driving unit is arranged on the squeezing plate 32, and the driving unit is used to drive the squeezing plate 32 to move toward or away from the pontoon 1. The driving unit includes a guide rod 33 and an electromagnet 34, wherein two guide rods 33 are provided, and the two guide rods 33 are respectively located on both sides of the float 31, and the guide rod 33 horizontally passes through the extrusion plate 32, one end of the guide rod 33 is fixedly set on the float 1, and the other end of the guide rod 33 is fixedly set on the limit block 35, and the limit block 35 abuts against the extrusion plate 32, and a second spring 36 is sleeved on the guide rod 33, and the second spring 36 is located between the extrusion plate 32 and the float 1, and the two ends of the second spring 36 are respectively connected to the float 1 and the extrusion plate 32, and the electromagnet 34 is located between the extrusion plate 32 and the float 1, and the electromagnet 34 is fixedly set on the float 1, and a gap is set between the electromagnet 34 and the extrusion plate 32; When there are no waves on the sea and the impurities on the photovoltaic panel 7 need to be cleaned, the electromagnet 34 is intermittently energized. When the electromagnet 34 is powered off, the electromagnet 34 generates an attraction force on the extrusion plate 32, that is, the extrusion plate 32 moves on the guide rod 33 toward the direction close to the buoyancy box 1, so that the second spring 36 is deformed, and at the same time, the air in the float 31 is transported from the air pipe 37 to the buoyancy box 1. When the electromagnet 34 is powered off, the extrusion plate 32 moves in the opposite direction to achieve reset through the elastic action of the second spring 36, that is, the air in the buoyancy box 1 is transported from the air pipe 37 to the buoyancy box 31. In this cycle, the buoyancy box 1 intermittently inputs and outputs air, that is, the air hole 10 intermittently inhales and discharges air, so that the air acts on the photovoltaic panel 7 to achieve the removal of impurities on the photovoltaic panel 7; The top end of the fixed pipe 13 is arranged at the bottom of the float bladder 31, and the fixed pipe 13 is connected with the float bladder 31. When the lifting plate 14 and the fixed pipe 13 move relative to each other, the air in the fixed pipe 13 flows through the float bladder 31 and the air pipe 37 in turn and circulates with the float box 1. Here, it should be noted that when there are water droplets on the surface of the photovoltaic panel 7, the airflow can not only blow away the water droplets, but also the water remaining after some of the water droplets are blown away can increase the evaporation rate of the water under the action of the airflow, so that the illuminated surface of the photovoltaic panel 7 remains dry, which is convenient for the photovoltaic panel 7 to generate electricity; In summary, the offshore photovoltaic support frame realizes the adjustment of the angles of the photovoltaic panel 7 in two directions, so that the illuminated surface of the photovoltaic panel 7 is always facing the sun, which is convenient for improving the power generation efficiency of the photovoltaic panel 7. Secondly, when there are impurities on the surface of the photovoltaic panel 7, the air discharged through the air hole 10 acts on the photovoltaic panel 7 to blow away the impurities on the surface of the photovoltaic panel 7, thereby cleaning the impurities on the photovoltaic panel 7 and preventing the impurities from affecting the power generation efficiency of the photovoltaic panel 7. Moreover, the exhaust of the air hole 10 can be driven by the floating box 1 floating up and down on the sea surface and the pressing of the air bag in two ways; In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. An offshore photovoltaic support frame, comprising a buoyancy box (1), characterized in that: A supporting structure is provided on the buoyancy box (1); The support structure comprises a rotating disk (2) and a mounting frame (3), the axis of the rotating disk (2) being arranged vertically, a mounting hole (4) being arranged on the top of the buoyancy box (1), the rotating disk (2) being located in the mounting hole (4), the buoyancy box (1) being rotatable and sealedly connected to the inner peripheral wall of the mounting hole (4), a driving system being arranged in the buoyancy box (1), the driving system being used to drive the rotating disk (2) to rotate, the mounting frame (3) being arranged obliquely above the rotating disk (2), an adjusting component being arranged between the rotating disk (2) and the mounting frame (3), the mounting frame (3) being connected to the rotating disk (2) via the adjusting component, the adjusting component being used to adjust the inclination angle of the mounting frame (3); The mounting frame (3) is provided with a mounting cavity (5) and two blind holes (6), the mounting cavity (5) being used for placing a photovoltaic panel (7), the two blind holes (6) being respectively located on both sides of the mounting cavity (5), the outer ends of the blind holes (6) being sealed by sealing plugs (8), both sides of the mounting frame (3) being provided with first connecting ports (9), the first connecting ports (9) being communicated with the blind holes (6), the inner walls of both sides of the mounting cavity (5) being provided with a group of air holes (10), the two groups of air holes (10) being in one-to-one correspondence with the two blind holes (6), the air holes (10) being in one-to-one correspondence with the blind holes (6), the rotating disk (2) being provided with two second connecting ports (11), the two second connecting ports (11) being in one-to-one correspondence with the two first connecting ports (9), the second connecting ports (11) being communicated with the interior of the buoyancy tank (1), the second connecting ports (11) being connected to the first connecting ports (9) via a connecting pipe (12); The buoyancy box (1) is connected to a fixed tube (13), the fixed tube (13) is arranged vertically, the top end of the fixed tube (13) is communicated with the interior of the buoyancy box (1), the bottom end of the fixed tube (13) is located below the buoyancy box (1), a lifting plate (14) is arranged inside the fixed tube (13), the lifting plate (14) is slidably and sealingly connected to the fixed tube (13), a lifting rod (15) is vertically fixedly arranged at the bottom of the lifting plate (14), a support ring (16) is sleeved on the lifting rod (15), the support ring (16) is fixedly connected to the fixed tube (13), a first spring (17) is arranged between the support ring (16) and the lifting plate (14), the two ends of the first spring (17) are respectively connected to the support ring (16) and the lifting plate (14), and a pull rope (18) is connected to the bottom end of the lifting rod (15).

2. An offshore photovoltaic support frame according to claim 1, characterized in that: The adjustment assembly comprises a support shaft (19) and two cylinders (20); the support shaft (19) is horizontally arranged below the mounting frame (3); both ends of the support shaft (19) are fixedly connected to the mounting frame (3); two rotating seats (21) are rotatably connected to the support shaft (19); the two rotating seats (21) are distributed along the length direction of the support shaft (19); the rotating seats (21) are slidably connected to the rotating disk (2); the two cylinders (20) correspond to the two rotating seats (21) one by one; the cylinder (20) is located on one side of the support shaft (19); the cylinder body of the cylinder (20) is fixedly arranged on the rotating disk (2); and the piston end of the cylinder (20) is ball-jointed to the mounting frame (3).

3. An offshore photovoltaic support frame according to claim 2, characterized in that: Two slide grooves (22) are arranged on the top of the rotating disk (2), and the two slide grooves (22) correspond to the two rotating seats (21) one by one. The slide grooves (22) extend to the outer peripheral wall of the rotating disk (2), and the rotating seat (21) is arranged in the slide grooves (22). The rotating seat (21) is slidably connected to the slide grooves (22), and guide grooves (23) are arranged on both sides of the slide grooves (22). Two guide bars (24) are arranged on the rotating seat (21), and the two guide bars (24) correspond to and match the two guide grooves (23) one by one, and the guide bars (24) are arranged in the guide grooves (23).

4. The offshore photovoltaic support frame according to claim 1, characterized in that: A plurality of the fixed tubes (13) are provided, the specific number of the fixed tubes (13) being four, and the four fixed tubes (13) are distributed in a matrix.

5. An offshore photovoltaic support frame according to claim 4, characterized in that: A plurality of float bags (31) are arranged on the outer wall of the buoyancy box (1), and the plurality of float bags (31) correspond to the plurality of fixed tubes (13) one by one. The float bags (31) are fixedly arranged on the buoyancy box (1), and the float bags (31) are connected to the buoyancy box (1) through an air pipe (37). A squeezing plate (32) is arranged on a side of the float bag (31) away from the buoyancy box (1), and a driving unit is arranged on the squeezing plate (32), and the driving unit is used to drive the squeezing plate (32) to move in a direction close to or away from the buoyancy box (1).

6. An offshore photovoltaic support frame according to claim 5, characterized in that: The driving unit comprises a guide rod (33) and an electromagnet (34). Two guide rods (33) are provided. The two guide rods (33) are respectively located on both sides of the float bag (31). The guide rod (33) passes through the extrusion plate (32) horizontally. One end of the guide rod (33) is fixedly arranged on the float box (1). The other end of the guide rod (33) is fixedly arranged on the limit block (35). The limit block (35) abuts against the extrusion plate (32). A second spring (36) is sleeved on the guide rod (33). The second spring (36) is located between the extrusion plate (32) and the float box (1). The two ends of the second spring (36) are respectively connected to the float box (1) and the extrusion plate (32). The electromagnet (34) is located between the extrusion plate (32) and the float box (1). The electromagnet (34) is fixedly arranged on the float box (1). A gap is provided between the electromagnet (34) and the extrusion plate (32).

7. The offshore photovoltaic support frame according to claim 5, characterized in that: The top end of the fixed tube (13) is arranged at the bottom of the floating bag (31), and the fixed tube (13) is in communication with the floating bag (31).

8. The offshore photovoltaic support frame according to claim 1, characterized in that: A flange (25) is provided on the inner peripheral wall of the mounting hole (4), the bottom of the rotating disk (2) is in contact with the top of the flange (25), and the top of the rotating disk (2) and the top of the buoyancy box (1) are in the same plane.

9. The offshore photovoltaic support frame according to claim 1, characterized in that: Both sides of the installation cavity (5) are provided with a slot (26), a pin (27) is inserted into the slot (26), a tightening screw (28) is threadedly connected to the pin (27), and a plurality of through holes (29) and a plurality of protrusions (30) are provided on the inner side wall of the installation cavity (5), the plurality of through holes (29) and the plurality of protrusions (30) are cross-arranged, and the through holes (29) and the protrusions (30) are both located between the two slots (26).

10. The offshore photovoltaic support frame according to claim 1, characterized in that: The number of each group of air holes (10) is set to be multiple, and the multiple air holes (10) in the same group are distributed along the inclined direction of the mounting frame (3).

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