Overwater photovoltaic device

Abstract

The invention discloses an overwater photovoltaic device, and relates to the technical field of photovoltaic platforms. The device comprises a mounting frame which comprises a guide rail; the number of the guide columns is multiple, and one ends of the multiple guide columns are connected with the guide rail; the number of the photovoltaic units is multiple, and the photovoltaic units are connected with the other ends of the guide columns; the plurality of folding connecting rods are connected with the guide columns, and the folding connecting rods are used for controlling the photovoltaic units to contract or expand; and the number of the transmission assemblies is multiple, the two ends of the transmission assemblies are connected with the two adjacent folding connecting rods, and the transmission assemblies are used for controlling the guide columns to slide in the guide rails. Through the linkage design of the guide rails, the guide columns and the folding connecting rods, the photovoltaic units can be rapidly contracted to a low-wind-resistance state, displacement or damage caused by structure looseness in strong wind and rainstorm is avoided, and the wind and wave resistance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic platforms, in particular to a water photovoltaic device. BACKGROUND

[0002] Water photovoltaic platforms are solar power generation systems installed on the surface of water bodies. They use water surface space to deploy photovoltaic modules to directly convert solar energy into electricity. This technology belongs to the field of renewable energy and aims to optimize land use efficiency while reducing dependence on fossil fuels. Water photovoltaic systems support photovoltaic modules floating on the water surface through buoyancy structures, not only avoiding land resource competition, but also utilizing the cooling effect of water to improve power generation efficiency. In the context of global energy transformation, water photovoltaic platforms help increase the proportion of clean energy supply, reduce carbon emissions, and enhance the diversity and security of energy supply, thereby addressing the challenges of climate change and energy shortages.

[0003] Although water photovoltaic platforms have significant advantages in energy applications, existing technologies have serious problems in severe weather conditions. Specifically, in extreme environments such as strong winds and heavy rains, photovoltaic supports are prone to loosening or deformation due to external wind resistance and water resistance. This loosening can cause the support structure to lose stability, which in turn can cause displacement, collision, or damage to photovoltaic modules, such as module cracking or breaking, not only reducing power generation efficiency, but also potentially causing safety hazards. In addition, the dynamic characteristics of the water environment can exacerbate the fatigue and deformation risk of the support, making the entire platform face higher maintenance costs and operational risks. SUMMARY

[0004] Therefore, the present application provides a water photovoltaic device, which mainly aims to solve the technical problem that traditional photovoltaic supports are prone to loosening or deformation due to external wind resistance and water resistance in extreme environments such as strong winds and heavy rains, not only reducing power generation efficiency, but also potentially causing safety hazards.

[0005] The present application provides a water photovoltaic device, comprising:

[0006] a mounting frame, the mounting frame comprising a guide rail;

[0007] a plurality of guide columns, one end of the plurality of guide columns being connected to the guide rail;

[0008] a plurality of photovoltaic units, the other end of the plurality of guide columns being connected to the plurality of photovoltaic units, the plurality of photovoltaic units being retractable or expandable;

[0009] a plurality of folding links, the plurality of folding links being connected to the plurality of guide columns, the plurality of folding links being used to control the plurality of photovoltaic units to retract or expand;

[0010] Transmission assemblies, the number of which is multiple, are connected with two adjacent folding connecting rods at two ends, and the transmission assemblies are used for controlling the guide column to slide in the guide rail.

[0011] In an embodiment, the photovoltaic unit comprises:

[0012] A first floating box;

[0013] A counterweight connected with the first floating box;

[0014] A support rod, one end of which is arranged on the counterweight, and the other end of which penetrates the first floating box;

[0015] A fixing frame connected with the end of the support rod penetrating the first floating box;

[0016] A photovoltaic panel arranged on the fixing frame;

[0017] An arc-shaped tooth block arranged at the connection between the fixing frame and the photovoltaic panel, used for adjusting the inclination angle of the photovoltaic panel;

[0018] A limiting rod, one end of which is connected with the first floating box;

[0019] A second floating box connected with the other end of the limiting rod.

[0020] In an embodiment, the photovoltaic unit further comprises:

[0021] A transmission plate connected with the first floating box and penetrated by the support rod;

[0022] A plurality of pulley blocks, part of which is arranged on the counterweight and part of which is arranged on the transmission plate;

[0023] A traction rope, one end of which is connected with the first floating box and the other end of which is connected with the second floating box, the traction rope being arranged through the pulley blocks;

[0024] A telescopic assembly arranged on the first floating box, used for pushing the transmission plate and moving the photovoltaic panel;

[0025] A plurality of limiting blocks, part of which is arranged on the first floating box and part of which is arranged on the counterweight.

[0026] In an embodiment, the device further comprises:

[0027] Rectangular grooves, a plurality of which are formed in the guide column along the length direction of the guide rail, and the folding connecting rod is arranged in the rectangular groove;

[0028] Tooth-shaped grooves, a plurality of which are formed in the end of the folding connecting rod;

[0029] First guide grooves, a plurality of which are formed on both sides of the guide column for accommodating the limiting block, and the end of the first guide groove is located at the middle part of the rectangular groove;

[0030] Second guide grooves, a plurality of which are formed in the rectangular groove;

[0031] Outer guide blocks, a plurality of which are arranged on both sides of the folding connecting rod;

[0032] Annular limiting grooves, a plurality of which are formed on the side surface of the outer guide block;

[0033] Second guide blocks, a plurality of which are connected with the outer guide block, and the second guide block is arranged in the second guide groove.

[0034] In a feasible implementation, the device further comprises:

[0035] Extension limiting assemblies, a plurality of which are arranged inside the guide column;

[0036] Contraction limiting assemblies, a plurality of which are arranged inside the guide column close to one end of the photovoltaic unit;

[0037] First receiving grooves, a plurality of which are formed in the rectangular groove;

[0038] Second receiving grooves, a plurality of which are formed in the interior of the guide column;

[0039] Annular grooves, a plurality of which are formed in the first guide groove;

[0040] A sliding groove is formed in the guide column.

[0041] In a feasible implementation, the extension limiting assembly comprises:

[0042] A limiting plate is arranged in the second receiving groove;

[0043] A reset spring is connected with one side of the limiting plate which is towards the side of the rectangular groove;

[0044] An intercepting block connected with the other end of the reset spring;

[0045] A protruding block provided on the side of the limiting plate facing the first guide slot, the end face of the protruding block being an inclined face, and the protruding block being provided in the annular groove.

[0046] In an available embodiment, the contraction limiting assembly comprises:

[0047] A second telescopic rod provided in the first containing groove;

[0048] A horizontal push block connected with the end of the second telescopic rod;

[0049] Clamping claws provided on both sides of the horizontal push block.

[0050] In an available embodiment, the transmission assembly comprises:

[0051] Transmission connecting blocks, the folding connecting rods being provided in the transmission connecting blocks;

[0052] Second connecting rods, both ends of the second connecting rods being connected with two adjacent transmission connecting blocks;

[0053] Auxiliary motors connected with the transmission connecting blocks, for driving the folding connecting rods to rotate.

[0054] In an available embodiment, the mounting frame further comprises:

[0055] Support platforms, the number of the support platforms being multiple, and the support platforms being provided at one end of the guide rails;

[0056] Output boxes, the number of the output boxes being multiple, and the output boxes being provided at the other end of the guide rails, for lifting the folding connecting rods;

[0057] Fixing piles, the number of the fixing piles being multiple, and some of the fixing piles being provided on the support platforms and some of the fixing piles being provided on the output boxes.

[0058] In an available embodiment, the device further comprises:

[0059] A threaded rod provided inside the output box;

[0060] A guide sliding block connected with the threaded rod;

[0061] A first limiting groove provided on the side of the output box facing the guide rails, for accommodating the guide sliding block;

[0062] A first connecting rod is connected with the guide slider, and the first connecting rod is also connected with the folding connecting rod.

[0063] The application provides a waterborne photovoltaic device, comprising: a mounting frame comprising a guide rail; a plurality of guide columns, one end of the plurality of guide columns being connected with the guide rail; a plurality of photovoltaic units, the other end of the plurality of guide columns being connected with the plurality of photovoltaic units, the plurality of photovoltaic units being retractable or expandable; a plurality of folding connecting rods, the plurality of folding connecting rods being connected with the plurality of guide columns, the plurality of folding connecting rods being used for controlling the plurality of photovoltaic units to retract or expand; and a plurality of transmission assemblies, two ends of each of the plurality of transmission assemblies being connected with two adjacent folding connecting rods, the plurality of transmission assemblies being used for controlling the plurality of guide columns to slide in the guide rail.

[0064] The application has the advantages that: through the linkage design of the guide rail, the guide column and the folding connecting rod, the photovoltaic unit can be quickly retracted to a low wind resistance state, displacement or damage caused by structural looseness in strong wind and rain is avoided, and the wind and wave resistance is improved; the transmission assembly is meshed with the linkage folding connecting rod through the tooth-shaped groove, the threaded rod in the output box drives the guide slider to move synchronously, a plurality of photovoltaic units are retracted or expanded at the same time, the maintenance complexity is reduced, and the service life of the device is prolonged.

[0065] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0066] The technical solutions of the application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0067] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the application without imposing undue limitation thereon. In the drawings:

[0068] Figure 1 Fig. 1 shows a structural schematic diagram of a waterborne photovoltaic device provided by an embodiment of the application;

[0069] Figure 2 Fig. 4 shows a structural schematic diagram of an output box provided by an embodiment of the application;

[0070] Figure 3 Fig. 6 shows a structural schematic diagram of a second floating box provided by an embodiment of the application;

[0071] Figure 4 Fig. 8 shows a structural schematic diagram of a limiting rod provided by an embodiment of the application;

[0072] Figure 5 A structural schematic diagram of the transmission connecting block provided by the embodiment of the application is shown;

[0073] Figure 6 A structural schematic diagram of the second guide block provided by the embodiment of the application is shown;

[0074] Figure 7 A structural schematic diagram of the limiting clamping block provided by the embodiment of the application is shown;

[0075] Figure 8 A structural schematic diagram of the intercepting clamping block provided by the embodiment of the application is shown;

[0076] Figure 9 A structural schematic diagram of the contraction limiting assembly provided by the embodiment of the application is shown;

[0077] Figure 10 A structural schematic diagram of the reset spring provided by the embodiment of the application is shown.

[0078] In the figure:

[0079] 1, mounting frame; 101, fixed pile; 102, support platform; 103, guide rail; 104, output box body; 105, threaded rod; 106, guide sliding block; 107, first limiting groove; 108, first connecting rod; 2, photovoltaic unit; 201, photovoltaic panel; 202, fixed frame; 203, arc-shaped tooth block; 204, first floating box; 205, second floating box; 206, traction rope; 207, limiting clamping block; 208, counterweight block; 209, pulley block; 210, telescopic assembly; 211, transmission plate; 212, limiting rod; 213, support rod; 3, guide column; 301, first guide groove; 302, sliding groove; 303, rectangular groove; 304, second guide groove; 305, first containing groove; 306, annular groove; 307, second containing groove; 4, transmission assembly; 401, auxiliary motor; 402, transmission connecting block; 403, second connecting rod; 5, folding connecting rod; 501, tooth-shaped groove; 502, outer guide block; 503, second guide block; 504, annular limiting groove; 6, extension limiting assembly; 601, limiting plate; 602, protruding block; 603, intercepting clamping block; 604, reset spring; 7, contraction limiting assembly; 701, second telescopic rod; 702, horizontal push block; 703, clamping claw. DETAILED DESCRIPTION

[0080] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0081] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0082] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0083] Referring to Figure 1 , a structural schematic diagram of a water photovoltaic device provided by an embodiment of the present application is shown, which comprises:

[0084] A mounting frame 1, the mounting frame 1 comprises a guide rail 103;

[0085] A plurality of guide columns 3, one end of the plurality of guide columns 3 is connected with the guide rail 103;

[0086] A plurality of photovoltaic units 2, the other end of the plurality of guide columns 3 is connected with the guide rail 103, the plurality of photovoltaic units 2 can be retracted or expanded;

[0087] A plurality of folding connecting rods 5, the plurality of folding connecting rods 5 are connected with the guide columns 3, the plurality of folding connecting rods 5 are used for controlling the plurality of photovoltaic units 2 to retract or expand;

[0088] A plurality of transmission assemblies 4, two ends of the plurality of transmission assemblies 4 are connected with two adjacent folding connecting rods 5, the plurality of transmission assemblies 4 are used for controlling the guide columns 3 to slide in the guide rail 103.

[0089] In the above embodiment, the mounting frame 1 is fixed inside the water body through a plurality of parallel guide rails 103, the top end of the guide rail 103 is slidingly connected with a plurality of guide columns 3, the bottom end of the guide column 3 is provided with a sliding groove 302, so that the guide column 3 can move along the length direction of the guide rail 103. The photovoltaic unit 2 is installed on the side of the guide column 3, and is controlled to be folded or unfolded through the folding connecting rod 5; the folding connecting rod 5 is located in the rectangular groove 303 of the guide column 3, and is connected with adjacent guide columns 3 through the transmission assembly 4. The two ends of the transmission assembly 4 are hinged with the folding connecting rod 5, for driving the guide column 3 to slide in the guide rail 103, so as to realize the overall folding action of the photovoltaic platform.

[0090] The structure provides stable guidance through the guide rail 103, reduces the interference of water flow or wind force; the sliding design of the guide column 3 allows the photovoltaic unit 2 to be scaled synchronously, reduces the wind resistance and water resistance when being folded in bad weather, and thus significantly improves the safety and risk resistance of the platform. The linkage folding mechanism of the plurality of photovoltaic units 2 reduces manual intervention, ensures efficient operation, and avoids overall failure caused by single-point failure.

[0091] Referring to Figure 3 and Figure 4 , a structure schematic diagram of a second floating box and a limiting rod provided by the embodiment of the application is shown, further, the photovoltaic unit 2 comprises:

[0092] a first floating box 204;

[0093] a counterweight 208 connected with the first floating box 204;

[0094] a support rod 213, one end of the support rod 213 is arranged on the counterweight 208, and the other end of the support rod 213 penetrates the first floating box 204;

[0095] a fixing frame 202 connected with one end of the support rod 213 penetrating the first floating box 204;

[0096] a photovoltaic panel 201 arranged on the fixing frame 202;

[0097] an arc-shaped tooth block 203 arranged at the connection position of the fixing frame 202 and the photovoltaic panel 201, for adjusting the inclination angle of the photovoltaic panel 201;

[0098] a limiting rod 212, one end of the limiting rod 212 is connected with the first floating box 204;

[0099] a second floating box 205 connected with the other end of the limiting rod 212.

[0100] In the above embodiment, the first float 204 of the photovoltaic unit 2 is connected with the counterweight 208, the top end of the counterweight 208 is fixed with a support rod 213, the support rod 213 penetrates through the first float 204 and extends above the water surface, and the top end of the support rod 213 is hingedly connected with the fixed frame 202. The photovoltaic panel 201 is installed on the fixed frame 202, and an arc-shaped tooth block 203 is arranged at the connection position, which is used for adjusting the inclination angle of the photovoltaic panel 201. The first float 204 is rotationally connected with the second float 205 through a limiting rod 212; when the photovoltaic unit 2 is unfolded, the first float 204 and the second float 205 are in the same horizontal plane, and the limiting rod 212 restricts the rotation range of the second float 205.

[0101] The counterweight 208 increases the overall stability and prevents the photovoltaic panel 201 from shaking or colliding due to water surface fluctuation; the arc-shaped tooth block 203 allows the angle of the photovoltaic panel 201 to be adjusted, thereby optimizing the light receiving efficiency. During folding, the second float 205 can be rotated downward to reduce the projection area of the unit, facilitate modular transportation and rapid deployment, reduce the folding resistance, and improve the ability of the platform to adapt to different environments.

[0102] Referring to Figure 7 , a structure diagram of a limiting block is shown, and further, the photovoltaic unit 2 further comprises:

[0103] A transmission plate 211, which is connected with the first float 204 and penetrated by the support rod 213;

[0104] A plurality of pulley blocks 209, part of which is arranged on the counterweight 208 and part of which is arranged on the transmission plate 211;

[0105] A traction rope 206, one end of which is connected with the first float 204 and the other end of which is connected with the second float 205, the traction rope 206 penetrating through the pulley block 209;

[0106] A telescopic assembly 210, which is arranged on the first float 204 and used for pushing the transmission plate 211 to move the photovoltaic panel 201;

[0107] A plurality of limiting blocks 207, part of which is arranged on the first float 204 and part of which is arranged on the counterweight 208.

[0108] In the above embodiment, the transmission plate 211 is slidably mounted on the support rod 213 at the top end of the first buoy 204; the top end of the counterweight 208 and the bottom end of the transmission plate 211 are both mounted with the pulley block 209. One end of the traction rope 206 is fixed to the first buoy 204, the other end is connected to the second buoy 205, and passes through the pulley block 209 to form a traction system. The telescopic assembly 210 is fixed on the first buoy 204 for pushing the transmission plate 211 to slide along the support rod 213; the limiting blocks 207 are fixed on both sides of the first buoy 204 and the counterweight 208 respectively. When the telescopic assembly 210 pushes out the transmission plate 211, the traction rope 206 pulls the second buoy 205 downward to the sides of the counterweight 208 through the pulley block 209.

[0109] The pulley block 209 and the traction rope 206 form a simple and efficient transmission mechanism, reducing energy loss; the telescopic assembly 210 provides controllable thrust to ensure that the second buoy 205 is stably retracted, avoiding sudden movement causing structural damage. The limiting blocks 207 guide the sliding process to prevent deviation; this design reduces the unit volume when folding, improves space utilization, and automatically adjusts the position after retraction using buoyancy, enhancing the reliability of the platform in dynamic water environment.

[0110] Referring to Figure 6 , a structural diagram of a second guide block is shown, further, the device further comprises:

[0111] A rectangular groove 303, the number of the rectangular groove 303 is multiple, which is opened in the length direction of the guide column 3 along the guide rail 103, and the folding connecting rod 5 is arranged in the rectangular groove 303;

[0112] A tooth-shaped groove 501, the number of the tooth-shaped groove 501 is multiple, which is opened in the end of the folding connecting rod 5;

[0113] A first guide groove 301, the number of the first guide groove 301 is multiple, which is opened on both sides of the guide column 3, for accommodating the limiting block 207, and the end of the first guide groove 301 is located at the middle part of the rectangular groove 303;

[0114] A second guide groove 304, the number of the second guide groove 304 is multiple, which is opened in the rectangular groove 303;

[0115] An outer guide block 502, the number of the outer guide block 502 is multiple, which is arranged on both sides of the folding connecting rod 5;

[0116] A ring-shaped limiting groove 504, the number of the ring-shaped limiting groove 504 is multiple, which is opened on the side surface of the outer guide block 502;

[0117] A plurality of second guide blocks 503 are connected with the outer guide blocks 502 and arranged in the second guide groove 304.

[0118] In the above embodiment, the rectangular groove 303 is arranged in the guide column 3 along the length direction of the guide rail 103 and internally accommodates the slidable folding link 5. The folding link 5 is provided with a tooth-shaped groove 501 at the end thereof, which is used for engaging and connecting with the adjacent folding link 5. The first guide groove 301 is arranged at both sides of the guide column 3 and accommodates the longitudinal sliding of the limiting block 207. The end of the first guide groove 301 is located at the center of the rectangular groove 303. The second guide groove 304 is arranged in the inner side of the rectangular groove 303. The outer guide block 502 is arranged at both sides of the folding link 5. The outer guide block 502 is provided with a ring-shaped limiting groove 504 at the side thereof. The center of the ring-shaped limiting groove 504 is connected with the second guide block 503. The second guide block 503 can slide along the second guide groove 304 in the longitudinal direction, so that the folding link 5 rotates around the second guide block 503.

[0119] The engagement design of the tooth-shaped groove 501 ensures the synchronous rotation of the plurality of folding links 5, avoiding the jam caused by the asynchronous folding. The first guide groove 301 and the second guide groove 304 provide double guidance, constrain the movement trajectory of the limiting block 207 and the outer guide block 502, and reduce the friction loss. In the platform expansion state, the folding link 5 is located at the center of the rectangular groove 303, maintaining the compact structure. When folding, the folding link 5 moves to the upper and lower sides, reducing the overall height, facilitating the application in deep water area, and preventing the deformation of the assembly due to stress concentration.

[0120] Further, the device further comprises:

[0121] A plurality of extension limiting assemblies 6 are arranged in the guide column 3.

[0122] A plurality of contraction limiting assemblies 7 are arranged in the guide column 3 close to one end of the photovoltaic unit 2.

[0123] A plurality of first accommodating grooves 305 are arranged in the rectangular groove 303.

[0124] A plurality of second accommodating grooves 307 are arranged in the guide column 3.

[0125] A plurality of ring-shaped grooves 306 are arranged in the first guide groove 301.

[0126] A sliding groove 302 is arranged on the guide column 3.

[0127] In the above embodiment, the extension limiting assembly 6 is installed inside the guide column 3, including a limiting plate 601 and an intercepting block 603; the contraction limiting assembly 7 is installed at the top end of the inner surface of the guide column 3, including a second telescopic rod 701 and a clamping jaw 703. The first receiving groove 305 is opened at the top end of the rectangular groove 303, used for accommodating the contraction limiting assembly 7; the second receiving groove 307 is located between the bottom end of the first guide groove 301 and the second guide groove 304, used for accommodating the extension limiting assembly 6. The annular groove 306 is opened in the first guide groove 301, for the extension of the protrusion 602; the sliding groove 302 is opened at the bottom end of the guide column 3, matched with the guide rail 103 for sliding.

[0128] The extension limiting assembly 6 locks the folding connecting rod 5 in the unfolded state, preventing accidental contraction; the contraction limiting assembly 7 clamps and fixes at the folding top end, avoiding rebound. The annular groove 306 and the sliding groove 302 enhance the linkage between the assemblies, ensuring that the limiting action is synchronized with the movement of the photovoltaic unit 2. This design quickly switches states in bad weather, reduces the risk of platform damage, and improves operation safety through an automatic locking mechanism, without the need for additional manual reinforcement.

[0129] Referring to Figure 8 and Figure 10 , the structure schematic diagrams of the intercepting block and the reset spring are shown, further, the extension limiting assembly 6 includes:

[0130] a limiting plate 601, the limiting plate 601 is arranged in the second receiving groove 307;

[0131] a reset spring 604, one end of the reset spring 604 is connected with one side of the limiting plate 601 facing the rectangular groove 303;

[0132] an intercepting block 603, the intercepting block 603 is connected with the other end of the reset spring 604;

[0133] a protrusion 602, the protrusion 602 is arranged on one side of the limiting plate 601 facing the first guide groove 301, and an end surface of the protrusion 602 is an inclined surface and is arranged in the annular groove 306.

[0134] In the above embodiment, the limiting plate 601 of the extension limiting assembly 6 is fixed inside the second receiving groove 307, one side of the limiting plate 601 facing the rectangular groove 303 is connected with the intercepting block 603 through the reset spring 604, and the intercepting block 603 can extend to the inside of the rectangular groove 303. One side of the limiting plate 601 facing the first guide groove 301 is provided with the protrusion 602, an end surface of the protrusion 602 is an inclined surface and extends to the annular groove 306. When the photovoltaic unit 2 is contracted, the limiting block 207 slides downward to press the inclined surface of the protrusion 602, and drives the intercepting block 603 to insert into the annular limiting groove 504.

[0135] The reset spring 604 provides an elastic reset force to keep the intercepting block 603 stable without external force; the inclined surface of the protruding block 602 facilitates smooth extrusion of the limiting block 207, reducing mechanical impact. The assembly fixes the folding connecting rod 5 in the unfolded state, preventing photovoltaic units 2 from being squeezed and damaged due to movement of the guide column 3; it is automatically unlocked when retracted, ensuring fast transition, improving platform response speed and overall durability, and is particularly suitable for high-frequency folding scenarios.

[0136] Referring to Figure 9 , a structural schematic diagram of the retraction limiting assembly provided by the embodiment of the application is shown, further, the retraction limiting assembly 7 comprises:

[0137] The second telescopic rod 701 is arranged in the first containing groove 305;

[0138] The horizontal push block 702 is connected with the end of the second telescopic rod 701;

[0139] The clamping claw 703 is arranged on both sides of the horizontal push block 702.

[0140] In the above embodiment, the second telescopic rod 701 of the retraction limiting assembly 7 is fixed inside the first containing groove 305, and the telescopic end is connected with the horizontal push block 702; the horizontal push block 702 is hingedly connected with the clamping claw 703 on both sides. When the folding connecting rod 5 moves to the top end of the rectangular groove 303, the second telescopic rod 701 lifts the horizontal push block 702 upward, and drives the hook end of the clamping claw 703 to clamp the annular limiting groove 504; when it is pushed out downward, the clamping claw 703 is released.

[0141] The hinged design of the clamping claw 703 allows adaptive clamping, ensuring tight fixing of the annular limiting groove 504; the second telescopic rod 701 provides linear driving force, simplifying the control logic. The assembly locks the folding connecting rod 5 in the folded state, preventing rebound due to buoyancy or water flow; the locking force is uniformly distributed, avoiding local stress damage, significantly improving the stability of the platform after retraction, and reducing maintenance requirements.

[0142] Referring to Figure 5 , a structural schematic diagram of the transmission connecting block provided by the embodiment of the application is shown, further, the transmission assembly 4 comprises:

[0143] The folding connecting rod 5 is arranged in the transmission connecting block 402;

[0144] The second connecting rod 403 is connected with two adjacent transmission connecting blocks 402 at both ends;

[0145] An auxiliary motor 401 is connected with the transmission connecting block 402, and is used to drive the folding link 5 to rotate.

[0146] In the above embodiment, the transmission connecting block 402 internally accommodates the folding link 5, and a plurality of transmission connecting blocks 402 are connected with each other through the second connecting rod 403; the auxiliary motor 401 is detachably installed on one side of the transmission connecting block 402, and is used to drive the folding link 5 to rotate. The folding link 5 is engaged in the transmission connecting block 402 through the tooth-shaped groove 501, and the auxiliary motor 401 provides auxiliary torque.

[0147] The second connecting rod 403 ensures that the transmission connecting blocks 402 move synchronously and are prevented from deviating; the auxiliary motor 401 reduces the manual operation load and avoids that the folding link 5 is bent or broken due to excessive load. The design is suitable for large platforms, realizes stable scaling of a plurality of photovoltaic units 2, improves folding efficiency, reduces energy loss through motor assistance, and prolongs the service life of the assembly.

[0148] Referring to Figure 2 , a structure schematic diagram of an output box provided by the embodiment is shown, and further, the mounting frame 1 further includes:

[0149] A support platform 102, the number of the support platform 102 is multiple, and the support platform 102 is arranged at one end of the guide rail 103;

[0150] An output box 104, the number of the output box 104 is multiple, and the output box 104 is arranged at the other end of the guide rail 103, and is used to lift the folding link 5;

[0151] A fixed pile 101, the number of the fixed pile 101 is multiple, and part of the fixed pile 101 is arranged on the support platform 102 and part of the fixed pile 101 is arranged on the output box 104.

[0152] In the above embodiment, the guide rail 103 of the mounting frame 1 is connected with the support platform 102 and the output box 104 at the end; the support platform 102 and the output box 104 are both installed with multiple fixed piles 101 at the bottom, and the fixed piles 101 are anchored to the water bottom. The guide column 3 is slidably connected with the guide rail 103 through the sliding groove 302.

[0153] The fixed pile 101 provides overall anchoring and prevents the platform from drifting; the support platform 102 and the output box 104 serve as driving base points and ensure stable force transmission. The structure is suitable for water level changes, and can be lifted through the fixed pile 101, so as to cope with seasonal water level fluctuations, improve the environmental adaptability and long-term reliability of the platform.

[0154] Further, the device further includes:

[0155] A threaded rod 105, the threaded rod 105 is arranged inside the output box 104;

[0156] A guide slider 106 is connected with the threaded rod 105;

[0157] A first limiting groove 107 is arranged on the side of the output box 104 facing the guide rail 103, for accommodating the guide slider 106;

[0158] A first connecting rod 108 is connected with the guide slider 106, and also connected with the folding connecting rod 5.

[0159] In the above embodiment, the output box 104 is internally provided with a rotatable threaded rod 105, the two ends of which are oppositely threaded, and a guide slider 106 is sleeved thereon; a first limiting groove 107 is arranged on the side of the output box 104 facing the guide rail 103, and the guide slider 106 can slide synchronously along the first limiting groove 107. One end of the first connecting rod 108 is connected with the guide slider 106, and the other end is connected with the folding connecting rod 5. When the threaded rod 105 rotates, the guide slider 106 drives the first connecting rod 108 to drive the folding connecting rod 5 to move.

[0160] The symmetrical design of the threaded rod 105 realizes synchronous inward or outward movement, reduces the delay; the first limiting groove 107 restricts the trajectory of the guide slider 106, preventing skewing. This mechanism provides uniform driving force, ensures efficient folding of multiple photovoltaic units 2, avoids difficulty in traction caused by a large number, and reduces the operation complexity.

[0161] A structure diagram of a water-based photovoltaic device provided by the present application, comprising: a mounting frame 1, the mounting frame 1 comprising a guide rail 103; a guide column 3, the number of guide columns 3 is multiple, one end of the multiple guide columns 3 is connected with the guide rail 103; a photovoltaic unit 2, the number of photovoltaic units 2 is multiple, the other end of the guide column 3 is connected with the photovoltaic unit 2, the photovoltaic unit 2 can be contracted or expanded; a folding connecting rod 5, the number of folding connecting rods 5 is multiple, the folding connecting rod 5 is connected with the guide column 3, the folding connecting rod 5 is used for controlling the contraction or expansion of the photovoltaic unit 2; a transmission assembly 4, the number of transmission assemblies 4 is multiple, two ends of the transmission assembly 4 are connected with two adjacent folding connecting rods 5, the transmission assembly 4 is used for controlling the sliding of the guide column 3 in the guide rail 103. The present application realizes the linkage design of the guide rail, the guide column and the folding connecting rod, the photovoltaic unit can be quickly contracted to a low wind resistance state, avoiding displacement or damage caused by loose structure in strong wind and rain, and improving the wind and wave resistance; the transmission assembly is meshed with the linkage folding connecting rod through the tooth-shaped groove, the guide slider is synchronously moved by the threaded rod in the output box, multiple photovoltaic units are simultaneously contracted or expanded, the maintenance complexity is reduced, and the service life of the device is prolonged.

[0162] Those skilled in the art can understand that the modules or flows in the drawings are not necessarily required for implementing the present application. Those skilled in the art can understand that the modules in the devices in the implementation scenarios can be distributed in the devices in the implementation scenarios according to the description of the implementation scenarios, or can be changed to be located in one or more devices different from the implementation scenarios. The modules in the above implementation scenarios can be combined into one module, or can be further split into multiple sub-modules.

[0163] The above application numbers are only for description, and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only some specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A floating photovoltaic device, characterized in that, include: Mounting frame (1), the mounting frame (1) including guide rail (103); Guide post (3), there are multiple guide posts (3), one end of the multiple guide posts (3) is connected to the guide rail (103); A photovoltaic unit (2), wherein there are multiple photovoltaic units (2), which are connected to the other end of the guide column (3), and the photovoltaic unit (2) can be retracted or expanded; Folding link (5), there are multiple folding link (5) connected to the guide post (3), the folding link (5) is used to control the photovoltaic unit (2) to shrink or expand; The transmission assembly (4) is multiple, and its two ends are connected to two adjacent folding connecting rods (5). The transmission assembly (4) is used to control the guide column (3) to slide within the guide rail (103).

2. The apparatus according to claim 1, characterized in that, The photovoltaic unit (2) includes: First pontoon (204); A counterweight (208) is connected to the first pontoon (204); A support rod (213) is provided at one end on the counterweight (208), and the other end of the support rod (213) passes through the first float (204); A fixing frame (202) is connected to one end of the support rod (213) that passes through the first float (204); A photovoltaic panel (201) is mounted on the fixing frame (202); Arc-shaped toothed block (203), the arc-shaped toothed block (203) is provided at the connection between the fixed frame (202) and the photovoltaic panel (201), and is used to adjust the tilt angle of the photovoltaic panel (201); A limiting rod (212) is provided, one end of which is connected to the first float (204); The second pontoon (205) is connected to the other end of the limiting rod (212).

3. The apparatus according to claim 2, characterized in that, The photovoltaic unit (2) also includes: The transmission plate (211) is connected to the first float (204) and is penetrated by the support rod (213); Pulley blocks (209), the number of which is multiple, some of which are set on the counterweight block (208) and some of which are set on the transmission plate (211); A traction rope (206) is provided, one end of which is connected to the first float (204) and the other end of which is connected to the second float (205). The traction rope (206) passes through the pulley block (209). Telescopic assembly (210), which is disposed on the first float (204), is used to push the transmission plate (211) and thereby move the photovoltaic panel (201); The limiting block (207) is a plurality of such limiting blocks (207), some of which are located on the first float (204) and some of which are located on the counterweight (208).

4. The apparatus according to claim 3, characterized in that, The device further includes: A rectangular groove (303) is provided, and there are multiple rectangular grooves (303) provided on the guide post (3) along the length direction of the guide rail (103). The folding connecting rod (5) is provided in the rectangular groove (303). Toothed grooves (501), the number of which is multiple, are formed at the end of the folding connecting rod (5); The first guide groove (301) is provided on both sides of the guide post (3) to accommodate the limiting block (207). The end of the first guide groove (301) is located in the middle part of the rectangular groove (303). The second guide groove (304) is a plurality of the second guide grooves (304) and is formed in the rectangular groove (303); There are multiple outer guide blocks (502) and they are located on both sides of the folding connecting rod (5). Annular limiting groove (504), wherein there are multiple annular limiting grooves (504) and they are formed on the side of the outer guide block (502); The second guide block (503) is a plurality of the second guide blocks (503) and is connected to the outer guide block (502). The second guide block (503) is disposed in the second guide groove (304).

5. The apparatus according to claim 4, characterized in that, The device further includes: An extension limiting component (6) is provided, and there are multiple extension limiting components (6) provided inside the guide post (3); A shrinkage limiting component (7) is provided, and there are multiple shrinkage limiting components (7), which are located inside the guide post (3) near one end of the photovoltaic unit (2); The first receiving slot (305) is multiple and is formed within the rectangular slot (303); The second receiving slot (307) is multiple and is formed inside the guide post (3); An annular groove (306), wherein there are multiple annular grooves (306) and they are formed in the first guide groove (301); A groove (302) is formed on the guide post (3).

6. The apparatus according to claim 5, characterized in that, The extended limiting component (6) includes: A limiting plate (601) is disposed in the second receiving groove (307); A return spring (604), one end of which is connected to the side of the limiting plate (601) facing the rectangular groove (303); An intercepting block (603) is connected to the other end of the reset spring (604); A protrusion (602) is provided on the side of the limiting plate (601) facing the first guide groove (301), and the end face of the protrusion (602) is an inclined surface, which is provided in the annular groove (306).

7. The apparatus according to claim 5, characterized in that, The contraction limiting component (7) includes: The second telescopic rod (701) is disposed in the first receiving slot (305); A horizontal push block (702) is connected to the end of the second telescopic rod (701); Clamping claws (703) are provided on both sides of the horizontal push block (702).

8. The apparatus according to claim 1, characterized in that, The transmission assembly (4) includes: Transmission connecting block (402), the folding connecting rod (5) is disposed inside the transmission connecting block (402); The second connecting rod (403) has two ends connected to the two adjacent transmission connecting blocks (402); An auxiliary motor (401) is connected to the transmission connecting block (402) and is used to drive the folding connecting rod (5) to rotate.

9. The apparatus according to claim 1, characterized in that, The mounting frame (1) also includes: Support platform (102), there are multiple support platforms (102), which are located at one end of the guide rail (103); Output housing (104), there are multiple output housings (104), located at the other end of the guide rail (103), used to lift the folding connecting rod (5); Fixed piles (101), there are multiple fixed piles (101), some are set on the support platform (102) and some are set on the output box (104).

10. The apparatus according to claim 9, characterized in that, The device further includes: A threaded rod (105) is disposed inside the output housing (104); Guide slider (106), the guide slider (106) is connected to the threaded rod (105); The first limiting groove (107) is formed on the side of the output box (104) facing the guide rail (103) to accommodate the guide slider (106); The first connecting rod (108) is connected to the guide slider (106) and is also connected to the folding connecting rod (5).

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