A modular mobile device for a photovoltaic energy storage off-grid system

Abstract

The present invention provides a modular mobile device for a photovoltaic energy storage off-grid system, which relates to the technical field of photovoltaic systems. It includes a carrier vehicle, on the surface of which a protective carriage is fixedly connected. Inside the protective carriage, an integrated box and a crane are installed. Inside the protective carriage, a number of storage boxes are provided. Inside each storage box, a first support frame and a second support frame are arranged. Between the first support frame and the second support frame, two groups of first telescopic frames and second telescopic frames are symmetrically arranged. Between the two groups of first telescopic frames and second telescopic frames, a number of photovoltaic panels are arranged in parallel. On the surface of the second telescopic frame, a pick-up and placement groove is provided. Below the first support frame and the second support frame, support seats are arranged, and on the surface of each support seat, casters are symmetrically arranged. Below the first support frame and the second support frame, a number of electric control push rods are arranged. Through the rapid deployment, efficient daylighting, flexible storage and stable operation of the photovoltaic energy storage system, the present invention is applicable to scenarios of frequent migration or short-term power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic systems, and particularly to a modular mobile device for a photovoltaic energy storage off-grid system. Background Art

[0002] The photovoltaic energy storage off-grid system combines solar power generation and energy storage technologies, and can utilize solar energy to generate electricity when the light is sufficient, and release the stored electric energy when the power is needed, so as to provide continuous and reliable power support in areas without grid coverage or with unstable power supply;

[0003] The photovoltaic energy storage off-grid system mainly adopts a fixed installation, usually composed of multiple units such as photovoltaic modules, energy storage batteries, inverters, and control systems, and is installed by means of fixed brackets, infrastructure construction or machine rooms. Although such systems can meet certain off-grid power supply requirements, it is very difficult to disassemble, relocate or expand them after completion, and they are not suitable for application scenarios that require short-term power supply or frequent position changes. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a modular mobile device for a photovoltaic energy storage off-grid system, which is suitable for frequent relocation or short-term power supply scenarios through the rapid deployment, efficient daylighting, flexible storage and stable operation of the photovoltaic energy storage system.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A modular mobile device for a photovoltaic energy storage off-grid system, including a carrier vehicle, on the surface of which a protective carriage is fixedly connected. An integrated box and a crane are installed inside the protective carriage, including:

[0007] A plurality of storage boxes are arranged inside the protective carriage. First support frames and second support frames are arranged inside the storage boxes. Two groups of first telescopic frames and second telescopic frames are symmetrically arranged between the first support frame and the second support frame. The first telescopic frame is slidably connected with the second telescopic frame. A plurality of photovoltaic panels are arranged in parallel between the two groups of first telescopic frames and second telescopic frames. By rotating the photovoltaic panels to a vertical state and contracting the first telescopic frames and the second telescopic frames, the photovoltaic panels are easy to be stored. By rotating the photovoltaic panels to a horizontal state and adaptively extending the first telescopic frames and the second telescopic frames, the photovoltaic panels are easy to receive sunlight;

[0008] A placement slot is formed on the surface of the second telescopic frame. Through the placement slot, the number of photovoltaic panels between the two groups of first telescopic frames and second telescopic frames can be adjusted;

[0009] Support seats are provided below the first support frame and the second support frame. A limit telescopic rod is arranged between the two support seats, and two ends of the limit telescopic rod are respectively fixedly connected to the two support seats. Casters are symmetrically arranged on the surfaces of the support seats. By rotating to adjust the relative position of the caster and the support seat, the first support frame and the second support frame above the support seat can be easily moved;

[0010] A number of electric control push rods are provided below the first support frame and the second support frame. By adjusting the telescopic length of the electric control push rod, the normal direction of the upper surface of the photovoltaic panel approaches the irradiation direction of sunlight.

[0011] Further, first connection blocks are symmetrically and fixedly connected to the upper surface of the first support frame. A bottom connection block is fixedly connected to the bottom surface of the first connection block. The bottom connection block is fixedly connected to the first telescopic frame. The second support frame and the second telescopic frame are both fixedly connected. A biting slider is slidably connected to the surface of the first telescopic frame. A protection frame is fixedly connected to the surface of the photovoltaic panel. The biting sliders are symmetrically arranged on the surface of the protection frame. The biting slider is rotatably connected to the protection frame through a first bearing. The biting slider and the protection frame are both slidably connected.

[0012] Further, a second hook body is fixedly connected to the surface of the protection frame. A first hook body is fixedly connected in a first groove opened on the surface of the protection frame. The first hook body is fixedly connected to the surface of the second support frame.

[0013] Further, a second connection block is hinged to the surface of the first connection block. A first folding frame is fixedly connected to the bottom surface of the second connection block. A first adjustment groove is opened on the surface of the first folding frame. A second adjustment groove is opened on the surface of the first support frame. A third telescopic frame is hinged to the surface of the first folding frame. A fourth telescopic frame is slidably connected to the surface of the third telescopic frame. Extension rods are symmetrically arranged inside the second support frame. The extension rods are slidably connected to the second support frame through a first rectangular sliding groove opened on the surface of the second support frame. Connection heads are fixedly connected to the ends of the extension rods. A plug block is fixedly connected inside the connection head.

[0014] Further, ball head rods are fixedly connected to the ends of the output shafts of the electric control push rods. Ball socket seats are arranged on the surfaces of the ball head rods. Two of the ball socket seats are fixedly connected to the first support frame, and the other two ball socket seats are fixedly connected to the connection heads correspondingly. The electric control push rods below the first support frame are installed on the surfaces of the corresponding support seats. Support blocks are fixedly connected to the bottoms of the electric control push rods below the connection heads. Support telescopic rods are arranged on the surfaces of the support blocks. The support telescopic rods are installed in first reserved grooves formed on the surfaces of the corresponding support seats. Two ends of the support telescopic rods are fixedly connected to the support blocks and the support seats respectively.

[0015] Further, first round rods are fixedly connected to the interiors of the U-shaped parts of the support seats. Rotation connection holes are formed on the surfaces of the casters. The first round rods are rotationally connected to the interiors of the rotation connection holes through second bearings. Support sliding grooves are symmetrically formed on the surfaces of the support seats. Round hole rectangular blocks are symmetrically fixedly connected to the surfaces of the support seats. Limit rods are slidably connected to the interiors of the round hole rectangular blocks. The limit rods are slidably connected to the support seats through the support sliding grooves. Two limit holes are formed on the surfaces of the casters. The support sliding grooves are inserted into the interiors of one of the limit holes. Positioning baffles are symmetrically fixedly connected to the surfaces of the support seats.

[0016] Further, T-shaped hollow rods are fixedly connected to the surfaces of the casters. Lidless round boxes are rotationally connected to the surfaces of the T-shaped hollow rods. The lidless round boxes are fixedly connected to the support seats through third bearings. A torsion spring is arranged inside the lidless round boxes. Two ends of the torsion spring are fixedly connected to the lidless round boxes and the T-shaped hollow rods respectively.

[0017] Further, a handle is arranged on the surface of the support seat. Connecting rods are symmetrically arranged on the surface of the handle. One ends of the connecting rods far away from the handle are hinged to the corresponding limit rods.

[0018] Further, two box doors are installed on the surface of the storage box. Four guiding grooves are formed on the inner bottom surface of the storage box. Hoisting hole columns are fixedly connected to the positions near the four corners of the upper surface of the storage box. Slots are formed at the positions corresponding to the hoisting hole columns on the bottom surface of the storage box.

[0019] Further, a restraint frame is fixedly connected to the surface of the vehicle body of the carrier vehicle. A number of conveying rollers are equidistantly installed inside the restraint frame.

[0020] The above scheme of the present invention has at least the following beneficial effects:

[0021] In the above solution of the present invention, through the modular design of the solar collection unit, the photovoltaic panels can be quickly stacked and stored inside the protective carriage, facilitating transportation; through the cooperation of the first telescopic frame, the second telescopic frame, the placement slot, the first adjustment slot, the second adjustment slot, the third telescopic frame and the fourth telescopic frame, the overall deployment area of the photovoltaic panels is adjusted to meet the requirements of different scenarios. At the same time, through the folding method, the whole is easy to store; through the cooperation between the electric control push rod, the ball head rod, the ball socket seat, the support block and the support telescopic rod, the angle of the photovoltaic panel can be adjusted adaptively, making the normal direction of the upper surface of the photovoltaic panel close to the sunlight direction. Through the hook connection design of the first hook body and the second hook body, the photovoltaic panel can be quickly adjusted from the vertical state convenient for storage to the horizontal state convenient for lighting, enhancing stability while facilitating its rapid deployment and storage; through the cooperation of the T-shaped hollow rod, the lidless round box and the torsion spring, the angle of the auxiliary caster wheel body is automatically adjusted, reducing manual operation; through the cooperation of the first connecting block, the second connecting block and the first folding frame, multi-angle adjustment of the photovoltaic panel is supported to adapt to complex terrains. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram provided by the present invention.

[0023] Figure 2 is the installation schematic diagram of the hoisting hole column in the present invention.

[0024] Figure 3 is the schematic diagram of the slot in the present invention.

[0025] Figure 4 is the schematic diagram of the guide groove in the present invention.

[0026] Figure 5 is the schematic diagram of the positioning baffle in the present invention.

[0027] Figure 6 is the schematic diagram of the torsion spring in the present invention.

[0028] Figure 7 is the schematic diagram of the second hook body in the present invention.

[0029] Figure 8 is the unfolded schematic diagram of the third telescopic frame in the present invention.

[0030] Figure 9 is the schematic diagram of the engaging slider in the present invention.

[0031] Figure 10 is the schematic diagram of the first telescopic frame in the present invention.

[0032] Figure 11 is the schematic diagram of the bottom connecting block in the present invention.

[0033] Figure 12is the present invention Figure 7 The enlarged view of location A in the present invention.

[0034] Figure 13 is the present invention Figure 4 The enlarged view of location B in the present invention.

[0035] Figure 14 is the schematic diagram of the occluding slider in the present invention.

[0036] In the figure: 101, carrier vehicle; 102, protective carriage; 103, integrated box; 104, crane;

[0037] 201, storage box; 202, box door; 203, guide groove;

[0038] 301, first support frame; 302, first telescopic frame; 303, second telescopic frame; 304, second support frame; 305, first folding frame; 306, third telescopic frame; 307, fourth telescopic frame; 308, extension rod; 309, connecting head; 310, first connecting block; 311, second connecting block; 312, bottom connecting block; 314, plug block; 319, first adjustment groove; 320, pick-up and placement groove; 321, second adjustment groove;

[0039] 401, photovoltaic panel; 402, protective frame; 403, occluding slider; 404, first hook body; 405, second hook body;

[0040] 501, support base; 502, caster; 503, rotating connection hole; 504, limit hole; 505, first round rod; 506, lidless round box; 507, torsion spring; 508, T-shaped hollow rod; 509, support chute; 510, handle; 511, connecting rod; 512, limit rod; 513, round hole rectangular block; 514, positioning baffle; 515, ball socket seat; 516, ball head rod; 517, electric control push rod; 518, support block; 519, limit telescopic rod; 520, first threaded hole; 521, second threaded hole; 522, support telescopic rod;

[0041] 601, restraint frame; 602, conveyor roller; 603, hoisting hole column; 604, slot. Detailed implementation manners

[0042] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0043] As Figures 1 to 14As shown in the figure, an embodiment of the present invention provides a modular mobile device for a photovoltaic energy storage off-grid system, including a carrier vehicle 101. A protective carriage 102 is fixedly connected to the surface of the carrier vehicle 101. An integrated box 103 and a crane 104 are installed inside the protective carriage 102, including:

[0044] A number of storage boxes 201 are arranged inside the protective carriage 102. A first support frame 301 and a second support frame 304 are arranged inside each storage box 201. Two groups of first telescopic frames 302 and second telescopic frames 303 are symmetrically arranged between the first support frame 301 and the second support frame 304. The first telescopic frame 302 is slidably connected to the second telescopic frame 303. A number of photovoltaic panels 401 are arranged in parallel between the two groups of first telescopic frames 302 and second telescopic frames 303. By rotating the photovoltaic panels 401 to a vertical state and contracting the first telescopic frames 302 and the second telescopic frames 303, the photovoltaic panels 401 are easy to be stored. By rotating the photovoltaic panels 401 to a horizontal state and adaptively extending the first telescopic frames 302 and the second telescopic frames 303, the photovoltaic panels 401 are easy to be irradiated by sunlight;

[0045] A placement slot 320 is formed on the surface of the second telescopic frame 303. The number of photovoltaic panels 401 between the two groups of first telescopic frames 302 and second telescopic frames 303 can be adjusted through the placement slot 320;

[0046] Support seats 501 are arranged below both the first support frame 301 and the second support frame 304. A limit telescopic rod 519 is arranged between the two support seats 501. The two ends of the limit telescopic rod 519 are fixedly connected to the two support seats 501 respectively. Casters 502 are symmetrically arranged on the surfaces of the support seats 501. By rotating and adjusting the relative positions of the casters 502 and the support seats 501, the first support frame 301 and the second support frame 304 above the support seats 501 are easy to move;

[0047] A number of electric control push rods 517 are arranged below both the first support frame 301 and the second support frame 304. By adjusting the telescopic length of the electric control push rods 517, the normal direction of the upper surface of the photovoltaic panels 401 approaches the irradiation direction of sunlight.

[0048] In an embodiment of the present invention, according to the usage requirements of the device user, a suitable inverter, energy storage battery, controller, busbar box, power distribution cabinet, and cables of corresponding specification lengths are assembled inside the integrated box 103. The corresponding number of storage boxes 201 are loaded, and the driving carrier vehicle 101 is used to move towards the destination. After arriving at the destination, by opening the carriage door of the protective carriage 102 and through the hoisting of the crane 104, the storage box 201 is placed at the required position. The first support frame 301, the first telescopic frame 302, the second telescopic frame 303, and the second support frame 304 inside the storage box 201 are moved out of the storage box 201, and by adjusting the length between the first telescopic frame 302 and the second telescopic frame 303, the photovoltaic panel 401 is rotated from the vertical state to a state parallel to the first telescopic frame 302, so as to enable the photovoltaic panel 401 to enter the solar energy collection state as soon as possible;

[0049] The number of photovoltaic panels 401 between the first support frame 301 and the second support frame 304 is increased or decreased through the pick-and-place slot 320, or one or several of the photovoltaic panels 401 between the first support frame 301 and the second support frame 304 are replaced;

[0050] When it is necessary to move the first support frame 301 and the second support frame 304, the two casters 502 inside the support base 501 are rotated so that the wheel bodies of the casters 502 rotate downward. When it is not necessary to move the first support frame 301 and the second support frame 304, the wheel bodies of the casters 502 are rotated upward to maintain the stable placement of the first support frame 301 and the second support frame 304;

[0051] When the photovoltaic panel 401 is performing solar energy collection work, by adjusting the height of the electric control push rod 517, the solar energy collection efficiency of the photovoltaic panel 401 is improved.

[0052] It should be noted that: The usage methods and working principles of the photovoltaic panel 401, inverter, energy storage battery, controller, busbar box, and power distribution cabinet are well-known in the prior art and will not be elaborated in detail here.

[0053] The upper surface of the first support frame 301 is symmetrically and fixedly connected with first connection blocks 310. The bottom surface of the first connection blocks 310 is fixedly connected with bottom connection blocks 312. The bottom connection blocks 312 are fixedly connected with the first telescopic frame 302. The second support frame 304 and the second telescopic frame 303 are both fixedly connected. The surface of the first telescopic frame 302 is slidably connected with engaging sliders 403. The surface of the photovoltaic panel 401 is fixedly connected with a protective frame 402. The engaging sliders 403 are symmetrically arranged on the surface of the protective frame 402. The engaging sliders 403 are rotationally connected to the protective frame 402 through first bearings. The engaging sliders 403 and the protective frame 402 are both slidably connected.

[0054] In an embodiment of the present invention, the first telescopic frame 302 is slidably connected to the inside of the engaging slider 403, so that the protective frame 402 between the two first telescopic frames 302 is slidably connected to the two first telescopic frames 302 through the two engaging sliders 403. Furthermore, the relative positions between the protective frame 402, the first telescopic frame 302, and the second telescopic frame 303 can be adjusted, facilitating the rapid laying of the photovoltaic panel 401.

[0055] The surface of the protective frame 402 is fixedly connected with a second hook 405. A first hook 404 is fixedly connected to the first groove formed on the surface of the protective frame 402. The surface of the second support frame 304 is fixedly connected with a first hook 404.

[0056] In an embodiment of the present invention, during the process of laying the photovoltaic panel 401, first, rotate the protective frame 402 closest to the surface of the second support frame 304 to a position where the second hook 405 on the surface is slightly higher than the first hook 404 on the surface of the second support frame 304. Slide the protective frame 402 closest to the surface of the second support frame 304 towards the first hook 404 on the surface of the second support frame 304, and hook the second hook 405 on the surface of the protective frame 402 closest to the surface of the second support frame 304 to the first hook 404 on the surface of the second support frame 304. At this time, the protective frame 402 closest to the surface of the second support frame 304 is supported by the two engaging sliders 403 on its surface and the first hook 404 on the surface of the second support frame 304, and remains in a horizontal position in the extending direction of the first telescopic frame 302.

[0057] According to the above steps, the protective frames 402 between the second support frame 304 and the first support frame 301 are sequentially engaged through the engagement between the adjacent second hooks 405 and first hooks 404, thus quickly completing the deployment of the photovoltaic panel 401. After the first hook 404 and the second hook 405 are engaged, a binding force is generated between the adjacent protective frames 402 along the direction perpendicular to the extending direction of the first telescopic frame 302, increasing the stability of the photovoltaic panel 401 during operation.

[0058] In order to prevent the force between adjacent protective frames 402 from being too large when they come into contact with each other, through the arc surface of the second hook 405, when the contact force between two adjacent protective frames 402 is too large, the engagement between the corresponding second hook 405 and first hook 404 will be released.

[0059] The surface of the first connection block 310 is hinged with a second connection block 311. The bottom surface of the second connection block 311 is fixedly connected with a first folding frame 305. A first adjustment groove 319 is formed on the surface of the first folding frame 305. A second adjustment groove 321 is formed on the surface of the first support frame 301. The surface of the first folding frame 305 is hinged with a third telescopic frame 306. The surface of the third telescopic frame 306 is slidably connected with a fourth telescopic frame 307. Extension rods 308 are symmetrically arranged inside the second support frame 304. The extension rods 308 are slidably connected with the second support frame 304 through first rectangular sliding grooves formed on the surface of the second support frame 304. Connection heads 309 are fixedly connected to the ends of the extension rods 308. Plug blocks 314 are fixedly connected inside the connection heads 309.

[0060] In the embodiment of the present invention, by rotating the second connection block 311 around the first connection block 310 until the extending direction of the first folding frame 305 is parallel to the extending direction of the first support frame 301 and the first adjustment groove 319 and the second adjustment groove 321 are aligned, then rotating the third telescopic frame 306 on the surface of the first folding frame 305 to make the extending direction of the third telescopic frame 306 perpendicular to the extending direction of the first folding frame 305. By moving the extension rods 308 in a direction away from the inside of the second support frame 304, the plug blocks 314 inside the connection heads 309 are aligned with the corresponding fourth telescopic frames 307. By sliding the fourth telescopic frames 307 on the surface of the third telescopic frame 306 until the plug blocks 314 are inserted into the inside of the fourth telescopic frames 307 and the second threaded holes 521 on the surfaces of the plug blocks 314 are aligned with the first threaded holes 520 on the surfaces of the fourth telescopic frames 307. By simultaneously threadedly connecting corresponding specifications of bolts with the second threaded holes 521 and the first threaded holes 520, and keeping the length of the limit telescopic rod 519 unchanged through the locking mechanism of the limit telescopic rod 519. At this time, the support frame composed of the first support frame 301, the first folding frame 305, the first telescopic frame 302, the second telescopic frame 303, the second support frame 304, the fourth telescopic frame 307 and the third telescopic frame 306 is kept fixed so that the photovoltaic panel 401 on its surface can maintain a stable working state;

[0061] When the first folding frame 305, the third telescopic frame 306, and the fourth telescopic frame 307 are in the unfolded state, by sliding the protective frame body 402 between the two first telescopic frames 302, the two engaging sliders 403 on the surface of the protective frame body 402 slide into the interior of the second adjustment groove 321, and the two engaging sliders 403 slide from the interior of the second adjustment groove 321 into the interior of the first adjustment groove 319 until the protective frame body 402 moves within the first adjustment groove 319 to a position between one of the first telescopic frames 302 and the third telescopic frame 306. By making the two engaging sliders 403 on the surface of the protective frame body 402 slide from the interior of the first adjustment groove 319 to the surfaces of the corresponding third telescopic frame 306 and the first telescopic frame 302, the transfer of the protective frame body 402 is completed. When several protective frame bodies 402 located between the first telescopic frame 302 and the third telescopic frame 306 are hooked to each other through the first hook body 404 and the corresponding second hook body 405, the two protective frame bodies 402 located on the outside are only supported by the binding force of a set of first hook body 404 and second hook body 405 in the direction perpendicular to the extension direction of the first telescopic frame 302;

[0062] When storing the photovoltaic panel 401, the photovoltaic panel 401 can be rotated to the vertical state, and all the photovoltaic panels 401 are transferred between the two first telescopic frames 302. By making the third telescopic frame 306 and the fourth telescopic frame 307 contract to a shorter state, and by making the third telescopic frame 306 rotate around the first folding frame 305 until the third telescopic frame 306 and the fourth telescopic frame 307 are stored in the interior of the first adjustment groove 319.

[0063] The ends of the output shafts of the electric control push rods 517 are fixedly connected with ball head rods 516. The surface of the ball head rod 516 is provided with ball socket seats 515. Two of the ball socket seats 515 are fixedly connected with the first support frame 301, and the other two ball socket seats 515 are fixedly connected with the connection head 309 correspondingly. The electric control push rods 517 below the first support frame 301 are installed on the surface of the corresponding support seat 501. The bottoms of the electric control push rods 517 below the connection head 309 are fixedly connected with support blocks 518. The surface of the support block 518 is provided with support telescopic rods 522. The support telescopic rods 522 are installed in the first reserved grooves opened on the surface of the corresponding support seat 501. The two ends of the support telescopic rods 522 are fixedly connected with the support block 518 and the support seat 501 respectively.

[0064] In the embodiment of the present invention, when adjusting the angle of the photovoltaic panel 401, the height changes of the four electric control push rods 517 can be adjusted to make the normal direction of the upper surface of the photovoltaic panel 401 approach the irradiation angle of the sunlight, thereby improving the collection efficiency of the photovoltaic panel 401 for solar energy. The telescopic movement of the support telescopic rods 522 enables the electric control push rods 517 on the support block 518 to move following the elongation of the extension rod 308 driving the connection head 309.

[0065] Inside the U-shaped part of the support base 501, a first round rod 505 is fixedly connected. A rotation connection hole 503 is formed on the surface of the caster 502. The first round rod 505 is rotationally connected inside the rotation connection hole 503 through a second bearing. Support sliding grooves 509 are symmetrically formed on the surface of the support base 501. Circular hole rectangular blocks 513 are symmetrically and fixedly connected to the surface of the support base 501. A limiting rod 512 is slidably connected inside the circular hole rectangular block 513. The limiting rod 512 is slidably connected to the support base 501 through the support sliding groove 509. Two limiting holes 504 are formed on the surface of the caster 502. The support sliding groove 509 is inserted into one of the limiting holes 504. Positioning baffle plates 514 are symmetrically and fixedly connected to the surface of the support base 501.

[0066] In the embodiment of the present invention, when it is necessary to move the first support frame 301 and the second support frame 304, by lifting the handle 510 upward until the support base 501 corresponding to the handle 510 leaves the ground to an appropriate height, the upward movement of the handle 510 drives the two connecting rods 511 to rotate. The rotation of the connecting rods 511 causes the limiting rods 512 in the two circular hole rectangular blocks 513 to move towards each other until the limiting rods 512 leave the inside of the limiting holes 504 formed on the surface of the caster 502, so that the caster 502 rotates until the wheel body faces downward, and the support base 501 that leaves the ground is lowered until the wheel body of the caster 502 touches the ground. At this time, move the handle 510 towards the direction close to the corresponding support base 501 until the limiting rod 512 is inserted into the inside of the other limiting hole 504. In the same way, rotate the caster 502 on the surface of the other support base 501 until the wheel body faces downward. The caster 502 is used to push the first support frame 301, the second support frame 304 and several photovoltaic panels 401 therebetween to move. The setting of the positioning baffle plate 514 makes the maximum rotation angle of the caster 502 180 degrees, which is convenient for aligning the limiting rod 512 with the support sliding groove 509 when the caster 502 rotates until it abuts against the positioning baffle plate 514.

[0067] A T-shaped hollow rod 508 is fixedly connected to the surface of the caster 502. An uncovered round box 506 is rotationally connected to the surface of the T-shaped hollow rod 508. The uncovered round box 506 is fixedly connected to the support base 501 through a third bearing. A torsion spring 507 is arranged inside the uncovered round box 506. Two ends of the torsion spring 507 are respectively fixedly connected to the uncovered round box 506 and the T-shaped hollow rod 508.

[0068] A handle 510 is arranged on the surface of the support base 501. Connecting rods 511 are symmetrically arranged on the surface of the handle 510. One end of the connecting rod 511 away from the handle 510 is hinged to the corresponding limiting rod 512.

[0069] In an embodiment of the present invention, before rotating the caster 502, by rotating the lidless round box 506, the elastic potential energy of the torsion spring 507 is increased. Thus, after the limiting rod 512 leaves the inside of the limiting hole 504, under the action of the elastic potential energy of the torsion spring 507, the caster 502 continues to abut against the positioning baffle 514 or rotates 180 degrees and then tightly abuts against the positioning baffle 514 again. In this process, after the staff lifts the corresponding support base 501 upward through the handle 510, the caster 502 directly rotates to the required position, reducing the operation of the staff to adjust the angle of the caster 502. And when the lower handle 510 lowers the support base 501, the included angle between the caster 502 and the ground is an acute angle. Therefore, the gravity of the handle 510 will make the caster 502 abut against the positioning baffle 514 more tightly, which is conducive to the limiting rod 512 being inserted back into the corresponding limiting hole 504 inside.

[0070] Two cabinet doors 202 are installed on the surface of the storage box 201. Four guiding grooves 203 are opened on the inner bottom surface of the storage box 201. Hoisting hole columns 603 are fixedly connected to the upper surface of the storage box 201 near the four corner positions. Slots 604 are opened at positions corresponding to the hoisting hole columns 603 on the bottom surface of the storage box 201.

[0071] In an embodiment of the present invention, when it is necessary to store the first support frame 301, the second support frame 304 and several photovoltaic panels 401 therebetween, by making the lengths of the second telescopic frame 303 and the first telescopic frame 302 contract to the minimum state, making the third telescopic frame 306 and the fourth telescopic frame 307 contract to the shortest state, and rotating the third telescopic frame 306 and the fourth telescopic frame 307 into the corresponding first adjustment groove 319 for storage, and rotating the first folding frame 305 so that the first folding frame 305 rotates to fit with the corresponding second telescopic frame 303, removing the bolt inside the plug block 314, and making the extension rod 308 slide into the second support frame 304 until the connection head 309 abuts against the second support frame 304. By adjusting the caster 502 to the state where the wheel faces downward and is fixed, by making the corresponding caster 502 enter the guiding groove 203 inside, pushing the first support frame 301, the first telescopic frame 302 and several photovoltaic panels 401 therebetween into the inside of the storage box 201, and closing the cabinet door 202 on the surface of the storage box 201. Through the cooperation of the hoisting hole column 603, the rope and the crane 104, hoisting the storage box 201 into the inside of the protection carriage 102, and in a stacking manner, one storage box 201 can be inserted into the corresponding hoisting hole column 603 through the slot 604, so that the storage box 201 is constrained in the vehicle body extension direction, facilitating the storage box 201 to remain stable during the movement following the carrier vehicle 101.

[0072] The surface of the body of the carrier vehicle 101 is fixedly connected with a restraint frame 601, and a number of conveying rollers 602 are equidistantly installed inside the restraint frame 601.

[0073] In the embodiment of the present invention, by placing the storage box 201 inside the restraint frame 601, the storage box 201 moves along the inner wall of the restraint frame 601 inside the restraint frame 601. Through the arrangement of the conveying rollers 602, the storage box 201 is convenient to slide inside the restraint frame 601, and thus it is convenient for the crane 104 to hoist the storage box 201.

[0074] It should be noted that: the ball socket connection is between the ball socket seat 515 and the ball head rod 516, which is convenient for the ball socket seat 515 to freely rotate within a certain range inside the ball head rod 516;

[0075] The cross-section of the first adjustment groove 319 in the direction perpendicular to the extension direction of the first folding frame 305 is the same as the cross-section of the second adjustment groove 321 in the direction perpendicular to the extension direction of the first support frame 301, which is convenient for the engaging slider 403 to transfer inside the first support frame 301 and the first folding frame 305 through the first adjustment groove 319 and the second adjustment groove 321;

[0076] The upper surface of the second telescopic frame 303 is provided with an avoidance groove corresponding to the shape of the bottom connection block 312, so that the overall length of the first telescopic frame 302 and the second telescopic frame 303 can be further reduced, thereby making the distance between the first support frame 301 and the second support frame 304 closer, and further facilitating the storage of the first support frame 301, the second support frame 304 and a number of photovoltaic panels 401 therebetween;

[0077] The limit telescopic rod 519 has a locking structure, which is the prior art and will not be elaborated in detail here. It is used to keep the distance between the two support seats 501 unchanged, which is beneficial to maintaining the stability of the working state of the photovoltaic panel 401;

[0078] The shape of the hoisting hole column 603 is columnar, and through holes are provided on its surface, which is convenient for the rope to pass through. The hoisting operation of the storage box 201 by the crane 104 through the cooperation of the rope and the hoisting hole column 603 is well known in the prior art and will not be elaborated in detail here;

[0079] The box door 202 is provided with a locking mechanism, and an elastic pad is arranged on the surface facing the inside of the storage box 201 to reduce the rigid collision between the first support frame 301 and the second support frame 304 and the box door 202. This is well known in the prior art and will not be elaborated in detail here;

[0080] The friction between the lidless round box 506 and the support seat 501 is relatively large, and the maximum elastic potential energy of the torsion spring 507 is less than the friction between the lidless round box 506 and the support seat 501, so as to facilitate the clockwise or counterclockwise rotation of the casters 502.

[0081] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A modular mobile device for off-grid photovoltaic energy storage system, comprising a carrier, a protective compartment fixedly connected to the surface of the carrier, an integrated box and a crane installed inside the protective compartment, characterized in that: include: A plurality of storage boxes are arranged inside the protection compartment, and a first support frame and a second support frame are arranged inside each of the storage boxes. Two groups of first telescopic frames and second telescopic frames are symmetrically arranged between the first support frame and the second support frame, and the first telescopic frame is slidably connected to the second telescopic frame. A plurality of photovoltaic panels are arranged in parallel between the two groups of the first telescopic frames and the second telescopic frames. By rotating the photovoltaic panels to a vertical state and contracting the first telescopic frames and the second telescopic frames, the photovoltaic panels are easy to be stored. By rotating the photovoltaic panels to a horizontal state and adaptively extending the first telescopic frames and the second telescopic frames, the photovoltaic panels are easy to be exposed to sunlight. A pick-up and placement groove is provided on the surface of the second telescopic frame, and the number of photovoltaic panels between the two groups of the first telescopic frame and the second telescopic frame is adjusted through the pick-up and placement groove; A support seat is provided below each of the first support frame and the second support frame, a limited telescopic rod is provided between the two support frames, two ends of the limited telescopic rod are respectively fixedly connected to the two support frames, and casters are symmetrically provided on the surfaces of the support frames, and the relative positions of the casters and the support frames are adjusted by rotating so that the first support frame and the second support frame above the support frames are easy to move; A plurality of electric push rods are disposed below the first support frame and the second support frame, and the normal direction on the upper surface of the photovoltaic panel is made close to the irradiation direction of sunlight by adjusting the telescopic length of the electric push rods; The upper surface of the first support frame is symmetrically fixedly connected with a first connecting block, the bottom surface of the first connecting block is fixedly connected with a bottom connecting block, the bottom connecting block is fixedly connected to the first telescopic frame, the second support frame is fixedly connected to the second telescopic frame, the surface of the first telescopic frame is slidably connected with an engaging slider, the surface of the photovoltaic panel is fixedly connected with a protective frame, the engaging slider is symmetrically arranged on the surface of the protective frame, the engaging slider is rotatably connected to the protective frame through a first bearing, and the engaging slider and the protective frame are both slidably connected; The surface of the protection frame is fixedly connected with a second hook, the first groove on the surface of the protection frame is fixedly connected with a first hook, and the surface of the second support frame is fixedly connected with the first hook; A second connecting block is hingedly connected to the surface of the first connecting block, a first folding frame is fixedly connected to the bottom surface of the second connecting block, a first adjusting groove is provided on the surface of the first folding frame, a second adjusting groove is provided on the surface of the first supporting frame, a third telescopic frame is hingedly connected to the surface of the first folding frame, a fourth telescopic frame is slidably connected to the surface of the third telescopic frame, an extension rod is symmetrically arranged inside the second supporting frame, the extension rod is slidably connected to the second supporting frame through a first rectangular sliding groove provided on the surface of the second supporting frame, the ends of the extension rods are fixedly connected to connecting heads, and a plug block is fixedly connected to the inside of the connecting head; The ends of the output shaft of the electric control push rod are fixedly connected with a ball head rod, and the surface of the ball head rod is provided with a ball socket, two of the ball sockets are fixedly connected to the first support frame, and the other two ball sockets are fixedly connected to the connecting head accordingly. The electric control push rod below the first support frame is installed on the corresponding support seat surface, and the bottom of the electric control push rod below the connecting head is fixedly connected with a support block, and the surface of the support block is provided with a support telescopic rod, and the support telescopic rod is installed in a first reserved groove opened on the surface of the corresponding support seat, and the two ends of the support telescopic rod are fixedly connected to the support block and the support seat respectively.

2. According to claim 1, the modular mobile device for off-grid photovoltaic energy storage system is characterized in that: A first round rod is fixedly connected to the inside of the U-shaped part of the support seat, a rotating connection hole is provided on the surface of the caster, the first round rod is rotatably connected to the inside of the rotating connection hole through a second bearing, support grooves are symmetrically provided on the surface of the support seat, a round hole rectangular block is symmetrically fixedly connected to the surface of the support seat, a limiting rod is slidably connected to the inside of the round hole rectangular block, and the limiting rod is slidably connected to the support seat through the supporting groove, two limiting holes are provided on the surface of the caster, the supporting groove is inserted into the inside of one of the limiting holes, and a positioning baffle is symmetrically fixedly connected to the surface of the support seat.

3. According to claim 2, the modular mobile device for off-grid photovoltaic energy storage system is characterized in that: A T-shaped hollow rod is fixedly connected to the surface of the caster, and a coverless round box is rotatably connected to the surface of the T-shaped hollow rod. The coverless round box is fixedly connected to the support seat via a third bearing, and a torsion spring is arranged inside the coverless round box, and two ends of the torsion spring are respectively fixedly connected to the coverless round box and the T-shaped hollow rod.

4. The modular mobile device for off-grid photovoltaic energy storage system according to claim 3, characterized in that: A handle is arranged on the surface of the support seat, and connecting rods are symmetrically arranged on the surface of the handle. One end of the connecting rod away from the handle is hinged to the corresponding limiting rod.

5. The modular mobile device for off-grid photovoltaic energy storage system according to claim 4, characterized in that: Two box doors are installed on the surface of the storage box, four guide grooves are opened on the inner bottom surface of the storage box, and hanging hole columns are fixedly connected near the four corners of the upper surface of the storage box. Slots are opened at the bottom surface of the storage box corresponding to the hanging hole columns.

6. The modular mobile device for off-grid photovoltaic energy storage system according to claim 5, characterized in that: A restraining frame is fixedly connected to the surface of the vehicle body, and a plurality of conveying rollers are equidistantly installed inside the restraining frame.

Images