Photovoltaic panel connection structure

Abstract

The present invention relates to the technical field of photovoltaic panel connection devices, and specifically to a connection structure for quick connection of photovoltaic panels, including a support frame, a photovoltaic panel is arranged above the support frame, and a plurality of connection boxes are fixedly installed on the upper end of the support frame by bolts, and the connection boxes are respectively arranged at the four corners below the photovoltaic panel, and a plurality of pins are rotatably installed on the bottom end of the photovoltaic panel, and the pins respectively correspond to the connection boxes. An upper sealing cover is fixedly installed on the upper end of the connection box, and a locking device is arranged inside the connection box. The present invention fixes the photovoltaic panel by passing the pin and the locking rod through the upper sealing cover and the bottom ring respectively, and then bending the locking rod. After the locking rod is bent, a firm mechanical lock is formed with the bottom ring, ensuring that the photovoltaic panel can be stably fixed during operation and effectively responding to the influence of external environment such as wind load or vibration. No complicated tools and high technical requirements are required, and the installation can be completed by a simple bending action.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel connection devices, in particular to a connection structure for quick connection of photovoltaic panels. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. Photovoltaic panels absorb sunlight and convert solar radiation energy directly or indirectly into electrical energy through the photoelectric effect or photochemical effect. Photovoltaic panels need to be equipped with a dedicated support structure that can provide them with stable support during long-term use.

[0003] After searching, it was found that the prior art publication number is CN119276195A, which discloses an embedded photovoltaic panel quick installation structure, including a mounting plate and a photovoltaic panel outer plate, the internal sliding of the mounting plate is provided with a long pin, and the side of the long pin is fixedly connected to an external rod; the internal of the photovoltaic panel outer plate is fixedly connected to the photovoltaic panel body, and the photovoltaic panel outer plate is snap-fitted to the mounting plate; it also includes a push plate, which is rotatably arranged inside the mounting plate. When the photovoltaic panel outer plate needs to be docked during use, the photovoltaic panel outer plate is inserted into the embedding groove. At this time, the photovoltaic panel outer plate will push the long pin to move in the direction of squeezing the connecting spring. When the photovoltaic panel outer plate contacts the inner wall of the embedding groove, the long pin and the card slot are in the same horizontal direction. At this time, the long pin enters the card slot under the action of the connecting spring, that is, the photovoltaic panel outer plate has been docked to the mounting plate.

[0004] Therefore, based on the above search and in combination with existing technologies, when the above scheme is used, as the temperature rises, the pin material will expand, resulting in a decrease in the tightness of the pin in the fixing hole, which may cause the pin to loosen or the connection to be loose. At the same time, when the temperature drops, the pin will shrink, which may cause the fixed connection to become unstable and increase the risk of the photovoltaic panel falling off. In addition, the thermal expansion and contraction caused by the temperature difference will generate large thermal stress on the pin and its connection parts. Long-term repeated temperature changes may cause material fatigue, deformation or cracks, reducing the service life of the pin. For this reason, we propose a connection structure for quick connection of photovoltaic panels. Summary of the Invention

[0005] The object of the present invention is to provide a connection structure for quick connection of photovoltaic panels to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a connection structure for quick connection of photovoltaic panels, comprising a support frame, a photovoltaic panel is arranged above the support frame, a plurality of connection boxes are fixedly installed on the upper end of the support frame by bolts, and the connection boxes are respectively arranged at the four corners below the photovoltaic panel, a plurality of latches are rotatably installed on the bottom end of the photovoltaic panel, the latches respectively correspond to the connection boxes, an upper sealing cover is fixedly installed on the upper end of the connection box, a locking device is provided inside the connection box for facilitating quick fixation of the latch, a heating tube is fixedly installed on the inner right end of the connection box by a clamp, a bottom ring is rotatably installed on the bottom end of the connection box, a locking rod is rotatably installed on the bottom end of the latch through a rotating shaft, then after the latch and the locking rod are respectively passed through the upper sealing cover and the bottom ring, the locking rod is bent, thereby achieving quick fixation of the photovoltaic panel.

[0007] As a further solution of the present invention, the locking device includes an outer support ring, which is fixedly installed at the lower end of the upper sealing cover. A plurality of inner support plates are provided below the upper sealing cover. The inner support plates are arranged in a ring shape, and the outer surface of the inner support plate is provided with an annular bag. The interior of the annular bag is filled with fine sand. When the annular bag is squeezed, the gap between the fine sand inside becomes smaller, causing the annular bag to harden as a whole, and then the outer surface of the inner support plate is squeezed.

[0008] As a further solution of the present invention, a driving cylinder is fixedly installed on the upper end of the bottom ring, a threaded ring is provided on the inner end threaded sleeve of the driving cylinder, and a plurality of push plates are fixedly installed on the upper end of the threaded ring, a plurality of extrusion blocks are provided under the annular sac, and the extrusion blocks are fixedly connected to the threaded ring.

[0009] As a further solution of the present invention, a passive ring is rotatably installed at the inner end of the connecting box, and the passive ring and the annular sac are on the same axis. A plurality of card plates are slidably installed on the bottom end of the outer support ring, and the card plates are arranged in a ring shape, and the card plates are located inside the passive ring. A moving rod is passed through the left end of the heated cylinder, and a locking plate is fixedly installed on the end of the moving rod away from the heated cylinder. A force ring is sleeved on the outer surface of the annular sac.

[0010] As a further solution of the present invention, a cross rod is rotatably installed on one end of the locking plate away from the moving rod, and two extension rods are rotatably installed on one end of the cross rod away from the moving rod, and the two moving rods are rotatably connected to the front and rear ends of the force ring respectively. When the moving rod moves toward the right and pulls the cross rod to move through the locking plate, the cross rod will pull the two end points of the right end of the force ring together during the movement of the cross rod.

[0011] As a further solution of the present invention, two arc-shaped holes are opened at the upper end of the connection box, and a locking tube is fixedly installed on the right end of the bottom ring. The upper end of the locking tube is passed through the arc-shaped hole close to the passive ring, and a synchronization rod is passed through the arc-shaped hole away from the passive ring. The matching design of the locking tube and the arc-shaped hole makes the connection between the connection box and the bottom ring tighter, ensuring that the photovoltaic panel has good stability during operation and avoiding loosening or displacement.

[0012] As a further solution of the present invention, an unlocking column is installed at the upper end of the synchronization rod, and an unlocking column is fixedly installed at the upper end of the moving rod. A bayonet is provided at the rear end of the lock plate, and the unlocking column is engaged in the bayonet, so that the current moving rod cannot move. The matching design of the unlocking column and the bayonet effectively limits the movement of the moving rod through physical engagement, thereby ensuring the stability of the locked state and avoiding loose connection due to accidental vibration or external force interference.

[0013] As a further solution of the present invention, a center rod is passed through the inner end of the lock tube, a cone block is provided below the center rod, the upper end of the cone block is passed through the interior of the lock tube, and a plurality of rectangular holes are opened on the outer surface of the lock tube, each of which is provided with a force plate. The design of the cone block transmits axial pressure through the center rod. When the cone block enters the interior of the lock tube, it can squeeze the force plate, thereby achieving multi-point distributed uniform locking and further improving the fixing strength.

[0014] As a further solution of the present invention, a passive plug is slidably installed on the inner end of the heated cylinder, the left end of the passive plug is fixedly connected to the right end of the moving rod, the passive plug and the heated cylinder are connected by a reset spring, and an active plug is slidably installed on the inner end of the heated cylinder, and a screw is fixedly installed on the right end of the active plug.

[0015] As a further solution of the present invention, a passive gear is rotatably installed on the inner end of the connecting box, a sleeve is fixedly installed on the left end of the passive gear, and the sleeve is threadedly sleeved on the outer surface of the screw, and a crown gear is rotatably installed on the inner bottom end of the connecting box, and the crown gear is engaged with the passive gear. The meshing design of the passive gear and the crown gear ensures smooth transmission of force during the transmission process. Combined with the threaded cooperation of the screw and the sleeve, it helps to reduce friction, improve the transmission efficiency of the system, and avoid energy loss.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention achieves rapid fixation of the photovoltaic panel by inserting the latch and the locking rod through the upper sealing cover and the bottom ring respectively, and then bending the locking rod. After the locking rod is bent, it forms a firm mechanical lock with the bottom ring, ensuring that the photovoltaic panel can be stably fixed during operation and effectively cope with the influence of external environments such as wind loads or vibrations. No complex tools or high technical requirements are required, and only a simple bending action is required to complete the installation, which is convenient for on-site installation workers.

[0018] 2. The present invention can effectively absorb or release mechanical stress caused by temperature changes by dynamically adjusting the size of the holes around the pin according to the thermal expansion characteristics of the metal, preventing deformation, cracking or damage of connecting parts due to excessive expansion or contraction. It can maintain stability and reliability regardless of whether it is in hot tropical areas or cold areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a connection structure for quick connection of photovoltaic panels;

[0020] Figure 2 This is a structural diagram of the photovoltaic panel detached from the support frame;

[0021] Figure 3 It is a structural diagram of the position relationship between the latch and the connection box;

[0022] Figure 4 It is a schematic diagram of the structure inside the connection box;

[0023] Figure 5 This is a disassembled diagram of the locking device;

[0024] Figure 6 It is a structural diagram of the positional relationship between the annular capsule and the bottom ring;

[0025] Figure 7 It is a structural diagram of the position relationship between the passive ring and the card plate;

[0026] Figure 8 It is a structural diagram of the arc hole in the connection box;

[0027] Figure 9 This is the position relationship diagram of the bottom ring and the lock tube;

[0028] Figure 10 Schematic diagram of the internal structure of the lock tube;

[0029] Figure 11 This is a schematic diagram of the enlarged structure inside the lock tube;

[0030] Figure 12 Schematic diagram of the internal structure of the heating cylinder.

[0031] In the figure: 1. Support frame; 2. Photovoltaic panel; 3. Connection box; 4. Plug;

[0032] 101. Card slot; 102. Locking lever; 103. Lock hole;

[0033] 201. Heating cylinder; 202. Moving rod; 203. Cross rod; 204. Accumulation spring; 205. Arc hole; 206. Return spring; 207. Passive plug; 208. Active plug; 209. Crown gear; 210. Passive gear; 211. Screw;

[0034] 301, upper sealing cover; 302, extrusion block; 303, bottom ring; 304, force ring; 305, inner support plate; 306, outer support ring; 307, passive ring; 308, threaded ring; 309, drive cylinder; 310, clamping plate; 311, annular capsule; 312, collar; 313, rack; 314, locking tube;

[0035] 401. Unlocking column; 402. Locking plate; 403. Synchronizing rod; 404. Driving rod; 405. Limiting plate; 406. Center rod; 407. Force plate; 408. Conical block; 409. Snap spring; 410. Triangular block. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1 - Figure 4A photovoltaic panel quick connection connection structure includes a support frame 1, a photovoltaic panel 2 is arranged above the support frame 1, and a plurality of connection boxes 3 are fixedly installed on the upper end of the support frame 1 by bolts, and the connection boxes 3 are respectively arranged at the four corners below the photovoltaic panel 2, and a plurality of latches 4 are rotatably installed on the bottom end of the photovoltaic panel 2, and the latches 4 correspond to the connection boxes 3 respectively. An upper sealing cover 301 is fixedly welded on the upper end of the connection box 3, and the diameter of the upper sealing cover 301 is larger than the diameter of the latch 4. A locking device is provided inside the connection box 3 to facilitate the quick fixation of the latch 4. The right end of the inner side of the connection box 3 The heating tube 201 is fixedly installed by a clamp. The heating tube 201 and the connecting box 3 are both made of stainless steel, and the outer surface of the connecting box 3 is coated with camouflage paint. The bottom end of the connecting box 3 is rotatably installed with a bottom ring 303, and the bottom end of the pin 4 is rotatably installed with a locking rod 102 through a rotating shaft. The length of the pin 4 is greater than the thickness of the connecting box 3. Then, after the pin 4 and the locking rod 102 are respectively passed through the upper sealing cover 301 and the bottom ring 303, the locking rod 102 is bent, thereby realizing rapid fixation of the photovoltaic panel 2. It is simple and convenient, and avoids tedious steps such as screw fixing.

[0038] The locking device includes an outer support ring 306, which is fixedly installed at the lower end of the upper sealing cover 301. A plurality of inner support plates 305 are provided under the upper sealing cover 301. The inner support plates 305 are arranged in an annular shape, and two adjacent inner support plates 305 are connected by a traction line, and the outer surface of the inner support plate 305 is sleeved with an annular bag 311. The annular bag 311 is made of soft rubber and has good anti-aging and corrosion resistance. It can also withstand high temperatures. The upper half of the annular bag 311 is wrapped by the outer support ring 306 and the lower half is exposed. The interior of the annular bag 311 is filled with fine sand. When the annular bag 311 is squeezed, the gap between the internal fine sand becomes smaller, making the annular bag 311 hard as a whole, and then squeezing the outer surface of the inner support plate 305. Specifically, the annular bag 311 first squeezes the inner support plate 306 When the cam 314 is in the air, the cam 314a is in the air, and the cam 314b is in the air, so the cam 314b is in the air. When the cam 314b is in the air, the cam 314b is in the air, so the cam 314b is in the air. When the cam 314b is in the air, the cam 314b is in the air, so the cam 314b is in the air. When the cam 314b is in the air, the cam 314b is in the air, so the cam 314b is in the air.

[0039] Example 2: Please refer to Figure 3 - Figure 7 , a connection structure for quick connection of photovoltaic panels, which is different from embodiment 1 in that a passive ring 307 is rotatably installed on the inner end of the connection box 3, and the passive ring 307 and the annular capsule 311 are on the same axis. A plurality of card plates 310 are slidably installed on the bottom end of the outer support ring 306, and the card plates 310 are arranged in an annular shape and are located inside the passive ring 307. A card groove 101 is opened on the outer surface of the pin 4, and the card plate 310 corresponds to the card groove 101. Specifically, a plurality of arc-shaped protrusions are fixedly installed on the inner end of the passive ring 307, and the arc-shaped protrusions are in contact with the card plate 3 10, when the passive ring 307 rotates, the internal arc-shaped protrusion contacts the outer surface of the clamping plate 310, and the clamping plate 310 is squeezed by the slope surface, so that the clamping plate 310 moves toward the annular capsule 311, and the squeezing block 302 is clamped between two adjacent clamping plates 310, so that when the driving cylinder 309 rotates, the threaded ring 308 does not rotate with the driving cylinder 309. The bottom end of the bottom ring 303 is provided with an arc-shaped groove. When the pin 4 is inserted into the annular capsule 311, the locking rod 102 rotates, and the outer surface is then clamped in the arc-shaped groove.

[0040] The left end of the heating tube 201 is penetrated by a moving rod 202, and the end of the moving rod 202 away from the heating tube 201 is fixedly welded with a locking plate 402, and the outer surface of the annular bag 311 is sleeved with a force ring 304, which is made of metal and has a certain elasticity, and the force ring 304 is sleeved on the outer surface of the annular bag 311, and the end of the locking plate 402 away from the moving rod 202 is rotatably installed with a cross rod 203, and the end of the cross rod 203 away from the moving rod 202 is rotatably installed with two extension rods, and the two moving rods 202 are rotatably connected to the front and rear ends of the force ring 304 respectively. When the moving rod 202 moves toward the right and pulls the cross rod 203 to move through the locking plate 402, the cross rod 203 will pull the two end points of the right end of the force ring 304 together during the movement, so that it can apply more clamping force to the annular bag 311;

[0041] like Figure 8 - Figure 11 As shown, two arc-shaped holes 205 are provided at the upper end of the connecting box 3, and a locking tube 314 is fixedly installed at the right end of the bottom ring 303. The upper end of the locking tube 314 is passed through the arc-shaped hole 205 close to the passive ring 307, and a synchronization rod 403 is passed through the arc-shaped hole 205 away from the passive ring 307. An unlocking column 401 is installed at the upper end of the synchronization rod 403, and the unlocking column 401 is fixedly welded to the upper end of the moving rod 202. A bayonet is provided at the rear end of the lock plate 402, and the unlocking column 401 is engaged in the bayonet, so that the current moving rod 202 cannot move.

[0042] When the locking lever 314 is unlocked, the locking lever 314 is unlocked and the locking lever 314 is unlocked, so that the locking lever 314 can be unlocked.

[0043] like Figure 9 - Figure 11 As shown, the outer surface of the lock tube 314 is provided with a plurality of rectangular holes, each of which is provided with a force-bearing plate 407. The outer surface of the force-bearing plate 407 is provided with a certain protrusion. The purpose is that when the lock hole 103 is sleeved on the outer surface of the lock tube 314, the protrusion on the outer surface of the force-bearing plate 407 contacts the inner wall of the lock hole 103. The end of the force-bearing plate 407 close to the center rod 406 is fixedly installed with a triangular block 410. The outer surface of the center rod 406 is provided with a locking groove. When the triangular block 410 is inserted into the locking groove and squeezed at the slope of the outer surface of the triangular block 410, the center rod 406 can move upward. The force-bearing plate 407 and the center rod 406 are connected by a clamping spring 409.

[0044] The upper end of the center rod 406 is fixedly welded to a limit plate 405, and the limit plate 405 is located above the limit ring at the upper end of the inner side of the lock tube 314. The upper end of the limit plate 405 is fixedly welded to a driving rod 404, and a circular hole is opened at the upper end of the driving rod 404. The left end of the synchronization rod 403 is fixedly installed with a cylinder, and the cylinder is passed through the inside of the circular hole. If the bottom end of the center rod 406 is not clamped by the triangular block 410 at this time, the center rod 406 will swing inside the lock tube 314. At this time, the upper driving rod 404 cannot effectively drive the synchronization rod 403 to move. When the lock tube 314 moves along the trajectory of the arc hole 205, the circular hole at the upper end of the driving rod 404 can directly break away from the sleeve of the cylinder. When the bottom end of the center rod 406 is clamped by the triangular block 410, the upper and lower ends of the center rod 406 are fixed and no longer shake, and the synchronization rod 403 can be driven to move.

[0045] The upper end of the lock tube 314 is fixedly sleeved with a collar 312, and the end of the collar 312 away from the synchronization rod 403 is fixedly connected to a rack 313. The teeth on the outer surface of the rack 313 are triangular, and the outer surface of the passive ring 307 is fixedly installed with a plurality of teeth, and the teeth on the outer surface of the passive ring 307 are arranged in a ring shape. The teeth on the outer surface of the passive ring 307 are meshed with the rack 313. The rack 313 is made of elastic metal, so when the lock tube 314 moves along the arc hole 205, it can slide smoothly along the teeth on the outer surface of the passive ring 307. The lock tube 314 is connected to the inside of the arc hole 205 by the storage spring 204.

[0046] like Figure 12 As shown, a passive plug 207 is slidably installed on the inner end of the heated cylinder 201, and the left end of the passive plug 207 is fixedly connected to the right end of the moving rod 202 by a bolt. The passive plug 207 and the heated cylinder 201 are connected by a return spring 206. An active plug 208 is slidably installed on the inner end of the heated cylinder 201, and the outer surfaces of the passive plug 207 and the active plug 208 are fixedly sleeved with sealing rubber rings and are in close contact with the inner wall of the heated cylinder 201 to increase the sealing performance. The chamber between the passive plug 207 and the active plug 208 is filled with silicone oil, and the thermal expansion coefficient of the silicone oil is similar to that of the latch 4. A screw 211 is fixedly installed on the right end of the active plug 208, and a rectangular groove is opened on the outer surface of the screw 211. A rectangular block is fixedly installed on the inner end of the heated cylinder 201, and the rectangular block is inserted into the rectangular groove to prevent the screw 211 from rotating.

[0047] A passive gear 210 is rotatably installed at the inner end of the connecting box 3, and a sleeve is fixedly installed at the left end of the passive gear 210, and the sleeve is threadedly sleeved on the outer surface of the screw 211. A crown gear 209 is rotatably installed at the inner bottom end of the connecting box 3, and the crown gear 209 is engaged with the passive gear 210. A knob is rotatably installed at the bottom end of the connecting box 3, and the upper end of the knob is fixedly connected to the bottom end of the crown gear 209. By slightly rotating the knob, the crown gear 209 drives the passive gear 210 to rotate, and then the screw 211 drives the active plug 208 to move slightly to the left or right, thereby adjusting the space size of the silicone oil inside the heating tube 201. In this case, the silicone oil in the heating tube 201 needs to reach a sufficiently high temperature and undergo a long heating time before it can push the passive plug 207 to move. In this way, the value of the thermal expansion change can be flexibly adjusted according to the on-site environment and climatic conditions.

[0048] The working principle of the present invention is:

[0049] When in use, the latches 4 at the four corners of the photovoltaic panel 2 are respectively inserted into the corresponding inner support plates 305, and then the locking rod 102 is toggled to make it perpendicular to the latch 4. Then the lock hole 103 on the outer surface of the locking rod 102 is inserted into the outer surface of the lock tube 314, and the protrusion on the outer surface of the force-bearing plate 407 contacts the inner wall of the lock hole 103. Then, when the triangular block 410 is inserted into the locking groove and squeezed by the slope of the outer surface of the triangular block 410, the central rod 406 can move upward. At this time, the upper and lower ends of the central rod 406 are fixed and no longer shake;

[0050] Then, the locking rod 102 is rotated to secure the photovoltaic panel 2. During the rotation of the locking rod 102, the bottom ring 303 also rotates, driving the driving cylinder 309 to rotate. At this time, the threaded ring 308 also moves upward and squeezes the annular capsule 311 through the squeezing block 302, thereby reducing the gap between the fine sand inside the annular capsule 311 and hardening the outer surface of the annular capsule 311. In the process of being squeezed, the annular capsule 311 clamps the outer surface of the latch 4 through the inner end of the inner support plate 305.

[0051] At the same time, when the bottom ring 303 rotates, the lock tube 314 is driven to slide along the inside of the arc hole 205 and compress the storage spring 204. When the lock tube 314 moves along the arc hole 205, the rack 313 can slide smoothly along the teeth on the outer surface of the passive ring 307. Then, the triangular teeth on the outer surface of the passive ring 307 engage with the triangular teeth on the outer surface of the rack 313. At this time, the storage spring 204 cannot release its elastic force.

[0052] When the latch 4 is exposed to high temperature for a long time, it begins to expand slightly. The silicone oil inside the heated cylinder 201 also begins to expand due to the heat, and drives the lock plate 402 to move leftward via the movable rod 202. As a result, the cross rod 203 also moves leftward, and the force ring 304 becomes loose, so that the stress on the annular bag 311 is reduced. Therefore, the latch 4 has a certain amount of expansion space during the expansion process, preventing the connection point from being damaged by force and increasing the probability of damage.

[0053] If the annular bag 311 is damaged during long-term use, so that the fine sand inside is exposed, since the card plate 310 is always in contact with the outer surface of the annular bag 311, at this time, the force storage spring 204 releases the elastic force and drives the lock tube 314 to move, so that the rack 313 drives the passive ring 307 to rotate, and the card plate 310 is squeezed by the slope surface of the arc-shaped protrusion inside the passive ring 307, so that the card plate 310 moves toward the direction of the pin 4 and is finally engaged in the card groove 101 on the outer surface of the pin 4, thereby effectively preventing the photovoltaic panel 2 from being blown away by strong winds.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A photovoltaic panel connection structure, comprising a support frame (1), characterized in that: A photovoltaic panel (2) is provided above the support frame (1), and a plurality of connection boxes (3) are fixedly installed on the upper end of the support frame (1) by bolts, and the connection boxes (3) are respectively provided at four corners below the photovoltaic panel (2), and a plurality of latches (4) are rotatably installed on the bottom end of the photovoltaic panel (2), and the latches (4) respectively correspond to the connection boxes (3), and an upper sealing cover (301) is fixedly installed on the upper end of the connection box (3), and a plurality of latches (4) are provided inside the connection box (3) for facilitating the latches (4). ) A fast-fixing locking device, wherein the inner right end of the connection box (3) is fixedly mounted with a heating cylinder (201) via a clamp, the bottom end of the connection box (3) is rotatably mounted with a bottom ring (303), and the bottom end of the latch (4) is rotatably mounted with a locking rod (102) via a rotating shaft, then after the latch (4) and the locking rod (102) are respectively passed through the upper sealing cover (301) and the bottom ring (303), the locking rod (102) is bent, thereby achieving fast fixation of the photovoltaic panel (2); The locking device includes an outer support ring (306), the outer support ring (306) is fixedly mounted on the lower end of the upper sealing cover (301), and a plurality of inner support plates (305) are provided below the upper sealing cover (301), the inner support plates (305) are arranged in an annular shape, and an annular bag (311) is provided on the outer surface of the inner support plate (305), and the interior of the annular bag (311) is filled with fine sand. When the annular bag (311) is squeezed, the gap between the fine sand inside becomes smaller, so that the annular bag (311) becomes hard as a whole, and then the outer surface of the inner support plate (305) is squeezed; A moving rod (202) is provided at the left end of the heating tube (201), a locking plate (402) is fixedly mounted at one end of the moving rod (202) away from the heating tube (201), and a force ring (304) is provided on the outer surface of the annular bag (311); A passive plug (207) is slidably mounted on the inner end of the heating cylinder (201), the left end of the passive plug (207) is fixedly connected to the right end of the moving rod (202), the passive plug (207) and the heating cylinder (201) are connected via a return spring (206), an active plug (208) is slidably mounted on the inner end of the heating cylinder (201), and a screw (211) is fixedly mounted on the right end of the active plug (208); A passive gear (210) is rotatably mounted on the inner end of the connecting box (3), a sleeve is fixedly mounted on the left end of the passive gear (210), and the sleeve is threadedly sleeved on the outer surface of the screw (211), and a crown gear (209) is rotatably mounted on the inner bottom end of the connecting box (3), and the crown gear (209) is meshed with the passive gear (210).

2. A photovoltaic panel connection structure according to claim 1, characterized in that: A driving cylinder (309) is fixedly mounted on the upper end of the bottom ring (303), a threaded ring (308) is provided on the inner end threaded sleeve of the driving cylinder (309), and a plurality of push plates are fixedly mounted on the upper end of the threaded ring (308), and a plurality of extrusion blocks (302) are provided below the annular bag (311), and the extrusion blocks (302) are fixedly connected to the threaded ring (308).

3. A photovoltaic panel connection structure according to claim 2, characterized in that: A passive ring (307) is rotatably mounted on the inner end of the connection box (3), and the passive ring (307) and the annular capsule (311) are located on the same axis. A plurality of card plates (310) are slidably mounted on the bottom end of the outer support ring (306), and the card plates (310) are arranged in an annular shape and are located inside the passive ring (307).

4. A photovoltaic panel connection structure according to claim 3, characterized in that: The locking plate (402) is rotatably mounted on one end of the movable rod (202) with a cross rod (203), and the cross rod (203) is rotatably mounted on one end of the movable rod (202) with two extension rods, and the two movable rods (202) are rotatably connected to the front and rear ends of the force ring (304) respectively. When the movable rod (202) moves toward the right and pulls the cross rod (203) to move through the locking plate (402), the cross rod (203) will pull the two end points of the right end of the force ring (304) to gather together during the movement.

5. The photovoltaic panel connection structure according to claim 4, characterized in that: Two arc-shaped holes (205) are formed at the upper end of the connection box (3), a lock tube (314) is fixedly mounted on the right end of the bottom ring (303), the upper end of the lock tube (314) is inserted into the arc-shaped hole (205) close to the passive ring (307), and a synchronization rod (403) is inserted into the arc-shaped hole (205) away from the passive ring (307).

6. The photovoltaic panel connection structure according to claim 5, characterized in that: An unlocking column (401) is installed at the upper end of the synchronization rod (403), and an unlocking column (401) is fixedly installed at the upper end of the moving rod (202). A bayonet is provided at the rear end of the lock plate (402), and the unlocking column (401) is engaged in the bayonet, so that the current moving rod (202) cannot move.

7. The photovoltaic panel connection structure according to claim 6, characterized in that: A center rod (406) is passed through the inner end of the lock tube (314), a cone block (408) is provided below the center rod (406), and the upper end of the cone block (408) is passed through the interior of the lock tube (314). A plurality of rectangular holes are provided on the outer surface of the lock tube (314), and a force-bearing plate (407) is passed through each of the rectangular holes.

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