Protective device for photovoltaic power generation

Abstract

The invention discloses a protection device for photovoltaic power generation, and relates to the technical field of protection devices for photovoltaic power generation, the protection device for photovoltaic power generation comprises a guide rail, a connecting rod is fixed on the side wall of the guide rail, the connecting rod penetrates through a base, the penetrating position is rotatably connected, and a photovoltaic panel main body is fixed on the inner wall of the base. According to the protection device for photovoltaic power generation, rain and snow are collected through the collection box, the collection box moves downwards all the time along with the weight of the collected rain and snow, when the rain and snow are large or lasts for a long time, the collection box is filled with rainwater, and at the moment, the collection box pushes a first slope block to slide downwards by a distance so that a supporting block can be completely separated from a gravity plate; the gravity plate rotates under the action of gravity when not supported by the supporting block any more, and the gravity plate impacts the sliding cover when rotating to be vertical, so that the sliding cover slides to shield the photovoltaic panel main body, and the photovoltaic panel main body is prevented from being damaged due to long-time knocking of rain, snow or hail.

Description

Technical Field

[0001] The present invention relates to the technical field of protection devices for photovoltaic power generation, and specifically to a protection device for photovoltaic power generation. Background Technique

[0002] With the rapid development of clean energy, as an important way to utilize renewable energy, photovoltaic power generation has been widely applied. However, in the actual operation process, photovoltaic panels are faced with the influence of various adverse factors, such as heavy rain, hail, etc., which will cause direct physical damage to the photovoltaic panels and reduce their service life.

[0003] A protection device for photovoltaic power generation with the publication number CN214177248U includes: a slide rail, a protective cover groove, a connecting rod, an impact sensor, an electric push rod, a solar panel and a dovetail slider. This device has a protective cover groove and an impact sensor, which can automatically block and protect the solar panel when impacted by hail, heavy snow, etc., avoiding the damage of the solar panel.

[0004] However, the impact sensor in the above protection device for photovoltaic power generation keeps running through an external power supply. In extreme weather such as heavy rain and hail, it is also relatively easy to cause a circuit break, and it cannot be guaranteed whether the external power supply can still operate normally. When the impact sensor cannot operate normally, the device cannot be used normally to protect the photovoltaic panel. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a protection device for photovoltaic power generation, which solves the problems raised in the above background technique.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A protection device for photovoltaic power generation includes a guide rail, a connecting rod is fixed to the side wall of the guide rail, the connecting rod penetrates through the base and is rotatably connected at the penetration point, a photovoltaic panel main body is fixed to the inner wall of the base, a sliding cover slides inside the guide rail, a limiting device for automatically pushing the sliding cover to close is arranged on the side of the guide rail, an ice-breaking device for conveniently drilling through the ice layer is arranged on the outer wall of the sliding cover, and a hinged device for conveniently draining water is arranged on the side wall of the base;

[0007] Among them, the limiting device includes a support frame, a gravity plate, a support block, a first inclined surface block, a collection box, a sawtooth, a gear, a threaded rod and a baffle. The support frame and the guide rail are fixedly installed on the same plane, and the side wall of the support frame fits the side wall of the sliding cover.

[0008] According to the above technical solution, a rotating rod is fixed to the inner wall of the support frame. The rotating rod penetrates through the gravity plate and is rotatably connected at the penetration point. A guiding groove is formed in the side wall of the support frame. The support block is slidably connected to the inner wall of the guiding groove. The upper surface of the support block is in contact with the bottom surface of the gravity plate, and the support block supports and limits the gravity plate.

[0009] According to the side wall of the support frame, a guiding strip is fixed. The first inclined block is slidably connected to the outer wall of the guiding strip. The inclined surface of the first inclined block is slidably connected to the support block. When the first inclined block slides downward, it pushes the support block to slide away from the gravity plate. The collection box is fixedly connected to the upper surface of the first inclined block. When the collection box collects rain, snow or hail, it pushes the first inclined block downward. The saw teeth are fixedly connected to the upper surface of the sliding cover. When the sliding cover slides, it drives the saw teeth to move.

[0010] According to the gear, it is rotatably connected to the side wall of the guide rail. The gear meshes with the saw teeth. When the saw teeth move, they drive the gear to rotate. The threaded rod is fixedly connected to the side wall of the gear close to the guide rail. When the gear rotates, it drives the threaded rod to rotate. The threaded rod penetrates through the guide rail and is rotatably connected at the penetration point. The baffle is slidably connected to the upper surface of the guide rail. The threaded rod penetrates through the baffle and is threadedly connected at the penetration point. When the threaded rod rotates, it drives the baffle to slide.

[0011] According to the above technical solution, the ice-breaking device includes a pressing block, a fixing column, a first spring, a sliding block, a hinge plate, a disc, a drill bit, a hinge rod and a snow shovel. The pressing block is fixedly connected to the side wall of the guide rail. The fixing column is fixedly connected to the side wall of the sliding cover. When the sliding cover slides, it drives the fixing column to move. The fixing column penetrates through the sliding block and is slidably connected at the penetration point. When the fixing column moves, it drives the sliding block to move.

[0012] According to the above technical solution, the first spring is fixedly connected to the bottom surface of the sliding block. The end of the first spring away from the sliding block is fixedly connected to the side wall of the sliding cover. A first fixing rod is fixed to the side wall of the sliding block. When the sliding block slides, it drives the first fixing rod to move. The first fixing rod penetrates through one end of the hinge plate and is rotatably connected at the penetration point. The disc is rotatably connected to the front of the sliding cover.

[0013] According to the above technical solution, a second fixing rod is fixed to the front of the disc. The second fixing rod penetrates through the other end of the hinge plate and is rotatably connected at the penetration point. When the hinge plate moves, it drives the second fixing rod to rotate around the central axis of the disc. When the second fixing rod rotates, it drives the disc to rotate. The drill bit is fixedly connected to the front of the disc. When the disc rotates, it drives the drill bit to rotate. One end of the hinge rod is hinged to the side wall of the disc. When the disc rotates, it drives the hinge rod to rotate. The snow shovel is hinged to the front of the sliding cover. The other end of the hinge rod is hinged to the side wall of the snow shovel. When the hinge rod rotates, it drives the snow shovel to swing.

[0014] According to the above technical solution, the hinge device includes a second inclined block, a limit rod, a limit block, a second spring, a slider and a limit plate. The second inclined block is fixedly connected to the front side of the sliding cover, and the sliding cover drives the second inclined block to move when it slides. The limit rod is fixedly connected to the side wall of the base away from one end of the connecting rod.

[0015] According to the above technical solution, the limit rod passes through the limit block and is rotatably connected at the penetration point. When the limit rod slides downward, it drives the limit block to move downward. The bottom end of the second spring is fixedly connected to the upper surface of the limit block. The slider is fixedly connected to the upper end of the second spring. When the limit block moves downward, the second spring is stretched. The limit plate is fixedly connected to the side wall of the guide rail, and the upper surface of the slider and the bottom surface of the limit plate are slidably connected.

[0016] The present invention provides a protection device for photovoltaic power generation, which has the following beneficial effects:

[0017] (1) The present invention is provided with a limiting device. In rainy, snowy or hail weather, rainy snow is collected by a collection box, and the collection box will move downward with the weight of the collected rainy snow. When the rainy snow is heavy or lasts for a long time, the collection box is filled with rainwater. At this time, the collection box pushes the first inclined block to slide downward a distance that makes the support block completely separate from the gravity plate. When the gravity plate is no longer supported by the support block, it rotates under the force of gravity. When the gravity plate rotates to a vertical position, it hits the sliding cover, so that the sliding cover slides to block the photovoltaic panel body, thereby solving the problem that the photovoltaic panel body is damaged by being hit by rainy, snowy or hail for a long time; the sliding cover slides to block the photovoltaic panel body and drives the saw teeth to move at the same time. The movement of the saw teeth drives the gear to rotate. When the gear rotates, it drives the threaded rod to rotate. The rotation of the threaded rod drives the baffle to slide to the top of the connection between the guide rail and the sliding cover, and blocks the connection between the guide rail and the sliding cover, thereby solving the problem that the connection between the guide rail and the sliding cover is frozen by rainy, snowy or hail, and the sliding cover cannot slide normally.

[0018] (2) The present invention is provided with an ice-breaking device. While the sliding cover slides to block the main body of the photovoltaic panel, the sliding of the sliding cover drives the fixed column, the first spring, and the sliding block to move together. When the sliding block moves, it cooperates with the extrusion block and the first spring to slide on the fixed column. The back-and-forth sliding of the sliding block drives the articulated plate to move, and the movement of the articulated plate drives the disc to rotate. When the disc rotates, it drives the drill bit to rotate, thereby breaking the frozen rain and snow that may be generated on the surface of the main body of the photovoltaic panel, solving the problem that the frozen ice blocks the sliding of the sliding cover and makes the sliding cover unable to close; while the disc rotates, it drives the articulated rod to rotate. When the articulated rod rotates, it drives the snow shovel to rotate back and forth around its hinge with the sliding cover, causing the snow shovel to swing on the surface of the main body of the photovoltaic panel, thereby shoveling up the ice layer formed on the surface of the main body of the photovoltaic panel, avoiding that the height of the drill bit cannot break the ice at a lower position, and at the same time throwing the broken ice or snow outwards, reducing the elastic force received by the sliding cover when it hits the ice or snow, and solving the problem that the sliding cover is blocked by the ice and too much kinetic energy is consumed and it cannot support the sliding cover to slide to the end point.

[0019] (3) The present invention is provided with a hinge device. When the sliding cover slides to the end point, it drives the second inclined block to push the limit rod to slide downward, so that the limit rod drives the base to rotate, tilting the main body of the photovoltaic panel, causing the rainwater on the surface of the main body of the photovoltaic panel to slide off, thereby avoiding the retention of rainwater on the main body of the photovoltaic panel or entering the inside of the main body of the photovoltaic panel along the gap, which may damage the main body of the photovoltaic panel; after the rainwater on the upper surface of the main body of the photovoltaic panel is drained, it cooperates with the limit block and the second spring to drive the limit rod to slide upward to reset the base and the main body of the photovoltaic panel, facilitating the normal use in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the limit device of the present invention;

[0022] Figure 3 is of the present invention Figure 2 schematic diagram of the partial enlarged structure of area A;

[0023] Figure 4 is a schematic diagram of the full-section structure of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the hinge device of the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the ice-breaking device of the present invention;

[0026] Figure 7 is of the present invention Figure 6 schematic diagram of the partial enlarged structure of area B.

[0027] In the figure: 1, guide rail; 2, base; 3, main body of photovoltaic panel; 4, sliding cover; 51, support frame; 52, gravity plate; 53, support block; 54, first inclined block; 55, collection box; 56, saw teeth; 57, gear; 58, threaded rod; 59, baffle; 61, extrusion block; 62, fixed column; 63, first spring; 64, sliding block; 65, hinge plate; 66, disc; 67, drill bit; 68, hinge rod; 69, snow shovel; 71, second inclined block; 72, limit rod; 73, limit block; 74, second spring; 75, slider; 76, limit plate. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-7 , an embodiment of the present invention is: a protection device for photovoltaic power generation includes a guide rail 1. A connecting rod is fixed to the side wall of the guide rail 1. The connecting rod penetrates through the base 2 and is rotatably connected at the penetration point. The main body of the photovoltaic panel 3 is fixed to the inner wall of the base 2. A sliding cover 4 slides on the inner wall of the guide rail 1. A limiting device for automatically pushing the sliding cover 4 to close is arranged on the side of the guide rail 1.

[0030] The limiting device includes a support frame 51, a gravity plate 52, a support block 53, a first inclined block 54, a collection box 55, a sawtooth 56, a gear 57, a threaded rod 58 and a baffle 59. The support frame 51 and the guide rail 1 are fixedly installed on the same plane. The side wall of the support frame 51 is attached to the side wall of the sliding cover 4. A rotating rod is fixed to the inner wall of the support frame 51. The rotating rod passes through the gravity plate 52 and is rotatably connected at the passing-through position. When the gravity plate 52 rotates to the vertical direction, it impacts the sliding cover 4, pushing the sliding cover 4 to slide along the guide rail 1 in a direction away from the support frame 51, so that the sliding cover 4 closes relative to the base 2 to shield the main body 3 of the photovoltaic panel. A guide groove is formed in the side wall of the support frame 51. The support block 53 is slidably connected to the inner wall of the guide groove. The upper surface of the support block 53 is attached to the bottom surface of the gravity plate 52. When the support block 53 completely disengages from the gravity plate 52, the gravity plate 52 rotates around the rotating rod under the action of gravity. A guide bar is fixed to the side wall of the support frame 51. The first inclined block 54 is slidably connected to the outer wall of the guide bar. The inclined surface of the first inclined block 54 is slidably connected to the support block 53. When the first inclined block 54 slides downward, it pushes the support block 53 to slide in a direction away from the gravity plate 52. The collection box 55 is fixedly connected to the upper surface of the first inclined block 54. Rain, snow or hail is collected by the collection box 55. The weight of the rain, snow or hail is affected by gravity, driving the collection box 55 to slide downward. When the collection box 55 slides downward, it pushes the first inclined block 54 to slide downward along the guide bar. The sawtooth 56 is fixedly connected to the upper surface of the sliding cover 4. When the sliding cover 4 slides in a direction away from the support frame 51, it drives the sawtooth 56 to move together. The gear 57 is rotatably connected to the side wall of the guide rail 1. The gear 57 meshes with the sawtooth 56. When the sawtooth 56 moves, it drives the gear 57 meshing with it to rotate. The threaded rod 58 is fixedly connected to the side wall of the gear 57 close to the guide rail 1. When the gear 57 rotates, it drives the threaded rod 58 to rotate together. The threaded rod 58 passes through the guide rail 1 and is rotatably connected at the passing-through position. The baffle 59 is slidably connected to the upper surface of the guide rail 1. The threaded rod 58 passes through the baffle 59 and is threadedly connected at the passing-through position. Since the baffle 59 is slidably connected to the upper surface of the guide rail 1 and is threadedly connected to the threaded rod 58, when the threaded rod 58 rotates, it drives the baffle 59 to slide in the direction of the sliding cover 4 to shield the gap between the sliding cover 4 and the guide rail 1. In rainy, snowy or haily weather, the limiting device collects rain and snow through the collection box 55. The collection box 55 will keep sliding downward with the weight of the collected rain and snow. When the rain and snow are heavy or the duration is long, the collection box 55 is filled with rain and snow. At this time, the distance that the collection box 55 pushes the first inclined block 54 to slide downward causes the support block 53 to completely disengage from the gravity plate 52. When the gravity plate 52 is no longer supported by the support block 53, it rotates under the action of gravity. When the gravity plate 52 rotates to the vertical position, it impacts the sliding cover 4, causing the sliding cover 4 to slide to shield the main body 3 of the photovoltaic panel, thereby preventing the main body 3 of the photovoltaic panel from being damaged by the long-term beating of rain, snow or hail;When the sliding cover 4 slides to block the main body 3 of the photovoltaic panel, it drives the sawtooth 56 to move. The movement of the sawtooth 56 drives the gear 57 to rotate. When the gear 57 rotates, it drives the threaded rod 58 to rotate. The rotation of the threaded rod 58 drives the baffle 59 to slide above the connection between the guide rail 1 and the sliding cover 4, blocking the connection between the guide rail 1 and the sliding cover 4, thus preventing the connection between the guide rail 1 and the sliding cover 4 from being frozen by rain, snow or hail and unable to make the sliding cover 4 slide normally.

[0031] When this embodiment works: in rainy, snowy or hailstorm weather, the rain, snow or hail is caught by the collection box 55. The weight of the rain, snow or hail is affected by gravity, driving the collection box 55 to slide downward. When the collection box 55 slides downward, it pushes the first inclined plane block 54 to slide downward along the guide bar. When the first inclined plane block 54 slides downward, it pushes the support block 53 to slide away from the gravity plate 52. When the support block 53 completely disengages from the gravity plate 52, the gravity plate 52 rotates around the rotating rod under the action of gravity. When the gravity plate 52 rotates to the vertical direction, it impacts the sliding cover 4, pushing the sliding cover 4 to slide along the guide rail 1 away from the support frame 51, so that the sliding cover 4 is closed relative to the base 2 to block the main body 3 of the photovoltaic panel. When the sliding cover 4 slides away from the support frame 51, it drives the sawtooth 56 to move together. When the sawtooth 56 moves, it drives the gear 57 meshing with it to rotate. When the gear 57 rotates, it drives the threaded rod 58 to rotate together. Since the baffle 59 is slidably connected to the upper surface of the guide rail 1 and is threadedly connected to the threaded rod 58, when the threaded rod 58 rotates, it drives the baffle 59 to slide in the direction of the sliding cover 4 to block the gap between the sliding cover 4 and the guide rail 1.

[0032] Please refer to Figures 1-7, on the basis of the above embodiments, in another embodiment of the present invention, an ice-breaking device for facilitating ice drilling and crushing is provided on the outer wall of the sliding cover 4. The ice-breaking device includes an extrusion block 61, a fixed column 62, a first spring 63, a sliding block 64, a hinge plate 65, a disc 66, a drill bit 67, a hinge rod 68 and a snow shovel 69. The extrusion block 61 is fixedly connected to the side wall of the guide rail 1, and the fixed column 62 is fixedly connected to the side wall of the sliding cover 4. When the sliding cover 4 slides in the direction away from the support frame 51, it drives the fixed column 62 to move together. The fixed column 62 passes through the sliding block 64 and is slidably connected at the penetration point. When the fixed column 62 moves, the sliding block 64 penetrated by it also moves along with the fixed column 62. The first spring 63 is fixedly connected to the bottom surface of the sliding block 64, and the end of the first spring 63 away from the sliding block 64 is fixedly connected to the side wall of the sliding cover 4. When the sliding block 64 moves to the extrusion block 61, it is squeezed by the extrusion block 61 and slides along the inclined surface of the extrusion block 61 in the direction of the sliding cover 4 along the fixed column 62, while squeezing the first spring 63. When the sliding block 64 moves away from the extrusion block 61, the sliding block 64 is pushed by the first spring 63 to slide in the direction away from the sliding cover 4. A first fixed rod is fixed to the side wall of the sliding block 64. When the sliding block 64 slides in the direction of the sliding cover 4, it drives the first fixed rod to move in the direction of the sliding cover 4 together. The first fixed rod penetrates one end of the hinge plate 65 and is rotatably connected at the penetration point. When the first fixed rod moves in the direction of the sliding cover 4, it pushes the hinge plate 65 to move. The disc 66 is rotatably connected to the front surface of the sliding cover 4, and a second fixed rod is fixed to the front surface of the disc 66. The second fixed rod penetrates the other end of the hinge plate 65 and is rotatably connected at the penetration point. When the hinge plate 65 moves, it drives the second fixed rod to move. And since the second fixed rod is fixed to the front surface of the disc 66, the second fixed rod can only perform circular motion around the central axis of the disc 66. When the second fixed rod performs circular motion, it drives the disc 66 to rotate. The drill bit 67 is fixedly connected to the front surface of the disc 66. When the disc 66 rotates, it drives the drill bit 67 to rotate. The drill bit 67 rotates to break the ice layer on the surface of the photovoltaic panel main body 3. One end of the hinge rod 68 is hinged to the side wall of the disc 66. When the disc 66 rotates, it drives the hinge rod 68 to rotate. The snow shovel 69 is hinged to the front surface of the sliding cover 4. When the snow shovel 69 swings, it shovels up the ice layer attached to the surface of the photovoltaic panel main body 3 and throws it outwards. The other end of the hinge rod 68 is hinged to the side wall of the snow shovel 69. When the hinge rod 68 rotates, it drives the snow shovel 69 to swing. While the ice-breaking device slides the sliding cover 4 to block the photovoltaic panel main body 3, it drives the fixed column 62, the first spring 63 and the sliding block 64 to move together through the sliding of the sliding cover 4. When the sliding block 64 moves, it cooperates with the extrusion block 61 and the first spring 63 to slide on the fixed column 62. The sliding block 64 slides back and forth to drive the hinge plate 65 to move. The hinge plate 65 moves to drive the disc 66 to rotate. When the disc 66 rotates, it drives the drill bit 67 to rotate.Thereby, the frozen rain and snow that may form on the surface of the photovoltaic panel main body 3 are broken, preventing the frozen ice from blocking the sliding of the sliding cover 4 and making it impossible for the sliding cover 4 to close. While the disc 66 rotates, it drives the articulated rod 68 to rotate. When the articulated rod 68 rotates, it drives the snow shovel 69 to rotate back and forth around its hinge with the sliding cover 4, causing the snow shovel 69 to swing on the surface of the photovoltaic panel main body 3, thereby shoveling up the ice layer formed on the surface of the photovoltaic panel main body 3, preventing the height of the drill bit 67 from being unable to break the ice at lower positions, and at the same time throwing the already broken ice or snow outwards, reducing the elastic force received by the sliding cover 4 when it hits the ice or snow, and preventing the kinetic energy received by the sliding cover 4 when it is hit by the gravity plate 52 from being consumed too much to support the sliding of the sliding cover 4 to the end point.

[0033] The side wall of the base 2 is provided with a hinge device for facilitating drainage. The hinge device includes a second inclined surface block 71, a limiting rod 72, a limiting block 73, a second spring 74, a slider 75 and a limiting plate 76. The second inclined surface block 71 is fixedly connected to the front surface of the sliding cover 4. When the sliding cover 4 slides in a direction away from the support frame 51, it drives the second inclined surface block 71 to move as well. The limiting rod 72 is fixedly connected to the side wall of the base 2 at the end far from the connecting rod. When the second inclined surface block 71 moves to the position of the limiting rod 72, it pushes the limiting rod 72 to slide downward along the inclined surface of the second inclined surface block 71. When the limiting rod 72 slides downward, it drives the base 2 to rotate around the connecting rod. The base 2 drives the photovoltaic panel main body 3 to rotate, making the surface of the photovoltaic panel main body 3 inclined, and pouring the rain and snow on the surface downward. The limiting rod 72 passes through the limiting block 73 and is rotatably connected at the passing position. When the limiting rod 72 slides downward, it drives the limiting block 73 to move downward together. The bottom end of the second spring 74 is fixedly connected to the upper surface of the limiting block 73. The slider 75 is fixedly connected to the upper end of the second spring 74. When the limiting block 73 moves downward, it stretches the second spring 74. The limiting plate 76 is fixedly connected to the side wall of the guide rail 1. The upper surface of the slider 75 is slidably connected to the bottom surface of the limiting plate 76. When the second spring 74 is stretched to the limit, it rebounds, driving the limiting block 73 to move upward. The upward movement of the limiting block 73 drives the limiting rod 72 to slide upward. When the limiting rod 72 slides upward, it drives the base 2 to rotate, resetting the base 2 and the photovoltaic panel main body 3. This hinge device drives the second inclined surface block 71 to push the limiting rod 72 to slide downward when the sliding cover 4 slides to the end point, causing the limiting rod 72 to drive the base 2 to rotate, inclining the photovoltaic panel main body 3, and making the rain and snow on the surface of the photovoltaic panel main body 3 slide off, thereby preventing the rain and snow from staying on the photovoltaic panel main body 3 or entering the interior of the photovoltaic panel main body 3 along the gaps, damaging the photovoltaic panel main body 3. After the rain and snow on the upper surface of the photovoltaic panel main body 3 are poured out, it cooperates with the limiting block 73 and the second spring 74 to drive the limiting rod 72 to slide upward, resetting the base 2 and the photovoltaic panel main body 3.

[0034] During the operation of this embodiment: when the sliding cover 4 slides in a direction away from the support frame 51, it drives the fixed column 62 to move together. When the fixed column 62 moves, the sliding block 64 penetrated by it also moves along with the fixed column 62. When the sliding block 64 moves to the extrusion block 61, it is extruded by the extrusion block 61 and slides along the inclined surface of the extrusion block 61 towards the sliding cover 4 along the fixed column 62, while squeezing the first spring 63. When the sliding block 64 moves away from the extrusion block 61, the sliding block 64 is pushed by the first spring 63 to slide in a direction away from the sliding cover 4. When the sliding block 64 slides towards the sliding cover 4, it drives the first fixed rod to move towards the sliding cover 4 together. When the first fixed rod moves towards the sliding cover 4, it pushes the hinge plate 65 to move. When the hinge plate 65 moves, it drives the second fixed rod to move. Also, since the second fixed rod is fixed to the front of the disc 66, the second fixed rod can only perform circular motion around the central axis of the disc 66. When the second fixed rod performs circular motion, it drives the disc 66 to rotate. When the disc 66 rotates, it drives the drill bit 67 to rotate. The rotation of the drill bit 67 breaks the ice layer on the surface of the main body 3 of the photovoltaic panel. While the disc 66 rotates, it drives the hinge rod 68 to rotate. When the hinge rod 68 rotates, it drives the snow shovel 69 to swing. When the snow shovel 69 swings, it shovels up the ice layer attached to the surface of the main body 3 of the photovoltaic panel and throws it outwards.

[0035] When the sliding cover 4 slides in a direction away from the support frame 51, it also drives the second inclined surface block 71 to move. When the second inclined surface block 71 moves to the limit rod 72, it pushes the limit rod 72 to slide downward along the inclined surface of the second inclined surface block 71. When the limit rod 72 slides downward, it drives the base 2 to rotate around the connecting rod. The base 2 drives the main body 3 of the photovoltaic panel to rotate, making the surface of the main body 3 of the photovoltaic panel inclined, and pouring the rain and snow on the surface downward. When the limit rod 72 slides downward, it also drives the limit block 73 to move downward together. When the limit block 73 moves downward, it stretches the second spring 74. When the second spring 74 is stretched to the limit, it rebounds, driving the limit block 73 to move upward. When the limit block 73 moves upward, it drives the limit rod 72 to slide upward. When the limit rod 72 slides upward, it drives the base 2 to rotate, so that the base 2 and the main body 3 of the photovoltaic panel return to their original positions.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for photovoltaic power generation, comprising a guide rail (1), characterized in that: A connecting rod is fixed to the side wall of the guide rail (1), the connecting rod passes through the base (2) and is rotatably connected at the penetration point, a photovoltaic panel body (3) is fixed to the inner wall of the base (2), a sliding cover (4) is slidably provided on the inner wall of the guide rail (1), a limiting device for automatically pushing the sliding cover (4) to close is provided on the side of the guide rail (1), an ice-breaking device for drilling into the broken ice layer is provided on the outer wall of the sliding cover (4), and a hinge device for facilitating drainage is provided on the side wall of the base (2); The limiting device comprises a support frame (51), a gravity plate (52), a support block (53), a first inclined block (54), a collection box (55), saw teeth (56), a gear (57), a threaded rod (58) and a baffle (59); the support frame (51) and the guide rail (1) are fixedly mounted on the same plane, and the side wall of the support frame (51) is in contact with the side wall of the sliding cover (4).

2. A photovoltaic power generation protection device according to claim 1, characterized in that: A rotating rod is fixed to the inner wall of the support frame (51), and the rotating rod passes through the gravity plate (52) and is rotatably connected at the penetration point. A guide groove is opened on the side wall of the support frame (51), and the support block (53) is slidably connected to the inner wall of the guide groove. The upper surface of the support block (53) is in contact with the bottom surface of the gravity plate (52).

3. A photovoltaic power generation protection device according to claim 2, characterized in that: A guide bar is fixed to the side wall of the support frame (51); the first inclined surface block (54) is slidably connected to the outer wall of the guide bar; the inclined surface of the first inclined surface block (54) is slidably connected to the support block (53); the collection box (55) is fixedly connected to the upper surface of the first inclined surface block (54); and the saw teeth (56) are fixedly connected to the upper surface of the sliding cover (4).

4. A photovoltaic power generation protection device according to claim 3, characterized in that: The gear (57) is rotatably connected to the side wall of the guide rail (1), the gear (57) is meshed with the sawtooth (56), the threaded rod (58) is fixedly connected to the side wall of the gear (57) close to the guide rail (1), the threaded rod (58) penetrates the guide rail (1) and is rotatably connected at the penetration point, the baffle (59) is slidably connected to the upper surface of the guide rail (1), the threaded rod (58) penetrates the baffle (59) and is threadedly connected at the penetration point.

5. A photovoltaic power generation protection device according to claim 1, characterized in that: The ice breaking device comprises an extrusion block (61), a fixed column (62), a first spring (63), a sliding block (64), a hinged plate (65), a disc (66), a drill bit (67), a hinged rod (68) and a snow shovel (69); the extrusion block (61) is fixedly connected to the side wall of the guide rail (1); the fixed column (62) is fixedly connected to the side wall of the sliding cover (4); the fixed column (62) passes through the sliding block (64) and is slidably connected at the penetration point.

6. A photovoltaic power generation protection device according to claim 5, characterized in that: The first spring (63) is fixedly connected to the bottom surface of the sliding block (64); one end of the first spring (63) away from the sliding block (64) is fixedly connected to the side wall of the sliding cover (4); a first fixing rod is fixed to the side wall of the sliding block (64); the first fixing rod passes through one end of the hinged plate (65) and is rotatably connected at the penetration point; the disc (66) is rotatably connected to the front surface of the sliding cover (4).

7. A photovoltaic power generation protection device according to claim 6, characterized in that: A second fixing rod is fixed on the front side of the circular disc (66), and the second fixing rod passes through the other end of the hinged plate (65) and is rotatably connected at the penetration point. The drill bit (67) is fixedly connected to the front side of the circular disc (66), one end of the hinged rod (68) is hinged to the side wall of the circular disc (66), the snow shoveling plate (69) is hinged to the front side of the sliding cover (4), and the other end of the hinged rod (68) is hinged to the side wall of the snow shoveling plate (69).

8. A photovoltaic power generation protection device according to claim 1, characterized in that: The hinge device comprises a second inclined block (71), a limiting rod (72), a limiting block (73), a second spring (74), a sliding block (75) and a limiting plate (76); the second inclined block (71) is fixedly connected to the front side of the sliding cover (4); and the limiting rod (72) is fixedly connected to the side wall of the base (2) away from one end of the connecting rod.

9. A photovoltaic power generation protection device according to claim 8, characterized in that: The limiting rod (72) passes through the limiting block (73) and is rotatably connected at the penetration point; the bottom end of the second spring (74) is fixedly connected to the upper surface of the limiting block (73); the sliding block (75) is fixedly connected to the upper end of the second spring (74); the limiting plate (76) is fixedly connected to the side wall of the guide rail (1); and the upper surface of the sliding block (75) and the bottom surface of the limiting plate (76) are slidably connected.

Images