Foldable photovoltaic frame

Abstract

The application discloses a foldable photovoltaic frame, which comprises a bottom frame, a pair of opposite slide rails hinged to the bottom frame and supported on the bottom frame through supporting springs, and a slider arranged on the slide rail; a lifting frame comprising a scissor fork support and a driving member; and a sensor arranged below one of the slide rails, wherein the sensor is a laser ranging sensor or a contact sensor, so that when the scissor fork support rotates towards the sensor side under the action of wind, the laser ranging sensor senses the wind force by sensing the displacement change of the slide rail, and the contact sensor senses the wind force by sensing the displacement between the contact sensor and the slide rail. The foldable photovoltaic frame can utilize the vertical space when the photovoltaic panel is unfolded, maximize the utilization of sunlight for power generation, and sense the wind force, so that the photovoltaic frame can be stored according to the wind force, thereby avoiding the photovoltaic frame from being blown down.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic installation equipment. More specifically, this invention relates to a foldable photovoltaic frame. Background Technology

[0002] To adapt to the installation needs of narrow spaces such as rooftops, and to improve the power generation efficiency and safety of photovoltaic systems, traditional fixed photovoltaic frames occupy a large area. When installed in space-constrained locations like rooftops, the number of frames that can be installed is limited, thus limiting the power output. To fully utilize vertical space, various photovoltaic frames that can utilize vertical space have been invented in the prior art. For example, patent application number 202011340751.X discloses a liftable photovoltaic folding lifting system. This system features a first and second sliding groove on both sides of the base, which are parallel and of the same size. A first and second lifting rod intersects and are rotatably connected by a shaft. The solar panel is connected to the first lifting rod on both sides. Multiple first and second lifting rods are provided, with the ends of every two first and second lifting rods movably connected for easy use. This allows the solar panel to be configured as a multi-layer structure. However, in the above design, the support structure for installing the photovoltaic panel lacks a wind-sensing structure, making it susceptible to being blown over by strong winds. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide a foldable photovoltaic frame that allows the photovoltaic panels to utilize vertical space to maximize the use of sunlight for power generation when unfolded, while also being able to sense the wind force in windy weather and activate the drive mechanism to control the photovoltaic frame to fold and retract based on the wind force, so as to prevent the photovoltaic frame from being blown over.

[0004] To achieve these objectives and other advantages according to the present invention, a foldable photovoltaic frame is provided, comprising:

[0005] The bottom frame is a groove-shaped structure with an open top. A pair of opposing slide rails are hinged to the bottom frame, and both slide rails are supported on the bottom frame by support springs. The slide rails are equipped with sliders.

[0006] The lifting frame includes a scissor fork bracket and a drive unit. One end of the bottom of the scissor fork bracket along the length of the slide rail is hinged to two sliders, and the other end is hinged to the bottom frame, so that the drive unit can drive the scissor fork bracket to unfold / fold.

[0007] A sensor, which is located below one of the slide rails, is either a laser rangefinder or a contact sensor. When the scissor bracket rotates toward the sensor side under the action of wind, the laser rangefinder senses the wind force by detecting the displacement change of the slide rail, and the contact sensor senses the wind force by sensing the displacement between itself and the slide rail.

[0008] Preferably, it also includes a pair of mounting plates and two pairs of limiting rods, with one pair of mounting plates, two pairs of limiting rods, and one pair of slide rails corresponding one-to-one. The mounting plate includes a vertical plate and a base plate located at the bottom of the vertical plate. The middle part of the vertical plate is hinged to the bottom frame. The vertical plate rotates in the vertical plane. The slide rail is located on the upper part of the corresponding vertical plate to be hinged to the bottom frame 1 through the vertical plate. Both ends of the vertical plate are provided with strip-shaped or arc-shaped limiting holes. Each pair of limiting rods corresponds one-to-one with a pair of limiting holes on the corresponding vertical plate. One end of the limiting rod is connected to the bottom frame, and the other end passes through the corresponding limiting hole, so that the vertical plate moves along a set trajectory. There are two pairs of support springs, with each pair of support springs corresponding to a pair of base plates. Each pair of support springs is symmetrically arranged below the corresponding base plate. There is one pair of sensors, with each pair of sensors symmetrically arranged below the base plate on the side of the corresponding slide rail.

[0009] Preferably, the scissor fork bracket includes a pair of side frame assemblies, each side frame assembly including multiple scissor forks that are hinged sequentially from top to bottom. Each scissor fork is two connecting rods that are hinged in the middle. The multiple scissor forks of a pair of side frame assemblies correspond one-to-one. A photovoltaic panel installation space is formed between any pair of corresponding connecting rods. One end of the lowermost scissor fork in each side frame assembly is hinged to the slider, and the other end is hinged to the bottom frame.

[0010] The drive unit includes a motor, a hydraulic pump, a battery, and at least one pair of hydraulic cylinders. The battery is connected to the motor, which is located within the bottom frame. The drive end of the motor is connected to the hydraulic pump, which is connected to the hydraulic cylinders to provide high-pressure hydraulic oil. The hydraulic cylinders are mounted on a pair of side frame assemblies. The fixed end of each hydraulic cylinder is hinged to one of the connecting rods on that side, and the telescopic end is hinged to another connecting rod located above and parallel to that connecting rod.

[0011] Preferably, it also includes a controller, which is connected to the drive unit and the sensor;

[0012] When the sensor is a laser rangefinder, after the laser rangefinder senses that the displacement change of the slide rail hinged to the bottom frame reaches a set value, the laser rangefinder transmits the displacement change to the controller, and the controller controls the drive component to fold the scissor fork bracket.

[0013] When the sensor is a contact sensor, after the contact sensor senses that the displacement between itself and the slide rail hinged to the bottom frame reaches a set value, the contact sensor transmits the displacement to the controller, and the controller controls the drive to fold the scissor fork bracket.

[0014] Preferably, it also includes a support plate, one end of which is connected to the bottom frame and the other end is suspended inside the protective box. The support spring is provided on the support plate, and the height of the support plate is adjustable. The sensor is provided on the support plate. The sensor is a contact sensor, and the position of the sensor on the support plate in the horizontal direction or the height in the vertical direction is adjustable.

[0015] Preferably, it also includes a protective box with an open top, a lifting plate slidably disposed within the protective box, and a power component for driving the lifting plate to rise and fall; the bottom frame is disposed on the lifting plate, and a pair of push rods are provided at the bottom of the lifting plate; it also includes a pair of baffle mechanisms symmetrically disposed on the protective box, with each pair of push rods corresponding to a pair of baffle mechanisms, each baffle mechanism including:

[0016] A baffle, which is rotatably mounted on the protective box;

[0017] A pressure-rebound rotating assembly is connected to the baffle, and the pressure-rebound rotating assembly is located below the corresponding push rod so that when the push rod descends, it applies pressure to the pressure-rebound rotating assembly, causing the baffle to rotate.

[0018] When a pair of baffles rotates to a horizontal position above the opening of the protective box, the pair of baffles abut against each other to form a protective plate.

[0019] Preferably, the pressure-bearing rotational rebound assembly includes:

[0020] A rotating rod is located below the lifting plate. Both ends of the rotating rod extend out of the protective box. Each of the two extended ends of the rotating rod is connected to a vertical rod, and the top of the pair of vertical rods is connected to a corresponding baffle.

[0021] A diagonal rod, one end of which is mounted on the rotating rod and the other end of which is suspended inside the protective box, is provided with a limiting groove that is adapted to the bottom of the push rod;

[0022] A tension spring, one end of which is connected to the diagonal rod and the other end of which is connected to the bottom wall of the protective box;

[0023] When the tension spring is in its natural state, a pair of baffles are positioned on both sides of the protective box to open the top of the protective box, and the ends of a pair of diagonal rods suspended inside the protective box are close to each other; when the scissor fork bracket is folded, the power component drives the lifting plate to descend until the push rod extends into the corresponding limiting slide groove. As the lifting plate continues to descend, the push rod slides along the limiting slide groove and pushes the rotating rod to rotate, thereby causing the pair of baffles to rotate to abut.

[0024] Preferably, a sealing layer is applied to the contact surfaces of both baffles.

[0025] Preferably, the protective plate has four sides that slope downwards to form a gourd-like structure.

[0026] The present invention has at least the following beneficial effects:

[0027] 1. By designing a bottom frame, scissor fork bracket, and driving component, a foldable photovoltaic frame is provided. In use, the driving component drives the scissor fork bracket to unfold, allowing the photovoltaic panel to utilize vertical space and maximize the use of sunlight for power generation. At the same time, it can reduce the footprint and facilitate installation in narrow areas. When it is necessary to store the photovoltaic frame, the driving component drives the scissor fork bracket to fold, which can easily fold and store the photovoltaic frame on the bottom frame, minimizing the vertical space occupied by the photovoltaic frame, making it easy to carry and store, and highly practical.

[0028] 2. By designing sensors and supporting springs, the photovoltaic frame can be automatically retracted based on external wind force, preventing it from tipping over in strong winds. Specifically, when the photovoltaic frame is compressed by wind in a strong wind, it rotates towards the sensor, compressing the supporting spring. Simultaneously, the sensor detects the displacement change (when the sensor is a laser rangefinder, it can directly sense the displacement change of the first slide rail; when the displacement change reaches a set value, it can work with an external controller to transmit the displacement change to the controller, which then controls the drive unit to fold the scissor bracket for retraction; when the sensor is a contact sensor, when it senses the displacement change between the first slide rail and the sensor reaching a set value, it transmits the displacement change to the controller, which then controls the drive unit to fold the scissor bracket for retraction).

[0029] 3. By designing a protective box, lifting plate, power component, and baffle mechanism, after the scissor fork bracket is stored on the bottom frame, the lifting plate is driven to descend by the power component. When the lifting plate descends until the entire photovoltaic frame is retracted into the protective box, the lifting plate continues to descend. At this time, the push rod pushes the baffle to rotate, causing a pair of baffles to rotate and merge to form a protective plate. The protective plate is suspended at the top opening of the protective box, which can shield from rain and snow, protect the photovoltaic frame inside the protective box, and minimize the continuous impact of severe weather on the photovoltaic panels and photovoltaic frame, thus improving the protection of the photovoltaic frame.

[0030] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the foldable photovoltaic frame according to one of the technical solutions of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the foldable photovoltaic frame with photovoltaic panels installed according to one of the technical solutions of the present invention;

[0033] Figure 3 This is a schematic diagram of the bottom frame structure according to one of the technical solutions of the present invention;

[0034] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 This is a front view of the connection structure of the vertical plate, base plate, support plate, a pair of sensors, and a pair of support springs according to one of the technical solutions of the present invention.

[0036] Figure 6 This is a schematic diagram of the structure of the photovoltaic bracket housed in the protective box according to one of the technical solutions of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the photovoltaic bracket extending out of the protective box according to one of the technical solutions of the present invention;

[0038] Figure 8 This is a front view of the protective box and baffle structure according to one of the technical solutions of the present invention (photovoltaic bracket retracted into the protective box);

[0039] Figure 9 This is a front view of the protective box and baffle structure according to one of the technical solutions of the present invention (the photovoltaic bracket extends out of the protective box);

[0040] Figure 10 This is a schematic diagram of the protective box and power component according to one of the technical solutions of the present invention.

[0041] Reference numerals: 100-Photovoltaic bracket; 1-Bottom frame; 2-Base plate; 3-Motor; 4-Hydraulic pump; 5-Hydraulic cylinder; 6-Scissor fork bracket; 601-Connecting rod; 7-Photovoltaic panel; 8-Horizontal bar; 9-Vertical plate; 10-Slide rail; 11-Limiting hole; 12-Limiting rod; 13-Support spring; 14-Contact sensor; 15-Support plate; 17-Photovoltaic panel installation space; 18-Battery; 19-Slider; 20-Protective box; 21-Tension spring; 22-Lifting plate; 24-Diagonal bar; 25-Push rod; 26-Vertical bar; 27-Baffle; 28-Rotating rod; 30-Power component. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0043] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0044] like Figure 1-10 As shown, the present invention provides a foldable photovoltaic frame, comprising:

[0045] The bottom frame 1 is a groove-shaped structure with an open top. A pair of opposing slide rails 10 are hinged on the bottom frame 1, and both slide rails 10 are supported on the bottom frame 1 by support springs 13. The slide rails 10 are provided with sliders 19.

[0046] The lifting frame includes a scissor fork bracket 6 and a driving component. One end of the bottom of the scissor fork bracket 6 along the length of the slide rail 10 is hinged to two sliders 19, and the other end is hinged to the bottom frame 1, so that the driving component can drive the scissor fork bracket 6 to unfold / fold.

[0047] A sensor is located below one of the slide rails 10. The sensor is either a laser rangefinder or a contact sensor 14. When the scissor fork bracket 6 rotates toward the sensor side under the action of wind, the laser rangefinder senses the wind force by sensing the displacement change of the slide rail 10, and the contact sensor 14 senses the wind force by sensing the displacement between itself and the slide rail 10.

[0048] In the above technical solution, the bottom frame 1 is a groove-shaped structure with an open top. In actual use, it can be made by welding multiple steel rods. A pair of opposing inner walls of the bottom frame 1 are respectively provided with a slide rail 10. Both slide rails 10 are hinged to the bottom frame and supported on the bottom frame 1 by a support spring 13. The specific connection method between the slide rail 10 and the bottom frame 1 can be: one end of the slide rail 10 is hinged to the inner wall of the bottom frame 1 to allow the slide rail 10 to rotate in the vertical plane, and a support plate 15 is provided below the other end. One end of the support plate 15 is connected to the inner wall of the bottom frame 1, and the other end is suspended inside the bottom frame 1. The support spring 13 supports the support plate 15 and the slide rail 10. A slider 19 is slidably provided in each pair of slide rails 10.

[0049] The lifting frame is an existing scissor fork lifting mechanism, which includes a scissor fork bracket 6 and a driving component for unfolding or folding the scissor fork bracket 6. The scissor fork bracket 6 includes a pair of opposing side frame assemblies. Each side frame assembly includes multiple scissor forks arranged sequentially from top to bottom. Each scissor fork is two connecting rods 601 hinged together in the middle. The ends of adjacent scissor forks are hinged to each other to allow the side frame assembly to be folded / unfolded. The multiple scissor forks of a pair of side frame assemblies correspond one-to-one. In any pair of corresponding scissor forks, the two parallel connecting rods 601 form a photovoltaic panel installation space 17. The lowest scissor fork in each side frame assembly is the lower scissor fork. A pair of lower scissor forks corresponds to a pair of sliders 19. One end of the bottom of the lower scissor fork is hinged to the corresponding slider 19, and the other end is hinged to the inner wall of the bottom frame 1. Specifically, the specific way in which the lower scissor fork is hinged to the inner wall of the bottom frame 1 can be... Therefore: A crossbar 8 is fixedly connected between the ends of the two lower scissor forks away from the slider 19. The two ends of the crossbar 8 are rotatably connected to the inner wall of the bottom frame 1, or a crossbar 8 is fixedly connected between the inner wall of the bottom frame 1 away from the slider 19, and the ends of the two lower scissor forks away from the slider 19 are rotatably connected to the crossbar 8. When the two ends of the bottom of the two lower scissor forks on the same side are respectively hinged to the corresponding slider 19, and the two ends on the other side are respectively hinged to the bottom frame 1, at this time, due to the gravity of the scissor fork bracket 6, the support spring 13 plays a supporting role, and the slide rail 10 is supported on the bottom frame 1. It should be noted that the attached figure only shows the structure of the slide rail 10 on the sensor side that is hinged to the bottom frame 1 and supported on the bottom frame 1 by the support spring 13. The structure of the other slide rail 10 that is hinged to the bottom frame 1 and supported on the bottom frame 1 by the support spring 13 is not fully shown. The attached figure is only a schematic diagram of the principle.

[0050] In actual use, in order to ensure the stable installation of the photovoltaic panel 7, an installation groove plate can be set between the ends of the two connecting rods 601 that form the photovoltaic panel installation space 17. A pair of connecting rods 601 and a pair of installation groove plates enclose a square installation space. This installation space is adapted to the size of the photovoltaic panel 7 to facilitate the installation of the photovoltaic panel 7. At the same time, in order to facilitate the storage and use of the photovoltaic panel 7, the photovoltaic panel 7 is installed on multiple photovoltaic panel installation spaces 17 that are spaced apart from each other and parallel to each other. The photovoltaic panel 7 is installed according to the actual situation.

[0051] A sensor is located below one of the slide rails 10. This slide rail 10 is a detection slide rail 10. The sensor can be mounted on the support plate 15. The sensor can be a laser rangefinder or a contact sensor 14. During use, if the lifting frame is in a windy environment, the lifting frame will rotate towards the sensor under the action of the wind. If the sensor is a laser rangefinder, it can sense the displacement change of the detection slide rail 10 and sense the wind force by measuring the magnitude of the displacement change. Then, it can selectively activate the drive mechanism to retract the scissor fork bracket. If the sensor is a contact sensor 14, as the detection slide rail 10 approaches the sensor, the sensor senses the wind force by measuring the displacement between the detection slide rail 10 and the sensor. Then, it can selectively activate the drive mechanism to retract the lifting frame. In actual use, there are several options for the contact sensor 14, such as an inductive sensor of brand IFM, model IGW200.

[0052] In this technical solution, when in use, the lifting frame is driven by the drive component to unfold and install the photovoltaic panel 7 in the photovoltaic panel installation space 17. If there is a strong wind, the drive component is selectively activated to retract the lifting frame by sensing the wind force through the sensor.

[0053] The beneficial effects of this technical solution are as follows: By designing the bottom frame 1, scissor fork bracket 6, driving component, sensor, and support spring 13, a foldable photovoltaic frame is provided. This allows the photovoltaic panel 7 to utilize vertical space when unfolded, maximizing the use of sunlight for power generation while reducing the footprint and facilitating installation in narrow areas. Furthermore, by sensing wind force through the sensor, the driving component can be selectively activated to retract the lifting frame, preventing it from being blown over in strong winds. In addition, compared to directly using existing anemometers for wind sensing, firstly, anemometers have relatively complex programming; this invention uses laser rangefinders or contact sensors to achieve wind sensing, with simpler programming and easier maintenance. It is simple to use. Secondly, the cost of anemometers is relatively expensive, while the sensor of this invention is relatively low-cost and more practical. In addition, anemometers need to be fully exposed to the external environment during use, making them more susceptible to erosion from external environmental factors such as rain, snow, and sandstorms, which can easily damage them. Mechanical anemometers, in particular, have rotating parts that are subject to wear and tear, are easily damaged by wind and sand, and are also susceptible to interference from freezing, rain, and snow, which reduces their sensitivity. The sensor of this invention is installed in the bottom frame, which is a groove-like body with an open top. In actual use, the bottom frame can be installed in a protective box or the side walls of the bottom frame can be made without any perforations (the attached figure is just a schematic diagram). This can better protect the sensor and ensure its sensitivity.

[0054] In another technical solution, a pair of mounting plates and two pairs of limiting rods 12 are also included. The pair of mounting plates, the two pairs of limiting rods 12, and the pair of slide rails 10 correspond one-to-one. The mounting plate includes a vertical plate 9 and a base plate 2 located at the bottom of the vertical plate. The middle part of the vertical plate 9 is hinged to the bottom frame 1. The vertical plate 9 can rotate in the vertical plane. The slide rail 10 is located on the upper part of the corresponding vertical plate 9 so as to be hinged to the bottom frame 1 through the vertical plate 9. Both ends of the vertical plate 9 are provided with strip-shaped or arc-shaped limiting rods. Position holes 11, each pair of limiting rods 12 corresponds one-to-one with a pair of limiting holes 11 on the corresponding vertical plate. One end of the limiting rod 12 is connected to the bottom frame 1, and the other end passes through the corresponding limiting hole 11, so that the vertical plate 9 moves along the set trajectory; there are two pairs of support springs 13, and the two pairs of support springs 13 correspond to a pair of bottom plates 2. Each pair of support springs 13 is symmetrically arranged below the corresponding bottom plate 2. There is a pair of sensors, and a pair of sensors are symmetrically arranged below the bottom plate 2 on the side of the corresponding slide rail 10.

[0055] In the above technical solution, a pair of mounting plates are provided opposite each other on the inner wall of the bottom frame 1. Each mounting plate includes a vertical plate 9 and a base plate 2 at the bottom of the vertical plate 9. The middle part of the vertical plate 9 is hinged to the inner wall of the bottom frame 1. The upper part of the vertical plate 9 is provided with the slide rail 10. The bottom of the vertical plate 9 is provided with the base plate 2, and the vertical plate 9 and the base plate 2 form an L-shaped plate structure (in actual use, an easily procurable C-shaped plate can also be directly selected). A support plate 15 is provided below each base plate 2. A pair of support springs 13 are provided between the support plate 15 and the base plate 2. One end of the support spring 13 is connected to the base plate 2, and the other end is connected to the support plate 15. A pair of sensors are provided between a base plate 2 and the corresponding support plate 15. The pair of sensors are provided on the support plate 15, and the pair of sensors are symmetrically arranged below the base plate 2. Each vertical plate 9 has a limiting hole 11 at both ends along its horizontal direction.

[0056] The bottom frame 1 is provided with two pairs of opposing limiting rods 12, and the two pairs of limiting rods 12 correspond to a pair of vertical plates 9. Each pair of limiting rods 12 corresponds one-to-one with a pair of limiting holes 11 on the corresponding vertical plate 9. One end of the limiting rod 12 is provided on the inner wall of the bottom frame 1, and the other end passes through the corresponding limiting hole 11. The limiting hole 11 is strip-shaped or arc-shaped to accommodate the rotation of the vertical plate 9 in the vertical plane and to allow the vertical plate 9 to move within the set trajectory, so as to prevent the vertical plate 9 from derailing. In actual use, when designing the limiting hole 11, the size of the limiting hole needs to be designed according to the actual situation so that when the wind blows and drives the slide rail 10 to rotate, the limiting rod can move along the limiting hole.

[0057] In this technical solution, during use, the limiting rod 12 and the limiting hole 11 cooperate to move the vertical plate 9 along a set trajectory, thereby driving the lifting frame to rotate relatively stably. Simultaneously, by setting two pairs of support springs and one pair of sensors, wind from multiple directions (such as...) can be detected at the same time. Figure 2 In the middle, it can detect wind passing through the scissor fork bracket from left to right or from right to left, making it more practical.

[0058] In another technical solution, the driving component includes a motor 3, a hydraulic pump 4, a battery 18, and at least one pair of hydraulic cylinders 5. The battery 18 is connected to the motor 3. The motor 3 is located inside the bottom frame 1. Both the motor 3 and the hydraulic pump 4 are located inside the bottom frame 1. The driving end of the motor 3 is connected to the hydraulic pump 4 to drive the hydraulic pump 4. The pumping end of the hydraulic pump 4 is connected to the hydraulic cylinder 5 to provide high-pressure hydraulic oil to the hydraulic cylinder 5. The hydraulic cylinders 5 are respectively installed on a pair of side frame assemblies. The fixed end of each hydraulic cylinder 5 is hinged to one of the connecting rods 601 on that side, and the telescopic end is hinged to another connecting rod 601 located above and parallel to the connecting rod 601.

[0059] In the above technical solution, specifically, the connecting rod 601 hinged to the fixed end of the hydraulic cylinder 5 is the first connecting rod. A first hinge rod is vertically connected to the side wall of the first connecting rod facing the other side of the frame assembly. The fixed end of the hydraulic cylinder 5 is rotatably connected to the first hinge rod so that the hydraulic cylinder 5 rotates about the first hinge rod as its rotation center axis. Another connecting rod located above and parallel to the first connecting rod is the second connecting rod. The telescopic end of the hydraulic cylinder 5 is hinged to the second connecting rod. Specifically, a second hinge rod is vertically connected to the side wall of the second connecting rod facing the other side of the frame assembly. The telescopic end is rotatably connected to the second hinge rod so that the hydraulic cylinder 5 rotates about the second hinge rod as the rotation center axis; all the above-mentioned components and the connection structures between the components are existing and very mature structures, and can be selected and connected with reference to existing technologies. More specific connections will not be elaborated in detail; it should be noted that in actual use, in order to avoid motion interference between the photovoltaic panel 7 and the hydraulic cylinder 5, and to better protect and install the photovoltaic panel 7, when installing the photovoltaic panel 7, the photovoltaic panel 7 is not installed in the photovoltaic panel installation space 17 where the connecting rod 601 of the hydraulic cylinder 5 is located. Other photovoltaic panel installation spaces 17 are selected to install the photovoltaic panel 7 (such as... Figure 2 (as shown);

[0060] In the above technical solution, during use, the storage battery 18 can be connected to the photovoltaic panel 7. The photovoltaic panel 7 absorbs solar energy to charge the storage battery 18, and the storage battery 18 supplies power to the motor 3. The motor 3 drives the hydraulic pump 4, and the hydraulic pump 4 drives the hydraulic cylinder 5 to extend and retract, thereby driving the scissor fork bracket 6 to unfold / fold. The beneficial effect of adopting this technical solution is that by setting up the storage battery 18, hydraulic pump 4, motor 3, and hydraulic cylinder 5, a structure for the drive component is provided, which is easy to procure and simple to install, and is green and environmentally friendly.

[0061] In another technical solution, a controller is also included, which is connected to the drive unit and the sensor;

[0062] When the sensor is a laser rangefinder, after the laser rangefinder senses that the displacement change of the slide rail 10 hinged to the bottom frame 1 reaches the set value, the laser rangefinder transmits the displacement change to the controller, and the controller controls the drive to fold the scissor fork bracket 6.

[0063] When the sensor is a contact sensor 14, after the contact sensor 14 senses that the displacement between itself and the slide rail 10 hinged to the bottom frame 1 reaches a set value, the contact sensor 14 transmits the displacement to the controller, and the controller controls the drive to fold the scissor fork bracket 6.

[0064] The beneficial effect of adopting this technical solution is that by setting up a controller, in conjunction with sensors and driving components, the scissor fork bracket 6 can be automatically stored, making it more convenient to use.

[0065] In another technical solution, a support plate 15 is also included. One end of the support plate 15 is connected to the bottom frame 1, and the other end is suspended inside the bottom frame 1. The support spring 13 is provided on the support plate 15, and the height of the support plate 15 is adjustable. The sensor is provided on the support plate 15. The sensor is a contact sensor 14, and the position of the sensor on the support plate 15 in the horizontal direction or the height in the vertical direction is adjustable.

[0066] In the above technical solution, the height of the support plate 15 can be adjusted by sliding the support plate 15 to the inner wall of the bottom frame 1. A fixed plate is vertically provided on the support plate 15, and a locking bolt is screwed onto the fixed plate. When the height of the support plate 15 is adjusted to the required height, the locking bolt is screwed toward the bottom frame 1 until the locking bolt abuts against the inner wall of the bottom frame 1. At this time, the support plate 15 is fixed relative to the bottom frame 1. The sensor can be adjusted horizontally on the support plate 15. For example, the sensor can be detachably connected to the support plate 15, so that the sensor can be installed at different positions on the support plate 15. The height of the sensor can be adjusted vertically, and the method can be set with reference to the height adjustment method of the support plate 15.

[0067] In this technical solution, during use, by adjusting the height of the support plate 15 and the position of the sensor in the horizontal or vertical direction, the compression degree of the support spring 13 can be adjusted. Thus, the wind force sensing level of the photovoltaic frame can be designed according to the requirements. If the compression degree of the support spring 13 is increased, the scissor fork bracket requires greater wind force to rotate. Therefore, the wind sensing level of the photovoltaic frame can be set according to the actual situation, and the photovoltaic frame can be automatically retracted under the set wind force.

[0068] In another technical solution, the system further includes a protective box 20 with an open top, a lifting plate 22 slidably disposed within the protective box 20, and a power component 30 for driving the lifting plate 22 to rise and fall. The bottom frame 1 is disposed on the lifting plate 22, and a pair of push rods 25 are provided at the bottom of the lifting plate 22. The system also includes a pair of baffle mechanisms symmetrically disposed on the protective box 20, with each pair of push rods 25 corresponding to a pair of baffle mechanisms. Each baffle mechanism includes:

[0069] Baffle 27, which is rotatably mounted on the protective box 20;

[0070] A pressure-rebound rotating assembly is connected to the baffle 27 and is located below the corresponding push rod 25 so that when the push rod 25 descends, it applies pressure to the pressure-rebound rotating assembly, causing the baffle 27 to rotate.

[0071] When a pair of baffles 27 rotate to be horizontally suspended above the opening of the protective box 20, the pair of baffles 27 abut against each other to form a protective plate;

[0072] In the above technical solution, the overall structure of the stored lifting bracket and the bottom frame 1 is referred to as the photovoltaic bracket 100; the protective box 20 has an open top, and the protective box 20 is equipped with a lifting plate 22 and a power component 30 for driving the lifting plate 22 to rise and fall. The power component 30 can be a hydraulic rod or a scissor lift mechanism. Figure 10 The diagram illustrates the structure of the scissor lift mechanism. For reference, one can refer to the existing scissor lift / lifting platform structures, which are already very mature and will not be elaborated upon here. Alternatively, the power component 30 can include a screw and a limiting post. One end of the lifting plate 22 is screwed onto the screw, and the other end of the lifting plate 22 has a through hole with a diameter slightly larger than the limiting post, so that the other end of the lifting plate 22 passes through the limiting post to restrict the rotation of the lifting plate 22. A drive motor is embedded in the bottom wall of the protective box 20, and the output end of the drive motor is coaxially connected to the screw. When the drive motor starts, it drives the lifting plate 22 to rise and fall (not shown in the above diagram of the power component). A pair of push rods 25 are provided at the bottom of the lifting plate 22 to rise and fall with the lifting plate 22.

[0073] The protective box 20 is provided with a pair of baffle mechanisms, each baffle mechanism including a baffle 27 and a pressure-returning component. The pair of baffles 27 are symmetrically arranged at both ends of the protective box 20 and are hinged to the protective box 20. The pair of baffles 27 rotate in the vertical plane. When the pair of baffles 27 rotate to abut each other, the pair of baffles 27 form a protective plate to cover the top opening of the protective box 20. Each baffle 27 is provided with a pressure-returning component. A pair of pressure-returning components corresponds to a pair of push rods 25. When the push rods 25 apply pressure to the corresponding pressure-returning component, the pressure-returning component rotates under pressure, causing the pair of baffles 27 to rotate to abut each other. At this time, the pair of baffles 27 merge to form a protective plate. When the pressure-returning component loses external pressure, the pressure-returning component returns to its initial state, and the top opening of the protective box 20 opens.

[0074] The beneficial effects of this technical solution are that by setting up a protective box 20, a lifting plate 22, a power component 30, a push rod 25, a baffle 27, and a pressure-rebound rotation assembly, a protective mechanism is provided. After the scissor fork bracket 6 is stored on the bottom frame 1, the lifting plate 22 is driven to descend by the power component 30. When the lifting plate 22 descends until the photovoltaic bracket 100 is retracted into the protective box 20, the lifting plate 22 continues to descend. At this time, the push rod 25 pushes the baffle 27 to rotate, causing a pair of baffles 27 to rotate and merge to form a protective plate. The protective plate is suspended at the top opening of the protective box 20, which can shield from rain and snow, protect the photovoltaic bracket 100 inside the protective box 20, and minimize the continuous impact of severe weather on the photovoltaic panel 7 and the photovoltaic bracket 100, thereby improving the protection of the photovoltaic bracket 100.

[0075] In another technical solution, the pressure-bearing rotational rebound assembly includes:

[0076] A rotating rod 28 is located below the lifting plate 22. Both ends of the rotating rod 28 extend out of the protective box 20. Each of the two extended ends of the rotating rod 28 is connected to a vertical rod 26. The top of the pair of vertical rods 26 is connected to a corresponding baffle 27.

[0077] The inclined rod 24 has one end on the rotating rod 28 and the other end suspended inside the protective box 20. The inclined rod 24 is provided with a limiting groove that matches the bottom of the push rod 25.

[0078] A tension spring 21, one end of which is connected to the inclined rod 24 and the other end of which is connected to the inner bottom wall of the protective box 20;

[0079] When the tension spring 21 is in its natural state, a pair of baffles 27 are respectively disposed on both sides of the protective box 20 to open the opening at the top of the protective box 20, and the ends of a pair of diagonal rods 24 suspended inside the protective box 20 are close to each other; when the scissor fork bracket 6 is folded, the power component 30 drives the lifting plate 22 to descend until the push rod 25 extends into the corresponding limiting slide groove. As the lifting plate 22 continues to descend, the push rod 25 slides along the limiting slide groove and pushes the rotating rod 28 to rotate, thereby driving the pair of baffles 27 to rotate to abut;

[0080] In the above technical solution, the rotating rod 28 is rotatably mounted inside the protective box 20, and both ends of the rotating rod 28 rotatably extend out of the protective box 20. A vertical rod 26 is provided at each of the two outwardly extending ends of the protective box 20. The top of the pair of vertical rods 26 is connected to the baffle 27. The pair of rotating rods 28 are arranged in parallel, and each rotating rod 28 is provided with a diagonal rod 24. The diagonal rod 24 is provided with a limiting groove, which is adapted to the bottom of the push rod 25 so that the push rod 25 extends into the limiting groove and moves along the limiting groove. The slide moves and eventually pushes the rotating rod 28. The inclined rod 24 is connected to the inner bottom wall of the protective box 20 through the tension spring 21. That is, one end of the tension spring 21 is connected to the inner bottom wall of the protective box 20, and the other end is connected to the inclined rod 24. In this way, after the inclined rod 24 loses external pressure, under the action of the tension spring 21, the tension spring 21 pulls the rotating rod 28 back to the initial state. At this time, a pair of baffles 27 separate and rotate to both sides of the protective box 20, which can open the top opening of the protective box 20 to facilitate the extension of the bottom frame 1.

[0081] In actual use, to improve automation and ease of use, a sensor can be installed inside the detection slide rail 10. This sensor is referred to as the second sensor. The controller is connected to the second sensor and the power component 30 respectively. The second sensor can also be a laser rangefinder or a contact sensor. By sensing the displacement change of the slider 19 or the displacement between the slider 19 and the second sensor, it cooperates with the controller to control the power component 30 to lower the lifting plate 22, causing the lifting plate 22 to retract into the protective box 20. The position of the second sensor is set such that when the scissor fork bracket 6 is completely retracted on the bottom frame 1, the second sensor senses the displacement change of the slider 19 or the displacement between the slider 19 and the second sensor, and transmits the displacement change / displacement to the controller. The controller controls the power component 30 to lower the lifting plate 22.

[0082] The beneficial effect of adopting this technical solution is that by setting the rotating rod 28, the inclined rod 24, and the tension spring 21, a structure of a pressure-driven rotation and rebound assembly is provided, which can effectively pull the baffle 27 to rotate and can make the baffle 27 return to its initial state. The structure is simple, the materials are readily available, and it is highly practical.

[0083] In another technical solution, a sealing layer is applied to the contact surfaces of a pair of baffles 27. The beneficial effect of this technical solution is that, by designing the sealing layer, when a pair of baffles 27 contact, their joints are sealed, preventing rain and snow from entering the protective box 20 through the gaps at the joints.

[0084] In another technical solution, the four edges of the protective plate are all inclined downward to form a gourd-like structure; specifically, each baffle 27, except for the end that abuts against another baffle 27, has the remaining ends inclined downward, preferably bent downward so that a pair of baffles 27 form a gourd-like structure after being joined together. The size of the protective plate is designed to completely cover the top opening of the protective box 20, so as to minimize the entry of rain and snow from the top opening into the protective box 20 and improve the protection of the photovoltaic support 100 inside the protective box 20.

[0085] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the foldable photovoltaic frame of this invention will be readily apparent to those skilled in the art.

[0086] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A foldable photovoltaic frame, characterized in that, include: The bottom frame is a groove-shaped structure with an open top. A pair of opposing slide rails are hinged to the bottom frame, and both slide rails are supported on the bottom frame by support springs. The slide rails are equipped with sliders. The lifting frame includes a scissor fork bracket and a drive unit. One end of the bottom of the scissor fork bracket along the length of the slide rail is hinged to two sliders, and the other end is hinged to the bottom frame, so that the drive unit can drive the scissor fork bracket to unfold / fold. A sensor, which is located below one of the slide rails, is either a laser rangefinder or a contact sensor. When the scissor bracket rotates toward the sensor side under the action of wind, the laser rangefinder senses the wind force by sensing the displacement change of the slide rail, and the contact sensor senses the wind force by sensing the displacement between itself and the slide rail. It also includes a protective box with an open top, a lifting plate slidably disposed within the protective box, and a power component for driving the lifting plate to rise and fall. The bottom frame is disposed on the lifting plate, and a pair of push rods are provided at the bottom of the lifting plate. It also includes a pair of baffle mechanisms symmetrically disposed on the protective box, with each pair of push rods corresponding to a pair of baffle mechanisms. Each baffle mechanism includes: A baffle, which is rotatably mounted on the protective box; A pressure-rebound rotating assembly is connected to the baffle, and the pressure-rebound rotating assembly is located below the corresponding push rod so that when the push rod descends, it applies pressure to the pressure-rebound rotating assembly, causing the baffle to rotate. When a pair of baffles rotates to a horizontal position above the opening of the protective box, the pair of baffles abut against each other to form a protective plate. The pressure-rebound rotation assembly includes: A rotating rod is located below the lifting plate. Both ends of the rotating rod extend out of the protective box. Each of the two extended ends of the rotating rod is connected to a vertical rod, and the top of the pair of vertical rods is connected to a corresponding baffle. A diagonal rod, one end of which is mounted on the rotating rod and the other end of which is suspended inside the protective box, is provided with a limiting groove that is adapted to the bottom of the push rod; A tension spring, one end of which is connected to the diagonal rod and the other end of which is connected to the bottom wall of the protective box; When the tension spring is in its natural state, a pair of baffles are positioned on both sides of the protective box to open the top of the protective box, and the ends of a pair of diagonal rods suspended inside the protective box are close to each other; when the scissor fork bracket is folded, the power component drives the lifting plate to descend until the push rod extends into the corresponding limiting slide groove. As the lifting plate continues to descend, the push rod slides along the limiting slide groove and pushes the rotating rod to rotate, thereby causing the pair of baffles to rotate to abut.

2. The foldable photovoltaic frame as described in claim 1, characterized in that, It also includes a pair of mounting plates and two pairs of limiting rods, with each pair of mounting plates, two pairs of limiting rods, and a pair of slide rails corresponding to each other. The mounting plate includes a vertical plate and a base plate located at the bottom of the vertical plate. The middle part of the vertical plate is hinged to the bottom frame, and the vertical plate rotates in the vertical plane. The slide rail is located on the upper part of the corresponding vertical plate to be hinged to the bottom frame 1 through the vertical plate. Both ends of the vertical plate are provided with strip-shaped or arc-shaped limiting holes. Each pair of limiting rods corresponds to a pair of limiting holes on the corresponding vertical plate. One end of the limiting rod is connected to the bottom frame, and the other end passes through the corresponding limiting hole, so that the vertical plate moves along a set trajectory. There are two pairs of support springs, each pair corresponding to a pair of base plates. Each pair of support springs is symmetrically arranged below the corresponding base plate. There is one pair of sensors, each pair symmetrically arranged below the base plate on the side of the corresponding slide rail.

3. The foldable photovoltaic frame as described in claim 1, characterized in that, The scissor fork bracket includes a pair of side frame assemblies. Each side frame assembly includes multiple scissor forks that are hinged sequentially from top to bottom. Each scissor fork is a connecting rod that is hinged in the middle. The multiple scissor forks of a pair of side frame assemblies correspond one-to-one. A photovoltaic panel installation space is formed between any pair of corresponding connecting rods. One end of the scissor fork at the bottom of each side frame assembly is hinged to the slider, and the other end is hinged to the bottom frame. The drive unit includes a motor, a hydraulic pump, a battery, and at least one pair of hydraulic cylinders. The battery is connected to the motor, which is located within the bottom frame. The drive end of the motor is connected to the hydraulic pump to drive the hydraulic pump. The pump outlet end of the hydraulic pump is connected to the hydraulic cylinder to provide high-pressure hydraulic oil to the hydraulic cylinder. The hydraulic cylinders are respectively mounted on a pair of side frame assemblies. The fixed end of each hydraulic cylinder is hinged to one of the connecting rods on that side, and the telescopic end is hinged to another connecting rod located above and parallel to the connecting rod.

4. The foldable photovoltaic frame as described in claim 1, characterized in that, It also includes a controller, which is connected to the drive unit and the sensor; When the sensor is a laser rangefinder, after the laser rangefinder senses that the displacement change of the slide rail hinged to the bottom frame reaches a set value, the laser rangefinder transmits the displacement change to the controller, and the controller controls the drive component to fold the scissor fork bracket. When the sensor is a contact sensor, after the contact sensor senses that the displacement between itself and the slide rail hinged to the bottom frame reaches a set value, the contact sensor transmits the displacement to the controller, and the controller controls the drive to fold the scissor fork bracket.

5. The foldable photovoltaic frame as described in claim 1, characterized in that, It also includes a support plate, one end of which is connected to the bottom frame and the other end is suspended inside the bottom frame. The support spring is located on the support plate, and the sensor is located on the support plate. The height of the support plate is adjustable. The sensor is a contact sensor, and the position of the sensor on the support plate in the horizontal direction or the height in the vertical direction is adjustable.

6. The foldable photovoltaic frame as described in claim 1, characterized in that, A sealing layer is applied to the contact surfaces of both baffles.

7. The foldable photovoltaic frame as described in claim 6, characterized in that, The protective plate has four sides that slope downwards to form a gourd-like structure.

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