Angle-adjustable photovoltaic panel support device

By combining a bracket frame, a locking wheel interlocking device, a push rod, and a hand crank, and using the hand crank to drive the push rod, the problems of high operating costs and difficult maintenance of photovoltaic brackets that have not been effectively addressed in existing technologies are solved, and flexible adjustment of the photovoltaic panel angle and efficient utilization of sunlight are achieved.

CN223652197UActive Publication Date: 2025-12-09CHINA NUCLEAR IND HUAXING CONSTR
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Patent Information

Application Number
CN202422989444.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-12-09
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Traditional adjustable photovoltaic (PV) brackets rely on motors to adjust their angle, resulting in high operating costs and difficult maintenance.

Method used

The photovoltaic panel bracket angle is adjusted by using a combination of a bracket frame, a locking wheel interlocking device, a push rod, and a hand crank device. The hand crank device drives the push rod to move vertically, which in turn drives the locking wheel interlocking device to rotate around the axis.

Benefits of technology

It reduces the cost of using photovoltaic brackets, simplifies maintenance, improves the light utilization rate of photovoltaic panels, adapts to changes in solar altitude angle, and is easy to disassemble and reuse.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an angle-adjustable photovoltaic panel support device, which comprises a support frame, a lock wheel interlocking device, a support, a push rod and a crank handle device, the bottom of the support is supported, the top of the support is rotatably connected with the lock wheel interlocking device, and the support frame is fixed at the top of the lock wheel interlocking device. The side wall of the support is vertically and slidably provided with a push rod, the upper end of the push rod is provided with a transverse upper sliding way, the second limiting rod is slidably arranged in the upper sliding way, the lower end of the push rod is connected with a crank handle device, and the crank handle device is used for driving the push rod to move vertically. The push rod is used for pushing the second limiting rod to drive the lock wheel interlocking device to rotate around the rotating shaft. According to the utility model, the push rod is driven by the crank handle device to move vertically, the second limiting rod is pushed to swing around the rotating shaft at the top of the support along the upper slideway, the lock wheel interlocking device is driven to rotate around the rotating shaft, and angle adjustment of the support frame provided with the photovoltaic panel is realized.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic panel support technical field, concretely relates to an adjustable angle formula photovoltaic panel support device. BACKGROUND

[0002] In large photovoltaic panel installation engineering, the manufacturing and installation engineering quantity of photovoltaic panel support is relatively large.The traditional method is: through the position of measuring solar altitude angle, the best angle of illumination is determined.But, this process because cannot be synchronized with solar altitude angle, causes photovoltaic panel to be unable to absorb enough sunlight and causes the utilization rate of photovoltaic panel to reduce.

[0003] However, the traditional adjustable photovoltaic support adopts motor drive to adjust the use angle of photovoltaic support, but because the device needs to be in outdoor for a long time and faces complex natural environment for a long time, the motor is prone to damage, short circuit and other problems, which increases the use cost and maintenance difficulty of the device.

[0004] Therefore, an adjustable angle formula photovoltaic panel support device is needed to solve the problems of the traditional adjustable photovoltaic support, which adjusts the use angle of photovoltaic support through motor drive, high use cost and high maintenance difficulty. UTILITY MODEL CONTENTS

[0005] The utility model provides an adjustable angle formula photovoltaic panel support device to solve the problems of the traditional adjustable photovoltaic support, which adjusts the use angle of photovoltaic support through motor drive, high use cost and high maintenance difficulty.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] An adjustable angle formula photovoltaic panel support device, characterized by: including support frame, lock wheel interlocking device, support, push rod and hand crank device, the bottom of support is supported, the top of support is rotationally connected with lock wheel interlocking device, the top of lock wheel interlocking device is fixed with support frame, the side wall of lock wheel interlocking device extends outward along the axial direction of rotation shaft and has second limiting rod, the side wall of support is vertically slidably installed with push rod, the upper end of push rod is equipped with horizontal upper slide, the second limiting rod is slidably arranged in the upper slide, the lower end of push rod is connected with the hand crank device, the hand crank device is used to drive push rod to move vertically, and push rod is used to push second limiting rod to drive lock wheel interlocking device to rotate around rotation shaft.

[0008] To optimize the above technical scheme, the specific measures also include:

[0009] Furthermore, the locking wheel interlocking device has an inverted U-shaped structure. The top of the inverted U-shaped locking wheel interlocking device is used to fix the bracket frame, and the lower opening of the inverted U-shaped locking wheel interlocking device is snapped into and rotatably connected to the top of the bracket.

[0010] Furthermore, the locking wheel interlocking device has a semi-circular rotating groove on the side wall along the axis of the rotating shaft. The center of the semi-circular rotating groove is coaxial with the rotating shaft. A first limiting rod extends outward from the top side wall of the bracket and is slidably inserted into the rotating groove.

[0011] Furthermore, the hand crank device includes a central shaft, a first crank, a second crank, and a short shaft. The lower end of the push rod is provided with a transverse sliding track. One end of the first crank and the second crank are both fixed on the central shaft. The other ends of the first crank and the second crank are set far apart. The other end of the second crank is provided with a short shaft parallel to the axial direction of the central shaft. The central shaft is rotatably disposed on the side of the bracket. The short shaft is slidably inserted into the sliding track.

[0012] Furthermore, the hand crank device also includes a long shaft, and the first crank is provided with a long shaft for driving the first crank to rotate.

[0013] Furthermore, the sliding track is provided with a safety catch to restrict the short axis from sliding within the sliding track.

[0014] Furthermore, the bracket includes an upright and a base. The top of the upright is rotatably connected to a locking wheel interlocking device, the body of the upright is provided with a mounting plate for installing the hand crank device, and the bottom of the upright is connected to the base.

[0015] Furthermore, the support also includes balance beams, and several obliquely arranged balance beams are connected at intervals between the upright and the base.

[0016] Furthermore, the base is strip-shaped or disc-shaped.

[0017] Furthermore, the side wall of the bracket is provided with several limiters at vertical intervals for engaging with the outside of the push rod and for limiting the push rod to only make vertical movements.

[0018] The beneficial effects of this utility model are:

[0019] This invention utilizes a combination of a support frame, a locking wheel interlocking device, a bracket, a push rod, and a hand crank. During use, the bottom of the bracket serves as support, ensuring structural stability. The hand crank drives the push rod to move vertically, which in turn pushes the second limit rod to swing along the upper slide rail around the pivot point at the top of the bracket. This causes the locking wheel interlocking device to rotate around the pivot point, thereby adjusting the angle of the bracket frame on which the photovoltaic panels are installed. This invention solves the problem of high operating costs and maintenance difficulties caused by the need for a motor to adjust the angle of the photovoltaic bracket.

[0020] This invention relates to a device that adjusts its angle to maximize sunlight exposure as the solar panel's altitude angle changes. The key challenge lies in ensuring a tight fit between all components to achieve optimal performance. The device rotates flexibly with changes in solar altitude angle, facilitating disassembly and reuse. A hand crank allows for precise angle adjustment, rotating left and right around the solar panel's center line as the solar altitude angle changes. Furthermore, the device is securely installed, minimizing quality risks and ensuring a high-quality finished product with a high first-pass yield. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an adjustable angle photovoltaic panel support device proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of an adjustable angle photovoltaic panel support device proposed in this utility model.

[0023] Figure 3 This is a side view of the bracket of an adjustable angle photovoltaic panel bracket device proposed in this utility model;

[0024] Figure 4 This is a top view of the bracket of an adjustable angle photovoltaic panel support device proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the locking wheel interlocking device of an adjustable angle photovoltaic panel support device proposed in this utility model;

[0026] Figure 6 This is a side view of the locking wheel interlocking device of an adjustable angle photovoltaic panel support device proposed in this utility model;

[0027] Figure 7 This is a schematic diagram of the push rod of an adjustable angle photovoltaic panel support device proposed in this utility model;

[0028] Figure 8This is a schematic diagram of the hand crank device of an adjustable angle photovoltaic panel support device proposed in this utility model.

[0029] Figure 9 This is a top view of the hand crank device of an adjustable angle photovoltaic panel support device proposed in this utility model.

[0030] Reference numerals: 1. Support frame, 2. Bearing linkage device, 3. Locking wheel interlocking device, 31. Rotating groove, 32. Second limit rod, 4. Limiter, 5. Push rod, 51. Upper slide rail, 52. Lower slide rail, 6. Support, 61. Upright pole, 62. Base, 63. Balance beam, 64. First limit rod, 65. Mounting plate, 7. Hand crank device, 71. Long shaft, 72. Short shaft, 73. Central shaft, 8. Safety lock. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] As attached Figure 1 As shown in the figure, an adjustable angle photovoltaic panel support device according to an embodiment of the present invention includes a support frame 1, a locking wheel interlocking device 3, a support 6, a push rod 5, and a hand crank device 7. The bottom of the support 6 is supported, and the top of the support 6 is rotatably connected to the locking wheel interlocking device 3. The top of the locking wheel interlocking device 3 is fixed with the support frame 1 for installing the photovoltaic panel. The locking wheel interlocking device 3 has a second limiting rod 32 extending outward along the side wall along the axis of rotation. The side wall of the support 6 is vertically slidably mounted with the push rod 5. The upper end of the push rod 5 is provided with a transverse upper slide rail 51. The second limiting rod 32 is slidably disposed in the upper slide rail 51. The lower end of the push rod 5 is connected to the hand crank device 7. The hand crank device 7 is used to drive the push rod 5 to move vertically. The push rod 5 is used to push the second limiting rod 32 to drive the locking wheel interlocking device 3 to rotate around the axis of rotation.

[0033] This invention utilizes a combination of a support frame 1, a locking wheel interlocking device 3, a support 6, a push rod 5, and a hand crank device 7. During use, the bottom of the support 6 serves as a support, ensuring structural stability. The hand crank device 7 drives the push rod 5 to move vertically. This vertical movement of the push rod 5 pushes the second limiting rod 32 to swing along the upper slide rail 51 around the pivot point at the top of the support 6. This, in turn, causes the locking wheel interlocking device 3 to rotate around the pivot point, thereby adjusting the angle of the support frame 1 on which the photovoltaic panels are installed. This invention solves the problem of high operating costs and maintenance difficulties caused by the need for a motor to adjust the angle of the photovoltaic support.

[0034] In this embodiment, the top of the bracket 6 and the locking wheel interlocking device 3 can be rotatably connected by the bearing linkage device 2.

[0035] As attached Figure 5 and attached Figure 6As shown, in another specific embodiment, the locking wheel interlocking device 3 has an inverted U-shaped structure. The top of the inverted U-shaped locking wheel interlocking device 3 is used to fix the bracket frame 1, and the lower end opening of the inverted U-shaped locking wheel interlocking device 3 is snapped and rotatably connected to the top of the bracket 6.

[0036] In another specific embodiment, the locking wheel interlocking device 3 has a semi-circular rotating groove 31 on its side wall along the axial direction of the rotating shaft. The center of the semi-circular rotating groove 31 is coaxial with the rotating shaft. A first limiting rod 64 extends outward from the top side wall of the bracket 6 and is slidably inserted into the rotating groove 31. Thus, by setting the semi-circular rotating groove 31, the rotation range of the locking wheel interlocking device 3 can be limited. If the opening of the semi-circular rotating groove 31 is set directly opposite the bottom center of the bracket frame 1, the bracket frame 1 can move freely 90° to the left and right of the center position.

[0037] As attached Figure 7 Appendix Figure 8 and attached Figure 9 As shown, in another specific embodiment, the hand crank device 7 includes a central shaft 73, a first crank, a second crank, and a short shaft 72. The lower end of the push rod 5 is provided with a transverse sliding groove 52. One end of both the first and second cranks is fixed to the central shaft 73, and the other ends of the first and second cranks are positioned far apart. The other end of the second crank is provided with a short shaft 72 parallel to the axial direction of the central shaft 73. The central shaft 73 is rotatably mounted on the side of the bracket 6, and the short shaft 72 is slidably inserted into the sliding groove 52. Thus, by driving the first crank to rotate, the second crank is driven to rotate, thereby causing the short shaft 72 on the second crank to slide vertically in an arc shape within the sliding groove 52, and pushing the push rod 5 to move vertically.

[0038] In a further specific embodiment, the hand crank device 7 also includes a long shaft 71, which is provided on the first crank handle for driving the first crank handle to rotate. This facilitates driving the rotation of the second crank handle, etc., via the long shaft 71.

[0039] In a further specific embodiment, the sliding track 52 is provided with a safety catch 8 to restrict the sliding of the short shaft 72 within the sliding track 52. In this embodiment, the safety catch 8 can be two bolts, which are tightened on both sides of the short shaft 72 after adjustment to restrict the movement of the short shaft 72. This facilitates restricting the movement of the short shaft 72 after adjustment and locking the adjusted angle.

[0040] As attached Figure 2 Appendix Figure 3 and attached Figure 4As shown, in another specific embodiment, the bracket 6 includes a vertical rod 61 and a base 62. The top of the vertical rod 61 is rotatably connected to a locking wheel interlocking device 3, the body of the vertical rod 61 is provided with a mounting plate 65 for mounting the hand crank device 7, and the bottom of the vertical rod 61 is connected to the base 62. Thus, the mounting plate 65 facilitates the rotation of the central axis 73 of the aforementioned hand crank device 7.

[0041] In a further specific embodiment, the support 6 also includes balance beams 63, with several obliquely arranged balance beams 63 spaced apart between the upright 61 and the base 62. Thus, the balance beams 63 increase the stability of the support 6 structure.

[0042] In a further specific embodiment, the base 62 is strip-shaped or disc-shaped. Two bolt holes may be provided on the base 62 for easy later fixing.

[0043] In another specific embodiment, the sidewall of the bracket 6 is provided with several limiters 4 at vertical intervals for engaging with the outside of the push rod 5 and restricting the push rod 5 to move only vertically. The limiter 4 has a structure with a smooth circular hole in the center and is welded to the bracket 6 for positioning. The size of the central hole of the limiter 4 matches the size of the push rod 5, ensuring good contact.

[0044] This utility model device can adjust as needed the distance between the second limiting rod 32 and the rotating shaft, the size of the first and second rocker handles, the length difference between the first and second rocker handles, etc., to change the rotation ratio as needed, thereby increasing the adjustment accuracy.

[0045] Among them, the aforementioned locking wheel interlocking device 3 can be made of high-strength wear-resistant steel material, the push rod 5 can be made of solid high-strength wear-resistant steel threaded rod with a smooth outer surface that can move freely within a specified range, the hand crank device 7 and safety lock 8 can be composed of thickened steel pipe, steel plate, bolts, etc., the safety lock 8 can be slidably installed in the upper slide rail 51 and the lower slide rail 52, and the surface can be engraved with grooves that are compatible with the interior of the slide rail as needed, the base 62 and the balance beam 63 can be made of high-strength wear-resistant steel plate or hollow steel, and can be connected by welding, the bottom of the base 62 can be fixed to the ground by high-strength bolts, and the structure of this device can be disassembled and assembled as needed, which is convenient for maintenance or installation.

[0046] The installation of this utility model device includes the following steps:

[0047] Step 1: First, fix the base 62 in place, then install the upright 61 and the balance beam 63 to complete the preliminary preparation work;

[0048] Step 2: Install the locking wheel interlocking device 3 on the top of the upright 61 through the bearing linkage device 2, and engage the first limiting rod 64 on the upright 61 in the rotating groove 31 of the locking wheel interlocking device 3. The bearing linkage device 2 can be a bearing.

[0049] Step 3: Install push rod 5 and connect the upper slide rail 51 of push rod 5 to the second limit rod 32 to ensure that push rod 5 can drive the second limit rod 32 to rotate around the axis of bearing linkage device 2;

[0050] Step 4: Install the hand crank device 7, connect the short shaft 72 to the lower slide rail 52 of the push rod 5, and ensure that rotating the first crank can drive the push rod 5 to move vertically, and that the various kinematic pairs can move normally.

[0051] Step 5: Install the photovoltaic panel onto the bracket frame 1 and adjust the angle as needed; after reaching the required angle, lock the movement of the short shaft 72 in the lower slide rail 52 by using the safety clip 8 to achieve the adjusted locking; the second limit rod 32 can also be further locked in the upper slide rail 51 by using the safety clip 8 as needed.

[0052] In one specific embodiment of this utility model, the long shaft 71 of the hand crank device 7, which serves as a connection and fixation device in the central part, has a diameter R=1.5CM and a length of 17CM; the short shaft 72 has a diameter R=0.8CM and a length of 5CM; the central shaft 73 has a diameter R=2.3CM and a length of 6CM; and the dial at one end of the second crank has a diameter R=4.5CM and a thickness of 8mm. The central shaft 73 is connected to the mounting plate 65, and the short shaft 72 is tightly connected to the sliding track 52, which can match the inner diameter of the sliding track 52. It can also be removed later.

[0053] The locking wheel interlocking device 3 is made of steel with a thickness of 6mm and a length of 21cm. There are two φ=5mm rotating grooves 31 on the outer surface of the device, which are connected to the first limiting rod 64. The bearing diameter R=6CM. A second limiting rod 32 with a diameter R=8mm is fixed to the outer surface of the locking wheel interlocking device 3 by welding. The second limiting rod 32 is connected to the upper slide rail 51.

[0054] The push rod 5 is 80 cm long, of which the upper slide rail 51 is 21 cm long and has a diameter of φ=5 mm, and the lower slide rail 52 is 21 cm long and has a diameter of φ=5 mm.

[0055] Safety card 8 can also be made of steel pipe with specification M10*1.5 and length = 55CM. The steel pipe has internal thread, and the internal thread size corresponds to the end of the hand crank. The bolt hole at the end of safety card 8 is connected to the slide thread of push rod 5, where the thread diameter is M8, so as to play a good connection and locking role.

[0056] The upright pole 61 has a wall thickness of 0.5mm, a length of 175cm, and a width of 5cm. The upright pole 61 has four limiters 4, each 4cm long, with a spacing of 27cm between each limiter 4. Each limiter 4 has a circular hole with a radius of R=25 at its center, which serves to fix and limit the push rod 5. The base 62 is 100cm long and has two 43cm long balance beams 63 at its center, which can provide good fixation. There are two high-strength bolt holes at the bottom of the base 62, with a bolt hole size of M10, which will provide good fixation for the entire photovoltaic panel support adjustment device in the future.

[0057] The above-mentioned components are all custom-made by the manufacturer according to the technical standards of each component length, thread, gear, punching, etc., so that they can be used in combination. The required nuts are connected by welding. The welding quality is required to be full, smooth, free of weld slag and bubbles, and anti-corrosion treatment is required.

[0058] This utility model device can control the movement of the push rod 5 and other components via a hand crank device 7, thereby controlling the angle adjustment of the support frame 1. For example, turning the first crank of the hand crank device 7 clockwise controls the locking wheel interlocking device 3 to move the support frame 1 within a 90° range to the right, and turning the first crank of the hand crank device 7 counterclockwise controls the locking wheel interlocking device 3 to move the support frame 1 within a 90° range to the left. The rotation of the hand crank device 7 drives the upper locking wheel interlocking device 3 to move, forming a kinematic pair. The upper slide rail 51 and lower slide rail 52 of the push rod 5 can correspondingly restrict and drive the second limiting rod 32 and the short shaft 72 to move synchronously. Through the close cooperation between the components, a complete closed-loop motion system is formed. The second limiting rod 32 and the short shaft 72 correspond to the inner diameter parameters of the upper slide rail 51 and the lower slide rail 52, respectively.

[0059] In this way, the movement angle of the photovoltaic panel can be adjusted according to the change of the solar altitude angle. At the same time, the hand crank device 7 can control the center of the support frame 1 to rotate 90° to the left and right, and adjust according to the different solar altitude angles each day. It can be promoted and used in large-scale photovoltaic panels and reused in the photovoltaic panel angle adjustment system, which fully meets the requirements of photovoltaic panels for light when the solar altitude angle changes.

[0060] This utility model device is based on the ability to adjust the angle of the device to ensure sufficient sunlight as the solar altitude angle changes. The key challenge lies in ensuring that all components fit together tightly to achieve optimal performance. This device can rotate flexibly with changes in the solar altitude angle, facilitating disassembly and reuse. Simultaneously, the hand crank 7 allows for precise angle adjustment, rotating 90° left and right of the solar panel centerline as the solar altitude angle changes. Furthermore, the device is securely installed, avoiding quality risks and ensuring the aesthetic quality and first-pass yield of the finished product.

[0061] In traditional photovoltaic (PV) support systems, installation can be limited in complex terrains such as mountains, hills, and deserts. These terrains have significant surface undulations, making foundation construction difficult and costly, and potentially damaging vegetation and the ecological environment. This new device eliminates the drawbacks of traditional PV support systems, including complex procedures, low efficiency, high maintenance costs, project delays, and significant quality risks. It effectively reduces multiple construction steps, shortens the construction cycle, avoids quality risks, and ensures the aesthetic quality and installation qualification rate of the finished product. It represents a new breakthrough in the light absorption and utilization rate of large-scale PV panel support systems, achieving significant economic and social benefits.

[0062] The main purpose of this invention is to fully meet the requirements of photovoltaic panels with different sunlight in different regions. The support structure can be changed with the solar altitude angle, is detachable, and can be reused.

[0063] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0064] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. An adjustable angle photovoltaic panel support device, characterized in that: The device includes a support frame (1), a locking wheel interlocking device (3), a bracket (6), a push rod (5), and a hand crank device (7). The bottom of the bracket (6) is supported, and the top of the bracket (6) is rotatably connected to the locking wheel interlocking device (3). The top of the locking wheel interlocking device (3) is fixed to the support frame (1). The locking wheel interlocking device (3) has a second limiting rod (32) extending outward along the side wall of the rotating shaft. The side wall of the bracket (6) is vertically slidably equipped with a push rod (5). The upper end of the push rod (5) is provided with a horizontal upper slide rail (51). The second limiting rod (32) is slidably disposed in the upper slide rail (51). The lower end of the push rod (5) is connected to the hand crank device (7). The hand crank device (7) is used to drive the push rod (5) to move vertically. The push rod (5) is used to push the second limiting rod (32) to drive the locking wheel interlocking device (3) to rotate around the rotating shaft.

2. The adjustable angle photovoltaic panel support device according to claim 1, characterized in that: The locking wheel interlocking device (3) has an inverted U-shaped structure. The top of the inverted U-shaped locking wheel interlocking device (3) is used to fix the bracket frame (1), and the lower end opening of the inverted U-shaped locking wheel interlocking device (3) is snapped into and rotatably connected to the top of the bracket (6).

3. The adjustable angle photovoltaic panel support device according to claim 1, characterized in that: The locking wheel interlocking device (3) has a semi-circular rotating groove (31) on the side wall along the axis of the rotating shaft. The center of the semi-circular rotating groove (31) is coaxial with the rotating shaft. The top side wall of the bracket (6) extends outward with a first limiting rod (64), which is slidably inserted into the rotating groove (31).

4. The adjustable angle photovoltaic panel support device according to claim 1, characterized in that: The hand crank device (7) includes a central shaft (73), a first crank, a second crank, and a short shaft (72). The lower end of the push rod (5) is provided with a transverse sliding track (52). One end of the first crank and the second crank are both fixed on the central shaft (73). The other ends of the first crank and the second crank are set far apart. The other end of the second crank is provided with a short shaft (72) parallel to the axial direction of the central shaft (73). The central shaft (73) is rotatably set on the side of the bracket (6). The short shaft (72) is slidably inserted into the sliding track (52).

5. The adjustable angle photovoltaic panel support device according to claim 4, characterized in that: The hand crank device (7) further includes a long shaft (71), and the first crank is provided with a long shaft (71) for driving the first crank to rotate.

6. The adjustable angle photovoltaic panel support device according to claim 4, characterized in that: The slide rail (52) is provided with a safety clip (8) for restricting the short shaft (72) from sliding in the slide rail (52).

7. The adjustable angle photovoltaic panel support device according to claim 1, characterized in that: The bracket (6) includes a pole (61) and a base (62). The top of the pole (61) is rotatably connected to a locking wheel interlocking device (3). The pole body of the pole (61) is provided with a mounting plate (65) for installing the hand crank device (7). The bottom of the pole (61) is connected to the base (62).

8. The adjustable angle photovoltaic panel support device according to claim 7, characterized in that: The support (6) also includes a balance beam (63), and several obliquely arranged balance beams (63) are connected between the upright (61) and the base (62) at intervals.

9. The adjustable angle photovoltaic panel support device according to claim 7, characterized in that: The base (62) is strip-shaped or disc-shaped.

10. An adjustable angle photovoltaic panel support device according to claim 1, characterized in that: The side wall of the bracket (6) is provided with several limiters (4) at vertical intervals for engaging with the outside of the push rod (5) and for limiting the push rod (5) to only make vertical movements.