Photovoltaic power generation equipment maintenance rack

Abstract

The application relates to the technical field of lifting maintenance racks, and discloses a photovoltaic power generation equipment maintenance rack which comprises a base, a guide rail, the guide rail can be laid outside a photovoltaic rack and forms a closed loop path, the guide rail provides a continuous guide basis for the overall movement of the maintenance rack, realizes the maintenance coverage of the whole area of the periphery of the photovoltaic rack, a scissor mechanism, the scissor mechanism can drive a top plate to realize vertical lifting adjustment, the maintenance platform is suitable for photovoltaic power generation equipment maintenance operation of different heights, a track wheel set and the top plate, the track wheel set is arranged at the top of the guide rail, the track wheel set can roll and travel along the guide rail, drives the base and the overall structure at the upper portion to move along the track path, the track wheel set is connected with the base, the top plate is arranged at the top of the scissor mechanism, and the base is fixedly connected with the scissor mechanism. The photovoltaic power generation equipment maintenance rack effectively solves the problem that single-level locking is easy to be loosened and invalid, and significantly improves the safety and reliability of platform side protection.

Description

Technical Field

[0001] This invention relates to the field of lifting and maintenance rack technology, specifically a photovoltaic power generation equipment maintenance rack. Background Technology

[0002] In the daily operation and maintenance of photovoltaic power plants, inspection racks are commonly used lifting equipment. They can lift workers to the corresponding height of the photovoltaic brackets to complete the inspection, cleaning and replacement of photovoltaic modules. Inspection racks equipped with track walking structures can move along the track around the photovoltaic brackets, covering the operation needs of multiple photovoltaic devices and effectively improving the coverage and efficiency of operation and maintenance.

[0003] Existing photovoltaic maintenance racks with track-based movement typically feature rotating and opening movable doors along their platform railings, secured with locks. However, this locking structure uses only a single-level locking mechanism. If the lock is loosened by external force or accidentally opened while workers are working at the platform edge and leaning against the movable door, the side protection structure will fail, posing a significant safety hazard. Furthermore, existing maintenance racks often use electronically controlled locking mechanisms between the track and the wheel assembly. These require position sensors, control units, and other components to coordinate locking and unlocking. The entire locking system is complex, and since photovoltaic power plants are mostly located outdoors, the electronic components are constantly exposed to wind, sand, temperature and humidity changes, and moisture, making them prone to sensor malfunctions and circuit failures. This makes it difficult to maintain a stable locking function and increases the risk of accidental slippage of the walking mechanism. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a photovoltaic power generation equipment maintenance rack, which solves the technical problems of existing maintenance racks where the movable door uses only a single-level locking structure that is prone to loosening and failure, insufficient side protection reliability, and the electronically controlled locking structure of the track walking mechanism is prone to failure in outdoor environments, has poor locking function stability, and is prone to causing accidental slippage of the walking mechanism.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic power generation equipment maintenance frame, comprising a base, a guide rail, a scissor mechanism, a track wheel assembly, and a top plate. The guide rail can be laid outside the photovoltaic frame to form a closed-loop path, providing a continuous guiding foundation for the overall movement of the maintenance frame and achieving maintenance coverage of the entire perimeter of the photovoltaic frame. The scissor mechanism can drive the top plate to achieve vertical lifting and lowering adjustment, making the maintenance platform adaptable to maintenance operations of photovoltaic power generation equipment at different heights. The track wheel assembly is set on top of the guide rail and can roll along the guide rail, driving the base and the upper overall structure to move along the track path. The track wheel assembly is connected to the base, and the top plate is set on top of the scissor mechanism, with the base fixedly connected to the scissor mechanism. The top of the top plate is uniformly provided with a fence, which constitutes the main protective structure of the maintenance platform's perimeter, preventing workers from falling from the platform edge during operation. The fence has a rotating movable door inside, which can be opened to allow workers to enter and exit the maintenance platform. Simultaneously, it can cooperate with a locking mechanism to achieve secondary reinforcement and locking, further improving the safety of the side protection. A standing platform is installed on top of the top plate. This platform has a deformation allowance and is supported by multiple independent power supply mechanisms on its four sides and center. It can generate corresponding depression deformation based on the worker's standing position, converting the worker's weight into power input to trigger the power supply mechanisms. Position sensing triggering can be achieved without additional electronic sensors. Power supply mechanisms are evenly distributed between the standing platform and the top plate. Five sets of power supply mechanisms are arranged corresponding to the four sides and center of the standing platform, each connected to a corresponding locking mechanism. The power supply mechanisms convert the depression displacement of the standing platform into pneumatic power, providing a driving air source for the locking mechanisms, achieving linkage drive through a purely mechanical structure. Locking mechanisms are installed at the output end of each power supply mechanism. These locking mechanisms are respectively located between the movable door and the fence, and between the track wheel assembly and the guide rail. The locking mechanism located between the movable door and the fence performs a locking action after receiving pneumatic drive, providing secondary reinforcement to the movable door on the corresponding side. The locking mechanism, located between the track wheel assembly and the guide rail, has a built-in elastic reset component. Under normal conditions, it relies on elastic force to maintain the locked state and restrict the movement of the track wheel assembly. When it receives air pressure, it overcomes the elastic force to perform the unlocking action and releases the movement restriction.

[0006] The power supply mechanism includes a hollow column, which serves as a sealed cavity carrier for air pressure generation. The column contains air and cooperates with a piston rod to form a compressible air chamber. The piston rod is slidably connected to the inner cavity of the hollow column. When the standing plate drives the piston rod down along the inner cavity of the hollow column, the air inside the compressible air chamber forms a high-pressure airflow, converting gravitational potential energy into pneumatic power. The output end of the piston rod is connected to a hinge structure with a sliding pair (slide rail hinge). The slide rail hinge can adapt to the angular deflection caused by the standing plate sinking, stably transmitting the vertical downward displacement of the standing plate into the axial sliding displacement of the piston rod, avoiding structural jamming during transmission. The other end of the slide rail hinge is connected to the standing plate. A support frame is provided on the outside of the hollow column, providing stable lateral mounting and fixing to the hollow column, ensuring the overall installation strength and working stability of the power supply mechanism. The support frame is connected to the top plate. A curved pipe is connected to the airflow output end of the hollow column. The curved pipe is used to directionally deliver the high-pressure airflow generated by the hollow column to the corresponding locking mechanism, achieving precise power transmission. The locking mechanism includes a guide air box, which serves as the driving cavity for the locking action. After receiving high-pressure airflow, the guide air box provides pneumatic power and guidance for the piston's sliding motion. The guide air box is also connected to a bend in the pipe. In the locking mechanism corresponding to the movable door, pneumatic pistons are slidably connected to both sides of the inner cavity of the guide air box. After the high-pressure airflow enters the central chamber of the guide air box, it pushes the pneumatic pistons on both sides to slide outward along the cavity, converting the pneumatic power into linear thrust. In the locking mechanism corresponding to the track wheel assembly, pneumatic pistons are slidably connected to both sides of the inner cavity of the guide air box. A return spring is installed between the pneumatic piston and the end of the guide air box. Under normal conditions, the return spring pushes the pneumatic piston outward to maintain locking. After the high-pressure airflow enters the outer chamber of the guide air box, it pushes the pneumatic piston inward against the spring force of the return spring, thus unlocking. A locking block is installed at the other end of the pneumatic piston. The locking block extends and retracts synchronously with the pneumatic piston, achieving the locking function through the extension and engagement action, and the unlocking function through the retraction action. The guide air box is provided with a locking disc on its outside. The locking disc serves as a fixed base for locking and engaging with the extended locking block to achieve relative fixation between corresponding components.

[0007] Preferably, the locking mechanism comprises five sets, each corresponding to one of the four sides and the center of the standing panel. Four sets correspond to the movable doors and railings on the four sides, triggering locking reinforcement when a worker stands on the corresponding side. One set corresponds to the track wheel assembly and guide rail at the center, releasing track movement restrictions when a worker stands in the center, forming a zone-linked trigger logic. The guide air box is connected to both the track wheel assembly and the movable door, allowing the guide air box to move synchronously with these moving components. The locking disc is connected to the railing and guide rail, keeping the locking disc stationary with the fixed components such as the railing and guide rail. Together, they enable locking and unlocking switching between moving and fixed components.

[0008] Preferably, the standing board is provided with an elastic sleeve on its exterior. The elastic sleeve can flexibly seal the gaps around the standing board, preventing dust, rainwater, and debris from entering the cavity between the standing board and the top plate, thus protecting the internal power supply mechanism. At the same time, it can adapt to the sinking deformation of the standing board without hindering the triggering action. The other end of the elastic sleeve is connected to the top plate. The elastic sleeve can also provide auxiliary rebound force after the staff leaves, helping the standing board to return to its initial horizontal state.

[0009] Preferably, the inner cavity of the scissor mechanism is equipped with a drive mechanism, which provides stable power output for the lifting and lowering action of the scissor mechanism, realizing controllable adjustment of the top plate height. The outside of the fence is equipped with a control module, which is electrically connected to the guide rail and the scissor mechanism. The operator can send commands through the control module to control the lifting and lowering of the scissor mechanism and the movement of the track wheel set, which complements the mechanical linkage locking structure and improves the convenience of operation.

[0010] Preferably, at least four sets of fences are provided, and they are evenly distributed at the four corners of the top of the top plate. The four sets of fences form a complete enclosure around the top plate, covering all edge areas of the platform and fully ensuring the standing safety of the staff. The movable door is set between two sets of fences. The movable door is connected to one set of fences by a hinge, realizing the single-sided rotation opening and closing of the movable door. The opening and closing method is stable and reliable. In addition, a lock body is provided between the movable door and the other set of fences, which can realize the basic locking of the movable door. Together with the secondary reinforcement of the locking mechanism, a double protection is formed. The movable door is provided with a handle on the outside, which makes it easy for the staff to grip and apply force to open or close the movable door, improving the convenience of entry and exit operations.

[0011] Preferably, the top of the standing plate is provided with anti-slip texture, which can increase the friction of the standing plate surface, prevent the workers from slipping when standing and working, and improve the safety of maintenance work. An elastic return component is provided between the standing plate and the top plate. The elastic return component can provide an upward elastic rebound force to drive the standing plate to reset after the workers leave the standing plate, and at the same time drive the piston rod to return synchronously, so that the corresponding locking mechanism automatically returns to the initial state, realizing automatic reset without operation.

[0012] Preferably, a return component is provided between the piston rod and the hollow column. After the sinking force of the standing plate disappears, the return component pushes the piston rod to slide back along the inner cavity of the hollow column to reset, so that the air pressure inside the hollow column returns to normal pressure, preparing for the next triggering action. A reinforcing arm is provided on the outside of the piston rod to improve the structural strength and bending resistance of the piston rod and avoid deformation failure due to long-term reciprocating sliding. The piston rod is connected to the slide rail hinge through a hinge, which can adapt to the angle change during the transmission process of the slide rail hinge, ensure the smoothness of power transmission, and avoid hard interference.

[0013] Preferably, the outside of the bend is provided with a protective sleeve, which can wrap and protect the pipe wall to prevent air leakage caused by bending, scratching, or aging, and extend the service life of the pipe. The bend is embedded in the top plate and the scissor mechanism. The embedded installation can avoid the pipe being exposed and occupying space, prevent the pipe from being damaged by external force, and make the overall structure of the maintenance rack more regular and beautiful.

[0014] Preferably, a sealing sleeve is provided at the junction of the locking block and the guide air box. The sealing sleeve can dynamically seal the sliding gap between the locking block and the guide air box, preventing the high-pressure airflow inside the guide air box from leaking out of the gap, ensuring sufficient power for air pressure drive and reliable locking. The locking disc is evenly provided with slots that are compatible with the locking block. The evenly arranged slots can be adapted to the insertion and engagement of the locking block. The multi-slot design can achieve locking in different relative positions of the components, improving the adaptability and reliability of the locking action.

[0015] Preferably, a sealing sleeve is provided at the junction of the bend and the guide air box to ensure the airtightness of the connection between the pipeline and the air box, prevent air pressure leakage at the interface, and ensure sufficient driving force for locking or unlocking actions. A control valve is provided on the outside of the bend. The control valve can close the cooperation between the power supply mechanism and the locking mechanism. According to special operation requirements, the operator can manually cut off the air circuit and close the linkage function between the power supply mechanism and the locking mechanism through the control valve to adapt to different operation scenarios. A ladder is provided on the outside of the top plate. The ladder allows the operator to climb to and from the maintenance platform at the top of the top plate, providing a passage for personnel to go up and down, and adapting to the height state after the maintenance frame is raised or lowered.

[0016] Compared with the prior art, the present invention provides a maintenance rack for photovoltaic power generation equipment, which has the following beneficial effects: This photovoltaic power generation equipment maintenance rack utilizes the mechanical linkage between the standing plate, the power supply mechanism, and the locking mechanism on the side of the movable door. When a worker stands on the edge of the platform, their weight causes the corresponding area of ​​the standing plate to sink, which in turn drives the power supply mechanism to generate pneumatic power and transmit it to the locking mechanism, thereby achieving secondary reinforcement and locking of the movable door. This adds an extra layer of mechanical locking protection to the original lock body, effectively solving the problem of easy loosening and failure of single-level locking, and significantly improving the safety and reliability of the platform's side protection.

[0017] The locking control between the track wheel assembly and the guide rail is achieved through a purely mechanical and pneumatic linkage structure. Under normal conditions, the locking mechanism remains locked to restrict the movement of the track wheel assembly. Only when the worker stands in the center area of ​​the standing platform, the locking mechanism is unlocked by air supplied by the central power supply mechanism. No additional electronic control sensors and control units are required. The overall structure is simple and compact, and the locking function is not affected by complex environmental factors such as outdoor wind, sand, temperature and humidity. It can continuously and stably play the locking role, avoid the risk of accidental slippage of the walking mechanism, and improve the stability of equipment operation and work safety. Attached Figure Description

[0018] Figure 1 This is a front view of the present invention; Figure 2 This is a planar schematic diagram of the present invention; Figure 3 This is a schematic diagram of the external appearance of the standing plate of the present invention; Figure 4 This is an external schematic diagram of the power supply mechanism of the present invention; Figure 5 This is a partial cross-sectional view of the locking mechanism of the present invention.

[0019] In the diagram: 1. Base; 2. Guide rail; 21. Rail wheel assembly; 3. Scissor mechanism; 31. Drive mechanism; 4. Top plate; 41. Fence; 42. Movable door; 43. Ladder; 5. Standing plate; 51. Elastic sleeve; 52. Support frame; 6. Power supply mechanism; 61. Hollow column; 62. Piston rod; 63. Slide rail hinge; 64. Bend; 7. Locking mechanism; 71. Guide air box; 72. Pneumatic piston; 73. Locking block; 74. Locking disc. Detailed Implementation

[0020] This invention provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2A photovoltaic (PV) power generation equipment maintenance frame includes: a base 1, a guide rail 2 (which can be laid outside the PV frame to form a closed loop path, providing a continuous guiding foundation for the overall movement of the maintenance frame and achieving full maintenance coverage of the PV frame's perimeter), a scissor lift mechanism 3 (which can drive a top plate 4 to achieve vertical lifting and lowering adjustment, making the maintenance platform adaptable to PV power generation equipment maintenance operations at different heights), a track wheel assembly 21, and a top plate 4. The track wheel assembly 21 is located on top of the guide rail 2 and can roll along the guide rail 2, driving the base 1 and the upper structure to move along the track path. The track wheel assembly 21 is connected to the base 1. The top plate 4 is located on top of the scissor lift mechanism 3, and the base 1 is fixedly connected to the scissor lift mechanism 3. A fence 41 is evenly distributed on the top of the top plate 4, forming the main protective structure around the maintenance platform to prevent workers from falling off the platform during operations. In case of edge fall, the inner rotating part of the fence 41 has a movable door 42, which can be opened to allow personnel to enter and exit the maintenance platform. It can also cooperate with the locking mechanism 7 to achieve secondary reinforcement and locking, further improving the safety of the side protection. A standing plate 5 is installed on the top of the top plate 4. The standing plate 5 can generate corresponding area depression deformation according to the standing position of the personnel, converting the weight of the person into power input to trigger the power supply mechanism 6. Position sensing triggering can be achieved without additional electronic control sensors. Power supply mechanisms 6 are evenly distributed between the standing plate 5 and the top plate 4. The power supply mechanism 6 can convert the depression displacement of the standing plate 5 into pneumatic power, providing a driving air source for the locking mechanism 7. Linkage driving is achieved through a purely mechanical structure. The output end of the power supply mechanism 6 is equipped with the locking mechanism 7, which is respectively located between the movable door 42 and the fence 41, and between the track wheel assembly 21 and the guide rail 2. The locking mechanism 7 located between the movable door 42 and the fence 41 performs a locking action after receiving pneumatic drive, providing secondary reinforcement to the movable door 42 on the corresponding side. The locking mechanism 7, located between the track wheel assembly 21 and the guide rail 2, is normally locked, restricting the movement of the track wheel assembly 21. When pneumatically driven, it performs an unlocking action to release the movement restriction.

[0021] Please see Figure 3 and Figure 4The power supply mechanism 6 includes a hollow column 61, which serves as a sealed cavity carrier for air pressure generation. The hollow column 61 contains air and cooperates with a piston rod 62 to form a compressible air chamber. The piston rod 62 is slidably connected to the inner cavity of the hollow column 61. When the standing plate 5 drives the piston rod 62 to slide down along the inner cavity of the hollow column 61, the air inside the compressible air chamber forms a high-pressure airflow, converting gravitational potential energy into air pressure power. The output end of the piston rod 62 is connected to a slide rail hinge 63, which can be adapted to the lower part of the standing plate 5. The angle deflection generated during the sinking process stably transmits the vertical downward displacement of the standing plate 5 to the axial sliding displacement of the piston rod 62, avoiding structural jamming during transmission. The other end of the slide rail hinge 63 is connected to the standing plate 5. A support frame 52 is provided on the outside of the hollow column 61, which provides stable lateral installation and fixation for the hollow column 61, ensuring the overall installation strength and working posture stability of the power supply mechanism 6. The support frame 52 is connected to the top plate 4, and the airflow output end of the hollow column 61 is connected to a device... A bend 64 is provided, which is used to directionally deliver the high-pressure airflow generated by the hollow column 61 to the corresponding locking mechanism 7 to achieve precise power transmission. The locking mechanism 7 includes a guide air box 71, which is the driving cavity for the locking action. After receiving the high-pressure airflow, it provides pneumatic power and sliding guidance for the piston sliding. The guide air box 71 is connected to the bend 64. Pneumatic pistons 72 are slidably connected to both sides of the inner cavity of the guide air box 71. After the high-pressure airflow enters the inner cavity of the guide air box 71, it can push the pneumatic pistons 72 on both sides to slide outward along the cavity, converting the pneumatic power into linear thrust. A locking block 73 is provided at the other end of the pneumatic piston 72. The locking block 73 extends and retracts synchronously with the pneumatic piston 72. The locking function is achieved by extending and engaging, and the unlocking function is achieved by retracting. A locking disc 74 is provided on the outside of the guide air box 71. The locking disc 74 serves as a fixed base for locking and engages with the extended locking block 73 to achieve relative fixation between the corresponding components.

[0022] Please see Figure 4 and Figure 5 The locking mechanism 7 consists of five sets, each corresponding to one of the four sides and the center of the standing panel 5. Four sets correspond to the four side doors 42 and the fence 41, and can be triggered to lock and reinforce when a worker stands on the corresponding side. One set corresponds to the track wheel assembly 21 and the guide rail 2 at the center, and can release the track movement restriction when a worker stands in the center, forming a trigger logic of zone linkage. The guide air box 71 is connected to the track wheel assembly 21 and the door 42, so that the guide air box 71 moves synchronously with the moving parts such as the track wheel assembly 21 and the door 42. The locking disc 74 is connected to the fence 41 and the guide rail 2, so that the locking disc 74 remains stationary with the fixed parts such as the fence 41 and the guide rail 2. The two work together to realize the locking and unlocking switching between the moving parts and the fixed parts.

[0023] An elastic sleeve 51 is provided on the outside of the standing plate 5. The elastic sleeve 51 can flexibly seal the gap around the standing plate 5, preventing dust, rainwater and debris from entering the cavity between the standing plate 5 and the top plate 4, protecting the internal power supply mechanism 6. At the same time, it can adapt to the sinking deformation of the standing plate 5 and does not hinder the triggering action. The other end of the elastic sleeve 51 is connected to the top plate 4. The elastic sleeve 51 can also provide auxiliary rebound force after the staff leaves, helping the standing plate 5 to return to its initial horizontal state.

[0024] The inner cavity of the scissor mechanism 3 is equipped with a drive mechanism 31, which provides stable power output for the lifting and lowering action of the scissor mechanism 3, enabling controllable adjustment of the height of the top plate 4. The outside of the fence 41 is equipped with a control module, which is electrically connected to the guide rail 2 and the scissor mechanism 3. The operator can send commands through the control module to control the lifting and lowering of the scissor mechanism 3 and the movement of the track wheel set 21, which complements the mechanical linkage locking structure and improves the convenience of operation.

[0025] At least four sets of railings 41 are provided, and they are evenly distributed at the four corners of the top of the top plate 4. The four sets of railings 41 form a complete enclosure around the top plate 4, covering all edge areas of the platform and fully ensuring the standing safety of the staff. The movable door 42 is located between two sets of railings 41. The movable door 42 is connected to one set of railings 41 by a hinge, so that the movable door 42 can be rotated and opened and closed on one side. The opening and closing method is stable and reliable. A lock body is provided between the movable door 42 and the other set of railings 41, which can realize the basic locking of the movable door 42. Together with the secondary reinforcement of the locking mechanism 7, it forms a double protection. The movable door 42 is provided with a handle on the outside, so that the staff can hold and apply force to open or close the movable door 42, improving the convenience of entry and exit.

[0026] The top of the standing plate 5 is provided with anti-slip texture, which can increase the friction of the surface of the standing plate 5 and prevent the workers' feet from slipping when standing and working, thus improving the safety of maintenance work. An elastic return component is provided between the standing plate 5 and the top plate 4. After the workers leave the standing plate 5, the elastic return component can provide an upward elastic rebound force to drive the standing plate 5 to reset, and at the same time drive the piston rod 62 to return synchronously, so that the corresponding locking mechanism 7 automatically returns to the initial state, realizing automatic reset without operation.

[0027] A return mechanism is provided between the piston rod 62 and the hollow column 61. After the sinking force of the standing plate 5 disappears, the return mechanism pushes the piston rod 62 to slide back along the inner cavity of the hollow column 61 to reset, so that the air pressure inside the hollow column 61 returns to normal pressure, preparing for the next triggering action. A reinforcing arm is provided on the outside of the piston rod 62 to improve the structural strength and bending resistance of the piston rod 62 and avoid deformation failure due to long-term reciprocating sliding. The piston rod 62 is connected to the slide rail hinge 63 by a hinge, which can adapt to the angle change of the slide rail hinge 63 during the transmission process, ensuring the smoothness of power transmission and avoiding hard interference.

[0028] The outside of the bend 64 is equipped with a protective sleeve, which can wrap and protect the pipe wall of the bend 64 to prevent air leakage caused by bending, scratching, or aging, and extend the service life of the pipe. The bend 64 is embedded inside the top plate 4 and the scissor mechanism 3. The embedded installation can avoid the pipe being exposed and occupying space, prevent the pipe from being damaged by external force, and at the same time make the overall structure of the maintenance rack more neat and beautiful.

[0029] A sealing sleeve is provided at the junction of the locking block 73 and the guide air box 71. The sealing sleeve can dynamically seal the sliding gap between the locking block 73 and the guide air box 71, preventing the high-pressure airflow inside the guide air box 71 from leaking out of the gap, ensuring sufficient power for air pressure drive and reliable locking. The locking disc 74 is evenly provided with slots that are compatible with the locking block 73. The evenly arranged slots can be adapted to the insertion and engagement of the locking block 73. The multi-slot design can achieve locking in different relative positions of the components, improving the adaptability and reliability of the locking action.

[0030] A sealing sleeve is provided at the junction of the bend 64 and the guide air box 71 to ensure the airtightness of the connection between the pipeline and the air box, prevent air pressure leakage at the interface, and ensure sufficient driving force for locking or unlocking actions. A control valve is provided on the outside of the bend 64. The control valve can close the cooperation between the power supply mechanism 6 and the locking mechanism 7. According to special operation requirements, the operator can manually cut off the air circuit and close the linkage function between the power supply mechanism 6 and the locking mechanism 7 through the control valve to adapt to different operation scenarios. A ladder 43 is provided on the outside of the top plate 4. The ladder 43 allows the operator to climb to and from the maintenance platform on the top of the top plate 4, providing a passage for personnel to go up and down, and adapting to the height state after the maintenance frame is raised and lowered.

[0031] First, the guide rail 2 is laid on the outside of the photovoltaic frame to form a closed loop. In use, the ladder 43 is used to climb to the top of the top plate 4, and the scissor mechanism 3 drives the top plate 4 to rise and fall. The staff can stand at any of the four sides of the top of the standing plate 5 to inspect the device. When the staff stands at any point, the corresponding end of the standing plate 5 will sink, thereby driving the hollow column 61 and piston rod 62 to cooperate and supply air to the locking mechanism 7, which will reinforce the fence 41 and the movable door 42 on the side corresponding to the staff. At the same time, when the staff stands in the center of the standing plate 5, the power supply mechanism 6 in the center of the standing plate 5 will drive the locking mechanism 7 at the position of the guide rail 2, thereby releasing the restriction of the locking mechanism 7 on the guide rail 2 and the track wheel assembly 21. The staff can control the track wheel assembly 21 to drive the top plate 4 to move outside the guide rail 2.

Claims

1. A maintenance rack for photovoltaic power generation equipment, comprising: The base (1), guide rail (2), scissor mechanism (3), track wheel assembly (21) and top plate (4), the track wheel assembly (21) is set on the top of the guide rail (2), the track wheel assembly (21) is connected to the base (1), the top plate (4) is set on the top of the scissor mechanism (3), and the base (1) is fixedly connected to the scissor mechanism (3). The top of the top plate (4) is uniformly provided with a fence (41), the fence (41) is rotatably provided with a movable door (42), the top of the top plate (4) is provided with a standing plate (5), the standing plate (5) and the top plate (4) are uniformly provided with a power supply mechanism (6), the output end of the power supply mechanism (6) is provided with a locking mechanism (7), the locking mechanism (7) is respectively set between the movable door (42) and the fence (41) and between the track wheel assembly (21) and the guide rail (2); The power supply mechanism (6) includes a hollow column (61), a piston rod (62) is slidably connected to the inner cavity of the hollow column (61), a slide rail hinge (63) is connected to the output end of the piston rod (62), the other end of the slide rail hinge (63) is connected to the standing plate (5), a support frame (52) is provided on the outside of the hollow column (61), the support frame (52) is connected to the top plate (4), a bend pipe (64) is connected to the airflow output end of the hollow column (61), the locking mechanism (7) includes a guide air box (71), and the guide air box (71) is connected to the bend pipe (64), a pneumatic piston (72) is slidably connected to both sides of the inner cavity of the guide air box (71), a locking block (73) is provided at the other end of the pneumatic piston (72), and a locking disc (74) is provided on the outside of the guide air box (71).

2. The photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: The locking mechanism (7) is provided in five sets, and the guide air box (71) is connected to the track wheel set (21) and the movable door (42) respectively. The locking disc (74) is connected to the fence (41) and the guide rail (2).

3. The photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: An elastic sleeve (51) is provided on the outside of the standing plate (5), and the other end of the elastic sleeve (51) is connected to the top plate (4).

4. The photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: The inner cavity of the scissor mechanism (3) is provided with a drive mechanism (31), and the outside of the fence (41) is provided with a control module. The control module is electrically connected to the guide rail (2) and the scissor mechanism (3).

5. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: The fence (41) is provided in at least four sets and is evenly distributed at the top four corners of the top plate (4). The movable door (42) is provided between two sets of fences (41). The movable door (42) is connected to one set of fences (41) by a hinge, and a lock body is provided between the movable door (42) and the other set of fences (41). The movable door (42) is provided with a handle on the outside.

6. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: The top of the standing plate (5) is provided with anti-slip texture, and an elastic return member is provided between the standing plate (5) and the top plate (4).

7. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: A return member is provided between the piston rod (62) and the hollow column (61), a reinforcing arm is provided on the outside of the piston rod (62), and the piston rod (62) is connected to the slide rail hinge (63) by a hinge.

8. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: The outside of the bend (64) is provided with a protective sleeve, and the bend (64) is embedded inside the top plate (4) and the scissor mechanism (3).

9. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: A sealing sleeve is provided at the junction of the locking block (73) and the guide air box (71), and the locking disc (74) is provided with slots that are adapted to the locking block (73) evenly on its exterior.

10. A photovoltaic power generation equipment maintenance rack according to claim 1, characterized in that: A sealing sleeve is provided at the junction of the bend (64) and the guide air box (71). A control valve is provided on the outside of the bend (64). The control valve can close the cooperation between the power supply mechanism (6) and the locking mechanism (7). A ladder (43) is provided on the outside of the top plate (4).

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