An auxiliary device applied to a telescopic ladder of a photovoltaic power station
By designing a fixed installation and ladder protection structure, and using crossbar hooks and ropes for connection, the safety problem of ladder slippage during photovoltaic module maintenance was solved, achieving improved stability and safety, and avoiding the use of high-cost devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI CONCH NEW ENERGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing technology, ordinary telescopic ladders used for photovoltaic module maintenance are prone to slipping, threatening the safety of maintenance personnel, and high-cost or inconvenient lifting devices are difficult to apply in many scenarios.
An auxiliary device was designed, comprising a fixed installation structure, a telescopic connection structure, and a ladder protection structure. The ladder is connected by a crossbar hook and a rope to restrict its sliding, ensuring a stable connection between the ladder and the photovoltaic module fixing bracket and preventing the ladder from sliding.
It effectively prevents ladders from sliding, improves the safety of maintenance personnel, avoids the need for high-cost devices, and is suitable for various scenarios.
Smart Images
Figure CN224379749U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of photovoltaic module maintenance technology, specifically relating to an auxiliary device for telescopic ladders in photovoltaic power stations. Background Technology
[0002] Photovoltaic modules are often installed on rooftops and terraces at high locations. The conventional practice for maintaining these modules is to use a telescopic ladder attached to the module before maintenance personnel, after taking safety precautions, proceed to troubleshoot. However, during the climb, the ladder may slip due to poor contact with the support structure or unexpected lateral forces, threatening the safety of maintenance personnel. Current technology lacks a structure on the photovoltaic module's mounting bracket to easily secure the upper part of the ladder or prevent slippage. This forces maintenance personnel to either bear the risk of the ladder slipping after climbing or use more stable and reliable lifting devices, such as lifting platforms or electric elevators. However, these devices are difficult to transport or carry in many situations due to cost and ease of use issues. Utility Model Content
[0003] The purpose of this invention is to provide an auxiliary device for telescopic ladders used in photovoltaic power plants, which solves the technical problem in the prior art where the ladder slips, threatening the safety of maintenance personnel working on the ladder.
[0004] An auxiliary device for a telescopic ladder in a photovoltaic power station includes a fixed installation structure, a telescopic connection structure, and a ladder protection structure. The fixed installation structure is installed on the fixed support of the photovoltaic modules. The fixed end of the telescopic connection structure is fixedly connected to the fixed installation structure, and the telescopic end of the telescopic connection structure faces outward. The ladder protection structure is arranged in the same direction as the fixed installation structure. The upper part of the ladder abuts against the outside of the ladder protection structure. The ladder protection structure is provided with crossbar hooks. There are at least two crossbar hooks, which are arranged along the direction of the ladder protection structure. The side uprights on both sides of the ladder are respectively connected to the corresponding crossbar hooks by ropes fixed to the crossbar hooks. The crossbar hooks are used to hook the crossbars of the ladder section when the ladder slides.
[0005] Preferably, the fixed installation structure includes a fixed beam, a support leg, and a diagonal brace. The fixed beam is fixedly connected to the fixed bracket by screws or other fasteners. The support leg is fixed below the fixed beam and supported on the mounting surface of the fixed bracket. The diagonal brace is inclined, with one end fixed to the support leg and the other end fixed to the telescopic connection structure.
[0006] Preferably, the telescopic connection structure is a telescopic rod, which includes an outer sleeve, a locking screw, and a movable rod. The outer sleeve is a hollow tube, and the end of the outer sleeve is fixed to the fixed beam. The movable rod is slidably inserted into the outer sleeve, and the locking screw is located outside the outer sleeve and its lower end can press against the movable rod.
[0007] Preferably, the ladder protection structure includes a connecting beam rotatably connected to the telescopic end of the telescopic connection structure. One connecting beam is connected to the telescopic ends of two telescopic connection structures. The connecting beam is provided with a guide groove. The crossbar hook is hinged to the extended part of the sliding seat. The sliding seat and the guide groove are transitionally fitted to allow the connecting beam to slide.
[0008] Preferably, the crossbar hook includes a support portion covering the connecting beam, with one end of the support portion bent downwards and rotatably connected to the sliding seat via a pivot to form a hinge portion, and the other end of the support portion bent to form a hook-shaped portion that can hook onto the crossbar of the stair section.
[0009] Preferably, the hook-shaped portion is fixed with the rope and the tightening member for tightening the rope.
[0010] This invention has the following advantages: It can be connected to the top of a ladder, restricting the ladder's sliding. When the ladder slides laterally, a vertical force exists, making it difficult for the sliding block to move, thus hindering lateral movement. When the ladder slides downwards, whether the entire ladder slides or the telescopic part slides, the rope will restrict the ladder's sliding. Furthermore, when the section of the ladder above the crossbar hook slides down and is caught by the hook, the auxiliary device effectively prevents further descent, ensuring the safety of maintenance personnel. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of an auxiliary device of the present invention applied to a telescopic ladder in a photovoltaic power station.
[0012] Figure 2 for Figure 1 Front view of the structure shown.
[0013] Figure 3 for Figure 1 An enlarged view of region A in the structure shown.
[0014] Figure 4 for Figure 1 A cross-sectional view of the auxiliary device in the structure shown.
[0015] In the diagram: 1. Mounting surface, 2. Ladder, 3. Fixed bracket, 4. Fixed mounting structure, 401. Fixed beam, 402. Support leg, 403. Diagonal brace, 5. Ladder protection structure, 501. Connecting beam, 502. Horizontal bar hook, 503. Rope, 504. Sliding seat, 6. Telescopic connection structure, 601. Outer casing, 602. Locking screw, 603. Movable rod. Detailed Implementation
[0016] The following detailed description of the embodiments, with reference to the accompanying drawings, will further illustrate the specific implementation of this utility model, in order to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of this utility model.
[0017] like Figures 1-4 As shown, this utility model provides an auxiliary device for a telescopic ladder in a photovoltaic power station, including a fixed installation structure 4, a telescopic connection structure 6, and a ladder protection structure 5. The fixed installation structure 4 is installed on the fixed bracket 3 of the photovoltaic module. The fixed end of the telescopic connection structure 6 is fixedly connected to the fixed installation structure 4, and the telescopic end of the telescopic connection structure 6 faces outward. The ladder protection structure 5 is arranged in the same direction as the fixed installation structure 4. The upper part of the ladder 2 abuts against the outside of the ladder protection structure 5. The ladder protection structure 5 is provided with a crossbar hook 502. There are at least two crossbar hooks 502 and they are arranged along the setting direction of the ladder protection structure 5. The side uprights on both sides of the ladder 2 are respectively connected to the corresponding crossbar hooks 502 by ropes 503 fixed to the crossbar hooks 502. The crossbar hooks 502 are used to hook the crossbar of the ladder section to prevent the ladder 2 from sliding too much when the ladder 2 slides.
[0018] The fixed installation structure 4 includes a fixed beam 401, a support leg 402, and a diagonal brace 403. The fixed beam 401 is fixedly connected to the fixed bracket 3 by screws or other fasteners, for example, the fixed beam 401 is fixed to the outer side of the support leg 402 of the fixed bracket 3. The support leg 402 is fixed below the fixed beam 401 and supported on the mounting surface 1 of the fixed bracket 3. Alternatively, the lower end of the support leg 402 can be fixed to the mounting surface 1 by screws or other fasteners, such as on a roof. The diagonal brace 403 is inclined, with one end fixed to the support leg 402 and the other end fixed to the telescopic connection structure 6, used to maintain the structural stability of the telescopic connection structure 6.
[0019] The telescopic connection structure 6 is a telescopic rod, which includes an outer sleeve 601, a locking screw 602, and a movable rod 603. The outer sleeve 601 is a hollow tube, and its end is fixed to the fixed beam 401. The end of the diagonal brace 403 is also fixed below the outer sleeve 601. The movable rod 603 is slidably inserted into the outer sleeve 601. The locking screw 602 is located outside the outer sleeve 601, and its lower end can press against the movable rod 603 to lock it. A limiting structure is provided at the end of the outer sleeve 601 to prevent the end of the movable rod 603 from coming out. A spring can also be provided between the movable rod 603 and the inner bottom of the outer sleeve 601. When a spring is provided, the elastic extension of the telescopic rod helps the ladder protection structure 5 to automatically fit against the ladder 2.
[0020] The ladder protection structure 5 includes a connecting beam 501 rotatably connected to the telescopic end of the telescopic connection structure 6. One connecting beam 501 is connected to the telescopic ends of two telescopic connection structures 6. The connecting beam 501 is provided with a guide groove. The crossbar hook 502 is hinged to the extended part of the sliding seat 504. The sliding seat 504 and the guide groove are transitionally fitted to allow the connecting beam 501 to slide. By setting the crossbar hook 502 that allows the connecting beam 501 to slide, the distance between the crossbar hooks 502 can be changed by sliding, thus making it suitable for telescopic ladders of different widths. Because the ladder 2 usually slides vertically rather than simply horizontally, it can cause the sliding seat 504 to deflect vertically. Therefore, the transitional fit allows the sliding seat 504 to slowly adjust the distance while preventing the ladder 2 from sliding too much during large-scale sliding.
[0021] The cross-section of the connecting beam 501 is C-shaped. The telescopic end of the telescopic connecting structure 6 is inserted into the C-shaped inner groove of the connecting beam 501 and is hinged to the connecting beam 501 through a hinge shaft. The guide groove is a T-shaped groove extending in the same direction in the C-shaped inner groove. The guide groove is located between a pair of telescopic connecting structures 6 and has a limiting structure at both ends to prevent the sliding seat 504 from falling out.
[0022] The extended portion of the sliding seat 504 is equipped with a pivot shaft aligned with the connecting beam 501. The crossbar hook 502 includes a support portion covering the connecting beam 501. The inner end of the support portion is bent downwards and rotatably connected to the pivot shaft to form a hinge. The outer end of the support portion is bent to form a hook-shaped portion that can hook onto the crossbar of the ladder. This structure allows the ladder 2 to slide downwards. When the crossbar hook 502 is pressed down by the crossbar, the support portion forces the entire connecting beam 501, while the hinged portion clamps the sliding seat 504 to the connecting beam 501, making it difficult for the sliding seat 504 to move laterally and thus preventing further movement of the ladder 2. The hook-shaped portion is fixed with the rope 503 and a fastening element for tightening the rope 503.
[0023] In this procedure, the telescopic ladder is first extended to a suitable length and then placed against the side of the mounting surface 1 of the photovoltaic module to be maintained, with the upper end of the ladder pressing against the connecting beam 501. Once the ladder 2 is initially stable, the maintenance personnel climb the ladder 2 to the height of the photovoltaic module. At this point, the connecting beam 501 should be flush against the side of the upper end of the ladder 2. The maintenance personnel use tools to tighten the locking screw 602 to secure the movable rod 603. Then, the crossbar hook 502 is flipped so that the hook-shaped part faces outward and the opening faces upward, allowing it to hook onto the crossbar of the ladder section. The crossbar hook 502 is then smoothly moved along the connecting beam 501 until the two outermost crossbar hooks 502 are close to the corresponding side uprights. Finally, the rope 503 on the outermost crossbar hook 502 is looped around the corresponding side upright on the ladder section and the movable end of the rope 503 is tightened to secure it, completing the connection between the outermost crossbar hook 502 and the ladder section.
[0024] If ladder 2 is subsequently subjected to lateral force, due to the transition fit between the sliding seat 504 and the T-slot, and the vertical force exerted when ladder 2 slides as a whole, the sliding seat 504 is difficult to move, thus effectively hindering the lateral movement of ladder 2. When ladder 2 slides downwards, whether it is a complete slide or a sliding of the telescopic part of ladder 2, the rope 503 will limit the sliding of ladder 2. Furthermore, when the section of the ladder above the crossbar hook 502 slides down and is hooked by the crossbar hook 502, the auxiliary device can effectively prevent ladder 2 from sliding further down, thereby ensuring the safety of maintenance personnel.
[0025] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.
Claims
1. An auxiliary device applied to a telescopic ladder of a photovoltaic power station, characterized in that: The system includes a fixed installation structure, a telescopic connection structure, and a ladder protection structure. The fixed installation structure is installed on the fixed bracket of the photovoltaic module. The fixed end of the telescopic connection structure is fixedly connected to the fixed installation structure, and the telescopic end of the telescopic connection structure faces outward. The ladder protection structure is arranged in the same direction as the fixed installation structure. The upper part of the ladder abuts against the outside of the ladder protection structure. The ladder protection structure is provided with crossbar hooks. There are no fewer than two crossbar hooks, which are arranged along the setting direction of the ladder protection structure. The side uprights on both sides of the ladder are respectively connected to the corresponding crossbar hooks by ropes fixed to the crossbar hooks. The crossbar hooks are used to hook the crossbars of the ladder when the ladder slides.
2. The auxiliary device applied to the telescopic ladder of the photovoltaic power station according to claim 1, characterized in that: The fixed installation structure includes a fixed beam, a support leg, and a diagonal brace. The fixed beam is fixedly connected to the fixed bracket by screws. The support leg is fixed under the fixed beam and supported on the mounting surface of the fixed bracket. The diagonal brace is inclined, with one end fixed to the support leg and the other end fixed to the telescopic connection structure.
3. The auxiliary device applied to the telescopic ladder of the photovoltaic power station according to claim 2, characterized in that: The telescopic connection structure is a telescopic rod, which includes an outer sleeve, a locking screw, and a movable rod. The outer sleeve is a hollow tube, and the end of the outer sleeve is fixed to the fixed beam. The movable rod is slidably inserted into the outer sleeve, and the locking screw is located outside the outer sleeve and its lower end can press against the movable rod.
4. The auxiliary device applied to the telescopic ladder of the photovoltaic power station according to claim 1, characterized in that: The ladder protection structure includes a connecting beam that is rotatably connected to the telescopic end of the telescopic connection structure. One connecting beam is connected to the telescopic ends of two telescopic connection structures. The connecting beam is provided with a guide groove. The crossbar hook is hinged to the extended part of the sliding seat. The sliding seat and the guide groove are transitionally fitted to allow the connecting beam to slide.
5. The auxiliary device for the telescopic ladder of the photovoltaic power station according to claim 4, characterized in that: The crossbar hook includes a support portion covering the connecting beam. The inner end of the support portion is bent downwards and rotatably connected to the sliding seat through a pivot to form a hinge portion. The outer end of the support portion is bent to form a hook-shaped portion that can hook onto the crossbar of the stair section.
6. An auxiliary device applied to a telescopic ladder of a photovoltaic power station according to claim 5, characterized in that: The hook-shaped part is fixed with the rope and the fastening member for tightening the rope.