Photovoltaic module bolt fastening device
By combining an exoskeleton structure with a telescopic arm, the photovoltaic module bolt fastening device solves the safety risks and inconvenience of carrying bolts at high locations during the operation and maintenance of photovoltaic power plants, thereby reducing the intensity of operation and maintenance and improving the stability of the device.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA NUCLEAR HUINENG JIANGSU ENERGY CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-31
AI Technical Summary
In the operation and maintenance of photovoltaic power plants, there are safety risks when tightening bolts at high locations, and the existing equipment is heavy and inconvenient to carry. The application of exoskeletons in the power industry has not yet addressed the issue of reducing the intensity of photovoltaic operation and maintenance work.
A photovoltaic module bolt fastening device was designed, which combines an exoskeleton structure and a telescopic arm to achieve high-level bolt fastening using an electric wrench. The exoskeleton structure reduces the workload of maintenance personnel, and the balancing mechanism improves the stability of the device.
It reduces the workload of maintenance personnel, improves the stability and flexibility of the equipment, facilitates fastening operations in different locations, and reduces the need for climbing.
Smart Images

Figure CN224575667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a photovoltaic module operation and maintenance device, and more particularly to a photovoltaic module bolt fastening device. Background Technology
[0002] In the operation and maintenance of photovoltaic power plants, tightening the bolts of photovoltaic modules is a routine task. When tightening bolts at high locations, maintenance personnel need to stand above the photovoltaic modules to perform the operation, which poses a safety risk. CN 223186433 U discloses a bolt tightening and loosening device that uses an adjustable-length bracket in conjunction with an electric ratchet wrench and a camera to automatically tighten and loosen bolts in confined spaces or at high locations. This tightening and loosening method does not rely on manual climbing, reducing the risk of personnel falling. However, this device lacks an additional support base, is relatively heavy, and is inconvenient to carry.
[0003] Exoskeletons are wearable mechanical devices used to enhance human strength. They are already used in the power and material handling industries. For example, CN117901064A discloses an auxiliary device for installing power transformer plugs using an exoskeleton, and CN114378790A discloses a full-body exoskeleton for material handling assistance. How to use exoskeletons to reduce the workload of photovoltaic operation and maintenance is a problem that needs to be solved. Utility Model Content
[0004] Purpose of the utility model: The purpose of this utility model is to provide a photovoltaic module bolt fastening device that can reduce the workload of photovoltaic operation and maintenance.
[0005] Technical solution: The present invention provides a photovoltaic module bolt fastening device, comprising a bolt fastening mechanism and an exoskeleton structure. The bolt fastening mechanism includes a telescopic arm, an electric wrench, and a first support frame. The electric wrench and the first support frame are respectively connected to the two ends of the telescopic arm. The back of the first support frame and the exoskeleton structure are rotatably connected.
[0006] Preferably, the rear end of the first support frame is provided with a second support frame perpendicular to the first support frame, the rear end of the first support frame and the second support frame are rotatably connected, and the rear end of the second support frame is rotatably connected to the back of the exoskeleton mechanism through the base.
[0007] Preferably, the first support frame has a flat plate in the middle and a handle for controlling the rotation of the first support frame and the second support frame, the extension and retraction of the telescopic arm, and the operation of the electric wrench.
[0008] Preferably, the base is provided with a balancing mechanism for balancing the torque of the first support frame. The balancing mechanism includes a support plate and a balancing block. The support plate is connected to the base, and the balancing block is slidably connected to the support plate.
[0009] Preferably, the support plate has a strip groove in the middle, and the balance block is slidably connected to the support plate through the strip groove.
[0010] Preferably, the balance block is equipped with a motor and a gear, and the support plate has a rack in a groove, with the gear and rack meshing.
[0011] Preferably, the exoskeleton structure includes an integrally connected shoulder wear structure, lower limb support structure, and back support structure, with the base and the back support structure of the exoskeleton structure being rotatably connected.
[0012] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. Reduced workload: The use of an exoskeleton structure in conjunction with a telescopic mechanism to achieve high-level bolt tightening eliminates the need for climbing, reducing the stress on the human body and lowering the workload of maintenance personnel; 2. High device stability; 3. The bolt tightening device is installed on the exoskeleton device, allowing maintenance personnel to directly wear the exoskeleton to the site for tightening, improving work flexibility and facilitating the switching of work sites. Attached Figure Description
[0013] Figure 1 A side view of the structure of the photovoltaic module bolt fastening device;
[0014] Figure 2 A front view of the structure of the photovoltaic module bolt fastening device;
[0015] Figure 3 Rear view of the photovoltaic module bolt fastening device;
[0016] Figure 4 This is a top view of the structure of the photovoltaic module bolt fastening device. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0018] like Figures 1 to 4As shown, the photovoltaic module bolt fastening device mainly consists of two parts: an exoskeleton structure and a bolt fastening mechanism. The exoskeleton structure includes a shoulder wear structure 9, a lower limb support structure 10, and a back support structure 2. These three structures are connected as a whole. The shoulder wear structure 9 includes conventional fixing structures such as a waist belt and shoulder straps. The lower limb support structure 10 is height-adjustable to accommodate maintenance personnel of different heights. The bolt fastening mechanism includes a telescopic arm 7, an electric wrench 8, and a first support frame 5. The electric wrench 8 is located at the front end of the telescopic arm 7, and the first support frame 5 is located at the rear end of the telescopic arm 7. The first support frame 5 and the telescopic arm 7 are rotatably connected, and the telescopic arm 7 rotates around the first support frame 5 to adjust the angle between the telescopic arm 7 and the first support frame 5. The rear end of the first support frame 5 is rotatably connected to the back of the second support frame 4, the base 3, and the exoskeleton structure, so that the height and orientation (the tilt angle relative to the exoskeleton structure) of the first support frame 5 can be matched with the operator's dominant hand and the photovoltaic modules that need to be maintained. Specifically, the first support frame 5 and the second support frame 4 form a certain angle, preferably vertical. The rear end of the first support frame 5 and the front end of the second support frame 4 are rotatably connected. The rear end of the second support frame 4 is rotatably connected to the back support structure through the base 3. The second support frame 4 can rotate around the base 3. The first support frame 5 can rotate relative to the second support frame 4 or rotate with the second support frame 4 around the base 3.
[0019] The first support frame 5 has a flat plate in the middle, a handle 6 for supporting the operator's arm, and a handle 6 for controlling the rotation of the first support frame 5, the extension and retraction of the telescopic arm 7, and the operation of the electric wrench 8. The telescopic arm 7 has a three-section arm structure, and the extension and retraction length is adjusted by the maintenance personnel through the handle 6 according to the distance requirements of the photovoltaic modules.
[0020] like Figure 3 A balancing mechanism 11 is provided on the base 3. The balancing mechanism 11 includes a support plate 111 and a balancing block 114. The support plate 111 is fixedly connected to the base 3, and the balancing block 114 is slidably connected to the support plate 111 to balance the torque of the first support frame 5. Specifically, a strip groove is provided in the middle of the support plate 111, and the balancing block 114 is slidably connected to the support plate 111 through the strip groove, which facilitates the adjustment of the distance between the balancing block 114 and the bolt fastening mechanism. A motor 112 and a gear are provided on the balancing block 114, and a rack 113 is provided in the strip groove of the support plate 111. The gear and the rack mesh, and the motor 112 drives the gear to rotate. The gear rolls along the rack to realize the automatic adjustment of the position of the balancing block 114. The motor 112 can also be set on the support plate 111, but in order to use the weight of the motor 112 as a counterweight, it is preferable to set the motor 112 on the balancing block 114.
Claims
1. A photovoltaic module bolt fastening device, characterized by, It includes a bolt fastening mechanism and an exoskeleton structure. The bolt fastening mechanism includes a telescopic arm (7), an electric wrench (8), and a first support frame (5). The two ends of the telescopic arm (7) are respectively connected to the electric wrench (8), the first support frame (5), and the back of the exoskeleton structure.
2. The photovoltaic module bolt fastening device of claim 1, wherein, The rear end of the first support frame (5) is provided with a second support frame (4) that is perpendicular to the first support frame (5). The rear end of the first support frame (5) and the second support frame (4) are rotatably connected. The rear end of the second support frame (4) is rotatably connected to the back of the exoskeleton structure through the base (3).
3. A photovoltaic module bolt fastening device according to claim 1 or 2, characterized in that, The first support frame (5) has a flat plate in the middle and a handle (6) for controlling the rotation of the first support frame (5) and the second support frame (4), the extension and retraction of the telescopic arm (7), and the operation of the electric wrench (8).
4. The photovoltaic module bolt fastening device of claim 2, wherein, The base (3) is provided with a balancing mechanism (11) for balancing the torque of the first support frame (5). The balancing mechanism (11) includes a support plate (111) and a balancing block (114). The support plate (111) is connected to the base (3), and the balancing block (114) is slidably connected to the support plate (111).
5. The photovoltaic module bolt fastening device of claim 4, wherein, The support plate (111) has a strip groove in the middle, and the balance block (114) is slidably connected to the support plate (111) through the strip groove.
6. The photovoltaic module bolt fastening device of claim 5, wherein, The balance block (114) is equipped with a motor (112) and a gear, and the rack (113) is provided in the strip groove, with the gear and rack meshing.
7. The photovoltaic module bolt fastening device of claim 2, wherein, The exoskeleton structure includes an integrally connected shoulder wear structure (9), lower limb support structure (10), and back support structure (2), with the base (3) and the back support structure (2) rotatably connected at the back.
8. The photovoltaic module bolt fastening device of claim 7, wherein, The lower limb support structure (10) is a telescopic lower limb support structure.