Nut anti-skid device for fastening bolt of photovoltaic module
By designing an anti-slip device for the nuts used to fasten photovoltaic module bolts, the problem of easy loosening of photovoltaic module bolts was solved, enabling fast and safe fastening operations and improving the wind resistance, tensile strength, and construction safety of photovoltaic modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWER CHINA HENAN ENG CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-19
AI Technical Summary
Existing photovoltaic module bolts are prone to loosening in outdoor environments, resulting in reduced wind and tensile strength. Traditional fastening methods are cumbersome and pose safety hazards.
Design a nut anti-slip device for fastening photovoltaic module bolts, including an L-shaped bracket, a screw, a plug, and a nut sleeve. The screw is used to fix the photovoltaic bracket, and the nut sleeve is used to clamp the nut to prevent slippage and simplify the operation.
It improves the efficiency and safety of bolt tightening, avoids the risk of wrench falling, simplifies the operation process, and enhances the construction safety of workers.
Smart Images

Figure CN224255260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary device for bolt and nut fastening, and particularly to an anti-slip device for nuts used in fastening bolts of photovoltaic modules, belonging to the field of photovoltaic operation and maintenance technology. Background Technology
[0002] With the rapid development of the photovoltaic industry, photovoltaic power generation, as a clean and renewable energy source, has been widely applied. The scale of photovoltaic power plant construction is constantly expanding, and more and more photovoltaic modules are being installed outdoors to convert solar energy into electricity. However, during the long-term operation of photovoltaic power plants, the maintenance and upkeep of photovoltaic modules are crucial, with bolt tightening being a vital aspect of photovoltaic operation and maintenance.
[0003] Photovoltaic modules are typically bolted to supports to ensure their stability under various environmental conditions. However, over time and due to the influence of the on-site environment, these bolts can loosen. Loose bolts reduce the wind and tensile strength of the photovoltaic modules, especially in strong winds, making them susceptible to being blown over, resulting in power generation loss, or even damage to the modules themselves, thus affecting the normal operation of the photovoltaic power station.
[0004] To ensure the safe and stable operation of photovoltaic power stations, it is necessary to regularly inspect and tighten the bolts of photovoltaic modules. However, traditional bolt tightening methods have many problems. When performing tightening work, workers usually need to use two wrenches to tighten the screws and nuts. This method is cumbersome and complicated. Moreover, in high-altitude working environments, using two wrenches at the same time can easily cause the wrenches to fall, which can not only injure workers but also pose a significant safety hazard. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a nut anti-slip device for fastening photovoltaic module bolts, which can quickly clamp and fix the nut, making it convenient for workers to tighten the bolts, improving work efficiency, ensuring construction safety, and being easy to use and operate.
[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0007] A nut anti-slip device for fastening photovoltaic module bolts includes an L-shaped bracket, a screw, and a plug. The upper end of the L-shaped bracket is provided with a first guide sleeve, and the screw is threadedly connected inside the first guide sleeve. The top of the screw is provided with a handle, and the bottom of the screw is provided with a rubber pressure plate. The bottom of the L-shaped bracket is provided with a second guide sleeve, and the plug is provided inside the second guide sleeve. The right end of the plug is provided with a circular end plate, and a nut sleeve is provided above the circular end plate.
[0008] The outer wall of the second guide sleeve is provided with a tightening bolt, and the insertion rod passes through the second guide sleeve and is fixedly connected together by the tightening bolt.
[0009] The bottom of the nut sleeve is provided with a base plate, which is set on a circular end plate. The center of the base plate and the center of the circular end plate are respectively provided with circular through holes, and the inner diameter of the circular through holes is smaller than the inner wall size of the nut sleeve.
[0010] The inner diameter of the circular through hole is larger than the outer diameter of the screw.
[0011] The dimensions of the inner wall of the nut sleeve match the external dimensions of the nut.
[0012] The length of the top of the L-shaped bracket is less than the length of the insertion rod.
[0013] The positive and beneficial effects of this utility model are:
[0014] This invention enables the device to be fixedly connected to the photovoltaic bracket by providing a screw in the first guide sleeve; by providing a nut sleeve above the circular end plate, the nut can be clamped and fixed, preventing the nut from slipping when tightening the bolt, eliminating the need for a wrench, and preventing the wrench from falling, making it convenient to use and simple to operate.
[0015] 2. This utility model has a plug rod inserted in the second guide sleeve, which can freely adjust the extension length of the plug rod according to the position of the nut, making it convenient for workers to quickly tighten the bolts and improving work efficiency.
[0016] 3. This utility model has circular through holes drilled in the chassis and circular end plate respectively, which are suitable for fastening bolts of different lengths, thereby improving the efficiency and safety of bolt fastening of photovoltaic modules. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the L-shaped support of this utility model;
[0019] Figure 3This is a schematic diagram of the chassis and nut sleeve of this utility model;
[0020] Wherein: 1-L-shaped bracket, 2-first guide sleeve, 3-screw, 4-handle, 5-rubber pressure plate, 6-second guide sleeve, 7-insertion rod, 8-circular end plate, 801-circular through hole, 9-tightening bolt, 10-base plate, 11-nut sleeve. Detailed Implementation
[0021] The present invention will be further explained and described below with reference to the accompanying drawings:
[0022] See the example. Figures 1-3 A nut anti-slip device for fastening photovoltaic module bolts includes an L-shaped bracket 1, a screw 3, and a plug rod 7. A first guide sleeve 2 is provided at the upper end of the L-shaped bracket 1. The screw 3 is threadedly connected inside the first guide sleeve 2. A support 4 is provided at the top of the screw 3. A rubber pressure plate 5 is provided at the bottom of the screw 3. A second guide sleeve 6 is provided at the bottom of the L-shaped bracket 1. The plug rod 7 is provided inside the second guide sleeve 6. A circular end plate 8 is provided at the right end of the plug rod 7. A nut sleeve 11 is provided above the circular end plate 8.
[0023] A tightening bolt 9 is provided on the outer wall of the second guide sleeve 6, and the insertion rod 7 passes through the second guide sleeve 6 and is fixedly connected together by the tightening bolt 9.
[0024] A base plate 10 is provided at the bottom of the nut sleeve 11. The base plate 10 is set on the circular end plate 8. A circular through hole 801 is provided at the center of the base plate 10 and the center of the circular end plate 8 respectively. The inner diameter of the circular through hole 801 is smaller than the inner wall size of the nut sleeve 11.
[0025] The inner diameter of the circular through hole 801 is larger than the outer diameter of the screw.
[0026] The inner dimensions of the nut sleeve 11 match the outer dimensions of the nut.
[0027] The length of the top of the L-shaped bracket 1 is less than the length of the insertion rod 7.
[0028] In the above description, the circular through holes on the circular end plate correspond vertically to the circular through holes on the chassis. The circular through hole ratio is greater than the outer diameter of the bolt and smaller than the internal size of the nut sleeve.
[0029] In the above description, there are two support handles, which are respectively set on both sides of the top of the screw.
[0030] Working principle:
[0031] When using the device, adjust the length of the insert rod according to the position of the bolt so that the nut is inside the nut sleeve. Then, use the screw to fix the device to the photovoltaic bracket. Finally, use a screwdriver to tighten the bolt. During this process, the nut will not slip, which makes it easy for workers to tighten the bolt quickly and avoids the use of a wrench, thus ensuring the safety of construction.
[0032] This invention enables the device to be fixedly connected to the photovoltaic bracket by providing a screw in the first guide sleeve; by providing a nut sleeve above the circular end plate, the nut can be clamped and fixed, which facilitates the workers to tighten the bolts quickly, reduces the use of wrenches, and avoids the situation of the wrench falling. It is convenient to use and simple to operate.
Claims
1. A nut anti-slip device for fastening photovoltaic module bolts, comprising an L-shaped bracket (1), a screw (3), and a plug (7), characterized in that: The upper end of the L-shaped bracket (1) is provided with a first guide sleeve (2), and a screw (3) is connected to the first guide sleeve (2) by a thread. The top of the screw (3) is provided with a handle (4), and the bottom of the screw (3) is provided with a rubber pressure plate (5). The bottom of the L-shaped bracket (1) is provided with a second guide sleeve (6), and an insertion rod (7) is provided inside the second guide sleeve (6). The right end of the insertion rod (7) is provided with a circular end plate (8), and a nut sleeve (11) is provided above the circular end plate (8).
2. The anti-slip device for nut fastening of photovoltaic module bolts according to claim 1, characterized in that: The outer wall of the second guide sleeve (6) is provided with a tightening bolt (9), and the insert rod (7) passes through the second guide sleeve (6) and is fixedly connected together by the tightening bolt (9).
3. The anti-slip device for nut fastening of photovoltaic module bolts according to claim 1, characterized in that: The bottom of the nut sleeve (11) is provided with a base plate (10), which is set on a circular end plate (8). The center of the base plate (10) and the center of the circular end plate (8) are respectively provided with circular through holes (801). The inner diameter of the circular through holes (801) is smaller than the inner wall size of the nut sleeve (11).
4. The anti-slip device for nut fastening of photovoltaic module bolts according to claim 3, characterized in that: The inner diameter of the circular through hole (801) is larger than the outer diameter of the screw.
5. The anti-slip device for nut fastening of photovoltaic module bolts according to claim 3, characterized in that: The inner wall dimensions of the nut sleeve (11) match the outer dimensions of the nut.
6. The anti-slip device for nut fastening of photovoltaic module bolts according to claim 1, characterized in that: The length of the top of the L-shaped bracket (1) is less than the length of the insertion rod (7).