A photovoltaic support purlin connector
By designing a combination of sliders, limit plates, positive and negative threaded rods, and gears, the problems of low installation efficiency and inconvenient adjustment of traditional photovoltaic bracket purlin connectors are solved, enabling rapid and stable installation of purlins and improving installation efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN ZHONGYI MANUFACTURING CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional photovoltaic bracket purlin connectors have low installation efficiency and are inconvenient to adjust when connecting the inclined beam to the purlin body, which affects the purlin erection efficiency.
A photovoltaic bracket purlin connector was designed. By using a slider and a limiting plate in conjunction with the rotation of the positive and negative threaded rods, the gear drives the clamping plate to hold the inclined beam. With the help of the auxiliary plate and the limiting groove, the purlin can be quickly and stably erected.
This enables rapid installation and stable erection of purlins, improves installation efficiency, and ensures the stability and ease of adjustment of purlins on inclined beams.
Smart Images

Figure CN224289669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic bracket purlin technology, specifically a photovoltaic bracket purlin connector. Background Technology
[0002] Photovoltaic bracket purlin connectors are key components used in photovoltaic power generation systems to fix the connection between photovoltaic modules. Their main function is to transmit and distribute the force and stress between them.
[0003] Traditional photovoltaic bracket purlin connectors use screws to fix the purlin body and the auxiliary inclined beam when connecting them. However, the traditional method requires repeated and continuous screw rotation, which affects the installation efficiency of the inclined beam and purlin body. Furthermore, the traditional method requires adjusting the purlin position as needed during purlin erection, which further affects the purlin erection adjustment efficiency. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a photovoltaic support purlin connector to solve the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a photovoltaic bracket purlin connector, including an inclined beam, a purlin body is provided on the top of the inclined beam, a slider is slidably connected to the inner wall of the inclined beam, a U-shaped frame is fixedly mounted on the side of the slider, a first sliding groove is provided on the top of the slider, a circular groove is provided at the bottom of the inner wall of the first sliding groove, a limit groove is provided at the top of the inner wall of the circular groove, a second sliding groove is provided at the bottom of the inner wall of the purlin body, a circular rod is fixedly mounted on the top of the U-shaped frame, and an auxiliary plate is rotatably connected to the top of the circular rod.
[0006] As a preferred embodiment of this utility model, the inner wall of the U-shaped frame is rotatably sleeved with a positive threaded rod, the bottom of the inner wall of the U-shaped frame is fixedly fitted with a fixing plate, the side of the positive threaded rod is fixedly fitted with a negative threaded rod, and the outer edges of both the negative threaded rod and the positive threaded rod are rotatably sleeved with the inner wall of the fixing plate. The outer edges of both the positive threaded rod and the negative threaded rod are threadedly connected with clamping plates, and the inner wall of the clamping plates is fixedly fitted with rubber pads.
[0007] As a preferred technical solution of this utility model, an auxiliary groove is provided at the bottom of the inner wall of the purlin body, and the shape and size of the inner wall of the auxiliary groove are adapted to the shape and size of the outer edge of the auxiliary plate.
[0008] As a preferred embodiment of this utility model, a spring is fixedly connected to the bottom of the inner wall of the circular groove, a push plate is fixedly connected to the top of the spring, a limiting plate is overlapped on the top of the push plate, and the outer edge of the limiting plate is engaged with the inner wall of the limiting groove.
[0009] As a preferred technical solution of this utility model, the shape and size of the outer edge of the limiting plate are adapted to the shape and size of the inner wall of the first slide groove and the inner wall of the second slide groove, and an adjusting rod is fixedly mounted on the top of the limiting plate.
[0010] As a preferred embodiment of this utility model, a gear is fixedly mounted on the side of the positive threaded rod, a positioning frame is fixedly mounted on the side of the U-shaped frame, a second spring is fixedly connected to the top of the inner wall of the positioning frame, and a toothed plate is fixedly connected to the bottom of the second spring. The protruding teeth at the bottom of the toothed plate mesh with the protruding teeth on the outer edge of the gear. The side of the toothed plate is slidably connected to the inner wall of the positioning frame, and a pull rod is fixedly mounted on the top of the toothed plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This photovoltaic bracket purlin connector uses a slider and a limiting plate in cooperation. The slider moves within the inner wall of the inclined beam, and then the bottom of the purlin body overlaps the top of the slider. An adjusting rod then moves the outer edge of the limiting plate through the inner walls of the second and first slide grooves to the inner cavity of the circular groove. The adjusting rod is then rotated and released, causing a spring to push the push plate upwards within the circular groove. This push plate assists in positioning the outer edge of the limiting plate against the inner wall of the limiting groove, thus aiding in the rapid erection of the purlin body. The outer edge of the auxiliary plate passes through the inner wall of the auxiliary groove to the inner wall of the purlin body. Rotating the auxiliary plate then overlaps the bottom of the auxiliary plate with the bottom of the inner wall of the purlin body, further ensuring the stability of the purlin body during erection.
[0013] 2. The photovoltaic bracket purlin connector uses a toothed plate and a gear in cooperation. The pull rod drives the toothed plate to separate from the toothed outer edge of the gear. Then, the gear is rotated, which drives the positive thread rod and the negative thread rod to rotate. The positive thread rod and the negative thread rod drive the side of the clamping plate to slide in the inner wall of the U-shaped frame. The clamping plate drives the rubber pad and the side of the inclined beam to clamp and limit the purlin body, thus ensuring that the purlin body is limited. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic cross-sectional view of the U-shaped frame structure of this utility model;
[0016] Figure 3This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0017] Figure 4 This is a partial disassembly diagram of the present invention;
[0018] Figure 5 This is a schematic cross-sectional view of the gear structure of this utility model;
[0019] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Inclined beam; 2. Purlin body; 3. Slider; 4. U-shaped frame; 5. Slide groove one; 6. Circular groove; 7. Limiting groove; 8. Spring one; 9. Push plate; 10. Round rod; 11. Auxiliary plate; 12. Auxiliary groove; 13. Slide groove two; 14. Gear; 15. Positive thread rod; 16. Negative thread rod; 17. Fixing plate; 18. Clamping plate; 19. Rubber pad; 20. Positioning frame; 21. Pull rod; 22. Spring two; 23. Toothed plate; 24. Adjusting rod; 25. Limiting plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-6 A photovoltaic bracket purlin connector includes an inclined beam 1, a purlin body 2 at the top of the inclined beam 1, a slider 3 slidably connected to the inner wall of the inclined beam 1, a U-shaped frame 4 fixedly mounted on the side of the slider 3, a sliding groove 5 at the top of the slider 3, a circular groove 6 at the bottom of the inner wall of the sliding groove 5, a limiting groove 7 at the top of the inner wall of the circular groove 6, a sliding groove 13 at the bottom of the inner wall of the purlin body 2, and a circular rod 10 fixedly mounted on the top of the U-shaped frame 4. An auxiliary plate 11 is rotatably connected to the top of the circular rod 10. Through the cooperation of the slider 3 and the U-shaped frame 4, the side of the slider 3 slides in the inner wall of the inclined beam 1, and the slider 3 drives the inner wall of the U-shaped frame 4 to slide on the side of the inclined beam 1, thereby facilitating the limiting of the purlin body 2 after the slider 3 and the U-shaped frame 4 are connected to it.
[0023] In a preferred embodiment, a positive threaded rod 15 is rotatably sleeved on the inner wall of the U-shaped frame 4, a fixing plate 17 is fixedly mounted on the bottom of the inner wall of the U-shaped frame 4, and a negative threaded rod 16 is fixedly mounted on the side of the positive threaded rod 15. The outer edges of the negative threaded rod 16 and the positive threaded rod 15 are rotatably sleeved on the inner wall of the fixing plate 17. The outer edges of the positive threaded rod 15 and the negative threaded rod 16 are threadedly connected to clamping plates 18. Rubber pads 19 are fixedly mounted on the inner wall of the clamping plates 18. With the addition of the fixing plate 17, the positive threaded rod 15 and the negative threaded rod 16 are stably mounted. The positive threaded rod 15 and the negative threaded rod 16 rotate, thereby driving the two clamping plates 18 to move towards each other. Then, the two clamping plates 18 drive the sides of the two rubber pads 19 to be tightly attached to the sides of the inclined beam 1, ensuring that the slider 3 and the U-shaped frame 4 are stably limited.
[0024] In a preferred embodiment, an auxiliary groove 12 is provided at the bottom of the inner wall of the purlin body 2, and the shape and size of the inner wall of the auxiliary groove 12 are adapted to the shape and size of the outer edge of the auxiliary plate 11. Through the cooperation of the auxiliary groove 12 and the auxiliary plate 11, the outer edge of the auxiliary plate 11 passes through the inner wall of the auxiliary groove 12 to the top of the auxiliary groove 12, and then the auxiliary plate 11 is rotated so that the bottom of the auxiliary plate 11 is limited to the bottom of the inner wall of the purlin body 2.
[0025] In a preferred embodiment, a spring 8 is fixedly connected to the bottom of the inner wall of the circular groove 6, and a push plate 9 is fixedly connected to the top of the spring 8. The top of the push plate 9 overlaps with a limiting plate 25, and the outer edge of the limiting plate 25 is engaged with the inner wall of the limiting groove 7. Through the cooperation of the spring 8 and the push plate 9, the outer edge of the limiting plate 25 is engaged with the inner wall of the limiting groove 7 for limiting, and the spring 8 pushes the push plate 9 upward in the inner wall of the circular groove 6, thereby using the push plate 9 to push the outer edge of the limiting plate 25 to be stably limited with the inner wall of the limiting groove 7.
[0026] In a preferred embodiment, the shape and size of the outer edge of the limiting plate 25 are adapted to the shape and size of the inner wall of the first slide 5 and the inner wall of the second slide 13. An adjusting rod 24 is fixedly mounted on the top of the limiting plate 25. Through the cooperation of the adjusting rod 24 and the limiting plate 25, the limiting plate 25 can be conveniently adjusted in position by the adjusting rod 24. The outer edge of the limiting plate 25 passes through the inner wall of the second slide 13 and the inner wall of the first slide 5 in sequence to the inner wall of the circular groove 6, thereby assisting the purlin body 2 and the slider 3 in limiting their positions.
[0027] In a preferred embodiment, a gear 14 is fixedly mounted on the side of the positive thread rod 15, and a positioning frame 20 is fixedly mounted on the side of the U-shaped frame 4. A spring 22 is fixedly connected to the top of the inner wall of the positioning frame 20, and a toothed plate 23 is fixedly connected to the bottom of the spring 22. The protruding teeth at the bottom of the toothed plate 23 mesh with the protruding teeth on the outer edge of the gear 14. The side of the toothed plate 23 is slidably connected to the inner wall of the positioning frame 20. A pull rod 21 is fixedly mounted on the top of the toothed plate 23. Through the cooperation of the pull rod 21 and the toothed plate 23, the pull rod 21 drives the protruding teeth of the toothed plate 23 to separate from the protruding teeth on the outer edge of the gear 14. Thus, the gear 14 drives the positive thread rod 15 and the negative thread rod 16 to rotate. After the position is adjusted by the clamping plate 18, the pull rod 21 is released, and the spring 22 pushes the toothed plate 23 to move, thereby ensuring that the protruding teeth of the toothed plate 23 and the protruding teeth on the outer edge of the gear 14 are stably limited.
[0028] Working principle: When the device is in use, the side of the slider 3 slides within the inner wall of the inclined beam 1, and the slider 3 drives the inner wall of the U-shaped frame 4 to slide along the side of the inclined beam 1. Then, the pull rod 21 is moved away from the gear 14, thereby causing the toothed plate 23 to separate from the toothed outer edge of the gear 14. Then, the gear 14 is rotated, thereby driving the positive thread rod 15 and the negative thread rod 16 to rotate. In turn, the positive thread rod 15 and the negative thread rod 16 drive the two clamping plates 18 to move towards each other, assisting the two rubber pads 19 in clamping and limiting the two sides of the inclined beam 1. Next, the bottom of the purlin body 2 is connected to the top of the slider 3, and the outer edge of the auxiliary plate 11 passes through the inner wall of the auxiliary groove 12 to the top of the auxiliary groove 12. Then, the auxiliary plate 11 is rotated so that the bottom of the auxiliary plate 11 is limited to the bottom of the inner wall of the purlin body 2. The outer edge of the limiting plate 25 is driven by the adjusting rod 24 to pass through the inner wall of the second slide groove 13 and the inner wall of the first slide groove 5 to the inner cavity of the circular groove 6. After rotating the adjusting rod 24, it is released, so that the spring 8 pushes the push plate 9 to move the limiting plate 25 upward. The outer edge of the auxiliary limiting plate 25 is stably limited to the inner wall of the limiting groove 7.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic bracket purlin connector, comprising a diagonal beam (1), characterized in that: The top of the inclined beam (1) is provided with a purlin body (2), the inner wall of the inclined beam (1) is slidably connected with a slider (3), the side of the slider (3) is fixedly fitted with a U-shaped frame (4), the top of the slider (3) is provided with a sliding groove (5), the bottom of the inner wall of the sliding groove (5) is provided with a circular groove (6), the top of the inner wall of the circular groove (6) is provided with a limiting groove (7), the bottom of the inner wall of the purlin body (2) is provided with a sliding groove (13), the top of the U-shaped frame (4) is fixedly fitted with a round rod (10), and the top of the round rod (10) is rotatably connected with an auxiliary plate (11).
2. A photovoltaic bracket purlin connector according to claim 1, characterized in that: The inner wall of the U-shaped frame (4) is rotatably fitted with a positive thread rod (15). A fixing plate (17) is fixedly fitted at the bottom of the inner wall of the U-shaped frame (4). A negative thread rod (16) is fixedly fitted on the side of the positive thread rod (15). The outer edges of the negative thread rod (16) and the outer edges of the positive thread rod (15) are rotatably fitted with the inner wall of the fixing plate (17). The outer edges of the positive thread rod (15) and the outer edges of the negative thread rod (16) are threadedly connected with a clamping plate (18). A rubber pad (19) is fixedly fitted on the inner wall of the clamping plate (18).
3. A photovoltaic bracket purlin connector according to claim 1, characterized in that: An auxiliary groove (12) is provided at the bottom of the inner wall of the purlin body (2), and the shape and size of the inner wall of the auxiliary groove (12) are adapted to the shape and size of the outer edge of the auxiliary plate (11).
4. A photovoltaic bracket purlin connector according to claim 1, characterized in that: A spring (8) is fixedly connected to the bottom of the inner wall of the circular groove (6), and a push plate (9) is fixedly connected to the top of the spring (8). A limiting plate (25) overlaps the top of the push plate (9), and the outer edge of the limiting plate (25) is engaged with the inner wall of the limiting groove (7).
5. A photovoltaic bracket purlin connector according to claim 4, characterized in that: The shape and size of the outer edge of the limiting plate (25) are adapted to the shape and size of the inner wall of the first slide (5) and the inner wall of the second slide (13). An adjusting rod (24) is fixedly mounted on the top of the limiting plate (25).
6. A photovoltaic bracket purlin connector according to claim 2, characterized in that: A gear (14) is fixedly mounted on the side of the positive thread rod (15), a positioning frame (20) is fixedly mounted on the side of the U-shaped frame (4), a spring (22) is fixedly connected to the top of the inner wall of the positioning frame (20), and a toothed plate (23) is fixedly connected to the bottom of the spring (22). The protruding teeth at the bottom of the toothed plate (23) mesh with the protruding teeth on the outer edge of the gear (14). The side of the toothed plate (23) is slidably connected to the inner wall of the positioning frame (20), and a pull rod (21) is fixedly mounted on the top of the toothed plate (23).