Connection structure of pressing plate and pressing buckle for photovoltaic panel installation

Abstract

The utility model relates to photovoltaic technical field especially relates to the connecting structure of pressing plate and pressure buckle for photovoltaic panel installation, the utility model provides the connecting structure of pressing plate and pressure buckle for photovoltaic panel installation, including threaded rod, pressure buckle, pressing plate and nut etc., the pressure buckle is slidably connected on threaded rod, the pressing plate is slidably connected on threaded rod, and the nut is symmetrically connected on threaded rod left and right. Through setting the rotation joint structure of fender, docking ring and nut, effectively solve the core problem that the connection is loose because of the thermal expansion and contraction of component, the fender is wrapped nut and forms mechanical protection, avoids its direct exposure, simultaneously allows the small axial displacement of nut when temperature changes without destroying the whole connection, cooperates the elastic reset function of spring, has improved the stability and anti-loose ability of long-term operation significantly, has reduced operation and maintenance cost and security risk greatly, and the fixed block and fender joint cooperation mechanism of spring drive have realized the quick, reliable locking of fender.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to the connection structure of a pressure plate and a snap fastener for installing photovoltaic panels. Background Technology

[0002] The pressure plates and clips used for photovoltaic panel installation are key connecting components in the photovoltaic support system used to securely and firmly fix photovoltaic modules (solar panels) to the aluminum alloy frame. Together, they constitute a non-perforated, mechanically clamped installation method, which is one of the most mainstream module fixing solutions in photovoltaic power plants.

[0003] In existing photovoltaic panel installation systems, bolts and clamps are commonly used to directly lock the modules to the bracket rails. However, this traditional structure has significant drawbacks. The aluminum alloy frame of the photovoltaic module and the fixing clamps are in rigid contact. During long-term operation, repeated thermal expansion and contraction caused by day-night and seasonal temperature differences can easily lead to periodic changes in the preload of the locking bolts, resulting in loosening of the connection or even bolt detachment. This seriously threatens the safety of the module and increases operation and maintenance costs and safety hazards.

[0004] To address the aforementioned issues, a connection structure for photovoltaic panel mounting plates and clips with protective functions is needed. Utility Model Content

[0005] To overcome the drawback of loose locking bolts, this utility model provides a connection structure for a pressure plate and a snap fastener for photovoltaic panel installation.

[0006] The technical implementation scheme of this utility model is as follows: a connection structure for a pressure plate and a snap fastener for photovoltaic panel installation, including a threaded rod, a snap fastener, a pressure plate, a nut, an installation block, a sleeve, a sliding rod, a spring, a fixing block, a protective plate, and a docking ring. A snap fastener is slidably connected to the threaded rod, and a pressure plate is slidably connected to the threaded rod. Nuts are symmetrically threaded on the threaded rod and contact the pressure plate. Installation blocks are symmetrically installed on the pressure plate. Each installation block has a sleeve inside, and a sliding rod is slidably connected inside each sleeve. A spring is provided between each sliding rod and the sleeve. A fixing block is provided at the outer end of each sliding rod. A protective plate is placed at the bottom of the pressure plate. Two fixing blocks are engaged with the protective plate. A docking ring is symmetrically rotatably connected inside the protective plate and engages with the nut.

[0007] As a further preferred option, it also includes connecting plates and suction cups. The protective plate is symmetrically provided with connecting plates at the front and back, and each connecting plate is equipped with a suction cup.

[0008] As a further preferred option, anti-slip mats are also included, with each fixing block having an anti-slip mat attached.

[0009] As a further preferred option, it also includes sealing strips, with sealing strips symmetrically attached to the left and right sides and distributed front and back on the protective plate.

[0010] As a further preferred option, each mating ring has a through groove inside that matches the shape of the nut.

[0011] As a further preferred option, the protective plate has symmetrically opened fixing grooves on the left and right sides that match the shape of the fixing block.

[0012] As a further preferred option, a miniature bearing is provided between each docking ring and the protective plate.

[0013] As a further preferred option, the inner wall of the sleeve is provided with a wear-resistant lining.

[0014] The beneficial effects of this utility model are as follows: 1. By setting up a rotating snap-fit ​​structure for the protective plate, the docking ring, and the nut, the core problem of loose connection caused by thermal expansion and contraction of components is effectively solved. The docking ring wraps around the nut to form mechanical protection, preventing it from being directly exposed. At the same time, it allows the nut to undergo slight axial displacement when the temperature changes without damaging the overall connection. Combined with the elastic reset function of the spring, it significantly improves the stability and anti-loosening ability of long-term operation, greatly reducing maintenance costs and safety hazards. The snap-fit ​​mechanism between the spring-driven fixing block and the protective plate realizes the quick and reliable locking of the protective plate. During installation, the insertion and positioning of the protective plate can be completed by manually compressing the spring. After release, it automatically resets and locks, making the operation simple and efficient.

[0015] 2. The suction cup can adhere to the frame or bracket of the component during the initial installation, enabling convenient positioning by a single person; the anti-slip pad enhances the friction of the connection interface and prevents slippage; the sealing strip effectively blocks the intrusion of moisture and dust, improving the system's sealing performance and weather resistance, and extending its service life. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the threaded rod, snap fastener, and pressure plate components of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the snap fastener, pressure plate, and nut components of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the docking ring, connecting plate, and suction cup components of this utility model.

[0020] Figure 5 This is a cross-sectional view of the mounting block and sleeve of this utility model.

[0021] Among them: 1-threaded rod, 2-press buckle, 3-pressure plate, 4-nut, 5-mounting block, 6-sleeve, 7-sliding rod, 8-spring, 9-fixing block, 11-protective plate, 12-connecting ring, 13-connecting plate, 14-suction cup, 15-anti-slip pad, 16-sealing strip. Detailed Implementation

[0022] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0023] Example: Connection structure of pressure plate and snap fastener for photovoltaic panel installation, such as... Figures 1-5As shown, the assembly includes a threaded rod 1, a snap fastener 2, a pressure plate 3, a nut 4, a mounting block 5, a sleeve 6, a sliding rod 7, a spring 8, a fixing block 9, a protective plate 11, a mating ring 12, a connecting plate 13, a suction cup 14, an anti-slip pad 15, and a sealing strip 16. The snap fastener 2 is slidably connected to the threaded rod 1, used for assisting in applying force and initial positioning during installation. The pressure plate 3 is slidably connected to the threaded rod 1, bearing the downward clamping force when the nut 4 is tightened, and evenly transferring it to the upper surface of the aluminum alloy frame of the photovoltaic module, achieving the main fixation of the module. Nuts 4 are symmetrically threaded onto the threaded rod 1, and nut 4 engages with the pressure plate 3. Mounting blocks 5 are symmetrically mounted on the pressure plate 3, each mounting block 5 containing a sleeve 6 with a wear-resistant lining on its inner wall. A sliding rod 7 is slidably connected inside each sleeve 6, and a spring 8 is installed between each sliding rod 7 and the sleeve 6. A fixing block 9 is located at the outer end of each sliding rod 7. Driven by the spring 8, the block inserts into the fixing groove of the protective plate 11, forming a lateral mechanical lock. This effectively prevents the protective plate from falling off under vibration or wind load, enhancing the overall structure. For stability, a protective plate 11 is placed at the bottom of the pressure plate 3, covering and protecting the internal connection structure. Two fixing blocks 9 are engaged with the protective plate 11. The protective plate 11 has symmetrical fixing grooves on the left and right sides, which are consistent with the shape of the fixing blocks 9. The protective plate 11 has a docking ring 12 that is symmetrically rotated inside the protective plate 11. The docking ring 12 is engaged with the nut 4. After the protective plate 11 is in place, the docking ring wraps around the nut 4, forming a mechanical limit and anti-loosening protection, effectively preventing the nut from loosening due to vibration or thermal expansion and contraction, significantly improving long-term operational safety. A miniature bearing is provided between the docking ring 12 and the protective plate 11. Each docking ring 12 has a through groove with the same shape as the nut 4. The protective plate 11 is symmetrically provided with connecting plates 13. Each connecting plate 13 is equipped with a suction cup 14, which can generate a vacuum adsorption force with the component frame or bracket in the early stage of installation to achieve temporary fixation of the connection structure. Each fixing block 9 is attached with an anti-slip pad 15 to increase the friction between the fixing block 9 and the fixing groove of the protective plate 11. The protective plate 11 is symmetrically attached with sealing strips distributed front and back.

[0024] First, the bottom end of the threaded rod 1 is pre-installed and fixed to the guide rail of the photovoltaic bracket. Then, the photovoltaic module is placed so that its aluminum alloy frame is positioned above the bracket. Next, the entire connection structure is fitted onto the threaded rod 1 from above. At this time, the pressure plate 3 is located at the top, and the protective plate 11 is located at the bottom and initially contacts the upper surface of the module frame. Then, the buckle 2 and the pressure plate 3 are slidably installed from the top of the threaded rod 1, and nuts 4 are symmetrically screwed into the left and right sides of the threaded rod 1. As the nuts 4 are gradually tightened, their end faces are in close contact with the pressure plate 3 and apply downward pressure, thereby firmly locking the pressure plate 3 in the set position and realizing the main clamping and fixing of the module frame. During the downward pressing of the pressure plate 3, the mounting blocks 5 on both sides drive the sleeve 6, sliding rod 7 and fixing block 9 to move downward simultaneously. At this time, in order to install the protective plate 11, the two fixing blocks 9 need to be pushed inward first so that the sliding rod 7 slides inside the sleeve 6. The internal spring 8 is compressed to release the locking state between the fixing block 9 and the protective plate 11. Then, the through groove inside the docking ring 12 is rotated to an angle aligned with the contour of the nut 4, allowing the protective plate 11 to move smoothly down along the threaded rod 1 until its bottom is in contact with the pressure plate 3. At this time, the docking ring 12 just wraps around the nut 4, forming a mechanical limit and protective structure, effectively preventing the nut 4 from being exposed and accidentally loosening. After the protective plate 11 is positioned, the fixing block 9 is released, and the restoring force of the spring 8 pushes the sliding rod 7 and the fixing block 9 to automatically reset, so that the fixing block 9 is re-engaged into the fixing groove on the protective plate 11, realizing the lateral locking of the protective plate 11 and ensuring that it will not shift under vibration or wind load. In addition, the suction cup 14 set on the protective plate 11 can contact the component frame or bracket surface and generate an adsorption force to assist in temporary positioning during the installation process, improving the convenience and safety of high-altitude operations. The anti-slip pad 15 on the fixing block 9 enhances the friction between it and the protective plate 11, further improving the reliability of the connection; the sealing strip 16 set on the edge of the protective plate 11 effectively prevents moisture and dust from entering from the gaps, improving the environmental tolerance of the system.

[0025] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A connection structure for mounting pressure plates and snap fasteners for photovoltaic panels, characterized in that: It includes a threaded rod (1), a snap fastener (2), a pressure plate (3), a nut (4), a mounting block (5), a sleeve (6), a sliding rod (7), a spring (8), a fixing block (9), a protective plate (11), and a mating ring (12). The snap fastener (2) is slidably connected to the threaded rod (1), and the pressure plate (3) is slidably connected to the threaded rod (1). Nuts (4) are symmetrically threaded on the threaded rod (1), and the nuts (4) are in contact with the pressure plate (3). Mounting blocks (5) are symmetrically installed on the top of the pressure plate (3). Each mounting block (5) has a sleeve (6) installed inside, and each sleeve (6) has a sliding rod (7) slidably connected inside. Each sliding rod (7) is connected to the sleeve (6) by a spring (8). Each sliding rod (7) has a fixed block (9) fixedly connected to its outer end. A protective plate (11) is placed at the bottom of the pressure plate (3). The two fixed blocks (9) are engaged with the protective plate (11). The protective plate (11) has a docking ring (12) symmetrically rotated inside. The docking ring (12) is engaged with the nut (4).

2. The connection structure of the pressure plate and snap fastener for photovoltaic panel installation according to claim 1, characterized in that: It also includes a connecting plate (13) and a suction cup (14). The connecting plate (13) is symmetrically fixed on the front and back of the protective plate (11), and a suction cup (14) is installed on the top of each connecting plate (13).

3. The connection structure of the photovoltaic panel mounting plate and the snap fastener according to claim 2, characterized in that: It also includes anti-slip mats (15), and each fixing block (9) has an anti-slip mat (15) pasted on its top.

4. The connection structure of the photovoltaic panel mounting plate and the snap fastener according to claim 3, characterized in that: It also includes a sealing strip (16), and the protective plate (11) is symmetrically pasted with sealing strips (16) distributed front and back.

5. The connection structure of the photovoltaic panel mounting plate and the snap fastener according to claim 4, characterized in that: Each mating ring (12) has a through groove inside that is the same shape as the nut (4).

6. The connection structure of the pressure plate and the snap fastener for photovoltaic panel installation according to claim 5, characterized in that: The protective plate (11) has symmetrically opened fixing grooves on the left and right sides, which are consistent with the shape of the fixing block (9).

7. The connection structure of the photovoltaic panel mounting plate and the snap fastener according to claim 6, characterized in that: Each docking ring (12) is provided with a miniature bearing between it and the protective plate (11).

8. The connection structure of the pressure plate and the snap fastener for photovoltaic panel installation according to claim 7, characterized in that: The inner wall of the sleeve (6) is provided with a wear-resistant lining.

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