Combined clamping pressing plate device capable of reducing assembly gaps

Abstract

The utility model discloses a combined clamping pressing plate device capable of reducing assembly gaps. Comprising two pressing plates correspondingly pressed on C edges of two photovoltaic module frames, a top plate arranged below a cross beam, two annular bending connecting pieces correspondingly connected with the two pressing plates and the top plate, and a base plate located between the cross beam and the top plate and movably connected with the two annular bending connecting pieces. The lower end of the bolt is connected with the base plate, the upper end of the bolt is pressed on the A sides of the two photovoltaic module frames, and the two photovoltaic module frames clamp the bolt to reduce the gap; in the bolt screwing process, the base plate abuts against the bottom face of the cross beam, the lower end of the bolt abuts against the top plate, and the annular bending connecting piece deforms and drives the pressing plate to move towards the frame under the action of the top plate and the base plate. According to the utility model, gaps can be reduced and filled to reduce the risk of rain leakage, in addition, the installation and construction are convenient, and the waterproof structure is suitable for the condition that the construction under the assembly is inconvenient and the waterproof requirement is high.

Description

Technical field

[0001] The utility model belongs to the technical field of photovoltaic power generation equipment, and specifically relates to photovoltaic component installation technology. [Background Technology]

[0002] With the development of the photovoltaic industry, when household photovoltaic power stations are installed, pressure blocks or pressure plates are installed between two adjacent photovoltaic modules, resulting in a gap of at least 20mm between the modules. The Chinese utility model patent with reference announcement number CN 218771845 U discloses a photovoltaic panel installation assembly, comprising a photovoltaic panel placed on a steel pipe purlin; a medium pressure block; the medium pressure block comprises a first middle plate located in the middle, with both side edges of the first middle plate extending upward and bending to form a first 7-shaped folding plate, with two first folding plates facing each other outward; the top outer side of the first folding plate is used to overlap the edge of the photovoltaic panel, and the medium pressure plate is suspended between two adjacent photovoltaic panels; a fixing plate is also included; the fixing plate has two first fixing holes; and a U-shaped screw; the two ends of the U-shaped screw pass through the first middle plate of the medium pressure block, the steel pipe purlin and the fixing plate and are screwed with two nuts to fix it; the steel pipe purlin passes through the U-shaped screw, and the fixing plate is pressed against the steel pipe purlin to clamp it.

[0003] However, installing a power station on a sloping roof increases the risk of leakage, which in turn increases operation and maintenance costs. Currently, there are the following problems with the installation of pressure blocks / pressure plates:

[0004] First, the pressure blocks installed on the components have a 20mm gap between the components, which cannot avoid water leakage. In addition, the risk of using pressure blocks is much greater than that of pressure plates.

[0005] Second, installing the pressure blocks on the components requires adding rubber strips and using water tanks to prevent water leakage, which results in high costs.

[0006] Third, before installing pressure blocks and pressure plates under the modules, weather-resistant glue is currently used to fill the module assembly seams to prevent water leakage. However, since the modules are generally less than 40 cm from the sloping roof, it is difficult for construction workers to operate, increasing operation and maintenance costs.

[0007] Fourth, use a sink that has both drainage and load-bearing functions (such as an M-shaped sink) as a diagonal beam. Since this type of sink must be used on each long side, the "sink diagonal beam" becomes denser and the bracket cost is too high. [Utility Model Content]

[0008] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a combined clamping pressure plate device to reduce the gap between components and solve the problem that the existing technology cannot or is not convenient to install and construct at the bottom of the component.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] A combined clamping pressure plate device is used to fix two adjacent photovoltaic modules on a beam. The combined clamping pressure plate device includes two pressure plates corresponding to the C edges of the two photovoltaic module frames, a top plate arranged under the beam, two annular bent connectors corresponding to the two pressure plates and the top plate, a pad located between the beam and the top plate and movably connected to the two annular bent connectors, and a bolt with a lower end connected to the pad and an upper end pressed against the A edges of the two photovoltaic module frames. The two photovoltaic module frames clamp the bolts to reduce the gap; during the bolt tightening process, the pad supports the bottom surface of the beam, and the lower end of the bolt supports the top plate, and the action of the top plate and the pad causes the annular bent connector to deform and drive the pressure plate to move toward the frame; after tightening the bolt, under the action of the annular bent connector, the pressure plate presses the photovoltaic module to the beam.

[0011] Preferably, a nut is fixed on the pad, and the nut is connected to the bolt.

[0012] Preferably, the pad is provided with a movable limiting groove which is movably connected to the annular bending connector. During the process of tightening the bolt, the pad moves upward relative to the annular bending connector, so that the lower end of the bolt presses against the top plate, and the top plate moves downward. At the same time, the annular bending connector is subjected to the downward pulling force of the top plate and the horizontal force of the movable limiting groove, driving the pressure plate to move toward the frame direction.

[0013] Preferably, the movable limiting groove is an L-shaped structure, comprising an entrance section and a limiting section that intersect vertically.

[0014] Preferably, the pad is a rectangular structure, and four movable limiting grooves are correspondingly arranged at the four corners of the pad. The outer end of the entrance section is connected to the side of the pad, one end of the limiting section is connected to the inner end of the entrance section, and the other end extends toward the side of the pad.

[0015] Preferably, lower buckle grooves are provided on two opposite sides of the bottom of the top plate, and the lower ends of the annular bent connectors are buckled into the lower buckle grooves.

[0016] Preferably, the top plate is provided with a transverse section extending transversely and a longitudinal convex portion extending from the middle of the transverse section to both longitudinal sides, and two lower buckle grooves are correspondingly provided at the bottom of both transverse sides of the transverse section.

[0017] Preferably, the annular bent connector is provided with at least two bent portions along the up-down direction; and / or the annular bent connector is formed by bending an annular steel bar.

[0018] Preferably, the annular bending connector is provided with an upper bending portion close to the upper end and a lower bending portion close to the lower end along the up and down directions, and the upper bending portion bends the upper end of the annular bending connector toward the frame direction, and the lower bending portion bends the lower end of the annular bending connector away from the frame direction.

[0019] Preferably, the pressure plate is provided with an upper buckle groove, and the upper end of the annular bent connector is buckled into the upper buckle groove.

[0020] Preferably, the C side of the photovoltaic module frame is provided with an inner extension edge extending horizontally inward, and the pressure plate is provided with a pressing portion pressed on the inner extension edge; and / or, an upper limit plate is provided above the upper buckle groove.

[0021] Preferably, the pressing plate is provided with a supporting portion arranged relative to the pressing portion and supported on the crossbeam, and the pressing plate is provided with a concave cavity between the pressing portion and the supporting portion; and / or, a cavity is provided above the pressing portion.

[0022] Preferably, the gap between the frames of two adjacent photovoltaic modules is filled with glue.

[0023] The utility model adopts the above technical solution, which has the following beneficial effects:

[0024] 1. The frames of two adjacent photovoltaic modules are clamped with bolts to reduce the gap. Taking M6 bolts as an example, the gap can be reduced to 6mm. In this way, for power stations with waterproof requirements and modules with gaps of up to 6m, the gaps can be filled with durable and adhesive materials such as weather-resistant structural adhesives, reducing the risk of rain leakage.

[0025] To facilitate installation, the combined clamping plate assembly is first assembled, then connected to the PV module, and finally bolted from above. This means that when installing the PV module, the clamping plate, top plate, annular bend connector, backing plate, and bolts can be pre-assembled and pre-assembled with the crossbeam and PV module before the bolts are tightened. During the tightening process, the vertical constraint of the top plate, the horizontal constraint of the backing plate, and the mechanical deformation of the annular bend connector enable the clamping plate to move and compress the PV module frame, securing the PV module to the crossbeam.

[0026] After the combined clamping pressure plate device is assembled in batches before construction, it is only necessary to tighten the bolts. Moreover, since this combined clamping pressure plate device is fixed by tightening the bolts above the photovoltaic module, it is more convenient during construction and avoids construction and maintenance personnel from operating under the module, thus facilitating construction and operation and maintenance.

[0027] Therefore, the combined clamping plate device can be used in situations where it is inconvenient to construct under the components and high waterproof requirements are required.

[0028] In addition, after the bolts are tightened, the pad presses against the bottom surface of the beam, and the lower end of the bolt presses against the top plate. Due to the limiting effect of the top plate and the pad, the deformed annular bent connector maintains a downward pull on the pressure plate, so that the pressure plate firmly presses and fixes the photovoltaic module to the beam. The ultimate load of a single pressure plate can reach 6.1KN, making it safer and with higher bearing capacity.

[0029] 2. Nuts are fixed on the pad, for example, by welding the nuts, or by processing the nuts on the pad. In addition, the annular bending connector is movably connected to the movable limiting groove on the pad. The movable limiting groove limits the horizontal movement of the annular bending connector and also allows the annular bending connector to stretch up and down. In this way, during the process of tightening the bolts from above, due to the action of the nuts, the pad moves upward relative to the annular bending connector, but due to the limitation of the crossbeam, the bolt moves downward, and the lower end of the tightened bolt is supported, and the top plate moves downward. At the same time, the downward pulling force of the top plate and the horizontal force of the movable limiting groove on the annular bending connector cause the pressure plate to move toward the frame. At the same time, the vertical projection of the annular bending connector continues to increase. When the vertical projection of the annular bending connector is the largest, the pressure plate firmly fixes the photovoltaic module and the crossbeam.

[0030] 3. The movable limiting groove is an L-shaped structure, including an entrance section and a limiting section that intersect vertically. The outer end of the entrance section is connected to the side of the pad to facilitate the entry of the annular bent connector. One end of the limiting section is connected to the inner end of the entrance section, and the other end extends to the side of the pad, so that the annular bent connector enters the limiting section through the entrance section. In the process of tightening the bolt, the limiting section applies horizontal constraints to the annular bent connector relative to one end of the entrance section, so that the annular bent connector is not easily detached from the movable limiting groove.

[0031] Since the pad is a rectangular structure, the four movable limiting grooves are correspondingly arranged at the four corners of the pad, which just match the two annular bending connectors.

[0032] 4. Lower buckle grooves are provided on the opposite sides of the bottom of the top plate. The lower end of the annular bent connector is buckled in the lower buckle groove, which is convenient for installation. In the process of tightening the bolts, the lower end of the tightened bolts presses against the top plate, and the top plate moves downward, while the lower buckle groove pulls the lower end of the annular bent connector downward, and it is not easy for the lower end of the annular bent connector to detach from the lower buckle groove.

[0033] 5. The longitudinal convex portion can improve the overall structural strength of the top plate, and combined with the limit of the lower buckle groove, the two annular bent connectors can be separated to facilitate installation.

[0034] 6. The annular bending connector is formed by bending the annular steel bar, which is convenient for bending and forming, has large elastic deformation and low cost.

[0035] 7. The annular bent connector achieves mechanical deformation through at least two bent portions arranged in the up-down direction, thereby causing the pressure plate to move and press downward.

[0036] The annular bent connector is provided with an upper bent portion near the upper end and a lower bent portion near the lower end in the vertical direction. The upper bent portion bends the upper end of the annular bent connector toward the frame, and the lower bent portion bends the lower end of the annular bent connector away from the frame. At the same time, an oblique section is formed between the upper and lower bent sections, and the oblique section passes through the movable limiting groove. Thus, during the process of tightening the bolt, the lower end of the annular bent connector is subjected to a downward pulling force from the top plate, and the movable limiting groove applies a horizontal restraining force to the oblique section, thereby causing the upper end of the annular bent connector to move toward the frame and driving the pressure plate to also move toward the frame.

[0037] 8. An upper buckle groove is provided on the pressure plate, and the upper end of the annular bent connector is buckled in the upper buckle groove, which is convenient for installation. In the process of tightening the bolts, the upper end of the annular bent connector drives the pressure plate to move toward the frame through the upper buckle groove; in addition, since the top plate moves downward and pulls the annular bent connector downward, the upper end of the annular bent connector is tightly buckled in the upper buckle groove, and it is not easy for the upper end of the annular bent connector to detach from the upper buckle groove.

[0038] 9. Since the C side of the photovoltaic module frame is provided with an inner extension edge extending horizontally inward, the pressure plate is provided with a pressing portion pressed on the inner extension edge, so the pressure plate does not occupy the gap space between the frames of two adjacent photovoltaic modules, which is conducive to reducing the gap.

[0039] Moreover, the above arrangement is also that during the process of tightening the bolts, the pressing plate is moved toward the frame, and finally the pressing portion is pressed onto the inner extending edge.

[0040] 10. The pressing plate is provided with a supporting portion arranged opposite to the pressing portion and supported on the crossbeam, so that the pressing portion is pressed on the inner extension edge;

[0041] In addition, the pressing plate is provided with a cavity between the pressing portion and the supporting portion to ensure that the supporting portion is supported on the crossbeam while the pressing portion is pressed on the inner extending edge.

[0042] An upper limit plate is provided above the upper buckle groove to limit the upper end of the annular bent connector from being separated from the upper buckle groove; and a cavity is provided above the pressing portion to save materials.

[0043] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0044] The utility model is further described below with reference to the accompanying drawings:

[0045] Figure 1 This is a schematic structural diagram of the combined clamping plate device of the utility model before tightening the bolts;

[0046] Figure 2This is a schematic diagram of the structure of the combined clamping plate device of the utility model after assembly;

[0047] Figure 3 This is a side view of the combined clamping plate device of the utility model after assembly;

[0048] Figure 4 It is a structural diagram of the pressing plate;

[0049] Figure 5 Schematic diagram of the structure of the pad;

[0050] Figure 6 is a structural diagram of the top plate;

[0051] Figure 7 is a cross-sectional view of the top plate;

[0052] Figure 8 This is the top view of the cover plate + flat spring washer combination;

[0053] Figure numerals: photovoltaic component 1, frame 11, side A 111, side B 112, side C 113, inner extension side 114, crossbeam 2, pressure plate 3, upper buckle groove 31, pressing portion 32, support portion 33, concave cavity 34, upper limit plate 35, upper limit protrusion 36, cavity 37, annular bending connector 4, upper bending portion 41, lower bending portion 42, oblique section 43, bolt 5, gasket 6, movable limiting groove 61, entrance section 611, limiting section 612, nut 7, top plate 8, lower buckle groove 81, longitudinal lower rib 811, lower limiting protrusion 812, longitudinal reinforcement rib 82, longitudinal protrusion 83, cover plate and flat spring washer assembly 9, cover plate 91, flat spring washer 92. [Specific implementation method]

[0054] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0055] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0056] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "horizontal," and "vertical" used below to indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the utility model.

[0057] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0058] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0059] With reference to the prior art, Figure 4 As shown in the example, the photovoltaic module 1 is rectangular and is surrounded by rectangular frames 11 . The conventional frame has an A side 111 , a B side 112 and a C side 113 , wherein the C side 113 is provided with an inner extension side 114 extending horizontally inward.

[0060] For a photovoltaic system, from an economic perspective, several photovoltaic modules are usually arranged in a rectangular array to increase the power generation area. The present invention is also explained based on the situation of setting up a rectangular photovoltaic array. A photovoltaic bracket is provided under the photovoltaic array for installing photovoltaic modules 1. The photovoltaic bracket includes a longitudinal beam and a transverse beam 2. Two adjacent photovoltaic modules 1 are fixed side by side on the transverse beam 2.

[0061] refer to Figures 1 to 8As shown, this embodiment provides a combined clamping plate device for fixing two adjacent photovoltaic modules 1 to a crossbeam 2. The combined clamping plate device includes two clamping plates 3 correspondingly clamped on the C edges 113 of the two photovoltaic module frames, a top plate 8 provided below the crossbeam 2, two annular bent connectors 4 correspondingly connecting the two clamping plates 3 and the top plate 8, a pad 6 located between the crossbeam 2 and the top plate 8 and movably connected to the two annular bent connectors 4, and a bolt 5 having a lower end connected to the pad 6 and an upper end clamped on the A edges 111 of the two photovoltaic module frames.

[0062] The pressing plate 3 is pressed onto the inner extension edge 114, and the frames 11 of the two adjacent photovoltaic modules clamp the bolts 5 to reduce the gap. In addition, the gap between the frame B edges 112 of the two adjacent photovoltaic modules can be filled with glue.

[0063] The combined clamping plate assembly described above is secured by bolting. During the tightening process, the backing plate 6 first presses against the bottom surface of the beam 2, while the lower end of the bolt 5 presses against the top plate 8. The bolt 5 is then tightened, and the top plate 8 and backing plate 6 act to deform the annular curved connector 4, driving the pressure plate 3 toward the frame. After the bolts are tightened, the annular curved connector 4 acts to press the pressure plate 3 against the beam 2, securing the photovoltaic module 1.

[0064] In the above technical solution, the frames of two adjacent photovoltaic modules are clamped with bolts to reduce the gap. Taking M6 bolts as an example, the gap can be reduced to 6mm. In this way, for power stations with waterproof requirements and modules with gaps of up to 6m, the gaps can be filled with durable and adhesive materials such as weather-resistant structural adhesives, reducing the risk of rain leakage.

[0065] To facilitate installation, the combined clamping plate assembly is first assembled, then connected to the PV module, and finally bolted from above. This means that when installing the PV module, the clamping plate, top plate, annular bend connector, backing plate, and bolts can be pre-assembled and pre-assembled with the crossbeam and PV module before the bolts are tightened. During the tightening process, the vertical constraint of the top plate, the horizontal constraint of the backing plate, and the mechanical deformation of the annular bend connector enable the clamping plate to move and compress the PV module frame, securing the PV module to the crossbeam.

[0066] After the combined clamping pressure plate device is assembled in batches before construction, it is only necessary to tighten the bolts. Moreover, since this combined clamping pressure plate device is fixed by tightening the bolts above the photovoltaic module, it is more convenient during construction and avoids construction and maintenance personnel from operating under the module, thus facilitating construction and operation and maintenance.

[0067] Therefore, the combined clamping plate device can be used in situations where it is inconvenient to construct under the components and high waterproof requirements are required.

[0068] In addition, after the bolts are tightened, the pad presses against the bottom surface of the beam, and the lower end of the bolt presses against the top plate. Due to the limiting effect of the top plate and the pad, the deformed annular bent connector maintains a downward pull on the pressure plate, so that the pressure plate firmly presses and fixes the photovoltaic module to the beam. The ultimate load of a single pressure plate can reach 6.1KN, making it safer and with higher bearing capacity.

[0069] In order to drive the top plate to move during the tightening of the bolts, a nut 7 is fixed to the backing plate 6, and the nut 7 is connected to the bolt 5. Specifically, the nut 7 can be welded and fixed under the backing plate 6, or the nut can be thickened and processed on the backing plate. The backing plate 6 is provided with a movable limit groove 61 that is movably connected to the annular bent connector 4. During the tightening of the bolts, the backing plate moves upward relative to the annular bent connector, and the lower end of the tightened bolt presses against the top plate, causing the top plate to move downward. At the same time, the annular bent connector is subjected to the downward pull of the top plate and the horizontal force of the movable limit groove, causing the pressure plate to move toward the frame.

[0070] Therefore, in the above technical solution, the movable limiting groove limits the horizontal movement of the annular bent connector and also allows the annular bent connector to extend and retract up and down. In this way, during the process of tightening the bolt from above, due to the action of the nut, the pad moves upward relative to the annular bent connector, but due to the limitation of the crossbeam, the bolt moves downward, and the lower end of the tightened bolt presses against the top plate and moves downward. At the same time, the downward pulling force of the top plate and the horizontal force of the movable limiting groove on the annular bent connector cause the pressure plate to move toward the frame direction. At the same time, the projection of the annular bent connector in the vertical direction continues to increase. When the projection of the annular bent connector in the vertical direction is the largest, the pressure plate firmly fixes the photovoltaic module and the crossbeam.

[0071] As one of the implementation methods, Figure 5 As shown, the movable limiting groove 61 is an L-shaped structure, including an inlet section 611 and a limiting section 612 that intersect vertically. In addition, the backing plate 6 can be designed as a rectangular structure, with four movable limiting grooves 61 correspondingly provided at the four corners of the backing plate, and the nut 7 is welded and fixed between two adjacent movable limiting grooves 61 in the transverse direction, and roughly corresponds to the longitudinal position of the limiting section 612. The outer end of the inlet section 611 is connected to one of the two adjacent sides of the backing plate, and one end of the limiting section 612 is connected to the inner end of the inlet section, and the other end extends to the other side of the two adjacent sides of the backing plate.

[0072] The L-shaped structural design of the above-mentioned movable limiting groove can facilitate the entry of the annular bent connector. One end of the limiting section is connected to the inner end of the entrance section, and the other end extends toward the side of the pad, so that the annular bent connector enters the limiting section through the entrance section. In the process of tightening the bolts, the limiting section applies horizontal constraints to the annular bent connector relative to one end of the entrance section, so it is not easy for the annular bent connector to detach from the movable limiting groove.

[0073] Since the pad is a rectangular structure, the four movable limit grooves are correspondingly arranged at the four corners of the pad, which just cooperate with the two annular bending connectors, that is, the two movable limit grooves on the lateral side correspond to cooperate with one of the annular bending connectors. Taking the annular bending connector as a rectangular ring as an example, the two movable limit grooves correspond to cooperate with the two length side edges of one of the annular bending connectors.

[0074] like Figure 6 and Figure 7 As shown, the bottom of the top plate 8 is provided with longitudinally extending lower snap grooves 81 on opposite sides of the bottom, into which the lower end of the annular bent connector 4 snaps. This facilitates installation of the lower end of the annular bent connector 4. During bolt tightening, the lower end of the tightened bolt presses against the top plate, causing the top plate to move downward, while the lower snap groove pulls the lower end of the annular bent connector downward, preventing the lower end of the annular bent connector from disengaging from the lower snap groove. The top plate 8 is provided with a transversely extending transverse section and longitudinal protrusions 83 extending longitudinally from the center of the transverse section to both sides. Two lower snap grooves are provided on the bottom of the transverse section on opposite sides of the bottom. The bottom of the top plate 8 is provided with longitudinal lower ribs 811 on opposite sides of the bottom to form the lower snap grooves 81. The longitudinal lower ribs 811 are provided with lower stop protrusions 812 inside the lower snap groove opening. Furthermore, a longitudinal reinforcing rib 82 extending longitudinally is provided in the middle of the top plate 8. The longitudinal protrusions and longitudinal reinforcing ribs enhance the overall structural strength of the top plate. The lower limiting projection 812 has the effect of preventing the lower end of the annular bending connector 4 from being disengaged from the lower buckle groove 81. In addition, the longitudinal projection is combined with the limiting of the lower buckle groove to separate the two annular bending connectors for easy installation.

[0075] In order to generate sufficient force during the deformation process, the annular bending connector 4 is provided with at least two bending parts in the up and down directions. Mechanical deformation is achieved by at least two bending parts, and the pressure plate is moved and pressed downward. Preferably, the annular bending connector 4 is formed by bending annular steel bars, that is, the steel bars are first bent into rectangular rings, and then the rectangular rings are bent relative to the length direction, so that one side of the rectangular ring width serves as the upper end of the annular bending connector, and the other side of the rectangular ring width serves as the lower end of the annular bending connector. In addition, the annular bending connector can be made of steel bars, which is convenient for bending processing and forming, has large elastic deformation, and is also low in cost.

[0076] Furthermore, the annular bent connector 4 is provided with an upper bent portion 41 near the upper end and a lower bent portion 42 near the lower end in the vertical direction. The upper bent portion 41 bends the upper end of the annular bent connector toward the frame, while the lower bent portion 42 bends the lower end of the annular bent connector away from the frame. Simultaneously, an oblique section 43 is formed between the upper and lower bent portions 41, 42, and passes through the movable limiting slot 61. Thus, during the tightening of the bolts, the lower end of the annular bent connector is subjected to a downward pull from the top plate, causing the movable limiting slot to exert a horizontal restraining force on the oblique section, thereby causing the upper end of the annular bent connector to move toward the frame and driving the pressure plate to also move toward the frame.

[0077] like Figure 4 As shown, the upper portion of the pressure plate 3 is provided with a longitudinally extending upper buckle groove 31, and the upper end of the annular bent connector 4 is buckled into the upper buckle groove 31. The upper buckle groove opens upward, making it convenient to install the upper end of the annular bent connector 4. During the tightening of the bolts, the upper end of the annular bent connector drives the pressure plate toward the frame through the upper buckle groove; in addition, since the top plate moves downward and pulls the annular bent connector downward, the upper end of the annular bent connector is tightly buckled into the upper buckle groove, and it is not easy for the upper end of the annular bent connector to be separated from the upper buckle groove.

[0078] Furthermore, the pressure plate 3 is provided with a pressing portion 32 that presses against the inner extension edge. Because the pressing portion is located inside the frame B, the pressure plate does not occupy the gap between the frames of adjacent photovoltaic modules, thereby reducing the gap. Furthermore, this arrangement allows the pressure plate to move toward the frame during bolt tightening, ultimately ensuring that the pressing portion presses against the inner extension edge.

[0079] In addition, the pressure plate 3 is provided with a support portion 33 disposed opposite the pressing portion and supported on the crossbeam. A recessed cavity 34 is provided between the pressing portion 32 and the support portion 33, ensuring that the pressing portion 32 is pressed against the inner extension edge 114 while the support portion is supported on the crossbeam. The support portion 33 extends above the recessed cavity 34 toward the pressing portion 32, while the upper buckle groove 31 is located above the recessed cavity 34 between the pressing portion 32 and the support portion 33. Thus, the upper end of the annular bent connector buckles within the upper buckle groove, generating a downward force. Because the support portion is supported on the crossbeam, the pressing portion generates a force that compresses the inner extension edge.

[0080] Furthermore, an upper limit plate 35 is provided above the upper buckle groove 31. This plate extends obliquely downward toward the support portion and has an upper limit projection 36 on the lower side of its free end. When the upper end of the annular bent connector is pressed into the upper buckle groove, it interacts with the upper limit projection, causing the upper limit plate to deform upward. Once pressed into the upper buckle groove, the upper limit plate returns to its original shape downward. The upper limit plate, in conjunction with the upper limit projection, prevents the upper end of the annular bent connector from disengaging from the upper buckle groove. A cavity 37 is provided above the press-fit portion, saving material and reducing costs.

[0081] like Figure 2 and Figure 8 As shown, two bolts 5 are provided in this embodiment to ensure reliable fixation. The two bolts 5 are arranged side by side in the longitudinal direction. Correspondingly, two nuts 7 are provided on the backing plate 6, located on both longitudinal sides of the transverse middle position of the backing plate 6. In addition, the two bolts 5 are covered with a cover plate and flat spring washer assembly 9 above the A side 111 of the photovoltaic module frame. The cover plate and flat spring washer assembly 9 includes a cover plate 91 and two flat spring washers 92, wherein the cover plate 91 is rectangular, and the two longitudinal sides are respectively pressed onto the A side 111 of the photovoltaic module frame on both sides, and the flat spring washers 92 are located above the cover plate 91.

[0082] Preferably, the top plate 8 and the pressure plate 3 are profiled, such as aluminum alloy. This can be extruded and molded to achieve large-scale production, resulting in low cost and long-term rust resistance. Furthermore, the backing plate 6 is made of sheet metal. This not only resists rust and extends service life, but also offers lightweight, high strength, and can be mass-produced to reduce processing costs.

[0083] refer to Figures 1 to 8 As shown, the installation process of the above-mentioned combined clamping plate device is as follows:

[0084] Step 1: Insert the two annular bent connectors 4 into the crossbeam 2 from the ends of the crossbeam 2;

[0085] Step 2: Place two photovoltaic modules 1 on the beam 2, leaving a gap of about 10 cm between the two photovoltaic modules 1, and place two annular bent connectors 4 in the gap;

[0086] Step 3: Place the top plate 8, with the two lower buckle grooves 81 facing downwards and buckling the lower ends of the two annular bent connectors 4 respectively;

[0087] Step 4: Tilt the backing plate 6 at a certain angle so that the movable limiting groove 61 on one side is sleeved on one of the annular bending connectors 4. Then, use the same method to sleeve the movable limiting groove 61 on the other side on the other annular bending connector 4.

[0088] Step 5: Buckle the upper end of the annular bent connector 4 into the upper buckle groove 31 of the pressing plate 3;

[0089] Step 6: Lift the photovoltaic module 1 and place the fixed pressing plate 3 under the photovoltaic module;

[0090] Step 7: First, insert the two bolts 5 through the cover plate and flat spring washer assembly 9, then through the backing plate 6 and the nuts 7 welded to the backing plate. Apply structural weatherproof glue to the assembly frame and push the assembly until the bolts 5 are clamped.

[0091] Step 8: Tighten the first bolt 5. During the thread rotation process, the parts will undergo the following movements simultaneously:

[0092] Due to the action of the nut 7, the pad 6 moves upward relative to the annular bent connector 4, and the tightened bolt 5 pushes the top plate 8 downward. When the distance between the pad 6 and the top plate 8 increases, the annular bent connector 4 is acted upon by the pad and the top plate, and the pressure plate 3 moves toward the frame position. When the annular bent connector 4 has the largest projection in the vertical direction, the pressure plate 3 firmly fixes the photovoltaic module 1 and the beam 2.

[0093] Step 9: Tighten the second bolt and the installation is complete;

[0094] As the pad 6 moves upward relative to the annular bent connector 4, the pressure plate 3 will inevitably move toward the component frame under the constraint. At the same time, the annular bent connector 4 continues to increase in vertical projection until it is tightly engaged with the component frame and the beam.

[0095] The above technical solution provides examples for the specific structures of the pressure plate, top plate, annular bending connector and pad, but it can be understood that the specific structures of the pressure plate, top plate, annular bending connector and pad are not limited to the above examples, and other changes can be made.

[0096] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A combined clamping plate device for reducing the gap between modules, used to fix two adjacent photovoltaic modules on a beam, characterized in that: The combined clamping pressure plate device includes two pressure plates correspondingly pressed on the C sides of the two photovoltaic component frames, a top plate arranged under the beam, two annular bent connectors corresponding to the two pressure plates and the top plate, a pad located between the beam and the top plate and movably connected to the two annular bent connectors, and a bolt with a lower end connected to the pad and an upper end pressed on the A sides of the two photovoltaic component frames, and the two photovoltaic component frames clamp the bolt to reduce the gap; during the bolt tightening process, the pad presses against the bottom surface of the beam, and the lower end of the bolt presses against the top plate, and the action of the top plate and the pad causes the annular bent connector to deform and drive the pressure plate to move toward the frame; after tightening the bolt, under the action of the annular bent connector, the pressure plate presses the photovoltaic component to the beam and fixes it.

2. A combined clamping plate device according to claim 1, characterized in that: A nut is fixed on the backing plate, and the nut is connected with the bolt.

3. A combined clamping plate device according to claim 2, characterized in that: The pad is provided with a movable limiting groove which is movably connected to the annular bending connector. During the bolt tightening process, the pad moves upward relative to the annular bending connector, so that the lower end of the bolt presses against the top plate, and the top plate moves downward. At the same time, the annular bending connector is subjected to the downward pulling force of the top plate and the horizontal force of the movable limiting groove, driving the pressure plate to move toward the frame direction.

4. A combined clamping plate device according to claim 3, characterized in that: The movable limiting groove is an L-shaped structure, comprising an entrance section and a limiting section that intersect vertically.

5. A combined clamping plate device according to claim 4, characterized in that: The pad is a rectangular structure, and four movable limiting grooves are correspondingly arranged at the four corners of the pad. The outer end of the entrance section is connected to the side of the pad, one end of the limiting section is connected to the inner end of the entrance section, and the other end extends toward the side of the pad.

6. The combined clamping plate device according to claim 1, characterized in that: Lower buckle grooves are provided on opposite sides of the bottom of the top plate, and the lower ends of the annular bent connectors are buckled in the lower buckle grooves.

7. A combined clamping plate device according to claim 6, characterized in that: The top plate is provided with a transverse section extending transversely and a longitudinal convex portion extending from the middle of the transverse section to both longitudinal sides, and two lower buckle grooves are correspondingly provided at the bottom of both transverse sides of the transverse section.

8. The combined clamping plate device according to claim 1, characterized in that: The annular bent connector is provided with at least two bent portions along the up-down direction; and / or the annular bent connector is formed by bending an annular steel bar.

9. The combined clamping plate device according to claim 8, characterized in that: The annular bending connector is provided with an upper bending portion close to the upper end and a lower bending portion close to the lower end along the up and down directions, and the upper bending portion bends the upper end of the annular bending connector toward the frame direction, and the lower bending portion bends the lower end of the annular bending connector away from the frame direction.

10. The combined clamping plate device according to claim 1, characterized in that: The pressing plate is provided with an upper buckle groove, and the upper end of the annular bent connector is buckled in the upper buckle groove.

11. The combined clamping plate device according to claim 10, characterized in that: The C side of the photovoltaic module frame is provided with an inner extension edge extending horizontally inward, and the pressing plate is provided with a pressing portion pressed on the inner extension edge; and / or, an upper limit plate is provided above the upper buckle groove.

12. The combined clamping plate device according to claim 11, characterized in that: The pressing plate is provided with a supporting portion arranged relative to the pressing portion and supported on the crossbeam, and the pressing plate is provided with a concave cavity between the pressing portion and the supporting portion; and / or, a cavity is provided above the pressing portion.

13. The combined clamping plate device according to claim 1, characterized in that: The gap between the frames of two adjacent photovoltaic modules is filled with glue.

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