A connecting node of a metal roof photovoltaic module sliding groove fastening

Abstract

The utility model relates to photovoltaic building field especially metal roof photovoltaic module sliding slot fastening's connecting node, including clamp piece, fastening pressure sheet, main connecting bolt, border pressure block, photovoltaic module border, clamp piece includes sliding slot clamp piece and connecting clamp piece, and connecting clamp piece and sliding slot clamp piece are connected through clamp piece connecting bolt, photovoltaic module border sets up on clamp piece, and the middle of two adjacent photovoltaic module borders is equipped with fastening pressure sheet, and fastening pressure sheet is pasted in the upper portion of clamp piece through main connecting bolt, and border pressure block carries out pressure buckle connection to two adjacent photovoltaic module borders through connecting nut on main connecting bolt. After adopting above -mentioned scheme, the node reliability of photovoltaic module border and sliding slot connecting type connecting clamp has been improved, and the wind resistance and the security of connection of photovoltaic system have been strengthened.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic buildings, and specifically refers to a connection node for fastening the sliding groove of a photovoltaic module on a metal roof. Background Technology

[0002] Currently, distributed power stations with metal roofs have been widely promoted and applied. Photovoltaic modules are connected to the roof panel ribs on the upper part of the metal roof through connecting clamps. Photovoltaic guide rails are connected to the upper part of the photovoltaic clamps, and the photovoltaic guide rails are connected to the photovoltaic module frame through bolts and pressure blocks.

[0003] To save on project costs and improve assembly efficiency, photovoltaic (PV) module frames are typically connected directly to PV clamps. These clamps usually employ a sliding groove with an opening at the top. A connecting screw is embedded in the groove to connect the PV module to the frame via a pressure block. This connection is highly susceptible to bolt loosening, causing the screw to slip out of the groove and resulting in wind-resistant connection failure of the PV module unit, leading to widespread wind damage. Simultaneously, the upper part of the open bolt connection groove is prone to deformation under vertical pull-out forces, weakening the pull-out resistance between the groove and the bolt, also posing a wind resistance safety issue. Furthermore, the support length for the PV frame in point-support clamps is relatively short, typically around 100mm, allowing only a 5-10mm installation error. This installation error can easily result in insufficient support length, affecting the safety of the PV module connection.

[0004] Therefore, the inventors conducted further research and developed a connection node for fastening the sliding groove of a metal roof photovoltaic module, which led to this invention. Utility Model Content

[0005] The purpose of this utility model is to provide a connection node for fastening the sliding groove of a photovoltaic module on a metal roof, which improves the reliability of the connection between the photovoltaic module frame and the sliding groove connection clamp, enhances the wind resistance and connection safety of the photovoltaic system, and also improves the positioning accuracy and installation efficiency of the photovoltaic panel.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A connection node for fastening the slide groove of a metal roof photovoltaic module includes

[0008] The components include clamping plates, fastening plates, main connecting bolts, frame clamping blocks, and photovoltaic module frames. The clamping plates consist of sliding clamping plates and connecting clamping plates, which are connected by clamping plate connecting bolts. The photovoltaic module frames are mounted on the clamping plates, and fastening plates are located between two adjacent photovoltaic module frames. The fastening plates are attached to the upper part of the clamping plates by the main connecting bolts. The frame clamping blocks connect two adjacent photovoltaic module frames by clamping nuts on the main connecting bolts.

[0009] By using bolts for fastening, the risk of traditional connecting bolts slipping out of the groove due to loosening of the clamping block connection under the weight or wind load of the photovoltaic system is solved, which causes the connection between the photovoltaic module frame and the clamp to fail and lose the structural connection performance. This improves the safety and reliability of the roof photovoltaic system.

[0010] Furthermore, the connecting clamp piece includes vertical ribs, splicing ribs, tightening ribs, and horizontal transverse grooves; the sliding clamp piece includes a sliding groove, vertical ribs, splicing grooves, tightening ribs, and horizontal transverse grooves; the splicing ribs of the connecting clamp piece are embedded in the splicing grooves of the sliding clamp piece; the tightening ribs of the connecting clamp piece and the sliding clamp piece are arranged opposite to each other; the horizontal transverse grooves of the connecting clamp piece and the sliding clamp piece are embedded and fastened to the ribs of the metal roofing panel.

[0011] Furthermore, the linear groove of the sliding fixture piece includes a vertical rib, a bottom plate, a middle rib, and an upper flange. The bottom plate and the vertical rib form a U-shaped structure. The upper flange is located at the top of the vertical rib, and the middle rib is located in the cavity formed by the vertical rib. The upper surface of the upper flange is also provided with several raised and recessed patterns.

[0012] Furthermore, the fastening plate includes a horizontal plate, an edge anti-shear rib, a central anti-shear rib, and an edge upturned rib. The horizontal plate has a bolt hole in the center, and the lower surface of the horizontal plate has a textured surface that matches the textured surface of the upper flange of the slide groove. The central anti-shear rib is embedded in the opening slot of the slide groove of the slide groove clamping plate. The edge anti-shear rib is the two sides of the horizontal plate that protrude downwards.

[0013] Furthermore, the edge shear ribs are rectangular or L-shaped and are set on both sides of the upper flange of the slide groove of the slide groove clamp piece.

[0014] Furthermore, the upward-protruding edge ribs on both sides of the horizontal sheet are closely attached to the vertical edges of the photovoltaic module frame.

[0015] Furthermore, the main connecting bolt is equipped with a lower connecting nut and an upper connecting nut. The nut of the main connecting bolt is located in the linear groove of the sliding clamp piece. The lower connecting nut is located above the fastening pressure plate and is used to fix the fastening pressure plate. The upper connecting nut is located above the frame pressure block and is used to fix the frame pressure block.

[0016] Furthermore, the frame clamping block has bolt holes in the middle, and the two adjacent photovoltaic module frames are clamped together by connecting nuts on the screw.

[0017] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0018] 1. It solves the risk that traditional connecting bolts in photovoltaic systems are prone to slippage and sliding under their own weight or wind loads due to loosening of the clamping block connection, which can cause the photovoltaic module frame to fail to connect with the clamp and lose structural connection performance, thus improving the safety and reliability of roof photovoltaic systems.

[0019] 2. It prevents the upper flange of the open chute from deforming under vertical stress conditions, thus reducing the pull-out resistance of the photovoltaic connection and improving the safety and reliability of the node connection of the photovoltaic system under wind load.

[0020] 3. The installation gap between adjacent components is determined by the width of the positioning plate. The positioning plate serves as a template for the installation gap of the photovoltaic module, reducing the need for manual secondary precision adjustment during the installation process and improving the quality, accuracy, and efficiency of photovoltaic panel installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the connection nodes set on the roof panel;

[0022] Figure 2 This is a schematic diagram of the longitudinal section of the joint.

[0023] Figure 3 This is one of the schematic diagrams of the cross-sectional view of the joint (excluding the border pressure block);

[0024] Figure 4 This is the second schematic diagram of the cross-sectional view of the joint (excluding the border pressure block).

[0025] Figure 5 yes Figure 3 A schematic diagram of the intermediate fastening and compression of the tablet;

[0026] Figure 6 yes Figure 4 A schematic diagram of the intermediate fastening and compression of the tablet;

[0027] Figure 7 This is a schematic diagram of the clamp piece;

[0028] Label Explanation

[0029] 11-Connecting clamp piece, 111-Vertical rib, 112-Splicing rib, 113-Tightening rib,

[0030] 114-Horizontal transverse groove,

[0031] 12-Slide groove clamp piece, 121-Line slide groove, 1211-Slide groove vertical rib, 1212-Slide groove bottom plate,

[0032] 1213 - Middle rib of the slide groove; 1214 - Upper flange of the slide groove; 1215 - Embossed texture;

[0033] 122-Vertical rib, 123-Splicing groove, 124-Firming rib, 125-Horizontal groove,

[0034] 13-Clamping plate connecting bolts;

[0035] 2-Firming tablet, 21-Horizontal tablet, 22-Edge shear rib, 23-Central shear rib,

[0036] 24 - Edge upturned rib, 25 - Bolt hole, 26 - Embossing pattern;

[0037] 3-Main connecting bolt, 31-Lower connecting nut of screw rod, 32-Upper connecting nut of screw rod;

[0038] 4-Frame pressing block, 5-Photovoltaic module frame. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 As shown, a connection node for fastening a sliding groove of a photovoltaic module on a metal roof includes a clamping piece, a fastening plate 2, a main connecting bolt 3, a frame pressing block 4, and a photovoltaic module frame 5; wherein, the clamping piece is set at the connection node of two metal roof panels, and is connected by a connecting clamping piece 11 and a sliding groove clamping piece 12 in conjunction with a clamping piece connecting bolt 13.

[0041] like Figure 7 As shown:

[0042] The connecting clamp piece 11 on the left side consists of a vertical rib 111, a splicing rib 112, a tightening rib 113, and a horizontal groove 114; the sliding clamp piece 12 on the right side includes a line sliding groove 121, a vertical rib 122, a splicing groove 123, a tightening rib 124, and a horizontal groove 125. The line sliding groove 121 is located at the top of the sliding clamp piece 12; the line sliding groove 121 is a U-shaped structure groove, which includes a sliding groove vertical rib 1211, a sliding groove bottom plate 1212, a sliding groove middle rib 1213, and a sliding groove. The upper flange 1214; the connecting clamp piece 11 and the sliding clamp piece 12 are spliced ​​together by the clamp piece connecting bolt 13; the horizontal transverse groove 114 of the connecting clamp piece 11 and the horizontal transverse groove 125 of the sliding clamp piece 12 form a strip groove and are embedded and fastened to the horizontal protruding rib of the metal roof panel rib; the top clamping ribs (113, 124) of the connecting clamp piece and the sliding clamp piece are arranged opposite to each other, so that a sun-shaped cavity is formed between the vertical ribs (111, 122).

[0043] The fastening plate 2 mainly cooperates with the clamping plate, that is, it cooperates with the linear groove 121 on the top of the sliding clamping plate 12, as shown in the reference. Figure 3-6 As shown:

[0044] The fastening plate is I-shaped and includes a horizontal plate 21, edge shear ribs 22, central shear ribs 23, edge upturned ribs 24, bolt holes 25, and grooves 26. The horizontal plate 21 has bolt holes 25 in its center, through which the bottom of the fastening plate 2 is tightly attached to the upper flange 1214 of the slide groove using the main connecting bolts 3. The lower surface of the horizontal plate 21's cross-section has grooves 26, which fit and connect with the grooves 1215 of the upper flange 1214 of the slide groove clamping plate 12. The horizontal plate 21 has a downward-protruding rectangular central shear rib 23 in its cross-section, which is embedded in the opening slot of the linear slide groove 121. The horizontal plate 21 also has downward-protruding edge shear ribs 22 on both sides of its cross-section; these edge shear ribs 22 can be rectangular or L-shaped (see reference). Figure 5 , 6 Edge shear ribs 22 are provided on both sides of the upper flange 1214 of the slide groove of the slide groove clamp piece 12; the two sides of the horizontal piece 21 are provided with protruding edge upturn ribs 24, which are closely attached to the vertical sides of the photovoltaic module frame 5.

[0045] like Figure 2 As shown, the photovoltaic module frame 5 is vertically resting on the upper flange 1214 of the slide groove of the slide clamp piece 12. A fastening plate 2 is provided between two adjacent photovoltaic module frames 5. The edge ribs 24 of the fastening plate 2 are closely attached to the two sides of the vertical edge of the photovoltaic module frame 5. The installation gap between adjacent modules is determined by the width of the positioning plate. The nuts of the connecting bolts 3 are embedded in the slide groove 121 of the slide clamp piece 12 for connection. The bolts are inserted into the bolt holes 25 of the fastening plate 2 and connected and fixed by the connecting nuts 31 below the bolts. The bolts are inserted into the frame pressure blocks 4 and connected and fixed by the connecting nuts 32 above the bolts.

[0046] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A connection node for fastening a sliding groove of a photovoltaic module on a metal roof, characterized in that: include The components include clamping plates, fastening plates, main connecting bolts, frame clamping blocks, and photovoltaic module frames. The clamping plates consist of sliding clamping plates and connecting clamping plates, which are connected by clamping plate connecting bolts. The photovoltaic module frames are mounted on the clamping plates, and fastening plates are located between two adjacent photovoltaic module frames. The fastening plates are attached to the upper part of the clamping plates by the main connecting bolts. The frame clamping blocks connect two adjacent photovoltaic module frames by clamping nuts on the main connecting bolts.

2. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 1, characterized in that: The connecting clamp piece includes vertical ribs, splicing ribs, tightening ribs, and horizontal grooves; the sliding clamp piece includes a sliding groove, vertical ribs, splicing grooves, tightening ribs, and horizontal grooves; the splicing ribs of the connecting clamp piece are embedded in the splicing grooves of the sliding clamp piece; the tightening ribs of the connecting clamp piece and the sliding clamp piece are arranged opposite to each other; the horizontal grooves of the connecting clamp piece and the sliding clamp piece are embedded and fastened to the ribs of the metal roofing panel.

3. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 1, characterized in that: The sliding groove of the sliding clamp piece includes a sliding groove vertical rib, a sliding groove bottom plate, a sliding groove middle rib, and a sliding groove upper flange. The sliding groove bottom plate and the sliding groove vertical rib form a U-shaped structure. The sliding groove upper flange is located at the top of the sliding groove vertical rib, and the sliding groove middle rib is located in the cavity formed by the sliding groove vertical rib. The upper surface of the sliding groove upper flange is also provided with several concave and convex textures.

4. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 1 or 3, characterized in that: The fastening plate includes a horizontal plate, edge anti-shear ribs, central anti-shear ribs, and edge upturned ribs. The horizontal plate has bolt holes in the center and the lower surface of the horizontal plate has embossed textures that match the embossed textures on the upper flange of the slide groove. The central anti-shear ribs are embedded in the opening slot of the slide groove of the slide groove clamping plate. The edge anti-shear ribs are the two sides of the horizontal plate that protrude downwards.

5. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 4, characterized in that: The edge shear ribs are rectangular or L-shaped and are set on both sides of the upper flange of the slide groove of the slide groove clamp piece.

6. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 4, characterized in that: The upward-protruding ribs on both sides of the horizontal sheet are closely attached to the vertical sides of the photovoltaic module frame.

7. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 2, characterized in that: The main connecting bolt is equipped with a lower connecting nut and an upper connecting nut. The nut of the main connecting bolt is located in the linear groove of the sliding clamp piece. The lower connecting nut is located above the fastening pressure plate and is used to fix the fastening pressure plate. The upper connecting nut is located above the frame pressure block and is used to fix the frame pressure block.

8. The connection node for fastening the sliding groove of a metal roof photovoltaic module according to claim 1, characterized in that: The frame clamp has bolt holes in the middle, and the two adjacent photovoltaic module frames are clamped together by connecting nuts on the screw.

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