A new photovoltaic system connecting support suitable for metal roofs

Abstract

The application discloses a novel photovoltaic system connecting support suitable for a metal roof, which comprises a first sub-support, a second sub-support and a first locking piece. The first sub-support is provided with a clamping edge on one side of the upper end and is formed into a shape matched with one side of a wave crest of a metal roof panel at the lower end; the second sub-support is horizontally extended with a mounting surface at the upper end for fixing a photovoltaic purlin, the mounting surface is provided with a clamping groove for embedding the clamping edge, and is formed into a shape matched with the other side of the wave crest at the lower end. The first locking piece is arranged through the side surfaces of the two sub-supports to connect the two sub-supports into an integrated body for clamping and fixing the wave crest of the metal roof panel, realizes non-perforation clamping and fixing, and completely eliminates the roof leakage risk caused by traditional drilling. Meanwhile, the nesting structure of the clamping edge and the clamping groove provides a pre-positioning function, simplifies the installation process, ensures that the load is directly transmitted to the main body of the metal roof, and thus improves the structural safety and waterproof reliability of the photovoltaic system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metal roof photovoltaic system mounting structure technical field, especially relate to a new photovoltaic system connecting support suitable for metal roof. BACKGROUND

[0002] In the existing metal roof photovoltaic system, photovoltaic purlin is generally used to connect through self-drilling and self-tapping screw penetrating the metal roof panel wave crest and being fixed to the lower roof structure purlin (see Figure 6 However, this connection mode forms a perforation on the metal roof panel, and when the roof vibrates up and down under the action of wind load, the perforation is prone to deformation or sealing failure due to stress concentration and material fatigue, which significantly increases the risk of rainwater leakage, especially in rainy areas, the roof leakage problem caused thereby not only causes property losses such as damage to internal equipment and production interruption, but also may cause the fixed screw itself to loosen or fail, which seriously restricts the safe and reliable application of the photovoltaic system on the metal roof. SUMMARY

[0003] (I) Utility Model Objectives In order to overcome the above shortcomings, the utility model aims to provide a new photovoltaic system connecting support suitable for metal roof, to solve the technical problem that the existing technology causes serious roof leakage risk by drilling holes in the metal roof panel and fixing the photovoltaic system with self-drilling and self-tapping screws.

[0004] (II) Technical Solutions To achieve the above objectives, the technical solutions provided by the present application are as follows: A new photovoltaic system connecting support suitable for metal roof, comprising: a first sub-support and a second sub-support, and a first locking member; The upper end of the first sub-support is provided with a clamping edge on one side along its length direction, and the lower end forms a shape matching the shape of one side of the metal roof panel wave crest; The upper end of the second sub-support extends horizontally to form a mounting surface for fixing the photovoltaic purlin, and a clamping groove is formed on the upper side of the mounting surface for embedding the clamping edge of the first sub-support, and the lower end forms a shape matching the shape of the other side of the metal roof panel wave crest; The first locking member is arranged through the side surfaces of the first sub-support and the second sub-support, connecting the two into one body to clamp the metal roof panel wave crest.

[0005] By symmetrical branch seat and wave crest bilateral shape matching design, combined with the rigidity connection of transverse locking piece, no perforation clamping and fixing is realized, the roof leakage risk caused by traditional drilling is completely eliminated; meanwhile, the nesting structure of clamping edge and clamping groove provides pre-positioning function, simplifies the installation process, ensures that the load is directly transmitted to the metal roof main body, and improves the structural safety and waterproof reliability of the photovoltaic system.

[0006] In some embodiments, concave positions are respectively formed on both sides of the wave crest of the metal roof panel; the lower ends of the first branch seat and the second branch seat are sequentially formed: an arc-shaped clamping surface matched with the shape of the upper half side surface of the wave crest, a folding corner clamped into the concave position, and a support surface extending outwardly and abutting against the lower half of the wave crest.

[0007] The three-section curved surface structure uniformly distributes pressure stress through the arc-shaped clamping surface, the inner folding corner is embedded into the concave position to provide wind lifting resistance, and the inclined support surface converts the load of the photovoltaic system into roof normal pressure, thereby significantly enhancing the anti-slippage capability of the support seat under wind vibration conditions; at the same time, the deformation of the roof panel caused by local stress concentration is avoided, and the structural stability and roof integrity protection are considered.

[0008] In some embodiments, the first branch seat and the second branch seat have a vertical locking surface between the upper end and the lower end, and a locking hole for the first locking piece to pass through is formed on the locking surface.

[0009] The vertical locking surface makes the locking force direction perpendicular to the wave crest direction of the roof, thereby avoiding the deflection of the support seat caused by oblique stress; the coaxial locking hole ensures that the bolt pre-tightening force uniformly acts on the bilateral branch seats, thereby improving the clamping stiffness while reducing the installation tolerance sensitivity, fundamentally preventing the loosening of the locking piece caused by vibration, and prolonging the service life of the support seat.

[0010] In some embodiments, an installation hole is formed on the installation surface of the second branch seat for locking the second locking piece passing through the photovoltaic purlin.

[0011] The standardized installation hole design allows the quick modular connection of the photovoltaic purlin and the support seat, thereby omitting the on-site welding or custom connecting piece process; the photovoltaic system installation period is greatly shortened and the construction complexity is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of a novel photovoltaic system connecting support suitable for a metal roof of the utility model; Figure 2 is a side view of a novel photovoltaic system connecting support suitable for a metal roof of the utility model from the A direction; Figure 3 is a structural schematic view of a first branch seat in a novel photovoltaic system connecting support suitable for a metal roof of the utility model; Figure 4is a structural schematic view of the second sub-support of the novel photovoltaic system connecting support suitable for the metal roof of the utility model; Figure 5 is a structural schematic view of the wave crest of the metal roof panel; Figure 6 is a structural schematic view of the existing photovoltaic system connecting support.

[0013] Reference signs: 1, first sub-support; 11, clamping edge; 12, arc clamping surface (first sub-support); 13, corner (first sub-support); 14, supporting surface (first sub-support); 15, locking surface; 16, locking hole (first sub-support); 2, second sub-support; 21, mounting surface; 22, clamping groove; 23, arc clamping surface (second sub-support); 24, corner (second sub-support); 25, supporting surface (second sub-support); 26, locking surface; 27, locking hole (second sub-support); 28, mounting hole; 3, first locking member; 4, recess; 5, second locking member; 6, wave crest of metal roof panel; 7, photovoltaic purlin; 8, solar panel; 9, fixed pressing block. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0015] The utility model provides a novel photovoltaic system connecting support suitable for metal roof, including: The first sub-support 1, the second sub-support 2 and the first locking member 3. Among them, the upper end of the first sub-support 1 extends out the clamping edge 11 structure along the length direction integration, and the lower end is formed into the curved surface that is completely matched with the single side profile of the wave crest 6 through stamping; the upper end of the second sub-support 2 is horizontally bent to form the photovoltaic purlin mounting surface 21, the through type clamping groove 22 is set up to nest the clamping edge 11 of the first sub-support 1 in the lower side surface of this mounting surface 21, and the lower end is also matched with the profile of the other side of the wave crest 6; further, the first locking member 3 (preferably M8-M12 bolt) is transversely through the side wall of two sub-supports, and the two are clamped and fixed on the wave crest 6 by screw nut rotation. In this way, rigid connection can be formed without penetrating the roof.

[0016] Specifically, the existing metal roof panel wave peak 6 forms a concave position 4 on both sides, and the structure of the concave position 4 on both sides of the wave peak 6 is optimized on the basis. Specifically, the lower end of the first branch seat 1 and the second branch seat 2 is formed by three continuous bending. Specifically, the first outward arc bending forms an arc clamping surface 12, 23 (the curvature radius is consistent with the wave peak 6) which is attached to the upper half of the wave peak 6, then the inward bending forms a folding angle 13, 24 (hook depth ≥ 3mm) which is inserted into the concave position 4 and matched with the shape of the concave position 4, and finally the outward inclined extension forms a supporting surface 14, 25 (inclination angle 15°-30°) which is in abutment with the lower half of the wave peak 6.

[0017] Further, the middle part of the two branch seats is provided with a vertical locking surface 15, 26 which is perpendicular to the trend of the roof wave peak 6. A coaxial through hole is provided on the locking surface 15, 26 as a locking hole 16, 27, and the first locking member 3 is vertically inserted to apply axial pre-tightening force. It is worth noting that the height of the locking surface 15, 26 is 1 / 3-1 / 2 of the total height of the branch seat, so that the deformation of the branch seat during locking can be avoided, and the vibration load can be dispersed. Preferably, a stainless steel anti-loosening washer is embedded in the locking hole 16, 27 to significantly improve the fatigue resistance.

[0018] Specifically, the mounting surface 21 of the second branch seat 2 is provided with at least two mounting holes 28, and the spacing of the mounting holes 28 is matched with the hole position of the standard photovoltaic purlin 7. The second locking member 5 (such as M10 bolt) passes through the hole to fix the purlin 7. Preferably, a reinforcing rib plate is welded below the mounting surface 21 to resist the torsional moment. In this way, the photovoltaic purlin 7 can be directly connected by bolts without the need for on-site welding, and the installation efficiency is improved by more than 50%.

[0019] The installation operation steps of the connecting support are as follows: Positioning mark: determine the installation position of the connecting support on the top of the wave peak 6 of the metal roof panel and mark it.

[0020] Pre-assembled connecting support: embed the clamping edge 11 of the first branch seat 1 into the clamping groove 22 of the second branch seat 2 to form an integral body; the screw rod of the first locking member 3 is inserted into the locking holes 16, 27 on the side of the first branch seat 1 and the second branch seat 2 at the same time, and the nut is pre-assembled (not tightened), and the support is kept in a fine adjustment state.

[0021] Installation and adjustment: the pre-assembled connecting support is integrally buckled on the wave peak 6 of the metal roof panel; the nut of the first locking member 3 is tightened, and the connecting support is slightly moved up and down during the process until the lower end arc clamping surface 12, 23, folding angle 13, 24 and supporting surface 14, 25 of the connecting support are completely attached to the profile of the wave peak 6, and finally tightened to the designed torque.

[0022] Fixed photovoltaic system: the photovoltaic purlin 7 is placed on the mounting surface 21 of the second branch seat 2, and is locked and fixed by penetrating the mounting hole 28 through the second locking member 5; finally, the solar panel 8 is pressed and fixed on the photovoltaic purlin 7 by using the fixed pressing block (i.e. the original "Z-shaped clamping member 9"), and the single-point installation is completed.

[0023] System integration: repeat the above steps to install the remaining seats, and lay the complete photovoltaic array.

[0024] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A novel photovoltaic system connection bracket suitable for metal roofs, characterized in that, include: The first branch seat (1) and the second branch seat (2), and the first locking member (3); the upper end of the first branch seat (1) is provided with a retaining edge (11) along its length direction, and the lower end is formed to match the shape of one side of the metal roof panel crest (6); the upper end of the second branch seat (2) extends horizontally to form a mounting surface (21) for fixing the photovoltaic purlin (7), and the upper side of the mounting surface (21) is provided with a slot (22) for the retaining edge (11) of the first branch seat (1) to be inserted, and the lower end is formed to match the shape of the other side of the metal roof panel crest (6); the first locking member (3) passes through the side of the first branch seat (1) and the second branch seat (2) at the same time, connecting the two into one to clamp the metal roof panel crest (6).

2. The connecting support according to claim 1, characterized in that, The metal roof panel has recesses (4) formed on both sides of the crest (6); the lower ends of the first branch seat (1) and the second branch seat (2) are formed in sequence as follows: an arc-shaped clamping surface (12,23) that matches the shape of the upper half of the side of the crest (6), a bend (13,24) that fits into the crest recess (4), and a support surface (14,25) that extends outward and abuts the lower half of the crest (6).

3. The connecting support according to claim 1, characterized in that, The first branch seat (1) and the second branch seat (2) have vertical locking surfaces (15, 26) between their upper and lower ends, and locking holes (16, 27) are correspondingly provided on the locking surfaces (15, 26) for the first locking member (3) to pass through.

4. The connecting support according to claim 1, characterized in that, The second branch seat (2) has a mounting hole (28) on its mounting surface (21) for locking the second locking member (5) that passes through the photovoltaic purlin (7).

Images