Photovoltaic support mounting structure of ALC roof

Abstract

The utility model discloses a photovoltaic support installation structure of an ALC roof. The photovoltaic support installation structure comprises a base, a C-shaped purline, a purline support and an M-shaped water guide groove. The C-shaped purlin is installed on the ALC roof through a plurality of bases arranged at the lower end of one side face, the C-shaped purlin and the bases are fixedly connected through purlin supports, two first bolts are arranged at the upper ends of the bases, two deformed steel bars are arranged at the lower ends of the bases, and the deformed steel bars and the ALC roof are connected through punching and are fixedly installed in cooperation with glue; the C-shaped purlines are arranged in parallel, the M-shaped water guiding grooves are transversely formed between the C-shaped purlines, the edges of the two sides of the photovoltaic module are erected on the M-shaped water guiding grooves in the two sides respectively, and rainwater on the surface of the photovoltaic module is drained outwards through the M-shaped water guiding grooves. A light roof photovoltaic anchoring, guiding and draining integrated system is constructed, and the problems that an ALC roof is weak in bearing capacity and poor in waterproof performance are solved through collaborative design of embedded steel bar anchoring and a water guiding sealing structure.

Description

A photovoltaic support structure for ALC roofs Technical Field

[0001] This utility model relates to the field of photovoltaic module installation technology, specifically a photovoltaic support installation structure for an ALC roof. Background Technology

[0002] Currently, distributed photovoltaic systems are mainly used in building structures with strong load-bearing capacity, such as cement roofs and corrugated steel roofs. However, for ALC lightweight roofs, traditional installation methods present the following technical challenges:

[0003] 1) Insufficient load-bearing capacity

[0004] ALC panels are porous, lightweight concrete materials made primarily from silica sand, cement, and lime, cured under high-temperature, high-pressure steam. Their density is only one-quarter that of ordinary concrete (specific gravity approximately 0.5). While ALC panels offer advantages such as lightweight, thermal insulation, and fire resistance, their relatively low load-bearing capacity limits the installation methods for photovoltaic (PV) systems. Traditional counterweight fixing methods, due to their excessive weight, can lead to deformation or even damage to the ALC roof structure, posing serious safety hazards.

[0005] 2) The waterproof layer is easily damaged.

[0006] Using mechanical drilling to fix the brackets will damage the original waterproofing layer of the roof, leading to a risk of leakage. Conventional sealants or localized waterproofing repairs are insufficient to withstand long-term temperature changes, UV aging, and rain erosion, affecting the building's lifespan.

[0007] 3) Inadequate drainage design

[0008] The installation of photovoltaic modules may alter the original drainage path of the roof, leading to water accumulation or water erosion at the joints, thus exacerbating the risk of leakage. In existing technologies, some solutions do not adequately consider the impact of module installation angle on drainage efficiency, or lack auxiliary water-guiding structures, resulting in rainwater retention and affecting photovoltaic power generation efficiency and building safety.

[0009] Therefore, there is an urgent need for a photovoltaic bracket installation solution suitable for ALC roofs. Summary of the Invention

[0010] To address the shortcomings of existing technologies, this utility model discloses a photovoltaic support installation structure for ALC roofs, in order to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic support installation structure for an ALC roof, comprising a hot-dip galvanized base, C-shaped purlins, purlin supports, and M-shaped water channels; the C-shaped purlins are installed on the ALC roof via several bases located at the lower end of one side, and the C-shaped purlins are fixedly connected to the bases via purlin supports; wherein, two first bolts are provided at the upper end of the base, the first bolts are symmetrically installed on the upper surface of the base, and two threaded steel bars are provided at the lower end of the base, the threaded steel bars are symmetrically installed on the lower surface of the base, and the first bolts and the threaded steel bars are arranged in a cross shape; the threaded steel bars are connected to the ALC roof by drilling and are fixedly installed with adhesive.

[0012] The C-shaped purlins are arranged in parallel, and the M-shaped water guide channels are placed horizontally between the C-shaped purlins. The two sides of the photovoltaic module are respectively built on the M-shaped water guide channels on both sides, and the rainwater on the surface of the photovoltaic module is guided outward through the M-shaped water guide channels.

[0013] Preferably, the lower end wall of the purlin bracket is assembled with the first bolt by a nut, and the upper end wall of the purlin bracket is connected to the side wall of the C-shaped purlin by a second bolt.

[0014] Preferably, the upper surface of the base is provided with a layer of waterproof membrane, which is covered on the surface of the base by hot-melt treatment, thereby effectively achieving waterproofing.

[0015] Preferably, a support plate is provided in the middle of the M-shaped water guide channel, and a fixing clip is assembled through the mounting holes provided on the support plate to fix the photovoltaic module.

[0016] Preferably, a support stool is provided at the center of the lower end of the M-shaped water guide channel to support the M-shaped water guide channel.

[0017] Preferably, a T-shaped waterproof cover is provided at the interval between the photovoltaic modules, and the upper end of the T-shaped waterproof cover covers the upper surface of the photovoltaic modules on both sides, thereby preventing rainwater from accumulating inside the lower end of the photovoltaic modules.

[0018] Preferably, the lower end of the T-shaped waterproof cover is provided with two limiting plates to prevent the T-shaped waterproof cover from shifting position.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, a composite anchoring technology of rebar adhesive and threaded steel is adopted. The load-bearing foundation is formed through the dual action of chemical adhesive and mechanical interlocking, which breaks through the limitation of traditional counterweight blocks on the strength of lightweight roof structures. While ensuring load safety, lightweight installation is achieved, which is particularly suitable for low load-bearing roof structures such as ALC.

[0021] 2. In this utility model, a triple waterproof system is constructed, which includes SBS hot-melt roll material, water guide channel and waterproof cover plate: the hot-melt seal on the base surface forms the first waterproof barrier, the M-shaped water guide channel constructs an active drainage channel, and the T-shaped cover plate forms a seepage-proof covering layer, forming a three-dimensional waterproof network, effectively solving the leakage hazards caused by traditional drilling installation, and realizing the integration of photovoltaic system and building waterproofing. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 is a schematic diagram of the overall structure of the photovoltaic bracket installation structure of this utility model;

[0025] Figure 2 is a structural schematic diagram of the photovoltaic bracket installation structure of this utility model;

[0026] Figure 3 is a schematic diagram of the assembly of the base and purlin of this utility model;

[0027] Figure 4 is a structural schematic diagram of the base of this utility model from one perspective;

[0028] Figure 5 is a structural schematic diagram of the T-shaped waterproof cover of this utility model from one perspective;

[0029] The following are the labels in the diagram: 1. Base; 101. First bolt; 102. Threaded steel bar; 103. Waterproof membrane; 2. C-shaped purlin; 3. Purlin support; 301. Nut; 302. Second bolt; 4. M-shaped water channel; 401. Support plate; 402. Mounting hole; 403. Relay; 5. T-shaped waterproof cover; 501. Limiting plate; 6. Photovoltaic module. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] Example: As shown in Figures 1-5, a photovoltaic support structure for an ALC roof includes a hot-dip galvanized base 1, C-shaped purlins 2, purlin supports 3, and M-shaped drainage channels 4. The C-shaped purlins 2 are installed on the ALC roof via several bases 1 located at the lower end of one side. The C-shaped purlins 2 and the bases 1 are fixedly connected by the purlin supports 3. The upper end of each base 1 has two 40mm long and 14mm diameter first bolts 101 symmetrically installed on the upper surface of the base 1. The base 1 is 300mm long, 200mm wide, and 10mm thick. The lower end of each base 1 has two 130mm long and... A 16mm diameter threaded steel bar 102 is symmetrically installed on the lower surface of the base 1, and the first bolt 101 and the threaded steel bar 102 are arranged in a cross shape. A layer of SBS waterproof membrane 103 is provided on the upper surface of the base 1. The waterproof membrane 103 is covered on the surface of the base 1 by hot-melt treatment, thereby effectively achieving waterproof treatment. The threaded steel bar 102 is connected to the ALC roof by drilling and is fixedly installed by adhesive. The lower wall of the purlin bracket 3 is assembled with the first bolt 101 by a nut 301, and the upper wall of the purlin bracket 3 is connected to the side wall of the C-shaped purlin 2 by a second bolt 302.

[0032] The C-shaped purlins 2 are arranged in parallel, and the M-shaped water guide channels 4 are placed horizontally between the C-shaped purlins 2. The two sides of the photovoltaic module 6 are respectively built on the M-shaped water guide channels 4 on both sides, and the rainwater on the surface of the photovoltaic module 6 is guided outward through the M-shaped water guide channels 4. A support plate 401 is provided in the middle of the M-shaped water guide channel. The two sides of the support plate 401 are fixedly installed on the side wall of the M-shaped water guide channel. Fixing clips are installed through the mounting holes 402 provided on the support plate 401, thereby mounting the photovoltaic module. The component 6 is fixed in place. A stool 403 is provided at the center of the lower end of the M-shaped water channel 4 to support the M-shaped water channel 4. A T-shaped waterproof cover 5 is provided at the interval between the photovoltaic modules 6. The upper end of the T-shaped waterproof cover 5 covers the upper surface of the photovoltaic modules 6 on both sides, thereby preventing rainwater from accumulating inside the lower end of the photovoltaic modules 6. Two limiting plates 501 are provided at the lower end of the T-shaped waterproof cover 5 to prevent the T-shaped waterproof cover 5 from shifting position.

[0033] In practical use:

[0034] 1) Drilling and cleaning holes

[0035] ① Drill holes in the roof according to the design requirements. The location of the holes is precisely located at the crossbeam of the roof using equipment and instruments. The diameter of the holes is 18mm and the depth is 130mm.

[0036] ② Use a hair dryer and brush to clean the hole until there is no dust or water stains on the inner wall of the hole.

[0037] 2) Installation of bracket base 1

[0038] ① After cleaning, inject anchoring adhesive into the hole, and then quickly insert the base 1 threaded steel bar 102 with its side facing downwards into the hole. During installation, the steel bar must be straight; use an adhesive injector to inject the adhesive, slowly pulling out the injector while injecting, and slowly insert the prepared steel bar into the hole while rotating it to ensure that the anchoring adhesive is evenly adhered to the surface of the steel bar and the thread gaps; the inserted steel bar should not be disturbed.

[0039] ② Apply structural adhesive around the two M14 first bolts 101 above the hot-dip galvanized base 1.

[0040] 3) Waterproofing treatment

[0041] ① After applying structural adhesive around the two M14 bolts above the hot-dip galvanized base 1, place the SBS waterproof membrane 103 onto the hot-dip galvanized base 1.

[0042] ② Perform heat fusion treatment on SBS waterproof membrane 103.

[0043] 4) Install brackets

[0044] ① Install the bracket purlin 3 and C-shaped purlin 2 on the base 1.

[0045] ② Next, install the bracket M-shaped water channel 4 parts and fix them on the C-shaped purlin 2.

[0046] ③ Install the bracket trestle 403 and fix it in the center of the M-shaped water guide channel 4.

[0047] 5) Install photovoltaic modules 6

[0048] ① Install the photovoltaic module 6 support plate 401 and fix it on the M-shaped water channel 4.

[0049] ② Install T-shaped waterproof covers 5 between the photovoltaic modules 6 to complete the installation.

[0050] This invention employs a novel installation process for ALC roof photovoltaic modules 6, effectively solving the problem that ALC lightweight roofs cannot use counterweights for load-bearing. The support is fixed by drilling holes and adhesively bonding a hot-dip galvanized steel plate base 1. Simultaneously, to avoid potential impact on roof waterproofing from drilling, the base 1 is effectively waterproofed after installation using hot-melt SBS waterproof membrane 103. The roof photovoltaic modules 6 are installed perpendicular to the roof ridge, allowing most water to flow out through their surface. An M-shaped water channel is constructed on the C-shaped purlins 2 for internal water drainage, directing the remaining water to the roof edges. The water then flows into the ground sewer system through the existing roof drains.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic support installation structure for an ALC roof, characterized in that: The system includes a base, C-shaped purlins, purlin supports, and M-shaped water channels. The C-shaped purlins are installed on the ALC roof via several bases located on the lower side of one side. The C-shaped purlins and the bases are fixedly connected by purlin supports. Each base has two first bolts symmetrically installed on its upper surface, and two threaded steel bars symmetrically installed on its lower surface, with the first bolts and the threaded steel bars arranged in a cross pattern. The threaded steel bars are connected to the ALC roof by drilling and are fixed with adhesive. The C-shaped purlins are arranged in parallel, and the M-shaped water channels are placed horizontally between the C-shaped purlins. The two edges of the photovoltaic modules are respectively built on the M-shaped water channels on both sides, and the M-shaped water channels guide rainwater from the surface of the photovoltaic modules outward.

2. The photovoltaic support installation structure for an ALC roof according to claim 1, characterized in that: The lower end wall of the purlin bracket is assembled with the first bolt by a nut, and the upper end wall of the purlin bracket is connected to the side wall of the C-shaped purlin by a second bolt.

3. The photovoltaic support installation structure for an ALC roof according to claim 1, characterized in that: The upper surface of the base is provided with a layer of waterproof membrane, which is covered on the surface of the base by hot-melt treatment.

4. The photovoltaic support installation structure for an ALC roof according to claim 1, characterized in that: A support plate is provided in the middle of the M-shaped water guide channel. The photovoltaic module is fixed by mounting the fixing clip through the mounting holes provided on the support plate.

5. The photovoltaic support installation structure for an ALC roof according to claim 1, characterized in that: A trestle is provided at the center of the lower end of the M-shaped water guide channel to support the M-shaped water guide channel.

6. The photovoltaic support installation structure for an ALC roof according to claim 1, characterized in that: A T-shaped waterproof cover is provided at the interval between the photovoltaic modules, and the upper end of the T-shaped waterproof cover covers the upper surface of the photovoltaic modules on both sides.

7. The photovoltaic support installation structure for an ALC roof according to claim 6, characterized in that: The lower end of the T-shaped waterproof cover is provided with two limiting plates to prevent the T-shaped waterproof cover from shifting position.

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