A flexible roof photovoltaic support for tension and compression

Abstract

The utility model discloses a kind of flexible roof photovoltaic supports for tension and compression combination, including support, waterproof roll stock, upper connector and lower connector;The support includes the support base plate located below and the support column located above;The upper connector is upper connection screw rod, the lower connector includes lower connection screw rod, limit nut, pull rivet nut and pressure pad, limit nut, pressure pad is located above roof profiled steel sheet, the limit nut is used to control the lower connection screw rod enters roof length;The pressure pad passes through pull rivet nut stem body, and is welded and fixed with pull rivet nut head, the pull rivet nut tail is located below roof profiled steel sheet for lower connection screw rod is fixed on roof profiled steel sheet. Compared with prior art, the utility model effectively solves the technical problem that the conventional photovoltaic support is relatively insufficient in compression bearing capacity while having higher tension bearing capacity, improves the overall structural safety and reliability of photovoltaic support.

Description

Technical Field

[0001] This utility model relates to a flexible roof photovoltaic support for tension and compression combination. Background Technology

[0002] With the continuous development of roofing waterproofing material technology in my country, the application of TPO single-layer waterproof membranes in industrial roofing systems is becoming increasingly widespread, and the proportion of photovoltaic power stations built on TPO flexible roofs in the photovoltaic power generation market is also gradually increasing. Currently, photovoltaic supports used in TPO flexible roofs can be divided into two main categories according to their connection method with the original roof structure: non-penetrating and penetrating. Non-penetrating photovoltaic supports mainly rely on the welding performance of TPO waterproof membranes to hot-air weld the TPO waterproof membrane on the photovoltaic support to the roof waterproof membrane. This type of photovoltaic support generally has a low load-bearing capacity, and the roof deformation is relatively obvious under constant loads. When large wind loads occur, there may be a risk of tearing the original roof waterproof membrane. Penetrating photovoltaic supports, on the other hand, connect to the roof by creating openings in the original roof and anchoring the components of the photovoltaic support to the original roof profiled steel sheet or purlins. This utility model belongs to the category of penetrating photovoltaic supports.

[0003] Currently, most TPO photovoltaic (PV) bearings on the market focus on improving pull-out resistance, while paying insufficient attention to their compressive strength. In actual PV engineering applications, PV bearings bear upward pull-out forces under wind suction conditions, while under most conditions such as self-weight, wind pressure, and snow loads, they mainly bear downward pressure. Therefore, compressive strength is also a key indicator affecting the safety and stability of the bearing and urgently needs to be given full consideration in structural design. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a new type of roof photovoltaic support for tension and compression combination, which solves the problem that the existing photovoltaic supports have high tensile strength but relatively insufficient compressive strength.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A flexible roof photovoltaic support for tension and compression assembly includes a support member, a waterproof membrane, an upper connector, and a lower connector. The waterproof membrane is disposed on the support member. The support member includes a lower support base plate and an upper support column. The upper connector is an upper connecting screw, and the lower connector includes a lower connecting screw, a limiting nut, a rivet nut, and a pressure washer. The upper connecting screw is fixed to the upper end of the support column and is connected to the bracket guide rail to fix the bracket guide rail to the upper end face of the support column. The upper end of the lower connecting screw is fixed to the support column. At the lower end of the supporting plate, the lower end of the lower connecting screw penetrates the roof surface, passing through the roof waterproof membrane, the roof rock wool insulation layer, and the roof profiled steel sheet from top to bottom. The limiting nut, the pressure washer, and the rivet nut are sequentially installed on the lower connecting screw. The limiting nut and the pressure washer are located above the roof profiled steel sheet. The limiting nut is used to control the length of the lower connecting screw entering the roof surface. The pressure washer passes through the rivet nut rod and is welded and fixed to the head of the rivet nut. The tail of the rivet nut is located below the roof profiled steel sheet to fix the lower connecting screw to the roof profiled steel sheet.

[0006] The support column is a support cylinder.

[0007] The supporting base plate is circular.

[0008] The waterproof membrane is wrapped around the lower part of the support column and the upper surface of the support base plate.

[0009] The waterproof membrane for the support is made of the same material as the waterproof membrane for the roof. The joints between the waterproof membrane and the support column and the support base plate are sealed with weather-resistant waterproof sealant. The edge of the waterproof membrane extends beyond the support base plate and is fixed to the roof waterproof membrane by hot air welding to prevent rainwater from the roof from seeping into the lower part of the support.

[0010] The rivet nut is a flat-head slotted rivet nut.

[0011] The pressure-bearing gasket is welded to the rivet nut.

[0012] The pressure-bearing gasket is a French-style gasket.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model discloses a roof photovoltaic support for tension and compression combination. The pressure-bearing gasket provides compressive bearing capacity for the photovoltaic support, and the rivet nut is fixed to the flexible roof profiled steel plate by a rivet gun to provide tensile bearing capacity for the photovoltaic support.

[0014] This utility model discloses a roof photovoltaic support for tension and compression combination. The upper end of the support member is connected to the bracket guide rail through an upper connector, and the lower end is connected to the roof profiled steel sheet through a lower connector.

[0015] Both the supporting column and the supporting base plate are made of stainless steel. The lower part of the supporting column and the upper surface of the supporting base plate are covered with a waterproof membrane. The waterproof membrane of the support and the roof waterproof membrane are made of the same material. The connection between the waterproof membrane and the supporting column and the supporting base plate is sealed with weather-resistant waterproof sealant. The edge of the waterproof membrane extends beyond the supporting base plate and is fixed to the roof waterproof membrane by hot air welding, which can effectively prevent rainwater from the roof from seeping into the lower part of the support.

[0016] The limiting nut is accurately positioned on the lower connecting screw by measuring its distance from the supporting base plate. It is used to control the length of the lower connecting screw entering the roof and avoid compressing the roof rock wool insulation layer. The limiting nut is a flange nut.

[0017] The rivet nut is a flat-head slotted rivet nut, and the pressure-bearing washer is a French-type washer. The pressure-bearing washer passes through the rivet nut rod and is welded and fixed to the head of the rivet nut. The head of the rivet nut and the pressure-bearing washer are located on the upper part of the profiled steel plate to provide compressive bearing capacity for the photovoltaic support. The rivet nut is fixed to the profiled steel plate of the flexible roof by a rivet gun to provide pull-out bearing capacity for the photovoltaic support. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is an installation diagram of this utility model.

[0021] In the diagram, 1. Supporting cylinder, 2. Supporting base plate, 3. Waterproof membrane, 4. Upper connecting screw, 5. Lower connecting screw, 6. Limiting nut, 7. Rivet nut, 8. Pressure bearing gasket, 9. Bracket guide rail, 10. Roof waterproof membrane, 11. Roof rock wool insulation layer, 12. Roof profiled steel sheet. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings: like Figure 1 , 2 As shown in Figure 3, the flexible roof photovoltaic support for tension and compression combination of this utility model includes a support component and a connector. The support component includes a support column 1, a support base plate 2, and a waterproof membrane 3. The connector is divided into an upper connector and a lower connector according to its location. The upper connector is an upper connecting screw 4, and the lower connector includes a lower connecting screw 5, a limiting nut 6, a rivet nut 7, and a pressure-bearing washer 8. The upper end of the support component is connected to the bracket guide rail 9 through the upper connector, and the lower end is connected to the roof profiled steel sheet 12 through the lower connector.

[0023] Waterproof membrane 3 is selected from TPO waterproof membrane.

[0024] The upper part of the support is a supporting cylinder 1, and the lower part is a supporting base plate 2. The lower part of the supporting cylinder 1 and the upper surface of the supporting base plate 2 are covered with TPO waterproof membrane. The connection between the TPO waterproof membrane and the supporting cylinder 1 and the supporting base plate 2 is sealed with weather-resistant waterproof sealant. The edge of the TPO waterproof membrane extends beyond the supporting base plate 2 and is fixed to the roof waterproof membrane 10 by hot air welding, which can effectively prevent rainwater from the roof from seeping into the lower part of the support.

[0025] The limiting nut 6, rivet nut 7, and bearing washer 8 are all fixed to the lower connecting screw 5. Below the lower connecting screw 5, in sequence, are the roof waterproofing membrane passing through the roof, the roof rock wool insulation layer, and the roof profiled steel sheet. The rock wool in the roof rock wool insulation layer has a low load-bearing capacity and a small compression modulus. To prevent large deformation of the rock wool under stress, the supporting base plate 2 mainly serves a stabilizing function and is not a load-bearing component. Therefore, the bearing washer 8 is installed above the roof profiled steel sheet on the lower connecting screw 5 as the main load-bearing component to improve compressive strength.

[0026] Both ends of the support component have threaded connection holes at their centers. The lower part of the upper connecting screw 4 is threaded to the upper threaded connection hole of the support component, and the upper part of the upper connecting screw 4 is fixed to the photovoltaic bracket guide rail 9 by a nut. The upper part of the lower connecting screw 5 is threaded to the lower threaded connection hole of the support component. The limiting nut 6, rivet nut 7, and bearing washer 8 are assembled sequentially from top to bottom on the lower part of the lower connecting screw 5.

[0027] The limiting nut 6 is accurately positioned on the lower connecting screw 5 by measuring its distance from the supporting base plate 2. It is used to control the length of the lower connecting screw 5 entering the roof and avoid compressing the roof rock wool insulation layer 11. The limiting nut 6 is a flange nut. The rivet nut 7 is a flat-headed slotted rivet nut, and the pressure washer 8 is a French-style washer. The pressure washer 8 passes through the body of the rivet nut 7 and is welded to the head of the rivet nut 7. The head of the rivet nut 7 and the pressure washer 8 are located on the upper part of the roof profiled steel sheet 12 to provide compressive bearing capacity for the photovoltaic support. The body of the rivet nut 7 is fixed to the roof profiled steel sheet 12 by a rivet gun to provide pull-out bearing capacity for the photovoltaic support.

[0028] The construction method of this utility model of flexible roof photovoltaic support for tension and compression combination is as follows: The first step is to drill mounting holes in the roof and clean the drilling area; The second step is to weld the pressure-bearing gasket 8 onto the rivet nut 7 (this step is done in the factory), and use a rivet gun to insert the rivet nut 7 into the mounting hole and fix it onto the roof profiled steel sheet 12. The third step is to install the lower connecting screw 5 and fix it to the rivet nut 7. After fixing, use a wrench to tighten the support and the lower connecting screw 5. Step 4: The supporting waterproof membrane 3 is hot-air welded and fixed to the roof waterproof membrane 10; This invention effectively solves the technical problem of conventional photovoltaic supports having high tensile strength but relatively insufficient compressive strength, significantly improving the overall structural safety and reliability of photovoltaic supports. By optimizing the comprehensive mechanical properties of individual supports, without increasing the opening size, it improves compressive strength while ensuring tensile strength requirements and not affecting roof insulation performance. This allows for a reduction in the number of supports used in photovoltaic array design, lowering material and construction costs. Furthermore, the reduced support density correspondingly decreases the number of roof openings, reducing damage to the original roof waterproofing and structural layers, thus enhancing the overall durability of the system.

Claims

1. A flexible roof photovoltaic support for tension-compression combination, characterized in that, The system includes a support component, a waterproof membrane, an upper connector, and a lower connector. The waterproof membrane is mounted on the support component. The support component includes a lower support base plate and an upper support column. The upper connector is an upper connecting screw, and the lower connector includes a lower connecting screw, a limiting nut, a rivet nut, and a pressure washer. The upper connecting screw is fixed to the upper end of the support column and is connected to a bracket guide rail to fix the bracket guide rail to the upper end face of the support column. The upper end of the lower connecting screw is fixed to the lower end of the support base plate. The lower connecting screw penetrates the roof surface at its lower end, passing through the roof waterproof membrane, the roof rock wool insulation layer, and the roof profiled steel sheet in sequence from top to bottom. The limiting nut, the pressure washer, and the rivet nut are sequentially installed on the lower connecting screw. The limiting nut and the pressure washer are located above the roof profiled steel sheet. The limiting nut is used to control the length of the lower connecting screw entering the roof surface. The pressure washer passes through the rivet nut rod body and is welded and fixed to the head of the rivet nut. The tail of the rivet nut is located below the roof profiled steel sheet to fix the lower connecting screw to the roof profiled steel sheet.

2. The flexible roof photovoltaic support for tension-compression combination according to claim 1, characterized in that, The support column is a support cylinder.

3. The flexible roof photovoltaic support for tension-compression combination according to claim 1, characterized in that, The supporting base plate is circular.

4. The flexible roof photovoltaic support for tension-compression combination according to claim 1, characterized in that, The waterproof membrane covers the lower part of the support column and the upper surface of the support base plate.

5. The flexible roof photovoltaic support for tension-compression combination according to claim 4, characterized in that, The waterproof membrane for the support is made of the same material as the waterproof membrane for the roof. The joints between the waterproof membrane and the support column and the support base plate are sealed with weather-resistant waterproof sealant. The edge of the waterproof membrane extends beyond the support base plate and is fixed to the roof waterproof membrane by hot air welding to prevent rainwater from the roof from seeping into the lower part of the support.

6. The flexible roof photovoltaic support for tension-compression combination according to claim 1, characterized in that, The rivet nut is a flat-head slotted rivet nut.

7. The flexible roof photovoltaic support for tension-compression combination according to claim 1, characterized in that, The pressure-bearing gasket is welded to the rivet nut.

8. The flexible roof photovoltaic support for tension-compression combination according to claim 7, characterized in that, The pressure-bearing gasket is a French-style gasket; the pressure-bearing gasket provides compressive bearing capacity for the photovoltaic support, and the rivet nut is fixed to the flexible roof profiled steel sheet by a rivet gun to provide tensile bearing capacity for the photovoltaic support.

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