Roof photovoltaic supporting device with stability

Abstract

The utility model provides a roof photovoltaic support device with stability, comprising a support main body, the upper end of the support main body is provided with an upper interface used for connecting a photovoltaic assembly, the lower end of the support main body is provided with a lower interface used for connecting a fixing assembly, and the bottom of the support main body is provided with an abutting part horizontally extending outwards; the waterproof coiled material sheet is arranged above the fixing assembly, and a first through hole is formed in the center of the waterproof coiled material sheet; the substrate is nested below the waterproof roll sheet, the substrate comprises a base body part and a limiting part protruding upwards from the base body part, the limiting part is arranged in the first through hole in a penetrating mode, a second through hole is formed in the center of the limiting part, the supporting main body is arranged in the second through hole in a penetrating mode, and the supporting main body is arranged in the second through hole in a penetrating mode. And the abutting part is limited below the limiting part. In this way, the overall connection strength of the supporting device is effectively improved, and the installation stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of building-integrated photovoltaics (BIPV) technology, and in particular to a stable roof photovoltaic support device suitable for photovoltaic system installation on single-layer waterproof roofing membranes. Background Technology

[0002] Building-integrated photovoltaics (BIPV) involves installing photovoltaic panels on rooftops to fully utilize sunlight and also enhance the aesthetics of the building. Currently, most building roofs require waterproofing, such as by laying waterproof membranes. When installing photovoltaic panels on such waterproof roofs, factors such as installation stability, waterproofing performance, and ease of installation must be considered. The photovoltaic support structure is a crucial component of the rooftop solar system, and its installation must balance structural stability, waterproofing, and ease of construction. Traditional photovoltaic brackets (such as CN 219411535U) connect to the roof using fixing plates and self-tapping screws. While this reduces construction debris falling, it still presents the following problems:

[0003] (1) Insufficient sealing: The contact surface between the support and the waterproof membrane is prone to gaps due to wind vibration or thermal expansion and contraction, which may lead to water seepage risk;

[0004] (2) Weak impact resistance: It lacks a buffer structure and is prone to loosening when subjected to long-term vibration of photovoltaic panels or extreme weather.

[0005] (3) High installation accuracy dependence: The existing connection method between the support and the skirt requires strict alignment during construction, and the seal is prone to failure due to deviation.

[0006] Therefore, this utility model proposes an improvement scheme, which optimizes the sealing performance and installation stability by adding an elastic sealing element and a limiting structure. Utility Model Content

[0007] To address the aforementioned issues, this utility model proposes a robust roof photovoltaic support device that solves the problems of poor sealing, weak impact resistance, and high installation accuracy requirements of traditional supports.

[0008] The main contents of this utility model include: a support body, which has an upper interface for connecting photovoltaic modules at its upper end and a lower interface for connecting fixed components at its lower end, and the bottom of the support body has an outwardly horizontally extending abutment part;

[0009] A waterproof membrane sheet is disposed above the fixing component, and the waterproof membrane sheet has a first perforation at its center;

[0010] A substrate is nested below the waterproof roll sheet. The substrate includes a base portion and a limiting portion that protrudes upward from the base portion. The upper end surface of the base portion is connected to the lower end surface of the waterproof roll sheet. The limiting portion passes through the first through hole. The center of the limiting portion has a second through hole. The supporting body passes through the second through hole, and the abutting portion is restricted below the limiting portion.

[0011] Preferably, the support body has an annular groove in its circumference, a sealing element is embedded in the groove, the groove extends obliquely upward in the axial direction, the upper end of the sealing element is engaged in the groove, and the lower end extends to the upper surface of the waterproof membrane sheet to form an elastic abutment.

[0012] Preferably, the bottom of the seal has an upwardly protruding clearance portion to form a clearance space, and the portion of the limiting portion protruding from the upper end face of the waterproof membrane is placed within the clearance space.

[0013] Preferably, the slot is composed of a first sidewall and a second sidewall, the second sidewall being a segmented inclined structure comprising a first inclined segment and a second inclined segment connected sequentially along the depth of the slot.

[0014] Preferably, the first inclined section is located near the opening end of the card slot; the second inclined section is located near the bottom end of the card slot.

[0015] Preferably, the seal is configured as a conical structure, and the seal may be made of an elastic material.

[0016] Preferably, the fixing component includes an anchoring base plate and a plurality of self-locking fasteners, the anchoring base plate being located below the substrate, and the self-locking fasteners passing through the anchoring base plate and connecting to the roof.

[0017] Preferably, a central stud is fixed on the anchoring base plate, the threaded end of the central stud is facing upward, the inner wall of the lower interface is fitted with a thread, and the central stud and the lower interface are detachably connected by the thread.

[0018] Preferably, the self-locking fastener can be a self-tapping screw, which passes through a through hole in the anchoring base plate and is connected to the roof.

[0019] Preferably, the area of ​​the waterproof membrane sheet is larger than the area of ​​the substrate, and the outer edge of the waterproof membrane sheet extends to the outside of the substrate.

[0020] The beneficial effects of this utility model are as follows: the substrate is provided with a raised limiting part, and the support body has an abutting part that is confined within the limiting part, so as to improve the installation stability of the support body, strengthen the stability of the device, and ensure that the device has a sufficiently large upward pulling force; the sealing element covers the connection gap between the support body, the waterproof membrane sheet, and the substrate, effectively preventing water seepage; the sealing element is made of an elastic material, which can absorb the vibration energy of the photovoltaic system and reduce the risk of the support device becoming loose. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment;

[0022] Figure 2 This is a front view structural diagram of a preferred embodiment;

[0023] Figure 3 This is a cross-sectional structural schematic diagram of a preferred embodiment;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0025] Figure label:

[0026] 1. Support body; 11. Upper interface; 12. Lower interface; 13. Abutment part; 14. Slot; 141. First side wall; 142. Second side wall; 1421. First inclined section; 1422. Second inclined section; 2. Waterproof roll sheet; 3. Substrate; 31. Base part; 32. Limiting part; 4. Fixing assembly; 41. Anchoring base plate; 42. Self-locking fastener; 43. Central stud; 5. Sealing element; 51. Clearance part. Detailed Implementation

[0027] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 and 2 As shown, this application proposes a stable roof photovoltaic support device, including a support body 1, a waterproof roll sheet 2, a substrate 3, a fixing component 4, and a sealing component 5.

[0029] like Figure 1-4As shown, the upper end of the support body 1 is provided with an upper interface 11 for connecting to a photovoltaic module (not shown in the figure), and the lower end of the support body 1 is provided with a lower interface 12 for connecting to a fixing component 4. The bottom of the support body 1 has an outwardly extending horizontally extending abutment portion 13. A waterproof roll sheet 2 is disposed above the fixing component 4 and the substrate 3, and the center of the waterproof roll sheet 2 has a first perforation. The substrate 3 is nested at the bottom of the waterproof roll sheet 2. The substrate 3 includes a base portion 31 and a limiting portion 32 protruding upward from the base portion 31. The upper end surface of the base portion 31 is in contact with the lower end surface of the waterproof roll sheet 2. The limiting portion 32 passes through the first perforation and protrudes upward. The center of the limiting portion 32 has a second perforation. The support body 1 passes through the second perforation, and the abutment portion 13 of the support body 1 is restricted below the limiting portion 32. Preferably, in a specific embodiment, the substrate 3 and the support body 1 are connected by welding to improve the sealing and airtightness and connection stability of the support device.

[0030] like Figure 1-3 As shown, specifically, the diameter of the first through hole is slightly larger than the outer diameter of the limiting part, so that the limiting part 32 is nested in the first through hole; the diameter of the abutting part 13 is larger than the diameter of the second through hole and smaller than the inner diameter of the limiting part 32, so that the abutting part 13 is restricted below the limiting part 32; the diameter of the supporting body 1 is slightly smaller than the diameter of the second through hole, so that the supporting body 1 passes through the second through hole with a clearance fit. When the fixing component 4 and the lower interface 12 are in the connected state, the abutting part 13 of the supporting body 1 is restricted between the limiting part 32 and the fixing component 4, effectively improving the installation stability of the supporting body 1 and strengthening the stability of the supporting device.

[0031] like Figure 1-4 As shown, the support body 1 has an annular groove 14 circumferentially extending upwards towards the axis of the support body 1. The sealing member 5 is embedded in the groove 14, with its upper end engaging the groove 14 and its lower end extending to the upper surface of the waterproof membrane sheet 2 to form an elastic abutment. The bottom of the sealing member 5 has an upwardly protruding clearance portion 51 to form a clearance space. When the sealing member 5 is engaged on the upper surface of the waterproof membrane sheet 2, the portion of the limiting portion 32 protruding from the upper surface of the waterproof membrane sheet 2 is correspondingly placed within this clearance space to prevent interference between the sealing member 5 and the limiting portion 32. The sealing member 5 can correspondingly cover the connection between the waterproof membrane sheet 2 and the substrate 3 to prevent water seepage at the connection point. Preferably, the sealing member 5 is a conical structure to guide rainwater away from the connection point.

[0032] like Figure 4As shown, in a specific embodiment, the groove of the slot 14 is composed of a first sidewall 141 and a second sidewall 142. The second sidewall 142 is a segmented inclined structure, including a first inclined segment 1421 and a second inclined segment 1422 connected sequentially along the groove depth direction. The first inclined segment 1421 is located near the opening end of the slot 14, and the second inclined segment 1422 is located near the bottom end of the slot 14. In this embodiment, the angle between the first inclined segment 1421 and the axis of the support body 1 is greater than the angle between the second inclined segment 1422 and the axis of the support body 1. This allows the first inclined segment 1421 to provide a quick guiding function, while the second inclined segment 1422 enhances the locking stability, optimizes the force distribution of the seal 5 in the axial direction, enhances support stability, and improves buffering performance. The seal 5 is made of an elastic material that can absorb the vibration energy of the photovoltaic system, reduce the risk of loosening of the support device, and strengthen stability. In a specific embodiment, the seal 5 can be made of a rubber gasket. The rubber gasket can expand adaptively under pressure to prevent water leakage and improve sealing.

[0033] like Figure 1-3 As shown, the fixing component 4 includes an anchoring base plate 41 and several self-locking fasteners 42. The anchoring base plate 41 is located below the substrate 3, and the self-locking fasteners 42 pass through the anchoring base plate 41 and connect to the roof. A central stud 43 is fixed on the anchoring base plate 41, with the threaded end of the central stud 43 facing upwards. A thread is provided in the lower interface 12, and the central stud 43 and the lower interface 12 are threaded together to achieve a detachable connection between the fixing component 4 and the support body 1. In a specific embodiment, the self-locking fasteners 42 can be self-tapping screws, which pass through through holes opened on the anchoring base plate 41 and connect to the roof panel. Preferably, the self-locking fasteners 42 are evenly spaced to improve the connection stability between the fixing component 4 and the roof panel. In one specific embodiment, four sets of self-locking fasteners 42 are evenly arranged on the anchoring base plate 41.

[0034] like Figure 1-3 As shown, the area of ​​the waterproof membrane sheet 2 is larger than the area of ​​the substrate 3 to ensure that the outer edge of the waterproof membrane sheet 2 extends to the outside of the substrate 3, and the waterproof membrane sheet 2 can cover the substrate 3 to achieve a waterproof effect. In this specific embodiment, the waterproof membrane sheet 2, the substrate 3, and the anchoring substrate 41 are all circular structures. The diameter of the waterproof membrane sheet 2 is larger than the diameter of the substrate 3, and the diameter of the substrate 3 is larger than the diameter of the anchoring substrate 41, so that the outer peripheral edge of the waterproof membrane sheet 2 extends beyond the substrate 3, and the outer peripheral edge of the substrate 3 extends beyond the anchoring substrate 41, facilitating the sealing construction between the waterproof membrane sheet 2 and the original roof waterproof membrane layer. In other embodiments, the waterproof membrane sheet 2, the substrate 3, and the anchoring substrate 41 can be selected from other shapes and structures, which are not specifically limited here.

[0035] In actual construction, the fixing components are first installed on the roof; then the waterproof membrane sheet 2, the substrate 3, the support body 1 and the sealing element 5 are installed together in sequence to form a whole, forming the upper part; then the upper part is directly screwed onto the fixing components 4 by threads to quickly complete the installation of this utility model.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A roof photovoltaic support device having stability, characterized by, The utility model relates to a roof photovoltaic support device with stability, which comprises a support body (1), a waterproof roll piece (2) and a substrate (3). The support body (1) has an upper end provided with an upper interface (11) for connecting a photovoltaic module and a lower end provided with a lower interface (12) for connecting a fixing assembly (4), and the bottom of the support body (1) has an outwardly horizontally extending abutting portion (13). The waterproof roll piece (2) is arranged above the fixing assembly (4) and the substrate (3), and the center of the waterproof roll piece (2) has a first through hole. The substrate (3) is nested below the waterproof roll piece (2), and the substrate (3) comprises a base body portion (31) and a limiting portion (32) protruding upward from the base body portion (31), the upper end surface of the base body portion (31) is connected to the lower end surface of the waterproof roll piece (2), the limiting portion (32) is arranged in the first through hole, the center of the limiting portion (32) has a second through hole, the support body (1) is arranged in the second through hole, and the abutting portion (13) is limited below the limiting portion (32).

2. The roof photovoltaic support device with stability according to claim 1, wherein an annular clamping groove (14) is formed in the circumferential direction of the support body (1), a sealing element (5) is arranged in the clamping groove (14), the clamping groove (14) extends obliquely upward toward the axis of the support body (1), the upper end of the sealing element (5) is clamped in the clamping groove (14), and the lower end of the sealing element (5) extends to the upper surface of the waterproof roll piece (2) and forms an elastic abutment.

3. The roof photovoltaic support device with stability according to claim 2, wherein the bottom of the sealing element (5) has an upwardly protruding avoiding portion (51) to form an avoiding space, and the part of the limiting portion (32) protruding above the upper end surface of the waterproof roll piece (2) is arranged in the avoiding space.

4. The roof photovoltaic support device with stability according to claim 2, wherein the groove body of the clamping groove (14) is composed of a first side wall (141) and a second side wall (142), the second side wall (142) is a segmented inclined structure, and comprises a first inclined section (1421) and a second inclined section (1422) connected in sequence along the groove depth direction.

5. The roof photovoltaic support device with stability according to claim 4, wherein the first inclined section (1421) is located close to the opening end of the clamping groove (14), and the second inclined section is located close to the groove bottom end of the clamping groove (14).

6. The roof photovoltaic support device with stability according to claim 2, wherein the sealing element (5) is arranged in a conical structure, and the sealing element (5) is made of a material with elasticity.

7. The roof photovoltaic support device with stability according to claim 1, wherein the fixing assembly (4) comprises an anchoring base plate (41) and a plurality of self-locking fixing elements (42), the anchoring base plate (41) is arranged below the substrate (3), and the self-locking fixing elements (42) are connected to the roof panel after penetrating through the anchoring base plate (41). ​ ​ ​ ​ ​ ​ 8. The roof photovoltaic support device with stability according to claim 7, characterized in that, a center stud (43) is fixed on the anchoring base plate (41), the threaded end of the center stud (43) is arranged upward, the inner wall of the lower interface (12) is matched with a thread, and the center stud (43) is detachably connected with the lower interface (12) through the thread.

9. The roof photovoltaic support device with stability according to claim 7, characterized in that, the self-locking fixing part (42) can be selected as a self-tapping screw, the self-tapping screw is connected with the roof after penetrating through a through hole formed on the anchoring base plate (41).

10. The roof photovoltaic support device with stability according to claim 7, characterized in that, the area of the waterproof roll sheet (2) is greater than that of the substrate (3), and the outer edge of the waterproof roll sheet (2) extends to the outside of the substrate (3).

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