Assembly type joint with waterproof structure
By designing prefabricated photovoltaic support nodes with waterproof structures, and using detachable connections and waterproof membranes to form a continuous waterproof layer, the leakage problem at the connection between the photovoltaic support nodes and the roof panels is solved, achieving a stable connection and waterproof effect, and improving the safety and durability of the photovoltaic system.
Patent Information
- Application Number
- CN202520166886.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Traditional photovoltaic support nodes are prone to leakage at the connection with the roof panel, which affects the waterproof performance of the building and the normal operation of the photovoltaic system.
Design an assemblable node with a waterproof structure, including a detachably connected lower support column and an upper support column, connected by mounting pin holes and pins, and reinforced with clamp components, forming a continuous waterproof layer by combining the surface layer and the support waterproof membrane, adaptable to roof panels of varying heights and slopes.
It achieves stable connection and efficient support for photovoltaic support nodes, effectively prevents rainwater infiltration, and improves the safety and durability of the photovoltaic system.
Smart Images

Figure CN223928257U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic technology field, concretely relates to a node with waterproof structure of assembly type. BACKGROUND
[0002] In the installation of photovoltaic systems, photovoltaic supports are the key structures that support photovoltaic modules, and their stability and waterproof performance are crucial for the long-term operation of photovoltaic systems. Traditional photovoltaic support nodes are often directly fixed to the roof panels of buildings, but due to differences in the material and installation process of the roof panels, the connection between the photovoltaic support nodes and the roof panels is prone to leakage, affecting the waterproof performance of the building and the normal operation of the photovoltaic system.
[0003] To solve the above problems, a node with waterproof structure of assembly type is needed, which not only can stably support photovoltaic modules, but also can effectively prevent water from seeping into the building from the connection between the photovoltaic support node and the roof panel. SUMMARY
[0004] The utility model provides a node with waterproof structure of assembly type to solve the technical defects pointed out in the background art.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] A node with waterproof structure of assembly type is provided on a roof panel with a pre-buried steel plate, including a support mechanism vertically arranged on the pre-buried steel plate, and a photovoltaic support supported on the upper end of the support mechanism. The support mechanism includes a lower support column and an upper support column that can be detachably connected in an up-down orientation. The lower support column has a base plate at its lower end, which is fixed to the pre-buried steel plate. The upper support column is fixed to the photovoltaic support at its upper end. A waterproof structure is laid between each support mechanism and the roof panel.
[0007] Further, the lower support column has a mounting pin hole vertically recessed at its top end, and the upper support column has a pin column correspondingly arranged at its lower end, which is inserted into the mounting pin hole to form the mounting between the upper support column and the lower support column.
[0008] Further, a hoop assembly is arranged between the lower support column and the upper support column, which includes a left hoop and a right hoop facing each other, and a lower nut and an upper nut fixing the left hoop and the right hoop.
[0009] Furthermore, the lower support column has lower locking blocks evenly spaced on the upper circumference of the lower section, and the upper support column has upper locking blocks evenly spaced on the lower circumference of the upper section. The left and right clamps have corresponding slots on their inward-facing sides. When the left and right clamps are close together, the lower and upper locking blocks are embedded and positioned in the slots. The lower and upper nuts lock the upper and lower ends of the left and right clamps.
[0010] Furthermore, the waterproof structure includes a surface waterproof membrane laid on the roof panel and a support waterproof membrane vertically wrapped around the lower support column and the upper support column. The lower end of the support waterproof membrane extends downward and is laid on the roof panel, forming a waterproof overlap with the surface waterproof membrane.
[0011] Furthermore, the roof panel has a high-low sloping structure, and the surface waterproof membrane is divided into a high-elevation waterproof membrane and a low-elevation waterproof membrane on both sides of the support waterproof membrane. The bottom surface of the high-elevation waterproof membrane overlaps the top surface of the support waterproof membrane to form a high-level overlap, and the top surface of the low-elevation waterproof membrane overlaps the bottom surface of the support waterproof membrane to form a low-level overlap.
[0012] Furthermore, the waterproof membrane is one of the following: bitumen waterproof membrane, polymer-modified bitumen waterproof membrane, or synthetic polymer waterproof membrane.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention provides an assemblable node with a waterproof structure. The node is installed on a roof panel with an embedded steel plate and includes a support mechanism consisting of a detachably connected lower support column and an upper support column, as well as a structure supporting the photovoltaic bracket. The support mechanism is connected via mounting pin holes and pins, and further reinforced by a clamp assembly. The clamp assembly utilizes the cooperation of a lower clamp, an upper clamp, and a groove, and is locked with a nut. The waterproof structure consists of a surface waterproof membrane and a support waterproof membrane, forming a continuous waterproof layer, particularly suitable for roof panels with varying slopes. High and low overlaps ensure waterproofing. This invention not only achieves a stable connection and efficient support for the photovoltaic bracket node, but also effectively prevents rainwater penetration through a refined waterproof structural design, improving the safety and durability of the photovoltaic system. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the clamp assembly of this utility model;
[0018] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure.
[0019] Figure 4 This is a schematic diagram of the waterproof membrane laying method of this utility model. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] like Figures 1-4 As shown, an assemblable node with a waterproof structure is installed on a roof panel 1 with a pre-embedded steel plate 2. It includes a support mechanism vertically installed on the pre-embedded steel plate 2 and a photovoltaic support 5 supported on the upper end of the support mechanism. The support mechanism includes a lower support column 3 and an upper support column 6 that are detachably connected in an upward and downward direction. The lower end of the lower support column 3 is provided with a base steel plate 4, which is fixedly connected to the pre-embedded steel plate 2. The upper end of the upper support column 6 is fixedly connected to the photovoltaic support 5. A waterproof structure is laid between each support mechanism and the roof panel 1.
[0025] The embedded steel plate 2 serves as a fixed foundation, and the lower support column 3 is securely fixed to the roof panel 1 via the base steel plate 4. The upper support column 6 is connected to the lower support column 3, together forming the support structure to support the photovoltaic bracket 5 and the photovoltaic modules. A waterproof structure is laid between the support structure and the roof panel 1, forming an effective waterproof barrier. When rainwater falls on the roof panel 1, the waterproof structure can prevent rainwater from penetrating to the support structure and below the photovoltaic modules, thereby protecting the safety of the entire photovoltaic system.
[0026] The lower support column 3 has a vertically recessed mounting pin hole 7 at its top, and the lower end of the upper support column 6 has a corresponding pin 8. The pin 8 is inserted into the mounting pin hole 7 to form the connection between the upper support column 6 and the lower support column 3. During installation, the lower support column 3 is first fixed to the pre-embedded steel plate 2 via the base steel plate 4 to ensure the stability of the lower support column 3. Next, the pin 8 of the upper support column 6 is aligned with the mounting pin hole 7 of the lower support column 3 and inserted into it. The pin 8 is firmly fixed in the mounting pin hole 7, thereby realizing the connection between the upper support column 6 and the lower support column 3.
[0027] Specifically, as shown in the figure, a clamp assembly 11 is provided between the lower support column 3 and the upper support column 6. The clamp assembly 11 includes a left clamp and a right clamp that clamp towards each other from the left and right, and a lower nut 12 and an upper nut 13 for fixing the left clamp and the right clamp. Lower locking blocks 9 are evenly spaced on the upper circumference of the lower support column 3, and upper locking blocks 10 are evenly spaced on the lower circumference of the upper support column 6. The left clamp and the right clamp have corresponding locking grooves on their inward-facing sides. When the left clamp and the right clamp clamp are close together, the lower locking blocks 9 and the upper locking blocks 10 are embedded and positioned in the locking grooves, and the lower nut 12 and the upper nut 13 lock the upper and lower ends of the left clamp and the right clamp.
[0028] During installation, the lower support column 3 is fixed to the pre-embedded steel plate 2 via the base steel plate 4 to ensure the stability of the lower support column 3. The upper nut 12 and lower nut 13 are inserted into the column, and the pin 8 of the upper support column 6 is aligned with the mounting pin hole 7 of the lower support column 3 and initially inserted. The left and right clamps are brought closer together, aligning their slots with the positions of the lower clamping block 9 and the upper clamping block 10. The lower clamping block 9 and the upper clamping block 10 are then inserted into the slots of the left and right clamps, ensuring a tight fit. By rotating the upper nut 12 and lower nut 13, the left and right clamps are tightly clamped between the lower support column 3 and the upper support column 6, ensuring a secure connection. The connection is checked for stability, ensuring there is no loosening or shaking.
[0029] Specifically, as shown in the figure, the waterproof structure includes a surface waterproof membrane laid on the roof panel 1 and a support waterproof membrane 14 vertically wrapped around the lower support column 3 and the upper support column 6. The lower end of the support waterproof membrane 14 extends downward and is laid on the roof panel 1, forming a waterproof overlap with the surface waterproof membrane. The roof panel 1 has a high-low sloping structure. The surface waterproof membrane is divided into a high-elevation waterproof membrane 15 and a low-elevation waterproof membrane 16 on both sides of the support waterproof membrane 14. The bottom surface of the high-elevation waterproof membrane 15 overlaps vertically with the top surface of the support waterproof membrane 14 to form a high-level overlap 17, and the top surface of the low-elevation waterproof membrane 16 overlaps vertically with the bottom surface of the support waterproof membrane 14 to form a low-elevation overlap 18.
[0030] A surface waterproof membrane is laid on the roof panel 1, forming a continuous waterproof layer to prevent rainwater from directly penetrating the roof panel and entering the building. The support waterproof membrane 14 is vertically wrapped around the support columns, ensuring that the gaps between the support structure and the roof panel are completely sealed. The lower end of the support waterproof membrane 14 overlaps with the surface waterproof membrane, and appropriate sealing treatment (such as sealant) ensures that the overlap is leak-proof. The bottom surface of the high-elevation waterproof membrane 15 overlaps with the top surface of the support waterproof membrane 14 at a high level, forming a high-level overlap 17. Appropriate overlapping and sealing treatment ensures that rainwater at higher elevations will not seep in through the overlap. The top surface of the low-elevation waterproof membrane 16 overlaps with the bottom surface of the support waterproof membrane 14 at a low level, also forming a low-level overlap 18. Similarly, overlapping and sealing treatment prevents rainwater penetration at lower levels. Through the cooperation and overlap of the surface waterproof membrane, the support waterproof membrane 14, and the high and low-elevation waterproof membranes, a continuous waterproof layer is formed, ensuring that the entire photovoltaic support node area is protected from rainwater erosion. The stability and durability of the waterproof structure are enhanced, enabling it to adapt to various climatic conditions and natural environments.
[0031] Specifically, as shown in the figure, the waterproof membrane is one of the following: bitumen waterproof membrane, polymer-modified bitumen waterproof membrane, or synthetic polymer waterproof membrane.
[0032] This invention provides an assemblable node with a waterproof structure. The node is installed on a roof panel with an embedded steel plate and includes a support mechanism consisting of a detachably connected lower support column and an upper support column, as well as a structure supporting the photovoltaic bracket. The support mechanism is connected via mounting pin holes and pins, and further reinforced by a clamp assembly. The clamp assembly utilizes the cooperation of a lower clamp, an upper clamp, and a groove, and is locked with a nut. The waterproof structure consists of a surface waterproof membrane and a support waterproof membrane, forming a continuous waterproof layer, particularly suitable for roof panels with varying slopes. High and low overlaps ensure waterproofing. This invention not only achieves a stable connection and efficient support for the photovoltaic bracket node, but also effectively prevents rainwater penetration through a refined waterproof structural design, improving the safety and durability of the photovoltaic system.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A field-assembled node with a waterproof structure, provided on a roof panel (1) with a pre-embedded steel plate (2), characterized in that, The bracket mechanism is vertically arranged on the embedded steel plate (2), and the bracket mechanism comprises a lower bracket column (3) and an upper bracket column (6) which are detachably connected in an up-down direction, and the lower bracket column (3) is provided with a base steel plate (4) at the lower end, the base steel plate (4) is fixedly connected with the embedded steel plate (2), and the upper bracket column (6) is fixedly connected with the photovoltaic support (5) at the upper end, and a waterproof structure is arranged between each bracket mechanism and the roof panel (1).
2. The node with waterproof structure according to claim 1, characterized in that, The top end of the lower bracket column (3) is vertically and inwardly recessed to form a mounting pin hole (7), the lower end of the upper bracket column (6) is correspondingly provided with a pin column (8), and the pin column (8) is inserted into the mounting pin hole (7) to form the mounting between the upper bracket column (6) and the lower bracket column (3).
3. The node of claim 2, wherein the node is waterproofed. The lower bracket column (3) and the upper bracket column (6) are provided with a hoop assembly (11), and the hoop assembly (11) comprises a left hoop and a right hoop which are oppositely arranged, and a lower nut (12) and an upper nut (13) which are used for fixing the left hoop and the right hoop.
4. The node of claim 3, wherein the waterproof structure comprises a waterproof layer and a waterproof frame. The lower bracket column (3) is uniformly provided with a lower clamping block (9) at the upper segment, the upper bracket column (6) is uniformly provided with an upper clamping block (10) at the lower segment, the left hoop and the right hoop are correspondingly provided with a clamping groove at the opposite inner sides, when the left hoop and the right hoop are close to each other, the lower clamping block (9) and the upper clamping block (10) are embedded and positioned in the clamping groove, and the lower nut (12) and the upper nut (13) lock the upper and lower ends of the left hoop and the right hoop.
5. The node of claim 4, wherein the waterproof structure comprises a waterproof layer and a waterproof frame, the waterproof layer is arranged on the inner surface of the node, and the waterproof frame is arranged on the outer surface of the node. The waterproof structure comprises a surface waterproof coiled material arranged on the roof panel (1) and a bracket waterproof coiled material (14) vertically wrapped on the lower bracket column (3) and the upper bracket column (6), the lower end of the bracket waterproof coiled material (14) extends downward and is arranged on the roof panel (1), and forms a waterproof lap joint with the surface waterproof coiled material.
6. The node of claim 5, wherein the waterproof structure comprises a waterproof layer and a waterproof frame. The roof panel (1) has a high-low inclined structure, the surface waterproof coiled material is divided into a high-elevation waterproof coiled material (15) and a low-elevation waterproof coiled material (16) on both sides of the bracket waterproof coiled material (14), the bottom surface of the high-elevation waterproof coiled material (15) and the top surface of the bracket waterproof coiled material (14) form a high-position lap joint position (17) in an up-down lap joint manner, and the top surface of the low-elevation waterproof coiled material (16) and the bottom surface of the bracket waterproof coiled material (14) form a low-position lap joint position (18) in an up-down lap joint manner.
7. The node of claim 6, wherein the node is waterproofed. The waterproof coiled material is one of an asphalt waterproof coiled material, a polymer modified asphalt waterproof coiled material and a synthetic polymer waterproof coiled material.