Self-waterproof photovoltaic support base

Abstract

The utility model belongs to the technical field of auxiliary support of photovoltaic equipment, and relates to a self-waterproof photovoltaic support base, which comprises a mounting bottom plate, a support mounting part and a plurality of lower anchoring parts, the support mounting part is fixedly mounted on the upper surface of the mounting bottom plate, the lower anchoring parts are fixedly mounted on the lower surface of the mounting bottom plate, and a waterproof roll is covered on the mounting bottom plate. The lower anchoring parts are fixedly installed on the original roof through a third adhesive, and the support installation part and the lower anchoring parts are distributed in a cross shape. Through bonding and anchoring of the lower anchoring part and the third adhesive, concentrated load caused by a balancing weight is avoided, the low bearing characteristic of an ALC plate roof is adapted, load is dispersed through cross-shaped arrangement, horizontal and vertical load is evenly dispersed to a roof structure, prefabrication and on-site installation are facilitated through modular design, positioning errors and construction complexity are reduced, and construction efficiency is improved. And the first adhesive, the second adhesive and the third adhesive play a role in bonding and anchoring and also play a role in chemical bonding and sealing, so that a water vapor invasion path is further blocked.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary support technology for photovoltaic equipment, and in particular to a self-waterproof photovoltaic support base. Background Technology

[0002] In recent years, with the development of solar power generation, more and more unused rooftops have been developed and utilized to install photovoltaic modules. Among them, ALC roofing panels are widely used in industrial and civil buildings due to their light weight and good thermal insulation performance.

[0003] Currently, photovoltaic supports are mostly fixed on concrete flat roofs using concrete counterweights. If the counterweights are not large enough, the supports may overturn or be blown over under wind loads, leading to safety accidents.

[0004] However, due to the material properties of ALC panels, they cannot bear excessive roof loads. Therefore, photovoltaic brackets with counterweight blocks cannot be used on ALC panel roofs. Directly drilling expansion bolts or using chemical anchors to fix the brackets on ALC panel roofs would damage the original waterproof layer of the roof, leaving the potential for roof leaks. Utility Model Content

[0005] To address the technical problem of unstable photovoltaic brackets on existing ALC roofs, this invention provides a self-waterproof photovoltaic bracket base.

[0006] The technical solution of this utility model is achieved through the following scheme: a self-waterproof photovoltaic bracket base, including a mounting base plate, a bracket mounting component and lower anchors. The bracket mounting component is fixedly installed on the upper surface of the mounting base plate, and a plurality of lower anchors are fixedly installed on the lower surface of the mounting base plate. The mounting base plate is covered with a waterproof membrane, and the plurality of lower anchors are fixedly installed on the original roof by a third adhesive. The bracket mounting component and the plurality of lower anchors are arranged in a cross shape.

[0007] Preferably, the waterproof membrane is fixedly installed on the mounting base plate using a second adhesive.

[0008] Preferably, the bracket mounting component includes several reserved bolt rods and several steel pads. The reserved bolt rods are equipped with steel pads, the reserved bolt rods are welded to the upper surface of the mounting base plate, the reserved bolt rods penetrate the waterproof membrane, and the steel pads abut against the waterproof membrane.

[0009] Preferably, a waterproof membrane is sandwiched between the steel pad and the mounting base plate. The bottom surface of the steel pad is connected to the waterproof membrane by a first adhesive. The lower surface of the steel pad has several grooves, and the upper surface of the mounting base plate has several protrusions that abut against the grooves.

[0010] Preferably, the reserved bolt rods and the lower anchors are arranged in a cross-shaped vertical arrangement.

[0011] Preferably, the non-adhesive portion of the waterproof membrane is thermally fused to the original roof waterproof layer.

[0012] In summary, this utility model has the following beneficial effects:

[0013] 1. This utility model avoids concentrated loads from counterweights by bonding and anchoring the lower anchor with the third adhesive. It is suitable for the low load-bearing characteristics of ALC roof panels. The cross-shaped arrangement disperses the load, reducing single-point stress. Horizontal and vertical loads are evenly distributed to the roof structure. The modular design facilitates prefabrication and on-site installation, reducing positioning errors and construction complexity. The first, second, and third adhesives not only provide bonding and anchoring but also chemical bonding and sealing, further blocking the path of moisture intrusion.

[0014] 2. By constructing a composite structure consisting of a steel pad, a first adhesive, a waterproof membrane, a second adhesive, and an installation base plate, gaps and pores in the waterproof membrane are completely eliminated, preventing moisture intrusion.

[0015] 3. The steel pad increases the contact area between the bolt rod and the waterproof membrane, dispersing the compressive stress of the bolt rod on the waterproof membrane and preventing damage to the membrane. The steel pad is bonded to the waterproof membrane with the first adhesive, forming a secondary waterproof seal to prevent moisture from seeping in from the gap between the bolt rod and the membrane.

[0016] 4. The waterproof membrane is heat-fused to the original roof waterproof layer to eliminate the risk of water seepage at the joint and maintain the integrity of the roof waterproofing. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the assembly of this utility model with the original roof;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 This is a top-view three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the main view sectional structure of this utility model;

[0021] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point A;

[0022] Figure 6 This is a top-view cross-sectional view of the structure of this utility model after removing the waterproof membrane adhered to the mounting base plate.

[0023] Explanation of reference numerals in the attached drawings: 1. Mounting base plate; 2. Bracket mounting component; 21. Reserved bolt rod; 22. Steel pad; 3. Lower anchor; 4. First adhesive; 5. Waterproof membrane; 6. Original roof; 7. Second adhesive; 8. Third adhesive. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] A self-waterproof photovoltaic support base, such as Figures 1-6 As shown, the system includes a mounting base plate 1, bracket mounting components 2, and lower anchors 3. The bracket mounting components 2 are fixedly installed on the upper surface of the mounting base plate 1, and several lower anchors 3 are fixedly installed on the lower surface of the mounting base plate 1. A waterproof membrane 5 covers the mounting base plate 1. The lower anchors 3 are fixed to the original roof 6 using a third adhesive 8. The bracket mounting components 2 and the lower anchors 3 are arranged in a cross shape, one above and one below, located on two sides of the mounting base plate 1. This cross-shaped distribution improves load-bearing capacity and distributes stress. The waterproof membrane 5 is fixed using a second adhesive 7. Installed on the mounting base plate 1, the first adhesive 4 and the second adhesive 7 are both structural adhesives, and the third adhesive 8 is a rebar anchoring adhesive. The part of the waterproof membrane 5 covering the mounting base plate 1 is coated with the second adhesive 7 to make the waterproof membrane 5 firmly connected to the mounting base plate 1. The non-adhesive part of the waterproof membrane 5 is heat-fused to the original roof waterproof layer 6, that is, the part where the waterproof membrane 5 and the original roof waterproof layer 6 meet is heat-fused together with the original roof waterproof layer 6, ensuring that no water vapor can enter at the opening. The lower anchor 3 is an anchor bar, and the mounting base plate 1 is preferably made of steel plate.

[0027] The bracket base is integrated with the original roof structure 6 through the lower anchor 3 inserted into the hole 6 of the original roof and the overflowing anchoring adhesive in the hole, so that the load of the photovoltaic bracket can be safely transferred to the original roof structure for distribution. The opening is filled with anchor bars and anchoring adhesive, leaving no gaps and preventing water vapor from entering.

[0028] The individual support base is lightweight, resulting in minimal additional load on the original roof 6. The built-in waterproof membrane 5 and structural measures ensure that the waterproofing of the original roof 6 is not affected. Its low additional load and good waterproofing effect make it better suited for ALC roof photovoltaic development.

[0029] The bracket mounting component 2 includes several reserved bolt rods 21 and several steel pads 22. The reserved bolt rods 21 are equipped with steel pads 22. The reserved bolt rods 21 are welded to the upper surface of the mounting base plate 1. The reserved bolt rods 21 penetrate the waterproof membrane 5. The steel pads 22 abut against the waterproof membrane 5. The reserved bolt rods 21 are used to connect with the base of the photovoltaic bracket to be installed later, so that the load of the photovoltaic bracket can be transferred to the base steel plate. The steel pads 22 are fitted on the reserved bolt rods 21. The number of steel pads 22 is the same as the number of reserved bolt rods 21.

[0030] A waterproof membrane 5 is sandwiched between the steel pad 22 and the mounting base plate 1. The bottom surface of the steel pad 22 is connected to the waterproof membrane 5 through the first adhesive 4. Structural adhesive is applied to the bottom of the steel pad 22. The base of the photovoltaic bracket is then installed and pressed down to ensure that the openings of the waterproof membrane 5 (the through holes for the pre-reserved bolt rods 21) are completely sealed. Several grooves are formed on the lower surface of the steel pad 22, and several protrusions are formed on the upper surface of the mounting base plate 1. The protrusions abut against the grooves. The protrusions on the upper surface of the mounting base plate 1 correspond one-to-one with the grooves of the steel pad 22. The insertion and abutment of the grooves and protrusions restrict the relative movement of the steel pad 22 and the mounting base plate 1 in the horizontal and vertical directions, thereby enhancing the connection stability between the two. The contact surface between the grooves and protrusions generates a large frictional force, and the part of the waterproof membrane 5 located on the protrusion extends into the groove along with the protrusion, providing a more stable base surface for the bonding of the waterproof membrane 5 and increasing the bonding stability of the waterproof membrane 5.

[0031] like Figure 5 As shown, the steel pad 22, the first adhesive 4, the waterproof membrane 5, the second adhesive 7, and the mounting base plate 1 are stacked sequentially from top to bottom to provide all-round sealing and waterproofing.

[0032] The mounting base plate 1 has mounting holes that match the lower anchor 3. The lower anchor 3 is located in the mounting holes and welded to the mounting base plate 1. The mounting base plate 1 also has holes that match the reserved bolt rod 21. The reserved bolt rod 21 is located in the holes. Both the lower anchor 3 and the reserved bolt rod 21 are plug welded.

[0033] If the reserved bolt rod 21 and several lower anchors 3 are arranged in a cross shape, the number of reserved bolt rods 21 and lower anchors 3 is preferably two. The bracket mounting part 2 (upper surface) and the lower anchors 3 (lower surface) are arranged in a cross shape on both sides of the mounting base plate 1 to form a three-dimensional support structure with the upper support and the lower anchor fixed. This ensures the symmetry of the load transfer path and avoids structural skewing or local stress concentration caused by unilateral force. The two restrain each other when under force. When the reserved bolt rod 21 on one side is under tension, the anchor bar on the other side can provide reverse restraint through the mounting base plate 1 to enhance the overall resistance to deformation.

[0034] Working principle: During on-site construction, the positioning of the lower anchor 3 is accurately laid out, and the protective layer on top of the original roof waterproof layer 6 within the range of the bracket base is cleaned to expose the original roof waterproof layer 6.

[0035] Further drill holes with a rotary drill bit and clean them thoroughly. After filling the holes with anchoring adhesive, insert the lower anchor 3.

[0036] The waterproof membrane 5 on the top of the base is heat-fused together with the waterproof layer of the original roof 6. After the anchoring adhesive has solidified, the photovoltaic bracket can be installed on the reserved bolt rod 21 on the top of the base.

[0037] It should be noted that a pull-out test must be conducted on the base before large-scale construction, and construction can only proceed after the project requirements are met; the mounting base plate 1 of the support base has multiple lower anchors 3 and multiple reserved bolt rods 21 prefabricated in the factory, and the steel pads 22 that are compatible with the reserved bolt rods 21 are also prefabricated.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A self-waterproof photovoltaic support base, characterized in that: The system includes a mounting base plate (1), a bracket mounting component (2), and lower anchors (3). The bracket mounting component (2) is fixedly installed on the upper surface of the mounting base plate (1), and several lower anchors (3) are fixedly installed on the lower surface of the mounting base plate (1). The mounting base plate (1) is covered with a waterproof membrane (5), and several lower anchors (3) are fixedly installed on the original roof (6) by a third adhesive (8). The bracket mounting component (2) and several lower anchors (3) are arranged in a cross shape.

2. The self-waterproof photovoltaic support base according to claim 1, characterized in that: The waterproof membrane (5) is fixedly installed on the mounting base plate (1) by the second adhesive (7).

3. The self-waterproof photovoltaic support base according to claim 2, characterized in that: The bracket mounting component (2) includes several reserved bolt rods (21) and several steel pads (22). The reserved bolt rods (21) are equipped with steel pads (22). The reserved bolt rods (21) are welded to the upper surface of the mounting base plate (1). The reserved bolt rods (21) penetrate the waterproof membrane (5). The steel pads (22) abut against the waterproof membrane (5).

4. The self-waterproof photovoltaic support base according to claim 3, characterized in that: A waterproof membrane (5) is sandwiched between the steel pad (22) and the mounting base plate (1). The bottom surface of the steel pad (22) is connected to the waterproof membrane (5) by a first adhesive (4). The lower surface of the steel pad (22) has several grooves, and the upper surface of the mounting base plate (1) has several protrusions. The protrusions abut against the grooves.

5. The self-waterproof photovoltaic support base according to claim 3, characterized in that: Several of the reserved bolt rods (21) and several of the lower anchors (3) are arranged in a cross-shaped vertical arrangement.

6. The self-waterproof photovoltaic support base according to claim 2, characterized in that: The non-adhesive portion of the waterproof membrane (5) is heat-fused to the original roof waterproof layer (6).

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