Photovoltaic support base with concrete counterweight

Abstract

The utility model discloses a photovoltaic support base with a concrete counterweight. The photovoltaic support base comprises an overhead part, a concrete counterweight layer and a photovoltaic support which are sequentially arranged from bottom to top. The overhead part comprises a plurality of supporting plates, and the supporting plates intersect longitudinally and transversely to form a net frame with a plurality of grids. The concrete balance weight layer comprises a plurality of balance weight plates installed on the top face of the net rack, every two adjacent balance weight plates are mutually spliced and fixed through a connecting piece, and a water permeable channel is formed in the splicing position. A space can be formed between the concrete counterweight layer and the mounting surface of a mounting place, accumulated water is leaked downwards through the water permeable channel, so that the corrosion resistance is improved, the service life is prolonged, and the mounting efficiency can be improved due to the fact that the concrete counterweight layer of the splicing structure does not need to build a template and pour on site.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic equipment installation, and in particular to a photovoltaic support base with concrete counterweight. Background Technology

[0002] Currently, photovoltaic (PV) power generation systems are mainly installed outdoors in open spaces or on building rooftops. They convert sunlight into electricity. A PV system consists of photovoltaic panels and energy storage components. The panels are supported by brackets. Because they are outdoors, they are easily affected by wind. To increase stability and prevent tipping, counterweights are needed on the brackets. Typically, a template is erected at the installation site, and concrete is poured to form a counterweight base. Threaded connecting ribs are embedded in the counterweight base, connecting to the bottom of the bracket and secured with nuts. Since the bottom of the counterweight base is in contact with the installation surface, and the top of the counterweight base is in contact with the bottom of the bracket, rainwater accumulates on the counterweight base during the rainy season and is difficult to drain. Prolonged immersion in water can cause corrosion of the bracket bottom, nuts, and threaded connecting ribs, reducing the rigidity of the bracket bottom and the tightening force between the nuts and threaded connecting ribs, posing a risk of the bracket swaying or collapsing. Utility Model Content

[0003] The purpose of this invention is to provide a photovoltaic support base with concrete counterweight, which can drain water and thus improve corrosion resistance.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A photovoltaic support base with concrete counterweight includes an overhead component, a concrete counterweight layer, and a photovoltaic support arranged sequentially from bottom to top; the overhead component includes several support plates, which intersect to form a grid with multiple meshes; the concrete counterweight layer includes several counterweight plates installed on the top surface of the grid, and adjacent counterweight plates are spliced ​​and fixed together by connectors, forming a water-permeable channel at the splice.

[0006] Based on the above technical solution, the present invention can be improved as follows:

[0007] Furthermore, at least one liquid passage hole is provided on the surface of the support plate, and the liquid passage hole connects two adjacent grids on the grid frame.

[0008] Furthermore, the bottom side of the support plate is provided with a connecting lug for connecting to the mounting surface of the installation site. The connecting lug is perpendicular to the surface of the support plate and has bolt holes.

[0009] Further, a clamping groove is formed on the counterweight plate, and the connecting member is a clamping block. The adjacent two counterweight plates are spliced and fixed through the cooperation of the clamping groove and the clamping block, and the top surface of the spliced counterweight plate is flush with the top surface of the clamping block.

[0010] Further, the clamping block is a clamping block with a "convex" shape structure or a clamping block with a "cross" shape structure. Vertical portions are provided at the ends of the clamping block, and the vertical portions are inserted into the gaps between two adjacent counterweight blocks. An inverted L-shaped fitting portion is provided on the side surface of each vertical portion that is in contact with the counterweight plate, and the inverted L-shaped fitting portion is fitted into the clamping groove; the top surfaces of the horizontal segments of each inverted L-shaped fitting portion are joined together to form the top surface of the clamping block.

[0011] Further, a countersunk through hole penetrating the vertical portion is provided on the clamping block, and a bolt can pass through the countersunk through hole and be threadedly connected to the top of the support plate through the clamping block. A corresponding bolt hole is provided on the top of the support plate so that the top surface of the support plate is in contact with the bottom surface of the counterweight plate.

[0012] Compared with the prior art, the technical solution of the present utility model has the following advantages:

[0013] By providing an overhead member and installing a concrete counterweight layer on the overhead member, a space is formed between the concrete counterweight layer and the installation surface of the installation site. At the same time, the concrete counterweight layer adopts a splicing structure, and a water permeable channel is formed at the splicing position. The accumulated water leaks through the water permeable channel, thereby improving the anti-corrosion performance and extending the service life; moreover, the concrete counterweight layer with a splicing structure does not require on-site formwork erection and pouring, which can improve the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in detail with reference to the drawings and specific embodiments [[ID=第十九]]

[0015] Figure 1 It is the disassembly and assembly drawing of the photovoltaic support base with concrete counterweight in the embodiment;

[0016] Figure 2 It is the structural schematic diagram of the photovoltaic support base with concrete counterweight in the embodiment;

[0017] Figure 3 It is the structural schematic diagram of the clamping block with a "convex" shape structure in the embodiment;

[0018] Figure 4 It is the structural schematic diagram of the clamping block with a "cross" shape structure in the embodiment.

[0019] Marks in the drawings: 1 - support plate, 2 - connecting ear, 3 - liquid through hole, 4 - counterweight plate, 5 - water permeable channel, 6 - clamping groove, 7 - clamping block, 7a - vertical portion, 7b - inverted L-shaped fitting portion, 7c - countersunk through hole, 8 - photovoltaic support. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These descriptions are intended to aid in understanding the utility model but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] See Figures 1 to 4 The embodiment relates to a photovoltaic support base with concrete counterweight, including an overhead component, a concrete counterweight layer and a photovoltaic support 8 arranged sequentially from bottom to top; the concrete counterweight layer has a water-permeable channel 5, which is used to drain water accumulated on the concrete counterweight layer to prevent water accumulation from corroding the photovoltaic support 8; the overhead component is used to form a space between the concrete counterweight layer and the installation surface of the installation site to accommodate the drained water.

[0022] Specifically, the overhead component includes several elongated support plates 1. The support plates 1 intersect longitudinally and transversely to form a grid with multiple meshes. The grid can evenly distribute the force to stably support the concrete counterweight layer. The number of support plates 1 can be increased or decreased according to the actual installation site. Connecting ears 2 are provided on the bottom side of the support plate 1. The connecting ears 2 are perpendicular to the surface of the support plate 1. The support plate 1 is connected to the installation surface of the installation site through the connecting ears 2 and is fixed by bolts. The connecting ears 2 are provided with corresponding bolt holes. In this embodiment, connecting ears 2 are provided on both sides of the support plate 1 to form a fixing force on both sides of the support plate 1 and increase the installation stability of the support plate 1.

[0023] At least one liquid passage hole 3 is provided on the surface of the support plate 1, and the liquid passage hole 3 connects two adjacent grids on the grid; the water that leaks down is contained in the grid, and the water can flow between each grid through the liquid passage hole 3 so as to distribute the water evenly in each grid; a drainage pipe network is pre-embedded at the installation site to drain the water in the grid through the drainage pipe network.

[0024] The concrete counterweight layer includes several counterweight plates 4, which are installed on the top surface of the grid frame. Adjacent counterweight plates 4 are spliced ​​and fixed together by connectors, and gaps are formed at the splices as water permeable channels 5. The counterweight plates 4 are made of precast concrete, which eliminates the need for on-site formwork and pouring, making installation convenient and improving installation efficiency. Moreover, the counterweight blocks can be stacked, which can reduce space occupation and facilitate transportation.

[0025] The counterweight plate 4 is a rectangular plate with a slot 6 at the top corner. The connector is a block 7. The slot 6 and the block 7 cooperate with each other to fix two adjacent counterweight plates 4 together, and make the top surface of the counterweight plate 4 after splicing flush with the top surface of the block 7 to form a flat connection surface for installing the photovoltaic bracket 8.

[0026] In this embodiment, the locking block 7 is either a "convex" shaped locking block 7 or a "cross" shaped locking block 7. The convex locking block 7 is used to connect the counterweight plate 4 installed on the side of the space frame, and the cross-shaped locking block 7 is used to connect the counterweight plate 4 installed in the middle of the space frame. Each end of the locking block 7 is provided with a vertical part 7a, which is inserted into the gap between two adjacent counterweight blocks. Each vertical part 7a has an inverted L-shaped fitting part 7b on the side that is in contact with the counterweight plate 4. The inverted L-shaped fitting part 7b is fitted into the locking groove 6. The top surface of the horizontal section of each inverted L-shaped fitting part 7b is connected as a whole to form the top surface of the locking block 7. The vertical section of the inverted L-shaped fitting part 7b extends downward to 1 / 2 to 2 / 3 of the height of the vertical part 7a.

[0027] The locking block 7 is provided with a countersunk through hole 7c that penetrates the vertical part 7a. The bolt can be inserted through the countersunk through hole 7c and threaded to the top of the support plate 1. The top of the support plate 1 is provided with corresponding bolt holes so that the top surface of the support plate 1 fits against the bottom surface of the counterweight plate 4, thereby fixing the counterweight plate 4 on the support plate 1.

[0028] It should be noted that the connector in this embodiment is the card block 7. Other structural connectors can be used instead, depending on the technical requirements, so that the top surface of the assembled counterweight plate 4 is flush with the top surface of the card block 7, and a gap is formed between two adjacent counterweight plates 4 at the splicing point.

[0029] The photovoltaic support 8 is a frame with a right-angled triangular cross section, which is composed of multiple rods connected to each other. The photovoltaic panel is installed on the photovoltaic support 8 and forms an angle with the horizontal plane, with the angle ranging from 30° to 60°. In this embodiment, the angle is 30°.

[0030] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A concrete ballasted photovoltaic racking base, characterized by, The utility model provides a photovoltaic power generation system, including overhead parts, concrete counterweight layer and photovoltaic support which are sequentially arranged from bottom to top, the overhead parts include a plurality of support plates, the support plate is crossed and forms the net rack with a plurality of grids, the concrete counterweight layer includes a plurality of counterweight plates installed on the top surface of the net rack, two adjacent counterweight plates are mutually spliced and fixed through connecting piece, and the water-permeable channel is formed at the splicing place.

2. The concrete ballasted photovoltaic rack foundation of claim 1, wherein, At least one liquid passage hole is arranged on the plate surface of the support plate, and the liquid passage hole is communicated with two adjacent grids on the net rack.

3. The concrete ballasted photovoltaic rack foundation of claim 1, wherein, A connecting lug for connecting the installation site is arranged on the bottom side of the plate surface of the support plate, and the connecting lug is perpendicular to the plate surface of the support plate and is provided with a bolt hole.

4. The concrete ballasted photovoltaic rack foundation of claim 1, wherein, The counterweight plate is provided with a clamping groove, the connecting piece is a clamping block, the clamping groove and the clamping block are mutually matched to splice and fix two adjacent counterweight plates, and the top surface of the spliced counterweight plate is flush with the top surface of the clamping block.

5. The concrete ballasted photovoltaic rack mount of claim 4, wherein, The clamping block is a "convex" shaped clamping block or a "cross" shaped clamping block, each end of the clamping block is provided with a vertical part, the vertical part is inserted into the gap between two adjacent counterweight blocks, each vertical part is provided with an inverted L-shaped fitting part on the side surface abutting the counterweight plate, and the inverted L-shaped fitting part is fitted into the clamping groove; the top surface of the horizontal section of each inverted L-shaped fitting part is integrated as the top surface of the clamping block.

6. The concrete ballasted photovoltaic rack mount of claim 5, wherein, The clamping block is provided with a countersunk through hole penetrating through the vertical part, a bolt can be inserted through the countersunk through hole to threadedly connect the clamping block and the top of the support plate, the top of the support plate is provided with a corresponding bolt hole, so that the top surface of the support plate abuts the bottom surface of the counterweight plate.

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