A photovoltaic module pile
The design of guide blocks and adjusting screws solves the problem of bolt hole alignment in photovoltaic pile foundations, improves installation and binding efficiency, enhances structural stability, and extends service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWER CHINA KUNMING ENG CORP LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-07
Smart Images

Figure CN224468359U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of photovoltaic pile foundations, specifically relating to a photovoltaic module pile foundation. Background Technology
[0002] With the rapid development of renewable energy technologies, photovoltaic (PV) power generation systems are widely used due to their clean and sustainable characteristics. As the core component of the system, PV modules typically need to be fixed to the ground, roof, or water surface by a supporting structure. Among these, the pile foundation structure is a key supporting component of ground-mounted PV power plants, directly affecting the system's stability, wind load resistance, and service life.
[0003] Currently, the mainstream photovoltaic (PV) foundation uses cast-in-place concrete as a base, upon which PV modules are then installed. However, there are inherent errors in the cutting and manufacturing of the modules, and bolt holes are difficult to align during bolt installation, resulting in relatively low installation efficiency. Furthermore, the reinforcement binding primarily uses ring-shaped stirrups, which also leads to relatively low construction efficiency. Utility Model Content
[0004] To address the problems existing in the background technology, the photovoltaic module pile foundation proposed in this utility model can limit and adjust the relative position between the modules, ensuring that the bolt holes can be aligned, thereby improving installation efficiency. Furthermore, while ensuring sufficient strength in the cast-in-place portion, the spiral binding of the reinforcing bars can improve binding efficiency to a certain extent.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a photovoltaic module pile foundation, including a foundation steel reinforcement frame for pouring concrete. The foundation steel reinforcement frame is composed of main reinforcement bars, spiral reinforcement bars, and ring reinforcement bars tied together. The main reinforcement bars are arranged longitudinally, with the middle part of the main reinforcement bars used to tie the spiral reinforcement bars and the two ends used to tie the ring reinforcement bars. A lower column is pre-embedded inside the foundation steel reinforcement frame. The other end of the lower column has a longitudinally extending notch. A boss is fixedly connected to the side wall near the notch, and the boss is threadedly connected to an adjusting screw. An upper column is sleeved on the lower column. A guide block is fixedly connected to the upper column. The guide block is slidably connected to the notch of the lower column. The upper column and the lower column also have corresponding bolt holes. The end of the adjusting screw of the lower column can contact the guide block, driving the upper column to slide longitudinally relative to each other, so that the bolt holes of the upper column and the lower column are aligned.
[0006] The top of the main reinforcement bar is bent into the foundation steel frame, and the bent end is tied with a square bar to form a pre-embedded hole. The bottom end of the lower column can pass through the pre-embedded hole and be placed inside the foundation steel frame.
[0007] The foundation steel reinforcement frame is a columnar structure with a diameter of 300mm and a length of 2100mm. After the concrete is poured, the concrete pier is 500mm to 800mm above the ground.
[0008] The pre-embedded depth of the lower column is 500mm.
[0009] The beneficial effects of this utility model are:
[0010] Compared with existing technologies, this invention can limit the relative position between the upper and lower columns through notches and guide blocks, thereby enhancing the stability and accuracy of the upper and lower columns' fitting installation. Simultaneously, the relative position between the upper and lower columns can be adjusted by adjusting the screws, ensuring that their bolt holes can be aligned, thus improving installation efficiency. Furthermore, while ensuring sufficient strength in the cast-in-place portion, the middle section of the foundation reinforcement frame uses a spiral binding method for the reinforcing bars, which can improve binding efficiency to a certain extent. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of the pile foundation in the embodiment;
[0012] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;
[0013] Figure 3 This is a front view of a partial photovoltaic module pile in the embodiment.
[0014] Explanation of reference numerals in the attached drawings: 1-Foundation steel reinforcement frame, 101-Circular reinforcement, 102-Helical reinforcement, 103-Main reinforcement, 104-Square reinforcement, 2-Lower column, 201-Notch, 202-Boss, 3-Upper column, 301-Guide block, 4-Screw, 5-Stud, 6-Adjusting screw. Detailed Implementation
[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.
[0016] In the attached diagram, direction 'a' represents the vertical upward direction, and the directions described below will refer to this.
[0017] Example 1
[0018] See Figures 1 to 3The photovoltaic module pile foundation shown includes a foundation steel reinforcement frame 1 for pouring concrete. The foundation steel reinforcement frame 1 is composed of main reinforcement bars 103, spiral reinforcement bars 102, and ring reinforcement bars 101 bound together in a columnar structure with a diameter of 300 mm and a length of 2100 mm. The main reinforcement bars 103 are arranged longitudinally, with the spiral reinforcement bars 102 bound in the middle and the ring reinforcement bars 101 bound at both ends. In one embodiment, the top of the main reinforcement bars 103 is bent inwards towards the foundation steel reinforcement frame 1, and a square reinforcement bar 104 is bound to the bent end to form a pre-embedded hole. The bottom end of the lower column 2, described below, can pass through the pre-embedded hole and be placed inside the foundation steel reinforcement frame 1. In another embodiment, the top of the main reinforcement bars 103 is bent back into a hook shape to improve the strength of the concrete after pouring.
[0019] The lower end of the lower column 2 is pre-embedded inside the foundation steel frame 1. After the concrete is poured, the pre-embedded depth of the lower column 2 is 500mm. The upper end of the lower column 2 is provided with a longitudinally extending notch 201. A boss 202 is fixedly connected (i.e. welded) to the outer wall of the lower column 2 near the notch 201. An adjusting screw 6 is threadedly connected to the boss 202, and the end of the adjusting screw 6 is installed facing upward.
[0020] An upper column 3 is fitted onto the lower column 2. The upper end of the upper column 3 is used to install photovoltaic panels and their components, and the lower end is fixedly connected to a guide block 301, i.e., the guide block 301 is welded on. The guide block 301 is slidably connected to the notch 201 of the lower column 2. The upper column 3 and the lower column 2 also have corresponding bolt holes. The upper column 3 and the lower column 2 are made of square steel, and each side of the square steel has two corresponding bolt holes for screwing in screws 4 to fix the upper column 3 and the lower column 2. In addition, they have at least one corresponding bolt hole on each side for inserting studs 5, and nuts are screwed into both ends of the studs 5 for fixation. This arrangement can further enhance the stability of the connection between the upper column 3 and the lower column 2 and avoid the decrease in stability caused by long-term wind exposure. The end of the adjusting screw 6 of the lower column 2 can contact the guide block 301, driving the upper column 3 to slide longitudinally relative to it, so that the bolt holes of the upper column 3 and the lower column 2 are aligned.
[0021] The photovoltaic module pile foundation can use notches 201 and guide blocks 301 to limit the relative position between the upper column 3 and the lower column 2, thereby enhancing the stability and accuracy of the installation of the upper column 3 and the lower column 2. Simultaneously, the relative position between the upper column 3 and the lower column 2 can be adjusted using adjusting screws 6 to ensure that their bolt holes can be aligned, thus improving installation efficiency. Furthermore, while ensuring sufficient strength in the poured portion, the middle section of the foundation steel reinforcement frame 1 is tied with reinforcing bars in a spiral manner, which can improve tying efficiency to a certain extent. Alternatively, the reinforcement can be uniformly tied into complete foundation steel reinforcement frames 1 using equipment before being transported to the project site for pouring construction.
[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A photovoltaic module pile foundation, characterized in that, The foundation includes a steel reinforcement frame (1) for pouring concrete. The foundation steel reinforcement frame (1) is made of main bars (103), spiral bars (102), and ring bars (101) tied together. The main bars (103) are arranged longitudinally. The middle part of the main bars (103) is used to tie the spiral bars (102), and the two ends are used to tie the ring bars (101). The foundation steel reinforcement frame (1) has a pre-embedded lower column (2). The other end of the lower column (2) is provided with a longitudinally extending notch (201). A boss (202) is fixedly connected to the side wall near the notch (201). (202) An adjusting screw (6) is threadedly connected; an upper column (3) is also sleeved on the lower column (2), and a guide block (301) is fixedly connected to the upper column (3). The guide block (301) is slidably connected to the notch (201) of the lower column (2). The upper column (3) and the lower column (2) are also provided with corresponding bolt holes; the end of the adjusting screw (6) of the lower column (2) can contact the guide block (301) to drive the upper column (3) to slide longitudinally relative to each other, so that the bolt holes of the upper column (3) and the lower column (2) are aligned.
2. The photovoltaic module pile foundation according to claim 1, characterized in that, The top of the main reinforcement (103) bends into the foundation steel frame (1), and the bent end is tied with a square reinforcement (104) to form a pre-embedded hole. The bottom end of the lower column (2) can pass through the pre-embedded hole and be placed inside the foundation steel frame (1).
3. The photovoltaic module pile foundation according to claim 2, characterized in that, The foundation steel frame (1) is a columnar structure with a diameter of 300mm and a length of 2100mm. After the concrete is poured, the concrete pier is 500mm~800mm above the ground.
4. The photovoltaic module pile foundation according to claim 3, characterized in that, The lower column (2) is embedded at a depth of 500mm.