A photovoltaic racking foundation
By introducing stabilizing and supporting components into the photovoltaic support foundation, a multi-point support structure is formed, which solves the problems of single tension and overturning of the photovoltaic support foundation and enhances the stability of the column.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWER CHINA KUNMING ENG CORP LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
AI Technical Summary
When existing photovoltaic support foundations are fixed with cables and ground nails, the tension is concentrated and the stress is concentrated, making them prone to overturning.
The system employs stabilizing and supporting components, including multiple sets of stabilizing elements, positioning elements, reinforcement elements, and supporting elements, to form a stable triangular support structure. Multi-point support and tension are provided through stabilizing ground stakes, tension cables, and support rods to enhance the stability of the column.
It improves the stability of the photovoltaic support foundation, prevents overturning, enhances the fixing effect of the columns, and adapts to wind erosion.
Smart Images

Figure CN224495191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic module construction technology, specifically to a photovoltaic support foundation. Background Technology
[0002] The photovoltaic support foundation is the supporting foundation for the entire photovoltaic system. Common photovoltaic support foundations include micro-hole cast-in-place piles, small-diameter PHC piles, spiral steel pipe piles, and cast-in-place concrete foundations. The stability of the photovoltaic support foundation determines the stability of the entire photovoltaic system.
[0003] Utility model patent CN221167897U discloses a photovoltaic support foundation, including a cup-shaped base, a column, and several cable assemblies. The cup-shaped base is fixedly set on the ground, and the bottom end of the column is inserted into the cup-shaped base. Fine aggregate concrete is filled between the bottom end of the column and the cup-shaped base. Several cable assemblies are spaced apart around the circumference of the column. Each cable assembly includes a first steel cable, a tensioning device, and a second steel cable. One end of the first steel cable is set on the outer wall of the column, and the other end is connected to the second steel cable through the tensioning device. The end of the second steel cable away from the tensioning device is connected to a ground nail for fixing in the ground. The column is fixed to the cup-shaped foundation with fine stone concrete and secured by a first steel cable, a tensioning device, a second steel cable, and ground nails. This ensures the column is reliably installed on the cup-shaped foundation, resulting in fast on-site construction, short cycle, high construction quality, structural safety and reliability, and time savings. Furthermore, the foundation can be factory-produced and installed on-site, making it low-cost and economical. However, in this patent, the column is connected to the ground via ground nails to stabilize it. But after the photovoltaic modules are installed, they are subjected to wind force. Since the column is only connected to the ground nails by a single cable, the photovoltaic support foundation experiences concentrated tension and is prone to overturning. Utility Model Content
[0004] The main purpose of this utility model is to provide a photovoltaic support foundation to solve the problem that when existing photovoltaic support foundations are fixed in position by cables and ground nails, the tension of the photovoltaic support foundation is singular and the force is concentrated, which makes it easy to overturn.
[0005] To achieve the above objectives, this utility model provides a photovoltaic support foundation, comprising:
[0006] The stabilizing component includes multiple sets of stabilizing members inserted into the ground and positioning members set at the lower end of the column; the stabilizing members are provided with multiple sets of tensioning members connected to the column, and the stabilizing members are provided with reinforcement members between them;
[0007] The support assembly includes a support member disposed between the reinforcement member and the column; the support member, the reinforcement member, and the column form a stable triangular support.
[0008] As a further improvement of this utility model, the stabilizing component includes a stabilizing ground nail; the stabilizing ground nail is provided with a connector.
[0009] As a further improvement of this utility model, the traction component includes a traction hoop set on the column and a traction cable connected to the connector; the traction hoop is provided with a traction ear; the traction cable is provided with a tightening hook, and the traction cable is connected to the traction ear.
[0010] As a further improvement of this utility model, the positioning component includes a positioning seat and a positioning rod disposed on the positioning seat; the positioning rod is inserted into the ground; the positioning seat is provided with a locking component; the column is inserted into the positioning seat; the locking component moves toward the center of the positioning seat under the action of external force and then abuts against the column.
[0011] As a further improvement of this utility model, the reinforcement component includes a reinforcement plate detachably connected to a stable ground nail and a connecting plate disposed on the reinforcement plate; the reinforcement plate is disposed along the circumference of the column; the connecting plate is detachably connected to a positioning seat.
[0012] As a further improvement of this utility model, the reinforcing plate is provided with an adjusting column; an adjusting plate is rotatably provided on the adjusting column; and a locking element is provided between the adjusting plate and the adjusting column.
[0013] As a further improvement of this utility model, the support member includes a support hoop set on the column and a support rod detachably connected to the support hoop; the support hoop is located below the tension hoop; the support rod is detachably connected to the connecting plate.
[0014] The beneficial effects of this utility model are reflected in:
[0015] The positioning rods and positioning seats provide a supporting foundation for the column, and stable ground nails are installed around the column and inserted into the rocky ground. The stable ground nails are connected to each other as a whole by a reinforcing plate. The reinforcing plate is connected to the positioning seat by a connecting plate to enhance the stability of the positioning seat. The reinforcing plate is connected to the column by a tension cable and a support rod, thereby providing tensile force and support force to the column and ensuring its stability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic support foundation according to the present invention;
[0017] Figure 2 This is a schematic diagram of the installation structure of the adjustment plate of a photovoltaic support foundation according to the present invention;
[0018] Figure 3 This is a schematic diagram of the connection structure between the positioning component and the column of a photovoltaic support foundation according to this utility model;
[0019] Figure 4This is a schematic diagram of a reinforcement structure for a photovoltaic support foundation according to the present invention;
[0020] Figure 5 This is a schematic diagram of the adjustable plate structure of a photovoltaic support foundation according to the present invention;
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Post; 2. Stabilizer; 201. Stabilizing stake; 202. Connector; 3. Positioning component; 301. Positioning seat; 302. Positioning rod; 4. Pulling component; 401. Pulling hoop; 402. Pulling cable; 5. Reinforcing component; 501. Reinforcing plate; 502. Connecting plate; 6. Support component; 601. Support hoop; 602. Support rod; 7. Pulling lug; 8. Tightening hook; 9. Locking plate; 10. Locking bolt; 11. Retractor 12. Tightening sleeve; 13. Connecting ring; 14. Locking screw; 15. Mounting cavity; 16. Screw hole; 17. Reinforcing hole; 18. Stabilizing nut; 19. Connecting screw; 20. Connecting lug; 21. Adjusting post; 22. Adjusting plate; 23. Locking element; 24. Adjusting hole; 25. First locking hole; 26. Second locking hole; 27. Third locking hole; 28. Locking stud; 29. Locking nut; 30. Connecting block; 21. Connecting stud. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0024] In one embodiment, see Figure 1 The present invention relates to a photovoltaic support foundation, comprising a column 1, a stabilizing component, and a supporting component.
[0025] The stabilizing component includes multiple sets of stabilizing members 2 inserted into the ground and positioning members 3 set at the lower end of the column 1. Multiple sets of pulling members 4 connected to the column 1 are provided on the stabilizing members 2, and reinforcement members 5 are provided between the stabilizing members 2. The supporting component includes a supporting member 6 set between the reinforcement members 5 and the column 1. The supporting member 6, the reinforcement members 5, and the column 1 form a stable triangular support.
[0026] Further, see Figure 1 , 2 The stabilizing component 2 includes a stabilizing nail 201, and the stabilizing nail 201 is provided with a connector 202.
[0027] Preferably, the stable ground nail 201 is a cylindrical rod-shaped structure, and the connector 202 is a ring-shaped structure.
[0028] Further, see Figure 1 , 2 The traction component 4 includes a traction hoop 401 set on the column 1 and a traction cable 402 connected to the connector 202. The traction hoop 401 is provided with a traction ear 7, and the traction cable 402 is provided with a tightening hook 8. The traction cable 402 is connected to the traction ear 7.
[0029] Preferably, the tension hoop 401 is formed by splitting a hollow ring into two parts, and the tension hoop 401 is provided with a locking plate 9, and the locking plate 9 is provided with a locking bolt 10.
[0030] Preferably, the tightening hook 8 is provided with a tightening sleeve 11, and the tightening hook 8 is threadedly connected to the tightening sleeve 11. Two sets of tightening hooks 8 are provided, and a connecting ring 12 is provided at the end of the tightening hook 8. The end of the traction cable 402 passes through the connector 202, the connecting ring 12, and the traction ear 7 respectively, and is fixed by a hoop. The hoop is an existing structure and can be a "U" shaped structure. The traction cable 402 is locked by a nut.
[0031] Preferably, four sets of stabilizing ground nails 201 and tension cables 402 are respectively provided, and they are all equally distributed along the circumference of column 1.
[0032] Further, see Figure 1 , 3 The positioning component 3 includes a positioning seat 301 and a positioning rod 302 set on the positioning seat 301. The positioning rod 302 is inserted into the ground. The positioning seat 301 is provided with a locking screw 13. The column 1 is inserted into the positioning seat 301. Under the action of external force, the locking screw 13 moves toward the center of the positioning seat 301 and then abuts against the column 1.
[0033] Preferably, the positioning seat 301 has a mounting cavity 14 in the middle, and the positioning seat 301 has a screw hole 15 communicating with the mounting cavity 14. The locking screw 13 is threadedly connected to the screw hole 15.
[0034] In the above setup, after determining the installation position of column 1, a hole is drilled at the installation point and the positioning rod 302 is inserted into the hole, thereby installing the positioning seat 301 on the ground. Column 1 is inserted into the installation cavity 14, and the locking screw 13 is rotated to abut against column 1, fixing column 1 on the positioning seat 301. The positioning screw can adjust the position of column 1 and ensure its verticality. After column 1 is connected to the positioning seat 301, the tension hoop 401 is fixedly connected to column 1 by the locking bolt 10. Then, holes are drilled around column 1, and the ground nails 201 are inserted into the holes. The tension cable 402 is connected to the ground nails 201 and the tension hoop 401, and the tightening hook 8 is rotated to tighten the tension cable 402. Through the cooperation of four sets of tension cables 402, positioning rod 302, and positioning seat 301, the position of column 1 is fixed and its verticality is ensured.
[0035] Further, see Figure 1 , 4 The reinforcement component 5 includes a reinforcement plate 501 detachably connected to the ground nail 201 and a connecting plate 502 disposed on the reinforcement plate 501. The reinforcement plate 501 is disposed along the circumference of the column 1, and the connecting plate 502 is detachably connected to the positioning seat 301.
[0036] Preferably, the reinforcing plate 501 is arc-shaped, and the reinforcing plate 501 is provided with a reinforcing hole 16. The stabilizing nail 201 is provided with a stabilizing nut 17. The stabilizing nail 201 passes through the reinforcing hole 16 and is inserted into the ground. The stabilizing nut 17 is rotated to abut against the reinforcing plate 501, thereby strengthening the connection between the stabilizing nail 201 and the reinforcing plate 501.
[0037] Preferably, the connecting plate 502 is divided into two parts and is connected to the adjacent reinforcing plate 501 respectively. The connecting plate 502 is provided with a connecting screw hole 15, and a connecting screw 18 is provided in the connecting screw hole 15 by thread. The connecting screw 18 passes through the connecting screw hole 15 to connect the two sets of connecting plates 502, thereby connecting the adjacent reinforcing plates 501.
[0038] Preferably, the connecting plate 502 is provided with a through hole, and the positioning seat 301 is provided with a connecting ear 19. The connecting ear 19 is provided with a hole, and the connecting plate 502 and the positioning seat 301 are connected by bolts passing through the connecting ear 19.
[0039] Further, see Figure 2 , 4 5. An adjusting column 20 is provided on the reinforcing plate 501, and an adjusting plate 21 is rotatably provided on the adjusting column 20. A locking element 22 is provided between the adjusting plate 21 and the adjusting column 20.
[0040] Preferably, the reinforcing hole 16 is located on the adjusting plate 21, and the ends of the adjusting plate 21 away from the reinforcing hole 16 are respectively provided with a first locking hole 24 and a second locking hole 25.
[0041] Preferably, the reinforcing plate 501 has a third locking hole 26 around the adjusting column 20 in the circumferential direction, and the locking member 22 includes a locking stud 27 disposed in the third locking hole 26 and a locking nut 28 disposed on the locking stud 27 and the adjusting column 20.
[0042] In the above configuration, the reinforcing plate 501 connects adjacent stabilizing nails 201 into a whole, allowing multiple sets of stabilizing nails 201 to simultaneously reinforce the column 1. When subjected to wind, the four sets of stabilizing nails 201 simultaneously resist the wind force, and under the action of the connecting plate 502, the positioning seat 301 is connected to the stabilizing nails 201, strengthening the stability of the positioning seat 301. Since the foundation under the ground is a natural foundation, there may be unstable foundation conditions such as cavities or loose soil. The stability of the stabilizing nails 201 after being inserted into the unstable foundation is poor, making it difficult to provide tension for the column 1. The adjustment plate 21 is set to adjust the column 20 and... The reinforcing plate 501 is connected, and the ground nail 201 passes through the reinforcing hole 16 on the adjusting plate 21 and is inserted into the ground. This can extend the distance between the ground nail 201 and the column 1. The adjusting plate 21 can rotate along the adjusting column 20 to adjust the angle of the ground nail 201 relative to the column 1, thereby adjusting the position of the ground nail 201 inserted into the ground. The locking stud 27 is inserted into the third locking hole 26, the second locking hole 25 and the locking nut 28 are connected. The adjusting column 20 is inserted into the first locking hole 24, the adjusting hole 23 and the locking nut 28 are connected, thereby fixing the position of the ground nail 201 relative to the reinforcing plate 501.
[0043] Further, see Figure 1 , 2 The support member 6 includes a support hoop 601 mounted on the column 1 and a support rod 602 detachably connected to the support hoop 601. The support hoop 601 is located below the tension hoop 401, and the support rod 602 is detachably connected to the connecting plate 502.
[0044] Preferably, the support rod 602 has a first connecting hole and a second connecting hole at both ends, and the support hoop 601 is a clamp in the existing structure. The support hoop 601 is connected by bolts, and the first connecting hole on the support rod 602 is connected to the bolt on the support hoop 601.
[0045] Preferably, the connecting plate 502 is provided with a connecting block 29, the connecting block 29 is provided with a third connecting hole, the third connecting hole is provided with a connecting stud 30, the connecting stud 30 passes through the second connecting hole and the third connecting hole to connect the support column and the connecting block 29, and the connecting stud 30 is provided with a connecting nut.
[0046] In the above setup, four sets of support rods 602 are connected to the connecting plate 502. The support rods 602 are rigid connections and work with the tension cable 402 to fix the column 1. When subjected to wind, the tension cable 402 at the upwind end provides tension to the column 1, and the support rods 602 at the downwind end provide support to the column 1, thereby ensuring the stability of the column 1.
[0047] In this embodiment, the positioning rod 302 and the positioning seat 301 provide a supporting foundation for the column 1, and the stable ground nails 201 inserted into the rock ground are set around the column 1. The stable ground nails 201 are connected into a whole by the reinforcing plate 501. The reinforcing plate 501 and the positioning seat 301 are connected by the connecting plate 502 to enhance the stability of the positioning seat 301. The reinforcing plate 501 and the column 1 are connected by the tension cable 402 and the support rod 602, thereby providing tension and support force for the column 1 and ensuring the stability of the column 1.
[0048] 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.
Claims
1. A photovoltaic support foundation, characterized in that, include: The stabilizing component includes multiple sets of stabilizing members (2) inserted into the ground and positioning members (3) set at the lower end of the column (1); the stabilizing members (2) are provided with multiple sets of pulling members (4) connected to the column (1), and the stabilizing members (2) are provided with reinforcement members (5). The support assembly includes a support member (6) disposed between the reinforcing member (5) and the column (1); the support member (6) forms a stable triangular support with the reinforcing member (5) and the column (1).
2. The photovoltaic support foundation according to claim 1, characterized in that: The stabilizing component (2) includes a stabilizing nail (201); the stabilizing nail (201) is provided with a connector (202).
3. A photovoltaic support foundation according to claim 2, characterized in that: The traction component (4) includes a traction hoop (401) set on the column (1) and a traction cable (402) connected to the connector (202); the traction hoop (401) is provided with a traction ear (7); the traction cable (402) is provided with a tightening hook (8), and the traction cable (402) is connected to the traction ear (7).
4. A photovoltaic support foundation according to claim 3, characterized in that: The positioning component (3) includes a positioning seat (301) and a positioning rod (302) disposed on the positioning seat (301); the positioning rod (302) is inserted into the ground; the positioning seat (301) is provided with a locking screw (13); the column (1) is inserted into the positioning seat (301); the locking screw (13) moves toward the center of the positioning seat (301) under the action of external force and then abuts against the column (1).
5. A photovoltaic support foundation according to claim 4, characterized in that: The reinforcement component (5) includes a reinforcement plate (501) detachably connected to a ground anchor (201) and a connecting plate (502) disposed on the reinforcement plate (501); the reinforcement plate (501) is disposed along the circumference of the column (1); the connecting plate (502) is detachably connected to the positioning seat (301).
6. A photovoltaic support foundation according to claim 5, characterized in that: The reinforcing plate (501) is provided with an adjusting column (20); an adjusting plate (21) is rotatably provided on the adjusting column (20); a locking element (22) is provided between the adjusting plate (21) and the adjusting column (20).
7. A photovoltaic support foundation according to claim 6, characterized in that: The support member (6) includes a support hoop (601) set on the column (1) and a support rod (602) detachably connected to the support hoop (601); the support hoop (601) is located below the tension hoop (401); the support rod (602) is detachably connected to the connecting plate (502).