Anchoring foundation, photovoltaic support and photovoltaic system

Abstract

The application discloses an anchoring foundation, a photovoltaic support and a photovoltaic system, and belongs to the photovoltaic power generation field. The anchoring foundation is applied to the photovoltaic support and comprises a pull rod, a first end of the pull rod being provided with a first connecting structure; an anchoring head, the anchoring head being installed at a second end of the pull rod; an anchor claw, the anchor claw being pivotally installed between a first attitude and a second attitude of the anchoring head, an area of an axial projection of the anchor claw along the pull rod in the second attitude being greater than that in the first attitude; and an elastic member, the elastic member being elastically connected between the anchor claw and the anchoring head and being used for driving the anchor claw to rotate from the first attitude to the second attitude. According to the anchoring foundation, the pull rod with a high length-diameter ratio and the anchor claw which can be pivoted from the first attitude to the second attitude with a large bearing surface are adopted, so that small earthwork construction can be realized, the anchoring foundation has super strong tensile performance, and the cost of civil engineering excavation and foundation material is reduced.

Claims

1. An anchoring foundation (100), characterized in that, Applications to photovoltaic mounting systems (10) include: The first end of the pull rod (110) has a first connecting structure (111); An anchor head (120) is installed at the second end of the tie rod (110); An anchor claw (130) is pivotally mounted on the anchor head (120) between a first posture and a second posture, wherein the orthographic projection area of ​​the anchor claw (130) along the axis of the tie rod (110) in the second posture is greater than the orthographic projection area in the first posture; An elastic element (140) is elastically connected between the anchor claw (130) and the anchor head (120) for driving the anchor claw (130) to rotate from the first posture to the second posture.

2. The anchoring foundation (100) according to claim 1, characterized in that, The anchor claw (130) is a curved sheet structure, and the center of curvature of the anchor claw (130) in the first posture is located on the side of the anchor claw (130) facing the anchor head (120), and the center of curvature of the anchor claw (130) in the second posture is located on the side of the anchor claw (130) facing the first end of the tie rod (110).

3. The anchoring foundation (100) according to claim 2, characterized in that, The anchor claw (130) is provided with an installation part (131) and a limiting part (132). The anchor claw (130) is pivotally mounted to the anchor head (120) through the installation part (131). In the second posture, the limiting part (132) abuts against the anchor head (120).

4. The anchoring foundation (100) according to claim 1, characterized in that, The anchor head (120) includes: The anchor head body (121) is provided with an installation groove (125), and the elastic element (140) is installed in the installation groove (125). Multiple mounting seats (123) are circumferentially spaced around the anchor head body (121) on the outer periphery of the anchor head (120), and there are multiple anchor claws (130), which are pivotally mounted on the multiple mounting seats (123).

5. The anchoring foundation (100) according to claim 1, characterized in that, The end of the anchor head (120) near the first end of the tie rod (110) is provided with a second connecting structure (124) for connecting the push rod.

6. The anchoring foundation (100) according to claim 1, characterized in that, The end of the anchor head (120) away from the first end of the tie rod (110) has a guide section (122), and the outer peripheral wall of the guide section (122) is a conical surface.

7. The anchoring foundation (100) according to any one of claims 1-6, characterized in that, Also includes: The fastener (150) has an anchor head (120) with a through hole (126), and the tie rod (110) passes through the through hole (126) to connect with the fastener (150). The cross-sectional area of ​​the fastener (150) is greater than the cross-sectional area of ​​the through hole (126).

8. The anchoring foundation (100) according to any one of claims 1-6, characterized in that, Also includes: A centering limiting structure (160) is installed on the tie rod (110) and spaced apart from the anchor head (120).

9. The anchoring foundation (100) according to claim 8, characterized in that, The centering limiting structure (160) includes: The sleeve portion (161) is sleeved on the outside of the pull rod (110); Multiple balancing wings (162) are spaced apart circumferentially along the sleeve portion (161).

10. A photovoltaic support (10), characterized in that, include: End support structure (200); Component cable (300) is installed between the end support structures (200); The anchoring foundation (100) as described in any one of claims 1-9 is suitable for installation underground, and the first end is connected to the end support structure (200).

11. A photovoltaic support (10), characterized in that, include: End support structure (200); Component cable (300) is installed between the end support structures (200); The first end of the cable-stayed member (400) is connected to the end support structure (200) or the component cable (300); The anchoring foundation (100) as described in any one of claims 1-9 is suitable for installation underground, and its first end is connected to the second end of the cable tie member (400), wherein the angle between the extension direction of the anchoring foundation (100) and the extension direction of the cable tie member (400) is less than 10°.

12. A photovoltaic system (1), characterized in that, include: Photovoltaic support (10) as described in claim 10 or 11; A photovoltaic module (20) is installed on the module cable (300).

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