Photovoltaic support pile foundation and photovoltaic support

Abstract

The utility model provides a kind of photovoltaic support pile foundation and photovoltaic support, it is related to photovoltaic equipment technical field, and the photovoltaic support pile foundation includes stand and spiral drill string;The outer lateral wall of the spiral drill string is equipped with spiral fin;The spiral drill string is rotationally connected in the axial direction of the stand, and the axial position of the spiral drill string is fixed relative to the stand, and be configured as circular motion relative to the stand when stressed.The photovoltaic support pile foundation of the utility model can effectively provide the efficiency when burying or pulling out foundation.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment technology, and more specifically, to a photovoltaic support pile foundation and a photovoltaic support. Background Technology

[0002] Currently, in solar power projects built in desert areas, over time, photovoltaic (PV) brackets will face varying degrees of foundation matrix loss or burial, resulting in poor stability of the PV array supported by the brackets or the PV array being buried. In this case, maintenance personnel need to make adjustments to ensure that the PV bracket pile foundation is buried at the appropriate depth.

[0003] However, most traditional photovoltaic support pile foundations are columnar structures. When they need to be reburied or pulled out of the foundation, maintenance personnel often have to spend a lot of time digging holes or clearing sand, which greatly reduces maintenance efficiency. Utility Model Content

[0004] This utility model provides a photovoltaic support pile foundation and a photovoltaic support to solve the problem of poor efficiency when photovoltaic support pile foundations are buried or pulled out of the ground in related technologies.

[0005] In a first aspect, this utility model provides a photovoltaic support pile foundation, including a column and a spiral drill column; the outer wall of the spiral drill column is provided with spiral blades; the spiral drill column is rotatably connected to the column about the axial direction of the column, and the axial position of the spiral drill column relative to the column is fixed, and it is configured to make circular motion relative to the column when subjected to force.

[0006] Optionally, one end of the column connected to the auger drill string is provided with an annular limiting groove, the auger drill string is sleeved on the column, and a portion of the auger drill string is limited in the annular limiting groove.

[0007] Optionally, the column includes a column body, a first limiting member, and a second limiting member; the first limiting member and the second limiting member are spaced apart along the axial direction of the column body, and the annular limiting groove is provided between the column body, the first limiting member, and the second limiting member.

[0008] Optionally, the spiral drill string has an internal accommodating space, and the axial end face of the spiral drill string has a through hole communicating with the accommodating space; the first limiting member is located within the accommodating space, and the projection of the first limiting member on the column is outside the outline range of the through hole; the column body passes through the through hole and is connected to the first limiting member; the second limiting member is located outside the accommodating space, and the projection of the second limiting member on the column is outside the outline range of the through hole.

[0009] Optionally, one end of the first limiting member along the axial direction of the column contacts the inner wall of the accommodating space; one end of the second limiting member along the axial direction of the column contacts the axial end face of the column.

[0010] Optionally, along a plane perpendicular to the axial direction of the column, the cross-sectional shape of the first limiting member is a circle that matches the cross-sectional shape of the accommodating space.

[0011] Optionally, the outer wall of the column body is provided with an external thread structure, and the second limiting member is a nut, which is threadedly connected to the column body through the external thread structure.

[0012] Optionally, the photovoltaic support pile foundation also includes a force-applying structure, which is disposed on the auger drill string and is used to cooperate with auxiliary tools.

[0013] Optionally, the force-applying structure is a force-applying hole arranged along the axial direction of the column.

[0014] Secondly, this utility model provides a photovoltaic support system, including the photovoltaic support pile foundation as described above.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] When adjusting the embedment depth of photovoltaic (PV) support pile foundations, the auger drill string, connected to the column by rotating around its axis and with a fixed axial position relative to the column, can rotate circularly relative to the column when a circumferential force is applied. Simultaneously, the auger drill string's outer wall is equipped with spiral blades, which cause it to rotate into or out of the foundation substrate during this circular motion, thus adjusting the embedment depth of the PV support pile foundation. Compared to the time-consuming process of digging pits or clearing sand to adjust the embedment depth, this method significantly improves maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a diagram showing the usage state of the photovoltaic bracket according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the photovoltaic support pile foundation according to an embodiment of the present utility model;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the column according to an embodiment of the present utility model;

[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the spiral drill string according to an embodiment of the present utility model;

[0023] Figure 7 This is a structural schematic diagram of the column body and the first limiting member according to an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the second limiting member in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Column; 101. Annular limiting groove; 102. Column body; 1021. External thread structure; 103. First limiting component; 104. Second limiting component; 1041. Through channel; 1042. Internal thread structure; 200. Spiral drill string; 201. Spiral blade; 202. Accommodating space; 203. Through hole; 204. Force hole. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0028] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0030] like Figures 1 to 3 As shown, an embodiment of this utility model provides a photovoltaic support pile foundation, including a column 100 and a spiral drill column 200; the outer side wall of the spiral drill column 200 is provided with a spiral blade 201; the spiral drill column 200 is rotatably connected to the column 100 about the axial direction of the column 100, and the axial position of the spiral drill column 200 relative to the column 100 is fixed, and it is configured to perform circular motion relative to the column 100 when subjected to force.

[0031] Specifically, such as Figure 1 , 2 As shown, the photovoltaic support pile foundation consists of two parts: an upper part is a column 100, and a lower part is a spiral drill string 200. The spiral drill string 200 is rotatably connected to the lower end of the column 100 around its axial direction (i.e., the Z-axis direction). Simultaneously, the spiral drill string 200 is fixed in position relative to the axial direction of the column 100; that is, the spiral drill string 200 cannot move along the axial direction of the column 100, but can only perform circular motion relative to the column 100.

[0032] In this embodiment, when it is necessary to adjust the embedment depth of the photovoltaic support pile foundation, since the auger drill string 200 is rotatably connected to the column 100 around its axial direction, and the axial position of the auger drill string 200 relative to the column 100 is fixed, when a circumferential force is applied to the auger drill string 200 of the photovoltaic support pile foundation, the auger drill string 200 can perform circular motion relative to the column 100. Simultaneously, since the outer wall of the auger drill string 200 is provided with helical blades 201, during the circular motion of the auger drill string 200 relative to the column 100, the helical blades 201 can cause the auger drill string 200 to rotate into or out of the foundation matrix, thereby achieving adjustment of the embedment depth of the photovoltaic support pile foundation. Compared to the time spent by maintenance personnel digging pits or clearing sand to adjust the embedment depth of the photovoltaic support pile foundation, this method can effectively improve maintenance efficiency.

[0033] Optionally, the end of the column 100 connected to the spiral drill string 200 is provided with an annular limiting groove 101, the spiral drill string 200 is sleeved on the column 100, and a portion of the spiral drill string 200 is limited in the annular limiting groove 101.

[0034] Specifically, such as Figure 4 , 5 As shown, the lower end of the column 100 is provided with an annular limiting groove 101, the upper end of the spiral drill string 200 is sleeved on the lower end of the column 100, and the upper part of the spiral drill string 200 is limited in the annular limiting groove 101.

[0035] In this optional embodiment, when the embedment depth of the photovoltaic support pile foundation needs to be adjusted, the auger drill string 200, under the limiting action of the annular limiting groove 101, can be stably fitted onto the column 100, preventing slippage or detachment along the axial direction of the column 100. Simultaneously, the structural characteristics of the annular limiting groove 101 allow the auger drill string 200 to rotate freely within it. When a circumferential force is applied to the auger drill string 200, it can smoothly perform circular motion relative to the column 100, thereby achieving insertion or extraction from the foundation matrix through the action of the helical blades 201, effectively adjusting the embedment depth of the photovoltaic support pile foundation. This structural design not only ensures a reliable connection between the auger drill string 200 and the column 100 but also provides stable support for the rotation of the auger drill string 200, making the adjustment operation smoother and more efficient, further improving the operation and maintenance efficiency and reliability of the photovoltaic support pile foundation.

[0036] Optionally, the column 100 includes a column body 102, a first limiting member 103, and a second limiting member 104; the first limiting member 103 and the second limiting member 104 are spaced apart along the axial direction of the column 100 on the column body 102, and the annular limiting groove 101 is provided between the column body 102, the first limiting member 103, and the second limiting member 104.

[0037] Specifically, such as Figure 3 As shown, the column body 102 and the first limiting member 103 are cylindrical in shape. The first limiting member 103 is disposed on the lower end face of the column body 102. The first limiting member 103 is coaxially disposed with the column body 102, and the diameter of the first limiting member 103 is larger than the diameter of the column body 102. The second limiting member 104 is annular and is sleeved on the column body 102. Thus, an annular limiting groove 101 is formed between the column body 102, the first limiting member 103 and the second limiting member 104.

[0038] In this optional embodiment, the first limiting member 103 and the second limiting member 104 are spaced apart along the axial direction of the column 100 on the column body 102. This creates a region with a certain spatial range between the first limiting member 103 and the second limiting member 104 on the column body 102. That is, an annular limiting groove 101 is provided between the column body 102, the first limiting member 103 and the second limiting member 104. The presence of the annular limiting groove 101 provides a stable and continuous locking space around the column 100 for the auger drill string 200. Its surrounding characteristic allows the auger drill string 200 to rotate around the circumference of the column 100 without axial movement along the column 100, thereby ensuring the stability and reliability of the rotation.

[0039] In other embodiments, the first limiting member 103 may also be a plate-shaped member, depending on the actual needs.

[0040] Optionally, the spiral drill string 200 has an internal accommodating space 202, and the axial end face of the spiral drill string 200 has a through hole 203 communicating with the accommodating space 202; the first limiting member 103 is located inside the accommodating space 202, and the projection of the first limiting member 103 on the column 100 is outside the outline range of the through hole 203; the column body 102 passes through the through hole 203 and is connected to the first limiting member 103; the second limiting member 104 is located outside the accommodating space 202, and the projection of the second limiting member 104 on the column 100 is outside the outline range of the through hole 203.

[0041] Specifically, such as Figure 2 As shown, the auger drill string 200 has an internal accommodating space 202 with an opening at the lower end; as Figure 6 As shown, the upper end face of the auger drill string 200 is provided with a through hole 203 communicating with the accommodating space 202; as Figure 3 As shown, the first limiting member 103 is located within the accommodating space 202, and the portion of the projection of the first limiting member 103 on the column 100 is outside the outline of the through hole 203, so that the first limiting member 103 cannot pass through the through hole 203; the column body 102 passes through the through hole 203 and is connected to the first limiting member 103 located within the accommodating space 202; the second limiting member 104 is located outside the accommodating space 202, and the projection of the second limiting member 104 on the column 100 is outside the outline of the through hole 203, so that the second limiting member 104 cannot pass through the through hole 203.

[0042] In this optional embodiment, since the auger drill string 200 has an accommodating space 202 inside, the first limiting member 103 can be located within the accommodating space 202; at the same time, the projection of the first limiting member 103 on the column 100 is outside the outline range of the through hole 203 of the auger drill string 200, and the second limiting member 104 is located outside the accommodating space 202, and its projection on the column 100 is also outside the outline range of the through hole 203. In this way, the second limiting member 104 and the first limiting member 103 can cooperate with each other to effectively limit the auger drill string 200, thereby ensuring that the auger drill string 200 rotates stably relative to the column body 102.

[0043] Optionally, one end of the first limiting member 103 along the axial direction of the column 100 contacts the inner wall of the accommodating space 202; one end of the second limiting member 104 along the axial direction of the column 100 contacts the axial end face of the column 100.

[0044] Specifically, such as Figure 3 As shown, the first limiting member 103 is cylindrical in shape, and its upper end face is in contact with the inner top wall of the accommodating space 202; the second limiting member 104 is annular in shape, and its lower end face is in contact with the top surface of the column 100; thus, the first limiting member 103 and the second limiting member 104 cooperate to limit the spiral drill string 200, thereby restricting the axial movement of the spiral drill string 200.

[0045] Optionally, along a plane perpendicular to the axial direction of the column 100, the cross-sectional shape of the first limiting member 103 is a circle that matches the cross-sectional shape of the accommodating space 202.

[0046] Specifically, such as Figure 3 As shown, the first limiting member 103 is a cylinder, so its horizontal cross-sectional shape is circular; the accommodating space 202 is a cylindrical space as a whole, so its horizontal cross-sectional shape is also circular; and it matches the horizontal cross-sectional shape of the first limiting member 103, that is, the circumferential sidewall of the first limiting member 103 fits the inner sidewall of the accommodating space 202.

[0047] In this optional embodiment, the matching of the circular cross-section ensures the stability and precise positioning of the first limiting member 103 within the accommodating space 202. Because of the uniform geometric characteristics of a circle, regardless of the position of the first limiting member 103 within the accommodating space 202, its contact area and force distribution with the accommodating space 202 remain consistent. This allows the auger drill string 200 to withstand uniform stress during operation, avoiding structural damage caused by stress concentration.

[0048] Optionally, the outer wall of the column body 102 is provided with an external thread structure 1021, and the second limiting member 104 is a nut, which is threaded to the column body 102 through the external thread structure 1021.

[0049] Specifically, such as Figure 7 As shown, the circumferential sidewall of the column body 102 is provided with an external thread structure 1021, and the second limiting member 104 is a nut, as... Figure 8 As shown, the nut has a through channel 1041 with an internal thread structure 1042. The nut is sleeved on the column body 102 through the through channel 1041 and is threadedly connected to the column body 102 through the external thread structure 1021 and the internal thread structure 1042.

[0050] In this optional embodiment, the threaded connection has good stability and reliability. During long-term use, even when affected by external environmental factors (such as vibration, temperature changes, etc.), the threaded connection can still maintain its tightness, ensuring that the second limiting member 104 is firmly fixed on the column body 102 and will not easily loosen.

[0051] In other embodiments, the column body 102 is provided with a pin hole, and the second limiting member 104 is a pin. Part of the pin is accommodated in the pin hole, and part of it is located outside the pin hole and contacts the upper end face of the auger drill string 200.

[0052] Optionally, the photovoltaic support pile foundation also includes a force-applying structure, which is disposed on the auger drill string 200 and is used to cooperate with auxiliary tools.

[0053] In this optional embodiment, a force-applying structure is provided on the auger drill string 200 for use with auxiliary tools. This design allows for more convenient and efficient force transmission and application when applying circumferential force to the auger drill string 200 with the aid of auxiliary tools. Due to the presence of the force-applying structure, maintenance personnel do not need to directly contact the auger drill string 200; instead, they use auxiliary tools in conjunction with the force-applying structure, thus avoiding slippage and uneven force distribution that may occur with direct contact, ensuring the stability and accuracy of force application. Simultaneously, the auxiliary tools allow for more effortless application of sufficient circumferential force to the auger drill string 200, enabling smoother circular motion and thus driving the spiral blades 201 to efficiently rotate into or out of the foundation matrix, achieving rapid adjustment of the embedment depth of the photovoltaic support pile foundation.

[0054] Optionally, the force-applying structure is a force-applying hole 204 provided along the axial direction of the column 100.

[0055] Specifically, such as Figure 6As shown, the edge of the upper end face of the column 100 extends outward to form a flange, and the flange is provided with a plurality of force holes 204 surrounding the column body 102.

[0056] In this optional embodiment, the force-applying hole 204 provides a clear and stable force-applying point for the force-applying tool. When it is necessary to screw the auger drill string 200 in or out to adjust the embedment depth of the photovoltaic support pile foundation, maintenance personnel can use a special tool (such as a wrench) with a plug at one end that matches the force-applying hole 204. After the plug is inserted into the force-applying hole 204, the maintenance personnel can use the wrench to make the auger drill string move in a circular motion relative to the column 100.

[0057] The photovoltaic support structure of this utility model includes the photovoltaic support pile foundation as described above, and the photovoltaic support pile foundation is configured to support the photovoltaic panel.

[0058] Specifically, such as Figure 1 As shown, each photovoltaic support has two photovoltaic support pile foundations to support the photovoltaic array.

[0059] In other implementations, the number of photovoltaic support pile foundations for each photovoltaic support structure can be one, three, or four, etc. There is no limitation here; it depends on the actual needs.

[0060] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A photovoltaic support pile foundation, characterized in that, It includes a column (100) and a spiral drill string (200); the outer side wall of the spiral drill string (200) is provided with spiral blades (201); the spiral drill string (200) is rotatably connected to the column (100) about the axis of the column (100), and the axial position of the spiral drill string (200) relative to the column (100) is fixed, and it is configured to make a circular motion relative to the column (100) when subjected to force.

2. The photovoltaic support pile foundation according to claim 1, characterized in that, The column (100) is connected to the spiral drill string (200) at one end with an annular limiting groove (101). The spiral drill string (200) is sleeved on the column (100), and a portion of the spiral drill string (200) is limited in the annular limiting groove (101).

3. The photovoltaic support pile foundation according to claim 2, characterized in that, The column (100) includes a column body (102), a first limiting member (103), and a second limiting member (104); the first limiting member (103) and the second limiting member (104) are spaced apart on the column body (102) along the axial direction of the column (100), and the annular limiting groove (101) is provided between the column body (102), the first limiting member (103), and the second limiting member (104).

4. The photovoltaic support pile foundation according to claim 3, characterized in that, The spiral drill string (200) has an internal accommodating space (202), and the axial end face of the spiral drill string (200) has a through hole (203) communicating with the accommodating space (202); the first limiting member (103) is located inside the accommodating space (202), and the projection of the first limiting member (103) on the column (100) is outside the outline range of the through hole (203); the column body (102) passes through the through hole (203) and is connected to the first limiting member (103); the second limiting member (104) is located outside the accommodating space (202), and the projection of the second limiting member (104) on the column (100) is outside the outline range of the through hole (203).

5. The photovoltaic support pile foundation according to claim 4, characterized in that, The first limiting member (103) has one end along the axial direction of the column (100) in contact with the inner wall of the accommodating space (202); the second limiting member (104) has one end along the axial direction of the column (100) in contact with the axial end face of the column (100).

6. The photovoltaic support pile foundation according to claim 4, characterized in that, Along a plane perpendicular to the axial direction of the column (100), the cross-sectional shape of the first limiting member (103) is a circle that matches the cross-sectional shape of the accommodating space (202).

7. The photovoltaic support pile foundation according to claim 3, characterized in that, The outer wall of the column body (102) is provided with an external thread structure (1021), and the second limiting member (104) is a nut, which is threaded to the column body (102) through the external thread structure (1021).

8. The photovoltaic support pile foundation according to claim 1, characterized in that, It also includes a force-applying structure, which is disposed on the auger drill string (200) and is used to cooperate with auxiliary tools.

9. The photovoltaic support pile foundation according to claim 8, characterized in that, The force-applying structure is a force-applying hole (204) provided along the axial direction of the column (100).

10. A photovoltaic support structure, characterized in that, Including the photovoltaic support pile foundation as described in any one of claims 1 to 9.

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