Column base node capable of being rapidly installed and photovoltaic support

Abstract

The utility model discloses a quickly installable column base node and a photovoltaic support, and belongs to the photovoltaic technical field, the column base node comprises a stand column and a column base seat with a bottom column, the bottom column and the stand column are inserted together and are connected with a self-locking member, at least two first lock holes penetrating through the side wall of the bottom column are distributed along the circumferential direction of the bottom column, and the bottom column and the column base seat are connected with the self-locking member. At least two second lock holes penetrating through the side wall of the stand column are distributed in the circumferential direction of the stand column, at least two self-locking elastic pieces are distributed on the self-locking piece in the circumferential direction, self-locking columns protruding outwards are arranged on the self-locking elastic pieces, and the circumferential positions of the self-locking columns correspond to the circumferential positions of the first lock holes and the circumferential positions of the second lock holes in a one-to-one mode. And the self-locking column is used for locking the first lock hole and the second lock hole after the bottom column and the vertical column are inserted. The problem that self-locking is not reliable is solved through multi-point self-locking, and meanwhile the self-locking structure is further simplified.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation equipment technology, and in particular, a photovoltaic support bracket. Background Technology

[0002] Solar photovoltaic (PV) mounting systems are the main load-bearing structures of solar power generation systems. With the promotion of distributed power stations and market changes, the demand for rooftop PV power stations is increasing, and PV investment companies are paying more and more attention to cost reduction and efficiency improvement. Traditional PV mounting systems are usually connected to the roof via concrete foundations, bolts, or welding. Concrete foundations require a long time for the concrete to solidify and reach the required strength. Bolt and welding installation methods have problems such as numerous weld points, large workload, and low efficiency, while also requiring significant manpower and time costs. In order to meet deadlines, welding quality may not be guaranteed, which reduces the safety and reliability of the PV mounting system structure. In addition, welding construction may also pose a fire risk.

[0003] To avoid problems in the welding construction of photovoltaic support column base nodes, Chinese Patent Publication No. CN221227396 U discloses a rapid-installation photovoltaic support system that solves the problem of low installation efficiency in existing technologies that use bolts to connect the column and column base. The system includes a column and column base, with a self-locking structure between them. This self-locking structure includes an outer sleeve, an inner sleeve, and a self-locking component. The inner sleeve is inserted into the outer sleeve, and each of the outer and inner sleeves has at least one locking hole on its side wall. The self-locking component has an elastic engagement part that engages with the locking hole when the inner sleeve is inserted into the outer sleeve. Compared to existing bolt-fixed technologies, this significantly speeds up the installation process. However, this self-locking structure requires a self-locking spring for each self-locking point. Increasing the number of self-locking points necessitates multiple self-locking springs, complicating the structure. Conversely, reducing the number of self-locking points can lead to unreliable self-locking. Utility Model Content

[0004] The purpose of this invention is to provide a column base node and photovoltaic bracket that can be installed quickly, solves the problem of unreliable self-locking through multi-point self-locking, and further simplifies the self-locking structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] First, a quick-installable column base node is provided, including a column and a column base with a bottom column. The bottom column and the column are inserted into each other and connected by a self-locking component. The bottom column has at least two first locking holes penetrating the side wall of the bottom column along its circumference. The column has at least two second locking holes penetrating the side wall of the column along its circumference. The self-locking component has at least two self-locking springs along its circumference. Each self-locking spring has an outwardly protruding self-locking post. The circumferential position of the self-locking post corresponds one-to-one with the first and second locking holes, so that the self-locking post locks the first and second locking holes after the bottom column and the column are inserted.

[0007] Preferably, the self-locking spring extends from top to bottom, and the lower free end is provided with a vertical part, and the self-locking post is provided in the vertical part.

[0008] Preferably, the upper end of the self-locking spring is provided with a central extension portion extending towards the center, and the central extension portions of at least two self-locking springs are connected together.

[0009] Preferably, four integrally formed self-locking spring pieces are evenly distributed along the circumference, and the central extensions of the four self-locking spring pieces form a cross structure.

[0010] Preferably, at the same circumferential position of the column base node, at least two first locking holes and second locking holes are provided along the axial direction.

[0011] Preferably, the head end of the self-locking pin is provided with a hemispherical portion.

[0012] Preferably, both the base column and the upright column are circular tubes; and / or, the upright column is inserted into the inside of the base column.

[0013] Preferably, the column base further includes a base plate, and the base plate is connected to column bolts.

[0014] Preferably, the lower end of the bottom column is welded to the bottom plate as a single unit.

[0015] In addition, a photovoltaic support structure is also provided, including a support column, wherein the support column is provided with the aforementioned column foot node.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. The base column and the upright column are inserted together, and the upright column and the column base are locked together by a self-locking component. Since multiple first locking holes, second locking holes, self-locking springs and self-locking pins are set along the circumference, the self-locking pin locks the first locking holes and second locking holes after the base column and the upright column are inserted, realizing multi-point locking in the circumference. This prevents the base column and the upright column from loosening and separating, and solves the problem of unreliable self-locking.

[0018] The self-locking component has at least two self-locking springs distributed circumferentially, and a self-locking pin is set on the self-locking spring. In this way, multiple self-locking pins can be set on each self-locking spring, and the structure is simpler compared with the self-locking spring.

[0019] Finally, the main components of the column base nodes—the columns, column bases, and self-locking devices—can be mass-produced in the factory by professionals. This not only improves production efficiency but also ensures product quality. These nodes can then be quickly installed on-site, ensuring the safety and reliability of the photovoltaic support structure.

[0020] 2. The self-locking spring extends from top to bottom, and the lower free end is provided with a vertical part. The self-locking pin is provided in the vertical part. In this way, the part above the vertical part of the self-locking spring can generate sufficient elasticity in the vertical part to drive the self-locking pin to lock the first lock hole and the second lock hole. After locking, the vertical part is in a vertical state, maintaining the self-locking state between the self-locking pin and the first lock hole and the second lock hole.

[0021] 3. The central extensions of at least two self-locking springs are connected together, thus forming a single unit for easy installation. Because four integrally formed self-locking springs are evenly distributed circumferentially, and their central extensions form a cross structure, locking of the column base node is achieved in all four circumferential directions. Simultaneously, at least two first and second locking holes are provided axially at the same circumferential position of the column base node, providing multiple self-locking points both circumferentially and axially, significantly increasing self-locking reliability.

[0022] 4. Because the head of the self-locking pin is provided with a hemispherical part, it is convenient for the head of the self-locking pin to engage with the first lock hole and the second lock hole.

[0023] 5. Both the base column and the upright column can be made of round steel pipe, which is a standardized product. It is not only high in strength but also low in cost, and is widely used in photovoltaic brackets.

[0024] 6. The column base is installed via a base plate, which can be secured with column base bolts for easy on-site construction. Furthermore, since the lower end of the column is welded to the base plate as a single unit, it can be pre-welded in the factory, reducing on-site welding workload and improving welding quality through mechanized welding operations in the factory.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Figure 1 Schematic diagram of photovoltaic support column base Figure 1 ;

[0028] Figure 2 Schematic diagram of photovoltaic support column base Figure 2 ;

[0029] Figure 3 Diagram of column base Figure 1 ;

[0030] Figure 4 Diagram of column base Figure 2 ;

[0031] Figure 5 Schematic diagram of photovoltaic support column Figure 1 ;

[0032] Figure 6 Schematic diagram of photovoltaic support column Figure 2 ;

[0033] Figure 7 Diagram of a self-locking spring Figure 1 ;

[0034] Figure 8 Diagram of a self-locking spring Figure 2 ;

[0035] Figure 9 Column base node section Figure 1 ;

[0036] Figure 10 Column base node section Figure 2 .

[0037] In the diagram: 1-Column, 2-Self-locking column one, 3-Self-locking column two, 4-Self-locking column three, 5-Self-locking column four, 6-Self-locking column five, 7-Self-locking column six, 8-Self-locking column seven, 9-Self-locking column eight, 10-Base plate, 11-Column base bolt one, 12-Column base bolt two, 13-Column base bolt three, 14-Column base bolt four, 15-Column base weld, 16-Self-locking component, 17-Base column, 18-Base column self-locking hole one, 19-Base column self-locking hole two, 20-Base column self-locking hole three, 21-Base column self-locking hole three. Locking hole 4, 22-bottom column self-locking hole 5, 23-bottom column self-locking hole 6, 24-bottom column self-locking hole 7, 25-bottom column self-locking hole 8, 26-upright column self-locking hole 1, 27-upright column self-locking hole 2, 28-upright column self-locking hole 3, 29-upright column self-locking hole 4, 30-upright column self-locking hole 5, 31-upright column self-locking hole 6, 32-upright column self-locking hole 7, 33-upright column self-locking hole 8, 34-spring plate 1, 35-spring plate 2, 36-spring plate 3, 37-spring plate 4, 38-column base. Detailed Implementation

[0038] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0039] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0040] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "inner," and "outer," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0043] like Figures 1 to 10As shown, this utility model provides a quick-installable column base node, including a column 1 and a column base 38 with a base column 17. The base column 17 and the column 1 are inserted into each other, and the base column and the column are connected by a self-locking member 16. Typically, the column is inserted into the inside of the base column, but the inside-outside and top-bottom relationships can be interchanged. The base column 17 has at least two first locking holes penetrating the side wall of the base column along its circumference. The column 1 has at least two second locking holes penetrating the side wall of the column along its circumference. The self-locking member has at least two self-locking springs along its circumference. Each self-locking spring has an outwardly protruding self-locking post. The circumferential position of the self-locking post corresponds one-to-one with the first and second locking holes, so that the self-locking post locks the first and second locking holes after the base column and the column are inserted.

[0044] Because multiple first locking holes, second locking holes, self-locking springs, and self-locking pins are provided along the circumference, the self-locking pin locks the first and second locking holes after the bottom pin and the top pin are inserted, achieving multi-point circumferential locking. This prevents the bottom pin and the top pin from loosening or separating, thus solving the problem of unreliable self-locking.

[0045] In addition, the self-locking component has at least two self-locking springs distributed circumferentially, and self-locking pins are set on the self-locking springs. In this way, multiple self-locking pins can be set on each self-locking spring, and the structure is simpler compared with the self-locking spring.

[0046] Finally, the main components of the column base nodes—the columns, column bases, and self-locking devices—can be mass-produced in the factory by professionals. This not only improves production efficiency but also ensures product quality. These nodes can then be quickly installed on-site, ensuring the safety and reliability of the photovoltaic support structure.

[0047] In this embodiment, the self-locking spring extends from top to bottom, with a vertical portion at its lower free end, and the self-locking pin is located on the vertical portion. The upper end of the self-locking spring has a central extension portion extending towards the center, and the central extension portions of at least two self-locking springs are connected together, thus forming a single unit for easy overall installation. Furthermore, the central extension portion extends horizontally, and an oblique portion is provided between the central extension portion and the vertical portion. The central extension portion and the oblique portion allow the vertical portion to generate sufficient elasticity, driving the self-locking pin to lock the first and second locking holes. After locking, the vertical portion remains vertical, maintaining the self-locking state between the self-locking pin and the first and second locking holes.

[0048] In addition, four integrally formed self-locking spring pieces are evenly distributed circumferentially, with the central extensions of the four self-locking spring pieces forming a cross structure. This achieves locking in all four circumferential directions of the column base node. Simultaneously, at least two first locking holes and second locking holes are provided axially at the same circumferential position of the column base node. This provides multiple self-locking points both circumferentially and axially, greatly increasing the reliability of the self-locking mechanism. Furthermore, the head end of the self-locking column has a hemispherical portion, facilitating the engagement of the head end of the self-locking column with the first and second locking holes.

[0049] Furthermore, the column base 38 also includes a base plate 10, which is connected to column base bolts. The lower end of the base column is welded integrally with the base plate. This allows for pre-welding in the factory, reducing on-site welding workload and improving welding quality through mechanized welding operations. Alternatively, bolted connections or other connection methods can be used. Both the base column and the upright column are round tubes. Square steel tubes or aluminum alloy tubes with the same structure can also be used; these are standardized products that are not only high-strength but also low-cost, and are widely used in photovoltaic brackets.

[0050] Specifically, after the bottom post 17 is unfolded, the first self-locking holes form a rectangular array, with a total of 8 first self-locking holes. For example... Figure 3 , Figure 4 As shown, the base column 17 has two rows of first self-locking holes at heights of 200mm and 300mm above the base plate 10, with four first self-locking holes in each row. The eight first self-locking holes are designated as follows: Base Column Self-Locking Hole 18, Base Column Hole 29, Base Column Self-Locking Hole 30, Base Column Self-Locking Hole 41, Base Column Self-Locking Hole 52, Base Column Self-Locking Hole 63, Base Column Self-Locking Hole 74, and Base Column Self-Locking Hole 85. The base column 17 is welded to the base plate 10 in the factory, forming a column base weld 15 at the joint. The base plate has a square structure and is fixed by four column base bolts: Column Base Bolt 11, Column Base Bolt 22, Column Base Bolt 33, and Column Base Bolt 44, connecting to the roof concrete structure or other foundations.

[0051] After column 1 is unfolded, the second self-locking holes form a rectangular array, with a total of 8 second self-locking holes. For example... Figure 5 , Figure 6 As shown, the column 1 is provided with two rows of second self-locking holes at heights of 190mm and 290mm above the column bottom, respectively. Each row has 4 second self-locking holes, namely column self-locking hole 1 26, column self-locking hole 27, column self-locking hole 3 28, column self-locking hole 4 29, column self-locking hole 5 30, column self-locking hole 6 31, column self-locking hole 7 32, and column self-locking hole 8 33.

[0052] like Figure 7 , Figure 8As shown, the four integrated self-locking springs are spring sheet 1 (34), spring sheet 2 (35), spring sheet 3 (36), and spring sheet 4 (37), and the eight self-locking posts are self-locking post 1 (2), self-locking post 2 (3), self-locking post 3 (4), self-locking post 4 (5), self-locking post 5 (6), self-locking post 6 (7), self-locking post 7 (8), and self-locking post 8 (9). The spring sheets and self-locking posts are welded together at the factory.

[0053] like Figure 9 , Figure 10As shown, the column 1 is connected to the column base 38 via the self-locking component 16. First, when the self-locking component 16 is inserted into the bottom post 17, the self-locking pins 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, and 8-9 in the self-locking component are aligned with the self-locking holes 1-18, 1-19, 2-20, 2-21, 2-22, 2-23, 2-24, and 2-25 in the bottom post 17, respectively. Then, the self-locking component 16 is rotated until the self-locking pins 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, and 8-9 in the self-locking component 16 are aligned with the self-locking holes 1-18, 1-29, 2-20, 2-21, 2-22, 2-23, 2-24, and 2-25 in the bottom post 17, respectively. When the positions of Hole 2 19, Bottom Post Self-Locking Hole 3 20, Bottom Post Self-Locking Hole 4 21, Bottom Post Self-Locking Hole 5 22, Bottom Post Self-Locking Hole 6 23, Bottom Post Self-Locking Hole 7 24 and Bottom Post Self-Locking Hole 8 25 are aligned, the self-locking component 16, through the elasticity of Spring Plate 1 34, Spring Plate 2 35, Spring Plate 3 36 and Spring Plate 4 37, causes the self-locking pins 1 2, 2 3, 3 4, 4 5, 5 6, 6 7, 7 8 and 8 9 in the self-locking component 16 to engage and lock with the bottom post self-locking holes 1 18, 2 19, 3 20, 4 21, 5 22, 6 23, 7 24 and 8 25 in the bottom post 17.When column 1 is fitted into bottom column 17, the self-locking components—self-locking column 1 (2), self-locking column 2 (3), self-locking column 3 (4), self-locking column 4 (5), self-locking column 5 (6), self-locking column 6 (7), self-locking column 7 (8), and self-locking column 8 (9)—cause spring plates 1 (34), 2 (35), 3 (36), and 4 (37) to contract. Simultaneously, the self-locking holes 1 (26), 2 (27), 3 (28), and 4 (2) in column 1... 9. When the heights of self-locking holes 5, 6, 7, 8, and 9 of the column correspond to those of self-locking posts 1, 2, 3, 4, 5, 6, 6, 7, 8, and 9 in the self-locking component, rotate column 1. When the heights of self-locking holes 1, 2, 2, 3, 4, 5, 6, 6, 7, 8, and 9 of column 1 correspond, rotate column 1. When the positions of self-locking holes 5, 30, 6, 7, 8, and 9 in the self-locking component 16 correspond to those of self-locking posts 1, 2, 3, 4, 5, 6, 6, 7, 8, and 9 in the self-locking component 16, the self-locking component 16, through the elasticity of spring plates 1, 34, 35, 36, and 4, enables the self-locking component 16 to... The self-locking pins 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, and 8-9 in lock component 16 engage and lock with the self-locking holes 1-26, 27, 3-28, 4-29, 5-30, 6-31, 7-32, and 8-33 in column 1, thus completing the installation.

[0054] In addition to the preferred embodiments described above, there are other embodiments of this utility model. 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 claimed by this utility model.

Claims

1. A quick-installable column base joint, comprising a column and a column base with a bottom column, wherein the bottom column and the column are interlocked and connected by a self-locking component, characterized in that, The base post has at least two first locking holes penetrating the side wall of the base post along its circumference. The upright post has at least two second locking holes penetrating the side wall of the upright post along its circumference. The self-locking component has at least two self-locking spring pieces along its circumference. Each self-locking spring piece is provided with an outwardly protruding self-locking post. The circumferential positions of the self-locking post correspond one-to-one with the first and second locking holes, so that the self-locking post locks the first and second locking holes after the base post and the upright post are inserted.

2. The column base node according to claim 1, characterized in that, The self-locking spring extends from top to bottom, and a vertical part is provided at the lower free end, with the self-locking pin located in the vertical part.

3. The column base node according to claim 2, characterized in that, The upper end of the self-locking spring is provided with a central extension portion extending towards the center, and the central extension portions of at least two self-locking springs are connected together.

4. The column base node according to claim 3, characterized in that, Four self-locking spring pieces are evenly distributed around the circumference, and the central extensions of the four self-locking spring pieces form a cross structure.

5. The column base node according to claim 1, characterized in that, At the same circumferential position of the column base node, at least two first lock holes and second lock holes are provided along the axial direction.

6. The column base node according to claim 1, characterized in that, The self-locking pin has a hemispherical part at its head end.

7. The column base node according to claim 1, characterized in that, Both the base column and the upright column are round tubes; and / or, the upright column is inserted into the inside of the base column.

8. The column base node according to claim 1, characterized in that, The column base also includes a base plate, and the base plate is connected to column bolts.

9. The column base node according to claim 8, characterized in that, The lower end of the base column is welded to the base plate as a whole.

10. A photovoltaic support structure, comprising a support column, characterized in that, The support column is provided with a column foot node as described in any one of claims 1 to 9.

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