Fixing structure of flexible photovoltaic support

Abstract

The utility model discloses a fixing structure of a flexible photovoltaic support, which belongs to the technical field of photovoltaic engineering and comprises a cast-in-place pile, an embedded part and a cable-stayed base. At least part of the structure of the embedded part is arranged in the cast-in-place pile. And the cable-stayed base is detachably connected with the embedded part. Before the cast-in-place pile is cast, the embedded part is positioned in advance and embedded into the pile body, and damage to the pile body structure caused by drilling in a traditional process is avoided. The embedded part serves as a transition component between the cast-in-place pile and the cable-stayed base, the load of the upper support is directly transmitted to the core area of the cast-in-place pile, and the problem of local stress concentration caused by traditional bolt connection or hoop locking is solved. Through integrated design of the embedded part and modular installation of the cable-stayed base, parallel processes are achieved, the concrete curing waiting period is shortened, synchronous forming of the embedded part and the cast-in-place pile is achieved, and the construction period is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic engineering technology, specifically a fixing structure for a flexible photovoltaic support. Background Technology

[0002] In recent years, with the rapid development of photovoltaic power generation technology, flexible photovoltaic (PV) supports have been widely used in distributed PV power stations due to their advantages such as lightweight design, adaptability to complex terrain, and adjustability. Among the fixing technologies for flexible PV supports, the combination of cast-in-place piles and metal bases is currently one of the mainstream support solutions. This structure can fully utilize the stability effect of the self-weight of the concrete cast-in-place piles in soft soils such as silty clay, as well as the fixing effect of the metal base in the anchoring structure.

[0003] The typical construction process for the above structure is as follows: First, the cast-in-place piles are poured and formed on site. After the concrete reaches the design strength, installation holes are opened on the top or side wall of the cast-in-place piles using drilling equipment. Then, the metal base is fixed to the cast-in-place piles by bolt connection or metal clamp locking, and finally the installation of the upper support structure is achieved.

[0004] However, this traditional fixing method has significant technical drawbacks: when drilling into pre-formed cast-in-place piles, the vibration and stress concentration generated during drilling can easily lead to micro-cracks inside the pile, weakening its bearing capacity. This is especially problematic in soft soil foundations or high wind pressure areas, potentially causing pile fracture and other safety hazards. Cast-in-place piles require multiple independent processes, including pouring, curing, drilling, and installation, with mandatory waiting periods between each stage (such as concrete curing periods), making it difficult to effectively connect the construction process. Utility Model Content

[0005] The purpose of this invention is to provide a fixing structure for a flexible photovoltaic bracket to solve the problems mentioned in the prior art.

[0006] A fixing structure for a flexible photovoltaic bracket is provided, comprising:

[0007] Cast-in-place piles;

[0008] The embedded part, wherein at least a portion of the embedded part is disposed inside the cast-in-place pile;

[0009] The inclined base is detachably connected to the embedded part.

[0010] Furthermore, a reinforcing cage is embedded within the cast-in-place pile, and several reinforcing bars at the ends of the cage are welded to embedded parts. The installation of a reinforcing cage inside the cast-in-place pile, with the reinforcing bars at its ends welded to the embedded parts, forms an integral load-bearing structure of reinforcing bars, embedded parts, and concrete. This structure enhances the connection strength between the embedded parts and the cast-in-place pile, avoiding insufficient tensile strength of the concrete that might result from relying solely on the concrete bond force when the embedded parts are under stress, thus improving the overall structure's pull-out resistance and seismic performance.

[0011] Furthermore, the embedded part has a hollow structure, and its internal cavity is connected to the cast-in-place pile. The hollow structure of the embedded part, with its internal cavity connected to the cast-in-place pile, allows concrete to flow into the embedded part during pouring, forming a monolithic cast-in-place structure. The interior of the embedded part is filled with concrete, which reduces the amount of metal material used, improves the bond between the embedded part and the cast-in-place pile, avoids delamination problems caused by material differences, and enhances overall rigidity and load-bearing capacity.

[0012] Furthermore, a connector is provided between the embedded part and the inclined base, and a detachable connection is made through the connector. The connector between the embedded part and the inclined base allows for a detachable connection rather than direct fixation. This enhances the installation flexibility of the flexible photovoltaic support, facilitates component adjustment and replacement, reduces the impact of installation errors on structural stability, and improves construction accuracy.

[0013] Furthermore, the connector includes a plurality of bolt holes, a flange, and a plurality of bolts. The bolt holes are arranged circumferentially along the embedded part. The inclined base is mounted on the flange, and the flange is connected to the bolt holes by a plurality of bolts. The flange provides a stable mounting base, and the bolt connection ensures the reliability and maintainability of the structure, while facilitating construction and standardized manufacturing, thus improving installation efficiency.

[0014] Furthermore, at least a portion of the bolt holes are structurally located inside the cast-in-place pile. This structure facilitates the direct transfer of internal forces to the cast-in-place pile through the bolts and bolt holes when the flange is under stress, directly transferring the load to the core area of ​​the cast-in-place pile and increasing the system's integration. The cast-in-place pile structure constrains the bolt holes, reducing potential deformation and improving the bolts' pull-out resistance.

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

[0016] 1. Before the cast-in-place pile is poured, the embedded parts are pre-positioned and embedded inside the pile body. A rigid connection is formed through the bond force of the hardened concrete and mechanical interlocking, thus avoiding the damage to the pile structure caused by drilling in traditional processes. The inclined base and the embedded parts are connected in a detachable manner, ensuring the flexibility of the inclined base installation and enabling rapid assembly through standardized interfaces, eliminating on-site drilling positioning errors. As a transitional component between the cast-in-place pile and the inclined base, the embedded parts directly transfer the load of the upper support to the core area of ​​the cast-in-place pile, avoiding the localized stress concentration problems caused by traditional bolt connections or clamp locking.

[0017] 2. By integrating the design of embedded parts and modularly installing the inclined base, the sequential process of "pouring-curing-drilling-installation" in the traditional process is optimized into a parallel process of "embedded part positioning-synchronous pouring-rapid assembly of the base", which reduces the waiting period for concrete curing, realizes the synchronous forming of embedded parts and cast-in-place piles, and shortens the construction cycle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this drawing or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this drawing. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the fixing structure of the flexible photovoltaic bracket.

[0020] In the diagram: 1. Cast-in-place pile; 11. Reinforcing cage; 2. Embedded part; 3. Inclined base; 4. Connector; 41. Bolt hole; 42. Flange; 43. Bolt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0022] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0023] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0024] Please see Figure 1 As shown in the embodiment of this utility model, a fixing structure for a flexible photovoltaic support includes a cast-in-place pile 1, an embedded part 2, and a inclined base 3. At least a portion of the embedded part 2 is disposed inside the cast-in-place pile 1. The inclined base 3 and the embedded part 2 are detachably connected.

[0025] The cast-in-place pile 1 is formed by concrete pouring. Before pouring the cast-in-place pile 1, the embedded part 2 is pre-positioned and embedded into the part of the pile body to be formed. After the concrete has solidified and gained initial strength, the cast-in-place pile 1 and the embedded part 2 are poured synchronously. A rigid connection is formed by the bond force of the solidified concrete and the mechanical interlocking action. The embedded part 2 is a metal connection structure used to fix the inclined base 3. It achieves modular installation through standardized interfaces, eliminating the need for subsequent drilling and completely eliminating the risk of micro-cracks in the pile body caused by vibration and stress concentration. This significantly improves the long-term load-bearing stability of the cast-in-place pile 1, especially suitable for soft soil foundations or high wind pressure scenarios. The fixing structure, through the integrated design of the embedded part 2 and the cast-in-place pile 1 and the detachable connection structure between the embedded part 2 and the inclined base 3, achieves non-destructive construction and rapid assembly while ensuring load-bearing performance, realizing the efficient deployment and long-term stable operation of the flexible photovoltaic support.

[0026] A reinforcing cage 11 is installed inside the cast-in-place pile 1, and several reinforcing bars at the ends of the reinforcing cage 11 are welded to the embedded parts 2 to form an integral load-bearing structure. The welding of the reinforcing cage 11 to the embedded parts 2 enhances the connection strength between the embedded parts 2 and the cast-in-place pile 1, avoiding the problem of insufficient tensile strength caused by relying solely on the concrete bond force, and is suitable for mountainous environments with large wind and seismic loads.

[0027] The embedded part 2 adopts a hollow structure, with its internal cavity connected to the cast-in-place pile 1. This allows concrete to flow into the embedded part 2 during pouring, forming a monolithic cast-in-place structure. The hollow structure design reduces the amount of metal materials used, lowering costs. The concrete filling of the embedded part 2 enhances the bond between it and the cast-in-place pile 1, preventing delamination. The monolithic cast-in-place structure improves the load-bearing capacity and overall rigidity of the embedded part 2, making it suitable for high-load conditions.

[0028] A connector 4 is installed between the embedded part 2 and the inclined base 3, allowing for a detachable connection between the two. The design of the connector 4 enhances installation flexibility and facilitates component adjustment and replacement. The detachable connection reduces the impact of installation errors on structural stability and improves construction accuracy.

[0029] Specifically, the connector 4 includes several bolt holes 41, a flange 42, and several bolts 43. The bolt holes 41 are arranged circumferentially along the embedded part 2. The inclined base 3 is mounted on the flange 42, and the flange 42 is connected to the bolt holes 41 by bolts 43. The flange 42 provides a stable mounting base, ensuring the installation accuracy and stability of the inclined base 3. Standardized design and manufacturing improve installation efficiency and reduce construction difficulty.

[0030] Bolt holes 41 are at least partially located inside the cast-in-place pile 1, allowing the internal forces on the flange 42 to be directly transferred to the cast-in-place pile 1 through the bolts 43 and bolt holes 41 when the flange 42 is under stress. The connection between the bolt holes 41 and the cast-in-place pile 1 directly transfers the load to the core area of ​​the pile 1, improving the system's integration and stability. The cast-in-place pile 1 constrains the bolt holes 41, reducing their deformation and improving the pull-out resistance of the bolts 43. This design optimizes the load transfer path and enhances the overall structure's wind and earthquake resistance.

[0031] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A fixing structure for a flexible photovoltaic bracket, characterized in that, include: Cast-in-place pile (1); Embedded component (2), wherein at least a portion of the embedded component (2) is disposed inside the cast-in-place pile (1); The inclined base (3) is detachably connected to the embedded part (2).

2. The fixing structure of a flexible photovoltaic bracket according to claim 1, characterized in that, The cast-in-place pile (1) is equipped with a steel cage (11), and several steel bars at the ends of the steel cage (11) are welded to the embedded parts (2).

3. The fixing structure of a flexible photovoltaic bracket according to claim 1, characterized in that, The embedded part (2) is a hollow structure, and the internal cavity of the embedded part (2) is connected to the grouting pile (1).

4. The fixing structure of a flexible photovoltaic bracket according to claim 1, characterized in that, A connector (4) is provided between the embedded part (2) and the inclined base (3) and they are detachably connected through the connector (4).

5. The fixing structure of a flexible photovoltaic bracket according to claim 4, characterized in that, The connector (4) includes several bolt holes (41), a flange (42) and several bolts (43). The bolt holes (41) are arranged around the circumference of the embedded part (2). The inclined base (3) is set on the flange (42). The flange (42) and the bolt holes (41) are connected by several bolts (43).

6. The fixing structure of a flexible photovoltaic bracket according to claim 5, characterized in that, At least a portion of the bolt hole (41) is located inside the cast-in-place pile (1).

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