Photovoltaic power generation pipe pile fixing end plate

Abstract

The utility model provides a photovoltaic power generation tubular pile fixing end plate which comprises an end plate body, a plurality of mounting holes formed in the circumferential direction of the end plate body, a plurality of fan-shaped grooves formed in the circumferential direction of the bottom face of the end plate body, an annular groove formed in the outer side of the upper end of the end plate body and a tubular pile through hole formed in the center of the end plate body. According to the scheme, the annular groove and the fan-shaped grooves are reasonably formed in the end plate body, concentrated stress of a traditional plane end plate is converted into dispersed distribution through geometric shape optimization, stress transition areas are formed on the edges of the fan-shaped grooves when loads are borne, stress is prevented from being excessively concentrated in a local area, and therefore the stability of the end plate is improved. Therefore, material fatigue damage risks are reduced, and the service life of the end plate is remarkably prolonged.

Description

Photovoltaic power generation pipe pile fixed end plate Technical Field

[0001] This utility model relates to the field of photovoltaic power generation pipe pile end plate technology, specifically to a photovoltaic power generation pipe pile fixed end plate. Background Technology

[0002] The manufacturing process of traditional photovoltaic (PV) power generation pipe pile end plates has long relied on multiple milling, drilling, and cutting processes on the raw material spiral steel strip. Traditional end plate designs typically employ a planar structure, resulting in a single contact surface with the pipe pile. This leads to insufficient adhesion between the end plate and the pipe pile under complex conditions such as wind loads and earthquakes, making them prone to pull-out or loosening. When bearing loads, the lack of stress dispersion design makes the end plate susceptible to stress concentration at mounting holes and edges, leading to material fatigue or fracture. Particularly under long-term cyclic loading, microcracks are prone to appear at the connection between the end plate and the pipe pile, reducing the structural lifespan. Summary of the Invention

[0003] The photovoltaic power generation pipe pile fixing end plate provided by this utility model solves the problem of material fatigue fracture caused by stress concentration in the pipe pile end plate in the prior art.

[0004] To address the aforementioned issues, this utility model provides a fixed end plate for photovoltaic power generation pipe piles, comprising: an end plate body, a plurality of mounting holes circumferentially disposed on the end plate body, a plurality of fan-shaped grooves circumferentially distributed on the bottom surface of the end plate body, an annular groove on the outer side of the upper end of the end plate body, and a pipe pile through hole at the center of the end plate body. Through the above solution, the annular groove and multiple fan-shaped grooves rationally arranged on the end plate body, through geometric optimization, transform the concentrated stress of traditional planar end plates into a dispersed distribution. When bearing load, the edge of the fan-shaped groove forms a stress transition zone, avoiding excessive stress concentration in local areas, thereby reducing the risk of material fatigue damage and significantly extending the service life of the end plate.

[0005] According to one embodiment of this utility model, the mounting hole includes an internally threaded through hole that mates with a bolt. The internally threaded through hole is connected to a round-headed strip hole. The round-headed strip hole has a countersunk hole above one end with a round head. With the above solution, the setting of the round-headed strip hole allows the bolt to be precisely fixed at the internally threaded through hole during installation, and it can also be adjusted within a certain range along the length of the round-headed strip hole. The round-headed strip hole provides a certain margin of error, reducing the requirements for the machining accuracy of the end plate and other connecting components, as well as the positioning accuracy during installation. It avoids the additional stress generated by forced assembly and improves construction efficiency and installation accuracy.

[0006] According to one embodiment of this utility model, 6 to 10 mounting holes are evenly distributed around the circumference. With this solution, when the pipe pile is subjected to external loads from different directions, such as wind force, seismic force, or its own weight, the mounting holes can evenly distribute the force to the connection between the pipe pile end plate and the connecting component. Each mounting hole bears a part of the force, avoiding the situation where excessive local force leads to connection failure or end plate deformation. This greatly enhances the stability and reliability of the connection between the pipe pile end plate and other components, ensuring the safe operation of the entire photovoltaic power generation system in complex environments.

[0007] According to one embodiment of this utility model, the aforementioned fan-shaped grooves are evenly distributed between the two mounting holes. Through this scheme, the evenly distributed fan-shaped grooves form a structural effect similar to reinforcing ribs on the end plate, increasing the local rigidity and strength of the end plate and making it less prone to deformation under load. Simultaneously, it coordinates the deformation between the two mounting holes, reducing end plate twisting or warping caused by uneven stress on the mounting holes, ensuring the overall stability of the end plate structure, and thus ensuring the reliability of the connection between the pipe pile and surrounding components.

[0008] According to one embodiment of the present invention, the edges of the aforementioned fan-shaped grooves are all rounded. Through the above scheme, the rounded transition can smoothly change the stress transmission direction, so that the stress is gradually dispersed at the edge, avoiding stress concentration, thereby improving the load-bearing capacity and fatigue resistance of the end plate and extending its service life.

[0009] According to one embodiment of the present invention, the side of the end plate body is provided with an inner groove. Through the above solution, bending stress is effectively resisted, making the end plate less prone to bending deformation when subjected to lateral force, thereby improving the overall bending resistance of the pipe pile and enhancing the stability of the structure.

[0010] According to one embodiment of the present invention, the groove depth of the above-mentioned inner groove is less than the groove depth of the fan-shaped groove and the groove depth of the annular groove, respectively. Through the above solution, the end plate can still retain a relatively large amount of material in the area where the inner groove is set, and avoid weakening the overall strength of the end plate due to excessive hollowing.

[0011] The technical advantages of this application are as follows:

[0012] The photovoltaic power generation pipe pile fixing end plate provided in this application has a reasonably set annular groove and multiple fan-shaped grooves on the end plate body. Through geometric optimization, the concentrated stress of the traditional planar end plate is transformed into a dispersed distribution. When bearing load, the edge of the fan-shaped groove forms a stress transition zone, avoiding excessive stress concentration in local areas, thereby reducing the risk of material fatigue damage and significantly extending the service life of the end plate. Attached Figure Description

[0013] Figure 1 is a structural schematic diagram of the spiral steel strip, the raw material for the end plate mentioned in the background art of this utility model.

[0014] Figure 2 is a schematic diagram of the overall structure of the fixed end plate of the photovoltaic power generation pipe pile provided by this utility model.

[0015] Figure 3 is a front view schematic diagram of the fixed end plate of the photovoltaic power generation pipe pile provided by this utility model.

[0016] Figure 4 is a rear view schematic diagram of the fixed end plate of the photovoltaic power generation pipe pile provided by this utility model.

[0017] Figure 5 is a schematic diagram of section AA in Figure 3 provided by this utility model.

[0018] Figure 6 is a schematic diagram of the structure of the photovoltaic power generation pipe pile fixed end plate provided by this utility model in Embodiment 2.

[0019] Figure 7 is a schematic diagram of the structure of the fixed end plate of the photovoltaic power generation pipe pile provided by this utility model in Embodiment 3.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. End plate body; 2. Mounting hole; 21. Internal threaded through hole; 22. Round-headed strip hole; 23. Countersunk hole; 3. Internal groove; 4. Fan-shaped groove; 5. Annular groove; 6. Pipe pile through hole. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to Figures 1-5. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0023] Example 1

[0024] Referring to Figures 1-5, this utility model provides a fixed end plate for photovoltaic power generation pipe piles, comprising: an end plate body 1, a plurality of mounting holes 2 disposed around the end plate body 1, a plurality of fan-shaped grooves 4 distributed around the bottom surface of the end plate body 1, an annular groove 5 disposed on the outer side of the upper end of the end plate body 1, and a pipe pile through hole 6 disposed at the center of the end plate body 1; through the above scheme, the annular groove 5 and the plurality of fan-shaped grooves 4 reasonably disposed on the end plate body 1, through geometric optimization, transform the concentrated stress of the traditional planar end plate into a dispersed distribution. When bearing load, the edge of the fan-shaped groove 4 forms a stress transition zone, avoiding excessive stress concentration in local areas, thereby reducing the risk of material fatigue damage and significantly extending the service life of the end plate.

[0025] The aforementioned mounting hole 2 includes an internally threaded through hole 21 that mates with a bolt. The internally threaded through hole 21 is connected to a round-headed strip hole 22. The round-headed strip hole 22 has a countersunk hole 23 above the round end. Through the above scheme, the setting of the round-headed strip hole 22 allows the bolt to be precisely fixed at the internally threaded through hole 21 during installation, and can also be adjusted within a certain range in the length direction of the round-headed strip hole 22. The round-headed strip hole 22 provides a certain margin of error, reduces the requirements for the machining accuracy of the end plate and other connecting components, as well as the positioning accuracy during installation, avoids the additional stress generated by forced assembly, and improves construction efficiency and installation accuracy.

[0026] The aforementioned mounting holes 2 are arranged in a circular pattern with 6 holes. Through this scheme, when the pipe pile is subjected to external loads from different directions, such as wind force, seismic force, or its own weight, the mounting holes 2 can evenly distribute the force to the connection between the pipe pile end plate and the connecting components. Each mounting hole 2 bears a part of the force, avoiding the situation where excessive local force leads to connection failure or end plate deformation. This greatly enhances the stability and reliability of the connection between the pipe pile end plate and other components, ensuring the safe operation of the entire photovoltaic power generation system in complex environments.

[0027] The aforementioned fan-shaped grooves 4 are evenly distributed between the two mounting holes 2. Through this design, the evenly distributed fan-shaped grooves 4 form a structural effect similar to reinforcing ribs on the end plate, increasing the local stiffness and strength of the end plate and making it less prone to deformation under load. At the same time, it coordinates the deformation between the two mounting holes 2, reducing the twisting or warping of the end plate caused by uneven stress on the mounting holes 2, ensuring the overall stability of the end plate structure, and thus ensuring the reliability of the connection between the pipe pile and surrounding components.

[0028] The edges of the aforementioned fan-shaped groove 4 are all rounded. Through this scheme, the rounded transition can smoothly change the stress transmission direction, so that the stress is gradually dispersed at the edge, avoiding stress concentration, thereby improving the load-bearing capacity and fatigue resistance of the end plate and extending its service life.

[0029] The end plate body 1 has an inner groove 3 on its side. Through the above scheme, bending stress is effectively resisted, making the end plate less prone to bending deformation when subjected to lateral force, thereby improving the overall bending resistance of the pipe pile and enhancing the stability of the structure.

[0030] The depth of the inner groove 3 is less than the depth of the fan-shaped groove 4 and the depth of the annular groove 5, respectively. Through the above scheme, the end plate can still retain a relatively large amount of material in the area where the inner groove 3 is set, so as to avoid weakening the overall strength of the end plate due to excessive hollowing.

[0031] Example 2

[0032] Based on the above embodiment one, the photovoltaic power generation pipe pile fixing end plate provided in this application also provides another embodiment, wherein the above-mentioned mounting holes 2 are evenly distributed in a circle with 8 holes. By setting 8 holes, it is suitable for more support systems and is used to improve the connection strength between the end plate and the support. Especially in areas with wind load or complex geological conditions, it is necessary to disperse stress to enhance pull-out resistance.

[0033] Example 3

[0034] Based on the above embodiment one, the photovoltaic power generation pipe pile fixing end plate provided in this application also provides another embodiment. The above-mentioned mounting holes 2 are evenly distributed in a circle with 10 holes. The 10-hole design increases the anchoring points, makes the load distribution more uniform, and reduces the risk of stress concentration in a single hole. In the application of PHC pipe piles in desert areas, the multi-hole design can improve the wind and sand resistance and prevent the pile body from breaking due to excessive local stress.

[0035] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A photovoltaic power generation pipe pile fixing end plate, characterized in that, include: The end plate body (1) has several mounting holes (2) around its circumference, several fan-shaped grooves (4) distributed around the bottom surface of the end plate body (1), an annular groove (5) on the outer side of the upper end of the end plate body (1), and a pipe pile through hole (6) at the center of the end plate body (1).

2. The photovoltaic power generation pipe pile fixing end plate according to claim 1, characterized in that, The mounting hole (2) includes an internal threaded through hole (21) that mates with a bolt. The internal threaded through hole (21) is connected to a round-headed strip hole (22). The round-headed strip hole (22) has a countersunk hole (23) above one of its round ends.

3. The photovoltaic power generation pipe pile fixing end plate according to claim 1, characterized in that, The mounting holes (2) are provided in 6 to 10 evenly distributed around the circumference.

4. The photovoltaic power generation pipe pile fixing end plate according to claim 3, characterized in that, The fan-shaped groove (4) is evenly distributed between the two mounting holes (2).

5. The photovoltaic power generation pipe pile fixing end plate according to claim 4, characterized in that, The edges of the fan-shaped groove (4) are all rounded.

6. The photovoltaic power generation pipe pile fixing end plate according to claim 1, characterized in that, The end plate body (1) has an inner groove (3) on its side.

7. The photovoltaic power generation pipe pile fixing end plate according to claim 6, characterized in that, The groove depth of the inner groove (3) is less than the groove depth of the fan-shaped groove (4) and the groove depth of the annular groove (5).

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