Weather-proof steel pipe pile structure applied to mountain photovoltaic project

Abstract

The utility model relates to the technical field of photovoltaic installation, in particular to a weather-proof steel pipe pile structure applied to mountain photovoltaic projects, which comprises a reserved pile at the top end of a steel pipe pile and a support stand column inserted into an inner hole of the reserved pile. The longitudinal seams divide the upper end of the reserved pile into a plurality of overhanging claws with certain elasticity, and the reserved pile is provided with an external thread at a certain distance on the lower side of the reserved seam; the locking sleeve is arranged on the reserved pile and the support stand column in a penetrating and sleeving mode, the lower end of the inner hole wall of the locking sleeve is matched with the outer threads in a screwing mode through the inner threads, a big-end-down conical face is manufactured at the upper end of the inner hole wall of the locking sleeve, and when the locking sleeve is screwed downwards, the conical face extrudes the outer side of the overhanging claw to enable the overhanging claw to contract inwards by a certain distance. The inner sides of the overhanging claws abut against the outer wall of the support stand column.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic installation technology, specifically to a weather-resistant steel pipe pile structure applied to mountain photovoltaic projects. Background Technology

[0002] As the construction of photovoltaic power stations gradually expands, high-quality land resources with good sunlight conditions, superior geographical conditions, and low construction costs are becoming increasingly scarce. Therefore, areas with less favorable construction conditions, such as mountains and lakes, are gradually becoming important resources for building photovoltaic power stations.

[0003] In mountainous photovoltaic projects, due to the constraints of transportation conditions in mountainous areas, steel pipe piles, which are relatively easy to construct, are currently mostly used as the installation foundation for photovoltaic supports. After the steel pipe piles are driven into the soil according to design requirements, the support columns for the photovoltaic panels are inserted into the pre-reserved piles at the upper end of the steel pipe piles. In existing technology, multiple holes are drilled on both the support columns and the pre-reserved piles, and the bolts are passed through the holes on the pre-reserved piles and then tightened into the holes on the support columns. In actual installation, the step of aligning the inner and outer holes and inserting the bolts often takes a lot of time, and inexperienced operators need two people to complete the task, which affects construction efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a weather-resistant steel pipe pile structure for use in mountain photovoltaic projects, thereby effectively improving construction efficiency.

[0005] The technical solution of this utility model is:

[0006] A weather-resistant steel pipe pile structure for use in mountain photovoltaic projects includes a reserved pile at the top of the steel pipe pile and a support column inserted into its inner hole. The top of the reserved pile has several evenly distributed longitudinal slits, which divide the upper end of the reserved pile into several cantilever claws with a certain elasticity. The reserved pile has external threads at a certain distance below the reserved slits.

[0007] The locking sleeve is fitted onto the reserved pile and the support column. The lower end of its inner wall is screwed into the external thread through the internal thread. The upper end of its inner wall has a tapered surface that is smaller at the top and larger at the bottom. When the locking sleeve is screwed down, the tapered surface presses against the outer side of the cantilever claw, causing it to contract inward by a certain distance. The inner side of the cantilever claw abuts against the outer wall of the support column.

[0008] In a further embodiment, the outer wall of the reserved pile is provided with an inwardly recessed groove, and the locking sleeve is provided with a screw hole corresponding to the groove. After the locking bolt is screwed into the screw hole, its inner end is inserted into the groove.

[0009] In a further embodiment, bevels are formed on both the inner and outer sides of the upper end of the cantilever claw.

[0010] In a further embodiment, the outer wall of the locking sleeve is provided with a cutting surface or hexagonal head that facilitates tool clamping.

[0011] In a further embodiment, the through hole at the upper end of the locking sleeve and the support column are in clearance fit.

[0012] In a further embodiment, the inner hole of the reserved pile and the paper part of the support column are in clearance fit.

[0013] In a further embodiment, the steel pipe piles are made of high-strength weather-resistant steel.

[0014] Compared with the prior art, this utility model has the following advantages: 1. This utility model uses the conical surface of the locking sleeve to squeeze the cantilever claw, so that it hugs the support column inward, resulting in good fastening effect and high working efficiency; 2. When the locking sleeve is tightened in place, the screw hole on it naturally aligns with the groove, and the locking bolt can be accurately inserted into the groove to realize the limiting of the locking sleeve, making the operation more convenient.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the locking sleeve when it squeezes the cantilever claw to make it grip the support column in this embodiment of the utility model.

[0019] In the diagram: 1. Reserved pile; 2. Support column; 3. Locking sleeve; 4. Groove; 5. Longitudinal seam; 6. Cantilever claw; 7. Conical surface; 8. Locking bolt; 9. Screw hole; 10. Internal thread. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "vertical", "horizontal", "top", and "bottom" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1 As shown in the figure, this embodiment provides a weather-resistant steel pipe pile structure for mountain photovoltaic projects, including a reserved pile 1 at the top of the steel pipe pile and a support column 2 inserted into its inner hole. The inner hole of the reserved pile 1 and the support column 2 are clearance-fitted. The top of the reserved pile 1 has several evenly distributed longitudinal slits 5, which divide the upper end of the reserved pile 1 into several cantilever claws 6. These cantilever claws 6 have a certain length and thus a certain degree of elasticity, and can swing to a certain extent in the radial direction of the reserved pile 1. In addition, the reserved pile 1 has an external thread at a certain distance below the reserved slits.

[0024] In this embodiment, the locking sleeve 3 is used to press the cantilever claw 6, causing it to deform inward and hug the support column 2 to achieve the insertion of the support column 2 and the reserved pile 1. The locking sleeve 3 is sleeved on the reserved pile 1 and the support column 2. The through hole at the upper end of the locking sleeve 3 is clearance-fitted with the support column 2. The lower end of the inner wall of the locking sleeve 3 is screwed into the external thread through the internal thread 10. The upper end of the inner wall of the locking sleeve 3 (below the through hole) is provided with a tapered surface 7 that is smaller at the top and larger at the bottom. When the locking sleeve 3 is screwed down, the tapered surface 7 presses the outer side of the cantilever claw 6, causing it to contract inward by a certain distance. The inner side of the cantilever claw 6 abuts against the outer wall of the support column 2, and multiple cantilever claws 6 hug the support column 2 together.

[0025] To prevent the locking sleeve 3 from loosening and retracting, the outer wall of the reserved pile 1 is provided with a groove 4 that is recessed inward. The locking sleeve 3 is provided with a screw hole 9 corresponding to the groove 4. The position of the screw hole 9 is preset so that when the locking sleeve 3 is tightened into place, the inner end of the locking bolt 8 is inserted into the groove 4 after being screwed into the screw hole 9.

[0026] like Figure 2 As shown, the inner and outer sides of the upper end of the cantilever claw 6 are both provided with bevels, which can increase the contact area between the cantilever claw 6 and the conical surface 7 and the support column 2, and avoid the phenomenon of jamming during the locking process caused by the cantilever claw 6 making line contact with the two.

[0027] To facilitate operators in tightening the locking sleeve 3, the outer wall of the locking sleeve 3 is provided with a cutting surface or hexagonal head that is conducive to tool clamping.

[0028] In this embodiment, the steel pipe piles need to be driven into the soil of the mountain. In order to improve their weather resistance and ensure their service life, the steel pipe piles are made of high-strength weather-resistant steel.

[0029] The working principle of this embodiment is as follows: the locking sleeve 3 is put onto the support column 2, and then the support column 2 is inserted into the reserved pile 1 for a predetermined length. After stabilizing the support column 2, the locking sleeve 3 is pre-rotated. Then, the locking sleeve 3 is tightened into place using a tool. The conical surface 7 squeezes the cantilever claw 6 to make it retract inward, thereby gripping the support column 2. Finally, the locking bolt 8 is screwed into the screw hole 9. After being screwed into place, the inner section of the locking bolt 8 is inserted into the groove 4. The locking bolt 8 can prevent the locking sleeve 3 from retracting upward.

[0030] The above description is merely a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A weather-resistant steel pipe pile structure for use in mountain photovoltaic projects, comprising a reserved pile (1) at the top of the steel pipe pile and a support column (2) inserted into its inner hole, characterized in that, The top of the reserved pile (1) is provided with several evenly distributed longitudinal slots (5), the longitudinal slots (5) divide the upper end of the reserved pile (1) into several cantilever claws (6) with a certain elasticity, and the reserved pile (1) has external threads at a certain distance below the reserved slots. The locking sleeve (3) is fitted onto the reserved pile (1) and the support column (2). The lower end of its inner hole wall is screwed into the external thread through the internal thread (10). The upper end of its inner hole wall is made of a conical surface (7) that is smaller at the top and larger at the bottom. When the locking sleeve (3) is screwed down, the conical surface (7) squeezes the outer side of the cantilever claw (6) so that it contracts inward by a certain distance. The inner side of the cantilever claw (6) abuts against the outer wall of the support column (2).

2. The weathering steel pipe pile structure for mountain photovoltaic projects according to claim 1, characterized in that, The outer wall of the reserved pile (1) has a groove (4) that is recessed inward. The locking sleeve (3) has a screw hole (9) corresponding to the groove (4). After the locking bolt (8) is screwed into the screw hole (9), its inner end is inserted into the groove (4).

3. The weathering steel pipe pile structure for mountain photovoltaic projects according to claim 1, characterized in that, The upper end of the cantilever claw (6) has beveled openings on both the inner and outer sides.

4. The weathering steel pipe pile structure for mountain photovoltaic projects according to claim 1, characterized in that, The outer wall of the locking sleeve (3) is provided with a cutting surface or hexagonal head that is conducive to tool clamping.

5. A weathering steel pipe pile structure for mountain photovoltaic projects according to claim 1, characterized in that, The through hole at the upper end of the locking sleeve (3) and the support column (2) are in clearance fit.

6. The weathering steel pipe pile structure for mountain photovoltaic projects according to claim 1, characterized in that, The inner hole of the reserved pile (1) and the paper part of the support column (2) are in clearance fit.

7. A weathering steel pipe pile structure for mountain photovoltaic projects according to any one of claims 1-6, characterized in that, The steel pipe piles are made of high-strength weather-resistant steel.

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