High-strength weather-proof spiral steel pipe pile structure for photovoltaic support

Abstract

The utility model relates to the technical field of photovoltaic ground piles, in particular to a high-strength weather-proof spiral steel pipe pile structure for a photovoltaic support, which comprises a steel pipe pile body with spiral blades, the upper section of the steel pipe pile body is sleeved with a stabilizing ring, the stabilizing ring is provided with an inner ring and an outer ring, and the inner ring and the outer ring are connected together through a plurality of rib plates. The inner diameter of the inner ring is larger than the outer diameter of the upper section, so that a gap is formed between the inner ring and the upper section, and the conical surface sleeve is jacked into the gap and extrudes the upper section and the inner ring, so that the stabilizing ring is fastened on the upper section.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic ground pile technical field, concretely relates to a high -strength weather -resistant spiral steel pipe pile structure for photovoltaic support. BACKGROUND

[0002] The photovoltaic ground pile is the installation foundation commonly used by the photovoltaic array support, mainly has these kinds of spiral steel pipe pile, precast pile, cast -in -place pile, is the important component of guaranteeing the safe, normal operation of photovoltaic power station.

[0003] In the engineering practical application, for the station of traffic inconvenience (for example mountain photovoltaic), mainly adopt the spiral steel pipe pile that does not need earthwork excavation, the construction fast. The bearing capacity of spiral steel pipe pile is mainly provided by the interaction of pile body and soil, due to having spiral blade, its axial compression resistance and pullout performance are good, but due to the smaller pipe diameter, its horizontal bearing capacity is relatively weak, increase the steel pipe diameter of pile body can effectively improve the horizontal bearing capacity, but the diameter of steel pipe pile is increased, and the steel cost is obviously increased, and the difficulty when drilling into the soil is also improved.

[0004] In addition, the soil in each region is different, for example, the geological alkalinity and corrosion of coastal mountain is more serious, the traditional spiral steel pipe pile is plated with a layer of anticorrosion material on the outer pipe wall to improve the weather resistance (for example, galvanizing), but the plating thickness is extremely limited, and the plating layer is also easy to be locally damaged in the process of drilling into the soil, and the weather resistance still has room for improvement. INVENTION CONTENTS

[0005] The utility model aims at overcoming the deficiencies in the background art, providing a high -strength weather -resistant spiral steel pipe pile structure for photovoltaic support, aiming at improving the horizontal bearing capacity and weather resistance.

[0006] The technical scheme of the utility model is:

[0007] A high -strength weather -resistant spiral steel pipe pile structure for photovoltaic support, including the steel pipe pile body with spiral blade, the upper section of the steel pipe pile body is provided with a stabilizing ring, the stabilizing ring has an inner ring and an outer ring, the inner ring and the outer ring are connected together through a plurality of rib plates, the inner diameter of the inner ring is greater than the outer diameter of the upper section, so that a gap is formed between the inner ring and the upper section, the conical surface sleeve is inserted into the gap and extruded on the upper section and the inner ring, so that the stabilizing ring is fastened on the upper section.

[0008] In a further scheme, the conical surface sleeve is spliced from two halves, and the end faces of the two halves are kept a certain distance apart.

[0009] In a further scheme, the conical surface sleeve is in the shape of large at the top and small at the bottom, and the top has an outwardly extending skirt.

[0010] In a further aspect, the inner ring and the outer ring of the stabilizing ring are coaxially arranged.

[0011] In a further aspect, the steel pipe pile body has an upper section and a lower section, the diameter of the upper section is larger than that of the lower section, and the upper section and the lower section are connected by a transition section.

[0012] In a further aspect, the steel pipe pile body, the stabilizing ring and the conical sleeve are made of high-strength weather-resistant steel.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model indirectly enlarges the diameter of the upper section of the steel pipe pile body by the stabilizing ring, increases the interaction area of the steel pipe pile body and the soil, and can effectively improve the horizontal bearing capacity of the steel pipe pile body; the enlarged diameter of the upper section can further improve the horizontal bearing capacity; the split design of the stabilizing ring, the conical sleeve and the steel pipe pile body can reduce the interference of the steel pipe pile during piling; in the actual construction operation process, the high-strength weather-resistant steel does not need to be plated, and the wear of the surface of the plating layer of the traditional steel pipe pile after being drilled into the soil layer is avoided.

[0014] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the utility model embodiment, it should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0016] Figure 1 It is one of the structure schematic diagram of the utility model embodiment, and the stabilizing ring is not pressed into the soil layer.

[0017] Figure 2 It is the second structure schematic diagram of the utility model embodiment, and the stabilizing ring is pressed into the soil layer and is pressed tightly by the conical sleeve.

[0018] Figure 3 It is the installation relationship schematic diagram between the stabilizing ring, the conical sleeve and the steel pipe pile body in the utility model embodiment.

[0019] In the drawing: soil layer 1, steel pipe pile body 2, upper section 2.1, transition section 2.2, lower section 2.3, spiral blade 2.4, stabilizing ring 3, outer ring 3.1, rib plate 3.2, inner ring 3.3, conical sleeve 4, skirt 4.1. DETAILED DESCRIPTION

[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, this embodiment provides a high-strength and weather-resistant helical steel pipe pile structure for photovoltaic support, including a steel pipe pile body 2 with helical blades 2.4. The steel pipe pile body 2 has an upper section 2.1 and a lower section 2.3. The diameter of the upper section 2.1 is larger than the diameter of the lower section 2.3. The upper section 2.1 and the lower section 2.3 are connected by a transition section 2.2. The helical blades 2.4 are disposed on the outer wall of the lower section 2.3.

[0024] To improve the horizontal bearing capacity, a stabilizing ring 3 is fitted onto the upper section 2.1 of the steel pipe pile body 2. For example... Figure 1 , Figure 3 As shown, the stabilizing ring 3 has an inner ring 3.3 and an outer ring 3.1 arranged coaxially. The inner ring 3.3 and the outer ring 3.1 are connected together by three ribs 3.2. The inner ring 3.3, the ribs 3.2, and the outer ring 3.1 all have a certain axial length. The inner diameter of the inner ring 3.3 is larger than the outer diameter of the upper section 2.1, thus forming an annular gap between the inner wall of the inner ring 3.3 and the outer wall of the upper section 2.1. A conical sleeve 4 is inserted into this gap and presses against the upper section 2.1 and the inner ring 3.3, using the pressing action to fasten the stabilizing ring 3 to the upper section 2.1. Generally, the conical sleeve 4 is an outer conical surface. In order to make the connection between the stabilizing ring 3 and the upper section 2.1 more stable, the length of the conical sleeve 4 needs to be greater than half the length of the inner ring 3.3.

[0025] The conical sleeve 4 is large at the top and small at the bottom, and since the conical sleeve 4 needs to simultaneously apply extrusion to the upper section 2.1 and the stabilizing ring 3, if it is made into an integrated structure, the matching precision requirement between the conical sleeve 4 and the upper section 2.1 is too high, so in the embodiment, the conical sleeve 4 is spliced by two halves, and the end faces of the two halves are kept a certain distance, and after being inserted into the gap, the two halves can use the depth of insertion to ensure that the upper section 2.1 and the stabilizing ring 3 can be simultaneously extruded.

[0026] In order to facilitate the mechanical equipment or manual use of tools to top the conical sleeve 4 into the gap, the top of the conical sleeve 4 has an outwardly extending skirt 4.1. The upper section 2.1 of the steel pipe pile body 2 and the photovoltaic support use a plug-in structure, which facilitates the sleeve of the stabilizing ring 3 from the upper end.

[0027] The steel pipe pile body 2, the stabilizing ring 3 and the conical sleeve 4 are all made of high-strength weather-resistant steel, and can have good strength and weather resistance without plating.

[0028] The embodiment is provided with the stabilizing ring 3 and the conical sleeve 4, and the horizontal bearing capacity of the steel pipe pile can be improved with a small amount of steel.

[0029] The working principle of the embodiment is as follows: as shown in Figure 1 , Figure 2 The steel pipe pile body 2 is normally piled to the elevation by using a piling device, the stabilizing ring 3 is sleeved on the upper end of the steel pipe pile body 2, then the two halves of the conical sleeve 4 are pre-inserted into the gap, then the stabilizing ring 3 is pressed into the soil layer 1 to a certain depth by using the piling device or manually, in this process, the conical sleeve 4 can reduce the eccentricity of the stabilizing ring 3 to a certain extent, then the conical sleeve 4 is tightly topped down by using a tool, so that the stabilizing ring 3 is tightly fastened on the upper section 2.1, and the top of the stabilizing ring 3 does not exceed the soil layer 1.

[0030] The above only describes the preferred embodiments of the present application, and those skilled in the art can make various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-strength weather-resistant spiral steel pipe pile structure for photovoltaic support, comprising a steel pipe pile body (2) with spiral blades (2.4), characterized in that: The upper section (2.1) of the steel pipe pile body (2) is sleeved with a stabilizing ring (3), the stabilizing ring (3) has an inner ring (3.3) and an outer ring (3.1), the inner ring (3.3) and the outer ring (3.1) are connected together through a plurality of rib plates (3.2), the inner diameter of the inner ring (3.3) is greater than the outer diameter of the upper section (2.1), so that a gap is formed between the inner ring (3.3) and the upper section (2.1), a tapered sleeve (4) is inserted into the gap and extrudes the upper section (2.1) and the inner ring (3.3), so that the stabilizing ring (3) is fastened to the upper section (2.1).

2. A high-strength weather-resistant spiral steel pipe pile structure for a photovoltaic support according to claim 1, characterized in that, The tapered sleeve (4) is spliced by two halves, and the end faces of the two halves are kept a certain distance apart.

3. The high-strength weather-resistant spiral steel pipe pile structure for photovoltaic support according to claim 2, characterized in that, The tapered sleeve (4) is in the shape of large at the top and small at the bottom, and the top portion has an outwardly extending skirt (4.1).

4. The high-strength weather-resistant spiral steel pipe pile structure for photovoltaic support according to claim 3, characterized in that, The inner ring (3.3) and the outer ring (3.1) of the stabilizing ring (3) are coaxially arranged.

5. The high-strength weather-resistant spiral steel pipe pile structure for photovoltaic support according to claim 4, characterized in that, The steel pipe pile body (2) has an upper section (2.1) and a lower section (2.3), the diameter of the upper section (2.1) is greater than the diameter of the lower section (2.3), and the two sections are connected by a transition section (2.2).

6. A high-strength weather-resistant spiral steel pipe pile structure for a photovoltaic support according to any one of claims 1-5, characterized in that, The steel pipe pile body (2), the stabilizing ring (3) and the tapered sleeve (4) are all made of high-strength weather-resistant steel.

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