Diameter-variable photovoltaic support miniature steel pipe cast-in-place pile

Abstract

The utility model discloses a photovoltaic support miniature steel pipe cast-in-place pile with a variable diameter, and belongs to the technical field of photovoltaic support foundations. The photovoltaic support miniature steel pipe cast-in-place pile with the variable diameter comprises a pile body, a steel pipe, longitudinal steel bars, spiral stirrups and a connecting structure. The steel pipe comprises a first section used for being connected with a photovoltaic support foundation and a second section extending into the pile body. The spiral stirrup faces the interior of the photovoltaic support foundation, is used for accommodating the second section and is fixed on the second section through a connecting structure, and a certain distance is kept between the spiral stirrup and the inner surface of the second section; the longitudinal steel bars are fixed to the connecting structure according to the thickness of the steel bar protection layer so that the thickness of the steel bar protection layer can meet construction requirements. The problems that in the prior art, when the specification of a steel pipe is changed according to the requirement of an upper stand column, the pile diameter corresponding to the steel pipe is changed, and the thickness of a steel bar protection layer cannot meet the design requirement easily are effectively solved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to photovoltaic support foundation technical field, especially relate to a variable diameter's photovoltaic support micro -type steel pipe cast -in -place pile. BACKGROUND

[0002] Compared with water and electricity, wind power and nuclear power, solar power generation has no emission and noise, and the application technology is mature, safe and reliable. With the rapid development of photovoltaic industry, various forms of photovoltaic support and support foundation form appear. The form of photovoltaic support foundation needs to be supported by cast-in-place pile. Micro -type steel pipe cast -in -place pile is widely used in the form of photovoltaic support foundation because of its fast construction speed, simple process, no soil excavation and backfill, low engineering cost and short construction period.

[0003] In the prior art, the steel pipe part as the support foundation of the photovoltaic support is placed in the pile body of the cast-in-place pile, and the surface of the part placed in the pile body is directly welded with the steel bar. When the steel pipe changes the specification according to the requirement of the upper column, the pile diameter needs to be adapted. Because the type of the pile diameter is less in the prior art, and the pile diameter is not flexible, the thickness of the steel bar protection layer may not accurately meet the construction requirement. In addition, the thickness of the steel bar protection layer at the top of the pile body is large in the prior art, the thickness of the steel bar protection layer at the top of the pile body is different from that at the bottom, the stress of the pile body structure is uneven, and the quality of the construction is also affected. SUMMARY

[0004] The embodiment of the utility model provides a variable diameter's photovoltaic support micro -type steel pipe cast -in -place pile to solve the problem that the thickness of the steel bar protection layer is difficult to meet the design requirement when the steel pipe changes the specification according to the requirement of the upper column in the prior art.

[0005] The technical scheme adopted by the embodiment of the utility model is a variable diameter's photovoltaic support micro -type steel pipe cast -in -place pile, which comprises a pile body, a steel pipe, longitudinal steel bars, spiral stirrups and a connecting structure.

[0006] The steel pipe comprises a first section for connecting with the photovoltaic support foundation and a second section extending into the interior of the pile body.

[0007] The spiral stirrup faces the interior of the photovoltaic support foundation, is used for accommodating the second section, is fixed on the second section through the connecting structure and keeps a certain distance from the inner surface of the second section.

[0008] The longitudinal steel bars are fixed on the connecting structure according to the thickness of the steel bar protection layer, so that the thickness of the steel bar protection layer meets the construction requirement.

[0009] Further, the connecting structure comprises a connecting steel plate, the connecting steel plate is vertically fixed between the steel pipe and the spiral hoop, and is perpendicular to the surface of the steel pipe and the spiral hoop, so that the second section of the steel pipe and the spiral hoop are kept at a preset distance, and the longitudinal steel bars are fixed on the connecting steel plate according to the thickness of the steel bar protective layer.

[0010] Further, the connecting steel plate is provided in plurality, the plurality of connecting steel plates are arrayed around the axis of the steel pipe, and are vertically fixed between the steel pipe and the spiral hoop.

[0011] Further, the longitudinal steel bars are provided in plurality, and the number of the plurality of longitudinal steel bars is the same as the number of the plurality of connecting steel plates, and the plurality of longitudinal steel bars are fixed on the plurality of connecting steel plates in one-to-one correspondence.

[0012] Further, the top of the plurality of longitudinal steel bars is flush with the top of the spiral hoop, and the bottom of the plurality of longitudinal steel bars extends to the bottom of the pile body.

[0013] Further, the connecting steel plate is provided in six, and the longitudinal steel bars are also provided in six.

[0014] Further, the spiral hoop is gradually tightened along the pile body from top to bottom.

[0015] Further, the connecting structure further comprises a perforated wall reinforcing plate, the perforated wall reinforcing plate is fixed on the position of the first section of the steel pipe where the hole needs to be opened, and is used for thickening the first section of the steel pipe.

[0016] The beneficial effects of the utility model are: the utility model through connecting structure set the distance between spiral hoop and steel pipe, wherein connecting structure can change size according to the different pile diameter of need, the distance between spiral hoop and steel pipe is realized adjustable by the addition of connecting structure, when needing different size's pile diameter, through adjusting connecting structure can satisfy the requirement. After the steel pipe changes specification according to the demand of upper stand column, through the size-adjustable connecting structure, different design pile diameter demand can be adapted, and the flexible setting of longitudinal steel bar position makes the steel bar protective layer thickness of larger or smaller pile diameter be adapted to obtain the appropriate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the variable diameter photovoltaic support micro steel pipe cast-in-place pile structure schematic view provided by the utility model embodiment;

[0018] Figure 2 It is the variable diameter photovoltaic support micro steel pipe cast-in-place pile top view structure drawing provided by the utility model embodiment.

[0019] Fig. 1, pile body;2, steel pipe;21, first section;22, second section;3, longitudinal steel bar;4, spiral hoop;5, connecting structure;51, connecting steel plate;6, perforated wall reinforcing plate. DETAILED DESCRIPTION

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. Rather, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] This utility model provides a variable diameter photovoltaic support micro-steel pipe grouting pile, such as... Figure 1 As shown, the structure includes a pile body 1, a steel pipe 2, longitudinal reinforcing bars 3, spiral stirrups 4, and a connecting structure 5. The steel pipe 2 is vertically positioned above the pile body 1. Specifically, the steel pipe 2 includes a first section 21 for connecting to the photovoltaic support foundation, and a second section 22 extending into the pile body 1. The spiral stirrups 4 are vertically positioned inside the pile body 1, facing the photovoltaic support foundation, to accommodate the second section 22 of the steel pipe 2, and are fixed to the second section 22 of the steel pipe 2 by the connecting structure 5, maintaining a certain distance from the inner surface of the second section 22. The longitudinal reinforcing bars 3 are fixed to the connecting structure 5 according to the thickness of the reinforcing bar protective layer, so that the thickness of the reinforcing bar protective layer meets the construction requirements.

[0022] In this embodiment, the distance between the spiral stirrup 4 and the steel pipe 2 can be flexibly set through the connecting structure 5. The connecting structure 5 can be modified in size according to different pile diameters, making the distance between the spiral stirrup 4 and the steel pipe 2 adjustable. When the size of the steel pipe 2 changes, the pile diameter must also be adapted accordingly, and the thickness of the concrete cover must meet construction requirements. This embodiment can meet the requirements for various types and sizes of concrete cover thicknesses to accommodate different pile diameters through connecting structures 5 of different sizes.

[0023] The connecting structure 5 includes a connecting steel plate 51, such as Figure 2 As shown, the connecting steel plate 51 is vertically fixed between the steel pipe 2 and the spiral stirrup 4, and is perpendicular to the surface of the steel pipe 2 and the spiral stirrup 4, so that the second section 22 of the steel pipe 2 and the spiral stirrup 4 maintain a preset distance. The longitudinal steel bar 3 is fixed on the connecting steel plate 51 according to the thickness of the steel bar protective layer.

[0024] After the steel pipe 2 is modified according to the requirements of the upper column, it can adapt to different design pile diameter requirements through the adjustable connection structure 5. The flexible setting of the longitudinal steel bar 3 can adapt to the appropriate steel bar protective layer thickness regardless of whether the pile diameter is large or small.

[0025] like Figure 1 and Figure 2As shown, in this embodiment, multiple connecting steel plates 51 are arranged in an array around the axis of the steel pipe 2 and vertically fixed between the steel pipe 2 and the spiral stirrup 4. Through the array arrangement of multiple connecting steel plates 51, the spiral stirrup 4 is more firmly fixed to the steel pipe 2 through the connecting steel plates 51, and the pile body 1 is less likely to tilt during grouting.

[0026] like Figure 2 As shown, multiple longitudinal reinforcing bars 3 are provided, and the number is the same as the number of connecting steel plates 51. Each longitudinal reinforcing bar 3 is fixed to a corresponding connecting steel plate 51. A corresponding longitudinal reinforcing bar 3 is provided in the same direction on each connecting steel plate 51. Under the action of multiple longitudinal reinforcing bars 3, the spiral stirrups 4 are placed more stably in the pile body 1, so that the pile body 1 remains vertical when the pile body is poured.

[0027] In this embodiment, the tops of multiple longitudinal reinforcing bars 3 are flush with the tops of the spiral stirrups 4 before being fixed, and the bottoms of the multiple longitudinal reinforcing bars 3 extend into the pile body 1 to the bottom of the pile body 1. This arrangement ensures that the thickness of the reinforcing bar protective layer remains consistent throughout the pile body 1, effectively preventing uneven stress on the pile body 1 structure and thus avoiding problems that could affect construction quality.

[0028] In order to allow the coarse aggregate in the grout to pass through the gaps of the longitudinal reinforcing bars 3 better, in this embodiment, six connecting steel plates 51 are provided, and six longitudinal reinforcing bars 3 are also provided accordingly, thereby improving the quality of the pile foundation.

[0029] In this embodiment, the tightness of the spiral stirrups 4 gradually decreases from top to bottom along the pile body 1, further enhancing the vertical compressive bearing capacity of the pile body.

[0030] like Figure 1 As shown in this embodiment, the variable diameter photovoltaic bracket micro steel pipe grouting pile is also provided with a perforated wall reinforcing plate 6. The perforated wall reinforcing plate 6 is fixed at the position where the first section 21 of the steel pipe 2 needs to be drilled, and is used to thicken the first section 21 of the steel pipe 2 to improve the stability of the drilled part of the steel pipe 2.

Claims

1. A variable diameter photovoltaic support micro steel pipe cast pile, characterized by, The pile body (1), the steel pipe (2), the longitudinal steel bars (3), the spiral stirrups (4), and the connecting structure (5); The steel pipe (2) includes a first section (21) for connecting with a photovoltaic support foundation, and a second section (22) extending into the interior of the pile body (1); The spiral stirrups (4) are towards the interior of the photovoltaic support foundation, for accommodating the second section (22), and are fixed on the second section (22) through the connecting structure (5) and keep a certain distance from the inner surface of the second section (22); The longitudinal steel bars (3) are fixed on the connecting structure (5) according to the thickness of the steel bar protective layer, so that the thickness of the steel bar protective layer meets the construction requirements.

2. The variable diameter photovoltaic bracing micro steel pipe pile according to claim 1, wherein, The connecting structure (5) includes a connecting steel plate (51), which is vertically fixed between the steel pipe (2) and the spiral stirrups (4), and is perpendicular to the surface of the steel pipe (2) and the spiral stirrups (4), so that the second section (22) of the steel pipe (2) and the spiral stirrups (4) keep a predetermined distance, and the longitudinal steel bars (3) are fixed on the connecting steel plate (51) according to the thickness of the steel bar protective layer.

3. The variable diameter photovoltaic bracing micro steel pipe pile of claim 2, wherein, The connecting steel plate (51) is provided with a plurality of connecting steel plates (51) arranged around the axis of the steel pipe (2) and vertically fixed between the steel pipe (2) and the spiral stirrups (4).

4. The variable diameter photovoltaic bracing micro steel pipe pile of claim 3, wherein, The longitudinal steel bars (3) are provided with a plurality of longitudinal steel bars (3) and the number of the longitudinal steel bars (3) is the same as the number of the connecting steel plates (51), and the plurality of longitudinal steel bars (3) are fixed on the plurality of connecting steel plates (51) one by one.

5. The variable diameter photovoltaic bracing micro steel pipe pile of claim 4, wherein, The top of the plurality of longitudinal steel bars (3) is flush with the top of the spiral stirrups (4), and the bottom of the plurality of longitudinal steel bars (3) extends to the bottom of the pile body (1).

6. A variable diameter photovoltaic racking micro steel pipe pile according to claim 4 or 5, characterized in that, The connecting steel plate (51) is provided with six connecting steel plates (51), and the longitudinal steel bars (3) are also provided with six longitudinal steel bars (3).

7. The variable diameter photovoltaic bracing micro steel pipe pile of claim 1, wherein, The spiral stirrups (4) gradually decrease in the degree of tightening along the pile body (1) from top to bottom.

8. The variable diameter photovoltaic bracing micro steel pipe pile of claim 1, wherein, It also includes a pair of perforated wall reinforcement plates (6) fixed on the position of the first section (21) of the steel pipe (2) requiring perforation, for thickening the first section (21) of the steel pipe (2).

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