A cast-in-place pile of a photovoltaic support wind-resistant system

Abstract

The utility model relates to photovoltaic support technical field, concretely relates to a kind of pile of pouring of photovoltaic support wind-resistant system, it includes: anti-pulling steel pipe, its inside hollow to form the cavity for pouring concrete, the anti-pulling steel pipe is spaced apart with multiple communicating cavity's concrete flow hole of concrete flow hole in its outside along length direction;Ground anchor cable fixing part, it is set in the top of the anti-pulling steel pipe for connecting the ground anchor cable of wind-resistant system;Anti-pulling disc, it has multiple and interval setting in the outside of anti-pulling steel pipe along the length direction of anti-pulling steel pipe.The utility model is opened with concrete flow hole on the pipe wall of anti-pulling steel pipe, can enhance the cohesion of pile body and soil by pouring concrete, the setting of concrete flow hole both guarantees pouring quality, and will not weaken pile body strength, secondly, the interval distribution of anti-pulling disc can form multistage resistance, can play the role similar to "barb", can greatly improve anti-pulling resistance.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a grouting pile for a photovoltaic support wind-resistant system. Background Technology

[0002] Flexible photovoltaic systems use steel strands as the main load-bearing cables (main cables). The main cables are then fixed to the end supports, which are made of steel beams and side anchors. Since the main cables usually have a large span and the photovoltaic panels are connected to the main cables through connectors, the overall wind resistance is relatively large. In windy weather, there is a risk of large swaying and damage to the system. Therefore, a wind-resistant system is usually installed in the span of the photovoltaic system. The wind-resistant system is usually installed below the main cables, and one end of it is fixed to the ground anchor piles through ground anchor cables to improve the integrity of the photovoltaic system and enhance its wind resistance performance.

[0003] Traditional photovoltaic (PV) support systems often use pre-embedded concrete pull plates (gravity anchors) as ground anchor piles, which is the most common anti-pull-out anchoring structure. Its structure is subdivided into: concrete pull plate (gravity anchor) + connecting parts connecting the pull rod and the pull plate + pull plate. The construction process of concrete pull plate (gravity anchor) is as follows: assemble concrete pull plate on site → measure and set out → excavate pre-embedded holes of corresponding size → put in concrete pull plate and adjust the angle of pull rod → backfill the hole with soil and compact it.

[0004] The aforementioned existing technologies have the following drawbacks: limited geological applicability, often applicable to hard / dense soils, limited mechanical construction under adverse geological conditions such as soft soil and sand layers, requiring large-scale excavation, difficult to implement in narrow sites or areas with dense underground pipelines, and insufficient pull-out resistance, requiring a significant increase in volume. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a cast-in-place pile for a photovoltaic support wind-resistant system, so as to solve the technical problems of limited construction and poor pull-out resistance of the ground anchor piles in the existing photovoltaic support wind-resistant system.

[0006] To achieve the above objectives, this utility model provides a cast-in-place pile for a photovoltaic support wind-resistant system, comprising:

[0007] A pull-out resistant steel pipe, which is hollow inside to form a cavity for pouring concrete, and the pull-out resistant steel pipe has a plurality of concrete flow holes that are spaced apart along its length to connect the cavities.

[0008] Ground anchor cable fastener, which is installed at the top of the pull-out steel pipe for connecting the ground anchor cable of the wind-resistant system;

[0009] The pull-out plate has multiple plates spaced apart along the length of the pull-out steel pipe outside the pull-out steel pipe, so that after the cast-in-place pile is embedded in the pile hole, the concrete flow hole can form a channel for concrete to flow inside and outside the pull-out steel pipe, so that the concrete fills the space between the cast-in-place pile and the inner wall of the pile hole and the cavity of the pull-out steel pipe successively.

[0010] As a preferred embodiment of this utility model, the concrete flow holes are evenly distributed along the circumference of the pull-out steel pipe and located between two adjacent pull-out discs.

[0011] As a preferred embodiment of this utility model, the anti-pull-out disc is a disc, and a through hole adapted to the cross-sectional profile of the anti-pull-out steel pipe is provided in the middle of the anti-pull-out disc, so that the anti-pull-out disc can be sleeved on the outside of the anti-pull-out steel pipe.

[0012] As a preferred embodiment of this utility model, the outer diameter of the pull-out resisting disc is equal to the diameter of the cast-in-place pile minus the thickness of the concrete protective layer, and the inner diameter of the through hole of the pull-out resisting disc is greater than or equal to the diameter of the pull-out resisting steel pipe.

[0013] As a preferred technical solution of this utility model, the anti-pull-out disc and the anti-pull-out steel pipe are fixed by welding.

[0014] As a preferred embodiment of this utility model, the pull-out resistant steel pipe has openings at both its top and bottom ends.

[0015] As a preferred embodiment of this utility model, the ground anchor cable fixing component includes:

[0016] A pull rod, comprising a rigid pull rod, and steel pipe external pull rings and steel pipe internal fixing and positioning rings respectively disposed at both ends of the rigid pull rod;

[0017] A pull rod tube internal fixing positioning component is used to fix the steel pipe internal fixing positioning ring in the pull-out resistant steel pipe. The pull rod tube internal fixing positioning component is a steel rod. The pull-out resistant steel pipe has symmetrical pull rod fixing positioning holes on its outside. The steel rod can be inserted into the pull rod fixing positioning hole and connected to the steel pipe internal fixing positioning ring.

[0018] As a preferred technical solution of this utility model, the concrete is selected as fine aggregate concrete.

[0019] The beneficial effects of this utility model are as follows: By opening concrete flow holes in the wall of the anti-pull-out steel pipe, this utility model can cleverly enhance the bond between the pile and the soil by pouring concrete. The setting of the concrete flow holes ensures the quality of pouring without weakening the strength of the pile. Secondly, the spaced anti-pull-out discs can act like "barbs", which can significantly increase the pull-out resistance. Moreover, the spaced distribution of the anti-pull-out discs can form multi-level resistance, thereby significantly improving the wind resistance performance of the wind-resistant system. In addition, since anti-pull-out steel pipes are used, there is no need to dig pits, only drilling is required, which has less restriction on the site. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the pull-out resistant steel pipe of this utility model;

[0024] Figure 4 This is a top view schematic diagram of the anti-pull-out disc structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the main structure of the pull rod of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the internal fixing and positioning component of the pull rod tube of this utility model.

[0027] The markings in the diagram are: 1. Anti-pull-out steel pipe; 2. Anti-pull-out disc; 3. Pull rod; 4. Pull rod tube internal fixing positioning component. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] like Figure 1 and Figure 2 and Figure 5 As shown, a cast-in-place pile for a photovoltaic support wind-resistant system includes: a pull-out steel pipe 1, which is hollow inside to form a cavity for pouring concrete, and a plurality of concrete flow holes that connect the cavity are spaced apart along the length of the pull-out steel pipe 1; a ground anchor cable fixing component, which is set at the top of the pull-out steel pipe 1 for connecting the ground anchor cable of the wind-resistant system; and a pull-out plate 2, which has a plurality of plates and is spaced apart along the length of the pull-out steel pipe 1 outside the pull-out steel pipe 1, so that after the cast-in-place pile is buried in the pile hole, the concrete flow holes can form a channel for concrete to flow inside and outside the pull-out steel pipe 1, so that concrete fills the space between the cast-in-place pile and the inner wall of the pile hole and the cavity of the pull-out steel pipe 1 successively.

[0031] The above-mentioned technical solution can effectively improve the pull-out resistance of cast-in-place piles. By opening concrete flow holes in the wall of the pull-out steel pipe 1, the bonding force between the pile body and the soil can be enhanced by pouring concrete. The setting of concrete flow holes ensures the quality of pouring without weakening the strength of the pile body. Secondly, the spaced pull-out discs 2 can act like "barbs" and can significantly increase the pull-out resistance. Moreover, the spaced distribution of the pull-out discs 2 can form multi-level resistance, thereby significantly improving the wind resistance performance of the wind-resistant system. In addition, since the pull-out steel pipe 1 is used, there is no need to dig pits, only drilling is required, which has less restriction on the site.

[0032] like Figure 1 and Figure 3 As shown, in this embodiment, the concrete flow holes are evenly distributed along the circumference of the pull-out steel pipe 1 and located between two adjacent pull-out discs 2.

[0033] The above technical solution can prevent the anti-pull-out plate 2 from blocking the concrete flow hole on the surface of the anti-pull-out steel pipe 1, ensuring that the concrete flow hole can enter and exit the concrete without obstruction. At the same time, the uniformly distributed concrete flow holes can make the concrete uniform in all parts of the pile hole.

[0034] like Figure 1 and Figure 4 As shown, in this embodiment, the tension-resistant disc 2 is a disc, and a through hole adapted to the cross-sectional profile of the tension-resistant steel pipe 1 is opened in the middle of the tension-resistant disc 2 so that the tension-resistant disc 2 can be sleeved on the outside of the tension-resistant steel pipe 1; the outer diameter of the tension-resistant disc 2 is equal to the diameter of the cast-in-place pile minus the thickness of the concrete protective layer, and the inner diameter of the through hole of the tension-resistant disc 2 is greater than or equal to the diameter of the tension-resistant steel pipe 1; the tension-resistant disc 2 and the tension-resistant steel pipe 1 are fixed by welding.

[0035] The above technical solution can fix the anti-pull plate 2 to the outside of the anti-pull steel pipe 1. The contact surface between the anti-pull plate 2 and the anti-pull steel pipe 1 is welded, which can improve the connection strength between the two and prevent the anti-pull plate 2 from falling off the surface of the anti-pull steel pipe 1.

[0036] like Figure 1 and Figure 3 As shown, in this embodiment, the pull-out resistant steel pipe 1 has openings at both its top and bottom ends;

[0037] The above technical solution can further improve the flowability of concrete in the pull-out steel pipe 1, making it easier for concrete to be poured evenly between the pile hole and the pull-out steel pipe 1. At the same time, it can also reduce the weight of the pull-out steel pipe 1 and facilitate transportation.

[0038] like Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the ground anchor cable fixing component includes: a pull rod 3, which includes a rigid pull rod, and steel pipe external pull rings and steel pipe internal fixing positioning rings respectively disposed at both ends of the rigid pull rod; a pull rod internal fixing positioning component 4, which is used to fix the steel pipe internal fixing positioning ring in the pull-out steel pipe 1. The pull rod internal fixing positioning component 4 is a steel rod, and the pull-out steel pipe 1 has symmetrical pull rod fixing positioning holes on its outside. The steel rod can be inserted into the pull rod fixing positioning hole and connected to the steel pipe internal fixing positioning ring.

[0039] The above technical solution facilitates the connection and fixation of the ground anchor cable and the cast-in-place pile. The tie rod 3 is fixed to the opening of one end of the pull-out steel pipe 1 by rotation through the fixing and positioning part 4 inside the tie rod tube, which facilitates the on-site adjustment of the angle and position of the tie rod 3. The tie rod 3 will be locked after the concrete solidifies.

[0040] In this embodiment, fine aggregate concrete is selected;

[0041] The above technical solution can ensure that the concrete has good fluidity and prevent it from being blocked in the concrete flow hole of the pull-out steel pipe 1.

[0042] Working principle: This utility model cleverly enhances the bond between the pile and the soil by injecting concrete through concrete flow holes opened in the wall of the anti-pull-out steel pipe 1. The concrete flow holes ensure the quality of injection without weakening the strength of the pile. Secondly, the spaced anti-pull-out discs 2 act like "barbs," significantly increasing the pull-out resistance. The spaced distribution of the anti-pull-out discs 2 creates multi-level resistance, thereby significantly improving the wind resistance performance of the wind-resistant system. In addition, since the anti-pull-out steel pipe 1 is used, there is no need to dig pits, only drilling is required, which has less site restriction. It is worth mentioning that the tie rod 3 is fixed to the opening at one end of the anti-pull-out steel pipe 1 by rotation through the fixing and positioning part 4 inside the tie rod tube, which facilitates the adjustment of the angle and position of the tie rod 3 on site. After the concrete solidifies, the tie rod 3 will be locked, making the structure sturdy.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cast-in-place pile for a photovoltaic support wind-resistant system, characterized in that, include: The pull-out steel pipe (1) is hollow inside to form a cavity for pouring concrete. The pull-out steel pipe (1) has a plurality of concrete flow holes that connect the cavities at intervals along its length on its outside. Ground anchor cable fastener, which is set at the top of the pull-out steel pipe (1) for connecting the ground anchor cable of the wind-resistant system; The pull-out plate (2) has multiple plates spaced apart along the length of the pull-out steel pipe (1) outside the pull-out steel pipe (1), so that after the cast-in-place pile is buried in the pile hole, the concrete flow hole can form a channel for concrete to flow inside and outside the pull-out steel pipe (1), so that the concrete fills the cavity between the cast-in-place pile and the inner wall of the pile hole and the pull-out steel pipe (1) successively.

2. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 1, characterized in that, The concrete flow holes are evenly distributed along the circumference of the pull-out steel pipe (1) and located between two adjacent pull-out discs (2).

3. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 1, characterized in that, The pull-out plate (2) is a disc, and a through hole adapted to the cross-sectional profile of the pull-out steel pipe (1) is provided in the middle of the pull-out plate (2) so that the pull-out plate (2) can be fitted on the outside of the pull-out steel pipe (1).

4. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 3, characterized in that, The outer diameter of the pull-out plate (2) is equal to the diameter of the cast-in-place pile minus the thickness of the concrete protective layer, and the inner diameter of the through hole of the pull-out plate (2) is greater than or equal to the diameter of the pull-out steel pipe (1).

5. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 4, characterized in that, The pull-out plate (2) and the pull-out steel pipe (1) are fixed by welding.

6. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 1, characterized in that, The pull-out resistant steel pipe (1) has openings at both its top and bottom ends.

7. The cast-in-place pile of the photovoltaic support wind-resistant system according to claim 1, characterized in that, The ground anchor cable fastener includes: The pull rod (3) includes a rigid pull rod, and steel pipe external pull rings and steel pipe internal fixed positioning rings respectively disposed at both ends of the rigid pull rod; The inner fixing positioning component (4) of the pull rod tube is used to fix the inner fixing positioning ring of the steel pipe in the pull-out steel pipe (1). The inner fixing positioning component (4) of the pull rod tube is a steel rod. The outer side of the pull-out steel pipe (1) is provided with symmetrical pull rod fixing positioning holes. The steel rod can be inserted into the pull rod fixing positioning hole and connected to the inner fixing positioning ring of the steel pipe.

8. The cast-in-place pile of the photovoltaic support wind-resistant system according to any one of claims 1-7, characterized in that, The concrete selected is fine aggregate concrete.

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