Self-drilling anchor rod photovoltaic pile connecting structure

Abstract

The utility model discloses a self-drilling type anchor rod photovoltaic pile connecting structure which comprises a drill bit, the bottom end of the self-drilling type hollow grouting anchor rod is fixedly connected with the drill bit, and the drill bit drives the self-drilling type hollow grouting anchor rod to rotationally drill to the target depth in the supporting body; the bottom end of the pre-embedded stand column is fixedly connected with the top end of the self-drilling type hollow grouting anchor rod, the bottom end of the pre-embedded stand column is pre-embedded in the supporting body, and the top end of the pre-embedded stand column extends to the position above the surface of the supporting body and is used for being fixedly connected with a photovoltaic panel base support. The self-drilling type hollow grouting anchor rod is matched with the drill bit to drill into the supporting body, cement grout is injected into the self-drilling type hollow grouting anchor rod through the grouting system during drilling, drilling and grouting of the self-drilling type hollow grouting anchor rod are achieved at the same time, grouting is achieved while drilling is completed, and the grouting efficiency is improved. And after the injected cement grout is solidified, the self-drilling type hollow grouting anchor rod and the supporting main body are firmly fastened together.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering equipment, in particular to a self-drilling anchor photovoltaic pile connection structure. Background Art

[0002] Photovoltaic panels are devices that generate direct current (DC) electricity when exposed to sunlight. They are composed almost entirely of thin, solid-state photovoltaic cells made from semiconductor materials (such as silicon). Photovoltaic power plants are a new type of energy source that utilizes photovoltaic panels in areas with ample sunlight. To securely support the panels, a photovoltaic pile connection structure is typically embedded in the supporting structure (such as the ground), to which the panel brackets are fixedly connected.

[0003] See also Figure 1 and Figure 2 As shown, the existing photovoltaic pile connection structure includes a steel cage base and a pre-buried column 100 fixedly connected to the steel cage base. The specific construction process is as follows:

[0004] 1) Drill a foundation pit of a certain depth inside the supporting body;

[0005] 2) Using longitudinal full-length longitudinal reinforcement 201 and welded stirrups 202 for binding connection to form a reinforcement cage base;

[0006] 3) burying the steel cage base in the foundation pit, inserting the embedded columns 100 into the top of the steel cage base, and extending the top of the embedded columns 100 above the surface of the supporting body;

[0007] 4) Prepare concrete and pour it into the foundation pit. After the concrete solidifies, the embedded columns 100, the steel cage base and the supporting body are integrated and fixed to ensure the stability and reliability of the photovoltaic pile connection structure.

[0008] It can be seen from the above records that the structure and construction process of the existing photovoltaic pile connection structure are relatively complicated, which greatly affects the construction efficiency during the actual construction process.

[0009] In view of this, this utility model patent is proposed. Utility Model Content

[0010] In order to solve the above technical problems, the present invention provides a self-drilling anchor photovoltaic pile connection structure, which simplifies the overall structure and construction process and can greatly improve construction efficiency. Specifically, the following technical solutions are adopted:

[0011] A self-drilling anchor photovoltaic pile connection structure, comprising:

[0012] drill;

[0013] A self-drilling hollow grouting anchor rod, the bottom end of which is fixedly connected to the drill bit, and the drill bit drives the self-drilling hollow grouting anchor rod to rotate and drill to a target depth in the support body;

[0014] The bottom end of the embedded column is fixedly connected to the top end of the self-drilling hollow grouting anchor rod. The bottom end of the embedded column is embedded in the supporting body, and the top end of the embedded column extends above the surface of the supporting body for fixedly connecting the photovoltaic panel base bracket.

[0015] As an optional embodiment of the present invention, the embedded column includes a connecting plate and a connecting column, the connecting plate is fixedly connected to the top end of the self-drilling hollow grouting anchor rod, the top surface of the connecting plate is fixedly connected to the connecting column, one end of the connecting column connected to the connecting plate is embedded in the supporting body, and the other end extends above the surface of the supporting body.

[0016] As an optional implementation manner of the present invention, the connecting plate is fixedly connected to one of the self-drilling hollow grouting anchor rods, and the self-drilling hollow grouting anchor rod is fixed on the geometric center of the connecting plate.

[0017] As an optional embodiment of the present invention, the embedded column includes a connecting threaded sleeve, the connecting threaded sleeve is fixedly connected to the geometric center of the bottom surface of the connecting plate, and the connecting threaded sleeve is fixedly connected to the top end of the self-drilling hollow grouting anchor rod.

[0018] As an optional embodiment of the present invention, the connecting plate is fixedly connected to a plurality of the self-drilling hollow grouting anchor rods, and the plurality of the self-drilling hollow grouting anchor rods are evenly distributed along the circumference of the connecting plate, and the connecting column is fixedly connected to the top surface of the connecting plate at the geometric center position of the plurality of self-drilling hollow grouting anchor rods.

[0019] As an optional embodiment of the present invention, a plurality of mounting holes are evenly arranged on the connecting plate along the circumference, and the top end of the self-drilling hollow grouting anchor rod passes through the mounting holes and is fixedly connected by a fastening nut.

[0020] As an optional embodiment of the present invention, a plurality of stiffening ribs are fixed between the connecting plate and the outer peripheral wall of the connecting column, and the plurality of stiffening ribs are evenly distributed along the outer peripheral wall of the connecting column.

[0021] As an optional embodiment of the present invention, the connecting plate is a triangular connecting plate, and the three circumferential corners of the triangular connecting plate are respectively fixedly connected to the self-drilling hollow grouting anchor rods.

[0022] As an optional embodiment of the present invention, the stiffening ribs include three, which are respectively arranged corresponding to the three circumferential corners of the triangular connecting plate.

[0023] As an optional embodiment of the present invention, the self-drilling hollow grouting anchor rod includes a hollow anchor rod unit and a hollow connecting sleeve. The two hollow anchor rod units are fixedly connected in series through the hollow connecting sleeve. The multi-stage hollow anchor rod units are fixedly connected in series to achieve a target length corresponding to the target depth.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The utility model discloses a self-drilling anchor photovoltaic pile connection structure, which uses a self-drilling hollow grouting anchor rod in conjunction with a drill bit to drill into a supporting body. While drilling, cement slurry is injected into the self-drilling hollow grouting anchor rod through a grouting system. The injected cement slurry flows out through a slurry outlet provided on the rod wall of the self-drilling hollow grouting anchor rod from the inside of the self-drilling hollow grouting anchor rod and is injected into the gap between the self-drilling hollow grouting anchor rod and the supporting body, thereby achieving grouting while drilling the self-drilling hollow grouting anchor rod. Grouting is also achieved while drilling is completed. After the injected cement slurry solidifies, the self-drilling hollow grouting anchor rod and the supporting body are firmly fastened together. The utility model directly fixes the embedded column to the top end of the self-drilling hollow grouting anchor rod. The embedded column extends above the surface of the supporting body and can be fixedly connected to the photovoltaic panel base bracket.

[0026] From the above, it can be seen that the self-drilling anchor photovoltaic pile connection structure of the present invention realizes grouting while drilling through a self-drilling hollow grouting anchor. Compared with the existing technology, it greatly simplifies the overall structure and construction process, and improves on-site construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Main view of the existing photovoltaic pile connection structure;

[0028] Figure 2 The existing photovoltaic pile connection structure is along Figure 1 Sectional view of the AA plane;

[0029] Figure 3 A cross-sectional view of a self-drilling anchor photovoltaic pile connection structure in use according to an embodiment of the present utility model (Implementation Method 1);

[0030] Figure 4 Reference diagram of the use state of a self-drilling anchor photovoltaic pile connection structure according to the embodiment of the present utility model (Implementation Method 1);

[0031] Figure 5 Reference diagram of the use state of a self-drilling anchor photovoltaic pile connection structure according to the embodiment of the present utility model (Implementation Method 2);

[0032] Figure 6 The utility model embodiment of a self-drilling anchor photovoltaic pile connection structure along Figure 5 Cross-sectional view of the middle BB plane;

[0033] Figure 7 The utility model embodiment of a self-drilling anchor photovoltaic pile connection structure along Figure 6 Cross-sectional view of the middle CC plane;

[0034] Figure 8 A structural schematic diagram of a self-drilling anchor photovoltaic pile connection structure according to an embodiment of the present utility model (Implementation Method 2). DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0036] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0039] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0040] See also Figure 3-Figure 8 As shown, a self-drilling anchor photovoltaic pile connection structure of this embodiment includes:

[0041] Drill bit 600;

[0042] A self-drilling hollow grouting anchor rod 500, the bottom end of which is fixedly connected to the drill bit 600, and the drill bit 600 drives the self-drilling hollow grouting anchor rod 500 to rotate and drill to a target depth within a supporting body 700 (e.g., the ground);

[0043] The bottom end of the embedded column 100 is fixedly connected to the top end of the self-drilling hollow grouting anchor rod 500. The bottom end of the embedded column 100 is embedded in the supporting body 700, and the top end of the embedded column 100 extends above the surface of the supporting body 700 for fixed connection to the photovoltaic panel base bracket.

[0044] A self-drilling anchor photovoltaic pile connection structure of the present embodiment adopts a self-drilling hollow grouting anchor rod 500 to cooperate with a drill bit 600 to drill into the supporting body 700. While drilling, cement slurry is injected into the self-drilling hollow grouting anchor rod 500 through the grouting system. The injected cement slurry flows out from the slurry outlet opened on the rod wall of the self-drilling hollow grouting anchor rod 500 through the interior of the self-drilling hollow grouting anchor rod 500, and is injected into the gap between the self-drilling hollow grouting anchor rod 500 and the supporting body 700, realizing the grouting while drilling of the self-drilling hollow grouting anchor rod 500. Grouting is also achieved when drilling is completed. After the injected cement slurry solidifies, the self-drilling hollow grouting anchor rod 500 and the supporting body 700 are firmly fastened together. In this embodiment, the embedded column 100 is directly fixedly connected to the top end of the self-drilling hollow grouting anchor rod 500. The embedded column 100 extends above the surface of the supporting body 700 and can be fixedly connected to the photovoltaic panel base bracket.

[0045] From the above, it can be seen that the self-drilling anchor photovoltaic pile connection structure of this embodiment realizes grouting while drilling through the self-drilling hollow grouting anchor 500. Compared with the existing technology, it greatly simplifies the overall structure and construction process and improves on-site construction efficiency.

[0046] Furthermore, in this embodiment, concrete pouring is performed at the connection position between the embedded column 100 and the self-drilling hollow grouting anchor rod 500, thereby increasing the connection strength between the embedded column 100 and the self-drilling hollow grouting anchor rod 500, thereby increasing the reliability of the fixed connection between the embedded column 100 and the support body 700.

[0047] See also Figure 3 and Figure 4As shown, as an optional embodiment of this embodiment, a self-drilling anchor photovoltaic pile connection structure of this embodiment, the embedded column 100 includes a connecting plate 102 and a connecting column 101. The connecting plate 102 is fixedly connected to the top of the self-drilling hollow grouting anchor 500, and the top surface of the connecting plate 102 is fixedly connected to the connecting column 101. The end of the connecting column 101 connected to the connecting plate 102 is embedded in the supporting body 700, and the other end extends above the surface of the supporting body 700. The embedded column 100 of this embodiment is fixedly connected to the self-drilling hollow grouting anchor 500 through the connecting plate 102, and the connection method is simple and reliable.

[0048] Furthermore, the connecting plate 102 of this embodiment is fixedly connected to a self-drilling hollow grouting anchor rod 500 , and the self-drilling hollow grouting anchor rod 500 is fixed on the geometric center of the connecting plate 102 .

[0049] Specifically, the embedded column 100 in this embodiment includes a connecting threaded sleeve 103, and the connecting threaded sleeve 103 is fixedly connected to the geometric center of the bottom surface of the connecting plate 102, and the connecting threaded sleeve 103 is fixedly connected to the top of the self-drilling hollow grouting anchor rod 500.

[0050] In addition, in order to meet the drilling depth requirements of the self-drilling hollow grouting anchor rod 500, the self-drilling hollow grouting anchor rod 500 described in this embodiment includes a hollow anchor rod monomer 501 and a hollow connecting sleeve 502. The two hollow anchor rod monomers 501 are fixedly connected in series through the hollow connecting sleeve 502, and the multi-stage hollow anchor rod monomers 501 are fixedly connected in series to achieve the target length corresponding to the target depth.

[0051] Specifically, in this embodiment, the self-drilling hollow grouting anchor 500 is constructed with a hollow anchor unit 501 having specifications of HSR32N, a tensile strength of >280 kN, a yield strength of >230 kN, an elongation of >8%, a pitch of 12.7 mm, a length of 1 m, and a left-hand rotation. The connecting sleeve is >145 mm long, and when combined with the hollow anchor unit 501, the pull-out resistance is no less than the tensile strength of the rod body. Cement slurry is used for wall protection during drilling, with grouting performed simultaneously under normal pressure. The slurry uses PO.42.5 cement slurry with a water-cement ratio of 0.70-1.0.

[0052] Self-drilling hollow grouting anchor 500 has a hole diameter >51mm.

[0053] The construction process of the present embodiment is as follows:

[0054] (1) One end of the hollow anchor rod unit 501 is connected to the drill bit 600, and the other end is connected to the rotary grouting adapter on the drilling rig. The slurry is connected and drilling begins until the end of the hollow anchor rod unit 501 reaches the working surface.

[0055] (2) Stop grouting and remove the connection between the rotary grouting adapter and the end of the hollow anchor rod 501.

[0056] (3) A centering device and a hollow connecting sleeve 502 are sequentially installed at the end of the drilled hollow anchor rod monomer 501, and then the next hollow anchor rod monomer 501 is installed between the hollow connecting sleeve 502 and the rotary grouting adapter.

[0057] (4) Connect the slurry and drill until the end of the hollow anchor rod 501 reaches the working surface.

[0058] (5) Repeat (2)(3)(4) until the self-drilling hollow grouting anchor rod 500 is drilled to the target depth.

[0059] (6) Fix the connecting plate 102 and lock it.

[0060] See also Figures 5 to 8 As shown, as an optional implementation of this embodiment, this embodiment is a self-drilling anchor photovoltaic pile connection structure, the connecting plate 102 is fixedly connected to multiple self-drilling hollow grouting anchor rods 500, and the multiple self-drilling hollow grouting anchor rods 500 are evenly distributed along the circumference of the connecting plate 102, and the connecting column 101 is fixedly connected to the top surface of the connecting plate 102 and is located at the geometric center position of the multiple self-drilling hollow grouting anchor rods 500.

[0061] This embodiment uses multiple self-drilling hollow grouting anchor rods 500 to further enhance the connection stability between the self-drilling hollow grouting anchor rods 500 and the supporting body 700. In addition, on the basis of meeting the same connection strength, the drilling depth of the self-drilling hollow grouting anchor rods 500 can be reduced, thereby reducing the construction difficulty.

[0062] Furthermore, in this embodiment, a plurality of mounting holes 106 are uniformly provided on the connecting plate 102 along the circumference, and the top end of the self-drilling hollow grouting anchor rod 500 passes through the mounting hole 106 and is fixedly connected by a fastening nut 104 .

[0063] In order to enhance the connection strength between the connecting plate 102 and the connecting column 101 , a plurality of stiffening ribs 105 are fixed between the connecting plate 102 and the outer peripheral wall of the connecting column 101 in this embodiment. The plurality of stiffening ribs 105 are evenly distributed along the outer peripheral wall of the connecting column 101 .

[0064] Specifically, the connecting plate 102 described in this embodiment is a triangular connecting plate, and the three circumferential corners of the triangular connecting plate are respectively fixedly connected to the self-drilling hollow grouting anchor rods 500.

[0065] Correspondingly, the present embodiment includes three stiffening ribs 105 , which are respectively arranged corresponding to the three circumferential corners of the triangular connecting plate.

[0066] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A self-drilling anchor photovoltaic pile connection structure, characterized in that: include: drill; A self-drilling hollow grouting anchor rod, the bottom end of which is fixedly connected to the drill bit, and the drill bit drives the self-drilling hollow grouting anchor rod to rotate and drill to a target depth in the support body; The bottom end of the embedded column is fixedly connected to the top end of the self-drilling hollow grouting anchor rod. The bottom end of the embedded column is embedded in the supporting body, and the top end of the embedded column extends above the surface of the supporting body for fixedly connecting the photovoltaic panel base bracket.

2. The self-drilling anchor photovoltaic pile connection structure according to claim 1, characterized in that: The embedded column includes a connecting plate and a connecting column. The connecting plate is fixedly connected to the top end of the self-drilling hollow grouting anchor rod. The top surface of the connecting plate is fixedly connected to the connecting column. One end of the connecting column connected to the connecting plate is embedded in the supporting body, and the other end extends above the surface of the supporting body.

3. The self-drilling anchor photovoltaic pile connection structure according to claim 2, characterized in that: The connecting plate is fixedly connected to one of the self-drilling hollow grouting anchor rods, and the self-drilling hollow grouting anchor rod is fixed on the geometric center of the connecting plate.

4. The self-drilling anchor photovoltaic pile connection structure according to claim 3, characterized in that: The embedded column includes a connecting threaded sleeve, the connecting threaded sleeve is fixedly connected to the geometric center of the bottom surface of the connecting plate, and the connecting threaded sleeve is fixedly connected to the top end of the self-drilling hollow grouting anchor rod.

5. The self-drilling anchor photovoltaic pile connection structure according to claim 2, characterized in that: The connecting plate is fixedly connected to a plurality of the self-drilling hollow grouting anchor rods, and the plurality of the self-drilling hollow grouting anchor rods are evenly distributed along the circumference of the connecting plate. The connecting column is fixedly connected to the top surface of the connecting plate at the geometric center position of the plurality of the self-drilling hollow grouting anchor rods.

6. The self-drilling anchor photovoltaic pile connection structure according to claim 5, characterized in that: A plurality of mounting holes are evenly arranged along the circumference of the connecting plate, and the top end of the self-drilling hollow grouting anchor rod passes through the mounting holes and is fixedly connected by a fastening nut.

7. The self-drilling anchor photovoltaic pile connection structure according to claim 6, characterized in that: A plurality of stiffening ribs are fixed between the connecting plate and the outer peripheral wall of the connecting column, and the plurality of stiffening ribs are evenly distributed along the outer peripheral wall of the connecting column.

8. The self-drilling anchor photovoltaic pile connection structure according to claim 7, characterized in that: The connecting plate is a triangular connecting plate, and the three circumferential corners of the triangular connecting plate are respectively fixedly connected to the self-drilling hollow grouting anchor rods.

9. The self-drilling anchor photovoltaic pile connection structure according to claim 8, characterized in that: The stiffening ribs include three, which are respectively arranged corresponding to the three circumferential corners of the triangular connecting plate.

10. The self-drilling anchor photovoltaic pile connection structure according to claim 1, characterized in that: The self-drilling hollow grouting anchor comprises a hollow anchor unit and a hollow connecting sleeve. Two hollow anchor units are fixedly connected in series via the hollow connecting sleeve. Multiple hollow anchor units are fixedly connected in series to achieve a target length corresponding to the target depth.

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