Fully-sealed extrusion anchoring node for flexible photovoltaic support and construction method of fully-sealed extrusion anchoring node

Abstract

The invention discloses a fully-sealed extrusion anchoring node for a flexible photovoltaic support and a construction method of the fully-sealed extrusion anchoring node. The fully-sealed extrusion anchoring node comprises connecting lug plates, twisted steel bars, extrusion anchors and extrusion anchor adapters. The extrusion anchor adapter comprises a sleeve, a connecting nut and a limiting filling core, the connecting nut and the limiting filling core are fixed to the two ends of the sleeve, the sleeve is provided with an inner cavity matched with the extrusion anchor, the extrusion anchor is fixed to the end of the steel strand and arranged in the sleeve, and the limiting filling core limits the extrusion anchor. A first waterproof rubber gasket is arranged between the connecting nut and the extrusion anchor, a second waterproof rubber gasket is arranged between the limiting filling core and the extrusion anchor, and the steel strand penetrates through the second waterproof rubber gasket and the limiting filling core. The connecting nut is provided with a full-length inner thread used for being in threaded connection with one end of the twisted steel. The other end of the twisted steel is connected with a beam or a column of the photovoltaic support through the connecting lug plate. End anchoring of the flexible photovoltaic support steel strand can be achieved, and the reliability and durability of a support connecting node are improved.

Description

Technical Field

[0001] The present invention relates to an anchor for a flexible photovoltaic support, and particularly to a fully sealed extrusion anchoring node for a flexible photovoltaic support and a construction method thereof. Background Art

[0002] As a clean and renewable energy form, solar photovoltaic power generation technology has been widely applied and developed. In a photovoltaic support system, flexible photovoltaic supports are favored due to their advantages such as being lightweight, easy to install, and adaptable to complex terrains. As an important load-bearing component of flexible photovoltaic supports, the performance of steel strands directly affects the safety and durability of the entire photovoltaic system. Currently, the connection methods between the ends of steel strands and photovoltaic supports usually adopt traditional mechanical clamps, welding, etc., which may cause corrosion, loosening, or fatigue failure during long-term use, and it is difficult to meet the usage requirements in complex environments. Especially under extreme working conditions such as strong winds and heavy loads, the connection strength and stability of the anchoring nodes are crucial. Summary of the Invention

[0003] Object of the Invention: The first object of the present invention is to provide a fully sealed extrusion anchoring node for a flexible photovoltaic support with high reliability and durability, so as to improve the safety and service life of the flexible photovoltaic support system; the second object of the present invention is to provide a construction method for the fully sealed extrusion anchoring node.

[0004] Technical Solution: The present invention includes a connecting ear plate, a threaded steel bar, an extrusion anchor, and an extrusion anchor adapter; the extrusion anchor adapter includes a sleeve and connecting nuts and limiting filling cores fixed at both ends of the sleeve. The sleeve has an inner cavity adapted to the extrusion anchor. The extrusion anchor is fixed at the end of the steel strand and is arranged in the sleeve, and the limiting filling core limits the extrusion anchor; a first waterproof rubber washer is arranged between the connecting nut and the extrusion anchor, and a second waterproof rubber washer is arranged between the limiting filling core and the extrusion anchor. The steel strand passes through the second waterproof rubber washer and the limiting filling core; the connecting nut has an internally threaded tooth extending throughout for threadedly connecting with one end of the threaded steel bar; the other end of the threaded steel bar is connected to a beam or column of the photovoltaic support through the connecting ear plate.

[0005] Further, the limiting filling core has an externally threaded tooth, and the limiting filling core is threadedly connected to the sleeve by using the externally threaded tooth.

[0006] Further, a limiting screw hole is opened on the side wall of the sleeve, and a limiting bolt is arranged in the limiting screw hole for pressing against the limiting filling core to prevent it from rotating and loosening under the action of vibration loads.

[0007] Based on the threaded connection between the limiting filling core and the sleeve, the limiting bolt can prevent the limiting filling core from loosening under the action of vibration loads, further improving the reliability and durability of the connection node of the flexible photovoltaic support.

[0008] Furthermore, two positioning holes are provided at the end of the limiting filling core, which are used to cooperate with a wrench to screw the limiting filling core into the sleeve.

[0009] Furthermore, the connecting nut also has an external thread, which is not arranged throughout and is used for threaded connection with the sleeve.

[0010] Furthermore, a steel bar through hole is opened at the rear end of the connecting ear plate, a limiting platform is set at the inner end of the steel bar through hole, the other end of the threaded steel bar passes through the steel bar through hole and is anchored by a matching nut, and the matching nut abuts against the limiting platform.

[0011] Furthermore, a pin hole is provided at the front end of the connecting ear plate and is connected to the beam or column of the photovoltaic support through the pin.

[0012] Furthermore, the threaded steel bars are precision-rolled threaded steel bars.

[0013] The construction method of the fully sealed extrusion anchor node of the present invention comprises:

[0014] 1) After inserting the limit filling core and the second waterproof rubber pad into the steel strand, use special equipment to reliably connect the extrusion anchor to the end of the steel strand;

[0015] 2) Place the extrusion anchor into the sleeve, use a wrench to clamp the positioning hole at the end of the limiting filler, screw in the limiting filler, and use the limiting bolt to tighten the side of the limiting filler through the limiting screw hole to prevent it from loosening;

[0016] 3) After inserting the first waterproof rubber gasket, screw the connecting nut into the sleeve, and screw the threaded steel bar into the connecting nut;

[0017] 4) After passing the threaded steel bar through the steel bar hole and the limit platform on the connecting ear plate, anchor it with the matching nut;

[0018] 5) Connect the connecting ear plate to the beam or column of the photovoltaic bracket through a pin.

[0019] Furthermore, step 5) also includes: adjusting the length of the threaded steel bar between the connecting ear plate and the extrusion anchor adapter by rotating the matching nut to tension the steel strand.

[0020] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the present invention sets an extrusion anchor at the end of the steel strand, places the extrusion anchor in a sleeve, and seals both ends of the sleeve by connecting nuts, limiting fillers and waterproof rubber washers, and the extrusion anchor is limited by the limiting fillers. The materials used in the present invention are simple, and the cost is greatly reduced compared to other pressed or cast steel nodes. The threaded steel bar connection is used to ensure the length adjustability of the steel strand cable; at the same time, the extrusion anchor has higher reliability than the clip anchor, and the construction is simple. The built-in waterproof rubber washer can ensure the reliability and durability of the anchor node at the end of the steel strand. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural view of a fully sealed extrusion anchoring node for a flexible photovoltaic support provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic structural view of a connecting ear plate in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural view of an extrusion anchor adapter in an embodiment of the present invention;

[0024] Figure 4 is a schematic structural view of a connecting nut in an embodiment of the present invention;

[0025] Figure 5 is a schematic structural view of a sleeve in an embodiment of the present invention;

[0026] Figure 6 is a schematic structural view of a limiting filling core in an embodiment of the present invention;

[0027] Figure 7 is a schematic view of the usage state of a fully sealed extrusion anchoring node in an embodiment of the present invention. Detailed Embodiment

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Acc Figures 1 to 7 The reference numerals in the accompanying drawings are as follows:

[0030] 1, connecting ear plate; 2, mating nut; 3, threaded steel bar; 4, sleeve; 5, steel strand; 6, pin hole; 7, limiting platform; 8, connecting nut; 9, extrusion anchor; 10, first waterproof rubber washer; 11, second waterproof rubber washer; 12, limiting filling core; 13, limiting screw hole; 14, positioning hole.

[0031] As Figures 1 to 7 shown, an embodiment of the present invention provides a fully sealed extrusion anchoring node for a flexible photovoltaic support, including a connecting ear plate 1, a threaded steel bar 3, an extrusion anchor 9 and an extrusion anchor adapter.

[0032] The extrusion anchor adapter includes a sleeve 4, a connecting nut 8 and a limiting filling core 12. The sleeve 4 has a cavity adapted to the extrusion anchor 9. The connecting nut 8 has internal threads and external threads, wherein the internal threads are provided throughout, and the external threads are not provided throughout. The limiting filling core 12 has external threads.

[0033] The extrusion anchor 9 is fixed to the end of the steel strand 5 and is arranged in the sleeve 4. The limiting filling core 12 is threadedly connected to the right end of the sleeve 4 by its external thread to axially limit the extrusion anchor 9. A second waterproof rubber gasket 11 is arranged between the limiting filling core 12 and the extrusion anchor 9, and the steel strand 5 passes through the second waterproof rubber gasket 11 and the limiting filling core 12.

[0034] In addition, a limit screw hole 13 is provided on the side wall of the sleeve 4, and a limit bolt is arranged in the limit screw hole 13 to tighten the limit filling core 12 to prevent it from rotating and loosening under the vibration load. Two positioning holes 14 are arranged at the end of the limit filling core 12 to cooperate with a wrench to screw the limit filling core 12 into the sleeve 4.

[0035] The connecting nut 8 is threadedly connected to the left end of the sleeve 4 by its external thread. A first waterproof rubber gasket 10 is arranged between the connecting nut 8 and the extrusion anchor 9, and a waterproof rubber strip is arranged between the step surface of the connecting nut 8 and the sleeve 4. One end of the threaded steel bar 3 is threadedly connected to the internal thread of the connecting nut 8. A pin shaft hole 6 is provided at the front end of the connecting ear plate 1 and is connected to the beam or column of the photovoltaic support through the pin shaft. A steel bar through hole is provided at the rear end of the connecting ear plate 1, and a limiting platform 7 is provided at the inner side end of the steel bar through hole. The other end of the threaded steel bar 3 passes through the steel bar through hole and is anchored through the matching nut 2, and the matching nut 2 abuts against the limiting platform 7.

[0036] In this embodiment, the threaded steel bar 3 is a precision-rolled threaded steel bar.

[0037] The embodiment of the present invention also provides a construction method of the fully sealed extrusion anchoring node according to the embodiment of the present invention, comprising:

[0038] 1) After the limiting filling core 12 and the second waterproof rubber pad 11 are inserted into the steel strand 5, a special device is used to reliably connect the extrusion anchor 9 to the end of the steel strand 5;

[0039] 2) Place the extrusion anchor 9 into the sleeve 4, use a wrench to clamp the positioning hole 14 at the end of the limiting core 12, screw in the limiting core 12, and use the limiting bolt to tighten the side of the limiting core 12 through the limiting screw hole 13 to prevent it from loosening;

[0040] 3) After inserting the first waterproof rubber gasket 10, screw the connecting nut 8 into the sleeve 4, and screw the threaded steel bar 3 into the connecting nut 8;

[0041] 4) After passing the threaded steel bar 3 through the steel bar through hole on the connecting ear plate 1 and the limiting platform 7, it is anchored with the matching nut 2;

[0042] 5) Connect the connecting ear plate 1 to the beam or column of the photovoltaic support through a pin shaft; adjust the length of the threaded steel bar 3 between the connecting ear plate 1 and the extrusion anchor adapter by rotating the matching nut 2 to tension the steel strand 5.

Claims

1. A fully sealed extrusion anchoring node for a flexible photovoltaic support, characterized in that: The invention comprises a connecting ear plate (1), a threaded steel bar (3), an extrusion anchor (9) and an extrusion anchor adapter; the extrusion anchor adapter comprises a sleeve (4) and a connecting nut (8) and a limiting filling core (12) fixed at both ends of the sleeve (4); the sleeve (4) has an inner cavity adapted to the extrusion anchor (9); the extrusion anchor (9) is fixed to the end of a steel strand (5) and arranged in the sleeve (4); the limiting filling core (12) limits the position of the extrusion anchor (9); a first waterproof rubber gasket (10) is arranged between the connecting nut (8) and the extrusion anchor (9); a second waterproof rubber gasket (11) is arranged between the limiting filling core (12) and the extrusion anchor (9); the steel strand (5) passes through the second waterproof rubber gasket (11) and the limiting filling core (12); the connecting nut (8) has an inner thread arranged throughout the length and is used for being threadedly connected to one end of the threaded steel bar (3); the other end of the threaded steel bar (3) is connected to a beam or column of a photovoltaic support through the connecting ear plate (1).

2. The fully sealed extruded anchor node according to claim 1, characterized in that: The position-limiting filling core (12) has external threads, and the position-limiting filling core (12) is threadedly connected to the sleeve (4) by using the external threads.

3. The fully sealed extruded anchor node according to claim 2, characterized in that: A limiting screw hole (13) is provided on the side wall of the sleeve (4), and a limiting bolt is arranged in the limiting screw hole (13) for tightening the limiting filling core (12) to prevent the limiting filling core (12) from rotating and loosening under the action of a vibration load.

4. The fully sealed extruded anchor node according to claim 3, characterized in that: Two positioning holes (14) are arranged at the end of the position-limiting filling core (12) for cooperating with a wrench to screw the position-limiting filling core (12) into the sleeve (4).

5. The fully sealed extruded anchor node according to claim 4, characterized in that: The connecting nut (8) also has external threads which are not arranged throughout the entire length and are used for threaded connection with the sleeve (4).

6. The fully sealed extruded anchor node according to claim 5, characterized in that: A steel bar through hole is provided at the rear end of the connecting ear plate (1), a limiting platform (7) is provided at the inner end of the steel bar through hole, the other end of the threaded steel bar (3) passes through the steel bar through hole and is anchored by a matching nut (2), and the matching nut (2) abuts against the limiting platform (7).

7. The fully sealed extruded anchor node according to claim 6, characterized in that: A pin hole (6) is provided at the front end of the connecting ear plate (1) and is connected to a beam or a column of the photovoltaic support via the pin.

8. The fully sealed extruded anchor node according to claim 1, characterized in that: The threaded steel bar (3) adopts precision-rolled threaded steel bar.

9. A construction method for a fully sealed extrusion anchor node according to claim 7, characterized in that: include: 1) After the limiting filling core (12) and the second waterproof rubber pad (11) are inserted into the steel strand (5), a special device is used to reliably connect the extrusion anchor (9) to the end of the steel strand (5); 2) Place the extrusion anchor (9) into the sleeve (4), use a wrench to clamp the positioning hole (14) at the end of the limiting filler (12), screw in the limiting filler (12), and use the limiting bolt to tighten the side of the limiting filler (12) through the limiting screw hole (13) to prevent loosening; 3) After inserting the first waterproof rubber gasket (10), screw the connecting nut (8) into the sleeve (4), and screw the threaded steel bar (3) into the connecting nut (8); 4) After passing the threaded steel bar (3) through the steel bar through hole on the connecting ear plate (1) and the limiting platform (7), it is anchored with a matching nut (2); 5) Connect the connecting ear plate (1) to the beam or column of the photovoltaic support through a pin.

10. The construction method according to claim 9, characterized in that: Step 5) also includes: adjusting the length of the threaded steel bar (3) between the connecting ear plate (1) and the extrusion anchor adapter by rotating the matching nut (2) to tension the steel strand (5).

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