Wind-resistant anchoring device for photovoltaic array foundation

Abstract

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic array foundation wind-resistant anchoring device which comprises a support used for being connected with an inhaul cable, and a cable-stayed mechanism and a front supporting mechanism are arranged at the two ends of the support respectively. The front supporting mechanism comprises two telescopic pipe sets, and the two ends of the two telescopic pipe sets are supported on the ground and the end face of the support respectively. The front supporting mechanism and the cable-stayed mechanism are arranged at the two ends of the support respectively for supporting and fixing, the front supporting mechanism adopts the design of the telescopic pipe sets and is provided with the synchronous driving mechanism, the cable-stayed mechanism is provided with the cable-stayed mechanism, and the cable-stayed mechanism is provided with the cable-stayed mechanism. The length of the telescopic pipe sets on the two supports can be synchronously adjusted through the synchronous driving mechanism, the consistency and coordination of front supporting force on the two sides are ensured, and therefore the structural stability and safety of the whole flexible photovoltaic support system in the strong wind environment are ensured through the anchoring effect of the supports, the front supporting mechanism and the cable-stayed mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic power generation, and particularly relates to a wind-resistant anchoring device for a photovoltaic array foundation. BACKGROUND

[0002] With the rapid development of renewable energy, the application of photovoltaic power generation technology is becoming more and more widespread. In complex terrains such as mountains, fish ponds, and beaches, traditional fixed photovoltaic supports are greatly limited in application due to their small span, poor adaptability, and other shortcomings. Flexible photovoltaic supports can achieve a large span of 10-45 meters by tensioning a prestressed steel wire rope between two fixed points, and their panel capacity is about three times that of fixed supports, and they have superior crack resistance and wind resistance, so they have become an effective solution to the installation problems in the above-mentioned terrains.

[0003] The end anchoring of the existing flexible photovoltaic support usually uses a steel column outside to set a cable-stayed steel strand, and a counterweight type independent foundation is used to provide uplift resistance. However, this structure still has the hidden danger of insufficient stability when dealing with strong winds, especially extreme conditions such as gusts or typhoons. The instantaneous change of wind load can cause the support structure to produce uncoordinated sway or vibration, the stress on the two anchoring points is uneven, and local stress concentration is easily caused, which may affect the safety of the structure under long-term action.

[0004] Therefore, how to improve the overall stability and wind resistance of the flexible photovoltaic support in a strong wind environment and ensure its long-term safe operation is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to solve the problems of the prior art, such as the instantaneous change of traditional wind load that can cause the support structure to produce uncoordinated sway or vibration, and to provide a wind-resistant anchoring device for a photovoltaic array foundation.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A wind-resistant anchoring device for a photovoltaic array foundation is designed, which includes a support for connecting a cable, and a cable-stayed mechanism and a front support mechanism are arranged at both ends of the support; The front support mechanism includes two telescopic pipe groups, and the two ends of the two telescopic pipe groups are supported on the ground and the end face of the support. A synchronous driving mechanism is further arranged between the two telescopic pipe groups.

[0007] Further, the telescopic pipe group includes: A sleeve pipe and a plug-in pipe are inserted into the inside of the sleeve pipe, wherein a connecting plate is pinned at the end of the sleeve pipe and the plug-in pipe, and the two connecting plates are connected to the ground and the support, respectively.

[0008] Further, the synchronous driving mechanism comprises; A connecting plate is fixedly connected between the two sleeve pipes; A shaft rod is rotatably connected above the connecting plate, and gears are arranged at both ends of the shaft rod, wherein a rack is embedded on the end face of the plug-in pipe, and the gears and the rack are in mesh transmission.

[0009] Further, an opening opposite to the rack is formed on the end face of the sleeve pipe, two wing plates are fixedly installed at the opening of the sleeve pipe, and the gear is rotatably connected between the two wing plates.

[0010] Further, a shaft sleeve is slidably connected to the outer side of the shaft rod and circumferentially locked, a first face gear is fixedly installed at the end of the shaft sleeve, a second face gear is fixedly installed at the end of the gear, the first face gear and the second face gear are in mesh, and a compression spring is fixedly connected between the shaft sleeve and the shaft rod.

[0011] Further, a locking plate is slidably connected to the end face of the sleeve pipe, the end of the locking plate is clamped with the gear, and the locking plate is locked and fixed with the sleeve pipe through fasteners.

[0012] Further, the cable-stayed mechanism comprises a concrete pile fixed to the ground; A connecting assembly is fixedly installed above the concrete pile through fasteners, and a cable-stayed rod is connected between the connecting assembly and the support.

[0013] Further, the connecting assembly comprises a bottom plate fixedly installed on the concrete pile, a fixed seat is fixedly installed above the bottom plate, and a movable seat is slidably connected, a connecting rod is rotatably connected to the middle part of the fixed seat and the movable seat, and the connecting rod is rotatably connected to the end face of the cable-stayed rod through a pin shaft.

[0014] Further, a threaded plate is fixedly installed on the bottom plate, a screw rod is threadedly connected to the end face of the threaded plate, and the end of the screw rod is rotatably connected to the end of the movable seat.

[0015] Further, a flower basket bolt is arranged at the end of the cable-stayed rod.

[0016] The wind-resistant anchoring device for the photovoltaic array foundation has the beneficial effects that: in the present application, the front support mechanism and the cable-stayed mechanism are arranged at both ends of the support to support and fix, the front support mechanism adopts the telescopic pipe group design, and the synchronous driving mechanism is configured, the length of the telescopic pipe group on the two supports can be synchronously adjusted through the synchronous driving mechanism, the consistency and coordination of the front support forces on both sides are ensured, and thus, through the anchoring effect of the support and the front support mechanism and the cable-stayed mechanism, the structural stability and safety of the entire flexible photovoltaic support system in a strong wind environment are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of the present application; Figure 2 is a perspective view of the present application Figure One ; Figure 3 is an enlarged structural schematic view of the A area of Figure 2 ; Figure 4 is a perspective view of the present application Figure Two ; Figure 5 is an enlarged structural schematic view of the B area of Figure 4 ; Figure 6 is a structural schematic view of the front support mechanism of the present application.

[0018] In the figure: 1, support; 10, cable; 2, cable-stayed mechanism; 21, concrete pile; 22, connecting assembly; 221, bottom plate; 222, fixed seat; 223, moving seat; 224, connecting rod; 225, threaded plate; 226, screw; 23, cable-stayed rod; 24, flower basket bolt; 3, front support mechanism; 31, telescopic pipe group; 311, sleeve pipe; 312, plug-in pipe; 32, connecting plate; 4, synchronous driving mechanism; 41, connecting plate; 42, shaft; 43, gear; 44, rack; 45, shaft sleeve; 46, first face gear; 47, second face gear; 48, compression spring; 49, locking plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0020] Referring to Figures 1-6 is one embodiment of the present application, which discloses a wind-resistant anchoring device for a photovoltaic array foundation, specifically the anchoring device is used for flexible photovoltaic support installation, comprising a support 1 for connecting a cable 10, of course, the support 1 described in the present application is provided with two, the cable 10 is fixed between the two supports 1, the cable 10 is used for tensioning and suspending a flexible photovoltaic assembly, so as to constitute a framework of a flexible photovoltaic array, the specific structure and principle thereof is a conventional technical means for a person skilled in the art, and will not be described here. Further, the support 1 described in the present application is in a U-shaped structure as a whole. The U-shaped structure is formed by welding or high-strength bolt connection of two longitudinal H-shaped steels and one transverse H-shaped steel, forming a stable, open force frame.

[0021] The cable 10 is transversely tensioned and fixed to the upper end of the U-shaped support 1, directly bearing photovoltaic panels and wind and snow loads, and the cable-stayed mechanism 2 for providing lateral support is also connected to the same upper end of the support 1, transmitting horizontal forces generated by wind loads and the like to the foundation.

[0022] The cable-stayed mechanism 2 and the front support mechanism 3 are arranged at the two ends of the support 1 respectively; the front support mechanism 3 comprises two telescopic pipe groups 31, the two ends of the two telescopic pipe groups 31 are supported on the ground and the end surface of the support 1 respectively, and a synchronous driving mechanism 4 is further arranged between the two telescopic pipe groups 31.

[0023] That is, the front support mechanism 3 and the cable-stayed mechanism 2 are arranged at the two ends of the support 1 respectively in the present application, the front support mechanism 3 is designed in the form of telescopic pipe groups 31 and is provided with a synchronous driving mechanism 4, the length of the telescopic pipe groups 31 on the two supports 1 can be synchronously adjusted through the synchronous driving mechanism 4, ensuring the consistency and coordination of the front support forces on the two sides, and thus, through the anchoring effect of the support 1 and the front support mechanism 3 and the cable-stayed mechanism 2, the structural stability and safety of the entire flexible photovoltaic support system in a strong wind environment are ensured.

[0024] In some embodiments, the telescopic pipe group 31 comprises: The sleeve pipe 311 and the spigot pipe 312 are inserted into each other, the end of the sleeve pipe 311 and the end of the spigot pipe 312 are both pinned with a connecting plate 32, and the two connecting plates 32 are connected to the ground and the support 1 respectively.

[0025] Further, the cross section of the sleeve pipe 311 and the spigot pipe 312 is square. The square pipe structure can realize circumferential limiting by using its own geometric characteristics, effectively preventing relative rotation between the inner pipe and the outer pipe, thereby ensuring the structural stability of the front support mechanism when bearing pressure.

[0026] Specifically, the two connecting plates 32 are used to support and fix the ends of the sleeve pipe 311 and the spigot pipe 312 in the embodiment of the present application, so that the telescopic pipe group 31 has certain telescopic ability.

[0027] On the basis of the above-mentioned embodiment, the synchronous driving mechanism 4 comprises a connecting plate 41 fixedly connected between the two sleeve pipes 311; A shaft 42 is rotatably connected above the connecting plate 41, the two ends of the shaft 42 are provided with gears 43, the end surface of the spigot pipe 312 is embedded with a rack 44, and the gears 43 and the rack 44 are in meshing transmission.

[0028] When the support length needs to be adjusted, the shaft rod 42 can be driven to rotate, the rotation of the shaft rod 42 drives the gears 43 at both ends to rotate synchronously, since the gears 43 and the racks 44 are in meshing connection, the rotary motion of the gears is converted into the linear motion of the racks 44, and then the two plug-in pipes 312 are synchronously driven to extend or retract in the respective sleeves 311.

[0029] It should be noted that the end surface of the sleeve 311 is provided with an opening facing the rack 44, and the sleeve 311 is fixedly installed with two wing plates at the opening, and the gear 43 is rotatably connected between the two wing plates.

[0030] That is, an opening is formed on the end surface of the sleeve 311, the gear 43 and the rack 44 are meshed through the opening, and the rotation of the gear 43 is constrained by the stable support of the wing plates.

[0031] In an optional embodiment, the shaft sleeve 45 is slidably and circumferentially locked on the outer side of the shaft rod 42, and in this embodiment, the shaft sleeve 45 and the shaft rod 42 are in sliding connection and are circumferentially locked by a key, a spline or the like structure, that is, the two can rotate synchronously, but the shaft sleeve 45 can slide in the axial direction of the shaft rod 42 within a limited range. The end of the shaft sleeve 45 is fixedly installed with a first face gear 46, the end of the gear 43 is fixedly installed with a second face gear 47, the first face gear 46 and the second face gear 47 are in meshing connection, and the shaft sleeve 45 and the shaft rod 42 are fixedly connected with a compression spring 48.

[0032] That is, the shaft rod 42 and the gear 43 are not directly connected, and there is a gap between the ends of the two, the shaft ends of the shaft rod 42 and the gear 43 are connected by the first face gear 46 and the second face gear 47, of course, in other embodiments, the first face gear 46 and the second face gear 47 can also be arranged as friction plates for frictional transmission, and the person skilled in the art can select according to actual needs, which will not be described here.

[0033] Under normal working conditions, the pre-tightening force of the compression spring 48 ensures that the first face gear 46 and the second face gear 47 are in close meshing connection, at this time, the rotation of the shaft rod 42 can drive the gears 43 at both ends to rotate, that is, the plug-in pipe 312 is pushed out in this state to achieve the purpose of tightly pressing the end of the support 1 to ensure the stability of the force of the support 1, and when the pressing force of the support 1 exceeds the preset threshold value, the huge axial force will overcome the elastic force of the compression spring 48, and the shaft sleeve 45 will slide in the axial direction, so that the first face gear 46 and the second face gear 47 are instantaneously separated or relatively slide. At this time, the first face gear 46 and the second face gear 47 are separated, and the plug-in pipe 312 will not be further driven to move outward.

[0034] Of course, in order to ensure that the position of the sleeve 311 and the plug-in pipe 312 is stable in the locked state, a locking plate 49 is slidingly connected to the end face of the sleeve 311, the end of the locking plate 49 is clamped with the gear 43, and the locking plate 49 is locked and fixed with the sleeve 311 through a fastener.

[0035] Optionally, the fastener in the embodiment is provided as a bolt which is threadedly connected to the locking plate 49, and the abutting force of the sleeve 311 on the bolt is used to achieve the circumferential position locking and fixing of the gear 43, and when the circumferential position of the gear 43 is fixed, the length of the sleeve 311 and the plug-in pipe 312 is effectively fixed.

[0036] In some embodiments, the cable-stayed mechanism 2 in the application includes a concrete pile 21 fixed in the ground; A connecting assembly 22 is fixedly installed above the concrete pile 21 through a fastener, and a cable-stayed rod 23 is connected between the connecting assembly 22 and the support 1.

[0037] Optionally, the connecting assembly 22 in the embodiment of the application includes a bottom plate 221 fixedly installed on the concrete pile 21, a fixed seat 222 and a moving seat 223 slidingly connected are fixedly installed above the bottom plate 221, a connecting rod 224 is rotatably connected to the middle part of the fixed seat 222 and the moving seat 223, and the connecting rod 224 is rotatably connected to the end face of the cable-stayed rod 23 through a pin shaft.

[0038] Of course, in order to achieve the position adjustment of the moving seat 223 to ensure that it can adapt to the position adjustment between the two connecting rods 224 and keep the tensioning and fixing of the cable-stayed rod 23, a threaded plate 225 is fixedly installed on the bottom plate 221 in the embodiment, a screw rod 226 is threadedly connected to the end face of the threaded plate 225, and the end of the screw rod 226 is rotatably connected to the end of the moving seat 223.

[0039] When the cable-stayed rod 23 is connected, the bottom plate 221 of the connecting assembly 22 is fixedly installed on the concrete pile 21. One end of the cable-stayed rod 23 is rotatably connected to the connecting rod 224 on the fixed seat 222 through a pin shaft, and the other end is rotatably connected to the connecting rod 224 on the moving seat 223. When the cable-stayed rod 23 needs to be tensioned, the operator rotates the screw rod 226. Since the screw rod 226 and the threaded plate 225 constitute a screw transmission, the rotational motion will be converted into the linear motion of itself. The end of the screw rod 226 pushes or pulls the moving seat 223 to make it slide on the bottom plate 221.

[0040] The sliding of the movable seat 223 changes its relative distance to the fixed seat 222. This displacement is transmitted to the tie rod 23 through the connecting rod 224, thereby directly changing the length and force state of the tie rod 23 to achieve tensioning or relaxation.

[0041] It should be noted that the end of the diagonal tie rod 23 in this embodiment of the invention is provided with a turnbuckle 24, that is, the use of the turnbuckle 24 in this invention provides a way for secondary fine adjustment, which can further improve the adjustment efficiency and convenience.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wind-resistant anchoring device for a photovoltaic array foundation, characterized in that, It includes a bracket (1) for connecting the cable (10), and a diagonal tension mechanism (2) and a front support mechanism (3) are respectively provided at both ends of the bracket (1); The front support mechanism (3) includes two telescopic tube groups (31), with the two ends of the two telescopic tube groups (31) respectively supported on the ground and the end face of the bracket (1); A synchronous drive mechanism (4) is also provided between the two telescopic tube assemblies (31).

2. The photovoltaic array foundation wind-resistant anchoring device according to claim 1, characterized in that: The telescopic tube assembly (31) includes; The sleeve (311) and the insertion tube (312) are inserted into the inside of the sleeve (311). A connecting plate (32) is pinned to the end of both the sleeve (311) and the insertion tube (312). The two connecting plates (32) are respectively connected to the ground and the bracket (1).

3. The photovoltaic array foundation wind-resistant anchoring device according to claim 2, characterized in that: The synchronous drive mechanism (4) includes: A connecting plate (41) is fixedly connected between the two sleeves (311); A shaft (42) is rotatably connected above the connecting plate (41), and gears (43) are provided at both ends of the shaft (42). A rack (44) is embedded on the end face of the insertion tube (312), and the gears (43) and the rack (44) mesh and drive each other.

4. The photovoltaic array foundation wind-resistant anchoring device according to claim 3, characterized in that: The end face of the sleeve (311) is provided with an opening facing the rack (44). Two wing plates are fixedly installed on the sleeve (311) at the opening, and the gear (43) is rotatably connected between the two wing plates.

5. The photovoltaic array foundation wind-resistant anchoring device according to claim 3, characterized in that: A bushing (45) slides and is circumferentially locked on the outer side of the shaft (42). A first face gear (46) is fixedly installed at the end of the bushing (45), and a second face gear (47) is fixedly installed at the end of the gear (43). The first face gear (46) and the second face gear (47) mesh. A compression spring (48) is fixedly connected between the bushing (45) and the shaft (42).

6. The photovoltaic array foundation wind-resistant anchoring device according to claim 3, characterized in that: A locking plate (49) is slidably connected to the end face of the sleeve (311). The end of the locking plate (49) is engaged with the gear (43). The locking plate (49) is locked and fixed to the sleeve (311) by fasteners.

7. The photovoltaic array foundation wind-resistant anchoring device according to claim 1, characterized in that: The cable-stayed mechanism (2) includes concrete piles (21) fixed in the ground. A connecting assembly (22) is fixedly installed above the concrete pile (21) by fasteners, and a tie rod (23) is connected between the connecting assembly (22) and the bracket (1).

8. The photovoltaic array foundation wind-resistant anchoring device according to claim 7, characterized in that: The connecting assembly (22) includes a base plate (221) fixedly installed on the concrete pile (21). A fixed seat (222) is fixedly installed on the top of the base plate (221) and a movable seat (223) is slidably connected thereto. A connecting rod (224) is rotatably connected to the middle of both the fixed seat (222) and the movable seat (223). The connecting rod (224) is rotatably connected to the end face of the tie rod (23) through a pin.

9. A photovoltaic array foundation wind-resistant anchoring device according to claim 8, characterized in that: A threaded plate (225) is fixedly installed on the base plate (221). A screw (226) is threadedly connected to the end face of the threaded plate (225). The end of the screw (226) is rotatably connected to the end of the movable seat (223).

10. A photovoltaic array foundation wind-resistant anchoring device according to claim 8, characterized in that: The end of the tie rod (23) is provided with turnbuckles (24).

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