Photovoltaic support column adjustment mechanism and photovoltaic support

Abstract

A photovoltaic support column adjustment mechanism is arranged between a support surface and a photovoltaic support column, and includes a base, a transition section and an adjustment mechanism. The base is fixedly connected to the support surface, the transition section is fixedly connected to the photovoltaic support column, and the adjustment mechanism is arranged between the base and the transition section. The adjustment mechanism includes a height adjustment mechanism and an angle adjustment mechanism. The height adjustment mechanism has an axial direction and provides the transition section with a degree of freedom of axial movement relative to the base; the angle adjustment mechanism provides the transition section with a degree of freedom of relative axial swing and / or rotation. The photovoltaic support column adjustment mechanism has a simple structure and high reliability, and can realize flexible adjustment of multiple degrees of freedom, so that the photovoltaic support can be deployed on complex terrain. The present invention also provides a photovoltaic support.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic power generation, and in particular relates to a photovoltaic support column adjustment mechanism and a photovoltaic support. Background Art

[0002] With the popularization of photovoltaic power generation technology, more and more photovoltaic power stations are deployed in installation scenarios with complex terrain, such as mudflats, deserts, hills and mountains, where the ground flatness is poor and construction is difficult. These scenes often have rugged terrain and complex geological foundations, which are difficult to fully level or lack a stable piling foundation, resulting in high difficulty in the deployment of photovoltaic power stations. The deviation of ground flatness requires the photovoltaic support column to have a larger range and more degrees of freedom to adjust the margin, so as to fully compensate for the angle deviation caused by terrain factors and improve the efficiency of photovoltaic power generation. However, the adjustment range of the existing photovoltaic support adjustment mechanism is limited, the degree of freedom is small, and the azimuth adjustment function needs to be decomposed into multiple different parts, resulting in a complex photovoltaic support structure, easy accumulation of dimensional errors, and poor adjustment accuracy. Setting positioning holes on different parts will also lead to a decrease in overall strength. Therefore, providing an integrated photovoltaic support column adjustment mechanism with multiple degrees of freedom is of high value for improving the reliability of photovoltaic supports. Summary of the invention

[0003] The purpose of the present invention is to provide a photovoltaic support column adjustment mechanism to improve the terrain adaptability of the photovoltaic support.

[0004] According to an embodiment of one aspect of the present invention, a photovoltaic support column adjustment mechanism is provided, wherein the photovoltaic support column adjustment mechanism is arranged between a support surface and the photovoltaic support column, and comprises a base, a transition section and an adjustment mechanism; wherein the base is fixedly connected to the support surface, the transition section is fixedly connected to the photovoltaic support column, and the adjustment mechanism is arranged between the base and the transition section; the adjustment mechanism comprises a height adjustment mechanism and an angle adjustment mechanism; the height adjustment mechanism has an axial direction, and provides the transition section with a degree of freedom to move along the axial direction relative to the base; the angle adjustment mechanism provides the transition section with a degree of freedom to swing and / or rotate relative to the axial direction.

[0005] The photovoltaic support column adjustment mechanism can realize multi-degree-of-freedom adjustment of the photovoltaic support column in terms of height direction, swing and rotation angle. The structure is simple, and the adjustment mechanisms of each degree of freedom are integrated. There is no need to adjust the structure of parts above the photovoltaic support column, and the overall structural strength of the photovoltaic support is not affected. The photovoltaic support has good versatility.

[0006] Furthermore, in some embodiments, the angle adjustment mechanism is arranged in the axial direction. The angle adjustment mechanism is arranged in the axial direction of the height adjustment mechanism to reduce the complexity of the angle adjustment and simplify the structure.

[0007] Furthermore, in some embodiments, the axial adjustment mechanism includes a support column and a driving device, the length direction of the support column is configured as the axial direction, the driving device is fixed at a distance from the base in the axial direction, and the support column can move relative to the base along the axial direction under the drive of the driving device.

[0008] Further, in some embodiments, the driving mechanism includes a driving worm and a gear, the center of the gear is provided with a center hole, the wall surface around the center hole is provided with an internal thread, the outer peripheral side of the support column is provided with an external thread, the support column is passed through the center hole, and the external thread is meshed with the internal thread, the driving worm is meshed with the gear to allow the driving worm to drive the gear to rotate, so that the support column moves along the axial direction under the meshing action of the internal thread and the external thread. Through the cooperation of the worm, gear and thread structure, stepless adjustment in the axial direction can be achieved.

[0009] Furthermore, in some embodiments, the driving mechanism is fixedly disposed relative to the base, and the angle adjustment mechanism is fixedly disposed at a distal end of the support column relative to the base.

[0010] Furthermore, in some embodiments, the angle adjustment mechanism includes a spherical joint and a locking mechanism. The spherical joint can achieve infinite adjustment of the angle.

[0011] Furthermore, in some embodiments, the locking mechanism is configured as a locking pin.

[0012] Furthermore, in some embodiments, the height adjustment mechanism also includes a height limiting device, which limits the movement of the transition section in the axial direction; the angle adjustment mechanism also includes an angle limiting device, which limits the swing amplitude of the transition section relative to the axial direction.

[0013] Furthermore, in some embodiments, the base is provided with fixing holes at the bottom thereof, and the fixing holes are used for fixing the base to the support surface, and at least some of the fixing holes are configured as long holes. The long holes allow the base to be slightly adjusted in translation along the length direction of the long holes during installation, further improving the flexibility of installation.

[0014] According to another embodiment of the present invention, there is provided a photovoltaic support, comprising a photovoltaic support column, wherein the photovoltaic support column is connected to a supporting surface using the photovoltaic support column adjustment mechanism provided in any of the aforementioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the structure of a photovoltaic support column adjustment mechanism in one embodiment;

[0016] Figure 2 This is a schematic diagram of the support column structure in one embodiment;

[0017] Figure 3 This is a schematic diagram of the structure of the upper cover of the base in one embodiment;

[0018] Figure 4 This is a schematic diagram of a partial structure of a height adjustment mechanism in one embodiment;

[0019] Figure 5 This is a schematic diagram of the structure of a base in one embodiment;

[0020] Figure 6 It is a schematic diagram of the longitudinal section structure of the photovoltaic support column adjustment mechanism in one embodiment.

[0021] The meaning of the accompanying drawings: 11-base; 111-support column mounting hole; 112-long hole; 12-base shell; 13-base cover; 131-support column through hole; 132-bearing support; 133-bearing groove; 21-height adjustment mechanism; 211-support column; 212-limiting plate; 213-external thread; 214-center hole; 215-gear bearing; 216-gear; 217-worm; 218-worm bearing; 219-drive motor; 22-angle adjustment mechanism; 221-joint ball head; 222-locking pin; 223-limiting sleeve; 224-joint sleeve; 3-transition section; 31-transition section flange; 4-photovoltaic bracket column.

[0022] The purpose of the above drawings is to further explain the present invention in detail so that those skilled in the art can understand the technical concept of the present invention, but it is not intended to limit the present invention. For the sake of simplicity, the above drawings only schematically illustrate the structure related to the technical features of the present invention, and do not strictly draw the complete structure and all details according to the actual proportion. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The phrase appearing in various locations in the specification does not necessarily refer to the same embodiment, nor is it limited to mutually exclusive independent or alternative embodiments. Those skilled in the art should be able to understand that the embodiments herein may be combined with other embodiments without causing structural conflicts.

[0025] In the description of this article, unless otherwise clearly specified and limited, the technical terms "installed", "connected", "connected" and the like should be understood in a broad sense, which can be a movable connection, a fixed connection or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0026] In the description of this document, terms indicating orientation or positional relationships, such as "up", "down", "left", "right", "horizontal", "vertical", "height", "length", and "width", are intended to accurately describe the embodiments and simplify the description, but are not intended to limit the parts or structures involved to have a specific orientation, be installed or operate in a specific orientation, and should not be construed as a limitation on the embodiments in this document.

[0027] In the description of this article, the terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating relative importance or limiting the quantity, specific order or primary and secondary relationship of the described technical features. In the description of this article, the meaning of "plurality" is at least two.

[0028] In scenes with poor flatness such as mountains, tidal flats or sandy land, it is often difficult to ensure that the columns of photovoltaic brackets are installed vertically during the piling process. On the one hand, the tilt of the columns will cause the photovoltaic modules to deviate from the preset tilt angle, resulting in reduced power generation efficiency. On the other hand, the inconsistent tilt directions of multiple columns of the same photovoltaic module will also cause the photovoltaic bracket to bear additional stress, making it difficult to complete assembly or even deform and damage. The current photovoltaic bracket columns are difficult to adjust and compensate for height and angle, so a lot of cost is required to level the ground, and in some scenarios, it is even impossible to deploy photovoltaic power stations.

[0029] In order to solve the above problems, an embodiment of one aspect of the present invention provides a photovoltaic bracket, wherein the local structure of the photovoltaic bracket is as follows: Figure 1 As shown, the photovoltaic support column 4 is fixed on the support surface (not shown) by the photovoltaic support column adjustment mechanism, and the photovoltaic support column adjustment mechanism provides the photovoltaic support column 4 with the degree of freedom of adjustment of height and angle, so that the photovoltaic support column can also meet the deployment requirements of the photovoltaic module on the support surface with a certain inclination and drop. Among them, the support surface can be a hardened ground, a natural rock surface, or a metal or concrete pile foundation buried in sand, soil or other soft surfaces.

[0030] The photovoltaic support column adjustment mechanism includes a base, a height adjustment mechanism 21, an angle adjustment mechanism 22 and a transition section 3. The base includes a base base 11 fixedly connected to the support surface, a base shell 12 and a base cover 13; the upper end of the transition section 3 is fixedly connected to the photovoltaic support column 4; the height adjustment mechanism 21 and the angle adjustment mechanism 22 are arranged between the base and the transition section 3, respectively providing axial height adjustment freedom and relative axial swing and / or rotation freedom; in a preferred embodiment, the angle adjustment mechanism 22 is arranged in the axial direction of the height adjustment mechanism 21. In a further preferred embodiment, combined with Figure 2 The height adjustment mechanism 21 includes a support column 211 and a driving device. The length direction of the support column 211 is the axial direction of the height adjustment mechanism 21, and the driving device is fixed relative to the base in the axial direction. In some embodiments, the driving device is directly fixed to the base so that the support column 211 remains vertical relative to the base, and the angle adjustment mechanism 22 is fixedly arranged at the far end of the support column 211 relative to the base; in other embodiments, the angle adjustment mechanism 22 is fixedly connected to the base, and the driving device is fixedly connected to the angle adjustment mechanism 22 so that the angle adjustment mechanism 22 can adjust the angle direction of the support column 211.

[0031] In a preferred embodiment, the structure of the height adjustment mechanism 21 is as follows: Figure 2 , Figure 4 and Figure 6 As shown. The driving device includes a worm 217 arranged laterally and fixedly mounted in the base housing 12, a gear 216 arranged horizontally, and a driving motor 219 arranged outside the base housing 12. A center hole 214 is arranged in the middle of the gear 216, and an internal thread is arranged on the inner wall of the center hole 214; an external thread 213 is arranged on the circumferential surface of the support column 211 and penetrates into the center hole 214, so that the external thread 213 is meshed with the internal thread in the center hole 214, and the gear 216 is meshed with the worm 217. The driving motor 219 can drive the worm 217 to rotate, and then drive the gear 216 to rotate. Under the meshing action of the internal thread of the center hole 214 and the external thread 213 on the circumferential surface of the support column 211, the circumferential rotation of the gear 216 is converted into the axial movement of the support column 211, thereby realizing the axial position adjustment. The worm 217 is connected to the base housing 12 through a worm bearing 218, and gear bearings 215 are respectively provided on the upper and lower sides of the gear 216 to reduce the friction during the rotation process. Figure 5A support column mounting hole 111 is provided on the base 11, and a support column 211 is inserted into the support column mounting hole 111. A limiting plate 212 is provided at the bottom of the support column 211. The diameter of the limiting plate 212 is larger than the aperture of the support column mounting hole 111, so that the support column mounting hole 111 forms an axial limit on the support column 211, limiting the upward movement of the support column 211; at the same time, the bottom of the base 11 naturally forms a limit on the support column 211, limiting the downward movement of the support column 211.

[0032] In other embodiments, the height adjustment mechanism may also be replaced by a mechanical structure such as a gear-rack structure that can adjust the axial position.

[0033] In a preferred embodiment, the structure of the angle adjustment mechanism 22 is as follows: Figure 2 , Figure 3 , Figure 6 As shown. The angle adjustment mechanism includes a joint ball head 221, the lower end of which is fixedly connected to the support column 211, the upper half of the joint ball head 221 is accommodated in a joint sleeve 224, and the upper end of the joint sleeve 224 is fixedly connected to the transition section 3; the joint ball head 221 and the joint sleeve 224 are integrally accommodated in a limiting sleeve 223, the limiting sleeve 223 is fixedly connected to the top of the base upper cover 13, and four locking pins 222 are circumferentially arranged through the limiting sleeve 223. The joint sleeve 224 can rotate or swing around the joint ball head 221, thereby allowing the transition section 3 to swing, rotate, or a combination of swinging and rotating relative to the axial direction of the support column 211. The locking pin 222 can be tightened in abutment against the surface of the joint sleeve 224 or the transition section 3 to form a lock to fix the orientation of the transition section 3 (including the swinging direction, angle and rotation angle). The diameter of the limiting sleeve 223 forms a limit on the swing amplitude of the transition section 3, limiting the axial swing stroke of the transition section 3 relative to the support column 211. In other embodiments, the locking pin 222 can also be replaced by a tightening locking sleeve or a friction limiting block or other locking devices suitable for the joint ball head.

[0034] In a preferred embodiment, if Figure 5 As shown, the bottom surface of the base 11 is provided with a plurality of long holes 112 . During the installation process, the base 11 can be adjusted in a small range of translation along the length direction of the long holes 112 , so as to further optimize the installation position of the photovoltaic support column 4 .

[0035] In a preferred embodiment, having Figures 1 to 6 The installation process of the photovoltaic bracket of the structure shown is as follows:

[0036] First, assemble the photovoltaic support column adjustment mechanism: insert the support column 211 from the lower end of the base 11 and pass it through the support column mounting hole 111; sleeve the lower gear bearing 215 on the support column 211 and install it on the base 11; sleeve the gear 216 on the support column 211 so that the internal thread of the center hole 214 is meshed with the external thread of the support column 211, rotate the gear 216 until the lower surface abuts against the lower gear bearing 215, and install the upper gear bearing 215; install the worm 217 and worm bearing 218, so that worm 217 meshes with gear 216; install base shell 12 and base cover 13, so that worm bearing 218 is clamped on bearing support 132, gear bearing 215 above is clamped on bearing groove 133, support column 211 passes through support column through hole 131 and enters fiber sleeve 223; joint sleeve 224 is sleeved on joint ball head 221; drive motor is connected to the end of worm 217 extending out of base shell 12, and the assembly of photovoltaic support column adjustment mechanism is completed. This assembly process can be implemented at the deployment site of photovoltaic power station, or it can be pre-assembled before the parts leave the factory and sent to the construction site in the form of parts assembly.

[0037] Next, determine the installation position of the photovoltaic bracket column of the photovoltaic bracket, arrange the photovoltaic bracket column adjustment mechanism on the support surface, first set fixing bolts in a pair of unidirectional long holes 112 of the base 11, and after the setting is completed, fine-tune the position of the base along the direction of the long holes, and then install other fixing bolts and tighten them.

[0038] After the photovoltaic support column adjustment mechanism is installed at each column installation position of the photovoltaic support, the inclination angle and relative drop of the support surface at each installation position are measured, and the height and angle adjustments are performed according to the measurement results. The axial position of the support column 211 is adjusted to compensate for the height drop. Due to the characteristics of the worm gear transmission, after the support column 211 is adjusted into place, the meshing relationship between the worm 217 and the gear 216 naturally locks the support column 211, so that the support column 211 will no longer move axially. Then swing and / or rotate the transition section 3 to adjust the angular direction of the transition section 3. After adjusting to the vertical state, tighten each locking pin 222 so that the locking pin 222 abuts against the surface of the transition section 3 to form a lock, and fix the transition section 3 in the adjusted position.

[0039] Finally, assemble the photovoltaic support column, install the bottom end of the photovoltaic support column 4 on the transition section flange at the top of the transition section 3, complete the installation of the photovoltaic support column 4, and further complete the construction of the photovoltaic support and the deployment of the photovoltaic power station based on the photovoltaic support column 4.

[0040] It should be understood that the above installation process is not unique, and the above steps may be adaptively adjusted or optimized according to the structure of the photovoltaic support column adjustment mechanism in different embodiments and the deployment conditions of the construction site.

[0041] The photovoltaic bracket column adjustment mechanism provided in the above embodiment can provide multi-degree-of-freedom stepless adjustment to meet the deployment requirements of photovoltaic power stations under complex terrain conditions; the adjustment mechanisms with different degrees of freedom adopt an integrated design, which simplifies the overall structure and improves the reliability of the device; there is no need to change the structure of other parts of the photovoltaic bracket, and it can effectively adapt to existing photovoltaic bracket products.

[0042] The purpose of the above embodiments is to further explain the present invention in detail in conjunction with the accompanying drawings so that those skilled in the art can understand the technical concept of the present invention. Within the scope of the present invention, the optimization or equivalent replacement of the part structures and method steps involved, as well as the combination of implementation methods in different embodiments without conflict of structure and principle, all fall within the protection scope of the present invention.

Claims

1. A photovoltaic support column adjustment mechanism, characterized in that: The photovoltaic support column adjustment mechanism is arranged between the support surface and the photovoltaic support column, and includes a base, a transition section and an adjustment mechanism; wherein, The base is fixedly connected to the support surface, the adapter section is fixedly connected to the photovoltaic support column, and the adjustment mechanism is arranged between the base and the adapter section; The adjustment mechanism includes a height adjustment mechanism and an angle adjustment mechanism; the height adjustment mechanism has an axial direction and provides the transition section with a degree of freedom to move along the axial direction relative to the base; the angle adjustment mechanism provides the transition section with a degree of freedom to swing and / or rotate relative to the axial direction; The axial adjustment mechanism includes a support column and a driving device, the length direction of the support column is configured as the axial direction, the driving device is fixed at a distance from the base in the axial direction, and the support column can move relative to the base along the axial direction under the drive of the driving device; the driving mechanism includes a driving worm and a gear, the center of the gear is provided with a center hole, the wall surface on the circumferential side of the center hole is provided with an internal thread, the outer circumferential side of the support column is provided with an external thread, the support column is penetrated by the center hole, and the external thread is meshed with the internal thread, and the driving worm is meshed with the gear to allow the driving worm to drive the gear to rotate, so that the support column moves along the axial direction under the meshing action of the internal thread and the external thread; the driving mechanism is fixedly arranged relative to the base, and the angle adjustment mechanism is fixedly arranged at the far end of the support column relative to the base; The angle adjustment mechanism includes a joint ball head and a locking mechanism, wherein the locking mechanism is configured as a locking pin, and the bottom of the transition section is fixedly connected with a joint sleeve, and the upper half of the joint ball head is accommodated in the joint sleeve; the top of the base is fixedly connected with a limiting sleeve, and the joint ball head and the joint sleeve are accommodated in the limiting sleeve as a whole; four locking pins are provided and circumferentially penetrate the limiting sleeve, and the locking pin can abut against the surface of the joint sleeve or the transition section to form a lock to fix the orientation of the transition section.

2. According to the photovoltaic support column adjustment mechanism according to claim 1, the angle adjustment mechanism is arranged in the axial direction.

3. The photovoltaic support column adjustment mechanism according to claim 1 or 2, characterized in that: The height adjustment mechanism also includes a height limiting device, which limits the movement of the transition section in the axial direction; the angle adjustment mechanism also includes an angle limiting device, which limits the swing amplitude of the transition section relative to the axial direction.

4. The photovoltaic support column adjustment mechanism according to claim 1 or 2, characterized in that: The bottom of the base is provided with fixing holes, and the fixing holes are used for fixing the base to the supporting surface, and at least part of the fixing holes are configured as long holes.

5. A photovoltaic support, comprising a photovoltaic support column, characterized in that: The photovoltaic support column is connected to the support surface through the photovoltaic support column adjustment mechanism as described in any one of claims 1 to 4.

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