Fence for a desert photovoltaic field
Patent Information
- Application Number
- CN202522277440.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0002]在沙漠地区建设大规模光伏发电场是开发利用清洁能源的重要途径，然而，该环境常年伴有强风，地表为松散的沙质土壤，极易引发强烈的风沙活动，风沙流会侵蚀光伏电站的基础设施，特别是会磨蚀、损坏光伏组件表面，并导致场区围栏的地基被掏空，稳定性下降；且沙尘在组件表面大量沉积，会显著降低其发电效率，频繁的清洁工作则大幅增加了运维成本，而围栏作为光伏场区的边界和防护设施，不仅承担着划定区域、安全防护的基本功能，在沙漠特殊环境中，更被赋予了防风固沙、保障场区内部设备安全的重要使命
本实用新型通过若干个地锚插入沙土中，然后利用驱动组件带动若干个锚定板从地锚内伸出插入沙土中，固沙网覆盖在沙土上，增加防风网和固沙网的稳定性，再通过连接组件将若干个防风网和固沙网相互连接，对光伏场进行围合，通过竖向的防风网和水平的固沙网形成立体防护体系，在确保围栏稳定性的同时阻滞风沙。
Smart Images
Figure CN224785465U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fence technology, and in particular relates to a fence for a desert photovoltaic field. Background Technology
[0002] Constructing large-scale photovoltaic power plants in desert areas is an important way to develop and utilize clean energy. However, this environment is accompanied by strong winds all year round, and the surface is loose sandy soil, which can easily cause strong wind and sand activities. The wind and sand will erode the infrastructure of the photovoltaic power station, especially the surface of the photovoltaic modules, and cause the foundation of the site fence to be hollowed out, resulting in a decrease in stability. Moreover, the large amount of sand and dust deposited on the surface of the modules will significantly reduce their power generation efficiency, and frequent cleaning work will greatly increase the operation and maintenance costs. As the boundary and protection facility of the photovoltaic site, the fence not only undertakes the basic functions of demarcating the area and providing security protection, but also, in the special environment of the desert, is given the important mission of preventing wind and sand and ensuring the safety of equipment inside the site.
[0003] When a fence is fixed by directly burying posts or using shallow concrete, its lower part becomes a channel for wind and sand flow. The strong wind and sand flow will continuously erode and wash away the sand and soil at the bottom of the fence posts and under the mesh, forming obvious wind erosion pits. This causes the foundation of the fence to lose effective sand and soil support, resulting in the bottom being suspended. This causes the anchoring force of the posts to drop sharply, affecting its stability. Utility Model Content
[0004] The purpose of this invention is to provide a fence for desert photovoltaic fields that can block wind and sand while ensuring the stability of the fence.
[0005] The aforementioned fence for a desert photovoltaic field includes a vertically installed windbreak net. Fixed rods are fixed on both the left and right sides of the windbreak net. A base plate is installed at the bottom of each fixed rod. The two base plates are connected by a sand-fixing net. Several ground anchors are installed at the bottom of the base plates. Several anchor plates are installed on the ground anchors. A driving component is installed inside the ground anchor to drive the anchor plates to extend out of the ground anchor. The fixed rods are connected to adjacent fixed rods through connecting components.
[0006] Furthermore, the drive assembly includes two chambers located within the ground anchor. The two chambers are connected and communicate with each other through a through hole. A threaded rod that connects the two chambers and rotates freely is installed in the through hole. The top end of the threaded rod passes through the base plate and is connected to a knob. Two push blocks that are threadedly engaged with the threaded rod are fitted on each of the two threaded rods. The two push blocks are located in the two chambers respectively. The push blocks are frustum-shaped. Several anchoring plates are slidably connected to the sidewalls of the push blocks through rollers. Several through slots for the anchoring plates to extend are opened on the sidewalls of the ground anchor.
[0007] Furthermore, the connecting assembly includes a mounting plate fixed on a fixed rod. The mounting plate has an "L"-shaped structure, a limiting plate is hinged to the mounting plate, a slot is provided at the bottom of the limiting plate, and a locking block is provided on the connecting plate to engage with the slot.
[0008] Furthermore, the bottom of the side wall of the push block is provided with several sliders, and the interior of the cavity is provided with several sliding grooves that slide up and down with the sliders.
[0009] Furthermore, the knob has a fixing hole, a screw is inserted into the fixing hole, and the top of the base plate has several threaded holes that are threaded to it.
[0010] Furthermore, the anchoring plate is located inside the ground anchor, and the outer wall of the anchoring plate is on the same horizontal plane as the outer wall of the ground anchor.
[0011] Furthermore, the fixing rod is provided with a plug, and a slot is provided on the side wall of the adjacent connecting plate for mutual insertion of the plug.
[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention uses several ground anchors inserted into the sand, and then uses a driving component to drive several anchor plates to extend from the ground anchors and insert into the sand. The sand-fixing net covers the sand, increasing the stability of the windbreak net and the sand-fixing net. Then, the several windbreak nets and sand-fixing nets are connected to each other by a connecting component to enclose the photovoltaic field. The vertical windbreak net and the horizontal sand-fixing net form a three-dimensional protection system, which ensures the stability of the fence while blocking wind and sand. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the structure of the ground anchor; Figure 3 This is a perspective view of the present utility model; Figure 4 for Figure 3 Schematic diagram of the internal structure of the ground anchor; The components in the diagram are named as follows: 1. Windproof net; 2. Fixing rod; 3. First connecting plate; 4. Limiting plate; 5. Locking block; 6. Mounting plate; 7. Base plate; 8. Ground anchor; 9. Anchoring plate; 10. Sand stabilizing net; 11. Second connecting plate; 12. Screw; 13. Knob; 14. Push block; 15. Slide groove; 16. Threaded rod; 17. Slider; 18. Roller; 19. Rolling groove; 20. Slot. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
[0015] Example This embodiment describes a fence for a desert photovoltaic field, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the windbreak net 1 is vertically arranged. Fixed rods 2 are fixed on both the left and right sides of the windbreak net 1. The bottom of each fixed rod 2 is provided with a base plate 7. The two base plates 7 are connected by a sand-fixing net 10. Several ground anchors 8 are provided at the bottom of the base plate 7. Several anchor plates 9 are provided on the ground anchors 8. A driving component for driving the anchor plates 9 to extend out of the ground anchor 8 is provided inside the ground anchor 8. The fixed rods 2 are connected to the adjacent fixed rods 2 through connecting components. The windproof net 1 and the fixed rods 2 on the left and right sides form a windproof frame. A base plate 7 is welded to the bottom of each of the two fixed rods 2. A sand-fixing net 10 is placed between the two base plates 7. Several ground anchors 8 are installed at the bottom of the base plates 7, and several anchoring plates 9 are installed inside the ground anchors 8. A driving component pushes the anchoring plates 9 out of the ground anchors 8. The driving component includes a groove on the top of the ground anchor 8. Several through slots are arranged in a circular array along the center of the groove on the inner wall of the groove. Each through slot contains an anchoring plate 9. A sliding groove is also provided within the through slot, and a sliding mating device is installed within the sliding groove. A sliding block, fixed to the side wall of the anchor plate 9, allows the anchor plate 9 to move within the groove and through slot until the outer wall of the anchor plate 9 extends beyond the outer wall of the ground anchor 8. The inner wall of the anchor plate 9 is inclined, and a rod is inserted into the groove. The bottom of the rod engages with the inner wall of the anchor plate 9 in a wedge shape. A through hole is provided at the top of the base plate 7, through which the top of the rod passes and connects to the fixing plate. A fixing rod is provided at the bottom of the fixing plate, and corresponding insertion holes are provided on the base plate 7 for interlocking with the fixing rod. In use, the ground anchor 8 is inserted into the sand. The bottom of the ground anchor 8 is cone-shaped, which is more conducive to insertion into the desert. The insertion rod is inserted into the groove, with its bottom end wedge-shaped into the inner wall of several anchor plates 9. This pushes the anchor plates 9 to move within the groove and extend outward from the outer wall of the ground anchor 8. Several anchor plates 9 pierce outward into the desert, increasing the stability of the ground anchor 8. The bottom of the fixing plate at the top of the insertion rod contacts the top of the base plate 7, and the fixing rod at the bottom of the fixing plate interlocks with the insertion hole, thus fixing the position of the insertion rod. This ensures the stability of the base plate 7 and the sand-fixing net 10 in covering the desert, as well as the stability of the windbreak net 1. Furthermore, the desert terrain is uneven, so when the base plate 7 is placed on the sand... When placing the sand, use a shovel or other tools to spread it out evenly, ensuring that the bottom plate 7 is in contact with the sand and ensuring the stability of the ground anchor 8 inserted into the sand. The vertical windbreak net 1 acts as a barrier, significantly reducing the wind speed in the area behind the net by blocking and lifting the airflow, and is responsible for changing the movement structure of the sand flow. The sand-fixing net 10 is responsible for fixing the surface sand particles and preventing them from starting and moving. The three-dimensional protection of "fixing below and blocking above" cuts off the formation of the sand flow from the root. Even if a small amount of sand particles are blown up from outside the sand-fixing net area, they will be effectively intercepted by the vertical windbreak net and cannot drive straight into the photovoltaic field. The fixing rod 2 is connected to adjacent fixing rods 2 via a connecting assembly, thereby connecting several windbreak nets 1 to each other. The connecting assembly includes a limiting groove at the top of the fixing rod 2, and an "L"-shaped limiting plate on the side wall of the adjacent fixing rod 2. The vertical plate of the limiting plate is inserted into the limiting groove from top to bottom. The inner wall of the limiting groove has a threaded hole, and a screw is threaded into the threaded hole. The tightening end of the screw abuts against the side wall of the limiting plate. A limiting groove is provided on one side of the fixing rod 2 of a windbreak net 1, and a limiting groove is provided on the other side of the fixing rod 2 of the same windbreak net 1. When using the plate, insert the limiting plate into the limiting groove, tighten the screws so that the top end of the plate presses against the side wall of the limiting plate, and then firmly fix the limiting plate in the limiting groove. Connect the two fixing rods 2 to each other. Repeat the above operation to connect several windproof nets 1 to each other to enclose the photovoltaic field. The vertical sandproof net can effectively block and reduce wind speed, causing sand and dust to settle in front of the net, thereby significantly reducing the amount of sand and dust blown towards the photovoltaic panel and keeping the surface of the photovoltaic panel relatively clean. As the first line of defense, the sandproof net protects the photovoltaic panel from direct abrasion by wind and sand. like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the drive assembly includes two chambers located within the ground anchor 8, connected by a through hole. A threaded rod 16, freely rotating and connecting the two chambers, is installed within the through hole. The top of the threaded rod 16 passes through the base plate 7 and connects to the knob 13. Two threaded push blocks 14 are fitted onto each threaded rod 16, located within the two chambers respectively. Each push block 14 is frustum-shaped, and several anchoring plates 9 are slidably connected to its sidewall via rollers 18. Several through slots for the anchoring plates 9 to extend from the sidewall of the ground anchor 8 are provided. The ground anchor 8 contains two chambers connected by a through hole, through which the threaded rod 16 passes. The threaded rod 16 is rotatably connected to the two chambers via bearings. Countersunk holes are provided at the top inner wall of the upper chamber and the bottom inner wall of the lower chamber, each containing a bearing. The outer ring of each bearing is welded to the inner wall of the countersunk hole. The inner ring of each bearing is welded with the end of a threaded rod 16. The threaded rod 16 rotates freely in the two chambers through the bearing. The bottom plate 7 has a fixing hole, and the top of the threaded rod 16 passes through the fixing hole and connects to the knob 13. Two push blocks 14 are fitted on each threaded rod 16. The push block 14 is frustum-shaped and has a threaded hole that is open at the top and bottom. The threaded hole is threaded with the threaded rod 16. The side wall of the push block 14 has a rolling groove 19. A roller 18 is slidably fitted in the rolling groove 19. One end of the roller 18 is connected to the anchor plate 9. The other end of the anchor plate 9 extends into the through groove of the side wall of the ground anchor 8. The inner wall of the rolling groove 19 has a limit groove. A limit plate is fixed to the roller 18 in the limit groove. The limit plate controls the movement of the roller 18 and prevents the roller 18 from disengaging from the rolling groove 19. The roller 18 drives the anchor plate 9 to move on the inclined surface of the push block 14. In use, rotating the knob causes the threaded rod 16 to rotate within the two chambers and the through hole. The rotation of the threaded rod 16 causes the two threaded push blocks 14 to move upwards within their respective chambers. The upward movement of the push blocks 14 drives the roller 18 to move within the groove, thereby causing the anchor plate 9 to extend from the through groove beyond the ground anchor 8. The anchor plate 9 is inserted into the desert, increasing the stability of the ground anchor 8 and making the base plate 7 and sand-fixing net 10 more stable on the desert surface. Multiple anchor plates 9 inserted into the sand provide a large contact area with the sand, offering multiple anchoring effects and multiplying stability. Rotating the knob 13 allows precise control of the timing and depth of the anchor plate 9's extension, ensuring it is fully extended and reaches the predetermined anchoring position. Reversing the knob 13 retracts the anchor plate 9, easily pulling the ground anchor 8 out of the sand. This makes the layout adjustment, maintenance, or recycling of the sand-fixing net 10 very convenient, enabling reusability and reducing long-term costs. The stable sand-fixing net 10 effectively consolidates surface sand particles, increasing the surface area of the photovoltaic panel. The dust velocity will be significantly reduced, the light transmittance will remain higher, and the power generation efficiency loss will be smaller. The anchor plate 9 is inclined, with the top of the anchor plate 9 facing the outside of the ground anchor 8 and the bottom of the anchor plate 9 facing the inside of the cavity. After being inclined, the top edge of the anchor plate 9 will contact and cut into the sand first, with low unfolding resistance, ensuring smooth insertion into the sand. Since the anchor plate 9 is inclined towards the inside of the ground anchor 8, the direction of this component force is downward. The more you try to pull out the ground anchor 8, the deeper this force will press the anchor plate 9 into the surrounding denser sand layer, thus forming a mechanical self-locking to resist pulling out. After being fully unfolded and bearing weight, the anchor plate 9 mainly bears the pressure from the sand above. The inclined design allows this pressure to be transmitted more along the plane of the anchor plate 9, and finally transmitted to the push block 14 and the strong threaded rod 16 through the roller 18. The flow transmission path is smoother, avoiding excessive bending moment at the root of the anchor plate 9, thereby reducing the risk of bending or breaking of the anchor plate 9 and improving the reliability and durability of the entire ground anchor 8. Anchor plate 9 is located inside ground anchor 8, and the outer wall of anchor plate 9 is on the same horizontal plane as the outer wall of ground anchor 8. Ground anchor 8 has a smooth and continuous outer surface during installation, which ensures that ground anchor 8 can be hammered and pressed into sand like a nail with minimal resistance and effectively protects the fragile internal anchor plate 9 from damage during installation. This precise fit achieves a physical seal, which minimizes the channels for external sand and dust to enter the internal cavity, providing a relatively clean working environment for the drive components and ensuring that anchor plate 9 can be deployed smoothly and reliably when needed. Furthermore, the bottom of the side wall of the push block 14 is provided with several sliders 17, and the cavity is provided with several grooves 15 that slide up and down with the sliders 17; the bottom of the side wall of the push block 14 is welded with several sliders 17 arranged in a circular array along the center line of the push block 14, and the cavity is provided with grooves 15 that slide with them. Through the up and down sliding cooperation of the grooves 15 and the sliders 17, the push block 14 moves up and down in the cavity more smoothly and stably, further restricting the position of the push block 14 in the cavity, so that it drives the anchor plate 9 to extend out from the ground anchor 8 and insert into the sand for anchoring, further improving the stability of the ground anchor 8; A fixing hole is provided on the knob 13, and a screw 12 is inserted into the fixing hole. Several threaded holes with threaded engagement are provided on the top of the base plate 7. The screw 12 is inserted into the fixing hole of the knob 13 and is threaded into the several threaded holes on the top of the base plate 7. When the knob 13 drives the threaded rod 16 to rotate, it causes the push block 14 to move and push the anchor plate 9 to insert into the sand. The screw 12 corresponds to any one of the threaded holes, and then the screw 12 is screwed into the threaded hole to fix the knob 13 and ensure the stability of the anchor plate 9. When the threaded rod 16 rotates to different degrees, the push block 14 moves and causes the anchor plate 9 to extend out of the ground anchor 8 by different lengths. The extension length of the anchor plate 9 can be positioned to ensure the stability of the ground anchor 8 by several anchor plates 9. like Figure 1 and Figure 3As shown, the connecting assembly includes a mounting plate 6 fixed to the fixed rod 2. The mounting plate 6 has an "L"-shaped structure, and a limiting plate 4 is hinged to the mounting plate 6. The limiting plate 4 has a slot at its bottom, and a locking block 5 is provided on the connecting plate to engage with the slot. The mounting plate 6 is welded or glued to the fixed rod 2, and the limiting plate 4 is hinged to the mounting plate 6. The limiting plate 4 has a slot at its bottom, and a locking block 5 is welded or glued to the side wall of the connecting plate adjacent to the fixed rod 2 to engage with the slot. Rotating the limiting plate 4 causes it to rotate around the hinge, and the slot at the bottom of the limiting plate 4 engages with the locking block 5, thereby connecting the fixed rod 2 to the adjacent connecting plate. The front and rear side walls of one fixed rod 2 are connected to the adjacent connecting plate through two vertically distributed connecting assemblies, allowing for the disassembly and assembly of multiple windproof nets 1. It is more convenient to use; and the connecting plate has two shapes, the first connecting plate 3 and the second connecting plate 11. The top cross section of the first connecting plate 3 is in the shape of "I", which is mostly suitable for installing multiple horizontal windbreak nets 1. The top cross section of the second connecting plate 11 is in the shape of "L", which is mostly suitable for places where bends are needed. Multiple windbreak nets 1 can be combined into an enclosed structure. Different connecting plates are used for different installation needs, making it easier to assemble and disassemble. The fixing rod 2 is provided with a plug, and the corresponding plug has a slot 20 on the side wall of the adjacent connecting plate to be inserted into it. The side wall of the connecting plate has a number of slots 20, and the side wall of the adjacent fixing rod 2 has a number of plugs to be inserted into it. By inserting the plugs into the sand-fixing net 10, the connection between the fixing rod 2 and the connecting plate is more stable. In actual use, several ground anchors 8 at the bottom of the base plate 7 are inserted into the sand, and the bottom of the base plate 7 is in contact with the sand. The sand-fixing net 10 between the two base plates 7 covers the sand, fixing the surface sand, reducing dust, and preventing wear on the photovoltaic panel surface. Then, the driving component drives several anchor plates 9 inside the ground anchors 8 to extend out and insert into the sand, increasing the stability of the ground anchors 8. Then, the connecting component connects several windproof nets 1 to each other to enclose the photovoltaic field. The windproof nets 1 on the two base plates 7 reduce wind and sand. The vertical windproof nets 1 and the horizontal sand-fixing nets 10 form a three-dimensional protection system, which greatly improves the sand-fixing effect, ensuring its stability while improving its sand-fixing effect.
Claims
1. A fence for a desert photovoltaic field, comprising a vertically installed windproof net (1), characterized in that: The windbreak net (1) is fixed with fixed rods (2) on both the left and right sides. The bottom of each fixed rod (2) is provided with a base plate (7). The two base plates (7) are connected by a sand-fixing net (10). Several ground anchors (8) are provided at the bottom of the base plate (7). Several anchor plates (9) are provided on the ground anchors (8). A driving component is provided inside the ground anchors (8) to drive the anchor plates (9) to extend out of the ground anchors (8). The fixed rods (2) are connected to the adjacent fixed rods (2) through the connecting component.
2. The fence for a desert photovoltaic field according to claim 1, characterized in that: The drive assembly includes two chambers opened in the ground anchor (8). The two chambers are connected by a through hole. A threaded rod (16) that connects the two chambers and can rotate freely is provided in the through hole. The top of the threaded rod (16) passes through the bottom plate (7) and is connected to the knob (13). Two push blocks (14) that are threadedly engaged with the threaded rod (16) are fitted on each of the threaded rods (16). The two push blocks (14) are located in the two chambers respectively. The push blocks (14) are frustum-shaped. Several anchor plates (9) are slidably connected to the side wall of the push blocks (14) through rollers (18). Several through slots for the anchor plates (9) to extend are opened on the side wall of the ground anchor (8).
3. The fence for a desert photovoltaic field according to claim 1, characterized in that: The connecting assembly includes a mounting plate (6) fixed on a fixing rod (2). The mounting plate (6) has an "L" shaped structure. A limiting plate (4) is hinged on the mounting plate (6). A slot is provided at the bottom of the limiting plate (4). A locking block (5) is provided on the connecting plate to engage with the slot.
4. The fence for a desert photovoltaic field according to claim 2, characterized in that: The bottom of the side wall of the push block (14) is provided with several sliders (17), and the cavity is provided with several sliding grooves (15) that slide up and down with the sliders (17).
5. The fence for a desert photovoltaic field according to claim 2, characterized in that: The knob (13) has a fixing hole, and a screw (12) is inserted into the fixing hole. The top of the base plate (7) has several threaded holes that are threaded to it.
6. The fence for a desert photovoltaic field according to claim 1, characterized in that: The anchor plate (9) is located inside the ground anchor (8), and the outer wall of the anchor plate (9) and the outer wall of the ground anchor (8) are on the same horizontal plane.
7. The fence for a desert photovoltaic field according to claim 3, characterized in that: The fixing rod (2) is provided with a plug, and a slot (20) is provided on the side wall of the adjacent connecting plate to which the plug is inserted.