A prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants

Abstract

This invention relates to the technical field of spiral steel pile stacking equipment, specifically a prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants. The rack includes a fixed frame, a movable frame, a fixing buckle, a fixing component, a flange groove, a fastening ring, a fastening component, and an unlocking component. By setting a movable frame and fastening components within the fixed frame, the fastening ring action is temporarily paused when steel piles are placed, reserving space for placement. When a layer is stacked to the next layer, the fixed column and fixing buckle lock and trigger the fastening unit, bringing the fastening ring close to the tip of the steel pile, thus fixing both ends; the top layer is locked by the top cover fastening column. During retrieval, after one layer of steel piles is removed, the movable frame resets, driving the unlocking component to automatically unlock the current layer from the next. If a portion of the frame is removed from the middle, the crane simultaneously attaches to the rope fixing block and the active groove, automatically unlocking during lifting, balancing stability and flexibility.

Description

Technical Field

[0001] This invention relates to the field of spiral steel pile stacking equipment technology, specifically a spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants. Background Technology

[0002] In the construction of high-altitude photovoltaic power stations, large-blade helical steel piles are the core components of photovoltaic support foundations, and their transportation and on-site stacking management directly affect construction efficiency and project safety. Because helical steel piles are typically long, heavy, and have irregular shapes due to their helical blade structure, traditional stacking methods often involve flat laying or simple support, which suffers from problems such as large footprint, limited stacking layers, and susceptibility to rolling collisions between piles. To address these issues, some projects utilize prefabricated stacking racks, employing a layered structure to achieve three-dimensional storage of helical steel piles, thereby improving site utilization and ease of access.

[0003] However, existing prefabricated stacking racks still have significant technical shortcomings in practical applications. First, during stacking, the helical steel piles rely solely on self-weighting to anchor themselves to the rack, lacking effective fixation. High-altitude areas are often accompanied by harsh environmental factors such as strong winds and earthquakes; unsecured steel piles are prone to displacement, rolling, or even falling, potentially damaging the pile surface coating or helical blades, and posing serious safety hazards. Second, when multiple layers of the rack need to be stacked, the connection between the upper and lower layers is usually achieved through simple stacking, followed by temporary binding, which is time-consuming and prone to loose binding, leading to insufficient stability. Especially after multiple layers are stacked, the entire rack is bound together. If some layers need to be removed, the entire rack must be loosened, and then the remaining layers re-bound. This cumbersome operation results in poor stability and severely impacts construction efficiency.

[0004] Furthermore, existing stacking racks lack specific protection and positioning designs for the end flanges and tip structures of the steel piles. The flanges of the helical steel piles are critical connection points for subsequent drilling and installation, while the tip is the entry point into the soil. If either of these collide or deforms during stacking, it will directly affect the subsequent installation accuracy and construction quality. Traditional stacking racks cannot automatically limit and lock the ends after the piles are stacked, requiring manual binding and fixing one by one. This is not only time-consuming and labor-intensive, but also carries a high risk of operation in high-altitude and harsh weather conditions.

[0005] To address this, a spiral steel pile assembly stacking rack for high-altitude photovoltaic power plants is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants. This invention addresses the problems in existing technologies, such as the spiral steel piles being prone to displacement on the stacking rack, the lack of specific protection for the tips, flanges, and blades, and the inability to directly fix the stacked piles after stacking, requiring manual binding which is time-consuming and prone to loose binding. Furthermore, when disassembling some layers of the stacking rack, the entire rack must be loosened before the remaining layers are re-bound, resulting in cumbersome operations and reduced construction efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants includes a fixed frame, a movable frame, a fixing buckle, a fixing component, a flange groove, a fastening ring, a fastening component, and an unlocking component. Multiple sets of fixed frames are stacked layer by layer. A fixing column is located at the lower end of each fixed frame, and a slot is located at the upper end. The fixing column is slidably connected to the slot on the lower fixed frame. The movable frame is slidably connected to the fixed frame. The fixing buckle is connected to the fixed frame via the fixing component, which engages with the fixing buckle to lock the fixing column of the upper fixed frame. The fastening ring is connected to the fixed frame via the fastening component. The flange groove is located at the upper end of the movable frame. After the fixing buckle locks the upper fixing column, the fastening component, in conjunction with the fastening ring and the flange groove, locks the spiral steel piles on the movable frame at this layer. The unlocking component is located on the side of the fixing buckle. After all the spiral steel piles on the movable frame at this layer are removed, the unlocking component, in conjunction with the fixing buckle and the fastening component, unlocks the fixing column of this layer from the fixing component of the lower fixed frame.

[0008] Preferably, the fixing component includes a fixing groove, a fixing baffle, and a fixing spring. The fixing post has a fixing slot on its side. The fixing groove is located on the side of the slot. The fixing baffle is slidably connected in the fixing groove. The two ends of the fixing spring abut against the end of the fixing baffle away from the slot and the inner wall of the fixing frame, respectively. The end of the fixing baffle near the slot is connected to a fixing buckle. The upper end of the fixing buckle has a fixing chamfer. The fixing chamfer cooperates with the fixing slot of the upper fixing post.

[0009] Preferably, the fastening component includes a movable groove, a movable baffle, a movable spring, a downward pressure rack, a downward pressure gear, a fastening gear, a fastening rack, a fastening groove, and a fastening platform. The movable groove is formed within the fixed frame. The movable baffle is disposed on the side of the movable frame and is slidably connected to the movable frame. Both ends of the movable spring abut against the lower end of the movable baffle and the inner wall of the fixed frame, respectively. The downward pressure rack is connected to the side of the movable frame. The downward pressure gear is rotatably connected within the fixed frame and meshes with the downward pressure gear. The fastening gear is coaxially connected to the downward pressure gear. The fastening rack is slidably connected within the fixed frame and meshes with the fastening gear. The fastening groove is formed on the fixed frame. The fastening platform is slidably connected to the fastening groove, and the fastening ring is rotatably connected to the fastening platform.

[0010] Preferably, the movable frame has multiple sets of grooves.

[0011] Preferably, the casual clothing unit includes a casual clothing platform, a casual clothing slot, a casual clothing spring, and a casual clothing plate. The casual clothing platform is fixedly connected to the side of the movable frame. The casual clothing slot is opened inside the casual clothing platform. The two ends of the casual clothing spring abut against the upper end of the downward pressure rack and the inner wall of the casual clothing platform, respectively. The casual clothing plate is fixedly connected to the lower end of the fixed baffle near the slot. The casual clothing plate cooperates with the lower end of the downward pressure rack. The casual clothing plate also has a chamfer for easy removal on the side away from the fixed baffle. The chamfer for easy removal cooperates with the downward pressure rack.

[0012] Preferably, the diameter of the fastening gear is larger than the diameter of the pressing gear.

[0013] Preferably, the uppermost fixing frame is provided with a top cover, and the lower end of the top cover is provided with a fastening post, which cooperates with the fixing buckle.

[0014] Preferably, the unlocking component includes an upper hook groove, an unlocking groove, an unlocking rack, an unlocking gear, an ejector rack, an ejector groove, an ejector baffle, an ejector spring, and an ejector block. The upper hook groove is located on the side of the movable frame. The unlocking groove is located within the fixed baffle. The unlocking rack is slidably connected to the unlocking groove. The fixing buckle is connected to the side of the unlocking rack near the slot. The unlocking gear is rotatably connected to the unlocking groove. The side of the unlocking rack away from the slot meshes with the unlocking gear. The ejector rack is slidably connected to the unlocking groove. The ejector rack meshes with the side of the unlocking gear away from the slot. The ejector groove is located within the fixed frame. At the lower end of the fixed groove, the ejector baffle is slidably connected to the ejector groove. The ejector block is connected to the lower end of the ejector baffle. Both ends of the ejector spring abut against the lower end of the ejector baffle and the inner wall of the fixed frame, respectively. The upper hook groove cooperates with the fixing buckle. The lower end of the ejector rack abuts against the ejector baffle. The ejector block cooperates with the lower fixed chamfer.

[0015] Preferably, the side of the fixing frame is provided with an active groove, the side of the ejector block is provided with an active block, the active block extends to the outside of the fixing frame through the active groove, and the side of the fixing frame is slidably connected with a retaining block, the lower end of the retaining block cooperates with the upper end of the active block.

[0016] Preferably, a rope fixing block is provided on the side of the fixing frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By incorporating a movable frame, fastening components, and fastening rings within the fixed frame, the fastening rings prevent immediate contact during the placement of the spiral steel piles, leaving sufficient operational space. Once each layer is full, the entire stacking rack is placed on top of the layer below. The fixed column and the lower layer's fixing buckle are locked together by the fixing components. Simultaneously, the portable unit is triggered, causing the fastening rings to move towards the tip of the spiral steel pile, achieving end-to-end contact and fixation. The top layer has a top cover, which, triggered by the fastening column, secures the top layer of steel piles. After all the steel piles in a layer are removed, the movable frame moves upward and resets under the action of the movable spring, driving the unlocking component to push the fixing buckles out of the fixing slots, automatically unlocking the layer from the layer below, facilitating the removal of empty racks. To remove part of the stacking rack from multiple layers, simply press down on the active block to release the lock between the target rack and the lower layer. This design ensures stacking stability, eliminates the need for additional rope untying operations, and supports multi-layer one-time hoisting, improving safety and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention during use; Figure 3 This is a schematic cross-sectional view of the overall structure of the fixing component of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a partial cross-sectional view of the fastening gear of the present invention; Figure 7 This is a schematic diagram of the connection between the fixing buckle and the upper hook groove of the present invention; Figure 8 This is a cross-sectional structural diagram of the unlocking component of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C.

[0019] In the diagram: 1. Fixed frame; 2. Movable frame; 3. Fixed buckle; 4. Fixed component; 5. Flange groove; 6. Fastening ring; 7. Fastening component; 8. Unlocking component; 11. Fixed post; 12. Card slot; 41. Fixed groove; 42. Fixed baffle; 43. Fixed spring; 44. Fixed slot; 45. Fixed chamfer; 71. Movable groove; 72. Movable baffle; 73. Movable spring; 74. Downward rack; 75. Downward gear; 76. Fastening rack; 77. Fastening gear; 78. Fastening groove; 79. Fastening platform; 9. Clothing unit; 21. Groove; 91. Clothing platform; 92. Clothing slot; 93. Clothing spring; 94. Clothing plate; 95. Easy-to-remove chamfer; 10. Top cover; 101. Fastening post; 81. Upper hook slot; 82. Unlocking slot; 83. Unlocking rack; 84. Unlocking gear; 85. Ejection rack; 86. Ejection slot; 87. Ejection baffle; 88. Ejection spring; 89. Ejection block; 13. Active slot; 14. Active block; 15. Rope fixing block; 16. Holding block. Detailed Implementation

[0020] To ensure a clear and complete description of the technical solutions in the embodiments of the present invention, and to make the features and advantages more apparent and understandable, the specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example 1

[0022] Please see Figures 1 to 9 This invention provides a prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants, including a fixed frame 1, a movable frame 2, a fixing buckle 3, a fixing component 4, a flange groove 5, a fastening ring 6, a fastening component 7, and an unlocking component 8. Multiple sets of fixed frames 1 are arranged and stacked layer by layer. A fixing column 11 is provided at the lower end of each fixed frame 1, and a slot 12 is provided at the upper end. The fixing column 11 is slidably connected to the slot 12 on the lower fixed frame 1. The movable frame 2 is slidably connected to the fixed frame 1. The fixing buckle 3 is connected to the fixed frame 1 through the fixing component 4. Part 4 is used to lock the fixing post 11 of the upper fixed frame 1 in conjunction with the fixing buckle 3. The fastening ring 6 is connected to the fixed frame 1 through the fastening component 7. The flange groove 5 is opened at the upper end of the movable frame 2. After the fixing buckle 3 locks the upper fixed post 11, the fastening component 7 is used to lock the spiral steel pile on the movable frame 2 of this layer in conjunction with the fastening ring 6 and the flange groove 5. The unlocking component 8 is set on the side of the fixing buckle 3. The unlocking component 8 is used to unlock the fixing post 11 of this layer from the fixing component 4 of the lower fixed frame 1 in conjunction with the fixing buckle 3 and the fastening component 7 after all the spiral steel piles on the movable frame 2 of this layer have been removed.

[0023] Please see Figures 2 to 4 Specifically, the fixing component 4 includes a fixing groove 41, a fixing baffle 42, and a fixing spring 43. The fixing post 11 has a fixing slot 44 on its side. The fixing groove 41 is located on the side of the slot 12. The fixing baffle 42 is slidably connected in the fixing groove 41. The two ends of the fixing spring 43 abut against the end of the fixing baffle 42 away from the slot 12 and the inner wall of the fixing frame 1, respectively. The end of the fixing baffle 42 near the slot 12 is connected to the fixing buckle 3. The upper end of the fixing buckle 3 has a fixing chamfer 45, which cooperates with the fixing slot 44 of the upper fixing post 11. The cooperation here refers to the following: when the fixing post 11 of the upper fixing frame 1 is inserted into the slot 12 of the lower fixing frame 1, the lower edge of the fixing post 11 first contacts the fixing chamfer 45 on the fixing buckle 3. As the fixing post 11 continues to be inserted, the fixing post 11 pushes the fixing buckle 3 together with the fixing baffle 42 into the fixing groove 41 through the fixing chamfer 45 and compresses the fixing spring 43 until the fixing slot 44 is aligned with the fixing buckle 3. At this time, the fixing spring 43 resets and pushes the fixing buckle 3 into the fixing slot 44 to complete the locking.

[0024] Specifically, by setting the fixing component 4, the upper fixing frame 1 is automatically locked in place during the downward pressure of gravity, without the need for additional tools or manual operation. The reliability of the fixing frame 1 in stacking effectively prevents the frame from loosening due to strong winds or vibrations at high altitudes, significantly improving the stability and safety of multi-layer stacking.

[0025] Please see Figures 3 to 6 Specifically, the fastening component 7 includes a movable groove 71, a movable baffle 72, a movable spring 73, a downward pressing rack 74, a downward pressing gear 75, a fastening gear 77, a fastening rack 76, a fastening groove 78, a fastening platform 79, and a portable unit 9. The movable groove 71 is formed inside the fixed frame 1. The movable baffle 72 is located on the side of the movable frame 2 and is slidably connected to the movable frame 2. The two ends of the movable spring 73 abut against the lower end of the movable baffle 72 and the inner wall of the fixed frame 1, respectively. The downward pressing gear... A rack 74 is connected to the side of the movable frame 2. A downward pressing gear 75 is rotatably connected to the fixed frame 1. A downward pressing rack 74 meshes with a downward pressing gear 75. A fastening gear 77 is coaxially connected to a downward pressing gear 75. A fastening rack 76 is slidably connected to the fixed frame 1. A fastening rack 76 meshes with a fastening gear 77. A fastening groove 78 is opened on the fixed frame 1. A fastening platform 79 is slidably connected to a fastening groove 78. A fastening ring 6 is rotatably connected to a fastening platform 79. A temporary fastening unit 9 is used to temporarily fix the fastening ring 6.

[0026] Specifically, when the pressing rack 74 moves downward, it drives the pressing gear 75 to rotate. The pressing gear 75 drives the coaxial clamping gear 77 to rotate. The clamping gear 77 then drives the clamping rack 76 to slide horizontally within the fixed frame 1. When the pressing rack 74 moves downward, the clamping rack 76 can drive the clamping platform 79 to move closer to the tip of the spiral steel pile. This drives the clamping ring 6 to move closer to the tip of the spiral steel pile, so that the flange at the other end of the spiral steel pile moves within the flange groove 5 of the movable frame 2, and finally makes the flange fit against the inner wall of the movable frame 2, thus fixing both ends of the spiral steel pile.

[0027] The movable frame 2 has multiple sets of grooves 21, each of which can be equipped with ball bearings or coated with lubricant. The ball bearings are not shown in the diagram. Taking the presence of ball bearings as an example, specifically, by setting the grooves 21 with ball bearings, the frictional force when the fastening ring 6 pushes the spiral steel pile and the flange of the spiral steel pile fits against the inner wall of the movable frame 2 is effectively reduced, thus avoiding scratches on the coating of the steel pile surface due to excessive friction.

[0028] Please see Figures 3 to 5 Specifically, the casual clothing unit 9 includes a casual clothing platform 91, a casual clothing slot 92, a casual clothing spring 93, and a casual clothing plate 94. The casual clothing platform 91 is fixedly connected to the side of the movable frame 2. The casual clothing slot 92 is opened inside the casual clothing platform 91. The two ends of the casual clothing spring 93 abut against the upper end of the downward pressure rack 74 and the inner wall of the casual clothing platform 91, respectively. The casual clothing plate 94 is fixedly connected to the lower end of the fixed baffle 42 near the slot 12. The casual clothing plate 94 cooperates with the lower end of the downward pressure rack 74. The cooperation here means that when the upper fixed frame 1 is not stacked, the fixed baffle 42 is in the extended state, and the casual clothing plate 94 is located directly below the lower end of the downward pressure rack 74. When the movable frame 2 moves down due to the placement of the spiral steel pile, the downward pressure rack 74 moves down accordingly, and its lower end abuts against the casual clothing plate 94, thereby preventing the downward pressure rack 74 from moving further down, so that the downward pressure gear 75 and the locking gear 77 cannot rotate, and the locking ring 6 remains in the retracted state.

[0029] Specifically, by setting up the portable unit 9, the fastening ring 6 will not move immediately when the worker places multiple spiral steel piles one by one on the movable frame 2, leaving sufficient operating space for the placement of steel piles, avoiding the interference problem caused by locking while placing, and improving the filling efficiency.

[0030] The portable plate 94 is also provided with a removable chamfer 95 on the side away from the fixed baffle 42, which cooperates with the downward pressing rack 74. The cooperation here means that when the upper fixed frame 1 is lifted and the fixed column 11 is pulled out from the slot 12, the fixed baffle 42 moves and resets towards the side closer to the slot 12 under the action of the fixed spring 43. The portable plate 94 moves synchronously with the fixed baffle 42, and the removable chamfer 95 contacts the lower edge of the downward pressing rack 74. The downward pressing rack 74 is pushed upward along the inclined surface of the removable chamfer 95, so that the portable plate 94 can pass smoothly under the downward pressing rack 74. At the same time, the upward movement of the downward pressing rack 74 drives the fastening ring 6 to move and reset away from the tip of the spiral steel pile, releasing the locking of the spiral steel pile and facilitating the removal of the spiral steel pile of this layer.

[0031] The diameter of the clamping gear 77 is larger than that of the pressing gear 75. Specifically, the design of the clamping gear 77 having a larger diameter than the pressing gear 75 allows the movable frame 2 to drive the clamping rack 76 to produce a larger horizontal displacement with a smaller pressing stroke. This ensures that the clamping ring 6 has sufficient distance to facilitate the installation of the spiral steel pile when it does not need to be close to the tip of the spiral steel pile, and that when it needs to be close to the spiral steel pile, the pressing rack 74 only needs to move downward with a small stroke. In other words, the movable frame 2 only needs to move downward with a small distance to pre-compress the pressing rack 74, which ensures that the clamping ring 6 has sufficient displacement stroke to fit the tip of the spiral steel pile.

[0032] Please see Figure 3 Specifically, the uppermost fixing frame 1 is provided with a top cover 10, and the lower end of the top cover 10 is provided with a fastening post 101, which cooperates with the fixing buckle 3. The cooperation here means that when the top cover 10 is placed on the uppermost fixing frame 1, the fastening post 101 is inserted into the slot 12 of the uppermost fixing frame 1 and pushes the fixing buckle 3, so that the fixing buckle 3 triggers the portable unit 9 on the same layer, thereby activating the uppermost fastening component 7 to lock the uppermost spiral steel pile.

[0033] Specifically, the design of the top cover 10 and the fastening column 101, by simulating the insertion action of the upper fixing frame 1, allows the top cover 10 to independently lock the top steel pile, preventing the risk of the top steel pile falling due to not being locked.

[0034] In actual use, the operator first places the spiral steel piles onto the movable frame 2 of the stacking rack on this level, ensuring that the flange end of the steel pile is placed in the flange groove 5. When placing the first steel pile, the movable frame 2 moves downward due to gravity, causing the downward pressing rack 74 to move downward simultaneously. However, since no new racks have been stacked on the lower level at this time, the fixed baffle 42 is in the extended state, and the temporary plate 94 on it abuts against the lower end of the downward pressing rack 74, preventing the downward pressing rack 74 from moving further. Therefore, the fastening ring 6 remains in the retracted state, leaving sufficient operating space for the subsequent placement of steel piles. After all the spiral steel piles on the movable frame 2 of this level have been placed, the operator lifts the entire stacking rack on this level, aligning the fixed column 11 at its lower end with the slot 12 at the upper end of the lower stacking rack and slowly placing it in.

[0035] When the fixing post 11 is inserted into the lower slot 12, the lower edge of the fixing post 11 first contacts the fixing chamfer 45 on the lower fixing buckle 3. As the fixing post 11 continues to be inserted, the fixing post 11 pushes the fixing buckle 3 along with the fixing baffle 42 into the fixing groove 41 through the fixing chamfer 45 and compresses the fixing spring 43 until the fixing slot 44 is aligned with the fixing buckle 3. At this time, the fixing spring 43 resets and pushes the fixing buckle 3 into the fixing slot 44, realizing the automatic locking of the upper and lower stacking racks. At the same time, the movement of the fixing baffle 42 causes the hand-held plate 94 to move away from the lower end of the pressure rack 74, releasing the restriction on the pressure rack 74. At this point, under the continuous action of the gravity of the spiral steel pile, the movable frame 2 continues to move downward. The downward pressure rack 74 drives the downward pressure gear 75 to rotate, and the downward pressure gear 75 drives the coaxial clamping gear 77 to rotate. The clamping gear 77 then drives the clamping rack 76 to slide horizontally within the fixed frame 1, causing the clamping platform 79 to move the clamping ring 6 quickly towards the tip of the spiral steel pile and finally to fit tightly. During the process of the clamping ring 6 pushing the tip of the steel pile, the steel pile flange moves within the flange groove 5 of the movable frame 2. The ball bearings in the groove 21 on the movable frame 2 effectively reduce sliding friction, ultimately causing the flange to fit against the inner wall of the movable frame 2, achieving complete fixation of both ends of the spiral steel pile.

[0036] When the piles are stacked to the top layer, the operator places the top cover 10 on the top layer fixing frame 1. The fastening post 101 at the lower end of the top cover 10 is inserted into the slot 12 of the top layer fixing frame 1, pushing the fixing buckle 3 to trigger the fastening component 7 of the same layer, thereby completing the locking of the top layer of spiral steel piles. At this point, all layers of spiral steel piles are reliably fixed, effectively solving the safety hazard of steel piles easily rolling and falling in high-altitude and strong wind environments.

[0037] Example 2

[0038] Please see Figures 6 to 9This invention provides a prefabricated stacking rack for spiral steel piles used in high-altitude photovoltaic power plants, including an unlocking component 8. The unlocking component 8 includes an upper hook groove 81, an unlocking groove 82, an unlocking rack 83, an unlocking gear 84, an ejector rack 85, an ejector groove 86, an ejector baffle 87, an ejector spring 88, and an ejector block 89. The upper hook groove 81 is located on the side of the movable frame 2, the unlocking groove 82 is located within the fixed baffle 42, the unlocking rack 83 is slidably connected within the unlocking groove 82, and the fixing buckle 3 is close to the unlocking rack 83. One side of the slot 12 is connected, and the unlocking gear 84 is rotatably connected in the unlocking slot 82. The side of the unlocking rack 83 away from the slot 12 meshes with the unlocking gear 84. The ejector rack 85 is slidably connected in the unlocking slot 82 and meshes with the side of the unlocking gear 84 away from the slot 12. The ejector slot 86 is opened in the fixing frame 1. At the lower end of the fixing slot 41, the ejector baffle 87 is slidably connected in the ejector slot 86. The ejector block 89 is connected to the lower end of the ejector baffle 87. The two ends of the ejector spring 88 are respectively connected to the ejector baffle. The lower end of 87 abuts against the inner wall of the fixing frame 1, and the upper hook groove 81 cooperates with the fixing buckle 3. This cooperation means that when there is no fixing post 11 or fastening post 101 in the slot 12, the fixing buckle 3 will insert into the upper hook groove 81 under the action of the fixing spring 43. When the movable frame 2 returns to its original position under the action of the movable spring 73, the upper hook groove 81 on the movable frame 2 will drive the fixing buckle 3 to move upward. The lower end of the ejector rack 85 abuts against the ejector baffle 87, and the ejector block 89 cooperates with the lower fixing chamfer 45. The coordination means that when the fixed buckle 3 moves upward, it drives the unlocking rack 83 to move upward. When the unlocking rack 83 moves, it drives the ejector rack 85 to move downward through the unlocking gear 84. The ejector rack 85 pushes the ejector baffle 87 and the ejector block 89 to overcome the elastic force of the ejector spring 88 and move downward. The ejector block 89 inserts into the fixed slot 44 of the lower fixed frame 1 and pushes the fixed chamfer 45 on the fixed buckle 3 in the lower fixed frame 1, so that the lower fixed buckle 3 disengages from the fixed slot 44 of the lower fixed post 11.

[0039] Please see Figure 6 Specifically, the fixed frame 1 has an active groove 13 on its side, and the ejector block 89 has an active block 14 on its side. The active block 14 extends to the outside of the fixed frame 1 through the active groove 13. A retaining block 16 is slidably connected to the side of the fixed frame 1, and the lower end of the retaining block 16 cooperates with the upper end of the active block 14. By setting the active block 14, when it is necessary to lift the stacking rack from the middle layer of the stack, the active block 14 can be pressed to drive the ejector block 89 to move downward and insert into the fixed slot 44 of the lower fixed frame 1. The active block 14 also pushes the fixed chamfer 45 on the fixed buckle 3 in the lower fixed frame 1, so that the lower fixed buckle 3 disengages from the fixed slot 44 of the lower fixed column 11, thus achieving active separation from the lower frame. After active separation, the retaining block 16 is pushed to make the lower end of the retaining block 16 abut against the upper end of the active block 14, preventing the active block 14 from resetting upward under the action of the ejector spring 88.

[0040] A rope fixing block 15 is provided on the side of the fixing frame 1. Specifically, the rope fixing block 15 works in conjunction with the active groove 13 to provide a clear suspension point for the hook of the lifting equipment.

[0041] The rest of the structure is the same as in Example 1.

[0042] In practical use, when spiral steel piles are needed for construction, the operator removes the piles layer by layer from top to bottom. As the last spiral steel pile on the movable frame 2 is removed, the movable frame 2 returns to its original position under the elastic force of the movable spring 73. At this time, since there are no fixed posts 11 or fastening posts 101 in the slot 12 of this layer, the fixing buckle 3 is inserted into the upper hook groove 81 on the side of the movable frame 2 under the reset action of the fixing spring 43. As the movable frame 2 continues to move slightly upward under the action of the movable spring 73, the edge of the upper hook groove 81 drives the fixing buckle 3 to move upward.

[0043] When the fixing buckle 3 moves upward, it drives the unlocking rack 83 to move upward simultaneously. The unlocking rack 83 drives the ejector rack 85 to move downward through the unlocking gear 84. The ejector rack 85 pushes the ejector baffle 87 and the ejector block 89 downward against the elastic force of the ejector spring 88. The ejector block 89 inserts into the fixing slot 44 of the lower fixing frame 1 and pushes the fixing chamfer 45 on the fixing buckle 3 in the lower fixing frame 1, causing the lower fixing buckle 3 to disengage from the fixing slot 44 of the lower fixing post 11. At this point, the locking relationship between the current fixing frame 1 and the lower fixing frame 1 is automatically released, and the operator can easily remove the empty stacking rack as a whole without affecting the stability of the locked steel piles in the lower layer.

[0044] When it is necessary to remove the stacking rack with steel piles from the middle of the multi-layer stacking rack at once, for example, when it is necessary to use a certain batch of steel piles in advance, the operator presses the active block 14, causing the active block 14 to drive the ejector block 89 to move downward and insert into the fixing slot 44 of the lower fixing frame 1, and pushes the fixing chamfer 45 on the fixing buckle 3 in the lower fixing frame 1, so that the lower fixing buckle 3 disengages from the fixing slot 44 of the lower fixing column 11, realizing active separation from the lower frame. After active separation, by pushing the holding block 16, the lower end of the holding block 16 abuts against the upper end of the active block 14, preventing the active block 14 from resetting upward under the action of the ejector spring 88. Then, the hook of the lifting equipment simultaneously hooks the rope fixing block 15 and the active groove 13 on the side of the target stacking rack. The entire target stacking rack, along with its steel piles, is lifted up, enabling flexible and non-sequential retrieval. This greatly optimizes the retrieval process for multi-layer stacking racks, ensuring safety and convenience during retrieval, and also keeping the remaining stacking racks fixed and stable after retrieval.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants, characterized in that: The device includes a fixed frame (1), a movable frame (2), a fixing buckle (3), a fixing component (4), a flange groove (5), a fastening ring (6), a fastening component (7), and an unlocking component (8). Multiple sets of the fixed frame (1) are stacked on top of each other. A fixing post (11) is located at the lower end of each fixed frame (1), and a slot (12) is located at the upper end of each fixed frame (1). The fixing post (11) is slidably connected to the slot (12) on the lower fixed frame (1). The movable frame (2) is slidably connected to the fixed frame (1). The fixing buckle (3) is connected to the fixed frame (1) via the fixing component (4), which is used to cooperate with the fixing buckle (3). The upper fixed frame (1) is locked with the fixed column (11). The fastening ring (6) is connected to the fixed frame (1) through the fastening component (7). The flange groove (5) is opened at the upper end of the movable frame (2). The fastening component (7) is used to lock the spiral steel pile on the movable frame (2) in this layer in cooperation with the fastening ring (6) and the flange groove (5) after the fixed buckle (3) locks the upper fixed column (11). The unlocking component (8) is set on the side of the fixed buckle (3). The unlocking component (8) is used to unlock the fixed column (11) of this layer and the fixed component (4) of the lower fixed frame (1) in cooperation with the fixed buckle (3) and the fastening component (7) after all the spiral steel piles on the movable frame (2) are removed.

2. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 1, characterized in that: The fixing component (4) includes a fixing groove (41), a fixing baffle (42), and a fixing spring (43). The fixing column (11) has a fixing slot (44) on its side. The fixing groove (41) is located on the side of the slot (12). The fixing baffle (42) is slidably connected in the fixing groove (41). The two ends of the fixing spring (43) abut against the end of the fixing baffle (42) away from the slot (12) and the inner wall of the fixing frame (1), respectively. The end of the fixing baffle (42) near the slot (12) is connected to the fixing buckle (3). The upper end of the fixing buckle (3) has a fixing chamfer (45). The fixing chamfer (45) cooperates with the fixing slot (44) of the upper fixing column (11).

3. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 2, characterized in that: The fastening component (7) includes a movable groove (71), a movable baffle (72), a movable spring (73), a downward pressure rack (74), a downward pressure gear (75), a fastening gear (77), a fastening rack (76), a fastening groove (78), a fastening platform (79), and a portable unit (9). The movable groove (71) is opened in the fixed frame (1). The movable baffle (72) is set on the side of the movable frame (2). The movable baffle (72) is slidably connected to the movable frame (2). The two ends of the movable spring (73) abut against the lower end of the movable baffle (72) and the inner wall of the fixed frame (1), respectively. The downward pressure rack (74) is connected to the movable frame. (2) On the side, the pressing gear (75) is rotatably connected in the fixed frame (1), the pressing rack (74) meshes with the pressing gear (75), the fastening gear (77) is coaxially connected with the pressing gear (75), the fastening rack (76) is slidably connected in the fixed frame (1), the fastening rack (76) meshes with the fastening gear (77), the fastening groove (78) is opened on the fixed frame (1), the fastening platform (79) is slidably connected with the fastening groove (78), the fastening ring (6) is rotatably connected on the fastening platform (79), and the portable unit (9) is set in the fixed frame (1) for temporarily fixing the fastening ring (6).

4. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 3, characterized in that: The movable frame (2) has multiple sets of grooves (21).

5. The spiral steel pile assembly stacking rack for high-altitude photovoltaic power plants according to claim 3, characterized in that: The portable unit (9) includes a portable table (91), a portable slot (92), a portable spring (93), and a portable plate (94). The portable table (91) is fixedly connected to the side of the movable frame (2). The portable slot (92) is opened in the portable table (91). The two ends of the portable spring (93) abut against the upper end of the lower pressure rack (74) and the inner wall of the portable table (91), respectively. The portable plate (94) is fixedly connected to the lower end of the fixed baffle (42) near the slot (12). The portable plate (94) cooperates with the lower end of the lower pressure rack (74). The portable plate (94) is also provided with a disassembly chamfer (95) on the side away from the fixed baffle (42). The disassembly chamfer (95) cooperates with the lower pressure rack (74).

6. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 3, characterized in that: The diameter of the fastening gear (77) is larger than the diameter of the pressing gear (75).

7. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 3, characterized in that: The uppermost fixing frame (1) is provided with a top cover (10), and the lower end of the top cover (10) is provided with a fastening post (101), which cooperates with the fixing buckle (3).

8. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 5, characterized in that: The unlocking component (8) includes an upper hook groove (81), an unlocking groove (82), an unlocking rack (83), an unlocking gear (84), an ejector rack (85), an ejector groove (86), an ejector baffle (87), an ejector spring (88), and an ejector block (89). The upper hook groove (81) is located on the side of the movable frame (2). The unlocking groove (82) is located inside the fixed baffle (42). The unlocking rack (83) is slidably connected to the unlocking groove (82). The fixing buckle (3) is connected to the side of the unlocking rack (83) near the slot (12). The unlocking gear (84) is rotatably connected to the unlocking groove (82). The side of the unlocking rack (83) away from the slot (12) meshes with the unlocking gear (84). The ejector rack (85) is slidably connected in the unlocking groove (82), the ejector rack (85) meshes with the unlocking gear (84) on the side away from the slot (12), the ejector groove (86) is opened at the lower end of the fixing groove (41) in the fixing frame (1), the ejector baffle (87) is slidably connected in the ejector groove (86), the ejector block (89) is connected to the lower end of the ejector baffle (87), the two ends of the ejector spring (88) abut against the lower end of the ejector baffle (87) and the inner wall of the fixing frame (1) respectively, the upper hook groove (81) cooperates with the fixing buckle (3), the lower end of the ejector rack (85) abuts against the ejector baffle (87), and the ejector block (89) cooperates with the lower fixing chamfer (45).

9. The spiral steel pile prefabricated stacking rack for high-altitude photovoltaic power plants according to claim 8, characterized in that: The fixed frame (1) has an active groove (13) on its side, and the ejector block (89) has an active block (14) on its side. The active block (14) extends to the outside of the fixed frame (1) through the active groove (13). The fixed frame (1) has a retaining block (16) slidably connected to its side. The lower end of the retaining block (16) cooperates with the upper end of the active block (14).

10. The spiral steel pile assembly stacking rack for high-altitude photovoltaic power plants according to claim 9, characterized in that: The fixing frame (1) is provided with a rope fixing block (15) on the side.

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