A power collection line foundation mountain section hoisting device and method

Abstract

The present application relates to hoisting equipment technical field, specifically said is a kind of power collection line foundation mountain section hoisting device and method, including the first portal frame, second portal frame being set at different heights of mountain section;Two portal frames are slidably arranged electric sliding seat, electric sliding seat is equipped with electric hoist, the electric hoist of first portal frame is connected with automatic clamp jaw structure by steel cable, the electric hoist of second portal frame is connected with clamping structure by steel cable;Through first portal frame and second portal frame, the alternate receiving and conveying of first transport plate and second transport plate are driven by air pressure, the whole process of hoisting, buffering, transloading and lifting of material from low to high can be seamlessly connected, the intermittent time of material waiting for transloading when a group of lifting devices is operated is eliminated, the material transloading efficiency of mountain narrow site is greatly improved, and there is no need to lay track along the full length of slope or carry out large-scale earthwork, which greatly reduces the site reconstruction engineering quantity and the damage to terrain.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, specifically to a hoisting device and method for the foundation of a power line in mountainous terrain. Background Technology

[0002] During the construction of the collection line foundation for mountain wind farms and photovoltaic power stations, the steep terrain, narrow site, and limited transportation conditions make the sloping and vertical transportation of materials such as steel cages and prefabricated foundation components a major challenge. Currently, material transportation in mountainous areas mostly employs methods such as track-mounted lifting devices, simple winch hoisting, manual handling, or the erection of temporary single-unit supports. These methods generally have significant drawbacks. Track-mounted transportation requires laying dedicated tracks along the entire mountain slope, resulting in a large on-site laying workload, long construction period, and high investment costs. Furthermore, the tracks have poor adaptability to terrain slopes. A single lifting device can only achieve single loading and unloading, with significant waiting intervals during material transfer, making continuous transportation impossible and resulting in low overall handling efficiency, which is insufficient to meet the needs of large-scale foundation construction. Relying heavily on manual handling and transfer not only involves high labor intensity but also poses problems such as insufficient construction safety and limited capacity for large-scale construction operations. Therefore, a hoisting device and method for power line foundations in mountainous areas is needed to achieve uninterrupted continuous material transportation, effectively improving material transfer and handling efficiency. Summary of the Invention

[0003] To address the problems in the existing technology, the present invention provides a hoisting device for the mountainous section of power line foundation, which can realize uninterrupted and continuous material transportation, effectively improving material transfer efficiency and handling efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is a hoisting device for the mountain section of a power line foundation, including a first gantry frame and a second gantry frame set at different heights in the mountain section; electric slides are slidably installed on both gantry frames, and electric hoists are equipped on the electric slides. The electric hoist of the first gantry frame is connected to an automatic gripper structure through a steel cable, and the electric hoist of the second gantry frame is connected to a clamping structure through a steel cable. A first transport plate is clamped below the clamping structure. Two sets of first mounting plates and two sets of second mounting plates are provided between the two gantry frames. A supporting structure is provided between the two sets of first mounting plates, and a pneumatic lifting structure is provided between the two sets of second mounting plates. A second transport plate is provided above the pneumatic lifting structure. T-shaped blocks are connected to the side of the first transport plate and the second transport plate closest to the first gantry frame. A first pneumatic drive structure is connected between the two sets of first mounting plates. The first pneumatic drive structure is used to pull the corresponding transport plate toward the pneumatic lifting structure through the T-shaped blocks. A second pneumatic drive structure connected to the first pneumatic drive structure is connected between the two sets of second mounting plates. The second pneumatic drive structure is used to drive the corresponding transport plate to move directly below the supporting structure. An air supply structure is provided on the second mounting plate to press against the locking structure. The air supply structure is connected to the second pneumatic drive structure.

[0005] Specifically, the support structure includes two sets of support plates disposed between two sets of first mounting plates. A rotating shaft is fixedly connected to the side of the two sets of support plates at opposite ends. The rotating shaft is rotatably connected to the first mounting plate. The two sets of support plates are located below the end of the second gantry frame that is closer to the first gantry frame.

[0006] Specifically, the first pneumatic drive structure includes a first pneumatic telescopic rod disposed on one side of the two sets of first mounting plates that are close to each other. The first pneumatic telescopic rod is a spring reset cylinder that extends when air is cut off and retracts when air is supplied. The output ends of the two sets of first pneumatic telescopic rods are fixedly connected to a fixed seat. The upper surface of the fixed seat is provided with a vertically penetrating T-shaped slot, which corresponds to a T-shaped block. The second pneumatic drive structure is connected to the first pneumatic telescopic rod through a pipeline.

[0007] Specifically, the pneumatic lifting structure includes a support plate that is horizontally fixed between two sets of second mounting plates. A vertically arranged pneumatic cylinder is fixedly connected to the lower surface of the support plate. The output end of the pneumatic cylinder passes through the support plate and is fixedly connected to a horizontal plate. The second transport plate is located above the horizontal plate. The horizontal plate is located directly below the end of the first gantry frame that is close to the second gantry frame. The upper surface of the support plate is provided with a limiting groove corresponding to the horizontal plate.

[0008] Specifically, the second pneumatic drive structure includes a second pneumatic telescopic rod disposed on one side of the two sets of second mounting plates that are close to each other. The second pneumatic telescopic rod is a spring-reset cylinder that retracts when the air is cut off and extends when the air is allowed to pass through. A push block is fixedly connected to the output end of the second pneumatic telescopic rod. A slide rod is fixedly connected to the upper surface of the support plate on one side of the two sets of push blocks that are close to each other. After the output end of the pneumatic cylinder moves down, the lower surface of the second transport plate is pressed into contact with the upper surface of the slide rod.

[0009] Specifically, the snap-fit ​​structure includes a horizontally arranged lifting plate, and several sets of vertically arranged lifting rods are fixedly connected to the lower surface of the lifting plate. Each lifting rod has a pin hole at its lower end. The edges of both the first and second transport plates are provided with several sets of slots. Horizontally arranged pins are slidably connected in the slots. A return spring is fixedly connected between one end of the pin and the inner wall of the slot. The upper edge of the end of the pin away from the return spring is provided with a wedge-shaped surface. The lower surface of the pin is provided with a snap-fit ​​groove.

[0010] Specifically, each shaft is fixedly connected to a drive gear, one side of which meshes with a horizontally arranged drive rack. One end of the drive rack is fixedly connected to the output end of a horizontally arranged third pneumatic telescopic rod, which is fixedly connected to the first mounting plate. A one-way air intake valve and an adjustable exhaust valve are connected to the third pneumatic telescopic rod, and the pneumatic cylinder is connected to the one-way air intake valve through a pipeline.

[0011] Specifically, the air supply structure includes several sets of air supply cylinders vertically arranged on the side of the second mounting plate. The lower surface of the lifting plate is provided with several sets of positioning holes. After the lifting plate moves down, the output end of the air supply cylinder is pressed into contact with the positioning hole. The air supply cylinder is connected to the second pneumatic telescopic rod through a pipeline. Several sets of support rods are fixedly connected between the second mounting plate and the first mounting plate. A support frame is fixedly connected to the lower surface of the second mounting plate, and the lower end of the support frame is fixedly connected to the upper end of the concrete column poured on the mountain slope.

[0012] Specifically, the automatic gripper structure includes a gripper fixedly connected to the steel cable on the first gantry. The gripper has two sets of symmetrically inclined sliding grooves. Inclined clamping plates are slidably connected in the sliding grooves. Each set of clamping plates has a clamping groove at one end that is close to the other. One side of the gripper has a waist hole that communicates with the sliding groove. The waist hole is inclined. Both sides of the clamping plates have adjusting rods. One end of the adjusting rod passes through the waist hole and is fixedly connected to an adjusting seat.

[0013] A method for hoisting a power line foundation in a mountainous area, using the aforementioned hoisting device, includes the following steps: S1: The first gantry and the second gantry are set up at different heights in the mountainous area and leveled. The electric slides and electric hoists of the two gantry are started. The electric hoist of the first gantry uses a steel cable to drive the automatic gripper structure to grab the material and transport it to the second gantry.

[0014] S2: The electric hoist of the first gantry lowers the material and piles it on the second transport plate above the pneumatic lifting structure. The material is continuously piled up until the second transport plate moves down to the designated position. S3: The electric hoist of the second gantry frame drives the clamping structure and the clamping first transport plate to complete the remote transfer of the material on the plate, and then drives the clamping structure and the first transport plate to reset and move back to the first gantry frame. S4: The electric hoist of the second gantry moves the snap-fit ​​structure downward, so that the first transport plate corresponds with the support structure and disengages from the snap-fit. The snap-fit ​​structure continues to move downward to squeeze the air supply structure. The air supply structure drives the second pneumatic drive structure to work, pushing the second transport plate to move directly below the support structure. S5: The second pneumatic drive structure works in conjunction with the first pneumatic drive structure. The first pneumatic drive structure pulls the first transport plate to the top of the pneumatic lifting structure via a T-shaped clamp to receive subsequent materials. S6: The snap-fit ​​structure snaps into the second transport plate directly below the supporting structure. The electric hoist of the second gantry lifts the snap-fit ​​structure, driving the second transport plate and the materials on it to complete the high-altitude transfer in the mountain section. At the same time, the first gantry continues to pile materials onto the first transport plate, realizing the alternating operation of the two transport plates.

[0015] The beneficial effects of this invention are: (1) The hoisting device and method for the mountain section of the power line foundation described in this invention, through the first gantry and the second gantry, and with the alternating receiving and conveying of the first and second transport plates under pneumatic drive, the hoisting, buffering, transfer and lifting of materials from low to high can be seamlessly connected, eliminating the intermittent time of material waiting for transfer when a single set of lifting devices is operating, greatly improving the material transfer efficiency in narrow mountain areas, and eliminating the need to lay tracks along the entire length of the mountain slope or carry out large-scale earthwork operations, greatly reducing the amount of site modification engineering and damage to the terrain.

[0016] (2) The hoisting device and method for the foundation of a power line in mountainous areas described in this invention uses the air supply structure compression contact as an automatic control signal to realize the fully automated operation from material grabbing, automatic switching of buffer platform, exchange of transport plate position, snapping and unhooking to automatic avoidance of the supporting structure. This greatly reduces the manual intervention links, not only reducing labor intensity, but also avoiding the safety hazards of frequent operation by personnel in dangerous areas on the mountainside. It is particularly suitable for mountain construction sites where power supply is inconvenient or there is no stable gas source, and improves the scene adaptability and automation of the equipment.

[0017] (3) The hoisting device and method for the mountain section of the power line foundation described in this invention adopts a self-trigger mechanical cooperation design for both the snap-fit ​​structure and the automatic gripper structure. The pin block wedge surface cooperates with the reset spring to realize the autonomous switching of snap-fit ​​and disengagement. The automatic gripper relies on the weight of the material to realize the adaptive enhancement of the clamping force, and the automatic unloading can be completed by squeezing. No manual assistance is required for the entire process of switching and loosening the clamp, which reduces the labor intensity of mountain construction and improves the stability and safety of material hoisting and transportation. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is an isometric view of the present invention; Figure 2 This is an isometric view of the first gantry frame of the present invention; Figure 3 for Figure 2 Enlarged view of region A; Figure 4 This is an isometric view of the overall support frame of the present invention; Figure 5 for Figure 4 Enlarged view of region B; Figure 6 This is a schematic diagram of the connection structure between the first mounting plate and the second mounting plate of the present invention; Figure 7 This is a schematic diagram of the lifting plate connection structure of the present invention; Figure 8 for Figure 7 Enlarged view of region C; Figure 9 This is a bottom view of the lifting plate of the present invention; Figure 10 This is a cross-sectional view of the support plate portion of the present invention; Figure 11 for Figure 10 Enlarged view of region D; Figure 12 This is a side view of the first mounting plate and the second mounting plate of the present invention. In the diagram: 1. First gantry frame; 2. Second gantry frame; 3. Electric hoist; 4. First transport plate; 5. First mounting plate; 6. Second mounting plate; 7. Second transport plate; 8. T-shaped clamp; 9. Support plate; 10. Rotary shaft; 11. First pneumatic telescopic rod; 12. Fixed base; 13. T-shaped slot; 14. Support plate; 15. Pneumatic cylinder; 16. Horizontal plate; 17. Limiting groove; 18. Second pneumatic telescopic rod; 19. Push block; 20. Sliding rod; 21. Lifting plate; 22. Lifting rod; 23. Pin hole; 24. Slot; 25. Pin block; 26. Return spring; 27. Wedge surface; 28. Snap-fit ​​groove; 29. ​​Drive gear; 30. Drive rack; 31. Third pneumatic telescopic rod; 32. Air supply cylinder; 33. Positioning hole; 34. Support rod; 35. Support frame; 36. Clamping seat; 37. Slide groove; 38. Clamping plate; 39. Clamping groove; 40. Waist hole; 41. Adjusting rod; 42. Adjusting seat. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] In order to achieve uninterrupted and continuous material conveying and effectively improve material transfer and handling efficiency, as one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 4 , Figure 6 As shown, the present invention provides a hoisting device for a power line foundation in a mountainous area, comprising a first gantry 1 and a second gantry 2 set at different heights in the mountainous area; both gantry frames are slidably mounted with electric slides, each equipped with an electric hoist 3; the electric hoist 3 of the first gantry 1 is connected to an automatic gripper structure via a steel cable, and the electric hoist 3 of the second gantry 2 is connected to a clamping structure via a steel cable, with a first transport plate 4 clamped below the clamping structure; Two sets of first mounting plates 5 and two sets of second mounting plates 6 are provided between the two gantry frames. A supporting structure is provided between the two sets of first mounting plates 5. A pneumatic lifting structure is provided between the two sets of second mounting plates 6. A second transport plate 7 is provided above the pneumatic lifting structure. T-shaped blocks 8 are connected to the side of the first transport plate 4 and the second transport plate 7 closest to the first gantry frame 1. A first pneumatic drive structure is connected between the two sets of first mounting plates 5. The first pneumatic drive structure is used to pull the corresponding transport plate toward the pneumatic lifting structure through the T-shaped blocks 8. A second pneumatic drive structure connected to the first pneumatic drive structure is connected between the two sets of second mounting plates 6. The second pneumatic drive structure is used to drive the corresponding transport plate toward the underside of the supporting structure. An air supply structure is provided on the second mounting plate 6 to press against the locking structure. The air supply structure is connected to the second pneumatic drive structure.

[0022] When in use, the electric hoist 3 of the first gantry frame 1 is started, and the automatic gripper structure is driven by the steel cable to grab the material, lift it and move it to the second gantry frame 2 and put it on the second transport plate 7 for stacking. The automatic gripper structure automatically releases the material. The high and low layout of the double gantry frames is adapted to the mountain slope, realizing the directional transfer of materials from the low section to the high section of the mountain. There is no need to lay tracks, which is suitable for narrow construction sites in mountainous areas and reduces construction deployment costs. The electric hoist 3 and automatic gripper structure of the first gantry frame 1 continuously stack several groups of materials onto the second transport plate 7. As the materials are continuously stacked, the air pressure lifting structure moves down autonomously by the weight of the materials themselves, without the need for additional power control. This is suitable for construction environments in mountainous areas without external power. At the same time, the second transport plate 7 centrally supports the materials, enabling batch stacking of materials and avoiding waiting between transfers. Start the electric hoist 3 of the second gantry 2, and drive the clamping structure and the clamping first transport plate 4 to move away from the first gantry 1 through the steel cable. After the material on the first transport plate 4 is transferred, the electric hoist 3 drives the clamping structure and the first transport plate 4 to reset and move towards the first gantry 1. The second gantry 2 is used to complete the final uphill or downhill conveying of the material, and works with the first gantry 1 to form a relay transfer, thereby improving the material conveying efficiency in mountainous areas. The electric hoist 3 of the second gantry 2 drives the snap-fit ​​structure to move down, so that the first transport plate 4 corresponds to the support structure. The snap-fit ​​structure continues to move down and disengages from the first transport plate 4. At the same time, the snap-fit ​​structure makes contact with the air supply structure. The air supply structure drives the second pneumatic drive structure connected to it to work. The second pneumatic drive structure pushes the second transport plate 7, which has completed the material stacking, to move directly below the support structure. After the second transport plate 7 disengages from the pneumatic lifting structure, the pneumatic lifting structure automatically resets to its initial height. After the second pneumatic drive structure is activated, the first pneumatic drive structure is started. The first pneumatic drive structure pulls the first transport plate 4 through the T-shaped locking block 8 and moves it towards the pneumatic lifting structure until the first transport plate 4 is above the pneumatic lifting structure. After the first transport plate 4 is on the pneumatic lifting structure, its own weight drives the pneumatic lifting structure to automatically move down a certain distance, so that the T-shaped locking block 8 of the first transport plate 4 is disengaged from the T-shaped locking groove 13 of the first pneumatic telescopic rod 11. Before the snap-fit ​​structure moves down to the bottom, the second transport plate 7 is pushed directly below the supporting structure. The snap-fit ​​structure moves down and snaps into the second transport plate 7. The electric hoist 3 of the second gantry 2 lifts the snap-fit ​​structure, driving the second transport plate 7 and the material on it to be transported upward. During the upward movement of the snap-fit ​​structure, the air supply structure automatically resets, simultaneously driving the first pneumatic drive structure and the second pneumatic drive structure to reset, preparing for subsequent material transfer operations. No manual debugging is required, improving the continuous operation capability of the equipment. During this process, the first gantry 1 can continuously stack materials onto the first transport plate 4 above the pneumatic lifting structure through the automatic gripper structure, realizing the alternating use of the first transport plate 4 and the second transport plate 7, achieving uninterrupted continuous material transport in mountainous areas. This solves the efficiency defects of traditional single-set lifting devices for single loading and unloading, greatly improving the material transfer efficiency of the power line foundation in mountainous areas. No special track needs to be laid, making it suitable for construction conditions with steep mountains and narrow sites, reducing construction deployment costs and site modification difficulties. It should be noted that when the first gantry 1 and the second gantry 2 described in this invention are erected on mountain slopes at different heights, the two gantry frames can be supported and leveled by pouring supports of different heights in the corresponding mountain sections, thereby ensuring that the first gantry 1 and the second gantry 2 are always in a horizontal working state.

[0023] To ensure the smooth lifting and transfer of the second transport plate 7 and the materials on it, for example, such as Figure 4 , Figure 5 , Figure 6 As shown, the present invention also includes a support structure comprising two sets of support plates 9 disposed between two sets of first mounting plates 5. A rotating shaft 10 is fixedly connected to the side of the two sets of support plates 9 at opposite ends. The rotating shaft 10 is rotatably connected to the first mounting plate 5. The two sets of support plates 9 are located below the end of the second gantry 2 that is closer to the first gantry 1.

[0024] During use, as the snap-fit ​​structure moves the first transport plate 4 downward, the first transport plate 4 will fall onto the upper surface of the two sets of support plates 9 and press against them. The support plates 9 can support the first transport plate 4. After the snap-fit ​​structure continues to move downward, it will disengage from the first transport plate 4. At this time, the first transport plate 4 corresponds to the T-shaped slot 13 of the first pneumatic drive structure. After the second pneumatic drive structure pushes the second transport plate 7 to the lower part of the support structure, the first pneumatic drive structure pulls the first transport plate 4 away. The snap-fit ​​structure snaps into the second transport plate 7 and moves it upward. During the upward movement, the second transport plate 7 will press against the support plates 9. The two sets of support plates 9 can swing outward around the rotating shaft 10 to make way for the upward movement and transfer of the second transport plate 7, avoiding interference between the support plates 9 and the second transport plate 7, ensuring that the second transport plate 7 and the materials on it can be lifted and transferred smoothly, and improving the overall smoothness of the equipment operation. It should be noted that the support plate 9 of the present invention is initially set horizontally, and the maximum rotation stroke of the rotating shaft 10 is enough to drive the support plate to swing upward by 90°.

[0025] To facilitate the movement of the corresponding transport platform and prepare for material receiving, for example, such as Figure 4 , Figure 5 , Figure 7 As shown, the present invention also includes a first pneumatic drive structure comprising a first pneumatic telescopic rod 11 disposed on one side of the two sets of first mounting plates 5 close to each other. The first pneumatic telescopic rod 11 is a spring reset cylinder that extends when air is cut off and retracts when air is supplied. The output ends of the two sets of first pneumatic telescopic rods 11 are fixedly connected to a fixed seat 12. The upper surface of the fixed seat 12 is provided with a vertically penetrating T-shaped slot 13, which corresponds to a T-shaped locking block 8. The second pneumatic drive structure is connected to the first pneumatic telescopic rod 11 through a pipeline.

[0026] In use, when the snap-fit ​​structure moves down to place the first transport plate 4 on the supporting structure, the T-shaped snap-fit ​​block 8 of the first transport plate 4 corresponds to the T-shaped snap-fit ​​slot 13 of the first pneumatic telescopic rod 11, preparing for the subsequent pulling action; after the snap-fit ​​structure squeezes the air supply structure, the air supply structure drives the second pneumatic telescopic rod 18 to extend, pushing the second transport plate 7, which has completed the material stacking, to the lower part of the supporting structure. After the second transport plate 7 is separated from the pneumatic lifting structure, the pneumatic lifting structure automatically resets to the initial height. During the extension of the second pneumatic telescopic rod 18, gas is delivered to the first pneumatic telescopic rod 11. After the first pneumatic telescopic rod 11 is ventilated, it retracts and pulls the first transport plate 4 towards the pneumatic lifting structure until the first transport plate 4 is moved above the pneumatic lifting structure, realizing the preparation for material receiving. No additional power control or manual operation is required, ensuring the structural stability and smooth operation during the material transfer process in mountainous areas.

[0027] To avoid potential transportation hazards caused by excessive stockpiling of materials, for example, such as Figure 4 , Figure 6 , Figure 7 , Figure 12 As shown, the present invention also includes a pneumatic lifting structure comprising a support plate 14 horizontally fixedly connected between two sets of second mounting plates 6, a vertically arranged pneumatic cylinder 15 fixedly connected to the lower surface of the support plate 14, the output end of the pneumatic cylinder 15 passing through the support plate 14 and fixedly connected to a horizontal plate 16, a second transport plate 7 located above the horizontal plate 16, the horizontal plate 16 located directly below the end of the first gantry frame 1 near the second gantry frame 2, and a limiting groove 17 corresponding to the horizontal plate 16 provided on the upper surface of the support plate 14.

[0028] When materials are piled onto the second transport plate 7 above the pneumatic lifting structure, the weight of the materials gradually compresses the pneumatic cylinder 15, causing the horizontal plate 16 to move downwards synchronously. This achieves adaptive height adjustment based on the amount of materials piled up, eliminating the need for manual control of lifting and lowering. It is suitable for construction scenarios in mountainous areas without external power, and the downward stroke can be controlled according to the amount of materials, ensuring the stability of the material support. When the materials are piled up to the preset weight, the horizontal plate 16 moves down to the limiting groove 17 of the support plate 14. At this time, the second transport plate 7 moves down to its limit position, allowing for a direct assessment that the material piled up is complete, avoiding potential transportation hazards caused by excessive material piled up. The second pneumatic drive structure pushes the second transport plate 7 to move towards the lower part of the support structure. The limiting cooperation between the horizontal plate 16 and the limiting groove 17 keeps the second transport plate 7 in a horizontal and stable position, preventing deviation during the movement and ensuring the smooth connection between the subsequent locking structure and the second transport plate 7, as well as the smooth transfer of materials.

[0029] For example, such as Figure 6 , Figure 9 , Figure 10As shown, the present invention also includes a second pneumatic drive structure comprising a second pneumatic telescopic rod 18 disposed on one side of the two sets of second mounting plates 6 that are close to each other. The second pneumatic telescopic rod 18 is a spring reset cylinder that retracts when the air is cut off and extends when the air is allowed to pass through. A push block 19 is fixedly connected to the output end of the second pneumatic telescopic rod 18. A slide rod 20 is fixedly connected to the upper surface of the support plate 14 on one side of the two sets of push blocks 19 that are close to each other. After the output end of the pneumatic cylinder 15 moves down, the lower surface of the second transport plate 7 is pressed into contact with the upper surface of the slide rod 20.

[0030] During use, when the pneumatic cylinder 15 moves the second transport plate 7 to its limit position, the lower surface of the second transport plate 7 presses against the upper surface of the slide rod 20. The slide rod 20 supports and lifts the second transport plate 7, reserving an appropriate height for the subsequent snap-fit ​​structure to snap into the second transport plate 7. This avoids the problem of snap-fit ​​difficulties caused by the height mismatch due to the limit of the horizontal plate 16. After the snap-fit ​​structure moves down and presses against the air supply structure, the air supply structure drives the second pneumatic telescopic rod 18 to extend. The push block 19 at its output end simultaneously pushes the second transport plate 7 to move directly below the support plate 9. The two sets of push blocks 19 ensure the stability of the second transport plate 7's movement, preparing for the subsequent snap-fit ​​structure to snap into the second transport plate 7 without the need for manual adjustment.

[0031] To improve the stability of material handling, for example, such as Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the present invention also includes a snap-fit ​​structure comprising a horizontally arranged lifting plate 21, a plurality of vertically arranged lifting rods 22 fixedly connected to the lower surface of the lifting plate 21, and each lifting rod 22 having a pin hole 23 at its lower end. The edges of the first transport plate 4 and the second transport plate 7 are provided with several sets of slots 24. A horizontally arranged pin 25 is slidably connected in the slot 24. A return spring 26 is fixedly connected between one end of the pin 25 and the inner wall of the slot 24. A wedge-shaped surface 27 is provided on the upper edge of the end of the pin 25 away from the return spring 26. A snap-fit ​​groove 28 is provided on the lower surface of the pin 25.

[0032] In use, the electric hoist 3 of the second gantry 2 drives the steel cable to move the lifting plate 21 downward. The lifting plate 21 simultaneously moves the lifting rod 22 downward. At the same time, the lifting rod 22 moves the first transport plate 4 onto the two sets of support plates 9. As the lifting rod 22 continues to move downward, the pin hole 23 of the lifting rod 22 presses the wedge-shaped surface 27 of the pin block 25, causing the pin block 25 to retract into the slot 24, thus separating the lifting rod 22 from the first transport plate 4. After separation, the lifting plate 21 continues to move downward at a certain position and then presses the air supply structure. The air supply structure first drives the second pneumatic extension. The extension rod 18 pushes the second transport plate 7 to move below the support plate 9. During the movement of the second transport plate 7, the pneumatic cylinder 15 automatically moves upward and resets. After the second pneumatic telescopic rod 18 works, the first pneumatic telescopic rod 11 pulls the first transport plate 4 to the upper surface of the horizontal plate 16. After the first transport plate 4 moves to the upper surface of the horizontal plate 16, its own weight drives the pneumatic cylinder 15 to move downward a certain distance, so that the T-shaped locking block 8 disengages from the T-shaped locking slot 13, preventing the first transport plate 4 from moving back when the first pneumatic telescopic rod 11 extends, thus ensuring the stability of material receiving. As the lifting plate 21 continues to move downward, the lifting rod 22 moves downward and presses the wedge-shaped surface 27 of the pin block 25 on the second transport plate 7, causing the pin block 25 to retract into the slot 24. When the lifting rod 22 moves downward to the position corresponding to the pin hole 23 and the pin block 25, the pin block 25 pops out and locks into the pin hole 23 under the action of the return spring 26. The locking groove 28 on the lower surface of the pin block 25 cooperates with the lifting rod 22 to further restrict the relative displacement between the lifting rod 22 and the pin block 25, preventing the second transport plate 7 from shaking or loosening during the transfer process after locking, improving the stability of material transfer, eliminating the need for manual locking, and adapting to the operational needs of mountain construction.

[0033] To avoid interference between the support plate 9 and the second transport plate 7, for example, such as Figure 5 , Figure 12 As shown, the present invention also includes a drive gear 29 fixedly connected to each of the rotating shafts 10. A horizontally arranged drive rack 30 is meshed on one side of the drive gear 29. One end of the drive rack 30 is fixedly connected to the output end of a horizontally arranged third pneumatic telescopic rod 31. The third pneumatic telescopic rod 31 is fixedly connected to the first mounting plate 5. A one-way air intake valve and an adjustable exhaust valve are connected to the third pneumatic telescopic rod 31. The pneumatic cylinder 15 is connected to the one-way air intake valve through a pipeline.

[0034] In use, after the first transport plate 4 is moved to the upper surface of the horizontal plate 16, its own weight compresses the pneumatic cylinder 15. The gas in the pneumatic cylinder 15 is delivered to the third pneumatic telescopic rod 31 through the pipeline and one-way air inlet valve, which drives the third pneumatic telescopic rod 31 to extend and drive the drive rack 30 and drive gear 29, thereby driving the rotating shaft 10 to rotate, so that the two sets of support plates 9 automatically swing outward and open, making way for the subsequent lifting rod 22 to drive the second transport plate 7 to move upward and transfer, avoiding interference between the support plate 9 and the second transport plate 7, realizing the autonomous triggering of the swing of the support plate 9 without external power, which is suitable for mountain construction scenarios; During the material stacking and transfer process, the gas inside the third pneumatic telescopic rod 31 will be slowly discharged through the adjustable exhaust valve, driving the drive rack 30 and the support plate 9 to gradually reset, ensuring the stability of the swing and reset of the support plate 9, and avoiding equipment collision or material shaking due to excessive movement. After the second transport plate 7 and the material on it are successfully lifted and transferred, the support plate 9 can be completely reset to the initial state, preparing for the subsequent reception of the first transport plate 4. The entire swing and reset process does not require manual operation, improving the automation and smoothness of equipment operation. It should be noted that the pneumatic cylinder 15 is equipped with a one-way air inlet. After the pneumatic cylinder 15 completes the exhaust drive of the third pneumatic telescopic rod 31, it can achieve one-way intake of outside air through the one-way air inlet. It can also complete automatic reset with its own spring reset structure, ensuring that the pneumatic cylinder 15 can continuously respond to the squeezing action of the transport plate's own weight. It should also be noted that when a set of transport plates is moved above the pneumatic cylinder 15 and materials are continuously loaded onto the set of transport plates, the third pneumatic telescopic rod 31 remains extended and the support plate 9 is in an open state, thereby providing lateral protection for the loading operation of the first gantry 1; when the pneumatic cylinder 15 moves down to the limit position and the first gantry 1 stops loading, the third pneumatic telescopic rod 31 automatically resets through exhaust, driving the support plate 9 back to a horizontal state so that the second gantry 2 can place another set of transport plates on the support plate 9.

[0035] For example, such as Figure 4 , Figure 7 , Figure 9 As shown, the present invention also includes an air supply structure comprising several sets of air supply cylinders 32 vertically arranged on the side of the second mounting plate 6, and several sets of positioning holes 33 provided on the lower surface of the lifting plate 21. After the lifting plate 21 moves down, the output end of the air supply cylinder 32 is pressed into contact with the positioning hole 33. The air supply cylinder 32 is connected to the second pneumatic telescopic rod 18 through a pipeline. Several sets of support rods 34 are fixedly connected between the second mounting plate 6 and the first mounting plate 5. A support frame 35 is fixedly connected to the lower surface of the second mounting plate 6. The lower end of the support frame 35 is fixedly connected to the upper end of the concrete column poured on the mountain slope.

[0036] When in use, the electric hoist 3 of the second gantry 2 drives the lifting plate 21 to move down. After the lifting plate 21 moves down to the designated position, its lower surface is pressed and contacted with the output end of the air supply cylinder 32. After being compressed, the air supply cylinder 32 supplies air to the second pneumatic telescopic rod 18 through the pipeline, providing power for the extension action of the second pneumatic telescopic rod 18. The support rod 34 between the second mounting plate 6 and the first mounting plate 5 can enhance the connection stability of the two sets of mounting plates and prevent structural misalignment caused by equipment shaking during mountain construction. The support frame 35 on the lower surface of the second mounting plate 6 is fixedly connected to the concrete column poured on the mountain slope, which can provide a stable support foundation for the second mounting plate 6 and the air pressure lifting, air pressure drive and other structures above it. It is suitable for the complex terrain of the mountain slope, improves the structural stability and anti-overturning ability of the whole device in mountain construction, and ensures long-term stable operation of the equipment.

[0037] To improve material handling efficiency, for example, such as Figure 2 , Figure 3 As shown, the present invention also includes an automatic gripper structure comprising a gripper 36 fixedly connected to a steel cable on a first gantry frame 1. The gripper 36 is provided with two sets of symmetrically inclined sliding grooves 37. Inclined clamping plates 38 are slidably connected in the sliding grooves 37. Each of the two sets of clamping plates 38 has a clamping groove 39 at one end that is close to each other. One side of the gripper 36 is provided with a waist hole 40 communicating with the sliding grooves 37. The waist hole 40 is inclined. Both sides of the clamping plates 38 are provided with adjusting rods 41. One end of the adjusting rod 41 passes through the waist hole 40 and is fixedly connected to an adjusting seat 42.

[0038] In use, when the first gantry crane 1 is transferring materials, the lifting rings of the materials are placed in the clamping slots 39 of the two sets of clamping plates 38. Manually pulling the adjusting seat 42 moves the adjusting rod 41 along the inclined waist hole 40, which drives the two sets of clamping plates 38 to tilt downwards and move closer together, quickly clamping the lifting rings into the clamping slots 39, achieving convenient material clamping and adapting to the frequent material transfer needs in mountainous construction. When the electric hoist 3 lifts the clamping seat 36 upwards, relying on the pulling force of the material's own weight, the two sets of clamping plates 38 can be driven to move closer together automatically. The greater the weight of the material, the stronger the clamping force. Effectively prevents materials from shaking or loosening during mountain transport, improving the stability and safety of hoisting. No additional fastening structure is required, and operation is simple. When the material is transported to the top of the first transport plate 4 or the second transport plate 7 and lowered, the clamping plate 38 moves down with the clamping seat 36 to make contact with the transport plate or the material. After being squeezed, the two sets of clamping plates 38 automatically retract inward, and the clamping groove 39 smoothly disengages from the material lifting ring, completing the automatic unloading of the material. The entire clamping, lifting, and unloading process is smoothly connected, without the need for manual loosening of the clamps, reducing the manual operation intensity of mountain hoisting and improving the material transport efficiency.

[0039] A method for hoisting a power line foundation in a mountainous area, using the aforementioned hoisting device, includes the following steps: S1: The first gantry 1 and the second gantry 2 are respectively set up at different heights in the mountainous area and leveled. The electric sliding seats and electric hoists 3 of the two gantry 1 are started. The electric hoist 3 of the first gantry 1 uses steel cables to drive the automatic gripper structure to grab the material and transport it to the direction of the second gantry 2.

[0040] S2: The electric hoist 3 of the first gantry frame 1 lowers the material and piles the material on the second transport plate 7 above the pneumatic lifting structure. The material is continuously piled up until the second transport plate 7 moves down to the designated position. S3: The electric hoist 3 of the second gantry 2 drives the snap-fit ​​structure and the snap-fit ​​first transport plate 4 to complete the remote transfer of the material on the plate, and then drives the snap-fit ​​structure and the first transport plate 4 to reset and move towards the first gantry 1. S4: The electric hoist 3 of the second gantry 2 drives the snap-fit ​​structure to move down, so that the first transport plate 4 corresponds with the support structure and disengages from the snap-fit. The snap-fit ​​structure continues to move down and squeezes the air supply structure. The air supply structure drives the second pneumatic drive structure to work and push the second transport plate 7 to move directly below the support structure. S5: The second pneumatic drive structure works in conjunction with the first pneumatic drive structure. The first pneumatic drive structure pulls the first transport plate 4 to the top of the pneumatic lifting structure via the T-shaped card block 8 to receive subsequent materials. S6: The snap-fit ​​structure snaps into the second transport plate 7 directly below the supporting structure. The electric hoist 3 of the second gantry 2 pulls up the snap-fit ​​structure, driving the second transport plate 7 and the materials on it to complete the high-altitude transfer in the mountain section. At the same time, the first gantry 1 continuously piles materials onto the first transport plate 4, realizing the alternating operation of the two transport plates.

[0041] In use, the first gantry 1 and the second gantry 2 are respectively deployed at different heights in the mountainous area. By pouring supports of different heights in the corresponding mountainous areas, the two gantry frames are supported and leveled to ensure that the first gantry 1 and the second gantry 2 are always in a horizontal working state. The electric sliding seats and electric hoists 3 of the two gantry frames are started. The electric hoist 3 of the first gantry 1 uses steel cables to drive the automatic gripper structure to grab materials and transport them to the second gantry 2. The high and low layout of the double gantry frames is adapted to the mountain slope, realizing the directional transfer of materials from the lower section to the higher section of the mountain. There is no need to lay special tracks, which is suitable for narrow construction sites in mountainous areas and greatly reduces the construction deployment cost and the difficulty of site modification. The electric hoist 3 of the first gantry frame 1 lowers the material and piles it on the second transport plate 7 above the pneumatic lifting structure. The automatic gripper structure continuously piles several groups of materials onto the second transport plate 7 in sequence. The material's own weight squeezes the second transport plate 7, causing the horizontal plate 16 to move down, which in turn drives the pneumatic cylinder 15 to realize the overall downward movement of the pneumatic lifting structure, which in turn moves the second transport plate 7 down to the designated position. The second transport plate 7 centrally supports the material, realizing the batch stacking of the material and avoiding the waiting time between single transfers. The electric hoist 3 of the second gantry 2 drives the snap-fit ​​structure and the snap-fit ​​first transport plate 4 to move to the end away from the first gantry 1 to complete the far-end transfer of the material on the plate. After that, it drives the snap-fit ​​structure and the first transport plate 4 to reset and move towards the first gantry 1. The second gantry 2 completes the final uphill transport of the material and forms a relay transfer with the first gantry 1, effectively improving the overall transport efficiency of materials in the mountainous area. The electric hoist 3 of the second gantry 2 drives the snap-fit ​​structure to move down, so that the first transport plate 4 corresponds with the support structure and disengages from the snap-fit. The snap-fit ​​structure continues to move down and squeezes into contact with the air supply structure. The air supply structure drives the second pneumatic drive structure connected to it to work. The second pneumatic drive structure then pushes the second transport plate 7, which has completed the material stacking, to move directly below the support structure. After the second transport plate 7 disengages from the pneumatic lifting structure, the pneumatic lifting structure automatically resets to its initial height. Because the first pneumatic drive structure is connected to the second pneumatic drive structure, when the second pneumatic drive structure is working, it drives the first pneumatic drive structure to start. The first pneumatic drive structure pulls the first transport plate 4 through the T-shaped locking block 8 and moves it towards the pneumatic lifting structure until the first transport plate 4 is above the pneumatic lifting structure. After the first transport plate 4 is moved onto the pneumatic lifting structure, its own weight drives the pneumatic lifting structure to automatically move down a certain distance, so that the T-shaped locking block 8 of the first transport plate 4 disengages from the T-shaped locking groove 13 of the first pneumatic telescopic rod 11. The snap-fit ​​structure engages with the second transport plate 7 directly below the supporting structure. The electric hoist 3 of the second gantry 2 lifts the snap-fit ​​structure, driving the second transport plate 7 and the material on it to complete the high-altitude transfer in the mountain section. After the snap-fit ​​structure moves up a certain distance, it disengages from the air supply structure. The air supply structure automatically resets, simultaneously driving the first air pressure drive structure to reset. The first air pressure drive structure drives the second air pressure drive structure to complete the reset, preparing for subsequent material transfer operations. During this process, the first gantry 1 can continuously stack materials onto the first transport plate 4 above the pneumatic lifting structure through the automatic gripper structure, realizing the alternating use of the first transport plate 4 and the second transport plate 7. Each pneumatic structure can achieve autonomous cyclic reset with the reset of the air supply structure, without the need for manual adjustment, thus improving the continuous operation capability of the equipment. At the same time, the alternating receiving and conveying of the two transport plates allows for seamless connection of the entire process of hoisting, buffering, transferring and lifting materials from low to high, achieving uninterrupted continuous material transportation in mountainous areas. This solves the efficiency defects of traditional single-set lifting devices for single loading and unloading, and greatly improves the material transfer efficiency of the power line foundation in mountainous areas.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for the foundation of a power line in mountainous terrain, characterized in that, It includes a first gantry (1) and a second gantry (2) set at different heights in the mountainous area; both gantry are equipped with electric slides, and electric hoists (3) are installed on the electric slides. The electric hoist (3) of the first gantry (1) is connected to an automatic gripper structure by a steel cable, and the electric hoist (3) of the second gantry (2) is connected to a clamping structure by a steel cable. The first transport plate (4) is clamped below the clamping structure. Two sets of first mounting plates (5) and two sets of second mounting plates (6) are provided between the two gantry frames. A support structure is provided between the two sets of first mounting plates (5). A pneumatic lifting structure is provided between the two sets of second mounting plates (6). A second transport plate (7) is provided above the pneumatic lifting structure. T-shaped blocks (8) are connected to the side of the first transport plate (4) and the second transport plate (7) near the first gantry frame (1). A first pneumatic drive structure is connected between the two sets of first mounting plates (5). The first pneumatic drive structure is used to pull the corresponding transport plate toward the pneumatic lifting structure through the T-shaped blocks (8). A second pneumatic drive structure connected to the first pneumatic drive structure is connected between the two sets of second mounting plates (6). The second pneumatic drive structure is used to drive the corresponding transport plate toward the support structure directly below. An air supply structure is provided on the second mounting plate (6) to press against the locking structure. The air supply structure is connected to the second pneumatic drive structure.

2. The hoisting device for a power line foundation in mountainous terrain according to claim 1, characterized in that, The supporting structure includes two sets of support plates (9) set between two sets of first mounting plates (5). The two sets of support plates (9) are fixedly connected to a rotating shaft (10) on the side of the opposite end. The rotating shaft (10) is rotatably connected to the first mounting plate (5). The two sets of support plates (9) are located below the end of the second gantry (2) near the first gantry (1).

3. The hoisting device for a power line foundation in mountainous terrain according to claim 2, characterized in that, The first pneumatic drive structure includes a first pneumatic telescopic rod (11) located on one side of the two sets of first mounting plates (5) close to each other. The first pneumatic telescopic rod (11) is a spring reset cylinder that extends when the air is cut off and retracts when the air is ventilated. The output ends of the two sets of first pneumatic telescopic rods (11) are fixedly connected to a fixed seat (12). The upper surface of the fixed seat (12) is provided with a vertically penetrating T-shaped slot (13). The T-shaped slot (13) corresponds to the T-shaped block (8). The second pneumatic drive structure is connected to the first pneumatic telescopic rod (11) through a pipeline.

4. The hoisting device for a power line foundation in mountainous terrain according to claim 3, characterized in that, The pneumatic lifting structure includes a support plate (14) that is horizontally fixed between two sets of second mounting plates (6). A vertically arranged pneumatic cylinder (15) is fixedly connected to the lower surface of the support plate (14). The output end of the pneumatic cylinder (15) passes through the support plate (14) and is fixedly connected to a horizontal plate (16). The second transport plate (7) is located above the horizontal plate (16). The horizontal plate (16) is located directly below the end of the first gantry (1) near the second gantry (2). The upper surface of the support plate (14) is provided with a limiting groove (17) corresponding to the horizontal plate (16).

5. The hoisting device for a power line foundation in mountainous terrain according to claim 4, characterized in that, The second pneumatic drive structure includes a second pneumatic telescopic rod (18) located on one side close to the two sets of second mounting plates (6). The second pneumatic telescopic rod (18) is a spring reset cylinder that retracts when the air is cut off and extends when the air is allowed to pass through. A push block (19) is fixedly connected to the output end of the second pneumatic telescopic rod (18). A slide rod (20) is fixedly connected to the upper surface of the support plate (14) on one side close to the two sets of push blocks (19). After the output end of the pneumatic cylinder (15) moves down, the lower surface of the second transport plate (7) is pressed into contact with the upper surface of the slide rod (20).

6. The hoisting device for a power line foundation in mountainous terrain according to claim 5, characterized in that, The snap-fit ​​structure includes a horizontally arranged lifting plate (21), and a number of vertically arranged lifting rods (22) are fixedly connected to the lower surface of the lifting plate (21). The lower end of each lifting rod (22) is provided with a pin hole (23). The edges of the first transport plate (4) and the second transport plate (7) are provided with several sets of slots (24). A horizontally arranged pin (25) is slidably connected in the slot (24). A reset spring (26) is fixedly connected between one end of the pin (25) and the inner wall of the slot (24). A wedge-shaped surface (27) is provided on the upper edge of the end of the pin (25) away from the reset spring (26). A snap-fit ​​groove (28) is provided on the lower surface of the pin (25).

7. The hoisting device for a power line foundation in mountainous terrain according to claim 6, characterized in that, A drive gear (29) is fixedly connected to each shaft (10). A horizontally arranged drive rack (30) meshes with one side of the drive gear (29). One end of the drive rack (30) is fixedly connected to the output end of a horizontally arranged third pneumatic telescopic rod (31). The third pneumatic telescopic rod (31) is fixedly connected to the first mounting plate (5). A one-way air intake valve and an adjustable exhaust valve are connected to the third pneumatic telescopic rod (31). The pneumatic cylinder (15) is connected to the one-way air intake valve through a pipeline.

8. The hoisting device for a power line foundation in mountainous terrain according to claim 7, characterized in that, The air supply structure includes several sets of air supply cylinders (32) vertically arranged on the side of the second mounting plate (6). The lower surface of the lifting plate (21) is provided with several sets of positioning holes (33). After the lifting plate (21) moves down, the output end of the air supply cylinder (32) is pressed into contact with the positioning hole (33). The air supply cylinder (32) is connected to the second pneumatic telescopic rod (18) through a pipeline. Several sets of support rods (34) are fixedly connected between the second mounting plate (6) and the first mounting plate (5). A support frame (35) is fixedly connected to the lower surface of the second mounting plate (6). The lower end of the support frame (35) is fixedly connected to the upper end of the concrete column poured on the mountain slope.

9. A hoisting device for a power line foundation in mountainous terrain according to claim 8, characterized in that, The automatic gripper structure includes a gripper (36) fixedly connected to the steel cable on the first gantry (1). The gripper (36) is provided with two sets of symmetrically inclined sliding grooves (37). Inclined clamping plates (38) are slidably connected in the sliding grooves (37). The two sets of clamping plates (38) are provided with clamping grooves (39) at their closest ends. A waist hole (40) communicating with the sliding grooves (37) is provided on one side of the gripper (36). The waist hole (40) is inclined. Adjusting rods (41) are provided on both sides of the clamping plates (38). One end of the adjusting rod (41) passes through the waist hole (40) and is fixedly connected to an adjusting seat (42).

10. A method for hoisting a power line foundation in a mountainous area, using a power line foundation hoisting device as described in any one of claims 1 to 9, characterized in that, Includes the following steps; S1: The first gantry (1) and the second gantry (2) are respectively placed at different heights in the mountain section and leveled. The electric sliding seats and electric hoists (3) of the two gantry are started. The electric hoist (3) of the first gantry (1) grabs the material through the automatic gripper structure driven by the steel cable and transports it to the direction of the second gantry (2). S2: The electric hoist (3) of the first gantry (1) lowers the material and piles the material on the second transport plate (7) above the pneumatic lifting structure. The material is continuously piled up until the second transport plate (7) moves down to the designated position. S3: The electric hoist (3) of the second gantry (2) drives the snap-fit ​​structure and the snap-fit ​​first transport plate (4) to complete the remote transfer of the material on the plate, and then drives the snap-fit ​​structure and the first transport plate (4) to reset and move towards the first gantry (1); S4: The electric hoist (3) of the second gantry (2) drives the snap-fit ​​structure to move down, so that the first transport plate (4) corresponds to the support structure and disengages from the snap-fit. The snap-fit ​​structure continues to move down and squeezes the air supply structure. The air supply structure drives the second air pressure drive structure to work and push the second transport plate (7) to move directly below the support structure. S5: The second pneumatic drive structure works in conjunction with the first pneumatic drive structure. The first pneumatic drive structure pulls the first transport plate (4) to the top of the pneumatic lifting structure through the T-shaped card block (8) to receive subsequent materials. S6: The snap-fit ​​structure snaps into the second transport plate (7) directly below the support structure. The electric hoist (3) of the second gantry (2) lifts the snap-fit ​​structure, driving the second transport plate (7) and the material on the plate to complete the high-altitude transfer in the mountain section. At the same time, the first gantry (1) continuously piles materials onto the first transport plate (4) to realize the alternating operation of the two transport plates.

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