Material lifting device for high-rise building construction

Abstract

The invention discloses a material lifting device for high-rise building construction, and relates to the field of building construction.The material lifting device comprises lifting equipment, a winch is arranged at the top of the lifting equipment, a supporting wheel is fixedly installed on the front end face of the winch, and a steel wire rope is wound on the outer surface of the winch and extends to the position below the supporting wheel; a storage cage is arranged below the lifting hook, four corners of the upper surface of the storage cage extend to the lifting hook to be provided with connecting ropes, and a supporting mechanism is arranged on the outer surface of the storage cage and used for protecting the storage cage in the lifting process; symmetrical vertical anti-shaking rod pieces of the supporting mechanism are matched with the protection frame to form a full-lifting-stroke guiding and limiting structure, horizontal swinging, front-back shaking and rotation around a shaft of the storage cage under the high-altitude wind load are limited from the mechanical structure, the core pain point of wind-induced swinging of a traditional suspension type lifting device is solved, and the safety of the storage cage is improved. Compared with the prior art, the overall stability of the material lifting process is improved.

Description

Technical Field

[0001] This invention relates to building construction technology, specifically to a material lifting device for high-rise building construction. Background Technology

[0002] Construction material hoisting devices for high-rise buildings (also known as construction material hoists) are core vertical transportation equipment in the construction process of high-rise buildings (usually referring to buildings with 10 or more floors and a height of over 27 meters). They mainly achieve the vertical transportation of various building materials such as steel bars, concrete, formwork, and small construction tools from the ground to the high-rise working floors through the coordinated action of core components such as winches, wire ropes, and load-bearing cages. They are key equipment for ensuring the construction progress of high-rise buildings and connecting various construction processes, and are widely used in the construction sites of various high-rise buildings such as residential buildings, office buildings, and commercial complexes.

[0003] However, existing material lifting devices for high-rise building construction have significant technical shortcomings in ultra-high-rise construction scenarios: due to the high height of high-rise building construction, wind force in high-altitude areas is significantly greater than at ground level, and there are complex wind conditions such as instantaneous gusts and pulsating winds. Existing material lifting devices generally adopt a suspended structure design of "winch + wire rope + open cage," lacking a targeted wind-resistant and load-bearing structure. When the cage carrying building materials is lifted to a high altitude, the wind force directly acts on the cage and its internal materials, generating horizontal thrust, causing the cage to malfunction. The swaying, back-and-forth movement, and even rotation around the axis of the wire rope caused by the wind not only seriously affects the overall stability of the material lifting process, causing the cage to collide with the building facade and construction scaffolding, resulting in material spillage, cage damage, and scratches on the facade coating, but also may cause uneven stress on the wire rope and fatigue breakage due to excessive swaying amplitude, or the cage to tilt and overturn, posing a great safety hazard to workers at height and on the ground, and in severe cases, causing safety accidents. At the same time, it also reduces the efficiency of material lifting and affects the construction progress. Summary of the Invention

[0004] The purpose of this invention is to provide a material lifting device for high-rise building construction, in order to solve the problem that the existing suspended material lifting devices are prone to swaying and shaking under high-altitude wind loads, resulting in poor lifting stability and serious safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a material lifting device for high-rise building construction, comprising a lifting device, a winch being provided at the top of the lifting device, a support wheel being fixedly installed at the front end of the winch, a steel wire rope being wound around the outer surface of the winch extending to below the support wheel, a hook being provided at the bottom of the steel wire rope, a storage cage being provided below the hook, connecting ropes being installed at the four corners of the upper surface of the storage cage extending to the hook, and a support mechanism being provided on the outer surface of the storage cage for protecting the storage cage during lifting;

[0006] The support mechanism includes a support plate, which is symmetrically fixed to the top of the front face of the lifting equipment. One side of the top of the support plate extends to the ground and is fixedly installed with anti-sway rods. A protective frame is provided on the outer surface of the storage cage between the two anti-sway rods.

[0007] A buffer frame is fixedly installed at each of the four corners of the inner wall of the protective frame. A fixed groove is opened on both sides of the buffer frame. A movable rod is movably installed at the opening of one end of the fixed groove. A No. 1 spring is installed at one end of the movable rod extending into the fixed groove. A memory metal spring is fixedly installed between two symmetrically arranged movable rods.

[0008] The outer surface of the protective frame is also equipped with a buffer mechanism near the anti-sway bar to reduce the impact force of the protective frame on the anti-sway bar.

[0009] Furthermore, the buffer mechanism includes a fixed frame, which is fixedly installed at the middle of both sides of the protective frame. The fixed frame has a guide groove extending through both the front and rear ends. A fixed rod is fixedly connected to the middle of the upper and lower ends of the inner wall of the guide groove. Movable parts are symmetrically and movably installed on the outer surface of the fixed rod. A second spring is provided between the movable parts and the inner wall of the guide groove. External connecting parts are rotatably installed at both the front and rear ends of the movable parts through the outside of the guide groove.

[0010] A guide disc is movably mounted between several of the external connecting parts that are symmetrically arranged front and back, and a support guide roller is rotatably mounted on both sides of the inner wall of the guide disc.

[0011] Furthermore, a groove is provided in the middle of one side of the outer surface of the support guide roller, and one side of the outer surface of the anti-sway rod is located between the two support guide rollers, with the anti-sway rod and the groove fitting together.

[0012] Furthermore, one end of the external connector is located near the middle of the outer surface of the guide disk, and the guide disk and the external connector are rotatably connected.

[0013] Furthermore, a through hole is provided in the middle of one end of the movable part, the outer diameter of the fixed rod is smaller than the inner diameter of the through hole, one side of the outer surface of the fixed rod is located in the through hole, and the fixed rod and the through hole are fitted together.

[0014] Furthermore, the outer diameter of the second spring is larger than the outer diameter of the fixed rod, and the second spring is sleeved on the outer surface of the fixed rod.

[0015] Furthermore, the cross-section of the memory metal spring is a wavy structure, and one end of the memory metal spring abuts against the outer surface of the storage cage.

[0016] Furthermore, both the storage cage and the protective frame have square cross-sections, with the protective frame fitted onto the bottom of the outer surface of the storage cage, and the storage cage and the protective frame being coupled to each other.

[0017] Compared with the prior art, the material lifting device for high-rise building construction provided by the present invention has the following beneficial effects:

[0018] 1. This invention uses symmetrical vertical anti-sway rods of the support mechanism in conjunction with the protective frame to form a guide and limiting structure for the entire lifting stroke. This mechanically restricts the horizontal swing, back-and-forth swaying, and rotation around the axis of the hoisting cage under high-altitude wind load, solving the core problem of wind-induced swaying in traditional suspended lifting devices. Compared with existing technologies, this invention improves the overall stability of the material lifting process.

[0019] 2. The present invention uses a multi-level flexible buffer structure composed of a buffer frame on the inner wall of the protective frame, a No. 1 spring, and a memory metal spring sheet to buffer and absorb energy for vibration and instantaneous impact during the lifting process of the storage cage, avoiding rigid collision between the cage and the protective frame. At the same time, the wave-shaped memory metal spring sheet can adapt to deformation and quickly reset, ensuring the stability of the storage cage's posture within the protective frame. Compared with the prior art, this invention improves the operational safety of the device.

[0020] 3. This invention, through the interlocking and rolling guidance of the guide plate, support guide roller and anti-sway rod of the buffer mechanism, not only ensures the smooth vertical lifting of the storage cage and avoids jamming problems in the anti-sway structure, but also, through the linkage structure of the moving part, the second spring and the external connecting part, can adaptively offset the lateral impact force of the cage swing on the anti-sway rod, and avoid collision damage to the guide structure. Compared with the prior art, this invention improves the service life and operating efficiency of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2This is a schematic diagram of the storage cage structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the protective frame structure provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the guide disk structure provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the buffer frame provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the fixing frame provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Lifting equipment; 2. Winch; 3. Support wheel; 4. Wire rope; 5. Hook; 6. Storage cage; 7. Connecting rope; 8. Support plate; 9. Anti-sway rod; 10. Protective frame; 11. Buffer frame; 12. Fixed groove; 13. Movable rod; 14. No. 1 spring; 15. Memory metal spring; 16. Fixed frame; 17. Guide plate; 18. Support guide roller; 19. Inner guide groove; 20. Fixed rod; 21. Movable part; 22. No. 2 spring; 23. External connecting part. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] As attached Figure 1 To be continued Figure 6 As shown:

[0032] Example 1:

[0033] This invention provides a material lifting device for high-rise building construction, including a lifting device 1, a winch 2 at the top of the lifting device 1, a support wheel 3 fixedly installed at the front end of the winch 2, a wire rope 4 wound around the outer surface of the winch 2 extending to below the support wheel 3, a hook 5 at the bottom of the wire rope 4, a storage cage 6 below the hook 5, connecting ropes 7 extending from the four corners of the upper surface of the storage cage 6 to the hook 5, and a support mechanism on the outer surface of the storage cage 6 for protecting the storage cage 6 during lifting;

[0034] The support mechanism includes a support plate 8, which is symmetrically fixed to the top of the front end face of the lifting equipment 1. One side of the top of the support plate 8 extends to the ground and is fixedly installed with anti-sway rods 9. A protective frame 10 is set between the two anti-sway rods 9 on the outer surface of the storage cage 6.

[0035] Both the storage cage 6 and the protective frame 10 have square cross-sections. The protective frame 10 is fitted onto the bottom of the outer surface of the storage cage 6, and the storage cage 6 and the protective frame 10 are coupled to each other.

[0036] A buffer frame 11 is fixedly installed at each of the four corners of the inner wall of the protective frame 10. A fixed groove 12 is opened on both sides of the buffer frame 11. A movable rod 13 is movably installed at one end of the fixed groove 12. One end of the movable rod 13 extends into the fixed groove 12 and is installed with a No. 1 spring 14. A memory metal spring 15 is fixedly installed between the two symmetrically arranged movable rods 13. The cross-section of the memory metal spring 15 is a wave-shaped structure. One end of the memory metal spring 15 abuts against the outer surface of the storage cage 6.

[0037] A buffer mechanism is also provided on the outer surface of the protective frame 10 near the anti-sway bar 9 to reduce the impact force of the protective frame 10 on the anti-sway bar 9.

[0038] Working principle: First, before the construction of the high-rise building, the staff completes the overall installation and debugging of the device. First, the two sets of support plates 8 are symmetrically welded and fixed to the top of the front end of the lifting equipment 1. Then, the top of the two anti-sway rods 9 are fixedly connected to the support plates 8, and the bottom of the anti-sway rods 9 are vertically fixed to the construction ground to ensure that the two anti-sway rods 9 are parallel to each other and vertically perpendicular, forming a guide limit reference for the entire lifting stroke. Then, the protective frame 10 is fitted onto the bottom of the outer surface of the hoisting cage 6, so that the memory metal spring pieces 15 at the four corners of the inner wall of the protective frame 10 abut against the outer surface of the hoisting cage 6, completing the coupling assembly of the hoisting cage 6 and the protective frame 10. Then, one end of the four sets of connecting ropes 7 are fixed to the four corners of the upper surface of the hoisting cage 6, and the other end of the connecting ropes 7 is gathered and hung on the hook 5 to complete the connection between the hoisting cage 6 and the wire rope 4. At the same time, it is ensured that the protective frame 10 is placed between the two anti-sway rods 9, and the buffer mechanism is matched with the anti-sway rods 9, completing the installation and debugging of the device.

[0039] Next, the staff placed the building materials to be lifted steadily inside the hoisting cage 6, evenly distributing the weight of the materials to prevent the hoisting cage 6 from being unbalanced. After the materials were loaded, the staff started the winch 2 of the lifting equipment 1. The winch 2 rotated to wind up the wire rope 4. The wire rope 4 changed direction through the support wheel 3, driving the hook 5, the hoisting cage 6 and the protective frame 10 to be lifted vertically upwards in sync. During the lifting process, the two anti-sway rods 9 formed a horizontal mechanical limit on the protective frame 10, directly restricting the left and right swing and back and forth sway of the hoisting cage 6 under the action of wind load. This fundamentally solved the problem of wind-induced swaying in suspended lifting, ensuring that the hoisting cage 6 was always lifted steadily along the vertical path.

[0040] Then, during the lifting process, if a sudden gust of wind causes the storage cage 6 to vibrate or experience a small impact, the storage cage 6 will transfer the impact force to the contacting shape memory metal spring 15. The wave-shaped shape memory metal spring 15 will undergo adaptive deformation under force, absorbing part of the impact energy. At the same time, it will push the movable rods 13 on both sides to slide inward along the fixed groove 12, squeezing the No. 1 spring 14 in the fixed groove 12. The No. 1 spring 14 will be compressed and further buffer and absorb energy, achieving multi-level flexible protection for the storage cage 6. When the impact force disappears, the No. 1 spring 14 will rebound and push the movable rod 13 to reset. The shape memory metal spring 15 will synchronously restore its initial shape based on its own shape memory characteristics, so that the storage cage 6 can quickly return to the center position of the protective frame 10, ensuring the stability of the storage cage 6 during the lifting process and avoiding rigid collision between the cage and the protective frame 10, which could cause equipment damage or material spillage.

[0041] Subsequently, the staff used winch 2 to control the lifting cage 6 to the target construction floor. The winch 2 then stopped and locked. At this time, the limiting function of the anti-sway bar 9 prevented the lifting cage 6 from swaying during the unloading process. The staff could then smoothly remove the building materials from the lifting cage 6, completing a single material lifting operation. After unloading, the staff controlled the winch 2 to rotate in the opposite direction, releasing the wire rope 4 and driving the lifting cage 6 and the protective frame 10 to descend vertically to the ground along the anti-sway bar 9, preparing for the next material loading and lifting operation.

[0042] Finally, after the high-rise building construction is completed, the workers first separate the storage cage 6 from the hook 5, then remove the protective frame 10 from the storage cage 6, and then remove the anti-sway rod 9 and the support plate 8 in sequence to complete the dismantling of the device; the dismantled parts can be classified and stored and reused in subsequent construction projects to reduce construction costs.

[0043] Example 2:

[0044] This embodiment is basically the same as the previous embodiment, except that the buffer mechanism includes a fixed frame 16, which is fixedly installed at the middle of both sides of the protective frame 10. The fixed frame 16 has a guide groove 19 through both the front and rear ends. The middle of the upper and lower ends of the inner wall of the guide groove 19 is fixedly connected to a fixed rod 20. The outer surface of the fixed rod 20 is symmetrically and movably installed with a movable part 21. A second spring 22 is provided between the movable part 21 and the inner wall of the guide groove 19. The front and rear ends of the movable part 21 are rotatably installed with an external connecting part 23 through the outside of the guide groove 19.

[0045] A guide plate 17 is movably installed between several symmetrically arranged external connecting parts 23. Supporting guide rollers 18 are rotatably installed on both sides of the inner wall of the guide plate 17.

[0046] A groove is provided in the middle of one side of the outer surface of the support guide roller 18, and one side of the outer surface of the anti-sway rod 9 is located between the two support guide rollers 18. The anti-sway rod 9 and the groove are interlocked.

[0047] One end of the outer connector 23 is located near the middle of the outer surface of the guide plate 17, and the guide plate 17 and the outer connector 23 are rotatably connected.

[0048] The movable part 21 has a through hole in the middle of one end. The outer diameter of the fixed rod 20 is smaller than the inner diameter of the through hole. One side of the outer surface of the fixed rod 20 is located in the through hole. The fixed rod 20 and the through hole are fitted together.

[0049] The outer diameter of spring 22 is larger than the outer diameter of the fixed rod 20, and spring 22 is sleeved on the outer surface of the fixed rod 20.

[0050] Working principle: First, when the staff completes the installation and debugging of the device, after the protective frame 10 is placed on the outside of the storage cage 6, the position of the guide plates 17 on both sides of the protective frame 10 is adjusted so that the anti-sway rod 9 is embedded between the grooves of the two support guide rollers 18 in the guide plate 17, ensuring that the grooves of the support guide rollers 18 are completely fitted with the outer surface of the anti-sway rod 9, and the support guide rollers 18 can roll vertically along the outer surface of the anti-sway rod 9; at the same time, it is checked that the moving part 21 can slide smoothly along the fixed rod 20, and that the second spring 22 has no jamming or deformation, ensuring that the buffer mechanism can function normally;

[0051] Next, after the staff finished loading the materials, they started the winch 2 to lift the storage cage 6 and the protective frame 10 vertically. During the lifting process, the support guide roller 18 in the guide plate 17 rolled synchronously along the surface of the anti-sway rod 9, converting the sliding friction between the protective frame 10 and the anti-sway rod 9 into rolling friction, which greatly reduced the resistance during the lifting process, ensuring the smooth lifting of the storage cage 6 and avoiding problems such as jamming and abnormal noise in the anti-sway structure. At the same time, the interlocking structure of the support guide roller 18 and the anti-sway rod 9 further strengthened the horizontal limiting effect, preventing the storage cage 6 from rotating around the vertical axis and improving the stability of the lifting process.

[0052] Then, during the lifting process, if the high-altitude wind load causes the hoisting cage 6 and the protective frame 10 to generate a lateral swaying impact force, the impact force will be transmitted to the guide plate 17 through the fixed frame 16. The guide plate 17 drives the movable part 21 to slide along the fixed rod 20 through the external connector 23. When the movable part 21 slides, it squeezes the second spring 22 on the corresponding side. The second spring 22 is compressed and shrinks, adaptively absorbing the lateral impact energy and offsetting the rigid collision of the protective frame 10 with the anti-sway rod 9. This not only avoids the problem of deformation and damage to the anti-sway rod 9 and the guide structure due to long-term collision, but also further weakens the hoisting cage sway caused by wind load, and improves the service life and operational stability of the device.

[0053] During the lifting process, if the hoisting cage 6 swings slightly in the front and back directions, the guide plate 17 can adaptively adjust the contact angle between the support guide roller 18 and the anti-sway rod 9 through the rotational connection with the external connector 23. This ensures that the support guide roller 18 always remains tightly engaged with the anti-sway rod 9, preventing disengagement or jamming, and ensuring the continuous effectiveness of the guide limit function throughout the entire lifting stroke. At the same time, in conjunction with the multi-level buffer structure in the protective frame 10, it achieves flexible protection for the hoisting cage 6 in all directions, limiting the large swing of the cage and avoiding collision damage caused by rigid limit.

[0054] Subsequently, the staff lifted the hoisting cage 6 to the target floor to complete the unloading. During the process of controlling the cage to descend to the ground, the support guide roller 18 of the buffer mechanism always rolled along the anti-sway rod 9 to ensure the stability of the descent process and avoid the problem of swaying or overturning due to excessive descent speed. During continuous lifting operations, the staff can periodically add lubricating oil to the moving parts such as the support guide roller 18 and the moving parts 21, and check the elasticity of the second spring 22 and the first spring 14 to ensure the long-term stable operation of the device.

[0055] Finally, after the construction is completed, the staff separates the guide plate 17 from the anti-sway rod 9, and then disassembles, cleans and stores each component in turn. The installation, use and disassembly process of the entire device is simple and convenient. On-site assembly can be completed without professional equipment, which is suitable for the fast-paced construction needs of high-rise building construction sites.

[0056] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A material lifting device for high-rise building construction, comprising a lifting device (1), wherein a winch (2) is provided on the top of the lifting device (1), a support wheel (3) is fixedly installed at the front end face of the winch (2), and a steel wire rope (4) is wound around the outer surface of the winch (2) extending to below the support wheel (3), and a hook (5) is provided at the bottom of the steel wire rope (4), characterized in that, A storage cage (6) is provided below the hook (5). Connecting ropes (7) are installed on the hook (5) at the four corners of the upper surface of the storage cage (6). A support mechanism is provided on the outer surface of the storage cage (6) to protect the storage cage (6) during lifting. The support mechanism includes a support plate (8), which is symmetrically fixed to the top of the front end face of the lifting equipment (1). One side of the top end of the support plate (8) extends to the ground and is fixedly installed with anti-sway rods (9). The outer surface of the storage cage (6) is provided with a protective frame (10) between the two anti-sway rods (9). A buffer frame (11) is fixedly installed at each of the four corners of the inner wall of the protective frame (10). A fixed groove (12) is opened on both sides of the buffer frame (11). A movable rod (13) is movably installed at one end of the fixed groove (12). One end of the movable rod (13) extends into the fixed groove (12) and a No. 1 spring (14) is installed. A memory metal spring sheet (15) is fixedly installed between the two symmetrically arranged movable rods (13). The outer surface of the protective frame (10) near the anti-sway bar (9) is also provided with a buffer mechanism to reduce the impact force of the protective frame (10) on the anti-sway bar (9).

2. The material lifting device for high-rise building construction according to claim 1, characterized in that, The buffer mechanism includes a fixed frame (16), which is fixedly installed at the middle of both sides of the protective frame (10). The fixed frame (16) has a guide groove (19) through both the front and rear ends. A fixed rod (20) is fixedly connected to the middle of the upper and lower ends of the inner wall of the guide groove (19). A movable part (21) is symmetrically and movably installed on the outer surface of the fixed rod (20). A second spring (22) is provided between the movable part (21) and the inner wall of the guide groove (19). An external connector (23) is rotatably installed at both the front and rear ends of the movable part (21) through the outside of the guide groove (19). A guide disc (17) is movably installed between several of the external connecting parts (23) that are symmetrical front and back, and a support guide roller (18) is rotatably installed on both sides of the inner wall of the guide disc (17).

3. The material lifting device for high-rise building construction according to claim 2, characterized in that, A groove is provided in the middle of one side of the outer surface of the support guide roller (18), and one side of the outer surface of the anti-sway rod (9) is located between the two support guide rollers (18). The anti-sway rod (9) and the groove are fitted together.

4. A material lifting device for high-rise building construction according to claim 2, characterized in that, One end of the external connector (23) is located near the middle of the outer surface of the guide disk (17), and the guide disk (17) and the external connector (23) are rotatably connected.

5. A material lifting device for high-rise building construction according to claim 2, characterized in that, The movable part (21) has a through hole in the middle of one end. The outer diameter of the fixed rod (20) is smaller than the inner diameter of the through hole. One side of the outer surface of the fixed rod (20) is located in the through hole. The fixed rod (20) and the through hole are fitted together.

6. A material lifting device for high-rise building construction according to claim 2, characterized in that, The outer diameter of the second spring (22) is larger than the outer diameter of the fixed rod (20), and the second spring (22) is sleeved on the outer surface of the fixed rod (20).

7. A material lifting device for high-rise building construction according to claim 1, characterized in that, The cross-section of the memory metal spring (15) is a wave-shaped structure, and one end of the memory metal spring (15) abuts against the outer surface of the storage cage (6).

8. A material lifting device for high-rise building construction according to claim 1, characterized in that, The storage cage (6) and the protective frame (10) are both square in cross-section. The protective frame (10) is fitted onto the bottom of the outer surface of the storage cage (6). The storage cage (6) and the protective frame (10) are coupled to each other.

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