Self-climbing discharging platform and using method thereof

Abstract

The invention discloses a self-climbing discharging platform and a using method thereof.The platform comprises two rails which are arranged in parallel at an interval and used for straddling a floor slab to be vertically installed on the outer side of a building main body structure; the two sets of lifting mechanisms are symmetrically arranged on the two rails, and the two sets of lifting mechanisms synchronously ascend and descend on the two rails; the unloading platform is positioned on the outer side of the track and is horizontally arranged on the two groups of lifting mechanisms; the cleaning mechanism comprises shaft rods and rolling brushes, the shaft rods are arranged at the bottom of the lifting mechanism or the bottom of the discharging platform, the rolling brushes are rotationally installed on the shaft rods, and the rolling brushes make contact with the rails. According to the automatic rail cleaning device, the rails can be automatically cleaned, abrasion of the rails is avoided, the problem of jamming in the lifting process of the discharging platform is avoided, and the smoothness and safety of the lifting process are improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a self-climbing unloading platform and its usage method. Background Technology

[0002] A self-climbing unloading platform is a temporary high-altitude material transfer facility attached to the main structure of a building and equipped with a self-powered climbing system. It is mainly used in the construction of high-rise buildings, super high-rise buildings, and large steel structure buildings to receive building materials such as steel bars, formwork, and concrete components transferred by tower cranes, enabling vertical transfer and temporary storage of materials between floors. Compared with traditional cantilevered unloading platforms, it has core advantages such as high automation, strong safety, and reduced construction costs. Existing self-climbing unloading platforms use two tracks vertically installed across floors on the building, with a lifting mechanism at the top of each track and rollers installed on the unloading platform. During the lifting process, the platform is raised and lowered by the lifting mechanism, and the rollers travel along the tracks. Its disadvantages are: firstly, the tracks are exposed to the outdoor environment for a long time, easily accumulating dust, gravel, slurry, and other deposits. Without an automatic cleaning structure, the rollers experience significant resistance from these deposits during climbing, making them prone to jamming. Furthermore, the presence of small particles causes wear on both the rollers and the tracks, affecting the smoothness and safety of the entire platform's operation. Firstly, after the unloading platform is raised to the target floor, building materials are usually transferred and transported to the floor from the platform. The unloading platform is suspended in the air, and its narrow space restricts the operating space for workers, resulting in low work efficiency. Secondly, it is impossible to determine whether the unloading platform is overloaded after being loaded with building materials. Overloading can easily occur unknowingly, leading to the safety risk of the unloading platform falling. In particular, the weight of the unloading platform is increased when workers are on it, making it even more likely that building materials and workers will fall from a height due to overloading. Summary of the Invention

[0003] The purpose of this invention is to provide a self-climbing unloading platform and its usage method to solve the problems of high climbing resistance, easy jamming during climbing, wear on the track caused by the accumulation of deposits on the track, and the impact on the smoothness and safety of the lifting and lowering operation of the self-climbing unloading platform.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a self-climbing unloading platform, comprising:

[0005] The track consists of two parallel, spaced-apart rails, used to span the floor slabs and vertically installed on the outside of the main building structure;

[0006] The lifting mechanism consists of two sets symmetrically arranged on the two tracks, with the two sets of lifting mechanisms moving up and down synchronously on the two tracks;

[0007] The unloading platform is located horizontally on the two sets of lifting mechanisms outside the track;

[0008] The cleaning mechanism includes shafts located at the bottom of the lifting mechanism or unloading platform, and roller brushes rotatably mounted on each shaft, the roller brushes contacting the track.

[0009] Furthermore, in the self-climbing unloading platform provided by the present invention, each of the tracks has a continuous track groove and a toothed rail at the bottom of the groove symmetrically arranged on both sides along its length direction; each set of lifting mechanisms includes a lifting seat, a drive motor installed inside the lifting seat, the lifting seat and / or the drive motor connected to the unloading platform, the output shaft of the drive motor passing through the lifting seat and connected to a drive shaft, a drive bevel gear installed at each of the front and rear ends of the drive shaft, each drive bevel gear meshing with a driven bevel gear, each driven bevel gear being mounted on a driven shaft, the driven shaft being rotatably connected to the lifting seat perpendicular to the drive shaft, and a spur gear installed at the other end of each driven shaft, the spur gear meshing with the toothed rail in the track groove on the corresponding side.

[0010] Furthermore, in the self-climbing unloading platform provided by the present invention, the lifting mechanism further includes:

[0011] The guide assembly includes a wheel groove extending along the front of each of the tracks; it also includes a guide wheel mounted on the lifting seat at the wheel groove of the track on the corresponding side, the guide wheel being rotatably mounted within the track wheel groove.

[0012] Furthermore, the self-climbing unloading platform provided by the present invention also includes:

[0013] The first anti-fall mechanism includes an automatic telescopic rod installed at the bottom of both sides of the width direction of each set of lifting mechanisms or unloading platforms. The automatic telescopic rod is connected to multiple safety rods through a truss. The safety rods serve as axles, and their ends extend out of the roller brush. It also includes multiple safety locking holes evenly arranged along the length direction of the side wings, with side wings extending to both sides of the bottom of each track. When the automatic telescopic rod is in the extended state, the truss drives the ends of the safety rods to insert into the corresponding safety locking holes installed on the side wings on both sides of the track. When the automatic telescopic rod is in the retracted state, the safety rods are pulled out from the corresponding safety locking holes.

[0014] Furthermore, the self-climbing unloading platform provided by the present invention includes:

[0015] The outer frame is horizontally mounted on the two sets of lifting mechanisms;

[0016] The wheeled unloading platform is mounted inside the outer frame by means of wheels located underneath it.

[0017] Furthermore, the self-climbing unloading platform provided by the present invention further includes:

[0018] The locking pin assembly includes two parallel and spaced vertical locking pins and a locking rod connected at the same end between them. One of the vertical locking pins is inserted into a locking pin hole provided at the top edge of the outer frame, and the other vertical locking pin is inserted into a locking pin hole provided at the top edge of the wheeled unloading platform. One of the vertical locking pins is rotatably installed in the locking pin hole of the corresponding outer frame or wheeled unloading platform.

[0019] Furthermore, the self-climbing unloading platform provided by the present invention further includes:

[0020] The weighing sensors are multiple sensors that are evenly distributed on the bottom plate of the wheel-type unloading platform.

[0021] A control box is installed on the wheeled unloading platform, and a controller is installed inside it.

[0022] Furthermore, the self-climbing unloading platform provided by the present invention also includes:

[0023] The second fall protection mechanism includes a safety winch fixedly installed on the roof of the main building structure. The safety winch is obliquely connected to the outer frame of the unloading platform via a sling wound on it.

[0024] Furthermore, the self-climbing unloading platform provided by the present invention also includes:

[0025] The material receiving mechanism includes a material receiving winch aligned with each floor slab at the unloading platform. The winch is connected to a pull rod via a cable wound around it. The pull rod has two pull rings that engage with hooks on the wheeled unloading platform. The mechanism also includes two guide rails symmetrically laid on each floor slab and aligned with the wheels of the wheeled unloading platform. When the wheeled unloading platform moves into the floor, it travels on the guide rails via its wheels. Wheeled unloading platform.

[0026] To solve the above-mentioned technical problems, another technical solution provided by the present invention is: a method of using a self-climbing unloading platform, wherein the self-climbing unloading platform includes a track, a lifting mechanism, an unloading platform, a cleaning mechanism, a first anti-fall mechanism, a second anti-fall mechanism, and a material collection mechanism; the unloading platform includes an outer frame, a wheeled unloading platform, and a locking pin assembly; and the method of use includes:

[0027] Two tracks are vertically installed on the outside of the main building structure, spanning the floor slab from the ground to the roof. A lifting mechanism, unloading platform, cleaning mechanism, and first anti-fall mechanism are installed. The wheeled unloading platform of the unloading platform is locked to the outer frame by a locking pin assembly. A second anti-fall mechanism is installed between the roof of the building and the unloading platform. A material receiving mechanism is installed on the target floor slab.

[0028] Building materials are loaded onto the wheeled unloading platform using a tower crane. A load cell weighs the materials on the platform, and a controller in the control box determines if the weight exceeds a preset load limit. If the weight does not exceed the limit, the platform is vertically transported to the target floor via a lifting mechanism that moves along the track. An automatic telescopic boom extends to insert a safety locking pin into a corresponding safety lock hole on the side of the track, locking the platform through the first anti-fall mechanism and forming the first layer of safety protection. During the lifting process, a safety winch coordinates with the hoisting slings... The unloading platform is hoisted using a retractable cable system, providing a second layer of safety protection through a second anti-fall mechanism. During the lifting and lowering of the unloading platform, the cleaning mechanism rises and falls synchronously along the track. The cleaning mechanism's roller brush rotates relative to the shaft and contacts the track, thus automatically cleaning the track along its length during the lifting and lowering process. At the target floor, the wheeled unloading platform is unlocked from the outer frame by pulling out the locking pin assembly. At the target floor, the pull ring of the receiving mechanism is hooked onto the hook of the wheeled unloading platform. The receiving winch retracts the cable to pull the wheeled unloading platform, thus moving it from inside the outer frame along the guide rail to the target floor via the wheels.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] The self-climbing unloading platform and its usage method provided by this invention use a lifting mechanism to drive the unloading platform to move up and down along a track, thereby raising and lowering the unloading platform to the target floor. During the lifting and lowering process of the unloading platform, the cleaning mechanism moves up and down along the track simultaneously. The roller brush of the cleaning mechanism rotates and rolls relative to the shaft, making contact with the track, thereby cleaning the track along its length during the lifting and lowering process. This automatically removes accumulated dust, gravel, slurry and other attachments from the track, preventing the attachments from sticking to the track. This avoids the lifting resistance caused by the attachments on the track, prevents jamming caused by the attachments during the lifting and lowering process, and avoids the problem of wear and tear on the track and lifting mechanism caused by the attachments pressing on them during the lifting and lowering process. This improves the service life of the track and lifting mechanism, and ensures the smoothness and safety of the lifting mechanism driving the unloading platform to move up and down along the track. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main structure of the self-climbing unloading platform;

[0032] Figure 2 This is a top view of the self-climbing unloading platform at a certain floor slab.

[0033] Figure 3 This is a right-side structural schematic diagram of the unloading platform and its connected lifting mechanism and first anti-fall mechanism;

[0034] Figure 4 This is a schematic diagram of the planar structure of the lifting mechanism and the track node;

[0035] Figure 5 It is a three-dimensional structural diagram of the track;

[0036] Figure 6 This is a schematic diagram of the planar structure of the first fall protection mechanism;

[0037] As shown in the figure:

[0038] 1. Track; 101. Track groove; 102. Gear rail; 103. Side wing; 104. Safety lock hole; 105. Wheel groove;

[0039] 2. Lifting mechanism, 201. Lifting seat, 201-1. Mounting hole, 201-2. Side mounting slot, 201-3. Front mounting slot, 202. Drive motor, 203. Drive shaft, 204. Drive bevel gear, 205. Driven bevel gear, 206. Driven shaft, 207. Spur gear, 208. Guide wheel;

[0040] 3. Unloading platform, 301. Outer frame, 302. Wheeled unloading platform, 303. Wheel, 304. Locking pin assembly, 305. Hook, 306. Weighing sensor, 307. Control box;

[0041] 4. Cleaning mechanism, 401. Shaft, 402. Roller brush.

[0042] 5. First-line fall protection mechanism: 501. Automatic telescopic pole; 502. Truss; 503. Safety rod.

[0043] 6. Second fall protection mechanism: 601. Safety winch; 602. Slings;

[0044] 7. Receiving mechanism; 701. Receiving winch; 702. Cable; 703. Tie rod; 704. Pull ring; 705. Guide rail;

[0045] 8. Main building structure, 801. Frame columns, 802. Floor slabs. Detailed Implementation

[0046] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0047] Please refer to Figures 1 to 6 This invention provides a self-climbing unloading platform, comprising a track 1, a lifting mechanism 2, an unloading platform 3, and a cleaning mechanism 4, wherein:

[0048] Track 1 consists of two parallel, spaced-apart tracks, which are vertically installed on the outside of the main building structure 8 across the floor slab 802.

[0049] The lifting mechanism 2 consists of two sets symmetrically arranged on the two tracks 1, with the two sets of lifting mechanisms 2 moving up and down synchronously on the two tracks 1.

[0050] The unloading platform 3 is horizontally positioned on the outside of the track 1 and on the two sets of lifting mechanisms 2. The unloading platform 3 can be a nested movable structure, including an outer frame 301 and a wheeled unloading platform 302 inside it. The outer frame 301 is horizontally positioned on the two sets of lifting mechanisms 2. The wheeled unloading platform 302 is movable within the outer frame 301 by wheels 303 located below it.

[0051] To prevent displacement of the wheeled unloading platform 302 within the outer frame 301 during the loading of building materials or the lifting and lowering of the unloading platform 3 along the track 1, the unloading platform 3 may further include a locking pin assembly 304, comprising two parallel, spaced-apart vertical locking pins and a locking rod connecting them at the same end. One vertical locking pin is inserted into a locking pin hole at the top edge of the outer frame 301, and the other vertical locking pin is inserted into a locking pin hole at the top edge of the wheeled unloading platform 302. One of the vertical locking pins is rotatably installed in the corresponding locking pin hole of the outer frame 301 or the wheeled unloading platform 302 to avoid the safety risk of falling if both are pulled out. The locking pin assembly 304 can be U-shaped or π-shaped. The two vertical locking pins are of unequal length, allowing the longer vertical locking pin to be rotatably connected in the corresponding position. The locking pin assembly 302 may also consist of a set of rotating blades and two sets of vertical locking pins.

[0052] To monitor whether the building materials loaded on the unloading platform 3 are overloaded, the unloading platform 3 may further include a weighing sensor 306 and a control box 307. The weighing sensor 306 consists of multiple sensors evenly distributed on the bottom plate of the wheeled unloading platform 302. The wheeled unloading platform 302 has an open box structure. The control box 307 contains a controller, and the weighing sensors 306 are connected to the controller. The control box 307 may be mounted on the wheeled unloading platform 302. The weighing sensor 306 can adopt a high-sensitivity thin-film strain gauge structure, which is fixed to the bottom plate of the wheeled unloading platform 303 by bolts or embedded in the bottom plate of the wheeled unloading platform 303. It is used to collect the weight data of the building materials loaded on the wheeled unloading platform 303 in real time. The controller compares the weight signal collected by the weighing sensor 306 with its preset load limit threshold to determine whether the current weight is overloaded. If overloaded, the controller will issue an audible and visual alarm signal and prohibit lifting operations. This can avoid the safety risk of the self-climbing unloading platform 3 falling from a height due to overload, and reduce the probability of a fall from a height accident. The use of multiple weighing sensors 306 can distribute the load at multiple points, which is convenient for detecting unbalanced or concentrated loads and provides real-time reference for operators to adjust the stacking position of building materials.

[0053] The cleaning mechanism 4 includes shafts 401 located at the bottom of the lifting mechanism 2 or the unloading platform 3, and roller brushes 402 rotatably mounted on each shaft 401, the roller brushes 402 contacting the track 1. The roller brushes 402 may be made of, but are not limited to, nylon material. To improve the cleaning ability of the roller brushes 402, stiff bristles may be used. The shafts 401 may be mounted on the lifting mechanism 2 or the unloading platform 3 via vertical members or other indirect means.

[0054] The self-climbing unloading platform 3 provided in this embodiment of the invention is driven by the lifting mechanism 2 to move up and down along the track 1, thereby raising and lowering the unloading platform 3 to the target floor. During the raising and lowering of the unloading platform 3, the cleaning mechanism 4 moves up and down along the track 1 simultaneously. The roller brush 402 of the cleaning mechanism 4 rotates and rolls relative to the shaft 401, contacting the track 1, thereby cleaning the track 1 along its length during the raising and lowering process. Through the repeated raising and lowering movement of the unloading platform 3, the cleaning mechanism 4 can repeatedly and continuously clean the track 1, thereby automatically cleaning the dust, gravel, slurry, colloid and other attachments accumulated on the track, avoiding the attachments from sticking to the track 1, avoiding the lifting resistance caused by the attachments on the track 1, avoiding jamming caused by the attachments during the raising and lowering process, and avoiding the problem of wear and tear on the track 1 and the lifting mechanism 2 caused by the lifting mechanism 2 pressing on the attachments during the raising and lowering process, thus improving the service life of the track 1 and the lifting mechanism 2, and ensuring the smoothness and safety of the raising mechanism 2 driving the unloading platform 3 to move up and down along the track 1.

[0055] Please refer to Figures 1 to 5 To ensure reliable lifting and lowering of the lifting mechanism 2 along the track 1, the self-climbing unloading platform provided in this embodiment of the invention features a lateral rack and toothed rail lifting structure for the lifting mechanism 2 and the track 1. Each track 1 has a continuous rail groove 101 symmetrically arranged on both sides along its length, with a toothed rail 102 at the bottom of the groove. The rail groove 101 can be fabricated by cutting on the track 1 or by installing channel steel on the track 1. The toothed rail 102 can be fabricated at the bottom of the rail groove 101 or by installing an independent toothed rail 102. The track 1 can be made of I-beams with high cross-sectional strength and strong deformation resistance. The slots distributed on both sides of the web between the upper and lower flanges of the I-beam serve as the rail grooves 101, requiring only fabrication or installation of the toothed rail 102, thus improving manufacturing efficiency. The I-beam has a web and upper and lower flanges. The width of the upper flange is smaller than the width of the lower flange, and the lower flange serves as the bottom surface installed on the main building structure 8, specifically at the end face of the floor slab 802. However, the lifting mechanism 2 and the track 1 are not limited to the lateral rack and pinion lifting structure; they can also be a front rack and pinion lifting structure. Each set of lifting mechanisms 2 includes a lifting seat 201 and a drive motor 202 installed inside the lifting seat 201. The lifting seat 201 and / or the drive motor 202 are connected to the unloading platform 3. The lifting seat 201 and the drive motor 202 can be specifically connected to the lower end face of the outer frame 301. The output shaft of the drive motor 202 passes through the lifting seat 201 and is connected to a drive shaft 203. A drive bevel gear 204 is installed at each of the front and rear ends of the drive shaft 203. The lifting seat 201 is provided with mounting holes 201-1 at the drive bevel gears 204. Each of the driving bevel gears 204 is meshed with a driven bevel gear 205. Each driven bevel gear 205 is mounted on a driven shaft 206. The driven shaft 206 is rotatably connected to the lifting seat 201 perpendicular to the driving shaft 203. A spur gear 207 is mounted on the other end of each driven shaft 206. The lifting seat 201 is provided with a lateral mounting groove 201-2 at the corresponding spur gear 207 and driven shaft 206. The spur gear 207 is meshed with a gear rail 102 in the rail groove 101 of the track 1 on its corresponding side. The spur gear 207 and the gear rail 102 form a gear and rack transmission structure.

[0056] The lifting mechanism 2 operates relative to the track 1 using the following principle: The lifting mechanism 2 employs two symmetrically arranged drive motors 202 as power sources. Simultaneous start and stop are achieved through synchronous control signals. When the two drive motors 202 rotate, their respective output shafts drive the drive shaft 203 and its drive bevel gear 204 to rotate synchronously. The gear transmission between the drive bevel gear 204 and the driven bevel gear 205 converts torque into bidirectional output. This output, through the driven shaft 206 connected to the driven gear 205 and the spur gear 207, drives the spur gear 505 to rotate on the gear rail 102, thereby causing the lifting seat 1, drive motor 202, and unloading platform 3 to move up and down on the track 1. The double-sided bevel gear structure of the drive bevel gear 204 and driven bevel gear 205 provides advantages such as structural symmetry and balanced force distribution, making it less prone to swaying or instability during operation. This significantly improves lifting accuracy and load capacity, resulting in better performance in the vertical transportation of building materials in multi-story, staggered operations. The unloading platform 3 uses two sets of lifting mechanisms 2 as power sources to connect its respective tracks 1 to the toothed rails 102 in the grooves 101 on both sides of the track 1 via two sets of spur gears 505. Compared with the traditional track 1 which uses a forward single toothed rail meshing connection, it has the advantages of stable structure and safety and reliability.

[0057] At this time, during the lifting process of the lifting mechanism 2 relative to the track 1, the roller brush 402 rotates relative to the track 1, thereby automatically cleaning the rail grooves 101 and the toothed rails 102 on both sides of the track 1. This can effectively remove dust, gravel and other impurities accumulated on the toothed rails 102, ensuring the cleanliness of the rail grooves 101 and the toothed rails 102 of the track 1, and reducing the meshing loss between the spur gear 207 and the toothed rails 102.

[0058] Please refer to this carefully. Figure 4 and Figure 2 To ensure the reliability of the lifting mechanism 2's vertical movement along the track 1, the self-climbing unloading platform provided in this embodiment of the invention may further include:

[0059] The guide assembly includes a wheel groove 105 extending along the front of each of the tracks 1; it also includes a guide wheel 208 mounted on the lifting seat 201 at the wheel groove 105 aligned with the track 1 on its corresponding side. The lifting seat 201 corresponding to the guide wheel 208 has a forward mounting groove 201-3, and the guide wheel 208 is rotatably mounted within the wheel groove 105 of the track 1. At this time, the guide wheel 208 rolls within the wheel groove 105. The forward mounting groove 201-3 can be a stepped groove to maximize the area of ​​the lifting seat 201 and improve its structural strength.

[0060] The guiding component works as follows: During the lifting mechanism 2's ascent and descent along the track 1, the guide wheel 208, attached to the lifting seat 201, rises and falls accordingly. The guide wheel 208 rolls within the wheel groove 105 of the track 1, providing guidance and rolling support, thus ensuring stable lifting and descent of the lifting mechanism 2 along the track frame 1. Furthermore, the guide wheel 208 can be made of silent rubber, possessing good elasticity and wear resistance. Its rolling motion within the wheel groove 105 provides cushioning, reducing structural impact and acting as a shock absorber. The guide wheel 208, rolling within the wheel groove 105 of the track 1, also limits the movement of the spur gear 207 within the track groove 101, preventing displacement between the spur gear 207 and the gear rail 102, and ensuring the reliability of the meshing connection between the spur gear 207 and the gear rail 102.

[0061] Please refer to Figure 1 , Figure 5 and Figure 6 To prevent the unloading platform 3 from falling, the self-climbing unloading platform provided in this embodiment of the invention may further include:

[0062] The first anti-fall mechanism 5 includes an automatic telescopic rod 501 located at the bottom of both sides of the width direction of each set of lifting mechanisms 2 or unloading platform 3. The automatic telescopic rod 501 is connected to multiple safety rods 503 through a truss 502. The safety rods 503 serve as shafts 401. At this time, a roller brush 402 is rotatably installed on each safety rod 503, and the end of the safety rod 503 extends out of the roller brush 402. It also includes side wings 103 extending to both sides of the bottom of each track 1, and multiple safety locking holes 104 evenly arranged along the length direction of the side wings 103. When the automatic telescopic rod 501 is in the extended state, the end of the safety rod 503 is inserted into the corresponding safety locking hole 104 on the side wings 103 installed on both sides of the track 1 through the truss 502. When the automatic telescopic rod 501 is in the retracted state, the safety rod 503 is pulled out from the corresponding safety locking hole 104. The automatic telescopic rod 501 includes, but is not limited to, cylinders, hydraulic cylinders, or electric telescopic rods. Figure 6 The example shows two safety rods 503, but it can also have four safety rods 503. In this case, the first fall protection mechanism 5 and the cleaning mechanism 4 form an integrated cleaning and fall protection structure, eliminating the need for separate cleaning and locking mechanisms. The structure is lightweight and compact, effectively reducing the platform load, improving the smoothness of lifting operation and overall safety, and also has the advantage of low cost.

[0063] When the lifting mechanism 2 drives the unloading platform 3 to move up and down along the track 1 to the target floor, the automatic telescopic rod 501 is extended, and the truss 502 and safety rod 503 extend synchronously, entering the corresponding safety lock holes 104 on the side wings 103 on both sides of the track 1. This locks the lifting mechanism 2 and the unloading platform 3, providing both forced locking and fall protection. The structure is simple and requires no complicated devices. It can complete cleaning and locking simultaneously with lifting, reducing the overall load and improving operational safety. When the unloading platform 3 needs to be lifted again, the automatic telescopic rod 501 is retracted to unlock the lifting mechanism 2 and the unloading platform 3. Since the safety rod 503 is located below the lifting seat 201, its extension and retraction do not interfere with the lifting movement of the unloading platform 3.

[0064] Please refer to Figure 1 To prevent the unloading platform 3 from falling during the lifting process, the self-climbing unloading platform provided in this embodiment of the invention may further include:

[0065] The second fall protection mechanism 6 includes a safety winch 601 fixedly installed on the roof of the main building structure 8. The safety winch 601 is obliquely connected to the unloading platform 3 via a hoisting cable 602 wound on it. The hoisting cable 602 can be specifically connected to the outer frame 301 of the unloading platform 3 at the end away from the main building structure 8.

[0066] The fall prevention principle of the second fall prevention mechanism 6 is as follows: while the lifting mechanism 2 drives the unloading platform 3 to rise and fall along the track 1 and stop at the target floor support, the safety winch 601 controls the coordinated winding and unwinding of the sling 602 to achieve overall limit protection and safe traction for the unloading platform 3. When the unloading platform 3 rises, the sling 602 winds up; when the unloading platform 3 falls, the sling 602 unwinds, but the sling 602 is always kept taut to tilt and suspend the unloading platform 3, thereby protecting the unloading platform 3 during the lifting process and preventing the unloading platform 3 from falling. The safety winch 601 in the second anti-fall mechanism 6 and the drive motor 202 in the lifting mechanism 2 can establish speed matching and be set to a fixed ratio linkage state. During the lifting and lowering of the unloading platform 3, the sling 602 is kept at an appropriate tension. It is neither too tight, which will affect the lifting power of the unloading platform 3, nor too loose, which will cause the sling 602 to swing or fail. Specifically, the safety winch 601 is set to servo control mode, which receives speed commands or position feedback signals from the drive motor 502 in real time, ensuring that the following state of the sling 602 is consistent with the lifting command and has a certain adaptive safety adjustment capability.

[0067] Please refer to Figures 1 to 2To reduce the handling risks associated with unloading goods on the unloading platform 3 outside the main building structure 8, the self-climbing unloading platform provided in this embodiment of the invention may further include:

[0068] The material receiving mechanism 7 includes a material receiving winch 701 aligned with the unloading platform 3 and installed on each floor slab 802. The material receiving winch 701 is connected to a pull rod 703 via a cable 702 wound on it. The pull rod 703 is provided with two pull rings 704, which are hooked to hooks 305 provided on the wheeled unloading platform 302. It also includes two guide rails 705 symmetrically laid on each floor slab 802 and aligned with the wheels 303 of the wheeled unloading platform 302. When the wheeled unloading platform 302 moves into the floor, it travels on the guide rails 705 via its wheels 303. That is, the guide rails 705 serve as the tracks for the wheels 303 of the wheeled unloading platform 302 to travel, preventing the wheeled unloading platform 302 from directly contacting the floor slab 802 under heavy load and causing damage to the floor slab 802, i.e., avoiding crushing the floor slab 802. The positions of hook 305 and pull ring 704 can be interchanged. Pull rod 703 can slide on the inner side of guide rail 705, while wheel 303 travels on the outer side of guide rail 705 without interference. When the take-up winch 701 takes up the line via cable 702, the pull rod 703 slides on guide rail 705 to prevent free swaying and affecting the traction of wheeled unloading platform 302. When wheeled unloading platform 302 moves within the floor and into the outer frame 301 of unloading platform 3, the take-up winch 701 needs to be controlled to release the line from cable 702. The return of pull rod 703 can be manually assisted by sliding it. Before returning to its original position, i.e., at the end closest to the take-up winch 701, the hook 704 needs to be released from hook 305. The material receiving mechanism 7 enables the wheeled unloading platform 302 to be automatically and quickly moved into the target floor under heavy load, without the need for manual pulling, avoiding jamming or stagnation caused by insufficient manual pushing and pulling force. It is convenient to operate, saves time and effort, reduces the intensity of operation, and improves the moving efficiency of the wheeled unloading platform 302.

[0069] This invention also provides a method for using a self-climbing unloading platform 3, which consists of a track 1, a lifting mechanism 2, an unloading platform 3, a cleaning mechanism 4, a first anti-fall mechanism 5, a second anti-fall mechanism 6, and a receiving mechanism 7, including:

[0070] Equipment installation: Two rails 1 are vertically installed on the outside of the main building structure 8, spanning the floor slabs 802 from the ground to the roof. A lifting mechanism 2, a unloading platform 3, a cleaning mechanism 4, and a first anti-fall mechanism 5 are installed. The wheeled unloading platform 302 of the unloading platform 3 is locked to the outer frame 301 by a locking pin assembly 304. A second anti-fall mechanism 6 is installed between the roof of the building and the unloading platform 3. A receiving mechanism 7 is installed on the target floor slab 802.

[0071] Equipment Control: Building materials are loaded onto the wheeled unloading platform 302 of the unloading platform 3 by a tower crane. A weighing sensor 306 weighs the materials on the wheeled unloading platform 302, and a controller in the control box 307 determines whether the weight detected by the weighing sensor 306 exceeds a preset load limit. If the weight of the wheeled unloading platform 302 does not exceed the load limit, the lifting mechanism 2 moves vertically along the track 1 to transport the unloading platform 3 to the target floor. The automatic telescopic rod 501 is extended to insert the safety rod 503 into the safety lock hole 104 located at the corresponding position on the side wing 103 of the track 1, thus locking the unloading platform 3 through the first anti-fall mechanism 5, forming the first layer of safety protection. During the lifting and lowering process of the unloading platform 3, the safety winch 601 coordinates the raising and lowering of the sling 602. The line maintains the hoisting of the unloading platform, forming a second layer of safety protection by hoisting the unloading platform through the second anti-fall mechanism 6; during the lifting and lowering of the unloading platform 3, the cleaning mechanism 4 lifts and lowers synchronously along the track 1 with the unloading platform 3, and the roller brush of the cleaning mechanism 4 rotates relative to the shaft 401 and contacts the track 1, thereby automatically cleaning the track 1 along the length direction during the lifting and lowering process; at the target floor, the wheel unloading platform 302 of the unloading platform 3 is unlocked from the outer frame 301 by pulling out the locking pin assembly 304, and at the target floor, the pull ring 704 of the receiving mechanism 7 is hooked onto the hook 305 of the wheel unloading platform 302, and the receiving winch 701 pulls the cable 702 to pull the wheel unloading platform 302, so that the wheel unloading platform 302 is pulled from the outer frame 301 along the guide rail 705 to the target floor by the wheels 303.

[0072] The self-climbing unloading platform 3 provided in this embodiment of the invention can use the controller in the control box 307 as the main controller to coordinate and send control commands to the drive motor 202 of the lifting mechanism 2, the safety winch 601, and the automatic telescopic rod 50 according to a predetermined strategy. The start and stop of the receiving winch 701 are controlled independently.

[0073] The self-climbing unloading platform 3 and its usage method provided in this embodiment of the invention are particularly suitable for the vertical transportation of building materials in high-rise or super high-rise buildings. Compared with traditional cantilever unloading platforms, the lifting mechanism 2 is raised and lowered relative to the track 1 and then engaged with the gear and rack structure at the target floor position. The locking relationship of the first anti-fall mechanism 5 and the suspension relationship of the second anti-fall mechanism 6 ensure the stability of the unloading platform 3 after being raised and lowered. It has the advantages of high safety, convenient vertical transportation of building materials, no limitation to a designated target floor, and the ability to stop at any target floor, reducing the probability of falling from a height.

[0074] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A self-climbing unloading platform, characterized in that, include: The track consists of two parallel, spaced-apart rails, used to span the floor slabs and vertically installed on the outside of the main building structure; The lifting mechanism consists of two sets symmetrically arranged on the two tracks, with the two sets of lifting mechanisms moving up and down synchronously on the two tracks; The unloading platform is located horizontally on the two sets of lifting mechanisms outside the track; The cleaning mechanism includes shafts located at the bottom of the lifting mechanism or unloading platform, and roller brushes rotatably mounted on each shaft, the roller brushes contacting the track.

2. The self-climbing unloading platform according to claim 1, characterized in that, Each track has a continuous track groove and a toothed rail at the bottom of the groove symmetrically arranged on both sides along its length; each lifting mechanism includes a lifting seat, a drive motor installed inside the lifting seat, the lifting seat and / or the drive motor connected to the unloading platform, the output shaft of the drive motor passing through the lifting seat and connected to a drive shaft, a drive bevel gear installed at each end of the drive shaft, each drive bevel gear meshing with a driven bevel gear, each driven bevel gear being mounted on a driven shaft, the driven shaft being rotatably connected to the lifting seat perpendicular to the drive shaft, and a spur gear installed at the other end of each driven shaft, the spur gear meshing with the toothed rail in the track groove on the corresponding side.

3. The self-climbing unloading platform according to claim 2, characterized in that, The lifting mechanism also includes: The guide assembly includes a wheel groove extending along the front of each of the tracks; it also includes a guide wheel mounted on the lifting seat at the wheel groove of the track on the corresponding side, the guide wheel being rotatably mounted within the track wheel groove.

4. The self-climbing unloading platform according to claim 2, characterized in that, Also includes: The first anti-fall mechanism includes an automatic telescopic rod installed at the bottom of both sides of the width direction of each set of lifting mechanisms or unloading platforms. The automatic telescopic rod is connected to multiple safety rods through a truss. The safety rods serve as axles, and their ends extend out of the roller brush. It also includes multiple safety locking holes evenly arranged along the length direction of the side wings, with side wings extending to both sides of the bottom of each track. When the automatic telescopic rod is in the extended state, the truss drives the ends of the safety rods to insert into the corresponding safety locking holes installed on the side wings on both sides of the track. When the automatic telescopic rod is in the retracted state, the safety rods are pulled out from the corresponding safety locking holes.

5. The self-climbing unloading platform according to claim 1, characterized in that, The unloading platform includes: The outer frame is horizontally mounted on the two sets of lifting mechanisms; The wheeled unloading platform is mounted inside the outer frame by means of wheels located underneath it.

6. The self-climbing unloading platform according to claim 5, characterized in that, The unloading platform also includes: The locking pin assembly includes two parallel and spaced vertical locking pins and a locking rod connected at the same end between them. One of the vertical locking pins is inserted into a locking pin hole provided at the top edge of the outer frame, and the other vertical locking pin is inserted into a locking pin hole provided at the top edge of the wheeled unloading platform. One of the vertical locking pins is rotatably installed in the locking pin hole of the corresponding outer frame or wheeled unloading platform.

7. The self-climbing unloading platform according to claim 5, characterized in that, The unloading platform also includes: The weighing sensors are multiple sensors that are evenly distributed on the bottom plate of the wheel-type unloading platform. A control box is installed on the wheeled unloading platform, and a controller is installed inside it.

8. The self-climbing unloading platform according to claim 5, characterized in that, Also includes: The second fall protection mechanism includes a safety winch fixedly installed on the roof of the main building structure. The safety winch is obliquely connected to the outer frame of the unloading platform via a sling wound on it.

9. The self-climbing unloading platform according to claim 5, characterized in that, Also includes: The material receiving mechanism includes a material receiving winch aligned with each floor slab at the unloading platform. The material receiving winch is connected to a pull rod via a cable wound on it. The pull rod is provided with two pull rings, which are hooked to hooks on the wheeled unloading platform. The mechanism also includes two guide rails symmetrically laid on each floor slab and aligned with the wheels of the wheeled unloading platform. When the wheeled unloading platform moves into the floor, it travels on the guide rails via its wheels.

10. A method of using a self-climbing unloading platform, characterized in that, The self-climbing unloading platform includes a track, a lifting mechanism, an unloading platform, a cleaning mechanism, a first fall protection mechanism, a second fall protection mechanism, and a material collection mechanism. The unloading platform includes an outer frame, a wheeled unloading platform, and a locking pin assembly. The method of use includes: Two tracks are vertically installed on the outside of the main building structure, spanning the floor slab from the ground to the roof. A lifting mechanism, unloading platform, cleaning mechanism, and first anti-fall mechanism are installed. The wheeled unloading platform of the unloading platform is locked to the outer frame by a locking pin assembly. A second anti-fall mechanism is installed between the roof of the building and the unloading platform. A material receiving mechanism is installed on the target floor slab. Building materials are loaded onto the wheeled unloading platform using a tower crane. A load cell weighs the materials on the platform, and a controller in the control box determines if the weight exceeds a preset load limit. If the weight does not exceed the limit, the platform is vertically transported to the target floor via a lifting mechanism that moves along the track. An automatic telescopic boom extends to insert a safety locking pin into a corresponding safety lock hole on the side of the track, locking the platform through the first anti-fall mechanism and forming the first layer of safety protection. During the lifting process, a safety winch coordinates with the hoisting slings... The unloading platform is hoisted using a retractable cable system, providing a second layer of safety protection through a second anti-fall mechanism. During the lifting and lowering of the unloading platform, the cleaning mechanism rises and falls synchronously along the track. The cleaning mechanism's roller brush rotates relative to the shaft and contacts the track, thus automatically cleaning the track along its length during the lifting and lowering process. At the target floor, the wheeled unloading platform is unlocked from the outer frame by pulling out the locking pin assembly. At the target floor, the pull ring of the receiving mechanism is hooked onto the hook of the wheeled unloading platform. The receiving winch retracts the cable to pull the wheeled unloading platform, thus moving it from inside the outer frame along the guide rail to the target floor via the wheels.

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