Intelligent lifting device capable of achieving short-distance hanging basket operation

Abstract

The invention provides an intelligent lifting device capable of carrying out short-distance hanging basket operation, and belongs to the technical field of building construction appliances, the intelligent lifting device comprises a cantilever mechanism frame, a guide rail platform and a suspension platform, and the suspension platform is provided with a buffer device and a control device; the cantilever mechanism frame comprises a main beam, a hollow structure extending out of the building component is arranged at the front end of the main beam, and a guide rail platform is connected to the lower portion of the hollow structure; a steel wire rope and a tension sensor are arranged on the cantilever mechanism frame; the guide rail platform comprises a sliding guide rail U-shaped groove, a first guide rail and a second guide rail, the first guide rail and the second guide rail are in meshing transmission through respective gears, and the rack directions of the gears of the first guide rail and the second guide rail are opposite; a horizontal sensor is arranged on the U-shaped groove of the sliding guide rail; the suspension platform comprises an elevator, a buffer device and a control device, and a distance sensor is arranged at the lower part of the suspension platform; the overhanging platform has the characteristics that the overhanging mechanism frame can be intelligently adjusted, the overhanging platform is stable, and operators are safe.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to an intelligent lifting device that allows for close-range suspended platform operation. Background Technology

[0002] Suspended platforms are common construction tools used for high-altitude operations in building engineering, typically for curtain wall construction, exterior wall construction and cleaning, and exterior wall insulation. The cantilevered frame is installed at the top of the building, and the suspended platform moves up and down along steel cables using a hoist. During use, suspended platforms are often constrained by the building structure and design flaws, leading to inconveniences and safety hazards for workers.

[0003] The existing technology has the following problems: 1. Structures often have external drainage ditches, eaves, etc., which can prevent the suspended platform from reaching the work area when erecting a suspended platform frame. The usual solution is to drill holes in the structure and pass steel wire ropes through them. However, after prolonged use, this can easily cause irreversible damage to the steel wire ropes. At best, the steel wire ropes cannot be reused; at worst, it can lead to the destruction of the machine and loss of life.

[0004] 2. People walking on the suspended platform, installation work, or windy weather can all cause the suspended platform to sway. The swaying of the platform can damage the construction structure or cause the workers to lose their center of gravity, which in turn can lead to economic losses and safety problems.

[0005] 3. The platform descent speed control device is manually controlled by the hoist, which is prone to malfunction and requires additional safety measures.

[0006] 4. The traditional suspended platform cantilever mechanism cannot control the height adjustment and the descent speed of the suspended platform, which will affect the construction progress during installation and adjustment. A more intelligent control box and structure are needed. Summary of the Invention

[0007] Purpose of the invention: The purpose of this invention is to address the shortcomings of existing technologies by providing an intelligent lifting device for close-range suspended platform operations, featuring intelligent adjustment of the cantilever frame, stability of the suspended platform, and safety for operators.

[0008] Technical solution: The present invention provides an intelligent lifting device for close-range suspended platform operation, comprising a cantilever frame erected above a building component, a guide rail platform extending downward from one end of the cantilever frame extending from the building component, a suspended platform connected below the guide rail platform, and a buffer device and a control device installed on the suspended platform, the control device controlling the start, stop and lifting operations of the lifting device. The cantilever frame includes a main beam, which is supported on the building component by a front support frame and a rear support frame. The front end of the main beam has a perforated structure extending out of the building component. Below the perforated structure, a guide rail platform is connected via two parallel hydraulic jacks. A steel wire rope with a tension sensor is installed on the cantilever frame. The guide rail platform includes a U-shaped sliding guide rail connected to the hydraulic jacks. The bottom of the U-shaped sliding guide rail is fixedly connected to the sliding guide rail. The sliding guide rail includes a first guide rail and a second guide rail, which are driven by their respective meshing gears. The racks of the first and second guide rail gears are in opposite directions, and a drive motor is integrated inside the gears. The drive motor is externally powered. A level sensor is located at the center of the upper part of the U-shaped sliding guide rail. The suspended platform includes a hoist connected to the guide rail platform, a buffer device located on the side of the suspended platform closer to the building component, and a control device located on the upper part of the suspended platform. A distance sensor is located at the lower part of the suspended platform.

[0009] The guide rail platform has a first guide rail-gear-first guide rail-gear-U" groove structure. This is a double guide rail structure, which increases the horizontal movement distance. A level sensor is installed on the first guide rail to check its levelness. A motor is installed inside the gear to control the left and right movement of the platform connected to the gear. The gear is driven by the built-in motor and meshes with the racks of the first and second guide rails. Because the racks of the two guide rails are in opposite directions, when the gear rotates, guide rail 1 / 2 moves synchronously in the opposite direction. The first guide rail moves left by L, and the second guide rail 2 moves right by L, thus increasing the relative displacement of the suspended platform to 2L. The main beam is anchored to the building structure through front and rear support frames. The double hydraulic jacks under the hollow structure at its front end are hinged to the sliding guide rail U-groove, forming an adjustable tilt angle suspension fulcrum. The level sensor monitors the tilt angle of the guide rail platform in real time, and the data is fed back to the control device to drive the differential extension and retraction of the double hydraulic jacks (e.g., left rise and right fall), realizing dynamic leveling of the guide rail.

[0010] Furthermore, an upper support frame is installed above the main beam, and an upper support frame pulley is installed at the top of the upper support frame. One end of the steel wire rope is connected to the rear end of the main beam, the middle of the steel wire rope is connected to the support frame pulley, and the other end of the steel wire rope is connected to the main beam pulley on the hollow structure. When the hydraulic jack of the upper support frame rises, the steel wire rope is tensioned, at which time the main beam generates upward arching prestress, which can counteract the downward deflection deformation under load.

[0011] Furthermore, the main beam, upper support frame, front support frame, and rear support frame use hydraulic jacks of different specifications, with the main beam hydraulic jack being larger than the others. The front support frame is fixed to the building components using high-strength screws, while the rear support frame is fixed to the building components using counterweights.

[0012] Furthermore, the hollow structure has a front hole, a middle hole, and a rear hole in the horizontal direction. The front hole and the rear hole are respectively connected to hydraulic jacks, and the main beam pulley is installed on the middle hole.

[0013] Furthermore, the buffer device consists of screws, rubber, springs, and nuts; the screws pass through the rubber and springs in sequence and are fixed to the side of the suspended platform, forming a multi-stage shock absorption system. When the platform is impacted near the building, the impact force is absorbed by the screws through plastic deformation of the rubber to absorb high-frequency vibrations, by the elastic deformation of the springs to dissipate energy, and by the locking mechanism of the nuts.

[0014] Furthermore, the control device dynamically adjusts the stroke of the hydraulic jacks on the suspended platform based on data from the horizontal sensor, automatically adjusts the height of the hydraulic jacks on the upper support frame based on the wire rope tension value fed back by the tension sensor, and adjusts the height of the suspended platform above the ground based on the distance between the platform and the working surface detected by the distance sensor.

[0015] Furthermore, the wire rope is equipped with at least three rope clamps, with the U-shaped openings of the clamps facing the opposite side of the wire rope's tail end. The wire rope between each pair of adjacent clamps is arched, and the nut of the clamp is tightened to 1 / 2 to 1 / 3 of the wire rope's diameter. The rope clamps can form multiple locking mechanisms; the reversed U-shaped openings prevent stress concentration; the arched shape of the wire rope allows for deformation allowance; and the tightened nut ensures frictional locking.

[0016] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows: (1) In this invention, the double hydraulic jack suspension system at the front end of the main beam is linked with the double guide rail gear multiplier mechanism. The hydraulic jack adjusts the tilt angle of the guide rail platform to adapt to irregular building surfaces such as eaves / ditches. At the same time, the gear drives the double guide rail to move in the opposite direction, which multiplies the horizontal movement of the platform. This invention can be used to work directly within 0.3m of the building facade, eliminating the risk of wire rope damage caused by drilling and rope threading. At the same time, it improves construction efficiency and is particularly suitable for curtain wall installation, cleaning of irregular structures and other scenarios. (2) The present invention achieves real-time leveling of the platform through a level sensor and a hydraulic jack. The composite energy-absorbing structure of the buffer device can attenuate the impact energy, while the distance sensor can force braking, thus solving the risk of falling caused by platform shaking. (3) The present invention can automatically adjust the hydraulic cylinder of the upper support frame according to the tension sensor to maintain the rigidity of the main beam. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the guide rail platform in this invention; Figure 3 This is a schematic diagram of the structure of the suspension platform in this invention; In the diagram: 1-1 Main beam; 1-2 Upper support frame; 1-3 Front support frame; 1-4 Rear support frame; 1-5 Hollow structure; 1-6 Front hole; 1-7 Middle hole; 1-8 Rear hole; 1-9 Main beam pulley; 1-10 Hydraulic jack; 1-11 High-strength screw; 1-12 Counterweight; 1-13 Tension sensor; 1-14 Steel wire rope; 1-15 Upper support frame pulley; 2-1 Sliding guide rail "U" groove; 2-2 First guide rail; 2-3 Second guide rail; 2-4 Gear; 2-5 Horizontal sensor; 3-1 Suspension platform; 3-2 Hoist; 3-3 Control device; 3-4 Screw; 3-5 Rubber; 3-6 Spring; 3-7 Nut; 3-8 Distance sensor. Detailed Implementation

[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0019] like Figure 1 The intelligent lifting device shown includes a cantilever frame erected above a building component. A guide rail platform is provided at the end of the cantilever frame that extends out of the building component. A suspended platform 3-1 is connected below the guide rail platform. A buffer device and a control device are provided on the suspended platform 3-1. The control device controls the start, stop and lifting operations of the lifting device. The cantilever frame includes a main beam 1-1, which is supported on the building component by a front support frame 1-3 and a rear support frame 1-4. The front end of the main beam 1-1 is provided with a hollow structure 1-5 extending out of the building component. The bottom of the hollow structure 1-5 is connected to a guide rail platform by two parallel hydraulic jacks 1-10. A steel wire rope 1-14 is provided on the cantilever frame, and a tension sensor 1-13 is provided on the steel wire rope 1-14. The hollow structure 1-5 has a front hole 1-6, a middle hole 1-7 and a rear hole 1-8 in the transverse direction. The front hole 1-6 and the rear hole 1-8 are respectively connected to the hydraulic jacks 1-10, and the main beam pulley 1-9 is installed on the middle hole 1-7. An upper support frame 1-2 is installed above the main beam 1-1, and an upper support frame pulley 1-15 is installed at the top of the upper support frame 1-2. One end of the wire rope 1-14 is connected to the rear end of the main beam 1-1, the middle of the wire rope 1-14 is connected to the support frame pulley 1-15, and the other end of the wire rope 1-14 is connected to the main beam pulley 1-9 on the hollow structure 1-5. The main beam 1-1, upper support frame 1-2, front support frame 1-3, and rear support frame 1-4 are hydraulic jacks of different specifications. The front support frame 1-3 is fixed to the building components by high-strength screws 1-11, and the rear support frame 1-4 is fixed to the building components by counterweights 1-12. At least three rope clamps are installed on the wire rope 1-14. The U-shaped opening of the rope clamp faces the opposite side of the end of the wire rope. The wire rope between each two adjacent rope clamps is arched, and the nut of the rope clamp is tightened to 1 / 2 to 1 / 3 of the diameter of the wire rope.

[0020] like Figure 2 As shown, the guide rail platform includes a sliding guide rail U-shaped groove 2-1 connected to the hydraulic jack 1-10. The bottom of the sliding guide rail U-shaped groove 2-1 is fixedly connected to the sliding guide rail. The sliding guide rail includes a first guide rail 2-2 and a second guide rail 2-3. The first guide rail 2-2 and the second guide rail 2-3 are driven by a set of gears 2-4. The gears 2-4 have an integrated drive motor, which is connected to an external power source. A level sensor 2-5 is installed at the upper center of the sliding guide rail U-shaped groove 2-1. like Figure 3As shown, the suspended platform 3-1 includes a hoist 3-2 connected to the guide rail platform, a buffer device located on the side of the suspended platform 3-1 near the building component, and a control device 3-3 located on the upper part of the suspended platform 3-1. A distance sensor 3-8 is installed at the lower part of the suspended platform 3-1. The buffer device consists of a screw 3-4, rubber 3-5, spring 3-6, and nut 3-7; the screw 3-4 passes through the rubber 3-5 and spring 3-6 in sequence and is fixed to the side of the suspended platform 3-1, forming a multi-stage shock absorption system. The control device 3-3 dynamically adjusts the stroke of the hydraulic jacks of the suspended platform based on the data from the horizontal sensor 2-5. The control device 3-3 automatically adjusts the height of the hydraulic jacks of the upper support frame 1-2 based on the tension value of the wire rope 1-14 fed back by the tension sensor 1-13. The control device 3-3 adjusts the height of the suspended platform above the ground based on the distance between the platform and the working surface detected by the distance sensor 3-8.

[0021] Workflow: I. Pre-operation preparations: ① Check whether the main beam, support frame, counterweight, and wire rope meet national requirements; ② Check whether the power supply voltage is normal and whether the grounding wire is properly connected; ③ Conduct a pre-operation test of the suspended platform before operation to check whether each structure is operating normally. Operation can proceed only after there are no abnormalities; ④ If the suspended platform malfunctions, stop operation immediately and move it to the bottom floor of the building for repair. Operation can only proceed after the repair is completed; ⑤ Provide professional and systematic training to the operators. Only those who pass the training are allowed to enter the suspended platform for operation; ⑥ Perform daily maintenance and inspection of the suspended platform after completing the daily operation. II. Installation steps of the suspended platform: ① Connect the main beam to the front support frame, rear support frame, and upper support frame; connect the front, middle, and rear holes of the front structure of the main beam to the hydraulic jack, pulley, and hydraulic jack respectively using high-strength screws; connect the wire rope to the tail of the main beam, the tension sensor, the upper support frame pulley, and the main beam pulley in sequence; fix the front support frame to the structure, and place the counterweight on the rear support frame.

[0022] ② Connect the suspension platform, buffer structure, and suspension platform; after connecting the power supply, start the device through the control box; adjust the upper support frame and adjust the wire rope to a suitable tension value; adjust the hydraulic device of the suspension platform to make the sliding guide rail horizontal; ③ After the operator enters the suspended platform, they use the control box to set parameters such as the platform's rising and falling speed, the sliding guide rail inclination, and the safety height; the control box can be used to control the platform's up and down and left and right operations.

[0023] ④ Safety Precautions 1. The rated adjustment range for the overhang length of the main beam extension end is 0.3~1.5 meters; 2. The distance between the front and rear seats should be adjusted to the maximum distance possible, provided the site allows; When tensioning the reinforcing wire rope, the upper support frame should rise 3~5 cm to generate prestress and improve the rigidity of the front beam; When clamping the wire rope, the number of rope clamps should not be less than 3, with the U-shaped opening on the opposite side of the wire rope tail end and in the same direction. The rope clamps should be tightened sequentially from the hoisting point, and there should be a slight arch in the wire rope between the last rope clamp and the previous rope clamp. When tightening the rope clamp nut, the wire rope should be flattened to 1 / 2~1 / 3 of its diameter; The wire rope, hydraulic device, and controller should be inspected and maintained regularly.

[0024] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An intelligent lifting device for close-range suspended platform operation, characterized in that: The system includes a cantilevered frame erected above a building component. One end of the cantilevered frame extending out of the building component is provided with a guide rail platform. A suspended platform (3-1) is connected below the guide rail platform. A buffer device and a control device are provided on the suspended platform (3-1). The control device controls the start, stop, and lifting operations of the lifting device. The cantilever frame includes a main beam (1-1), which is supported on the building component by a front support frame (1-3) and a rear support frame (1-4). The front end of the main beam (1-1) is provided with a hollow structure (1-5) extending out of the building component. The bottom of the hollow structure (1-5) is connected to a guide rail platform by two parallel hydraulic jacks (1-10). A steel wire rope (1-14) is provided on the cantilever frame, and a tension sensor (1-13) is provided on the steel wire rope (1-14). The guide rail platform includes a sliding guide rail U-shaped groove (2-1) connected to the hydraulic jack (1-10). The bottom of the sliding guide rail U-shaped groove (2-1) is fixedly connected to the sliding guide rail. The sliding guide rail includes a first guide rail (2-2) and a second guide rail (2-3). The first guide rail (2-2) and the second guide rail (2-3) are driven by meshing gears (2-4). The gears (2-4) have an integrated drive motor inside, and the drive motor is externally connected to a power source. A level sensor (2-5) is provided at the upper center of the sliding guide rail U-shaped groove (2-1). The suspended platform (3-1) includes a hoist (3-2) connected to the guide rail platform, a buffer device disposed on the side of the suspended platform (3-1) near the building component, and a control device (3-3) disposed on the upper part of the suspended platform (3-1). A distance sensor (3-8) is disposed on the lower part of the suspended platform (3-1).

2. The intelligent lifting device for close-range suspended platform operation according to claim 1, characterized in that: An upper support frame (1-2) is provided above the main beam (1-1), and an upper support frame pulley (1-15) is installed at the top of the upper support frame (1-2); one end of the wire rope (1-14) is connected to the rear end of the main beam (1-1), the middle part of the wire rope (1-14) is connected to the support frame pulley (1-15), and the other end of the wire rope (1-14) is connected to the main beam pulley (1-9) on the hollow structure (1-5).

3. The intelligent lifting device for close-range suspended platform operation according to claim 2, characterized in that: The main beam (1-1), upper support frame (1-2), front support frame (1-3) and rear support frame (1-4) are hydraulic jacks of different specifications. The front support frame (1-3) is fixed to the building component by high-strength screws, and the rear support frame (1-4) is fixed to the building component by counterweight (1-12).

4. The intelligent lifting device for close-range suspended platform operation according to claim 2, characterized in that: The hollow structure (1-5) has a front hole (1-6), a middle hole (1-7) and a rear hole (1-8) in the horizontal direction. The front hole (1-6) and the rear hole (1-8) are respectively connected to hydraulic jacks (1-10), and the main beam pulley (1-9) is installed on the middle hole (1-7).

5. The intelligent lifting device for close-range suspended platform operation according to claim 1, characterized in that: The buffer device consists of screws (3-4), rubber (3-5), springs (3-6) and nuts (3-7); the screws (3-4) pass through the rubber (3-5) and springs (3-6) in sequence and are fixed to the side of the suspended platform (3-1) to form a multi-level shock absorption system.

6. The intelligent lifting device for close-range suspended platform operation according to claim 3, characterized in that: The control device (3-3) dynamically adjusts the stroke of the hydraulic jack of the suspension platform according to the data of the horizontal sensor (2-5). The control device (3-3) automatically adjusts the height of the hydraulic jack of the upper support frame (1-2) according to the tension value of the wire rope (1-14) fed back by the tension sensor (1-13). The control device (3-3) adjusts the height of the suspended platform from the ground according to the distance between the platform and the working surface detected by the distance sensor (3-8).

7. The intelligent lifting device for close-range suspended platform operation according to claim 1, characterized in that: The wire rope (1-14) is provided with at least 3 rope clamps, the U-shaped opening of the rope clamps faces the opposite side of the end of the wire rope, the wire rope between each two adjacent rope clamps is arched, and the nut of the rope clamp is tightened to 1 / 2 to 1 / 3 of the diameter of the wire rope.

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