Bidirectional anti-falling automatic switching device and method for super high-rise construction platform

Abstract

The invention provides a bidirectional anti-falling automatic switching device and method for a super high-rise construction platform, an integral frame unit, a top platform anti-falling unit, a base supporting platform anti-falling unit, a monitoring system and a pushing switching unit are adopted, and the integral frame unit comprises a frame body, a bottom end connecting plate and a side face mounting plate; the frame body is provided with two preformed holes which are horizontally formed from top to bottom and are respectively an upper preformed hole and a lower preformed hole, one end of the top platform anti-falling unit and one end of the base supporting platform anti-falling unit are respectively formed in the side surface mounting plate, the pushing switching unit is mounted on the side surface mounting plate, and the top platform anti-falling unit and the base supporting platform anti-falling unit are respectively connected with the top platform anti-falling unit and the base supporting platform anti-falling unit. And one of the other end of the top platform anti-falling unit and the other end of the base supporting platform anti-falling unit is selected to extend out of the corresponding preformed hole through the pushing switching unit. The relative movement direction of the top construction operation platform and the guide rail can be limited, and the safety of the full-automatic construction lifting platform system is ensured.

Description

Technical Field

[0001] This invention belongs to the field of engineering construction technology, and specifically relates to a two-way fall protection automatic switching device and method for ultra-high-rise construction platforms. Background Technology

[0002] In the construction of super high-rise buildings and silo structures, traditional construction hoisting platforms mostly use hydraulic jacking or wire rope traction technology, which has the following limitations:

[0003] The relative movement direction between the top construction platform and the guide rail is not restricted, which makes it impossible to ensure the safety of the fully automatic construction lifting platform system.

[0004] The platform is lifted in sections using hydraulic cylinders, relying on an external hydraulic pump station and a complex piping system. Disadvantages include: the hydraulic system is prone to oil leaks, has high maintenance costs, and is unstable due to temperature variations; manual intervention is required for positioning during the lifting process, resulting in low efficiency (each lifting operation takes approximately 1-2 hours); and the load-bearing capacity is limited (generally ≤50 tons), making it unsuitable for the construction needs of large-span silo structures.

[0005] Screw jacking systems (such as a certain model SC200 / 200 construction elevator): The screw is driven by a motor to rotate, which in turn moves the platform up and down along the guide rail. Disadvantages: Sliding friction between the screw and nut leads to severe wear, and the transmission efficiency is only 60%-70%; it lacks a dynamic anti-fall mechanism, relying solely on mechanical brakes, resulting in a slow response time (≥0.5 seconds).

[0006] The platform structure is non-modular, difficult to disassemble, and cannot adapt to rapid site relocation for construction. Traditional bracket support technology involves manually inserting brackets into pre-reserved openings in the building structure to achieve temporary support.

[0007] The extension and retraction of the brackets requires manual intervention, posing risks associated with working at heights; the switching of supports is time-consuming (approximately 30 minutes per operation), affecting the continuity of construction; and the poor positioning accuracy of the brackets (error ≥ 5mm) can easily lead to stress concentration in the structure.

[0008] The aforementioned technologies generally suffer from problems such as low automation, insufficient safety, and limited efficiency, making it difficult to meet the core requirements of modern super high-rise buildings for efficient, precise, and fully automated construction platforms. Summary of the Invention

[0009] The present invention aims to provide a bidirectional automatic fall protection switching device and method for ultra-high-rise construction platforms. By adopting the bidirectional automatic fall protection switching device for ultra-high-rise construction platforms, the relative movement direction between the top construction platform and the guide rail can be limited, thereby ensuring the safety of the fully automatic construction lifting platform system.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0011] A bidirectional automatic fall arrestor switching device for ultra-high-rise construction platforms includes an overall frame unit, a top platform fall arrestor unit, a base support platform fall arrestor unit, a monitoring system, and a jacking switching unit. The overall frame unit includes a frame body, a bottom connecting plate, and a side mounting plate. The bottom of the frame body is connected to the bottom of the side mounting plate via the bottom connecting plate. Two pre-drilled holes are horizontally arranged on the frame body from top to bottom, corresponding to the top platform fall arrestor unit and the base support platform fall arrestor unit, respectively: an upper pre-drilled hole and a lower pre-drilled hole. One end of the top platform fall arrestor unit and one end of the base support platform fall arrestor unit are respectively mounted on the side mounting plate. The other end of the top platform fall arrestor unit and the other end of the base support platform fall arrestor unit can extend through the upper and lower pre-drilled holes, respectively. The jacking switching unit is mounted on the side mounting plate, and selects one of the other ends of the top platform fall arrestor unit and the other end of the base support platform fall arrestor unit to extend from the corresponding pre-drilled hole.

[0012] Preferably, in the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described above, the top platform fall arrestor unit includes a first fall arrestor, a first guide column, a first supporting elastic element, a first fixed mounting base, a first rotating motor, a first drive gear, a first transmission gear, a first synchronous motion sleeve, and a first rotating actuator block; one end of the first fall arrestor is fixedly connected to the first guide column, a first through hole for the first guide column to pass through is opened on the side mounting plate, an upper bearing seat is provided at the first through hole of the side mounting plate, the first supporting elastic element is coaxially sleeved on the outside of the first guide column, the first supporting elastic element is disposed between the first fall arrestor and the side mounting plate, the first fall arrestor can extend through the corresponding reserved hole and be inserted into the slot of the guide rail under the pushing action of the first supporting elastic element, the first fixed mounting base is fixedly disposed on the first guide column, the side mounting plate is located between the first fixed mounting base and the first supporting elastic element, and the first rotating motor is disposed on the first fixed mounting base. The output shaft of the first rotary motor is coaxially connected to the first drive gear. A first threaded rod is coaxially provided on the end of the first guide post away from the first supporting elastic element. The first transmission gear is coaxially sleeved on the outside of the first threaded rod, and the first transmission gear has an internal gear ring that meshes with the first threaded rod and an external gear ring that meshes with the first drive gear. The end of the first transmission gear away from the first supporting elastic element is fixedly connected to the first rotary actuator block via a first synchronous motion sleeve. The width of the first drive gear is greater than or equal to twice the width of the first transmission gear. The first rotary motor can drive the first drive gear to rotate. The rotation of the first drive gear can drive the first transmission gear to rotate and move along the axial direction of the first threaded rod. The rotation of the first transmission gear can drive the first rotary actuator block to rotate. The bottom surface of the end of the first anti-falling member away from the first supporting elastic element is set as a horizontal plane. The top surface of the end of the first anti-falling member away from the first supporting elastic element is a downward sloping surface from the inside to the outside.

[0013] Preferably, in the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms as described above, the width of the first drive gear is greater than or equal to twice the width of the first transmission gear.

[0014] Preferably, in the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described above, the base support platform fall arrestor unit includes a second fall arrestor, a second guide column, a second support elastic element, a second fixed mounting base, a second rotating motor, a second drive gear, a second transmission gear, a second synchronous motion sleeve, and a second rotating actuator; one end of the second fall arrestor is fixedly connected to the second guide column, a second through hole for the second guide column to pass through is opened on the side mounting plate, a lower bearing seat is provided at the second through hole of the side mounting plate, the second support elastic element is coaxially sleeved on the outside of the second guide column, the second support elastic element is disposed between the second fall arrestor and the side mounting plate, the second fall arrestor can extend through the corresponding reserved hole and be inserted into the slot of the guide rail under the pushing action of the second support elastic element, the second fixed mounting base is fixedly disposed on the second guide column, the side mounting plate is located between the second fixed mounting base and the second support elastic element, and the second rotating motor... The second rotating motor is coaxially connected to the second drive gear on the second fixed mounting base. A second threaded rod is coaxially provided on the end of the second guide post away from the second supporting elastic element. The second transmission gear is coaxially sleeved on the outside of the second threaded rod, and the second transmission gear has an internal gear ring that meshes with the second threaded rod and an external gear ring that meshes with the second drive gear. One end of the second transmission gear away from the second supporting elastic element is fixedly connected to the second rotary actuator block via the second synchronous motion sleeve. The second rotating motor can drive the second drive gear to rotate, and the rotation of the second drive gear can drive the second transmission gear to rotate and move along the axial direction of the second threaded rod. The rotation of the second transmission gear can drive the second rotary actuator block to rotate. The top surface of the end of the second anti-falling member away from the second supporting elastic element is set as a horizontal plane, and the bottom surface of the end of the second anti-falling member away from the second supporting elastic element is an upward sloping plane from the inside to the outside.

[0015] Preferably, in the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms as described above, the width of the second drive gear is greater than or equal to twice the width of the second transmission gear.

[0016] Preferably, in the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms described above, the jacking switching unit includes a jacking switching cylinder, a jacking rod, and a horizontal stop bar. The jacking switching cylinder is fixedly mounted on the inner side of the side mounting plate. The side mounting plate has a cylinder mounting and positioning hole for the jacking rod to pass through. The jacking rod is horizontally positioned, and the horizontal stop bar is horizontally positioned. One end of the jacking rod is fixedly connected to the output end of the jacking switching cylinder, and the other end of the jacking rod passes through the side mounting plate and is vertically fixedly connected to the horizontal stop bar. The jacking switching cylinder can push the horizontal stop bar outward or retract it inward horizontally. When the rotating actuator block rotates to the vertical position, the rotating actuator block can contact the horizontal stop bar. When the rotating actuator block rotates to the horizontal position, the rotating actuator block is parallel to the horizontal stop bar.

[0017] Preferably, the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms described above further includes a monitoring system. The monitoring system includes a lower laser rangefinder and an upper laser rangefinder. The lower and upper laser rangefinders are respectively mounted on the side mounting plates to the second fall arrestor of the base support platform fall arrestor unit and the first fall arrestor of the top platform fall arrestor unit. The lower laser rangefinder can measure the distance from itself to the second fall arrestor of the base support platform fall arrestor unit, thereby determining whether the second fall arrestor of the base support platform fall arrestor unit has retracted into the corresponding pre-drilled hole. The upper laser rangefinder can measure the distance from itself to the second fall arrestor of the base support platform fall arrestor unit. The distance of the first anti-fall component of the top platform anti-fall unit is used to determine whether the first anti-fall component of the top platform anti-fall unit has retracted into the corresponding reserved hole. When the push-switching cylinder pushes the first rotating actuator of the top platform anti-fall unit horizontally outward, and the upper laser ranging sensor detects that the first anti-fall component of the top platform anti-fall unit has retracted into the corresponding reserved hole, the push-switching cylinder is notified to stop pushing. When the push-switching cylinder pushes the second rotating actuator of the base support platform anti-fall unit horizontally outward through the horizontal stop bar, and the lower laser ranging sensor detects that the second anti-fall component of the base support platform anti-fall unit has retracted into the corresponding reserved hole, the push-switching cylinder is notified to stop pushing.

[0018] Preferably, in the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described above, when the top construction platform is ascending, the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms switches to the upward mode. The upward mode of the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms is achieved by the following method: First, the horizontal stop bar is retracted horizontally inward by the push-pull switching cylinder. The first fall arrestor of the top platform fall arrestor unit and the second fall arrestor of the base support platform fall arrestor unit extend out of the corresponding reserved holes under the action of the first support elastic element and the second support elastic element, respectively. The second rotating actuator of the base support platform fall arrestor unit is rotated to the vertical position, and the first rotating actuator of the top platform fall arrestor unit is rotated to the horizontal position. The push-pull switching cylinder pushes the second rotating actuator of the base support platform fall arrestor unit horizontally outward through the horizontal stop bar, so that the base support platform... The second fall arrestor of the platform fall arrestor retracts into the corresponding reserved hole. When the top construction platform is climbing, the bidirectional fall arrestor automatic switching device for the super high-rise construction platform switches to the downward mode. The downward mode of the bidirectional fall arrestor automatic switching device for the super high-rise construction platform is achieved by the following method: First, the horizontal stop bar is retracted horizontally inward by the push-switching cylinder. The first fall arrestor of the top platform fall arrestor and the second fall arrestor of the base support platform fall arrestor extend out of the corresponding reserved hole under the action of the first support elastic element and the second support elastic element, respectively. The first rotating actuator of the top platform fall arrestor is rotated to the vertical position, and the second rotating actuator of the base support platform fall arrestor is rotated to the horizontal position. The push-switching cylinder pushes the first rotating actuator of the top platform fall arrestor horizontally outward, so that the first fall arrestor of the top platform fall arrestor retracts into the corresponding reserved hole.

[0019] Preferably, in the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms described above, a relatively movable top construction platform and guide rail are positioned between them. A guide rail channel is opened in the middle of the top construction platform for the guide rail to pass through. The guide rail has a rectangular cross-section, and its four side plates are each provided with a plurality of slots at equal intervals along their axial direction. The overall frame unit is fixedly mounted on the top construction platform. A jacking switching unit selects one end of the top platform fall arrestor unit and the other end of the base support platform fall arrestor unit to extend from the corresponding reserved hole and into the corresponding slot of the guide rail. Inside the slot, when the top construction platform climbs upward relative to the guide rail, the bidirectional fall protection automatic switching device for the ultra-high-rise construction platform switches to upward mode. The other end of the top platform fall protection unit extends from the corresponding reserved hole and into the corresponding slot of the guide rail. The top construction platform can only move upward relative to the guide rail. When the guide rail climbs upward relative to the top construction platform, the bidirectional fall protection automatic switching device for the ultra-high-rise construction platform switches to downward mode. The other end of the base support platform extends from the corresponding reserved hole and into the corresponding slot of the guide rail. The guide rail can only move upward relative to the top construction platform.

[0020] This invention also discloses a method for using a bidirectional fall arrestor automatic switching device for a high-rise construction platform. Four bidirectional fall arrestor automatic switching devices for high-rise construction platforms, as described above, are respectively installed in a fully automatic construction lifting platform system. The fully automatic construction lifting platform system includes a top construction work platform, guide rails, a base support platform, four climbing drive devices, and several automatic extension / retraction brackets. A guide rail channel for the guide rails to pass through is opened in the middle of the top construction work platform. The guide rails are vertically fixed in the middle of the base support platform. The four bidirectional fall arrestor automatic switching devices for high-rise construction platforms are respectively installed on the top construction work platform, located around the guide rails. The bidirectional fall arrestor automatic switching devices for high-rise construction platforms can extend into or disengage from corresponding slots, and the bidirectional fall arrestor automatic switching device for high-rise construction platforms... The switching device can limit the relative movement direction between the top construction platform and the guide rail. The climbing drive device includes a climbing drive mechanism, a screw, and ball nuts. The climbing drive mechanism is respectively set at the four corners of the base support platform. The four corners of the top construction platform are respectively opened with screw channels for the corresponding screws to pass through. The lower end of the screw is driven by the corresponding climbing drive mechanism, and the upper end of the screw is engaged with the corresponding ball nuts. The four ball nuts are respectively fixedly set at the four corners of the top construction platform. At least two automatic extension and retraction devices for brackets are respectively provided on both sides of the base support platform and on both sides of the bottom of the top construction platform. The automatic extension and retraction devices for brackets can extend the brackets to support them in the reserved holes in the wall or retract the brackets to disengage them from the reserved holes in the wall. Through the cooperation of the climbing drive device and the automatic extension and retraction devices for brackets, the alternating climbing of the top construction platform and the base support platform can be realized.

[0021] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for a super high-rise construction platform, when the top construction platform climbs upward relative to the guide rail, the bidirectional fall protection automatic switching device for the super high-rise construction platform switches to the upward mode, and the top construction platform can only move upward relative to the guide rail; when the guide rail climbs upward relative to the top construction platform, the bidirectional fall protection automatic switching device for the super high-rise construction platform switches to the downward mode, and the guide rail can only move upward relative to the top construction platform.

[0022] Preferably, in the method of using the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described above, the method includes the following steps:

[0023] Step 1: Switch the bidirectional fall protection automatic switching device used for the super high-rise construction platform to the upward mode. The top construction work platform is ready to climb. The top construction work platform can only move upward relative to the guide rail. The base support platform, as the support work platform, remains stationary. The brackets of the automatic telescopic brackets of the base support platform are supported in the reserved openings in the wall.

[0024] Step 2: The climbing drive mechanism rotates forward, driving the top construction platform to rise 2-4cm and then stop. The automatic telescopic device of the bracket of the top construction platform retracts, allowing the bracket to detach from the reserved opening on the wall.

[0025] Step 3: The climbing drive mechanism continues to rotate forward, driving the top construction platform to continue climbing;

[0026] Step 4: When the top construction platform approaches the target position, the legs of the automatic extension device of the top construction platform extend outward. During the upward climbing process of the top construction platform, the legs of the automatic extension device of the top construction platform automatically extend into the reserved opening on the wall, the climbing drive mechanism stops running, so that the top construction platform is supported on the wall, and the climbing work of the top construction platform is completed.

[0027] Step 5: Switch the two-way fall protection automatic switching device used for the super high-rise construction platform to the downward mode. The base support platform is ready to climb. The base support platform and the guide rail can only move upward relative to the top construction work platform.

[0028] Step 6: The climbing drive mechanism reverses, causing the base support platform to move upwards by 2-4 cm and then stop. The brackets of the automatic extension and retraction device of the brackets of the base support platform retract, so that the brackets are no longer supported in the reserved openings in the wall.

[0029] Step 7: The climbing drive mechanism reverses, causing the base support platform to continue climbing. The legs of the automatic extension and retraction device of the base support platform extend outward. During the upward climbing process of the base support platform, the legs of the automatic extension and retraction device of the base support platform automatically extend into the corresponding reserved openings on the wall. The climbing drive mechanism stops running, so that the base support platform is supported on the wall, completing the climbing work of the base support platform.

[0030] Repeat steps 1 to 7 to allow the top construction platform and the base support platform to alternately climb up the wall.

[0031] Preferably, in the above-described method of using the bidirectional fall arrest automatic switching device for ultra-high-rise construction platforms, the automatic extension and retraction device for the corbel includes a multi-functional support, a corbel, and a lateral support adjustment device. The corbel and the lateral support adjustment device are respectively disposed on the multi-functional support. The lateral support adjustment device enables the corbel to extend out of the multi-functional support or retract into the multi-functional support.

[0032] Preferably, in the above-described method of using the bidirectional fall arrest automatic switching device for a super high-rise construction platform, the multi-functional support has a bottom cavity and an upper cavity, which are separated by a horizontally arranged partition. The bracket is disposed in the upper cavity and is a composite support bracket, which includes a main support arm, a lower support leg, an upper support leg, and a support leg locking groove. The lower and upper support legs are parallel and horizontally arranged. One end of the lower support leg and one end of the upper support leg are respectively fixedly connected to the end of the main support arm away from the building structure. The bottom surface of the main support arm of the bracket near the wall is a horizontal plane, and the top surface of the main support arm of the bracket near the wall is an inclined plane sloping downwards from the inside. The lateral support adjustment device includes a lateral cylinder, a lateral telescopic rod, a jacking connecting rod, and a support. The multi-functional support includes a connecting rod and a lateral support elastic member. A vertical mounting plate is fixedly installed on the multi-functional support. The lateral support elastic member is located within the space enclosed by the lower support leg, the upper support leg, the main support arm, and the vertical mounting plate. The vertical mounting plate has through holes for the lower and upper support legs to pass through. One end of the lateral support elastic member is supported on the vertical mounting plate, and the other end pushes against the bracket. The ends of the upper and lower support legs away from the main support arm are perpendicularly connected to the pushing connecting rod via corresponding supporting connecting rods. One end of the lateral telescopic rod is connected to one end of the lateral cylinder, and the other end of the lateral telescopic rod is perpendicularly connected to the middle of the pushing connecting rod. The other end of the lateral cylinder is fixedly installed on the vertical mounting plate. By extending the lateral telescopic rod through the lateral cylinder, the bracket can be moved, causing the bracket to compress the lateral support elastic member.

[0033] Preferably, in the above-described method of using the bidirectional fall arrest automatic switching device for ultra-high-rise construction platforms, the automatic telescopic bracket further includes a vertical support adjustment device. The vertical support adjustment device includes two lateral connecting plates, a bottom connecting plate, a top connecting plate, a limiting cylinder, a vertical guide rod, a vertical support elastic element, a vertical push cylinder, a vertical telescopic rod, and a push rod. One end of the vertical telescopic rod is connected to one end of the vertical push cylinder, and the other end of the vertical telescopic rod is vertically fixedly connected to the push rod. The other end of the vertical push cylinder is installed on the top wall of the multi-functional support. The two lateral connecting plates are parallel to each other and horizontally arranged. The two ends of the bottom connecting plate are respectively connected to the lower ends of the two lateral connecting plates, and the two ends of the top connecting plate are respectively connected to the upper ends of the two lateral connecting plates. The limiting cylinder… Both ends of the cylinder are fixed to the two lateral connecting plates respectively. The limiting cylinder is horizontally arranged, and the vertical guide rod is vertically arranged and fixedly connected to the top connecting plate. A through hole is opened on the push rod for the vertical guide rod to pass through. A groove is opened at the bottom of the multifunctional support, and the bottom connecting plate is located in the groove. The lower end of the vertical support elastic member is fixedly connected to the bottom connecting plate, and the upper end of the vertical support elastic member is fixedly connected to the partition plate. A support locking groove matching the limiting cylinder is opened on the top wall of the multifunctional support, and a support locking groove matching the limiting cylinder is opened on the top wall of the bracket. The vertical support elastic member always pushes the bottom connecting plate downward to move the limiting cylinder downward. The vertical push cylinder can move the limiting cylinder upward and disengage it from the support locking groove by extending the vertical telescopic rod. From the above disclosed technical solution, it can be seen that, compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] In summary, the present invention provides a bidirectional automatic fall protection switching device for ultra-high-rise construction platforms, comprising a base support platform, a guide rail, four climbing drive devices, several automatic telescopic bracket devices, a top construction work platform, and four bidirectional automatic fall protection switching devices for ultra-high-rise construction platforms. The climbing drive device employs a climbing drive mechanism, a screw, and ball nuts. Through the helical transmission between the screw and ball nuts, friction loss can be reduced, achieving smooth platform lifting (transmission efficiency ≥90%). By employing the bidirectional automatic fall protection switching device for ultra-high-rise construction platforms, the relative movement direction between the top construction work platform and the guide rail can be limited, ensuring the safety of the fully automatic construction lifting platform system. Attached Figure Description

[0035] Figure 1 This is one of the three-dimensional structural diagrams of a two-way fall protection automatic switching device used for ultra-high-rise construction platforms.

[0036] Figure 2 This is the second three-dimensional structural diagram of a two-way fall protection automatic switching device used for ultra-high-rise construction platforms.

[0037] Figure 3 This is a structural diagram of a two-way fall protection automatic switching device used for ultra-high-rise construction platforms.

[0038] Figure 4 This is a structural diagram of the overall frame unit.

[0039] Figure 5 This is a structural diagram of the fall protection unit on the top platform.

[0040] Figure 6 This is a three-dimensional structural diagram of a fully automatic construction lifting platform system according to the present invention.

[0041] Figure 7 This is a structural schematic diagram of a fully automatic construction lifting platform system according to the present invention.

[0042] Figure 8 This is a top view of the base support platform.

[0043] Figure 9 This is a three-dimensional structural diagram of the automatic telescopic device for the cow leg.

[0044] Figure 10 This is a schematic diagram of the automatic telescopic device for the cow leg.

[0045] Figure 11 This is a side view of the automatic retractable cow leg device.

[0046] Figure 12 yes Figure 11 AA sectional view.

[0047] Figure 13 This is a three-dimensional structural diagram of the multi-functional support for the automatic telescopic bracket.

[0048] Figure 14 This is a side view of the multi-functional support of the automatic telescopic bracket.

[0049] Figure 15 This is an assembly diagram of the bracket, jacking connecting rod, and supporting connecting rod in the automatic extension and retraction device for the bracket.

[0050] Figure 16 This is a three-dimensional structural diagram of the vertical support adjustment device in the automatic telescopic device for the cow leg.

[0051] Figure 17 This is a schematic diagram showing the distribution of the climbing drive device and guide rails on the base support platform.

[0052] Figure 18This is a schematic diagram (front view) of the assembly of the climbing drive device and the base support platform.

[0053] Figure 19 yes Figure 18 A schematic diagram of BB.

[0054] Figure 20 This is a side view of the assembly diagram of the climbing drive device and the base support platform.

[0055] Figure 21 This is a three-dimensional structural diagram of the top construction work platform.

[0056] Figure 22 This is a schematic diagram of the structure of the top construction work platform of the fully automatic construction lifting platform system of the present invention before it is lifted.

[0057] Figure 23 This is a schematic diagram of the structure of the top construction operation platform of the fully automatic construction lifting platform system of the present invention after it has been lifted.

[0058] Figure 24 This is a schematic diagram of the structure of the base support platform of the fully automatic construction lifting platform system of the present invention after it has climbed (i.e., after it has been pulled back).

[0059] In the diagram: 1-Base support platform, 11-Screw hole, 12-Guide rail mounting base, 2-Guide rail, 21-Guide rail mounting base, 22-Slot, 3-Climbing drive mechanism, 31-Motor mounting and fixing L-shaped connecting plate, 32-High-power drive motor, 33-Reducer, 34-Locking flange, 35-Screw support workbench, 36-Screw boss, 37-Screw, 371-Screw column foot, 4-Automatic telescopic bracket, 41-Multi-functional support, 411-Partition plate, 412-Vertical mounting plate, 42-Bracket, 421-Main support arm, 422-Lower support leg, 423-Upper support leg, 424-Support leg 43-Locking slot, 431-Vertical support adjustment device, 432-Side connecting plate, 433-Bottom connecting plate, 434-Limiting cylinder, 435-Vertical guide rod, 436-Vertical support elastic component, 437-Vertical jacking cylinder, 438-Vertical telescopic rod, 439-Push rod, 44-Horizontal support adjustment device, 441-Horizontal cylinder, 442-Horizontal telescopic rod, 443-Pushing connecting rod, 444-Support connecting rod, 445-Horizontal support elastic component, 5-Top construction work platform, 51-Top platform load-bearing H-beam, 52-Vertical cylindrical column, 53-Platform walkway plate, 54-Screw rod Telescopic channel, 55-Giant column channel, 56-Ball nut, 57-Screw support bearing, 6-Two-way fall arrest automatic switching device for ultra-high-rise construction platform, 61-Integral frame unit, 610-Frame body, 611-Lower reserved hole, 612-Upper reserved hole, 613-Bottom connecting plate, 614-Side mounting plate, 615-Upper bearing seat, 616-Lower bearing seat, 617-Cylinder mounting positioning hole, 620-First threaded rod, 621-First fall arrestor, 622-First guide column, 623-First support elastic element, 624-First fixed mounting base, 625-First rotating motor, 626-The 627-First transmission gear, 628-First synchronous motion sleeve, 629-First rotary actuator, 630-Second threaded rod, 631-Second anti-fall component, 632-Second guide post, 633-Second support elastic element, 634-Second fixed mounting base, 635-Second rotary motor, 636-Second drive gear, 637-Second transmission gear, 638-Second synchronous motion sleeve, 639-Second rotary actuator, 641-Lower laser rangefinder sensor, 642-Upper laser rangefinder sensor, 651-Push switching cylinder, 652-Push rod, 653-Horizontal stop bar, 7-Wall. Detailed Implementation

[0060] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical content and features of the present invention will be described in detail below with reference to the listed embodiments and the accompanying drawings. 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. For ease of description, the terms "upper" and "lower" used below are consistent with the upper and lower directions in the accompanying drawings, but this should not be construed as a limitation of the technical solution of the present invention.

[0061] Please see Figures 1 to 5 And please combine Figures 6 to 24 This embodiment discloses a bidirectional automatic fall protection switching device 6 for a super high-rise construction platform, including an overall frame unit 61, a top platform fall protection unit, a base support platform fall protection unit, a monitoring system, and a jacking switching unit. The overall frame unit 61 includes a frame body 610, a bottom connecting plate 613, and a side mounting plate 614. The side mounting plate 614, facing the frame body 610, has an upper bearing seat 615, a lower bearing seat 616, and a cylinder mounting positioning hole 617 from top to bottom. The upper bearing seat 615 is used to install the first guide post 622 of the top platform fall protection unit, and the lower bearing seat 616 is used to install the second guide post 632 of the base support platform fall protection unit. The cylinder mounting positioning hole 617 is used to install a jacking switching cylinder 651. The bottom of the frame body 610 is connected to the bottom of the side mounting plate 614 via the bottom connecting plate 613. The top platform fall protection unit and the base support platform fall protection unit are respectively positioned on the frame body 610 from top to bottom. Two pre-drilled holes are horizontally arranged, namely an upper pre-drilled hole 612 and a lower pre-drilled hole 611. One end of the top platform anti-fall unit and one end of the base support platform anti-fall unit are respectively set on the side mounting plate 614. The other ends of the top platform anti-fall unit and the other ends of the base support platform anti-fall unit can extend through the upper pre-drilled hole 612 and the lower pre-drilled hole 611, respectively, to restrict the relative displacement of the guide rail 2 and the top construction platform 5 in two directions. The jacking switching unit is installed on the side mounting plate 614. The jacking switching unit selects one of the other ends of the top platform anti-fall unit and the other end of the base support platform anti-fall unit to extend from the corresponding pre-drilled hole. The bottom surface of the other end of the top platform anti-fall unit is set as a horizontal plane, and the top surface of the other end of the top platform anti-fall unit is a downward slope from the inside to the outside. The top surface of the other end of the base support platform anti-fall unit is set as a horizontal plane, and the bottom surface of the other end of the base support platform anti-fall unit is a upward slope from the inside to the outside.

[0062] Preferably, in the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms as described above, the top platform fall protection unit includes a first fall protection component 621, a first guide column 622, a first support elastic element 623, a first fixed mounting base 624, a first rotating motor 625, a first drive gear 626, a first transmission gear 627, a first synchronous motion sleeve 628, and a first rotating actuator 629; one end of the first fall protection component 621 is fixedly connected to the first guide column 622, and a first through hole is opened on the side mounting plate 614 for the first guide column 622 to pass through, and an upper bearing seat 61 is provided at the first through hole of the side mounting plate 614. 5. The first supporting elastic element 623 is coaxially sleeved on the outside of the first guide post 622. The first supporting elastic element 623 is disposed between the first anti-falling member 621 and the side mounting plate 614. The first anti-falling member 621 can extend through the corresponding reserved hole, i.e., the upper reserved hole 612, under the pushing action of the first supporting elastic element 623. The first fixed mounting base 624 is fixedly disposed on the first guide post 622. The side mounting plate 614 is located between the first fixed mounting base 624 and the first supporting elastic element 623. The first rotating motor 625 is disposed on the first fixed mounting base 624. The output shaft of a rotary motor 625 is coaxially connected to the first drive gear 626. A first threaded rod 620 is coaxially provided on the end of the first guide post 622 away from the first supporting elastic element 623. The first transmission gear 627 is coaxially sleeved on the outside of the first threaded rod 620, and the first transmission gear 627 has an internal gear ring meshing with the first threaded rod 620 and an external gear ring meshing with the first drive gear 626. One end of the first transmission gear 627 away from the first supporting elastic element 623 is fixedly connected to the first rotary actuator 629 via a first synchronous motion sleeve 628. The first drive gear... The width of wheel 626 is greater than or equal to twice the width of the first transmission gear 627. The first drive gear 626 can be driven to rotate by the first rotating motor 625. The rotation of the first drive gear 626 can drive the first transmission gear 627 to rotate and move along the axial direction of the first threaded rod 620. The rotation of the first transmission gear 627 can drive the first rotating actuator 629 to rotate. The bottom surface of the end of the first anti-falling member 621 away from the first supporting elastic element 623, that is, the other end of the top platform anti-falling unit, is set to a horizontal plane. The top surface of the end of the first anti-falling member 621 away from the first supporting elastic element 623 is a downward sloping surface from the inside to the outside.

[0063] Preferably, in the fully automatic construction lifting platform system described above, the base support platform anti-fall unit includes a second anti-fall component 631, a second guide column 632, a second support elastic element 633, a second fixed mounting base 634, a second rotary motor 635, a second drive gear 636, a second transmission gear 637, a second synchronous motion sleeve 638, and a second rotary actuator 639; one end of the second anti-fall component 631 is fixedly connected to the second guide column 632, and a second through hole is opened on the side mounting plate 614 for the second guide column 632 to pass through. A lower bearing seat 616 is provided at the second through hole of the side mounting plate, and the second support... The elastic element 633 is coaxially sleeved on the outside of the second guide post 632. The second supporting elastic element 633 is disposed between the second anti-falling member 631 and the side mounting plate 614. Under the pushing action of the second supporting elastic element 633, the second anti-falling member 631 can extend through the corresponding reserved hole, i.e., the lower reserved hole 611. The second fixed mounting base 634 is fixedly disposed on the second guide post 632. The side mounting plate 614 is located between the second fixed mounting base 634 and the second supporting elastic element 633. The second rotating motor 635 is disposed on the second fixed mounting base 634. The output shaft is coaxially connected to the second driving gear 636. A second threaded rod 630 is coaxially provided at the end of the second guide post 632 away from the second supporting elastic element 633. The second transmission gear 637 is coaxially sleeved on the outside of the second threaded rod 630, and the second transmission gear 637 has an internal gear ring meshing with the second threaded rod 630 and an external gear ring meshing with the second driving gear 636. One end of the second transmission gear 637 away from the second supporting elastic element 633 is fixedly connected to the second rotary actuator 639 via a second synchronous motion sleeve 638. The width of the second driving gear 636... The width of the second transmission gear 637 is greater than or equal to twice that of the second transmission gear 637. The second drive gear 636 can be driven to rotate by the second rotary motor 635. The rotation of the second drive gear 636 can drive the second transmission gear 637 to rotate and move along the axial direction of the second threaded rod 630. The rotation of the second transmission gear 637 can drive the second rotary actuator 639 to rotate. The top surface of the end of the second anti-fall member 631 away from the second support elastic element 633, i.e. the other end of the base support platform anti-fall unit, is set as a horizontal plane. The bottom surface of the end of the second anti-fall member 631 away from the second support elastic element 633 is an upward inclined plane from the inside to the outside.

[0064] Preferably, in the fully automatic construction lifting platform system described above, the jacking switching unit includes a jacking switching cylinder 651, a jacking rod 652, and a horizontal stop bar 653. The jacking switching cylinder 651 is fixedly mounted on the inner side of the side mounting plate 614. The side mounting plate 614 has a cylinder mounting positioning hole 617 for the jacking rod 652 to pass through. The jacking rod 652 is horizontally positioned, and the horizontal stop bar 653 is horizontally positioned. One end of the jacking rod 652 is fixedly connected to the output end of the jacking switching cylinder 651, and the other end of the jacking rod 652 passes through the side mounting plate 614. The plate 614 is vertically fixed to the horizontal stop bar 653. The horizontal stop bar 653 can be pushed out horizontally or retracted horizontally by the push-switching cylinder 651. When the first rotary actuator 629 or the second rotary actuator 639 rotates to the vertical position, the first rotary actuator 629 or the second rotary actuator 639 can contact the horizontal stop bar 653. When the first rotary actuator 629 or the second rotary actuator 639 rotates to the horizontal position, the first rotary actuator 629 or the second rotary actuator 639 is parallel to the horizontal stop bar 653.

[0065] Preferably, in the fully automatic construction lifting platform system described above, when the top construction work platform 5 climbs, the bidirectional fall protection automatic switching device 6 for the ultra-high-rise construction platform switches to the upward mode. The upward mode of the bidirectional fall protection automatic switching device 6 for the ultra-high-rise construction platform is achieved by the following method: First, the horizontal stop bar 653 is retracted horizontally inward by the push-switching cylinder 651. The first fall protection component 621 of the top platform fall protection unit and the second fall protection component 631 of the base support platform fall protection unit extend out of the corresponding reserved holes under the action of the first support elastic element 623 and the second support elastic element 633, respectively. The second rotary actuator 639 of the base support platform fall protection unit is rotated to the vertical position, and the first rotary actuator 629 of the top platform fall protection unit is rotated to the horizontal position. The push-switching cylinder 651 pushes the second rotary actuator 639 of the base support platform fall protection unit horizontally outward by pushing the horizontal stop bar 653, so that the second fall protection component 631 of the base support platform fall protection unit retracts into the corresponding reserved hole, i.e., the lower reserved hole 611. When the top construction platform 5 ascends, the bidirectional fall arrestor 6 for the super high-rise construction platform switches to downward mode. The downward mode of the bidirectional fall arrestor 6 for the super high-rise construction platform is achieved by the following method: first, the horizontal stop bar 653 is horizontally retracted inward by the push-pull switching cylinder 651; then, the first fall arrestor 621 of the top platform fall arrestor unit and the second fall arrestor 631 of the base support platform fall arrestor unit are respectively separated under the action of the first support elastic element 623 and the second support elastic element 633. The corresponding reserved holes are extended, namely the upper reserved hole 612 and the lower reserved hole 611, respectively. The first rotating actuator 629 of the top platform anti-fall unit is rotated to the vertical position, and the second rotating actuator 639 of the base support platform anti-fall unit is rotated to the horizontal position. The push-up switching cylinder 651 pushes the first rotating actuator 629 of the top platform anti-fall unit horizontally outward through the push-up horizontal stop bar 653, so that the first anti-fall component 621 of the top platform anti-fall unit retracts into the corresponding reserved hole, namely the upper reserved hole 612.

[0066] Preferably, in the fully automatic construction lifting platform system described above, the monitoring system includes a lower laser rangefinder 641 and an upper laser rangefinder 642. The lower laser rangefinder 641 and the upper laser rangefinder 642 are respectively mounted on the side mounting plate 614, corresponding to the second fall arrestor 631 of the base support platform fall arrestor unit and the first fall arrestor 621 of the top platform fall arrestor unit. The lower laser rangefinder 641 can measure the distance from itself to the second fall arrestor 631 of the base support platform fall arrestor unit, thereby determining whether the second fall arrestor 631 of the base support platform fall arrestor unit has retracted into the corresponding reserved hole, i.e., the lower reserved hole 611. The upper laser rangefinder 642 can measure the distance from itself to the first fall arrestor 621 of the top platform fall arrestor unit. Based on the distance of 1, it is determined whether the first anti-fall component 621 of the top platform anti-fall unit has retracted into the corresponding reserved hole, i.e., the upper reserved hole 612. When the push-switching cylinder 651 pushes the first rotating actuator 629 of the top platform anti-fall unit horizontally outward, and the upper laser ranging sensor 642 detects that the first anti-fall component 621 of the top platform anti-fall unit has retracted into the corresponding reserved hole, i.e., the upper reserved hole 612, it notifies the push-switching cylinder 651 to stop pushing. When the push-switching cylinder 651 pushes the second rotating actuator 639 of the base support platform anti-fall unit horizontally outward, and the lower laser ranging sensor 641 detects that the second anti-fall component 631 of the base support platform anti-fall unit has retracted into the corresponding reserved hole, i.e., the lower reserved hole 611, it notifies the push-switching cylinder 651 to stop pushing.

[0067] The present invention employs the aforementioned bidirectional fall protection automatic switching device 6 for ultra-high-rise construction platforms. Through the laser ranging of the lower laser ranging sensor 641 and the upper laser ranging sensor 642, and the gear transmission between the screw 37 and the ball screw, the lifting process is double-locked, and the fall protection response time is ≤0.1 seconds.

[0068] Preferably, in the bidirectional automatic fall protection switching device for ultra-high-rise construction platforms described above, a movable top construction platform 5 and a guide rail 2 are positioned between them. A guide rail channel is opened in the middle of the top construction platform for the guide rail to pass through. The guide rail 2 has a rectangular cross-section, and its four side plates are equally spaced along their axial direction with several slots 21. The overall frame unit is fixedly mounted on the top construction platform 5. A jacking switching unit selects one end of the top platform fall protection unit or the other end of the base support platform fall protection unit to extend from the corresponding pre-drilled hole and into the corresponding slot 21 of the guide rail. When the top construction platform 5 climbs upward relative to the guide rail 2, the bidirectional automatic fall protection switching device for ultra-high-rise construction platforms switches to upward mode, and the other end of the top platform fall protection unit extends from the corresponding slot 21 of the base support platform. The reserved hole extends out and into the corresponding slot 21 of the guide rail. That is, under the pushing action of the first support elastic element 623, the first anti-falling component 621 can extend out through the corresponding reserved hole, i.e., the upper reserved hole 612, and be inserted into the slot 33 of the guide rail 2. The top construction platform 5 can only move upward relative to the guide rail 2. When the guide rail 2 climbs upward relative to the top construction platform 5, the bidirectional anti-falling automatic switching device for the ultra-high-rise construction platform switches to the downward mode. The other end of the base support platform 1 extends out from the corresponding reserved hole and into the corresponding slot 21 of the guide rail 2. That is, under the pushing action of the second support elastic element 633, the second anti-falling component 631 can extend out through the corresponding reserved hole, i.e., the lower reserved hole 611, and be inserted into the slot 22 of the guide rail 2. The guide rail 2 can only move upward relative to the top construction platform 5.

[0069] Please see Figures 1 to 24This embodiment also discloses a method for using the bidirectional fall protection automatic switching device for a super high-rise construction platform as described above. Four bidirectional fall protection automatic switching devices for super high-rise construction platforms as described above are respectively installed in a fully automatic construction lifting platform system. The fully automatic construction lifting platform system includes a top construction work platform 5, a guide rail 2, a base support platform 1, four climbing drive devices, and several automatic extension and retraction brackets 4. A guide rail channel is opened in the middle of the top construction work platform 5 for the guide rail 2 to pass through, and the guide rail 2 is vertically fixed to the top construction work platform 5. In the middle of the base support platform 1, the guide rail 2 has a rectangular cross-section. The four side plates of the guide rail 2 are each provided with a plurality of equally spaced slots 21 along their own axial direction. The lower end of the guide rail is provided with a guide rail mounting base 22 for connecting to the base support platform. Four bidirectional fall protection automatic switching devices for ultra-high-rise construction platforms are respectively installed on the top construction platform 5. These four bidirectional fall protection automatic switching devices are located around the guide rail 2. Each bidirectional fall protection automatic switching device can extend into or disengage from its corresponding slot. The groove, and the bidirectional fall protection automatic switching device for the ultra-high-rise construction platform can limit the relative movement direction between the top construction platform 5 and the guide rail 2. The climbing drive device includes a climbing drive mechanism 3, a screw 37 and a ball nut 56. The screw 37 is a high-strength screw. The climbing drive mechanism 3 is respectively set at the four corners of the base support platform 1. The four corners of the top construction platform 5 are respectively opened with screw channels 54 for the corresponding screw 37 to pass through. The lower end of the screw 37 is driven by the corresponding climbing drive mechanism 3, and the upper end of the screw 37 is connected to the corresponding screw nut 56. The ball nuts 56 are engaged and connected. The four ball nuts 56 are respectively fixedly installed at the four corners of the top construction platform 5. At least two automatic extension and retraction devices 4 for the brackets are respectively provided on both sides of the base support platform 1 and the bottom sides of the top construction platform 5. The automatic extension and retraction devices 4 for the brackets can extend the brackets to support them in the reserved holes of the wall 7 or retract the brackets to disengage them from the reserved holes of the wall 7. Through the cooperation of the climbing drive device and the automatic extension and retraction devices 4 for the brackets, the top construction platform 5 and the base support platform 1 can be alternately climbed.

[0070] The present invention provides a method for using a bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms. The device comprises a base support platform 1, a guide rail 2, four climbing drive devices, several automatic telescopic bracket devices 4, a top construction platform 5, and four bidirectional fall arrestor automatic switching devices 6 for ultra-high-rise construction platforms. The climbing drive device uses a climbing drive mechanism 3, a screw 37, and ball bearing nuts 56. Through the helical transmission between the screw 37 and the ball bearing nuts 56, friction loss can be reduced, achieving smooth platform lifting (transmission efficiency ≥90%). By employing the bidirectional fall arrestor automatic switching devices 6 for ultra-high-rise construction platforms, the relative movement direction between the top construction platform 5 and the guide rail 2 can be limited, ensuring the safety of the fully automatic construction lifting platform system.

[0071] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms, the base support platform 1 is rectangular, and screw holes 11 are opened at the four corners of the base support platform 1 for the corresponding screws 37 to pass through. The middle of the base support platform is provided with a guide rail mounting base 12 for installing the guide rail 2, so as to facilitate a quick and stable connection between the base support platform and the guide rail.

[0072] Preferably, in the above-described method of using the bidirectional fall arrestor automatic switching device for a super high-rise construction platform, the alternating climbing of the top construction platform 5 and the base support platform 1 includes the climbing of the top construction platform 5 and the climbing of the base support platform 1. When the top construction platform 5 climbs, the automatic extension and retraction device 4 of the bracket on the base support platform 1 extends the bracket so that the bracket is supported in the reserved hole in the wall 7. When the automatic extension and retraction device 4 of the bracket on the top construction platform 5 retracts the bracket so that the bracket is disengaged from the reserved hole in the wall 7, the climbing drive mechanism 3 drives the screw 37 to rotate forward, and the top... Construction platform 5 moves upward along the axis of screw 37 following ball nut 56 until the top construction platform 5 climbs to the predetermined position; when the base support platform 1 climbs, the automatic extension device 4 of the bracket on the top construction platform 5 extends the bracket so that the bracket is supported in the reserved hole in the wall 7, and the automatic extension device 4 of the bracket on the base support platform 1 retracts the bracket so that the bracket is disengaged from the reserved hole in the wall 7. The climbing drive mechanism 3 drives screw 37 to reverse, and the base support platform 1 moves upward along the axis of screw 37 following screw 37 until the base support platform 1 climbs to the predetermined position.

[0073] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for a super high-rise construction platform, when the top construction platform 5 is climbing, the bidirectional fall protection automatic switching device 6 for the super high-rise construction platform switches to the upward mode, and the top construction platform 5 can only move upward relative to the guide rail 2. When the base support platform 1 is climbing, the bidirectional fall protection automatic switching device 6 for the super high-rise construction platform switches to the downward mode, and the base support platform 1 and the guide rail 2 can only move upward relative to the top construction platform 5.

[0074] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms, the automatic extension and retraction device 4 of the corbel includes a multi-functional support 41, a corbel 42, and a lateral support adjustment device 44. The corbel 42 and the lateral support adjustment device 44 are respectively disposed on the multi-functional support 41. The lateral support adjustment device 44 enables the corbel 42 to extend out of the multi-functional support 41 or retract into the multi-functional support 41.

[0075] Preferably, in the above-described method of using the bidirectional fall arrestor automatic switching device for a super high-rise construction platform, the multi-functional support 41 has a bottom cavity and an upper cavity, which are separated by a horizontally arranged partition 411. The bracket 42 is disposed in the upper cavity and is a composite support bracket, which includes a main support arm 421, a lower support leg 422, an upper support leg 423, and a support leg locking groove 424. The lower support leg 422 and the upper support leg 423 are parallel to each other. Furthermore, the lower support leg 422 and the upper support leg 423 are respectively fixedly connected to the end of the main support arm 421 away from the building structure. The bottom surface of the main support arm 421 of the corbel 42 near the wall 7 is a horizontal plane, and the top surface of the main support arm 421 of the corbel 42 near the wall 7 is an inclined plane sloping downwards from the inside. The lateral support adjustment device 44 includes a lateral cylinder 441, a lateral telescopic rod 442, a push connecting rod 443, a support connecting rod 444, and a lateral support spring. The multi-functional support 41 is equipped with a vertical mounting plate 412. A transverse support elastic member 445 is disposed within the space enclosed by the lower support leg 422, upper support leg 423, main support arm 421, and vertical mounting plate 412. The vertical mounting plate 412 has through holes for the lower support leg 422 and upper support leg 423 to pass through. One end of the transverse support elastic member 445 is supported on the vertical mounting plate 412, and the other end pushes against the bracket 42. The upper support leg 423 and lower support leg 422 are located away from the main support arm 421. The ends of the support arm 421 are vertically connected to the push connecting rod 443 via corresponding support connecting rods 444. One end of the transverse telescopic rod 442 is connected to one end of the transverse cylinder 441, and the other end of the transverse telescopic rod 442 is vertically connected to the middle of the push connecting rod 443. The other end of the transverse cylinder 441 is fixedly mounted on the vertical mounting plate 412. By extending the transverse telescopic rod 442 through the transverse cylinder 441, the bracket 42 can be moved, causing the bracket 42 to compress the transverse support elastic member 445. When the bracket 42 is in the extended state, and when the bracket 42 rises with the top construction platform 5 or the base support platform 1, the bracket 42 can automatically enter the reserved opening in the wall 7 by means of the top surface of the main support arm 421 of the bracket 42 near the wall 7, without the need for manual intervention to complete the support state switching (switching time ≤ 5 minutes), effectively improving construction efficiency.

[0076] Preferably, in the above-described method of using the bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms, the automatic extension and retraction device 4 of the corbel further includes a vertical support adjustment device 43. The vertical support adjustment device 43 includes two lateral connecting plates 431, a bottom connecting plate 432, a top connecting plate 433, a limiting cylinder 434, a vertical guide rod 435, a vertical support elastic element 436, a vertical push cylinder 437, a vertical telescopic rod 438, and a push rod 439. The vertical telescopic rod 438... One end of the vertical push cylinder 437 is connected to one end of the vertical telescopic rod 438, and the other end of the vertical telescopic rod 438 is vertically fixedly connected to the push rod 439. The other end of the vertical push cylinder 437 is installed on the top wall of the multi-functional support 41. The two lateral connecting plates 431 are parallel to each other and horizontally arranged. The two ends of the bottom connecting plate 432 are respectively connected to the lower ends of the two lateral connecting plates 431, and the two ends of the top connecting plate 433 are respectively connected to the upper ends of the two lateral connecting plates 431. The limiting circle The two ends of the cylinder 434 are respectively fixed to the two lateral connecting plates 431. The limiting cylinder 434 is horizontally arranged, the vertical guide rod 435 is vertically arranged and fixedly connected to the top connecting plate 433, the push rod 439 has a through hole for the vertical guide rod 435 to pass through, the bottom of the multi-functional support 41 has a groove, the bottom connecting plate 432 is located in the groove, the lower end of the vertical support elastic member 436 is fixedly connected to the bottom connecting plate 432, and the vertical support elastic member 436... The upper end of 36 is fixedly connected to the partition plate 411. The top wall of the multifunctional support 41 has a support slot that matches the limiting cylinder 434. The top wall of the bracket 42 has a support slot that matches the limiting cylinder 434. The vertical support elastic member 436 always pushes the bottom connecting plate 432 downward, causing the limiting cylinder 434 to move downward. The vertical push cylinder 437 can move the limiting cylinder 434 upward and disengage it from the support slot by extending the vertical telescopic rod 438. The vertical support adjustment device 43 can lock the retracted state of the bracket 42, keeping it in the retracted state and preventing the service life of the transverse cylinder 441 from being reduced due to long-term operation.

[0077] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for a super high-rise construction platform, the climbing drive mechanism 3 includes a motor mounting and fixing L-shaped connecting plate 31, a high-power drive motor 32, a reducer 33, a locking flange 34, a screw column foot 371, a screw support worktable 35, and a screw boss 36; the screw 37 includes a screw section and screw column feet 371 coaxially disposed at both ends of the screw section; the motor mounting and fixing L-shaped connecting plate 31 is fixedly disposed below the base support platform 1; the high-power drive motor 32 is disposed at the tail of the reducer 33; the output shaft of the high-power drive motor 32 is fixedly connected to the input end of the reducer 33 via a coupling or flange; the reducer 33 is fixedly connected to the body of the reducer via bolts. The screw cam 36 is fixedly connected to the L-shaped connecting plate 31 for motor mounting. The screw cam 36 is fixedly mounted on the screw column foot 371 at the lower part of the screw 37. The screw support worktable 35 is fixedly mounted on the base support platform 1. The screw cam 36 is supported on the screw support worktable 35. The screw cam 36 and the screw support worktable 35 are in rolling contact via ball bearings, allowing the screw cam 36 to rotate on the upper surface of the screw support worktable 35. The lower end of the screw column foot 371 at the lower part of the screw 37 passes sequentially through the screw support worktable 35 and the base support platform 1, and is threadedly connected to the output end of the reducer 33 via a locking flange 34. A bearing is provided between the screw support worktable 35 and the screw column foot 371 at the lower part of the screw 37. Thus, the high-power drive motor 32, after being adjusted by the reducer 33, drives the screw 37 to rotate, causing the base support platform 1 or the top construction work platform 5 to rise and fall vertically along the guide rail 2.

[0078] Preferably, in the above-described method of using the bidirectional fall arrest automatic switching device for a super high-rise construction platform, the top construction platform 5 adopts a five-layer modular working surface design, consisting of a first, second, third, fourth, and fifth layer from bottom to top. Its core structure comprises the following components: several top-level platform load-bearing H-beams 51, several vertical cylindrical columns 52, and several platform walkway slabs 53. The top-level platform load-bearing H-beams 51 serve as the main load-bearing frame, bearing the overall load of the platform. These top-level platform load-bearing H-beams 51 are arranged horizontally longitudinally or horizontally laterally. They are rigidly connected to the vertical cylindrical columns 52 by welding or high-strength bolts, forming a basic support frame. The vertical cylindrical columns 52 are vertical support structures, transferring loads to the foundation and providing a height positioning reference for multiple working surfaces. They are symmetrically distributed longitudinally along the top-level platform load-bearing H-beams 51, forming a spatial truss system with them. Platform walkways 53 are laid on the top-level platform load-bearing H-beams 51 of each layer. These walkways provide safe working access and enhance the overall rigidity of the platform. They are horizontally welded between the vertical cylindrical columns 52, supported at the bottom by H-beam sub-beams, and covered with anti-slip steel plates. A guide rail channel for shipbuilding is opened in the middle of the top construction platform 5. Screw telescopic channels 54 are opened at each of the four corners of the top construction platform for screws to pass through. These channels provide vertical movement guidance space for the lifting screws and are longitudinally arranged along the four corners of the top construction platform, penetrating all five working surfaces. Wear-resistant guide plates are installed on the inner walls to avoid interference with the platform structure. Ball bearing nuts 56 are fixed to the bottommost top-level platform load-bearing H-beams 51 of the top construction platform using high-strength bolts, with precise alignment between the ball bearing nuts 56 and the screw telescopic channels 54.

[0079] Preferably, in the above-described method of using the bidirectional fall protection automatic switching device for a super high-rise construction platform, the top construction platform is further provided with four screw support bearings 57. The screw support bearings are located between the vertical cylindrical columns 52 of the fourth layer of the top construction platform, and are fixed to the vertical cylindrical columns 52 by welding with flange bearing seats. The screw support bearings have built-in self-aligning roller bearings to adapt to dynamic working conditions, ensure the axial stability of the screw and eliminate eccentric loads.

[0080] Please continue reading. Figures 1 to 24 The method of using the bidirectional fall protection automatic switching device for ultra-high-rise construction platforms of the present invention specifically includes the following steps:

[0081] Step 1: Switch the bidirectional fall arrestor automatic switching device 6 used for the high-rise construction platform to the upward mode. The top construction platform 5 prepares to climb. The top construction platform 5 can only move upward relative to the guide rail 2. The base support platform 1, as the supporting platform, remains stationary. The brackets of the automatic extension and retraction device 4 of the base support platform 1 are supported in the reserved openings in the wall 7. Figure 22 As shown;

[0082] Step 2: The climbing drive mechanism 3 rotates forward, driving the top construction platform 5 to rise 2-4cm and then stop. The automatic telescopic device 4 of the bracket of the top construction platform retracts, causing the bracket to detach from the reserved opening on the wall 7.

[0083] Step 3: The climbing drive mechanism 3 continues to rotate forward, driving the top construction platform 5 to continue climbing;

[0084] Step 4: When the top construction platform 5 approaches its target position, the legs of the automatic extension device 4 of the top construction platform 5 extend outwards. During the upward climbing process of the top construction platform 5, the legs of the automatic extension device 4 automatically extend into the pre-reserved opening in the wall 7. The climbing drive mechanism 3 stops operating, allowing the top construction platform 5 to be supported on the wall 7, thus completing the climbing operation of the top construction platform 5. Figure 23 As shown;

[0085] Step 5: Switch the two-way fall protection automatic switching device 6 used for the super high-rise construction platform to the downward mode. The base support platform 1 is ready to climb. The base support platform 1 and the guide rail 2 can only move upward relative to the top construction work platform 5.

[0086] Step 6: The climbing drive mechanism 3 reverses, causing the base support platform 1 to move upwards by 2-4 cm and then stop. The brackets of the automatic extension and retraction device 4 of the brackets of the base support platform 1 retract, so that the brackets are no longer supported in the reserved openings on the wall 7.

[0087] Step 7: The climbing drive mechanism 3 reverses, causing the base support platform 1 to continue climbing. The legs of the automatic extension and retraction device 4 of the base support platform 1 extend outwards. During the upward climbing process of the base support platform 1, the legs of the automatic extension and retraction device 4 of the base support platform 1 automatically extend into the corresponding reserved openings on the wall 7. The climbing drive mechanism 3 stops operating, allowing the base support platform 1 to be supported on the wall 7, completing the climbing operation of the base support platform 1. Figure 24 As shown;

[0088] Repeat steps 1 to 7 to achieve the alternating ascent of the top construction platform 5 and the base support platform 1 along the wall 7.

[0089] The present invention provides a method for using a fully automatic construction lifting platform system, which can significantly improve transmission efficiency and stability: through the helical transmission between the screw and the ball nut 56, friction loss can be effectively reduced, and the platform can be lifted and lowered smoothly (transmission efficiency ≥90%); fully automatic support switching is achieved: through the cooperation of the bottom large-load automatic telescopic device and the bracket 42, the support state switching can be completed without manual intervention (switching time ≤5 minutes); enhanced safety protection capability: by adopting the bidirectional fall protection automatic switching device 6 for ultra-high-rise construction platforms, the bidirectional fall protection automatic switching device 6 for ultra-high-rise construction platforms can limit the relative movement direction between the top construction platform 5 and the guide rail 2, ensuring the safety of the fully automatic construction lifting platform system; adaptable to complex construction scenarios: adopting a five-layer modular platform design, it can climb bidirectionally along the building wall 7, compatible with silo structures and ultra-high-rise core tube construction requirements.

[0090] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms, characterized in that, The system includes an overall frame unit, a top platform fall protection unit, a base support platform fall protection unit, a monitoring system, and a jacking switching unit. The overall frame unit comprises a frame body, a bottom connecting plate, and side mounting plates. The bottom of the frame body is connected to the bottom of the side mounting plates via the bottom connecting plate. Two pre-drilled holes are horizontally arranged on the frame body, corresponding to the top platform fall protection unit and the base support platform fall protection unit respectively (an upper pre-drilled hole and a lower pre-drilled hole). One end of the top platform fall protection unit and one end of the base support platform fall protection unit are respectively mounted on the side mounting plates. The other end of the top platform fall protection unit and the bottom support platform fall protection unit are respectively mounted on the side mounting plates. The other end of the base support platform anti-fall unit can extend through the upper and lower pre-drilled holes respectively. The push-to-switch unit is installed on the side mounting plate. The push-to-switch unit selects one of the other ends of the top platform anti-fall unit and the other end of the base support platform anti-fall unit to extend from the corresponding pre-drilled hole. The bottom surface of the other end of the top platform anti-fall unit is set as a horizontal plane, and the top surface of the other end of the top platform anti-fall unit is a downward slope from the inside to the outside. The top surface of the other end of the base support platform anti-fall unit is set as a horizontal plane, and the bottom surface of the other end of the base support platform anti-fall unit is an upward slope from the inside to the outside.

2. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 1, characterized in that, The top platform anti-fall unit includes a first anti-fall component, a first guide post, a first supporting elastic element, a first fixed mounting base, a first rotary motor, a first drive gear, a first transmission gear, a first synchronous motion sleeve, and a first rotary actuator. One end of the first anti-fall component is fixedly connected to the first guide post. A first through hole for the first guide post to pass through is provided on the side mounting plate. An upper bearing seat is provided at the first through hole of the side mounting plate. The first supporting elastic element is coaxially sleeved on the outside of the first guide post and is disposed between the first anti-fall component and the side mounting plate. The first anti-fall component can extend through the corresponding reserved hole under the pushing action of the first supporting elastic element. The first fixed mounting base is fixedly disposed on the first guide post. The side mounting plate is located between the first fixed mounting base and the first supporting elastic element. The first rotary motor is disposed on the first fixed mounting base. The output shaft of the first rotary motor is connected to the first drive gear. The first guide post is coaxially connected with the first threaded rod at the end away from the first supporting elastic element. The first transmission gear is coaxially sleeved on the outside of the first threaded rod, and the first transmission gear has an internal gear ring that meshes with the first threaded rod and an external gear ring that meshes with the first drive gear. The end of the first transmission gear away from the first supporting elastic element is fixedly connected to the first rotary actuator block via a first synchronous motion sleeve. The width of the first drive gear is greater than or equal to twice the width of the first transmission gear. The first drive gear can be driven to rotate by the first rotary motor. The rotation of the first drive gear can drive the first transmission gear to rotate and move along the axial direction of the first threaded rod. The rotation of the first transmission gear can drive the first rotary actuator block to rotate. The bottom surface of the end of the first anti-falling member away from the first supporting elastic element is set as a horizontal plane, and the top surface of the end of the first anti-falling member away from the first supporting elastic element is a downward sloping surface from the inside to the outside.

3. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 2, characterized in that, The width of the first driving gear is greater than or equal to twice the width of the first transmission gear.

4. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 2, characterized in that, The base support platform anti-fall unit includes a second anti-fall component, a second guide column, a second supporting elastic element, a second fixed mounting base, a second rotary motor, a second drive gear, a second transmission gear, a second synchronous motion sleeve, and a second rotary actuator. One end of the second anti-fall component is fixedly connected to the second guide column. A second through hole for the second guide column to pass through is provided on the side mounting plate. A lower bearing seat is provided at the second through hole of the side mounting plate. The second supporting elastic element is coaxially sleeved on the outside of the second guide column. The second supporting elastic element is disposed between the second anti-fall component and the side mounting plate. The second anti-fall component can extend through the corresponding reserved hole under the pushing action of the second supporting elastic element. The second fixed mounting base is fixedly disposed on the second guide column. The side mounting plate is located between the second fixed mounting base and the second supporting elastic element. The second rotary motor is disposed on the second fixed mounting base. The output shaft of the motor is coaxially connected to the second drive gear. A second threaded rod is coaxially provided on the end of the second guide post away from the second supporting elastic element. The second transmission gear is coaxially sleeved on the outside of the second threaded rod. The second transmission gear has an internal gear ring that meshes with the second threaded rod and an external gear ring that meshes with the second drive gear. One end of the second transmission gear away from the second supporting elastic element is fixedly connected to the second rotary actuator block via the second synchronous motion sleeve. The second drive gear can be driven to rotate by the second rotary motor. The rotation of the second drive gear can drive the second transmission gear to rotate and move along the axial direction of the second threaded rod. The rotation of the second transmission gear can drive the second rotary actuator block to rotate. The top surface of the end of the second anti-falling member away from the second supporting elastic element is set as a horizontal plane. The bottom surface of the end of the second anti-falling member away from the second supporting elastic element is an upward sloping plane from the inside to the outside.

5. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 4, characterized in that, The width of the second driving gear is greater than or equal to twice the width of the second transmission gear.

6. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 4, characterized in that, The push-switching unit includes a push-switching cylinder, a push rod, and a horizontal stop bar. The push-switching cylinder is fixedly mounted on the inner side of the side mounting plate. The side mounting plate has a cylinder mounting and positioning hole for the push rod to pass through. The push rod is horizontally positioned, and the horizontal stop bar is horizontally positioned. One end of the push rod is fixedly connected to the output end of the push-switching cylinder, and the other end of the push rod passes through the side mounting plate and is vertically fixedly connected to the horizontal stop bar. The push-switching cylinder can push the horizontal stop bar outward or retract it inward horizontally. When the rotating actuator block rotates to the vertical position, the rotating actuator block can contact the horizontal stop bar. When the rotating actuator block rotates to the horizontal position, the rotating actuator block is parallel to the horizontal stop bar.

7. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 6, characterized in that, The system also includes a monitoring system comprising a lower laser rangefinder and an upper laser rangefinder. The lower and upper laser rangefinders are respectively mounted on the side mounting plates to the second fall arrestor of the base support platform fall arrestor unit and the first fall arrestor of the top platform fall arrestor unit. The lower laser rangefinder can measure the distance from itself to the second fall arrestor of the base support platform fall arrestor unit, thereby determining whether the second fall arrestor of the base support platform fall arrestor unit has retracted into the corresponding pre-drilled hole. The upper laser rangefinder can measure the distance from itself to the first fall arrestor of the top platform fall arrestor unit. The distance is used to determine whether the first fall arrestor of the top platform fall arrestor unit has retracted into the corresponding reserved hole. When the push-switching cylinder pushes the first rotating actuator of the top platform fall arrestor unit horizontally outward, the upper laser range sensor notifies the push-switching cylinder to stop pushing after it detects that the first fall arrestor of the top platform fall arrestor unit has retracted into the corresponding reserved hole. When the push-switching cylinder pushes the second rotating actuator of the base support platform fall arrestor unit horizontally outward through the horizontal stop bar, the lower laser range sensor notifies the push-switching cylinder to stop pushing after it detects that the second fall arrestor of the base support platform fall arrestor unit has retracted into the corresponding reserved hole.

8. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 6, characterized in that, When the top construction platform ascends, the bidirectional fall arrestor automatic switching device for the ultra-high-rise construction platform switches to upward mode. The upward mode of the bidirectional fall arrestor automatic switching device for the ultra-high-rise construction platform is achieved through the following method: First, the horizontal stop bar is retracted horizontally inward by the push-pull switching cylinder. The first fall arrestor of the top platform fall arrestor unit and the second fall arrestor of the base support platform fall arrestor unit extend out of their corresponding pre-drilled holes under the action of the first and second support elastic elements, respectively. The second rotary actuator of the base support platform fall arrestor unit is rotated to a vertical position, and the first rotary actuator of the top platform fall arrestor unit is rotated to a horizontal position. The push-pull switching cylinder then pushes the second rotary actuator of the base support platform fall arrestor unit horizontally outward through the horizontal stop bar, causing the second fall arrestor of the base support platform fall arrestor unit to retract accordingly. Inside the reserved hole; when the top construction platform is climbing, the bidirectional fall protection automatic switching device for the super high-rise construction platform switches to the downward mode. The downward mode of the bidirectional fall protection automatic switching device for the super high-rise construction platform is achieved by the following method: first, the horizontal stop bar is retracted horizontally inward by the push-switching cylinder. The first fall protection component of the top platform fall protection unit and the second fall protection component of the base support platform fall protection unit extend out of the corresponding reserved hole under the action of the first support elastic element and the second support elastic element, respectively. The first rotating execution block of the top platform fall protection unit is rotated to the vertical position, and the second rotating execution block of the base support platform fall protection unit is rotated to the horizontal position. The push-switching cylinder pushes the first rotating execution block of the top platform fall protection unit horizontally outward, so that the first fall protection component of the top platform fall protection unit retracts into the corresponding reserved hole.

9. The bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms as described in claim 1, characterized in that, The top construction platform and guide rail are positioned between the relatively movable top construction platform and the guide rail. A guide rail channel is opened in the middle of the top construction platform for the guide rail to pass through. The guide rail has a rectangular cross-section, and its four side plates are each equally spaced with slots along their axial direction. The overall frame unit is fixedly mounted on the top construction platform. A jacking switching unit selects one end of the top platform fall protection unit or the other end of the base support platform fall protection unit to extend from the corresponding reserved hole and into the corresponding slot of the guide rail. When the top construction platform climbs upward relative to the guide rail, the bidirectional fall protection automatic switching device for the ultra-high-rise construction platform switches to upward mode, and the other end of the top platform fall protection unit extends from the corresponding reserved hole and into the corresponding slot of the guide rail. The top construction platform can only move upward relative to the guide rail. When the guide rail climbs upward relative to the top construction platform, the bidirectional fall protection automatic switching device for the ultra-high-rise construction platform switches to downward mode, and the other end of the base support platform extends from the corresponding reserved hole and into the corresponding slot of the guide rail. The guide rail can only move upward relative to the top construction platform.

10. A method for using a bidirectional fall arrestor automatic switching device for ultra-high-rise construction platforms, characterized in that, Four bidirectional fall arrestor automatic switching devices for ultra-high-rise construction platforms as described in any one of claims 1 to 9 are respectively installed in a fully automatic construction lifting platform system. The fully automatic construction lifting platform system includes a top construction work platform, guide rails, a base support platform, four climbing drive devices, and several automatic extension / retraction brackets. A guide rail channel for the guide rails to pass through is opened in the middle of the top construction work platform. The guide rails are vertically fixed in the middle of the base support platform. The four bidirectional fall arrestor automatic switching devices for ultra-high-rise construction platforms are respectively installed on the top construction work platform, located around the guide rails. The bidirectional fall arrestor automatic switching devices for ultra-high-rise construction platforms can extend into or disengage from corresponding slots, and can restrict top construction work. The relative movement direction of the work platform and the guide rail, the climbing drive device includes a climbing drive mechanism, a screw, and ball nuts. The climbing drive mechanism is respectively set at the four corners of the base support platform. The four corners of the top construction work platform are respectively opened with screw channels for the corresponding screws to pass through. The lower end of the screw is driven by the corresponding climbing drive mechanism, and the upper end of the screw is engaged with the corresponding ball nuts. The four ball nuts are respectively fixedly set at the four corners of the top construction work platform. At least two automatic extension and retraction devices for brackets are respectively provided on both sides of the base support platform and the bottom sides of the top construction work platform. The automatic extension and retraction devices for brackets can extend the brackets to support them in the reserved holes in the wall or retract the brackets to disengage them from the reserved holes in the wall. Through the cooperation of the climbing drive device and the automatic extension and retraction devices for brackets, the alternating climbing of the top construction work platform and the base support platform can be realized.

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