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EP-4524079-B1 - LEAPING METHOD FOR A CONSTRUCTION LIFTING DEVICE

EP4524079B1EP 4524079 B1EP4524079 B1EP 4524079B1EP-4524079-B1

Inventors

  • LIU, WENXIANG
  • WU, JIANFENG
  • SHI, CHENFENG
  • CHEN, MING
  • ZHU, JIAJUN
  • SONG, Linfeng

Dates

Publication Date
20260513
Application Date
20240905

Claims (10)

  1. A leaping method for a construction lifting device, comprising: connecting a host platform (4) of the construction lifting device to a top crossbeam (3) by a drive device (39, 82, 471); raising a car (5) of the construction lifting device close to the host platform (4) and fixedly connecting the car to the host platform; and activating the drive device to lift the host platform (4) to the target floor (1), characterized in that the leaping method further includes: before erecting the top crossbeam (3), lifting the top crossbeam (3) to an installation position using a winch (11) arranged on the target floor (1), a transition pulley (85) installed on a shaft wall (21), and a rope connecting the winch and the transition pulley (85).
  2. The leaping method according to claim 1, wherein the step of connecting the host platform (4) to the top crossbeam (3) by a drive device (39, 82, 471) include: connecting the host platform (4) to the top crossbeam using fixed pulleys (39) and a climbing rope (82), and connecting a rope climber (471) to the host platform (4) and threading the climbing rope (82) through the rope climber (471); and/or wherein the leaping method further includes: removing a connection between the host platform and a current floor before activating the drive device, and connecting the host platform (4) to the target floor (1) after the host platform is lifted to the target floor.
  3. The leaping method according to claims 1 or 2, wherein the step of fixedly connecting the car (5) to the host platform (4) includes: connecting the car to the host platform using a plurality of rigid connecting rods (451); and connecting the car to the host platform using flexible ropes (452).
  4. The leaping method according to any of claims 1-3, wherein the leaping method further includes: after erecting the top crossbeam (3), lifting car guide rails (81) through the winch (11) and the top crossbeam (3), and installing the car guide rails (81) to extend the car guide rails on side walls on both sides of the shaft to the target floor (1).
  5. The leaping method according to any of claims 1-4, wherein the step of erecting a top crossbeam (3) above the target floor (1) in the shaft (2) includes: horizontally arranging the top crossbeam across the shaft between front (22) and rear (21) walls of the shaft; and/or wherein the leaping method further includes: extending a compensation chain (82) connected between bottom of a counterweight (6) and that of the car (5) and extending a driving rope (81) connected between the host platform (4), the counterweight, and the car (5), before activating the drive device, so that the counterweight remains at the bottom of the shaft during the leaping process of the host platform; and/or wherein the method includes: arranging a compensation chain quick release buckle (951) at the bottom of the counterweight; and extending a length of the compensation chain through the quick release buckle at the bottom of the shaft (2) after the car has risen close to the host platform.
  6. The leaping method according to claim 5, wherein the method also includes: lifting a driving rope spool (50) through the winch and the top crossbeam (3) and arranging it outside a door opening on a lower floor (99) next to the target floor (1), before the step of extending the driving rope.; and/or wherein the host platform (4) is provided with a traction machine (43), and at least one end of the driving rope (81) is connected to the host platform (4) through an adjustable rope head component, where the step of extending the driving rope (81) include: releasing the driving rope (81) through the adjustable rope head component.
  7. The leaping method according to claim 6, wherein a fixed end of the driving rope (81) is connected to the host platform (4) through a first rope head component (811), and the driving rope (81), starting from the fixed end, is sequentially wound around a counterweight fixed pulley (61) at the top of the counterweight, the traction machine on the host platform (4), a car fixed pulley (51) at the top of the car, and a second rope head component (812) on the host platform (4) before being wound onto the driving rope spool (50), where the second rope head component (812) is an adjustable rope head component; and/or wherein the second rope head component (812) includes: a rope head body (961) connected to the host platform (4) and comprising an outer wall, an internal cavity defined by the outer wall, a first port (965) and a second port (964) at both ends of the internal cavity, where a size of the internal cavity decreases gradually from the first port (965) to the second port (964), and a wedge block (963) having a shape that matches the internal cavity and capable of being inserted into the internal cavity from the first port (965), causing the driving rope (81) to be clamped between the wedge block (963) and the outer wall of the rope head body (961), wherein, the step of extending the driving rope (81) include: removing the wedge block, taking out the driving rope (81) from the second rope head component (812), and releasing the driving rope (81) from the driving rope spool (50).
  8. The leaping method according to any of claims 1-7, wherein the leaping method further includes arranging a climbing rope (82) as follows: winding a free end of the climbing rope onto a climbing rope spool (49), then passing through a rope climber (471) connected to a front first position (47) of the host platform (4), extending upwards to wrap around a second crossbeam fixed pulley (39) on the top crossbeam (3), extending downwards to wrap around a second platform fixed pulley (461) connected to a front second position (46) of the host platform (4), extending horizontally to wrap around a first platform fixed pulley (451) connected to a rear second position (45) of the host platform, extending upwards to wrap around a first crossbeam fixed pulley (38) on the top crossbeam (3), and finally extending downwards to fix to the host platform through a rope hook (441) at a rear first position (45).
  9. The leaping method according to any of claims 1-8, wherein the leaping method further includes: extending a speed governor rope between a speed governor (7) and a safety gear lifting mechanism (76), and lifting and installing the speed governor on the car guide rails of the target floor (1); and particularly wherein the speed governor (7) is connected with the safety gear lifting mechanism that is connected to the car through a speed governor rope, wherein the speed governor rope includes a first section (711) connected to the speed governor and a second section (72) connected to the safety gear lifting mechanism, where the first section and the second section are each wound into a U-shaped shape through a wire clamp (962) and connected through a ring buckle (74), and the first section includes a redundant segment (712) retained through the wire clamp, and the leaping method further includes: extending the speed governor rope by adjusting a position of the wire clamp to release the redundant segment (712).
  10. The leaping method according to any of claims 1-9, wherein the step of removing a connection between the host platform (4) and the current floor include retracting front (41) and rear (42) legs of the host platform (4), and the step of connecting the host platform (4) to the target floor (1) include unfolding the front and rear legs.

Description

The present invention relates to the field of construction lifting devices, in particular to a construction lifting device and a leaping method thereof. Construction lifting devices are used for transporting building materials and construction workers during the construction process. As the height of a building gradually increases, the construction lifting devices also need to leap multiple times to raise its operating height, transporting goods and workers to higher floors, such as the floor under construction. The existing construction lifting devices are usually installed outside the buildings, with their operations being affected by factors such as climate in the outside world. WO2015003965A1 relates to a technical auxiliary platform for temporary use in an elevator shaft. The technical auxiliary platform is used during the creation of an elevator. The technical auxiliary platform comprises a supporting structure, which has rests or supports, by means of which the technical auxiliary platform can be fixed in recesses or on supporting brackets of the shaft walls. Furthermore, the technical auxiliary platform is equipped with a first motorized lifting means, which enables the movement of the technical auxiliary platform itself, and the technical auxiliary platform is equipped with a second motorized lifting means, which enables the lifting of a movable floor together with a machine room arranged on said movable floor. Furthermore, guide rollers are provided on the supporting structure, which guide rollers can guide the technical auxiliary platform along the shaft walls of the elevator shaft during movement. WO2023160817A1 discloses an elevator construction arrangement comprises: a hoistway having a bottom section, a top section and optionally at least one intermediate section between the bottom and top sections in a building, an elevator car, a counterweight, car guide rails for guiding the car, counterweight guide rails for guiding the counterweight, an elevator hoisting machine and a suspension roping arranged to suspend the car and the counterweight during construction time use of the elevator, at least one protection deck mounted within the hoistway during elevator installation in a section of the hoistway, an installation platform configured to be guided on car guide rails during installation of at least one hoistway section, a hoist device configured to hoist a working platform in the bottom section and configured to hoist the working platform in hoistway sections above the bottom section, the hoist device preferably comprises a man riding hoist attachable to the car or the installation platform, and a hoist rope attachable to the car or the installation platform and movable with the hoist device during the elevator installation, a hoisting point configured to support the working platform via the hoist device and the hoist rope. During the elevator installation in the bottom section the hoisting point is configured to be mounted to a first protection deck, and the working platform guided on the car guide rails is configured to be used as an installation platform, and after each section elevator installation, the car is during construction time use configured to be moved by the elevator hoisting machine suspending the car and the counterweight together with the suspension roping, and during construction time use of the car. The object of the present application is to solve or at least alleviate the problems existing in the prior art. According to the present invention, a leaping method for a construction lifting device is provided, comprising: erecting a top crossbeam above a target floor in a shaft;connecting a host platform of the construction lifting device to the top crossbeam by a drive device;raising a car of the construction lifting device close to the host platform and fixedly connecting the car and the host platform; andactivating the drive device to lift the host platform to the target floor. Particular embodiments may additionally include at least one, or a plurality of, the following optional features, alone or in combination with each other within the scope of the appended claims: Optionally, the step of connecting the host platform to the top crossbeam by a drive device include: connecting the host platform to the top crossbeam using fixed pulleys and a climbing rope, and connecting a rope climber to the host platform and threading the climbing rope through the rope climber. Optionally, the leaping method further includes: removing the connection between the host platform and the current floor before activating the drive device, and connecting the host platform to the target floor after the host platform is lifted to the target floor. Optionally, the step of fixedly connecting the car to the host platform include: connecting the car to the host platform using a plurality of rigid connecting rods; andconnecting the car to the host platform using flexible ropes. The leaping method of the