CN216763991U

CN216763991U - Construction elevator

Info

Publication number: CN216763991U
Application number: CN202122734204.6U
Authority: CN
Inventors: 张夏
Original assignee: Suzhou Kelairui Intelligent Equipment Co ltd
Current assignee: Suzhou Kelairui Intelligent Equipment Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-06-17
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a construction elevator which is arranged in an elevator shaft of a building and used as an elevator for construction, and comprises a top beam and a hoisting rope, wherein the top beam is arranged at the upper end of the elevator shaft, the middle part of the hoisting rope is releasably connected with a connecting piece arranged on the top beam or a lift car, so that the hoisting rope forms a reserved section and a working section with adjustable length proportion, and the working section is matched with the lift car, a balance weight and the hoisting machine arranged in the elevator shaft to form a hoisting system; the connecting piece comprises a rod for connecting the top beam or the lift car and a first pulley arranged at one end of the rod, the middle part of the hoisting rope is wound on the first pulley, and the reserved section and the working section are connected through a detachable rope clamp at a position close to the first pulley.

Description

Construction elevator

Technical Field

The utility model relates to the field of construction machinery, in particular to a construction elevator.

Background

The conventional building construction elevator is a building machine which adopts a gear and rack meshing mode to enable a suspension cage to do lifting motion and is used for conveying constructors, tools, equipment and materials, and has the defects of low lifting efficiency and high noise. Patent ZL201921471144X provides a construction hoist installed in the elevator shaft of a building, which uses a traction machine and a traction rope to lift a car, and can solve the above problems. In this patent, the hoisting ropes are connected by means of a wedge-shaped connecting piece, the wedge socket portion of which is subjected to a great external tension. Therefore, strict requirements are imposed on the material and preparation of the wedge sleeve, and the opening part of the wedge sleeve is prevented from bursting, which also results in higher cost of the wedge connector.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem of the prior art, the utility model provides a construction hoist which is arranged in an elevator shaft of a building and used as a hoist for construction, the construction hoist comprises a top beam and a hoisting rope, the top beam is arranged at the upper end of the elevator shaft, the middle part of the hoisting rope is releasably connected with a connecting piece arranged on the top beam or a lift car, so that the hoisting rope forms a reserved section and a working section with adjustable length proportion, and the working section is matched with the lift car, a counterweight and a hoisting machine arranged in the elevator shaft to form a hoisting system;

the connecting piece comprises a rod for connecting the top beam or the lift car and a first pulley rotatably arranged at one end of the rod, the middle part of the hoisting rope is wound on the first pulley, and the reserved section and the working section are connected through a detachable rope clamp at a position close to the first pulley.

The beneficial effects of the embodiment are as follows: the connecting piece adopts the pulley structure, makes the connecting piece have higher security, has reduced the cost of connecting piece simultaneously.

In some embodiments, the rope clamp comprises two opposite clamping pieces, the reserved section and the working section penetrate through the two clamping pieces, the two clamping pieces are fastened through bolts and nuts, the bolts penetrate through the two clamping pieces and penetrate through the reserved section and the working section, and the two sides of the rope clamp are provided with limiting parts.

In some embodiments, the elevator system further comprises a guide system including a pair of car guide rails slidably fitted on both sides of the car and fixed to an inner wall of the elevator hoistway in the vertical direction and a pair of counterweight guide rails slidably fitted on both sides of the counterweight and fixed to the inner wall of the elevator hoistway in the vertical direction.

In some embodiments, the connecting piece is fixed on the top beam, the top of the lift car is provided with a second pulley, the counterweight is provided with a third pulley, the working section is wound on the second pulley and the third pulley, the other end of the working section is connected with the top beam, and the working section between the lift car and the counterweight is wound on the traction machine and the guide wheel.

In some embodiments, the connecting member is fixed to the top of the car, the other end of the working section is connected to the counterweight, and the working section between the car and the counterweight is wound around the traction machine and the guide pulley.

In some embodiments, the traction machine is disposed at an upper or lower end of an elevator hoistway.

In some embodiments, the working section is wound or rewound in a 2:1 manner, and the middle part of the hoisting rope is connected with the top beam; or the working sections are wound or rewound in a 1:1 mode, and the middle part of the hoisting rope is connected with the car.

In some embodiments, the connecting member further comprises a lock nut disposed on the rod and a spring disposed between the first pulley and the lock nut, the spring having washers disposed at both ends thereof and a spacer disposed between the washer and the lock nut.

Drawings

Fig. 1 is a schematic view of a construction hoist according to an embodiment of the present invention installed in an elevator shaft.

Fig. 2 is a partially enlarged view of a portion of the hoist rope of the construction hoist shown in fig. 1, which is connected to the girder.

Fig. 3 is a schematic view of a construction hoist according to another embodiment of the present invention installed in an elevator shaft.

Fig. 4 is a front view of a coupling member in a construction hoist according to an embodiment of the present invention.

Fig. 5 is a side view of a link in a construction hoist according to an embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of a rope clamp in a construction hoist according to an embodiment of the present invention.

Description of the symbols:

elevator shaft 1, top beam 2, hoisting rope 3, car 4, counterweight 5, guide wheel 6, hoisting machine 7, reserved section 8, working section 9, first pulley 10, rope clamp 11, second pulley 12, clamping piece 13, bolt 14, nut 15, limiting part 16, third pulley 17, connecting piece 18, rod 19, lock nut 20, spring 21, washer 22, gasket 23, limiting pin 24, channel 25

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The construction hoist of the present invention can be installed in an elevator shaft 1 of a building as a construction hoist. With the elevator shaft 1 of the existing building under construction, the construction hoist of the present invention reduces the risk of hoist operation compared to the conventional outdoor construction hoist.

Referring to fig. 1, according to some embodiments, a construction elevator includes a top sill 2, a hoist rope 3, a car 4, a counterweight 5, and a traction machine 7. The top sill 2 is arranged transversely to the upper end of the elevator shaft 1, for example, the top sill 2 can be attached to the wall of the elevator shaft 1. The central part of the hoisting rope 3 is releasably connected with a connecting piece 18 arranged on the top beam 2, so that the hoisting rope 3 forms a reserved section 8 and a working section 9 with adjustable length proportion. Wherein, the reserved section 8 can be coiled or wound on the roller and then arranged on the top beam 2. By releasing the hoisting ropes 3, the length ratio of the two is changed, for example, the length of the reserve section 8 can be shortened and the length of the working section 9 can be extended. The working section 9 forms a hoisting system in cooperation with the car 4, the counterweight 5, and the hoisting machine 7 disposed in the elevator shaft 1. The traction system also comprises a guide wheel 6 arranged according to the requirement or a guide wheel group consisting of a plurality of guide wheels. The hoisting system lifts and lowers the car 4 by means of the hoisting machine 7 and the working section 9, causing the car 4 to be raised and lowered in the elevator shaft 1 for transporting people, materials, tools, etc. between floors of different heights. Every time the construction of a certain floor is completed, the installation position of the top sill 2 is raised by one floor and the length of the working section 9 is extended to increase the maximum liftable height of the elevator.

Referring to fig. 3, according to another embodiment, the construction hoist includes a top sill 2, a hoist rope 3, a car 4, a counterweight 5, a guide sheave 6, and a traction machine 7. The upper beam 2 is arranged at the upper end of the elevator shaft 1, for example, the upper beam 2 may be attached to the wall of the elevator shaft 1. The hoisting rope 3 is releasably connected in its middle part to a connecting element 18 arranged on the car 4, so that the hoisting rope 3 forms a reserve section 8 and a working section 9 with adjustable length ratios. Wherein the reserve section 8 can be coiled or wound and then arranged on the top of the car 4. By releasing the hoisting ropes 3, the length ratio of the two is changed, for example, the length of the reserve section 8 can be shortened and the length of the working section 9 can be extended. The working section 9 forms a hoisting system in cooperation with the car 4, the counterweight 5, and the hoisting machine 7 disposed in the elevator shaft 1. The traction system also comprises a guide wheel 6 arranged according to requirements or a guide wheel group consisting of a plurality of guide wheels. The hoisting system lifts and lowers the car 4 by the hoisting machine 7, and lifts and lowers the car 4 in the elevator shaft 1 to transport people, materials, tools, and the like between floors of different heights. Every time the construction of a certain floor is completed, the installation position of the top sill 2 is raised by one floor and the length of the working section 9 is extended to increase the maximum liftable height of the elevator.

According to some embodiments, referring to fig. 4 and 5, the connecting member 18 comprises a rod 19 for connecting the top beam 2 or the car 4 and a rotatable first sheave 10 provided at one end of the rod 19. Specifically, the rod 19 is provided with a lock nut 20, a spring 21 is fitted between the lock nut 20 and the first pulley 10, and washers 22 are provided at both ends of the spring 21. In the embodiment in which the connecting element 18 is connected to the girder 2, see fig. 2, the rod 19 is passed through the girder, the first pulley 10 is held below the girder, the spring 21 for damping is held above the girder 2, and the connecting element 18 is fastened to the girder 2 from the upper end of the rod 19 by means of the lock nut 20. Between the lock nut 20 and the washer 22 there is a washer 23. The locking nuts 20 are at least two, and the upper end of the rod 19 is also provided with a limit pin 24 to ensure that the connection and the installation are firm. When the hoisting ropes 3 are engaged with the connecting element 18, the hoisting ropes 3 are passed through the passage 25 (as shown in fig. 5) between the first sheave 10 and the rod 19, wound around the first sheave 10, and locked by the rope clamp, and the portions of the hoisting ropes 3 participating in the middle connection are restrained in the passage 25. In the embodiment where the connecting member 18 is connected to the roof beam 2, the connecting member 18 is similarly mounted, and the rod 19 is connected to the car 4, holding the first sheave 10 above the car 4.

According to some embodiments, referring to fig. 1 and 3, the hoisting rope 3 is wound around the first sheave 10 in the middle and the reserved section 8 and the active section 9 are connected by a detachable rope clamp 11 near the first sheave 10. Wherein the part of the hoisting ropes 3 on one side of the first sheave 10 is the reserve section 8 and the part of the hoisting ropes 3 on the other side is the working section 9. When the rope clamp 11 is loosened or disassembled, the length proportion of the reserved section 8 and the working section 9 can be freely adjusted. In the embodiment where the connecting element 18 connects the girder 2, the rope clamp 11 is arranged below the first pulley 10. In the embodiment in which the connecting element 18 connects the car 4, the rope clamp 11 is arranged above the first pulley 10.

In the embodiment of connecting the hoisting rope 3 to the top beam 2 at the middle part, referring to fig. 1, the other end of the working section 9 is connected to the top beam 2, the top of the car 4 is provided with the second pulley 12, the counterweight 5 is provided with the third pulley 17, the working section 9 is wound on the second pulley 12 and the third pulley 17, and the working section 9 between the car 4 and the counterweight 5 is wound on the traction sheave and the guide sheave 6/guide sheave group of the traction machine 7. In the embodiment where the hoisting rope 3 is releasably connected to the girder 2 in the middle, the active section 9 of the hoisting rope 3 is wound in a 2:1 manner. Chinese patents nos. ZL2019214711416, ZL201921471144X, ZL2019214605703 and ZL2019214844047 describe 2:1 winding methods, and the winding methods of these patents are incorporated herein.

In the embodiment in which the car 4 is connected to the middle of the hoist rope 3, referring to fig. 3, one end of the working section 9 is connected to the second sheave 12 and the other end is connected to the counterweight 5, and the working section 9 between the car 4 and the counterweight 5 is wound around the traction sheave of the traction machine 7 and the guide sheave 6/guide sheave group. In the embodiment in which the hoisting ropes 3 are connected to the car 4 in the middle, the working section 9 is wound in a 1:1 manner. Chinese patents with patent numbers ZL2019214705824, ZL2019214408137 and ZL2019214374906 describe winding methods of 1:1, and the winding methods of the patents are incorporated herein.

According to some embodiments, the working section 9 can be wound around or rewound on the traction sheave of the hoisting machine 7. Chinese patents nos. ZL2019214705824, ZL2019214844047 and ZL2019214711416 describe rewinding methods, and the rewinding schemes of these patents are incorporated herein.

According to some embodiments, the hoisting machine 7 may be disposed at the upper end of the elevator shaft 1 or at the lower end of the elevator shaft 1. Chinese patents ZL2019214705824, ZL2019214408137, ZL2019214711416 and ZL201921471144X respectively describe a tractor 7 overhead type, and the position schemes of the tractor 7 of these patents are incorporated herein. Chinese patents No. ZL2019214605703, ZL2019214844047 and ZL2019214374906 describe the lower-mounted type of the hoisting machine 7, and the location schemes of the hoisting machine 7 of these patents are incorporated herein.

According to some embodiments, a guide system is further included, which comprises a pair of car guide rails (not shown in the drawings) slidably fitted on both sides of the car 4 and fixed to the inner wall of the elevator shaft 1 in the vertical direction, and a pair of counterweight guide rails (not shown in the drawings) slidably fitted on both sides of the counterweight and fixed to the inner wall of the elevator shaft 1 in the vertical direction. The guide system limits the freedom of movement of the cage and the counterweight, so that the cage and the counterweight can only move up and down along the respective guide rails and are stable and do not deflect in movement.

According to some embodiments, referring to fig. 6, the rope clamp 11 includes two opposite clamping pieces 13, the reserved section 8 and the working section 9 pass through between the two clamping pieces 13, the two clamping pieces 13 are fastened with nuts 15 through bolts 14, the bolts 14 pass through the two clamping pieces 13 and pass through between the reserved section 8 and the working section 9, and both sides of the rope clamp 11 have limiting parts 16. The two clamping pieces 13, the limiting parts 16 on the two sides and the bolt 14 are matched to form two rope penetrating channels, and after the hoisting rope 3 winds around the pulley, the reserved section 8 and the working section 9 of the hoisting rope respectively penetrate through the two rope penetrating channels. The bolt 14 is locked with the nut 15, so that the reserved section 8 and the working section 9 are clamped by the two clamping pieces 13, and meanwhile, the reserved section 8 and the working section 9 cannot be separated from the rope clamp 11 under the limitation of the limiting part 16, thereby ensuring the safety of the middle connection of the hauling rope 3.

What has been described above are merely some of the embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. The construction elevator is arranged in an elevator shaft of a built building and used as a construction elevator, and is characterized by comprising a top beam, a hoisting rope and a lift car arranged in the elevator shaft, wherein the top beam is arranged at the upper end of the elevator shaft, the middle part of the hoisting rope is releasably connected with a connecting piece arranged on the top beam or the lift car, so that the hoisting rope forms a reserved section and a working section with adjustable length proportion, and the working section is matched with the lift car, a balance weight and the hoisting machine arranged in the elevator shaft to form a hoisting system;

the connecting piece comprises a rod for connecting the top beam or the lift car and a first pulley rotatably arranged at one end of the rod, the middle part of the hoisting rope is wound on the first pulley, and the reserved section is connected with the working section at a position close to the first pulley through a detachable rope clamp.

2. The construction elevator according to claim 1, wherein the rope clamp comprises two opposite clamping pieces, the reserved section and the working section pass through between the two clamping pieces, the two clamping pieces are fastened by a bolt and a nut, the bolt passes through the two clamping pieces and passes through between the reserved section and the working section, and both sides of the rope clamp are provided with limiting parts.

3. The construction hoist according to claim 1 or 2, further comprising a guide system including a pair of car guide rails slidably fitted on both sides of the car and fixed on an inner wall of an elevator hoistway in a vertical direction and a pair of counterweight guide rails slidably fitted on both sides of the counterweight and fixed on an inner wall of an elevator hoistway in a vertical direction.

4. The construction hoist according to claim 1 or 2, wherein the connecting member is fixed to the head beam, a second pulley is provided on a top of the cage, a third pulley is provided on the counterweight, the working section is wound around the second pulley and the third pulley, the other end of the working section is connected to the head beam, the traction system includes a guide pulley, and the working section between the cage and the counterweight is wound around the traction machine and the guide pulley.

5. The construction elevator according to claim 1 or 2, wherein the connecting member is fixed to the top of the car, the other end of the working section is connected to the counterweight, the traction system comprises a guide pulley, and the working section between the car and the counterweight is wound around the traction machine and the guide pulley.

6. The construction hoist according to claim 1 or 2, wherein the traction machine is provided at an upper end or a lower end of the elevator shaft.

7. The construction hoist as claimed in claim 1 or 2, wherein the working section is wound or rewound in a 2:1 manner, and the hoisting rope is connected at its middle portion to the girder; or the working sections are wound or rewound in a 1:1 mode, and the middle part of the hoisting rope is connected with the car.

8. The construction hoist as claimed in claim 1 or 2, wherein the connection member further includes a lock nut provided on the rod and a spring provided between the first pulley and the lock nut, washers are provided at both ends of the spring, and a spacer is provided between the washer and the lock nut.