Building under construction

Abstract

A building under construction comprises a construction hoist arranged beside the building under construction. The construction hoist comprises a guide rail bracket and an elevator. The construction hoist is provided with a descending prevention system which comprises a rope grasping device and a security rope. The rope grasping device is fixedly mounted on the elevator of the building hoist, and one side of the security rope extends out of a descent control device or a reducer or a spring mechanism or a damper or a fixed end. The security rope includes a section arranged in a manner of extending from the upper side of the elevator to the lower side of the elevator and is fixed at the proper position under the elevator, and the security rope can be fastened through the rope grasping device.

Description

technical field [0001] The invention belongs to the field of construction in progress. Background technique [0002] At present, construction safety problems of buildings under construction frequently occur. The main project of the building under construction must be combined with the construction elevator during the construction process. The construction elevator is the guide rail frame of the construction elevator. It is used for vertical transportation during construction. It is a dual-purpose elevator for carrying people and materials. It is also called an external elevator because it is attached to the outside of the main body of the building. In recent years, the use of elevators in high-rise buildings has become more and more common. However, due to the gap between product safety performance and general manned elevators, the working environment at the construction site is poor, the safety management of the construction unit is not in place, and the safety supervision ...

AI Technical Summary

Problems solved by technology

In recent years, the use of elevators in high-rise buildings has become more and more common. However, due to the gap between product safety performance and general passenger elevators, the working environment at the construction site is poor, the safety management of the construction unit is not in place, and the safety supervision ability of the supervisory unit Insufficient, resulting in equipment often have major safety hazards

As for the construction elevator, it is the only vertical transportation equipment that can carry people on the construction site. Improper safety management may cause the ladder cage (also known as the car) to fall, resulting in mass death and mass injury accidents.

The reasons for the falling of the elevator cage of the construction elevator include: 1. After the guide rail frame was raised, the stopper of the upper limit travel switch and the upper stopper of the limit switch were not installed in time. The connecting bolts of the standard section of the guide rail frame above the wall point are damaged, and the guide rail frame breaks and falls from a high place; 2. The anti-fall device fails. The anti-drop safety device is an important part of the construction elevator, and it is necessary to rely on it to eliminate the ladder cage fall accident However, due to various reasons, the anti-fall device often cannot work and cause safety accidents. At present, there are no other anti-fall safety measures on the construction elevator.

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