Elevator system for variably buffering damping force

Abstract

The invention discloses an elevator system for variably buffering a damping force. The elevator system comprises an evaluator car body and a buffering assembly, wherein the buffering assembly comprises a buffering member which is fixedly arranged at the bottom of an elevator shaft and is used for preventing the evaluator car body from rigid bottoming; the buffering member comprises a buffering spring arranged on a foundation and a buffering plate for supporting the top of the buffering spring; the buffering plate aligns to the bottom of the evaluator car body and the buffering spring is a pitch variable spring. According to the elevator system, the damping force is gradually increased in a bottoming buffering process of the evaluator car; the increasing process is rapid and gentle when compared with that of a common spring; the smoothness of descending buffering is realized and enough damping force is provided, so that compared with the prior art, a buffering route and a gradually-changed elastic coefficient can be increased, and the technical scheme for automatically adjusting a key performance parameter, namely a spring force, is formed; the elevator system is applicable to a high-speed elevator and has an anytime dynamic application effect, so that the comfort and reliability are effectively improved before the evaluator car reaches the bottom and while the evaluator car is in contact with the buffering member, and the safety performance of an elevator is improved.

Description

technical field [0001] The invention relates to a safety system for special equipment, in particular to a safety system for a box elevator bottoming out. Background technique [0002] The van elevator is a means of transportation for vertical transportation, which is closely related to people's daily life; the existing van elevator is mainly composed of a traction machine, a control cabinet, a car, guide rails, etc., to achieve relatively rapid up and down ; In order to achieve uplink and downlink and install related equipment, elevator shafts will be built in buildings or other places where van elevators are used to achieve smooth operation. [0003] The uplink and downlink of van elevators are generally achieved by mechanical traction, and the structure is relatively complex. Due to problems such as the use environment, cycle, equipment aging, and quality, it will cause the elevator car to fall without restraint or limited restraint, which is more serious. security issues...

AI Technical Summary

Problems solved by technology

[0003] The uplink and downlink of van elevators are generally achieved by mechanical traction, and the structure is relatively complex. Due to problems such as the use environment, cycle, equipment aging, and quality, it will cause the elevator car to fall without restraint or limited restraint, which is more serious. security issues

In the prior art, in order to solve the serious danger to the passengers caused by the car rigidly touching the bottom (directly falling to the bottom of the hoistway), a buffer device is installed at the bottom of the hoistway; the buffer device is a hydraulic buffer for high-speed elevators, and generally adopts The structure of the buffer spring, and this consideration is mainly the relationship between the elastic coefficient of the spring, the stroke and the car. Therefore, high-speed elevators cannot use springs with a large elastic coefficient, otherwise there will be obvious rigid bottoming feeling, resulting in ACCIDENT

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