Elevator lift door

Through innovative design of frame components and drive mechanisms, the problems of elevator door operation jamming and high maintenance costs under heavy load and large volume requirements have been solved, realizing smooth lifting and lowering of elevator doors and improving safety, and is suitable for a variety of elevator designs.

CN224547828UActive Publication Date: 2026-07-24DONGNAN ELEVATOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGNAN ELEVATOR
Filing Date
2025-08-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing elevator doors suffer from problems such as operational jamming, high maintenance costs, and elevator shaft width limitations when facing heavy loads and large volumes. In particular, the threaded meshing has high friction and is prone to wear, making it difficult to meet the needs of heavy load and large volume elevators.

Method used

The system employs a frame assembly and a drive mechanism, utilizing a drive system composed of a first steel wire rope, a second steel wire rope, and a guide wheel. Through the symmetrical arrangement of the first and second gate guide shoes, the weight and force of the gate are distributed. Combined with a battering bow and limit switches, the movement range of the gate is limited, ensuring smooth lifting and lowering. A hollow structure is also used to reduce the weight of the gate.

Benefits of technology

It enables smooth operation of heavy-duty and large-volume elevator doors, reduces maintenance costs, and improves safety and applicability, making it suitable for elevator designs of different widths and heights.

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Abstract

The utility model relates to an elevator lift door, include: frame component, drive mechanism, including drive motor etc., first steel wire rope one end, second steel wire rope one end all are connected with drive motor, first steel wire rope part is around first guide pulley, second guide pulley, door body component, including first palisade door guide shoe etc., first palisade door guide shoe, second palisade door guide shoe are located palisade door's both sides respectively, first palisade door guide shoe is connected with first door guide rail sliding, second palisade door guide shoe is connected with second door guide rail sliding, the utility model discloses first steel wire rope and second steel wire rope vertical pull palisade door up and down, prevent the palisade door and produce deviation when moving, still do not occupy the space of elevator shaft, can be made into greater width, to meet the demand of big load, big volume elevator. The utility model discloses each component is relatively independent, is convenient for individual maintenance or replacement component, need not to dismantle integral drive mechanism, reduce maintenance cost.
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