The invention discloses a device for preventing an elevator car from moving accidentally. The device comprises a safety gear and an intermittent transmission mechanism for driving separation and reunion of the safety gear through a car door, wherein the safety gear comprises safety gear bodies whose front sides are open and clamped on guide rails; each safety gear body comprises an inner casing arranged in an inner cavity of a casing, a rectangular opening is formed in the rear wall of the casing, a horizontal pipe cavity extending out of the rectangular opening is formed in the inner casing, a horizontal locating screw for locating the inner casing is arranged on the left side of the casing, a first horizontal movable screw with one end fixedly connected in the inner side wall of the inner casing is arranged on the right side of the casing, and a first elastic piece located between the inner casing and the casing is arranged on the first horizontal movable screw. The device has the advantages as follows: linkage with the car door is realized, serious safety accidents caused by accidental moving of the elevator car are completely eradicated, and the accidental moving distance of the elevator car is shortened effectively due to absence of a speed detection and feedback process.
Device for preventing elevator car from moving accidentally
2015-10-28
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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