The invention discloses a safety type hydraulic elevator. The safety type hydraulic elevator comprises a valve bank circuit, wherein two ends of the valve bank circuit are connected with a first power end and a second power end respectively; the valve bank circuit is divided into three parallel circuits comprising an uplink valve circuit, a downlink valve circuit and an acceleration valve circuit; a downlink valve relay contact on the downlink valve circuit is tapped in parallel with a low-pressure downlink emergency circuit; the low-pressure downlink emergency circuit is connected in series with a first protection relay, a flat layer relay and a third power end in sequence through the downlink valve relay contact; the second power end is also connected in series with an emergency control circuit which is used for controlling a low-pressure downlink circuit. When the power is cut off or the elevator has failure during running, passengers are extremely possibly trapped in the car; as long as the trapped passengers touch the emergency device, the elevator is capable of safely carrying the passengers to the flat layer safety area, enabling the trapped passengers to get rid of the trouble and avoiding the injury to the personal safety of the passengers.
Safety type hydraulic elevator
2016-01-20
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |