Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Elevator pit ladder
The invention discloses an elevator pit ladder. The elevator pit ladder comprises two ladder boundary beams in vertically parallel arrangement, a plurality of parallel ladder transverse rods are rotatably connected between the two ladder boundary beams, and the two ladder boundary beams include one moving boundary beam and one fixed boundary beam fixed onto the wall of a hoistway. The wall of the hoistway is fixedly provided with a clamping groove for supporting the moving boundary beam. The elevator pit ladder has an unfolded state and a folded state; when the elevator pit ladder is in the unfolded state, the moving boundary beam is away from the fixed boundary beam and supported on the clamping groove; when the elevator pit ladder is in the folded state, the moving boundary beam rotates upwards along the ladder transverse rods to be put together with the fixed boundary beam. A switch which enables an elevator to stop for maintenance after being triggered is arranged on the clamping groove, and the switch is abutted against the moving boundary beam to be triggered when the elevator pit ladder is in the unfolded state. The elevator pit ladder has the advantages that freedom in switching between the unfolded state and the folded state of the ladder is realized, space of the hoistway is greatly saved, and convenience in operation, safety and reliability are achieved.
Elevator pit ladder
The invention discloses an elevator pit ladder. The elevator pit ladder comprises two ladder boundary beams in vertically parallel arrangement, a plurality of parallel ladder transverse rods are rotatably connected between the two ladder boundary beams, and the two ladder boundary beams include one moving boundary beam and one fixed boundary beam fixed onto the wall of a hoistway. The wall of the hoistway is fixedly provided with a clamping groove for supporting the moving boundary beam. The elevator pit ladder has an unfolded state and a folded state; when the elevator pit ladder is in the unfolded state, the moving boundary beam is away from the fixed boundary beam and supported on the clamping groove; when the elevator pit ladder is in the folded state, the moving boundary beam rotates upwards along the ladder transverse rods to be put together with the fixed boundary beam. A switch which enables an elevator to stop for maintenance after being triggered is arranged on the clamping groove, and the switch is abutted against the moving boundary beam to be triggered when the elevator pit ladder is in the unfolded state. The elevator pit ladder has the advantages that freedom in switching between the unfolded state and the folded state of the ladder is realized, space of the hoistway is greatly saved, and convenience in operation, safety and reliability are achieved.
Elevator pit ladder
CHEN YEXIANG (Autor:in) / ZHU WEIHUA (Autor:in)
05.08.2015
Patent
Elektronische Ressource
Englisch
IPC:
E06C
LADDERS
,
Leitern