Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Over-speed stop mechanism and lifting scaffold
The invention provides an over-speed stop mechanism. The over-speed stop mechanism comprises a stop road wheel, a stop ejector pin, a stop beam and a stop road wheel drive device, wherein the stop road wheel drive device and the stop ejector pin are separately arranged at the two sides of the stop road wheel; while the stop road wheel drive device moves, the stop road wheel drive device can drivethe stop road wheel to rotate, and the stop road wheel can drive the stop ejector pin to rotate; while the stop road wheel drive device moves in a first direction and moves at constant speed in a second direction, the stop ejector pin does not limit rotation of the stop road wheel; and while the stop road wheel drive device moves at speed exceeding predetermined speed in the second direction, thestop ejector pin automatically returns to a locking state. The mechanism solves potential safety hazards due to the fact that spring rust and corrosion resistance is poor and elastic fatigue is liableto occur after use throughout the year, and avoids manpower resource waste caused by daily checking and replacing a spring. Compared with spring return, the over-speed stop mechanism improves triggersensitivity. Moreover, the over-speed stop mechanism is simple, firm and reliable in structure, is strong is rust and corrosion resistance, and greatly reduces a fault rate.
本发明提供了一种过速止动机构，包括止动行轮、止动顶针、止动梁和止动行轮驱动装置；止动行轮驱动装置和止动顶针分别设置在止动行轮的两侧，且止动行轮驱动装置移动时，止动行轮驱动装置能够带动止动行轮转动，止动行轮能够带动止动顶针转动，当止动行轮驱动装置沿第一方向移动时和沿第二方向常速移动时，此时止动顶针不会限制止动行轮的转动；当止动行轮驱动装置沿第二方向超过预定速度移动时，止动顶针自动归于锁止状态。该机构解决了因弹簧抗锈蚀能力差，常年使用易产生弹性疲乏，带来的安全隐患，免去了日常检查、更换弹簧的人力资源浪费。相较弹簧复位来说，提高了触发灵敏度，且结构简单，牢固，可靠，抗锈蚀能力强，大幅度降低了故障率。
Over-speed stop mechanism and lifting scaffold
The invention provides an over-speed stop mechanism. The over-speed stop mechanism comprises a stop road wheel, a stop ejector pin, a stop beam and a stop road wheel drive device, wherein the stop road wheel drive device and the stop ejector pin are separately arranged at the two sides of the stop road wheel; while the stop road wheel drive device moves, the stop road wheel drive device can drivethe stop road wheel to rotate, and the stop road wheel can drive the stop ejector pin to rotate; while the stop road wheel drive device moves in a first direction and moves at constant speed in a second direction, the stop ejector pin does not limit rotation of the stop road wheel; and while the stop road wheel drive device moves at speed exceeding predetermined speed in the second direction, thestop ejector pin automatically returns to a locking state. The mechanism solves potential safety hazards due to the fact that spring rust and corrosion resistance is poor and elastic fatigue is liableto occur after use throughout the year, and avoids manpower resource waste caused by daily checking and replacing a spring. Compared with spring return, the over-speed stop mechanism improves triggersensitivity. Moreover, the over-speed stop mechanism is simple, firm and reliable in structure, is strong is rust and corrosion resistance, and greatly reduces a fault rate.
本发明提供了一种过速止动机构，包括止动行轮、止动顶针、止动梁和止动行轮驱动装置；止动行轮驱动装置和止动顶针分别设置在止动行轮的两侧，且止动行轮驱动装置移动时，止动行轮驱动装置能够带动止动行轮转动，止动行轮能够带动止动顶针转动，当止动行轮驱动装置沿第一方向移动时和沿第二方向常速移动时，此时止动顶针不会限制止动行轮的转动；当止动行轮驱动装置沿第二方向超过预定速度移动时，止动顶针自动归于锁止状态。该机构解决了因弹簧抗锈蚀能力差，常年使用易产生弹性疲乏，带来的安全隐患，免去了日常检查、更换弹簧的人力资源浪费。相较弹簧复位来说，提高了触发灵敏度，且结构简单，牢固，可靠，抗锈蚀能力强，大幅度降低了故障率。
Over-speed stop mechanism and lifting scaffold
一种过速止动机构及升降脚手架
WANG MINJIE (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste