| 1. | Design an instantaneous safety anti - falling device associate with the construction hoist , which make use of wedge block for brake . this safety anti - falling device have high sensitivity , good reliability , simple configuration 该安全防坠器采用了楔块式制动,灵敏度高、可靠性好、结构简单、便于安装调试,能够有效地防止吊笼坠落事故的发生。 |