The invention relates to a scissor-fork self-locking anti-disengaging limiting type lifting appliance which comprises a lifting appliance body, a first lifting piece and a second lifting piece, the first lifting piece and the second lifting piece each comprise a hooking clamping part, a hinging part and an opening and closing part, the hinging parts of the first lifting piece and the second lifting piece are hinged to form a scissor-fork type structure, and the opening and closing parts of the first lifting piece and the second lifting piece are hinged to form a scissor-fork type structure. The hook clamping part is used for extending into a large hole of the furnace bottom and is clamped with a flange at the bottom of the large hole; the self-locking limiting assembly is arranged on the opening and closing part and comprises an active limiting piece installed on the first hanging piece/the second hanging piece and a passive limiting piece installed on the second hanging piece/the first hanging piece and used for being matched with the active limiting piece. And the connection state of the active limiting piece and the passive limiting piece is controlled to lock the relative positions of the first hanging piece and the second hanging piece. The single crystal furnace bottom lifting device has the effects of guaranteeing the safety of single crystal furnace bottom lifting operation and reducing potential safety hazards.
本申请涉及一种剪叉自锁防脱限位式吊具,其包括吊具本体,包括第一吊件和第二吊件,所述第一吊件和所述第二吊件均包括钩挂夹持部、铰接部和开合部,所述第一吊件和所述第二吊件的铰接部铰接形成剪叉式结构,所述钩挂夹持部用于伸入炉底的大孔并与大孔底部的法兰卡合;自锁限位组件,设置在所述开合部上,包括安装在所述第一吊件/第二吊件上的主动限位件以及安装在所述第二吊件/第一吊件上的用于与所述主动限位件配合的被动限位件,控制所述主动限位件与所述被动限位件的连接状态实现所述第一吊件和第二吊件相对位置的锁定。本申请具有保障单晶炉炉底吊装作业的安全,降低安全隐患的效果。
Scissor-fork self-locking anti-falling limiting type lifting appliance
一种剪叉自锁防脱限位式吊具
2024-01-09
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Scissor fork type lifting device control method and scissor fork type lifting device
European Patent Office | 2024
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