The invention discloses a cabin door locking device for a deep-sea pressure-resistant shell. The cabin door locking device comprises a cabin door handle and an intra-cabin handle. The intra-cabin handle is fixedly connected with the cabin door handle through a rotary shaft. The side, at the intra-cabin handle, of the rotary shaft is provided with an end cover fixed to a cabin door. The two ends of the rotary shaft are provided with steps respectively. A traction nut is connected to the rotary shaft in a threaded manner and fixedly connected with a siding rail base. The rotary shaft is sleeved with the sliding rail base. The side face of the sliding rail base is evenly provided with at least two grooves. Sliding wheels are arranged in the grooves and arranged at one end of a locking rod. The locking rod is hinged to the cabin door. The other end of the locking rod moves freely. The sliding rail base moves to drive one end of the locking rod to move. The other end of the locking rod is locked to the shell. The cabin door is arranged on the shell through a four-rod device. According to the cabin door locking device, through action of the locking rod, it can be guaranteed that the locking force of the cabin door is balanced, the cabin door is in complete extrusion contact with the shell, finally the cabin door is locked, and operation is reliable.
Cabin door locking device for deep-sea pressure-resistant shell
2016-02-17
Patent
Electronic Resource
English