A mechanical linkage secondary lock
A secondary lock and mechanical technology, applied in the field of mechanical locks, can solve the problems of poor safety and anti-theft, inconvenient operation, etc., and achieve the effect of good safety and anti-theft performance and reliable fixation
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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] The mechanical linkage secondary lock of the embodiment comprises a lock housing 1 and an upper pull rod 21 and a lower pull rod 22 installed on the lock housing 1 ( figure 1 not shown in), a pull rod driving mechanism and a pull rod fixing mechanism, the upper pull rod 21 is connected with the upper latch 23, the lower pull rod 22 is connected with the lower latch 24, and there is a lock bolt ( (not shown in the figure) cavity 25, the pull rod driving mechanism is used to drive the upper pull rod 21 and the lower pull rod 22 to open and close longitudinally at the same time, the pull rod fixing mechanism is used to fix the opened upper pull rod 21 and the lower pull rod 22, the pull rod drive mechanism includes the same The driving wheel driven block 31, the driving wheel sheet 32, the driving wheel 33 and the first driving gear 34 arr...
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