Key Mechanism

摘要

A key mechanism comprises a rack and an external force key member, the lower part of the rack disposed with a transmission pinion on one side and ratchet means on the other side. The ratchet means comprises a first ratchet and a second ratchet arranged consecutively to one another from the top down. The rack is provided with a first step and a second step arranged consecutively to one another from the top down. An elastic retaining member is mounted on the ratchet-side of the rack, and a rack returning spring and key returning spring are respectively mounted on the rack and the external force key member. The elastic retaining member is brought into clamp connection with the first or second ratchet in the lower part under the press action on the external force key member. The key mechanism increases the range of possible password settings of the code lock.

主权项

1. A key mechanism for use in a key-type code lock, the key mechanism comprising:
a rack and an external force key member; a lower part of the rack is disposed with a transmission pinion on a first side and ratchet means on a second side; the ratchet means comprising a first ratchet and a second ratchet arranged consecutively to one another from the top down; the rack is provided with a first step and a second step arranged consecutively to one another from the top down; an elastic retaining member is positioned on the second side of the rack; a rack returning spring and a key returning spring are mounted on the rack and the external force key member respectively; wherein the elastic retaining member is brought into clamp connection with the first ratchet or the second ratchet in the lower part of the rack under a press action on the external force key member.