Lock core dialing mechanism for mechanical combination lock

Abstract

The invention discloses a lock core dialing mechanism for a mechanical combination lock, which comprises a main shaft, a dialing shaft, an inner shaft, lamellar shifting sheets all formed by punching plate materials, a control sheet, a sleeve, a pawl, an isolating sheet, dialing sheets, a sheet spring and gaskets, wherein the main shaft is movably connected with the inner shaft through the dialing shaft; the inner shaft is penetrably connected with the shifting sheets, a plurality of annular gaskets and the control sheet sequentially; the inner shaft among the annular gaskets is penetrably connected with the semi-circular isolating sheet which has the same radius as that of the gaskets; the shifting sheets, the gaskets, the isolating sheet and the control sheet are in interference fit with the inner shaft and tightly riveted through mutually corresponding riveting holes; the dialing sheets are arranged among the gaskets through pin shafts; the upper part of the head end of each dialing sheet is provided with a dialing table corresponding to a strip-shaped trough hole arranged on the circumference of the sleeve; and the sheet spring is arranged between the rear parts of the dialingsheets and the isolating sheet. The lock core dialing mechanism processed by adopting a stacking manner has the advantages of simplicity for part processing, convenience for assembly and debugging, simple processing technology and low manufacture cost.

Description

technical field [0001] The invention relates to a mechanical combination lock, in particular to a dialing mechanism of a combination dial on a mechanical combination lock. Background technique [0002] Now mechanical combination locks have been widely used in safes, file cabinets, safety doors, silver vault doors, and even in families. Most of the basic working principles are the same. A dial with a scale is set on the outside of the door. The dial of the high-grade rotary mechanical combination lock is also used as an unlocking handle. There are several discs with notches arranged on the mandrel set on the inner side. The main shaft of the dial is inserted into the inner side of the door and fixedly connected with the mandrel. Then the dial outside the door is turned, and the main shaft of the dial drives the discs to rotate sequentially. When the gaps of the discs are all aligned with the unlocking pin plate of the unbolting mechanism, and the unlocking pin plate moves do...

AI Technical Summary

Problems solved by technology

When the dial is impacted by a small force outside the lock body, the main shaft will push the structural frame to produce axial displacement, resulting in a corresponding axial movement of the dial block, and the dial block cannot correspond to the code disc one by one. The lock cylinder dialing mechanism also does not work properly

Therefore, the impact resistance of the patented lock cylinder dialing mechanism is very weak

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