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Mechanical combination lock with clutch

A mechanical combination lock with a clutch technology, applied in the field of combination locks, to achieve the effects of easy promotion, low cost and simple structure

Inactive Publication Date: 2014-08-27
孙滋生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mechanical combination lock of the prior art has a feeling when the combination wheel rotates, so it is easy to be cracked by professionals, that is, cracked by so-called technical lock unlocking personnel.

Method used

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  • Mechanical combination lock with clutch
  • Mechanical combination lock with clutch
  • Mechanical combination lock with clutch

Examples

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Embodiment Construction

[0024] The mechanical combination lock with clutch comprises code shaft 7, driving wheel 4, several driven wheels 2, code shaft fixed disk 19, hollow driven wheel shaft 3 and dead bolt 16, and code word disk 20 is fixed on code shaft 7, and driven wheel 2 is set on the hollow driven wheel shaft 3, and also includes a "[" shaped box 25, the hollow driven wheel shaft 3 is fixed on the inner side of the bottom wall of the "[" shaped box 25, and on the bottom wall of the "[" shaped box 25 There is a shaft hole with the same hollow diameter as the hollow driven wheel shaft 3, and a hollow driving shaft 23 with a polygonal inner hole cross section is arranged in the shaft hole, and the left end of the driving shaft 23 has an outer flange, and the outer flange is in the position of "[" Outside the bottom wall of the box body 25, the right end of the driving shaft 23 has an external thread, and the driving wheel 4 is fixed on the right end of the driving shaft 23 by a large nut 9, betw...

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PUM

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Abstract

A mechanical combination lock comprises a code shaft, a drive wheel, a plurality of driven wheels, a code shaft fixing disc, a hollow driven-wheel shaft and a bolt. Code discs are fixed on the code shaft. The driven-wheel shafts are fixed on the inner side of the bottom wall of an 'n'-shaped box. The left end of a drive shaft is provide with an outer protruding edge which is exposed from the bottom wall of the 'n'-shaped box. The right end of the drive shaft is provided with an external thread. The drive wheel is fixed at the right end of the drive shaft through a large nut. A drive gear is fixed on the right side of the drive wheel. A clutch bar is arranged in a stepped hole of the code shaft. A 'T'-shaped slide plate with a lateral shaft is fixed to the right end of the clutch bar through a nut set. A slide way matching with the 'T'-shaped slide plate is arranged at the top of the box. An 'L'-shaped bolt plate is arranged in the box through a hinge. A clutch slider is arranged on the 'L'-shaped bolt plate. The 'T'-shaped slide plate is provided with a clutch slide way. A driven gear matching with the drive gear is sleeved on the lateral shaft. The drive gear is provided with a gear notch, and a chord of the gear notch is close to the lower surface of the 'T'-shaped slide plate.

Description

technical field [0001] The invention relates to a coded lock, in particular to a mechanical coded lock with a clutch which is suitable for confidential places such as vault doors, safes, ATM teller machines and the like. Background technique [0002] The mechanical combination lock of present prior art, because there is feeling when combination wheel rotates, so be easy to be cracked by so-called technical lock unlocking personnel by professional's cracking password. Therefore, designing a kind of mechanical combination lock with clutch that can greatly reduce the possibility of technology unlocking is a technical problem to be solved at present. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-cost mechanical combination lock with a clutch that can greatly reduce the possibility of technical unlocking. [0004] The technical scheme that the present invention solves its technical problem is: [0005] A me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B37/20E05B15/00
Inventor 孙滋生
Owner 孙滋生