Title:
PASSWORD RECOVERY DEVICE FOR COMBINATION LOCK
Document Type and Number:
WIPO Patent Application WO/2023/216689
Kind Code:
A1
Abstract:
The present utility model relates to the technical field of combination locks, relates to a password recovery device for a combination lock, and overcomes the defect that existing combination locks cannot be opened when passwords are forgotten and the defect that operations of password recovery are complex. A lock body is comprised; a movable adjustment rod is arranged in the lock body; a small spring is arranged between the adjustment rod and a lock cover; protruding points are arranged on the adjustment rod; a relief slot and a position limiter are arranged in each inner wheel; a lock cylinder is driven to rotate under the rotation of a spare key; the lock cylinder is misplaced and meshed with a protruding block on a dial disk for driving the inner wheel to rotate; the lock body moves relatively under the action of a large spring; the adjustment rod moves inwards under the action of the small spring; the dial disk is rotated to drive the inner wheel to rotate; the protruding points on the adjustment rod are engaged with the position limiters in the inner wheels; in this case, elastic wheels sleeved on the inner wheels do not rotate, and a password displayed outside the elastic wheels is a recovered password. The product of the present utility model is simple to operate, can recover a correct password, and is simple in structure and low in cost.
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Inventors:
TANG REN (CN)
YE ZHIMIN (CN)
YE ZHIMIN (CN)
Application Number:
PCT/CN2023/079702
Publication Date:
November 16, 2023
Filing Date:
March 04, 2023
Export Citation:
Assignee:
WENZHOU JINJIAN INTELLIGENT LOCK CO LTD (CN)
International Classes:
E05B37/02; E05B37/20
Foreign References:
| CN115012735A | 2022-09-06 | |||
| CN217481004U | 2022-09-23 | |||
| CN113153002A | 2021-07-23 | |||
| CN112627639A | 2021-04-09 | |||
| DE10057133A1 | 2002-05-23 |
Attorney, Agent or Firm:
WENZHOU PINCHUANG PATENT AND TRADEMARK AGENCY (GENERAL PARTNERSHIP) et al. (CN)
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