Pointer Combination Lock Layout for Intuitive High-Security Codes
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Solution Overview
Problem
Existing combination locks, particularly rotary disk type, suffer from issues of weak confidentiality and ease of code cracking, while single-disk type locks have complex code setting and limited code groups, and both types lack intuitive code display and flexible code changing.
Innovation Solution
A pointer type combination lock design using two or more pointers connected to a dial with scale or symbol marks, allowing for intuitive code display and high confidentiality through a series relationship of codes, with the ability to change codes by separating lock discs from drive shafts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multi-disc type combination locks are used, then code setting is simple and intuitive display is achieved, but confidentiality is weak and cracking is easy
Solution Approach 1:
The lock mechanism is segmented into multiple independent lock discs (first lock disc, second lock disc, third lock disc) each with its own drive shaft and pointer. This segmentation allows each disc to be set independently while maintaining overall system simplicity, achieving both ease of operation and high confidentiality through the combined complexity of multiple segments.
Solution Approach 2:
The patent transitions from a single-disk or multi-disc arrangement to a three-dimensional configuration with multiple lock discs stacked vertically, each operating on its own drive shaft. This dimensional change increases the code combination space dramatically (24^3 = 13,824 combinations) while maintaining intuitive display through vertically arranged pointers, thereby enhancing confidentiality without sacrificing ease of operation.
2Reliability
If single-disk type combination locks are used, then confidentiality is high and cracking difficulty is high, but code setting is complex and code display is not intuitive
Solution Approach 1:
The single complex disk is segmented into multiple simpler lock discs (first, second, and third lock discs), each with its own drive shaft and pointer. This segmentation simplifies the code setting process as each disc can be adjusted independently, while the combined complexity of multiple segments maintains high confidentiality and cracking difficulty.
Solution Approach 2:
The patent introduces intermediate drive shafts (first drive shaft, second drive shaft, third drive shaft) that mediate between the turntable and each lock disc. These intermediate shafts with clutch mechanisms allow for simplified code setting operations while transmitting the rotational motion to the lock discs, making the system easier to operate without compromising the security provided by the multiple disc configuration.
3Device complexity
If fixed number of latch holes are used, then structure is simple, but code flexibility is limited and only fixed number of code groups can be replaced
Solution Approach 1:
The patent replaces fixed latch holes with dynamic pointer-based code setting. The pointers can be positioned at any scale mark on the dial, and the code is determined by the pointer positions rather than fixed holes. This dynamic system allows for unlimited code combinations (24^3 = 13,824) while maintaining structural simplicity through the use of standard dial and pointer components.
Solution Approach 2:
The system changes from a discrete, fixed-parameter code setting (fixed latch holes) to a continuous, variable-parameter system where pointers can be positioned at any scale mark. This parameter change enables flexible code customization without increasing structural complexity, as the same dial and pointer structure supports both fixed and variable code configurations.
Data Source
AI summary
The invention relates to a pointer type combination lock box and a pointer type combination lock, which can be applied to bags, doors, safe boxes and other products. The invention adopts the following technical proposal: two or more pointers are used to match with a dial, a plurality of pointers point to combined display codes of scale marks and/or symbol marks on the dial; the invention has the following beneficial effects: due to the use of pointers with the dial, the pointers point to the combined display codes of scale marks and/or symbol marks on the dial, the combinatorial number of the codes forms a series relationship with the number of pointers, a plurality of groups of codes can be combined, the combinatorial number is increased by an order of magnitudes for each increase of a pointer, the codes are displayed intuitively, and has high confidentiality and high cracking difficulty.