Deadbolt Lock Reinforced by Recessed Fixing Members
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Solution Overview
Problem
Conventional deadbolt locks are vulnerable to unauthorized access when the outer cover is broken, as the lock cylinder can be removed and picked, compromising the protection feature.
Innovation Solution
The deadbolt lock incorporates a protective member with recessed fixing members within a covered area, reinforced by bolts and an anti-break member, which supports the protective member and outer cover to prevent damage and shifting, enhancing safety and anti-theft features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer cover is made simple and accessible, then the ease of manufacture and operation is improved, but the lock becomes vulnerable to breaking and unauthorized access
Solution Approach 1:
The patent implements a nested structure where the lock cylinder is positioned within a recessed cavity in the protective member, which itself is mounted on the positioning member. The outer cover encloses this nested arrangement. This nesting provides multiple layers of protection, making it difficult for attackers to directly access or remove the lock cylinder even if the outer cover is compromised.
Solution Approach 2:
The patent employs a composite structure combining multiple materials and components: the protective member (which can be metal or high-strength plastic), the positioning member with fixing members (bolts or rivets), the outer cover, and the lock cylinder. This composite construction enhances overall strength and resistance to breaking while maintaining manufacturability through standardized components.
2Strength
If fixing members are added to reinforce the protective member, then the strength and anti-theft capability are improved, but the device complexity increases
Solution Approach 1:
The patent applies fixing members (bolts or rivets) at specific critical locations where the protective member is mounted to the positioning member, rather than uniformly across the entire structure. The anti-break member is strategically positioned to reinforce areas most susceptible to breaking. This localized reinforcement approach provides maximum strength where needed while minimizing overall complexity.
3Ease of operation
If the lock cylinder is made detachable with keyhole, then the ease of operation is improved, but the vulnerability to unauthorized access increases
Solution Approach 1:
The patent implements preliminary protective measures by positioning the lock cylinder within a recessed cavity and enclosing it with an outer cover that has restricted access. The anti-break member is pre-installed to prevent breaking attempts before they can compromise the lock cylinder. This preliminary anti-action makes unauthorized access difficult even though the cylinder remains detachable for legitimate use.
Data Source
AI summary
A deadbolt lock includes a positioning member mounted to a lock part. A protective member includes a recess formed in one side thereof and is mounted to the lock part and the positioning member. A covered area is formed between the positioning member and the protective member. At least one fixing member is connected to the positioning member and located within the covered area. An outer cover is mounted to the protective member and the positioning member. The at least one fixing member is compact in size to reinforce the protective member to reduce manufacturing cost. The protective member and the outer cover are not damaged by impact from outside of the deadbolt lock to enhance safety features of the deadbolt lock.