Composite Coded Lock for Bags with Segmented Hooks
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Solution Overview
Problem
Current bag locks are either vulnerable to theft due to limited securing mechanisms or require users to remember passwords, which can lead to forgotten codes and potential damage when forced unlocking.
Innovation Solution
A composite coded lock for bags that integrates a central lock hook and side lock hooks, allowing for secure engagement with a key or password, featuring a locking device with a rotatable lock core and controlled lock blade, a clamping device, and a linkage system to enhance usability and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a coded lock is used for bags, then convenience is improved (no key required), but reliability deteriorates (user may forget password leading to forced unlocking and damage)
Solution Approach 1:
The lock system is segmented into two independent locking mechanisms: a coded lock portion and a key lock portion. Each portion can independently secure the bag, so if the user forgets the password, the key can still be used to open the bag without forcing the lock open and causing damage.
Solution Approach 2:
The lock system provides multiple parameter options for unlocking: either enter the correct password on the coded lock or insert and turn the key in the key lock. This parameter change allows users to switch between different unlocking methods based on their situation.
2Device complexity
If only one central lock hook is used, then ease of operation is improved (simpler structure), but reliability deteriorates (bag can be easily pried open)
Solution Approach 1:
The single central lock hook is segmented into multiple lock hooks: one central lock hook positioned in the middle of the bag and at least one side lock hook positioned at the side of the bag. This segmentation distributes the securing points, making it much harder for thieves to pry open the bag while maintaining relatively simple structure.
3Reliability
If multiple side lock hooks are added to prevent prying, then reliability is improved (better security), but device complexity increases (more components)
Solution Approach 1:
The side lock hook mechanism is merged with the central lock hook mechanism through a shared control system. The lock blade in the coded lock and the lock core in the key lock both control the same locking/unlocking action across all lock hooks, reducing the need for separate complex control mechanisms for each hook.
Solution Approach 2:
The locking mechanism is designed with multi-functionality: the same coded lock and key lock can control both the central lock hook and side lock hooks. This universal control system allows one locking mechanism to serve multiple securing functions, reducing overall device complexity.
4Adaptability or versatility
If the bag is made larger to carry more items, then adaptability is improved (more carrying capacity), but reliability deteriorates (easier to pry open at multiple points)
Solution Approach 1:
As the bag size increases, additional side lock hooks are added at different positions along the bag. This segmentation of securing points along the length of the bag prevents thieves from prying open large sections of the bag, maintaining security even as carrying capacity increases.
Data Source
AI summary
The invention relates a composite coded lock for a bag, said lock comprises a central lock hook in the middle, at least one side lock hook, a bottom shell, a locking device, a clamping device and a linkage, wherein the locking device is fixed on a casing and has a key lock and a coded lock; the coded lock has a controlled lock blade which has a limiting portion; the limiting portion is controlled by the key lock and the coded lock to move between an unlocking position and a locking position; the clamping device has a clamping pedestal fixed on one side of the bottom shell; the clamping pedestal is provided with a locking piece clamped with the side lock hook and a push and control block used for controlling the movement of the locking piece; the linkage is arranged on the bottom shell.