Composite Lock with Dual Transmission for Zipper Control
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Solution Overview
Problem
Existing locks are either unable to control zippers uniformly or require all zippers to be unlocked simultaneously, which is inconvenient for transit checking and use.
Innovation Solution
A mechanical composite lock with two groups of locking hooks, a middle transmission mechanism, a lock cylinder device, and a password device that allows for uniform or sequential control of the locking hooks, enabling them to be opened simultaneously or individually depending on the mode of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lock with multiple groups of locking hooks is designed to control multiple zippers respectively, then the versatility and ease of operation are improved, but the device complexity increases
Solution Approach 1:
The lock is divided into multiple independent groups of locking hooks (first group and second group), each controlled by separate moving pieces. This segmentation allows independent control of different zippers while maintaining a modular structure that manages complexity through standardized control mechanisms.
Solution Approach 2:
The middle transmission mechanism serves multiple functions: it can transmit motion to open either the first or second group of locking hooks, or both simultaneously. This multi-functionality is achieved through a single unified mechanism that can operate in different modes, reducing the need for separate control systems for each function.
2Ease of operation
If a lock allows independent control of each zipper, then the ease of operation is improved, but the time required for transit checking increases
Solution Approach 1:
The first and second groups of locking hooks are merged into a single control system through the middle transmission mechanism. When the moving piece is actuated, the transmission mechanism can simultaneously transmit motion to both groups of locking hooks, allowing them to be opened at the same time. This merging of control functions reduces transit checking time while maintaining independent control capability.
3Device complexity
If a lock uses a single control mechanism for all locking hooks, then the device complexity is reduced, but the adaptability for different control modes is worsened
Solution Approach 1:
The middle transmission mechanism is designed with dynamic characteristics that allow it to adapt its function based on the position or state of the moving piece. The transmission path can be configured to engage different groups of locking hooks depending on the operational mode, enabling a single mechanism to provide multiple control options without requiring separate rigid systems for each function.
Data Source
AI summary
A mechanical composite lock includes a bottom plate and an upper shell, wherein an accommodation space is formed between the bottom plate and the upper shell; the accommodation space is provided with two groups of locking hooks; an inserting hole is formed in the upper shell; two moving pieces are arranged in the accommodation space; the opening directions of the two groups of locking hooks are opposite to each other; a middle transmission mechanism, a lock cylinder device and a password device are arranged in the accommodation space; the middle transmission mechanism is connected with the moving pieces respectively; the accommodation space is provided with a moving space; the lock cylinder device and the password device are respectively connected with the middle transmission mechanism; the lock can be opened at one time through the lock cylinder device and can also be sequentially opened through the password device.