One-Sided Container Locking Mechanism with Spring Return
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Solution Overview
Problem
Existing container locking mechanisms require operation on both sides to unlock, increasing operator workload and compromising storage efficiency due to increased height when folded.
Innovation Solution
A locking mechanism for a container that includes a locking element, a driving element, and a return element, allowing the upper cover to be securely locked and unlocked from one side, with a spring for automatic locking and compact storage, and an anti-theft element for enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the locking mechanism uses a crossbar that stretches directly into the side plate without return structure, then the locking is simple, but the crossbar may be damaged as it has no return structure
Solution Approach 1:
The locking mechanism uses a spring element that automatically returns the locking bar to its initial position after locking, eliminating the need for manual resetting. The spring stores energy during the locking action and releases it to automatically reset the bar, making the system self-servicing and improving reliability without adding complex control systems.
2Reliability
If the groove is made thicker and positioned not directly above side plates to protect the tongue, then the tongue damage is avoided, but the height of the stack after folded increases and storage cost increases
Solution Approach 1:
The locking mechanism transitions from a vertical groove design to a horizontal recess design in the side plate. The tongue element locks horizontally into the recess rather than vertically into a groove, changing the dimension of engagement. This allows the tongue to be protected from damage while maintaining a compact vertical profile for stacking, as the recess does not increase the overall height of the container when folded.
3Adaptability or versatility
If the side plate expands outward under liquid pressure, then the container can accommodate full load, but the depth the tongue inserts into the recess becomes shallow and latch reliability is reduced
Solution Approach 1:
The locking mechanism incorporates a spring element that dynamically adjusts the locking bar's position. As the side plate expands under liquid pressure, the spring compresses or extends to maintain optimal contact between the locking bar and the recess, ensuring the tongue remains securely engaged even when the container is fully loaded. This dynamic adjustment preserves latch reliability across varying load conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables one-sided unlocking, reduces operator labor, and maintains compact storage by automatically locking the upper cover, enhancing reliability and reducing storage costs.
Implementation Method 1
a spring (53) mounted in the groove and used to return the driving element after being unlocked
Data Source
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AI summary
A locking mechanism for locking an upper cover of a container to a side plate (2) of the container, the container (100) comprising a base (1), the upper cover (4) and the side plate, the upper cover (4) being provided with an edge guard; the locking mechanism comprises a lock hole (522) formed on the exterior of at least one of the side plate (2) and a groove (5411) formed on the upper cover ; an end of the locking element (50) is mounted in the groove (5411); the other end of the locking element (50) is provided with a lock (5021); the lock (5021) passes through the edge guard and extends into the locking hole in a direction perpendicular to a direction of the side plate (2) to securely lock the upper cover (4) to the side plate (2); the driving element (51) is mounted in the groove (5411) and used to return element is mounted in the groove (5411) and used to return the mechanism, transportation and storage cost are reduced, and labor of operators is saved.