Miniature Smart Lock Anti-Prizing Guide Slot Mechanism
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Solution Overview
Problem
Traditional electronic locks are large in size, prone to malfunction due to environmental factors like dust and moisture, and have poor anti-prizing performance, making them unsuitable for small objects and posing safety risks.
Innovation Solution
A miniature smart lock with a magnetic rod, push head, bolt, V-shaped push rod, anti-prizing guide slot, and positioning guide pin, utilizing electromagnetic driving for power-on unlocking and power-off locking, with a V-shaped anti-prizing guide slot and return spring for secure locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional electronic locks are used, then locking function is provided, but the size is large and not suitable for small objects
Solution Approach 1:
The patent replaces the traditional mechanical rack and pinion mechanism with an electromagnetic driving system. The electromagnetic coil generates magnetic force to directly drive the magnetic rod, which in turn actuates the bolt through the V-shaped push rod. This substitution eliminates complex mechanical transmission components, reducing the overall lock size while improving reliability by removing parts susceptible to dust and moisture accumulation.
Solution Approach 2:
The patent changes the driving mechanism from mechanical to electromagnetic, fundamentally altering the operational parameters. The electromagnetic coil converts electrical energy to mechanical motion through magnetic field generation, enabling compact design. The V-shaped push rod converts the linear motion of the magnetic rod into the required bolt movement, optimizing space utilization and achieving miniaturization without compromising locking functionality.
2Reliability
If traditional electronic locks with rack and pinion mechanisms are used, then locking function is provided, but the mechanisms are affected by dust and moisture accumulation when temperature changes
Solution Approach 1:
The patent replaces the traditional mechanical rack and pinion mechanism with an electromagnetic driving system. The electromagnetic coil generates magnetic force to directly drive the magnetic rod, which in turn actuates the bolt through the V-shaped push rod. This substitution eliminates complex mechanical transmission components, reducing the overall lock size while improving reliability by removing parts susceptible to dust and moisture accumulation.
Solution Approach 2:
The patent extracts and removes the rack and pinion mechanisms from the lock system, eliminating the source of environmental susceptibility. By taking out these complex mechanical transmission components and replacing them with a direct electromagnetic drive, the design reduces the number of moving parts that can accumulate dust and moisture, thereby improving reliability in temperature-varying environments.
3Reliability
If traditional electronic locks are used, then locking function is provided, but the anti-prizing performance is poor
Solution Approach 1:
The patent employs a V-shaped push rod that creates a mechanical constraint system where the bolt's movement is controlled along a specific V-shaped path. This geometric constraint ensures that prying forces are distributed and redirected, making it difficult for unauthorized users to manipulate the bolt. The positioning guide pin working with the V-shaped guide slot creates a controlled motion path that maintains security while using simple structural elements.
Solution Approach 2:
The patent introduces the V-shaped guide slot and positioning guide pin mechanism that adds a dimensional constraint to the bolt's movement. Instead of allowing linear movement only, the V-shaped geometry creates a two-dimensional constraint path, forcing any prying attempt to overcome both horizontal and vertical constraints. This dimensional addition significantly improves anti-prizing performance without requiring complex multi-component systems.
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
The solution provides a compact, reliable, and durable lock that is not affected by temperature changes, ensuring secure operation and anti-prizing functionality through clever design of the positioning guide pin and anti-prizing guide slot.
Implementation Method 1
electromagnetic driving is used such that the lock is unlocked when power is on and is locked when power is off
Data Source
AI summary
A miniature smart lock comprises a lock shell, and a magnetic rod, a push head, a bolt, a V-shaped push rod, an anti-prising guide slot, and a positioning guide pin, which are mounted in the lock shell, wherein a magnetic coil is mounted surrounding an outer portion of the magnetic rod; a magnetic rod spring is mounted on the magnetic rod on the left side of the magnetic coil; the push head is mounted at the right end of the magnetic rod; the V-shaped push rod is connected to the right end of the push head via a V-shaped push rod connection pin; and the V-shaped push rod is movably connected to the bolt via an anti-prising pin.