Magnetic Coding Free Pin Lock Cylinder Structure

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Solution Overview

Problem

Existing lock cylinder structures in industrial settings face issues with reliability due to rust and dust ingress, complex designs, high production costs, and low anti-picking capacity, especially in harsh environments.

Innovation Solution

A magnetic coding free pin type lock cylinder structure with vertically and horizontally moving grooves, a dustproof device, and a simple sealing mechanism, featuring a lock knob with pin sliding grooves and a magnetic coding key for secure and reliable operation, while reducing manufacturing complexity and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a magnetic coding lock cylinder with multiple locking blocks is used to increase the number of lock codes, then the security and number of lock codes are improved, but the structure becomes complex and manufacturing cost increases

Engineering Contradiction:

ImprovesecurityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the code-forming function from multiple complex locking blocks and concentrates it into a single pin that can assume different positions. This pin can be located in various positions within the lock cylinder, with each position representing a different lock code, thereby achieving high security with simple structure.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The single pin serves multiple functions: it acts as both the locking element and the coding element. By positioning the pin in different locations, the same component can create multiple lock codes, eliminating the need for multiple specialized locking blocks.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple different locking blocks are arranged in the lock cylinder to form codes, then the number of lock codes increases, but the manufacturability decreases and productivity reduces

Engineering Contradiction:

Improvenumber of lock codesVSAvoidmanufacturing productivity

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent removes the need for multiple different locking blocks and replaces them with a single pin that can be positioned in various locations. This simplification dramatically improves manufacturability as only one type of component needs to be manufactured and assembled, rather than multiple different locking blocks with specific mounting angle requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

3Device complexity

If ordinary locks with marbles-spring or blade structure are used, then the structure is simple and manufacturing cost is low, but reliability deteriorates due to rust and dust ingress

Engineering Contradiction:

Improvestructure simplicityVSAvoidresistance to rust and dust

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces the traditional mechanical marbles-spring or blade structure with a magnetic field-based locking mechanism. The magnetic coding key interacts with the pin through magnetic force, eliminating the need for mechanical components that are susceptible to rust and dust, thereby improving reliability while maintaining structural simplicity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Device complexity

If the lock cylinder is placed horizontally with pins in random position, then the structure is simple, but anti-picking capacity decreases

Engineering Contradiction:

Improvestructure simplicityVSAvoidanti-picking capacity

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent introduces a magnetic field as an intermediary between the key and the pin. The magnetic coding key generates a magnetic field that precisely controls the pin's position, preventing random positioning and making picking difficult. The magnetic field acts as a mediator that ensures the pin is correctly positioned only when the correct key is used.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enhanced security, reliability, easy digital management, and reduced production costs by ensuring the lock cylinder's pins are securely positioned, preventing unauthorized access and maintaining functionality in harsh conditions.

Implementation Method 1

magnetic coding key for secure and reliable operation

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS9790712B2Magnetic coding free pin type lock cylinder structure

Publication Date: 2017.10.17 LI XIN

AI summary

A magnetic coding free pin type lock cylinder structure includes: a lock cylinder housing (101), a lock knob (104) disposed within the lock cylinder housing (101), a lock cylinder front end cover (102) and a lock cylinder rear end cover (103). Pin vertically moving grooves (114) and pin horizontally rotary grooves (113) are provided on an inner wall of the lock cylinder housing (101). An unlocking hole (116) for a magnetic coding key (115) is provided on the lock knob (104). A plurality of pin vertical sliding grooves (112) is provided on an outer wall of the lock knob (104). Free pins are provided in at least one of the plurality of pin vertical sliding grooves (112), and the free pins are big pins (107) or small pins (108).