Security Lock With Radial Hooks for Slot Damage Prevention

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Solution Overview

Problem

Conventional security locks for electronic devices damage the security slot due to frequent pressing and are unstable, leading to insufficient anti-pulling and anti-pushing performance.

Innovation Solution

A security lock design where the fixing element is mounted statically in the security slot, with hooks moving radially to engage, preventing direct pressure on the slot and ensuring a stable support for enhanced anti-pulling and anti-pushing performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the pushing stick is made movable to allow engagement with the security slot, then the lock can be mounted and dismounted, but the pushing stick presses the security slot repeatedly causing damage

Engineering Contradiction:

Improvemounting and dismounting capabilityVSAvoiddamage to security slot

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the pressing function from the engagement process. The pushing stick is designed to engage the security slot without pressing the inner surface by using a curved guiding structure that allows the stick to rotate slightly during engagement, transferring the pressing action away from the security slot's inner surface.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of the pushing stick moving linearly and pressing the security slot, the patent inverts the motion path by using a curved guiding structure. The stick rotates along a curved path during engagement, reversing the conventional linear pressing motion and eliminating the harmful pressing effect on the security slot.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If the pushing stick and hooks are made movable to enable engagement, then the lock can be mounted, but the combination becomes unstable with insufficient anti-pulling and anti-pushing performance

Engineering Contradiction:

Improveengagement capabilityVSAvoidanti-pulling and anti-pushing performance

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent uses a curved guiding structure instead of a straight one. This curvature allows the pushing stick to rotate smoothly during engagement, creating a more stable mechanical connection. The curved path distributes the engagement forces more evenly, enhancing the overall stability and resistance to pulling and pushing forces.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS12428879B2Security lock

Publication Date: 2025.09.30 SINOX CO LTD

AI summary

A security lock has a fixing element and at least one hook. The fixing element is mounted in a security slot of an electronic device. The hook is capable of moving axially with respect to the fixing element, and the hook moves radially outward along a guiding structure of the fixing element to engage with the security slot, the fixing element stays static, i.e., without moving and rotating as the hook is moving. Therefore, the security lock won't press the security slot, and further prevents damage to the security slot caused by frequently or constantly loaded with the security lock. Furthermore, without moving and rotating in a mounting process of the security lock, the fixing element holds the hook to steadily engage with the security slot, and thus an overall anti-pulling and anti-pushing performances are enhanced.