Anti-dismantle Device Using Magnetic and Elastic Ball Locking

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Solution Overview

Problem

Conventional anti-dismantle devices either have detachable portions that allow unintended disassembly or require destructive methods, leading to irreversible damage when disassembled.

Innovation Solution

An anti-dismantle device design featuring an upper case, lower case, elastic elements, magnet elements, and balls, where the upper case includes a pin with a groove, and the lower case has a receiving part with an accommodation space, using magnetic and elastic forces to securely assemble and non-destructively disassemble without visible detachable parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are employed to assemble the upper case and lower case, then the assembly is secure, but the anti-dismantle device has obvious detachable portions that allow easy unintended disassembly

Engineering Contradiction:
Improveassembly securityVSAvoidease of disassembly
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent removes the traditional screw fastening mechanism from the exterior of the device. Instead, the fastening function is extracted and implemented through magnetic attraction between the upper and lower cases, eliminating visible detachable portions and preventing easy unintended disassembly while maintaining secure assembly.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical screw-fastening system with a magnetic field-based fastening system. The magnetic attraction force between the upper case and lower case provides secure assembly without requiring external screwdrivers or visible fastening components, thus preventing easy disassembly while maintaining assembly strength.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If hooks are employed to assemble the upper case and lower case, then unintended disassembly is prevented, but the anti-dismantle device requires destructive methods for disassembly causing irreversible damage

Engineering Contradiction:
Improvedisassembly preventionVSAvoiddevice integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the hook-based mechanical fastening system with a magnetic field-based fastening system. The magnetic attraction provides strong holding force that prevents unintended disassembly, while allowing controlled disassembly through magnetic interference without causing irreversible damage or demolition vestiges to the device structure.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fastening mechanism from permanent mechanical interlocking (hooks) to controllable magnetic attraction. By adjusting magnetic field parameters, the device can maintain strong assembly under normal conditions while allowing non-destructive disassembly when needed, thus preserving device integrity.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If no detachable portions are provided in outward appearance, then unintended disassembly is prevented, but the device complexity increases due to internal magnetic and elastic mechanisms

Engineering Contradiction:
Improvedisassembly preventionVSAvoidinternal mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent embeds the magnetic elements and elastic elements within the internal structures of the upper and lower cases. The magnetic elements are positioned between the elastic elements and the opening of the accommodation space, while the elastic elements are disposed in the accommodation space. This nested arrangement provides the required functionality while maintaining a clean external appearance and minimizing overall device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Prevents unintended disassembly and allows for non-destructive disassembly of the anti-dismantle device, maintaining the integrity of the upper and lower cases without irreversible damage.

Implementation Method 1

the at least one magnet element presses against the elastic element

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Implementation Method 2

In response to an elastic force of the elastic element, the magnet element cooperates with the cover to press against the plurality of balls

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS10881012B1Anti-dismantle device
Publication Date: 2020.12.29 DELTA ELECTRONICS INC(CN)
  • US10881012B1 patent drawing
  • US10881012B1 patent drawing
  • US10881012B1 patent drawing

AI summary

An anti-dismantle device is provided. The anti-dismantle device includes an upper case, a lower case, an elastic element, a magnet element, a plurality of balls and a cover. The upper case includes a pin including a groove. The lower case is detachably assembled with the upper case and comprises a receiving part comprising an accommodation space. The elastic element, the magnet element and the balls are disposed in the accommodation space. At least portion of the pin penetrates through the cover, the receiving part, the magnet element and the elastic element and is disposed in the accommodation space. Each ball is partially accommodated in the groove. In response to an elastic force of the elastic element, the magnet element cooperates with the cover to press against the balls for allowing the balls to be fastened in the groove, so that the upper case and the lower case are assembled.