Foldable Portable Fan Screwless Bolt Connection Mechanism

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Solution Overview

Problem

Existing portable fans are inconvenient to use and package due to screw connections, leading to inefficient logistics and high costs, with limited base selection options.

Innovation Solution

A foldable portable fan design featuring a connecting part, rotating part, bolt, and bolt column for easy assembly without screws, allowing for interchangeable bases and reduced packaging material usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screw connection is used between base and fan entity, then connection strength is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveconnection strengthVSAvoidease of connection
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The connection structure is divided into multiple components: connecting part with connecting hole, rotating part with inserting part, bolt, and bolt column. This segmentation allows for easier assembly and disassembly while maintaining connection strength through the distributed fastening mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inserting part acts as an intermediary element that connects the rotating part to the base through the connecting hole, while the bolt and bolt column provide the fastening mechanism. This intermediary structure enables tool-free assembly while maintaining strong connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If non-foldable structure is used, then structural stability is improved, but loss of substance deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidpackaging material waste
Core Design Contradiction:
Stability of the object's compositionVSLoss of substance

Solution Approach 1:

The fan structure is made dynamic through the rotating part that can pivot between extended and folded positions. This dynamic capability allows the fan to adapt its configuration for different uses (stable extended position for operation, folded position for compact storage and shipping), reducing packaging material requirements while maintaining structural stability when needed.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If single base design is used, then device complexity is reduced, but adaptability deteriorates

Engineering Contradiction:
Improvebase configurationVSAvoidbase selection
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The connecting part with its standardized connecting hole and the rotating part with inserting part create a universal interface that can accommodate multiple base types. This universal connection mechanism allows a single fan entity to work with various bases (clamps, stands, mounts) without requiring different connection structures, thereby increasing adaptability while maintaining relatively simple device architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11536294B1Foldable portable fan
Publication Date: 2022.12.27 SHENZHEN CHINAUNION TECH CO LTD
  • US11536294B1 patent drawing
  • US11536294B1 patent drawing
  • US11536294B1 patent drawing

AI summary

The invention is about a foldable portable fan, which relates to the technical field of a fan, including an entity; the bottom of the entity is fixedly arranged with a connecting part, the connecting part is connected with a rotating part, one side of the rotating part is connected with a bolt, one end of the bolt is connected with a bolt column; the fan can conveniently connect the entity and the base together by setting a connecting part, a rotating part, a bolt and a bolt column, avoiding the use of screws, and the connection is very convenient; in addition, the entity can be folded between the base, which can save packaging materials, occupy less transportation space and save costs in logistics packaging; and the entity can be matched with different bases, thus providing higher selectivity and more flexible sale.