Rotatable Blower Body Locking Mechanism for Airflow Adjustment

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Solution Overview

Problem

Conventional blowers have fixed air flow directions, making it inconvenient to adjust the airflow according to operation needs, as they require adjusting the blower orientation.

Innovation Solution

A blower design with a regulating mechanism that allows the blower body to rotate relative to the base, featuring a coupling member, regulating knob, and resetting member, enabling adjustable airflow direction without moving the base, along with additional features like a battery mechanism and illumination for enhanced usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the blower body is fixed on the base, then the structure is simple and stable, but the air flow direction cannot be adjusted conveniently

Engineering Contradiction:
Improveair flow direction adjustmentVSAvoidregulating mechanism structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The blower body is made rotatable relative to the base through the coupling member, transforming the fixed structure into a dynamic one that allows air flow direction adjustment while maintaining structural stability through the resetting member's limiting function

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling member acts as an intermediary between the blower body and base, enabling rotational movement while the resetting member mediates the locking and unlocking actions through the regulating knob, resolving the contradiction between stability and adjustability

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the regulating knob is always limiting the coupling member, then the blower body remains stable, but the air flow direction cannot be adjusted

Engineering Contradiction:
Improveair flow direction regulationVSAvoidblower body stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The resetting member creates a periodic locking and unlocking mechanism where the regulating knob can be pressed to release the limitation, allow rotation, and then automatically reset to limit the coupling member again, enabling both adjustment and stability

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The resetting member automatically drives the regulating knob to reset after being pressed, making the system self-regulating - the knob limits the coupling member by default, releases when pressed, and automatically returns to the limiting position after rotation, ensuring stability is maintained without continuous user intervention

Inventive Principle:
Principle #25Self-service

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

Enables convenient adjustment of airflow direction, expanded application scope due to power source flexibility, and improved usability in dark environments with integrated lighting, and versatile operation modes.

Implementation Method 1

the resetting member is a spring with a length direction thereof being parallel to an axial line of the coupling member... the spring and the coupling member are respectively arranged on two sides of the baffle, and two ends of the spring are respectively fixed to the regulating knob and the baffle

Methodology Applied
Scientific EffectSpring elasticity: Spring

Implementation Method 2

the fan of a blower is a centrifugal fan. When the blower is in a blowing mode, the high-speed air flow injected from the blowing duct gathers the fallen leaves, dusts and small junks

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS10206338B2Blower
Publication Date: 2019.02.19 ZHEJIANG PRULDE ELECTRIC APPLIANCE CO LTD
  • US10206338B2 patent drawing
  • US10206338B2 patent drawing
  • US10206338B2 patent drawing

AI summary

A blower includes a blower body. The blower body includes a housing, an impeller arranged inside the housing, and a motor arranged in the housing and driving the impeller to rotate. The blower body includes an air inlet and an air outlet. The blower further includes a base and a regulating mechanism. The blower body is mounted on the base via the regulating mechanism, and the regulating mechanism includes a coupling member, a regulating knob and a resetting member. The blower body is rotatably mounted on the base via the coupling member, the regulating knob is arranged on the base and cooperates with the coupling member to limit the coupling member, and the resetting member is arranged on the base and cooperates with the regulating knob to cause the regulating knob to reset.