Handheld Gimbal Clamping Lock for Stable Camera Angle

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Solution Overview

Problem

Conventional handheld gimbals fail to prevent mobile phone rotation when powered off or out of power, leading to unstable camera angles and user experience issues.

Innovation Solution

A clamping mechanism with a locking component, comprising a locking ring and ring seat with external and internal threads, and a gimbal motor for adjustable clamping, which locks the angle between the clamping arm and connecting arm, preventing relative rotation and ensuring stable camera positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional handheld gimbal is used without a locking component, then the device can rotate freely for adjustment, but the mobile phone rotates or shakes when the gimbal powers off, causing screen orientation changes

Engineering Contradiction:
Improveadjustability of shooting angleVSAvoidstability of camera angle when powered off
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking component is activated after the clamping arm reaches the desired position to lock the connecting arm, preventing unintended rotation when powered off. This preliminary locking action ensures the camera angle remains stable without requiring continuous power supply.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking component acts as an intermediary mechanism between the clamping arm and connecting arm, physically preventing relative rotation through mechanical engagement of the locking ring and ring seat with thread structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a locking component is added to prevent rotation when powered off, then camera angle stability improves, but the device structure becomes more complex

Engineering Contradiction:
Improvestability of camera angle when powered offVSAvoidstructure of clamping mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking component integrates multiple functions: the locking ring and ring seat with thread structures provide both the locking mechanism and the drive interface for the driving component, while also serving as structural connection elements between the clamping arm and connecting arm.

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

Solution Approach 2:

The locking component is integrated with the existing clamping arm and connecting arm structures. The ring seat is disposed on the clamping arm and the locking ring engages with it, merging the locking function into the existing mechanical framework rather than adding completely separate components.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If a thread-based locking mechanism is used, then the locking component can be easily engaged and disengaged, but manufacturing precision requirements increase due to threading

Engineering Contradiction:
Improveengagement of locking componentVSAvoidthread matching between locking ring and ring seat
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The thread structures on the locking ring and ring seat automatically engage and lock the components in place when the locking component is rotated, without requiring additional fastening steps or tools. The self-locking thread mechanism provides both easy operation and reliable engagement.

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

The solution effectively locks the angle between the clamping arm and connecting arm, preventing mobile phone rotation after adjusting the shooting angle, thereby enhancing the user experience of handheld gimbals by maintaining stable camera stability even when powered off.

Implementation Method 1

An external thread is disposed on the ring seat. An internal thread is disposed on the locking ring and matches with the external thread. The locking ring is moved toward the clamping arm by matching the internal thread with the external thread when the locking ring rotates.

Methodology Applied
Scientific EffectThread mechanism: Screw

Implementation Method 2

a knurl is disposed on a periphery surface of the locking ring to increase friction

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

the gimbal motor comprises a permanent magnet pole, a winding coil and a rotating shaft. The winding coil is disposed on the sleeve and is located inside the permanent magnet pole.

Methodology Applied
Scientific EffectElectromagnetic interaction: Electromagnetic Induction

Data Source

PatentEP3715695B1Clamping mechanism and handheld gimbal
Publication Date: 2023.08.16 WINNERS SUN PLASTIC & ELECTRONICS SHENZHEN
  • EP3715695B1 patent drawingFigure 1
  • EP3715695B1 patent drawingFigure 2
  • EP3715695B1 patent drawingFigure 3

AI summary

The present disclosure relates to a field of shooting support device, and to a champing mechanism and a handheld gimbal. The clamping mechanism includes an upper clamping portion, a lower clamping portion opposite to the upper clamping portion, a clamping arm connected to the upper clamping portion and the lower clamping portion, a connecting arm rotably connected with the clamping arm, and a locking component. The locking component limits relative rotation of the clamping arm and the connecting arm. The locking component is disposed on a rotational connection position of the clamping arm and the connecting arm.