Dual-Mode Roller Shutter to Bypass Motor Lockage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Automatic doors used for pet access are unreliable in the absence of power supply or during circuit failures, leading to potential trapping or escape issues due to motor lockage.
Innovation Solution
A roller shutter system with dual operation modes, featuring a driving motor, connecting device, rotating shaft, and connecting rod, allowing both automatic and manual operation by engaging or disengaging the connecting device to ensure operation regardless of power availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an automatic door relying on electricity is used, then automation is improved, but reliability deteriorates due to power supply dependency and motor lockage
Solution Approach 1:
The connecting device transitions between connected and separated states dynamically. When connected, the motor drives the rotating shaft for automatic operation. When separated, manual operation becomes possible. This dynamic state change allows the system to adapt between automation and manual control based on operational needs, resolving the contradiction between automation and reliability.
Solution Approach 2:
The connecting device acts as an intermediary between the motor output and the rotating shaft. It can engage to transmit motor power for automatic operation or disengage to allow manual operation, serving as a mediator that enables both automatic and manual modes without direct conflict between the two operational requirements.
2Extent of automation
If the motor is used to drive the door, then automation is improved, but ease of operation deteriorates during power failures due to motor lockage
Solution Approach 1:
The connecting device enables dynamic switching between motor-driven automatic operation and manual operation. During normal operation, the motor drives the system automatically. During power failures, the connecting device can be separated to allow free manual rotation of the rotating shaft, ensuring continuous operability regardless of power availability.
Solution Approach 2:
The transmission system is segmented into separable components through the connecting device. The motor output and rotating shaft are not permanently coupled but can be disconnected. This segmentation allows the motor to be isolated during manual operation, eliminating the obstacle of motor lockage and enabling easy manual operation during power failures.
3Extent of automation
If the connecting device is always connected, then automation is maintained, but adaptability deteriorates during power failures
Solution Approach 1:
The connecting device provides dynamic adaptability by allowing the system to switch between connected (automatic mode) and separated (manual mode) states. This dynamic configuration enables the system to adapt to different operational conditions, including power failures, maintaining versatility while preserving automatic operation capability when power is available.
Solution Approach 2:
The connecting device enables the system to perform multiple functions: automatic motor-driven operation when connected and manual operation when separated. This multi-functionality increases the system's adaptability to different operational scenarios, including normal operation and power failure conditions, without requiring separate systems for each mode.
Data Source
AI summary
A roller shutter with dual operation modes includes a door frame, a roller shutter body, a driving motor, a connecting device, a rotating shaft and a connecting rod. The roller shutter body is slidably configured on the door frame, the rotating shaft is rotatably configured on the door frame, and the rotating shaft is connected with the driving motor through the connecting device. When the connecting device is in a connected state, the driving motor drives the connecting rod to retract or extend the roller shutter body; when the connecting device is a separated state, the rotating shaft is manually operated to drive the connecting rod to retract or extend the roller shutter body. The roller shutter can be opened or closed by manual operation in the absence of power supply or in case of circuit failure, which greatly improves the reliability and convenience.