Automatic Door Reset Mechanism With Adjustable Spring Force
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Solution Overview
Problem
Existing automatic reset devices for doors lack the ability to adjust initial elastic deformation and resetting speed, leading to either insufficient resilience force causing unstable door resetting or excessive force resulting in damage.
Innovation Solution
An automatic reset device with a first and second connecting component and an elastic reset member, featuring an adjustment component that includes a connector and actuator, allowing for the adjustment of elastic deformation through relative rotation and the use of torsional springs to control resilience force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the resilience force of the automatic reset device is increased to ensure timely door resetting, then the door resetting speed is improved, but the door may be damaged or users may get hurt due to excessive force
Solution Approach 1:
The patent applies the dynamics principle by making the resilience force adjustable rather than fixed. The adjustment component allows the elastic deformation of the spring to be modified, enabling the resilience force to adapt to different door types and usage scenarios. This dynamic adjustment capability resolves the contradiction by allowing optimization of resetting speed while preventing excessive force that could cause damage or injury.
Solution Approach 2:
The patent implements parameter changes by modifying the initial elastic deformation of the spring through the adjustment component. By changing this physical parameter, the resilience force can be precisely controlled to match the specific requirements of different doors, thereby achieving appropriate resetting speed without causing harmful effects from excessive force.
2Object-affected harmful factors
If the resilience force of the automatic reset device is decreased to prevent door damage, then the safety is improved, but the door cannot be reset in a timely and stable manner
Solution Approach 1:
The adjustment component enables dynamic modification of the spring's elastic deformation, allowing the resilience force to be optimized for each specific application. This ensures that the force is sufficient to reset the door stably and timely without being excessive to cause damage, thus resolving the contradiction between safety and resetting reliability.
Solution Approach 2:
By allowing adjustment of the initial elastic deformation parameter of the spring, the system can precisely control the resilience force to the optimal level required for stable and timely door resetting while preventing door damage, thereby simultaneously achieving both safety and reliability.
3Device complexity
If the elastic deformation of the spring is fixed after mounting, then the device structure is simple, but the door resetting performance cannot be adjusted to suit different scenarios
Solution Approach 1:
The patent segments the device into a fixed main body and a separate adjustable component. The adjustment component can be modified independently to change the spring's elastic deformation, while the rest of the device structure remains simple and fixed. This segmentation allows for adaptability without significantly increasing overall device complexity.
Solution Approach 2:
The adjustment component is designed to allow users to independently adjust the elastic deformation of the spring according to their specific needs. This self-service capability enables the device to adapt to different door resetting scenarios without requiring complex external adjustment mechanisms or professional intervention, thus maintaining structural simplicity while enhancing versatility.
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 independent adjustment of the door resetting speed and force, preventing damage from excessive resilience while ensuring stable resetting.
Implementation Method 1
the elastic reset member generates an elastic deformation and causes the first connecting component to have a trend of being reset
Implementation Method 2
The adjustment component includes a connector and an actuator; the actuator is rotatably connected to the connector; the actuator is connected to the second end of the elastic reset member; and the actuator drives the elastic reset member to increase or decrease the elastic deformation when rotating relative to the connector
Data Source
AI summary
The present disclosure provides an automatic reset device for a door. The automatic reset device for a door includes a first connecting component, a second connecting component and an elastic reset member. The first connecting component is configured to be connected to a surface of a rotating door. The second connecting component is configured to be connected to a supporting surface close to a rotating shaft of the rotating door, and the second connecting component is provided with an adjustment component. The first connecting component and the second connecting component are rotatably connected to each other. A first end of the elastic reset member is connected to the first connecting component, and a second end of the elastic reset member is connected to the adjustment component. The first connecting component is stressed to rotate relative to the second connecting component.