Electric Push Rod Release Mechanism Speed Control
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Solution Overview
Problem
Existing electric push rod systems for equipment like electric beds and massage chairs lack control over the retracting speed of the retractable tube set, leading to potential discomfort or damage to users or loads during rapid retraction, as the clutch mechanism cannot regulate the speed effectively.
Innovation Solution
An electric push rod and release mechanism combination structure that includes a housing with a reducing gear set, a transmission screw rod, a retractable tube set, and a release mechanism comprising a mounting socket, a connection socket, a torsion spring, a clutch module, and an operating device, allowing for controlled retraction and adjustment of the operating angle to ensure safety and reduce installation space and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the clutch mechanism allows rapid retraction of the retractable tube set, then the release operation is quick and efficient, but the retracting speed cannot be controlled causing discomfort or damage to users or loads
Solution Approach 1:
The patent applies the dynamics principle by making the retraction speed adjustable rather than fixed. The operating device can be set to different angular positions (0° to 45°) which dynamically changes the retraction speed characteristics. This allows the system to adapt between quick release (higher productivity) and controlled release (higher safety) based on operational needs, resolving the contradiction between rapid retraction and user safety.
2Device complexity
If the operating device has a fixed structure, then the device complexity is reduced, but the operating angle cannot be adjusted limiting operational flexibility
Solution Approach 1:
The operating device incorporates an adjustable angle mechanism that allows dynamic reconfiguration of the operating angle between 0° and 45°. This dynamic adjustability provides operational flexibility without requiring multiple fixed-structure devices, thereby maintaining relatively simple device complexity while achieving high adaptability for different operational scenarios.
Solution Approach 2:
The operating device is designed as a multi-functional component that can perform both locking and releasing functions while accommodating variable operating angles. This universal design allows a single device structure to handle multiple operational requirements (different angles, speeds, and load conditions) that would otherwise require multiple specialized components, thus balancing structural simplicity with operational 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
The solution enables smooth and controlled retraction of the electric push rod, enhancing safety by regulating the retraction speed and reducing the risk of injury or damage, while also optimizing space and fabrication costs.
Implementation Method 1
a torsion spring mounted around the mounting socket and the connection socket to hold down the mounting socket and the connection socket
Data Source
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AI summary
An electric push rod and release mechanism combination structure includes an electric push rod assembly using a coupling for connection to movable frame parts of an equipment and a motor to rotate a transmission screw rod through a reducing gear set in moving a retractable tube set between an extended position and a received position, and a release mechanism consisting of a mounting socket, a connection socket, a torsion spring, a clutch module and an operating device and connected between the retractable tube set and the coupling of the electric push rod assembly for operation by a user to release the retractable tube set from the coupling safely with less effort.