Motor-Driven Telescopic Push Rod for Space-Saving Actuation
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Solution Overview
Problem
Existing push rod devices require significant space for liquid or gas storage and installation, complicating the installation process due to the need for pipelines for gas/liquid transportation.
Innovation Solution
A push rod device featuring a rotating shaft driven by a motor, with a telescopic assembly that includes a bearing seat, outer sleeve, collar element, inner sleeve, and magnetic units for telescoping, allowing for space-efficient operation and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If air cylinders or hydraulic cylinders are used as power sources, then pushing function is achieved, but storage volume for liquid or gas becomes large
Solution Approach 1:
The patent extracts and eliminates the need for large-volume liquid or gas storage systems by replacing traditional hydraulic or pneumatic cylinders with a motor-driven telescopic assembly. The telescopic assembly generates pushing force through mechanical extension without requiring external fluid storage, thereby removing the source of large storage volume while maintaining the pushing function.
Solution Approach 2:
The patent replaces the hydraulic/pneumatic mechanical system with a motor-driven telescopic mechanical system. Instead of using fluid pressure to generate force, the invention uses a motor to drive the telescopic assembly through gear mechanisms, substituting the fluid-based mechanical system with a solid-mechanics-based system that requires minimal space.
2Power
If pipelines for transporting gas/liquid are installed, then power transmission is achieved, but installation complexity increases
Solution Approach 1:
The patent extracts and removes the pipeline system from the power transmission mechanism. By using a motor directly mounted on the rotating shaft to drive the telescopic assembly, the invention eliminates the need for external pipelines to transport hydraulic fluid or compressed gas, thereby achieving power transmission without the complexity of pipeline installation.
Solution Approach 2:
The patent merges the power source (motor) directly with the actuating mechanism (telescopic assembly) on the rotating shaft. This integration combines what were previously separate components (power source and actuator connected via pipelines) into a unified compact unit, eliminating the need for intermediate transmission pipelines and reducing installation complexity.
3Force
If traditional push rod devices are used, then pushing function is achieved, but space occupation increases
Solution Approach 1:
The patent employs a telescopic assembly where the inner rod is nested within the outer cylinder, and further components are nested within the inner rod. This nested structure allows the pushing mechanism to achieve its full extended length for force application while maintaining a compact retracted profile, significantly reducing the space occupation when not in use while preserving the full pushing force capability.
Solution Approach 2:
The patent transforms the static or fixed-length push rod into a dynamic telescopic assembly that can extend and retract. The telescopic structure allows the device to adapt its length dynamically - extended when pushing force is needed, retracted when space is constrained - thereby resolving the contradiction between needing sufficient length for force application and minimizing space occupation during storage or non-use.
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 device effectively saves space and reduces installation complexity by using a motor-driven telescopic assembly with magnetic units, enabling convenient operation and efficient pushing of objects.
Implementation Method 1
the first magnetic unit and second magnetic unit are attracted to or repelled from each other through magnetic force, thereby driving the outer cylinder to telescope along the inner rod
Data Source
AI summary
A push rod device includes a rotating shaft, drive motor and telescopic assembly. The drive motor is connected to the rotating shaft, adapted to drive it to rotate. The telescopic assembly can be movably provided on the rotating shaft. When the rotating shaft is rotated, the telescopic assembly can be telescoped along the extension direction of the rotating shaft. In use, the present invention is very convenient, and the structure thereof is simple, capable of effectively saving installation space and reducing installation difficulty.