Tool Cabinet Working Platform Synchronous Lifting and Wire Routing
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Solution Overview
Problem
Conventional tool cabinets experience asynchronous rotation of lifting units, leading to twisting of the linkage rod and unsmooth movement of the working platform, and the exposed transmission wire can distract or entangle users during operation.
Innovation Solution
The tool cabinet incorporates a protective tube to encase the transmission wire and utilizes a control module to synchronize the movement of motors, ensuring synchronous rotation of the threaded rods and shielding the wires within the protective tube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the transmission wire is exposed below the working platform for power supply connection, then the power supply connection is simple and accessible, but the user may be distracted or entangled by the wire during operation
Solution Approach 1:
The patent applies this principle by using a protective tube (flexible shell) to enclose the transmission wire. The protective tube is connected to the working platform and extends downward, allowing the wire to be routed through it rather than hanging exposed. This maintains power supply accessibility while preventing user entanglement and distraction by keeping the wire enclosed and organized.
2Adaptability or versatility
If the threaded rods of the two lifting units rotate asynchronously, then the individual lifting units can operate independently, but the linkage rod twists and the working platform movement becomes unsmooth
Solution Approach 1:
The patent applies this principle by introducing asymmetry in the control system through a control module that differentiates between the two lifting units. The control module receives signals and controls the motors of the two lifting units differently, allowing one unit to be driven directly while the other is driven through a linkage mechanism. This asymmetric control ensures synchronous rotation despite different drive paths, preventing linkage rod twisting and maintaining smooth working platform movement.
Solution Approach 2:
The patent applies this principle by implementing a control module that monitors and coordinates the rotation of both threaded rods. The control module receives feedback from the system state and adjusts the motor operations to ensure synchronous rotation of the threaded rods, even though one is directly driven and the other is driven through the linkage mechanism. This feedback control prevents asynchronous rotation and maintains reliable working platform movement.
3Device complexity
If a linkage unit is used to connect the two lifting units, then the structure is simplified and space is saved, but the linkage rod becomes long and amplifies the asynchronous rotation problem
Solution Approach 1:
The patent applies this principle by creating an asymmetric drive configuration where one lifting unit is directly driven by its motor while the other lifting unit is driven through the linkage mechanism. The control module compensates for the different drive paths, ensuring synchronous rotation of both threaded rods. This allows the use of a compact linkage unit to save space while maintaining smooth working platform movement through intelligent control.
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
This design prevents user distraction and entanglement, ensures smooth and synchronous movement of the working platform, and maintains a tidy environment by encasing the wires, addressing the issues of asynchronous rotation and wire exposure.
Implementation Method 1
Each of the lifting units 40 has a guide tube 41, a nut 42 that is disposed on a top end of the guide tube 41, a threaded rod 43 that is rotatably connected to the working platform unit 30, and that is threadedly connected to the nut 42
Data Source
AI summary
A tool cabinet includes a cabinet body having two guide rails and a routing space that is proximate to one of the guide rails, a working platform unit having a protective tube, two lifting units, a driving unit, and a power supply unit having a transmission wire. The working platform unit includes two extension members respectively slidable relative to the guide rails. Each lifting units includes a threaded rod extending through a respective extension member. The driving unit is disposed for driving rotation of the threaded rod of a respective one of the lifting units. The transmission wire has an end connected to the driving unit, and an opposite end extending through the protective tube into the routing space.