Christmas tree built-in lifting device
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Solution Overview
Problem
Existing Christmas tree lifting devices suffer from slow propulsion speeds, loud noise, and limited telescoping capabilities, making them inconvenient for handling and transportation.
Innovation Solution
A Christmas tree lifting device with a built-in chain mechanism, comprising an outer and inner tube, a motor, and a transmission gear system, allowing for multi-stage stacking and assembly, with power contacts for efficient electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a screw rod linear propulsion device is used, then the lifting function is achieved, but the propulsion speed is slow and the noise is loud
Solution Approach 1:
The patent replaces the screw rod linear propulsion mechanism with a chain drive system. The motor drives the chain through gears, and the chain moves the inner tube upward. This mechanical substitution eliminates the slow speed and loud noise characteristics of screw rod mechanisms while achieving the same lifting function.
Solution Approach 2:
The patent changes the fundamental operating parameters of the propulsion system by switching from a rotary-screw linear conversion mechanism to a direct chain drive system. This parameter change enables faster propulsion speed and reduced operational noise while maintaining the lifting capability.
2Adaptability or versatility
If a single telescoping design is used, then the lifting function is achieved, but the stacking capability is limited
Solution Approach 1:
The patent divides the lifting device into multiple independent modules, each consisting of an outer tube, inner tube, motor, and chain assembly. These modular segments can be stacked vertically to achieve different height requirements. The segmentation principle enables versatile stacking capability while keeping each individual module relatively simple in structure.
Solution Approach 2:
The patent designs each module with universal interfaces and standardized components, allowing the same module to function both as a standalone unit and as part of a stacked configuration. The outer tube of one module serves as the inner tube for the next module, creating a universal stacking system that adapts to various height requirements without increasing structural complexity significantly.
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 enables faster and quieter lifting operations with the ability to stack multiple stages, enhancing user convenience and transportation ease.
Implementation Method 1
a motor (203), said motor (203) being fixed inside a lower end of said outer tube (201) and electrically connected to said power-taking contact (209)
Implementation Method 2
a transmission gear (206), said transmission gear (206) being rotatably fixed on a side of said coupling (205) and power-connected with said coupling (205); a chain (204), a lower end of said chain (204) meshing with said transmission gear (206)
Data Source
AI summary
The application provides a Christmas tree built-in lifting device comprising a base, a lifting device fixed on the base. The lifting device comprises an outer tube, an inner tube, a motor, a chain, a coupling, a transmission gear, a chain fixing plate, a driven gear. The Christmas tree lifting device is configured as a built-in chain lifting device, and the motor drives the chain to rotate and then drives the inner tube fixed on the chain to realize lifting. The lifting of this solution is faster and with less noise. The lower end of the built-in chain lifting device is configured as a contact to take power, and the upper end is configured as a contact to transmit power. The multi-stage lifting device can be stacked repeatedly as required, thereby making it more convenient for users to use as required, and the multi-stage lifting device is more convenient for transportation.