Lifting Cabinet with Nested Guide Rail to Prevent Cable Exposure
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Solution Overview
Problem
The existing lifting devices for cabinets expose steel cables when the cabinet moves downward, affecting the aesthetic appearance and causing potential damage, and are not suitable for cabinets without doors due to this exposure.
Innovation Solution
A lifting device with an internal guide rail connected to a steel cable, which moves vertically along an external guide rail, keeping the cable enclosed within the cabinet, and a power mechanism using a motor and screw rod to achieve the lifting motion, with accommodation spaces to manage cable positioning and prevent entanglement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed pulleys are fixed on the upper part of the cabinet to achieve lifting function, then the lifting mechanism can be implemented, but the steel cable will be exposed above the cabinet when the cabinet moves downward
Solution Approach 1:
The patent applies nesting by placing the internal guide rail inside the accommodation space of the external guide rail. The steel cable is routed through the internal guide rail which is nested within the external guide rail structure, keeping the cable hidden inside the cabinet frame rather than exposed externally.
Solution Approach 2:
The patent transitions the steel cable from an external exposed position to an internal concealed position by routing it through the vertical accommodation space within the guide rail structure. This dimensional repositioning moves the cable into the third dimension (inside the cabinet frame) rather than leaving it in the external space.
2Reliability
If fixed pulleys are used in the lifting mechanism, then lifting function is achieved, but the steel cable is exposed and susceptible to damage
Solution Approach 1:
The internal guide rail is nested within the external guide rail's accommodation space, creating a protective enclosure for the steel cable. This nested structure shields the cable from external damage while maintaining the lifting mechanism's functionality.
Solution Approach 2:
The internal guide rail acts as an intermediary structure between the steel cable and the external environment. It provides a protected pathway for the cable, mediating the interaction between the cable and potential external harmful factors.
3Adaptability or versatility
If the lifting device is assembled in a lifting cabinet without a cabinet door, then space utilization is improved, but the steel cable exposure problem becomes more severe
Solution Approach 1:
The nested guide rail structure allows the lifting device to be installed in cabinets without doors while keeping the steel cable concealed within the internal guide rail's accommodation space, eliminating the aesthetic problem associated with cable exposure.
Solution Approach 2:
The patent creates a universal lifting device that can be installed in various cabinet types (with or without doors) by concealing the steel cable within the internal guide rail structure, making the device adaptable to different cabinet configurations while maintaining aesthetic appearance.
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 prevents steel cable exposure, enhances the aesthetic appearance of the cabinet, and allows the lifting device to be used in cabinets without doors by keeping the cable enclosed, reducing the risk of damage and entanglement, while maintaining a labor-saving functionality.
Implementation Method 1
a power mechanism which is connected with a first end of the steel cable
Implementation Method 2
a power mechanism which is connected with a first end of the steel cable; a lifting mechanism comprising an internal guide rail which is connected with a second end of the steel cable
Data Source
AI summary
A lifting cabinet has left and right lifting mechanisms each comprising a steel cable; a power mechanism which is connected with a first end of the steel cable; an internal guide rail which is connected with a second end of the steel cable; and an external guide rail which is fixed on a frame of the lifting cabinet and is configured with an accommodation space therein. The internal guide rail is located within the accommodation space. The lifting cabinet solves the problem of exposure of the steel cable.