Fast Positioning Structure for Roller Blind Assembly
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Solution Overview
Problem
Traditional roller blind positioning structures are time-consuming and require multiple personnel to assemble, especially for large curtains, due to complex assembly steps and the need for manual screwing and unscrewing of components.
Innovation Solution
A fast positioning structure for a roller blind that includes a controller with an axle rod, axial rail limiting assembly, elastic member, inner tube, touch member, positioning member, and outer sleeve tube, allowing for automatic assembly and positioning through tooth engagement mechanisms without screws, enabling rapid and efficient adjustment of curtain positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional positioning structures are used, then the assembly is secure and reliable, but the assembly process is time-consuming and requires multiple personnel
Solution Approach 1:
The positioning structure is divided into modular components including positioning members with outer ring gears, position limiting members with inner ring gears, and independent tooth parts on inner tubes and seal caps. These segmented modules can be independently manufactured and assembled through simple engagement operations rather than complex screwing procedures
Solution Approach 2:
The tooth parts serve as intermediary elements that mediate the connection between inner tubes and seal caps, as well as between positioning members and position limiting members. This tooth engagement mechanism replaces traditional screw connections, enabling rapid assembly without requiring multiple personnel or complex tools
2Manufacturing precision
If manual screwing and positioning is used, then precise positioning is achieved, but assembly time is excessive
Solution Approach 1:
The tooth parts are pre-configured on the inner tubes and seal caps at manufacturing stage, and the ring gears are pre-formed on the positioning members. This preliminary preparation allows the components to engage directly through simple insertion and rotation movements, eliminating the need for time-consuming manual screwing while maintaining precise positioning through the predetermined tooth engagement geometry
Solution Approach 2:
The traditional screw-mechanism is replaced with a tooth-gear engagement mechanism. The tooth parts on inner tubes engage with corresponding tooth parts on seal caps, and the ring gears on positioning members engage with each other, creating a mechanical interlocking system that provides precise positioning through gear meshing rather than threaded fastening
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
Enables quick and efficient positioning of curtain fabrics by eliminating the need for manual screwing, reducing assembly time and manpower requirements, while ensuring precise control over the vertically extending and shrinking positions of the curtain.
Implementation Method 1
an elastic member in the screw member
Data Source
AI summary
A fast positioning structure of a safe position limiting device of a roller blind is disclosed herein. It mainly comprises a controller having an axle rod, an axial rail limiting assembly assembled to the axle rod and having a screw member, an elastic member in the screw member, and an inner tube with which a first tooth part is provided, a touch member for limiting the inner tube in the screw member, a positioning member and a position limiting member disposed at an external of the screw member, and an outer sleeve tube disposed at an external of the screw member and having a seal cap with which a second tooth part is provided at one end thereof for corresponding to the first tooth part of the inner tube.