Roller shutter which is convenient to mount
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Solution Overview
Problem
Existing window curtains are complex to install, require drilling into walls, and cannot be easily adjusted to fit windows of varying widths, limiting their application scope.
Innovation Solution
A window curtain design featuring a rolling pipe with a telescopic fixing component that includes a rotating sleeve, screw cylinder, and thrust spring, allowing for adjustable fixation points that can elongate or contract to fit different window widths without damaging the wall, using frictional force for attachment and a self-locking mechanism for secure installation and easy disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the window curtain to the walls, then the fixation is strong and reliable, but the installation process becomes complex and requires drilling into walls
Solution Approach 1:
The patent replaces the traditional screw-based mechanical fixation system with a telescopic plug system that uses friction and expansion forces. The telescopic plug is inserted into the rolling pipe and expanded against the wall surface, eliminating the need for screws and drilling while maintaining reliable fixation.
Solution Approach 2:
The patent extracts the drilling operation from the installation process by using a telescopic plug that can be directly inserted into the rolling pipe and expanded against the wall without requiring pre-drilled holes. This removes the harmful drilling step while keeping the fixation function.
2Device complexity
If the window curtain is fixed with a fixed length, then the structure is simple, but it cannot adapt to windows of different widths
Solution Approach 1:
The patent introduces a telescopic mechanism that allows the fixing component to dynamically adjust its length. The telescopic plug can be extended or retracted within the rolling pipe, enabling the window curtain to adapt to different window widths while maintaining a relatively simple overall structure.
Solution Approach 2:
The fixing system is segmented into a rolling pipe, telescopic plug, and expansion mechanism. This segmentation allows the telescopic portion to independently adjust its length to match different window widths, while the rest of the structure remains simple and standardized.
3Reliability
If screws are used to fix the window curtain, then the fixation is secure, but the wall surface is damaged
Solution Approach 1:
The patent removes the drilling operation from the fixation process by using a telescopic plug that inserts directly into the rolling pipe and expands against the wall without creating holes. This extracts the harmful drilling action while preserving the secure fixation function.
Solution Approach 2:
The telescopic plug acts as an intermediary between the rolling pipe and the wall surface. It transfers the fixation force through friction and expansion pressure without requiring direct penetration into the wall, thereby avoiding damage while maintaining security.
4Ease of manufacture
If the window curtain uses a fixed fixation system, then the installation is straightforward, but it cannot be easily disassembled
Solution Approach 1:
The telescopic mechanism allows the fixing component to transition between a compact inserted state for easy installation and an extended removable state for easy disassembly. The same dynamic mechanism that enables length adjustment also facilitates quick removal by simply retracting the telescopic plug.
5Ease of operation
If the window curtain length is greater than the window width, then it provides better coverage, but it cannot be installed between the walls
Solution Approach 1:
The telescopic fixation system allows the effective span between fixing points to be dynamically adjusted. The telescopic plugs at each end can be positioned at different extension lengths, enabling installation on windows where the curtain length exceeds the window width by accommodating the extended overhang.
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
Facilitates quick and simple assembly and disassembly, adapts to windows of various widths, and enhances the application scope by eliminating the need for drilling, ensuring stable and convenient installation and operation.
Implementation Method 1
a fixing plug component for pressing a wall surface to increase frictional force
Implementation Method 2
a thrust spring disposed between the fixing plug component and the screw cylinder; and the thrust spring penetrates through the interior of the screw cylinder
Data Source
Figure 1
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AI summary
Provided is a roller shutter which is convenient to mount, comprising a roller shutter body (1) with a reel pipe (2), wherein a positioning sleeve (41) embedded in the reel pipe (2) and a retractable fixing assembly (4) located in the positioning sleeve are arranged on at least one end of the roller shutter body (1); the positioning sleeve (41) is fixedly connected to the reel pipe (2); the positioning sleeve (41) and the retractable fixing assembly (4) can rotate in a relative manner; and the retractable fixing assembly (4) comprises a self-locking retractable mechanism and a retaining plug assembly for bearing against a wall surface to increase a friction force. The roller shutter is convenient to mount and dismount, and the distance between fixed points at two sides of the roller shutter can be adjusted according to the width of a window.