Movable Protective Grille with Pressurized Fluid Cavity
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Solution Overview
Problem
Existing permanently installed window grilles are ineffective in preventing break-ins as they can be easily bypassed once the alarm fluid escapes, do not deter burglars, and require complex installation and maintenance, while also obstructing light and space.
Innovation Solution
A movably mounted protective grille with interconnected lattice elements forming a sealed cavity filled with pressurized fluid, which erupts explosively upon attempted breach, combined with a locking mechanism and flexible design for easy installation and maintenance, providing surprise and deterrent effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanently installed window grille is used, then protection against burglary is provided, but light entry is significantly reduced and escape routes are blocked
Solution Approach 1:
The protective grille is designed to be movable rather than permanently fixed, allowing it to be positioned in different states (open/closed) to balance security needs with light entry and escape route requirements
2Reliability
If a permanently installed window grille with alarm fluid is used, then break-in attempts are detected, but the alarm function becomes unavailable after fluid escape and requires laborious repair
Solution Approach 1:
The protective grille is divided into modular lattice elements that can be independently replaced. When a bar is compromised and fluid escapes, only the affected segment needs to be removed and replaced, rather than repairing the entire structure
Solution Approach 2:
The design accepts that fluid escape indicates bar compromise, and the solution is to discard the compromised bar and replace it with a new one, restoring the system quickly without complex repair procedures
3Illumination intensity
If a movable protective grille is used, then light entry and escape routes are maintained, but the structure requires simpler installation and maintenance
Solution Approach 1:
The grille consists of modular lattice elements with standardized connections, enabling simple assembly and disassembly without requiring complex manufacturing or installation procedures
Solution Approach 2:
The movable design with standardized mounting allows for easy installation and repositioning, reducing installation complexity while maintaining the benefits of light entry and escape route access
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 effectively prevents break-ins by surprising burglars with an explosive fluid release, reducing motivation for future attempts, and offering easy installation, maintenance, and dual functions like sun protection, while minimizing material usage.
Implementation Method 1
a pressurized fluid (12) is placed in the common sealed cavity formed by the lattice elements (21, 22) as a protective agent. The fluid (12) escapes from the interior of the protective grille as a protective agent when the cavity is opened without permission
Data Source
Figure 1a~1c
Figure 2a~2c
Figure 3a~3d
AI summary
The invention relates to a movable protective grille (1), in particular designed as a rolling or scissor grille, with interconnected grille elements (21, 22, 26, 27), wherein at least two of the interconnected grille elements (21, 22) are hollow and form a common enclosed cavity into which a pressurized fluid (12) is introduced as a protective element. The invention also relates to a method for hindering an attempted break-in using this protective grille.