Foldable Bulletproof Shield with Elastic Deployment
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Solution Overview
Problem
Existing foldable bulletproof devices for personal use lack convenience and ease of operation, particularly for drivers who need to deploy them quickly in small spaces, due to simple structures and insufficient folding mechanisms.
Innovation Solution
A foldable bulletproof shield with a soft shield plate that deforms for folding, integrated with an unfolding power device and control mechanism, allowing rapid transition between folded and unfolded states, and featuring a handle for easy grip and operation, utilizing materials like metal springs or nickel-titanium alloys for power and elastic shield blocks for enhanced stability and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional hinge-based foldable bulletproof device is used, then the structure is simple, but the folding capability is insufficient and operation is inconvenient in narrow spaces
Solution Approach 1:
The shield plate is divided into multiple detachable shield blocks that can be separated and reconfigured. This segmentation allows the shield to be folded into a compact state for easy storage in narrow spaces while maintaining full protective capability when deployed. The detachable nature of the blocks enables one-handed operation without requiring complex hinge mechanisms.
Solution Approach 2:
The bulletproof shield transitions from a static rigid structure to a dynamic reconfigurable system. The shield blocks can dynamically change their spatial arrangement between a compact folded state for storage and an extended protective state for use. This dynamic capability is achieved through elastic connection structures that allow flexible transformation without complex mechanical hinges.
2Stability of the object's composition
If a rigid shield plate is used, then the structural integrity is maintained, but the folding capability is limited
Solution Approach 1:
The rigid shield plate is segmented into multiple rigid shield blocks that maintain their individual structural integrity. Each block retains its bulletproof protective properties while the segmented structure as a whole becomes foldable. The rigid blocks are connected through elastic elements that allow folding without compromising the rigidity or protective capability of the individual blocks.
Solution Approach 2:
The shield combines rigid bulletproof shield blocks with flexible elastic connection elements (such as elastic bands or spring structures). This composite construction allows the rigid protective blocks to maintain structural integrity while the elastic connections enable folding and compact storage. The combination of rigid and flexible materials resolves the contradiction between maintaining rigidity and achieving foldability.
3Loss of time
If the shield is designed for rapid deployment, then the response time is reduced, but the control mechanism becomes more complex
Solution Approach 1:
The shield employs self-service mechanisms where the elastic connection elements automatically propel the shield blocks into their deployed protective position when released. The elastic bands or spring structures store potential energy in the folded state and automatically convert it to kinetic energy during deployment, eliminating the need for complex motorized control systems or manual assembly operations. This achieves rapid deployment through simple release mechanisms rather than complex control systems.
Solution Approach 2:
The elastic connection elements are pre-loaded with potential energy during the folding process, preparing the shield for rapid deployment. When the user releases the shield, the pre-stored elastic energy immediately drives the shield blocks into their protective configuration. This preliminary action of storing energy during folding enables instant deployment without requiring complex real-time control mechanisms.
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 provides a compact, easily deployable bulletproof shield that maintains structural integrity and protection, allowing for efficient one-handed operation in tight spaces, with improved resistance to external forces and ballistic threats.
Implementation Method 1
a metal spring or a nickel-titanium memory alloy superelastic wire or a superelastic sheet can be selected
Implementation Method 2
nickel-titanium memory alloy superelastic wire or a superelastic sheet
Implementation Method 3
the soft shield plate to better resist against external forces including gravity
Data Source
AI summary
The existing personal bulletproof equipment has the disadvantages such as a simple structure, insufficient folding and lack of an automatic opening function, and is thus not suitable for one-handed operations in a narrow and small space inside a vehicle. A foldable bulletproof shield disclosed in the present invention comprises a shield plate, a handle, an unfolding power device and an unfolding control device. The folding of the shield plate is realized by means of its own deformation. The unfolding power device is an elastic force device or an elastic structure provided in the foldable shield plate. The unfolding control device is composed of a button, a buckle, a strap, etc. and is integrated with the handle, such that a user enables the bulletproof shield to rapidly switch from a folded state to an unfolded state with one-handed operations.