Refillable Ballistic Block Structure for Ricochet-Free Bullet Capture
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Solution Overview
Problem
Existing ballistic blocks made of solid rubber or rubber-polymer mixtures deteriorate quickly due to bullet channels, require frequent replacement, and pose safety risks from ricocheting bullets and lead dust, while existing refillable blocks lack tightness and necessitate precise monitoring, leading to frequent refilling and structural issues.
Innovation Solution
A ballistic block design featuring a prism shape with cut edges, finger-jointed walls, and internal recesses, allowing for self-refilling via gravity channels, and a modular wall construction with shifted layers to prevent overlap and enhance stability, using polymer plastics with polyurethane glue for connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If solid rubber blocks are used as ballistic blocks, then bullet capture function is provided, but bullet channels form quickly reducing ballistic properties and requiring frequent replacement
Solution Approach 1:
The ballistic block is divided into a shell structure with separate front wall, back wall, side walls, and bottom wall, creating a modular design where the shell can be reused and only the ballistic pellets need replacement. This segmentation prevents the entire block from deteriorating due to bullet channels.
Solution Approach 2:
The block uses a shell structure with through-holes and internal channels that allow ballistic pellets to be filled and distributed throughout the structure. The porous design enables bullets to be captured by pellets while maintaining structural integrity and allowing for refilling without replacing the entire block.
2Object-affected harmful factors
If steel plates are placed behind rubber blocks to stop bullets, then bullet stopping function is improved, but uncontrollable ricochets occur endangering safety
Solution Approach 1:
The invention converts the harmful ricochet effect into a beneficial containment system. The shell structure with specific wall thicknesses and the layered block arrangement capture ricocheting bullets within the structure, transforming the dangerous ricochet into a contained event that stops bullets safely without threatening operators.
Solution Approach 2:
The shell structure is designed with sufficient wall thickness and material properties to absorb and contain ricocheting bullets before they can escape. The structure provides预先 cushioning that prevents dangerous ricochets by design, eliminating the need for additional steel plates that would create uncontrolled ricochets.
3Duration of action of stationary object
If refillable ballistic blocks are used, then block lifespan is extended, but tightness of joints is difficult to maintain requiring precise monitoring and frequent refilling
Solution Approach 1:
The shell components are merged together using connection elements that integrate the walls into a unified structure. The finger joints combined with gluing and mounting pins create a tight seal without requiring complex monitoring systems, simplifying the overall assembly while maintaining joint tightness.
Solution Approach 2:
The shell structure is designed to be self-contained and self-sealing through its connection system. The finger joints with skew and mounting pins automatically maintain tightness without requiring external monitoring or adjustment, allowing the block to maintain its ballistic properties without complex supervision.
4Ease of manufacture
If ballistic blocks are made with joints between walls, then manufacturing is simplified, but joints become weak points allowing pellet release and channel formation
Solution Approach 1:
The finger joints are designed with skew and connection elements that pre-establish tight connections between walls during assembly. The mounting pins and gluing are applied in advance to ensure joints are sealed before the block is put into service, preventing pellet leakage and channel formation at joint locations.
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 design extends the block's lifespan, ensures safe bullet capture and self-refilling, eliminates ricochets, and reduces maintenance needs, making it suitable for high-impact environments like shooting ranges.
Implementation Method 1
When a bullet hits a steel plate, uncontrollable behaviour of the bullet occurs
Implementation Method 2
bullets form temporary channels and permanent channels inside it, reducing the ballistic properties of the block
Implementation Method 3
The partition wall is provided with through holes
Data Source
AI summary
A ballistic block in the shape of a prism, comprising a front wall (1), a back wall (2), side walls (3, 4) and a through space (5) intended to be filled with ballistic pellets. The object of the invention is also a ballistic wall (12) made of ballistic blocks (13).