Screw-Assembly Explosive Cartridge Piercing Mechanism
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Solution Overview
Problem
Existing two-component explosive systems face challenges in ensuring the quality and safety of on-site production, particularly due to manual mixing and handling of flammable and corrosive liquids, which can lead to errors and safety risks.
Innovation Solution
A system comprising a large tank and a small tank, designed to be assembled by screwing, where the screwing action pierces the tank walls to mix the liquids, ensuring no manual contact and better control over the assembly, with a configuration that separates the screwing and drilling areas to prevent liquid exposure and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual mixing and handling of liquid components is used, then flexibility and simplicity are maintained, but safety risks and error rates increase due to direct contact with flammable and corrosive substances
Solution Approach 1:
The system enables self-service operation where the cartridge automatically mixes the two liquid components through the screwing action itself, which pierces the separating wall. The user simply assembles the cartridge without manual mixing or handling of the reactive liquids, eliminating direct contact with hazardous substances while maintaining operational simplicity.
Solution Approach 2:
The cartridge is segmented into two separate tanks (first tank with first liquid product, second tank with second liquid product) that are kept isolated during storage and transport. The segmentation prevents premature mixing and allows safe handling of individual non-reactive components, while the mixing function is integrated into the assembly process itself.
2Manufacturing precision
If pre-dosing of liquid components is implemented in factory, then manufacturing precision and product quality improve, but device complexity increases due to additional dosing mechanisms
Solution Approach 1:
The dosing function is merged with the assembly function. The act of screwing the second tank into the first tank simultaneously performs two operations: (1) pierces the separating wall to enable mixing, and (2) provides the mechanical force to drive the piercing element through the wall. This eliminates the need for separate dosing mechanisms while maintaining precise factory-prepared dosing.
Solution Approach 2:
The system uses self-service dosing where the piercing element, pre-positioned in the first tank, automatically performs the mixing function when the user executes the normal assembly operation. The dosing is precisely controlled in factory, and the assembly process itself activates the mixing without requiring additional user actions or complex mechanisms.
3Ease of operation
If piercing and mixing operations are performed manually, then ease of operation is maintained, but safety decreases due to exposure to dangerous products during the process
Solution Approach 1:
A piercing element acts as an intermediary between the two liquid products. This element is pre-positioned in the first tank, isolated from the second liquid product until assembly. During assembly, the piercing element pierces the separating wall and enables mixing, but the user never directly handles or contacts the reactive liquids. The intermediary mechanism protects the user from harmful exposure while facilitating the mixing operation.
Solution Approach 2:
The mixing operation is performed self-service through the assembly action itself. The screwing motion automatically drives the piercing element through the separating wall, initiating mixing without requiring the user to manually puncture or open any containers. The hazardous mixing process occurs automatically during normal assembly, eliminating user exposure to dangerous products.
4Reliability
If assembly by screwing is used instead of percussion, then safety improves by avoiding shock and air return, but manufacturing complexity increases due to precise threading requirements
Solution Approach 1:
The screwing assembly mechanism serves multiple functions simultaneously: (1) joins the two tanks together to form the complete cartridge, (2) drives the piercing element through the separating wall to enable mixing, and (3) provides controlled, shock-free assembly. This multi-functionality eliminates the need for separate joining and mixing mechanisms, reducing overall device complexity despite the threading requirements.
Solution Approach 2:
The joining function and mixing function are merged into a single screwing operation. The threading elements are integrated into the tank designs such that the act of screwing the tanks together simultaneously positions and actuates the piercing element. This merging reduces the number of separate components and operations needed, offsetting the complexity introduced by the threading requirements.
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
This configuration ensures precise dosing and improved safety by eliminating manual handling, reducing the risk of errors and ensuring reliable sealing, while allowing for controlled mixing and assembly of multiple cartridges, enhancing the quality and safety of the explosive product.
Implementation Method 1
screwing pierces two parts of the walls of the two tanks respectively, thus authorizing an explosive mixture of the two said first and second liquid products
Data Source
Figure 1A~1B
Figure 2A
Figure 2B
AI summary
The present invention relates to a set of tanks (A, B) comprising a large tank containing a first liquid product (A) and a small tank containing a second liquid product (B), ready to be assembled by screwing to form a two-component explosive cartridge (1a, 1b), such that said screwing pierces two portions of the walls (3d, 4c) of the two tanks respectively, thus allowing an explosive mixture of the two said first and second liquid products.