Double-Walled Cassette for Hazardous Liquid Storage
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Solution Overview
Problem
Existing assembly and repair devices for vehicles are complex, expensive, and prone to failure when handling liquid dangerous goods, requiring separate storage rooms and underground pipes, which are difficult to install and offer limited environmental protection.
Innovation Solution
A double-walled assembly and repair device with an integrated hermetically sealed collection space for hazardous liquids, eliminating the need for separate storage rooms and underground lines, and providing enhanced fire resistance and environmental safety through a collection container system that can be permanently installed in the cassette.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate storage rooms and underground pipes are used for hazardous liquids, then fire protection requirements are met, but device complexity and installation difficulty increase significantly
Solution Approach 1:
The patent merges the storage function for hazardous liquids directly into the assembly pit structure by creating an integrated collection space with hermetic sealing. This eliminates the need for separate storage rooms and underground pipes, reducing system complexity while maintaining fire protection through the double-walled construction and sealing mechanisms.
Solution Approach 2:
The collection container for hazardous liquids is nested within the collection space that is itself integrated into the double-walled cassette structure. This nested arrangement allows the storage function to be contained within the existing pit structure, eliminating external storage requirements while maintaining safety through multiple containment layers.
2Object-affected harmful factors
If separate storage rooms are used for hazardous liquids, then environmental protection is improved, but space requirements and construction effort increase
Solution Approach 1:
The patent combines the hazardous liquid storage function with the assembly pit structure by creating an integrated collection space. This eliminates the need for separate storage rooms, reducing total space requirements while maintaining environmental protection through hermetic sealing and the double-walled construction that prevents leakage.
Solution Approach 2:
The collection space is designed as a lateral expansion of the cassette rather than a separate vertical structure. This dimensional integration allows the storage capacity to be added within the footprint of the existing pit, avoiding additional space requirements while maintaining environmental safety through the hermetically sealed double-walled design.
3Quantity of substance
If collection containers are placed inside the pit, then storage functionality is improved, but movement space within the pit is restricted
Solution Approach 1:
The collection container is nested within the collection space formed by the double-walled cassette structure. This nesting arrangement allows the storage container to occupy the space between the inner and outer walls, providing storage capacity without encroaching on the working area where personnel need to move.
Solution Approach 2:
The collection space is created as a lateral expansion between the double walls rather than occupying the central vertical space of the pit. This dimensional arrangement allows storage functionality to be added in the wall thickness dimension, preserving the central area for personnel movement and operations.
4Reliability
If double-walled construction with integrated collection space is used, then fire resistance is enhanced, but manufacturing complexity increases
Solution Approach 1:
The cassette is constructed with segmented double walls (inner wall and outer wall) that are arranged at a distance from each other to form the collection space. This segmentation provides inherent fire resistance through the air gap and can be manufactured as separate components that are assembled together, reducing overall manufacturing complexity compared to monolithic fire-resistant structures.
Solution Approach 2:
The double-walled construction serves multiple functions simultaneously: it provides fire resistance through the air gap, creates the hermetically sealed collection space for hazardous liquids, and maintains structural integrity. This multi-functionality reduces the need for separate fire protection structures, simplifying manufacturing while enhancing fire resistance.
Data Source
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AI summary
The assembly and repair device (1) has one-or-multi cartridge (5) that is made of steel or corrosion-resistant material with an interior, and is arranged in a bottom recess. Two longitudinal side walls (7,9) are arranged at the front end walls (35) and bottom planes (11,E). The outside wall (15) of the side walls and end walls is equipped with a defining cavity for receiving a curable filling material. A separate collector area (29) of cartridge is provided for receiving a collecting container (31) for accommodating the liquid hazardous material.