Reinforced Filter Element Sealing to Prevent End Packing Damage
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Solution Overview
Problem
Existing filter elements and strainers face issues where the elastic members at the filtration section ends are prone to damage, leading to potential leaks of unfiltered liquid due to stress concentration and interference with the filtration section.
Innovation Solution
The solution involves incorporating annular elastic members with internal plate-shaped reinforcing plates at both ends of the filtration section, which are designed to prevent damage by distributing stress and ensuring the elastic members deform uniformly, thereby preventing leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic members are provided at both ends of the filtration section to enable sealing, then sealing performance is improved, but the elastic members are prone to damage due to stress concentration from the filtration section
Solution Approach 1:
A reinforcing plate is introduced as an intermediary component between the filtration section and the elastic member. The reinforcing plate has a groove that receives the end of the filtration section, preventing direct contact and stress concentration on the elastic member. This mediator distributes the stress and protects the elastic member from damage while maintaining the sealing function.
Solution Approach 2:
The reinforcing plate is installed beforehand to cushion and distribute the stress that would otherwise concentrate on the elastic member. The plate structure with its groove design provides preemptive protection against the harmful stress concentration effect, allowing the elastic member to function without being damaged by the filtration section.
2Manufacturing precision
If the end of the filtration section is inserted into the groove of the elastic member to secure positioning, then positioning accuracy is improved, but stress concentrates on the abutment portion causing damage
Solution Approach 1:
The reinforcing plate acts as an intermediary between the filtration section and the elastic member. The groove on the reinforcing plate receives the filtration section end, providing accurate positioning while preventing direct stress transfer to the elastic member. This mediator structure maintains positioning accuracy without causing stress concentration damage.
3Device complexity
If the filtration section directly contacts the elastic member for support, then structural simplicity is improved, but the elastic member is damaged by interference from the filtration section
Solution Approach 1:
The reinforcing plate is introduced as a simple intermediary component that prevents direct contact between the filtration section and the elastic member. This additional element, while slightly increasing structural complexity, is necessary to protect the elastic member from damage and ensure reliable operation.
Solution Approach 2:
The reinforcing plate provides beforehand cushioning by distributing the stress from the filtration section before it can concentrate on and damage the elastic member. This preemptive stress distribution mechanism ensures the elastic member maintains its integrity throughout operation.
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 design effectively prevents damage to the elastic members, ensuring reliable sealing and extending the life of the strainer by maintaining a secure fit and increasing the filter area through the use of rectifying members.
Implementation Method 1
The packing has elasticity and is gaplessly fitted to the main body case by the elasticity
Data Source
Figure 1
Figure 2
Figure 3(A)~3(B)
AI summary
Damage of elastic members provided at both ends of a filtration section can be prevented. A cylindrical filtration section and the annular elastic members provided at both ends of the filtration section are provided. A plate-like reinforcing plate is provided inside the elastic member. The reinforcing plate has an annular shape when viewed along an axis of the filtration section. Alternatively, a plurality of the reinforcing plates are disposed along a circle centered on the axis of the filtration section when viewed along the axis.