Flow Limiting Device Back Flow Prevention Mechanism
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Solution Overview
Problem
Current flow limiting devices in sanitary ware lack a back flow prevention mechanism, leading to instability and potential deformation when back flow occurs, resulting in reduced effectiveness and shorter service life.
Innovation Solution
A flow limiting device with a back flow prevention mechanism, featuring a body with an isolation board and water-through cavity, stop ribs, and a supporting structure that includes a connection part and deformation part to prevent radial deviation and support the back flow prevention component, ensuring the flow limiting component remains stable and functional.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a back flow prevention mechanism is added to the flow limiting device, then the reliability and service life are improved, but the device complexity increases
Solution Approach 1:
The back flow prevention component is integrated into the flow limiting device by fixing it in the water-through hole, combining two functions (flow limiting and back flow prevention) into a single integrated structure. This reduces the number of separate components while maintaining the reliability improvement.
Solution Approach 2:
The back flow prevention component is divided into a connection part and a deformation part, with the deformation part further formed by circumferential extension. This segmentation allows the component to perform multiple functions (supporting, preventing back flow, and limiting radial deviation) while keeping the overall structure manageable.
2Stability of the object's composition
If a supporting structure is added to support the back flow prevention component, then the stability is improved, but the device complexity increases
Solution Approach 1:
The supporting structure serves multiple functions: it supports the back flow prevention component when expanding, limits radial deviation of the flow limiting component, and provides connection between different parts of the device. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The supporting structure is integrated with existing components of the flow limiting device, such as being formed by extension of the isolation board or cover body, rather than being a completely separate component. This merging approach provides stability while minimizing additional complexity.
Data Source
AI summary
A flow limiting device with a back flow prevention mechanism includes a body that has an isolation board and a water-through cavity. The isolation board has a water-through hole connecting to the water-through cavity and a flow limiting device having a flow limiting component and stop ribs which limit the position change of the flow limiting component. The stop ribs are arranged on the inner wall of the water-through cavity at equal intervals. The flow limiting component is set in the water-through cavity. The outer side of the flow limiting component is contacted on the stop ribs. A back flow prevention mechanism comprises, a back flow prevention component which is fixed in the water-through hole and a supporting structure which is set for supporting the back flow prevention component when it expands on the inner wall of the water-through cavity.