Bidet Wand Nozzle Positive Coupling Leakage Prevention
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Solution Overview
Problem
Existing jet pipe apparatuses used in bidet sprayers or wands for plumbing fixtures often experience leakage and lack a secure, easy-to-use connection mechanism, which complicates their operation and effectiveness.
Innovation Solution
The apparatus features a jet pipe module with a nozzle connected via positive coupling features, such as buckling devices, including recesses and projections, that ensure a secure and easy-to-confirm connection, preventing leakage by providing a more robust attachment than friction alone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a friction-based connection mechanism is used between the jet pipe module and nozzle, then the device structure is simple, but the connection is not secure and leakage occurs
Solution Approach 1:
The connection mechanism is divided into two functional parts: a friction-based sealing structure and a positive coupling locking structure. The friction ring provides initial sealing and positioning, while the positive coupling features (protrusions and recesses) provide secure mechanical interlocking, preventing both leakage and accidental disconnection.
Solution Approach 2:
The connection mechanism combines two different coupling methods (friction and positive coupling) into a single integrated system. The friction ring material is selected to provide optimal sealing properties, while the positive coupling features provide structural integrity and mechanical strength, creating a composite connection solution that overcomes the limitations of using either method alone.
2Reliability
If a secure connection mechanism is implemented to prevent leakage, then the operational reliability improves, but the ease of operation deteriorates due to complicated assembly and disassembly
Solution Approach 1:
The friction ring is pre-installed on the jet pipe module before assembly with the nozzle. This preliminary action ensures that the sealing element is already in position, so that when the positive coupling features engage, the sealing is immediately effective without requiring additional steps or adjustments during final assembly.
3Reliability
If a positive coupling mechanism with buckling devices is used, then the connection security improves, but the device complexity increases
Solution Approach 1:
The positive coupling features are integrated directly into the existing jet pipe module and nozzle structures, rather than being added as separate components. The protrusions and recesses are formed as part of the molded plastic bodies, merging the coupling function with the structural components and avoiding additional parts that would increase complexity.
Data Source
AI summary
A bidet wand includes an arm and a nozzle. The arm includes one or more members, one or more connection tubes, and one or more inlet hoses. The one or more members are arranged in sequence from a first side to a second side and coupled to each other, the one or more members forming insertion portion at the first side. Each connection tube is coupled to and extends through the one or more members from the first side to the second side. Each inlet hose is coupled to one of the connection tubes at the second side and is configured to transfer water from a water source. The nozzle is configured to receive the insertion portion of the one or more members therein. The nozzle and the insertion portion include positive coupling features that are cooperatively configured to engage each other to couple the nozzle to the arm.