Sliding Flushing Nozzle With Manipulatable Cover
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Solution Overview
Problem
Existing flush water nozzles are difficult for laypersons to maintain due to the requirement of mechanical skills for disassembly and cleaning, as they are designed to be interchangeable but lack simplicity in removal processes.
Innovation Solution
A flush water nozzle arrangement with a cover element that can be manipulated to move the nozzle from a usage position to a maintenance position, featuring a locking mechanism that allows for easy disassembly without additional components, and a locking tab that prevents accidental removal, simplifying the structure and maintenance process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the flushing water nozzle is designed to be interchangeable for maintenance, then the ease of repair is improved, but the device complexity increases due to additional locking mechanisms and components
Solution Approach 1:
The cover element is merged with the flushing water nozzle to form an integrated assembly. The cover element serves dual functions: protecting the nozzle in normal operation and acting as the actuating element for removal/maintenance. This integration eliminates the need for separate actuating mechanisms, reducing overall device complexity while maintaining ease of repair.
Solution Approach 2:
The cover element is designed with multi-functionality: it serves as a protective cover during normal operation, an actuating element for removal/maintenance operations, and part of the locking mechanism through its interaction with the locking section. This multi-functionality reduces the number of separate components needed, simplifying the overall structure while enabling easy maintenance.
2Ease of operation
If the nozzle outlet protrudes from the line piece for free access, then the ease of operation is improved, but the reliability decreases due to risk of accidental removal
Solution Approach 1:
The locking mechanism is designed to be dynamic rather than static. The locking section and locking tab engage to secure the nozzle in normal operation, but can be easily disengaged when the cover element is manipulated. This dynamic locking provides stability during operation while allowing intentional removal for maintenance, resolving the contradiction between accessibility and stability.
3Reliability
If additional locking structures are added between the nozzle and line piece to prevent accidental removal, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The locking function is merged into the cover element assembly rather than being a separate mechanism between the nozzle and line piece. The locking section on the cover element interacts with the locking tab on the nozzle to provide the anti-accidental removal function. This integration simplifies the overall structure by eliminating the need for additional separate locking structures.
Data Source
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AI summary
A flushing nozzle assembly (1) for a sanitary article (2), in particular for a urinal or a toilet, comprises a flushing nozzle (3) having a nozzle channel (5) extending along a central axis (M) and bounded by a side wall (4), with at least one nozzle inlet (6) and at least one nozzle outlet (7), and a conduit section (8) having an interior space (9), wherein the flushing nozzle (3) is slidably mounted in the interior space (9) from a service position to a maintenance position, and wherein the at least one nozzle outlet (7) projects out of the interior space (9) beyond a front end (10) of the conduit section (8) in the service position, and wherein the flushing nozzle assembly (1) further comprises a cover element (11) which partially covers the areas of the flushing nozzle (3) projecting out of the interior space (9).The cover element (11) is connected to the flushing nozzle (3) in such a way that the flushing nozzle (3) can be moved relative to the pipe section (8) when the cover element (11) is manipulated. Furthermore, the cover element (11) and the pipe section (8) each have a locking section (12, 13), whereby a snap-fit connection between the cover element (11) and the pipe section (8) can be provided via the two locking sections (12, 13). This snap-fit connection can be locked for use, when the flushing nozzle (3) is in its operating position, and unlocked for maintenance, when the flushing nozzle (3) is to be moved from the operating position to the maintenance position.