Curved Nozzle with Rotating Water Connection
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Solution Overview
Problem
The challenge is to design a sanitary washing apparatus with a lower silhouette that prevents liquid waste and dirt from accumulating in the casing when the nozzle is curved upward, while maintaining effective water supply and movement without interfering with the casing's components.
Innovation Solution
The apparatus features a private part washing nozzle curved upward in a convex shape, with a rotating incoming water connection part that positions the water supply under the nozzle, ensuring that liquid waste does not flow backward and dirt accumulates in the casing, and a multistage nozzle design that stores water discharge ports inside the first cylinder portion to prevent dripping and accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the nozzle is curved upward in a convex shape to lower the silhouette height, then the height of the sanitary washing apparatus is reduced, but liquid waste may flow backward along the nozzle outer surface and accumulate in the casing
Solution Approach 1:
The nozzle is curved upward in a convex shape along the arc-shaped virtual orbit, changing the spatial orientation of the nozzle from a straight horizontal position to a curved upward trajectory. This dimensional change in the nozzle's path allows the apparatus to achieve a lower silhouette height while the rotational movement of the incoming water connection part ensures water supply remains effective throughout the curved motion
2Length of stationary object
If the nozzle is curved upward in a convex shape, then the silhouette height is reduced, but the incoming water connection and tube routing becomes more complex to prevent dirt diffusion
Solution Approach 1:
The incoming water connection part is designed to rotate dynamically in accordance with the advance and retreat action of the nozzle. It rotates from a first rotation position in the stored state to a second rotation position during advance, allowing the connection portion to move from a backward side position to an upward side position. This dynamic adjustment simplifies the tube routing compared to a fixed complex arrangement, as the rotation follows the natural motion trajectory of the nozzle
3Reliability
If the incoming water connection part rotates to accommodate nozzle movement, then water supply continuity is maintained, but the connection part and tube may interfere with casing components
Solution Approach 1:
The incoming water connection part serves multiple functions: it supplies water to the nozzle, rotates to accommodate nozzle advance and retreat motion, and positions the connection portion to avoid interference with casing components. The rotational mechanism allows the same component to adapt to different operational states (stored and advanced positions) while maintaining water supply continuity and avoiding interference
Data Source
AI summary
According to one embodiment, a sanitary washing apparatus includes a private part washing nozzle configured to wash a human body private part, a tube configured to supply water to the private part washing nozzle, an incoming water connection part connected to an upstream side of the tube and configured to supply water to the tube, a casing storing the private part washing nozzle, the tube, and the incoming water connection part, and a nozzle wash part configured to wash the private part washing nozzle. The private part washing nozzle is curved upward to be convex, and has a first region positioned frontward of the nozzle wash part in an advanced state in which the private part washing nozzle advances from the casing. The incoming water connection part is provided under the private part washing nozzle, and is rotatable.