Shower Flow Switching Shaft Layout for Compact Multi-Outlet Routing
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Solution Overview
Problem
Existing flow passage switching devices have complex structures and occupy large spaces due to the limited layout of outflow passages, which is caused by the need for multiple water dividing holes to cooperate with multiple water outlet holes.
Innovation Solution
A flow passage switching device with a switching shaft that has multiple water dividing holes circumferentially and radially arranged, allowing for flexible coupling of outflow passages with the inflow passage, and a compact design that includes a valve member with a mounting chamber and sealing gasket for efficient sealing and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple water dividing holes are arranged to cooperate with multiple water outlet holes, then the flow passage switching function is achieved, but the structure becomes complex and occupies large space
Solution Approach 1:
The patent transitions from a two-dimensional circumferential arrangement of water dividing holes to a three-dimensional arrangement that includes both circumferential distribution and axial spacing. The switching shaft has water dividing holes at different positions along its length, allowing multiple outflow passages to be connected without requiring all holes to be arranged in a single plane, thus reducing structural complexity while maintaining switching functionality
Solution Approach 2:
The switching shaft is divided into multiple sections along its axial length, with different groups of water dividing holes positioned at different locations. Each section can independently connect to corresponding outflow passages, allowing the switching function to be distributed across multiple segments rather than requiring a single complex arrangement
2Adaptability or versatility
If multiple water dividing holes are arranged to cooperate with multiple water outlet holes, then the flow passage switching function is achieved, but the space occupied increases
Solution Approach 1:
By utilizing the axial dimension of the switching shaft in addition to circumferential arrangement, the patent compactly packs multiple water dividing holes along the length of the shaft. This three-dimensional arrangement reduces the overall volume required compared to spreading all holes in a single circumferential plane, thereby reducing the space occupied while maintaining the ability to switch between multiple flow passages
3Ease of operation
If water dividing holes are circumferentially arranged around the switching shaft axis, then the switching function is improved, but the outflow passage layout becomes limited
Solution Approach 1:
The patent adds the axial dimension to the traditional circumferential arrangement of water dividing holes. Holes are positioned at different heights along the switching shaft, enabling outflow passages to be arranged in both circumferential and axial directions. This provides greater layout flexibility for connecting to multiple outflow passages while preserving the rotational switching mechanism
Data Source
AI summary
The present invention discloses a flow passage switching device and a water outlet device. The water outlet device comprises a flow passage switching device, a hand-held shower and a head shower. The switching device comprises a valve member and a switching shaft. The switching shaft is disposed in the valve member and rotatable relative to the valve member. The valve member is provided with an inflow passage and at least three outflow passages. The at least three outflow passages can be coupled with the inflow passage by selective switching of the switching shaft. The head shower is provided with at least two water outlet units, and the hand-held shower and the at least two water outlet units are respectively connected to the at least three outflow passages.