Water Outlet Fitting Structure for Full-Flow Hose Routing
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Solution Overview
Problem
The existing fitting structures for water outlet devices, such as pull-out type faucets, face challenges in accommodating all five hoses (cold water inlet, hot water inlet, mixing water outlet, raw water inlet, and pure water outlet) through standard mounting holes due to size constraints, often requiring hoses to be made thinner, which restricts water flow.
Innovation Solution
A fitting structure comprising a fixed block, multiple hoses, and joints with coaxial first and second water outlet passages, where the joints are staggered radially and outwardly, allowing the hoses to pass through a standard 29.5 mm mounting hole without reducing their diameters, ensuring sufficient space for all hoses and a pulling pipe, and maintaining optimal water flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If five hoses are connected to the valve core and mounted through a standard mounting hole (29.5 mm diameter), then the water outlet device can be installed, but the hoses cannot be completely gathered together and their diameters are restricted, resulting in reduced water flow
Solution Approach 1:
The patent introduces a multi-dimensional spatial arrangement by using a fixed block with multiple position holes distributed in different spatial locations. The hoses are routed through these position holes and connected to joints that extend in different directions, effectively utilizing three-dimensional space to accommodate all five hoses without compromising their diameters, while still passing through the standard mounting hole.
Solution Approach 2:
The patent implements a nested structure where hoses are inserted through position holes in the fixed block, connected to joints, and then gathered together to pass through the mounting hole. The joints are disposed within or around the hoses, creating a nested arrangement that allows all components to fit through the constrained mounting hole diameter while maintaining hose integrity.
2Ease of operation
If hoses are made thinner to fit through the mounting hole, then installation is enabled, but water flow is restricted
Solution Approach 1:
The patent segments the hose assembly into multiple independent components: individual hoses connected to specific joints, with each joint having separate water outlet passages. This segmentation allows each hose to maintain its full diameter and water flow capacity while being independently routed through position holes and connected to joints that are staggered radially and outwardly, enabling all segments to pass through the standard mounting hole without size reduction.
3Area of stationary object
If multiple hoses are gathered together to pass through a small mounting hole, then space utilization is improved, but the hoses cannot maintain their proper diameters
Solution Approach 1:
The patent employs asymmetric design in the arrangement of position holes and joints. The joints are staggered radially and outwardly from the fixed block, creating an asymmetric spatial distribution that optimizes the gathering of hoses. This asymmetric arrangement allows hoses to be collected efficiently for mounting hole passage while each hose maintains its proper diameter and manufacturing precision is preserved.
Data Source
AI summary
Disclosed is a fitting structure of a water outlet device. The fitting structure comprises a fixed block, hoses, and joints. A peripheral of the fixed block comprises first position holes configured to be fixedly disposed with the hoses. The joints are fixedly connected to first ends of the hoses disposed above an upper surface of the fixed block, and each of the joints comprises a first water outlet passage and a second water outlet passage in communication with the first water outlet passage. An axis of each of the first water outlet passages and an axis of a corresponding one of the hoses is coaxial. The second water outlet passage is parallel to and is staggered with the first water outlet passage by a preset distance. The joints are staggered with the hoses by the preset distance in a radial direction and an outward direction of the fixed block.