Split-Type Double-Handle Faucet With Plastic Valve Core Insulation
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Solution Overview
Problem
Traditional double-handle faucets face issues with high production costs, scalding from hot water, freezing and cracking at low temperatures, and corrosion due to material limitations, affecting user safety and product competitiveness.
Innovation Solution
A split-type double-handle faucet design featuring a plastic core base and valve core with a handle assembly, where the plastic components provide heat insulation, elasticity, and improved corrosion resistance, reducing scalding and freezing risks while lowering production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copper or stainless steel materials are used in traditional faucets, then corrosion resistance and structural strength are improved, but production cost and manufacturing time increase
Solution Approach 1:
The patent employs composite material construction by combining plastic components (valve core, handle assembly) with metal components (mounting base, connecting pieces). This composite approach allows the faucet to achieve corrosion resistance where needed while reducing overall production costs through the use of plastic for non-structural and non-water-contact components.
Solution Approach 2:
The patent applies local quality by using different materials for different parts of the faucet based on their specific functional requirements. Plastic is used for components requiring corrosion resistance and cost-effectiveness, while metal is used for structural support and mounting components requiring strength and durability.
2Strength
If copper or stainless steel valve cores are used, then structural strength is improved, but susceptibility to freezing and cracking at low temperatures increases
Solution Approach 1:
The patent changes the material parameter of the valve core from metal to plastic, which fundamentally alters the thermal properties. Plastic materials have better flexibility and elasticity at low temperatures, preventing the freezing and cracking issues that affect metal valve cores in cold environments.
Solution Approach 2:
The use of plastic for the valve core and handle assembly creates a composite structure that is inherently more resistant to thermal expansion and contraction, thereby preventing freezing and cracking in low-temperature conditions while maintaining sufficient structural strength for faucet operation.
3Strength
If metal handle assemblies are used, then structural strength is improved, but heat conduction from hot water causes scalding risk
Solution Approach 1:
The patent introduces plastic as an intermediary material between the hot water flow and the user's hand. The plastic handle assembly acts as a thermal barrier, blocking heat conduction from the hot water while still allowing mechanical operation of the valve. This intermediary material protects users from scalding without compromising the structural functionality of the handle.
Solution Approach 2:
The composite construction with plastic handle assemblies provides thermal insulation properties that metal alone cannot offer, effectively reducing heat conduction to the user's hand while maintaining the necessary structural strength for operation.
4Duration of action of stationary object
If traditional metal faucet components are used, then durability is improved, but production time and manufacturing complexity increase
Solution Approach 1:
The patent changes the material parameter from metal to plastic for several components, which significantly reduces manufacturing time. Plastic components can be produced through injection molding and other efficient processes, eliminating the need for time-consuming metalworking operations such as machining, welding, and assembly, while still providing sufficient durability for faucet application.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively reduces scalding risks, prevents freezing and cracking, and enhances corrosion resistance, ensuring user safety and reducing production costs while maintaining structural integrity.
Implementation Method 1
the plastic core base and the plastic valve core can play the role of heat insulation, that is, when the hot water flows in through the fluid inlet port and then flows out from the fluid outlet port, the plastic core base and the plastic valve core can block the heat and reduce the heat transferred to the handle
Implementation Method 2
the plastic core base and the plastic valve core are made of plastic, so they have better elasticity, when the temperature is below zero degrees Celsius, it is not easy to freeze and crack
Data Source
AI summary
A faucet with split-type double-handle includes: a water outlet assembly, a control unit and a pipeline connecting assembly. The water outlet assembly includes a water outlet pipe and a mounting structure for fixing the water outlet pipe. The control unit includes two handle assemblies, each including a handle, a mounting base, a plastic core base, a plastic valve core and a compressing member. The plastic core base includes a fluid inlet port and a fluid outlet port. The mounting base is non-rotatably sleeved outside the plastic core base. The compressing member is connected to the plastic core base and presses the plastic valve core in the plastic core base. The plastic valve core is rotatable but not axially movable relative to the core base. The handles are connected to the plastic valve core. The pipeline connecting assembly includes two fluid outlet pipes both connected to the water outlet pipe.