Double-Handle Faucet Plastic Valve Core Thermal Insulation
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Solution Overview
Problem
Existing double-handle faucets face issues with high production costs, susceptibility to scalding and freezing, and corrosion due to the use of copper and stainless steel, which also affect their competitiveness and reliability.
Innovation Solution
A double-handle faucet design utilizing a plastic core for thermal insulation and corrosion resistance, combined with zinc alloy and stainless steel components for structural strength and cost-effectiveness, along with a threaded connection and sealing rings to enhance functionality and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copper or stainless steel materials are used for faucet valves, then corrosion resistance and structural strength are improved, but production cost and manufacturing time increase
Solution Approach 1:
The patent uses a composite structure combining plastic valve cores with metal mounting bases and sleeves. The plastic cores provide corrosion resistance and thermal insulation, while the zinc alloy mounting bases and stainless steel sleeves provide structural strength. This composite approach reduces production cost compared to using solid copper or stainless steel valves while maintaining reliability through the corrosion-resistant plastic material and protective metal components.
Solution Approach 2:
The patent replaces expensive copper or stainless steel valve cores with cheaper plastic valve cores. The plastic material is significantly less costly than metal alternatives and can be mass-produced through injection molding, reducing manufacturing time and cost. The plastic cores are designed to be replaceable if needed, maintaining system reliability while reducing overall production cost.
2Strength
If copper or stainless steel materials are used for faucet valves, then structural strength is improved, but production time increases
Solution Approach 1:
The patent combines plastic valve cores with metal mounting bases and sleeves to achieve structural strength without the lengthy manufacturing processes required for solid metal valves. The plastic cores can be injection-molded quickly, while the metal components are separately manufactured and assembled, reducing overall production time compared to machining solid copper or stainless steel valves.
Solution Approach 2:
The valve assembly is divided into separate components: plastic valve cores, metal mounting bases, and stainless steel sleeves. Each component can be manufactured independently using optimized processes (injection molding for plastic, casting or machining for metal parts), then assembled together. This segmentation allows parallel production and reduces total manufacturing time compared to producing a single integrated metal valve.
3Ease of operation
If hot water control valve is used without thermal insulation, then operational simplicity is maintained, but scalding risk increases
Solution Approach 1:
The patent introduces plastic valve cores as thermal insulation intermediaries between the hot water supply and the external environment. The plastic material has low thermal conductivity, preventing heat transfer to the valve body and handle. This allows users to operate hot water valves without risk of scalding while maintaining simple manual operation, as the plastic insulation protects the user's hands during handling.
Solution Approach 2:
The plastic valve cores act as flexible thermal barriers surrounding the internal water flow passages. These plastic components conform to the valve internal geometry while providing continuous thermal insulation, preventing heat from the hot water from reaching the external valve body and handle surfaces that users contact during operation.
4Duration of action of stationary object
If traditional metal valve cores are used, then durability is improved, but susceptibility to freezing and cracking increases
Solution Approach 1:
The patent uses plastic valve cores that are inherently more resistant to freezing damage than metal alternatives. Plastic materials have lower thermal conductivity and higher flexibility, allowing them to withstand freezing temperatures without cracking. If damage occurs, the plastic cores can be easily replaced as disposable components, maintaining system durability through simple replacement rather than complex repair of frozen metal valves.
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 provides effective anti-scalding and anti-freezing protection, reduces production costs, and enhances corrosion resistance, ensuring structural integrity and improved performance while maintaining low production costs.
Implementation Method 1
plastic core for thermal insulation
Implementation Method 2
plastic core for thermal insulation and corrosion resistance
Implementation Method 3
copper core, a plastic core... the copper core is partially exposed from the second sleeve and is connected to the handle
Data Source
AI summary
The present disclosure provides a double-handle faucet, comprising a water outlet assembly, a control unit and a pipeline assembly; wherein, the water outlet assembly comprises a water outlet pipe, a water outlet spout, a first mounting base, a connecting core body and a first sleeve, the first sleeve is sleeved outside the connecting core body, the first mounting base is sleeved outside the first sleeve and the connecting core body, and the water outlet pipe is provided at the first end of the connecting core body; the control unit comprises two handle assemblies, the handle assemblies comprise a handle, a second mounting base, a valve core and a second sleeve respectively, the second sleeve is sleeved outside a copper core and a plastic core, the second mounting base is sleeved outside the second sleeve, the copper core and the plastic core, the plastic core is provided with a fluid inlet port and a fluid outlet port, a connection/disconnection between the fluid inlet port and the fluid outlet port can be controlled by operation of the handle; the pipeline assembly comprises a hot water inlet pipe, a cold water inlet pipe and a quick connecting pipe. The double-handle faucet of the present disclosure has good anti-scalding and anti-freeze-cracking effect, and has low production cost and high corrosion resistance.