Pull-Out Faucet Inner Liner Structure for Noise and Flush-Out Control
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Solution Overview
Problem
Existing pulling faucets without weights generate noise due to metal-on-metal friction and are prone to flushing out under high water pressure, compromising user experience and functionality.
Innovation Solution
A noise reduction structure is implemented using a support tube, pulling tube, elastic restore member, and inner liner with shrinkage cracks, along with a water outflow buffer connector to change water flow direction, reducing friction and preventing flushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the spring is made to contact the support tube directly for structural simplicity, then the device complexity is reduced, but noise is generated due to metal-on-metal friction
Solution Approach 1:
An inner liner is introduced as an intermediary component between the spring and the support tube. The inner liner is a non-metallic material that prevents direct metal-on-metal contact, thereby eliminating the sharp rubbing noise while maintaining the structural simplicity of the design.
2Reliability
If the elasticity of the spring is increased to improve the pulling restore function, then the pulling reliability is improved, but the water outflow assembly is easily driven away under high water pressure
Solution Approach 1:
The inner liner serves as a preliminary protective barrier that prevents the spring from directly contacting and being impacted by the water outflow assembly. This preliminary protection prevents the high water pressure from being transmitted directly to the spring, avoiding the spring's elastic force from becoming too large and causing the assembly to be driven away.
3Manufacturing precision
If the inner liner is made rigid to maintain structural stability, then the manufacturing precision is improved, but the inner liner cannot conform to the bent shape of the support tube
Solution Approach 1:
The inner liner is designed with specific material parameters that allow it to be flexible and conformable during installation, enabling it to bend and conform to the curved shape of the support tube. Once installed, the inner liner maintains sufficient structural stability to perform its noise reduction and protective functions.
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 solution effectively reduces noise and prevents the water outflow assembly from being flushed out, enhancing user experience and functionality under high pressure conditions.
Implementation Method 1
the inner liner is disposed between an inner wall of the support tube and an outer wall of the elastic restore member
Implementation Method 2
the pulling tube will squeeze a spring to accumulate an elastic restore force when pulling, so that the pulling tube is automatically restored under the elastic restore force after releasing
Data Source
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AI summary
The present disclosure discloses a noise reduction structure of a pulling faucet without a weight, it comprises: a support tube, a pulling tube, an elastic restore member and an inner liner; the support tube is connected to a faucet body through an intermediate connector; the elastic restore member is sleeved outside of the pulling tube, and one end is a fixed end and the other end is connected to the pulling tube to form a linkage end; the inner liner is disposed between an inner wall of the support tube and an outer wall of the elastic restore member; and the inner liner comprises one or more shrinkage cracks along the inner wall of the support tube in a direction of a bending radius of the support tube from an outer side to an inner side, so that a portion of the inner liner on both sides of the one or more shrinkage cracks is brought together in a direction along which the one or more shrinkage cracks close when the inner liner passes through and is disposed in the support tube. The present disclosure further discloses an anti-flushing out structure of the pulling faucet without the weight and the pulling faucet without the weight.