Angle Valve Core Structure With Elastic Sealing Block
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Solution Overview
Problem
Existing angle valve structures with spherical valve cores suffer from wear and inadequate sealing, leading to water leakage over time due to insufficient sealing between the valve core and the valve body.
Innovation Solution
An angle valve structure featuring a rotatable valve core with an elastic arm and a sealing block, where the extrusion portion of the arm contacts the inner wall of the accommodation cavity to push the sealing block against the water outlet channel for sealing, and a snap-fit connection with a water inlet joint for secure assembly, utilizing wear-resistant materials to prevent long-term wear and leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a spherical valve core is used, then the valve can be manufactured simply and operated easily, but the sealing effect deteriorates over time due to wear between the valve core and valve body
Solution Approach 1:
The valve core is divided into a main body part and a separate sealing block, allowing the sealing function to be independent from the rotating function. The sealing block can be replaced or maintained separately, solving the wear-induced sealing failure problem while keeping the overall structure simple.
Solution Approach 2:
An elastic arm with a contact portion acts as an intermediary between the valve core main body and the sealing block. This elastic arm transmits the closing force to push the sealing block against the water outlet channel, ensuring reliable sealing while reducing direct wear between the valve core and valve body.
2Device complexity
If a spherical valve core with through hole is used, then the valve structure is simple, but water leakage occurs due to insufficient sealing after long-term use
Solution Approach 1:
The sealing function is extracted from the spherical valve core and implemented as a separate sealing block. This sealing block is pushed by the elastic arm to contact the water outlet channel, creating a dedicated sealing interface that prevents water leakage without complicating the overall valve structure.
Solution Approach 2:
The sealing block provides localized high-quality sealing at the water outlet channel interface, while the rest of the valve core maintains its simple spherical structure for easy operation. This localized enhancement addresses the leakage problem without requiring complex modifications throughout the entire valve.
3Duration of action of stationary object
If wear-resistant materials are used for the extrusion portion, then the sealing durability is improved, but the manufacturing cost increases
Solution Approach 1:
Wear-resistant material is applied locally only to the extrusion portion of the elastic arm that contacts the accommodation cavity wall, rather than the entire valve core. This localized treatment enhances sealing durability at the critical wear point while minimizing the increase in manufacturing cost.
Solution Approach 2:
The elastic arm is constructed with composite material properties - the extrusion portion uses wear-resistant material to withstand friction against the cavity wall, while other portions maintain elasticity for effective sealing force transmission. This composite approach balances durability and manufacturability.
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 enhances sealing efficacy by using water pressure and the elastic arm's contact to maintain a tight seal, preventing leakage and ensuring durability through snap-fit connections, while simplifying manufacturing and reducing costs.
Implementation Method 1
the valve core includes a main body part and an elastic arm whose one end is connected with the main body part
Implementation Method 2
uses the pressure of water and the force of the contact portion to strengthen the sealing effect
Data Source
AI summary
An angle valve structure includes an angle valve body. The angle valve body is provided with a water inlet channel, a water outlet channel and an accommodation cavity. The accommodation cavity is rotationally provided with a valve core. One end of the valve core exposed outside the accommodation cavity is fixedly connected with a knob. The valve core is provided with a sealing block for sealing the water outlet channel when sealing. The valve core includes a main body part and an elastic arm whose one end is connected with the main body part. One side of the main body part is provided with a mounting slot for placing the sealing block, one side of the elastic arm is provided with an extrusion portion, and the other side of the elastic arm is provided with a contact portion against the sealing block after assembly.