Stop Valve Linear Seal Structure for Compact Valve Bodies
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Solution Overview
Problem
Existing stop valves in air conditioning systems have an increased valve body size due to the valve body being sleeved on the connecting block, leading to higher material requirements and costs.
Innovation Solution
The stop valve design includes a valve body with a first and second opening, a movable valve core, and a connecting block that is fixedly connected to the valve body, allowing the valve core to move and form a linear seal with a seal portion, reducing the valve body size and material consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the valve body is sleeved on the connecting block to enable the valve core to move, then the valve core can be threaded with the connecting block, but the valve body size increases and material consumption increases
Solution Approach 1:
The invention extracts the sealing function from the valve body structure by introducing a separate seal ring. The seal ring is installed in a groove on the connecting block and provides the necessary sealing between the valve core and connecting block, allowing the valve body to be smaller while maintaining sealing performance.
Solution Approach 2:
The seal ring acts as an intermediary element between the valve core and the connecting block. It enables the threaded connection and movement of the valve core while preventing medium leakage, thus allowing the valve body to be reduced in size without compromising the sealing function.
2Ease of operation
If the valve body is sleeved on the connecting block, then the valve core can be threaded with the connecting block, but the manufacturing cost increases
Solution Approach 1:
The sealing function is extracted from the valve body and assigned to a separate seal ring. This allows the valve body to be manufactured with reduced material and simpler processing requirements, while the seal ring can be produced independently and installed in a groove on the connecting block.
Solution Approach 2:
The valve assembly is segmented into distinct components: the valve body, connecting block, seal ring, and valve core. The seal ring is a separate, standardized component that can be manufactured independently and installed in a groove, simplifying the manufacturing of the valve body itself.
3Quantity of substance
If the valve body size is reduced, then material consumption decreases, but sealing performance may be compromised
Solution Approach 1:
The seal ring serves as an intermediary sealing element between the valve core and connecting block. It is installed in a groove on the connecting block and provides reliable sealing without requiring a large valve body, thus maintaining sealing performance while allowing for a compact design.
Solution Approach 2:
The sealing function is extracted from the valve body structure and implemented through a dedicated seal ring. This specialized component can be optimized for sealing performance independently of the valve body size, ensuring reliable sealing even in compact configurations.
Data Source
AI summary
A stop valve is provided. A stop valve includes a valve body, a valve core and a connecting block. The valve body is provided with a first opening and a second opening. The valve core is movable in the valve body to communicate the first opening with the second opening and cut off a communication therebetween. One end of the connecting block is located outside the valve body, the other end thereof is fixedly connected to an end of the valve body. A part of the valve core extends into the connecting block and is in threaded fit with the connecting block. The connecting block extends towards the valve body to define a seal portion along an axis of the valve core. When the stop valve is in a fully opened state, the valve core is capable of abutting against the seal portion and forming a linear seal therewith.