Switching Valve Core with Independent Press-and-Rotate Water Control
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Solution Overview
Problem
Traditional hand-held shower nozzle valve cores are complex and inconvenient, as they require additional components for water shutoff and cannot maintain water discharge state when switching between modes, especially at low water pressure.
Innovation Solution
A switching valve core with a pressing water shutoff member and a rotatable switching member, where the pressing water shutoff member moves along the axial direction to seal or unseal a pressure relief hole, and the rotatable switching member adjusts water flow without interfering with the shutoff function, using a compensating spring and lifting portions to ensure stability and operation at low pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional valve core is used for waterway switching, then the water discharge mode can be changed, but additional components are required for water shutoff function, making the structure more complex
Solution Approach 1:
The patent combines the water shutoff function and water discharge mode switching function into a single valve core structure. The pressing member controls water shutoff by pressing against the sealing member, while the rotating member switches between different water discharge modes. This integration eliminates the need for separate components for each function, simplifying the overall structure while maintaining both capabilities.
2Ease of operation
If a traditional valve core is used for water shutoff, then water can be shut off, but the water discharge state cannot be maintained when switching between water shutoff and discharge
Solution Approach 1:
The valve core is segmented into functionally independent components: a pressing member for water shutoff control and a rotating member for discharge mode switching. This segmentation allows each component to perform its specific function without interfering with the other, enabling the water discharge state to be maintained when switching between modes while still providing effective water shutoff capability.
3Adaptability or versatility
If a conventional switching valve core is used, then waterway switching is achieved, but the valve core cannot be closed when water shutoff or cannot be opened at low water pressure
Solution Approach 1:
The patent introduces a sealing member as an intermediary between the pressing member and the valve body. This sealing member ensures reliable water shutoff when the pressing member presses against it, and also facilitates smooth opening at low water pressure by allowing controlled movement. The intermediary sealing member bridges the gap between the switching mechanism and the water flow control, improving overall reliability.
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
Enables seamless switching between water shutoff and discharge states without affecting the discharge mode, maintaining the discharge state unchanged and ensuring the valve core can be opened at low pressure, thus simplifying operation and enhancing user convenience.
Implementation Method 1
the tail end of the pressing water shutoff member abutting against or being separated from a pressure relief hole of the water shutoff member
Implementation Method 2
when the end of the pressing water shutoff member is sealed against the pressure relief hole, the water in the water shutoff cavity presses down the sealing sheet along the axial direction to seal the water sealing portion
Data Source
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AI summary
A switching valve core for water shutoff, comprising a valve core body (1). The valve core body is provided with a water inlet (11) and a water outlet (12); the valve core body (1) is provided with an accommodating cavity along the axial direction of the valve core body; the interior of the accommodating cavity is provided with an operating member (2), a water shutoff member (3), and a water output switching member (4); the operating member (2) comprises a pressing water shutoff member (21) and a rotatable switching member (22) that are provided independently from each other; the pressing water shutoff member (21) moves along the axial direction of the accommodating cavity, and a tail end of the pressing water shutoff member abuts against or is separated from a pressure relief hole (31) of the water shutoff member (3); the rotatable switching member (22) and the water output switching member (4) are provided in a linkage manner. A user achieves switching between an on state and an off state by means of pressing, and achieves the adjusting of a water output path or a water output quantity by means of rotation. Two functions are not affected by each other, and therefore, a user does not need to adjust an on state again when outputting water each time, and a switching valve core is easy to use.