Thermostatic valve attachment
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Solution Overview
Problem
Existing thermostatic valve attachments require additional parts and space for tactile feedback mechanisms, increasing costs and complexity.
Innovation Solution
Integrating tactile feedback means, such as a spring, latching element, and metal ball, between the handle and thermostatic element, which provides stepwise rotational resistance without needing extra space, using existing valve components to reduce costs and enhance user feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tactile feedback means are arranged in a ring attached to the base surrounding the handle, then tactile feedback is provided, but additional parts and assembly complexity are required
Solution Approach 1:
The tactile feedback means are merged with existing valve components. The latch geometry is integrated into the thermostatic element, and the latching element is integrated into the handle, eliminating the need for separate feedback mechanisms and reducing overall device complexity.
Solution Approach 2:
Existing components serve multiple functions: the thermostatic element not only controls valve operation but also provides latch geometry for tactile feedback, while the handle not only operates the valve but also carries the latching element and spring mechanism for feedback generation.
2Ease of operation
If additional tactile feedback parts are added to the valve attachment, then user feedback is enhanced, but manufacturing costs increase
Solution Approach 1:
The tactile feedback functionality is combined with existing valve components that must be manufactured anyway. The latch geometry is formed on the thermostatic element during its manufacturing process, and the latching element is integrated into the handle assembly, eliminating the need for separate feedback mechanism production.
Solution Approach 2:
The existing valve components serve themselves by providing tactile feedback functionality without requiring additional dedicated parts. The thermostatic element's structure itself provides the latch geometry, and the handle's structure provides the latching element, making the system self-sufficient for feedback generation.
3Volume of moving object
If tactile feedback means are integrated into existing components, then no additional space is required, but component design complexity increases
Solution Approach 1:
The existing components are modified locally to provide tactile feedback functionality. The latch geometry is added to specific regions of the thermostatic element, and the latching element is added to specific regions of the handle, rather than fundamentally redesigning the entire components.
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
This solution allows for cost-effective implementation of tactile feedback, providing both tactile and audible cues during handle rotation, while maintaining mechanical stability and reducing wear on the thermostatic element, without increasing the valve's diameter or parts count.
Implementation Method 1
The spring presses the latching element into the latch geometry. The effect is that the person rotating the handle feels a kind of a stepwise rotational movement of the handle.
Implementation Method 2
The latching element and the latch geometry together form a combination which produce alternatingly a higher resistance and a lower resistance against the rotational movement of the handle.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A thermostatic valve attachment (1) is described comprising a base (2), a handle (3) connected to the base 2, a thermostatic element (4) arranged at least partly in the handle (3), and tactile feedback means (17), wherein the handle (3) is rotatable around an axis of rotation. A valve attachment should achieve a tactile feedback with low cost. To this end, the handle (3) is arranged rotatably with respect to the thermostatic element (4) and the tactile feedback means (17) are arranged between the handle (3) and the thermostatic element (4).