Elastic Sanitary Insert Unit for Variable-Diameter Shower Fittings
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Solution Overview
Problem
Existing sanitary insert units with flow rate regulators face challenges in being permanently and easily detachably attached to shower handles with varying diameters, as they require precise design and dimensional accuracy, and are not easily adaptable for use with different shower fittings.
Innovation Solution
A sanitary insert unit featuring a sealing ring with a sleeve-shaped extension made of elastic material that can deform to fit various line sections, providing a frictional or positive lock, allowing for easy attachment and detachment, and incorporating a flow rate regulator or backflow preventer that can adapt to different cross-sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flow rate regulator is fixed to a shower handle by press fit, then it can be permanently attached, but it requires precise design and dimensional accuracy of the shower handle
Solution Approach 1:
The sealing ring uses elastic material properties to adapt to varying shower handle diameters. The elasticity parameter of the sealing ring allows it to deform and create a secure press fit connection without requiring precise dimensional matching between the regulator and handle, resolving the contradiction between reliable attachment and manufacturing precision requirements
Solution Approach 2:
The sealing ring is designed as a flexible elastic component that can deform to accommodate different shower handle sizes. This flexible sealing ring acts as an intermediary element between the regulator and the handle, providing a reliable connection while compensating for dimensional variations in the handle
2Adaptability or versatility
If a sealing ring with extension is used to attach to line sections, then it can adapt to various diameters, but it requires the extension to be securely held in the line interior
Solution Approach 1:
The extension is made of elastic material that can deform to fit different line interior diameters. When inserted, the elastic extension expands or contracts to match the line interior size, creating a secure friction-based holding effect that ensures both adaptability and reliable retention
Solution Approach 2:
The elastic extension utilizes pressure forces from the flowing medium to enhance its holding effect. The pressure differential and flow dynamics create additional friction and radial forces that help secure the extension in the line interior, especially under operating conditions
3Reliability
If the head of the extension is made of elastic material to deform and rest against the inner peripheral wall, then it provides frictional holding, but it must maintain elasticity to adapt to different line interiors
Solution Approach 1:
The head of the extension is made of elastic material whose physical parameters (elastic modulus, hardness) are optimized to provide sufficient frictional holding force while maintaining the ability to deform and adapt to different line interior diameters. The material properties are selected to balance between rigidity for holding and flexibility for adaptation
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 enables secure and adaptable attachment of the sanitary insert unit to various shower handles, ensuring a firm hold during storage and transport, while allowing for easy connection and disconnection, and effectively regulating water flow or preventing backflow regardless of the handle's design or dimensions.
Implementation Method 1
a head (3), which projects over the circumference and is made of elastic material, on its free end area of the extension (2), wherein the head (3) can be deformed at least in regions into the clear line interior (4) of a line section (5) assigned to the extension (2) in such a way that the head (3) of the extension (2) rests against the inner peripheral wall bordering the clear line interior (4) of the line section (5)
Data Source
Figure 1~2
Figure 3~4
Figure 5~10
AI summary
The present invention relates to a sanitary insertion unit which has a sealing ring (1) with a sleeve-shaped extension (2), the free end region of which extension (2) has a head (3) which protrudes circumferentially and, when the extension (2) is inserted into an associated line section, can be deformed at least in regions in such a manner that the head (3) of the extension (2) is placed onto the inner circumferential wall of the line section (5). The invention also relates to a sanitary insertion unit which has a flow regulator or is designed as a flow regulator, the outer circumference of the housing of which flow regulator bears a clamping edge region for, in particular, sealing and clamping the flow regulator between two interconnected line sections, wherein the flow regulator bears a sleeve-shaped extension, the circumferentially protruding head of which, the head being produced from elastic material, can be deformed, when the extension is inserted into a line section, in such a manner that the head is placed onto the inner circumferential wall of the line section. Finally, the present invention is also concerned with a shower fitting having a line section which is configured in the form of a shower connection and in the line interior of which one of the above-described insertion units can be inserted.