Joint Stabilizer Sealing Lip for High-Pressure Movement Control
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Solution Overview
Problem
Existing devices for stabilizing body joints and sports devices face challenges in maintaining effective movement restriction and preventing damage from high pressure loads, particularly due to issues with material selection and sealing effectiveness.
Innovation Solution
The device incorporates a receptacle filled with a filling medium and an active body with a sealing lip that adjusts to changes in the receptacle's diameter, ensuring effective sealing and pressure retention even under high pressure loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an excessively hard or brittle material is selected for the receptacle, then the receptacle can withstand high pressure loads, but the wearing comfort on body parts is impaired
Solution Approach 1:
The receptacle is designed with flexible material properties that allow it to deform elastically under pressure rather than remaining rigid. This flexibility enables the receptacle to withstand pressure loads while adapting to body contours, thereby maintaining wearing comfort. The flexible shell can expand and contract with pressure changes without compromising structural integrity or user comfort.
2Object-affected harmful factors
If an excessively elastic material is selected for the receptacle, then the wearing comfort is improved, but the receptacle bends outward at high pressures and the filling medium can escape
Solution Approach 1:
The sealing system employs dynamic sealing elements that can adapt their position and shape in response to pressure changes. The sealing lip is designed to maintain contact with the receptacle wall even when the receptacle deforms elastically under pressure. This dynamic sealing mechanism ensures that the filling medium remains contained while allowing the receptacle to flex for comfort.
Solution Approach 2:
The receptacle uses flexible material that can deform under pressure while maintaining its sealing integrity through the coordinated design of the sealing lip. The flexibility allows the receptacle to conform to body movements and pressure changes without compromising the seal, as long as the pressure remains within the designed operational range.
3Device complexity
If O-rings are used for sealing, then the sealing is simple, but the O-rings cannot adapt to changed diameters of the receptacle under pressure and may be displaced
Solution Approach 1:
The sealing lip is designed as a dynamic sealing element that can change its shape and position in response to pressure-induced diameter changes of the receptacle. Unlike fixed O-rings, the sealing lip can adapt to the deformed geometry of the receptacle, maintaining effective sealing contact throughout the pressure cycle.
Solution Approach 2:
The sealing system accounts for parameter changes in the receptacle geometry under pressure by using a sealing lip that can adjust its sealing characteristics. The sealing lip's geometry and material properties are designed to compensate for the diameter changes, ensuring consistent sealing performance across the operating pressure range.
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 configuration allows the device to maintain effective movement restriction and prevent damage by ensuring the filling medium does not escape, even when the receptacle bulges under high pressure, thus enhancing the device's operational reliability and safety.
Implementation Method 1
the active body arrangement has a sealing lip for sealing a gap between an inner side of the receptacle and a lateral region of an outer side of the active body arrangement
Implementation Method 2
the active body comprising at least one passage opening, through which filling medium can flow
Implementation Method 3
two bodies move relative to one another, a filling medium being situated between the bodies
Implementation Method 4
The flowing speed of the filling medium depends decisively on the cross-sectional area perpendicularly with respect to a relative displacement direction of the receptacle and the pull-out body. This cross-sectional area which is available for the flow for the filling medium is also called a hydraulic diameter
Data Source
AI summary
An apparatus for stabilizing movements of two parts of a body region and/or of a sports device which are movable relative to one another, comprising a receptacle, which can be fixed to a first part of the region and/or device. An active body arrangement with an active body is received movably in the receptacle and can interact with the filling medium. A force transmission body can be fixed to a second part of the same region and/or device for transmitting an external force to the active body. The active body comprises at least one through-opening through which a filling medium in the receptacle can flow. The active body arrangement has a sealing lip for sealing a gap between an inner side of the receptacle and a lateral region of an outer side of the active body arrangement, the sealing lip being arranged on an outer side of the active body.