Annular Sealing Elements with Positioning Means for Wall Ducts
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Solution Overview
Problem
Existing sealing devices for wall ducts face challenges in accommodating lines of varying diameters, leading to complex storage and handling requirements, potential damage during assembly, and difficulties in ensuring correct assembly and sealing performance.
Innovation Solution
A device with positioning means that provide specific options for axial positioning of sealing elements, featuring collars and projections for secure alignment and easy assembly, along with clamping rings for radial compression, ensuring correct and secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sealing devices with different inner diameters are kept in stock to accommodate lines of varying dimensions, then the adaptability to different line sizes is improved, but the device complexity and storage handling requirements worsen
Solution Approach 1:
The sealing device is divided into multiple detachable sealing elements with different inner diameters that can be separated and recombined. This allows a single device to accommodate multiple line sizes by selectively removing or adding sealing elements, eliminating the need to store multiple complete sealing devices of different sizes.
Solution Approach 2:
The sealing device transitions from a fixed configuration to a dynamic, reconfigurable structure. Sealing elements can be added or removed based on the required line diameter, allowing the device to adapt its inner diameter dynamically rather than being fixed at manufacturing.
2Adaptability or versatility
If sealing elements are made detachable to allow size adjustment, then the adaptability to different line sizes is improved, but the reliability of correct assembly worsens due to difficulty in ensuring proper joining
Solution Approach 1:
Positioning means such as asymmetric protrusions and corresponding recesses are provided on the sealing elements. These asymmetric features ensure that sealing elements can only be joined in the correct orientation and position, preventing incorrect assembly while maintaining the ability to detach and reconfigure the device.
3Adaptability or versatility
If sealing elements are mechanically separated on-site to adapt to pipe dimensions, then the adaptability to different line sizes is improved, but the loss of time and effort required for separation worsens
Solution Approach 1:
The sealing elements are pre-designed with integrated positioning means (protrusions and recesses) that facilitate easy identification and correct joining. This preliminary design feature eliminates the need for complex on-site measurement and marking operations, reducing the time and effort required for adaptation.
4Adaptability or versatility
If incorrect cutting or removal of sealing elements is done, then the adaptability to different line sizes is improved, but the reliability of the seal worsens since incorrect assembly cannot be corrected
Solution Approach 1:
The asymmetric positioning means (protrusions and recesses) serve as mechanical guides that physically prevent incorrect assembly. If a sealing element is removed and needs to be reinstalled, the positioning features ensure it can only be placed back in the correct position, guaranteeing proper sealing performance.
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 prevents incorrect assembly, simplifies the installation process, and enhances the sealing performance by ensuring correct alignment and secure locking of sealing elements, reducing the need for multiple sizes of sealing devices and improving handling efficiency.
Implementation Method 1
two or more annular, elastically deformable sealing elements (2, 4, 6, 8, 10, 12)
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The device (1) comprises two or multiple annular, elastic deformable sealing elements (2,4,6,8,10,12) having different internal diameter and detachably arranged coaxial inside one another. A positioning unit (14,16,18,20,22) is provided, which is adapted to one or multiple possible positions of the sealing elements relative to each other. The sealing elements are formed partially conical corresponding to a longitudinal axis.