Composite Rod Sealing Unit with Drainage Recess
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Solution Overview
Problem
Existing sealing devices for rods have high system tolerance due to individual assembly of sealing and guide components, leading to time-consuming installation and potential sealing issues.
Innovation Solution
A composite sealing unit is created by integrating sealing elements with the guide body, allowing for simplified and time-saving installation, with a drainage system to divert any leakage and a circumferential recess for easy alignment during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sealing elements and guide body are assembled individually, then each component can be manufactured separately, but installation becomes time-consuming and system tolerance increases
Solution Approach 1:
The sealing elements are integrated directly into the guide body to form a composite sealing unit, eliminating the need for separate assembly during installation. This merging of components resolves the contradiction by maintaining manufacturing simplicity while dramatically improving installation speed and reducing system tolerance accumulation.
2Productivity
If sealing elements are integrated into guide body, then installation becomes simple and fast, but manufacturing complexity increases
Solution Approach 1:
The composite sealing unit is designed as a modular component that can be manufactured as an integrated unit but functions as a complete sealing system. This segmentation approach allows the complex integrated structure to be produced as a single replaceable module, reducing the perceived manufacturing complexity while maintaining installation simplicity.
3Reliability
If drainage opening requires precise alignment, then drainage function is effective, but installation becomes complex and time-consuming
Solution Approach 1:
The drainage opening is designed with a circumferential recess that allows the opening to function effectively at any radial orientation. This universal design resolves the contradiction by ensuring reliable drainage function regardless of installation angle, eliminating the need for precise alignment while maintaining drainage effectiveness.
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 design reduces system tolerance, facilitates easy installation, and ensures reliable sealing and drainage management, making it suitable for sealing rods in tight spaces.
Implementation Method 1
They are then in contact with the rod to be sealed under radial prestress, as a result of which a perfect seal can be achieved.
Implementation Method 2
Any drainage that occurs is diverted outwards via this opening to the recess, via which the drainage can be diverted or discharged.
Data Source
Figure 1~4
Figure 2~3
AI summary
The sealing device has two sealing elements (4,5) to seal against different mediums, and a guide element (1) for the bar. The sealing elements and the guide element forms a composite portion in the form of a sealing unit. The sealing elements are arranged on each end of the guide element. The sealing elements in the guide element are provided with the drainage outlets (11,12). The guide element is passed through the drainage outlet (11) to the outside, and extended over a portion of the drainage outlet (12).