Belt Sealing Ring Assembly for Reliable Tube Tightening
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Solution Overview
Problem
Existing tightening devices for sealingly connecting tubes are either complex to assemble and require multiple pieces or have unsatisfactory sealing due to random wedging of the sealing ring.
Innovation Solution
A tightening device with a belt featuring a sealing ring in an annular recess and adjustable tightening lugs, where the sealing ring is wedged between recess edges and maintained by lateral tabs, ensuring effective sealing without external exposure of the ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing ring is disposed inside a belt with tightening lugs, then sealing function is provided, but the sealing ring wedging is random and sealing contact between belt ends is unsatisfactory
Solution Approach 1:
The sealing ring is pre-positioned in a recess of the belt before tightening, with its edges abutting against stepped surfaces. This preliminary positioning ensures correct wedging and sealing contact between belt ends is achieved automatically during tightening, eliminating random placement and improving sealing reliability without complicating assembly
Solution Approach 2:
A recess with stepped surfaces is introduced as an intermediary structure between the sealing ring and the belt ends. The stepped surfaces guide and constrain the sealing ring edges, ensuring proper wedging and sealing contact. This intermediary structure simplifies the assembly process while guaranteeing reliable sealing
2Reliability
If multiple pieces (outer belt, inner belt, sealing ring) are used for tightening and sealing, then sealing function is achieved, but the device complexity increases and perfect positioning is required
Solution Approach 1:
The invention merges the functions of the outer belt, inner belt, and sealing ring into a single integrated belt structure. The sealing ring is disposed inside the recess of the same belt that provides tightening function, eliminating the need for separate inner and outer belts. This reduces component count and assembly complexity while maintaining reliable sealing through the recess structure that ensures proper positioning
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 device provides a simple, reliable, and effective sealing solution by ensuring the sealing ring is securely wedged and protected, maintaining a tight seal between tube ends with easy assembly and operation.
Implementation Method 1
the recess having edges that form wedging steps for the edges of the sealing ring
Data Source
AI summary
A belt has a sealing ring disposed in an annular recess of the belt and two tightening lugs born by the ends of the belt. The edges of the recess form wedging steps for the edges of the sealing ring which substantially occupy the entire width of the recess. The ends of the belt exhibit a sealing arrangement which includes lateral tabs, that are formed at the second end and which extend widthwise on the belt, from one edge of the belt to the recess such that each lateral tab includes a part of one of the wedging steps.