Plastic Connecting Stub With Double-Walled Profile
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Solution Overview
Problem
Existing connecting pieces for hollow bodies, which are typically made from different materials, face challenges in reusability and maintaining a permanent seal under pressure, as they often require multiple materials to achieve sufficient load-bearing capacity and prevent material creep.
Innovation Solution
A connecting piece designed entirely from plastic with a double-walled profile and axial webs, providing increased dimensional stability and load-bearing capacity, while also incorporating noise-damping resonator features, allowing for the use of a single material and preventing material creep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different materials are used for the connecting piece to achieve sufficient load-bearing capacity and prevent material creep, then the sealing reliability is improved, but the manufacturing complexity and material reusability are worsened
Solution Approach 1:
The patent applies composite materials by combining plastic with glass fibers or other reinforcing materials to create a connecting piece that achieves sufficient load-bearing capacity and creep resistance while maintaining a single-material construction approach. This allows the plastic component to meet mechanical requirements without requiring multiple different materials, thus improving sealing reliability while avoiding the complexities of multi-material manufacturing and disposal.
2Strength
If a metal ring is added to the plastic connecting piece to absorb pressing forces, then the load-bearing capacity is improved, but the manufacturing complexity and material reusability are worsened
Solution Approach 1:
The patent changes the parameters of the plastic material itself by incorporating glass fibers or other reinforcing materials, transforming it from a simple plastic to a reinforced composite plastic. This allows the plastic to absorb pressing forces and achieve sufficient load-bearing capacity without requiring additional metal rings, thus improving strength while maintaining structural simplicity and material reusability.
3Ease of manufacture
If the connecting piece is made entirely of plastic, then the manufacturing ease and material reusability are improved, but the load-bearing capacity and creep resistance are worsened
Solution Approach 1:
The patent uses composite materials by combining plastic with glass fibers or other reinforcing materials to create a reinforced plastic connecting piece. This allows the component to be manufactured as a single plastic part (maintaining manufacturing ease and material reusability) while the composite structure provides sufficient load-bearing capacity and creep resistance (improving strength).
4Stability of the object's composition
If a double-walled profile with axial webs is used in the connecting piece, then the dimensional stability and load-bearing capacity are improved, but the manufacturing complexity is worsened
Solution Approach 1:
The patent applies the double-walled profile with axial webs to distribute radial forces over a larger volume and provide greater dimensional stability. The double-walled structure with axial webs creating a lattice-like framework that resists deformation under radial loads. While this increases profile complexity, it can be manufactured as a single integrated plastic component, offsetting the complexity increase through manufacturing efficiency.
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 ensures a strong, single-material connecting piece with enhanced load-bearing capacity and noise-damping capabilities, maintaining a permanent seal under pressure without material creep, and allows for efficient production and reuse.
Implementation Method 1
the space between the two walls communicates with the interior of the hollow body or the connection body and, due to appropriate dimensioning, forms a resonator with which noises can be damped. If, for example, sound waves with a wavelength λ occur inside the hollow body and/or the connection body, the named space can be designed as a λ/4 resonator in order to reduce noise with the wavelength λ.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The present invention relates to a hollow body (1) with at least one connecting stub (1) for a hose-shaped or tubular connection body (7). The connecting stub (1) is configured completely as a plastic part and has a profile (3, 4, 5, 6, 6') with an increased dimensional stability for dissipating radial forces within a region which extends the connection body or is overlapped axially by the connection body.