Fluid Circuit Element Anchoring Teeth Stress Distribution
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Solution Overview
Problem
Existing fluid transport circuit connection methods face challenges in anchoring inserts within circuit elements, particularly with amorphous plastic materials that risk yielding under stress, while traditional anchoring methods are either costly or inefficiently distribute stress.
Innovation Solution
A fluid transport circuit element design featuring a channel end portion with distinct axial portions, where anchoring teeth exert force on one portion close to the central axis and not on another portion further away, reducing stress on the material and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid teeth are used for anchoring the insert, then effective anchoring is achieved, but high stresses are exerted on the body material causing potential failure
Solution Approach 1:
The channel end portion is designed with differentiated local properties: a first axial portion with higher mechanical resistance close to the central axis that receives the anchoring teeth, and a second axial portion further from the axis with different characteristics. This local differentiation allows the anchoring teeth to engage only with the more resistant first portion, concentrating the anchoring function where needed while protecting the overall structure from excessive stress.
Solution Approach 2:
The channel end portion is segmented into distinct axial portions at different radial distances from the central axis. The first axial portion is specifically designed to interact with the anchoring teeth, while the second axial portion serves a different function. This segmentation allows stress to be localized to the first portion, preventing propagation throughout the entire body structure.
2Ease of manufacture
If amorphous plastic material is used for the body, then ease of manufacture is improved, but the material fails under anchoring stresses
Solution Approach 1:
Rather than requiring the entire body to be made of high-strength material, the invention creates a local quality difference within the channel end portion. The first axial portion is designed to have superior mechanical properties specifically at the location where anchoring stresses are applied, while the rest of the body can remain made of easier-to-manufacture amorphous plastic material.
3Object-affected harmful factors
If a deformable washer with teeth is used for anchoring, then stress on the body is reduced, but an additional component is required increasing cost
Solution Approach 1:
The invention merges the anchoring function directly into the insert structure itself by providing anchoring teeth on the external surface of the insert. This eliminates the need for a separate deformable washer component, as the insert combines both the connection tube reception function and the anchoring function in a single integrated piece.
Solution Approach 2:
The insert is designed to be self-anchoring through its external teeth that engage with the first axial portion of the channel end. The insert serves its own anchoring needs without requiring additional components, making the system simpler and more economical while still protecting the body material from excessive stress.
Data Source
Figure 1~3
Figure 2~8
AI summary
The invention relates to a fluid transport circuit element, comprising a body (1) provided with a channel (2) having an end portion (3) and a tubular connection insert (5) which is received in said end portion (3) and which is provided, on the inside, with means (6, 9) for sealingly holding a tube and, on the outside, with anchoring teeth (10), characterised in that the end portion of the channel has a central axis (X) and is defined by a wall including at least one first axial portion (12) relatively close to the central axis and a second axial portion (11) relatively separated from the central axis so that the anchoring teeth (10) exert an anchoring force on the first portion (12) and do not exert an anchoring force on the second axial portion (11).