Hose Connecting Device Retainer Segmentation for High-Pressure Sealing
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Solution Overview
Problem
Existing hose connecting methods, such as crimping sleeves, restrict assembly options and may not ensure long-term fluid-tight connections, affecting safety and reliability in hydraulic, air-conditioning, and automobile systems.
Innovation Solution
A hose connecting device with a hose receiving section and radial projection, secured by a retainer with parallel retaining limbs and a tension means, which provides a form-closure and frictional contact to prevent slippage, and can be assembled without cutting, using a combination of crimping and rolling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crimping sleeve is used to secure the hose, then the hose can be connected to the nipple, but the assembly options are restricted and the inward-facing edge must be formed during a reforming operation
Solution Approach 1:
The retainer is divided into two separate components: a retainer body that is attached to the hose connecting device element, and a tension means that is applied separately. This segmentation allows the retainer body to be pre-installed on the nipple without requiring complex reforming operations, while the tension means can be applied independently to secure the hose, simplifying the overall assembly process.
Solution Approach 2:
The retainer body is attached to the hose connecting device element in advance, before the hose is installed. This preliminary action eliminates the need to perform reforming operations after the sleeve is slipped over the hose, allowing for simpler assembly where the tension means is only needed to secure the hose in place.
2Ease of operation
If the crimping sleeve is slipped over the hose and nipple, then the connection can be made, but the inward-facing edge must be formed after slipping the sleeve
Solution Approach 1:
By separating the retainer into a retainer body and tension means, the edge formation requirement is applied only to the retainer body which is manufactured separately with precise edges, while the tension means can be a simpler component applied afterward to provide the securing function without requiring precise edge formation.
3Shape
If a retainer with bending operations is used, then the retaining limbs can be formed, but additional manufacturing steps are required
Solution Approach 1:
The retainer is segmented into a retainer body that receives the bending operations to form retaining limbs, and a separate tension means. This allows the complex bending operations to be concentrated in one component that can be manufactured separately, while the tension means can be produced with simpler processes and applied afterward.
Solution Approach 2:
The retainer body combines multiple functions: it provides the structural support, receives the bending operations to form retaining limbs, and serves as the anchor point for the tension means. By merging these functions into one component, the overall manufacturing process becomes more efficient despite the bending operations required.
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 enables easy, secure, and durable connections that maintain a fluid-tight seal under high pressures, ensuring assembly reliability and simplicity while preventing weak points that could lead to failure.
Implementation Method 1
the form closure and the frictional contact existing between the hose connecting device element and the inside of the inner hose are reinforced
Implementation Method 2
tension means that extend around the retaining limbs and the outside of the hose, the retaining limbs a clamped against the outside of the hose
Implementation Method 3
the form closure and the frictional contact existing between the hose connecting device element and the inside of the inner hose are reinforced
Data Source
AI summary
A hose connecting device that is suitable for high-pressure applications includes a retainer for connecting a hose end to a hose connecting device element. The retainer may be secured or anchored to a flange of the hose connecting device element. In an embodiment, the retainer includes at least two retaining limbs that are secured on the outside of the hose by a tension device, such as by tightening straps. The retaining limbs may be provided between the outside of the hose and the tension device, and may be clamped therein. In an embodiment, the retaining limbs include recesses with flanges or stepped edges to support the limbs. In an embodiment, tightening straps may dig into the outside of the hose and rest against the hose.