Compact High-Pressure Hose Fitting with Flange Locking
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Solution Overview
Problem
The existing connecting and connecting devices for high-pressure hoses have an axially protruding structure and lack a compact design, making them less efficient in terms of space utilization and secure sealing, especially when under pressure.
Innovation Solution
Incorporating an outer sleeve and a flange ring with a groove/tongue connection, along with additional fixing mechanisms such as spring clips or hinges, to create a more compact axial design and ensure secure sealing and locking of the hose fittings, even under pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the outer compression sleeve is spaced apart from the half-shells, then the nipple can be connected to the hose body, but the device has an axially protruding structure and lacks compact design
Solution Approach 1:
The patent combines the outer compression sleeve with the half-shells by making the half-shells form part of the outer compression sleeve structure. This merging eliminates the spaced-apart configuration and creates a compact axial design where the half-shells and outer sleeve work as an integrated unit for both connection and compression functions.
Solution Approach 2:
The half-shells are designed to serve multiple functions: they act as connection elements for joining hose fittings, form part of the outer compression sleeve structure, and provide the locking mechanism through their interaction with the flange ring. This multi-functionality reduces the need for separate components and achieves compact axial design.
2Reliability
If the flange ring is spaced from the half-shells, then assembly is simple, but the device lacks secure locking under pressure
Solution Approach 1:
The patent implements a dynamic locking mechanism where the flange ring can axially displace within the receiving recess of the half-shells. Under pressure, the flange ring automatically moves to engage with the end face of the half-shells, transitioning from a loose to a locked state. This dynamic behavior provides secure locking while maintaining simple assembly.
Solution Approach 2:
The axial position of the flange ring changes based on pressure conditions. In the release position, the flange ring is at one axial location allowing easy assembly. Under pressure, the flange ring displaces axially to engage with the half-shells end face, changing its position parameter to achieve secure locking.
3Reliability
If additional fixing means are added to hold half-shells together, then the locked state under pressure is secured, but the device complexity increases
Solution Approach 1:
The patent employs self-service mechanisms where spring clips automatically engage with the half-shells to hold them together in their closed position. The spring clips utilize elastic deformation to provide continuous holding force, and the hinge mechanism with prestressing automatically maintains the locked state without requiring additional active control or complex fixing systems.
Solution Approach 2:
Spring clips and hinges act as intermediary elements between the half-shells, providing the holding function. These intermediaries simplify the overall structure by using elastic and mechanical principles rather than requiring direct complex fixing mechanisms between all components.
Data Source
AI summary
A joining and connecting device for high-pressure lines for joining a hose line to a further hose line or to a high-pressure working implement, wherein the end of the hose line is provided with a hose fitting which comprises a nipple which can be pushed into the inner core of a hose body, and a sleeve which can be placed onto the outer side of the hose body, can be connected to the nipple and can be pressed onto the hose body, is characterized in that the hose fitting (10) which is connected to the hose body has a radially protruding flange ring (20) and that end of the nipple (11) which protrudes out of the hose body has a seal (18), placed on the outer circumference thereof, and can be inserted together with the seal (18) into a receiving bush (19), and in that the receiving bush (19) and the radially protruding flange ring (20) are surrounded by two half shells (22), which outwardly surround the receiving bush (19) and flange ring (20) including an adjoining section of the outer sleeve (12), as the joining and connecting device, wherein a recess (23) in the half shells (22), said recess serving to receive the flange ring (20), is dimensioned in such a manner that the hose end with the hose fitting (10) attached thereto can move axially between a release position and a locking position for the half shells (22), said locking position being formed by form-fitting engagement of the flange ring (20) with a receiving formation (25) formed on the end sides of the half shells (22).