Hose Coupling Clamping Sleeve with Penetrating Holding Elements
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Solution Overview
Problem
Existing hose couplings with clamping devices struggle to provide a secure connection for hoses with varying jacket thicknesses and properties, often leading to leakage or slippage under tensile stress, and require multiple devices for different thicknesses, which is impractical and costly.
Innovation Solution
A clamping sleeve with holding elements that penetrate the hose jacket, distributing tensile forces evenly and providing a secure connection regardless of jacket thickness, using a design with alternating incisions and radially arranged holding elements that can be compressed or expanded for flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a clamping sleeve with binding wire or hose ties is used to attach the hose end to the coupling element, then the attachment can be made with simple tools, but the tensile strength is insufficient and the assembly process becomes complex requiring binding machines
Solution Approach 1:
The patent replaces the mechanical binding system (wire, ties, cuffs) with a friction-based clamping system. The clamping sleeve with circumferential grooves creates friction contact with the hose end, eliminating the need for binding machines while providing sufficient tensile strength through friction escalation under load.
Solution Approach 2:
The clamping sleeve utilizes parameter changes through its flexible diameter capability. The sleeve can be compressed radially inward during assembly and then expands to create friction contact. The circumferential grooves allow the sleeve to deform elastically, changing its dimensional parameters to adapt to the hose end and create secure friction-based attachment.
2Strength
If the clamping sleeve has a rigid structure to provide strong clamping force, then the tensile strength is sufficient, but the assembly becomes difficult for hoses with varying jacket thicknesses
Solution Approach 1:
The clamping sleeve transitions from a static rigid structure to a dynamic flexible structure. The circumferential grooves enable the sleeve to deform radially, allowing it to adapt to different hose jacket thicknesses during assembly. Once assembled, the sleeve maintains sufficient clamping force through elastic recovery and friction escalation under tensile load.
Solution Approach 2:
The clamping sleeve is designed as a flexible shell with circumferential grooves that allow radial deformation. This flexible structure can be compressed to fit over hoses of varying thicknesses and then expands to create secure friction contact, providing both adaptability and sufficient clamping force.
3Adaptability or versatility
If multiple clamping devices are used to accommodate different hose jacket thicknesses, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
The clamping sleeve with circumferential grooves is designed as a universal component that can accommodate a wide range of hose jacket thicknesses. The flexible structure with grooves allows single-device adaptability, eliminating the need for multiple specialized clamping devices and reducing overall system complexity.
4Strength
If the hose end is pushed far onto the inner sleeve to ensure secure connection, then the connection strength is sufficient, but the outer sleeve becomes too long and difficult to handle
Solution Approach 1:
The patent replaces the mechanical interlocking system (elevations and grooves) with a friction-based system. The clamping sleeve creates continuous friction contact with the hose end through circumferential grooves, eliminating the need for deep insertion and mechanical engagement features, thereby shortening the outer sleeve length and improving handling.
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
Ensures a secure and reliable connection for hoses of different thicknesses and materials, preventing leakage and slippage under tensile loads, and allows for easy assembly and disassembly without the need for multiple devices.
Implementation Method 1
The elevations and grooves of the clamping sleeve and the inner sleeve engage in one another, with the hose wall of the hose end that has been pushed over the inner sleeve being clamped in between in a sealing manner. The sealing effect is primarily due to the side flanks of the grooves and elevations moving frontally against one another under tension, and to the pressing and friction effect that occurs as a result on these flanks.
Implementation Method 2
In the non-sealing area, the clamping sleeve is provided with holding elements which are designed such that when assembled they assume a penetration position in which they penetrate the hose jacket of the hose end from radially outside
Data Source
Figure 1
Figure 2a~2d
Figure 3a~3b
AI summary
The clamping sleeve (34) has an inner sleeve that is configured to support an end of the tube radially inwardly in the assembled state arranged on the tube end. The inner sleeve is pressed by an outer sleeve against the tube end. The front side of the tube end is located in non-sealing portion (46). The non-sealing portion with retaining elements is designed to occupy penetration position in the assembled state, and is penetrated outwardly into the tube casing of the tube end. Independent claims are included for the following: (1) a tube clamping device; and (2) a method of securing a hose end.