Snap-Fit Fluid Connector to Prevent Thread Damage and Misalignment
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Solution Overview
Problem
Existing connectors for circuit elements in hydraulic or pneumatic systems require significant time and attention to assemble/disassemble correctly, are prone to thread damage, and irreversible sealing issues, lacking reliability and ease of use.
Innovation Solution
A connector design featuring axially coupled, asymmetrical cup-shaped bodies with snap-fit protuberances and grooves, and flexible tabs for secure, reversible fluid and mechanical connections without threaded parts, allowing easy assembly/disassembly with manual gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If threaded sleeves are used for connection, then the connector can be assembled and disassembled, but the assembly process requires significant time and attention, and thread damage may occur
Solution Approach 1:
The patent extracts and eliminates the threaded connection mechanism from the connector design. Instead of using traditional threaded sleeves that require screwing and unscrewing operations, the invention employs a push-fit coupling system where the first connector is simply inserted into the second connector, removing the time-consuming threading operation entirely.
Solution Approach 2:
The patent replaces the mechanical threading system with a snap-fit mechanical coupling system. The connection is achieved through geometric interlocking features (such as tapered surfaces and retaining rings) that provide secure attachment without requiring rotational screwing motions, thereby dramatically reducing assembly time and eliminating thread damage risks.
2Reliability
If threaded connections are used, then the connector can be assembled, but the installer must pay close attention to correct positioning to avoid damage
Solution Approach 1:
The patent implements self-aligning features in the connector design. The geometric interlocking mechanisms (such as tapered coupling surfaces and positioning ribs) automatically guide the connectors into correct alignment during the insertion process, eliminating the need for the installer to manually position or align the components precisely. The system self-corrects positioning errors that would otherwise require careful manual adjustment.
3Reliability
If threaded sleeves are used, then the connector can be assembled, but thread or sealing system damage can occur irreversibly
Solution Approach 1:
The patent extracts and removes the vulnerable threaded connection elements from the design. By eliminating threads and traditional sealing systems that are prone to damage during assembly and disassembly, the invention prevents the harmful effects of thread stripping, cross-threading, and sealing surface damage that commonly occur with conventional connectors.
Solution Approach 2:
The patent incorporates protective design features that prevent damage before it can occur. The geometric interlocking system includes built-in protection mechanisms such as stress-distributing contact surfaces and controlled engagement sequences that prevent excessive forces from damaging the connection components during assembly and disassembly operations.
4Ease of operation
If threaded connections are used, then the connector can be assembled, but specialized tools may be required
Solution Approach 1:
The patent replaces the complex threaded mechanical system with a simplified push-fit mechanism that eliminates the need for specialized assembly tools. The connection is achieved through direct insertion and automatic mechanical interlocking, requiring only basic manual operations rather than threaders, torque wrenches, or other specialized tools needed for threaded connections.
Data Source
AI summary
A connector for circuit elements of hydraulic or pneumatic systems, comprising: a first connecting body (10) extending along an axis (X); a second connecting body (20) extending along an axis (Y); wherein the first connecting body (10) and the second connecting body (20) can be installed on respective portions of circuit elements and are configured to provide a reversible fluid connection between the circuit elements in which the connector comprises: a first coupling member comprising a male tubular portion on the first connecting body (10) and a respective female tubular portion (23) on the second connecting body (20) to realize a fluid sealing connection by inserting the male tubular portion into a cavity of the female tubular portion (23) configured to guide the male tubular portion; a second coupling member comprising at least one protuberance (14) on an outer surface (11) of the first connecting body (10) and a respective groove (24) on the second connecting body (20) for making a mechanical reversible connection between the first connecting body (10) and the second connecting body (20) in which the protuberance (14) is configured to fit into the groove (24) and prevent an axial extraction between the first connecting body (10) and the second connecting body (20); a third coupling member comprising on the first connecting body (10) at least one flexible tab (15) having a projection (16) on the outer surface (11) and an opening on an external surface (21) of the second connecting body (20) suitable to contain the projection (16) to prevent a relative rotation between the first connecting body (10) and the second connecting body (20) around the respective development axes (X, Y).