Couplings TRIZ Cases

Pre-molded clip slots and a contained retaining clip remove machining debris, prevent clip loss, and simplify fluid connector assembly.

Coaxial sealing, high-temperature, and teeth rings replace threaded joints to prevent pipeline leakage and keep connections stable under heat.

A flattened rear section on the female-end valve stem guides flow forward, cutting pressure drop and preserving heat dissipation efficiency.

Snap-fit joints and sealing grooves replace pins in an oil tubing connector to prevent leaks, simplify assembly, and cut machining steps.

A movable elastic sleeve on a tapered member grips the hose securely, enables easy pullout, and restores water shut-off to prevent leakage.

A secondary retainer adds locking arms and backup securement to keep a tube engaged under high pressure or clip installation failure.

An annular-groove retaining ring locks against rotation, supports the return spring, and keeps pipe coupler flow smooth with fewer parts.

A plunger blocks premature locker engagement, while a floating retaining ring keeps the seal pack seated under fluid pressure.

Axial screw-driven collet locking replaces error-prone rotation sequences and adds a reliable override for stuck subsea fluid connectors.

Internal valve components latch without springs to stop spillage, air inclusion, and contamination during fluid coupling disconnection.

A two-shot molded adaptor joins metal and plastic tubing with a permanent, clamp-free fluid connection for vehicle repair and rerouting.

A ferromagnetic insert is induction-heated into a plastic push-in connector to form a precise seal groove with lower assembly cost.

Flexible engagement arms and deformable locking teeth secure fluid conduits while limiting surface damage and allowing disassembly.

A frusto-conical gripper boosts pullout retention in metallic pipe push fittings by increasing pipe compression to resist leakage.

A rotatable annular switch blocks the pressing fastener until release is intended, enabling one-hand use without accidental connector separation.

Circumferentially spaced flexing members shorten a plastic quick connector and cut leakage points in fluid joints.

A pivoted push member and retaining member convert push motion into smooth radial unlocking, reducing friction, wear, and pipe damage.

An integrated bushing and vent channel improves inflatable element deflation while removing the need for a separate venting part.

Stepped barrels and tapered sealing surfaces help a rigid pipe maintain a fluid-tight hose seal despite heat creep, tolerance variation, and swelling.

A balanced sleeve-and-seal relief valve vents residual pressure so a quick-connect nipple can be coupled by hand while maintaining reliable sealing.

A floating blind-mate connector absorbs insertion and lateral tolerances to simplify liquid cooling assembly and keep connections reliable.

Elastic inward cams raise extraction force over insertion force, improving pipe retention while simplifying clamping ring manufacture.

Separate plastic base and threaded insert improve sealing reliability, simplify thread formation, and reduce leak risk in fluid connections.

An axially offset lock tooth and side actuating surface make female fluid couplings easier and safer to operate around compact nozzles.

A pivoting secondary retainer backs up the retaining clip to stop tube ejection when installation is improper or fluid pressure is high.

Elastic inward cams on segmented ring elements raise pipe contact pressure and friction while simplifying manufacture and preserving seal contact.

A movable sealing member and elastomer channel enable dry disconnection, low residue, and easier disinfection in closed fluid transfer.

A stepped valve sleeve equalizes axial surfaces to cancel pressure force, enabling manual hydraulic coupling without depressurization.

An axially offset latch surface improves access to compact turbo nipples while keeping the tooth securely engaged in the groove.

A spring-loaded retaining member and slant guiding groove keep pipe couplers locked under vibration or impact while allowing quick release.

Dual sensors compare actuator motion and release-member displacement to detect driver clutch input during automatic control with less mechanical complexity.

A supported plug insertion part and lock mechanism prevent coupling bend or breakage while maintaining stable fluid supply.

A nested wave spring inside the closure element improves coupling flow, cutting dead zones, fluid buildup, and unintended escape.

A one-piece valve body and elastic element simplifies acid- and base-resistant quick coupling assembly while reducing misalignment and blockage risk.

A curved inner wall and adapter smooth direction changes in connected flow paths, cutting pressure loss without complex mold inserts.

Parallel springs keep the valve closed until coupling engagement, preventing fluid spillage and air inclusion while preserving low flow resistance.

Spring-loaded dogs and a rotating locking sleeve let workers couple tubulars quickly at ground level, avoiding complex crane operations.

A pre-stressed U-shaped pin cuts manual engagement force in a fluid connector while preserving axial retention during assembly.

A fixed gland and separate colleting ring prevent fluid-pressure spring compression, improving conduit retention and fitting service life.

Flow through a normal-path connector creates retaining force that resists IV line dislodgement during infusion while still allowing controlled release.

Rotating securing tabs and ramp surfaces create automatic lock and release for tubular connections, reducing manual steps in tight spaces.

A dual-lever locking mechanism lets catheters be replaced while keeping the implanted port sealed securely under high fluid pressure.

A tapered insert passage and bearing section reduce shear stress during fluid line insertion, helping prevent connector and line breakage.

Clamping pads and a conical interface open and close the valve automatically, cutting connector bulk while preserving fluid flow and secure terminal grip.

A fit-up sleeve and sealing rings lock liners at the joint to block gas buildup, prevent corrosion, and keep lined pipelines piggable.

An expanding bracing ring locks a fluid connector in a housing depression without extra anti-rotation machining, cutting manufacturing complexity.

A hinged snap-on retainer locks a standard tube with low insertion force, tool-free assembly, better seal protection, and compact serviceable packaging.

Axially spaced retaining members sandwich one sealing element to cut leak points and mounting space in compact hose-to-spigot connections.

Pressure sensing checks whether the crane winch drain pipeline is reconnected and suppresses hydraulic motor pressure rise at engine start.

A two-piece locking retainer secures fluid connections in tight appliance spaces, cutting insertion force and avoiding brittle barbed tubes.