Couplings TRIZ Cases

See how a connection adapter uses axial venting-stop closure before locking to prevent prematur

See how vacuum evacuation to 200 microns and refrigerant pre-charge convert standard mini-split

See how quick connect fittings with vacuum evacuation and refrigerant pre-charge reduce install

See how a traveling service tool with removable core attachment enables refrigerant systems to

See how a collet with radially deforming legs and isolated sealing enables two-second assembly

See how a locking mechanism restricted to one position prevents premature valve opening and ens

See how interference-fit fittings replace welding and polishing in outdoor furniture brackets,

A plug-socket coupling aligns and connects media lines during mechanical joining, cutting separate steps, operator error, and damage risk.

A conduit retainer with deformable barbs and resilient detents holds alignment before pressing, enabling secure gas-tight conduit connections.

A pneumatic piston lets a tractor gladhand slide onto a standard trailer gladhand without rotation, enabling autonomous coupling and release.

An elastic fixing clip replaces threaded joints to speed automotive pipeline assembly while keeping secure locking and easy release.

Detent-based conduit retention keeps electrical conduit aligned and removable before press connection, reducing installation misalignment.

A displaceable holder and guide-pin coupling joins media lines and mechanical parts in one step, cutting replacement time and misalignment damage.

Annular magnets and a seal enable tool-free conduit coupling in dusty, extreme space conditions while reducing dexterity demands.

A sliding shell sleeve and clamping jaws create an airtight tire nozzle seal while enabling faster one-handed connection and release.

An external electromagnetic coil pulls the coupling support member to overcome locking force and make hydraulic quick-connect insertion easier.

A stopper-shielded pressing assembly keeps water-cooling connectors easy to release in tight spaces while resisting accidental separation.

A deep-drawn tubular fitting and separate locking ring cut manufacturing cost while adding anti-rotation and solder-compatible pipe joining.

Guiding protrusions rotate the locking sleeve during insertion, enabling blind mating and secure engagement under vibration.

A split retainer with interlocking male and female connectors enables tool-free fluid assembly in tight spaces while improving seal durability.

Magnetic attraction replaces bulky linkage parts in a female quick connector, simplifying manufacture while keeping secure fluid-line locking.

A secondary retainer locks into the connector groove to back up the clip and prevent tube ejection under high pressure or misinstallation.

Ventilation gaps in a segmented sealing ring expose incomplete press-fit sealing during pressure tests, then close under compression for leak-proof joints.

Outer-wall sealing grooves prevent ring scratching and loosening in quick couplers, improving airtightness, pressure resistance, and assembly reliability.

Graphene-filled end forms, an integrated latch, and an EPDM O-ring cut oxygen and water permeation to preserve coolant volume and ratio.

A nested first and second pin share one pin hole to keep locking and unlocking functions while reducing shell space and structure complexity.

Widened valve joining surfaces self-center during axial coupling to prevent misalignment, reduce wear, and maintain fluid tightness.

A spring-supported pin and rotating ball valve simplify connector engagement while preventing leakage from improper locking.

Graphene-filled end forms, an integrated latch, and an internal O-ring retainer reduce oxygen and water permeation to preserve coolant volume.

A fixed cap and release tool let collet legs lock tubes securely while preventing accidental disconnection and component loss.

A spring piece and pressing ring replace threaded joints to speed water pipe connection and resist loosening under hot-cold cycling.

Synchronized vent opening relieves hydraulic pressure during coupling, cutting connection effort while preserving sealing reliability.

Radial compression, sealing elements, and crimping help vehicular tube joints resist high-pressure fluid leakage in hydraulic assemblies.

A plug-and-twist bayonet lock replaces welding in fluid line couplings, simplifying assembly while securing against reverse rotation.

An integral locking sleeve uses anti-rotation projections and locking recesses to simplify fluid-carrying sleeve connections and cut cost.

Integrated bead locking and a metal-reinforced resin latch cut pipe connection time, reduce parts, and resist external force damage.

A thin-walled pipe coupling uses an internal support and plastically formed latching surface to reduce machining waste and replacement cost.

An axial-sliding floating joint relieves pressure, cuts radial friction, and keeps skewed pipe connections water-tight in compact space.

Dual wall and end-face seals in a quick connector prevent air leakage and improve plug-socket sealing integrity.

Self-centering valve end surfaces prevent axial misalignment, cut wear, and keep fluid coupling and sealing consistent.

An axial disc seal on the sealing piston cuts wear and speeds replacement while spring return shuts off fluid flow to prevent leaks.

A reusable aseptic connector uses interlocked doors and a deformable valve to maintain sterility while simplifying repeated small-volume fluid transfers.

A solenoid-driven piston seals misaligned railcar air hose gladhands automatically, reducing manual coupling risk and improving brake control.

Asymmetric circumferential teeth cut grooves into the pipe during rotation, creating a permanent push-in connection that resists pullout.

A retaining ring and conical ramp give clear full-insertion feedback in blind installs, reducing pressure loss, failures, size, and cost.

Magnetic attraction between the plunger and locking members replaces bulky mechanical locking, enabling compact, reliable fluid coupling.

A two-row steel ball lock and sliding sleeve prevent quick coupler loosening and self-unlocking under vibration.

A shared press contour lets one press jaw connect rigid and flexible pipes, reducing tool changes and on-site installation complexity.

An oval wire retainer lowers tube insertion force in a quick connector while preserving secure groove-based retention.

Separate locking and maneuvering rings with larger actuation balls reduce contamination risk and coupling effort in fluid connections.

A rotatable locking sleeve converts straight insertion into secure coupling, enabling reliable connection in tight spaces with lower pipeline stress.

Separate operating and locking rings limit contamination around the body and balls while lowering coupling force in fluid connectors.

Elastic bearing arms lock the clamp cage only after full insertion, saving space while improving leak resistance and vibration security.

Placing the sealing ring ahead of the locking member eases pipeline insertion while preserving airtight sealing and blocking impurities.

A three-section movable plug and steel ball locking layout improves connector guidance and positioning to reduce loosening and leakage.

Elastic locking and guided blind mating speed high-pressure fluid connection while maintaining secure fixation and low leakage risk.

A pre-mounted locking spring and stop platform enable tool-free one-step refrigerant joint assembly that stays secure under vibration.

A collar-collet snap coupling secures fluid cooling lines with tactile and audible feedback to prevent premature disconnection.

A barbless insert and movable securing clamp let sap hoses connect and disconnect quickly without tools, breakage, or hose damage.

A nested locking and sealing structure keeps a fluidic coupling compact, shock-resistant, and closed when uncoupled.

A floating retaining ring and wave spring keep the seal pack seated and block improper locker engagement in a quick connector.

A chamfered connector end deforms during thermal assembly to keep aircraft conduit bores smooth and prevent trapped fluid residues.

A snap ring interference fit fixes a metal locking sleeve in a plastic pipe connector, avoiding complex groove machining and molding issues.

A control-loop retaining clip keeps connector arms open during insertion, preventing premature locking until full mating is reached.

A detented sleeve and retaining ring replace fatigue-prone springs, keeping quick-connect couplers leak-tight, compact, and easy to assemble.

An angled guiding slot above 45.5° cuts quick-coupling disconnect force by at least 25% while keeping secure latching.

A contact pressure surface below 44.5° lowers coupling and disconnect force while maintaining secure latching in quick fluid couplings.

Magnetic strips guide clamp orientation on flexible vehicle hoses, reducing assembly error, clamp loosening, and coolant leakage.

Rotatable coupling members with concavo-convex engagement and spring bias improve ink flow sealing, alignment, and connection reliability.

Rotatable coupling members with guide grooves improve coaxial ink tube connection, reducing clearance and leakage in inkjet circulation.

A hollow movable valve and nested housing control ink circulation between connected and disconnected states while reducing leaks in inkjet flow paths.

Pivoting ring elements simplify clamping ring production while creating a continuous sealing surface and more uniform pressing force.

A rotating ring and restricting pin split connector joining into axial positioning and rotational locking for faster liquid-tight hydrogen connection.

A spring-loaded tapered sleeve locks a flexible hose securely yet allows tool-free removal and sleeve replacement without destroying the joint.

A bulged insert and movable securing device connect sap hoses quickly, avoid barb damage, and allow repeated disassembly without tools.

A closed mounting ring with pivoting elastic elements improves pipe insertion while keeping the clamping ring stable and correctly positioned.

A pressure-responsive resilient gasket seals the tire valve interface, cutting air loss and improving inflation pressure accuracy.

Magnetic coupling replaces hose clamps so clutch cover hoses disconnect fast for tool-free belt and cover service in UTVs.

A quarter-turn hose adapter compresses an annular seal to create a leak-proof body-fluid suction connection that is easy to release.

A movable retainer grips and latches a tube's radial bead to improve retention and maintain a leak-proof fluid connection.

Radial clamping tabs actuate the valve without axial terminal surfaces, cutting coupling bulk and increasing fluid flow capacity.

Rotating securing tabs and beveled ramps enable automatic locking of tubular connections while resisting vibration and fluid-flow slippage.

By isolating the spring from the flow channel, this receiving unit cuts dead zones and uncontrolled fluid release while maintaining sealing.

An elastically deformable retainer shifts from temporary lock to restriction position, making pipe coupling easy to verify and secure.

A valve cartridge, retainer, and clip block flow before separation to prevent spillage and air inclusion while simplifying coupling assembly.

A three-piece roller freewheel uses sliding shoes and latching features to simplify assembly, improve centering, and support lubrication in vehicle transmissions.

A guided U-clip and flexible ring prevent false locking and show when the male tube end is fully inserted and secured.

A chamfered thermoplastic connector deforms during cooling to keep a constant inner radius, preventing fluid retention in aircraft pipes.

A self-closing seal and simple locking features keep bag connector surfaces cleaner during waste fluid disconnection in medical appliances.

A dual plugging-block check mechanism seals both sides of a pipeline connection to stop liquid escape during quick plugging and unplugging.

Forward-positioned mating seals contact first and separate last, preventing fluid buildup and dripping in pressurized quick couplings.

Differentiated tooth angles and spacing in a wellhead connector balance stiffness differences to even tension and strengthen locking.

A stepped latch holds the endpiece at an intermediate position to purge pressure safely before disconnection and prevent violent ejection.

A self-closing seal and lockable coupling keep medical waste contained during bag changes, reducing outer-surface contamination after uncoupling.

Pivoting arms, flexible bridges, and a rim catch keep a gastrostomy feeding connector rotatable, secure, and resistant to back-flow.

A coaxial insert-and-rotate irrigation coupling uses interleaving fasteners and an O-ring seal to stop leakage and pipe separation during towing.

A single spring and return plunger simplify female fluid coupling locking, cutting bulk, wear, and jamming during unlocking.

A rotating male-female hose connector uses elastic plates to stop twisting and simplify accessory changes without added size or cost.

Hinged latch portions and a spring-loaded tube interface enable hand-operated high-pressure sealing without torque, leaks, or sample contamination.

A pivoting handle with guide slots converts low manual torque into high axial coupling force for secure sealing of multiple pressurized connectors.

A radially elastic spring and rotating ring cut unlocking force while keeping fluid line connections secure and easy to release one-handed.

Automatic poppet and plug sealing keep quick liquid-cooling connections easy to use while reducing turbulence, pressure drop, and cavitation.

Movable support parts, steel balls, and O-rings let one pipe connector socket seal plugs of different lengths while reducing socket count and cost.