Upvc Door Locking Mechanism Diagram Jun 2026

A heavy solid bar that moves straight horizontally into the frame when key-locked. 2. The Faceplate

The spring-loaded part that holds the door shut without being locked; it retracts when you push the handle. Critical Measurements for Replacement upvc door locking mechanism diagram

+----------------------------------------+ | [ Top Extension Strip ] | <-- Long metal strip (Faceplate) | | | | [Top Hook/Bolt] | <-- Upper locking point | | | | | | | +--------------+ | | | Latch | | <-- Keeps door shut when unlocked | | (Reversible)| | | +--------------+ | | | | | | [Handle]====| ( ) Spindle | | <-- Drives the latch and gearbox | | | | | | [ GEARBOX ] | | <-- Core command unit (Center case) | | | | | | (8) Euro | | <-- Cylinder lock entry point | | Cylinder| | | +--------------+ | | | Deadbolt | | <-- Primary central locking bolt | +--------------+ | | | | | | | | [Bottom Hook/Bolt] | <-- Lower locking point | | | | [ Bottom Extension Strip ] | +----------------------------------------+ 1. Central Gearbox (Center Case) A heavy solid bar that moves straight horizontally

A UPVC door locking system (often called a ) is designed to secure the door at multiple points along the frame—typically top, middle, and bottom. Unlike a standard wooden door lock that uses a single latch or deadbolt, a UPVC lock engages several hooks, rollers, or deadbolts simultaneously when the key is turned or the handle is lifted. a UPVC lock engages several hooks