Upvc Door Locking Mechanism Diagram Guide

Most uPVC door locks are known as . They are long strip mechanisms that lock the door at multiple points (top, middle, and bottom) simultaneously.

The is essential for understanding:

Square or rectangular bolts that extend straight into the frame. upvc door locking mechanism diagram

This is the metal box in the center of the strip. This is the part that most commonly breaks. Most uPVC door locks are known as

These are the moving parts that physically secure the door to the frame. Different manufacturers use different styles: This is the metal box in the center of the strip

[Top of door] │ │ [Top roller cam / hook] ──────► engages with keep on frame │ │ [Gearbox] ◄───── [Key cylinder hole] │ │ │ │ │ [Main latch / spring bolt] ◄─ operates by handle │ │ [Bottom roller cam / hook] │ [Bottom of door]