📚 Bilingual Mechanical & Smart Retrofit Engineering Glossary

A standardized bilingual reference dictionary designed for global locksmiths, hardware product managers, and mechanical CAD specifiers.


English Engineering Term 中文标准工程术语 Standard Mechanical Spec Smart Retrofit Relevance
Mortise Lockset 嵌插式锁体 / 插芯锁 DIN 18251 / ANSI A156.13 Installed inside door stile pocket; requires precise spindle & PZ alignment.
Rim Lock / Deadlatch 表面安装外装锁 / 夜闩 AS 4145.2 / BS 3621 Surface mounted on inside door face; motor chuck attaches to teardrop turn.
Euro Profile Cylinder 欧标葫芦槽型锁芯 EN 1303 / DIN 18252 33mm height teardrop core; requires dual-clutch emergency function.
Thumbturn 室内旋转旋钮 / 手扭 ANSI A156.36 / JIS A4702 Primary mechanical interface rotated directly by retrofit motor actuator.
Tailpiece 锁芯尾轴 (扁条/十字) ANSI Deadbolt standard Flat blade (4.5mm or 2.2mm) connecting outside cylinder to deadbolt cam.
Spindle (Square Bar) 执手联动方轴 / 连杆 7mm (FR) / 8mm (DIN) / 9mm (Fire) Transmits handle rotation to mortise follower; requires adapter sleeves.
Escutcheon Plate 遮盖大面板 / 装饰修饰板 Architectural Cover 260x65mm Conceals legacy screw holes and door paint scars during retrofit upgrade.
Strike Plate & Box 门框锁扣板与防尘扣盒 ANSI / DIN strike standards Receives latch/deadbolt; must have 2mm chamfer to prevent motor binding.