SMARTFY Bathroom Lock B-305 — Full Technical & Functional
Designed specifically as a privacy function lock — ideal for bathrooms, bedrooms, guest rooms, toilets, dressing rooms, and other interior doors where privacy (not high security) is the primary requirement.
This is the type of lock often referred to as a “tubular privacy lockset” or “bath/bathroom lock” — similar in function to ANSI/BHMA privacy locksets used globally.
Construction & Materials
Body & Components
-
Material: 304 Stainless Steel — throughout the lock’s key structural parts including the knob/lever faces, rosettes/escutcheons, and internal mechanisms. This grade resists rust and corrosion, making it suitable for humid environments like bathrooms. f
-
Finish: Satin Nickel — gives a smooth, modern aesthetic with good resistance to shows of fingerprints and wear over time.
304 Stainless Steel is widely used in architectural hardware due to its durability and resistance to oxidation, especially in environments with moisture — such as bathrooms or coastal regions.
Door Compatibility
-
Door Thickness: 40–45 mm (approximately 1⅝″–1¾″), the common range for interior wood or composite doors. Many similar sets also accept slightly wider ranges with spacers/adapters (e.g., 35–50 mm in other models) if needed.
-
Reversible: Works on both left-hand and right-hand doors (orientation doesn’t matter — handle/knob direction can be swapped).
-
Latch Type: Standard tubular latch (spring-loaded bolt) that retracts when the handle/knob is turned.
-
Backset: Usually sized around 60 mm (2⅜″) to 70 mm (2¾″) on similar units, which is the distance from the door edge to the center of the handle hole. (Exact B-305 data not published, but standard practice.)
Locking Function
Privacy (Non-Keyed) Operation
This is not a keyed entry lock, but rather a privacy lock:
Inside:
✔ Turn-button or thumbturn:
-
Engage privacy mode by turning the button/knob on the interior face.
-
The latch cannot be opened from the outside once privacy is engaged.
Outside:
✔ Emergency unlock:
-
A small emergency slot/hole on the outside plate allows unlocking with a simple tool (like a flat screwdriver or coin).
-
This ensures that if someone is accidentally locked inside (e.g., child or elderly person), the door can be safely opened without breaking.
-
This is a standard privacy-function emergency release feature.
This function is common on privacy locks — “locked from inside with manual turn; emergency exit from outside.”
5. Mechanical Details
Latch Assembly
-
Latch Bolt: Spring-loaded, typically solid stainless steel or similarly durable alloy.
-
On many similar units, the latch projects ~12–16 mm when closed, providing secure engagement with the strike plate.
-
Strike Plate: Included, often with screws to secure into the door frame.
Cycle Life & Durability
While specific B-305 cycle tests aren’t published, privacy locks are generally tested to 100,000+ cycles (handle turn and latch operations) — some ANSI/BHMA Grade 3 sets exceed 200,000 cycles.
Reversibility & Installation
-
No special machining: Designed to fit standard bore holes (usually 2¼″ diameter), with a cross-bore and latch bore common to most interior door locksets.
-
Reversible latch: Latch can be flipped for left or right opening.
6. Typical Use Cases
📌 Bathrooms & Toilets — privacy is essential, keyed access is unnecessary
📌 Bedrooms & Guest Rooms — internal privacy lock
📌 Office Meeting Rooms / Changing Rooms — contingent privacy requirement
📌 Hotels or Guest Suites — simple privacy without key management
This lockset does not provide keyed security (like front entry deadbolts) — it is intended for privacy and occupant safety, not burglary resistance.
7. Safety & Compliance Notes
✔ Emergency egress: The outside emergency release allows exit even if locked internally.
✔ Non-security lock: Not designed for external doors or areas requiring theft protection.
✔ 304 Stainless Steel: Suitable for moist and high-usage environments — reduces corrosion and increases service life.
8. Installation Checklist
When installing a SMARTFY B-305 privacy lock:
-
Measure Door Thickness (40–45 mm).
-
Confirm Borehole Size: Standard 54–60 mm (2¼″) cross bore.
-
Align Backset: 60–70 mm typical for latch placement.
-
Insert Latch: With bevel facing door frame.
-
Attach Inside & Outside Plates: Secure with screws.
-
Test Privacy Turn & Emergency Unlock: Ensure smooth operation.
المراجعات
لا توجد مراجعات بعد.