Privacy lock is a specialised type of locking mechanism designed primarily for securing rooms within residential and institutional settings where temporary privacy is required rather than high-level security. This lock is commonly installed on doors in bathrooms, bedrooms, or any interior space where selective seclusion is desired. The functionality of a privacy lock is characterised by the ability to lock from the inside using a push button or turn knob, without requiring a key for locking or unlocking. From the outside, the door can typically be unlocked using a generic tool or coin in emergency situations, a feature that ensures safety along with privacy.
The design of privacy locks incorporates a simple locking mechanism that makes them less robust against forceful entry compared to entry-grade locks. This design choice reflects the lock's purpose of privacy rather than security. The ease of installation and the user-friendly interface contribute to its widespread use in domestic interiors. Privacy locks are available in various styles and finishes, allowing them to serve both functional and aesthetic roles in interior design. The selection of materials and engineering in the construction of privacy locks ensures durability while maintaining the lightweight nature of the internal locking components. This balance achieves the primary objective of privacy without the complexity and cost of high-security lock systems.