Bathroom Lock Structure With Visual Status and Emergency Release
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Solution Overview
Problem
Existing bathroom locks lack real-time indication of unlocking/locking states and have inconvenient emergency unlocking mechanisms, affecting user experience and safety.
Innovation Solution
A bathroom lock structure with an indoor handle featuring a deblocking button and a spiral groove, a safety rod, a locking cam, and a display block, allowing for visual indication of locking/unlocking states and an emergency unlocking mechanism through a cam and reset spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a traditional bathroom lock is used, then the locking function is achieved, but the user cannot visually understand the locking state in real time
Solution Approach 1:
The patent uses color-coded surfaces (black for unlocked, red for locked) on the display block to visually indicate the locking state. This allows users to quickly understand the lock status at a glance without adding complex electronic components, resolving the contradiction between information visibility and device complexity.
Solution Approach 2:
The display block acts as an intermediary element that translates the mechanical locking state into visible color information. It is driven by the cam mechanism and positioned to align with the display hole, providing visual feedback without requiring complex electronics or sensors.
2Reliability
If the emergency unlocking mechanism is added, then the safety is improved, but the device complexity increases
Solution Approach 1:
The cam mechanism serves multiple functions: it controls the locking/unlocking operation during normal use, drives the display block to show the locking state, and enables emergency unlocking when pressed. This multi-functionality reduces the need for separate mechanisms, thereby improving reliability while minimizing the increase in complexity.
Solution Approach 2:
The emergency unlocking mechanism is designed to be simple and intuitive, allowing users to perform emergency unlocking themselves by pressing the display block with a cylindrical object. The reset spring automatically returns the cam to its initial position after emergency unlocking, eliminating the need for manual resetting or additional components.
3Reliability
If the deblocking button sliding mechanism is used, then the locking/unlocking operation is achieved, but the ease of operation is reduced compared to simple knob turning
Solution Approach 1:
The knob is designed with a curved surface that provides ergonomic grip and natural hand positioning. The spiral groove on the knob surface offers tactile guidance during the sliding operation, making the deblocking button pressing action more intuitive and easier to perform, thus improving ease of operation while maintaining reliable locking.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable locking and unlocking functions with clear visual state indication, enhancing user experience and safety by providing a convenient and flexible operation with an emergency unlocking feature.
Implementation Method 1
a display block (5) with a torsion spring (54)
Implementation Method 2
the cam is reset under an action of the reset spring
Data Source
AI summary
A bathroom lock structure is provided, which includes an outdoor handle and an indoor handle. The indoor handle is provided with a knob with a spiral groove, a deblocking button in the indoor handle can be slid to cause a column on the deblocking button to be clamped in the spiral groove, a safety rod located in a first square hole within in the knob is driven to rotate. A locking cam in a shielding cover on the outdoor handle is driven to rotate by a rotation of the safety rod, thereby achieving locking or unlocking function. This bathroom lock structure achieves reliable locking and unlocking functions through exquisite mechanical design, thereby improving flexibility and convenience of use. The state of the lock can be observed through a display hole on the outdoor handle, allowing a user to clearly understand a current state of the lock.