Door Lockset with Pressable Lever and Finger Signal Unlocking
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Solution Overview
Problem
Existing locksets with dual lock bolts face inefficiencies in unlocking mechanisms, particularly when the outer handle cannot be rotated, limiting their applicability in certain scenarios.
Innovation Solution
A lockset design featuring two lock bolts with a lever component that tilts to retract the second lock bolt and includes a pickup device on the outer handle to capture a biological signal, which, when authorized, controls an electric driver to retract the first lock bolt, simplifying the unlocking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotating handle is used for unlocking, then the unlocking operation is simple, but it becomes useless when the outer handle cannot be rotated
Solution Approach 1:
The outer handle is changed from a rotating mechanism to a pressable lever mechanism. The lever can tilt around a fulcrum when pressed, providing a different operational mode that works when rotation is not possible. This dynamic change in operational mechanism resolves the contradiction between ease of operation and adaptability.
Solution Approach 2:
The operational parameter of the handle is changed from rotational motion to linear pressing motion. This parameter change allows the lockset to function in scenarios where rotation is restricted, thereby improving adaptability while maintaining ease of operation through the pressing action.
2Reliability
If two independent unlocking devices are provided for two lock bolts, then the anti-theft performance is improved, but the device complexity increases
Solution Approach 1:
The lever component is merged with the pickup device and controller to form an integrated control system. When the lever is pressed, it simultaneously triggers the pickup device to capture the biological signal and activates the controller to drive both lock bolts, reducing structural complexity while maintaining dual-lock security.
Solution Approach 2:
The lever component serves multiple functions: it acts as a mechanical actuator for the second lock bolt, a trigger for the biological signal pickup device, and an interface for user interaction. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity while maintaining anti-theft performance.
3Adaptability or versatility
If the lever component is pressable to tilt and retract the second lock bolt, then the adaptability is improved, but the ease of operation may be reduced due to the need for precise pressing
Solution Approach 1:
The pickup device automatically captures the biological signal when the lever is pressed, without requiring the user to perform separate actions. The system self-activates the unlocking sequence upon detection of the pressing action, maintaining ease of operation while improving adaptability.
Solution Approach 2:
The controller provides feedback by automatically activating the first electric driver to retract the first lock bolt when the biological signal is verified. This feedback mechanism ensures that the user's pressing action on the lever leads to a complete unlocking sequence, maintaining operation convenience while enabling adaptability to non-rotational scenarios.
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
The tilting unlocking mechanism and biological signal capture enhance convenience and adaptability, allowing for seamless operation even when traditional handle rotation is not possible, improving user experience and security.
Implementation Method 1
the pickup device is in electrical signal connection with a controller; when the finger exerts the pressing action such that the lever component tilts to retract the second lock bolt, the pickup device synchronously picks up the biological signal of the finger that exerts the pressing action
Implementation Method 2
a first electric driver, where when the first electric driver operates, the first lock bolt is driven to retract
Data Source
AI summary
A lockset for locking a door leaf includes a first lock bolt, a second lock bolt, a first electric driver, and a lever component. The lever component is configured to tilt around a fulcrum, and the lever component comprises an inner end and an outer handle. The inner end of the lever component is drivingly connected to the second lock bolt. The outer handle of the lever component is configured to receive a pressing action of a hand. When the outer handle of the lever component is pressed, the lever component tilts, allowing the inner end to drive the second lock bolt to retract. The outer handle of the lever component is provided with a pickup device for picking up a biological signal of a finger. The pickup device is in electrical signal connection with a controller. The controller is configured to control the first electric driver to operate.