Adhesive-Mounted Door Locking with Wireless Linear Actuation
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Solution Overview
Problem
Existing door locking solutions are bulky, unreliable, and intrusive, lacking a compact, visually appealing, and non-intrusive option that can be remotely controlled and securely attach to doors without leaving installation marks.
Innovation Solution
A removable, non-intrusive door locking apparatus with a DC-powered linear actuator, wireless communication, and adhesive attachment, featuring a foot that extends or retracts to lock/unlock the door, along with a force sensor and battery level indicator, controlled via a smart device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stronger lock or additional locks are installed, then door security is improved, but the installation becomes permanent and intrusive
Solution Approach 1:
The locking device is divided into separate components: a rear plate that attaches to the door, a linear actuator mechanism, and a foot that extends to secure the door. This segmentation allows the device to be installed and removed as a complete unit without permanent modifications to the door structure.
Solution Approach 2:
The patent replaces traditional mechanical spring-loaded mechanisms with a DC-powered linear actuator controlled by wireless signals. This substitution eliminates the need for mechanical springs and extendable straps, allowing for a more compact design that can be remotely operated without complex mechanical linkages.
2Reliability
If an extendable strap is used to attach the locking apparatus, then the door can be secured, but the strap is bulky and interferes with the doorknob operation
Solution Approach 1:
The patent replaces the mechanical extendable strap system with a DC-powered linear actuator that directly extends a foot to secure the door. This eliminates the bulky strap and its associated mechanical springs, resulting in a more compact and less intrusive attachment mechanism that does not interfere with doorknob operation.
3Device complexity
If the locking apparatus is made compact and non-intrusive, then visual appeal is improved, but remote control capability is reduced
Solution Approach 1:
The patent incorporates a DC-powered linear actuator with wireless communication electronics that can be integrated into a compact housing. This allows the device to maintain small size while providing remote control capability through wireless signals from a smartphone or other remote device, eliminating the need for bulky mechanical control linkages.
4Object-affected harmful factors
If adhesive attachment is used, then the door is not damaged, but the attachment strength is reduced
Solution Approach 1:
The rear plate is designed to be attached to the door using adhesive substance before the locking mechanism is activated. This preliminary attachment provides a stable mounting surface that distributes the locking forces across a larger area, maintaining sufficient attachment strength while preventing damage to the door surface.
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
Provides secure, compact, and visually appealing door locking with remote control, alert functionality, and battery status monitoring, ensuring reliable operation without damaging the door.
Implementation Method 1
a rear plate for attachment against a surface of a door using an adhesive substance
Implementation Method 2
a DC-powered linear actuator enclosed within the removable cover and connected to the rear plate, at least one electronics module attached to the rear plate and configured to communicate wirelessly, and a foot attached to a lower end of the DC-powered linear actuator, the foot configured under actuator control to be extended in a lock state against a floor surface to secure the door or retracted in an unlock state
Implementation Method 3
a force sensor attached to the rear plate for, upon receiving a wireless control signal by at least one electronics module from a user of the remote smart device placing the remotely-controlled door locking apparatus in a lock state, sensing a movement condition of the door while in its locked state
Data Source
AI summary
In order to secure a door in a locked position without a key, such as to resist a forced entry through the door, a removable, non-intrusive, remotely-controlled door locking apparatus is provided, which includes a rear plate for attachment against a surface of a door using an adhesive substance, a flange that extends from the rear plate under the door, and a cover for enclosing components on the rear plate. A DC-powered linear actuator connected to the rear plate and at least one electronics module configured to communicate wirelessly is within the cover. A foot of the actuator is configured to be extended in a lock state against a floor surface to secure the door or retracted in an unlock state, based on either a wireless signal received from a remote smart device or the state of a manual switch located on apparatus to control the actuator.