Door Lock Control Structure with One-Piece Casing and Motor Actuation
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Solution Overview
Problem
Conventional door locks experience operational difficulties over time and are prone to deformation, leading to inefficient unlocking and locking mechanisms.
Innovation Solution
A control structure for a door lock featuring a one-piece first and second casing, a motor-driven guide gear system that actuates a rotatable sheet and slide cylinder, and a tongue mechanism extending or retracting within the body to facilitate easy unlocking and locking, reinforced by a locating bolt and resilient elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional door locks use multiple connected components, then the lock can be assembled, but it operates badly after a period of using time and is operated poorly
Solution Approach 1:
The patent merges the first and second casings into a one-piece formed structure, eliminating the need for multiple connected components. This integration reduces wear at connection points and improves overall operational reliability while maintaining the functional complexity of the lock mechanism.
Solution Approach 2:
The lock body is segmented into distinct functional regions (first casing with connection portion, second casing with corresponding connection portion) that can be manufactured separately and then joined, allowing for optimized manufacturing while achieving structural integration that improves reliability.
2Strength
If conventional deadbolt is used, then the lock can be manufactured, but it is deformed easily after being hit
Solution Approach 1:
The one-piece formed casing structure provides enhanced structural strength and resistance to deformation compared to assembled components. The integrated design eliminates weak points at connection interfaces, allowing the lock to withstand impact forces without deformation while maintaining manufacturability through modular casting or molding processes.
3Reliability
If the tongue is not safely pushed by the locating bolt, then the locking mechanism can be simple, but the locking safety is compromised
Solution Approach 1:
The locating bolt serves as an intermediary element that safely pushes the tongue during the locking process. This dedicated locating component ensures proper positioning and safe actuation of the tongue, compromising neither locking safety nor overall device complexity by providing a simple yet effective intermediary mechanism.
Data Source
AI summary
A control structure of a door lock contains: a body, a partition, a motor, a slide cylinder, a rotatable sheet, a tongue, a locating bolt, a first resilient element, and a second resilient element. The body includes a first casing, a second casing, an open segment, a close segment, an operation space, a holder, and a groove. The partition includes a first slot, multiple actuation portions, two hooks, two seats, two connection orifices, and multiple extensions. The motor includes a guide gear, and the slide cylinder includes an accommodation chamber, a receiving trench, at least one second slot, and a post. The rotatable sheet includes a curved face, a chute, a drive section, and a toothed portion. The tongue includes a lock segment, a notch, an engagement segment, two fixing portions, and two retainers. The locating bolt includes a defining fringe and a connection protrusion.