Longitudinal Door-Lock Layout for Narrow Sectional Door Frames
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Solution Overview
Problem
Traditional door-lock driving devices are too wide to be directly installed on the narrow metal door-frames of sectional doors, which are commonly made of aluminum or stainless steel and have a width of about 50 mm, rendering them incompatible with the existing sectional door design.
Innovation Solution
A narrow-type door-lock driving device is designed with components arranged along a longitude direction to form a power transmission chain, allowing installation on narrow-type door-frames by transmitting power through a base, status switching mechanism, status switching lock, lock core driving mechanism, and gear seat return spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional door-lock driving device is designed with sufficient space for mechanism, then the device functionality is ensured, but the device width becomes too wide to be installed on narrow metal door-frames
Solution Approach 1:
The patent reconfigures the component layout from a traditional wide arrangement to a longitudinal arrangement along the door-frame width direction. The base, status switching mechanism, lock core driving mechanism, and gear seat are positioned sequentially along the longitude, transforming the power transmission chain from a wide lateral layout to a compact longitudinal layout that fits the 50mm door-frame width
Solution Approach 2:
The patent employs nested positioning where the status switching mechanism is integrated within the base structure, the lock core driving mechanism is positioned within the base, and the gear seat is arranged within the base along the longitude. This nested arrangement maximizes space utilization and achieves compact dimensions suitable for narrow door-frames
2Adaptability or versatility
If the door-lock driving device body width is reduced to fit narrow door-frames, then installability is improved, but the internal space for mechanism becomes compact
Solution Approach 1:
The patent divides the door-lock driving device into distinct functional modules: base, status switching mechanism, lock core driving mechanism, and gear seat. Each module is compactly designed and positioned sequentially along the longitude of the base. This segmentation allows efficient space utilization within the narrow width constraint while maintaining all necessary functions
Solution Approach 2:
The patent combines multiple functions into integrated components. The base serves as both the mounting structure and the housing for internal mechanisms. The status switching mechanism integrates the lever, stopper, and status switching lock into a compact assembly that performs both status indication and locking control functions within limited space
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 the installation of the door-lock driving device on narrow-type door-frames by ensuring compactness without compromising functionality, maintaining the structural integrity and security of sectional doors.
Implementation Method 1
The lever (21) is pivoted to the base (1)
Implementation Method 2
The gear seat (531) is engaged with the rack (521), driven by the linkage plate (52)
Implementation Method 3
The gear seat return spring (6) is disposed between the base (1) and the gear seat (531)
Data Source
AI summary
A narrow-type door-lock driving device, disposed at a sectional door board, includes a base, a status switching mechanism, a status switching lock, a handle and a lock core driving mechanism. The status switching mechanism includes a lever and a stopper. The status switching lock connects with the lever and moves between a forbidden opening position and an allowing opening position by the lever. The lock core driving mechanism connects with the handle, blocked by the stopper and forbidden to be driven by the handle to keep the deadbolt snapping into the locking groove to maintain locked when the stopper is in the stop position, driven by the handle to allow driving a lock core component when the stopper is in the avoidance position, thereby allowing the deadbolt to snap out of the locking groove.