Lever Door Lock Driving Assembly Miniaturization
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Solution Overview
Problem
Conventional lever-type door locks have inefficiencies in durability and miniaturization due to unnecessary space in installation holes and non-compatible driving units, limiting versatility and product design.
Innovation Solution
A driving assembly with a truncated disc-shaped mounting module and a motor unit integrated within the installation hole, utilizing reduction gears and a connection release mechanism to minimize size and eliminate external driving unit requirements, allowing direct connection to the latch operating body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driving unit is provided outside the door, then the door lock can be operated, but the apparatus size increases and durability decreases
Solution Approach 1:
The patent merges the driving unit with the mounting module by integrating the motor unit directly into the mounting module that is installed within the door. This combination eliminates the need for separate external driving units, thereby reducing overall apparatus size while maintaining operational functionality.
Solution Approach 2:
The motor unit is nested within the mounting module structure, with the motor unit occupying the central region of the mounting module. This nesting arrangement allows the driving components to be contained within the door's installation hole, minimizing external protrusions and reducing apparatus volume.
2Ease of operation
If the driving unit is provided outside the door, then the door lock can be operated, but the door structure becomes fragile
Solution Approach 1:
By combining the driving unit with the mounting module and installing both within the door, the patent eliminates the need for external mounting structures that would create weak points in the door. The integrated design strengthens the door structure by removing unnecessary external components and installation holes.
3Ease of manufacture
If different driving units are used for different door lock products, then each product can be optimized, but versatility and general application are reduced
Solution Approach 1:
The patent designs the mounting module with a standardized structure that can accommodate different motor units and driving mechanisms. The mounting module includes a universal interface and mounting structure that allows it to be adapted to various door lock product types, enabling one mounting module design to serve multiple product applications.
Solution Approach 2:
The patent separates the driving unit into modular components (motor unit, gear portion, driving plate) that can be independently configured within the standardized mounting module. This segmentation allows different combinations of components to be used for different door lock products while maintaining compatibility with the same mounting module structure.
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 solution enables downsizing of the door lock apparatus, prevents fragile areas on the door, and enhances versatility by utilizing empty space within the installation hole, allowing compatibility with various lever-type door lock products.
Implementation Method 1
the worm gear is elastically supported by a spring on a rotary shaft of the other reduction gear
Data Source
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AI summary
Disclosed is a lever-type door lock driving assembly (100) which can be installed inside a mounting hole (H) to enable miniaturization of the device, ensure general versatility, and prevent a fragile area from being generated inside the door (D). The present invention relates to a driving assembly (100) for a lever-type door lock arranged in an installation hole (H) to drive a latch operating body (20), wherein the mounting assembly (100) comprise a mounting module (50) having a truncated disc shape and having at least one driving plate (19) therein; and a motor unit (10) mounted on the truncated area of the mounting module (50) and having a disc shape in a state of being coupled to the mounting module (50).