RV Door Lock Transmission Device with Eccentric Gear Self-Locking
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Solution Overview
Problem
Existing recreational vehicle door locks lack a self-locking mechanism, making them vulnerable to external forces and vibrations, which can cause the deadbolt to retract into the lock body, compromising safety.
Innovation Solution
A transmission device for a recreational vehicle door lock featuring a first and second lock body with a detachable connection, incorporating a transmission mechanism with a deadbolt and a first gear. The mechanism includes an eccentric part on the first gear that slidably connects with the deadbolt, forming a triangular support structure in the self-locking state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple deadbolt mechanism is used, then the device complexity is reduced, but the reliability of the door lock is compromised due to lack of self-locking function
Solution Approach 1:
The patent employs asymmetric geometry in the triangular support structure formed by the deadbolt, first gear, and second gear. The specific arrangement where the deadbolt, first gear, and second gear form a triangle with specific positional relationships creates an asymmetric self-locking configuration that prevents reverse movement while maintaining structural simplicity
Solution Approach 2:
The patent implements preliminary action through the self-locking mechanism that automatically engages when the deadbolt is extended. The triangular support structure is pre-configured to automatically lock the deadbolt in its extended position through the geometric constraints of the gear and deadbolt arrangement, eliminating the need for additional locking steps
2Ease of operation
If no self-locking mechanism is provided, then the ease of operation is improved, but the door lock becomes vulnerable to external forces and vibrations
Solution Approach 1:
The patent applies self-service through the automatic self-locking mechanism. When the deadbolt is extended, the triangular support structure formed by the deadbolt, first gear, and second gear automatically engages to lock the deadbolt in place without requiring any additional user action. The system serves itself by using the existing mechanical components to create the locking function
Solution Approach 2:
The patent implements preliminary anti-action through the self-locking mechanism that preemptively counteracts external forces before they can cause damage. The triangular support structure is designed to automatically engage and prevent the deadbolt from being pushed back into the lock body, thereby preventing harmful effects from external forces or vibrations before they can compromise the door lock
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 self-locking mechanism enhances the safety of the door lock by preventing the deadbolt from being pressed back into the lock body under external forces or vibrations, thereby improving the overall security of the recreational vehicle.
Implementation Method 1
the eccentric part and the deadbolt have a movable state and a self-locking state therebetween; when in the self-locking state, the eccentric part and the deadbolt form a triangular support structure
Data Source
AI summary
A transmission device for a door lock of a recreational vehicle comprises a first lock body and a second lock body that are detachably connected; the first lock body and/or the second lock body are provided with a transmission mechanism; the transmission mechanism comprises a deadbolt capable of sliding linearly and a first gear for pushing the deadbolt to slide; the radial surface of the first gear is provided with an eccentric part far away from the center of the gear, and the eccentric part is inserted into the deadbolt and is slidably connected with the deadbolt.