Trailer Connector Sleeve Lock with Rotating Cover
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Solution Overview
Problem
Existing trailer locks are bulky, poorly adaptable, difficult to install, and expose the lock tongue, making them vulnerable to theft and ineffective in preventing trailer theft.
Innovation Solution
A trailer connector sleeve lock comprising a lock cover, lock tongue piece, and lock hole plate that form a sleeve lock structure, where the lock tongue is clamped and covered, requiring a larger cutting area for tampering, and secured with an additional lock, enhancing protection and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lock tongue is exposed outside for easy access, then the ease of operation is improved, but the vulnerability to cutting attacks increases, worsening the reliability
Solution Approach 1:
The lock tongue is nested inside the lock hole plate, which is rotatably installed within the lock cover. The lock hole plate rotates to either expose or conceal the lock tongue, allowing the tongue to be protected when not in use while remaining accessible when needed.
Solution Approach 2:
The lock hole plate is made rotatable around a rotating shaft, allowing dynamic transition between open and closed states. This enables the lock tongue to move between exposed and concealed positions, adapting to different operational needs while maintaining security.
2Device complexity
If a simple lock structure is used, then the device complexity is reduced, but the adaptability to different trailer connectors decreases
Solution Approach 1:
The lock hole plate serves multiple functions: it acts as a protective cover for the lock tongue, provides a rotating mechanism for exposure/concealment, serves as a mounting structure via the rotating shaft, and creates a restricted opening that controls access. This multi-functionality achieves adaptability without increasing overall structural complexity.
3Reliability
If the lock tongue piece is completely covered, then the protection effect is improved, but the ease of installation deteriorates due to tighter fitting requirements
Solution Approach 1:
The locking mechanism is divided into separate components: the lock cover, the lock hole plate, and the lock tongue piece. This segmentation allows each part to be manufactured and assembled independently, with the lock hole plate serving as an intermediate structure that facilitates installation while providing complete coverage when closed.
Data Source
AI summary
The present invention discloses a trailer connector sleeve lock, comprising a lock cover, a lock tongue piece and a lock hole plate, wherein the lock hole plate is rotatably installed on the lock cover and is provided with a lock hole, and the lock hole plate rotates to the lock cover to serve as the side wall of the lock cover, they are spliced together to form a sleeve lock structure, wherein an opening is arranged above the sleeve lock structure, and the opening is smaller than the size of the lock tongue piece, wherein the lock tongue piece is provided with a lock tongue and is clamped in the sleeve lock structure, wherein the lock tongue extends out of the lock hole and is fixed through an additional lock. The advantageous effects of the present invention are that: the lock cover and the lock hole plate are spliced into a sleeve lock structure, and then the lock tongue piece is clamped in the sleeve lock structure, the lock tongue in the lock tongue piece extends out of the lock hole plate, and then the trailer is locked in such a manner that the lock tongue is fixed by the additional lock, and the installation is convenient. The four sides of the lock tongue piece are completely covered by the lock cover, and the lock tongue is inserted into the lock hole plate, so that a thief cannot damage the sleeve lock by cutting the lock tongue. The damage difficulty is high, the time-consuming is long, and the protection effect is good.