Quick-Release Roof Rack Cross Bar Without Roof Perforation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle roof racks are inconvenient to detach and may cause water leakage due to direct welding or threading, which limits their versatility and safety.
Innovation Solution
A quick-mounting quick-release vehicle roof rack cross bar design featuring a base with abutting portions, a moving plate with an arc groove, a locking plate, and a mechanical lock, allowing for secure attachment and detachment without perforating the vehicle body, utilizing friction pads for added stability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rack is directly welded or threadedly fixed to the vehicle roof, then the rack is securely fixed, but the rack cannot be detached and water leakage occurs at perforated positions
Solution Approach 1:
The rack system is divided into separable components: a rack body and a mounting assembly that can be independently attached and detached from the vehicle roof. The mounting assembly includes a base, mounting plate, moving plate, and locking plate that work together as a modular unit, allowing the rack to be securely fixed when needed and easily removed when not needed, without permanent modification to the vehicle roof.
Solution Approach 2:
The mounting plate is designed with movable components including a moving plate that can shift position and a locking plate that can rotate between locked and unlocked positions. The moving plate transitions between different states (attached/detached) through the action of the locking mechanism, enabling dynamic adjustment between secure fixation and easy detachment without compromising connection stability in either state.
2Reliability
If the rack is directly welded or threadedly fixed to the vehicle roof, then the rack is securely fixed, but perforation operations damage the vehicle body and cause water leakage
Solution Approach 1:
A base component serves as an intermediary element that interfaces between the rack body and the vehicle roof without requiring direct welding or threading. The base is sleeved outside the rack body end and provides mounting surfaces for the mounting plate, allowing the rack to be securely attached through friction and mechanical locking rather than permanent fastening methods that would damage the vehicle body.
Solution Approach 2:
The harmful perforation operations (welding or threading) are completely removed from the attachment process. Instead of modifying the vehicle roof with holes or welds, the invention uses a base-mounted system that attaches to the vehicle surface without penetration, eliminating the source of water leakage and body damage while maintaining secure fixation.
3Ease of operation
If a locking mechanism is added to enable quick release, then detachability is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into integrated components: the locking plate simultaneously provides rotational locking action, guides the moving plate through its arc groove path, and engages with the transverse shaft. The moving plate combines translation along the arc groove with rotation about the transverse shaft, creating a compact mechanism where several motions are coordinated through a single locking plate rotation, reducing overall structural complexity despite the enhanced detachability function.
Data Source
AI summary
A quick-mounting quick-release vehicle roof rack cross bar, comprising: a rack body, wherein a base is sleeved outside an end of the rack body, and the base is provided with a first abutting portion; a mounting plate, which is arranged on the base, wherein the mounting plate is provided with an arc groove and a transverse groove; a moving plate, wherein one end of the moving plate is movably connected to the arc groove, the other end of the moving plate is provided with a transverse shaft, the transverse shaft is movably connected to the transverse groove, and the moving plate is provided with a second abutting portion; and a locking plate, which is rotationally connected to the mounting plate, wherein an end of the locking plate is rotationally connected to the transverse shaft.