ZEEKR & Geely Launch Front Axle Fastener Patent

[Abstract]:ZEEKR and Geely obtain Patent CN223546124 U for front axle rod structure filed in January 2025.

According to CNIPA’s latest publication, Zhejiang ZEEKR Intelligent Technology Co., Ltd. and Zhejiang Geely Holding Group Co., Ltd. jointly acquired a utility model patent titled Front Axle Rod Structure, Front Axle Assembly and Vehicle, Publication No. CN223546124 U filed in January 2025. Optimized fastener construction resolves recurring loosening defects of conventional front axle joints.

As a core chassis component, front axle rod connection determines vehicle handling and driving safety. Traditional clamping relies purely on threaded fasteners limited by stabilizer bar thickness; insufficient residual preload triggers loose fasteners under long-term vibration and incurs potential safety hazards.

The patented assembly consists of connecting rod, stabilizer bar and customized fasteners. Integral threaded stud is molded onto the ball pin of the connecting rod and penetrates the through-hole of the stabilizer bar. The internally threaded fastener locks components to form fixed clamping assembly.

A unique idle bore adjoining the fastener’s inner thread constitutes the core innovation. The threaded stud passes sequentially through stabilizer hole and idle bore before thread engagement. Total clamping span equals stabilizer thickness plus idle bore axial length, exceeding conventional clamping dimension.

Extended clamping range raises residual preload and interfacial friction to strengthen anti-loosening capacity without altering overall part dimension or mounting space, fundamentally eliminating fastener loosening risks and improving joint durability.

Subjected to continuous vibrational loads from uneven road surfaces, conventional front axle connections suffer frequent fastening failure. The patented structure enhances vibration resistance, cuts after-sales maintenance cost and upgrades vehicle controllability.

This breakthrough highlights both enterprises’ fundamental component R&D competence and delivers an innovative route for front axle connection optimization. Mass production adoption is expected to elevate industrial reliability benchmarks and inspire fastener design across diverse mechanical assembly fields.

Granted officially, the patent is scheduled for progressive industrialization. Growing automotive safety standards drive rising demand for upgraded core components, with such patented solutions underpinning technical evolution of new-energy and intelligent connected vehicles.

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ZEEKR & Geely Launch Front Axle Fastener Patent

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