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CRRC Qingdao Sifang Secures Patent for Screw Seat Positionin

[Abstract]:Recently, the China National Intellectual Property Administration (CNIPA) disclosed that CRRC Qingdao Sifang Co., Ltd. ("CRRC Qingdao Sifang") has obtained a key patent in the rail vehicle sector: the "Screw Seat Positioning Device, Underframe Equipme

Recently, the China National Intellectual Property Administration (CNIPA) disclosed that CRRC Qingdao Sifang Co., Ltd. ("CRRC Qingdao Sifang") has obtained a key patent in the rail vehicle sector: the "Screw Seat Positioning Device, Underframe Equipment Cabin Assembly, and Rail Vehicle." The patent, with authorization announcement number CN 223359637 U, was filed in November 2024. Its technological innovations focus on enhancing the efficiency and precision of screw seat positioning, offering a new solution for optimizing rail vehicle assembly processes.

According to the technical details in the patent abstract, the core of this utility model lies in establishing a "multi-component collaborative positioning" system. It primarily consists of four core components: the screw seat body, a first positioning element, a connecting element, and a second positioning element, each with a clear and complementary function. The first positioning element is designed to directly engage with the positioning eyelet of the rail vehicle, providing an initial positional reference for the screw seat. The connecting element acts as a "bridge," securely fixed to the screw seat body at one end and stably connected to the first positioning element at the other, ensuring their relative positions remain fixed. The second positioning element is integrated onto the screw seat body, serving as a "fine-tuning unit" for further positional calibration.

The innovative value of this design lies in addressing the pain points of traditional screw seat assembly in rail vehicles. Previously, positioning the screw seat relative to the eyelet relied on manual layout marking, which was not only time-consuming but also prone to human error, leading to positioning deviations. This could compromise subsequent assembly precision and potentially impact the vehicle's operational stability. Through the combined design of "initial positioning by the first element + precise calibration by the second element + stable connection by the connecting element," this patent enables rapid alignment of the screw seat body with the positioning eyelet, completely eliminating the need for manual marking. It meets the efficiency demand for "rapid positioning" while ensuring the precision requirement of "accurate positioning," ultimately significantly boosting the assembly efficiency and accuracy of critical areas like the underframe equipment cabin, and indirectly reducing rework costs during production.

As a core enterprise in rail vehicle manufacturing, CRRC Qingdao Sifang's R&D strength is further evidenced by its corporate background. Public records show the company was founded in 2002 and is headquartered in Qingdao, Shandong Province. Its main business covers the manufacturing of railways, ships, aerospace, and other transportation equipment, with a registered capital of over 7.1 billion RMB, holding a prominent position in China's high-end rail equipment manufacturing, such as high-speed trains and EMUs.

Regarding its business layout and intellectual property accumulation, CRRC Qingdao Sifang has invested in 27 companies, covering the upstream and downstream of the rail equipment supply chain and forming a relatively complete industrial synergy system. In terms of market expansion, the company has participated in 5,000 bidding projects, demonstrating strong competitiveness in both domestic and international rail equipment markets. In the realm of technological innovation, the company holds 47 trademarks and 5,000 patents. This newly approved screw seat positioning patent is a microcosm of its 5,000-strong patent portfolio, highlighting the company's continuous investment in core process technology R&D. Additionally, its 112 administrative licenses confirm that its production and operations fully comply with industry standards, providing compliance assurance for the implementation and commercialization of its technological achievements.

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CRRC Qingdao Sifang Secures Patent for Screw Seat Positionin

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