China Railway Construction Heavy Industry applies for flexible belt conveyor related patents, flexible belt conveyor unit vehicle universal joint connection, flexible turning with small radius.

March 21 News: According to information from the China National Intellectual Property Administration, China Railway Construction Heavy Industry Group Co., Ltd. has applied for a patent titled “Flexible Belt Conveyor and Tunneling Equipment.” The application publication number is CN121672089A, the application number is CN202610161614.0, the publication date is March 17, 2026, and the application date is February 4, 2026. The inventors are Zhang Tingshou, Bi Haiyun, Dong Shuai, Xiong Shiwei, Zhang Guorong, Gan Jun, Guo Chao, and Xu Pengwei. The patent agency is Beijing Chaofan Hongyu Intellectual Property Agency Co., Ltd., with patent agent Zhang Yang. The classification codes are B65G15/32, B65G15/24, B65G21/10, and E21D9/12.

Patent Abstract: The present application provides a flexible belt conveyor and tunneling equipment, relating to the technical field of tunnel excavation. The flexible belt conveyor includes a frame and a drive drum, redirecting drum, and conveyor belt mounted on the frame; the conveyor belt is sleeved on the drive drum and the redirecting drum; the drive drum and redirecting drum are respectively located at both ends of the frame. One end of the unit car is equipped with a universal joint device, which includes a caster wheel and a first connecting piece, connected to the caster wheel; the other end of the unit car has a second connecting piece, used to connect with the first connecting piece of an adjacent unit car. Multiple unit cars are connected via the universal joint device, enabling flexible steering of multiple units, making turning easier with a smaller turning radius.

China Railway Construction Heavy Industry was established on November 23, 2006, and listed on the Shanghai Stock Exchange on June 22, 2021. Its registered and office address is in Changsha, Hunan Province. It is a leading domestic high-end equipment manufacturing enterprise, focusing on R&D and manufacturing of high-end equipment with strong technical capabilities.

The company’s industry classification is Mechanical Equipment - Construction Machinery - Complete Construction Machinery, involving concepts such as railway infrastructure, government holding, and state-owned enterprise reform. Its main business includes the design, R&D, manufacturing, sales, leasing, and services of tunneling machinery, rail transit equipment, and specialized professional equipment.

In 2025, China Railway Construction Heavy Industry achieved a revenue of 10.045 billion yuan, ranking second in the industry behind Shantui Co., Ltd., which had 14.62 billion yuan. The industry average and median are both 12.33 billion yuan. Main business revenue includes industrial manufacturing at 9.972 billion yuan (99.27%), and other (supplementary) at 72.84 million yuan (0.73%). Net profit in 2025 was 1.483 billion yuan, ranking first in the industry, higher than the second-place Shantui’s 1.214 billion yuan, with the industry average and median at 1.349 billion yuan.

Recent patent applications by China Railway Construction Heavy Industry are as follows:

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