Tonghua Iron and Steel obtained a patent for a device for opening and closing train compartment doors, which can quickly activate and reduce labor intensity when opening and closing train compartment doors.

According to news from the financial industry on January 18, 2025, information from the State Intellectual Property Office shows that Tonghua Iron and Steel Co., Ltd. has obtained a patent called \”Device for opening and closing train compartment doors\”, the authorization announcement number is CN 222350482 U, application date is June 2024.

The patent abstract shows that the utility model relates to the technical field of railway transportation equipment, that is, a device for opening and closing train compartment doors. It includes a handle, the front end of the handle has an upwardly convex door bolt stop, the front part of the handle 1 is welded with a downwardly convex rectangular iron plate, and there are at least two hook pin adjustment holes spaced apart on the rectangular iron plate. The adjustment hole is connected with a movable hook, and the front end of the movable hook has a hook head. A special tool is provided to quickly open and close the train door and reduce labor intensity. Simple to make and easy to operate.

Tianyancha data shows that Tonghua Iron and Steel Co., Ltd. was established in 2006 and is located in Tonghua City. It is an enterprise mainly engaged in ferrous metal smelting and rolling processing industries. The registered capital of the enterprise is RMB 7,694,460,047, and the paid-in capital is RMB 7,694,460,047. Through Tianyancha big data analysis, Tonghua Iron and Steel Co., Ltd. has invested in 19 companies and participated in 1,844 bidding projects. In terms of intellectual property rights, it has 1 piece of trademark information and 213 pieces of patent information. In addition, the company also has 63 administrative licenses.

This article comes from the financial world