Nantong Sutong Civil Defense has obtained a patent for civil defense doors with fast locking function, effectively improving the closing efficiency and overall safety performance of civil defense doors.

Finance Industry reported on February 13, 2025 that the information of the National Knowledge and Rights Bureau showed that Nantong Sutong Civil Defense Protection Equipment Co., Ltd. obtained a civil defense door with a fast locking function. Patent, Authorization Announcement No. CN 222436217 U, Application date is March 2024.

The patent summary shows that the utility model discloses a human defense door with a quick locking function, including the left door and the right door, and a positioning mechanism is installed on one side of the left door and the right door. The locking mechanism is set on one side of the positioning mechanism on the left and right doors; the new practical structure is simple and has a reasonable design. After the two doors are closed, the position of the positioning rod is changed by mutual contact, and the control circle is then placed. Left door 1 The upper and lower end positioning and cladding are fixed, and the entire process can be touched after the left door and right door are in place. There is no need for human intervention and responds quickly, effectively improving the closing efficiency of the human defense door and the overall civil defense project. Safety performance, and at the same time, the active locking effect after the right door contacts the left door, the overall structure is simple to lock quickly, and the later opening is convenient to operate. Further improve the locking efficiency of the human defense door and the overall safety of the civil defense project.

Tianyan Check data shows that Nantong Sutong People\’s Defense Protection Equipment Co., Ltd., established in 2004, is located in Nantong City. It is an enterprise mainly engaged in general equipment manufacturing. The enterprise registered capital is RMB 22 million and the actual capital is RMB 22 million. Through Tianyan Check data analysis, Nantong Sutong Civil Defense Protection Equipment Co., Ltd. has invested in a total of 1 enterprise with foreign investment, participated in 37 bidding projects, 1 trademark information in terms of intellectual property rights, and 63 patent information. In addition, the company also has administrative licenses. 6.

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