Ningbo Zhanlun Precision has obtained a patent for a door lock. The trigger can quickly open and close the door in an emergency.

According to news from the financial industry on January 15, 2025, information from the State Intellectual Property Office shows that Ningbo Zhanlun Precision Machinery Co., Ltd. has obtained a patent called \”a door lock\”, and the authorization announcement number is CN 222333491 U, application date is May 2024.

The patent abstract shows that the utility model discloses a door lock, which includes: a lock body, a lock tongue slidably provided in the lock body, and the lock tongue can extend out of the lock body or retreat into the lock body. The lock body is locked or unlocked; the transmission member is provided with a guide groove, and the guide groove has a first guide section and a second guide section connected to each other. The connection between a guide section and the second guide section has an initial position; a trigger piece is rotatably connected to the lock body, a guide post is provided on the trigger piece, and the trigger piece is rotated to drive the lock body. The guide post slides along the first guide section or the second guide section from the initial position to drive the lock tongue to extend or retract to the lock body. In the utility model, the trigger member can be unlocked or locked by rotating in any direction, and can quickly open or close the door in an emergency.

Tianyancha data shows that Ningbo Zhanlun Precision Machinery Co., Ltd. was established in 2011 and is located in Ningbo City. It is an enterprise mainly engaged in general equipment manufacturing. The registered capital of the enterprise is RMB 10 million, and the paid-in capital is RMB 10 million. Through Tianyancha big data analysis, Ningbo Zhanlun Precision Machinery Co., Ltd. has participated in one bidding project and has 33 pieces of patent information. In addition, the company also has 4 administrative licenses.

This article comes from the financial world