Zhuhai Huayan Wood Industry obtained the patent for the fixed structure of the door core hinge of the armored door, and the product has good strength

According to news from the financial industry on January 1, 2025, information from the State Intellectual Property Office shows that Zhuhai Huayan Wood Industry Co., Ltd. has obtained a project called \”an armored door core hinge fixing structure\” Patent, authorization announcement number CN 222228341 U, application date is January 2024.

The patent summary shows that the utility model relates to an armored door core hinge fixing structure, which includes a frame and a plurality of rivet nuts provided on the frame. The frame is made of galvanized sheet. The rivet nut is directly riveted to the frame from the inside of the frame, and the rivet nut has a smaller size end, and the smaller The size end enters the corresponding fitting hole of the frame. The utility model has the advantages of relatively simple manufacturing process, high production efficiency, and good product strength.

This article comes from the financial world