According to news from the financial industry on November 14, 2024, information from the State Intellectual Property Office shows that Foshan Leidun Aluminum Products Co., Ltd. has obtained a patent called \”A welding-free shutter door\” and authorized Announcement number CN 221990228 U, application date is December 2023.
The patent abstract shows that the present utility model provides a welding-free shutter door, which relates to the technical field of shutter doors and includes a frame structure. Side pillar pad structures are provided on the inner walls of the two frame structures. Several louver structures are arranged between the four side pillar pad structures, and several bolt bodies are arranged between the frame structure, the side pillar pad structures and the louver structure. Two of the frame structures outside Both are equipped with sealing plates. The frame structure includes a frame body. A first through-slot is provided inside the frame body. Two supporting connectors are provided on the inside of the frame body. The whole structure is composed of a frame structure and side pillar pads. The structure is composed of the louver structure, which is connected by tightening screws to achieve the effect of no welding. The assembly method is more convenient and faster, the production efficiency is higher, and the internal connection of the whole body is stronger and more durable.
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