The Eighth Engineering Bureau of China Construction Engineering Bureau applied for a patent for the invisible door structure and its use method for stone curtain walls, which improves the visual effect.

According to news from the financial industry on January 17, 2025, information from the State Intellectual Property Office showed that China Construction Eighth Engineering Bureau Co., Ltd. applied for a project called \”Invisible door structure for stone curtain walls and its \”Usage Method\” patent, publication number CN 119308580 A, application date is November 2024.

The patent abstract shows that the invention discloses an invisible door structure for a stone curtain wall and a method of using the same. An installation space for the installation of the invisible door structure is formed between the first stone curtain wall and the second stone curtain wall. , the invisible door structure includes: a keel frame, the keel frame is arranged in the installation space and is hingedly connected to the first stone curtain wall on one side; a honeycomb aluminum plate, the honeycomb aluminum plate is connected to the opposite outside of the keel frame ;The first stone slab, the The first stone plate is connected to the side of the honeycomb aluminum plate facing away from the keel frame; a limiting rod used to limit the keel frame, and the limiting rod is connected to the keel frame in a flippable manner. On the other side, one end of the limiting rod is connected with a hook, and the other end extends out of the gap between the stone plate and the second stone curtain wall to form a lever. The second stone curtain wall is connected with a hook for the The hook-mounted connecting buckle improves the visual effect by arranging the invisible door structure.

Tianyancha data shows that China Construction Eighth Engineering Bureau Co., Ltd. was established in 1998 and is located in Shanghai. It is an enterprise mainly engaged in the housing construction industry. The registered capital of the enterprise is RMB 15,218 million, and the paid-in capital is RMB 15,218 million. Through Tianyancha big data analysis, China Construction Eighth Engineering Bureau Co., Ltd. has invested in a total of 259 companies, participated in 5,000 bidding projects, and has 106 pieces of trademark information and 5,000 pieces of patent information in terms of intellectual property rights. In addition, the company also has administrative licenses 7568.

This article comes from the financial world