According to news from the financial industry on November 18, 2024, information from the State Intellectual Property Office shows that Sichuan Hongwei Special Door Industry Co., Ltd. has obtained a patent called \”a sliding opening and closing civil defense door\” Patent, authorization announcement number CN 222009982 U, application date is January 2024.
The patent abstract shows that the utility model discloses a civil air defense door that can be opened and closed by translation, which relates to the technical field of civil air defense doors and includes a door body. An automatic translation mechanism is fixedly installed on the top of the door body. A moving pulley mechanism is provided in the bottom of the door body, and a pulley is installed to rotate at the bottom of the door body. The civil air defense door with translation opening and closing of the utility model is a horizontal movement opening and closing, which occupies a small space. The civil air defense door with translation opening and closing has an active closing function. The motor drives the gear set to rotate, thereby driving the door body to move horizontally through the tooth slots. , a pulley is installed in conjunction with the bottom rotation of the door body to make the door body move more smoothly and reduce the The driving power required by the motor, when automatic closing cannot be controlled under special circumstances, the door body can be closed manually through the movable pulley mechanism, the connecting mechanism and the passive translation mechanism, so that the translation opening and closing civil air defense door has a double insurance mechanism to open and close. It has greater practicality and compatibility, and can achieve manual shutdown in emergencies.
This article comes from the financial world
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