According to news from the financial industry on September 27, 2024, information from the State Intellectual Property Office shows that Wuxi Veken Ventilation Machinery Co., Ltd. has obtained a patent called \”Pneumatic Cylinder Lifting Door Structure\”, and the authorization announcement No. CN 221761700 U, application date is January 2024.
The patent abstract shows that the utility model discloses a pneumatic cylinder lifting door structure, which includes a pneumatic cylinder, a connecting seat, a lifting door, and a photoelectric detection device. The pneumatic cylinder is installed on the top of the airtight air cover. The output end is connected to the lifting door through a connecting seat, and photoelectric detection devices are installed on both sides of the lifting door; the pneumatic cylinder is divided into an upper space and a lower space through a movable partition plate. The pressure cylinder is connected to an upper vent pipe and a lower vent pipe that are connected to the upper and lower interior spaces respectively. The upper and lower vent pipes are connected to the compressed air pipe through a solenoid valve, and the solenoid valve is connected to a speed regulating valve; the connecting seat is connected to the pneumatic cylinder and the lifting door respectively. The connection is detachable, and the connecting base and the lifting door are respectively provided with a first guide mechanism and a second guide mechanism for sliding cooperation with the airtight air cover, and a lower seal is installed at the bottom of the lifting door. The lifting door of this utility model is lifted by a pneumatic cylinder, which has low investment and use costs, adjustable lifting speed, smooth and safe lifting, flexible use and strong practicability.
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