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This utility model relates to a steaming frame, including a lower frame and an upper frame. A connecting plate is installed between the lower and upper frames. Universal wheels are installed at the four corners of the bottom of the lower frame. Two parallel limiting plates are installed on both sides of the upper surface of the upper frame. Multiple lower and upper brackets are slidably mounted on the outer surfaces of the two limiting plates. Upright plates are installed on both sides of the upper surface of the upper frame, positioned between the two limiting plates. An installation groove is formed on the outer surface of the upright plate, and a scissor-type telescopic frame is installed inside the groove via a drive mechanism. Multiple lower brackets are connected to the scissor-type telescopic frame via connecting shafts. The drive mechanism extends and retracts the scissor-type telescopic frame, which in turn causes multiple upper brackets to rise and fall synchronously. Therefore, when placing a perforated tray on the upper bracket, its height can be lowered, avoiding the need to raise an arm, thus improving operational safety and preventing spillage of the poria cocos, making it easier to use.