US 12,492,028 B1
Vacuum pumping device
Hui Wu, Xinyang (CN)
Filed by Hui Wu, Xinyang (CN)
Filed on May 21, 2025, as Appl. No. 19/214,226.
Int. Cl. B65B 31/00 (2006.01)
CPC B65B 31/00 (2013.01) 8 Claims
OG exemplary drawing
 
1. A vacuum pumping device, comprising:
a negative pressure generating device, wherein the negative pressure generating device is provided with a first negative pressure suction port and a first connecting structure;
a Mason bottle adapter, the Mason bottle adapter is provided with a first Mason bottle docking chamber and a second connection structure, the Mason bottle adapter is detachably connected to the first connection structure through the second connection structure, and an airway connection is formed between the first negative pressure suction port and the first Mason bottle docking chamber;
wherein the Mason bottle adapter comprises a docking panel, a first side wall provided around an outer circumference of the docking panel on a first side of the docking panel, and a first sealing ring provided on an inner side of the first side wall,
wherein the docking panel, the first side wall, and the first sealing ring are surrounded to form the first Mason bottle docking chamber;
the docking panel is provided with a second negative pressure suction port that is communicated to the first Mason bottle docking chamber;
the first connection structure comprises a clamp slot provided on an outer wall of the first negative pressure suction port;
the second connection structure comprises a clamp block provided on an inner wall of the second negative pressure suction port;
the Mason bottle adapter is connected to the negative pressure generating device by clamping into the clamp slot through the clamp block;
wherein the Mason bottle adapter further comprises a second side wall provided around an outer circumference of the docking panel on a second side of the docking panel, and a second sealing ring provided in an inner side of the second side wall;
the docking panel, the second side wall, and the second sealing ring are surrounded to form a second Mason bottle docking chamber;
an inner diameter of the second sealing ring is different from that of the first sealing ring;
an outer wall diameter of the first negative pressure suction port is smaller than inner diameters of the first sealing ring and the second sealing ring.