Airtightness detection device for container with opening part being inner conical surface

The utility model discloses an air tightness detection device for a container with an inner conical surface opening. The air tightness detection device comprises a rack, a plurality of cylinder supports, a positioning seat, a gland and an air control pipeline, the air cylinder support comprises a flange, a stand column, a supporting plate and two square pipe beams. The stand column and the flange are coaxially welded, the flange is fixedly installed on the rack, and the square tube beam is perpendicular to the stand column and installed on the top of the stand column. A U-shaped cylinder seat is mounted at the cantilever end of the square tube beam; a cylinder is fixedly mounted in the cylinder seat; a gland is installed at the end of a piston rod of each air cylinder, and a positioning seat is fixedly installed under each air cylinder on the rack. The airtight detection device for the container with the inner conical surface opening is simple and compact in structure, convenient and rapid to assemble and dis