Airtightess detection apparatus for vehicle natural gas bottle

An airtightess detection apparatus for a vehicle natural gas bottle comprises a water tank, a baffle plate, a gas bottle support and a cylinder fixing support. The baffle plate is arranged in front of the water tank; the cylinder fixing support is connected over the water tank in a welding manner; a first cylinder is arranged over the cylinder fixing support; a second cylinder is arranged over the gas bottle support; a first cylinder piston is fixedly connected with the gas bottle support; a second cylinder piston is connected with a gas bottle fixing plate; and the gas bottle support is arranged in the cylinder fixing support. According to the airtightess detection apparatus, the principle is simple, an airtightness detection inlet is connected with a detection streamline, a gas bottle is directly pushed into the airtightess detection apparatus for inflation detection, whole course automation detection is realized, the baffle plate arranged in front of the water tank guarantees the safety of the detection pe