Motor shell gas tightness detection device

The utility model relates to a motor shell gas tightness detection device, including rack, cylinder, slide and detect support and cask, the cask sets up and detects the lower extreme of support in sliding, and the rack includes and casemate carriage frame and casing slide rail way is provided with the backup pad on the casemate carriage frame, and the cylinder passes the casemate carriage frame and detects that the support is fixed to meet with sliding, and slide and detect the support including coasting flat board, end cover flat board and coast the axle, the second cylinder dull and stereotyped fixed meet and meet with the end cover flat board through coasting the axle with coasting, that coasts the axle still is fixed with a third backup pad bottom, third backup pad lower extreme be the cask. Adopting the motor shell gas tightness detection device of this kind of structure, detecting the container of gas tightness as motor shell through the design cask, fill with water and be convenient for observe motor s