Patent ID: 8733270

Claim:
An inflation machine comprising a casing, an inflation mechanism, which is received in the casing and is coupled to and driven by a driving device, and a pressure indication device, which is mounted inside the casing, wherein the casing comprises an observation window, wherein the inflation mechanism comprises an air compartment, the air compartment being provided with at least two outlet openings, which are respectively connected to a first conveyance tube and a second conveyance tube, the first conveyance tube being connected to the pressure indication device, the second conveyance tube being adapted to connect to an object to be inflated, wherein the pressure indication device comprises a hollow tubular body, the hollow tubular body having two ends that are respectively provided with a protection cover and an inlet joint, the protection cover forming a through hole, the inlet joint forming an inlet opening extending outside the hollow tubular body and connected to the first conveyance tube, the hollow tubular body receiving therein a push block between the protection cover and the inlet joint, the push block being connected to a strip-like plate, which has an end extending beyond and exposed outside the through hole of the protection cover, the hollow tubular body receiving therein an elastic element between the protection cover and the push block, the push block and the strip-like plate being movable together along a moving path, and wherein a stationary scale bar is mounted inside the casing at a location outside the pressure indication device and corresponding to the observation window, the scale bar being distant from the inflation mechanism.