Inflator with inflation and deflation effects

An inflator with inflation and deflation effects, comprising:

• at least one cylinder body;
• at least one piston fitted in the cylinder body and airtight engaged with inner wall face of the cylinder body, at least one compression room being formed in the cylinder body between the piston and a front end of the cylinder body;
• a piston rod having an internal gas passage, a front end of the piston rod extending through a rear end of the cylinder body into the cylinder body to connect with the piston for driving the piston, a front end of the gas passage communicating with the compression room;
• a handle fixedly connected with a rear end of the piston rod for a user to hold;
• a gas passage connector disposed at the handle end of the inflator, a rear end of the gas passage via the gas passage connector communicating with outer side;
• a cylinder body connector disposed at the cylinder body end of the inflator, the compression room via the cylinder body connector communicating with outer side;
• an intake one-way valve disposed between the cylinder body connector and the compression room, the intake one-way valve only permitting external gas to flow from the cylinder body connector into the compression room;
• and
• an exhaust one-way valve disposed between the gas passage connector and the gas passage, the exhaust one-way valve only permitting the gas in the compression room to flow from the compression room into the gas passage and then flow to outer side.

An inflator with inflation and deflation effects, comprising:

• at least one cylinder body;
• at least one piston fitted in the cylinder body, at least one compression room being formed in the cylinder body between the piston and a front end of the cylinder body;
• a piston rod having an internal gas passage, a front end of the piston rod extending through a rear end of the cylinder body into the cylinder body to connect with the piston for driving the piston, a front end of the gas passage communicating with the compression room;
• a handle fixedly connected with a rear end of the piston rod for a user to hold;
• a cylinder body connector disposed at the cylinder body end of the inflator, the compression room via the cylinder body connector communicating with outer side, a first gas flow way being formed between the outer side and the compression room;
• a gas passage connector disposed at the handle end of the inflator, the rear end of the gas passage via the gas passage connector communicating with outer side, a second gas flow way being formed between the compression room, the gas passage and the outer side;
• a first one-way valve disposed in the first gas flow way, whereby the gas in the first gas way can only one-way flow;
• and
• a second one-way valve disposed in the second gas flow way, whereby the gas in the second gas way can only one-way flow, along the longitude of the inflator, the two one-way valves only permitting the gas to one-way flow within the two gas flow ways in the same direction.