Sealant dispenser

A sealant dispenser comprising:

• a hollow can including an accommodation chamber defined in the hollow can, an opening defined on a first end of the hollow can, a connection seat arranged on a second end of the hollow can, chemical sealant accommodated in the accommodation chamber, an insert extending from the connection seat, and at least two peripheral ribs formed on a bottom of the insert;
• wherein the sealant dispenser is fixable on an accommodation box in which an air compressor is accommodated, the accommodation box including a fixing hole, a U-shaped protrusion formed on a lower end of the fixing hole, a positioning space defined on the fixing hole above the U-shaped protrusion, and a peripheral column surrounding the fixing hole, the U-shaped protrusion and the positioning space, wherein the hollow can is insertable into the fixing hole of the accommodation box, and the sealant dispenser is rotatable so that the two peripheral ribs of the bottom of the insert are retained with the positioning space of the fixing hole, thus fixing the sealant dispenser on the accommodation box;
• the sealant dispenser further comprising:
• a cap connected with the opening of the hollow can, wherein the cap includes a first tube extending from a top thereof and a second tube extending from a bottom of the cap and communicating with the first tube, wherein the first tube has a first channel defined therein, the second tube has a second channel defined therein, a film received in the second channel configured to stop the first channel of the first tube and the second channel of the second tube;
• a punch element accommodated in the first channel from a mouth of the first tube of the cap and located above the film;
• and
• a drive element rotatable along the cap to force the punch element downward to pierces the film, and an air conduit of the cap in communication with a feeding conduit of the cap causes pressurized gas to be fed into the hollow can from the air compressor via the air conduit, and the chemical fluid is forced by the pressurized gas to flow out of the feeding conduit.