The utility model discloses a fire cover and contain its kitchen range, including fire cover body and
combustion mesh, the
gas mixing chamber has in fire cover body, the upper surface of lid body has the first recess, and the
combustion mesh forms the buffer chamber with the first recess, and the side of buffer chamber away from the
combustion mesh has a plurality of through -hole, and the through -hole links the
gas mixing chamber and buffer chamber, wherein, the cross section size of first recess along the gas -exhaust direction of through -hole is along bigger and bigger, and the setting of a plurality of through -hole can carry out certain resistance effect to
mixed gas through the wall thickness between through -hole, and then reach the effect of reducing the speed of
mixed gas into buffer chamber, and the above -mentioned effect can prevent
mixed gas from overflowing fast under the condition of secondary air deficiency or no steady
flame structure, causes the
flame -leaving phenomenon, through the cross section size of first recess along the gas -exhaust direction of through -hole is bigger and bigger, can make mixed gas reduce flowing speed after entering buffer chamber, further prevent the
flame -leaving phenomenon from generating.