Baking Oven Structure

Abstract

An improved baking oven structure has a main body comprising an external drum and an internal drum. The external drum is connected to an end portion of the internal drum. A gas chamber is formed between the external drum and the internal drum. The external drum is provided with an air inlet and at least an exhaust outlet communicating with the gas chamber. A baking chamber is disposed in the internal drum. The baking chamber has an opening. The opening is opened or closed by a valve. Food can be placed on an article placing rack in the baking chamber. A heat source can enter into the gas chamber through the air inlet of the external drum and can be exhausted from the exhaust outlet, thereby forming the structure.

1 . An improved baking oven structure having a main body showing a drum shape and lain down while placing the main body, the main body composed of an external drum and an internal drum, a gas chamber between the external drum and the internal drum;
 at least one air inlet disposed at a bottom of the external drum, the air inlets being downward while placing the main body, a top of the external drum having at least an exhaust outlet, the air inlets and the exhaust outlet communicating with the gas chamber;   the internal drum having a baking chamber, at least an article placing rack disposed in the baking chamber, at least one end of two ends of the baking chamber in the main body being an opening end, a valve disposed to the opening end of the main body.   
     
     
         2 . The improved baking oven structure as recited in  claim 1 , wherein a bottom of the main body is placed on an oven rack having a fire source, and the oven rack has a shape corresponding to a bottom of the external drum, the air inlet is surrounded by the oven rack when the main body is placed on the oven rack, and the oven rack has an opening for placing a fire source. 
     
     
         3 . The improved baking oven structure as recited in  claim 2 , wherein two ends of the baking chamber in the main body have an opening, and each opening is equipped with a valve corresponding to the main body. 
     
     
         4 . The improved baking oven structure as recited in  claim 2 , wherein the external drum has at least one chimney at an exhaust outlet. 
     
     
         5 . The improved baking oven structure as recited in  claim 4 , wherein a top of the internal drum has at least an exhaust pipe protruding the external drum, and a top of the exhaust pipe has at least one pressure relief port, and a sealing cap is provided with a flexible member to push toward the pressure relief port, and the sealing cap seals the pressure relief port. 
     
     
         6 . The improved baking oven structure as recited in  claim 5 , wherein at least an oil dropping basin is disposed under a bottom of the article placing rack in the baking chamber, and a bottom of the oil dropping basin is placed in the baking chamber by corresponding to an inner shape of a bottom of the internal drum. 
     
     
         7 . The improved baking oven structure as recited in  claim 6 , wherein at least one sliding rail is respectively at two corresponding sides of the baking chamber of the internal drum, and the article placing rack is slidably disposed at two sliding rails. 
     
     
         8 . The improved baking oven structure as recited in  claim 3 , wherein the external drum has at least one chimney at an exhaust outlet. 
     
     
         9 . The improved baking oven structure as recited in  claim 8 , wherein a top of the internal drum has an exhaust pipe protruding the external drum, and a top of the exhaust pipe has a pressure relief port, and a sealing cap is provided with a flexible member to push toward the pressure relief port, and the sealing cap seals the pressure relief port, and the external drum has at least one chimney at an exhaust outlet. 
     
     
         10 . The improved baking oven structure as recited in  claim 9 , wherein an oil dropping basin is disposed under a bottom of the article placing rack in the baking chamber.