Bottom Structure of Container

Abstract

A bottom structure of a container comprises a bottom frame including two parallel bottom side rails and two bottom end rails transversally connected to the ends of the two bottom side rails, and one or more wood floors and one or more steel floors extending along the length direction of the bottom side rails, which are alternately arranged in parallel with the bottom side rails and fixed between the two bottom end rails, in which an upper surface of the steel floor is flush with an upper surface of the wood floor. The bottom structure in the present invention has the advantages of saving wood materials and having excellent rigidity.

1 . A bottom structure of a container, comprising:
 a bottom frame including two parallel bottom side rails and two bottom end rails transversally connected to the ends of the two bottom side rails; and   one or more wood floors and one or more steel floors extending along the length direction of the bottom side rail, which are alternately arranged in parallel with the bottom side rails and fixed between the two bottom end rails;   wherein an upper surface of the steel floor is flush with an upper surface of the wood floor.   
   
   
       2 . The bottom structure of the container according to  claim 1 , the steel floor may be an element configured in such a way that a middle portion thereof is bulged to form a flat top acting as a steel floor surface; and
 the bottom structure further comprises bottom cross members provided between the two sides of the element and the two bottom side rails, wherein the wood floor is fixed on an upper surface of the bottom cross member, and the upper surface of the bottom cross member is lower than the top surface of the steel floor in such a way that a height difference the upper surface of the bottom cross member and the steel floor surface matches a thickness of the wood floor.   
   
   
       3 . The bottom structure of the container according to  claim 2 , wherein the element has a ‘Ω’-shaped cross section. 
   
   
       4 . The bottom structure of the container according to  claim 2 , wherein a reinforcing board is provided in a space formed by the bulged portion of the element. 
   
   
       5 . The bottom structure of the container according to  claim 3 , wherein a reinforcing board is provided in a space formed by the bulged portion of the element. 
   
   
       6 . The bottom structure of the container according to  claim 4 , wherein, the reinforcing board has a cross section in any shape selected from ‘L’, ‘I’, ‘C’, and ‘U’. 
   
   
       7 . The bottom structure of the container according to  claim 5 , wherein the reinforcing board has a cross section in any shape selected from ‘L’, ‘I’, ‘C’, and ‘U’. 
   
   
       8 . The bottom structure of the container according to  claim 2 , wherein the bottom cross member has a cross section in any shape selected from a group of ‘L’, ‘I’, ‘C’, and ‘U’. 
   
   
       9 . The bottom structure of the container according to  claim 1 , wherein one steel floor is arranged at a middle portion of the bottom frame and two wood floors are arranged at both sides of the steel floor. 
   
   
       10 . The bottom structure of the container according to  claim 1 , wherein one wood floor is arranged at a middle portion of the bottom frame and two steel floors are arranged at both sides of the wood floor.