Vehicle Body Structure and Rail Train with Vehicle Body

Abstract

A vehicle body structure and a rail train with the vehicle body. The vehicle body structure includes a vehicle body, an air duct and a maintenance portion, wherein the air duct is provided at the bottom of the vehicle body, the air duct has a maintenance port, the maintenance portion is connected to the air duct and located at the maintenance port, and the maintenance portion has an opening position for opening the maintenance port and a closing position for closing the maintenance port. By operating a maintenance portion on an air duct at the bottom of a vehicle body, a maintenance port of the air duct is at an opened or closing position, in order to detect or repair the interior of the air duct, thus prolonging the life of the air duct of the vehicle body structure and improving the reliability.

What is claimed is: 
     
         1 . A vehicle body structure, comprising:
 a vehicle body;   an air duct, the air duct being provided at a bottom of the vehicle body, and the air duct having a maintenance port; and   a maintenance portion, the maintenance portion being connected with the air duct and located at the maintenance port, and the maintenance portion having an opening position for opening the maintenance port and a closing position for closing the maintenance port.   
     
     
         2 . The vehicle body structure as claimed in  claim 1 , wherein the air duct comprises:
 a main air duct, the main air duct being provided along a length direction of the vehicle body, and an air supply opening being provided in a middle of the main air duct; and   a branch air duct, the branch air duct being provided along a width direction of the vehicle body, a first end of the branch air duct being communicated with the main air duct, and a second end of the branch air duct having an air outlet for communicating with an interior of the vehicle body.   
     
     
         3 . The vehicle body structure as claimed in  claim 2 , wherein the main air duct and/or the branch air duct are/is provided with the maintenance portion. 
     
     
         4 . The vehicle body structure as claimed in  claim 2 , further comprising:
 a guide portion, the guide portion being provided in the air duct to guide or distribute airflow in the air duct.   
     
     
         5 . The vehicle body structure as claimed in  claim 4 , wherein the guide portion comprises:
 a first guide plate, the first guide plate being provided at the air supply opening and located in the air duct, and/or the first guide plate being provided at a joint between the main air duct and the branch air duct and located in the air duct,   wherein, the first guide plate being a herringbone guide plate.   
     
     
         6 . The vehicle body structure as claimed in  claim 4 , wherein a second end, provided with the air outlet, of the branch air duct is an arc-shaped structure, and the guide portion comprises:
 a second guide plate, the second guide plate being provided in the second end of the branch air duct to divide the second end of the branch air duct into at least two independent air outlet ducts.   
     
     
         7 . The vehicle body structure as claimed in  claim 2 , wherein the air supply opening and/or the air outlet are/is provided with a flange, a seal ring being provided in the flange. 
     
     
         8 . The vehicle body structure as claimed in  claim 2 , wherein there are a plurality of branch air ducts, the plurality of branch air ducts being provided at intervals along the length direction of the vehicle body. 
     
     
         9 . The vehicle body structure as claimed in  claim 8 , wherein the plurality of branch air ducts are symmetrically provided on two sides of the main air duct. 
     
     
         10 . The vehicle body structure as claimed in  claim 2 , wherein the air duct comprises:
 a return air duct, a first end of the return air duct being communicated with the main air duct, and a second end of the return air duct being communicated with the interior of the vehicle body.   
     
     
         11 . The vehicle body structure as claimed in  claim 1 , wherein the maintenance portion is a maintenance cover plate, the maintenance cover plate being detachably provided at the maintenance port. 
     
     
         12 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 1 . 
     
     
         13 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 2 . 
     
     
         14 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 3 . 
     
     
         15 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 4 . 
     
     
         16 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 5 . 
     
     
         17 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 6 . 
     
     
         18 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 7 . 
     
     
         19 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 8 . 
     
     
         20 . A rail train, comprising a vehicle body structure, wherein the vehicle body structure is the vehicle body structure as claimed in  claim 9 .