Patent ID: 9682715
Date: 2017-06-20
CPC Classifications: B61D

Claim:
1. A carriage body for a multiple unit train, comprising: a chassis and a power system module mounted in a suspended manner below the chassis; wherein the chassis is provided with an access opening for facilitating overhaul of the power system module, and a floorboard of a passenger compartment covers a top surface of the chassis and surrounds the access opening, and further comprising an access door for blocking the access opening, wherein the access door comprises a top panel, a reinforcement panel and a sound-insulation panel for sound-proofing, provided successively from top to bottom, the top panel, the reinforcement panel and the sound-insulation panel are fixedly connected as one piece; the periphery of the top panel is engaged with the floorboard of the passenger compartment; and the top panel is detachably or fixedly connected to the floorboard of the passenger compartment and/or the chassis.