Hi, i am planning to take a train from Chengdu to Chongqing. Which trains i should take? Also, i have 2 big luggage, and i want to travel like on planes with the luggage checked in. Are there such services at Chengdu? Can i check in the luggage on the day of departure? What are the security checks on the checked baggage?

I have been to those train stations and remember that we have to get all baggage screened at the entrances. Can i get any help at that point? Too many people at the entrance with small carry-ons, i do not want to scramble at the entrance as well.