Spring-type vending machine, cargo outlet device thereof and cargo blocking preventing mechanism

The invention provides a spring-type vending machine, a cargo outlet device thereof and a cargo blocking preventing mechanism. Cargo blocking can be prevented in the cargo vending process, and continuous and stable vending of cargoes is achieved. The cargo blocking preventing mechanism is used for the cargo outlet device of the spring-type vending machine. The cargo outlet device comprises material channels with cargo outlets in the front ends and cargo outlet springs extending along the material channels. Cargo containing space is formed between adjacent rings of the cargo outlet springs. The cargo blocking preventing mechanism comprises a vibration piece and a power source for driving the vibration piece to vibrate. The vibration piece is arranged at the position corresponding to the corresponding cargo outlet spring and can be in contact with the corresponding cargo outlet spring to drive the cargo outlet spring to vibrate to vibrate the cargoes blocked at the front end of the cargo outlet spring down. The vibration piece of the cargo blocking preventing mechanism can vibrate the cargoes blocked at the front end of the corresponding cargo outlet spring down by driving the cargo outlet spring to vibrate so that cargo blocking can be prevented; meanwhile, vending of the next cargoes can not be influenced, and continuous and stable vending of the cargoes can be achieved.