风箱是农村安装在炉灶上用来鼓风的一种装置,由箱体、手柄、与手柄相连的薄木板和4个活门(前、后各2个)组成,风箱下端有出风口.当向外拉动手柄时,风箱背后的活门打开,吸进空气并从风箱下端的出风口吹出;当向里推动手柄时,风箱前部的活门打开,吸进空气并从风箱下端的出风口吹出.这样来回推拉,就可以不断地给炉 Bellows is a device installed on the stove in rural areas for blasting, and consists of a box body, a handle, a thin wooden board connected to the handle, and four valves (two in front and two in the rear). The lower end of the bellows has an air outlet. When the handle is pulled outside, the flap behind the bellows is opened, air is sucked in and blown out from the air outlet at the lower end of the bellows, and when the handle is pushed inwardly, the flap at the front of the bellows is opened, sucked in and blown out from the air outlet at the lower end of the bellows. Push and pull back and forth, you can continue to give the furnace