What is the name of the tool used to beat rapeseed?

"Shackle" is the same as "___", an agricultural tool for threshing grain that consists of a long handle and a knocking bar, also known as a "flail". The yoke is made of a long handle and rod, and the rod rotates around a shaft to strike the grain. Playing the chain yoke, also known as "playing the field," is a very popular production practice on the Loess Plateau and in Zhijiang, and is a way of threshing grain.

The chain yoke is usually divided into a light chain yoke and a heavy chain yoke, the light chain yoke includes a chain yoke, a chain hammer and a multi-headed chain hammer, which are small but powerful weapons and very convenient, while the heavy chain yoke is a large two-handed weapon, a bit like an enlarged version of the nunchaku, which is extremely powerful.

The yoke was once the main weapon of the battlefield, used by knights and infantrymen (since the armies of feudal Western Europe were made up of peasants recruited on an ad hoc basis, most of the peasants' weapons were agricultural implements such as rakes and, of course, the yoke).