This utility model relates to the field of agricultural planting technology, specifically an adjustable
plant spacing precision seed metering device for
broad beans. It includes a frame, which comprises a pair of movable frames, a
fixed frame, and a pair of side seats. Several seed metering mechanisms are fixed within the
fixed frame. Each seed metering mechanism includes a storage hopper and a rotating column. A
plant spacing adjustment mechanism is connected to the bottom of each seed metering mechanism. The
plant spacing adjustment mechanism includes a rotating sleeve, an inner sleeve, an outer sleeve, a bottom tube, and a base. This adjustable plant spacing precision seed metering device for
broad beans, through its plant spacing adjustment mechanism, allows the base of the plant spacing adjustment mechanism to move axially along a
square rod, and the outer sleeve to move axially along the inner sleeve. By adjusting the position of the base on the
square rod and the relative position of the outer sleeve and the inner sleeve, the spacing between the seed metering mechanisms corresponding to the
sowing positions can be changed, achieving flexible adjustment of the
sowing row spacing to adapt to the planting needs of different broad bean varieties.