Inverted trapezoidal girdling tool bit

Abstract

The invention provides an inverted trapezoidal girdling tool bit. The tool bit comprises a connecting handle, two waists of a trapezoid and a short bottom edge of the trapezoid, wherein a threaded hole is formed in the connecting handle; the two waists of the trapezoid are inclined blades, and have ringing and girdling functions; and the short bottom edge of the trapezoid is a horizontal blade, and has a girdling function. According to the inverted trapezoidal girdling tool bit, the waists are inclined blades, the moving direction of the inclined blades are obliquely arranged for girdling thebast part of a fruit tree, and the included angle between the outer surface of the inclined blades and the cut bast part is less than 90 degrees, the moving resistance is small; and the two waists ofthe inverted trapezoid are inclined bladesthe bast part cannot be torn, the girdling opening is downward inclined, and rainwater are not preserved.

Description

technical field [0001] The invention relates to an inverted trapezoidal girdling cutter head, which belongs to the field of machinery. Background technique [0002] Girdling of fruit trees is a key technology. Girdling should be carried out at the early stage of flowering. At this time, the fruit growth period of girdling is long and well developed. , but the fruit setting rate is low, girdling at the end flowering stage, the fruit is small, and the quality is reduced; Quality is closely related. The quality of girdling knives mainly includes material, heat treatment, blade shape, blade shape, etc. Bad blades can easily lead to: ①Tearing the bark of fruit trees, and the girdling mouth is too wide, destroying the crown and root system Although girdling can increase the fruit setting rate, but at the price of excessively plundering root nutrients in exchange for fruit, it will inevitably cause physiological dysfunction of the fruit tree and damage the tree body. ② Too deep gi...

AI Technical Summary

Problems solved by technology

[0002] Girdling of fruit trees is a key technology. Girdling should be carried out at the early stage of flowering. At this time, the fruit growth period of girdling is long and well developed. , but the fruit setting rate is low, girdling at the end flowering stage, the fruit is small, and the quality is reduced; Quality is closely related. The quality of girdling knives mainly includes material, heat treatment, blade shape, blade shape, etc. Bad blades can easily lead to: ①Tearing the bark of fruit trees, and the girdling mouth is too wide, destroying the crown and root system Although girdling can increase the fruit setting rate, but at the price of excessively plundering root nutrients in exchange for fruit, it will inevitably cause physiological dysfunction of the fruit tree and damage the tree body. ② Too deep girdling will destroy the cambium and even damage the xylem , the phloem of the fruit tree cannot be healed, the bark is rotten and dead, and the nutrient transmission is interrupted, causing the tree to die. ③The width of the girdling opening is too small, or the girdling depth is not enough. When the organic nutrition stops growing, the yellow leaf period of the leaves lasts too long, even after germination in the next year, the leaves are still yellow, the leaves become thin, involuted, and cannot grow normally. More than 30% of the trees only bloom but do not bear fruit, and even appear small year phenomenon

[0003] Generally, the common girdling cutter heads in China include semicircular sickle type, single-tooth saw blade type, square shape, hook shape, single-edged straight knife type, and double-edged straight knife type. The function of girdling, because the structure and shape of the girdling cutter head is easy to tear the bark, resulting in too wide girdling opening, damage to the root system, a strong tree becomes a weak tree, and the cambium is damaged during single-tooth saw blade girdling, and even Damage to the xylem, the saw cut cannot heal, resulting in dead trees, the existing girdling tools, it is difficult to guarantee the quality of girdling, if the girdling requirements cannot be met, the secondary girdling will affect the longitudinal division of fruit cells, and the quality of the fruit is too small decline

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