Double-rod pressing strip fixer

Abstract

The invention discloses a double-rod pressing strip fixer and belongs to the technical field of improved tree variety breeding instruments. The double-rod pressing strip fixer comprises two rods withwings, pressing plates, gear pads and two nuts, wherein the tips of the rods with wings are of triangular pyramid shape; fifteen prisms with a plurality of wing plates are arranged as the rod bodies on the tips of the rods; dihedral angles formed by the upper slopes of the wing plates and the outer side walls of the wing plates are acute angles; when the rods with wings are vertically placed in air, the dihedral angles formed by the concave side walls of the fifteen prisms on the rod bodies and the inner side walls of the linked wing plates are acute angles; fractures are arranged on the outerside of the wing plates, so that the upper and lower parts at the fractures on the outer side of the wing plates can be separated; screw rods with discs are arranged at the rod tops on the rod bodies; the pressing plates are respectively sleeved on the screw rods at the rod tops through the through holes and the gaps thereof; the gear pads are arranged on the pressing plates and sleeve on the screw rods at the rod tops through the circular holes thereof; the two nuts are fastened on the two screw rods at the rod tops. The fixer is capable of fixing the stock plant branches of the trees on thesoil surface, will not pull up the stock plan branches and can meet the requirement of the pressing strip seedling culturing.

Description

technical field [0001] The invention relates to the technical field of tree breeding equipment, and belongs to a tree layering and seedling raising device, in particular to a double-rod type layering fixer. Background technique [0002] Layering propagation can use the branches of trees to produce new plants, the propagation speed is fast, and the new plants can fully maintain the excellent traits of the mother plant, which is of great significance to the breeding of improved trees. At present, the actual operation of layering propagation is mostly to press the branches of the mother plant with soil on the surface of the land to prevent the branches from bouncing and to fix the branches. But the branches of most trees have a certain degree of elasticity. If there is less soil pressed, the branches of the mother plant cannot be pressed; if there is too much soil, it will affect the germination of buds on the branches; Soil is also difficult. The whole layering operation p...

AI Technical Summary

Problems solved by technology

But the branches of most trees have a certain degree of elasticity. If there is less soil pressed, the branches of the mother plant cannot be pressed; if there is too much soil, it will affect the germination of buds on the branches; Soil is also difficult

The entire beading operation process is laborious and time-consuming

At present, some people use tree branches to cut into stakes to fix the branches of the mother plant. The actual operation requires suitable branches as materials, and the branches need to be cut into stakes one by one. The whole operation process is also laborious and time-consuming, especially for fixing the mother plant with stakes The effect of the branches is poor: the stakes will be pulled up by the branches of the mother plant in rainy days; the stakes cut from fresh branches will be pulled up when the wood dries and shrinks; If the skin rots, the stake will also be pulled up; because the stake inserted into the soil is fixed by the friction between its vertical surface and the soil, the force of this friction is limited and affected by many factors will decrease

Due to the problem of fixing the branches of the mother plant, the current layering propagation of trees is limited to a small area, and it is impossible to reproduce and raise seedlings in large quantities

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