Artificial auxiliary handheld litchi tree girdling device achieving variable-diameter branch clamping through spring plates

Abstract

The invention provides a manually assisted hand-held spring plate variable diameter branch clamping litchi girdler, which includes a handle, a spring, a rotating shaft, a spring plate, and a fixed circle. A spring is fixedly installed on the handle. The spring is a tension spring. The board is clamped on the lychee branch to prevent it from turning with the ring cutter. The handle is divided into two parts. The fixed circle is installed on the handle. The two parts of the fixed circle are buckled together to form a complete circle. The handle opens and closes. The fixed circle and the spring plate also open and close accordingly. There is a groove on the fixed circle, and the roller is embedded in the groove and rolls in the groove. The connecting rod runs through the center hole of the roller, and the roller makes a circular rotation. Two litchi girders are connected together, and the girdling handle is fixed on the connecting rod. One end of the girdling handle is provided with a girdling knife, and the other end is provided with a connecting plate. With manual assistance, the girdling knife is fixed with the handle and the connecting rod. The point is the center of the circle, and the radius from the fixed point to the tip of the girdling knife is used as a circular motion to gird the litchi.

Description

technical field [0001] The invention relates to a manually assisted hand-held spring plate variable-diameter branch clamping litchi girdler, which belongs to the field of mechanical technology. Background technique [0002] Litchi needs to be girdled twice in a growing season. The first time should be in the middle and early May. It is mainly to inhibit the growth of spring shoots, form moderate branches, lay the foundation for flower bud differentiation, and at the same time have the effect of preserving fruit for the first-hanging fruit trees. The second time is in the first ten days of August, it can reduce the hair loss of autumn shoots and control late autumn shoots, and promote the physiological differentiation of flower buds. For flourishing trees with unbalanced vegetative growth and reproductive growth, hormone imbalance in the tree will lead to difficulties in flower bud differentiation and fruit stabilization, and girdling Finally, the channel of the phloem sieve ...

AI Technical Summary

Problems solved by technology

[0002] Litchi needs to be girdled twice in a growing season. The first time should be in the middle and early May. It is mainly to inhibit the growth of spring shoots, form moderate branches, lay the foundation for flower bud differentiation, and at the same time have the effect of preserving fruit for the first-hanging fruit trees. The second time is in the first ten days of August, it can reduce the hair loss of autumn shoots and control late autumn shoots, and promote the physiological differentiation of flower buds. For flourishing trees with unbalanced vegetative growth and reproductive growth, hormone imbalance in the tree will lead to difficulties in flower bud differentiation and fruit stabilization, and girdling Finally, the channel of the phloem sieve tube is cut off, which hinders the transport of carbohydrates to the root system, inhibits root growth and nutrient absorption, and thus plays a role in controlling water. Liquid concentration and carbon-nitrogen ratio can promote flower bud differentiation and increase fruit setting rate. In addition to girdling the main trunk of litchi, each side branch must be girdled every year, and the branches growing on the side branches must also be girdled. The growth angle of each side branch is not only the same, but also The spacing is small and the radius of gyration is small. Invention patent 201410485285.2 uses a motor driven by a gasoline engine, which has a large volume and a large radius of gyration. The inclination angle of the girdling knife is realized by rotating the platform around the rotating shaft through the expansion and contraction of the rotating oil cylinder. Only one surface can be rotated and tilted. It cannot realize the simultaneous rotation and tilt of multiple surfaces in the space, and the scope of use is very limited. It is only suitable for the girdling of litchi trunks. In addition, the incision width of litchi girdling branches ranges from 1.0 to 3.0 cm, and the incision depth ranges between 0.2 to 0.5 cm, the incision should be even, and the phloem contains more wood fibers. When the girdling knife is girdling the girdling site, there is no clamping mechanism, which will tear the phloem adjacent to the girdling site, resulting in too large a girdling area , the girdling of litchi is not easy to heal, and the nutrient transport is blocked, which affects the growth and fruit setting rate of litchi

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