Artificial assistance handheld push-and-pull electromagnet variable-diameter branch clamping lychee tree girdling device

Abstract

The invention provides an artificial assistance handheld push-and-pull electromagnet variable-diameter branch clamping lychee tree girdling device. The girdling device comprises a handle, springs, a rotary shaft, a moving ring, a fixed ring and push-and-pull electromagnets. One spring is fixedly mounted on the handle, and a tension spring is used as the spring. During operating, the moving ring is fixed to a lychee tree branch by pulling the springs arranged on the electromagnets to prevent the moving ring from rotating along with a girdling knife. The handle is divided into two parts. The fixed ring is mounted on the handle. Two parts of the fixed ring are buckled together to form a full circle. The handle is opened and closed, and the fixed ring is opened and closed accordingly. The fixed ring is provided with grooves. Rolling wheels are embedded into the grooves and roll in the grooves. A link rod penetrates through center holes of the rolling wheels. The rolling wheels rotate circumferentially. The link rod connects two lychee tree girdling devices together. A girdling handle is fixed to the link rod. One end of the girdling handle is provided with the girdling knife. The other end of the girdling handle is provided with a yoke plate. Under artificial assistance, the girdling knife does circular movement to conduct girdling on a lychee tree with the fixed point of the handle and the link rod as the circle center and with the distance from the fixed point to the knife point of the girdling knife as the radius.

Description

technical field

[0001] The invention relates to a manually assisted hand-held push-pull electromagnet variable-diameter branch clamping litchi girdler, which belongs to the field of mechanical technology. Background technique

[0002] Spiral girdling is adopted, the width of girdling is 2.5-3.0 cm, and the pitch is 10 cm, so that young litchis bear early fruit, high yield, high quality, and reduce fruit drop. Litchi spiral girdling can inhibit the growth of branch tips, promote flower bud differentiation, and preserve flowers and fruits. It is an important measure to reduce the water absorption of the fruit skin behind the pulp water absorption caused by heavy rain during the fruit expansion period, prevent the outflow of nutrients, and improve the fruit setting rate, fruit shape index and fruit weight. It does not affect the growth of the root system. Peeling is carried out before flowering or in full bloom. In addition to girdling the main trunk, each side branch must be g...

Images