The pruning of fruit trees is an indispensable and important link during the growth and management of fruit trees.

Working principle: Grip-type high-branch shears are suitable for pruning branches and fruit picking in orchards in various seasons, and are not restricted by seasonality, passability and regionality. It simply relies on manpower to pinch through the handle to drive the pulling wire, which is hinged with the movable knife, and the pruning is completed in a pinch-to-close motion. The human hand holds the handle and moves from position a to position b, which drives the moving knife to move from position a to position b; the telescopic rod can be adjusted to a corresponding length according to the height of the work object.

Institutional composition: The adjustable high-grip shears are composed of a handle, a telescopic rod, a transmission mechanism and a scissors. The telescopic rod is divided into 3 adjustable telescopic parts, which can be adjusted in stages according to the number of holes punched on the telescopic rod. 8 working heights can be achieved through the telescopic cooperation of the 3-part rods, and the fully opened can reach 26 foot (8m); such as people His height, the maximum working range can reach 26 foot (8m). After storage, the shortest pole is 3.2 foot (1m), which is easy to carry. The adjustment component is used to control the extension and contraction of the telescopic rod. The middle section of the 3 parts of the telescopic rod is fixed, and the other two sections are respectively extended upward and downward based on the middle part (the adjuster a controls the first section to extend upward, Adjuster b controls the third section to extend downward). The transmission rod is inside the telescopic rod, and the cable connecting the handle is also divided into three parts to match the telescopic rods expansion and contraction. The high branches can be cut by kneading by hand. The blade is equipped with a plastic toothed clip, which can clamp the branches during pruning and also clamp the picked fruits. The trimming head can be rotated to increase the viewing angle of the operator. Design of height adjustment parts The adjustable telescopic rod of the high branch shears is made of aluminum alloy and chrome-plated. Aluminum alloy materials have low density, high strength-to-mass ratio, and convenient processing and forming in the production process. They have been widely used in the research of portable tools. After the aluminum alloy is plated with chromium, it can not only effectively improve its decoration, but also enhance its anti-corrosion and wear resistance, and can greatly increase the service life of the telescopic rod in the complex environment of the orchard. The structure of the telescopic rod and the section parameters of the 3-section telescopic rod. A groove with a radius of 0.12 inch (3mm) is stamped on each section of the telescopic rod to serve as the guide rail and guide groove for the telescopic motion of the telescopic rod to ensure that the telescopic rod has no relative rotation, so as to facilitate the realization of all the constraints of the telescopic rod after reaching the predetermined position. .

Design of shear parts: The main purpose of tall branch shears is to cut branches, so the key component is scissors. The difference between the scissors of the grip type high branch scissors and the ordinary scissors is the following 3 points: 1) The blade is divided into one moving and one static. The gripping handle drives the opening and closing of the moving blade, and the fixed knife and the telescopic rod remain stationary in a straight line; 2) The shape of the blade is not a straight line, but a smooth arc, and the blade is wedge-shaped on one side, which can realize sliding cutting. Because sliding cutting is more labor-saving than cutting [4], this kind of blade can be more convenient to operate. 3) Two blades are provided with a serrated clamping piece, which can clamp the cut branches while cutting the branches. In this way, the discarded branches will not overlap between the branches, thereby hindering the effective photosynthesis, and facilitating the recycling of discarded paper strips.

Note

It is recommended to first rely on the product on the tree and then connect from the bottom to push up. Its easier in this way.