US 11,985,912 B2
Weeding device for crops having seedling avoidance function
Xin Jin, Luoyang (CN); Hengyi Zhang, Luoyang (CN); Hongbin Suo, Luoyang (CN); Xiaowu Zhu, Luoyang (CN); Mengnan Liu, Luoyang (CN); Yirong Zhao, Luoyang (CN); and Bo Zhao, Luoyang (CN)
Assigned to Henan University of Science and Technology, Luoyang (CN)
Filed by Henan University of Science and Technology, Luoyang (CN)
Filed on Nov. 22, 2023, as Appl. No. 18/518,008.
Application 18/518,008 is a continuation in part of application No. PCT/CN2023/093646, filed on May 11, 2023.
Claims priority of application No. 202210581886.8 (CN), filed on May 26, 2022.
Prior Publication US 2024/0081165 A1, Mar. 14, 2024
Int. Cl. A01B 63/00 (2006.01); A01B 39/18 (2006.01)
CPC A01B 63/008 (2013.01) [A01B 39/18 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A weeding device, comprising:
a rack connected to a weeding machine, wherein a bottom side of the rack is provided with a wheel assembly, wherein a hydraulic pump and two hydraulic cylinders are mounted to the rack, wherein bottom ends of the two hydraulic cylinders are each provided with a support rod, two support rods are vertically arranged, wherein the wheel assembly comprises two wheels and an axle, and the wheel assembly is respectively connected to the two support rods, and wherein the two hydraulic cylinders are configured to cooperate to adjust a height of the rack relative to the wheel assembly, wherein two slide rails are mounted on the rack, and each of the slide rails is an L-shaped structure having a first section mounted on a base wall of the rack and second section mounted on a side wall of the rack, and the base wall is substantially perpendicular to the side wall;
an inter-row weeder mounted to a bottom end of each of the two support rods, wherein the inter-row weeder is configured to be located in a space between two adjacent rows of crops;
a slider moveably connected to the each of the two slide rails and configured to move horizontally in the each of the two slide rails, wherein the slider includes a sliding portion located in the slide rail and a mount portion connected to a bottom of the sliding portion, the mount portion extends in a horizontal direction, and is substantially parallel to the axle; and
an inter-plant weeder mounted to the mounting portion of the slider, wherein the inter-plant weeder includes a plurality of weeder blades arranged side by side at a preset distance along an arrangement direction and extending from the mounting portion of the slider;
wherein the slider is configured to drive the inter-plant weeder to move from a weeding position to a seedling avoidance position, wherein at the weeding position, the plurality of weeder blades of the inter-plant weeder are located between the two support rods, and the arrangement direction of the plurality of weeder blades of the inter-plant weeder is perpendicular to an advancing direction of the weeding machine, and wherein at the seedling avoidance position, the plurality of weeder blades of the inter-plant weeder are located outside the two support rods, and the arrangement direction of the plurality of weeder blades the inter-plant weeder is parallel to the advancing direction of the weeding machine.