US 12,446,490 B2
Crop row detection device
Jingxin Shen, Shandong (CN); Yongjia Sun, Shandong (CN); Yitian Sun, Shandong (CN); Qinglong Li, Shandong (CN); Gang Chen, Shandong (CN); and Zhiqi Zhang, Shandong (CN)
Assigned to Shandong Academy of Agricultural Machinery Sciences, Ji'an (CN)
Filed by Shandong Academy of Agricultural Machinery Sciences, Shandong (CN)
Filed on Nov. 7, 2024, as Appl. No. 18/940,811.
Claims priority of application No. 202410171685.X (CN), filed on Feb. 7, 2024.
Prior Publication US 2025/0248333 A1, Aug. 7, 2025
Int. Cl. A01D 41/127 (2006.01); G01S 19/42 (2010.01); A01B 69/04 (2006.01); A01D 45/02 (2006.01)
CPC A01D 41/127 (2013.01) [G01S 19/42 (2013.01); A01B 69/008 (2013.01); A01D 45/021 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A crop row detection device, comprising a bracket, a buffer mechanism and an angle sensing mechanism;
a left side and a right side of a front end of the bracket are rotatably connected with one end of a respective support bar of two support bars; and an other end of each support bar is hingedly connected with one end of a respective linkage bar of two linkage bars and one end of a respective collision plate of two collision plates;
the buffer mechanism is arranged on the bracket; and other ends of two linkage bars are rotatably connected onto the buffer mechanism respectively;
the angle sensing mechanism is arranged onto a rear end of the bracket; and other ends of two collision plates are rotatably connected onto the angle sensing mechanism; and upon the collision plates colliding crop rows and deflecting, the angle sensing mechanism triggers an action of an angle sensor;
the buffer mechanism comprises a sliding base and a sliding sleeve; and the sliding sleeve is slidingly connected to an outer side of the sliding base; and a compression spring is arranged at an outer wall of the sliding base; and one end of the compression spring is connected with the sliding base, an other end of the compression spring is connected with the sliding sleeve;
the other ends of the two linkage bars are rotatably connected with both the left side and the right side of the sliding sleeve respectively;
the buffer mechanism further comprises a screw, a motor and a linear bearing; a motor fixing plate is arranged on the bracket; and a support fixing plate is at a front end of the bracket; and front ends of two support bars are symmetrically hinged onto the left side and the right side of the support fixing plate; and one end of the screw is spirally mounted on a front end of the bracket; the motor is mounted onto the motor fixing plate; and an output shaft of the motor is connected to an other end of the screw;
the linear bearing is threadedly connected onto the screw; and the sliding base is slidingly connected onto the screw; and a base flange is arranged at a rear end of the sliding base; and the base flange is connected with the linear bearing.