US 12,247,901 B1
Soil layer detection drilling device
Chuanguo Du, Jinan (CN); Jiyong Pang, Jinan (CN); Gaojun Qi, Jinan (CN); Di Tang, Jinan (CN); and Tao Chen, Jinan (CN)
Assigned to POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCION CO., LTD., Jinan (CN)
Filed by POWERCHINA SEPCO1 ELECTRIC POWER CONSTRUCTION CO., LTD., Jinan (CN)
Filed on Nov. 12, 2024, as Appl. No. 18/945,415.
Application 18/945,415 is a continuation of application No. PCT/CN2023/127452, filed on Oct. 30, 2023.
Claims priority of application No. 202310181685.3 (CN), filed on Mar. 1, 2023.
Int. Cl. G01N 1/14 (2006.01); E21B 3/00 (2006.01); G01N 1/04 (2006.01)
CPC G01N 1/04 (2013.01) [E21B 3/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A soil layer detection drilling device, comprising a drilling cylinder (1), wherein two drive wheels (19) are provided with one matingly mounted at a top of the drilling cylinder (1) and the other matingly connected with an output shaft of a rotary motor (18); a soil-sampling assembly (2) is provided inside the drilling cylinder (1);
the soil-sampling assembly (2) comprises a sliding disk (21), and a conical head (23) is connected at a bottom of the sliding disk (21) by two connecting rods (22) that are symmetrically disposed; a screw rod (24) is rotatably connected between the sliding disk (21) and the conical head (23), and an upper end of the screw rod (24) penetrates above the sliding disk (21) and is matingly connected with an output shaft of the drive motor (27) by a coupling; a soil-sampling member (25) and a jacking member (26) are matingly mounted on the screw rod (24);
the soil-sampling member (25) comprises a nut sleeve (251), the nut sleeve (251) is threadedly connected with the screw rod (24), a swing arm (252) is rotatably connected to the nut sleeve (251), and a soil-sampling cylinder (255) is provided at an end of the swing arm (252); an auxiliary arm (253) is rotatably connected to a middle position of the swing arm (252); a fixing base (254) is rotatably connected to the auxiliary arm (253); the fixing base (254) is welded to one side of the connecting rod (22);
an inclined port is provided at an opening end of the soil-sampling cylinder (255); a through hole is provided at one end of the swing arm (252); the soil-sampling cylinder (255) snaps into the through hole;
an included angle between the swing arm (252) in a contracted state and a center axis of the screw rod (24) is 30 degrees, the swing arm (252) is in an extended state when the soil-sampling cylinder (255) samples the soil, and the included angle between the swing arm (252) in the extended state and the center axis of the screw rod (24) is 35-40 degrees; the jacking member (26) comprises a sliding sleeve (261), the sliding sleeve (261) is sleeved onto and slidingly connected with the screw rod (24), a jacking arm (262) is rotatably connected to one side of the sliding sleeve (261), and a rubber ball (263) is matingly mounted at an end of the jacking arm (262); a side support arm (264) is rotatably connected to a middle position of the jacking arm (262); a connecting base (265) is rotatably connected to the side support arm (264); the connecting base (265) is welded to the connecting rod (22);
a length of the jacking arm (262) is less than a length of the swing arm (252); when the included angle between the swing arm (252) in the contracted state and the center axis of the screw rod (24) is 30 degrees, the jacking arm (262) is in a contracted state, and the rubber ball (263) is not in contact with an inner wall of the drilling cylinder (1); and when the included angle between the swing arm (252) and the center axis of the screw rod (24) is less than 30 degrees, the nut sleeve (251) pushes the sliding sleeve (261) to slide upwardly, the jacking arm (262) is unfolded, and the rubber ball (263) rests against and is in snap connection with the inner wall of the drilling cylinder (1).