Abstract: A soil probing device for determining properties of soil during penetration into ground using a soil probing device. The soil probing device has a measuring probe, a plurality of rod sections each having a central axis for assembly of the probing rod, driving means for penetrating the probing rod into the ground, and a measuring means for determining properties of the ground during penetration of the probing rod into the ground. The probing rod while penetrated into the ground is extendable each time by a new one of the rod sections. Each of the rod sections are provided at their outer ends with complementary male and female locking parts which in an axially aligned position of adjacent rod sections, are movable relative to each other from an unlocked into a locked position and from the locked position into the unlocked position.

Abstract: A soil probing device for determining properties of soil during penetration into ground using a soil probing device. The soil probing device has a measuring probe, a plurality of rod sections each having a central axis for assembly of the probing rod, driving means for penetrating the probing rod into the ground, and a measuring means for determining properties of the ground during penetration of the probing rod into the ground. The probing rod while penetrated into the ground is extendable each time by a new one of the rod sections. Each of the rod sections are provided at their outer ends with complementary male and female locking parts which in an axially aligned position of adjacent rod sections, are movable relative to each other from an unlocked into a locked position and from the locked position into the unlocked position.

Abstract: A soil probing device for determining properties of soil during penetration into ground. Soil probing device has a measuring probe, a plurality of rod sections each having a central axis for assembly of the probing rod, driving means for penetrating the probing rod into the ground, and a measuring means for determining properties of the ground during penetration of the probing rod into the ground. Each of the rod sections is provided at outer ends with complementary male and female locking parts moveable relative to each other from an unlocked to a locked position. The male locking part has two or more threaded male bayonet columns, each male bayonet column having a plurality of radially outwardly projection screw thread turn sections. The female locking part has two or more threaded female bayonet columns, each threaded female bayonet column having a plurality of radially inwardly projecting screw thread turn sections.