Patent ID: 11965805
Assignee: NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MEE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The sampling device for evaluating ecological risk of soil in a high geological background area according to claim 1, wherein the impact hammer (131) in the impact rod (13) is driven by a linear motor (133) to reciprocate along the axis of the impact rod (13); and
a piston cylinder (130) is fixedly arranged in the impact rod (13), the impact hammer (131) is in sliding fit in the piston cylinder (130), a driving piston (132) is arranged in the piston cylinder (130) in a sliding fit mode above the impact hammer (131), the linear motor (133) extending along an axial direction of the impact rod (13) is fixedly arranged in the impact rod (13), an impact driving rod (134) is connected between a rotor of the linear motor (133) and the top of the driving piston (132), and both ends of the impact driving rod (134) are connected in the form of spherical hinges.