4results about How to "Reliable sampling" patented technology

This utility model relates to the field of concentrate powder sampling technology, specifically to a ton-bag concentrate powder sampling device for use during the freezing period in extremely cold regions. One end of the sampling probe is provided with an incised perforated tooth pattern, and the other end is provided with an annular limiting buckle. The sampling probe has a strip-shaped pressure relief groove area, which is arranged along the axial direction of the sampling probe. Two anti-freeze hydraulic cylinders are arranged in parallel. The piston rod ends of the two anti-freeze hydraulic cylinders are connected to the push plate, and the bases of the two anti-freeze hydraulic cylinders are mounted on the fixed base plate. A movable sampling frame is provided between the two anti-freeze hydraulic cylinders, one end of which is connected to the push plate. The movable sampling frame has multiple pull-out slots that match the annular limiting buckle. Both the push plate and the fixed base plate have grooves that allow the sampling probe to pass through. This utility model enables efficient, accurate, and reliable sampling of ton-bag concentrate powder in extremely cold regions.

The utility model discloses an asphalt concrete sampling device which comprises an outer sleeve, an upper nut seat, a lower nut seat, a sampling cup and a screw rod, wherein the upper nut seat and the lower nut seat are welded on the inner wall of the outer sleeve, the sampling cup is arranged at the bottom of the outer sleeve, and the screw rod is sleeved in the outer sleeve and is in threaded connection with the upper nut seat and the lower nut seat. The baffle disc is arranged at the bottom of the screw rod and is arranged in the sampling cup, the connecting rod is arranged at the bottom of the center of the baffle disc, the conical head is arranged at the bottom of the connecting rod, and the handle is arranged at the top of the screw rod. According to the scheme, the concrete sampling device has the advantages of being simple in structure, easy and convenient to operate, reliable in sampling and the like, and has high practical value and popularization value in the technical field of concrete sampling.

The utility model discloses a quick sampler for food detection, which comprises a supporting seat, a support is mounted on the supporting seat, a supporting rod is slidably connected onto the support, a turntable is welded at the bottom end of the supporting rod, a sampling barrel is sleeved on the outer side of the turntable, a butt-joint rod is welded on the supporting rod, and the butt-joint rod is sleeved on the outer side of the sampling barrel. The other end of the butt joint rod is fixedly connected with the inner wall of the sampling barrel, the sampling barrel is internally provided with a rotating disc, the rotating disc is provided with a second end part and a first end part which have a height difference, the tail end of the second end part is provided with a vertical sheet, and pulp is cut through the second end part and the vertical sheet; the cut pulp moves to the position above the rotating disc through the gap between the second end part and the first end part, so that when the sampling barrel is lifted upwards, the rotating disc plays a role in supporting the pulp, the pulp can move upwards along with the sampling barrel and cannot be separated from the sampling barrel, and sampling is reliably completed.

This utility model relates to the technical field of geotechnical engineering test sampling devices, specifically to a true triaxial undisturbed soil sampling device, comprising: a support assembly including a C-shaped panel and a lower panel fixedly connected by a fixed support column, the lower panel having a square hole at its center; two sampling counterweights, detachably and symmetrically installed on both sides of the lower panel; a sampling section including a sampling mold installed above the square hole via a power source; and a sample loading mold including two symmetrically arranged sleeves, with metal hoops fixedly installed on the outside of the two sleeves by adjusting bolts. This application can reduce disturbance to the soil sample, achieve low-disturbance sampling, maintain the original structure and stress state of the soil sample, meet the requirements of true triaxial testing for soil samples, obtain mechanical parameters that are difficult to measure through conventional testing through true triaxial testing, establish a more accurate soil constitutive model, describe the nonlinear relationship between stress-strain-strength, and provide key technical support for practical engineering.