Sample reserving device

The utility model discloses a sample reserving device which comprises a storage mechanism and a lifting mechanism, and a container is arranged on the storage mechanism; the lifting mechanism comprises a lead screw and a sliding block, the lead screw is in threaded fit with the sliding block and can drive the sliding block to ascend and descend, and the sliding block is connected with a liquid inlet and outlet pipe so as to drive the liquid inlet and outlet pipe to stretch into and retreat from the container. According to the sample reserving device disclosed by the embodiment of the utility model, by arranging the lifting mechanism in threaded fit with the lead screw and the sliding block, the liquid inlet and outlet pipe connected with the sliding block can move conveniently, so that the sample can be reserved or collected, and the structure can be simplified and the operation stability can be improved. 本实用新型公开了一种留样装置，包括：储存机构和升降机构，所述储存机构上设有容器；所述升降机构包括丝杆和滑块，所述丝杆和所述滑块螺纹配合，并可驱动所述滑块升降，其中，所述滑块连接进出液管，以驱动所述进出液管伸入和退