A retractable and detachable straw holder

The utility model belongs to the field of laboratory appliances, and relates to a straw holder, in particular to a retractable and detachable straw holder. By adjusting the telescopic rod, the pipette holder can be adjusted to any height, ensuring that the Pasteur pipette or the glue-tip dropper can be placed on the shelf stably without slipping off the test bench, avoiding the fragmentation of the suction end of the glue-head dropper and saving costs , And avoid cross-contamination caused by the experimenters throwing Pasteur pipettes or plastic droppers; the pipette holder has eight pairs of arc-shaped grooves, which can be used for eight Pasteur pipettes or plastic droppers at the same time ; The pipette holder is equipped with a glass reservoir, which can allow the residual liquid in the Pasteur pipette or the glue head dropper to flow into the reservoir, avoiding the residual liquid in the pipe from contaminating or corroding the rubber head and the test bench; in addition, the liquid reservoir is two The side is equipped with 4 round holes, facing each other in pairs, so that the other end of the telescopic rod connected with the rectangular frame can be inserted into the round hole to make the rectangular frame stable; at the same time, the straw frame is detachable, saving space.