Drop tube for laboratory

Abstract

The invention relates to the technical field of experimental equipment, in particular to a laboratory dropper; it includes a dropper body, a deck, a spring hinge, a finger ring, and a splint; the deck is a flat plate, and the center of the deck is provided with a dropper The round hole through which the glass tube of the tube body passes, and the upper part of the glass tube of the dropper body is glued into the round hole of the holder; the upper parts of both sides of the holder are respectively provided with a splint, and the splint and the holder are connected by a spring hinge The inner side of the splint is bonded to the side of the rubber nipple of the dropper body; a finger ring is fixed on the outer side of each splint; the present invention is a laboratory dropper, which adopts a spring hinge design and can automatically reset the splint , can promote the rubber nipple of the dropper body to bounce up, and prevent the dropper from dripping due to unstable hand strength.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a laboratory dropper. Background technique [0002] The dropper is composed of a rubber nipple and a pointed glass tube. It is an important equipment in the laboratory. It is used to absorb and transfer the experimental solution. When in use, it can only be placed vertically. cause corrosion. However, in the process of transferring the solution, the fingers pinching the nipple should provide enough friction, and a small amount of force should be used to clamp the nipple, and the strength of the person will change. Once the strength is slightly stronger, the dropper will be squeezed out The solution in it will cause waste, and even corrode the tabletop, causing human injury. And all there is this defective in existing dropper. In addition, the rubber nipple of the existing dropper relies on its own elasticity to reset, and when the dropper absorbs a liquid with h...

AI Technical Summary

Problems solved by technology

[0002] The dropper is composed of a rubber nipple and a pointed glass tube. It is an important equipment in the laboratory. It is used to absorb and transfer the experimental solution. When in use, it can only be placed vertically. cause corrosion

However, in the process of transferring the solution, the fingers pinching the nipple should provide enough friction, and a small amount of force should be used to clamp the nipple, and the strength of the person will change. Once the strength is slightly stronger, the dropper will be squeezed out The solution in the solution will cause waste, and even corrode the table top, causing human injury

And all there is this defect in existing dropper

In addition, the rubber nipple of the existing dropper relies on its own elasticity to reset, and when the dropper absorbs a liquid with high viscosity, the rubber nipple itself cannot be reset due to insufficient elasticity, resulting in failure to absorb

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