Skid-proof and rust-proof test tube clamp

Abstract

The invention relates to a special apparatus for physical, chemical and biological experiments, particularly to a test tube clamp. A skid-proof and rust-proof test tube clamp comprises two clamp pieces and two clamp holders, wherein one of the clamp holders is connected with a long holder, and the long holder is sleeved with a plastic sleeve. The test tube clamp is characterized in that the clamp pieces and the clamp holders are once formed to be a whole; the total length of the two clamp pieces and the two clamp holders is 9cm; at a position 2 / 9 of the total length of the test tube clamp, the two clamp holders are connected by using a hinge pin and can rotate around the hinge pin; and at a position 4 / 9 of the total length of the test tube clamp, two hollow cylinders (same in inside diameter and material, and respectively provided with a thread at the middle parts thereof) are symmetrically arranged on the two clamp pieces, and then a screw is adopted to connect the two hollow cylinders by the thread; and the flare angles of the two clamp pieces can be flexibly adjusted by adjusting the screw, and the insides of opposite surfaces of the two clamp pieces are fixedly provided with felts or high temperature resistant plastics, so that under the protection action of the two felts or high temperature resistant plastics, the screw is adjusted to tightly clasp a test tube and enable the test tube to be stressed uniformly. Except the felts or high temperature resistant plastics and the plastic sleeve, the adopted materials of the test tube clamp are all stainless steel materials, therefore, the occurrence of rusting caused by wetness or long-time disuse can be effectively prevented. The skid-proof and rust-proof test tube clamp is simple in structure, low in cost, durable, safe and reliable, strong in practicability, easy to generalize, and great in market potential.

Description

Technical field: [0001] The invention relates to a special equipment for physics, chemistry and biology experiments, in particular to a test tube clamp used for test tubes with a diameter of more than 25 mm. Background technique: [0002] At present, the physical, chemical, and biological laboratories use very simple wooden test tube clamps with springs that are fixed and movable at the same time. Test tubes with a diameter of more than 25 mm often use lacquered iron test tube clamps with springs that are matched with iron stands. The elasticity of the spring gradually weakens with the increase in the number of uses, causing the test tube clamp to be unstable and slipping from the hand or the iron stand, causing experimental accidents; the spring and iron test tube clamps are prone to rust and break after a long time of use. So it is necessary to design a safe, reliable, non-slip and anti-rust test tube clamp. Invention content: [0003] The object of the present inventio...

AI Technical Summary

Problems solved by technology

[0002] At present, the physical, chemical, and biological laboratories use very simple wooden test tube clamps with springs that are fixed and movable at the same time. Test tubes with a diameter of more than 25 mm often use lacquered iron test tube clamps with springs that are matched with iron stands. As the number of times of use increases, the elasticity of the spring gradually weakens, causing the test tube clamp to be unstable and slipping from the hand or the iron stand, causing experimental accidents; springs and iron test tube clamps are prone to rust and break after being used for a long time and are not durable

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