Clamping and fixing device for distillation flask

Abstract

The invention discloses a clamping and fixing device for a distillation flask. The clamping and fixing device comprises a base and a support rod, wherein the support rod is vertically arranged on the base, a clamp body comprises a fixed frame, the fixed frame is connected with the upper end of the support rod, a first clamping piece and a second clamping piece are transversely arranged at the center of the left side of the inner wall of the fixed frame, a regulating clamping head is arranged at the right side of the fixed frame, the regulating clamping head comprises a regulating shaft, a regulating sleeve and an eccentric cam, a through hole is formed in the right side of the fixed frame, the regulating sleeve is positioned in the through hole, the eccentric cam is arranged at the front end of the regulating shaft, the regulating shaft penetrates through the through hole, the eccentric cam is positioned in the fixed frame, and a flask body of the distillation flask is positioned among the first clamping piece, the second clamping piece and the eccentric cam. The clamping and fixing device overcomes the defect of poor clamping and fixing effects because an existing distillation flask easily deflects when being clamped and fixed, and the clamping and fixing device for the distillation flask is capable of clamping and fixing the flask body of the distillation flask and has good clamping and fixing effects.

Description

technical field [0001] The invention belongs to the field of experimental supplies, and in particular relates to a clamping and fixing device for a distillation flask. Background technique [0002] A flask is a necked glass vessel used in the laboratory to hold liquid substances. It is called a flask because it can withstand a certain amount of heat. Flasks usually have a flat bottom and a round bottom. The flat bottom is called a flat bottom flask, and the round bottom is called a round bottom flask. [0003] A distillation flask is a glass vessel used for liquid distillation or fractionation of substances. It is often used in conjunction with a condenser tube and a liquid receiver, and can also be equipped with a gas generator, similar to a round bottom flask. The precautions when using the round bottom flask are as follows: 1. Asbestos net should be placed when heating, and other hot baths can also be used for heating; when heating, the liquid volume should not exceed ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a bottle body that can be clamped and fixed to the bottle body of the distillation flask and has a good clamping and fixing effect in view of the shortcomings of the existing clamping and fixing method of the distillation flask that is easy to deflect and has poor clamping and fixing effect Clamping fixtures for distillation flasks

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