A detachable burette for easy internal cleaning

Abstract

The invention discloses a detachable burette which is convenient for internal cleaning, and relates to the technical field of titration equipment. The invention comprises a fixing mechanism; the upper surface of the first fixing ring is rotatably connected with a first threaded rod; the side surface of the first threaded rod is threaded and connected with a moving block; one side of the moving block is fixedly connected with a capacity scale; the inner wall of the first fixing ring is fitted with a gap There is a liquid storage mechanism; the inner wall of the first liquid storage tube near the top is fixedly connected with an internal thread groove; the upper surface of the hollow round table is fixedly connected with a second liquid storage tube. Through the design of the first liquid storage tube, the control valve, the second liquid storage tube, the third liquid storage tube and the fixing mechanism, the present invention can realize the rapid disassembly and assembly of the burette, facilitate the cleaning inside the burette, and greatly improve the cleaning efficiency of the burette , At the same time, through the setting of the control valve, it is convenient to add the titration reagent in the burette, reduce the need to directly hold the reagent bottle for backfilling, and effectively avoid the leakage of the reagent.

Description

technical field [0001] The invention belongs to the technical field of titration equipment, in particular to a detachable burette for internal cleaning. Background technique [0002] A burette is a volumetric instrument used to accurately dispense an indeterminate amount of liquid. It is made of a slender and uniform glass tube, with a scale on the tube, a pointed mouth at the lower end, and a joint gate in the middle to control the titration speed. When performing a titration experiment, it is necessary to control the amount of titration by controlling the throttle on the burette. When starting the titration, in order to ensure the accuracy of the titration experiment, it is often necessary to fill the titration reagent in the burette to the zero mark. Titrate. [0003] The function of the existing burette is very single, generally a one-piece structure, its size is long, it is not easy to move and take, and it is easy to bump and cause fragmentation. After use, because o...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a detachable burette for internal cleaning, through the first fixed ring, the second fixed ring, a rectangular through hole, an arc guide hole, the first threaded rod, a capacity scale, a liquid storage mechanism, The design of the second threaded rod, inclined support rod, drive ring and spring solves the problem that the existing burette has a single function, cannot be disassembled, is not convenient for internal cleaning, and is not convenient for reading according to the scale line on the burette, which may easily cause experimental errors. It is impossible to flexibly adjust the position of the zero scale line according to the actual position of the liquid level. It is troublesome to clamp and fix the burette by the iron stand, and it is not convenient to flexibly adjust the height of the burette according to the height of the titration volumetric bottle, which increases the labor of the operator. question of strength

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