Base volumetric flask

A technology of volumetric flasks and measuring tubes, which is applied in the field of glassware, can solve the problems of volumetric flasks falling down, damage, poor stability, and high center of gravity, and achieve the effect of low center of gravity, good stability, and simple structure

Inactive Publication Date: 2012-12-26
泰州市苏京实验仪器科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bottle body of the general-purpose volumetric bottle is regular, and the center of gravity is high after the storage is fully filled, and the stability is poor when standing upright. A little carelessness or slight shaking may cause the volumetric bottle to fall down and be damaged, resulting in direct losses.

Method used

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  • Base volumetric flask
  • Base volumetric flask

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Embodiment Construction

[0012] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0013] figure 1 The shown 25ml calibrated base volumetric flask is a transparent body made of glass, including a base 1 , a main body bottle 2 , a measuring tube 3 and a bottle stopper 4 . The main body bottle 2 is shaped like a vertically placed egg, and the curved surface at the large end is connected downward to the truncated conical base 1 to form a vertical structure. Tapered hole and bottle stopper 4 are sealed together, and measuring tube 3 of the present invention is an elongated tube structure with a diameter of Φ7mm and a tube length of 40mm. The waist of the measuring tube 3 is provided with a scale line 3.1 engraved with a standard load, and the capacity from the scale line 3.1 of the measuring tube 3 to the upper mouth of the main body bottle 2 accounts for 15% of the standard load. In this embodiment, the internal capaci...

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Abstract

The invention discloses a base volumetric flask which is composed of a base made of glass, a main flask, a measuring tube and a flask plug. The main flask is in a shape of a vertical egg, a large end curve face body is connected downwards with the base in a shape of a cone frustum to form a vertically arranged structure, a small end of the main flask is connected upwards with the measuring tube, an upper tube port of the measuring tube is sealed in a matching way by an abrading taper hole and the flask plug. The measuring tube is in a long and thin structure, the ratio of the pipe diameter and the length is 1:5-8, a scale mark for a standard packing volume is marked on a waist part of the measuring tube, and the volume from the scale mark of the measuring tube to an upper port end of the main flask accounts for 10%-15% of the standard packing volume. The highest liquid level is located in the measuring tube with a small pipe diameter during filling, an internal volume at the position is small, even a microscale error of the packing volume can be converted into a large liquid level difference, so that the measurement can be carried out accurately. According to the base volumetric flask, different-specification base volumetric flasks are manufactured and have same technical effects.

Description

technical field [0001] The invention relates to a glass vessel for volumetric measurement, in particular to a volumetric bottle with a base for containing chemical reagents. Background technique [0002] Chemical reagents or standard solutions are commonly used in pharmaceutical, chemical and other industries. In addition to high-quality indicators, such fine chemicals also have strict measurement requirements when used. The existing general-purpose volumetric flask is a cylindrical bottle body, which can meet the requirements for sealed storage and quantitative requirements. However, the bottle body of the general-purpose volumetric flask is regular, and the center of gravity is high after the storage is fully filled, and the stability is poor when standing upright. A little carelessness or slight shaking may cause the volumetric flask to fall down and be damaged, directly causing losses. Contents of the invention [0003] The invention mainly aims at the deficiencies of...

Claims

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Application Information

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IPC IPC(8): G01F19/00
Inventor 翁书京翁淇潆
Owner 泰州市苏京实验仪器科技有限公司
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