CN215296366U

CN215296366U - High-precision measuring cylinder

Info

Publication number: CN215296366U
Application number: CN202120907774.8U
Authority: CN
Inventors: 朱立岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-24
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a high-precision measuring cylinder. The measuring cylinder is fixed into a whole by an upper part and a lower part through a fastener; the lower part of the device consists of a base, a wall body and a sealing ring to form a product chamber, and the upper part of the device consists of a funnel opening, a channel, a graduated scale, a funnel opening and an exhaust channel; utilize the utility model discloses can make the precision of measuring article volume size and needs as required, can not influence the precision because of the article size.

Description

High-precision measuring cylinder

Technical Field

The invention relates to a measuring cylinder for measuring the volume of an article, in particular to an article with the volume error of less than 0.1mL (milliliter).

Background

The existing measuring cylinder device for measuring the volume of irregular articles is normally in an integral straight cylinder type and cup shape, and the measuring operation method comprises the following steps: after the object is put into the measuring cylinder, measuring liquid (water, corresponding liquid is selected according to actual requirements) is added, the numerical value of the added measuring liquid is recorded, the adding is stopped after the liquid is added to the object, and the volume of the measured object is obtained by subtracting the recorded measuring liquid numerical value from the numerical value on the scale.

The method for identifying the real and false of solid gold jewelry and solid investment gold blocks through destructive inspection such as shearing, melting and the like is generally to identify the real and false according to experience by 4 auxiliary methods of slight burning, color watching, hardness and density calculating, and the measurement error of the gold volume is required to be not more than 0.02 ml. The measuring cylinder has larger diameter and scale interval with the larger measurable object, and has lower precision; such as: the 10mL graduated cylinder interval is conventionally 0.2mL (mL), 12 mm in diameter; the scale interval of a 1000mL graduated cylinder is conventionally 10mL (mL), with a diameter of 65 mm; obviously, the graduation interval of the measuring cylinder with the diameter larger than that of the solid gold jewelry such as rings, bracelets and the like cannot reach 0.02 ml.

Disclosure of Invention

In order to overcome the defect that the existing measuring cylinder cannot measure the volume of an article with high precision, the invention provides the measuring cylinder which is divided into an upper part and a lower part, the article is placed in the measuring cylinder and then fastened, and measuring liquid is added to measure the volume of the article with high precision.

The technical scheme adopted by the invention for solving the technical problems is as follows: a high-precision measuring cylinder comprises an upper body scale part and a lower body article chamber part, wherein a sealing ring and a fastener are arranged to firmly combine the upper part and the lower part; the upper body reading part consists of a funnel opening, a scale mark and two channels, wherein the funnel opening is connected with one channel.

The invention has the beneficial effects that: the measuring cylinder of the invention can be mainly made of transparent materials such as glass plastics and the like, and has low manufacturing cost; compared with the traditional measuring cylinder, the measuring cylinder is provided with an upper part and a lower part, the required precision can be achieved by designing the width of an upper body channel, the largest article to be measured can be achieved by designing the size of a lower body article chamber, and the measuring cylinder can achieve the designed precision regardless of the size of the measured article.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front cross-sectional view of the present invention;

in the figure, 1, a base, 2, a lower body wall, 3, an object chamber, 4, a sealing ring, 5, a fastener, 6, an upper body wall, 7, a channel, 8, an exhaust channel, 9, a graduated scale, 10, a funnel opening and 11 are firm parts.

Detailed Description

The high-precision measuring cylinder comprises an upper part and a lower part, wherein the lower part comprises a base 1, a lower body wall 2 and a sealing ring 4 to form an article chamber 3 (120 ml is manufactured in the example); the upper part consists of an upper body wall 6, a channel 7, an exhaust channel 8, a graduated scale 9 (the minimum scale value manufactured by the example is 10 microliter) and a funnel mouth 10; when in measurement, the fastener 5 and the fastener 11 are taken away, the solid gold jewelry is placed in the article chamber 3, the measurement liquid is poured in from the funnel mouth 10, the volume of the poured liquid is measured and recorded before pouring, the air in the article chamber 3 is exhausted through the top end port 8, and the measurement can be stopped when the liquid soaks the article chamber 3 and rises to the graduated scale 9, so that the data value can be conveniently read; the volume of the detected object can be calculated by subtracting the value of the recorded poured liquid from the read value; the density of gold is 19.32 g/cubic centimeter at normal temperature, the density is equal to mass/volume (rho is m/V), 1 cubic centimeter is equal to 1 milliliter is equal to 1000 microliter, and the density data of the detected object is obtained by calculation to assist in distinguishing the authenticity of the measured object.

The high-precision measuring cylinder has the advantages that the high-precision measuring cylinder is formed by combining the upper part and the lower part, so that the required measuring precision can be manufactured, the size range of an article to be measured can also be manufactured, and the precision is not influenced by the size of the article to be measured.

Claims

1. The high-precision measuring cylinder is characterized by comprising an upper part and a lower part which are fixed into a whole by a fastener; the lower part comprises base, lower body wall body, sealing washer component article room, and the upper part comprises upper body wall body, passageway, scale, flare opening, exhaust passage, the base top sets up lower body wall body, the inside article room of setting up of lower body wall body, article roof portion connection sealing washer, the sealing washer outside sets up the fastener, article room top is connected upper body wall body, upper body wall body passes through the parallelly connected article room of sealing washer joint, upper body wall body one side sets up the passageway, upper body wall body opposite side sets up exhaust passage, upper body wall body middle-end sets up the scale, upper body wall body top sets up the funnel and is located the passageway top surface, upper body wall body and lower body wall body junction set up firm firmware.