CN213068834U

CN213068834U - Measuring cylinder capable of rapidly reading readings for water quality detection experiment

Info

Publication number: CN213068834U
Application number: CN202022490980.1U
Authority: CN
Inventors: 高垒
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-04-27
Anticipated expiration: 2030-11-02

Abstract

A measuring cylinder for quickly reading readings for water quality testing experiments relates to a measuring cylinder. The purpose is the problem of easy error that produces when solving current graduated flask reading. The measuring cylinder consists of a cylinder body and a base, a cavity is arranged in the base, and a reflecting layer is arranged on the bottom surface inside the cavity; the base is a circular truncated cone, and the circumferential surface of the base is covered with a black coating; the cavity is a circular cavity which is horizontally arranged. The utility model discloses the graduated flask finds the concave liquid bottom very easily and with the corresponding scale mark in concave liquid bottom, and black coating can block graduated flask lower part simultaneously and advance the light, has guaranteed that the reading is accurate, and then has guaranteed the accuracy of water quality testing process. The utility model is suitable for a water quality testing experiment.

Description

Measuring cylinder capable of rapidly reading readings for water quality detection experiment

Technical Field

The utility model relates to a graduated flask.

Background

Along with social development, scientific progress and improvement of the living standard of people, the water quality requirement of the drinking water is continuously improved, and the water quality standard of the drinking water is correspondingly continuously developed and improved. Water quality detection is an important measure for ensuring water quality safety. The measuring cylinder is a measuring device frequently used in a water quality detection laboratory, and when reading the reading of liquid in the measuring cylinder, the sight line of eyes of a person is usually tangent to the bottom level of a concave liquid surface in the measuring cylinder for accuracy. However, during reading, due to factors such as the arrangement position of the measuring cylinder and the height of the test bed, the reading is inconvenient for operators, and the reading error is increased; the accurate finding of the bottom of the concave liquid surface and the scale mark corresponding to the bottom are key factors for ensuring the accurate reading. The scale mark is mostly dark in current graduated flask to the liquid that is weighed and the colour of graduated flask body also present darker colour to the environment, the scale mark is close with the liquid colour that is weighed, has improved the searching degree of difficulty of gas-liquid interface, easily causes graduated flask reading error.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an easily produce the problem of error when solving current graduated flask reading, provide a quality of water testing experiment with the graduated flask of quick reading registration.

The utility model discloses a graduated flask for quickly reading readings for water quality testing experiments, which comprises a cylinder body and a base, wherein a cavity is arranged in the base, and a reflecting layer is arranged on the bottom surface inside the cavity; the base is a circular truncated cone, and the circumferential surface of the base is covered with a black coating;

the cavity is a circular cavity which is horizontally arranged.

The utility model discloses principle and beneficial effect do:

the utility model discloses arrange the light below in during graduated flask reading and go on, the light of top light can be reflected to the reflector layer that sets up on the cavity bottom surface in the base, because light propagates along the straight line in measurand liquid and air, and the refraction can take place in the gas-liquid interface department light of measurand liquid and air, light can make the luminance at gas-liquid interface be showing higher than measurand measured liquid because of the refraction reason in gas-liquid interface department during the concave liquid surface is observed to the level, consequently find concave liquid surface bottom very easily, and with the corresponding scale mark in concave liquid surface bottom, black coating can block graduated flask lower part into light simultaneously, it is accurate to have guaranteed the reading, and then has guaranteed the accuracy of water quality testing process.

Drawings

FIG. 1 is a schematic structural diagram of a measuring cylinder for rapid reading of readings in water quality testing experiments;

fig. 2 is a sectional view of the base 2.

Detailed Description

The technical scheme of the utility model is not limited to the specific implementation modes listed below, and also comprises any reasonable combination between the specific implementation modes.

The first embodiment is as follows: the measuring cylinder for quickly reading readings for the water quality detection experiment in the embodiment is composed of a cylinder body 1 and a base 2, wherein a cavity 3 is arranged in the base 2, and a reflecting layer 4 is arranged on the bottom surface inside the cavity 3; the base 2 is a circular table, and the circumferential surface of the base 2 is covered with a black coating 5;

the cavity 3 is a horizontally arranged round cavity.

The principle and the beneficial effects of the implementation mode are as follows:

the lower part of the light is arranged for reading the measuring cylinder in the embodiment, the light of the light above the measuring cylinder can be reflected by the reflective layer 4 arranged on the bottom surface of the cavity 3 in the base 2, the light is transmitted along a straight line in the measured liquid and air, the light can be refracted at the gas-liquid interface of the measured liquid and air, and the brightness of the gas-liquid interface is obviously higher than that of the measured liquid at the gas-liquid interface when the concave liquid surface is observed horizontally due to refraction, so that the bottom of the concave liquid surface and the scale mark corresponding to the bottom of the concave liquid surface can be found easily, meanwhile, the black coating 5 can block the light entering the lower part of the measuring cylinder, the reading accuracy is ensured, and the accuracy of the water quality detection process is further ensured.

The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the diameter of the cavity 3 is 70-90% of the inner diameter of the cylinder 1. Other steps and parameters are the same as in the first embodiment.

The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the diameter of the cavity 3 is 80% of the inner diameter of the cylinder 1. Other steps and parameters are the same as in the first or second embodiment.

The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the height of the cavity 3 is 0.2-0.5 cm. Other steps and parameters are the same as in one of the first to third embodiments.

The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the height of the cavity 3 is 0.3 cm. Other steps and parameters are the same as in one of the first to fourth embodiments.

Example 1:

the embodiment is described with reference to fig. 1-2, the measuring cylinder for rapidly reading readings for water quality testing experiments in the embodiment is composed of a cylinder body 1 and a base 2, a cavity 3 is arranged in the base 2, and a reflective layer 4 is arranged on the bottom surface inside the cavity 3; the base 2 is a circular table, and the circumferential surface of the base 2 is covered with a black coating 5;

the cavity 3 is a horizontally arranged round cavity; the reflecting layer 4 is a silver reflecting layer obtained by a chemical silver plating method; the diameter of the cavity 3 is 80% of the inner diameter of the cylinder body 1; the height of the cavity 3 is 0.3 cm.

Claims

1. The utility model provides a quality of water testing experiments are with graduated flask of reading registration fast which characterized in that: the measuring cylinder for rapidly reading readings for water quality detection experiments is composed of a cylinder body (1) and a base (2), wherein a cavity (3) is arranged in the base (2), and a reflecting layer (4) is arranged on the bottom surface inside the cavity (3); the base (2) is a circular truncated cone, and the circumferential surface of the base (2) is covered with a black coating (5);

the cavity (3) is a horizontally arranged round cavity.

2. The measuring cylinder capable of rapidly reading readings for the water quality testing experiment as claimed in claim 1, wherein: the diameter of the cavity (3) is 70-90% of the inner diameter of the cylinder body (1).

3. The measuring cylinder capable of rapidly reading readings for the water quality testing experiment as claimed in claim 1, wherein: the diameter of the cavity (3) is 80% of the inner diameter of the cylinder body (1).

4. The measuring cylinder capable of rapidly reading readings for the water quality testing experiment as claimed in claim 1, wherein: the height of the cavity (3) is 0.2-0.5 cm.

5. The measuring cylinder capable of rapidly reading readings for the water quality testing experiment as claimed in claim 1, wherein: the height of the cavity (3) is 0.3 cm.