CN216499439U - Accurate constant volume volumetric flask suitable for different specifications - Google Patents

Abstract

The utility model relates to the technical field of volumetric flask design, in particular to an accurate constant volume volumetric flask suitable for different specifications. The volumetric flask include main bottle body (1), neck (2) and cut off, neck (2) and main bottle body (1) integrated into one piece, be provided with scale (3) on neck (2), the cut off including last cut off (4) and cut off (5) down, last cut off (4) and cut off (5) down and all set up in the inside of main bottle body (1), the second cut off (402) and fourth cut off and pass through control lever (6) control rotation, control lever (6) stretch out from neck (2), cut off and can divide into the volumetric flask of different ranges with main bottle body (1) to pour out through the drainage mouth and reduce liquid pollution, the scale mark makes things convenient for people to observe from the bottom more.

Description

Accurate constant volume volumetric flask suitable for different specifications

Technical Field

The utility model relates to the technical field of volumetric flask design, in particular to an accurate constant volume volumetric flask suitable for different specifications.

Background

The volumetric flask is also called a measuring flask, is a thin-neck pear-shaped flat-bottom volumetric flask, is provided with a ground glass stopper, and has a marked line on the neck, which indicates that when the liquid concave liquid level is tangent to the marked line on the neck of the volumetric flask at the indicated temperature, the volume of the solution is just equal to the volume marked on the flask. The volumetric flask is marked with temperature, volume and scale marks. Volumetric flasks are precision instruments for preparing solutions of precisely defined concentrations of a substance, and when the volume in the flask reaches the marked point at a specified temperature, the volume is the indicated volume, which is typically a "measuring in" volumetric flask. However, two marked lines are also marked, and the upper line shows the measured volume and is often used with a pipette. Volumetric flasks come in various sizes, including small ones of 5ml, 25ml, 50ml and 100ml, and large ones of 250ml, 500ml, 1000ml and 2000 ml. The method is mainly used for preparing standard solution and accurate dilution solution by a direct method and preparing sample solution. The conventional volumetric flask should be checked for water leakage before use, and the volumetric flask cannot be used for storing liquid, otherwise the accuracy of the volumetric flask is affected. A typical volumetric flask may be mishandled with excess or contaminated fluid. In daily use, it is sometimes necessary to measure the liquid accurately, for example, when a baby is infused with powdered milk, the health of the baby is affected by too much or too little water. In case of illness, an accurate volumetric flask is also required to dissolve the drug, which otherwise affects the effect of the drug. The utility model adopts the partition to divide the volumetric flask into different measuring ranges, can select different measuring ranges according to requirements so as to accurately measure the volume, and can pour out liquid from the drainage port so as to reduce pollution.

SUMMERY OF THE UTILITY MODEL

The utility model provides an accurate constant volume volumetric flask suitable for different specifications, which comprises a main flask body 1, a neck part 2 and a partition, wherein the neck part 2 and the main flask body 1 are integrally formed, the neck part 2 is provided with scales 3 for displaying the liquid volume of the volumetric flask, the partition comprises an upper partition 4 and a lower partition 5, the upper partition 4 and the lower partition 5 are both arranged in the main flask body 1 and are arranged in a staggered manner, the volume of the volumetric flask is divided into three parts, the upper partition 4 consists of a first partition 401 and a second partition 402, the first partition 401 and the main flask body 1 are integrally formed, the second partition 402 can be moved and can be arranged below the first partition 401 or be arranged in parallel with the first partition 401, and the main flask body 1 is sealed from the inside to form a closed space; the lower partition 5 is composed of a third partition and a fourth partition, the third partition and the main bottle body 1 are integrally formed, the fourth partition is movable and can be arranged below the third partition and also can be arranged in parallel with the third partition, the main bottle body 1 is sealed from the inside to form a closed space, the second partition 402 and the fourth partition are respectively controlled by a control rod 6, a control button of the control rod 6 is pressed, the second partition 402 can be independently rotated out from the bottom of the first partition 401 and is positioned on the same plane with the first partition 401, and the first partition 401 is hermetically connected, so that the upper partition 4 and the main bottle body 1 form a sealed space; meanwhile, the control button of the control rod 6 can independently rotate the fourth partition out of the bottom of the third partition, and the fourth partition and the third partition are on the same plane and are in sealing connection with the first partition, so that the lower partition 5 and the main bottle body 1 form a sealed space; a control rod 6 extends from the neck 2.

Preferably, the bottom of the main bottle body 1 is further provided with a drainage port 7, the drainage port 7 is sealed by a rubber plug 8, and redundant liquid can be poured out from the drainage port 7.

Preferably, the main bottle body 1 is circular or oval.

Preferably, the actual volume is obtained by subtracting the volume of the control rod 6 from the volume of the space formed by the upper surface of the upper partition 4, the main bottle body 1 and the neck 2.

Preferably, the volume of the space formed by the upper surface of the lower partition 5, the main bottle body 1 and the neck 2 minus the volume of the control rod 6 and the volume of the upper partition 4 minus are the actual volume.

Preferably, the second partition 402 and the fourth partition are provided with sealing rings to prevent liquid leakage.

Preferably, the main bottle body 1, the neck portion 2 and the partition are made of polyethylene or glass, and volumetric flasks of different materials can be selected according to the properties of the liquid.

The utility model has the beneficial effects that: the utility model provides accurate constant volume volumetric flasks suitable for different specifications, a main flask body 1 can be divided into volumetric flasks with different measuring ranges through partition, liquid pollution is reduced through a drainage port, and scale marks are convenient for people to observe from the bottom.

Drawings

FIG. 1 is a front view of an accurate volumetric flask suitable for different specifications

FIG. 2 is a schematic view of a partition

1. The main bottle body 2 is a neck; 3. calibration; 4. an upper partition; 401. a first partition; 402. a second partition; 5. a lower partition; 6. a control unit; 7. a drainage opening; 8. rubber plug

Detailed Description

The utility model will be further described with reference to the drawings and the detailed description, without thereby restricting the scope of the utility model to the described embodiments.

Embodiment I, an accurate constant volume volumetric flask

As shown in the attached figure 1 of the specification, the utility model provides an accurate constant volume volumetric flask suitable for different specifications, the volumetric flask comprises a main flask body 1, a neck part 2 and a partition, the neck part 2 and the main flask body 1 are integrally formed, the neck part 2 is provided with scales 3 for displaying the liquid volume of the volumetric flask, the partition comprises an upper partition 4 and a lower partition 5, the upper partition 4 and the lower partition 5 are both arranged in the main flask body 1 and are arranged in a staggered manner to divide the volume of the volumetric flask into three parts, the upper partition 4 comprises a first partition 401 and a second partition 402, the first partition 401 and the main flask body 1 are integrally formed, the second partition 402 can be moved and can be arranged below the first partition 401 or parallel to the first partition 401, and the main flask body 1 is sealed from the inside to form a closed space; the lower partition 5 is composed of a third partition and a fourth partition, the third partition and the main bottle body 1 are integrally formed, the fourth partition is movable and can be arranged below the third partition and also can be arranged in parallel with the third partition, the main bottle body 1 is sealed from the inside to form a closed space, the second partition 402 and the fourth partition are respectively controlled by a control rod 6, a control button of the control rod 6 is pressed, the second partition 402 can be independently rotated out from the bottom of the first partition 401 and is positioned on the same plane with the first partition 401, and the first partition 401 is hermetically connected, so that the upper partition 4 and the main bottle body 1 form a sealed space; meanwhile, the control button of the control rod 6 can independently rotate the fourth partition out of the bottom of the third partition, and the fourth partition and the third partition are on the same plane and are in sealing connection with the first partition, so that the lower partition 5 and the main bottle body 1 form a sealed space; a control rod 6 extends from the neck 2. The bottom of the main bottle body 1 is also provided with a drainage port 7, the drainage port 7 is sealed by a rubber plug 8, and redundant liquid can be poured out from the drainage port 7. The main bottle body 1 is oval. The actual volume is obtained by subtracting the volume of the control rod 6 from the volume of the space formed by the upper surface of the upper partition 4, the main bottle body 1 and the neck 2. The volume of the space formed by the upper surface of the lower partition 5, the main bottle body 1 and the neck 2 subtracts the volume of the control rod 6, and then the volume of the upper partition 4 is subtracted to be the actual volume. The second partition 402 and the fourth partition are provided with sealing rings to prevent liquid leakage. The main bottle body 1, the neck 2 and the partition are made of polyethylene and glass, and volumetric flasks of different materials can be selected according to the properties of liquid.

Embodiment II, use method of accurate constant volume volumetric flask

When liquid is measured, the second partition 402 and the fourth partition of the upper partition 4 or/and the lower partition 5 are opened through the control rod 6 according to requirements, so that redundant liquid is blocked, the sealing ring can prevent the liquid from leaking, and the liquid is poured out through the drainage port 7 after the liquid is measured.

The above description is only one specific example of the present invention, and therefore all configurations, features, and the like described in the patent according to the present invention are included in the scope of the present invention.

Claims (5)

1. The accurate constant volume volumetric flask suitable for different specifications is characterized by comprising a main flask body (1), a neck part (2) and a partition, wherein the neck part (2) and the main flask body (1) are integrally formed, scales (3) are arranged on the neck part (2), the partition comprises an upper partition (4) and a lower partition (5), the upper partition (4) and the lower partition (5) are both arranged inside the main flask body (1), the upper partition (4) consists of a first partition (401) and a second partition (402), the first partition (401) and the main flask body (1) are integrally formed, the second partition (402) is movable, can be arranged below the first partition (401) and can also be arranged in parallel with the first partition (401), and the main flask body (1) is sealed from the inside to form a closed space; lower wall (5) constitute by third wall and fourth wall, the third wall and main bottle body (1) integrated into one piece, the fourth wall portable, can arrange the below of third wall in, also can cut off parallel arrangement with the third, form confined space with main bottle body (1) from internal seal, second wall (402) and fourth wall pass through control lever (6) control rotation, control lever (6) are followed neck (2) and are stretched out.

2. The volumetric flask according to claim 1, characterized in that the bottom of the main flask body (1) is further provided with a drainage port (7), and the drainage port (7) is sealed by a rubber plug (8).

3. Volumetric flask according to claim 1, characterized in that the main flask (1) is provided with a circular, oval shape.

4. Volumetric flask according to claim 1, characterized in that said second partition (402) and fourth partition are provided with sealing rings.

5. Volumetric flask according to claim 1, characterized in that the main body (1), the neck (2) and the partitions are made of polyethylene or glass.

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