Wiping-free density bottle

Abstract

The utility model relates to a wiping-free density bottle which is characterized by mainly comprising a liquid storage big belly, a residual liquid pool, a liquid guide pipe, a ground thermometer and a bottle neck. After the thermometer is inserted into the liquid storage big belly, the fixed volume is 25.0 mL, the residual liquid pool is located above the liquid storage big belly and connected with the liquid storage big belly through the bottle neck, the ground thermometer is inserted into the middle of the bottle neck, and the liquid guide pipe is located beside the ground thermometer and communicated with the liquid storage big belly and the residual liquid pool. The utility model solves the problem that internal liquid overflows to pollute the bottle body after the thermometer is inserted during density measurement, and the hand only contacts with the residual liquid pool during weighing, so that the influence of the temperature of the hand on the liquid to be measured is avoided. The utility model has the advantages of simple structure, low cost and long service life, and can greatly improve the speed and accuracy of the experiment process.

Description

Technical field

[0001] The utility model belongs to the technical field of laboratory devices and relates to a wipe-free density bottle. [Background Technology]

[0002] At present, when the laboratory measures the density of liquids, the pycnometer used is filled with the liquid to be tested and a thermometer is inserted. The internal liquid overflows from the side of the thermometer, causing the outer wall of the density bottle to be contaminated by the liquid to be tested. Before weighing, the liquid on the outside of the pycnometer must be wiped dry, otherwise the weighing result will be biased, resulting in a large error in the measurement result. In addition, during the wiping process, the temperature of the hand will affect the temperature of the liquid inside the density bottle, causing the liquid to expand and overflow, affecting the measurement result.

[0003] Therefore, there is an urgent need to develop a wipe-free density bottle to reduce the error caused by unclean wiping of the density bottle and hand temperature on the measurement results and improve the measurement accuracy. [Summary of the invention]

[0004] The main purpose of the utility model is to prevent the liquid to be measured from overflowing and contaminating the outer wall of the density bottle after the thermometer is inserted during the laboratory liquid density determination process, and to avoid the influence of the hand temperature on the temperature of the liquid to be measured, thereby reducing errors and improving experimental accuracy.

[0005] The technical solutions adopted by this utility model are as follows:

[0006] A wipe-free density bottle is characterized in that it comprises five parts: a liquid storage belly (1), a residual liquid pool (2), a liquid guide tube (3), a ground-mouth thermometer (4), and a neck (5). After the ground-mouth thermometer (4) is inserted into the liquid storage belly (1), the fixed volume is 25.0 mL. The upper part of the liquid storage belly (1) is the residual liquid pool (2), which is connected to the neck (5). The ground-mouth thermometer (4) can be inserted into the center of the neck (5). The liquid guide tube (3) is located next to the ground-mouth thermometer (4).

[0007] The liquid storage belly (1) and the residual liquid pool (2) of the wipe-free density bottle are made of XRB1 heat-insulating material. The liquid storage belly (1) is tapered as a whole. The residual liquid pool (2) is a hemispherical shape with a diameter of 4 cm and a circle with a diameter of 1 cm at the bottom. It is connected to the liquid storage belly through a bottleneck (5). The bottleneck (5) is 2 cm high and hollow with an inner diameter of 1 cm. The hollow inner wall is a frosted structure with an outer diameter of 2 cm. A liquid guide tube (3) with a diameter of 0.1 cm is opened at a distance of 0.2 cm from the outer extension, connecting the liquid storage belly (1) and the residual liquid pool (2). The ground-mouth thermometer (4) is a frosted structure at a distance of 2 cm to 4 cm from the mercury ball and is embedded in the hollow inner wall of the bottleneck (5).

[0008] The beneficial effects of the utility model are as follows: by improving the structure and material of the density bottle, when inserting the ground-mouth thermometer (4), the overflowed liquid to be measured flows into the residual liquid pool (2), and the residual liquid pool is pinched with fingers to pour out the overflowed liquid to be measured, thereby reducing the process of wiping the density bottle, and at the same time avoiding the influence of the hand temperature on the liquid to be measured, thereby improving the accuracy.

Brief Description of the Drawings

[0009] Figure 1 A three-dimensional schematic diagram of the present utility model.

[0010] Among them, 1 is a liquid storage belly; 2 is a residual liquid pool; 3 is a liquid guide tube; 4 is a ground-mouth thermometer; 5 is a bottleneck. [Specific implementation method]

[0011] In order to more clearly understand the present invention, specific usage will be described in detail below with reference to the accompanying drawings and specific implementation cases. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0012] Example 1

[0013] As attached Figure 1 As shown, the liquid to be tested and the density bottle are placed in a 20°C constant temperature incubator. When the liquid to be tested reaches 20°C, pour it into the density bottle and shake it gently to remove the bubbles attached to the inner wall of the density bottle. Then, slowly insert the ground-mouth thermometer (4). The excess liquid to be tested will flow from the liquid guide tube (3) into the residual liquid pool (2). When the ground-mouth thermometer (4) is fitted with the inner wall of the bottleneck (5), pinch the residual liquid pool (2) with your fingers, pour out the overflowed liquid to be tested, and immediately put it into the analytical balance for weighing. Record the weighing result. After the measurement is completed, pull out the ground-mouth thermometer (4), pour out the liquid to be tested, wash it with distilled water, invert it to let the distilled water flow out, and dry it for later use.

[0014] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wipe-free density bottle, characterized in that: The invention comprises five parts: a liquid storage pot (1), a residual liquid pool (2), a liquid guide tube (3), a ground-mouth thermometer (4), and a bottleneck (5). The liquid storage pot (1) has a liquid storage volume of 25.0 mL after the ground-mouth thermometer (4) is inserted. The upper part of the liquid storage pot (1) is the residual liquid pool (2), which is connected to the bottleneck (5). The ground-mouth thermometer (4) can be inserted into the center of the bottleneck (5). The liquid guide tube (3) is located next to the ground-mouth thermometer (4).

2. A wipe-free density bottle according to claim 1, characterized in that: The liquid storage belly (1) is made of XRB1 heat-insulating material and is tapered as a whole.

3. A wipe-free density bottle according to claim 1, characterized in that: The residual liquid pool (2) is made of XRB1 heat-insulating material, is hemispherical with a diameter of 4 cm, and has a bottom that is a circle with a diameter of 1 cm. It is connected to the liquid storage tank through a bottleneck (5).

4. A wipe-free density bottle according to claim 1, characterized in that: The bottleneck (5) is 2 cm high and hollow with an inner diameter of 1 cm. The inner wall of the hollow is a frosted structure. The outer diameter of the bottleneck (5) is 2 cm. A liquid guide tube (3) with a diameter of 0.1 cm is opened at a distance of 0.2 cm from the outer extension, connecting the liquid storage belly (1) and the residual liquid pool (2).

5. A wipe-free density bottle according to claim 1, characterized in that: The ground-mouth thermometer (4) has a frosted structure at a distance of 2 cm to 4 cm from the mercury ball and is embedded in the hollow inner wall of the bottleneck (5).

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