Rogowski tester for foam amount of toothpaste

Abstract

The utility model discloses a toothpaste foam amount Rogowski tester, which comprises four double-layer graduated tubes arranged along the vertical direction, each double-layer graduated tube comprises an outer tube, an inner tube and an interlayer between the outer tube and the inner tube, an upper opening and a lower opening are formed on the inner tube, and a piston is arranged on the lower opening; the liquid storage tank is suspended in the center of the tops of the four double-layer graduated tubes; the four dropping pipettes are communicated with the lower part of the liquid storage tank along the horizontal direction, the end parts of the dropping pipettes are provided with dropping heads which are bent by 90 degrees, and the dropping heads extend into the inner tube and are vertical to the section of the inner tube; the liquid adding pump is communicated with the bottom of the liquid storage tank through a liquid adding pipe; and the four groups of circulating pipelines are circularly communicated with the hollow interlayer of the graduated tube in a one-to-one correspondence manner and are jointly connected into the constant-temperature water tank. Compared with a traditional method, the Rogowski tester for the foam amount of the toothpaste has higher testing efficiency and more accurate and reliable results.

Description

Technical Field

[0001] The utility model relates to a Roche measuring instrument, in particular to a Roche measuring instrument for measuring the foam content of toothpaste. Background Art

[0002] Foam is a phenomenon in which air is dispersed in liquid. Foam power refers to the ability of detergent solution to generate foam. The formation of foam helps to carry dirt, but there is no fixed relationship between the amount of foam and the ability to remove dirt. Under certain washing conditions, high foam is required, while under other conditions, low foam or even no foam is required.

[0003] Roche foam meter is an instrument specially used to measure the foam stability and persistence of surfactants. It simulates various actual situations by controlling the injection time of the reagent to evaluate the stability of the foam. The instrument mainly consists of a syringe (containing the test agent), a syringe drive mechanism and a control system. In the presence of a surfactant, the solution is dropped downward from a certain vertical position, and foam activity occurs in the center of the graduated measuring tube. The foam liquid level will remain still or change slowly for a period of time, indicating that the foam stability has reached a certain standard. The Roche foam meter can be used to test the foam performance of various liquids (such as detergents, lubricants, etc.) and provide an important reference for their application.

[0004] Roche foam tester uses a single tube test mechanism, which may not cover all factors that may affect foam stability, resulting in limitations in test results. If multiple single tube tests are performed, more time and cost are required. Especially for the test of toothpaste foam, the ingredients of toothpaste are complex, including a variety of surfactants and other additives. These ingredients may have a complex effect on the stability of the foam, and a single tube test may not be able to fully consider these factors. Utility Model Content

[0005] In order to solve the shortcomings of the above technology, the utility model provides a toothpaste foam volume Roche tester.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is a toothpaste foam volume Roche tester, comprising:

[0007] Four double-layer graduated tubes arranged vertically, including an outer tube, an inner tube and a hollow layer between the outer tube and the inner tube, the inner tube is formed with an upper opening and a lower opening, and a piston is installed on the lower opening;

[0008] The liquid storage tank is suspended at the top center of the four double-layer graduated tubes;

[0009] Four dripping tubes connected to the lower part of the liquid storage tank in the horizontal direction, the ends of the dripping tubes have dripping heads bent at 90 degrees, the dripping heads extend into the inner tube and are perpendicular to the cross section of the inner tube;

[0010] A liquid adding pump is connected to the bottom of the liquid storage tank through a liquid adding pipe;

[0011] Four groups of circulation pipelines are circulated and connected to the interlayer of the graduated tube in a one-to-one correspondence and are connected to the constant temperature water tank in common.

[0012] Furthermore, the four double-layer graduated tubes are distributed in a cross shape.

[0013] Furthermore, the liquid adding pump is located in the center of the four graduated tubes, and the liquid adding pump is connected upward to the bottom of the liquid storage tank through a liquid adding pipe arranged vertically.

[0014] Furthermore, the axis of the dropper head coincides with the axis of the double-layer graduated tube.

[0015] Furthermore, the input end of the liquid adding pump is connected to a container for providing the liquid to be tested.

[0016] Furthermore, each group of circulation pipelines includes an inlet pipe and an outlet pipe, the inlet pipe is connected to the upper part of the interlayer, and the outlet pipe is connected to the lower part of the interlayer.

[0017] The utility model discloses a toothpaste foam quantity Roche tester. Compared with the traditional single-tube testing method, the toothpaste foam quantity Roche tester provided by the utility model has the following advantages and benefits:

[0018] A multi-tube testing environment is formed, using four double-layer calibrated tubes in a cross-distributed layout, to test multiple foam samples at the same time, improve test efficiency, and be able to more comprehensively consider the effects of different factors of different samples on foam stability.

[0019] Automatic control: the liquid adding pump is connected to the liquid storage tank through the liquid adding pipe, which realizes automatic pumping of liquid and can accurately control the speed and amount of liquid dripping to ensure the accuracy of the test.

[0020] Constant temperature circulation, four sets of circulation pipelines are connected to the interlayer of the graduated tube respectively, and connected to the constant temperature water tank together. The constant temperature water tank can control the temperature during the foam test, maintain a stable test environment, and further improve the accuracy and reliability of the test.

[0021] Accurate measurement: the design of the dropper allows the liquid to drip vertically, avoiding interference from foam. The axis of the dropper head coincides with the axis of the double-layer graduated tube, which can accurately measure the height of the foam.

[0022] The experimental results are reliable. Through the above multi-tube test and automatic control, under the conditions of constant temperature and precise measurement, more reliable experimental results can be obtained, providing an important reference for the evaluation of toothpaste foam performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1The structure of the utility model Figure 1 .

[0024] Figure 2 The structure of the utility model Figure 2 .

[0025] Figure 3 for Figure 1 Side view of.

[0026] In the figure: 100, double-layer graduated tube; 101, outer tube; 102, inner tube; 103, interlayer; 104, piston; 200, liquid storage tank; 300, dropper; 301, dropper head; 400, liquid adding pump; 401, liquid adding tube; 500, circulation pipeline; 501, inlet pipe; 502, outlet pipe; 600, constant temperature water tank. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Toothpaste foam volume Roche tester, including: Figure 1-3 The four double-layer calibrated tubes 100 are arranged vertically and are distributed in a cross shape, forming a multi-tube measurement system. The double-layer calibrated tube 100 includes an outer tube 101, an inner tube 102, and a hollow layer 103 between the outer tube 101 and the inner tube 102. The inner tube 102 is formed with an upper opening and a lower opening, and a piston 104 is installed on the lower opening.

[0029] It also includes a liquid storage tank 200 and four droppers 300 connected to the lower part of the liquid storage tank 200 in the horizontal direction. The liquid storage tank 200 is suspended at the top center of the four double-layer calibrated tubes 100 and connected to the four double-layer calibrated tubes 100 at the same time. The liquid storage tank is used to store the liquid for the experiment, which is the toothpaste solution to be tested in this embodiment. The end of the dropper 300 has a dropper head 301 bent at 90°, and the dropper head 301 extends into the inner tube 102 and is perpendicular to the cross section of the inner tube 102; therefore, the liquid can be accurately dripped into the inner tube of the calibrated tube. The axis of the dropper head 301 coincides with the axis of the double-layer calibrated tube 100. The design of the dropper head ensures that the liquid can be dripped vertically to avoid the interference of foam.

[0030] The apparatus also includes a liquid adding pump 400, which is connected to the bottom of the liquid storage tank 200 through a liquid adding pipe 401; the liquid adding pump 400 is located in the center of the four graduated tubes, and the liquid adding pump 400 is connected to the bottom of the liquid storage tank 200 through a liquid adding pipe 401 arranged vertically. It is used to pump the liquid in the liquid storage tank to the dropper, and then drip into the graduated tube, so that the dripping speed and amount of the liquid can be controlled to ensure the accuracy of the experiment. The input end of the liquid adding pump 400 is connected to a container for providing the toothpaste solution to be tested.

[0031] It also includes four groups of circulation pipelines 500, which are circulated and connected to the hollow layer 103 of the calibrated tube in a one-to-one manner and are connected to the constant temperature water tank 600. The circulation pipeline is connected to the hollow layer of the calibrated tube to keep the liquid temperature in the calibrated tube constant. In this embodiment, by connecting the constant temperature water tank, it can be ensured that the temperature is stable at 40±0.5℃ during the experiment, and the impact on the measurement results is minimized. Specifically, each group of circulation pipelines 500 includes an inlet pipe 501 and an outlet pipe 502. The inlet pipe 501 is connected to the upper part of the hollow layer 103, and the outlet pipe 502 is connected to the lower part of the hollow layer 103, forming a constant temperature circulation passage.

[0032] When in use, open the constant temperature water tank and stabilize it at 40±0.5℃. Rinse the inner wall of the graduated tube with distilled water, and rinse it completely. Then rinse the tube wall with the test solution, and rinse it completely. Close the piston, start the liquid adding pump, and inject the toothpaste solution of the same scale through the liquid adding tube 40. Note that this toothpaste solution should be preheated to 40℃. Note that a tube clamp can be set on the dropper to facilitate the control of the conduction of the dropper. Open the tube clamp on the dropper to allow the toothpaste solution to flow down. When the solution in the dropper runs out, immediately measure the highest and lowest values ​​of the foam height, take their average value, and take the average value of the experiment as the final result.

[0033] Compared with the traditional single-tube testing method, the toothpaste foam volume Roche tester provided by the utility model has the following advantages and benefits:

[0034] A multi-tube testing environment is formed, using four double-layer calibrated tubes in a cross-distributed layout, to test multiple foam samples at the same time, improve test efficiency, and be able to more comprehensively consider the effects of different factors of different samples on foam stability.

[0035] Automatic control: the liquid adding pump is connected to the liquid storage tank through the liquid adding pipe, which realizes automatic pumping of liquid and can accurately control the speed and amount of liquid dripping to ensure the accuracy of the test.

[0036] Constant temperature circulation, four sets of circulation pipelines are connected to the interlayer of the graduated tube respectively, and connected to the constant temperature water tank together. The constant temperature water tank can control the temperature during the foam test, maintain a stable test environment, and further improve the accuracy and reliability of the test.

[0037] Accurate measurement: the design of the dropper allows the liquid to drip vertically, avoiding interference from foam. The axis of the dropper head coincides with the axis of the double-layer graduated tube, which can accurately measure the height of the foam.

[0038] The experimental results are reliable. Through the above multi-tube test and automatic control, under the conditions of constant temperature and precise measurement, more reliable experimental results can be obtained, providing an important reference for the evaluation of toothpaste foam performance.

[0039] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A toothpaste foam tester, characterized in that: include: Four double-layer graduated tubes (100) arranged vertically, comprising an outer tube (101), an inner tube (102), and a hollow layer (103) between the outer tube (101) and the inner tube (102); the inner tube (102) is formed with an upper opening and a lower opening, and a piston (104) is installed on the lower opening; A liquid storage tank (200) is suspended at the top center of the four double-layer graduated tubes (100); Four dripping tubes (300) connected to the lower part of the liquid storage tank (200) in the horizontal direction, the ends of the dripping tubes (300) having dripping heads (301) bent at 90 degrees, the dripping heads (301) extending into the inner tube (102) and being perpendicular to the cross section of the inner tube (102); A liquid adding pump (400) is connected to the bottom of the liquid storage tank (200) through a liquid adding pipe (401); Four groups of circulation pipelines (500) are circulated and connected to the interlayer (103) of the calibrated tube in a one-to-one correspondence and are connected to the constant temperature water tank (600) in common.

2. The toothpaste foam volume Roche tester according to claim 1, characterized in that: The four double-layer graduated tubes (100) are distributed in a cross shape.

3. The toothpaste foam tester according to claim 1 or 2, characterized in that: The liquid adding pump (400) is located in the center of the four graduated tubes, and the liquid adding pump (400) is connected upward to the bottom of the liquid storage tank (200) through a liquid adding pipe (401) arranged vertically.

4. The toothpaste foam volume Roche tester according to claim 3, characterized in that: The axis of the dropper head (301) coincides with the axis of the double-layer graduated tube (100).

5. The toothpaste foam volume Roche tester according to claim 4, characterized in that: The input end of the liquid adding pump (400) is connected to a container for providing the liquid to be tested.

6. The toothpaste foam volume Roche tester according to claim 5, characterized in that: Each group of circulation pipelines (500) includes an inlet pipe (501) and an outlet pipe (502), wherein the inlet pipe (501) is connected to the upper part of the interlayer (103), and the outlet pipe (502) is connected to the lower part of the interlayer (103).

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