Multi-liquid mixing device

Abstract

The utility model discloses a kind of multi-liquid mixing devices, comprising: multi-channel selector valve group, gas source and several parallelly arranged liquid bottles, the liquid inlet of several liquid outlet pipes respectively embeds in corresponding liquid bottle, and the liquid outlet of liquid outlet pipe is located above measuring cup;Water drop counting sensor is located between the liquid outlet of liquid outlet pipe and measuring cup;A pressure sensor is located between the multi-channel selector valve group and gas source, and the gas outlet of the gas outlet pipe connected with liquid bottle is located above liquid level in liquid bottle, and the liquid inlet of liquid outlet pipe is located below liquid level in liquid bottle;The outlet of mixing cup located below measuring cup is connected with the inlet of a multi-way valve, and the outlet of the multi-way valve is connected with mixing cup by a liquid discharge pipe.The utility model multi-liquid mixing device can accurately mix multiple liquids, and the mixing ratio remains stable after long-term repeated use, avoids mutual contamination between multiple liquids, has no liquid interference, and has low cost and low failure.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid mixing, and in particular to a multi-liquid mixing device. Background Technology

[0002] In existing technologies, precise mixing of multiple liquids is achieved by using flow meters to measure the amount of liquid involved in the mixture, or by combining peristaltic pumps and syringe pumps for quantitative mixing. However, both of these methods are slow, consume large amounts of reagents, and their accuracy and stability need improvement. Therefore, overcoming these technical problems has become a focus of effort for those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-liquid mixing device that can precisely and quantitatively mix multiple liquids and maintain stable mixing ratios after long-term repeated use. It also avoids cross-contamination between multiple liquids, eliminates any liquid cross-contamination, and is low in cost and has a low failure rate.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-liquid mixing device, comprising: a multi-channel selector valve group, a gas source, and several liquid bottles arranged in parallel, wherein the air inlet of the multi-channel selector valve group is connected to the gas source through an air inlet pipe, and several air outlets of the multi-channel selector valve group are respectively sealed and connected to the corresponding liquid bottles through several air outlet pipes. Several outlet tubes each have their own inlet embedded in the corresponding liquid bottle, and the outlet of the outlet tube is located above the measuring cup; A water droplet counting sensor is located between the outlet of the liquid outlet tube and the metering cup; A pressure sensor is located between the multi-channel selector valve group and the gas source. The gas outlet of the gas outlet pipe connected to the liquid bottle is located above the liquid surface in the liquid bottle, and the liquid inlet of the liquid outlet pipe is located below the liquid surface in the liquid bottle. The outlet of a mixing cup located below a metering cup is connected to the inlet of a multi-way valve, the outlet of which is connected to the mixing cup via a drain pipe.

[0005] The following are further improvements to the above technical solution: 1. The above solution also includes an air pump, which is connected to an air source.

[0006] 2. In the above scheme, the inner cavity of the metering cup in contact with the liquid is shaped like an inverted cone.

[0007] 3. In the above scheme, the multi-channel selection valve group is composed of several single-way valves.

[0008] 4. In the above scheme, the liquid bottle includes a reagent bottle and a cleaning solution bottle, and another outlet of the multi-way valve is connected to a cleaning solution drain pipe.

[0009] 5. In the above scheme, a large tube is installed on the outlet tube located between the liquid bottle and the metering cup.

[0010] 6. In the above scheme, the measuring cup is located above several liquid bottles.

[0011] 7. In the above scheme, the number of mixing cups is at least 2, and a one-way valve and a two-way valve are provided between the mixing cups and the multi-way valve.

[0012] 8. In the above scheme, the two-way valve is integrated into the multi-way valve.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model relates to a multi-liquid mixing device, wherein several air outlets of a multi-channel selector valve assembly are respectively sealed to corresponding liquid bottles via air outlet pipes; the inlets of several liquid outlet pipes are respectively embedded in the corresponding liquid bottles, with the liquid outlets of the outlet pipes located above the metering cup; a water droplet counting sensor is located between the liquid outlet of the outlet pipe and the metering cup; the air outlet of the air outlet pipe connected to the liquid bottle is located above the liquid surface in the liquid bottle, and the liquid inlet of the outlet pipe is located below the liquid surface in the liquid bottle; the outlet of a mixing cup located below the metering cup is connected to the inlet of a multi-way valve, and the outlet of the multi-way valve is connected to the mixing cup via a drain pipe; through... The air valve controls the air pressure in each pipeline to blow air into the liquid bottle, accurately dispensing the liquid into the measuring cup in a precise metering manner. The liquid does not need to pass through the valve, reducing the number of pipelines through which the liquid passes. The droplet counting sensor accurately calculates the number of droplets, enabling high-precision metering of multiple liquids. Even after long-term repeated use, the mixing ratio remains accurate and stable, avoiding cross-contamination between multiple liquids and eliminating any liquid cross-contamination interference. It is low in cost, has low failure rate, and improves the speed and efficiency of liquid dispensing. Furthermore, it uses pressure sensors and droplet counting sensors to precisely control the size and consistency of droplets, further improving the accuracy of metering, eliminating reagent waste, reducing reagent consumption, and reducing waste discharge.

[0014] 2. In this utility model, the inner cavity of the metering cup below the outlet of the outlet pipe is shaped like an inverted cone to ensure that water droplets do not splash. Furthermore, the liquid bottles include reagent bottles and cleaning solution bottles, and another outlet of the multi-port valve is connected to a cleaning solution drain pipe, enabling automatic cleaning of the pipes and metering cups, avoiding cross-contamination between each dispensing and improving the quality of the dispensing. Additionally, a large-diameter tube is installed on the outlet pipe between the liquid bottle and the metering cup to prevent the introduction of air bubbles, which could affect the accuracy of the detection. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure of the multi-liquid mixing device of this utility model.

[0016] In the attached diagrams: 1. Multi-channel selector valve assembly; 2. Gas source; 3. Liquid bottle; 31. Reagent bottle; 32. Cleaning solution bottle; 33. Water bottle; 4. Gas outlet pipe; 5. Liquid outlet pipe; 6. Metering cup; 7. Water droplet counting sensor; 8. Mixing cup; 9. Transfer pipe; 10. Multi-way valve; 11. Large tube; 12. Air pump; 13. Pressure sensor; 141. Drain pipe; 142. Cleaning solution drain pipe; 15. Two-way valve. Detailed Implementation

[0017] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0018] Example 1: A multi-liquid mixing device includes: a multi-channel selector valve group 1, a gas source 2, and several liquid bottles 3 arranged in parallel. The air inlet of the multi-channel selector valve group 1 is connected to the gas source 2 through an air inlet pipe, and several air outlets of the multi-channel selector valve group 1 are respectively sealed to the corresponding liquid bottles 3 through several air outlet pipes 4. Several liquid outlet tubes 5 each have their own inlet embedded in the corresponding liquid bottle 3, and the outlet of the liquid outlet tube 5 is located above the metering cup 6; The water droplet counting sensor 7 is located between the outlet of the liquid outlet tube 5 and the metering cup 6; A pressure sensor 13 is located between the multi-channel selector valve group 1 and the air source 2. The air outlet of the air outlet pipe 4 connected to the liquid bottle 3 is located above the liquid surface in the liquid bottle 3, and the liquid inlet of the liquid outlet pipe 5 is located below the liquid surface in the liquid bottle 3. The outlet of a mixing cup 8 located below a metering cup 6 is connected to the inlet of a multi-way valve 10, and the outlet of the multi-way valve 10 is connected to the mixing cup 8 through a drain pipe 141.

[0019] It also includes an air pump 12, which is connected to an air source 2.

[0020] The aforementioned multi-channel selector valve group 1 consists of several single-way valves, which can be multiple single-way valves combined with a multi-way pipe, or single-way valves used alone, or multiple-way valves used alone. The number of passages in the multi-channel selector valve group 1 is not limited.

[0021] The liquid bottle 3 mentioned above includes a reagent bottle 31 and a cleaning solution bottle 32, and another outlet of the multi-port valve is connected to a cleaning solution drain pipe 142.

[0022] A large tube 11 is provided on the outlet tube 5 located between the liquid bottle 3 and the metering cup 6 to prevent the introduction of air bubbles.

[0023] The aforementioned measuring cup 6 is positioned above several liquid bottles 3 to prevent excessive siphoning and loss of control over the number of water droplets. The thinner the wall thickness of the vertical outlet, the better, and the inner diameter should be relatively moderate to ensure the consistency of water droplets.

[0024] Example 2: A multi-liquid mixing device includes: a multi-channel selector valve group 1, a gas source 2, and several liquid bottles 3 arranged in parallel. The air inlet of the multi-channel selector valve group 1 is connected to the gas source 2 through an air inlet pipe, and several air outlets of the multi-channel selector valve group 1 are respectively sealed to the corresponding liquid bottles 3 through several air outlet pipes 4. Several liquid outlet tubes 5 each have their own inlet embedded in the corresponding liquid bottle 3, and the outlet of the liquid outlet tube 5 is located above the metering cup 6; The water droplet counting sensor 7 is located between the outlet of the liquid outlet tube 5 and the metering cup 6; A pressure sensor 13 is located between the multi-channel selector valve group 1 and the air source 2. The air outlet of the air outlet pipe 4 connected to the liquid bottle 3 is located above the liquid surface in the liquid bottle 3, and the liquid inlet of the liquid outlet pipe 5 is located below the liquid surface in the liquid bottle 3. The outlet of a mixing cup 8 located below a metering cup 6 is connected to the inlet of a multi-way valve 10, and the outlet of the multi-way valve 10 is connected to the mixing cup 8 through a drain pipe 141.

[0025] It also includes an air pump 12, which is connected to an air source 2.

[0026] The aforementioned multi-channel selector valve group 1 consists of several single-way valves, which can be multiple single-way valves combined with a multi-way pipe, or single-way valves used alone, or multiple-way valves used alone. The number of passages in the multi-channel selector valve group 1 is not limited.

[0027] The liquid bottle 3 mentioned above includes a reagent bottle 31 and a cleaning solution bottle 32, and another outlet of the multi-port valve is connected to a cleaning solution drain pipe 142.

[0028] The aforementioned measuring cup 6 is positioned above several liquid bottles 3 to prevent excessive siphoning and loss of control over the number of water droplets. The thinner the wall thickness of the vertical outlet, the better, and the inner diameter should be relatively moderate to ensure the consistency of water droplets.

[0029] The inner cavity of the measuring cup 6 that comes into contact with the liquid is shaped like an inverted cone. This design ensures that water droplets will not splash when they fall.

[0030] The number of the above-mentioned mixing cups 8 is at least two, and a two-way valve 15 is provided between the mixing cups 8 and the multi-way valve 10. This two-way valve 15 is integrated into the multi-way valve 10, which can be configured to mix liquids composed of various different types of solutions, thereby improving efficiency and scalability.

[0031] When using the above-mentioned multi-liquid mixing device, air pressure is controlled by air valves to blow air into the liquid bottle, accurately and quantitatively delivering the liquid into the measuring cup. The liquid does not need to pass through the valve, reducing the number of pipelines through which the liquid passes. The droplet counting sensor accurately calculates the number of droplets. It can accurately mix multiple liquids quantitatively and maintain stable mixing ratios after long-term repeated use, avoiding cross-contamination between multiple liquids and eliminating any liquid cross-contamination interference. It is low in cost, has low failure rate, and improves the speed and efficiency of liquid dispensing. Furthermore, it accurately controls the size and consistency of droplets through pressure sensors and droplet counting sensors, further improving quantitative accuracy, eliminating reagent waste, reducing reagent consumption, and reducing waste discharge. Furthermore, the inner cavity of the metering cup below the outlet of the liquid outlet tube is shaped like an inverted cone to ensure that water droplets do not splash. Also, the liquid bottle includes a reagent bottle and a cleaning solution bottle, and another outlet of the multi-way valve is connected to a cleaning solution drain pipe, which realizes automatic cleaning of the pipes and metering cups it passes through, avoiding cross-contamination between each liquid dispensing and improving the quality of liquid dispensing. In addition, a large tube is provided on the liquid outlet tube between the liquid bottle and the metering cup to avoid introducing air bubbles and affecting the accuracy of the test.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-liquid mixing device, characterized in that: include: The multi-channel selector valve group (1), the gas source (2) and several liquid bottles (3) are arranged in parallel. The air inlet of the multi-channel selector valve group (1) is connected to the gas source (2) through the air inlet pipe, and several air outlets of the multi-channel selector valve group (1) are respectively sealed to the corresponding liquid bottles (3) through several air outlet pipes (4). Several liquid outlet tubes (5) have their respective inlets embedded in the corresponding liquid bottles (3), and the outlets of the liquid outlet tubes (5) are located above the metering cup (6); A water droplet counting sensor (7) is located between the outlet of the liquid outlet tube (5) and the metering cup (6); A pressure sensor (13) is located between the multi-channel selector valve group (1) and the gas source (2). The outlet of the gas pipe (4) connected to the liquid bottle (3) is located above the liquid surface in the liquid bottle (3). The inlet of the liquid pipe (5) is located below the liquid surface in the liquid bottle (3). The outlet of a mixing cup (8) located below a metering cup (6) is connected to the inlet of a multi-way valve (10), the outlet of which is connected to the mixing cup (8) via a drain pipe (141).

2. The multi-liquid mixing device according to claim 1, characterized in that: It also includes an air pump (12) which is connected to an air source (2).

3. The multi-liquid mixing device according to claim 1, characterized in that: The inner cavity of the measuring cup (6) in contact with the liquid is shaped like an inverted cone.

4. The multi-liquid mixing apparatus according to any one of claims 1 to 3, characterized in that: The multi-channel selector valve group (1) consists of several single-way valves.

5. The multi-liquid mixing apparatus according to any one of claims 1 to 3, characterized in that: The liquid bottle (3) includes a reagent bottle (31) and a cleaning solution bottle (32), and another outlet of the multi-port valve is connected to a cleaning solution drain pipe (142).

6. The multi-liquid mixing apparatus according to any one of claims 1 to 3, characterized in that: A large tube (11) is provided on the outlet tube (5) located between the liquid bottle (3) and the metering cup (6).

7. The multi-liquid mixing apparatus according to any one of claims 1 to 3, characterized in that: The measuring cup (6) is located above several liquid bottles (3).

8. The multi-liquid mixing apparatus according to any one of claims 1 to 3, characterized in that: The number of mixing cups (8) is at least two, and a one-way valve (15) is provided between the mixing cups (8) and the multi-way valve (10).

9. The multi-liquid mixing device according to claim 8, characterized in that: The two-way valve (15) is integrated on the multi-way valve (10).

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