A sample automatic quantitative dilution device
By designing an automatic sample quantitative dilution device, using a three-coordinate slider, a weighing sensor and a multi-channel pipette, batch dilution and double verification of samples are achieved, which solves the problem of measurement errors during sample dilution and improves dilution accuracy and efficiency.
Patent Information
- Application Number
- CN202420976142.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
In sample analysis, measurement errors are easily triggered during the dilution process of high-concentration samples, especially when there are too many samples or multiple dilutions are required, manual operation is difficult to ensure efficiency and accuracy.
A sample automatic quantitative dilution device is designed to achieve batch dilution of samples through a combination of a three-coordinate slider, a weighing sensor, a multi-channel pipette and a control unit, and perform dual-factor verification of capacity and quality.
The device can efficiently and accurately complete sample dilution, which improves efficiency and accuracy compared to manual operation, reduces measurement errors, and improves the repeatability and accuracy of the test.
Smart Images
Figure CN222748384U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dilution devices, in particular to an automatic quantitative sample dilution device. Background Art
[0002] In sample analysis, it is often encountered that the sample concentration is higher than the detection range of the method. Therefore, according to the analysis methods and quality control requirements of different analysis items, the sample dilution can be studied and discussed. The original sample, intermediate sample and post-analysis sample can be used for dilution. The dilution multiple can be determined by calculating the basic data accumulated daily, visual observation and simple test methods.
[0003] How to reduce the measurement errors caused by the sample dilution process is the key to laboratory quality control. In actual work, experimenters often use manual methods to perform manual operations on high-concentration samples. When the number of samples is large, or when the samples are diluted multiple times, the efficiency and accuracy are difficult to grasp, which affects the test results such as repeatability and accuracy. Utility Model Content
[0004] The utility model provides an automatic quantitative dilution device for samples, which dilutes samples in batches and has dual verification of capacity and quality, thereby ensuring the dilution accuracy of samples and having the characteristics of high efficiency and high accuracy compared with manual operation.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample automatic quantitative dilution device, comprising: a box body, wherein conveyor belts are provided on both sides of the box body and an operation window is provided at the front, and a three-coordinate slide is provided inside the box body corresponding to the top of the conveyor belt; a lifting arm, wherein a card slot is provided horizontally at the bottom of the lifting arm, and the top is connected to the three-coordinate slide through a weighing sensor; a multi-channel pipette, wherein the multi-channel pipette is connected to the three-coordinate slide through a vertically placed electric linear slide; a liquid box tank and a tip box, wherein the liquid box tank and the tip box are arranged side by side on one side of the conveyor belt close to the operation window; a control unit, wherein the control unit is arranged on the top of the box body, and the conveyor belt, the three-coordinate slide, the weighing sensor, the electric linear slide and the multi-channel pipette are electrically connected to the control unit respectively, and the control unit is provided with a setting panel.
[0006] Preferably, the weighing sensor is located at the bottom of the three-coordinate slide, and a horizontal suspension beam is connected to the bottom of the weighing sensor; the lifting arms are arranged in pairs and are respectively connected to the two ends of the suspension beam, and the two card slots are arranged opposite to each other; the electric linear slide is located in the center of the three-coordinate slide, and the multi-channel pipette is located between the two lifting arms.
[0007] Preferably, guide platforms are respectively provided on both sides of the box body corresponding to the conveyor belt, and a position sensor corresponding to the conveyor belt is provided on one side of the guide platform, and the position sensor is electrically connected to the control unit.
[0008] Preferably, the X-axis track of the three-coordinate slide is connected to the top of the inner walls on both sides of the box.
[0009] Preferably, a plurality of pipette tips are arranged in an array at the bottom of the multi-channel pipette.
[0010] Preferably, the operating window is provided with a box door, and the top of the box door is hingedly matched with the box body.
[0011] The beneficial effect of the utility model is that during the sample dilution process, the technician places the diluent container and the pipette tip in the liquid box tank and the pipette tip box respectively, and then puts the test tube box adapted to the device on the conveyor belt, starts the device through the control unit, and inputs the dilution parameters, and the test tube box containing the test tubes arranged in an array is sent to the inside of the box body with the conveyor belt for positioning, at this time, the three-coordinate slide table descends and is positioned at one end of the test tube box, and then moves horizontally to make the card slot of the lifting arm engage with the edge of the test tube box, and then the three-coordinate slide table rises, and collects the overall weight of the test tube box through the weighing sensor, and then the three-coordinate slide table is used to measure the weight of the test tube box. The standard slide moves out of the test tube box, and controls the multi-channel pipette to extract the pipette tip in the pipette tip box, and then moves the multi-channel pipette to the diluent container to extract the diluent, and then injects the diluent into each test tube in the test tube box. After reaching the set amount, the three-coordinate slide measures the weight of the test tube box again by lifting the crane arm to obtain the total amount of diluent. The operator replaces the diluent container with the sample container, and then enters the dilution program through the control unit. At this time, the three-coordinate slide moves the multi-channel pipette to extract the sample according to the amount in the sample container and inject it into each test tube of the test tube box, thereby completing the sample dilution operation in batches. The device dilutes the samples in batches, and ensures the dilution accuracy through the dual verification of capacity and quality. Compared with manual operation, it has the characteristics of high efficiency and high precision. The multi-channel pipette adopts the existing structure, such as 96-channel pipette, etc., thereby reducing the research and development cost of the equipment. The box door is a transparent structure, which is convenient for running through the internal dilution process and the use of samples, and also plays an isolation role in the working process to reduce interference from the outside world. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 It is a side view of the internal structure of the utility model;
[0014] Figure 2 It is a top view of the local structure of the utility model;
[0015] Figure 3 It is a schematic diagram of the structure of the three-coordinate slide table of the utility model.
[0016] In the figure: 1. Box; 2. Conveyor belt; 3. Three-coordinate slide; 4. Lifting arm; 5. Card slot; 6. Weighing sensor; 7. Multi-channel pipette; 8. Electric linear slide; 9. Liquid box slot; 10. Tip box; 11. Control unit; 12. Lifting beam; 13. Guide platform; 14. Position sensor; 15. X-axis track; 16. Pipette tip; 17. Box door; 18. Test tube box; 19. Sample container. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] according to Figure 1 , Figure 2 , Figure 3 As shown, a sample automatic quantitative dilution device comprises: a box body 1, wherein conveyor belts 2 are provided on both sides of the box body 1 and an operation window is provided at the front, and a three-coordinate slide 3 is provided inside the box body 1 corresponding to the top of the conveyor belt; a lifting arm 4, wherein a card slot 5 is provided horizontally at the bottom of the lifting arm 4, and the top is connected to the bottom of the three-coordinate slide 3 through a weighing sensor 6; a multi-channel pipette 7, wherein the multi-channel pipette 7 is connected to the side of the three-coordinate slide 3 through a vertically arranged electric linear slide 8; a liquid box tank 9 and a suction head box 10, wherein the liquid box tank 9 and the suction head box 10 are arranged in parallel on one side of the conveyor belt 2 close to the operation window; a control unit 11, wherein the control unit 11 is arranged on the top of the box body 1, and the conveyor belt 2, the three-coordinate slide 3, the weighing sensor 6, the electric linear slide 8 and the multi-channel pipette 7 are electrically connected to the control unit 11 respectively, and the control unit 11 is provided with a setting panel. The X-axis track 15 of the three-coordinate slide 3 is connected to the top of the inner wall on both sides of the box 1. In addition, guide platforms 13 are respectively provided on both sides of the box 1 corresponding to the conveyor belt 2, and a position sensor 14 corresponding to the conveyor belt 2 is provided on one side of the guide platform 13, and the position sensor 14 is electrically connected to the control unit 11.
[0019] Through the above arrangement, during the sample dilution process, the technician places the diluent container and the pipette tip in the liquid box tank 9 and the pipette tip box 10 respectively, and then puts the test tube box 18 adapted to the device on the conveyor belt 2, starts the device through the control unit 11, and inputs the dilution parameters. The test tube box 18 containing the test tubes arranged in an array is sent to the inside of the box body 1 along the conveyor belt 2 for positioning. At this time, the three-coordinate slide 3 descends and is positioned at one end of the test tube box 18, and then moves horizontally to make the card slot 5 of the lifting arm 4 engage with the edge of the test tube box 18, and then the three-coordinate slide 3 rises, and the overall weight of the test tube box 18 is collected by the weighing sensor 6, and then the three-coordinate slide 3 is used to measure the weight of the test tube box 18. 3 translates and exits the test tube box 18, and controls the multi-channel pipette 7 to extract the pipette tip in the pipette tip box 10, and then moves the multi-channel pipette 7 to the diluent container to extract the diluent, and then injects the diluent into each test tube in the test tube box 18. After reaching the set amount, the three-coordinate slide 3 measures the weight of the test tube box 18 again by lifting the suspension arm 4, so as to obtain the total amount of the diluent. The operator replaces the diluent container with the sample container 19, and then enters the dilution program through the control unit 11. At this time, the three-coordinate slide 3 moves the multi-channel pipette 7 to extract the sample according to the amount in the sample container 19, and injects it into each test tube of the test tube box 18, so as to complete the sample dilution operation in batches. The device dilutes the samples in batches, and ensures the dilution accuracy through the dual verification of capacity and quality. Compared with manual operation, it has the characteristics of high efficiency and high accuracy.
[0020] The weighing sensor 6 is located at the bottom of the three-coordinate slide 3, and the bottom of the weighing sensor 6 is connected to a horizontal suspension beam 12; the lifting arms 4 are arranged in pairs and are respectively connected to the two ends of the suspension beam 12, and the two card slots 5 are arranged opposite to each other; the electric linear slide 8 is located in the center of the three-coordinate slide 3, and the multi-channel pipette 7 is located between the two lifting arms 4. Among them, the bottom of the multi-channel pipette 7 is equipped with a plurality of pipette tips 16 arranged in an array.
[0021] In this arrangement, the multi-channel pipette 7 adopts an existing structure, such as a 96-channel pipette, etc., thereby reducing the development cost of the equipment.
[0022] The operating window is provided with a box door 17 , and the top of the box door 17 is hingedly matched with the box body 1 .
[0023] In the above arrangement, the box door 17 is a transparent structure, which is convenient for viewing the internal dilution process and the use of the sample, and also plays an isolation role during the working process to reduce interference from the outside.
[0024] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A sample automatic quantitative dilution device, characterized in that ,include: A box body (1), wherein conveyor belts (2) are provided on both sides of the box body (1) and penetrate therethrough, an operation window is provided at the front, and a three-coordinate slide table (3) is provided inside the box body (1) corresponding to the top of the conveyor belt; A lifting arm (4), wherein a slot (5) is horizontally arranged at the bottom of the lifting arm (4), and the top of the lifting arm (4) is connected to the three-coordinate slide table (3) via a weighing sensor (6); A multi-channel pipette (7), wherein the multi-channel pipette (7) is connected to the three-coordinate slide (3) via a vertically arranged electric linear slide (8); A liquid box tank (9) and a suction head box (10), wherein the liquid box tank (9) and the suction head box (10) are arranged side by side on a side of the conveyor belt (2) close to the operation window; A control unit (11), wherein the control unit (11) is arranged on the top of the box (1), and the conveyor belt (2), the three-coordinate slide (3), the weighing sensor (6), the electric linear slide (8) and the multi-channel pipette (7) are respectively electrically connected to the control unit (11), and the control unit (11) is provided with a setting panel.
2. The automatic quantitative dilution device for samples according to claim 1, characterized in that: The weighing sensor (6) is located at the bottom of the three-coordinate slide (3), and the bottom of the weighing sensor (6) is connected to a horizontal suspension beam (12); the lifting arms (4) are arranged in pairs and are respectively connected to the two ends of the suspension beam (12), and the two card slots (5) are arranged opposite to each other; the electric linear slide (8) is located at the center of the three-coordinate slide (3), and the multi-channel pipette (7) is located between the two lifting arms (4).
3. The automatic quantitative dilution device for samples according to claim 1, characterized in that: Guide platforms (13) are respectively provided on both sides of the box body (1) corresponding to the conveyor belt (2), and a position sensor (14) corresponding to the conveyor belt (2) is provided on one side of the guide platform (13), and the position sensor (14) is electrically connected to the control unit (11).
4. The automatic quantitative dilution device for samples according to claim 1, characterized in that: The X-axis track (15) of the three-coordinate slide table (3) is connected to the top of the inner walls on both sides of the box body (1).
5. The automatic quantitative sample dilution device according to claim 1, characterized in that: The bottom of the multi-channel pipette (7) is provided with a plurality of pipetting tips (16) arranged in an array.
6. The automatic quantitative dilution device for samples according to claim 1, characterized in that: The operating window is provided with a box door (17), and the top of the box door (17) is hingedly matched with the box body (1).