Synchronous quantitative sampler

Abstract

The utility model relates to the field of samplers, in particular to a synchronous quantitative sampler. A synchronous quantitative sampler comprises a frame, micro peristaltic pumps, meters, liquid outlet pipes, electronic valves, liquid pumping pipes and filter rings, the micro peristaltic pumps are fixedly connected to the left side and the right side of the frame, the meters are fixedly connected to the tops of the two micro peristaltic pumps, the liquid outlet pipes are fixedly connected to the front sides of the two micro peristaltic pumps, and the electronic valves are fixedly connected to the liquid pumping pipes. The two liquid outlet pipes are both provided with electronic valves, the rear sides of the two micro peristaltic pumps are both fixedly connected with liquid pumping pipes, the liquid pumping pipes are hoses, the tops of the two liquid pumping pipes are both fixedly connected with filtering rings, and the upper portions of the liquid pumping pipes are in sliding contact with the frame. The same sampling systems are arranged on the two sides, so that the two sample channels are started and stopped at the same time, the problem of sample inconsistency caused by time difference in a traditional device is effectively solved, and the comparability and the accuracy of experimental data are improved.

Description

Technical Field

[0001] This utility model relates to the field of samplers, and more particularly to a synchronous quantitative sampler. Background Technology

[0002] In various fields such as chemical engineering, pharmaceuticals, food processing, environmental monitoring, and laboratory analysis, sample collection is a crucial step for component detection, quality control, and data comparison. Especially in applications requiring simultaneous sampling of multi-component mixtures while maintaining consistent component proportions, traditional single-channel manual sampling methods are no longer sufficient to meet the demands for high-precision and high-efficiency sampling.

[0003] Currently, most sampling devices on the market have a single sampling tube structure. Operators need to take multiple samples from different locations of different samples or the same mixed sample, which is not only time-consuming and labor-intensive, but also prone to insufficient sample representativeness or imbalance due to human error. In addition, although some automated sampling devices have achieved timed and quantitative sampling functions, most are designed for a single channel and lack a linkage control mechanism between multiple sampling units, thus failing to achieve the functional goals of synchronous sampling, unified measurement, and overall control.

[0004] Therefore, a synchronous quantitative sampler needs to be designed to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of asynchronous sampling and low quantitative accuracy, this utility model provides a synchronous quantitative sampler.

[0006] The technical solution is as follows: A synchronous quantitative sampler includes a frame, micro peristaltic pumps, a meter, an outlet tube, an electronic valve, a suction tube, a filter ring, and a control panel. Micro peristaltic pumps are fixedly connected to both sides of the frame. A meter is fixedly connected to the top of each of the two micro peristaltic pumps. An outlet tube is fixedly connected to the front of each of the two micro peristaltic pumps. An electronic valve is installed on each of the two outlet tubes. A suction tube, which is a flexible tube, is fixedly connected to the rear of each of the two suction tubes. A filter ring is fixedly connected to the top of each suction tube, and the upper part of the suction tube slides in contact with the frame. A control panel is fixedly connected to the top of the frame. The control panel is electrically connected to the two micro peristaltic pumps, the two metering devices, and the two electronic valves.

[0007] Furthermore, it also includes a fixing frame, with fixing frames fixedly connected to the lower parts of both the left and right sides of the frame, and the fixing frames slidingly contacting the liquid extraction tube.

[0008] Furthermore, it also includes sampling cups and a weighing plate. The weighing plate is fixedly connected to the bottom of the inner side of the frame. Two sampling cups are placed at the bottom of the weighing plate. The two sampling cups are located directly below the center end of the two liquid outlet tubes. The control panel is electrically connected to the weighing plate.

[0009] Furthermore, it also includes a connecting plate, a cover plate, and a return spring. The two liquid outlet pipes are fixedly connected to the middle of their central ends, and the two liquid outlet pipes are slidably connected to the lower part of their central ends. A return spring is connected between the connecting plate and the cover plate on the same side. The cover plate on the same side is located directly above the sampling cup on the same side, and the cover plate is in contact with the sampling cup.

[0010] Furthermore, it also includes ultrasonic positioners, with ultrasonic positioners fixedly connected to both cover plates, and the control panel is electrically connected to the two ultrasonic positioners.

[0011] Furthermore, it also includes a water tank, a liquid filling pipe, a liquid pump, a connecting pipe, a flushing pipe, and an electrically controlled valve. The water tank is fixedly connected to the top of the inner side of the frame, and two liquid filling pipes are fixedly connected to the rear side of the frame. The two liquid filling pipes pass through the frame and are fixedly connected to the water tank. The upper part of the two liquid outlet pipes near the center end is fixedly connected to the connecting pipe, and the connecting pipe is interconnected with the liquid outlet pipe. A flushing pipe is fixedly connected between the two connecting pipes. The top of the flushing pipe is fixedly connected to the water tank, and a liquid pump is installed at the top of the flushing pipe. Electrically controlled valves are installed on both connecting pipes. The control panel is electrically connected to the liquid pump and the two electrically controlled valves.

[0012] The beneficial effects are as follows: 1. By setting up the same sampling system on both sides, this utility model ensures that the two sample channels start and stop at the same time, which effectively solves the problem of sample inconsistency caused by time difference in traditional devices and improves the comparability and accuracy of experimental data.

[0013] 2. This utility model uses a micro peristaltic pump in conjunction with a metering device and a precise electronic valve to achieve high-precision liquid sampling based on set values. At the same time, the weighing plate and ultrasonic positioner monitor the liquid volume, further ensuring the accuracy and repeatability of the sampling volume.

[0014] 3. This utility model, by setting up an automatic cleaning system consisting of a water tank, rinsing pipe, liquid pump and electric control valve, can thoroughly rinse key flow paths such as the liquid outlet pipe and connecting pipe after each sampling, avoid cross-contamination between different samples and ensure the purity of subsequent sampling.

[0015] 4. This utility model has a buffer mechanism consisting of a cover plate and a return spring at the bottom of the liquid outlet pipe, which can effectively prevent liquid splashing or evaporation during the sampling process, thus improving operational safety. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the frame, micro peristaltic pump, and meter of this utility model.

[0018] Figure 3This is a three-dimensional structural diagram of the connecting plate, cover plate, and return spring of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the liquid pump, connecting pipe, and flushing pipe of this utility model.

[0020] Component names and serial numbers in the diagram: 1-Frame, 2-Miniature peristaltic pump, 3-Meter, 4-Discharge pipe, 5-Electronic valve, 6-Suction pipe, 7-Filter ring, 8-Fixing bracket, 9-Sampling cup, 10-Weighing plate, 11-Control panel, 12-Connecting plate, 13-Cover plate, 14-Return spring, 15-Ultrasonic positioner, 16-Water tank, 17-Supply pipe, 18-Suction pump, 19-Connecting pipe, 20-Flushing pipe, 21-Electrically controlled valve. Detailed Implementation

[0021] Example: A synchronous quantitative sampler, such as Figures 1-4 As shown, the system includes a frame 1, miniature peristaltic pumps 2, a meter 3, an outlet pipe 4, an electronic valve 5, a suction pipe 6, a filter ring 7, and a control panel 11. Miniature peristaltic pumps 2 are bolted to both sides of the frame 1. A meter 3 is mounted on the top of each miniature peristaltic pump 2. An outlet pipe 4 is fixedly connected to the front of each miniature peristaltic pump 2, and an electronic valve 5 is mounted on each outlet pipe 4. A suction pipe 6, a flexible tube, is fixedly connected to the rear of each miniature peristaltic pump 2. A filter ring 7 is fixedly connected to the top of each suction pipe 6, and the upper part of the suction pipe 6 slides in contact with the frame 1. The control panel 11 is fixedly connected to the top of the frame 1, and the control panel 11 is electrically connected to the two miniature peristaltic pumps 2, the two metering devices 3, and the two electronic valves 5.

[0022] like Figure 1 and Figure 2 As shown, it also includes a fixing frame 8. The lower parts of the left and right sides of the frame 1 are fixedly connected to the fixing frame 8 by bolts, and the fixing frame 8 slides in contact with the liquid extraction tube 6.

[0023] like Figure 1 and Figure 3 As shown, it also includes a sampling cup 9 and a weighing plate 10. The weighing plate 10 is fixedly connected to the bottom of the inner side of the frame 1. Two sampling cups 9 are placed at the bottom of the weighing plate 10. The two sampling cups 9 are located directly below the center end of the two liquid outlet tubes 4. The control panel 11 is electrically connected to the weighing plate 10.

[0024] like Figure 3 and Figure 4As shown, it also includes a connecting plate 12, a cover plate 13, and a return spring 14. The two liquid outlet pipes 4 are fixedly connected to the middle of their central ends by the connecting plate 12. The two liquid outlet pipes 4 are slidably connected to the lower part of their central ends by the cover plate 13. A return spring 14 is connected between the connecting plate 12 and the cover plate 13 on the same side. The return spring 14 is sleeved on the liquid pipe 4. The cover plate 13 on the same side is located directly above the sampling cup 9 on the same side, and the cover plate 13 is in contact with the sampling cup 9.

[0025] like Figure 3 and Figure 4 As shown, it also includes an ultrasonic positioner 15. An ultrasonic positioner 15 is fixedly connected to both cover plates 13, and the control panel 11 is electrically connected to the two ultrasonic positioners 15.

[0026] When using this device for synchronous quantitative sampling, first place the device on a stable platform, ensuring that the frame 1 is stable and does not wobble. Then, remove the two suction tubes 6 from the frame 1 and the fixing bracket 8, and place them into the external container. Insert the filter rings 7 at the top of the two suction tubes 6 into the liquid container to be sampled, ensuring that there is no air leakage or blockage between the suction tubes 6 and the external container. Move the two cover plates 13 upwards to open them, compress the return springs, and place the two sampling cups 9 to be used on the weighing plate 10 at the bottom inside the frame 1. Then, extend the return springs to reset them. The sampling cups 9 are located directly below the two outlet tubes 4 near the center end, ensuring that the liquid can flow accurately into the cups. The cover plates 13 make slight contact with the top of the sampling cups 9 to prevent dust and fix them in place.

[0027] The operator activates the metering device 3, weighing plate 10, and ultrasonic positioner 15 via the control panel 11, sets the required sampling volume, sends a start command to the miniature peristaltic pumps 2 on both sides, and opens the electronic valve 5. The miniature peristaltic pumps 2 drive the suction tube 6 to extract liquid samples from the external container and deliver them to the sampling cup 9 through the outlet tube 4. The metering device 3 continuously monitors the fluid flow rate and feeds the data back to the control panel 11. At the same time, the weighing plate 10 measures the mass of the sample in the sampling cup 9, and the ultrasonic positioner 15 detects the liquid level. When the set value is reached... When determining the sampling volume, the micro peristaltic pump 2 and electronic valve 5 automatically shut off to stop liquid sampling. During the sampling process, the cover plate 13 lightly touches the mouth of the sampling cup 9 to prevent liquid splashing or evaporation. The filter ring 7 can effectively remove impurity particles in the sample to prevent blockage of the pipeline or affect subsequent test results. Then, the meter 3, weighing plate 10 and ultrasonic positioner 15 are turned off through the control panel 11. The cover plate 13 is opened and the sampling cup 9 is removed from the weighing plate 10. If sampling is required again, a new sampling cup 9 needs to be replaced before performing the above operations.

[0028] like Figure 2 , Figure 3 and Figure 4As shown, it also includes a water tank 16, a liquid filling pipe 17, a liquid pump 18, a connecting pipe 19, a flushing pipe 20, and an electric control valve 21. The water tank 16 is fixedly connected to the top of the inner side of the frame 1 by bolts. Two liquid filling pipes 17 are fixedly connected to the rear side of the frame 1. The two liquid filling pipes 17 pass through the frame 1 and are fixedly connected to the water tank 16. The upper part of the two liquid outlet pipes 4 near the center end is fixedly connected to the connecting pipe 19. The connecting pipe 19 communicates with the liquid outlet pipe 4. The flushing pipe 20 is fixedly connected between the two connecting pipes 19. The top of the flushing pipe 20 is fixedly connected to the water tank 16, and the top of the flushing pipe 20 is equipped with a liquid pump 18. The two connecting pipes 19 are equipped with electric control valves 21. The control panel 11 is electrically connected to the liquid pump 18 and the two electric control valves 21.

[0029] This device can also start the liquid pump 18 via the control panel 11, and simultaneously open the electronic valve 5 and the solenoid valve 21, so that the cleaning solution in the water tank 16 enters the connecting pipe 19 through the flushing pipe 20. The cleaning solution flows into the outlet pipe 4 and the liquid extraction pipe 6 through the connecting pipe 19 to flush the entire pipeline system. The pipeline is thoroughly cleaned to ensure that there are no residues between different batches of samples. Then, the liquid pump 18, electronic valve 5 and solenoid valve 21 are turned off via the control panel 11. If the cleaning solution in the water tank 16 is used up, it can be refilled through the two liquid filling pipes 17 on the rear side of the water tank 16. Then, the liquid extraction pipe 6 is put back on the frame 1 and the fixing bracket 8 for auxiliary support and to prevent it from occupying space.

Claims

1. A synchronous quantitative sampler, characterized in that: The device includes a frame (1), a micro peristaltic pump (2), a meter (3), an outlet pipe (4), an electronic valve (5), a suction pipe (6), a filter ring (7), and a control panel (11). The frame (1) is fixedly connected to the left and right sides of the frame (1). The top of the two micro peristaltic pumps (2) is fixedly connected to the meter (3). The front side of the two micro peristaltic pumps (2) is fixedly connected to the outlet pipe (4). The two outlet pipes (4) are equipped with electronic valves (5). The rear side of the two micro peristaltic pumps (2) is fixedly connected to the suction pipe (6). The suction pipe (6) is a flexible tube. The top of the two suction pipes (6) is fixedly connected to the filter ring (7). The upper part of the suction pipe (6) is in sliding contact with the frame (1). The top of the frame (1) is fixedly connected to the control panel (11). The control panel (11) is electrically connected to the two micro peristaltic pumps (2), the two meter (3), and the two electronic valves (5).

2. A synchronous quantitative sampler according to claim 1, characterized in that: It also includes a fixing frame (8), and the lower parts of the left and right sides of the frame (1) are fixedly connected to the fixing frame (8), and the fixing frame (8) slides in contact with the liquid extraction tube (6).

3. A synchronous quantitative sampler according to claim 2, characterized in that: Also includes There are sampling cups (9) and weighing plates (10). The weighing plates (10) are fixedly connected to the bottom of the inner side of the frame (1). Two sampling cups (9) are placed at the bottom of the weighing plates (10). The two sampling cups (9) are located directly below the center end of the two liquid outlet pipes (4). The control panel (11) is electrically connected to the weighing plates (10).

4. A synchronous quantitative sampler according to claim 3, characterized in that: It also includes a connecting plate (12), a cover plate (13) and a return spring (14). The two liquid outlet pipes (4) are fixedly connected to the middle of the center end of each of the two liquid outlet pipes (4). The cover plate (13) is slidably connected to the lower part of the two liquid outlet pipes (4) near the center end. The connecting plate (12) and the cover plate (13) on the same side are connected to the return spring (14). The cover plate (13) on the same side is located directly above the sampling cup (9) on the same side, and the cover plate (13) is in contact with the sampling cup (9).

5. A synchronous quantitative sampler according to claim 4, characterized in that: It also includes an ultrasonic positioner (15), and an ultrasonic positioner (15) is fixedly connected to both cover plates (13). The control panel (11) is electrically connected to the two ultrasonic positioners (15).

6. A synchronous quantitative sampler according to claim 5, characterized in that: It also includes a water tank (16), a liquid filling pipe (17), a liquid pump (18), a connecting pipe (19), a flushing pipe (20), and an electric control valve (21). The water tank (16) is fixedly connected to the top of the inner side of the frame (1). Two liquid filling pipes (17) are fixedly connected to the rear side of the frame (1). The two liquid filling pipes (17) pass through the frame (1) and are fixedly connected to the water tank (16). The two liquid outlet pipes (4) are fixedly connected to the upper part of the center end of each of them. The connecting pipes (19) are interconnected with the liquid outlet pipes (4). The flushing pipe (20) is fixedly connected between the two connecting pipes (19). The top of the flushing pipe (20) is fixedly connected to the water tank (16). The top of the flushing pipe (20) is equipped with a liquid pump (18). The two connecting pipes (19) are equipped with electric control valves (21). The control panel (11) is electrically connected to the liquid pump (18) and the two electric control valves (21).

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