Automatic liquid sampling device

Abstract

The utility model relates to the technical field of automatic liquid sample injectors, and discloses an automatic liquid sample injection device which comprises a base, threaded rods are arranged on the two sides of the upper end of the interior of the base, threaded blocks are arranged on one sides of the exteriors of the two threaded rods in a threaded mode, and second placement seats are fixedly connected to the two sides of the upper end of the threaded block on one side. And a plurality of second placing holes are uniformly formed in the outer sides of the upper ends of the two second placing seats at intervals. According to the device disclosed by the utility model, automatic liquid sample injection of a sample is realized through the electric telescopic rod and the fourth servo motor, manual operation is reduced, after detection, the sampling needle rotates to the other side for cleaning, and meanwhile, the cleaned sample injection needle on the other side can be used for extracting a new sample, so that parallel processing of detection and cleaning is realized, and the analysis efficiency is remarkably improved; in addition, due to the design of the placing seats on the two sides, when one side is used for detecting and cleaning, the other side can be used for discharging and discharging, and the overall efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic liquid sampler technology, and in particular to an automatic liquid sampler device. Background Technology

[0002] In the existing technology, most automatic liquid samplers typically use a syringe to inject the sample first, followed by cleaning. These two processes cannot be performed simultaneously. Since the injection and cleaning are sequential, after one sample is tested, the cleaning process must be completed before the next sample can be tested. This serial processing method results in low overall analysis efficiency.

[0003] Therefore, those skilled in the art have provided an automated liquid sampler, the main function of which is to improve the efficiency and accuracy of sample processing, thereby addressing the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic liquid sampler. This device achieves automatic liquid sample injection through an electric telescopic rod and a third servo motor, reducing manual operation. After detection, the sampling needle rotates to the other side for cleaning, while the cleaned needle on the other side can be used for new sample extraction, enabling parallel processing of detection and cleaning, significantly improving analytical efficiency. In addition, the design of the two-sided placement seats allows for material feeding and unloading on the other side while detection and cleaning are being performed on one side, further improving overall efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic liquid sampling device includes a base. Threaded rods are provided on both sides of the upper interior of the base. Threaded blocks are threaded onto both of the threaded rods. At least one second placement seat is fixedly and parallelly arranged on the upper end of one of the threaded blocks. Multiple second placement holes are evenly arranged in an arc shape around the center of the second placement seat. A cleaning fluid tube is disposed inside each of the multiple second placement holes. At least one detection unit is provided on the upper end of the other threaded block. The detection unit includes a first servo motor. A connecting seat is fixedly connected to the output end of each of the first servo motors. Multiple springs are evenly spaced and fixedly connected to the outer side of the upper end of the connecting seat. A first placement seat is fixedly connected to the upper end of each of the multiple springs. Multiple first placement holes are evenly spaced on the outer side of the upper ends of two of the first placement seats. A reagent tube is disposed inside each of the multiple first placement holes. A second servo motor is disposed in the center of the interior of each connecting seat. A cam is fitted around the output end of each of the second servo motors.

[0007] A fourth servo motor is located at the center of the base. The output end of the fourth servo motor is fixedly connected to a support column. The support column is rotatably mounted on the base. Multiple electric telescopic rods are evenly spaced in a ring at the upper end of the support column. The lower ends of the multiple electric telescopic rods extend into the interior of the rotating seat and are fixedly connected to a connecting plate. An injection needle is provided on the multiple connecting plates. A detector is provided at the upper end of the interior of the support column.

[0008] Through the above technical solution, the device realizes automatic liquid injection of samples through electric telescopic rod and fourth servo motor, reducing manual operation. After detection, the sampling needle is rotated to the other side for cleaning. At the same time, the cleaning needle on the other side can be used to extract new samples, realizing parallel processing of detection and cleaning, which significantly improves the analysis efficiency. In addition, the design of the two-sided placement seat allows the other side to be used for feeding and unloading while detection and cleaning are carried out on one side, further improving the overall efficiency.

[0009] Furthermore, the upper end of the base is provided with sliding grooves on both sides, and the two threaded blocks are slidably connected inside the sliding grooves;

[0010] With the above technical solution, by opening grooves on both sides of the upper end of the base, the threaded block can slide and connect in the groove, so that the upper placement seat can remain stable during movement.

[0011] Furthermore, the interior of the first placement hole at the upper end of each of the two first placement seats is provided with an anti-slip sleeve, and the inner wall of each of the anti-slip sleeves is in close contact with the reagent tube.

[0012] By using the above technical solution, an anti-slip sleeve is installed inside the placement hole of the first placement seat, which can effectively improve the fit between the reagent tube and the placement seat and prevent the reagent tube from sliding during operation.

[0013] Furthermore, a gear is fitted on the outer side of each of the two threaded rods, a toothed belt is fitted on the outer side of the two gears, and a third servo motor is fixedly connected to one end face of one of the threaded rods.

[0014] Through the above technical solution, gears and toothed belts are sleeved on the outside of the threaded rod, making the power transmission more efficient and stable. The third servo motor on one side can precisely control the movement of the threaded rod, thereby achieving high-precision drive and enabling the threaded blocks on both sides to move simultaneously.

[0015] Furthermore, a control panel is provided at one corner of one side end face of the base, and the control panel is electrically connected to the first servo motor, the second servo motor, the third servo motor, the fourth servo motor, and the electric telescopic rod.

[0016] By using the above technical solution, a control panel is set up and electrically connected to multiple servo motors and electric telescopic poles, allowing operators to monitor and adjust the device status in real time through the control panel, thus achieving more flexible operation and management.

[0017] Furthermore, a rotating groove is provided in the middle of the upper end of the base, and a rotating ring is fixedly connected to the outer side of the lower end of the support column, and the rotating ring is slidably connected inside the rotating groove.

[0018] The above technical solution involves opening a rotating groove and setting a rotating ring in the middle of the base, which ensures that the rotation of the support column remains stable and improves the accuracy of automatic liquid injection.

[0019] Furthermore, both ends of the two threaded rods are rotatably connected to the base;

[0020] The above technical solution, with its rotating connection between the two ends of the threaded rod and the base, allows the device to move more flexibly while reducing the risk of failure due to uncoordinated movement.

[0021] Furthermore, all of the aforementioned connecting plates are slidably connected to the rotating seat;

[0022] The above technical solution enables the connecting plate to move smoothly through sliding connection, thereby improving the stability during sample injection and cleaning.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes an automatic liquid sampling device. During use, an electric telescopic rod drives the injection needle to descend into the reagent tube for sample extraction and testing. After testing, a fourth servo motor drives the support column to rotate, causing the sample needle to rotate to the other side and descend into the cleaning solution tube for cleaning. Meanwhile, the injection needle on the other side, having completed cleaning, can rotate to one side of the reagent tube for sample extraction and testing. This allows for simultaneous testing and cleaning, avoiding the waiting time required for cleaning before the next sample test in traditional methods, significantly improving overall analytical efficiency. Furthermore, empty first and second placement seats are also provided on the other side of the first and second placement seats, allowing for material feeding and discharging on the other side while testing and cleaning are performed on one side, further enhancing overall analytical efficiency.

[0025] 2. The present invention proposes an automatic liquid sample injection device. Before detection, the device drives the first placement seat to oscillate left and right and up and down through the coordinated operation of the first servo motor and the second servo motor. This combination helps to better mix the sample in the reagent tube, effectively prevents the sample from precipitating or separating, thereby improving the accuracy of the analysis. Attached Figure Description

[0026] Figure 1 This is an isometric view of an automatic liquid sampler proposed in this utility model;

[0027] Figure 2 This is an isometric view of the rotating seat of an automatic liquid sampler proposed in this utility model;

[0028] Figure 3 This is a side sectional view of an automatic liquid sampler proposed in this utility model;

[0029] Figure 4 This is a front sectional view of an automatic liquid sampler proposed in this utility model;

[0030] Figure 5 This is a top sectional view of an automatic liquid sampler proposed in this utility model;

[0031] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0032] Legend:

[0033] 1. Base; 2. Threaded rod; 3. Threaded block; 4. First servo motor; 5. Connecting seat; 6. Spring; 7. First placement seat; 8. Reagent tube; 9. Second servo motor; 10. Cam; 11. Anti-slip sleeve; 12. Gear; 13. Toothed belt; 14. Third servo motor; 15. Rotating seat; 16. Electric telescopic rod; 17. Connecting plate; 18. Injection needle; 19. Second placement seat; 20. Cleaning fluid tube; 21. Control panel; 22. Slide groove; 23. Fourth servo motor; 24. Rotating ring; 25. Rotating groove; 26. First placement hole; 27. Second placement hole; 28. Support column; 29. ​​Detector. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1-6This utility model provides a specific embodiment: an automatic liquid sampling device, including a base 1. Threaded rods 2 are provided on both sides of the upper inner end of the base 1. Threaded blocks 3 are threaded onto one side of the outer side of each threaded rod 2. Second placement seats 19 are fixedly connected to both sides of the upper end of one threaded block 3. Multiple second placement holes 27 are evenly spaced on the outer sides of the upper ends of the two second placement seats 19. Cleaning fluid tubes 20 are provided inside each of the multiple second placement holes 27. First servo motors 4 are provided on both sides of the upper inner end of the other threaded block 3. Connecting seats 5 are fixedly connected to the output ends of the two first servo motors 4. The outer sides of the upper ends of the two connecting seats 5 are evenly spaced... Multiple springs 6 are fixedly connected, and a first placement seat 7 is fixedly connected to the upper end of each spring 6. Multiple first placement holes 26 are evenly spaced on the outer side of the upper end of the two first placement seats 7. A reagent tube 8 is installed inside each of the multiple first placement holes 26. A second servo motor 9 is installed in the middle of the interior of each of the two connecting seats 5. A cam 10 is sleeved on the outside of the output end of each of the two second servo motors 9. The cam is driven to rotate by the second servo motor 9, thereby realizing the up and down movement of the first placement seat. At the same time, under the action of the spring, it can play a buffering role, ensuring that the first placement seat maintains stable oscillation and effectively preventing the sample from precipitating or separating.

[0036] A fourth servo motor 23 is provided in the middle of the upper part of the base 1. The output end of the fourth servo motor 23 is fixedly connected to a support column 28. Multiple electric telescopic rods 16 are evenly spaced on the outer side of the upper end of the support column 28. The lower ends of the multiple electric telescopic rods 16 extend into the interior of the rotating seat 15 and are fixedly connected to a connecting plate 17. A sample injection needle 18 is provided on one side of the interior of the multiple connecting plates 17. A detector 29 is provided at the upper end of the interior of the support column 28.

[0037] The device achieves automatic liquid injection of samples through an electric telescopic rod 16 and a fourth servo motor 23, reducing manual operation. After detection, the sampling needle rotates to the other side for cleaning, while the cleaning injection needle 18 on the other side can extract new samples, realizing parallel processing of detection and cleaning, which significantly improves analysis efficiency. In addition, the design of the two-sided placement seat allows for material feeding and unloading on the other side while detection and cleaning are being performed on one side, further improving overall efficiency.

[0038] The upper end of the base 1 has grooves 22 on both sides. The two threaded blocks 3 are slidably connected inside the grooves 22. By opening grooves 22 on both sides of the upper end of the base 1, the threaded blocks 3 can be slidably connected inside the grooves 22, so that the upper placement seat can remain stable during movement. After the detection and cleaning on one side is completed, the first placement seat 7 and the second placement seat 19 are moved by the third servo motor 14, so that the first placement seat 7 and the second placement seat 19 after detection and cleaning are moved to one side for unloading, while the first placement seat 7 and the second placement seat 19 that have not been detected enter the lower end of the rotating seat 15 for detection, which further improves the overall analysis efficiency.

[0039] Anti-slip sleeves 11 are provided inside the first placement holes 26 at the upper ends of the two first placement seats 7. The inner walls of the multiple anti-slip sleeves 11 are tightly fitted to the reagent tubes 8. The anti-slip sleeves 11 inside the placement holes of the first placement seats 7 can effectively improve the fit between the reagent tubes 8 and the placement seats and prevent the reagent tubes 8 from sliding during operation. Gears 12 are fitted on one side of the two threaded rods 2, and toothed belts 13 are fitted on the outside of the two gears 12. A third servo motor 144 is fixedly connected to one end face of one threaded rod 2. The gears 12 and toothed belts 13 fitted on the outside of the threaded rod 2 make the power transmission more efficient. The system is stable and efficient. The third servo motor 14 on one side can precisely control the movement of the threaded rod 2, thereby achieving high-precision drive and enabling the threaded blocks 3 on both sides to move simultaneously. A control panel 21 is set at one corner of one end face of the base 1. The control panel 21 is electrically connected to the first servo motor 4, the second servo motor 9, the third servo motor 14, the fourth servo motor 23, and the electric telescopic rod 16. The control panel 21 is set up and electrically connected to multiple servo motors and the electric telescopic rod 16, so that the operator can monitor and adjust the status of the device in real time through the control panel 21, and achieve more flexible operation and management.

[0040] A rotating groove 25 is provided in the middle of the upper end of the base 1. A rotating ring 24 is fixedly connected to the outer side of the lower end of the support column 28. The rotating ring 24 is slidably connected inside the rotating groove 25. The rotating groove 25 and rotating ring 24 in the middle of the base 1 make the rotation of the support column 28 stable and improve the accuracy of automatic liquid injection. Both ends of the two threaded rods 2 are rotatably connected to the base 1. The rotatable connection design between the two ends of the threaded rods 2 and the base 1 allows the device to move more flexibly and reduces the risk of failure due to uncoordinated movement. Multiple connecting plates 17 are slidably connected to the rotating seat 15. The sliding connection makes the connecting plates 17 move smoothly and improves the stability during injection and cleaning.

[0041] Working principle: When using this device, the operator first places the reagent tube 8 and the cleaning solution tube 20 into the first placement hole 26, the second placement seat 19, and the second placement hole 27 of the first placement seat 7, respectively. Then, through the coordinated work of the first servo motor 4 and the second servo motor 9, the first placement seat 7 is driven to vibrate left and right and up and down, effectively preventing sample precipitation or stratification. After the sample is vibrated, the electric telescopic rod 16 drives the injection needle 18 to descend into the reagent tube 8 for sample extraction and testing. After the test is completed, the fourth servo motor 23 drives the support column 28 to rotate, causing the sampling needle after testing to rotate to the other side and descend into the cleaning solution tube 20 for cleaning. The injection needle 18 on the other side, after cleaning, can rotate to the reagent tube 20. Samples are extracted and tested on one side of tube 8, allowing testing and cleaning to be performed simultaneously. This parallel processing method avoids the time spent waiting for cleaning to be completed before testing the next sample, which is common in traditional methods, and significantly improves the overall analysis efficiency. While testing and cleaning are being performed, staff can load materials onto the empty first placement seat 7 and second placement seat 19 on the other side. After testing and cleaning are completed on one side, the third servo motor 14 moves the first placement seat 7 and second placement seat 19 to the side for unloading. The untested first placement seat 7 and second placement seat 19 are then moved to the lower end of the rotating seat 15 for testing, further improving the overall analysis efficiency.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic liquid sampler, comprising a base (1), characterized in that: Both sides of the upper inner end of the base (1) are provided with threaded rods (2), and each of the two threaded rods (2) is threaded with a threaded block (3). At least one second placement seat (19) is fixedly arranged side by side on the upper end of one of the threaded blocks (3). Multiple second placement holes (27) are evenly arranged in an arc shape with the center of the second placement seat as the center. Cleaning fluid pipes (20) are arranged inside the multiple second placement holes (27). At least one detection unit is provided on the upper end of the other threaded block (3). The detection unit includes a first servo motor (4). The output end of the first servo motor (4) Each is fixedly connected to a connecting seat (5). Multiple springs (6) are fixedly connected at even intervals on the outer side of the upper end of the connecting seat (5). A first placement seat (7) is fixedly connected to the upper end of each of the multiple springs (6). Multiple first placement holes (26) are evenly spaced on the outer side of the upper end of the two first placement seats (7). A reagent tube (8) is provided inside each of the multiple first placement holes (26). A second servo motor (9) is provided in the middle of the interior of each connecting seat (5). A cam (10) is sleeved on the outside of the output end of the second servo motor (9). During the rotation of the cam, the first placement seat (7) is driven to move up and down. A fourth servo motor (23) is provided at the center of the base (1). The output end of the fourth servo motor (23) is fixedly connected to a support column (28). The support column (28) is rotatably mounted on the base. Multiple electric telescopic rods (16) are evenly spaced in a ring at the upper end of the support column (28). The lower ends of the multiple electric telescopic rods (16) extend into the interior of the rotating seat (15) and are fixedly connected to a connecting plate (17). An injection needle (18) is provided on the multiple connecting plates (17). A detector (29) is provided at the upper end of the interior of the support column (28).

2. The automatic liquid sampler according to claim 1, characterized in that: The upper end of the base (1) is provided with sliding grooves (22) on both sides, and the two threaded blocks (3) are slidably connected inside the sliding grooves (22).

3. The automatic liquid sampler according to claim 1, characterized in that: The interior of the first placement hole (26) at the upper end of the two first placement seats (7) is provided with anti-slip sleeves (11), and the inner walls of the multiple anti-slip sleeves (11) are tightly fitted to the reagent tube (8).

4. The automatic liquid sampler according to claim 1, characterized in that: Gears (12) are fitted on the outer side of both threaded rods (2), and toothed belts (13) are fitted on the outer side of the two gears (12). A third servo motor (14) is fixedly connected to one end face of one threaded rod (2).

5. The automatic liquid sampler according to claim 1, characterized in that: A control panel (21) is provided at one corner of one side end face of the base (1). The control panel (21) is electrically connected to the first servo motor (4), the second servo motor (9), the third servo motor (14), the fourth servo motor (23), and the electric telescopic rod (16).

6. The automatic liquid sampler according to claim 1, characterized in that: The upper middle part of the base (1) is provided with a rotating groove (25), and the lower outer side of the support column (28) is fixedly connected with a rotating ring (24), which is slidably connected inside the rotating groove (25).

7. The automatic liquid sampler according to claim 1, characterized in that: Both ends of the two threaded rods (2) are rotatably connected to the base (1).

8. The automatic liquid sampler according to claim 1, characterized in that: All of the connecting plates (17) are slidably connected to the rotating seat (15).

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