Automatic liquid moving device for sample pretreatment

Abstract

The utility model relates to an automatic liquid moving device, belongs to the technical field of sample detection equipment, and in particular relates to an automatic liquid moving device for sample pretreatment, which comprises a base, a motor is fixedly connected in the base, a connecting shaft is fixedly connected on an output shaft of the motor, and a mounting plate is movably inserted on the connecting shaft; according to the device, the motor, the connecting shaft, the through hole, the groove, the mounting plate, the limiting column, the rubber pad, the first clamping groove, the fixing column, the fixing disc, the second clamping groove and the test tubes are matched, after one test tube is filled with liquid, the motor is started, the output shaft of the motor is used for driving the mounting plate to rotate, and the test tube rotates along with the motor, so that a new test tube is moved to the position below the conveying pipe for liquid filling; and the mounting plate is moved upwards, so that the mounting plate is separated from the connecting shaft and the limiting column is separated from the groove, the test tubes can be collectively taken down, discharging of the device is facilitated, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sample testing equipment technology, specifically an automatic liquid transfer device for sample pretreatment. Background Technology

[0002] Sample pretreatment refers to a series of processing steps performed on raw samples before chemical analysis, physical testing, or biological detection to make them suitable for subsequent analysis or detection.

[0003] Chinese patent CN218444712U discloses a liquid sample pretreatment device, including a main unit, a sample container, a peristaltic pump, and a test tube installed on the main unit. The inlet of the peristaltic pump is connected to the outlet of the sample container, and the outlet of the peristaltic pump is connected to the test tube. The sample container includes a solution bottle and a thin tube. A liquid level detection module is installed on the main unit on one side of the solution bottle. This patent realizes fully automatic, fast and convenient liquid delivery and filtration, improves stability and efficiency, and avoids errors caused by manual operation.

[0004] In the above technical solution, after the device delivers a specified amount of liquid to a test tube, the user needs to manually replace the test tube and then use the device to deliver liquid to the new test tube. The operation is cumbersome and delays the work process.

[0005] Based on this, this application proposes an automatic liquid transfer device for sample pretreatment. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes an automatic liquid transfer device for sample pretreatment. The device rotates by rotating a motor and mounting plate, causing the test tubes on it to rotate accordingly. This facilitates test tube replacement and improves the device's working efficiency. Furthermore, the mounting plate and connecting shaft are movably connected, allowing for quick disassembly and facilitating the collective unloading of completed test tubes, thus enhancing the device's practicality.

[0007] The technical solution to achieve the purpose of this utility model is: an automatic liquid transfer device for sample pretreatment, including a base, a motor fixedly connected inside the base, a connecting shaft fixedly connected to the output shaft of the motor, and further including;

[0008] The mounting plate is movably inserted into the connecting shaft. The base has a through hole through which the connecting shaft passes. The base has a groove. Multiple limiting posts are fixedly connected to the mounting plate, and each limiting post is located within the groove. A rubber pad is fixedly connected to the mounting plate, and multiple slots are provided on the rubber pad. Multiple test tubes are movably inserted into each of the multiple slots.

[0009] Preferably, a fixing post is fixedly connected to the mounting plate, a fixing plate is fixedly connected to the fixing post, and a plurality of slots are provided on the fixing plate, wherein a plurality of test tubes are movably inserted into the plurality of slots.

[0010] Preferably, the base is equipped with a controller, and a side plate is fixedly connected to the base.

[0011] Preferably, the side plate is provided with a liquid level detection module, the liquid level detection module is electrically connected to the controller, the liquid level detection module is provided with a solution bottle, and a connecting tube is fixedly connected to the solution bottle.

[0012] Preferably, a plurality of buckles are fixedly connected to the side plate, the connecting tube passes through the plurality of buckles, a peristaltic pump is fixedly connected to the side plate, the peristaltic pump is electrically connected to the controller, and the connecting tube is fixedly connected to the input end of the peristaltic pump.

[0013] Preferably, a delivery pipe is fixedly connected to the output end of the peristaltic pump, an electric push rod is fixedly connected to the side plate, a fixing buckle is fixedly connected to the output shaft of the electric push rod, and the delivery pipe is snapped into the fixing buckle.

[0014] Compared with existing technologies, the significant advantages of this invention are:

[0015] In this invention, a motor, connecting shaft, through hole, groove, mounting plate, limiting post, rubber pad, slot one, fixing post, fixing plate, slot two, and test tube work together. After one test tube is filled with liquid, the motor is started, and its output shaft drives the mounting plate to rotate. The test tube rotates accordingly, moving the new test tube below the delivery pipe for filling with liquid, thereby improving the working efficiency of the device. By moving the mounting plate upward, the mounting plate is separated from the connecting shaft, and the limiting post is separated from the groove, allowing the test tubes to be removed collectively, facilitating the unloading of the device and improving its practicality. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is an exploded structural diagram of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base; 2. Controller; 3. Side plate; 4. Liquid level detection module; 5. Solution bottle; 6. Connecting pipe; 7. Buckle; 8. Peristaltic pump; 9. Electric push rod; 10. Fixing buckle; 11. Delivery pipe; 12. Motor; 13. Connecting shaft; 14. Through hole; 15. Groove; 16. Mounting plate; 17. Limiting post; 18. Rubber pad; 19. Slot 1; 20. Fixing post; 21. Fixing plate; 22. Slot 2; 23. Test tube. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] This utility model provides an improved automatic liquid transfer device for sample pretreatment. The technical solution of this utility model is as follows:

[0023] like Figure 1 and Figure 2 As shown, an automatic liquid transfer device for sample pretreatment includes a base 1, a motor 12 fixed inside the base 1 by bolts, a connecting shaft 13 fixed to the output shaft of the motor 12 by a coupling, the connecting shaft 13 having a cross-shaped cross section, and also includes;

[0024] Mounting plate 16 is movably inserted into connecting shaft 13. A through hole 14 is provided on base 1, through which the connecting shaft 13 passes. A groove 15 is provided on base 1. Multiple limiting posts 17 are fixedly connected to mounting plate 16, arranged in a circular array around the center of mounting plate 16. All limiting posts 17 are located within the groove 15. A rubber pad 18 is fixedly connected to mounting plate 16. The rubber pad 18 is soft and effectively protects the bottom of test tube 23. The device has multiple slots 19, on which multiple test tubes 23 are movably inserted. The motor 12 drives the mounting plate 16 to rotate, causing the test tubes 23 on it to rotate accordingly. This makes it easy to replace the test tubes 23 that have been filled with liquid with new test tubes 23, thus improving the working efficiency of the device. By moving the mounting plate 16 upward, the mounting plate 16 is separated from the connecting shaft 13, and the limiting post 17 is separated from the groove 15, so that the test tubes 23 can be removed collectively, which facilitates the unloading of materials by the device and improves its practicality.

[0025] Furthermore, such as Figure 1 and Figure 2As shown, a fixing post 20 is fixedly connected to the mounting plate 16, and a fixing plate 21 is fixedly connected to the fixing post 20. The fixing plate 21 has multiple slots 22. The slots 22 are arranged in a circular array with the center of the fixing plate 21 as the center. Slot 19 corresponds to slot 22 one by one. The bottom of the test tube 23 is embedded in slot 19, and the top of the test tube 23 is embedded in slot 22. Multiple test tubes 23 are movably inserted into the multiple slots 22.

[0026] Furthermore, such as Figure 1 As shown, a controller 2 is provided on the base 1, and a side plate 3 is fixedly connected to the base 1. The motor 12 is electrically connected to the controller 2, and the peristaltic pump 8 is controlled by the controller 2.

[0027] Furthermore, such as Figure 1 As shown, a liquid level detection module 4 is provided on the side plate 3. The liquid level detection module 4 is electrically connected to the controller 2. A solution bottle 5 is provided on the liquid level detection module 4. The liquid level detection module 4 monitors the liquid level of the liquid sample in the solution bottle 5, so as to remind the staff of the remaining amount of liquid sample. A connecting pipe 6 is fixedly connected to the solution bottle 5.

[0028] Furthermore, such as Figure 1 As shown, multiple clips 7 are fixedly connected to the side plate 3, and the connecting tube 6 passes through the multiple clips 7. The connecting tube 6 is fixed by the clips 7. A peristaltic pump 8 is fixed to the side plate 3 by bolts. The peristaltic pump 8 is electrically connected to the controller 2, and the connecting tube 6 is fixedly connected to the input end of the peristaltic pump 8.

[0029] Furthermore, such as Figure 1 As shown, a delivery pipe 11 is fixedly connected to the output end of the peristaltic pump 8, and an electric push rod 9 is fixed to the side plate 3 by bolts. A fixing buckle 10 is fixedly connected to the output shaft of the electric push rod 9. The position of the dripping liquid in the delivery pipe 11 is controlled by the electric push rod 9, and the delivery pipe 11 is snapped onto the fixing buckle 10.

[0030] The specific working method is as follows: The liquid sample to be pretreated is poured into the solution bottle 5. The liquid level detection module 4 can monitor the liquid level of the solution bottle 5 to remind the user of the remaining amount of liquid sample. Then, the peristaltic pump 8 is started. Its input end, in conjunction with the connecting pipe 6, draws the liquid in the solution bottle 5 into the delivery pipe 11. The electric push rod 9 moves the end of the delivery pipe 11 away from the peristaltic pump 8 to directly above the test tube 23. The liquid enters the test tube 23 along the delivery pipe 11. After the peristaltic pump 8 has delivered the specified amount of liquid sample, the motor 12 is started. Its output shaft drives the mounting plate 16 to rotate, and the test tube 23 on it rotates accordingly. The new test tube 23 is rotated to the bottom of the delivery pipe 11 for liquid filling. After all the test tubes 23 are filled with liquid, the mounting plate 16 is moved up, so that the mounting plate 16 is separated from the connecting shaft 13 and the limiting post 17 is separated from the groove 15. The mounting plate 16 can then be removed from the base 1, and the test tubes 23 after liquid filling can be discharged collectively, which improves the practicality of the device.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An automatic liquid transfer device for sample pretreatment, comprising a base (1), wherein a motor (12) is fixedly connected inside the base (1), characterized in that: The output shaft of the motor (12) is fixedly connected to a connecting shaft (13), and also includes; Mounting plate (16), which is movably inserted into connecting shaft (13), base (1) has through hole (14), connecting shaft (13) passes through through hole (14), base (1) has groove (15), mounting plate (16) has multiple limiting posts (17) fixedly connected, multiple limiting posts (17) are all located in groove (15), mounting plate (16) has rubber pad (18) fixedly connected, rubber pad (18) has multiple slots (19), multiple test tubes (23) are movably inserted into multiple slots (19).

2. The automatic liquid transfer device for sample pretreatment according to claim 1, characterized in that: A fixing post (20) is fixedly connected to the mounting plate (16), and a fixing plate (21) is fixedly connected to the fixing post (20). The fixing plate (21) has multiple slots (22), and multiple test tubes (23) are movably inserted into the multiple slots (22).

3. The automatic liquid transfer device for sample pretreatment according to claim 1, characterized in that: The base (1) is equipped with a controller (2), and a side plate (3) is fixedly connected to the base (1).

4. The automatic liquid transfer device for sample pretreatment according to claim 3, characterized in that: The side plate (3) is provided with a liquid level detection module (4), which is electrically connected to the controller (2). The liquid level detection module (4) is provided with a solution bottle (5), and a connecting pipe (6) is fixedly connected to the solution bottle (5).

5. The automatic liquid transfer device for sample pretreatment according to claim 4, characterized in that: Multiple buckles (7) are fixedly connected to the side plate (3), and the connecting pipe (6) passes through the multiple buckles (7). A peristaltic pump (8) is fixedly connected to the side plate (3), and the peristaltic pump (8) is electrically connected to the controller (2). The connecting pipe (6) is fixedly connected to the input end of the peristaltic pump (8).

6. The automatic liquid transfer device for sample pretreatment according to claim 5, characterized in that: A delivery pipe (11) is fixedly connected to the output end of the peristaltic pump (8), an electric push rod (9) is fixedly connected to the side plate (3), a fixing buckle (10) is fixedly connected to the output shaft of the electric push rod (9), and the delivery pipe (11) is snapped onto the fixing buckle (10).

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