An automated pipetting system

Abstract

The application relates to the technical field of automatic pipetting, in particular to an automatic pipetting system which comprises a sleeve, the bottom end of the sleeve is integrally formed with a plug pipe, a suction pipe is inserted into the plug pipe, characterized in that: a pressure control pipe is arranged in the sleeve and communicated with the plug pipe, a piston which moves along the axial direction of the pressure control pipe is slidably embedded in the pressure control pipe, the position of the piston is adjusted and controlled through a threaded transmission structure, the top end of the sleeve is fixedly connected with a cover plate, and a socket which is communicated with and controlled by the outside is arranged on the top of the cover plate. According to the scheme, the pressure control pipe which is communicated with the plug pipe is arranged in the sleeve, a piston which is driven through a threaded structure is slidably embedded in the pressure control pipe, the position of the piston is conveniently controllable, in addition, the socket and the external control structure are docked on the outside of the sleeve, and the pipetting structure is conveniently controlled.

Description

Technical Field

[0001] This application relates to the field of automated pipetting technology, and in particular to an automated pipetting system. Background Technology

[0002] Most existing automated pipetting systems adopt an integrated design, where core components such as the robotic arm module, pipetting actuator, drive system, and control system are typically rigidly connected by a fixed frame. The position, motion trajectory, and functional parameters of each component are preset at the factory. This structure significantly limits subsequent functional adjustments and adaptive modifications in practical applications.

[0003] On the one hand, when experimental or production needs change, such as requiring the replacement of pipette tips of different specifications, adjustment of pipetting range to suit samples of different volumes, or increase or decrease of the number of pipetting channels to improve processing efficiency, the components of the integrated structure are closely interconnected and difficult to disassemble, replace, or upgrade individually. For example, if the range of motion of the robotic arm is to be changed to accommodate a larger experimental platform, a large-scale modification of the overall frame is required, which is not only complex to operate but may also affect the original accuracy calibration of the system.

[0004] On the other hand, during equipment maintenance or troubleshooting, the integrated structure requires disassembling multiple related components to repair a single part, increasing maintenance difficulty and downtime. Furthermore, for scenarios requiring flexible adjustments to pipetting steps and changes to liquid transfer paths based on different experimental protocols, the integrated system's program and hardware are tightly bound, making it difficult for users to customize the motion logic or functional modules, significantly limiting the system's versatility and scalability. Therefore, to address these issues, this application provides an automated pipetting system. Utility Model Content

[0005] To address the aforementioned problems, this application provides an automated pipetting system.

[0006] This application provides an automatic pipetting system, including a sleeve, with an insert tube integrally formed at the bottom end of the sleeve, and a pipette inserted into the insert tube. The system is characterized in that: a pressure control tube is provided inside the sleeve and connected to the insert tube, and a piston that moves axially is slidably embedded inside the pressure control tube. The position of the piston is adjusted and controlled by a threaded transmission structure. A cover plate is fixedly connected to the top end of the sleeve, and a port for external communication is provided on the top of the cover plate.

[0007] By setting a pressure control tube inside the sleeve and connecting it to the insertion tube, and a piston that is driven by a threaded structure is slidably embedded inside the pressure control tube, the position of the piston can be easily controlled. In addition, an insertion port is set on the outside of the sleeve to connect with an external control structure, so as to realize convenient control of the pipetting structure.

[0008] Preferably, the threaded transmission structure includes a threaded tube fixed to the top of the piston, and a threaded rod is connected to the inner side of the threaded tube.

[0009] Preferably, a transmission component is provided at the top end of the threaded rod, and the input end of the transmission component is connected to a motor.

[0010] Preferably, the pressure control tube is provided with a centrally symmetrical limiting groove, and the piston is provided with a limiting strip that cooperates with the limiting groove.

[0011] Preferably, the cover plate is provided with symmetrical hanging ears on both sides.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By setting a pressure control tube inside the sleeve and connecting it to the insertion tube, and a piston that is driven by a threaded structure is slidably embedded inside the pressure control tube, the position of the piston can be easily controlled. In addition, an insertion port is set on the outside of the sleeve to connect with an external control structure, so as to realize convenient control of the pipetting structure. Attached Figure Description

[0014] Figure 1 It is the isometric drawing in Embodiment 1 of this application;

[0015] Figure 2 This is a longitudinal sectional view of Embodiment 1 of this application;

[0016] Figure 3 This is a structural diagram of the operating mechanism in Embodiment 1 of this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Sleeve; 11. Insertion tube; 2. Suction tube; 3. Cover plate; 31. Hanging lug; 4. Insertion port; 5. Pressure control tube; 6. Threaded tube; 7. Piston; 8. Threaded rod; 9. Motor; 10. Transmission assembly. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 - Figure 3 This application will be described in further detail.

[0019] Example 1:

[0020] An automated pipetting system, referring to Figure 1 - Figure 3 The bottom end of the sleeve 1 is integrally formed with an insertion tube 11, and a suction tube 2 is inserted into the insertion tube 11. A pressure control tube 5 is provided inside the sleeve 1 and connected to the insertion tube 11. A piston 7 that moves along its axial direction is slidably embedded inside the pressure control tube 5. The position of the piston 7 is adjusted and controlled by a threaded transmission structure. The top end of the sleeve 1 is fixedly connected to a cover plate 3, and the top of the cover plate 3 is provided with a socket 4 for external communication.

[0021] By setting a pressure control tube 5 inside the sleeve 1 and communicating with the insertion tube 11, and a piston 7 that is driven by a threaded structure is slidably embedded inside the pressure control tube 5, the position of the piston 7 is convenient and controllable. In addition, an insertion port 4 is set outside the sleeve 1 to connect with the external control structure, so as to realize convenient control of the pipetting structure.

[0022] The threaded drive structure includes a threaded tube 6 fixed to the top of the piston 7, and a threaded rod 8 connected to the inner side of the threaded tube 6.

[0023] A transmission assembly 10 is provided at the top of the threaded rod 8. The input end of the transmission assembly 10 is connected to the motor 9. When the motor 9 is running, the threaded rod 8 is rotated through the transmission assembly 10. The threaded rod 8 then drives the threaded tube 6 to move axially through the threaded structure, thereby realizing the movement of the piston 7 in the vertical direction.

[0024] The pressure control tube 5 is equipped with a centrally symmetrical limiting groove, and the piston 7 is equipped with a limiting strip that cooperates with the limiting groove. Through the limiting groove and limiting strip structure, the piston 7 can move axially under the action of the threaded tube 6, thus preventing it from rotating.

[0025] The cover plate 3 is symmetrically provided with hanging ears 31 on both sides. The cover plate 3 is fixed to the external structure through the hanging ears 31, thereby realizing the convenient combination of the pipetting structure.

[0026] The foregoing description of an exemplary embodiment of an automated pipetting system provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. An automated pipetting system, comprising a cannula (1), wherein an insert (11) is integrally formed at the bottom end of the cannula (1), and a pipette (2) is inserted into the insert (11), characterized in that: The sleeve (1) is connected to the insertion tube (11) by a pressure control tube (5). A piston (7) that moves along its axial direction is slidably embedded inside the pressure control tube (5). The position of the piston (7) is adjusted and controlled by a threaded transmission structure. The top of the sleeve (1) is fixedly connected to a cover plate (3), and the top of the cover plate (3) is provided with a socket (4) for external communication.

2. The automated pipetting system according to claim 1, characterized in that: The threaded transmission structure includes a threaded tube (6) fixed to the top of the piston (7), and a threaded rod (8) is connected to the inner side of the threaded tube (6).

3. The automated pipetting system according to claim 2, characterized in that: A transmission assembly (10) is provided at the top of the threaded rod (8), and the input end of the transmission assembly (10) is connected to a motor (9).

4. The automated pipetting system according to claim 3, characterized in that: The pressure control tube (5) is provided with a centrally symmetrical limiting groove, and the piston (7) is provided with a limiting strip that cooperates with the limiting groove.

5. The automated pipetting system according to claim 1, characterized in that: The cover plate (3) is provided with symmetrical hanging ears (31) on both sides.

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