Liquid suction mechanism of pipetting workstation

Abstract

The utility model relates to a pipetting workstation liquid suction mechanism which comprises a Y-direction moving seat and an X-direction moving seat capable of moving back and forth along the Y-direction moving seat, a plurality of injection pumps are arranged in front of the X-direction moving seat, pipetting gun heads are arranged at output ports of the injection pumps, pipetting pipes are inserted below the pipetting gun heads, and the pipetting gun heads are connected with the pipetting pipes. A Z-direction driving structure for driving the injection pump, the pipette tip and the pipette to synchronously lift is arranged on the X-direction moving seat, and a Y-direction driving structure for driving the X-direction moving seat to move left and right is arranged behind the Y-direction moving seat. The device is simple in structure, reasonable in design, convenient to use, labor-saving and labor-saving, and the working efficiency of pipetting is improved.

Description

Technical Field

[0001] The utility model relates to a liquid suction mechanism of a pipetting workstation. Background Art

[0002] Liquid transfer processing is widely used in genomics research such as nucleic acid extraction, construction of various biological laboratory systems, large-scale sequencing, and drug screening, protein analysis, etc. During the liquid transfer process, in order to move the liquid in one test tube to another test tube, usually, a pipette is manually used for liquid transfer. When the number of liquid transfer times is relatively large, it often requires multiple back-and-forth operations, which is time-consuming, laborious, and inefficient. Content of the Utility Model

[0003] The utility model improves the above problems, that is, the technical problem to be solved by the utility model is to provide a liquid suction mechanism of a pipetting workstation, which is convenient and efficient to use.

[0004] The utility model is composed of a Y-direction moving seat and an X-direction moving seat that can move back and forth along the Y-direction moving seat. A plurality of injection pumps are arranged in front of the X-direction moving seat. A pipette tip is arranged at the output port of the injection pump. A liquid suction tube is inserted below the pipette tip. A Z-direction driving structure for driving the injection pump, the pipette tip, and the liquid suction tube to move up and down synchronously is arranged on the X-direction moving seat. A Y-direction driving structure for driving the X-direction moving seat to move left and right is arranged behind the Y-direction moving seat.

[0005] Further, an X-direction slider is arranged above the X-direction moving seat. An X-direction guide rail matched with the first slider is arranged on the Y-direction moving seat. A cylinder for driving the X-direction moving seat to move back and forth along the X-direction guide rail is arranged on the Y-direction moving seat.

[0006] Further, the Z-direction driving structure includes a Z-direction slide rail arranged in front of the X-direction moving seat. A Z-direction slider is arranged at the rear of the injection pump. The Z-direction slider is slidably matched with the Z-direction slide rail. A lead screw motor is arranged at the upper part of the X-direction moving seat. The output shaft of the lead screw motor is in threaded cooperation with the Z-direction slider to drive the Z-direction slider and the pipette tip to move up and down.

[0007] Further, the Y-direction driving structure includes a Y-direction guide rail arranged on the frame. A Y-direction slider that can slide along the Y-direction guide rail is arranged at the rear of the Y-direction moving seat. A synchronous belt is arranged outside the Y-direction moving seat. The Y-direction moving seat is fixedly connected to a certain point at the lower part of the synchronous belt. Synchronous wheels are arranged at both ends of the synchronous belt. One of the synchronous wheels is driven by a Y-direction motor to rotate.

[0008] Furthermore, a feeding mechanism is arranged on the side of the injection pump, and the feeding mechanism includes a feeding cylinder fixing plate arranged on the outside of the injection pump, a cylinder is installed on the feeding cylinder fixing plate, a feeding pressing sleeve is arranged on the outside of the pipette head, and the cylinder output shaft is connected to the feeding pressing sleeve via a connecting piece, and the width of the feeding pressing sleeve is greater than the width of the upper end of the pipette tube.

[0009] Furthermore, a plug connector is provided at the lower end of the pipette tip, and the plug connector matches with the upper end of the pipette.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the device has a simple structure, a reasonable design, and is easy to use. It can efficiently perform the work of aspirating and taking liquid without the need for time-consuming and labor-intensive manual work. The Y-axis motor drives the synchronous belt to move, thereby driving the Y-axis moving seat to move left and right to adjust the left and right positions of the pipette tip and the pipette tube; the cylinder drives the X-axis moving seat to move forward and backward, thereby synchronously adjusting the front and back positions of the pipette tip and the pipette tube; the screw motor and the screw drive the Z-axis slider, the injection pump, the pipette tip, and the pipette tube to move up and down, so that the pipette tube is extended into the corresponding test tube to perform the work of aspirating and discharging liquid; the above-mentioned aspiration and discharging work is driven by the injection pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the front structure of an embodiment of the utility model;

[0012] Figure 2 It is a schematic diagram of the side structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Example: As attached Figure 1-2 As shown, in this embodiment, a liquid suction mechanism of a pipetting workstation is provided, including a Y-axis movable seat 1 and an X-axis movable seat 2 which can move forward and backward along the Y-axis movable seat, a plurality of injection pumps 3 are arranged in front of the X-axis movable seat, a pipette tip 4 is arranged at the output port of the injection pump, a pipette tip 4 is inserted under the pipette tip, a Z-axis driving structure 5 for driving the injection pump, the pipette tip and the pipette to rise and fall synchronously is arranged on the X-axis movable seat, and a Y-axis driving structure 6 for driving the X-axis movable seat to move left and right is arranged at the back of the Y-axis movable seat.

[0015] In the embodiment of the utility model, an X-direction slider 7 is arranged above the X-direction moving seat, an X-direction guide rail 8 cooperating with the first slider is arranged on the Y-direction moving seat, and a cylinder 10 is arranged on the Y-direction moving seat to drive the X-direction moving seat to move forward and backward along the X-direction guide rail.

[0016] In an embodiment of the present utility model, the Z-direction driving structure 5 includes a Z-direction slide rail 501 disposed in front of the X-direction moving seat. A Z-direction slider 502 is provided at the rear of the syringe pump. The Z-direction slider is slidably engaged with the Z-direction slide rail. A lead screw motor 503 is disposed on the upper part of the X-direction moving seat. The output shaft of the lead screw motor is in threaded engagement with the Z-direction slider to drive the Z-direction slider and the pipette tip to move up and down. Specifically, a lead screw 504 is provided on the output shaft of the lead screw motor, and the lead screw is in threaded engagement with the Z-direction slider.

[0017] In an embodiment of the present utility model, the Y-direction driving structure 6 includes a Y-direction guide rail 601 disposed on the frame. A Y-direction slider 602 capable of sliding along the Y-direction guide rail is provided at the rear of the Y-direction moving seat. A synchronous belt 603 is disposed outside the Y-direction moving seat. The Y-direction moving seat is fixedly connected to a certain point at the lower part of the synchronous belt. Synchronous wheels 604 are provided at both ends of the synchronous belt. One of the synchronous wheels is driven to rotate by a Y-direction motor 605, so as to drive the Y-direction moving seat to move left and right integrally along the Y-direction guide rail.

[0018] In an embodiment of the present utility model, a blanking mechanism 9 is disposed beside the syringe pump. The blanking mechanism includes a blanking cylinder fixing plate 901 disposed outside the syringe pump. A cylinder 902 is installed on the blanking cylinder fixing plate. A blanking pressing sleeve 903 is sleeved outside the pipette tip. The output shaft of the cylinder is connected to the blanking pressing sleeve through a connecting member 904. The width of the blanking pressing sleeve is greater than the width of the upper end of the liquid suction tube. The blanking pressing sleeve can be made of a material having a certain elasticity and a certain hardness.

[0019] When it is necessary to remove the liquid suction tube, the cylinder is driven to drive the blanking pressing sleeve to move downward along the length direction of the pipette tip, and the upper part of the liquid suction tube is pressed out of the insertion joint 401 of the pipette tip, so that the discarded liquid suction tube is separated and drops downward.

[0020] In an embodiment of the present utility model, an insertion joint 401 is provided at the lower end of the pipette tip. The insertion joint is matched with the upper end of the liquid suction tube. The insertion joint and the pipette tip are integrated. Liquid passing ports are provided in the middle of the insertion joint and the liquid transfer joint.

[0021] In an embodiment of the present utility model, the syringe pump is a prior art, and a vertical syringe pump with a model of SY08 / 5ML can be adopted.

[0022] After the insertion joint of the pipette tip is inserted into the liquid suction tube, the two are in a sealed state.

[0023] In the embodiment of the present utility model, during operation: the Y-axis motor drives the synchronous belt to move, thereby driving the Y-axis moving seat to move left and right to adjust the left and right positions of the pipette tip and the liquid suction pipe; the air cylinder drives the X-axis moving seat to move back and forth, thereby synchronously adjusting the front and back positions of the pipette tip and the liquid suction pipe; the screw motor and the screw drive the Z-axis slider, the injection pump, the pipette tip and the liquid suction pipe to move up and down, so that the liquid suction pipe extends into the corresponding test tube for liquid suction and drainage; the above-mentioned liquid suction and drainage work is driven by the injection pump, so that the liquid is discharged or inhaled through the liquid suction pipe.

[0024] For any of the technical solutions disclosed by the present utility model as described above, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is only the numerical values with obvious technical effects or representativeness among many feasible numerical values. Since there are too many numerical values to list exhaustively, the present utility model only discloses some numerical values to illustrate the technical solutions of the present utility model, and the above-listed numerical values should not constitute a limitation to the protection scope of the present invention.

[0025] If terms such as "first" and "second" are used in this article to limit components, those skilled in the art should be aware that the use of "first" and "second" is only for the convenience of distinguishing components in the description. Unless otherwise stated, the above terms have no special meaning.

[0026] At the same time, if the above-mentioned present utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutually fixed connection can also be replaced by an integral structure (for example, manufactured by integral forming using casting technology) (except when it is obviously impossible to adopt the integral forming process).

[0027] In addition, for the terms used to represent the positional relationship or shape in any of the technical solutions disclosed by the above-mentioned present utility model, unless otherwise stated, their meanings include states or shapes that are approximate, similar or close to them.

[0028] Any component provided by the present utility model can either be assembled from multiple separate components or be a single component manufactured by integral forming technology.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications can still be made to the specific implementation manners of the present utility model or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present utility model, they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. A liquid suction mechanism of a pipetting workstation, characterized in that, It includes a Y-direction moving seat and an X-direction moving seat that can move forward and backward along the Y-direction moving seat. A number of injection pumps are arranged in front of the X-direction moving seat. A pipette tip is arranged at the output port of the injection pump. A liquid suction pipe is inserted below the pipette tip. A Z-direction driving structure for driving the injection pump, the pipette tip, and the liquid suction pipe to move up and down synchronously is arranged on the X-direction moving seat. A Y-direction driving structure for driving the X-direction moving seat to move left and right is arranged behind the Y-direction moving seat.

2. The liquid suction mechanism of the pipetting workstation according to claim 1, characterized in that, An X-direction slider is arranged above the X-direction moving seat. An X-direction guide rail matched with the first slider is arranged on the Y-direction moving seat. A cylinder for driving the X-direction moving seat to move forward and backward along the X-direction guide rail is arranged on the Y-direction moving seat.

3. The liquid suction mechanism of the pipetting workstation according to claim 1, wherein The Z-direction driving structure includes a Z-direction slide rail arranged in front of the X-direction moving seat. A Z-direction slider is arranged at the rear of the injection pump. The Z-direction slider is slidably matched with the Z-direction slide rail. A screw motor is arranged at the upper part of the X-direction moving seat. The output shaft of the screw motor is in threaded cooperation with the Z-direction slider to drive the Z-direction slider and the pipette tip to move up and down.

4. The liquid suction mechanism of the pipetting workstation according to claim 1, wherein, The Y-direction driving structure includes a Y-direction guide rail arranged on the frame. A Y-direction slider that can slide along the Y-direction guide rail is arranged at the rear of the Y-direction moving seat. A synchronous belt is arranged outside the Y-direction moving seat. The Y-direction moving seat is fixedly connected to a certain point at the lower part of the synchronous belt. Synchronous wheels are arranged at both ends of the synchronous belt. One of the synchronous wheels is driven to rotate by a Y-direction motor.

5. The liquid suction mechanism of the pipetting workstation according to claim 1, wherein A blanking mechanism is arranged beside the injection pump. The blanking mechanism includes a blanking cylinder fixing plate arranged outside the injection pump. A cylinder is installed on the blanking cylinder fixing plate. A blanking pressing sleeve is sleeved outside the pipette tip. The output shaft of the cylinder is connected to the blanking pressing sleeve through a connecting piece. The width of the blanking pressing sleeve is greater than the width of the upper end of the liquid suction pipe.

6. The liquid suction mechanism of the pipetting workstation according to claim 1, characterized in that, An insertion joint is arranged at the lower end of the pipette tip. The insertion joint is matched with the upper end of the liquid suction pipe.

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