Micro liquid separation equipment

Abstract

The utility model discloses micro liquid separation equipment. The device comprises a bottom plate, a stand column fixedly arranged at the top of the bottom plate, a protection box arranged at the top of the stand column, a plunger pump arranged in the protection box, a cross beam fixedly arranged at the top of the stand column and located on the lower side of the protection box, a mounting column arranged on the cross beam in a sliding mode, and a mounting plate fixedly arranged at the bottom of the mounting column. And the liquid adding needles are arranged on the mounting plate and are connected to a plunger pump through pipelines.

Description

Technical Field

[0001] This invention relates to the field of laboratory equipment technology, and in particular to a micro-liquid separation device. Background Technology

[0002] Currently available micro-liquid separation devices still suffer from problems such as low separation accuracy and complex operation in certain situations. Especially when processing large numbers of samples, manual operation can easily introduce errors, reducing the reliability of experimental results.

[0003] However, existing micro-liquid separation equipment has the following drawbacks:

[0004] (1) Accuracy issues: Although most micro dispensers claim to achieve high accuracy, in actual use, due to limitations in the manufacturing process or wear caused by long-term use, the dispensing accuracy may decrease.

[0005] (2) High price: High-performance micro-liquid separation equipment is usually expensive, which may be a burden for small laboratories or research institutions with limited funds. In addition, the use of some micro-liquid separation equipment also requires the purchase of special consumables, such as disposable pipette tips, which also increases the cost of experiments. Utility Model Content

[0006] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide a micro-liquid separation device to achieve precise control of micro-liquids.

[0007] To address the aforementioned technical problems, one of the objectives of this application is achieved through the following technical solution:

[0008] A micro-liquid separator includes a base plate, a column fixedly mounted on the top of the base plate, a protective box mounted on the top of the column, a plunger pump mounted inside the protective box, a crossbeam fixedly mounted on the top of the column and located below the protective box, a mounting column slidably mounted on the crossbeam, a mounting plate fixedly mounted on the bottom of the mounting column, and a plurality of liquid dosing needles mounted on the mounting plate, wherein the liquid dosing needles are connected to the plunger pump via pipes.

[0009] Furthermore, the mounting column is movably sleeved on the crossbeam, and the crossbeam is provided with a reciprocating moving assembly capable of driving the mounting column to move. The reciprocating moving assembly includes a rack fixedly mounted on the top of the crossbeam and located inside the mounting column, a mounting block fixedly mounted on the mounting column, a drive motor fixedly mounted on the mounting block, a drive shaft that rotates forward and backward via the drive motor, and a drive gear that rotates forward and backward via the drive shaft and meshes with the rack.

[0010] Furthermore, a horizontal plate is fixedly provided on the top of the base plate, and a placement shell is slidably provided on the top of the horizontal plate, the placement shell being able to correspond to the position of the liquid injection needle.

[0011] Furthermore, the top of the horizontal plate is provided with a groove corresponding to the placement shell, and a sliding column fixedly connected to the placement shell is slidably disposed in the groove.

[0012] Furthermore, a control module is also provided on the top of the base plate, and the plunger pump is electrically connected to the control module.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) By using a plunger pump as the core component and a control module, precise control of micro-liquids can be achieved. Compared with existing technologies, this solves the technical problem that the separation accuracy may decrease due to manufacturing process limitations or wear caused by long-term use. The main body of the equipment adopts a consumable-free design, which does not require pipette tips at all. The volume of all pipelines is reduced to 120ul, which greatly reduces the loss of precious reagents and lowers the cost. Compared with existing technologies, this solves the technical problem that some micro-liquid separation equipment still requires the purchase of special consumables, such as disposable pipette tips, which also increases the cost of experiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present application, showing a schematic diagram of the reciprocating moving component;

[0016] Figure 2 This is a schematic diagram of the rack structure in this application;

[0017] Figure 3 This is a schematic diagram of the drive shaft in this application;

[0018] In the diagram: 1. Reciprocating moving component; 2. Base plate; 3. Column; 4. Protective box; 5. Crossbeam; 6. Mounting column; 7. Mounting plate; 8. Liquid filling needle; 9. Horizontal plate; 10. Placement shell; 11. Slide groove; 12. Slide column; 13. Rack; 14. Mounting block; 15. Drive motor; 16. Drive shaft; 17. Drive gear; 18. Control module. Detailed Implementation

[0019] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the preceding and following related objects as a micro-dispensing device.

[0022] Example 1:

[0023] like Figures 1-3 As shown, this embodiment provides a micro-liquid separation device, which includes a base plate 2, a column 3 fixedly installed on the top of the base plate 2, a protective box 4 installed on the top of the column 3, a plunger pump installed in the protective box 4, a crossbeam 5 fixedly installed on the top of the column 3 and located below the protective box 4, a mounting column 6 slidably installed on the crossbeam 5, a mounting plate 7 fixedly installed at the bottom of the mounting column 6, and a plurality of liquid injection needles 8 installed on the mounting plate 7. The liquid injection needles 8 are connected to the plunger pump through pipes.

[0024] A micro-volume liquid separator includes a base plate 2, a column 3 fixedly mounted on the top of the base plate 2, a protective box 4 mounted on the top of the column 3, a plunger pump mounted inside the protective box 4 with its inlet connected to the liquid, a control module 18 mounted on the top of the base plate 2 for electrical connection between the plunger pump and the control module 18, a crossbeam 5 fixedly mounted on the top of the column 3 and located below the protective box 4, a mounting column 6 slidably mounted on the crossbeam 5, a mounting plate 7 fixedly mounted at the bottom of the mounting column 6, and several liquid injection needles 8 mounted on the mounting plate 7 for connection to the plunger pump via pipes. By using a plunger pump as the core component, in conjunction with the control module 18, precise control of micro-liquids is achieved. Compared with existing technologies, this solves the technical problem that the accuracy of liquid separation may decrease due to manufacturing process limitations or wear caused by long-term use. The main body of the device adopts a consumable-free design, completely eliminating the need for pipette tips and reducing the volume of all tubing to 120ul, greatly reducing the loss of precious reagents and lowering costs. Compared with existing technologies, this solves the technical problem that some micro-liquid separation devices still require the purchase of special consumables, such as disposable pipette tips, which increases the cost of experiments.

[0025] Furthermore, the mounting column 6 is movably mounted on the crossbeam 5, and the crossbeam 5 is provided with a reciprocating moving assembly 1 capable of driving the mounting column 6 to move. The reciprocating moving assembly 1 includes a rack 13 fixedly mounted on the top of the crossbeam 5 and located inside the mounting column 6, a mounting block 14 fixedly mounted on the mounting column 6, a drive motor 15 fixedly mounted on the mounting block 14, a drive shaft 16 that rotates forward and backward via the drive motor 15, and a drive gear 17 that rotates forward and backward via the drive shaft 16 and meshes with the rack 13.

[0026] The mounting post 6 is movably fitted onto the crossbeam 5. A reciprocating moving assembly 1, capable of driving the mounting post 6, is mounted on the crossbeam 5. The reciprocating moving assembly 1 includes a rack 13 fixedly mounted on the top of the crossbeam 5 and located inside the mounting post 6. A mounting block 14 is fixedly mounted on the mounting post 6. A drive motor 15 is fixedly mounted on the mounting block 14. A drive shaft 16 is fixedly mounted at the output end of the drive motor 15. A drive gear 17, meshing with the rack 13, is fixedly mounted on the drive shaft 16. In use, the drive motor 15 is started, and its forward and reverse rotation moves the filling needle 8 back and forth. The drive motor 15 drives the drive shaft 16 to rotate, which in turn drives the drive gear 17 to rotate. The drive gear 17 meshes with the rack 13, allowing the mounting post 6 to move on the crossbeam 5, thereby moving the filling needle 8.

[0027] Furthermore, a horizontal plate 9 is fixedly provided on the top of the base plate 2, and a placement shell 10 is slidably provided on the top of the horizontal plate 9. The placement shell 10 can correspond to the position of the liquid injection needle 8, and a reaction cup can be placed inside the placement shell 10.

[0028] Furthermore, the top of the horizontal plate 9 is provided with a groove 11 corresponding to the placement shell 10, and a sliding column 12 fixedly connected to the placement shell 10 is slidably provided in the groove 11. In this way, the placement shell 10 can be slid on the horizontal plate 9.

[0029] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A microdispensing apparatus, characterized by: The application relates to a liquid adding device, which comprises a bottom plate (2), a stand column (3) fixedly arranged on the top of the bottom plate (2), a protection box (4) arranged on the top of the stand column (3), a plunger pump arranged in the protection box (4), a cross beam (5) fixedly arranged on the top of the stand column (3) and located on the lower side of the protection box (4), a mounting column (6) slidingly arranged on the cross beam (5), a mounting plate (7) fixedly arranged on the bottom of the mounting column (6), and a plurality of liquid adding needles (8) arranged on the mounting plate (7), wherein the liquid adding needles (8) are connected to the plunger pump through pipelines.

2. The microdispenser according to claim 1, characterized in that The mounting column (6) is movably sleeved on the cross beam (5), the cross beam (5) is provided with a reciprocating moving assembly (1) capable of driving the mounting column (6) to move, the reciprocating moving assembly (1) comprises a rack (13) fixedly arranged on the top of the cross beam (5) and located on the inner side of the mounting column (6), a mounting block (14) fixedly arranged on the mounting column (6), a driving motor (15) fixedly arranged on the mounting block (14), a driving shaft (16) capable of being positively and reversely rotated by the driving motor (15), and a driving gear (17) capable of being positively and reversely rotated by the driving shaft (16) and engaged with the rack (13).

3. The microdispenser according to claim 2, characterized in that The top of the bottom plate (2) is fixedly provided with a horizontal plate (9), the top of the horizontal plate (9) is slidingly provided with a placing shell (10), and the placing shell (10) can correspond to the position of the liquid adding needle (8).

4. The microdispenser according to claim 3, characterized in that The top of the horizontal plate (9) is provided with a sliding groove (11) corresponding to the placing shell (10), and the sliding groove (11) is slidingly provided with a sliding column (12) fixedly connected with the placing shell (10).

5. The microdispenser according to claim 4, characterized in that The top of the bottom plate (2) is further provided with a control module (18), and the plunger pump is electrically connected with the control module (18).

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