An electrophoretic microfluidic chip glue filling device

Abstract

The utility model discloses an electrophoresis micro -fluidic chip glue filling device, including work platform, the upper end position department of work platform is fixed with fixed column, the inside position department of fixed column is fixed with limit post, the outer wall position department of limit post is sleeved with support frame, the lower end position department of fixed column is provided with stainless steel spring B, when using, the chip is placed in the inside position department of X axle sliding block, and the chip is clamped through the clamping plate, and the clamping plate is adhered to the outer wall position department of chip through the elastic force of stainless steel spring A, and this mode can clamp the chip of different sizes, after completing the chip clamping, the staff controls X axle sliding block and moves, and can move back and forth through Y axle moving plate, and X axle sliding block moves laterally at the upper end position department of Y axle moving plate, so that the staff only needs to control the chip and moves, and through this mode, the flexibility of use can be increased.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrophoretic microfluidic chip potting device, specifically relating to an electrophoretic microfluidic chip potting device. Background Technology

[0002] Electrophoresis microfluidic chip gel applicators are precision laboratory tools designed specifically for accurately filling the electrophoresis channels of microfluidic chips with gel materials. They typically consist of a transparent gel reservoir, a graduated propulsion device, and a slender, sharp dispensing needle. Their core function is to precisely inject gel solutions such as agarose and polyacrylamide into the micron-level channels inside the microfluidic chip using controlled pressure or propulsion speed. This ensures uniform gel filling without the generation of air bubbles, providing a stable separation medium for subsequent chip-based biomolecular electrophoretic separation experiments. They are widely used in fields such as bioanalysis and clinical diagnostics.

[0003] Traditional electrophoretic microfluidic chip dispensing machines require a clamping device to be placed on a work platform before dispensing. However, there is no clamping device at the top of the work platform, so the operator needs to hold the chip in place by hand. Furthermore, the chip must be moved while dispensing to ensure that the needle dispenses the glue to the designated location, which is very inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide an electrophoretic microfluidic chip potting device to solve the problem mentioned in the background art that when using a traditional electrophoretic microfluidic chip potting device, the clamping device is placed on the work platform and then the potting work begins. However, there is no clamping device at the upper end of the work platform, and the operator needs to hold it in place by hand. In addition, the chip needs to be moved while potting so that the needle can pour the glue into the designated position, which is very inconvenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrophoretic microfluidic chip potting device, comprising a working platform, a fixing post fixed at the upper end of the working platform, a limiting post fixed inside the fixing post, a support frame sleeved on the outer wall of the limiting post, a stainless steel spring B provided at the lower end of the fixing post, the stainless steel spring B wrapped around the outer wall of the limiting post, a ring fixed at the front end of the support frame, a syringe body inserted into the inner part of the ring, a push rod provided inside the syringe body, and a needle inserted into the lower end of the syringe body;

[0006] The working platform has a groove inside, and a Y-axis sliding plate that can slide back and forth is fitted inside the groove. An X-axis slider that can move laterally is installed at the upper end of the Y-axis sliding plate. Multiple stainless steel springs A are fixed on the left and right sides of the upper end of the X-axis slider. A telescopic column is fixed at the other end of the stainless steel springs A, and a clamping plate is fixed at the other end of the telescopic column.

[0007] Preferably, a piston is provided at the lower end of the push rod, and the piston is attached to the inner wall of the syringe body.

[0008] Preferably, the needle is inserted into the syringe body, and the needle can dispense glue under the push of the push rod.

[0009] Preferably, when the syringe body is pressed down, the support frame moves downward.

[0010] Preferably, the support frame moves along the outer wall of the limiting post, and the movement of the support frame compresses the stainless steel spring B.

[0011] Preferably, a base is fixed at the four corners of the lower end of the work platform, the Y-axis moving plate can move back and forth at the inner side of the groove, and the Y-axis moving plate drives the X-axis slider at the upper end to move.

[0012] Preferably, two clamping plates are provided at the upper inner side of the X-axis slider, and the two clamping plates are used to clamp the chip.

[0013] Preferably, the clamping plate can move when subjected to compressive force, causing the telescopic column to enter the internal position of the X-axis slider.

[0014] Compared with the prior art, this utility model provides an electrophoretic microfluidic chip potting device, which has the following beneficial effects:

[0015] When using this device, the chip is placed inside the X-axis slider and clamped by a clamping plate. The clamping plate is held in place by the elastic force of a stainless steel spring A against the outer wall of the chip, thus fixing its position. This method can clamp chips of different sizes. After clamping the chip, the operator controls the X-axis slider to move, and the Y-axis moving plate can move back and forth. The X-axis slider moves laterally at the upper end of the Y-axis moving plate. In this way, the operator only needs to control the movement of the chip, which increases the flexibility of use.

[0016] The syringe body can be inserted into the inner position of the ring to start the glue pouring. This connection method can be disassembled at any time, which makes it easy to add glue to the syringe body when using it. When using it, pressing down on the syringe body will make it contact the chip. After use, the elastic force of the stainless steel spring B will complete the rebound. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an electrophoretic microfluidic chip potting device according to the present invention.

[0018] Figure 2 This is a schematic diagram of the split structure of an electrophoretic microfluidic chip potting device according to the present invention.

[0019] Figure 3 This is a schematic diagram of the X-axis slider structure of an electrophoretic microfluidic chip potting device according to the present invention.

[0020] Figure 4 This is a schematic cross-sectional view of the fixing column structure of an electrophoretic microfluidic chip potting device according to the present invention.

[0021] In the diagram: 1. Syringe body; 2. Push rod; 3. Support frame; 4. Fixed column; 5. Clamping plate; 6. Telescopic column; 7. X-axis slider; 8. Base; 9. Working platform; 10. Groove; 11. Y-axis moving plate; 12. Needle; 13. Ring; 14. Stainless steel spring A; 15. Limiting column; 16. Stainless steel spring B. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The utility model provides, for example Figure 1-4 The electrophoretic microfluidic chip potting device shown includes a working platform 9. A fixing post 4 is fixed at the upper end of the working platform 9. A limiting post 15 is fixed inside the fixing post 4. A support frame 3 is sleeved on the outer wall of the limiting post 15. A stainless steel spring B16 is provided at the lower end of the fixing post 4 and is wound around the outer wall of the limiting post 15. A ring 13 is fixed at the front end of the support frame 3. A syringe body 1 is inserted into the inner part of the ring 13. A push rod 2 is provided, and a needle 12 is inserted into the lower end of the syringe body 1. A groove 10 is provided inside the working platform 9. A Y-axis moving plate 11 that can slide back and forth is sleeved inside the groove 10. An X-axis slider 7 that can move laterally is installed at the upper end of the Y-axis moving plate 11. Multiple stainless steel springs A14 are fixed on the left and right sides of the upper end of the X-axis slider 7. A telescopic column 6 is fixed at the other end of the stainless steel spring A14. A clamping plate 5 is fixed at the other end of the telescopic column 6.

[0026] First, the piston is pulled back by the push rod 2, and the negative pressure formed inside the syringe is used to draw the glue into the glue receiving cavity from the outside. Then, the syringe body 1 is inserted into the inner position of the ring 13. The chip is moved to the corresponding needle 12 by the Y-axis moving plate 11 and the X-axis slider 7. The syringe body 1 is moved downward and the push rod 2 is slowly pushed. The piston moves forward and squeezes the glue in the glue receiving cavity. The glue is then injected into the chip channel through the needle 12 interface and the needle 12, completing the glue pouring operation.

[0027] like Figure 1 and Figure 3As shown, a piston is provided at the lower end of the push rod 2. The piston is attached to the inner wall of the syringe body 1. The needle 12 is inserted into the syringe body 1. The needle 12 can dispense glue under the push of the push rod 2. When the syringe body 1 is pressed down, the support frame 3 moves downward. The support frame 3 moves along the outer wall of the limiting post 15. The movement of the support frame 3 compresses the stainless steel spring B16. The base 8 is fixed at the four corners of the lower end of the work platform 9. The Y-axis moving plate 11 can move back and forth in the inner side of the groove 10. The Y-axis moving plate 11 drives the X-axis slider 7 at the upper end to move. Two clamping plates 5 are provided at the inner side of the upper end of the X-axis slider 7. The two clamping plates 5 are used to clamp the chip. When the clamping plates 5 are subjected to pressure, they can move, so that the telescopic post 6 enters the inner position of the X-axis slider 7.

[0028] The chip is placed inside the X-axis slider 7 and clamped by the clamping plate 5. The clamping plate 5 is attached to the outer wall of the chip by the elastic force of the stainless steel spring A14, so that its position is fixed. This method can clamp chips of different sizes. After the chip is clamped, the operator controls the X-axis slider 7 to move. It can move back and forth through the Y-axis moving plate 11. The X-axis slider 7 moves laterally at the upper end of the Y-axis moving plate 11.

[0029] 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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. A microfluidic electrophoresis chip potting device, characterized in that, The device includes a work platform (9), a fixed column (4) is fixed at the upper end of the work platform (9), a limit column (15) is fixed inside the fixed column (4), a support frame (3) is sleeved on the outer wall of the limit column (15), a stainless steel spring B (16) is provided at the lower end of the fixed column (4), and the stainless steel spring B (16) is wrapped around the outer wall of the limit column (15). A ring (13) is fixed at the front end of the support frame (3), a syringe body (1) is inserted into the inner position of the ring (13), a push rod (2) is provided inside the syringe body (1), and a needle (12) is inserted into the lower end of the syringe body (1). The working platform (9) has a groove (10) inside. A Y-axis moving plate (11) that can slide back and forth is sleeved inside the groove (10). An X-axis slider (7) that can move laterally is installed at the upper end of the Y-axis moving plate (11). Multiple stainless steel springs A (14) are fixed on the left and right sides of the upper end of the X-axis slider (7). A telescopic column (6) is fixed at the other end of the stainless steel springs A (14). A clamping plate (5) is fixed at the other end of the telescopic column (6).

2. The electrophoretic microfluidic chip potting device according to claim 1, characterized in that: A piston is provided at the lower end of the push rod (2), and the piston is attached to the inner wall of the syringe body (1).

3. The electrophoretic microfluidic chip potting device according to claim 1, characterized in that: The needle (12) is inserted into the syringe body (1), and the needle (12) can dispense glue under the push of the push rod (2).

4. The electrophoretic microfluidic chip potting device according to claim 1, characterized in that: When the syringe body (1) is pressed down, the support frame (3) moves downward.

5. The electrophoretic microfluidic chip potting device according to claim 4, characterized in that: The support frame (3) moves along the outer wall of the limiting post (15), and the movement of the support frame (3) compresses the stainless steel spring B (16).

6. The electrophoretic microfluidic chip potting device according to claim 1, characterized in that: The work platform (9) has a base (8) fixed at the four corners of the lower end. The Y-axis moving plate (11) can move back and forth at the inner side of the groove (10). The Y-axis moving plate (11) drives the X-axis slider (7) at the upper end to move.

7. The electrophoretic microfluidic chip potting device according to claim 1, characterized in that: Two clamping plates (5) are provided on the inner side of the upper end of the X-axis slider (7), and the two clamping plates (5) are used to clamp the chip.

8. The electrophoretic microfluidic chip potting device according to claim 7, characterized in that: When the clamping plate (5) is subjected to compressive force, it can move, causing the telescopic column (6) to enter the internal position of the X-axis slider (7).

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