Clamping device for microfluidic disc

Abstract

The utility model provides a clamping device for a microfluidic disc. The clamping device comprises a plurality of clamping jaws, the multiple clamping jaws are arranged on the guide module, and the guide module is arranged on the bearing part; the rotating part is provided with a plurality of limiting modules allowing the sliding part to enter and slide, the distance from the limiting modules to the rotating center of the rotating part is gradually increased in the clockwise direction, and the sliding part is connected with the clamping jaw; the driving module is used for driving the rotating piece to rotate. The clamping device has the advantages of being accurate in clamping and the like.

Description

Technical Field

[0001] This utility model relates to microfluidics technology, and in particular to a clamping device for microfluidic disks. Background Technology

[0002] In recent years, bioanalytical technologies have developed rapidly, among which microfluidic chip technology has gained widespread attention and favor in scientific research and experimental applications. As a novel detection platform, microfluidic chip technology has advantages such as high throughput, portability, ease of operation, low cost, and integration, and has been widely used in many fields.

[0003] The analysis requires automated gripping of the microfluidic disk. Current methods utilize stepper motors to drive grippers on multiple guide rails to move, thereby gripping and releasing the microfluidic disk. The drawback of this approach is:

[0004] 1. Insufficient gripping force, and the translation of multiple grippers is easily out of sync, resulting in unstable gripping.

[0005] 2. Cannot be used for stacking to prevent microfluidic disks from being clamped. Summary of the Invention

[0006] To address the shortcomings of the existing technical solutions, this utility model provides a clamping device for microfluidic disks.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A microfluidic disk gripping device includes multiple grippers; the microfluidic disk gripping device further includes:

[0009] The guide module and the carrier are provided, wherein the plurality of grippers are respectively disposed on the guide module and the guide module is disposed on the carrier;

[0010] A rotating component and a sliding component, the rotating component having multiple limiting modules that allow the sliding component to enter and slide, the distance from the limiting modules to the center of the rotating component gradually increasing in a clockwise direction, the sliding component being connected to the gripper;

[0011] A drive module is provided for driving the rotating component to rotate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Accurate clamping;

[0014] By using a combination of rotating and sliding components, the rotational motion is converted into the translation of the grippers. The translation of each gripper is synchronized, thereby clamping and releasing the disc-shaped microfluidic disk.

[0015] The barb and chamfer design at the bottom of the gripper allows the gripper to accurately grasp the top layer of the stacked microfluidic disks;

[0016] The drive module uses a lead screw motor, which provides greater gripping force and is less prone to losing its footing;

[0017] 2. Stable clamping;

[0018] The design of the inner buffer component on the vertical section of the gripper enables the gripper to stably grasp the microfluidic disk. Attached Figure Description

[0019] The disclosure of this utility model will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are merely illustrative of the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. In the drawings:

[0020] Figure 1 This is a simplified structural diagram of the microfluidic disk clamping device according to the present invention;

[0021] Figure 2 This is a partial structural diagram of the microfluidic disk clamping device according to the present invention;

[0022] Figure 3 This is a simplified structural diagram of the gripper according to this utility model. Detailed Implementation

[0023] Figures 1-3 The following description illustrates optional embodiments of the present invention to teach those skilled in the art how to implement and reproduce it. For the purpose of teaching the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations or substitutions derived from these embodiments will be within the scope of the present invention. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present invention. Therefore, the present invention is not limited to the following optional embodiments, but is defined only by the claims and their equivalents.

[0024] Example 1

[0025] like Figure 1 As shown, a microfluidic disk gripping device according to an embodiment of the present invention includes:

[0026] Multiple grippers 11, the grippers 11 being used to grasp disc-shaped microfluidic disks;

[0027] Multiple grippers 31 are respectively disposed on the guide module, and the guide module is disposed on the carrier 31;

[0028] like Figure 2As shown, the rotating member 41 has a plurality of limiting modules 42 that allow the sliding member 13 to enter and slide. Along the clockwise direction, the distance from the limiting module 42 to the rotation center of the rotating member 41 gradually increases. The sliding member 13 is connected to the gripper 11.

[0029] The drive module 32 is used to drive the rotating component 41 to rotate.

[0030] To ensure stable gripping of the microfluidic disk, the included angles between adjacent grippers 11 are also the same.

[0031] To accurately grip the microfluidic disk, the gripper 11 further has barbs 12 at its bottom.

[0032] To stably grip the microfluidic disk, a buffer 21 is further provided on the inner side of the vertical section of the gripper 11, and protrudes outward.

[0033] To facilitate and accurately grip the stacked microfluidic disks, the head 14 of the barb 12 is further designed with a chamfer.

[0034] Example 2

[0035] Application example of the microfluidic disk clamping device in Embodiment 1 of this utility model.

[0036] In this application example, such as Figure 1 As shown, the support component 31 is a support plate, and the drive module 32 is a lead screw motor fixed to the upper side of the support plate. The rotating shaft passes through the support plate and is connected to the rotation center of the rotating component 41. The rotating component 41 is a triangular rotating disk. The support component 31 is mounted on the three-dimensional robotic arm.

[0037] Three grippers 11 are arranged on the guide groove on the lower side of the carrier 31, and have barbs 12 at the bottom end. The included angle between adjacent grippers 11 is 120 degrees.

[0038] like Figure 2 As shown, the rotating component 41 has three identical limiting modules 42 evenly distributed around its circumference. Specifically, these modules employ arc-shaped limiting through holes (the distance between the center of the circle containing the three arc-shaped limiting through holes and the rotation center is equal and not zero; the included angle between adjacent (center and rotation center) lines is the same, all being 120 degrees). The distance from the arc-shaped limiting through holes to the rotation center increases clockwise. The sliding component 13 is a bearing, located within the arc-shaped limiting through holes and fixed to the gripper 11. When the rotating component 41 rotates, the sliding component 13, sliding within the arc-shaped limiting through holes, drives the gripper 11 to translate forward or backward, thereby gripping or releasing the disc-shaped microfluidic disk.

[0039] like Figure 3As shown, a buffer 21, such as an elastic rubber component, is provided on the inner side of the vertical section of the gripper 11, and the head of the barb 12 has a chamfer 14.

[0040] The clamping device in this embodiment operates as follows:

[0041] The three-dimensional robotic arm drive carrier 31 is located on the upper side of the stacked microfluidic disk and then moves downward.

[0042] The lead screw motor drives the rotating disk to rotate clockwise, driving the gripper 11 to translate towards the rotation center of the rotating component 41 (the three grippers 11 translate synchronously and by the same distance). The barb 12 enters between the first layer of microfluidic disk and the second layer of microfluidic disk. The outer edge of the first layer of microfluidic disk contacts the buffer 21, and the buffer 21 is squeezed, so that the first layer of microfluidic disk is clamped between the three grippers 11.

[0043] The three-dimensional robotic arm moves the carrier 31 to the predetermined position.

[0044] The lead screw motor drives the rotating disk to rotate counterclockwise, driving the grippers 11 to translate away from the rotation center towards the rotating component 41 (the translation distance of the three grippers 11 is the same), thereby releasing the microfluidic disk and placing the microfluidic disk in the predetermined position.

[0045] Example 3

[0046] The application example of the microfluidic disk clamping device in Embodiment 1 of this utility model differs from Embodiment 2 in that:

[0047] 1. The guide module uses a linear guide rail and is located on the lower side of the carrier plate. The grippers are mounted on the linear guide rail.

[0048] 2. An arc-shaped limiting groove is provided on the rotating disk, and the sliding component 13 is set in the arc-shaped limiting groove.

Claims

1. A gripping device for microfluidic disks, comprising multiple grippers; characterized in that, The microfluidic disk gripping device further includes: The guide module and the carrier are provided, wherein the plurality of grippers are respectively disposed on the guide module and the guide module is disposed on the carrier; A rotating component and a sliding component, the rotating component having multiple limiting modules that allow the sliding component to enter and slide, the distance from the limiting modules to the rotation center of the rotating component gradually increasing in a clockwise direction, the sliding component being connected to the gripper; A drive module is provided for driving the rotating component to rotate.

2. The microfluidic disk gripping device according to claim 1, characterized in that, The included angle between adjacent grippers is the same.

3. The microfluidic disk gripping device according to claim 1, characterized in that, The guide module is a guide groove or guide rail.

4. The microfluidic disk gripping device according to claim 1, characterized in that, The rotating component is a rotating disk, the limiting module is a limiting groove or a limiting through hole, and the sliding component is a bearing.

5. The microfluidic disk gripping device according to claim 1, characterized in that, The gripper has barbs at the bottom.

6. The microfluidic disk gripping device according to claim 5, characterized in that, The vertical section of the gripper has a buffer element on its inner side, which protrudes outward.

7. The microfluidic disk gripping device according to claim 5, characterized in that, The head of the barb is chamfered.

8. The microfluidic disk gripping device according to claim 1, characterized in that, The drive module is a lead screw motor, which is fixed on the support component.

9. The microfluidic disk gripping device according to claim 8, characterized in that, The shaft of the lead screw motor passes through the support member and is connected to the rotating member.

10. The microfluidic disk gripping device according to claim 1, characterized in that, The clamping device further includes: A three-dimensional robotic arm, wherein the carrier is fixed on the three-dimensional robotic arm.

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