CN217856234U

CN217856234U - Positioning structure for manufacturing micro-fluidic chip

Info

Publication number: CN217856234U
Application number: CN202221887430.6U
Authority: CN
Inventors: 王东岳; 崔化先; 周旭
Original assignee: Beitai Display Technology Ganzhou Co ltd
Current assignee: Beitai Display Technology Ganzhou Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-22
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a positioning structure for making micro-fluidic chip for the position of chip bottom plate and glass apron of adjusting micro-fluidic chip, wherein include: the adjusting bottom plate is arranged along the horizontal direction; the XY adjusting platform is connected with the adjusting bottom plate and is used for driving the adjusting bottom plate to move along the length direction or the width direction; the bearing plate is provided with a bearing surface, and the chip bottom plate is partially positioned on the bearing surface and partially positioned in the space-avoiding area; the elastic supporting assembly is arranged between the bearing plate and the adjusting bottom plate; the bearing surface of the bearing plate is pressed and compressed by the elastic support assembly to descend below the surface of the glass cover plate or is rebounded by the elastic support assembly to ascend above the surface of the glass cover plate. The problem of fixed loading board can't carry out position control among the prior art, cause the use of tool to have the limitation is solved.

Description

Positioning structure for manufacturing micro-fluidic chip

Technical Field

The utility model relates to a micro-fluidic chip preparation equipment field especially relates to a positioning structure for making micro-fluidic chip.

Background

The microfluidic technology is a technology for accurately controlling and controlling micro-scale fluid, and can integrate basic operation units such as sample preparation, reaction, separation, detection and the like in a biochemical analysis process on a micron-scale chip to automatically complete the whole analysis process. The microfluidic technology has the advantages of less sample consumption, high detection speed, simple and convenient operation, multifunctional integration, small volume, convenience in carrying and the like, and has great application potential in the fields of biology, chemistry, medicine and the like.

The micro-fluidic chip comprises a glass cover plate and a chip bottom plate (aluminum bottom plate), wherein the glass cover plate and the chip bottom plate are bonded to form the micro-fluidic chip, and a plurality of liquid storage tanks are formed between the glass cover plate and the chip bottom plate. The limiting part of the existing jig for limiting the glass cover plate is fixedly arranged, the position of the bearing plate for bearing the chip baseplate is also fixed, and the chip baseplate is covered on the glass cover plate after the bearing plate is pressed down, so that the assembly is realized. But fixed loading board is because the position is unregulated, and when the specification of chip bottom plate is different or chip bottom plate position on the loading board and the position of the glass apron of below are not right time, just can't carry out position control, and the use that causes the tool has the limitation.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned prior art not enough, the utility model aims to provide a positioning structure for making micro-fluidic chip has solved fixed loading board and can't carry out position adjustment among the prior art, causes the problem that the use of tool has the limitation.

The technical scheme of the utility model as follows:

a positioning structure for manufacturing a microfluidic chip is used for adjusting the positions of a chip bottom plate and a glass cover plate of the microfluidic chip, wherein the positioning structure comprises: the adjusting bottom plate is arranged along the horizontal direction;

the XY adjusting platform is connected with the adjusting bottom plate and is used for driving the adjusting bottom plate to move along the length direction or the width direction;

the bearing plate is provided with a space avoiding area for avoiding the glass cover plate, the bearing plate is provided with a bearing surface, and the chip bottom plate is partially positioned on the bearing surface and partially positioned in the space avoiding area;

the elastic support assembly is arranged between the bearing plate and the adjusting bottom plate;

the bearing surface of the bearing plate is lowered below the surface of the glass cover plate by the compression of the elastic support assembly or is raised above the surface of the glass cover plate by the resilience of the elastic support assembly.

Further, set up threaded hole on the regulation bottom plate, the elastic support subassembly includes:

the supporting screw penetrates through the bearing plate and is connected in the threaded hole;

and one end of the elastic piece is connected to the adjusting bottom plate, and the other end of the elastic piece is connected to the bearing plate.

Furthermore, the adjusting bottom plate is L-shaped, and the L-shaped adjusting bottom plate is positioned on the outer side of the glass cover plate;

the elastic support assembly is provided with a plurality of, and a plurality of the elastic support assembly distributes on L shape adjusting bottom plate.

Furthermore, a limiting groove is formed in the bearing plate and located at the edges of two sides of the keep-out area along the length direction, the chip bottom plate is located in the limiting groove, and the bottom surface of the limiting groove is the bearing surface.

Furthermore, a hook hole is formed in one end of the chip bottom plate in the length direction;

and a limiting part matched with the hook hanging hole is arranged in the limiting groove.

Further, the limiting part is a spherical limiting part.

Further, the positioning structure further comprises: the fixed bottom plate is fixedly connected with the XY adjusting table, and the adjusting bottom plate moves relative to the fixed bottom plate through driving of the XY adjusting table.

Further, a pin hole is formed in the fixed bottom plate.

The beneficial effect of this scheme: the utility model provides a positioning structure for making micro-fluidic chip connects the loading board on adjusting the bottom plate through the elastic support subassembly, through XY adjusting station, adjusts adjusting the bottom plate, makes adjusting the bottom plate drive the loading board and removes along X direction or Y direction. When the chip base plate is used, the chip base plate is placed on the bearing plate, so that the chip base plate can be driven to be adjusted to a correct position (right above the glass cover plate) along the X direction or the Y direction by adjusting the movement of the base plate. Through pushing down the bearing plate, the elastic supporting component compresses, so that the chip bottom plate is pushed down, the chip bottom plate is attached to the glass cover plate below, and the assembly of the microfluidic chip is completed. When the carrier plate is not pressed, the resilient support assembly springs back to rise above the surface of the glass cover plate. The assembled microfluidic chip is convenient to take down.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a positioning structure for manufacturing a microfluidic chip according to the present invention;

fig. 2 is a schematic structural diagram of another form of embodiment of a positioning structure for manufacturing a microfluidic chip according to the present invention;

fig. 3 is a schematic diagram of an embodiment of a positioning structure for manufacturing a microfluidic chip according to the present invention in use;

fig. 4 is a cross-sectional view of an embodiment of a positioning structure for manufacturing a microfluidic chip according to the present invention.

The reference numbers in the figures: 20. a chip chassis; 21. a hooking hole; 100. fixing the bottom plate; 110. a pin hole; 200. an XY stage; 300. adjusting the bottom plate; 310. a threaded hole; 400. a carrier plate; 410. avoiding an empty area; 420. a limiting groove; 421. a limiting member; 500. an elastic support member; 510. a support screw; 520. an elastic member.

Detailed Description

The utility model provides a positioning structure for making micro-fluidic chip and be used for making micro-fluidic chip's positioning structure, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and more clear, and it is right that the following refers to the figure and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed in a specific direction, and operate, and therefore, the terms describing the positional relationships in the drawings are used only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the above terms according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, the utility model provides a positioning structure for making microfluidic chip bears microfluidic chip's chip bottom plate 20 through positioning structure to a position of adjusting chip bottom plate 20 and glass apron, wherein, positioning structure includes: an XY-adjusting stage 200, an adjusting base plate 300, a bearing plate 400, and an elastic support assembly 500. The adjusting bottom plate 300 is arranged along the horizontal direction, and the outline of the adjusting bottom plate on the horizontal plane is similar to a rectangle. The longitudinal direction is the longitudinal direction (X direction), and the short-side direction is the width direction (Y direction). The XY adjusting stage 200 is connected to the adjusting base plate 300, and is configured to drive the adjusting base plate 300 to move in a length direction or a width direction; the XY adjustment stage 200 is fixedly disposed, and the adjustment base plate 300 may be connected to a moving end of the XY adjustment stage 200 through a bracket, so that the XY adjustment stage 200 may be driven to move in a length direction or in a width direction by the XY adjustment stage 200. The elastic support assembly 500 is disposed between the loading plate 400 and the adjustment base plate 300, and the loading plate 400 is located above the adjustment base plate 300. The carrier plate 400 is provided with a space-avoiding region 410 for avoiding the glass cover plate, the carrier plate 400 is provided with a bearing surface located at an edge of the space-avoiding region 410, and the chip bottom plate 20 is partially located on the bearing surface and partially located in the space-avoiding region 410. The carrying surface of the carrier plate 400 is lowered below the surface of the glass cover plate by the compression of the elastic support assembly 500 or raised above the surface of the glass cover plate by the rebound of the elastic support assembly 500.

As shown in fig. 2 and 3, according to the above-mentioned scheme, the bearing plate 400 is connected to the adjustment base plate 300 through the elastic support assembly 500, and the adjustment base plate 300 is adjusted through the XY adjustment stage 200, so that the adjustment base plate 300 drives the bearing plate 400 to move along the X direction or the Y direction. In use, the bottom board 20 is placed on the carrier 400, so that the movement of the adjusting board 300 can drive the bottom board 20 to adjust to the correct position (directly above the glass cover plate) along the X direction or the Y direction. By pressing the carrier plate 400 down, the elastic support assembly 500 compresses, thereby pressing the chip bottom plate 20 down, attaching the chip bottom plate 20 to the glass cover plate below, and completing the assembly of the microfluidic chip. When the loading plate 400 is not pressed, the elastic support assembly 500 rebounds to rise above the surface of the glass cover plate. The assembled microfluidic chip is convenient to take down.

As shown in fig. 1 and fig. 4, in the specific structure of this embodiment, a threaded hole 310 is formed on the adjusting base plate 300, and the elastic supporting assembly 500 specifically includes: a support screw 510, and an elastic member 520. The supporting screw 510 penetrates the loading plate 400 and is connected to the threaded hole 310, and one end of the elastic member 520 is connected to the adjustment base plate 300 and the other end is connected to the loading plate 400. The loading plate 400 can move up and down along the supporting screw 510 and be lifted up by the elastic force of the elastic member 520. The elastic member 520 in this embodiment is a spring, and the spring is sleeved in the supporting screw 510.

As shown in fig. 2 and 3, the adjusting base plate 300 in this embodiment is provided in an L shape, and the L-shaped adjusting base plate 300 is located at the outer side of the glass cover plate; the elastic support assembly 500 is provided in plurality, and the plurality of elastic support assemblies 500 are distributed on the L-shaped adjustment base plate 300. The rectangular adjustment base plate 300 is cut off at one corner to form an L-shape. The L-shape is mainly adapted to the structure of the underlying supporting glass cover plate, or can be directly configured as a square plate, and the clearance area 410 is square and located above the glass cover plate. Other shapes may also be provided.

The loading plate 400 is provided with a limiting groove 420, the limiting groove 420 is located at two side edges of the keep-out area 410 along the length direction, the chip bottom plate 20 is located in the limiting groove 420, and the bottom surface of the limiting groove 420 is the loading surface. The limiting groove 420 may be disposed on the half-open structure of the L-shaped bearing plate 400, and may support three sides of the chip bottom plate 20, or may be formed with a clamping groove on a side wall of the limiting groove 420, so as to clamp and insert one side of the chip bottom plate 20 into the clamping groove, thereby limiting the chip bottom plate 20. If the loading board 400 is configured as a square board, the space 410 is set to be larger, and the loading board 400 can also move in the XY direction with enough space.

As shown in fig. 1, 2 and 3, a hooking hole 21 is formed at one end of the chip bottom plate 20 in the longitudinal direction in the present embodiment; a limiting member 421 matched with the hooking hole is arranged in the limiting groove 420. The position of the bottom chip board 20 can be limited in the position-limiting groove 420 by the position-limiting member 421 engaging with the hooking hole of the bottom chip board 20. The limiting member 421 is a spherical limiting member 421.

The positioning structure in this embodiment further includes: a fixed base plate 100, the fixed base plate 100 being fixedly connected to the XY-adjusting stage 200, the adjusting base plate 300 being moved relative to the fixed base plate 100 by driving of the XY-adjusting stage 200. The fixed base 100 provides a support position for the XY stage 200 to fix the XY stage 200. The fixed base plate 100 is provided with a pin hole 110. The pin hole is used for being matched with other structures of the jig through a bolt, so that the jig is more convenient to assemble.

To sum up, the utility model provides a positioning structure for making micro-fluidic chip connects loading board 400 on adjusting bottom plate 300 through elastic support subassembly 500, through XY adjusting station 200, adjusts adjusting bottom plate 300, makes adjusting bottom plate 300 drive loading board 400 and removes along X direction or Y direction. In use, the bottom board 20 is placed on the carrier 400, so that the movement of the adjusting board 300 can drive the bottom board 20 to adjust to the correct position (directly above the glass cover plate) along the X direction or the Y direction. By pressing the carrier plate 400 down, the elastic support assembly 500 compresses, thereby pressing the chip bottom plate 20 down, attaching the chip bottom plate 20 to the glass cover plate below, and completing the assembly of the microfluidic chip. When the loading plate 400 is not pressed, the elastic support assembly 500 rebounds to rise above the surface of the glass cover plate. The assembled microfluidic chip is convenient to take down.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A positioning structure for manufacturing a microfluidic chip is used for adjusting the positions of a chip bottom plate and a glass cover plate of the microfluidic chip, and is characterized by comprising: the adjusting bottom plate is arranged along the horizontal direction;

2. The positioning structure for manufacturing microfluidic chips according to claim 1, wherein the adjusting base plate has a threaded hole, and the elastic support assembly comprises:

3. The positioning structure for manufacturing microfluidic chips according to claim 2, wherein the adjusting bottom plate is L-shaped, and the L-shaped adjusting bottom plate is located on the outer side of the glass cover plate;

4. The position adjusting structure for manufacturing microfluidic chips according to claim 1, wherein the supporting board is provided with a position limiting groove, the position limiting groove is located at two side edges of the space avoiding area along the length direction, the chip bottom board is located in the position limiting groove, and the bottom surface of the position limiting groove is the supporting surface.

5. The positioning structure for manufacturing microfluidic chips according to claim 4, wherein a hook hole is formed at one end of the chip bottom plate in the length direction;

6. The positioning structure for manufacturing microfluidic chips according to claim 5, wherein the position-limiting member is a spherical position-limiting member.

7. The positioning structure for manufacturing microfluidic chips according to claim 6, further comprising: the fixed bottom plate is fixedly connected with the XY adjusting table, and the adjusting bottom plate moves relative to the fixed bottom plate through the driving of the XY adjusting table.

8. The positioning structure for manufacturing microfluidic chips according to claim 7, wherein the fixing bottom plate is provided with a pin hole.