CN218658632U - Micro-fluidic chip anchor clamps - Google Patents

Abstract

The utility model relates to a chip technology field discloses a micro-fluidic chip anchor clamps. The micro-fluidic chip clamp comprises a clamp body, a gland and a clamping piece, wherein the clamp body is provided with a containing groove, and the containing groove is used for containing a micro-fluidic chip. The gland is hinged with the clamp body and can cover the clamp body. The joint spare is connected in anchor clamps body or gland, and the joint spare includes joint portion, and joint portion includes the spigot surface, and the spigot surface closes the lid of gland or anchor clamps body and leads to make things convenient for joint portion joint gland or anchor clamps body. The mounting or dismounting of the microfluidic chip can be conveniently completed by rotating the gland. The joint spare can be with gland and the tight fixed position of anchor clamps body, and the direction closes to lead in the lid of gland or anchor clamps body to make things convenient for joint portion joint gland or anchor clamps body. And the gland can be conveniently pressed or opened by clamping the clamping piece or keeping away from the gland or the clamp body. The whole structure is simple, the requirement on the operation space is low, and the working efficiency is high.

Description

Micro-fluidic chip anchor clamps

Technical Field

The utility model relates to a chip technology field, in particular to micro-fluidic chip anchor clamps.

Background

The microfluidic technology is a technology for accurately controlling micro-volume fluid by utilizing the physical characteristics of liquid drops in a microchannel and a microfluidic chip, and is widely applied to the fields of biology, medicine, chemical industry and the like.

When the micro-fluidic chip is used, the micro-fluidic chip is required to be installed in the micro-fluidic chip clamp, the external liquid supply system and the collection system are connected with the micro-fluidic chip through the micro-fluidic chip clamp, and the micro-fluidic chip clamp plays a role in fixing the chip and facilitating the connection of the chip and an external system.

The existing microfluidic chip clamp has a complex structure, and when a chip is mounted or taken out, the whole microfluidic chip clamp needs to be disassembled, so that the requirement on operation space is high, and the efficiency of mounting or taking out the chip is greatly reduced. And the pressing structure of the existing microfluidic chip clamp is also complex, and the chip can be pressed only by carrying out a plurality of steps when the chip is pressed, so that the working efficiency is reduced.

Therefore, a microfluidic chip holder is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a micro-fluidic chip anchor clamps makes things convenient for micro-fluidic chip's installation or dismantlement, and overall structure is simple, requires lowly to operating space, has improved work efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

a microfluidic chip holder, comprising:

the clamp comprises a clamp body, wherein a containing groove is formed in the clamp body and is used for containing a microfluidic chip;

the gland is hinged with the clamp body and can cover the clamp body;

joint spare, joint spare are connected in anchor clamps body or gland, and joint spare includes joint portion, and joint portion includes the spigot surface, and the spigot surface leads to closing the lid of gland or anchor clamps body to make things convenient for joint portion joint gland or anchor clamps body.

Preferably, joint portion still includes the face that compresses tightly, and the face that compresses tightly can compress tightly gland or anchor clamps body to joint gland or anchor clamps body.

Preferably, the guide surface is an inclined plane, the pressing surface is a horizontal plane, and an included angle alpha between the guide surface and the pressing surface is an acute angle.

Preferably, the clamping piece is detachably connected with the clamp body or the pressing cover.

Preferably, the side of the clamp body is provided with a groove penetrating along the first direction, so that the width of the clamp body at the groove is smaller than that of the microfluidic chip.

Preferably, the snap-in member is attached to the bottom of the recess.

Preferably, a plurality of gaskets are arranged between the clamping piece and the bottom of the groove, so that the clamping piece is matched with the size of the microfluidic chip.

Preferably, the receiving groove penetrates through the jig body in the second direction.

Preferably, a transparent plate is arranged on the gland to facilitate observation of the microfluidic chip.

Preferably, the microfluidic chip clamp further comprises a connector, wherein one end of the connector is communicated with an external pipeline, and the other end of the connector is provided with a sealing ring and communicated with the microfluidic chip.

The utility model has the advantages that:

the utility model provides a micro-fluidic chip anchor clamps, micro-fluidic chip can arrange the storage tank of anchor clamps body in, and the gland is connected with anchor clamps body is articulated, rotates the gland and can conveniently accomplish micro-fluidic chip's installation or dismantlement. The joint spare can be with gland and the tight fixed position of anchor clamps body, and is provided with the spigot surface in the joint portion of joint spare, and the spigot surface is closed the lid of gland or anchor clamps body and is led to make things convenient for joint portion joint gland or anchor clamps body. And the clamping piece is clamped or is far away from the gland or the clamp body, so that the gland can be conveniently pressed or opened, and the microfluidic chip can be conveniently mounted or dismounted. Overall structure is simple, and is low to operating space requirement, has improved work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a microfluidic chip fixture according to an embodiment of the present invention;

FIG. 2 is a schematic view of a clamp body according to an embodiment of the present invention at an angle;

FIG. 3 is a schematic view of a clamp body at another angle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a clip member according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view at a in fig. 4.

In the figure:

100. a microfluidic chip clamp; 200. a microfluidic chip; 300. an external pipeline;

1. a clamp body; 11. a containing groove; 111. a cushion pad; 12. a groove; 13. blind holes; 14. mounting holes;

2. a gland; 21. a transparent plate; 22. a through hole;

3. a clamping piece; 31. a clamping part; 311. a guide surface; 312. a compression surface; 32. connecting holes;

4. a bolt;

5. a gasket;

6. a connector; 61. a seal ring;

7. a rotating shaft; 71. a pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a micro-fluidic chip clamp which can be used in the technical field of chips.

As shown in fig. 1, the microfluidic chip fixture 100 includes a fixture body 1, a pressing cover 2 and a clamping member 3, wherein a containing groove 11 is disposed on the fixture body 1, and the containing groove 11 is used for containing the microfluidic chip 200. The gland 2 is hinged with the clamp body 1, and the gland 2 can cover the upper part of the clamp body 1. Joint spare 3 is connected in anchor clamps body 1 or gland 2, as shown in fig. 1, fig. 4, fig. 5, joint spare 3 includes joint portion 31, and joint portion 31 includes guiding surface 311, and guiding surface 311 closes to gland 2 or the lid of anchor clamps body 1 and leads to make things convenient for joint portion 31 joint gland 2 or anchor clamps body 1. In this embodiment, the engaging member 3 is connected to the clamp body 1, and the guide surface 311 guides the cover of the cover 2. In other embodiments, the clamping member 3 may also be connected to the pressing cover 2, and may be flexibly configured as required, which is not limited herein.

The specific process of mounting the microfluidic chip 200 is as follows: the microfluidic chip 200 is placed in the containing groove 11 of the fixture body 1, and the gland 2 is rotated to cover the gland 2. Meanwhile, the guide surface 311 of the clamping member 3 guides the cover of the gland 2, so that the clamping portion 31 of the clamping member 3 is clamped with the gland 2 or the clamp body 1, and the installation of the microfluidic chip 200 is completed. When the micro-fluidic chip 200 needs to be disassembled, the clamping piece 3 is far away from the gland 2, and the gland 2 is turned over, so that the micro-fluidic chip 200 can be disassembled.

The cover 2 is rotated to conveniently complete the mounting or dismounting of the microfluidic chip 200. And the guide surface 311 guides the cover of the gland 2 or the clamp body 1, thereby facilitating the clamping of the clamping part 31 with the gland 2 or the clamp body 1. The joint spare 3 can be with gland 2 and the tight fixed position of anchor clamps body 1, and with 3 joints of joint spare or keep away from gland 2 or anchor clamps body 1 can conveniently compress tightly or open gland 2. Overall structure is simple, and is low to operating space requirement, has improved work efficiency.

Preferably, as shown in fig. 1, the microfluidic chip fixture 100 further includes a rotating shaft 7, the rotating shaft 7 sequentially penetrates through the fixture body 1 and the gland 2, and both the gland 2 and the fixture body 1 can rotate around the rotating shaft 7, so as to realize the hinged connection between the gland 2 and the fixture body 1. In other embodiments, the gland 2 and the clamp body 1 may be connected by other connection methods such as a hinge connection, and the connection is not limited as long as the gland 2 and the clamp body 1 can be connected in a hinged manner.

Preferably, as shown in fig. 1, a pin 71 is disposed at an end of the rotating shaft 7, and after the pin 71 is inserted into the end of the rotating shaft 7, the rotating shaft 7 is prevented from being removed from the gland 2 and the clamp body 1, thereby improving the reliability of the hinged connection between the gland 2 and the clamp body 1. In this embodiment, the pin 71 is a cotter pin, and the installation and the detachment are both convenient. In other embodiments, the pin 71 may also be a cylindrical pin, a conical pin, or the like, and may be flexibly disposed according to needs, which is not limited herein.

Preferably, as shown in fig. 1, the cover 2 is provided with a transparent plate 21, and the microfluidic chip 200 can be observed through the transparent plate 21, so that the condition of the liquid in the microfluidic chip 200 can be conveniently monitored in real time to determine the progress of the experiment.

Preferably, as shown in fig. 1 and 2, the receiving groove 11 penetrates through the fixture body 1 along the second direction Y, so that the receiving groove 11 has only two side walls, and compared to a conventional receiving groove structure having side walls all around, the through receiving groove 11 is easier to process, reduces the processing cost, and facilitates taking the microfluidic chip 200. In other embodiments, the accommodating groove 11 may only penetrate through the fixture body 1 in the positive direction or the negative direction of the second direction Y, so that the accommodating groove 11 has three side walls, which also reduces the processing cost and facilitates taking the microfluidic chip 200.

Preferably, as shown in fig. 1, a buffer pad 111 is disposed in the receiving groove 11, and the buffer pad 111 can absorb a part of the pressure of the pressing cover 2, so as to prevent the microfluidic chip 200 from being crushed. In this embodiment, the bottom and one side wall of the accommodating groove 11 are both provided with the buffer pads 111, which can fully protect the microfluidic chip 200. In other embodiments, the buffer pads 111 may be disposed on the bottom and the two side walls of the receiving groove 11, as long as the microfluidic chip 200 can be protected, which is not limited herein.

Preferably, as shown in fig. 1, the number of the clamping members 3 is two, and the two clamping members 3 can more firmly press the gland 2, so that the reliability of the microfluidic chip clamp 100 is improved. In other embodiments, the number of the clamping members 3 may also be one, three, four, and the like, and the clamping members may be flexibly arranged according to needs, which is not limited herein.

Preferably, as shown in fig. 1, the clamping member 3 is detachably connected to the clamp body 1, and when the clamping member 3 is worn or damaged, the clamping member 3 can be conveniently replaced.

Specifically, as shown in fig. 1-4, the connecting hole 32 is formed in the clamping piece 3, the blind hole 13 is formed in the clamp body 1, the internal thread is formed in the blind hole 13, the bolt 4 penetrates through the connecting hole 32 and is screwed into the blind hole 13, the clamping piece 3 can be installed, the convenience of assembling and disassembling the clamping piece 3 is improved, and the clamping piece 3 can be replaced conveniently.

Preferably, the clamping member 3 has certain elasticity, and when the gland 2 needs to be opened, the clamping member 3 is applied with force, so that the clamping portion 31 of the clamping member 3 is far away from the gland 2. Specifically, the clip 3 is made of a metal sheet or plastic or the like that can be elastically deformed. In other embodiments, the clip member 3 may also be made of other materials with elasticity, and may be flexibly configured as required, which is not limited herein.

Preferably, as shown in fig. 1, 4 and 5, the clamping portion 31 of the clamping member 3 further includes a pressing surface 312, and the pressing surface 312 can be pressed on the upper end of the gland 2 to clamp the gland 2. When gland 2 pushes down, gland 2 pushes down along guide surface 311, and gland 2 upper end and the looks butt of pressing down face 312 afterwards to make joint spare 3 joint gland 2. The guide surface 311 facilitates the pressing down of the gland 2, improving the working efficiency. In other embodiments, the fastening portion 31 of the fastening member 3 may also be a hemispherical structure, an ellipsoidal structure, or the like, as long as it is convenient to fasten the gland 2, and the invention is not limited thereto.

Preferably, the guide surface 311 is an inclined plane, the pressing surface 312 is a horizontal plane, and an included angle α between the guide surface 311 and the pressing surface 312 is an acute angle. The inclined plane is easier to guide the pressing of the gland 2, and the horizontal plane is more reliable to compress the gland 2. The included angle α between the guide surface 311 and the pressing surface 312 is an acute angle, so that the inclination of the inclined plane is more suitable for guiding the pressing of the gland 2. In this embodiment, the included angle α is preferably 45 ° to 60 ° to facilitate the pressing down of the pressing cover 2 along the guide surface 311. In other embodiments, the included angle α may be smaller than 45 ° or larger than 60 °, as long as the included angle α is an acute angle and facilitates the pressing down of the gland 2 along the guide surface 311.

Preferably, as shown in fig. 1 and 2, the side edge of the clamp body 1 is provided with a groove 12 penetrating in the first direction X, so that the width of the clamp body 1 at the groove 12 is smaller than the width of the microfluidic chip 200, and therefore the microfluidic chip 200 is easier to take at the groove 12, and the microfluidic chip 200 is convenient to mount or dismount. In other embodiments, the groove 12 may only penetrate through the side of the fixture body 1 in the positive direction of the first direction X, and the microfluidic chip 200 is also convenient to take.

Preferably, both sides of the fixture body 1 are provided with a longitudinally through groove 12, and the two grooves 12 facilitate taking the microfluidic chip 200. In other embodiments, the number of the grooves 12 may also be one, three or other numbers, and may be flexibly arranged according to needs, which is not limited herein.

Preferably, as shown in fig. 1, the clamping member 3 is installed at the bottom of the groove 12 of the clamp body 1, so that the clamping member 3 can clamp the gland 2 more tightly.

Preferably, a plurality of gaskets 5 can be arranged between the clamping pieces 3 and the bottom of the groove 12, and the distance between the two clamping pieces 3 can be adjusted by adjusting the thickness or the number of the gaskets 5, so that the distance between the two clamping pieces 3 is adaptive to the width of the microfluidic chip 200, the phenomenon that the distance between the clamping pieces 3 is not adaptive to the width of the microfluidic chip 200 due to the machining error of the microfluidic chip 200 is avoided, and the clamping effect of the microfluidic chip clamp 100 on the microfluidic chip 200 is reduced. It should be noted that the width of the cover 2 is larger than the width of the microfluidic chip 200, so the distance between the two clamping members 3 is not larger than the width of the cover 2, and the clamping members 3 can always clamp the cover 2.

Preferably, as shown in fig. 1, the microfluidic chip clamp 100 further includes a connector 6, a tail portion of the connector 6 can be inserted into an external pipeline 300, a top portion of the connector 6 is sleeved with a sealing ring 61, and the gland 2 is provided with a through hole 22. After the sealing ring 61 is sleeved on the top of the connector 6, the connector 6 penetrates through the through hole 22, so that one end of the sealing ring 61 is sleeved on the connector 6, and the other end of the sealing ring 61 penetrates through the through hole 22 to abut against the microfluidic chip 200, thereby forming a sealing path between the connector 6 and the microfluidic chip 200, further forming a sealing path between the external pipeline 300 and the microfluidic chip 200, facilitating the transmission of liquid into the microfluidic chip 200, performing related test work, and simultaneously avoiding the leakage of the liquid.

The microfluidic chip 200 is generally provided with two liquid inlet holes and one liquid outlet hole, and correspondingly, in this embodiment, as shown in fig. 1, three connectors 6 are provided, each connector 6 is communicated with the external pipeline 300, wherein two connectors 6 are respectively communicated with two liquid inlet holes of the microfluidic chip 200, and one connector 6 is communicated with a liquid outlet hole of the microfluidic chip 200, thereby facilitating the liquid transmission.

Preferably, the outer side of the connector 6 is provided with an external thread, and the inner side of the through hole 22 is provided with an internal thread, wherein the external thread is matched with the internal thread. The coupling head 6 is screwed into the through hole 22 so that the coupling head 6 is more securely mounted in the through hole 22. In addition, after the connector 6 is screwed into the through hole 22, the connector 6 is pressed by the internal thread of the through hole 22, so that the connector 6 is slightly deformed, and the connection between the connector 6 and the external pipeline 300 is more tight and reliable.

Preferably, as shown in fig. 2 and 3, the holder body 1 is provided with a plurality of mounting holes 14, and the mounting holes 14 can be connected with a test instrument in a matching manner, so as to fix the microfluidic chip holder 100 in the test instrument. In this embodiment, the number of the mounting holes 14 is four, so that the microfluidic chip holder 100 is more stably fixed in the testing apparatus. In other embodiments, the number of the mounting holes 14 may be one, two, three, or the like, and the mounting holes may be flexibly arranged according to needs, which is not limited herein.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and for those skilled in the art, there are variations on the specific embodiments and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. Microfluidic chip anchor clamps, its characterized in that includes:

the clamp comprises a clamp body (1), wherein a containing groove (11) is formed in the clamp body (1), and the containing groove (11) is used for containing a microfluidic chip (200);

the gland (2) is hinged with the clamp body (1), and the gland (2) can cover the clamp body (1);

joint spare (3), joint spare (3) connect in anchor clamps body (1) or gland (2), joint spare (3) are including joint portion (31), joint portion (31) are including spigot surface (311), spigot surface (311) are right gland (2) or the lid of anchor clamps body (1) closes and leads, with convenient joint portion (31) joint gland (2) or anchor clamps body (1).

2. The fixture for microfluidic chips according to claim 1, wherein the clamping portion (31) further comprises a pressing surface (312), and the pressing surface (312) can press the cover (2) or the fixture body (1) to clamp the cover (2) or the fixture body (1).

3. The fixture for microfluidic chip according to claim 2, wherein the guide surface (311) is an inclined plane, the pressing surface (312) is a horizontal plane, and an included angle α between the guide surface (311) and the pressing surface (312) is an acute angle.

4. The microfluidic chip holder according to claim 1, wherein the clip (3) is detachably connected to the holder body (1) or the cover (2).

5. Microfluidic chip holder according to claim 1, wherein the side of the holder body (1) is provided with a groove (12) running through in a first direction such that the width of the holder body (1) at the groove (12) is smaller than the width of the microfluidic chip (200).

6. The microfluidic chip holder according to claim 5, wherein the clip (3) is attached to the bottom of the groove (12).

7. The clamp for holding a microfluidic chip according to claim 6, wherein a plurality of spacers (5) are disposed between the clip (3) and the bottom of the groove (12) to match the size of the clip (3) and the microfluidic chip (200).

8. Microfluidic chip holder according to anyone of claims 1 to 6, wherein the receiving slot (11) penetrates the holder body (1) in a second direction.

9. The microfluidic chip holder according to any one of claims 1 to 6, wherein a transparent plate (21) is provided on the cover (2) to facilitate viewing of the microfluidic chip (200).

10. The microfluidic chip clamp according to any one of claims 1 to 6, further comprising a connector (6), wherein one end of the connector (6) is communicated with an external pipeline (300), and the other end is provided with a sealing ring (61) and is communicated with the microfluidic chip (200).

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