CN209772171U - Clamp device for micro-fluidic chip - Google Patents

Abstract

The utility model discloses a fixture device for micro-fluidic chip, it is unanimous to the tight dynamics of clamp of chip, the sample leakage problem when reducing the fluid and advancing the chip. The utility model provides a fixture device for micro-fluidic chip, includes base plate and clamp plate, be provided with the centre gripping chamber that is used for placing micro-fluidic chip on the base plate, fixture device still including rotationally set up in pressure head on the base plate and rotationally set up in through the second pivot handle on the base plate through first pivot, the handle rotationally connect in through the third pivot the pressure head, fixture device has the centre gripping state, works as fixture device is when the centre gripping state, the pressure head will the clamp plate compresses tightly on the base plate.

Description

Clamp device for micro-fluidic chip

Technical Field

The utility model relates to a micro-fluidic chip field, concretely relates to fixture device for micro-fluidic chip.

Background

The microfluidic chip technology integrates basic operation units of sample preparation, reaction, separation, detection and the like in biological, chemical and medical analysis processes into a micron-scale chip, and automatically completes the whole analysis process. At present, when a microfluidic chip is installed, the microfluidic chip and a pipeline are connected through a contact pin, adhesive and the like, but the connection methods are irreversible and cannot replace the chip, and a connection method for fixing the microfluidic chip through a clamp is also provided, but when the chip is replaced, all clamp parts need to be disassembled, so that the chip is inconvenient to install and disassemble, the use is inconvenient, and the chip tightening force cannot be adjusted.

The microfluidic chip fixture table disclosed in chinese patent 201820569479.4, in which the base and the cover plate are connected by a movable handle, facilitates the mounting and dismounting of the microfluidic chip, and can also adjust the clamping force of the microfluidic chip by turning the lock nut. However, the manner of turning the lock nut is difficult to achieve uniformity in force every time due to problems of operators, so that the clamping force becomes an experimental variable, and the accuracy of parallel experiments is difficult to achieve (or experimental result differences are caused by human factors). Loosening of the rotary nut can cause loosening of the chip and sample leakage of the sample; the nut is rotated tightly, which can cause certain damage to the chip and destroy a series of reactions occurring when the chip is contacted with the sample.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fixture device for micro-fluidic chip, it is unanimous to the tight dynamics of clamp of chip, the sample leakage problem when reducing the fluid and advancing the chip.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

The utility model provides a fixture device for micro-fluidic chip, includes base plate and clamp plate, be provided with the centre gripping chamber that is used for placing micro-fluidic chip on the base plate, fixture device still including rotationally set up in pressure head on the base plate and rotationally set up in through the second pivot handle on the base plate through first pivot, the handle rotationally connect in through the third pivot the pressure head, fixture device has the centre gripping state, works as fixture device is when the centre gripping state, the pressure head will the clamp plate compresses tightly on the base plate.

Preferably, the third pivot is located between the first pivot and the second pivot.

Preferably, the axes of the first pivot, the second pivot and the third pivot are parallel to each other.

More preferably, the axes of the first pivot, the second pivot and the third pivot extend horizontally.

Preferably, the base plate is provided with an elbow clamp, the pressure head is rotatably arranged on the elbow clamp through the first pivot, and the handle is rotatably arranged on the elbow clamp through the second pivot.

Preferably, the lower end of the ram forms a rubber crimp.

Preferably, one end of the pressure plate is rotatably connected to the base plate.

More preferably, an end portion of the pressure plate is rotatably connected to the base plate by a hinge.

Preferably, the clamping device further comprises a bottom plate, and the base plate is connected to the bottom plate through a stand column.

More preferably, the bottom of the bottom plate is provided with a plurality of rubber foot pads.

The utility model adopts the above scheme, compare prior art and have following advantage:

The utility model discloses in, press through normal running fit's handle and pressure head control, accomplish basically the unanimity of at every turn according to the pressure intensity, reduce the influence of human factor to the experimental result to make the tight dynamics of clamp unanimous, reduce the leakage appearance problem when the chip was advanced to the fluid. The utility model discloses well base plate and clamp plate compress tightly through the pressure head, have made things convenient for the installation and the dismantlement of chip, and the activity of effectively adjusting the pressure head through pressing down the handle need not the adjustment and presss from both sides tight dynamics moreover, has guaranteed the accurate positioning and the stability of chip.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a clamping device according to the present invention.

In the above-described figures of the drawings,

1. A substrate; 10. a clamping cavity; 11. an elbow clip; 2. pressing a plate; 21. a hinge; 3. a pressure head; 30. a rubber crimping part; 4. a handle; 5. a hexagonal column; 6. a base plate; 61. a rubber foot pad; 7. chip consumptive material clamp plate.

Detailed Description

The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables the advantages and features of the invention to be more readily understood by those skilled in the art. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

fig. 1 shows a clamping device for a microfluidic chip according to the present invention, which includes a substrate 1 and a pressing plate 2 that are matched with each other, and a clamping cavity 10 for placing the microfluidic chip is provided on the substrate 1. The clamping device further comprises a pressing head 3 rotatably arranged on the base plate 1 through a first pivot and a handle 4 rotatably arranged on the base plate 1 through a second pivot, wherein the handle 4 is rotatably connected to the pressing head 3 through a third pivot. The chucking device has a chucking state in which the pressing head 3 presses the pressing plate 2 against the substrate 1.

Specifically, the base plate 1 has an elbow clip 11 thereon, the indenter 3 is rotatably provided on a front end portion of the elbow clip 11 by a first pivot, and the handle 4 is rotatably provided on a rear end portion of the elbow clip 11 by a second pivot. The third pivot is located between the first pivot and the second pivot. The axes of the first pivot, the second pivot and the third pivot are parallel to each other and extend horizontally.

The end of the ram 3 forms a rubber crimp 30, the rubber crimp 30 being generally frustoconical, the smaller bottom surface of the rubber crimp 30 mating with the upper surface of the platen 2. When the jig device is in the clamped state, the smaller bottom surface of the rubber crimping portion 30 and the upper surface of the pressure plate 2 are in contact, thereby pressing the pressure plate 2.

One end part of the pressing plate 2 is rotatably connected to the base plate 1 through a hinge 21, and a through hole is formed in the middle part of the pressing plate 2.

The fixture device further comprises a bottom plate 6, and the base plate 1 is connected to the bottom plate 6 through a stand column. The stand is specifically hexagonal stand 5, connects respectively on the four corners of base plate 1. The bottom plate 6 can be matched with other instruments for use, and the height of the hexagonal upright post 5 can be adjusted. The bottom of the bottom plate 6 is provided with a plurality of rubber feet 61. The number of the rubber foot pads 61 is four, and the rubber foot pads are respectively fixedly arranged on four corners of the bottom surface of the bottom plate 6.

place chip consumptive material clamp plate 7 in the centre gripping chamber 10, the installation and the fixed of cooperation chip, the chip is arranged in chip consumptive material clamp plate 7, takes in a flexible way.

During the use, put the chip under chip consumptive material clamp plate 7 earlier, turn clamp plate 2, make clamp plate 2 and chip consumptive material clamp plate 7 close completely, pull handle 4, make rubber crimping portion 30 fall and fold clamp plate 2 and chip consumptive material clamp plate 7 closely.

the utility model discloses in, press through the control of normal running fit's handle 4 and pressure head 3, accomplish basically the unanimity of at every turn according to the pressure intensity, reduce the influence of human factor to the experimental result to make the clamp dynamics unanimous, reduce the leakage appearance problem when the chip was advanced to the fluid. The utility model discloses well base plate 1 and clamp plate 2 compress tightly through pressure head 3, have made things convenient for the installation and the dismantlement of chip, and through the activity of pressing down handle 4 effective regulation rubber crimping portion 30, need not adjustment clamping force degree moreover, have guaranteed the accurate positioning and the stability of chip. The utility model discloses an anchor clamps device simple structure, the suitability is strong, and the cost is with low costs, can remove in a flexible way to, can look over the behavior of chip in real time through set up viewing aperture and space respectively on clamp plate 2 and base plate 1. The hexagonal column 5 is designed to allow the fixture device to be used in conjunction with other instrument heights for a series of operations.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are preferred embodiments, which are intended to enable persons skilled in the art to understand the contents of the present invention and to implement the present invention, and thus, the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the principles of the present invention are intended to be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a fixture device for micro-fluidic chip, includes base plate and clamp plate, be provided with the centre gripping chamber that is used for placing micro-fluidic chip on the base plate, its characterized in that: the clamp device further comprises a pressure head rotatably arranged on the substrate through a first pivot and a handle rotatably arranged on the substrate through a second pivot, the handle is rotatably connected to the pressure head through a third pivot, the clamp device has a clamping state, and when the clamp device is in the clamping state, the pressure head presses the pressure plate onto the substrate.

2. The clamp device recited in claim 1, wherein: the third pivot is located between the first pivot and the second pivot.

3. The jig device according to claim 1 or 2, wherein: the axes of the first pivot, the second pivot and the third pivot are parallel to each other.

4. The clamp device recited in claim 3, wherein: the axes of the first pivot, the second pivot and the third pivot extend horizontally.

5. The clamp device recited in claim 1, wherein: the base plate is provided with an elbow clamp, the pressure head is rotatably arranged on the elbow clamp through the first pivot, and the handle is rotatably arranged on the elbow clamp through the second pivot.

6. The clamp device recited in claim 1, wherein: the lower end of the pressure head forms a rubber crimping part.

7. The clamp device recited in claim 1, wherein: one end of the pressure plate is rotatably connected to the base plate.

8. The clamp device recited in claim 7, wherein: one end of the pressure plate is rotatably connected to the base plate through a hinge.

9. The clamp device recited in claim 1, wherein: the fixture device further comprises a bottom plate, and the base plate is connected to the bottom plate through the stand column.

10. The clamp device recited in claim 9, wherein: the bottom of the bottom plate is provided with a plurality of rubber foot pads.