CN113236521A - Trace fluid processing device - Google Patents

Abstract

The invention relates to the technical field of fluid analysis, and discloses a fluid transfer device which comprises an upper shell, a first buckling piece, a lower shell, a first buckling piece, a body, a second buckling piece and a fluid transfer mechanism, wherein the upper shell is provided with a first clamping part; the first buckling piece is arranged on the upper shell, the first buckling piece is arranged on the lower shell, the upper shell is detachably connected with the lower shell through the matching of the first buckling piece and the first buckling piece, and an accommodating space is formed by the enclosing of the upper shell and the lower shell; the body is accommodated in the accommodating space, and a plurality of storage chambers for storing fluid samples are arranged in the body; the body is detachably connected with the lower shell through the matching of the second buckle piece and the second buckle piece; a fluid transfer mechanism is used to transfer the fluid sample between the plurality of storage chambers. Wherein, epitheca and inferior valve butt joint enclose into the accommodation space, and the body is protected by epitheca and inferior valve respectively, has improved barrier propterty from this, and trace fluid processing apparatus is difficult for receiving external influence and the precision appears inaccurate.

Description

Trace fluid processing device

Technical Field

The invention relates to the technical field of fluid analysis, in particular to a protective shell.

Background

Microfluidic processing devices are used to control the flow of microfluidic fluids and to chemically, optically, electronically, mechanically, thermally, or acoustically process microfluidic fluids.

In the microfluidic control mechanism disclosed in CN202011128352.7, the microfluidic control mechanism lacks a shield, and is exposed directly, which is likely to affect the microfluidic control mechanism, thereby affecting the precision of the microfluidic control mechanism.

Disclosure of Invention

The purpose of the invention is: provided is a microfluidic processing device having high barrier properties.

In order to achieve the above object, the present invention provides a micro fluid processing device, comprising an upper housing, a first fastener, a lower housing, a first fastener, a body, a second fastener, and a fluid transfer mechanism; the first buckling piece is arranged on the upper shell, the first buckling piece is arranged on the lower shell, the upper shell is detachably connected with the lower shell through the matching of the first buckling piece and the first buckling piece, and an accommodating space is formed by the enclosing of the upper shell and the lower shell; the body is accommodated in the accommodating space, and a plurality of storage chambers for storing fluid samples are arranged in the body; the body is detachably connected with the lower shell through the matching of the second buckle piece and the second buckle piece; a fluid transfer mechanism is used to transfer the fluid sample between the plurality of storage chambers.

Further, the first buckle piece comprises a first wedge-shaped block connected to the upper shell through an elastic piece; the first buckling piece comprises a first notch formed in the side wall of the lower shell, and the first wedge-shaped block is clamped in the first notch.

Further, a gap is formed between the first notch and at least one side wall of the first notch.

Further, the upper shell is provided with a first end face, the lower shell is provided with a second end face, and the first end face and the second end face are attached; the micro fluid processing device further comprises a protrusion arranged on the first end face and a recess arranged on the second end face; the protrusion is clamped into the recess, the end face of the protrusion abuts against the bottom wall of the recess, and the side face of the protrusion is attached to the side wall of the recess.

Further, the protrusion and the recess are respectively in a ring structure.

Furthermore, the first wedge-shaped block is connected to the protrusion, and a rectangular groove which is communicated with the first notch and is used for the first wedge-shaped block to pass through is formed in the bottom wall of the recess.

Furthermore, the number of the first wedge-shaped blocks and the number of the first gaps are multiple, the first wedge-shaped blocks correspond to the first gaps one to one, and the first wedge-shaped blocks are clamped in the corresponding first gaps.

Further, the second buckle piece comprises a second wedge-shaped block connected to the body through an elastic piece; the second buckling piece comprises a second notch formed in the side wall of the lower shell, and the second wedge-shaped block is clamped in the second notch.

The positioning device further comprises a clamping block arranged on the bottom surface of the body, a first positioning block arranged on the bottom wall of the lower shell and a second positioning block arranged on the bottom wall of the lower shell; the first positioning block and the second positioning block are arranged at intervals, and positioning grooves for clamping the clamping blocks are formed between the first positioning block and the second positioning block.

Furthermore, the number of the second wedge-shaped blocks and the number of the second gaps are multiple, the second wedge-shaped blocks correspond to the second gaps one by one, and the second wedge-shaped blocks are clamped in the corresponding second gaps.

Compared with the prior art, the trace fluid processing device provided by the embodiment of the invention has the beneficial effects that:

in the embodiment of the invention, the upper shell is in a half-surrounding structure, the lower shell is in a half-surrounding structure, the upper shell and the lower shell are detachably connected to be butted and surround the upper shell and the lower shell to form the accommodating space, and the body in the accommodating space is respectively protected by the upper shell and the lower shell, so that the protection performance of the trace fluid processing device is improved, and the trace fluid processing device is not easy to be influenced by the outside and has inaccurate precision.

Drawings

FIG. 1 is an exploded view of a microfluidic processing device according to an embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a of the microfluidic device according to the embodiment of the present invention.

FIG. 3 is a front view of a microfluidic processing device according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view B-B of fig. 3 of a microfluidic processing device according to an embodiment of the present invention.

Fig. 5 is an enlarged view at C in fig. 4 of the microfluidic device according to the embodiment of the present invention.

Fig. 6 is an enlarged view of fig. 4 at D of the microfluidic device according to the embodiment of the present invention.

In the figure, 1, a body; 11. a second fastener; 12. a clamping block; 13. a storage chamber; 2. an upper shell; 21. a first fastener; 22. a first end face; 23. a protrusion; 3. a lower case; 31. a first fastener; 32. a second fastener; 33. a second end face; 34. recessing; 35. a rectangular groove; 36. a first positioning block; 37. a second positioning block; 38. and (6) positioning a groove.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

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 defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

Example 1:

referring to fig. 1 to 6, a microfluidic processing device according to a preferred embodiment of the present invention includes an upper housing 2, a first locking member 21, a lower housing 3, a first locking member 31, a main body 1, a second locking member 11, a second locking member 32, and a fluid transfer mechanism; the first buckling piece 21 is arranged on the upper shell 2, the first buckling piece 31 is arranged on the lower shell 3, the upper shell 2 is detachably connected with the lower shell 3 through the matching of the first buckling piece 21 and the first buckling piece 31, and an accommodating space is formed by the enclosing of the upper shell 2 and the lower shell 3; the body 1 is accommodated in the accommodating space, and a plurality of storage chambers 13 for storing fluid samples are arranged in the body 1; the second buckling piece 11 is arranged on the body 1, the second buckling piece 32 is arranged on the lower shell 3, and the body 1 is detachably connected with the lower shell 3 through the matching of the second buckling piece 11 and the second buckling piece 32; a fluid transfer mechanism is used to transfer the fluid sample between the plurality of storage chambers 13.

In this embodiment, epitheca 2 is half-surrounding structure, and inferior valve 3 is half-surrounding structure, and the connection of dismantling of epitheca 2 and inferior valve 3 makes epitheca 2 and inferior valve 3 dock and enclose into the accommodation space, and body 1 that is in the accommodation space is protected by epitheca 2 and inferior valve 3 respectively, has improved trace fluid processing apparatus's barrier propterty from this, and trace fluid processing apparatus is difficult for receiving external influence and the precision appears inaccurate.

Wherein, set up on the lateral wall of inferior valve 3 with the accommodation space intercommunication and be used for supplying the intercommunicating pore that the magnet passed through, the magnet passes through the intercommunicating pore in order to form magnetic field in the accommodation space.

Wherein, still be equipped with the installation piece that is used for with fixing device adaptation on the lateral wall of inferior valve 3, trace fluid processing apparatus passes through the installation piece installation to be fixed on fixing device.

The body 1 includes a first seat and a second seat connected to the first seat, the fluid transfer mechanism is disposed on the second seat, and the plurality of storage chambers 13 are formed in the first seat respectively.

Example 2:

the present embodiment is modified based on embodiment 1, please refer to fig. 1 to 6.

The first buckle 21 comprises a first wedge-shaped block connected to the upper shell 2 through an elastic piece; the first buckling piece 31 comprises a first notch formed in the side wall of the lower shell 3, and the first wedge-shaped block is clamped in the first notch.

In this embodiment, at the in-process that epitheca 2 and inferior valve 3 are connected, epitheca 2 and inferior valve 3 are close to each other, and under the lateral wall effect of inferior valve 3, the elastic component between first wedge and the epitheca 2 takes place to deform, moves to the position of first breach until first wedge on, and the elastic component effect of first wedge between first wedge and epitheca 2 of this moment is gone into to first breach in the card.

In this embodiment, a connected mode of epitheca 2 and inferior valve 3 is provided, connects easy operation, can dock epitheca 2 and inferior valve 3 rapidly to protection body 1.

Preferably, the first notch communicates to the outer wall of the lower case 3. From this, when dismantling epitheca 2 and inferior valve 3, exert the effort through first breach to first wedge and make the elastic component between first wedge and the epitheca 2 take place deformation once more to allow epitheca 2 and inferior valve 3 to keep away from each other, until epitheca 2 breaks away from inferior valve 3 completely, the elastic component between first wedge and the epitheca 2 resumes deformation and drives first wedge and reset.

Example 3:

the present embodiment is improved based on embodiment 2, please refer to fig. 1 to 6.

The first gap and at least one side wall of the first gap form a gap.

From this, first wedge can be adjusted at certain extent in the position of first breach, when avoiding epitheca 2 and 3 docks of inferior valve to have the error, the problem that first wedge is difficult to the card to go into first breach appears.

Example 4:

the present embodiment is modified based on embodiment 3, please refer to fig. 1 to 6. The present embodiment is provided for facilitating the butt joint of the upper case 2 and the lower case 3.

The upper shell 2 has a first end face 22, the lower shell 3 has a second end face 33, and the first end face 22 and the second end face 33 are attached; the micro fluid processing device further comprises protrusions 23 provided on the first end face 22 and depressions 34 provided on the second end face 33; the protrusion 23 is snapped into the recess 34, an end surface of the protrusion 23 abuts against a bottom wall of the recess 34, and a side surface of the protrusion 23 is attached to a side wall of the recess 34.

In the process that the upper case 2 and the lower case 3 approach each other, the protrusion 23 and the recess 34 perform a positioning function, so that the upper case 2 and the lower case 3 are conveniently butted, and the relative position after the butting is determined.

Preferably, the protrusion 23 and the recess 34 are respectively of a ring structure. Further, the recess 34 is opened on the side wall of the lower case 3.

In other alternative embodiments, the number of the protrusions 23 and the number of the recesses 34 are respectively multiple, the multiple protrusions 23 are arranged at intervals around the annular first end surface 22, the multiple recesses 34 are arranged at intervals around the annular second end surface 33, and the multiple protrusions 23 are clamped into the corresponding recesses 34.

Example 5:

the present embodiment is improved based on embodiment 4, please refer to fig. 1 to 6.

The first wedge-shaped block is connected on the protrusion 23, and a rectangular groove 35 which is communicated with the first notch and is used for the first wedge-shaped block to pass through is arranged on the bottom wall of the recess 34.

When the upper shell 2 and the lower shell 3 are close to each other, the first wedge-shaped block is clamped into the first notch after passing through the rectangular groove 35.

Further, the width of the rectangular groove 35 is the same as the width of the first notch.

Example 6:

the present embodiment is improved based on embodiment 2, please refer to fig. 1 to 6.

First wedge with the quantity of first breach is a plurality of, and is a plurality of first wedge and first breach one-to-one, it is a plurality of first wedge card is located the correspondence first breach to improve the joint strength of epitheca 2 and inferior valve 3.

Example 7:

the present embodiment is modified based on embodiment 1, please refer to fig. 1 to 6.

The second buckle part 11 comprises a second wedge-shaped block connected to the body 1 through an elastic part; the second buckling piece 32 comprises a second notch formed in the side wall of the lower shell 3, and the second wedge-shaped block is clamped in the second notch.

In this embodiment, the lower case 3 and the body 1 are coupled before the upper case 2 and the lower case 3 are coupled. When the lower shell 3 is connected with the body 1, the body 1 is embedded into the lower shell 3 and moves towards the bottom wall of the lower shell 3; under the effect of 3 lateral walls of inferior valve, the elastic component between second wedge and the body 1 takes place deformation, on the second wedge removed the position to the second breach, and the second wedge is gone into to the second breach in under the elastic component effect of second wedge between second wedge and the body 1 this moment.

In this embodiment, a connection mode between the body 1 and the lower shell 3 is provided, the connection operation is simple, and the body 1 and the lower shell 3 can be rapidly butted so as to connect the upper shell 2.

Preferably, the second notch communicates to the outer wall of the lower case 3. From this, when dismantling body 1 and inferior valve 3, exert the effort through the second breach to the second wedge and make the elastic component between second wedge and the body 1 take place deformation once more to allow body 1 and inferior valve 3 to keep away from each other, until body 1 breaks away from inferior valve 3 completely, the elastic component between second wedge and the body 1 resumes deformation and drives the second wedge and reset.

Example 8:

this embodiment is modified based on embodiment 7, please refer to fig. 1 to 6.

The clamping device further comprises a clamping block 12 arranged on the bottom surface of the body 1, a first positioning block 36 arranged on the bottom wall of the lower shell 3, and a second positioning block 37 arranged on the bottom wall of the lower shell 3; the first positioning block 36 and the second positioning block 37 are arranged at intervals, and a positioning groove 38 for the clamping block 12 to be clamped in is formed between the first positioning block 36 and the second positioning block 37.

In this embodiment, through setting up joint piece 12, first locating piece 36 and second locating piece 37 for form the constant head tank 38 that supplies joint piece 12 card to go into between first locating piece 36 and the second locating piece 37, thereby when making body 1 and inferior valve 3 dock, the position is confirmed.

Preferably, the number of the clamping blocks 12, the first positioning blocks 36 and the second positioning blocks 37 is multiple, the clamping blocks 12, the first positioning blocks 36 and the second positioning blocks 37 are in one-to-one correspondence, the positioning grooves 38 are formed between the corresponding first positioning blocks 36 and the corresponding second positioning blocks 37, and each clamping block 12 is clamped into the positioning groove 38 formed between the corresponding first positioning blocks 36 and the corresponding second positioning blocks 37.

Example 9:

this embodiment is modified based on embodiment 7, please refer to fig. 1 to 6.

The second wedge with the quantity of second breach is a plurality of, and is a plurality of second wedge and second breach one-to-one, it is a plurality of the second wedge card is located the correspondence the second breach to improve the joint strength between body 1 and the inferior valve 3.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A micro-fluid processing apparatus, comprising

An upper shell;

the first buckle piece is arranged on the upper shell;

a lower case;

the first buckling piece is arranged on the lower shell; the upper shell is detachably connected with the lower shell through the matching of the first buckle piece and the first buckling piece, and an accommodating space is formed by the upper shell and the lower shell in a surrounding manner;

the body is accommodated in the accommodating space; a plurality of storage chambers for storing fluid samples are arranged in the body;

the second buckle piece is arranged on the body;

the second buckling piece is arranged on the lower shell; the body is detachably connected with the lower shell through the matching of the second buckle piece and the second buckling piece; and

a fluid transfer mechanism for transferring the fluid sample between the plurality of storage chambers.

2. The microfluidic processing device according to claim 1, wherein the first latch comprises a first wedge block connected to the upper housing by a resilient member;

the first buckling piece comprises a first notch formed in the side wall of the lower shell, and the first wedge-shaped block is clamped in the first notch.

3. The microfluidic device according to claim 2, wherein the first notch forms a gap with at least one side wall of the first notch.

4. The microfluidic processing device according to claim 3, wherein the upper housing has a first end face, the lower housing has a second end face, and the first end face and the second end face are attached;

the micro fluid processing device further comprises a protrusion arranged on the first end face and a recess arranged on the second end face;

the protrusion is clamped into the recess, the end face of the protrusion abuts against the bottom wall of the recess, and the side face of the protrusion is attached to the side wall of the recess.

5. The microfluidic device according to claim 4, wherein the protrusion and the recess each have a ring-shaped configuration.

6. The microfluidic device according to claim 5, wherein the first wedge block is connected to the protrusion, and a rectangular groove is formed in a bottom wall of the recess, the rectangular groove being communicated with the first notch and allowing the first wedge block to pass through.

7. The microfluidic processing device according to claim 2, wherein the first wedge blocks and the first notches are respectively provided in a plurality of numbers, the first wedge blocks and the first notches are in one-to-one correspondence, and the first wedge blocks are clamped in the corresponding first notches.

8. The microfluidic processing device according to claim 1, wherein the second locking member comprises a second wedge block connected to the body by an elastic member;

the second buckling piece comprises a second notch formed in the side wall of the lower shell, and the second wedge-shaped block is clamped in the second notch.

9. The microfluidic processing device according to claim 8, further comprising a clamping block disposed on the bottom surface of the body, a first positioning block disposed on the bottom wall of the lower housing, and a second positioning block disposed on the bottom wall of the lower housing;

the first positioning block and the second positioning block are arranged at intervals, and positioning grooves for clamping the clamping blocks are formed between the first positioning block and the second positioning block.

10. The microfluidic processing device according to claim 8, wherein the number of the second wedge-shaped blocks and the second notches are multiple, the second wedge-shaped blocks correspond to the second notches one by one, and the second wedge-shaped blocks are clamped in the corresponding second notches.

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