CN114263784A - Microfluid regulation and control device - Google Patents
Microfluid regulation and control device Download PDFInfo
- Publication number
- CN114263784A CN114263784A CN202111490828.6A CN202111490828A CN114263784A CN 114263784 A CN114263784 A CN 114263784A CN 202111490828 A CN202111490828 A CN 202111490828A CN 114263784 A CN114263784 A CN 114263784A
- Authority
- CN
- China
- Prior art keywords
- push rod
- electromagnet
- valve body
- metal
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a microfluid regulation and control device, which comprises a microfluid chip, a self-adaptive liquid driving structure and a spring valve body structure, wherein the microfluid chip consists of a thin film back plate, a thin film and a fixed plate, the thin film is clamped between the thin film back plate and the fixed plate, the fixed plate is provided with a first space, a valve body placing space and a second space, the thin film back plate is provided with a liquid injection port, the liquid injection port is positioned above the first space and used for injecting liquid into a first liquid storage bin, a flow channel gap is formed between the thin film and the thin film back plate and extends from the first liquid storage bin to a second liquid storage bin, the spring valve body structure is arranged in the valve body placing space and used for controlling the opening or closing of the flow channel gap, the self-adaptive liquid driving structure is arranged at the first space and used for providing extrusion force for the first liquid storage bin, and when the spring valve body structure is opened, the liquid in the first liquid storage bin is pushed to the flow channel gap, enters the second liquid storage bin through the flow passage gap. The invention has good driving effect and good flow blocking effect.
Description
Technical Field
The invention belongs to the technical field of microfluidics, and particularly relates to a microfluid regulating and controlling device.
Background
Microfluidics generally refers to fluids flowing in a micron-scale space, and the scientific technology for controlling and processing the flow of microfluidics is called microfluidics, and the technology relates to multiple fields such as chemistry, fluid physics, microelectronics, new materials, biology and biomedical engineering, and is an emerging interdisciplinary discipline. The microfluidic chip integrates the basic functions of laboratories such as chemistry, biology and the like into a chip with the size of only a few square centimeters, and uses the microfluidic technology to carry out the manipulation and the processing of liquid. It is widely applied to the relevant fields of cell analysis, nucleic acid extraction, nucleic acid amplification, biochemical detection, immunodetection and the like.
The prior commonly used micro-fluidic valves comprise various valves such as pneumatic valves, paraffin valves, heating valves, electromagnetic valves, valves formed by motor stretching and retracting, and the like. Among the valves, the pneumatic valve needs a special air source, and the external air source may generate pollution; some microfluidic valves have poor transportability and can only be used in a certain microfluidic device; the paraffin valve can be used only once and cannot be operated repeatedly. Some microfluidic valves have complex structures, so that a microfluidic platform is too large, and the microfluidic platform is not convenient to process, assemble and use; the existing valve of the electromagnetic valve needs the support of an external device, is a normally open valve, can control the opening and closing of the valve only in the power-on state, is not beneficial to transportation and storage, and cannot well realize the effect of the valve.
Disclosure of Invention
Based on the problems of the microfluidic valves in the prior art, the invention provides a novel microfluidic regulating device.
The microfluid regulating and controlling device provided by the invention adopts the spring and the metal block as the valve structure, and the normally closed valve is a normally closed valve without external equipment, so that the structure is simple, and the flow blocking effect is good; the valve control device is an electromagnet, is easy to obtain, has strong universality and can be repeatedly used; the self-adaptive magnetoelectric liquid driving structure adopts a special articulated structure, has a self-adaptive adjusting function, can better compensate errors in the production and assembly processes, and has good accuracy and quick response; the liquid storage mode is a film bulging type, the cost is low, and the operation is easy.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a microfluid regulation and control device, which comprises a microfluid chip, a self-adaptive liquid driving structure and a spring valve body structure,
the microfluidic chip consists of a film back plate, a film and a fixing plate, wherein the film back plate, the film and the fixing plate are arranged in parallel, the film is clamped between the film back plate and the fixing plate,
the fixing plate is provided with a first space, a valve body placing space and a second space which penetrate through the upper side and the lower side of the fixing plate, the valve body placing space is positioned between the first space and the second space, the film is not pressed by the fixing plate at the first space and the second space, the film is allowed to deform to form a first liquid storage bin and a second liquid storage bin respectively,
the film back plate is provided with a liquid injection port which is positioned above the first space and used for injecting liquid into the first liquid storage bin,
a flow passage gap is formed between the film and the film back plate, the flow passage gap extends from the first liquid storage bin to the second liquid storage bin,
the spring valve body structure is arranged in the valve body placing space and used for controlling the opening or closing of the flow passage gap,
the self-adaptive liquid driving structure is arranged in the first space and used for providing extrusion force for the first liquid storage bin, and when the spring valve body structure is opened, liquid in the first liquid storage bin is pushed to the flow passage gap and enters the second liquid storage bin through the flow passage gap.
In one embodiment of the invention, the spring valve body structure is composed of a valve body device and an electromagnet, the valve body structure is a normally closed valve body structure, the valve body device is composed of a metal block and a spring, the metal block and the spring are embedded into a valve body placing space of the fixed plate from the upper side, the outer diameter of the spring is larger than the lower end outlet of the valve body placing space, a mechanical limit is formed, a force towards a film is generated, the metal block is forced to be tightly pressed on the flow channel gap, and the flow channel gap is closed; when the electromagnet is electrified, attraction force is generated, the spring force is overcome, the metal block is attracted downwards, and the gap of the flow channel is opened.
In one embodiment of the invention, the metal block is composed of two cylinders with different diameters, the diameter of the cylinder with a large diameter is larger than that of the spring inner ring, the diameter of the cylinder with a small diameter is smaller than or equal to that of the spring inner ring, and the cylinder with a small diameter is matched with the spring and is placed into the valve body placing space from the upper end of the valve body placing space.
In one embodiment of the present invention, the size of the spring can be changed according to the required pressure, so as to obtain a larger or smaller valve pressure, and achieve the purpose of controlling valves with different flow sizes.
In one embodiment of the present invention, the electromagnet comprises an electromagnet housing, an electromagnet metal rod, an electromagnet coil skeleton and an electromagnet electromagnetic coil, wherein the electromagnet metal rod is located in the middle of the electromagnet housing, the electromagnet coil skeleton is located outside the electromagnet metal rod, the electromagnet electromagnetic coil is wound on the electromagnet coil skeleton, the electromagnet electromagnetic coil is communicated with an external power supply, the electromagnet metal rod is located below the metal block, when the electromagnet electromagnetic coil passes through current, a magnetic field is generated, the magnetic field acts on the electromagnet metal rod, the electromagnet metal rod generates attraction, the metal block is influenced by the attraction, the spring force is overcome, the metal block moves downwards, the flow channel gap is opened, i.e., the valve is opened, and liquid can flow in the flow channel gap.
In one embodiment of the invention, the electromagnet housing is fixed to the fastening plate.
In one embodiment of the invention, the adaptive liquid driving structure is composed of an adaptive piston and an electromagnetic push rod device, after the electromagnetic push rod device is electrified, the electromagnetic push rod device pushes the adaptive piston to move, and the raised first liquid storage bin is subjected to extrusion force of the adaptive piston. When the spring valve body structure is opened, liquid in the first liquid storage bin is pushed to the flow passage gap and enters the second liquid storage bin through the flow passage gap.
In one embodiment of the invention, when the electromagnetic push rod device acts on the adaptive piston, the adaptive piston is subjected to force, and the angle of the adaptive piston is adaptively adjusted according to the angle between the surface of the film and the horizontal plane.
In one embodiment of the invention, the electromagnetic push rod device comprises a metal push rod, a push rod device shell, a push rod device electromagnetic coil and a push rod device coil framework, wherein the metal push rod is positioned in the middle of the push rod device shell, the push rod device coil framework is positioned on the outer side of the metal push rod, the push rod device electromagnetic coil is wound on the push rod device coil framework, the lower part of the metal push rod is restrained by a spring, the push rod device electromagnetic coil is communicated with an external power supply, the electromagnetic metal rod is positioned below the adaptive piston, when the push rod device electromagnetic coil passes through current, a magnetic field is generated, the magnetic field acts on the metal push rod, the metal push rod moves upwards to overcome spring force to push the adaptive piston to extrude the first liquid storage bin, when the spring valve body structure is opened, liquid in the first liquid storage bin is pushed to a flow channel gap to enter the second liquid storage bin through the flow channel gap, the control of the liquid is realized.
In one embodiment of the invention, the size of the adaptive piston is adapted to the size of the first space, and the electromagnetic push rod device pushes the adaptive piston to realize the driving of the liquid.
In one embodiment of the invention, the pusher housing is fixed to the fixed plate.
In an embodiment of the present invention, an adaptive piston groove is formed on the adaptive piston, a metal push rod circular push head is formed above the metal push rod, the metal push rod circular push head is located in the adaptive piston groove, the adaptive piston groove is completely engaged with the metal push rod circular push head, and the adaptive piston groove and the metal push rod circular push head form an adaptive function. When the force of the electromagnetic push rod device pushing upwards is applied, the film and the electromagnetic push rod device generate extrusion force on the adaptive piston groove and the circular push head of the metal push rod, and the adaptive piston groove is completely matched with the circular push head of the metal push rod, so that multidirectional rotation can be performed. Under the condition that the film or the adaptive piston is not completely horizontal, the extrusion force can deflect the angle between the adaptive piston groove which is originally in the horizontal state and the circular push head of the metal push rod so as to adapt to the angle possibly generated by the contact surface. The design can eliminate assembly errors and machining errors, so that liquid is discharged more completely.
In one embodiment of the present invention, a lid is provided in the pouring port, and the lid is opened to pour the liquid into the membrane.
In one embodiment of the present invention, the fixing plate covers the thin film to enhance the fixing effect.
In one embodiment of the present invention, the fixing plate is provided with a flow channel space between the first space and the second space, wherein the flow channel space can form a flow channel gap.
In one embodiment of the present invention, the thin film back plate and the thin film are connected by bonding.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the valve body structure belongs to a normally closed valve body structure, the effect of closing the valve can be still realized after an external device is removed, and the valve body structure is strong in mobility and transportability; the valve body only uses the metal block and the spring, so that the valve body is simple in structure and easy to process; the selection of the spring can be changed according to the required pressure, and the control of different micro-flows and strong adaptability are realized. The invention relates to a self-adaptive magnetoelectric liquid driving structure; the size of the liquid storage volume can be changed by changing the expansion effect of the diameter film of the liquid storage bin, the change of the diameter of the liquid storage bin is realized by changing the reserved flow channel gap during bonding, and the liquid storage volume has the advantages of strong flexibility, strong driving performance, easy realization and low cost; the self-adaptive piston can make up errors in the assembly and production processes, reduce the generation of liquid dead volume, enhance the liquid transfer capacity and has quick response. The invention utilizes the spring-electromagnetism to seal and control the microfluid, has good driving effect, sensitive response, strong portability and good flow blocking effect.
Drawings
FIG. 1: the overall structure of the microfluidic regulating device in embodiment 1 of the present invention is schematically illustrated.
FIG. 2: the detailed schematic diagram of the valve body structure in the microfluidic regulating device in embodiment 1 of the invention.
FIG. 3: the schematic diagram of the electromagnetic push rod device-metal push rod circular push head in the microfluidic regulating device in embodiment 1 of the invention;
FIG. 4: the structure schematic diagram of the self-adaptive piston groove in the microfluidic regulating device in the embodiment 1 of the invention;
FIG. 5: the invention provides a schematic structure diagram of an adaptive piston in a microfluidic regulating device in embodiment 1.
Reference numerals:
1: film backboard
2: the first space
3: the first liquid storage bin
4: cover for portable electronic device
5: film(s)
6: flow passage gap
7: fixing plate
8: valve body placing space
9: spring
10: metal block
11: self-adaptive piston groove
12: self-adaptive piston
13: metal push rod round pushing head
14: metal push rod
15: push rod device shell
16: electromagnetic coil of push rod device
17: push rod device coil framework
18: electromagnet shell
19: electromagnet metal stick
20: electromagnet coil framework
21: electromagnet coil
22: a second space.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
Referring to fig. 1 to 5, the present embodiment provides a microfluidic regulating device, which includes a microfluidic chip, an adaptive liquid driving structure, and a spring valve structure.
The micro-fluidic chip is composed of a film back plate 1, a film 5 and a fixing plate 7, the film back plate 1, the film 5 and the fixing plate 7 are arranged in parallel, the film 5 is clamped between the film back plate 1 and the fixing plate 7, a first space 2, a valve body placing space 8 and a second space 22 which penetrate through the upper side and the lower side of the fixing plate 7 are arranged on the fixing plate 7, the valve body placing space 8 is positioned between the first space 2 and the second space 22, the film 5 is not pressed by the fixing plate 7 at the first space 2 and the second space 22, the film 5 is allowed to deform to form a first liquid storage bin 3 and a second liquid storage bin respectively, a liquid injection port is arranged on the film back plate 1 and positioned above the first space 2 and used for injecting liquid into the first liquid storage bin 3, a flow channel gap 6 is formed between the film 5 and the film back plate 1, the flow channel gap 6 extends from the first liquid storage bin 3 to the second liquid storage bin, the spring valve body structure is arranged in the valve body placing space 8 and used for controlling the opening or closing of the flow channel gap 6, the self-adaptive liquid driving structure is arranged at the first space 2 and used for providing extrusion force for the first liquid storage bin 3, and when the spring valve body structure is opened, liquid in the first liquid storage bin 3 is pushed to the flow channel gap 6 and enters the second liquid storage bin through the flow channel gap 6.
In this embodiment, the spring valve body structure is composed of a valve body device and an electromagnet, the valve body structure is a normally closed valve body structure, the valve body device is composed of a metal block 10 and a spring 9, the metal block 10 and the spring 9 are embedded into the valve body placing space 8 of the fixing plate 7 from the upper side, the outer diameter of the spring 9 is larger than the lower end outlet of the valve body placing space 8, a mechanical limitation is formed, a force towards the film 5 is generated, the metal block 10 is forced to be tightly pressed on the flow channel gap 6, and the flow channel gap 6 is closed; when the electromagnet is electrified, attraction force is generated, the metal block 10 is overcome by spring force, and the runner gap 6 is opened.
In this embodiment, the metal block 10 is composed of two cylinders with different diameters, the diameter of the cylinder with a large diameter is larger than the diameter of the inner ring of the spring 9, the diameter of the cylinder with a small diameter is smaller than or equal to the diameter of the inner ring of the spring 9, the cylinder with a small diameter fits the spring 9, and the cylinder with a small diameter is placed into the valve body placing space 8 from the upper end of the valve body placing space 8.
In this embodiment, the size of the spring 9 can be changed according to the required pressure, so as to obtain a larger or smaller valve pressure, and achieve the purpose of controlling valves with different flow rates.
In this embodiment, the electromagnet includes electromagnet housing 18, electromagnet metal rod 19, electromagnet coil skeleton 20 and electromagnet solenoid 21, electromagnet metal rod 19 is located electromagnet housing 18's middle part, electromagnet coil skeleton 20 is located electromagnet metal rod 19 outside, electromagnet solenoid 21 twines on electromagnet coil skeleton 20, electromagnet solenoid 21 and external power source intercommunication, electromagnet metal rod 19 is located metal block 10 below, when electromagnet solenoid 21 passes through the electric current, promptly produces magnetic field, and magnetic field is to electromagnet metal rod 19 effect, and electromagnet metal rod 19 produces the appeal, and metal block 10 receives the appeal influence, overcomes the spring force, and the downstream, and runner clearance 6 is opened, and the valve is opened promptly, and liquid can circulate in runner clearance 6.
In this embodiment, the electromagnet housing 18 is fixed to the fixed plate 7.
In this embodiment, the adaptive liquid driving structure is composed of an adaptive piston 12 and an electromagnetic push rod device, after the electromagnetic push rod device is powered on, the electromagnetic push rod device pushes the adaptive piston 12 to move, and the swelled first liquid storage bin 3 is subjected to the extrusion force of the adaptive piston 12. When the spring valve body structure is opened, the liquid in the first liquid storage bin 3 is pushed to the flow passage gap 6 and enters the second liquid storage bin through the flow passage gap 6. When the electromagnetic push rod device acts on the self-adaptive piston 12, after the self-adaptive piston 12 is acted by force, the angle of the self-adaptive piston 12 can be adjusted in a self-adaptive mode according to the angle between the surface of the film 5 and the horizontal plane.
In this embodiment, the electromagnetic push rod device includes a metal push rod 14, a push rod device housing 15, a push rod device electromagnetic coil 16, and a push rod device coil skeleton 17, the metal push rod 14 is located in the middle of the push rod device housing 15, the push rod device coil skeleton 17 is located outside the metal push rod 14, the push rod device electromagnetic coil 16 is wound on the push rod device coil skeleton 17, the lower portion of the metal push rod 14 is constrained by a spring 8, the push rod device electromagnetic coil 16 is communicated with an external power supply, the electromagnetic metal rod 19 is located below the adaptive piston 12, when the push rod device electromagnetic coil 16 passes through current, a magnetic field is generated, the magnetic field acts on the metal push rod 14, the metal push rod 14 moves upward against the spring force, the adaptive piston 12 is pushed to extrude the first liquid storage tank 3, when the spring valve body structure is opened, the liquid in the first liquid storage tank 3 is pushed to the flow passage gap 6, and enters the second liquid storage bin through the flow passage gap 6 to realize the control of the liquid.
In this embodiment, the size of the adaptive piston 12 is adapted to the size of the first space 2, and the electromagnetic push rod device pushes the adaptive piston 12 to drive the liquid. The pusher housing 15 is fixed to the fixed plate 7.
In this embodiment, the adaptive piston 12 has an adaptive piston recess 11, a circular metal push rod pusher 13 is formed above the metal push rod 14, the circular metal push rod pusher 13 is located in the adaptive piston recess 11, the adaptive piston recess 11 is completely engaged with the circular metal push rod pusher 13, and the adaptive piston recess 11 and the circular metal push rod pusher 13 form an adaptive function. When the force of the electromagnetic push rod device pushing upwards is applied, the film 5 and the electromagnetic push rod device generate extrusion force on the adaptive piston groove 11 and the metal push rod circular push head 13, and the adaptive piston groove 11 and the metal push rod circular push head 13 are completely matched and can rotate in multiple directions. In the state that the film 5 or the adaptive piston 12 is not completely horizontal, the extrusion force can deflect the angle between the adaptive piston groove 11 and the metal push rod circular push head 13 which are originally in the horizontal state so as to adapt to the angle possibly generated by the contact surface. The design can eliminate assembly errors and machining errors, so that liquid is discharged more completely.
In this embodiment, a lid 4 is provided in the pouring port, and the lid 4 is opened to pour the liquid into the membrane 5.
In this embodiment, the fixing plate 7 covers the film 5 to enhance the fixing effect.
In this embodiment, the fixing plate 7 is provided with a flow channel space between the first space 2 and the second space 22, which can form the flow channel gap 6.
In this embodiment, the film back plate 1 and the film 5 are connected by bonding.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A microfluid regulation device is characterized by comprising a microfluid chip, a self-adaptive liquid driving structure and a spring valve body structure,
the micro-fluidic chip is composed of a thin film back plate (1), a thin film (5) and a fixing plate (7), the thin film back plate (1), the thin film (5) and the fixing plate (7) are arranged in parallel, the thin film (5) is clamped between the thin film back plate (1) and the fixing plate (7), a first space (2) penetrating through the upper side and the lower side of the fixing plate (7), a valve body placing space (8) and a second space (22) are arranged on the fixing plate (7), the valve body placing space (8) is located between the first space (2) and the second space (22), the first space (2) and the second space (22) are located, the thin film (5) is not covered by the fixing plate (7), the thin film (5) is allowed to deform to form a first liquid storage bin (3) and a second liquid storage bin respectively, a liquid injection port is arranged on the thin film back plate (1), and the liquid injection port is located above the first space (2), is used for injecting liquid into the first liquid storage bin (3), a flow passage gap (6) is formed between the film (5) and the film back plate (1), the flow passage gap (6) extends from the first liquid storage bin (3) to the second liquid storage bin,
the spring valve body structure is arranged in the valve body placing space (8) and is used for controlling the opening or closing of the flow passage gap (6),
the self-adaptive liquid driving structure is arranged at the first space (2) and used for providing extrusion force for the first liquid storage bin (3), and when the spring valve body structure is opened, liquid in the first liquid storage bin (3) is pushed to the flow channel gap (6) and enters the second liquid storage bin through the flow channel gap (6).
2. A microfluidic regulating device according to claim 1, wherein the spring valve body structure is composed of a valve body device and an electromagnet, the valve body structure is a normally closed valve body structure, the valve body device is composed of a metal block (10) and a spring (9), the metal block (10) and the spring (9) are embedded into the valve body placing space (8) of the fixing plate (7), the outer diameter of the spring (9) is larger than the lower end outlet of the valve body placing space (8), a mechanical restriction is formed, a force towards the membrane (5) is generated, the metal block (10) is forced to be tightly pressed on the flow channel gap (6), and the flow channel gap (6) is closed; when the electromagnet is electrified, attraction force is generated, the spring force is overcome, the metal block (10) is attracted downwards, and the runner gap (6) is opened.
3. A microfluidic regulating device according to claim 2, wherein the metal block (10) is formed by two cylinders with different diameters, the diameter of the cylinder with large diameter is larger than the diameter of the inner ring of the spring (9), the diameter of the cylinder with small diameter is smaller than or equal to the diameter of the inner ring of the spring (9), the cylinder with small diameter fits the spring (9), and the cylinder with small diameter is placed into the valve body placing space (8) from the upper end of the valve body placing space (8).
4. The microfluidic regulating device according to claim 2, wherein the electromagnet comprises an electromagnet housing (18), an electromagnet metal rod (19), an electromagnet coil framework (20) and an electromagnet electromagnetic coil (21), the electromagnet metal rod (19) is located in the middle of the electromagnet housing (18), the electromagnet coil framework (20) is located outside the electromagnet metal rod (19), the electromagnet electromagnetic coil (21) is wound on the electromagnet coil framework (20), the electromagnet electromagnetic coil (21) is communicated with an external power supply, the electromagnet metal rod (19) is located below the metal block (10), when the electromagnet electromagnetic coil (21) passes through current, a magnetic field is generated, the magnetic field acts on the electromagnet metal rod (19), the electromagnet metal rod (19) generates attraction force, and the metal block (10) is influenced, overcoming the spring force, moves downwards, opens the flow channel gap (6), and the liquid can circulate in the flow channel gap (6).
5. The microfluid regulation device according to claim 1, wherein the adaptive liquid driving structure comprises an adaptive piston (12) and an electromagnetic push rod device, and after the electromagnetic push rod device is powered on, the electromagnetic push rod device pushes the adaptive piston (12) to move, and the bulged first reservoir (3) is subjected to the extrusion force of the adaptive piston (12).
6. A microfluidic regulating device according to claim 5, wherein when the electromagnetic push rod device acts on the adaptive piston (12), the adaptive piston (12) is acted on by force, and the angle of the adaptive piston (12) is adaptively adjusted according to the angle between the surface of the membrane (5) and the horizontal plane.
7. The microfluid control device according to claim 5, wherein the electromagnetic push rod device comprises a metal push rod (14), a push rod device housing (15), a push rod device electromagnetic coil (16), and a push rod device coil skeleton (17), wherein the metal push rod (14) is located in the middle of the push rod device housing (15), the push rod device coil skeleton (17) is located outside the metal push rod (14), the push rod device electromagnetic coil (16) is wound on the push rod device coil skeleton (17), the lower part of the metal push rod (14) is restrained by a spring (8), the push rod device electromagnetic coil (16) is communicated with an external power supply, the electromagnet metal rod (19) is located below the adaptive piston (12), when the push rod device electromagnetic coil (16) passes through current, a magnetic field is generated, and acts on the metal push rod (14), the metal push rod (14) overcomes the spring force to move upwards, and pushes the self-adaptive piston (12) to extrude the first liquid storage bin (3).
8. The microfluid regulation device according to claim 7, wherein an adaptive piston groove (11) is formed on the adaptive piston (12), a metal push rod circular push head (13) is formed above the metal push rod (14), the metal push rod circular push head (13) is located in the adaptive piston groove (11), the adaptive piston groove (11) is completely matched with the metal push rod circular push head (13), and the adaptive piston groove (11) and the metal push rod circular push head (13) form an adaptive function.
9. A microfluidic regulating device according to claim 1, wherein a lid (4) is arranged in the pouring opening, said lid (4) being adapted to pour liquid into the membrane (5) when opened.
10. A microfluidic regulating device according to claim 1, characterized in that the fixing plate (7) leaves a flow channel space between the first space (2) and the second space (22) in which the flow channel gap (6) can be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111490828.6A CN114263784A (en) | 2021-12-08 | 2021-12-08 | Microfluid regulation and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111490828.6A CN114263784A (en) | 2021-12-08 | 2021-12-08 | Microfluid regulation and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114263784A true CN114263784A (en) | 2022-04-01 |
Family
ID=80826524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111490828.6A Pending CN114263784A (en) | 2021-12-08 | 2021-12-08 | Microfluid regulation and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114263784A (en) |
-
2021
- 2021-12-08 CN CN202111490828.6A patent/CN114263784A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7478792B2 (en) | Microvalve having magnetic wax plug and flux control method using magnetic wax | |
| US7481337B2 (en) | Apparatus for fluid storage and delivery at a substantially constant pressure | |
| CN103335154A (en) | Electromagnetic micro valve integrated on micro-fluidic chip | |
| CN205663974U (en) | Temperature control valve core subassembly, temperature -sensing valve, miniflow way control chip and control system | |
| CN106224322A (en) | A kind of two-way adjustable speed electricity hydrostatic actuator and method of work thereof | |
| CN114001178B (en) | Bottle cap integrated electromagnetic double valve with bistable structure | |
| US20120138833A1 (en) | Multi-Function Eccentrically Actuated Microvalves and Micropumps | |
| CN217328759U (en) | Microfluid regulation and control device | |
| CN114263784A (en) | Microfluid regulation and control device | |
| JP4417334B2 (en) | valve | |
| CN101839919B (en) | Apparatus for fluidic control | |
| KR20100030311A (en) | Micropump with a membrane driven by an electromagnet | |
| CN207648236U (en) | Axis manifold solenoid valve | |
| CN206846000U (en) | Automatic reverse check valve | |
| CN109759153A (en) | A kind of electrowetting valve and its control method for capillarity micro-fluidic chip | |
| CN109365011A (en) | A kind of gas control reversing arrangement and method based on fluid processing chip | |
| WO2018112786A1 (en) | Liquid flow control device and micro-flow control method for micro-flow control | |
| RU66462U1 (en) | SMALL ELECTROMAGNETIC VALVE FOR AUTOMATION SYSTEMS | |
| CN108825801B (en) | Liquid-passing electromagnetic valve | |
| CN204380702U (en) | A kind of drop formation device for micro-fluidic chip | |
| CN205278512U (en) | A little valve of high leakproofness for PCR reaction | |
| CN206093142U (en) | Pipeline is from fluid governing valve and final controlling element | |
| WO2020088222A1 (en) | Fluid control structure and micro-fluidic chip and chip operation method | |
| CN1300498C (en) | Slow-opening and fast-closing energy-saving non-return valve | |
| CN210266158U (en) | Vacuum baffle valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |