CN111365521A - High-precision micro-fluidic valve - Google Patents
High-precision micro-fluidic valve Download PDFInfo
- Publication number
- CN111365521A CN111365521A CN202010207217.5A CN202010207217A CN111365521A CN 111365521 A CN111365521 A CN 111365521A CN 202010207217 A CN202010207217 A CN 202010207217A CN 111365521 A CN111365521 A CN 111365521A
- Authority
- CN
- China
- Prior art keywords
- wall
- fixed
- tube
- bolts
- bolt
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0005—Lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
- F16K99/0042—Electric operating means therefor
- F16K99/0046—Electric operating means therefor using magnets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a high-precision micro-fluidic valve which comprises an installation tube, wherein a conical tube is fixed on the outer wall of the top of the installation tube through a bolt, the inner walls of two sides of the installation tube are fixed with a same installation frame through bolts, the outer wall of the bottom of the installation frame is fixed with a control block through a bolt, the outer wall of the top of the control block is provided with a circular groove, the inner walls of two sides of the circular groove are connected with a same sliding plate in a sliding mode, the outer wall of the top of the sliding plate is fixed with a connecting rod through a bolt, the outer wall of the top of the connecting rod is fixed with a sealing plug with a conical structure through a bolt, the inner wall of the bottom of the circular groove is. The flow of the valve is controlled by electrifying the electromagnet of the sealing tube in the control block, and the extension amount of the connecting rod is further controlled by the current in the electromagnet, so that the opening and closing amount of the sealing plug is controlled.
Description
Technical Field
The invention relates to the technical field of microfluidics, in particular to a high-precision microfluidic valve.
Background
Microfluidics refers to the science and technology involved in systems that process or manipulate tiny fluids (nanoliters to attoliters in volume) using microchannels (tens to hundreds of microns in size), and is an emerging interdiscipline that involves chemical, fluid physics, microelectronics, new materials, biology, and biomedical engineering. Because of their miniaturization, integration, etc., microfluidic devices are commonly referred to as microfluidic chips, also known as lab-on-a-chip and micro total analysis systems. The early concept of microfluidics can be traced back to gas chromatographs fabricated on silicon wafers by photolithography in the 70 s of the 19 th century, and then developed into microfluidic capillary electrophoresis instruments, microreactors and the like. One of the important features of microfluidics is the unique fluid properties in microscale environments, such as laminar flow and droplets. With these unique fluidic phenomena, microfluidics can achieve a range of microfabrication and micromanipulation that are difficult to accomplish with conventional methods. Microfluidics is currently considered to have great development potential and broad application prospects in biomedical research.
The existing micro-fluidic valve has relatively single function, and the flow of the valve cannot be accurately controlled, so that the use limitation of the valve is large.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a high-precision micro-fluidic valve.
The invention provides a high-precision micro-fluidic valve which comprises an installation tube, wherein a conical tube is fixed on the outer wall of the top of the installation tube through a bolt, the inner walls of the two sides of the installation pipe are fixed with the same installation frame through bolts, the outer wall of the bottom of the installation frame is fixed with a control block through bolts, the outer wall of the top of the control block is provided with a circular groove, and the inner walls of the two sides of the circular groove are connected with the same sliding plate in a sliding way, the outer wall of the top of the sliding plate is fixed with a connecting rod through a bolt, and the outer wall of the top of the connecting rod is fixed with a sealing plug with a conical structure through a bolt, the inner wall of the bottom of the circular groove is provided with an installation groove, and the inner wall of the mounting groove is sleeved with a sealing tube, and the inner walls at the two sides of the sealing tube are connected with the same magnet in a sliding way, the outer wall of the top of the magnet is fixed with a support column through a bolt, the outer wall of the top of the sealing tube is provided with a sealing ring, and the support column penetrates through the sealing ring to be connected onto the sliding plate.
Preferably, the inner wall of the bottom of the sealing tube is fixed with an electromagnet through a bolt, and the outer wall of the top of the electromagnet is fixed with a spring through a bolt.
Preferably, the outer wall of the top of the spring is fixed on the magnet through a bolt, and the outer wall of one side of the installation pipe is fixed with a control box through a bolt.
Preferably, the inner walls of the two sides of the conical pipe are fixed with the same fixing frame through bolts, and the inner wall of the fixing frame is fixed with a flow sensor through bolts.
Preferably, the flow sensor is connected with a microprocessor through a signal line.
Preferably, the electromagnet is connected with a switch through a lead, and the switch is connected with the microprocessor through a lead.
In the invention, the control block is arranged in the installation pipe, the flow of the valve is controlled by switching on and off the electromagnet of the sealing pipe in the control block, and the elongation of the connecting rod is further controlled by the current in the electromagnet, so that the opening and closing amount of the sealing plug is controlled.
Drawings
Fig. 1 is a schematic front view of a high-precision micro-fluidic valve according to the present invention;
fig. 2 is a schematic sectional structure view of a high-precision micro-fluidic valve according to the present invention;
fig. 3 is a schematic structural diagram of a control block of a high-precision micro-fluidic valve according to the present invention.
In the figure: the device comprises a mounting pipe 1, a control box 2, a conical pipe 3, a mounting frame 4, a control block 5, a connecting rod 6, a sealing plug 7, a flow sensor 8, a sliding plate 9, a sealing pipe 10, a magnet 11, a spring 12, an electromagnet 13 and a sealing ring 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a high-precision micro-fluidic valve comprises an installation tube 1, wherein the outer wall of the top of the installation tube 1 is fixed with a conical tube 3 through a bolt, the inner walls of the two sides of the installation tube 1 are fixed with a same installation frame 4 through bolts, the outer wall of the bottom of the installation frame 4 is fixed with a control block 5 through a bolt, the outer wall of the top of the control block 5 is provided with a circular groove, and the inner walls of the two sides of the circular groove are connected with the same sliding plate 9 in a sliding way, the outer wall of the top of the sliding plate 9 is fixed with a connecting rod 6 through a bolt, and the outer wall of the top of the connecting rod 6 is fixed with a sealing plug 7 with a conical structure through a bolt, the inner wall of the bottom of the circular groove is provided with an installation groove, and the inner wall of mounting groove has cup jointed sealed tube 10, and the both sides inner wall sliding connection of sealed tube 10 has same magnet 11, and the top outer wall of magnet 11 has the support column through the bolt fastening, and sealed tube 10 top outer wall is provided with sealing washer 14, and the support column passes sealing washer 14 and connects on sliding plate 9.
According to the invention, an electromagnet 13 is fixed on the inner wall of the bottom of a sealing tube 10 through a bolt, a spring 12 is fixed on the outer wall of the top of the electromagnet 13 through a bolt, the outer wall of the top of the spring 12 is fixed on a magnet 11 through a bolt, a control box 2 is fixed on the outer wall of one side of an installation tube 1 through a bolt, the inner walls of two sides of a conical tube 3 are fixed with a same fixing frame through bolts, a flow sensor 8 is fixed on the inner wall of the fixing frame through a bolt, the flow sensor 8 is connected with a microprocessor through a signal line, the electromagnet 13 is connected with a switch through a.
The theory of operation, during the use, but produce the magnetism that 11 are the same of magnet when electro-magnet 13 circular telegrams, thereby control the opening and shutting of sealing plug 7 of the extension volume of spliced pole 6 according to the principle that like poles repel each other, control the degree of opening and shutting of sealing plug 7 through controlling the interior electric current size of electro-magnet 13, and then the rated flow of control valve, through the flow sensor 8 flow that detects the valve inner wall.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A high-precision micro-fluidic valve comprises an installation tube (1) and is characterized in that a conical tube (3) is fixed on the outer wall of the top of the installation tube (1) through bolts, the inner walls of two sides of the installation tube (1) are fixed with a same installation frame (4) through bolts, the outer wall of the bottom of the installation frame (4) is fixed with a control block (5) through bolts, the outer wall of the top of the control block (5) is provided with a circular groove, the inner walls of two sides of the circular groove are slidably connected with a same sliding plate (9), the outer wall of the top of the sliding plate (9) is fixed with a connecting rod (6) through bolts, the outer wall of the top of the connecting rod (6) is fixed with a conical-structured sealing plug (7) through bolts, the inner wall of the bottom of the circular groove is provided with an installation groove, the inner wall of, the outer wall of the top of the magnet (11) is fixed with a support column through a bolt, the outer wall of the top of the sealing tube (10) is provided with a sealing ring (14), and the support column penetrates through the sealing ring (14) to be connected onto the sliding plate (9).
2. A high precision micro-fluidic valve according to claim 1, wherein the bottom inner wall of the sealing tube (10) is fixed with an electromagnet (13) by a bolt, and the top outer wall of the electromagnet (13) is fixed with a spring (12) by a bolt.
3. A high precision micro-fluidic valve according to claim 2, wherein the top outer wall of the spring (12) is fixed on the magnet (11) by bolts, and the outer wall of one side of the mounting tube (1) is fixed with the control box (2) by bolts.
4. A high-precision micro-fluidic valve according to claim 3, wherein the inner walls of the two sides of the conical tube (3) are fixed with the same fixing frame through bolts, and the inner wall of the fixing frame is fixed with the flow sensor (8) through bolts.
5. A high precision micro fluidic valve according to claim 4, characterized in that the flow sensor (8) is connected with a microprocessor through a signal line.
6. A high accuracy microfluidic valve according to claim 5, wherein the electromagnet (13) is connected with a switch through a wire, and the switch is connected with the microprocessor through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010207217.5A CN111365521A (en) | 2020-03-23 | 2020-03-23 | High-precision micro-fluidic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010207217.5A CN111365521A (en) | 2020-03-23 | 2020-03-23 | High-precision micro-fluidic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111365521A true CN111365521A (en) | 2020-07-03 |
Family
ID=71207637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010207217.5A Pending CN111365521A (en) | 2020-03-23 | 2020-03-23 | High-precision micro-fluidic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111365521A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316572A (en) * | 2001-05-28 | 2001-10-10 | 姚宇 | Device for preventing illegal use of running water |
| CN2705779Y (en) * | 2004-05-10 | 2005-06-22 | 郭连华 | Magnetic control stop valve for metering while dripping for water meter |
| CN101813204A (en) * | 2009-02-23 | 2010-08-25 | 永嘉县行者科技有限公司 | Multifunctional maglev micro one-way valve |
| CN107044559A (en) * | 2017-04-17 | 2017-08-15 | 昆明理工大学 | One kind drives hydraulic control micro-valve supply reversing arrangement and its application method based on magnetic |
| CN206802316U (en) * | 2017-05-11 | 2017-12-26 | 山东沂星电动汽车有限公司 | A kind of power battery of electric vehicle case air conditioner cooling system air channel check valve |
| CN107701741A (en) * | 2017-11-27 | 2018-02-16 | 田齐芳 | A kind of slide-open Magnetic valves |
| CN207034275U (en) * | 2017-05-25 | 2018-02-23 | 江西新明机械有限公司 | A kind of miniature magnetic-controlled check valve |
| CN208123578U (en) * | 2018-03-23 | 2018-11-20 | 天津安尔诺斯科技有限公司 | A kind of centralized control valving |
| CN109695770A (en) * | 2019-01-25 | 2019-04-30 | 北京控制工程研究所 | A kind of simply highly reliable miniature self-locking valve of structure |
| CN110410575A (en) * | 2019-08-16 | 2019-11-05 | 郑州轻工业学院 | A kind of mobile electromagnetical driving micro-valve towards micro-fluidic chip |
-
2020
- 2020-03-23 CN CN202010207217.5A patent/CN111365521A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316572A (en) * | 2001-05-28 | 2001-10-10 | 姚宇 | Device for preventing illegal use of running water |
| CN2705779Y (en) * | 2004-05-10 | 2005-06-22 | 郭连华 | Magnetic control stop valve for metering while dripping for water meter |
| CN101813204A (en) * | 2009-02-23 | 2010-08-25 | 永嘉县行者科技有限公司 | Multifunctional maglev micro one-way valve |
| CN107044559A (en) * | 2017-04-17 | 2017-08-15 | 昆明理工大学 | One kind drives hydraulic control micro-valve supply reversing arrangement and its application method based on magnetic |
| CN206802316U (en) * | 2017-05-11 | 2017-12-26 | 山东沂星电动汽车有限公司 | A kind of power battery of electric vehicle case air conditioner cooling system air channel check valve |
| CN207034275U (en) * | 2017-05-25 | 2018-02-23 | 江西新明机械有限公司 | A kind of miniature magnetic-controlled check valve |
| CN107701741A (en) * | 2017-11-27 | 2018-02-16 | 田齐芳 | A kind of slide-open Magnetic valves |
| CN208123578U (en) * | 2018-03-23 | 2018-11-20 | 天津安尔诺斯科技有限公司 | A kind of centralized control valving |
| CN109695770A (en) * | 2019-01-25 | 2019-04-30 | 北京控制工程研究所 | A kind of simply highly reliable miniature self-locking valve of structure |
| CN110410575A (en) * | 2019-08-16 | 2019-11-05 | 郑州轻工业学院 | A kind of mobile electromagnetical driving micro-valve towards micro-fluidic chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sharp et al. | Liquid flows in microchannels | |
| US5726404A (en) | Valveless liquid microswitch | |
| Lammerink et al. | Modular concept for fluid handling systems. A demonstrator micro analysis system | |
| Verpoorte et al. | Three-dimensional micro flow manifolds for miniaturized chemical analysis systems | |
| Jiang et al. | Micro-fluid flow in microchannel | |
| Selvaganapathy et al. | Bubble-free electrokinetic pumping | |
| US8585916B2 (en) | Micropores and methods of making and using thereof | |
| CN103335154B (en) | A kind of electromagnetic micro valve be integrated on micro-fluidic chip | |
| Guler et al. | A versatile plug microvalve for microfluidic applications | |
| Xia et al. | Converting steady laminar flow to oscillatory flow through a hydroelasticity approach at microscales | |
| Greenwood et al. | Sample manipulation in micro total analytical systems | |
| Homsy et al. | Magnetohydrodynamic pumping in nuclear magnetic resonance environments | |
| WO2013166856A1 (en) | Microvalve integrated in a microfluidic device and method of use | |
| WO2012034270A1 (en) | Microdevice strucrure of microchannel chip | |
| CN111365521A (en) | High-precision micro-fluidic valve | |
| CN104568288A (en) | Quick micro-channel pressure measuring device based on capillary | |
| Bendib et al. | Analytical study of microchannel and passive microvalve: application to micropump simulator | |
| Choi et al. | An active micro mixer using electrohydrodynamic (EHD) convection | |
| CN109806803A (en) | A kind of microfluid mixing device and its control method with electrowetting threshold gate | |
| Lacharme et al. | Pressure injection in continuous sample flow electrophoresis microchips | |
| CN109723890B (en) | Electromagnetic micro-fluidic valve | |
| CN109603934A (en) | One kind passing through capillary interior metal droplet position measure of the change inside microchannels pressure apparatus | |
| Chen et al. | Introduction to Microfluidics | |
| Li et al. | Versatile programmable eight-path-electrode power supply for automatic manipulating microfluids of a microfluidic chip | |
| CN218047976U (en) | Micro-fluidic control card shell |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200703 |