CN111946843A - Small-sized precise flow control valve with elastic gasket - Google Patents
Small-sized precise flow control valve with elastic gasket Download PDFInfo
- Publication number
- CN111946843A CN111946843A CN202010840121.2A CN202010840121A CN111946843A CN 111946843 A CN111946843 A CN 111946843A CN 202010840121 A CN202010840121 A CN 202010840121A CN 111946843 A CN111946843 A CN 111946843A
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- CN
- China
- Prior art keywords
- sheet
- elastic
- moving
- base
- elastic sheet
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- 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.)
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a small-sized precise flow control valve with an elastic gasket, which comprises an electromagnetic coil, a base, a ring seat, a movable sheet and an elastic sheet; the elastic sheet is positioned above the base, the ring seat and the moving sheet are positioned between the base and the elastic sheet, the moving sheet is positioned on the inner side of the ring seat, an elastic gasket is arranged between the moving sheet and the elastic sheet, and the elastic gasket is fixedly arranged on the upper surface of the moving sheet or the lower surface of the elastic sheet; the electromagnetic coil is positioned on the upper side of the elastic sheet, the electromagnetic coil generates upward suction to the moving sheet, and the elastic sheet generates downward elastic force to the moving sheet; the scheme optimizes the structure of valve air inlet control, and the elastic gasket is arranged between the moving plate and the elastic sheet, so that when the moving plate is adsorbed by the electromagnetic coil, the upper surface of the moving plate can not directly impact the lower surface of the elastic sheet, and noise is avoided; and after the elastic gasket is arranged, the movable sheet generates a small elastic force to the movable sheet before the movable sheet presses the elastic sheet, and the valve is favorably controlled under the working condition of small opening.
Description
Technical Field
The invention relates to a small-sized precise flow control valve with an elastic gasket.
Background
The electromagnetic valve is a main part for controlling the flow of fluid, generally attracts a magnetic core through an electromagnetic coil, and controls the flow through the opening of the magnetic core; the existing electromagnetic valve is not reasonable enough in structure, so that the air inlet structure is not stable enough, and the flow control precision is influenced.
The applicant applies for a micro flow valve control mechanism in the future, which comprises a basic electromagnetic coil, a base, a ring seat, a moving plate and a spring plate structure, but when the moving plate is adsorbed by the electromagnetic coil, the upper surface of the moving plate directly collides with the lower surface of the spring plate to generate noise, and particularly in a scene of frequent opening and closing of the valve, continuous noise can be generated to influence the texture of the valve.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a small precise flow control valve with an elastic gasket.
In order to achieve the purpose, the invention adopts the technical scheme that: a small-sized precise flow control valve with an elastic gasket comprises an electromagnetic coil, a base, a ring seat, a movable sheet and an elastic sheet; the elastic sheet is positioned above the base, the ring seat and the moving sheet are positioned between the base and the elastic sheet, the moving sheet is positioned on the inner side of the ring seat, an elastic gasket is arranged between the moving sheet and the elastic sheet, and the elastic gasket is fixedly arranged on the upper surface of the moving sheet or the lower surface of the elastic sheet; the electromagnetic coil is positioned on the upper side of the elastic sheet, the electromagnetic coil generates upward suction to the moving sheet, and the elastic sheet generates downward elastic force to the moving sheet.
Preferably, a sealing ring is arranged between the moving piece and the base, and the sealing ring is fixedly arranged on the upper surface of the base or the lower surface of the moving piece.
Preferably, a plurality of arc-shaped retaining walls are arranged on the outer circumference of the upper side of the base, the upper surfaces of the arc-shaped retaining walls are flush, the ring is seated on the arc-shaped retaining walls, and an air inlet opening structure is formed between the adjacent arc-shaped retaining walls.
Preferably, the outer circumference of the rotor plate is in clearance fit with the inner wall of the ring seat.
Preferably, when the electromagnetic coil generates upward suction force to the rotor, the distance between the rotor and the base is valve opening D, D = D1+ D2; d1 is the maximum rising displacement distance of the moving plate before the moving plate contacts the elastic sheet; d2 is the amount of deformation of the striking flake in the vertical direction after the striking flake contacts the striking flake.
Preferably, the height of the ring seat is H1, the thickness of the rotor is H2, and the thickness of the elastic washer is H3, H1= H2+ H3+ D1.
Preferably, the base is provided at the center thereof with a plurality of uniformly spaced flow passage holes.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the scheme optimizes the structure of valve air inlet control, and the elastic gasket is arranged between the moving plate and the elastic sheet, so that when the moving plate is adsorbed by the electromagnetic coil, the upper surface of the moving plate can not directly impact the lower surface of the elastic sheet, and noise is avoided; and after the elastic gasket is arranged, the movable sheet generates a small elastic force to the movable sheet before the movable sheet presses the elastic sheet, and the valve is favorably controlled under the working condition of small opening.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic view of a small-sized precision flow control valve with an elastic gasket according to the present invention;
FIG. 2 is a schematic top view of the base of the present invention;
FIG. 3 is a schematic view of a stress structure of the rotor according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1-3, the small-sized precise flow control valve with an elastic gasket according to the present invention comprises an electromagnetic coil, a base 1, a ring seat 2, a rotor 3 and a spring plate 4; the elastic sheet 4 is positioned above the base 1, the ring seat 2 and the moving sheet 3 are positioned between the base 1 and the elastic sheet 4, and the moving sheet 3 and the elastic sheet 4 are both in a circular sheet structure; the moving plate 3 is positioned on the inner side of the ring seat 2, and the outer circumference of the moving plate 3 is in clearance fit with the inner wall of the ring seat 2, so that the ring seat 2 can play a certain role in guiding the lifting of the moving plate 3; an elastic gasket 6 is arranged between the moving plate 3 and the elastic sheet 4, and the elastic gasket 6 is fixedly arranged on the upper surface of the moving plate 3 or the lower surface of the elastic sheet 4.
The center of the base 1 is provided with a plurality of evenly spaced flow passage holes 7 so as to improve the uniformity of medium distribution and the stability of flowing, the outer circumference of the upper side of the base 1 is provided with a plurality of arc-shaped retaining walls, the upper surfaces of the arc-shaped retaining walls are flush, the ring seat 2 falls on the arc-shaped retaining walls, and an air inlet opening structure is formed between the adjacent arc-shaped retaining walls; of course, the base 1 may not be designed with an arc-shaped baffle wall structure, and the air inlet opening structure is transferred to the lower end of the ring seat 2, but the air inlet opening structure must be lower than the lower surface of the rotor plate 3.
The electromagnetic coil is positioned at the upper side of the elastic sheet 4, and after the electromagnetic coil is electrified, the electromagnetic coil generates upward magnetic attraction force F to the moving sheet 31After the moving plate 3 moves upwards, the elastic pad 6 is pressed first, so that the elastic pad 6 generates downward elastic force F to the moving plate 34Then the spring plate 4 is pressed to make the spring plate 4 generate downward elastic force F to the moving plate 32When fluid passes between the rotor 3 and the base 1, a downward force F is generated on the rotor 3 due to the Bernoulli effect3，F1=F2+F3+F4(ii) a Changing the magnetic attraction force F by changing the current of the magnet coil1，F1Overcome F2、F3And F4To controlOpening degree of the brake pad 3; different flow rates can be generated by different opening degrees, and the effect of precisely controlling the micro flow rate is achieved.
When the electromagnetic coil generates upward magnetic attraction force on the moving plate 3, the distance between the moving plate 3 and the base 1 is the valve opening D, and D = D1+ D2; d1 is the maximum rising displacement distance of the moving plate 3 before the moving plate 3 contacts the spring plate 4; d2 is the amount of deformation of the moving plate 3 in the vertical direction after contacting the spring plate 4; typically, neither D1 nor D2 is greater than 200 microns.
The height of the ring seat 2 is H1, the thickness of the movable plate 3 is H2, the thickness of the elastic gasket 6 is H3, H1= H2+ H3+ D1, and the ring seat 2 can be designed according to the formula during machining.
The base 1 can also be provided with a sealing ring 5 matched with the moving plate 3, at this time, the height of the ring seat 2 needs to be added to calculate the thickness of the sealing ring 5, but because the sealing ring 5 is generally partially embedded in the base 1, the thickness of the sealing ring 5 refers to the height of the sealing ring 5 higher than the matching surface of the ring seat 2 and the base 1; the sealing ring 5 needs to have a structure avoiding the flow passage hole 7, the outer circumference of the sealing ring 5 needs to be located on the outer side of the outermost flow passage hole 7, when the electromagnetic coil is not electrified, the moving plate 3 falls on the sealing ring 5 to seal the flow passage on the base 1, and the sealing ring 5 can be made of Teflon, nitrile rubber, silica gel and other materials.
Of course, the seal ring 5 may be fixedly provided on the lower surface of the rotor 3, and it is not necessary to provide the seal ring 5 with a structure for avoiding the flow passage hole 7.
For the sake of illustration, the parts are slightly separated, and in practice, the lower side of the ring base 2 should abut against the base 1 and the spring plate 4 should be pressed against the upper side of the ring base 2 by the electromagnetic coil.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (7)
1. The utility model provides a take small-size accurate flow control valve of elastic gasket which characterized in that: comprises an electromagnetic coil, a base (1), a ring seat (2), a movable sheet (3) and an elastic sheet (4); the elastic sheet (4) is positioned above the base (1), the ring seat (2) and the moving sheet (3) are positioned between the base (1) and the elastic sheet (4), the moving sheet (3) is positioned on the inner side of the ring seat (2), an elastic gasket (6) is arranged between the moving sheet (3) and the elastic sheet (4), and the elastic gasket (6) is fixedly arranged on the upper surface of the moving sheet (3) or the lower surface of the elastic sheet (4); the electromagnetic coil is positioned on the upper side of the elastic sheet (4), the electromagnetic coil generates upward suction to the moving sheet (3), and the elastic sheet (4) generates downward elastic force to the moving sheet (3).
2. The miniature precision flow control valve with elastomeric gasket of claim 1, wherein: a sealing ring (5) is arranged between the moving plate (3) and the base (1), and the sealing ring (5) is fixedly arranged on the upper surface of the base (1) or the lower surface of the moving plate (3).
3. The miniature precision flow control valve with elastomeric gasket of claim 1, wherein: a plurality of arc-shaped retaining walls are arranged on the outer circumference of the upper side of the base (1), the upper surfaces of the arc-shaped retaining walls are flush, the ring seat (2) falls on the arc-shaped retaining walls, and an air inlet opening structure is formed between the adjacent arc-shaped retaining walls.
4. The miniature precision flow control valve with elastomeric gasket of claim 1, wherein: the outer circumference of the moving plate (3) is in clearance fit with the inner wall of the ring seat (2).
5. The miniature precision flow control valve with elastomeric gasket of claim 1, wherein: when the electromagnetic coil generates upward suction force on the moving piece (3), the distance between the moving piece (3) and the base (1) is the valve opening D, and D = D1+ D2; d1 is the maximum rising displacement distance of the moving plate (3) before the moving plate (3) contacts the elastic sheet (4); d2 is the deformation quantity of the elastic sheet (4) in the vertical direction after the movable sheet (3) contacts the elastic sheet (4).
6. The miniature precision flow control valve with elastomeric gasket of claim 5, wherein: the height of the ring seat (2) is H1, the thickness of the movable piece (3) is H2, the thickness of the elastic gasket (6) is H3, and H1= H2+ H3+ D1.
7. The miniature precision flow control valve with elastomeric gasket of claim 1, wherein: the center of the base (1) is provided with a plurality of flow passage holes (7) with uniform intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840121.2A CN111946843A (en) | 2020-08-20 | 2020-08-20 | Small-sized precise flow control valve with elastic gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840121.2A CN111946843A (en) | 2020-08-20 | 2020-08-20 | Small-sized precise flow control valve with elastic gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946843A true CN111946843A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840121.2A Pending CN111946843A (en) | 2020-08-20 | 2020-08-20 | Small-sized precise flow control valve with elastic gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111946843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413227A (en) * | 2020-11-23 | 2021-02-26 | 苏州仁甬得物联科技有限公司 | High deformation shell fragment with crescent moon groove |
-
2020
- 2020-08-20 CN CN202010840121.2A patent/CN111946843A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413227A (en) * | 2020-11-23 | 2021-02-26 | 苏州仁甬得物联科技有限公司 | High deformation shell fragment with crescent moon groove |
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