CN212564646U - Control mechanism for micro flow valve - Google Patents
Control mechanism for micro flow valve Download PDFInfo
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- CN212564646U CN212564646U CN202021079902.6U CN202021079902U CN212564646U CN 212564646 U CN212564646 U CN 212564646U CN 202021079902 U CN202021079902 U CN 202021079902U CN 212564646 U CN212564646 U CN 212564646U
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Abstract
The utility model relates to a control mechanism of a micro flow valve, which comprises an electromagnetic coil, a base, a ring seat, a movable sheet and a spring sheet; the elastic sheet is positioned above the base, the ring seat and the movable sheet are positioned between the base and the elastic sheet, the movable sheet is positioned on the inner side of the ring seat, and the base is provided with a sealing ring matched with the movable sheet; the electromagnetic coil is positioned on the upper side of the elastic sheet; the scheme optimizes the structure of valve air inlet control, the ring seat plays a certain guiding role in lifting of the moving plate, the moving plate is prevented from deflecting in the air inlet process, the outer ring at the lower side of the moving plate can uniformly inlet air, and the working stability of the electromagnetic valve is ensured; the electromagnetic coil generates upward suction to the moving piece, the elastic piece generates downward elastic force to the moving piece, the height of the moving piece can be finely adjusted through the change of the current of the coil, and the opening degree of the valve is further changed; the sealing ring on the base can ensure the sealing performance of the valve after the coil is powered off.
Description
Technical Field
The utility model relates to a small flow valve door control mechanism.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a small flow valve control mechanism in order to overcome prior art's shortcoming.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a micro flow valve control mechanism comprises an electromagnetic coil, a base, a ring seat, a moving plate 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, and the base is provided with a sealing ring matched with the moving 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 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 seal ring 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 plate is H2, and the height of the sealing ring is H3, H1= H2+ H3+ D1.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the scheme optimizes the structure of valve air inlet control, the ring seat is arranged outside the moving plate, and plays a certain guiding role in the lifting of the moving plate, so that the moving plate cannot deflect in the air inlet process, the outer ring at the lower side of the moving plate can uniformly supply air, and the working stability of the electromagnetic valve is ensured; the electromagnetic coil generates upward suction to the moving piece, the elastic piece generates downward elastic force to the moving piece, the height of the moving piece can be finely adjusted through the change of the current of the coil, and the opening degree of the valve is further changed; and a sealing ring matched with the moving plate is arranged on the base, so that the sealing performance of the valve after the coil is powered off is ensured.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1 is a schematic view of a micro flow valve control mechanism according to the present invention;
fig. 2 is a schematic diagram of a stress structure of the rotor of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the control mechanism of a micro flow valve of the present invention comprises an electromagnetic coil, a base 1, a ring seat 2, a moving plate 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; the base 1 is provided with a sealing ring 5 matched with the moving plate 3, a runner hole on the base 1 is positioned at the inner ring of the sealing ring 5, when the electromagnetic coil is not electrified, the moving plate 3 falls on the sealing ring 5 to seal the runner hole on the base 1, and the sealing ring 5 can be made of Teflon, nitrile rubber, silica gel and other materials.
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; 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 sheet 4 is pressed, so that the elastic sheet 4 generates downward elastic force F on 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(ii) a Changing the magnetic attraction force F by changing the current of the magnet coil1，F1Overcome F2And F3To control the opening of the moving plate 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 sealing ring 5 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 15 microns.
The height of the ring seat 2 is H1, the thickness of the rotor 3 is H2, the height of the sealing ring 5 is H3, H1= H2+ H3+ D1, and the ring seat 2 can be designed according to the formula during machining; however, since the sealing ring 5 is usually partially embedded in the base 1, the height H3 of the sealing ring 5 in the formula refers to the height of the sealing ring 5 above the matching surface of the ring seat 2 and the base 1.
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 is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a little flow valve control mechanism 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), and the base (1) is provided with a sealing ring (5) matched with the moving sheet (3); 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 micro flow valve control mechanism 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.
3. The micro flow valve control mechanism 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).
4. The micro flow valve control mechanism of claim 1, wherein: when the electromagnetic coil generates upward suction force on the moving plate (3), the distance between the moving plate (3) and the sealing ring (5) 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).
5. The micro flow valve control mechanism of claim 4, wherein: the height of the ring seat (2) is H1, the thickness of the movable plate (3) is H2, the height of the sealing ring (5) is H3, and H1= H2+ H3+ D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079902.6U CN212564646U (en) | 2020-06-12 | 2020-06-12 | Control mechanism for micro flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079902.6U CN212564646U (en) | 2020-06-12 | 2020-06-12 | Control mechanism for micro flow valve |
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| Publication Number | Publication Date |
|---|---|
| CN212564646U true CN212564646U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021079902.6U Active CN212564646U (en) | 2020-06-12 | 2020-06-12 | Control mechanism for micro flow valve |
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| CN (1) | CN212564646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248780A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州仁甬得物联科技有限公司 | Micro-flow valve control mechanism |
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2020
- 2020-06-12 CN CN202021079902.6U patent/CN212564646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248780A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州仁甬得物联科技有限公司 | Micro-flow valve control mechanism |
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