CN111089194B - Modularized multifunctional electromagnetic valve for adjusting air-fuel ratio - Google Patents
Modularized multifunctional electromagnetic valve for adjusting air-fuel ratio Download PDFInfo
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- CN111089194B CN111089194B CN202010035717.5A CN202010035717A CN111089194B CN 111089194 B CN111089194 B CN 111089194B CN 202010035717 A CN202010035717 A CN 202010035717A CN 111089194 B CN111089194 B CN 111089194B
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- 239000000446 fuel Substances 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
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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
- F16K1/02—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 with screw-spindle
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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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
- 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
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Abstract
The invention discloses a modularized multifunctional electromagnetic valve for adjusting air-fuel ratio, which comprises a first adjusting structure, wherein one part of the first adjusting structure is arranged in a valve body, the other part of the first adjusting structure is arranged in a valve seat, the first adjusting structure is positioned between a filter screen and an outlet end, and the first adjusting structure comprises a first fixed iron core and a first movable iron core; the third adjusting structure is positioned below the valve seat and fixedly connected with the valve seat, and the third adjusting structure comprises a panel, a first screw rod, a second screw rod, a multi-link rod and a spiral push rod. The invention discloses a modularized multifunctional air-fuel ratio adjusting electromagnetic valve which can adjust the ratio of air to fuel gas (not only can be adjusted in a ratio of 1:1, but also can be adjusted in multiple ratios), optimize the efficiency of the fuel gas and enable the finally discharged gas to reach the discharge standard.
Description
Technical Field
The invention belongs to the technical field of electromagnetic valves, and particularly relates to a modularized multifunctional electromagnetic valve for adjusting air-fuel ratio.
Background
The utility model is a utility model with publication number CN208024917U and the subject name of multi-link rocker arm electromagnetic valve, the technical proposal discloses that the device comprises a static iron core, a coil, a movable iron core, an electromagnet shell, a lower spring, a diaphragm, a valve cover, a connecting rod component and a switching block, wherein the valve cover is arranged at the upper end of the connecting rod component, the diaphragm is arranged between the connecting rod component and the valve cover, the top of the connecting rod component is rotationally connected with the diaphragm, the bottom of the connecting rod component is fixedly connected with the switching block, the bottom of the switching block is fixedly arranged at the upper end of the movable iron core, the bottom of the movable iron core is arranged in the coil, the static iron core is fixedly arranged in the coil, the lower spring is installed on the switching block, the switching block is upwards ejected out by the lower spring, a limiting flange is arranged at the top of the switching block, the top of the lower spring is in contact with the lower end face of the limiting flange, an electromagnet shell is installed at the top of the coil, and an auxiliary suction face is formed between the top of the electromagnet shell and the movable iron core. "
Taking the above utility model patent as an example, although it discloses to apply the multi-link structure to the solenoid valve, its technical problem that will solve is: the multi-connecting-rod type rocker arm electromagnetic valve has the advantages that the shaking of the diaphragm is realized through the combination of the three connecting rods, only one section of the diaphragm is controlled, the other end is released, one control factor is reduced, the multi-connecting rods are in hard connection, the deformation time is not needed, the response time of the shaking of the diaphragm can be prolonged, the area of an auxiliary suction surface is increased, and the electromagnetic force is increased; however, the multi-link structure is not used for adjusting the proportion of air and fuel gas, and the existing electromagnetic valve lacks the function of adjusting the proportion of air and fuel gas, so that the production purpose and the emission purpose cannot be achieved.
Disclosure of Invention
The invention mainly aims to provide a modularized multifunctional air-fuel ratio adjusting electromagnetic valve which can adjust the ratio of air to fuel gas (not only can be adjusted by 1:1, but also can be adjusted by multiple proportions), optimize the efficiency of the fuel gas and enable the finally discharged gas to reach the emission standard.
Another objective of the present invention is to provide a modular multifunctional electromagnetic valve for adjusting air-fuel ratio, which has the advantages of high accuracy, convenience, efficiency, and low cost.
In order to achieve the above object, the present invention provides a modularized multifunctional electromagnetic valve for adjusting air-fuel ratio, which is used for adjusting the ratio of air and fuel gas, and comprises a valve seat and a valve body, wherein the valve seat is fixedly connected with the valve body, the valve seat comprises an inlet end, a filter screen and an outlet end, and the electromagnetic valve comprises:
a first adjusting structure (which can be used for stopping pressure reduction), wherein one part of the first adjusting structure is arranged in the valve body, the other part of the first adjusting structure is arranged in the valve seat, the first adjusting structure is positioned between the filter screen and the outlet end, and the first adjusting structure comprises a first fixed iron core and a first movable iron core;
a second adjusting structure (which can be used for flow rate adjustment), wherein one part of the second adjusting structure is arranged in the valve body, the other part of the second adjusting structure is arranged in the valve seat, the second adjusting structure is positioned between the first adjusting structure and the outlet end, the second adjusting structure comprises a top cover, a second adjusting screw, a second fixed iron core and a second movable iron core, the top cover covers the second adjusting screw, and the second fixed iron core and the second movable iron core are sequentially arranged below the second adjusting screw;
the gas-liquid separator comprises a third adjusting structure (used for adjusting the ratio of air and gas), the third adjusting structure is located below the valve seat and fixedly connected with the valve seat, the third adjusting structure comprises a panel, a first screw, a second screw, a plurality of connecting rods (the ratio is adjusted through the plurality of connecting rods) and a spiral push rod, the panel comprises a first dial (the ratio is adjusted) and a second dial (zero calibration (1: 1)), the second dial is in transmission connection with the second screw, the spiral push rod movably connected with the second screw is arranged on one side of the second screw, and a pressure film and a steel ball are sequentially arranged above the spiral push rod.
As a further preferable aspect of the above aspect, the multi-link includes:
the device comprises a first lever, a second lever and a third lever, wherein a first film locking sheet guide pin is arranged at one end of the first lever, and a first L-shaped bolt penetrates through the middle of the first lever;
the connecting rod and the second lever, one end of the connecting rod is movably connected with the first lever, one end of the connecting rod, which is far away from the first lever, is contacted with the second lever, one end of the second lever, which is far away from the connecting rod, is provided with a spiral push rod, and a second L-shaped bolt penetrates through the middle of the second lever;
the spiral push rod comprises a spiral wheel, a lower film cavity spring and a second film locking sheet guide pin, the lower film cavity spring surrounds part of the second film locking sheet guide pin, the lower film cavity spring is partially arranged in the spiral wheel, and the second film locking sheet guide pin penetrates through the spiral wheel;
a film locking sheet is arranged above the second film locking sheet guide pin, is positioned between the steel ball and the spiral push rod and is used for locking the pressure film;
and an upper diaphragm cavity spring and a steel ball spring are respectively arranged around and above the steel ball, and a sealing film is also arranged above the steel ball spring.
As a further preferable technical solution of the above technical solution, the first screw rod is located above the connecting rod, a sliding plate and a sliding block are arranged between the first screw rod and the connecting rod, the sliding plate is fixedly connected with the connecting rod and the sliding block is fixedly sleeved on the first screw rod, and when the first screw rod is rotated, the sliding plate and the sliding block move relatively, so as to adjust the distance and the force between the connecting rod, the first lever and the second lever;
the second screw rod is positioned above the second lever and is movably connected with the spiral push rod, and when the second screw rod is rotated, the spiral push rod is rotated to drive the second lever, so that the distance and the force between the second lever and the connecting rod are adjusted;
and a planetary gear and an eccentric shaft are respectively arranged between the two ends of the first screw and the second screw and the panel, and the planetary gear is fixedly connected with the eccentric shaft.
As a further preferable technical solution of the above technical solution, the first adjusting structure further includes a first spring, a first middle shaft, a valve core, a main valve spring, a first upper valve and a first lower valve, the first spring part surrounds one end of the first movable iron core, which is far away from the first fixed iron core, the valve core is arranged at one end of the first movable iron core, which is far away from the first fixed iron core, one end of the valve core, which is far away from the first movable iron core, surrounds the main valve spring and is fixed with a first middle shaft, one end part of the first middle shaft, which is far away from the valve core, is internally arranged in the third adjusting structure, a first upper valve is arranged on the periphery of the main valve spring and is connected with a first lower valve through a valve connecting sleeve, and the inlet end is used for air inlet, so that the opening sizes of the first upper valve and the first lower valve are adjusted, and the pressure is reduced.
As a further preferable technical solution of the above technical solution, a balance membrane and an air-fuel ratio spring are disposed near one end of the first middle shaft, which is disposed inside the third adjusting structure, a proportional cavity is disposed below the balance membrane, and a proportional cavity support and a cavity bottom plate are disposed in the proportional cavity.
As a further preferable technical solution of the above technical solution, the second adjusting structure further includes a second spring, a second middle shaft, a second upper valve and a second lower valve, the second spring partially surrounds one end of the second movable iron core away from the second fixed iron core, one end of the second movable iron core away from the second fixed iron core is fixed with the second middle shaft, one side of the second middle shaft close to the second movable iron core is provided with the second upper valve, one side of the second middle shaft away from the second movable iron core is provided with the second lower valve, and the second movable iron core, the second spring and the second middle shaft are moved by adjusting the second adjusting screw to adjust the sizes of the openings of the second upper valve and the second lower valve, so as to adjust the flow rate.
Drawings
FIG. 1 is an isometric view of a modular multi-function modulating air-to-fuel ratio solenoid valve of the present invention.
FIG. 2 is a front view of a modular multi-function air-to-fuel ratio regulating solenoid of the present invention.
Fig. 3 is a sectional view taken along the direction of fig. 2A-a.
FIG. 4 is a schematic diagram of a part of the structure of the modularized multifunctional air-fuel ratio adjusting solenoid valve of the invention.
The reference numerals include: 10. a valve seat; 11. an inlet end; 12. a filter screen; 13. an outlet end; 20. a valve body; 31. a first fixed iron core; 32. a first movable iron core; 33. a first spring; 34. a first bottom bracket; 35. a valve core; 36. a main valve spring; 37. a first upper valve; 38. a first lower valve; 39. a valve connecting sleeve; 41. a top cover; 42. a second adjusting screw; 43. a second stationary core; 44. a second movable iron core; 45. a second spring; 46. a second middle axis; 47. a second upper valve; 48. a second lower valve; 51. a panel; 511. a first dial; 512. a second dial; 52. a first screw; 521. a slide plate; 522. a slider; 523. a planetary gear; 524. an eccentric shaft; 53. a second screw; 54. a plurality of connecting rods; 541. a first lever; 542. a first membrane locking tab guide pin; 543. a first L-shaped bolt; 544. a connecting rod; 545. a second lever; 546. a second L-shaped bolt; 55. a screw push rod; 551. a helical wheel; 552. a lower diaphragm chamber spring; 553. a second membrane locking tab guide pin; 56. a pressure membrane; 57. steel balls; 571. a membrane locking tab; 572. an upper diaphragm chamber spring; 573. a steel ball spring; 58. a balancing film; 591. an air-fuel ratio spring; 592. a proportional chamber; 593. a proportional chamber support; 594. a chamber floor.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
Referring to fig. 1 of the drawings, fig. 1 is an isometric view of a modular multifunctional air-fuel ratio regulating solenoid valve of the present invention, fig. 2 is a front view of the modular multifunctional air-fuel ratio regulating solenoid valve of the present invention, fig. 3 is a sectional view taken along the direction of fig. 2A-a, and fig. 4 is a partial structural schematic view of the modular multifunctional air-fuel ratio regulating solenoid valve of the present invention.
In the preferred embodiment of the present invention, those skilled in the art should note that the top cover, iron core, etc. to which the present invention relates may be regarded as prior art.
PREFERRED EMBODIMENTS
The invention discloses a modularized multifunctional electromagnetic valve for adjusting air-fuel ratio, which is used for adjusting the ratio of air and fuel gas, and comprises a valve seat 10 and a valve body 20, wherein the valve seat 10 is fixedly connected with the valve body 20, the valve 10 comprises an inlet end 11, a filter screen 12 and an outlet end 13, and the modularized multifunctional electromagnetic valve comprises:
a first adjusting structure (not shown) (which can be used for stopping pressure reduction), one part of which is arranged in the valve body 20, the other part of which is arranged in the valve seat 10, the first adjusting structure is arranged between the filter screen 12 and the outlet end 13, and the first adjusting structure comprises a first fixed iron core 31 and a first movable iron core 32;
a second adjusting structure (not shown) (which can be used for flow rate adjustment), a part of which is embedded in the valve body 20, and another part of which is embedded in the valve seat 10, the second adjusting structure is located between the first adjusting structure and the outlet end 13, the second adjusting structure comprises a top cover 41, a second adjusting screw 42, a second plunger 43 and a second plunger 44, the top cover 41 covers the second adjusting screw 42, and the second plunger 43 and the second plunger 44 are sequentially arranged below the second adjusting screw 42;
a third adjusting structure (for adjusting the ratio of air and fuel gas) 50, the third adjusting structure 50 is located below the valve seat 10 and is fixedly connected with the valve seat 10, the third adjusting structure 50 includes a panel 51, a first screw 52, a second screw 53, a multi-link 54 (adjusting the ratio through the multi-link), and a screw push rod 55, the panel 51 includes a first scale 511 (a scale for adjusting the air-fuel ratio), the first scale 511 is provided with display scales, the display scales include respective air-fuel ratio values (e.g., 1:1, 1: 2, etc.)) and a second scale 512 (a compensation scale, when the ratio of air and fuel gas is 1:1, if there is an error, the second scale 512 is provided with a compensation scale, the compensation scale includes respective compensation values (e.g., 0, -1.5, +1.5, etc.)), the second dial 512 is in transmission connection with the second screw 53, a spiral push rod 55 movably connected with the second screw 53 is arranged on one side of the second screw 53, and a pressure membrane 56 and a steel ball 57 are sequentially arranged above the spiral push rod 55. (in operation, zero calibration (air-fuel ratio 1: 1) is performed first, and then multi-ratio adjustment is performed, so that the precision is higher)
Specifically, the multi-link 54 includes:
a first lever 541, one end of the first lever 541 is provided with a first film locking sheet guide pin 542 and a first L-shaped pin 543 penetrates through the middle of the first lever 541;
a connecting rod 544 and a second lever 545, wherein one end of the connecting rod 544 is movably connected with the first lever 541, one end of the connecting rod 544, which is far away from the first lever 541, is in contact with the second lever 545, one end of the second lever 545, which is far away from the connecting rod 544, is provided with a spiral push rod 55, and a second L-shaped bolt 546 penetrates through the middle of the second lever 545;
the screw push rod 55 comprises a screw wheel 551, a lower lumen spring 552 and a second membrane locking tab guide pin 553, the lower lumen spring 552 partially enclosing the second membrane locking tab guide pin 553 and the lower lumen spring 552 partially built into the screw wheel 551, the second membrane locking tab guide pin 553 penetrating the screw wheel 551;
a membrane locking sheet 571 is arranged above the second membrane locking sheet guide pin 553, the membrane locking sheet 571 is located between the steel ball 57 and the screw push rod 55, and the membrane locking sheet 571 is used for locking the pressure membrane 56; (when the second dial 512 is rotated to drive the second screw 53 and thus the screw rod 55, the screw rod 55 drives the membrane locking piece 571 through the second membrane locking piece guide pin 553, and adjusts the air-fuel ratio by adjusting the size of the opening of the air entering the proportional chamber) (when the air (air) enters the proportional chamber, the membrane locking piece 571 receives the air pressure to drive the lower membrane chamber spring 552 to make the lower membrane chamber spring 552 generate an upward force)
An upper diaphragm cavity spring 572 and a steel ball spring 573 are respectively arranged around and above the steel ball 57, and a sealing diaphragm 574 is arranged above the steel ball spring 573. (when gas (fuel gas) enters the proportioning chamber, the ball 57 is suspended by the gas pressure to compress the ball spring 573 to cause the ball spring 573 to generate a downward force) (by adjusting to achieve a balance between the downward force and the upward force)
More specifically, the first screw 52 is located above the connecting rod 544, a sliding plate 521 and a sliding block 522 are arranged between the first screw 52 and the connecting rod 544, the sliding plate 521 is fixedly connected with the connecting rod 544, and the sliding block 522 is fixedly sleeved on the first screw 52, when the first screw 52 is rotated, the sliding plate 521 and the sliding block 522 are relatively moved, so that the positions of lever fulcrums among the connecting rod 544, the first lever 541 and the second lever 545 are adjusted;
the second screw 53 is located above the second lever 545 and is movably connected to the spiral push rod 55, and when the second screw 53 is rotated, the spiral push rod 55 is rotated to drive the second lever 545, so as to adjust the position of a fulcrum between the second lever 545 and the connecting rod 544;
a planetary gear 523 and an eccentric shaft 524 are respectively arranged between the two ends of the first screw 52 and the second screw 53 and the panel 51, the planetary gear 523 is fixedly connected with the eccentric shaft 524 (a hexagon socket eccentric shaft), and the planetary gear 523 and the eccentric shaft 524 are used for adjusting a rotation difference (when the first dial 511 rotates by a smaller angle, the first screw 52 can rotate by a larger angle, so that a required proportion can be achieved only by several rotations of the first dial 511, thereby improving accuracy) (when the second dial 512 rotates by a smaller angle, the second screw 53 can rotate by a larger angle, so that a required error compensation can be achieved only by several rotations of the second dial 512, thereby improving accuracy) (the function is achieved by using a difference in the number of teeth between the panel and the number of teeth of the planetary gear).
Preferably, the first adjusting structure further comprises a first spring 33, a first middle shaft 34, a spool 35, a main valve spring 36, a first upper valve 37 and a first lower valve 38, the first spring 33 partially surrounds one end of the first plunger 32 away from the first plunger 31, the valve core 35 is arranged at one end of the first movable iron core 32 far away from the first fixed iron core 31, the end of the valve core 35 far away from the first movable iron core 32 surrounds the main valve spring 36 and is fixed with a first middle shaft 34, an end portion of the first central shaft 34 remote from the spool 35 is disposed in the third adjustment structure 50, a first upper valve 37 is provided at the outer circumference of the main valve spring 36 and the first upper valve 37 is connected to a first lower valve 38 by a valve connecting sleeve 39, the air is introduced through the inlet end 11 to adjust the opening sizes of the first upper valve 37 and the first lower valve 38, thereby performing decompression.
Further, a balance film 58 and an air-fuel ratio spring 591 are arranged near one end of the first middle shaft 34, which is arranged in the third adjusting structure 50, a proportional cavity 592 is arranged below the balance film 58, and a proportional cavity support 593 and a cavity bottom plate 594 are arranged in the proportional cavity 592.
Furthermore, the second adjusting structure further includes a second spring 45, a second middle shaft 46, a second upper valve 47, and a second lower valve 48, where the second spring 45 partially surrounds one end of the second movable iron core 44 away from the second fixed iron core 43, the second middle shaft 46 is fixed to one end of the second movable iron core 44 away from the second fixed iron core 43, the second upper valve 47 is disposed on one side of the second middle shaft 46 close to the second movable iron core 44, and the second lower valve 48 is disposed on one side of the second middle shaft 46 away from the second movable iron core 44, and the second movable iron core 44, the second spring 45, and the second middle shaft 46 are moved by adjusting the second adjusting screw 42 to adjust the sizes of the openings of the second upper valve 47 and the second lower valve 48, so as to adjust the flow rate.
It should be noted that the technical features of the top cover, the iron core, and the like related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be conventional in the art, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
Claims (2)
1. The utility model provides a multi-functional regulation air-fuel ratio solenoid valve of modularization for the proportion of air-conditioning and gas, including disk seat and valve body, the disk seat with valve body fixed connection, the disk seat includes entrance point, filter screen and exit end, its characterized in that includes:
the first adjusting structure is arranged between the filter screen and the outlet end, and comprises a first fixed iron core and a first movable iron core;
the first adjusting structure further comprises a first spring, a first middle shaft, a valve core, a main valve spring, a first upper valve and a first lower valve, wherein the first spring partially surrounds one end, far away from the first fixed iron core, of the first movable iron core, the valve core is arranged at one end, far away from the first fixed iron core, of the first movable iron core, the main valve spring is surrounded at one end, far away from the first movable iron core, of the valve core, the first middle shaft is fixed on the first middle shaft, a third adjusting structure is arranged in one end part, far away from the valve core, of the first middle shaft, a first upper valve is arranged on the periphery of the main valve spring and is connected with the first lower valve through a valve connecting sleeve, and air is introduced through the inlet end so as to adjust the sizes of openings of the first upper valve and the first lower valve and further reduce the pressure;
a second adjusting structure, wherein one part of the second adjusting structure is arranged in the valve body, the other part of the second adjusting structure is arranged in the valve seat, the second adjusting structure is positioned between the first adjusting structure and the outlet end, the second adjusting structure comprises a top cover, a second adjusting screw, a second fixed iron core and a second movable iron core, the top cover covers the second adjusting screw, and the second fixed iron core and the second movable iron core are sequentially arranged below the second adjusting screw;
the second adjusting structure further comprises a second spring, a second middle shaft, a second upper valve and a second lower valve, the second spring partially surrounds one end, away from the second fixed iron core, of the second movable iron core, the second middle shaft is fixed to one end, away from the second fixed iron core, of the second movable iron core, the second upper valve is arranged on one side, close to the second movable iron core, of the second middle shaft, the second lower valve is arranged on one side, away from the second movable iron core, of the second middle shaft, and the second movable iron core, the second spring and the second middle shaft are moved by adjusting the second adjusting screw, so that the sizes of openings of the second upper valve and the second lower valve are adjusted, and further flow adjustment is performed;
the third adjusting structure is positioned below the valve seat and fixedly connected with the valve seat, the third adjusting structure comprises a panel, a first screw, a second screw, a multi-connecting rod and a spiral push rod, the panel comprises a first dial and a second dial, the second dial is in transmission connection with the second screw, the spiral push rod movably connected with the second screw is arranged on one side of the second screw, and a pressure film and steel balls are sequentially arranged above the spiral push rod;
the multi-link includes:
the device comprises a first lever, a second lever and a third lever, wherein a first film locking sheet guide pin is arranged at one end of the first lever, and a first L-shaped bolt penetrates through the middle of the first lever;
the connecting rod and the second lever, one end of the connecting rod is movably connected with the first lever, one end of the connecting rod, which is far away from the first lever, is contacted with the second lever, one end of the second lever, which is far away from the connecting rod, is provided with a spiral push rod, and a second L-shaped bolt penetrates through the middle of the second lever;
the spiral push rod comprises a spiral wheel, a lower film cavity spring and a second film locking sheet guide pin, the lower film cavity spring surrounds part of the second film locking sheet guide pin, the lower film cavity spring is partially arranged in the spiral wheel, and the second film locking sheet guide pin penetrates through the spiral wheel;
a film locking sheet is arranged above the second film locking sheet guide pin, is positioned between the steel ball and the spiral push rod and is used for locking the pressure film;
an upper diaphragm cavity spring and a steel ball spring are respectively arranged around and above the steel ball, and a sealing film is also arranged above the steel ball spring;
the first screw rod is positioned above the connecting rod, a sliding plate and a sliding block are arranged between the first screw rod and the connecting rod, the sliding plate is fixedly connected with the connecting rod, the sliding block is fixedly sleeved on the first screw rod, and when the first screw rod is rotated, the sliding plate and the sliding block move relatively, so that the positions of lever fulcrums among the connecting rod, the first lever and the second lever are adjusted;
the second screw rod is positioned above the second lever and is movably connected with the spiral push rod, and when the second screw rod is rotated, the spiral push rod is rotated to drive the second lever, so that the position of a lever fulcrum between the second lever and the connecting rod is adjusted;
a planetary gear and an eccentric shaft are respectively arranged between the two ends of the first screw and the second screw and the panel, and the planetary gear is fixedly connected with the eccentric shaft; the first dial is a proportional dial and the second dial is a compensating dial.
2. The modular multifunctional air-fuel ratio adjusting solenoid valve as claimed in claim 1, wherein a balance membrane and an air-fuel ratio spring are disposed near one end of the first middle shaft, which is disposed inside the third adjusting structure, a ratio chamber is disposed below the balance membrane, and a ratio chamber support and a chamber bottom plate are disposed inside the ratio chamber.
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