The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of improved electric magnet valve, it is ensured that diaphragm and valve portParallel contact, it is easy to compress, improve pressure-resistant and sealing；Influence of the dimensional accuracy of part to properties of product is smaller, dropLow cost of parts；It is favorably improved the service life of electromagnet.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of improved electric magnet valve, including valve body, bonnet, diaphragm and dynamic iron core, valve body and bonnet formation cavity, bonnetProvided with some openings for being connected with cavity, diaphragm is arranged in cavity, dynamic iron core can with respect to valve body, including
Rocking bar, it is spindle rotationally arranged on valve body, forms lever construction；
Push rod at least one, it is connected with rocking bar；
Swing rod, it rotatably on valve body, supports with push rod with dynamic iron core, makes the rotation branch for being only located at rocking bar respectivelyThe push rod of point side is moved along a straight line by dynamic iron core driving, so as to force rocking bar to rotate；
First elastic component, resets for rocking bar；
Diaphragm is arranged between opening and push rod, and it, which corresponds to, is provided with sealing at opening, sealing can be with push rodCorresponding opening is opened in motion closing.
As the further improved procedure of such scheme, swing rod is rotated by the bearing pin located at its one end, dynamic iron core and topBar is located at the same side of bearing pin, and dynamic iron core to the distance of bearing pin is shorter than push rod to the distance of bearing pin.
As the further improved procedure of such scheme, swing rod is contacted with push rod and dynamic iron core by cambered surface respectively.
As the further improved procedure of such scheme, at be open to be set up in parallel two；Push rod is itself and rocking bar at oneOne end connection, corresponding in opening any one place set；Sealing is at one.
As the further improved procedure of such scheme, at be open to be set up in parallel three；Push rod be two at, its respectively withThe two ends connection of rocking bar, corresponding to being set at wherein two in opening at three, sealing is at two.
As the further improved procedure of such scheme, the pivot point of rocking bar is disposed therein portion, positioned at pivot pointThe push rod on right side is supported by swing rod, and the first elastic component is socketed with the push rod on the left of fulcrum, and it can be with rocking bar towards left sideRotate and compressed.
As the further improved procedure of such scheme, the opening of both sides is located relatively at middle opening symmetrically, push rod pointThe opening of both sides is not corresponded to.
As the further improved procedure of such scheme, push rod periphery is provided with annular groove, and its top is provided with flange, and rocking bar leads toThe mode for crossing embedded annular groove is connected with push rod.
As the further improved procedure of such scheme, sealing is the groove for meeting push rod shape, the bottom wall tool of grooveThere is sealing surface.
As the further improved procedure of such scheme, the both sides of groove are provided with the semi-cylindrical hill for being beneficial to its floating.
The beneficial effects of the invention are as follows：
1st, it ensure that the parallel contact of diaphragm and valve port, it is easy to compress, improve pressure-resistant and sealing；
2nd, influence of the dimensional accuracy of part to properties of product is smaller, reduces cost of parts；
3rd, dynamic iron core can be avoided crooked phenomenon occur, its friction between coil is reduced, contribute to extension electricityThe service life of magnet.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and accompanying drawing clearChu, it is fully described by, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that in situation about not conflictingUnder, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that unless otherwise specified, be referred to as " fixing " when a certain feature, " connection " in another feature,It can directly fix, be connected in another feature, can also indirectly fix, be connected in another feature.In addition, thisThe description such as upper and lower, left and right used in invention is only that the mutual alignment of each part of the invention relative in accompanying drawing is closedFor system.
In addition, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the artThe implication that personnel are generally understood that is identical.Term used in the description is intended merely to describe specific embodiment herein, withoutIt is to limit the present invention.Term as used herein " and/or " include the arbitrary of one or more related Listed ItemsCombination.
Reference picture 1, shows and is connected with coil on one embodiment of the present of invention, including valve body 10, valve body 10, in coilCentre be provided with dynamic iron core 30, its in the state of energization can opposed coil movement, be used as the power source of magnetic valve；Dynamic iron core 30Lower section is provided with the second elastic component 31, the elastic force for providing the reset of dynamic iron core 30.
It is preferred that, the overall structure of magnetic valve is vertically arranged, i.e. the vertical movement of dynamic iron core 30.
Including bonnet 20, it is provided with some openings connected with cavity 101 with the formation cavity 101 of valve body 10, bonnet 2021, fluid can enter from some opening 21 and be flowed out from other opening 21, by the opening and closing to opening 21 come to fluidIt is controlled.
Including rocking bar 40, it is connected on valve body 10 by bearing pin, it is rotated around valve body, so as to form leverStructure, includes the push rod 50 of at least one, its one end and the clamping of rocking bar 40；Including swing rod 51, its is rotatable located at valve body 10On, supported respectively with dynamic iron core 30 with push rod 50, when dynamic iron core 30 is moved, push rod 50 drives generation straight line position by swing rod 51Move, so as to force rocking bar 40 to rotate, the driving force of dynamic iron core is indirectly transferred at push rod by the setting of swing rod 51, can be avoidedBecause the crooked phenomenon of dynamic iron core, reduces rubbing between dynamic iron core and coil caused by dynamic iron core 30 and push rod 50 be not conllinearWipe, help to extend the service life of electromagnet.
It is preferred that, swing rod 51 is rotated by the bearing pin located at its one end, and dynamic iron core 30 is located at the bearing pin with push rod 50The same side, and dynamic iron core 30 to the distance of bearing pin is shorter than push rod 50 to the distance of bearing pin, so when dynamic iron core 30 moves shorterApart from when, push rod just can produce larger displacement, so as to reduce the overall volume of magnetic valve.
Wherein, if there are multiple push rods, have and the push rod only positioned at pivot point side can be supported by swing rod 51.
Including the first elastic component 70, it can provide the power of the reset of rocking bar 40.It is preferred that, above-mentioned first, second elastic componentCan be spring, or other well known flexible member.
Also include diaphragm 60, it is arranged in cavity 101, and positioned between opening 21 and push rod 50, reference picture 1 withFig. 2, thereon corresponding at opening 21 be provided with the sealing 601 of at least one, sealing 601 can with push rod 50 motion open orThe corresponding opening of person's closure, because push rod 50, sealing 601 are on same straight line with opening 21, push rod 50 can makeThe concora crush of sealing 601 is avoided in opening 21, effectively to be revealed because of caused by unbalance stress.
It is preferred that, sealing 601 is groove, and the bottom wall of groove has horizontal sealing surface.
It is further preferred that the two ends of sealing 601 are provided with buffer structure 602, buffer structure 602 can make sealing 601It is easier to float, strengthen sealing property.
It is further preferred that buffer structure 602 is semicircular elastic bumps.
Reference picture 3, it is preferred that annular groove 501 is provided with the periphery of push rod 50, one end of rocking bar 40 is inserted in annular groove 501It is interior, form the gearing with push rod.
The top of push rod 50 is provided with the first flange 502, by engaging with groove, push rod 50 is connected as one with diaphragmBody；The bottom of annular groove 501 is provided with the second flange 503, for fixing elastic component 70.
Reference picture 4, swing rod is provided with some projections 510 with cambered surface, its can make swing rod respectively with push rod and dynamic iron core itBetween slip it is more smooth.
In the present embodiment, opening 21 is i.e. triple valve, specifically, respectively first opens at horizontal alignment is set threeThe opening 213 of the opening of mouth 211, second 212 and the 3rd, wherein the second opening 212 is public opening, accordingly, push rod 50 and sealingPortion 601 is that at two, it corresponds respectively to the first opening 211 and the 3rd opening 213 is set.Push rod 50 respectively with rocking bar 40 twoEnd connection, in the presence of lever construction so that have and the push rod 50 of only one end can contradict sealing 601, close phaseThe opening answered.
It is preferred that, pivot point is located at the centre position of rocking bar 40, makes the displacement of two ends push rod equal.
Second opening 212 is in the middle part of bonnet, and the first opening 211 is set to the left, and the 3rd opening 213 is symmetrically setOn right side, so as to the most rational overall volume for reducing magnetic valve.
It is further preferred that being supported with the push rod 50 that the right-hand member of rocking bar 40 is connected by swing rod 51, it is connected with the left end of rocking bar 40The first elastic component 70 is socketed with push rod 50, when rocking bar 40 occurs towards during the rotation in left side, the first elastic component 70 is compressed.
The workflow of the present embodiment triple valve is：During electromagnet no power, dynamic iron core 30 is in original state, secondPromote the push rod 50 abutted with it to rise in the presence of elastic component 31, corresponding sealing 601 is pressed on the 3rd opening 213On, while driving rocking bar 40 to be rotated towards left side, the push rod 50 being connected with the left end of rocking bar 40 declines, and compresses the first elastic component 70 and beatsThe first opening 211 is opened, so that fluid can be flowed at the first opening 211 and flowed out at the second opening 212.
After electromagnet is powered, dynamic iron core 30 is moved downward, while the second elastic component 31 of compression, the change of the first elastic component 70Shape amount is released, so that drive rocker 40 rotates towards right side, the push rod 50 on right side declines, and the push rod 50 in left side rises, so thatFirst opening 211 is closed, and the second opening 212 is opened, and fluid can be flowed at the 3rd opening 213 and flowed at the second opening 212Go out.
Wherein the first elastic component 70 is not limited to be set on the push rod of left side, and it, which can be arranged on, can arbitrarily provide rocking barReset the position of power.
As a deformation of the present embodiment, opening 21 is that at horizontal alignment is set two, accordingly, push rod 50 is onePlace, one end clamping with rocking bar 40 forms the structure of two-port valve.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementationExample, those skilled in the art can also make a variety of equivalent variations or replace on the premise of without prejudice to spirit of the inventionChange, these equivalent deformations or replacement are all contained in the application claim limited range.