CN209054146U - A kind of solenoid valve - Google Patents

Abstract

The utility model relates to a kind of solenoid valves, including solenoid valve body；It further include electromagnetic assembly, the electromagnetic assembly includes the dynamic iron core being placed in outside solenoid valve body and static iron core；The solenoid valve body forms multiple venting channels, and the venting channels include the first venting channels, the second venting channels and third venting channels, and multiple venting channels communicate to form access；Plug is set in the solenoid valve body, and buffer unit is equipped between the plug and electromagnetic assembly.Solenoid valve in the utility model, clever structure, by forming multiple venting channels in solenoid valve body, the probability that can effectively avoid solenoid valve body and electromagnetic assembly from generating heat, the failure rate of solenoid valve in use is reduced, the success rate for starting and closing is increased, guarantees the output that can reduce resource while solenoid valve service life, the use cost for reducing user, is conducive to the solenoid valve and promotes and apply in the market.

Description

A kind of solenoid valve

Technical field

The utility model relates to Solenoid Valve Technology field, specifically a kind of solenoid valve.

Background technique

Solenoid valve is the industrial equipment controlled using electromagnetic principle, and medium flow field is adjusted in industrial control system To, achieve the purpose that automatic control.Solenoid valve is made of electromagnetic coil (or electromagnet) and magnetic core, is comprising one or several holes Valve body, when coil (or electromagnet) be powered or power off when, the movement of magnetic core will lead to fluid by valve body be cut off or be connected, Achieve the purpose that change fluid flow direction, solenoid valve is made of electromagnetic component and valve body.

Solenoid valve is commonly provided with pilot head in use, and pilot head is a kind of execution machine to match with solenoid valve Structure, including sleeve, dynamic iron core, static iron core and electromagnetic coil, dynamic iron core and static iron core are set in sleeve, and electromagnetic coil is set to sleeve Outer wall supports between dynamic iron core and sleeve and is equipped with first back-moving spring, and sleeve bottom end is fixedly installed on pedestal, sleeve and pedestal it Between be formed with chamber, dynamic iron core is movably set in chamber, and pedestal is equipped with air inlet and gas port, be additionally provided on pedestal to The accommodating cavity of piston is placed, accommodating cavity is equipped with first row port, and pedestal is equipped with second be directly connected to first row port Exhaust outlet, pilot head push directly on piston motion at work, and piston motion to have air disengaging in accommodating cavity, due to existing Accommodating cavity on first row port be directly to be in communication with the outside by second exhaust port, will lead in cavity so empty Gas brings dust and other impurities into when passing in and out, and influences the service life of pilot head, and then influence the service life of solenoid valve, and traditional Pilot head manufacturing procedure is complicated, and the period is long, and required precision is high, and pilot head and dynamic iron core fit clearance are small, lead to subtitle substance It is easily stuck in gap, influences the use of solenoid valve, and magnetic force is small in use for existing solenoid valve, using effect is not It is good, it is unfavorable for solenoid valve and promotes and apply in the market.

Summary of the invention

The utility model is to provide a kind of solenoid valve, the electromagnetic valve structure to overcome above-mentioned defect in the prior art Ingenious, using effect is good, and can effectively ensure that the service life of solenoid valve, reduces the use cost that user uses solenoid valve, Be conducive to solenoid valve to promote and apply in the market.

In order to achieve the above-mentioned object of the invention, the utility model uses following technical scheme: a kind of solenoid valve, including solenoid valve Ontology；It further include electromagnetic assembly, the electromagnetic assembly includes the dynamic iron core and static iron core for being placed outside the solenoid valve body；It is described Solenoid valve body forms multiple venting channels, and the venting channels include that the first venting channels, the second venting channels and third are logical Gas channel, multiple venting channels communicate to form access；Plug is set in the solenoid valve body, between the plug and electromagnetic assembly Equipped with buffer unit.First venting channels are inlet channel, and the second venting channels are exhaust (deflation) channel, third venting channels For work done (work) channel.

As a kind of preferred embodiment of the utility model, metallic rod is equipped between the plug and buffer unit, it is described slow Flushing device is installed between the metallic rod and electromagnetic assembly.

As a kind of preferred embodiment of the utility model, the electromagnetic assembly is electromagnetic coil structure, the buffer unit Below the electromagnetic coil, under moment energized state, the dynamic iron core stretches out the electromagnetic coil, described dynamic under off-position Iron core is kept under stretching state, then reversed moment energized state, and the dynamic iron core is retracted in the electromagnetic coil and powered off；It is described Buffer unit is externally provided with buffer protection shell, and the buffer protection hull shape is at notch, under electromagnetic valve work closed state, the notch Access is formed with the second venting channels 12, third venting channels 13.

As a kind of preferred embodiment of the utility model, the plug is right against the first venting channels setting, described Return unit is equipped between solenoid valve body and plug.

As a kind of preferred embodiment of the utility model, the electromagnetic assembly is electromagnetic coil structure, the solenoid valve sheet Resetting apparatus is set in vivo, and the resetting apparatus includes resetting strut, balancing pole and resetting block, and the balancing pole is movable to be installed on The reset strut, the plug and resetting block are fixedly arranged on the balancing pole both ends.

As a kind of preferred embodiment of the utility model, it is equipped with and resets between the resetting block and solenoid valve body inner wall Part.

As a kind of preferred embodiment of the utility model, the electromagnetic assembly is electromagnetic coil structure, electromagnetic assembly side Equipped with tension spring；Described tension spring one end is connected to electromagnetic assembly, and the other end is connected to buffer unit by suction disc.

As a kind of preferred embodiment of the utility model, the metallic rod is steel wire.

A kind of solenoid valve, including solenoid valve body；Further include electromagnetic assembly, dynamic iron core is equipped in the electromagnetic assembly；Institute It states solenoid valve body and forms multiple venting channels, the venting channels include the first venting channels, the second venting channels and third Venting channels, multiple venting channels communicate to form access；Magnetic patch, the solenoid valve body peripheral hardware are equipped in the solenoid valve body There is another magnetic patch, two blocks of magnet are oppositely arranged.

A kind of solenoid valve, including solenoid valve body；Further include electromagnetic assembly, dynamic iron core is equipped in the electromagnetic assembly；Institute It states solenoid valve body and forms multiple venting channels, the venting channels include the first venting channels, the second venting channels and third Venting channels, multiple venting channels communicate to form access；Two pieces of magnetic patch are equipped in the solenoid valve body, two pieces of magnetic patch are logical The connection of overbalance bar, corresponding, the solenoid valve body is externally provided with two pieces of magnetic patch, and the magnetic patch all has the pole N and the pole S.

Compared with prior art, the utility model has the beneficial effects that the solenoid valve in the utility model, clever structure, By forming multiple venting channels in solenoid valve body, solenoid valve body and electromagnetic assembly can be effectively avoided to generate heat general Rate reduces the failure rate of solenoid valve in use, increases the success rate of starting and closing, guarantees solenoid valve service life While can reduce the output of resource, reduce the use cost of user, be conducive to the solenoid valve and promote and answer in the market With.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of solenoid valve in the utility model embodiment 1；

Fig. 2 is the structural schematic diagram of solenoid valve in the utility model embodiment 2；

Fig. 3 is the structural schematic diagram of solenoid valve in the utility model embodiment 3；

Fig. 4 is the structural schematic diagram of solenoid valve in the utility model embodiment 4；

Fig. 5 is the structural schematic diagram of solenoid valve in the utility model embodiment 5；

Fig. 6 is the structural schematic diagram of solenoid valve in the utility model embodiment 6；

Fig. 7 is the structural schematic diagram of solenoid valve in the utility model embodiment 7；

Fig. 8 is the structural schematic diagram of solenoid valve in the utility model embodiment 8；

Fig. 9 is the structural schematic diagram of solenoid valve in the utility model embodiment 9.

Appended drawing reference: 1, solenoid valve body；2, strut is resetted；3, balancing pole；4, plug；5, metallic rod；6, buffering dress It sets；7, electromagnetic assembly；8, return unit；9, resetting block；10, buffer protection shell；11, the first venting channels；12, the second ventilation is logical Road；13, third venting channels；14, notch；15, magnetic patch；16, tension spring；17, suction disc；18, positioning plate；20, dynamic iron core pushes and pulls Bar；21 static iron cores.

Specific embodiment

It elaborates with reference to the accompanying drawing to the utility model embodiment.

Embodiment 1: as shown in Figure 1, a kind of solenoid valve further includes setting including the internal solenoid valve body 1 for forming cavity Electromagnetic assembly 7 outside solenoid valve body 1, electromagnetic assembly 1 are equipped with dynamic iron core push-pull rod 20, and solenoid valve body 1 forms multiple logical Gas channel, above-mentioned venting channels include the first venting channels 11, the second venting channels 12 and third venting channels 13, the first ventilation Channel 11, the second venting channels 12 and third venting channels 13 communicate to form access, and the first venting channels 11 are inlet channel, the Two venting channels 12 are exhaust (deflation) channel, and third venting channels 13 are work done (work) channel.

Plug 4 is set in solenoid valve body 1, buffer unit 6 is equipped between plug 4 and electromagnetic assembly 7, in order to enable plug 4 It enough follows the promotion of the dynamic iron core in electromagnetic assembly 7 and moves, metallic rod 5 is provided between plug 4 and buffer unit 6, delay Flushing device 6 is mounted between metallic rod 5 and electromagnetic assembly 7, and setting is separated between metallic rod 5 and buffer unit 6, passes through buffering Device 6 from top to bottom pushes metallic rod 5, slows down dynamic iron core stroke greater than stroke of the plug 4 in solenoid valve body 1, makes iron Core stroke is covered, and can still be kept with magnetic.For the ease of controlling dynamic iron core, dynamic iron core is connected to dynamic iron core push-pull rod 20 On, when electromagnetic valve component 7 is after being powered in a flash, dynamic iron core push-pull rod 20 understands dramatic decrease, and then drives in solenoid valve body 1 4 dramatic decrease of plug, the setting of buffer unit 6 slows down the movement speed of electromagnetic valve component 7 Yu plug 4, and buffer unit 6 can be The simple buffer spring of structure, can be by buffering elastic for the ease of replacing to buffer spring since there are fatigue limits for spring Spring is removably mounted between 7 lower end of 5 upper end of metallic rod and electromagnetic valve component by spring base etc..

The main return unit 8 for rising and resetting positioning action, return unit 8 are also provided between 4 lower end of plug and solenoid valve body 1 It can be the simple reset spring of structure.

Plug 4 is made of rubber material, and rubber plug has good physical mechanical property, can guarantee that solenoid valve is closing Airtightness under closed state, sealing effect is good, and the size of rubber plug is obviously smaller than 1 inner wall of cavity, can effectively exclude outer Boundary's dust and other substances enter in solenoid valve body 1, additionally it is possible to save the making material of plug 4, reduce cost of manufacture, block up First 4 the service life that can also ensure that solenoid valve is made of rubber material, and the dynamic iron core in traditional solenoid valve body 1 is difficult to reality It is existing.Since the solenoid valve in the application is sometimes light current pressure electromagnetic valve, (light current solenoid valve in order to increase magnetism, protecting by dynamic iron core Demonstrate,prove and movable accomplish maximum in the case where internal surface of sleeve pipe), the use cost of user is reduced, and can reduce plug 4 and using In the process because frictional force, the probability that reduction plug 4 falls off guarantee plug 4 between 1 inner wall of dust impurity and solenoid valve body Using effect, and then guarantee the using effect of solenoid valve.

Electromagnetic assembly 7 in the present embodiment is electromagnetic coil structure, and buffer unit 6 can be the simple buffer spring position of structure In the lower section of electromagnetic coil, play the role of buffering in electromagnetic coil plug 4 in dynamic iron core and solenoid valve body 1.

For effective protection buffer unit 6, buffer protection shell 10 is provided with also outside buffer unit 6, close to solenoid valve sheet Notch 14 is formed on the buffer protection shell 10 of body 1, notch 14 is arc-shaped or circular hole setting, solenoid valve are pushed away in dynamic iron core push-pull rod 20 It does well down, plug 4 blocks the first venting channels 11,13 shape of above-mentioned notch 14 and the second venting channels 12 and third venting channels It at access, plays and excludes the gas not recycled after third venting channels 13 work, under 20 retracted mode of dynamic iron core push-pull rod Plug 4 blocks the second venting channels 12, the first venting channels through the effect rising on 11 fluid top of return unit 8 and the first venting channels 11 form access with third venting channels 13, play work and are used, and it is fixed to be provided with also in buffer protection shell 10 in the present embodiment Position plate 18, on buffer protection shell 10 formed positioning ladder, positioning plate 18 be mounted on positioning ladder at play positioning metal bar 5 with The not inclined effect of plug 4, can be effectively reduced the probability of 1 gas leakage of solenoid valve body.

Under electromagnetism valve closing state, electromagnetic assembly 7 is powered, and plug 4 lifts upwards under the drive of metallic rod 5, and first is logical The gas in gas channel 11 enters from the third venting channels 13 of 1 side of solenoid valve body, works, and closes the first venting channels When 11, plug 4 blocks air inlet, gas from the position that the position that the second venting channels 12 are blocked advances to the first venting channels 11 It is discharged again through notch 14 from third venting channels 13 through the second venting channels 12, (but also have from dispersing away between positioning plate 18 Probability) so as to the impurity taken out of in solenoid valve body 1, guarantee the using effect of solenoid valve, further avoids the impurity such as dust and exist Deposition, influences the using effect of solenoid valve in solenoid valve body 1.

Solenoid valve in the present embodiment is that magnetic keeps structure, and dynamic iron core is movably arranged in electromagnetic coil, used Resistance is low (10 ohms) in journey, and power is high, and power height increases the success rate of starting, and conduction time is short, at solenoid valve Under energized state, dynamic iron core stretches out electromagnetic coil, powers off this moment, and dynamic iron core keeps stretching state, and the work on solenoid valve is logical Road is opened, and solenoid valve is opened, then when reversed energization, dynamic iron core is retracted, and then electromagnetism valve closing state is realized in power-off, although aforementioned Power is high, because being moment starting, energy consumption consumption is few, and power-off still can save energy when the work of centre, or even hair when avoiding work The problem of heat, and avoid the other problems occurred by fever.

Embodiment 2: it is characterized in that as shown in Fig. 2, the present embodiment is distinguished with embodiment 1: in order to further ensure electricity The using effect of magnet valve, is provided with the resetting apparatus that plug 4 can be made to reset also in solenoid valve body 1, and resetting apparatus includes multiple Position strut 2, balancing pole 3 and resetting block 9, reset strut 2 be fixed in solenoid valve body 1 in order to reduce reset strut 2 with The probability of 1 junction of solenoid valve body fracture, can will reset strut 2 and solenoid valve body 1 is integrally formed and is arranged, and balancing pole 3 can It is movably arranged on and resets on strut 2, can open up pin hole by the way that pin is arranged on balancing pole 3 on resetting strut 2, make to balance Bar 3, which can swing to be mounted on, to be resetted on strut 2, and plug 4 and resetting block 9 are fixed at above-mentioned 3 both ends of balancing pole, utilize thick stick Rod principle constitutes balanced structure in order to avoid resetting block 9 and 1 inner wall of solenoid valve body collide and causes solenoid valve body 1 Inner wall abrasion, is provided with return unit 8 also between 1 inner wall of resetting block 9 and above-mentioned solenoid valve body, and return unit 8 can be structure letter Single reset spring, when electromagnetic assembly 7 powers off, plug 4 is fallen after rise, and then when the rising of resetting block 9, reset spring and buffer spring are made With similar, play the role of buffering.

Plug 4 can the first venting channels of face 11 be arranged, resetting block 9 can the second venting channels of face 12 be arranged, make electromagnetism The venting channels at least communicated with two on valve body 1 form access, and third venting channels 13 can be arranged in oblique angle, and third is logical The angle of bevel in gas channel 13 is 15 °~60 °, and the angle of bevel of third venting channels 13 is 30 ° in the present embodiment, can be effective Mitigate the noise in solenoid valve use process, enhances the usage experience of user.

The first venting channels 11 and the second venting channels 12 in the present embodiment are arranged at the bottom of solenoid valve body 1, Plug 4 can be located at the surface of the first venting channels 11, and resetting block 9 can be located at the surface of the second venting channels 12.

With that can keep structure for magnetic, dynamic iron core is movably arranged in electromagnetic coil, makes solenoid valve in the present embodiment Short with process conduction time, when solenoid valve is under energized state, dynamic iron core stretches out electromagnetic coil, powers off this moment, and dynamic iron core is protected Stretching state is held, the first venting channels 11 on solenoid valve are closed, and third venting channels 13 are opened, and gas is through 12 row of second channel Out, and a little there is the gap discharge between metallic rod 5 and solenoid valve body 1, then when reversed energization, dynamic iron core is retracted, on plug 4 It rises, and seals up the gap between metallic rod 5 and solenoid valve body 1, return unit 8 also blocks the second venting channels 12 simultaneously, may be used also Dynamic iron core is fixed in electromagnetic coil, under 5 upper end of metallic rod setting suction disc, energized state, dynamic iron core adsorbs suction disc, Suction disc resets when power-off, realizes the open and close of solenoid valve.

Embodiment 3: as shown in figure 3, the present embodiment static iron core 21 is fixedly mounted in electromagnetic coil, return unit 8 is mounted on It in solenoid valve body 1, and is mounted between the upper end of plug 4 and solenoid valve body 1, in order to further ensure the use of solenoid valve Effect is also provided with suction disc 17 in the underface of electromagnetic assembly 7, buffer unit 6 be mounted on 5 upper end of metallic rod and suction disc 17 it Between, the rising of suction disc 17 is sucked in static iron core 21 when energization, and then metallic rod 5 and plug 4 is driven to rise, when power-off, above suction disc 17 The return unit 8 of setting reacts on the decline of suction disc 17, and plug 4 declines under the action of return unit 8, and plug 4 is made to be repositioned to electromagnetism The first venting channels 11 in valve body 1, and gas internal at this time from the second venting channels 13 through 12 row of the second venting channels Out, work stops, and avoids the impurity such as dust from falling in 1 inner product of solenoid valve body, guarantees the using effect of solenoid valve.

Embodiment 4: it is characterized in that as shown in figure 4, the present embodiment is distinguished with above-described embodiment: the electricity in the present embodiment Electromagnetic valve component 7 is electromagnetic coil, is equipped with tension spring 16 in electromagnetic coil side, 16 one end of tension spring is fixed on electromagnetic coil, another End is connected on buffer unit 6 by suction disc 17.

Static iron core 21 in the present embodiment is fixedly mounted in electromagnetic coil, when solenoid valve is under energized state, quiet iron The rising of suction disc 17 is sucked in core 21, and plug 4 is driven to rise, and solenoid valve carries out the tension spring 16 opened, and then drive electromagnetic coil side Lifting, tension spring 16 resets when power-off, and return unit 8 aids in the decline of plug 4, realizes the closing of solenoid valve.

Embodiment 5: it is characterized in that as shown in figure 5, the present embodiment is distinguished with above-described embodiment: the gold in the present embodiment Belong to bar 5 to be detachably arranged on plug 4, i.e. metallic rod 5 and plug 4 made of rubber material is separately positioned, and return unit 8 is installed Between plug 4 and solenoid valve body 1, return unit 8 is answered with described above for the simple reset spring of structure in the process The elastic force very little of position spring plays the role of positioning plug 4.

Static iron core 21 in the present embodiment is fixedly mounted in electromagnetic coil, when solenoid valve is under energized state, quiet iron Suction disc 17 is sucked in core 21, and suction disc 17 rises, and withdraws metallic rod 5, and in the process, return unit 8 not only has positioning plug 4, keeps away Exempt from 4 sideslip of plug, while preventing gas leakage from acting on, also drives and plug is up pushed up by the fluid or gas of the first venting channels 11 4 rise, and can carry out openings completely, and then the tension spring 16 of electromagnetic coil side is driven to lift, and tension spring 16 resets when power-off, drive Metallic rod 5 withstands the decline of plug 4, realizes the closing of solenoid valve.

Embodiment 6: it is characterized in that as shown in fig. 6, the present embodiment is distinguished with above-described embodiment: the gold in the present embodiment Belonging to bar 5 can be the simple steel wire of structure, and the setting of steel wire is so that venting channels passed through for metallic rod 5 in solenoid valve body 1 Become smaller, venting channels are bigger, and the air pressure in solenoid valve is bigger to the effect of plug up pushing tow, cause 4 stability of plug low, steel The setting of silk can guarantee the stability of metallic rod 5, and then guarantee the using effect of solenoid valve.

Return unit 8 in the present embodiment is mounted between 1 inner wall of 4 upper end of plug and solenoid valve body, and return unit 8 is to reset Spring need to have certain elastic force, and in the process, solenoid valve mainly utilizes reset spring to realize and closes.

Embodiment 7: as shown in fig. 7, by the way that one piece of magnetic patch 15, permanent magnetic iron block are arranged in solenoid valve body 1 in this implementation Cladding rubber layer enables to block gas, and another piece of magnetic patch 15, two pieces of same magnetic poles of magnet 15 are arranged outside solenoid valve body 1 It is oppositely arranged, i.e., opposite side is all the pole N or is all the pole S, and after electromagnet 7 is powered, dynamic iron core push-pull rod 20 drives magnetic patch 15 move downward, and using the mutually exclusive principle of like pole, the magnet 15 being located in solenoid valve body 1 is pressed down against, real The closing of existing solenoid valve is flowed conversely, the magnetic patch 15 being located in solenoid valve body 1 loses repulsion in return unit 8 and venting channels 11 Body moves up under the action of up pushing up, and realizes the unlatching of solenoid valve, and there is a natural attraction between the sexes to operate, but the stroke that dynamic iron core is mobile Upper relatively large big, preferably two pieces of magnetic patch 15 are oppositely arranged with magnetic pole in the present embodiment.

Embodiment 8: being characterized in that as shown in figure 8, the present embodiment is distinguished with embodiment 8, can also be located at solenoid valve It places and is adapted therewith with cylindrical plug 4, plug 4 among the magnetic patch (permanent magnet) 15 in cylindrical shape in ontology 1 For rubber plug, keep air-tightness at the first venting channels 11 or the second venting channels 12 good, and can effectively extend making for plug 4 With the service life, the use cost of user is reduced.

Embodiment 9: as shown in figure 9, a kind of solenoid valve, including solenoid valve body 1, it further include electromagnetic assembly 7, electromagnetic assembly 7 can be electromagnet or electromagnetic coil, and above-mentioned solenoid valve body 1 forms multiple venting channels, and above-mentioned venting channels include first logical Gas channel 11, the second venting channels 12 and third venting channels 13, multiple venting channels communicate to form access, lead in the present embodiment Two pieces of mobilizable magnetic patch 15 of setting in above-mentioned solenoid valve body 1 are crossed, are connected between two pieces of magnetic patch 15 by balancing pole 3, phase It is corresponding, two pieces of magnetic patch 15 are fixedly installed outside above-mentioned solenoid valve body 1, above-mentioned magnetic patch 15 all has the pole N and the pole S, is located at electricity Inside and outside two pieces of magnetic patch 15 on 1 left side of magnet valve ontology attract each other after being powered, two pieces of magnetic patch inside and outside 1 the right of solenoid valve body 15 be powered after it is mutually exclusive, i.e. 15 opposite side of inside and outside two pieces of magnetic patch on the left side is respectively the pole N and the pole S, inside and outside two pieces of the right The opposite one end of magnetic patch 15 is the pole N or the pole S, and when electromagnetic assembly 7 moves downward, the left side is located at outside solenoid valve body 1 Magnetic patch 15 attract solenoid valve body 1 in magnetic patch 15, the right be located at solenoid valve body 1 outside magnetic patch 15 repel solenoid valve sheet Magnetic patch 15 in body 1, and the magnetic patch 15 in solenoid valve body 1 will be located at and repelled downwards, the magnetic patch 15 in the present embodiment is permanent magnetism Iron block.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model；Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Although appended drawing reference in figure: 1, solenoid valve body is used more herein；2, strut is resetted；3, balancing pole；4, Plug；5, metallic rod；6, buffer unit；7, electromagnetic assembly；8, return unit；9, resetting block；10, buffer protection shell；11, first is logical Gas channel；12, the second venting channels；13, third venting channels；14, notch；15, magnetic patch；16, tension spring；17, suction disc；18, fixed Position plate；20, dynamic iron core push-pull rod；The terms such as 21 static iron cores, but it does not exclude the possibility of using other terms.Use these arts Language is used for the purpose of being more convenient to describe and explain the essence of the utility model；It is construed as any additional limitation It is all contrary to the spirit of the present invention.

Claims (10)

1. a kind of solenoid valve, including solenoid valve body (1)；It is characterized by also including electromagnetic assembly (7), the electromagnetic assemblies It (7) include the dynamic iron core being placed outside solenoid valve body (1) outside and static iron core (21)；The solenoid valve body (1) forms multiple logical Gas channel, the venting channels include the first venting channels (11), the second venting channels (12) and third venting channels (13), more A venting channels communicate to form access；It is set plug (4) in the solenoid valve body (1), the plug (4) and electromagnetic assembly (7) Between be equipped with buffer unit (6).

2. a kind of solenoid valve according to claim 1, it is characterised in that: set between the plug (4) and buffer unit (6) Have metallic rod (5), the buffer unit (6) is installed between the metallic rod (5) and electromagnetic assembly (7).

3. a kind of solenoid valve according to claim 2, it is characterised in that: the electromagnetic assembly (7) is electromagnetic coil structure, The buffer unit (6) is located at below electromagnetic coil, and under energized state, the dynamic iron core stretches out the electromagnetic coil, powers off shape Under state, the dynamic iron core is kept under stretching state, then reversed energized state, and the dynamic iron core retracts in the electromagnetic coil；Institute It states buffer unit (6) to be externally provided with buffer protection shell (10), the buffer protection shell (10) forms notch (14), and solenoid valve closes shape Under state, the plug (4) closes first venting channels (11), the notch (14) and the second venting channels (12), third Venting channels (13) form access.

4. a kind of solenoid valve according to claim 3, it is characterised in that: the plug (4) is right against first ventilation Channel (11) setting, is equipped with return unit (8) between the solenoid valve body (1) and plug (4).

5. a kind of solenoid valve according to claim 1, it is characterised in that: the electromagnetic assembly (7) is electromagnetic coil structure, Resetting apparatus is set in the solenoid valve body (1), the resetting apparatus includes resetting strut (2), balancing pole (3) and resetting block (9), the balancing pole (3) is movable is installed on the reset strut (2), and the plug (4) and resetting block (9) are fixedly arranged on described Balancing pole (3) both ends.

6. a kind of solenoid valve according to claim 5, it is characterised in that: in the resetting block (9) and solenoid valve body (1) Return unit (8) are equipped between wall.

7. a kind of solenoid valve according to claim 2, it is characterised in that: the electromagnetic assembly (7) is electromagnetic coil structure, Electromagnetic assembly (7) side is equipped with tension spring (16)；Described tension spring (16) one end is connected to electromagnetic assembly (7), and the other end passes through suction disc (17) buffer unit (6) are connected to.

8. a kind of solenoid valve according to claim 7, it is characterised in that: the metallic rod (5) is steel wire.

9. a kind of solenoid valve, including solenoid valve body (1)；It is characterized by also including electromagnetic assembly (7), the electromagnetic assemblies (7) dynamic iron core is equipped in；The solenoid valve body (1) forms multiple venting channels, and the venting channels include that the first ventilation is logical Road (11), the second venting channels (12) and third venting channels (13), multiple venting channels communicate to form access；The solenoid valve Magnetic patch (15) are equipped in ontology (1), the solenoid valve body (1) is externally provided with another magnetic patch (15), and two pieces of magnetic patch (15) are opposite to be set It sets.

10. a kind of solenoid valve, including solenoid valve body (1)；It is characterized by also including electromagnetic assembly (7), the electromagnetic assemblies (7) dynamic iron core is equipped in；The solenoid valve body (1) forms multiple venting channels, and the venting channels include that the first ventilation is logical Road (11), the second venting channels (12) and third venting channels (13), multiple venting channels communicate to form access；The solenoid valve Two pieces of magnetic patch (15) are equipped in ontology (1), two pieces of magnetic patch (15) are connected by balancing pole (3), corresponding, the electromagnetism Valve body (1) is externally provided with two pieces of magnetic patch (15), and the magnetic patch (15) all has the pole N and the pole S.