CN207261777U - A kind of gases at high pressure special electromagnetic valve - Google Patents
A kind of gases at high pressure special electromagnetic valve Download PDFInfo
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- CN207261777U CN207261777U CN201720341595.6U CN201720341595U CN207261777U CN 207261777 U CN207261777 U CN 207261777U CN 201720341595 U CN201720341595 U CN 201720341595U CN 207261777 U CN207261777 U CN 207261777U
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- spool
- connector
- valve
- gases
- high pressure
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Abstract
The utility model discloses a kind of gases at high pressure special electromagnetic valve, including a valve body, a core assembly and one to be provided with the spool housing of coil, and valve body further includes the first connector, the second connector, and the first connector, the second connector use ball face sealing；Core assembly further includes a spool and an active iron, the spool air discharge duct and a valve seat block for limiting spool stroke position for being used to avoid gas compression extension shock caused by work is additionally provided with spool, the utility model adds this part of valve seat block to realize the spacing of spool, spool is reduced because of the abrasion of spacing generation, increase the service life of solenoid valve, at the same time core assembly can be made to be more easy to assemble, the joint sealing face of connector is changed to ball face sealing from original flat seal, ball face sealing is easier in installation process to find sealing surface than flat seal, so as to reach better seal effect, therefore also it is suitable for the bigger margin of tolerance of mating parts sealing surface.
Description
Technical field
Solenoid valve market is the utility model is related to, particularly with regard to a kind of gases at high pressure special electromagnetic valve.
Background technology
Solenoid valve extensive use in the supply of the fluids such as liquid, gas, transmission, control and dynamical system, solenoid valve is normally opened
Carry out self-locking by electromagnetic attraction, gas pressure and spring force with normally closed static working status, reach and valve is turned on and is ended
The purpose of control, is the key components and parts of whole system.
Metered flow and power attenuation are to weigh the important indicator of solenoid valve.Solenoid valve metered flow depends primarily upon electromagnetism
The mechanical structure of valve, increases the volume of fluid flow in valve body, the mobile displacement for increasing spool, the circulation coefficient for improving valve body etc.
Metered flow can be increased.Solenoid valve power attenuation mainly relies on the improvement of electromagnetic valve coil, including the driving voltage of coil,
Electric current, coil turn, coil inductance, resistance, the permeability etc. of magnetic resistance and soft magnetic materials；Also depending on solenoid valve valve
The size of opening force, opening force is smaller, then the power requirement of solenoid valve is smaller.
Higher for pressure, the larger application scenario of flow, then require the unlatching magnetic force of solenoid valve very high, to Packing spring
The coefficient of stiffiness, the leakproofness of sealed valve body has high requirements, and problems with easily occurs：
First, for the solenoid valve of gases at high pressure control system after gas enters from entrance, gas will produce spool pressure
Power, pressure value is related to gas pressure intensity and spool area, such as：The gas of 20Mpa, valve core diameter 5mm, gases at high pressure are to spool
Pressure reach 392.5N, this electromagnetic force to coil requires very high.The most critical factor for influencing solenoid valve metered flow is fluid
Import and export circulation area and spool shape journey, the area of the more big then spool of circulation area is bigger, and sealing ring thickness or line footpath are then
Bigger, this requires the shape Cheng Yue of spool big.The magnetic field that coil produces is that continuously distributed in certain space region passive have rotation
Vector field, the magnetic line of force is the curve of closure, and magnetic induction intensity refers to be passed through on the unit area vertical with magnetic line of force direction
Magnetic line of force number, more remote with the distance in magnetic field, then magnetic induction intensity is weaker, and magnetic force is weaker.Thus spool shape Cheng Yue is big, then breaks
The working clearance of magnet is bigger when electric, then it is higher that magnetic induction intensity requirement is produced to coil.
Secondly, in certain operating conditions, job insecurity phenomenon occurs in solenoid valve, and spool frequently opens percussion valve
Seat, and spool, because of vibration, pipeline fluid pressure fluctuates before and after causing valve；When closing valve, serious punching of the spool to valve seat
Hit, the service life of solenoid valve will be reduced.
Utility model content
The technical problem to be solved by the utility model is to provide one kind design rationally, simple in structure, easily assembling, uses
Service life is high, and stability is good and the gases at high pressure special electromagnetic valve of good airproof performance.
A kind of gases at high pressure special electromagnetic valve, including a valve body, a core assembly and one are provided with the valve core shell of coil
Body, the core assembly are arranged between the valve body and spool housing；Connect it is characterized in that, the valve body further includes first
Head, the second connector, are provided with air inlet on first connector, gas outlet are provided with the second connector；Described first connects
Head, the second connector use ball face sealing.
The core assembly further includes a spool and an active iron, and the spool is arranged on one end of the active iron,
A spring shaft for being cased with spring is provided with the active iron；A secondary valve being axially movable is provided with the active iron
Core, one end of the secondary spool is mobile terminal and the other end is sealed end, the mobile terminal be arranged on the active iron with it is described
Between spool, the sealed end is close to the gas outlet；Be provided with one end of the active iron one close to gas outlet compression
Body；Once spring is arranged in the compression body, one end of the secondary spring withstands spool and the other end withstands compression body；
Spool air discharge duct and the use for being used to avoid gas compression extension shock caused by work is additionally provided with the spool
In the valve seat block for limiting spool stroke position.
In a preferred embodiment of the utility model, the diameter of the mobile terminal of the secondary spool is less than or equal to sealing
The diameter at end.
In a preferred embodiment of the utility model, a valve core seal ring and spool are provided with the spool
O-ring seal.
In a preferred embodiment of the utility model, the active iron is used with compression body and is threadedly coupled.
In a preferred embodiment of the utility model, the battery valve is provided with axial one end of spool housing
Location nut and O-ring seal.
In a preferred embodiment of the utility model, housing O types sealing is arranged with the spool housing
Circle.
In a preferred embodiment of the utility model, an enclosure slot is additionally provided with the spool housing.
In a preferred embodiment of the utility model, set between the valve body and the first connector and the second connector
There is a connector O-ring.
Due to the adoption of the above technical scheme, the beneficial effects of the utility model are：
1st, spool air discharge duct is added on spool, can reduce spool move up and down in spool housing caused by gas
Compand is impacted, and is reduced the abrasion of spool and spool housing, is made solenoid valve more stable in use, add at the same time
The service life of solenoid valve；
2nd, this part of valve seat block is added to realize the spacing of spool, reduces spool because of the abrasion of spacing generation, increase
The service life of solenoid valve, while core assembly can be made to be more easy to assemble.
3rd, the joint sealing face of connector is changed to ball face sealing from original flat seal, ball face sealing is being pacified than flat seal
It is easier to find sealing surface during dress, so as to reach better seal effect, therefore is also suitable for mating parts sealing surface
The bigger margin of tolerance.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of gases at high pressure special electromagnetic valve of the utility model.
Fig. 2 is a kind of preliminary opening schematic diagram of gases at high pressure special electromagnetic valve of the utility model.
Fig. 3 is a kind of fully open state schematic diagram of gases at high pressure special electromagnetic valve of the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
A kind of gases at high pressure special electromagnetic valve shown in Figure 1, including a valve body 100, a core assembly 200 and
One is provided with the spool housing 300 of coil 400, and core assembly 200 is arranged between valve body 100 and spool housing 300.
Valve body 100 further includes the first connector 110, the second connector 120, and air inlet 111 is provided with the first connector 110,
Gas outlet 121 is provided with the second connector 120；First connector 110, the second connector 120 use ball face sealing 500, and sphere is close
Envelope 500 is easier in installation process to find sealing surface than flat seal, so as to reach better seal effect, therefore can also fit
Answer the bigger margin of tolerance of mating parts sealing surface.
Core assembly 200 further includes a spool 210 and an active iron 220, and spool 210 is arranged on the one of active iron 220
End, is provided with a spring shaft 230 for being cased with spring 231 in active iron 220；One is provided with active iron 220 can axially to move
Dynamic secondary spool 240, one end of secondary spool 240 is mobile terminal 241 and the other end is sealed end 242, and mobile terminal 241 is arranged on master
Move between iron 220 and spool 210, sealed end 242 is close to gas outlet 121；Be provided with one end of active iron 220 one close to go out
The compression body 250 of gas port 121；Once spring 260 are arranged in compression body 250, spool 210 is withstood in one end of secondary spring 260
And the other end withstands compression body 250；One is additionally provided with spool 210 and is used to avoid gas compression expansion punching caused by work
The spool air discharge duct 270 and one hit is used for the valve seat block 280 for limiting spool stroke position.
In the present embodiment, the diameter of the mobile terminal 241 of secondary spool 240 is less than or equal to the diameter of sealed end 242, close
The diameter of end-blocking 242 is big, can reach better seal effect, the diameter of mobile terminal 241 is smaller, the gases at high pressure pressure being subject to
Power is also with regard to smaller, it is easier to opens time spool 240.
In the present embodiment, a valve core seal ring 211 and spool O-ring seal 212 are provided with spool 210, it is main
Play sealing.
In the present embodiment, active iron 220 can also use other connection modes with compression body 250 using being threadedly coupled,
Such as key connection.
In the present embodiment, battery valve is provided with location nut 310 and O-shaped close in axial one end of spool housing 300
Seal 320, location nut 310 are mainly placed on outside spool housing 300, protect spool housing 300, and play the effect of beauty, O
Type sealing ring 320 mainly plays sealing.
In the present embodiment, an enclosure slot 330 is additionally provided with spool housing 300.
In the present embodiment, it is provided with a connector O-ring between 100 and first connector 110 of valve body and the second connector 120
130、140。
In embodiment, a housing O-ring seal 340 is arranged with spool housing 300.
The assembling mode of the utility model：
First, secondary spool is put into compression body, active iron is then pressed into compression body, secondary spool can be in compression body and active
Move axially between iron, after valve seat block is set on active iron, secondary spring is set in outside compression body, valve seat block can be in secondary bullet
Moved axially between spring and active iron, spool and valve seat block are together by a threaded connection, and spool can axially move, by spool
Sealing ring and spool O-ring seal are on spool, after spring is set on spring shaft axis, on active iron.
Secondly, core assembly loads spool housing after installation is complete, and housing O-ring seal is set in spool housing,
Coil is sleeved in spool housing, and location nut is screwed on spool housing to lock coil by O-ring seal in location nut.
Finally load valve body, connector O-ring is set in the first connector, on the second connector after, load valve body.
The operation principle of the utility model gases at high pressure special electromagnetic valve：
The schematic diagram of the closed mode of gases at high pressure special electromagnetic valve as shown in Figure 1, when in off-position, solenoid valve
Close, gas is entered by air inlet, then enters spool housing by spool, at this time, the pressure of air inlet is more than gas outlet
Pressure, spool compresses with time spool by the gases at high pressure in spool housing.
The schematic diagram of the preliminary opening of gases at high pressure special electromagnetic valve as shown in Figure 2, after energization, active iron and valve
Electromagnetic force is produced between core shell body and is mutually adsorbed, after the pressure for overcoming time spring, active sheet iron strip moves compression body and produces displacement,
After displacement certain distance, compression body is contacted with the sealing ring of the sealed end of time spool, at this time, between active iron and spool housing
Electromagnetic force is multiplied since distance is reduced, and overcomes pressure of the gases at high pressure to secondary spool, time spool is separated with spool,
Gases at high pressure can circulate between air inlet, gas outlet and spool at this time, and spool is in the state of balance, and solenoid valve is preliminary
Open and complete.
The schematic diagram of the fully open state of gases at high pressure special electromagnetic valve as shown in Figure 3, when preliminary opening knot
Shu Hou, is adsorbed completely between active iron and spool housing because being subject to electromagnetic force, and gas communication is smooth, active iron and spool housing
The distance between be reduced to 0, secondary spring is compressed, and compressed secondary spring produces thrust and promotes spool, makes spool and gas outlet
Completely separable, solenoid valve fully opens completion.
The advantages of basic principle and main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed scope is defined by the appending claims and its equivalent thereof.
Claims (8)
1. a kind of gases at high pressure special electromagnetic valve, including a valve body, a core assembly and one are provided with the spool housing of coil,
The core assembly is arranged between the valve body and spool housing；It is characterized in that, the valve body further includes the first connector,
Two connectors, are provided with air inlet on first connector, gas outlet are provided with the second connector；First connector,
Two connectors use ball face sealing；
The core assembly further includes a spool and an active iron, and the spool is arranged on one end of the active iron, described
A spring shaft for being cased with spring is provided with active iron；A secondary spool being axially movable, institute are provided with the active iron
The one end for stating time spool is mobile terminal and the other end is sealed end, the mobile terminal be arranged on the active iron and the spool it
Between, the sealed end is close to the gas outlet；Be provided with one end of the active iron one close to gas outlet compression body；Institute
State and once spring is arranged in compression body, one end of the secondary spring withstands spool and the other end withstands compression body；In the valve
A spool air discharge duct and one for being used to avoid gas compression extension shock caused by work is additionally provided with core for limiting
The valve seat block of spool stroke position.
2. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that the mobile terminal of the secondary spool
Diameter is less than or equal to the diameter of sealed end.
3. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that be provided with one on the spool
Valve core seal ring and spool O-ring seal.
4. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that the active iron is adopted with compression body
It is threadedly coupled.
5. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that the solenoid valve is in spool housing
Axial one end be provided with location nut and O-ring seal.
6. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that be arranged in the spool housing
There is a housing O-ring seal.
7. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that also set in the spool housing
It is equipped with an enclosure slot.
8. a kind of gases at high pressure special electromagnetic valve as claimed in claim 1, it is characterised in that in the valve body and the first connector
And second be provided with a connector O-ring between connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341595.6U CN207261777U (en) | 2017-04-01 | 2017-04-01 | A kind of gases at high pressure special electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341595.6U CN207261777U (en) | 2017-04-01 | 2017-04-01 | A kind of gases at high pressure special electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261777U true CN207261777U (en) | 2018-04-20 |
Family
ID=61914336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341595.6U Active CN207261777U (en) | 2017-04-01 | 2017-04-01 | A kind of gases at high pressure special electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261777U (en) |
-
2017
- 2017-04-01 CN CN201720341595.6U patent/CN207261777U/en active Active
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