CN205689868U - A kind of environmental-protecting electromagnetic valve - Google Patents
A kind of environmental-protecting electromagnetic valve Download PDFInfo
- Publication number
- CN205689868U CN205689868U CN201520936985.9U CN201520936985U CN205689868U CN 205689868 U CN205689868 U CN 205689868U CN 201520936985 U CN201520936985 U CN 201520936985U CN 205689868 U CN205689868 U CN 205689868U
- Authority
- CN
- China
- Prior art keywords
- valve
- guide
- valve seat
- plunger shaft
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
This utility model relates to Pneumatic Control Technology field, particularly to a kind of environmental-protecting electromagnetic valve, including valve body, guide's valve seat, electromagnetic coil assembly, pilot valve assembly.Described guide's valve seat is molded by engineering plastics, and except having functional structure, it is ensured that outside mechanical strength, nonfunctional area forms upper plenum and lower cavity, and the two is connected by B through hole.Pressure produced by electromagnetic valve work residual air is all digested by described upper plenum and described lower void space, does not uses environment to carry out gas with electromagnetic valve and exchanges.Described electromagnetic coil assembly right side blind hole, left side mesopore and kink are on described pilot valve assembly, and are fixed on described guide's valve seat with two diagonal angle screws.This utility model environmental suitability is strong, and noise is little, can not only adapt to require quiet clean environment, and adapt to air pollution environment, expand range of application, also extend service life simultaneously.
Description
Technical field
This utility model relates to Pneumatic Control Technology field, particularly to a kind of environmental-protecting electromagnetic valve.
Background technology
The solenoid of existing pilot-type solenoid valve is typically all by pilot head core assembly through solenoid, and trim ring nut is set at pilot head core assembly (static iron core end) prolongation is fixed, dynamic iron core and the gap of core assembly shell in utilizing pilot head core assembly, and static iron core mesopore, passage is set again in trim ring nut, form pilot head core assembly steam vent, it is achieved the discharge of residual air when electromagnetic valve resets.During the work of the most existing pilot-type solenoid valve, main valve plug piston motion residual air is discharged, and is typically all and realizes residual air discharge with extraneous by pore by setting.The most existing pilot-type solenoid valve all the time with external environment produce gas exchange, i.e. electromagnetic valve seem " breathing " surrounding air, affect electromagnetic valve use environment air.When electromagnetic valve uses in cleaning ambient, electromagnetic valve work will pollute environment；When electromagnetic valve uses in sweated environment, poor environment will pollute electromagnetic valve internal component, affect its service life.This problem governs electromagnetic valve use in some extreme environment.
Summary of the invention
This utility model is to solve the above-mentioned deficiency existing for prior art, it is provided that not carrying out gas exchange, the internal digestion of work residual air in a kind of work process with external environment, use environmental suitability strong, noise is little, the environmental-protecting electromagnetic valve of life-span length.
This utility model realizes by the following technical solutions for solving above-mentioned technical problem:
A kind of environmental-protecting electromagnetic valve, including valve body, guide's valve seat, electromagnetic coil assembly, pilot valve assembly.Described valve body includes valve body, bonnet, spool, secondary piston, back piston, described bonnet, described back piston constitute back piston chamber, described back piston chamber communicates with the valve of main valve air inlet, described guide's valve seat, and described secondary piston, described guide's valve base inner wall, described valve body front end, described spool constitute A plunger shaft；Described secondary piston, described both guide's valve base inner walls constitute B plunger shaft；Described B plunger shaft is connected by C through hole with valve chamber；Cover plate is had on described guide's valve seat.
Described guide's valve seat is molded by engineering plastics, except having functional structure, ensure outside mechanical strength, nonfunctional area forms upper plenum and lower cavity, and connect described upper plenum and described lower cavity by B through hole, described guide's valve seat is setting for connecting described lower cavity and the A through hole of described A plunger shaft with described valve body phase contact surface, pressure produced by the work residual air of described A plunger shaft and described B plunger shaft all by described upper plenum and the digestion of described lower void space of described guide's valve seat, does not uses environment to carry out gas with electromagnetic valve and exchanges.
Described electromagnetic coil assembly right side blind hole, left side mesopore and kink are on described pilot valve assembly, and are fixed on described guide's valve seat with two diagonal angle screws.
Described cover plate is provided with A ventilation breach, with the described upper plenum connecting described guide's valve seat and the chamber, A gap being made up of described electromagnetic coil assembly and described pilot valve assembly.
The static iron core of described pilot valve assembly, there is D through hole at left end center, and right-hand member has B ventilation breach.
When a kind of environmental-protecting electromagnetic valve does not works, the described valve on described guide's valve seat is blocked by described dynamic iron core.When main valve inlet charge works, pilot air is by the described valve on described guide's valve seat, back down described dynamic iron core, pilot air injects described valve chamber, and the most described dynamic iron core overcomes the elastic force of spring to move right, and seals the described D through hole of described static iron core, make pilot air can only enter described B plunger shaft through described C through hole, under the described secondary piston and described back piston pressure difference effect of described spool two end, promote described secondary piston to be moved to the left, drive described spool to switch main valve.Meanwhile, described A plunger shaft is reducing, air-flow is injected into described lower cavity through described A through hole by the air pressure produced, because described lower cavity volume is more much larger than described A plunger shaft, the pressure in described A plunger shaft can be made to decline to a great extent so connecting described lower cavity, the movement of described secondary piston will not be affected.If described lower cavity is also not enough to digest the pressure in described A plunger shaft, owing to described B through hole has connected described upper plenum and described lower cavity, the most also can continue to digest the pressure in described A plunger shaft by described upper plenum, it is not necessary to drain in electromagnetic valve external environment.
When main valve air inlet stops air inlet work, described dynamic iron core is moved to the left under the elastic force effect of described spring, blocks described valve, makes described dynamic iron core and described static iron core disengage, forms spatia.Meanwhile, the air-flow in described B plunger shaft discharges pressure through described C through hole, causes described secondary piston and resets to the right.Air-flow in described B plunger shaft enters described valve chamber through described C through hole, then the chamber, B gap on described pilot valve assembly is utilized, through described spatia, ventilate breach, chamber, described A gap through the described D through hole of described static iron core, described B again, after, the ventilation of the described A on described cover plate breach flows into described upper plenum, digested on work residual air in described B plunger shaft also real presently described upper plenum, making described secondary piston reset the most to the right, the air pressure in the most described B plunger shaft will not affect the reset of described secondary piston.Equally, if described upper plenum is also not enough to digest the pressure in described B plunger shaft, owing to described B through hole has connected described upper plenum and described lower cavity, the most also can continue to digest the pressure in described B plunger shaft by described lower cavity, it is not necessary to drain in electromagnetic valve external environment.
Therefore, described upper plenum and described lower cavity on described guide's valve seat have digested electromagnetic valve all working residual air, and electromagnetic valve need not carry out gas exchange with external environment in the course of the work.
Because electromagnetic valve does not carries out gas exchange with external environment, so reducing the noise during conventional solenoid valve discharge work residual air in the course of the work.
This utility model has the beneficial effect that in work process need not carry out gas exchange with external environment, the internal digestion of work residual air, noise reduces the most for it, enhance the feature of environmental protection of use, can not only adapt to require quiet clean environment, and adapt to air pollution environment, expand range of application, also extend service life simultaneously.
Accompanying drawing explanation
Fig. 1 is this utility model: a kind of environmental-protecting electromagnetic valve exploded perspective view.
Fig. 2 is this utility model: a kind of environmental-protecting electromagnetic valve generalized section.
Fig. 3 is this utility model: a kind of environmental-protecting electromagnetic valve section close-up schematic view.
Fig. 4 is this utility model: a kind of environmental-protecting electromagnetic valve guide's valve seat axonometric chart.
Description of symbols in figure: 1, valve body；2, guide's valve seat；3, electromagnetic coil assembly；4, pilot valve assembly；5, screw；11, spool；12, valve body；13, back piston；14, bonnet；15, back piston chamber；21, secondary piston；22, B plunger shaft；23, C through hole；24, valve chamber；25, cover plate；26, lower cavity；27, valve；28, B through hole；29, lower cavity；30, A plunger shaft；31, A through hole；32, A ventilation breach；41, chamber, B gap；42, dynamic iron core；43, spatia；44, chamber, A gap；45, static iron core；46, B ventilation breach；47, D through hole；48, spring.
Detailed description of the invention
For the technological means making this utility model realize, character of innovation, reach purpose and be easy to understand with effect, below in conjunction with being specifically illustrating, this utility model is expanded on further.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of environmental-protecting electromagnetic valve, including valve body (1), guide's valve seat (2), electromagnetic coil assembly (3), pilot valve assembly (4).Described valve body (1) includes valve body (12), bonnet (14), spool (11), secondary piston (21), back piston (13), described bonnet (14), back piston (13) constitute back piston chamber (15), described back piston chamber (15) communicates with main valve air inlet, valve (27), and described secondary piston (21), guide's valve seat (2) inwall, valve body (12) front end, spool (11) four constitute A plunger shaft (30)；Described secondary piston (21), guide's valve seat (2) both inwalls constitute B plunger shaft (22)；Described B plunger shaft (22) is connected by C through hole (23) with valve chamber (24)；Cover plate (25) is had on described guide's valve seat (2).
Described guide's valve seat (2) is molded by engineering plastics, except having functional structure, ensure outside mechanical strength, nonfunctional area forms upper plenum (26) and lower cavity (29), and by B through hole (28) connection upper plenum (26) and lower cavity (29), described guide's valve seat (2) is setting the A through hole (31) for connecting lower cavity (29) and A plunger shaft (30) with valve body (12) phase contact surface, pressure produced by the work residual air of described A plunger shaft (30) and B plunger shaft (22) is all by upper plenum (26) and the digestion of lower cavity (29) space of guide's valve seat (2), do not use environment to carry out gas with electromagnetic valve to exchange.
Described electromagnetic coil assembly (3) right side blind hole, left side mesopore and kink are on pilot valve assembly (4), and are fixed on guide's valve seat (2) with two diagonal angle screws (5).
Described cover plate (25) is provided with A ventilation breach (32), with the upper plenum (26) connecting guide's valve seat (2) and the chamber, A gap (44) being made up of electromagnetic coil assembly (3) and pilot valve assembly (4).
The static iron core (45) of described pilot valve assembly (4), there is D through hole (47) at left end center, and right-hand member has B ventilation breach (46).
Implementation process: when a kind of environmental-protecting electromagnetic valve does not works, the passive iron core (42) of the valve (27) on guide's valve seat (2) blocks.When main valve inlet charge works, pilot air is by the valve (27) on guide's valve seat (2), back down dynamic iron core (42), pilot air injects valve chamber (24), move iron core (42) overcomes the elastic force of spring (48) to move right simultaneously, seal the D through hole (47) of static iron core (45), make pilot air can only enter B plunger shaft (22) through C through hole (23), under the secondary piston (21) and back piston (13) pressure difference effect of spool (11) two end, secondary piston (21) is promoted to be moved to the left, band movable valve plug (11) switching main valve.Meanwhile, A plunger shaft (30) is reducing, air-flow is injected into lower cavity (29) through A through hole (31) by the air pressure produced, because lower cavity (29) volume ratio A plunger shaft (30) is much larger, so the pressure in cavity (29) can make A plunger shaft (30) under connection declines to a great extent, the movement of secondary piston (21) will not be affected.If lower cavity (29) is also not enough to digest the pressure in A plunger shaft (30), owing to B through hole (28) has connected upper plenum (26) and lower cavity (29), the most also can continue to digest the pressure in A plunger shaft (30) by upper plenum (26), it is not necessary to drain in electromagnetic valve external environment.
When main valve air inlet stops air inlet work, dynamic iron core (42) is moved to the left under the elastic force effect of spring (48), block valve (27), make iron core (42) and static iron core (45) disengage, form spatia (43).Meanwhile, the air-flow in B plunger shaft (22) discharges pressure through C through hole (23), causes secondary piston (21) and resets to the right.Air-flow in B plunger shaft (22) enters valve chamber (24) through C through hole (23), then the chamber, B gap (41) on pilot valve assembly (4) is utilized, through spatia (43), again through the D through hole (47) of static iron core (45), B ventilation breach (46), chamber, A gap (44), after, ventilation breach of the A on cover plate (25) (32) flows into upper plenum (26), work residual air in B plunger shaft (22) also realizes being digested on upper plenum (26), secondary piston (21) is made to reset to the right smoothly, namely the air pressure in B plunger shaft (22) will not affect the reset of secondary piston (21).Equally, if upper plenum (26) is also not enough to digest the pressure in B plunger shaft (22), owing to B through hole (28) has connected upper plenum (26) and lower cavity (29), the most also can continue to digest the pressure in B plunger shaft (22) by lower cavity (29), it is not necessary to drain in electromagnetic valve external environment.
Therefore, upper plenum (26) and lower cavity (29) on guide's valve seat (2) have digested electromagnetic valve all working residual air, and electromagnetic valve need not carry out gas exchange with external environment in the course of the work.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (4)
1. an environmental-protecting electromagnetic valve, including valve body (1), guide's valve seat (2), electromagnetic coil assembly (3), pilot valve assembly (4),
Described valve body (1) includes valve body (12), bonnet (14), spool (11), secondary piston (21), back piston (13), institute
State bonnet (14), back piston (13) constitutes back piston chamber (15), described back piston chamber (15) and main valve air inlet, valve
(27) communicate, described secondary piston (21), guide's valve seat (2) inwall, valve body (12) front end, spool (11) four structure
Become A plunger shaft (30)；Described secondary piston (21), guide's valve seat (2) both inwalls constitute B plunger shaft (22)；Described B
Plunger shaft (22) is connected by C through hole (23) with valve chamber (24)；Cover plate (25) is had on described guide's valve seat (2),
It is characterized in that: described guide's valve seat (2) is molded by engineering plastics, except having functional structure, it is ensured that outside mechanical strength,
Nonfunctional area forms upper plenum (26) and lower cavity (29), and by B through hole (28) connection upper plenum (26) and lower cavity
(29), described guide's valve seat (2) is being provided for connecting lower cavity (29) and A plunger shaft with valve body (12) phase contact surface
(30) A through hole (31), pressure produced by the work residual air of described A plunger shaft (30) and B plunger shaft (22) is equal
Upper plenum (26) and lower cavity (29) space by guide's valve seat (2) digest, and do not use environment to carry out gas with electromagnetic valve
Exchange.
A kind of environmental-protecting electromagnetic valve the most according to claim 1, it is characterised in that: described electromagnetic coil assembly (3) right side blind hole,
Left side mesopore and kink are on pilot valve assembly (4), and are fixed on guide's valve seat (2) with two diagonal angle screws (5).
A kind of environmental-protecting electromagnetic valve the most according to claim 1, it is characterised in that: described cover plate (25) is provided with A ventilation breach (32),
With the upper plenum (26) connecting guide's valve seat (2) and the A being made up of electromagnetic coil assembly (3) and pilot valve assembly (4)
Chamber, gap (44).
A kind of environmental-protecting electromagnetic valve the most according to claim 1, it is characterised in that: the static iron core (45) of described pilot valve assembly (4),
There is D through hole (47) at left end center, and right-hand member has B ventilation breach (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936985.9U CN205689868U (en) | 2015-11-21 | 2015-11-21 | A kind of environmental-protecting electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936985.9U CN205689868U (en) | 2015-11-21 | 2015-11-21 | A kind of environmental-protecting electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689868U true CN205689868U (en) | 2016-11-16 |
Family
ID=57263713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520936985.9U Active CN205689868U (en) | 2015-11-21 | 2015-11-21 | A kind of environmental-protecting electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653828A (en) * | 2021-08-30 | 2021-11-16 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
-
2015
- 2015-11-21 CN CN201520936985.9U patent/CN205689868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653828A (en) * | 2021-08-30 | 2021-11-16 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
| CN113653828B (en) * | 2021-08-30 | 2024-05-03 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017020537A1 (en) | Electromagnetic water supply valve | |
| CN201265693Y (en) | Airflow impulse valve | |
| CN103615580A (en) | Two-way decompression valve | |
| CN202432018U (en) | Two-position five-way solenoid valve | |
| CN205689868U (en) | A kind of environmental-protecting electromagnetic valve | |
| CN204664524U (en) | A kind of intake valve for exhaust end base of oil injection threaded bolt formula vavuum pump | |
| CN205298388U (en) | Damping air spring | |
| CN204345034U (en) | A kind of compressed natural gas guide electromagnetic valve | |
| CN106286892A (en) | Three-way magnetic valve | |
| CN105318085A (en) | Environment-friendly electromagnetic valve | |
| CN101943276B (en) | Combined air valve | |
| CN204372226U (en) | A kind of solenoid valve | |
| CN214368089U (en) | Electromagnetic valve with manual emergency switch | |
| CN201344279Y (en) | Diaphragm type solenoid valve with large flow capacity | |
| CN209085856U (en) | A kind of pre- cubing of solenoid valve | |
| CN212672428U (en) | Double-magnetic-combination step-by-step electromagnetic valve | |
| CN203823142U (en) | Combination valve | |
| CN211259750U (en) | One-way interface gas circuit replacing device | |
| CN217056528U (en) | Jet valve armature guide structure | |
| CN207660922U (en) | Air-powered electromagnetic combination valve and double-acting cylinder control system | |
| CN106286893A (en) | Three-way magnetic valve | |
| CN106286894A (en) | Three-way magnetic valve | |
| CN221348043U (en) | Pressure release valve, air suspension and vehicle | |
| CN203770088U (en) | Pneumatic energy-saving gas inlet valve | |
| CN106641395B (en) | Knife switch type high-temperature high-pressure zero leakage electromagnetic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |