CN105422872B - Guiding high pressure valve - Google Patents
Guiding high pressure valve Download PDFInfo
- Publication number
- CN105422872B CN105422872B CN201510980526.5A CN201510980526A CN105422872B CN 105422872 B CN105422872 B CN 105422872B CN 201510980526 A CN201510980526 A CN 201510980526A CN 105422872 B CN105422872 B CN 105422872B
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- Prior art keywords
- valve
- pilot valve
- pilot
- piston
- air inlet
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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
- 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
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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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
Abstract
The present invention provides a kind of guiding high pressure valve, belong to high pressure valve field, including pilot valve and main valve, the main valve includes cylinder body, piston, main valve air inlet and main valve gas outlet, space in cylinder body is divided into upper chamber and lower chambers by the piston, through hole is equipped between upper chamber and lower chambers, the lower chambers are connected with main valve air inlet, and the main valve gas outlet is arranged on the lower face of piston；Guide's valve chamber and spool are equipped with the pilot valve, is offering pilot valve valve port with the corresponding position of spool in guide's valve chamber, the pilot valve is equipped with pilot valve air inlet and pilot valve passage, and the pilot valve passage is connected with pilot valve valve port；The pilot valve air inlet is connected with the upper chamber of main valve.This guiding high pressure valve, compact-sized, switch time is short, and stability is high, long lifespan.
Description
Technical field
The present invention relates to high pressure valve field, in particular to a kind of guiding high pressure valve.
Background technology
High pressure valve is widely used to the every field of industry manufacture, is mainly used for controlling gas, liquid etc. various types of
The flowing of type fluid.At present, the high-pressure air feed valve used in the equipment of plastic bottle production is a kind of interior pilot diaphragm structure electricity
Magnet valve, referred to as diaphragm high pressure valve.Interior pilot diaphragm high pressure valve is two position two-way valve.Bottle blowing machine manufacturer is usually required multiple
Such valve is integrated according to blowing technology requirement, to complete several committed steps in blowing technology：The pre- blowing bottle parison of mesohigh；
High pressure blow-gas makes plastic bottle shape；Discharge gases at high pressure.Since diaphragm high pressure valve switch time is longer and stability is poor, cause
Blow that bottle speed is slow, and the plastic bottle quality processed is low.In addition, the diaphragm service life in this diaphragm high pressure valve is nor very
It is long, it can be only applied in some low side bottle blowing machines.
The content of the invention
The present invention provides a kind of guiding high pressure valve, it is intended to improves the above problem.
What the present invention was realized in：
Guiding high pressure valve, including pilot valve and main valve, the main valve include cylinder body, piston, main valve air inlet and main valve
Space in cylinder body is divided into upper chamber and lower chambers by gas outlet, the piston, and through hole is equipped between upper chamber and lower chambers,
The lower chambers are connected with main valve air inlet, and the main valve gas outlet is arranged on the lower face of piston；Set in the pilot valve
There are guide's valve chamber and spool, pilot valve valve port is being offered with the corresponding position of spool in guide's valve chamber, it is described
Pilot valve is equipped with pilot valve air inlet and pilot valve passage, and the pilot valve passage is connected with pilot valve valve port；The guide
Valve air inlet is connected with the upper chamber of main valve.
Main valve air inlet and main valve gas outlet are connected with lower chambers, when piston moves downwardly to lowermost end, piston
Lower face block path between main valve air inlet and main valve gas outlet, at this time, main valve air inlet still by lower chambers with
Through hole keeps connection.When the piston is moving up, the path between main valve air inlet and main valve gas outlet is opened.
The guiding high pressure valve of this structure, the opening and closing of pilot valve valve port is controlled by guide structure, further to control
The opening and closing of main valve, this high pressure valve, compact-sized, switch time is short, and stability is high, long lifespan.
Further, the pilot valve air inlet is connected with guide's valve chamber.
Compressed gas in upper chamber enters guide's valve chamber through pilot valve air inlet, then enters guide through pilot valve valve port
Valve passage is discharged, and forms guide's gas circuit.This guiding high pressure valve, pilot valve air inlet directly with pilot valve chamber, are tied
Structure is simple, and the stability of pilot valve is high.
Further, the pilot valve air inlet is connected with pilot valve valve port, and the pilot valve is arranged equipped with pilot valve
Gas port, guide's valve outlet are connected with guide's valve chamber.
Pilot valve air inlet one end is connected with the upper chamber of main valve, and the other end is connected with pilot valve valve port, upper chamber
In compressed gas through pilot valve air inlet reach pilot valve valve port, then enter guide's valve chamber through pilot valve valve port, then pass through
The guide's valve outlet discharge being connected with guide's valve chamber, forms guide's gas circuit.In this process, compressed gas is to guide
Valve, which serves, to be pushed open, and this guiding high pressure valve, the opening time of guide structure is short, so as to be conducive to shorten whole high pressure valve
Opening time.
The guiding high pressure valve of this structure, the opening and closing of pilot valve valve port is controlled by guide structure, further to control
The opening and closing of main valve, guide structure can be with the opening and closings of the energy hole heavy caliber main valve of very little, and opening/closing time is short, efficient.This
Kind structure makes main valve inner carrier stroke unrestricted, thus main valve gas outlet aperture is big, and flow is big.In addition, even if in main valve
There is minute leakage at sealing ring, the function of whole high pressure valve will not be influenced, therefore, the stability of this guiding high pressure valve
Height, long lifespan.
Further, the pilot valve air inlet is connected with pilot valve passage.
The high pressure valve of this structure, compressed gas directly can enter guide's valve chamber from pilot valve passage, then through guide
Valve outlet is discharged；Meanwhile compressed gas directly can also enter pilot valve air inlet from pilot valve passage, hence into elder generation
The upper chamber of pilot valve air inlet connection so that epicoele room pressure drastically raises, and moves down piston, closes main gas circuit.This
Sample, which is set, to be advantageous in that, guide structure is capable of the opening and closing of efficient control bound body, so that the greatly opening and closing of shortening main valve
Time, stability is high, long lifespan.
Further, the pilot valve includes coil, spool and solenoid tube, annular on the side wall of the spool and solenoid tube
Coil is provided with, one end of the spool is connected with solenoid tube, and the other end stretches into guide's valve chamber, and the spool is close to guide
One end of valve valve port is provided with the first elastomeric element, the both ends of first elastomeric element respectively with spool and pilot valve chamber side
Wall is in contact.
Pilot valve can be normally open valve, or normally close valve.When pilot valve is normally close valve, pilot valve valve port during no power
It is closed, pilot valve valve port is in open mode during energization；When pilot valve is normally open valve, pilot valve valve port during no power
In open mode, pilot valve valve port is closed during energization.Be provided with pilot valve air inlet on pilot valve, pilot valve into
Gas port is connected with pilot valve passage or guide's valve chamber, when pilot valve valve port is in open mode, pilot valve air inlet,
Guide's valve chamber and pilot valve passage three are connected.
Further, end cap is equipped with the top of the upper chamber, the second elastomeric element is provided between the end cap and piston.
Piston moves up, and compresses the second elastomeric element, and when epicoele room pressure increases, piston moves down, and second
The restoring force of elastomeric element promotes piston to move down, while overcomes the frictional force between piston and cylinder body.
Further, the through hole is arranged on piston or cylinder body.
The both ends of through hole are respectively communicated with upper chamber and lower chambers, and when through hole is arranged on piston, through hole is cylinder, is led to
The lower end in hole can be directly adjacent with main valve air inlet, and the path that compressed gas via through holes reach upper chamber is short.When through hole is set
When on cylinder body, the integrality of piston is high, service life length.
Further, the piston is equipped with least one annular groove on the side wall with cylinder contact, in the annular groove
Elastomer circle is placed with, the ring slot outside face is provided with sealing ring.
The advantages of this arrangement are as follows both it had been avoided that gap herein in a disguised form added the channel diameter of guide's air inlet, from
And ensure the stability of switch time；Meanwhile the requirement of fitness between piston outer wall and lid inner wall has been greatly reduced, from
And reduce difficulty of processing.Sealing ring is set, annular groove-elastomer circle-sealing ring is formed between piston outer wall and lid inner wall
Structure, reduces the frictional force between piston and cylinder body, while can still keep good after sealing ring or cylinder wall are worn
Leakproofness.
Further, material of the piston on the position being in contact with cylinder body is plastics, and/or the piston with
The material on position that the upper surface of main valve gas outlet is in contact is plastics.
When piston pumps in cylinder body, between piston meeting and the upper surface of cylinder wall and main valve gas outlet
Produce contact and friction.Cylinder body is metal, and the material of piston can also can be partly plastics with all plastics.Main valve
Gas outlet can be directly opened on cylinder body, can also be independently arranged as a single component；When main valve is closed, piston
Lower face is in contact with the upper surface of main valve gas outlet, when the portion that piston is in contact with the upper surface of cylinder body and main valve gas outlet
When the material of position is plastics, it can effectively reduce touching between metallic piston and the upper surface of metal cylinder body and main valve gas outlet
Hit and rub, while without setting seal at the contact surface of piston Yu main valve gas outlet upper surface, effectively prevent sealing
Part problem of aging, so as to extend the service life of high pressure valve.
Further, the end cap is provided with seal in the side contacted with cylinder body.
The purpose for setting seal is the frictional force reduced between end cap and cylinder body, while upper chamber is kept sealing.
The beneficial effects of the invention are as follows：The guiding high pressure valve that the present invention is obtained by above-mentioned design, in use, compressed gas
Body enters lower chambers from main valve air inlet, then is discharged through main valve outlet passageway from main valve gas outlet, forms main gas circuit.Into cavity of resorption
The Partial shrinkage gas via through holes of room enter upper chamber, then enter guide's valve chamber through pilot valve air inlet, form guide's gas circuit.
Opening or closing at guide structure control pilot valve valve port, so as to control the opening and closing of guide's gas circuit.When pilot valve valve port is in
During open mode, the compressed gas in lower chambers is flowed out through pilot valve air inlet, so that the air pressure in upper chamber is less than lower chambers
In air pressure, piston moves up, so that circulating between main valve air inlet and main valve gas outlet, opens main gas circuit.Work as guide
When valve valve port is closed, the pressure in upper chamber drastically raises, and moves down piston, so as to close main gas circuit.
The guiding high pressure valve of this structure, the opening and closing of pilot valve valve port is controlled by guide structure, further to control
The opening and closing of main valve, guide structure can be with the opening and closings of the energy hole heavy caliber main valve of very little, and opening/closing time is short, efficient.This
The guide structure of kind makes main valve inner carrier stroke unrestricted, thus main valve gas outlet aperture is big, and flow is big.It is in addition, even if main
Have minute leakage at sealing ring in valve, the function of whole high pressure valve will not be influenced, therefore, this guiding high pressure valve it is steady
Qualitative height, long lifespan.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram for the guiding high pressure valve that embodiment of the present invention embodiment one provides；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the structure diagram for the guiding high pressure valve that embodiment of the present invention embodiment two provides；
Fig. 4 is the partial enlarged view of Fig. 3；
Fig. 5 is the structural representation of guide's valve portion in the guiding high pressure valve that embodiment of the present invention embodiment one provides
Figure.
Scheming acceptance of the bid note is respectively：
Pilot valve 101, coil 1011, spool 1012, solenoid tube 1013；
Guide's valve chamber 102, pilot valve air inlet 103, pilot valve valve port 104, pilot valve passage 105, guide's valve exhaust
The 106, first elastomeric element 108 of mouth, cylinder body 109, piston 110, upper chamber 111, lower chambers 112, through hole 113, main valve air inlet
114th, main valve gas outlet 115, main valve outlet passageway 116, end cap 117, the second elastomeric element 118, seal 120, annular groove
121st, sealing ring 122, convex block 124, upper surface 125.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in mode, is clearly and completely described the technical solution in embodiment of the present invention, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The scope of protection.Therefore, below the detailed description of the embodiments of the present invention to providing in the accompanying drawings be not intended to limit will
The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained without creative efforts, belongs to this
Invent the scope of protection.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the equipment or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
- Fig. 5 is please referred to Fig.1,
The guiding high pressure valve that present embodiment provides, including pilot valve 101 and main valve, the main valve include cylinder body 109,
Space in cylinder body 109 is divided into upper chamber by piston 110, main valve air inlet 114 and main valve gas outlet 115, the piston 110
111 and lower chambers 112, through hole 113, the lower chambers 112 and main valve air inlet are equipped between upper chamber 111 and lower chambers 112
114 are connected, and the main valve gas outlet 115 is arranged on the lower face of piston 110；Guide's valve chamber is equipped with the pilot valve 101
Room 102 and spool 1012, guide's valve chamber 102 is interior to offer pilot valve valve port with 1012 corresponding position of spool
104, the pilot valve 101 is equipped with pilot valve air inlet 103 and pilot valve passage 105, the pilot valve passage 105 and guide
Valve valve port 104 is connected；The pilot valve air inlet 103 is connected with the upper chamber 111 of main valve.
Main valve air inlet 114 and main valve gas outlet 115 are connected with lower chambers 112, when piston 110 moves downwardly to most
During bottom, the lower face of piston 110 blocks the path between main valve air inlet 114 and main valve gas outlet 115, at this time, main valve into
Gas port 114 still keeps connecting by lower chambers 112 with through hole 113.When piston 110 moves upwards, main valve air inlet 114 with
Path between main valve gas outlet 115 is opened.
When in use, compressed gas enters lower chambers 112 from main valve air inlet 114, then through main valve outlet passageway 116 from master
Valve air gate 115 is discharged, and forms main gas circuit.Partial shrinkage gas via through holes 113 into lower chambers 112 enter upper chamber 111,
Enter guide's valve chamber 102 through pilot valve air inlet 103 again, form guide's gas circuit.At guide structure control pilot valve valve port 104
Open or close, so as to control the opening and closing of guide's gas circuit.When pilot valve valve port 104 is in open mode, in lower chambers 112
Compressed gas flowed out through pilot valve air inlet 103 it is living so that the air pressure in upper chamber 111 is less than the air pressure in lower chambers 112
Plug 110 moves up, so that circulating between main valve air inlet 114 and main valve gas outlet 115, opens main gas circuit.Work as pilot valve
When valve port 104 is closed, the pressure in upper chamber 111 drastically raises, and moves down piston 110, so as to close master
Gas circuit.
The guiding high pressure valve of this structure, pilot valve can be normally open valve or normally close valve, guiding high pressure valve
The opening and closing of pilot valve valve port 104 is controlled by pilot valve, carrys out the opening and closing of further control bound, this high pressure valve is compact-sized,
Switch time is short, and stability is high, long lifespan.
103 one end of pilot valve air inlet is connected with the upper chamber 111 of main valve, and the other end is connected with guide's valve chamber 102
Logical, the compressed gas in upper chamber 111 enters guide's valve chamber 102 through pilot valve air inlet 103, then through pilot valve valve port 104
Discharged into pilot valve passage 105, form guide's gas circuit.This guiding high pressure valve, pilot valve air inlet 103 is directly and guide
Valve chamber 102 connects, simple in structure, and the stability of pilot valve 101 is high.
Alternatively, 103 one end of pilot valve air inlet is connected with the upper chamber 111 of main valve, the other end and pilot valve valve port 104
It is connected, the pilot valve 101 is equipped with guide's valve outlet 106, guide's valve outlet 106 and guide's valve chamber 102
It is connected.
This guiding high pressure valve, is made of pilot valve 101 and main valve, and the agent structure of main valve is cylinder body 109, cylinder body
109 be hollow structure, is provided with piston 110 in it, and the material of piston 110 can be plastics, rubber or metal, this
The technical staff in field can select the material of piston 110 according to the actual requirements.Piston 110 separates the space in cylinder body 109
Into upper chamber 111 and lower chambers 112, piston 110 can move up and down in cylinder body 109, so as to change upper chamber 111 and cavity of resorption
The relative size of room 112.110 outer wall of piston is in contact with 109 inner wall of cylinder body, and has good seal.
The through hole 113 being equipped between lower chambers 112 and upper chamber 111, is to make in lower chambers 112 and upper chamber 111
Gas mutually circulate, under the cooperation of pilot valve 101, when main valve air inlet 114 is passed through compressed gas, just can be formed
Pressure differential between chamber 111 and lower chambers 112, so as to further realize the opening and closing of main valve.
Main valve air inlet 114 and main valve gas outlet 115 are connected with lower chambers 112, when piston 110 moves downwardly to most
During bottom, the lower face of piston 110 blocks the path between main valve air inlet 114 and main valve gas outlet 115, at this time, main valve into
Gas port 114 still keeps connecting by lower chambers 112 with through hole 113.When piston 110 moves upwards, main valve air inlet 114 with
Path between main valve gas outlet 115 is opened.
Pilot valve 101 is opened with being equipped with cylindrical bump 124 on 1012 corresponding position of spool on the convex block 124
Equipped with pilot valve valve port 104, the pilot valve valve port 104 is connected with guide's valve chamber 102, the cross section of the convex block 124
Product is less than the cross-sectional area of spool 1012, and the pilot valve 101 is equipped with pilot valve air inlet 103 and pilot valve passage 105, institute
Pilot valve passage 105 is stated with pilot valve valve port 104 to be connected.
On pilot valve 101 pilot valve passage 105, pilot valve passage 105 and convex block are offered in the position close to convex block 124
Pilot valve valve port 104 in 124 is interconnected.Pilot valve air inlet 103 is provided with pilot valve 101, when pilot valve 101 is in
During open mode, spool 1012 is pulled together under the action of electromagnetic force with solenoid tube 1013, pilot valve air inlet 103 and elder generation
Pilot passage 105 is connected, and guide's valve chamber 102 is connected by pilot valve valve port 104 with pilot valve passage 105.
103 one end of pilot valve air inlet is connected with the upper chamber 111 of main valve, and the other end is connected with pilot valve valve port 104
Logical, the compressed gas in upper chamber 111 reaches pilot valve valve port 104 through pilot valve air inlet 103, then through pilot valve valve port
104 enter guide's valve chamber 102, then guide's valve outlet 106 through being connected with guide's valve chamber 102 is discharged, and forms guide
Gas circuit.In this process, compressed gas plays pilot valve 101 and pushes open, and this guiding high pressure valve, guide structure is beaten
ETAD expected time of arrival and departure is short, so as to be conducive to shorten the opening time of whole valve body.
The guiding high pressure valve of this structure, the opening and closing of pilot valve valve port 104 is controlled by pilot valve, further to control
The opening and closing of main valve, pilot valve can be with the opening and closings of the energy hole heavy caliber main valve of very little, and opening/closing time is short, efficient.It is this
Guide structure make 110 stroke of main valve inner carrier unrestricted, thus 115 aperture of main valve gas outlet is big, and flow is big.In addition, i.e.
Make have minute leakage at the sealing ring 122 in main valve, the function of whole high pressure valve will not be influenced, therefore, this pilot-operated type is high
The stability of pressure valve is high, long lifespan.
As preference, the pilot valve air inlet 103 is connected with pilot valve passage 105.The high pressure valve of this structure,
Compressed gas directly can enter guide's valve chamber 102 from pilot valve passage 105, then be discharged through guide's valve outlet 106；Together
When, compressed gas directly can also enter pilot valve air inlet 103 from pilot valve passage 105, hence into pilot valve air inlet
The upper chamber 111 of the connection of mouth 103 so that air pressure drastically raises in upper chamber 111, moves down piston 110, closes main gas
Road.The advantages of this arrangement are as follows guide structure is capable of the opening and closing of efficiently and effectively control bound, so as to greatly shorten master
The opening/closing time of valve, stability is high, long lifespan.
Further, the pilot valve 101 includes coil 1011, spool 1012 and solenoid tube 1013, the spool 1012
Annular on the side wall of solenoid tube 1013 is provided with coil 1011, one end of the spool 1012 is connected with solenoid tube 1013, separately
Guide's valve chamber 102 is stretched into one end, and the spool 1012 is being provided with the first elastomeric element close to one end of pilot valve valve port 104
108, the both ends of first elastomeric element 108 are in contact with spool 1012 and 102 side wall of guide's valve chamber respectively.
In this guiding high pressure valve, solenoid tube 1013 is fixed on one of pilot valve 101 away from guide's valve chamber 102
End, spool 1012 is cylinder, and the side of guide's valve chamber 102, solenoid tube 1013 and spool 1012 is stretched into one end of spool 1012
Annular is provided with coil 1011 on wall, and coil 1011 is connected with power supply.
On pilot valve 101 pilot valve passage 105, pilot valve passage 105 and convex block are offered in the position close to convex block 124
Pilot valve valve port 104 in 124 is interconnected.Pilot valve can be normally open valve, or normally close valve.When pilot valve is normally closed
Valve, pilot valve valve port 104 is closed during no power, and pilot valve valve port 104 is in open mode during energization；Work as pilot valve
For normally open valve, pilot valve valve port 104 is in open mode during no power, and pilot valve valve port 104 is closed during energization.First
Pilot valve air inlet 103, pilot valve air inlet 103 and 102 phase of pilot valve passage 105 or guide's valve chamber are provided with pilot valve
Connection, when pilot valve valve port is in open mode, pilot valve air inlet 103, guide's valve chamber 102 and pilot valve passage
105 threes are connected.
Preferably, the top of the upper chamber 111 is equipped with end cap 117, and the is provided between the end cap 117 and piston 110
Two elastomeric elements 118.Piston 110 moves up, and compresses the second elastomeric element 118, living when air pressure increases in upper chamber 111
Plug 110 moves down, and the restoring force of the second elastomeric element 118 promotes piston 110 to move down, while overcomes piston 110 and cylinder body 109
Between frictional force.Second elastomeric element 118 can be spring, compression spring, or other elastomeric element, those skilled in the art can
According to circumstances to select.
Preferably, the through hole 113 is arranged on piston 110 or cylinder body 109.The both ends of through hole 113 are respectively communicated with epicoele
Room 111 and lower chambers 112, when through hole 113 is arranged on piston 110, through hole 113 is cylinder, and the lower end of through hole 113 can be with
Directly adjacent with main valve air inlet 114, the path that compressed gas via through holes 113 reach upper chamber 111 is short.When through hole 113 is set
When on cylinder body 109, piston 110 keeps integrality, and through hole 113 can be arc, or other shape, those skilled in the art
Member can be with flexible design.
Further, the piston 110 is equipped with least one annular groove 121, the ring on the side wall with cylinder contact
Elastomer circle is placed with shape groove 121.Annular groove 121 can be arranged on piston 110, can also be arranged on cylinder body 109, bullet
Property body circle can be rubber ring or other elastic rings.The advantages of this arrangement are as follows both it had been avoided that gap was covert herein
The channel diameter of guide's air inlet is added, so that it is guaranteed that the stability of switch time；Meanwhile piston 110 has been greatly reduced it
The requirement of fitness between outer wall and lid inner wall, so as to reduce difficulty of processing.
As preference, 121 lateral surface of annular groove is provided with sealing ring 122.Sealing ring 122 is wear-resisting plastics material
Matter, sets sealing ring 122, and annular groove 121- elastomers circle-sealing ring 122 is formed between 110 outer wall of piston and lid inner wall
Structure, reduces the frictional force between piston 110 and cylinder body 109, while after sealing ring 122 or 109 wall of cylinder body are worn still
It can keep good leakproofness.
As preference, material of the piston 110 on the position being in contact with cylinder body 109 is plastics, and/or it is described
Material of the piston 110 on the position that the upper surface 125 with main valve gas outlet 115 is in contact is plastics.Piston 110 is in cylinder body
When pumping in 109, produced between 110 meeting of piston and 109 wall of cylinder body and the upper surface 125 of main valve gas outlet 115
Raw contact and friction.Cylinder body 109 is metal, and the material of piston 110 can also can be partly plastics with all plastics.
Main valve gas outlet 115 can be directly opened on cylinder body 109, can also be independently arranged as a single component；Main valve closes
When closing, the lower face of piston 110 is in contact with the upper surface 125 of main valve gas outlet 115, as piston 110 and cylinder body 109 and master
When the material at the position that the upper surface 125 of valve air gate 115 is in contact is plastics, it can effectively reduce metallic piston 110 and gold
Belong to the collision and friction between cylinder body 109 and the upper surface 125 of main valve gas outlet 115, while without in piston 110 and main valve
Seal is set at the contact surface of 115 upper surface 125 of gas outlet, seal problem of aging is effectively prevent, so as to extend high pressure
The service life of valve.
As preference, the end cap 117 is provided with seal 120 in the side contacted with cylinder body 109.Seal is set
120 purpose is the frictional force reduced between end cap 117 and cylinder body 109, while upper chamber 111 is kept sealing.
It is of the invention to clearly illustrate, list two specific embodiments in present embodiment：
Embodiment 1, as shown in Figure 1, Figure 2 with shown in Fig. 5,
A kind of guiding high pressure valve, including pilot valve 101 and main valve, the main valve include cylinder body 109, piston 110, main valve
Space in cylinder body 109 is divided into upper chamber 111 and lower chambers by air inlet 114 and main valve gas outlet 115, the piston 110
112, through hole 113 is equipped between upper chamber 111 and lower chambers 112, the lower chambers 112 are connected with main valve air inlet 114, institute
State the lower face that main valve gas outlet 115 is arranged on piston 110；
Be equipped with guide's valve chamber 102 and spool 1012 in the pilot valve 101, guide's valve chamber 102 it is interior with valve
1012 corresponding position of core offers pilot valve valve port 104, and the pilot valve 101 is equipped with pilot valve air inlet 103 and first
Pilot passage 105, the pilot valve passage 105 are connected with pilot valve valve port 104；The pilot valve air inlet 103 and main valve
Upper chamber 111 be connected.
The pilot valve air inlet 103 is connected with pilot valve valve port 104, and the pilot valve 101 is arranged equipped with pilot valve
Gas port 106, guide's valve outlet 106 are connected with guide's valve chamber 102.
Embodiment 2, as shown in Figure 3 and Figure 4,
A kind of guiding high pressure valve, including pilot valve 101 and main valve, the main valve include cylinder body 109, piston 110, main valve
Space in cylinder body 109 is divided into upper chamber 111 and lower chambers by air inlet 114 and main valve gas outlet 115, the piston 110
112, through hole 113 is equipped between upper chamber 111 and lower chambers 112, the lower chambers 112 are connected with main valve air inlet 114, institute
State the lower face that main valve gas outlet 115 is arranged on piston 110；
Be equipped with guide's valve chamber 102 and spool 1012 in the pilot valve 101, guide's valve chamber 102 it is interior with valve
1012 corresponding position of core offers pilot valve valve port 104, and the pilot valve 101 is equipped with pilot valve air inlet 103 and first
Pilot passage 105, the pilot valve passage 105 are connected with pilot valve valve port 104；The pilot valve air inlet 103 and main valve
Upper chamber 111 be connected.The pilot valve air inlet 103 is connected with guide's valve chamber 102.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the invention, for this area
For technical staff, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. guiding high pressure valve, it is characterised in that including pilot valve and main valve, guide's valve chamber and valve are equipped with the pilot valve
Core, guide's valve chamber is interior to offer pilot valve valve port with the corresponding position of spool, and the pilot valve is equipped with pilot valve
Air inlet and pilot valve passage, the pilot valve passage are connected with pilot valve valve port；The pilot valve air inlet and main valve
Upper chamber is connected；The main valve includes cylinder body, piston, main valve air inlet and main valve gas outlet, and the piston is by cylinder body
Space is divided into upper chamber and lower chambers, and through hole, the lower chambers and main valve air inlet phase are equipped between upper chamber and lower chambers
Connection, the main valve gas outlet is arranged on the lower face of piston.
2. guiding high pressure valve according to claim 1, it is characterised in that the pilot valve air inlet and guide's valve chamber
It is connected.
3. guiding high pressure valve according to claim 1, it is characterised in that the pilot valve air inlet and pilot valve valve port
It is connected, the pilot valve is equipped with guide's valve outlet, and guide's valve outlet is connected with guide's valve chamber.
4. guiding high pressure valve according to claim 3, it is characterised in that the pilot valve air inlet and pilot valve passage
It is connected.
5. guiding high pressure valve according to claim 1, it is characterised in that the pilot valve includes coil, spool and electricity
Magnetic tube, annular is provided with coil on the side wall of the spool and solenoid tube, and one end of the spool is in contact with solenoid tube, another
Guide's valve chamber is stretched at end, and the spool is being provided with the first elastomeric element, first bullet close to one end of pilot valve valve port
The both ends of property component are in contact with spool and pilot valve chamber sidewall respectively.
6. the guiding high pressure valve according to any one of claim 1-5, it is characterised in that be equipped with the top of the upper chamber
End cap, the second elastomeric element is provided between the end cap and piston.
7. the guiding high pressure valve according to any one of claim 1-5, it is characterised in that the through hole is arranged on piston
Or on cylinder body.
8. the guiding high pressure valve according to any one of claim 1-5, it is characterised in that the piston connects with cylinder
Tactile side wall is equipped with least one annular groove, and elastomer circle is placed with the annular groove, and the ring slot outside face is set
There is sealing ring.
9. the guiding high pressure valve according to any one of claim 1-5, it is characterised in that the piston with cylinder body phase
Material on the position of contact is plastics, and/or on the position that is in contact in the upper surface with main valve gas outlet of the piston
Material is plastics.
10. guiding high pressure valve according to claim 6, it is characterised in that the end cap is in the side contacted with cylinder body
It is provided with seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980526.5A CN105422872B (en) | 2015-12-23 | 2015-12-23 | Guiding high pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980526.5A CN105422872B (en) | 2015-12-23 | 2015-12-23 | Guiding high pressure valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422872A CN105422872A (en) | 2016-03-23 |
| CN105422872B true CN105422872B (en) | 2018-05-04 |
Family
ID=55501308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510980526.5A Active CN105422872B (en) | 2015-12-23 | 2015-12-23 | Guiding high pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422872B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853974A (en) * | 1957-10-09 | 1960-11-16 | British Oxygen Co Ltd | Servo valve for pressure fluids |
| CN2295885Y (en) * | 1997-04-03 | 1998-10-28 | 四川杰特清洗机器厂 | Pressure reducing guided overflow valve |
| CN2806924Y (en) * | 2005-06-20 | 2006-08-16 | 浙江大学 | Poppet valve pilot type ultra-high pneumatic proportional pressure-reducing valve |
| CN204300446U (en) * | 2014-11-05 | 2015-04-29 | 北京航天动力研究所 | A kind of high-voltage modulation type Pilot operated safety valve |
| CN204420230U (en) * | 2014-12-17 | 2015-06-24 | 上虞市通利流体控制有限公司 | A kind of high-pressure solenoid valve of docking with pressure reducing regulator |
| CN205226390U (en) * | 2015-12-23 | 2016-05-11 | 古棠测控科技（上海）有限公司 | Guide's formula high pressure valve |
-
2015
- 2015-12-23 CN CN201510980526.5A patent/CN105422872B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853974A (en) * | 1957-10-09 | 1960-11-16 | British Oxygen Co Ltd | Servo valve for pressure fluids |
| CN2295885Y (en) * | 1997-04-03 | 1998-10-28 | 四川杰特清洗机器厂 | Pressure reducing guided overflow valve |
| CN2806924Y (en) * | 2005-06-20 | 2006-08-16 | 浙江大学 | Poppet valve pilot type ultra-high pneumatic proportional pressure-reducing valve |
| CN204300446U (en) * | 2014-11-05 | 2015-04-29 | 北京航天动力研究所 | A kind of high-voltage modulation type Pilot operated safety valve |
| CN204420230U (en) * | 2014-12-17 | 2015-06-24 | 上虞市通利流体控制有限公司 | A kind of high-pressure solenoid valve of docking with pressure reducing regulator |
| CN205226390U (en) * | 2015-12-23 | 2016-05-11 | 古棠测控科技（上海）有限公司 | Guide's formula high pressure valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422872A (en) | 2016-03-23 |
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