CN205806573U - It is installed on the control air valve of pneumatic actuator - Google Patents

It is installed on the control air valve of pneumatic actuator Download PDF

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Publication number
CN205806573U
CN205806573U CN201620667978.8U CN201620667978U CN205806573U CN 205806573 U CN205806573 U CN 205806573U CN 201620667978 U CN201620667978 U CN 201620667978U CN 205806573 U CN205806573 U CN 205806573U
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CN
China
Prior art keywords
unicom
channel
switching
valve
passage
Prior art date
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Withdrawn - After Issue
Application number
CN201620667978.8U
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Chinese (zh)
Inventor
陈聪
陈久恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG THEOBORN AUTO-CONTROL VALVES Co Ltd
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ZHEJIANG THEOBORN AUTO-CONTROL VALVES Co Ltd
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Application filed by ZHEJIANG THEOBORN AUTO-CONTROL VALVES Co Ltd filed Critical ZHEJIANG THEOBORN AUTO-CONTROL VALVES Co Ltd
Priority to CN201620667978.8U priority Critical patent/CN205806573U/en
Application granted granted Critical
Publication of CN205806573U publication Critical patent/CN205806573U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model relates to a kind of control air valve being installed on pneumatic actuator, including valve body, be provided with in valve body switching chamber and respectively with switching chamber UNICOM first passage, second channel and third channel, first passage one end is provided with and the first switching port switching chamber UNICOM, the other end is source of the gas installing port, second channel one end is provided with and the UNICOM's mouth switching chamber UNICOM, the other end is without spring cavity installing port, third channel one end is provided with and the second switching port switching chamber UNICOM, the other end is spring cavity installing port, switching intracavity is provided with the main valve plug moved according to air pressure, it is provided with the exhaust passage of second channel with extraneous UNICOM in valve body, the one-way flow assembly only allowing gas outwardly to flow it is provided with from second channel in this exhaust passage.Using such scheme, this utility model provides a kind of control air valve being installed on pneumatic actuator avoiding spring cavity to cause intraware to be corroded from ambient inlet air.

Description

It is installed on the control air valve of pneumatic actuator
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of air valve being installed on pneumatic actuator.
Background technology
Spring return type pneumatic actuator, piston side is equipped with spring, and cylinder is divided into without spring cavity and has spring by piston Chamber, has spring cavity to be directly connected with air, is connected with control valve without spring cavity, and cylinder is controlled by source of the gas and spring reset realizes It is performed the keying of mechanism.
Spring return type pneumatic actuator, by being used in important station, as die power-off time, executor can be fast The reset of speed, it is therefore desirable to executor can good stability, the features such as reset speed is fast.
During air inlet without spring cavity, piston compression spring, there is spring cavity volume to reduce, gas (atmospheric air) is got rid of;Nothing During spring cavity aerofluxus, compression spring resets, and has spring cavity volume to increase, and air enters, to reach to balance with atmospheric pressure, so, The spring cavity that has of spring return type pneumatic actuator is to be constantly in the state that air intake-exhaust alternates in its work.Therefore, bullet Spring homing position type pneumatic actuator is under specific operating mode, as containing work such as corrosive gas environment, dust atmosphere, salt mist environments Time, although having the cavity in spring cavity, spring through preservative treatment, but still easily it is corroded, especially after spring corrosion failure, directly Connect and affect the keying being performed mechanism.
Therefore a kind of valve of design, its major function: when having spring cavity aerofluxus, it is possible to row is to air automatically, has spring cavity to enter During gas, it is impossible to enough have air to enter, thus can effectively completely cut off contacting of air and spring etc., reduce the generation of corrosion.
Summary of the invention
The deficiency existed for prior art, the purpose of this utility model is to provide one to avoid spring cavity from the external world Air inlet and cause the control air valve being installed on pneumatic actuator that intraware is corroded.
For achieving the above object, this utility model provides following technical scheme: include valve body, it is characterised in that: described Valve body in be provided with switching chamber and respectively with the switching first passage of chamber UNICOM, second channel and third channel, described the One passage end is provided with and the first switching port switching chamber UNICOM, and the other end extends to valve outer wall and is connected as with source of the gas Source of the gas installing port, described second channel one end is provided with and switches UNICOM's mouth of chamber UNICOM, and the other end extends to outside valve body Wall as the installing port without spring cavity being connected without spring cavity with pneumatic actuator, described third channel one end be provided with Second switching port of switching chamber UNICOM, the other end extend to valve outer wall as with pneumatic actuator have what spring cavity was connected to have Spring cavity installing port, described switching intracavity is provided with the main valve plug moved according to air pressure, described first passage air inlet Time, main valve plug is extruded to the second switching port by air pressure, and main valve plug and the second switching port support joins and seals, and first passage and second leads to Road constitutes UNICOM;When described first passage is exitted, main valve plug is extruded to the first switching port by air pressure, main valve plug and the first switching Mouth supports joins and seals, and second channel constitutes UNICOM with third channel, is provided with second channel and external world's connection in described valve body Logical exhaust passage, is provided with the one-way flow assembly only allowing gas outwardly to flow from second channel in this exhaust passage.
By using technique scheme, when needing air inlet without spring cavity, air-source inflow, gas enters from first passage, Extruding main valve plug while entrance to move, main valve plug moves to the second switching port from the first switching port, makes the second switching port seal, I.e. first passage constitutes UNICOM with second channel, and gas enters without in spring cavity, has spring cavity to be squeezed, in having spring cavity Air discharges, and this partial air is discharged from exhaust passage, one-way flow assembly self-closed exhaust passage after discharge;Work as nothing When spring cavity needs aerofluxus, source of the gas exit, have the spring reset of spring cavity i.e. to have spring cavity volume to increase, main valve plug by air pressure to First switching port extruding, makes the first switching port seal, i.e. second channel constitutes UNICOM with third channel, without the gas in spring cavity Reach there is spring cavity through second channel and third channel, reach without spring cavity aerofluxus and the purpose that has spring cavity air inlet, so Structure, on the one hand, when there being spring cavity air inlet, Appropriate application, without the gas of spring cavity, is compared source of the gas and is realized quick air inlet, gas Pressure quickly regulation is to poised state, secondly, has spring cavity not have outside air and enters, it is to avoid at corrosive gas environment, powder During the work such as dirt environment, salt mist environment, there are the cavity in spring cavity and spring to be corroded, increase the service life and working stability Property, then, owing to outside air will not enter spring cavity, matched air filter, air relief valve and oil for purifying Day with fog then without installing, makes structure be simplified, and then, owing to the gas of source of the gas is through special handling, has preferably Lubrication and protective effect, without spring cavity had spring cavity again with, to the assembly having in spring cavity as one maintenance, enter One step increase has the dependability of spring cavity, and finally, control air valve can be automatically controlled and regulate by the air-flow flowed through, and reaches The automatically controlled function that could realize before, meets the trend nowadays without electrification operation.
This utility model is further arranged to: described valve body is made up of pedestal and cover plate, and described switching chamber is positioned at seat Body side surface is provided with spool installing port, and described first passage is arranged at cover plate, and described cover plate is detachably secured to pedestal And spool installing port is sealed.
By using technique scheme, valve body split is arranged, on the one hand, be easily installed after dismounting or change main valve Core, on the other hand, owing to gas source interface exists varied, changes cover plate and gets final product adaptive all joints, and the scope of application is wider.
This utility model is further arranged to: described UNICOM's choma is arranged around the second switching port, described main valve plug bag Include the sealing suitable with the second switching port shape and around sealing and and can be to the deformations of UNICOM's mouth bending.
By using technique scheme, deformations increases the sectional area of main valve plug, thus increases the moving stability, with this Meanwhile, air-source inflow seasonal epidemic pathogens pressure compressional deformation portion, make deformations bending constitute the UNICOM of first passage and second channel, according to gas Pressure is automatically adjusted deformation quantity.
This utility model is further arranged to: described one-way flow assembly includes the first auxiliary valve core, and described aerofluxus is led to The first spool chamber moved back and forth for the first auxiliary valve core it is provided with and by the first spool chamber and the first of second channel UNICOM in road Subchannel, the first described spool chamber is provided with sealing surface and by first around UNICOM's mouth of the first spool chamber and the first subchannel The first back-moving spring that auxiliary valve core resets to this sealing surface, described sealing surface is along with gradually becoming near the first subchannel diameter Little, the first described auxiliary valve core is provided with the round platform portion suitable with sealing surface shape.
By using technique scheme, the first back-moving spring the first auxiliary valve core is resetted to this sealing surface, it is possible to adopt With rigid, constitute with sealing surface laminating and seal.First auxiliary valve core may be used without elastic material, consists of deformation and seals, And the sealing that the sealing surface being inclined to set is when further increasing cooperation, round platform portion in moving process automatically and sealing surface Match.
This utility model is further arranged to: circumferentially arranged on the end face that the first described auxiliary valve core and sealing surface offset There is sealing ring and the sealing ring mounting groove of sealing ring is installed.
By using technique scheme, set up sealing ring, increase by the when the first auxiliary valve core is rigid further Sealing between one auxiliary valve core and sealing surface.
This utility model is further arranged to: described one-way flow assembly includes the second auxiliary valve core, and described aerofluxus is led to The second spool chamber moved back and forth for the second auxiliary valve core it is provided with and by the second spool chamber and the second of second channel UNICOM in road Subchannel, the second described auxiliary valve core is spherical in shape, by the second auxiliary valve core to the second spool chamber and the in the second described spool chamber UNICOM's mouth of two subchannels supports the second back-moving spring joined and seal.
By use technique scheme, the second back-moving spring by the second auxiliary valve core to the second spool chamber and the second subchannel UNICOM mouth when resetting, due to spherical characteristic, the second auxiliary valve core is the most suitable with UNICOM's mouth of various diameters, single structure The scope of application wider, also serve as the another embodiment of one-way flow assembly.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one;
Fig. 2 is the use state diagram one of this utility model embodiment one;
Fig. 3 is the use state diagram two of this utility model embodiment one;
Fig. 4 is the structural representation of this utility model embodiment two.
Detailed description of the invention
As it is shown in figure 1, the utility model discloses a kind of control air valve being installed on pneumatic actuator, including valve body 1, valve body Be provided with in 1 switching chamber 14 and respectively with the switching first passage 11 of chamber 14 UNICOM, second channel 12 and third channel 13, first Passage 11 one end is provided with and switches the first switching port 111 of chamber 14 UNICOM, the other end extend to valve body 1 outer wall and as with gas The source of the gas installing port 112 of source linking, second channel 12 one end is provided with and the UNICOM's mouth 121 switching chamber 14 UNICOM, and the other end prolongs Extend valve body 1 outer wall and as the installing port without spring cavity 122 being connected without spring cavity with pneumatic actuator, third channel 13 1 End is provided with and switches the second switching port 131 of chamber 14 UNICOM, the other end extend to valve body 1 outer wall as with pneumatic actuator Having what spring cavity was connected to have spring cavity installing port 132, switching is provided with, in chamber 14, the main valve plug 2 moved according to air pressure, the During one passage 11 air inlet, main valve plug 2 is extruded to the second switching port 131 by air pressure, and main valve plug 2 and the second switching port 131 support and join also Sealing, first passage 11 and second channel 12 constitute UNICOM;When first passage 11 is exitted, main valve plug 2 is switched to first by air pressure Mouth 111 extruding, main valve plug 2 and the first switching port 111 support and join and seals, and second channel 12 and third channel 13 constitute UNICOM, valve It is provided with the exhaust passage 17 of second channel 12 with extraneous UNICOM in body 1, is provided with in this exhaust passage 17 and only allows gas The one-way flow assembly outwardly flowed from second channel 12, such structure, on the one hand when there being spring cavity air inlet, rationally profit With the gas without spring cavity, comparing source of the gas and realize quick air inlet, air pressure quickly regulates to poised state, secondly, has spring cavity not Have outside air to enter, it is to avoid when work such as corrosive gas environment, dust atmosphere, salt mist environments, have in spring cavity Cavity and spring are corroded, and increase the service life and job stability, then, owing to outside air will not enter spring cavity, Matched air filter, air relief valve and oil sprayer for purifying, then without installing, makes structure be simplified, then, by In the gas of source of the gas through special handling, there is preferably lubrication and protective effect, had spring cavity again without spring cavity Secondary utilization, maintains as one the assembly having in spring cavity, increases further and has the dependability of spring cavity, finally, and control Air valve can be automatically controlled and regulate by the air-flow that flows through, the automatically controlled function that could realize before having reached, meet nowadays without The trend of electrification operation.
Valve body 1 is made up of pedestal 15 and cover plate 16, and switching chamber 14 is positioned at pedestal 15 side and is provided with spool installing port, and first Passage 11 is arranged at cover plate 16, and cover plate 16 is detachably secured to pedestal 15 and is sealed by spool installing port, valve body 1 split is set Put, on the one hand, after dismounting, be easily installed or change main valve plug 2, on the other hand, owing to gas source interface exists varied, change Cover plate 16 gets final product adaptive all joints, and the scope of application is wider.
UNICOM's mouth 121 is arranged around the second switching port 131, and main valve plug 2 includes suitable with the second switching port 131 shape Sealing 21 and around sealing 21 and and can to the deformations 22 of UNICOM's mouth 121 bending, deformations 22 increase main valve plug 2 cut Area, thus increase the moving stability, meanwhile, air-source inflow seasonal epidemic pathogens pressure compressional deformation portion 22, make deformations 22 bending structure Become the UNICOM of first passage 11 and second channel 12, be automatically adjusted deformation quantity according to air pressure.
One-way flow assembly includes the first auxiliary valve core 3, is provided with and supplies the first auxiliary valve core 3 to move back and forth in exhaust passage 17 First spool chamber 171 and by the first subchannel 172 of the first spool chamber 171 with second channel 12 UNICOM, the first spool chamber 171 encloses UNICOM's mouth 121 around the first spool chamber 171 and the first subchannel 172 is provided with sealing surface 1711 and by the first auxiliary valve core 3 to this The first back-moving spring 173 that sealing surface 1711 resets, sealing surface 1711 tapers into along with close first subchannel 172 diameter, First auxiliary valve core 3 is provided with the round platform portion 31 suitable with sealing surface 1711 shape, by the first back-moving spring 173 by the first secondary valve Core 3 resets to this sealing surface 1711, it is possible to use rigid, constitutes with sealing surface 1711 laminating and seals.First auxiliary valve core 3 is also Elastic material can be used, constituted by deformation and seal, and when the sealing surface 1711 being inclined to set further increases cooperation Sealing, round platform portion 31 matches with sealing surface 1711 in moving process automatically.
Circumferentially arranged on the end face that first auxiliary valve core 3 and sealing surface 1711 offset have sealing ring 32 and install sealing ring 32 Sealing ring mounting groove 33, set up sealing ring 32, increase by the first auxiliary valve core 3 further when the first auxiliary valve core 3 is for rigid And the sealing between sealing surface 1711.
As depicted in figs. 1 and 2, the three linked piece 5 that the gas of source of the gas 4 is made up of air filter, air relief valve and oil sprayer Special handling, is controlled source of the gas opening and closing by electromagnetic valve 6, and when needing air inlet without spring cavity 7, air-source inflow, gas is from first passage 11 Entering, extrude main valve plug 2 and move while entrance, main valve plug 2 moves to the second switching port 131 from the first switching port 111, makes the Two switching ports 131 seal, i.e. first passage 11 and second channel 12 constitutes UNICOM, and gas enters without in spring cavity 7, and piston 8 squeezes Being pressed with spring cavity, have the air in spring cavity 9 to discharge, this partial air is discharged from exhaust passage 17, way flow after discharge Logical assembly self-closed exhaust passage 17;As shown in figures 1 and 3, when needing aerofluxus without spring cavity 7, source of the gas is exitted, and has spring The spring reset in chamber 9 i.e. has spring cavity 9 volume to increase, piston 8 extrude without spring cavity 7, main valve plug 2 by air pressure to the first switching port 111 extruding, make the first switching port 111 seal, i.e. second channel 12 and third channel 13 constitutes UNICOM, without the gas in spring cavity 7 Body reaches there is spring cavity 9 through second channel 12 and third channel 13, reaches without spring cavity 7 aerofluxus and has spring cavity 9 air inlet Purpose.
Additionally, source of the gas installing port 112, can change according to the actual requirements without spring cavity installing port 122 and spring cavity installing port 132 In a disguised form to valve body towards, be not limited in embodiment is this.
Outside it, as shown in Figure 4, disclose the another embodiment of the control air valve being installed on pneumatic actuator, remove single Structure outside circulation assembly is the most identical, and the one-way flow assembly of this kind of structure includes the second auxiliary valve core 34, in exhaust passage 17 It is provided with the second spool chamber 174 moved back and forth for the second auxiliary valve core 34 and by the second spool chamber 174 and second channel UNICOM Second subchannel 175, the second auxiliary valve core 34 is spherical in shape, by the second auxiliary valve core 34 to the second spool chamber 174 in the second spool chamber 174 Supporting, with UNICOM's mouth of the second subchannel 175, the second back-moving spring 176 joined and seal, the second back-moving spring 176 is by the second secondary valve Core 34 is when UNICOM's mouth of the second spool chamber 174 and the second subchannel 175 resets, due to spherical characteristic, the second auxiliary valve core 34 The most suitable with UNICOM's mouth of various diameters, the scope of application of single structure is wider, also serves as one-way flow assembly another Plant embodiment.

Claims (6)

1. it is installed on a control air valve for pneumatic actuator, including valve body, it is characterised in that: it is provided with in described valve body and cuts Change chamber and respectively with the switching first passage of chamber UNICOM, second channel and third channel, described first passage one end is provided with With the first switching port of switching chamber UNICOM, the other end extends to valve outer wall and as the source of the gas installing port being connected with source of the gas, institute The second channel one end stated is provided with and the UNICOM's mouth switching chamber UNICOM, and the other end extends to valve outer wall and holds as with pneumatic The installing port without spring cavity without spring cavity linking of row device, described third channel one end is provided with and switches the second of chamber UNICOM Switching port, the other end extend to valve outer wall as with pneumatic actuator have what spring cavity was connected to have spring cavity installing port, institute The switching intracavity stated is provided with the main valve plug moved according to air pressure, and during described first passage air inlet, main valve plug is by air pressure To the second switching port extruding, main valve plug and the second switching port support joins and seals, and first passage constitutes UNICOM with second channel;Described First passage venting time, main valve plug is extruded to the first switching port by air pressure, main valve plug and the first switching port to joining and sealing, the Two passages constitute UNICOM with third channel, are provided with the exhaust passage of second channel with extraneous UNICOM in described valve body, should The one-way flow assembly only allowing gas outwardly to flow it is provided with from second channel in exhaust passage.
The control air valve being installed on pneumatic actuator the most according to claim 1, it is characterised in that: described valve body is by pedestal And cover plate composition, described switching chamber is positioned at pedestal side and is provided with spool installing port, and described first passage is arranged at cover plate, Described cover plate is detachably secured to pedestal and is sealed by spool installing port.
The control air valve being installed on pneumatic actuator the most according to claim 1, it is characterised in that: described UNICOM's choma around Second switching port is arranged, and described main valve plug includes the sealing suitable with the second switching port shape and around sealing and also Can be to the deformations of UNICOM's mouth bending.
4. according to the control air valve being installed on pneumatic actuator described in claim 1 or 2 or 3, it is characterised in that: described is unidirectional Circulation assembly includes the first auxiliary valve core, is provided with the first spool chamber moved back and forth for the first auxiliary valve core in described exhaust passage And the first subchannel by the first spool chamber Yu second channel UNICOM, the first described spool chamber is around the first spool chamber and first UNICOM's mouth of subchannel is provided with sealing surface and the first back-moving spring resetted by the first auxiliary valve core to this sealing surface, and described is close Front cover is along with tapering near the first subchannel diameter, and the first described auxiliary valve core is provided with suitable with sealing surface shape Round platform portion.
The control air valve being installed on pneumatic actuator the most according to claim 4, it is characterised in that: the first described auxiliary valve core The circumferentially arranged sealing ring mounting groove having sealing ring and installing sealing ring on the end face offseted with sealing surface.
6. according to the control air valve being installed on pneumatic actuator described in claim 1 or 2 or 3, it is characterised in that: described is unidirectional Circulation assembly includes the second auxiliary valve core, is provided with the second spool chamber moved back and forth for the second auxiliary valve core in described exhaust passage And the second subchannel by the second spool chamber Yu second channel UNICOM, the second described auxiliary valve core is spherical in shape, the second described valve In core cavity, the second auxiliary valve core is supported to UNICOM's mouth of the second spool chamber and the second subchannel the second back-moving spring joined and seal.
CN201620667978.8U 2016-06-24 2016-06-24 It is installed on the control air valve of pneumatic actuator Withdrawn - After Issue CN205806573U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620667978.8U CN205806573U (en) 2016-06-24 2016-06-24 It is installed on the control air valve of pneumatic actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620667978.8U CN205806573U (en) 2016-06-24 2016-06-24 It is installed on the control air valve of pneumatic actuator

Publications (1)

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CN205806573U true CN205806573U (en) 2016-12-14

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CN201620667978.8U Withdrawn - After Issue CN205806573U (en) 2016-06-24 2016-06-24 It is installed on the control air valve of pneumatic actuator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889573A (en) * 2016-06-24 2016-08-24 浙江博恩自控阀门有限公司 Air control valve mounted in pneumatic actuator
CN115263845A (en) * 2022-07-25 2022-11-01 江西理工大学 Pneumatic flexible valve based on valve rod blockage and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889573A (en) * 2016-06-24 2016-08-24 浙江博恩自控阀门有限公司 Air control valve mounted in pneumatic actuator
CN105889573B (en) * 2016-06-24 2018-04-17 浙江博恩自控阀门有限公司 It is installed on the air control valve of pneumatic actuator
CN115263845A (en) * 2022-07-25 2022-11-01 江西理工大学 Pneumatic flexible valve based on valve rod blockage and application thereof

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20161214

Effective date of abandoning: 20180417

AV01 Patent right actively abandoned