CN205423842U - Pneumatic film governing valve that power output is adjustable - Google Patents
Pneumatic film governing valve that power output is adjustable Download PDFInfo
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- CN205423842U CN205423842U CN201620199585.9U CN201620199585U CN205423842U CN 205423842 U CN205423842 U CN 205423842U CN 201620199585 U CN201620199585 U CN 201620199585U CN 205423842 U CN205423842 U CN 205423842U
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- valve
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- spring
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Abstract
The utility model relates to a valve. A pneumatic film governing valve that power output is adjustable, include the valve body be equipped with the runner, the valve rod, set up in the runner be equipped with the orifice the disk seat, connect in valve rod case and drive valve rod axial displacement and drive the movable valve element switching the actuating mechanism of orifice, what the case was opened to drive valve rod that actuating mechanism includes the air chamber, constitute air chamber wall opens closing the valve spring, supporting and close the valve spring and change the actuating lever of the deflection that closes the valve spring in the extrusion piece that closes valve spring one end and the extrusion of drive extrusion piece of valve membrane piece, drive valve rod shut -off valve core. The utility model provides a can or reduce the pneumatic film governing valve that power output is adjustable of pneumatic film actuating mechanism's power output with the online increase of the mode of not changing valve or actuating mechanism, solve need to be changed valve type or change the problem that valve actuating mechanism realized the change of power output of current pneumatic film governing valve.
Description
Technical field
The utility model relates to valve, particularly relates to a kind of adjustable pneumatic diaphragm control valve of power output.
Background technology
The kind of valve has a lot, China Patent No. be 2014207986021, grant number is CN204592322U, i.e. discloses a kind of existing dedusting butterfly valve in the patent document of entitled " a kind of copper blast furnace off-gas dedusting butterfly valve ".In control valve product industry, pneumatic diaphragm control valve accounts for control valve more than 2/3, the pneumatic diaphragn actuating mechanism of pneumatic diaphragm control valve, once model specification is certain, its power output is the most fixed, its power output of the pneumatic diaphragn actuating mechanism of whole world pneumatic diaphragm control valve is set, just cannot change after dispatching from the factory, thus produce a problem: change pressure medium to be increased when using pressure medium, actuator stem force will be occurred inadequate, causing valve to close even cannot action, way was changed valve type exactly or changed valve actuator in the past, this brings trouble greatly to valve manufacturer or user., reach to adapt to the purpose of user's pressure parameter change.
Utility model content
The utility model provides the adjustable pneumatic diaphragm control valve of power output of a kind of power output that can increase online in the way of being changed without valve or executing agency or reduce pneumatic diaphragn actuating mechanism, and solving existing pneumatic diaphragm control valve needs change valve type or change valve actuator to the problem realizing the change of power output.
More than technical problem is that and solved by following technical proposal: a kind of power output adjustable pneumatic diaphragm control valve, it is provided with runner including valve body, valve rod, it is arranged at the valve seat being provided with throttle orifice of runner, it is connected to valve rod spool and drives valve rod to move axially and drive the executing agency of throttle orifice described in spool opening and closing, described executing agency includes air chamber, the valve rod that drives constituting air chamber wall opens the valve opening diaphragm of spool, valve rod is driven to close the conjunction valve spring of spool, it is supported in and closes the crushing block of valve spring one end and drive crushing block extruding to close valve spring and change the drive rod of the deflection closing valve spring.During use, to air chamber input pressure gas, pressed gas drives valve opening diaphragm to move, and valve opening diaphragm drives valve rod to drive spool to remove throttle orifice and realize opening valve, and during valve opening, valve opening spring is squeezed；Realize closing valve when driving spool to be again brought together in throttle orifice at the effect lower valve rod closing valve spring after the pressure laying down pressed gas.When needing the power output changing valve i.e. to close in the power of valve, the position being changed crushing block by drive rod makes the initial deformation amount closing valve spring change, thus realizes changing power output.
As preferably, described drive rod wears and is threadedly connected to described crushing block.By rotation of drive rod during use, drive rod drives crushing block to move axially the change realizing power output along pressure ram.When adjusting output, operation is convenient.
As preferably, described drive rod is coaxially connected in described valve rod, and described valve opening diaphragm and drive block are connected to the two ends of described drive rod.Compact conformation.
As preferably, described executing agency also includes the holding rod being connected to drive rod, motor and powershift mechanism, described motor includes motor casing and motor shaft, described motor casing is fixed together with described holding rod, described drive rod is connected to one end of described motor shaft, described powershift mechanism includes the switch starting described motor, drive the pressing lever of described switch, the insertion spring that the latch being slidably connected in holding rod linked together with holding rod by motor shaft and driving latch are inserted in motor shaft, described latch is between described switch and pressing lever, described latch is provided with dodges hole, described hole of dodging is provided with the driving inclined-plane departing from motor shaft to drive described latch with the cooperation of described pressing lever.The technical program can either go to drive drive rod to rotate by manual rotation's holding rod, also be able to drive drive rod to rotate by motor.When driving drive rod to rotate by motor, pressing pressing lever, while pressing lever translates towards switch, pressing drives inclined-plane that latch translation is departed from motor shaft, pressing lever move to through dodge hole be pressed into switch or be switched on and off sense time (then sensing if inductive switch) time, from motor shaft, abjection makes holding rod disconnect with motor shaft to latch and motor is started completely, and electric motor starting rear drive drive rod rotates and realizes being threadedly coupled in screwed hole thread segment.When extracting pressing lever, switch off and motor is stopped, owing to pressing lever loses the Intercepting effects to latch, under the effect inserting spring, latch is inserted in motor shaft again, motor shaft can be driven to rotate when now rotating holding rod, motor shaft drives drive rod to rotate, namely can carry out manual rotation.
As preferably, described holding rod is arranged with handle sleeve, the elastic adjusting mechanism of the elastic force being provided with between described holding rod and handle sleeve between regulation handle sleeve and holding rod, described elastic adjusting mechanism includes the base tube being set in outside holding rod and being located in handle sleeve and is looped around the holding sheet outside described base tube, described holding sheet is constituted along the circumferentially distributed fricting strip of base tube by some pieces, described fricting strip is provided with some slide bars radially extended along base tube, described sliding bar is arranged in described base tube, the inner of described slide bar is provided with shift-in outside driving slide bar and drives fricting strip to be connected to spring together with handle sleeve, described elastic adjusting mechanism is additionally provided with the pretightning force adjustment structure of the pretightning force regulating described spring.During use, rotation of drive rod is gone to drive spool to translate by gripping handle sleeve.Holding rod in the technical program has elasticity, thus comfortableness when improving use, the elastic effect in the technical program can also change, to adapt to different needs.The concrete regulation process of holding rod elasticity is, by pretightning force adjustment structure driving spring moving radially along base tube, so that fricting strip changes with the normal pressure of handle sleeve, thus realizing the change of pretightning force so that the size of the power that handle sleeve rocks relative to holding rod changes the elastic effect reaching different.
As preferably, described pretightning force adjustment structure includes the conical head of two tubular structures being supported on outside holding rod by base tube, drive conical head move axially and can make conical head stop at setting position driving structure and some push rods, said two conical head is slidably connected in the two ends of described base tube in the way of miner diameter end is arranged oppositely, the two ends of described push rod are shelved on the conical surface of said two conical head, the all of described slide bar of same fricting strip passes through described spring supporting on same described push rod, the described slide bar of each piece of fricting strip is respectively supported by a described push rod.During regulation, realize push rod moving radially thus realize the push rod change along base tube radial position along base tube by the position of axially varying conical head, thus realize the change of initial tension of spring.Convenience during regulation is good.
As preferably, described driving structure includes the jacking block in two two ends being threaded in described base tube, and said two conical head is between said two jacking block.Driving conical head to realize regulation by rotating jacking block, regulation puts in place, is automatically positioned, and convenience during use is more preferable.
As preferably, described motor is provided with binding post, described binding post includes insulator and is arranged at the wiring Copper Foil of insulator, described wiring Copper Foil is electrically connected with the coil of described motor, described wiring Copper Foil is provided with the wiring hole penetrated in described insulator, described wiring hole slidably connects sleeve, described sleeve includes the conductive segment together with being connected to of the insulating segment along sleeve axial distribution with wiring Copper Foil, be provided with in described insulator air cavity that the heat produced by wiring Copper Foil carries out heating and by the gas expansion in air cavity be driven for the overload response cylinder driving conductive segment to stagger with described wiring Copper Foil.During to motor wiring, power line is inserted and sleeve realizes with the electrical connection of sleeve, be that conductive segment links together with wiring Copper Foil and conducts during normal condition.Circuit can produce temperature rise when the load, gas in air cavity can produce expansion, overload response cylinder generation action during the gas expansion of air cavity and drive sleeve to slide in wiring hole, response air cylinder driven of then transshipping when temperature rise to design temperature slides into conductive segment to sleeve and staggers with wiring Copper Foil, thus realizes power-off；When after Failure elimination, temperature can decline, temperature declines the contraction of gas in then air cavity, the result shunk is that when temperature returns to normal value, then conductive segment links together with wiring Copper Foil again thus realizes automatically reseting so that sleeve slides towards the direction that same temperature rise phase is anti-in wiring hole.
As preferably, described overload response cylinder includes overload response cylinder block and overload response cylinder piston, described overload response cylinder block is divided into closing chamber and open cavity by described overload response cylinder piston, described closing chamber connects with described air cavity, and described overload response cylinder piston is linked together with described sleeve by connecting rod.Simple in construction.Easy to make.
As preferably, the axis of described overload response cylinder piston is parallel with the axis of described adapter sleeve.Reliability when overload response air cylinder driven sleeve moves can be improved and improve structural compactness further.
As preferably, described wiring hole is vertically extending, and described wiring Copper Foil is positioned at the lower end of described wiring hole, and described insulating segment is positioned at the lower section of described conductive segment, and described insulating segment is sealed connected together with described wiring hole, is filled with conduction liquid in described wiring hole.It can be avoided that repeatedly action produces sparking when producing electrical contact bad phenomenon after producing abrasion and prevent action.
As preferably, described insulating segment is provided with the exterior seal ring being sealed connected together with wiring hole by insulating segment and is used for the inner seal ring being sealed connected together with power line by insulating segment.Can both ensure that sleeve is reliably sealed connected together with wiring Copper Foil, and resistance when can reduce mobile.
As preferably, the inner peripheral surface of described insulating segment is provided with support ball.Resistance when can reduce mobile further, to improve sensitivity during dynamic overload response.
As preferably, the inner peripheral surface of described conductive segment is provided with the inner support shell fragment that radially-inwardly arches upward along conductive segment, outer peripheral face is provided with the outer support shell fragment radially outward arched upward along conductive segment.Can either improve reliability during relay contacts, resistance when can reduce mobile again is to improve response sensitivity.
The utility model has an advantage that the power output that can increase or reduce pneumatic diaphragn actuating mechanism in the way of being changed without valve or executing agency online.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment one.
Fig. 2 is the schematic diagram of the executing agency in the utility model embodiment two.
Fig. 3 is the cross sectional representation of the holding rod in Fig. 2.
Fig. 4 is the axial cross-sectional schematic of the holding rod in Fig. 2.
Fig. 5 is the close-up schematic view at the A of Fig. 2.
Fig. 6 is the enlarged diagram of binding post.
Fig. 7 is binding post schematic diagram when linking together with power line.
nullIn figure: valve body 1、Runner 11、Valve seat 12、Throttle orifice 13、Powershift mechanism 2、Switch 21、Pressing lever 22、Latch 23、Dodge hole 231、Drive inclined-plane 232、Insert spring 24、Locking hole 25、Binding post 3、Wiring Copper Foil 31、Wiring hole 32、Air-vent 321、Insulator 33、Sleeve 34、Insulating segment 341、Conductive segment 342、Exterior seal ring 343、Inner seal ring 344、Support ball 345、Inner support shell fragment 346、Outer support shell fragment 347、Air cavity 35、Overload response cylinder 36、Overload response cylinder block 361、Close chamber 3611、Open cavity 3612、Pore 3613、Overload response cylinder piston 362、Connecting rod 363、Air flue 37、Power line 38、Executing agency 4、Drive rod 41、Air chamber 42、Close valve spring 43、Crushing block 44、Valve opening diaphragm 45、Motor 5、Motor casing 51、Motor shaft 52、Reductor 53、Holding rod 6、Handle sleeve 61、Spool 7、Elastic adjusting mechanism 8、Base tube 81、Holding sheet 82、Fricting strip 821、Slide bar 822、Spring 823、Pretightning force adjustment structure 83、Conical head 831、Push rod 832、Drive structure 833、Jacking block 8331、Valve rod 9.
Detailed description of the invention
With embodiment, the utility model is further described below in conjunction with the accompanying drawings.
Embodiment one, sees Fig. 1, and a kind of adjustable pneumatic diaphragm control valve of power output, including valve body 1, valve rod 9 and executing agency 4.Valve body 1 is made for stainless steel.Valve body 1 is provided with runner 11.Runner 11 is provided with valve seat 12.Valve seat 12 is provided with throttle orifice 13.Valve rod 9 is slidably and rotatably connected to valve body 1.The Ji Tuzhong lower end, one end of valve rod 9 is provided with spool 7.
Executing agency 4 includes drive rod 41, air chamber 42, closes valve spring 43 and crushing block 44.Drive rod 41 is coaxially connected in the upper end of valve rod 9.Air chamber 42 is stretched out in the upper end of drive rod 41.Air chamber 42 is provided with the valve opening diaphragm 45 constituting air chamber wall.Valve opening diaphragm 45 is connected to the upper end of drive rod 41.The upper end of conjunction valve spring 43 is connected to together with valve body 1, lower end is connected to together with crushing block 44.Crushing block 44 is nut body.Crushing block 44 is threadedly connected to the lower end of crushing block 44 drive rod 41.
The process of the utility model folding valve is: to air chamber 42 input pressure gas, pressed gas drives and moves on valve opening diaphragm 45, valve rod 9 is driven to be provided with by drive rod 41 when moving on valve opening diaphragm 45, valve rod 9 drives spool 7 to remove throttle orifice 13 and realizes opening valve, and during valve opening, valve opening spring 43 is further extruded；When moving down at the effect lower valve rod 9 closing valve spring 43 after the pressure laying down pressed gas.Drive spool 7 to be again brought together in throttle orifice 13 when valve rod 9 moves down to realize closing valve.
When needing the power output changing valve i.e. to close in the power of valve, upper end by rotation of drive rod 41, driving crushing block 44 to move up and down when drive rod 41 rotates, crushing block 44 makes the initial deformation amount closing valve spring 43 produce change when moving up and down, thus realizes changing the change of power output.
Embodiment two, with the difference of embodiment one be:
Seeing Fig. 2, executing agency 4 also includes holding rod 6, motor 5 and powershift mechanism 2.Drive rod 41 and holding rod 6 link together in " T " font.Holding rod 6 is provided with handle sleeve 61.Motor 5 includes motor casing 51 and motor shaft 52.Motor casing 51 is fixed together with holding rod 6.Motor casing 51 is provided with binding post 3.Drive rod 41 is connected to one end of motor shaft 52 by reductor 53.The other end of motor shaft 52 is located in holding rod 6.
See Fig. 3, between holding rod 6 and handle sleeve 61, be provided with elastic adjusting mechanism 8.Elastic adjusting mechanism 8 includes base tube 81, holding sheet 82 and pretightning force adjustment structure 83.Base tube 81 is set in outside holding rod 6.Base tube 81 is located in handle sleeve 61.Holding sheet 82 is made up of some pieces of fricting strips 821.Fricting strip 821 is circumferentially distributed along base tube 81.Fricting strip 821 is provided with some slide bars 822 radially extending axial distribution along base tube.Slide bar 822 slides and is arranged in base tube 81.The inner of slide bar 822 is provided with spring 823.Spring 823 drives fricting strip to be connected to together with handle sleeve 61 by slide bar.The pretightning force adjustment structure 83 of outer shifting includes two conical heads 831 and some push rods 832.Conical head 831 is tubular structure.Base tube 81 is linked together in being set on holding rod 6 and be located in base tube 81 by conical head 831 with holding rod 6.Conical head 831 is only slidably connected in base tube 81.Circumferentially distributed axially extending along base tube 81 of push rod 832.The all of slide bar 822 of same fricting strip 821 is supported on same push rod 832 by spring 823, and the slide bar of each piece of fricting strip is respectively supported by a push rod.
Seeing Fig. 4, two conical heads 831 are slidably connected in the two ends of base tube 81 in the way of miner diameter end is arranged oppositely.The two ends of push rod 832 are shelved on the conical surface of two conical heads 831.Pretightning force adjustment structure 83 also includes driving structure 833..Jacking block 8331 in driving structure 833 to include two two ends being threaded in base tube 81.Jacking block 8331 is set on holding rod 6.Two conical heads 831 are between two jacking blocks 8331.
Seeing Fig. 5, powershift mechanism 2 includes switching 21, pressing lever 22, latch 23 and insertion spring 24.Switch 21 and pressing lever 22 are positioned at the both sides of latch 23.Switch 21 is fixed in holding rod 6.Switch 21 is by compressing switch, owing to controlling motor 5 start and stop.Pressing lever 22 is located in holding rod 6.Latch 23 is slidably connected in holding rod 6.Motor shaft 52 is provided with the locking hole 25 inserted for latch 23.Latch 23 is provided with dodges hole 231.Dodge hole 231 for pressing lever 22 exceed latch 23 go drive switch 21.Dodge hole 231 and be provided with driving inclined-plane 232 towards one end of pressing lever 22.Insert spring 24 for driving latch 23 to be inserted in the locking hole 25 in motor shaft 52.
Seeing Fig. 6, binding post 3 includes insulator 33 and is arranged at the wiring Copper Foil 31 of insulator surface.Insulator 33 is fixed together with motor casing 51.Wiring Copper Foil 31 is electrically connected with the coil of motor.Wiring Copper Foil 31 is provided with wiring hole 32.Wiring hole 32 penetrates in insulator 33.Wiring hole 32 is the blind hole of vertically extending upper end closed.Wiring Copper Foil 31 is positioned at the lower end i.e. openend of wiring hole 32.Wiring hole 32 slidably connects sleeve 34.Sleeve 34 includes insulating segment 341 and conductive segment 342.Insulating segment 341 and conductive segment 342 are along sleeve 34 axial distribution.Insulating segment 341 is positioned at the lower section of conductive segment 342.Air cavity 35 and overload response cylinder 36 it is provided with in insulator 33.Wiring Copper Foil 31 constitutes a part for the wall of air cavity 35.Overload at least two, cylinder 36 of response.Overload response circumferentially distributed along sleeve 34 of cylinder 36.Overload response cylinder 36 includes overload response cylinder block 361 and overload response cylinder piston 362.Overload response cylinder block 361 is divided into closing chamber 3611 and open cavity 3612 by overload response cylinder piston 362.Close chamber 3611 to be connected with air cavity 35 by air flue 37.Open cavity 3612 is provided with pore 3613, i.e. realizes with atmosphere open by pore 3613.Overload response cylinder piston 362 is linked together with the insulating segment 341 in sleeve 34 by connecting rod 363.The axis of overload response cylinder piston 362 is parallel with the axis of sleeve 34.
Insulating segment 341 is arranged with exterior seal ring 343.Exterior seal ring 343 is rubber ring.Insulating segment 341 is sealed connected together by exterior seal ring 343 with wiring Copper Foil 31.Insulating segment 341 inner peripheral surface is provided with inner seal ring 344 and some support balls 345.The inner peripheral surface of conductive segment 342 is provided with inner support shell fragment 346.Inner support shell fragment 346 is the domes radially-inwardly arched upward along conductive segment.The outer peripheral face of conductive segment 342 is provided with outer support shell fragment 347.Outer support shell fragment 347 is the domes radially outward arched upward along conductive segment.Conductive segment 342 is connected to together with wiring Copper Foil 31 by outer support shell fragment 347.The upper end of wiring hole 32 is provided with air-vent 321.
See Fig. 7, when the power supply that induces one is to motor, one end that power line 38 is positioned at wiring Copper Foil 31 from wiring hole 32 is inserted sleeve 34.Insulating segment 341 is sealed connected together by inner seal ring 344 with power line 38.Inner support shell fragment 346 is connected to conductive segment 342 and power line 38 electric conductivity be linked together together with power line 38 elasticity.Conduction liquid is added in wiring hole 32.
Wiring Copper Foil 31 can produce temperature rise when the load, gas in air cavity 35 can produce expansion and iodine produces distillation and the air pressure in air cavity 35 is raised, and the structure that air pressure raises is that the gas inlet road 37 in air cavity 35 flows to close in chamber 3611 and drives (pressure in open cavity 3612 remains identical with atmospheric pressure) overload response cylinder piston 362 to move up.Overload response cylinder piston 362 by connecting rod 363 drive sleeve 34 wiring hole 32 on shifting.The response cylinder 36 that then transships when temperature rise to design temperature drive sleeve to slide into conductive segment 342 staggers with wiring Copper Foil 31 and insulating segment 341 contacts with wiring Copper Foil 31, thus realize power-off.When after Failure elimination, temperature can decline, temperature declines, and contraction of gas in air cavity 35 and iodine become solid-state and the air pressure in air cavity 36 is declined, the result declined is for making sleeve 34 slide downward in wiring hole 32, and when temperature returns to normal value, then conductive segment 342 links together with wiring Copper Foil 31 again thus realizes automatically reseting.
See Fig. 5, the present embodiment carries out the process of powershift: when pressing lever 22 is in and extracts state, under the effect inserting spring 24, latch 23 is inserted into dodge and holding rod 6 and motor shaft 52 is linked together in hole 231, now switch 21 is off, motor 5 is stopping, can only manual rotation, the most manually grip handle sleeve 61 and rotate holding rod 6, holding rod 6 drives motor shaft 52 to rotate together by latch 23, drives drive rod 41 to rotate and realize driving valve rod 9 to lift when motor shaft 52 rotates.
Need to carry out motor when driving, press pressing lever 22, pressing lever 22 move down while under the effect driving inclined-plane 232, latch 23 is extracted and is dodged the sheathed of hole 231 and make by pressing spring 24 energy storage.When pressing lever 22 is applied to switch 21, latch 23 complete to extract dodge hole 231 i.e. motor shaft 52 disconnect with holding rod 6, now motor 5 electric and start, electric motor starting rear motor axle 52 rotates and drives drive rod 41 to rotate.When extracting pressing lever 22 and make pressing lever lose the effect to switch 21, motor dead electricity stops.
See Fig. 3 and Fig. 4, the process of the elastic effect adjusting handle sleeve is: drive conical head 831 axially moving along base tube 81 by rotating jacking block 8331, conical head 831 drives push rod 832 moving radially along base tube 81, push rod 832 extrusion spring 823 and change pretightning force.
Claims (10)
1. the adjustable pneumatic diaphragm control valve of power output, including valve body be provided with runner, valve rod, be arranged at the valve seat being provided with throttle orifice of runner, be connected to valve rod spool and drive valve rod to move axially and drive the executing agency of throttle orifice described in spool opening and closing, it is characterized in that, described executing agency includes air chamber, the valve opening diaphragm constituting the driving valve rod unlatching spool of air chamber wall, drives closing valve spring, the crushing block being supported in conjunction valve spring one end and driving crushing block extruding conjunction valve spring and changing the drive rod of the deflection closing valve spring of valve rod closedown spool.
Power output the most according to claim 1 is adjustable pneumatic diaphragm control valve, it is characterised in that described drive rod wears and be threadedly connected to described crushing block.
Power output the most according to claim 2 is adjustable pneumatic diaphragm control valve, it is characterised in that described drive rod is coaxially connected in described valve rod, and described valve opening diaphragm and drive block are connected to the two ends of described drive rod.
4. according to the adjustable pneumatic diaphragm control valve of power output described in claim 1 or 2 or 3, it is characterized in that, described executing agency also includes the holding rod being connected to drive rod, motor and powershift mechanism, described motor includes motor casing and motor shaft, described motor casing is fixed together with described holding rod, described drive rod is connected to one end of described motor shaft, described powershift mechanism includes the switch starting described motor, drive the pressing lever of described switch, the insertion spring that the latch being slidably connected in holding rod linked together with holding rod by motor shaft and driving latch are inserted in motor shaft, described latch is between described switch and pressing lever, described latch is provided with dodges hole, described hole of dodging is provided with the driving inclined-plane departing from motor shaft to drive described latch with the cooperation of described pressing lever.
Power output the most according to claim 4 is adjustable pneumatic diaphragm control valve, it is characterized in that, described holding rod is arranged with handle sleeve, the elastic adjusting mechanism of the elastic force being provided with between described holding rod and handle sleeve between regulation handle sleeve and holding rod, described elastic adjusting mechanism includes the base tube being set in outside holding rod and being located in handle sleeve and is looped around the holding sheet outside described base tube, described holding sheet is constituted along the circumferentially distributed fricting strip of base tube by some pieces, described fricting strip is provided with some slide bars radially extended along base tube, described sliding bar is arranged in described base tube, the inner of described slide bar is provided with shift-in outside driving slide bar and drives fricting strip to be connected to spring together with handle sleeve, described elastic adjusting mechanism is additionally provided with the pretightning force adjustment structure of the pretightning force regulating described spring.
Power output the most according to claim 5 is adjustable pneumatic diaphragm control valve, it is characterized in that, described pretightning force adjustment structure includes the conical head of two tubular structures being supported on outside holding rod by base tube, drive conical head move axially and can make conical head stop at setting position driving structure and some push rods, said two conical head is slidably connected in the two ends of described base tube in the way of miner diameter end is arranged oppositely, the two ends of described push rod are shelved on the conical surface of said two conical head, the all of described slide bar of same fricting strip passes through described spring supporting on same described push rod, the described slide bar of each piece of fricting strip is respectively supported by a described push rod.
Power output the most according to claim 6 is adjustable pneumatic diaphragm control valve, it is characterised in that described driving structure includes the jacking block in two two ends being threaded in described base tube, and said two conical head is between said two jacking block.
Power output the most according to claim 4 is adjustable pneumatic diaphragm control valve, it is characterized in that, described motor is provided with binding post, described binding post includes insulator and is arranged at the wiring Copper Foil of insulator, described wiring Copper Foil is electrically connected with the coil of described motor, described wiring Copper Foil is provided with the wiring hole penetrated in described insulator, described wiring hole slidably connects sleeve, described sleeve includes the conductive segment together with being connected to of the insulating segment along sleeve axial distribution with wiring Copper Foil, be provided with in described insulator air cavity that the heat produced by wiring Copper Foil carries out heating and by the gas expansion in air cavity be driven for the overload response cylinder driving conductive segment to stagger with described wiring Copper Foil.
Power output the most according to claim 8 is adjustable pneumatic diaphragm control valve, it is characterized in that, described overload response cylinder includes overload response cylinder block and overload response cylinder piston, described overload response cylinder block is divided into closing chamber and open cavity by described overload response cylinder piston, described closing chamber connects with described air cavity, and described overload response cylinder piston is linked together with described sleeve by connecting rod.
Power output the most according to claim 8 is adjustable pneumatic diaphragm control valve, it is characterized in that, described wiring hole is vertically extending, described wiring Copper Foil is positioned at the lower end of described wiring hole, described insulating segment is positioned at the lower section of described conductive segment, described insulating segment is sealed connected together with described wiring hole, is filled with conduction liquid in described wiring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199585.9U CN205423842U (en) | 2016-03-16 | 2016-03-16 | Pneumatic film governing valve that power output is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199585.9U CN205423842U (en) | 2016-03-16 | 2016-03-16 | Pneumatic film governing valve that power output is adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423842U true CN205423842U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199585.9U Expired - Fee Related CN205423842U (en) | 2016-03-16 | 2016-03-16 | Pneumatic film governing valve that power output is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736807A (en) * | 2016-03-16 | 2016-07-06 | 杭州艾诺流体控制仪表有限公司 | Output-force-adjustable pneumatic diaphragm regulating valve |
-
2016
- 2016-03-16 CN CN201620199585.9U patent/CN205423842U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736807A (en) * | 2016-03-16 | 2016-07-06 | 杭州艾诺流体控制仪表有限公司 | Output-force-adjustable pneumatic diaphragm regulating valve |
| CN105736807B (en) * | 2016-03-16 | 2018-05-22 | 杭州艾诺流体控制仪表有限公司 | Power output is adjustable pneumatic diaphragm control valve |
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