CN105485409A

CN105485409A - Circular intelligent valve locator

Info

Publication number: CN105485409A
Application number: CN201610008485.8A
Authority: CN
Inventors: 董全林; 于薇; 丁莹
Original assignee: Beijing Institute Of Aeronautics Wenzhou Research Institute
Current assignee: Valve Co.,Ltd.
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-04-13
Anticipated expiration: 2036-01-05
Also published as: CN105485409B

Abstract

The invention discloses a circular intelligent valve locator which comprises a wire displacement measurement unit device (1), a pneumatic unit device (2), a displaying and packaging unit device and a packaging shell unit device. The wire displacement measurement unit device (1) comprises a linear displacement sensor (10A), a displacement measurement support (1A) and a displacement measurement connecting piece (1B). The pneumatic unit device (2) comprises a solenoid valve set (10F), a gas circuit bottom plate (2A) and a gas guide plate (2B). The packaging shell unit device comprises a top cover (3), a first sleeve (4), a connecting piece (5), a second sleeve (6), a base (7) and a power box end cover (15). The displaying and packaging unit device comprises an upper box body (8), a lower box body (9) and a keyboard support (14).

Description

A kind of circular intelligent valve positioner

Technical field

The present invention relates to a kind of positioning means, more particularly, refer to a kind of circular intelligent valve positioner.Being drive by controlling the stroke of external air source flow to the cylinder of valve actuator, realizing the positioning work piece of the control to adjustment type valve or switch valve aperture.

Background technique

The automatic control of production process is called for short process control, and it occupies extremely important status in the industrial production.The quality of process control is decided by Controlling Apparatus for Processes to a great extent, and it comprises transmitter, regulator, final controlling element and various sub controlling units etc.A kind of auxiliary control instrument is called valve positioner, it is the object that various countries are competitively studied, it determines the regulation quality of process control to a certain extent, and along with the development of process control level, positioning work piece also must development to meet the requirement of modern production to process control.

Valve positioner, pneumatic positioner valve, electropneumatic valve positioner and intelligent valve positioner is divided by structure, it is the main accessories of modulating valve, usual and pneumatic control valve supports the use, it accepts the output signal of regulator, then goes to control pneumatic control valve, when after modulating valve action with its output signal, the displacement of valve rod feeds back to valve positioner by mechanical device again, and valve position situation passes to Upper system by electrical signal.

Before five more than ten years, controlling (or automatic feedback process) loop is all gas-powered, transmitter, regulator and last control unit (such as a modulating valve) is joined together and by the mutual communication of the pneumatic signal of a 20-l00KPa, this signal is also used for driving the actuator of last control unit as a power source.In many aspects, this remains correct.But in some cases, position reaction or the change speed of such as valve are too slow, when the actuator required for the valve of large-size is too large, re-use control object and control accuracy that air pressure signal low as 20-100KPa just cannot reach expection.In order to address this problem, pneumatic positioner valve is developed.Pneumatic positioner valve exports the role playing the part of volume regulator, signal amplifier and relationship controller between valve location at regulator.Operate a gas relay to the air pressure signal of positioning work piece, gas relay operates a guiding valve or nozzle-baffle mechanism in order.In positioning work piece, position determined by a cam.In last control unit, why will apply spring, be the reverse reaction that will ensure actuator when air pressure reduces.

The input signal of electropneumatic valve positioner is the DC signal of 0 ~ 10mA, exports as air pressure signal.It can play electropneumatic transducer and pneumatic positioner valve two kinds effect.It accepts the signal of electric controller, and it and pneumatic control valve support the use.Electropneumatic valve positioner may be used for controlling Pneumatic straight stroke or angular stroke control valve; Also be applicable to the single-acting state of spring acuator and the double-action situation without spring acuator simultaneously; It also can be blasting resistance structure and non-blasting resistance structure.It is by principle of moment balance work, and the maximum difference of it and pneumatic positioner valve is that it changes torque motor into the bellows of pneumatic positioner valve.When signal code is passed into the coil two ends of torque motor, after it and permanent-magnet steel effect, a moment is produced to main lever, so baffle plate is near nozzle, delivery pressure after amplifier amplifies is passed into the cylinder of actuator, by feedback cam stretching feedback spring, when spring balances each other to the moment that the feedback moment of main lever and input current act on main lever, instrument reaches state of equilibrium.Now, the valve location that certain input current is just corresponding certain.

At 70 ~ beginning of the eighties, this kind of positioning work piece accounts for 85% ~ 90% in China's using scope, and mechanical force equilibrium structure shortcoming is: environment resistant difference, is subject to temperature, extraneous vibration impact, easy to wear, manually adjusts time-consuming and needs to interrupt control loop.But because it is cheap, still in use the traditional forms of enterprises.

Electronic positioner for electric valve started to move towards market at the beginning of the eighties, and technological means was constantly updated in recent years.Stem position is converted to electrical signal with linear potentiometer and initial set value compares, and amplifies and exports piezoelectric micro valve to, control output pressure, export through pneumatic amplifier through the adjustment of PI controller and signal.When input signal and feedback signal balance, the pressure signal of pneumatic amplifier stable output, ensures that modulating valve is accurately located.As can be seen here, control principle is different from mechanical force equilibrium principle in the past completely, and setting value is electrical signal with actual feedback more completely, it is no longer equilibrium of forces, decrease intermediate transfer link, eliminate some problems in power transmission and transfer process, improve antijamming capability.Wherein electric conversion element adopts piezoelectric micro valve, and piezo electric valve has the outstanding advantages such as quick action, quality is little, the life-span is long, while realizing gas circuit balance, completes the accurate transformation of electrical signal to gas signal.

Along with the development of microelectronic technology, the level of integration of microprocessor chip is more and more higher can integrated CPU, storage, timer/counter, parallel and serial line interface, even A/D converter etc. simultaneously on one chip.People are called " single chip microcontroller ", this VLSI chip referred to as single-chip microcomputer.The appearance of single-chip microcomputer, cause the fundamental change of instrument and apparatus structure, take single-chip microcomputer as the conventional electrical circuit that main body replaces traditional instrument instrument, computer technology and survey control technology can be easy to combine, the what is called " intelligent measuring control instrument " of composition a new generation.This novel intelligent instrument is in the automation of process, and the diversified aspect of data processing and function, all achieves huge progress.

The novel concept of VALTEK company proposition intelligent supervisor IVM (IntelligentValveManager) in the U.S. his state outstanding the earliest, present positioning work piece self diagnosis is constantly strengthened with the function such as to communicate, and intelligent valve positioner has become the focus of the research of instrument and apparatus company of various countries, exploitation.Intelligent Electrical Valve Positioner with microprocessor (MCU) for core controller, the digital control algorithm of employing advanced person completes the accurate location to pneumatic valve, and on this basis a series of Function Extension and enhancing are carried out to it, the wider valve positioner of current application is intellectual valve positioner mostly, and it and common valve positioning work piece have compared significant advantage in performance, service condition, price performance etc.

The study hotspot of current positioning work piece is mainly intelligent valve positioner, and what the electropneumatic valve positioner of use adopted is mechanical type force balance principle, comes with some shortcomings and can not meet the needs of process control development.Intelligent valve positioner set machinery, electronics, communication and control theory knowledge and related software knowledge are intelligent artifacts interdisciplinary.At Military and civil fields such as chemical industry, pharmacy, electric power, material, scientific research, life science, mechanical industry, electronics industries, there is application prospect widely.

Summary of the invention

In order to the valve opening solving existing modulating valve can not effectively control, a kind of of the present invention's design is applicable to the intrinsic safety type, the circular intelligent valve positioner that drive pneumatic actuator.This valve positioner controls the air inflow of external air source by pneumatic unit device, and compares with the displacement signal that linear movement measuring cell arrangement feeds back, thus realizes the control to adjustment type valve or switch valve aperture.Adopt universal sealing arrangements and special sealing ring to combine to external casing, adopt combination form of folding that each function block is realized interconnected, realize the control of single-acting and double-action pneumatic actuator.The valve positioner of the present invention's design can realize linear displacement and angular displacement two kinds of metering systems, and effectively can improve control efficiency and save tolerance.

The advantage of the circular intelligent valve positioner of the present invention is:

1. each several part connect reliable, firmly, good airproof performance, accurate positioning, be easy to install, meet and realize pneumatic control in industry spot, the control of single-acting and double-acting cylinder can be realized respectively, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change.

2. viewing window, displacement measurement mechanism, positioning disk, circuit supporting structure, gas circuit structure are convenient to processing, good manufacturability, are easy to the compatibility of electrical control and are reliably connected.

3. seal ring ensure that the sealing after installation, and dust protection, is easy to screw, screw off cleaning, improves the convenience of installation, debugging, also ensure that the reliability of electric elements inside.

4. the circular intelligent valve positioner of the present invention's design can realize linear displacement and angular displacement two kinds of metering systems.

5., in pneumatic unit device, (1) solenoid valve is general high reliability solenoid valve, grouping realize single-acting and double-acting cylinder control, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change; (2) valve plate is convenient to processing, good manufacturability, and his cavity is easy to realize buffering when opening and closing, and controls flexibility good, is easy to the compatibility of electrical control and is reliably connected; (3) filter air bound circle ensure that installation after sealing, dust protection, is easy to screw, screw off cleaning, and the convenience of improve installations, debugging, also ensure that the reliability of electric elements inside.

6. in online displacement measurement unit device, displacement transducer is general high reliability sensor, the control of single-acting and double-acting cylinder can be realized respectively, reliability is high, efficiency is high, versatility is good, for ease of maintenaince and change, linear displacement and angular displacement two kinds of metering systems can be realized

In the circular intelligent valve positioner of 7. the present invention's design, the large sealing ring that adopts is number measure-alike can replace mutually, effectively improves the versatility of part.

8. reduce costs when in the circular intelligent valve positioner that the present invention designs, a large amount of employing Mold for Plastics casting die is easy to mass production.

9. the first seal ring 11 adopted in the present invention and the second seal ring 13 all have two way sealed and lip seal function, and sealability is excellent.

Accompanying drawing explanation

Fig. 1 is the front view of the circular intelligent valve positioner of the present invention.

Figure 1A is the right elevation of the circular intelligent valve positioner of the present invention.

Figure 1B is the left view of the circular intelligent valve positioner of the present invention.

Fig. 1 C is the stereogram of the circular intelligent valve positioner of the present invention.

Fig. 1 D is another view stereo figure of the circular intelligent valve positioner of the present invention.

Fig. 1 E is the exploded view of the circular intelligent valve positioner of the present invention.

Fig. 1 F is the sectional view of the circular intelligent valve positioner of the present invention.

Fig. 2 is the structural drawing of the displacement measurement construction package of the circular intelligent valve positioner of the present invention.

Fig. 2 A is the structural drawing of displacement measurement construction package medium-height trestle of the present invention.

Fig. 2 B is the structural drawing of link in displacement measurement construction package of the present invention.

Fig. 3 is the erection drawing of pneumatic control construction package and base in the circular intelligent valve positioner of the present invention.

Fig. 3 A is the structural drawing of pneumatic control construction package of the present invention.

Fig. 3 B is the structural drawing of gas circuit base plate in pneumatic control construction package of the present invention.

Fig. 3 C is another viewing angle constructions figure of gas circuit base plate in pneumatic control construction package of the present invention.

Fig. 3 D is the first sectional structure chart of gas circuit base plate in pneumatic control construction package of the present invention.

Fig. 3 E is the second sectional structure chart of gas circuit base plate in pneumatic control construction package of the present invention.

Fig. 3 F is the 3rd sectional structure chart of gas circuit base plate in pneumatic control construction package of the present invention.

Fig. 3 G is the structural drawing of aeroscopic plate in pneumatic control construction package of the present invention.

Fig. 3 H is another corner structure figure of aeroscopic plate in pneumatic control construction package of the present invention.

Fig. 4 is the erection drawing showing package structure assembly and base in the circular intelligent valve positioner of the present invention.

Fig. 4 A is the structural drawing that the present invention shows package structure assembly.

Fig. 4 B is the structural drawing that the present invention shows upper box in package structure assembly.

Fig. 4 C is another viewing angle constructions figure that the present invention shows upper box in package structure assembly.

Fig. 4 D is the structural drawing that the present invention shows lower box in package structure assembly.

Fig. 4 E is another viewing angle constructions figure that the present invention shows lower box in package structure assembly.

Fig. 4 F is the structural drawing that the present invention shows keyboard holder in package structure assembly.

Fig. 5 is the structural drawing of the present invention circular intelligent valve positioner China and foreign countries housing.

Fig. 5 A is another viewing angle constructions figure of the present invention circular intelligent valve positioner China and foreign countries housing.

Fig. 5 B is the cut-away view of the present invention circular intelligent valve positioner China and foreign countries housing.

Fig. 5 C is the structural drawing of the top cover of the circular intelligent valve positioner of the present invention.

Fig. 5 D is the structural drawing of the first seal ring of the circular intelligent valve positioner of the present invention.

Fig. 5 E is the structural drawing of the second seal ring of the circular intelligent valve positioner of the present invention.

Fig. 5 F is the structural drawing of the first sleeve of the circular intelligent valve positioner of the present invention.

Fig. 5 G is the structural drawing of the link of the circular intelligent valve positioner of the present invention.

Fig. 5 H is another viewing angle constructions figure of the link of the circular intelligent valve positioner of the present invention.

Fig. 5 I is the structural drawing of the second sleeve of the circular intelligent valve positioner of the present invention.

Fig. 5 J is another viewing angle constructions figure of the second sleeve of the circular intelligent valve positioner of the present invention.

Fig. 5 K is the structural drawing of circular intelligent valve positioner the 3rd sleeve of the present invention.

Fig. 5 L is the structural drawing of the base of the circular intelligent valve positioner of the present invention.

Fig. 5 M is the first cut-away view of the base of the circular intelligent valve positioner of the present invention.

Fig. 5 N is the second cut-away view of the base of the circular intelligent valve positioner of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

Shown in Fig. 1, Figure 1A ~ Fig. 1 F, the circular intelligent valve positioner of one of the present invention's design, it includes linear movement measuring cell arrangement 1, pneumatic unit device 2, display encapsulation unit device and packing casing cell arrangement.

linear movement measuring cell arrangement 1

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 2, Fig. 2 A, Fig. 2 B, linear movement measuring cell arrangement 1 includes linear displacement transducer 10A, changeable displacement measuring bracket 1A, displacement measurement link 1B and presses closer screw 1C, AB for the AA that fixed displacement measures link 1B and presses closer screw 1D, AA square nut 1C2, AB square nut 1D2.The KTR-M-25 model that described linear displacement transducer 10A selects Shenzhen minot Electronics Co., Ltd. to produce, rectilinear path 25mm.

changeable displacement measuring bracket 1A

Shown in Fig. 2, Fig. 2 A, changeable displacement measuring bracket 1A is formed in one structure.The middle part of changeable displacement measuring bracket 1A is provided with through hole 1A1F and dividing plate 1A6; This through hole 1A1F is used for linear displacement transducer 10A and passes.

The top plate 1A-1 of changeable displacement measuring bracket 1A is provided with AA limited post 1A2, AB limited post 1A3, AC limited post 1A4, circular arc riser 1A5, AA dividing plate 1A7, AB dividing plate 1A8; AA limited post 1A2, AB limited post 1A3 and AC limited post 1A4 is positioned on circular arc riser 1A5; AA dividing plate 1A7 and AB dividing plate 1A8 is for strengthening the bearing capacity of changeable displacement measuring bracket 1A.Due to changeable displacement measuring bracket 1A for opening designs, therefore realize connecting of opening two ends with AA dividing plate 1A7 and AB dividing plate 1A8.The AA draw-in groove 1A9 for installing B circuit board 10E and AB draw-in groove 1A10 is respectively equipped with at the two ends of opening.AA limited post 1A2 is provided with AA spacing hole 1A2A, and this AA spacing hole 1A2A is for placing the IC support arm 9F of lower box 9.AB limited post 1A3 is provided with AB spacing hole 1A3A, and this AB spacing hole 1A3A is for placing the IB support arm 9E of lower box 9.AC limited post 1A4 is provided with AC spacing hole 1A4A, and this AC spacing hole 1A4A is for placing the IA support arm 9D of lower box 9.

The lower panel 1A-2 of changeable displacement measuring bracket 1A is provided with AA supporting post 1A1A, AB supporting post 1A1B, AC supporting post 1A1C, AD supporting post 1A1D, stiffening rib 1A1E and loss of weight chamber 1A1G; Stiffening rib 1A1E and 1A1G interval, loss of weight chamber are arranged.AA supporting post 1A1A is provided with AA through hole 1A1A1, and this AA through hole 1A1A1 is for placing A screw 10I, and the threaded end through the A screw 10I of AA through hole 1A1A1 is connected in the tapped hole of GA supporting post 71 of base 7.AB supporting post 1A1B is provided with AB through hole 1A1B1, and this AB through hole 1A1B1 is for placing B screw 10J, and the threaded end through the C screw 10K of AC through hole 1A1C1 is connected in the tapped hole of GB supporting post 72 of base 7.AC supporting post 1A1C is provided with AC through hole 1A1C1, and this AC through hole 1A1C1 is for placing C screw 10K, and the threaded end through the C screw 10K of AC through hole 1A1C1 is connected in the tapped hole of GC supporting post 73 of base 7.AD supporting post 1A1D is provided with AD through hole 1A1D1, and this AD through hole 1A1D1 is for placing D screw 10L (as shown in Figure 3), and the threaded end through the D screw 10I of AD through hole 1A1D1 is connected in the tapped hole of GD supporting post 74 of base 7.

In the present invention, changeable displacement measuring bracket 1A adopts process for un-metal material, as plastics, PC material, PVC material, ABS material etc.

displacement measurement link 1B

Shown in Fig. 2, Fig. 2 B, displacement measurement link 1B is formed in one structure.The center of displacement measurement link 1B is provided with AE through hole 1B5, and one end that this AE through hole 1B5 is used for linear displacement transducer 10A is passed, and linear displacement transducer 10A is arranged on the AA end plates 1B4 of displacement measurement link 1B.Displacement measurement link 1B is provided with AA boss 1B1, AB boss 1B2, AC boss 1B3; AA groove 1B6 between AA boss 1B1 and AB boss 1B21; AB groove 1B7 between AB boss 1B2 and AC boss 1B3; Described AA groove 1B6 presses closer screw 1C and AB press closer screw 1D for placing AA, presses closer screw 1C and AB press closer screw 1D and realize the fixing of displacement measurement link 1B and base 7 by AA; Described AB groove 1B7 is for placing AC seal ring 1E.

After GB through hole 7E2, AA square nut 1C2 (AA square nut 1C2 is arranged in the GB opening slot 7E4 of base 7) of one end that AA presses closer screw 1C in turn through AA seal ring 1C1, base 7, be placed in AA groove 1B6.

After GA through hole 7E1, AB square nut 1D2 (AB square nut 1D2 is arranged in the GA opening slot 7E3 of base 7) of one end that AB presses closer screw 1D in turn through AB seal ring 1D1, base 7, be placed in AA groove 1B6.

In the present invention, displacement measurement link 1B adopts aluminum alloy material processing, as 2A12-T4 materials processing.

pneumatic unit device 2

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 3, Fig. 3 A ~ Fig. 3 H, pneumatic unit device 2 includes solenoid valve group 10F, gas circuit base plate 2A, aeroscopic plate 2B and gas source connector.Solenoid valve group 10F is arranged on the top plate 2A-1 of gas circuit base plate 2A.Solenoid valve group 10F is four direct-acting type two-position three-way solenoid valve compositions, the V114-5LZ model that solenoid valve selects SMC company to produce.

gas circuit base plate 2A

Shown in Fig. 3, Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 D, Fig. 3 E, Fig. 3 F, gas circuit base plate 2A is formed in one structure.Gas circuit base plate 2A is provided with BA gas channels 2A1, BB gas channels 2A2, BC gas channels 2A3, BD gas channels 2A4, BE gas channels 2A5, BF gas channels 2A6, BG gas channels 2A7, BH gas channels 2A8, BI gas channels 2A9; And BF gas channels 2A6, BG gas channels 2A7, BH gas channels 2A8 and BI gas channels 2A9 is positioned on lower panel 2A-2; BA gas channels 2A1 and BC gas channels 2A3 conducting; BB gas channels 2A2 and BF gas channels 2A6 conducting; BD gas channels 2A4 and BH gas channels 2A8 conducting; BE gas channels 2A5 and BI gas channels 2A9 conducting.

Gas circuit base plate 2A is provided with BA through hole 2A1A, BB through hole 2A1B, BC through hole 2A1C, BD through hole 2A1D, BE through hole 2A1E; BA through hole 2A1A is used for BB screw 2L and passes, and BB screw 2L is connected to screw thread through BA through hole 2A1A rear thread and inlays in circle, and this screw thread is inlayed circle and is arranged in the blind hole of GE supporting post 7G5 of base 7.BB through hole 2A1B is used for BA screw 2K and passes, and BA screw 2K is connected to screw thread through BB through hole 2A1B rear thread and inlays in circle, and this screw thread is inlayed circle and is arranged in the blind hole of GH supporting post 7H1 of base 7.BC through hole 2A1C is used for BC screw 2M and passes, and BC screw 2M is connected to screw thread through BC through hole 2A1C rear thread and inlays in circle, and this screw thread is inlayed circle and is arranged in the blind hole of GI supporting post 7H2 of base 7.BD through hole 2A1D is used for BE screw 2R and passes, and BE screw 2R is connected to screw thread through BD through hole 2A1D rear thread and inlays in circle, and this screw thread is inlayed circle and is arranged in the blind hole of GG supporting post 7G7 of base 7.BE through hole 2A1E is used for BD screw 2P and passes, and BD screw 2P is connected to screw thread through BE through hole 2A1E rear thread and inlays in circle, and this screw thread is inlayed circle and is arranged in the blind hole of GF supporting post 7G6 of base 7.

In the present invention, gas circuit base plate 2A adopts process for un-metal material, as PPS materials processing.

aeroscopic plate 2B

Shown in Fig. 3, Fig. 3 A, Fig. 3 G, Fig. 3 H, aeroscopic plate 2B is formed in one structure.Aeroscopic plate 2B is provided with the through hole (i.e. BF through hole 2B1A, BG through hole 2B1B, BH through hole 2B1C, BI through hole 2B1D) that passes through for source of the gas and the countersunk head through hole (i.e. BA countersunk head through hole 2B2A, BB countersunk head through hole 2B2B, BC countersunk head through hole 2B2C, BD countersunk head through hole 2B2D, BE countersunk head through hole 2B2E, BF countersunk head through hole 2B2F) for mounting screw.

The outlet end of BF through hole 2B1A is provided with BA filter screen 2C, the entry end of BF through hole 2B1A is provided with BA gas source connector 2-1.

The outlet end of BG through hole 2B1B is provided with BB filter screen 2D, the entry end of BG through hole 2B1B is provided with BB gas source connector 2-2.

The outlet end of BH through hole 2B1C is provided with BC filter screen 2E, the entry end of BH through hole 2B1C is provided with BC gas source connector 2-3.

The outlet end of BI through hole 2B1D is provided with BD filter screen 2F, the entry end of BI through hole 2B1D is provided with BD gas source connector 2-4.

BA countersunk head through hole 2B2A is for installing BA screw 2B1, and one end of BA screw 2B1 is inlayed on circle 2W through being connected to BE screw thread after BA countersunk head through hole 2B2A, and BE screw thread is inlayed circle 2W and is arranged in the GA blind hole 7D-1 of gas circuit connected component 7D of base 7.

BB countersunk head through hole 2B2B is for installing BB screw 2B2, and one end of BB screw 2B2 is inlayed on circle 2X through being connected to BF screw thread after BB countersunk head through hole 2B2B, and BF screw thread is inlayed circle 2X and is arranged in the GB blind hole 7D-2 of gas circuit connected component 7D of base 7.

BC countersunk head through hole 2B2C is for installing BC screw 2B3, and one end of BC screw 2B3 is inlayed on circle 2U through being connected to BC screw thread after BC countersunk head through hole 2B2C, and BC screw thread is inlayed circle 2U and is arranged in the GC blind hole 7D-3 of gas circuit connected component 7D of base 7.

BD countersunk head through hole 2B2D is for installing BD screw 2B4, and one end of BD screw 2B4 is inlayed on circle 2V through being connected to BD screw thread after BD countersunk head through hole 2B2D, and BD screw thread is inlayed circle 2V and is arranged in the GD blind hole 7D-4 of gas circuit connected component 7D of base 7.

BE countersunk head through hole 2B2E is for installing BE screw 2B5, and one end of BE screw 2B5 is inlayed on circle 2S through being connected to BA screw thread after BE countersunk head through hole 2B2E, and BA screw thread is inlayed circle 2S and is arranged in the GE blind hole 7D-5 of gas circuit connected component 7D of base 7.

BF countersunk head through hole 2B2F is for installing BF screw 2B6, and one end of BF screw 2B6 is inlayed on circle 2T through being connected to BB screw thread after BF countersunk head through hole 2B2F, and BB screw thread is inlayed circle 2T and is arranged in the GF blind hole 7D-6 of gas circuit connected component 7D of base 7.

The A panel 2B-1 of aeroscopic plate 2B is provided with BA countersunk head through hole 2B2A, BB countersunk head through hole 2B2B, BC countersunk head through hole 2B2C, BD countersunk head through hole 2B2D, BE countersunk head through hole 2B2E, BF countersunk head through hole 2B2F; BF through hole 2B1A, BG through hole 2B1B, BH through hole 2B1C, BI through hole 2B1D.

The B panel 2B-2 of aeroscopic plate 2B is provided with the spacing blind hole 2B3B of BA spacing blind hole 2B3A and BB; The GA limited post 7D5 of the spacing blind hole 2B3A of BA on the gas circuit connected component 7D of pedestal for placed 7; The GB limited post 7D6 of the spacing blind hole 2B3B of BB on the gas circuit connected component 7D of pedestal for placed 7.

In the present invention, aeroscopic plate 2B adopts aluminum alloy material processing, as 2A12-T4 materials processing.

display encapsulation unit device

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 4, Fig. 4 A ~ Fig. 4 F, display encapsulation unit device includes upper box 8, lower box 9, keyboard holder 14.The transverse slat 14A of keyboard holder 14 is arranged on the top of upper box 8, and the riser 14B of keyboard holder 14 is arranged on lower box 9.

upper box 8

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 4, Fig. 4 A, Fig. 4 B, Fig. 4 C, upper box 8 is formed in one structure.The top plate 8A of upper box 8 is provided with HA rectangular through-hole 8A1, HB rectangular through-hole 8A3, thread hole 8A2; This HA rectangular through-hole 8A1 place is for installing LCD display 10C (the HG1286483G-VA model that LCD display 10C selects Hai Xunhua field, Beijing Electronics Co., Ltd. to produce).This HB rectangular through-hole 8A3 is used for passing of USB flash disk interface equipment.

The connecting ring 8B of upper box 8 is provided with HA through hole 8B1, HB through hole 8B2, HC through hole 8B3; HA through hole 8B1 be used for HA screw 8-1 pass, the HA screw 8-1 through HA through hole 8B1 is connected to HA screw thread and inlays on circle, and HA screw thread inlay circle be arranged in the IA blind hole 9B11 of lower box 9.HB through hole 8B2 be used for HB screw 8-2 pass, the HB screw 8-2 through HB through hole 8B2 is connected to HB screw thread and inlays on circle, and HB screw thread inlay circle be arranged in the IB blind hole 9B21 of lower box 9.HC through hole 8B3 be used for HC screw 8-3 pass, the HC screw 8-3 through HC through hole 8B3 is connected to HC screw thread and inlays on circle, and HC screw thread inlay circle be arranged in the IC blind hole 9B31 of lower box 9.

The connecting ring 8B inwall of upper box 8 is provided with HA annular cavity 8C, and this HA annular cavity 8C is for placing A circuit board 10D; The lower end surface of upper box 8 is provided with HA lock dog 8D and HB lock dog 8E; HA lock dog 8D is placed in the IA restraining groove 9-1 of lower box 9, and HB lock dog 8E is placed in the IB restraining groove 9-2 of lower box 9.Lock dog can stop upper box 8 rotation in a circumferential direction with coordinating of restraining groove.

In the present invention, upper box 8 adopts process for un-metal material, as ABS material processing.

lower box 9

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 4, Fig. 4 A, Fig. 4 D, Fig. 4 E, lower box 9 is formed in one structure.The dunnage 9A of lower box 9 is provided with stiffening rib 9A1, countersunk head chamber 9A2, HC rectangular through-hole 9A3; The casing ring 9B outer wall of lower box 9 is provided with IA restraining groove 9-1 and IB restraining groove 9-2, and HA lock dog 8D is placed in the IA restraining groove 9-1 of lower box 9, and HB lock dog 8E is placed in the IB restraining groove 9-2 of lower box 9.

IA inner convex platform 9B1 on the inwall of the casing ring 9B of lower box 9, IA inner convex platform 9B1 is provided with IA blind hole 9B11, is provided with HA screw thread and inlays circle in this IA blind hole 9B11.

IB inner convex platform 9B2 on the inwall of the casing ring 9B of lower box 9, IB inner convex platform 9B2 is provided with IB blind hole 9B21, is provided with HB screw thread and inlays circle in this IB blind hole 9B21.

IC inner convex platform 9B3 on the inwall of the casing ring 9B of lower box 9, IC inner convex platform 9B3 is provided with IC blind hole 9B31, is provided with HC screw thread and inlays circle in this IC blind hole 9B31.

The below of lower box 9 is provided with I boss 9C, IA support arm 9D, IB support arm 9E, IC support arm 9F; This I boss 9C is provided with IE blind hole 9C1, and IE blind hole 9C1 inlays circle for installing HD screw thread.The end of IA support arm 9D is IA hook 9D1, and the hook end of IA support arm 9D through after the AC spacing hole 1A4A on the AC limited post 1A4 of changeable displacement measuring bracket 1A, and is clamped by IA hook 9D1.The end of IB support arm 9E is IA hook 9D1, and the hook end of IB support arm 9E through after the AB spacing hole 1A3A on the AB limited post 1A3 of changeable displacement measuring bracket 1A, and is clamped by IA hook 9D1.The end of IC support arm 9F is IA hook 9D1, and the hook end of IC support arm 9F through after the AA spacing hole 1A2A on the AA limited post 1A2 of changeable displacement measuring bracket 1A, and is clamped by IA hook 9D1.

In the present invention, lower box 9 adopts process for un-metal material, as ABS material processing.The structure of lower box 9 realizes joint at needs by screw be provided with screw thread and inlay circle, screw thread is inlayed circle for Heng Nawei Hardware Products Co., Ltd. of Shenzhen and is produced.

keyboard holder 14

Shown in Fig. 4 F, keyboard holder 14 is provided with transverse slat 14A and riser 14B, and described transverse slat 14A is provided with lamina lucida 14C, and the below of this lamina lucida 14C is placed with LCD display 10C.Described transverse slat 14A is provided with rectangular through-hole 14A1, and this rectangular through-hole 14A1 is used for USB flash disk interface equipment and passes.

In the present invention, keyboard holder 14 adopts process for un-metal material, as polyrethane soft foam matrials processing.Keyboard holder 14 arranges keyboard for convenience, also directly can process on the top plate of keyboard holder 14 by the button of keyboard.

packing casing cell arrangement

Shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 D, Fig. 1 E, Fig. 1 F, Fig. 5, Fig. 5 A ~ Fig. 5 N, packing casing cell arrangement includes top cover 3, first sleeve 4, link 5, second sleeve 6, base 7, power box end cap 15.

top cover 3

Shown in Fig. 5 C, top cover 3 is provided with CA contraction section 3A, CA raised section 3B, CB contraction section 3C and cavity 3D; CA contraction section 3A is for placing the convex platform 11D of the first seal ring 11; CB contraction section 3C is for placing the lower convex platform 11E of the first seal ring 11; CA raised section 3B is for placing the inner groovy 11A of the first seal ring 11; The lower end surface 3E of top cover 3 contacts with the flange 11C of the first seal ring 11.The inside of top cover 3 is cavity 3D.

In the present invention, top cover 3 adopts process for un-metal material, as nylon 6 material processing.

first sleeve 4

Shown in Fig. 5 E, the middle part of the first sleeve 4 is DA through hole 4A, and one end of the first sleeve 4 is provided with DA baffle ring 4B, the lower end in contact of DA baffle ring 4B and the 3rd sleeve 12, and DA baffle ring 4B is used for supporting the 3rd sleeve 12.

In the present invention, the first sleeve 4 adopts aluminum alloy material to process, as 2A12-T4 materials processing.

first seal ring 11

Shown in Fig. 5 D, the inwall of the first seal ring 11 is provided with convex platform 11D, inner groovy 11A, lower convex platform 11E; The outer wall of the first seal ring 11 is provided with outer lug 11B.Convex platform 11D is arranged on the CA contraction section 3A of top cover 3; Lower convex platform 11E is arranged on the CB contraction section 3C of top cover 3; The CA raised section 3B of top cover 3 is installed in inner groovy 11A; The upper contraction section 12B of outer lug 11B and the 3rd sleeve 12 is drive fit, reaches the effect of sealing.

In the present invention, the first seal ring 11 is designed to the two way sealed lipped configuration of two ends boss central slot, and this is conducive to sealability.First seal ring 11 adopts natural rubber material to process.

3rd sleeve 12

Shown in Fig. 5 K, the upper end of the 3rd sleeve 12 is provided with contraction section 12B, and the lower end of the 3rd sleeve 12 is provided with lower contraction section 12A; The inwall of the 3rd sleeve 12 is provided with inner convex platform 12C and lower inner convex platform 12D, and be internal projecting ring 12E between upper inner convex platform 12C and lower inner convex platform 12D, this internal projecting ring 12E coordinates with the CA raised section of top cover 3, and the end face of lower inner convex platform 12D is for supporting the lower end of top cover 3.The first seal ring 11 is socketed with between upper contraction section 12B and top cover 3.

In the present invention, the 3rd sleeve 12 adopts process for un-metal material, as PPS materials processing.

link 5

Shown in Fig. 5 F, Fig. 5 G, the middle part of link 5 is EA through hole 5A; The upper end of link 5 is provided with EA contraction section 5B, EA raised section 5C, EB raised section 5C, is EA groove 5E between EA raised section 5C and EB raised section 5C; This EA groove 5E is for placing the lower end of the first sleeve 4; The lower end of link 5 is provided with 5F, ED raised section, EC raised section 5G, is EB groove 5H between EC raised section 5F and ED raised section 5G; This EB groove 5H is for placing the upper end of the second sleeve 6.

In the present invention, link 5 adopts process for un-metal material, as PPS materials processing.

second seal ring 13

Shown in Fig. 5 D, the inwall of the second seal ring 13 is provided with convex platform 13D, inner groovy 13A, lower convex platform 13E; The outer wall of the second seal ring 13 is provided with outer lug 13B.Convex platform 13D is arranged on the CA contraction section 3A of the 3rd sleeve 12; Lower convex platform 13E is arranged on the CB contraction section 3C of the 3rd sleeve 12; The CA raised section 3B of top cover 3 is installed in inner groovy 11A; Outer lug 11B and the 3rd sleeve 12.

In the present invention, the second seal ring 13 is designed to the two way sealed lipped configuration of two ends boss central slot, and this is conducive to sealability.Second seal ring 13 adopts natural rubber material to process.

second sleeve 6

Shown in Fig. 5 F, Fig. 5 G, the upper end of the second sleeve 6 is provided with FA contraction section 6B, FA raised section 6C; The lower end of the second sleeve 6 is provided with FB contraction section 6E, FB raised section 6D; The cylindrical shell 6A of the second sleeve 6 is provided with FA through hole 6A1 and power box 6F; This FA through hole 6A1 is for installing one-way valve 10M.This power box 6F for install the present invention design intelligent valve positioner needed for power apparatus.Power box 6F is fixed with power box end cap 15 by screw.The two ends of power box 6F are respectively equipped with a-power supply joint 10N for being connected with external power supply and B-source joint 10P.

In the present invention, the second sleeve 6 adopts process for un-metal material, as PPS materials processing.

base 7

Shown in Figure 1B, Fig. 1 C, Fig. 1 D, Fig. 5 L, base 7 is formed in one structure.The middle part of base 7 is provided with base plate 7G and GC through hole 7F, GC through hole 7F is for placing displacement measurement link 1B, and base plate 7G is provided with GE gas port 7G1, GF gas port 7G2, GG gas port 7G3, GH gas port 7G4, GA and supports annulus 7H, GE supporting post 7G5, GF supporting post 7G6, GG supporting post 7G7; GE gas port 7G1 is communicated with through GA air guide channel 7-1 with GA gas port 7D1; GF gas port 7G2 is communicated with through GB air guide channel 7-2 with GB gas port 7D2; GG gas port 7G3 is communicated with through GC air guide channel 7-3 with GC gas port 7D3; GH gas port 7G4 is communicated with through GD air guide channel 7-4 with GD gas port 7D4; GA supports annulus 7H and is provided with GH supporting post 7H1 and GI supporting post 7H2; This GH supporting post 7H1 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.This GI supporting post 7H2 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GE supporting post 7G5 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GF supporting post 7G6 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GG supporting post 7G7 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.

The upper end of base 7 is provided with annulus 7A, GA outer toroid 7B in GA, and is GA groove 7C between annulus 7A and GA outer toroid 7B in GA; Lower end and the 4th seal ring 10H of the second sleeve 6 is placed with in described GA groove 7C.In described GA, the internal face of annulus 7A is provided with GA supporting post 71, GB supporting post 72, GC supporting post 73, GD supporting post 74; GA supporting post 71 is provided with tapped hole, and GA supporting post 71 is socketed in the AA supporting post 1A1A of changeable displacement measuring bracket 1A, by A screw 10I through after the AA through hole 1A1A1 of AA supporting post 1A1A, is threaded in the tapped hole of GA supporting post 71.GA supporting post 71 measures the AA supporting post 1A1A of support 1A for bracing displacement.GB supporting post 72 is provided with tapped hole, and GB supporting post 72 is socketed in the AB supporting post 1A1B of changeable displacement measuring bracket 1A, by B screw 10J through after the AB through hole 1A1B1 of AB supporting post 1A1B, is threaded in the tapped hole of GB supporting post 72.GB supporting post 72 measures the AB supporting post 1A1B of support 1A for bracing displacement.GC supporting post 73 is provided with tapped hole, and GC supporting post 73 is socketed in the AC supporting post 1A1C of changeable displacement measuring bracket 1A, by C screw 10K through after the AC through hole 1A1C1 of AC supporting post 1A1C, is threaded in the tapped hole of GC supporting post 73.GC supporting post 73 measures the AC supporting post 1A1C of support 1A for bracing displacement.GD supporting post 74 is provided with tapped hole, and GD supporting post 74 is socketed in the AD supporting post 1A1D of changeable displacement measuring bracket 1A, by D screw 10L through after the AD through hole 1A1D1 of AD supporting post 1A1D, is threaded in the tapped hole of GD supporting post 74.GD supporting post 74 measures the AD supporting post 1A1D of support 1A for bracing displacement.

The lower end of base 7 is annulus pedestal 7E, and annulus pedestal 7E is provided with GA through hole 7E1, GB through hole 7E2 and gas circuit connected component 7D; GA through hole 7E1 presses closer screw 1D for placing AB; GB through hole 7E2 presses closer screw 1C for placing AA.

Gas circuit connected component 7D is provided with GA gas port 7D1, GB gas port 7D2, GC gas port 7D3, GD gas port 7D4, GA blind hole 7D-1, GB blind hole 7D-2, GC blind hole 7D-3, GD blind hole 7D-4, GE blind hole 7D-5, GF blind hole 7D-6.BA screw thread is installed in GA blind hole 7D-1 and inlays circle 2S, BB screw thread is installed in GB blind hole 7D-2 and inlays circle 2T, BC screw thread is installed in GC blind hole 7D-3 and inlays circle 2U, BD screw thread is installed in GD blind hole 7D-4 and inlays circle 2V, BE screw thread is installed in GE blind hole 7D-5 inlay in circle 2W, GF blind hole 7D-6 and BF screw thread is installed inlays circle 2X.

The lower end surface of the base plate 7G of base 7 is provided with the AB opening slot 7E4 for placing AA square nut 1C2 and the AA opening slot 7E3 for placing AB square nut 1D2.The lower end surface of the base plate 7G of base 7 is provided with four supporting posts, and these four supporting posts are for realizing the positioning work piece of the present invention's design and the fixing of outside platform.

In the present invention, base 7 adopts process for un-metal material, as PPS materials processing.The structure of base 7 realizes joint at needs by screw be provided with screw thread and inlay circle, screw thread is inlayed circle for Heng Nawei Hardware Products Co., Ltd. of Shenzhen and is produced.

Claims

1. a circular intelligent valve positioner, is characterized in that: it includes linear movement measuring cell arrangement 1, pneumatic unit device 2, display encapsulation unit device and packing casing cell arrangement.

Linear movement measuring cell arrangement 1 includes linear displacement transducer 10A, changeable displacement measuring bracket 1A, displacement measurement link 1B and presses closer screw 1C, AB for the AA that fixed displacement measures link 1B and presses closer screw 1D, AA square nut 1C2, AB square nut 1D2.

Changeable displacement measuring bracket 1A is formed in one structure.The middle part of changeable displacement measuring bracket 1A is provided with through hole 1A1F and dividing plate 1A6; This through hole 1A1F is used for linear displacement transducer 10A and passes.

Displacement measurement link 1B is formed in one structure.The center of displacement measurement link 1B is provided with AE through hole 1B5, and one end that this AE through hole 1B5 is used for linear displacement transducer 10A is passed, and linear displacement transducer 10A is arranged on the AA end plates 1B4 of displacement measurement link 1B.Displacement measurement link 1B is provided with AA boss 1B1, AB boss 1B2, AC boss 1B3; AA groove 1B6 between AA boss 1B1 and AB boss 1B21; AB groove 1B7 between AB boss 1B2 and AC boss 1B3; Described AA groove 1B6 presses closer screw 1C and AB press closer screw 1D for placing AA, presses closer screw 1C and AB press closer screw 1D and realize the fixing of displacement measurement link 1B and base 7 by AA; Described AB groove 1B7 is for placing AC seal ring 1E.

Pneumatic unit device 2 includes solenoid valve group 10F, gas circuit base plate 2A, aeroscopic plate 2B and gas source connector.Solenoid valve group 10F is arranged on the top plate 2A-1 of gas circuit base plate 2A.

Gas circuit base plate 2A is formed in one structure.Gas circuit base plate 2A is provided with BA gas channels 2A1, BB gas channels 2A2, BC gas channels 2A3, BD gas channels 2A4, BE gas channels 2A5, BF gas channels 2A6, BG gas channels 2A7, BH gas channels 2A8, BI gas channels 2A9; And BF gas channels 2A6, BG gas channels 2A7, BH gas channels 2A8 and BI gas channels 2A9 is positioned on lower panel 2A-2; BA gas channels 2A1 and BC gas channels 2A3 conducting; BB gas channels 2A2 and BF gas channels 2A6 conducting; BD gas channels 2A4 and BH gas channels 2A8 conducting; BE gas channels 2A5 and BI gas channels 2A9 conducting.

Aeroscopic plate 2B is provided with the through hole (i.e. BF through hole 2B1A, BG through hole 2B1B, BH through hole 2B1C, BI through hole 2B1D) that passes through for source of the gas and the countersunk head through hole (i.e. BA countersunk head through hole 2B2A, BB countersunk head through hole 2B2B, BC countersunk head through hole 2B2C, BD countersunk head through hole 2B2D, BE countersunk head through hole 2B2E, BF countersunk head through hole 2B2F) for mounting screw.

Display encapsulation unit device includes upper box 8, lower box 9, keyboard holder 14.The transverse slat 14A of keyboard holder 14 is arranged on the top of upper box 8, and the riser 14B of keyboard holder 14 is arranged on lower box 9.

Upper box 8 is formed in one structure.The top plate 8A of upper box 8 is provided with HA rectangular through-hole 8A1, HB rectangular through-hole 8A3, thread hole 8A2; This HA rectangular through-hole 8A1 place is for installing LCD display 10C

Lower box 9 is formed in one structure.The dunnage 9A of lower box 9 is provided with stiffening rib 9A1, countersunk head chamber 9A2, HC rectangular through-hole 9A3; The casing ring 9B outer wall of lower box 9 is provided with IA restraining groove 9-1 and IB restraining groove 9-2, and HA lock dog 8D is placed in the IA restraining groove 9-1 of lower box 9, and HB lock dog 8E is placed in the IB restraining groove 9-2 of lower box 9.

Keyboard holder 14 is provided with transverse slat 14A and riser 14B, and described transverse slat 14A is provided with lamina lucida 14C, and the below of this lamina lucida 14C is placed with LCD display 10C.Described transverse slat 14A is provided with rectangular through-hole 14A1, and this rectangular through-hole 14A1 is used for USB flash disk interface equipment and passes.

Packing casing cell arrangement includes top cover 3, first sleeve 4, link 5, second sleeve 6, base 7, power box end cap 15.

Top cover 3 is provided with CA contraction section 3A, CA raised section 3B, CB contraction section 3C and cavity 3D; CA contraction section 3A is for placing the convex platform 11D of the first seal ring 11; CB contraction section 3C is for placing the lower convex platform 11E of the first seal ring 11; CA raised section 3B is for placing the inner groovy 11A of the first seal ring 11; The lower end surface 3E of top cover 3 contacts with the flange 11C of the first seal ring 11.The inside of top cover 3 is cavity 3D.

The middle part of the first sleeve 4 is DA through hole 4A, and one end of the first sleeve 4 is provided with DA baffle ring 4B, the lower end in contact of DA baffle ring 4B and the 3rd sleeve 12, and DA baffle ring 4B is used for supporting the 3rd sleeve 12.

The inwall of the first seal ring 11 is provided with convex platform 11D, inner groovy 11A, lower convex platform 11E; The outer wall of the first seal ring 11 is provided with outer lug 11B.Convex platform 11D is arranged on the CA contraction section 3A of top cover 3; Lower convex platform 11E is arranged on the CB contraction section 3C of top cover 3; The CA raised section 3B of top cover 3 is installed in inner groovy 11A; The upper contraction section 12B of outer lug 11B and the 3rd sleeve 12 is drive fit, reaches the effect of sealing.

The upper end of the 3rd sleeve 12 is provided with contraction section 12B, and the lower end of the 3rd sleeve 12 is provided with lower contraction section 12A; The inwall of the 3rd sleeve 12 is provided with inner convex platform 12C and lower inner convex platform 12D, and be internal projecting ring 12E between upper inner convex platform 12C and lower inner convex platform 12D, this internal projecting ring 12E coordinates with the CA raised section of top cover 3, and the end face of lower inner convex platform 12D is for supporting the lower end of top cover 3.The first seal ring 11 is socketed with between upper contraction section 12B and top cover 3.

The middle part of link 5 is EA through hole 5A; The upper end of link 5 is provided with EA contraction section 5B, EA raised section 5C, EB raised section 5C, is EA groove 5E between EA raised section 5C and EB raised section 5C; This EA groove 5E is for placing the lower end of the first sleeve 4; The lower end of link 5 is provided with 5F, ED raised section, EC raised section 5G, is EB groove 5H between EC raised section 5F and ED raised section 5G; This EB groove 5H is for placing the upper end of the second sleeve 6.

The upper end of the second sleeve 6 is provided with FA contraction section 6B, FA raised section 6C; The lower end of the second sleeve 6 is provided with FB contraction section 6E, FB raised section 6D; The cylindrical shell 6A of the second sleeve 6 is provided with FA through hole 6A1 and power box 6F; This FA through hole 6A1 is for installing one-way valve 10M.This power box 6F for install the present invention design intelligent valve positioner needed for power apparatus.Power box 6F is fixed with power box end cap 15 by screw.The two ends of power box 6F are respectively equipped with a-power supply joint 10N for being connected with external power supply and B-source joint 10P.

The middle part of base 7 is provided with base plate 7G and GC through hole 7F, GC through hole 7F is for placing displacement measurement link 1B, and base plate 7G is provided with GE gas port 7G1, GF gas port 7G2, GG gas port 7G3, GH gas port 7G4, GA and supports annulus 7H, GE supporting post 7G5, GF supporting post 7G6, GG supporting post 7G7; GE gas port 7G1 is communicated with through GA air guide channel 7-1 with GA gas port 7D1; GF gas port 7G2 is communicated with through GB air guide channel 7-2 with GB gas port 7D2; GG gas port 7G3 is communicated with through GC air guide channel 7-3 with GC gas port 7D3; GH gas port 7G4 is communicated with through GD air guide channel 7-4 with GD gas port 7D4; GA supports annulus 7H and is provided with GH supporting post 7H1 and GI supporting post 7H2; This GH supporting post 7H1 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.This GI supporting post 7H2 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GE supporting post 7G5 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GF supporting post 7G6 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.GG supporting post 7G7 is provided with blind hole, and is provided with screw thread in blind hole and inlays circle, and this screw thread inlays circle for being connected with screw.

2. circular intelligent valve positioner according to claim 1, is characterized in that: changeable displacement measuring bracket 1A adopts process for un-metal material, as plastics, PC material, PVC material, ABS material etc.

3. circular intelligent valve positioner according to claim 1, is characterized in that: displacement measurement link 1B adopts aluminum alloy material processing, as 2A12-T4 materials processing.

4. circular intelligent valve positioner according to claim 1, is characterized in that: upper box 8 and lower box 9 adopt process for un-metal material, as ABS material processing.

5. circular intelligent valve positioner according to claim 1, is characterized in that: top cover 3 adopts process for un-metal material, as nylon 6 material processing.