CN110319220A - Dual-valve body blind pipe drives core pipe valve - Google Patents

Dual-valve body blind pipe drives core pipe valve Download PDF

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Publication number
CN110319220A
CN110319220A CN201810272357.3A CN201810272357A CN110319220A CN 110319220 A CN110319220 A CN 110319220A CN 201810272357 A CN201810272357 A CN 201810272357A CN 110319220 A CN110319220 A CN 110319220A
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CN
China
Prior art keywords
sleeve
valve
pipe
blind pipe
valve body
Prior art date
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Withdrawn
Application number
CN201810272357.3A
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Chinese (zh)
Inventor
卢星霖
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Individual
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Individual
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Priority to CN201810272357.3A priority Critical patent/CN110319220A/en
Publication of CN110319220A publication Critical patent/CN110319220A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/312—Line blinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

Dual-valve body blind pipe of the invention drives core pipe valve, and the valve core tube for being wrapped in outer valve inner cavity is the coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of fixing piece；There is axial interlayer in the middle part of valve core tube, the axially adjacent both sides of interlayer are at least one recirculation hole of input section and deferent segment respectively；Ring-shaped valve seats around at least one sleeve throat of the annular spool and sleeve I and sleeve II of interlayer constitutes sealing pair；Input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates the setting of its at least one engaging portion to seal；Ripple blind pipe is axially set between at least one sleeve end face of sleeve I and sleeve II and corresponding outer valve inner face, preceding pressure, the rear pressure of valve or the ripple blind pipe of valve are penetrated through full of driving medium by channel；Under the effect of both direction potential energy, valve body is relative to valve core tube in the mobile realization opening and closing of outer body cavity axial reciprocating and power and energy.It is safe, reliable, efficient, multi-functional.

Description

Dual-valve body blind pipe drives core pipe valve
Technical field
Dual-valve body blind pipe driving core pipe valve belongs to valve field, is double in the core pipe stem nut series of my original invention The subfamily of valve body core pipe valve plate block is related to pressure opening and closing valve, check-valves, safety valve, regulating valve, pressure reducing valve, pulse valve, urgent Stop valve, isolating valve and two-way booster automatic stop valve.
Background technique
Currently, without a kind of valve mechanism can be related to pressure opening and closing valve, opening and closing valve, check-valves, safety valve, regulating valve, Pressure reducing valve, pulse valve, quick action emergency valve, isolating valve and two-way booster automatic stop valve.
Summary of the invention
The object of the present invention is to provide dual-valve body blind pipes to drive core pipe valve, meets production, safety and the section of extraordinary operating condition The needs of energy.
Dual-valve body blind pipe driving core pipe valve is mainly technically characterized by: the valve core tube for being wrapped in outer valve inner cavity is solid Determine the coaxial sleeve II through the sleeve I of valve body, body cavity and valve body of part；There is axial interlayer in the middle part of valve core tube, every Layer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation；The axially adjacent both sides of interlayer be respectively input section and At least one recirculation hole of deferent segment；Annular spool and at least one sleeve throat of sleeve I and sleeve II around interlayer Ring-shaped valve seats constitutes sealing pair；Input section and sleeve I and deferent segment and sleeve II are that shaft hole mode cooperates its at least one engaging portion Setting sealing；Axially setting is sharp between at least one sleeve end face of sleeve I and sleeve II and corresponding outer valve inner face With the ripple blind pipe of driving medium；Difference >=0 of the outer diameter of the outer diameter and deferent segment of input section；In the effect of both direction potential energy Under, valve body is in the mobile realization opening and closing of outer body cavity axial reciprocating, power and energy.
Axially it is arranged between at least one sleeve end face of the sleeve I and sleeve II and corresponding outer valve inner face Ripple blind pipe penetrates through the preceding pressure of valve by communicating pipe.
The ripple blind pipe being axially arranged between I end face of sleeve and corresponding outer valve inner face is passed through by communicating pipe The preceding pressure of port valve, the ripple blind pipe being axially arranged between II end face of sleeve and corresponding outer valve inner face are passed through by communicating pipe The rear pressure of port valve.
The ripple blind pipe and at least one ripple blind pipe of ripple blind pipe pass through the duct through-lumen of valve body hollow out.
The ripple blind pipe and at least one ripple blind pipe of ripple blind pipe injection driving medium.
Ripple blind pipe injection driving medium is compressed air, tap water, industry oil etc., equipment can be inflator, Micro-compressor, miniature hydraulic pump, tap water pipe line；Injection drives medium if it is closing valve, then, bleed off driving medium It is exactly Open valve, vice versa；Ripple blind pipe injecting compressed air can form air spring, can be applied to open and close, It can be applied to regulating valve, quick action emergency valve etc.；Compressed air can also be bled off, liquid such as tap water is then filled with, liquid is It is incompressible, in this way, being just positioned at closing or unlatching.
Between at least one sleeve end face of I end face of sleeve and II end face of sleeve and corresponding outer valve inner face Axial setting compressed spring.
The engaging portion of the input section and sleeve I and deferent segment and sleeve II is respectively provided with bellows seal and sealing ring, One communicating pipe penetrated through the inner cavity of two bellows seals, to mitigate opening and closing resistance.
The interlayer is made of the intermediate pipeline section of the valve core tube of kernel and kernel radial radiation, can be it is integrated, can also To be that kernel is axially forced to two of valve core tube parts and is constituted；Two axial end faces of the interlayer kernel are ligulate triangle slopes Conveyance capacity is improved from interflow is diverted in face to greatest extent, realizes that medium flow direction is steady, flow resistance is small, low pressure loss；In interlayer Two axial end faces of core can be spherical surface, is also possible to arc lower guide surface, can also be plane, concave surface and the conical surface.
Control valve can be set in the middle part of the communicating pipe.
Ball is set between the annular inner wall of the outer valve and the annular outer wall of valve body.
At least one sleeve of the sleeve I and sleeve II has a liner of tubular, tubular liner be located at sleeve throat just with Ring-shaped valve seats is integrally formed.
The internal diameter of the ripple blind pipe of the preceding pressure of the perforation valve is less than the internal diameter of the ripple blind pipe of the rear pressure of perforation valve, can be with Form stream of pulses.
In conclusion dual-valve body blind pipe driving core pipe valve of the invention has the active effect that
1, structure is simple, convenient for manufacture；
2, without external leakage；
3, ring packing valve seat and annular spool are axial straight contacts, few to rub, and sealing effect is good；
4, long service life, cost performance are high；
5, extraordinary operating condition is adapted to；
6, valve body is turned off formula to medium flow field as opening and closing element when closing valve, and opening and closing resistance is small；
Even if operability can be still good 7, under high-pressure medium state；
8, safety, highly reliable.
Detailed description of the invention
Attached drawing 1,2 is the full the schematic diagram of the section structure in longitudinal direction of first embodiment of the invention.
Attached drawing 3,4 is the full the schematic diagram of the section structure in longitudinal direction of second embodiment of the invention.
Attached drawing 5,6 is the full the schematic diagram of the section structure in longitudinal direction of third embodiment of the invention.
Attached drawing 7,8 is the full the schematic diagram of the section structure in longitudinal direction of four embodiment of the invention.
Attached drawing 9,10 is the full the schematic diagram of the section structure in longitudinal direction of fifth embodiment of the invention.
Attached drawing 11,12 is the full the schematic diagram of the section structure in longitudinal direction of sixth embodiment of the invention.
Attached drawing 13,14 is the full the schematic diagram of the section structure in longitudinal direction of seventh embodiment of the invention.
Attached drawing 15,16 is the full the schematic diagram of the section structure in longitudinal direction of eighth embodiment of the invention.
Attached drawing 17,18 is the full the schematic diagram of the section structure in longitudinal direction of ninth embodiment of the invention.
Attached drawing 19,20 is the full the schematic diagram of the section structure in longitudinal direction of tenth embodiment of the invention.
Attached drawing 21,22 is the full the schematic diagram of the section structure in longitudinal direction of eleventh embodiment of the invention.
Attached drawing 23,24 is the full the schematic diagram of the section structure in longitudinal direction of twelveth embodiment of the invention.
Attached drawing 25,26 is the full the schematic diagram of the section structure in longitudinal direction of thirteenth embodiment of the invention.
Attached drawing 27,28 is the full the schematic diagram of the section structure in longitudinal direction of fourteenth embodiment of the invention.
Attached drawing 29,30,31 is the full the schematic diagram of the section structure in longitudinal direction of fifteenth embodiment of the invention.
Attached drawing 32,33 is the full the schematic diagram of the section structure in longitudinal direction of sixteenth embodiment of the invention.
Attached drawing 34,35 is the full the schematic diagram of the section structure in longitudinal direction of seventeenth embodiment of the invention.
Attached drawing 36,37,38,39 is the full the schematic diagram of the section structure in longitudinal direction of eighteenth embodiment of the invention.
Attached drawing 40,41 is the full the schematic diagram of the section structure in longitudinal direction of nineteenth embodiment of the invention.
Attached drawing 42,43 is the full the schematic diagram of the section structure in longitudinal direction of twentieth embodiment of the invention.
Attached drawing 44,45,46 is the full the schematic diagram of the section structure in longitudinal direction of 21st embodiment of the invention.
1- valve core tube, 1 '-input section, 1 in figure "-deferent segment, 100- interlayer, 100 '-ligulate triangle slope surfaces, 101- Annular spool, 103- recirculation hole, 2- valve body, 2 '-sleeve I, 2 "-sleeve II, the inner cavity 200-, 200 "-ducts, 201- annular plate valve Seat, 202- ripple blind pipe, 202 '-ripple blind pipes, 300- bellows seal, 302- sealing ring, 4- compressed spring, 600- connect Siphunculus, 601- communicating pipe, 602- communicating pipe, 605- control valve, 707- ball, 8- outer valve, 8 '-inner cavities.
Specific embodiment
Embodiment general character summary:
The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve be the coaxial sleeve I 2 through valve body 2 of fixing piece ', valve 2 inner cavity 200 of body and valve body 2 sleeve II 2 "；There is axial interlayer 100 in the middle part of valve core tube 1, interlayer 100 is by kernel and kernel diameter It is constituted to the intermediate pipeline section of the valve core tube 1 of radiation；The axially adjacent both sides of interlayer 100 are input section 1 ' and deferent segment 1 respectively " At least one radial recirculation hole 103；The sealing surface and sleeve I 2 ' and sleeve II 2 of the annular spool 101 of circular interlayer 100 are " extremely The ring-shaped valve seats 201 of a few sleeve throat constitutes sealing pair；Input section 1 ' is with sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Shaft hole mode cooperates its engaging portion to be respectively provided with sealing；Sleeve I 2 ' and sleeve II 2 " at least one sleeve end face with it is corresponding outer Ripple blind pipe is set between 8 inner face of valve body, wherein I 2 ' end face of sleeve is ripple blind pipe 202, and " end face is ripple to sleeve II 2 Blind pipe 202 '；Ripple blind pipe is communicated with medium or is filled with driving medium by channel.
Embodiment one
Referring to attached drawing 1,2, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for pressure opening and closing, non-return, peace Entirely；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through valve body perpendicular to ground 2 sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；There are axial interlayer 100, interlayer 100 in the middle part of valve core tube 1 Two axial end faces of kernel are ligulate triangle slope surfaces 100 '；The axially adjacent both sides of interlayer 100 are input section 1 ' and defeated respectively Section 1 out " two radial recirculation holes 103；The sealing surface of annular spool 101 is two-way slope surface and the sleeve II 2 " annular plate valve of throat Seat 201 constitutes sealing pair；Input section 1 ' is that shaft hole mode cooperates its engaging portion to be all provided with sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Set bellows seal 300；Ripple blind pipe 202 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, Ripple blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600；Sleeve II 2 " has the liner of tubular；The annular inner wall of outer valve 8 with Ball 707 is set between the annular outer wall of valve body 2.
It is opened and closed for pressure:
It is open state, at this point, pipe network pressure medium reaches requirements, Jie of 202 inner cavity of ripple blind pipe shown in attached drawing 1 Matter pressure initiation is greater than the self weight of valve body 2 to the thrust of I 2 ' end face of sleeve, and valve body 2 is axial to be moved up, " the annular of throat of sleeve II 2 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
It shown in attached drawing 2, is in off state, pipe network medium is lower than requirements, since the self weight of valve body 2 is greater than ripple blind pipe The pressure initiation of 202 inner cavity media is to the thrust of I 2 ' end face of sleeve, and valve body 2 is axial to be moved down, " the ring-shaped valve seats of throat of sleeve II 2 201 are closely affixed with annular spool 101, close valve.
For non-return:
It is open state shown in attached drawing 1, at this point, pipe network pressure medium is normal, the pressure medium of 202 inner cavity of ripple blind pipe The self weight for being greater than valve body 2 to the thrust of I 2 ' end face of sleeve is formed, valve body 2 is axial to be moved up, " the ring-shaped valve seats of throat of sleeve II 2 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
It shown in attached drawing 2, is in off state, pipe network medium subnormal pressure or upstream lose pressure source, due to valve body 2 Self weight be greater than the pressure initiation of 202 inner cavity medium of ripple blind pipe to the thrust of I 2 ' end face of sleeve, valve body 2 is axial to be moved down, sleeve II 2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed, and medium is flow backwards in cutting downstream.
For safety:
It is open state, at this point, pipe network pressure medium superelevation, the pressure medium of 202 inner cavity of ripple blind pipe shown in attached drawing 1 The self weight for being greater than valve body 2 to the thrust of I 2 ' end face of sleeve is formed, valve body 2 is axial to be moved up, " the ring-shaped valve seats of throat of sleeve II 2 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, superpressure medium release.
It shown in attached drawing 2, is in off state, pipe network pressure medium is normal, since the self weight of valve body 2 is greater than ripple blind pipe 202 The pressure initiation of inner cavity medium is to the thrust of I 2 ' end face of sleeve, and valve body 2 is axial to be moved down, " the ring-shaped valve seats 201 of throat of sleeve II 2 It is closely affixed with annular spool 101.
Embodiment two
Referring to attached drawing 3,4, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for safety, non-return；The interlayer Two axial end faces of 100 kernels are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes for input section 1 ' and deferent segment 1 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' is respectively provided with bellows seal 300 with the engaging portion of sleeve I 2 ' and deferent segment 1 " and sleeve II 2 "；I 2 ' end face of sleeve and phase Ripple blind pipe 202 is axially set between corresponding 8 inner face of outer valve, before ripple blind pipe 202 penetrates through valve by communicating pipe 600 Pressure；" compressed spring 4 is axially arranged between end face and corresponding 8 inner face of outer valve in sleeve II 2；Sleeve II 2 " has tubular Liner；Ball 707 is set between the annular inner wall of outer valve 8 and the annular outer wall of valve body 2.
For safety:
It shown in attached drawing 3, is in off state, pipe network pressure medium is normal, since the elastic force of compressed spring 4 is greater than ripple blind pipe For the pressure initiation of 202 inner cavity media to the thrust of I 2 ' end face of sleeve, valve body 2 is in the closed position always, and sleeve II 2 be " throat Ring-shaped valve seats 201 is closely affixed with annular spool 101.
It is open state, at this point, pipe network pressure medium superelevation, the pressure medium of 202 inner cavity of ripple blind pipe shown in attached drawing 4 It is formed to the thrust superelevation of I 2 ' end face of sleeve in the elastic force of compressed spring 4, valve body 2 is to deferent segment 1 " direction is mobile, sleeve II 2 " The ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, The release of superpressure medium.
For non-return:
Shown in attached drawing 3, it is in off state, when pipe network pressure medium subnormal pressure and upstream lose pressure source, due to The elastic force of compressed spring 4 keeps valve body 2 mobile to 1 ' direction of input section, " the ring-shaped valve seats 201 and annular spool of throat of sleeve II 2 101 are closely affixed, and prevent medium from flowing backwards.
It is open state, pipe network pressure medium is normal, the pressure initiation pair of 202 inner cavity medium of ripple blind pipe shown in attached drawing 4 The thrust of I 2 ' end face of sleeve is greater than the elastic force of compressed spring 4, and valve body 2 is in the open position always, " the annular of throat of sleeve II 2 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
Embodiment three
Referring to attached drawing 5,6, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for opening and closing and adjusting；It is described every Two axial end faces of 100 kernel of layer are ligulate triangle slope surfaces 100 '；" there are two radial circulations for input section 1 ' and deferent segment 1 Hole 103；The sealing surface for surrounding and being embedded in the annular spool 101 of interlayer 100 is two-way slope surface and II 2 " throat of sleeve I 2 ' and sleeve Ring-shaped valve seats 201 constitute sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are respectively provided with Bellows seal 300；Ripple blind pipe 202, wave are axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve Line blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600, and control valve 605 is arranged in the middle part of communicating pipe 600；Sleeve II 2 " end face with Compressed spring 4 is axially set between corresponding 8 inner face of outer valve.
It is open state shown in attached drawing 5, pipe network pressure medium is normal, control valve 605 is opened, 202 inner cavity of ripple blind pipe Pressure medium forms the elastic force for being greater than compressed spring 4 to the thrust of I 2 ' end face of sleeve, and " direction is mobile, sleeve to deferent segment 1 for valve body 2 The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200 Perforation, flow of media.
It is adjustment state shown in attached drawing 6, pipe network pressure medium is higher, and the pressure medium of 202 inner cavity of ripple blind pipe is formed pair The thrust of I 2 ' end face of sleeve is higher than the elastic force of compressed spring 4, and valve body 2 continues to deferent segment 1 " direction is mobile, sleeve I 2 ' ring The recirculation hole 103 that shape inner wall has covered input section 1 ' is most of, reduces the flow and pressure of medium, plays the role of adjusting.
Example IV
Referring to attached drawing 7,8, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for emergency cut-off；The interlayer Two axial end faces of 100 kernels are spherical surfaces；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and embedding 101 sealing surface of annular spool for entering interlayer 100 is that " ring-shaped valve seats 201 of throat is equal for arc slope and sleeve I 2 ' and sleeve II 2 Constitute sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；Ripple blind pipe 202 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, ripple blind pipe 202 passes through The preceding pressure of the perforation of communicating pipe 600 valve；" compressed spring 4 is arranged in sleeve II 2 between end face and corresponding 8 inner face of outer valve；Sleeve Pipe I 2 ' and sleeve II 2 " have the liner of tubular；Ball is set between the annular inner wall of outer valve 8 and the annular outer wall of valve body 2 707。
It is open state shown in attached drawing 7, pipe network pressure medium is normal, and the pressure medium of 202 inner cavity of ripple blind pipe is formed pair The thrust of I 2 ' end face of sleeve is greater than the elastic force of compressed spring 4, and valve body 2 is in the open position always, " the annular of throat of sleeve II 2 Valve seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
It is Abnormal Shutdown state shown in attached drawing 8, at this point, pipe network pressure medium exception superelevation, 202 inner cavity of ripple blind pipe Pressure medium is formed to the thrust superelevation of I 2 ' end face of sleeve in the elastic force of compressed spring 4, and valve body 2 is to deferent segment 1 " direction is mobile, The ring-shaped valve seats 201 of I 2 ' throat of sleeve is closely affixed with annular spool 101, emergency cut-off pressure source, prevents hyperpressure medium Into downstream, prevent equipment and pipeline from wrecking, personnel and environment are on the hazard；When pipe network pressure medium restores normally, to press The elastic force of contracting spring 4 will push the axial return of valve body 2, in the open state.
Embodiment five
Referring to attached drawing 9,10, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for emergency cut-off；The package In 8 inner cavity 8 ' of outer valve valve core tube 1 be fixing piece perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', 2 inner cavity 200 of valve body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '； " there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；It surround and is embedded in the sealing of the annular spool 101 of interlayer 100 Face is that " ring-shaped valve seats 201 of throat constitutes sealing pair for two-way slope surface and sleeve I 2 ' and sleeve II 2；Input section 1 ' and sleeve I 2 ' and the engaging portion of deferent segment 1 " with sleeve II 2 " be respectively provided with bellows seal 300；Sleeve II 2 " end face with it is corresponding outer Ripple blind pipe 202 ' is axially set between 8 inner face of valve body, and ripple blind pipe 202 ' penetrates through the preceding pressure of valve by communicating pipe 601；Sleeve Compressed spring 4 is axially set between I 2 ' end face of pipe and corresponding 8 inner face of outer valve.
It is open state, pipe network pressure medium is normal, and the pressure medium of 202 ' inner cavity of ripple blind pipe is formed shown in attached drawing 9 To sleeve II 2, " thrust of end face adds the self weight of valve body 2 greater than the elastic force of compressed spring 4, and valve body 2 is in the open position always, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, flow of media.
It is Abnormal Shutdown state, at this point, pipe network pressure medium exception superelevation, 202 ' inner cavity of ripple blind pipe shown in attached drawing 10 Pressure medium form to sleeve II 2 that " the thrust superelevation of end face is in the elastic force of compressed spring 4, and valve body 2 is axial to be moved down, sleeve II 2 " ring-shaped valve seats 201 with annular spool 101 of throat fit closely, emergency cut-off pressure source, and hyperpressure medium is prevented to enter Downstream prevents equipment and pipeline from wrecking, personnel and environment are on the hazard；When pipe network pressure medium restores normally, to compress bullet The elastic force of spring 4 will push valve body 2 and axially move up, in the open state.
Embodiment six
Referring to attached drawing 11,12, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for non-return；It is described to be wrapped in The valve core tube 1 of 8 inner cavity 8 ' of outer valve be fixing piece perpendicular to ground it is coaxial from top to bottom through the sleeve I 2 of valve body 2 ', valve 2 inner cavity 200 of body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；It is defeated Entering section 1 ' and deferent segment 1, " there are two radial recirculation holes 103；It surround and is embedded in the sealing surface of the annular spool 101 of interlayer 100 It is the composition sealing pair of ring-shaped valve seats 201 of two-way slope surface and I 2 ' throat of sleeve；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " with Sleeve II 2 " engaging portion be respectively provided with sealing ring 302；Sleeve II 2 " is axially set between end face and corresponding 8 inner face of outer valve Ripple blind pipe 202 ' is set, ripple blind pipe 202 ' penetrates through the preceding pressure of valve by communicating pipe 601；I 2 ' end face of sleeve with it is corresponding outer Compressed spring 4 is axially set between 8 inner face of valve body.
It is open state, pipe network pressure medium is normal, the pressure initiation of 202 ' inner cavity medium of ripple blind pipe shown in attached drawing 11 To sleeve II 2, " elastic force that the thrust of end face is greater than compressed spring 4 adds the self weight of valve body 2, and valve body 2 is in the open position always, tucks inside the sleeve The ring-shaped valve seats 201 of I 2 ' throat of pipe leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 Perforation, flow of media.
It shown in attached drawing 12, is in off state, when ductwork pressure subnormal pressure and upstream lose pressure source, due to ripple 202 ' inner cavity of blind pipe does not have pressure medium to be formed to sleeve II 2, and " thrust of end face adds valve body 2 to be self-possessed in the elastic force of compressed spring 4 Under the action of, move down valve body 2 axially, ring-shaped valve seats 201 and the annular spool 101 of I 2 ' throat of sleeve fit closely, and prevent from being situated between Matter is flow backwards.
Embodiment seven
Referring to attached drawing 13,14, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for safety；It is described to be wrapped in The valve core tube 1 of 8 inner cavity 8 ' of outer valve be fixing piece perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', valve 2 inner cavity 200 of body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；It is defeated Entering section 1 ' and deferent segment 1, " there are two radial recirculation holes 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2 " The ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are all provided with Set bellows seal 300；Ripple blind pipe 202 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, Ripple blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600；Sleeve II 2 is " between end face and corresponding 8 inner face of outer valve Axial setting compressed spring 4；Sleeve II 2 " has the liner of tubular；Between the annular inner wall of outer valve 8 and the annular outer wall of valve body 2 Ball 707 is set.
It shown in attached drawing 13, is in off state, pipe network pressure medium is normal, since the elastic force of compressed spring 4 adds oneself of valve body 2 Gravity is greater than thrust of the pressure initiation to I 2 ' end face of sleeve of 202 inner cavity medium of ripple blind pipe, and valve body 2 is in close stance always Set, sleeve II 2 that " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101.
It is open state, at this point, pipe network pressure medium superelevation, the pressure medium of 202 inner cavity of ripple blind pipe shown in attached drawing 14 Formed to the thrust superelevation of I 2 ' end face of sleeve in the elastic force of compressed spring 4 add valve body 2 from gravity, valve body 2 is axial to be moved up, and is tucked inside the sleeve The recirculation hole 103 of pipe II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200 Perforation, the release of superpressure medium.
Embodiment eight
Referring to attached drawing 15,16, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for opening and closing and depressurizing；It is described The axial forward end face of 100 kernel of interlayer is plane, and axial rearward end face is spherical surface；Input section 1 ' has three circles totally ten two small radial directions " there are two big radial recirculation holes 103 for recirculation hole 103, deferent segment 1；The sealing surface of annular spool 101 is two-way slope surface and sleeve I 2 ' " ring-shaped valve seats 201 of throat constitutes sealing pair with sleeve II 2；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " and sleeve II 2 " engaging portion is respectively provided with bellows seal 300 and sealing ring 302, a communicating pipe 602 penetrates through two sylphon seals The inner cavity of part 300；Ripple blind pipe 202 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, ripple is blind Pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600, and control valve 605 is arranged in the middle part of communicating pipe 600；" the end face and opposite of sleeve II 2 Compressed spring 4 is axially set between 8 inner face of outer valve answered.
It is open state shown in attached drawing 15, pipe network pressure medium is normal, opens control valve 605,202 inner cavity of ripple blind pipe Pressure medium form the elastic force for being greater than compressed spring 4 to the thrust of I 2 ' end face of sleeve, valve body 2 is to deferent segment 1 " direction is mobile, The recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200 perforations, flow of media.
It is micro- open state, pipe network pressure medium is higher, the pressure medium shape of 202 inner cavity of ripple blind pipe shown in attached drawing 16 The thrust of pairs of I 2 ' end face of sleeve is greater than the elastic force of compressed spring 4, and valve body 2 continues to deferent segment 1 " direction is mobile, sleeve I 2 ' Annular inner wall covered two circle totally eight recirculation holes 103 of input section 1 ', reduce the flow and pressure of medium, play decompression Effect.
Embodiment nine
Referring to attached drawing 17,18, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for pulse；The interlayer 100 Two axial end faces of kernel are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1； The sealing surface of annular spool 101 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' with The engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；I 2 ' end face of sleeve with it is corresponding 8 inner face of outer valve between ripple blind pipe 202 is axially set, ripple blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600, " ripple blind pipe 202 ' is axially arranged between end face and corresponding 8 inner face of outer valve, ripple blind pipe 202 ' passes through in sleeve II 2 Penetrate through the rear pressure of valve communicating pipe 601, the internal diameter of ripple blind pipe 202 ' is greater than the internal diameter of ripple blind pipe 202, generates pressure difference；Sleeve II 2 " compressed spring 4 is axially set between end face and corresponding 8 inner face of outer valve.
Shown in attached drawing 17, it is in off state shown in attached drawing 18 for open state, pipe network pressure medium is normal, ripple blind pipe The pressure initiation of 202 media is greater than the elastic force of compressed spring 4, valve opening, II 2 " throat of sleeve to the thrust of I 2 ' end face of sleeve Ring-shaped valve seats 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium Circulation；Then, ripple blind pipe 202 ' is full of pressure medium, the pressure initiation of 202 ' medium of ripple blind pipe to sleeve II 2 " end face Thrust is greater than thrust of the pressure initiation of 202 medium of ripple blind pipe to I 2 ' end face of the sleeve, " ring-shaped valve seats of throat of sleeve II 2 201 are closely affixed with 101 moment of annular spool, and flow of media is obstructed, and the rear pressure pressure of valve becomes smaller, 202 medium of ripple blind pipe Pressure is formed again is greater than the pressure initiation of 202 ' medium of ripple blind pipe to II 2 " end face of sleeve to the thrust of I 2 ' end face of sleeve Thrust and compressed spring 4 elastic force, valve is again turned on, and circulation is concatenated to form regular pulsating medium stream.
Embodiment ten
Referring to attached drawing 19,20, dual-valve body blind pipe described in the present embodiment drives core pipe valve, the safety for clean medium； The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through valve body 2 perpendicular to ground Sleeve I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangles Slope surface 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 is double pitch " ring-shaped valve seats 201 of throat constitutes sealing pair for face and sleeve II 2；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Engaging portion be respectively provided with sealing ring 302；It is blind that ripple is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve Pipe 202, ripple blind pipe 202 pass through the " through-lumen 200 of duct 200 of 2 hollow out of valve body；Sleeve II 2 " end face with it is corresponding outer Compressed spring 4 is axially set between 8 inner face of valve body.
It shown in attached drawing 19, is in off state, pipe network pressure medium is normal, since the elastic force of compressed spring 4 adds oneself of valve body 2 Gravity is greater than thrust of the pressure initiation to I 2 ' end face of sleeve of 202 inner cavity medium of ripple blind pipe, and valve body 2 is in close stance always Set, sleeve II 2 that " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101.
It is open state shown in attached drawing 20, the pressure medium of pipe network pressure medium superelevation, 202 inner cavity of ripple blind pipe is formed To the thrust superelevation of I 2 ' end face of sleeve in the elastic force of compressed spring 4 add valve body 2 from gravity, valve body 2 is axial to be moved up, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, the release of superpressure medium.
Embodiment 11
Referring to attached drawing 21,22, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for non-return, safety；It is described every Two axial end faces of 100 kernel of layer are ligulate triangle slope surfaces 100 '；" there are two radial circulations for input section 1 ' and deferent segment 1 Hole 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input Section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are respectively provided with bellows seal 300；I 2 ' end face of sleeve with Ripple blind pipe 202 is axially set between corresponding 8 inner face of outer valve, and ripple blind pipe 202 passes through the duct of 2 hollow out of valve body 200 " through-lumen 200；" compressed spring 4 is axially arranged between end face and corresponding 8 inner face of outer valve in sleeve II 2.
For non-return:
It is open state, pipe network pressure medium is normal, and the pressure medium of 202 inner cavity of ripple blind pipe is formed shown in attached drawing 21 It is greater than the elastic force of compressed spring 4 to the thrust of I 2 ' end face of sleeve, " direction is mobile, and sleeve II 2 be " throat to deferent segment 1 for valve body 2 Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical.
It shown in attached drawing 22, is in off state, pipe network pressure medium subnormal pressure and upstream lose pressure source, and ripple is blind The pressure medium of 202 inner cavity of pipe forms the elastic force for being less than compressed spring 4 to the thrust of I 2 ' end face of sleeve, the elastic force of compressed spring 4 Keep valve body 2 mobile to 1 ' direction of input section, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101, is prevented Medium is flow backwards.
For safety:
It is open state shown in attached drawing 21, the pressure medium of pipe network pressure medium superelevation, 202 inner cavity of ripple blind pipe is formed To the thrust superelevation of I 2 ' end face of sleeve in the elastic force of compressed spring 4, " direction is mobile, II 2 " throat of sleeve to deferent segment 1 for valve body 2 Ring-shaped valve seats 201 leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, superpressure Medium release.
It shown in attached drawing 22, is in off state, pipe network pressure medium is normal, and the pressure medium of 202 inner cavity of ripple blind pipe is formed It is less than the elastic force of compressed spring 4 to the thrust of I 2 ' end face of sleeve, the elastic force of compressed spring 4 moves valve body 2 to 1 ' direction of input section Dynamic, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101.
Embodiment 12
Referring to attached drawing 23,24, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for emergency cut-off；It is described every Two axial end faces of 100 kernel of layer are spherical surfaces；" there are four radial recirculation holes 103 for input section 1 ' and deferent segment 1；Annular plate valve The sealing surface of core 101 is arc slope and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' and the engaging portion of deferent segment 1 " with sleeve II 2 " be respectively provided with bellows seal 300；Sleeve II 2 " end face with it is corresponding outer Ripple blind pipe 202 ' is axially set between 8 inner face of valve body, and ripple blind pipe 202 ' passes through the duct 200 of 2 hollow out of valve body " in perforation Chamber 200；Compressed spring 4 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve；In the annular of outer valve 8 Ball 707 is arranged in lower half portion between wall and the annular outer wall of valve body 2.
It is open state, pipe network pressure medium is normal, and the pressure medium of 202 ' inner cavity of ripple blind pipe is formed shown in attached drawing 23 To sleeve II 2, " thrust of end face is greater than the elastic force of compressed spring 4, and valve body 2 is in the open position always, and sleeve II 2 be " throat Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical.
It is Abnormal Shutdown state, at this point, ductwork pressure exception superelevation, Jie of 202 ' inner cavity of ripple blind pipe shown in attached drawing 24 Matter pressure initiation is to sleeve II 2 " for the thrust superelevation of end face in the elastic force of compressed spring 4, valve body 2 is mobile to 1 ' direction of input section, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101, emergency cut-off pressure source, prevents super-pressure medium Into downstream, prevent equipment and pipeline from wrecking, personnel and environment are on the hazard；When pipe network pressure medium restores normally, to press The elastic force of contracting spring 4 will push the axial return of valve body 2, in the open state.
Embodiment 13
Referring to attached drawing 25,26, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for emergency cut-off；The packet The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through the sleeve I of valve body 2 perpendicular to ground 2 ', 2 inner cavity 200 of valve body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100′；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 be arc slope with " ring-shaped valve seats 201 of throat constitutes sealing pair to sleeve II 2；The knot of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " Conjunction portion is respectively provided with bellows seal 300；" ripple is axially arranged between end face and corresponding 8 inner face of outer valve in sleeve II 2 Blind pipe 202 ', ripple blind pipe 202 ' pass through " through-lumen 200 of duct 200 of 2 hollow out of valve body；I 2 ' end face of sleeve with it is corresponding Compressed spring 4 is axially set between 8 inner face of outer valve；Sleeve II 2 " has the liner of tubular；The annular inner wall and valve of outer valve 8 Ball 707 is set between the annular outer wall of body 2.
It is open state, pipe network pressure medium is normal, and the pressure medium of 202 ' inner cavity of ripple blind pipe is formed shown in attached drawing 25 To sleeve II 2, " thrust of end face is greater than the elastic force of compressed spring 4, and valve body 2 is in the open position always, and sleeve II 2 be " throat Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical.
It is Abnormal Shutdown state, at this point, ductwork pressure exception superelevation, Jie of 202 ' inner cavity of ripple blind pipe shown in attached drawing 26 Matter pressure initiation is to sleeve II 2, and " the thrust superelevation of end face is in the elastic force of compressed spring 4, and valve body 2 is axial to be moved down, II 2 " larynx of sleeve The ring-shaped valve seats 201 in portion is fitted closely with annular spool 101, emergency cut-off pressure source, and super-pressure medium is prevented to enter downstream, is prevented Only equipment and pipeline wreck, personnel and environment are on the hazard；When pipe network pressure medium restores normal, the bullet of compressed spring 4 Power will push the axial return of valve body 2, in the open state.
Embodiment 14
Referring to attached drawing 27,28, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for adjusting；The interlayer 100 Two axial end faces of kernel are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1； It surround and is two-way slope surface and sleeve I 2 ' and " annular of throat of sleeve II 2 with 101 sealing surface of annular spool of 100 one of interlayer Valve seat 201 constitutes sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows Sealing element 300 and sealing ring 302, a communicating pipe 602 penetrate through two 300 inner cavities of bellows seal；I 2 ' end face of sleeve and phase Ripple blind pipe 202 is axially set, and ripple blind pipe 202 passes through the duct 200 of 2 hollow out of valve body " between corresponding 8 inner face of outer valve Through-lumen 200；" compressed spring 4 is axially arranged between end face and corresponding 8 inner face of outer valve in sleeve II 2；Sleeve I 2 ' " there is the liner of tubular with sleeve II 2.
It is open state, pipe network pressure medium is normal, the pressure initiation of 202 inner cavity medium of ripple blind pipe shown in attached drawing 27 It is greater than the elastic force of compressed spring 4 to the thrust of I 2 ' end face of sleeve, valve body 2 is in the open position, " the annular plate valve of throat of sleeve II 2 Seat 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media.
It is adjustment state, pipe network pressure medium is higher, and the pressure medium of 202 inner cavity of ripple blind pipe is formed shown in attached drawing 28 Be higher than the elastic force of compressed spring 4 to the thrust of I 2 ' end face of sleeve, valve body 2 is to deferent segment 1 " direction is mobile, sleeve I 2 ' annular The recirculation hole 103 that inner wall has covered input section 1 ' is most of, reduces the flow and pressure of medium, plays the work for adjusting decompression With.
Embodiment 15
Referring to attached drawing 29,30,31, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for being isolated, two-way pipeline The urgent cutting of relying on oneself of explosion；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；Input section 1 ' and defeated " there are two radial recirculation holes 103 for section 1 out；The sealing surface of annular spool 101 is arc slope and sleeve I 2 ' and sleeve II 2 " The ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are equal Bellows seal 300 is set；Ripple blind pipe is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve 202, ripple blind pipe 202 penetrates through the preceding pressure of valve by communicating pipe 600；Sleeve II 2 " end face and corresponding 8 inner face of outer valve Between ripple blind pipe 202 ' is axially set, ripple blind pipe 202 ' penetrates through the rear pressure of valve by communicating pipe 601；Sleeve II 2 " end face with Compressed spring 4 is axially set between corresponding 8 inner face of outer valve.
It is open state, pipe network pressure medium is normal, and one, initial stage, pipe network pressure medium is by small change shown in attached drawing 29 Greatly, the pressure medium of 202 inner cavity of ripple blind pipe forms the elastic force for being gradually greater than compressed spring 4 to the thrust of I 2 ' end face of sleeve, valve Body 2 is gradually to deferent segment 1 " direction is mobile, sleeve II 2 ", and the ring-shaped valve seats 201 of throat gradually leaves annular spool 101, until valve Body 2 moves axially to middle part, input section 1 ' and deferent segment 1 " recirculation hole 103 and the perforation of inner cavity 200, flow of media, meanwhile, wave 202 ' inner cavity of line blind pipe is also gradually full of pressure medium, reaches balance, valve body 2 is in the open state always.
It is Abnormal Shutdown state, at this point, the preceding pressure pipeline of valve bursts, 202 inner cavity of ripple blind pipe loses Jie shown in attached drawing 30 Matter pressure can not form the thrust to I 2 ' end face of sleeve, the medium pressure in the 202 ' inner cavity of elastic force and ripple blind pipe of compressed spring 4 Under the resultant force of power pushes, valve body 2 is mobile to 1 ' direction of input section, the sleeve II 2 " ring-shaped valve seats 201 and annular spool 101 of throat It fits closely, downstream media is prevented to flow backwards；Meanwhile upper one two-way booster quick action emergency valve of same pipeline can also cut off upstream Medium flow field；Protect resource, environment, related personnel life.
It is Abnormal Shutdown state, one, the explosion of the rear pressure pipeline of valve, 202 ' inner cavity of ripple blind pipe loses Jie shown in attached drawing 31 Matter pressure can not be formed to sleeve II 2, and " pressure medium of the thrust of end face, 202 inner cavity of ripple blind pipe is formed to I 2 ' end face of sleeve Thrust be greater than the elastic force of compressed spring 4, valve body 2 is to deferent segment 1 " direction is mobile, the ring-shaped valve seats 201 of I 2 ' throat of sleeve with Annular spool 101 fits closely；Meanwhile next two-way booster quick action emergency valve of same pipeline can also cut off the medium in downstream It flows backwards；Protect resource, environment, related personnel life；Two, the rear pressure pipeline leakage of valve, Jie of 202 ' inner cavity of ripple blind pipe Matter pressure can not be effectively formed to sleeve II 2 " thrust of end face, the ring-shaped valve seats 201 of I 2 ' throat of sleeve and annular spool 101 It fits closely, plays buffer action.
Embodiment 16
Referring to attached drawing 32,33, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for pressure opening and closing, non-return；Institute Stating and being wrapped in the valve core tube 1 of 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through the sleeve of valve body 2 perpendicular to ground Pipe I 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slopes Face 100 '；" there are two the radial recirculation holes 103 of well-balanced arrangement for input section 1 ' and deferent segment 1；The sealing surface of annular spool 101 Being unidirectional slope surface and sleeve II 2, " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' and deferent segment 1 " with Sleeve II 2 " engaging portion be respectively provided with bellows seal 300；Sleeve II 2 is " between end face and corresponding 8 inner face of outer valve Ripple blind pipe 202 ' is set, and the driving medium that 202 ' inner cavity of ripple blind pipe is filled with is compressed air；1 ' outer diameter of input section is greater than defeated " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference to section 1 out.
It is opened and closed for pressure:
It shown in attached drawing 32, is in off state, 202 inner cavity of ripple blind pipe is filled with compressed air and forms air spring, at this point, pipe Net pressure medium is less than requirements, and it is interior that the thrust that the pressure difference of axial two end faces in inner cavity 200 is formed is less than ripple blind pipe 202 ' The elastic force that the compressed air of chamber is formed adds valve body 2 to be self-possessed, sleeve II 2, and " ring-shaped valve seats 201 and annular spool 101 of throat are close It is affixed.
It is open state shown in attached drawing 33, since pipe network pressure medium reaches requirements, axial two end faces in inner cavity 200 Pressure difference formed thrust be greater than 202 ' inner cavity of ripple blind pipe compressed air formed elastic force add valve body 2 be self-possessed, push valve Body 2 is axial to be moved up, the circulation of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " Hole 103 and inner cavity 200 penetrate through, flow of media.
For non-return:
It shown in attached drawing 32, is in off state, pipe network pressure medium is less than normal value or loses pressure source, 200 axis of inner cavity The elastic force that the compressed air that the thrust formed to the pressure difference of two end faces is less than 202 ' inner cavity of ripple blind pipe is formed adds valve body 2 certainly " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, and medium is flow backwards in cutting for weight, sleeve II 2.
It is open state shown in attached drawing 33, since pipe network pressure medium is normal, the pressure of axial two end faces in inner cavity 200 The elastic force that the compressed air that the thrust that difference is formed is greater than 202 ' inner cavity of ripple blind pipe is formed adds valve body 2 to be self-possessed, and pushes valve body 2 axial Move up, sleeve II 2 recirculation hole 103 of " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " with Inner cavity 200 penetrates through, flow of media.
Embodiment 17
Referring to attached drawing 34,35, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for opening and closing；It is described to be wrapped in The valve core tube 1 of 8 inner cavity 8 ' of outer valve be fixing piece perpendicular to ground it is coaxial from bottom to up through the sleeve I 2 of valve body 2 ', valve 2 inner cavity 200 of body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；It is defeated Entering section 1 ' and deferent segment 1, " there are two radial recirculation holes 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2 " The ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and the engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " are all provided with Set bellows seal 300；Ripple blind pipe 202 is axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, The driving medium that 202 inner cavity of ripple blind pipe is filled with can be compressed air, tap water etc.；Sleeve II 2 " has the liner of tubular；Outside Ball 707 is set between the annular inner wall of valve body 8 and the annular outer wall of valve body 2.
It is open state, at this point, being filled with driving medium, 202 inner cavity of ripple blind pipe to ripple blind pipe 202 shown in attached drawing 34 Pressure medium form the self weight for being greater than valve body 2 to the thrust of I 2 ' end face of sleeve, valve body 2 is axial to be moved up, and sleeve II 2 be " throat Ring-shaped valve seats 201 leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, medium flow field It is logical.
It shown in attached drawing 35, is in off state, bleeds off the pressure medium of 202 inner cavity of ripple blind pipe, since the self weight of valve body 2 makes Valve body 2 is axial to be moved down, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101.
Embodiment 18
Referring to attached drawing 36,37,38,39, dual-valve body blind pipe described in the present embodiment drives core pipe valve, opened and closed for pressure, Non-return, opening and closing；The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece passes through from top to bottom perpendicular to ground is coaxial Be through at the sleeve I 2 of valve body 2 ', the sleeve II 2 of 2 inner cavity 200 of valve body and valve body 2 "；Two axial end faces of 100 kernel of interlayer It is ligulate triangle slope surface 100 '；" there are two the radial recirculation holes 103 of well-balanced arrangement for input section 1 ' and deferent segment 1；Annular spool 101 sealing surface is unidirectional slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' and sleeve I 2 ' Bellows seal 300 is respectively provided with the engaging portion of deferent segment 1 " with sleeve II 2 "；Sleeve II 2 " end face and corresponding outer valve Ripple blind pipe 202 ' is set between 8 inner face of body, and the driving medium that ripple blind pipe 202 ' is filled with is compressed air；Input section 1 ' is outer Diameter is greater than deferent segment 1, and " outer diameter, therefore, axial two end faces in inner cavity 200 form pressure difference.
It is opened and closed for pressure:
It is open state shown in attached drawing 36, since pipe network pressure medium reaches requirements, axial two end faces in inner cavity 200 Pressure difference formed thrust add valve body 2 from gravity be greater than 202 ' inner cavity of ripple blind pipe compressed air formed elastic force, push Valve body 2 is axial to be moved down, the stream of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " Through-hole 103 and inner cavity 200 penetrate through, flow of media.
It shown in attached drawing 37, is in off state, at this point, pipe network pressure medium is less than requirements, axial two end faces in inner cavity 200 Pressure difference formed thrust add valve body 2 from gravity be less than 202 ' inner cavity of ripple blind pipe compressed air formed elastic force, sleeve II 2 " ring-shaped valve seats 201 with annular spool 101 of throat are closely affixed.
For non-return:
It is open state shown in attached drawing 36, since pipe network pressure medium is normal, the pressure of axial two end faces in inner cavity 200 The elastic force that the compressed air that the thrust that difference is formed adds valve body 2 to be greater than 202 ' inner cavity of ripple blind pipe from gravity is formed, pushes 2 axis of valve body To moving down, the recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " It is penetrated through with inner cavity 200, flow of media.
It shown in attached drawing 37, is in off state, pipe network pressure medium is less than normal value or loses pressure source, 200 axis of inner cavity What the compressed air that the thrust formed to the pressure difference of two end faces adds valve body 2 to be less than 202 ' inner cavity of ripple blind pipe from gravity was formed " ring-shaped valve seats 201 of throat is closely affixed with annular spool 101, and downstream media is prevented to flow backwards for elastic force, sleeve II 2.
For opening and closing:
It shown in attached drawing 38, is in off state, when needing to close valve, the compressed air of 202 ' inner cavity of ripple blind pipe is put Then tap water is injected 202 inner cavity of ripple blind pipe by sky, push valve body 2 is axial to move up, " the ring-shaped valve seats of throat of sleeve II 2 201 are closely affixed with annular spool 101；Since liquid is incompressible, so, no matter ductwork pressure is much, valve is always It is to close.
It is open state shown in attached drawing 39, when needing Open valve, the liquid of 202 ' inner cavity of ripple blind pipe is vented, it is interior What the thrust that the pressure difference of axial two end faces of chamber 200 is formed added valve body 2 makes valve body 2 axially be displaced downwardly to open state from gravity, The recirculation hole 103 of sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " and inner cavity 200 perforations, flow of media.
Embodiment 19
Referring to attached drawing 40,41, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for emergency cut-off；The packet The valve core tube 1 for being wrapped in 8 inner cavity 8 ' of outer valve is that fixing piece is coaxial from bottom to up through the sleeve I of valve body 2 perpendicular to ground 2 ', 2 inner cavity 200 of valve body and valve body 2 sleeve II 2 "；Two axial end faces of 100 kernel of interlayer are spherical surfaces；Input section 1 ' " there are four the radial recirculation holes 103 of well-balanced arrangement with deferent segment 1；The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2 " ring-shaped valve seats 201 of throat constitutes sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " It is respectively provided with bellows seal 300；Ripple blind pipe 202 is set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve, Ripple blind pipe 202 is filled with compressed air；1 ' outer diameter of input section is less than deferent segment 1 " outer diameter, therefore, axial two end faces in inner cavity 200 Form pressure difference；Sleeve II 2 " has the liner of tubular.
It is open state, pipe network pressure medium is normal, and 202 inner cavity of ripple blind pipe is filled with compressed air shape shown in attached drawing 40 At air spring, the thrust that the pressure difference of axial two end faces in inner cavity 200 is formed adds the self weight of valve body 2 to be less than in ripple blind pipe 202 The elastic force that the compressed air of chamber is formed pushes 2 axis of the valve body " ring-shaped valve seats 201 of throat that moves upwardly into open position, sleeve II 2 Leave annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
It is Abnormal Shutdown state shown in attached drawing 41, pipe network pressure medium exception superelevation, axial two end faces in inner cavity 200 The superelevation thrust that pressure difference is formed adds the self weight of valve body 2 to be greater than the elastic force that the compressed air of 202 inner cavity of ripple blind pipe is formed, and pushes valve Body 2 is axial to be moved down, and " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101；Superelevation medium flow field is cut off, is protected Protect the safety of downstream pipe and equipment.
The compressed air of 202 inner cavity of ripple blind pipe can be vented when needing to close valve；When needing to change valve purposes, begin When opening eventually, tap water is injected in 202 inner cavity of ripple blind pipe, all right.
Embodiment 20
Referring to attached drawing 42,43, dual-valve body blind pipe described in the present embodiment drives core pipe valve, for opening and closing；The interlayer 100 Two axial end faces of kernel are ligulate triangle slope surfaces 100 '；" there are two radial recirculation holes 103 for input section 1 ' and deferent segment 1； The sealing surface of annular spool 101 is two-way slope surface and sleeve II 2, and " ring-shaped valve seats 201 of throat constitutes sealing pair；Input section 1 ' with The engaging portion of sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300；I 2 ' end face of sleeve with it is corresponding 8 inner face of outer valve between ripple blind pipe 202 is axially set, 202 inner cavity of ripple blind pipe can be injected driving medium, can be Compressed air is also possible to tap water, can also be industry oil etc.；Sleeve II 2 " end face and corresponding 8 inner face of outer valve Between compressed spring 4 is axially set；Sleeve II 2 " has the liner of tubular；The annular inner wall of outer valve 8 and the annular outer wall of valve body 2 Between be arranged ball 707.
It shown in attached drawing 42, is in off state, 202 inner cavity of ripple blind pipe does not drive medium, due to the elastic force of compressed spring 4 Keep valve body 2 mobile to 1 ' direction of input section, " ring-shaped valve seats 201 of throat is closely affixed sleeve II 2 with annular spool 101.
It is open state shown in attached drawing 43, driving medium is injected into ripple blind pipe 202, the driving of 202 inner cavity of ripple blind pipe is situated between The pressure initiation of matter is greater than the elastic force of compressed spring 4 to the thrust of I 2 ' end face of sleeve, and valve body 2 is in the open position always, sleeve II 2 " ring-shaped valve seats 201 of throat leaves annular spool 101, input section 1 ' and deferent segment 1 " recirculation hole 103 passed through with inner cavity 200 It is logical, flow of media.
Embodiment 21
Referring to attached drawing 44,45,46, dual-valve body blind pipe described in the present embodiment drives core pipe valve, is used for two-way opening and closing；It is described Two axial end faces of 100 kernel of interlayer are ligulate triangle slope surfaces 100 '；" there are two radial flows for input section 1 ' and deferent segment 1 Through-hole 103；The sealing surface of annular spool 101 is two-way slope surface and sleeve I 2 ' and " the equal structure of ring-shaped valve seats 201 of throat of sleeve II 2 At sealing pair；The engaging portion of input section 1 ' and sleeve I 2 ' and deferent segment 1 " with sleeve II 2 " is respectively provided with bellows seal 300； Ripple blind pipe 202, sleeve II 2 are axially set between I 2 ' end face of sleeve and corresponding 8 inner face of outer valve " end face and opposite Ripple blind pipe 202 ' is axially set between 8 inner face of outer valve answered, and ripple blind pipe 202 and ripple blind pipe 202 ' can be filled with pressure Contracting air can arbitrarily bleed off the compressed air of one of ripple blind pipe inner cavity when needing to close valve；Sleeve I 2 ' with Sleeve II 2 " has the liner of tubular；Ball 707 is set between the annular inner wall of outer valve 8 and the annular outer wall of valve body 2.
It is open state shown in attached drawing 44, ripple blind pipe 202 and ripple blind pipe 202 ' are filled with compressed air, sleeve I 2 ' With sleeve II 2 " ring-shaped valve seats 201 of throat is away from annular spool 101, and valve body 2 is located at middle part, input section 1 ' and deferent segment 1 " Recirculation hole 103 and inner cavity 200 penetrate through, flow of media.
It shown in attached drawing 45, is in off state, at this point, the compressed air of 202 inner cavity of ripple blind pipe is bled off, in ripple blind pipe Under the compressed air pressure of 202 ' inner cavities pushes, valve body 2 is mobile to 1 ' direction of input section, " the ring-shaped valve seats of throat of sleeve II 2 201 fit closely with annular spool 101.
It shown in attached drawing 46, is in off state, at this point, the compressed air of 202 ' inner cavity of ripple blind pipe is bled off, in ripple blind pipe Under the compressed air pressure of 202 inner cavities pushes, " direction is mobile, the ring-shaped valve seats 201 of I 2 ' throat of sleeve to deferent segment 1 for valve body 2 It is fitted closely with annular spool 101.

Claims (10)

1. dual-valve body blind pipe drives core pipe valve, which is characterized in that it is solid for being wrapped in the valve core tube (1) of outer valve (8) inner cavity (8 ') Determine the coaxial sleeve II (2 ") through the sleeve I (2 ') of valve body (2), valve body (2) inner cavity (200) and valve body (2) of part； Have axial interlayer (100) in the middle part of valve core tube (1), interlayer (100) by kernel and the valve core tube (1) of kernel radial radiation intermediate tube Section is constituted；The axially adjacent both sides of interlayer (100) are at least one recirculation hole of input section (1 ') and deferent segment (1 ") respectively (103)；Annular spool (101) and at least one sleeve throat of sleeve I (2 ') and sleeve II (2 ") around interlayer (100) Ring-shaped valve seats (201) constitutes sealing pair；Input section (1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") are shaft hole mode Cooperate the setting sealing of its at least one engaging portion；At least one sleeve end face of sleeve I (2 ') and sleeve II (2 ") with it is corresponding Outer valve (8) inner face between axially setting using driving medium ripple blind pipe, wherein sleeve I (2 ') end face is ripple Blind pipe (202), sleeve II (2 ") end face is ripple blind pipe (202 ')；The outer diameter of input section (1 ') and the outer diameter of deferent segment (1 ") it Difference >=0；Under the action of both direction potential energy, valve body (2) outer valve (8) inner cavity (8 ') axial reciprocating it is mobile realize opening and closing, Power and energy.
2. dual-valve body blind pipe described in accordance with the claim 1 drives core pipe valve, which is characterized in that interlayer (100) kernel Two axial end faces are ligulate triangle slope surfaces (100 ').
3. dual-valve body blind pipe described in accordance with the claim 1 drives core pipe valve, which is characterized in that the ripple blind pipe (202) and At least one ripple blind pipe of ripple blind pipe (202 ') penetrates through the preceding pressure of valve by communicating pipe, wherein ripple blind pipe (202) passes through Penetrate through the preceding pressure of valve communicating pipe (600), ripple blind pipe (202 ') penetrates through the preceding pressure of valve by communicating pipe (601).
4. dual-valve body blind pipe described in accordance with the claim 1 drives core pipe valve, which is characterized in that the ripple blind pipe (202) is logical The preceding pressure of communicating pipe (600) perforation valve is crossed, ripple blind pipe (202 ') penetrates through the rear pressure of valve by communicating pipe (601).
5. dual-valve body blind pipe described in accordance with the claim 1 drives core pipe valve, which is characterized in that the ripple blind pipe (202) and At least one ripple blind pipe of ripple blind pipe (202 ') passes through duct (200 ") through-lumen (200) of valve body (2) hollow out.
6. dual-valve body blind pipe described in accordance with the claim 1 drives core pipe valve, which is characterized in that the ripple blind pipe (202) and At least one ripple blind pipe injection driving medium of ripple blind pipe (202 ').
7. driving core pipe valve according to any dual-valve body blind pipe of claim 1 to 6, which is characterized in that the sleeve I (2 ') Axially setting is pressed between at least one sleeve end face of end face and sleeve II (2 ") end face and corresponding outer valve (8) inner face Contracting spring (4).
8. driving core pipe valve according to any dual-valve body blind pipe of claim 1 to 6, which is characterized in that the input section The engaging portion of (1 ') and sleeve I (2 ') and deferent segment (1 ") and sleeve II (2 ") is respectively provided with bellows seal (300) and sealing It encloses (302), a communicating pipe (602) penetrates through the inner cavity of two bellows seals (300).
9. driving core pipe valve according to any dual-valve body blind pipe of claim 1 to 6, which is characterized in that the outer valve (8) Annular inner wall and valve body (2) annular outer wall between be arranged ball (707).
10. driving core pipe valve according to any dual-valve body blind pipe of claim 1 to 6, which is characterized in that the sleeve I At least one sleeve of (2 ') and sleeve II (2 ") has the liner of tubular.
CN201810272357.3A 2018-03-29 2018-03-29 Dual-valve body blind pipe drives core pipe valve Withdrawn CN110319220A (en)

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CN201810272357.3A CN110319220A (en) 2018-03-29 2018-03-29 Dual-valve body blind pipe drives core pipe valve

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Application Number Priority Date Filing Date Title
CN201810272357.3A CN110319220A (en) 2018-03-29 2018-03-29 Dual-valve body blind pipe drives core pipe valve

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316681A1 (en) * 1973-04-04 1974-10-31 Hubert Skibowski SHUT-OFF AND REGULATING FITTINGS FOR HAND AND REMOTE CONTROL
DE2425139A1 (en) * 1973-04-11 1975-11-27 Hubert Skibowski Connection for relatively movable pipes - has central vee connector releasable at preset tensile load and anular channels to retain fluid
CN1252740A (en) * 1997-04-21 2000-05-10 斯文·埃里克·英厄马尔·哈尔托普 Spray device with nozzle and valve
CN1620570A (en) * 2001-10-02 2005-05-25 海如弗洛控股有限公司 A check valve
US20050230655A1 (en) * 2004-04-15 2005-10-20 Lung-Hui Chen Rotation speed regulating mechanism for pneumatic tools
CN105972238A (en) * 2016-07-24 2016-09-28 夏育红 Valve body moving type on-off valve for industrial pipelines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316681A1 (en) * 1973-04-04 1974-10-31 Hubert Skibowski SHUT-OFF AND REGULATING FITTINGS FOR HAND AND REMOTE CONTROL
DE2425139A1 (en) * 1973-04-11 1975-11-27 Hubert Skibowski Connection for relatively movable pipes - has central vee connector releasable at preset tensile load and anular channels to retain fluid
CN1252740A (en) * 1997-04-21 2000-05-10 斯文·埃里克·英厄马尔·哈尔托普 Spray device with nozzle and valve
CN1620570A (en) * 2001-10-02 2005-05-25 海如弗洛控股有限公司 A check valve
US20050230655A1 (en) * 2004-04-15 2005-10-20 Lung-Hui Chen Rotation speed regulating mechanism for pneumatic tools
CN105972238A (en) * 2016-07-24 2016-09-28 夏育红 Valve body moving type on-off valve for industrial pipelines

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Application publication date: 20191011