EP3515545A1 - Microsoupape fendue - Google Patents

Microsoupape fendue

Info

Publication number
EP3515545A1
EP3515545A1 EP17852252.0A EP17852252A EP3515545A1 EP 3515545 A1 EP3515545 A1 EP 3515545A1 EP 17852252 A EP17852252 A EP 17852252A EP 3515545 A1 EP3515545 A1 EP 3515545A1
Authority
EP
European Patent Office
Prior art keywords
valve
valve body
body section
plug
micro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17852252.0A
Other languages
German (de)
English (en)
Other versions
EP3515545A4 (fr
Inventor
Yu Gu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Skywell Healthcare Information Co Ltd
Original Assignee
Suzhou Skywell Healthcare Information Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Skywell Healthcare Information Co Ltd filed Critical Suzhou Skywell Healthcare Information Co Ltd
Publication of EP3515545A1 publication Critical patent/EP3515545A1/fr
Publication of EP3515545A4 publication Critical patent/EP3515545A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/006—Sprayers or atomisers specially adapted for therapeutic purposes operated by applying mechanical pressure to the liquid to be sprayed or atomised
    • A61M11/007—Syringe-type or piston-type sprayers or atomisers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
    • 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
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
    • F16K99/0023—Constructional types of microvalves; Details of the cutting-off member with ball-shaped 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
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0055—Operating means specially adapted for microvalves actuated by fluids
    • F16K99/0057—Operating means specially adapted for microvalves actuated by fluids the fluid being the circulating fluid itself, e.g. check valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • A61M2039/248—Ball-valve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • A61M2039/2486—Guided stem, e.g. reciprocating stopper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A61M5/16813—Flow controllers by controlling the degree of opening of the flow line

Definitions

  • the present disclosure relates to a fluid control device, and more particularly to a micro-valve structure for controlling dispensation of micro-fluid.
  • a micro-valve is suitable for dispensing very small amounts of liquid (e.g. in milliliter, microliter) .
  • liquid e.g. in milliliter, microliter
  • a micro-valve is desirably disposed at one end of a suction tube, for controlling the amount of fluid supplied to the drug-delivery atomizer.
  • an intravenous injection amount per unit time for some drugs is more important than a total amount of the drugs being injected.
  • Table 1 Commonly used drugs of intravenous general anesthesia, and their requirements of volume flow for the constant-rate intravenous infusion
  • an intravenous drip can be used after the drug is diluted by a 5%glucose solution.
  • the volume flow rate of intravenous drip is generally 2-4 ml/min.
  • An existing micro-valve structure typically comprises a valve body, a valve plug, a spring and a positioner.
  • the valve body which is a tube-like shape, has at its one end a liquid inlet with a smaller diameter, and an inner side of the liquid inlet forms a valve seat.
  • the valve plug is typically a valve ball, which is put into the valve seat along with the spring through the other end of the valve body.
  • the valve ball is sealingly mated with the valve seat.
  • the positioner is tightly mated with the other end of the valve body to position the spring and valve ball.
  • metallic materials e.g. stainless steel
  • the reason for this is, for example, the difficulty of injection molding because of the small size of the parts, different situations of shrink of plastic parts for each batch of injection molding, or the difficulty in adjusting the parts from different batches.
  • an existing small size metallic one-way valve is not detachable once assembled, which means that the parts cannot be detached for reuse as long as they are assembled together.
  • the valve may not be used once any part thereof has defects.
  • each one-way valve being assembled can be put into use only after it passes a leak-checking test.
  • An undetachable one-way valve is scrapped if it fails in the leak-checking test.
  • due to the corrosion and oxidation of metallic materials materials and parts with better properties are desired for increasing service lifetime.
  • liquid leakage is still inevitable for a valve after a period of time, and then the valve as a whole has to be scrapped.
  • the valve is disposable or has to be cleaned carefully before and after each usage.
  • a cleaning process is added, which adversely affects the service lifetime of the valve, and costs including manpower, time and resource.
  • the flow cannot be adjusted for the existing micro-valve by itself. If it is desired to adjust the flow, an additional rate control valve or other flow control valves are required mounted to the tube, or other type of one-way valve with a more complicated structure is required.
  • An objective of the present application is to provide a split micro-valve.
  • the split micro-valve has an improved structure, which enables precise volume control of an inner valve chamber and ensures product uniformity.
  • a valve body has a first valve body section and a second valve body section which are formed separately.
  • the first valve body section defines a valve chamber and has a first end and a second end opposite to the first end, and the first valve body section comprises a liquid outlet at the first end.
  • the second valve body section having a first end and a second end opposite to the first end, and the second valve body section comprises a liquid inlet at the first end and defines a valve seat at the second end.
  • the second valve body section is threadedly coupled to the first valve body through their respective second ends.
  • the split micro-valve further comprises a valve plug received within the valve chamber, the valve plug being movable between a first position pressed against the valve seat and a second position away from the valve seat, so as to permit or prohibit a liquid flow from the liquid inlet to the liquid outlet.
  • the valve body is formed of the first valve body section and the second valve body section through threaded connection, and no positioner is required after the valve plug is mounted therein.
  • the valve seat can be sealed by the valve plug when the valve plug is seated on the valve seat.
  • the valve plug is separated from the valve seat due to the pressure from the liquid inlet, which enables the fluid communication between the liquid inlet and the liquid outlet.
  • the valve plug is restored into the valve seat by the pressure from the liquid outlet.
  • a spring is disposed within the valve chamber for pressing the valve plug against the valve seat.
  • the spring has a first end in contact with the valve plug, and a second end in contact with a sidewall of the liquid outlet. The resilience of the spring can be used to restore the valve plug, which is especially applicable to the situation where no restoration pressure is applied from the liquid outlet.
  • the valve plug may have various shapes.
  • the valve plug is spherical.
  • the valve plug is cylindrical.
  • the first end of the valve plug which contacts with the valve seat is semi-spherical, and the second end of the valve plug is cylindrical.
  • the micro-valve is applicable to different situations by adjusting the volume of the valve chamber.
  • a split micro-valve comprises a valve body having a first valve body section and a second valve body section which are formed separately.
  • the first valve body section has a first end and a second end opposite to the first end, and the first valve body section comprising a liquid outlet at the first end.
  • the second valve body section defines a valve chamber and having a first end and a second end opposite to the first end, the second valve body section comprises a liquid inlet at the first end, and the valve chamber defines a valve seat towards the liquid inlet.
  • the second valve body section is threadedly coupled to the first valve body through their respective second ends.
  • the split micro-valve further comprises: a valve plug received within the valve chamber, the valve plug being movable between a first position pressed against the valve seat and a second position away from the valve seat, so as to permit or prohibit a liquid flow from the liquid inlet to the liquid outlet.
  • a spring is disposed inside the valve chamber.
  • the spring has a first end in contact with the valve plug and a second end in contact with the second end of the first valve body section.
  • the valve plug may have various shapes.
  • the valve plug is spherical.
  • the valve plug is cylindrical.
  • the first end of the valve plug which contacts with the valve seat is semi-spherical, and the second end of the valve plug is cylindrical.
  • a valve body of a micro-valve is typically form as an integral structure, and the design of the valve focuses more on how to position a valve plug and spring.
  • the valve body of the present application is inventively constructed as a split structure, and the valve plug is disposed at a joint between the two valve body sections which are threadedly coupled with each other. As a result, the micro-valve can be assembled easily, and no complicated mold is required.
  • a throttle controls its fluid flow by adjusting the throttling section or throttling length. Since the inner part of the micro-valve of the present application can be replaced, the fluid flow of the micro-valve of the present application can be adjusted by using valve plugs having different section sizes or lengths, changing the size of its housing or spring, or other adjustment means, which is similar to the adjusting of the throttle For a situation where flow adjustment does not occurs frequently, only a portion of the parts is needed to be changed for a period of time, which reduces unnecessary storage, configuration and cost.
  • the minimum outer diameter of the entire valve can be as small as 1.5 mm. Even if the one-way valve of the present application is mounted in a tube having a small diameter, the tube section mounted with the micro-valve would not protrude from the tube. As a result, the exterior can extend smoothly, and a tube can be matched easily.
  • the outer diameter of the valve of the present application is even smaller than a known one-way valve or check valve having a diameter of 2.5 mm available from THE LEE COMPANY.
  • the product structure can be detached easily, and thus every single part can be replaced independently. An undesirable part can be replaced in time once being found. Furthermore, the coupling between different parts of the valve can be adjusted easily, and thus the quality of the entire product can be improved. In addition, the cost of materials is reduced, and the cost for the entire product is thus reduced, which is beneficial for market competition.
  • the product structure can be detached easily, and thus visible cleaning and disinfection can be used. As a result, the use cost and process loss can be reduced.
  • Figure 1 is a first embodiment according to the present disclosure.
  • Figure 2 is an exploded view of Figure 1.
  • Figure 3 is a partial section view of Figure 1.
  • Figure 4 is a structure diagram of a second embodiment.
  • Figure 5 is a structure diagram of a third embodiment.
  • Figure 6 is a diagram of a fourth embodiment.
  • Figure 7 is a section view of Figure 6.
  • Figure 8 is a structure diagram illustrating an application scenario as a fifth embodiment.
  • Figure 9 is a partial enlarged view of Figure 8.
  • Figure 10 is a structure diagram of a sixth embodiment.
  • Figure 11 is an exploded view of Figure 10.
  • Figure 12 is a section view of Figure 11.
  • Figures 13 and 14 are section views of other two structures in the sixth embodiment.
  • a split micro-valve which includes a first valve body section, i.e. a front valve body section 1, a second valve body section, i.e. a rear valve body section 4, a valve plug 3, and a spring 2.
  • the front valve body section 1 has a valve chamber 10. At a first end of the front valve body section 1 there is a liquid outlet 5, and at a second end of the front valve body section 1 there is an interior thread 6.
  • the interior thread 6 of the front valve body section 1 is matably connected to the exterior thread 8 of the rear valve body section to form a threaded connection.
  • the rear valve body section 4 defines a valve seat 7 at its second end.
  • the spring 2 and the valve plug 3 are disposed inside the valve chamber 10.
  • a first end of the spring 2 is in contact with the valve plug 3, and a second end of the spring 2 is in contact with a sidewall of the liquid outlet of the valve chamber 10.
  • the valve plug is a spherical valve ball, which can be seated within the valve seat of the rear valve body section.
  • the one-way valve can be used inside of an analgesic pump, an insulin pump, a needleless syringe, or an atomizer. It’s advantageous to reduce the volume of structure, and thus to develop a portable wearable administrating device.
  • a capillary stainless steel tube is used as a valve sleeve of the body for a micro-valve, which can fully satisfy the requirement on the size of inner diameter of the micro-valve in a precise syringe application. That is, corresponding valves that match with the required inner diameter sizes can be mounted with the same syringe needle based on the requirements on different flow rates.
  • a split micro-valve which includes a front valve body section 1, a rear valve body section 4, a valve plug 3, and a spring 2.
  • the front valve body section 1 has a valve chamber 10. At a first end of the front valve body section 1 there is a liquid outlet 5, and at a second end of the front valve body section 1 there is an interior thread 6. At a first end of the rear valve body section 4 there is a liquid inlet 9, and at a second end of the rear body section 4 there is an exterior thread.
  • the interior thread 6 of the front valve body section 1 is matably connected to the exterior thread 8 of the rear valve body section to form a threaded connection.
  • the rear valve body section 4 defines a valve seat 7 at its second end.
  • the spring 2 and the valve plug 3 are disposed inside the valve chamber 10. In the embodiment, the valve plug is cylindrical.
  • a split micro-valve which includes a front valve body 1, a rear valve body 4, a valve plug 3, and a spring 2.
  • the front valve body section 1 has a valve chamber 10. At a first end of the front valve body section 1 there is a liquid outlet 5, and at a second end of the front valve body section 1 there is an interior thread 6. At a first end of the rear valve body section 4 there is a liquid inlet 9, and at a second end of the rear body section 4 there is an exterior thread.
  • the interior thread 6 of the front valve body section 1 is matably connected to the exterior thread 8 of the rear valve body section to form a threaded connection.
  • the rear valve body section 4 defines a valve seat 7 at its second end.
  • the spring 2 and the valve plug 3 are disposed inside the valve chamber 10. In the embodiment, a first end of the valve plug that contacts with the valve seat is hemispherical, and a second end of the valve plug is cylindrical.
  • a split micro-valve which includes a front valve body 1, a rear valve body 4, and a valve plug 3.
  • the front valve body section 1 has a valve chamber 10. At a first end of the front valve body section 1 there is a liquid outlet 5, and at a second end of the front valve body section 1 there is an interior thread 6. At a first end of the rear valve body section 4 there is a liquid inlet 9, and at a second end of the rear body section 4 there is an exterior thread.
  • the interior thread 6 of the front valve body section 1 is matably connected to the exterior thread 8 of the rear valve body section to form a threaded connection.
  • the rear valve body section 4 defines a valve seat 7 at its second end.
  • valve plug is spherical, and no spring is disposed. Since the volume of the valve chamber is small, the spherical valve plug is sealingly seated on the valve seat under the pressure from the outlet side when the micro-valve is in use.
  • chemotherapeutic drugs in the treatment of cancer requires multiple points of dispersive microinjection.
  • an aerosol inhalation of high concentration drug is required at a time to relieve the patient’s acute symptom.
  • the dosage of aerosol is generally 15-30 ⁇ l each time.
  • the micro-valve of the present application can be applied in flow control during inhalation of drug liquid from an atomizer.
  • a minimum inner diameter of the valve chamber 10 can be as small as 0.4 mm, which reduces an area of a working section significantly.
  • the displacement of a valve plug can be adjusted by changing the length of the valve plug, compression amount of a spring, or stiffness of a spring, thereby satisfying the design requirement on precision.
  • an atomizer has an upper housing 11 and a lower housing 12.
  • a liquid pool 13, a spring and a spring-positioning shell 14 are disposed inside the lower housing 12.
  • a rear valve body section 4 is integrally formed with an inlet tube, which extends into the liquid pool 13.
  • a front valve body section 1 is threadedly coupled with the rear valve body section 4.
  • the front valve body section 1 and rear valve body section 4 form a valve body, which is inserted into a flow channel.
  • a distal end of the flow channel adjacent to an atomizing outlet 15 is disposed with a positioning hole, which prevents the valve body from escaping out of the flow channel.
  • the atomizer further include a first sealing 16, a second sealing 17, a first fastener 18, and a second fastener 19 to sustain the stability of the valve body in a movement direction.
  • a micro-channel is disposed between the positioning hole and the atomizing outlet, such that a high liquid pressure can be generated from an instant decrease of diameter of the channel when the liquid flows from the positioning hole having a diameter of 0.4 mm to the atomizing outlet having a diameter of 0.005 mm.
  • the high liquid pressure pushes the valve plug 3 back against a liquid inlet of the rear valve body section 4, thereby preventing the liquid from flowing back and forcing the liquid flow toward the atomizing outlet.
  • the valve body is connected to the liquid pool 13 via a connecting member 20, so as to achieve a synchronous movement.
  • the micro-valve is connected to the liquid pool 13 via the connecting member 20, and the micro-valve is below the atomizing outlet 15.
  • a peripheral spring is pre-compressed, with its upper portion pressed against the connecting member 20 and its lower portion fixed by the spring-positioning shell 14.
  • Second state at the beginning of the liquid dispensing operation, the connecting member 20 is forced to move down to compress the peripheral spring further, and the micro-valve and liquid pool move down along with the connecting member.
  • the movement of the micro-valve away from the atomizing outlet causes the valve plug to float upward, such that liquid is infused into the flow channel.
  • a split micro-valve includes a valve body and a valve plug 3.
  • the valve body includes a first valve body section, i.e. a front valve body section 1, and a second valve body section, i.e. a rear valve body section 4.
  • a first valve body section i.e. a front valve body section 1
  • a second valve body section i.e. a rear valve body section 4.
  • the rear valve body 4 has a valve chamber 10.
  • the exterior thread 8 of the front valve body section 1 is threadedly coupled to the interior thread 6 of the rear valve body section 4.
  • a joint between the valve chamber of the rear valve body section and the liquid inlet 9 form a valve seat 7.
  • the valve plug 3 is disposed inside the valve chamber 10 of the rear valve body section, and is matable with the valve seat 7 at the rear valve body section.
  • a spring 2 is disposed inside the valve chamber 10. A first end of the spring 2 is in contact with the valve plug 3, and a second end of the spring 2 is in contact with the end of the rear valve body 1 having the exterior thread.
  • valve plug can be spherical or cylindrical.
  • a first end of the valve plug that contacts with the valve seat can be hemispherical and a second end of the valve plug can be cylindrical.

Abstract

L'invention concerne une microsoupape fendue qui comprend un obturateur de soupape (3) et un corps de soupape (1,4). Le corps de soupape (1,4) est une structure fendue et comprend un corps de soupape avant (1) et un corps de soupape arrière (4). Le corps de soupape avant (1) comporte une chambre de soupape (10) qui comprend une sortie de liquide (5) à une extrémité et un filetage intérieur (6) à l'autre extrémité. Le corps de soupape arrière (4) comprend une entrée de liquide (9) à une extrémité et un filetage extérieur (8) à l'autre extrémité. Le filetage intérieur (6) du corps de soupape avant (1) est relié de manière filetée au filetage extérieur (8) du corps de soupape arrière (4). Le corps de soupape arrière (4) comprend un siège de soupape (7) au niveau de son extrémité filetée. Un obturateur de soupape (3) est situé à l'intérieur de la chambre de soupape (10), et coopère avec le siège de soupape (7) du corps de soupape arrière (4). Le corps de soupape (1,4) peut être assemblé facilement et la taille de la chambre de soupape (10) peut être modifiée en remplaçant le corps de soupape avant (1).
EP17852252.0A 2016-09-22 2017-08-11 Microsoupape fendue Withdrawn EP3515545A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610840900.6A CN106310512A (zh) 2016-09-22 2016-09-22 一种分体式微阀
PCT/CN2017/097151 WO2018054183A1 (fr) 2016-09-22 2017-08-11 Microsoupape fendue

Publications (2)

Publication Number Publication Date
EP3515545A1 true EP3515545A1 (fr) 2019-07-31
EP3515545A4 EP3515545A4 (fr) 2020-04-29

Family

ID=57820060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17852252.0A Withdrawn EP3515545A4 (fr) 2016-09-22 2017-08-11 Microsoupape fendue

Country Status (4)

Country Link
EP (1) EP3515545A4 (fr)
CN (1) CN106310512A (fr)
CA (1) CA3037979A1 (fr)
WO (1) WO2018054183A1 (fr)

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EP3515545A4 (fr) 2020-04-29
CN106310512A (zh) 2017-01-11
WO2018054183A1 (fr) 2018-03-29

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