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WO2018194377A1 - Vanne d'ouverture/fermeture configurée de telle sorte que la vanne fermée commute automatiquement vers un état ouvert lorsqu'une fuite d'eau est éliminée - Google Patents

Vanne d'ouverture/fermeture configurée de telle sorte que la vanne fermée commute automatiquement vers un état ouvert lorsqu'une fuite d'eau est éliminée Download PDF

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Publication number
WO2018194377A1
WO2018194377A1 PCT/KR2018/004519 KR2018004519W WO2018194377A1 WO 2018194377 A1 WO2018194377 A1 WO 2018194377A1 KR 2018004519 W KR2018004519 W KR 2018004519W WO 2018194377 A1 WO2018194377 A1 WO 2018194377A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
plunger rod
valve
bushing
opening
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.)
Ceased
Application number
PCT/KR2018/004519
Other languages
English (en)
Korean (ko)
Inventor
강찬석
여순록
김동석
백남국
서상현
김재영
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.)
MCM CO Ltd
MCM Co Ltd Korea
Original Assignee
MCM CO Ltd
MCM Co Ltd Korea
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
Priority claimed from KR1020170060141A external-priority patent/KR102012269B1/ko
Application filed by MCM CO Ltd, MCM Co Ltd Korea filed Critical MCM CO Ltd
Publication of WO2018194377A1 publication Critical patent/WO2018194377A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
    • 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
    • F16K33/00—Floats for actuation of valves or other apparatus

Definitions

  • the present invention relates to an on-off valve, and more particularly, to an on-off valve so that a malfunction of the closed valve is not generated when the leaked water is removed while the flow path of the valve is blocked due to leakage.
  • the valve is installed in a pipe for transporting a gas or a fluid of high pressure, and is selectively used to open and close the valve to be used for the purpose of controlling the transport of the fluid.
  • valves have a variety of structures depending on the intended use.
  • valve used for a water purifier normally uses a solenoid valve.
  • the solenoid valve automatically opens and closes the flow of the fluid repeatedly due to the nature of the water purifier to be flowed and shut off repeatedly.
  • Such a solenoid valve has a leak detection sensor installed to detect a leak occurring in the water purifier, and when a leak is detected by the leak detection sensor, a user is notified of a leak state by a notification or the like and is linked with a solenoid valve. To cut off the supply.
  • the solenoid valve is configured to open the flow of the fluid in the state that the power is applied, and close the flow of the fluid by shutting off the power when the leakage occurs.
  • the leakage circuit breaker operates to shut off the building power when the leak comes in contact with the power supply, which is another product that is normally powered, such as a refrigerator or a filter in a fish tank. There is a problem that another loss occurs because the power supply is cut off to the product that must be maintained.
  • Patent Registration No. 10-1239324 as a valve to shut off the supply of raw water by buoyancy rising and falling as the water leaks without using a power source.
  • the valve structure is opened and closed by using the buoyancy, buoyancy member to move up and down according to the difference of water, and the opening and closing member to move together as it moves by the buoyancy of the buoyancy member, the opening and closing member is installed through the buoyancy member
  • a plunger case a plunger rod which is accommodated in a storage space provided inside the plunger case and moves in a longitudinal direction, and is provided at a distal end of the plunger rod to a packing selectively contacting an inlet hole and to a rear end of the plunger rod
  • a plunger is provided, and a stopper is installed at an upper end of the storage space, and a spring surrounding the plunger rod is positioned between the stopper and the plunger to move the plunger together with the buoyancy member and to return the elevated plunger rod. Pruned by the elastic force of the spring provided in the storage space And one will ever with the plunger rod is lowered.
  • the spring's elastic force is set to be weaker than the magnetic force of the magnet provided in the buoyancy member so that the plunger moves up and down together as the buoyancy member moves up and down.
  • the valve has to be dismantled to artificially lower the plunger rod provided with the packing.
  • the present invention is to solve the above problems, by removing the water leakage in the water purifier by preventing the vacuum pressure is generated in the storage space of the plunger case more effectively in the open state in the valve automatically closed state To be converted.
  • the present invention is a valve consisting of a buoyancy member to move up and down as the water rises, and the opening and closing member to move together as the buoyancy of the buoyancy member moves,
  • the opening and closing member is provided with a plunger case which penetrates through the buoyancy member, a plunger rod which is accommodated in a storage space provided inside the plunger case and moves in a longitudinal direction, and is installed at the distal end of the plunger rod to selectively enter the inlet hole.
  • a packing in close contact with the plunger is provided at the rear end of the plunger rod, and a bushing is provided at the front end of the storage space so that the plunger rod can be operated vertically without moving from side to side, wherein the inner circumference of the bushing is The outer space is in close contact with the outer circumference of the plunger rod, and the outer circumference is in close contact with the inner circumference of the storage space, and the storage space is provided with a circulation portion at the inner or outer circumference of the bushing so that the raw water can be circulated in the storage space in which the plunger is accommodated. The raw water is circulated so that no vacuum pressure is generated.
  • circulation portion is provided to the inner periphery of the storage space deeper in the longitudinal direction than the position of the provided bushing of the storage space of the plunger case.
  • the cross section of the outer circumference of the plunger rod is made of a circular shape
  • the inner circumference of the bushing is made of a shape having corners such as triangle, square, hexagon, or octagon such that the circle is in close contact with the outer diameter, thereby minimizing the close contact area. In order to facilitate this and to provide a circulation portion.
  • the plunger rod is made of a metal material made of a material higher than the specific gravity of water is attached to the plunger having a magnetic, so that the plunger rod is lowered by its own weight.
  • the plunger rod is made of a synthetic resin material is provided with a spring surrounding the plunger rod between the bushing and the plunger to lower the raised plunger rod.
  • the present invention is to prevent the vacuum pressure is generated in the storage space provided with the plunger by circulating the raw water through the circulation portion provided between the bushing and the plunger case or the bushing and the plunger rod when removing the leak of the valve blocked by the leak It is to prevent malfunction of the valve.
  • FIG. 1 is a cutaway view of a conventional valve.
  • Figure 2 is a perspective view showing the overall appearance according to an embodiment of the present invention.
  • Figure 3 is a bottom perspective view showing the overall appearance according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of the valve of the present invention.
  • FIG. 5 is a cross-sectional perspective view of the valve of the present invention.
  • Figure 6 is an exploded view of the valve of the present invention.
  • Figure 7 is a cross-sectional view of the use state that the leakage flows into the inlet groove provided in the bottom frame.
  • FIG. 8 is a cross-sectional view showing a state in which the on-off valve is lifted and closed using the buoyancy to block the flow path.
  • FIG. 9 is a cross-sectional view illustrating a state in which the shutoff valve blocked in FIG. 8 is lowered and opened.
  • FIG. 10 is a cross-sectional perspective view showing a state in which a circulation part is provided at an inner circumference of a storage space provided in a plunger case;
  • the opening / closing member 200 is accommodated in the plunger case 210 installed through the buoyancy member 400 and the storage space 211 provided inside the plunger case 210 to move in the longitudinal direction. 220, a packing 230 installed at the front end of the plunger rod 220 to be in close contact with the inlet hole 321, and a plunger 240 at the rear end of the plunger rod 220.
  • a bushing 250 is provided at the front end of the storage space 211 so that the plunger rod 220 does not flow from side to side, and is operated in a vertical direction.
  • the inner circumference of the bushing 250 is a plunger rod 220.
  • the outer circumference of the outer circumference is in close contact with the inner circumference of the storage space 211, the inner circumference of the bushing 250 or so that the raw water can be circulated in the storage space 211 accommodated by the plunger 240 Closed, characterized in that the outer periphery provided with a circulation portion 270 It is an on-off valve that automatically switches to the open state when the valve removes leaks.
  • the present invention relates to a valve for automatically switching the valve shut off due to leakage when the leaked water is removed from the closed state to the open state.
  • the configuration of the present invention includes a body 100 is formed with an inlet 110 through which the raw water is introduced and an outlet 120 through which the raw water is discharged,
  • the opening and closing member 200 is installed in the body 100, and at this time, a flow path 130 through which raw water moves between the body 100 and the opening and closing member 200 is formed.
  • the holder 320 having the inlet hole 321 communicating with the flow path 130 between the body 100 and the opening / closing member 200 supports the diaphragm plate 310. And is installed on the body 100.
  • valve as described above When the valve as described above is installed in the water purifier, it is installed in the bottom frame (1) of the water purifier, as shown in Figs. More specifically, the buoyancy member 400 is installed in the indentation groove 2 formed in the bottom frame 1.
  • the inner groove 2 is formed in a shape corresponding to the buoyancy member 400, the inner diameter of the inner groove 2 is the outer diameter of the buoyancy member 400 so that the buoyancy member 400 can easily rise It is preferable to make it wider.
  • the bottom frame 1 is made to be inclined toward the inlet groove 2 so that water leaked into the inlet groove 2 into which the buoyancy member 400 is inserted as shown in FIG. 7. desirable.
  • buoyancy member 400 is installed so as to be inserted into the bottom frame (1) of the bottom of the water purifier to prevent the parts are damaged by minimizing contact with the components provided in the water purifier by the leaked water.
  • the buoyancy member 400 is preferably made of a material having a specific gravity smaller than the water so as to rise by the water.
  • the buoyancy member 400 may be made of foamed styrofoam or plastic.
  • the magnet 410 is provided inside the buoyancy member 400.
  • the magnet 410 is made of a ring shape through the center, the magnet 410 is provided in the buoyancy member 400 by the insert injection method when manufacturing the buoyancy member 400 or buoyancy member 400 After receiving the magnet 410 in the receiving portion 401 provided as the center of the end member 402 may be coupled so that the magnet 410 is not separated from the buoyancy member 400.
  • the magnet 410 is used as a means for moving the opening and closing member 200 as described later, the opening and closing member 200 is to be moved together with the buoyancy member 400.
  • the opening and closing member 400 is a plunger that is formed to move in the longitudinal direction accommodated in the interior of the plunger case 210 and the plunger case 210, the storage space 211 is formed therein as shown in FIG. A rod 220, a packing 230 installed at the front end of the plunger rod 220, and a plunger 240 installed at the rear end of the plunger rod 220 and a bushing 250 provided to surround the plunger rod 220. Is done.
  • the front end portion of the plunger rod 220 indicates the direction in which the body 100 is formed, and the rear end portion is described in the direction in which the buoyancy member 400 is installed.
  • the rear end of the plunger case 210 is installed to penetrate through the buoyancy member 400, and the front end is coupled to the body 100.
  • the diaphragm plate 310 having a holder is positioned at the joint portion between the front end portion of the plunger case 210 and the body 100 to selectively open and close the flow of raw water.
  • the diaphragm plate 310 is preferably made of silicon, rubber.
  • the diaphragm plate made of rubber material is positioned without a separate packing portion between the distal end portion of the plunger case 210 and the body 100 so that no leakage occurs through the joint portion.
  • the plunger 240, the bushing 250, the plunger rod 220, and the packing 230 are sequentially received in the storage space 211 of the plunger case 210.
  • the bushing 250 is provided at an outer circumference of the long axis 221 of the plunger rod 220, so that the plunger rod 220 does not flow to the left and right sides, but in the vertical direction, that is, to the holder 320. It is used as a guide means for precisely moving the formed inlet hole 321 is located direction.
  • the raw water flows into or discharges from the lower end of the storage space 211 of the plunger case 210, that is, the portion in which the plunger 240 is accommodated, thereby preventing a malfunction due to the pressure difference between the inside and the outside.
  • a groove frame or a protruding frame is formed on the outer circumference of the bushing 250 so that the raw water can be circulated to the storage space 211 as described above, and the circulation part 270 is interposed between the inner circumference of the storage space 211 and the bushing. It is to be equipped.
  • the inner circumference of the bushing 250 is formed in a shape having an edge, that is, a triangle, a square, a pentagon, and so on, thereby minimizing a close contact with the outer circumference of the plunger rod 220, thereby increasing the plunger rod 220.
  • the descent is to facilitate operation.
  • a groove frame or a protruding frame is formed at an inner circumference of the storage space 211 deeper than the position of the bushing 250 provided as the storage space 211 of the plunger case 210 to form a circulation part ( 270 may be provided.
  • the circulation unit 270 is to prevent the pressure difference between the inside and outside by allowing the raw water to be circulated to the lower end of the receiving space 211 of the plunger case 210.
  • the plunger rod is located in the center of the storage space when the protrusion frame is formed For this reason, it is preferable that it consists of at least 3 or more pieces.
  • the plunger 240 has a property of a magnet.
  • the plunger 240 may be made of a rod-shaped magnet.
  • the plunger 240 and the magnet 410 should be installed so that the polarity formed in the plunger 240 and the polarity of the magnet 410 provided in the buoyancy member 400 face each other with different polarities.
  • the magnet 410 installed in the buoyancy member 400 is preferably located below the portion where the plunger 240 is located.
  • the magnetic field is generated between the magnet 410 and the plunger 240 installed in such a structure.
  • the attraction force and the repulsive force are generated between the magnet 410 and the plunger 240 by the magnetic field.
  • the predetermined position means a central position of a force on which the attraction force and the repulsive force act.
  • the plunger 240 is fixed by the buoyancy member 400 provided with the magnet 410 and the attraction force and repulsive force.
  • the plunger 240 fixed by the magnet 410 of the buoyancy member 400 is to move the plunger 240 associated with it as the magnet 410 moves together when the buoyancy member 400 moves.
  • the plunger 240 moves upward with the buoyancy member 400. At this time, the plunger rod 220 and the packing 230 are connected to the plunger 240. Will also move together.
  • the flow path 130 is closed by being in close contact with the inlet hole 321 located above the packing 230 to block the supply of raw water.
  • buoyancy generated in the buoyancy member 400 may be removed to open the closed flow path 130.
  • a discharge port that is selectively opened and closed may be provided to easily drain the leak from the inlet groove 2 formed in the bottom frame (1).
  • the magnet 410 installed in the buoyancy member 400 is formed to have a ring shape and is installed to face the polarity different from the plunger 240 so as to move together by fixing the plunger 240. It is not limited.
  • the plunger 240 is made of a metal material, only the repulsive force is generated in the magnet 410 and the plunger 240 provided in the buoyancy member 400, and the plunger 240 is generated when the buoyancy member 400 moves. It can be moved upward by pulling together.
  • the magnet 410 provided in the buoyancy member 400 is made of a metal material and the plunger 240 may have the same effect as described above even when made of a magnet.
  • the plunger rod 220 is made of a metal material which is higher than the specific gravity of water and generates a repulsive force with the plunger 240 made of a magnet, the plunger 240 and the plunger rod 220 are interlocked together without providing a separate connecting means. It can be.
  • the plunger rod 220 and the plunger 240 are higher than the specific gravity of water, when the buoyancy member 400 descends, the plunger rod 220 and the plunger 240 may be automatically lowered by their own weight.
  • the plunger rod 220 is made of a material having a specific gravity lower than the specific gravity of water, and when the plunger 240 is lowered when the plunger 240 is not fixed, the plunger rod 220 is also lowered.
  • a spring 260 surrounding the long axis 221 of the plunger rod 220 is positioned between the bushing 250 and the plunger 240, one end of the spring 260 is supported by the bushing 250 and the other end is plunger. It is to be supported by the support end provided in the rod (220).
  • the bushing 250 is fixed to the inner circumference of the plunger case 210, so that the elastic force of the spring 260 acts in the direction of the lower end, that is, the plunger 240, so that the plunger rod 220 is lowered. It is so long.
  • the plunger 240 rising together as the buoyancy member 400 is lifted by the buoyancy is made to elevate while winning the elastic force of the spring 260.
  • the buoyancy force is made to exert a force larger than the elastic force.
  • the magnet 410 and the plunger 240 fixed by the magnetic field also exert a greater force than the elastic force, so that the plunger 240 moves together as the buoyancy member 400 rises.
  • a valve is installed so that the buoyancy member 400 is seated in the inlet groove 2 formed in the bottom frame 1 of the water purifier.
  • valve may be stably fixed to the bottom frame 1 by the fixing leg 212 provided to the outside of the plunger case 210.
  • Such a valve is connected to a raw water supply pipe for supplying raw water to a water purifier.
  • the raw water supply pipe for supplying raw water is connected to the inlet 110 formed in the body 100 of the valve is the raw water is transferred through the outlet 120.
  • the leak occurs from the water purification tank or leaks generated from each part or each part is connected to the inlet groove 2 of the bottom frame (1).
  • the bottom frame 1 is formed to be inclined so that the leak easily flows in the indentation groove 2 direction.
  • the buoyancy member 400 is raised by the buoyancy according to the leakage flow into the inlet groove (2).
  • the plunger 240 of the opening and closing member 200 interlocked with the buoyancy member 400 is a magnet 410 As they are fixed by the magnetic field, they move together.
  • the flow path 130 formed between the inlet 110 and the outlet 120 is closed to prevent the water from leaking by blocking the supply of raw water.
  • the packing 230 is separated from the inlet hole 321 by removing the water flowing into the inlet groove 2 so as to open the closed passage 130 so that the packing 230 is separated from the inlet hole 321.
  • the raw water flows through the circulation portion 270 provided in the bushing 250 coupled to the long axis 221 of the plunger rod 220 so that the plunger rod 220 with the packing 230 is easily lowered. It is.
  • the plunger rod 220 is to be lowered more easily due to the water pressure of the raw water flowing into the receiving space 211.
  • the valve when the leaked water is removed, the valve can be automatically converted from the closed state to the open state more effectively.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Float Valves (AREA)

Abstract

La présente invention concerne une vanne d'ouverture/fermeture et, plus particulièrement, une vanne d'ouverture/fermeture dans laquelle, à condition que le canal de la vanne soit bloqué en raison d'une fuite d'eau, la vanne fermée continue à fonctionner correctement lorsque l'eau ayant fui est éliminée. À cet effet, la présente invention concerne une vanne comprenant : un élément de flottabilité qui se déplace vers le haut/vers le bas lorsque le niveau d'eau monte ; et un élément d'ouverture/fermeture qui se déplace conjointement lorsque l'élément de flottabilité se déplace par flottabilité. L'élément d'ouverture/fermeture comprend : un boîtier de piston installé pour pénétrer dans l'élément de flottabilité ; une tige de piston contenue dans un espace contenant disposé à l'intérieur du boîtier de piston et configurée pour se déplacer dans la direction longitudinale ; un emballage installé sur la partie d'extrémité avant de la tige de piston et poussé sélectivement contre un trou d'entrée ; un piston disposé sur l'extrémité arrière de la tige de piston ; et une douille disposée à l'extrémité avant de l'espace contenant de telle sorte que la tige de piston puisse fonctionner dans la direction verticale vers le haut/vers le bas sans bouger librement vers la gauche/vers la droite. Le bord périphérique interne de la douille est poussé contre le bord périphérique externe de la tige de piston, et le bord périphérique externe de la douille est poussé contre le bord périphérique interne de l'espace contenant. Une partie de circulation est disposée sur le bord périphérique interne ou le bord périphérique externe de la douille de telle sorte que de l'eau brute puisse circuler dans l'espace contenant dans lequel le piston est contenu, ce qui garantit que, en faisant circuler l'eau brute vers l'espace contenant, aucune pression négative ne se produise. De plus, une partie de circulation est disposée sur le bord périphérique interne de l'espace contenant pour être plus profonde dans la direction longitudinale que la position de la douille disposée dans l'espace contenant du boîtier de piston. De plus, le bord périphérique externe de la tige de piston a une section configurée selon une forme circulaire, et le bord périphérique interne de la douille est configuré selon une forme présentant des angles, tel qu'un triangle, un quadrilatère, un hexagone, un octogone, ou similaire, ce qui permet un contact étroit avec le diamètre extérieur de la forme circulaire. En conséquence, non seulement la zone de contact étroit est réduite au minimum, ce qui facilite les mouvements vers le haut/vers le bas, mais une partie de circulation est également prévue. De plus, la tige de piston est constituée d'un matériau métallique constitué d'un matériau ayant une densité spécifique supérieure à celle de l'eau et est fixé au piston ayant une aimantation telle que la tige de piston descende en raison de son propre poids. De plus, lorsque la tige de piston est constituée d'un matériau de résine synthétique, un ressort est disposé entre la douille et le piston de façon à entourer la tige de piston de telle sorte que la tige de piston soulevée soit abaissée.
PCT/KR2018/004519 2017-04-20 2018-04-18 Vanne d'ouverture/fermeture configurée de telle sorte que la vanne fermée commute automatiquement vers un état ouvert lorsqu'une fuite d'eau est éliminée Ceased WO2018194377A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2017-0050865 2017-04-20
KR20170050865 2017-04-20
KR1020170060141A KR102012269B1 (ko) 2017-04-20 2017-05-15 폐쇄된 밸브가 누수를 제거할 경우 자동으로 개방된 상태로 변환되는 누수감지 차단밸브
KR10-2017-0060141 2017-05-15

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WO2018194377A1 true WO2018194377A1 (fr) 2018-10-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024234090A1 (fr) * 2023-05-15 2024-11-21 The Royal Institution For The Advancement Of Learning/Mcgill University Échantillonneur de fluide et ensemble soupape pour celui-ci

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KR20080006249A (ko) * 2006-07-12 2008-01-16 한삼코라(주) 탄성과 자성을 이용한 부력식 정수위밸브
KR20090047719A (ko) * 2007-11-08 2009-05-13 최영수 탱크로리용 자동폐쇄밸브
US20090126804A1 (en) * 2007-10-23 2009-05-21 Woongjin Codway Co., Ltd. Device for controlling water level
KR20120035427A (ko) * 2010-10-05 2012-04-16 정휘동 부력을 이용하여 개폐되는 밸브

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR20080006249A (ko) * 2006-07-12 2008-01-16 한삼코라(주) 탄성과 자성을 이용한 부력식 정수위밸브
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