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WO2004085896A1 - Vanne electromagnetique - Google Patents

Vanne electromagnetique Download PDF

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Publication number
WO2004085896A1
WO2004085896A1 PCT/JP2003/003566 JP0303566W WO2004085896A1 WO 2004085896 A1 WO2004085896 A1 WO 2004085896A1 JP 0303566 W JP0303566 W JP 0303566W WO 2004085896 A1 WO2004085896 A1 WO 2004085896A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
lock pin
valve body
plunger
electromagnet
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/JP2003/003566
Other languages
English (en)
Japanese (ja)
Inventor
Nozomu Kawasaki
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.)
Techno Takatsuki Co Ltd
Original Assignee
Techno Takatsuki 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 Techno Takatsuki Co Ltd filed Critical Techno Takatsuki Co Ltd
Priority to JP2004569918A priority Critical patent/JP4268942B2/ja
Priority to PCT/JP2003/003566 priority patent/WO2004085896A1/fr
Publication of WO2004085896A1 publication Critical patent/WO2004085896A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift 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
    • F16K35/00—Means to prevent accidental or unauthorised actuation

Definitions

  • the present invention relates to an electromagnetic valve. More specifically, it relates to an electromagnetic valve that controls the supply and discharge of air to an air mat or the like. Background art
  • an electromagnetic valve has been used to control the supply and discharge of air to a pneumatic device such as an air mat and air bed.
  • the conventional electromagnetic valve shown in FIG. 12 includes an electromagnet 100, a bottomed inner cylinder 101 fitted inside an excitation coil of the electromagnet 100, and an inner cylinder 1.
  • a movable valve 103 comprising a plunger supported by a compression coil spring 102 inside 01, an air introduction passage 105 and an air discharge passage 104 attached to the end face side of the electromagnet. It consists of a casing 106 formed.
  • valve body 107 when the electromagnet 100 is not energized, the valve body 107 is pressed against the valve seat 108 by the urging force of the compression coil spring 102, and the air is released. The air is prevented from flowing through the introduction path 105 and the air discharge path 104. Then, when the electromagnet 100 is energized, the movable valve 103 moves downward in FIG. 12 against the urging force of the compression coil spring 102 by the attraction force of the electromagnet 100, The valve element 107 is separated from the valve seat 108 so that air is supplied from the nozzle 109.
  • an electromagnet 200 and a bottomed shape fitted inside an exciting coil of the electromagnet 200 are used.
  • valve body 205 when the electromagnet 200 is not energized, the valve body 205 is actuated by the urging force of the compression coil spring 204 mounted inside the casing 208. It is pressed against the seat 209 to prevent air from flowing. Then, when the electromagnet 200 is energized, the plunger 203 pushes up the valve element 206 by the attraction force of the electromagnet 200 to move the valve element 205 to the valve seat 200 of the casing 208. And the air is supplied from nozzle 210.
  • the present invention has been made in view of the above circumstances, and provides an electromagnetic valve that consumes little power and can smoothly and accurately open and close a valve body without being affected by external negative pressure or positive pressure. . Disclosure of the invention
  • the electromagnetic valve according to the present invention includes: an electromagnet having a plunger; and a movable valve having a valve body disposed in a valve casing, wherein the plunger is a valve body of the movable valve by an attraction force of the electromagnet.
  • An electromagnetic valve that opens and closes a flow path in the valve casing by linearly driving the valve characterized in that the electromagnetic valve includes a lock mechanism that locks a valve body of the movable valve to a closed position.
  • the lock mechanism is
  • the hook pin operating portion is configured to release the mouth pin from the mouth pin receiving portion.
  • the lock pin is connected to the connecting rod extending from the valve body toward the plunger at an end with respect to the axial direction of the connecting rod.
  • a boss portion having an opening edge of the boss portion is in contact with an outer surface of the lock pin,
  • the opening edge of the pos portion pushes the lip pin inward to disengage the lip pin from the lock pin receiving portion, And the bottom surface of the boss portion is It is preferable that the valve is opened by pressing the connecting rod. It is preferable that a flow path is formed around the lock pin of the valve body.
  • FIG. 1 is an explanatory cross-sectional view of a solenoid valve according to an embodiment of the present invention in a state where a valve body is closed.
  • FIG. 2 is an exploded perspective view of a movable portion of the electromagnetic valve of FIG.
  • FIG. 3 is an explanatory view of the operation of the electromagnetic valve of FIG. 1, and is an explanatory side view showing a state in which the valve body is unlocked.
  • FIG. 4 is an operation explanatory view of the electromagnetic valve of FIG. 1, and is a cross-sectional explanatory view showing a state where a valve body is opened.
  • FIG. 5 is an enlarged sectional view of the lock mechanism of FIG.
  • FIG. 6 is an enlarged sectional view of a main part showing another embodiment of the electromagnetic valve of the present invention.
  • FIG. 7 is an explanatory sectional view showing still another embodiment of the electromagnetic valve of the present invention.
  • FIG. 8 is an explanatory cross-sectional view showing still another embodiment of the electromagnetic valve of the present invention.
  • FIG. 9 is an explanatory cross-sectional view showing a still further embodiment of the electromagnetic valve of the present invention in a hooked state.
  • FIG. 10 is a view of the lip pin and the lip pin receiving portion of FIG. 9 viewed from below.
  • FIG. 11 is a view of the unlocked state of the lock pin and the lip pin receiving portion of FIG. 9 as viewed from below.
  • FIG. 12 is a sectional view showing an example of a conventional electromagnetic valve.
  • FIG. 13 is a sectional view showing another example of a conventional electromagnetic valve. BEST MODE FOR CARRYING OUT THE INVENTION
  • an electromagnetic valve includes an electromagnet 1 including a cylindrical excitation coil 2, a plunger 3 disposed in the electromagnet 1, and flow paths 4 and 5.
  • a valve casing 6 having a valve body 8, a movable valve 7 having a valve body 8, and a lock mechanism 22 for locking the valve body 8 in a closed position. Have been.
  • the movable valve 7 includes a valve element 8 and a compression coil spring 10 that urges the valve element 8 in a direction to close the valve element 8 (downward in FIG. 1).
  • a compression coil spring 10 that urges the valve element 8 in a direction to close the valve element 8 (downward in FIG. 1).
  • an annular groove 17 for fitting the sealing material 11 is formed.
  • the movable valve 7 is configured to open and close the flow paths 4 and 5 by moving the valve body 8 by the attraction force of the electromagnet 1.
  • the electromagnet 1 of the present embodiment has a rectangular outer yoke 13, rectangular plate yokes 14, 15, and a space surrounded by these yokes. And an exciting coil 2 in which a copper wire is wound around a synthetic resin winding pobin 16 disposed at the center of the exciting coil 2.
  • a plunger made of a magnetic material such as steel is provided at the center of the exciting coil 2. 3 is arranged reciprocally. Further, at the center of the exciting coil 2, a stop 19 for stopping the plunger 3 at a predetermined height is provided.
  • the present invention is not limited to the electromagnet having such a configuration, and various shapes or configurations of electromagnets can be adopted as long as the plunger can reciprocate by electromagnetic force. As shown in FIGS.
  • the lock mechanism 22 of the present embodiment includes a pair of lock pins 9 connected to the valve body 8 and urged toward the inner surface of the valve casing 6.
  • a lock pin receiving portion 24 formed on the inner surface of the valve casing 6 and capable of engaging with the distal end portion 23 of the lock pin 9 when the valve body 8 is in the closed position, and provided at the distal end of the plunger 3 of the electromagnet 1.
  • Lock pin operation part 0
  • the lock pin 9 is made of, for example, a synthetic resin, stainless steel, phosphor bronze, or the like, and has a shape that is flexible.
  • the lock pin 9 is provided at the tip 25 a of a connecting rod 25 extending from the valve body 8 toward the plunger 3. It is connected to the connecting rod 25 at an angle to the axis.
  • the distal end 23 of the lock pin 9 has a substantially prismatic or substantially cylindrical shape, and slightly protrudes outward.The elasticity of the lock pin 9 causes the distal end 23 to be closed when the valve 8 is in the closed position. It is engaged with the lock pin receiving portion 24.
  • the number, shape, or material of the lock pins 9 can be appropriately selected according to various conditions such as the supply pressure of air and the specifications of the electromagnet, and is not particularly limited in the present invention.
  • the valve body 8, the connecting rod 25 and the lock pin 9 can be made by integral molding using a synthetic resin or the like.However, after the lock pin 9 is made of metal or the like, it is connected to the connecting rod 25 that has been made separately. May be.
  • the lock pin receiving portion 24 is deeply hollowed out so as to have a substantially rectangular cross section.
  • the lock pin receiving portion 24 is locked. Since the horizontal contact surface 24 a of 24 contacts the distal end portion 23, the movement of the lock pin 9 and the valve element 8 in the opening direction is reliably stopped.
  • the distal end 23 of the lock pin 9 is formed in a substantially prismatic or substantially cylindrical shape having a diameter of about 0.5 to 2 mm, and receives the distal end 23 and forms a connection with the distal end 23.
  • the dimensions of the lock pin receiver 24 are selected so as to achieve engagement.
  • the lock pin receiving portion 24 shown in FIG. 5 is deeply hollowed out so as to have a substantially rectangular cross section, and a horizontal contact surface 24 a engages the distal end portion 23 of the lock pin 9. (Abutment), but the present invention is not limited to this. W
  • the Kupin receiving portion may adopt various shapes.
  • a slope may be formed at each of the tip 31 of the lock pin 9 and the lock pin receiver 32.
  • a boss 26 having a tubular shape with a bottom is employed as the lock pin operation unit.
  • the opening edge 26 a of the boss portion 26 is in contact with the outer side surface 9 a of the lock pin 9.
  • the bottom surface 26 b of the boss 26 is slightly (for example, about 1 mm) apart from the tip 25 a of the connecting rod 25 of the valve body 8. ing.
  • the opening edge 26 a of the boss portion 26 presses the lock pin 9 inward to push the lock pin 9 into the lock pin receiving portion 2. 4 (see Figure 3).
  • the bottom surface 26 b of the boss portion 26 comes into contact with the distal end portion 25 a of the connecting rod 25 of the valve element 8 and presses the connecting rod 25.
  • the boss portion 26 has a cylindrical shape with a bottom, but the present invention is not limited to this, and various other modes can be adopted.
  • a penetrating tubular boss portion 33 is used instead of the bottomed tubular boss portion 26.
  • a projection 35 may be provided on the outer peripheral surface of the tip of the lock pin 34.
  • FIG. 7 (b) when the cylindrical boss 33 ascends together with the plunger (not shown), the boss 33 pushes the lock pin 34 inward. To disengage the lock pin 34 from the valve casing 6, and then the upper edge of the boss 33 engages the projection 35, and the boss 33 and the port The pin 34 can be raised.
  • a flow path 27 through which air passes.
  • the air can flow smoothly and accurately to the flow paths 4 and 5.
  • a lock pin is provided, which is provided with a hook pin extending inclining and a mouth pin operating section comprising a bottomed cylindrical boss.
  • the present invention is not limited thereto, and when the plunger of the electromagnet is moved in the opening direction of the valve body, the cock pin operating section is configured to detach the mouth pin from the mouth pin receiving section.
  • Various aspects may be employed.
  • the lock pin receiving portion 37 may be deformed in place of the lock pin 36 to release the lip.
  • a lock pin 36 having a protrusion 38 extending in the horizontal direction is provided below the valve element 8.
  • an opening pin receiving portion 37 made of an elastically deformable material such as a synthetic resin is provided at a lower portion of the valve casing 6, and is locked in a concave portion 39 formed in the lock pin receiving portion 37.
  • the projection 38 of the pin 36 is engaged.
  • the lock pin receiving portion 37 is inclined such that it extends outward from the concave portion 39 as it goes downward.
  • FIGS. 9 and 10 show a locked state and a state in which the air ventilation path is closed.
  • a lock pin 42 is provided below the valve body 41, and the lock pin 42 is An insertion recess 48 having an opening having a rectangular cross section is formed at the center.
  • a twisted push pin 45 fixed to the tip of the plunger 46 of the electromagnet similar to that of the above-described embodiment is inserted into the insertion recess 48.
  • the twisted push pin 48 is manufactured by spirally twisting a thin plate made of steel or the like.
  • the push pin 48 is not limited to a thin plate, but may be a twisted rod-shaped member.
  • a lock pin receiving portion 44 for locking both ends of the lock pin 42 is provided on the lower surface 50 of the valve casing 43.
  • the plunger 46 When the electromagnet is energized, the plunger 46 rises due to the attractive force of the electromagnet, and the twisted push pin 45 becomes the lock pin 42 rectangle as shown in Figs. It is inserted into the insertion recess 48 from the opening having the shape. At this time, the lock pin 42 rotates clockwise in FIG. 11 by being pressed by the twisted push pin 45, and gradually comes off the lock pin receiving portion 44, and the lock pin shown in FIG. It will be released. From the unlocked state shown in FIG. 11, the plunger 46 is further raised, and the valve element 41 is pushed up via the twisted push pin 45. At this time, the lock pin 42 stops at a position near the lower surface 50 of the valve casing 43. As a result, the air passage of the solenoid valve is completely opened, and air can be supplied.
  • the valve is actuated by the biasing force of the compression coil spring 47.
  • the body 41, the lock pin 42, the twisted push pin 45 and the plunger 46 are lowered at the same time, and the valve body 41 is closed.
  • the lock pin 42 rotates counterclockwise in FIG. 3, and the lock pin 42 again comes into contact with the lip pin receiving portion 4 4. Engaged.
  • the flow path 4 of the valve casing 6 communicates with the air pump, and the flow path 5 of the valve casing 6 is connected to the air mat. Communicated.
  • the gap between the tip 25 a of the connecting rod 25 and the bottom 26 b of the boss 26 at the tip of the plunger 3. are spaced apart, forming a void 28 (for example, about 1 mm).
  • the valve body 8 is locked so as not to move in the opening direction.
  • the valve element 8 is not affected by external negative pressure or positive pressure, and no air leakage from the valve element 8 or vibration of the valve element 8 occurs.
  • the urging force of the compression coil spring 10 in the valve casing 6 moves the valve body 8 in the direction of the plunger 3 so that the sealing material 11 and the valve seat 21 are in close contact with each other and the flow paths 4, 5 are formed. Close and shut off the air supply.
  • the distal end portion 23 of the lock pin 9 re-engages with the lock receiving portion 24, and the locked state can be maintained until the next energization.
  • the electromagnetic valve of the present invention since the electromagnetic valve of the present invention has the lock mechanism for locking the valve body of the movable valve to the closed position, air leakage or vibration noise due to external negative or positive pressure such as an air mat is generated. Generation can be prevented, and the valve can be opened and closed smoothly and accurately.
  • the biasing force of the compression coil spring can be set small, and a small and inexpensive electromagnetic valve with low power consumption can be provided.
  • the electromagnetic valve of the present invention can be used for applications such as air massaging, a bedsore prevention mat, and a pneumatic actuator, in addition to switching between supply and exhaust of a fluid to an air mat.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne une vanne électromagnétique, qui comprend un électroaimant présentant un piston plongeur, et une soupape mobile disposée dans un cache-soupape et comportant un disque de soupape. La force d'attraction de l'électroaimant fait que le piston plongeur entraîne linéairement le disque de soupape de la soupape mobile pour ouvrir ou fermer le canal d'écoulement ménagé dans le cache-soupape. La vanne électromagnétique comprend un mécanisme de verrouillage servant à verrouiller le disque de soupape de la soupape mobile, à une position fermée, ce qui permet, d'une part, d'empêcher la survenue d'une fuite d'air ou d'un son de vibration dans un matelas pneumatique ou analogue, du fait de la pression positive ou négative provenant de l'extérieur; d'autre part, d'ouvrir ou de fermer le disque de soupape en douceur et avec précision.
PCT/JP2003/003566 2003-03-25 2003-03-25 Vanne electromagnetique Ceased WO2004085896A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004569918A JP4268942B2 (ja) 2003-03-25 2003-03-25 電磁バルブ
PCT/JP2003/003566 WO2004085896A1 (fr) 2003-03-25 2003-03-25 Vanne electromagnetique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/003566 WO2004085896A1 (fr) 2003-03-25 2003-03-25 Vanne electromagnetique

Publications (1)

Publication Number Publication Date
WO2004085896A1 true WO2004085896A1 (fr) 2004-10-07

Family

ID=33045120

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/003566 Ceased WO2004085896A1 (fr) 2003-03-25 2003-03-25 Vanne electromagnetique

Country Status (2)

Country Link
JP (1) JP4268942B2 (fr)
WO (1) WO2004085896A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8665840B2 (en) 2007-01-26 2014-03-04 Sony Deutschland Gmbh User interface based on magnetic induction
US9464728B2 (en) 2012-05-08 2016-10-11 Robert Bosch Gmbh Solenoid valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430375A (en) * 1977-08-10 1979-03-06 Daiichi Seiki Kk Lock type cylinder
JPS63195479A (ja) * 1987-02-10 1988-08-12 Toyoda Mach Works Ltd 電磁制御弁
US5967186A (en) * 1997-08-07 1999-10-19 Emhart Glass S.A. Valve
US6047945A (en) * 1996-11-27 2000-04-11 Nass Magnet Gmbh Electromagnetic valve construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430375A (en) * 1977-08-10 1979-03-06 Daiichi Seiki Kk Lock type cylinder
JPS63195479A (ja) * 1987-02-10 1988-08-12 Toyoda Mach Works Ltd 電磁制御弁
US6047945A (en) * 1996-11-27 2000-04-11 Nass Magnet Gmbh Electromagnetic valve construction
US5967186A (en) * 1997-08-07 1999-10-19 Emhart Glass S.A. Valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8665840B2 (en) 2007-01-26 2014-03-04 Sony Deutschland Gmbh User interface based on magnetic induction
US9464728B2 (en) 2012-05-08 2016-10-11 Robert Bosch Gmbh Solenoid valve

Also Published As

Publication number Publication date
JP4268942B2 (ja) 2009-05-27
JPWO2004085896A1 (ja) 2006-06-29

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