Summary of the invention
The present invention is directed to the defect that outlet valve is opened by the gas that existing respirator must rely on patient to breathe out, it is provided thatA kind of active automatically controlled outlet valve, the outlet valve of the present invention can be implemented in patient's air-breathing when terminating to need to exhale, willOutlet valve automatically opens up, to reduce the resistance of patient's exhaled gas, and the work of breathing of less patient.
The outlet valve that the present invention provides includes valve port, block piece, electromagnetism part and Magnet, and described block piece is positioned at valve port,Described block piece and electromagnetism part connect；Described electromagnetism part includes coil, and when described coil electricity or power-off, electromagnetism part drivesBlock piece, makes valve port open or close.
Specifically, assembly of the invention is when coil electricity, and hot-wire coil moves in magnetic field, make electromagnetism part away from Magnet,So that block piece Guan Bi valve port；During described coil blackout, this power disappears, and makes electromagnetism by elastic component or other powerPart resets, thus opens the valve port of outlet valve；
Or during coil electricity, hot-wire coil moves in magnetic field, make electromagnetism part near Magnet so that block piece Guan BiValve port；During described coil blackout, this power disappears, and makes electromagnetism part reset by elastic component or other power, thus opensThe valve port of outlet valve.
Preferably, during described coil electricity, described coil drive electromagnetism part to deviate from or convergence Magnet direction motion,Thus realize the opening and closing of the valve port of outlet valve.
Preferably, described automatically controlled outlet valve also includes elastic component, described elastic component compressed when described coil electricity orStretching.
Preferably, described elastic component is arranged between valve body plate and electromagnetism part.
Preferably, described elastic component is spring.
Preferably, described electromagnetism part includes that thimble and plunger tip, described coil are wound on plunger tip, described thimble and blockingPart connects.
Preferably, described outlet valve also includes that fairlead, one end of described thimble and block piece connect, and the other end stretches intoIn fairlead.
Preferably, described block piece includes that diaphragm and diaphragm catch, described diaphragm catch and electromagnetism part connect.
Preferably, described diaphragm is gel silica membrane, and described diaphragm catch is sheet metal.
Present invention also offers another kind of active type electric control outlet valve, design and aforementioned schemes existence that this valve is concrete are poorDifferent.
The outlet valve of the program includes valve port, block piece, valve body plate, coil and electromagnetism part, and described block piece is positioned at valveAt Kou, described block piece and electromagnetism part connect；Make during described coil electricity electromagnetism part away from or near valve port, and then makeValve port opens or closes.
Preferably, described electromagnetism part includes that thimble, described thimble and block piece connect, and described electromagnetism part is provided with magneticFerrum or soft magnetic material.
Preferably, described automatically controlled outlet valve also includes elastic component, described elastic component compressed when described coil electricity orStretching.
Preferably, described automatically controlled outlet valve also includes elastic component, described elastic component compressed when described coil electricity orStretching.
Preferably, described elastic component is arranged between valve body plate and electromagnetism part.
Preferably, described elastic component is spring.
Preferably, described block piece includes that diaphragm and diaphragm catch, described diaphragm catch and electromagnetism part connect.
Preferably, described diaphragm is gel silica membrane, and described diaphragm catch is sheet metal.
Preferably, described outlet valve also includes that fairlead, one end of described thimble and block piece connect, and the other end stretches intoIn fairlead.
In said structure, when arranging Magnet on electromagnetism part, the magnetic field produced during coil electricity can make magnet movement, i.e.Magnet away from or near valve port, and then valve port opens or closes.And in order to strengthen magnetic field, it is also possible at aforementioned coilIn soft magnet material is set.
Assembly of the invention can be implemented in patient's air-breathing when terminating to need to exhale, and is automatically opened up by outlet valve, to reduceThe resistance of patient's exhaled gas, the work of breathing of less patient, contribute to alleviating the state of an illness, improve cure rate.
Detailed description of the invention
The following is the preferred embodiments of the present invention, its only with explanation of the invention and and unrestricted.
See Fig. 1 and Fig. 2, the outlet valve that the present invention provides include valve port 1, block piece, valve body plate, electromagnetism part andMagnet 10, described block piece includes that diaphragm 2 and diaphragm catch 3, described block piece and electromagnetism part connect, described electricityMagnetic part includes plunger tip 7 and thimble 4, and plunger tip 7 is provided with coil 8.Described diaphragm 2 is gel silica membrane, described filmSheet catch 3 is sheet metal.
Described outlet valve also includes that fairlead, one end of described thimble 4 and block piece connect, and the other end stretches into guidingIn set 9, described coil is wound on plunger tip 7.Thimble 3 and plunger tip 7 are fixed together.Thimble 4 and plunger tip 7Diagram right and left can be directed at valve body plate 5, fairlead 9 with coil 8 to move upward simultaneously.Described outlet valveAlso enter to include that spring 6, described spring 6 are arranged between plunger tip and valve body plate.
By Lorentz force law, hot-wire coil can produce power in magnetic field, and when in expiratory phase, outlet valve needs to closeClose, then in coil 8, lead to the electric current of assigned direction, and hot-wire coil is under the action of a magnetic field of Magnet 10, producesMake its power to left movement, when, after the active force that this power overcomes spring 6 to compress, thimble 4 being made to head on diaphragm gearThe mouth end seal of valve port 1 the most to the left, and is lived by sheet 3 band dynamic diaphragm 2 so that the gas that respirator provides entersIn patient's lung.And terminate in inspiratory phase, when client need is exhaled, disconnecting the electricity of coil 8, coil 8 produces simultaneouslyAmpere force disappear, the power that spring 6 is compressed disappears, thus obtains diastole, its left end owing to being kept off by valve body plate 5,Its right-hand member impeller thimble, plunger tip 7, coil 8 can only move right together, actively the valve port of outlet valve opened,The expiration being not required to patient promotes diaphragm 2, does not has resistance, smooth aerofluxus, reduces the work of breathing of patient, improves patient and relaxesAppropriateness, contributes to alleviating the state of an illness, improves cure rate.
Obvious, during described coil electricity, coil moves in magnetic field and drives electromagnetism part to move to breathing valve port, thusBlock piece is made to close valve port, and compression spring 6；During described coil blackout, corresponding electromagnetic force disappears, spring 6 timesRestore shape, thus open the valve port of outlet valve.Certainly may be otherwise and be designed as described coil and pass to reciprocal electricityStream, makes coil when exhaling with air-breathing to different direction motions, thus does not realizes the switch of valve port by elastic component.
For this device, it is also possible to outside coil is arranged on electromagnet, and Magnet is set in electromagnet, this MagnetActed on by magnetic field force when coil electricity, its can also realize drive block piece thus realize valve port open orClose.
For the magnetic field of intensifier coil, soft magnetic bodies can be set targetedly.And electromagnet can also be not provided with individuallyMagnet, and soft magnetic bodies is set, it can also realize the opening and closing of valve port by whether being energized.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this areaFor art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, madeAny modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.