CN102380150B - Pneumatic gas-controlled breathing machine - Google Patents
Pneumatic gas-controlled breathing machine Download PDFInfo
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- CN102380150B CN102380150B CN201110295592.0A CN201110295592A CN102380150B CN 102380150 B CN102380150 B CN 102380150B CN 201110295592 A CN201110295592 A CN 201110295592A CN 102380150 B CN102380150 B CN 102380150B
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Abstract
The invention relates to a pneumatic gas-controlled breathing machine which takes gas as a power source. High-pressure gas forms periodic operation through a pneumatic valve so as to supply a proper tidal volume and breathing frequency for a patient. The pneumatic gas-controlled breathing machine only needs to be connected with the gas source so as to supply the proper tidal volume and breathing frequency for the patient through a reducing valve and a control valve of the pneumatic gas-controlled breathing machine self, and the control valve of the pneumatic gas-controlled breathing machine can adjust the breathing frequency and the tidal volume. A normally open valve is closed when the normally open valve controls the pressure of a gas cavity body to rise to a set value, control gas in the gas cavity body is controlled by a normally closed valve and is discharged from an air-resistor simultaneously when the normally open valve is closed, and the normally closed valve recovers to be in the closed state, so that gas supply at the rear end of the normally closed valve is stopped, the time slot from the moment to the next time of ventilation of the normally closed valve is the time for the patient to breathe, and then the process from inhaling to exhaling of the patient is finished. The pneumatic gas-controlled breathing machine works repeatedly in the way.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of Pneumatic gas-controlled breathing machine.
Background technology
CN94111392.2 has announced the former palm type first-aid respirator of a kind of single gas, its object be to provide a kind of volume little, lightweight, only need that a source of the gas just can normally be worked, is easy to carry, the single air-supply palm type first-aid respirator of easy to operate, applicable field first aid.This technical scheme is: described single air-supply palm type first-aid respirator is to aim at various breathings in emergency circumstances to rescue and design, mainly comprise the defeated population of source of the gas, airflow delivery outlet, output flow vapour lock, relief valve, air-control device and gas control amplifier etc., there is the advantages such as volume is little, lightweight, a source of the gas of need just can normally be worked and be easy to carry, easy to operate, cheap.Its weak point is: respiratory frequency and the tidal volume that can not accurately regulate patient.
Summary of the invention
The object of this invention is to provide little, lightweight, easy to operate, the applicable field first aid of a kind of volume and only need connect source of the gas, air relief valve and control valve by Pneumatic gas-controlled breathing machine itself can be supplied with the suitable respiratory frequency of patient and tidal volume, and control valve can carry out the Pneumatic gas-controlled breathing machine of respiratory frequency and tidal volume adjusting.
Technical solution of the present invention is described Pneumatic gas-controlled breathing machine, its special character is, comprise: the pipeline that the source of the gas gas of input setting pressure is communicated with through intake interface, this pipeline connects respectively air pressure and is greater than the low pressure alarm valve setting value and do not report to the police, the first air relief valve, normally close valve is accessed respectively through tee T in the rear end of the first air relief valve, the second air relief valve connecting successively, normally open valve, this normally open valve accesses normally close valve by the road, in pipeline between normally open valve and normally close valve, be connected the first vapour lock for aerofluxus, in the time that normally close valve control air cavity pressure rises is opened normally close valve to when setting value, the gas that normally close valve front end is assigned in the first air relief valve rear end divides two-way in rear end through tee T through normally closed valve body air flue, one road gas is supplied with tidal volume needle-valve by the road, after Pressure gauge, mix with air and supply with patient by the venturi of Pneumatic gas-controlled breathing machine outside, check valve, three air relief valve of another road gas through connecting successively supplied with respectively normally open valve and the respiratory frequency needle-valve of controlling air cavity by the road, when the pressure rise of normally open valve control air cavity is closed normally open valve during to setting value, when closing along with normally open valve, the control gas of normally close valve control air cavity discharges from the first vapour lock again, normally close valve recovers closed condition, stop the air feed of normally close valve rear end thereupon, extremely normally close valve duration of ventilation section is patient's expiratory duration next time this moment, complete the air-breathing process to exhaling of patient, Pneumatic gas-controlled breathing machine periodic duty like this.
As preferably: described normally open valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, be positioned at the core assembly of the gas flow path suit of valve body, on valve body, radially offer the gas passage with gas flow path vertical connection, the centre of bottom and valve body is offered respectively and gas passage, the extraneous gas flow path connecting, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts, described core assembly is stretched into air chamber and is connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated bullet of this bar, bullet lower end cylinder on the suit composition surface star-like sealing ring set and that bullet surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
As preferably: the position, the center of circle of described diaphragm screw is arranged with a concave spherical surface, the head end of the corresponding diaphragm screw of masthead end concave spherical surface is a hemisphere.
As preferably: described normally close valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, be positioned at the core assembly of the gas flow path suit of valve body, on valve body, radially offer the gas passage with gas flow path vertical connection, the centre of bottom and valve body is offered respectively and gas passage, the extraneous gas flow path connecting, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts, described core assembly is stretched into air chamber and is connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated back taper body of this bar, back taper body lower end cylinder on the suit composition surface star-like sealing ring set and that inverted cone surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
As preferably: described diaphragm screw center of circle portion is arranged with a concave spherical surface, the head end of the corresponding diaphragm screw of masthead end concave spherical surface is a hemisphere.
As preferably: described low pressure alarm valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, be positioned at the core assembly of the gas flow path suit of valve body, on valve body, radially offer the gas passage with gas flow path vertical connection, the centre of bottom and valve body is offered respectively and gas passage, the extraneous gas flow path connecting, gas passage outlet pipe is provided with low pressure alarming mechanism, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts.
As preferably: described low pressure alarming mechanism is by the O RunddichtringO being connected successively with the gas passage outlet pipe of valve body, the second vapour lock, the 2nd O RunddichtringO, cover plate, form with the duckbilled flap valve of cover plate interference fit and the lid being located on duckbilled flap valve.
As preferably: described core assembly stretches into air chamber by upper end and is connected to the bar on diaphragm unit, the prominent circle of radial convex ring-type of bar middle-end molding, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated bullet of this bar, bullet lower end cylinder on the suit composition surface star-like sealing ring set and that bullet surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
As preferably: described core assembly stretches into air chamber by upper end and is connected to the bar on diaphragm unit, the prominent circle of radial convex ring-type of bar middle-end molding, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated back taper body of this bar, back taper body lower end cylinder on the suit composition surface star-like sealing ring set and that inverted cone surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
As preferably: described diaphragm screw center of circle portion is arranged with a concave spherical surface, and spool top is a hemisphere corresponding to the head end of diaphragm screw concave spherical surface.
Compared with prior art, advantage of the present invention is:
1, the control valve of Pneumatic gas-controlled breathing machine can carry out respiratory frequency and tidal volume adjusting.
2, the second spring under first spring of often opening (closing) valve body upper membrane chip module, upper cover of Pneumatic gas-controlled breathing machine, core assembly, spool, make this Pneumatic gas-controlled breathing machine not need diaphragm unit to drive core assembly action, only need the second spring matching film plate assembly to complete spool action, this is often driven (closing) valve and has advantages of that structure is little, valve core diameter is little, movable resistance is little, spool moves fast.
3, little, the movable resistance of the diameter of the low pressure alarming valve core of Pneumatic gas-controlled breathing machine is little, spool action is fast, it is accurate to report to the police, error is little.
Brief description of the drawings
Fig. 1 is the operation principle schematic diagram of Pneumatic gas-controlled breathing machine of the present invention.
Fig. 2 is the exploded view of normally open valve of the present invention.
Fig. 3 is the profile of normally open valve of the present invention.
Fig. 4 is the exploded view of normally close valve of the present invention.
Fig. 5 is the profile of normally close valve of the present invention.
Fig. 6 is the exploded view of low pressure alarm valve of the present invention.
Fig. 7 is the profile of low pressure alarm valve of the present invention.
Primary clustering symbol description:
Pipeline 11 Venturi tube 12 low pressure alarm valve 2 first air relief valve 31 second air relief valve 32
The 3rd air relief valve 33, check valve 34, normally close valve 4, valve body 41, cannelure 411, upper cover 42, column 421 apertures 422, bottom 43, circular heavy stand 431, diaphragm unit 44, diaphragm 441, screw 442, concave spherical surface 4421 nuts 443, the first spring 451, the second spring 452, core assembly 46, bar 461, prominent circle 4611 hemispheres 4612, back taper body 462, O RunddichtringO 463, star-like sealing ring 464, air chamber 47, gas flow path 48, gas passage 49, hemisphere 4612, normally open valve 5, valve body 51, cannelure 511, upper cover 52, column 521, aperture 522, bottom 53, heavy stand 531, diaphragm unit 54, diaphragm 541, screw 542, concave spherical surface 5421, nut 543, the first spring 551, the second spring 552, core assembly 56, bar 561, prominent circle 5611, hemisphere 5612, bullet 562, O RunddichtringO 563, star-like sealing ring 564, air chamber 57, gas flow path 58, gas passage 59, the first vapour lock 61, Pressure gauge 62, tidal volume needle-valve 7, respiratory frequency needle-valve 8, low pressure alarming mechanism 9, the one O RunddichtringO 91, the second vapour lock 93, the 2nd O RunddichtringO 92, cover plate 94, duckbilled flap valve 95, lid 96, .
Detailed description of the invention
The present invention is further detailed in conjunction with the accompanying drawings below:
Fig. 1 shows one embodiment of the present of invention.
Refer to shown in Fig. 1, in the present embodiment, described Pneumatic gas-controlled breathing machine, comprise: input air pressure is greater than the source of the gas gas of 2.8bar pressure through the pipeline 11 of intake interface connection, this pipeline 11 connects respectively that air pressure is greater than 2.8bar and the low pressure alarm valve 2 of not reporting to the police, the first air relief valve 31, normally close valve 4 is accessed respectively through tee T (not shown) in the rear end of the first air relief valve 31, the second air relief valve 32 connecting successively, normally open valve 5, this normally open valve 5 is the normally close valve 4 of 11 Access Control air cavities by the road, in pipeline 11 between normally open valve 5 and normally close valve 4, be connected the first vapour lock 61 for aerofluxus, open normally close valve 4 in the time that normally close valve 4 is controlled air cavity pressure rises to 0.2MPa left and right time, the gas that normally close valve 4 front ends are assigned in the first air relief valve 31 rear ends divides two-way in rear end through tee T (not shown) through normally close valve 4 valve body air flues, one road gas 11 is supplied with tidal volume needle-valve 7 by the road, Venturi tube 12 by Pneumatic gas-controlled breathing machine outside after Pressure gauge 62 becomes 50% oxygen concentration to supply with patient oxygen mix, check valve 34, three air relief valve 33 of another road gas through connecting successively 11 supplied with normally open valve 5 and the respiratory frequency needle-valve 8 of controlling air cavity respectively by the road, the pressure rise of controlling air cavity when normally open valve 5 is closed normally open valve 5 during to 0.2MPa left and right, when closing along with normally open valve 5, the control gas that normally close valve 4 is controlled air cavity discharges from the first vapour lock 61 again, normally close valve 4 recovers closed condition, stop the air feed of normally close valve 4 rear ends thereupon, extremely normally close valve 4 duration of ventilation sections are patient's expiratory duration next time this moment, complete the air-breathing process to exhaling of patient, Pneumatic gas-controlled breathing machine periodic duty like this.
Refer to Fig. 2, shown in Fig. 3, described Pneumatic gas-controlled breathing machine normally open valve 5 is by valve body 51, the upper cover 52 that valve body 51 two ends connect respectively and bottom 53, the air chamber 57 of the inner chamber molding of upper cover 52 and valve body 51, air chamber 57 is positioned at the cannelure 511 that upper cover 52 and the joint portion of valve body 51 are outwards convexly equipped with ringwise, the diaphragm unit 54 of cannelure 511 interior setting-ins, the column 521 that the centre of upper cover 52 air chambers is convexly equipped with, be sleeved on the first spring 551 on column 521, be positioned at the core assembly 56 of gas flow path 58 suits of valve body 51, on valve body 51, radially offer the gas passage 59 with gas flow path 58 vertical connections, bottom 53 is offered respectively and is run 59 with gas passage with the centre of valve body 51, the extraneous gas flow path 58 connecting, the aperture 522 that upper cover 52 1 sides are offered forms, described diaphragm unit 54 is made up of diaphragm 541, screw 542, nut 543, and wherein, screw 542 is fastening through diaphragm 541 and nut 543, described core assembly 56 is stretched into air chamber 57 and is connected to the prominent circle 5611 of radial convex ring-type of bar 561 on diaphragm unit 54, bar 561 middle-end molding by upper end, isolation air chambers 57 of these prominent circle 5611 tops suits and the O RunddichtringO 563 of gas flow path 58, with the integrated bullet 562 of this bar 561, bullet 562 lower end cylinders on suit the second spring 552, the bottom 53 that are connected on the circular heavy stand 531 of bottom form with the set star-like sealing ring 564 fitting with bullet 562 surfaces in composition surface of valve body 51.The position, the center of circle of described diaphragm screw 542 is arranged with a concave spherical surface 5421, and the head end of bar 561 tops corresponding diaphragm screw concave spherical surface 5421 is a hemisphere 5612.
Refer to Fig. 4, shown in Fig. 5, described Pneumatic gas-controlled breathing machine normally close valve 4 is by valve body 41, the upper cover 42 that valve body 41 two ends connect respectively and bottom 43, the air chamber 47 of the inner chamber molding of upper cover 42 and valve body 41, air chamber 47 is positioned at the cannelure 411 that upper cover 42 and the joint portion of valve body 41 are outwards convexly equipped with ringwise, the diaphragm unit 44 of cannelure 411 interior setting-ins, the column 421 that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring 451 on column 421, be positioned at the core assembly 46 of gas flow path 48 suits of valve body 41, on valve body 41, radially offer the gas passage 49 with gas flow path 48 vertical connections, bottom 43 and the centre of valve body 41 are offered respectively and gas passage 49, the extraneous gas flow path 48 connecting, the aperture 422 that upper cover 42 1 sides are offered forms, described diaphragm unit 44 is made up of diaphragm 441, screw 442, nut 443, and wherein, screw 442 is fastening through diaphragm 441 and nut 443, described core assembly 46 is stretched into air chamber 47 and is connected to the prominent circle 4611 of radial convex ring-type of bar 461 on diaphragm unit 44, bar 461 middle-end molding by upper end, isolation air chambers 47 of these prominent circle 4611 tops suits and the O RunddichtringO 463 of gas flow path 48, with the integrated back taper body 462 of this bar 461, back taper body 462 lower end cylinders on the suit composition surface star-like sealing ring 464 set and that back taper body 462 surfaces fit that is connected to the second spring 452, bottom and 43 valve bodies 41 on the circular heavy stand 431 of bottom form.Described diaphragm screw 442 center of circle portions are arranged with a concave spherical surface 4421, and the head end of bar 461 tops corresponding diaphragm screw concave spherical surface 4421 is a hemisphere 4612.
Refer to Fig. 6, shown in Fig. 7, the described low pressure alarm valve of described Pneumatic gas-controlled breathing machine is by valve body 51, the upper cover 52 that valve body 51 two ends connect respectively and bottom 53, the air chamber 57 of the inner chamber molding of upper cover 52 and valve body 51, air chamber 57 is positioned at the cannelure 511 that upper cover 52 and the joint portion of valve body 51 are outwards convexly equipped with ringwise, the diaphragm unit 54 of cannelure 511 interior setting-ins, the column 521 that the centre of upper cover 52 air chambers is convexly equipped with, be sleeved on the first spring 551 on column 521, be positioned at the core assembly 56 of gas flow path 58 suits of valve body 51, on valve body 51, radially offer the gas passage 59 with gas flow path 58 vertical connections, bottom 53 and the centre of valve body 51 are offered respectively and gas passage 59, the extraneous gas flow path 58 connecting, gas passage 59 outlet pipes are provided with low pressure alarming mechanism 9, the aperture 522 that upper cover 52 1 sides are offered forms, described diaphragm unit 54 is made up of diaphragm 541, screw 542, nut 543, and wherein, screw 542 is fastening through diaphragm 541 and nut 543.
Described low pressure alarming mechanism 9 is by the O RunddichtringO 91 being connected successively with gas passage 59 outlet pipes of valve body 51, the second vapour lock 93, the 2nd O RunddichtringO 92, cover plate 94, form with the duckbilled flap valve 95 of cover plate 94 interference fit and the lid 96 being located on duckbilled flap valve 95.
Described core assembly can be selected the one in following two kinds of structures as required:
Refer to shown in Fig. 2, Fig. 3, described core assembly 56 is stretched into air chamber 57 and is connected to the prominent circle 5611 of radial convex ring-type of bar 561 on diaphragm unit 54, bar 561 middle-end molding by upper end, isolation air chambers 57 of these prominent circle 5611 tops suits and the O RunddichtringO 563 of gas flow path 58, with the integrated bullet 562 of this bar 561, bullet 562 lower end cylinders on suit the second spring 552, the bottom 53 that are connected on the circular heavy stand 531 of bottom form with the set star-like sealing ring 564 fitting with bullet 562 surfaces in composition surface of valve body 51.
Refer to shown in Fig. 4, Fig. 5, described core assembly 46 is stretched into air chamber 47 and is connected to the prominent circle 4611 of radial convex ring-type of bar 461 on diaphragm unit 44, bar 461 middle-end molding by upper end, isolation air chambers 47 of these prominent circle 4611 tops suits and the O RunddichtringO 463 of gas flow path 48, with the integrated back taper body 462 of this bar 461, back taper body 462 lower end cylinders on the suit composition surface star-like sealing ring 464 set and that back taper body 462 surfaces fit that is connected to the second spring 452, bottom and 43 valve bodies 41 on the circular heavy stand 431 of bottom form.
Operation principle: air pressure is greater than 2.8bar low pressure alarm valve 2 and does not report to the police in the time that oxygen enters, You Yi road oxygen is through the first air relief valve 31 simultaneously, divide again two-way: a road is to normally close valve 4, one passes by the second air relief valve 32 controls air cavity after normally open valve 5 to normally close valve 4, the first vapour lock 61 is now in aerofluxus, in the time that normally close valve 4 is controlled air cavity pressure rises to 0.2MPa, can open normally close valve 4 time, the gas that normally close valve 4 front ends are assigned in the first air relief valve 31 rear ends can divide two-way in rear end by normally close valve 4 valve body air flues, one road oxygen is supplied with tidal volume needle-valve 7, after Pressure gauge 8, finally become 50% oxygen concentration to supply with patient oxygen mix by the venturi pipeline 12 of Pneumatic gas-controlled breathing machine outside, another road gas is crossed check valve 34 and is supplied with respectively normally open valve 5 after 33 points of two-way of the 3rd air relief valve and control air cavity and respiratory frequency needle-valve 8, the pressure rise that normally open valve 5 is controlled air cavity is closed normally open valve 5 during to 0.2MPa, the control gas that now normally close valve 4 is controlled air cavity is along with closing of normally open valve 5 discharged from the first vapour lock 61 again simultaneously, normally close valve 4 now recovers closed condition has stopped the air feed of normally close valve 4 rear ends thereupon, and extremely normally close valve 4 duration of ventilation sections are patient's expiratory duration next time this moment.Be more than the air-breathing process to exhaling of patient, Pneumatic gas-controlled breathing machine periodic duty like this.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention scope change and modify, and all should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a Pneumatic gas-controlled breathing machine, it is characterized in that, comprise: the pipeline that the source of the gas gas of input setting pressure is communicated with through intake interface, this pipeline connects respectively air pressure and is greater than the low pressure alarm valve setting value and do not report to the police, the first air relief valve, normally close valve and the second air relief valve are accessed respectively through tee T in the rear end of the first air relief valve, the second air relief valve is communicated with normally open valve by the road, this normally open valve accesses normally close valve by the road, in pipeline between normally open valve and normally close valve, be connected the first vapour lock for aerofluxus, in the time that normally close valve control air cavity pressure rises is opened normally close valve to when setting value, the gas that normally close valve front end is assigned in the first air relief valve rear end divides two-way in rear end through tee T through normally closed valve body air flue, one road gas is supplied with tidal volume needle-valve by the road, after Pressure gauge, mix with air and supply with patient by the Venturi tube of Pneumatic gas-controlled breathing machine outside, check valve, three air relief valve of another road gas through connecting successively supplied with respectively normally open valve and the respiratory frequency needle-valve of controlling air cavity by the road, when the pressure rise of normally open valve control air cavity is closed normally open valve during to setting value, when closing along with normally open valve, the control gas of normally close valve control air cavity discharges from the first vapour lock again, normally close valve recovers closed condition, stop the air feed of normally close valve rear end thereupon, extremely normally close valve duration of ventilation section is patient's expiratory duration next time this moment, complete the air-breathing process to exhaling of patient, Pneumatic gas-controlled breathing machine periodic duty like this.
2. Pneumatic gas-controlled breathing machine according to claim 1, it is characterized in that: described normally open valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, bottom and valve body are offered and are run through the gas flow path connecting with the external world after bottom along axial line, on valve body, radially offer the gas passage with gas flow path vertical connection, be positioned at the core assembly of the gas flow path suit at valve body position, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts, described core assembly is stretched into air chamber and is connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated bullet of this bar, bullet lower end cylinder on the suit composition surface star-like sealing ring set and that bullet surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
3. Pneumatic gas-controlled breathing machine according to claim 2, is characterized in that: the position, the center of circle of described screw is arranged with a concave spherical surface, and the head end of the corresponding described screw concave spherical surface of masthead end is a hemisphere.
4. Pneumatic gas-controlled breathing machine according to claim 1, it is characterized in that: described normally close valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, bottom and valve body are offered and are run through the gas flow path connecting with the external world after bottom along axial line, on valve body, radially offer the gas passage with gas flow path vertical connection, be positioned at the core assembly of the gas flow path suit at valve body position, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts, described core assembly is stretched into air chamber and is connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated back taper body of this bar, back taper body lower end cylinder on the suit composition surface star-like sealing ring set and that inverted cone surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
5. Pneumatic gas-controlled breathing machine according to claim 4, is characterized in that: described screw center of circle portion is arranged with a concave spherical surface, and the head end of the corresponding described screw concave spherical surface of masthead end is a hemisphere.
6. Pneumatic gas-controlled breathing machine according to claim 1, it is characterized in that: described low pressure alarm valve is by valve body, the upper cover that valve body two ends connect respectively and bottom, the air chamber of the inner chamber molding of upper cover and valve body, air chamber is positioned at the cannelure that the joint portion of upper cover and valve body is outwards convexly equipped with ringwise, the diaphragm unit of setting-in in cannelure, the column that the centre of upper gas-covering chamber is convexly equipped with, be sleeved on the first spring on column, bottom and valve body are offered and are run through the gas flow path connecting with the external world after bottom along axial line, on valve body, radially offer the gas passage with gas flow path vertical connection, be positioned at the core assembly of the gas flow path suit at valve body position, gas passage outlet pipe is provided with low pressure alarming mechanism, the aperture composition that upper cover one side is offered, described diaphragm unit is made up of diaphragm, screw, nut, and wherein, screw is through diaphragm and fastening nuts.
7. Pneumatic gas-controlled breathing machine according to claim 6, is characterized in that: described low pressure alarming mechanism is by the O RunddichtringO being connected successively with the gas passage outlet pipe of valve body, the second vapour lock, the 2nd O RunddichtringO, cover plate, form with the duckbilled flap valve of cover plate interference fit and the lid being located on duckbilled flap valve.
8. Pneumatic gas-controlled breathing machine according to claim 6, it is characterized in that: described core assembly is stretched into air chamber and be connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated bullet of this bar, bullet lower end cylinder on the suit composition surface star-like sealing ring set and that bullet surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
9. Pneumatic gas-controlled breathing machine according to claim 6, it is characterized in that: described core assembly is stretched into air chamber and be connected to the prominent circle of radial convex ring-type of bar on diaphragm unit, the molding of bar middle-end by upper end, the isolation air chamber of this prominent circle top suit and the O RunddichtringO of gas flow path, with the integrated back taper body of this bar, back taper body lower end cylinder on the suit composition surface star-like sealing ring set and that inverted cone surface fits that is connected to the second spring, bottom and valve body on the circular heavy stand of bottom form.
10. Pneumatic gas-controlled breathing machine according to claim 6, is characterized in that: described screw center of circle portion is arranged with a concave spherical surface, and spool top is a hemisphere corresponding to the head end of described screw concave spherical surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110295592.0A CN102380150B (en) | 2011-09-28 | 2011-09-28 | Pneumatic gas-controlled breathing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110295592.0A CN102380150B (en) | 2011-09-28 | 2011-09-28 | Pneumatic gas-controlled breathing machine |
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| CN102380150A CN102380150A (en) | 2012-03-21 |
| CN102380150B true CN102380150B (en) | 2014-07-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102793959B (en) * | 2012-08-14 | 2015-01-21 | 苏州品诺维新医疗科技有限公司 | Respirator air path system for stabilizing air and oxygen mixed tidal volume |
| CN102895727A (en) * | 2012-10-27 | 2013-01-30 | 河南辉瑞生物医电技术有限公司 | Pneumatic control system capable of separately adjusting inspiration time and expiration time |
| CN105363105B (en) * | 2014-08-15 | 2017-09-05 | 深圳市安保科技有限公司 | A kind of Pneumatic electrical control aerating system and its vent method |
| CN104329498B (en) * | 2014-09-29 | 2016-07-06 | 山西虹安科技股份有限公司 | Portable positive pressure automatic resuscitator decompressor |
| CN108057188A (en) * | 2017-12-29 | 2018-05-22 | 上海宝亚安全装备股份有限公司 | A kind of outlet valve of adjustable Opening pressure |
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| US3844280A (en) * | 1971-08-19 | 1974-10-29 | Philips Corp | Medical ventilator including a fail-safe device |
| CN2239820Y (en) * | 1995-11-16 | 1996-11-13 | 孟庆友 | Multi-purpose portable pneumatic respirator |
| CN101618246A (en) * | 2008-07-02 | 2010-01-06 | 北京谊安医疗系统股份有限公司 | Respirator system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999016491A1 (en) * | 1997-09-26 | 1999-04-08 | Airon Corporation | Pneumatically controlled multifunction medical ventilator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844280A (en) * | 1971-08-19 | 1974-10-29 | Philips Corp | Medical ventilator including a fail-safe device |
| CN2239820Y (en) * | 1995-11-16 | 1996-11-13 | 孟庆友 | Multi-purpose portable pneumatic respirator |
| CN101618246A (en) * | 2008-07-02 | 2010-01-06 | 北京谊安医疗系统股份有限公司 | Respirator system |
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| CN102380150A (en) | 2012-03-21 |
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