CN100593425C - Multifunctional safety valve - Google Patents
Multifunctional safety valve Download PDFInfo
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- CN100593425C CN100593425C CN 200710306303 CN200710306303A CN100593425C CN 100593425 C CN100593425 C CN 100593425C CN 200710306303 CN200710306303 CN 200710306303 CN 200710306303 A CN200710306303 A CN 200710306303A CN 100593425 C CN100593425 C CN 100593425C
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Abstract
A multi-functional safety valve comprises a valve body, an air-oxygen mixing cavity, a control gas chamber and an exhaust chamber, an air-oxygen input, an air suction port, an exhaust port and a gas control port are arranged on the valve body, the air-oxygen input and the air suction port are communicated with the air-oxygen mixing cavity, the exhaust port is communicated with the exhaust chamber,the gas control port is communicated with the control gas chamber; an air suction valve and a pressure reducing valve are arranged in the body, the air suction valve is sealed or the air-oxygen mixing cavity and the exhaust chamber are conducted by the action of the pressure reducing valve, the multi-functional safety valve further comprises: a two-position three-way electromagnetic valve, a first end thereof is connected with a gas source, a second end is connected with the gas control port and a third end is communicated with atmosphere; a pressure sensor, which is arranged in the air-oxygen mixing cavity and transmits a signal to a microprocessor according to the gas pressure in the air-oxygen mixing cavity; and a microprocessor, which controls the on-off of the two-position three-wayelectromagnetic valve according to the signal which is transmitted by the pressure sensor. Therefore, when the air suction pressure is super high or super low, a power supply is switched off and otheraccidents occur, the multi-functional safety valve can form the automatic protection, thus protecting the safety of a user of a respirator.
Description
Technical field
The present invention relates to a kind of multifunctional safety valve, be used to ensure the gas control valve of respirator user safety.
Background technology
Respirator is the safety that will ensure user as a kind of medicative armarium most important condition, occurs guaranteeing all the time under the various fortuitous events that at equipment it is the most basic safety requirements that user is freely ventilated.Respirator in use can run into power failure, pressure of inspiration(Pi) superelevation, the ultralow fortuitous events such as (source of the gas are stopped the supple of gas or steam) of pressure of inspiration(Pi).When above serious situation occurring, the measure of taking usually is the artificial gas circuit that is connected that disconnects with the patient, and the patient is communicated with atmosphere, and the basic autonomous respiration of guarantee patient can not suffocate or its its dangerous situation the patient because of the generation of machine reason.But owing to need manually go to disconnect the gas circuit that is connected with the patient when fortuitous event occurring, thereby there will be two kinds of situations: perhaps medical personnel increase labor intensity because of monitoring constantly, and perhaps the patient is because of monitoring the ineffective breathing danger that takes place.The gas control valve of at present common guarantee respirator user safety mostly use simple relief valve or, can't when running into power failure, pressure of inspiration(Pi) superelevation or fortuitous event such as ultralow, play a protective role.
Summary of the invention
The objective of the invention is to provide a kind of multifunctional safety valve, and it can form automatic protection when fortuitous events such as generation pressure of inspiration(Pi) superelevation or ultralow and machine outage, thereby ensures the safety of respirator user.
For this reason, the present invention is by the following technical solutions:
A kind of multifunctional safety valve, comprise valve body, be provided with sky oxygen hybrid chamber, control air chamber and exhaust chamber in the valve body, valve body is provided with air-in, oxygen input port, air entry, air vent, control QI KOU, air-in, oxygen input port and air entry all communicate with empty oxygen hybrid chamber, air vent communicates with exhaust chamber, and the control QI KOU communicates with the control air chamber; Inlet valve and air relief valve are housed in the body, and by air relief valve action make the inlet valve sealing or/empty oxygen hybrid chamber of conducting and exhaust chamber, wherein, described multifunctional safety valve also comprises: the two-bit triplet electromagnetic valve, its first termination source of the gas, the described control QI KOU of second termination, the 3rd end communicates with atmosphere; Pressure transducer is installed in the sky oxygen hybrid chamber, sends signal according to the air pressure in the empty oxygen hybrid chamber to described microprocessor; And microprocessor, the break-make of the described two-bit triplet electromagnetic valve of signal controlling that sends according to described pressure transducer.
Optimal way is, described pressure transducer comprises taking over a business, spring and microswitch; Describedly take over a business to contact, promoted and the compression spring by sky oxygen hybrid chamber internal gas pressure with spring; Microswitch is connected with spring, and microswitch is triggered and sends described signal to described microprocessor when spring compresses.Further, that takes over a business also is provided with the lining dish with contacted the tossing about of spring, offers pore on the lining dish, the lining dish and take over a business between be gripped with the relief valve diaphragm.And microswitch has the contact between the spring coil that stretches into spring.
In above-mentioned multifunctional safety valve, described inlet valve is arranged in the valve body, and two ends communicate with empty oxygen hybrid chamber and exhaust chamber respectively, comprise valve port and stage clip; Described air relief valve is installed in the control air chamber, comprises relief pressure valve cartridge and decompression valve gap, and relief pressure valve cartridge is located at the air-breathing valve port place of inlet valve, and the stage clip elasticity butt with inlet valve is used to open or close inlet valve.
Optimal way is that the lateral edge towards described inlet valve of described relief pressure valve cartridge is provided with seal membrane.
Adopt above-mentioned multifunctional safety valve, when empty oxygen mixes the gas pressure superelevation of intracavity, pressure transducer will send signal and give microprocessor, the latter controls electromagnetic valve and is off-state, the control gas of control air chamber is discharged, cause inlet valve to be opened, cause the gases at high pressure of the mixed intracavity of sky oxygen to arrange to atmosphere, make the air pressure of the mixed intracavity of sky oxygen recover normal by exhaust chamber.
In addition, multifunctional safety valve also comprises: be used to take out or/put into the air-breathing valve gap of described inlet valve and air relief valve; And be used to take out or/put into the safe valve gap of pressure transducer.
Preferably, keep high voltage control gas and the empty oxygen of supply of controlling air chamber and mix the gas source in chamber in same source of the gas.Therefore, when source of the gas was not enough, because the gas source of keeping the highly compressed control gas of control air chamber and supplying with the mixed chamber of empty oxygen is in same source of the gas, mixed intracavity of then empty oxygen and exhaust chamber communicated, and ensure that patient's breathing communicates with atmosphere.
In addition, described two-bit triplet electromagnetic valve preferably cuts off the power supply open in usual.Like this, when power-off condition took place, electromagnetic valve was off-state, and control gas row to atmosphere, is not kept because the control air chamber is controlled air pressure, and hybrid chamber communicates with air vent, so patient respiratory just communicates with atmosphere automatically.
To sum up; the invention has the beneficial effects as follows: owing to ensure in conjunction with electricity, gas, mechanical three; so no matter run into fortuitous events such as power failure, pressure of inspiration(Pi) superelevation, pressure of inspiration(Pi) be ultralow, all can form automatic protection, thereby can at utmost reduce the risk factor of user.
Description of drawings
Fig. 1 is the valve body internal structure cross-sectional schematic of multifunctional safety valve of the present invention;
Fig. 2 is the valve body external structure schematic perspective view of multifunctional safety valve of the present invention;
Fig. 3 is the fundamental diagram of multifunctional safety valve of the present invention.
The specific embodiment
Describe the preferred embodiments of the present invention with reference to the accompanying drawings in detail.
Please refer to Fig. 1, shown in Figure 2, wherein Fig. 1 is the valve body internal structure cross-sectional schematic of multifunctional safety valve of the present invention, and Fig. 2 is the valve body external structure schematic perspective view of multifunctional safety valve of the present invention.The present invention is a kind of multifunctional safety valve, and it comprises valve body 20, pressure transducer, microprocessor (CPU) and two-bit triplet electromagnetic valve (Fig. 3 described later).
Be provided with sky oxygen hybrid chamber A, control air chamber B and exhaust chamber C in the above-mentioned valve body 20.Valve body 20 is provided with air-in 17, oxygen input port 18, air entry 16, air vent 15, control QI KOU 2.Wherein the two ends of air-in 17 connect empty oxygen hybrid chamber A and air source respectively, are used for to empty oxygen hybrid chamber A input air; The two ends of oxygen input port 18 are connected to sky oxygen hybrid chamber A and source of oxygen, are used for to empty oxygen hybrid chamber A input oxygen; The two ends of air entry 16 are connected to patient and empty oxygen hybrid chamber A, are used for the empty oxygen gas mixture in the empty oxygen hybrid chamber A is inputed to the patient; The two ends of air vent 15 are connected to patient and exhaust chamber C, so that patient's expiration is discharged to exhaust chamber C; Control QI KOU 2 one ends communicate with control air chamber B, and the other end is connected with above-mentioned two-bit triplet electromagnetic valve.
Multifunctional safety valve of the present invention also comprise inlet valve, air relief valve and be used to take out or/put into the air-breathing valve gap 7 of this inlet valve and air relief valve.This inlet valve is arranged in the valve body 20, and its two ends communicate with empty oxygen hybrid chamber A and exhaust chamber C respectively, comprises valve port 6 and stage clip 1.This air relief valve is installed in the control air chamber B, and air relief valve comprises relief pressure valve cartridge 5 and decompression valve gap 4, and relief pressure valve cartridge 5 is located at air-breathing valve port 6 places of inlet valve, and the stage clip 1 elasticity butt with inlet valve is used to open or close inlet valve.Preferably, the lateral edge towards inlet valve of described relief pressure valve cartridge 5 is provided with seal membrane 3, so that keep good sealing property.
Above-mentioned pressure transducer is installed in the sky oxygen hybrid chamber A, and on relief valve, be provided for taking out or putting into the safe valve gap 11 of this pressure transducer, the output of pressure transducer is connected in microprocessor (CPU) by the pressure sensor signal line 19 shown in Fig. 2, is controlled the break-make of this two-bit triplet electromagnetic valve by microprocessor.Particularly, as shown in Figure 1, pressure transducer comprises taking over a business 10, spring 12 and microswitch 14.Take over a business 10 and be placed in safe valve gap 11 inboards, the right side of empty oxygen hybrid chamber A also is provided with lining dish 8, offer pore on the lining dish 8, lining dish 8 and take over a business 10 between also insert and put relief valve diaphragm 9, spring 12 and microswitch 14 are placed in the safe valve gap 11, take over a business 10 and touch mutually with spring 12, promoted and compression spring 12 by the air pressure in the sky oxygen hybrid chamber A, the contact of microswitch 14 stretches between the spring coil of spring 12, and microswitch 14 is triggered during spring 12 compressions.
One termination source of the gas of above-mentioned two-bit triplet electromagnetic valve, another termination control QI KOU 2, the three ends communicate with atmosphere.
Below in conjunction with Fig. 3 its operation principle is described.
Air and oxygen enter the mixed chamber A of empty oxygen in the valve body 20 via air-in 17 and oxygen input port 18, and control gas enters control air chamber B in the valve body 20 via the two-bit triplet electromagnetic valve from control QI KOU 2.Under the normal condition, control air chamber B place keeps high pressure by control QI KOU 2 input continuous flows, and relief pressure valve cartridge 5 is pressed down, and makes relief pressure valve cartridge 5 and inlet valve valve port 6 places form sealing, and the mixed gas at the mixed A place, chamber of empty oxygen successfully leads to the patient by air entry 16.
On the other hand, when the pressure in the mixed chamber A of empty oxygen exceeds normal pressure, this air pressure can be by the pore on the lining dish 8, promoting 10 through relief valve diaphragm 9 moves right and compresses spring 12, thereby trigger microswitch 14, microswitch 14 is sent signal has pressure sensor signal line 19 to send CPU unexpectedly, CPU just controls electromagnetic valve and is off-state, the control gas that inserts control QI KOU 2 is discharged, cause the pressure at B place to descend, the stage clip 1 of inlet valve is with relief pressure valve cartridge 5 jack-up of air relief valve, relief pressure valve cartridge 5 no longer forms sealing with inlet valve valve port 6 places, mixed chamber A of the oxygen of having leisure and exhaust chamber C are communicated with,, make the mixed A place, chamber of sky oxygen air pressure recover normal so the gases at high pressure in the mixed chamber A of empty oxygen pass through exhaust chamber C row to atmosphere.
In addition, as the insufficient situation of source of the gas, owing to keep the high voltage control gas at control air chamber B place and supply with empty oxygen and mix the gas source at A place, chamber in same source of the gas, so the air pressure at control air chamber B place is lower, so stage clip 1 same jack-up relief pressure valve cartridge 5, relief pressure valve cartridge 5 no longer forms sealing with inlet valve valve port 6 places, mixed chamber A of sky oxygen and exhaust chamber C are communicated, thereby the breathing that ensures the patient communicates with atmosphere.
Moreover if during the situation that takes place to have a power failure because of power supply deficiency (exhausting as the respirator stand-by power supply), because the two-bit triplet electromagnetic valve of control gas is that outage is open in usual, promptly electromagnetic valve is off-state under the situation of not energising, so can arrange control gas to atmosphere.Because control air chamber B place has not had control air pressure to keep, patient respiratory has just led to atmosphere automatically.
By above explanation as can be known, the present invention ensures in conjunction with electricity, gas, mechanical three, above-mentioned any situation occurs and all can form automatic protection, by this cover system, can at utmost reduce the risk factor of user.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. multifunctional safety valve, comprise valve body, be provided with sky oxygen hybrid chamber, control air chamber and exhaust chamber in the valve body, valve body is provided with air-in, oxygen input port, air entry, air vent, control QI KOU, air-in, oxygen input port and air entry all communicate with empty oxygen hybrid chamber, air vent communicates with exhaust chamber, and the control QI KOU communicates with the control air chamber; Inlet valve and air relief valve are housed in the valve body, and by air relief valve action make the inlet valve sealing or/empty oxygen hybrid chamber of conducting and exhaust chamber, it is characterized in that:
Described multifunctional safety valve also comprises:
The two-bit triplet electromagnetic valve, its first termination source of the gas, the described control QI KOU of second termination, the 3rd end communicates with atmosphere; And
Pressure transducer and microprocessor, described pressure transducer is installed in the sky oxygen hybrid chamber, sends signal according to the air pressure in the empty oxygen hybrid chamber to described microprocessor, and described microprocessor is according to the break-make of the described two-bit triplet electromagnetic valve of signal controlling of described pressure transducer transmission, wherein
Described inlet valve is arranged in the valve body, and two ends communicate with empty oxygen hybrid chamber and exhaust chamber respectively, comprise valve port and stage clip;
Described air relief valve is installed in the control air chamber, comprises relief pressure valve cartridge and decompression valve gap, and relief pressure valve cartridge is located at the air-breathing valve port place of inlet valve, and the stage clip elasticity butt with inlet valve is used to open or close inlet valve;
And wherein, the gas source of keeping the high voltage control gas of control air chamber and supplying with the mixed chamber of empty oxygen is in same source of the gas, and described two-bit triplet electromagnetic valve is that outage is open in usual.
2. multifunctional safety valve according to claim 1 is characterized in that,
Described pressure transducer comprises taking over a business, spring and microswitch;
Describedly take over a business to contact, promoted and the compression spring by sky oxygen hybrid chamber internal gas pressure with spring;
Microswitch is connected with spring, and microswitch is triggered and sends described signal to described microprocessor when spring compresses.
3. multifunctional safety valve according to claim 2 is characterized in that,
That takes over a business also is provided with the lining dish with contacted the tossing about of spring, offers pore on the lining dish, the lining dish and take over a business between be gripped with the relief valve diaphragm.
4. multifunctional safety valve according to claim 3 is characterized in that,
Described microswitch has the contact between the spring coil that stretches into spring.
5. multifunctional safety valve according to claim 1 is characterized in that,
The lateral edge towards described inlet valve of described relief pressure valve cartridge is provided with seal membrane.
6. multifunctional safety valve according to claim 5 is characterized in that,
Multifunctional safety valve also comprises: be used to take out or/put into the air-breathing valve gap of described inlet valve and air relief valve; And be used to take out or/put into the safe valve gap of pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710306303 CN100593425C (en) | 2007-06-28 | 2007-12-28 | Multifunctional safety valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720169491.8 | 2007-06-28 | ||
| CN200720169491 | 2007-06-28 | ||
| CN 200710306303 CN100593425C (en) | 2007-06-28 | 2007-12-28 | Multifunctional safety valve |
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| CN101310790A CN101310790A (en) | 2008-11-26 |
| CN100593425C true CN100593425C (en) | 2010-03-10 |
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| CN 200710306303 Active CN100593425C (en) | 2007-06-28 | 2007-12-28 | Multifunctional safety valve |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766861B (en) * | 2008-12-29 | 2012-09-26 | 北京谊安医疗系统股份有限公司 | Gas mixing module and breathing machine and anesthesia machine with same |
| CN102266613B (en) * | 2010-12-31 | 2014-02-26 | 北京谊安医疗系统股份有限公司 | Airway control device for medical breathing apparatus |
| CN102580233B (en) * | 2011-01-11 | 2013-08-28 | 孙文辉 | Medical electromagnetic valve with magnetic fluid |
| CN102500029B (en) * | 2011-09-28 | 2015-01-21 | 于邦仲 | Diaphragm type respiratory flow rhythm control air valve |
| CN102406976B (en) * | 2011-09-28 | 2015-03-11 | 于邦仲 | Respiratory flow rhythm control gas valve |
| CN102500024B (en) * | 2011-12-01 | 2014-06-25 | 于邦仲 | Flow detection system of respirator |
| CN102500025B (en) * | 2011-12-01 | 2014-04-09 | 于邦仲 | Anti-suffocation free aspiration system of respirator |
| CN103182142B (en) * | 2011-12-30 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | Mixed oxygen valve |
| CN103182137B (en) * | 2011-12-30 | 2016-03-02 | 北京谊安医疗系统股份有限公司 | Gas control valve |
| CN103182143B (en) * | 2011-12-30 | 2015-09-30 | 北京谊安医疗系统股份有限公司 | Tourie shunting device |
| CN103318161B (en) * | 2013-07-08 | 2015-12-02 | 瑞立集团瑞安汽车零部件有限公司 | A kind of intercepter valve (IV) |
| CN103656904B (en) * | 2013-11-29 | 2016-03-16 | 航宇救生装备有限公司 | With the electronic type oxygen regulator of multi-functional air valve |
| CN111701121B (en) * | 2020-06-10 | 2022-08-02 | 吉林大学第一医院 | ICU assisted respiration device with adjustable |
-
2007
- 2007-12-28 CN CN 200710306303 patent/CN100593425C/en active Active
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| CN101310790A (en) | 2008-11-26 |
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