CN111271489A - Pneumatic combination valve for oxygenerator - Google Patents
Pneumatic combination valve for oxygenerator Download PDFInfo
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- CN111271489A CN111271489A CN202010159189.4A CN202010159189A CN111271489A CN 111271489 A CN111271489 A CN 111271489A CN 202010159189 A CN202010159189 A CN 202010159189A CN 111271489 A CN111271489 A CN 111271489A
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- air passage
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- push rod
- valve
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- 239000007789 gas Substances 0.000 claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 29
- 239000002808 molecular sieve Substances 0.000 claims abstract description 27
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 42
- 239000012528 membrane Substances 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 2
- 230000001743 silencing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a pneumatic combination valve for an oxygen generator, which comprises a pilot electromagnetic valve for controlling a gas circuit switch, a cover plate fixedly arranged below the pilot electromagnetic valve, a valve body fixedly arranged below the cover plate and a push rod assembly arranged in the valve body, wherein the side surface of the valve body is provided with a gas inlet for inputting air, a gas outlet for discharging nitrogen, an A port communicated with a molecular sieve cylinder and a B port communicated with the molecular sieve cylinder, and the gas inlet, the gas outlet, the A port and the B port are positioned on the same side surface of the valve body. According to the technical scheme provided by the invention, the air passages of the port A and the port B are specially designed, so that a cavity is formed in the port A and the port B, an impedance silencing effect is realized, the gas switching and exhaust noise of the pneumatic combination valve is effectively reduced, and the working noise of the whole molecular sieve oxygen generation system is further reduced.
Description
Technical Field
The invention relates to the technical field of pneumatic valves, in particular to a pneumatic combination valve for an oxygenerator.
Background
A plurality of household oxygenerators are available in the market, and the use characteristics of the household oxygenerators are different due to different oxygen generation principles. The oxygen generation principle of the household oxygen generator comprises: 1. the principle of the molecular sieve; 2. the principle of a macromolecular oxygen-enriched membrane; 3. water electrolysis principle; 4. chemical reaction oxygen-generating principle. The molecular sieve oxygen generator is the only mature oxygen generator with international and national standards.
A molecular sieve oxygen production system, also called as a molecular sieve Pressure Swing Adsorption (PSA) oxygen production system, takes environmental air as a raw material by a Pressure Swing Adsorption (PSA) method, and under the conditions of normal temperature and low pressure, utilizes the characteristic that the adsorption capacity of a molecular sieve for nitrogen (adsorbate) in the air is increased when the molecular sieve is pressurized and the adsorption capacity for the nitrogen in the air is reduced when the molecular sieve is depressurized to form a rapid cycle process of pressurized adsorption and depressurized desorption, so that oxygen and nitrogen in the air are separated, carbon dioxide, gaseous acid, other gaseous oxides and the like in the air belong to substances with strong molecular polarity, and the molecular sieve is difficult to pass, so that the purity of the oxygen produced reaches more than 93% v/v.
The scheme of the existing molecular sieve oxygen generation system comprises a pneumatic combination valve and an oxygen generation assembly, the pneumatic combination valve used on the existing molecular sieve oxygen generation system has large noise in the air intake and exhaust processes, so that the noise of the whole molecular sieve oxygen generation system is increased, the use comfort of a user is greatly reduced, and the user experience is poor.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the pneumatic combination valve for the oxygen generator, so that the noise in the gas switching and exhausting process of the pneumatic combination valve is effectively reduced, and the use experience of a molecular sieve oxygen generation system is improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention provides a pneumatic combination valve for an oxygen generator, which comprises a pilot electromagnetic valve for controlling a gas circuit switch, a cover plate fixedly arranged below the pilot electromagnetic valve, a valve body fixedly arranged below the cover plate and a push rod assembly arranged in the valve body, wherein the side surface of the valve body is provided with a gas inlet for inputting air, a gas outlet for discharging nitrogen, an A port communicated with a molecular sieve cylinder and a B port communicated with the molecular sieve cylinder; the port B comprises a third air passage and a fourth air passage, the third air passage is communicated with the fourth air passage, and the diameter of the third air passage is larger than that of the fourth air passage.
In a further aspect of the above scheme, the first air passage, the second air passage, the third air passage and the fourth air passage are all cylindrical air passages.
In a further aspect of the above scheme, the first air passage and the second air passage are of an integrally formed structure, and the third air passage and the fourth air passage are of an integrally formed structure.
According to a further scheme of the technical scheme, the valve further comprises a front cover plate, the front cover plate is covered on the side face where the opening A of the valve body is located, a second air passage communicated with the first air passage, a fourth air passage communicated with the third air passage, an air inlet and an air outlet are formed in the front cover plate, the air inlet and the air outlet are located in the middle area of the front cover plate in the vertical direction, and the second air passage and the fourth air passage are located in two side areas of the front cover plate in the transverse direction.
The further scheme of the scheme is that the exhaust port and the air inlet are arranged in parallel along the transverse direction, and the exhaust port is positioned above the air inlet; the port A is positioned on one side of the exhaust port, the port B is positioned on the other side of the exhaust port, and the port A and the port B are positioned on the same horizontal line
A further scheme of the above scheme is that a push rod cavity for accommodating the push rod assembly is arranged inside the valve body, the push rod assembly comprises an upper sealing assembly, a push rod, a lower sealing assembly and a fixing device, the upper sealing assembly is clamped at the upper end of the push rod, the lower sealing assembly is clamped at the lower end of the push rod, and the fixing device is arranged below the lower sealing assembly.
The further scheme of the scheme is that the upper sealing assembly comprises an upper sealing cover and an upper membrane, wherein the sealing cover is arranged at the upper end of the cavity of the push rod, and the upper membrane is clamped with the push rod; the lower sealing assembly comprises a lower sealing cover and a lower membrane, wherein the sealing cover is arranged at the lower end of the push rod cavity; the fixing device is a clamp spring.
According to a further scheme of the scheme, a first vent hole is formed in the central area of the upper sealing cover, and a first sealing ring is arranged on the periphery of the first vent hole.
Preferably, the number of the push rod cavities is 2, and the number of the push rod assemblies is 2
Compared with the prior art, the technical scheme of the invention has the following advantages and beneficial effects: the invention provides a pneumatic combination valve for an oxygen generator, which comprises a pilot electromagnetic valve for controlling a gas circuit switch, a cover plate fixedly arranged below the pilot electromagnetic valve, a valve body fixedly arranged below the cover plate and a push rod assembly arranged in the valve body, wherein the side surface of the valve body is provided with a gas inlet for inputting air, a gas outlet for discharging nitrogen, an A port communicated with a molecular sieve cylinder and a B port communicated with the molecular sieve cylinder; the port B comprises a third air passage and a fourth air passage, the third air passage is communicated with the fourth air passage, and the diameter of the third air passage is larger than that of the fourth air passage. According to the technical scheme provided by the invention, the air passages of the port A and the port B are specially designed, so that a cavity is formed in the port A and the port B, an impedance silencing effect is realized, the gas switching and exhaust noise of the pneumatic combination valve is effectively reduced, and the working noise of the whole molecular sieve oxygen generation system is further reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a pneumatic combination valve in an embodiment;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic perspective view of a pneumatic combination valve in another embodiment;
FIG. 5 is a full sectional view of FIG. 4;
FIG. 6 is a front view of FIG. 4;
fig. 7 is a sectional view taken along line B-B in fig. 6.
In the figure: 1-a pilot electromagnetic valve; 2-cover plate; 3-an exhaust port; 4-an air inlet; 5-A port; 51-a first airway; 52-a second airway; 6-valve body; 7-port B; 71-third airway; 72-fourth airway; 8-front cover plate; 911-left upper sealing cover; 912-right upper seal cap; 921-left upper membrane; 922-right upper membrane, 931-left first vent; 932-right first vent; 101-left push rod; 102-right push bar; 11-a fixture; 21-lower sealing cover; 22-lower diaphragm.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Examples
As shown in fig. 1 to 7, the present embodiment provides a pneumatic combination valve for an oxygenerator, including a pilot electromagnetic valve 1 for controlling an air circuit switch, a cover plate 2 fixedly disposed below the pilot electromagnetic valve, a valve body 6 fixedly disposed below the cover plate 2, and two sets of push rod assemblies mounted inside the valve body 6, referring to fig. 2, an exhaust port 3 for exhausting nitrogen gas and an air inlet 4 for inputting air are disposed on a front surface of the valve body 6, an a port 5 and a B port 7 connected to a molecular sieve cylinder are further disposed on the front surface of the valve body 6, the a port 5 includes a first air passage 51 and a second air passage 52, the first air passage 51 is communicated with the second air passage 52, and a diameter of the first air passage 51 is greater than a diameter of the second air passage 52; the B port 7 comprises a third air passage 71 and a fourth air passage 72, the third air passage 71 is communicated with the fourth air passage 72, and the diameter of the third air passage 71 is larger than that of the fourth air passage 72. The first air passage 51 and the third air passage 71 with larger diameters form relatively larger cavities in the port A5 and the port B7 respectively, so that the effect of impedance noise reduction can be achieved, and the air switching and exhaust noise of the pneumatic combination valve can be effectively reduced.
In order to reduce the air passage resistance and make the air flow smoother, in one embodiment, the first air passage 51, the second air passage 52, the third air passage 71 and the fourth air passage 72 are all cylindrical air passages.
In one embodiment, the first air passage 51 and the second air passage 52 are integrally formed, the third air passage 71 and the fourth air passage 72 are integrally formed, and the port a 5 and the port B7 formed by the integrally formed structures have more excellent air passage tightness without additional sealing measures. However, the above structure has certain difficulties in the process level.
Optionally, in order to reduce the difficulty in processing the a port 5 and the B port 7, in one embodiment, the valve body 6 further includes a front cover plate 8, the front cover plate 8 is disposed on the side where the a port 5 is located, the front cover plate 8 is provided with a second air passage 52 communicated with the first air passage 51, a fourth air passage 72 communicated with the third air passage 71, an air inlet 4 and an air outlet 3, the air inlet 4 and the air outlet 3 are located in a middle area of the front cover plate 8 along the vertical direction, and the second air passage 52 and the fourth air passage 72 are located in two side areas of the front cover plate 8 along the transverse direction.
Preferably, referring to fig. 2, the exhaust port 3 and the intake port 4 are arranged in parallel in a transverse direction, and the exhaust port 3 is located above the intake port 4; the port A5 is located on the left side of the exhaust port 3, the port B7 is located on the right side of the exhaust port 3, and the port A5 and the port B7 are located on the same horizontal line.
In one embodiment, a push rod cavity (not shown) for accommodating a push rod assembly is formed inside the valve body 6, the push rod assembly includes an upper sealing assembly, a push rod, a lower sealing assembly and a fixing device 11, the upper sealing assembly is clamped at the upper end of the push rod, the lower sealing assembly is clamped at the lower end of the push rod, and the fixing device 11 is arranged below the lower sealing assembly.
In one embodiment, the upper sealing assembly comprises an upper sealing cover and an upper membrane, wherein the sealing cover is arranged at the upper end of the cavity of the push rod, and the upper membrane is clamped with the push rod; the lower sealing assembly comprises a lower sealing cover 21 and a lower membrane 22, wherein the sealing cover is arranged at the lower end of the push rod cavity; the fixing device 11 is a clamp spring.
In one embodiment, a central region of the upper sealing cover is provided with a first vent hole, and a sealing ring (not shown in the figure) is arranged on the periphery of the first vent hole.
The working principle of the pneumatic combination valve for the oxygen generator provided by the embodiment is as follows:
compressed air enters the valve body 6 from the air inlet 4, and enters the cover plate 2 and the pilot electromagnetic valve 1 through a gas channel (not shown in the figure) in the valve body 6: if the pilot electromagnetic valve 1 is electrified at the left position, compressed air enters a gas channel in the cover plate 2 through the left position of the pilot electromagnetic valve 1, then acts on the left upper diaphragm 921 through a left first vent hole 931 of a left upper sealing cover 911, pushes the left push rod 101 to move downwards, at the moment, a port B7 is opened, the compressed air enters a left molecular sieve cylinder (not shown in the figure) through the port B7, meanwhile, compressed nitrogen in the right molecular sieve cylinder (not shown in the figure) enters the valve body 6 from a port A5, and the compressed nitrogen is discharged from the exhaust port 3 through a gas channel in the valve body 6; if 1 right position of guide's solenoid valve is electrified, compressed air gets into the gas passage in the apron 2 through 1 right position of guide's solenoid valve, then acts on diaphragm 922 on the right side through the right side second vent 932 of sealed lid 912 on the right side, promotes right side push rod 102 downstream, and mouth A5 is opened this moment, and compressed air gets into a right side molecular sieve section of thick bamboo through mouth A5, and the compressed nitrogen gas in the left side molecular sieve section of thick bamboo gets into valve body 6 from mouth B7 simultaneously, gets into gas vent 3 through the pneumatic channel in the valve body 6 and discharges nitrogen gas.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The pneumatic combination valve for the oxygen generator is characterized by comprising a pilot electromagnetic valve for controlling a gas circuit switch, a cover plate fixedly arranged below the pilot electromagnetic valve, a valve body fixedly arranged below the cover plate and a push rod assembly arranged in the valve body, wherein the side surface of the valve body is provided with a gas inlet for inputting air, a gas outlet for discharging nitrogen, an A port communicated with a molecular sieve cylinder and a B port communicated with the molecular sieve cylinder, the gas inlet, the gas outlet, the A port and the B port are positioned on the same side surface of the valve body, the A port comprises a first gas passage and a second gas passage, the first gas passage is communicated with the second gas passage, and the diameter of the first gas passage is larger than that of the second gas passage; the port B comprises a third air passage and a fourth air passage, the third air passage is communicated with the fourth air passage, and the diameter of the third air passage is larger than that of the fourth air passage.
2. The pneumatic combination valve for an oxygen generator as set forth in claim 1, wherein the first, second, third and fourth gas passages are all cylindrical gas passages.
3. The pneumatic combination valve for an oxygen generator as set forth in claim 2, wherein the first and second gas passages are of one-piece construction, and the third and fourth gas passages are of one-piece construction.
4. The pneumatic combination valve for the oxygen generator as recited in claim 2, further comprising a front cover plate, wherein the front cover plate covers the side surface where the opening a of the valve body is located, the front cover plate is provided with a second air passage communicated with the first air passage, a fourth air passage communicated with the third air passage, an air inlet and an air outlet, the air inlet and the air outlet are located in a middle area of the front cover plate along the vertical direction, and the second air passage and the fourth air passage are located in two side areas of the front cover plate along the transverse direction.
5. The valve of claim 4, wherein the exhaust port and the inlet port are arranged in parallel in a transverse direction, the exhaust port being located above the inlet port; the port A is positioned on one side of the exhaust port, the port B is positioned on the other side of the exhaust port, and the port A and the port B are positioned on the same horizontal line.
6. The pneumatic combination valve for the oxygen generator as recited in claim 1, wherein a push rod cavity for accommodating the push rod assembly is formed inside the valve body, the push rod assembly comprises an upper sealing assembly, a push rod, a lower sealing assembly and a fixing device, the upper sealing assembly is clamped at an upper end of the push rod, the lower sealing assembly is clamped at a lower end of the push rod, and the fixing device is arranged below the lower sealing assembly.
7. The pneumatic combination valve for the oxygen generator as recited in claim 6, wherein the upper sealing assembly comprises an upper sealing cover arranged at the upper end of the push rod cavity and an upper membrane clamped with the push rod; the lower sealing assembly comprises a lower sealing cover and a lower membrane, wherein the sealing cover is arranged at the lower end of the push rod cavity; the fixing device is a clamp spring.
8. The pneumatic combination valve for an oxygen generator as recited in claim 7, wherein a first vent hole is formed in a central region of the upper sealing cover, and a first sealing ring is disposed on an outer periphery of the first vent hole.
9. The pneumatic combination valve for an oxygenerator of claim 6, wherein the number of pushrod cavities is 2 and the number of pushrod assemblies is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159189.4A CN111271489A (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159189.4A CN111271489A (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271489A true CN111271489A (en) | 2020-06-12 |
Family
ID=70997710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159189.4A Pending CN111271489A (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN111271489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877711A (en) * | 2023-09-08 | 2023-10-13 | 宁波索诺工业自控设备有限公司 | Pilot-operated electromagnetic diaphragm valve |
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| WO2011091629A1 (en) * | 2010-01-26 | 2011-08-04 | 中山荣杰医疗器材工业有限公司 | Oxygen generator |
| CN202972028U (en) * | 2012-12-14 | 2013-06-05 | 佛山市美客医疗科技有限公司 | Combined control valve of oxygenerator |
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| CN207921397U (en) * | 2018-03-15 | 2018-09-28 | 台州欧思托气动机械科技有限公司 | Oxygenerating valve |
| CN110274072A (en) * | 2019-06-10 | 2019-09-24 | 广东美的制冷设备有限公司 | Valve component and air conditioner for air conditioner |
| CN211975978U (en) * | 2020-03-09 | 2020-11-20 | 柯尔(苏州)医疗科技有限公司 | Pneumatic combination valve for oxygenerator |
-
2020
- 2020-03-09 CN CN202010159189.4A patent/CN111271489A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091629A1 (en) * | 2010-01-26 | 2011-08-04 | 中山荣杰医疗器材工业有限公司 | Oxygen generator |
| CN202972028U (en) * | 2012-12-14 | 2013-06-05 | 佛山市美客医疗科技有限公司 | Combined control valve of oxygenerator |
| CN203286048U (en) * | 2013-05-02 | 2013-11-13 | 宁波佳尔灵气动机械有限公司 | Rotary valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877711A (en) * | 2023-09-08 | 2023-10-13 | 宁波索诺工业自控设备有限公司 | Pilot-operated electromagnetic diaphragm valve |
| CN116877711B (en) * | 2023-09-08 | 2023-12-15 | 宁波索诺工业自控设备有限公司 | Pilot-operated electromagnetic diaphragm valve |
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