CN211975978U - Pneumatic combination valve for oxygenerator - Google Patents
Pneumatic combination valve for oxygenerator Download PDFInfo
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- CN211975978U CN211975978U CN202020280841.3U CN202020280841U CN211975978U CN 211975978 U CN211975978 U CN 211975978U CN 202020280841 U CN202020280841 U CN 202020280841U CN 211975978 U CN211975978 U CN 211975978U
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Abstract
The utility model discloses a pneumatic combination valve for oxygenerator, including the guide's solenoid valve that is used for controlling the gas circuit switch, fixed set up in apron, the fixed setting in guide's solenoid valve below the valve body of apron below with install in the inside push rod subassembly of valve body, the side of valve body is offered and is used for the air inlet of input air, is used for the gas outlet of discharge nitrogen gas, with the A mouth of a molecular sieve section of thick bamboo intercommunication and with the B mouth of a molecular sieve section of thick bamboo intercommunication, air inlet, gas vent, A mouth and B mouth are located same side of valve body. The utility model provides a technical scheme carries out special design through the air flue with A mouth and B mouth to at a mouth and the intraoral cavity that forms of B, play impedance noise cancelling action, effectively reduced the gas switching and the exhaust noise of pneumatic combination valve, and then reduced the noise at work of molecular sieve oxygen generation system complete machine.
Description
Technical Field
The utility model relates to a pneumatic valve technical field, in particular to pneumatic combination valve for 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 molecular sieve Pressure Swing Adsorption (PSA) oxygen production system, uses molecular sieve as adsorbent, uses environment air as raw material by Pressure Swing Adsorption (PSA), under the condition of normal temperature and low pressure, uses the characteristic that the adsorption capacity of molecular sieve for nitrogen (adsorbate) in air is increased when pressurizing and the adsorption capacity for nitrogen in air is decreased when depressurizing to form a rapid cycle process of pressure adsorption and pressure reduction desorption, so that oxygen and nitrogen in air are separated, carbon dioxide, gaseous acid and other gaseous oxides in air all belong to substances with strong molecular polarity, and the oxygen produced by the air has purity of 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.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pneumatic combination valve for oxygenerator has effectively reduced the noise of the gaseous switching of pneumatic combination valve and exhaust process, has promoted the use experience of molecular sieve system oxygen system.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a pneumatic combination valve for oxygenerator, including the guide's solenoid valve that is used for controlling the gas circuit switch, the apron of fixed setting below the guide's solenoid valve, the push rod subassembly of fixed setting in the valve body inside, the side of valve body is seted up the air inlet that is used for the input air, is used for discharging the gas outlet of nitrogen gas, the A mouth that communicates with a molecular sieve section of thick bamboo and the B mouth that communicates with a molecular sieve section of thick bamboo, air inlet, gas vent, A mouth and B mouth are located the same side of valve body, the A mouth includes first air flue and second air flue, first air flue with the second air flue communicates, the diameter of first air flue is greater than the diameter of second air flue; 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 utility model have following advantage and beneficial effect: the utility model provides a pneumatic combination valve for oxygenerator, including the guide's solenoid valve that is used for controlling the gas circuit switch, the apron of fixed setting below the guide's solenoid valve, the push rod subassembly of fixed setting in the valve body inside, the side of valve body is seted up the air inlet that is used for the input air, is used for discharging the gas outlet of nitrogen gas, the A mouth that communicates with a molecular sieve section of thick bamboo and the B mouth that communicates with a molecular sieve section of thick bamboo, air inlet, gas vent, A mouth and B mouth are located the same side of valve body, the A mouth includes first air flue and second air flue, first air flue with the second air flue communicates, the diameter of first air flue is greater than the diameter of second air flue; 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. The utility model provides a technical scheme carries out special design through the air flue with A mouth and B mouth to at a mouth and the intraoral cavity that forms of B, play impedance noise cancelling action, effectively reduced the gas switching and the exhaust noise of pneumatic combination valve, and then reduced the noise at work of molecular sieve oxygen generation system complete machine.
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 described 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 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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, product, 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, product, or apparatus.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein 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, detailed descriptions of well-known functions and components may be 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 a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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 |
|---|---|---|---|
| CN202020280841.3U CN211975978U (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020280841.3U CN211975978U (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
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| CN211975978U true CN211975978U (en) | 2020-11-20 |
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| CN202020280841.3U Active CN211975978U (en) | 2020-03-09 | 2020-03-09 | Pneumatic combination valve for oxygenerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271489A (en) * | 2020-03-09 | 2020-06-12 | 柯尔(苏州)医疗科技有限公司 | Pneumatic combination valve for oxygenerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271489A (en) * | 2020-03-09 | 2020-06-12 | 柯尔(苏州)医疗科技有限公司 | Pneumatic combination valve for oxygenerator |
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Denomination of utility model: A pneumatic combined valve for oxygen generator Effective date of registration: 20220530 Granted publication date: 20201120 Pledgee: Bank of Jiangsu Co.,Ltd. Suzhou Xiangcheng sub branch Pledgor: CARER MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2022320010169 |