CN119802279B - Valve seat structure for portable oxygenerator - Google Patents
Valve seat structure for portable oxygeneratorInfo
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- CN119802279B CN119802279B CN202510203715.5A CN202510203715A CN119802279B CN 119802279 B CN119802279 B CN 119802279B CN 202510203715 A CN202510203715 A CN 202510203715A CN 119802279 B CN119802279 B CN 119802279B
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Abstract
The invention discloses a valve seat structure for a portable oxygenerator, which comprises a valve seat, a first two-position three-way valve and a second two-position three-way valve, wherein an air inlet pipe, a first air outlet pipe, a second air outlet pipe and a nitrogen discharge pipe are arranged on the valve seat, a first port of the first two-position three-way valve is communicated with the air inlet pipe, a second port of the first two-position three-way valve is communicated with the first air outlet pipe, a third port of the first two-position three-way valve is communicated with the nitrogen discharge pipe, a first port of the second two-position three-way valve is communicated with the air inlet pipe, a second port of the second two-position three-way valve is communicated with the second air outlet pipe, and a third port of the second two-position three-way valve is communicated with the nitrogen discharge pipe. According to the valve seat structure, the functions of the two-position five-way valve are realized through the valve seat structure and the two-position three-way valves, the pipeline connection between the compressor and the separation tower can be reduced, the noise of the whole machine is reduced, the occupied space in the portable oxygenerator can be effectively reduced, and the possibility is provided for further miniaturization of the portable oxygenerator.
Description
Technical Field
The invention relates to the field of oxygenerators, in particular to a valve seat structure for a portable oxygenerator.
Background
The portable oxygenerator is small equipment designed for users needing oxygen therapy, provides great convenience for the users due to portability, usability and stability, is particularly suitable for users needing long-term oxygen therapy or outdoor activities, and can remarkably improve life quality.
The portable oxygenerator in the existing market has the following defects that a connecting pipeline between a compressor and a separation tower is provided with:
1) The number of connected pipelines is large, so that the potential hazards are increased, and the material cost, the processing cost and the assembly labor cost are also increased;
2) The pipeline is poor in neatness and attractive;
3) Most of pipeline materials are silica gel, and the silencing effect is poor;
4) The more pipelines occupy the larger space inside the portable oxygenerator, and the obstruction is increased for the further miniaturization of the portable oxygenerator.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a valve seat structure for a portable oxygen generator.
According to one aspect of the present invention, there is provided a valve seat structure for a portable oxygenerator, comprising:
The valve seat is provided with an air inlet pipe, a first air outlet pipe, a second air outlet pipe and a nitrogen discharge pipe;
a first two-position three-way valve, a first port of the first two-position three-way valve is communicated with the air inlet pipe, a second port of the first two-position three-way valve is communicated with the first air outlet pipe, a third port of the first two-position three-way valve is communicated with the nitrogen discharge pipe, and
The first port of the second two-position three-way valve is communicated with the air inlet pipe, the second port of the second two-position three-way valve is communicated with the second air outlet pipe, and the third port of the second two-position three-way valve is communicated with the nitrogen discharge pipe.
According to the valve seat structure for the portable oxygenerator, the air inlet pipe is connected with the compressed air outlet of the compressor in the oxygenerator, the first air outlet pipe is connected with the air inlet of the separation tower A in the oxygenerator, the second air outlet pipe is connected with the air inlet of the separation tower B in the oxygenerator, and the nitrogen discharge pipe is connected with the nitrogen discharge port of the oxygenerator; when the nitrogen adsorbed by the molecular sieve in the separation tower A reaches saturation, the control setting of the oxygen generator to the first two-position three-way valve is adopted, the second port on the first two-position three-way valve is communicated with the third port through the control setting of the oxygen generator to the second two-position three-way valve, the nitrogen in the separation tower A is communicated with the third port through the control setting of the oxygen generator, the nitrogen in the separation tower B is discharged into the atmosphere through the second air outlet pipe, the second port on the second two-position three-way valve, the third port and the nitrogen discharge pipe, so as to reduce the pressure of the molecular sieve in the separation tower B, when the nitrogen adsorbed by the molecular sieve in the separation tower A reaches saturation, the second port on the first two-position three-way valve is communicated with the third port through the oxygen generator, the nitrogen in the separation tower A is simultaneously discharged into the atmosphere through the second air outlet pipe, the second port on the second two-position three-way valve, the second port on the second three-way valve is communicated with the second air outlet pipe, the pressure of the nitrogen discharge pipe is simultaneously reduced through the second three-way valve, and the pressure of the nitrogen in the separation tower A is simultaneously discharged into the two-position three-way valve, and the pressure of the nitrogen in the separation tower A is simultaneously reduced through the second three-way valve and the pressure valve, the valve seat structure of the invention realizes the functions of the two-position five-way valve through the valve seat structure and the two-position three-way valves, reduces the pipeline connection between the compressor and the separation tower, reduces the material cost, reduces the assembly, simplifies the assembly, reduces the defective products caused by the defects of the pipeline, the joint and the component, improves the yield, reduces the noise of the whole machine while reducing the material, and simultaneously effectively reduces the occupied space inside the portable oxygen generator and provides possibility for further miniaturization of the portable oxygen generator.
Further, a first cavity, a second cavity, a third cavity and a fourth cavity are arranged on the valve seat,
The air inlet pipe is communicated with the first cavity, the first air outlet pipe is communicated with the second cavity, the second air outlet pipe is communicated with the third cavity, the nitrogen discharging pipe is communicated with the fourth cavity,
A first port of the first two-position three-way valve is communicated with the first cavity, a second port of the first two-position three-way valve is communicated with the second cavity, a third port of the first two-position three-way valve is communicated with the fourth cavity,
The first port of the second two-position three-way valve is communicated with the first cavity, the second port of the second two-position three-way valve is communicated with the third cavity, and the third port of the second two-position three-way valve is communicated with the fourth cavity.
Therefore, when the oxygenerator works, the control setting of the oxygenerator to the first two-position three-way valve is adopted, the first port on the first two-position three-way valve is communicated with the second port, compressed gas generated by the compressor in the oxygenerator enters the first cavity through the air inlet pipe, the compressed gas in the first cavity enters the second cavity through the first port and the second port on the first two-position three-way valve, the compressed gas in the second cavity enters the separation tower A through the first air outlet pipe to separate oxygen and nitrogen, meanwhile, the control setting of the oxygenerator to the second two-position three-way valve is adopted, the second port on the second two-position three-way valve is communicated with the third port, nitrogen in the separation tower B enters the third cavity through the second air outlet pipe, the nitrogen in the third cavity enters the fourth cavity through the second port on the second two-position three-way valve, the nitrogen in the fourth cavity is released into the atmosphere through the nitrogen exhaust pipe so as to reduce the pressure of molecular sieves in the separation tower B, when the compressed gas in the second cavity enters the separation tower A through the first air outlet pipe to separate oxygen and the separation tower A, the second port on the second three-way valve is simultaneously, the nitrogen in the second three-way valve enters the third cavity through the second port on the second three-way valve, and the second three-way valve is simultaneously, the nitrogen in the second cavity in the third cavity is released into the fourth cavity through the second port on the second three-position three-way valve, and the second port on the second three-way valve is simultaneously, the second port enters the third cavity, compressed gas in the third cavity enters the separation tower B through the second air outlet pipe to separate oxygen and nitrogen, the control setting of the first two-position three-way valve and the second two-position three-way valve is carried out through the oxygenerator, the oxygen and nitrogen separation in the separation tower A and the nitrogen removal in the separation tower B can be orderly realized, the oxygen and nitrogen separation in the separation tower B and the nitrogen removal in the separation tower A are simultaneously carried out, the alternating work is carried out, and the function of the two-position five-way valve is realized through the structure of the valve seat and the two-position three-way valves.
Further, the first two-position three-way valve and the second two-position three-way valve are two-position three-way electromagnetic valves with the model number of MAC-BV 310A.
Therefore, the structure of the MAC-BV310A electromagnetic valve is simple, the response is quick, the low power consumption is low, the volume is small, the structure is simple, the installation and the maintenance are easy, the function of the two-position five-way valve can be realized by the structure of the two MAC-BV310A electromagnetic valves and the valve seat, the connection between the compressor and the separation tower is realized, the formed valve seat structure is small in volume and simple in structure, and the possibility is provided for further miniaturization of the portable oxygenerator.
Further, a first mounting hole and a second mounting hole are arranged on the valve seat, the first two-position three-way valve is inserted and fixed in the first mounting hole, the second two-position three-way valve is inserted and fixed in the second mounting hole,
A first communication hole, a second communication hole and a third communication hole are arranged on the inner wall of the first mounting hole, a first port of the first two-position three-way valve is communicated with the first cavity through the first communication hole, a second port of the first two-position three-way valve is communicated with the second cavity through the second communication hole, a third port of the first two-position three-way valve is communicated with the fourth cavity through the third communication hole,
The inner wall of the second mounting hole is provided with a fourth communication hole, a fifth communication hole and a sixth communication hole, a first port of the second two-position three-way valve is communicated with the first cavity through the fourth communication hole, a second port of the second two-position three-way valve is communicated with the third cavity through the fifth communication hole, and a third port of the second two-position three-way valve is communicated with the fourth cavity through the sixth communication hole.
Therefore, the first two-position three-way valve and the second two-position three-way valve are very simple to assemble and disassemble, and the function of the two-position five-way valve can be realized by only plugging and fixing the first two-position three-way valve in the first mounting hole and plugging and fixing the second two-position three-way valve in the second mounting hole.
Further, the second cavity and the third cavity are respectively located at two sides of the first cavity, and the second cavity and the third cavity are respectively located at two sides of the fourth cavity.
Therefore, the second cavity and the third cavity are symmetrically distributed about the first cavity and the fourth cavity, so that the path of compressed gas in the air inlet pipe entering the separation tower A and the path of compressed gas in the separation tower B are kept consistent, the nitrogen discharge path of nitrogen in the separation tower A and the nitrogen discharge path of nitrogen in the separation tower B are also kept consistent, and the working stability of the oxygenerator is ensured.
Further, the valve seat comprises a base and a cover body,
The first cavity, the second cavity, the third cavity and the fourth cavity are all arranged on the base, the cover body covers the base to cover the first cavity, the second cavity, the third cavity and the fourth cavity, the first mounting hole, the second mounting hole, the air inlet pipe and the nitrogen discharge pipe are all arranged on the base,
The first air outlet pipe and the second air outlet pipe are both arranged on the cover body.
Therefore, the valve seat is formed by assembling the base and the cover body, so that the processing and the forming are convenient, and the cover body can be detached from the base to clean and maintain the first cavity, the second cavity, the third cavity, the fourth cavity, the air inlet pipe and the nitrogen exhaust pipe on the base.
Further, the sealing gasket is also included, a first sealing groove is arranged on the end face of the base facing the cover body, the first sealing groove is annularly arranged at the periphery of the ports of the first cavity, the second cavity, the third cavity and the fourth cavity, a second sealing groove matched with the first sealing groove is arranged on the end face of the cover body facing the base, the shape of the sealing gasket is matched with the shape of the first sealing groove,
When the cover body is covered on the base, one half of the sealing gasket in the thickness direction is accommodated in the first sealing groove, and the other half of the sealing gasket in the thickness direction is accommodated in the second sealing groove.
Therefore, the sealing gasket can respectively improve the tightness among the first cavity, the second cavity, the third cavity, the fourth cavity and the cover body and prevent gas leakage.
Further, two concave parts are arranged on the end face of the base, facing the cover body, of the base, two convex columns respectively matched with the two concave parts are arranged on the end face of the cover body, facing the base, and the two convex columns are respectively inserted into the two concave parts.
Therefore, when the base and the cover body are assembled, the sealing gasket is firstly accommodated in the first sealing groove, then the two convex columns on the cover body are correspondingly inserted into the two concave parts on the base respectively, so that the sealing gasket can be ensured to be accommodated in the first sealing groove and the second sealing groove at the same time, and the base, the sealing gasket and the cover body can be assembled together rapidly.
Further, the cover body is connected with the base through screws.
Therefore, the cover body and the base can be firmly assembled together through the screws, and the tightness among the first cavity, the second cavity, the third cavity, the fourth cavity and the cover body is ensured.
Further, be equipped with first through-hole and second through-hole on the lid, the one end and the first outlet duct intercommunication of first through-hole, the other end and the second cavity intercommunication of first through-hole, the one end and the second outlet duct intercommunication of second through-hole, the other end and the third cavity intercommunication of second through-hole.
Therefore, the cover body can be detached from the base to clean and maintain the first air outlet pipe and the second air outlet pipe on the cover body, and the cover body is very convenient, and the design can enable the first air outlet pipe and the second air outlet pipe to be staggered with the nitrogen discharge pipe in space, so that the valve seat structure is convenient to be connected with the separation tower and the nitrogen discharge port on the oxygen generator.
Drawings
FIG. 1 is a schematic view of a valve seat structure for a portable oxygenerator according to the present invention;
FIG. 2 is a schematic illustration of a disassembled structure of the valve seat structure shown in FIG. 1;
FIG. 3 is a schematic diagram of a disassembled structure from another perspective of the valve seat structure shown in FIG. 1;
FIG. 4 is a schematic view of the valve seat structure of FIG. 2 after the valve seat has been shown with hidden lines;
fig. 5 is a schematic diagram of another view of the valve seat in the valve seat structure shown in fig. 2.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, unless otherwise indicated, the terms "plurality of" means two or more, "and" mounted, "connected," "coupled," and "disposed" are to be construed broadly as referring to, for example, being fixedly connected, removably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediary, or communicating between two elements, unless otherwise specifically indicated and defined.
Referring to fig. 1 to 5, a valve seat structure for a portable oxygenerator includes a valve seat 1, a first two-position three-way valve 2, a second two-position three-way valve 3, and a packing 4.
Referring to fig. 1, an air inlet pipe 11, a first air outlet pipe 12, a second air outlet pipe 13 and a nitrogen exhaust pipe 14 are arranged on a valve seat 1, a first two-position three-way valve 2 and a second two-position three-way valve 3 are both arranged on the valve seat 1, specifically referring to fig. 2 to 5, the valve seat 1 comprises a base 101 and a cover body 102, the cover body 102 covers the base 101, the base 101 is provided with the air inlet pipe 11 and the nitrogen exhaust pipe 14, the air inlet pipe 11 and the nitrogen exhaust pipe 14 are respectively arranged at two ends of the base 101, the first two-position three-way valve 2 and the second two-position three-way valve 3 are both arranged on the base 101, the cover body 102 is provided with the first air outlet pipe 12 and the second air outlet pipe 13, and the first air outlet pipe 12 and the second air outlet pipe 13 are both arranged on the same side of the cover body 102 in parallel.
Referring to fig. 2 to 5, a first cavity 15, a second cavity 16, a third cavity 17 and a fourth cavity 18 are formed on a base 101, the first cavity 15, the second cavity 16, the third cavity 17 and the fourth cavity 18 are all in an opening shape, the second cavity 16 and the third cavity 17 are respectively located at two sides of the first cavity 15, the second cavity 16 and the third cavity 17 are respectively located at two sides of the fourth cavity 18, the second cavity 16 and the third cavity 17 are symmetrically distributed with respect to the first cavity 15, the second cavity 16 and the third cavity 17 are symmetrically distributed with respect to the fourth cavity 18, an air inlet pipe 11 is communicated with the first cavity 15, a nitrogen discharge pipe 14 is communicated with the fourth cavity 18, a cover 102 is covered on the base 101 to cover the first cavity 15, the second cavity 16, the third cavity 17 and the fourth cavity 18, a first through hole 1023 and a second through hole 1024 are formed on the cover 102, one end of the first through hole 1023 is communicated with the second through hole 1024, one end of the second through hole 1023 is communicated with the second through hole 1024, the other end of the second through hole 1024 is communicated with the second through hole 1024, the other end of the second through hole 1023 is communicated with the second through hole 1024 is communicated with the second through hole 3, and the other end of the third through hole is communicated with the third through hole 1024 is communicated with the through hole is 3.
Referring to fig. 2 to 5, a first mounting hole 19 and a second mounting hole 110 are formed in the base 101, the first two-position three-way valve 2 is inserted and fixed in the first mounting hole 19, the second two-position three-way valve 3 is inserted and fixed in the second mounting hole 110, the first mounting hole 19 and the second mounting hole 110 are respectively located at two sides of the air inlet pipe 11, a first communication hole 191, a second communication hole 192 and a third communication hole 193 are formed on the inner wall of the first mounting hole 19, a first port of the first two-position three-way valve 2 is communicated with the first cavity 15 through the first communication hole 191, a second port of the first two-position three-way valve 2 is communicated with the second cavity 16 through the second communication hole 192, and a third port of the first two-position three-way valve 2 is communicated with the fourth cavity 18 through the third communication hole 193, namely: the first port of the first two-position three-way valve 2 is communicated with the air inlet pipe 11 through a first communication hole 191 and a first cavity 15, the second port of the first two-position three-way valve 2 is communicated with the first air outlet pipe 12 on the cover body 102 through a second communication hole 192, a second cavity 16 and a first through hole 1023 on the cover body 102, the third port of the first two-position three-way valve 2 is communicated with the nitrogen discharge pipe 14 through a third communication hole 193 and a fourth cavity 18, a fourth communication hole 111, a fifth communication hole 112 and a sixth communication hole 113 are formed on the inner wall of the second mounting hole 110, the first port of the second two-position three-way valve 3 is communicated with the first cavity 15 through the fourth communication hole 111, the second port of the second two-position three-way valve 3 is communicated with the third cavity 17 through the fifth communication hole 112, the third port of the second two-position three-way valve 3 is communicated with the fourth cavity 18 through the sixth communication hole 113, namely, the first port of the second two-position three-way valve 3 is communicated with the air inlet pipe 11 through the fourth communication hole 111 and the first cavity 15, the second port of the second two-position three-way valve 3 is communicated with the second air outlet pipe 13 on the cover body 102 through the fifth communication hole 112, the third cavity 17 and the second communication hole 1024 on the cover body 102, and the third port of the second two-position three-way valve 3 is communicated with the nitrogen discharge pipe 14 through the sixth communication hole 113 and the fourth cavity 18.
Referring to fig. 2 and 3, in this embodiment, the first two-position three-way valve 2 and the second two-position three-way valve 3 are two-position three-way solenoid valves with the model of MAC-BV310A, and the MAC-BV310A solenoid valve has the advantages of simple structure, quick response, low power consumption, small volume, simple structure, and easy installation and maintenance, and the two MAC-BV310A solenoid valves and the valve seat 1 can realize the function of two-position five-way valve, so as to realize the connection between the compressor and the separation tower on the oxygenerator, and the formed valve seat structure has the advantages of small volume and simple structure, and provides possibility for further miniaturization of the portable oxygenerator. Through the control setting of the oxygenerator on the first two-position three-way valve 2, the first port on the first two-position three-way valve 2 is communicated with the second port, compressed gas generated by the compressor in the oxygenerator enters the first cavity 15 through the air inlet pipe 11, compressed gas in the first cavity 15 enters the second cavity 16 through the first port and the second port on the first two-position three-way valve 2, compressed gas in the second cavity 16 enters the separation tower A of the oxygenerator through the first through hole 1023 on the cover body 102 and the first air outlet pipe 12 to separate oxygen from nitrogen, meanwhile, through the control setting of the oxygenerator on the second two-position three-way valve 3, the second port on the second two-position three-way valve 3 is communicated with the third port, nitrogen in the separation tower B of the oxygenerator (at the moment, nitrogen adsorbed by a molecular sieve in the separation tower B of the oxygenerator reaches saturation, nitrogen discharge is required, and the nitrogen discharge time point can be set by setting the time of powering on and powering off the second two-position three-way valve 3) passes through the second air outlet pipe 13 on the cover body 102, The second through hole 1024 enters the third cavity 17, the nitrogen in the third cavity 17 enters the fourth cavity 18 through the second port and the third port on the second two-position three-way valve 3, the nitrogen in the fourth cavity 18 is released into the atmosphere through the nitrogen discharge pipe 14 and the nitrogen discharge port on the oxygen generator to reduce the pressure of the molecular sieve in the separating tower B, when the nitrogen adsorbed by the molecular sieve in the separating tower A of the oxygen generator reaches saturation (can be set by setting the time of powering on and off the first two-position three-way valve 2), the second port on the first two-position three-way valve 2 is communicated with the third port through the control setting of the oxygen generator on the first two-position three-way valve 2, the nitrogen in the separating tower A of the oxygen generator passes through the first air outlet pipe 12 on the cover body 102, The first through hole 1023 enters the second cavity 16, nitrogen in the second cavity 16 enters the fourth cavity 18 through the second port and the third port on the first two-position three-way valve 2, the nitrogen in the fourth cavity 18 is released into the atmosphere through the nitrogen discharge pipe 14 and the nitrogen discharge port on the oxygen generator to reduce the pressure of the molecular sieve in the separation tower A, meanwhile, the control of the oxygen generator to the second two-position three-way valve 3 is set, the first port on the second two-position three-way valve 3 is communicated with the second port, compressed gas in the first cavity 15 enters the third cavity 17 through the first port and the second port on the second two-position three-way valve 3, and compressed gas in the third cavity 17 is discharged through the second through hole 1024 on the cover body 102, The control setting (the time of power on and power off) of the first two-position three-way valve 2 and the second two-position three-way valve 3 by the oxygenerator can orderly realize the separation of oxygen and nitrogen in the separation tower A of the oxygenerator, the separation of oxygen and nitrogen in the separation tower B, the separation of oxygen and nitrogen in the separation tower A and the alternate work of the separation tower A, the functions of the two-position five-way valve are realized by the structure of the valve seat 1 and the two-position three-way valves, the working modes of the first two-position three-way valve 2 and the second two-position three-way valve 3 can be preset by the oxygenerator, and in addition, because the second cavity 16 and the third cavity 17 are related to the first cavity 15, The fourth cavity 18 is symmetrically arranged, so that the path of compressed gas in the air inlet pipe 11 entering the separation tower A of the oxygenerator is consistent with the path of compressed gas entering the separation tower B, and the nitrogen discharging path of nitrogen in the separation tower A of the oxygenerator is consistent with the nitrogen discharging path of nitrogen in the separation tower B, thereby ensuring the working stability of the oxygenerator, and the first two-position three-way valve 2 and the second two-position three-way valve 3 are very simple to assemble and disassemble, and the function of the two-position five-way valve can be realized by only fixing the first two-position three-way valve 2 in the first mounting hole 19 in a plugging manner and fixing the second two-position three-way valve 3 in the second mounting hole 110 in a plugging manner.
Referring to fig. 2 and 3, a first seal groove 1011 is formed on an end surface of the base 101 facing the cover 102, the first seal groove 1011 is annularly disposed at the periphery of the ports of the first, second, third and fourth cavities 15, 16, 17, 18, the first seal groove 1011 is shaped in a closed state, a second seal groove 1021 adapted to the first seal groove 1011 is formed on the end surface of the cover 102 facing the base 101, the second seal groove 1021 is shaped in a closed state, the shape of the gasket 4 is adapted to the shapes of the first and second seal grooves 1011, when the cover 102 is covered on the base 101, one half of the gasket 4 in the thickness direction is accommodated in the first seal groove 1011, the other half of the gasket 4 in the thickness direction is accommodated in the second seal groove 1021, and the gasket 4 can improve the sealing properties between the first, second, third and fourth cavities 15, 17, 18 and the cover 102, respectively, so that leakage of air is prevented.
Referring to fig. 2 and 3, two concave portions 1012 are formed on an end face of the base 101 facing the cover 102, two convex columns 1022 respectively adapted to the two concave portions 1012 are formed on an end face of the cover 102 facing the base 101, the two convex columns 1022 are respectively inserted into the two concave portions 1012, when the base 101 and the cover 102 are assembled, the sealing gasket 4 is firstly accommodated in the first sealing groove 1011, and then the two convex columns 1022 on the cover 102 are correspondingly inserted into the two concave portions 1012 on the base 101, so that the sealing gasket 4 can be ensured to be accommodated in the first sealing groove 1011 and the second sealing groove 1021 at the same time, and the base 101, the sealing gasket 4 and the cover 102 can be assembled together rapidly.
The cover body 102 is connected with the base 101 through screws (not shown), the cover body 102 and the base 101 can be firmly assembled together through screws, tightness between the first cavity body 15, the second cavity body 16, the third cavity body 17, the fourth cavity body 18 and the cover body 101 is ensured, the valve seat 1 is formed by assembling the base 101 and the cover body 102, the processing and the forming are convenient, moreover, the first cavity body 15, the second cavity body 16, the third cavity body 17, the fourth cavity body 18, the air inlet pipe 11 and the nitrogen discharge pipe 14 on the base 101 can be cleaned and maintained after the cover body 102 is detached from the base 101, the first air outlet pipe 12 and the second air outlet pipe 13 on the cover body 102 can be cleaned and maintained very conveniently, and due to the design that the first air outlet pipe 12 and the second air outlet pipe 13 on the cover body 102 are communicated with the second cavity body 16 through the first through hole 1023 and the second air outlet pipe 13 are communicated with the third cavity body 17 through the second through holes 1024, the first air outlet pipe 12 and the second air outlet pipe 13 can be cleaned and maintained with the nitrogen discharge pipe 14 on the space, and the nitrogen discharge pipe 14 can be staggered and the tower can be connected with the valve seat structure conveniently.
Referring to fig. 1 to 5, according to the valve seat structure for a portable oxygenerator of the present invention, an air inlet pipe 11 is connected to a compressed gas outlet of a compressor in the oxygenerator, a first air outlet pipe 12 is connected to an air inlet of a separation tower a in the oxygenerator, and a second air outlet pipe 13 is connected to an air inlet of a separation tower B in the oxygenerator; when the oxygenerator works, through the control setting of the oxygenerator on the first two-position three-way valve 2, the first port on the first two-position three-way valve 2 is communicated with the second port, compressed gas generated by a compressor in the oxygenerator is released into the atmosphere through the air inlet pipe 11, the first cavity 15 and the first port, the second port and the second cavity 16 on the first two-position three-way valve 2, the first through hole 1023 and the first air outlet pipe 12 enter the separation tower A to separate oxygen and nitrogen, meanwhile, through the control setting of the oxygenerator on the second two-position three-way valve 3, the second port on the second two-position three-way valve 3 is communicated with the third port, nitrogen in the separation tower B is communicated with the first air outlet pipe 13, the second through hole 1024, the third cavity 17 and the second port on the second two-position three-way valve 3 through the second air outlet pipe 13, the third cavity 18, the nitrogen outlet pipe 14 and the nitrogen outlet on the oxygenerator to reduce the pressure of a molecular sieve in the separation tower B, and when the oxygen absorber in the separation tower A passes through the first three-way valve 2, the second through hole 1024, the second port on the third three-way valve 14 and the first three-way valve 2, the second port on the third three-way valve 14 and the nitrogen outlet on the oxygenerator to reduce the pressure of the molecular sieve in the separation tower B The pressure of molecular sieve in the separating tower A is reduced by releasing the nitrogen discharge port on the oxygenerator into the atmosphere, and simultaneously, the control setting of the oxygenerator to the second two-position three-way valve 3 is carried out, the first port on the second two-position three-way valve 3 is communicated with the second port, compressed gas generated by the compressor in the oxygenerator enters the separating tower B through the air inlet pipe 11, the first cavity 15 and the first port on the second two-position three-way valve 3, the second port, the third cavity 17, the second through hole 1024 and the second air outlet pipe 13 to separate oxygen from nitrogen, and the control setting of the oxygenerator to the first two-position three-way valve 2 and the second two-position three-way valve 3 is carried out (specifically, the time of electrifying and powering off the first two-position three-way valve 2 and the second two-way valve 3 can be set), so that the oxygen and nitrogen in the separating tower A are separated at the same time, and the separating tower A is alternately operated, and the valve seat structure of the oxygenerator is simple, the two-position three-way valve seat structure is adopted, the two-position three-way valve is not provided, the two-way valve is easy to connect, the cost of the oxygenerator can be reduced, the assembly is reduced, the two-position three-way valve is easy, and the material consumption is reduced, and the assembly cost is reduced, and the assembly is easy, and the cost is reduced.
The foregoing description is only of some embodiments of the present invention, and is intended to illustrate the technical means of the present invention, not to limit the technical scope of the present invention. The present invention is obviously modified by those skilled in the art in combination with the prior common general knowledge, and falls within the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510203715.5A CN119802279B (en) | 2025-02-24 | 2025-02-24 | Valve seat structure for portable oxygenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN214261263U (en) * | 2020-11-26 | 2021-09-24 | 江苏鱼跃医疗设备股份有限公司 | Integrated adsorption tower and oxygen-nitrogen separation device using same |
| CN117759804A (en) * | 2023-12-12 | 2024-03-26 | 深圳市安保医疗科技股份有限公司 | Oxygen generating device and oxygen generating machine having the oxygen generating device |
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| US20090065007A1 (en) * | 2007-09-06 | 2009-03-12 | Wilkinson William R | Oxygen concentrator apparatus and method |
| CN109019519B (en) * | 2018-07-25 | 2024-11-15 | 广东欧格斯科技有限公司 | Portable oxygenerator |
| CN218553609U (en) * | 2022-10-26 | 2023-03-03 | 南京科本医疗科技有限公司 | Oxygen generator double-tower gas circuit switching structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214261263U (en) * | 2020-11-26 | 2021-09-24 | 江苏鱼跃医疗设备股份有限公司 | Integrated adsorption tower and oxygen-nitrogen separation device using same |
| CN117759804A (en) * | 2023-12-12 | 2024-03-26 | 深圳市安保医疗科技股份有限公司 | Oxygen generating device and oxygen generating machine having the oxygen generating device |
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