Multi-valve group type miniature oxygen squeezing device

Abstract

The utility model discloses a multi-valve group type miniature oxygen squeezing device which comprises a shell and an air inlet filter screen fixedly arranged on one side of the shell, an inner support is fixedly arranged on one side of the bottom of the inner wall of the shell, and a small air compressor is fixedly installed on the inner support. According to the multi-valve-group type miniature oxygen squeezing device, a hand-held design is adopted, the integral structural design is compact, a power supply structure is arranged in the device, a user can carry the device flexibly according to needs, the application range is wide, the double squeezing tanks are adopted, and the device is convenient to use and easy to popularize. The multi-valve-group design is adopted, the valve groups are used for guiding and discharging oxygen, one squeezing tank is used for squeezing oxygen, and one squeezing tank is used for discharging tail gas, and work alternately, so that the oxygen squeezing efficiency and concentration can be improved, meanwhile, cleaning and maintenance are convenient, and the device has the advantages of being convenient to manage, small, portable, stable in oxygen supply, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of medical oxygen supply equipment, in particular to a multi-valve group type micro oxygen extraction device. Background Art

[0002] Patients with respiratory disorders or in an environment with low oxygen concentration need to use an oxygen extractor to increase the oxygen concentration in the breathing gas. Currently, the most common oxygen extractors mainly use zeolite oxygen molecular sieves to filter the pressurized air to increase the oxygen content. They are mainly composed of an air compressor, an oxygen filter tank, and an oxygen storage tank. The above common types of oxygen extractors still have the following shortcomings in actual applications:

[0003] The oxygen extraction device is large in size and requires an external power supply, so it is not convenient to carry and use flexibly. At the same time, the internal air supply valve group is one-way, which is not convenient for backwashing and cleaning of the oxygen extraction tank. Utility Model Content

[0004] The utility model aims to provide a multi-valve group type micro oxygen extraction device to solve the problems of the existing oxygen extraction device mentioned in the background art that it is inconvenient to carry and the internal air supply valve group is one-way and inconvenient to clean.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-valve group type micro oxygen extraction device, comprising a shell and an air intake filter fixedly arranged on one side of the shell, an inner bracket is fixedly arranged on one side of the bottom of the inner wall of the shell, a small air compressor is fixedly installed on the inner bracket, an air outlet of the small air compressor is fixedly connected to a diverter valve group for alternate air diversion and extraction, the air outlet of the diverter valve group is fixedly connected to two oxygen extraction components, the bottoms of the two oxygen extraction components are fixedly installed with oxygen diversion valve groups, an oxygen storage conduit and a recoil pipe are fixedly connected between the two oxygen diversion valve groups, an oxygen storage tank is fixedly installed on one end of the oxygen storage conduit, the air outlet of the oxygen storage tank is fixedly connected to an oxygen supply valve group, a single-chip microcomputer controller is fixedly installed on the top of the inner bracket, and a battery is fixedly installed on the inner side of the inner bracket.

[0006] Preferably, the diverter valve group includes an air intake three-way valve and an air distribution pipe fixedly connected to both ends of the air intake three-way valve, a first solenoid valve is fixedly installed in the middle of the two air distribution pipes, one side of the two air distribution pipes is fixedly connected to a reverse exhaust pipe, the middle of the two reverse exhaust pipes is fixedly installed with an electromagnetic exhaust valve, a nitrogen exhaust pipe is fixedly connected between the two reverse exhaust pipes, and one end of the nitrogen exhaust pipe extends to the outside of the outer shell.

[0007] Preferably, the two oxygen extraction assemblies each include an oxygen extraction tank and a sealed bottom cover threadedly arranged at the bottom end of the oxygen extraction tank, an extraction and separation cylinder is fixedly installed in the middle of the sealed bottom cover, the extraction and separation cylinder is arranged inside the oxygen extraction tank, an oxygen molecular sieve is fixedly installed on the top of the extraction and separation cylinder, a sealing ring is fixedly arranged at the connection between the oxygen extraction tank and the sealed bottom cover, and the bottom ends of the two gas distribution pipes are respectively fixedly connected to the top ends of the two oxygen extraction tanks, so as to facilitate the disassembly and replacement of the oxygen molecular sieve.

[0008] Preferably, the oxygen diversion valve group includes an outlet three-way valve and a diversion tube fixedly connected to one end of the outlet three-way valve, a second solenoid valve is fixedly installed in the middle of the diversion tube, the diversion tube is fixedly connected to the oxygen storage conduit, the other end of the outlet three-way valve is fixedly connected to the recoil tube, a third solenoid valve is fixedly installed at the connection between the outlet three-way valve and the recoil tube, and the top end of the outlet three-way valve is fixedly connected to the outlet of the oxygen extraction tank; it can divert the extracted oxygen.

[0009] Preferably, the oxygen supply valve group includes an oxygen separation three-way valve and an oxygen supply hose fixedly connected to one end of the oxygen separation three-way valve, an electronic oxygen supply current limiting valve is fixedly installed on the oxygen supply hose, the oxygen supply hose extends to the outside of the shell, the other end of the oxygen separation three-way valve is fixedly connected to the recoil pipe, and a backflush current limiting valve is fixedly installed at the connection between the oxygen separation three-way valve and the recoil pipe; oxygen can be diverted and supplied, which is convenient to use.

[0010] Preferably, a mask storage box is fixedly arranged on the back side of the shell, and the mask storage box is arranged opposite to the oxygen supply hose, so as to facilitate the storage of the mask.

[0011] Preferably, a portable handle is fixedly provided in the middle of the top of the shell, a control panel is fixedly installed on one side of the top of the shell, and a touch screen and a power switch are fixedly installed on the surface of the control panel; the oxygen extraction device is convenient to carry and use.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The oxygen extraction device adopts a portable design with a compact overall structure and a built-in power supply structure. Users can carry it flexibly according to their needs. It has a wide range of applications and adopts a double extraction tank with a multi-valve group design. Oxygen is discharged through the valve group. One extraction tank extracts oxygen and the other extracts exhaust gas. They work alternately, which not only improves the oxygen extraction efficiency and concentration, but also facilitates cleaning and maintenance. It is easy to manage, compact and portable, has a stable oxygen supply, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the oxygen extraction device of the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the rear cover of the oxygen extraction device of the utility model;

[0016] Figure 3 This is a schematic diagram of the oxygen flow principle of the A extraction tank of the utility model;

[0017] Figure 4 This is a schematic diagram of the oxygen flow principle of the B extraction tank of the utility model;

[0018] Figure 5 It is a front cross-sectional view of the oxygen extraction component of the utility model.

[0019] In the figure: 1. Shell; 2. Control panel; 3. Air intake filter; 4. Portable handle; 5. Small air compressor; 6. Single chip microcomputer controller; 7. Inner bracket; 8. Oxygen extraction component; 81. Oxygen extraction tank; 82. Sealed bottom cover; 83. Extraction and separation cylinder; 84. Oxygen molecular sieve; 85. Sealing ring; 9. Battery; 10. Oxygen storage tank; 11. Mask storage box; 12. Oxygen supply hose; 13. Inlet three-way valve; 14. Gas distribution pipe; 15. First solenoid valve; 16. Back discharge pipe; 17. Solenoid exhaust valve; 18. Nitrogen exhaust pipe; 19. Outlet three-way valve; 20. Flow guide pipe; 21. Second solenoid valve; 22. Third solenoid valve; 23. Recoil pipe; 24. Oxygen storage conduit; 25. Oxygen distribution three-way valve; 26. Electronic oxygen supply current limiting valve; 27. Backblowing current limiting valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-5The utility model provides a multi-valve group type micro oxygen extraction device, comprising a shell 1 and an air intake filter 3 fixedly arranged on one side of the shell 1, an inner bracket 7 is fixedly arranged on one side of the bottom of the inner wall of the shell 1, a small air compressor 5 is fixedly installed on the inner bracket 7, an air outlet of the small air compressor 5 is fixedly connected with a diverter valve group for alternate air diversion and extraction, the air outlet of the diverter valve group is fixedly connected with two oxygen extraction components 8, the bottoms of the two oxygen extraction components 8 are fixedly installed with oxygen diversion valve groups, and an oxygen storage valve is fixedly connected between the two oxygen diversion valve groups. The conduit 24 and the recoil tube 23, one end of the oxygen storage conduit 24 is fixedly installed with an oxygen storage tank 10, the air outlet of the oxygen storage tank 10 is fixedly connected with an oxygen supply valve group, the top of the inner bracket 7 is fixedly installed with a single-chip controller 6, the inner side of the inner bracket 7 is fixedly installed with a battery 9, the back of the outer shell 1 is fixedly provided with a mask storage box 11, the mask storage box 11 is arranged opposite to the oxygen supply hose 12, the middle part of the top of the outer shell 1 is fixedly provided with a portable grip 4, the side of the top of the outer shell 1 is fixedly installed with a control panel 2, and the surface of the control panel 2 is fixedly installed with a touch screen and a power switch;

[0022] When in use, after the user starts the oxygen extraction device through the power switch, the small air compressor 5 will work, and the external air will enter the outer shell 1 through the air intake filter 3. Then the air will enter the diverter valve group through the small air compressor 5, and then enter the oxygen extraction component 8 through the diverter valve group. After the oxygen in the air is extracted and separated, it will enter the oxygen storage tank 10 along the oxygen storage conduit 24 through the oxygen guide valve group for storage. The oxygen in the oxygen storage tank 10 is supplied to the oxygen supply hose 12 through the oxygen supply valve group. The user installs the breathing mask at the end of the oxygen supply hose 12 and can breathe.

[0023] See also Figure 1 , Figure 3 and Figure 4 , further, the diverter valve group includes an air intake three-way valve 13 and an air distribution pipe 14 fixedly connected to both ends of the air intake three-way valve 13, a first solenoid valve 15 is fixedly installed in the middle of the two air distribution pipes 14, one side of the two air distribution pipes 14 is fixedly connected to a reverse exhaust pipe 16, the middle of the two reverse exhaust pipes 16 is fixedly installed with an electromagnetic exhaust valve 17, a nitrogen exhaust pipe 18 is fixedly connected between the two reverse exhaust pipes 16, and one end of the nitrogen exhaust pipe 18 extends to the outside of the housing 1;

[0024] During use, air enters the air intake three-way valve 13 through the small air compressor 5, and only one of the first solenoid valves 15 on the two air distribution pipes 14 is opened at the same time. At this time, the air enters the corresponding oxygen extraction component 8 along the air distribution pipe 14 with the first solenoid valve 15 opened, so as to realize the diversion and extraction of oxygen. The electromagnetic exhaust valve 17 on the reverse discharge pipe 16 with the first solenoid valve 15 not opened will be opened, and the remaining compressed nitrogen in the idle oxygen extraction component 8 after extraction will be immersed in the nitrogen discharge pipe 18 through the reverse discharge pipe 16, and finally discharged from the outer shell 1, so that the two oxygen extraction components 8 can work alternately and improve the oxygen extraction efficiency.

[0025] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 Further, the two oxygen extraction assemblies 8 each include an oxygen extraction tank 81 and a sealed bottom cover 82 threadedly arranged at the bottom end of the oxygen extraction tank 81, a extraction and separation cylinder 83 is fixedly installed in the middle of the sealed bottom cover 82, the extraction and separation cylinder 83 is arranged inside the oxygen extraction tank 81, an oxygen molecular sieve 84 is fixedly installed on the top of the extraction and separation cylinder 83, a sealing ring 85 is fixedly arranged at the connection between the oxygen extraction tank 81 and the sealed bottom cover 82, and the bottom ends of the two gas distribution pipes 14 are respectively fixedly connected to the top ends of the two oxygen extraction tanks 81;

[0026] When in use, after the air enters the oxygen extraction tank 81, it will be filtered through the oxygen molecular sieve 84, which is a zeolite molecular sieve. The oxygen in the air is filtered through the oxygen molecular sieve 84, and the filtered oxygen enters the extraction and separation cylinder 83 and is finally discharged. The remaining nitrogen is retained in the oxygen extraction tank 81, and is discharged through the reverse discharge pipe 16 when the oxygen extraction tank 81 is idle.

[0027] See also Figure 3 and Figure 4 Further, the oxygen diversion valve group includes an outlet three-way valve 19 and a diversion pipe 20 fixedly connected to one end of the outlet three-way valve 19, a second solenoid valve 21 is fixedly installed in the middle of the diversion pipe 20, the diversion pipe 20 is fixedly connected to the oxygen storage conduit 24, the other end of the outlet three-way valve 19 is fixedly connected to the recoil pipe 23, a third solenoid valve 22 is fixedly installed at the connection between the outlet three-way valve 19 and the recoil pipe 23, and the top end of the outlet three-way valve 19 is fixedly connected to the outlet of the oxygen extraction tank 81;

[0028] When in use, the extracted oxygen enters the guide pipe 20 through the outlet three-way valve 19, and finally enters the oxygen storage tank 10 through the oxygen storage conduit 24 for storage. A part of the oxygen in the oxygen storage tank 10 is diverted through the oxygen supply valve group, enters the idle oxygen extraction tank 81 through the recoil pipe 23, and recoils from the bottom of the oxygen extraction tank 81, thereby increasing the discharge rate of nitrogen in the idle oxygen extraction tank 81.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 Further, the oxygen supply valve group includes an oxygen separation three-way valve 25 and an oxygen supply hose 12 fixedly connected to one end of the oxygen separation three-way valve 25, an electronic oxygen supply current limiting valve 26 is fixedly installed on the oxygen supply hose 12, the oxygen supply hose 12 extends to the outside of the housing 1, the other end of the oxygen separation three-way valve 25 is fixedly connected to the recoil pipe 23, and a backwash current limiting valve 27 is fixedly installed at the connection between the oxygen separation three-way valve 25 and the recoil pipe 23;

[0030] When in use, the oxygen in the oxygen storage tank 10 enters the oxygen separation three-way valve 25, and a part of it enters the breathing mask through the oxygen supply hose 12 for use by the patient after the flow rate is controlled by the electronic oxygen supply limiting valve 26, and the other part enters the idle oxygen extraction tank 81 through the recoil pipe 23 after the flow is limited by the backflush limiting valve 27, and recoils from the bottom of the oxygen extraction tank 81, thereby increasing the discharge rate of nitrogen in the idle oxygen extraction tank 81.

[0031] When the embodiment of the present application is in use: the user can hold the portable handle 4 to carry the oxygen extraction device as a whole. The whole device is small and convenient to carry. The breathing mask can be stored in the mask storage box 11 for easy use.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-valve group type micro oxygen extraction device, comprising a housing (1) and an air intake filter (3) fixedly arranged on one side of the housing (1), characterized in that: An inner bracket (7) is fixedly arranged on one side of the bottom of the inner wall of the shell (1); a small air compressor (5) is fixedly mounted on the inner bracket (7); an air outlet of the small air compressor (5) is fixedly connected to a diverter valve group for alternate air diversion and extraction; the air outlet of the diverter valve group is fixedly connected to two oxygen extraction assemblies (8); an oxygen diversion valve group is fixedly mounted on the bottom of the two oxygen extraction assemblies (8); an oxygen storage conduit (24) and a recoil pipe (23) are fixedly connected between the two oxygen diversion valve groups; an oxygen storage conduit (10) is fixedly mounted on one end of the oxygen storage conduit (24); the air outlet of the oxygen storage tank (10) is fixedly connected to an oxygen supply valve group; a single-chip microcomputer controller (6) is fixedly mounted on the top of the inner bracket (7); and a storage battery (9) is fixedly mounted on the inner side of the inner bracket (7).

2. A multi-valve group type micro oxygen extraction device according to claim 1, characterized in that: The diverter valve group comprises an air intake three-way valve (13) and an air distribution pipe (14) fixedly connected to both ends of the air intake three-way valve (13); a first solenoid valve (15) is fixedly installed in the middle of the two air distribution pipes (14); one side of the two air distribution pipes (14) is fixedly connected to a reverse exhaust pipe (16); the middle of the two reverse exhaust pipes (16) is fixedly installed with an electromagnetic exhaust valve (17); a nitrogen exhaust pipe (18) is fixedly connected between the two reverse exhaust pipes (16); one end of the nitrogen exhaust pipe (18) extends to the outside of the housing (1).

3. A multi-valve group type micro oxygen extraction device according to claim 2, characterized in that: The two oxygen extraction assemblies (8) each comprise an oxygen extraction tank (81) and a sealed bottom cover (82) threadedly arranged at the bottom end of the oxygen extraction tank (81); an extraction and separation cylinder (83) is fixedly installed in the middle of the sealed bottom cover (82); the extraction and separation cylinder (83) is arranged inside the oxygen extraction tank (81); an oxygen molecular sieve (84) is fixedly installed on the top of the extraction and separation cylinder (83); a sealing ring (85) is fixedly arranged at the connection between the oxygen extraction tank (81) and the sealed bottom cover (82); and the bottom ends of the two gas distribution pipes (14) are respectively fixedly connected to the top ends of the two oxygen extraction tanks (81).

4. A multi-valve group type micro oxygen extraction device according to claim 3, characterized in that: The oxygen flow guide valve group comprises an outlet three-way valve (19) and a flow guide pipe (20) fixedly connected to one end of the outlet three-way valve (19); a second electromagnetic valve (21) is fixedly installed in the middle of the flow guide pipe (20); the flow guide pipe (20) is fixedly connected to an oxygen storage conduit (24); the other end of the outlet three-way valve (19) is fixedly connected to a recoil pipe (23); a third electromagnetic valve (22) is fixedly installed at the connection between the outlet three-way valve (19) and the recoil pipe (23); and the top end of the outlet three-way valve (19) is fixedly connected to the outlet of the oxygen extraction tank (81).

5. The multi-valve group type micro oxygen extraction device according to claim 1, characterized in that: The oxygen supply valve group comprises an oxygen separation three-way valve (25) and an oxygen supply hose (12) fixedly connected to one end of the oxygen separation three-way valve (25); an electronic oxygen supply flow limiting valve (26) is fixedly installed on the oxygen supply hose (12); the oxygen supply hose (12) extends to the outside of the housing (1); the other end of the oxygen separation three-way valve (25) is fixedly connected to a recoil pipe (23); and a backwash flow limiting valve (27) is fixedly installed at the connection between the oxygen separation three-way valve (25) and the recoil pipe (23).

6. A multi-valve group type micro oxygen extraction device according to claim 5, characterized in that: A mask storage box (11) is fixedly arranged on the back of the shell (1), and the mask storage box (11) is arranged directly opposite to the oxygen supply hose (12).

7. The multi-valve group type micro oxygen extraction device according to claim 1, characterized in that: A portable handle (4) is fixedly arranged in the middle of the top of the housing (1), a control panel (2) is fixedly installed on one side of the top of the housing (1), and a touch screen and a power switch are fixedly installed on the surface of the control panel (2).

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