A portable molecular sieve oxygen generator

Abstract

The present invention discloses a portable molecular sieve oxygen concentrator, which relates to the technical field of molecular sieve oxygen concentrators. The portable molecular sieve oxygen concentrator comprises an air inlet bin, a compressor, a multi-way valve, a molecular sieve, an oxygen storage tank and a breathing regulator. The air inlet bin is detachable and is used to filter gas. The air inlet bin is connected to the air inlet of the compressor. The compressor is electrically connected to a battery, and the battery is also electrically connected to the multi-way valve and the breathing regulator respectively. The multi-way valve is provided with a valve air inlet, a common port and a valve exhaust. The valve air inlet is connected to the air outlet of the compressor, and the common port is connected to the molecular sieve. The molecular sieve is connected to the oxygen storage tank, and a pressure equalizing valve is installed between the connection between the molecular sieve and the oxygen storage tank. The oxygen storage tank is connected to the breathing regulator. The breathing regulator is used to detect and adjust the oxygen output concentration and oxygen output flow rate. The present invention can improve the oxygen production efficiency and can adjust the output oxygen at different gears. It solves the technical problem of low oxygen production efficiency of the oxygen production mechanism of the existing molecular sieve oxygen concentrator.

Description

Technical Field

[0001] The present invention relates to the technical field of molecular sieve oxygen generators, in particular to a portable molecular sieve oxygen generator. Background Art

[0002] With the progress of society, oxygen concentrators are widely used, such as outdoor emergency oxygen inhalation for medical treatment, medical emergency oxygen inhalation, home oxygen inhalation, outdoor oxygen inhalation for plateau work, and oxygen inhalation for guests with altitude sickness to relieve the stress response caused by altitude sickness; due to the development of portable oxygen concentrators, the above needs and special working conditions are fully met, and portable oxygen concentrators can cope with emergency oxygen inhalation needs, and thus are recognized by the market, thereby promoting the use of portable oxygen concentrators.

[0003] As a medical device, the oxygen concentrator has very high reliability requirements, and the requirements for portable oxygen concentrators are even higher. In terms of mechanical design, the simpler the design and coordination of the mechanism, the higher the reliability of the equipment as a whole. Due to the ingenious structural design, the portable oxygen concentrator can be light enough and meet the basic requirements of high oxygen production efficiency, safety and high reliability when carried.

[0004] The mainstream technical direction of existing oxygen concentrators basically adopts the solution of molecular sieve pulse oxygen production technology. The working principle of molecular sieve pulse oxygen production is to separate oxygen and nitrogen in the air through molecular sieve pressure swing adsorption to obtain high-concentration oxygen. However, the disadvantages of the molecular sieve oxygen production mechanism of existing oxygen concentrators are that the internal structure of the oxygen concentrator is complex and the oxygen production efficiency is low, resulting in poor reliability, large structure volume and heavy weight of the portable oxygen concentrator, which brings great inconvenience and unsafety to use, and is difficult to cope with outdoor use in emergency situations.

[0005] In summary, the applicant has discovered that the prior art has at least the following technical problems:

[0006] The existing molecular sieve oxygen generator has the technical problem of low oxygen production efficiency of the oxygen production mechanism. Summary of the Invention

[0007] The object of the present invention is to provide a portable molecular sieve oxygen concentrator to solve the technical problem of low oxygen production efficiency of the oxygen production mechanism of the existing molecular sieve oxygen concentrator.

[0008] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] The present invention provides a portable molecular sieve oxygen concentrator, comprising an air inlet bin, a compressor, a multi-way valve, a molecular sieve, an oxygen storage tank and a breathing regulator; the air inlet bin is detachable and is used to filter gas; the air inlet bin is connected to the air inlet of the compressor; the compressor is electrically connected to a battery, and the battery is also electrically connected to the multi-way valve and the breathing regulator respectively; the multi-way valve is provided with a valve inlet, a common port and a valve exhaust, the valve inlet is connected to the air outlet of the compressor, and the common port is connected to the molecular sieve; the molecular sieve is connected to the oxygen storage tank, and a pressure equalizing valve is installed between the connection between the molecular sieve and the oxygen storage tank, and the oxygen storage tank is connected to the breathing regulator; the breathing regulator is used to detect and adjust the oxygen concentration and oxygen flow rate.

[0011] In one embodiment, the air intake bin is provided with an air intake member, and the air intake member is detachable; an air filter assembly is installed in the air intake bin, and the air filter assembly is detachable.

[0012] In one embodiment, the multi-way valve includes two three-position two-way solenoid valves, the valve air inlet, the common port and the valve exhaust; the two three-position two-way solenoid valves are each provided with a normally open end, a common end and a normally closed end; the two normally open ends are connected in parallel to the valve air inlet, and the two normally closed ends are connected in parallel to the valve exhaust; the common end is provided in the common port, and the common end is connected to the molecular sieve.

[0013] In one embodiment, the multi-way valve includes two three-position two-way solenoid valves, the valve air inlet, the common port and the valve exhaust; the two three-position two-way solenoid valves are each provided with a normally open end, a common end and a normally closed end; the two normally open ends are connected in parallel to the valve exhaust, and the two normally closed ends are connected in parallel to the valve air inlet; the common end is provided in the common port, and the common end is connected to the molecular sieve.

[0014] In one embodiment, the molecular sieve includes a first sieve barrel and a second sieve barrel; the two common ends are respectively connected to the air inlet of the first sieve barrel and the air inlet of the second sieve barrel; the air outlet of the first sieve barrel and the air outlet of the second sieve barrel are both connected to the pressure equalizing valve.

[0015] In one embodiment, the pressure equalizing valve includes a pressure equalizing tube, a flow limiting tube, an opening control solenoid valve and a one-way valve; the two pressure equalizing tubes are arranged on both sides of the pressure equalizing valve, and the air inlets of the two pressure equalizing tubes are respectively connected to the air outlet of the first screen barrel and the air outlet of the second screen barrel; the flow limiting tube and the opening control solenoid valve are sequentially connected in parallel with the pressure equalizing tube according to the air inlet direction of the pressure equalizing tube; the air inlets of the two one-way valves are respectively connected to the air outlets of the two pressure equalizing tubes, and the opening control solenoid valve is arranged between the one-way valve and the flow limiting tube, and the air outlets of the two one-way valves are both connected to the air inlet of the oxygen storage tank.

[0016] In one embodiment, the breathing regulator includes a breathing detection valve and a gear regulating valve, the breathing detection valve is electrically connected to the gear regulating valve; the breathing detection valve is connected to the air outlet of the oxygen storage tank; the breathing detection valve is connected to an oxygen inhalation port seat; and the gear regulating valve is electrically connected to the compressor.

[0017] In one embodiment, it also includes a shell, and the air intake bin, the compressor, the multi-way valve, the molecular sieve, the oxygen storage tank, the breathing regulator, the equalizing valve and the battery are all arranged in the shell; a power switch and a plurality of oxygen inhalation gear adjustment buttons are provided on the shell; a fan is provided near the compressor, and a circuit controller is provided near the fan, and the power switch and the circuit controller are both electrically connected to the battery; the circuit controller is electrically connected to the multi-way valve, the breathing regulator, the fan switch and the plurality of oxygen inhalation gear adjustment buttons.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The air intake bin is detachable and is used to filter gas; the air intake bin is provided with an air inlet piece, which is detachable; an air filter assembly is installed in the air intake bin, which is detachable; because the air inlet piece of the air intake bin is detachable, the air filter assembly in the air intake bin can be taken out from the hole of the removed air inlet piece, realizing the replaceable design of the air filter assembly. Regular replacement of the air filter assembly optimizes the oxygen production effect and facilitates use and maintenance.

[0020] 2. The air enters the compressor after being filtered by the air filter assembly, and the air enters the multi-way valve from the compressor, because the multi-way valve includes two three-position two-way solenoid valves; the two three-position two-way solenoid valves are each provided with a normally open end, a common end and a normally closed end; the two three-position two-way solenoid valves can be opened or closed simultaneously for a short time, and the multi-way valve controls the two three-position two-way solenoid valves to allow compressed air to enter the first sieve barrel and the second sieve barrel in turn; when the compressed air enters the first sieve barrel, the air inlet channel of the second sieve barrel is closed and switched to the exhaust channel; when the compressed air enters the second sieve barrel, the air inlet channel of the first sieve barrel is closed and switched to the exhaust channel; at the same time, the air outlet of the first sieve barrel and the air outlet of the second sieve barrel are both connected to the pressure equalizing valve. Under the support of the pressure equalizing valve, the pressure equalizing valve can accelerate the exhaust gas discharge speed of the first sieve barrel or the second sieve barrel; thereby improving the oxygen production efficiency, achieving the function of optimizing the oxygen production effect, and solving the technical problem of low oxygen production efficiency of the existing molecular sieve oxygen generator.

[0021] 3. The breathing detection valve is electrically connected to the gear regulating valve; the breathing detection valve is communicated with the air outlet of the oxygen storage tank; the gear regulating valve is electrically connected to the compressor; the oxygen concentration and oxygen output are fed back by the breathing detection valve to help the gear regulating valve control the continuous oxygen output or pulse oxygen output mode; and then the oxygen output is adjusted by the multiple oxygen inhalation gear adjustment buttons provided on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention after the outer shell is hidden;

[0025] Figure 3 It is a schematic diagram of the internal structure of the present invention with some components hidden;

[0026] Figure 4 This is a schematic side view of the structure of the present invention after the housing is hidden;

[0027] Figure 5 1 is a schematic diagram of the planar structure of the multi-way valve of the present invention;

[0028] Figure 6 It is a schematic diagram of the planar structure of the pressure equalizing valve of the present invention.

[0029] The accompanying drawings are numerals as follows:

[0030] 1. Air intake chamber; 11. Air intake part; 12. Air filter assembly;

[0031] 2. Compressor;

[0032] 3. Multi-way valve; 31. Valve air inlet; 32. Common port; 33. Valve exhaust; 34. Three-position two-way solenoid valve; 341. Normally open end; 342. Common end; 343. Normally closed end;

[0033] 4. Molecular sieve; 41. First sieve barrel; 42. Second sieve barrel;

[0034] 5. Pressure equalizing valve; 51. Pressure equalizing tube; 52. Flow limiting tube; 53. Opening control solenoid valve; 54. Check valve;

[0035] 6. Oxygen storage tank;

[0036] 7. Breathing regulator; 71. Breathing detection valve; 711. Oxygen inhalation port seat; 72. Gear adjustment valve;

[0037] 8. Battery;

[0038] 9. Casing; 91. Power switch; 92. Oxygen inhalation level adjustment button; 93. Fan; 94. Circuit controller. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0040] The first embodiment of the portable molecular sieve oxygen concentrator is as follows Figures 1 to 6 As shown, it includes an air intake bin 1, a compressor 2, a multi-way valve 3, a molecular sieve 4, an oxygen storage tank 6 and a breathing regulator 7; the air intake bin 1 is detachable and is used to filter gas; the air intake bin 1 is connected to the air inlet of the compressor 2; the compressor 2 is electrically connected to a battery 8, and the battery 8 is also electrically connected to the multi-way valve 3 and the breathing regulator 7 respectively; the multi-way valve 3 is provided with a valve air intake 31, a common port 32 and a valve exhaust 33, the valve air intake 31 is connected to the air outlet of the compressor 2, and the common port 32 is connected to the molecular sieve 4; the molecular sieve 4 is connected to the oxygen storage tank 6, and a pressure equalizing valve 5 is installed between the connection between the molecular sieve 4 and the oxygen storage tank 6, and the oxygen storage tank 6 is connected to the breathing regulator 7; the breathing regulator 7 is used to detect and adjust the oxygen concentration and oxygen flow rate.

[0041] Regarding the specific structure of the multi-way valve 3, this embodiment Figures 2 to 5 As shown, the multi-way valve 3 includes two three-position two-way solenoid valves 34, a valve air inlet 31, a common port 32 and a valve exhaust 33; the two three-position two-way solenoid valves 34 are each provided with a normally open end 341, a common end 342 and a normally closed end 343; the two normally open ends 341 are connected in parallel to the valve air inlet 31, and the two normally closed ends 343 are connected in parallel to the valve exhaust 33; the common end 342 is provided in the common port 32, and the common end 342 is connected to the molecular sieve 4.

[0042] During application, the normally open end 341 and the normally closed end 343 of the two three-position two-way solenoid valves 34 can be opened and closed simultaneously for a short period of time, thereby optimizing oxygen production and improving oxygen production efficiency.

[0043] Regarding the specific oxygen production structure of the molecular sieve 4, this embodiment Figures 2 to 6 As shown, the molecular sieve 4 includes a first sieve barrel 41 and a second sieve barrel 42; the two common ends 342 are respectively connected to the air inlet of the first sieve barrel 41 and the air inlet of the second sieve barrel 42; the air outlet of the first sieve barrel 41 and the air outlet of the second sieve barrel 42 are both connected to the pressure equalizing valve 5.

[0044] Regarding the specific internal structure of the above-mentioned pressure equalizing valve 5, this embodiment Figures 2 to 6 As shown, the pressure equalizing valve 5 includes a pressure equalizing tube 51, a flow limiting tube 52, an opening control solenoid valve 53 and a one-way valve 54; the two pressure equalizing tubes 51 are arranged on both sides of the pressure equalizing tube 5, and the air inlets of the two pressure equalizing tubes 51 are respectively connected to the air outlet of the first sieve barrel 41 and the air outlet of the second sieve barrel 42; the flow limiting tube 52 and the opening control solenoid valve 53 are connected in parallel with the pressure equalizing tube 51 according to the air inlet direction of the pressure equalizing tube 51; the air inlets of the two one-way valves 54 are respectively connected to the air outlets of the two pressure equalizing tubes 51, and an opening control solenoid valve 53 is arranged between the one-way valve 54 and the flow limiting tube 52, and the air outlets of the two one-way valves 54 are both connected to the air inlet of the oxygen storage tank 6.

[0045] Regarding the specific composition of the breathing regulator 7, this embodiment Figure 2 As shown, the breathing regulator 7 includes a breathing detection valve 71 and a gear regulating valve 72, the breathing detection valve 71 is electrically connected to the gear regulating valve 72; the breathing detection valve 71 is connected to the air outlet of the oxygen storage tank 6; the breathing detection valve 71 is connected to the oxygen inhalation port seat 711; the gear regulating valve 72 is electrically connected to the compressor 2.

[0046] Beneficial effect: The air is filtered through the air inlet bin 1 and then enters the compressor 2. The compressor 2 sprays out compressed air, and the compressed air enters the multi-way valve 3, because the multi-way valve 3 includes two three-position two-way solenoid valves 34; the two three-position two-way solenoid valves 34 are each provided with a normally open end 341, a common end 342 and a normally closed end 343; the two three-position two-way solenoid valves 34 can be opened or closed at the same time for a short time, and the multi-way valve 3 controls the two three-position two-way solenoid valves 34 to allow the compressed air to enter the first sieve barrel 41 and the second sieve barrel 42 in turn; when the compressed air enters the first sieve barrel 41, the air inlet channel of the second sieve barrel 42 is closed and switched to the exhaust channel; when the compressed air enters the second sieve barrel 42, the air inlet channel of the first sieve barrel 41 is closed and switched to the exhaust channel; at the same time, the air outlet of the first sieve barrel 41 and the air outlet of the second sieve barrel 42 are both connected to the pressure equalizing valve 5. With the support of the pressure equalizing valve 5, the pressure equalizing valve 5 can accelerate the exhaust gas discharge speed of the first sieve barrel 41 or the second sieve barrel 42; thereby improving the oxygen production efficiency, achieving the function of optimizing the oxygen production effect, and solving the technical problem of low oxygen production efficiency of the existing molecular sieve 4 oxygen generator.

[0047] As an optional embodiment,

[0048] Regarding the specific detachable structure of the air inlet bin 1 and its structure for filtering gas, this embodiment is as follows: Figure 3 and Figure 4 As shown, the air intake bin 1 is provided with an air intake member 11, which is detachable; an air filter assembly 12 is installed in the air intake bin 1, which is detachable.

[0049] Furthermore, the air filter component 12 is a negative ion precipitation filter component.

[0050] Beneficial effects: The air filtration capacity of the negative ion precipitation filter component is stronger than that of the traditional air filter element, and the dust in the air is easier to settle and filter out. At the same time, the negative ion precipitation filter component has a longer component life, which can reduce the number of replacements of the air filter component 12 in the air intake bin 1, thereby reducing the later use cost and maintenance cost of the portable molecular sieve oxygen concentrator, and making the portable molecular sieve oxygen concentrator more convenient to use.

[0051] Regarding the accessory parts of the portable molecular sieve oxygen concentrator, this embodiment is as follows: Figures 1 to 6 As shown, it also includes an outer shell 9, and the air intake chamber 1, compressor 2, multi-way valve 3, molecular sieve 4, oxygen storage tank 6, breathing regulator 7, equalizing valve 5 and battery 8 are all arranged in the outer shell 9; a power switch 91 and multiple oxygen inhalation gear adjustment buttons 92 are provided on the outer shell 9; a fan 93 is provided near the compressor 2, and a circuit controller 94 is provided near the fan 93, and the power switch 91 and the circuit controller 94 are both electrically connected to the battery 8; the circuit controller 94 is electrically connected to the multi-way valve 3, breathing regulator 7, fan 93 and multiple oxygen inhalation gear adjustment buttons 92.

[0052] When in use, the fan 93 can dissipate heat for the compressor 2 and the circuit controller 94. The circuit controller 94 is used to control the negative ion precipitation filter component, the compressor 2, the multi-way valve 3, the breathing regulator 7 and the pressure equalizing valve 5 in the portable molecular sieve oxygen concentrator.

[0053] Beneficial effects: The breathing detection valve 71 is electrically connected to the gear regulating valve 72; the breathing detection valve 71 is connected to the air outlet of the oxygen storage tank 6; the gear regulating valve 72 is electrically connected to the compressor 2; the oxygen concentration and oxygen output are fed back by the breathing detection valve 71 to help the gear regulating valve 72 control the continuous oxygen output or pulse oxygen output mode; and then the oxygen output is adjusted by the multiple oxygen inhalation gear adjustment buttons 92 provided on the outer shell 9.

[0054] In particular, when in use, the pneumatic parts of the air inlet bin 1, compressor 2, multi-way valve 3, molecular sieve 4, oxygen storage tank 6, breathing detection valve 71 and oxygen inhalation port seat 711 are all connected through an air pipe; further, in order to improve the durability of the air pipe and prevent the pipe from hardening after long-term use, it is preferred to use a soft pipe.

[0055] A second embodiment of the portable molecular sieve oxygen concentrator (not shown) differs from the first embodiment in that the multi-way valve 3 includes two three-position two-way solenoid valves 34, a valve air inlet 31, a common port 32, and a valve exhaust 33; the two three-position two-way solenoid valves 34 are each provided with a normally open end 341, a common end 342, and a normally closed end 343; the two normally open ends 341 are connected in parallel to the valve exhaust 33, and the two normally closed ends 343 are connected in parallel to the valve air inlet 31; the common end 342 is provided in the common port 32, and the common end 342 is connected to the molecular sieve 4.

[0056] Beneficial effect: In the second embodiment, the normally open ends 341 on the two-position two-way solenoid valves 34 are connected in parallel to the valve exhaust 33 of the multi-way valve 3, and the normally closed ends 343 on the two-position two-way solenoid valves 34 are connected in parallel to the valve intake 31 of the multi-way valve 3. This connection method of the second embodiment is opposite to the connection method of the three-position two-way solenoid valve 34 with the valve intake 31 and the valve exhaust 33 in the first embodiment. The positive and negative connection functions of the normally open end 341 and the normally closed end 343 of the multi-way valve 3 can facilitate the flexible connection of the multi-way valve 3 with the compressor 2, the first sieve barrel 41 and the second sieve barrel 42.

[0057] The above is a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A portable molecular sieve oxygen concentrator, characterized in that: Including air intake chamber, compressor, multi-way valve, molecular sieve, oxygen storage tank and breathing regulator; The air inlet bin is detachable and is used for filtering gas; The air inlet bin is in communication with the air inlet of the compressor; The compressor is electrically connected to a battery, and the battery is also electrically connected to the multi-way valve and the breathing regulator respectively; The multi-way valve is provided with a valve inlet, a common port and a valve exhaust, the valve inlet is communicated with the air outlet of the compressor, and the common port is communicated with the molecular sieve; The molecular sieve is connected to the oxygen storage tank, a pressure equalizing valve is installed between the connection between the molecular sieve and the oxygen storage tank, and the oxygen storage tank is connected to the breathing regulator; The breathing regulator is used to detect and adjust the oxygen concentration and oxygen flow rate; The air inlet bin is provided with an air inlet member, and the air inlet member is detachable; An air filter assembly is installed in the air intake bin, and the air filter assembly is detachable; The multi-way valve comprises two three-position two-way solenoid valves, the valve air inlet, the common port and the valve exhaust; The two three-position two-way solenoid valves are both provided with a normally open end, a common end and a normally closed end; The two normally open ends are connected in parallel to the valve inlet, and the two normally closed ends are connected in parallel to the valve exhaust; The common end is arranged in the common port, and the common end is communicated with the molecular sieve; The molecular sieve includes a first sieve barrel and a second sieve barrel; The two common ends are respectively connected to the air inlet of the first sieve bucket and the air inlet of the second sieve bucket; The air outlet of the first sieve bucket and the air outlet of the second sieve bucket are both connected to the pressure equalizing valve; The pressure equalizing valve includes a pressure equalizing tube, a flow limiting tube, an opening control solenoid valve and a one-way valve; The two pressure-equalizing pipes are arranged on both sides of the pressure-equalizing valve, and the air inlets of the two pressure-equalizing pipes are respectively connected to the air outlet of the first sieve bucket and the air outlet of the second sieve bucket; The flow limiting tube and the opening control solenoid valve are sequentially connected in parallel with the pressure equalizing tube according to the air inlet direction of the pressure equalizing tube; The air inlets of the two one-way valves are respectively communicated with the air outlets of the two pressure-equalizing tubes. The opening control solenoid valve is arranged between the one-way valve and the flow-limiting tube. The air outlets of the two one-way valves are both communicated with the air inlet of the oxygen storage tank.

2. The portable molecular sieve oxygen concentrator according to claim 1, characterized in that: The breathing regulator includes a breathing detection valve and a gear regulating valve, and the breathing detection valve is electrically connected to the gear regulating valve; The breathing detection valve is communicated with the air outlet of the oxygen storage tank; The breathing detection valve is connected to the oxygen inhalation port seat; The gear regulating valve is electrically connected to the compressor.

3. The portable molecular sieve oxygen concentrator according to claim 1, characterized in that: It also includes a shell, wherein the air inlet bin, the compressor, the multi-way valve, the molecular sieve, the oxygen storage tank, the breathing regulator, the pressure equalizing valve and the battery are all arranged in the shell; The housing is provided with a power switch and a plurality of oxygen inhalation gear adjustment buttons; A fan is provided near the compressor, a circuit controller is provided near the fan, and the power switch and the circuit controller are both electrically connected to the battery; The circuit controller is electrically connected to the multi-way valve, the breathing regulator, the fan switch and the plurality of oxygen inhalation gear adjustment buttons.

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