CN115069064B - Portable oxygen generator - Google Patents
Portable oxygen generator Download PDFInfo
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- CN115069064B CN115069064B CN202211007657.1A CN202211007657A CN115069064B CN 115069064 B CN115069064 B CN 115069064B CN 202211007657 A CN202211007657 A CN 202211007657A CN 115069064 B CN115069064 B CN 115069064B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/053—Pressure swing adsorption with storage or buffer vessel
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/08—Mobile separation devices
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0028—Separation of the specific gas from gas mixtures containing a minor amount of this specific gas
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
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- Separation Of Gases By Adsorption (AREA)
Abstract
The invention relates to a portable oxygenerator, which comprises a main body, an adsorption tower assembly and a locking mechanism, wherein the main body is provided with a plurality of adsorption tower assemblies; the main body is provided with an air outlet female end and an air inlet female end; the adsorption tower assembly is provided with a gas outlet male end and a gas inlet male end, and is respectively matched with the gas outlet female end and the gas inlet female end; the locking mechanism is arranged between the main body and the adsorption tower assembly, is arranged on the main body, is matched with the air outlet male end, locks the air outlet male end in the air outlet female end and realizes the locking of the adsorption tower assembly and the main body; the adsorption tower component is integrally detachable, so that the adsorption tower component can be quickly replaced when the physical nitrogen filtering efficiency of the adsorption tower component is reduced, the difficulty of replacing the adsorption tower component by a user and the after-sale maintenance cost of a manufacturer are reduced to a greater extent, and the phenomenon of low oxygen is improved to a greater extent; the detachable structure can be realized through the locking mechanism, and the disassembly is convenient, so that the service time of the equipment is greatly prolonged, and the use cost of a user is reduced.
Description
Technical Field
The invention relates to the technical field of oxygen generators, in particular to a portable oxygen generator.
Background
The portable oxygen generator has the main characteristics of small volume and light weight, has the portable function, and further has enough potential in the market; the method adopts a physical pressure swing adsorption technology, realizes the physical separation of nitrogen and oxygen by utilizing the difference of adsorption capacities of molecular sieves on nitrogen and oxygen in the air at normal temperature, prepares high-purity oxygen meeting medical standards, and realizes sustainable and uninterrupted oxygen supply.
Because the oxygen generator must have the characteristic of portability, the reasonable control of the volume size of the oxygen generator is necessary; however, due to the characteristic of small volume, the molecular sieve has short performance maintaining time and generates the phenomenon of low oxygen, and the main solution for the phenomenon in the market at present is as follows: firstly, a user directly discards the whole oxygen generator; secondly, replacing the molecular sieve module by a manufacturer; based on this, reasonable reduction volume makes under the oxygenerator possesses portable condition, can realize that the removable of molecular sieve will be very necessary, and then can improve the low phenomenon of oxygen to a great extent. The invention develops a portable oxygen generator to solve the problems in the prior art.
Disclosure of Invention
The invention aims to: the utility model provides a portable oxygenerator to solve the problem that the user can't effectively solve fast to the low phenomenon of oxygen that portable oxygenerator appears in prior art.
The technical scheme of the invention is as follows: a portable oxygen generator comprising:
a main body having an air outlet female end and an air inlet female end;
an adsorption tower assembly having a gas outlet male end and a gas inlet male end and respectively mated with the gas outlet female end and the gas inlet female end;
and the locking mechanism is arranged between the main body and the adsorption tower assembly, is arranged on the main body, is matched with the air outlet male end, locks the air outlet male end in the air outlet female end, and realizes the locking of the adsorption tower assembly and the main body.
Preferably, the outer edge of the male end of the air outlet is provided with a locking groove, the locking mechanism acts on the locking groove in a normal state and comprises a locking switch and a first reset spring, the locking switch is clamped in the locking groove under the action of the first reset spring, is separated from the locking groove under the action of external force, and sequentially and correspondingly has a locking station and an opening station.
Preferably, the locking mechanism further comprises a clamping pin and a second reset spring, the clamping pin is used for limiting the locking switch under the state of opening the station under the action of the second reset spring, and the male end of the air outlet is directly inserted into the female end of the air outlet and is released from limiting along with the insertion of the male end of the air outlet.
Preferably, in the locking mechanism:
the locking switch is provided with a socket opposite to the female end of the air outlet, the lower edge of the socket is provided with a limiting groove, and the lower edges of the sockets at the two ends of the limiting groove are locking parts;
the first return spring is connected with the locking switch to drive the locking part to be clamped in the locking groove in a normal state;
the clamping pins are arranged along the horizontal direction, and the end parts of the clamping pins are inserted into the limiting grooves;
and the second reset spring is connected with the clamping pin, so that the outer wall of the clamping pin is driven to abut against the limiting groove in a normal state, and the locking part is separated from the locking groove.
Preferably, the outer end part of the clamping pin is provided with a first outer edge surface and a second outer edge surface, and the outer diameter of the first outer edge surface is smaller than that of the second outer edge surface; and when the locking switch is in an open station state, the second outer edge surface of the clamping pin is abutted against the limiting groove.
Preferably, a reed is further arranged between the main body and the adsorption tower assembly, the reed is fixed on the outer wall of the main body, and when the locking switch is located at a locking station, the reed is always abutted against the outer wall of the adsorption tower assembly; and when the locking switch is switched from the locking station to the opening station, applying elastic force to the adsorption tower assembly.
Preferably, the female end of gas outlet and the public end of gas outlet all set up one, the female end of air inlet and the public end of air inlet all set up two, locking mechanism corresponds female end of gas outlet and the public end of gas outlet of mutually supporting and sets up.
Preferably, a first cavity and a second cavity are arranged in the adsorption tower assembly, the upper ends of the first cavity and the second cavity are both air storage cavities, and the lower ends of the first cavity and the second cavity are both air inlet cavities; the first chamber and the second chamber are respectively provided with a material screening upper separation plate, a material screening lower separation plate;
a through cavity communicated with the male end of the air outlet is arranged between the first cavity and the air storage cavity at the upper end of the second cavity, and a three-way air passage is formed between the through cavity and the male end of the air outlet;
and the air inlet cavities at the lower ends of the first cavity and the second cavity are respectively and independently communicated with the male ends of the two air inlets.
Preferably, the sieve material bottom partition plate is fixedly arranged, the sieve material top partition plate is movably arranged and is pressed on the sieve material, and the upper end face is pressed with a compression spring.
Preferably, a battery module is further mounted below the main body, and a fastening structure is arranged between the battery module and the main body;
the buckle structure comprises a clamping groove arranged at the end part below the main body, a clamping protrusion matched with the clamping groove is arranged at the end part of the battery module, and the clamping protrusion is arranged on a pressing piece.
Compared with the prior art, the invention has the advantages that:
(1) The adsorption tower component is integrally detachable, so that the adsorption tower component can be quickly replaced when the physical nitrogen filtering efficiency of the adsorption tower component is reduced, the difficulty of replacing the adsorption tower component by a user and the after-sale maintenance cost of a manufacturer are reduced to a greater extent, and the phenomenon of low oxygen is improved to a greater extent; the detachable structure can be realized through the locking mechanism, and the disassembly is convenient, so that the service time of the equipment is greatly prolonged, and the use cost of a user is reduced.
(2) The male end of the air outlet can be used as a ventilation pipeline and can be matched with the locking mechanism to realize the locking of the adsorption tower assembly and the main body, and the locking by matching with the locking mechanism by adding other structures is avoided; under the condition that the space occupancy rate of the locking mechanism is small enough, the volumes of the adsorption tower assembly and the main body can be relatively large, and the oxygen generation time of the equipment can be prolonged.
(3) The outer edge of the male end of the air outlet is provided with a locking groove, the locking groove can be automatically locked in the locking mechanism under the action of the first reset spring and the reed and can be automatically popped out after being pressed, so that the quick assembly and disassembly of a user are facilitated, and the assembly and disassembly of the adsorption tower assembly along the horizontal direction are realized by matching a sliding rail and a sliding groove which are arranged between the main body and the adsorption tower assembly, so that the process is quicker; compared with the prior art that a handle is required to be added when the adsorption tower assembly is pulled out from the narrow space of the main body in the vertical direction, and a larger force is required, the efficiency of the adsorption tower assembly is greatly improved; the bayonet lock is deepened inside the main part along the horizontal direction, is realizing carrying on spacingly under the locking switch opens the station state to convenient next time main part and adsorption tower subassembly equipment, further the waste in space has been reduced.
(4) The main body and the adsorption tower assembly are provided with the slide rail and the slide groove, so that the adsorption tower assembly can be automatically inserted, and the installation is convenient; and through the effect of locking mechanism, realize the locking connection between main part and the adsorption tower subassembly, but both belong to clearance fit, consequently through addding the reed, can satisfy the adsorption tower subassembly and receive the rebound effect of reed to disassemble fast when dismantling, can satisfy again and be in the tensioning state all the time between main part and the adsorption tower subassembly under the assembled condition, can not loosen and collapse.
(5) The inside gas storage cavity structure that sets up of adsorption tower subassembly acts as the gas storage buffer tank, and the main part then need not set up gas holder structure again this moment, reduces the structure volume, satisfies portable requirement.
Drawings
The invention is further described below with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of a portable oxygen generator according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of the main body according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of an adsorption tower assembly according to embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a lock mechanism according to embodiment 1 of the present invention;
FIG. 5 is a schematic half-sectional view of a lock mechanism according to embodiment 1 of the present invention in a locked state;
FIG. 6 is an enlarged partial sectional view of the main body and the adsorption tower assembly according to example 1 of the present invention;
FIG. 7 is a schematic half-sectional view of a lock mechanism according to embodiment 1 of the present invention in an open state;
fig. 8 is a schematic view of a buckle structure according to embodiment 1 of the present invention;
fig. 9 is a schematic structural view of the inside of a adsorption tower assembly according to embodiment 2 of the present invention;
fig. 10 is a schematic view of an arrangement structure of a three-way gas path inside an adsorption tower assembly according to embodiment 2 of the present invention;
fig. 11 is a schematic structural view of a portable oxygen generator according to embodiment 3 of the present invention.
Wherein: 1. a main body;
10. the device comprises a connecting seat 11, a supporting seat 12, a sliding rail 13, an air outlet female end 14, an air inlet female end 15, a groove body 151 and a guide rail;
2. an adsorption column assembly;
21. the device comprises a sliding chute, 22, an air outlet male end, 23, a locking groove, 24, an air inlet male end, 25, a screen material upper partition plate, 26, a screen material, 27, a screen material lower partition plate, 28, an air storage cavity, 281, a through cavity, 29, an air inlet cavity, 210 and a compression spring;
3. a locking mechanism;
31. a locking switch 311, a pressing part 312, an inserting piece part 313, a socket 314, a locking part 315, a limiting groove 32, a first return spring 33, a bayonet lock 331, a first outer edge surface 332, a second outer edge surface 34 and a second return spring;
4. a battery module;
41. a clamping groove 42, a clamping protrusion 43 pressing piece;
5. and (5) a reed.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
example 1
As shown in fig. 1 and 2, a portable oxygen generator includes a main body 1, an adsorption tower assembly 2, a locking mechanism 3, and a battery module 4.
As shown in fig. 2, the main body 1 is an "L" shaped structure, a support 11 extends outwards in the horizontal direction, and two ends of the support 11 are provided with slide rails 12; an air outlet female end 13 and an air inlet female end 14 are arranged on the vertical end surface of one side of the deviation support seat 11; the outlet female end 13 is provided with one and is arranged at the upper middle part of the main body 1, and the inlet female end 14 is provided with two and is symmetrically arranged below the main body 1.
As shown in fig. 3, the adsorption tower assembly 2 is disposed above the support base 11, a pair of slide grooves 21 are symmetrically disposed on two sides of the lower end of the adsorption tower assembly, and can be inserted in the horizontal direction to realize the matching between the slide grooves 21 and the slide rails 12, so as to realize quick positioning, the slide grooves 21 are of a hidden design, the outermost edges of the slide grooves do not exceed the outermost sides of the adsorption tower assembly 2, and the shaking after installation can be avoided; the vertical end face of the adsorption tower component 2, which is close to one side of the main body 1, is provided with a gas outlet male end 22 and a gas inlet male end 24, wherein the gas outlet male end 22 is provided with one and is arranged in the middle of the upper part of the adsorption tower component 2, and the gas inlet male ends 24 are provided with two and are symmetrically arranged below the adsorption tower component 2; after the sliding grooves 21 are matched with the sliding rails 12, the matching of the air outlet female end 13 and the air outlet male end 22 and the matching of the air inlet female end 14 and the air inlet male end 24 can be realized.
In this embodiment, the air outlet male end 22 and the air inlet male end 24 of the adsorption tower assembly 2 are distributed on the same side of the adsorption tower assembly 2, and are symmetrically arranged with the air outlet female end 13 and the air inlet female end 14 on the same side of the main body 1, so that the structure is simple, and the user can conveniently detach and install the adsorption tower assembly.
As shown in fig. 4, the locking mechanism 3 is disposed between the main body 1 and the adsorption tower assembly 2, is mounted on the main body 1, and is engaged with the male air outlet end 22 when the male air outlet end 22 is inserted into the female air outlet end 13, and locks the male air outlet end 22 in the female air outlet end 13, and simultaneously locks the adsorption tower assembly 2 with the main body 1; in order to facilitate the arrangement of the locking mechanism 3, a groove body 15 arranged along the vertical direction is arranged at the position, corresponding to the air outlet female end 13, on the main body 1; as shown in fig. 3, the outer edge of the outlet male end 22 has a locking groove 23, and the locking mechanism 3 normally acts in the locking groove 23 to achieve a locking action.
Specifically, the latch mechanism 3 includes a latch switch 31, a first return spring 32, a latch 33, and a second return spring 34.
As shown in fig. 4, the lock switch 31 includes a tab portion 312 provided in the vertical direction, and a pressing portion 311 provided in the horizontal direction; the inserting part 312 is provided with an inserting hole 313 opposite to the air outlet female end 13, the lower edge of the inserting hole 313 is provided with a limiting groove 315, and the lower edges of the inserting holes 313 at the two ends of the limiting groove 315 are locking parts 314; since the lock switch 31 is required to move up and down, guide rails 151 for limiting and guiding the insertion pieces 312 are provided at both ends of the slot body 15.
As shown in fig. 5, the axis of the first return spring 32 is arranged along the vertical direction, and the upper end thereof is connected to the pressing portion 311 of the locking switch 31, so that the locking portion 314 is normally driven to be locked in the locking groove 23, that is: the locking switch 31 can move upwards under the action of the elastic force of the first return spring 32, so that the locking part 314 is clamped in the locking groove 23, and the working position of the locking switch 31 at the moment is set as a locking working position, specifically as shown in fig. 6; the lock switch 31 can be moved downward by an external force (manually pressed downward), so that the locking portion 314 is disengaged from the locking groove 23, and the working position of the lock switch 31 is set to be the open working position, as shown in fig. 7.
As shown in fig. 5 and 6, the bayonet 33 is arranged in the horizontal direction, the outer end portion has a first outer edge surface 331 and a second outer edge surface 332, and the outer diameter of the first outer edge surface 331 is smaller than that of the second outer edge surface 332; when the locking switch 31 is in the locking station state, the first outer edge surface 331 is in the limiting groove 315, and the limiting of the locking switch 31 at this time has three implementation modes: firstly, the top end of the locking part 314 abuts against the locking groove 23, and the first outer edge surface 331 does not abut against the lower end of the limiting groove 315; secondly, the locking part 314 is positioned in the locking groove 23, but the locking part and the locking groove are not abutted, and the first outer edge surface 331 is abutted against the lower end of the limiting groove 315; thirdly, the top end of the locking part 314 abuts against the locking groove 23, and the first outer edge surface 331 abuts against the lower end of the limiting groove 315; in any of the above-described modes, the main body 1 and the adsorption tower assembly 2 can be locked and engaged as long as the locking portion 314 can enter the locking groove 23. As shown in fig. 7, when the latching switch 31 is in the open position, the second outer peripheral surface 332 of the latch 33 abuts against the limiting groove 315, so that the latching portion 314 is disengaged from the latching groove 23, thereby facilitating the subsequent insertion of the adsorption tower assembly 2.
As shown in fig. 5-7, the axis of the second return spring 34 is arranged along the horizontal direction and connected to the latch 33, so as to drive the second outer peripheral surface 332 of the latch 33 to abut against the limiting groove 315 in a normal state, and to separate the locking portion 314 from the locking groove 23, so as to limit the locking switch 31 in an open position state, so that the air outlet male end 22 can be directly inserted into the air outlet female end 13 when the main body 1 and the adsorption tower assembly 2 are assembled next time; when the adsorption tower assembly 2 is inserted again, the bayonet 33 is pushed to move inwards against the elastic force of the second return spring 34, the first outer edge surface 331 is positioned in the limiting groove 315 again, the limiting of the bayonet 33 on the locking switch 31 is released, and the locking part 314 enters the locking groove 23 again at this moment to realize self-locking; and when the locking switch 31 is in the locking station, the bayonet 33 is always pressed against the outer wall of the adsorption tower assembly 2 under the action of the second return spring 34, so that the adsorption tower assembly 2 and the main body 1 can be in a tensioning state.
As shown in fig. 4, a reed 5 arranged along the vertical direction is further arranged between the main body 1 and the adsorption tower assembly 2, the reed 5 is installed below the locking switch 31 and is of a convex arc-shaped structure, the upper end of the reed is fixed in the groove body 15 on the outer wall of the main body 1, the lower end of the reed can move under stress, and the convex outer end part of the reed is always abutted against the outer wall of the adsorption tower assembly 2 when the locking switch 31 is located at a locking station; when the locking switch 31 is switched from the locking station to the opening station, the elastic force is applied to the adsorption tower assembly 2, so that the adsorption tower assembly 2 is convenient to disassemble.
In combination with the above, the specific operation principle of the locking mechanism 3 and the spring 5 in the locked state and the open state of the main body 1 and the adsorption tower assembly 2 is as follows:
in the locked state, as shown in fig. 5 and 6:
the outer end face of the bayonet 33 is always abutted against the outer wall of the adsorption tower assembly 2, and in the process that the air outlet male end 22/the air inlet male end 24 are inserted into the air outlet female end 13/the air inlet female end 14 along the horizontal direction, the adsorption tower assembly 2 pushes the bayonet 33 to move inwards against the elastic action of the second return spring 34, so that the first outer edge face 331 is aligned with the limiting groove 315;
the locking switch 31 moves inwards due to the bayonet 33, the locking switch 31 moves upwards under the elastic force of the first return spring 32, so that the locking part 314 enters the locking groove 23, the locking of the air outlet male end 22 in the air outlet female end 13 is realized, and due to the matching of the sliding groove 21 between the main body 1 and the adsorption tower assembly 2 and the sliding rail 12, the connection between the adsorption tower assembly 2 and the main body 1 is further completed, but the connection between the two still belongs to clearance fit.
In the open state, as shown in fig. 7 (from the locked state to the open state, an artificial force is applied to the pressing portion 311):
a locking switch 31 which moves downwards due to the action of external force, so that the locking part 314 is separated from the locking groove 23, and the adsorption tower assembly 2 can be detached from the main body 1;
the bayonet pin 33 is ejected outwards under the action of the second reset spring 34 after the limiting groove 315 moves downwards, so that the second outer edge surface 332 is aligned with the limiting groove 315, and after the external force of the pressing part 311 is released, the second outer edge surface 332 is abutted against the lower end of the limiting groove 315, so that the locking switch 31 is limited, and the next assembly of the adsorption tower assembly 2 is facilitated;
the reed 5, after the locking portion 314 breaks away from with the locking groove 23, because of reed 5 itself possesses the bounce-back effect, and then pops out the adsorption tower subassembly 2, the in-process takes place the cooperation motion of spout 21 and slide rail 12, realizes the quick dismantlement of adsorption tower subassembly 2.
Based on the structure and the working principle of the locking mechanism 3, the execution action is realized when the air outlet male end 22 is matched with the air outlet female end 13, the air outlet male end 22 simultaneously executes two actions of butt joint and locking with the air outlet female end 13, and can realize automatic locking under the action of the first return spring 32; meanwhile, the force is applied to the pressing part 311, the adsorption tower assembly 2 automatically pops up under the rebounding action of the reed 5, and the disassembly is convenient.
As shown in fig. 1, the battery module 4 is installed below the main body 1, and a fastening structure is arranged between the battery module and the main body 1; as shown in fig. 8, the fastening structure includes a fastening groove 41 disposed at the lower end of the main body 1, a fastening protrusion 42 engaged with the fastening groove 41 is disposed at the end of the battery module 4, and the fastening protrusion 42 is disposed on a pressing member 43; under normal conditions, the clamping groove 41 is matched with the clamping protrusion 42 to realize the connection of the main body 1 and the battery module 4; when the battery module needs to be disassembled, the pressing piece 43 is applied with force, so that the clamping protrusions 42 move downwards and are separated from the clamping grooves 41, and the battery module 4 is disassembled from the lower part of the main body 1.
Example 2
Based on embodiment 1, in this embodiment, the structure of the adsorption tower assembly 2 is further designed, as shown in fig. 9 and 10, a first chamber and a second chamber are arranged in parallel inside the adsorption tower assembly 2, the upper ends of the first chamber and the second chamber are both air storage chambers 28, and the lower ends of the first chamber and the second chamber are both air inlet chambers 29; in the invention, only one air outlet female end 13 and one air outlet male end 22 matched with the air outlet female end are arranged, but the air storage cavities 28 are separated, so that a through cavity 281 communicated with the air outlet male end 22 is arranged between the air storage cavities 28 at the upper ends of the first cavity and the second cavity, a three-way air passage is formed between the air storage cavities and the air outlet male end 22, one path of oxygen is output outwards, and the other path of oxygen is used for purging nitrogen in the non-working cavity; and because the lower end of the adsorption tower assembly 2 is provided with two air inlet male ends 24 which are respectively and independently communicated with the air inlet cavity 29, air can be respectively supplied to the first cavity and the second cavity under the action of the control valve in the main body 1.
A material screening upper partition plate 25, a material screening 26 and a material screening lower partition plate 27 are respectively arranged in the first chamber and the second chamber; the sieve material 26 is mainly a molecular sieve raw material for adsorbing nitrogen, such as lithium-based, sodium-based, etc.; the screen material bottom separation plate 27 is fixedly arranged, the screen material top separation plate 25 is movably arranged and is pressed on the screen material 26, and the upper end face is pressed with a compression spring 210. Mainly along with the periodic cycle of adsorption and desorption, the gas pressure in the adsorption tower component 2 also changes periodically, and the gaps of the sieve materials 26 are easy to change under the action of the pressure, so that the friction between the sieve materials is promoted, and the inevitable pulverization phenomenon is generated, thereby reducing the whole volume; through setting up pressure spring 210 to compress tightly all the time on sieve material 26, effectively ensure adsorption tower subassembly 2's normal work.
In order to ensure the work of the adsorption tower assembly 2, a reversing valve controlled by a time sequence is arranged in the main body 1, and compressed air can be respectively provided for the first cavity and the second cavity according to a periodic rule; wherein, the chamber for supplying gas is a working chamber, nitrogen is adsorbed by the sieve material, and oxygen is discharged; and the chamber without gas supply is a blow-washing chamber, and the adsorbed nitrogen is analyzed and discharged to prepare for next nitrogen and oxygen absorption.
In addition, in a common pressure swing adsorption oxygen generation system, because an internal double-cavity structure controls air supply according to time sequence and the system pressure is changed and is not a stable pressure source, an air storage tank or a buffer tank is arranged to ensure the stability of flow output; in addition, under different working pressures, the oxygen generation efficiency of the adsorption tower assembly is different, so that the oxygen concentration generated at different time points in a single working time sequence is different, and the existence of the gas storage tank/the buffer tank also has the oxygen mixing function, thereby ensuring the consistency of the oxygen concentration output. The size of the gas storage tank/buffer tank is at least equal to the volume corresponding to the oxygen generated by the single recommended work sequence of the machine; for example, for a 5L oxygen generator, the single working time of the adsorption tower is 6S, the designed system pressure is 100KPa, and the volume size in the gas storage tank/buffer tank is > 0.1MPa (5L/(6S/60S))/(0.1MPa) + 0.1MPa) =0.25L=250ML. Therefore, in the conventional structure, the air storage/buffer tank having a certain internal volume must be disposed in the structure of the main body 1; in the invention, the gas storage cavity 28 is arranged above the adsorption tower assembly 2 and serves as a gas storage buffer tank, and a gas storage tank structure is not required to be arranged on the main body 1, so that reasonable layout among structures can be realized, the structure volume is reduced, and the portable requirement is met.
With reference to embodiments 1 and 2, when the locking mechanism 3 acts on the male gas outlet end 22 and the female gas outlet end 13 to cooperate, since the conventional adsorption tower assembly 2 has two male gas outlet ends 22 and two female gas outlet ends 13 which cooperate with each other, it is inconvenient to reasonably arrange the locking mechanism 3 on the basis of the conventional structure, and thus a single male gas outlet end 22 and a single female gas outlet end 13 are designed; however, in order to ensure the working reasonability of the adsorption tower assembly 2, a three-way gas path is designed, one path of the three-way gas path outputs oxygen outwards, the other path of the three-way gas path is used for purging nitrogen in a non-working chamber, a transition of arrangement of the three-way gas path is realized by additionally arranging the gas storage cavity 28, and the gas storage cavity 28 meets the layout reasonability of the whole structure again.
Example 3
The present embodiment is different from embodiment 1 in that: layout of the main body 1, the adsorption tower assembly 2, and the battery module 4; as shown in fig. 11, in the present embodiment, the body 1 is an l-l type structure, a connection seat 10 extends downward in a vertical direction, and the adsorption tower assembly 2 is installed at the right side of the connection seat 10 and attached to the body 1, taking the direction shown in the figure as an example; the battery module 4 is installed on the left side of the connecting seat 10 below the main body 1 and is connected with the main body 1 through a buckling structure.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. A portable oxygen generator, comprising:
a main body having an air outlet female end and an air inlet female end;
the adsorption tower assembly is provided with a gas outlet male end and a gas inlet male end, and is respectively matched with the gas outlet female end and the gas inlet female end; the outer edge of the male end of the air outlet is provided with a locking groove;
the locking mechanism is arranged between the main body and the adsorption tower assembly, is arranged on the main body, is matched with the air outlet male end, locks the air outlet male end in the air outlet female end and realizes the locking of the adsorption tower assembly and the main body; the locking mechanism acts in the locking groove under a normal state, and comprises a locking switch, a first return spring, a clamping pin and a second return spring; the locking switch is clamped in the locking groove under the action of the first reset spring, is separated from the locking groove under the action of external force, and sequentially and correspondingly comprises a locking station and an opening station; the locking switch is limited by the clamping pin under the action of the second return spring in a station opening state, the male end of the air outlet is directly inserted into the female end of the air outlet, and the limitation is released along with the insertion of the male end of the air outlet;
in the locking mechanism, the locking switch is provided with a socket opposite to the female end of the air outlet, the lower edge of the socket is provided with a limiting groove, and the lower edges of the sockets at the two ends of the limiting groove are locking parts;
the first return spring is connected with the locking switch to drive the locking part to be clamped in the locking groove in a normal state;
the clamping pins are arranged along the horizontal direction, and the end parts of the clamping pins are inserted into the limiting grooves; the outer end part of the clamping pin is provided with a first outer edge surface and a second outer edge surface, and the outer diameter of the first outer edge surface is smaller than that of the second outer edge surface; when the locking switch is in an open station state, the second outer edge surface of the bayonet lock is abutted against the limiting groove;
and the second reset spring is connected with the clamping pin, so that the outer wall of the clamping pin is driven to abut against the limiting groove in a normal state, and the locking part is separated from the locking groove.
2. The portable oxygen generator of claim 1, wherein: a reed is arranged between the main body and the adsorption tower assembly, is fixed on the outer wall of the main body and is always abutted against the outer wall of the adsorption tower assembly when the locking switch is positioned at a locking station; and when the locking switch is switched from the locking station to the opening station, applying elastic force to the adsorption tower assembly.
3. The portable oxygen generator of claim 1, wherein: the locking mechanism is characterized in that the gas outlet female end and the gas outlet male end are both provided with one, the gas inlet female end and the gas inlet male end are both provided with two, and the locking mechanism corresponds to the gas outlet female end and the gas outlet male end which are mutually matched.
4. A portable oxygen generator as claimed in claim 3, wherein: the adsorption tower assembly is internally provided with a first cavity and a second cavity, the upper ends of the first cavity and the second cavity are both air storage cavities, and the lower ends of the first cavity and the second cavity are both air inlet cavities; the first chamber and the second chamber are respectively provided with a material screening upper separation plate, a material screening lower separation plate;
a through cavity communicated with the male end of the air outlet is arranged between the first cavity and the air storage cavity at the upper end of the second cavity, and a three-way air passage is formed between the through cavity and the male end of the air outlet;
and the air inlet cavities at the lower ends of the first cavity and the second cavity are respectively and independently communicated with the male ends of the two air inlets.
5. A portable oxygen generator according to claim 4, wherein: the sieve material bottom separation plate is fixedly arranged, the sieve material top separation plate is movably arranged and is arranged on the sieve material in a pressing mode, and a compression spring is arranged on the upper end face of the sieve material top separation plate in a pressing mode.
6. A portable oxygen generator according to any one of claims 3 to 5, wherein: a battery module is further mounted below the main body, and a buckle structure is arranged between the battery module and the main body;
the buckle structure comprises a clamping groove arranged at the end part below the main body, the end part of the battery module is provided with a clamping protrusion matched with the clamping groove, and the clamping protrusion is arranged on a pressing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211007657.1A CN115069064B (en) | 2022-08-22 | 2022-08-22 | Portable oxygen generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211007657.1A CN115069064B (en) | 2022-08-22 | 2022-08-22 | Portable oxygen generator |
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| CN115069064A CN115069064A (en) | 2022-09-20 |
| CN115069064B true CN115069064B (en) | 2023-01-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210133888U (en) * | 2019-05-23 | 2020-03-10 | 江苏富林医疗设备有限公司 | Oxygen generator with detachable molecular sieve barrel |
| CN210250381U (en) * | 2019-06-03 | 2020-04-07 | 青海绿氧健康管理有限公司 | Soft oxygen cabin |
| CN111170279A (en) * | 2019-05-20 | 2020-05-19 | 上海海尔医疗科技有限公司 | Novel oxygenerator |
| CN212532304U (en) * | 2020-05-03 | 2021-02-12 | 杭州莱纳斯工业设备有限公司 | Adsorption tower of nitrogen making machine |
| CN215233166U (en) * | 2021-07-28 | 2021-12-21 | 山东美迪宇能医疗科技股份有限公司 | Integrated adsorber and oxygenerator |
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2022
- 2022-08-22 CN CN202211007657.1A patent/CN115069064B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170279A (en) * | 2019-05-20 | 2020-05-19 | 上海海尔医疗科技有限公司 | Novel oxygenerator |
| CN210133888U (en) * | 2019-05-23 | 2020-03-10 | 江苏富林医疗设备有限公司 | Oxygen generator with detachable molecular sieve barrel |
| CN210250381U (en) * | 2019-06-03 | 2020-04-07 | 青海绿氧健康管理有限公司 | Soft oxygen cabin |
| CN212532304U (en) * | 2020-05-03 | 2021-02-12 | 杭州莱纳斯工业设备有限公司 | Adsorption tower of nitrogen making machine |
| CN215233166U (en) * | 2021-07-28 | 2021-12-21 | 山东美迪宇能医疗科技股份有限公司 | Integrated adsorber and oxygenerator |
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| CN115069064A (en) | 2022-09-20 |
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Denomination of invention: A portable oxygen concentrator Effective date of registration: 20230517 Granted publication date: 20230103 Pledgee: Bank of Jiangsu Co.,Ltd. Suzhou Branch Pledgor: CARER MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2023980040883 |
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