Oxygen generator with molecular sieve capable of being rapidly replaced

Abstract

The invention discloses an oxygen generator with a rapidly replaceable molecular sieve, which comprises an oxygen generator shell and a side protection plate arranged at the front end of the oxygen generator shell, and further comprises an oxygen generator shell, triangular partition plates are arranged in a left end groove of the oxygen generator shell at equal intervals, and the left side of the inside of the oxygen generator shell is connected with a mounting shell; an oil-free air compressor is mounted on the lower side of the mounting shell, a flow valve is arranged on the right side of the oil-free air compressor, and the outer end of the flow valve is connected with a molecular sieve tank through a tubular structure. According to the oxygen generator with the molecular sieve capable of being rapidly replaced, the problems that although an existing oxygen generator can guarantee continuous work of the oxygen generator, when air enters the oxygen generator, the air entering speed is not convenient to increase while air is filtered, so that the oxygen generation efficiency is not convenient to increase, and during oxygen generation, the internal molecular sieve is not convenient to install and limit; and the connection stability of internal parts is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen generators, in particular to an oxygen generator with a rapidly replaceable molecular sieve. Background Art

[0002] Oxygen concentrator is a type of machine that produces oxygen. Its principle is to use air separation technology. The oxygen concentrator uses high-density compressed air and uses the different condensation points of various components in the air to separate gas and liquid at a specific temperature, and then separates oxygen and nitrogen through a distillation process. With the passage of time, oxygen production technology continues to develop. Modern oxygen concentrators are not only widely used in industry, but also have derived various types such as household and medical use to meet different needs, such as: Publication No. CN113389920A provides a solenoid valve for an oxygen concentrator and an oxygen concentrator. Since the valve core of the solenoid valve opens the connection between the exhaust channel and the exhaust port when the oxygen concentrator is in an operating state, and closes the connection between the exhaust channel and the exhaust port when the oxygen concentrator is in a non-operating state, the solenoid valve can prevent moisture in the air from invading the interior of the molecular sieve through the exhaust port and the exhaust channel when the oxygen concentrator is in a non-operating state without affecting the normal use of the oxygen concentrator, thereby preventing the molecular sieve from hygroscopic degradation and thus preventing the performance of the oxygen concentrator from decreasing. In addition, the molecular sieve replacement due to hygroscopic degradation of the molecular sieve can be avoided, and the use cost of the oxygen concentrator can be reduced.

[0003] Another example is a medical oxygen concentrator provided by announcement number CN110282604A, which includes an outer box, an air filter, two oxygen concentrators, a humidification bottle, a connecting device, a buffer device, a side panel, a mounting device, a mobile fixing device, a handheld device and a control panel, wherein a sound insulation layer is provided on the outer box, an air filter is provided on the upper end of the outer box through a connecting rod, the air filter is connected to the oxygen concentrator through a connecting device, the oxygen concentrator is installed at the bottom of the outer box through a buffer device, the oxygen concentrator is connected to the humidification bottle through a telescopic rod tube, a side panel is provided on one side of the outer box through a mounting device, a mobile fixing device is provided at the bottom of the outer box, and a handheld device is provided on one side of the upper end of the outer box. The present invention is provided with two oxygen concentrators, and can automatically enable the other oxygen concentrator when one of the oxygen concentrators fails, so as to ensure the continuous operation of the oxygen concentrator and prevent the patient from hypoxia due to the failure of the oxygen concentrator.

[0004] The above-mentioned prior art solutions have the following defects: 1. Although the existing oxygen generator can ensure the continuous operation of the oxygen generator, it is not convenient to filter the air while increasing the air entry speed when the air enters, thereby not being convenient to increase the oxygen production efficiency.

[0005] 2. When producing oxygen, it is not convenient to install and limit the internal molecular sieve to increase the stability of the connection of internal parts.

[0006] 3. At the same time, it is not convenient to achieve a buffering effect when the oxygen concentrator is replaced and placed. Therefore, the present invention provides an oxygen concentrator with a quickly replaceable molecular sieve to solve the above-mentioned problems. Summary of the invention

[0007] The object of the present invention is to provide an oxygen concentrator with a quickly replaceable molecular sieve, so as to solve the problem that the existing oxygen concentrator proposed in the above background technology can ensure the continuous operation of the oxygen concentrator, but when the air enters, it is not convenient to filter the air while increasing the air entry speed, thereby not being convenient to increase the oxygen production efficiency. When oxygen is being produced, the internal molecular sieve is not convenient to be installed and limited, thereby increasing the stability of the connection of internal parts.

[0008] 3. At the same time, it is not easy to achieve the buffering effect when the oxygen concentrator is replaced and placed.

[0009] To achieve the above object, the present invention provides the following technical solution: an oxygen concentrator with a molecular sieve that can be quickly replaced, comprising: an oxygen concentrator casing, and a side protection plate arranged at the front end of the oxygen concentrator casing, and also comprising: An oxygen concentrator casing, wherein triangular partitions are arranged at equal intervals in the left end groove of the oxygen concentrator casing, and a mounting shell is connected to the left side of the interior of the oxygen concentrator casing, an oil-free air compressor is installed on the lower side of the mounting shell, and a flow valve is arranged on the right side of the oil-free air compressor, and the outer end of the flow valve is connected to a molecular sieve tank through a tubular structure, and a load-bearing connecting plate is arranged on the outer side of the molecular sieve tank; A solenoid valve is arranged on the upper side of the flow valve and connected to the molecular sieve tank through a tubular structure, and a third connecting pipe is arranged at the front end of the solenoid valve, an oxygen storage tank is installed at the lower end of the third connecting pipe, and a fourth connecting pipe is arranged at the left end of the oxygen storage tank, and an oxygen outlet head is connected to the front end of the fourth connecting pipe; Arc-shaped plates, the four corners of the lower end of the oxygen concentrator casing are all provided with arc-shaped plates, and the inner part of the arc-shaped plates is rotatably connected with moving wheels.

[0010] As a preferred technical solution of the present invention, the mounting shell also includes a filter plate arranged inside the mounting shell, and a collecting bucket is installed at the right end of the mounting shell, and a first connecting pipe is connected to the right end of the collecting bucket, an air pump is installed at the lower end of the first connecting pipe, and a second connecting pipe connected to an oil-free air compressor is provided at the lower end of the air pump.

[0011] As a preferred technical solution of the present invention, the mounting shell and the filter plate are connected in a snap-fit ​​manner to facilitate disassembly and replacement, and the internal dimensions of the mounting shell match those of the collecting hopper, and the longitudinal section of the collecting hopper is a funnel-shaped structure.

[0012] As a preferred technical solution of the present invention, the bearing connecting plate also includes a rotatably connected connecting rod, the lower end of the molecular sieve tank is snap-connected with a connecting bearing block, the outer surface of the connecting rod is installed with a connecting cross plate, and the left and right sides of the inner end of the connecting cross plate are respectively provided with a first protective plate and a third protective plate, a limiting groove is opened inside the third protective plate, and a second protective plate is installed inside the limiting groove.

[0013] As a preferred technical solution of the present invention, the connecting cross plate also includes a second mounting column arranged on the left side of the inner end of the connecting cross plate, and a spring is installed inside the second mounting column, and a first mounting column is arranged at the right end of the spring.

[0014] As a preferred technical solution of the present invention, the first protective plate is connected to the third protective plate by sliding through the second protective plate, and the first protective plate and the third protective plate are respectively attached to the left and right sides of the outer end of the molecular sieve tank.

[0015] As a preferred technical solution of the present invention, the connecting cross plate and the connecting rod are connected by threads, and the connecting cross plate and the bearing connecting plate are connected for relative movement, and the connecting cross plates are arranged in pairs front and back correspondingly, and a single connecting cross plate and the bearing connecting plate are fixedly arranged.

[0016] As a preferred technical solution of the present invention, the first mounting post and the spring are arranged in a one-to-one correspondence on the left and right, and the spring is relatively engaged with the first mounting post and the second mounting post.

[0017] As a preferred technical solution of the present invention, a mounting side plate is snap-fitted on the outer side of the left end of the oxygen concentrator casing, and a first threaded rod is installed on the right end of the mounting side plate; a protective top plate is snap-fitted on the upper end of the oxygen concentrator casing, and a second threaded rod is installed on the right end of the protective top plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the oxygen concentrator with a molecular sieve that can be quickly replaced solves the problem that the existing oxygen concentrator can ensure the continuous operation of the oxygen concentrator, but when the air enters, it is not convenient to filter the air while increasing the air entry speed, thereby not being convenient to increase the oxygen production efficiency, and when oxygen is being produced, the internal molecular sieve is not convenient to be installed and limited, which increases the stability of the connection of internal parts; 1. Disengage the oxygen concentrator casing through the first threaded rod. The left end of the oxygen concentrator casing is provided with a mounting side plate, and the right end of the mounting side plate is provided with a first threaded rod. The upper end of the oxygen concentrator casing is provided with a protective top plate, and the right end of the protective top plate is provided with a second threaded rod. The first threaded rod is rotated to disengage the first threaded rod from the oxygen concentrator casing, so that the mounting side plate can be disengaged from the oxygen concentrator casing, which is convenient for disassembling the mounting side plate, so that the oxygen outlet head can be replaced to prevent the internal blockage of the oxygen outlet head from affecting the use effect. 2. The installation shell and the filter plate are connected by a snap-fitting manner to play the role of disassembly and replacement, and the size of the interior of the installation shell is consistent with the size of the interior of the collection bucket, and the longitudinal section of the collection bucket is a funnel-shaped structure. By starting the vacuum pump, the air passes through the through-hole triangular partition at the left end of the side protection plate to enter the interior of the installation shell, and is filtered by the filter plate after being set, and then enters the interior of the collection bucket. At this time, when the vacuum pump is started, the air in the collection bucket passes through the first connecting pipe, and the air can be quickly sucked into the collection bucket, thereby improving the oxygen production efficiency; 3. The first protective plate is connected to the second protective plate and the third protective plate in a sliding manner, and the first protective plate and the third protective plate are respectively attached to the left and right sides of the outer end of the molecular sieve tank, the connecting cross plate and the connecting rod are connected in a threaded manner, and the connecting cross plate and the load-bearing connecting plate are relatively movable and connected, and the connecting cross plates are arranged in pairs front and back, and a single connecting cross plate is fixedly arranged with the load-bearing connecting plate, the first mounting column and the spring are arranged in a one-to-one correspondence on the left and right, and the spring and the first mounting column and the second mounting column are relatively engaged, and the second threaded rod is rotated so that the second threaded rod is connected to the oxygen concentrator The casing is detached, and the protective top plate is detached from the upper end of the oxygen generator casing. Then the connecting rod is rotated to drive the belt to move, so that the connecting rod at the other end rotates accordingly. At this time, the connecting cross plate moves inside the bearing connecting plate. While moving, the first protective plate and the third protective plate move relative to each other, which will cause the second protective plate to slide inside the limiting groove, and the molecular sieve tank is detached from the connecting bearing block. At this time, the molecular sieve tank can be pulled out from the inner ends of the third protective plate and the first protective plate, and the molecular sieve tank and the connecting bearing block at its lower end are connected to facilitate the rapid replacement of the molecular sieve tank. Furthermore, the movement of the second protective plate inside the limiting groove can increase the stability of movement between parts. When the molecular sieve tank is placed into the inner ends of the first protective plate and the third protective plate, the connecting rod is rotated in the opposite direction to make the connecting cross plate and the load-bearing connecting plate slide while the spring is connected to the second mounting column and the first mounting column. The spring is compressed to protect the outer end of the molecular sieve tank and limit it, thereby achieving the effect of clamping and buffering, preventing damage to the molecular sieve tank caused by excessive squeezing. The practicability is enhanced and the service life of the molecular sieve tank is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the connection between the load-bearing connecting plate and the connecting rod of the present invention; Figure 3 It is a schematic diagram of the overall cross-sectional structure of the connection between the load-bearing connecting plate and the connecting rod of the present invention; Figure 4This is a schematic diagram of the overall explosion structure of the installation shell and the filter plate connected in the present invention; Figure 5 It is a schematic diagram of the overall exploded structure of the spring and the second mounting column connected to each other in the present invention; Figure 6 Invented for this invention Figure 2 The enlarged structural diagram at A in the middle; Figure 7 This is a schematic diagram of the overall structure of the protective top plate of the present invention after being taken away.

[0020] In the figure: 1, oxygen generator casing; 2, side protection plate; 3, triangular partition; 4, installation shell; 5, filter plate; 6, collecting bucket; 7, first connecting pipe; 8, vacuum pump; 9, second connecting pipe; 10, oil-free air compressor; 11, flow valve; 12, molecular sieve tank; 13, solenoid valve; 14, third connecting pipe; 15, load-bearing connecting plate; 16, connecting rod; 17, connecting bearing block; 18, oxygen storage tank; 19, fourth connecting pipe; 20, oxygen outlet; 21, connecting cross plate; 22, first protection plate; 23, second protection plate; 24, limit groove; 25, third protection plate; 26, first installation column; 27, spring; 28, second installation column; 29, installation side plate; 30, first threaded rod; 31, protective top plate; 32, second threaded rod; 33, moving wheel; 34, arc plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-7The present invention provides a technical solution: an oxygen concentrator with a molecular sieve that can be quickly replaced, comprising an oxygen concentrator casing 1, and an edge protection plate 2 arranged at the front end of the oxygen concentrator casing 1, and also comprising: the oxygen concentrator casing 1, triangular partitions 3 are arranged at equal intervals in the left end groove of the oxygen concentrator casing 1, and a mounting shell 4 is connected to the left side of the inner part of the oxygen concentrator casing 1, an oil-free air compressor 10 is installed on the lower side of the mounting shell 4, and a flow valve 11 is arranged on the right side of the oil-free air compressor 10, and the flow valve 11 The outer end of the molecular sieve tank 12 is connected to the molecular sieve tank 12 through a tubular structure, and a load-bearing connecting plate 15 is arranged on the outer side of the molecular sieve tank 12; the electromagnetic valve 13 is arranged on the upper side of the flow valve 11 and connected to the molecular sieve tank 12 through a tubular structure, and a third connecting pipe 14 is arranged at the front end of the electromagnetic valve 13, an oxygen storage tank 18 is installed at the lower end of the third connecting pipe 14, and a fourth connecting pipe 19 is arranged at the left end of the oxygen storage tank 18, and the front end of the fourth connecting pipe 19 is connected to the oxygen outlet head 20; the arc plate 34, the oxygen generator The four corners of the lower end of the casing 1 are all provided with arc plates 34, and the inner rotation of the arc plates 34 is connected with moving wheels 33. By pushing the oxygen generator casing 1, the moving wheels 33 are rotated inside the arc plates 34, so that the oxygen generator casing 1 is moved, which is convenient for placing the oxygen generator at will, saving time and effort. By rotating the first threaded rod 30, the first threaded rod 30 is separated from the oxygen generator casing 1. The outer side of the left end of the oxygen generator casing 1 is engaged with an installation side plate 29, and the installation side plate 29 is installed. A first threaded rod 30 is installed at the right end of the side panel 29, a protective top plate 31 is snap-fitted on the upper end of the oxygen generator casing 1, and a second threaded rod 32 is installed at the right end of the protective top plate 31. The first threaded rod 30 is rotated to disengage the first threaded rod 30 from the oxygen generator casing 1, so that the mounting side panel 29 can be disengaged from the oxygen generator casing 1, making it convenient to disassemble the mounting side panel 29, so that the oxygen outlet head 20 can be replaced to prevent internal blockage of the oxygen outlet head 20 and affect the use effect.

[0023] Specific as Figure 1 , Figure 3 and Figure 4In the embodiment, the installation shell 4 also includes a filter plate 5 arranged inside the installation shell 4. The filter plate 5 is pulled upward to separate the filter plate 5 from the installation shell 4, so as to facilitate the replacement of the filter plate 5. A collecting bucket 6 is installed at the right end of the installation shell 4, and the right end of the collecting bucket 6 is connected with a first connecting pipe 7. An air pump 8 is installed at the lower end of the first connecting pipe 7, and a second connecting pipe 9 connected to an oil-free air compressor 10 is provided at the lower end of the air pump 8. The installation shell 4 and the filter plate 5 are connected in a snap-fit ​​manner to play a role in disassembly and replacement, and the size of the interior of the installation shell 4 is consistent with the size of the interior of the collecting bucket 6, and the longitudinal section of the collecting bucket 6 is a funnel-shaped structure. By starting the air pump 8 , allowing air to enter the interior of the mounting shell 4 through the through-hole triangular partition 3 at the left end of the edge protection plate 2, and then enter the interior of the collecting bucket 6 after being set by the filter plate 5. At this time, when the air pump 8 is started, the air in the collecting bucket 6 passes through the first connecting pipe 7, and the air can be quickly sucked into the collecting bucket 6, thereby improving the oxygen production efficiency. At this time, the air enters the interior of the oil-free air compressor 10 through the second connecting pipe 9 to be compressed into nitrogen, and the nitrogen enters the interior of the solenoid valve 13, and then enters the oxygen storage tank 18 through the third connecting pipe 14. From the setting of the oxygen storage tank 18, it will enter the fourth connecting pipe 19 for oxygen transportation, thereby playing the role of oxygen production.

[0024] Specific as Figure 2 , Figure 5 , Figure 6 and Figure 7In the embodiment, the load-bearing connecting plate 15 also includes a connecting rod 16 that is rotatably connected, and the lower end of the molecular sieve tank 12 is snap-connected with a connecting bearing block 17. A connecting transverse plate 21 is installed on the outer surface of the connecting rod 16, and a first protective plate 22 and a third protective plate 25 are respectively arranged on the left and right sides of the inner end of the connecting transverse plate 21. A limiting groove 24 is provided inside the third protective plate 25, and a second protective plate 23 is installed inside the limiting groove 24. The connecting transverse plate 21 also includes a second mounting column 28 arranged on the left side of the inner end of the connecting transverse plate 21, and a spring 27 is installed inside the second mounting column 28. The right end of the spring 27 is provided with a first mounting column 26. The first protective plate 22 is connected to the second protective plate 23 through the second protective plate 23. The third protective plate 25 is connected in a sliding manner, and the first protective plate 22 and the third protective plate 25 are respectively attached to the left and right sides of the outer end of the molecular sieve tank 12, the connecting cross plate 21 and the connecting rod 16 are connected in a threaded manner, and the connecting cross plate 21 and the load-bearing connecting plate 15 are relatively movably connected, and the connecting cross plates 21 are arranged in pairs front and back, and a single connecting cross plate 21 is fixedly arranged with the load-bearing connecting plate 15, the first mounting column 26 and the spring 27 are arranged in a one-to-one correspondence with the left and right, and the spring 27 and the first mounting column 26 and the second mounting column 28 are relatively engaged, and the second threaded rod 32 is rotated to disengage the second threaded rod 32 from the oxygen generator casing 1, At this time, the protective top plate 31 is separated from the upper end of the oxygen generator casing 1, and then the connecting rod 16 is rotated to make the connecting rod 16 drive the belt to move, so that the connecting rod 16 at the other end rotates accordingly. At this time, the connecting cross plate 21 moves inside the bearing connecting plate 15. While moving, the first protective plate 22 and the third protective plate 25 move relative to each other, which will make the second protective plate 23 slide inside the limiting groove 24, and the molecular sieve tank 12 is separated from the connecting bearing block 17. At this time, the molecular sieve tank 12 can be pulled out from the inner ends of the third protective plate 25 and the first protective plate 22, and the molecular sieve tank 12 and the connecting bearing block 17 at its lower end are connected to facilitate the rapid removal of the molecular sieve tank 12. Replacement, at the same time, the movement of the second protective plate 23 inside the limiting groove 24 can increase the stability of movement between parts. When the molecular sieve tank 12 is placed into the inner ends of the first protective plate 22 and the third protective plate 25, the connecting rod 16 is rotated in the opposite direction to make the connecting cross plate 21 and the load-bearing connecting plate 15 slide while the spring 27 is connected to the second mounting column 28 and the first mounting column 26. The spring 27 is compressed to protect the outer end of the molecular sieve tank 12 and limit it to achieve the effect of clamping and buffering, thereby preventing the molecular sieve tank 12 from being damaged by excessive squeezing. The practicability is stronger and the service life of the molecular sieve tank 12 is increased. This is the use method of the oxygen generator with quickly replaceable molecular sieves.

[0025] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 should be included in the protection scope of the present invention.

Claims

1. An oxygen concentrator with rapidly replaceable molecular sieves, comprising: An oxygen concentrator casing (1), and an edge protection plate (2) arranged at the front end of the oxygen concentrator casing (1), characterized in that it also includes: An oxygen concentrator casing (1), wherein triangular partitions (3) are arranged at equal intervals in a groove at the left end of the oxygen concentrator casing (1), and a mounting shell (4) is connected to the left side of the interior of the oxygen concentrator casing (1), an oil-free air compressor (10) is installed on the lower side of the mounting shell (4), and a flow valve (11) is arranged on the right side of the oil-free air compressor (10), and the outer end of the flow valve (11) is connected to a molecular sieve tank (12) through a tubular structure, and a load-bearing connection plate (15) is arranged on the outer side of the molecular sieve tank (12); A solenoid valve (13) is arranged on the upper side of the flow valve (11) and connected to the molecular sieve tank (12) through a tubular structure, and a third connecting pipe (14) is arranged at the front end of the solenoid valve (13), an oxygen storage tank (18) is installed at the lower end of the third connecting pipe (14), and a fourth connecting pipe (19) is arranged at the left end of the oxygen storage tank (18), and the front end of the fourth connecting pipe (19) is connected to an oxygen outlet head (20); The arc-shaped plate (34) is provided at each of the four corners at the lower end of the oxygen generator housing (1), and the interior of the arc-shaped plate (34) is rotatably connected to a moving wheel (33).

2. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 1, characterized in that: The mounting shell (4) further comprises a filter plate (5) arranged inside the mounting shell (4), and a collecting hopper (6) is installed at the right end of the mounting shell (4), and a first connecting pipe (7) is provided at the right end of the collecting hopper (6), an air extraction pump (8) is installed at the lower end of the first connecting pipe (7), and a second connecting pipe (9) connected to an oil-free air compressor (10) is provided at the lower end of the air extraction pump (8).

3. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 2, characterized in that: The mounting shell (4) and the filter plate (5) are connected in a snap-fitting manner to facilitate disassembly and replacement, and the size of the interior of the mounting shell (4) matches the size of the interior of the collecting hopper (6), and the longitudinal section of the collecting hopper (6) is a funnel-shaped structure.

4. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 1, characterized in that: The bearing connection plate (15) further comprises a rotatably connected connecting rod (16), the lower end of the molecular sieve tank (12) is snap-connected with a connecting bearing block (17), a connecting transverse plate (21) is mounted on the outer surface of the connecting rod (16), and a first protective plate (22) and a third protective plate (25) are respectively arranged on the left and right sides of the inner end of the connecting transverse plate (21), a limiting groove (24) is provided inside the third protective plate (25), and a second protective plate (23) is mounted inside the limiting groove (24).

5. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 1, characterized in that: The connecting transverse plate (21) further comprises a second mounting column (28) arranged on the left side of the inner end of the connecting transverse plate (21), a spring (27) is installed inside the second mounting column (28), and the first mounting column (26) is arranged at the right end of the spring (27).

6. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 4, characterized in that: The first protective plate (22) is connected to the third protective plate (25) in a sliding manner via the second protective plate (23), and the first protective plate (22) and the third protective plate (25) are respectively attached to the left and right sides of the outer end of the molecular sieve tank (12).

7. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 4, characterized in that: The connecting transverse plate (21) and the connecting rod (16) are connected by means of threads, and the connecting transverse plate (21) and the bearing connecting plate (15) are connected in a relatively movable manner, and the connecting transverse plates (21) are arranged in pairs in a front-to-back correspondence, and a single connecting transverse plate (21) and the bearing connecting plate (15) are fixedly arranged.

8. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 5, characterized in that: The first mounting column (26) and the spring (27) are arranged in a one-to-one correspondence on the left and right, and the spring (27) is relatively engaged with the first mounting column (26) and the second mounting column (28).

9. The oxygen concentrator with rapidly replaceable molecular sieve according to claim 1, characterized in that: A mounting side plate (29) is provided on the outer side of the left end of the oxygen concentrator housing (1), and a first threaded rod (30) is installed on the right end of the mounting side plate (29); a protective top plate (31) is provided on the upper end of the oxygen concentrator housing (1), and a second threaded rod (32) is installed on the right end of the protective top plate (31).

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