CN220194431U - Structure convenient for replacing molecular sieve in oxygenerator - Google Patents

Abstract

The utility model discloses a structure convenient for replacing a molecular sieve in an oxygenerator, which comprises a molecular sieve tower shell, wherein a molecular sieve bin is arranged at the lower part of the inner wall of the molecular sieve tower shell, a molecular sieve filter screen hopper is arranged at the bottom end of the molecular sieve bin, a molecular sieve discharge pipe is arranged at the bottom end of the molecular sieve filter screen hopper, and a molecular sieve discharge valve is arranged at one end of the molecular sieve discharge pipe penetrating out of the molecular sieve tower shell; the open end of molecular sieve storehouse is provided with molecular sieve storehouse shrouding, and the top of molecular sieve storehouse shrouding is provided with agitator motor, and agitator motor's rotor shaft is connected with molecular sieve storehouse puddler, and the both sides of molecular sieve storehouse puddler all are provided with molecular sieve storehouse crushing rod. The stirring motor is started through the molecular sieve tower control panel to drive the molecular sieve bin stirring rod and the molecular sieve bin crushing rod to rotate, and the crushed molecular sieve is discharged from the molecular sieve discharge pipe by opening the molecular sieve discharge valve, so that the replacement operation of the molecular sieve is completed, and the operation is more convenient and quicker.

Description

Structure convenient for replacing molecular sieve in oxygenerator

Technical Field

The utility model relates to the technical field of molecular sieve replacement of an oxygenerator, in particular to a structure convenient for replacing a molecular sieve in the oxygenerator.

Background

The molecular sieve oxygenerator is a device for obtaining oxygen by a physical adsorption method, and adopts zeolite to separate oxygen in air from nitrogen and filter out harmful substances in air, so as to obtain high-purity oxygen. Specifically, after air is pressurized by an air compressor, solid impurities such as oil, dust and the like and water are removed through an air pretreatment device and cooled to normal temperature, the treated compressed gas enters a molecular sieve tower, nitrogen is adsorbed by zeolite in the molecular sieve tower, and oxygen enters an oxygen tank through an air outlet. When the nitrogen adsorption in the molecular sieve tower reaches saturation, the pressure in the molecular sieve tower is reduced, the nitrogen adsorption capacity of the zeolite is reduced, and the nitrogen is released from the molecular sieve tower.

In the prior art, most molecular sieve towers are independently installed and are connected with an oxygen storage device through pipelines, and the defects of complex pipelines and inconvenient installation exist.

The Chinese patent with publication number CN217188708U discloses a molecular sieve device of an oxygen generator, which is characterized by comprising an air storage tank, a bottom plate, a first molecular sieve tower and a second molecular sieve tower; the air storage tank is arranged between the first molecular sieve tower and the second molecular sieve tower; the bottom plate is arranged below the air storage tank, the first molecular sieve tower and the second molecular sieve tower; a first channel and a second channel are arranged in the bottom plate, and the first channel is connected with the first molecular sieve tower and the gas storage tank and is used for conveying gas in the first molecular sieve tower to the gas storage tank; the second channel is connected with the second molecular sieve tower and the gas storage tank and is used for conveying the gas in the second molecular sieve tower to the gas storage tank.

The above patent is directed to a method of disposing a gas storage tank between a first molecular sieve column and a second molecular sieve column. The bottom plate sets up in the below of gas holder, first molecular sieve tower and second molecular sieve tower. The inside of bottom plate is equipped with first passageway and second passageway, and first passageway connects first molecular sieve tower and gas holder for make the gas in the first molecular sieve tower carry to the gas holder. The second channel is connected with the second molecular sieve tower and the gas storage tank and is used for conveying the gas in the second molecular sieve tower to the gas storage tank. Compared with the prior art, the molecular sieve device of the oxygenerator has the characteristics of small volume, compact and simple structure and high oxygen production efficiency.

However, the above scheme has the following disadvantages:

because the adsorption materials, such as zeolite, inside the first molecular sieve tower and the second molecular sieve tower have reduced adsorption capacity for a while, the adsorption materials need to be replaced for a while, and the existing molecular sieve tower finds that the adsorption materials are hardened when the adsorption materials are replaced, and the adsorption materials can be replaced only by disassembling the molecular sieve tower, so that the replacement of the adsorption materials is very inconvenient.

Disclosure of Invention

For this reason, it is required to provide a structure that facilitates replacement of the molecular sieve in the oxygenerator, so as to solve the problems set forth in the background art described above.

In order to achieve the above purpose, the utility model provides a structure for conveniently replacing a molecular sieve in an oxygenerator, which comprises a molecular sieve tower shell, wherein a molecular sieve bin is arranged at the lower part of the inner wall of the molecular sieve tower shell, a molecular sieve filter screen hopper is arranged at the bottom end of the molecular sieve bin, a molecular sieve discharge pipe is arranged at the bottom end of the molecular sieve filter screen hopper, and a molecular sieve discharge valve is arranged at one end of the molecular sieve discharge pipe penetrating out of the molecular sieve tower shell;

the molecular sieve bin is characterized in that a molecular sieve bin sealing plate is arranged at the open end of the molecular sieve bin, a stirring motor is arranged at the top end of the molecular sieve bin sealing plate, a rotor shaft of the stirring motor is connected with a molecular sieve bin stirring rod, and molecular sieve bin crushing rods are arranged at two sides of the molecular sieve bin stirring rod;

and a closed control mechanism for pushing the molecular sieve bin sealing plate is also arranged in the molecular sieve tower shell.

Preferably, the closed control mechanism is in including setting up the regulation slide rail mounting bracket on molecular sieve storehouse shrouding top, the top of adjusting the slide rail mounting bracket is provided with the regulation slide rail, the both sides of adjusting the slide rail all overlap and are equipped with the regulation sliding sleeve, the top rotation of adjusting the sliding sleeve is connected with the regulation crossbar, the inner wall top of molecular sieve tower casing is provided with control motor equipment frame.

Preferably, the closed control mechanism further comprises a control motor arranged on one side of the control motor equipment frame, a rotor shaft of the control motor is connected with a bidirectional screw, two ends of the bidirectional screw are connected with screw sleeves in a threaded manner, and the extending ends of the adjusting cross bars are rotationally connected with the screw sleeves on two sides.

Preferably, the closed control mechanism further comprises limiting sliding blocks arranged on two sides of the adjusting sliding rail mounting frame, limiting sliding grooves are formed in two sides of the inner wall of the molecular sieve tower shell, and the limiting sliding blocks are respectively inserted into the limiting sliding grooves on two sides.

Preferably, the closed control mechanism further comprises an installation groove arranged on one side of the top end of the molecular sieve bin, and an infrared sensor for sensing the position of the sealing plate of the molecular sieve bin is arranged at the bottom end of the installation groove.

Preferably, an air inlet box is arranged on one side of the outer wall of the molecular sieve tower shell, and an air inlet mechanism for sucking air is arranged in the air inlet box.

Preferably, the air inlet mechanism comprises an air flow air collecting hopper arranged on one side of the inner wall of the air inlet box, an air outlet end of the air flow air collecting hopper is communicated with the molecular sieve tower shell through an air inlet pipe, a negative pressure fan is arranged in the air flow air collecting hopper, and a dust filter screen plate is arranged on one side of the inner wall of the air inlet box.

Preferably, a feeding pipe is arranged on one side of the upper part of the molecular sieve tower shell, and the extending end of the feeding pipe is in threaded connection with a sealing cover.

Preferably, an air outlet pipe is arranged at one side of the lower part of the molecular sieve tower shell.

Preferably, the bottom end of the molecular sieve tower shell is also provided with a molecular sieve tower shell supporting base.

Preferably, one surface of the molecular sieve tower shell is provided with a molecular sieve tower control panel.

Compared with the prior art, the beneficial effects of the technical scheme are as follows:

when the molecular sieve is required to be replaced, a forward switch of a control motor is started through a molecular sieve tower control panel, the control motor drives a bidirectional screw rod to rotate clockwise, two wire sleeves are driven to move in opposite directions on the bidirectional screw rod, an adjusting sliding sleeve is driven to slide on an adjusting sliding rail through an adjusting cross rod, a limiting sliding block and a limiting sliding groove are driven to slide, an adjusting sliding rail mounting frame, a stirring motor and a molecular sieve bin sealing plate are pushed downwards, an infrared sensor senses that the molecular sieve bin sealing plate seals the open end of a molecular sieve bin, then the control motor is closed, then the molecular sieve tower control panel starts the stirring motor to drive a molecular sieve bin stirring rod and a molecular sieve bin crushing rod to crush and stir the hardened molecular sieve in the molecular sieve bin, the stirring motor is closed after stirring for minutes, and then the crushed molecular sieve is discharged from a molecular sieve discharging pipe through opening a molecular sieve discharging valve.

After the waste is discharged, the molecular sieve discharging valve is closed, the reverse switch of the control motor is started through the molecular sieve tower control panel, the control motor drives the bidirectional screw rod to rotate anticlockwise, the two wire sleeves are driven to do separation movement on the bidirectional screw rod, the adjusting sliding sleeve is driven to slide on the adjusting sliding rail through the adjusting cross rod, the limiting sliding block and the limiting sliding groove are driven to slide, the adjusting sliding rail mounting frame and the molecular sieve bin sealing plate are pulled upwards, the molecular sieve bin sealing plate exposes the opening end of the molecular sieve bin, the infrared sensor senses that the molecular sieve bin sealing plate is reset, then a new molecular sieve is manually poured into the molecular sieve bin through the feeding pipe until the molecular sieve is filled in the molecular sieve bin, and then the replacement operation of the molecular sieve is completed, so that the operation is more convenient and quick.

According to the utility model, the molecular sieve bin sealing plate is stretched to a position higher than the air inlet pipe, so that the molecular sieve bin sealing plate can not block the air inlet pipe, the negative pressure fan is started by closing the molecular sieve tower control panel, the negative pressure fan pumps air flow into the air inlet box, the dust filtering net plate filters dust in the air flow, impurities in the air flow are absorbed and filtered through the molecular sieve after being collected into the molecular sieve tower shell through the air inlet pipe, and then are discharged through the air outlet pipe, so that the impurity filtering operation of the air is completed.

Drawings

FIG. 1 is a schematic view of a molecular sieve in an oxygenerator according to the present utility model;

FIG. 2 is a schematic view of a cross-sectional structure of a molecular sieve in an oxygenerator according to the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 2 a in accordance with the present utility model;

FIG. 4 is an enlarged schematic view of the utility model at b of FIG. 2;

FIG. 5 is an enlarged schematic view of the utility model at c of FIG. 2;

FIG. 6 is a schematic diagram of the internal structure of a molecular sieve cartridge according to the present utility model.

Reference numerals illustrate:

1. a molecular sieve tower shell; 2. a molecular sieve bin; 3. a molecular sieve filter screen bucket; 4. a molecular sieve discharge pipe; 5. a molecular sieve discharge valve; 6. closing a molecular sieve bin; 7. a stirring motor; 8. molecular sieve bin stirring rod; 9. crushing the rod of the molecular sieve bin; 10. adjusting a sliding rail mounting frame; 11. adjusting the sliding rail; 12. adjusting the sliding sleeve; 13. adjusting the cross bar; 14. controlling a motor equipment rack; 15. controlling a motor; 16. a bidirectional screw rod; 17. a silk sleeve; 18. a limit sliding block; 19. limiting sliding grooves; 20. an air inlet box; 21. an airflow gas collecting hopper; 22. an air inlet pipe; 23. a negative pressure fan; 24. a dust filter screen; 25. a feed pipe; 26. sealing cover; 27. an air outlet pipe; 28. a molecular sieve tower shell supporting base; 29. a molecular sieve tower control panel; 30. a mounting groove; 31. an infrared sensor.

Detailed Description

In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in the embodiments may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the description of specific embodiments only and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that there may be three relationships, e.g., a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this application is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of the "examination guideline," the expressions "greater than", "less than", "exceeding", and the like are understood to exclude the present number in this application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of groups", "a plurality of" and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as terms of orientation or positional relationship based on the specific embodiments or figures, and are merely for convenience of description of the specific embodiments of the present application or ease of understanding of the reader, and do not indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation, and therefore are not to be construed as limiting of the embodiments of the present application.

Unless specifically stated or limited otherwise, in the description of the embodiments of the present application, the terms "mounted," "connected," "affixed," "disposed," and the like are to be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to the specific circumstances.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a structure convenient to change molecular sieve in oxygenerator, including molecular sieve tower casing 1, the upper portion left side of molecular sieve tower casing 1 is through welding installation inlet pipe 25, the extension end of inlet pipe 25 is equipped with the external screw thread, the sealed lid 26 inner wall is equipped with the internal screw thread, screw through the external screw thread threaded connection internal screw thread on inlet pipe 25, sealed lid 26 is screwed on inlet pipe 25, the lower part left side of molecular sieve tower casing 1 is through welding installation outlet duct 27, the bottom of molecular sieve tower casing 1 is still through bolt fixed mounting has molecular sieve tower casing supporting base 28, molecular sieve tower control panel 29 is through bolt fixed mounting in the front of molecular sieve tower casing 1, molecular sieve tower control panel 29's model is Siemens 802D, molecular sieve tower control panel 29's input passes through the wire connection power;

the molecular sieve tower comprises a molecular sieve tower shell 1, a molecular sieve filter screen hopper 3, a molecular sieve discharge pipe 4, a molecular sieve discharge valve 5 and a molecular sieve valve, wherein the molecular sieve hopper 2 is fixedly arranged at the lower part of the inner wall of the molecular sieve tower shell 1 through bolts, the molecular sieve filter screen hopper 3 is fixedly arranged at the bottom end of the molecular sieve filter screen hopper 3 through bolts, the mesh diameter of the molecular sieve filter screen hopper 3 is 0.5mm, and the molecular sieve discharge pipe 4 penetrates through one end of the molecular sieve tower shell 1 and is fixedly provided with the molecular sieve discharge valve 5 through a flange;

the molecular sieve bin is characterized in that a molecular sieve bin sealing plate 6 is fixedly arranged at the opening end of the molecular sieve bin 2 through bolts, the molecular sieve bin sealing plate 6 is of a circular plate structure, the diameter of the molecular sieve bin sealing plate 6 is larger than the inner diameter of the molecular sieve bin 2, a stirring motor 7 is fixedly arranged at the top end of the molecular sieve bin sealing plate 6 through bolts, the stirring motor 7 is of a model YE2-112M-4, the input end of the stirring motor 7 is connected with the control end of a molecular sieve tower control panel 29 through an electric wire, a rotor shaft key of the stirring motor 7 is connected with a molecular sieve bin stirring rod 8, and molecular sieve bin crushing rods 9 are fixedly arranged at the left side and the right side of the molecular sieve bin stirring rod 8 through bolts;

the molecular sieve tower shell 1 is internally provided with a closed control mechanism for pushing the molecular sieve bin sealing plate 6 through bolts, the closed control mechanism comprises an adjusting slide rail mounting frame 10 fixedly arranged at the top end of the molecular sieve bin sealing plate 6 through bolts, the top end of the adjusting slide rail mounting frame 10 is fixedly provided with an adjusting slide rail 11 through bolts, the left side and the right side of the adjusting slide rail 11 are respectively sleeved with an adjusting slide sleeve 12, the top end of the adjusting slide sleeve 12 is rotationally connected with an adjusting cross rod 13, and the top end of the inner wall of the molecular sieve tower shell 1 is fixedly provided with a control motor equipment frame 14 through bolts;

the closed control mechanism further comprises a control motor 15 fixedly arranged on the left side of the control motor equipment rack 14 through bolts, the model of the control motor 15 is YE2-112M-4, the input end of the control motor 15 is connected with the control end of the molecular sieve tower control panel 29 through an electric wire, the rotor shaft key of the control motor 15 is connected with a bidirectional screw 16, the positive thread end and the reverse thread end of the bidirectional screw 16 are both in threaded connection with screw sleeves 17, and the extending end of the regulating cross rod 13 is in rotary connection with the screw sleeves 17 on the left side and the right side;

the closed control mechanism further comprises limit sliding blocks 18 fixedly arranged on the left side and the right side of the adjusting slide rail mounting frame 10 through bolts, limit sliding grooves 19 are formed in the left side and the right side of the inner wall of the molecular sieve tower shell 1, and the limit sliding blocks 18 on the left side and the right side are respectively inserted into the limit sliding grooves 19 on the left side and the right side;

the closed control mechanism further comprises an installation groove 30 arranged on the left side of the top end of the molecular sieve bin 2, an infrared sensor 31 for sensing the position of the molecular sieve bin sealing plate 6 is fixedly arranged at the bottom end of the installation groove 30 through bolts, the model of the infrared sensor 31 is ST4Z-T10N, the input end of the infrared sensor 31 is connected with the control end of the molecular sieve tower control panel 29 through an electric wire, and the information output end of the infrared sensor 31 is connected with the information input end of the molecular sieve tower control panel 29 through a signal wire;

the molecular sieve tower casing 1's outer wall left side is through bolt fixed mounting there being air inlet box 20, there is the air inlet mechanism who is used for the suction air through bolt fixed mounting in the air inlet box 20, air inlet mechanism includes through bolt fixed mounting at the left air current gas-collecting channel 21 of air inlet box 20 inner wall, the end of giving vent to anger of air current gas-collecting channel 21 communicates with molecular sieve tower casing 1 through intake pipe 22, there is negative pressure fan 23 through bolt fixed mounting in the air current gas-collecting channel 21, negative pressure fan 23's model is TB125-3, negative pressure fan 23's input passes through the control end of wire connection molecular sieve tower control panel 29, the inner wall right side of air inlet box 20 is through bolt fixed mounting dust filter screen 24, dust filter screen 24's mesh diameter is 5mm.

The working principle of this embodiment is as follows: when the molecular sieve needs to be replaced, a forward switch of a control motor 15 is started through a molecular sieve tower control panel 29, the control motor 15 drives a bidirectional screw rod 16 to rotate clockwise, two wire sleeves 17 are driven to move in opposite directions on the bidirectional screw rod 16, an adjusting sliding sleeve 12 is driven to slide on an adjusting sliding rail 11 through an adjusting cross rod 13, a limiting sliding block 18 and a limiting sliding groove 19 are driven to slide, an adjusting sliding rail mounting frame 10, a stirring motor 7 and a molecular sieve bin sealing plate 6 are pushed downwards, an infrared sensor 31 senses that the molecular sieve bin sealing plate 6 seals the open end of a molecular sieve bin 2 and then the control motor 15 is closed, then the molecular sieve tower control panel 29 starts the stirring motor 7 to drive a molecular sieve bin stirring rod 8 and a molecular sieve bin crushing rod 9 to rotate, the molecular sieve bin crushing rod 9 is driven to crush and stir a hardened molecular sieve in the molecular sieve bin 2, the stirring motor 7 is closed after stirring for 10 minutes, and then a molecular sieve discharging valve 5 is opened to discharge the crushed molecular sieve from a molecular sieve discharging pipe 4;

after the waste is discharged, the molecular sieve discharge valve 5 is closed, a reverse switch of the control motor 15 is started through the molecular sieve tower control panel 29, the control motor 15 drives the bidirectional screw rod 16 to rotate anticlockwise, the two wire sleeves 17 are driven to move away from each other on the bidirectional screw rod 16, the adjusting sliding sleeve 12 is driven to slide on the adjusting sliding rail 11 through the adjusting cross rod 13, the limiting sliding block 18 and the limiting sliding groove 19 are driven to slide, the adjusting sliding rail mounting frame 10 and the molecular sieve bin sealing plate 6 are pulled upwards, the molecular sieve bin sealing plate 6 exposes the opening end of the molecular sieve bin 2, the infrared sensor 31 senses that the molecular sieve bin sealing plate 6 is reset, then a new molecular sieve is manually poured into the molecular sieve bin 2 through the feeding pipe 25 until the molecular sieve bin 2 is filled with the molecular sieve, and then the replacement operation of the molecular sieve is completed, so that the operation is more convenient and quick.

The molecular sieve bin sealing plate 6 is stretched to a position higher than the air inlet pipe 22, so that the molecular sieve bin sealing plate 6 can not block the air inlet pipe 22, the negative pressure fan 23 is started by the molecular sieve tower control panel 29, the negative pressure fan 23 pumps air flow into the air inlet box 20, the dust filtering net plate 24 filters dust in the air flow, impurities in the air flow are collected into the molecular sieve tower shell 1 through the air inlet pipe 22, adsorbed and filtered through the molecular sieve, and then discharged through the air outlet pipe 27, and the impurity filtering operation of the air is completed.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims (10)

1. A structure for facilitating replacement of a molecular sieve in an oxygenerator, comprising:

the molecular sieve tower comprises a molecular sieve tower shell (1), wherein a molecular sieve bin (2) is arranged at the lower part of the inner wall of the molecular sieve tower shell (1), a molecular sieve filter screen hopper (3) is arranged at the bottom end of the molecular sieve bin (2), a molecular sieve discharge pipe (4) is arranged at the bottom end of the molecular sieve filter screen hopper (3), and a molecular sieve discharge valve (5) is arranged at one end of the molecular sieve discharge pipe (4) penetrating out of the molecular sieve tower shell (1);

the molecular sieve bin comprises a molecular sieve bin body, and is characterized in that a molecular sieve bin sealing plate (6) is arranged at the open end of the molecular sieve bin body (2), a stirring motor (7) is arranged at the top end of the molecular sieve bin sealing plate (6), a rotor shaft of the stirring motor (7) is connected with a molecular sieve bin stirring rod (8), and molecular sieve bin crushing rods (9) are arranged at two sides of the molecular sieve bin stirring rod (8);

the molecular sieve tower shell (1) is also internally provided with a closed control mechanism for pushing the molecular sieve bin sealing plate (6).

2. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: the closed control mechanism comprises an adjusting slide rail mounting frame (10) arranged at the top end of a molecular sieve bin sealing plate (6), an adjusting slide rail (11) is arranged at the top end of the adjusting slide rail mounting frame (10), adjusting slide sleeves (12) are respectively sleeved on two sides of the adjusting slide rail (11), an adjusting cross rod (13) is connected to the top end of the adjusting slide sleeve (12) in a rotating mode, and a control motor equipment frame (14) is arranged at the top end of the inner wall of a molecular sieve tower shell (1).

3. A structure for facilitating replacement of molecular sieves in an oxygen generator as set forth in claim 2, wherein: the closed control mechanism further comprises a control motor (15) arranged on one side of the control motor equipment frame (14), a rotor shaft of the control motor (15) is connected with a bidirectional screw rod (16), two ends of the bidirectional screw rod (16) are connected with screw sleeves (17) in a threaded mode, and the extending ends of the adjusting cross rods (13) are connected with the screw sleeves (17) in a rotating mode.

4. A structure for facilitating replacement of molecular sieves in an oxygen generator as set forth in claim 2, wherein: the closed control mechanism further comprises limiting sliding blocks (18) arranged on two sides of the adjusting sliding rail mounting frame (10), limiting sliding grooves (19) are formed in two sides of the inner wall of the molecular sieve tower shell (1), and the limiting sliding blocks (18) on two sides are respectively inserted into the limiting sliding grooves (19).

5. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: the sealing control mechanism further comprises an installation groove (30) arranged on one side of the top end of the molecular sieve bin (2), and an infrared sensor (31) used for sensing the position of the closing plate (6) of the molecular sieve bin is arranged at the bottom end of the installation groove (30).

6. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: an air inlet box (20) is arranged on one side of the outer wall of the molecular sieve tower shell (1), and an air inlet mechanism for sucking air is arranged in the air inlet box (20).

7. The structure for facilitating replacement of molecular sieves in an oxygen generator as set forth in claim 6, wherein: the air inlet mechanism comprises an air flow air collecting hopper (21) arranged on one side of the inner wall of the air inlet box (20), an air outlet end of the air flow air collecting hopper (21) is communicated with the molecular sieve tower shell (1) through an air inlet pipe (22), a negative pressure fan (23) is arranged in the air flow air collecting hopper (21), and a dust filter screen plate (24) is arranged on one side of the inner wall of the air inlet box (20).

8. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: the molecular sieve tower is characterized in that a feeding pipe (25) is arranged on one side of the upper part of the molecular sieve tower shell (1), and a sealing cover (26) is connected with the extending end of the feeding pipe (25) in a threaded manner.

9. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: an air outlet pipe (27) is arranged on one side of the lower part of the molecular sieve tower shell (1), and a molecular sieve tower shell supporting base (28) is further arranged at the bottom end of the molecular sieve tower shell (1).

10. The structure for facilitating replacement of molecular sieves in an oxygen generator according to claim 1, wherein: one surface of the molecular sieve tower shell (1) is provided with a molecular sieve tower control panel (29).