An adsorption tower for preventing molecular sieve pulverization in medical oxygen concentrators

Abstract

The present invention discloses an adsorption tower for preventing molecular sieve from pulverizing in a medical oxygen concentrator, which belongs to the technical field of oxygen concentrators. The present invention comprises an adsorption tower shell, wherein two molecular sieve bed plates and a hollow column are provided inside the adsorption tower shell, spiral heating tubes are laid inside the hollow column and the side wall of the adsorption tower shell, and a pressing assembly, a temperature control assembly and a uniform pressure assembly are provided inside the adsorption tower shell. The present invention provides a pressing assembly and utilizes multiple pressing springs to push down multiple layers of pressing plates to firmly press the molecular sieve, thereby avoiding the pulverization phenomenon caused by the movement of the molecular sieve; by coordinating the spiral heating tube and the temperature control assembly, the molecular sieve can be heated and dehumidified to ensure the stability of its mechanical strength and enhance the anti-pulverization effect; by providing the uniform pressure assembly, the gas can be evenly dispersed to reduce its impact on the molecular sieve below, thereby further enhancing the anti-pulverization effect on the molecular sieve.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen concentrators, in particular to an adsorption tower for preventing molecular sieves from pulverizing in a medical oxygen concentrator. Background Art

[0002] A medical oxygen concentrator is a medical device that uses pressure swing adsorption and other technologies to extract oxygen from the air. It is suitable for oxygen therapy and health care in medical institutions and homes. The adsorption tower of the medical oxygen concentrator is filled with molecular sieves. The molecular sieves use physical adsorption and desorption technologies to adsorb nitrogen and carbon dioxide in the air. The unabsorbed oxygen will be collected and purified to obtain relatively high-purity oxygen for patients to use.

[0003] The existing technology has the following defects: First, when most adsorption towers are in use, the air flow usually passes through the interior of the adsorption tower from bottom to top. After long-term use, it is easy to cause the molecular sieve to become powdered, making the filtration and separation effect of the molecular sieve low, so that the adsorption tower is inconvenient to use; Second, in the initial operation stage of the adsorption tower, the instantaneous impact of the air acts on the molecular sieve, causing the particle structure inside the molecular sieve to become powdered. These powders will block the gas channel in the adsorption tower and hinder the normal flow of gas, which not only reduces the oxygen production efficiency, but also affects the oxygen production quality with the flow of air; In order to overcome the first defect, the existing The technology (application number: 202322655197.X, Chinese patent application date: 2023-09-28) discloses a gravity elastic compression adsorption tower for preventing pulverization of molecular sieves in an adsorption tower. By rotating the hand wheel, the bevel gear set rotates, and then the threaded rod rotates. The threaded rod continues to displace the push rod, so that the push rod can push the coconut shell mat, and the coconut shell mat can squeeze the molecular sieve body, so that the molecular sieve body can avoid pulverization after long-term use, which solves the above-mentioned defect one; in order to overcome the defect two, the prior art (application number: 20 2411746297.6, Chinese patent application date 2024-12-02) discloses an anti-molecular sieve pulverization oxygen production host adsorption tower, which installs a pressure divider plate inside the bottom cover through a reset mechanism. When air enters, it first pushes the pressure divider plate to move, reducing the intake shock, and then the air is diverted through multiple filter seats. This ensures that the diverted air acts evenly on the molecular sieve body, avoiding localized long-term impact and premature pulverization, and allows air to pass evenly through the molecular sieve body to achieve gas separation, thereby improving the quality and efficiency of oxygen production, and solving the second defect mentioned above; Although existing technology 1 and existing technology 2 can overcome the above-mentioned defects, during the actual use of the medical oxygen concentrator, if the molecular sieve is damp and absorbs water, its mechanical strength will decrease. At the same time, if the molecular sieve bed is not effectively compacted, the molecular sieve will move when the equipment is running. These two situations will also cause the molecular sieve to pulverize. However, the above two technical solutions can only suppress the molecular sieve pulverization caused by uneven air intake impact, but cannot prevent the molecular sieve from pulverizing due to other reasons, resulting in the molecular sieve's anti-pulverization effect not being comprehensive and strong enough.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we proposed an adsorption tower for preventing molecular sieve pulverization in medical oxygen generator, which can well solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide an adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator, so as to solve the problem raised in the above-mentioned background art that, during actual use of medical oxygen concentrators currently on the market, if the molecular sieve absorbs moisture due to moisture, its mechanical strength will decrease. At the same time, if the molecular sieve bed is not effectively compacted, the molecular sieve will move during operation of the equipment. Both of these situations will also cause molecular sieve pulverization. However, both of the above-mentioned technical solutions can only suppress molecular sieve pulverization caused by uneven intake impact, but cannot prevent molecular sieve pulverization caused by other reasons, resulting in the problem that the anti-pulverization effect of the molecular sieve is not comprehensive and strong enough.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adsorption tower for preventing molecular sieve from pulverizing in a medical oxygen concentrator, comprising: an adsorption tower shell, wherein the bottom and top ends of the adsorption tower shell are respectively provided with an air inlet pipe and an air outlet pipe, the inner wall of the adsorption tower shell is fixedly connected to two molecular sieve bed plates, and the space between the two molecular sieve bed plates is used to receive and press the molecular sieve; the inner sides of the two molecular sieve bed plates are fixedly connected to a hollow column, and the outer side of the hollow column is provided with a clamping assembly, and the clamping assembly includes a plurality of clamping plates that slide vertically between the two molecular sieve bed plates, and a plurality of connecting vertical rods are fixedly connected between the clamping plates, and the uppermost one is located at the bottom. The top of the square compression plate is fixedly connected with multiple connecting rods, and the top ends of the connecting rods pass through the top of the molecular sieve bed plate and are fixedly connected to the top plate together, and a compression spring is fixedly connected to the outside of each connecting rod between the top plate and the molecular sieve bed plate above; the inner wall of the side wall of the hollow column and the adsorption tower shell are both paved with spiral heating tubes, and the inner top end of the hollow column is provided with a temperature control component for turning on and controlling the temperature of the spiral heating tubes to heat and dehumidify the molecular sieve; the inner bottom end of the adsorption tower shell is provided with a uniform pressure component to evenly disperse the gas entering from the air inlet pipe to reduce its impact on the molecular sieve bed plate and molecular sieve below.

[0007] Preferably, the compression plate is hollowed out as a whole, and the connecting vertical rods are distributed on the inner and outer sides thereof, and there is a movable gap between the compression plate located at the bottom and the molecular sieve bed plate below.

[0008] Preferably, the temperature control component includes a lower pressure block fixedly connected to the bottom inner side of the top plate, the top of the inner wall of the hollow column is fixedly connected to a fixed seat, and the top inner side of the fixed seat is limited by a movable block for sliding, the bottom end of the movable block is fixedly connected to a rack, the inner wall of the fixed seat is rotatably connected to a temperature control knob, and the temperature control knob is electrically connected to the spiral heating tube, the outer wall of the temperature control knob is formed with protruding teeth evenly distributed around the circumference, and the rack can engage with multiple protruding teeth, the outer side wall of the adsorption tower shell is fixedly installed with a control panel, and the control panel is used to monitor the temperature and humidity inside the adsorption tower shell, and can intelligently control the temperature of the spiral heating tube.

[0009] Preferably, the end wall of the temperature control knob is fixedly connected to a limit rotating block, and the limit rotating block is rotatably connected to the inner wall of the fixing seat, and a torsion spring is fixedly connected to the outside of the limit rotating block between the protruding teeth and the inner wall of the fixing seat.

[0010] Preferably, the equalizing pressure assembly includes a threaded seat fixedly connected to the bottom of the inner wall of the hollow column, and the inner side of the threaded seat is threadedly connected to a threaded rod, wherein only the outer wall of the threaded rod that is threadedly connected to the threaded seat is formed with a threaded protrusion, the top of the threaded rod is fixedly connected to a piston plate, and the piston plate slides sealingly on the inner side of the hollow column, the bottom end of the threaded rod is fixedly connected to a mounting seat, and the outer wall of the mounting seat is fixedly connected to equalizing pressure blades evenly distributed around the circumference, and a driving mechanism is provided below the equalizing pressure blades.

[0011] Preferably, the driving mechanism includes a motor fixedly mounted on the outer wall of the adsorption tower shell, and one side output shaft of the motor passes through the inner side of the adsorption tower shell and is fixedly connected to a rotating shaft, one side of the rotating shaft is fixedly connected to a first bevel gear, and the bottom end of the mounting seat is fixedly connected to a second bevel gear. When the threaded rod moves down to the limit, the first bevel gear engages with the second bevel gear, and the control panel can control the operation of the motor.

[0012] Preferably, a sealed bearing is installed at the rotation point where the rotating shaft and the side wall of the adsorption tower shell penetrate and rotate, so as to reduce the friction between the two and also ensure the sealing effect of the adsorption tower shell.

[0013] Preferably, the ends of the air inlet pipe and the air outlet pipe are fixedly connected with a flow guide cover, which is an outward-expanding structure and covers the outside of the molecular sieve bed plate, and the flow guide cover is fixedly connected to the inner wall of the adsorption tower shell through multiple support rods around the outside.

[0014] Preferably, a plurality of outer support frames are fixedly connected to the outer wall of the adsorption tower shell, and the bottom ends of the outer support frames are commonly fixedly connected to a connecting base.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the adsorption tower for preventing molecular sieve pulverization in the medical oxygen concentrator is provided with a compression component, and a plurality of compression springs are used to push down the multi-layer compression plates to firmly compress the molecular sieve, thereby avoiding the pulverization phenomenon caused by the movement of the molecular sieve; the molecular sieve can be heated and dehumidified by the coordinated arrangement of the spiral heating tube and the temperature control component, thereby ensuring the stability of its mechanical strength and improving the anti-pulverization effect; the gas can be evenly dispersed by the arrangement of the uniform pressure component to reduce its impact on the molecular sieve below, so as to prevent the pulverization phenomenon caused by the movement of the molecular sieve. This further improves the anti-powdering effect of the molecular sieve. The specific contents are as follows: 1. By setting a compression component, if the molecular sieve generates gaps and moves during the operation of the equipment, the multi-layer compression plates between the molecular sieves will have space to move. At this time, multiple compression springs are used to push downward, and the multi-layer compression plates can be moved downward synchronously to firmly press on the molecular sieve bed plate and between the molecular sieves, thereby flattening the moving gaps, thereby effectively avoiding the molecular sieve powdering phenomenon caused by the molecular sieve moving during the operation of the equipment due to the molecular sieve bed not being effectively compressed;

[0016] 2. Through the coordination of the spiral heating tube and the temperature control component, when the pressing plate moves downward, the top plate and the lower pressing block will also move downward synchronously. The lower pressing block will squeeze the moving block to slide downward, and the rack will move downward synchronously. The meshing action with the protruding teeth drives the temperature control knob to rotate, thereby controlling the spiral heating tube to turn on and heat up, thereby drying the damp molecular sieve. At the same time, if the control panel detects that the humidity inside the adsorption tower shell exceeds the threshold, the spiral heating tube can also be directly and intelligently controlled to heat up, thereby achieving a high-temperature moisture absorption effect, thereby ensuring the comprehensiveness and strength of the molecular sieve's anti-powdering performance.

[0017] 3. By setting up a uniform pressure component, the spiral heating tube heats up, causing the air pressure inside the hollow column to increase, which will squeeze the piston plate downward, and the threaded rod will rotate along the threaded seat. The mounting seat and the uniform pressure fan blades will rotate synchronously. The airflow generated by the rotation of the uniform pressure fan blades can initially slow down and uniformly pressurize the incoming gas. When the mounting seat drops to a certain height, the driving mechanism can continue to drive the rotation of the uniform pressure fan blades, thereby achieving a subsequent stable uniform pressure effect and avoiding the pulverization caused by the concentrated impact of the airflow on the molecular sieve below.

[0018] 4. By setting up a driving mechanism, when the mounting base descends to the point where the second bevel gear meshes with the first bevel gear, the motor starts to drive the shaft to rotate, the first bevel gear rotates synchronously, and then drives the meshed second bevel gear to rotate, so that the uniform pressure fan blades can achieve a uniform pressure effect of blowing air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2It is a schematic diagram of the cross-section structure of the present invention;

[0021] Figure 3 Schematic diagram of the cross-section structure of the adsorption tower shell of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the compression assembly of the present invention;

[0023] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 It is a partial structural schematic diagram of the temperature control component of the present invention;

[0025] Figure 7 For the present invention Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 8 It is a structural schematic diagram of the voltage equalizing assembly of the present invention when in operation.

[0027] In the figure: 1. Adsorption tower shell; 2. Air inlet pipe; 3. Air outlet pipe; 4. Molecular sieve bed plate; 5. Hollow column; 6. Compression plate; 7. Connecting vertical rod; 8. Top plate; 9. Compression spring; 10. Spiral heating tube; 11. Lower pressure block; 12. Fixed seat; 13. Moving block; 14. Rack; 15. Temperature control knob; 16. Protruding teeth; 17. Limiting turn block; 18. Torsion spring; 19. Threaded seat; 20. Threaded rod; 21. Piston plate; 22. Mounting seat; 23. Uniform pressure fan blade; 24. Motor; 25. Rotating shaft; 26. First bevel gear; 27. Second bevel gear; 28. Air guide cover; 29. ​​Support rod; 30. Sealed bearing; 31. Outer support frame; 32. Connecting base; 33. Control panel. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1-8 As shown, in the actual use of the existing medical oxygen concentrator, if the molecular sieve bed is not stably compressed, the molecular sieve will move during the operation of the equipment. At the same time, if the molecular sieve is damp and absorbs water, its mechanical strength will decrease. These two situations will also cause the molecular sieve to pulverize, resulting in an incomplete and inadequate anti-pulverization effect of the molecular sieve. In order to solve this technical problem, this embodiment discloses the following technical content:

[0030] The adsorption tower shell 1 has an air inlet pipe 2 and an air outlet pipe 3 provided at the bottom and top of the adsorption tower shell 1 respectively. The inner wall of the adsorption tower shell 1 is fixedly connected to two molecular sieve bed plates 4. The two molecular sieve bed plates 4 are used to receive the pressed molecular sieve. The ends of the air inlet pipe 2 and the air outlet pipe 3 are fixedly connected to a flow guide cover 28. The flow guide cover 28 has an outward-expanding structure and covers the outside of the molecular sieve bed plate 4. The flow guide cover 28 is fixedly connected to the inner wall of the adsorption tower shell 1 through multiple support rods 29 around the outside to improve the installation stability of the flow guide cover 28. The outer wall of the adsorption tower shell 1 is fixedly connected to multiple external support frames 31, and the bottom ends of the external support frames 31 are fixedly connected to a connecting base 32. The adsorption tower shell 1 can be stably installed on the platform by connecting the base 32 and bolt connectors.

[0031] The inner sides of the two molecular sieve bed plates 4 are commonly fixedly connected with a hollow column 5, and a clamping assembly is provided on the outer side of the hollow column 5. The clamping assembly includes a plurality of clamping plates 6 that slide vertically between the two molecular sieve bed plates 4, and a plurality of connecting vertical rods 7 are commonly fixedly connected between the clamping plates 6. The top of the uppermost clamping plate 6 is fixedly connected with a plurality of connecting rods, and the top end of the connecting rod passes through the top of the molecular sieve bed plate 4 and is commonly fixedly connected with a top plate 8, and a compression spring 9 is fixedly connected to the outside of each connecting rod between the top plate 8 and the upper molecular sieve bed plate 4.

[0032] During use, if the molecular sieve creates gaps and moves during the operation of the equipment, the multi-layer compression plates 6 between the molecular sieves will have space to move. At this time, multiple compression springs 9 are used to push downward, and the multi-layer compression plates 6 can be moved downward synchronously to firmly press on the molecular sieve bed plate 4 and between the molecular sieves, and then flatten the moving gaps, thereby effectively avoiding the molecular sieve powdering phenomenon caused by the molecular sieve moving during the operation of the equipment due to the molecular sieve bed layer not being effectively compressed. Among them, the compression plate 6 is hollowed out as a whole, and the connecting vertical rods 7 are distributed on its inner and outer sides. In this way, while ensuring the overall synchronous movement of the compression plate 6, the molecular sieve can be effectively compressed, and there is a moving gap between the compression plate 6 located at the bottom and the molecular sieve bed plate 4 below to leave room for the compression plate 6 to move.

[0033] At the same time, the inner wall of the side wall of the hollow column 5 and the adsorption tower shell 1 are both paved with a spiral heating tube 10, and the inner top of the hollow column 5 is provided with a temperature control component for turning on and controlling the temperature of the spiral heating tube 10, so as to heat and dehumidify the molecular sieve, ensure the stability of its mechanical strength, and then improve the anti-powdering effect. The temperature control component includes a lower pressing block 11 fixedly connected to the bottom of the inner side of the top plate 8, a fixed seat 12 is fixedly connected to the top of the inner wall of the hollow column 5, and a moving block 13 is provided on the inner side of the top of the fixed seat 12 to limit the sliding movement. The bottom end of the moving block 13 is fixedly connected to a rack 14, the inner wall of the fixed seat 12 is rotatably connected to a temperature control knob 15, and the temperature control knob 15 is electrically connected to the spiral heating tube 10, and the outer wall of the temperature control knob 15 is formed with protruding teeth 16 evenly distributed around the circumference, and the rack 14 can engage with multiple protruding teeth 16, and a control panel 33 is fixedly installed on the outer wall of the adsorption tower shell 1, and the control panel 33 is used to monitor the temperature and humidity inside the adsorption tower shell 1, and can intelligently control the temperature of the spiral heating tube 10.

[0034] By adopting the above technical solution, when the pressing plate 6 moves downward as a whole under the push of the pressing spring 9, the top plate 8 and the lower pressing block 11 therebetween will also move downward synchronously, and the lower pressing block 11 will squeeze the moving block 13 during the downward movement, so that the moving block 13 slides downward along the fixed seat 12, and the rack 14 moves downward synchronously, and drives the temperature control knob 15 to rotate through the meshing action with the protruding teeth 16, so as to control the spiral heating tube 10 to turn on, and the greater the rotation amplitude of the temperature control knob 15, the higher the temperature rise of the spiral heating tube 10 will be, thereby automatically heating and drying the molecular sieve while it is being compressed. At the same time, if the control panel 33 detects that the humidity inside the adsorption tower shell 1 exceeds the threshold, it can also directly and intelligently control it when the pressing component is not started. The spiral heating tube 10 is heated to achieve a high-temperature moisture absorption effect to ensure the comprehensiveness and strength of the molecular sieve's anti-powdering performance. When the humidity drops back to the normal range, the control panel 33 automatically controls the spiral heating tube 10 to turn off. At this time, the position of the temperature control knob 15 is automatically reset to the initial position for rotating the spiral heating tube 10 to start. In addition, the end wall of the temperature control knob 15 is fixedly connected to a limit turn block 17, and the limit turn block 17 is rotatably connected to the inner wall of the fixed seat 12, and a torsion spring 18 is fixedly connected to the outside of the limit turn block 17 between the protruding teeth 16 and the inner wall of the fixed seat 12. By setting the limit turn block 17 and the torsion spring 18, the stability of the temperature control knob 15 when it stops when it is driven to rotate can be guaranteed to achieve precise control of the temperature.

[0035] Example 2: The technical content disclosed in this example is a further improvement based on the above example 1. Figures 1-8 As shown, in order to further improve the anti-powdering effect of molecular sieve, this embodiment discloses the following technical contents:

[0036] A pressure equalizing component is provided at the inner bottom end of the adsorption tower shell 1, and the pressure equalizing component can be automatically started as the temperature control component is started, so as to evenly disperse the gas entering from the air inlet pipe 2 to reduce its impact on the molecular sieve bed plate 4 and the molecular sieve below, thereby further improving the anti-powdering effect of the molecular sieve. The pressure equalizing component includes a threaded seat 19 fixedly connected to the bottom of the inner wall of the hollow column 5, and the inner side of the threaded seat 19 is threadedly connected to a threaded rod 20, wherein the threaded rod 20 is only threadedly connected to the threaded seat 19. The outer wall is formed with a threaded protrusion, and the top of the threaded rod 20 is fixedly connected to a piston plate 21, and the piston plate 21 slides sealingly on the inner side of the hollow column 5. The bottom end of the threaded rod 20 is fixedly connected to a mounting seat 22, and the outer wall of the mounting seat 22 is fixedly connected to pressure equalizing blades 23 evenly distributed around the circumference, and a driving mechanism is provided below the pressure equalizing blades 23.

[0037] By adopting the above technical solution, when the spiral heating tube 10 heats up, the gas inside the hollow column 5 will expand and the air pressure will increase, and the air pressure will squeeze the piston plate 21 to move downward, and the threaded rod 20 will spirally rotate along the threaded seat 19, and the mounting seat 22 and the equalizing pressure blades 23 will spirally rotate synchronously, and the airflow generated by the rotation of the equalizing pressure blades 23 can perform preliminary deceleration and equalization of the gas entering from the intake pipe 2. When the mounting seat 22 drops to a certain height, the threaded rod 20 is disengaged from the threaded connection with the threaded seat 19. At this time, the equalizing pressure blades 23 can continue to be driven and rotated by the driving mechanism, thereby achieving subsequent stable equalization effect, avoiding the pulverization caused by the concentrated impact of the airflow on the part of the molecular sieve located below.

[0038] In addition, the driving mechanism includes a motor 24 fixedly mounted on the outer wall of the adsorption tower shell 1, and one side output shaft of the motor 24 passes through the inner side of the adsorption tower shell 1 and is fixedly connected to the rotating shaft 25. A sealed bearing 30 is installed at the rotating part where the rotating shaft 25 and the side wall of the adsorption tower shell 1 pass through to reduce the friction between the two and ensure the sealing effect of the adsorption tower shell 1. One side of the rotating shaft 25 is fixedly connected to the first bevel gear 26, and the bottom end of the mounting seat 22 is fixedly connected to the second bevel gear 27. When the threaded rod 20 moves down to the limit, the first bevel gear 26 is meshed with the second bevel gear 27, and the control panel 33 can control the operation of the motor 24. By adopting the above technical solution, when the mounting seat 22 drops to the point where the second bevel gear 27 is meshed with the first bevel gear 26, the motor 24 starts to drive the rotating shaft 25 to rotate, and the first bevel gear 26 rotates synchronously, and then drives the meshed second bevel gear 27 to rotate, so that the uniform pressure fan blades 23 can achieve a uniform pressure effect of blowing air.

[0039] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] 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 scope of protection of the present invention.

Claims

1. An adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator, comprising an adsorption tower shell (1), an air inlet pipe (2) and an air outlet pipe (3) being respectively provided at the bottom and top ends of the adsorption tower shell (1), and two molecular sieve bed plates (4) being connected to the inner wall of the adsorption tower shell (1); It is characterized by: The inner sides of the two molecular sieve bed plates (4) are connected with a hollow column (5), and the outer sides of the hollow column (5) are provided with a compression assembly, and the compression assembly includes a plurality of compression plates (6) sliding between the two molecular sieve bed plates (4), and a plurality of connecting vertical rods (7) are connected between the compression plates (6), and the top end of the uppermost compression plate (6) is connected to a top plate (8) through a connecting rod, and a compression spring (9) is connected between the top plate (8) and the molecular sieve bed plate (4) above; The inner side walls of the hollow column (5) and the adsorption tower shell (1) are both provided with spiral heating tubes (10), and the top end of the hollow column (5) is provided with a temperature control component for turning on and controlling the temperature of the spiral heating tubes (10) so as to heat and dehumidify the molecular sieve; A pressure equalizing assembly is provided at the bottom of the inner portion of the adsorption tower shell (1) to evenly disperse the gas entering from the air inlet pipe (2) to reduce its impact on the molecular sieve bed plate (4) and the molecular sieve below.

2. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 1, characterized in that: The compression plate (6) is hollowed out as a whole, and the connecting vertical rods (7) are distributed on the inner and outer sides thereof, and a movable gap exists between the compression plate (6) located at the bottom and the molecular sieve bed plate (4) below.

3. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 1, characterized in that: The temperature control component includes a lower pressing block (11) fixedly connected to the bottom inner side of the top plate (8), a fixed seat (12) is fixedly connected to the top of the inner wall of the hollow column (5), and a movable block (13) is limited and slidably provided on the inner side of the top end of the fixed seat (12), and a rack (14) is fixedly connected to the bottom end of the movable block (13), and a temperature control knob (15) is rotatably connected to the inner wall of the fixed seat (12), and the temperature control knob (15) is electrically connected to the spiral heating tube (10), and the outer wall of the temperature control knob (15) is formed with protruding teeth (16) evenly distributed around the circumference, and the rack (14) can be engaged with multiple protruding teeth (16), and a control panel (33) is fixedly installed on the outer wall of the adsorption tower shell (1), and the control panel (33) is used to monitor the temperature and humidity inside the adsorption tower shell (1) and can intelligently control the temperature of the spiral heating tube (10).

4. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 3, characterized in that: The end wall of the temperature control knob (15) is fixedly connected to a limit rotating block (17), and the limit rotating block (17) is rotatably connected to the inner wall of the fixed seat (12), and a torsion spring (18) is fixedly connected between the protruding teeth (16) and the inner wall of the fixed seat (12) and located outside the limit rotating block (17).

5. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 3, characterized in that: The equalizing pressure assembly includes a threaded seat (19) fixedly connected to the bottom of the inner wall of the hollow column (5), and the inner side of the threaded seat (19) is threadedly connected to a threaded rod (20), wherein the threaded protrusion is formed on only the outer wall of the threaded rod (20) that is threadedly connected to the threaded seat (19), the top of the threaded rod (20) is fixedly connected to a piston plate (21), and the piston plate (21) slides sealingly on the inner side of the hollow column (5), the bottom end of the threaded rod (20) is fixedly connected to a mounting seat (22), and the outer wall of the mounting seat (22) is fixedly connected to equalizing pressure blades (23) evenly distributed around the circumference, and a driving mechanism is provided below the equalizing pressure blades (23).

6. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 5, characterized in that: The driving mechanism comprises a motor (24) fixedly mounted on the outer wall of the adsorption tower housing (1), and an output shaft on one side of the motor (24) passes through the inner side of the adsorption tower housing (1) and is fixedly connected to a rotating shaft (25), one side of the rotating shaft (25) is fixedly connected to a first bevel gear (26), and the bottom end of the mounting seat (22) is fixedly connected to a second bevel gear (27), when the threaded rod (20) moves downward to the limit, the first bevel gear (26) and the second bevel gear (27) are engaged, and the control panel (33) can control the operation of the motor (24).

7. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 6, characterized in that: A sealed bearing (30) is installed at the rotation point where the rotating shaft (25) and the side wall of the adsorption tower shell (1) pass through and rotate, thereby reducing friction between the two.

8. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 7, characterized in that: The ends of the air inlet pipe (2) and the air outlet pipe (3) are both fixedly connected to a flow guide cover (28), the flow guide cover (28) is an outward-expanding structure, and covers the outside of the molecular sieve bed plate (4), and the flow guide cover (28) is fixedly connected to the inner wall of the adsorption tower shell (1) through a plurality of support rods (29) around the outside.

9. The adsorption tower for preventing molecular sieve pulverization in a medical oxygen concentrator according to claim 1, characterized in that: A plurality of outer support frames (31) are fixedly connected to the outer wall of the adsorption tower shell (1), and the bottom ends of the outer support frames (31) are fixedly connected to a connection base (32).

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