Molecular sieve pulverization prevention oxygen production host adsorption tower

Abstract

The invention relates to the technical field of oxygen preparation devices, and particularly discloses a molecular sieve pulverization prevention oxygen preparation host adsorption tower which comprises an adsorption tower body, an upper cover is fixedly mounted at the top of the adsorption tower body, a bottom cover is fixedly mounted at the bottom of the adsorption tower body, and supporting frames are fixedly mounted on the outer sides of the adsorption tower body and the bottom cover. An air inlet pipe is fixedly connected in the bottom cover, an exhaust assembly is arranged in the upper cover, and a screening assembly is arranged in the adsorption tower body; the partial pressure plate is mounted in the bottom cover through the reset mechanism, so that when air enters the partial pressure plate, the partial pressure plate is firstly pushed to move, air inlet impact is reduced, then the air is shunted through the filter seats, impurities and moisture in the air are filtered out, the oxygen quality is prevented from being influenced, and air shunting can ensure that the air uniformly acts on the molecular sieve main body; and air can uniformly pass through the molecular sieve main body to realize gas separation, so that the pulverization degree of the molecular sieve main body is reduced, and the oxygen production quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen preparation devices, and in particular to an oxygen production host adsorption tower that prevents molecular sieve pulverization. Background Art

[0002] In the oxygen generator, the adsorption tower plays an important role in separating oxygen from other gas components in the air. The oxygen content in the air is about 21%, the nitrogen content is about 78%, and it also contains a small amount of argon, carbon dioxide and other gases. The adsorption tower uses the difference in the adsorption capacity of molecular sieves for different gas molecules to achieve gas separation. When air flows through the molecular sieve bed in the adsorption tower, the molecular sieve preferentially adsorbs nitrogen, while oxygen is relatively difficult to be adsorbed, so it is enriched when it flows out of the adsorption tower, thereby achieving the purpose of oxygen production.

[0003] However, in the initial operation stage of the adsorption tower, the instantaneous impact of air acts on the molecular sieve, causing the internal particle structure of the molecular sieve to pulverize. The molecular sieve powder produced by the pulverization will block the gas channel in the adsorption tower and hinder the normal flow of gas, which will not only reduce the oxygen production efficiency, but also affect the oxygen production quality with the flow of air. In addition, due to the difference in intake pressure, the higher intake pressure will also cause the air to impact the molecular sieve, which will lead to the occurrence of molecular sieve pulverization.

[0004] Therefore, it is necessary to provide an oxygen production host adsorption tower that prevents molecular sieve pulverization, aiming to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide an oxygen production host adsorption tower that prevents molecular sieve pulverization, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is: An anti-molecular sieve pulverization oxygen production host adsorption tower, comprising an adsorption tower body, an upper cover is fixedly installed on the top of the adsorption tower body, a bottom cover is fixedly installed on the bottom of the adsorption tower body, support frames are fixedly installed on the outer sides of the adsorption tower body and the bottom cover, an air inlet pipe is fixedly connected to the inside of the bottom cover, an exhaust assembly is arranged inside the upper cover, a screening assembly is arranged inside the adsorption tower body, a pressure regulating assembly is arranged inside the bottom cover, the pressure regulating assembly comprises a pressure dividing mechanism and a support plate, and the support plate is fixedly connected to the bottom of the adsorption tower body; The pressure dividing mechanism includes a pressure dividing plate slidably connected to the inside of the bottom cover, a filter seat is evenly fixedly connected to the inside of the adsorption tower body, a telescopic sleeve is fixedly connected to the bottom of the pressure dividing plate, a fixed sleeve is fixedly connected to the inner wall of the bottom cover, and the telescopic sleeve is slidably connected to the inside of the fixed sleeve; A fixing tube is fixedly connected to the interior of the support plate, a reset mechanism is evenly arranged between the pressure dividing plate and the support plate, a sealing mechanism is arranged at the bottom of the pressure dividing plate, and a grille through groove is opened on the outer side of one end of the fixing tube located in the screening assembly.

[0007] As a further improvement of the above scheme, the exhaust assembly includes a fixed seat fixedly connected to the upper cover, the outer side of the fixed seat is fixedly connected to an outlet pipe and an exhaust pipe, the outlet pipe is located above the exhaust pipe, the interior of the fixed seat is slidably connected to a movable sleeve, a spring is fixedly connected between the fixed seat and the movable sleeve, a slider is symmetrically fixedly connected to the bottom of the movable sleeve, the inner wall of the fixed seat is symmetrically opened with spiral grooves, the sliders are all slidably connected to the spiral grooves, and the top of the fixed pipe is slidably connected to the movable pipe.

[0008] As a further improvement of the above scheme, the sieve assembly includes a mounting seat and a molecular sieve body, the mounting seat is fixedly connected to the inner side of the adsorption tower body, the molecular sieve body is slidably connected between the mounting seat and the fixed tube, the inner side of the adsorption tower body is symmetrically fixedly connected with a mounting block, the outer side wall of the mounting block is fixedly connected with a gasket, and the upper and lower surfaces of the molecular sieve body are both in contact with the gasket.

[0009] As a further improvement of the above solution, the top of the pressure dividing plate is evenly fixedly connected with a fixing rod, the outer side of the movable tube is evenly fixedly connected with a supporting rod, and the top of the fixing rod passes through the mounting seat and is fixedly connected to the supporting rod.

[0010] As a further improvement of the above scheme, the reset mechanism includes a limit seat fixedly connected to the inner wall of the bottom cover, the limit seat is internally slidably connected with a movable rod and a limit plate, the movable rod is slidably connected to the inside of the limit plate, a second spring is fixedly connected between the pressure dividing plate and the limit plate, a clamping block is symmetrically slidably connected inside the limit plate, a third spring is fixedly connected between the clamping block and the limit plate, and a clamping groove matched with the clamping block is symmetrically opened on the outer side of the movable rod.

[0011] As a further improvement of the above scheme, the sealing mechanism includes a sealing disk, the top of the sealing disk is evenly and fixedly connected with a connecting rod, the top of the connecting rod passes through the pressure dividing disk, a spring four is fixedly connected between the top of the connecting rod and the pressure dividing disk, and the sealing disk is in contact with the pressure dividing disk.

[0012] As a further improvement of the above solution, a sealing sleeve is evenly and fixedly connected to the bottom of the support plate, a truncated cone-shaped groove with a larger upper portion and a smaller lower portion is provided at the bottom of the sealing sleeve, and the filter seat is slidably connected to the inside of the sealing sleeve.

[0013] As a further improvement of the above solution, a circular groove is provided on the upper surface of the sealing disk, and arc-shaped through grooves are evenly provided on the outer side of the bottom of the fixing tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The pressure divider is installed inside the bottom cover through a reset mechanism, so that when air enters, it first pushes the pressure divider to move to reduce the impact of air intake. Then the air is diverted through multiple filter seats and impurities and moisture are filtered to prevent them from affecting the quality of oxygen. At the same time, the air diversion can ensure that it acts evenly on the molecular sieve body to avoid partial long-term impact and premature pulverization. It can also allow air to pass through the molecular sieve body evenly to achieve gas separation, reduce the degree of pulverization of the molecular sieve body, and improve the quality of oxygen production.

[0015] 2. The reset mechanism and the sealing mechanism cooperate to make the pressure divider plate move in two stages under the push of air. In the first stage, the air under normal pressure pushes the pressure divider plate to move upward normally, opens the top of the air inlet pipe, and diverts the initial air, allowing the air to slowly contact the molecular sieve body for gas separation; in the second stage, high-pressure air enters between the bottom cover and the pressure divider plate, and continues to push the pressure divider plate, so that it drives the movable rod to separate from the limit plate, and the elastic reset of spring 2 pushes the pressure divider plate to separate from the sealing plate, further realizing the diversion of high-pressure air. At the same time, the movement of high-pressure gas in the fixed tube can bring out the powdered particle structure in the molecular sieve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the adsorption tower body of the present invention; Figure 3 It is a schematic diagram of the structure of the exhaust assembly of the present invention; Figure 4 It is a schematic diagram of the top structure of the adsorption tower body of the present invention; Figure 5 It is a structural schematic diagram of the screening assembly of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the pressure dividing plate of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at A in FIG. Figure 8 For the present invention Figure 6Schematic diagram of the structure at B in FIG. Fig. 9 It is a schematic diagram of the bottom structure of the support plate of the present invention; Fig.10 It is a schematic diagram of the internal structure of the bottom cover of the present invention; Fig.11 It is a schematic diagram of the bottom structure of the pressure dividing plate of the present invention; Fig.12 An exploded view of a portion of the exhaust assembly of the present invention; Fig.13 It is a schematic diagram of the internal structure of the fixing seat of the present invention.

[0018] In the figure: 1, adsorption tower body; 2, upper cover; 3, bottom cover; 4, support frame; 5, air inlet pipe; 6, exhaust assembly; 61, fixed seat; 62, air outlet pipe; 63, exhaust pipe; 64, movable pipe; 651, fixed rod; 652, support rod; 66, movable sleeve; 67, spring 1; 68, slider; 7, screening assembly; 71, mounting seat; 72, molecular sieve body; 73, mounting block; 8, pressure regulating assembly; 81, screening Pressure mechanism; 811, pressure dividing plate; 812, filter seat; 813, fixed sleeve; 814, telescopic sleeve; 82, support plate; 83, fixed tube; 84, reset mechanism; 841, limit seat; 842, movable rod; 843, spring two; 844, limit plate; 845, block; 846, spring three; 85, sealing mechanism; 851, sealing plate; 852, connecting rod; 853, spring four; 86, sealing sleeve. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 13 As shown, the present invention provides an embodiment: an adsorption tower for an oxygen-making host machine to prevent molecular sieve pulverization, comprising an adsorption tower body 1, an upper cover 2 is fixedly installed on the top of the adsorption tower body 1, a bottom cover 3 is fixedly installed on the bottom of the adsorption tower body 1, a support frame 4 is fixedly installed on the outer sides of the adsorption tower body 1 and the bottom cover 3, an air inlet pipe 5 is fixedly connected to the inside of the bottom cover 3, an exhaust assembly 6 is arranged inside the upper cover 2, a screening assembly 7 is arranged inside the adsorption tower body 1, a pressure regulating assembly 8 is arranged inside the bottom cover 3, and the pressure regulating assembly 8 includes a pressure dividing mechanism 81 and a support plate 82, and the support plate 82 is fixedly connected to the bottom of the adsorption tower body 1; The pressure dividing mechanism 81 includes a pressure dividing plate 811 slidably connected to the inside of the bottom cover 3, a filter seat 812 is evenly fixedly connected to the inside of the adsorption tower body 1, a telescopic sleeve 814 is fixedly connected to the bottom of the pressure dividing plate 811, a fixed sleeve 813 is fixedly connected to the inner wall of the bottom cover 3, and the telescopic sleeve 814 is slidably connected to the inside of the fixed sleeve 813; A fixing tube 83 is fixedly connected to the inside of the support plate 82, a reset mechanism 84 is evenly arranged between the pressure dividing plate 811 and the support plate 82, a sealing mechanism 85 is arranged at the bottom of the pressure dividing plate 811, and a grille groove is opened on the outer side of one end of the fixing tube 83 located in the screening assembly 7.

[0021] In practical application, the embodiment of the present invention is as follows: Figure 2 , Figure 5 , Figure 6 , Fig.10 and Fig.11 As shown, air enters the bottom cover 3 from the air inlet pipe 5, and first impacts the pressure dividing plate 811. Under normal circumstances, the air pushes the pressure dividing plate 811 to move upward. In this process, the telescopic sleeve 814 slides in the fixed sleeve 813 to ensure the stability of the movement of the pressure dividing plate 811. The upward movement of the pressure dividing plate 811 realizes the opening of the top of the air inlet pipe 5, and the air begins to pass through the filter seat 812. The filter seat 812 performs preliminary filtering and diversion on the air, so that the air can flow slowly and evenly to the sub-screening component 7 in the adsorption tower body 1, so that the air can be gently in contact with the sub-screening component 7, reducing the impact on the molecular sieve and avoiding the premature occurrence of pulverization. like Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, when the intake pressure is relatively high, the high-pressure air further pushes the pressure dividing plate 811. At this time, the reset mechanism 84 and the sealing mechanism 85 begin to work together. The reset mechanism 84 adjusts the movement amplitude and state of the pressure dividing plate 811 in this process, and the state change of the sealing mechanism 85 can further realize the effective diversion of the high-pressure air. At the same time, when the high-pressure air flows in the fixed pipe 83 located in the screening component 7, the powdered particles are taken out of the adsorption tower body 1 through the grid grooves, reducing the influence of the powdered particles on the performance of the molecular sieve and the damage to the equipment, ensuring the normal and efficient operation of the oxygen production host adsorption tower, improving the oxygen production efficiency and quality, and extending the service life of the screening component 7.

[0022] like Figure 2 , Figure 3 , Figure 4 , Fig.12 and Fig.13As shown, the exhaust assembly 6 includes a fixed seat 61 fixedly connected to the upper cover 2, the outer side of the fixed seat 61 is fixedly connected with an outlet pipe 62 and an exhaust pipe 63, the outlet pipe 62 is located at the top of the exhaust pipe 63, the inside of the fixed seat 61 is slidably connected with a movable sleeve 66, a spring 67 is fixedly connected between the fixed seat 61 and the movable sleeve 66, the bottom of the movable sleeve 66 is symmetrically fixedly connected with a slider 68, the inner wall of the fixed seat 61 is symmetrically provided with spiral grooves, the sliders 68 are all slidably connected in the spiral grooves, the top of the fixed tube 83 is slidably connected with the movable tube 64, the top of the pressure dividing plate 811 is evenly fixedly connected with a fixed rod 651, the outer side of the movable tube 64 is evenly fixedly connected with a support rod 652, the top of the fixed rod 651 passes through the mounting seat 71 and is fixedly connected to the support rod 652.

[0023] When the embodiment of the present invention is actually applied, during the oxygen production process, when the gas pressure in the adsorption tower is relatively high, the gas generates an upward thrust on the movable sleeve 66 through the pressure dividing plate 811 (the pressure dividing plate 811 moves upward to drive the fixed rod 651, and the fixed rod 651 drives the movable sleeve 66 to move upward through the support rod 652), and the movable sleeve 66 slides upward in the fixed seat 61. During this process, since the slider 68 slides in the spiral groove, the upward movement of the movable sleeve 66 is not linear, but is accompanied by rotation. This rotational movement enables the adsorption tower body 1 to be connected with the air outlet pipe 62, or connected with the exhaust pipe 63, so that when the air pressure is relatively high, the air in the fixed pipe 83 drives the pulverized particles to be discharged from the exhaust pipe 63, and when the air pressure is normal, the gas is discharged from the adsorption tower through the air outlet pipe 62, thereby realizing the exhaust function in the oxygen production process; Among them, the spring 1 67 plays a resetting role on the movable sleeve 66. When the gas pressure decreases, the spring 1 67 can make the movable sleeve 66 return to the initial position.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, the sieve assembly 7 includes a mounting seat 71 and a molecular sieve body 72. The mounting seat 71 is fixedly connected to the inner side of the adsorption tower body 1. The molecular sieve body 72 is slidably connected between the mounting seat 71 and the fixed tube 83. The inner side of the adsorption tower body 1 is symmetrically fixedly connected with a mounting block 73. The outer wall of the mounting block 73 is fixedly connected with a gasket. The upper and lower surfaces of the molecular sieve body 72 are both in contact with the gasket.

[0025] In actual application of the embodiment of the present invention, air enters the sieve assembly 7 in the adsorption tower body 1 after being processed by the pressure regulating assembly 8, and the molecular sieve body 72 is located in a sliding connection between the mounting seat 71 and the fixed tube 83, so that the molecular sieve body 72 can have a certain buffer space when it is impacted by airflow, thereby reducing damage caused by vibration or excessive local force; Among them, the gasket on the mounting block 73 on the inner side of the adsorption tower body 1 fits with the upper and lower surfaces of the molecular sieve main body 72, which can support and protect the molecular sieve main body 72, so that the molecular sieve main body 72 remains stable during operation, reduces the powdering phenomenon caused by friction and other factors, extends the service life of the molecular sieve main body 72, and ensures the high efficiency and stability of gas separation in the oxygen production process.

[0026] like Figure 6 , Figure 7 , Fig.10 and Fig.11 As shown, the reset mechanism 84 includes a limit seat 841 fixedly connected to the inner wall of the bottom cover 3, the limit seat 841 is internally slidably connected with a movable rod 842 and a limit plate 844, the movable rod 842 is slidably connected to the inside of the limit plate 844, a spring 2 843 is fixedly connected between the pressure dividing plate 811 and the limit plate 844, a clamping block 845 is symmetrically slidably connected inside the limit plate 844, a spring 3 846 is fixedly connected between the clamping block 845 and the limit plate 844, and a clamping groove matched with the clamping block 845 is symmetrically opened on the outer side of the movable rod 842.

[0027] In actual application of the embodiment of the present invention, when the air pushes the pressure dividing plate 811 to move, the pressure dividing plate 811 drives the spring 2 843, the limit plate 844 and the movable rod 842 connected thereto to move as a whole. Under normal circumstances, the clamping block 845 is clamped into the clamping groove of the movable rod 842 under the action of the spring 3 846, so that the limit plate 844 and the movable rod 842 are relatively fixed, thereby limiting the movement range of the pressure dividing plate 811, ensuring that it works stably within a certain pressure range, and allowing air to enter the adsorption tower at a suitable speed and pressure. The screening assembly 7; when the intake pressure is too high, the greater pressure pushes the pressure dividing plate 811 to move further, so that the block 845 overcomes the elastic force of the spring three 846 and escapes from the slot. At this time, the spring two 843 can drive the pressure dividing plate 811 under the elastic force of the reset, so that it can move further to adapt to the high pressure situation, and cooperate with the sealing mechanism 85 to achieve effective buffering and diversion of the high-pressure air, avoid excessive impact of the high-pressure air on the molecular sieve body 72, reduce the possibility of molecular sieve pulverization, and maintain the stable operation of the oxygen production host adsorption tower.

[0028] like Figure 5 , Figure 6 and Figure 8 As shown, the sealing mechanism 85 includes a sealing disk 851, the top of the sealing disk 851 is evenly fixedly connected with a connecting rod 852, the top of the connecting rod 852 passes through the pressure dividing disk 811, a spring 853 is fixedly connected between the top of the connecting rod 852 and the pressure dividing disk 811, and the sealing disk 851 is in contact with the pressure dividing disk 811.

[0029] When the embodiment of the present invention is actually used, under normal conditions, spring four 853 is in a natural state, so that the sealing disk 851 fits tightly on the pressure dividing disk 811, thereby preventing air leakage and ensuring the sealing of the air intake path. When air enters and pushes the pressure dividing disk 811 to move, the air enters the screening assembly 7 in the adsorption tower body 1 according to a predetermined path. When the air intake pressure is too large, the reset mechanism 84 pushes the pressure dividing disk 811 to continue to move upward, while the sealing disk 851 remains in its original position with the support of the fixed tube 83 and compresses the spring four 853. At this time, the air intake pipe 5 is connected to the fixed tube 83, so that the high-pressure air can be diverted through the fixed tube 83 and take away part of the powdered particle structure.

[0030] like Figure 5 and Fig. 9 As shown, a sealing sleeve 86 is evenly and fixedly connected to the bottom of the support plate 82 , and a truncated cone-shaped groove with a larger upper portion and a smaller lower portion is provided at the bottom of the sealing sleeve 86 , and the filter seat 812 is slidably connected to the inside of the sealing sleeve 86 .

[0031] In actual application of the embodiment of the present invention, when the pressure is too high, the filter seat 812 moves to the inside of the sealing sleeve 86. At this time, not only can the outflow of part of the gas be reduced, but the filter seat 812 can also be maintained in the sealing sleeve 86 through the flow of high-pressure gas in the truncated cone-shaped groove.

[0032] like Figure 5 and Figure 6 As shown, a circular groove is formed on the upper surface of the sealing disk 851 , and arc-shaped through grooves are evenly formed on the outer side of the bottom of the fixing tube 83 .

[0033] When the embodiment of the present invention is actually used, the circular groove on the upper surface of the sealing disk 851 ensures the connection between the fixed tube 83 and the sealing disk 851, and makes the arc-shaped through groove just located in the gap between the pressure dividing disk 811 and the sealing disk 851, ensuring that the high-pressure air is diverted into the fixed tube 83 and flows.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-molecular sieve pulverization oxygen production host adsorption tower, comprising an adsorption tower body (1), an upper cover (2) fixedly mounted on the top of the adsorption tower body (1), a bottom cover (3) fixedly mounted on the bottom of the adsorption tower body (1), and support frames (4) fixedly mounted on the outer sides of the adsorption tower body (1) and the bottom cover (3), characterized in that: An air inlet pipe (5) is fixedly connected to the interior of the bottom cover (3), an exhaust assembly (6) is arranged inside the upper cover (2), a screening assembly (7) is arranged inside the adsorption tower body (1), a pressure regulating assembly (8) is arranged inside the bottom cover (3), the pressure regulating assembly (8) comprises a pressure dividing mechanism (81) and a support plate (82), and the support plate (82) is fixedly connected to the bottom of the adsorption tower body (1); The pressure dividing mechanism (81) comprises a pressure dividing plate (811) slidably connected to the inside of the bottom cover (3); a filter seat (812) is evenly and fixedly connected to the inside of the adsorption tower body (1); a telescopic sleeve (814) is fixedly connected to the bottom of the pressure dividing plate (811); a fixed sleeve (813) is fixedly connected to the inner wall of the bottom cover (3); and the telescopic sleeve (814) is slidably connected to the inside of the fixed sleeve (813); A fixing tube (83) is fixedly connected to the interior of the support plate (82), a reset mechanism (84) is evenly arranged between the pressure dividing plate (811) and the support plate (82), a sealing mechanism (85) is arranged at the bottom of the pressure dividing plate (811), and a grille through groove is provided on the outer side of one end of the fixing tube (83) located in the sub-screening assembly (7).

2. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 1, characterized in that: The exhaust assembly (6) includes a fixed seat (61) fixedly connected to the upper cover (2); an air outlet pipe (62) and an exhaust pipe (63) are fixedly connected to the outer side of the fixed seat (61); the air outlet pipe (62) is located above the exhaust pipe (63); a movable sleeve (66) is slidably connected to the inside of the fixed seat (61); a spring (67) is fixedly connected between the fixed seat (61) and the movable sleeve (66); a slider (68) is symmetrically fixedly connected to the bottom of the movable sleeve (66); spiral grooves are symmetrically opened on the inner wall of the fixed seat (61); the sliders (68) are all slidably connected to the spiral grooves; and the top of the fixed pipe (83) is slidably connected to the movable pipe (64).

3. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 1, characterized in that: The sieve assembly (7) comprises a mounting seat (71) and a molecular sieve body (72); the mounting seat (71) is fixedly connected to the inner side of the adsorption tower body (1); the molecular sieve body (72) is slidably connected between the mounting seat (71) and the fixed tube (83); a mounting block (73) is symmetrically fixedly connected to the inner side of the adsorption tower body (1); a gasket is fixedly connected to the outer side wall of the mounting block (73); and the upper and lower surfaces of the molecular sieve body (72) are both in contact with the gasket.

4. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 2, characterized in that: The top of the pressure dividing plate (811) is evenly and fixedly connected to a fixing rod (651), the outer side of the movable tube (64) is evenly and fixedly connected to a supporting rod (652), and the top of the fixing rod (651) passes through the mounting seat (71) and is fixedly connected to the supporting rod (652).

5. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 1, characterized in that: The reset mechanism (84) comprises a limit seat (841) fixedly connected to the inner wall of the bottom cover (3); a movable rod (842) and a limit plate (844) are slidably connected inside the limit seat (841); the movable rod (842) is slidably connected inside the limit plate (844); a second spring (843) is fixedly connected between the pressure dividing plate (811) and the limit plate (844); a clamping block (845) is symmetrically slidably connected inside the limit plate (844); a third spring (846) is fixedly connected between the clamping block (845) and the limit plate (844); and a clamping groove that matches the clamping block (845) is symmetrically provided on the outer side of the movable rod (842).

6. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 1, characterized in that: The sealing mechanism (85) comprises a sealing disk (851), the top of the sealing disk (851) is evenly and fixedly connected to a connecting rod (852), the top of the connecting rod (852) passes through the pressure dividing disk (811), a spring four (853) is fixedly connected between the top of the connecting rod (852) and the pressure dividing disk (811), and the sealing disk (851) is in close contact with the pressure dividing disk (811).

7. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 1, characterized in that: A sealing sleeve (86) is evenly and fixedly connected to the bottom of the support plate (82), a truncated cone-shaped groove which is larger at the top and smaller at the bottom is provided at the bottom of the sealing sleeve (86), and the filter seat (812) is slidably connected to the inside of the sealing sleeve (86).

8. The molecular sieve pulverization-proof oxygen production host adsorption tower according to claim 6, characterized in that: A circular groove is provided on the upper surface of the sealing disk (851), and arc-shaped through grooves are evenly provided on the outer side of the bottom of the fixing tube (83).

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