A molecular sieve oxygen generator and its molecular sieve device

Abstract

This invention discloses a molecular sieve oxygen generator and its molecular sieve device, belonging to the field of molecular sieves. It includes a housing with a main shaft rotatably mounted in the center. An air supply mechanism is located at the upper end of the housing. Multiple brackets are arranged in a circumferential array on the outer side of the main shaft, and an auxiliary sealing mechanism is located on the outer side of each bracket. A molecular sieve layer is assembled between two brackets, and a protective mechanism is provided on the molecular sieve layer. A replacement chamber is opened inside the housing, and a through hole is opened on the side of the replacement chamber away from the main shaft. A baffle is inserted into the through hole. The auxiliary sealing mechanism includes magnets symmetrically installed on the outer side of the brackets. A metal strip is connected to each bracket via the magnets, and the upper end of the metal strip is fixedly connected to the lower end of the molecular sieve. This allows for convenient replacement of a single molecular sieve layer, so that the unreplaced molecular sieve layer can still perform the oxygen generation step, saving the operation steps of shutting down the molecular sieve oxygen generator.

Description

Technical Field

[0001] This invention relates to the field of molecular sieves, and more specifically, to a molecular sieve oxygen generator and its molecular sieve device. Background Technology

[0002] For example, the miniaturized medical molecular sieve oxygen concentrator disclosed in the authorization announcement number CN113797703A includes a top cover, display panel, nebulizer nozzle, oxygen outlet nozzle, control board, bottom cover, bottom cover feet, self-tapping screws, side cover, silencer cover, core assembly, compressor cover, air inlet silencer cover, heat dissipation aluminum tube, circuit board, electronic flow meter, compressor, positioning screws, buffer feet, molecular sieve layer, air outlet cover, molecular sieve mesh, sealing ring, molecular sieve aluminum tube, spring, air inlet cover, mechanical valve, compressor base, cooling fan, front cover, front cover decorative ring, water tank assembly, rear cover, air inlet sealing cover, silencer filter, switch, and air inlet filter cover. Although it uses air as raw material to pass into the molecular sieve layer, the oxygen in the air is separated and concentrated by the adsorption of nitrogen and other gases in the air by the molecular sieve, and then the oxygen is discharged through the mechanical valve. At the same time, the oxygen concentrator has a compact structure, which further reduces the size of the oxygen concentrator, thereby adapting to a variety of usage environments and meeting the needs of small medical institutions, clinics, and home use.

[0003] However, this does not solve the problem that existing molecular sieve oxygen generators, when the molecular sieve needs to be replaced, require stopping the generator and opening the top cover to remove the entire molecular sieve, thus interrupting the oxygen production process and causing a decrease in production efficiency. To address this, we propose a molecular sieve oxygen generator and its molecular sieve device. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the present invention aims to provide a molecular sieve oxygen generator and its molecular sieve device, which allows for convenient replacement of a single molecular sieve, so that the unreplaced molecular sieve can still perform the oxygen generation process, thus saving the operation steps of shutting down the molecular sieve oxygen generator.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A molecular sieve oxygen generator and its molecular sieve device include a housing, a main shaft rotatably mounted in the middle of the housing, an air supply mechanism at the upper end of the housing, multiple brackets arranged in a circumferential array on the outer side of the main shaft, an auxiliary sealing mechanism on the outer side of each bracket, a molecular sieve layer assembled between two brackets, a protective mechanism on the molecular sieve layer, a replacement chamber opened inside the housing, a through hole opened on the side of the replacement chamber away from the main shaft, and a baffle inserted into the through hole.

[0009] Furthermore, the auxiliary sealing mechanism includes magnets symmetrically installed on the outside of the bracket, the bracket is connected to a metal strip via the magnet, the upper end of the metal strip is fixedly connected to the lower end of the molecular sieve layer, and a guide mechanism is provided at the upper end of the magnet.

[0010] Furthermore, a sealing cover is hinged to the upper end of the replacement cavity, a handle is fixedly installed on the outer wall of the sealing cover, and a crank is fixedly installed at one end of the main shaft.

[0011] Furthermore, the protection mechanism includes a frame fixedly installed on the outside of the molecular sieve, with two wedges symmetrically arranged at the lower end of the frame, and the end of the metal strip away from the main shaft is fixedly connected to one end of the wedge.

[0012] Furthermore, a sealing gasket is fixedly installed at one end of the frame near the main shaft, and a silicone strip is fixedly installed inside the through hole.

[0013] Furthermore, the guiding mechanism includes a V-shaped groove formed on the upper end of the magnet, and a metal disc is fixedly installed on the lower end of the baffle and on one side of the sealing gasket.

[0014] Furthermore, a ring is fixedly installed at the end of the baffle away from the main shaft, and a support ring is fixedly installed on the outside of the housing, which is vertically opposite to the ring. A pin is inserted between the inside of the ring and the inside of the support ring.

[0015] Furthermore, the air supply mechanism includes an air inlet pipe mounted on the upper end of the housing, an air pump fixedly connected to the outside of the air inlet pipe, and a filter box fixedly installed at the end of the air inlet pipe away from the housing.

[0016] Furthermore, an electric heating element is fixedly installed on the inner wall of the enclosure and at the lower end of the bracket; a temperature sensor is fixedly installed on the lower wall inside the enclosure; a transformer and an adjustment knob electrically connected to the transformer are fixedly installed at the lower end of the enclosure; and the output end of the transformer is electrically connected to the electric heating element.

[0017] 3. Beneficial Effects

[0018] Compared with the prior art, the advantages of this invention are:

[0019] (1) This scheme rotates the main shaft, causing the main shaft to drive the bracket and molecular sieve layer to rotate at a specified angle until a molecular sieve layer is aligned and the through hole is blocked. Then, the baffle is inserted into the through hole and moves along the gap between the bracket and the molecular sieve until one end of the baffle presses against the outside of the main shaft to lift the molecular sieve layer on the bracket. Then, a molecular sieve layer inside the box is taken out through the opening at the top of the replacement chamber. At the same time, the gap between two adjacent brackets due to the lack of a molecular sieve layer is blocked by the baffle, making it convenient to replace a molecular sieve layer separately. Thus, the molecular sieve layer that has not been replaced can still perform the oxygen generation step, saving the operation steps of stopping the molecular sieve oxygen generator. Finally, the baffle in the through hole is taken out and the molecular sieve layer is pressed down, and one end of the molecular sieve layer blocks the through hole.

[0020] (2) When the molecular sieve is placed on the bracket, the magnetic field of the magnet attracts the metal strip on the molecular sieve layer. At the same time, the upper end of the metal strip is fixedly connected to the lower end of the molecular sieve layer. Due to the structural characteristics, the molecular sieve layer is subjected to the downward force applied by the metal strip, which makes it easy to stick the molecular sieve layer to the bracket. This reduces the centrifugal force on the molecular sieve layer when it rotates in the box, and reduces the occurrence of some gas not being filtered due to the molecular sieve layer deviating from the main axis under centrifugal force. In addition, the molecular sieve layer is attracted by the magnet during installation, which facilitates the installation of the molecular sieve layer.

[0021] (3) When the baffle is inserted into the gap between the bracket and the molecular sieve layer, the baffle has a ramp at one end, which allows the ramp to be inserted into the gap between the bracket and the molecular sieve layer. The wedge increases the opening of the gap, so that the baffle applies an upward thrust to the wedge. The wedge drives the molecular sieve layer, metal strip and frame to move upward, so that the molecular sieve layer is removed from the bracket, making it easier to replace the molecular sieve layer on the bracket.

[0022] (4) When the baffle enters the box along the bracket, the magnet applies an attractive force to the metal disc, so that the lower end of the baffle can be in close contact with the bracket, reducing the occurrence of air bypassing the molecular sieve layer through the gap between the bracket and the baffle. At the same time, the V-shaped groove reduces the contact area between the bracket and the baffle, thereby alleviating the friction between the bracket and the baffle and further facilitating the insertion of the baffle to facilitate the replacement of the molecular sieve layer.

[0023] (5) When the baffle is inserted into the through hole, the baffle drives the ring to move until the ring is vertically aligned with the support ring. Then, the pin is inserted into the inside of the ring and the support ring, which strengthens the connection between the ring and the support ring. This makes it easier to lock the ring in this position, which is convenient for locking the baffle when replacing the molecular sieve layer. This saves the operation steps of manually pressing the baffle, and further facilitates the replacement of the molecular sieve layer. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 This is a bottom-view structural diagram of the present invention;

[0026] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the main shaft structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the main structure of the bracket of the present invention;

[0029] Figure 6 This is a bottom view of the molecular sieve structure of the present invention;

[0030] Figure 7 This is a bottom view of the baffle structure of the present invention.

[0031] Explanation of the labels in the diagram:

[0032] 1. Housing; 2. Main shaft; 3. Bracket; 4. Molecular sieve layer; 5. Replacement chamber; 6. Through hole; 7. Baffle; 8. Metal strip; 9. Magnet; 10. Sealing cover; 11. Handle; 12. Frame; 13. Wedge; 14. Sealing gasket; 15. Silicone strip; 16. V-groove; 17. Metal disc; 18. Ring; 19. Support ring; 20. Pin; 21. Air inlet pipe; 22. Air pump; 23. Filter box; 24. Heating element; 25. Temperature sensor; 26. Transformer; 27. Adjustment knob; 28. Crank handle. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] Please see Figure 1-7A molecular sieve oxygen generator and its molecular sieve device include a housing 1, a main shaft 2 rotatably mounted in the middle of the housing 1, an air supply mechanism at the upper end of the housing 1, multiple brackets 3 arranged in a circumferential array on the outer side of the main shaft 2, an auxiliary sealing mechanism on the outer side of the brackets 3, a molecular sieve layer 4 assembled between two brackets 3, a protective mechanism on the molecular sieve layer 4, a replacement chamber 5 opened inside the housing 1, a through hole 6 opened on the side of the replacement chamber 5 away from the main shaft 2, a material replacement port vertically opposite the through hole 6 opened at the upper end of the replacement chamber 5, the brackets 3 and the through hole 6 are horizontally opposite each other, a baffle 7 is inserted into the through hole 6, one end of the baffle 7 is provided with a slope, during operation, by rotating the main shaft 2, the main shaft 2 drives the brackets 3 and the molecular sieve layer 4 to rotate. The sieve layer 4 is rotated at a specified angle until one molecular sieve layer 4 is aligned and blocks the through hole 6. Then, the baffle 7 is inserted into the through hole 6 and moves along the gap between the bracket 3 and the molecular sieve layer 4 until one end of the baffle 7 presses against the outside of the main shaft 2 to lift the molecular sieve layer 4 on the bracket 3. Then, one molecular sieve layer 4 is taken out from the box 1 through the opening at the upper end of the replacement chamber 5. At the same time, the baffle 7 blocks the gap between two adjacent brackets 3 due to the lack of molecular sieve layer 4, making it convenient to replace one molecular sieve layer 4 individually. Thus, the molecular sieve layer 4 that has not been replaced can still perform the oxygen generation step, saving the operation steps of stopping the molecular sieve oxygen generator. Finally, the baffle 7 in the through hole 6 is taken out and the molecular sieve layer 4 is pressed down, and one end of the molecular sieve layer 4 blocks the through hole 6.

[0036] See Figure 1 and Figure 3 A sealing cover 10 is hinged to the upper end of the replacement chamber 5. A handle 11 is fixedly installed on the outer wall of the sealing cover 10. A crank 28 is fixedly installed at one end of the main shaft 2. When the molecular sieve layer 4 passes through the material exchange port of the replacement chamber 5, the main shaft 2 is rotated by the crank 28 until a molecular sieve layer 4 is vertically facing the sealing cover 10. The sealing cover 10 on the replacement chamber 5 is opened by the handle 11 to facilitate the removal of the molecular sieve layer 4. Conversely, the material exchange port of the replacement chamber 5 is blocked by the sealing cover 10 to prevent gas from escaping from the material exchange port of the replacement chamber 5.

[0037] See Figure 1 and Figure 2 The air supply mechanism includes an air inlet pipe 21 mounted on the upper end of the housing 1. An air pump 22 is fixedly connected to the outside of the air inlet pipe 21. A filter box 23 is fixedly installed at the end of the air inlet pipe 21 away from the housing 1. Activated carbon is placed inside the filter box 23. This technical solution is existing technology and is not shown in the figure. When the housing 1 needs to supply air, the air pump 22 is controlled to work, so that the gas in the air inlet pipe 21 flows and generates negative pressure. Air is attracted by the air inlet pipe 21 and at the same time, the gas entering the air inlet pipe 21 is filtered through the filter box 23.

[0038] See Figure 1 and Figure 2A heating element 24 is fixedly installed on the inner wall of the housing 1 and at the lower end of the bracket 3. A temperature sensor 25 is fixedly installed on the lower wall inside the housing 1. Both the heating element 24 and the temperature sensor 25 are electrically connected to the controller. This technical solution is existing technology and is not shown in the figure. A transformer 26 and an adjustment knob 27 electrically connected to the transformer 26 are fixedly installed at the lower end of the housing 1. One end of the adjustment knob 27 is electrically connected to the power supply, and the output end of the transformer 26 is electrically connected to the heating element 24. When the molecular sieve layer 4 needs to be heated, electrical energy is supplied to the heating element 24 through the transformer 26 and the adjustment knob 27, so that the heating element 24 heats the molecular sieve layer 4 inside the housing 1. At the same time, the temperature sensor 25 monitors the temperature inside the housing 1 in real time and transmits the temperature signal to the controller. The controller displays the measured temperature signal, so that the user can change the voltage on the heating element 24 by rotating the adjustment knob 27, and the temperature of the heating element 24 will drop or rise accordingly, so as to control the temperature inside the housing 1.

[0039] See Figure 3 , Figure 4 and Figure 6 The auxiliary sealing mechanism includes magnets 9 symmetrically installed on the outside of the bracket 3. The bracket 3 is connected to a metal strip 8 via the magnets 9. The upper end of the metal strip 8 is fixedly connected to the lower end of the molecular sieve layer 4. A guide mechanism is provided at the upper end of the magnets 9. When the molecular sieve layer 4 is placed on the bracket 3, the magnetic field of the magnets 9 attracts the metal strip 8 on the molecular sieve layer 4. At the same time, due to the structural characteristics of the upper end of the metal strip 8 being fixedly connected to the lower end of the molecular sieve layer 4, the molecular sieve layer 4 is subjected to a downward pull force by the metal strip 8, which facilitates the molecular sieve layer 4 to be tightly attracted to the bracket 3. This alleviates the centrifugal force experienced by the molecular sieve layer 4 when it rotates inside the box 1, and reduces the occurrence of some gas not being filtered due to the molecular sieve layer 4 deviating from the main axis 2 under centrifugal force. Furthermore, the molecular sieve layer 4 is attracted by the magnets 9 during installation, which facilitates the installation of the molecular sieve layer 4.

[0040] See Figure 3 and Figure 6 The protective mechanism includes a frame 12 fixedly installed on the outside of the molecular sieve layer 4. Two wedges 13 are symmetrically arranged at the lower end of the frame 12, and the end of the metal strip 8 away from the main shaft 2 is fixedly connected to one end of the wedge 13. When the baffle 7 is inserted into the gap between the bracket 3 and the molecular sieve layer 4, the slope structure at one end of the baffle 7 allows the slope of the baffle 7 to be inserted into the gap between the bracket 3 and the molecular sieve layer 4. The wedge 13 increases the opening of the gap, so that the baffle 7 applies an upward thrust to the wedge 13. The wedge 13 drives the molecular sieve layer 4, the metal strip 8 and the frame 12 to move upward, so that the molecular sieve layer 4 is separated from the bracket 3, making it easy to replace the molecular sieve layer 4 on the bracket 3.

[0041] See Figure 1 and Figure 6 A sealing gasket 14 is fixedly installed at one end of the frame 12 near the main shaft 2. A silicone strip 15 is fixedly installed inside the through hole 6. When the baffle 7 enters the through hole 6, the baffle 7 squeezes the silicone strip 15, causing the silicone strip 15 to deform and increase the elastic potential energy inside the silicone strip 15. Conversely, when the baffle 7 leaves the through hole 6, the silicone strip 15 deforms and fills the entire through hole 6 through the elastic potential energy of the silicone strip 15, thus sealing the through hole 6. Furthermore, the silicone strip 15 has an "U" shape, which facilitates the insertion of the baffle 7 into the through hole 6.

[0042] See Figure 5 , Figure 6 and Figure 7 The guiding mechanism includes a V-shaped groove 16 on the upper end of the magnet 9, and a metal disc 17 fixedly installed at the lower end of the baffle 7 on one side of the sealing gasket 14. When the baffle 7 enters the housing 1 along the bracket 3, the magnet 9 applies an attractive force to the metal disc 17, so that the lower end of the baffle 7 can fit tightly against the bracket 3, reducing the occurrence of air bypassing the molecular sieve layer 4 through the gap between the bracket 3 and the baffle 7. At the same time, the V-shaped groove 16 reduces the contact area between the bracket 3 and the baffle 7, thereby alleviating the friction between the bracket 3 and the baffle 7, and further facilitating the insertion of the baffle 7 to facilitate the replacement of the molecular sieve layer 4.

[0043] See Figure 1 A ring 18 is fixedly installed at the end of the baffle 7 away from the main shaft 2. A support ring 19, which is vertically opposite to the ring 18, is fixedly installed on the outside of the housing 1. A pin 20 is inserted between the inside of the ring 18 and the inside of the support ring 19. When the baffle 7 is inserted into the through hole 6, the ring 18 is moved by the baffle 7 until the ring 18 is vertically opposite the support ring 19. Then the pin 20 is inserted into the inside of the ring 18 and the support ring 19, so that the pin 20 strengthens the connection between the ring 18 and the support ring 19, making it easy to lock the ring 18 in this position. This facilitates locking the baffle 7 when replacing the molecular sieve layer 4, saves the operation steps of manually pressing the baffle 7, and further facilitates the replacement of the molecular sieve layer 4.

[0044] Working principle: During operation, the main shaft 2 is rotated, causing the bracket 3 and molecular sieve layer 4 to rotate at a specified angle until one molecular sieve layer 4 is aligned and blocks the through hole 6. Then, the baffle 7 is inserted into the through hole 6 and moves along the gap between the bracket 3 and the molecular sieve layer 4 until one end of the baffle 7 presses against the outside of the main shaft 2 to lift the molecular sieve layer 4 on the bracket 3. Then, one molecular sieve layer 4 is taken out from the box 1 through the opening at the upper end of the replacement chamber 5. At the same time, the baffle 7 blocks the gap between two adjacent brackets 3 due to the lack of molecular sieve layer 4, making it convenient to replace one molecular sieve layer 4 individually. Thus, the molecular sieve layer 4 that has not been replaced can still perform the oxygen generation step, saving the operation steps of stopping the molecular sieve oxygen generator. Finally, the baffle 7 in the through hole 6 is taken out and the molecular sieve layer 4 is pressed down, and one end of the molecular sieve layer 4 blocks the through hole 6.

[0045] When the molecular sieve layer 4 is placed on the bracket 3, the magnetic field of the magnet 9 attracts the metal strip 8 on the molecular sieve layer 4. At the same time, due to the structural characteristic that the upper end of the metal strip 8 is fixedly connected to the lower end of the molecular sieve layer 4, the molecular sieve layer 4 is subjected to a downward pull force by the metal strip 8, which facilitates the molecular sieve layer 4 to be firmly attracted to the bracket 3. This alleviates the centrifugal force on the molecular sieve layer 4 when it rotates in the box 1, and reduces the possibility of the molecular sieve layer 4 deviating from the main axis 2 under centrifugal force, resulting in some gas not being filtered. Furthermore, the molecular sieve layer 4 is attracted by the magnet 9 during installation, which facilitates the installation of the molecular sieve layer 4.

[0046] When the baffle 7 is inserted into the gap between the bracket 3 and the molecular sieve layer 4, the inclined structure at one end of the baffle 7 allows the baffle 7 to be inserted into the gap between the bracket 3 and the molecular sieve layer 4. The wedge block 13 increases the opening of the gap, so that the baffle 7 applies an upward thrust to the wedge block 13. The wedge block 13 drives the molecular sieve layer 4, the metal strip 8 and the frame 12 to move upward, so that the molecular sieve layer 4 is separated from the bracket 3, making it easier to replace the molecular sieve layer 4 on the bracket 3.

[0047] When the baffle 7 enters the housing 1 along the bracket 3, the magnet 9 applies an attractive force to the metal disc 17, so that the lower end of the baffle 7 can fit tightly against the bracket 3, reducing the possibility of air bypassing the molecular sieve layer 4 through the gap between the bracket 3 and the baffle 7. At the same time, the V-groove 16 reduces the contact area between the bracket 3 and the baffle 7, thereby alleviating the friction between the bracket 3 and the baffle 7 and further facilitating the insertion of the baffle 7 to facilitate the replacement of the molecular sieve layer 4.

[0048] When the baffle 7 is inserted into the through hole 6, the baffle 7 drives the ring 18 to move until the ring 18 is vertically aligned with the support ring 19. Then, the pin 20 is inserted into the inside of the ring 18 and the support ring 19, so that the pin 20 strengthens the connection between the ring 18 and the support ring 19, making it easier to lock the ring 18 in this position. This facilitates locking the baffle 7 when replacing the molecular sieve layer 4, saving the operation steps of manually pressing the baffle 7, and further facilitating the replacement of the molecular sieve layer 4.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A molecular sieve oxygen generator, comprising a housing (1), characterized in that: A main shaft (2) is rotatably mounted in the middle of the box (1). An air supply mechanism is provided at the upper end of the box (1). Multiple brackets (3) are arranged in a circumferential array on the outer side of the main shaft (2). An auxiliary sealing mechanism is provided on the outer side of the brackets (3). A molecular sieve layer (4) is assembled between two brackets (3). A protective mechanism is provided on the molecular sieve layer (4). A replacement chamber (5) is opened inside the box (1). A through hole (6) is opened on the side of the replacement chamber (5) away from the main shaft (2). A baffle (7) is inserted into the through hole (6).

2. The molecular sieve oxygen generator according to claim 1, characterized in that: The auxiliary sealing mechanism includes magnets (9) symmetrically installed on the outside of the bracket (3). The bracket (3) is connected to a metal strip (8) through the magnet (9). The upper end of the metal strip (8) is fixedly connected to the lower end of the molecular sieve layer (4). A guide mechanism is provided at the upper end of the magnet (9).

3. The molecular sieve oxygen generator according to claim 1, characterized in that: The upper end of the replacement chamber (5) is hinged with a sealing cover (10), and a handle (11) is fixedly installed on the outer wall of the sealing cover (10). A crank handle (28) is fixedly installed on one end of the main shaft (2).

4. The molecular sieve oxygen generator according to claim 2, characterized in that: The protective mechanism includes a frame (12) fixedly installed on the outside of the molecular sieve layer (4). Two wedges (13) are symmetrically arranged at the lower end of the frame (12), and the end of the metal strip (8) away from the main shaft (2) is fixedly connected to one end of the wedge (13).

5. A molecular sieve oxygen generator according to claim 4, characterized in that: A sealing gasket (14) is fixedly installed at one end of the frame (12) near the main shaft (2), and a silicone strip (15) is fixedly installed inside the through hole (6).

6. The molecular sieve oxygen generator according to claim 5, characterized in that: The guiding mechanism includes a V-shaped groove (16) formed on the upper end of the magnet (9), and a metal disc (17) is fixedly installed on the lower end of the baffle (7) and on one side of the sealing gasket (14).

7. The molecular sieve oxygen generator according to claim 1, characterized in that: A ring (18) is fixedly installed at one end of the baffle (7) away from the main shaft (2). A support ring (19) is fixedly installed on the outside of the housing (1) and is vertically opposite to the ring (18). A pin (20) is inserted between the inside of the ring (18) and the inside of the support ring (19).

8. A molecular sieve oxygen generator according to claim 1, characterized in that: The air supply mechanism includes an air inlet pipe (21) mounted on the upper end of the housing (1), an air pump (22) is fixedly connected to the outside of the air inlet pipe (21), and a filter box (23) is fixedly installed at the end of the air inlet pipe (21) away from the housing (1).

9. A molecular sieve oxygen generator according to claim 1, characterized in that: A heating element (24) is fixedly installed on the inner wall of the housing (1) and at the lower end of the bracket (3). A temperature sensor (25) is fixedly installed on the lower wall inside the housing (1). A transformer (26) and an adjustment knob (27) electrically connected to the transformer (26) are fixedly installed at the lower end of the housing (1). The output end of the transformer (26) is electrically connected to the heating element (24).

Images