Molecular sieve oxygen generator

Abstract

The utility model discloses a molecular sieve oxygen generator, which comprises a main bracket, the molecular sieve module is detachably mounted on the main bracket, and the buckle structure is used for locking the molecular sieve module on the main bracket in a clamping manner; the buckle structure is provided with a clamping claw which is arranged on the molecular sieve module and extends along the mounting direction of the molecular sieve module, a bayonet which is matched and clamped with the clamping claw is formed in the main bracket, and the main bracket is provided with a button which is used for releasing the clamping state of the clamping claw and the bayonet; and the assembling and disassembling direction of the molecular sieve module is parallel to the moving direction of the button when the button is released from clamping. By arranging the clamping claws extending in the mounting direction of the molecular sieve module on the molecular sieve module and arranging the bayonets matched with the clamping claws on the main bracket, when the clamping claws are clamped with the bayonets, the molecular sieve module can be effectively limited in multiple directions, so that the molecular sieve module is ensured not to displace or loosen due to factors such as vibration in the running process of the oxygen generator, and the service life of the oxygen generator is prolonged. Therefore, the normal and stable operation of the oxygen generator is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen generator technology, specifically relating to a molecular sieve oxygen generator. Background Technology

[0002] A molecular sieve oxygen concentrator is a device that extracts oxygen from the air based on pressure swing adsorption (PSA) technology. It utilizes the physical adsorption and desorption of molecular sieves. Molecular sieves are filled inside the oxygen concentrator's molecular sieve tank. Under pressure, nitrogen in the air is adsorbed, while the unadsorbed oxygen is collected and purified to become high-purity oxygen. Specifically, outside air is filtered before entering the air compressor, and then passes through a switching valve into the molecular sieve tank. Inside the molecular sieve tank, nitrogen is adsorbed by the molecular sieves, and oxygen accumulates at the top of the adsorption tower before entering the oxygen storage tank. The finished gas is then filtered through a pressure regulator and a dust and bacteria filter to obtain qualified medical oxygen. Typically, an oxygen concentrator has two molecular sieve tanks, which are alternately pressurized and depressurized using a switching valve, allowing the two tanks to operate in a cycle, thus achieving continuous oxygen supply.

[0003] The molecular sieve tank is one of the core components of an oxygen concentrator. Currently, when the molecular sieve fails to function properly, users have to replace the entire oxygen concentrator; therefore, user access to the oxygen concentrator is limited, and operating costs are high. Especially with technological advancements and changing market demands, oxygen concentrators are becoming increasingly smaller. However, the service life of the molecular sieves in smaller oxygen concentrators is significantly shorter than that of traditional large oxygen concentrators. This necessitates replacing the entire molecular sieve tank when the molecular sieve reaches the end of its service life. Due to the limitations of the traditional molecular sieve tank structure, replacing the molecular sieve tank is relatively complicated, requiring opening the oxygen concentrator casing and disconnecting the tubing for replacement. Only professional after-sales service personnel can perform this operation.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in the prior art by proposing a molecular sieve oxygen generator, which features a snap-fit ​​structure to ensure that the molecular sieve module is securely fixed on the main support and that the loading and unloading operation is simple.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] A molecular sieve oxygen generator, comprising:

[0008] Main support;

[0009] The molecular sieve module is detachably mounted on the main support.

[0010] A snap-fit ​​structure is used to snap and lock the molecular sieve module onto the main support;

[0011] The buckle structure has a locking claw provided on the molecular sieve module and extending along the installation direction of the molecular sieve module, a latch on the main support that matches and engages with the locking claw, and a button on the main support for releasing the locking claw and latch from engagement.

[0012] The direction of loading and unloading the molecular sieve module is parallel to the direction of movement when the button is released from engagement.

[0013] In some embodiments of this application, the engaging claw has a claw portion that engages at the latch, the claw portion having an inclined receiving surface that cooperates with the button to release the engagement, and an engaging surface that matches the end face of the edge of the latch.

[0014] In some embodiments of this application, the engaging surface is flush with the end face of the edge of the latch; the button has a button body, and a release protrusion is provided at one end of the button body near the engaging claw, the release protrusion having a force-applying end face for pushing the claw to move and matching the inclined bearing surface.

[0015] In some embodiments of this application, the engaging claw has a force-deformable lever, and a claw portion is provided at one end of the lever near the button, the claw portion protruding to one side of the lever;

[0016] In the engaged state of the locking claw and the locking jaw, the locking lever is located inside the locking jaw on the side protruding from the claw.

[0017] In some embodiments of this application, the inclined receiving surface is inclined away from the latch in the direction of movement when the button is released.

[0018] In some embodiments of this application, the molecular sieve module has two engaging claws arranged opposite each other, the two engaging claws having two claw portions close to each other; the button has a release protrusion that can engage with both claw portions simultaneously.

[0019] In some embodiments of this application, the release protrusion has a release plate located between the two claw portions, the release plate having two inclined force-applying end faces that abut against the two claw portions respectively, for pushing the claw portions to move.

[0020] In some embodiments of this application, the release protrusion further has two limiting plates located at both ends of the claw portion, the limiting plates being arranged parallel to the release plate.

[0021] In some embodiments of this application, a mounting hole for mounting the button is provided on the main bracket, and a mounting cylinder is provided extending along the edge of the mounting hole toward the engaging claw. The button has a button body, and a release protrusion is provided at one end of the button body near the engaging claw. The button body is movably located inside the mounting cylinder.

[0022] In some embodiments of this application, a limiting structure for limiting the movement direction of the button is provided between the mounting cylinder and the button body. The limiting structure has a limiting rib provided on one of the mounting cylinder and the button body, and a limiting groove provided on the other of the mounting cylinder and the button body and matching the limiting rib.

[0023] Compared with existing technologies, the advantages and positive effects of this utility model are as follows: First, it ensures a firm fixation of the molecular sieve module. By setting locking claws extending along the installation direction on the molecular sieve module and opening matching slots on the main support, the molecular sieve module can be effectively limited in multiple directions when the locking claws engage with the slots, ensuring that it will not shift or loosen due to vibration or other factors during the operation of the oxygen concentrator, thus guaranteeing the normal and stable operation of the oxygen concentrator. Second, it simplifies the loading and unloading of the molecular sieve module. A dedicated button is provided to release the locking claws from the slots, and the loading and unloading direction of the molecular sieve module is parallel to the movement direction when the button releases the locking. This allows users to easily remove the molecular sieve module simply by pressing the button, without requiring complex tools or professional maintenance skills, greatly reducing the difficulty of operation. Third, the simple structure and clear movement of the buckle structure ensure the reliability of the locking and unlocking function of the molecular sieve module during the use of the oxygen concentrator, which helps to reduce malfunctions.

[0024] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of one embodiment of a molecular sieve oxygen generator proposed in this utility model;

[0027] Figure 2 for Figure 1 A structural diagram of the disassembled molecular sieve module;

[0028] Figure 3 A structural diagram of the main support frame;

[0029] Figure 4 This is a schematic diagram of a molecular sieve module.

[0030] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0031] Figure 6 for Figure 1 A schematic diagram of a vertical sectional structure;

[0032] Figure 7 for Figure 6 A magnified structural diagram of region B in the middle;

[0033] Figure 8 for Figure 1 Another vertical sectional view of the structure;

[0034] Figure 9 for Figure 8 A magnified structural diagram of region C in the middle;

[0035] Figure 10 This is a structural diagram of a button;

[0036] Among them, 100 are oxygen concentrators;

[0037] Main bracket 10; base part 11; vertical frame part 12; bayonet 15; button 16; button body 160; limiting rib 1601; release protrusion 161; force application end face 1611; release plate 1615; limit plate 1616; mounting hole 19; mounting cylinder 191; limiting groove 1911;

[0038] Molecular sieve module 30; locking claw 35; locking rod 350; claw part 351; inclined receiving surface 3511; locking surface 3512. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the axis center of the component being "inner," and the opposite being "outer." These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0044] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0045] See Figures 1-10 This is an embodiment of a molecular sieve oxygen generator proposed in this utility model. The oxygen generator 100 includes a main support 10 and a molecular sieve module 30, which is detachably mounted on the main support 10. A snap-fit ​​structure is provided between the main support 10 and the molecular sieve module 30 to lock the molecular sieve module 30 onto the main support 10. The snap-fit ​​structure has a snap-fit ​​claw 35 on the molecular sieve module 30, a latch 15 on the main support 10 that matches the snap-fit ​​claw 35, and a button 16 on the main support 10 for releasing the snap-fit ​​claw 35 and the latch 15. The snap-fit ​​claw 35 extends along the installation direction of the molecular sieve module 30, and the installation and removal direction of the molecular sieve module 30 is parallel to the movement direction when the button 16 releases the snap-fit. Beneficial effects: First, it ensures a secure fixation of the molecular sieve module 30. By providing engaging claws 35 extending along the installation direction on the molecular sieve module 30 and matching bayonet slots 15 on the main support 10, the molecular sieve module 30 can be effectively limited in multiple directions when the engaging claws 35 engage with the bayonet slots 15, ensuring that it will not shift or loosen due to vibration or other factors during the operation of the oxygen generator 100, thus guaranteeing the normal and stable operation of the oxygen generator. Second, it simplifies the loading and unloading of the molecular sieve module 30. A dedicated button 16 is provided to release the engaging state of the engaging claws 35 and bayonet slots 15, and the loading and unloading direction of the molecular sieve module 30 is parallel to the movement direction when the button 16 releases the engaging state. This allows users to easily remove the molecular sieve module 30 by simply pressing the button 16, without requiring complex tools or professional maintenance skills, greatly reducing the difficulty of operation. Third, the buckle structure has a simple design and a clear movement mode, which ensures the reliability of the molecular sieve module 30 locking and unlocking function during the use of the oxygen generator, and helps to reduce malfunctions.

[0046] In this embodiment, the molecular sieve module 30 is installed in the vertical direction, and the button 16 is movable in the vertical direction to release the engagement. The engaging claw 35 has a claw portion 351 that engages with the bayonet 15. The claw portion 351 has an inclined receiving surface 3511 that cooperates with the button 16 to release the engagement, and an engaging surface 3512 that matches the end face of the edge of the bayonet 15. When it is necessary to disassemble the molecular sieve module 30, the button 16 is pressed, and the button 16 interacts with the inclined receiving surface 3511. Since the inclined receiving surface 3511 is inclined, when the button 16 moves in the vertical direction, it can use the guiding effect of the inclined surface to gradually push the engaging claw 35 out of the bayonet 15, thereby releasing the engagement state; making the disassembly process simple and effortless, and allowing users to easily complete the disassembly operation of the molecular sieve module 30.

[0047] In some embodiments of this application, the engaging surface 3512 is flush with the edge of the bayonet 15; the button 16 has a button body 160, and a release protrusion 161 is provided at one end of the button body 160 near the engaging claw 35. The release protrusion 161 has a force-applying end face 1611 for pushing the claw 351 to move and matching the inclined receiving surface 3511. The engaging surface 3512 is flush with the edge of the bayonet 15, so that the molecular sieve module can fit tightly with the main support on the same plane after installation, ensuring the stability of the engagement. When the button 16 is pressed, the force-applying end face 1611 can accurately act on the inclined receiving surface 3511. Since the two surfaces are matched, the force transmission is more efficient, and the claw 351 can be pushed to move in the designed direction, thereby smoothly releasing the engagement state.

[0048] In some embodiments of this application, the engaging claw 35 has a force-deformable lever 350, and a claw portion 351 is provided at the end of the lever 350 near the button 16, with the claw portion 351 protruding to one side of the lever 350. In the engaged state between the engaging claw 35 and the latch 15, the lever 350 is located within the latch 15 near the protruding side of the claw portion 351. When the molecular sieve module 30 is installed, the inclined receiving surface 3511 of the claw portion 351 first contacts the latch 15. During the process of pushing the molecular sieve module 30 towards the latch 15, the inclined receiving surface 3511 moves towards the lever 350 under the obstruction of the latch 15, and the lever 350 can bend to a certain extent, allowing the claw portion 351 to enter the latch 15. When the locking claw 35 and the jaw 15 are engaged, the locking lever 350 is located inside the jaw 15 on the side protruding from the claw 351, which helps to increase the contact area between the locking surface 3512 and the lower end surface of the jaw 15, thereby increasing the stability of the engagement.

[0049] In some embodiments of this application, the inclined receiving surface 3511 is inclined away from the latch 350 in the direction of movement when the button 16 is released. When the button 16 is pressed to release the engagement, the force-applying end face 1611 of the release protrusion 161 applies an upward force to the inclined receiving surface 3511. This force can be decomposed into a component force perpendicular to the direction of the inclined receiving surface 3511 and a component force parallel to the direction of the inclined receiving surface 3511. The perpendicular component force can effectively push the claw 351 outward, causing it to gradually disengage from the latch 15. As long as the button 16 is pressed, the force will act on the claw 351 through the inclined receiving surface 3511 in the expected manner, causing the engaging claw 35 to stably disengage from the latch 15.

[0050] In some embodiments of this application, the molecular sieve module 30 has two opposing locking claws 35, each with two protruding claw portions 351. The button 16 has a release protrusion 161 that can simultaneously engage with both claw portions 351. The molecular sieve module 30, with its two opposing locking claws 35, forms a symmetrical fixing method. When installing the molecular sieve module 30, the claw portions 351 of the two locking claws 35 engage with their corresponding latches 15, thus fixing the molecular sieve module 30 from two opposing directions, enhancing stability. The release protrusion 161 of the button 16 can simultaneously engage with both claw portions 351, greatly improving disassembly efficiency. During disassembly, the button 16 can simultaneously act on both claw portions 351, simultaneously releasing the locking state of the two locking claws 35, preventing component deformation or damage due to uneven force, making the entire installation and disassembly process smoother and more stable.

[0051] In some embodiments of this application, the release protrusion 161 has a release plate 1615 located between the two claw portions 351. The end of the release plate 1615 has two inclined force-applying end faces 1611 that abut against the two claw portions 351 respectively, for pushing the claw portions 351 to move. When the button 16 is pressed to release the engagement, the force is transmitted to the claw portions 351 through the release plate 1615. The structural design of the release plate 1615 and its inclined force-applying end faces 1611 makes the engagement between the release protrusion 161 and the claw portions 351 tighter and more stable.

[0052] In some embodiments of this application, the release protrusion 161 further includes two limiting plates 1616 located at both ends of the claw portion 351, with the limiting plates 1616 and the release plate 1615 arranged parallel to each other. During the release process, the claw portion 351 can only move within the range defined by the limiting plates 1616 and the release plate 1615. When the release protrusion 161 pushes the claw portion 351 to move and release the engagement, the limiting plates 1616 can prevent the claw portion 351 from excessively displacing due to excessive external force or other unexpected situations, ensuring that the claw portion 351 moves within a reasonable range and thus protecting the integrity of the latching structure.

[0053] In some embodiments of this application, a mounting hole 19 for mounting a button 16 is provided on the main support 10, and a mounting cylinder 191 extends along the edge of the mounting hole 19 toward the engaging claw 35. The button 16 has a button body 160, and a release protrusion 161 is provided at one end of the button body 160 near the engaging claw 35. The button body 160 is movably located within the mounting cylinder 191. When the button 16 moves during the release operation, the mounting cylinder 191 can restrict the button 16 to move only in a specific direction (i.e., the axial direction of the mounting cylinder 191), avoiding irregular movement such as offset or wobbling of the button 16. The mounting hole 19 and the mounting cylinder 191 make the connection between the button 16 and the main support 10 tighter. Through this embedded design, the entire snap-fit ​​structure is more compact in spatial layout, reducing unnecessary space occupation and facilitating the optimized layout of the internal structure of the oxygen concentrator.

[0054] In some embodiments of this application, a limiting structure for limiting the movement direction of the button 16 is provided between the mounting cylinder 191 and the button body 160. The limiting structure has a limiting groove 1911 on the mounting cylinder 191 and a limiting rib 1601 on the button body 160, with the limiting rib 1601 matching the limiting groove 1911. The matching design of the limiting groove 1911 and the limiting rib 1601 enables extremely precise control over the movement direction of the button 16. When the button 16 is pressed to release the engagement, the limiting rib 1601 can only move along the limiting groove 1911, ensuring that the button 16 moves stably in the preset direction; it also ensures that the release protrusion 161 of the button 16 can accurately act on the corresponding part of the engaging claw 35, achieving a reliable engagement and release operation.

[0055] In some embodiments of this application, the oxygen concentrator 100 includes a main support 10 and a molecular sieve module 30 detachably mounted on the main support 10. Specifically, the main support 10 has a base portion 11 and a vertical frame portion 12 disposed on the base portion 11; a first area for mounting a compressor module is formed between one side of the vertical frame portion 12 and the base portion 11, and a second area for mounting the molecular sieve module 30 is formed between the other side of the vertical frame portion 12 and the base portion 11. The molecular sieve module 30 is mounted from top to bottom into the second area. A slide rail structure is provided between the molecular sieve module 30 and the vertical frame portion 12, and a snap-fit ​​structure is provided between the molecular sieve module 30 and the base portion 11. A mounting hole 19 is opened on the lower end face of the base portion 11. Pushing the button 16 upward moves the engagement between the locking claw 35 and the locking slot 15, thereby releasing the engagement between them.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A molecular sieve oxygen generator, characterized by, The application relates to a molecular sieve module and a main support. The application comprises: a main support; a molecular sieve module which is detachably mounted on the main support, a buckle structure for buckling and locking the molecular sieve module on the main support; the buckle structure is provided with a buckling claw arranged on the molecular sieve module and extending along the mounting direction of the molecular sieve module, a buckle opening is arranged on the main support and matched with the buckling claw, and a button is arranged on the main support and used for releasing the buckling claw and the buckle opening.

2. The molecular sieve oxygen generator of claim 1, wherein, The mounting and detaching direction of the molecular sieve module is arranged in parallel with the moving direction of the button when the button releases the buckling.

3. The molecular sieve oxygen generator of claim 2, wherein, The buckling claw is provided with a claw part buckled on the buckle opening, the claw part is provided with an inclined receiving surface matched with the button and used for releasing the buckling, and a buckling surface matched with the end surface of the buckle opening edge.

4. The molecular sieve oxygen generator of claim 3, wherein, The buckling surface is arranged in flush with the end surface of the buckle opening edge; the button is provided with a button body, a releasing protrusion arranged on one end of the button body close to the buckling claw, and a force applying end surface of the releasing protrusion matched with the inclined receiving surface and used for pushing the claw part to move. The buckling claw is provided with a force deformable clamping rod, a claw part arranged on one end of the clamping rod close to the button, and the claw part protrudes to one side of the clamping rod.

5. The molecular sieve oxygen generator of claim 4, wherein, In the buckling state of the buckling claw and the buckle opening, the clamping rod is located in the buckle opening close to the protruding side of the claw part.

6. The molecular sieve oxygen generator of any one of claims 1 to 5, wherein, The inclined receiving surface is arranged in the moving direction of the button when the button releases the buckling and is inclined to the direction away from the clamping rod.

7. The molecular sieve oxygen generator of claim 6, wherein, The molecular sieve module is provided with two buckling claws arranged oppositely, the two buckling claws are provided with two claw parts close to each other, and the button is provided with a releasing protrusion matched with the two claw parts.

8. The molecular sieve oxygen generator of claim 7, wherein, The releasing protrusion is provided with a releasing plate located between the two claw parts, the releasing plate is provided with two inclined force applying end surfaces respectively abutting against the two claw parts and used for pushing the claw parts to move.

9. The molecular sieve oxygen generator of any one of claims 1 to 5, wherein, The releasing protrusion is further provided with two limiting plates respectively located at two ends of the claw parts, and the limiting plates are arranged in parallel with the releasing plate.

10. The molecular sieve oxygen generator of claim 9, wherein, A mounting hole for mounting the button is arranged on the main support, a mounting cylinder extending along the edge of the mounting hole and arranged in the direction of the buckling claw is arranged, the button is provided with a button body and a releasing protrusion arranged on one end of the button body close to the buckling claw, and the button body can be movably located in the mounting cylinder. A limiting structure for limiting the moving direction of the button is arranged between the mounting cylinder and the button body, the limiting structure is provided with a limiting rib arranged on one of the mounting cylinder and the button body and a limiting groove arranged on the other one of the mounting cylinder and the button body and matched with the limiting rib.

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