Fabricated molecular sieve structure

Abstract

The utility model provides an assembly type molecular sieve structure, which belongs to the field of oxygen generators and comprises a support main body and a molecular sieve drum, and the support main body is provided with a first air inlet joint, a first oxygen joint and a guide wedging surface. A second gas inlet joint, a second oxygen joint and a guide matching surface matched with the guide wedging surface are arranged on an upper sieve cover of the molecular sieve cylinder; the second air inlet connector and the second oxygen connector are correspondingly in butt joint with the first air inlet connector and the first oxygen connector in the mode that the guide matching face and the guide wedging face are matched and guided, the second air inlet connector is communicated with an air inlet of the upper screen cover, and the second oxygen connector is communicated with an oxygen outlet of a lower screen base of the molecular sieve cylinder. According to the molecular sieve barrel, the assembling component can be quickly disassembled and assembled, the molecular sieve barrel can be more conveniently replaced, the maintenance cost of a user is reduced, the service life of equipment is prolonged, and the use convenience and flexibility are improved.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen generators, and in particular relates to an assembled molecular sieve structure. Background Technology

[0002] Molecular sieves are consumables in oxygen concentrators. Therefore, after a certain period of use, the molecular sieve cylinders need to be replaced to ensure normal oxygen supply. In existing traditional oxygen concentrators, the molecular sieve cylinders are difficult to disassemble and often need to be returned to the factory for replacement, which increases labor costs.

[0003] For example, Chinese patent CN 221788737 U discloses an oxygen concentrator layout structure, including a rear shell, a front shell, an upper shell, a base, a compressor, a compressor cover, an intake silencer, an exhaust silencer, a molecular sieve cylinder, a fixed bracket, and an oxygen tank. The rear shell, front shell, upper shell, and base are combined to form the outer shell of the oxygen concentrator. The rear shell and compressor cover are fixedly mounted on the base. The top of the compressor cover is equipped with a fixed bracket, a cooling fan, and a molecular sieve cylinder. A cooling fan is located below the fixed bracket. An oxygen tank, an exhaust silencer, and a two-position four-way valve are located above the fixed bracket. The molecular sieve cylinder is fixed to the side plate of the fixed bracket via a quick-release structure. The compressor and exhaust silencer are located inside the compressor cover, and an intake silencer is located on the side of the compressor cover. An air inlet is located on the rear shell, and an intake air path guide is covered on the inner side of the rear shell corresponding to the air inlet. A humidification bottle is located on the upper shell. In this design, the molecular sieve cylinder is complex to connect with other structures and is not convenient for later disassembly and replacement. This requires consumers to pack the entire oxygen concentrator and return it to the factory for professional operators to replace the molecular sieve cylinder.

[0004] It should be noted that the information disclosed in the background section of this utility model is intended only to enhance the understanding of the general background of this utility model, and should not be regarded as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a molecular sieve structure for an oxygen generator that is easy to assemble, modular, and disassemble.

[0006] To address the aforementioned objective, this utility model first provides an assembled molecular sieve structure, comprising:

[0007] The support body is provided with a first air inlet connector, a first oxygen connector and a guide wedge surface;

[0008] A molecular sieve cylinder has a second air inlet connector, a second oxygen connector, and a guide mating surface that mates with the guide wedge surface on its upper sieve cover. The second air inlet connector and the second oxygen connector are respectively connected to the first air inlet connector and the first oxygen connector by means of the guide mating surface and the guide wedge surface. The second air inlet connector is connected to the air inlet of the upper sieve cover, and the second oxygen connector is connected to the oxygen outlet of the lower sieve seat of the molecular sieve cylinder.

[0009] Preferably, the main body of the support is provided with a first integrated docking support, and the first air inlet connector and the first oxygen connector are provided on the first integrated docking support; the upper screen cover is provided with a second integrated docking support, and the second air inlet connector and the second oxygen connector are provided on the second integrated docking support.

[0010] Preferably, the upper sieve cover is also provided with a gas guide extension pipe, one end of which is connected to the second oxygen connector, and the other end is suspended on the side of the molecular sieve cylinder and connected to the oxygen outlet of the lower sieve seat through the gas guide pipe.

[0011] Preferably, the guide mating surface is formed on the side of the air guide extension tube.

[0012] Preferably, the support body is also provided with a positioning slot for the upper screen cover to be inserted and positioned.

[0013] Preferably, the support body includes a first support section with a relatively higher elevation, a second support section with a relatively lower elevation, and a connecting section connecting the first support section and the second support section; at least one accommodating space for accommodating the molecular sieve cylinder is formed below the first support section, the first integrated docking support is disposed on the first support section, and the positioning slot is formed at the corner between the first support section and the connecting section.

[0014] Preferably, the molecular sieve cylinder further includes a molecular sieve shell, and both the upper sieve cover and the lower sieve seat are provided with connecting bolt holes that are correspondingly connected to the molecular sieve shell.

[0015] Preferably, the molecular sieve shell includes a first shell, a second shell, and an air inlet grille arranged side by side; the air inlet grille is assembled between the first shell and the second shell, and an air inlet filter is provided on the outer side and / or inner side of the air inlet grille.

[0016] Preferably, the first integrated docking support is provided with a first mounting hole, the second integrated docking support is provided with a second mounting hole, and the molecular sieve shell is provided with a third mounting hole. The first mounting hole, the second mounting hole and the third mounting hole are positioned opposite each other and are connected by a threaded connector through hole.

[0017] Preferably, the air intake grille is provided with a lug plate, and the third mounting hole is provided on the lug plate.

[0018] The technical effects achieved by the above-mentioned technical solution of this utility model are derived from one or more of the following combinations:

[0019] In this design, the molecular sieve cylinder and the support body cooperate with each other through a guide wedge surface and a guide mating surface, so that the second air inlet connector and the second oxygen connector of the support body are respectively inserted into the first air inlet connector and the first oxygen connector on the molecular sieve; thereby enabling quick assembly and disassembly of the components, making it easier to replace the molecular sieve components, reducing the user's maintenance costs, extending the service life of the equipment, and improving the convenience and flexibility of use.

[0020] The modular design separates the molecular sieve from other components, allowing the molecular sieve to be replaced individually after it reaches the end of its service life, without the need to scrap the entire equipment.

[0021] By designing the wedge-shaped surface and integrated docking support on the main body of the support, the molecular sieve can be quickly aligned and inserted into the main body of the support, thereby achieving docking. The positioning slot on the mounting bracket ensures a stable connection.

[0022] Holes are made at corresponding positions on the first and second integrated docking supports, and the molecular sieve shell is assembled and installed with screws through the holes, which improves the stability of the assembly. With this modular design, the molecular sieve can be replaced easily and quickly, thereby improving the efficiency and convenience of the oxygen generator. Attached Figure Description

[0023] Figure 1 This diagram illustrates the structure of the assembled molecular sieve in this invention.

[0024] Figure 2 This diagram illustrates the installation of the gas distribution valve in the assembled molecular sieve structure of this invention.

[0025] Figure 3 This diagram illustrates a structural disassembly view of the assembled molecular sieve structure in this invention.

[0026] Figure 4 This is a structural disassembly diagram illustrating another perspective of the assembled molecular sieve structure in this utility model.

[0027] Figure 5 This is a structural disassembly diagram illustrating another perspective of the assembled molecular sieve structure in this utility model.

[0028] Figure 6 This diagram illustrates the structure of the molecular sieve shell in this invention.

[0029] Figure 7This diagram illustrates the assembly of the assembled molecular sieve structure and the main body of the oxygen generator in this invention.

[0030] The components include: 1. Support body; 10. Guide wedge surface; 110. Positioning slot; 111. First support section; 112. Second support section; 113. Connecting section; 12. First integrated docking support; 120. First mounting hole; 121. First air inlet connector; 1211. First air inlet adapter; 1212. First air inlet mating port; 122. First oxygen connector; 1221. First oxygen outlet adapter; 1222. First oxygen outlet mating port; 21. Molecular sieve cylinder; 211. Upper sieve cover; 2111. First ear plate; 212. Lower sieve seat; 213. Pressure equalizing valve; 22. Second integrated docking support; 220. Second mounting hole; 221. Second air inlet connector; 222. Second oxygen connector; 23. Gas guide extension pipe; 230. Guide mating surface; 24. Molecular sieve shell; 241. First housing; 2410. First housing assembly hole; 2411. First vertical side panel; 2412. First base plate; 242. Second housing; 2420. Second housing assembly hole; 2421. Second ear plate; 243. Air intake grille; 2430. Air intake grille assembly hole; 244. Ear plate; 2440. Third mounting hole; 3. Air compression assembly; 4. Oxygen storage assembly; 5. Gas distribution valve. Detailed Implementation

[0031] The following description is provided to enable those skilled in the art to implement and use the present invention and to incorporate it into specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the present invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0032] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that practice of the present invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without detailed representation to avoid obscuring the present invention.

[0033] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.

[0034] Note that, where used, the markings left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between different parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0038] Please see Figures 1-7 This embodiment provides a prefabricated molecular sieve structure, which includes a support body 1 and a molecular sieve cylinder 21. The support body 1 is installed inside the oxygen generator body, and the molecular sieve cylinder 21 is integrally connected to the support body 1 for gas exchange. The structural support of the molecular sieve cylinder 21 is assembled with the oxygen generator body using screws. The support body 1 is provided with a first air inlet connector 121, a first oxygen connector 122, and a guide wedge surface 10. The molecular sieve cylinder 21 is provided with a second air inlet connector 221, a second oxygen connector 222, and a guide mating surface 230 that mates with the guide wedge surface 10. The second air inlet connector 221 and the second oxygen connector 222 are respectively connected to the first air inlet connector 121 and the first oxygen connector 122 through the guide mating surface 230 and the guide wedge surface 10. The second air inlet connector 221 is connected to the air inlet of the upper sieve cover 211, and the second oxygen connector 222 is connected to the oxygen outlet of the lower sieve seat 213 of the molecular sieve cylinder 21.

[0039] For specific details, please refer to... Figure 1 and Figure 5 The support body 11 is provided with a first integrated docking support 12. The support body 11 is located on the oxygen generator body, and a guide wedge surface 10 is provided on the outer surface of the support body 11. The first integrated docking support 12 is located on the support body 11 near the guide wedge surface 10. The first integrated docking support 12 integrates a first air inlet connector 121 and a first oxygen connector 122. The first air inlet connector 121 has a first air inlet adapter 1211 and a first air inlet mating interface 1212 that are connected. The first oxygen connector 122 has a first oxygen outlet adapter 1221 and a first oxygen outlet mating interface 1222 that are connected. The first air inlet adapter 1211 and the first oxygen outlet adapter 1221 are respectively connected to the air compression assembly 3 and the oxygen storage assembly 4 of the oxygen generator body. The air compression assembly 3 and the oxygen storage assembly 4 are some functional components of the oxygen generator body. Based on the above description of the oxygen generator principle, they will not be described in detail here, and those skilled in the art should be able to understand them.

[0040] Specifically, the first air inlet port 1211 is connected to the air compression assembly 3 (i.e., air compressor) of the oxygen generator body through the gas distribution valve 5; the first oxygen outlet port 1221 is connected to the oxygen storage assembly 4 (i.e., oxygen storage tank) through the oxygen flow control valve and the oxygen concentration sensor.

[0041] Furthermore, please combine Figure 2 and Figure 3 The upper sieve cover 211 is also provided with a second integrated docking support 22. The second integrated docking support 22 is located on the top of the upper sieve cover 211, and the second integrated docking support 22 is provided with a second air inlet connector 221 and a second oxygen connector 222. The second air inlet connector 221 and the second oxygen connector 222 of the second integrated docking support 22 are respectively inserted into the first air inlet connector 121 and the first oxygen connector 122. The air inlet and oxygen outlet of the molecular sieve cylinder 21 are connected to the second air inlet connector 221 and the second oxygen connector 222 through the second integrated docking support 22. Specifically, the second air inlet connector 221 and the second oxygen connector 222 of the second integrated docking support 22 are respectively inserted into the first air inlet port 1212 and the first oxygen outlet port 1222.

[0042] In this embodiment, based on the principle of alternating operation of the molecular sieve cylinders 21 in the molecular sieve oxygen generator, the working principle of the two molecular sieve cylinders 21 will not be described in detail here, as this should be basic common knowledge for those skilled in the art.

[0043] For further structural protection, please combine Figure 5 and Figure 6The molecular sieve cylinder 21 also includes a molecular sieve shell 24, which is installed on the side of the molecular sieve shell 24 facing the support body 1. Both the upper sieve cover 211 and the lower sieve seat 213 are provided with connecting bolt holes corresponding to the molecular sieve shell 24. Further, the molecular sieve shell 24 includes a first shell 241, a second shell 242, and an air inlet grille 243 arranged side-by-side; the air inlet grille 243 is assembled between the first shell 241 and the second shell 242, and an air inlet filter is provided on the outer and / or inner sides of the air inlet grille 243. It should be noted that "and / or" here is interpreted as the air inlet grille 243 having an air inlet filter on one side or on both sides. Specifically, the air inlet grille 243 has air inlet grille mounting holes 2430 on both sides, while the first shell 241 has corresponding first shell mounting holes 2410, and the second shell 242 has corresponding second shell mounting holes 2420. The first housing 241 and the second housing 242 are installed on both sides of the air intake grille 243 by means of screw through holes.

[0044] Furthermore, the first housing 241 includes a first vertical side panel 2411 and a first bottom plate 2412, with the first vertical side panel 2411 disposed on the first bottom plate 2412; the second housing 242 is implemented as a second vertical side panel; the first vertical side panel 2411, the second vertical side panel, and the air intake grille 243 form a U-shaped semi-enclosed structure, which, together with the first bottom plate 2412, forms a fully enclosed structure with the outer shell of the oxygen generator body. Therefore, the first bottom plate 2412 serves as a supporting member for the upper sieve cover 211, the lower sieve seat 212, and the molecular sieve cylinder 21, providing basic support.

[0045] Furthermore, the first housing 241 and the second housing 242 are screwed together with the upper screen cover 211 or the lower screen seat 212 via the first ear plate 2111, and the aforementioned bolt holes are implemented as bolt holes of the first ear plate 2111. To improve the stability of the structure, when the second housing 242 is implemented as the second vertical side panel, it is screwed together with the first base plate 2412 via the second ear plate 2421.

[0046] The main body 1 of the support integrates the oxygen supply and output functions of the oxygen generator body and is inserted into the second integrated docking support 22 of the molecular sieve cylinder 21. The main body 1 provides structural support for the first integrated docking support 12 on the oxygen generator body and is fixed inside the oxygen generator body. Furthermore, in order to improve the space utilization, the main body 11 includes a first support section 111 with a relatively higher elevation, a second support section 112 with a relatively lower elevation, and a connecting section 113 connecting the first support section 111 and the second support section 112; at least a space for accommodating the molecular sieve cylinder 21 is formed below the first support section 111, and the first integrated docking support 12 is disposed on the first support section 111. Furthermore, the first support segment 111 and the second support segment 112 are arranged horizontally, and the connecting segment 113 is arranged vertically and connected between the first support segment 111 and the second support segment 112. The connecting segment 113 forms a matching concave surface facing the molecular sieve cylinder 21 to allow the molecular sieve cylinder 21 to fit, which provides stability for the fit and maximizes the use of space.

[0047] To facilitate the docking and positioning of the molecular sieve cylinder 21, a positioning slot 110 is provided at the corner where the first support section 111 and the connecting section 113 are connected, for the upper sieve cover 211 to be inserted and positioned.

[0048] To improve the stability of the installation between the molecular sieve cylinder 21 and the support body 1, please refer to... Figure 4 and Figure 5 A first mounting hole 120 is provided on the first integrated docking support 12, a second mounting hole 220 is provided on the second integrated docking support 22, and a third mounting hole 2440 is provided on the molecular sieve shell 24. Furthermore, an ear plate 244 is provided on the air intake grille 243, and the third mounting hole 2440 is located on the ear plate 244. The first mounting hole 120, the second mounting hole 220, and the third mounting hole 2440 are positioned opposite each other and connected by a threaded connector (e.g., ...). Figure 4 and Figure 5 The red dotted line in the middle indicates the position, i.e., the connection direction of the threaded connector. Preferably, the threaded connector is a screw, with a first mounting hole 120, a second mounting hole 220, a third mounting hole 2440, and a screw forming a group. In this embodiment, it is preferable to arrange two groups side by side (two red dotted lines).

[0049] Furthermore, such as Figures 1-3As shown, for the oxygen inlet and outlet structure of the molecular sieve cylinder 21, the second oxygen connector 222 is integrated into the upper sieve cover 211 and is connected to the oxygen outlet of the lower sieve seat 212 through the gas guide extension pipe 23. Specifically, the upper sieve cover 211 is provided with the gas guide extension pipe 23, and the oxygen outlet of the molecular sieve cylinder 21 is connected to the second oxygen connector 222 through the gas guide extension pipe 23. The connector of the gas guide extension pipe 23 is connected to the bottom oxygen supply channel of the molecular sieve cylinder 21 through a gas guide pipe (not shown). Preferably, the gas guide pipe is a flexible PU material hose. Furthermore, a pressure equalization valve 213 connected to the oxygen outlet of the molecular sieve cylinder 21 is provided below the lower sieve seat 212, and the pressure equalization valve 213 is connected to the gas guide extension pipe 23 through the gas guide pipe.

[0050] Furthermore, to facilitate the installation of the molecular sieve cylinder 21 with the oxygen generator body, the guide wedge surface 10 described above in this embodiment is located on the first support section 111 facing the upper sieve cover 211. The guide mating surface can be implemented in several different ways, such as being located on the upper sieve cover 211 or formed on the first integrated docking support 12. As a preferred embodiment, the guide mating surface 230 is located on the upper sieve cover 211, on the gas guide extension pipe 23 facing the guide wedge surface 10. Preferably, both the guide wedge surface 10 and the guide mating surface 230 are inclined surfaces, which cooperate to limit and stabilize the horizontal position of the molecular sieve cylinder 21.

[0051] It should be noted that the accompanying drawings of this embodiment omit the structure of the flexible tubing between the connectors for ease of illustration; however, those skilled in the art should be able to discern the gas path based on the connector locations. For details, please refer to... Figure 5 Compressed air is introduced into the air compression assembly 3 of the oxygen generator body. The air is distributed through the gas distribution valve 5 and enters through the first integrated docking support 12 on the support body 1. It enters through the first air intake adapter 1211 of the first air intake connector 121, then through the second air intake connector 221 into the second integrated docking support 22, and then through the upper screen cover 211 into the molecular sieve cylinder 21 for filtration. The obtained oxygen is pressure equalized by the bottom equalizing valve 213, and then enters the second integrated docking support 22 through the air guide pipe and the air guide extension pipe 23. It connects to the first oxygen connector 122 through the second oxygen connector 222, and then enters the oxygen storage assembly 4.

[0052] The beneficial effects of this embodiment:

[0053] In this design, the molecular sieve cylinder and the support body cooperate with each other through a guide wedge surface and a guide mating surface, so that the second air inlet connector and the second oxygen connector of the support body are respectively inserted into the first air inlet connector and the first oxygen connector on the molecular sieve cylinder; thereby enabling quick assembly and disassembly of the components, making it easier to replace the molecular sieve components, reducing the user's maintenance costs, extending the service life of the equipment, and improving the convenience and flexibility of use.

[0054] The modular design separates the molecular sieve cylinder from other components, allowing the molecular sieve cylinder to be replaced individually after it reaches the end of its service life, without the need to scrap the entire equipment.

[0055] By designing the wedge-shaped surface and integrated docking support on the main body of the support, the molecular sieve cylinder can be quickly aligned and inserted into the main body of the support, thereby achieving docking. The positioning slot on the mounting bracket ensures a stable connection.

[0056] Holes are made at corresponding positions on the first and second integrated docking supports, and the molecular sieve shell is assembled and installed with screws through the holes, which improves the stability of the assembly. With this modular design, the molecular sieve cylinder can be easily and quickly replaced, thereby improving the efficiency and convenience of the oxygen generator.

[0057] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A prefabricated molecular sieve structure, characterized in that, include: The support body is provided with a first air inlet connector, a first oxygen connector and a guide wedge surface; A molecular sieve cylinder has a second air inlet connector, a second oxygen connector, and a guide mating surface that mates with the guide wedge surface on its upper sieve cover. The second air inlet connector and the second oxygen connector are respectively connected to the first air inlet connector and the first oxygen connector by means of the guide mating surface and the guide wedge surface. The second air inlet connector is connected to the air inlet of the upper sieve cover, and the second oxygen connector is connected to the oxygen outlet of the lower sieve seat of the molecular sieve cylinder.

2. The assembled molecular sieve structure as described in claim 1, characterized in that, The main body of the support is provided with a first integrated docking support, and the first air inlet connector and the first oxygen connector are provided on the first integrated docking support; the upper screen cover is provided with a second integrated docking support, and the second air inlet connector and the second oxygen connector are provided on the second integrated docking support.

3. The assembled molecular sieve structure as described in claim 1 or 2, characterized in that, The upper sieve cover is also provided with a gas guide extension pipe. One end of the gas guide extension pipe is connected to the second oxygen connector, and the other end is suspended on the side of the molecular sieve cylinder and connected to the oxygen outlet of the lower sieve seat through the gas guide pipe.

4. The assembled molecular sieve structure as described in claim 3, characterized in that, The guide mating surface is formed on the side of the air guide extension tube.

5. The assembled molecular sieve structure as described in claim 2, characterized in that, The main body of the support is also provided with a positioning slot for the upper screen cover to be inserted and positioned.

6. The assembled molecular sieve structure as described in claim 5, characterized in that, The support body includes a first support section with a relatively higher elevation, a second support section with a relatively lower elevation, and a connecting section connecting the first support section and the second support section; at least one accommodating space for accommodating the molecular sieve cylinder is formed below the first support section, the first integrated docking support is disposed on the first support section, and the positioning slot is formed at the corner between the first support section and the connecting section.

7. The assembled molecular sieve structure as described in claim 2, characterized in that, The molecular sieve cylinder also includes a molecular sieve shell, and both the upper sieve cover and the lower sieve seat are provided with connecting bolt holes that are connected to the molecular sieve shell.

8. The assembled molecular sieve structure as described in claim 7, characterized in that, The molecular sieve shell includes a first shell, a second shell, and an air inlet grille arranged side by side; the air inlet grille is assembled between the first shell and the second shell, and an air inlet filter is provided on the outer side and / or the inner side of the air inlet grille.

9. The assembled molecular sieve structure as described in claim 8, characterized in that, The first integrated docking support is provided with a first mounting hole, the second integrated docking support is provided with a second mounting hole, and the molecular sieve shell is provided with a third mounting hole. The first mounting hole, the second mounting hole and the third mounting hole are positioned opposite each other and are connected by a threaded connector through hole.

10. The assembled molecular sieve structure as described in claim 9, characterized in that, The air intake grille is provided with a lug plate, and the third mounting hole is provided on the lug plate.

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