Air duct structure applied to space cabin

Abstract

This invention provides a duct structure for use in a spacecraft, comprising: a main duct and a filter duct, wherein the filter duct and the main duct are connected by a bend, and the end face of the filter duct away from the main duct faces the ground; the filter duct includes a first section and a second section, which are movably connected; the second section has an outer mesh for blocking small animals at its end away from the first section, and a filter element for blocking insects inside the second section, wherein the filter element contains a first filter screen and a second filter screen with a smaller mesh size, the second filter screen being arranged adjacent to the outer mesh, and the first filter screen being located on the side of the second filter screen away from the outer mesh. This invention utilizes different mesh sizes of filter screens to intercept different animals, preventing highly destructive animals from directly damaging the fine filter screen and preventing small animals from entering through damaged areas.

Description

Technical Field

[0001] This utility model belongs to the field of air duct structure technology, and particularly relates to an air duct structure applied to a space capsule. Background Technology

[0002] Mobile capsule homes are an innovative accommodation and commercial solution, favored for their rapid construction and easy relocation. The mobile capsule homes offered range from 18 to 20 square meters per unit, with colors customizable to customer needs and a simple yet modern design. They are suitable for various settings such as bases, commercial uses, military deployments, and tourism, serving as accommodation, shops, or hotels.

[0003] Space capsule mobile homes are typically set up in outdoor environments, so the ventilation system needs to be designed to prevent mosquitoes and animals. However, most current ventilation ducts still rely on traditional check valve structures, which are easily invaded by mosquitoes and damaged by small animals, and cannot meet the needs of space capsule mobile homes. Utility Model Content

[0004] This utility model provides a duct structure for use in a spacecraft. The utility model is implemented as follows: A duct structure for use in a spacecraft includes:

[0005] The main pipeline and the filter pipeline are connected by a bend, and the end of the filter pipeline away from the main pipeline faces the ground.

[0006] The filter pipe includes a first pipe section and a second pipe section, which are movably connected. The second pipe section is provided with an outer mesh for blocking small animals at its end away from the first pipe section. The second pipe section is also provided with a filter element for blocking mosquitoes. The filter element is provided with a first filter screen and a second filter screen. The second filter screen is arranged adjacent to the outer mesh, and the first filter screen is located on the side of the second filter screen away from the outer mesh.

[0007] Preferably, the filter element includes a nested ring and a cylindrical body with a diameter smaller than that of the nested ring, and the first filter screen and the second filter screen are disposed in the cylindrical body.

[0008] Preferably, the port where the second pipe segment connects with the first pipe segment is provided with an embedding groove, the outer wall of the first pipe segment is provided with an external thread, the inner wall of the embedding groove is provided with an internal thread adapted to the external thread, and the first pipe segment is threadedly connected to the embedding groove while the nesting ring is held against the bottom of the embedding groove.

[0009] Preferably, a first filter screen is provided inside the first pipe section.

[0010] Preferably, the mesh count of the first filter screen is greater than that of the second filter screen, and the mesh count of the second filter screen is greater than that of the outer partition screen.

[0011] Preferably, the angle between the main pipe and the first pipe section is no greater than 150°.

[0012] Compared with the prior art, the embodiments of this application have the following main advantages:

[0013] The filter structure design provided by this utility model for the air duct structure of a spacecraft provides a layer-by-layer blocking mechanism. Although the density of the filter is greater, the higher the mesh number, the more easily it is damaged due to the use of grids or materials. By increasing the mesh number, the strength of the filter is enhanced. Different mesh numbers of filters are used to intercept different animals, preventing strong destructive animals from directly damaging the fine filter and preventing small animals from entering through the damaged area. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a wind duct structure for use in a space capsule, provided by this utility model.

[0015] Figure 2 This is an exploded structural diagram of a wind duct structure for use in a space capsule, provided by this utility model.

[0016] Figure 3 This is a schematic diagram of a filter pipe structure for use in a space capsule's air duct structure, provided by this utility model.

[0017] Figure 4 This is a schematic diagram of a filter element used in the air duct structure of a spacecraft, provided by this utility model.

[0018] Figure 5 This is a schematic diagram of the first filter screen, second filter screen, and outer partition screen structure of an air duct structure applied to a space capsule, provided by this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 110. Main pipe; 120. Bend; 210. First pipe section; 220. Second pipe section; 201. Embedded groove; 300. Filter element; 310. Nested ring; 320. Cylinder; 330. First filter screen; 340. Second filter screen; 400. Outer partition. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides an air duct structure for use in a space capsule, specifically for use within the air outlet duct of a space capsule-type building, such as... Figures 1-5 As shown, the air duct structure applied to a spacecraft includes:

[0024] The main pipe 110 and the filter pipe are connected by a bend 120, and the end face of the filter pipe away from the main pipe 110 faces the ground.

[0025] The filter pipe includes a first pipe section 210 and a second pipe section 220, which are movably connected. The end of the second pipe section 220 away from the first pipe section 210 is provided with an outer mesh 400 for blocking small animals. The second pipe section 220 is also provided with a filter element 300 for blocking mosquitoes. The filter element 300 includes a nested ring 310 and a cylinder 320 with a diameter smaller than that of the nested ring 310. A first filter screen 330 and a second filter screen 340 are provided inside the cylinder 320. The second filter screen 340 is arranged adjacent to the outer mesh 400, and the first filter screen 330 is located on the side of the second filter screen 340 away from the outer mesh 400.

[0026] In this embodiment, the main pipe 110 is equipped with a corresponding exhaust fan and a backflow preventer, etc. The specific equipment is configured as needed. The main pipe 110 and the filter pipe are bent by a bend 120. The inclined design makes it difficult for some small animals to climb into the space capsule. The mesh count of the first filter 330 is larger than that of the second filter 340, and the mesh count of the second filter 340 is larger than that of the outer partition 400. The outer partition 400 mainly prevents small animals from the outside, such as mice or birds. The angle between the main pipe 110 and the first pipe section 210 is no more than 150°. The inclined design can prevent small animals from using this as a nesting site. The second filter 340 blocks larger insects, while the first filter 330 with the highest mesh count blocks mosquitoes. The density here is similar to that of ordinary household window screens in the prior art. The second filter 340 mainly blocks small beetles, bees, and other insects or animals.

[0027] The purpose of this layered barrier design is that, although higher mesh count filters have a lower density, they are more easily damaged due to the use of grids or materials. By increasing the mesh count, the filter strength is enhanced, intercepting different animals and preventing strong destructive animals from directly damaging the fine filter, as well as preventing small animals from entering through damaged areas. For example, the outer 400 mesh can be made of larger diameter grid strips. Since the mesh count can be lower here, there is no need to use fine diameter grid strips to make the filter. These larger diameter filters have a better blocking effect and are less likely to be damaged, so small animals cannot cause damage and cannot continue to penetrate to the deeper, higher mesh count filters.

[0028] In a preferred embodiment of this invention, the port where the second pipe segment 220 connects with the first pipe segment 210 is provided with an embedding groove 201 whose size is larger than the outer diameter of the first pipe segment 210. The outer wall of the first pipe segment 210 is provided with an external thread, and the inner wall of the embedding groove 201 is provided with an internal thread that matches the external thread. The first pipe segment 210 is threadedly connected to the embedding groove 201, and the nesting ring 310 is held against the bottom of the embedding groove 201.

[0029] In this embodiment, the second pipe segment 220 and the first pipe segment 210 are connected by a threaded connection, which facilitates the maintenance of the filter element 300 inside the second pipe segment 220. The outer diameter of the nested ring 310 is similar to the inner diameter of the embedding groove 201, and the outer diameter of the cylinder 320 is adapted to the inner diameter of the second pipe segment 220. The cylinder 320 can be inserted into the interior of the second pipe segment 220, while the nested ring 310 will be engaged in the embedding groove 201. A sealing rubber ring is provided on the outside of the nested ring 310, which can provide friction and prevent some small insects from entering through the gap. Here, the depth of the embedding groove 201 is greater than the height of the nested ring 310, so that it can be held against the bottom of the embedding groove 201 by the first pipe segment 210 when the threaded connection is made.

[0030] As a preferred embodiment of this example, the first filter screen 330, the second filter screen 340 and the outer partition screen 400 have the same structure, consisting of a filter screen and an outer connecting ring for tensioning the filter screen. The filter screen adopts existing partition screen technology, which requires different mesh sizes to use different grid diameters to cope with different destructive forces. The larger the mesh size, the better the anti-destructive effect of the filter screen.

[0031] The second pipe section 220 or the cylinder 320 is provided with an inner assembly ring that supports the outer connecting ring. The outer connecting ring and the inner assembly ring are fixedly connected by bolts, and can be disassembled and maintained later. Here, the first filter screen 330 and the second filter screen 340 are pushed into the cylinder 320 from both ends of the cylinder 320 to complete the assembly.

[0032] In a preferred embodiment of this invention, the first pipe section 210 is provided with a first filter screen 330. The first filter screen 330 in the first pipe section 210 mainly provides a secondary supplement to the first filter screen 330 in the second pipe section 220. The air duct structure is an exhaust fan. During the exhaust process, the airflow will pass through multiple layers of filter screens and blow off any animals remaining on the surface of the filter screens. Therefore, there is no need to worry about the animals remaining on the surface of the filter screens affecting the exhaust effect. In actual use, regular cleaning and maintenance will also be required to reduce the entry of external animals into the room through the exhaust vent.

[0033] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A wind duct structure for use in a spacecraft, characterized in that, include: The main pipe (110) and the filter pipe are connected by a bend (120), and the end face of the filter pipe away from the main pipe (110) faces the ground. The filter pipe includes a first pipe section (210) and a second pipe section (220), which are movably connected. The second pipe section (220) has an outer mesh (400) for blocking small animals at its end away from the first pipe section (210). The second pipe section (220) also has a filter element (300) for blocking mosquitoes inside. The filter element (300) has a first filter screen (330) and a second filter screen (340) with a smaller mesh size inside. The second filter screen (340) is arranged near the outer mesh (400), and the first filter screen (330) is located on the side of the second filter screen (340) away from the outer mesh (400).

2. The air duct structure for use in a space capsule as described in claim 1, characterized in that, The filter element (300) includes a nested ring (310) and a cylindrical body (320) with a diameter smaller than that of the nested ring (310), and the first filter screen (330) and the second filter screen (340) are disposed inside the cylindrical body (320).

3. The air duct structure for use in a space capsule as described in claim 2, characterized in that, The second pipe segment (220) is provided with an embedded groove (201) at the port where it connects with the first pipe segment (210). The outer wall of the first pipe segment (210) is provided with an external thread, and the inner wall of the embedded groove (201) is provided with an internal thread that matches the external thread. The first pipe segment (210) is threadedly connected to the embedded groove (201) while the nested ring (310) is held against the bottom of the embedded groove (201).

4. The air duct structure for use in a space capsule as described in claim 3, characterized in that, The first pipe section (210) is equipped with a first filter screen (330).

5. The air duct structure for use in a space capsule as described in claim 4, characterized in that, The mesh count of the first filter screen (330) is greater than that of the second filter screen (340), and the mesh count of the second filter screen (340) is greater than that of the outer partition screen (400).

6. The air duct structure for use in a space capsule as described in claim 5, characterized in that, The angle between the main pipe (110) and the first pipe section (210) is no greater than 150°.

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