Exhaust assembly and storage device

Abstract

The invention is suitable for the technical field of articles of daily use, and provides an exhaust assembly and a storage device.The exhaust assembly comprises an outer shell, an inner shell and an exhaust pump, the inner shell comprises an inner bottom shell and a cover plate, the cover plate comprises a cover plate body used for being arranged at a second opening and sealing a second cavity, and the cover plate and / or the inner bottom shell are / is provided with a flange surrounding the second opening; at least one first connecting column is arranged on the inner wall of the outer shell in a protruding mode, an avoiding hole allowing the first connecting column to penetrate through is formed in the inner bottom shell, and the first connecting column is fixedly connected with the cover plate body through the avoiding hole. When the first connecting column is fixedly connected with the cover plate body, the connecting acting force is directly applied to the cover plate body and the outer shell instead of the inner bottom shell, the acting force is transmitted to the outer shell and the blocking edge, the connecting point of the first connecting column and the cover plate body is closer to the outer shell and the blocking edge, and the deformation trend of the outer shell and the blocking edge is smaller. Particularly, the deformation trend of the flanges is smaller, so that the exhaust component can be stably kept on the wall of the cavity and is not easy to shake and fall off.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities, and in particular to an exhaust assembly and a storage device. Background Art

[0002] Compression bags, sealed bags, etc. are exhausted and compressed by exhaust pumps. At present, products that can be exhausted and compressed have gradually appeared on items such as suitcases and handbags, which can reduce the space for clothes and other items and increase the loading capacity of suitcases and handbags.

[0003] These products need to be equipped with an exhaust assembly, which is connected to the inner cavity of the suitcase or handbag and fixed on the suitcase or handbag, so that the user can evacuate and seal the inner cavity by opening the exhaust assembly, thereby eliminating the trouble of purchasing an additional exhaust assembly and avoiding the worry of losing the exhaust assembly.

[0004] There are two main aspects to consider when installing exhaust components on suitcases and handbags. First, the airtightness of each joint on the exhaust path to avoid air leakage during use and thus compression failure. Second, the exhaust component is installed firmly and is not likely to fall off during check-in, thereby not easily affecting the airtightness of the exhaust path. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide an exhaust component, aiming to provide a solution that can improve the installation stability of the exhaust component on the luggage box and thereby ensure the airtightness at various locations on the exhaust path.

[0006] The embodiment of the present application is implemented as follows: an exhaust assembly is used to be arranged on the cavity wall of the storage device, including:

[0007] A housing having a first opening and a first cavity in communication with each other;

[0008] The inner shell comprises an inner bottom shell and a cover plate, wherein the inner bottom shell is provided with a second opening and a second cavity which are in communication with each other, and the cover plate comprises a cover plate body which is arranged at the second opening and closes the second cavity; the inner bottom shell is at least partially arranged in the first cavity; a rib surrounding the second opening is further provided on the periphery of the cover plate body and / or the inner bottom shell, and the mutually adjacent surfaces of the outer shell and the rib are used to clamp the cavity wall of the storage device; and

[0009] an exhaust pump, at least partially disposed in the second chamber;

[0010] Among them, at least one first connecting column is protruding on the inner wall of the outer shell, and an avoidance hole for the first connecting column to pass through is provided on the inner bottom shell, and the first connecting column is fixedly connected to the cover body via the avoidance hole.

[0011] In one embodiment, a first boss protruding toward the cover plate is provided on the inner wall of the shell, and the first connecting column is formed on the first boss.

[0012] In one embodiment, the first boss is formed by a partial area of ​​the outer shell being recessed toward the inner shell.

[0013] In one embodiment, a portion of the upper area of ​​the inner bottom shell protrudes toward the cover plate to form a second boss corresponding to the first boss.

[0014] In one embodiment, at least one second connecting column is formed on the second boss, and the second connecting column is fixedly connected to the cover plate.

[0015] In one embodiment, the first bosses are respectively located on two opposite sides of the exhaust pump; at least two first connecting columns are disposed on each of the first bosses; and the second connecting columns are disposed between the first connecting columns.

[0016] In one embodiment, a first threaded hole is formed on the first connecting column, a first mounting hole is formed on the cover plate, a threaded section of the threaded member passes through the first mounting hole and is threadedly engaged in the first threaded hole, and a head of the threaded member abuts against a side of the cover plate facing away from the housing.

[0017] In one embodiment, the rib is formed on the cover plate and connected to the periphery of the cover plate body; a first annular groove surrounding the first opening is provided on the surface of the outer shell facing the rib and / or on the surface of the rib facing the outer shell; the exhaust assembly also includes a first sealing ring, which is provided in the first annular groove, and a natural height of the first sealing ring is greater than a depth of the first annular groove.

[0018] In one embodiment, at least one abutting rib is provided on the inner side wall of the outer shell, and the abutting rib is used to abut against the outer side wall of the inner bottom shell.

[0019] Another object of the present application is to provide a storage device, which includes a device body and an exhaust assembly as described in the above embodiments, the device body includes cavity walls connected to each other, and an airtight bag arranged in the space formed by the cavity walls, the cavity wall is provided with an opening, the outer shell passes through the opening, and the mutually adjacent surfaces of the outer shell and the retaining edge jointly clamp the cavity wall.

[0020] The exhaust assembly and storage device provided in the embodiments of the present application have the following beneficial effects:

[0021] The exhaust assembly provided in the embodiment of the present application has a first connecting hole of its outer shell passing through the inner bottom shell and then connected to the cover plate. When the first connecting column is fixedly connected to the cover plate body, the connection force is directly applied to the cover plate body and the outer shell, rather than the inner bottom shell. Therefore, the force is transmitted to the outer shell and the rib. Compared with the method of directly connecting the outer shell and the inner bottom shell, the connection point between the first connecting column and the cover plate body is closer to the outer shell and the rib, and the deformation tendency of the outer shell and the rib is smaller, especially the deformation tendency of the rib is smaller. Therefore, the cavity wall can be clamped more stably, which can ensure that the exhaust assembly is stably maintained on the cavity wall. Especially when the cavity wall is made of flexible material, the exhaust assembly of the present application is not prone to shaking, falling off, etc. at the opening of the cavity wall, which is conducive to ensuring the airtightness of various points on the exhaust path from the airtight bag to the exhaust assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a perspective schematic diagram of an exhaust assembly provided in an embodiment of the present application;

[0024] Figure 2 is a three-dimensional schematic diagram of an exhaust assembly provided in an embodiment of the present application from another angle;

[0025] Figure 3 is a partially exploded schematic diagram of an exhaust assembly provided in an embodiment of the present application;

[0026] Figure 4 is a further exploded schematic diagram of an exhaust assembly provided in an embodiment of the present application;

[0027] Figure 5 It is a fully exploded schematic diagram of an exhaust assembly provided in an embodiment of the present application from one angle;

[0028] Figure 6 It is a fully exploded schematic diagram of an exhaust assembly provided in an embodiment of the present application from one angle;

[0029] Figure 7 is a schematic diagram of the back structure of the baffle plate in the exhaust assembly provided in an embodiment of the present application;

[0030] Figure 8 is a cross-sectional structural diagram of an exhaust assembly provided in an embodiment of the present application;

[0031] Fig. 9is a longitudinal cross-sectional structural diagram of an exhaust assembly provided in an embodiment of the present application;

[0032] Fig.10 is a cross-sectional structural diagram of a housing in an exhaust assembly provided in an embodiment of the present application;

[0033] Fig.11 is a schematic diagram of the structure of a storage device provided in an embodiment of the present application, wherein the airtight bag is in an uncompressed state;

[0034] Fig.12 It is a schematic diagram of the structure of the storage device provided in an embodiment of the present application, wherein the airtight bag is in a compressed state.

[0035] The meanings of the marks in the figure are:

[0036] 200-storage device; 9-device body, 91-cavity wall, 92-airtight bag, 920-sealed cavity, 93-exhaust pipe, 94-vent cover;

[0037] 100-exhaust assembly;

[0038] 3-housing, 30-first cavity, 31-first connecting column, 310-first threaded hole, 32-first boss, 33-first exhaust port, 34-first annular groove, 35-guide rib, 36-holding rib, first opening 37;

[0039] 4-inner shell; 41-inner bottom shell, 410-second cavity, 411-second connecting column, 4110-second threaded hole, 412-second boss, 413-second exhaust port, 414-avoidance hole, 415-fixing plate, 416-second annular groove, second opening 417;

[0040] 42-cover plate, 420-sink, 421-cover plate body, 4211-first mounting hole, 4213-fourth exhaust port, 422-rib, 425-handle groove, 426-fixing hole;

[0041] 43-shielding plate, 431-installation convex part, 432-limiting convex part;

[0042] 5-exhaust pump, 51-motor, 52-impeller, 53-check valve, 54-third exhaust port;

[0043] 6-Gas nozzle;

[0044] 71-first sealing ring, 72-second sealing ring, 73-third sealing ring;

[0045] 8-circuit board, 81-switch, 82-power interface. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0047] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly fixed or disposed on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0048] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0049] First, see Fig.11 and Fig.12 As shown, the embodiment of the present application first provides a storage device 200, which includes a device body 9 and an exhaust assembly 100 disposed on the device body 9. The device body 9 includes a cavity wall 91 and an airtight bag 92. The airtight bag 92 is a flexible, compressible bag, and the sealed cavity 920 inside it is connected to the exhaust assembly 100. The exhaust assembly 100 is fixedly disposed on one of the cavity walls 91. Through the exhaust assembly 100, the gas in the sealed cavity 920 can be discharged to achieve exhaust compression of the airtight bag 92.

[0050] The plurality of cavity walls 91 are interconnected and enclosed to define a space for accommodating the airtight bag 92. Specifically, the cavity wall 91 can be in the form of fully surrounding the airtight bag 92 or in the form of half surrounding the airtight bag 92.

[0051] The storage device 200 and its cavity wall 91 are not limited in form. For example, the storage device 200 may be a suitcase, see Fig.11 and Fig.12 As shown, the cavity wall 91 includes the walls of the luggage case. Alternatively, in other optional embodiments, the storage device 200 can be a portable storage structure such as a handbag or a backpack. In more embodiments, the storage device 200 can also be a storage box.

[0052] Specifically, an opening (not shown) is provided on the cavity wall 91, a portion of the exhaust assembly 100 is located inside the cavity wall 91 and outside the sealed cavity 920, and another portion is restricted outside the cavity wall 91. By fixing these two portions together, the exhaust assembly 100 can be kept fixed on the cavity wall 91.

[0053] like Fig.11 and Fig.12 As shown, an exhaust pipe 93 is connected between the exhaust assembly 100 and the airtight bag 92. The exhaust pipe 93 may be a flexible pipe, such as a flexible plastic pipe. The flexible exhaust pipe 93 can adapt to the shape change of the airtight bag 92 during the exhaust process, and avoid the interaction of the pulling force between the airtight bag 92 and the exhaust assembly 100 to affect the airtightness of various locations on the exhaust path.

[0054] An exhaust path is formed from the airtight bag 92 to the exhaust assembly 100 , and air leakage may occur at the connection between the airtight bag 92 and the exhaust pipe 93 , and at the connection between the exhaust pipe 93 and the exhaust assembly 100 .

[0055] The embodiments of the present application provide a solution for improving the air tightness at various locations on the exhaust path.

[0056] See also Figure 1 , Figure 4 and Figure 5 As shown, the exhaust assembly 100 includes an outer shell 3, an inner shell 4 and an exhaust pump 5; wherein a first cavity 30 is provided in the outer shell 3, and a first opening 37 communicating with the first cavity 30 is formed on the outer shell 3; the inner shell 4 includes an inner bottom shell 41 and a cover plate 42, wherein the inner bottom shell 41 is provided with a second cavity 410 and a second opening 417 communicating with the second cavity 410, and the cover plate 42 includes a cover plate body 421 for being arranged at the second opening 417 and closing the second cavity 410, and a rib 422 surrounding the second opening 417 is further provided on the inner bottom shell 41 and / or the periphery of the cover plate body 421. The exhaust pump 5 is arranged in the second cavity 410, and the cover plate body 421 is fixedly connected to the inner bottom shell 41.

[0057] like Figure 8 and Fig. 9 As shown, at least a portion of the inner bottom shell 41 is disposed in the first cavity 30, and the outer shell 3 and the retaining edge 422 are respectively located on opposite sides of the cavity wall 91. That is, when the outer shell 3 is fixedly connected to the inner shell 4, the end surface of the outer shell 3 facing the cover body 421 and the surface of the retaining edge 422 facing the outer shell 3 can be used to clamp the cavity wall 91 of the storage device 200, so as to achieve the fixed connection between the exhaust assembly 100 and the cavity wall 91.

[0058] When the outer shell 3 is connected to the inner bottom shell 41, the distance between the end face of the outer shell 3 facing the cover body 421 and the surface of the retaining edge 422 facing the outer shell 3 is set according to the specific scenario in which the exhaust assembly 100 is used, that is, it is set according to the specific thickness of the cavity wall 91 in the specific type of storage device 200. In one embodiment, the thickness of the cavity wall 91 can be 0.1mm to 0.3mm, so the distance between the end face of the outer shell 3 facing the cover body 421 and the surface of the retaining edge 422 facing the outer shell 3 is 0.1mm to 0.3mm. Of course, this is only an example. In more cases, the thickness of the cavity wall 91 can have other ranges, and accordingly, the distance between the end face of the outer shell 3 facing the cover body 421 and the surface of the retaining edge 422 facing the outer shell 3 can be designed to be adapted.

[0059] The exhaust assembly 100 ensures the relative position between the inner shell 4 by means of the sleeve and accommodation of the outer shell 3. Therefore, the position and position retention of the exhaust pump 5 in the inner shell 4 affect the air tightness of the exhaust path between the exhaust pump 5 and the inner shell 4, and the position and position retention of the inner shell 4 in the outer shell 3 affect the air tightness of the exhaust path between the inner shell 4 and the outer shell 3. Whether the exhaust assembly 100 can be stably maintained on the cavity wall 91 affects the air tightness of the connection between the outer shell 3 and the exhaust pipe 93.

[0060] The embodiments of the present application are directed to improving the air tightness of one or more locations on the above-mentioned exhaust path.

[0061] The embodiment of the present application provides an exhaust assembly 100 that can be stably disposed on a cavity wall 91 .

[0062] In one embodiment of this application, please refer to Figure 5 , Figure 6 and Figure 8 As shown, at least one first connecting column 31 is protruded from the inner wall of the outer shell 3 , and an avoidance hole 414 for the first connecting column 31 to pass through is provided on the inner bottom shell 41 . The first connecting column 31 is fixedly connected to the cover body 421 via the avoidance hole 414 .

[0063] In this way, when the first connecting column 31 is fixedly connected to the cover body 421, the connecting force is directly applied to the cover body 421 and the outer shell 3, rather than the inner bottom shell 41, and then the force is transmitted to the outer shell 3 and the retaining edge 422. Compared with the method of directly connecting the outer shell 3 and the inner bottom shell 41, in the exhaust assembly 100 provided in the embodiment of the present application, the connection point between the first connecting column 31 and the cover body 421 is closer to the outer shell 3 and the retaining edge 422, and the outer shell 3 and the retaining edge 422 have a smaller deformation tendency, especially the retaining edge 422 has a smaller deformation tendency, and then, the cavity wall 91 can be clamped more stably. In this way, it can be ensured that the exhaust assembly 100 is stably maintained on the cavity wall 91. In particular, when the cavity wall 91 is made of a flexible material, the exhaust assembly 100 of the present application is not prone to shaking, falling off, and other problems at the opening of the cavity wall 91.

[0064] In this way, the exhaust component 100 can be stably maintained on the cavity wall 91, and the airtightness of each location on the exhaust path is indirectly guaranteed because the stability of the connection between the exhaust component 100 and the exhaust pipe 93 can be guaranteed.

[0065] It should also be noted that please refer to Figure 5 , Figure 8 and Fig. 9 As shown, at least a portion of the inner bottom shell 41 is located inside the outer shell 3 , and at least a portion of the exhaust pump 5 is located inside the inner bottom shell 41 . The inner bottom shell 41 and the outer shell 3 simultaneously protect the exhaust pump 5 , thereby improving the protection capability of the exhaust pump 5 .

[0066] In one embodiment, the outer shell 3, the inner bottom shell 41 and the cover plate 42 are all made of hard plastic materials and are made by injection molding. In other optional embodiments, if permitted, the outer shell 3, the inner bottom shell 41 and the cover plate 42 can be formed by other materials and methods. For example, the cover plate 42 can be made of metal material and made by machining; the outer shell 3 or the inner bottom shell 41 can be made of metal material and welded by multiple metal sheets, etc. This application does not specifically limit the material and molding method of the outer shell 3, the inner bottom shell 41 and the cover plate 42.

[0067] The connection method between the first connection column 31 and the cover body 421 is not limited.

[0068] For example, see Figure 4 , Figure 5 and Figure 6As shown, a first threaded hole 310 is provided on the end surface of the first connecting column 31 facing the cover body 421, and a corresponding first mounting hole 4211 is provided on the cover body 421. The threaded section of the threaded member (not shown) passes through the first mounting hole 4211 and is threadedly engaged in the first threaded hole 310, and the head of the threaded member abuts against the side surface of the cover 42 that is away from the housing 3. In this way, the fixed connection and detachable connection between the cover body 421 and the housing 3 are achieved.

[0069] Alternatively, a pin hole (not shown) is provided on the end of the first connecting column 31 facing the cover body 421, and a corresponding first mounting hole 4211 is provided on the cover body 421. The end of the first connecting column 31 facing the cover body 421 passes through the first mounting hole 4211 and protrudes from the surface of the cover body 421. A locking pin (not shown) passes through the pin hole along the surface of the cover body 421 and abuts against a side surface of the cover body 421 facing away from the outer shell 3.

[0070] In other embodiments, the first connection column 31 and the cover body 421 may be connected in other ways. Optionally, the first connection column 31 and the cover body 421 are detachably connected.

[0071] In one embodiment, the retaining edge 422 is disposed on the inner bottom shell 41. At this time, the size of the cover body 421 is set to be larger than the size of the second opening 417, and the cover body 421 is covered on the second opening 417.

[0072] In one embodiment, the aforementioned retaining edge 422 is disposed on the cover plate 42 and connected to the periphery of the cover plate body 421 .

[0073] In one embodiment, the aforementioned ribs 422 may be disposed on both the inner bottom shell 41 and the cover plate 42 .

[0074] In one embodiment, the above-mentioned retaining edge 422 is at least provided on the cover plate 42 and connected to the periphery of the cover plate body 421. Optionally, the retaining edge 422 and the cover plate body 421 are integrally formed.

[0075] In order to reduce the space occupied by the exhaust assembly 100 outside the cavity wall 91, in one embodiment, the above-mentioned retaining edge 422 is arranged on the cover plate 42, see Figure 4 , Figure 5 and Figure 6 At this time, the retaining edge 422 is a single-layer structure, and will not form an obvious protruding structure outside the cavity wall 91. At the same time, the retaining edge 422 is no longer provided on the inner bottom shell 41, which can simplify the structure of the inner bottom shell 41 and reduce the difficulty and cost of its processing and production.

[0076] See also Figures 4 to 6As shown, the retaining edge 422 is in a closed ring shape at the edge of the cover body 421. That is, the retaining edge 422 is an integral ring edge, and the retaining edge 422 has a higher anti-deformation ability.

[0077] The exhaust pump 5 is fixed on the cavity wall 91 through the outer shell 3 and the inner bottom shell 41. The exhaust pump 5 is connected to the sealed cavity 920 of the airtight bag 92 through the exhaust pipe 93, so that the air in the sealed cavity 920 can be discharged.

[0078] See also Figure 5 and Figure 6 As shown, in one embodiment, the outer shell 3 is further provided with a first exhaust port 33 communicating with the first cavity 30, the inner bottom shell 41 is provided with a second exhaust port 413 communicating with the second cavity 410, the exhaust pump 5 has an air inlet (not shown) and a third exhaust port 54, and the first exhaust port 33, the second exhaust port 413 and the air inlet of the exhaust pump 5 are sequentially connected. An exhaust pipe 93 is provided outside the outer shell 3, and one end of the exhaust pipe 93 is sealed and connected with the first exhaust port 33. The other end of the exhaust pipe 93 is provided on the airtight bag 92 and communicates with the sealed cavity 920.

[0079] See also Figure 5 and Fig.10 As shown, in one embodiment, at least one guide rib 35 is provided on the inner wall of the outer shell 3, specifically on the inner wall on the side opposite to the first exhaust port 33, and the height of the guide rib 35 (the height of the protrusion on the inner wall of the outer shell 3) gradually increases in the direction away from the cover plate 42, that is, gradually increases downward. In this way, when the inner bottom shell 41 is placed into the first cavity 30 from the first opening 37, the inner bottom shell 41 moves downward along the guide surface of the guide rib 35 toward the first exhaust port 33, and gradually presses against the inner wall of the outer shell 3. This facilitates the installation of the inner bottom shell 41 in the outer shell 3 and helps to ensure the airtightness of each location on the exhaust path.

[0080] In an optional embodiment, there are multiple guide ribs 35, and the multiple guide ribs 35 are arranged at intervals to guide and support the inner bottom shell 41 from multiple points.

[0081] Please continue reading Figure 5 and Fig.10As shown, one or more abutting ribs 36 are also provided on the inner wall of the side opposite to the first exhaust port 33 of the shell 3, and the abutting ribs 36 are located on the side of the inner bottom wall of the guide ribs 35 close to the shell 3. The abutting ribs 36 are used to abut the inner bottom shell 41 when the inner bottom shell 41 reaches the bottom of the shell 3. In other words, the height of the abutting ribs 36 can be equal to the height of the highest point of the guide ribs 35, that is, the height of the lowest end of the guide ribs 35. The arrangement of the abutting ribs 36 on the inner wall of the inner bottom shell 41 makes the force between the inner bottom shell 41 and the shell 3 concentrated at the abutting ribs 36, so that the shell 3 and its abutting ribs 36 are more likely to be relatively slightly deformed with the inner bottom shell 41, which provides a pressing force between the inner bottom shell 41 and the shell 3. In this way, it can be ensured that the inner bottom shell 41 and the shell 3 are pressed against each other. This further provides the stability of the connection between the inner shell 4 and the shell 3.

[0082] Furthermore, the provision of the abutting ribs 36 can make the size adaptation design of the outer shell 3 and the inner bottom shell 41 more flexible, which is helpful to reduce the difficulty of size matching between the two and reduce the difficulty of processing and manufacturing the two.

[0083] In a specific embodiment, the number of the guide ribs 35 and the abutment ribs 36 is the same and they are connected one by one. Figure 5 and Fig.10 The guide ribs 35 and the abutting ribs 36 are connected one by one to form an integral rib, which is beneficial to reducing the complexity of the inner wall of the inner bottom shell 41 and reducing the difficulty of processing and manufacturing the inner bottom shell 41.

[0084] Alternatively, if Figure 2 , Figure 3 and Figure 4 As shown, the exhaust assembly 100 further includes an air nozzle 6, which is disposed on the outer wall of the housing 3 and is sealed to the first exhaust port 33, and the other end of the air nozzle 6 is used to connect to the exhaust pipe 93. Through the connection of the air nozzle 6, it is easier to achieve a fixed connection and a sealed connection between the exhaust pipe 93 and the housing 3.

[0085] See also Figure 5 and Figure 6 As shown, in one embodiment, the exhaust pump 5 includes a motor 51, an impeller 52 and a one-way valve 53, the one-way valve 53 is arranged at the first exhaust port 33 (it can also be arranged at the second exhaust port 413), and the impeller 52 and the motor 51 are arranged in the second cavity 410. The motor 51 drives the impeller 52 to rotate, and exhausts air to the outside in one direction through the one-way valve 53.

[0086] In one embodiment, the one-way valve 53 may partially pass through the housing 3 and be located in the air nozzle 6, and be aligned with and connected to the second exhaust port 413 and the first exhaust port 33, as shown in FIG. Fig. 9In addition, according to the different structures of the one-way valve 53, in other optional embodiments, the one-way valve 53 can have other settings.

[0087] See also Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the exhaust assembly 100 further includes a circuit board 8, which is disposed in the second cavity 410 and connected to the exhaust pump 5. The circuit board 8 is used to provide electrical energy to the exhaust pump 5 to control the operation of the motor 51 of the exhaust pump 5.

[0088] In an optional embodiment, the circuit board 8 is disposed between the motor 51 and the cover body 421. Figure 8 and Fig. 9 shown.

[0089] This is because the circuit board 8 is usually provided with accessories such as a switch 81 and / or a power interface 82, and optionally with an indicator light (not shown), etc. The circuit board 8 is used to control the start and stop of the motor 51. On this basis, the circuit board 8 is arranged on a side of the motor 51 close to the cover body 421, allowing the switch 81, the power interface 82, etc. to be exposed through the cover 42 for user operation.

[0090] The power interface 82 is used to connect the circuit board 8 to an external power source (such as a power bank, a charging socket, etc.); the switch 81 is used to connect or disconnect the circuit board 8 to the external power source to avoid the circuit board 8 being burned due to the external power source being instantly connected to the circuit board 8. In this embodiment, the exhaust assembly 100 relies on an external power source to work, and there is no need to set up a battery or other structure in the second cavity 410, which can reduce the volume of the exhaust assembly 100 and is also conducive to the consignment of the storage device 200.

[0091] In other optional embodiments, a secondary battery (not shown) or a battery compartment (not shown) for a primary battery may be provided in the exhaust assembly 100. In this way, the power interface 82 may be omitted.

[0092] Optionally, in one embodiment, Figure 3 and Figure 4 As shown, the exhaust component 100 also includes a shielding plate 43, which is arranged on the side of the cover body 421 away from the outer shell 3, and is used to shield the power interface 82, the switch 81, the indicator light, etc., so that when the exhaust component 100 is not in use, the relevant structures of the circuit board 8 are not exposed. When it is needed, the shielding plate 43 can expose the power interface 82, the switch 81, the indicator light, etc. by flipping or bending.

[0093] In an optional embodiment, the shielding plate 43 is a flexible plate, such as a flexible plastic plate, a silicone plate, etc., one end of which is fixed to the cover body 421; or, the shielding plate 43 is a hard plate, one end of which is rotatably connected to the cover body 421.

[0094] Among them, Figure 4 , Figure 5 and Figure 6 As shown, a recessed groove 420 is provided on the surface of the cover plate 42 facing away from the housing 3, and the shielding plate 43 is arranged in the recessed groove 420. The purpose of such design is to make the surface of the shielding plate 43 flush with the surface of the retaining edge 422 when it is not opened, or even lower than the surface of the retaining edge 422, see Figure 1 , Figure 8 and Fig. 9 More specifically, the sink 420 can be formed based on the height misalignment between the cover body 421 and the retaining edge 422. The shielding plate 43 is flush with or even lower than the retaining edge 422, which can prevent the shielding plate 43 from being worn or opened in an unexpected situation.

[0095] See also Figure 1 As shown, a hand-grip groove 425 is provided on the surface of the cover plate 42 facing away from the housing 3, and the hand-grip groove 425 is connected to the sink 420. There is a gap between the inner wall of the hand-grip groove 425 and the outer wall of the shielding plate 43, and the gap serves as a hand-grip position for the user to buckle the finger into and open the shielding plate 43.

[0096] The shape and position of the hand-grip groove 425 are not limited, and it can be a strip groove, a circular groove, etc. extending outward from one side edge of the sink 420.

[0097] See also Figure 5 and Figure 6 As shown, there are multiple first connecting columns 31 for forming multi-point connection with the cover body 421, thereby improving the connection stability between the shell 3 and the cover 42, and making the force on multiple points on the cover 42 uniform, which can further avoid the risk of local deformation of the cover 42.

[0098] like Figure 4 and Figure 8 As shown, in an optional embodiment, a plurality of first connecting columns 31 are distributed on opposite sides of the motor 51, so that the connection point between the first connecting column 31 and the cover body 421 is located near the outer edge of the cover body 421, that is, near the rib 422. This can further reduce the risk of deformation of the rib 422 and improve the clamping stability of the housing 3 and the rib 422 on the cavity wall 91.

[0099] Specifically, the axial direction of the motor 51 is defined as the front-to-back direction, and the plurality of first connecting posts 31 can be distributed on the left and right sides of the motor 51, see Figure 4, Figure 5 and Figure 6 In this way, the position setting of the first connecting column 31 will not affect the sequential connection between the motor 51 and the impeller 52 in the front-to-back direction, and the front-to-back and left-to-right dimensions of the housing 3 can be roughly close, and the situation in which the dimensions in the front-to-back direction are particularly large will not occur.

[0100] More specifically, two first connecting posts 31 are respectively provided on the left and right sides of the motor 51, and the two first connecting posts 31 are spaced apart in the front-to-back direction, such as Figure 4 , Figure 5 and Figure 6 This can further make the distribution of the first connecting pillars 31 uniform overall.

[0101] In other optional embodiments, according to the overall size and connection requirements of the exhaust assembly 100, the number of first connecting columns 31 may have other values, such as three first connecting columns 31 are respectively provided on the left and right sides of the motor 51, etc., and examples are not given one by one here.

[0102] Also, please read Figure 5 , Figure 6 and Figure 8 As shown, a plurality of second connection posts 411 are protruded from the inner wall of the inner bottom shell 41 , and the second connection posts 411 are used to connect with the circuit board 8 to fix the circuit board 8 on the inner bottom shell 41 .

[0103] Specifically, see Figure 5 As shown, a second threaded hole 4110 is provided on the end surface of the second connecting column 411 facing the cover body 421 , and a threaded member (such as a bolt) passes through the circuit board 8 from the side surface of the circuit board 8 facing the cover 42 and engages in the second threaded hole 4110 .

[0104] In one embodiment, the cover plate 42 is detachably connected to the inner bottom shell 41. For example, a plurality of third connection columns (not shown) are protruding from the inner wall of the inner bottom shell 41, and the third connection columns are provided with third threaded holes. The cover plate 42 is provided with a second mounting hole (not shown), and a threaded member (such as a bolt) passes through the second mounting hole from the side of the cover plate 42 away from the outer shell 3 and engages in the third threaded hole.

[0105] In one embodiment, the rib 422 is non-detachably connected to the inner bottom shell 41. The rib 422 and the inner bottom shell 41 are independently manufactured and fixedly connected together by, for example, welding or bonding. Optionally, the rib 422 and the inner bottom shell 41 are fixedly connected together by ultrasonic welding.

[0106] The purpose of such a configuration is that, on the one hand, the inner shell 3 and its built-in structure are an inseparable whole, and the inner shell 3 can be easily pulled out of the outer shell 4 by means of the cover plate 42; on the other hand, there is no gap between the cover plate 42 and the inner bottom shell 41. Since the cover plate 42 is exposed outside the cavity wall 91, the seamless configuration can prevent rainwater, dust, etc. from entering between the cover plate 42 and the inner bottom shell 41, thereby avoiding adverse effects on the built-in structure, especially the motor 51, the circuit board 8, etc.

[0107] See also Figure 5 , Figure 6 and Figure 8 As shown, in one embodiment, a first boss 32 is provided on the inner wall of the housing 3, and each first connecting column 31 is formed on the first boss 32. The purpose of such a configuration is to reduce the height of the first connecting column 31, avoid the problem of bending and breaking of the first connecting column 31, and at the same time, reduce the difficulty of molding the first connecting column 31, and ensure that the first connecting column 31 is fully molded, for example, when the housing 3 and its first connecting column 31 are manufactured by injection molding.

[0108] When the outer shell 3 and the inner bottom shell 41 are assembled, the first bosses 32 are located on the left and right sides of the motor 51 .

[0109] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the first boss 32 is formed by a portion of the area on the outer shell 3 being recessed toward the inner shell 4. That is to say, the outer surface of the outer shell 3 is in a recessed form, and the first boss 32 mentioned above is obtained after a portion of the inner wall of the outer shell 3 is recessed accordingly. The purpose of such a setting is that, firstly, compared with a flat outer surface, the outer surface of the outer shell 3 is partially recessed, which actually forms a reinforced structure, and the outer shell 3 as a whole has a stronger pressure resistance, which can prevent the outer shell 3 from being deformed by force, thereby avoiding damage to the motor 51, etc.; secondly, the recessed outer shell 3 also saves a part of space, avoiding occupying too much space in the device body 9; thirdly, the outer shell 3 can maintain a lower weight and lower material cost.

[0110] like Figure 2 , Figure 5 and Figure 6 As shown, the dimension of the first boss 32 in the front-to-back direction is smaller than that of the housing 3 in the front-to-back direction, which enables the first boss 32 to have more side walls, thereby further improving the pressure resistance of the first boss 32. On this basis, sufficient space can be reserved in the first cavity 30 for the arrangement of the impeller 52, and the diameter of the impeller 52 can be larger than the diameter of the motor 51, so that the exhaust pump 5 has a stronger exhaust capacity.

[0111] The height of the first boss 32 (the height refers to the direction perpendicular to the axial direction of the motor 51 and pointing to the cover body 421) needs to be determined by comprehensively considering the height requirement of the first connecting column 31 and the difficulty of processing and manufacturing the housing 3. The larger the height of the first boss 32, the smaller the height of the first connecting column 31, the smaller the depth of the first threaded hole 310, and the greater the difficulty of processing and manufacturing the housing 3; the smaller the height of the first boss 32, the larger the height of the first connecting column 31, the easier it is for the first connecting column 31 to break under stress, and the easier it is for the housing 3 to be processed and manufactured.

[0112] In an optional embodiment, the height of the first boss 32 is one quarter to two thirds of the height of the housing 3. Further optionally, the height of the first boss 32 is one third to two thirds of the height of the housing 3. In a specific embodiment, the height of the first boss 32 is one half of the height of the housing 3.

[0113] See also Figure 4 , Figure 5 and Figure 6 As shown, a portion of the upper area of ​​the inner bottom shell 41 is recessed toward the cover plate 42 to form a second boss 412 corresponding to the first boss 32. In other words, the shape of the inner bottom shell 41 is adapted to the shape of the outer shell 3. Therefore, this can also enhance the compression resistance of the inner bottom shell 41, save the space occupied by the inner bottom shell 41, and reduce the weight and material cost of the inner bottom shell 41.

[0114] In addition, the shapes of the inner bottom shell 41 and the outer shell 3 are completely adapted and fit together, and the inner bottom shell 41 and the outer shell 3 form a double containment and protection layer for the motor 51, which can further resist the pressure from the outside and prevent the pressure from being transmitted to the motor 51 and the circuit board 8 and causing damage to the motor 51 and the circuit board 8.

[0115] The motor 51 is restricted between the adjacent side surfaces of the second boss 412. Due to the restriction of the second boss 412 and its surface, it is no longer necessary to set a fixing structure on the left and right sides of the motor 51 on the inner wall of the inner bottom shell 41, which is conducive to simplifying the complexity of the inner wall of the inner bottom shell 41 and reducing the processing and manufacturing cost of the inner bottom shell 41.

[0116] Optionally, the left and right side surfaces of the motor 51 are flat and abut against the side surfaces of the second boss 412 that are close to each other, thereby achieving stable support for the left and right sides of the motor 51 .

[0117] The bottom surface of the motor 51, that is, the side surface of the motor 51 away from the cover plate 42, can be further fixed by the inner wall of the inner bottom shell 41. For example, the side surface of the motor 51 away from the cover plate 42 is arc-shaped, and at least one fixing plate 415 can be set on the inner bottom wall of the inner bottom shell 41, see Figure 5 , Figure 6 and Fig. 9As shown, the fixing plate 415 has a rectangular fixing surface for abutting against a side surface of the motor 51 facing away from the cover plate 42 .

[0118] In more embodiments, the left and right side surfaces and the bottom surface of the motor 51 may have other shapes. Accordingly, a matching structure may be formed on the mutually adjacent side surface of the second boss 412 and the inner bottom wall of the inner bottom shell 41, which will not be described one by one with examples.

[0119] The stable installation of the motor 51 and the impeller 52 etc. in the inner bottom shell 41 is also conducive to maintaining the air tightness at various locations on the exhaust path, because the motor 51, the impeller 52 etc. are stably connected to the one-way valve 53 and the exhaust pipe 93.

[0120] See also Figure 4 , Figure 5 and Figure 6 As shown, the second connecting column 411 is formed on the second boss 412. The purpose of such a configuration is to reduce the height of the second connecting column 411, avoid the problem of bending and breaking of the second connecting column 411, and at the same time, reduce the difficulty of molding the second connecting column 411, and ensure that the second connecting column 411 is fully molded, for example, when the inner bottom shell 41 and its second connecting column 411 are manufactured by injection molding.

[0121] In a specific embodiment, the first connecting column 31 is connected to the cover body 421 by bolts. The first mounting holes 4211 are all connected to the sink 420, and the shielding plate 43 can cover the bolts of the first mounting holes 4211. Optionally, the cover 42 is further provided with a fourth exhaust port 4213, see Figure 4 As shown, the fourth exhaust port 4213 is connected to the second cavity 410 and is used for the exhaust pump 5 to exhaust to the outside. For example, it can be directly connected to the third exhaust port 54. The fourth exhaust port 4213 can be arranged in the sink 420 and can be shielded by the shielding plate 43.

[0122] In one embodiment, the cross-sectional areas of the first exhaust port 33, the second exhaust port 413, the air inlet of the exhaust pump 5, the third exhaust port 54, the fourth exhaust port 4213, and the valve port of the one-way valve 53 are all larger than the cross-sectional area of ​​the exhaust pipe 93. This can ensure that the gas in the airtight bag 92 is discharged faster through the exhaust pipe 93, and the first exhaust port 33, the second exhaust port 413, the air inlet of the exhaust pump 5, the third exhaust port 54, the fourth exhaust port 4213, and the valve port of the one-way valve 53 will not affect the gas discharge rate.

[0123] See also Figure 7As shown, in one embodiment, one or more limiting protrusions 432 are provided on the surface of the baffle plate 43 facing the cover body 421, and the limiting protrusions 432 cooperate with the positioning grooves provided on the surface of the cover body 421. For example, the limiting protrusions 432 are located in the positioning grooves and are squeezed and deformed, which allows the baffle plate 43 to be stably maintained in the sink 420 and is not easily opened without human force.

[0124] The positioning groove may include the fourth exhaust port 4213, that is, the positioning protrusion is inserted into the fourth exhaust port 4213, and may even include the third exhaust port 54 and the fourth exhaust port 4213, that is, the positioning protrusion is inserted into the fourth exhaust port 4213 and the third exhaust port 54. This can further ensure that the third exhaust port 54 of the exhaust pump 5 is sealed to prevent foreign matter, water, etc. from entering the exhaust pump 5.

[0125] Alternatively, if Figure 7 As shown, a mounting protrusion 431 is also provided on the surface of the baffle plate 43 facing the cover body 421, and the mounting protrusion 431 is used to connect with the cover 42 so that the baffle plate 43 is connected to the cover 42. Even when one end of the baffle plate 43 is opened, the other end of the baffle plate 43 can still remain connected to the cover 42.

[0126] like Figure 5 and Figure 6 As shown, the cover body 421 is provided with a through fixing hole 426. The mounting protrusion 431 passes through the fixing hole 426, and the diameter of the portion of the mounting protrusion 431 located on the side of the cover body 421 facing the housing 4 is set to be larger to prevent the mounting protrusion 431 from being easily separated from the fixing hole 426. When a user applies a certain force, the mounting protrusion 431 can be separated from the fixing hole 426 after being deformed.

[0127] See next Figure 4 , Figure 5 and Figure 6 As shown, a first annular groove 34 surrounding the first opening 37 is provided on the end surface of the housing 3 facing the rib 422 and / or on the surface of the rib 422 facing the housing 3. The exhaust assembly 100 also includes a first sealing ring 71. Figure 8 and Fig. 9 As shown, the first sealing ring 71 is arranged in the first annular groove 34; and the natural height of the first sealing ring 71 is greater than the depth of the first annular groove 34. Of course, the height of the compressed first sealing ring 71 is also greater than the depth of the first annular groove 34. That is, no matter what the state of the first sealing ring 71 is, part of it is located in the first annular groove 34 to ensure that it can be compressed as much as possible. When the housing 3 and the cover body 421 are fixedly connected, the rib 422 and the housing 3 are close to and compress the first sealing ring 71.

[0128] When the first annular groove 34 and the first sealing ring 71 are arranged on the end surface of the housing 3 facing the rib 422, the first sealing ring 71 is compressed between the housing 3 and the cavity wall 91, and the compressed first sealing ring 71 can increase the friction between the housing 3 and the cavity wall 91, thereby further improving the connection stability between the housing 3 and the cavity wall 91. Similarly, when the first annular groove 34 and the first sealing ring 71 are arranged on the rib 422, the first sealing ring 71 is compressed between the rib 422 and the cavity wall 91, and the compressed first sealing ring 71 can increase the friction between the rib 422 and the cavity wall 91, thereby further improving the connection stability between the rib 422 and the cavity wall 91.

[0129] In addition, the first sealing ring 71 can be compressed between the rib 422 and the cavity wall 91 , which can improve the flexibility of the distance design between the outer shell 3 and the rib 422 and reduce the processing design accuracy and manufacturing cost of the outer shell 3 and the inner bottom shell 41 and the rib 422 .

[0130] See also Fig.10 As shown, in order to ensure the width of the first annular groove 34 and the width of the first sealing ring 71, in one embodiment, the end of the housing 3 facing the rib 422 can be widened.

[0131] The outer edge of the rib 422 may be flush with the outer edge of the shell 3, or the outer edge of the rib 422 may exceed the outer edge of the shell 3. In addition, the outer dimensions of the rib 422 and the outer dimensions of the shell 3 are both larger than the dimensions of the opening on the cavity wall 91 to ensure that the shell 3 and the rib 422 cannot pass through the opening. In an optional embodiment, the outer edge of the rib 422 exceeds the outer edge of the shell 3 by 0.1 mm to 0.2 mm. Of course, this is only an example, and according to specific needs, the outer edge of the rib 422 may exceed the outer edge of the shell 3 by other values.

[0132] See also Figure 5 , Figure 6 and Fig. 9 As shown, in one embodiment, the exhaust assembly 100 further includes a second sealing ring 72 , which is disposed between the inner wall of the outer shell 3 and the outer wall of the inner bottom shell 41 and is disposed around the first exhaust port 33 and the second exhaust port 413 .

[0133] Since the inner shell 4 is installed into the first cavity 30 through the first opening 37 on the outer shell 3, the inner shell 4 and the outer shell 3 can be connected together by a fastening force in the direction of the first opening 37. In the direction from the inner wall of the outer shell 3 to the outer wall of the inner shell 4, how to apply the fastening force and the magnitude of the fastening force will affect the air tightness of the exhaust path between the inner shell 4 and the outer shell 3.

[0134] In this embodiment, a second sealing ring 72 is provided between the inner bottom shell 41 and the outer shell 3 around the first exhaust port 33 and the second exhaust port 413, which can ensure the sealed connection between the first exhaust port 33 and the exhaust pump 5, ensure the airtightness of the exhaust passage, and avoid the problem of failure of the exhaust causing the compression failure of the airtight bag 92; conversely, the compressed second sealing ring 72 makes the outer shell 3 and the inner bottom shell 41 pressed together, which makes the outer shell 3 and the inner bottom shell 41 further firmly assembled, and further, this can ensure the sealing of the connection between the outer shell 3 and the inner bottom shell 41 on the exhaust path. The present application provides another solution to ensure the stability of the connection between the inner shell 4 and the outer shell 3. The second sealing ring 72 and the aforementioned first connecting column 31 fix the inner shell 4 and the outer shell 3 together from different directions, and the second sealing ring 72 and the aforementioned first connecting column 31 can be used alone or in combination.

[0135] A second annular groove 416 is formed on the inner wall of the outer shell 3 or the outer wall of the inner bottom shell 41, surrounding the first exhaust port 33 and the second exhaust port 413. Figure 5 and Figure 6 As shown, the second sealing ring 72 is arranged in the second annular groove 416, and the natural height of the second sealing ring 72 is greater than the depth of the second annular groove 416. Of course, the height of the compressed second sealing ring 72 is also greater than the depth of the second annular groove 416. That is, no matter what the state of the second sealing ring 72 is, part of it is located in the second annular groove 416 to ensure that it can be compressed as much as possible. When the outer shell 3 and the inner bottom shell 41 are installed in place, the second sealing ring 72 is compressed. The sealing from the first exhaust port 33 to the second exhaust port 413 can be ensured, and then the sealing of each place on the entire exhaust path can be ensured.

[0136] Then, continue to Figure 5 and Figure 6 As shown, in one embodiment, the exhaust assembly 100 further includes a third sealing ring 73 , which is disposed between the impeller 52 and the inner bottom shell 41 and is disposed around the second exhaust port 413 .

[0137] Among them, a third annular groove (not shown) surrounding the second exhaust port 413 is formed on the surface of the frame of the impeller 52 facing the inner bottom shell 41 or on the inner wall of the inner bottom shell 41, and the third sealing ring 73 is arranged in the third annular groove, and the natural height and the height after compression of the third sealing ring 73 are both greater than the depth of the third annular groove. When the impeller 52 and the inner bottom shell 41 are installed in place, the third sealing ring 73 is compressed. The sealing from the second exhaust port 413 to the impeller 52 can be ensured, and then the sealing of all places on the entire exhaust path can be ensured.

[0138] See also Fig.11 and Fig.12As shown, a vent cover 94 is also provided in the airtight bag 92, the vent cover 94 has a certain height, and at least one vent (not shown) is provided on the peripheral wall of the vent cover 94, and the vent connects the sealed cavity 920 of the airtight bag 92 with the exhaust pipe 93. By providing the vent cover 94 with a vent, it is possible to prevent the items in the airtight bag 92, such as clothes, from closing the connection between the exhaust pipe 93 and the airtight bag 92 as the air is discharged, so that the exhaust process is smoother.

[0139] The height of the vent cover 94 is not limited, so as to facilitate processing to form the vent and not occupy too much space in the airtight bag 92. For example, in an optional embodiment, the height of the vent cover 94 is 1 mm to 50 mm.

[0140] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An exhaust assembly, used to be arranged on the cavity wall of a storage device, characterized in that: include: A housing having a first opening and a first cavity in communication with each other; The inner shell comprises an inner bottom shell and a cover plate, wherein the inner bottom shell is provided with a second opening and a second cavity which are in communication with each other, and the cover plate comprises a cover plate body which is arranged at the second opening and closes the second cavity; the inner bottom shell is at least partially arranged in the first cavity; a rib surrounding the second opening is further provided on the periphery of the cover plate body and / or the inner bottom shell, and the mutually adjacent surfaces of the outer shell and the rib are used to clamp the cavity wall of the storage device; and an exhaust pump, at least partially disposed in the second chamber; Among them, at least one first connecting column is protruding on the inner wall of the outer shell, and an avoidance hole for the first connecting column to pass through is provided on the inner bottom shell, and the first connecting column is fixedly connected to the cover body via the avoidance hole.

2. The exhaust assembly according to claim 1, characterized in that A first boss protruding toward the cover plate is provided on the inner wall of the shell, and the first connecting column is formed on the first boss.

3. The exhaust assembly according to claim 2, characterized in that The first boss is formed by a partial area of ​​the outer shell being recessed toward the inner shell.

4. The exhaust assembly according to claim 2, characterized in that An upper portion of the inner bottom shell protrudes toward the cover plate to form a second boss corresponding to the first boss.

5. The exhaust assembly according to claim 4, characterized in that The exhaust assembly also includes a circuit board, which is arranged in the second cavity and connected to the exhaust pump; at least one second connecting column is formed on the second boss, and the second connecting column is fixedly connected to the circuit board; the first bosses are respectively located on opposite sides of the exhaust pump; at least two first connecting columns are provided on each of the first bosses; on each of the first bosses, the second connecting column is provided between the first connecting columns.

6. The exhaust assembly according to any one of claims 1 to 5, characterized in that The retaining edge is formed on the cover plate and connected to the periphery of the cover plate body; the cover plate body and the retaining edge are integrally formed, and the retaining edge and the mutually adjacent surfaces of the inner bottom shell are non-detachably connected.

7. The exhaust assembly according to any one of claims 1 to 5, characterized in that A first threaded hole is formed on the first connecting column, a first mounting hole is formed on the cover plate, a threaded section of the threaded member passes through the first mounting hole and is threadedly engaged in the first threaded hole, and a head of the threaded member abuts against a side of the cover plate away from the housing.

8. The exhaust assembly according to any one of claims 1 to 5, characterized in that The rib is formed on the cover plate and connected to the periphery of the cover plate body; a first annular groove surrounding the first opening is provided on the surface of the outer shell facing the rib and / or on the surface of the rib facing the outer shell; the exhaust assembly also includes a first sealing ring, which is provided in the first annular groove, and a natural height of the first sealing ring is greater than a depth of the first annular groove.

9. The exhaust assembly according to any one of claims 1 to 5, characterized in that At least one abutting rib is disposed on the inner side wall of the outer shell, and the abutting rib is used to abut against the outer side wall of the inner bottom shell.

10. A storage device, characterized in that: The invention comprises a device body and an exhaust assembly as claimed in any one of claims 1 to 9, wherein the device body comprises cavity walls connected to each other, and an airtight bag arranged in a space formed by the cavity walls, an opening is provided on the cavity wall, the shell passes through the opening, and the mutually adjacent surfaces of the shell and the retaining edge jointly clamp the cavity wall.

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