A detachable exhaust device

Abstract

The detachable exhaust device comprises a shell provided with an inner and outer through hole and an exhaust fan installed on the shell, and a fixing frame detachably installed on the shell and the exhaust fan is detachably installed on the fixing frame. The fixing frame is detachably installed on the shell, and the installation and maintenance of the fixing frame are facilitated. The detachable exhaust fan is installed on the fixing frame, and the installation and maintenance of the exhaust fan on the fixing frame are realized. The fixing frame and the exhaust fan can be detached and installed, and manufacturers need not produce different sizes of the shell to adapt to the size of the exhaust fan when producing exhaust devices with different powers, and only the fixing frame and the exhaust fan need to be replaced, so that the uniformity of the exhaust device shell is realized.

Description

Technical Field

[0001] This utility model relates to the field of RV accessories technology, specifically to a detachable ventilation device. Background Technology

[0002] With the rising popularity of outdoor travel, motorhomes, which combine living and driving functions, are gradually attracting more attention. However, motorhomes have enclosed spaces, and the ventilation system, as a core component for ventilation, plays a crucial role in removing odors from inside the vehicle.

[0003] Chinese utility model patent application number CN202420473139 discloses a motorhome exhaust vent, including a base fixedly installed at the motorhome exhaust vent, an exhaust fan fixedly installed on the base to deliver air to the exhaust vent, an exhaust fan covered with a protective shell, the exhaust fan including a drive motor and a plurality of fan blade units spaced around the drive motor, the fan blade unit including a connecting part fixedly installed on the drive motor in an inclined state, and a guide part connected to the connecting part and extending in an arc shape away from the drive motor.

[0004] Based on the aforementioned technologies, the inventors believe that different groups have different power requirements for exhaust fans. Since exhaust fans of different power often have different sizes, manufacturers need to produce housings of different sizes to accommodate the size of the exhaust fans when producing exhaust devices of different power, making it impossible to achieve uniformity in the housing of exhaust devices. Utility Model Content

[0005] The present invention aims to solve the aforementioned existing problems by providing a detachable exhaust device that only requires replacement of a portion of the exhaust device, thereby achieving standardization of the exhaust device housing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution: a detachable ventilation device, comprising a housing that extends through the interior and exterior and an exhaust fan mounted on the housing, wherein the housing is provided with a fixing frame that can be detachably mounted on the housing, and the exhaust fan can be detachably mounted on the fixing frame.

[0007] This application provides a detachable mounting bracket on the housing, which facilitates the installation and maintenance of the bracket; a detachable exhaust fan is installed on the mounting bracket, enabling the installation and maintenance of the exhaust fan on the mounting bracket; both the mounting bracket and the exhaust fan can be disassembled and installed, so manufacturers do not need to produce housings of different sizes to accommodate the size of the exhaust fan when producing exhaust devices with different power, thus achieving the standardization of the exhaust device housing.

[0008] Preferably, the fixing frame has an outwardly extending insertion portion, the housing has a corresponding slot, the fixing frame has an outwardly extending fixing end in the direction opposite to the insertion portion, and the housing has a limiting portion located below the fixing end for detachable connection with the fixing end. The outwardly extending insertion portion on the fixing frame engages with the slot on the housing to achieve fixed positioning between the fixing frame and the housing; the outwardly extending fixing end on the fixing frame in the direction opposite to the insertion portion, and the limiting portion located below the fixing end on the housing, allow for detachable connection of the fixing end, further securing the fixing frame.

[0009] Preferably, the insertion part and the slot are horizontally arranged relative to the fixing frame, and the lower end of the fixing end has a mounting surface that gradually slopes downward from the outside to the inside. The limiting part is located below the fixing end, and the upper surface of the fixing end is arranged opposite to the mounting surface, so that the fixing frame is mounted horizontally on the housing. Setting the mounting surface below the fixing end to slope from the outside to the inside further optimizes the structure of the fixing end, thereby ensuring better contact between the fixing end and the limiting part, and at the same time reducing the material used for the fixing end.

[0010] Preferably, the insertion part includes an insertion strip fixedly installed on the edge of the fixing frame and a slot formed on the outer side of the lower end of the insertion strip. The slot includes a limiting strip fixedly installed on the inner wall of the housing and surrounding an insertion space for insertion of the insertion strip, and a lower limiting block located within the insertion space and protruding from the inner wall of the housing, corresponding to the slot. The insertion strip and the limiting strip cooperate to fix the insertion part in the slot, preventing the insertion part from moving upward, thus limiting the insertion part in the upward direction; the slot and the lower limiting block cooperate to fix the insertion part in the slot, preventing the insertion part from moving downward, thus limiting the insertion part in the downward direction.

[0011] Preferably, the mounting frame is provided with several pairs of opposing deformable snap-fit ​​connectors extending towards the exhaust fan, and the exhaust fan is snapped and fixed between the opposing deformable snap-fit ​​connectors. By providing several pairs of opposing deformable snap-fit ​​connectors extending towards the exhaust fan on the mounting frame, the exhaust fan is snapped into these deformable snap-fit ​​connectors, thereby ensuring that the exhaust fan is firmly fixed to the deformable snap-fit ​​connectors, thus reducing the phenomenon of the exhaust fan shaking or falling off during operation.

[0012] Preferably, the deformable snap-fit ​​connector includes a base fixedly mounted on the edge of the mounting frame, an elastic arm connected to the base, and a snap-fit ​​protrusion fixedly connected to the elastic arm. The snap-fit ​​protrusion snaps onto the edge of the exhaust fan through the elastic deformation of the elastic arm. The base serves to fix the connector, ensuring the overall structural stability; the elastic arm has a certain elastic deformation capacity, and by fixing the snap-fit ​​protrusion to the elastic arm, the elastic deformation of the elastic arm allows it to snap tightly onto the edge of the exhaust fan, ensuring the exhaust fan is reliably mounted on the mounting frame.

[0013] Preferably, the housing includes a ring-shaped mounting plate and an edging portion that surrounds the mounting plate and extends towards the back of the mounting plate. The inner side of the edging portion encloses a mounting cavity for mounting a mounting bracket and an exhaust fan. The mounting plate primarily supports and secures the entire housing structure; the edging portion surrounds the mounting plate and extends towards the back of the mounting plate. The mounting cavity formed by the back of the mounting plate and the inner side of the edging portion provides space for mounting the mounting bracket and exhaust fan, ensuring the stability of the components and facilitating subsequent maintenance and replacement.

[0014] Preferably, the mounting bracket has several positioning elements on its four edges for positioning the exhaust fan, and the exhaust fan has positioning holes that cooperate with the positioning elements for positioning. Providing positioning elements and corresponding positioning holes facilitates the installation of the exhaust fan.

[0015] Preferably, the middle part of the fixing frame is a hollow annular structure, and the hollow annular structure is provided with several reinforcing ribs extending in the radial direction. The hollow annular structure guides the airflow in the room, and the reinforcing ribs on the hollow annular structure improve the stability of the fixing frame.

[0016] Preferably, the fixing frame is integrally injection molded. Integral injection molding of the fixing frame ensures the stability of the connections between its various components.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a detachable mounting bracket on the housing, which facilitates the installation and maintenance of the mounting bracket; a detachable exhaust fan is installed on the mounting bracket, realizing the installation and maintenance of the exhaust fan on the mounting bracket; both the mounting bracket and the exhaust fan can be disassembled and installed, so when manufacturers produce exhaust devices with different power, they do not need to produce housings of different sizes to accommodate the size of the exhaust fan, but only need to replace the mounting bracket and the exhaust fan, thereby achieving the standardization of the exhaust device housing. Attached Figure Description

[0018] Figure 1 This is an exploded view of the present invention; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of the shell of this utility model; Figure 5 This is a schematic diagram of the structure of the fixing frame of this utility model; Figure 6 This is a schematic diagram of the fixing bracket of this utility model installed on the housing.

[0019] Explanation of reference numerals in the attached drawings: 1. Shell; 11. Slot; 111. Limiting strip; 112. Lower limit block; 12. Limiting part; 13. Mounting plate; 14. Edge banding part; 15. Mounting cavity; 2. Exhaust fan; 21. Positioning hole; 3. Fixing bracket; 31. Insertion part; 311. Insert strip; 312. Slot; 32. Fixing end; 321. Mounting surface; 33. Deformable snap-fit ​​connector; 331. Base; 332. Snap-fit ​​protrusion; 333. Elastic arm; 34. Positioning element; 35. Hollow ring structure; 351. Reinforcing rib. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Combination Figure 1 and Figure 3 As shown, this utility model discloses a detachable ventilation device, including a housing 1 that extends through the inside and outside and an exhaust fan 2 installed on the housing 1. The housing 1 is provided with a fixing frame 3 that can be detachably installed on the housing 1, and the exhaust fan 2 can be detachably installed on the fixing frame 3.

[0022] This application provides a detachable mounting bracket 3 on the housing 1, which facilitates the installation and maintenance of the mounting bracket 3; a detachable exhaust fan 2 is installed on the mounting bracket 3, which enables the installation and maintenance of the exhaust fan 2 on the mounting bracket 3; both the mounting bracket 3 and the exhaust fan 2 can be disassembled and installed, so the manufacturer does not need to produce housings 1 of different sizes to accommodate the size of the exhaust fan 2 when producing exhaust devices of different power, thereby achieving the standardization of the housing 1 of the exhaust device.

[0023] Combination Figure 1 , Figure 3 and Figure 6As shown, the fixing frame 3 has an outwardly extending insertion part 31, and the housing 1 has a corresponding slot 11. The fixing frame 3 has an outwardly extending fixing end 32 in the direction opposite to the insertion part 31, and the housing 1 has a limiting part 12 located below the fixing end 32 for detachable connection with the fixing end 32. By cooperating with the slot 11 on the housing 1, the fixing frame 3 and the housing 1 are fixedly limited. The fixing end 32 of the fixing frame 3 in the direction opposite to the insertion part 31, and the limiting part 12 located below the fixing end 32 on the housing 1, allow for detachable connection of the fixing end 32, further achieving the fixing of the fixing frame 3.

[0024] Meanwhile, the insertion part 31 and the slot 11 are horizontally arranged relative to the fixing frame 3. The lower end of the fixing end 32 is provided with a mounting surface 321 that gradually slopes downward from the outside to the inside. The limiting part 12 is located below the fixing end 32, and the upper surface of the fixing end 32 is arranged opposite to the mounting surface 321, so that the fixing frame 3 is mounted horizontally on the housing 1. During the installation process, the insertion part 31 of the fixing frame 3 is first inserted into the slot 11 of the housing 1 to achieve initial positioning and fixing of the fixing frame 3. At this time, the fixing end 32 is inclined to the housing 1. In order to ensure that the fixing end 32 and the limiting part 12 can achieve a fixed fit, the fixing end 32 gradually moves closer to the limiting part 12. Setting the mounting surface 321 below the fixing end 32 to slope downward from the outside to the inside further optimizes the structure of the fixing end 32, thereby ensuring better contact between the fixing end 32 and the limiting part 12, and at the same time reducing the use of material for the fixing end 32, saving materials.

[0025] Combination Figure 1 , Figure 5 and Figure 6 As shown, the insertion part 31 includes an insertion strip 311 fixedly installed on the edge of the fixing frame 3 and a slot 312 formed on the outer side of the lower end of the insertion strip 311. The slot 11 includes a limiting strip 111 fixedly installed on the inner wall of the housing 1 and surrounding an insertion space for insertion of the insertion strip 311, and a lower limiting block 112 located in the insertion space and protruding from the inner wall of the housing 1 corresponding to the slot 312. In this technical solution, the insertion strip 311 and the limiting strip 111 cooperate with each other, so that the insertion part 31 is fixedly installed on the slot 11, preventing the insertion part 31 from moving upward, thus achieving the limitation of the insertion part 31 in the upward direction; the slot 312 and the lower limiting block 112 cooperate with each other, so that the insertion part 31 is fixedly installed on the slot 11, preventing the insertion part 31 from moving downward, thus achieving the limitation of the insertion part 31 in the downward direction.

[0026] Combination Figure 2 and Figure 3As shown, the mounting bracket 3 is provided with several pairs of deformable snap-fit ​​connectors 33 that are arranged opposite each other and extend towards the exhaust fan 2. The exhaust fan 2 is snapped and fixed between the oppositely arranged deformable snap-fit ​​connectors 33. This application provides several pairs of oppositely arranged deformable snap-fit ​​connectors 33 that extend towards the exhaust fan 2 on the mounting bracket 3, so that the exhaust fan 2 can be snapped into these deformable snap-fit ​​connectors 33, thereby making the exhaust fan 2 firmly fixed to the deformable snap-fit ​​connectors 33, thereby reducing the phenomenon of shaking or falling off the exhaust fan 2 during operation and providing a stable working environment for the exhaust fan 2.

[0027] Reference Figure 2 As shown, the deformable snap-fit ​​connector 33 includes a base 331 fixedly mounted on the edge of the mounting frame 3, an elastic arm 333 connected to the base 331, and a snap-fit ​​protrusion 332 fixedly connected to the elastic arm 333. The snap-fit ​​protrusion 332 snaps onto the edge of the exhaust fan 2 through the elastic deformation of the elastic arm 333. The base 331, fixedly mounted on the edge of the mounting frame 3, serves to support and maintain the stability of the overall structure. The elastic arm 333 has a certain elastic deformation capability. The snap-fit ​​protrusion 332 is fixedly connected to the elastic arm 333. Through the elastic deformation of the elastic arm 333, it can be tightly snapped onto the edge of the exhaust fan 2, so that the exhaust fan 2 can be reliably mounted on the mounting frame 3. During installation, the exhaust fan 2 is first placed on the mounting bracket 3. Then, the elastic deformation of the elastic arm 333 is used to make the fastening protrusion 332 tightly fasten to the edge of the exhaust fan 2, thereby achieving a secure installation of the exhaust fan 2. No additional fastening tools are required to complete the fixing process, which improves the installation efficiency and flexibility, while also ensuring the stability of the exhaust fan 2 installation.

[0028] Combination Figure 1 and Figure 4 As shown, the housing 1 includes a ring-shaped mounting plate 13 and a rim portion 14 that surrounds the mounting plate 13 and extends towards the back of the mounting plate 13. The inner side of the rim portion 14 surrounds a mounting cavity 15 for mounting the mounting bracket 3 and the exhaust fan 2. The mounting plate 13 is mainly used to support and fix the entire structure of the housing 1. The rim portion 14 surrounds the mounting plate 13 and extends towards the back of the mounting plate 13. On the one hand, the rim portion 14 helps to enhance the strength and stability of the housing 1 structure. On the other hand, the mounting cavity 15 formed by the back of the mounting plate 13 and the inner side of the rim portion 14 provides space for mounting the mounting bracket 3 and the exhaust fan 2, ensuring the stability of the installation of each component and facilitating subsequent maintenance and replacement, ultimately achieving overall heat dissipation optimization and structural stability of the equipment.

[0029] Combination Figure 1 and Figure 3As shown, the mounting bracket 3 has several positioning elements 34 on its four edges for positioning the exhaust fan 2. The exhaust fan 2 has positioning holes 21 that cooperate with the positioning elements 34 for positioning. When installing the exhaust fan 2, the positioning holes 21 on the four edges of the exhaust fan 2 are aligned with the corresponding positioning elements 34 on the mounting bracket 3, and then the positioning holes 21 are passed through the positioning elements 34 to achieve positioning of the exhaust fan 2. This reduces the possibility of errors during the installation of the exhaust fan 2 and also provides a fixing effect for the exhaust fan 2.

[0030] Combination Figure 1 and Figure 5 As shown, the middle part of the fixing frame 3 is a hollow annular structure 35, and the hollow annular structure 35 is provided with several reinforcing ribs 351 extending in the radial direction. The hollow annular structure 35 guides the airflow in the room, and the reinforcing ribs 351 on the hollow annular structure 35 improve the stability of the fixing frame 3.

[0031] Furthermore, the fixing frame 3 is integrally injection molded. By integrally injection molding the fixing frame 3 with the mounting part and other components, the connection between the components is more secure, further ensuring the stability of the fixing frame 3.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A detachable ventilation device, comprising a housing (1) extending through the interior and exterior, and an exhaust fan (2) mounted on the housing (1), characterized in that, The housing (1) is provided with a fixing frame (3) that can be detachably installed on the housing (1), and the exhaust fan (2) can be detachably installed on the fixing frame (3).

2. The detachable exhaust device according to claim 1, characterized in that, The fixing frame (3) is provided with an outwardly extending plug-in portion (31), the housing (1) is provided with a slot (11) corresponding to the plug-in portion (31), the fixing frame (3) is provided with an outwardly extending fixing end (32) in the direction opposite to the plug-in portion (31), and the housing (1) is provided with a limiting portion (12) located below the fixing end (32) for detachable connection with the fixing end (32).

3. A detachable exhaust device according to claim 2, characterized in that, The plug-in part (31) and the slot (11) are horizontally arranged relative to the fixing frame (3). The lower end of the fixing end (32) is provided with a mounting surface (321) that is gradually inclined downward from the outside to the inside. The limiting part (12) is located below the fixing end (32) and the upper end surface of the fixing end (32) is arranged opposite to the mounting surface (321) so that the fixing frame (3) is horizontally mounted on the housing (1).

4. A detachable exhaust device according to claim 2, characterized in that, The insertion part (31) includes an insertion strip (311) fixedly installed on the edge of the fixing frame (3) and a slot (312) opened on the outer side of the lower end of the insertion strip (311). The slot (11) includes a limiting strip (111) fixedly installed on the inner wall of the housing (1) and surrounding an insertion space for insertion of the insertion strip (311) and a lower limiting block (112) located in the insertion space and protruding on the inner wall of the housing (1) corresponding to the slot (312).

5. A detachable exhaust device according to claim 1, characterized in that, The fixing frame (3) is provided with several pairs of deformable snap-fit ​​connectors (33) that are arranged opposite to each other and extend toward the exhaust fan (2). The exhaust fan (2) is snapped and fixed between the deformable snap-fit ​​connectors (33) arranged opposite to each other.

6. A detachable exhaust device according to claim 5, characterized in that, The The deformable snap connector (33) includes a base (331) fixedly mounted on the edge of the fixing frame (3), an elastic arm (333) connected to the base (331), and a snap-fit ​​protrusion (332) fixedly connected to the elastic arm (333). The snap-fit ​​protrusion (332) snaps onto the edge of the exhaust fan (2) through the elastic deformation of the elastic arm (333).

7. A detachable exhaust device according to claim 1, characterized in that, The housing (1) includes a mounting plate (13) arranged in an annular shape and a edging portion (14) arranged around the mounting plate (13) and extending to the back of the mounting plate (13). The inner side of the edging portion (14) is surrounded by a mounting cavity (15) for mounting the mounting bracket (3) and the exhaust fan (2).

8. A detachable exhaust device according to claim 1, characterized in that, The mounting bracket (3) has several positioning parts (34) on its four sides for positioning the exhaust fan (2), and the exhaust fan (2) has positioning holes (21) that cooperate with the positioning parts (34) for positioning.

9. A detachable exhaust device according to claim 1, characterized in that, The middle part of the fixing frame (3) is a hollow ring structure (35), and the hollow ring structure (35) is provided with a number of reinforcing ribs (351) extending in the radial direction.

10. A detachable exhaust device according to claim 1, characterized in that, The fixing frame (3) is integrally injection molded.

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