Fixing structure of exhaust fan

Abstract

The utility model relates to exhaust fan technical field, more particularly, exhaust fan's fixed structure. Fixed structure includes: installation through slot, fixed buckle, locking piece and clamping piece, and installation through slot is located on exhaust fan, fixed buckle is equipped with meshing portion and mounting hole, and fixed buckle is installed in the inner wall one side of installation through slot, and locking piece is located in the outer wall one side of installation through slot, and locking piece is cooperated with mounting hole, is used to lock fixed buckle in installation through slot, and the opposite end is abutted with the ceiling with meshing portion intermeshing one end, is used to fix exhaust fan, has solved the problem that when adopting fixed screw fixed exhaust fan, screw is easy to age and loosen and adopts screw fixed and is not convenient for dismounting exhaust fan.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fan technology, and more specifically, to a fixing structure for an exhaust fan. Background Technology

[0002] Current bathroom exhaust fan installations mostly use recessed ceiling mounting. An opening is drilled in the ceiling, the exhaust fan body is embedded, and the outer casing's skirt abuts the edge of the ceiling opening and is secured with screws. The entire exhaust fan hangs from the ceiling. However, with prolonged use, the ceiling and the screws used for fixing can age and loosen under the fan's rotation, potentially causing it to fall off and posing a safety risk. Furthermore, current technology requires aligning each mounting hole and screwing in screws for installation and removal, which is complex, especially requiring high precision in hole positioning, resulting in low installation efficiency. Utility Model Content

[0003] The problem solved by this utility model is that when fixing an exhaust fan with screws, the screws are prone to aging and loosening, and it is inconvenient to fix and disassemble the exhaust fan with screws.

[0004] To solve the above problems, the present invention adopts the following technical solution: a fixing structure for an exhaust fan, the fixing structure including: a mounting groove, a fixing buckle, a locking member and a snap-fit ​​member, the mounting groove being provided on the exhaust fan; the fixing buckle having an engaging part and a mounting hole, the fixing buckle being installed on one side of the inner wall of the mounting groove, the locking member being provided on one side of the outer wall of the mounting groove, the locking member cooperating with the mounting hole to lock the fixing buckle in the mounting groove; one end of the snap-fit ​​member engaging with the engaging part, and the other end abutting against the ceiling to fix the exhaust fan.

[0005] Compared with existing technologies, the technical effects achieved by this solution are as follows: First, by using a locking structure of a fastener and a snap-fit, instead of the traditional method of fixing with screws one by one, installation can be completed quickly, significantly simplifying the operation steps and improving installation efficiency. Second, one end of the snap-fit ​​is locked to the fastener through the engagement part, while the other end abuts against the ceiling, forming a double fixing structure of abutment and engagement. Compared with traditional screw fixing, this can disperse the vibration load during the operation of the exhaust fan, reduce the risk of loosening due to long-term vibration, and improve the service life of the device.

[0006] Furthermore, the snap-fit ​​component includes a rack and an abutment block. One end of the snap-fit ​​component is provided with a rack, and the opposite end is provided with an abutment block. The abutment block protrudes outward from the surface of the rack and is fixed to the ceiling.

[0007] Compared with existing technologies, the technical effects achieved by this solution are as follows: First, the unidirectional sawtooth meshing structure of the rack and the fixing buckle creates a unidirectional locking effect. Through the unidirectional force characteristics of the toothed slope surface, the locking component can only move in a fixed direction, effectively resisting vibrations and gravitational loads during exhaust fan operation, avoiding the risk of detachment caused by loosening traditional screws, and significantly enhancing long-term stability. Second, the abutment block protrudes outward from the rack surface and abuts against the ceiling, allowing for quick positioning of the fixing buckle during installation. Third, the abutment block increases the contact area between the locking component and the ceiling, transforming the point fixing of traditional screws into surface abutment, dispersing localized stress, and reducing the risk of ceiling damage due to concentrated force, especially suitable for low-strength ceiling materials such as gypsum board.

[0008] Furthermore, the snap-fit ​​component is provided with reinforcing ribs, which are located between the rack and the abutment block and connect the rack and the abutment block, thereby improving the strength of the snap-fit ​​component.

[0009] Compared with existing technologies, the technical effects achieved by this solution are as follows: First, the reinforced ribs connecting the rack and the abutment block form a triangular support structure, which effectively disperses stress concentration in the snap-fit ​​components under load, preventing breakage or deformation at the connection between the rack and the abutment block due to long-term stress, thus improving the overall structural durability. Second, the vibration of the exhaust fan during operation is transmitted to the fixed structure through the snap-fit ​​components. The reinforced ribs enhance the bending resistance of the snap-fit ​​components, reducing the risk of loosening of the meshing teeth or displacement of the abutment block due to vibration, ensuring stable engagement between the fixing buckle and the rack, and further reducing the safety hazard of the exhaust fan falling off.

[0010] Furthermore, the meshing part is provided with a meshing groove and a release bar. The meshing groove is adapted to the shape of the rack, and the bottom of the meshing groove is provided with a release bar. When the rack meshes with the meshing groove, the release bar is pushed away from the rack, and the snap fastener can disengage from the fixing buckle.

[0011] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: By setting a release strip at the bottom of the meshing groove, when it is necessary to disassemble the exhaust fan, simply use a tool to push the release strip away from the rack to release the engagement between the fixing buckle and the rack. There is no need to remove the screws or damage the ceiling structure. This solves the problem of difficult disassembly caused by corrosion and stripping of traditional screw fixing methods, and significantly improves the convenience of maintenance.

[0012] Furthermore, the release bar includes an elastic wall and a protruding block. One end of the elastic wall is connected to the engagement groove, and the other end is spaced apart from the engagement groove to form a release space. The protruding block protrudes outward relative to the outer wall of the elastic wall and is used to actuate the elastic wall.

[0013] Compared with existing technologies, the technical advantages achieved by this solution are as follows: First, the elastic deformation characteristics of the elastic wall provide cushioning during disassembly, preventing damage to the fasteners, racks, or ceiling due to forceful prying. During normal use, the elastic wall maintains its initial shape, ensuring a tight engagement between the meshing groove and the rack, without affecting the locking strength of the fixing structure, achieving both stability under stress and flexibility during disassembly. Second, the modular design of the elastic wall and the protruding block adapts to the internal space of fasteners of different sizes. Furthermore, the exposed structure of the protruding block, which protrudes outward relative to the outer wall of the elastic wall, provides a unified operating interface, facilitating standardized production and maintenance, and lowering the operational threshold for installers.

[0014] Furthermore, at least four fixing buckles and mounting slots are provided and are evenly distributed along the circumference of the exhaust fan.

[0015] Compared with existing technologies, the technical effects achieved by this solution are as follows: First, the circumferentially evenly distributed fixing buckles form a symmetrical multi-point support structure, which can evenly distribute the weight of the exhaust fan and the vibration load during operation, avoiding local stress concentration caused by traditional single-point or asymmetrical fixing, significantly improving the overall stability of the connection between the exhaust fan and the ceiling, and reducing the risk of loosening or falling off due to uneven stress. Second, the positions of multiple fixing buckles can be independently adjusted in the installation slot to adapt to ceiling openings of different sizes. Even if there are deviations in the opening size, precise positioning can be achieved by adjusting the position of each fixing buckle, solving the problem of high hole accuracy requirements in traditional embedded installations.

[0016] Furthermore, the fixing structure also includes a mounting bracket, which is located between the exhaust fan and the ceiling.

[0017] Compared with existing technologies, the technical advantages of this solution are as follows: First, the mounting brackets can be fixed to the original building structure truss via side supports, transferring the support force of the exhaust fan from the traditional reliance on the ceiling to the main building structure. This avoids fixing failures caused by aging or insufficient strength of the ceiling material, and is especially suitable for low-strength ceiling materials, significantly reducing the risk of exhaust fan detachment. Second, when the ceiling cannot provide sufficient support strength, the mounting brackets can transform the fixing structure into a force-bearing path from the exhaust fan housing to the clips, then to the mounting brackets, and finally to the side supports. This is applicable to lightweight ceilings and older buildings.

[0018] Furthermore, the mounting bracket is equipped with a crossbar and an adjusting rod, which are connected to form a rectangular frame. The crossbar is fixed to the side support of the ceiling, and the length of the adjusting rod can be adjusted to fit the ceiling.

[0019] Compared with existing technologies, the technical advantages of this solution are as follows: First, the telescopic design of the adjusting rod allows for flexible adjustment of the overall length of the mounting bracket, precisely adapting to different sizes of exhaust fan housings and ceiling openings. This overcomes the limitations of traditional fixed structures in terms of installation space requirements, reducing installation costs and customization needs. Second, the crossbar is fixed in contact with the side supports, directly transferring the weight and vibration load of the exhaust fan to the main building structure, avoiding the insufficient strength problem caused by relying on the ceiling for load-bearing in traditional methods.

[0020] Furthermore, the crossbar is provided with locking holes, which are fixed to the side supports by bolts.

[0021] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the bolted connection has higher structural strength and vibration resistance, which can firmly fix the mounting bracket to the side support. The weight and operating load of the exhaust fan are transferred to the side support through the bolts, and then to the building structure. It is especially suitable for heavy exhaust fans or long-term vibration conditions when the ceiling strength is insufficient, and significantly reduces the risk of falling off.

[0022] Furthermore, the adjusting rod is equipped with an extension rod and a stop rod. The extension rod can extend relative to the stop rod to adjust the length of the adjusting rod.

[0023] Compared with existing technologies, the technical effects achieved by this solution are as follows: the length of the adjustment rod can be adjusted by the relative sliding of the extension rod and the abutment rod. Compared with traditional fixed-length brackets, it can more accurately adapt to the size difference between the ceiling opening and the exhaust fan housing, and is especially suitable for non-standard installation scenarios, avoiding installation gaps or stress concentration problems caused by size deviations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the fixing structure of an exhaust fan according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the rack structure of a fixing structure for an exhaust fan according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the fixing buckle of a fixing structure for an exhaust fan according to an embodiment of the present utility model;

[0027] Figure 4 This is a structural schematic diagram of the fixing buckle of a fixing structure for an exhaust fan according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the mounting bracket for fixing an exhaust fan according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of one installation method of the fixing structure of an exhaust fan according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of a second installation method for a fixing structure of an exhaust fan according to an embodiment of the present utility model;

[0031] Figure 8 This is a schematic diagram of a third method for installing a fixing structure of an exhaust fan according to an embodiment of the present utility model;

[0032] Figure 9 This is a schematic diagram of a fourth method for installing a fixing structure of an exhaust fan according to an embodiment of the present utility model;

[0033] Figure 10 This is a schematic diagram of the fixing structure of an exhaust fan according to an embodiment of the present invention, showing its connection and fixing to a side support.

[0034] Explanation of reference numerals in the attached drawings: 100-Fixed structure; 1-Snap-fit ​​component; 2-Fixing buckle; 4-Locking component; 30-Mounting through slot; 11-Rack; 12-Abutting block; 13-Reinforcing rib; 20-Engine groove; 21-Disengagement bar; 210-Elastic wall; 211-Protrusion block; 22-Mounting hole; 5-Mounting bracket; 51-Cross bar; 52-Adjusting rod; 53-Locking hole; 54-Abutting rod; 55-Extending rod; 200-Side support. Detailed Implementation

[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0036] See Figures 1-10 To solve the above problems, the present invention adopts the following technical solution: a fixing structure 100 for an exhaust fan, the fixing structure 100 including: a mounting groove 30, a fixing buckle 2, a locking member 4 and a snap-fit ​​member 1, the mounting groove 30 being provided on the exhaust fan; the fixing buckle 2 having an engaging part and a mounting hole 22, the fixing buckle 2 being installed on one side of the inner wall of the mounting groove 30, the locking member 4 being provided on one side of the outer wall of the mounting groove 30, the locking member 4 cooperating with the mounting hole 22 to lock the fixing buckle 2 in the mounting groove 30; one end of the snap-fit ​​member 1 engaging with the engaging part, and the other end abutting against the ceiling to fix the exhaust fan.

[0037] See Figure 2 , Figure 3 and Figure 4 For example, the length direction of the mounting slot 30 is set parallel to the lateral direction of the exhaust fan.

[0038] Firstly, by employing the engaging structure of the fixing buckle 2 and the snap-fit ​​component 1, the traditional method of fixing with screws one by one can be replaced, allowing for rapid installation, significantly simplifying the operation steps and improving installation efficiency. Secondly, one end of the snap-fit ​​component 1 is locked to the fixing buckle 2 through the engaging part, while the other end abuts against the ceiling, forming a double fixing structure of abutment and engagement. Compared with traditional screw fixing, this can distribute the vibration load during the operation of the exhaust fan, reduce the risk of loosening due to long-term vibration, and improve the service life of the device. Thirdly, the design of the mounting slot 30 allows the fixing buckle 2 to move and adjust its position in the lateral direction of the exhaust fan, adapting to differences in ceiling opening sizes and avoiding installation difficulties caused by hole position deviations.

[0039] Specifically, see Figure 2 The snap-fit ​​component 1 includes a rack 11 and an abutment block 12. One end of the snap-fit ​​component 1 is provided with a rack 11, and the other end is provided with an abutment block 12. The abutment block 12 protrudes outward from the surface of the rack 11 and is fixed to the ceiling.

[0040] Firstly, the unidirectional serrated engagement structure between the rack 11 and the fixing buckle 2 creates a unidirectional locking effect. Through the unidirectional force characteristics of the toothed slope surface, the locking element 1 can only move in a fixed direction, effectively resisting vibrations and gravitational loads during exhaust fan operation. This avoids the risk of detachment caused by loosening traditional screws, significantly enhancing long-term stability. Secondly, the abutment block 12 protrudes outward from the surface of the rack 11 and abuts against the ceiling. During installation, the fixing buckle 2 can be quickly positioned using the abutment block 12. Thirdly, the abutment block 12 increases the contact area between the locking element 1 and the ceiling, transforming the point fixing of traditional screws into surface abutment, dispersing local stress, and reducing the risk of ceiling damage due to concentrated force. This is especially suitable for low-strength ceiling materials such as gypsum board.

[0041] Specifically, see Figure 2 The snap-fit ​​component 1 is provided with a reinforcing rib 13, which is located between the rack 11 and the abutment block 12 and connects the rack 11 and the abutment block 12 to improve the strength of the snap-fit ​​component 1.

[0042] Firstly, the reinforced rib 13 connects the rack 11 and the abutment block 12, forming a triangular support structure. This effectively disperses the stress concentration of the snap-fit ​​component 1 under load, preventing breakage or deformation at the connection between the rack 11 and the abutment block 12 due to long-term stress, thus improving the overall structural durability. Secondly, the vibration of the exhaust fan during operation is transmitted to the fixed structure 100 through the snap-fit ​​component 1. The reinforced rib 13 enhances the bending resistance of the snap-fit ​​component 1, reducing the risk of loosening of the meshing teeth or displacement of the abutment block 12 due to vibration. This ensures stable meshing between the fixing buckle 2 and the rack 11, further reducing the safety hazard of the exhaust fan falling off.

[0043] Specifically, see Figure 3 and Figure 4The meshing part is provided with a meshing groove 20 and a release bar 21. The meshing groove 20 is adapted to the shape of the rack 11, and the bottom of the meshing groove 20 is provided with a release bar 21. When the rack 11 meshes with the meshing groove 20, the release bar 21 is pushed away from the rack 11, and the snap fastener 1 can be disengaged from the fixing buckle 2.

[0044] By setting a release bar 21 at the bottom of the engagement groove 20, when the exhaust fan needs to be disassembled, simply move the release bar 21 away from the rack 11 to release the engagement state between the fixing buckle 2 and the rack 11. There is no need to remove the screws or damage the ceiling structure. This solves the problem of difficult disassembly caused by corrosion and stripping of threads in traditional screw fixing methods, and significantly improves the convenience of maintenance.

[0045] To illustrate again, a tool can be inserted into the gap between the release bar 21 and the engagement groove 20 to pull out the release bar 21, thereby facilitating the disassembly of the rack 11.

[0046] Specifically, see Figure 3 and Figure 4 The release bar 21 includes an elastic wall 210 and a protrusion 211. One end of the elastic wall 210 is connected to the engagement groove 20, and the other end is spaced apart from the engagement groove 20 to form a release space. The protrusion 211 protrudes outward relative to the outer wall of the elastic wall 210 and is used to push the elastic wall 210.

[0047] For example, the protrusion 211 is designed as a snap-on shape for easy disassembly.

[0048] Firstly, the elastic deformation characteristics of the elastic wall 210 provide a buffer during disassembly, preventing damage to the fixing buckle 2, rack 11, or ceiling due to violent prying. During normal use, the elastic wall 210 maintains its initial shape, ensuring a tight engagement between the meshing groove 20 and rack 11, without affecting the locking strength of the fixing structure 100, achieving both stability under force and flexibility during disassembly. Secondly, the modular design of the elastic wall 210 and the protrusion 211 adapts to the internal space of fixing buckles 2 of different sizes. Furthermore, the exposed structure of the protrusion 211, which protrudes outward relative to the outer wall of the elastic wall 210, provides a unified operating interface, facilitating standardized production and maintenance, and lowering the operational threshold for installers.

[0049] Specifically, see Figure 3 and Figure 4 There are at least four fixing buckles 2 and mounting slots 30, which are evenly distributed along the circumference of the exhaust fan.

[0050] Firstly, the evenly distributed circumferential fixing clips 2 form a symmetrical multi-point support structure, which can evenly distribute the weight of the exhaust fan and the vibration load during operation, avoiding local stress concentration caused by traditional single-point or asymmetrical fixing. This significantly improves the overall stability of the connection between the exhaust fan and the ceiling, and reduces the risk of loosening or falling off due to uneven stress. Secondly, the multiple fixing clips 2 can be independently adjusted in position within the mounting slot 30 to adapt to ceiling openings of different sizes. Even if there are deviations in the opening size, precise positioning can be achieved by adjusting the position of each fixing clip 2, solving the problem of high hole accuracy requirements in traditional embedded installations.

[0051] Specifically, see Figure 5 The fixed structure also includes a mounting bracket 5, which is located between the exhaust fan and the ceiling.

[0052] See Figures 6-10 For example, there are four types of installation methods for fixed structures, classified according to the size of the ceiling opening and the strength of the ceiling:

[0053] Installation method one, see [link / reference] Figure 6 When the ceiling is strong enough and no additional support is needed, the mounting bracket 5 is not used, and the ceiling is used to support the weight directly. Specifically, according to the size of the exhaust fan housing, an opening is made in the ceiling. The size of the ceiling opening is slightly larger than the smallest side size of the housing. The housing is placed vertically on the ceiling through the opening. The rack 11 is inserted into the fixing buckle 2 from bottom to top. The position of the fixing buckle 2 is adjusted so that the side position of the rack 11 is close to the edge of the ceiling opening. The fixing buckle 2 is fixed to the housing. The rack 11 is pushed upward until the abutment block 12 abuts the edge of the ceiling opening. The fixing buckle 2 and the rack 11 engage with the serrations to lock the housing to the ceiling.

[0054] Installation method two, see Figure 7 When the ceiling strength is average and bracket 5 is required for auxiliary support, specifically, according to the size of the exhaust fan casing, an opening is made in the ceiling, and the mounting bracket 5 is fixed to the side support 200. The size of the ceiling opening is slightly larger than the smallest side size of the casing, and the inner side of the adjusting rod 52 is flush with the ceiling opening, or outside the ceiling opening, or slightly inside the ceiling. The width of the inner side of the adjusting rod 52 is less than 1 / 2 of the abutment width of the abutment block 12. The rack 11 is inserted into the fixing buckle 2 from bottom to top, and the position of the fixing buckle 2 is adjusted so that the side position of the rack 11 is close to the edge of the ceiling opening. The fixing buckle 2 is fixed to the casing, and the rack 11 is pushed upward until all the abutment blocks 12 abut against the edge of the ceiling opening. The fixing buckle 2 and the rack 11 mesh with the saw teeth to lock the casing to the ceiling.

[0055] Installation method three, see Figure 8Based on the dimensions of the exhaust fan housing, an opening is made in the ceiling. The mounting bracket 5 is fixed to the side support 200. The ceiling opening is slightly larger than the minimum side dimension of the housing. The inner side of one adjusting rod 52 is flush with the ceiling opening, or the inner side of one adjusting rod 52 is outside the ceiling opening, or the inner side of one adjusting rod 52 is inside the ceiling with a width less than half the abutment width of the abutment block 12. In this case, the abutment block 12 abuts against the edge of the ceiling opening. The inner side of the other adjusting rod 52 is inside the ceiling opening. Furthermore, the width of the inner side of the adjusting rod 52 inside the ceiling opening is greater than 1 / 2 of the abutting width of the abutting block 12. Insert the rack 11 from bottom to top into the fixing buckle 2, adjust the position of the fixing buckle 2 so that the side of the rack 11 is close to the inner edge of the adjusting rod 52, fix the fixing buckle 2 to the housing, and continue to push the rack 11 upward. At this time, the abutting block 12 abuts against the lower edge of the mounting bracket 5. That is, the fixing buckle 2 and the rack 11 mesh with the saw teeth on one side to lock the housing to the ceiling, and the other side of the snap fastener 1 locks the housing to the mounting bracket 5.

[0056] Installation method four, see [link / reference] Figure 9 Based on the dimensions of the exhaust fan housing, an opening is made in the ceiling. The mounting bracket 5 is fixed to the side support 200. The inner side of the adjusting rod 52 is inside the ceiling opening, and the width of the inner side of the adjusting rod 52 inside the ceiling opening is greater than 1 / 2 of the abutment width of the abutment block 12. Then, the abutment blocks 12 on both sides abut against the edge of the mounting bracket 5. The rack 11 is inserted into the fixing buckle 2 from bottom to top. The position of the fixing buckle 2 is adjusted so that the side position of the rack 11 is close to the inner edge of the adjusting rod 52. The fixing buckle 2 is fixed to the housing. The rack 11 is pushed upward, and the fixing buckle 2 and the rack 11 engage with the serrations to lock the housing and the mounting bracket 5.

[0057] Firstly, the mounting bracket 5 can be fixed to the original building structure truss on both sides via side supports 200, transferring the exhaust fan's support force from the traditional ceiling to the main building structure. This avoids fixing failure due to aging or insufficient strength of the ceiling material, and is especially suitable for low-strength ceiling materials, significantly reducing the risk of the exhaust fan falling off. Secondly, when the ceiling cannot provide sufficient support strength, the mounting bracket 5 can transform the fixing structure into a force path from the casing to the snap-fit ​​1 to the mounting bracket 5 and then to the building truss, making it suitable for lightweight ceilings and older buildings.

[0058] Specifically, see Figure 5 and Figure 10 The mounting bracket 5 is provided with a crossbar 51 and an adjusting rod 52. The crossbar 51 and the adjusting rod 52 are connected to form a rectangular frame. The crossbar 51 is fixed to the side support 200 of the ceiling. The length of the adjusting rod 52 can be adjusted to fit the ceiling.

[0059] Firstly, the telescopic design of the adjusting rod 52 allows for flexible adjustment of the overall length of the mounting bracket 5, precisely adapting to different sizes of exhaust fan housings and ceiling openings. This overcomes the limitations of traditional fixed structures in terms of installation space requirements, reducing installation costs and customization needs. Secondly, the crossbar 51 is fixed in contact with the side support 200, directly transferring the weight and vibration load of the exhaust fan to the main structure of the building, avoiding the insufficient strength problem caused by relying on the ceiling for load-bearing in traditional methods.

[0060] Specifically, see Figure 5 and Figure 10 The crossbar 51 is provided with a locking hole 53, which is fixed to the side support 200 by bolts.

[0061] Bolted connections have high structural strength and vibration resistance, and can firmly fix the mounting bracket 5 to the side support 200. This allows the weight and operating load of the exhaust fan to be transferred to the main building structure through the bolts. When the ceiling strength is insufficient, it is especially suitable for heavy exhaust fans or long-term vibration conditions, significantly reducing the risk of falling off.

[0062] Specifically, see Figure 5 and Figure 10 The adjusting rod 52 is provided with an extension rod 55 and an abutment rod 54. The extension rod 55 can extend relative to the abutment rod 54 to adjust the length of the adjusting rod 52.

[0063] The length of the adjusting rod 52 can be adjusted by the relative sliding of the extending rod 55 and the abutting rod 54. Compared with the traditional fixed length bracket, it can more accurately adapt to the size difference between the ceiling opening and the exhaust fan housing. It is especially suitable for non-standard installation scenarios and avoids installation gaps or stress concentration problems caused by size deviations.

[0064] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A fixing structure for an exhaust fan, characterized in that, The fixing structure includes: The mounting slot (30) is provided on the exhaust fan; The fixing buckle (2) and the locking member (4) are provided. The fixing buckle (2) is provided with an engaging part and a mounting hole (22). The fixing buckle (2) is installed on one side of the inner wall of the mounting groove (30). The locking member (4) is provided on one side of the outer wall of the mounting groove (30). The locking member (4) cooperates with the mounting hole (22) to lock the fixing buckle (2) in the mounting groove (30). The snap-fit ​​component (1) has one end engaged with the engagement part and the other end abutting against the ceiling to fix the exhaust fan.

2. The fixing structure according to claim 1, characterized in that, The snap-fit ​​component (1) includes a rack (11) and an abutment block (12). One end of the snap-fit ​​component (1) is provided with a rack (11), and the other end is provided with an abutment block (12). The abutment block (12) protrudes outward from the surface of the rack (11) and abuts against and is fixed to the ceiling.

3. The fixing structure according to claim 2, characterized in that, The snap-fit ​​component (1) is provided with a reinforcing rib (13), which is located between the rack (11) and the abutment block (12) and connects the rack (11) and the abutment block (12) to improve the strength of the snap-fit ​​component (1).

4. The fixing structure according to claim 2, characterized in that, The meshing part is provided with a meshing groove (20) and a disengagement bar (21). The meshing groove (20) is adapted to the shape of the rack (11), and the bottom of the meshing groove (20) is provided with a disengagement bar (21). When the rack (11) engages with the engagement groove (20), the release bar (21) is moved away from the rack (11), and the snap-fit ​​member (1) can disengage from the fixing buckle (2).

5. The fixing structure according to claim 4, characterized in that, The release bar (21) includes an elastic wall (210) and a protrusion (211). One end of the elastic wall (210) is connected to the engagement groove (20), and the other end is spaced apart from the engagement groove (20) to form a release space. The protrusion (211) protrudes outward relative to the outer wall of the elastic wall (210) and is used to push the elastic wall (210).

6. The fixing structure according to any one of claims 1-5, characterized in that, At least four fixing buckles (2) and mounting slots (30) are provided and are evenly arranged along the circumference of the exhaust fan.

7. The fixing structure according to claim 6, characterized in that, The fixing structure also includes a mounting bracket (5), which is located between the exhaust fan and the ceiling.

8. The fixing structure according to claim 7, characterized in that, The mounting bracket (5) is provided with a crossbar (51) and an adjusting rod (52). The crossbar (51) and the adjusting rod (52) are connected to form a rectangular frame. The crossbar (51) is fixed to the side support (200) of the ceiling. The length of the adjusting rod (52) can be adjusted to fit the ceiling.

9. The fixing structure according to claim 8, characterized in that, The crossbar (51) is provided with a locking hole (53), which is fixed to the side support (200) by bolts.

10. The fixing structure according to claim 8, characterized in that, The adjusting rod (52) is provided with an extension rod (55) and an abutment rod (54). The extension rod (55) can extend relative to the abutment rod (54) to adjust the length of the adjusting rod (52).

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