Range hood

Abstract

The application relates to the technical field of kitchen appliances, in particular to a range hood. The range hood comprises a smoke collecting hood, the top surface of the smoke collecting hood is provided with a first clamping groove and a first locking part, and the groove opening of the first clamping groove is arranged forward; a decorative cover is arranged above the smoke collecting hood, the bottom of the decorative cover is provided with a mounting plate and a second locking part, the rear end of the mounting plate forms a first clamping part, the first clamping part is clamped in correspondence with the first clamping groove, and the second locking part is detachably connected with the first locking part. When the decorative cover is disassembled, only the connection relationship between the first locking part and the second locking part needs to be released, the quick disassembly of the decorative cover can be realized by separating the first clamping part from the first clamping groove, the range hood does not need to be disassembled as a whole, and the operation difficulty and time consumption of the disassembly of the decorative cover are remarkably reduced.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] As an essential cooking appliance in the kitchen, the decorative cover of a range hood not only serves to conceal the fan frame but also reduces the erosion of the internal structure by oil fumes. Therefore, the installation stability and ease of disassembly of the decorative cover are key factors affecting the user experience of the range hood.

[0003] In related technologies, a bent edge is usually provided at the rear end of the decorative cover towards the fan frame. The bent edge is positioned opposite the rear side of the fan frame and has a through hole. The fan frame has fixing holes, and the decorative cover is locked and fixed to the fan frame with fasteners. This fixing structure is simple, but when the parts inside the fan frame need to be repaired or replaced, it is difficult to disassemble the decorative cover because the fasteners are located between the rear side of the range hood and the wall, and the distance between the rear side of the range hood and the wall is small. As a result, it is necessary to remove the entire range hood from the wall first, and then disassemble the decorative cover for repair. This not only increases the maintenance difficulty and cost, but may also cause additional damage to the equipment. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a range hood.

[0005] This application provides a range hood, including: A smoke collection hood, the top surface of which is provided with a first snap-fit ​​groove and a first locking part, the opening of the first snap-fit ​​groove facing forward; A decorative cover is provided above the smoke collection cover, and the bottom of the decorative cover is provided with a mounting plate and a second locking part. The rear end of the mounting plate forms a first snap-fit ​​part, which is snapped into the first snap-fit ​​groove. The second locking part is detachably connected to the first locking part.

[0006] When disassembling the decorative cover, simply disconnect the first and second locking parts. The separation of the first snap-fit ​​part and the first snap-fit ​​groove allows for quick removal of the cover, eliminating the need to disassemble the entire range hood. This significantly reduces the difficulty and time required for disassembly. The corresponding snap-fit ​​design of the first snap-fit ​​groove and the first snap-fit ​​part provides quick positioning during installation, helping users or installers quickly align the decorative cover with the smoke collection hood without repeated adjustments. This effectively improves assembly efficiency and reduces the risk of structural damage due to positioning deviations. The precise snap-fit ​​between the first snap-fit ​​part and the first snap-fit ​​groove, combined with the detachable connection between the second and first locking parts, forms a double-fixing guarantee. This ensures the decorative cover remains stable during range hood operation (e.g., under conditions of vibration or smoke impact), preventing loosening or detachment, while the detachable design allows for flexible maintenance, achieving a balance between stable installation and convenient disassembly.

[0007] In some embodiments, the smoke hood includes a top wall and a first connector disposed on the outer surface of the top wall, the first connector and the outer surface of the top wall together forming the first snap-fit ​​groove.

[0008] The first connector can be prefabricated separately and then assembled onto the outer surface of the top wall. This not only reduces the processing complexity of individual components but also facilitates the adaptation of different sized first locking slots by adjusting the specifications of the first connector, improving production flexibility and the yield rate of mass production. When the first locking slot is damaged due to accidental collision or long-term wear, the first connector can be disassembled and replaced separately without replacing the entire top wall or the entire smoke hood. This significantly reduces maintenance and replacement costs, simplifies maintenance procedures, and further enhances the user experience throughout the product's lifecycle.

[0009] In some embodiments, the height of the first snap-fit ​​groove gradually decreases from the groove opening to the groove bottom, and the height of the rear end of the first snap-fit ​​portion is greater than or equal to the height of the groove bottom of the first snap-fit ​​groove, and less than the height of the groove opening of the first snap-fit ​​groove.

[0010] The height of the groove is greater than the height of the groove bottom, providing a natural assembly guide channel for the first snap-fit ​​part. Even if there is a slight positioning deviation during assembly, the first snap-fit ​​part can slide smoothly into the bottom of the groove along the wedge-shaped slope and automatically correct its position without repeated adjustments to the alignment. This significantly reduces the difficulty of the assembly operation, further improves the assembly efficiency of the decorative cover, and reduces the risk of component damage caused by hard contact during the assembly process.

[0011] In some embodiments, the first connector includes a first connecting plate and a second connecting plate. The first connecting plate is disposed opposite to the top wall, and the distance between the first connecting plate and the top wall gradually decreases from front to back. The second connecting plate is connected between the top wall and the rear end of the first connecting plate.

[0012] The first connector is composed of a first connecting plate and a second connecting plate, eliminating the need for complex one-piece molded wedge-shaped groove structures. The two plates have simple structures and can be processed separately using conventional processes such as stamping and bending, before being assembled to form a complete first snap-fit ​​groove. This split design allows for precise control of key dimensions such as the groove opening width, slope inclination, and groove bottom depth of the first snap-fit ​​groove, avoiding dimensional deviations caused by structural complexity during one-piece molding and significantly improving the fitting accuracy between the first snap-fit ​​groove and the first snap-fit ​​part.

[0013] In some embodiments, the first latching portion includes a first latching segment and a second latching segment, the bottom surface of the first latching segment abuts against the top wall, the second latching segment protrudes upward and is disposed at the rear end of the first latching segment, and the upper end of the second latching segment abuts against the first connecting plate.

[0014] The first snap-fit ​​section's contact with the top wall restricts the decorative cover's vertical displacement (preventing it from moving up and down); the second snap-fit ​​section's contact with the first connecting plate, combined with the wedge-shaped groove's inclined structure, restricts the decorative cover's horizontal displacement (preventing it from swaying back and forth). These two sections work together to form a three-dimensional limiting mechanism, completely eliminating redundant gaps between the snap-fit ​​parts and the snap-fit ​​groove. Even under high-frequency vibrations or external impacts from the range hood, the decorative cover remains stable, preventing abnormal noises or loosening, further ensuring installation reliability.

[0015] In some embodiments, the bottom surface of the mounting plate is higher than the top wall, and the rear end of the mounting plate is first bent downward to form a first folded edge, the rear end of the first folded edge is bent backward to form a first snap-fit ​​segment, and the rear end of the first snap-fit ​​segment is bent upward to form a second snap-fit ​​segment.

[0016] The first folded edge, the first snap-fit ​​section, and the second snap-fit ​​section are integrally formed with the mounting plate through continuous folding, without any splicing gaps. The overall structural rigidity is significantly better than that of the snap-fit ​​parts assembled separately, and the resistance to bending and torsion is stronger. The surface contact between the first snap-fit ​​section and the top wall, combined with the surface contact between the second snap-fit ​​section and the first connecting plate, forms a three-dimensional constraint, which can restrict the displacement of the decorative cover from multiple directions. It prevents both vertical movement (the first snap-fit ​​section abuts against the top wall) and front-to-back swaying (the second snap-fit ​​section abuts against the first connecting plate). Even under high-frequency vibration of the range hood or external impact, it can ensure that the decorative cover is stable and does not loosen, thus structurally eliminating the possibility of abnormal noise.

[0017] In some embodiments, the mounting plate is used to mount a lighting assembly, and the mounting plate is embedded inside the decorative cover, with the second locking part disposed on the outer wall of the decorative cover.

[0018] The mounting plate is embedded inside the decorative cover, forming a concealed fixing structure. The lighting assembly is rigidly connected to the decorative cover via the mounting plate, avoiding the risk of loosening or falling off the lamp body due to vibration caused by traditional exposed installations. Simultaneously, the embedded layout reduces the direct adhesion of cooking fumes to the surface of the lighting assembly, lowering the risk of poor circuit contact or short circuits caused by fumes, extending the lifespan of the lighting assembly, and improving safety. The second locking part is located on the outer wall of the decorative cover. When disassembling or assembling the decorative cover, users or maintenance personnel can directly access the locking components (such as tightening bolts or pressing clips) without needing to delve into the interior or obstructed areas of the cover. This provides a wider field of vision, makes tool use more convenient, and significantly reduces the difficulty of unlocking and locking.

[0019] In some embodiments of this application, the second locking part is located above the top wall, and the mounting plate is located in front of the second locking part.

[0020] The mounting plate is located on the front side of the decorative cover. After the decorative cover is installed, the lighting assembly is installed on the mounting plate without interfering with the top wall. The second locking part is located on the rear side of the decorative cover. After the decorative cover is installed, the operator cannot see the first and second locking parts when facing the range hood, which improves the aesthetics of the range hood.

[0021] In some embodiments, the decorative cover includes a front panel, a left panel, and a right panel, the left panel and the right panel being disposed opposite to each other, and the front panel being connected between the front end faces of the left panel and the right panel; The left side plate and the right side plate include a first connecting segment and a second connecting segment arranged sequentially from front to back. The first connecting segment of the front side plate, the left side plate, and the right side plate together enclose a first mounting space. The mounting plate is embedded in the mounting space. The lower end of the second connecting segment is bent outward to form a second folded edge. The second locking part includes the second folded edge.

[0022] The frame structure formed by the front panel, the first connecting section of the left side panel, and the first connecting section of the right side panel, along with the continuous bending design of the second connecting section and the second folded edge, makes the decorative cover a rigid structure with a front frame and a bottom locking folded edge. Compared to a single flat side panel, this multi-segment bending and enclosing structure significantly enhances the resistance to torsion and bending, better withstands the impact of external forces during transportation and installation, and the increased weight caused by oil fumes adhering during long-term use, ensuring that the decorative cover is not easily deformed and maintains a precise fit with the fume hood.

[0023] In some embodiments, the second locking part further includes a first fixing hole provided on the second folded edge, and the first locking part includes a second fixing hole provided on the top wall. The second fixing hole and the first fixing hole are correspondingly provided and can be connected to each other by fasteners.

[0024] After the fasteners (such as bolts and screws) pass through the corresponding fixing holes, they can apply a stable axial locking force, rigidly connecting the rear end of the decorative cover to the top wall of the smoke collection hood. Together with the front snap-fit ​​part, they form a double fixing system of front positioning and rear locking, completely eliminating the space for the decorative cover to move in the front-back and left-right directions. Even when the range hood vibrates at high frequency or is hit by external force, it can ensure that the connection is not loose or makes abnormal noise, significantly improving the overall installation stability. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a side view of the range hood described in the embodiment of this application; Figure 2 This is a front view of the range hood described in the embodiment of this application; Figure 3 for Figure 2 A sectional view of the range hood described above along line AA; Figure 4 for Figure 3 A magnified view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the decorative cover described in the embodiment of this application; Figure 6 This is a schematic diagram of the internal structure of the decorative cover described in the embodiment of this application; Figure 7 This is a rear view of the decorative cover described in the embodiment of this application; Figure 8 for Figure 7 A BB-direction sectional view of the decorative cover described herein; Figure 9 This application's embodiment shows a schematic diagram of the assembly structure of the mounting plate and the smoke hood; Figure 10 This is a top view of the range hood described in the embodiment of this application.

[0028] Among them, 1. Decorative cover; 101. Front side panel; 102. Left side panel; 103. Right side panel; 11. Second locking part; 111. Second folded edge; 112. First fixing hole; 2. Smoke hood; 201. Top wall; 2011. Second fixing hole; 21. First snap-fit ​​groove; 22. First connector; 221. First connecting plate; 222. Second connecting plate; 3. Mounting plate; 31. First snap-fit ​​part; 32. First folded edge; 311. First snap-fit ​​section; 312. Second snap-fit ​​section; 4. Lighting components; 5. Display panel. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0031] like Figures 1 to 10 As shown, this application provides a range hood, including a smoke collection hood 2, a fan housing, a decorative cover 1, a filter, a lighting assembly 4, a display panel 5, and other structures. The smoke collection hood 2 and the decorative cover 1 constitute the outer shell structure of the range hood, wherein the decorative cover 1 is mounted on the fan housing, the lighting assembly 4 and the display panel 5 are located at the bottom of the decorative cover 1, and the filter is located at the air inlet of the smoke collection hood 2.

[0032] Reference Figure 3 Figure 4 and Figure 5 As shown, the top surface of the smoke hood 2 is provided with a first snap-fit ​​groove 21 and a first locking part, with the opening of the first snap-fit ​​groove 21 facing forward; the decorative cover 1 is located above the smoke hood 2, and the bottom of the decorative cover 1 is provided with a mounting plate 3 and a second locking part 11. The rear end of the mounting plate 3 forms a first snap-fit ​​part 31, which is snapped into the first snap-fit ​​groove 21. The second locking part 11 is detachably connected to the first locking part.

[0033] In practice, the decorative cover 1 is a rectangular shell that matches the size of the air handling unit. It is made of cold-rolled steel plate with powder coating. The front end of the bottom of the decorative cover 1 is provided with an installation plate 3. The rear end of the installation plate 3 is formed into a first snap-fit ​​part 31 through bending, stamping and other processes. The length of the first snap-fit ​​part 31 is the same as the length of the first snap-fit ​​groove 21, which can be inserted into the first snap-fit ​​groove 21 to achieve snap-fit ​​positioning.

[0034] During installation, the operator stands in front of the range hood and aligns the first snap-fit ​​part 31 at the bottom of the decorative cover 1 with the first snap-fit ​​groove 21 on the top surface of the smoke collection hood 2. The cover is pushed horizontally backward until the rear end of the first snap-fit ​​part 31 abuts against the bottom of the first snap-fit ​​groove 21, completing the initial positioning. Subsequently, the first locking part and the second locking part 11 are locked in place to secure the decorative cover 1 to the smoke collection hood 2. For disassembly, simply disconnect the first locking part and the second locking part 11, then pull the decorative cover 1 forward to complete the removal. This eliminates the need to disassemble the entire range hood, significantly reducing the difficulty and time required for disassembling the decorative cover 1.

[0035] The corresponding snap-fit ​​design of the first snap-fit ​​groove 21 and the first snap-fit ​​part 31 can play a role in quick positioning during installation, helping users or assemblers to quickly align the decorative cover 1 and the smoke collection cover 2 in their installation positions without repeated adjustments. This effectively improves assembly efficiency and reduces the risk of structural damage caused by positioning deviations during assembly. The precise snap-fit ​​between the first snap-fit ​​part 31 and the first snap-fit ​​groove 21, combined with the detachable connection between the second locking part 11 and the first locking part, forms a double-fixing guarantee. This ensures that the decorative cover 1 remains stably installed during the operation of the range hood (such as under conditions of vibration or smoke impact), preventing loosening or detachment. The detachable design also retains the characteristic of flexible maintenance, achieving a balance between the dual requirements of stable installation and convenient disassembly.

[0036] Reference Figure 4 and Figure 9 As shown, in some embodiments of this application, the smoke hood 2 includes a top wall 201 and a first connector 22 disposed on the outer surface of the top wall 201. The first connector 22 and the outer surface of the top wall 201 together form a first snap-fit ​​groove 21.

[0037] For example, the smoke hood 2 includes a top wall 201, a rear side wall, a left side wall, and a right side wall. The top wall 201 is horizontally arranged. The rear side wall is connected to the rear end of the top wall 201 and extends downward. The left side wall and the right side wall are both trapezoidal or triangular plates that are larger at the top and smaller at the bottom. The upper end of the left side wall is connected to the left side of the top wall 201, and the rear end of the left side wall is connected to the left side of the rear side wall. The upper end of the right side wall is connected to the right side of the top wall 201, and the rear end of the right side wall is connected to the right side of the rear side wall. The front end face of the top wall 201, the front end face of the left side wall, and the front end face of the right side wall together enclose the air intake of the range hood. The filter screen is set at the air intake.

[0038] After the range hood is installed, the top wall 201 of the smoke collection hood 2 is set almost horizontally. A first connector 22 is set above the top wall 201. The rear end of the first connector 22 is fixedly connected to the top wall 201, and the first connector 22 and the outer surface (top surface) of the top wall 201 together form a first snap-fit ​​groove 21.

[0039] The first connector 22 is fixed to the outer surface of the top wall 201 by welding or fastening, and together with the outer surface of the top wall 201, they form a U-shaped or wedge-shaped first snap-fit ​​groove 21 with the opening facing forward. The length (dimension along the left and right direction) of the first connector 22 is less than the width of the decorative cover 1, so as to avoid interference between the decorative cover 1 and the first connector 22 when it is assembled onto the smoke collection hood 2, which would affect the assembly effect.

[0040] In specific implementation, the first connecting member 22 can be two structural members that are independent of the top wall 201 of the smoke hood 2, or it can be integrally formed with the top wall 201 of the smoke hood 2, or it can be a component formed by processing a structural member inside the smoke hood 2.

[0041] In some embodiments of this application, the first connector 22 and the top wall 201 of the smoke hood 2 are two independent structural components. The first connector 22 and the top wall 201 cooperate to form the first locking groove 21, eliminating the need for integral stamping of the top wall 201 and avoiding reliance on large stamping equipment. This is particularly suitable for irregularly shaped top wall 201 structures. The dimensions of the first connector 22 (such as the height and length of the vertical section) can be flexibly adjusted according to actual needs, thereby changing the specifications of the first locking groove 21 to adapt to decorative covers 1 of different sizes, thus enhancing versatility. If the first connector 22 shows wear, deformation, or corrosion due to long-term use, it can be disassembled and replaced separately without replacing the entire top wall 201 of the smoke hood 2, significantly reducing maintenance costs.

[0042] In some embodiments of this application, the height of the first snap-fit ​​groove 21 gradually decreases from the groove opening to the groove bottom. The height of the first snap-fit ​​groove 21 is the vertical distance between the first connector 22 and the top wall 201 of the smoke hood 2. The gradually changing height structure of the first snap-fit ​​groove 21 forms a natural guide slope, which can guide the first snap-fit ​​part 31 to slide quickly and accurately into the groove bottom during assembly, reducing the difficulty of manual alignment. It is especially suitable for rapid assembly in mass production, and at the same time avoids the displacement of the decorative cover 1 due to installation deviation, further ensuring installation accuracy.

[0043] In specific implementation, refer to Figure 4 As shown, the first connecting member 22 includes a first connecting plate 221 and a second connecting plate 222. The first connecting plate 221 is disposed opposite to the top wall, and the distance between the first connecting plate 221 and the top wall 201 gradually decreases from front to back. The second connecting plate 222 is connected between the top wall 201 and the rear end of the first connecting plate 221.

[0044] Reference Figure 9As shown, the first connecting plate 221 is a strip-shaped flat plate that extends in the left-right direction and is positioned opposite to the top wall 201 of the smoke hood 2. The front end of the first connecting plate 221 is inclined upward relative to the rear end, so that the distance between the front end of the first connecting plate 221 and the top wall 201 is greater than the distance between the rear end of the first connecting plate 221 and the top wall 201. The second connecting plate 222 includes a horizontal section and a vertical section. The horizontal section is attached to the top wall 201 and fixed to each other by welding or screws. The lower end of the vertical section is connected to the front end of the horizontal section, and the upper end of the vertical section is connected to the rear end of the first connecting plate 221. Thus, a first engaging groove 21 with a gradually decreasing height from the opening to the bottom is formed between the first connecting plate 221, the vertical section, and the top wall 201. The front side of the vertical section forms the bottom of the first engaging groove 21, and the lower surface of the first connecting plate 221 and the outer surface of the top wall 201 form two opposing groove walls of the first engaging groove 21.

[0045] In some embodiments of this application, the first connecting plate 221 and the second connecting plate 222 are integrally formed, eliminating the need for complex integral wedge-shaped groove structures. The two plates have simple structural forms and can be processed separately using conventional processes such as stamping and bending, before being assembled to form the complete first snap-fit ​​groove 21. This split design allows for precise control of key dimensions such as the groove width, slope inclination, and groove depth of the first snap-fit ​​groove 21, avoiding dimensional deviations caused by structural complexity during integral forming and significantly improving the fitting accuracy between the first snap-fit ​​groove 21 and the first snap-fit ​​part 31.

[0046] The first connecting plate 221 features a gradient spacing design from front to back, forming a more regular guide slope. This provides more precise guidance for the first snap-fit ​​part 31 during assembly, eliminating the need for repeated manual calibration and further improving assembly efficiency. It is especially suitable for the rapid assembly needs in industrial mass production.

[0047] In some embodiments of this application, the height of the rear end of the first latching portion 31 is greater than or equal to the height of the bottom of the first latching groove 21, and less than the height of the opening of the first latching groove 21.

[0048] The height of the first latching part 31 along the front-to-back direction can be the same, or the height can gradually decrease from front to back.

[0049] As the height of the first locking part 31 gradually decreases from front to back, it forms a wedge-shaped structure that matches the structure of the first locking groove 21, which is larger at the front end and smaller at the rear end. When the first locking part 31 is inserted into the first locking groove 21, the two fit together tightly. When the rear end of the first locking part 31 is aligned with the opening of the first locking groove 21, the first locking part 31 will gradually fit against the inclined surface of the first connecting plate 221 during the sliding process. When it reaches the bottom of the groove, the rear end of the first locking part 31 abuts tightly against the front side of the second connecting plate 222, and forms a three-point positioning with the top wall 201 and the first connecting plate 221, achieving precise self-locking and completing the initial fixation without additional calibration.

[0050] When the height of the first snap-fit ​​part 31 is equal in the front-to-back direction, it is necessary to ensure that the overall height of the first snap-fit ​​part 31 is greater than or equal to the height of the bottom of the first snap-fit ​​groove 21. This ensures that the rear end of the first snap-fit ​​part 31 can abut against the groove wall or bottom of the first snap-fit ​​groove 21 during its movement towards the bottom of the groove, achieving a tight fit, eliminating redundant gaps between the snap-fit ​​part and the groove bottom, preventing the decorative cover 1 from shifting or making abnormal noises due to vibration after installation, and significantly improving the fastening stability of the snap-fit ​​structure. At the same time, the height of the rear end of the first snap-fit ​​part 31 is less than the height of the groove opening of the first snap-fit ​​groove 21, so that the first snap-fit ​​part 31 can smoothly enter the first snap-fit ​​groove 21. Sufficient initial space is reserved for the first snap-fit ​​part 31 to insert into the groove, avoiding hard collisions or jamming with the edge of the groove opening when the first snap-fit ​​part 31 is too large.

[0051] In some embodiments of this application, the first latching portion 31 includes a first latching segment 311 and a second latching segment 312. The bottom surface of the first latching segment 311 abuts against the top wall 201, the second latching segment 312 is connected to the rear end of the first latching segment 311, and the upper end of the second latching segment 312 abuts against the first connecting plate 221.

[0052] The first latching part 31 is integrally formed by bending a cold-rolled steel plate or a plastic plate, and includes a first latching segment 311 and a second latching segment 312 connected in sequence, with a total length adapted to the length of the first latching groove 21. The first latching segment 311 is a horizontal segment, and its bottom surface is completely in contact with the top wall 201 of the smoke hood 2. The second latching segment 312 is connected to the rear end of the first latching segment 311, and the height of the rear end of the second latching segment 312 is greater than or equal to the height of the bottom of the first latching groove 21. In this way, as the first latching part 31 is inserted into the first latching groove 21, the second latching segment 312 can form an abutment fit with the first connecting plate 221.

[0053] The contact between the first snap-fit ​​section 311 and the top wall 201 restricts the vertical displacement of the decorative cover 1 (preventing it from moving up and down); the contact between the second snap-fit ​​section 312 and the first connecting plate 221, along with the inclined structure of the wedge-shaped groove, restricts the horizontal displacement of the decorative cover 1 (preventing it from swaying back and forth). The two sections work together to form a three-dimensional limiting mechanism, completely eliminating redundant gaps between the snap-fit ​​part and the snap-fit ​​groove. Even when the range hood vibrates at high frequencies or is impacted by external forces, the decorative cover 1 can remain stable, preventing abnormal noises or loosening, and further ensuring installation reliability.

[0054] The first snap-fit ​​section 311 can be flush with or lower than the front section of the mounting plate 3. When other structures need to be installed on the mounting plate 3, the front section of the mounting plate 3 usually needs to be raised in order to avoid them. At this time, the bottom surface of the mounting plate 3 is higher than the top wall 201. The rear end of the mounting plate 3 is first bent downward to form the first folded edge 32. The rear end of the first folded edge 32 is bent backward to form the first snap-fit ​​section 311. The rear end of the first snap-fit ​​section 311 is bent upward to form the second snap-fit ​​section 312.

[0055] In practice, the mounting plate 3 is a horizontally positioned rectangular plate, with its bottom surface extending H above the top wall 201 of the smoke hood 2. This distance prevents interference between the mounting plate 3 and the top wall 201. The rear end of the mounting plate 3 is bent downwards at a 90° angle to form a first folded edge 32 with a height of H. The length of the first folded edge 32 is the same as the length of the mounting plate 3, serving as a transition connection and structural reinforcement. The rear end of the first folded edge 32 is bent backwards at a 90° angle to form a horizontal first snap-fit ​​section 311. The bottom surface of the first snap-fit ​​section 311 is completely flush with the top wall 201 of the smoke hood 2. The rear end of the first snap-fit ​​section 311 is bent upwards at a 90° angle to form a second snap-fit ​​section 312. The upper end face of the second snap-fit ​​section 312 is in close contact with the first connecting plate 221 of the first connector 22.

[0056] The first folded edge 32, the first snap-fit ​​section 311, and the second snap-fit ​​section 312 are integrally formed with the mounting plate 3 through continuous folding, without splicing gaps. The overall structural rigidity is significantly better than that of the snap-fit ​​parts assembled separately, and the resistance to bending and torsion is stronger. The surface contact between the first snap-fit ​​section 311 and the top wall 201, and the surface contact between the second snap-fit ​​section 312 and the first connecting plate 221, form a three-dimensional constraint, which can restrict the displacement of the decorative cover 1 from multiple directions. It can prevent vertical movement (the first snap-fit ​​section 311 abuts against the top wall 201) and limit front-to-back swaying (the second snap-fit ​​section 312 abuts against the first connecting plate 221). Even when the range hood vibrates at high frequency or is impacted by external force, it can ensure that the decorative cover 1 is stable and does not loosen, thus eliminating the possibility of abnormal noise from the structure.

[0057] In some embodiments, the mounting plate 3 is used to mount the lighting assembly 4, and the mounting plate 3 is embedded inside the decorative cover 1, and the second locking part 11 is disposed on the outer side wall of the decorative cover 1.

[0058] The mounting plate 3, which originally housed the lighting components, is bent to form the first snap-fit ​​part 31. This not only enhances the overall structural strength of the first snap-fit ​​part 31, but also simplifies the manufacturing process, eliminates the need for additional molds, and reduces costs.

[0059] The mounting plate 3 is embedded inside the decorative cover 1, forming a concealed fixing structure. The lighting assembly is rigidly connected to the decorative cover 1 through the mounting plate 3, avoiding the risk of the lamp body loosening or falling off due to vibration caused by traditional exposed installation. At the same time, the embedded layout reduces the direct adhesion of cooking fumes to the surface of the lighting assembly, reducing the risk of poor circuit contact or short circuit caused by fumes, extending the service life of the lighting assembly, and improving safety. The second locking part 11 is located on the outer wall of the decorative cover 1. When disassembling or assembling the decorative cover 1, users or maintenance personnel can directly access the locking parts (such as turning bolts or pressing buckles) without having to go deep into the interior of the decorative cover 1 or the obstructed area. The operation field is wider, the tools are easier to use, and the difficulty of unlocking and locking is significantly reduced.

[0060] In some embodiments of this application, the second locking part 11 is located above the top wall 201, and the mounting plate 3 is located in front of the second locking part 11. The mounting plate 3 is located above the top wall 201 only at the portion where the first snap-fit ​​part 31 is provided, and the portion where the lighting assembly 4 is installed is located on the front side above the top wall 201. By setting the mounting plate 3 in the front area of ​​the decorative cover 1, after the decorative cover 1 is installed, the lighting assembly 4 installed on the mounting plate 3 will not interfere with the top wall 201. Furthermore, by setting the second locking part 11 in the rear area of ​​the decorative cover 1, after the decorative cover 1 is installed, the operator cannot see the first locking part and the second locking part 11 when facing the range hood, thus improving the aesthetic appearance of the range hood.

[0061] Reference Figure 5 As shown, in some embodiments of this application, the decorative cover 1 includes a front panel 101, a left panel 102, and a right panel 103. The left panel 102 and the right panel 103 are disposed opposite to each other, and the front panel 101 is connected between the front ends of the left panel 102 and the right panel 103. The left panel 102 and the right panel 103 include a first connecting segment and a second connecting segment arranged sequentially from front to back. The first connecting plate 221 of the front panel 101, the left panel 102, and the first connecting segment of the right panel 103 together enclose a first mounting space. The mounting plate 3 is embedded in the first mounting space. The lower end of the second connecting segment is bent outward to form a second folded edge 111. The second locking part 111 includes the second folded edge 111.

[0062] In practice, the lower end face of the first connecting segment is higher than the lower end face of the second connecting segment. After the decorative cover 1 is installed, the second connecting segment is located directly above the top wall 201, and the first connecting segment is located above the front side of the top wall 201. The mounting plate 3 is embedded in the first installation space formed by the first connecting segments of the front side plate 101, the left side plate 102, and the right side plate 103. In this way, the bottom surface of the mounting plate 3 is higher than the top wall 201, reserving space for the installation of the lighting assembly.

[0063] At the second connecting section, a second folded edge 111 is formed at the lower end of the decorative cover 1 by bending. The second folded edge 111 is fitted to the top wall 201 and can be connected together by welding or screw fixing.

[0064] The frame structure formed by the front panel 101, the first connecting section of the left side panel 102, and the first connecting section of the right side panel 103, along with the continuous bending design of the second connecting section and the second folded edge 111, makes the decorative cover 1 a rigid structure with a front frame and a bottom locking folded edge. Compared with a single flat side panel, this multi-segment bending and enclosing structure has significantly enhanced resistance to torsion and bending, and can better withstand the impact of external forces during transportation and installation, as well as the increased weight caused by oil fume adhesion during long-term use, ensuring that the decorative cover 1 is not easily deformed and maintains a precise fit with the smoke collection hood 2.

[0065] In some embodiments, the second locking part 11 further includes a first fixing hole 112 provided on the second folded edge 111, and the first locking part includes a second fixing hole 2011 provided on the top wall 201. The second fixing hole 2011 and the first fixing hole 112 are correspondingly provided and can be connected to each other by fasteners.

[0066] After the fasteners (such as bolts and screws) pass through the corresponding fixing holes, they can apply a stable axial locking force to rigidly connect the rear end of the decorative cover 1 to the top wall 201 of the smoke collection hood 2. This forms a double fixing system with the front snap-fit ​​part, which completely eliminates the space for movement of the decorative cover 1 in the front-back and left-right directions. Even when the range hood vibrates at high frequency or is impacted by external force, it can ensure that the connection is not loose or makes any abnormal noise, which significantly improves the overall installation stability.

[0067] In practice, countersunk screws are used as fasteners. The first fixing hole 112 is a countersunk hole, and the second fixing hole 2011 is a countersunk groove. The countersunk screws pass through the countersunk holes and countersunk grooves from top to bottom to lock the second folded edge 111 to the top wall 201. This allows the entire decorative cover 1 to be detachably installed onto the smoke collection cover 2. At the same time, the screws are not visible from the front after installation, ensuring the cleanliness of the range hood's appearance.

[0068] When the lighting assembly needs to be replaced, simply remove the countersunk screws on both sides of the decorative cover 1, pull the decorative cover 1 forward, and you can remove the decorative cover 1, mounting plate 3, and lighting assembly.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A range hood, characterized in that, include: The smoke collection hood (2) has a first snap-fit ​​groove (21) and a first locking part on its top surface, with the opening of the first snap-fit ​​groove (21) facing forward. A decorative cover (1) is provided above the smoke collection cover (2), and the bottom of the decorative cover (1) is provided with a mounting plate (3) and a second locking part (11). The rear end of the mounting plate (3) forms a first snap-fit ​​part (31), which is snap-fitted into the first snap-fit ​​groove (21). The second locking part (11) is detachably connected to the first locking part.

2. The range hood according to claim 1, characterized in that, The smoke hood (2) includes a top wall (201) and a first connector (22) disposed on the outer surface of the top wall (201). The first connector (22) and the outer surface of the top wall (201) together form the first snap-fit ​​groove (21).

3. The range hood according to claim 2, characterized in that, The height of the first snap-fit ​​groove (21) gradually decreases from the groove opening to the groove bottom. The height of the rear end of the first snap-fit ​​part (31) is greater than or equal to the height of the groove bottom of the first snap-fit ​​groove (21), and less than the height of the groove opening of the first snap-fit ​​groove (21).

4. The range hood according to claim 3, characterized in that, The first connector (22) includes a first connecting plate (221) and a second connecting plate (222). The first connecting plate (221) is disposed opposite to the top wall (201), and the distance between the first connecting plate (221) and the top wall (201) gradually decreases from front to back. The second connecting plate (222) is connected between the top wall (201) and the rear end of the first connecting plate (221).

5. The range hood according to claim 4, characterized in that, The first snap-fit ​​part (31) includes a first snap-fit ​​section (311) and a second snap-fit ​​section (312). The bottom surface of the first snap-fit ​​section (311) abuts against the top wall (201). The second snap-fit ​​section (312) protrudes upward and is disposed at the rear end of the first snap-fit ​​section (311). The upper end of the second snap-fit ​​section (312) abuts against the first connecting plate (221).

6. The range hood according to claim 5, characterized in that, The bottom surface of the mounting plate (3) is higher than the top wall (201), and the rear end of the mounting plate (3) is first bent downward to form a first folded edge (32), the rear end of the first folded edge (32) is bent backward to form a first snap-fit ​​section (311), and the rear end of the first snap-fit ​​section (311) is bent upward to form a second snap-fit ​​section (312).

7. The range hood according to any one of claims 2-4, characterized in that, The mounting plate (3) is used to install the lighting assembly (4), and the mounting plate (3) is embedded inside the decorative cover (1), and the second locking part (11) is provided on the outer wall of the decorative cover (1).

8. The range hood according to claim 7, characterized in that, The second locking part (11) is located above the top wall (201), and the mounting plate (3) is located in front of the second locking part (11).

9. The range hood according to claim 8, characterized in that, The decorative cover (1) includes a front side panel (101), a left side panel (102) and a right side panel (103). The left side panel (102) and the right side panel (103) are arranged opposite to each other, and the front side panel (101) is connected between the front end faces of the left side panel (102) and the right side panel (103). The left side plate (102) and the right side plate (103) include a first connecting segment and a second connecting segment arranged sequentially from front to back. The first connecting segment of the front side plate (101), the left side plate (102) and the right side plate (103) together enclose a first installation space. The mounting plate (3) is embedded in the first installation space. The lower end of the second connecting segment is bent outward to form a second folded edge (111). The second locking part (11) includes the second folded edge (111).

10. The range hood according to claim 9, characterized in that, The second locking part (11) further includes a first fixing hole (112) provided on the second folded edge (111). The first locking part includes a second fixing hole (2011) provided on the top wall (201). The second fixing hole (2011) and the first fixing hole (112) are provided correspondingly and can be connected to each other by fasteners.

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