Sound absorption box fixing structure of range hood

Abstract

The utility model relates to a fixing structure for a sound absorption box of a range hood, which is used for fixing the sound absorption box (1) on a fan frame (2) of the range hood, and the fan frame (2) comprises a left side coaming (21), a rear side coaming (22), a right side coaming and a front side cover plate which are sequentially connected to form a frame-shaped main body, the sound absorption box is characterized in that a left folding edge and a right folding edge are arranged on the vertical edges of the front sides of the left side coaming and the right side coaming, a left notch and a left receding hole are formed in the left folding edge, a right notch and a right receding hole are formed in the right folding edge, a left locking piece and a left protruding bulge are arranged on the left side and the right side of the sound absorption box body (1) respectively, and a right locking piece and a right protruding bulge are arranged on the right side and the left side of the sound absorption box body (1) respectively. The left locking piece can be inserted into the left notch, and the left protruding bulge can be clamped into the left receding hole. Correspondingly, the right locking piece can be inserted into the right notch, and the right protruding bulge can be clamped into the right receding hole. Compared with the prior art, the utility model has the advantage that the appearance of the front side cover plate is not influenced by the fixation of the sound absorption box.

Description

Technical Field

[0001] This utility model relates to the field of kitchenware, specifically to a fixing structure for the suction box of a range hood. Background Technology

[0002] Range hoods are essential appliances for people to remove cooking fumes in their daily lives, and many range hoods are becoming increasingly sophisticated in design. In recent years, the increase in air volume and other performance characteristics has led to an increase in noise, thus requiring the installation of a large amount of noise-absorbing cotton. Most manufacturers, in their designs, directly fix the sound-absorbing box containing the cotton to the front cover of the fan using screws or other methods (this is where the noise is high and it is also the user's side, so adding sound absorption and noise reduction measures is the most effective). Moreover, more and more products do not come with an external decorative cover to cover the screws. Therefore, after the existing sound-absorbing box fixing structure is installed, the user can directly see several large fixing screw positions from the main front view when opening the cabinet door (if it is installed inside a cabinet), which affects the refinement and aesthetics. At the same time, oil fumes and oil stains flow through the inside of the fan cover, and sometimes they will flow out or partially leak out through the screw holes on the front, further affecting the user's appearance and causing cleaning trouble. Some manufacturers also use a bracket welded inside the fan cover and then fix the sound-absorbing component in the opposite direction to the welded directly on the fan cover. Although the screws are not obvious, the fan cover has been welded, and uneven welding marks can be seen on the front, which also affects the aesthetics. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a range hood sound absorption box fixing structure that can reduce the impact of the sound absorption box fixing on the appearance of the fan frame, in contrast to the above-mentioned prior art.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a fixing structure for a range hood sound-absorbing box, used to fix the sound-absorbing box on the fan frame of the range hood. The fan frame is equipped with a fan system inside. The fan frame includes a left side panel, a rear side panel, a right side panel, and a front cover plate that can be connected in sequence to form a frame-shaped main body. The lower side of the frame-shaped main body is open as an air inlet, and the top of the frame-shaped main body is equipped with a top cover plate with an air outlet. The feature is that: the front vertical edge of the left side panel has a left folded edge that extends to the right and bends, and the front vertical edge of the right side panel has a right folded edge that bends to the left. Both the left and right folded edges are "┑" shaped and include a horizontal folded edge and a vertical folded edge. The horizontal folded edge of the left folded edge has a left... The sound-absorbing box has a notch on the horizontal fold of the right fold, a left clearance hole on the vertical fold of the left fold, and a right clearance hole on the vertical fold of the right fold. The horizontal width of the sound-absorbing box is equal to or slightly greater than the distance between the vertical folds of the upper left and right folds. The left and right sides of the sound-absorbing box are respectively provided with or connected with a left locking plate and a right locking plate. The left and right side walls of the sound-absorbing box are respectively provided with a left protruding bulge and a right protruding bulge. The sound-absorbing box can be inserted between the left and right side panels from bottom to top. After the sound-absorbing box is installed in place, the left and right locking plates on the sound-absorbing box can be inserted into the left and right notches respectively. The left and right protruding bulges on the sound-absorbing box can be inserted into the left and right clearance holes respectively.

[0005] As an improvement, the right edge of the left notch extends to the corner of the left fold of the "┑" shape, and the left edge of the right notch extends to the corner of the right fold of the "┑" shape.

[0006] Further improvements include a left positioning hole on the horizontal fold of the left fold and a right positioning hole on the horizontal fold of the right fold. The left and right sides of the inner side of the front cover plate are formed with a left positioning piece and a right positioning piece that can be respectively inserted into the left positioning hole and the right positioning hole.

[0007] Further improvements include the addition of L-shaped hooks at the ends of both the left and right positioning pieces of the cover plate.

[0008] Similarly, to facilitate the installation and positioning of the front cover plate, both the left and right positioning card holes include interconnected coarse-diameter portions and fine-diameter portions, which are connected by an inclined surface.

[0009] To ensure the stability of the sound-absorbing box installation, two sets of left notches and left clearance holes are opened on the left folded edge, and two sets of right notches and right clearance holes are opened on the right folded edge. Correspondingly, two sets of left locking plates and right locking plates, as well as two sets of left protruding bulges and right protruding bulges are formed or connected on the left and right sides of the sound-absorbing box, respectively. The two sets of left locking plates can be inserted into the two sets of left notches, and the two sets of right locking plates can be inserted into the two sets of right notches, respectively. The two sets of left protruding bulges and the two sets of right protruding bulges can be locked into the two sets of left clearance holes and right clearance holes, respectively.

[0010] In a further improvement, the top of the front cover plate is fixed to the top cover plate by screws.

[0011] Compared with the prior art, the advantages of this utility model are as follows: by designing left and right folded edges on the inner, non-exposed parts of the left and right side panels of the fan frame, and then designing a left notch and a left clearance hole on the left folded edge, and a right notch and a right clearance hole on the right folded edge, and setting left and right locking plates, as well as left and right protruding bulges on the left and right sides of the sound-absorbing box, the left and right locking plates are locked in place with the left and right notches respectively, and the left and right protruding bulges are further positioned with the left and right clearance holes, so that the appearance of the front cover is not affected by the fixing of the sound-absorbing box. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external three-dimensional structure of the fan frame in an embodiment of this utility model;

[0013] Figure 2 This is a schematic diagram of the external three-dimensional structure of the wind turbine frame from another perspective in an embodiment of this utility model.

[0014] Figure 3 This is a schematic diagram of the fixing structure of the sound-absorbing box of the range hood after concealing the front cover plate in an embodiment of this utility model.

[0015] Figure 4 This is a schematic diagram of the sound-absorbing box in an embodiment of the present invention.

[0016] Figure 5 This is a structural schematic diagram of the sound-absorbing box from another perspective in an embodiment of this utility model.

[0017] Figure 6 This is a schematic diagram of the structure of the fan frame after the left side panel, rear side panel and right side panel are connected in an embodiment of this utility model.

[0018] Figure 7 This is a structural schematic diagram from another perspective of the connection of the left side panel, rear side panel and right side panel of the fan frame in an embodiment of this utility model.

[0019] Figure 8This is a schematic diagram of the front cover plate in an embodiment of the present invention. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] This embodiment provides a fixing structure for a range hood sound-absorbing box 1, used to fix the sound-absorbing box 1 to the fan frame 2 of the range hood. See [link / reference]. Figures 1-8 As shown, the fan frame 2 houses a fan system 3. The fan frame 2 includes a left side panel 21, a rear side panel 22, a right side panel 23, and a front cover plate 24, which are connected in sequence to form a frame-shaped main body. The lower side of the frame-shaped main body is open as an air inlet, and the top of the frame-shaped main body is provided with a top cover plate 25, on which an air outlet 251 is provided. The front vertical edge of the left side panel 21 has a left folded edge 211 that extends to the right and bends. The right side panel 21... The front vertical edge of 3 has a right folded edge 231 that bends to the left. Both the left folded edge 211 and the right folded edge 231 are "┑" shaped, each including a horizontal folded edge and a vertical folded edge. The horizontal folded edge of the left folded edge 211 has two spaced left notches 212, and the horizontal folded edge of the right folded edge 231 has two spaced right notches 232. The vertical folded edge of the left folded edge 211 has two spaced left clearance holes 213. The right folded edge 231... Two spaced right clearance holes 233 are opened on the vertical folded edge of the sound-absorbing box 1. The horizontal width of the sound-absorbing box 1 is equal to or slightly greater than the distance between the vertical folded edge of the upper left folded edge 211 and the vertical folded edge of the right folded edge 231. Two left locking pieces 11 and two right locking pieces 12 are formed or connected on the left and right sides of the sound-absorbing box 1, respectively. Two spaced left protruding bulges 13 and two spaced right protruding bulges 14 are formed on the left and right side walls of the sound-absorbing box 1. The sound-absorbing box 1 can be inserted between the left side panel 21 and the right side panel 23 from bottom to top. After the sound-absorbing box 1 is installed in place, the two left locking pieces 11 and the two right locking pieces 12 on the sound-absorbing box 1 can be inserted into the two left notches 212 and the two right notches 232, respectively. The two left protruding bulges 13 and the two right protruding bulges 14 on the sound-absorbing box 1 can be inserted into the two left clearance holes 213 and the two right clearance holes 233, respectively. Furthermore, the right edge of the left notch 212 extends to the corner of the left fold 211 of the “┑” shape, and the left edge of the right notch 232 extends to the corner of the right fold 231 of the “┑” shape.

[0022] In this embodiment, a left positioning hole 214 is formed on the horizontal folded edge of the left folded edge 211, and a right positioning hole 234 is formed on the horizontal folded edge of the right folded edge 231. The left and right sides of the inner surface of the front cover plate 24 are formed with a left positioning piece 241 and a right positioning piece 242, respectively, which can be inserted into the left and right positioning holes 234. Both the left and right positioning pieces 241 and 242 have L-shaped hooks at their ends. The left and right positioning holes 234 each include a coarse-diameter portion and a fine-diameter portion that are interconnected, and these portions are connected by an inclined surface. The top of the front cover plate is fixed to the top cover plate by screws.

[0023] In this embodiment, the installation steps for the sound-absorbing box and the fan frame are as follows:

[0024] 1. Insert the sound-absorbing box 1 from bottom to top between the left side panel 21 and the right side panel 23. The sound-absorbing box 1 is initially positioned in front-back, up-down, and left-right directions by the tight fit between the left protruding bulge 13 and the right protruding bulge 14 on the left and right sides of the sound-absorbing box 1 and the left folded edge 211 and the right folded edge 231. In this embodiment, the left side panel 21 and the right side panel 23 of the fan frame are elastic and can be slightly opened to the left and right.

[0025] 2. After the sound-absorbing box is pressed upward into place, the two left locking pieces 11 and the two right locking pieces 12 on the sound-absorbing box 1 can be just right to be inserted into the two left notches 212 and the two right notches 232 respectively, further strengthening the upper and lower limits;

[0026] 3. Cover the front cover plate 24, so that the left positioning piece 241 and the right positioning piece 242 on the front cover plate 24 are engaged in the left positioning hole 234 and the right positioning hole 234, and finally slide the front cover plate 24 downward to further prevent the front cover plate 24 from loosening.

[0027] 4. Secure the top of the front cover to the top cover with screws to prevent the fan cover from falling off.

Claims

1. A fixing structure for a sound-absorbing box of a range hood, used to fix a sound-absorbing box (1) on a fan frame (2) of a range hood, wherein a fan system (3) is provided inside the fan frame (2), the fan frame (2) includes a left side panel (21), a rear side panel (22), a right side panel (23), and a front cover plate (24) that can be connected in sequence to form a frame-shaped main body, the lower side of the frame-shaped main body is open as an air inlet, and a top cover plate (25) is provided on the top of the frame-shaped main body, and an air outlet (251) is provided on the top cover plate (25), characterized in that: The left side panel (21) has a left folded edge (211) extending to the right and bending along its front vertical edge, and the right side panel (23) has a right folded edge (231) bending to the left along its front vertical edge. Both the left folded edge (211) and the right folded edge (231) are "┑" shaped and include a horizontal folded edge and a vertical folded edge. The horizontal folded edge of the left folded edge (211) has a left notch (212), and the horizontal folded edge of the right folded edge (231) has a right notch (232). The vertical folded edge of the left folded edge (211) has a left clearance hole (213), and the vertical folded edge of the right folded edge (231) has a right clearance hole (233). The horizontal width of the sound-absorbing box (1) is equal to or slightly larger than the vertical folded edge and the right folded edge of the upper left folded edge (211). The distance between the vertical folded edges in the edge (231), the left and right sides of the sound-absorbing box (1) are respectively formed or connected with a left locking piece (11) and a right locking piece (12), the left and right side walls of the sound-absorbing box (1) are respectively formed with a left protruding bulge (13) and a right protruding bulge (14), the sound-absorbing box (1) can be inserted from bottom to top between the left side panel (21) and the right side panel (23), and after the sound-absorbing box (1) is installed in place, the left locking piece (11) and the right locking piece (12) on the sound-absorbing box (1) can be inserted into the left notch (212) and the right notch (232) respectively, and the left protruding bulge (13) and the right protruding bulge (14) on the sound-absorbing box (1) can be inserted into the left clearance hole (213) and the right clearance hole (233) respectively.

2. The fixing structure for the sound-absorbing box of a range hood according to claim 1, characterized in that: The right edge of the left notch (212) extends to the corner of the left fold (211) of the "┑" shape, and the left edge of the right notch (232) extends to the corner of the right fold (231) of the "┑" shape.

3. The fixing structure for the sound-absorbing box of a range hood according to claim 1, characterized in that: The left fold (211) has a left positioning hole (214) on its horizontal fold, and the right fold (231) has a right positioning hole (234) on its horizontal fold. The left and right sides of the inner side of the front cover plate (24) are provided with a cover plate left positioning piece (241) and a cover plate right positioning piece (242) that can be respectively inserted into the left positioning hole (214) and the right positioning hole (234).

4. The fixing structure for the sound-absorbing box of a range hood according to claim 3, characterized in that: The ends of the left positioning piece (241) and the right positioning piece (242) of the cover plate are both formed with L-shaped hooks.

5. The fixing structure for the sound-absorbing box of a range hood according to claim 3, characterized in that: The left positioning hole (214) and the right positioning hole (234) both include a coarse diameter portion and a fine diameter portion that are interconnected, and the coarse diameter portion and the fine diameter portion are connected by an inclined surface.

6. The fixing structure for the sound-absorbing box of a range hood according to claim 1, characterized in that: The left folded edge has two sets of left notches (212) and left clearance holes (213), and the right folded edge has two sets of right notches (232) and right clearance holes (233). Correspondingly, the left and right sides of the sound-absorbing box are respectively formed or connected with two sets of left locking plates and right locking plates, as well as two sets of left protruding bulges (13) and right protruding bulges (14). The two sets of left locking plates can be inserted into the two sets of left notches (212) respectively, and the two sets of right locking plates can be inserted into the two sets of right notches (232) respectively. The two sets of left protruding bulges (13) and the two sets of right protruding bulges (14) can be respectively inserted into the two sets of left clearance holes (213) and right clearance holes (233).

7. The range hood sound-absorbing box fixing structure according to any one of claims 1 to 6, characterized in that: The top of the front cover plate is fixed to the top cover plate by screws.

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