Air bellow assembly and range hood with air bellow assembly

Abstract

The utility model discloses an air bellow assembly and a range hood with the air bellow assembly, the air bellow assembly comprises an inner air bellow, a back plate of the inner air bellow is provided with a connecting piece, and a mounting position is arranged between the connecting piece and the back plate of the inner air bellow; the outer air bellow is connected to the outlet of the inner air bellow, an access hole is formed in the outer air bellow, mounting surfaces are arranged on the left side, the right side and the upper side of the access hole, and the mounting surfaces sink towards the interior of the outer air bellow relative to the edges of the sides; the access cover is detachably mounted in the access hole, the lower edge of the access cover is mounted at the mounting position, the left side edge, the right side edge and the upper side edge of the access cover are supported on the mounting surface, the upper end of the access cover is in screw connection with the mounting surface at the corresponding position, and the lower end of the access cover is in screw connection with a back plate of the inner air bellow; compared with the prior art, according to the air bellow assembly, only the lower end and the upper end of the access cover are fixedly connected with the inner air bellow and the outer air bellow through the screws respectively, during assembling or disassembling, the number of screws needing to be hit or disassembled is small, and assembling and disassembling are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and in particular, to an air box assembly and a range hood having the same. Background Art

[0002] A range hood is used to suck cooking fumes when a user is performing a cooking operation, so as to discharge the cooking fumes generated by the user's cooking out of the kitchen. The exhaust fan of the range hood, as a power assembly of the range hood, is installed in the air box assembly of the range hood. In the existing range hood, the back plate of the air box assembly is a whole plate, and screws are required on the left side, upper side, right side and lower side of the back plate to connect with the connection surfaces of the air box assembly adapted to the back plate. When it is necessary to repair the exhaust fan, a relatively large number of screws need to be removed to take down the back plate, and both disassembly and installation are rather troublesome. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an air box assembly and a range hood having the same, which are used to solve the above technical problems.

[0004] An air box assembly for a range hood, comprising:

[0005] An inner air box, on the back plate of which there is a connecting piece, and there is an installation position between the connecting piece and the back plate of the inner air box;

[0006] An outer air box, which is connected to the outlet of the inner air box, and there is a maintenance opening on the outer air box. Installation surfaces are provided on the left side, right side and upper side of the maintenance opening, and the installation surfaces sink into the outer air box relative to the edges of the corresponding sides;

[0007] A maintenance cover, which is detachably installed in the maintenance opening. The lower edge of the maintenance cover is installed in the installation position, the left edge, right edge and upper edge of the maintenance cover are supported on the installation surfaces, the upper end of the maintenance cover is screwed to the corresponding installation surface, and the lower end of the maintenance cover is screwed to the back plate of the inner air box.

[0008] According to an embodiment of the utility model, the lower edge of the maintenance cover is provided with a connecting portion, the cross section of the connecting portion is V-shaped or arc-shaped, the concave surface of the connecting portion faces the front side surface of the maintenance cover, and the connecting portion is clamped in the installation position.

[0009] According to an embodiment of the utility model, the left edge, right edge and upper edge of the maintenance cover extend forward to the front side of the maintenance cover to form extension walls, the extension walls are perpendicular to the maintenance cover, and after the maintenance cover is installed in the maintenance opening, the extension walls abut against the installation surfaces.

[0010] According to an embodiment of the utility model, the length of the extension walls extending forward to the front side of the maintenance cover is adapted to the distance from the installation surface to the rear side of the back plate of the outer air box.

[0011] According to an embodiment of the present utility model, the outer air box includes a main board, a connecting board and a top board. The main board has a front board facing the user side, a left side board located on the left side of the front board, and a right side board located on the right side of the front board. The trailing edge of the left side board extends to the right to form a left rear board, and the trailing edge of the right side board extends to the left to form a right rear board. The left side and the right side of the connecting board are respectively connected to the left side board and the right side board of the main board, and the top board is connected to the left side board, the front board, the right side board and the rear board; the height of the lower edge of the connecting board is greater than the height of the left side board and the right side board, and the connecting board, the left rear board and the right rear board enclose a maintenance opening.

[0012] According to an embodiment of the present utility model, L-shaped flanges are provided at the edges of the left rear board, the edges of the right rear board and the lower edge of the connecting board, and the surface of the L-shaped flange parallel to the left rear board / right rear board / connecting board forms a mounting surface.

[0013] According to an embodiment of the present utility model, a left connecting piece parallel to the left side board of the main board is provided on the left side of the connecting board, and a right connecting piece parallel to the right side board of the main board is provided on the right side of the connecting board. The left connecting piece is connected to the left side board of the main board, and the right connecting piece is connected to the right side board of the main board.

[0014] According to an embodiment of the present utility model, recessed positions are provided on the left side and the right side of the connecting board, and insertion interfaces corresponding to the recessed positions are provided on the lower side of the recessed positions. Insertion pieces extend upward from the upper edges of the left rear board and the right rear board, and the insertion pieces enter the recessed positions through the insertion interfaces and are connected to the recessed positions.

[0015] According to an embodiment of the present utility model, the connecting piece includes a connecting piece connecting portion and a limiting portion. The connecting piece connecting portion is connected to the inner side of the back plate of the inner air box. A supporting portion extends forward from the upper edge of the connecting piece connecting portion, and the lower edge of the limiting portion is connected to the supporting portion. The limiting portion, the inner side wall surface of the back plate of the inner air box and the supporting portion enclose a mounting position.

[0016] A range hood adopts the above-mentioned air box assembly, and includes a wind collecting box and an exhaust fan. The inner air box is arranged in the wind collecting box, the outer air box extends out of the wind collecting box, an air suction port communicated with the inner air box is arranged on the wind collecting box, and the exhaust fan is arranged in the outer air box.

[0017] Compared with the prior art, the air box assembly of the present utility model has the following advantages:

[0018] For the air box assembly of the present utility model, only the lower end and the upper end of the maintenance cover are fixedly connected to the inner air box and the outer air box respectively by screws. When assembling or disassembling, the number of screws that need to be drilled or disassembled is relatively small, and both the assembly and disassembly are relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the air box assembly of the present utility model;

[0020] Figure 2It is a sectional view of the bellows assembly of the present utility model;

[0021] Figure 3 It is Figure 2 an enlarged view of A in

[0022] Figure 4 It is Figure 2 an enlarged view of B in

[0023] Figure 5 It is a structural schematic diagram of the main board of the outer bellows;

[0024] Figure 6 It is a structural schematic diagram of the connecting plate of the outer bellows;

[0025] Figure 7 It is a structural schematic diagram of a range hood with the bellows assembly of the present utility model;

[0026] Figure 8 It is a sectional view of a range hood with the bellows assembly of the present utility model;

[0027] In the figure: 1. Inner bellows, 11. Connector, 111. Connector connection part, 112. Limiting part, 113. Support part, 2. Outer bellows, 21. Inspection opening, 22. Installation surface, 23. Main board, 231. Left rear board, 232. Right rear board, 233. Insert piece, 24. Connecting plate, 241. Left connecting piece, 242. Right connecting piece, 243. Depression, 25. Top board, 3. Inspection cover, 31. Connection part, 32. Extension wall, 4. Air collecting box, 5. Exhaust fan.

[0028] The realization and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific Embodiments

[0029] The following will disclose multiple embodiments of the present utility model with diagrams. For the sake of clarity, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these practical details are unnecessary. In addition, for the purpose of simplifying the diagrams, some well-known and commonly used structures and components will be shown in a simple schematic manner in the diagrams.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0031] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] To further understand the content, features and effects of the present utility model, the following embodiments are hereby exemplified and described in detail in conjunction with the accompanying drawings:

[0033] Please refer to Figures 1 to 4 , the present utility model discloses a bellows assembly. The bellows assembly disclosed in the present utility model is used for a smoke machine and includes an inner bellows 1, an outer bellows 2 and a maintenance cover 3. A connecting member 11 is provided on the back plate of the inner bellows 1, and there is an installation position between the connecting member 11 and the back plate of the inner bellows 1; the outer bellows 2 is connected to the outlet of the inner bellows 1, and a maintenance opening 21 is provided on the outer bellows 2. Installation surfaces 22 are provided on the left, right and upper sides of the maintenance opening 21, and the installation surfaces 22 sink into the outer bellows 2 relative to the edges of the corresponding sides; the maintenance cover 3 is detachably installed in the maintenance opening 21, the lower edge of the maintenance cover 3 is installed in the installation position, the left edge, right edge and upper edge of the maintenance cover 3 are supported on the installation surfaces 22, the upper end of the maintenance cover 3 is screwed to the corresponding installation surface 22, and the lower end of the maintenance cover 3 is screwed to the back plate of the inner bellows 1.

[0034] For the bellows assembly of the present utility model, a maintenance opening 21 is provided on the outer bellows 2, and the maintenance cover 3 is installed in the maintenance opening 21. When installing the maintenance cover 3 into the maintenance opening 21, insert the lower edge of the maintenance cover 3 from the maintenance opening 21 so that the lower edge of the maintenance cover 3 is snapped into the installation position, and then push the maintenance cover 3 towards the installation surfaces 22 so that the left edge, right edge and upper edge of the maintenance cover 3 are supported on the installation surfaces 22. Then, screw the upper end of the maintenance cover 3 to the corresponding installation surface 22 and screw the lower end of the maintenance cover 3 to the back plate of the inner bellows 1, and the maintenance cover 3 can be installed in place in the maintenance opening 21. The installation of the maintenance cover 3 is relatively convenient; when it is necessary to remove the maintenance cover 3 from the maintenance opening 21, first remove the screws fixing the upper end of the maintenance cover 3 to the corresponding installation surface 22 of the outer bellows 2, then remove the screws fixing the lower end of the maintenance cover 3 to the back plate of the inner bellows 1, and then the maintenance cover 3 can be removed from the maintenance opening 21. The removal of the maintenance cover 3 is relatively time-saving and labor-saving.

[0035] For the inner air box assembly of the present utility model, only the lower end and the upper end of the inspection cover 3 are fixedly connected to the inner air box 1 and the outer air box 2 respectively by screws. When assembling or disassembling, the number of screws to be driven or removed is relatively small, and both the assembly and disassembly are relatively convenient.

[0036] For the inner air box assembly of the present utility model, when installing the inspection cover 3, first insert the lower edge of the inspection cover 3 into the installation position. After the inspection cover 3 is limited by the installation position, it is not easy to move, which facilitates the installation and fixation of the screws for the inspection cover 3, the inner air box and the outer air box 2.

[0037] For the inner air box assembly of the present utility model, after the inspection cover 3 is installed in the inspection opening 21, the back plate of the inner air box 1, the inspection cover 3 and the back plate of the outer air box 2 are located in the same plane, making the back plate of the air box assembly flat.

[0038] For the air box assembly of the present utility model, a sealing member is provided on the installation surface 22. After the inspection cover 3 is installed in the inspection opening 21, the sealing member is extruded between the inspection cover 3 and the installation surface 22, which can seal the gap between the inspection cover 3 and the installation surface 22 and prevent air leakage of the air box assembly.

[0039] Please refer to Figure 2 and Figure 3 , for the air box assembly of the present utility model, the lower edge of the inspection cover 3 is provided with a connecting portion 31. The cross-section of the connecting portion 31 is V-shaped or arc-shaped. The concave surface of the connecting portion 31 faces the front side of the inspection cover 3, and the connecting portion 31 is snap-fitted to the installation position. After the inspection cover 3 is installed in the installation position, the connecting portion 31 is snap-fitted in the installation position, which can make the inspection cover 3 firmly connected in the installation position. The protruding position of the connecting portion 31 abuts against the connecting member 11, and it can also play a sealing role.

[0040] Please refer to Figure 3 , for the air box assembly of the present utility model, the connecting member 11 includes a connecting member connecting portion 111 and a limiting portion 112. The connecting member connecting portion 111 is connected to the inner side of the back plate of the inner air box 1. The upper edge of the connecting member connecting portion 111 extends forward with a supporting portion 113. The lower edge of the limiting portion 112 is connected to the supporting portion 113. The limiting portion 112, the inner side wall surface of the back plate of the inner air box 1 and the supporting portion 113 enclose an installation position. When the lower edge of the inspection cover 3 is installed in the installation position, the connecting portion 31 is snapped between the inner side wall surface of the back plate of the inner air box 1 and the limiting portion 112.

[0041] Please refer to Figure 2 and Figure 4, for the bellows assembly of the present utility model, the left edge, right edge and upper edge of the inspection cover 3 extend towards the front side of the inspection cover 3 to form extension walls 32. The extension walls 32 are perpendicular to the inspection cover. After the inspection cover 3 is installed in the inspection opening 21, the extension walls 32 abut against the installation surface 22. In specific applications, the length that the extension walls 32 extend towards the front side of the inspection cover 3 is adapted to the distance from the installation surface 22 to the rear side of the back plate of the outer bellows 2. The installation surface 22 sinks towards the inside of the outer bellows 2 relative to the side edge where it is located. By providing the extension walls 32 that extend towards the front side of the inspection cover 3 on the left edge, right edge and upper edge of the inspection cover 3, after the inspection cover 3 is installed into the inspection opening 21, the rear surface of the inspection cover 3 and the rear side wall surface of the back plate of the outer bellows 2 are in the same plane.

[0042] Please refer to Figures 1 to 6 , for the bellows assembly of the present utility model, the outer bellows 2 includes a main board 23, a connecting board 24 and a top board 25. The main board 23 has a front board facing the user side, a left side board on the left side of the front board and a right side board on the right side of the front board. The rear edge of the left side board extends towards the right to form a left rear board 231, and the rear edge of the right side board extends towards the left to form a right rear board 232. The left side and the right side of the connecting board 24 are respectively connected to the left side board and the right side board of the main board 23, and the top board 25 is connected to the left side board, the front board, the right side board and the rear board; the height of the lower edge of the connecting board 24 is greater than the height of the left side board and the right side board. The connecting board 24, the left rear board 231 and the right rear board 232 enclose an inspection opening 21. The left rear board 231 and the right rear board 232 form the back plate of the outer bellows 2. After the inspection cover 3 is installed into the inspection opening 21, the inspection cover 3 and the left rear board 231 and the right rear board 232 are in the same plane.

[0043] Please refer to Figure 5 and Figure 6 , for the bellows assembly of the present utility model, L-shaped flanges are provided at the edge of the left rear board 231, the edge of the right rear board 232 and the lower edge of the connecting board 24. The plane of the L-shaped flange parallel to the left rear board 231 / right rear board 232 / connecting board 24 forms the installation surface 22. The depth that the L-shaped flange is recessed towards the inside of the outer bellows perpendicular to the edge of the left rear board 231 / right rear board 232 / connecting board 24 is adapted to the length that the extension wall 32 extends towards the front side of the inspection cover 3. After the inspection cover 3 is installed into the inspection opening 21, the outer side surface of the extension wall 32 abuts against the edge of the L-shaped flange perpendicular to the edge of the left rear board 231 / right rear board 232 / connecting board 24, and the outer edge of the extension wall 32 abuts against the installation surface 22.

[0044] Please refer to Figure 1 and Figure 6, for the bellows assembly of the present utility model, a left connecting piece 241 parallel to the left side plate of the main board 23 is provided on the left side of the connecting plate 24, and a right connecting piece 242 parallel to the right side plate of the main board 23 is provided on the right side of the connecting plate 24. The left connecting piece 241 is connected to the left side plate of the main board 23, and the right connecting piece 242 is connected to the right side plate of the main board 23. The connecting plate 24 is connected to the left side plate and the right side plate of the main board 23 through the left connecting piece 241 and the right connecting piece 242, which can enhance the strength of the outer bellows 2. In practical applications, the left rear plate 231 and the right rear plate 232 are stepped surfaces, and the planes where the parts of the left rear plate 231 and the right rear plate 232 corresponding to the connecting plate 24 are located are recessed forward relative to the other parts of the left rear plate 231 and the right rear plate 232. After the connecting plate 24 is connected to the main board 23, the connecting plate 24 is placed in the recessed part, and the rear side wall surface of the connecting plate 24 is in the same plane as the rear side wall surfaces of the left rear plate 231 and the right rear plate 232.

[0045] Please refer to Figure 1 , Figure 5 and Figure 6 , for the bellows assembly of the present utility model, recessed positions 243 are provided on the left and right sides of the connecting plate 24. Insertion interfaces corresponding to the recessed positions 243 are provided on the lower sides of the recessed positions 243. Insertion pieces 233 extend upward from the upper edges of the left rear plate 231 and the right rear plate 232. The insertion pieces 233 enter the recessed positions 243 through the insertion interfaces and are connected to the recessed positions 243. The connecting segments of the insertion pieces 233 with the left rear plate 231 and the right rear plate 232 are not in the same plane, and the insertion pieces 233 are recessed forward relative to the parts of the left rear plate 231 and the right rear plate 232 to which they are connected. When the connecting plate 24 is connected to the main board 23, the insertion pieces 233 enter the recessed positions 243 through the insertion interfaces, so that the connecting plate 24 is connected and positioned with the main board 23. Then, the left connecting piece 241 is connected to the left side plate of the main board 23 with screws, and the right connecting piece 242 is connected to the right side plate of the main board 23 with screws. Then, the insertion pieces 233 are connected to the recessed positions 243 with screws, and the connection between the connecting plate 24 and the main board 23 can be achieved.

[0046] Please refer to Figure 7 and Figure 8 , the present utility model also discloses a range hood. The range hood disclosed by the present utility model adopts the above-mentioned bellows assembly, including an air collecting hood 4 and an exhaust fan 5. The inner bellows 1 is arranged in the air collecting hood 4, the outer bellows 2 extends out of the air collecting hood 4, an air suction port communicating with the inner bellows 1 is provided on the air collecting hood 4, and the exhaust fan 5 is arranged in the outer bellows 2. Since the range hood of the present utility model adopts the above-mentioned bellows assembly, during assembly, after the inspection cover 3 is installed in place in the inspection opening, the inspection cover 3 can be connected and fixed to the inner bellows 1 and the outer bellows 2 with fewer screws, which can simplify the assembly process; when the exhaust fan 5 needs to be disassembled from the outer bellows 2 for maintenance, only a few screws need to be disassembled to remove the inspection cover 3, which is convenient for maintenance.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bellows assembly for a range hood, characterized in that, Comprising: An inner air box (1) with a connecting member (11) provided on its back plate, and there is an installation position between the connecting member (11) and the back plate of the inner air box (1); An outer air box (2) connected to the outlet of the inner air box (1), with a maintenance opening (21) provided on the outer air box (2), and installation surfaces (22) are provided on the left, right and upper sides of the maintenance opening (21), and the installation surfaces (22) sink into the outer air box (2) relative to the edges of the corresponding sides; A maintenance cover (3) detachably installed in the maintenance opening (21), the lower edge of the maintenance cover (3) is installed in the installation position, the left edge, right edge and upper edge of the maintenance cover (3) are supported on the installation surface (22), the upper end of the maintenance cover (3) is screwed to the corresponding installation surface (22), and the lower end of the maintenance cover (3) is screwed to the back plate of the inner air box (1).

2. The bellow assembly according to claim 1, characterized in that, The lower edge of the maintenance cover (3) is provided with a connecting portion (31), the cross section of the connecting portion (31) is V-shaped or arc-shaped, the concave surface of the connecting portion (31) faces the front side of the maintenance cover (3), and the connecting portion (31) is clamped in the installation position.

3. The bellow assembly according to claim 1, characterized in that, The left edge, right edge and upper edge of the maintenance cover (3) extend towards the front side of the maintenance cover (3) with extension walls (32), the extension walls (32) are perpendicular to the maintenance cover, and after the maintenance cover (3) is installed in the maintenance opening (21), the extension walls (32) abut against the installation surface (22).

4. The bellow assembly according to claim 3, wherein, The length that the extension wall (32) extends towards the front side of the maintenance cover (3) is adapted to the distance from the installation surface (22) to the rear side of the back plate of the outer air box (2).

5. The bellow assembly according to claim 1, characterized in that, The outer air box (2) includes a main board (23), a connecting board (24) and a top board (25), the main board (23) has a front board facing the user side, a left board on the left side of the front board and a right board on the right side of the front board, the rear edge of the left board extends to the right with a left rear board (231), the rear edge of the right board extends to the left with a right rear board (232), the left side and the right side of the connecting board (24) are respectively connected to the left board and the right board of the main board (23), and the top board (25) is connected to the left board, front board, right board and rear board; the height of the lower edge of the connecting board (24) is greater than the heights of the left board and the right board, and the connecting board (24), the left rear board (231) and the right rear board (232) enclose the maintenance opening (21).

6. The bellow assembly according to claim 5, characterized in that, The edges of the left rear board (231), the edges of the right rear board (232) and the lower edge of the connecting board (24) are provided with L-shaped flanges, and the surfaces of the L-shaped flanges parallel to the left rear board (231) / right rear board (232) / connecting board (24) form the installation surface (22).

7. The bellow assembly according to claim 5, characterized in that, On the left side of the connecting plate (24), there is a left connecting piece (241) parallel to the left side plate of the main board (23). On the right side of the connecting plate (24), there is a right connecting piece (242) parallel to the right side plate of the main board (23). The left connecting piece (241) is connected to the left side plate of the main board (23), and the right connecting piece (242) is connected to the right side plate of the main board (23).

8. The bellow assembly according to claim 5, characterized in that, On the left and right sides of the connecting plate (24), there are recessed positions (243). On the lower side of the recessed positions (243), there are insertion interfaces corresponding to the recessed positions (243). On the upper edges of the left rear plate (231) and the right rear plate (232), there are insertion pieces (233) extending upward. The insertion pieces (233) enter the recessed positions (243) through the insertion interfaces and are connected to the recessed positions (243).

9. The bellow assembly according to claim 1, wherein, The connecting member (11) includes a connecting member connecting portion (111) and a limiting portion (112). The connecting member connecting portion (111) is connected to the inner side of the back plate of the inner air box (1). On the upper edge of the connecting member connecting portion (111), there is a supporting portion (113) extending forward. The lower edge of the limiting portion (112) is connected to the supporting portion (113). The limiting portion (112), the inner side wall surface of the back plate of the inner air box (1), and the supporting portion (113) enclose the installation position.

10. A smoke machine, adopting the bellows assembly according to any one of claims 1 to 9, characterized in that, It includes a wind collecting box (4) and an exhaust smoke fan (5). The inner air box (1) is arranged in the wind collecting box (4). The outer air box (2) extends out of the wind collecting box (4). On the wind collecting box (4), there is an air suction port communicating with the inner air box (1). The exhaust smoke fan (5) is arranged in the outer air box (2).

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