Range hood

Abstract

The utility model relates to the field of range hoods, and discloses a range hood, which comprises a shell, a first fan, an oil-smoke separator, a sound insulation component and a turning cover, an air draft space and an oil-smoke separation space are arranged in the shell, the oil-smoke separation space is arranged below the air draft space, and the turning cover is arranged below the air draft space. The oil-smoke separation space is communicated with the air draft space, the oil-smoke separator is arranged on the shell, an air draft hole is formed in the front side face of the shell, the air draft hole is communicated with the oil-smoke separation space, the oil-smoke separator covers the air draft hole, the first fan is arranged in the air draft space, and the second fan is arranged in the air draft space. The sound insulation assembly is arranged on the inner wall of the air draft space, the turning cover is arranged on the outer shell, the turning cover is hinged to the outer shell, so that the axis of relative rotation of the turning cover and the outer shell extends in the transverse direction, the hinged position of the turning cover and the outer shell is located above the air draft hole, and the turning cover can cover the air draft hole.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to a range hood. Background Art

[0002] A wall-mounted range hood is usually installed on a wall, and its exhaust port is usually tilted downward toward the stove to extract the oil smoke. However, when its first fan is in operation, wind noise is generated, and this wind noise mainly transmits sound to the outside along the channel, resulting in relatively loud noise at its exhaust port. Utility Model Content

[0003] The technical problem to be solved by the utility model is to solve at least one of the technical problems mentioned above.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A range hood comprises a shell, a first fan and an oil fume separator, the range hood further comprising a sound insulation component and a flap, the shell is provided with an exhaust space and an oil fume separation space, the oil fume separation space is arranged below the exhaust space, the oil fume separation space and the exhaust space are communicated, the oil fume separator is arranged on the shell, an exhaust hole is opened on the front side surface of the shell, the exhaust hole is communicated with the oil fume separation space, the oil fume separator covers the exhaust hole, the first fan is arranged in the exhaust space, the sound insulation component is arranged on the inner wall of the exhaust space, the flap is arranged on the shell, the flap and the shell are hinged so that the axis of relative rotation between the flap and the shell extends laterally, the hinge between the flap and the shell is located above the exhaust hole, and the flap can cover the exhaust hole.

[0006] As a further improvement of the above technical solution, the range hood also includes an electric push rod and a connecting frame, the electric push rod is fixed on the connecting frame, a mounting seat is provided on the outer shell, the mounting seat and the connecting frame are hinged, and the electric push rod and the flip cover are hinged.

[0007] As a further improvement of the above technical solution, the flip cover includes a flip cover body and a first connecting plate, the upper side of the flip cover body is hinged to the shell, the first connecting plate is fixed on the flip cover body, and the first connecting plate is hinged to the electric push rod.

[0008] As a further improvement of the above technical solution, the shell is provided with a through hole penetrating the shell, and the connecting plate is inserted into the through hole.

[0009] As a further improvement of the above technical solution, it also includes a bracket, an up-down adjustment mechanism and a hook; the bracket is used to be installed on a wall; two up-down adjustment mechanisms are provided, and the two up-down adjustment mechanisms are respectively provided on the bracket; two hooks are provided, and the two hooks are hung on the two up-down adjustment mechanisms one by one, and the up-down adjustment mechanism can adjust the height position of the hook up and down, and the hook is fixed on the shell.

[0010] As a further improvement of the above technical solution, each of the up and down adjustment mechanisms includes an adjustment plate, a guide member, a second connecting plate and an adjustment bolt. The bracket is provided with two first connecting holes, the guide member is fixed to the bracket, the guide member is used to guide the adjustment plate along the up and down directions, the adjustment bolt is arranged vertically, and the second connecting plate is provided with two second connecting holes. The adjustment plate and the second connecting plate are fixedly connected, the adjustment bolt passes through the first connecting hole and the second connecting hole one by one, and the hook is hung on the adjustment plate.

[0011] As a further improvement of the above technical solution, the bracket includes a back plate and a mounting plate, the back plate extends vertically and is used to be fixed on the wall, the mounting plate extends horizontally and is fixed on the back plate, the mounting plate is arranged above the hook, and the first connecting hole is opened on the first mounting plate.

[0012] As a further improvement of the above technical solution, the first fan includes a fan body, which is a volute first fan. The air outlet end of the volute first fan faces upward, and the edge of the intersection of the air inlet end face of the volute of the volute first fan and the side of the volute is provided with a bevel, so that the inner wall of the outer shell also forms a corresponding bevel, and the width of the bevel gradually decreases from bottom to top.

[0013] As a further improvement of the above technical solution, the sound insulation component includes at least three pieces of sound insulation cotton, all of which are arranged in the exhaust space, and the sound insulation cotton is arranged on the left side, right side and rear side of the first fan.

[0014] As a further improvement of the above technical solution, a plurality of sound-absorbing holes are provided on the sound-insulating cotton.

[0015] As a further improvement of the above technical solution, the first fan includes a fan body and a fan frame, the fan frame is fixedly connected to the casing, the fan frame is arranged in the exhaust space, the fan body is fixed on the fan frame, the fan body and the fan frame separate the exhaust space into a first space and a second space arranged front to back, the second space is connected to the oil fume separation space, the exhaust port of the fan body faces the second space, and the sound insulation cotton is arranged in the second space.

[0016] The beneficial effect of the utility model is that through the setting of the sound insulation component, the noise generated by the first fan during operation can be effectively absorbed, thereby achieving the purpose of reducing the noise generated when the range hood is working. When the first fan is working, the air mixed with oil smoke from the outside enters the oil smoke separation space from the exhaust point. When the air mixed with oil smoke passes through the oil smoke separator, the oil smoke is blocked by the oil smoke separator. Then, the air separated from the oil smoke enters the exhaust space and is transmitted to the outside through the first fan. Through the setting of the flap, on the one hand, it can play a guiding role for the external oil smoke, reducing the oil smoke from escaping upward and leaving the exhaust hole; on the other hand, the noise transmitted from the exhaust hole can be guided in the direction of transmission, thereby reducing the noise transmitted to the ears of the operator who is cooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the range hood of the utility model;

[0018] Figure 2 The utility model Figure 1 Axonometric section view at AA in the figure;

[0019] Figure 3 The utility model Figure 1 Axonometric section view at BB in the figure;

[0020] Figure 4 It is an axonometric drawing of the range hood of the utility model;

[0021] Figure 5 It is a side schematic diagram of the installation structure of the utility model;

[0022] Figure 6 It is a front schematic diagram of the range hood of the utility model;

[0023] Figure 7 The utility model Figure 6 The enlarged view of J in FIG.

[0024] Figure 8 It is an axonometric drawing of the range hood of the utility model;

[0025] Fig. 9 The utility model Figure 8 The enlarged view of K;

[0026] Fig.10 It is an axonometric drawing of the volute fan of the present utility model.

[0027] In the attached drawings: a1-housing, a10-air inlet, a11-through hole, a12-first shielding plate, a13-second shielding plate, a14-mounting seat, a21-connecting frame, a22-electric push rod, a31-flip cover body, a32-first connecting plate, a5-first fan, a51-fan body, a510-inclined surface, a52-fan frame, a6-oil fume separator, b1-bracket, b1 1-back plate, b12-mounting plate, b21-adjusting plate, b211-first horizontal plate, b212-first vertical plate, b22-guide, b221-transverse plate, b2210-guide hole, b222-vertical plate, b23-second connecting plate, b24-adjusting bolt, b3-hook, c1-sound insulation cotton, c11-silencer hole, c21-exhaust space, c22-oil fume separation space. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the above briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connections / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0030] Reference Figures 1 to 9A range hood, comprising a housing a1, a first fan a5 and a fume separator a6, the range hood further comprising a sound insulation component and a flip cover, the housing a1 is provided with an exhaust space c21 and an oil fume separation space c22, the oil fume separation space c22 is arranged below the exhaust space c21, the oil fume separation space c22 is connected to the exhaust space c21, the oil fume separator a6 is arranged on the housing a1, the front side of the housing a1 is provided with an exhaust hole, the exhaust hole is connected to the exhaust space c21, In the oil fume separation space c22, the oil fume separator a6 covers the exhaust hole, the first fan a5 is arranged in the exhaust space c21, the sound insulation component is arranged on the inner wall of the exhaust space c21, the flap is arranged on the shell a1, the flap and the shell a1 are hinged, so that the axis of relative rotation between the flap and the shell a1 extends laterally, and the hinge between the flap and the shell a1 is located above the exhaust hole, and the flap can cover the exhaust hole.

[0031] From the above, it can be concluded that by setting up the sound insulation component, the noise generated by the first fan a5 during operation can be effectively absorbed, thereby achieving the purpose of reducing the noise generated when the range hood is working. When the first fan a5 is working, the air mixed with oil smoke from the outside enters the oil smoke separation space c22 from the exhaust point. When the air mixed with oil smoke passes through the oil smoke separator a6, the oil smoke is blocked by the oil smoke separator a6. Then, the air separated by the oil smoke enters the exhaust space and is transmitted to the outside through the first fan a5. Through the setting of the flip cover, on the one hand, it can play a guiding role for the external oil smoke, reducing the oil smoke from escaping upward and leaving the exhaust hole; on the other hand, the noise transmitted from the exhaust hole can be guided in the direction of transmission, thereby reducing the noise transmission to the ears of the operator who is cooking.

[0032] Generally, an exhaust hole is provided at the top of the housing a1, and the output end of the first fan a5 is connected to the exhaust hole, so that the air separated from the oil smoke is blown to the outside.

[0033] In some embodiments, the range hood further comprises an electric push rod a22 and a connecting frame a21, the electric push rod a22 is fixed on the connecting frame a21, a mounting seat a14 is provided on the housing a1, the mounting seat a14 is hinged to the connecting frame a21, and the electric push rod a22 is hinged to the flip cover. Both ends of the electric push rod a22 are respectively hinged to the flip cover and the mounting seat a14 on the housing a1, and the electric push rod a22 can drive the flip cover to swing around the hinge between the flip cover and the housing a1 under the telescopic movement.

[0034] In some embodiments, the flip cover includes a flip cover body a31 and a first connecting plate a32, the upper side of the flip cover body a31 is hinged to the shell a1, the first connecting plate a32 is fixed to the flip cover body a31, and the first connecting plate a32 is hinged to the electric push rod a22. The structure is simple and easy to set. In actual use, the upper side of the flip cover body a31 is hinged to the shell a1.

[0035] In some embodiments, the housing a1 is provided with a through hole a11 penetrating the housing a1, and the first connecting plate a32 is inserted into the through hole a11. In this way, the connection between the first connecting plate a32 and the flip cover body a31 can be facilitated, and the connection between the first connecting plate a32 and the electric push rod a22 can be facilitated. The electric push rod a22 is arranged behind the air vent, and the flip cover body a31 is arranged in front of the air vent. Through the setting of the through hole a11, the first connecting plate a32 can connect the flip cover body a31 located in front of the air vent and the electric push rod a22 located behind the air vent.

[0036] In some embodiments, two electric push rods a22 are provided, two first connecting plates a32 are provided, two through holes a11 are provided, the through holes a11, the first connecting plates a32 and the electric push rods a22 are provided in a one-to-one correspondence, and the two first connecting plates a32 are respectively fixed to the flip cover body a31. In this way, the flip cover body a31 can be turned stably.

[0037] After the oil smoke enters the exhaust hole, it may spread to the electric push rod a22. In order to reduce the oil smoke sticking to the electric push rod a22, in some embodiments, the oil smoke separation space c22 is provided with a first shielding plate a12, and the first shielding plate a12 is arranged between the exhaust hole and the electric push rod a22. The first shielding plate a12 can guide the oil smoke on the one hand, and can also shield the electric push rod a22 on the other hand, reducing the oil smoke sticking to the electric push rod a22.

[0038] In some embodiments, two of the first baffle plates a12 and two of the electric push rods a22 are provided, and the two first baffle plates a12 are provided on the left and right sides of the air inlet a10, respectively, and the two first baffle plates a12 are provided between the two electric push rods a22. The structure is simple and convenient to set up. The two electric push rods a22 drive the flip cover body a31 to swing, and the swinging motion of the flip cover body a31 is very stable. In addition, by providing the two first baffle plates a12, the two electric push rods a22 can be effectively shielded, and the oil smoke entering the air inlet a10 can be guided. Accordingly, when two electric push rods a22 are provided, two connecting frames a21 are also provided, and the connecting frames a21 and the electric push rods a22 are provided in a one-to-one correspondence.

[0039] In order to further guide the oil smoke entering the air inlet a10, in some embodiments, the housing a1 is provided with two second shielding plates a13, the second shielding plates a13 are arranged in the oil smoke separation space c22, and the two shielding plates and the two second shielding plates a13 form a rectangular frame, and the rectangular frame is arranged around the air extraction hole. The structure is simple and the arrangement is convenient.

[0040] In some embodiments, the range hood further includes a bracket b1, an up-down adjustment mechanism and a hook b3; the bracket b1 is used to be installed on a wall; two up-down adjustment mechanisms are provided, and the two up-down adjustment mechanisms are respectively provided on the bracket b1; two hooks b3 are provided, and the two hooks b3 are hung on the two up-down adjustment mechanisms in a one-to-one correspondence, and the up-down adjustment mechanism can adjust the height position of the hook b3 up and down, and the hook b3 is fixed on the shell a1.

[0041] In actual use, the operator can first fix the bracket b1 to the wall. Then the range hood with two hooks b3 is hooked to the upper and lower adjustment mechanism through the hooks b3. The upper and lower adjustment mechanisms correspond to the hooks b3 one by one. If the range hood is tilted, the operator can adjust the relative height of the two hooks b3 by adjusting two or any one of the upper and lower adjustment mechanisms, so as to level the range hood. In this way, the installation and positioning of the range hood can be facilitated.

[0042] The bracket b1 is fixedly connected to the wall, for example, the operator can use screws to lock the bracket b1 on the wall. Of course, other connection methods can also be used. For example, if the wall is a steel structure, the operator can also use welding to fix the bracket b1 to the wall.

[0043] In some embodiments, each of the up-and-down adjustment mechanisms includes an adjustment plate b21, a guide member b22, a second connecting plate b23, and an adjustment bolt b24. The bracket b1 is provided with two first connecting holes. The guide member b22 is fixed to the bracket b1. The guide member b22 is used to guide the adjustment plate b21 in the up-and-down direction. The adjustment bolt b24 is arranged vertically. The second connecting plate b23 is provided with two second connecting holes. The adjustment plate b21 and the second connecting plate b23 are fixedly connected. The adjustment bolt b24 passes through the first connecting hole and the second connecting hole in a one-to-one correspondence, and the hook b3 is hung on the adjustment plate b21. The guide member b22 can guide the adjustment plate b21 so that the adjustment plate b21 moves in the up-and-down direction. When the height of the hook b3 needs to be adjusted, the adjustment bolt b24 can be rotated to adjust the matching position of the adjustment bolt b24 and the second connecting hole.

[0044] For example, the adjusting bolt b24 and the second connecting hole can be threadedly matched, and the first connecting hole can axially limit the adjusting bolt b24, but the adjusting bolt b24 can rotate relative to the first connecting hole. When the adjusting bolt b24 is rotated, the adjusting bolt b24 and the second connecting hole are matched with each other through the thread, and the matching position of the adjusting bolt b24 and the second connecting hole is adjusted, thereby adjusting the relative position between the adjusting bolt b24 and the second connecting plate b23.

[0045] Of course, other methods are also used. For another example, two nuts can be threadedly connected to the adjusting bolt b24, so that the second connection hole is located between the two nuts, and the two nuts are used to clamp the second connecting plate b23, and then the adjusting bolt b24 is rotated to make the adjusting bolt b24 and the nut rotate relative to each other to adjust the position of the second connecting plate b23.

[0046] The guide member b22 is used to guide and limit the adjustment plate b21. In some embodiments, the guide member b22 includes a transverse plate b221, which is fixed to the bracket b1. The transverse plate b221 is provided with a guide hole b2210, and the adjustment plate b21 is inserted into the guide hole b2210. When in use, the transverse plate b221 is arranged in the transverse direction, and the adjustment plate b21 is inserted into the guide hole b2210. The guide hole b2210 can be used to guide and limit the adjustment plate b21, and the arrangement is convenient.

[0047] In order to facilitate the adjustment of the height of the adjustment plate b21, in some embodiments, the second connecting plate b23 is arranged above the horizontal plate b221. The second connecting plate b23 is arranged above the horizontal plate b221. At this time, the outer diameter of the bolt head of the adjusting bolt b24 can be made larger than the first connecting hole, so that the adjusting bolt b24 can be hung in the first connecting hole. At the same time, the adjusting bolt b24 can rotate relative to the first connecting hole. Under the action of gravity, the adjusting bolt b24 is hung at the first connecting hole.

[0048] In order to further improve the stability of the adjustment plate b21, the adjustment plate b21 is limited in the front-to-back direction. In some embodiments, the guide member b22 further includes a vertical plate b222, which is fixed on the horizontal plate b221, extends vertically, and is arranged in front of the adjustment plate b21, so that the adjustment plate b21 is arranged between the vertical plate b222 and the wall. In this way, the adjustment plate b21 is limited in the front-to-back direction by the vertical plate b222 and the wall.

[0049] The hook b3 is used to hang on the adjustment plate b21. In some embodiments, the hook b3 is arranged in a ring shape, and a hanging portion is extended from the adjustment plate b21, and the ring-shaped hook b3 is hung on the hanging portion. This structure is simple and convenient to set. The hook b3 is arranged in a ring shape. After the hook b3 is hung on the hanging portion, the initial limit between the hook b3 and the hanging portion can be achieved.

[0050] In order to make the hook b3 hang on the hanging part stably and reliably. In some embodiments, the hanging part includes a first horizontal plate b211 and a first vertical plate b212, the first horizontal plate b221 extends forward in sequence, the first vertical plate b212 is fixed on the first horizontal plate b221, the first vertical plate b222 extends vertically, the upper end of the first vertical plate b222 is higher than the top surface of the first horizontal plate b221, the hook b3 is hung on the first horizontal plate b221, and the hook b3 is arranged between the first vertical plate b222 and the adjustment plate b21. The structure is simple and easy to arrange. By setting the first vertical plate b222, the hook b3 can be limited in the front and rear directions.

[0051] The bracket b1 is used to be mounted on a wall. In some embodiments, the bracket b1 includes a back plate b11 and a mounting plate b12, the back plate b11 extends vertically and is used to be fixed on the wall, the mounting plate b12 extends horizontally and is fixed on the back plate b11, the mounting plate b12 is arranged above the hook b3, and the first connection hole is provided on the first mounting plate b12. The structure is simple and convenient to set up.

[0052] In order to make the structure simple and the installation convenient, in some embodiments, the two up and down adjustment mechanisms are arranged along the left and right sides.

[0053] In some embodiments, the sound insulation component includes at least three pieces of sound insulation cotton c1, all of which are arranged in the exhaust space c21, and the sound insulation cotton c1 is arranged on the left side, right side and rear side of the first fan a5. The structure is simple and easy to set up. Through the setting of the sound insulation cotton c1, the noise generated during the operation of the first fan a5 can be effectively absorbed.

[0054] In some embodiments, the sound insulation cotton c1 is provided with a plurality of sound-absorbing holes c11. The structure is simple and the arrangement is convenient. The sound-absorbing holes c11 can absorb noise.

[0055] In some embodiments, the first fan a5 includes a first fan a5 body and a first fan a5 frame, the first fan a5 frame is fixedly connected to the housing a1, the first fan a5 frame is arranged in the exhaust space c21, the first fan a5 body is fixed on the first fan a5 frame, the first fan a5 body and the first fan a5 frame separate the exhaust space c21 into a first space and a second space arranged front and back, the second space is connected to the oil fume separation space c22, the exhaust port of the first fan a5 body faces the second space, and the sound insulation cotton c1 is arranged in the second space. The structure is simple, the setting is convenient, the gas flow is smooth, and the exhaust port of the first fan a5 body is facing away from the exhaust hole, which further achieves the effect of noise reduction.

[0056] In some embodiments, the first fan a5 includes a fan body a51, the fan body a51 is the first fan a5 of the volute, the air outlet of the first fan a5 of the volute faces upward, and the edge of the intersection of the air inlet end face of the volute of the first fan a5 of the volute and the side of the volute is provided with a bevel a510, so that the inner wall of the shell a1 also forms a corresponding bevel a510, and the width of the bevel a510 gradually decreases from bottom to top. In this way, the air flow enters the first fan a5 of the volute, and the air flow gradually moves toward the outlet of the first fan a5 of the volute with the guidance of the bevel a510, so that the air flow in the volute is smoother, so as to achieve the effect of reducing wind noise.

[0057] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A range hood, comprising a housing (a1), a first fan (a5) and a fume separator (a6), characterized in that: It also includes a sound insulation component and a flip cover, the shell (a1) is provided with an exhaust space (c21) and an oil fume separation space (c22), the oil fume separation space (c22) is arranged below the exhaust space (c21), the oil fume separation space (c22) and the exhaust space (c21) are connected, the oil fume separator (a6) is arranged on the shell (a1), the front side of the shell (a1) is provided with an exhaust hole, the exhaust hole is connected to the oil fume separation space (c22), The fume separator (a6) covers the exhaust hole, the first fan (a5) is arranged in the exhaust space (c21), the sound insulation component is arranged on the inner wall of the exhaust space (c21), the flap is arranged on the outer shell (a1), the flap and the outer shell (a1) are hinged, so that the axis of relative rotation between the flap and the outer shell (a1) extends laterally, the hinge between the flap and the outer shell (a1) is located above the exhaust hole, and the flap can cover the exhaust hole.

2. The range hood according to claim 1, characterized in that: The range hood also includes an electric push rod (a22) and a connecting frame (a21), the electric push rod (a22) is fixed on the connecting frame (a21), a mounting seat (a14) is provided on the outer shell (a1), the mounting seat (a14) and the connecting frame (a21) are hinged, and the electric push rod (a22) and the flip cover are hinged.

3. The range hood according to claim 2, characterized in that: The flip cover includes a flip cover body (a31) and a first connecting plate (a32), the upper side of the flip cover body (a31) is hinged to the shell (a1), the first connecting plate (a32) is fixed on the flip cover body (a31), and the first connecting plate (a32) and the electric push rod (a22) are hinged.

4. The range hood according to claim 3, characterized in that: The shell (a1) is provided with a through hole (a11) penetrating the shell (a1), and the first connecting plate (a32) is inserted into the through hole (a11).

5. The range hood according to claim 1, characterized in that: It also includes a bracket (b1), an up-down adjustment mechanism and a hook (b3); the bracket (b1) is used to be installed on a wall; two up-down adjustment mechanisms are provided, and the two up-down adjustment mechanisms are respectively provided on the bracket (b1); two hooks (b3) are provided, and the two hooks (b3) are hung on the two up-down adjustment mechanisms in a one-to-one correspondence; the up-down adjustment mechanism can adjust the height position of the hook (b3) up and down, and the hook (b3) is fixed on the shell (a1).

6. The range hood according to claim 5, characterized in that: Each of the up and down adjustment mechanisms comprises an adjustment plate (b21), a guide member (b22), a second connecting plate (b23) and an adjustment bolt (b24); the bracket (b1) is provided with two first connecting holes; the guide member (b22) is fixed to the bracket (b1); the guide member (b22) is used to guide the adjustment plate (b21) in the up and down directions; the adjustment bolt (b24) is arranged vertically; the second connecting plate (b23) is provided with two second connecting holes; the adjustment plate (b21) and the second connecting plate (b23) are fixedly connected; the adjustment bolt (b24) passes through the first connecting hole and the second connecting hole one by one and is connected; the hook (b3) is hung on the adjustment plate (b21).

7. The range hood according to claim 1, characterized in that: The first fan (a5) includes a fan body (a51), and the fan body (a51) is a volute first fan (a5). The air outlet end of the volute first fan (a5) faces upward, and the edge of the intersection of the air inlet end face of the volute of the volute first fan (a5) and the side of the volute is provided with a slope (a510), so that the inner wall of the outer shell (a1) also forms a corresponding slope (a510), and the width of the slope (a510) gradually decreases from bottom to top.

8. The range hood according to claim 1, characterized in that: The sound insulation component includes at least three pieces of sound insulation cotton (c1), all of which are arranged in the exhaust space (c21), and the sound insulation cotton (c1) is arranged on the left side, right side and rear side of the first fan (a5).

9. The range hood according to claim 8, characterized in that: The sound insulation cotton (c1) is provided with a plurality of sound-absorbing holes (c11).

10. The range hood according to claim 8, characterized in that: The first fan (a5) includes a fan body (a51) and a fan frame (a52), the fan frame (a52) is fixedly connected to the casing (a1), the first fan (a5) frame is arranged in the exhaust space (c21), the first fan (a5) body is fixed on the fan frame (a52), the fan body (a51) and the fan frame (a52) separate the exhaust space (c21) into a first space and a second space arranged front to back, the second space is connected to the oil fume separation space (c22), the exhaust port of the fan body (a51) faces the second space, and the sound insulation cotton (c1) is arranged in the second space.

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