CN213777830U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, including the range hood body that can be connected with outside installation basis, the range hood body includes the fan frame, sets up the fan system in the fan frame and sets up the collection petticoat pipe subassembly in fan frame below, and collection petticoat pipe subassembly is including collection petticoat pipe body, sets up the air intake with fan system fluid intercommunication on the collection petticoat pipe body, its characterized in that: the range hood body can be outside installation basis longitudinal movement relatively, the collection petticoat pipe subassembly still includes first baffle and second baffle, first baffle can be moved and at least part is located the inboard of collection petticoat pipe body or stretches out by the inboard front side direction of the collection petticoat pipe body of collection petticoat pipe body by the inboard direction of the preceding side direction collection petticoat pipe body of collection petticoat pipe body, the second baffle can be moved and at least part is located the inboard of collection petticoat pipe body or stretch out by the inboard rear side direction of collection petticoat pipe body to collection petticoat pipe body by the inboard direction of collection petticoat pipe body.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood has become one of indispensable kitchen household electrical appliances in modern family, and european style range hood has more and more extensive application because of advantages such as clean and light, occupation space is little. The european range hood generally comprises a fume collecting hood, a fan housing located on the fume collecting hood, and a volute, an impeller and a motor for driving the impeller are installed in the fan housing.

Chinese utility model patent of application number 201420478312.9 discloses an european style (ceiling type) range hood, including organism, collection petticoat pipe and smoke deflector, wherein the collection petticoat pipe is connected with the organism, is equipped with the fan in the organism, is equipped with the air intake on the collection petticoat pipe, and the guide plate is just to the air intake setting of collection petticoat pipe, and has the interval and form the oil smoke passageway between guide plate and the collection petticoat pipe, and smoke deflector's lower surface is wavy.

When the operating condition of excessive oil smoke is responded, in order to prevent oil smoke leakage, the European-style range hood usually increases the air volume by increasing the power of the motor, but the requirement on the motor is correspondingly increased after the power of the motor is increased, so that the power consumption is increased along with the increase of the air volume, the noise is also increased, and the use experience of a user is reduced; or the smoke collecting area is increased by adopting the large smoke collecting cover, but the large smoke collecting cover can increase the risk of shielding the sight of a user and bumping head when in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood, can increase the amount of wind through the negative pressure zone that reduces the range hood body to need not to increase motor power and increase collection petticoat pipe hold together the cigarette area, and can reduce the length on the fore-and-aft direction of collection petticoat pipe when the range hood body descends, thereby collection petticoat pipe can not shelter from user's sight when using.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the range hood body that can be connected with outside installation basis, the range hood body includes fan frame, sets up the fan system in the fan frame and sets up the collection petticoat pipe subassembly in fan frame below, collection petticoat pipe subassembly includes collection petticoat pipe body, set up the air intake with fan system fluid intercommunication on the collection petticoat pipe body, its characterized in that: the range hood body can be outside installation basis longitudinal movement relatively, collection petticoat pipe subassembly still includes first baffle and second baffle, first baffle can be moved and at least some is located the inboard of collection petticoat pipe body or stretches out to the front side direction of collection petticoat pipe body by the inboard direction of collection petticoat pipe body, the second baffle can be moved and at least some is located the inboard of collection petticoat pipe body or stretch out to the rear side direction of collection petticoat pipe body by the inboard of collection petticoat pipe body by the rear side direction of collection petticoat pipe body.

In order to realize the movement of the range hood body, the first baffle and the second baffle, the range hood comprises a first movement mechanism for driving the range hood body to move longitudinally and a second movement mechanism for driving the first baffle and the second baffle to move along the front-back direction.

In order to realize the longitudinal movement of the range hood body, the first movement mechanism comprises a first linear driving module and a connecting support, the first linear driving module is arranged outside the first linear driving module, the connecting support is driven by the first linear driving module, the first linear driving module comprises a first lead screw, a first sliding block and a first motor, the first lead screw is longitudinally arranged and can rotate around the axis of the first lead screw, the first sliding block moves along the length direction of the first lead screw through the rotation of the first lead screw, the first motor is used for driving the first lead screw to rotate, the connecting support is respectively connected with the first sliding block, the fan frame and the fan system, and a avoiding groove matched with the first linear driving module is formed in the fan frame.

In order to realize that the linking bridge can be connected with fan system, fan frame and first slider respectively, the linking bridge sets up between fan system and the first linear drive module, the linking bridge includes the linking bridge body that extends along the fan frame left and right sides direction and sets up the connecting portion at the linking bridge body about both ends respectively, the inner wall that connecting portion and fan frame left and right sides correspond the side is directly or indirectly connected, the linking bridge body is close to one side of first linear drive module and is connected with first slider, the fan system includes the spiral case, the linking bridge body is close to one side of fan system and the rear side direct or indirect connection of spiral case.

In order to realize the movement of the first baffle and the second baffle, the second movement mechanism comprises at least two second linear driving modules which are respectively corresponding to the first baffle and the second baffle, each second linear driving module is arranged on the inner side of the fan frame, each second linear driving module comprises a second lead screw which is transversely arranged along the front-back direction and can rotate around the axis of the second lead screw, a second sliding block which moves along the length direction of the second lead screw through the rotation of the second lead screw and a second motor which is used for driving the second lead screw to rotate, and each second sliding block is respectively connected with the corresponding first baffle and the corresponding second baffle.

In order to realize the movement of the first baffle plate and the second baffle plate, the fume collecting hood body is hollow, the front side and the rear side of the smoke collecting cover body are both provided with openings, the first baffle plate is arranged on the inner side of the smoke collecting cover body through the opening on the front side of the smoke collecting cover body, the second baffle plate is arranged on the inner side of the fume collecting hood body through an opening on the rear side of the fume collecting hood body, a first groove which is sunken from the rear side to the front side is formed at the top of the first baffle plate, a first baffle plate bracket extending downwards is arranged on at least one side of the first baffle plate positioned at the left side and the right side of the first groove, a second groove which is sunken from the front side to the rear side is formed at the top of the second baffle plate, a second baffle plate bracket which extends downwards is arranged on the second baffle plate and at least one side of the second baffle plate, which is positioned at the left side and the right side of the second groove, and the first baffle plate bracket and the second baffle plate bracket are respectively connected with the second slide blocks of the corresponding second linear driving modules.

In order to detect the distance between the fume collecting hood body and the cooker and detect the height of the user, the range hood further comprises a distance sensor which is arranged on the fume collecting hood body and used for detecting the distance between the fume collecting hood body and the cooker and the height of the user.

In order to set up distance sensor, collection petticoat pipe body includes by the bottom upwards sunken collection cigarette chamber that forms, the air intake is seted up at the top in collection cigarette chamber, distance sensor sets up the week portion at the top in collection cigarette chamber, air intake.

In order to maximize the smoke collecting area of the smoke collecting hood assembly when the range hood body rises and improve the air volume when the range hood body falls, the sight line of a user cannot be shielded, when the range hood body falls, the first baffle and the second baffle are close to each other, and when the range hood body rises along with the range hood assembly, the first baffle and the second baffle are far away from each other.

For aesthetic property, the range hood also comprises a fan outer cover sleeved outside the fan frame, and the fan outer cover forms the external installation foundation.

Compared with the prior art, the utility model has the advantages of: the range hood body which can longitudinally move relative to the external installation base is arranged, so that the negative pressure region can move downwards, the smoothness of smoke exhaust is ensured, the smoke exhaust efficiency is improved, the smoke leakage phenomenon caused by sudden increase of smoke is reduced, the requirement on a motor is reduced while the air quantity is improved, the noise problem caused by increasing the air quantity by increasing the power of the motor is solved, and the cooking experience is increased; the first baffle and the second baffle which can respectively perform telescopic motion on the front side and the rear side of the smoke collecting hood body are arranged, so that when the range hood body moves upwards, the first baffle and the second baffle can move towards the mutually away direction to increase the smoke collecting area, and when the range hood body moves downwards, the first baffle and the second baffle can move towards the mutually close direction to reduce the length of the smoke collecting hood assembly in the front and rear direction, so that the smoke collecting hood is prevented from blocking the sight of a user and avoiding the phenomenon of head collision; through setting up distance sensor to can detect out the pan and the distance of collection petticoat pipe subassembly when collection smoke chamber goes up and down, when the distance is close the default, first motion is not descending the action, keeps at the minimum, prevents range hood body and pan bump, and distance sensor can also detect people's height simultaneously, controls the outside displacement of first baffle, guarantees that the user's sight is not sheltered from, has also avoided the emergence of meeting the head phenomenon.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 2 is a sectional view of the range hood according to the embodiment of the present invention;

FIG. 3 is an enlarged view of portion I of FIG. 2;

fig. 4 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 5 is a schematic view of a part of components of the range hood according to the embodiment of the present invention;

fig. 6 is a schematic view of a part of components of the range hood according to the embodiment of the present invention;

fig. 7 is a bottom schematic view of the range hood according to the embodiment of the present invention;

fig. 8 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 9 is a cross-sectional view of a second linear driving module of the range hood according to the embodiment of the present invention;

fig. 10 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 11 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 12 is a schematic view of a part of components of the range hood according to the embodiment of the present invention;

fig. 13 is a bottom schematic view of the range hood according to the embodiment of the present invention;

fig. 14 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 15 is an exploded view of a smoke collection hood assembly of a range hood according to an embodiment of the present invention;

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 2, 4 and 10 to 11, a range hood includes a range hood body 1 connected to an external mounting base and capable of moving longitudinally relative to the external mounting base. The range hood body 1 comprises a fan frame 11, a fan system 12 arranged in the fan frame 11 and a smoke collecting hood assembly 13 arranged below the fan frame 11. The fume collecting hood assembly 13 includes a fume collecting hood body 131, the fume collecting hood body 131 includes a fume collecting cavity 1312 recessed upward from the bottom, and an air inlet 1311 communicated with the fan system 12 is opened at the top of the fume collecting cavity 1312. Fan system 12 includes a volute 121.

The range hood further comprises a fan outer cover 2 which is sleeved on the outer side of the fan frame 11, the fan outer cover 2 forms the external installation foundation, and the fan outer cover 2 can be fixedly connected with a wall, a suspended ceiling and the like.

Referring to fig. 7 to 8 and 13 to 15, the range hood further includes a first baffle 132 and a second baffle 133. The first baffle 132 is movable from the front side of the fume collecting cover body 131 to the inside direction of the fume collecting cover body 131 to be at least partially located inside the fume collecting cover body 131 or protruded from the inside of the fume collecting cover body 131 to the front side direction of the fume collecting cover body 131. The second baffle 133 is movable from the rear side of the fume collecting cover body 131 toward the inside of the fume collecting cover body 131 to be at least partially located inside the fume collecting cover body 131 or projected from the inside of the fume collecting cover body 131 toward the rear side of the fume collecting cover body 131.

The fume collecting cover body 131 is hollow, and both the front side and the rear side of the fume collecting cover body 131 are open. The first baffle 132 is installed inside the hood body 131 through an opening at a front side of the hood body 131, and when the first baffle 132 moves in a rear direction, the first baffle 132 may be partially or entirely received inside the hood body 131. The second barrier 133 is installed inside the hood body 131 through an opening at the rear side of the hood body 131, and when the second barrier 133 moves toward the front, the second barrier 133 may be partially or entirely received inside the hood body 131.

Referring to fig. 2 to 9 and 11 to 14, the range hood includes a first movement mechanism 4 for driving the range hood body 1 to move longitudinally, and a second movement mechanism 5 for driving the first baffle 132 and the second baffle 133 to move in the front-back direction.

The first movement mechanism 4 comprises a first linear driving module 41 arranged on the inner wall of the rear side of the fan housing 2 and a connecting bracket 42 driven by the first linear driving module 41.

The first linear driving module 41 includes a first base 411 disposed longitudinally, a first lead screw 412 disposed along a length direction of the first base 411 and capable of rotating around its axis, a first slider 413 moving along the length direction of the first lead screw 412 by the rotation of the first lead screw 412, and a first motor 414 for driving the first lead screw 412 to rotate. The first base 411 is fixed to the blower housing 2, the first motor 414 may be fixed to the bottom of the first base 411, an output shaft of the first motor is upward and is directly or indirectly connected to the bottom end of the first lead screw 412, and the top end of the first lead screw 412 is rotatably connected to the first base 411. Alternatively, the first motor 414 may be directly fixed to the blower housing 2. The first linear driving module 41 further includes a first protection cover 415 covering the first base 411 for protecting and preventing oil from being attached to the first lead screw 412. A first sliding slot 416 is formed between the first protection cover 415 and the first base 411 for the first sliding block 413 to pass through and slide. The fan frame 11 is provided with an avoiding groove 111 matched with the first linear driving module 41, and the avoiding groove 111 is formed by the top of the rear side of the fan frame 11 sinking towards the inner side.

The connecting bracket 42 is disposed between the fan system 12 and the first linear driving module 41. The connecting bracket 42 includes a connecting bracket body 421 extending along the left and right directions of the fan frame 11 and connecting portions 422 respectively disposed at the left and right ends of the connecting bracket body 421, and the connecting portions 422 are directly or indirectly connected to the inner walls of the left and right sides of the fan frame 11. In this embodiment, the connection portion 422 is connected to the inner walls of the left and right sides of the fan frame 11 through the spacers 15. One side of the connecting bracket body 421 close to the first linear driving module 41 is connected to the first slider 413, and one side of the connecting bracket body 421 close to the fan system 12 is directly or indirectly connected to the rear side of the volute 121. In this embodiment, the side of the connecting bracket body 421 close to the fan system 12 is connected to the rear side of the volute 121 by the volute bracket 14.

The second moving mechanism 5 includes at least two second linear driving modules 51 respectively corresponding to the first baffle 132 and the second baffle 133, and each second linear driving module 51 is disposed inside the fan frame 11. Each second linear driving module 51 includes a second base 511 transversely disposed along the front-rear direction, a second screw 512 disposed along the length direction of the second base 511 and capable of rotating around its axis, a second slider 513 moving along the length direction of the second screw 512 by the rotation of the second screw 512, and a second motor 514 for driving the second screw 512 to rotate, wherein each second slider 513 is connected to the corresponding first baffle 132 and second baffle 133. The second base 511 is fixed to the fan frame 11, the second motor 514 may be fixed to the rear end of the second base 511, the output shaft of the second motor is forward, and is directly or indirectly connected to the rear end of the second screw 512, and the front end of the second screw 512 is rotatably connected to the second base 511. Alternatively, the second motor 514 may be directly fixed to the fan frame 11. The second linear driving module 51 further includes a second protecting cover 515 covering the second base 511 for protecting and preventing oil stains from being attached to the second screw 512. A second sliding groove 516 is formed between the second protection cover 515 and the second base 511 for the second sliding block 513 to pass through and slide.

Referring to fig. 8 and 14 to 15, a first recess 1321 is formed at the top of the first baffle 132, and a first baffle bracket 1322 extending downward is provided on the first baffle 132 at both left and right sides of the first recess 1321. A second groove 1331 recessed from the front side to the rear side is formed at the top of the second barrier 133, and second barrier brackets 1332 extending downward are disposed on the second barrier 133 and at the left and right sides of the second groove 1331. The number of the second linear driving modules 51 in this embodiment is two, and the two second linear driving modules are respectively disposed on the inner walls of the left and right sides of the fan frame 11. The second slider 513 of the second linear driving module 51 positioned at the left side is connected to the first barrier support 1322 at the corresponding side. The second slider 513 of the second linear driving module 51 positioned at the right side is connected to the second shutter bracket 1332 at the corresponding side. Further, a second linear driving module 51 may be additionally provided on each of the first barrier support 1322 located at the right side of the first recess 1321 and the second barrier support 1332 located at the left side of the second recess 1331.

When the range hood is used, the fan system 12 is driven to move up and down through the first moving mechanism 4 according to the concentration of oil smoke which is not used, and meanwhile, the first baffle 132 and the second baffle 133 of the range hood are linked with each other through the second moving mechanism 5 along with the movement of the fan system 12, so that the distance between the fan system 12 and an oil smoke generating position is ensured, and the conversion between the traditional European range hood and the island range hood is realized. The conversion of island formula range hood and european style range hood can change range hood's holistic thickness, can adjust range hood's height and thickness according to customer's hobby, height, avoids the client to have the danger of bumping the head.

When the fan system 12 moves upward, the first baffle 132 and the second baffle 133 move in the direction away from each other, increasing the area for collecting the smoke; when fan system 12 moves down, first baffle 132 and second baffle 133 move towards the direction of being close to each other, fan system 12 is more close to the emergence department of oil smoke for the negative pressure zone moves down, guarantee the smooth and easy of discharging fume, oil absorption cigarette efficiency has been improved, the oil smoke running phenomenon that leads to when having reduced the oil smoke increase suddenly, when improving the amount of wind, the requirement to the motor has been reduced, the noise problem that arouses has been solved through increasing the motor power and increasing the amount of wind, cooking experience has been increased. The linkage of the first baffle 132 and the second baffle 133 with the fan system 12 ensures that the range hood will not obstruct the view due to the descending of the smoke collecting hood assembly 13 during the use process.

The range hood further comprises a distance sensor 3 which is arranged on the fume collecting hood body 131 and used for detecting the distance between the fume collecting hood assembly 13 and a cooker and detecting the height of a user. The distance sensor 3 is disposed at the top of the smoke collection chamber 1312 and at the periphery of the air inlet 1311. The distance sensor 3 detects the distance between the cooker and the smoke collecting cover assembly 13 when the smoke collecting cavity 1312 is lifted, and when the distance is close to a preset value, the first motion mechanism 4 does not descend any more and keeps at the lowest point, so that the collision between the range hood body 1 and the cooker is prevented. Meanwhile, the distance sensor 3 can detect the height of a person, and controls the outward movement distance of the first baffle 132, so that the sight of the user is not blocked, and the head collision is avoided.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (10)

1. The utility model provides a range hood, includes range hood body (1) that can be connected with outside installation basis, range hood body (1) includes fan frame (11), sets up fan system (12) in fan frame (11) and sets up collection petticoat pipe subassembly (13) in fan frame (11) below, collection petticoat pipe subassembly (13) is including collection petticoat pipe body (131), set up air intake (1311) with fan system (12) fluid intercommunication on collection petticoat pipe body (131), its characterized in that: the range hood body (1) can be relative outside installation basis longitudinal movement, collection petticoat pipe subassembly (13) still include first baffle (132) and second baffle (133), first baffle (132) can be moved and at least partly be located the inboard of collection petticoat pipe body (131) or stretch out to the front side direction of collection petticoat pipe body (131) by the inboard direction of collection petticoat pipe body (131), second baffle (133) can be moved and at least partly be located the inboard of collection petticoat pipe body (131) or stretch out to the rear side direction of collection petticoat pipe body (131) by the inboard of collection petticoat pipe body (131).

2. The range hood of claim 1, wherein: the range hood comprises a first movement mechanism (4) for driving the range hood body (1) to move longitudinally and a second movement mechanism (5) for driving the first baffle (132) and the second baffle (133) to move along the front-back direction.

3. The range hood of claim 2, wherein: the first movement mechanism (4) comprises a first linear driving module (41) arranged on an external installation base and a connecting support (42) driven by the first linear driving module (41), the first linear driving module (41) comprises a first longitudinal screw rod (412) capable of rotating around the axis of the first linear driving module, a first sliding block (413) moving along the length direction of the first screw rod (412) through the rotation of the first screw rod (412) and a first motor (414) used for driving the first screw rod (412) to rotate, the connecting support (42) is respectively connected with the first sliding block (413), the fan frame (11) and the fan system (12), and an avoiding groove (111) matched with the first linear driving module (41) is formed in the fan frame (11).

4. The range hood of claim 3, wherein: linking bridge (42) set up between fan system (12) and first linear drive module (41), linking bridge (42) include along linking bridge body (421) that fan frame (11) left and right sides orientation extended and set up respectively at linking bridge body (421) about the connecting portion (422) at both ends, connecting portion (422) are connected with the inner wall that the fan frame (11) left and right sides corresponds the side directly or indirectly, one side that linking bridge body (421) are close to first linear drive module (41) is connected with first slider (413), fan system (12) include spiral case (121), one side that linking bridge body (421) are close to fan system (12) is connected with the rear side direct or indirect of spiral case (121).

5. The range hood of claim 2, wherein: the second movement mechanism (5) comprises at least two second linear driving modules (51) which are respectively arranged corresponding to the first baffle (132) and the second baffle (133), each second linear driving module (51) is arranged on the inner side of the fan frame (11), each second linear driving module (51) comprises a second screw rod (512) which is transversely arranged along the front-back direction and can rotate around the axis of the second screw rod, a second sliding block (513) which moves along the length direction of the second screw rod (512) through the rotation of the second screw rod (512) and a second motor (514) which is used for driving the second screw rod (512) to rotate, and each second sliding block (513) is respectively connected with the corresponding first baffle (132) and the corresponding second baffle (133).

6. The range hood of claim 5, wherein: the exhaust fume collecting hood is characterized in that the exhaust fume collecting hood body (131) is hollow, the front side and the rear side of the exhaust fume collecting hood body (131) are both provided with openings, the first baffle (132) is arranged on the inner side of the exhaust fume collecting hood body (131) through the opening on the front side of the exhaust fume collecting hood body (131), the second baffle (133) is arranged on the inner side of the exhaust fume collecting hood body (131) through the opening on the rear side of the exhaust fume collecting hood body (131), a first groove (1321) which is sunken from the rear side to the front side is formed at the top of the first baffle (132), a first baffle bracket (1322) which is extended from the lower side is arranged at least one side of the left side and the right side of the first groove (1321) on the first baffle (132), a second groove (1331) which is sunken from the front side to the rear side is formed at the top of the second baffle (133), and a second baffle bracket (1332) which is extended downwards is arranged at least one side of the left side and the right side of the second groove (1331) on the second baffle (133), the first baffle plate bracket (1322) and the second baffle plate bracket (1332) are respectively connected with the second sliding block (513) of the corresponding second linear driving module (51).

7. The range hood according to any one of claims 1 to 6, wherein: range hood still including set up be used for detecting the distance between collection petticoat pipe subassembly (13) and the pan on collection petticoat pipe body (131) and be used for detecting distance sensor (3) of user's height.

8. The range hood of claim 7, wherein: the fume collecting cover body (131) comprises a fume collecting cavity (1312) formed by the fact that the bottom of the fume collecting cavity is sunken upwards, the air inlet (1311) is formed in the top of the fume collecting cavity (1312), and the distance sensor (3) is arranged on the top of the fume collecting cavity (1312) and the periphery of the air inlet (1311).

9. The range hood according to any one of claims 1 to 6, wherein: when the range hood body (1) descends, the first baffle (132) and the second baffle (133) are close to each other, and when the range hood body (1) ascends, the first baffle (132) and the second baffle (133) are far away from each other.

10. The range hood according to any one of claims 1 to 6, wherein: the range hood further comprises a fan outer cover (2) sleeved on the outer side of the fan frame (11), and the fan outer cover (2) forms the external installation foundation.

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