CN218295873U - Cooking fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, including fan module and the control screen of setting in the fan module, it includes the screen main part to control the screen, its characterized in that: the range hood also comprises a movement mechanism for driving the screen main body to lift and rotate relative to the fan module, so that the screen main body can at least partially descend below the fan module and can rotate relative to the fan module after descending. Compared with the prior art, the utility model has the advantages of: liftable and pivoted control the screen through setting up fan module relatively, can adapt the not operation demand of co-altitude and sight angle to improve the operation convenience and keep away from the oil smoke environment.

Description

Cooking fume exhauster

Technical Field

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

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, and is accelerated by the fan, collected by the volute and guided to be discharged outdoors.

The actual operating environment of the range hood in the current market uses a traditional control mode, and a screen and the range hood cannot be fused. For example, the intelligent screen range hood disclosed in the chinese patent with the application number of 201911286720.8. The intelligent screen range hood comprises a range hood body, an intelligent screen arranged on the range hood body, a controller, a communication module and an audio output module.

According to the range hood in the prior art, the position and the angle of the screen depend on the panel of the range hood, so that the range hood is too inclined or too high, is inconvenient to operate, cannot be matched with the sight directions of different people with different heights, and causes poor user experience; in addition, the existing screen is exposed in an oil smoke environment no matter in a working state or a non-working state, the screen is polluted by oil smoke for a long time, so that the surface of the screen is greasy, and display or touch is affected, and the oil smoke is usually high in temperature, so that the service life of the screen is affected when the screen is in a high-temperature environment for a long time; even some prior art have also adopted some hidden schemes to prevent that the screen from revealing under the oil smoke environment, for example, set up solitary protective housing or whole elevating gear for the screen is extra sets up special protective housing, however, above-mentioned setting can lead to holistic structure complicacy, space occupancy height, cost rising to the structure of increase can lead to the later stage maintenance rate height.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art exists, the utility model aims to solve the first technical problem that a range hood is provided, make the screen keep away from the oil smoke region under unoperated state when it can improve screen operation convenience, avoid the screen to be infected with by the greasy dirt, influence the life-span.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a range hood, includes fan module and sets up the control screen in the fan module, control the screen and include the screen main part, its characterized in that: the range hood also comprises a movement mechanism for driving the screen main body to lift and rotate relative to the fan module, so that the screen main body can at least partially descend below the fan module and can rotate relative to the fan module after descending. The control screen is arranged relative to the fan module instead of the panel and the like, so that the control screen is in a state of being far away from an oil smoke area when not in use, and the problem of being polluted by oil stains is avoided; and when the screen is controlled in needs use, make the screen descend to fan module below position through elevating gear, so, can ensure that the screen is located user's dead ahead or upper position, the relative fan module's of rethread rotation this moment can be equipped with the sight direction of the different heights of different crowds, user's of being convenient for control.

In order to facilitate the rotation of the screen main body, the movement mechanism comprises a driving mechanism for driving the control screen to lift, the driving mechanism is a linear driving module, and a universal rotating mechanism is arranged between the output end of the driving mechanism and the screen main body.

In order to facilitate the connection between the screen main bodies of the driving mechanism and reduce the lifting stroke of the screen main bodies, the control screen further comprises a shell positioned above the screen main bodies, the shell is directly or indirectly fixedly connected with the output ends of the driving mechanism, and the universal rotating mechanism is connected between the shell and the screen main bodies.

Preferably, universal rotary mechanism includes last fixed bolster, horizontal rotation support, first runner assembly, lower fixed bolster and second runner assembly, it is fixed with the casing to go up the fixed bolster, lower fixed bolster is fixed with the screen main part, horizontal rotation support passes through first runner assembly with last fixed bolster and rotates and be connected, lower fixed bolster passes through second runner assembly with horizontal rotation support and rotates and be connected, makes one of horizontal rotation support and lower fixed bolster rotates around vertical axis, another one of horizontal rotation support and lower fixed bolster rotates around horizontal axis, realizes the rotation of screen main part arbitrary direction from this.

In order to control the rotating force of the screen main body conveniently, the first rotating assembly and the second rotating assembly are identical in structure and respectively comprise a bolt, a spring and a nut, the spring is sleeved on the bolt, the nut is screwed on the bolt, the bolt of the first rotating assembly vertically penetrates through the upper fixing support and the horizontal rotating support, and the spring of the first rotating assembly abuts against the corresponding nut and the upper fixing support, so that the horizontal rotating support can rotate around a vertical axis relative to the upper fixing support; the bolt of the second rotating assembly horizontally penetrates through the horizontal rotating bracket and the lower fixing bracket, and the spring of the second rotating assembly abuts between the corresponding nut and the horizontal rotating bracket, so that the lower fixing bracket can rotate around a horizontal axis relative to the horizontal rotating bracket.

Furthermore, because the range hood can not completely realize the suction of the oil smoke, part of escaping oil smoke is inevitably generated, the part of escaping oil smoke can rise to the area of the fan module, the control screen can still inevitably contact the oil smoke, and the risk of oil stain contamination and service life reduction of the control screen can be inevitably generated after long-term contact. Therefore, the second technical problem to be solved by the present invention is how to solve the above problems in a manner of low cost, low space occupation, and simple structure design.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the fan module is including the fan frame that is used for setting up the fan system and set up the fan dustcoat in fan frame periphery, control the space that the screen can be accomodate between the front side of fan frame and fan dustcoat. Through controlling the screen and pertinence setting up in the space between fan frame and fan cover, the purpose utilizes the existing/conventional structure of range hood's fan module, do not increase additional structure and cost, reduce under the prerequisite of space occupancy, realize controlling hiding of screen, avoid exposing under high temperature oil smoke environment for a long time under out of operation state, thereby further realized with oil smoke environment or kitchen high temperature environment effectively isolated, the probability of controlling the screen and being infected with by the greasy dirt has been reduced, high temperature direct contact has been avoided, and the service life is prolonged.

Preferably, for further closed control the hidden closure of screen non-operating condition, further avoid the greasy dirt to be infected with, range hood still includes the mounting panel, the bottom in the below of fan frame in order to seal the space between the front side of fan frame and fan dustcoat is installed to the mounting panel, the hole of stepping down that passes through when supplying to control the screen lift is seted up to the position that the mounting panel is close to the front side tip, the shape and the size in hole of stepping down all with control the screen adaptation.

Interfere with the mounting panel when avoiding controlling the screen to rise, control the screen still including the casing that is located screen main part top, be provided with universal rotary mechanism between casing and the screen main part, range hood still includes infrared induction device, infrared induction device is including setting up infrared transmitter on casing and one of them of screen main part and setting up the infrared receiver on casing and another of screen main part.

Compared with the prior art, the utility model has the advantages of: the liftable and rotatable control screen is arranged relative to the fan module, so that the operation requirements of different heights and sight angles can be adapted, the operation convenience is improved, and the screen is prevented from being contaminated by oil stains and being shortened in service life when being in an oil smoke environment for a long time; the control screen is arranged in a space between the fan frame and the fan cover in a targeted manner, and the control screen is hidden under the premise of not increasing additional structures and cost and reducing space occupancy rate by utilizing the existing/conventional structure of the fan module of the range hood, so that the operation convenience is improved, and the screen is prevented from being polluted by oil stains and the service life is shortened when the screen is in an oil smoke environment for a long time; through setting up infrared induction device, can avoid controlling the screen and interfering with other parts when rising, avoid controlling the screen damage.

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 a schematic view of the range hood according to the embodiment of the present invention with the hidden fan housing in use;

fig. 4 is a schematic view of a control screen and a movement mechanism thereof of the range hood according to the embodiment of the present invention;

fig. 5 is an exploded schematic view of the control screen and the moving mechanism thereof of the range hood according to the embodiment of the present invention;

fig. 6 is an exploded schematic view of the control screen and the housing of the range hood according to the embodiment of the present invention;

fig. 7 is a schematic view of a control screen and a hidden portion of a housing of a range hood according to an embodiment of the present invention;

fig. 8 is a schematic view of the universal rotating mechanism of the control screen of the range hood according to the embodiment of the present invention;

FIG. 9 is an exploded view of the gimbal mechanism of FIG. 8;

fig. 10 is a sectional view of the control screen, the universal rotating mechanism and the casing of the range hood according to the embodiment of the present invention;

fig. 11 is a schematic view of the control screen of the extractor hood of fig. 1 rotated by any angle around a vertical axis;

fig. 12 is a schematic view of the control screen of the range hood of fig. 1 after rotating around a horizontal axis by any angle;

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

fig. 14 is a schematic view of the range hood according to the embodiment of the present invention showing the fan housing hidden in the closed state.

Detailed Description

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

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", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent 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 5, a range hood includes a fan frame 1 for installing a fan system (not marked on the drawings, but in the prior art), a fan housing 2 arranged at the periphery of the fan frame 1, and an air intake assembly 3 arranged below the fan frame 1, and may be a range hood in a top-suction type, a side-suction type, or other forms. The fan system, the fan frame 1 and the fan housing 2 jointly form a fan module, and the fan module is an existing/conventional structure of the range hood.

The range hood further comprises a control screen 4 for controlling the range hood, which is an intelligent screen, such as similar to an intelligent tablet. Control the screen 4 and set up on the fan module, set up with relative fan module liftable, fall to at least part and be located fan module below when needing to use, seek suitable high operation of being convenient for, then rise to the fan module when not needing (especially the front side of fan frame 1), can avoid controlling screen 4 and set up in the runner or the region that the oil smoke passed through from this, and receive the influence of oil smoke. In this embodiment, certain interval has between the front side of fan frame 1 and the front side of fan dustcoat 2, control in screen 4 and its motion can accomodate the space that this interval formed, utilize existing conventional structure of range hood fan module promptly, under the prerequisite that does not increase extra structure and cost, reduces space occupancy, realize controlling hiding of screen 4 to avoid the screen to lead to controlling screen 4 to be stained with by the greasy dirt and life-span to descend under being in the oil smoke environment for a long time when improving operation convenience. When the range hood is opened and enters a use state, a smoke baffle (not marked) on the front side of the air inlet component 3 is opened so that oil smoke enters the air inlet component 3, and the air inlet form of circular suction or other normally open air inlet forms can be adopted.

The range hood further comprises a movement mechanism for lifting and rotating the control screen 4, wherein the movement mechanism comprises a driving mechanism 51, a lifting fixing plate 52 and a guide mechanism 53. In this embodiment, the driving mechanism 51 includes a motor 511, a screw 512, and a nut 513, wherein the screw 512 extends in the vertical direction, the motor 511 can drive the screw 512 to rotate around its axis, and the nut 513 is screwed onto the screw 512 as the output end of the linear driving module, so as to move linearly in the vertical direction when the screw 512 rotates. The driving mechanism 51 may also adopt other existing structures, such as a combination of a motor, a gear and a rack, an electric push rod, and the like.

The elevation fixing plate 52 is fixed to the nut 513 so as to be elevated with the nut 513. The housing 42 is fixedly connected to the elevating fixing plate 52, and the screen body 41 is connected to a lower portion of the housing 42, so that the manipulation screen 4 can be elevated along with the elevating fixing plate 52. In order to prevent the entire control screen 4 from directly bearing the pulling and pressing force of the driving mechanism 51, the movement mechanism further includes an adapter 55 disposed on the output end side of the lifting fixing plate 52 facing the driving mechanism 51, and the adapter 55 is used for being fixed with the nut 513.

The moving mechanism further comprises guide mechanisms 53 arranged on the left side and the right side of the front side of the fan frame 1, and the lifting fixing plate 52 is connected with the fan frame 1 in a sliding mode through the guide mechanisms 53. The guide mechanism 53 is preferably a sliding fit slide rail assembly. The guide mechanisms 53 are two and arranged at an interval in the left-right direction. In this embodiment, the cross section of the lifting fixing plate 52 is U-shaped, the opening of the U-shape faces backward, and the two guide mechanisms 53 are fixed to the left and right sides of the lifting fixing plate 52, respectively.

The control screen 4 extends vertically, and when a user performs cooking operation, the user does not necessarily face the middle position of the range hood (usually, the control screen 4 is located at the middle position in the left-right direction of the range hood), and in addition, the control screen 4 needs to rotate around the axis in the horizontal direction so as to at least enable the screen main body 41 to incline relative to the vertical direction, so that the operation is facilitated. The "horizontal" and "vertical" described in this embodiment allow for some deviation, such as ± 5 ° or the like. Therefore, referring to fig. 6 to 9, a universal rotation mechanism 56 is provided between the screen main body 41 and the housing 42 so that the screen main body 41 can rotate about an axis in the vertical direction and an axis in the horizontal direction with respect to the universal rotation mechanism 56.

The housing 42 includes a first front case 421 and a first rear case 422 fastened to a rear side of the first front case 421, and the screen body 41 includes a second front case 411 and a second rear case 412 fastened to a rear side of the second housing 41. The part of the universal rotation mechanism 56 is located between the first front case 421 and the second rear case 542 (i.e., the inner side of the housing 42), and the part of the universal rotation mechanism 56 is also located between the second front case 411 and the second rear case 412.

The universal swivel mechanism 56 includes an upper stationary support 561, a horizontal swivel support 562, a first swivel assembly 563, a lower stationary support 564, and a second swivel assembly 565. The upper fixing bracket 561 may be fixed to the housing 42 by a fastener such as a screw, and a first through hole 5611 is formed in the upper fixing bracket 561 at a preferable middle position in the left-right direction. The horizontal rotating bracket 569 is disposed below the upper fixing bracket 561, and is provided with a second through hole 5621, the first through hole 5611 corresponds to the second through hole 5621, and the first rotating member 563 vertically passes through the first through hole 5611 of the upper fixing bracket 561 and the second through hole 5621 of the horizontal rotating bracket 562, so that the horizontal rotating bracket 562 can rotate around a vertical axis relative to the upper fixing bracket 561, and a specific rotation principle will be described in detail below. The horizontal rotation bracket 562 is further provided with third through holes 5622 located on the left and right sides of the second through hole 5621, and the horizontal rotation bracket 562 may be formed in a substantially U-shape with a lower opening. The lower fixing bracket 564 may be generally U-shaped with an open front, the lower fixing bracket 564 is located between two third through holes 5622, the lower fixing bracket 564 is provided with a fourth through hole 5641, the third through hole 5622 corresponds to the fourth through hole 5641, the number of the second rotating assemblies 565 is two, each of the second rotating assemblies 565 horizontally passes through the third through hole 5622 and the corresponding fourth through hole 5641, so that the lower fixing bracket 564 may rotate around a horizontal axis with respect to the horizontal rotating bracket 562, and the specific rotation principle will be described in detail below. The lower fixing bracket 564 is fixed to the screen main body 41 so that the screen main body 41 can rotate about a vertical axis and a horizontal axis with respect to the housing 42.

The first rotating assembly 563 and the second rotating assembly 565 have the same structure, and both include a bolt 5631, a spring 5632, and a nut 5633, wherein the spring 5632 is sleeved on the bolt 5631, and the nut 5633 is screwed on the bolt 5631. The bolt 5631 of the first rotating member 563 sequentially passes through the second through hole 5621 and the first through hole 5611 from bottom to top (the head of the bolt 5631 is located below the second through hole 5621), the nut 5633 is screwed to the bolt 5631 at a position above the first through hole 5611, the spring 5632 abuts against the nut 5633 and the upper fixing bracket 561 at a position around the first through hole 5611, and the bolt 5631 is fixed to the horizontal rotating bracket 562 and can rotate relative to the upper fixing bracket 561 (the arrangement of the control threads can be achieved). The bolt 5631 of the second rotating member 565 passes through the fourth through hole 5641 and the third through hole 5622 horizontally from the middle to the left or the right, the nut 5633 is screwed to the bolt 5631 at a position outside the third through hole 5622, the spring 5632 abuts against the nut 5633 and the horizontal rotating bracket 562 at a position around the third through hole 5622, and the bolt 5631 is fixed to the lower fixing bracket 564 to be rotatable relative to the horizontal rotating bracket 562 (the arrangement of the control thread is realized). The universal swivel mechanism 56 further includes spacers 566 provided on each bolt 5631 and located between the upper fixing bracket 561 and the horizontal swivel bracket 562, between the horizontal swivel bracket 562 and the lower fixing bracket 565, and at both ends of each spring 5632.

When assembling, after aligning the two through holes of the upper fixing bracket 561 and the horizontal rotation bracket 562, the two through holes penetrate the bolt 5631 of the first rotation assembly 563, and a gasket 566 is added between each bracket; then, the spring 5632 is assembled to the bolt 5631, the nut 5633 is locked after the spacer 566 is added to the end of the spring 5632, and the magnitude of the rotational force can be adjusted by adjusting the torque force applied to the spring 5632; the lower stationary support 564 and the second rotating assembly 565 are then assembled in a similar procedure as the horizontal rotating support 562 and the first rotating assembly 563.

Alternatively, the fourth through holes 5641 may be located on a side of each third through hole 5622 away from another third through hole 5622, and the position of the nut 5633 is changed accordingly and located between the two third through holes 5622.

When the above-mentioned universal rotation mechanism 56 is mounted to the housing 42 and the screen main body 41, first, the upper fixing bracket 561 of the universal rotation mechanism 56 and the first front case 421 of the housing 42 are fixed by a fastener such as a screw, and then, the second front case 411 of the screen main body 41 and the lower fixing bracket 564 of the universal rotation mechanism 56 are fixed by a fastener such as a screw. Then, the first rear case 422 and the first front case 421 are fixed, and the second rear case 412 and the second front case 411 are fixed.

In this embodiment, the magnitude of the rotational force is mainly achieved by the pressing force of the spring 5632. Furthermore, it can be realized by means of e.g. hydraulic damping means.

Referring to fig. 11, the screen body 41 is rotated by an arbitrary angle about the vertical axis, and referring to fig. 12, the screen body 41 is rotated by an arbitrary angle about the horizontal axis, and the rotation is performed by a manual operation. Alternatively, the spring may not be used, and the rotation may be driven by an electric means such as a motor. In addition, the universal rotation mechanism 56 may also take the form of other conventional universal joints. Alternatively or additionally, the universal rotation mechanism 56 may be disposed between the housing 42 and the lifting fixing plate 52, but this would increase the stroke of the control screen 4, and cause a certain degree of aesthetic appearance after being lowered.

Referring to fig. 2, 3 and 13, the range hood further includes a mounting plate 6, which is installed below the fan frame 1 and extends forward from the position of the air intake assembly 3 near the upper end, and a sound box can be installed on the mounting plate 6, so as to play the sound matched with the screen body 41. The front side of the mounting plate 6 extends forward beyond the front side of the blower housing 1, and the lower end of the front side of the blower housing 2 can be attached to the front side end of the mounting plate 6 to close the bottom of the space between the blower housing 1 and the front side of the blower housing 2. The mounting panel 6 has been seted up near the position of front end portion and has been stepped down hole 61, and the shape and the size of stepping down hole 61 all with screen main part 41 adaptation to pass through when can supplying screen main part 41 to go up and down.

Referring to fig. 13 and 14, when the range hood is closed or the control screen 4 is not needed, the control screen 4 can be lifted upwards and stored on the mounting plate 6, and at this time, the lower end part of the control screen 4 is preferably located in the abdicating hole 61 or flush with the upper edge of the abdicating hole 61 to block the abdicating hole 61, so as to completely isolate the oil smoke.

Furthermore, the utility model discloses a control 4 overall arrangement of screen outside the oil smoke runner, can not exert an influence to the performance of the fan system in the fan frame 1.

When the manipulation screen 4 is lowered, the housing 42 may not be lowered below the mounting plate 6. Referring to fig. 7 and 10, in order to prevent the screen body 41 from hitting the mounting plate 6 when the screen body 41 is lifted after the screen body 41 is rotated, in the present embodiment, an infrared sensing device 9 including an infrared transmitter 91 provided on one of the housing 42 and the screen body 41 and an infrared receiver 92 provided on the other of the housing 42 and the screen body 41 is provided between the housing 42 and the screen body 41. If the user sends the ascending instruction of the screen body 41, the screen body 41 rotates at an abnormal position (because the screen body 41 rotates relative to the housing 42, the infrared emitter 91 and the infrared receiver 92 are not aligned), the system sends out an abnormal position prompt to guide the user to restore the screen body 41 to a reasonable position (in the embodiment, the screen body extends vertically and extends left and right, and the screen body can have a slight inclination angle as long as the screen body is matched with the abdicating hole 61, and meanwhile, the screen body 41 is guaranteed to avoid interfering with the fan frame 1 and the fan housing 2 after ascending).

Alternatively, a gyroscope (not shown) may be provided on the screen body 41, and when the user issues an instruction to raise the screen body 41 and the system monitors abnormality of the gyroscope parameter, the system issues an alarm and prompts the user to rotate the screen body 41 to the vertical position.

Claims (8)

1. The utility model provides a range hood, includes fan module and sets up control screen (4) on the fan module, control screen (4) including screen main part (41), its characterized in that: the range hood also comprises a movement mechanism for driving the screen main body (41) to lift and rotate relative to the fan module, so that the screen main body (41) can at least partially descend below the fan module and can rotate relative to the fan module after descending.

2. The range hood of claim 1, wherein: the movement mechanism comprises a driving mechanism (51) for driving the control screen (4) to lift, the driving mechanism (51) is a linear driving module, and a universal rotating mechanism (56) is arranged between the output end of the driving mechanism (51) and the screen main body (41).

3. The range hood of claim 2, wherein: the control screen (4) further comprises a shell (42) positioned above the screen main body (41), the shell (42) is directly or indirectly fixedly connected with the output end of the driving mechanism (51), and the universal rotating mechanism (56) is connected between the shell (42) and the screen main body (41).

4. The range hood of claim 3, wherein: the universal rotating mechanism (56) comprises an upper fixing support (561), a horizontal rotating support (562), a first rotating assembly (563), a lower fixing support (564) and a second rotating assembly (565), the upper fixing support (561) is fixed with the shell (42), the lower fixing support (564) is fixed with the screen main body (41), the horizontal rotating support (562) is rotatably connected with the upper fixing support (561) through the first rotating assembly (563), the lower fixing support (564) is rotatably connected with the horizontal rotating support (562) through the second rotating assembly (565), one of the horizontal rotating support (562) and the lower fixing support (564) rotates around a vertical axis, and the other of the horizontal rotating support (562) and the lower fixing support (564) rotates around a horizontal axis.

5. The range hood of claim 4, wherein: the first rotating assembly (563) and the second rotating assembly (565) are identical in structure and respectively comprise a bolt (5631), a spring (5632) and a nut (5633), the spring (5632) is sleeved on the bolt (5631), the nut (5633) is screwed on the bolt (5631), the bolt (5631) of the first rotating assembly (563) vertically penetrates through the upper fixing support (561) and the horizontal rotating support (562), and the spring (5632) of the first rotating assembly (563) abuts between the corresponding nut (5633) and the upper fixing support (561) so that the horizontal rotating support (562) can rotate around a vertical axis relative to the upper fixing support (561); the bolt (5631) of the second rotary assembly (565) passes horizontally through the horizontal rotation bracket (562) and the lower fixed bracket (564), and the spring (5632) of the second rotary assembly (565) abuts between the corresponding nut (5633) and the horizontal rotation bracket (562) so that the lower fixed bracket (564) can rotate around a horizontal axis with respect to the horizontal rotation bracket (562).

6. The range hood of claim 1, wherein: the fan module comprises a fan frame (1) for setting a fan system and a fan outer cover (2) arranged on the periphery of the fan frame (1), and the control screen (4) can be stored in a space between the front sides of the fan frame (1) and the fan outer cover (2).

7. The range hood of claim 6, wherein: range hood still includes mounting panel (6), the bottom in the below of fan frame (1) is installed in order to seal the space between the front side of fan frame (1) and fan dustcoat (2) in mounting panel (6), hole of stepping down (61) that pass through when screen (4) go up and down is offered to the confession in the position that mounting panel (6) are close to the front side tip, the shape and the size of hole of stepping down (61) all with control screen (4) adaptation.

8. The range hood of claim 6 or 7, wherein: the control screen (4) further comprises a shell (42) located above the screen main body (41), a universal rotating mechanism (56) is arranged between the shell (42) and the screen main body (41), the range hood further comprises an infrared sensing device (9), and the infrared sensing device (9) comprises an infrared emitter (91) arranged on one of the shell (42) and the screen main body (41) and an infrared receiver (92) arranged on the other of the shell (42) and the screen main body (41).

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