CN218469144U

CN218469144U - Movable part lifting mechanism of range hood and range hood

Info

Publication number: CN218469144U
Application number: CN202222481675.5U
Authority: CN
Inventors: 施明芳
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-02-10
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a range hood's movable part elevating system and range hood, range hood's movable part elevating system includes movable part and the elevating system who is used for driving movable part to go up and down, elevating system includes actuating mechanism and drive mechanism, actuating mechanism and drive mechanism constitute the linear drive module, the linear drive module has two synchronous at least outputs, the output is connected in the both sides that the movable part is relative at least. Compared with the prior art, the utility model has the advantages of: through connecting the output in the both sides that the movable part is relative, need not the guide rail just can improve movable part lift stability, and the synchronism of output can ensure movable part's lift synchronism.

Description

Movable part lifting mechanism of range hood and range hood

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood's movable part elevating system to and applied range hood that has this elevating system.

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, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

The existing range hood is usually provided with movable components needing to be lifted, such as a smoke guide plate, an air inlet box body and the like, and a movement mechanism is required to drive the movable components. The movable part lifting mechanism of the range hood disclosed in the prior Chinese patent with the application number of 201611244546.7 of the applicant comprises a mounting frame, a movable part, a motor, a transmission mechanism, lifting rods, connecting pieces and guide rails, wherein the transmission mechanism is mounted on the mounting frame and driven by the motor, at least two lifting rods are arranged on two sides of the mounting frame, the lower ends of the lifting rods are connected to the movable part, the connecting pieces are connected between the lifting rods and the transmission mechanism, at least two guide rails are respectively mounted on two sides of the mounting frame, and the transmission mechanism drives the connecting pieces to do lifting motion along the guide rails, so that the lifting rods and the movable part do synchronous lifting motion.

The motion mechanism adopts the linear driving module and the guide rail to control the lifting motion in a matching way, and is actually the motion of a point (the output end of the linear driving module) pulling surface (a connecting piece in a U-shaped connecting plate form). Such a movement mechanism has the following disadvantages: 1. the surface is driven by a point, and the stability can be ensured only by depending on a guide rail; 2. when the guide rail resistances of the left and right sides are inconsistent, the screen is easy to deflect, and the synchronism is slightly poor. Thus, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is not enough according to above-mentioned prior art existence, provides a range hood's movable part elevating system, improves the synchronism and the stability that the movable part goes up and down.

The utility model aims to solve the second technical problem that a use range hood that has above-mentioned elevating system is provided.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a range hood's movable part elevating system, includes movable part and the elevating system who is used for driving movable part to go up and down, elevating system includes actuating mechanism and drive mechanism, actuating mechanism and drive mechanism constitute sharp drive module, its characterized in that: the linear driving module is provided with at least two synchronous output ends, and the output ends are at least connected to two opposite sides of the movable part.

Through connecting the output in the both sides that the movable part is relative, need not the guide rail just can improve movable part lift stability, and the synchronism of output can ensure movable part's lift synchronism.

Preferably, the transmission mechanism comprises a bevel gear pair, a screw rod and a nut, the bevel gear pair comprises a first bevel gear and a second bevel gear, the first bevel gear is coaxially arranged and driven by the driving mechanism to rotate, the second bevel gear is meshed with the first bevel gear, the screw rod and the second bevel gear are coaxially arranged and synchronously rotate, the nut is sleeved on the screw rod and is in threaded connection with the screw rod, and the nut is connected with the movable part as the output end of the linear driving module.

Further, in order to synchronously drive the bevel gear pair, the transmission mechanism further comprises a synchronous shaft driven to rotate by the driving mechanism, and the first bevel gear is arranged on the synchronous shaft and rotates synchronously with the synchronous shaft.

The utility model provides a technical scheme that above-mentioned second technical problem adopted is: a range hood, its characterized in that: the movable part lifting mechanism of the range hood is applied.

Preferably, the movable part is a control screen. The lifting of the screen is controlled, so that the screen can be adapted to users with different heights, and the convenience in screen operation is improved.

Furthermore, the range hood comprises a fan frame, the control screen is lifted relative to the fan frame, and the output end of the lifting mechanism is connected to the left side and the right side of the control screen. Because the control screen is arranged relative to the fan frame instead of a panel and the like, the control screen is in a state of being far away from an oil smoke area when not used, thereby avoiding the problem of being polluted by oil stains; when the screen needs to be controlled, the screen is lowered to the position below the front side of the fan frame through the lifting device, so that the screen can be ensured to be positioned right in front of or above a user, and the control of the user is facilitated.

Further, range hood still includes the fan dustcoat, the fan dustcoat sets up the periphery at the fan frame, control the screen and can accomodate in the space between the front side of fan frame and fan dustcoat. Through will controlling the screen pertinence and set up in the space between fan frame and fan guard, the purpose utilizes existing/conventional structure of cigarette machine fan system, do not increase additional structure and cost, under the prerequisite of reduction space occupancy, realize controlling hiding of screen, avoid exposing under high temperature oil smoke environment for a long time under the out of work 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.

The range hood is characterized in that the range hood is further provided with a mounting plate arranged at the bottom of the fan housing, and a yielding hole for the passing of the control screen is formed in the mounting plate.

In order to prevent the lifting mechanism from being exposed downwards, a connecting plate is arranged above the control screen, and the output end of the lifting mechanism is connected with the control screen through the connecting plate.

Compared with the prior art, the utility model has the advantages of: through connecting the output in the both sides that the movable part is relative, need not the guide rail just can improve movable part lift stability, and the synchronism of output can ensure movable part's lift synchronism.

Drawings

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

fig. 2 is a schematic view of a closed state 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 showing the fan housing hidden in the closed state;

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

fig. 5 is a schematic view of the lifting mechanism of the range hood according to the embodiment of the present invention.

Detailed Description

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", 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 3, 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 of 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 screen 4 and set up on the fan module, set up relatively fan module liftable ground, fall to at least part when needing to use and be located fan module below, 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 from will controlling screen 4 and set up in the runner or the region that the oil smoke passed through, and receive the influence of oil smoke from this. In this embodiment, certain interval has between the front side of fan frame 1 and the front side of fan dustcoat 2, control in the space that screen 4 and its motion can accomodate this interval and form, utilize existing/conventional structure of range hood fan module promptly, under the prerequisite that does not increase additional structure and cost, reduction 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 decline under being in the oil smoke environment for a long time when improving operation convenience. When the range hood is opened to enter a use state, the smoke baffle plate 8 on the front side of the air inlet component 3 is opened so that oil smoke enters the air inlet component 3, and a circular suction air inlet mode or other normally open air inlet modes can be adopted.

Referring to fig. 3 to 5, the range hood further includes a lifting mechanism for driving the control screen 4 to lift, including a driving mechanism 51 and a transmission mechanism, to form a linear driving module. The front side of the fan frame 1 is provided with a fixing plate 11 for arranging a lifting mechanism. The drive mechanism 51 is preferably a motor, and in the mounted state, its output shaft extends in the vertical direction. The transmission mechanism comprises a synchronizing shaft 521, two bevel gear pairs 522, a screw rod 523 and a nut 524. The synchronizing shaft 521 extends in a direction perpendicular to the output shaft of the drive mechanism 51, and extends in the left-right direction in the mounted state. The synchronizing shaft 521 is directly or indirectly driven to rotate by the drive mechanism 51. The bevel gear pair 522 includes a first bevel gear 5221 and a second bevel gear 5222 which are engaged with each other, wherein the first bevel gear 5221 is sleeved on the synchronizing shaft 521 and rotates synchronously. The screw 523 extends in a direction parallel to the output shaft of the drive mechanism 51, and in the mounted state, extends in a vertical direction. The second bevel gear 5222 is sleeved on the screw 523 (connected to the non-threaded portion of the screw 523) and rotates synchronously. The nut 524 is sleeved on the screw rod 523 and is in threaded connection with the screw rod 523. The number of the lead screws 523 is the same as that of the bevel gear pairs 522, and the lead screws 523 are rotatably supported on the fixed plate 11. The nuts 524, as the output ends of the lifting mechanism, have at least two, and are at least connected to the two opposite sides of the control screen 4, respectively, and in the installation state, are connected to the left and right sides of the control screen 4 to drive the control screen 4 to lift. The connection plate 41 may be provided on the control screen 4, the nut 524 may be connected to the control screen 4 by being connected to the connection plate 41, and the connection plate 41 may be located above the control screen 4 to prevent the lifting mechanism from being exposed below the below-described mounting plate 6, as long as the lifting mechanism is installed between the blower housing 1 and the blower housing 2.

The synchronous shaft 521 and the motor can be replaced by a double-output shaft motor; or a plurality of groups of bevel gear pairs can be arranged and simultaneously matched with a plurality of groups of screw rod nuts and the like for substitution; or a plurality of groups of bevel gear pairs are arranged, and the output end of the lifting mechanism is replaced by a rack and the like by utilizing the matching of the gear and the rack; alternatively, a synchronous shaft may be used to drive a linkage mechanism to achieve linear motion output, as disclosed in the prior patent applications 202110740720.1, 202121480895.5, etc. of the present applicant; or a worm gear can be used for replacing a bevel gear pair to realize reversing.

The range hood also comprises a mounting plate 6 which is arranged below the fan frame 1 and extends forwards from the position of the air inlet component 3 close to the upper end part, and a sound box 7 can be arranged on the mounting plate 6 so as to play the sound matched with the control screen 4. 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, thereby closing the bottom of the space between the blower housing 11 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 control screen 4 adaptation to pass through when can supplying to control screen 4 and go up and down.

Referring to fig. 2 and 3, 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 receding hole 61 or flush with the upper edge of the receding hole 61 to close the receding hole 61, so as to completely isolate the oil smoke. Referring to fig. 1, when the range hood is opened, the control screen 4 is exposed downward below the mounting plate 6 for user operation.

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.

Obviously, the lifting mechanism of the utility model can also be used for other movable parts of the range hood which need to be lifted, such as a smoke guide plate, an air inlet box body and the like.

Claims

1. The utility model provides a range hood's movable part elevating system, includes movable part and is used for driving the elevating system that movable part goes up and down, elevating system includes actuating mechanism (51) and drive mechanism, actuating mechanism (51) and drive mechanism constitute sharp drive module, its characterized in that: the linear driving module is provided with at least two synchronous output ends, and the output ends are at least connected to two opposite sides of the movable part.

2. The movable member elevating mechanism of range hood according to claim 1, characterized in that: the transmission mechanism comprises a bevel gear pair (522), a screw rod (523) and a nut (524), the bevel gear pair (522) comprises a first bevel gear (5221) which is coaxially arranged and driven to rotate by a driving mechanism (51) and a second bevel gear (5222) meshed with the first bevel gear (5221), the screw rod (523) and the second bevel gear (5222) are coaxially arranged and synchronously rotate, the nut (524) is sleeved on the screw rod (523) and is in threaded connection with the screw rod (523), and the nut (524) serves as an output end of a linear driving module and is connected with a movable component.

3. The moving member elevating mechanism of a range hood according to claim 2, wherein: the transmission mechanism further comprises a synchronizing shaft (521) driven to rotate by the driving mechanism (51), and the first bevel gear (5221) is arranged on the synchronizing shaft (521) and rotates synchronously with the synchronizing shaft (521).

4. A range hood, its characterized in that: the movable part lifting mechanism of the range hood as claimed in any one of claims 1 to 3.

5. The range hood of claim 4, wherein: the movable part is a control screen (4).

6. The range hood of claim 5, wherein: the range hood comprises a fan frame (1), the control screen (4) is lifted relative to the fan frame (1), and the output end of the lifting mechanism is connected to the left side and the right side of the control screen (4).

7. The range hood of claim 6, wherein: the range hood further comprises a fan outer cover (2), the fan outer cover (2) is arranged on the periphery of the fan frame (1), and the control screen (4) can be stored in a space between the fan frame (1) and the front side of the fan outer cover (2).

8. The range hood of claim 7, wherein: the range hood further comprises a mounting plate (6) arranged at the bottom of the fan outer cover (2), and a yielding hole (61) for the control screen (4) to pass through is formed in the mounting plate (6).

9. The range hood of claim 8, wherein: a connecting plate (41) is arranged above the control screen (4), and the output end of the lifting mechanism is connected with the connecting plate (41) to realize the connection with the control screen (4).