CN220958597U - Lifting type range hood - Google Patents

Abstract

Under the drive of the driving mechanism, the middle box body moves up and down relative to the upper box body, the lower box body moves up and down relative to the middle box body, the driving mechanism comprises a first electric push rod for driving the middle box body to lift and a second electric push rod for driving the lower box body to lift, an output interface is installed at a power output end of the first electric push rod, the middle box body is fixedly connected to the output interface, the second electric push rod is arranged below the first electric push rod, and a shell and a power output end of the second electric push rod are connected between the middle box body and the lower box body. This lift range hood realizes the second grade lift of well box and lower box under the drive of dual drive structure, and the lift stroke is controllable, and speed is adjustable, and when well box and lower box rose to highest position in step, can realize beating with the cupboard and inlay flat effect, when descending, relies on the big stroke of two-stage drive to make the smoke suction inlet visit downwards, and the oil smoke sunction inlet is closer to the smoke source, can promote the oil smoke effect.

Description

Lifting type range hood

Technical Field

The utility model relates to the technical field of range hoods, in particular to a lifting range hood.

Background

The range hood is one of the indispensable devices in modern home kitchens, and as the application rate of the range hood is higher and higher, people pay more attention to the fume suction effect and the installation attractiveness of the range hood. The traditional top-draft type range hood is large in size, a cooking person can easily bump the head, if the distance between the air inlet of the range hood and a lampblack generating area is large, the suction path of lampblack is long, the suction time is increased, the lampblack escaping phenomenon is easy to occur in the cooking process, if the installation height of the range hood is reduced, the smoke inlet is as close to a smoke source as possible, the negative pressure is expanded downwards, the lampblack sucking effect is improved, the cooking space is too small, the head of the cooking person can inadvertently touch the smoke collecting hood easily, and the whole appearance of the sight and the kitchen is also influenced after the installation height is reduced. Therefore, people invent a lifting type range hood, namely, the smoke inlet can lift, the smoke inlet descends when the machine is started, and the smoke inlet ascends when the machine is shut down. The range hood comprises a fan frame, a first box body arranged below the rear side of the fan frame and communicated with the fan frame, and a second box body arranged on the first box body and capable of longitudinally moving relative to the first box body, wherein the second box body is communicated with the first box body, and the front side of the second box body is provided with an air inlet. The range hood is of a single-stage lifting structure, and the lifting mechanism of the range hood with a two-stage lifting structure needs to be further improved.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a lifting type range hood which is driven by an electric push rod to realize two-stage lifting aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a lifting type range hood, includes box, well box and lower box, under actuating mechanism's drive, well box can be for last box elevating movement, lower box can be for well box elevating movement, its characterized in that: the driving mechanism comprises a first electric push rod for driving the middle box body to lift and a second electric push rod for driving the lower box body to lift, wherein an output interface is arranged at the power output end of the first electric push rod, the middle box body is fixedly connected to the output interface, the second electric push rod is arranged below the first electric push rod, the shell of the second electric push rod is fixed on the middle box body, the power output end of the second electric push rod is fixed on the lower box body, or the shell of the second electric push rod is fixed on the lower box body, and the power output end of the second electric push rod is fixed on the middle box body.

In order to enable the first electric push rod to drive the middle box body to move up and down, the power output end of the first electric push rod is a screw rod which is vertically and downwardly extended, and the output interface is in threaded connection with the screw rod.

In order to avoid the drive mechanism to encroach on the front-back width of the box body, the back of the back plate of the upper box body is inwards concave to form a yielding groove, the yielding groove is arranged in the middle area of the left-right direction of the back plate and extends vertically, and the screw rod and the output interface are arranged in the yielding groove.

In order to enable the second electric push rod to drive the lower box body to move up and down relative to the middle box body, the movable output end of the second electric push rod is a push rod which is vertically arranged, a connecting piece is arranged at the end part of the push rod, and the connecting piece is fixedly connected to the middle box body or the lower box body.

In order to make the lower box move more steadily, the second electric push rod is arranged at the left-right center or approximately left-right center position of the middle box and the lower box.

Preferably, the middle case is wrapped outside the upper case, and the lower case is received inside the middle case. So set up, under non-operating condition, go up the box and can accomodate in the well box, lower box also can accomodate in the well box, overall structure is compacter, succinct.

In order to reduce the moving friction of the middle box body, a first roller and a second roller are arranged on the back of the middle box body.

Preferably, the bottom of the middle box body extends forwards to form a smoke collecting hood, the front side surface of the lower box body is provided with a smoke inlet, and the lower box body can extend downwards from the middle box body to enable the smoke inlet to be positioned at the rear lower part of the smoke collecting hood.

In order to enable lifting movement of the middle box body and the lower box body to be smoother, the upper box body is in sliding connection with the middle box body through a first guide rail pair, and the middle box body is in sliding connection with the lower box body through a second guide rail pair.

Further preferably, the first guide rail pair has two pairs and is arranged at the left side and the right side of the corresponding box body, and the second guide rail pair has two pairs and is arranged at the left side and the right side of the corresponding box body.

Preferably, in any of the above aspects, the first electric putter and the second electric putter are capable of synchronous operation or asynchronous operation under the control of the controller.

Compared with the prior art, the utility model has the advantages that: the lifting type range hood comprises a lifting type range hood body, a lower box body, a first electric push rod, a second electric push rod, a lifting stroke and a speed adjusting mechanism, wherein the lifting type range hood body is driven by the first electric push rod, the lower box body is driven by the second electric push rod to perform lifting motion, namely, the two-stage lifting of the middle box body and the lower box body is realized under the driving of a double driving structure, the lifting stroke is controllable, the speed is adjustable, when the middle box body and the lower box body synchronously lift to the highest position, the effect of being flush with a cabinet can be realized, when the range hood descends, the smoke suction opening is driven downwards by virtue of the large stroke of the two-stage driving, the smoke suction inlet is closer to a smoke source, and the smoke suction effect can be improved.

Drawings

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

fig. 2 is a schematic view of a structure of the range hood of fig. 1 at another angle;

Fig. 3 is a schematic view of an internal structure of the range hood shown in fig. 2.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 3, the lifting type range hood of the present embodiment includes an upper case 1, a middle case 2 and a lower case 3, the middle case 2 is wrapped outside the upper case 1, the lower case 3 is accommodated inside the middle case 2, and a range hood fan (not shown) may be installed inside the upper case 1. The direction indicated by arrow A in FIG. 1 is taken as the right direction, the bottom of the middle box body 2 extends forwards to form a smoke collecting hood 21, the lower box body 3 is an air inlet body, the front side surface of the lower box body 3 is provided with a smoke inlet 31, and the lower box body 3 can extend downwards from the middle box body 2 to enable the smoke inlet 31 to be positioned at the rear lower part of the smoke collecting hood 21.

The middle box body 2 moves up and down relative to the upper box body 1 under the drive of the first electric push rod 4, and the lower box body 3 moves up and down relative to the middle box body 2 under the drive of the second electric push rod 5. The first electric push rod 4 and the second electric push rod 5 can synchronously or asynchronously act under the control of the controller, and the stroke and the speed are adjustable.

The power output end of the first electric push rod 4 in this embodiment is a screw 41, the screw 41 extends vertically downwards, the screw 41 is connected with an output interface 6 in a threaded manner, and the middle box 2 is fixedly connected to the output interface 6. The back of the back plate 11 of the upper box body 1 is concavely provided with a yielding groove 12, the yielding groove 12 is arranged in the middle area of the back plate 11 in the left-right direction and extends vertically, and the screw 41 and the output interface 6 are arranged in the yielding groove 12. Under the drive of the first electric push rod 4, the output interface 6 moves up and down along the screw 41, so as to drive the middle box 2 to move up and down synchronously.

The second electric putter 5 is disposed below the first electric putter 4 and is located at a left-right centered or approximately centered position of the middle casing 2 and the lower casing 3. In this embodiment, the housing 50 of the second electric putter 5 is fixed on the lower case 3, and the power output end of the second electric putter 5 is a vertically arranged telescopic rod 51, and a connecting piece 52 is mounted at the end of the telescopic rod 51, and the connecting piece 52 is fixedly connected to the middle case 2. The lower case 3 is driven by the second electric push rod 5 to move up and down relative to the middle case 2.

In order to ensure that the middle case 2 and the lower case 3 can move smoothly, the upper case 1 and the middle case 2 are slidably connected through a first guide rail pair 81, and the middle case 2 and the lower case 3 are slidably connected through a second guide rail pair 82. The back of the middle box body 2 is provided with a first roller 71 and a second roller 72, and the first roller 71 and the second roller 72 are arranged on the left side and the right side of the back plate of the middle box body.

When the middle box body 2 and the lower box body 3 rise to the highest position synchronously, the effect of being flush with the cabinet can be achieved; when descending, the smoke inlet 31 is closer to a smoke source by means of the large stroke of two-stage driving, so that the oil smoke absorbing effect is improved.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims (10)

1. The utility model provides a lifting type range hood, includes box (1), well box (2) and lower box (3), under actuating mechanism's drive, well box (2) can do elevating movement for last box (1), lower box (3) can do elevating movement for well box (2), its characterized in that: the driving mechanism comprises a first electric push rod (4) for driving the middle box body (2) to lift and a second electric push rod (5) for driving the lower box body (3) to lift, an output interface (6) is arranged at the power output end of the first electric push rod (4), the middle box body (2) is fixedly connected to the output interface (6), the second electric push rod (5) is arranged below the first electric push rod (4), a shell (50) of the second electric push rod (5) is fixed on the middle box body (2) and the power output end of the second electric push rod (5) is fixed on the lower box body (3), or the shell (50) of the second electric push rod (5) is fixed on the lower box body (3) and the power output end of the second electric push rod (5) is fixed on the middle box body (2).

2. The lifting range hood of claim 1, wherein: the power output end of the first electric push rod (4) is a screw rod (41), the screw rod (41) vertically extends downwards, and the output interface (6) is in threaded connection with the screw rod (41).

3. The lifting range hood of claim 2, wherein: the back of the back plate (11) of the upper box body (1) is inwards concave to form a yielding groove (12), the yielding groove (12) is arranged in the middle area of the left and right directions of the back plate (11) and extends vertically, and the screw (41) and the output interface (6) are arranged in the yielding groove (12).

4. The lifting range hood of claim 1, wherein: the movable output end of the second electric push rod (5) is a telescopic rod (51) which is vertically arranged, a connecting piece (52) is arranged at the end part of the telescopic rod (51), and the connecting piece (52) is fixedly connected to the middle box body (2) or the lower box body (3).

5. The lifting range hood of claim 4, wherein: the second electric push rod (5) is arranged at the left and right central positions of the middle box body (2) and the lower box body (3).

6. The lifting range hood of claim 1, wherein: the middle box body (2) is wrapped outside the upper box body (1), and the lower box body (3) is accommodated inside the middle box body (2).

7. The lifting range hood of claim 6, wherein: the back of the middle box body (2) is provided with a first roller (71) and a second roller (72).

8. The lifting range hood of claim 6, wherein: the bottom of the middle box body (2) extends forwards to form a smoke collecting cover (21), a smoke inlet (31) is formed in the front side face of the lower box body (3), and the lower box body (3) can extend downwards out of the middle box body (2) to enable the smoke inlet (31) to be located below the rear of the smoke collecting cover (21).

9. The lifting range hood of claim 1, wherein: the upper box body (1) is slidably connected with the middle box body (2) through a first guide rail pair (81), and the middle box body (2) is slidably connected with the lower box body (3) through a second guide rail pair (82).

10. The lifting range hood according to any one of claims 1 to 9, wherein: the first electric push rod (4) and the second electric push rod (5) can synchronously or asynchronously act under the control of the controller.