CN221505095U - Fume exhauster - Google Patents

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a range hood, which comprises a fume collecting hood and a driving mechanism, wherein the fume collecting hood is provided with a working state and a storage state; the driving mechanism can drive the fume collecting hood to switch between a working state and a storage state, the driving mechanism comprises a guide rod and a rotating assembly, the rotating assembly comprises a fixed part and a movable part, the fixed part is movably matched with the guide rod, and the movable part is connected with the fume collecting hood. When the fume collecting hood is switched between the working state and the storage state, the fume collecting hood can move in a translational and rotational mode through the driving mechanism, so that the fume collecting hood is parallel to the front side and the rear side of the box body in the storage state, and the length of the fume collecting hood can be free from the limit of the width of the box body; the fume collecting hood is parallel to the left side and the right side of the box body in a working state, so that the shielding area of the fume collecting hood on the side face of the kitchen range can be ensured, and the fume absorbing effect is ensured. And the driving mechanism has a novel structure and is easy to implement.

Description

Fume exhauster

Technical Field

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

Background

A range hood is an electrical apparatus widely used in a kitchen for exhausting oil smoke generated in a cooking process of a range. In order to improve smoking effect, some current range hoods have a smoke inlet movably. When not culinary art, advance the cigarette mouth and hide in the cavity inside, when culinary art, advance the cigarette mouth and remove, make advance the cigarette mouth nearer from the smoke source, suck the oil smoke, and then promote smoking effect. However, in the prior art, some of the smoke inlet components are located at the left and right sides of the kitchen range after being opened, but the smoke inlet components are generally opened by rotating around an axis along the front and rear directions of the range hood, and when the smoke inlet components are stored, the length direction of the smoke inlet components is consistent with the front and rear directions of the range hood shell, so that the overall size of the range hood is avoided, the length of the smoke inlet components is limited, and the effect of the range hood is affected.

Disclosure of utility model

The utility model aims to provide a range hood, the length of a fume collecting hood is not limited by the width of a box body, and the fume absorbing effect can be ensured.

To achieve the purpose, the utility model adopts the following technical scheme:

A range hood, comprising:

A fume collecting hood having an operating state and a storage state;

the driving mechanism can drive the fume collecting hood to switch between a working state and a storage state, the driving mechanism comprises a guide rod and a rotating assembly, the rotating assembly comprises a fixing part and a movable part, the fixing part is movably matched with the guide rod, the movable part is connected with the fume collecting hood, the fixing part and the movable part can move along the axial direction of the guide rod together, and the movable part can also rotate relative to the fixing part.

As a preferred implementation mode of the range hood, the fixed part and the movable part are annular, and the fixed part is positioned in a central hole of the movable part; the number of the guide rods is at least two, external threads are arranged on the guide rods, at least two guide holes are arranged on the fixing part, the guide holes correspond to the guide rods one by one, internal threads are arranged in the guide holes, and the guide holes are in threaded connection with the guide rods;

The driving mechanism further comprises a lifting driving motor and a transmission assembly, and the lifting driving motor can drive the guide rod to rotate around the axis of the guide rod through the transmission assembly.

As the preferred embodiment of the range hood, the transmission assembly comprises a driving gear and a driven gear, wherein the driving gear is arranged on the output shaft of the lifting driving motor, the driven gear is arranged on the guide rod, and the driving gear is meshed with the driven gear.

As a preferred embodiment of the range hood, the driving mechanism further includes a rotation driving assembly capable of driving the movable portion to rotate relative to the fixed portion; the rotary driving assembly comprises a coil and a magnet, the coil is electrically connected with the power supply, the coil is arranged on the outer peripheral surface of the fixed part, and the magnet is arranged on the inner peripheral surface of the movable part; or the rotary driving assembly comprises a rotary driving motor and a gear, the gear is arranged on an output shaft of the rotary driving motor, teeth are arranged on the peripheral surface of the movable part, and the gear is meshed with the teeth on the movable part.

As a preferred embodiment of the range hood, a rotary support is provided between the fixed portion and the movable portion.

As a preferred embodiment of the range hood, the rotary support is a ball.

As a preferred embodiment of the range hood, the range hood further comprises a box body, an opening is arranged at the lower end of the box body, when the fume collecting hood is in a working state, the fume collecting hood extends out of the box body from the opening, and the fume collecting hood is parallel to the left side surface and the right side surface of the box body; when the fume collecting hood is in a storage state, the fume collecting hood is retracted to the inner side of the box body from the opening, and the fume collecting hood is parallel to the front side and the rear side of the box body.

As a preferred embodiment of the range hood, the range hood further comprises a chimney, the guide rod is positioned at the periphery of the chimney, the chimney is provided with a flue, the fume collecting hood is provided with a fume collecting cavity, and the fume collecting cavity is communicated with the flue; the lower part of the side face facing the cooking range when the fume collecting hood is in a working state is provided with a fume inlet which is communicated with the fume collecting cavity.

As the preferred implementation mode of the range hood, the flue is provided with a smoke passing port and a smoke outlet communicated with the flue, the movable part is provided with a first smoke passing port communicated with the smoke collecting cavity, the fixed part is provided with a second smoke passing port communicated with the smoke passing port, and when the smoke collecting hood is in a working state, the first smoke passing port is opposite to the second smoke passing port.

As the preferred implementation mode of the range hood, the number of the fume collecting hoods and the number of the driving mechanisms are two, and the fume collecting hoods and the driving mechanisms are in one-to-one correspondence.

The utility model has the beneficial effects that:

The utility model provides a range hood, wherein when a fume collecting hood is switched between a working state and a storage state, the fume collecting hood can move in a translational and rotational mode through a driving mechanism, so that the fume collecting hood is parallel to the front side surface and the rear side surface of a box body in the storage state, and the length of the fume collecting hood can not be limited by the width of the box body; the fume collecting hood is parallel to the left side and the right side of the box body in a working state, so that the shielding area of the fume collecting hood on the side face of the kitchen range can be ensured, and the fume absorbing effect is ensured. And the driving mechanism has a novel structure and is easy to implement.

Drawings

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

Figure 2 is a schematic view of a fume collection hood according to an embodiment of the present utility model in a stowed condition;

figure 3 is a schematic view of a fume collection hood lowering process according to an embodiment of the present utility model;

figure 4 is a schematic view of the hood according to an embodiment of the present utility model lowered into position;

Figure 5 is a schematic view of the hood according to an embodiment of the present utility model rotated to an operative condition;

Figure 6 is a schematic view of a structure of a fume collecting hood according to an embodiment of the present utility model in a stowed state;

figure 7 is a rear view of the hood according to an embodiment of the present utility model in a stowed condition;

Figure 8 is a rear view of the hood according to an embodiment of the present utility model in an operative condition;

figure 9 is a second rear view of the hood according to the embodiment of the present utility model in a stowed condition;

fig. 10 is a partial enlarged view at a in fig. 9.

In the figure:

10. a case;

20. a chimney; 21. A smoke passing port; 22. A flue;

30. A fume collecting hood; 31. A smoke inlet; 32. A smoke collecting cavity;

41. A guide rod; 42. a lifting driving motor; 43. a rotating assembly; 431. a fixing part; 432. a movable part; 433. a ball; 44. a rotary drive assembly; 441. a coil; 442. and (3) a magnet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; it may be a mechanical connection that is made, or may be an electrical connection. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 10, an embodiment of the present utility model provides a range hood, which includes a case 10, two smoke pipes 20, two smoke collecting hoods 30 and two driving mechanisms, wherein an opening is formed at the lower end of the case 10; two chimney 20 interval sets up in box 10, and the axis of chimney 20 sets up perpendicularly to the upper and lower terminal surface of box 10, and chimney 20 has the flue 22 that extends along self axis direction. Two fume collecting hoods 30 are arranged on the two smoke pipes 20 in a one-to-one correspondence manner, wherein one fume collecting hood 30 corresponds to one of the two kitchen ranges, and the other fume collecting hood 30 corresponds to the other of the two kitchen ranges. The fume collecting hood 30 has an operating state in which it is extended from the opening to the outside of the case 10 and a storage state in which it is retracted from the opening to the inside of the case 10. When the fume collecting hood 30 is in a working state, the fume collecting hood 30 is parallel to the left and right sides of the box body 10; when the fume collecting hood 30 is in the storage state, the fume collecting hood 30 is parallel to the front and rear sides of the case 10. The two driving mechanisms are in one-to-one correspondence with the two fume collecting hoods 30, the driving mechanisms are configured to drive the fume collecting hoods 30 to do translational motion along the axis direction of the chimney 20 and do rotational motion around the axis of the chimney 20, and the driving mechanisms can drive the fume collecting hoods 30 to switch between a working state and a storage state.

Referring to fig. 2 to 5, when the fume collecting hood 30 is switched from the storage state to the working state, the driving mechanism firstly drives the fume collecting hood 30 to move downwards for a certain distance along the axial direction of the chimney 20 (the process shown in fig. 2 to 4), and then the driving mechanism drives the fume collecting hood 30 to rotate 90 degrees around the axial direction of the chimney 20 in the direction away from the other fume collecting hood 30 (the process shown in fig. 4 to 5), so that the fume collecting hood 30 is positioned at one side of the corresponding kitchen range. When the fume collecting hood 30 is switched from the working state to the storage state, the driving mechanism drives the fume collecting hood 30 to rotate 90 degrees around the axis of the chimney 20 towards the direction close to the other fume collecting hood 30, and then drives the fume collecting hood 30 to move upwards for a certain distance along the axis direction of the chimney 20. The two fume collecting hoods 30 can be controlled independently according to the opening condition of the cooking range, when only the left cooking range is opened, only the fume collecting hood 30 positioned on the left side can be controlled to be switched to the working state, when only the right cooking range is opened, only the fume collecting hood 30 positioned on the right side can be controlled to be switched to the working state, and when the two cooking ranges are simultaneously opened, both the two fume collecting hoods 30 can be controlled to be switched to the working state. It will be appreciated that when both fume collecting hoods 30 are in the storage state, both fume collecting hoods 30 are similar to the state in which both doors of the double door are closed; when the fume collecting hood 30 is switched from the storage state to the working state, the process of rotating the fume collecting hood 30 by 90 degrees around the axis of the fume tube 20 in the direction away from the other fume collecting hood 30 is similar to the process of opening the door body; also, when the fume collecting hood 30 is switched from the operating state to the storage state, the process of rotating the fume collecting hood 30 by 90 degrees around the axis of the chimney 20 in a direction approaching the other fume collecting hood 30 is similar to the process of closing the door body.

When the fume collecting hood 30 is in a working state, the fume collecting hood 30 shields the side face of the kitchen range, so that negative pressure can be concentrated above the kitchen range in use, the negative pressure range is reduced, the fume suction force is improved, the fume is prevented from escaping, and the fume sucking effect is improved; when the fume collecting hood 30 is in the storage state, the fume collecting hood 30 is positioned in the box 10, so that the attractiveness of the range hood is ensured. When the fume collecting hood 30 is switched between the working state and the storage state, the fume collecting hood 30 can move in a translational and rotational mode through the driving mechanism, so that the fume collecting hood 30 is parallel to the front side and the rear side of the box body 10 in the storage state, and the length of the fume collecting hood 30 can be free from the limitation of the width of the box body 10; the fume collecting hood 30 is parallel to the left and right sides of the box 10 in the working state, so that the shielding area of the fume collecting hood 30 on the side of the cooking range can be ensured, and the fume absorbing effect is ensured.

Referring to fig. 6-8, the fume collection hood 30 has a fume collection cavity 32, the fume collection cavity 32 being in communication with the flue 22; the lower part of the side face facing the cooking range when the fume collecting hood 30 is in a working state is provided with a fume inlet 31, and the fume inlet 31 is communicated with a fume collecting cavity 32. The number of the smoke inlets 31 can be multiple, and the smoke inlets 31 can be distributed along the length direction of the smoke collecting hood 30 or in rectangular array along the length and height directions of the smoke collecting hood 30. When the fume collecting hood 30 is in a working state, the fume inlet 31 is close to a fume source, so that a fume suction path can be shortened, and a fume suction effect is improved.

With continued reference to fig. 6 to 10, the driving mechanism includes at least two guide rods 41, a lifting driving motor 42, a transmission assembly, a rotating assembly 43 and a rotating driving assembly 44, at least two guide rods 41 are distributed at intervals along the circumferential direction of the chimney 20, and external threads are provided on the guide rods 41; the elevation driving motor 42 can drive the guide bar 41 to rotate around its own axis through the transmission assembly. The rotating assembly 43 comprises a fixed part 431 and a movable part 432, wherein the fixed part 431 and the movable part 432 are annular, the fixed part 431 is positioned in a central hole of the movable part 432, the fixed part 431 is sleeved on the chimney 20, at least two guide holes are formed in the fixed part 431, the at least two guide holes correspond to the at least two guide rods 41 one by one, internal threads are formed in the guide holes, and the guide holes are in threaded connection with the guide rods 41; the movable portion 432 is sleeved on the fixed portion 431, the movable portion 432 can rotate relative to the fixed portion 431, and the fume collecting hood 30 is connected to the movable portion 432. The rotation driving unit 44 can drive the movable portion 432 to rotate relative to the fixed portion 431. Preferably, a rotary support is provided between the fixed portion 431 and the movable portion 432, for example, the rotary support may be a ball 433. When the lifting driving motor 42 drives the guide rod 41 to rotate through the transmission assembly, the guide rod 41 can drive the rotating assembly 43 to rotate and translate in a combined mode because of threaded connection between the guide rod 41 and the fixing portion 431, and the rotating assembly 43 is limited in rotating motion because of at least two guide rods 41, and only translational motion along the axis direction of the guide rod 41 occurs to the rotating assembly 43. When the lifting driving motor 42 drives the rotating assembly 43 to perform translational movement, the fixed portion 431 and the movable portion 432 move as a whole; when the rotation driving unit 44 drives the movable portion 432 to rotate, the fixed portion 431 remains fixed, and only the movable portion 432 rotates.

In this embodiment, the transmission assembly includes a driving gear and a driven gear, the driving gear is disposed on the output shaft of the lifting driving motor 42, the driven gear is disposed on the guide rod 41, and the driving gear is meshed with the driven gear. Any structure capable of transmitting the movement of the elevation driving motor 42 to the guide bar 41 is not exemplified herein.

In the present embodiment, referring to fig. 9 and 10, the rotation driving unit 44 includes a coil 441 and a magnet 442, the coil 441 is electrically connected to a power source, the coil 441 is disposed on an outer circumferential surface of the fixed portion 431, the magnet 442 is disposed on an inner circumferential surface of the movable portion 432, and the movable portion 432 can be driven to rotate relative to the fixed portion 431 after the coil 441 passes through. Also, this is merely illustrative, and the structure of the rotary drive assembly 44 is not limited thereto, and for example, the rotary drive assembly 44 may include a rotary drive motor and a gear provided on an output shaft of the rotary drive motor, the movable portion 432 being provided with teeth on an outer peripheral surface thereof, the gear being engaged with the teeth on the movable portion 432. Any structure that can drive the movable portion 432 to rotate relative to the fixed portion 431 is not specifically mentioned.

Note that, referring to fig. 6 to 8, the chimney 20 is provided with a smoke passing port 21 and a smoke outlet which communicate with the smoke duct 22, the movable portion 432 is provided with a first smoke passing port which communicates with the smoke collecting chamber 32, and the fixed portion 431 is provided with a second smoke passing port which communicates with the smoke passing port 21. When the fume collecting hood 30 is in a storage state, the first fume passing port and the second fume passing port are arranged in a staggered mode, when the fume collecting hood 30 is switched to a working state from the storage state, the movable part 432 rotates relative to the fixed part 431, when the fume collecting hood 30 is switched to the working state, the movable part 432 just rotates to the position that the first fume passing port is opposite to the second fume passing port, and at the moment, the fume can sequentially enter the flue 22 through the fume inlet 31, the fume collecting cavity 32, the first fume passing port, the second fume passing port and the fume passing port 21, and then flows into the air duct system through the fume outlet.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A range hood, comprising:

a smoke collecting hood (30) having an operating state and a storage state;

The driving mechanism can drive the fume collecting hood (30) to be switched between the working state and the storage state, the driving mechanism comprises a guide rod (41) and a rotating assembly (43), the rotating assembly (43) comprises a fixing part (431) and a movable part (432), the fixing part (431) is movably matched with the guide rod (41), the movable part (432) is connected with the fume collecting hood (30), the fixing part (431) and the movable part (432) can move along the axial direction of the guide rod (41) together, and the movable part (432) can also rotate relative to the fixing part (431).

2. The range hood according to claim 1, wherein the fixed portion (431) and the movable portion (432) are both annular, and the fixed portion (431) is located in a central hole of the movable portion (432); the number of the guide rods (41) is at least two, external threads are arranged on the guide rods (41), at least two guide holes are arranged on the fixing part (431), the guide holes correspond to the guide rods (41) one by one, internal threads are arranged in the guide holes, and the guide holes are in threaded connection with the guide rods (41);

The driving mechanism further comprises a lifting driving motor (42) and a transmission assembly, and the lifting driving motor (42) can drive the guide rod (41) to rotate around the axis of the guide rod through the transmission assembly.

3. The range hood according to claim 2, wherein the transmission assembly comprises a driving gear and a driven gear, the driving gear is arranged on an output shaft of the lifting driving motor (42), the driven gear is arranged on the guide rod (41), and the driving gear is meshed with the driven gear.

4. The range hood according to claim 1, wherein the drive mechanism further comprises a rotational drive assembly (44), the rotational drive assembly (44) being capable of driving the movable portion (432) to rotate relative to the stationary portion (431); the rotary driving assembly (44) comprises a coil (441) and a magnet (442), wherein the coil (441) is electrically connected with a power supply, the coil (441) is arranged on the outer circumferential surface of the fixed part (431), and the magnet (442) is arranged on the inner circumferential surface of the movable part (432); or alternatively

The rotary driving assembly (44) comprises a rotary driving motor and a gear, the gear is arranged on an output shaft of the rotary driving motor, teeth are arranged on the outer peripheral surface of the movable portion (432), and the gear is meshed with the teeth on the movable portion (432).

5. The range hood according to claim 1, characterized in that a rotary support is provided between the fixed part (431) and the movable part (432).

6. The range hood according to claim 5, wherein the rotary support is a ball (433).

7. The range hood according to claim 1, further comprising a box (10), wherein an opening is provided at a lower end of the box (10), the fume collecting hood (30) extends out of the box (10) from the opening when the fume collecting hood (30) is in the working state, and the fume collecting hood (30) is parallel to left and right sides of the box (10); when the fume collecting hood (30) is in the storage state, the fume collecting hood (30) is retracted to the inner side of the box body (10) from the opening, and the fume collecting hood (30) is parallel to the front side and the rear side of the box body (10).

8. The range hood according to claim 1, further comprising a chimney (20), the guide bar (41) being located at the periphery of the chimney (20), the chimney (20) having a flue (22), the fume collecting hood (30) having a fume collecting cavity (32), the fume collecting cavity (32) being in communication with the flue (22); the lower part of the side face of the fume collecting hood (30) facing the cooking range when the fume collecting hood is in the working state is provided with a fume inlet (31), and the fume inlet (31) is communicated with the fume collecting cavity (32).

9. The range hood according to claim 8, wherein the chimney (20) is provided with a smoke passing port (21) and a smoke outlet which are communicated with the flue (22), the movable part (432) is provided with a first smoke passing port which is communicated with the smoke collecting cavity (32), the fixed part (431) is provided with a second smoke passing port which is communicated with the smoke passing port (21), and when the smoke collecting hood (30) is in the working state, the first smoke passing port is opposite to the second smoke passing port.

10. The range hood according to claim 1, wherein the number of the fume collecting hoods (30) and the driving mechanisms is two, and the fume collecting hoods (30) and the driving mechanisms are in one-to-one correspondence.