CN217031301U

CN217031301U - Smoke machine

Info

Publication number: CN217031301U
Application number: CN202220365336.8U
Authority: CN
Inventors: 李佳阳; 司徒叠强
Original assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-07-22
Anticipated expiration: 2032-02-22

Abstract

The utility model relates to the field of electric appliances, and provides a range hood, which comprises: the casing assembly, inside is formed with the runner, casing assembly has into mouth and outlet flue, advance the mouth the runner with the outlet flue communicates in proper order. The cigarette collecting plate is rotatably arranged on the outer side of the shell assembly and is suitable for rotating towards the direction close to the cigarette inlet so as to be switched to a cigarette collecting state and rotating towards the direction far away from the cigarette inlet so as to be switched to an idle state; in the cigarette gathering state, the cigarette gathering plate is positioned above the cigarette inlet and forms an included angle with the cigarette inlet; in the idle state, the cigarette collecting plate is attached to the outer surface of the shell assembly. The smoke machine provided by the utility model can prevent the oil smoke from escaping in a smoke collecting state, ensure that as much oil smoke as possible is sucked into the smoke inlet, reduce the occupied space of the smoke machine in an idle state, and has a more beautiful and elegant structure.

Description

Smoke exhaust ventilator

Technical Field

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

Background

Clean air is one of the major demands of people for a healthy living environment. The flow rate, noise and unit flow rate purification efficiency are main indexes for evaluating the air purification device. The air purification device often pushes the air flow to flow in a designated direction inside the air purification device through a mechanism, and therefore negative pressure is formed at the front end of an air inlet of the air purification device to drive the air flow to enter the air purification device.

In particular, in a kitchen scene, a large amount of water vapor and smoke (generally called soot) harmful to a human body are generated during cooking, and thus an air cleaning device is required to collect and discharge or clean the soot generated during cooking. In such an air cleaning apparatus (range hood), more important is the flow rate through a specified area, i.e., a smoke generation area, than the flow rate, so that the smoke can be mostly or entirely sucked into the range hood and cleaned or discharged.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the range hood, which can prevent oil smoke from escaping in a smoke collecting state, ensure that as much oil smoke as possible is sucked into the smoke inlet, reduce the occupied space of the range hood in an idle state and has a more attractive and elegant structure.

A cigarette machine according to an embodiment of the present invention comprises:

the shell assembly is internally provided with a flow channel and is provided with a smoke inlet and a smoke outlet, and the smoke inlet, the flow channel and the smoke outlet are sequentially communicated;

the cigarette collecting plate is rotatably arranged on the outer side of the shell assembly and is suitable for rotating towards the direction close to the cigarette inlet so as to be switched to a cigarette collecting state and rotating towards the direction far away from the cigarette inlet so as to be switched to an idle state;

in the cigarette gathering state, the cigarette gathering plate is positioned above the cigarette inlet and forms an included angle with the cigarette inlet; in the idle state, the cigarette collecting plate is attached to the outer surface of the shell assembly.

According to the cigarette machine provided by the embodiment of the utility model, the rotatable cigarette collecting plate is arranged on the outer surface of the shell component, so that the cigarette collecting effect can be achieved, specifically, after the cigarette machine starts to work, the cigarette collecting plate is rotated to the position above the cigarette inlet to enable the cigarette inlet to be switched to the cigarette collecting state, so that the oil smoke generated by cooking is guided into the cigarette inlet under the cigarette collecting effect of the cigarette collecting plate, the oil smoke is prevented from escaping, and the oil smoke is ensured to be sucked into the cigarette inlet as much as possible. When the cigarette machine is out of work, the cigarette collecting plate rotates reversely so that the cigarette collecting plate is attached to the outer surface of the shell assembly, and therefore the cigarette collecting plate can be folded, occupied space of the cigarette machine is reduced, and the structure is more attractive and elegant.

According to one embodiment of the utility model, the smoke inlet extends from the mounting end of the smoke collecting plate to the bottom of the shell assembly, and the smoke inlet is an arc-shaped smoke inlet; an impeller is installed in the flow channel, the opening angle of the smoke inlet relative to the rotation center of the impeller is a, wherein a is more than or equal to 70 degrees and less than or equal to 150 degrees.

According to one embodiment of the utility model, in the cigarette holding state, the cigarette holding plate is horizontally arranged or obliquely extends downwards.

According to one embodiment of the utility model, in the cigarette collecting state, an included angle between the cigarette collecting plate and a horizontal plane is b, wherein b is more than or equal to 0 degree and less than or equal to 20 degrees.

According to one embodiment of the utility model, in the cigarette holding state, the distance between the mounting end of the cigarette holding plate and the cigarette inlet is not more than 5 mm.

According to one embodiment of the utility model, in the idle state, the cigarette collecting plate is attached to the attachment surface of the shell assembly;

binding face follows the installation end orientation of holding together the cigarette board the top of casing subassembly extends, binding face orientation deviates from hold together the direction slope of cigarette board, just contained angle between binding face and the vertical face is c, wherein, 3C is less than or equal to.

According to one embodiment of the utility model, the shell assembly comprises a back plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are parallel to each other and are respectively fixed on the same side of the back plate;

an impeller is arranged between the first side plate and the second side plate, a driving piece is arranged on one side of the first side plate, which is back to the impeller, and a shaft sleeve is arranged on one side of the second side plate, which is back to the impeller;

one end of the impeller is in transmission connection with a driving shaft of the driving part, and the other end of the impeller is sleeved in the shaft sleeve.

According to one embodiment of the utility model, the cigarette collecting plate is arranged on the first side plate and/or the second side plate through a rotating connecting part, the rotating connecting part comprises a first hinge and a second hinge, and the first hinge is fixed on the first side plate or the second side plate;

one end of the second hinge is rotatably connected with the first hinge, and the other end of the second hinge penetrates through the avoiding hole of the shell and is fixedly connected with the mounting end of the cigarette collecting plate.

According to one embodiment of the utility model, a damping connector is arranged between the shell assembly and the cigarette collecting plate.

According to one embodiment of the present invention, the housing assembly further includes a first volute and a second volute, both of which are fixed between the first side plate and the second side plate, the first volute, the second volute, the first side plate, the second side plate, and the back plate collectively defining the flow passage.

According to one embodiment of the utility model, the first volute has a first arc segment and the second volute has a second arc segment;

the runner includes curved first runner, first circular arc section with form between the second circular arc section first runner, install in the first runner the impeller.

According to an embodiment of the present invention, the first volute further has a sloped section transitionally connected with the first circular arc section; the inclined section extends obliquely in a direction away from the back plate in a direction away from the impeller;

the flow passages comprise second flow passages, the second flow passages are formed between the inclined sections and the back plate, and the flow area of the second flow passages in the direction far away from the impeller is increased continuously.

According to an embodiment of the utility model, the first side plate is fixed to the back plate by a first bracket, and the second side plate is fixed to the back plate by a second bracket.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a cigarette making machine provided by an embodiment of the utility model in a cigarette gathering state;

FIG. 2 is a schematic structural diagram of a cigarette making machine provided by the embodiment of the utility model in a cigarette gathering state;

FIG. 3 is a schematic perspective view of a range hood provided by an embodiment of the present invention in an idle state;

FIG. 4 is a schematic structural diagram of a range hood provided by an embodiment of the utility model in an idle state;

FIG. 5 is a schematic partial perspective view of a cigarette making machine according to an embodiment of the present invention in a cigarette collecting state;

FIG. 6 is a second partial perspective view of a cigarette machine according to an embodiment of the present invention in a cigarette-gathering state;

FIG. 7 is a schematic view of a portion of a cigarette maker according to an embodiment of the present invention in an idle state;

figure 8 is a schematic partial perspective view of a cigarette maker provided in accordance with an embodiment of the utility model;

figure 9 is a second partially schematic perspective view of a cigarette maker according to an embodiment of the present invention;

figure 10 is a third schematic partial perspective view of a cigarette maker according to an embodiment of the present invention;

fig. 11 is a perspective view of a bushing according to an embodiment of the present invention.

Reference numerals:

001. a smoke inlet; 002. a smoke outlet; 100. a cigarette collecting plate; 110. a first hinge; 120. a second hinge; 101. an installation end; 200. a housing; 210. a binding face; 220. avoiding holes; 1. a back plate; 2. a first side plate; 3. a second side plate; 4. a drive member; 41. a drive shaft; 42. a housing; 5. an impeller; 61. a first volute; 611. a first arc segment; 612. an inclined section; 62. a second volute; 621. a second arc segment; 7. a shaft sleeve; 71. a shaft hole; 72. a fixing hole; 81. a first bracket; 82. a second bracket; 91. a first flow passage; 92. a second flow passage.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but 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, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention may be understood as specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

A machine according to an embodiment of the present invention, as shown in figures 1 to 11, comprises a housing assembly and a cigarette collecting plate 100.

The inside runner that is formed with of housing assembly, housing assembly have into mouth 001 and outlet flue 002, advance mouth 001, runner and outlet flue 002 and communicate in proper order. The cigarette collecting plate 100 is rotatably disposed at the outer side of the housing assembly, and the cigarette collecting plate 100 is suitable for rotating towards the direction close to the cigarette inlet 001 to switch to a cigarette collecting state, and suitable for rotating towards the direction far away from the cigarette inlet 001 to switch to an idle state.

In the cigarette gathering state, the cigarette gathering plate 100 is positioned above the cigarette inlet 001 and forms an included angle with the cigarette inlet 001; in the idle state, the cigarette collecting plate 100 is attached to the outer surface of the housing assembly.

According to the cigarette machine provided by the embodiment of the utility model, the rotatable cigarette collecting plate 100 is arranged on the outer surface of the shell component, so that the cigarette collecting effect can be achieved, specifically, after the cigarette machine starts to work, the cigarette collecting plate 100 is rotated to the position above the cigarette inlet 001 to be switched to the cigarette collecting state, so that the oil smoke generated by cooking is guided into the cigarette inlet 001 under the cigarette collecting effect of the cigarette collecting plate 100, the oil smoke is prevented from escaping, and the oil smoke is ensured to be sucked into the cigarette inlet 001 as much as possible. When the cigarette machine is out of work, the cigarette collecting plate 100 reversely rotates to enable the cigarette collecting plate 100 to be attached to the outer surface of the shell component, and therefore the cigarette collecting plate 100 can be folded, occupied space of the cigarette machine is reduced, and the structure is more attractive and elegant.

It should be noted that the cigarette collecting plate 100 provided in the cigarette machine of the present invention can play a role of collecting cigarettes, but cannot play a role of shielding the cigarette inlet 001, that is, the cigarette inlet 001 of the present invention is normally open, so that a user does not need to perform other operations after opening the cigarette machine, and the cigarette inlet 001 can automatically suck the oil smoke.

The specific working principle of the cigarette collecting plate 100 according to the embodiment of the present invention is as follows: when the cigarette machine is not used, the cigarette gathering plate 100 is always in an idle state, and the cigarette gathering plate 100 is attached to the outer surface of the shell assembly, so that the occupied space of the whole cigarette machine is reduced, and a large enough activity space is reserved for a user. When the cigarette machine began the during operation, the user can rotate the direction that is close to into mouth 001 with holding together cigarette board 100 orientation, make hold together cigarette board 100 be in the top of advancing mouth 001 and be certain contained angle with advancing mouth 001, hold together cigarette board 100 and switch to holding together the cigarette state this moment, when the cigarette machine is hung on the wall, hold together cigarette board 100 under the cigarette state and be in on the ascending route of oil smoke, the oil smoke can receive holding together blockking of cigarette board 100 at the in-process that rises, thereby the oil smoke is held together cigarette board 100 and is dammed, and be guided to advancing in the mouth 001 along holding together cigarette board 100, and then prevent the escape of oil smoke, the oil absorption cigarette effect of cigarette machine has been improved.

It should be noted that the above-mentioned "cigarette collecting plate 100 is located above the cigarette inlet 001" means that the cigarette collecting plate 100 is located on the ascending path of the cigarette liquid when the cigarette machine is hung on the wall. The above-mentioned "the smoke collecting plate 100 and the smoke inlet 001 form an included angle" means that a smoke collecting space is formed between the smoke collecting plate 100 and the smoke inlet 001 to accommodate the trapped oil smoke and make it enter the smoke inlet 001. In addition, the purpose of the above-mentioned "cigarette collecting plate 100 is attached to the outer surface of the shell assembly" is to fold the cigarette collecting plate 100 on the outer side of the shell assembly, so as to reduce the occupied space of the cigarette machine.

As shown in fig. 1, in some embodiments of the present invention, a housing assembly of a cigarette making machine is overall cubic in appearance, a rotatable cigarette collecting plate 100 is disposed on a side wall of the housing assembly facing a user, and an end of the cigarette collecting plate 100 is rotatably mounted at a position close to the middle of the side wall, an upper half portion of the side wall forms an attaching surface 210 adapted to attach to the cigarette collecting plate 100, and a lower half portion of the side wall forms a cigarette inlet 001, so that, in an idle state, the cigarette collecting plate 100 is attached to the attaching surface 210, when the cigarette making machine starts to work, the user can rotate the cigarette collecting plate 100 downward to a position close to a horizontal plane or lower than the horizontal plane, so that the cigarette collecting plate 100 is located above the cigarette inlet 001 and forms an included angle with the cigarette inlet 001, that is, a cigarette collecting space is formed between the cigarette collecting plate 100 and the cigarette inlet 001.

Of course, the above-mentioned embodiment is only one of many embodiments of the present invention, and the purpose is only to explain the rotation process of the cigarette collecting plate 100, and the present invention is not limited to the specific features, for example, the housing component of the cigarette maker may also take a cylindrical shape, a drop shape, a circular shape, etc., the installation position of the cigarette collecting plate 100 may also be at the top or middle of the housing component, etc., the setting position of the cigarette inlet 001 may also be at the bottom or middle of the housing component, etc., and the present invention is not limited to the above-mentioned features.

In some embodiments of the present invention, the smoke-collecting plate 100 may be rotated manually, for example, the smoke-collecting plate 100 and the housing assembly are connected by a mechanical structure such as a link assembly. In addition, the smoke collecting plate 100 can also be rotated in an automatic manner, for example, the smoke collecting plate 100 and the housing assembly are connected by a power structure such as a motor or an air cylinder.

According to one embodiment of the utility model, the cigarette collecting plate 100 is rotated manually, so that a driving part such as a motor and the like is not required to be installed, the size is small, the structure is simple, the cost is reduced, and the manual reliability is higher.

In addition, the specific shape of the smoke collecting plate 100 is not limited in the present invention, for example, the smoke collecting plate 100 may be a rectangular plate, a circular plate, an irregular plate, etc., as long as the smoke collecting plate 100 can play a role in intercepting the oil smoke in the smoke collecting state.

As shown in fig. 1, according to an embodiment of the present invention, the smoke inlet 001 extends from the mounting end 101 of the smoke collecting plate 100 toward the bottom of the housing assembly, and the smoke inlet 001 is an arc-shaped smoke inlet 001. It should be noted that the mounting end 101 refers to an end of the cigarette collecting plate 100 rotatably mounted on the housing assembly, and the corresponding concept is a free end of the cigarette collecting plate 100, i.e. an end of the cigarette collecting plate 100 far from the mounting end 101.

Therefore, on one hand, because the extending starting point of the smoke inlet 001 is the mounting end 101 of the smoke collecting plate 100, the oil smoke intercepted by the smoke collecting plate 100 is not shielded by the outer wall surface of the shell assembly, and the oil smoke smoothly flows into the smoke inlet 001 under the guiding action of the smoke collecting plate 100; on the other hand, because the mouth 001 is the arc and extends to the bottom of casing subassembly always, consequently the opening of mouth 001 is great, can satisfy the user demand of a plurality of kitchen ranges to the smoking effect is also better.

As shown in fig. 5, according to one embodiment of the present invention, a fan assembly is mounted inside the housing assembly, the fan assembly including a drive member 4 and an impeller 5, the impeller 5 being mounted within the flow passage.

As shown in fig. 7, according to one embodiment of the present invention, the opening angle a of the smoke inlet 001 with respect to the rotation center of the impeller 5 is 70 ° ≦ a ≦ 150 °. Like this, when the angle of opening of advancing cigarette mouth 001 is different angle values, can play different utilities and use under different application scenarios.

As shown in fig. 1, in one embodiment of the present invention, the lower side edge of the smoke inlet 001 is parallel to the rotation center of the impeller 5, and the lower side edge of the smoke inlet 001 and the rotation center of the impeller 5 are both in the same vertical plane, so that the smoke suction area of the smoke inlet 001 is larger. For example, if the edge of the mounting end 101 of the smoke collecting plate 100 is parallel to the rotation center of the impeller 5 and is located in the same horizontal plane, after the smoke inlet 001 adopts the structure described in this embodiment, the opening angle of the smoke inlet 001 is 90 °, it can be understood that the opening angle can enable the smoke inlet 001 to meet the smoking requirements of multiple cooking ranges, and thus the smoke collecting plate can be applied to the application scenes of multiple cooking ranges.

In another embodiment of the present invention, the lower side edge of the smoke inlet 001 is parallel to the rotation center of the impeller 5, and the plane where the lower side edge of the smoke inlet 001 and the rotation center of the impeller 5 are located forms an included angle with the vertical plane, the included angle is not less than 10 °, it should be noted that, in this embodiment, when the cigarette making machine is hung on a wall surface, the lower side edge of the smoke inlet 001 is located on the side of the rotation center of the impeller 5 away from the wall surface.

Thus, the bottom space of the housing assembly can have a certain oil storage capacity, so that condensed water and condensed oil can be accommodated. For example, if the edge of the mounting end 101 of the smoke collecting plate 100 is parallel to the rotation center of the impeller 5 and is located in the same horizontal plane, after the smoke inlet 001 adopts the structure described in this embodiment, the opening angle of the smoke inlet 001 is in the range of 70 ° to 80 °, and it can be understood that the angle can make the bottom of the range hood meet the requirement of oil storage, so that the range hood can be applied to application scenes with more condensed oil and condensed water.

As shown in fig. 1 and 2, according to an embodiment of the present invention, in the smoke collecting state, the smoke collecting plate 100 is horizontally disposed or obliquely extends downward. In this way, the smoke collecting capability of the smoke collecting plate 100 can be improved, thereby further reducing the escape of oil smoke.

In one embodiment of the utility model, in the cigarette gathering state, the included angle between the cigarette gathering plate 100 and the horizontal plane is b (not shown in the figure), wherein b is more than or equal to 0 degrees and less than or equal to 20 degrees. Therefore, the effect of intercepting the oil smoke by the smoke-collecting plate 100 is ensured, and a large enough smoke-collecting space can be reserved for the intercepted oil smoke, so that the intercepted oil smoke is prevented from escaping due to the undersize smoke-collecting space.

As shown in fig. 1 to 4, in the idle state, the cigarette collecting plate 100 is disposed in close contact with the contact surface 210 of the housing assembly according to an embodiment of the present invention.

Binding face 210 extends towards the top of housing assembly from the installation end 101 of holding in the palm 100, and binding face 210 orientation deviates from the direction slope of holding in the palm 100, and the contained angle between binding face 210 and the vertical face is c, wherein, c is less than or equal to 3 degrees.

In this embodiment, because binding face 210 orientation deviates from the direction slope of holding together cigarette board 100 and the vertical contained angle between the face is not less than 3, consequently when holding together cigarette board 100 and being in idle state, also when holding together cigarette board 100 and laminating in binding face 210, hold together cigarette board 100 and can rely on self gravity to adhere to naturally on binding face 210, avoid holding together cigarette board 100 to take place to rotate, guarantee to hold together the stable laminating between cigarette board 100 and the binding face 210.

In an embodiment of the present invention, an attraction component (not shown in the drawings) is further disposed between the attaching surface 210 and the cigarette collecting plate 100, so as to further ensure stable attachment between the cigarette collecting plate 100 and the attaching surface 210, and prevent the cigarette collecting plate 100 from rotating without intervention of an external force. For example, a magnetic attraction component is disposed between the attaching surface 210 and the cigarette collecting plate 100, and the magnetic attraction component ensures that the cigarette collecting plate 100 is attracted and attached to the attaching surface 210 by magnetic force.

According to one embodiment of the utility model, the housing assembly comprises an outer housing and an inner housing, the inner housing forming a flow passage and mounting the impeller 5, the outer housing being shrouded outside the inner housing to ensure the structural integrity of the cigarette maker. Wherein, as shown in figure 1, the external shell comprises a back plate 1 and a shell 200, the shell 200 is formed with a smoke inlet 001 and a smoke outlet 002, the back plate 1 and the shell 200 are fixedly connected to form an internal installation cavity, and the cigarette machine is suitable for being hung on a wall surface through the back plate 1.

As shown in fig. 1 to 4, in one embodiment of the present invention, when the cigarette making machine is hung on a wall surface, the rotatable cigarette gathering plate 100 is provided on the front side wall of the outer casing 200 (i.e. the side wall of the outer casing 200 facing the user), the mounting end 101 of the cigarette gathering plate 100 is located in the middle of the front side wall of the outer casing 200, the upper half of the front side wall of the outer casing 200 is formed with an approximately vertical abutting surface 210, the abutting surface 210 is inclined toward the direction close to the back plate 1, and the included angle between the abutting surface 210 and the vertical surface is not less than 3 °. The lower half of the front side wall of the casing 200 is open to form a smoke inlet 001, the smoke inlet 001 extends from the mounting end 101 of the smoke collecting plate 100 to the bottom of the casing 200, and the opening angle a of the smoke inlet 001 to the rotation center of the impeller 5 is 70 ° < a > 150 °.

In some embodiments of the present invention, the smoke outlet 002 may be disposed on the top wall of the housing 200, and the smoke outlet 002 may also be disposed on the front side wall of the housing 200, and the present invention is not limited thereto, as long as the smoke outlet 002 is communicated with the flow channel and can ensure normal smoke outlet.

According to one embodiment of the utility model, a damping connection is provided between the housing assembly and the smoke collecting plate 100. Thus, the rotation of the cigarette gathering plate 100 can be ensured to be more gradual, and the use experience of a user is improved. For example, the damping connecting member may be a damping rotating shaft, a cylinder, a push rod, etc., and the present invention is not limited thereto.

The foregoing embodiments are illustrative and description of the outer housing of the cigarette maker of the present invention, and the structure of the inner housing of the cigarette maker will be described below in terms of specific embodiments so as to clearly describe the overall structure of the cigarette maker as proposed by the present invention.

As shown in fig. 8 to 10, according to one embodiment of the present invention, a housing assembly is formed with a flow channel, the housing assembly includes a back plate 1, a first side plate 2 and a second side plate 3, the first side plate 2 and the second side plate 3 are parallel to each other, and the first side plate 2 and the second side plate 3 are respectively fixed on the same side of the back plate 1. The backboard 1 belongs to an external shell, the first side plate 2 and the second side plate 3 belong to an internal shell, the first side plate 2 and the second side plate 3 are covered in an installation space of the external shell formed by the backboard 1 and the shell 200, and a flow channel is formed between the first side plate 2 and the second side plate 3.

The fan assembly comprises an impeller 5 and a driving part 4, the impeller 5 is installed between the first side plate 2 and the second side plate 3, the impeller 5 is located in the flow channel, the rotation axis of the impeller 5 is perpendicular to the first side plate 2 or the second side plate 3, the driving part 4 is fixed on the housing assembly, a driving shaft 41 of the driving part 4 penetrates through the first side plate 2, and the driving shaft 41 of the driving part 4 is in transmission connection with the impeller 5.

According to the cigarette machine provided by the embodiment of the utility model, the impeller 5 is fixed between the first side plate 2 and the second side plate 3 which are parallel to each other, so long as the rotation axis of the impeller 5 is perpendicular to any one of the first side plate 2 and the second side plate 3, the centering of the rotation axis of the impeller 5 can be realized, the centering assembly difficulty of the cross-flow impeller 5 is reduced, in addition, the structure can reduce the vibration of the whole machine, the noise is reduced, and the stability of the whole machine is improved.

According to an embodiment of the present invention, the cigarette gathering plate 100 is mounted on the first side plate 2 and the second side plate 3 through two sets of rotating connection components, each set of rotating connection components is a hinge structure and has the same structure, one end of the rotating connection component is fixed to the first side plate 2 or the second side plate 3, and the other end of the rotating connection component is connected to the mounting end 101 of the cigarette gathering plate 100 after passing through the avoiding hole 220 on the housing 200.

As shown in fig. 1, 5 and 6, in one embodiment of the present invention, the rotational connection part includes a first hinge 110 and a second hinge 120, and the first hinge 110 is fixed to the first side plate 2 or the second side plate 3. One end of the second hinge 120 is rotatably connected to the first hinge 110, and the other end of the second hinge 120 passes through the avoiding hole 220 on the front side wall of the housing 200 and is fixedly connected to the mounting end 101 of the cigarette collecting plate 100. Specifically, the second hinge 120 is a "U" shaped hinge, thereby facilitating the extension and retraction of the second hinge 120 within the clearance hole 220.

Of course, the rotary connecting component may also adopt other structures besides the embodiment, and the utility model is not limited in particular here.

As shown in fig. 8 and 9, in some embodiments of the present invention, the back plate 1 is used for fixing the cigarette making machine on a wall surface, when the back plate 1 is fixed on the wall surface, the first side plate 2 and the second side plate 3 are perpendicular to the back plate 1 and are vertically arranged, the first side plate 2 is arranged at the left side of the back plate 1, the second side plate 3 is arranged at the right side of the back plate 1, and a gap is left between the first side plate 2 and the second side plate 3 to install the impeller 5 and form a flow channel.

It should be noted that, for convenience of description, the side of the first side plate 2 facing away from the impeller 5 is hereinafter referred to as the outer side of the first side plate 2, and the side of the first side plate 2 facing the impeller 5 is referred to as the inner side of the first side plate 2, and the inner side and the outer side of the second side plate 3 are the same as those of the first side plate 2.

Specifically, one end of the impeller 5 facing the first side plate 2 is fixed to the inner side of the first side plate 2, and one end of the impeller 5 facing the second side plate 3 is fixed to the inner side of the second side plate 3. The driving part 4 is in transmission connection with one end of the impeller 5, wherein the driving part 4 can be a motor, an air cylinder and the like, and the driving part 4 can be installed on any one of the back plate 1, the first side plate 2 and the second side plate 3; alternatively, the driving member 4 may also be fixed to the back plate 1 and the first side plate 2, or fixed to the back plate 1 and the second side plate 3, and it should be noted that the structure and the installation position of the driving member 4 are not particularly limited in the present invention, as long as the driving member 4 is installed in the housing assembly and drives the impeller 5 to rotate.

As shown in fig. 8 and 9, according to one embodiment of the utility model, the driver 4 is fixed to the side of the first side plate 2 facing away from the impeller 5. The fan assembly further comprises a shaft sleeve 7, the shaft sleeve 7 is fixed on one side, back to the impeller 5, of the second side plate 3, and one end, facing the second side plate 3, of the impeller 5 penetrates through the shaft sleeve 7.

In this embodiment, the driver 4 is fixed outside the first side plate 2, the driving shaft 41 of the driver 4 penetrates through the first side plate 2 and extends into the first side plate 2, and the shaft sleeve 7 is fixed outside the second side plate 3. One end of the impeller 5 facing the first side plate 2 is in transmission connection with the driving shaft 41, and one end of the impeller 5 facing the second side plate 3 penetrates through the second side plate 3 and is sleeved in the shaft sleeve 7, or the transmission shaft positioned at the center of the impeller 5 penetrates through the second side plate 3 and is sleeved in the shaft sleeve 7.

Like this, impeller 5's both ends are connected with drive shaft 41 and axle sleeve 7 respectively, thereby realized impeller 5 fixed between first curb plate 2 and second curb plate 3, in addition, because first curb plate 2 and second curb plate 3 parallel arrangement, therefore, at the in-process of assembly impeller 5, only need guarantee drive shaft 41 and the mutually perpendicular of first curb plate 2 of driving piece 4, just can guarantee that impeller 5 is whole all to be the vertical state with first curb plate 2 and second curb plate 3, and then realize impeller 5's axis centering, further reduced the assembly degree of difficulty of impeller 5 axis centering.

According to one embodiment of the present invention, the impeller 5 is connected to the shaft sleeve 7 through a transmission shaft (not shown in the figures), that is, the transmission shaft is arranged through the center of the impeller 5, and the transmission shaft passes through the assembly hole on the second side plate 3 and is matched in the shaft hole 71 of the shaft sleeve 7. The transmission shaft may be a separate part, or the transmission shaft may be integrally formed with the impeller 5, and the present invention is not particularly limited herein.

As shown in fig. 10 and 11, according to an embodiment of the present invention, the sleeve 7 is fixed to the second side plate 3 by at least one fixing member (not shown), and the sleeve 7 is formed with a shaft hole 71 and at least one fixing hole 72, and the fixing member is loosely fitted to the fixing hole 72.

In this way, since the fixing member is in clearance fit with the fixing hole 72, the sleeve 7 can slide along the surface of the second side plate 3 during the process of being mounted on the second side plate 3, so that the condition that the axis of the impeller 5 is not aligned due to the machining error of the parts can be adjusted. It can be understood that the machining errors of the above components include machining errors of the shaft hole 71, the assembly hole on the second side plate 3, the impeller 5, the first side plate 2, the second side plate 3, or the back plate 1.

In one embodiment of the present invention, description will be made taking as an example that the machining error of the component includes the machining error of the shaft hole 71: if the shaft sleeve 7 generates a processing error in the processing process, so that the shaft hole 71 of the shaft sleeve 7 is not located at the center of the shaft sleeve 7, when the shaft sleeve 7 is fixed on the second side plate 3, the drive shaft of the impeller 5 may not be aligned with the shaft hole 71, so that an abnormal state of the impeller 5 during operation may be caused, and even the drive shaft of the impeller 5 may not be assembled into the shaft hole 71, at this time, because the present invention adopts a structure in which the fixing hole 72 and the fixing member are in clearance fit, a manufacturer may directly move the shaft sleeve 7 in the assembling process to align the shaft hole 71 and the drive shaft, so as to ensure smooth, stable and normal assembly between the shaft sleeve 7 and the impeller 5, and indirectly eliminate a negative influence of the processing error of the shaft hole 71 on the assembling process.

In an embodiment of the present invention, the fixing element may be a screw or a bolt, the fixing hole 72 may be a screw hole or a bolt hole, and the fixing element and the fixing hole 72 may be one, two or more sets corresponding to each other. Of course, other configurations and numbers of fasteners and fastener holes 72 are possible, and the utility model is not limited thereto, so long as a clearance fit between the fasteners and the fastener holes 72 is achieved.

In one embodiment of the present invention, the shaft sleeve 7 has a shaft hole 71 and more than three screw holes (e.g. four screw holes), and the diameter of the screw hole (i.e. the fixing hole 72) is much larger than the diameter of the mounting screw (i.e. the fixing element), so that the shaft sleeve 7 can move along the outer surface of the second side plate 3 during the mounting process, thereby adjusting the axial misalignment caused by the processing error of the hole position.

As shown in fig. 9, according to an embodiment of the present invention, the driving member 4 is fixed to the first side plate 2 by a cover case 42, and the cover case 42 covers the driving member 4. Like this, the stable installation of driving piece 4 not only can be realized to housing 42, can also cover and establish driving piece 4 in order to play isolated noise and alleviate the effect of vibration to the stability of complete machine has further been improved, and user's use experience has been improved. For example, the casing 42 is fixed to the outside of the first side plate 2 (i.e. the side of the first side plate 2 facing away from the impeller 5), and the shape of the casing 42 is adapted to the shape of the drive 4.

According to one embodiment of the utility model, the housing assembly further comprises a volute, the volute component being secured between the first side plate 2 and the second side plate 3, the volute component, the first side plate 2, the second side plate 3 and the back plate 1 together defining a flow path. The volute component may include one, two or more volutes, and in addition, the volute component may be fixed to the first side plate 2 and the second side plate 3 by pins, rivets or other connection structures, and the number of volutes and the fixing manner of the volute component are not particularly limited in the present invention.

As shown in fig. 10, according to an embodiment of the present invention, the volute component includes a first volute 61 and a second volute 62, the first volute 61 and the second volute 62 are both fixed between the first side plate 2 and the second side plate 3, and the first volute 61, the second volute 62, the first side plate 2, the second side plate 3 and the back plate 1 together define a flow channel. Wherein, the first volute 61 and the second volute 62 are arranged at intervals on different installation heights of the back plate 1.

In the present embodiment, the first volute 61 and the second volute 62 are directly fixed on the first side plate 2 and the second side plate 3, so that on one hand, a flow channel for flowing air can be defined between the first side plate 2 and the second side plate 3, and on the other hand, the first volute 61 and the second volute 62 can function as a reinforcing rib, so that the overall structure of the casing assembly is more reliable and stable. It can be understood that the back plate 1, the first side plate 2, the volute (including the first volute 61 and the second volute 62) and the second side plate 3 together form a closed connection structure, so that the casing assembly has a better effect of resisting the vibration of the impeller 5, and the vibration of the whole machine is reduced.

As shown in fig. 10, in an embodiment of the present invention, when the back plate 1 is fixed to a wall surface, the first scroll casing 61 is located above the second scroll casing 62, a left end of the first scroll casing 61 and a left end of the second scroll casing 62 are respectively fixed to the first side plate 2, and a right end of the first scroll casing 61 and a right end of the second scroll casing 62 are respectively fixed to the second side plate 3.

As shown in fig. 10, according to one embodiment of the present invention, the first scroll casing 61 has a first circular arc section 611, and the second scroll casing 62 has a second circular arc section 621. The flow channel comprises an arc-shaped first flow channel 91, a first flow channel 91 is formed between the first circular arc section 611 and the second circular arc section 621, and an impeller 5 is installed in the first flow channel 91.

Like this, the cooperation form between first circular arc section 611 and second circular arc section 621 and first curb plate 2 and the second curb plate 3 has formed the circular-arc enhancement fixed knot structure in both ends, can further improve housing assembly's stability to can further improve housing assembly and resist the effect of impeller 5 vibration, further alleviate the vibration of whole machine. In addition, the first circular arc segment 611 and the second circular arc segment 621 form a first flow channel 91 covering the impeller 5, provide a mounting space for the impeller 5, and may protect the impeller 5.

As shown in fig. 10, in an embodiment of the present invention, the first circular arc segment 611 is located above the second circular arc segment 621, the first circular arc segment 611 protrudes upward, the second circular arc segment 621 is recessed downward, and the central axis of the first flow channel 91 is parallel to or coincides with the central axis of the impeller 5.

As shown in fig. 10, according to an embodiment of the present invention, the first volute 61 has a sloped section 612, and the sloped section 612 extends obliquely in a direction away from the back plate 1 in a direction away from the impeller 5. The flow channels include a second flow channel 92, the second flow channel 92 is formed between the inclined section 612 and the back plate 1, and the flow area of the second flow channel 92 in the direction away from the impeller 5 is increased.

In this way, by designing the second flow passage 92 to have a divergent structure, the vortex generated during the flow of the air flow can be weakened, thereby avoiding collision loss of the air flow energy. In addition, the divergent second flow channel 92 can make the flow velocity of the air flow continuously decrease in the process of flowing to the outlet, so that the air flow is led out more smoothly and smoothly, and the use experience of the user is improved.

As shown in fig. 10, in one embodiment of the present invention, the upper half portion of the first scroll casing 61 forms an inclined section 612, the lower half portion of the first scroll casing 61 forms a first circular arc section 611, the inclined section 612 extends obliquely upward and toward a direction away from the back plate 1, and the first circular arc section 611 protrudes upward. The second scroll 62 forms a second circular arc section 621, and the second circular arc section 621 is recessed downward.

The flow passages comprise a first flow passage 91 and a second flow passage 92, a cylindrical first flow passage 91 is formed between the first circular arc section 611 and the second circular arc section 621, and a divergent second flow passage 92 is formed between the inclined section 612 and the back plate 1. The air inlet of the first flow channel 91 forms an air inlet of the whole flow channel, the first flow channel 91 is communicated with the second flow channel 92, and the air outlet of the second flow channel 92 forms an air outlet of the whole flow channel.

As shown in fig. 8 and 9, according to an embodiment of the present invention, the first side plate 2 is fixed to the back plate 1 by a first bracket 81, and the second side plate 3 is fixed to the back plate 1 by a second bracket 82. Therefore, the first side plate 2 and the second side plate 3 can be fixedly mounted with the back plate 1 respectively, and the stability of the shell assembly is improved.

As shown in fig. 8 and 9, in one embodiment of the present invention, the first bracket 81 and the second bracket 82 are both U-shaped brackets, the inner side wall of the first bracket 81 is fixed to the back plate 1, and the outer side wall of the first bracket 81 is fixed to the first side plate 2. The first bracket 81, the first side plate 2 and the back plate 1 can be fixed by welding, splicing, bonding and other structures, and the connection structure of the second bracket 82 is similar to that of the first bracket 81, and is not described herein again. Of course, the present invention is not particularly limited to the connection structure between the first bracket 81 and the second bracket 82, respectively, and other components.

According to an embodiment of the present invention, in a case where the housing assembly includes first and

second volutes

61 and 62, a thickness of first volute 61 and a thickness of second volute 62 are each smaller than a thickness of first bracket 81 and a thickness of second bracket 82, and a thickness of first bracket 81 and a thickness of second bracket 82 are each smaller than a thickness of first side plate 2 and a thickness of second side plate 3.

Thus, when there is a machining dimension deviation, the first volute 61 and the second volute 62 are most easily deformed, and the first side plate 2 and the second side plate 3 keep the original shapes, so that the assembly problem caused by the dimension variation due to machining errors is reduced. Meanwhile, the arrangement of the plates with different thicknesses at all levels can also play a role in vibration isolation.

According to one embodiment of the utility model, the first side plate 2, the second side plate 3, the impeller 5, the first volute 61 and the second volute 62 are all made of metal or non-combustible plastic, so that the flame retardant performance of the range hood is ensured. In addition, the first side plate 2 and the second side plate 3 have a certain height relative to the cooking bench, so that the installation requirement of the cooking range can be met.

According to an embodiment of the utility model, when the impeller 5 is made of injection molding material, the impeller 5 can adopt a structural form of inclined blades, blades which are circumferentially non-uniformly distributed and blades with staggered blade sections, so that the problem of aerodynamic squeal generated by the coupling action of the through-flow impeller 5 and the volute can be relieved under the condition of high resistance.

According to an embodiment of the present invention, at least one of the smoke inlet 001, the flow channel and the smoke outlet 002 is provided with a filtering material (not shown in the figure), so that the smoke inhaled into the cigarette machine is purified by filtering with the filtering material, and the airflow discharged from the smoke outlet 002 can be added into the indoor air circulation again to play a role of purifying the indoor air, thereby realizing the internal circulation process of the air.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the utility model. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. A range hood, comprising:

2. The machine of claim 1, wherein said smoke inlet extends from said mounting end of said smoke holding plate toward the bottom of said housing assembly, and said smoke inlet is an arcuate smoke inlet;

an impeller is installed in the flow channel, the opening angle of the smoke inlet relative to the rotation center of the impeller is a, wherein a is more than or equal to 70 degrees and less than or equal to 150 degrees.

3. The cigarette machine as claimed in claim 1, wherein in the cigarette-holding state, the cigarette-holding plate is horizontally disposed or obliquely extends downward obliquely.

4. A machine as claimed in claim 3, wherein in said cigarette gathering state, the angle between said cigarette gathering plate and the horizontal plane is b, wherein b is greater than or equal to 0 ° and less than or equal to 20 °.

5. A machine as claimed in claim 3, wherein in said smoke-gathering condition, the distance between the mounting end of said smoke-gathering plate and said smoke inlet is not more than 5 mm.

6. The machine of claim 1, wherein in said resting state, said cigarette holding panel is disposed in abutment with said abutment surface of said housing assembly;

7. A machine as claimed in any one of claims 1 to 6, wherein said housing assembly comprises a back panel, a first side panel and a second side panel, said first and second side panels being parallel to each other and respectively secured to the same side of said back panel;

8. The machine of claim 7, wherein the cigarette gathering plate is mounted on the first side plate and/or the second side plate by a rotating connecting part, the rotating connecting part comprises a first hinge and a second hinge, and the first hinge is fixed on the first side plate or the second side plate;

one end of the second hinge is rotatably connected with the first hinge, and the other end of the second hinge penetrates through the avoiding hole of the shell assembly and is fixedly connected with the mounting end of the cigarette collecting plate.

9. A machine as claimed in claim 8, wherein a damping connection is provided between the housing assembly and the smoke gathering plate.

10. The machine of claim 7, wherein the housing assembly further comprises a first volute and a second volute, each of the first volute and the second volute being secured between the first side plate and the second side plate, the first volute, the second volute, the first side plate, the second side plate, and the back plate collectively defining the flow path.

11. The machine of claim 10, wherein the first volute has a first arc segment and the second volute has a second arc segment;

12. The machine of claim 11, wherein said first volute further has an inclined section transitionally connected to said first circular arc section; the inclined section extends obliquely in a direction away from the back plate in a direction away from the impeller;

the flow channel comprises a second flow channel, the second flow channel is formed between the inclined section and the back plate, and the flow area of the second flow channel in the direction far away from the impeller is increased continuously.

13. A machine as claimed in claim 7, wherein said first side panel is secured to said back panel by a first bracket and said second side panel is secured to said back panel by a second bracket.