CN215597368U - Smoke machine - Google Patents

Abstract

The application relates to household electrical appliances technical field, discloses a cigarette machine includes: casing, flexible wind channel, fan and driving motor. A negative pressure cavity is arranged inside the shell; one end of the telescopic air duct is arranged in the negative pressure cavity, and the other end of the telescopic air duct can extend out of or retract into the negative pressure cavity; the fan is arranged in the negative pressure cavity and comprises a volute and a movable volute tongue, the volute is provided with a first air outlet and a second air outlet, and one end of the movable volute tongue is rotatably connected with the inner wall of the volute on one side of the second air outlet through a rotating shaft; the driving motor is connected with the rotating shaft and can drive the movable volute tongue to rotate. In this application, avoided complicated flue overall arrangement to set up, simplified the flue structure, the installation of being convenient for can reduce the holistic volume of cigarette machine, the hidden installation of the cigarette machine of being convenient for to can effectively reduce the negative pressure in the kitchen, promote the oil absorption cigarette ability.

Description

Smoke machine

Technical Field

The application relates to the technical field of household appliances, for example to a cigarette machine.

Background

At present, the cigarette machine has become the essential household electrical appliances in people's life, discharges the oil smoke in the kitchen through the cigarette machine, can make the environment in the kitchen cleaner, is favorable to user's healthy, consequently improves the problem that the oil absorption cigarette efficiency of cigarette machine made the field need solve always, especially in the relatively narrow space of kitchen, because inhaling fast of cigarette machine can cause the interior negative pressure that produces of kitchen, and then reduces the oil absorption cigarette efficiency of cigarette machine.

The smoke exhaust ventilator has the advantages that the fresh air is introduced into a kitchen or the smoke channel of the smoke exhaust ventilator is improved in the related technology, so that part of oil smoke is discharged into the kitchen again after being filtered and purified to reduce negative pressure in the kitchen, the effect of improving the efficiency of oil smoke absorption is achieved, however, the two types of smoke channels are required to be arranged, the structure is complex, the space in the kitchen is occupied greatly, and the smoke exhaust ventilator is not convenient to hide and install.

Therefore, how to simplify the flue structure, the whole hidden installation of the range hood is convenient, the negative pressure in the kitchen can be reduced, the oil smoke suction efficiency is improved, and the problem to be solved at present is solved urgently.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a range hood to avoid complicated flue overall arrangement setting, simplify the flue structure, the installation of being convenient for can effectively reduce the negative pressure in the kitchen, promotes the oil absorption cigarette ability of range hood.

In some embodiments, a range hood comprises: casing, flexible wind channel, fan and driving motor. A negative pressure cavity is arranged inside the shell; one end of the telescopic air duct is arranged in the negative pressure cavity, and the other end of the telescopic air duct can extend out of or retract into the negative pressure cavity; the fan is arranged in the negative pressure cavity and comprises a volute and a movable volute tongue, the volute is provided with a first air outlet and a second air outlet, and one end of the movable volute tongue is rotatably connected with the inner wall of the volute on one side of the second air outlet through a rotating shaft; the driving motor is connected with the rotating shaft and can drive the movable volute tongue to rotate.

The cigarette machine that this disclosed embodiment provided can realize following technological effect:

through the improvement to the fan structure, set up two air outlets on the fan, can be with intercommunication in second air outlet wherein and the kitchen, it is rotatory to drive movable spiral tongue through the motor, adjust the amount of wind that blows to the second air outlet through movable spiral tongue, and then adjust the amount of wind in the interpolation kitchen, adjust the negative pressure in the kitchen, play the effect that reduces negative pressure in the kitchen, directly improve the fan structure in this scheme, make the second air outlet that is used for in the fan to mend the wind in the kitchen direct with the kitchen in the intercommunication, complicated flue overall arrangement setting has been avoided, simplify the flue structure, be convenient for install, can reduce the holistic volume of cigarette machine, be convenient for the hidden installation of cigarette machine, and can effectively reduce the negative pressure in the kitchen, promote the oil smoke absorption ability.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

figure 1 is a schematic diagram of the structure of one cigarette machine provided by embodiments of the present disclosure;

FIG. 2 is a schematic view of a movable tongue according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a locking mechanism provided by embodiments of the present disclosure;

FIG. 4 is a cross-sectional view of a wind turbine provided in accordance with embodiments of the present disclosure;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic structural diagram of a wind turbine provided in the embodiments of the present disclosure;

FIG. 7 is a partial schematic view of an inner sidewall of the volute at a second air outlet provided by embodiments of the present disclosure;

figure 8 is a schematic diagram of another cigarette machine provided by embodiments of the present disclosure;

FIG. 9 is a schematic structural diagram of a purge mechanism provided in accordance with an embodiment of the present disclosure;

FIG. 10 is a schematic structural view of the interior of a wind compensating channel provided by the embodiment of the present disclosure;

figure 11 is a schematic diagram of another cigarette machine configuration provided by embodiments of the present disclosure;

FIG. 12 is a schematic structural diagram of a drive mechanism provided by an embodiment of the present disclosure;

figure 13 is a schematic diagram of another cigarette machine configuration provided by embodiments of the present disclosure;

FIG. 14 is a schematic view of a connection between a telescopic duct and a weight according to an embodiment of the present disclosure;

figure 15 is a front elevation view of one cigarette machine provided by embodiments of the present disclosure;

figure 16 is a side view of a machine provided by embodiments of the present disclosure.

Reference numerals:

100. a housing; 101. a negative pressure chamber; 102. a wind supplementing channel; 200. a telescopic air duct; 201. a smoking port; 202. a smoke baffle; 300. a fan; 301. a volute; 302. a centrifugal impeller; 303. a first air outlet; 304. a second air outlet; 305. fixing the volute tongue; 306. a guard ring; 307. a limiting groove; 308. a movable volute tongue; 309. a rotating shaft; 310. fixing grooves; 311. a drive motor; 312. a locking mechanism; 313. an annular tooth; 314. positioning teeth; 315. a limiting bulge; 400. a purification mechanism; 401. a fume filtration device; 402. a peculiar smell removing device; 403. a filter element; 404. a microbial treatment device; 405. collecting tank; 406. a culture dish; 500. a drive mechanism; 501. a motor; 502. a bar-shaped tooth; 503. an output shaft; 504. a gear; 600. a pulley; 601. a rope; 602. a first wheel; 603. a second wheel; 700. and a balancing weight.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in connection with fig. 1-7, embodiments of the present disclosure provide a range hood comprising: the air conditioner comprises a shell 100, a telescopic air duct 200, a fan 300 and a driving motor 311. A negative pressure cavity 101 is arranged inside the shell 100; one end of the telescopic air duct 200 is arranged in the negative pressure cavity 101, and the other end can extend out of or retract into the negative pressure cavity 101; the fan 300 is arranged in the negative pressure cavity 101 and comprises a volute 301 and a movable volute tongue 308, the volute 301 is provided with a first air outlet 303 and a second air outlet 304, and one end of the movable volute tongue 308 is rotatably connected with the inner wall of the volute 301 on one side of the second air outlet 304 through a rotating shaft 309; the driving motor 311 is connected to the rotating shaft 309 and can drive the movable volute tongue 308 to rotate.

Adopt the cigarette machine that this disclosed embodiment provided, through the improvement to fan 300 structure, set up two air outlets on fan 300, can be with second air outlet 304 wherein and kitchen interior intercommunication, it rotates to drive movable spiral tongue 308 through the motor, adjust the amount of wind that blows to second air outlet 304 through movable spiral tongue 308, and then adjust the amount of wind of mending in the kitchen, adjust the negative pressure in the kitchen, play the effect that reduces the interior negative pressure of kitchen, direct in this scheme improves fan 300 structure, the second air outlet 304 that is used for mending wind in the kitchen among the messenger fan 300 is direct with kitchen interior intercommunication, complicated flue overall arrangement setting has been avoided, simplify the flue structure, and the installation of being convenient for can reduce the holistic volume of cigarette machine, and can effectively reduce the negative pressure in the kitchen, promote the oil absorption cigarette ability.

Optionally, the width of the movable volute tongue 308 is the same as the width of the interior of the volute 301. Therefore, the gap between the movable volute tongue 308 and the inner wall of the volute 301 can be reduced, the air guiding performance of the movable volute tongue 308 is improved, airflow can intensively flow to the second air outlet 304 under the dredging effect of the movable volute tongue 308, and the flowing stability of the air in the fan 300 is improved.

Optionally, the side of the movable volute tongue 308 is provided with a sealing edge. Therefore, the sealing performance between the movable volute tongue 308 and the inner wall of the volute 301 is better, on one hand, the air guide performance of the movable volute tongue 308 is improved, on the other hand, unnecessary noise generated by airflow flowing through a gap can be reduced, in addition, the side edge of the movable volute tongue 308 is contacted with the inner wall of the volute 301 through the sealing edge covering, a fixing effect is formed on the movable volute tongue 308, the stability of the movable volute tongue 308 is improved, and the noise generated by the vibration of the movable volute tongue 308 is reduced.

Optionally, a locking mechanism 312 is further disposed on the rotating shaft 309, and the locking mechanism 312 is controlled to unlock when the driving motor 311 is started and lock the rotating shaft 309 when the driving motor 311 is stopped. Therefore, the rotating shaft 309 can be locked after the driving motor 311 adjusts the movable volute tongue 308 to a proper position, so that the position of the movable volute tongue 308 is kept fixed, and the change of the position of the movable volute tongue 308 caused by wind pressure is prevented, and further the normal air outlet is influenced.

Optionally, the locking mechanism 312 comprises: an annular tooth 313 and a positioning tooth 314. The annular tooth 313 is fixedly arranged on the rotating shaft 309; the positioning tooth 314 is connected to a power unit and it engages the annular tooth 313 in the case of the first position and disengages the annular tooth 313 in the case of the second position.

Optionally, a reinforcing rib is disposed on the movable volute tongue 308, and one end of the reinforcing rib is connected to the rotating shaft 309. Therefore, the stability of the connection between the movable volute tongue 308 and the rotating shaft 309 can be improved, the position of the movable volute tongue 308 can be better fixed, the stability of the movable volute tongue 308 is improved, and the movable volute tongue 308 is prevented from shaking in airflow to cause airflow disorder and generate extra noise.

Optionally, the second air outlet 304 is an opening opened on the arc-shaped sidewall of the scroll 301, and the movable tongue 308 is a baffle structure capable of covering the second air outlet 304. Like this, the second air outlet 304 is seted up with on the arc lateral wall of spiral case 301, can directly form the air-out in second air outlet 304 department under the condition that centrifugal impeller 302 drove the air current, simplify the air-out structure, and activity spiral shell tongue 308 can cover second air outlet 304, close second air outlet 304, can directly close second air outlet 304 under the condition that need not carry out the tonifying wind in the kitchen, directly discharge the oil smoke from first air outlet 303, it is more convenient high-efficient to the emission of oil smoke, and be the activity spiral shell tongue 308 of baffle structure, can not form the air current after covering second air outlet 304 and hinder, and have better water conservancy diversion effect under the condition that incompletely covers second air outlet 304, can be with better second air outlet 304 department that leads to of air current, be favorable to controlling the air output of second air outlet 304.

It is understood that the arcuate sidewall of volute 301 refers to the sidewall of the circumference of volute 301.

Optionally, the inner side of the arc-shaped sidewall of the volute 301 at the periphery of the second air outlet 304 is provided with a fixing groove 310, and the shape of the fixing groove 310 is the same as that of the movable volute tongue 308. Therefore, the movable volute tongue 308 can be just embedded into the fixing groove 310 under the condition that the second air outlet 304 is completely covered, the movable volute tongue 308 can be better fixed, meanwhile, the movable volute tongue 308 is partially or completely retracted into the fixing groove 310, the wind resistance generated by the movable volute tongue 308 is reduced, and the overall working efficiency of the fan 300 is improved.

Optionally, the movable volute tongue 308 is of an arc-shaped baffle structure, and the arc of the baffle structure is the same as the arc of the arc-shaped side wall of the volute 301. Therefore, the radian of the movable volute tongue 308 is the same as that of the arc-shaped side wall of the volute 301, so that the movable volute tongue 308 can be better attached to the arc-shaped side wall of the volute 301, the second air outlet 304 is sealed, the wind resistance generated by the movable volute tongue 308 is reduced, the power of the fan 300 is kept, and the oil smoke suction capacity is further improved.

Optionally, one end of the movable volute tongue 308 is in a rounded chamfer structure. Thus, the air flow can rapidly pass through one end of the movable volute tongue 308 when the end faces the wind, wind resistance is reduced, and the movable volute tongue 308 is prevented from vibrating under the blowing action of strong air flow due to the fact that the air flow blows to the end, the stability of the air flow is affected, and extra noise is generated.

Optionally, the thickness of the movable volute tongue 308 is greater than or equal to one-half of the thickness of the arc-shaped sidewall of the volute 301 and less than or equal to twice the thickness of the arc-shaped sidewall of the volute 301. Therefore, the thickness of the movable volute tongue 308 is set within a reasonable range, the movable volute tongue 308 is prevented from being too large, and an excessive part is exposed in an air duct in the volute 301 under the condition of closing the second air outlet 304 to generate larger wind resistance to influence the working efficiency of the fan 300, and the movable volute tongue 308 is also prevented from being too small to generate vibration in the process of blowing air flow at a high speed to cause extra noise.

Optionally, the movable volute tongue 308 is made of a high hardness material. For example, a pig iron material may be used. Therefore, the material with higher hardness is not easy to vibrate under the action of the airflow, and the noise generated by vibration can be reduced.

Optionally, the positions of the first air outlet 303 and the second air outlet 304 are symmetrically arranged about the volute 301. Like this, the wind path overall arrangement after fan 300 installs of being convenient for, first air outlet 303 can upwards directly upwards discharge the oil smoke, and sets up downwards rather than the second air outlet 304 that the symmetry set up, can make inside partial air current direct entering kitchen of circulation downwards to the downward replenishment reduces the negative pressure of lampblack absorber downside that can be quick, promotes the oil absorption cigarette efficiency of lampblack absorber during operation.

Optionally, a distance between the leeward end of the first air outlet 303 and the second air outlet 304 is less than or equal to a distance between the windward end of the first air outlet 303 and the second air outlet 304. Therefore, more air flow can be discharged through the second air outlet 304, the amount of air supply to the kitchen is increased, the negative pressure in the kitchen can be reduced more efficiently, and the oil smoke suction capacity is improved.

Optionally, a fixed volute tongue 305 is further arranged in the volute 301, and the distance between the fixed volute tongue 305 and the movable volute tongue 308 on the volute 301 along the rotation direction of the centrifugal vane is greater than or equal to half of the circumference of the volute 301. Therefore, the airflow can be guided to the first air outlet 303 through the fixed volute tongue 305 and discharged from the first air outlet 303, and the distance between the fixed volute tongue 305 and the movable volute tongue 308 in the rotating direction of the centrifugal impeller 302 is greater than or equal to half of the perimeter of the volute 301, so that the movable volute tongue 308 can be positioned at the windward end of the fixed volute tongue 305, and because the movable volute tongue 308 can cut off the airflow positioned at the windward end and enable the airflow to pass through the second air outlet 304, the longer the distance between the windward ends of the movable volute tongue 308 is, the larger the air output quantity can pass through the second air outlet 304, the air output quantity of the second air outlet 304 can be increased through the position of the movable volute tongue 308, the air supplementing capability is improved, the effect of reducing the negative pressure of a kitchen is better achieved, and the oil smoke suction capability is improved.

It is understood that the distance between the fixed volute tongue 305 and the movable volute tongue 308 refers to the distance from the connecting point of the movable volute tongue 308 and the volute 301 to the fixed volute tongue 305 along the arc-shaped sidewall of the volute 301.

Optionally, the connection point of the movable volute tongue 308 and the volute 301 is located on the side of the leeward end of the second air outlet 304. Therefore, when the movable volute tongue 308 is opened, the airflow is guided to the second air outlet 304 through the movable volute tongue 308 more smoothly, and the airflow flows more smoothly.

Optionally, a guard ring 306 is disposed on one side of the outer annular surface of the centrifugal impeller 302, a limit groove 307 is disposed on the guard ring 306, and a limit protrusion 315 adapted to the fixed groove 310 is disposed on the other end of the movable volute tongue 308. Therefore, under the condition that the movable volute tongue 308 is completely opened relative to the second air outlet 304, the movable volute tongue 308 can be in contact with the guard ring 306, damage caused by collision between the movable volute tongue 308 and the centrifugal impeller 302 is avoided under the action of the guard ring 306, the other end of the movable volute tongue 308 is limited and fixed through the limiting groove 307 on the guard ring 306, the stability of the movable volute tongue 308 in the working process can be improved, the influence of air flow on the movable volute tongue 308 is reduced, and the overall working efficiency of the fan 300 is kept.

Optionally, a guard ring 306 is provided at an edge position of the outer annular surface of the centrifugal impeller 302. Thus, the guard ring 306 is disposed at the edge of the centrifugal impeller 302 to protect the centrifugal impeller 302, and prevent the guard ring 306 from causing wind resistance to the wind output from the centrifugal impeller 302 and affecting the working efficiency of the fan 300.

Alternatively, the guard rings 306 are provided in pairs and on the edges of both sides of the outer annular surface of the centrifugal impeller 302, respectively. Thus, the guard rings 306 are arranged on the two sides of the centrifugal impeller 302, so that the centrifugal impeller 302 can be protected from the two sides of the centrifugal impeller 302, the centrifugal impeller 302 is further protected, the two sides of the movable volute tongue 308 can be supported, and the movable volute tongue 308 is more stably fixed.

Optionally, the guard ring 306 is fixedly connected to the inner wall of the volute 301. In this way, the position of the guard ring 306 can be kept fixed, so as to better protect the centrifugal impeller 302, and meanwhile, the movable volute tongue 308 can be better manufactured, so that the stability of the movable volute tongue 308 is kept.

As shown in fig. 8-10, in some embodiments, the blower 300 is disposed in the negative pressure chamber 101, and the air supplement channel 102 is disposed at the lower side thereof, and the second air outlet 304 of the blower 300 is communicated with the air supplement channel 102. Therefore, the air outlet of the second air outlet 304 of the fan 300 enters the kitchen through the air supplementing channel 102, the negative pressure in the kitchen is adjusted, the negative pressure in the kitchen is effectively reduced, and the oil smoke absorption capacity of the range hood is improved.

Optionally, the width of the air supplement channel 102 is the same as the width of the range hood. Therefore, the air outlet width of the air supplement is the same as the width of the range hood, air outlet in an air curtain form is formed, a certain blocking effect is achieved on oil smoke, and the oil smoke absorption efficiency of the range hood is improved.

Optionally, the second air outlet 304 is communicated with the air supplement channel 102 through an air expansion channel. In this way, the airflow blown out from the second air outlet 304 is expanded through the air expansion channel, so that the airflow can uniformly pass through the air supplement channel 102, and the uniformity and stability of the whole air supplement airflow are improved.

Optionally, a purification mechanism 400 is disposed within the make-up air channel 102. Like this, the cigarette machine is in during operation with the oil smoke suction fan 300, and some enter the air supplement channel 102 through second air outlet 304, because the oil stain and impurity etc. that contain in the air current of second air outlet 304 are more, can filter and purify this part air current through purification mechanism 400, keep the cleanness of the air current of mending in the kitchen again, prevent that the oil smoke from flowing back into the kitchen, cause the air circumstance in the kitchen relatively poor, influence user's health.

Optionally, the purge mechanism 400 comprises: a lampblack filtering device 401 and a peculiar smell removing device 402. The odor removing device 402 is disposed below the soot filter 401. Therefore, the air supplementing air flow is filtered through the filtering device, impurities such as oil stains and the like contained in the air supplementing air flow are removed, the cleanness of the air supplementing air flow is kept, and meanwhile, the peculiar smell in the air flow is eliminated through the peculiar smell removing device 402, and the freshness of the air in a kitchen is kept. The odor removing device 402 may be an activated carbon adsorption net, and the odor removing operation is performed on the air flow passing through the odor removing device 402 by using the principle that activated carbon adsorption has odor removing function.

Optionally, a filter core 403 and a microorganism processing device 404 are arranged in the lampblack filtering device 401. In this way, the airflow discharged from the second outlet 304 is filtered by the filter element 403, so that the oil smoke and some harmful impurities are filtered out, and the oil stain and the impurities are decomposed into harmless substances by the microbial treatment device 404, so that the filtered oil stain and impurities are prevented from being mixed into the airflow again to enter the kitchen, and the cleanness of the air in the kitchen can be maintained.

Optionally, the filter core 403 is a condensation filter core 403, and the condensation filter core 403 includes a condensation baffle and a refrigeration portion disposed in the condensation baffle. Like this, filter core 403 can carry out condensation deposition to oil stain and some harmful impurity through the condensation, improves the filter effect to can cool down the air current that filters core 403 through the condensation, prevent that the air current high temperature from leading to the microorganism death in the microbial treatment device 404.

Optionally, the refrigeration part is used for semiconductor refrigeration. Like this, the less installation in the cigarette machine of being convenient for of semiconductor refrigeration volume to can refrigerate fast, more accord with the cigarette machine and need get into operating condition's demand fast when using.

Alternatively, the microorganism processing apparatus 404 is disposed at the lower side of the filter core 403, and can collect oil stains, impurities, and the like filtered on the filter core 403. Therefore, the impurities such as oil stains filtered by the filter core 403 can better enter the microbial treatment device 404, and the filtered oil stains and impurities are decomposed by the microbial treatment device 404.

Optionally, the microbial treatment apparatus 404 comprises: a collection tank 405 and a petri dish 406. The culture dish 406 may be disposed within the holding tank 405 in an assembled manner, with the aqueous solution disposed within the holding tank 405. Like this, impurity such as oil stain can be dissolved in the aqueous solution in collecting vat 405 to by the catalytic enzyme catalytic decomposition that the microorganism produced, what culture dish 406 can assemble sets up in collecting vat 405, can regularly change culture dish 406, keeps having sufficient microorganism in the collecting vat 405, keeps the decomposition efficiency to impurity such as oil stain.

As shown in connection with figures 11-12, in some embodiments, the cigarette maker further comprises: a drive mechanism 500. The driving mechanism 500 is connected to the telescopic air duct 200, and can drive the telescopic air duct 200 to extend out of or retract into the negative pressure chamber 101. Like this, adopt actuating mechanism 500 directly to be connected with flexible wind channel 200, drive flexible wind channel 200, can move about the flexible wind channel 200 of direct drive to actuating mechanism 500 can keep certain fixed power to flexible wind channel 200, prevents that flexible wind channel 200 from receiving external force when using and taking place to rock, influences the normal work in flexible wind channel 200, and then can improve the stability that the cigarette machine used.

Optionally, the drive mechanism 500 comprises: a motor 501 and bar teeth 502. The motor 501 is provided with an output shaft 503, and the output shaft 503 is provided with a gear 504; the bar-shaped teeth 502 are connected to the inner side wall of the negative pressure chamber 101 and are engaged with the gear 504. Thus, an output shaft 503 is arranged on the motor 501, a gear 504 is arranged on the output shaft 503, the bar-shaped teeth 502 are meshed with the gear 504 and connected, the gear 504 is driven to rotate by the rotation of the output shaft 503 of the motor 501, the gear 504 is enabled to move relative to the bar-shaped teeth 502, and then the extension or retraction of the telescopic air duct 200 is driven, the driving mechanism 500 is more stable and reliable, and can play a role in limiting speed when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101, the telescopic air duct 200 can move more stably, the telescopic air duct 200 can extend out of or retract into the negative pressure cavity 101 more stably, the bar-shaped teeth 502 are meshed with the gear 504, and can also carry out limiting protection when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101, and the telescopic air duct 200 can stay at a fixed position.

Optionally, the output shaft 503 penetrates through the motor 501, two ends of the output shaft are provided with a gear 504, and two strip-shaped teeth 502 are provided and are respectively arranged on two opposite side walls in the negative pressure cavity 101. Like this, output shaft 503 runs through motor 501, and its both ends all are equipped with gear 504, and two gear 504 can make the better atress in its both sides in flexible wind channel 200, and bar tooth 502 is equipped with two, sets up respectively on negative pressure chamber 101 relative both sides wall, and two gear 504 on the output shaft 503 correspond two bar teeth 502 respectively, and gear 504 all meshes with bar tooth 502, and the flexible wind channel 200 of drive that can be more stable stretches out or retracts into in the negative pressure chamber 101.

Alternatively, the telescopic duct 200 is symmetrically provided with shaft supporting seats at both sides, and the output shaft 503 is rotatably connected with the shaft supporting seats. Thus, the output shaft 503 can be fixed by the shaft support seat, the stability of the output shaft 503 is improved, and the telescopic air duct 200 can be driven to extend out of or retract into the negative pressure cavity 101 more stably.

As shown in connection with figures 13-14, in some embodiments, the cigarette maker further comprises: pulley 600 and counterweight 700. The pulley 600 is disposed above the inside of the case 100; clump weight 700 is connected to telescopic duct 200 through rope 601, and rope 601 passes around pulley 600. Thus, the two ends of the rope 601 are respectively connected with the telescopic air duct 200 and the counterweight block 700, the telescopic air duct 200 at one end of the rope 601 can extend out of or retract into the negative pressure cavity 101 through the rope 601, the counterweight block 700 at the other end of the rope 601 uses the counterweight block 700 to counterbalance the telescopic air duct 200, meanwhile, when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101, the counterweight block 700 uses the weight of the counterweight block to provide a pulling force for the telescopic air duct 200, the pulley 600 is arranged above the inner part of the shell 100, and the rope 601 bypasses the pulley 600, when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101, the friction force and the resistance generated by the movement of the rope 601 can be reduced, by the design, the force required when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101 can be greatly reduced, the cost is further reduced, and the energy consumption required when the telescopic air duct 200 extends out of or retracts into the negative pressure cavity 101 is greatly reduced, the range hood is more energy-saving and environment-friendly.

Optionally, the weight block 700 is made of a solid metal material. Like this, balancing weight 700 is solid metal material, can reduce balancing weight 700's volume in the at utmost when guaranteeing that balancing weight 700 has sufficient weight, reduces balancing weight 700 occupation space in negative pressure chamber 101, improves space utilization, makes cigarette machine overall structure compacter.

Optionally, the surface of the weight block 700 is provided with an oil smoke prevention coating. Like this, balancing weight 700 surface is equipped with grease proofing cigarette coating, has reduced the oil smoke to balancing weight 700 corruption, adhesion scheduling problem, prevents because the oil smoke leads to two balancing weights 700 quality inequality to it is different to make it produce the pulling force to flexible wind channel 200 both ends, the slope that leads to, skew scheduling problem.

Optionally, two sets of pulleys 600 are disposed on two sides of the upper portion inside the housing 100, each set of pulleys 600 includes a first pulley 602 and a second pulley 603, the first pulley 602 is disposed above the telescopic air duct 200, the second pulley 603 is disposed above the weight block 700, and the rope 601 is wound around the upper sides of the first pulley 602 and the second pulley 603. Like this, casing 100 is inside to be equipped with two sets of pulleys 600, and every group pulley 600 is equipped with two, and rope 601 all walks around from two 600 upside pulleys, and every group sets up the area of stress of the increase rope 601 that two pulleys 600 can be better, and is more stable when letting rope 601 drive flexible wind channel 200 and balancing weight 700 motion.

Optionally, the first wheel 602 and the second wheel 603 are disposed on the same horizontal plane. Like this, rope 601 passes first round 602 and second round 603, and balancing weight 700 and flexible wind channel 200 are connected respectively to both ends, and first round 602 and the same horizontal plane setting of second round 603 can provide two even stress points for rope 601, can also reduce first round 602 and the longitudinal space of second round 603 in negative pressure chamber 101 simultaneously and occupy.

Optionally, a vertical tangent of first wheel 602 passes through the connection point of tether 601 and telescoping wind tunnel 200. Therefore, the rope 601 is kept vertical and is vertically connected with the telescopic air duct 200, so that better force is applied to the telescopic air duct 200, and the telescopic air duct 200 can be more stably extended out of or enter the negative pressure cavity 101.

Optionally, a vertical tangent of second wheel 603 passes through the point of connection of rope 601 and counterweight 700. Therefore, the rope 601 is kept vertical and is vertically connected with the balancing weight 700, so that better tension generation of the balancing weight 700 is facilitated, and the telescopic air duct 200 can be more stable when extending out or entering the negative pressure cavity 101.

As shown in fig. 15-16, optionally, a smoke suction port 201 is provided at the front side of the lower portion of the telescopic air duct 200, and a smoke barrier 202 is rotatably mounted on the side of the smoke suction port 201. Like this, when the cigarette machine starts, flexible wind channel 200 stretches out from negative pressure cavity 101, and the cigarette board 202 that the side stretches out back in flexible wind channel 200 opens, and produced oil smoke when keeping off cigarette board 202 can effectually block the culinary art improves the absorption efficiency of oil smoke to sight when can prevent that the oil smoke from hindering the user culinary art.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. A range hood, comprising:

a housing, inside which a negative pressure cavity is arranged;

one end of the telescopic air duct is arranged in the negative pressure cavity, and the other end of the telescopic air duct can extend out of or retract into the negative pressure cavity;

the fan is arranged in the negative pressure cavity and comprises a volute and a movable volute tongue, a first air outlet and a second air outlet are formed in the volute, and one end of the movable volute tongue is rotatably connected with the inner wall of the volute on one side of the second air outlet through a rotating shaft;

and the driving motor is connected with the rotating shaft and can drive the movable volute tongue to rotate.

2. The machine as claimed in claim 1, wherein said spindle is further provided with a locking mechanism which is controlled to unlock in case of starting of said driving motor and to lock said spindle in case of stopping of said driving motor.

3. A machine as claimed in claim 2, wherein said locking mechanism comprises:

the annular tooth is fixedly arranged on the rotating shaft;

the positioning tooth is connected with a power device and is meshed with the annular tooth in the first position and is separated from the annular tooth in the second position.

4. The cigarette machine as claimed in claim 1, wherein the movable volute tongue is provided with a reinforcing rib, and one end of the reinforcing rib is connected with the rotating shaft.

5. The cigarette machine of claim 1, wherein the second air outlet is an opening formed in an arc-shaped side wall of the volute, and the movable volute tongue is a baffle structure capable of covering the second air outlet.

6. A machine as claimed in claim 5, wherein said movable volute tongue is of arcuate baffle-plate configuration and has an arc of the same arc as the arcuate side wall of said volute.

7. A machine as claimed in any one of claims 1 to 6, wherein the positions of the first and second air outlets are symmetrically disposed about the volute.

8. A machine as claimed in any one of claims 1 to 6, further comprising:

a pulley disposed above an interior of the housing;

the balancing weight is connected with the telescopic air duct through a rope, and the rope bypasses the pulley.

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