CN218178980U - Multifunctional stove - Google Patents

Abstract

The utility model relates to a multifunctional stove, which comprises a stove body, a stove body and a stove body, wherein the stove body is provided with a cooking position for providing a plurality of heating food materials and a smoke inlet structure for providing an oil smoke inlet; a smoke guide device configured to have a certain smoke guide path for guiding the soot near the cooking position; a flue device in communication with the smoke intake structure and configured to have a smoke evacuation channel; the air baffle is arranged at the smoke inlet structure and is provided with a smoke exhaust near end close to the smoke exhaust channel and a smoke exhaust far end far away from the smoke exhaust channel; the wind shield is provided with an opening, the opening has an air exhaust area on the wind shield, the area of the opening on the unit area of the wind shield is defined as the unit air exhaust area, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the unit air exhaust area of the far end of the smoke exhaust. The utility model discloses a multifunctional stove compact structure can absorb the oil smoke that the culinary art in-process produced high-efficiently and balancedly.

Description

Multifunctional stove

Technical Field

The present application relates generally to kitchen cookers, and more particularly to a multi-function stove having both cooking and fume extraction functions.

Background

In commercial or other large-scale cooking applications, stoves with heating capabilities alone do not meet the full cooking needs. In commercial cooking occasions such as family dinner, hotel catering, roadside snack stalls and the like, the requirements of illumination, heat preservation, food material placement, oil smoke absorption, wind and rain shielding and the like are met. Chinese patent application 201420387982.X proposes a multifunctional cooking range integrating a cooking bench, an ice-cold storage cabinet, a locker, a canopy, etc. in one cooking device. However, such integration is only a simple stacking of a plurality of functional modules, and there is no matching relationship between the functional modules, especially no matching relationship of heat transfer, which is likely to cause waste of energy.

Cooking equipment such as current oven, hot spicy dip stove, face stove can produce a large amount of oil fumes at the in-process of culinary art, for reducing the oil fume, often can set up oil absorption cigarette device simultaneously under such culinary art occasion. Compared with the cooking operation table, the smoke inlet of the traditional upward-discharging type oil fume suction device is 80-100 cm higher, so that the height ensures enough operation space and the oil fume suction effect. The oil smoke generated by cooking is adsorbed on the pipe wall and the fan blade of the range hood, thick oil stains are often formed, the range hood is difficult to clean, the smoking efficiency of the range hood device is influenced for a long time, and the service life of the range hood device is shortened. In order to solve the attached problem of oil stain, chinese patent application 201610347271.3 provides a cleaning device is exempted from to fan runner is not stained with oil, and it sets up a water smoke device inside the lampblack absorber, before lampblack absorber inspiratory oil smoke contact casing and swiveling wheel, water smoke device lasts blowout water smoke particle, forms on the surface of swiveling wheel and the inner wall of casing in advance the water film layer to prevent the adhesion of oil smoke, this patent technique need increase extra water smoke device, improved the cost and improved whole oil absorption smoke device's design complexity, reduced the reliability of its operation. Chinese patent ZL201820073670.X sets up nanometer coating UGT on impeller and impeller shell, utilizes UGT, not be stained with the advantage of water and not be stained with oil, has reduced the inside oil smoke of lampblack absorber and has adhered to. However, the UGT nano coating has high cost and is difficult to maintain once falling off.

In addition, the existing oil smoke sucking device is usually of an updraft type, the smoke inlet of such an oil smoke sucking device protrudes outwards to form a 7-shaped structure, and because hot oil smoke is diffused upwards, the smoke inlet of the updraft type oil smoke sucking device can be arranged at a position close to the vertical position of the movement path of the oil smoke, so that the effect of blocking the oil smoke can be achieved, and therefore, the updraft type oil smoke sucking device can often achieve a better oil smoke sucking effect. Accordingly, the area and length of the oil path, the smoke suction port, and the like of the updraft type range hood are large, and miniaturization is difficult. In contrast, although the height of the smoke guiding device of the downdraft type lampblack absorber is 50-70 cm compared with the table top of the furnace body, the volume of the downdraft type lampblack absorber is relatively small, due to the limitation of height, the smoke inlet of the downdraft type lampblack absorber is difficult to be completely arranged on the moving path of the lampblack, and therefore, the effect of absorbing the lampblack by the downdraft type lampblack absorber is often poor.

In order to achieve the effects of safety, beauty, prevention of foreign matters and the like, a protective net is usually arranged at a smoke inlet of the range hood. For the downdraft type oil fume suction device, because the smoke suction port is arranged at a lower position, when cooking is carried out, the limbs of operators can easily touch the smoke inlet, and foreign matters can easily enter, therefore, for the downdraft type oil fume suction device, a protective net of the smoke inlet is often necessary. And the net mouth of the smoke inlet protective net of the downdraft type range hood is usually arranged more densely to prevent the entering of splashed oil drops, water drops and the like. However, the arrangement of the dense protective net at the smoke inlet greatly reduces the effective area of the smoke inlet, and further reduces the smoke suction effect of the downdraft type oil smoke device.

In the occasion of commercial kitchen range, the air intake of oil smoke absorption device often has certain length, leads to the negative pressure difference of air intake different positions, and the position negative pressure of keeping away from the fan often the undersize, causes the excessive of oil smoke easily.

In view of the above-mentioned problem that exists among the current cooking device, especially downdraft oil absorption fume sucking device's the problem that the smoking effect is relatively poor, the oil smoke is excessive, the utility model discloses it is special to provide the utility model.

SUMMERY OF THE UTILITY MODEL

In one embodiment, the present invention relates to a multi-functional stove, comprising a stove body having a cooking position for providing a plurality of heated food materials and a smoke inlet structure for providing an oil smoke inlet; a smoke guide configured to have a certain smoke guide path for guiding the soot near the cooking position; a flue device in communication with the smoke intake structure and configured to have a smoke evacuation channel; further comprising: the wind shield is arranged at the smoke inlet structure and is provided with a smoke discharge near end close to the smoke discharge channel and a smoke discharge far end far away from the smoke discharge channel; the wind shield is provided with an opening, the opening has an air exhaust area on the wind shield, the area of the opening on the unit area of the wind shield is defined as a unit air exhaust area, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the unit air exhaust area of the far end of the smoke exhaust.

Furthermore, the opening on the wind shield is a plurality of holes with different sizes, and the area of the hole close to the smoke exhaust channel on the wind shield is smaller than that of the hole far away from the smoke exhaust channel.

In another embodiment of the wind deflector, the openings in the wind deflector are a plurality of holes with the same size, and the distance between the holes close to the smoke evacuation channel is larger than the distance between the holes far away from the smoke evacuation channel.

As another embodiment of the wind deflector, the opening in the wind deflector is a strip-shaped hole, and the width of the strip-shaped hole near the smoke exhaust channel is smaller than the width of the strip-shaped hole far away from the smoke exhaust channel.

Further, the cooking position is configured to have a certain depth, and more than two heating devices are provided at the cooking position; the periphery of the cooking position is provided with a groove which forms a space for containing liquid.

Further, the cigarette feeding structure comprises a cigarette feeding port and a cigarette gathering part, and the cross section of the cigarette gathering part is in a shape of an inverted trapezoid with a large upper part and a small lower part.

Further, the smoke guide device comprises a vertical baffle and a transverse baffle; the vertical baffle is obliquely arranged, and the included angle between the vertical baffle and the horizontal plane is 65-85 degrees; the effective smoke guiding height of the vertical baffle is 35 cm-45 cm.

Furthermore, the transverse baffle is obliquely arranged, and the included angle between the transverse baffle and the horizontal plane is 3-33 degrees.

Furthermore, the smoke guide device also comprises a side baffle plate, and the side baffle plate extends from the position of the vertical baffle plate to the cooking position; the height of the side baffle plate is changed from the height of the vertical baffle plate to the cooking position.

In another embodiment, the present invention relates to a multi-functional stove comprising a stove body having a plurality of cooking positions for providing heated food material; a smoke guide configured to have a certain smoke guide path for guiding the soot near a cooking position of the oven body; a flue apparatus configured to have a smoke inlet structure providing a smoke inlet, the flue apparatus having a smoke evacuation channel in communication with the smoke inlet structure; the flue device still includes: the wind shield is arranged at the smoke inlet structure and is provided with a smoke discharge near end close to the smoke discharge channel and a smoke discharge far end far away from the smoke discharge channel; the wind shield is provided with an opening, the opening has an air exhaust area on the wind shield, the area of the opening on the unit area of the wind shield is defined as the unit air exhaust area, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the unit air exhaust area of the far end of the smoke exhaust.

The above summary does not include an exhaustive list of all aspects of the present invention. It is contemplated that the invention includes all systems and methods that can be practiced from all suitable combinations of the various aspects summarized above and disclosed in the detailed description below and particularly pointed out in the claims filed with this patent application. Such a combination has certain advantages not specifically recited in the above summary of the invention.

Drawings

Embodiments are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings in which like reference numerals refer to similar elements. It should be noted that embodiments referred to as "a" or "an" in this disclosure are not necessarily the same embodiment.

Figure 1 shows a schematic view of one embodiment of a multi-purpose furnace.

Fig. 2 shows a block diagram of the multifunctional furnace of fig. 1.

Fig. 3 is a view showing a smoke inlet structure, a flue device, and a negative pressure generating device of the multi-purpose furnace shown in fig. 1 and 2.

Figure 4 shows a schematic view of a simplified multifunction stove fitted with one embodiment of a wind deflector.

Fig. 5 shows a block diagram of a wind deflector of the multifunctional oven of fig. 4.

Fig. 6 shows a block diagram of a wind deflector of another embodiment.

Fig. 7 shows a block diagram of a wind deflector of another embodiment.

Figure 8 shows a schematic view of another embodiment of a multi-purpose furnace.

Figure 9 shows a simplified schematic diagram of the smoke inlet structure and part of the chimney means of the multi-function furnace of figure 8.

Figure 10 shows a schematic view of one embodiment of a smoke guide of a multi-function furnace.

Figure 11 shows a schematic view of another embodiment of a smoke guide of a multifunctional furnace.

Figure 12 shows a schematic view of another embodiment of a multifunction stove.

Fig. 13 shows a structure view of a wind deflector of the multifunctional oven in fig. 12.

Figure 14 shows a schematic view of another embodiment of a multi-purpose furnace.

Detailed Description

In this section, we will explain several embodiments of the invention with reference to the figures. Whenever the shapes, relative positions, and other aspects of the components described in the embodiments are not clearly defined, the scope of the present invention is not limited to only the components shown, which are for illustrative purposes only. Additionally, while numerous details are set forth, it is understood that some embodiments of the invention may be practiced without these details. In other instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Spatially related terms such as "under 8230," "under," "under 8230," "below 8230," "under 8230," "above 8230," "upper," and the like may be used herein for convenience of description to describe one element or feature's relationship to another element or elements or feature or features, as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "at 8230; \8230, below" can encompass both orientations at 8230; \8230, above and at 8230, below. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As used herein, the singular forms "a", "an", and the like are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

The terms "or" and/or "as used herein should be interpreted as being inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C. An exception to this definition will occur only when a combination of elements, functions, steps or acts are, to some extent, inherently mutually exclusive.

The term "connected" as used herein includes direct and indirect connections, which do not require physical contact between the parts to be connected, including snap-fit connections, screw connections, fastenerless connections, welding, riveting, integral forming, and the like. In the case of component fitting, the fit clearance includes a fit relationship such as clearance fit, transition fit, interference fit or variable clearance.

Referring to fig. 1, the definitions of various directions and positions of the multifunctional furnace mentioned herein are as follows: the direction L indicated by an arrow is defined as the "length direction", the direction W is defined as the "width direction", and the direction H is defined as the "height direction".

The smoke inlet structure mentioned herein has a certain length and different negative pressure values at different positions thereof. Referring to fig. 4, the end a is the end with larger negative pressure, and is defined as the "smoke evacuation proximal end"; the B end is the end with smaller negative pressure and is defined as the far end of smoke exhaust. Referring to fig. 13, in this structure, the smoke evacuation channel is disposed in the middle of the smoke intake structure, and therefore, the end a is the end with a larger negative pressure and is defined as the "smoke evacuation proximal end", and the ends B on both sides are the ends with a smaller negative pressure and are defined as the "smoke evacuation distal end".

Fig. 1 to 3 show a first embodiment of the multifunctional stove of the present invention.

The multifunctional oven 100 includes an oven body including a table top 101, a plurality of openings formed on the table top 101 to form cooking positions 110, and the cooking positions 110 are used for placing a cooking device to perform cooking operations. As an alternative embodiment, the table top 101 does not have an opening for placing a cooking device, and the cooking device is connected to the table top 101 in a plug-in manner.

The mesa 101 is made of stainless steel. The stainless steel material is beautiful and durable, and compared with aluminum, the stainless steel has more stable chemical property and is more beneficial to human health. As alternative embodiments, the table top 101 may be made of metal, glass, ceramic, marble, wood with surface treatment, or other materials.

The body of the multi-function furnace 100 further includes a front plate. In the present embodiment, the front panel includes a control panel 102 and a cabinet door 103. The control panel is provided with a man-machine interaction part 1021, the man-machine interaction part can be a mechanical key such as a dial button, a button or a knob, and can also be a touch key or a non-contact key, and the man-machine interaction part 1021 is used for controlling the work of one or more operation modules of the multifunctional furnace. As an alternative embodiment, the man-machine interaction part is not arranged on the front plate, but arranged on any one or more positions of the table top, the side plate, the rear plate and the like. As an optional implementation mode, an externalized human-computer interaction piece is not arranged, and an operator can control the work of one or more operation modules of the multifunctional furnace in a voice control mode, a remote control mode or the like.

The cabinet door 103 can be opened to provide the storage space inside the furnace body, and the design of the cabinet door can also be convenient for maintaining or repairing the internal structure of the multifunctional furnace.

The furnace body also comprises side plates 104, a back plate 105 and a bottom plate 106. In this embodiment, a negative pressure generator 140 is installed in the oven body, a smoke outlet 129 is provided in the side plate 104, and the cooking fumes are absorbed by the multifunctional oven and then discharged through the smoke outlet 129. As an optional embodiment, the negative pressure generating device is not disposed inside the furnace body of the multifunctional furnace, and the smoke outlet 129 may be connected to an external fan, a flue, an oil-water separator, a purifier, and the like. As an alternative embodiment, the smoke outlet can be arranged at any position of one or more positions of the table top, the front plate, the side plate, the back plate and the bottom plate. Particularly, the furnace body can be provided with no smoke outlet, the inside of the furnace body of the multifunctional furnace is provided with an oil smoke treatment device, and waste oil, waste water and the like brought by oil smoke are directly collected in the furnace body.

In this embodiment, the negative pressure generating device 140 and the electrical box 150 are fixed on the bottom plate. As an alternative embodiment, the negative pressure generating device, the electrical box and other functional structures can also be fixed to any position of the side plate, the back plate, even the back of the table top and the like.

The multifunctional furnace further comprises a base 107, the base 107 being connected to the base plate 106. The base 107 may be a fixed base. The base 107 may also be a mobile base including adjustable feet, rollers, etc. As an alternative embodiment, the base 107 can be switched between a fixed base and a movable base, such as adding a brake to the roller structure, and activating the brake when the multifunctional stove moves to a specific position to prevent the multifunctional stove from moving during operation. The connection between base and the furnace body includes fixed connection and detachable connection, and fixed connection's mode includes welding, riveting, integrated into one piece etc. can dismantle the connection and include buckle connection, spiro union etc..

In the present embodiment, a housing having a certain depth at the cooking position 110 to form a depressed cooking space 111 for installing a cooking appliance, a total of 6 cooking positions are formed in the cooking space 111. The cooking device is a soup stove, the stainless steel inner wall of the cooking device is of a certain depth, the space for containing food materials and liquid is formed, soup food materials such as noodles, rice noodles, wonton and spicy soup can be cooked, the grooves are formed in the periphery of the cooking position, the spaces for containing liquid are formed in the grooves, the liquid splashed in the soup stove can be collected, and the cooking position is convenient to clean. As an alternative embodiment, the cooking position may also be used to place one or more cooking devices including induction cookers, electric cookers, fryers, and broilers, and the specific cooking configuration may be one or more types including water tanks, heating plates, charcoal bins and grill nets, barbeque bars, and other types of cooking utensils. The heating part 112 is an electric heating tube, and the electric heating tube 112 contacts with the bottom of the cooking space 111 to convert electric energy into heat energy to cook food. As alternative embodiments, the heating portion 112 may include one or more of a gas burner, a natural gas burner, a charcoal silo, a heating coil, a microwave device, and other types of heating structures.

The smoke guide 120 is disposed higher than the top 101, and extends upward in the height direction of the oven body, for guiding the smoke generated at the cooking position 110. The smoke guide 120 is disposed above the smoke inlet 131, and the smoke guide and the smoke inlet are disposed near the cooking position 110. Lead cigarette device including erecting baffle 121, horizontal baffle 122, erect baffle 121 and set up along the direction of height, and extend certain distance, horizontal baffle 122 sets up and extends certain distance along width direction. An article shelf (not shown) can be arranged on the transverse baffle plate and can be used for placing articles such as seasonings, food materials, cash registers and the like. The vertical baffle 121 has a height ranging from 35cm to 45cm in the vertical direction. By adopting the height, the oil smoke absorption effect of the multifunctional stove can be ensured, and meanwhile, the structure of the multifunctional stove is compact, so that convenience for customers to select and operate food materials and seasonings placed on the smoke guide device 120 is improved in commercial occasions. It must be noted that the height of the vertical baffle herein refers to the highest point of the functional structure for blocking or guiding the oil smoke, and in this embodiment, the height of the vertical baffle specifically refers to the vertical distance between the highest point of the vertical baffle and the table top. The height does not include the height of the part for placing food, seasoning or lighting facilities arranged above the vertical baffle, and if the vertical baffle is composed of two or more baffles, the height also refers to the highest point of the functional structure for blocking or guiding the oil smoke. In this embodiment, the smoke guide further comprises a smoke guide screen 123.

The multifunctional stove 100 further comprises a smoke inlet structure, which at least comprises a smoke inlet 131 as a smoke inlet and a smoke gathering part 136 for gathering the smoke. As an optional embodiment, the smoke inlet is not arranged on the table top 101, and the smoke exhaust device is arranged in an external hanging manner, in this case, both the smoke inlet structure and the flue device are externally hung on the furnace body. At this time, the position of the smoke inlet is still close to the cooking position 110.

In this embodiment, the multi-function stove 100 further comprises a chimney means, the housing of which forms a smoke evacuation channel. The flue means includes a deposition section 132 disposed along the length of the furnace and a smoke evacuation section 133 disposed along the height of the furnace. One end of the deposition section 132 is connected to the smoke inlet structure so that the oil smoke can enter the smoke evacuation channel through the smoke inlet 131, and the other end of the deposition section 132 is connected to the smoke evacuation section 133. One end of the smoke evacuation section 133 is connected to the deposition section 132, and the other end of the smoke evacuation section is provided with a smoke outlet. The oil smoke outlet may be connected to a negative pressure generating device installed inside the body of the multifunctional stove 100, and in the present embodiment, the negative pressure generating device is a fan 140. Optionally, the fan can be installed through external mode, and the fan is connected to the oil smoke export of section of discharging fume.

As shown in fig. 2 and 3, the blower 140 includes a blower cover 141, a blower screen 142, a blower housing 143, an oil pan 144, and a negative pressure source (not shown) including a fan and/or a worm gear. The fan filter screen 142 is arranged between the smoke exhaust section and the fan and used for filtering oil smoke entering the negative pressure generating device, reducing the oil smoke entering the negative pressure generating device and prolonging the service life of the negative pressure generating device. The fan filter 142 is detachably mounted to the fan housing 143. In an alternative embodiment, the fan filter 142 is fixedly mounted to the fan housing 143, and the fan filter 142 and the fan housing 143 can be integrally detached and cleaned.

The oil receiving basin 144 is disposed at an opening of the fan housing 143, extends toward the inside of the fan housing, and forms a receiving space for receiving waste oil and waste water collected in the fan. And a sealing strip is arranged at the joint of the oil receiving basin and the fan shell. In the operating state, the oil receiving basin 144 is fixed to the fan housing by screwing or snapping, and in the cleaning state, the oil receiving basin can be taken out separately for cleaning and then be remounted to the fan housing. As an alternative embodiment, a handle (not shown) is disposed outside the oil receiving basin 144 to facilitate operations of taking out and installing the oil receiving basin.

As shown in fig. 3, the deposition section 132 is designed to be inclined such that the deposition section is connected to the smoke inlet structure at a higher elevation than the deposition section is connected to the smoke exhaust section 133. Specifically, the deposition section 132 forms an inclined included angle α with the horizontal plane, and the inclined included angle α is between 10 ° and 30 °. The connection of the deposition section 132 and the fume extraction section 133 is at an end spacing x from the end of the deposition section 132. By setting the tip interval x, a space accommodating chamber can be formed at the tip of the deposition section 132. The water droplets, oil droplets, etc. condensed inside the settling section 132 are subjected to gravity, move along the inner wall of the settling section pipe toward the end of the settling section 132, and are collected in the receiving chamber at the end of the settling section 132. At the end of the deposition section 132, a drain valve 134 is provided, which has two states, closed and open. In the closed state, the drain valve 134 remains sealed to prevent the loss of negative pressure in the smoke exhaust duct, thereby ensuring smoke exhaust suction. In the open state, the drain valve 134 is opened to communicate the receiving chamber at the end of the settling section with atmospheric pressure, so that the waste water, oil or other foreign matters collected therein are discharged through the drain valve 134. Through such design, can conveniently collect and clear up the waste oil, the waste water that multi-functional stove produced at culinary art in-process, reduce multi-functional stove's maintenance cost, improve its life.

Due to space constraints, the deposition section 132 has a length and the end spacing x of the receiving chambers must be maintained within a certain range. If x is set too large, the distance between the deposition section 132 and the condensed droplets is too small, so that the droplets of oil and water cannot be sufficiently collected in the deposition section 132, the pressure of the fan is increased, and the service life of the fan is shortened. If x is set too small, the volume of the terminal receiving chamber is too small, requiring frequent maintenance of the receiving chamber. The effective containment volume of the containment chamber is also related to the angle of inclination α of the deposition section 132. The larger the angle of inclination of the deposition section, the larger the effective receiving volume of the receiving chamber at the end thereof, given the same distance x between the ends. The product of the included angle of inclination α of the deposition section 132 and the tip spacing x in this embodiment has a value between 100 and 900. By adopting the parameter setting, the sedimentation section has stronger capability of condensing liquid drops, the dirt collecting pressure of the fan is reduced, and meanwhile, the space of the containing chamber at the tail end of the sedimentation section has larger space, and the maintenance frequency is reduced.

Referring to fig. 4 to 7, the multipurpose furnace further includes a wind shield 135, and the wind shield 135 is mounted to the smoke inlet structure, and particularly, the wind shield is mounted on the smoke inlet 131. The air deflector 135 is provided with a plurality of openings at the location of which a negative pressure is generated, through which the cooking fumes enter the cooking fume duct. The openings have a certain air discharge area. The area of the opening on the unit area of the wind shield is defined as unit air exhaust area. The position of the wind deflector 135 close to the smoke evacuation channel is the near end (end a) of the smoke evacuation, and the unit air discharge area of the near end of the smoke evacuation is smaller than the unit air discharge area of the far end (end B) of the smoke evacuation. Because the smoke inlet 131 of the multifunctional stove has a certain length, the negative pressure at the near end (end A) of the smoke exhaust of the smoke inlet 131 is stronger than the negative pressure at the far end (end B) of the smoke exhaust. The unit air exhaust area of the near end of the smoke exhaust is set to be smaller than that of the far end of the smoke exhaust, so that the negative pressure of each opening of the whole smoke inlet is basically kept consistent, the loss of the negative pressure at the near end of the smoke exhaust is reduced, and the overflow of the smoke generated at the cooking position close to the far end (B end) of the smoke exhaust due to insufficient negative pressure at the far end of the smoke exhaust is avoided.

Fig. 4 and 5 show a design of the wind deflector in the first embodiment, the opening of the wind deflector 135 is circular, and the diameter of the opening near the proximal end (section a) of the smoke evacuation channel is smaller than the diameter of the opening far from the distal end (end B) of the smoke evacuation channel, so that the unit air discharge area of the proximal end of the smoke evacuation channel is smaller than the unit air discharge area of the distal end of the smoke evacuation channel.

Figure 6 shows an alternative wind deflector design where the openings in wind deflector 135 are rectangular and the size of each opening is consistent. The distance between the openings at the near end (end A) of the smoke exhaust close to the smoke exhaust channel is larger than the distance between the openings at the far end (end B) of the smoke exhaust far away from the smoke exhaust channel, so that the unit air exhaust area of the near end of the smoke exhaust is smaller than that of the far end of the smoke exhaust.

Figure 7 shows an alternative wind deflector design in which a single aperture is provided in wind deflector 135. The width of the opening at the near end (end a) of the smoke evacuation near the smoke evacuation channel is smaller than the width of the opening at the far end (end B) of the smoke evacuation far from the smoke evacuation channel, so that the unit air discharge area at the near end of the smoke evacuation is smaller than the unit air discharge area at the far end of the smoke evacuation.

Fig. 8 to 13 are schematic views of a second embodiment of the present patent. The multifunctional furnace 200 comprises a furnace body, wherein the furnace body comprises a table-board 201, a control panel 202, a cabinet door 203 and a side board 204. A cooking position 210 is provided on the oven body, where a cooking device can be placed to achieve heating of the food material. As shown in fig. 9, the multifunctional stove further includes a smoke inlet structure, the smoke inlet structure includes a smoke inlet 231 provided on the table 201 and a smoke collecting portion 236 connected to the smoke inlet, and the smoke collecting portion 236 is used for collecting the oil smoke entering from the smoke inlet 231. In this embodiment, hold together cigarette portion and be big-end-up's down trapezoidal, hold the great opening area in cigarette portion upper end and can cooperate with the mouth of advancing cigarette, as far as possible absorption oil smoke. The smaller opening area of the lower end of the smoke gathering part can be matched with a smoke exhaust channel of the multifunctional furnace, so that the assembly convenience is improved, and the material cost is reduced. In this embodiment, the smoke evacuation channel 232 is disposed at the center of the smoke inlet, so that the negative pressure near the middle of the smoke inlet is greater than the negative pressure at both sides.

The smoke guide 220 in fig. 8 is disposed near the cooking position for guiding the smoke generated at the cooking position. The smoke guiding device 220 comprises a vertical baffle 221 and a horizontal baffle 222. The vertical baffle 221 is inclined towards the orientation of the cooking position 210, the vertical baffle 221 and the plane of the table top have an angle θ, the value of which is in the range of 65 ° to 85 °, θ preferably 70 ° to 80 °, in particular θ is 75 °. As an alternative embodiment, in case the table top itself has a certain inclination angle, the vertical baffle 221 has an angle of 65 ° to 85 ° with the horizontal plane, preferably 70 ° to 80 °, especially 75 °. In an application scenario of a multifunctional oven such as a roadside booth and a snack bar, an operator of the multifunctional oven usually stands at a position far away from a smoke guide device, and a barrier such as a wall or a windshield is often provided behind the operator, and in such an application scenario, since an air flow at the smoke guide device position is often larger than an air flow at the smoke guide device position, and a pressure of air in the vicinity of the smoke guide device is relatively small according to bernoulli's principle, when cooking is performed in such a scenario, a movement path of soot generated in a cooking device is often not vertically upward, but has a certain inclined angle toward the smoke guide device, and the angle is usually 5 to 25 °. Through the design of the inclined vertical baffle, compared with the vertical baffle arranged perpendicular to the table board or perpendicular to the horizontal plane, the projection area of the whole smoke guide device on the oil smoke movement path is larger, the smoke collection effect of the smoke guide device is improved, the oil smoke absorption effect of the downdraft oil smoke device is further improved, and the compactness and the attractiveness of the multifunctional stove are improved while the oil smoke absorption efficiency of the multifunctional stove is ensured. The vertical baffle 221 has a height in the vertical direction ranging from 35cm to 45cm. It should be noted that the height of the vertical baffle herein refers to the highest point of the functional structure for blocking or guiding the oil smoke, and does not include the height of other components arranged above the vertical baffle for placing food materials, seasonings, lighting facilities and the like.

Fig. 10 is a schematic view of another smoke guide 320. The smoke guiding device 320 is disposed at the smoke inlet 331, and includes a vertical baffle 321 and a horizontal baffle 322, wherein the horizontal baffle 322 extends from the vertical baffle 321 to the cooking position. The upper baffle 322 forms an angle β with the horizontal plane, the angle β being from 3 ° to 33 °, preferably from 13 ° to 23 °, in particular 18 °. By arranging the inclined upper baffle 322, the projection area of the smoke guide device on the oil smoke movement path is further increased, and the oil smoke absorption effect of the downdraft oil smoke device is improved.

In addition, the left and right sides of the smoke guiding device 320 are also provided with the protruded side baffles 323, so that the oil smoke diffused to the left and right can be blocked by the protruded side baffles, and the smoke collecting effect of the smoke guiding device is further improved. The side baffle is arranged from low to high along the width direction (W direction) of the multifunctional furnace. Such setting avoids the side shield to hinder the operation when guaranteeing the effect of gathering together cigarette of side shield.

Fig. 10 shows another smoke deflector design of the present invention. The smoke guiding device 420 further comprises an oil baffle 424, wherein the oil baffle 424 is arranged between the cooking position and the smoke inlet and used for blocking oil drops, liquid drops or other foreign matters splashed in a certain height. With such an arrangement, most of the splashed oil droplets, liquid droplets, and other foreign matter can be blocked, and the present invention is particularly suitable for use in deep frying.

Referring to fig. 12, the multipurpose furnace 500 of the third embodiment further includes a wind screen 535. The wind screen 535 is mounted to the smoke inlet of the multi-function stove and is provided with openings for forming a passage through which the oil smoke passes. The area of the opening on the unit area of the wind deflector is defined as unit air exhaust area, the position of the wind deflector 535 close to the middle part is the near end (end a) of the smoke exhaust, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the far end (end B) of the smoke exhaust close to the two sides. In this embodiment, the smoke evacuation channel is disposed in the middle of the wind deflector, so that the negative pressure formed in the middle of the wind deflector is greater than the negative pressure on both sides. The unit air exhaust area of the near end of the smoke exhaust is set to be smaller than the unit air exhaust area of the far end of the smoke exhaust, so that the negative pressure of each opening of the whole smoke inlet is basically kept consistent, the negative pressure loss of the near end of the smoke exhaust is reduced, and the smoke exhaust at the far end of the smoke exhaust is prevented from overflowing. Specifically, as shown in fig. 13, a plurality of circular openings are provided in the windshield 535, and the area of the circular opening near the center of the windshield is smaller than the area of the circular openings on both sides of the windshield. The wind deflector of this embodiment may also adopt a design similar to that of figures 6 and 7.

Fig. 14 is a schematic view of another embodiment of the present patent. The multifunctional oven 600 includes an oven body including a table 601, a plurality of holes formed on the table 601 to form a cooking position 610, and the cooking position 610 is used to place a cooking device for cooking. The table 601 further forms a heat preservation position 650, the heat preservation position 650 is used for placing a heat preservation device to maintain the temperature of the food material at a certain level, and the working temperature of the heat preservation device is lower than that of the cooking device. As an alternative embodiment, the top 601 does not have an opening for placing the cooking device and/or the thermal insulation device, and the cooking device and/or the thermal insulation device is connected to the top 601 by a plug-in manner.

The smoke guide 620 is higher than the table 601, extends upward in the height direction of the oven body, and guides the smoke generated at the cooking position 610. The smoke guide 620 is disposed at the smoke inlet (not shown in fig. 14) near the cooking position.

The utility model discloses not be limited to shown specific structure and arrange, as long as adopted with the utility model discloses a similar design such as the connected mode of each functional module of multi-functional stove, the slope design of leading the cigarette device, the long-pending dirty box of exhaust pipe, the heating structure of exhaust pipe just can realize similar effect, all should consider to belong to the utility model discloses a scope of protection.

Claims (10)

1. A multi-purpose stove comprising:

the oven body is provided with a plurality of cooking positions for heating food materials and a smoke inlet structure for providing an oil smoke inlet;

a smoke guide configured to have a certain smoke guide path for guiding the smoke near the cooking position;

a chimney means in communication with the smoke intake structure configured to have a smoke evacuation channel;

the method is characterized in that:

the multifunctional stove further comprises:

the wind shield is arranged at the smoke inlet structure and is provided with a smoke exhausting near end close to the smoke exhausting channel and a smoke exhausting far end far away from the smoke exhausting channel;

the air baffle is provided with an opening, the opening has an air exhaust area on the air baffle, the area of the opening on the unit area of the air baffle is defined as the unit air exhaust area, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the unit air exhaust area of the far end of the smoke exhaust.

2. The multi-purpose stove of claim 1, characterized in that:

the opening on the wind shield is a plurality of holes with different sizes, and the area of the hole on the wind shield close to the smoke exhaust channel is smaller than that of the hole far away from the smoke exhaust channel.

3. The multi-purpose stove of claim 1, characterized in that:

the holes on the wind shield are a plurality of holes with the same size, and the hole distance on the wind shield close to the smoke exhaust channel is larger than the hole distance on the wind shield far away from the smoke exhaust channel.

4. The multi-purpose stove of claim 1, characterized in that:

trompil on the deep bead is the bar hole, the bar hole is being close to smoke exhaust channel's hole width is less than the bar hole is kept away from smoke exhaust channel's hole width.

5. The multifunctional furnace according to any one of claims 1 to 4, characterized in that:

the cooking position is configured to have a depth at which two or more heating devices are provided;

a groove is arranged on the periphery of the cooking position, and the groove forms a space for containing liquid.

6. The multifunctional furnace according to any one of claims 1 to 4, characterized in that:

the cigarette feeding structure comprises a cigarette feeding port and a cigarette gathering part, and the cross section of the cigarette gathering part is in a shape of an inverted trapezoid with a large upper part and a small lower part.

7. The multifunctional furnace according to any one of claims 1 to 4, characterized in that:

the smoke guide device comprises a vertical baffle and a transverse baffle;

the vertical baffle is obliquely arranged, and the included angle between the vertical baffle and the horizontal plane is 65-85 degrees;

the effective smoke guiding height of the vertical baffle is 35 cm-45 cm.

8. The multi-purpose furnace of claim 7, wherein:

the transverse baffle is obliquely arranged, and the included angle between the transverse baffle and the horizontal plane is 3-33 degrees.

9. The multi-purpose stove of claim 8, characterized in that:

the smoke guide device further comprises a side baffle plate, and the side baffle plate extends from the position of the vertical baffle plate to the cooking position;

the height of the side baffle is changed from the height of the vertical baffle to the cooking position.

10. A multi-purpose stove comprising:

the oven body is provided with a cooking position for providing a plurality of heating food materials and a heat preservation position for preserving heat of the food materials;

a smoke guide configured to have a certain smoke guide path for guiding the soot near a cooking position of the oven body;

a chimney flue configured to have a smoke intake structure providing a smoke inlet, the chimney flue having a smoke evacuation channel in communication with the smoke intake structure;

the method is characterized in that:

the flue device further includes:

a wind deflector disposed at the smoke intake structure, the wind deflector having a proximal smoke evacuation end proximate the smoke evacuation channel and a distal smoke evacuation end distal from the smoke evacuation channel;

the air baffle is provided with an opening, the opening is provided with an air exhaust area on the air baffle, the area of the opening in the unit area of the air baffle is defined as a unit air exhaust area, and the unit air exhaust area of the near end of the smoke exhaust is smaller than the unit air exhaust area of the far end of the smoke exhaust.

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