CN210019038U - Smokeless self-service barbecue dining table and smokeless barbecue system comprising same - Google Patents

Abstract

The utility model discloses a smokeless self-service barbecue dining table and a smokeless barbecue system formed by the same, which comprises a dining table body at the upper part and a bottom cabinet arranged at the lower part of the dining table body; the center of the dining table body is provided with a through hole, a smoking ring matched with the shape of the through hole is nested in the through hole, a grill is placed in the smoking ring, the center of the grill is provided with a groove for embedding a baking tray, and the center of the groove is provided with the through hole; the bottom cabinet is transversely divided into four layers, and an electric ceramic furnace is arranged in the middle of the uppermost layer; the middle upper layer is a heat dissipation layer of the electric ceramic furnace; the middle lower layer is an air duct layer for pumping oil smoke, the air duct layer is provided with at least one air duct which penetrates through the heat dissipation layer of the middle upper layer and extends to the uppermost layer, and the middle part of the air duct layer is provided with a ventilating grid externally sleeved with an oil filter screen. The utility model discloses a reposition of redundant personnel of grease, the security is high, adds filter equipment, reduces cleaning member, reduces clean cost, suitable extensive popularization and application.

Description

Smokeless self-service barbecue dining table and smokeless barbecue system comprising same

Technical Field

The utility model relates to a diet cooking utensil technical field specifically indicates a smokeless self-service barbecue is with dining table and smokeless barbecue system that constitutes thereof.

Background

The charcoal barbecue oven is an oven which uses smokeless charcoal as a raw material for barbecue. When the barbecue is baked, in order to prevent the station from being sticky, edible oil needs to be coated on the baking net, and when the using amount of charcoal is large, the oil smoke pollution is large, so that a large amount of carcinogens are generated by the baked meat, the environmental protection property is poor, and the health is very easily influenced.

Chinese patent No. CN201020125556 discloses a lower smoke-discharging barbecue oven with a fan, the oven body adopts an upper layer space and a lower layer space, the fan is installed outside the oven body, and the fan realizes combustion supporting and smoke eliminating of a carbon fire box in the oven body through ventilation openings respectively arranged on the upper layer space shell and the lower layer space shell of the oven body. Namely, the barbecue oven can realize lower smoke discharge. However, the lower smoke-discharging barbecue oven is communicated with the lower layer space of the oven body only through the vent arranged on the oven body, so that the oil smoke generated in the barbecue process cannot be effectively discharged in time, and partial oil smoke is retained; in the process of roasting meat, a large amount of grease drops to the electric heating plate or charcoal fire along the oil leakage holes of the roasting plate, so that a large amount of oil smoke is generated, the taste of food is influenced, and the environment is polluted.

Chinese patent No. CN 201520794070.9 discloses a smokeless barbecue oven, inside which realizes secondary combustion of oil smoke by a built-in fan, and then completes circulating smoke discharge inside. Inside setting connect the oil basin, can receive the influence of heating plate, produce steam, cause the influence to the roast meat, simultaneously the oil leak hole is too far away apart from connecting the oil basin, and easy direct smoke ventilator is taken out, and its effect of reposition of redundant personnel grease is very limited, and no matter how much the oil smoke passes through the secondary combustion again in addition, still has the oil smoke to produce, and its inside circulation discharges fume, and the gas vent just is the gas outlet, can lead to the fact certain influence to the grease separation, this patent smokeless oven, the structure is undefined, and the function sets up the disorder, can't clearly determine its circulation process that how to realize discharging fume.

Above-mentioned two oven's structure all is that directly adopt the fan to aspirate the oil smoke, because the grease has extremely strong adhesion, consequently, at the suction in-process of oil smoke, the oil smoke can be attached to the bottom surface of overware, and the oven surface has equally to drip and produces, for the very big inconvenience that subsequent clean brought, reduces user's use simultaneously and experiences easily. In addition, no matter how the two barbecue ovens discharge the oil smoke, the air containing the oil smoke is finally discharged out of the barbecue ovens, and the environment is polluted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure is clear and definite, sets up rationally, and the effect is better, and the active control ability is good, can conveniently realize the smokeless self-service dining table for barbecue of self-service barbecue.

Another object of the present invention is to provide a smokeless barbecue oven system comprising the above mentioned smokeless barbecue oven.

The utility model discloses a following technical scheme realizes: a smokeless self-service barbecue table comprises a table body at the upper part and a bottom cabinet at the lower part;

the dining table comprises a dining table body and is characterized in that a through hole is formed in the middle of the dining table body, a smoking ring matched with the through hole in shape is nested in the through hole, a grill is placed in the smoking ring, a boss is arranged in the middle of the grill, an oil collecting groove is formed by the boss and the inner wall of the grill, a groove for embedding a baking tray is formed in the boss, and the middle of the groove is a through hole for exposing an electric ceramic stove;

the interior of the bottom cabinet is transversely divided into four layers by partition plates, and an electric ceramic furnace is arranged in the middle of the uppermost layer; the middle upper layer is a heat dissipation layer of the electric ceramic furnace; the middle lower layer is an air duct layer for pumping oil smoke, the air duct layer is provided with at least one air duct, the air duct penetrates through the heat dissipation layer of the middle upper layer and extends to the uppermost layer, the middle part of the air duct layer is provided with an air-permeable grid with the same height as the air duct layer, and an oil filter screen is sleeved outside the air-permeable grid; the lowest layer is provided with an air suction opening and a ventilation grid fan system relative to each other, a buried pipe is arranged in the ground bottom of the lower portion of the bottom cabinet, and the fan system sends out the pumped air from the buried pipe.

The technical scheme mainly embodies four functions, firstly, grease secreted by the roasted meat flows into an oil collecting tank of the roasting rack through the roasting tray, the grease is shunted, and an over-high-power fan system is not needed for oil smoke extraction; secondly, the oil collecting groove in the grill can be used as a temporary place for placing the roasted food, so that the possibility of continuous roasting is realized; thirdly, the ventilating grille wrapping the oil filter screen is additionally arranged, so that grease in the oil smoke is filtered by the oil filter screen, the air exhausted from the lower part is basically clean air, and only the oil filter screen needs to be replaced periodically during cleaning, thereby greatly reducing the clean content and simultaneously reducing the pollution of the exhausted oil smoke to the environment; fourth, the pipeline when burying is discharged fume with using, and its fan sound is less, and is very little to the user influence, and very big degree has improved user's self-service barbecue and has experienced.

In addition, the middle layer of the bottom cabinet is separated, and fan systems of the uppermost layer, the heat dissipation layer and the lowermost layer where the electric ceramic stove is located cannot contact oil smoke containing a large amount of oil drops, so that the electric ceramic stove can be kept clean for a long time.

In order to better realize the utility model discloses, furtherly, the through-hole upper portion at gridion middle part and the bottom of overware all are equipped with the oil scraper ring, the outer edge of oil scraper ring still is equipped with at least one bar oil leak hole on the overware, gridion middle part and the boss of overware gomphosis be equipped with bar oil leak hole position and shape assorted oil leak mouth.

In order to realize better the utility model discloses, furtherly, the outer edge of oil retainer on the overware still is equipped with four bar oil leak holes, and is ring array distribution at the overware border with the overware center, the boss of gridion middle part and overware gomphosis be equipped with bar oil leak hole position, quantity, shape assorted oil leak mouth, gridion both sides still symmetry be provided with the handle, the gridion is cast iron with the material of overware.

In order to better realize the utility model, furthermore, a control box is arranged at the side edge of the lower part of the dining table body, and the control box is respectively and electrically connected with the electric ceramic furnace and the fan system through cables arranged in the bottom cabinet; the control box is characterized in that a control panel for controlling the electric ceramic furnace temperature and the wind power of the fan system is arranged on the outer side of the control box, and a control circuit for controlling the electric ceramic furnace temperature and the fan system is integrated in the control box.

In order to realize better the utility model discloses, furtherly, fan system mainly including set up at extraction opening and ventilative grid position and size assorted impeller, drive impeller pivoted motor and with bury the pipe of discharging fume that the ground pipe is linked together, in independent space was arranged in to the impeller, this independent space and the pipe intercommunication of discharging fume.

In order to realize better the utility model discloses, furtherly, end cabinet the superiors border sets up the protruding edge that supports the dining-table body, and the middle part still is provided with the solid fixed ring of fixed electric ceramic stove, the left and right sides symmetry on wind channel layer is provided with the wind channel of rectangle, the wind channel passes the heat dissipation layer perpendicularly and extends to the superiors, and the opening in the superiors wind channel is not higher than the protruding edge of the superiors in the axis bilateral symmetry of solid fixed ring, and the opening in the superiors wind channel.

In order to realize better the utility model discloses, furtherly, the protruding edge of end cabinet the superiors support dining-table body is last, still is equipped with at least three locating pin, protruding edge is last to set up two locating pins at most, dining-table body lower part is provided with locating pin assorted locating hole.

In order to better realize the utility model discloses, furtherly, the heat dissipation layer of end cabinet, wherein relative both sides run through and are provided with the wind channel, evenly distributed has the louvre on the outer wall of both sides in addition.

In order to better realize the utility model discloses, furtherly, the end cabinet lower part still is equipped with the access door that is used for overhauing fan system.

The utility model also discloses a smokeless barbecue system who constitutes by above-mentioned a plurality of smokeless self-service barbecue with dining-table, every the buried pipe of smokeless self-service barbecue with dining-table all is connected to and buries on the main exhaust duct at the bottom of the earth, main exhaust duct's exit is equipped with an at least air exhaust fan, and unified discharge is every smokeless self-service barbecue is with the air that dining-table took out.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model can lead the grease secreted by the barbecue to flow into the oil collecting tank of the barbecue grill through the barbecue tray, realizes the shunting of the grease, does not need to use a fan system with overhigh power to extract the oil smoke, saves the energy, reduces the equipment requirement at the same time, and integrally reduces the cost of the self-service barbecue dining table;

(2) the oil collecting tank in the grill of the utility model can be used as a temporary place for placing the roasted food, thereby realizing the possibility of continuous roasting, the grill of the roasting tray is arranged separately, the temperature of the grill is kept continuously to a degree that the body can not be scalded, and the safety of self-service roasting is improved;

(3) the ventilation grille for wrapping the oil filter screen is additionally arranged, so that grease in the oil fume is filtered by the oil filter screen, the air exhausted from the lower part is basically clean air, and only the oil filter screen needs to be replaced periodically during cleaning, thereby greatly reducing the cleaning content, reducing the cleaning cost and simultaneously reducing the pollution of directly exhausted oil fume to the environment;

(4) the buried pipeline is used for exhausting smoke, the sound of a fan is small, the influence on a user is very little, and the self-service barbecue experience of the user is greatly improved;

(5) the utility model discloses the structure is clear and definite, sets up rationally, and the oil smoke effect is better from the pumping, suitable extensive popularization and application.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the split three-dimensional structure of the present invention;

FIG. 2 is a schematic plan view of the internal structure of the present invention;

FIG. 3 is a schematic perspective view of a part of the components of the present invention;

fig. 4 is a schematic plan view of the present invention.

Wherein: the table comprises a table body, a bottom cabinet, a grill, a baking tray, a smoking ring, an electric ceramic furnace, an air duct, a ventilating grid, an oil filter screen, an impeller, a motor, a smoke exhaust pipe, a buried pipe, a motor, a smoke exhaust pipe, a control box, an access door, a bottom floor and an air exhaust fan, wherein the table body comprises 1, the bottom cabinet, a grill, 4, the baking tray, 5, the smoke exhaust ring, 6, the electric ceramic furnace, 7, an air duct, 8, a ventilating grid, 9, an oil filter screen, 10, the impeller, 11, the motor, 12.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the main structure of the present embodiment, as shown in fig. 1, 2 and 3, comprises a dining table body 1 at the upper part and a bottom cabinet 2 at the lower part;

a through hole is formed in the middle of the dining table body 1, a smoking ring 5 matched with the through hole in shape is nested in the through hole, a grill 3 is placed in the smoking ring 5, a boss is arranged in the middle of the grill 3, the boss and the inner wall of the grill 3 form an oil collecting tank, a groove for embedding a baking tray 4 is formed in the boss, and the middle of the groove is a through hole for exposing an electric ceramic furnace 6;

the interior of the bottom cabinet 2 is transversely divided into four layers by partition plates, and the middle part of the uppermost layer is provided with an electric ceramic furnace 6; the middle upper layer is a heat dissipation layer of the electric ceramic furnace 6; the middle and lower layers are air duct layers for pumping oil smoke, at least one air duct 7 is arranged on each air duct layer, the air duct 7 penetrates through the heat dissipation layer of the middle and upper layers and extends to the uppermost layer, a ventilating grid 8 with the same height as the air duct layers is arranged in the middle of each air duct layer, and an oil filter screen 9 is sleeved outside each ventilating grid 8; the lowest layer is provided with a suction opening and a fan system opposite to the ventilating grid 8, a buried pipe 13 is arranged in the ground bottom 19 at the lower part of the bottom cabinet 2, and the fan system sends out the pumped gas from the buried pipe 13.

The specific embodiment is, install dining-table body 1 and end cabinet, carry out the roast of food through overware 4 in upper portion gridion 3 and roast, and overware 4 bottom is electric ceramic stove 6, and electric ceramic stove 6 heats the overware, realizes the barbecue to 4 upper portions of overware food, and the liquid grease that the roast food in-process produced can fall into gridion 3's oil trap from overware 4. The roasted food can be placed in the oil collecting tank for temporarily placing, and the grill 3 and the baking tray 4 are arranged in a separated mode, so that when the electric ceramic stove 6 heats the baking tray 4, the temperature of the grill 3 cannot be too high, the oil collecting tank of the grill 3 can be used for keeping the temperature of the roasted food for a short time, and meanwhile, a user for roasting the meat can be prevented from being scalded.

Baking tray 4 is the separable dress that inlays and is in gridion 3, has accomplished certain food back when baking tray 4 barbecue, can directly change baking tray 4, and it is too much to avoid the roast stain of barbecue food leaving over, influences the self-service barbecue experience of user.

When roasting meat, the fan system starts to operate, oil smoke generated by roasting food at the roasting tray 4 flows through the smoke absorbing ring 5 with the through hole array, the air duct 7, the air duct layer and the air permeable grid 8 wrapped with the oil filter screen 9 in sequence along with air under the action of the fan system, finally enters the fan system, and the extracted gas is sent out from the buried pipe 13 through the fan system. The air containing oil smoke can directly filter the oil smoke in the air through the air-permeable grid 8 wrapped with the oil filter screen 9, and the air entering the fan system is basically clean air.

Example 2:

in this embodiment, structures of the grill 3 and the baking tray 4 are further limited on the basis of the above-mentioned embodiments, as shown in fig. 1, fig. 2, and fig. 3, oil-blocking rings are respectively disposed on an upper portion of a through hole in the middle of the grill 3 and a bottom of the baking tray 4, at least one strip-shaped oil leakage hole is further disposed on an outer edge of the oil-blocking ring on the baking tray 4, and an oil leakage hole matching with the strip-shaped oil leakage hole in position and shape is disposed on a boss in the middle of the grill 3 and the baking tray 4. Because form oil vapor after the grease heating and compare in vapor and have very big adhesion, if not set up the oil scraper ring, directly use the lampblack absorber to aspirate the oil smoke, like two utility model patents listed in the background art, 6 bottoms of its electric ceramic stove and 3 must have the oil stain, serious oil that has produces, it is very inconvenient to the clearance in later stage, and the oil stain of electric ceramic stove surface can lead to the fact adverse effect to electric ceramic stove 6 moreover, influences the life-span of electric ceramic stove. Set up the oil scraper ring on gridion 3 and overware 4, then can guarantee, the grease that produces when roasting meat on overware 4 only can flow into gridion 3's oil trap through the bar oil leak hole in, 4 bottoms of overware can not have the oil stain, and the surface of electric pottery stove 6 can not be infected with the oil stain yet simultaneously, brings very big convenience for subsequent clearance. In addition, set up the bar oil leak hole at overware 4, when needs change overware 4, can use with the support handle of inserting of bar oil leak hole assorted to change overware 4. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 3:

in this embodiment, on the basis of the above embodiments, the structures of the grill 3 and the baking tray 4 are further limited, as shown in fig. 1, fig. 2, and fig. 3, the outer edge of the oil retainer on the baking tray 4 is further provided with four strip oil leakage holes, and is distributed at the edge of the baking tray 4 in an annular array manner with the center of the baking tray, the boss at the middle of the grill 3 and the protrusion of the baking tray 4 is provided with oil leakage ports matched with the position, the number, and the shape of the strip oil leakage holes, the two sides of the grill 3 are further symmetrically provided with handles, and the grill 3 and the baking tray 4 are made of cast. Through inventor's many times of experiments, it is the best oil leak state to reach and use four bar oil leakages, neither can influence the roast meat, can satisfy the reposition of redundant personnel and the collection to the grease simultaneously. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 4:

in this embodiment, a control mechanism is further added on the basis of the above embodiment, as shown in fig. 1 and fig. 2, a control box 17 is arranged on the side of the lower part of the dining table body 1, and the control box 17 is electrically connected with the electric ceramic furnace 6 and the fan system through cables arranged in the bottom cabinet 2; and a control panel for controlling the electric ceramic furnace temperature and the wind power of the fan system is arranged on the outer side of the control box 17, and a control circuit for controlling the electric ceramic furnace temperature and the fan system is integrated in the control box 17. In order to more easily realize the control of the barbecue temperature and the control of the oil smoke pumping wind power of the fan system, the control box 17 is specially added, so that the barbecue is convenient for users to roast by themselves. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 5:

in this embodiment, on the basis of the above embodiment, a fan system structure is further defined, as shown in fig. 2, the fan system mainly includes an impeller 10 arranged at the position and size of the air extraction opening and the air permeable grid 8, a motor 11 driving the impeller 10 to rotate, and a smoke exhaust pipe 12 communicated with a buried pipe 13, the impeller 10 is arranged in an independent space, and the independent space is communicated with the smoke exhaust pipe 12. The fan system adopts the setting of similar traditional smoke ventilator, and it is different from it to lie in, and its exhaust mode is through buying the pipeline exhaust gas at the ground bottom, and in addition, impeller 10 is corresponding with ventilative grid 8 position, and through the oil smoke of ventilative grid 8, the content of its oil smoke is few, and impeller 10 can keep clean, has further reduced clean cost. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 6:

this embodiment is on the basis of above-mentioned embodiment, further the structure of end cabinet 2, as fig. 1, fig. 2 shows, 2 the superiors of end cabinet border sets up the protruding edge that supports dining-table body 1, and the middle part still is provided with the solid fixed ring of fixed electric ceramic stove 6, the left and right sides symmetry on wind channel layer is provided with the wind channel 7 of rectangle, wind channel 7 passes the heat dissipation layer perpendicularly and extends to the superiors, and the opening in the wind channel 7 of the superiors is not higher than the protruding edge of the superiors in the opening of fixed ring about the axis of wind channel 7 of the superiors. The air duct opening is also rectangular, the length is 10-20 cm, the width is 5-10 cm, and the air pressure at the air duct opening is 400-600 m³And h, the two rectangular air duct openings can realize the technical effect of no oil smoke, the opening of the air duct 7 at the uppermost layer is not higher than the convex edge at the uppermost layer, and the air duct openings and the air permeable grid 8 have enough space to finish the oil smoke suction. The other parts are the same as the above embodiments and are not described again.

Example 7:

this embodiment is on the basis of above-mentioned embodiment, further adds the positioner of dining-table body 1 and end cabinet 2, as shown in fig. 1, fig. 2, 2 the superiors of end cabinet support dining-table body 1 are protruding along last, still are equipped with at least three locating pin 14, protruding edge is last to set up two locating pins 14 at most, dining-table body 1 lower part is provided with the locating hole of locating pin 14 assorted. The additional positioning pin 14 is used for limiting the installation positions of the dining table body 1 and the bottom cabinet 2, so that the dining table body 1 can be conveniently and quickly arranged on the upper part of the bottom cabinet 2 and can be stabilized. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 8:

in this embodiment, on the basis of the above embodiments, the structure of the bottom cabinet 2 is further limited, as shown in fig. 1 and fig. 2, the heat dissipation layer of the bottom cabinet 2 has two opposite sides penetrating the air duct 7, and the heat dissipation holes 15 are uniformly distributed on the outer walls of the other two sides. In order to improve the heat dissipation efficiency and prolong the service life of the electric ceramic furnace 6, heat dissipation holes are additionally arranged on a heat dissipation layer, so that the internal temperature of the bottom cabinet 2 is not too high, and internal circuits or pipelines are not affected. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 9:

in the present embodiment, on the basis of the above embodiment, the structure of the bottom cabinet 2 is further defined, and as shown in fig. 1, an access door 18 for accessing the fan system is further provided at the lower part of the bottom cabinet 2. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Implementation 10:

this embodiment provides a smokeless barbecue system who constitutes by above-mentioned a plurality of smokeless self-service barbecue with dining table, like figure 4 vegetarian food, every the buried pipe 13 of smokeless self-service barbecue with dining table all is connected to and buries on the main exhaust duct at the bottom of the earth, main exhaust duct's exit is equipped with an at least air exhaust fan 20, discharges every in unison the air that smokeless self-service barbecue took out with dining table. This smokeless barbecue system all carries out the derivation of air current through burying buried pipe 13 of ground end 19, will exhaust duct add air exhaust fan 20 at its mainstream and assist bleeding, improves exhaust efficiency, because every smokeless self-service barbecue is with dining-table has independent oil smoke filter equipment, therefore the clean air of the gas that takes out through air exhaust fan for not containing the oil smoke basically, avoids causing the pollution to the environment. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

It is to be understood that the operation principle and operation of the smokeless barbecue table and the structure of the smokeless barbecue system, such as the control box 17 and the air extractor 20, are well known in the art and will not be described in detail herein.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A smokeless self-service barbecue dining table is characterized by comprising a dining table body (1) at the upper part and a bottom cabinet (2) arranged at the lower part;

the dining table comprises a dining table body (1), and is characterized in that a through hole is formed in the middle of the dining table body (1), a smoking ring (5) matched with the through hole in shape is nested in the through hole, a grill (3) is placed in the smoking ring (5), a boss is arranged in the middle of the grill (3), the boss and the inner wall of the grill (3) form an oil collecting tank, a groove for embedding a baking tray (4) is formed in the boss, and the middle of the groove is a through hole for exposing an electric ceramic stove (6);

the interior of the bottom cabinet (2) is transversely divided into four layers by partition plates, and an electric ceramic furnace (6) is arranged in the middle of the uppermost layer; the middle upper layer is a heat dissipation layer of the electric ceramic furnace (6); the middle lower layer is an air duct layer for pumping oil smoke, the air duct layer is provided with at least one air duct (7), the air duct (7) penetrates through the heat dissipation layer of the middle upper layer and extends to the uppermost layer, the middle part of the air duct layer is provided with an air-permeable grid (8) with the same height as the air duct layer, and an oil filter screen (9) is sleeved outside the air-permeable grid (8); the lowest layer is provided with a suction opening and a fan system relative to the ventilating grid (8), a buried pipe (13) is arranged in the ground bottom (19) at the lower part of the bottom cabinet (2), and the fan system sends out the pumped gas from the buried pipe (13).

2. The smokeless self-service barbecue table according to claim 1, wherein oil retainer rings are provided on the upper portion of the through hole in the middle of the grill (3) and the bottom of the grill pan (4), at least one strip oil leakage hole is provided on the outer edge of the oil retainer ring on the grill pan (4), and an oil leakage port matching the position and shape of the strip oil leakage hole is provided on the boss of the middle of the grill (3) and the grill pan (4).

3. The smokeless self-service barbecue table according to claim 2, wherein the outer edge of the oil retainer on the baking tray (4) is further provided with four strip oil leakage holes, and the oil leakage holes are distributed on the edge of the baking tray (4) in a ring array form at the center of the baking tray, the boss at the middle part of the grill (3) and the embedding of the baking tray (4) is provided with oil leakage holes matched with the position, the number and the shape of the strip oil leakage holes, the two sides of the grill (3) are further symmetrically provided with handles, and the grill (3) and the baking tray (4) are both made of cast iron.

4. The smokeless self-service barbecue table of any one of claims 1 to 3, wherein a control box (17) is arranged at the side of the lower part of the table body (1), and the control box (17) is electrically connected with the electric ceramic oven (6) and the fan system through cables arranged in the bottom cabinet (2); the outer side of the control box (17) is provided with a control panel for controlling the temperature of the electric ceramic furnace and the wind power of the fan system, and a control circuit for controlling the temperature of the electric ceramic furnace and the wind power of the fan system is integrated in the control box (17).

5. The smokeless self-service barbecue table according to any one of claims 1 to 3, wherein the fan system mainly comprises an impeller (10) arranged at the air suction opening and matched with the position and size of the air permeable grid (8), a motor (11) for driving the impeller (10) to rotate, and a smoke exhaust pipe (12) communicated with a buried pipe (13), the impeller (10) is arranged in an independent space, and the independent space is communicated with the smoke exhaust pipe (12).

6. The smokeless self-service barbecue table as claimed in any one of claims 1 to 3, wherein the uppermost edge of the bottom cabinet (2) is provided with a convex edge for supporting the dining table body (1), the middle part of the bottom cabinet is further provided with a fixing ring for fixing the electric ceramic oven (6), the left and right sides of the air duct layer are symmetrically provided with rectangular air ducts (7), the air ducts (7) vertically penetrate through the heat dissipation layer and extend to the uppermost layer, the openings of the uppermost air ducts (7) are bilaterally symmetrical with respect to the central axis of the fixing ring, and the openings of the uppermost air ducts (7) are not higher than the convex edge of the uppermost layer.

7. The smokeless self-service barbecue table of claim 6, wherein at least three positioning pins (14) are further provided on the convex edge of the uppermost supporting dining table body (1) of the bottom cabinet (2), at most two positioning pins (14) are provided on one convex edge, and the lower part of the dining table body (1) is provided with positioning holes for matching the positioning pins (14).

8. The smokeless self-service barbecue table as recited in claim 6, wherein the heat dissipation layer of the bottom cabinet (2) has two opposite sides through which air ducts (7) are arranged, and the outer walls of the other two sides are uniformly distributed with heat dissipation holes (15).

9. The smokeless self-service barbecue table according to any one of claims 1 to 3, characterized in that the lower part of the bottom cabinet (2) is further provided with an access door (18) for accessing a fan system.

10. A smokeless barbecue system, comprising a plurality of smokeless barbecue tables of any one of claims 1 to 9, wherein the buried pipes (13) of each of the smokeless barbecue tables are connected to a main exhaust duct buried in the ground, and at least one air extractor (20) is provided at the outlet of the main exhaust duct to uniformly exhaust air drawn out from each of the smokeless barbecue tables.

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