A steam barbecue using biomass pellets

Abstract

The present invention discloses a steam grill for biomass particles, comprising: a grill box, a grill rack is provided inside; a fuel tank, which is arranged at one end of the grill box, a hopper and a steam system are arranged inside the fuel tank, the hopper is used to store biomass particle fuel and provide it to the grill box; the steam system comprises a steam pipe, the steam pipe passes through the grill box to input steam into the grill box; a strip box, which is partially passed through the grill box; a feed port and a combustion chamber are respectively arranged at both ends of the strip box, the feed port is arranged below the hopper, the combustion chamber is arranged below the grill rack, and a transmission device is arranged inside the strip box to transport the fuel entering from the feed port to the combustion chamber. A steam grill using biomass particles according to an embodiment of the present invention can input steam into the grill box during the process of grilling food, so that the grilled food is crispy on the outside and tender on the inside, thereby improving the taste of the grilled food.

Description

Technical Field

[0001] The invention relates to a barbecue oven, in particular to a steam barbecue oven using biomass particles. Background Art

[0002] Many people like outdoor barbecue activities, so outdoor barbecue grills are becoming more and more popular. Most of the pellet grills on the market have simple appearance and few functions, and most of the biomass pellet grills are open-air barbecues. The food in the barbecue grill is quickly dried out due to moisture, which can easily cause the food to burn and burn, affecting the taste of the baked food. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a steam grill using biomass particles, which adds a steam system to the existing grill and inputs steam into the grilling box, so that the food has the effect of being steamed during the grilling process, and the grilled food is crispy on the outside and tender on the inside, which improves the taste of the food.

[0004] According to the first aspect of the present invention, a steam barbecue grill using biomass pellets includes: a barbecue box with a barbecue grill inside; a fuel tank, which is arranged at one end of the barbecue box, and a hopper and a steam system are arranged in the fuel tank, and the hopper is used to store biomass pellet fuel and provide it to the barbecue box; the steam system includes a steam pipe, and the steam pipe passes through the barbecue box to input steam into the barbecue box; a strip box, which is partially passed through the barbecue box; a feed port and a combustion chamber are respectively arranged at both ends of the strip box, the feed port is arranged below the hopper, and the combustion chamber is arranged below the barbecue grill, and a transmission device is arranged in the strip box to transport the fuel entering from the feed port to the combustion chamber.

[0005] A steam barbecue grill using biomass particles according to an embodiment of the present invention has at least the following beneficial effects: the steam barbecue grill of the present invention inputs steam into the barbecue box during the process of grilling food, so that the food also has a steaming effect during the grilling process. Compared with most of the current open-air barbecue grills using charcoal fire, even if there is no grilling experience, the food will not be easily burnt or scorched, and the grilled food is crispy on the outside and tender on the inside, which effectively improves the taste of the grilled food.

[0006] According to some embodiments of the present invention, the steam system includes a water tank, a water pump and a steam generator, the water pump draws water from the water tank and pumps the water to the steam generator, and the steam generator atomizes the water into steam and provides the steam to the steam pipe.

[0007] According to some embodiments of the present invention, a box container is provided inside the fuel tank, one end of the box container is provided with an opening and the open end extends out of the fuel tank, and the water tank is slidably installed in the box container.

[0008] According to some embodiments of the present invention, a connecting pipe is provided at the other end of the box container; a water outlet pipe is provided at one end of the water tank, and a support plate is connected to the other end, the water outlet pipe is embedded in the connecting pipe, and the support plate is against the open end of the box container.

[0009] According to some embodiments of the present invention, two slots arranged at intervals are provided on the end surface of one end of the water tank away from the water outlet pipe, and a limiting abutment column is provided between the two slots; an embedded plate matching the slots is provided on the side of the abutment plate facing the water tank, and an elastic sheet is also provided between the two embedded plates; the slot opening faces upward, the embedded plate is inserted into the slot, and the elastic sheet abuts against the bottom of the limiting abutment column.

[0010] According to some embodiments of the present invention, a discharge port and an openable and closable cleaning port are provided at the bottom of the hopper, the discharge port is connected to the feed port, and the cleaning port is connected to the atmosphere.

[0011] According to some embodiments of the present invention, the transmission device is a conveying screw, which is arranged in the bar box. The conveying screw is connected to a driving device that can drive it to rotate around its own axis. When the conveying screw rotates, it can transport the fuel from the feed port to the combustion chamber.

[0012] According to some embodiments of the present invention, a feed pipe is provided in the bar box, the conveying screw is provided in the feed pipe, a feed hole is provided on the outer peripheral wall at one end of the feed pipe and is connected to the feed port, and the other end of the feed pipe is connected to the combustion chamber.

[0013] According to some embodiments of the present invention, the strip box is further provided with an air inlet, which is arranged opposite to the feed port, and a fan is provided at the bottom of the air inlet for blowing air into the strip box.

[0014] According to some embodiments of the present invention, a heat insulating member, a heat dividing cover and an oil receiving pan are further provided in the barbecue oven; the oil receiving pan is provided below the barbecue grill, and two ends of the oil receiving pan are respectively connected to the end walls of the two ends of the barbecue grill; the heat dividing cover is provided below the oil receiving pan, and the heat insulating member is provided below the heat dividing cover, and the heat insulating member is connected to the barbecue oven and covers the combustion chamber.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0018] Figure 2 is a structural exploded view of an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure inside the fuel tank of the present invention;

[0020] Figure 4 It is a structural exploded view of the water tank of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the fuel tank and the bar box of the present invention;

[0022] Figure 6 is an exploded view of the structure of the bar box of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the hopper of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the storage rack of the present invention;

[0025] Fig. 9 is a cross-sectional view of an embodiment of the present invention;

[0026] Fig.10 yes Figure 7 Enlarged view of point A in the middle.

[0027] Reference numerals:

[0028] Barbecue box 100, barbecue grill 101, box cover 102, chimney 103, positioning bolts 104, storage rack 110, side panel 111, pull-out panel 112, hanging panel 113, limiting holes 114, U-shaped groove 115, front panel 120, connecting panel 130, ash bucket 131, heat insulation 140, short side panel 141, positioning protrusion 142, heat dividing cover 150, long side panel 151, positioning groove 152, oil receiving pan 160, oil receiving box 161, oil draining tank 162, oil receiving bracket 170, oil drum 171, storage cabinet 180.

[0029] Fuel tank 200, heat insulation board 201, hopper 210, discharge port 211, cleaning port 212, filter screen 213, hopper cover 214, observation hole 215, cover plate 220, pick plate 221, limiting groove 222, limiting plate 230, limiting bolt 231, water tank 240, water outlet pipe 241, slot 242, limiting stop column 243, water pump 250, steam generator 260, steam pipe 261, box container 270, connecting pipe 271, stop plate 280, embedded plate 281, elastic sheet 282;

[0030] Bar box 300 , feed port 301 , combustion chamber 302 , air inlet 303 , fan 304 , conveying screw 310 , driving motor 311 , material conveying pipe 320 , material hole 321 . DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Reference Figures 1 to 10A steam barbecue using biomass pellets according to an embodiment of the present invention comprises: a barbecue box 100, in which a barbecue grill 101 is arranged; a storage cabinet 180 is arranged at the bottom of the barbecue grill 101, and the barbecue box 100 is installed on the storage cabinet 180. Rollers are arranged at the bottom of the storage cabinet 180 for easy movement outdoors. The barbecue box 100 is in the shape of a hollow cylinder. A semicircular groove having the same shape as the outer peripheral wall of the barbecue box 100 is arranged at the top of the storage cabinet 180. The barbecue box 100 is embedded in the semicircular groove at the top of the storage cabinet 180, that is, half of the space of the barbecue box 100 is embedded in the storage cabinet 180, saving space occupation. The barbecue box 100 comprises a barbecue grill 101 and a box cover 102. The barbecue grill 101 is provided with two layers, and the two layers of barbecue grills 101 are arranged in the barbecue box 100 at intervals from top to bottom; the box cover 102 is hinged to the outer peripheral wall of the barbecue box 100 and can be opened to one side for easy operation of food on the barbecue grill 101. The box cover 102 is a quarter circle, and the hinged part of the box cover 102 and the grill box 100 is the top of the grill box 100. When the box cover 102 is opened, a quarter of the grill 101 will be in an open state, and the grill 101 will be exposed, which is convenient for grilling food. A thermometer is also provided on the box cover 102 to monitor the temperature in the grill box 100. The grill 101 has two layers, both of which are arranged horizontally, and the area of ​​the upper layer is smaller than the area of ​​the bottom layer.

[0035] The fuel tank 200 is disposed at one end of the grill 100. A hopper 210 and a steam system are disposed in the fuel tank 200. The hopper 210 is used to store biomass pellet fuel and provide it to the grill 100. The steam system includes a steam pipe 261, which passes through the grill 100 to input steam into the grill 100. A filter screen 213 is disposed on the top of the hopper 210. A hopper cover 214 is disposed above the filter screen 213. The hopper cover 214 is hinged to the hopper 210 and is used to seal the top of the hopper 210. Figure 2 As shown, the bucket cover 214 is hinged to the side of the hopper 210 close to the bar box 300, and the bucket cover 214 can rotate around the hinge to open the bucket cover 214 to one side; the filter screen 213 is embedded in the hopper 210, and the inner wall of the upper part of the hopper 210 is provided with a flange protruding inward to support the filter screen 213. When feeding into the hopper 210, the filter screen 213 is initially filtered, so that the biomass particle fuel entering the hopper 210 will not block the discharge port 211 or be unable to enter the transmission device due to the large particles. The bucket wall on one side of the hopper 210 is also provided with an observation hole 215, and transparent glass is installed on the observation hole 215, so that the amount of fuel in the hopper 210 can be seen from the outside through the observation hole 215, so as to add fuel.

[0036] The bar box 300 is partially inserted into the grill box 100; the two ends of the bar box 300 are respectively provided with a feed port 301 and a combustion chamber 302, the feed port 301 is arranged below the hopper 210, and the combustion chamber 302 is arranged below the grill 101, and a transmission device is arranged inside the bar box 300 to transport the fuel entering from the feed port 301 to the combustion chamber 302. At present, most of the barbecue grills used are open-air barbecue grills, which use charcoal fire to grill. It is easy for people without barbecue experience to burn or scorch the food, and it is easy to get burned; ordinary biomass pellet grills also have the problem of easily burning or scorching the food; the steam grill of the present invention inputs steam into the grill box 100 during the process of grilling food, so that the food also has the effect of steaming during the grilling process, and the grilled food is burnt on the outside and tender on the inside, which effectively improves the taste of the grilled food.

[0037] In some embodiments of the present invention, the steam system includes a water tank 240, a water pump 250 and a steam generator 260. The water pump 250 draws water from the water tank 240 and pumps it to the steam generator 260. The steam generator 260 atomizes the water and provides it to the steam pipe 261. Specifically, Figure 3 As shown, the water tank 240, the water pump 250 and the steam generator 260 are all arranged in the fuel tank 200. The water pump 250 and the steam generator 260 are existing equipment available on the market. The steam pipe 261 is connected to the barbecue box 100 and to the middle of the double-layer barbecue rack 101. A liquid level alarm is arranged in the water tank 240, and an alarm will be sounded when the liquid level is lower than the set value. The steam system and the transmission device of the present invention are all controlled by the electric control board. When in use, start the power supply, set the barbecue use temperature, enter the barbecue mode, and after 10 to 15 minutes of barbecue, the steam system starts to start under the control of the electric control board, the water pump 250 starts to pump water into the steam generator 260, and the steam generator 260 starts to work. After 50 seconds, the steam enters the barbecue box 100 through the steam pipe 261. After working for 30 to 50 seconds, stop inputting steam. Work in a cycle of about 6 to 8 minutes until the food is cooked.

[0038] In some embodiments of the present invention, a box container 270 with an opening at one end is provided in the fuel tank 200, and an opening is provided at one end of the box container 270 and the open end extends out of the fuel tank 200, and the water tank 240 is slidably installed in the box container 270. Specifically, as Figure 4As shown, the front end of the box container 270 is provided with an opening, and the open end is provided with an edge protruding outward, and a square hole consistent with the cross-sectional shape of the box container 270 is provided on the box wall on the front side of the fuel tank 200. The box container 270 is inserted into the square hole, and the edge of the open end of the box container 270 abuts against the outer surface of the fuel tank 200. The other end of the box container 270 away from the open end is connected to a bracket, and the bracket is fixedly connected to the bottom of the fuel tank 200. The end of the box container 270 away from the open end is provided with a protrusion, which is movably inserted into the bracket and can slide relative to the bracket. The front and rear ends of the box container 270 are supported by the bracket and the square hole respectively.

[0039] In some specific embodiments of the present invention, a connecting pipe 271 is provided at the other end of the box container 270; a water outlet pipe 241 is provided at one end of the water tank 240, and a plate 280 is connected to the other end, the water outlet pipe 241 is embedded in the connecting pipe 271, and the plate 280 abuts against the end surface of the box container 270. Specifically, the connecting pipe 271 is connected to the water pump 250, the water outlet pipe 241 is connected to the bottom of the water tank 240, and the water outlet pipe 241 can be inserted into the connecting pipe 271, so that the water pump 250 can pump water from the water tank 240. The outer peripheral wall of the part of the water outlet pipe 241 inserted into the connecting pipe 271 is provided with a silicone sleeve, which serves to increase friction and seal; that is, when the water tank 240 is pushed inward to a position abutting against the box container 270, the water outlet pipe 241 will be inserted into the connecting pipe 271, and the silicone sleeve will contact the inner wall of the connecting pipe 271, thereby sealing the water in the water outlet pipe 241 during the process of pumping water by the water pump 250, thereby preventing the water in the water outlet pipe 241 from flowing into the box container 270; at the same time, the friction between the connecting pipe 271 and the water outlet pipe 241 is increased, thereby preventing the water tank 240 from slipping out of the open end of the box container 270.

[0040] In a further embodiment of the present invention, the end surface of the water tank 240 away from the water outlet pipe 241 is provided with two slots 242 arranged at intervals, and a limiting abutment column 243 is provided between the two slots 242; an embedding plate 281 matching the slots 242 is provided on the side of the abutment plate 280 facing the water tank 240, and an elastic sheet 282 is further provided between the two embedding plates 281; the embedding plate 281 with the slot 242 opening facing upward is inserted into the slot 242, and the elastic sheet 282 abuts against the bottom of the limiting abutment column 243 to prevent the embedding plate 281 from being pulled out upward. Specifically, as Figure 4 As shown, the slot 242 is a slot that runs through from top to bottom, and the embedded plate 281 is inserted vertically downward into the slot 242. When the embedded plate 281 is inserted downward into the slot 242, the outer wall of the elastic sheet 282 will abut against the limiting stop column 243. During the downward movement of the embedded plate 281, the elastic sheet 282 undergoes elastic deformation. After the embedded plate 281 is inserted downward into place, the elastic sheet 282 returns to its original shape and embeds into the bottom of the limiting stop column 243, preventing the stop plate 280 from being pulled out upward.

[0041] It should be noted that the area of ​​the abutment plate 280 is larger than the area of ​​the open end of the box container 270 , so after the water tank 240 is inserted into the box container 270 , the abutment plate 280 can seal the open end of the box container 270 .

[0042] In some embodiments of the present invention, a discharge port 211 and an openable and closable cleaning port 212 are provided at the bottom of the hopper 210, the discharge port 211 is connected to the feed port 301, and the cleaning port 212 is connected to the atmosphere. The discharge port 211 and the cleaning port 212 are arranged at intervals, and an arc-shaped channel is provided at the bottom of the cleaning port 212, which is connected to the atmosphere on one side of the hopper 210, so as to discharge the fuel in the hopper 210 from one side of the hopper 210. Debris will be generated during the storage and transportation of biomass particles, especially in the storage hopper 210, where a large amount of debris is easily accumulated at the bottom of the storage hopper 210 after long-term use, affecting the transportation of biomass particles; and when the storage hopper 210 is full of fuel, once the conveying device is stuck, it is difficult to handle it. The hopper 210 of the present invention is provided with a discharge port 211 and a cleaning port 212 at the bottom, and the cleaning port 212 is generally in a closed state. When the hopper 210 needs to be cleaned or troubleshooted, the fuel can be discharged from the cleaning port 212, which is convenient for cleaning and handling the hopper 210.

[0043] In some embodiments of the present invention, a cover plate 220 is provided on the cleaning port 212 . The cover plate 220 is slidably disposed in the hopper 210 to seal the cleaning port 212 .

[0044] In some embodiments of the present invention, a plug-in plate 221 is provided at one end of the cover plate 220 for easy insertion and removal, and the plug-in plate 221 is provided with a limit groove 222; the hopper 210 is provided with a movable limit bolt 231, and the limit bolt 231 can be movably inserted into or withdrawn from the limit groove 222 to enter or withdraw from the limit of the cover plate 220. Specifically, as Figure 7 , Fig.10 As shown, a strip groove is provided at the rear side of the hopper 210, and the plate body of the cover plate 220 can pass through the strip groove and be pressed on the cleaning port 212, but the width of the strip groove is very small, and the pick plate 221 cannot pass through it, which is used to limit the depth of the cover plate 220 inserted into the hopper 210. The limit groove 222 of the pick plate 221 is an open groove, and the limit bolt 231 can slide into the limit groove 222 from the side of the opening of the limit groove 222 to limit the horizontal sliding of the cover plate 220. The sliding direction of the limit bolt 231 and the sliding direction of the cover plate 220 are two directions perpendicular to each other on the same horizontal plane, that is, the sliding direction of the cover plate 220 is the front-to-back direction, and the sliding direction of the limit bolt 231 is the left-to-right direction.

[0045] It should be noted that the strip groove for the cover plate 220 to pass through is arranged on a side of the hopper 210 close to the cleaning port 212 to prevent the cover plate 220 from being inserted into the hopper 210 and covering the discharge port 211 .

[0046] In some embodiments of the present invention, a limiting plate 230 is provided on the outer wall of the hopper 210, the limiting plate 230 is provided above the pick plate 221, and a limiting bolt 231 is passed through the limiting plate 230. Specifically, the limiting plate 230 is connected to the outer wall of the hopper 210 by bolts, a slot hole is provided on the limiting plate 230, the limiting bolt 231 is passed through the slot hole and can slide relative to the limiting plate 230 along the slot hole, and when the limiting bolt 231 slides along the slot hole, the lower part of the limiting bolt 231 can slide into or out of the limiting slot 222.

[0047] In some embodiments of the present invention, the transmission device is a conveying screw 310, which is disposed in the bar box 300. The conveying screw 310 is connected to a driving device that can drive it to rotate around its own axis. When the conveying screw 310 rotates, it can transport the fuel from the feed port 301 to the combustion chamber 302.

[0048] In some specific embodiments of the present invention, a feeding pipe 320 is provided in the bar box 300, and a conveying screw 310 is provided in the feeding pipe 320. A material hole 321 is provided on the outer peripheral wall at one end of the feeding pipe 320 to communicate with the feeding port 301, and the other end of the feeding pipe 320 is communicated with the combustion chamber 302. Figure 5 As shown, the feed port 301 is arranged corresponding to the discharge port 211, and the feed port 301 has a slope extending downward and approaching each other, and the bottom shape of the feed port 301 is exactly the same as the shape of the material hole 321, so that the fuel for combustion can all fall from the material hole 321 into the gap of the conveying screw 310. The conveying pipe 320 is a hollow pipe body, which is penetrated at both ends along the axial direction, one end is connected to the combustion chamber 302, and the other end passes through the box wall of the strip box 300, which is used to protect the end of the conveying screw 310 extending out of the strip box 300.

[0049] Furthermore, one end of the feed pipe 320 extends out of the strip box 300 away from the combustion chamber 302, and a mounting plate is provided on the outer side of the end of the strip box 300 away from the combustion chamber 302, on which a driving motor 311 is mounted. The driving motor 311 is connected to the end of the conveying screw 310 in the feed pipe 320, and is used to drive the conveying screw 310 to rotate around its own axis.

[0050] In some embodiments of the present invention, the bar box 300 is further provided with an air inlet 303, which is arranged opposite to the feed port 301, and a fan 304 is arranged at the bottom of the air inlet 303 for blowing air into the bar box 300. Figure 6As shown, the fan 304 blows air inward from the air port. Since the feed port 301 is tightly fitted with the wall of the material hole 321 of the feed pipe 320, the air cannot escape from the feed port 301. Similarly, the bar box 300 is a sealed box, so the air can only flow toward the combustion chamber 302, providing oxygen into the combustion chamber 302 to improve the combustion effect.

[0051] In some embodiments of the present invention, the barbecue oven 100 is further provided with a heat insulating member 140, a heat dividing cover 150 and an oil receiving pan 160. The oil receiving pan 160 is provided below the barbecue grill 101, and the two ends of the oil receiving pan 160 are respectively connected to the end walls of the two ends of the barbecue grill 101; the heat dividing cover 150 is provided below the oil receiving pan 160, and the heat insulating member 140 is provided below the heat dividing cover 150. The heat insulating member 140 is connected to the barbecue oven 100 and covers the combustion chamber 302. Specifically, as Figure 2 As shown, the heat insulating member 140 is pressed on the top of the bar box 300 to reduce the heat dissipation to the surroundings. The heat dividing cover 150 is trapezoidal in shape and is used to dissipate the heat to the surroundings, so that different positions of the barbecue grill 101 have the same temperature and can obtain the same barbecue effect, avoiding excessive heat concentration in the middle of the barbecue grill 101. Short side plates 141 are provided on both sides of the heat insulating member 140. The short side plates 141 are inclined and provided with positioning protrusions 142 protruding outward; long side plates 151 with the same inclination as the short side plates 141 are provided on the opposite sides of the heat dividing cover 150, and the bottom of the long side plates 151 is provided with positioning grooves 152 matching the positioning protrusions 142, and the positioning protrusions 142 can be embedded in the positioning grooves 152 to achieve positioning of the heat dividing cover 150. The oil receiving pan 160 is tilted in the left-right direction, and one end close to the fuel tank 200 is higher than the other end, so that the dripping oil can flow along the slope to one end of the storage rack 110.

[0052] It should be noted that the two opposite sides of the oil receiving pan 160 do not contact the inner wall of the barbecue oven 100 , so that hot air can flow upward from the gap between the side of the oil receiving pan 160 and the inner wall of the barbecue oven 100 .

[0053] In some embodiments of the present invention, an oil receiving box 161 is provided at one end of the oil receiving pan 160 away from the fuel tank 200, and an oil drain groove 162 is provided in the middle of the oil receiving box 161; the oil drain groove 162 passes through the barbecue oven 100 to drain the waste oil dripping from the oil receiving pan 160.

[0054] In some embodiments of the present invention, an oil receiving bracket 170 is provided at one end of the barbecue oven 100 away from the fuel tank 200, and an oil barrel 171 is hung on the oil receiving bracket 170 to receive waste oil flowing out of the oil drain tank 162; the oil receiving bracket 170 is arranged below the storage rack 110. Specifically, Figure 2 , Fig. 9As shown, the oil falling from the oil receiving pan 160 flows along the inclined surface of the oil receiving pan 160 into the oil receiving box 161, the oil draining groove 162 is connected with the oil receiving box 161, and the oil draining groove 162 is located at the lowest point of the oil receiving box 161, and the waste oil flows out from the oil draining groove 162 into the oil barrel 171. The oil receiving bracket 170 and the oil barrel 171 are provided to prevent the waste oil from directly falling to the ground and polluting the environment.

[0055] In some embodiments of the present invention, a through hole is provided at the bottom of the barbecue oven 100, and a connecting plate 130 is provided around the through hole. An ash bucket 131 is hung on the connecting plate 130 to receive the ashes dropped from the combustion chamber 302; a chimney 103 for exhausting smoke is provided above the barbecue oven 100. Specifically, Figure 2 As shown, the connecting plate 130 is arranged on the periphery of the through hole at the bottom of the barbecue box 100, and the ash bucket 131 is hung on the connecting plate 130. The ash bucket 131 and the connecting plate 130 are connected by snaps. The bottom of the combustion chamber 302 is a filter 213, so the burnt ashes will fall out of the filter 213 and fall into the ash bucket 131, which is convenient for cleaning the ashes. At the same time, the ash bucket 131 can ensure the cleanliness of the locker 180. The connecting plate 130 is to prevent the ashes from falling out from the gap of the bottom through hole. The connecting plate 130 is provided with two oppositely arranged inverted L-shaped grooves, which are open grooves and open downward; the outer peripheral wall of the top of the ash bucket 131 is provided with two opposite bayonet pins, which are inserted from the bottom of the L-shaped groove, and then rotated horizontally, so that the ash bucket 131 can be hung on the connecting plate 130 to achieve the connection between the two.

[0056] In some embodiments of the present invention, a heat insulation board 201 is provided at the connection between the barbecue box 100 and the fuel tank 200. The heat insulation board is sleeved on the bar box 300 to prevent the bar box 300 from overheating.

[0057] In some embodiments of the present invention, a front plate 120 is provided on the open side of the cover 102 of the barbecue oven 100, and the front plate 120 is connected to the barbecue oven 100. Figure 1 , Figure 2 As shown, the front plate 120 is also used to increase the area for placing barbecue materials during outdoor barbecue. At the same time, the front plate 120 is located on the opening side of the box cover 102, that is, the front end of the barbecue oven, to prevent the human body from being directly in contact with the barbecue box 100 and being burned during barbecue. A hook is also provided at the bottom of the front plate 120 to increase convenience.

[0058] It should be noted that the front plate 120 and the barbecue box 100 are detachably connected. During transportation, the front plate 120 can be removed and stored in the storage cabinet 180 to reduce space occupation.

[0059] In some embodiments of the present invention, a positioning bolt 104 is provided at one end of the rack 110, and a hanging plate 113 is provided at one side of the rack 110, and the positioning bolt 104 is embedded in the hanging plate 113. Specifically, Figure 2 As shown, the right end of the rack 110 is provided with a positioning bolt 104, and the positioning bolts 104 are provided in two groups, each group has two, and the two positioning bolts 104 in each group are arranged at intervals from top to bottom, and the two groups of positioning bolts 104 are arranged at intervals horizontally. The hanging plate 113 is also provided with two groups and is arranged on the side facing the barbecue box 100. The hanging plate 113 is provided with a limiting hole 114 and a U-shaped groove 115 for the positioning bolts 104 to be embedded; each hanging plate 113 is provided with a limiting hole 114 and a U-shaped groove 115, and the limiting hole 114 is arranged above the U-shaped groove 115. The limiting hole 114 is a gourd-shaped hole, the lower part of which has a larger hole diameter, and the upper part is a strip-shaped groove, and the lower part of which has a larger hole diameter than the width of the upper strip-shaped groove. The larger hole at the lower part of the limiting hole can allow the head of the positioning bolt 104 to pass through, but the width of the upper strip-shaped groove can only allow the screw part of the positioning bolt 104 to pass through. The U-shaped groove 115 is an open groove with the groove facing downward. The groove width of the U-shaped groove 115 can also only allow the screw rod part of the positioning bolt 104 to pass through. During installation, the positioning bolts 104 above each group of positioning bolts 104 are embedded in the limiting holes 114 on the hanging plate 113, and the lower ones are embedded in the U-shaped groove 115 of the hanging plate 113. When installing the upper positioning bolts 104, they are first inserted from the lower part of the limiting holes 114. At the same time, after the upper positioning bolts 104 are inserted into the limiting holes 114, the U-shaped groove 115 is aligned with the screw rod of the lower positioning bolts 104, and then the rack 110 is driven downward, the upper positioning bolts 104 are embedded in the limiting holes 114, and the lower positioning bolts 104 are embedded in the U-shaped groove 115, and the installation is completed. When disassembling, the installation process is reversed. The rack 110 is detachably connected to the barbecue box 100. During transportation, the rack 110 can be removed and stored in the storage cabinet 180 to reduce space occupation.

[0060] In some embodiments of the present invention, side panels 111 extending downward are provided on both sides of the storage rack 110, and a pull-out plate 112 is provided between the two side panels 111. Figure 8 As shown, the pull-out plate 112 is similar to a drawer, and the bottoms of the left and right side panels 111 extend in opposite directions. The two sides of the pull-out plate 112 fall on the parts of the bottom of the side panels 111 extending in opposite directions, and the pull-out plate 112 can slide forward and backward relative to the side panels 111. The middle of the pull-out plate 112 has a groove, which can be used to place multiple barbecue items. The rack 110 and the pull-out plate 112 are both provided with drainage holes.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steam grill using biomass pellets, characterized in that: include: A grill box (100) having a grill rack (101) disposed therein; A fuel tank (200) is arranged at one end of the barbecue oven (100); a hopper (210) and a steam system are arranged in the fuel tank (200); the hopper (210) is used to store biomass pellet fuel and supply it to the barbecue oven (100); the steam system comprises a water tank (240), a water pump (250), a steam generator (260) and a steam pipe (261); the water pump (250) draws water from the water tank (240) and pumps it to the steam generator (260); the steam generator (260) atomizes the water into steam and supplies it to the steam pipe (261); the steam pipe (261) passes through the barbecue oven (100) and inputs steam into the barbecue oven (100); a discharge port (211) and an openable and closable cleaning port (212) are arranged at the bottom of the hopper (210); the cleaning port (212) is connected to the steam generator (260) and the steam generator (260) is connected to the steam generator (260); The discharge port (211) and the cleaning port (212) are arranged at intervals, and an arc-shaped channel is provided at the bottom of the cleaning port (212), and the arc-shaped channel is connected to the atmosphere on one side of the hopper (210) so as to discharge the fuel in the hopper (210) from the one side of the hopper (210); a cover plate (220) is provided on the cleaning port (212), and the cover plate (220) is slidably arranged on the hopper (210) and is used to seal the cleaning port (212); a clip plate (221) for easy insertion and removal is provided at one end of the cover plate (220), and the clip plate (221) is provided with a limiting groove (222); the hopper (210) is provided with a movable limiting bolt (231), and the limiting bolt (231) can be movably inserted into or withdrawn from the limiting groove (222) to enter or withdraw from the limiting position of the cover plate (220); A strip box (300) is partially inserted into the barbecue box (100); a feed port (301) and a combustion chamber (302) are respectively provided at two ends of the strip box (300); the feed port (301) is provided below the discharge port (211), the discharge port (211) is communicated with the feed port (301), the combustion chamber (302) is provided below the barbecue grill (101), and a transmission device is provided inside the strip box (300) to transport the fuel entering from the feed port (301) to the combustion chamber (302).

2. A steam grill using biomass particles according to claim 1, characterized in that: A box container (270) is provided in the fuel tank (200), one end of the box container (270) is provided with an opening and the open end extends out of the fuel tank (200), and the water tank (240) is slidably installed in the box container (270).

3. A steam grill using biomass particles according to claim 2, characterized in that: The other end of the box container (270) is provided with a connecting pipe (271); one end of the water tank (240) is provided with a water outlet pipe (241), and the other end is connected to a stop plate (280); the water outlet pipe (241) is embedded in the connecting pipe (271), and the stop plate (280) abuts against the open end of the box container (270).

4. A steam grill using biomass particles according to claim 3, characterized in that: The end surface of one end of the water tank (240) away from the water outlet pipe (241) is provided with two slots (242) arranged at intervals, and a limiting abutment column (243) is provided between the two slots (242); an embedding plate (281) matching the slots (242) is provided on the side of the abutment plate (280) facing the water tank (240), and an elastic sheet (282) is further provided between the two embedding plates (281); the slots (242) are opened upwards, the embedding plate (281) is inserted into the slots (242), and the elastic sheet (282) abuts against the bottom of the limiting abutment column (243).

5. The steam grill using biomass particles according to claim 1, characterized in that: The transmission device is a conveying screw (310), which is arranged in the bar box (300). The conveying screw (310) is connected to a driving device capable of driving it to rotate around its own axis. When the conveying screw (310) rotates, the fuel can be transported from the feed port (301) to the combustion chamber (302).

6. The steam grill using biomass particles according to claim 5, characterized in that: A material conveying pipe (320) is provided in the bar box (300), and the conveying screw (310) is provided in the material conveying pipe (320). A material hole (321) is provided on the outer peripheral wall at one end of the material conveying pipe (320) and is connected to the material feed port (301), and the other end is connected to the combustion chamber (302).

7. A steam grill using biomass particles according to claim 6, characterized in that: The strip box (300) is further provided with an air inlet (303), the air inlet (303) being arranged opposite to the material inlet (301), and a fan (304) is provided at the bottom of the air inlet (303) for blowing air into the strip box (300).

8. The steam grill using biomass pellets according to claim 1, characterized in that: The barbecue oven (100) is further provided with a heat insulating member (140), a heat dividing cover (150) and an oil receiving pan (160); the oil receiving pan (160) is arranged below the barbecue grill (101); two ends of the oil receiving pan (160) are respectively connected to the end walls of the barbecue grill (101); the heat dividing cover (150) is arranged below the oil receiving pan (160); the heat insulating member (140) is arranged below the heat dividing cover (150); the heat insulating member (140) is connected to the barbecue oven (100) and covers the combustion chamber (302).

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