Multifunctional integrated oven trolley

Abstract

According to the multifunctional integrated oven trolley, fuel gas is adopted as energy, smoke generated in the barbecuing process can be reduced, no charcoal ash is left, and cleaning and maintaining are convenient; the multiple straight pipe furnace ends can be independently controlled, a user can adjust fire power according to requirements, gas consumption is reduced, the overall temperature control precision is improved, and partition temperature control is supported; the movable cabinet body is convenient to move, and food materials are convenient to stack due to the arrangement of the storage table; through the design of the exhaust fume collecting hood and the exhaust fume extraction device, exhaust fume gas generated in the barbecue process can be extracted, meanwhile, after the hood body rotates upwards by 90 degrees to be opened, some scattered exhaust fume can enter the main fume suction channel of the exhaust fume collecting hood along the auxiliary fume suction channel and the auxiliary fume suction opening, and due to the fact that the coverage range of the hood body is large, the range of the hood body is large. The range of suction of the spilled oil smoke is larger, so that the spilled oil smoke gas is further sucked, and finally, the oil smoke gas subjected to concentrated suction can be matched with a related oil smoke purifier for purification treatment.

Description

Technical Field

[0001] This invention relates to the field of kitchenware technology, and in particular to a multifunctional integrated oven cart. Background Technology

[0002] Traditional barbecue ovens typically rely on charcoal burning and lack fume extraction capabilities, resulting in direct emissions of fumes that pollute the environment and harm health. VOCs in the fumes react with nitrogen oxides to produce ozone, exacerbating photochemical pollution; condensed fumes adhere to plant leaves, inhibiting photosynthesis; oil seeps into the soil, disrupting the microbial balance and affecting plant growth; and charcoal burning consumes large amounts of timber, exacerbating deforestation. Pollutants such as carbon monoxide, polycyclic aromatic hydrocarbons, and particulate matter in the fumes easily accumulate in enclosed or poorly ventilated environments, impacting human health and causing carbon monoxide poisoning, cancer risk, and respiratory damage. Therefore, there is an urgent need to design a new, multifunctional integrated barbecue oven. Summary of the Invention

[0003] The purpose of this invention is to provide a multifunctional integrated oven cart that uses gas as a heating medium to solve the problem of charcoal burning, and uses an oil fume extraction mechanism to centrally extract oil fumes in conjunction with an oil fume purifier for oil fume purification.

[0004] The above-mentioned technical objective of this invention is achieved through the following technical solution: a multi-functional integrated grill cart, comprising a fuel storage and fume extraction unit and a grilling operation unit; the fuel storage and fume extraction unit includes a movable cabinet, a gas cylinder disposed within the cabinet, a fume extraction device disposed within the cabinet, and two storage platforms disposed on both sides of the top of the cabinet; the grilling operation unit includes a shell detachably disposed on the cabinet, multiple straight-tube burners arranged within the shell and individually controllable, a water tray retractable at the bottom of the shell, a grill rack assembly detachably disposed within the shell, a fume hood disposed on the rear side of the shell and connected to the fume extraction device after the shell is installed, and a cover movably disposed on the fume hood; the upper surface of the shell is flush with the upper surface of the storage platforms, and the gas cylinder supplies gas to the multiple straight-tube burners. The smoke collection hood is equipped with a main smoke extraction channel that connects to the fume extraction device. The smoke collection hood also has multiple main smoke extraction ports that are inclined towards the housing. The hood body is rotatably connected to the smoke collection hood. When the hood body is rotated upwards by 90 degrees to open, it rests on the housing for fixation. An auxiliary smoke extraction channel is formed between the inner side of the hood body, the outer side of the smoke collection hood, and the upper rear surface of the housing. The rear side of the smoke collection hood has multiple auxiliary smoke extraction ports that communicate with the main smoke extraction channel. The rear side of the smoke collection hood is equipped with a cover plate assembly that covers the multiple auxiliary smoke extraction ports in its natural state. A linkage assembly is provided between the cover plate assembly and the hood body, which drives the cover plate assembly to open during the upward rotation of the hood body by 90 degrees. The cover plate assembly and the linkage assembly separate the cavity between the rear side of the smoke collection hood and the lower inner side of the hood body when the cover plate assembly is open.

[0005] By adopting the above technical solution and using natural gas as the energy source, the generation of smoke during the grilling process can be reduced and there is no charcoal ash residue, making cleaning and maintenance convenient; multiple straight tube burners can be controlled individually, allowing users to adjust the heat according to their needs, saving gas consumption, improving overall temperature control accuracy, and supporting zoned temperature control; the movable cabinet facilitates relocation, and the shelf provides convenient storage for food; when the cover is closed, it rests on the shell and covers the opening area of ​​the shell and the smoke hood, serving functions such as smoldering, temporary rain protection, heat preservation after grilling, and dust prevention during storage. The formed air inlet provides oxygen for combustion during smoldering, while the cover assembly remains in its natural state. The auxiliary smoke inlet is covered to avoid affecting the main smoke inlet's extraction of fumes. Through the design of the smoke collection hood and smoke extraction device, the fumes generated during grilling can be extracted. Simultaneously, when the hood is rotated upwards by 90 degrees, some overflowing fumes can also enter the main smoke collection hood's smoke channel along the auxiliary smoke inlet and smoke extraction passage. Due to the large coverage area of ​​the hood, the extraction range of overflowing fumes is wider, allowing for further extraction. Finally, the extracted fumes can be used in conjunction with a relevant fume purifier for fume purification, reducing air pollution and thus solving the problems of environmental pollution and health hazards caused by cooking fumes.

[0006] A further configuration of the present invention is as follows: the cover plate assembly includes two guide shafts disposed on the rear side of the smoke collection hood, a first cover plate with both ends raised and lowered on the guide shafts, a first sealing ring disposed on the first cover plate and used to abut against the rear side of the smoke collection hood to cover multiple auxiliary smoke inlets, a first spring sleeved on the guide shafts and with its upper end pressed against the bottom of the first cover plate, and an anti-loosening nut threadedly connected to the upper end of the guide shafts to prevent the first cover plate from falling off; when the first spring is not subjected to other external forces, the first cover plate covers multiple auxiliary smoke inlets, and the linkage assembly is used to drive the first cover plate to move downward to open the auxiliary smoke inlets.

[0007] By adopting the above technical solution, when the cover plate assembly is not subjected to external force, the first spring causes the first cover plate assembly to cover multiple auxiliary smoke ports, and the first sealing ring inside the first cover plate seals the connection; during the process of the cover body rotating upward 90 degrees, the linkage component is used to drive the first cover plate to move downward, at which time the first spring is compressed, and the auxiliary smoke ports are opened during the downward movement of the first cover plate.

[0008] A further configuration of the present invention is as follows: the linkage assembly includes a first linkage plate disposed on the top of the first cover plate and extending rearward, and a second linkage plate disposed inside the cover body. During the process of the cover body rotating upward 90 degrees, the first linkage plate presses down on the second linkage plate to overcome the elastic force of the first spring, so that the auxiliary smoke inlet is opened during the downward movement of the first cover plate. After the first linkage plate and the second linkage plate abut against each other, they separate the cavity between the rear side of the smoke collection cover and the lower part of the inner side of the cover body.

[0009] By adopting the above technical solution, during the process of the hood rotating upward 90 degrees, the first linkage plate presses down on the second linkage plate with the elastic force of the first spring, so that the first cover plate opens the auxiliary smoke inlet during the downward movement. At the same time, after the first linkage plate and the second linkage plate come into contact, they separate the cavity at the rear of the smoke collection hood from the lower part of the inner side of the hood, so as to reduce the volume of the auxiliary smoke channel and improve the efficiency of the oil fume being sucked in from the auxiliary smoke inlet.

[0010] A further configuration of the present invention is as follows: the cover plate assembly includes a second cover plate rotatably connected to the rear side of the smoke collection hood at its bottom, a second sealing ring disposed on the second cover plate and used to abut against the rear side of the smoke collection hood to cover multiple auxiliary smoke inlets, arc-shaped guide sleeves disposed at both ends of the second cover plate, an arc-shaped shaft disposed on the rear side of the smoke collection hood and passing through the arc-shaped guide sleeves, a second spring sleeved on the arc-shaped shaft and extending out of one end of the arc-shaped guide sleeves, and an anti-detachment end cap threadedly connected to the end of the arc-shaped guide sleeves; when the second spring is not subjected to other external forces, the second cover plate covers multiple auxiliary smoke inlets, and the linkage assembly is used to drive the second cover plate to rotate outward to open the auxiliary smoke inlets.

[0011] By adopting the above technical solution, when the second cover plate is not subjected to external force, the second cover plate covers multiple auxiliary smoke ports under the action of the second spring, and the second sealing ring on the second cover plate seals the connection; during the process of the cover rotating upward 90 degrees, the linkage component is used to drive the second cover plate to rotate outward to open the auxiliary smoke ports.

[0012] A further feature of the present invention is that: the bottom of the second cover plate is provided with a rotating shaft portion rotatably connected to the rear side of the smoke collection hood; the linkage assembly includes two linkage gears disposed at the ends of the rotating shaft portion and an arc-shaped rack disposed on the inner walls of both sides of the hood body with its center located on the rotation axis of the hood body; the arc-shaped rack meshes with the linkage gears during the rotation of the hood body to drive the second cover plate to rotate; a flexible rubber strip is disposed on the top of the second cover plate; after the hood body rotates upward 90 degrees to drive the second cover plate to rotate, the flexible rubber strip abuts against the inner side of the hood body; the second cover plate and the flexible rubber strip separate the cavity at the rear side of the smoke collection hood from the cavity at the lower inner side of the hood body.

[0013] By adopting the above technical solution, during the process of the hood rotating upward 90 degrees, the arc-shaped rack and the linkage gear mesh with each other, driving the second cover plate to rotate, so as to open the auxiliary smoke inlet. At the same time, the flexible rubber strip on the second cover plate abuts against the inner side of the hood, so as to separate the cavity at the rear of the smoke collection hood from the lower part of the inner side of the hood, thereby reducing the volume of the auxiliary smoke channel and improving the efficiency of the oil fume being sucked in from the auxiliary smoke inlet.

[0014] A further provision of the present invention is that: air outlets are provided on both sides and the back of the cabinet, and the fume extraction device includes an air collection box disposed inside the cabinet and communicating with the main smoke extraction channel of the fume hood, a fan disposed inside the air collection box, a square-round connector connected to the bottom of the air collection box and connected to the air outlet port of the fan, and an air outlet pipe connected to the square-round connector and passing through one of the air outlets of the cabinet.

[0015] By adopting the above technical solution, the fume extraction device includes an air collection box, a fan, a square and round connector, and an exhaust pipe. During the operation of the fan, the air in the air collection box is discharged from the exhaust pipe, thereby creating a negative pressure in the air collection box. This allows the oily fumes to enter the air collection box along the smoke inlet and smoke passage of the fume hood and be discharged through the exhaust pipe, thus achieving the extraction of oily fumes generated during the grilling process.

[0016] A further provision of the present invention is that two reinforcing plates are respectively provided between the two sides of the cabinet and the adjacent shelf.

[0017] By adopting the above technical solution, the reinforcement plate can improve the structural stability of the shelf after installation, thereby increasing the maximum load-bearing capacity of the shelf.

[0018] A further feature of the present invention is that: the top of the shell is provided with a corrugated bottom plate, and each recessed portion of the bottom plate is provided with a plurality of oil drain ports in the middle, and the water receiving tray is used to receive oil dripping from the oil drain ports; each recessed portion of the bottom plate is located between two adjacent straight tube burners.

[0019] By adopting the above technical solution, the grease and other oils that drip during the grilling process will fall onto the bottom plate and flow into the oil drain in the recessed part under the action of gravity, thus dripping into the water tray (pre-filled with water) for cooling and collection, which has the function of conveniently collecting the grease produced during the grilling process; at the same time, each recessed part of the bottom plate is located between two adjacent straight tube burners, so after the grilling rack assembly is disassembled, the oil drain and the straight tube burner are not dry to each other, which facilitates the cleaning of the bottom plate.

[0020] A further feature of the present invention is that: the front and rear sides of the top of the housing are provided with support grooves, the front and rear sides of the housing are provided with support shafts, and the barbecue rack assembly includes a plurality of first barbecue racks on the front and rear sides respectively for resting on the support grooves on the front and rear sides, and a plurality of second barbecue racks on the front and rear sides respectively for resting on the support shafts on the front and rear sides and in a wavy shape, wherein the height of the second barbecue rack is lower than the height of the first barbecue rack.

[0021] By adopting the above technical solution, the barbecue grill assembly includes a first barbecue grill and a second barbecue grill. The height of the second barbecue grill is lower than that of the first barbecue grill. Potatoes, sweet potatoes, and other ingredients that require a long grilling time can be placed on the second barbecue grill. At the same time, the zigzag design can limit the movement. In addition, two individual first barbecue grills or one first barbecue grill and two second barbecue grills can be installed inside the shell, and the installation can be selected according to actual needs.

[0022] A further feature of the present invention is that: the smoke hood is provided with a back stove head for assisting grilling and heat preservation and can be controlled independently on the front side of the main smoke duct, and the gas canister supplies gas to the back stove head; a third grill rack is provided inside the smoke hood, and the third grill rack is located above the back stove head.

[0023] By adopting the above technical solution, the back burner can be used to assist in grilling and heat preservation. A third grill rack is set inside the smoke hood. With the combined effect of the oil fume flow passing through the third grill rack and the back burner, grilling can also be carried out on the third grill rack, or the grilled food can be placed on the third grill rack to keep it warm. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of Example 1;

[0025] Figure 2 This is an exploded view of the structure of Example 1;

[0026] Figure 3 This is a schematic diagram of the back side structure of Example 1;

[0027] Figure 4 This is a schematic diagram illustrating the structure of the fume extraction device in Example 1;

[0028] Figure 5 This is a schematic diagram of the structure of the grilling operation unit in Example 1;

[0029] Figure 6 This is a partial exploded view of the grilling operation unit in Example 1;

[0030] Figure 7 This is a schematic diagram of the structure after the cover is closed in Example 1.

[0031] Figure 8 yes Figure 1 A partial structural diagram;

[0032] Figure 9 yes Figure 8 A magnified view of the area located at point A;

[0033] Figure 10 This is a partial structural schematic diagram of Example 2;

[0034] Figure 11 yes Figure 10 A magnified view of the area located at point B.

[0035] Attached reference numerals: 1. Fuel storage and fume extraction unit; 11. Cabinet; 111. Casters; 112. Air outlet; 12. Gas cylinder; 13. Fume extraction device; 131. Air collection box; 132. Fan; 133. Square / round connector; 134. Air outlet duct; 14. Storage platform; 15. Reinforcing plate; 2. Barbecue operation unit; 21. Shell; 211. Base plate; 2111. Oil drain; 212. Shelf; 213. Support shaft; 22. Straight tube burner head; 23. Water tray; 24. Barbecue rack assembly; 241. First barbecue rack; 242. Second barbecue rack; 25. Smoke hood; 251. Main smoke extraction channel; 252. Main smoke extraction port; 253. Auxiliary smoke extraction port; 26. Cover body; 261. Handle; 262. Air inlet; 263. Auxiliary smoke extraction channel; 27. Back burner head; 28. Third barbecue grill; 29. ​​Cover plate assembly; 291. Guide shaft; 292. First cover plate; 293. First sealing ring; 294. First spring; 295. Anti-loosening nut; 296. Second cover plate; 2961. Rotating shaft; 2962. Flexible rubber strip; 297. Second sealing ring; 298. Arc-shaped guide sleeve; 299. Arc-shaped shaft; 2910. Second spring; 2911. Anti-loosening end cap; 210. Linkage assembly; 2101. First linkage plate; 2102. Second linkage plate; 2103. Linkage gear; 2104. Arc-shaped rack. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Example 1: A multi-functional integrated oven cart, such as Figure 1 and Figure 2 As shown, it includes a fuel storage and fume extraction unit 1 and a barbecue operation unit 2.

[0038] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the fuel storage and exhaust unit includes a movable cabinet 11, a gas cylinder 12 installed inside the cabinet 11, a fume extraction device 13 installed inside the cabinet 11, and two shelves 14 installed on both sides of the top of the cabinet 11. The barbecue operation unit 2 includes a housing 21 detachably installed on the cabinet 11, multiple straight tube burners 22 arranged inside the housing 21 and individually controllable, a water tray 23 pulled out at the bottom of the housing 21, a barbecue rack assembly 24 detachably installed inside the housing 21, a smoke collection hood 25 located at the rear of the housing 21 and connected to the fume extraction device 13 after the housing 21 is installed, and a cover 26 movably installed on the smoke collection hood 25. The upper surface of the housing 21 is flush with the upper surface of the shelves 14. The gas cylinder 12 supplies gas to the multiple straight tube burners 22. The smoke collection hood 25 has a main smoke extraction channel 251 connected to the fume extraction device 13, and multiple main smoke extraction ports 252 inclined towards the housing 21.

[0039] like Figures 2 to 4 As shown, air vents 112 are provided on both sides of the cabinet 11. The fume extraction device 13 includes an air collection box 131 installed inside the cabinet 11 and communicating with the main smoke extraction channel 251 of the fume hood 25, a fan 132 installed inside the air collection box 131, and an air outlet pipe 134 connected to the outlet end of the fan 132 and passing through one of the air vents 112 of the cabinet 11. Two reinforcing plates 15 are respectively provided between the two sides of the cabinet 11 and the adjacent shelf 14.

[0040] like Figure 3 and Figure 6 As shown, the top of the shell 21 is provided with a corrugated bottom plate 211, and a plurality of oil drain ports 2111 are provided in the middle of each recessed part of the bottom plate 211. The water receiving tray 23 is used to receive the oil dripping from the oil drain ports 2111. Each recessed part of the bottom plate 211 is located between two adjacent straight tube burners 22.

[0041] like Figure 2 , Figure 5 and Figure 6 As shown, the top of the housing 21 has mounting slots 212 on both the front and rear sides, and the housing 21 has support shafts 213 on both the front and rear sides. The grill assembly 24 includes multiple first grills 241 on the front and rear sides respectively for resting on the mounting slots 212 on the front and rear sides, and multiple second grills 242 on the front and rear sides respectively for resting on multiple support shafts 213 on the front and rear sides in a wavy shape. The height of the second grills 242 is lower than the height of the first grills 241. The smoke hood 25 is located in front of the main smoke channel 251 and has a back burner 27 for auxiliary grilling, heat preservation and can be controlled independently. The gas canister 12 supplies gas to the back burner 27. A third grill 28 is provided inside the smoke hood 25 and is located above the back burner 27.

[0042] like Figures 6 to 8 As shown, a handle 261 is provided on the front side of the cover 26, and the cover 26 is rotatably connected to both sides of the smoke hood 25. When the cover 26 is closed, it rests on the housing 21 and covers the opening area of ​​the housing 21 and the smoke hood 25. An air inlet 262 for air intake is left between the rear side of the cover 26 and the top of the smoke hood 25. When the cover 26 is opened by rotating upward 90 degrees, it rests on the housing 21 for fixation, and the inner side of the cover 26 and the smoke hood 25 are closed. An auxiliary smoke-smoking channel 263 is formed between the outer side and the upper rear surface of the housing 21. The rear side of the smoke hood 25 is provided with multiple auxiliary smoke-smoking ports 253 that communicate with the main smoke-smoking channel 251. The rear side of the smoke hood 25 is provided with a cover plate assembly 29 that covers the multiple auxiliary smoke-smoking ports 253 in a natural state. A linkage assembly 210 is provided between the cover plate assembly 29 and the hood 26, which drives the cover plate assembly 29 to open the auxiliary smoke-smoking ports 253 during the upward rotation of the hood 26 by 90 degrees.

[0043] Such as 8 and Figure 9 As shown, the cover assembly 29 includes two guide shafts 291 positioned on the rear side of the smoke hood 25, a first cover plate 292 with both ends raised and lowered on the guide shafts 291, a first sealing ring 293 positioned on the first cover plate 292 and used to abut against the rear side of the smoke hood 25 to cover multiple auxiliary smoke inlets 253, a first spring 294 sleeved on the guide shafts 291 with its upper end pressed against the bottom of the first cover plate 292, and an anti-loosening nut 295 threaded to the upper end of the guide shafts 291 to prevent the first cover plate 292 from falling out. When the first spring 294 is not subjected to other external forces, the first cover plate 292 covers the multiple auxiliary smoke inlets 253, and the linkage assembly 210 is used to drive the first cover plate 292 to move downward to open the auxiliary smoke inlets 253. The cover assembly 29 and the linkage assembly 210 separate the cavity between the rear side of the smoke hood 25 and the lower inner side of the cover body 26 when the cover assembly 29 is open.

[0044] Such as 8 and Figure 9 As shown, the linkage assembly 210 includes a first linkage plate 2101 disposed on the top of the first cover plate 292 and extending rearward, and a second linkage plate 2102 disposed on the inner side of the cover 26. During the process of the cover 26 rotating upward 90 degrees, the first linkage plate 2101 presses the second linkage plate 2102 downward to overcome the elastic force of the first spring 294, so that the auxiliary smoke inlet 253 is opened during the downward movement of the first cover plate 292. After the first linkage plate 2101 and the second linkage plate 2102 abut against each other, they separate the cavity between the rear side of the smoke collection hood 25 and the lower inner side of the cover 26.

[0045] Implementation Results: Using natural gas as an energy source reduces smoke production during grilling and eliminates charcoal ash residue, making cleaning and maintenance convenient; multiple straight-tube burners 22 can be controlled individually, allowing users to adjust the heat according to their needs, saving gas consumption, improving overall temperature control accuracy, and supporting zoned temperature control; the movable cabinet 11 facilitates relocation, and the shelf 14 facilitates food storage; when the cover 26 is closed, it rests on the shell 21 and covers the opening area of ​​the shell 21 and the smoke hood 25, serving functions such as smoldering, temporary rain protection, post-grilling heat preservation, and dust prevention during storage. The formed air inlet 262 provides oxygen for combustion during smoldering, while the cover assembly 29 naturally covers the auxiliary... The auxiliary smoke inlet 253 avoids affecting the main smoke inlet 252's extraction of oily fumes. Through the design of the smoke collection hood 25 and the smoke extraction device 13, the oily fumes generated during grilling can be extracted. At the same time, after the hood 26 is rotated upwards by 90 degrees and opened, some overflowing oily fumes can also enter the main smoke extraction channel 251 of the smoke collection hood 25 along the auxiliary smoke extraction channel 263 and the auxiliary smoke extraction inlet 253. Because the hood 26 has a large coverage area, the extraction range of overflowing oily fumes is larger, so as to further extract the overflowing oily fumes. Finally, the oily fumes extracted in a concentrated manner can be used with relevant oil fume purifiers for oil fume purification treatment to reduce air pollution and thus solve the problem of oily fume pollution of the environment and harm to health.

[0046] When the cover plate assembly 29 is not subjected to external force, the first cover plate 292 assembly 29 covers multiple auxiliary smoke inlets 253 via the first spring 294, and the first sealing ring 293 inside the first cover plate 292 seals the connection. During the upward rotation of the cover body 26 by 90 degrees, the linkage assembly 210 drives the first cover plate 292 to move downward. At this time, the first spring 294 is compressed, and the first cover plate 292 opens the auxiliary smoke inlets 253 during its downward movement. During the upward rotation of the cover body 26 by 90 degrees, the first linkage plate 2101 presses down on the second linkage plate 2102 with the elastic force of the first spring 294, causing the first cover plate 292 to open the auxiliary smoke inlets 253 during its downward movement. At the same time, the first linkage plate 2101 and the second linkage plate 2102 abut against each other, separating the cavity between the rear side of the smoke collection hood 25 and the lower inner side of the cover body 26, thereby reducing the volume of the auxiliary smoke channel 263 and improving the efficiency of the oil fume being sucked in from the auxiliary smoke inlets 253.

[0047] The fume extraction device 13 includes an air collection box 131, a fan 132, a square and round connector 133, and an air outlet pipe 134. During the operation of the fan 132, the air in the air collection box 131 is discharged from the air outlet pipe 134, thereby creating a negative pressure in the air collection box 131. This causes the oily fumes to enter the air collection box 131 along the smoke inlet and smoke passage of the fume hood 25 and be discharged through the air outlet pipe 134, thus achieving the extraction of oily fumes generated during the grilling process.

[0048] During the grilling process, the grease and other oil that drips onto the base plate 211 will flow into the oil drain port 2111 in the recessed part under the action of gravity, and then drip into the water tray 23 (pre-filled with water) for cooling and collection, which facilitates the collection of grease generated during the grilling process; at the same time, each recessed part of the base plate 211 is located between two adjacent straight tube burners 22. When the grill rack assembly 24 is disassembled, the oil drain port 2111 and the straight tube burner 22 do not dry out, which facilitates the cleaning of the base plate 211.

[0049] The barbecue grill assembly 24 includes a first barbecue grill 241 and a second barbecue grill 242. The height of the second barbecue grill 242 is lower than that of the first barbecue grill 241. Potatoes, sweet potatoes, and other foods that require a longer grilling time can be placed on the second barbecue grill 242. Its zigzag design helps to limit movement. Additionally, the housing 21 can accommodate two individual first barbecue grills 241, or one first barbecue grill 241 and two second barbecue grills 242, depending on actual needs. The back burner 27 is used to assist grilling and heat preservation. A third barbecue grill 28 is installed within the smoke hood 25. With the combined effect of the airflow through the third barbecue grill 28 and the back burner 27, grilling can also be done on the third barbecue grill 28, or grilled food can be placed on the third barbecue grill 28 to keep it warm.

[0050] Example 2: A multi-functional integrated oven cart, such as Figure 10 and Figure 11 As shown, the difference from Embodiment 1 lies in the different structures of the cover plate assembly 29 and the linkage assembly 210.

[0051] like Figure 10 and Figure 11 As shown, the cover plate assembly 29 includes a second cover plate 296 rotatably connected to the rear side of the smoke hood 25 at its bottom, a second sealing ring 297 disposed on the second cover plate 296 and used to abut against the rear side of the smoke hood 25 to cover multiple auxiliary smoke inlets 253, arc-shaped guide sleeves 298 disposed at both ends of the second cover plate 296, an arc-shaped shaft 299 disposed on the rear side of the smoke hood 25 and passing through the arc-shaped guide sleeves 298, a second spring 2910 sleeved on the arc-shaped shaft 299 and passing through one end of the arc-shaped guide sleeve 298, and an anti-detachment end cap 2911 threadedly connected to the end of the arc-shaped guide sleeve 298. When the second spring 2910 is not subjected to other external forces, the second cover plate 296 covers multiple auxiliary smoke inlets 253, and the linkage assembly 210 is used to drive the second cover plate 296 to rotate outward to open the auxiliary smoke inlets 253.

[0052] like Figure 10 and Figure 11As shown, the bottom of the second cover plate 296 is provided with a rotating shaft 2961 rotatably connected to the rear side of the smoke hood 25. The linkage assembly 210 includes two linkage gears 2103 disposed at the ends of the rotating shaft and an arc-shaped rack 2104 disposed on the inner walls of both sides of the hood 26 with its center located on the rotation axis of the hood 26. The arc-shaped rack 2104 meshes with the linkage gears 2103 as the hood 26 rotates to drive the second cover plate 296 to rotate. A flexible rubber strip 2962 is provided on the top of the second cover plate 296. After the hood 26 rotates upward by 90 degrees to drive the second cover plate 296 to rotate, the flexible rubber strip 2962 abuts against the inner side of the hood 26, so that the second cover plate 296 and the flexible rubber strip 2962 separate the cavity at the rear side of the smoke hood 25 from the cavity at the lower inner side of the hood 26. When the hood 26 is closed, the arc-shaped rack 2104 and the linkage gears 2103 are in a disengaged state.

[0053] Implementation effect: When the second cover plate 296 is not subjected to external force, the second cover plate 296 covers multiple auxiliary smoke inlets 253 under the action of the second spring 2910, and the second sealing ring 297 on the second cover plate 296 seals the connection. During the upward rotation of the hood 26 by 90 degrees, the linkage component 210 drives the second cover plate 296 to rotate outward to open the auxiliary smoke inlets 253. During the upward rotation of the hood 26 by 90 degrees, the arc-shaped rack 2104 meshes with the linkage gear 2103, driving the second cover plate 296 to rotate, thereby opening the auxiliary smoke inlets 253. At the same time, the flexible rubber strip 2962 on the second cover plate 296 abuts against the inner side of the hood 26 to separate the cavity at the rear of the smoke collection hood 25 from the lower inner side of the hood 26, thereby reducing the volume of the auxiliary smoke channel 263 and improving the efficiency of the oil fume being sucked in from the auxiliary smoke inlets 253.

[0054] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A multi-functional integrated oven cart, characterized in that: Includes a fuel storage and fume extraction unit (1) and a barbecue operation unit (2); The fuel storage and exhaust unit includes a movable cabinet (11), a gas cylinder (12) installed in the cabinet (11), an exhaust device (13) installed in the cabinet (11), and two shelves (14) installed on the top sides of the cabinet (11). The barbecue operation unit (2) includes a shell (21) detachably mounted on the cabinet (11), multiple straight tube burners (22) arranged in the shell (21) and individually controllable, a water tray (23) pulled out at the bottom of the shell (21), a barbecue rack assembly (24) detachably mounted in the shell (21), a smoke hood (25) located on the rear side of the shell (21) and connected to the fume extraction device (13) after the shell (21) is installed, and a cover (26) movably mounted on the smoke hood (25). The upper surface of the shell (21) is flush with the upper surface of the platform (14). The gas cylinder (12) supplies gas to the multiple straight tube burners (22). The smoke hood (25) is provided with a main smoke extraction channel (251) connected to the fume extraction device (13). The smoke hood (25) is provided with multiple main smoke extraction ports (252) inclined towards the shell (21). The cover (26) is rotatably connected to both sides of the smoke collection hood (25); when the cover (26) is closed, the cover (26) rests on the housing (21) and covers the opening area of ​​the housing (21) and the smoke collection hood (25), and an air inlet (262) is left between the rear side of the cover (26) and the top of the smoke collection hood (25) for air intake; when the cover (26) is rotated upward 90 degrees to open, the cover (26) rests on the housing (21) for fixation, and an auxiliary smoke extraction channel (263) is formed between the inner side of the cover (26), the outer side of the smoke collection hood (25) and the upper rear surface of the housing (21), and the smoke collection hood (26) is formed. The rear side of the hood (25) is provided with a plurality of auxiliary smoking ports (253) communicating with the main smoking channel (251). The rear side of the smoke collection hood (25) is provided with a cover plate assembly (29) that covers the plurality of auxiliary smoking ports (253) in a natural state. A linkage assembly (210) is provided between the cover plate assembly (29) and the hood body (26) to drive the cover plate assembly (29) to open the auxiliary smoking ports (253) during the process of the hood body (26) rotating upward 90 degrees. The cover plate assembly (29) and the linkage assembly (210) separate the cavity between the rear side of the smoke collection hood (25) and the lower inner side of the hood body (26) when the cover plate assembly (29) is opened.

2. The multifunctional integrated oven cart according to claim 1, characterized in that: The cover assembly (29) includes two guide shafts (291) set on the rear side of the smoke collection hood (25), a first cover plate (292) with both ends raised and lowered on the guide shafts (291), a first sealing ring (293) set on the first cover plate (292) and used to abut against the rear side of the smoke collection hood (25) to cover multiple auxiliary smoke inlets (253), a first spring (294) sleeved on the guide shafts (291) and with its upper end pressed against the bottom of the first cover plate (292), and an anti-loosening nut (295) threaded to the upper end of the guide shafts (291) to prevent the first cover plate (292) from falling out; when the first spring (294) is not subjected to other external forces, the first cover plate (292) covers multiple auxiliary smoke inlets (253), and the linkage assembly (210) is used to drive the first cover plate (292) to move downward to open the auxiliary smoke inlets (253).

3. The multifunctional integrated oven cart according to claim 2, characterized in that: The linkage assembly (210) includes a first linkage plate (2101) disposed on the top of the first cover plate (292) and extending rearward, and a second linkage plate (2102) disposed on the inner side of the cover (26). During the process of the cover (26) rotating upward 90 degrees, the first linkage plate (2101) presses down on the second linkage plate (2102) to overcome the elastic force of the first spring (294), so that the auxiliary smoke inlet (253) is opened during the downward movement of the first cover plate (292). After the first linkage plate (2101) and the second linkage plate (2102) abut against each other, they separate the cavity between the rear side of the smoke collection hood (25) and the lower inner side of the cover (26).

4. The multifunctional integrated oven cart according to claim 1, characterized in that: The cover assembly (29) includes a second cover plate (296) rotatably connected to the rear side of the smoke hood (25) at its bottom; a second sealing ring (297) disposed on the second cover plate (296) and used to abut against the rear side of the smoke hood (25) to cover multiple auxiliary smoke inlets (253); arc-shaped guide sleeves (298) disposed at both ends of the second cover plate (296); an arc-shaped shaft (299) disposed on the rear side of the smoke hood (25) and passing through the arc-shaped guide sleeves (298); and a sleeve. A second spring (2910) extends through one end of an arc-shaped guide sleeve (298) on an arc-shaped shaft (299), and an anti-detachment end cap (2911) is threaded to the end of the arc-shaped guide sleeve (298). When the second spring (2910) is not subjected to other external forces, the second cover plate (296) covers multiple auxiliary smoke ports (253), and the linkage component (210) is used to drive the second cover plate (296) to rotate outward to open the auxiliary smoke ports (253).

5. A multi-functional integrated oven cart according to claim 4, characterized in that: The bottom of the second cover plate (296) is provided with a rotating shaft (2961) rotatably connected to the rear side of the smoke collection hood (25). The linkage assembly (210) includes two linkage gears (2103) disposed at the ends of the rotating shaft (2961) and an arc-shaped rack (2104) disposed on the inner walls of both sides of the hood (26) with its center located on the rotation axis of the hood (26). The arc-shaped rack (2104) interacts with the linkage gears (2961) during the rotation of the hood (26). 103) Engage to drive the second cover plate (296) to rotate; the top of the second cover plate (296) is provided with a flexible rubber strip (2962), after the cover body (26) rotates upward 90 degrees to drive the second cover plate (296) to rotate, the flexible rubber strip (2962) abuts against the inner side of the cover body (26); the second cover plate (296) and the flexible rubber strip (2962) separate the cavity between the rear side of the smoke collection hood (25) and the lower inner side of the cover body (26).

6. The multifunctional integrated oven cart according to claim 1, characterized in that: The cabinet (11) has air outlets (112) on both sides and the back. The fume extraction device (13) includes an air collection box (131) installed inside the cabinet (11) and connected to the main smoke extraction channel (251) of the fume hood (25), a fan (132) installed inside the air collection box (131), a square-round connector (133) connected to the bottom of the air collection box (131) and connected to the air outlet of the fan (132), and an air outlet pipe (134) connected to the square-round connector (133) and passing through one of the air outlets (112) of the cabinet (11).

7. The multifunctional integrated oven cart according to claim 1, characterized in that: Two reinforcing plates (15) are respectively provided between the two sides of the cabinet (11) and the adjacent shelf (14).

8. The multifunctional integrated oven cart according to claim 1, characterized in that: The top of the shell (21) is provided with a corrugated bottom plate (211), and a plurality of oil drain ports (2111) are provided in the middle of each recessed part of the bottom plate (211). The water receiving tray (23) is used to receive oil dripping from the oil drain ports (2111). Each recessed part of the bottom plate (211) is located between two adjacent straight tube burners (22).

9. A multi-functional integrated oven cart according to claim 1, characterized in that: The housing (21) has a mounting groove (212) on the front and rear sides of the top, and a support shaft (213) is provided on the front and rear sides inside the housing (21). The barbecue rack assembly (24) includes a plurality of first barbecue racks (241) on the front and rear sides respectively for resting on the mounting grooves (212) on the front and rear sides, and a plurality of second barbecue racks (242) on the front and rear sides respectively for resting on the support shafts (213) on the front and rear sides and in a wavy shape. The height of the second barbecue rack (242) is lower than the height of the first barbecue rack (241).

10. A multi-functional integrated oven cart according to claim 1, characterized in that: The smoke hood (25) is located in front of the main smoke duct (251) and has a back stove (27) for auxiliary grilling, heat preservation and independent control. The gas canister (12) supplies gas to the back stove (27). A third grill (28) is provided inside the smoke hood (25) and is located above the back stove (27).

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