Oven with external burner

Abstract

The utility model discloses an oven with an external burner, which is characterized in that the burner is arranged at a functional opening at the lower part of an integrally formed oven body, so that air at the functional opening is heated when the burner burns, and the heated air rises to realize the temperature rise of an oven cavity; and air below the functional openings enters the functional openings under the action of air pressure so as to provide enough oxygen for the corresponding combustors, so that more sufficient combustion is ensured, and the energy conversion efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of ovens, and in particular relates to an oven with an external burner. Background Art

[0002] The existing oven can refer to the Chinese patent number CN202320645146.6, which discloses an oven with convenient disassembly and assembly of burners. The air supply component continuously supplies air to each burner for combustion so that each burner located in the oven body uniformly heats the air inside the oven body, and the food is baked by the heated air. In order to better improve the efficiency of thermal energy utilization, the circumference and lower end of the oven body are closed, and an opening is set at the upper end to reduce the circumferential and downward heat diffusion of the heated air, so as to more efficiently rise to bake the food above the oven body.

[0003] However, due to the closure of the circumference and the bottom, the air in the furnace is burned and heated to rise, so that the oxygen content in the air in the furnace is low, resulting in incomplete combustion of the burner and low energy conversion efficiency. At the same time, the burner is built-in, which blocks the operating space and makes cleaning inconvenient. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an oven with an external burner, in which the burner is arranged at a functional opening below an integrally formed furnace body so that the air at the functional opening is heated when the burner burns, and the heated air rises to achieve a temperature increase in the furnace cavity. In addition, the air below the functional opening enters the functional opening under the action of air pressure to provide sufficient oxygen for the corresponding burner to ensure more complete combustion and improve energy conversion efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: comprising: a furnace frame; a furnace body, which is integrally formed and arranged on the furnace frame, wherein a furnace cavity opening upward is arranged in the furnace body, a functional opening is arranged at the bottom of the furnace cavity, and a guide surface which is arranged adjacent to the functional opening and arched upward; a burner arranged at the functional opening, wherein the burner is used to burn at the functional opening to heat the air.

[0006] The utility model is further configured as follows: a flame guide portion is provided on the inner peripheral wall of the functional opening, a combustion domain is provided on the burner, the combustion domain and the flame guide portion are arranged correspondingly in position, and the combustion domain and the flame guide portion are arranged at an interval.

[0007] The utility model is further configured as follows: the number of the functional openings is several and they are arranged at intervals, the number of the burners is arranged corresponding to the number of the functional openings, each of the burners and the functional openings is arranged in a long strip shape, each of the burners is provided with a plurality of combustion ports along the length direction, and each of the combustion ports is located above the corresponding functional opening.

[0008] The utility model is further configured as follows: each of the burners is arranged on the furnace frame, each of the functional openings is located at both ends of the length of the corresponding burner and is respectively provided with a built-in groove, and each of the built-in grooves allows the corresponding burner to enter the furnace cavity from bottom to top.

[0009] The utility model is further configured as follows: a long strip-shaped protective piece is respectively arranged above each of the burners in the furnace cavity, and a vertical projection of each of the functional openings falls on the corresponding protective piece.

[0010] The utility model is further configured as follows: placement grooves are respectively arranged at both ends of the length of each protective member in the furnace cavity, and both ends of each protective member are respectively placed in the corresponding placement grooves.

[0011] The utility model is further configured as follows: the inner peripheral wall of the furnace body is configured to expand vertically upward.

[0012] The utility model is further configured as follows: the furnace rack is provided with a plurality of collecting pieces below the functional openings, each of the collecting pieces is arranged along the arrangement direction of the functional openings, each of the collecting pieces is arranged corresponding to one or multiple adjacent functional openings to collect garbage dropped from the corresponding functional openings; the vertical projection of each functional opening falls on the corresponding collecting piece.

[0013] The utility model is further configured as follows: a first placement table extending outward is integrally formed on the outer circumference of the upper end of the furnace body, a ring wall extending upward is integrally formed on the outer circumference of the first placement table, and a second placement table extending outward is integrally formed on the outer circumference of the upper end of the ring wall; a grill is placed on the first placement table, and the grill is circumferentially limited to the inner circumference of the ring wall; the second placement table is placed on the furnace rack to be vertically supported by the furnace rack; the ring wall cooperates with the furnace rack to be vertically limited; a U-shaped upper side plate is arranged above the second placement table, and the upper side plate is placed on the second placement table to be vertically supported by the second placement table; the upper side plate is provided with a mounting portion located on the inner circumference of the ring wall, and the mounting portion cooperates with the ring wall to be vertically limited.

[0014] The utility model is further configured as follows: a furnace cover is hingedly connected to the upper side plate.

[0015] By adopting the above technical solution, the beneficial effects achieved are as follows:

[0016] 1. Operate the control knob to open and close the combustion of different burners and control the size. The air at the corresponding functional opening is heated by the combustion of the burner. The air rises and enters the furnace cavity to heat the furnace cavity. The heated furnace cavity can bake the food above the furnace cavity. When multiple burners are heated separately, they can heat up specific areas separately, and when heated comprehensively, they can heat up all spaces in the furnace cavity more evenly.

[0017] 2. The temperature of the air at each functional opening rises, which will reduce the air pressure at the corresponding location. As a result, the air below the corresponding functional opening will enter the functional opening under the action of air pressure and airflow to supplement oxygen at the corresponding burner, thereby ensuring sufficient oxygen supply to each burner so that each burner can fully burn and improve energy conversion efficiency. In addition, each burner is arranged at the functional opening. Although part of the heat energy will be conducted downward to the bottom of the functional opening due to combustion, most of the heat energy will enter the furnace cavity under the action of rising heat flow, that is, the heat energy increased by full combustion is greater than the heat energy diffused from the functional opening.

[0018] 3. The setting of the guide surface makes the airflow diffused from the functional openings be guided upward, thereby preventing the airflow at each functional opening from flowing toward the adjacent functional openings to prevent the heat flow carried by the airflow from diffusing to the furnace body through the adjacent functional openings.

[0019] 4. The setting of the guide surface and the functional opening also has the function of removing garbage, including food residues, grease, etc., so that the fallen garbage is guided toward the functional opening under the action of the guide surface, and leaves the furnace cavity through the functional opening for garbage discharge. The garbage in various places is discharged from the nearest functional opening, which greatly increases the smoothness of garbage discharge.

[0020] 5. The furnace body is made of enamel material, which has better heat preservation effect than the furnace body made of metal plate, so as to reduce the energy loss in the furnace cavity caused by the heat diffusion of the furnace body itself, thereby improving the use efficiency of heat energy. At the same time, the furnace body is made of enamel material and is integrally formed, so that the furnace body has no assembly gaps, so as to eliminate the leakage of liquid garbage (especially grease) caused by the assembly gaps, and also eliminate the phenomenon of enamel component explosion caused by assembly. In addition, the enamel furnace body is also easy to clean;

[0021] 6. The burner is placed at the bottom, making it easier to clean the inner wall of the furnace without being disturbed by the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 This is an assembly diagram of the first embodiment of the utility model;

[0024] Figure 2 This is an exploded view of the first embodiment of the utility model;

[0025] Figure 3 It is an assembly diagram of part of the structure in the first embodiment of the utility model;

[0026] Figure 4 It is an exploded view of a part of the structure in the first embodiment of the present utility model;

[0027] Figure 5 It is a cross-sectional view of a part of the structure in the first embodiment of the utility model;

[0028] Figure 6 for Figure 5 A partial enlarged view of

[0029] Figure 7 for Figure 1 A magnified view of middle;

[0030] Figure 8 It is a parts diagram of the mounting member in the first embodiment of the utility model;

[0031] Fig. 9 It is a parts diagram of the workbench in the first embodiment of the utility model;

[0032] Fig.10 It is a parts diagram of the collector in the first embodiment of the present utility model;

[0033] Fig.11 It is an assembly diagram of part of the structure in the first embodiment of the utility model;

[0034] Fig.12 This is a diagram of the stable changes in the furnace body of an oven with an external burner and an oven with a built-in burner.

[0035] Labels: 1. Furnace frame; 11. Front support; 12. Rear support; 13. Mounting piece; 14. Workbench; 15. Support rail; 131. Snap-fitting groove; 132. Snap-fitting hole; 141. First snap-fitting piece; 142. Second snap-fitting piece; 151. Positioning part; 1321. Snap-fitting part; 1322. Loading part; 2. Furnace body; 21. Furnace cavity; 22. Functional opening; 23. Guide surface; 24. Built-in groove; 25. Placement groove; 26. First placement table; 27. Ring wall; 28. a second placement table; 221, flame guide; 3, gas assembly; 31, control knob; 32, burner; 321, combustion port; 322, combustion zone; 4, protective member; 5, grill; 6, upper side plate; 61, mounting portion; 7, stove cover; 81, automatic rotator; 82, grill fork; 9, collecting member; 91, handle; 92, collecting trough; 93, surrounding edge; 911, grip section; 912, first bending section; 913, extension section; 914, second bending section; 915, hinged section. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the present invention and thus more clearly define the scope of protection claimed for the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention.

[0037] Embodiment 1:

[0038] like Figure 1-Figure 11 As shown, the utility model discloses a burner external type oven, comprising:

[0039] The furnace frame 1 is assembled by splicing a plate body, a roller and other structures, and is square in shape as a whole;

[0040] A furnace body 2, which is formed of an enamel material in one piece and is installed above the furnace frame 1, wherein the furnace body 2 is composed of a peripheral wall and a bottom plate so that the furnace body 2 forms a furnace cavity 21 which is open upwards, and in addition, the bottom plate of the furnace cavity 21 is provided with four functional openings 22 arranged at intervals in the left-right direction, and an upwardly arched guide surface 23 is provided between adjacent functional openings 22;

[0041] The gas component 3 is arranged on the stove frame 1, and the gas component 3 is composed of a plurality of control knobs 31, four burners 32 (tubular) and other structures. Each control knob 31 is located on the upper front side of the stove frame 1 and forms a panel, and each burner 32 is located in the stove frame 1 and is arranged at intervals along the left and right directions, so that the gas source (gas tank, etc.) can be connected to the gas component 3, and the opening and closing and size of the gas pipe combustion can be controlled by rotating the control knob 31, and each burner 32 is located at the corresponding functional opening 22.

[0042] Therefore, the burner-external oven of the present invention can achieve the following beneficial effects:

[0043] 1. Operate the control knob 31 to control the opening and closing and size of different burners 32. The air at the corresponding functional opening 22 is heated by the combustion of the burner 32. The air is heated and rises to enter the oven cavity 21 to heat the oven cavity 21. The heated oven cavity 21 can bake the food above the oven cavity 21. When multiple burners 32 are heated separately, they can heat specific areas separately. When fully heated, each space in the oven cavity 21 can be heated more evenly.

[0044] 2. The temperature of the air at each functional opening 22 rises, which will cause the air pressure at the corresponding location to decrease. As a result, the air below the corresponding functional opening 22 will enter the functional opening 22 under the action of air pressure and airflow to supplement oxygen at the corresponding burner 32, thereby ensuring that each burner 32 is fully supplied with oxygen so that each burner 32 can be fully burned to improve energy conversion efficiency. In addition, each burner 32 is arranged at the functional opening 22. Although part of the heat energy will be conducted downward to the bottom of the functional opening 22 due to combustion, most of the heat energy will enter the furnace cavity 21 due to the rising heat flow, that is, the heat energy increased by full combustion is greater than the heat energy diffused from the functional opening 22.

[0045] 3. The arrangement of the guide surface 23 guides the airflow diffused from the functional openings 22 to rise, thereby preventing the airflow at each functional opening 22 from flowing toward the adjacent functional openings 22 to prevent the heat flow carried by the airflow from diffusing to the outside of the furnace body 2 through the adjacent functional openings 22 .

[0046] 4. The arrangement of the guide surface 23 and the functional opening 22 also has the function of removing garbage, wherein the garbage includes food residues, grease, etc., so that the fallen garbage is guided toward the functional opening 22 under the action of the guide surface 23, and leaves the furnace cavity 21 through the functional opening 22 for garbage discharge, and the garbage in various places is discharged from the nearest functional opening 22, which greatly increases the smoothness of garbage discharge.

[0047] 5. The furnace body 2 is made of enamel material. Compared with the furnace body 2 made of metal plate, it has better thermal insulation effect, so as to reduce the energy loss in the furnace cavity 21 caused by the heat diffusion of the furnace body 2 itself, thereby improving the efficiency of heat energy utilization. At the same time, the furnace body 2 is made of enamel material and is integrally formed, so that the furnace body 2 has no assembly gaps, so as to eliminate the leakage of liquid garbage (especially grease) caused by the assembly gaps, and also eliminate the phenomenon of porcelain explosion of enamel components caused by assembly. In addition, the enameled furnace body 2 is also easy to clean.

[0048] 6. The burner 31 is placed at the bottom, making it easier to clean the inner wall of the furnace body 1 without being disturbed by the burner 31 .

[0049] like Fig.12 As shown, when other factors are the same, an oven with an external burner and an oven with a built-in burner are experimented. L1 represents the temperature change in the oven with the external burner, and L2 represents the temperature change in the oven with the built-in burner. L1 heats up in a convex arc shape during the combustion process, while L2 heats up in a concave arc shape during the combustion process, so that L1 burns more completely and heats up faster, so that it approaches the limit temperature faster and can be used.

[0050] Among them, a flame guide portion 221 is arranged on the inner wall of the functional opening 22, and a combustion domain 322 is arranged on the burner 31. The combustion domain 322 is arranged corresponding to the position of the flame guide portion 221, and the combustion domain 322 and the flame guide portion 221 are arranged at an interval. Therefore, when the combustion domain 322 burns, it will be restricted by the flame guide portion 221, so that more heat is locked in the furnace cavity 21, less heat escapes, and energy utilization is improved. The combustion domain 322 and the flame guide portion 221 are arranged at an interval to make room to ensure that the air below is supplemented to the combustion domain 322 to ensure complete combustion.

[0051] Preferably, the guide surface 23 is arranged in an arc shape.

[0052] It should be noted that only part of the structure of the gas assembly 3 is disclosed in this patent, wherein the gas assembly 3 is a common and mature structure in the field of ovens, so it will not be overly elaborated.

[0053] Preferably, each of the burners 32 and functional openings 22 in this embodiment is arranged in a long strip shape, and the length direction is along the front-to-back direction. In addition, combustion domains 322 are arranged on both sides of each of the burners 32, and each combustion domain 322 is provided with a plurality of combustion ports 321 along the length direction, and preferably, each of the combustion ports 321 is located above the corresponding functional opening 22.

[0054] Therefore, 1. the burners 32 arranged left and right are equipped with the combustion ports 321 arranged front and back to fully cover the bottom of the furnace body 2, thereby fully heating the furnace body 2; 2. the combustion ports 321 are located above the functional opening 22 so that the flame burns in the furnace cavity 21, so as to reduce the heat of the flame from diffusing to below the functional opening 22 during the initial diffusion process.

[0055] More preferably, the number of the burner ports 321 arranged along the length direction of the burner 32 is multiple groups, and they are arranged circumferentially to achieve a better combustion effect.

[0056] In other embodiments, the length directions of the burner 32 and the functional opening 22 are along the left-right direction, and the functional openings 22 are arranged along the front-back direction.

[0057] Correspondingly, a semicircular built-in groove 24 is respectively provided at the front and rear ends of each functional opening 22 , and an opening is provided below the built-in groove 24 , and part of the structure of the burner 32 is located in the built-in groove 24 to enable the burner port 321 to rise above the functional opening 22 .

[0058] Therefore, 1. For the most common long strip burner 32, the front and rear ends of the burner 32 installed on the furnace frame 1 are extended out of the furnace body 2 through the built-in groove 24 through the setting of the built-in groove 24, and are installed on the corresponding structure through the extended structure, and the built-in groove 24 can ensure that the burner 32 and the furnace body 2 do not contact or interfere with each other, and prevent mutual squeezing that causes installation failure, bending, etc.; 2. The setting of the opening at the lower end of the built-in groove 24 enables the furnace body 2 installed on the furnace frame 1 to be assembled by disassembling upwards and installing downwards, and the burner 32 is not interfered with during the disassembly and assembly process. Compared with the existing structure in which the burner 32 is built into the furnace body 2, the furnace body 2 is more convenient to disassemble and assemble.

[0059] Preferably, the left and right widths of each functional opening 22 in this embodiment are s1, and the diameter of each burner 32 is s2, 2s2≤s1≤3s2, so as to set the width of the functional opening 22 to match the diameter of the burner 32 to ensure that sufficient oxygen is provided to the burner 32 while minimizing heat diffusion from the functional opening 22.

[0060] In addition, in the furnace chamber 21 of the present embodiment, a long strip-shaped protective member 4 is respectively arranged above each burner 32 , and the vertical projection of each functional opening 22 falls on the corresponding protective member 4 .

[0061] Therefore, 1. for the burner 32, the protective member 4 blocks the burner 32 above the burner 32, so that the garbage falling from the top of the burner 32 cannot fall directly onto the burner 32 to prevent the burning port 321 from being blocked. In addition, the flame of the burner 32 is blocked by the protective member 4 and cannot act directly upward on the food, preventing the food from being directly roasted and causing uneven heating to affect the taste. 2. for the functional opening 22, the protective member 4 blocks the functional opening 22 above the functional opening 22, so that the garbage falling from the top of the functional opening 22 cannot fall directly into the functional opening 22 and leave the furnace body 2, so as to prevent the garbage from falling too fast and splashing when being collected.

[0062] Preferably, the protective member 4 in this embodiment is V-shaped, and the V-shaped opening faces downward. Therefore, the garbage falling on the protective member 4 rolls downward at an angle under the action of the V-shaped protective member 4, and falls on the peripheral wall of the furnace body 2 or the guide surface 23, and finally falls toward the functional opening 22 along the peripheral wall or the guide surface 23. This not only prevents the accumulation of garbage on the protective member 4, but also the garbage leaving the protective member 4 will be impacted when falling on the peripheral wall of the furnace body 2 or the guide surface 23, thereby eliminating a certain amount of kinetic energy, thereby preventing the garbage entering the functional opening 22 from falling too fast.

[0063] Preferably, in the furnace chamber 21 in this embodiment, placement grooves 25 are respectively provided at both ends of the length of each protective member 4 , and both ends of each protective member 4 are respectively placed in the corresponding placement grooves 25 .

[0064] Therefore, 1. The protective member 4 is placed on the furnace body 2 in a simple and detachable manner, so that when the protective member 4 needs to be cleaned or the burner 32 needs to be checked, the protective member 4 can be easily removed and easily put back after the operation is completed. 2. The placement groove 25 is set so that no openings are formed on the surface of the furnace body 2, so that there are no holes or gaps on the inner wall of the integrally formed furnace body 2 to prevent oil leakage.

[0065] Preferably, the inner circumferential wall of the furnace body 2 in this embodiment is flared vertically upward, so that 1. the inclined inner circumferential wall can make the upper opening larger, thereby obtaining a larger baking area with a smaller heating area, and 2. the garbage falling from the upper periphery of the furnace body 2 falls on the inner circumferential wall and is guided by the inner circumferential wall to the functional opening 22 for discharge.

[0066] In addition, the outer circumference of the upper end of the furnace body 2 in this embodiment is integrally formed with a first placement table 26 extending outward, the outer circumference of the first placement table 26 is integrally formed with an annular wall 27 extending upward, and the outer circumference of the upper end of the annular wall 27 is integrally formed with a second placement table 28 extending outward; so that a baking net 5 is placed on the first placement table 26, and the baking net 5 is circumferentially limited to the inner circumference of the annular wall 27; the second placement table 28 is placed on the grate 1 to be vertically supported by the grate 1; and the annular wall 27 cooperates with the grate 1 to limit vertically.

[0067] Therefore, the oven body 2 is installed on the oven frame 1 by cooperating with the second placement table 28 and the annular wall 27 on the oven frame 1, and the grill 5 is placed on the first placement table 26 to support the grill 5, so that food can be placed on the grill 5 for baking, and the first placement table 26 and the oven body 2 below do not need to be provided with an installation structure, so there is no need to open holes and no gaps, so that during the baking process, garbage can only enter the functional opening 22 downward and leave the oven body 2, thereby preventing oil leakage.

[0068] Specifically, the annular wall 27 in this embodiment is provided with multiple openings in the circumferential direction, and correspondingly, the furnace frame 1 is also provided with openings in the circumferential direction, and is assembled by means of bolts and nuts.

[0069] In addition, a U-shaped upper side plate 6 is arranged above the second placing table 28 in this embodiment. The upper side plate 6 is made of enamel material. The upper side plate 6 is placed on the second placing table 28 to be vertically supported by the second placing table 28, and is respectively located on the left, right and rear sides; in addition, the upper side plate 6 is located on the inner periphery of the annular wall 27 and is provided with a mounting portion 61, and the mounting portion 61 cooperates with the annular wall 27 to vertically limit.

[0070] Therefore, 1. The setting of the upper side plate 6 blocks the left, right and rear sides of the upper part of the furnace body 2, and only exposes the front side for operation, so that heat energy is not easily diffused and the temperature at the baking net 5 is increased to improve the efficiency of heat energy utilization. 2. The upper side plate 6 adopts an enamel structure, which is easy to clean. 3. The upper side plate 6 is vertically supported by the second placement table 28, and then installed in cooperation with the annular wall 27. Therefore, the installation position is only the second placement table 28 and the annular wall 27. Similarly, the first placement table 26 and the furnace body 2 below do not need to be set with an installation structure, so there is no need to open holes and there is no gap, so that during the baking process, garbage can only enter the functional opening 22 downward and leave the furnace body 2 to prevent oil leakage.

[0071] Specifically, the annular wall 27 in this embodiment is provided with multiple openings in the circumferential direction, and correspondingly, the upper side plate 6 is also provided with openings in the circumferential direction, and is assembled by means of bolts and nuts.

[0072] In addition, a furnace cover 7 is hinged on the upper side plate 6 in this embodiment. The furnace cover 7 is flipped forward to cover the upper part of the furnace body 2 to achieve upper cover baking, and is flipped backward to open the furnace body 2 to achieve open baking.

[0073] In addition, an automatic rotator 81 and a grilling fork 82 detachably inserted into the automatic rotator 81 are also provided on the right side of the upper side plate 6 in this embodiment, so that the automatic rotator 81 can drive the grilling fork 82 to rotate, thereby realizing automatic flipping grilling.

[0074] The upper side plate 6 in this embodiment is formed by splicing three plates together. In other embodiments, the upper side plate 6 may also be an integrally formed structure.

[0075] Specifically, the upper end of the furnace rack 1 in this embodiment is provided with two front pillars 11 on the front side and two rear pillars 12 on the rear side, and the four corner ends of the second placement table 28 are respectively placed on the front pillars 11 and the rear pillars 12 for support.

[0076] In addition, each front support 11 and each rear support 12 is bolted with an L-shaped mounting member 13, each mounting member 13 is provided with a clamping groove 131 on the top, and a clamping hole 132 is provided in the middle of the mounting member 13, and the clamping hole 132 includes a clamping portion 1321 at the bottom and a loading portion 1322 at the top. In addition, a workbench 14 is provided on the left and right sides of the grate 1, and a first step-shaped clamping member 141 is provided on the front and rear sides of the workbench 14 corresponding to the clamping groove 131, and a second step-shaped clamping member 141 is provided corresponding to the clamping hole 132. The width of the clamping member 142 and the clamping groove 131 is adapted to a section of the small diameter of the first clamping member 141, the width of the clamping portion 1321 is adapted to a section of the small diameter of the second clamping member 142, and the width of the loading portion 1322 is adapted to a section of the large diameter of the second clamping member 142, so that the second clamping member 142 is inserted into the corresponding loading portion 1322 and moves downward so that the second clamping member 142 is inserted into the clamping portion 1321 while the first clamping member 141 is inserted into the clamping groove 131 to complete the assembly, and the disassembly is convenient.

[0077] In addition, the furnace rack 1 in this embodiment is provided with two collecting pieces 9 below the functional openings 22, and each of the collecting pieces 9 is arranged in a left-right arrangement, and correspondingly, each of the collecting pieces 9 is arranged corresponding to two adjacent functional openings 22. In addition, each collecting piece 9 is provided with a collecting groove 92, and the vertical projection of each functional opening 22 falls in the corresponding collecting groove 92, that is, the left collecting piece 9 is located directly below the two functional openings 22 on the left, and the right collecting piece 9 is located directly below the two functional openings 22 on the right.

[0078] Therefore, the garbage dropped from each functional opening 22 falls downward into the collecting groove 92 of the corresponding collecting member 9 to be collected.

[0079] In addition, support rails 15 are provided on the left and right sides of each collecting piece 9 on the grate 1, and correspondingly, a peripheral edge 93 is provided on the upper periphery of the collecting piece 9, so that the collecting piece 9 can be inserted into the grate 1 from the rear side to the front, and the collecting piece 9 can be stably supported under the peripheral edge 93 by the support rails 15. In addition, a handle 91 is provided on the rear side of the collecting piece 9, so that the collecting piece 9 can be disassembled from the grate 1 by operating the handle 91.

[0080] In addition, a limiting portion 151 protruding upward and in an inverted V shape is provided on the rear side of each supporting guide rail 15 so as to limit the rearward escape of the collecting member 9 .

[0081] The handle 91 in this embodiment is formed by bending a rod body in multiple sections. Specifically, the handle 91 includes a gripping section 911 and a first bending section 912, an extension section 913, a second bending section 914 and a hinge section 915 symmetrically located at both ends of the gripping section 911. The length direction of the gripping section 911 extends in the left-right direction. The first bending section and the gripping section 911 are vertically arranged. The extension section 913 is synchronously perpendicular to the gripping section 911 and the first bending section. The second bending section is perpendicular to the gripping section 911, and the angle between the second bending section and the extension section 913 is 30°. -60°, the hinged section 915 is extended left and right so that it is hinged on the outer wall of the rear side of the collecting piece 9 through the two hinged sections 915, and when it is flipped so that the second bent section is against the outer wall of the rear side of the collecting piece 9, the extended section 913 extends backward so that the holding section 911 is moved backward for easy holding. In addition, when the collecting piece 9 is not installed on the grate 1, the extended section 913 can be flipped to the top of the collecting piece 9 by flipping, and the extended section 913 is facing front and back downward, and the first bent section and the holding section 911 enter the collecting groove 92 for folding and storage.

[0082] In other embodiments, four collecting members 9 may be used, and each collecting member 9 corresponds to a functional opening 22 .

[0083] Embodiment 2:

[0084] A burner-external oven, the main structure of which is the same as that of the first embodiment, except that the gas assembly 3 is arranged on the oven body 2.

[0085] Embodiment three:

[0086] A burner-external oven has the same main structure as that of the first embodiment, except that the burners 32 are disc-shaped and arranged in a matrix, and correspondingly, the functional openings 22 are also circular.

[0087] Embodiment 4:

[0088] A baking oven with an external burner has a main structure similar to that of the first embodiment, except that a protective member 4 is either welded or integrally formed on the oven body 2.

[0089] Embodiment five:

[0090] A burner-external oven has the same main structure as that of the first embodiment, except that only one functional opening 22 and one burner 32 are provided.

[0091] The above description of the disclosed embodiments enables professionals in the field to implement or use the utility model. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model.

Claims

1. A burner-external oven, characterized in that: include: A furnace rack (1); A furnace body (2), the furnace body (2) being integrally formed, the furnace body (2) being arranged on the furnace frame (1), the furnace body (2) being provided with a furnace cavity (21) opening upward, the bottom of the furnace cavity (21) being provided with a functional opening (22), and a guide surface (23) being arranged adjacent to the functional opening (22) and arching upward; A burner (32) is arranged at the functional opening (22), and the burner (32) is used for burning at the functional opening (22) to heat air.

2. The external burner oven according to claim 1, characterized in that: A flame guide portion (221) is provided on the inner peripheral wall of the functional opening (22), and a combustion zone (322) is provided on the burner (32); the combustion zone (322) and the flame guide portion (221) are arranged in a position corresponding to each other, and the combustion zone (322) and the flame guide portion (221) are arranged at an interval.

3. The external burner oven according to claim 1 or 2, characterized in that: The number of the functional openings (22) is several and arranged at intervals. The number of the burners (32) is arranged corresponding to the number of the functional openings (22). Each of the burners (32) and the functional openings (22) is arranged in a long strip shape. Each of the burners (32) is provided with a plurality of combustion ports (321) along the length direction. Each of the combustion ports (321) is located above the corresponding functional opening (22).

4. The external burner oven according to claim 3, characterized in that: Each of the burners (32) is arranged on the furnace frame (1), and each of the functional openings (22) is provided with built-in grooves (24) at both ends of the length of the corresponding burner (32), and each of the built-in grooves (24) allows the corresponding burner (32) to enter the furnace cavity (21) from bottom to top.

5. The external burner oven according to claim 3, characterized in that: A long strip-shaped protective member (4) is provided above each of the burners (32) in the furnace cavity (21), and a vertical projection of each of the functional openings (22) falls on the corresponding protective member (4).

6. The external burner oven according to claim 5, characterized in that: Placement grooves (25) are respectively provided at both ends of the length of each protection member (4) in the furnace cavity (21), and both ends of each protection member (4) are respectively placed in the corresponding placement groove (25).

7. The external burner oven according to claim 5, characterized in that: The inner peripheral wall of the furnace body (2) is arranged to expand upward in the vertical direction.

8. The oven with external burner according to claim 3, characterized in that: The furnace rack (1) is provided with a plurality of collecting members (9) located below the functional opening (22), each of the collecting members (9) being arranged along the arrangement direction of the functional openings (22), and each of the collecting members (9) being arranged corresponding to one or a plurality of adjacent functional openings (22) to collect garbage dropped from the corresponding functional openings (22); The vertical projection of each functional opening (22) falls on the corresponding collecting member (9).

9. The oven with external burner according to claim 1, characterized in that: The furnace body (2) is integrally formed with a first placement table (26) extending outward on the outer circumference of the upper end, the first placement table (26) is integrally formed with an annular wall (27) extending upward on the outer circumference, and the annular wall (27) is integrally formed with a second placement table (28) extending outward on the outer circumference of the upper end; A grilling net (5) is placed on the first placement table (26), and the grilling net (5) is circumferentially limited to the inner periphery of the annular wall (27); The second placement table (28) is placed on the furnace rack (1) to be vertically supported by the furnace rack (1); The annular wall (27) cooperates with the furnace frame (1) to limit vertical position; A U-shaped upper side plate (6) is arranged above the second placement table (28), and the upper side plate (6) is placed on the second placement table (28) to be vertically supported by the second placement table (28); The upper side plate (6) is provided with a mounting portion (61) located on the inner periphery of the annular wall (27), and the mounting portion (61) cooperates with the annular wall (27) to limit vertical position.

10. The oven with external burner according to claim 9, characterized in that: A furnace cover (7) is hingedly connected to the upper side plate (6).

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