Folding metal oven convenient to store

By setting right-angle shrapnel in the observation window of the folding oven, using elastic force to fix the glass and provide deformation space, the damage problem of the glass during thermal expansion, contraction and carrying is solved, and a more stable structure and portability is achieved.

CN222777225UActive Publication Date: 2025-04-22HANGZHOU TONNY ELECTRIC & TOOLS
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Patent Information

Application Number
CN202421410967.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-04-22
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

The observation window glass of existing folding ovens is prone to cracking under the action of thermal expansion and contraction, and is prone to collision and damage during carrying.

Method used

A right-angle shrapnel is provided in the observation window of the oven. The right-angle shrapnel is opposite to the two adjacent sides of the glass, and the elastic force is used to limit the movement of the glass and provide deformation space for the glass.

Benefits of technology

It effectively prevents the glass from collapsing during thermal expansion and contraction, and reduces bumps and damage during carrying, simplifies the fixed structure of the glass, reduces the weight of the door and the deformation of the sheet metal structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding metal oven convenient to store. The folding metal oven convenient to store comprises an oven body. The door is rotationally connected to the front end of the box body; the observation window is arranged on the door in a penetrating manner; the fixed frame is arranged at the front end of the door; the side socket is arranged on the side edge of the fixed frame; the baffle plate is arranged in the side socket; a right-angle elastic sheet is arranged in the fixed frame; two inner arch parts are arranged on the right-angle elastic sheet; the two inner arch parts abut against the two adjacent side edges of the glass respectively. The box body is used as an oven after being unfolded, and the occupied volume is reduced after the box body is folded; the right-angle elastic piece is used for fixing the glass, and meanwhile, a deformation space is provided for thermal expansion and cold contraction; a gap is reserved between the bottom plate and the partition plate, so that the bearing capacity is improved while the air flow is increased; the locking of two states is realized by a single part, so that the structural complexity is reduced; the net rack can be clamped at different heights, so that the compatibility is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of barbecue products, and in particular relates to a foldable metal oven which is convenient for storage. Background Art

[0002] The foldable storage oven is an innovative kitchen appliance that combines the functions of an oven with the convenience of folding and storage. This type of oven usually has two states: folded and unfolded. In the folded state, the oven is small in size and easy to store and carry; when unfolded, it can be converted into a normal oven form to provide cooking functions. The design of the foldable oven is to solve the problem of inconvenience in carrying during outdoor barbecues or small family gatherings.

[0003] A Chinese patent document with publication number CN216962191U discloses a foldable oven, comprising a base, a front panel being rotatably provided at the front end of the base, a rear panel being rotatably provided at the rear end of the base, side panels being rotatably provided at both left and right ends of the base, and upper ends of the two side panels being rotatably connected to left and right ends of a top cover respectively; a heating tube is provided on the base; the side panels comprise an upper folding plate and a lower folding plate, the upper end of the upper folding plate being rotatably connected to the top cover, the lower end of the lower folding plate being rotatably connected to the base, and the lower end of the upper folding plate being rotatably connected to the upper end of the lower folding plate.

[0004] The door of the above-mentioned foldable oven is provided with glass for observing the specific situation inside the oven. However, since the glass needs to be heated, the glass will be subjected to dimensional changes caused by thermal expansion and contraction for a long time. Moreover, as a foldable oven, it will also face various complex situations such as outdoor carrying and transportation. Therefore, when the glass is fastened and installed, there is a risk of cracking of the glass under the action of thermal expansion and contraction. When the glass is movably installed, the glass will be cracked or damaged due to bumps on the edges during carrying. Utility Model Content

[0005] In order to overcome the technical problems in the prior art that the glass on the oven observation window may crack due to thermal expansion and contraction if installed too tightly, or may be damaged by bumping against corners during movement and carrying if installed too loosely; one purpose of the utility model is to provide a foldable metal oven that is easy to store, by arranging a right-angle spring plate in the observation window of the oven, the right-angle spring plate abuts against two adjacent side edges of the glass, and uses elastic force to limit the movement of the glass in the longitudinal plane, thereby fixing the glass and providing a certain deformation space for the glass.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a foldable metal oven that is easy to store, comprising a box body, which can be folded; a door, which is rotatably connected to the front end of the box body; an observation window, which is arranged on the door through; a fixed frame, which is arranged at the front end of the door and is opposite to the observation window; a side socket, which is arranged on the side of the fixed frame; glass, which is inserted into the fixed frame through the side socket, and the glass completely covers the observation window; a baffle, which is arranged in the side socket and closes the side socket; wherein a right-angle spring sheet is arranged at one end of the fixed frame away from the side socket; two inner arches are arranged on the right-angle spring sheet; the two inner arches are respectively abutted against two side edges adjacent to the glass.

[0007] The elastic force of the inner arch pushes the glass to be tightly pressed against the baffle and the inner wall of the fixed frame, thereby fixing the glass and providing a certain deformation space for the glass. The right-angle spring piece is formed by bending sheet metal, with low manufacturing cost, and can provide thrust in two directions for the glass at the same time, thereby simplifying the parts structure on the door. Reducing the weight of the door can effectively reduce the deformation of the sheet metal structure.

[0008] Furthermore, the box body includes a back shell; a face shell, which is located in front of the back shell; an opening, which is arranged through the front end of the face shell, and the door is rotatably connected to the front end of the face shell and can selectively close the opening; a bottom plate, which is rotatably connected to the lower end of the front of the back shell; a top plate, which is rotatably connected to the upper end of the rear of the face shell; a side panel group, which has two side panels and is respectively arranged on the left and right sides of the back shell; the side panel group includes two side panels, one end of one of the side panels is rotatably connected to the front end of the back shell, and one end of the other side panel is rotatably connected to the rear end of the face shell; the other ends of two adjacent side panels are rotatably connected to each other; the rotation axes of the bottom plate and the top plate are arranged along the left and right directions; the rotation axes of each of the side panels are arranged along the longitudinal direction.

[0009] The depth of the back shell can accommodate the bottom plate; the depth of the front shell can accommodate the top plate; after the box is folded, the space inside the box is compressed and filled, reducing the overall volume, thereby making the box easy to carry.

[0010] Furthermore, two hanging ears are symmetrically arranged on the top plate; a handle is rotatably connected between the two hanging ears and located at the upper end of the top plate; two connection groups are arranged on the top plate for installing the hanging ears respectively; the connection group includes two parallel connection grooves; the hanging ear includes a semicircular plate and a straight plate arranged on one side of the semicircular plate; the two ends of the semicircular plate are respectively located in two adjacent connection grooves; the straight plate is located at the lower end of the top plate.

[0011] The handle is formed by bending a metal rod, and both ends of the handle are rotatably connected in the inner cavity of the circular plate; the straight plate is fixedly connected to the lower end of the top plate by screws or welding; the installation form of the hanging ear makes the action position of the handle and the hanging ear, and the connection position of the hanging ear and the top plate form a lever, which can reduce the tension at the connection position to a certain extent and improve the structural strength. At the same time, the hanging ear is easy to install and fix, and does not increase the difficulty of assembly.

[0012] Furthermore, a through hole penetrating the bottom plate is provided in the middle of the bottom plate; at least one lifting plate extending upward is provided in the through hole; a partition is provided at the upper end of the lifting plate; there is a gap between the partition and the bottom plate; and an exhaust port is provided through the upper end of the top plate.

[0013] Specifically, a lower bend extending downward is provided in the middle of the partition; the partition is a sheet metal part, and the lower bend is formed by three 90-degree bends; the lower bend is located in the through hole; the lower end of the lower bend is flush with the lower end of the bottom plate; the two ends of the lower bend respectively abut against the inner wall of the through hole.

[0014] Specifically, the four corners of the partition are respectively provided with bent corners extending downward; the bent corners abut against the upper end of the bottom plate.

[0015] The gap and the exhaust port form an air passage, which increases the air circulation in the box body; it helps to increase the combustion efficiency and effect; the lower bend is matched with the through hole, the curved angle, etc., to increase the gap between the partition and the bottom plate, which increases the air circulation while also increasing the structural strength of the bottom plate and the carrying capacity, so that the box body can be moved while there are contents in the box body.

[0016] Furthermore, the upper and lower ends of the side panels are respectively provided with longitudinal slots; the upper end of the top panel is provided with a plurality of upper plug-in plates respectively plugged into the corresponding longitudinal slots; the lower end of the bottom panel is provided with a plurality of lower plug-in plates respectively plugged into the corresponding longitudinal slots; the upper end of the back shell and the lower end of the face shell are respectively rotatably connected with locking plates; the two locking plates can be selectively abutted against the upper end of the bottom panel and the lower end of the top panel.

[0017] The top plate rotates upward and drives the upper plug plate to be inserted into the corresponding longitudinal slot; similarly, the bottom plate rotates downward and drives the lower plug plate to be inserted into the corresponding longitudinal slot; the two locking plates rotate to prevent the bottom plate from rotating upward and the top plate from rotating downward, so that the unfolding structure of the box body is stably supported.

[0018] Specifically, a lower hook groove is provided on one side of the bottom plate close to its rotation axis; an upper hook groove is provided on one side of the top plate close to its rotation axis; a hook is provided on the locking plate; and the two hooks can be selectively engaged with the upper hook groove and the lower hook groove respectively.

[0019] When the hook is engaged with the upper hook groove and the lower hook groove, the back shell and the front shell are locked together after being folded and stored, so as to prevent the box body from being opened again.

[0020] Specifically, one end of the locking plate is located inside the box body, and the other end is located outside the box body; an edge of the locking plate located inside the box body is provided with an arc surface; and the locking plate located outside the box body is provided with a wrench protruding outward.

[0021] Furthermore, a grid is detachably connected to the box body; two outer arches protruding outward are respectively arranged on both sides of the grid; a plurality of transverse slots evenly arranged along the longitudinal direction are arranged on the side panels; and the outer arches can be selectively snapped into the corresponding transverse slots.

[0022] Below the grid is a heat source, which may be an open flame or an electric heat source; above the grid is a baking object, which may be food or items that need to be dried; the height of the grid is adjusted according to specific circumstances, such as the height of the baking object or the heat source.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The box can be used as an oven after being unfolded. After being folded, the space inside the box is compressed and folded, which reduces the occupied volume and is easy to carry and move;

[0025] 2. The observation window on the door uses the elastic force of the right-angle spring to fix the glass, and at the same time provides a certain deformation space for the thermal expansion and contraction of the glass. The fixing structure of the glass is simple, which reduces the weight of the door and prevents the deformation of the sheet metal structure of the box or door;

[0026] 3. The bottom plate and the partition are arranged in layers with a gap between them, which increases the bottom air flow while also improving the structural strength and bearing capacity of the bottom plate;

[0027] 4. When the box is in the unfolded or folded state, the locking plate can limit the bottom plate and the top plate, thereby maintaining the state and increasing the stability. Only a single part is used to lock the two states, which reduces the complexity of the structure and is also convenient for manual operation;

[0028] 5. The grid can be snapped onto the side panels at different heights, increasing compatibility with different heat sources and heights and sizes of baked goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the parts explosion of the utility model;

[0031] Figure 3 It is an exploded schematic diagram of corresponding parts on the door of the utility model;

[0032] Figure 4 It is a structural schematic diagram of the surface shell and the top plate of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the back shell and bottom plate of the utility model;

[0034] Figure 6 It is a schematic diagram of the structure of the hanging ear and the handle of the utility model;

[0035] Figure 7 This is a schematic diagram of the installation structure of the right-angle spring piece and the baffle of the utility model;

[0036] Figure 8 It is a structural schematic diagram of the box body of the utility model in an unfolded state;

[0037] Fig. 9 It is a structural schematic diagram of the box body of the utility model in a folded state.

[0038] In the figure: 1, back shell; 21, bottom plate; 211, lower plug plate; 212, through hole; 213, lifting plate; 214, lower hook groove; 22, partition; 221, lower bend; 222, corner; 3, front shell; 31, opening; 41, top plate; 411, upper hook groove; 412, connecting groove; 413, upper plug plate; 414, exhaust port; 42, handle; 43, hanging ear; 431, semicircular plate; 432, straight plate; 51 , door; 511, observation window; 512, limit plate; 513, positioning hole; 52, lock tongue; 53, thermometer; 54, fixing frame; 541, side socket; 542, buckle plate; 55, glass; 56, baffle; 57, right-angle spring piece; 571, inner arch; 6, side panel; 61, horizontal slot; 62, vertical slot; 7, grid; 71, outer arch; 8, locking plate; 81, arc surface; 82, hook; 83, wrench. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0040] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] See also Figure 1-Figure 9 A foldable metal oven for easy storage includes a box body, the box body can be folded; a door 51, the door 51 is rotatably connected to the front end of the box body; an observation window 511, the observation window 511 is arranged on the door 51; a fixing frame 54, the fixing frame 54 is arranged at the front end of the door 51 and is opposite to the observation window 511; a side socket 541, the side socket 541 is arranged on the side of the fixing frame 54; a glass 55, the glass 55 is inserted through the side The socket 541 is inserted into the fixed frame 54, and the glass 55 completely covers the observation window 511; the baffle 56 is arranged in the side socket 541 and closes the side socket 541; the right-angle spring clip 57 is arranged in the fixed frame 54 at one end away from the side socket 541; two inner arches 571 are arranged on the right-angle spring clip 57; the two inner arches 571 respectively abut against the two adjacent sides of the glass 55.

[0044] The fixed frame 54 is provided with a plurality of evenly distributed buckle plates 542 at one end edge facing the door 51; the door 51 is provided with a plurality of insertion holes respectively facing the buckle plates 542; the door 51 is provided with a plurality of positioning holes 513, and the positioning holes 513 are located on the side of the baffle 56 away from the glass 55; the baffle 56 can be limited by inserting or screwing into the positioning hole 513.

[0045] A thermometer 53 is provided at the front end of the door 51; a lock tongue 52 having one end rotatably connected to the door 51 is provided in the door 51; two limit plates 512 are provided in the door 51; the lock tongue 52 is located between the two limit plates 512; when the lock tongue 52 is rotated to abut against one of the limit plates 512, the lock tongue 52 abuts against the inner wall of the face shell 3, and the door 51 is relatively fixed to the face shell 3; when the lock tongue 52 is rotated to abut against the other limit plate 512, the lock tongue 52 does not contact the face shell 3, and the door 51 can rotate relative to the face shell 3.

[0046] The box body includes a back shell 1; a front shell 3, wherein the front shell 3 is located in front of the back shell 1; an opening 31, wherein the opening 31 is arranged through the front end of the front shell 3, and the door 51 is rotatably connected to the front end of the face shell 3 and can selectively close the opening 31; a bottom plate 21, wherein the bottom plate 21 is rotatably connected to the lower end of the front of the back shell 1; a top plate 41, wherein the top plate 41 is rotatably connected to the upper end of the rear of the face shell 3; a side plate group, wherein the side plate group has two and is respectively arranged on the left and right sides of the back shell 1; the side plate group includes two side plates 6, wherein one end of one of the side plates 6 is rotatably connected to the front end of the back shell 1, and one end of the other side plate 6 is rotatably connected to the rear end of the face shell 3; the other ends of two adjacent side plates 6 are rotatably connected to each other; the rotation axes of the bottom plate 21 and the top plate 41 are arranged along the left and right directions; the rotation axes of each of the side plates 6 are arranged along the longitudinal direction.

[0047] Two hanging ears 43 are symmetrically arranged on the top plate 41; a handle 42 is rotatably connected between the two hanging ears 43 and located at the upper end of the top plate 41; two connection groups are arranged on the top plate 41 for installing the hanging ears 43 respectively; the connection group includes two parallel connection grooves 412; the hanging ear 43 includes a semicircular plate 431 and a straight plate 432 arranged on one side of the semicircular plate 431; the two ends of the semicircular plate 431 are respectively located in two adjacent connection grooves 412; the straight plate 432 is located at the lower end of the top plate 41.

[0048] A through hole 212 penetrating the bottom plate 21 is provided in the middle of the bottom plate 21; two lifting plates 213 extending upward are provided in the through hole 212; a partition 22 is provided at the upper ends of the two lifting plates 213; four corners of the partition 22 are respectively provided with bent corners 222 extending downward; the bent corners 222 abut against the upper end of the bottom plate 21; there is a gap between the partition 22 and the bottom plate 21; an exhaust port 414 is provided through the upper end of the top plate 41.

[0049] A lower bend 221 extending downward is provided in the middle of the partition 22; the partition 22 is a sheet metal part, and the lower bend 221 is formed by three 90-degree bends; the lower bend 221 is located in the through hole 212; the lower end of the lower bend 221 is flush with the lower end of the bottom plate 21; the two ends of the lower bend 221 are respectively against the inner wall of the through hole 212.

[0050] The box body is detachably connected with a grid frame 7; two outer arches 71 protruding outward are respectively arranged on both sides of the grid frame 7; the side plate 6 is provided with a plurality of transverse slots 61 evenly arranged in the longitudinal direction; the outer arches 71 can be selectively snapped into the corresponding transverse slots 61.

[0051] The upper and lower ends of the side panel 6 are respectively provided with longitudinal slots 62; the longitudinal slots 62 are formed by stamping of metal plates; the upper end of the top plate 41 is provided with four upper plug-in plates 413 respectively plugged with the corresponding longitudinal slots 62; the lower end of the bottom plate 21 is provided with four lower plug-in plates 211 respectively plugged with the corresponding longitudinal slots 62; the upper end of the back shell 1 and the lower end of the face shell 3 are respectively rotatably connected with locking plates 8; the two locking plates 8 can be selectively abutted against the upper end of the bottom plate 21 and the lower end of the top plate 41.

[0052] The bottom plate 21 is provided with a lower hook groove 214 on one side close to the rotation axis; the top plate 41 is provided with an upper hook groove 411 on one side close to the rotation axis; the locking plate 8 is provided with a hook 82; the two hooks 82 can be selectively engaged with the upper hook groove 411 and the lower hook groove 214 respectively.

[0053] One end of the locking plate 8 is located inside the box, and the other end is located outside the box; an arc surface 81 is provided at the edge of the locking plate 8 located inside the box; and a wrench 83 protruding outward is provided on the locking plate 8 located outside the box.

[0054] Unfolding process: Turn the two locking plates 8 outward to separate the hooks 82 from the lower hook groove 214 and the upper hook groove 411 respectively, pull the back shell 1 and the surface shell 3 in two opposite directions, and the side plates 6 are unfolded under the drive of the surface shell 3 and the back shell 1. Open the door 51, fold the top plate 41 upward, and insert the upper plug plate 413 into the corresponding longitudinal slot 62, turn the locking plate 8 on the back shell 1 inward, so that the locking plate 8 and the lower end of the top plate 41 are abutted, and the top plate 41 is restricted from rotating downward. Fold the bottom plate 21 downward, insert the lower plug plate 211 into the corresponding longitudinal slot 62, turn the locking plate 8 on the surface shell 3 inward, so that the locking plate 8 and the upper end of the bottom plate 21 are abutted, and the bottom plate 21 is restricted from rotating upward. Finally, take out the grid 7, and insert the grid 7 horizontally into the horizontal slot 61 of a suitable height, place the heat source at the lower end of the grid 7, and place the baking object at the upper end.

[0055] Folding process: Rotate the two locking plates 8 outwards so that they are no longer in contact with the adjacent top plate 41 and bottom plate 21, remove the mesh frame 7, rotate it ninety degrees and place it in the back shell 1. Fold the bottom plate 21 upwards so that the bottom plate 21 is stored in the back shell 1, and fold the top plate 41 downwards so that the top plate 41 is placed in the face shell 3. Push the back shell 1 and the face shell 3 toward each other to the limit position, and fold the side plates 6 inwards at the same time. Rotate the locking plate 8 on the back shell 1 so that the hook 82 is inserted into the upper hook groove 411, and rotate the locking plate 8 on the face shell 3 so that the hook 82 is inserted into the lower hook groove 214. Finally, close the door 51.

[0056] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A foldable metal oven that is easy to store, characterized by: The invention comprises a box body, wherein the box body can be folded; A door, the door being rotatably connected to the front end of the box; An observation window, the observation window being arranged on the door in a continuous manner; A fixing frame, the fixing frame is arranged at the front end of the door and directly faces the observation window; A side socket, the side socket being arranged on a side of the fixing frame; Glass, the glass is inserted into the fixing frame through the side insertion port; a baffle, the baffle being disposed in the side socket and closing the side socket; A right-angle spring piece is arranged at one end of the fixing frame away from the side socket; two inner arches are arranged on the right-angle spring piece; and the two inner arches are respectively abutted against two side edges adjacent to the glass.

2. The oven according to claim 1, characterized in that: The box body includes a back shell; A face shell, the face shell being located in front of the back shell; An opening, the opening being arranged through the front end of the face shell, the door being rotatably connected to the front end of the face shell and selectively closing the opening; A bottom plate, the bottom plate being rotatably connected to the front lower end of the back shell; A top plate, the top plate being rotatably connected to the upper rear end of the face shell; A side panel group, wherein the side panel group has two and is respectively arranged on the left and right sides of the back shell; The side panel group includes two side panels, one end of one of the side panels is rotatably connected to the front end of the back shell, and one end of the other side panel is rotatably connected to the rear end of the face shell; the other ends of two adjacent side panels are rotatably connected to each other; the rotation axes of the bottom panel and the top panel are arranged along the left and right directions; and the rotation axes of each side panel are arranged along the longitudinal direction.

3. The oven according to claim 2, characterized in that: Two hanging ears are symmetrically arranged on the top plate; a handle is rotatably connected between the two hanging ears and located at the upper end of the top plate; two connection groups for installing the hanging ears are arranged on the top plate; the connection group includes two parallel connection grooves; the hanging ear includes a semicircular plate and a straight plate arranged on one side of the semicircular plate; the two ends of the semicircular plate are respectively located in two adjacent connection grooves; the straight plate is located at the lower end of the top plate.

4. The oven according to claim 2 or 3, characterized in that: A through hole penetrating the bottom plate is provided in the middle of the bottom plate; at least one lifting plate extending upward is provided in the through hole; a partition is provided at the upper end of the lifting plate; there is a gap between the partition and the bottom plate; an exhaust port is provided through the upper end of the top plate.

5. The oven according to claim 4, characterized in that: A lower bend extending downward is provided in the middle of the partition; the lower bend is located in the through hole; the lower end of the lower bend is flush with the lower end of the bottom plate; and the two ends of the lower bend are respectively against the inner wall of the through hole.

6. The oven according to claim 4, characterized in that: The four corners of the partition are respectively provided with bent corners extending toward the lower end; the bent corners abut against the upper end of the bottom plate.

7. The oven according to claim 2 or 3, characterized in that: The upper and lower ends of the side panels are respectively provided with longitudinal slots; the upper end of the top panel is provided with a plurality of upper plug-in plates respectively plugged into the corresponding longitudinal slots; the lower end of the bottom panel is provided with a plurality of lower plug-in plates respectively plugged into the corresponding longitudinal slots; the upper end of the back shell and the lower end of the face shell are respectively rotatably connected with locking plates; the two locking plates can be selectively abutted against the upper end of the bottom panel and the lower end of the top panel.

8. The oven according to claim 7, characterized in that: A lower hook groove is arranged on one side of the bottom plate close to its rotation axis; an upper hook groove is arranged on one side of the top plate close to its rotation axis; a hook is arranged on the locking plate; and the two hooks can be selectively engaged with the upper hook groove and the lower hook groove respectively.

9. The oven according to claim 7, characterized in that: One end of the locking plate is located in the box body, and the other end is located outside the box body; an arc surface is provided at the edge of the locking plate located in the box body; and a wrench protruding outward is provided on the locking plate located outside the box body.

10. The oven according to claim 2 or 3, characterized in that: A grid is detachably connected in the box; two outer arches protruding outward are respectively arranged on both sides of the grid; a plurality of transverse slots evenly arranged in the longitudinal direction are arranged on the side panels; the outer arches can be selectively snapped into the corresponding transverse slots.