CN215127496U

CN215127496U - Full-automatic oven with top door

Info

Publication number: CN215127496U
Application number: CN202120369124.2U
Authority: CN
Inventors: 张文彬
Original assignee: Zhongshan Couss Electrical Appliance Co ltd
Current assignee: Zhongshan Couss Electrical Appliance Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-12-14
Anticipated expiration: 2031-02-09

Abstract

The utility model belongs to the technical field of ovens, in particular to a full-automatic oven with a top door, wherein the oven door is arranged at the top of the oven body, so that the food in an ovenware can be observed more comprehensively after the oven door is opened; when food needs to be baked, the baking tray is placed on the top of the oven, and the bracket lifting mechanism drives the baking tray to automatically move to a baking position, so that the baking oven is convenient to use and simple to operate.

Description

Full-automatic oven with top door

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the oven, especially, relate to a full-automatic oven that top was opened door.

[ background of the invention ]

The existing oven needs to put food on the baking tray when the food is baked, after the baking tray bracket is pulled out by opening the door from the side, the baking tray is arranged on the baking tray bracket and pushed into the heating cavity to be baked, after the food is baked, the anti-scald gloves need to be taken to stretch the hands from the side of the oven to the heating oven to be taken, and the hands are easily scalded in the process.

[ Utility model ] content

The utility model provides a full-automatic oven that top was opened door, aim at solve traditional oven and toast the completion back at food, need stretch out the hand from the oven side and enter into the heating intracavity and take out the overware and cause the problem of scalding the hand easily.

The utility model discloses realized by following technical scheme:

the utility model provides a full-automatic oven that top was opened door, includes the box, the box includes first curb plate, second curb plate, preceding curb plate and posterior lateral plate, the oven door is installed at the top of box, when the oven door is closed with first curb plate, second curb plate, preceding curb plate and posterior lateral plate surround into the heating chamber, the heating intracavity is equipped with the overware bracket and is used for driving the bracket elevating system that the overware bracket reciprocated.

As above a full-automatic oven that top was opened door, first curb plate is kept away from heating chamber one side is equipped with first installation cavity, bracket elevating system is including locating lift drive in the first installation cavity, lift drive including locating lift driving motor in the first installation cavity, locate in the first installation cavity with lift driving motor output shaft transmission connects's screw rod and locate on the screw rod through the screw thread with screw rod complex lifting nut.

According to the full-automatic oven with the door opened from the top, the baking tray bracket comprises the bracket connecting part in transmission connection with the lifting driving device and the baking tray placing part connected with the bracket connecting part, the first side plate is provided with the first yielding long hole, so that the bracket connecting part can stretch into the first installation cavity, is connected with the lifting nut and moves up and down along with the lifting nut.

According to the full-automatic oven with the door opened from the top, the oven door is provided with the pivot shaft at one edge, the pivot shaft is in pivot connection with the oven body, the door opening driving device is arranged in the first mounting cavity and is in transmission connection with the pivot shaft so as to drive the pivot shaft to rotate, the oven door is driven to open and close through the rotation of the pivot shaft, the upper surface of the oven door is provided with the handle, and the handle is located at the edge position, far away from the pivot shaft, of the oven door and is parallel to and opposite to the pivot shaft.

The full-automatic oven with the top door comprises the door opening driving device and the mounting shell arranged on the first side plate, the door opening driving motor is arranged outside the mounting shell, an output shaft of the door opening driving motor extends into the mounting shell, one end of the pivot shaft penetrates through the first side plate to extend into the mounting shell and is in transmission connection with an output shaft of the door opening driving motor through the door opening transmission mechanism, the door opening transmission mechanism comprises a first-stage door opening gear arranged at the output end of the door opening driving motor output shaft extending into the mounting shell, a second-stage door opening gear arranged at one end of the pivot shaft penetrating through the first side plate and extending into the mounting shell, and a third-stage door opening gear arranged on the mounting shell, and the third-level door opening gear is in transmission connection with the first-level door opening gear and the second-level door opening gear respectively.

According to the full-automatic oven with the door opened at the top, the first installation cavity is far away from one side of the heating cavity, a heat insulation installation cavity is arranged on one side of the heating cavity, a control panel is arranged on the heat insulation installation cavity, the control panel is electrically connected with the bracket lifting mechanism, and the control panel is electrically connected with the door opening driving device.

According to the full-automatic oven with the top door, the oven door, the front side plate and the rear side plate are made of heat-resistant glass, and the front side plate and the rear side plate are detachably mounted.

According to the full-automatic oven with the top door, the second side plate is far away from one side of the heating cavity, the second installation cavity is arranged, and the bracket lifting mechanism further comprises an auxiliary lifting device arranged in the second installation cavity.

The full-automatic oven with the top door is characterized in that the auxiliary lifting device comprises a lifting auxiliary guide pillar, a buffering connecting piece and a buffering spring, wherein the lifting auxiliary guide pillar is vertically arranged in the second mounting cavity, the buffering connecting piece is sleeved on the lifting auxiliary guide pillar, the buffering spring is positioned below the buffering connecting piece, one end of the buffering connecting piece is slidably sleeved on the lifting auxiliary guide pillar, the other end of the buffering connecting piece extends out of the second mounting cavity and is connected with the baking tray bracket, and a second abdicating long hole for the buffering connecting piece to extend out is formed in the second side plate, so that the buffering connecting piece can slide on the lifting auxiliary guide pillar along with the lifting of the baking tray bracket.

According to the full-automatic oven with the top door, the auxiliary lifting device comprises the auxiliary driving motor arranged in the second mounting cavity, the lifting transmission assembly in transmission connection with the output shaft of the auxiliary driving motor, and the second lifting connecting piece which is respectively connected with the lifting transmission assembly and the baking tray bracket.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model provides a full-automatic oven with a top door, wherein the oven door is arranged at the top of the oven body, and meanwhile, the utility model is also provided with a bracket lifting mechanism which can drive the baking tray bracket to move up and down, so that the baking tray bracket automatically drives the baking tray to lift from the heating cavity to the oven door at the top through the bracket lifting mechanism, thereby being very suitable for taking and placing baking tray food, avoiding extending hands from the side surface of the oven to enter the heating cavity to take the baking tray and avoiding scalding hands; when food needs to be baked, the food is placed on the baking tray at the top of the oven, and the baking tray is driven to automatically move to a baking position through the bracket lifting mechanism, so that the baking oven is convenient to use and simple to operate;

2. the utility model discloses an oven door, preceding curb plate and posterior lateral plate all adopt heat-resisting glass, and the user can follow the food condition of toasting in the oven is easily observed in different position, simultaneously, preceding curb plate and posterior lateral plate demountable installation, the oven cavity's of being convenient for cleanness and maintenance.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the oven of the present invention after the door is closed;

FIG. 3 is a schematic view of the oven door opened with the tray support in the baking position according to one embodiment of the present invention;

FIG. 4 is a schematic structural view of the oven with the door open and the tray support moved to the door position of the oven according to one embodiment;

FIG. 5 is a cross-sectional view A-A of FIG. 2;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a partial enlarged view of a in FIG. 5;

FIG. 8 is a schematic structural view of the second embodiment with the toaster door opened and the toasting tray in the toasting position;

FIG. 9 is a schematic structural view of the second embodiment after the door of the second compartment is opened and the tray support is moved to the position of the door opening of the oven;

FIG. 10 is a cross-sectional view of C-C of FIG. 9;

FIG. 11 is a cross-sectional view D-D of FIG. 10;

FIG. 12 is a schematic view of the toaster door of the embodiment shown in the toasting position after being opened;

FIG. 13 is a cross-sectional view of E-E in FIG. 12;

fig. 14 is a cross-sectional view F-F of fig. 13.

[ detailed description ] embodiments

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

When embodiments of the present invention refer to the ordinal numbers "first", "second", etc., it should be understood that the terms are used for distinguishing only when they do express the ordinal order in context.

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

In a first specific embodiment, as shown in fig. 1 to 7, the full-automatic oven with the top door comprises an oven body 1, wherein the oven body 1 comprises a first side plate 11, a second side plate 12, a front side plate 13 and a rear side plate 14, an oven door 2 is installed at the top of the oven body 1, when the oven door 2 is closed, a heating cavity 3 is defined by the first side plate 11, the second side plate 12, the front side plate 13 and the rear side plate 14, and a baking tray bracket 5, a bracket lifting mechanism 7 for driving the baking tray bracket 5 to move up and down, and a heating device 17 for heating the heating cavity 3 are arranged in the heating cavity 3. The oven door 2 is arranged at the top of the oven body 1, and meanwhile, the utility model is also provided with a bracket lifting mechanism 7 which can drive the baking tray bracket 5 to move up and down, after the food baking is finished, the baking tray bracket 6 automatically drives the baking tray 4 to lift from the heating cavity 3 to the oven door at the top through the bracket lifting mechanism 7, thereby being very suitable for taking and placing the baking tray food, avoiding extending hands from the side surface of the oven to enter the heating cavity to take the baking tray 4 and avoiding scalding hands; when food needs to be baked, the baking tray 4 at the top of the oven is placed with the food, and the bracket lifting mechanism 7 drives the baking tray 4 to automatically move to the baking position, so that the baking oven is convenient to use and simple to operate.

Specifically, a first installation cavity 6 is arranged on one side of the first side plate 11 away from the heating cavity 3, the carriage lifting mechanism 7 includes a lifting drive device 71 provided in the first mounting chamber 6, the lifting driving device 71 comprises a lifting driving motor 711 arranged in the first installation cavity 6, a screw 712 arranged in the first installation cavity 6 and in transmission connection with an output shaft of the lifting driving motor 711, and a lifting nut 713 arranged on the screw 712 and matched with the screw 712 through threads, the baking tray bracket 5 comprises a bracket connecting part 51 in transmission connection with the lifting driving device 71 and a baking tray placing part 52 connected with the bracket connecting part 51, be equipped with first slot hole 9 of stepping down on the first curb plate 11, make bracket connecting portion 51 can stretch into to in the first installation cavity 6 with lifting nut 713 is connected and along with lifting nut 713 reciprocates. The utility model discloses lift driving motor 711 can adopt screw drive, rack and pinion transmission, belt drive, chain drive etc. preferably, the utility model discloses lift driving motor 711 adopts screw drive. Through lifting drive motor 711 drive bracket connecting portion 51 lift, and then realize baking tray bracket 5's automatic rising, and when needs toast food, place food behind baking tray 4 at the oven top, drive baking tray 4 through bracket elevating system 7 and move automatically to toasting the position, it is convenient to use, easy operation can make baking tray bracket 5 lift more stable through screw drive moreover, and reliable operation avoids the shake to make the food on baking tray 4 unrestrained. More specifically, the end of the screw 712 extending out of the bottom of the oven is provided with a first-stage lifting gear, the output end of the lifting driving motor 711 is provided with a second-stage lifting gear, and the first-stage lifting gear is in transmission connection with the second-stage lifting gear, so that the working stability is higher, the structure is compact, and the working is more reliable.

In addition, a pivoting shaft 21 is arranged at one edge of the oven door 2, the pivoting shaft 21 is pivotally connected with the oven body 1, a door opening driving device 8 is arranged in the first installation cavity 6, the door opening driving device 8 is in transmission connection with the pivoting shaft 21 to drive the pivoting shaft 21 to rotate, so that the oven door 2 is driven to open and close through the rotation of the pivoting shaft 21, a handle 22 is arranged on the upper surface of the oven door 5, and the handle 22 is located at the edge position of the oven door 2, which is far away from the pivoting shaft 21, and is parallel to and arranged opposite to the pivoting shaft 21. Drive the automatic switching of oven door 2 through drive arrangement 8 that opens the door, it is more convenient to use, avoids scalding moreover, is equipped with handle 22 on oven door 2 for the user can be through the manual switching oven door 2 of handle 22, and oven door 2 is used according to user's actual conditions in a flexible way by manual or automatic control.

Specifically, the door opening drive device 8 includes a door opening drive motor 81 and a mounting case 82 provided on the first side plate 11, the door opening driving motor 81 is installed outside the installation housing 82 and the output shaft of the door opening driving motor 81 extends into the installation housing 82, one end of the pivot shaft 21 penetrates through the first side plate 11 and extends into the mounting shell 82, and is in transmission connection with an output shaft of the door opening driving motor 81 through a door opening transmission mechanism 83, the door opening transmission mechanism 83 comprises a first-stage door opening gear 831 arranged at the output end of the door opening driving motor 81 extending into the installation shell 82, a second-stage door opening gear 832 arranged at the end of the pivot shaft 21 penetrating through the first side plate 11 and extending into the installation shell 82, and a third-stage door opening gear 833 arranged on the installation shell 82, the third-stage door opening gear 833 is in transmission connection with the first-stage door opening gear 831 and the second-stage door opening gear 832 respectively. The gear transmission mode is adopted, so that the working stability is higher, the structure is compact, and the working is reliable.

More specifically, first installation cavity 6 is kept away from heating chamber 3 one side is equipped with thermal-insulated installation cavity 10, be equipped with control panel 15 on the thermal-insulated installation cavity 10, control panel 15 with bracket elevating system 7 electricity is connected, control panel 15 with drive arrangement 8 electricity is connected opens the door. Through control panel 15 drive bracket elevating system 7, and then drive overware bracket 5 realizes automatic rising, drives drive arrangement 8 that opens the door through control panel 15, and then drives the automatic switching of oven door, and it is more convenient to use, and control panel 15 not only can control bracket elevating system 7 automatic rising and oven door 2's automatic switching, can also control heating chamber 3 heating temperature simultaneously, set up heating time etc. but control panel 15 high temperature resistance can be relatively poor, the utility model discloses keep away from at first installation cavity 6 heating chamber 3 one side is equipped with thermal-insulated installation cavity 10, sets up control panel 15 in thermal-insulated installation cavity 10 for control panel 15 seals with heating chamber part and separates, avoids damaging control panel 15 because of the temperature is too big, makes to control oven heating temperature more accurate through control panel 15.

Still further, the oven door 2, the front side plate 13 and the rear side plate 14 are made of heat-resistant glass, so that a user can easily observe the food baking condition in the oven from different directions. Specifically, the front side plate 13 and the rear side plate 14 are detachably mounted, so that the oven cavity is convenient to clean and maintain.

Specifically, the heating device 17 includes an electric heating tube 171 disposed in the second mounting cavity 16 and a fan 172 disposed in the second mounting cavity 16, and the second side plate 12 is provided with an air guiding hole 18 corresponding to an air outlet position of the fan 172. The fan 172 comprises a motor and fan blades driven by the motor, the electric heating tube 171 is arranged around the fan blades, the motor drives the fan blades to send heat generated by the electric heating tube 171 to the heating cavity 3, meanwhile, the second side plate 12 is provided with air guide holes 18 corresponding to the air outlet position of the fan 172, hot air circulation can be controlled, and heat can be quickly and uniformly distributed in the heating cavity 3.

In a second embodiment, as shown in fig. 1 to 11, a second installation cavity 16 is provided on a side of the second side plate 12 away from the heating cavity 3, and the carriage lifting mechanism 7 further includes an auxiliary lifting device 72 provided in the second installation cavity 16. The lifting driving device 71 drives the baking tray bracket 5 to lift, and meanwhile, the auxiliary lifting device 72 is arranged, so that the baking tray bracket 5 can lift more stably and reliably, and the food on the baking tray 4 is prevented from spilling due to shaking.

Specifically, the auxiliary lifting device 72 includes a lifting auxiliary guide post 721a vertically disposed in the second mounting cavity 16, a first lifting connecting member 722a, and an elastic element 723a sleeved on the lifting auxiliary guide post 721a and located below the first lifting connecting member 722a, one end of the first lifting connecting member 722a is slidably sleeved on the lifting auxiliary guide post 721a, the other end of the first lifting connecting member extends out of the second mounting cavity 16 to be connected with the baking tray bracket 5, and the second side plate 12 is provided with a second abdicating long hole 19 for the first lifting connecting member 722a to extend out, so that the first lifting connecting member 722a slides on the lifting auxiliary guide post 721a along with the lifting of the baking tray bracket 5. The lifting driving device 71 drives the baking tray bracket 5 to lift by one side, unbalanced driving can occur, especially, acting force required when food is driven to lift is large, and clamping is easily caused due to uneven stress, the auxiliary lifting device 72 is arranged in the second mounting cavity 16, the first lifting connecting piece 722a in the auxiliary lifting device 72 synchronously lifts on the lifting auxiliary guide post 721a along with the lifting of the baking tray bracket 5, meanwhile, the elastic element 723a is arranged, the elastic element 723a is compressed when the baking tray bracket 5 descends, the elastic element 723a resets when the baking tray bracket 5 ascends and generates upward elastic force to the baking tray bracket 5, so that lifting is more stable, the lifting driving device 71 and the auxiliary lifting device 72 jointly drive the baking tray bracket 5 to move, and the lifting mechanism 7 is reasonable and reliable in structure.

In a third embodiment, as shown in fig. 1 to 14, the auxiliary lifting device 72 includes an auxiliary driving motor 721b disposed in the second mounting cavity 16, a lifting transmission assembly 722b in transmission connection with an output shaft of the auxiliary driving motor 721b, and a second lifting connecting member 723b respectively connected to the lifting transmission assembly 722b and the baking tray bracket 5, the lifting transmission assembly 722b may adopt belt transmission, chain transmission, etc., preferably, the lifting transmission assembly 722b of the present embodiment adopts belt transmission, the lifting transmission assembly 722b includes a first belt transmission assembly 722b1, a second belt transmission assembly 722b2, and a belt assembly connecting rod 722b3 connecting the first belt transmission assembly 722b1 and the second belt transmission assembly 722b2, the output shaft of the auxiliary driving motor 721b is in transmission connection with the belt assembly connecting rod 722b3, the second lifting connecting member 723b comprises a first connecting portion 723b1 connected with the first belt transmission component 722b1, and a second connecting portion 723b2 connected with the second belt transmission component 722b2, wherein the first connecting portion 723b1 and the second connecting portion 723b2 are both connected with the baking tray bracket 5, and the second side plate 12 is provided with a third abdicating long hole 23 and a fourth abdicating long hole 24 respectively for the first connecting portion 723b1 and the second connecting portion 723b2 to extend out, so that the baking tray bracket 5 is lifted along with the movement of the lifting transmission component 722 b. The auxiliary driving motor 721b is driven synchronously with the lifting driving motor 711, so that the lifting transmission assembly 722b and the lifting nut 713 move synchronously, and the moving distance of the lifting transmission assembly 722b is the same as the moving distance of the lifting nut 713 in a unit time. The baking tray bracket 5 is driven to ascend and descend synchronously by the ascending and descending driving device 71 and the auxiliary ascending and descending device 72 which are respectively arranged on the two sides of the baking tray bracket, so that the efficiency is high, the ascending and descending are stable, and the structural reliability is high.

The utility model discloses a full-automatic oven that top was opened door, the oven door sets up in the top of box, simultaneously the utility model discloses still be equipped with the bracket elevating system that can drive the overware bracket and reciprocate, after food toasts and accomplishes, make the overware bracket rise to the oven gate at top from the heating chamber through bracket elevating system automatic drive overware, very be suitable for getting of overware food to put, need not to stretch out the hand from the oven side and get into the overware in the heating chamber, avoid scalding the hand; when food needs to be baked, the baking tray is placed on the top of the oven, and the bracket lifting mechanism drives the baking tray to automatically move to a baking position, so that the baking oven is convenient to use and simple to operate.

The above description is provided for one embodiment of the present invention, and the embodiments of the present invention are not limited to these descriptions, and the present invention is not limited to the above nomenclature and the English nomenclature since the trade nomenclature is different. All with the utility model discloses a method, structure etc. are similar, the same, or to the utility model discloses make a plurality of technological deductions or replacement under the design prerequisite, all should regard as the utility model discloses a protection scope.

Claims

1. The utility model provides a full-automatic oven that top was opened door, includes box (1), box (1) includes first curb plate (11), second curb plate (12), preceding curb plate (13) and posterior lateral plate (14), its characterized in that, oven door (2) are installed at the top of box (1), when oven door (2) are closed with first curb plate (11), second curb plate (12), preceding curb plate (13) and posterior lateral plate (14) enclose into heating chamber (3), be equipped with in heating chamber (3) overware bracket (5) and be used for driving bracket elevating system (7) that overware bracket (5) reciprocated.

2. The oven with the top door as claimed in claim 1, wherein a first installation cavity (6) is formed in a side, away from the heating cavity (3), of the first side plate (11), the carriage lifting mechanism (7) comprises a lifting driving device (71) arranged in the first installation cavity (6), the lifting driving device (71) comprises a lifting driving motor (711) arranged in the first installation cavity (6), a screw (712) arranged in the first installation cavity (6) and in transmission connection with an output shaft of the lifting driving motor (711), and a lifting nut (713) arranged on the screw (712) and matched with the screw (712) through threads.

3. The full-automatic oven with the top door as claimed in claim 2, wherein the baking tray bracket (5) comprises a bracket connecting part (51) in transmission connection with the lifting driving device (71) and a baking tray placing part (52) connected with the bracket connecting part (51), and the first side plate (11) is provided with a first yielding slot hole (9) so that the bracket connecting part (51) can extend into the first mounting cavity (6) to be connected with the lifting nut (713) and move up and down along with the lifting nut (713).

4. The full-automatic oven with the door opened from the top as claimed in claim 2, wherein the oven door (2) is provided with a pivot shaft (21) at one edge thereof, the pivot shaft (21) is pivotally connected to the oven body (1), the door opening driving device (8) is disposed in the first mounting cavity (6), the door opening driving device (8) is in transmission connection with the pivot shaft (21) to drive the pivot shaft (21) to rotate, so as to drive the oven door (2) to open and close through the rotation of the pivot shaft (21), the upper surface of the oven door (2) is provided with a handle (22), and the handle (22) is located at an edge position of the oven door (2) far away from the pivot shaft (21) and is parallel to and opposite to the pivot shaft (21).

5. The oven of claim 4, wherein the door opening driving device (8) comprises a door opening driving motor (81) and an installation housing (82) arranged on the first side plate (11), the door opening driving motor (81) is installed outside the installation housing (82) and an output shaft of the door opening driving motor (81) extends into the installation housing (82), one end of the pivot shaft (21) penetrates through the first side plate (11) and extends into the installation housing (82) and is in transmission connection with an output shaft of the door opening driving motor (81) through a door opening transmission mechanism (83), the door opening transmission mechanism (83) comprises a first-stage door opening gear (831) arranged on an output end of the door opening driving motor (81) extending into the installation housing (82), and a second-stage door opening gear (831) arranged on an end of the pivot shaft (21) penetrating through the first side plate (11) and extending into the installation housing (82) Second grade door opening gear (832) and locate tertiary door opening gear (833) on installation casing (82), tertiary door opening gear (833) respectively with first grade door opening gear (831) with secondary door opening gear (832) transmission connection.

6. A fully automatic oven with a top door according to claim 4, characterized in that a heat insulation installation chamber (10) is arranged on the side of the first installation chamber (6) far away from the heating chamber (3), a control panel (15) is arranged on the heat insulation installation chamber (10), the control panel (15) is electrically connected with the bracket lifting mechanism (7), and the control panel (15) is electrically connected with the door opening driving device (8).

7. A fully automatic oven with a top door according to claim 1, characterized in that the oven door (2), the front side plate (13) and the rear side plate (14) are made of heat-resistant glass, and the front side plate (13) and the rear side plate (14) are detachably mounted.

8. A fully automatic oven with a top door opening according to claim 1, wherein a second installation cavity (16) is provided on the side of the second side plate (12) away from the heating cavity (3), and the carriage lifting mechanism (7) further comprises an auxiliary lifting device (72) provided in the second installation cavity (16).

9. The fully automatic oven with the top door as claimed in claim 8, the auxiliary lifting device (72) comprises a lifting auxiliary guide post (721a) vertically arranged in the second mounting cavity (16), a lifting connecting piece (722a) and an elastic element (723a) sleeved on the lifting auxiliary guide post (721a) and positioned below the lifting connecting piece (722a), one end of the lifting connecting piece (722a) is sleeved on the lifting auxiliary guide post (721a) in a sliding way, the other end of the lifting connecting piece extends out of the second mounting cavity (16) and is connected with the baking tray bracket (5), a second abdicating long hole (19) for the lifting connecting piece (722a) to extend out is arranged on the second side plate (12), so that the lifting connecting piece (722a) slides on the lifting auxiliary guide post (721a) along with the lifting of the baking tray bracket (5).

10. The oven as claimed in claim 8, wherein the auxiliary lifting device (72) comprises an auxiliary driving motor (721b) disposed in the second mounting chamber (16), a lifting transmission assembly (722b) in transmission connection with an output shaft of the auxiliary driving motor (721b), and a second lifting connecting member (723b) respectively connected to the lifting transmission assembly (722b) and the baking tray bracket (5).