Oven with fool-proof and oil-proof cover structure

Abstract

An oven with a fool-proof and oil-proof cover structure comprises an oven body, an oil-proof cover and a fool-proof mechanism arranged below the oil-proof cover. The oven body comprises an oil storage disc, a mounting frame and a barbecue rod. The oil storage disc is provided with a sliding groove, and a sliding groove flange is arranged on the periphery of the sliding groove. The mounting frame is provided with a first mounting hole and a second mounting hole. A connecting piece is fixedly arranged at one end of the barbecue rod, and the oil-proof cover is arranged on the outer side of the flange of the sliding groove in a covering mode. The fool-proof mechanism comprises a plug pin assembly fixedly connected with the oil shield and a torsion spring shielding assembly. The plug pin assembly comprises a mounting plate and a plug pin. And the bolt penetrates through the second mounting hole. According to the oven with the fool-proof and oil-proof cover structure, the fool-proof structure is arranged, so that the connecting piece can penetrate through the first mounting hole only when the oil-proof cover is mounted, the barbecue rod is connected with the motor, and the motor is prevented from being polluted by oil due to neglected mounting of the oil-proof cover.

Description

Technical Field

[0001] This utility model relates to the field of ovens, and in particular to an oven with a foolproof and oil-proof cover structure. Background Technology

[0002] In recent years, with technological advancements, new technologies such as vertical rotary ovens, intelligent control systems, and energy-saving heating devices have been successively applied to the design and renovation of ovens, significantly improving heating efficiency and energy utilization efficiency.

[0003] A vertical barbecue grill with authorization announcement number CN201451157U on the Chinese Patent Website includes a box body and a base. The front of the box body is open, and a gas inlet main pipe is provided on the back of the box body. Several gas combustion plates are provided inside the box body. The gas combustion plates are disc-shaped with their openings facing forward. The openings of the gas combustion plates are sealed and covered with ceramic plates facing the openings of the box body. The ceramic plates and the inner walls of the gas combustion plates form a combustion chamber. The gas inlet main pipe is connected to several gas inlet branch pipes corresponding to each combustion chamber. The end of each gas inlet branch pipe is connected to a nozzle that introduces gas into the combustion chamber. It also includes an ignition needle installed on the box body, with the ignition head of the ignition needle located inside the combustion chamber. An oil collection tray is provided on the base, and a rotating shaft is located in the middle of the oil collection tray at the front of the box body. A barbecue rod is erected above the rotating shaft.

[0004] However, if the movement of the grill rod is to replace the movement of the heat source, a slotted opening for the movement of the grill rod must be provided on the oil collection tray. But this creates another problem: if an oil cover is not installed to prevent oil leakage from the slotted opening, or if the oil cover is forgotten to be assembled when installing the grill rod, oil will leak from the slotted opening into the interior of the equipment, contaminating components such as the motor, making them difficult to clean and reducing their lifespan. Utility Model Content

[0005] In view of this, the present invention provides an oven with a foolproof and oil-proof cover structure to solve the above problems.

[0006] The oven with a foolproof and oil-proof cover structure includes an oven body, an oil-proof cover mounted on the oven body, and a foolproof mechanism located below the oil-proof cover. The oven body includes an oil reservoir, a mounting frame located below the oil reservoir, and a roasting rod assembly that is plugged into a motor assembly. The oil reservoir has a groove in its center, and a groove flange on its outer periphery. The groove flange protrudes from the side facing away from the housing. The mounting frame has a first mounting hole for inserting the roasting rod assembly and a second mounting hole for mounting the foolproof mechanism. The roasting rod assembly includes a roasting rod and a connector fixedly mounted on the roasting rod. The oil-proof cover covers the outside of the groove flange. The foolproof mechanism includes a pin assembly fixedly connected to the oil-proof cover and a torsion spring shielding assembly located on the mounting frame facing the pin assembly. The pin assembly includes a mounting plate fixedly connected to the oil shield and a pin fixedly disposed on the mounting plate facing the torsion spring shield assembly. The pin corresponds to the second mounting hole and is inserted into the second mounting hole when the oil shield is placed on the sliding flange. The pin includes a guide surface at its end, which is inclined from the end of the pin to an increasing angle. The tip of the pin corresponds to the gap between the second mounting hole and the torsion spring shield assembly, and the shield covers the first mounting hole when the pin is not inserted into the second mounting hole. When the oil shield is installed on the sliding flange, the pin is inserted into the second mounting hole, and the shield is pushed by the pin. At this time, the shield covering the first mounting hole moves to expose the first mounting hole, allowing the connector to be inserted into the first mounting hole. The torsion spring assembly provides a restoring force to the shield. When the pin is pulled out of the second mounting hole, the shield covers the first and second mounting holes again.

[0007] Furthermore, the oven body includes a shell, two oil-draining plates disposed on the oil storage tray, and a motor assembly disposed in the mounting frame. The oil storage tray is fixedly disposed on the shell, and an oil-blocking flange is provided around the edge of the oil storage tray. A second sliding groove is provided at the joint of the two oil-draining plates, and the second sliding groove is provided corresponding to the sliding groove. A supporting flange is provided on the side of the two oil-draining plates facing the oil storage tray, and the supporting flange is in contact with the edge portion of the oil storage tray.

[0008] Furthermore, the mounting frame is fixedly disposed within the housing and supports the motor assembly. The motor assembly includes a motor fixedly disposed on the mounting frame and a cross-shaped output head fixedly connected to the barbecue rod assembly. The connector passes sequentially through the second slide groove, the oil-proof cover, the slide groove, the foolproof mechanism, and the first mounting hole, and is finally inserted into the motor. The connector has a insertion slot on the cross-shaped output head.

[0009] Furthermore, the foolproof mechanism includes an auxiliary plate disposed between the oil storage pan and the mounting frame. The auxiliary plate is fixedly disposed on the mounting frame and has a barbecue rod assembly guide cylinder and a pin guide cylinder disposed thereon. The barbecue rod guide cylinder is disposed corresponding to the first mounting hole, and the pin guide cylinder is disposed corresponding to the second mounting hole.

[0010] Furthermore, the pin also includes a snap-fit ​​groove disposed above the guide surface, the snap-fit ​​groove being disposed on the pin and engaging with the torsion spring blocking assembly.

[0011] Furthermore, the torsion spring assembly includes a torsion spring disposed on the baffle plate, a connecting rod disposed at one end of the torsion spring, a fixing rod disposed at the other end of the torsion spring, and a rotating screw disposed in the middle of the torsion spring. The connecting rod is fixedly disposed only on the baffle plate, the fixing rod is fixedly disposed only on the mounting frame, and the rotating screw fixes the torsion spring to the baffle plate and the mounting frame. The free end of the torsion spring, the end where the connecting rod is located, is rotatably disposed on the mounting frame.

[0012] Furthermore, the torsion spring assembly also includes a limiting rod disposed next to the pin and a sliding groove disposed on the baffle plate. The limiting rod is fixedly disposed on the mounting frame and located in the sliding groove. When the baffle plate moves, the limiting rod moves relative to the baffle plate.

[0013] Furthermore, the torsion spring shielding assembly includes a semi-shielded hole disposed on the shielding plate. When the oil-proof cover is installed on the sliding flange, the pin is inserted into the second mounting hole and pushes the shielding plate, and the semi-shielded hole is exposed to the first mounting hole as the shielding plate moves.

[0014] Furthermore, the torsion spring blocking assembly also includes a roller corresponding to the pin, the roller being disposed on the edge of the blocking plate, and the gap between the roller and the second mounting hole being disposed corresponding to the end of the pin.

[0015] Compared with existing technologies, the oven with a foolproof oil-proof cover structure provided by this utility model has a foolproof mechanism that prevents the installation of the roasting rod assembly without the oil-proof cover, thus avoiding the omission of the oil-proof cover and preventing oil from leaking onto the motor assembly and contaminating it. The foolproof mechanism includes a baffle plate and a torsion spring assembly, such that when the pin is not inserted into the second mounting hole, the baffle plate covers the first and second mounting holes. When the oil-proof cover is placed on the sliding flange, the pin, fixed on the oil-proof cover, passes through the sliding groove and the pin guide cylinder and finally inserts into the second mounting hole. Simultaneously, the pin pushes the baffle plate, exposing the first mounting hole, allowing the connector to be inserted. This foolproof mechanism ensures that the roasting rod assembly can only be assembled after the oil-proof cover is assembled, thus preventing the omission of the oil-proof cover and ensuring the normal service life of the oven. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an oven with a foolproof and oil-proof cover provided by this utility model.

[0017] Figure 2 for Figure 1 A cross-sectional view of the oven with the aforementioned foolproof and oil-proof cover structure, including the oil-proof cover, foolproof structure, and roasting rod assembly.

[0018] Figure 3 for Figure 1 An exploded view of the structure of the oven with the aforementioned anti-foolproof and oil-proof cover structure.

[0019] Figure 4 for Figure 1 An oven with the aforementioned foolproof and oil-proof cover structure has the oil-proof cover, and an exploded view of the structure of the foolproof mechanism.

[0020] Figure 5 for Figure 1 A schematic diagram of the pin assembly of an oven with the aforementioned foolproof and oil-proof cover structure.

[0021] Figure 6 for Figure 1 A schematic diagram of the torsion spring shielding assembly of an oven with the aforementioned foolproof and oil-proof cover structure.

[0022] Figure 7 for Figure 1 A schematic diagram of the mounting frame of an oven with the aforementioned foolproof and oil-proof cover structure.

[0023] Figure 8 for Figure 1 A schematic diagram of the oil storage pan of an oven with the aforementioned foolproof and oil-proof cover structure.

[0024] Figure 9 for Figure 1 A schematic diagram of the motor assembly of an oven with the aforementioned foolproof and oil-proof cover structure. Detailed Implementation

[0025] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0026] The terminology used herein is intended to explain the embodiments and is not intended to limit and / or restrict the present invention. It should be understood that the terms "front," "rear," "left," "right," "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] See Figures 1 to 9 This is a structural diagram of the oven with a foolproof and oil-proof cover structure provided by this utility model. The oven with the foolproof and oil-proof cover structure includes an oven body 10, an oil-proof cover 20 disposed on the oven body 10, and a foolproof mechanism 30 disposed below the oil-proof cover 20. It is conceivable that the oven with the foolproof and oil-proof cover structure also includes other functional modules, such as a combustion furnace and a guide rail device, which are technologies known to those skilled in the art and will not be described in detail here.

[0028] The main body of the oven 10 includes a shell 11, an oil storage tray 12 fixedly installed on the shell 11, two oil drain plates 13 disposed on the oil storage tray 12, a mounting frame 14 disposed below the oil storage tray 12, a motor assembly 15 disposed in the mounting frame 14, and a roasting rod assembly 16 inserted into the motor assembly 15.

[0029] The housing 11 is a frame with an opening on one side, which is used to carry and house the aforementioned functional components and to protect them.

[0030] The oil storage pan 12 is fixedly mounted on the housing 11, and its shape can be set according to actual needs. For example... Figure 8As shown, the oil storage tray 12 has an oil-blocking flange around its edge and a groove 121 in its center. The groove 121 provides space for the barbecue rod assembly 16 to move back and forth, allowing control of the meat's doneness by adjusting the distance between the barbecue rod assembly 16 and the heat source. A groove flange 122 protrudes from the outer periphery of the groove 121, facing away from the mounting frame 14. The groove flange 122 supports the oil shield 20 and prevents oil from the oil storage tray 12 from flowing down the groove 121 and contaminating the motor assembly 15. Alternatively, an oil guide pipe could be installed on the oil storage tray 12 to direct oil outwards, preventing overflow.

[0031] A second groove 131 is provided at the joint of the two oil-draining plates 13, corresponding to the groove 121, to provide space for the barbecue rod assembly 16 to move back and forth. The two oil-draining plates 13 have supporting flanges on the side facing the oil storage tray 12, and these flanges are abutted against the edge of the oil storage tray 12, so that the two oil-draining plates 13 are joined above the oil-proof cover 20. The two oil-draining plates 13 separate the residue and oil falling from the barbecue, leaving the residue on the oil-draining plates 13 and allowing the oil to fall into the oil storage tray 12.

[0032] The mounting frame 14 is fixedly disposed within the housing 11 and serves to support the motor assembly 15. The mounting frame 14 has a first mounting hole 141 through which the barbecue rod assembly 16 passes, and a second mounting hole 142 through which the pin 312 of the foolproof mechanism 30 passes. The first mounting hole 141 and the second mounting hole 142 cooperate with the foolproof mechanism 30 for installation, such that the barbecue rod assembly 16 can only pass through the first mounting hole 141 and connect to the motor assembly 15 after the oil-proof cover 20 with the foolproof mechanism 30 is assembled.

[0033] The motor assembly 15 includes a motor 151 fixedly mounted on the mounting frame 14, and a cross-shaped output head 152 fixedly connected to the barbecue rod assembly 16. The cross-shaped output head 152 is inserted and fixed to the barbecue rod assembly 16, so that the motor 151 can drive the barbecue rod assembly 16 to rotate, thereby allowing the barbecue on the barbecue rod assembly 16 to be heated evenly.

[0034] The barbecue rod assembly 16 includes a barbecue rod 161 and a connector 162 fixedly mounted on the barbecue rod 161. The connector 162 passes sequentially through the second slide groove 131, the oil-proof cover 20, the slide groove 121, the foolproof mechanism 30, and the first mounting hole 141, and is finally plugged into the motor assembly 15. The connector 162 is used to connect to the cross-shaped output head 152 of the motor assembly 15, therefore a plug-in slot is provided on the connector 162. It is conceivable that, in order to allow the barbecue rod assembly 16 to rotate smoothly, a bearing can also be provided between the connector 162 and the mounting frame 14 to reduce friction.

[0035] like Figure 8 As shown, the oil shield 20 is a groove-shaped structure that covers the outside of the slide rail flange 122, serving to shield the slide rail 121 and prevent oil from falling into the motor assembly 15. The oil shield 20 is movably fitted onto the slide rail flange 122. The length of the oil shield 20 can be greater than or equal to twice the length of the slide rail 121, so that the oil shield 20 still covers the slide rail 121 when it moves. The height of the oil shield 20 can be less than the height of the slide rail flange 122, so that the oil shield 20 avoids friction with the oil reservoir 12 and thus avoids noise when it moves.

[0036] The foolproof mechanism 30 includes a pin assembly 31 fixedly connected to the oil cover 20, an auxiliary plate 32 disposed between the oil reservoir 12 and the mounting frame 14, and a torsion spring shielding assembly 33 disposed on the side of the mounting frame 14 facing the pin assembly 31.

[0037] The pin assembly 31 includes a mounting plate 311 fixedly connected to the oil cover 20, and a pin 312 fixedly disposed on the side of the mounting plate 311 facing the torsion spring shielding assembly 33. The mounting plate 311 is fixedly connected to the pin 312. The mounting plate 311 is used to fix the pin 312 on the side of the oil cover 20 facing the mounting frame 14. Since the pin assembly 31 is fixedly disposed on the oil cover 20, when assembling the barbecue rod assembly 16 to the motor assembly 15, the pin assembly 31 can only open the second mounting hole 142 when the oil cover 20 is placed on the sliding flange 122, and then the connector 162 can be inserted into the first mounting hole 141 to connect with the motor assembly 15, thus achieving the purpose of preventing mistaken connection.

[0038] The pin 312 passes through the auxiliary plate 32. The pin 312 includes a guide surface 3121 at its end and a snap-fit ​​groove 3122 above the guide surface 3121. The guide surface 3121 is inclined from the end of the pin 312, gradually increasing in size. The pin 312 corresponds to the second mounting hole 142 and is inserted into the second mounting hole 142 when the oil cover 20 is placed on the sliding flange 122. The tip of the pin 312 is positioned to correspond to the gap between the second mounting hole 142 and the torsion spring blocking assembly 33, so that during insertion into the second mounting hole 142, the pin 312 can squeeze into the gap and gradually widen the gap until it is fully inserted into the second mounting hole 142, until the torsion spring blocking assembly 33 completely opens the second mounting hole 142. The snap-fit ​​groove 3122 is disposed on the pin 312 and snaps into the torsion spring blocking component 33, so that when the snap-fit ​​groove 3122 moves up and down after snapping, its groove wall is blocked by the torsion spring blocking component 33, thereby preventing the oil cover 20 from being pulled out at will because the pin 312 is snapped into the torsion spring blocking component 33, making the installation of the oil cover 20 more stable.

[0039] The auxiliary mounting plate 32 is fixedly mounted on the mounting frame 14, and a barbecue rod guide cylinder 321 and a pin guide cylinder 322 are mounted on it. The barbecue rod guide cylinder 321 is positioned corresponding to the first mounting hole 141, and the pin guide cylinder 322 is positioned corresponding to the second mounting hole 142, both serving a guiding function. That is, when the first mounting hole 141 is unobstructed, after the connector 162 is inserted into the barbecue rod guide cylinder 321, the connector 162 only needs to continue moving in the same direction to be inserted into the first mounting hole 141. Similarly, after the pin is inserted into the pin guide cylinder 322, it only needs to continue moving in the same direction to be inserted into the second mounting hole 142.

[0040] like Figure 3 As shown, the torsion spring shielding assembly 33 includes a shielding plate 331 rotatably mounted on the mounting frame 14, a torsion spring assembly 332 fixedly mounted on the shielding plate 331 and the mounting frame 14, a half-shielding hole 333 on the shielding plate 331, and a roller 334 corresponding to the pin 312.

[0041] The baffle plate 331 is configured in conjunction with the pin assembly 31 and has two states. When the pin 312 of the pin assembly 31 is not inserted into the second mounting hole 142, the baffle plate 331 blocks the first and second mounting holes 141 and 142, preventing the connector 162 from being inserted into the cross output rod 152. When the pin 312 is inserted into the second mounting hole 142, the pin 312 pushes the baffle plate 331 to rotate, so that the baffle plate 331 does not block or partially blocks the first and second mounting holes 141 and 142, exposing the first and second mounting holes 141 and 142, thereby allowing the connector 162 to pass through the first mounting hole 141 and be inserted into the cross output rod 152. Therefore, the size of the shield 331 should be such that it can block the first and second mounting holes 141 and 142 when the pin 312 is not inserted into the second mounting hole 142, and can open the first and second mounting holes 141 and 142 when the pin 312 is inserted into the second mounting hole 142.

[0042] like Figure 6 As shown, the torsion spring assembly 332 includes a torsion spring 3321 disposed on the baffle plate 331, a connecting rod 3322 disposed at one end of the torsion spring 3321, a fixing rod 3323 disposed at the other end of the torsion spring 3321, a rotating screw 3324 disposed in the middle of the torsion spring 3321, a limiting rod 3325 disposed beside the pin 312, and a sliding groove 3326 disposed on the baffle plate 331.

[0043] The torsion spring 3321 is prior art and is used to provide restoring force to the baffle 331.

[0044] The connecting rod 3322 is fixedly mounted only on the baffle plate 331, and the fixing rod 3323 is fixedly mounted only on the mounting frame 14. The rotating screw 3324 fixes the torsion spring 3321 to the baffle plate 331 and the mounting frame 14, and the free end of the torsion spring 3321, i.e., the end where the connecting rod 3323 is located, is rotatably mounted on the mounting frame 14. Thus, when the baffle plate 331 is abutted by the pin 312, the baffle plate 331 can rotate around the rotating screw 3324, and the torsion spring 3321 is twisted, storing elastic force. When the pin 312 is pulled out from the second mounting hole 142, the baffle plate 331 returns to its original position under the restoring force of the torsion spring 3321. When the pin 312 is not inserted into the second mounting hole 142, the baffle plate 331 covers the first mounting hole 141. When the oil-proof cover 20 is installed on the sliding flange 122, the pin 312 is inserted into the second mounting hole 142, and the baffle plate 331 is pushed by the pin 312. At this time, the baffle plate 331 covering the first mounting hole 141 moves to expose the first mounting hole 141, thereby allowing the connector 162 to be inserted into the first mounting hole 141. When the pin 312 is pulled out from the second mounting hole 142, the baffle plate 331 covers the first and second mounting holes 141 and 142 again.

[0045] The limiting rod 3325 is fixedly mounted on the mounting frame 14 and located in the sliding groove 3326. When the baffle plate 331 moves, the limiting rod 3325 moves relative to the baffle plate 331.

[0046] The length of the sliding groove 3326 is greater than the diameter of the limiting rod 3324. The sliding groove 3326 and the limiting rod 3325 are provided to limit the movement range of the baffle 331 to prevent the baffle 331 from interfering with other components due to excessive range of motion.

[0047] When the pin 312 is not inserted into the second mounting hole 142, the partially obstructed hole 333 covers the first mounting hole 141, making the area of ​​the unobstructed first mounting hole 141 smaller than the cross-sectional area of ​​the end of the connector 162, thereby preventing the connector 162 from being inserted into the first mounting hole 141. When the oil cover 20 is installed on the sliding flange 122, the pin 312 is inserted into the second mounting hole 142 and pushes the baffle plate 331, and the partially obstructed hole 333 is exposed in the first mounting hole as the baffle plate 331 moves. When the first mounting hole 141 has an opening for the connector 162 to be installed, the connector 162 can pass through the first mounting hole 141 and be inserted into the cross output rod 152.

[0048] The roller 334 is disposed on the edge of the baffle plate 331, and the gap between the roller 334 and the second mounting hole 142 corresponds to the end of the pin 312. The roller 334 is used to reduce the friction between the guide surface 3121 of the pin 312 and the baffle plate 331, making it easier to insert the pin 312. During the process of inserting the pin 312 into the second mounting hole 142, the guide surface 3121 of the pin 312 is inserted into the gap between the roller 334 and the second mounting hole 142. With the cooperation of the torsion spring assembly 332, the half-blocking hole 333 on the baffle plate 331 is pushed to no longer block the first mounting hole 141, so that the connector 162 can be inserted through the first mounting hole 141 and connected to the cross output rod 152.

[0049] During installation, first, the oil-proof cover 20 is mounted on the oil storage tray 12, and the oil-draining plate 13 is mounted on the oil storage tray 12. Then, the connector 162 passes sequentially through the oil-draining plate 13, the oil-proof cover 20, the slide groove 121, the mounting plate 311, and the barbecue rod guide cylinder 321, and finally is inserted into the cross output rod 152. When the oil-proof cover 20 is placed on the slide groove flange 122, the pin 312 passes through the auxiliary plate 32 and enters the second mounting hole 142 through the gap between the roller 334 and the second mounting hole 142. The pin 312 pushes the cover plate 331 to fully expose the second mounting hole 142. At this time, the cover plate 331 covering the first mounting hole 141 rotates around the rotating screw 3324, so that the connector 162 can pass through the first mounting hole 141 and finally be inserted and fixed into the cross output rod 152 of the motor assembly 15.

[0050] Compared with the prior art, the oven with a foolproof and oil-proof cover structure provided by this utility model has a foolproof mechanism 30 that prevents the installation of the barbecue rod assembly 16 without the oil-proof cover 20, thereby avoiding the omission of the oil-proof cover 20 and preventing oil from leaking onto the motor assembly 15 and contaminating it. The foolproof mechanism 30 includes a baffle plate 331 and a torsion spring assembly 332, so that when the pin 312 is not inserted into the second mounting hole 142, the baffle plate 331 covers the first and second mounting holes 141 and 142. When the oil-proof cover 20 is placed on the sliding flange 122, the pin 312, which is fixed on the oil-proof cover 20, passes through the sliding groove 121 and the pin guide cylinder 322 and finally inserts into the second mounting hole 142. At the same time, the pin 312 pushes the baffle plate 331, exposing the first mounting hole 141, so that the connector 162 can be inserted. The anti-mistake mechanism 30 ensures that the barbecue rod assembly 16 is assembled only after the oil cover 20 is assembled, thus preventing the oil cover 20 from being omitted and ensuring the normal service life of the oven.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An oven with a foolproof and oil-proof hood structure, characterized in that: The oven with a foolproof and oil-proof cover structure includes an oven body, an oil-proof cover mounted on the oven body, and a foolproof mechanism located below the oil-proof cover. The oven body includes a shell, an oil reservoir, a mounting frame located below the oil reservoir, and a roasting rod assembly that connects to a motor assembly. The oil reservoir has a groove in its center and a groove flange on its outer periphery, with the groove flange protruding away from the shell. The mounting frame has a first mounting hole for inserting the roasting rod assembly and a second mounting hole for mounting the foolproof mechanism. The roasting rod assembly includes a roasting rod and a connector fixedly mounted on the roasting rod. The oil-proof cover covers the outer side of the groove flange. The foolproof mechanism includes a pin assembly fixedly connected to the oil-proof cover and a torsion spring shielding assembly located on the mounting frame facing the pin assembly. The pin assembly includes a mounting plate fixedly connected to the oil-proof cover and a shielding assembly fixedly located on the mounting plate facing the torsion spring shielding assembly. The pin corresponds to the second mounting hole and is inserted into the second mounting hole when the oil-proof cover is installed on the sliding flange. The torsion spring shielding assembly includes a shielding plate rotatably mounted on the mounting frame and a torsion spring assembly fixedly mounted on the shielding plate and the mounting frame. The pin includes a guide surface at the end of the pin, which is inclined from the end of the pin to the top. The tip of the pin is positioned to correspond to the gap between the second mounting hole and the torsion spring shielding assembly. When the pin is not inserted into the second mounting hole, the shielding plate covers the first mounting hole. When the oil-proof cover is installed on the sliding flange, the pin is inserted into the second mounting hole, and the shielding plate is pushed by the pin. At this time, the shielding plate covering the first mounting hole moves to expose the first mounting hole, allowing the connector to be inserted into the first mounting hole. The torsion spring assembly provides a restoring force to the shielding plate. When the pin is pulled out from the second mounting hole, the shielding plate covers the first and second mounting holes again.

2. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The oven body also includes two oil-draining plates disposed on the oil storage tray, and a motor assembly disposed in the mounting frame. The oil storage tray is fixedly disposed on the housing, and an oil-blocking flange is provided around the edge of the oil storage tray. A second sliding groove is provided at the joint of the two oil-draining plates, and the second sliding groove is provided corresponding to the sliding groove. A support flange is provided on the side of the two oil-draining plates facing the oil storage tray, and the support flange is attached to the edge of the oil storage tray.

3. The oven with a foolproof and oil-proof cover structure as described in claim 2, characterized in that: The mounting frame is fixedly installed inside the housing and supports the motor assembly. The motor assembly includes a motor fixedly installed on the mounting frame and a cross-shaped output head fixedly connected to the barbecue rod assembly. The connector passes through the second slide groove, the oil-proof cover, the slide groove, the foolproof mechanism, and the first mounting hole in sequence, and is finally inserted into the motor. The connector has a insertion slot.

4. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The foolproof mechanism includes an auxiliary plate disposed between the oil storage pan and the mounting frame. The auxiliary plate is fixedly disposed on the mounting frame and has a barbecue rod assembly guide cylinder and a pin guide cylinder disposed thereon. The barbecue rod guide cylinder is disposed corresponding to the first mounting hole and the pin guide cylinder is disposed corresponding to the second mounting hole.

5. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The pin also includes a snap-fit ​​groove disposed above the guide surface, the snap-fit ​​groove being disposed on the pin and engaging with the torsion spring blocking assembly.

6. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The torsion spring assembly includes a torsion spring disposed on the baffle plate, a connecting rod disposed at one end of the torsion spring, a fixing rod disposed at the other end of the torsion spring, and a rotating screw disposed in the middle of the torsion spring. The connecting rod is fixedly disposed only on the baffle plate, the fixing rod is fixedly disposed only on the mounting frame, and the rotating screw fixes the torsion spring to the baffle plate and the mounting frame. The free end of the torsion spring, the end where the connecting rod is located, is rotatably disposed on the mounting frame.

7. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The torsion spring assembly also includes a limiting rod disposed next to the pin and a sliding groove disposed on the baffle plate. The limiting rod is fixedly disposed on the mounting frame and located in the sliding groove. When the baffle plate moves, the limiting rod moves relative to the baffle plate.

8. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The torsion spring shielding assembly also includes a semi-shielding hole disposed on the shielding plate. When the oil-proof cover is installed on the sliding flange, the pin is inserted into the second mounting hole and pushes the shielding plate. The semi-shielding hole is exposed to the first mounting hole as the shielding plate moves.

9. The oven with a foolproof and oil-proof cover structure as described in claim 1, characterized in that: The torsion spring shielding assembly also includes a roller corresponding to the pin, the roller being disposed on the edge of the shielding plate, and the gap between the roller and the second mounting hole being disposed corresponding to the end of the pin.

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