CN211673744U - Cooking utensil with self-sealing function - Google Patents

Abstract

The utility model provides a cooking utensil with self sealss function. Cooking utensil with self sealss function includes the pot cover and the pot body, but the pot cover open and close ground lid is established on the pot body, and the pot cover includes: a cover assembly; the baking assembly is arranged in the cover body assembly; the inner cover is detachably arranged below the baking assembly, the inner cover is provided with an exhaust assembly extending towards the cover assembly, the baking assembly or the cover assembly is provided with a sealing cylinder for the exhaust assembly to pass through, and the sealing cylinder is in contact sealing with at least one part of the cover assembly or the baking assembly. The utility model provides an among the prior art cooking utensil have seal structure more and the sealed not tight problem that leads to.

Description

Cooking utensil with self-sealing function

Technical Field

The utility model relates to a household electrical appliances technical field particularly, relates to a cooking utensil with self sealss function.

Background

At present, the layers of the pressure baking integrated cooker structure are more, a plurality of sealing rings need to be arranged for sealing, and the conditions of difficult assembly and untight sealing exist. In addition, because the temperature that toasts needs is higher, the sealing washer is the plastic material mostly, receives high temperature to influence easily and takes place inefficacy.

That is to say, the cooking utensil in the prior art has the problem of the not tight seal that leads to that the seal structure is more.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a cooking utensil with self sealss function to there is more and the sealed not tight problem that leads to of seal structure in the cooking utensil among the solution prior art.

In order to achieve the above object, according to the utility model discloses an aspect provides a cooking utensil with self sealss function, including the pot cover and the pot body, the pot cover can open and close ground lid and establish on the pot body, and the pot cover includes: a cover assembly; the baking assembly is arranged in the cover body assembly; the inner cover is detachably arranged below the baking assembly, the inner cover is provided with an exhaust assembly extending towards the cover assembly, the baking assembly or the cover assembly is provided with a sealing cylinder for the exhaust assembly to pass through, and the sealing cylinder is in contact sealing with at least one part of the cover assembly or the baking assembly.

Through set up sealed section of thick bamboo on toasting subassembly or lid subassembly, can seal the clearance between toasting subassembly and the lid subassembly, just need not to set up the sealing member between toasting subassembly and lid subassembly, reduced the use of sealing member, reduced cooking utensil's the assembly degree of difficulty and reduced cooking utensil's assembly cost. In addition, with sealed section of thick bamboo setting on toasting subassembly or lid subassembly, toast the subassembly with lid subassembly assembly back together, the sealed position of section of thick bamboo is fixed can stabilize the sealed clearance of toasting between subassembly and the lid subassembly, has increased the sealed stability of cooking utensil.

Further, the lid assembly includes a lid having a sealing cylinder extending toward the grilling component, the sealing cylinder being sealed in contact with the grilling component, and a liner. The sealing cylinder extends out from the surface cover to the baking assembly, so that the gap between the surface cover and the lining at the exhaust assembly can be sealed simultaneously, the use of sealing elements is reduced, the sealing stability is improved, and a plurality of positions can be sealed simultaneously by one sealing cylinder.

Further, the roasting assembly comprises a reflecting cover and a heating element, wherein the reflecting cover is provided with a sealing cylinder. The bowl cover comprises a cover body assembly, a heating element, a reflecting cover, a cover body assembly and a cover body, wherein the cover body assembly is arranged on the bottom of the bowl cover, the reflecting cover is arranged on the heating element, the cover body assembly is arranged on the bottom of the bowl cover, the cover body assembly. The sealing cylinder is arranged on the reflecting cover, so that the gap between the baking assembly and the cover body assembly can be sealed, and meanwhile, the gap between the surface cover and the lining can be sealed.

Furthermore, the reflector comprises a first reflector and a second reflector, the first reflector is connected with the second reflector, the first reflector is far away from the inner cover relative to the second reflector, and the sealing cylinder penetrates through the first reflector from the second reflector and then extends into the cover body assembly. The heating element is positioned below the second reflector, the second reflector reflects heat radiated by the heating element into the pot body, and a heat insulation interval is arranged between the first reflector and the second reflector, so that the temperature transmitted to the first reflector is reduced, and the first reflector can further insulate heat, and the temperature transmitted to the cover body assembly is reduced.

Further, lid subassembly includes face lid and inside lining, and face lid or inside lining have the exhaust hole, and the exhaust hole corresponds the exhaust subassembly setting, and the edge in exhaust hole has the fender muscle to toasting the subassembly and stretching out, keeps off the muscle and seals a section of thick bamboo and in the cooperation of the footpath backstop of sealed section of thick bamboo. The stop rib and the stop matching of the sealing barrel can reduce the shaking of the sealing barrel, and further the problem of poor sealing is reduced.

Furthermore, the blocking rib is attached to the inner wall of the sealing cylinder; and/or the top surface of the sealing cylinder abuts the face cap or the liner. The baffle rib is attached to the inner wall of the sealing cylinder to form one-time sealing of the cover body assembly, and gas is prevented from entering the cover body. The secondary sealing of the cover body assembly is formed between the top surface of the sealing barrel and the surface cover, the sealing performance between the baking assembly and the cover body assembly is greatly increased, and the sealing stability is improved.

Furthermore, the surface cover is provided with a sealing rib extending towards the lining, the blocking rib and the sealing rib form a slot, the sealing cylinder extends into the slot and is in transition fit with the slot, and sealing is formed between the surface cover and the reflecting cover. Set up like this and make sealed section of thick bamboo and keep off all to form sealedly between muscle, the sealed muscle to reduce gas and enter into the clearance department between inside lining and the face lid, increased cooking utensil's leakproofness.

Furthermore, the cover body assembly further comprises a lining, the lining is provided with a stopping cylinder, and the sealing cylinder extends into the stopping cylinder and is matched with the inner wall of the stopping cylinder in a radial stopping mode of the sealing cylinder. The stop cylinder and the sealing cylinder are matched with each other, so that the shaking of the sealing cylinder can be reduced, and the sealing stability of the sealing cylinder is further improved.

Further, the inner wall of the backstop cylinder is provided with a convex edge section extending towards the sealing cylinder, and the convex edge section is attached to the outer wall of the sealing cylinder to form one-time sealing of the lining. The convex edge section is arranged to reduce the gas entering between the surface cover and the lining, so that the influence of damp gas on the electric device on the lining is avoided, and the working stability and the service life of the electric device on the lining are improved.

Furthermore, the top of the stopping cylinder is folded radially outwards and then vertically extends upwards to form a radial step surface on the inner wall of the stopping cylinder, the convex edge section is positioned below the radial step surface, and the extending end of the sealing rib of the cover body assembly abuts against the radial step surface to form lining secondary sealing; the part of the inner wall of the stopping cylinder, which is positioned above the radial step surface, is abutted against the outer wall of the sealing cylinder to form the lining three-time sealing. The lining, the surface cover and the sealing barrel form three times of sealing, so that gas entering between the lining and the surface cover is greatly reduced, the airtightness between the lining and the surface cover is improved, and the electric device on the lining can work stably.

Further, the thickness of the sealing rib of the cap assembly is gradually reduced in a direction approaching the inner cap. When the thickness of the sealing rib is gradually reduced, the sealing rib can be conveniently extended into a gap between the sealing cylinder and the lining, and at least one part of the sealing rib is in interference fit with the lining.

The cooker cover further comprises an exhaust sealing ring, the exhaust sealing ring is mounted on the exhaust assembly, the exhaust assembly is provided with a mounting convex edge, the exhaust sealing ring is provided with a mounting ring groove for the mounting convex edge to extend into, the exhaust sealing ring is abutted against a first reflecting cover of the baking assembly so as to seal a gap between the first reflecting cover and the exhaust assembly, and the exhaust sealing ring is arranged on the exhaust assembly and can be detached together with the inner cover; and/or the vent assembly includes at least one of a pressure limiting valve seat, a check valve seat. The clearance between exhaust subassembly and the subassembly that toasts can be sealed in the setting of exhaust sealing washer, reduces gaseous inside that enters into the subassembly that toasts, and then reduces the influence of humid gas to the inside device of subassembly that toasts. The arrangement of the mounting convex edge can provide a mounting position for the exhaust sealing ring, so that the exhaust sealing ring can be stably sleeved on the exhaust assembly. The exhaust sealing ring and the inner cover are detachably arranged together, so that high-temperature baking of the baking assembly on the exhaust sealing ring can be reduced, and the service life of the exhaust sealing ring is prolonged.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a pot cover of a cooking appliance according to an alternative embodiment of the present invention; and

figure 2 shows an exploded view of the lid of figure 1;

fig. 3 shows an enlarged view at Q in fig. 1.

Wherein the figures include the following reference numerals:

10. a pot cover; 30. a cover assembly; 35. a face cover; 351. an exhaust hole; 352. blocking ribs; 354. sealing the ribs; 36. a liner; 361. a stopper cylinder; 365. a convex edge section; 366. a step surface; 40. a baking assembly; 41. a heating element; 44. a reflector; 441. a first bowl; 442. a second bowl; 50. an inner cover; 54. an exhaust assembly; 541. installing a convex edge; 200. an exhaust seal ring; 208. mounting a ring groove; 230. and (6) sealing the cylinder.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the sealing structure of the cooking utensil is more and the sealing is not tight in the prior art, the utility model provides a cooking utensil with self sealss function.

As shown in fig. 1 to 3, the cooking appliance with the self-sealing function includes a lid 10 and a pot body, the lid 10 is openably and closably covered on the pot body, the lid 10 includes a lid body assembly 30, a toasting assembly 40 and an inner lid 50, the toasting assembly 40 is disposed in the lid body assembly 30, the inner lid 50 is detachably disposed under the toasting assembly 40, the inner lid 50 has an exhaust assembly 54 extending toward the lid body assembly 30, the toasting assembly 40 or the lid body assembly 30 has a sealing cylinder 230 for the exhaust assembly 54 to pass through, and the sealing cylinder 230 is in contact sealing with at least a portion of the lid body assembly 30 or the toasting assembly 40.

By providing the sealing tube 230 on the baking assembly 40 or the lid assembly 30, the gap between the baking assembly 40 and the lid assembly 30 can be sealed, and a sealing member does not need to be provided between the baking assembly 40 and the lid assembly 30, so that the use of the sealing member is reduced, the assembly difficulty of the cooking appliance is reduced, and the assembly cost of the cooking appliance is reduced. In addition, the sealing cylinder 230 is disposed on the toasting assembly 40 or the cover assembly 30, and after the toasting assembly 40 and the cover assembly 30 are assembled together, the position of the sealing cylinder 230 is fixed, so that the gap between the toasting assembly 40 and the cover assembly 30 can be stably sealed, and the sealing stability of the cooking appliance is improved.

As shown in fig. 1 to 3, the cover assembly 30 includes a cover 35 and a liner 36, the cover 35 having a sealing cylinder 230 extending toward the toasting assembly 40, the sealing cylinder 230 being sealed in contact with the toasting assembly 40. The sealing cylinder 230 extends from the surface cover 35 to the baking assembly 40, so that the gap between the surface cover 35 and the lining 36 at the exhaust assembly 54 can be sealed simultaneously, the use of sealing elements is reduced, the sealing stability is improved, and the sealing cylinder 230 can seal multiple positions simultaneously.

Specifically, the toasting assembly 40 includes a reflective hood 44 and a heating element 41, the reflective hood 44 being provided with a sealing cylinder 230. The reflective cover 44 irradiates the heating element 41 to prevent the high-temperature gas generated by the heating element 41 from radiating to the cover assembly 30, thereby preventing the high temperature from affecting the cover assembly 30, and reflecting the temperature into the pot body to cook the food in the pot body quickly. The sealing cylinder 230 is disposed on the reflection housing 44 to seal the gap between the bake assembly 40 and the lid assembly 30 and also seal the gap between the face cover 35 and the inner liner 36.

As shown in fig. 1 to 3, the reflection cover 44 includes a first reflection cover 441 and a second reflection cover 442, the first reflection cover 441 is connected to the second reflection cover 442, the first reflection cover 441 is disposed away from the inner cover 50 relative to the second reflection cover 442, and the sealing cylinder 230 passes through the first reflection cover 441 from the second reflection cover 442 and then extends into the cover assembly 30. The heating element 41 is located below the second reflection cover 442, the second reflection cover 442 reflects heat radiated from the heating element 41 into the pot body, and a heat insulation space is provided between the first reflection cover 441 and the second reflection cover 442, so as to reduce the temperature transmitted to the first reflection cover 441, and the first reflection cover 441 can further insulate heat, thereby reducing the temperature transmitted to the cover assembly 30. The sealing cylinder 230 extends from the second reflection cover 442 to the cover assembly 30, so that the sealing cylinder 230 can further seal the gap between the first reflection cover 441 and the second reflection cover 442 near the exhaust assembly 54, and prevent high-temperature gas from entering between the first reflection cover 441 and the second reflection cover 442.

Optionally, the sealing cylinder 230 is of an insulating material.

As shown in fig. 3, the cover assembly 30 includes a surface cover 35 and a lining 36, the surface cover 35 or the lining 36 has an exhaust hole 351, the exhaust hole 351 is disposed corresponding to the exhaust assembly 54, a rib 352 extending toward the toasting assembly 40 is disposed at an edge of the exhaust hole 351, and the rib 352 is engaged with the sealing cylinder 230 in a radial direction of the sealing cylinder 230. The stop rib 352 is matched with the sealing cylinder 230 in a stop manner, so that the shaking of the sealing cylinder 230 can be reduced, and the problem of poor sealing is further reduced.

As shown in fig. 3, the stop rib 352 is attached to the inner wall of the sealing cylinder 230; and/or the top surface of the sealing cylinder 230 abuts the face cap 35 or the liner 36. The rib 352 is attached to the inner wall of the sealing cylinder 230 to form a primary seal of the cover assembly 30, so as to prevent gas from entering the cover assembly 30. The secondary sealing of the cover assembly 30 is formed between the top surface of the sealing cylinder 230 and the surface cover 35, which greatly increases the sealing performance between the baking assembly 40 and the cover assembly 30 and increases the sealing stability.

As shown in fig. 3, the cover assembly 30 further includes a liner 36, the liner 36 has a stopper cylinder 361, and the sealing cylinder 230 extends into the stopper cylinder 361 and is in stop-fit with the inner wall of the stopper cylinder 361 in the radial direction of the sealing cylinder 230. The stopping cylinder 361 and the sealing cylinder 230 are matched with each other, so that the shaking of the sealing cylinder 230 can be reduced, and the sealing stability of the sealing cylinder 230 is further improved.

As shown in fig. 3, the inner wall of the stopper cylinder 361 has a convex edge section 365 protruding toward the sealing cylinder 230, and the convex edge section 365 is attached to the outer wall of the sealing cylinder 230 to form a primary seal of the liner. The provision of the raised edge 365 reduces the ingress of gases between the face cap 35 and the inner liner 36, thereby avoiding the effects of moisture on the electrical components on the inner liner 36, and increasing the stability and life of the electrical components on the inner liner 36.

As shown in fig. 3, the face cover 35 has a sealing rib 354 extending toward the lining 36, the blocking rib 352 and the sealing rib 354 form an insertion slot, the sealing cylinder 230 extends into the insertion slot and is in transition fit with the insertion slot, and the face cover 35 and the reflective cover 44 form a seal. The arrangement makes the sealing cylinder 230 form a seal with the stop rib 352 and the sealing rib 354, so that gas is prevented from entering a gap between the inner liner 36 and the face cover 35, and the sealing performance of the cooking utensil is improved.

As shown in fig. 3, the lid assembly 30 includes a face cover 35, a liner 36 disposed below the face cover 35, the face cover 35 having a vent hole 351, the vent hole 351 being disposed corresponding to the vent assembly 54, the face cover 35 having a sealing rib 354 protruding toward the liner 36, the sealing rib 354 being located outside the sealing cylinder 230 and abutting against the liner 36 to form at least a liner secondary seal. This arrangement further increases the sealing property between the lid 35 and the inner liner 36 without providing a separate sealing member, which reduces the difficulty of assembling the cooking appliance.

As shown in fig. 3, the top of the stopping cylinder 361 is folded radially outward and then extends vertically upward to form a radial step surface 366 on the inner wall of the stopping cylinder 361, the protruding edge section 365 is located below the radial step surface 366, and the protruding end of the sealing rib 354 of the cover body assembly 30 abuts against the radial step surface 366 to form a lining secondary seal; the portion of the inner wall of the stopper barrel 361 above the radial step surface 366 abuts the outer wall of the seal barrel 230 to form a liner triple seal. Three-stage sealing is formed between the lining 36 and the face cover 35 and between the lining 36 and the sealing barrel 230, so that gas entering between the lining 36 and the face cover 35 is greatly reduced, the airtightness between the lining 36 and the face cover 35 is improved, and electric devices on the lining 36 can work stably.

As shown in fig. 3, the thickness of the sealing rib 354 of the cap body assembly 30 is gradually reduced in a direction approaching the inner cap 50. The tapered thickness of the sealing rib 354 facilitates extending the sealing rib 354 into the gap between the sealing cartridge 230 and the liner 36, and at least a portion of the sealing rib 354 has an interference fit with the liner 36.

As shown in fig. 3, the pot cover 10 further includes an exhaust sealing ring 200, the exhaust sealing ring 200 is mounted on the exhaust assembly 54, the exhaust assembly 54 has a mounting flange 541, the exhaust sealing ring 200 has a mounting ring groove 208 into which the mounting flange 541 extends, the exhaust sealing ring 200 abuts against the first reflection cover 441 of the bake assembly 40 to seal a gap between the first reflection cover 441 and the exhaust assembly 54, and the exhaust sealing ring 200 is disposed on the exhaust assembly 54 and is detachable with the inner lid 50. The vent seal 200 is configured to seal the gap between the vent assembly 54 and the bake assembly 40, thereby reducing the ingress of gases into the bake assembly 40 and further reducing the effect of humid gases on the components inside the bake assembly 40. The installation convex edge 541 is arranged to provide an installation position for the exhaust sealing ring 200, so that the exhaust sealing ring 200 can be stably sleeved on the exhaust assembly 54. The removable arrangement of the vent seal ring 200 together with the inner lid 50 reduces the high temperature baking of the bake assembly 40 to the vent seal ring 200, increasing the life of the vent seal ring 200.

Optionally, the vent assembly 54 includes at least one of a pressure limiting valve seat, a check valve seat.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. The utility model provides a cooking utensil with self sealss function, its characterized in that, includes pot lid (10) and the pot body, but pot lid (10) closure ground is established on the pot body, pot lid (10) include:

a cover assembly (30);

a toasting assembly (40), said toasting assembly (40) being disposed within said cover assembly (30);

an inner lid (50), said inner lid (50) being removably disposed beneath said toasting assembly (40), said inner lid (50) having a venting assembly (54) projecting towards said cover assembly (30), said toasting assembly (40) or said cover assembly (30) having a sealing cylinder (230) through which said venting assembly (54) passes, said sealing cylinder (230) being in contact sealing with at least a portion of said cover assembly (30) or said toasting assembly (40).

2. The cooking appliance with self-sealing function according to claim 1, wherein the cover assembly (30) comprises a face cover (35) and a liner (36), the face cover (35) or the liner (36) having the sealing cylinder (230) protruding toward the toasting assembly (40), the sealing cylinder (230) being sealed in contact with the toasting assembly (40).

3. The cooking appliance with self-sealing function according to claim 1, wherein the toasting assembly (40) comprises a reflector (44) and a heating element (41), the reflector (44) being provided with the sealing cartridge (230).

4. The cooking appliance with self-sealing function according to claim 3, wherein the reflection cover (44) comprises a first reflection cover (441) and a second reflection cover (442), the first reflection cover (441) is connected with the second reflection cover (442), the first reflection cover (441) is disposed away from the inner lid (50) relative to the second reflection cover (442), and the sealing cylinder (230) is extended into the lid assembly (30) from the second reflection cover (442) through the first reflection cover (441).

5. The cooking utensil with self-sealing function according to claim 3, wherein the cover assembly (30) comprises a face cover (35) and a liner (36), the face cover (35) or the liner (36) has an exhaust hole (351), the exhaust hole (351) is arranged corresponding to the exhaust assembly (54), a blocking rib (352) protruding towards the baking assembly (40) is arranged at the edge of the exhaust hole (351), and the blocking rib (352) is matched with the sealing cylinder (230) in a blocking way in the radial direction of the sealing cylinder (230).

6. The cooking appliance with self-sealing function according to claim 5,

the stop rib (352) is attached to the inner wall of the sealing cylinder (230); and/or

The top surface of the sealing cylinder (230) abuts against the surface cover (35) or the liner (36).

7. The cooking appliance with self-sealing function according to claim 5, wherein the face cover (35) has a sealing rib (354) protruding toward the liner (36), the blocking rib (352) and the sealing rib (354) form a slot, the sealing cylinder (230) protrudes into the slot and is in transition fit with the slot, and a seal is formed between the face cover (35) and the reflection cover (44).

8. The cooking appliance with self-sealing function according to claim 1 or 7, wherein the cover assembly (30) further comprises a liner (36), the liner (36) having a stopper cylinder (361), the sealing cylinder (230) extending into the stopper cylinder (361) and being in stop-fit with an inner wall of the stopper cylinder (361) in a radial direction of the sealing cylinder (230).

9. The cooking appliance with self-sealing function according to claim 8, wherein the inner wall of the stopper cylinder (361) has a convex edge section (365) protruding towards the sealing cylinder (230), the convex edge section (365) being arranged in abutment with the outer wall of the sealing cylinder (230) to form a liner primary seal.

10. The cooking appliance with the self-sealing function according to claim 9, wherein the top of the stopping cylinder (361) is folded radially outward and then extends vertically upward to form a radial step surface (366) on the inner wall of the stopping cylinder (361), the convex edge section (365) is located below the radial step surface (366),

the extending end of the sealing rib (354) of the cover body assembly (30) abuts against the radial step surface (366) to form lining secondary sealing;

the part of the inner wall of the stopping cylinder (361) above the radial step surface (366) is abutted with the outer wall of the sealing cylinder (230) to form lining three-time sealing.

11. The cooking appliance with self-sealing function according to claim 9, wherein the thickness of the sealing rib (354) of the lid assembly (30) is gradually reduced in a direction approaching the inner lid (50).

12. The cooking appliance having a self-sealing function according to any one of claims 1 to 7,

the pot cover (10) further comprises an exhaust sealing ring (200), the exhaust sealing ring (200) is installed on the exhaust assembly (54), the exhaust assembly (54) is provided with an installation convex edge (541), the exhaust sealing ring (200) is provided with an installation annular groove (208) for the installation convex edge (541) to extend into, the exhaust sealing ring (200) is abutted with the first reflecting cover (441) of the baking assembly (40) so as to seal a gap between the first reflecting cover (441) and the exhaust assembly (54), and the exhaust sealing ring (200) is arranged on the exhaust assembly (54) and can be detached together with the inner cover (50); and/or

The exhaust assembly (54) includes at least one of a pressure limiting valve seat and a check valve seat.

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