CN210144471U - A exhaust mechanism and cooking utensil lid for cooking utensil - Google Patents

Abstract

Embodiments of the present disclosure provide an exhaust mechanism for a cooking appliance and a cooking appliance cover. The exhaust mechanism described herein includes: a deformable portion disposed on the cooking appliance and deformable in response to a pressure change within the cooking appliance; a pressure limiting valve assembly comprising at least a first coupling portion; a valve seat arranged on the deformable portion and comprising a second coupling portion coupled with the first coupling portion, the pressure limiting valve assembly being switchable between a closed state and a venting state; and a retaining mechanism for coupling the pressure limiting valve assembly and the valve seat with the deformable portion and for displacing the valve seat in response to deformation of the deformable portion to retain the relative position between the valve seat and the pressure limiting valve assembly. The exhaust mechanism and the cooking utensil with the exhaust mechanism can keep the position relation between the pressure limiting valve component and the valve seat relatively stable, and improve the reliability of the operation of the exhaust mechanism and the stability of exhaust.

Description

A exhaust mechanism and cooking utensil lid for cooking utensil

Technical Field

Embodiments of the present disclosure relate generally to the field of kitchen appliances, and more particularly, to a venting mechanism and a cooking appliance lid for a cooking appliance.

Background

At present, kitchen cooking appliances are often used in household cooking. Generally, in a kitchen cooking appliance, such as a pressure cooker, the pressure in the cooking appliance increases during the cooking process. After cooking, in order to avoid danger when opening the cooking appliance, the cooking appliance is usually provided with an exhaust mechanism.

Existing pressure cooking appliances, such as electric pressure cookers, include a cover and a body. The cover body is provided with a pressure limiting valve exhaust mechanism. As will be further explained below, the deformation of the inner lid of the lid body under pressure occurs when the pressure inside the cooking appliance rises. In this case, the exhaust of the cooking appliance is not smooth, and in a severe case, even the valve may not be opened, so that the exhaust may not be performed normally.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problem of poor venting caused by pressure rise and other potential problems, embodiments of the present disclosure provide a venting mechanism for a cooking appliance and a cooking appliance. As will be understood from the following description, the exhaust mechanism and the cooking appliance described herein can maintain a relatively stable positional relationship between the pressure limiting valve assembly and the valve seat, improving the reliability of the operation of the exhaust mechanism and the stability of the exhaust.

In a first aspect of the present disclosure, a venting mechanism for a cooking appliance is provided. This exhaust mechanism includes: a deformable portion disposed on the cooking appliance and deformable in response to a pressure change within the cooking appliance; a pressure limiting valve assembly comprising at least a first coupling portion; a valve seat disposed on the deformable portion and including a second coupling portion coupled with the first coupling portion, the pressure limiting valve assembly being switchable between a closed state and a venting state by relative movement between the first and second coupling portions; and a retaining mechanism for coupling the pressure limiting valve assembly and the valve seat with the deformable portion and for displacing the valve seat in response to deformation of the deformable portion to retain the relative position between the valve seat and the pressure limiting valve assembly.

According to the embodiment of the disclosure, as the pressure limiting valve assembly and the valve seat are displaced together along with the deformation of the deformable part, the gap between the valve seat and the pressure limiting valve assembly can be kept unchanged, so that the relative movement between the first coupling part and the second coupling part can be ensured to be completely used for switching the working state of the pressure limiting valve assembly without generating idle stroke. Thereby, the reliability of the operation of the exhaust mechanism and the stability of the exhaust can be improved

In some embodiments, the pressure limiting valve assembly includes a cylindrical vent portion including a stopper portion coupled to the retaining mechanism for preventing the valve seat from disengaging from the deformable portion in a longitudinal direction of the cylindrical vent portion. In such an embodiment, since the structure of the columnar exhaust portion is simple and the displacement in synchronization with the valve seat can be maintained by the stopper portion provided thereon, the structure of the exhaust mechanism can be simplified.

In some embodiments, the cylindrical exhaust portion includes a fixed end, and the retaining mechanism includes: an abutting member coupled with the limiting portion and abutting against one end of the valve seat; and the fixed component is coupled with the fixed end and is used for fixing the pressure limiting valve component and the other end of the valve seat on the deformable part. Therefore, the pressure limiting valve assembly and the valve seat are fixed on the deformable part together, the pressure limiting valve assembly and the valve seat can be guaranteed to displace together along with the deformation of the deformable part, and therefore the relative position between the pressure limiting valve assembly and the valve seat can be reliably maintained.

In some embodiments, the pressure limiting valve assembly further comprises a valve portion and a drive mechanism for driving the valve portion relative to the valve seat to switch the state of the pressure limiting valve assembly. In such an embodiment, the valve portion is driven to open or close by the driving mechanism, the pressure limiting valve assembly can be automatically operated, and the exhaust mechanism can be automatically controlled.

In some embodiments, the valve portion includes a stop and the drive mechanism includes an electromagnetic assembly coupled to the stop to actuate the valve portion. In such an embodiment, the electromagnetic assembly is convenient to control, and the stop block is simple in structure and low in manufacturing cost. This can simplify the structure of the exhaust mechanism and reduce the control cost and manufacturing cost of the exhaust mechanism.

In some embodiments, one of the first and second coupling parts comprises a groove and the other comprises a projection inserted in the groove, the pressure limiting valve assembly being switchable between the closed state and the venting state by relative sliding between the projection and the profile of the groove. In such an embodiment, the groove and the tab are both simple mechanisms and are capable of converting lateral motion between the two into longitudinal motion. Thus, the driving portion of the pressure limiting valve assembly can be disposed in the lateral direction of the pressure limiting valve assembly, thereby improving the compactness of the exhaust mechanism structure.

In a second aspect of the present disclosure, a cooking appliance cover is provided. This lid includes: the exhaust mechanism as in any one of the preceding embodiments, wherein the valve seat includes a third coupling portion; the surface cover comprises a fourth coupling part coupled with the third coupling part and is used for limiting the rotation of the valve seat relative to the cover body; and an inner cover including a deformable portion and adapted to have the pressure limiting valve assembly and the valve seat disposed thereon.

In such an embodiment, the cover can be made to have the above-described effects for similar reasons.

In some embodiments, one of the third coupling part and the fourth coupling part includes a stopper groove, and the other of the third coupling part and the fourth coupling part includes a stopper rib inserted into the stopper groove. The limiting grooves and the limiting ribs are simple in structure, and the valve seat can be allowed to slide relative to the face cover while the valve seat is limited to rotate relative to the face cover. Thus, not only the structure of the cover body can be simplified, but also the valve seat can be reliably held to move together with the pressure limiting valve assembly.

In some embodiments, the face cover includes a receiving groove in which the valve seat slides. Therefore, the valve seat can be hidden in the surface cover while guiding the valve seat to slide, and the appearance of the cover body can be more attractive.

In some embodiments, further comprising a seat seal disposed between the seat and the receiving groove. Because need relative slip between disk seat and the holding tank, generally leave the clearance between disk seat and the holding tank, set up the leakproofness that the disk seat sealing washer can improve the lid between disk seat and holding tank.

In a third aspect of the present disclosure, a cooking appliance is provided. The cooking appliance comprises a cover according to any one of the preceding embodiments. For similar reasons, the cooking appliance can be made to have the above-described effects.

Further features of the present disclosure will become apparent from the following description of exemplary embodiments with reference to the attached drawings. It should be understood that this summary is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present disclosure.

FIG. 1 illustrates a diagram of the relative positions of a pressure relief valve assembly and a valve seat when the cover is undeformed in accordance with known technology;

FIG. 2 illustrates a diagram of the relative positions of a pressure relief valve assembly and a valve seat when the cover has been deformed in accordance with known techniques;

FIG. 3 illustrates a cross-sectional view of a cover according to an embodiment of the present disclosure;

FIG. 4 shows a cross-sectional view of an exhaust mechanism according to an embodiment of the present disclosure;

FIG. 5A illustrates a perspective view of a pressure limiting valve assembly in a closed state according to an embodiment of the present disclosure;

FIG. 5B illustrates a perspective view of the pressure limiting valve assembly in an open state according to an embodiment of the present disclosure;

FIG. 6 illustrates a diagram of the relative positions of a pressure relief valve assembly and a valve seat when a cover is undeformed according to an embodiment of the present disclosure;

FIG. 7 illustrates a diagram of the relative positions of a pressure relief valve assembly and a valve seat when a cover has been deformed according to an embodiment of the disclosure;

FIG. 8 illustrates an exploded view of a cover and venting mechanism according to an embodiment of the disclosure; and

FIG. 9 shows a block diagram of a valve seat mated with a cover in accordance with an embodiment of the present disclosure.

The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements.

Detailed Description

The present disclosure will now be described with reference to several example embodiments. It should be understood that these examples are described only for the purpose of enabling those skilled in the art to better understand and thereby enable the present disclosure, and are not intended to set forth any limitations on the scope of the technical solutions of the present disclosure.

As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" will be read as "based at least in part on". The terms "one embodiment" and "an embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions may be included below. The definitions of the terms are consistent throughout the specification unless the context clearly dictates otherwise.

A known pressure cooking appliance, such as an electric pressure cooker, comprises a cover and a body. The cover body is provided with a pressure limiting valve exhaust mechanism 10'. As shown in fig. 1 and 2, the pressure limiting valve venting mechanism 10 ' includes a pressure limiting valve assembly 11 ' and a valve seat 12 '. The pressure limiting valve assembly 11 'includes a valve 111' and an exhaust rod 112 ', and exhaust is performed by opening the valve 111' through movement of the valve 111 'relative to the valve seat 12'.

When the pressure inside the cooking appliance rises, the inner lid of the lid body is pressed to be deformed. At this time, since the valve 111 ' and the exhaust rod 112 ' are fixed to the inner cap, they are displaced upward with the deformation of the inner cap, while the position of the valve seat 12 ' is not changed, which causes the gap between the valve seat 12 ' and the valve 111 ' to become large. However, the operation stroke of the valve 111 'is fixed, and the gap between the valve seat 12' and the valve 111 'becomes large, which results in a small effective stroke of the valve 111'. This results in a reduction of the venting gap between the valve 111 ' and the venting rod 112 ' when the pressure-limiting valve assembly 11 ' is vented, which leads to a poor venting. In severe cases, it may even result in the valve 111' not being opened and not being vented.

Embodiments of the present disclosure provide a cooking appliance. The cooking appliance includes a main body (not shown in the drawings) and a cover 100. In some embodiments, the cooking appliance may be a pressure cooker.

As shown in fig. 3 and 8, the lid body 100 generally includes a face cover 101, an inner lid 102, and a venting mechanism 10. The exhaust mechanism 10 includes a pressure limiting valve assembly 11, a valve seat 12, and a retaining mechanism 20. The pressure limiting valve assembly 11 and the valve seat 12 are arranged on the inner cover 102 by means of a retaining mechanism 20.

As shown in fig. 4 and 8, the inner lid 102 includes the deformable portion 13. The valve seat 12 is arranged on the deformable portion 13. Moreover, the pressure limiting valve assembly 11 and the valve seat 12 are coupled with the deformable portion 13 through the retaining mechanism 20, so that the pressure limiting valve assembly 11 and the valve seat 12 can be displaced along with the deformation of the deformable portion 13.

As shown in fig. 5A and 5B, the pressure limiting valve assembly 11 includes at least a first coupling portion 1111. The valve seat 12 includes a second coupling portion 121. The second coupling part 121 is coupled with the first coupling part 1111. The pressure limiting valve assembly 11 can be switched between the closed state shown in fig. 5A and the exhaust state shown in fig. 5B by the relative movement between the first coupling portion 1111 and the second coupling portion 121.

As shown in fig. 8 and 9, the valve seat 12 includes the third coupling portion 122, and the face cover 101 includes the fourth coupling portion 1011. The fourth coupling portion 1011 is coupled to the third coupling portion 122, and this coupling allows the valve seat 12 to slide with respect to the face cover 101, while restricting the valve seat 12 from rotating with respect to the face cover 101.

As shown in fig. 6 and 7, when the cooking appliance cooks food, the inner lid 102 may be deformed as the pressure inside the cooking appliance increases. At this time, since the pressure limiting valve assembly 11 and the valve seat 12 are coupled to the deformable portion 13, the pressure limiting valve assembly 11 is displaced along with the deformation of the inner lid 102. Further, the valve seat 12 is able to slide with respect to the face cover 101, and also to displace in synchronization with the deformation of the inner cover 102 together with the pressure limiting valve assembly 11, so that the relative position between the pressure limiting valve assembly 11 and the valve seat 12 can be kept unchanged.

In this case, as shown in fig. 7, the gap between the first coupling portion 1111 and the second coupling portion 121 is not increased, so that the relative movement between the first coupling portion 1111 and the second coupling portion 121 can be used to switch the operation state of the pressure limiting valve assembly 11 as a whole without generating the idle stroke. Thereby, the reliability of the operation of the exhaust mechanism 10 and the stability of the exhaust can be improved.

In certain embodiments, as shown in FIG. 8, the pressure limiting valve assembly 11 may further include a valve portion 111, a cylindrical vent portion 112, and a drive mechanism 113. The first coupling portion 1111 may be disposed on the valve portion 111. The cylindrical exhaust portion 112 may be provided with a stopper portion 1121 coupled to the retaining mechanism 20 for preventing the valve seat 12 from being separated from the deformable portion 13 along the longitudinal direction of the cylindrical exhaust portion 112. Since the structure of the columnar exhaust portion 112 is simple and the displacement in synchronization with the valve seat 12 can be maintained by the stopper portion 1121 provided thereon, the structure of the exhaust mechanism 10 can be simplified.

In some embodiments, as shown in fig. 4 and 8, the cylindrical exhaust section 112 may include a fixed end 1122. The retaining mechanism 20 may include an abutment 21 and a securing assembly 22. The abutting piece 21 may be coupled with the stopper 1121 and abut against one end of the valve seat 12 to prevent the valve seat 12 from being separated from the deformable portion 13 in the longitudinal direction of the cylindrical exhaust portion 112. The fixing member 22 may be coupled to a fixed end 1122 of the cylindrical discharge portion 112 for fixing the pressure limiting valve assembly 11 and the other end of the valve seat 12 to the deformable portion 13. In some examples, the abutment 21 may be a flat washer. However, it should be understood that the abutment 21 is not limited to a flat washer, and any other component capable of abutting the valve seat 12 is contemplated within the scope of the present application.

In such an embodiment, fixing the pressure limiting valve assembly 11 and the valve seat 12 together to the deformable portion 13 can ensure that the pressure limiting valve assembly 11 and the valve seat 12 are displaced together with the deformation of the deformable portion 13, so that the relative position between the pressure limiting valve assembly 11 and the valve seat 12 can be reliably maintained.

In certain embodiments, as shown in fig. 4 and 8, the fixing assembly 22 may include an O-ring 221, an arc washer 222, a lock washer 2233, a lock nut 224, and an anti-jam nut 225. The O-ring 221, the arc-shaped washer 222, and the lock washer 223 may be sequentially fitted over the fixed end 1122 of the cylindrical exhaust portion 112, and then the cylindrical exhaust portion 112 and the valve seat 12 may be fixed to the deformable portion 13 of the inner lid 102 by the lock nut 224 and the anti-blocking nut 225.

In such an embodiment, an O-ring 221 may be used to seal the gap between the cylindrical vent portion 112 and the deformable portion 13. An arcuate shim 222 may be used to cover the O-ring 221 to protect the O-ring 221. The lock washer 223 may prevent the lock nut 224 from being loosened after the lock nut 224 is tightened. The anti-blocking nut 225 can prevent the cylindrical exhaust portion 112 from being partially or completely blocked and thus from being smoothly exhausted.

In some embodiments, the drive mechanism 113 is used to drive the valve portion 111 to move relative to the valve seat 12 to switch the state of the pressure limiting valve assembly 11. At this time, the valve portion 111 is driven to open or close by the driving mechanism 113, the pressure limiting valve assembly 11 can be automatically operated, and the exhaust mechanism 10 can be automatically controlled.

In some embodiments, the valve portion 111 may be a weight and the cylindrical exhaust portion may be an exhaust rod. It should be understood, however, that the examples relating to the valve portion 111, the cylindrical vent portion 112 are merely exemplary and any other applicable pressure limiting valve assembly types are within the scope of the present disclosure.

In some embodiments, as shown in fig. 8, the valve portion 111 may further include a stop 1112. The driving mechanism 113 may include an electromagnetic assembly coupled to the stopper 1112 to drive the valve portion 111 to perform an opening or closing action. In such an embodiment, the electromagnetic assembly is easy to control, and the stop 1112 has a simple structure and low manufacturing cost. This can simplify the structure of the exhaust mechanism 10, and can reduce the control cost and the manufacturing cost of the exhaust mechanism 10. In some examples, the electromagnetic assembly may be an electromagnet assembly disposed on the face cover 101. However, it should be understood that the driving mechanism 113 is not limited to an electromagnetic component, and any other mechanism capable of driving the valve portion 111 to operate, such as a mechanical structure driven by a motor, may be used.

In some embodiments, as shown in fig. 5A and 5B, the first coupling portion 1111 may be a V-shaped groove and the second coupling portion 121 may be a bump. Although in fig. 5A and 5B the V-shaped groove is provided on the valve portion 111 and the protrusion is provided on the valve seat 12, it should be understood that the positions of the V-shaped groove and the protrusion may be interchanged, i.e., the protrusion may be provided on the valve portion 111 and the V-shaped groove may be provided on the valve seat 12. When the driving mechanism 113 drives the pressure limiting valve assembly 11 to act, the pressure limiting valve assembly 11 can be switched between the closed state and the gas discharge state by the relative sliding between the protrusion and the profile of the V-shaped groove.

In such an embodiment, the V-shaped groove and the tab are both simple mechanisms and are capable of converting lateral motion between the two into longitudinal motion. Thereby, the drive mechanism 113 of the pressure limiting valve assembly 11 can be disposed in the lateral direction of the pressure limiting valve assembly 11, thereby improving the compactness of the structure of the exhaust mechanism 10. However, it should be understood that the structures of the first coupling portion 1111 and the second coupling portion 121 are not limited to the V-shaped groove and the protrusion, but may be any other structures capable of driving the pressure limiting valve assembly 11 to be opened or closed, such as an arc-shaped groove and a protrusion, a wedge-shaped block engaged with each other, and the like.

In some embodiments, as shown in fig. 9, 3 first coupling parts 1111 may be disposed on the valve part 111. The valve seat 12 may be provided with 3 second coupling parts 121. However, it should be understood that the number of the first coupling parts 1111 and the second coupling parts 121 is not limited to 3, but may be 1, 2, 4, etc.

In some embodiments, as shown in fig. 9, the third coupling portion 122 may be one or more limiting grooves, and the fourth coupling portion 1011 may be one or more limiting ribs. The limiting rib is inserted into the limiting groove, and can allow the valve seat 12 to slide relative to the face cover 101, and limit the valve seat 12 to rotate relative to the face cover 101. Although in fig. 9, the stopper groove is provided on the valve seat 12 and the stopper rib is provided on the face cover 101, it should be understood that the positions of the stopper groove and the stopper rib may be interchanged, that is, the stopper rib is provided on the valve seat 12 and the stopper groove is provided on the face cover 101.

In such an embodiment, the stopper groove and the stopper rib are simple in structure, and can allow the valve seat 12 to slide with respect to the face cover 101 while restricting the rotation of the valve seat 12 with respect to the face cover 101 to maintain the relative position of the valve seat 12 and the pressure limiting valve assembly 11. However, it should be understood that the structures of the third coupling portion 122 and the fourth coupling portion 1011 are not limited to the limiting groove and the limiting rib, and may be any other structures capable of allowing the valve seat 12 to slide relative to the face cover 101 and limiting the rotation of the valve seat 12 relative to the face cover 101, such as a spline and a spline housing.

In some embodiments, as shown in fig. 8 and 9, the face cover 101 may include a receiving groove 1012 in which the valve seat 12 slides. This allows the valve seat 12 to be hidden inside the face cover 101 while guiding the sliding of the valve seat 12, thereby making the appearance of the lid body 100 more beautiful.

In certain embodiments, as shown in fig. 4 and 8, the cover body 100 may further include a seat seal 14 disposed between the valve seat 12 and the receiving groove 1012. A seat seal 14 is disposed on the periphery of the valve seat 12. Since the valve seat 12 and the receiving groove 1012 need to be slid relative to each other, a gap is generally left between the valve seat 12 and the receiving groove 1012, and the provision of the valve seat seal ring 14 between the valve seat 12 and the receiving groove 1012 can improve the sealing performance of the lid body 100.

In certain embodiments, as shown in fig. 4 and 8, the exhaust assembly 10 may further include a sealing ring 15 disposed between the exhaust stem 112 and the valve seat 12 to seal a gap between the exhaust stem 112 and the valve seat 12.

It is to be understood that all numbers of the present disclosure are exemplary and may be adjusted according to specific application requirements.

It is to be understood that the above detailed embodiments of the disclosure are merely illustrative of or explaining the principles of the disclosure and are not limiting of the disclosure. Therefore, 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. Also, it is intended that the following claims cover all such changes and modifications that fall within the scope and boundaries of the claims or the equivalents of the scope and boundaries.

Claims (11)

1. An exhaust mechanism (10) for a cooking appliance, comprising:

a deformable portion (13) arranged on the cooking appliance and deformable in response to pressure changes within the cooking appliance;

a pressure limiting valve assembly (11) comprising at least a first coupling portion (1111);

a valve seat (12) arranged on the deformable portion (13) and comprising a second coupling portion (121) coupled with the first coupling portion (1111), the pressure-limiting valve assembly (11) being switchable between a closed state and a venting state by a relative movement between the first coupling portion (1111) and the second coupling portion (121); and

-retaining means (20) for coupling the pressure limiting valve assembly (11) and the valve seat (12) with the deformable portion (13) and for maintaining the relative position between the valve seat (12) and the pressure limiting valve assembly (11) in response to the pressure limiting valve assembly (11) and the valve seat (12) being displaced with the deformation of the deformable portion (13).

2. A vent mechanism (10) in accordance with claim 1, wherein the pressure limiting valve assembly (11) comprises a cylindrical vent portion (112), the cylindrical vent portion (112) comprising a stopper portion (1121) coupled to the retaining mechanism (20) for preventing the valve seat (12) from being separated from the deformable portion (13) in a longitudinal direction of the cylindrical vent portion (112).

3. The exhaust mechanism (10) according to claim 2, wherein the columnar exhaust portion (112) includes a fixed end (1122), and the holding mechanism (20) includes:

an abutting piece (21) coupled with the stopper portion (1121) and abutting one end of the valve seat (12); and

and the fixing component (22) is coupled with the fixed end (1122) and is used for fixing the other ends of the pressure limiting valve component (11) and the valve seat (12) to the deformable part (13).

4. A vent mechanism (10) according to claim 1, wherein the pressure limiting valve assembly (11) comprises a valve portion (111) and a drive mechanism (113), the drive mechanism (113) being adapted to drive the valve portion (111) to move relative to the valve seat (12) to switch the state of the pressure limiting valve assembly (11).

5. An exhaust mechanism (10) according to claim 4, characterized in that the valve part (111) comprises a stop (1112) and the drive mechanism (113) comprises an electromagnetic assembly coupled to the stop (1112) for driving the valve part (111) in motion.

6. A venting mechanism (10) as claimed in claim 1, characterized in that one of the first coupling part (1111) and the second coupling part (121) comprises a groove and the other comprises a projection inserted in the groove, the pressure-limiting valve assembly (11) being switchable between the closed state and the venting state by relative sliding between the projection and the profile of the groove.

7. A cooking appliance lid (100), comprising:

the exhaust mechanism (10) according to any one of claims 1 to 6, wherein the valve seat (12) includes a third coupling portion (122);

a face cover (101) including a fourth coupling portion (1011) coupled to the third coupling portion (122) for restricting rotation of the valve seat (12) with respect to the cover body (100); and

an inner cover (102) comprising said deformable portion (13) and adapted for having said pressure limiting valve assembly (11) and said valve seat (12) arranged thereon.

8. The cover (100) according to claim 7, wherein one of the third coupling part (122) and the fourth coupling part (1011) comprises a stopper groove, and the other of the third coupling part (122) and the fourth coupling part (1011) comprises a stopper rib inserted into the stopper groove.

9. Cover (100) according to claim 7, characterized in that said face cover (101) comprises a housing groove (1012) in which said valve seat (12) slides.

10. The cover (100) of claim 9, further comprising a seat seal (14) disposed between the seat (12) and the receiving groove (1012).

11. A cooking appliance, characterized in that it comprises a cover (100) according to any one of claims 7 to 10.

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