CN217365383U - Pot cover assembly and cooking utensil with same - Google Patents

Abstract

The utility model provides a pot cover subassembly and have its cooking utensil, the pot cover subassembly includes: the cover body is provided with a first through hole; the exhaust pipe is provided with an air inlet and an air outlet which are oppositely arranged, and the exhaust pipe is arranged in the first through hole in a penetrating mode; the pressure limiting valve is arranged at the exhaust port of the exhaust pipe; the structure of making an uproar falls, the structure of making an uproar falls has the chamber that holds that communicates each other and falls the chamber of making an uproar, the pressure limiting valve setting is holding the intracavity, falls the chamber of making an uproar and has relative first end and the second end that sets up, the first end in the chamber of making an uproar has the intercommunication groove, fall the chamber of making an uproar and pass through the intercommunication groove and hold the chamber intercommunication, the flow area in intercommunication groove is less than the flow area in the chamber of making an uproar, fall the structural first exhaust hole that is provided with of making an uproar, first exhaust hole and the second end intercommunication in the chamber of making an uproar. Through the technical scheme that this application provided, can solve the big problem of cooking utensil's exhaust noise among the prior art.

Description

Pot cover assembly and cooking utensil with same

Technical Field

The utility model relates to a life electrical apparatus technical field particularly, relates to a pot cover subassembly and have its cooking utensil.

Background

The existing electric pressure cooker is provided with a steam exhaust pipe on the cooker cover, a pressure limiting valve on the steam exhaust pipe, and a control mechanism is configured to realize the opening and closing between the pressure limiting valve and the steam exhaust pipe. When pressure is in the cooker, the control mechanism works, the pressure limiting valve and the steam exhaust pipe are opened, the pressure in the cooker can be exhausted along the exhaust pipe, and the pressure in the cooker is reduced. However, the water vapor is discharged at a high speed and the discharged flow rate is high, so that loud noise is generated in the exhaust process, and the use feeling of a user is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pot cover subassembly and have its cooking utensil to solve the big problem of cooking utensil's among the prior art exhaust noise.

According to an aspect of the utility model, a pot cover assembly is provided, pot cover assembly includes: the cover body is provided with a first through hole; the exhaust pipe is provided with a first air inlet and a first exhaust port which are arranged oppositely, and the exhaust pipe penetrates through the first through hole; the pressure limiting valve is arranged at the first exhaust port of the exhaust pipe; the structure of making an uproar falls, the structure of making an uproar falls has the chamber that holds that communicates each other and falls the chamber of making an uproar, the pressure limiting valve setting is holding the intracavity, falls the chamber of making an uproar and has relative first end and the second end that sets up, the first end in the chamber of making an uproar has the intercommunication groove, fall the chamber of making an uproar and pass through the intercommunication groove and hold the chamber intercommunication, the flow area in intercommunication groove is less than the flow area in the chamber of making an uproar, fall the structural first exhaust hole that is provided with of making an uproar, first exhaust hole and the second end intercommunication in the chamber of making an uproar.

Use the technical scheme of the utility model, the pressure limiting valve setting is in first exhaust port department, and the pressure limiting valve setting is holding the intracavity, falls the chamber of making an uproar and passes through the intercommunication groove and hold the chamber intercommunication to fall the first exhaust hole that structural setting of making an uproar and fall the chamber intercommunication of making an uproar. So set up, can make from the interior exhaust steam of pressure-limiting valve get into and hold the intracavity, steam gets into the intracavity of making an uproar via the intercommunication groove, and the first exhaust vent of rethread is discharged to the external world. And, the flow area of intercommunication groove is less than the flow area who makes an uproar the chamber of making an uproar like this, can make steam get into by holding the chamber and fall the chamber of making an uproar the back velocity of flow reduce to the noise that produces when can reducing steam and discharging by first exhaust opening.

Further, the structure of making an uproar falls includes a plurality of chambeies of making an uproar that fall, and a plurality of chamber annular settings of making an uproar that fall are in the periphery that holds the chamber, and a plurality of chamber of making an uproar all with first exhaust opening intercommunication of making an uproar falls. So set up, can make the dispersion of steam get into the different intracavity of making an uproar that fall, again via first exhaust hole discharge, the noise that produces when steam discharges can further be reduced like this.

Further, the noise reduction cavity extends along the radial direction of the cover body, and the noise reduction cavity is an arc-shaped channel. By adopting the structure, the noise reduction cavity of the arc-shaped channel enables the water vapor to circulate more smoothly, the water vapor is convenient to discharge, the motion direction of the water vapor can be changed, the flow length of the water vapor is prolonged, the kinetic energy of the water vapor is reduced, and the noise generated when the water vapor is discharged can be further reduced

Furthermore, the noise reduction cavity extends along the radial direction of the cover body, the bottom surface of the noise reduction cavity is obliquely arranged from the first end of the noise reduction cavity to the second end, and the bottom surface of the first end of the noise reduction cavity is lower than the bottom surface of the second end of the noise reduction cavity. So set up, the chamber of making an uproar of falling that the slope set up can play the guide effect to the vapor after the liquefaction, can hold the intracavity with the vapor introduction after the liquefaction, avoids the vapor after the liquefaction to produce the rotating seat and corrodes, when upset pot cover subassembly, can arrange the vapor after the liquefaction to external.

Further, the noise reducing structure includes: the rotary seat is fixed on the cover body and provided with a first surface and a second surface which are arranged oppositely, a steam hole and an exhaust groove are formed in the rotary seat, the steam hole penetrates through the rotary seat, and the exhaust groove is formed in the first surface of the rotary seat and is located on the periphery of the steam hole; the steam inner cup sets up the first face at the roating seat, and covers and establish on steam hole and air discharge duct, and the steam inner cup holds the chamber with formation with steam hole cooperation, and the chamber of making an uproar falls in the cooperation of steam inner cup and air discharge duct in order to form, is provided with first exhaust hole on the steam inner cup. Adopt above-mentioned structure, hold the chamber and fall the chamber of making an uproar and adopt the components of a whole that can function independently setting, so can reduce the processing degree of difficulty, be convenient for to holding the chamber and fall the chamber of making an uproar and process manufacturing, and then can reduction in production cost.

Further, be provided with buckle structure between steam inner cup and the roating seat, the steam inner cup passes through buckle structure and can dismantle with the roating seat and be connected. So set up, can guarantee the connection stability of steam inner cup and roating seat, be convenient for maintain and replace steam inner cup and roating seat simultaneously.

Further, buckle structure includes: the clamping hook is arranged on the first surface of the rotating seat and is positioned on one side of the exhaust groove, which is far away from the steam hole; the buckle is arranged on the periphery of the steam inner cover and is connected with the clamping hook in a matching way. So set up, pothook and buckle simple structure are convenient for fix the steam inner cup on the roating seat, and are convenient for process manufacturing to roating seat and steam inner cup.

Further, the steam inner cup includes the body and encloses the connecting portion of establishing in the body periphery, and the body has open end and blind end, and connecting portion are located the open end of body, and the open end of body corresponds the steam hole setting, is provided with first exhaust hole on the connecting portion. The pressure limiting valve is arranged in a containing cavity formed by matching the steam inner cover and the steam hole through the opening end of the body, and the steam is discharged through the first exhaust hole in the connecting part, so that the flowing distance of the steam can be shortened, and the steam can be conveniently discharged.

Further, the pot cover assembly further comprises a steam cover, a second air outlet is formed in the steam cover, the steam cover is located on one side, away from the rotating seat, of the steam inner cover, the second air outlet is communicated with the first air outlet, an inserting structure is arranged between the steam cover and the steam inner cover, and the steam cover is detachably connected with the steam inner cover through the inserting structure. The steam cover and the steam inner cover are detachably connected through the splicing structure, and the steam cover and the steam inner cover are convenient to detach and install.

Furthermore, be provided with spacing fender muscle on the connecting portion, spacing fender muscle is located one side of body, is provided with the spliced eye on the spacing fender muscle, and one side that is close to the steam inner cup of steam lid is provided with grafting portion, and grafting portion cooperates in order to form grafting structure with the spliced eye. So set up, be convenient for install simple structure, the processing of being convenient for simultaneously steam cover.

Further, one side of steam lid that is close to the steam inner cup is provided with the installation cavity, the structure of installation cavity and the structure looks adaptation of body and spacing fender muscle, and body and spacing fender muscle are located the installation cavity. The installation cavity can guarantee that steam is discharged to the external world by the second gas vent after being discharged by first gas vent, avoids steam to produce after getting rid of by first gas vent and leaks and produce the part damage in the pot cover subassembly.

Further, the pot cover assembly further comprises: the seat sealing ring is arranged on the second surface of the rotating seat and is arranged corresponding to the steam hole, the seat sealing ring is provided with a central hole, and the exhaust pipe is arranged in the central hole in a penetrating manner; the retainer plate is fixedly connected with the second surface of the rotary seat, the seat sealing ring is positioned between the retainer plate and the rotary seat, and the seat sealing ring is fixed on the rotary seat through the retainer plate. The seat sealing washer can avoid steam by holding the chamber and outwards leaking, and then can avoid steam circulation to the inside pot cover subassembly that leads to of pot cover subassembly internals to produce and damage.

According to another aspect of the present invention, there is provided a cooking appliance comprising the above-described lid assembly. Adopt the cooking utensil of pot cover subassembly of above-mentioned description, the noise that produces when can reducing the steam and discharge promotes user's use impression.

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 assembly provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a cover body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first surface of a rotary base according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second surface of the rotary seat provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an inner steam cover provided according to an embodiment of the present invention;

fig. 6 shows a schematic structural diagram of a steam cover provided according to an embodiment of the present invention;

fig. 7 shows a schematic structural diagram of a seat seal ring provided according to an embodiment of the present invention;

fig. 8 shows a schematic structural diagram of a fixing ring provided according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a cover body;

20. an exhaust pipe; 21. a first air inlet; 22. a first exhaust port;

30. a pressure limiting valve;

41. an accommodating chamber; 42. a noise reduction cavity; 421. a communicating groove; 43. a first exhaust port; 44. a rotating base; 441. a steam vent; 442. an exhaust groove; 443. a hook; 45. an inner steam cover; 451. buckling; 452. a body; 453. a connecting portion; 4531. limiting and blocking ribs;

50. a steam cover; 51. a second exhaust port; 52. a plug-in part; 53. a mounting cavity;

60. a seat seal ring; 61. a central bore;

70. and a fixing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a pot cover assembly, which includes a cover body 10, an exhaust pipe 20, a pressure limiting valve 30 and a noise reduction structure. The cover 10 is provided with a first through hole, the exhaust pipe 20 has a first air inlet 21 and a first exhaust port 22 which are oppositely arranged, the exhaust pipe 20 is inserted into the first through hole, and the pressure limiting valve 30 is arranged at the first exhaust port 22 of the exhaust pipe 20. The structure of making an uproar falls to have the chamber 41 that holds that communicates each other and fall the chamber 42 of making an uproar, limiting valve 30 sets up and is holding in the chamber 41, fall the first end that the chamber 42 of making an uproar has relative setting and second end, the first end that falls the chamber 42 of making an uproar has intercommunication groove 421, fall the chamber 42 of making an uproar through intercommunication groove 421 and hold chamber 41 intercommunication, the flow area in intercommunication groove 421 is less than the flow area who falls the chamber 42 of making an uproar, fall the structural first exhaust hole 43 that is provided with of making an uproar, first exhaust hole 43 and the second end intercommunication that falls the chamber 42 of making an uproar.

Use the technical scheme of this application, pressure limiting valve 30 sets up in first exhaust port 22 department, and pressure limiting valve 30 sets up in holding chamber 41, falls the chamber 42 of making an uproar and communicates through communicating groove 421 with holding chamber 41 to fall the structural first exhaust hole 43 that sets up of making an uproar and fall the chamber 42 intercommunication of making an uproar. With the arrangement, water vapor discharged from the pressure limiting valve 30 can enter the accommodating cavity 41, enter the noise reduction cavity 42 through the communicating groove 421, and then be discharged to the outside through the first exhaust hole 43. Moreover, the flow area of the communication groove 421 is smaller than the flow area of the noise reduction cavity 42, so that the flow speed of the steam entering the noise reduction cavity 42 from the accommodating cavity 41 is reduced, and the noise generated when the steam is discharged from the first exhaust hole 43 can be reduced.

Where the noise reducing structure may include one or more noise reducing cavities 42, in this embodiment, the noise reducing structure includes a plurality of noise reducing cavities 42. As shown in fig. 3, a plurality of noise reduction chambers 42 are annularly provided in the outer periphery of the housing chamber 41, and the plurality of noise reduction chambers 42 are each communicated with the first exhaust hole 43. With the arrangement, the water vapor can be dispersed into different noise reduction cavities 42 and then discharged through the first exhaust holes 43, so that the noise generated during the discharge of the water vapor can be further reduced. The noise reduction cavity 42 is annularly arranged on the periphery of the accommodating cavity 41, so that the noise reduction cavity 42 is conveniently processed. Alternatively, the noise reducing structure may include three noise reducing cavities 42.

Further, the noise reduction cavity 42 extends in the radial direction of the cap body 10, and the noise reduction cavity 42 is an arc-shaped channel. Adopt above-mentioned structure, the chamber 42 of making an uproar that falls of arc passageway makes the steam circulation more smooth and easy, and the steam of being convenient for discharges to can change the direction of motion of steam, prolong the length that flows of steam, reduce the kinetic energy of steam, thereby can further reduce the noise that produces when the steam discharges. Further, extending the noise reduction cavity 42 in the radial direction of the cap body 10 can reduce the space occupied by the noise reduction cavity 42.

Specifically, the noise reduction cavity 42 extends in the radial direction of the cap body 10, the bottom surface of the noise reduction cavity 42 is inclined from the first end of the noise reduction cavity 42 to the second end, and the bottom surface of the first end of the noise reduction cavity 42 is lower than the bottom surface of the second end of the noise reduction cavity 42. So set up, the chamber 42 of making an uproar of falling that the slope set up can play the guide effect to the vapor after the liquefaction, can hold the chamber 41 with the vapor introduction after the liquefaction in, avoids the vapor after the liquefaction to produce the corruption to roating seat 44, when upset pot cover subassembly, can arrange the vapor after the liquefaction to external.

As shown in fig. 3 to 5, the noise reduction structure includes a rotary base 44 and an inner steam cover 45. The rotary base 44 is fixed on the cover 10, the rotary base 44 has a first surface and a second surface opposite to each other, the rotary base 44 is provided with a steam hole 441 and an exhaust groove 442, the steam hole 441 penetrates through the rotary base 44, and the exhaust groove 442 is disposed on the first surface of the rotary base 44 and is located at the periphery of the steam hole 441. The steam inner cover 45 is arranged on the first surface of the rotary base 44 and covers the steam hole 441 and the exhaust groove 442, the steam inner cover 45 is matched with the steam hole 441 to form the accommodating cavity 41, the steam inner cover 45 is matched with the exhaust groove 442 to form the noise reduction cavity 42, and the first exhaust hole 43 is arranged on the steam inner cover 45. After being discharged into the accommodating cavity 41, the water vapor enters the noise reduction cavity 42 through the exhaust groove 442 for noise reduction, and is discharged through the first exhaust hole 43 on the inner steam cover 45. Adopt above-mentioned structure, hold chamber 41 and fall the chamber 42 of making an uproar and adopt the components of a whole that can function independently setting, so can reduce the processing degree of difficulty, be convenient for to holding chamber 41 and fall the chamber 42 of making an uproar and process manufacturing, and then can reduction in production cost.

Wherein, the cover body 10 comprises an outer shell, an inner lining and a steel cover, the outer shell is sleeved on one side of the inner lining, the steel cover is rotatably arranged on the other side of the inner lining, and the rotating seat 44 is arranged on the inner lining.

Wherein, be provided with buckle structure between steam inner cover 45 and the roating seat 44, steam inner cover 45 passes through buckle structure and is connected with roating seat 44 can dismantle. So set up, can guarantee the connection stability of steam inner cover 45 and roating seat 44, be convenient for simultaneously maintain and replace steam inner cover 45 and roating seat 44.

Specifically, the catch structure includes a catch 443 and a catch 451. The hooks 443 are disposed on the first surface of the rotary base 44 and located on a side of the exhaust slot 442 away from the steam holes 441. The buckle 451 is arranged on the outer periphery of the steam inner cover 45, and the buckle 451 is connected with the hook 443 in a matching way. So set up, pothook 443 and buckle 451 simple structure are convenient for fix inner steam cover 45 on roating seat 44, and are convenient for process manufacturing inner steam cover 45 and roating seat 44. Meanwhile, the hook 443 is located on the side of the exhaust slot 442 away from the steam hole 441, so that interference between the accommodating cavity 41 and the noise reduction cavity 42 when the hook 443 is connected with the buckle 451 is avoided.

Further, the inner steam cover 45 includes a body 452 and a connecting portion 453 surrounding the outer periphery of the body 452, the body 452 has an open end and a closed end, the connecting portion 453 is located at the open end of the body 452, the open end of the body 452 is disposed corresponding to the steam hole 441, and the connecting portion 453 is provided with the first exhaust hole 43. The pressure limiting valve 30 is arranged in the accommodating cavity 41 formed by matching the steam inner cover 45 and the steam hole 441 through the opening end of the body 452, and the steam is discharged from the first exhaust hole 43 on the connecting part 453.

As shown in fig. 6, the pot cover assembly further includes a steam cover 50, a second air outlet 51 is provided on the steam cover 50, the steam cover 50 is located on one side of the steam inner cover 45 away from the rotary seat 44, the second air outlet 51 is communicated with the first air outlet 43, an insertion structure is provided between the steam cover 50 and the steam inner cover 45, and the steam cover 50 is detachably connected with the steam inner cover 45 through the insertion structure. The second exhaust port 51 communicates with the outside, and the water vapor is exhausted from the first exhaust port 43 and then exhausted from the second exhaust port 51 to the outside. Meanwhile, the steam cover 50 and the steam inner cover 45 are detachably connected through a plug-in structure, and the steam cover 50 and the steam inner cover 45 are convenient to detach and install.

Wherein, be provided with spacing fender muscle 4531 on connecting portion 453, spacing fender muscle 4531 is located one side of body 452, is provided with the spliced eye on the spacing fender muscle 4531, and one side that is close to steam inner cup 45 of steam lid 50 is provided with grafting portion 52, and grafting portion 52 cooperates with the spliced eye in order to form the grafting structure. So set up, be convenient for install steam cover 50, simple structure is convenient for process simultaneously. In the present embodiment, the hole formed in the plug hole on the connecting portion 453 except the plug portion 52 forms the first exhaust hole 43.

Further, a mounting cavity 53 is formed in one side, close to the steam inner cover 45, of the steam cover 50, the structure of the mounting cavity 53 is matched with the structures of the body 452 and the limiting blocking rib 4531, and the body 452 and the limiting blocking rib 4531 are located in the mounting cavity 53. The installation cavity 53 can guarantee that the water vapor is discharged to the outside by the second exhaust port 51 after being discharged by the first exhaust port 43, and the water vapor is prevented from being leaked to damage parts in the pot cover assembly after being discharged by the first exhaust port 43. Moreover, the structure can provide positioning, and the steam cover 50 is conveniently covered on the steam inner cover 45.

As shown in fig. 7 and 8, the lid assembly further includes a seat seal ring 60 and a retaining ring 70. The seat seal ring 60 is disposed on the second surface of the rotary seat 44 and disposed corresponding to the steam hole 441, the seat seal ring 60 has a center hole 61, and the exhaust pipe 20 is inserted into the center hole 61. The fixed ring 70 is fixedly connected with the second surface of the rotary base 44, the base seal ring 60 is located between the fixed ring 70 and the rotary base 44, and the base seal ring 60 is fixed on the rotary base 44 through the fixed ring 70. The seat sealing ring 60 can prevent the water vapor from leaking outwards from the accommodating cavity 41, and further prevent the water vapor from circulating to the inside of the pot cover assembly to damage the internal parts of the pot cover assembly. In this embodiment, the second surface of the rotary seat 44 is provided with the connecting column, the fixing ring 70 is provided with the connecting hole, and the connecting hole and the connecting column are matched and connected to fix the seat sealing ring 60 and the fixing ring 70 on the rotary seat 44, so that the structure is simple, and the connection is stable.

The utility model also provides a cooking utensil, this cooking utensil includes the pot cover subassembly of above-mentioned description. Adopt the cooking utensil of pot cover subassembly of above-mentioned description, the noise that produces when can reducing the steam and discharge promotes user's use impression.

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 forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and 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 interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

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 (13)

1. A lid assembly, comprising:

the cover body (10), wherein a first through hole is formed in the cover body (10);

the exhaust pipe (20) is provided with a first air inlet (21) and a first exhaust port (22) which are oppositely arranged, and the exhaust pipe (20) is arranged in the first through hole in a penetrating mode;

a pressure limiting valve (30) provided at the first exhaust port (22) of the exhaust pipe (20);

the structure of making an uproar falls, the structure of making an uproar falls has chamber (41) and the chamber (42) of making an uproar falls that communicate each other, pressure limiting valve (30) set up hold in chamber (41), fall the chamber (42) of making an uproar and have relative first end and the second end that sets up, the first end in the chamber (42) of making an uproar falls has intercommunication groove (421), fall the chamber (42) of making an uproar and pass through intercommunication groove (421) with hold chamber (41) intercommunication, the flow area in intercommunication groove (421) is less than the flow area in the chamber (42) of making an uproar falls, fall the structural first exhaust hole (43) that is provided with of making an uproar, first exhaust hole (43) with the second end intercommunication in the chamber (42) of making an uproar falls.

2. The pot cover assembly according to claim 1, characterized in that the noise reducing structure comprises a plurality of noise reducing cavities (42), the plurality of noise reducing cavities (42) are annularly arranged at the periphery of the accommodating cavity (41), and the plurality of noise reducing cavities (42) are all communicated with the first exhaust holes (43).

3. The pot cover assembly according to claim 1, characterized in that the noise reducing cavity (42) extends in a radial direction of the cover body (10), and the noise reducing cavity (42) is an arc-shaped channel.

4. The pot cover assembly according to claim 1, characterized in that the noise reduction cavity (42) extends in a radial direction of the cover body (10), the bottom surface of the noise reduction cavity (42) is arranged obliquely from the first end of the noise reduction cavity (42) to the second end, and the bottom surface of the first end of the noise reduction cavity (42) is lower than the bottom surface of the second end of the noise reduction cavity (42).

5. The lid assembly of claim 1 or 4, wherein the noise reducing structure comprises:

the rotating base (44) is fixed on the cover body (10), the rotating base (44) is provided with a first surface and a second surface which are oppositely arranged, the rotating base (44) is provided with a steam hole (441) and an exhaust groove (442), the steam hole (441) penetrates through the rotating base (44), and the exhaust groove (442) is arranged on the first surface of the rotating base (44) and is positioned on the periphery of the steam hole (441);

steam inner cover (45), set up the first face of roating seat (44), and cover and establish steam hole (441) with on exhaust groove (442), steam inner cover (45) with steam hole (441) cooperation is in order to form hold chamber (41), steam inner cover (45) with exhaust groove (442) cooperation is in order to form fall and make an uproar chamber (42), be provided with on steam inner cover (45) first exhaust hole (43).

6. The lid assembly of claim 5, wherein a snap structure is provided between the inner steam cover (45) and the rotary seat (44), and the inner steam cover (45) is detachably connected with the rotary seat (44) through the snap structure.

7. The lid assembly of claim 6, wherein the snap structure comprises:

a hook (443) disposed on the first surface of the rotating base (44) and located on a side of the exhaust groove (442) away from the steam hole (441);

the buckle (451) is arranged on the periphery of the steam inner cover (45), and the buckle (451) is matched and connected with the clamping hook (443).

8. The lid assembly of claim 5, wherein the steam inner lid (45) comprises a body (452) and a connecting portion (453) surrounding the outer periphery of the body (452), the body (452) has an open end and a closed end, the connecting portion (453) is located at the open end of the body (452), the open end of the body (452) is disposed corresponding to the steam hole (441), and the first venting hole (43) is disposed on the connecting portion (453).

9. The pot cover assembly according to claim 8, further comprising a steam cover (50), wherein a second air outlet (51) is arranged on the steam cover (50), the steam cover (50) is located on one side of the steam inner cover (45) far away from the rotary seat (44), the second air outlet (51) is communicated with the first air outlet (43), an insertion structure is arranged between the steam cover (50) and the steam inner cover (45), and the steam cover (50) is detachably connected with the steam inner cover (45) through the insertion structure.

10. The pot cover assembly according to claim 9, wherein a limiting rib (4531) is disposed on the connecting portion (453), the limiting rib (4531) is disposed on one side of the body (452), a plug hole is disposed on the limiting rib (4531), a plug portion (52) is disposed on one side of the steam cover (50) close to the steam inner cover (45), and the plug portion (52) cooperates with the plug hole to form the plug structure.

11. The pot cover assembly according to claim 10, characterized in that a side of the steam cover (50) close to the steam inner cover (45) is provided with a mounting cavity (53), the structure of the mounting cavity (53) is matched with the structure of the body (452) and the limiting stop rib (4531), and the body (452) and the limiting stop rib (4531) are positioned in the mounting cavity (53).

12. The lid assembly of claim 5, further comprising:

a seat seal ring (60) arranged on the second surface of the rotating seat (44) and arranged corresponding to the steam hole (441), wherein the seat seal ring (60) is provided with a central hole (61), and the exhaust pipe (20) is arranged in the central hole (61) in a penetrating manner;

the fixed ring (70) is fixedly connected with the second surface of the rotating seat (44), the seat sealing ring (60) is positioned between the fixed ring (70) and the rotating seat (44), and the seat sealing ring (60) is fixed on the rotating seat (44) through the fixed ring (70).

13. A cooking appliance, characterized in that it comprises a lid assembly according to any one of claims 1 to 12.

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