CN210582228U - Exhaust structure of cooking utensil and have its cooking utensil - Google Patents

Abstract

The utility model provides a cooking utensil's exhaust structure and have its cooking utensil, wherein, exhaust structure and cooking utensil's culinary art chamber intercommunication, exhaust structure includes: an exhaust pipe having an exhaust passage; pressure relief structure sets up in the blast pipe, and pressure relief structure is provided with the pressure release passageway independent with exhaust passage, and under the gas pressure of cooking the intracavity was less than under the condition of predetermined pressure, pressure release passageway closed, and gas can be discharged by exhaust passage, and under the condition of gas pressure more than or equal to predetermined pressure, pressure release passageway opened, and gas can be discharged by pressure release passageway. Use the technical scheme of the utility model the problem of the easy gas leakage of cooking utensil among the prior art can be solved effectively.

Description

Exhaust structure of cooking utensil and have its cooking utensil

Technical Field

The utility model relates to a small household electrical appliances field particularly, relates to a cooking utensil's exhaust structure and have its cooking utensil.

Background

The electric pressure cooker in the market generally comprises a cooker body and a cooker cover, wherein an exhaust pipe communicated with a cooking cavity in the cooker body is arranged on the cooker cover, and a pressure limiting valve is arranged on the exhaust pipe. Meanwhile, in order to ensure the pressure safety, a safety valve component is also arranged at other positions on the pot cover generally. In above-mentioned structure, need set up two hole sites on the pot cover in order to install blast pipe and relief valve subassembly, need guarantee that blast pipe and relief valve subassembly are whole to be assembled the position, could guarantee that the gas in the cooking chamber does not leak in above-mentioned two hole sites.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a cooking utensil's exhaust structure and have its cooking utensil to solve the problem of the easy gas leakage of cooking utensil among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided an exhaust structure of a cooking appliance, communicating with a cooking cavity of the cooking appliance, the exhaust structure including: an exhaust pipe having an exhaust passage; pressure relief structure sets up in the blast pipe, and pressure relief structure is provided with the pressure release passageway independent with exhaust passage, and under the gas pressure of cooking the intracavity was less than under the condition of predetermined pressure, pressure release passageway closed, and gas can be discharged by exhaust passage, and under the condition of gas pressure more than or equal to predetermined pressure, pressure release passageway opened, and gas can be discharged by pressure release passageway.

Further, the pressure relief structure includes: the seat body comprises a seat body, the seat body is provided with an accommodating space and an opening communicated with the accommodating space, at least part of the opening forms a channel port of the pressure relief channel, and the seat body is provided with an overflowing channel communicated with the accommodating space; the valve cap, but floatably set up in accommodation space, and the valve cap includes sealing position and pressure release position, and under the condition that the valve cap is located sealing position, valve cap shutoff opening, pressure release channel closed, and under the condition that the valve cap is located pressure release position, the opening is opened to the valve cap, and the gas that gets into in the accommodation space through overflowing the passageway can be discharged by the opening part, and pressure release channel opens. The structure is simple and easy to realize.

Further, the valve cap can float up from the sealing position to the pressure relief position under the pushing of the gas under the condition that the gas pressure is greater than or equal to the preset pressure. The structure does not need to be provided with a driving device, so that the production cost can be reduced.

Further, the exhaust structure further includes: and the elastic reset structure is in abutting fit with the valve cap so that the valve cap can be kept in a sealing position under the condition that the gas pressure is less than the preset pressure. The valve cap is simple in structure, the valve cap is kept at the sealing position through the elastic restoring force of the elastic reset structure, other driving structures are not needed to be arranged, and therefore production cost is reduced.

Furthermore, the blast pipe is worn to locate in the accommodation space, and the spring that the elasticity reset structure was located on the blast pipe for the cover and was located the accommodation space is provided with limit structure on the blast pipe, and the one end butt of spring is in limit structure, and the other end butt of spring is in the valve cap. Above-mentioned structure can reduce exhaust structure's volume, does benefit to miniaturized design on the one hand, and on the other hand can reduction in production cost.

Further, the valve cap includes the barrel portion that has the bobbin base and sets up in the upper portion of barrel portion and the crimping portion of outside extension, and the blast pipe is worn to locate the bottom of barrel base and the diapire of pedestal body, and under the condition that the valve cap is located sealed position, crimping portion crimping is in the top of pedestal in order to shutoff opening, and the bottom of barrel base and the bottom butt of pedestal body. The above structure ensures that gas is not discharged to the outside in the case where the bonnet is located at the sealing position.

Further, the crimping part is an annular convex edge, and a first sealing structure is arranged between the annular convex edge and the upper surface of the base body. Above-mentioned structure can avoid gaseous by the protruding edge of annular and the upper surface of pedestal between the gap arrange to external world to guarantee cooking utensil can normally push up.

Further, the pedestal body includes diapire and lateral wall, and the upper portion border of lateral wall encloses into the opening, and the junction interval of diapire and lateral wall is provided with a plurality of discharge orifices, and the inside passageway of discharge orifice forms and overflows the passageway. The structure is simple and easy to process.

Furthermore, the lower end of the exhaust pipe penetrates out of the first mounting hole in the bottom wall, the lower end of the exhaust pipe is matched with the anti-blocking nut so that the exhaust pipe is fixed on the base body, and a second sealing structure is arranged among the base body, the anti-blocking nut and the exhaust pipe and used for sealing a gap between the exhaust pipe and the first mounting hole. The structure is simple, the assembly is convenient, and the assembly efficiency is high.

Further, the pressure relief structure includes: the valve comprises a seat body and a valve cap, wherein the seat body comprises a seat body, the seat body is provided with an accommodating space and an opening communicated with the accommodating space, at least part of the opening forms a channel opening of a pressure relief channel, and the seat body is provided with a flow passage communicated with the accommodating space; the valve cap can float and set up in accommodation space, the valve cap includes sealing position and pressure release position, be located under the condition of sealing position at the valve cap, valve cap shutoff opening, the pressure release passageway is closed, be located under the condition of pressure release position at the valve cap, the opening is opened to the valve cap, gas through overflowing the passageway and getting into in the accommodation space can be discharged by the opening part, the pressure release passageway opens, under the condition of gas pressure more than or equal to predetermined pressure, the valve cap can be by sealing position come-up to pressure release position under gaseous ejection, exhaust structure still includes: the elastic reset structure is matched with the valve cap in an abutting mode, so that under the condition that gas pressure is smaller than preset pressure, the valve cap can be kept at a sealing position, the exhaust pipe penetrates through the containing space, the elastic reset structure is a spring which is sleeved on the exhaust pipe and located in the containing space, a limiting structure is arranged on the exhaust pipe, one end of the spring abuts against the limiting structure, the other end of the spring abuts against the valve cap, the valve cap comprises a barrel body part with a barrel bottom and a pressing part which is arranged on the upper portion of the barrel body part and extends outwards, the exhaust pipe penetrates through the barrel bottom and the bottom wall of the seat body, the pressing part is pressed on the top of the seat body to seal the opening under the condition that the valve cap is located at the sealing position, the barrel bottom abuts against the bottom of the seat body, the pressing part is an annular convex edge, a first sealing structure is arranged between the annular, the upper portion border of lateral wall encloses into the opening, and the junction interval of diapire and lateral wall is provided with a plurality of discharge orifices, and the inside passageway of discharge orifice forms and overflows the passageway, and the lower extreme of blast pipe is worn out by the first mounting hole on the diapire, and the lower extreme of blast pipe and prevent stifled nut cooperation so that the blast pipe is fixed in the pedestal, are provided with second seal structure between pedestal, the nut of preventing blocking up and the blast pipe, and second seal structure is used for sealing the clearance between blast pipe and the first mounting hole.

According to another aspect of the present invention, there is provided a cooking appliance, including: an appliance body having a cooking cavity; the exhaust structure is arranged on the appliance body through the pressure relief structure, and an exhaust pipe of the exhaust structure is communicated with the cooking cavity. Because the exhaust structure has two functions of exhaust and safety valve, the cooking utensil with the two functions only needs to be provided with one mounting hole to mount the exhaust structure. The structure reduces the mounting holes of the air leakage points, and the phenomenon that the cooking utensil leaks air can be avoided only by ensuring that the exhaust structure is mounted in place during mounting.

Further, be provided with the second mounting hole on the utensil body, the second mounting hole is worn to locate by pressure release structure, and pressure release structure includes mounting structure, and pressure release structure is fixed in the utensil body through nut and mounting structure, and nut and mounting structure are located the both sides of utensil body. The structure is simple, and the assembly is convenient.

Further, cooking utensil is electric pressure cooker, and cooking utensil still includes: and the pressure limiting valve is matched with the exhaust pipe to limit the pressure in the cooking cavity.

Use the technical scheme of the utility model, exhaust structure includes blast pipe and pressure relief structure, therefore exhaust structure can enough play normal carminative effect, can be again at the safe pressure release under the too high condition of culinary art intracavity internal pressure. The structure enables the exhaust structure to have two functions, so that the cooking utensil with the two functions is required to be provided with only one mounting hole for mounting the exhaust structure. The structure reduces the air leakage points (mounting holes), and the phenomenon of air leakage of the cooking utensil can be avoided only by ensuring that the exhaust structure is mounted in place during mounting.

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 perspective view of an embodiment of an exhaust structure according to the present invention;

fig. 2 shows an exploded schematic view of a partial structure of an embodiment of a cooking appliance according to the present invention;

FIG. 3 shows a schematic top view of the cooking appliance of FIG. 2;

FIG. 4 shows a schematic cross-sectional view of the cooking appliance of FIG. 3 in the direction A-A;

fig. 5 shows an enlarged schematic structural view at B of the cooking appliance of fig. 4; and

fig. 6 is a partial enlarged schematic view of the bonnet of the cooking appliance of fig. 4 in a pressure relief position.

Wherein the figures include the following reference numerals:

1. an exhaust passage; 10. a base body; 11. a seat body; 111. an opening; 112. an overflow channel; 113. a bottom wall; 114. a side wall; 115. a first mounting hole; 13. a mounting structure; 20. an exhaust pipe; 21. a limiting structure; 30. a bonnet; 31. a barrel portion; 311. a cylinder bottom; 32. a crimping part; 40. an elastic reset structure; 50. a first seal structure; 60. an anti-blocking nut; 70. a second seal structure; 80. an appliance body; 81. a second mounting hole; 90. a nut; 110. a pressure relief structure; 120. and (4) an exhaust structure.

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.

As shown in fig. 1 to 6, the exhaust structure of the cooking appliance of the present embodiment communicates with the cooking cavity of the cooking appliance, and includes: an exhaust pipe 20 and a pressure relief structure 110. The exhaust pipe 20 has an exhaust passage 1. Pressure relief structure 110 sets up in blast pipe 20, and pressure relief structure 110 is provided with the pressure relief passageway independent with exhaust passage 1, and under the condition that the gas pressure in the culinary art intracavity is less than predetermined pressure, pressure relief passageway closes, and gas can be discharged by exhaust passage 1, and under the condition of gas pressure more than or equal to predetermined pressure, pressure relief passageway opens, and gas can be discharged by pressure relief passageway.

By adopting the technical scheme of the embodiment, the exhaust structure comprises the exhaust pipe 20 and the pressure relief structure 110, so that the exhaust structure can play a role in normal exhaust and can safely relieve pressure under the condition of overhigh pressure in the cooking cavity. The structure enables the exhaust structure to have two functions, so that the cooking utensil with the two functions is required to be provided with only one mounting hole for mounting the exhaust structure. The structure reduces the air leakage points (mounting holes), and the phenomenon of air leakage of the cooking utensil can be avoided only by ensuring that the exhaust structure is mounted in place during mounting.

As shown in fig. 1 to 6, in the present embodiment, the pressure relief structure 110 includes: a seat body 10 and a bonnet 30. The seat body 10 includes a seat body 11, the seat body 11 has an accommodating space and an opening 111 communicating with the accommodating space, at least a part of the opening 111 forms a passage opening of the pressure relief passage, and the seat body 11 is provided with an overflow passage 112 communicating with the accommodating space. The bonnet 30 is floatably disposed in the receiving space, the bonnet 30 includes a sealing position and a pressure relief position, when the bonnet 30 is located in the sealing position, the bonnet 30 blocks the opening 111, the pressure relief passage is closed, when the bonnet 30 is located in the pressure relief position, the bonnet 30 opens the opening 111, the gas entering the receiving space through the flow passage 112 can be discharged from the opening 111, and the pressure relief passage is opened. The structure is simple and easy to realize. Of course, the pressure releasing structure is not limited to the above structure, and in other embodiments not shown in the drawings, the pressure releasing structure may further include a seat body having a pressure releasing channel, and a blocking device capable of blocking the pressure releasing channel, the blocking device may be rotatably disposed on the seat body, and when the gas pressure is greater than or equal to the predetermined pressure, the blocking device may be rotated to a position far away from the blocking device. When the gas pressure is lower than the preset pressure, the blocking device can rotate to the position for blocking the pressure relief channel.

As shown in fig. 6, in the present embodiment, the bonnet 30 can be floated from the sealing position to the relief position by the pushing of the gas in the case where the gas pressure is equal to or higher than the predetermined pressure. The above structure is simple, and the upward floating of the bonnet 30 is achieved by the gas pressure. The structure does not need to be provided with a driving device, so that the production cost can be reduced. Of course, in other embodiments not shown in the figures, the bonnet 30 may also be floated upwardly by other drive structures.

As shown in fig. 4 to 6, in the present embodiment, the gas discharge structure further includes an elastic restoring structure 40, and the elastic restoring structure 40 is in abutting engagement with the valve cap 30, so that the valve cap 30 can be maintained in the sealing position in the case that the gas pressure is less than the predetermined pressure. The above structure is simple, the bonnet 30 is maintained at the sealing position by the elastic restoring force of the elastic restoring structure 40, and other driving structures are not required, thereby reducing the production cost. Of course, in other embodiments not shown in the figures, the bonnet 30 may also be abutted down against the seat by other driving structures.

As shown in fig. 4 to fig. 6, in the present embodiment, the exhaust pipe 20 is inserted into the accommodating space, the elastic restoring structure 40 is a spring sleeved on the exhaust pipe 20 and located in the accommodating space, the exhaust pipe 20 is provided with a limiting structure 21, one end of the spring abuts against the limiting structure 21, and the other end of the spring abuts against the valve cap 30. Above-mentioned structure can reduce exhaust structure's volume, does benefit to miniaturized design on the one hand, and on the other hand can reduction in production cost.

As shown in fig. 4 to 6, in the present embodiment, the bonnet 30 includes a cylindrical body 31 having a cylindrical bottom 311 and a press-contact portion 32 disposed at an upper portion of the cylindrical body 31 and extending outward, and the exhaust pipe 20 is disposed through the cylindrical bottom 311 and the bottom wall 113 of the housing body 11. It should be noted that the gas entering the accommodating space is exhausted to the outside atmosphere in two ways, the first way is: is discharged to the outside atmosphere through the opening 111; and the second method comprises the following steps: enters the exhaust pipe through hole on the cylinder bottom 311 from the gap between the cylinder bottom 311 and the housing body 11, and finally enters the cylinder part 31 and is discharged from the upper opening of the cylinder part 31. In order to prevent gas leakage and ensure normal pressing of the cooking utensil, as shown in fig. 5, when the bonnet 30 is located at the sealing position, the pressing portion 32 is pressed against the top of the housing 10 to close the opening 111, and the bottom 311 abuts against the bottom of the housing body 11. The above structure ensures that gas is not discharged to the outside with the bonnet 30 in the sealing position.

As shown in fig. 4 to 6, in the present embodiment, the press-connecting portion 32 is an annular convex edge, and a first sealing structure 50 is disposed between the annular convex edge and the upper surface of the housing 10. Above-mentioned structure can avoid gaseous gap row to the external world between the upper surface of protruding edge of annular and pedestal 10 to guarantee cooking utensil can normally push up.

As shown in fig. 1 and fig. 4 to fig. 6, in the present embodiment, the housing body 11 includes a bottom wall 113 and a side wall 114, an opening 111 is defined by an upper edge of the side wall 114, a plurality of flow holes are arranged at intervals at a connection position of the bottom wall 113 and the side wall 114, and a flow passage 112 is formed by a passage inside the flow holes. Above-mentioned structure can guarantee the air input, in addition, if one of them overflows the orifice by the food shutoff, in gas can get into the pressure release passageway through other overflow holes to guarantee that exhaust structure can normally relieve pressure.

As shown in fig. 4 to 6, in the present embodiment, the lower end of the exhaust pipe 20 penetrates through the first mounting hole 115 on the bottom wall 113, the lower end of the exhaust pipe 20 is matched with the anti-blocking nut 60 to fix the exhaust pipe 20 to the housing 10, and a second sealing structure 70 is disposed between the housing 10, the anti-blocking nut 60 and the exhaust pipe 20, and the second sealing structure 70 is used to seal the gap between the exhaust pipe 20 and the first mounting hole 115. The structure is simple, the assembly is convenient, and the assembly efficiency is high. Further, the second seal structure 70 can seal the gap between the exhaust pipe 20 and the first mounting hole 115 to prevent gas from entering the cylindrical body 31 through the first mounting hole 115, the exhaust pipe penetration hole and finally being discharged from the upper opening of the cylindrical body 31.

It should be noted that, by applying the technical solution of this embodiment, the exhaust structure integrates the exhaust pipe and the pressure relief structure, and parts of the exhaust structure are fewer than parts of two separate bodies in the prior art, so that the installation procedures are reduced, and the assembly cost and the material cost are reduced.

As shown in fig. 1 to 6, in the present embodiment, the pressure relief structure 110 includes: the valve cap comprises a seat body 10 and a valve cap 30, wherein the seat body 10 comprises a seat body 11, the seat body 11 is provided with an accommodating space and an opening 111 communicated with the accommodating space, at least part of the opening 111 forms a passage opening of a pressure relief passage, and the seat body 11 is provided with an overflowing passage 112 communicated with the accommodating space; valve bonnet 30 can floatably set up in the accommodation space, valve bonnet 30 includes sealed position and pressure release position, be located the condition of sealed position at valve bonnet 30, valve bonnet 30 blocks up opening 111, the pressure release passageway is closed, be located the condition of pressure release position at valve bonnet 30, valve bonnet 30 opens opening 111, the gas that gets into in the accommodation space through overflow passageway 112 can be discharged by opening 111 department, the pressure release passageway is opened, under the condition of gas pressure more than or equal to predetermined pressure, valve bonnet 30 can be by sealed position come-up to the pressure release position under gaseous ejection, exhaust structure still includes: the elastic restoring structure 40 is in abutting fit with the valve cap 30, so that under the condition that the gas pressure is smaller than the predetermined pressure, the valve cap 30 can be kept at the sealing position, the exhaust pipe 20 is inserted into the accommodating space, the elastic restoring structure 40 is a spring which is sleeved on the exhaust pipe 20 and is positioned in the accommodating space, the exhaust pipe 20 is provided with a limiting structure 21, one end of the spring abuts against the limiting structure 21, the other end of the spring abuts against the valve cap 30, the valve cap 30 comprises a barrel body part 31 with a barrel bottom 311 and a crimping part 32 which is arranged at the upper part of the barrel body part 31 and extends outwards, the exhaust pipe 20 is inserted into the barrel bottom 311 and the bottom wall 113 of the seat body 11, when the valve cap 30 is positioned at the sealing position, the crimping part 32 is crimped on the top of the seat body 10 to close the opening 111, the barrel bottom 311 abuts against the bottom of the seat body 11, the crimping part 32 is an annular convex edge, and a first sealing, the seat body 11 includes a bottom wall 113 and a side wall 114, an opening 111 is defined by an upper edge of the side wall 114, a plurality of overflowing holes are arranged at a joint of the bottom wall 113 and the side wall 114 at intervals, an overflowing channel 112 is formed by a channel inside the overflowing holes, a lower end of the exhaust pipe 20 penetrates through a first mounting hole 115 on the bottom wall 113, the lower end of the exhaust pipe 20 is matched with the anti-blocking nut 60 to fix the exhaust pipe 20 to the seat body 10, a second sealing structure 70 is arranged between the seat body 10, the anti-blocking nut 60 and the exhaust pipe 20, and the second sealing structure 70 is used for sealing a gap between the exhaust pipe 20 and the first mounting.

As shown in fig. 2 to 6, the present application also provides a cooking appliance, the cooking appliance according to the present application including: an appliance body 80 and an exhaust structure 120. Wherein the appliance body 80 has a cooking cavity. The exhaust structure 120 is the above-mentioned exhaust structure, the exhaust structure 120 is disposed on the appliance body 80 through the pressure relief structure 110, and the exhaust pipe 20 of the exhaust structure 120 is communicated with the cooking cavity. Because the exhaust structure has two functions of exhaust and safety valve, the cooking utensil with the two functions only needs to be provided with one mounting hole to mount the exhaust structure. The structure reduces the mounting holes of the air leakage points, and the phenomenon that the cooking utensil leaks air can be avoided only by ensuring that the exhaust structure is mounted in place during mounting.

As shown in fig. 2 to 6, in the present embodiment, the appliance body 80 is provided with a second mounting hole 81, the pressure relief structure 110 is disposed through the second mounting hole 81, the pressure relief structure 110 includes a mounting structure 13, the pressure relief structure 110 is fixed to the appliance body 80 through a nut 90 and the mounting structure 13, and the nut 90 and the mounting structure 13 are located on two sides of the appliance body 80. The structure is simple, and the assembly is convenient. Preferably, in the present application, the mounting structure 13 is disposed on the seat body 11 and is an integrally formed structure with the seat body 11. The structure is simple, the assembling steps are reduced, and the assembling efficiency is improved.

In this embodiment, the cooking appliance is an electric pressure cooker, and the cooking appliance further includes a pressure limiting valve, which cooperates with the exhaust pipe 20 to limit the pressure in the cooking cavity.

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. An exhaust structure of a cooking appliance, in communication with a cooking cavity of the cooking appliance, the exhaust structure comprising:

an exhaust pipe (20) having an exhaust passage (1);

pressure relief structure (110), set up in blast pipe (20), pressure relief structure (110) be provided with exhaust passage (1) independent pressure relief passageway under the gas pressure of culinary art intracavity is less than predetermined pressure's the condition, pressure relief passageway closes, gas can by exhaust passage (1) is discharged gas pressure more than or equal to under the condition of predetermined pressure, pressure relief passageway opens, gas can by pressure relief passageway discharges.

2. The exhaust structure according to claim 1, wherein the pressure relief structure (110) comprises:

the seat body (10) comprises a seat body (11), the seat body (11) is provided with an accommodating space and an opening (111) communicated with the accommodating space, at least part of the opening (111) forms a channel port of the pressure relief channel, and the seat body (11) is provided with an overflowing channel (112) communicated with the accommodating space;

valve cap (30), floatably set up in the accommodation space, valve cap (30) are including sealed position and pressure release position valve cap (30) are located under the condition of sealed position, valve cap (30) shutoff opening (111), the pressure release passageway is closed valve cap (30) are located under the condition of pressure release position, valve cap (30) are opened opening (111), pass through overflow passageway (112) get into in the accommodation space gas can by opening (111) department is discharged, the pressure release passageway is opened.

3. The exhaust structure according to claim 2, wherein the bonnet (30) is capable of floating from the sealing position to the pressure relief position under the urging of the gas in a case where the gas pressure is equal to or greater than the predetermined pressure.

4. The exhaust structure according to claim 2, characterized in that the exhaust structure further comprises:

a resilient return structure (40) in abutting engagement with the bonnet (30) to enable the bonnet (30) to remain in the sealing position in the event the gas pressure is less than the predetermined pressure.

5. The exhaust structure according to claim 4, wherein the exhaust pipe (20) is inserted into the accommodating space, the elastic return structure (40) is a spring sleeved on the exhaust pipe (20) and located in the accommodating space, a limiting structure (21) is disposed on the exhaust pipe (20), one end of the spring abuts against the limiting structure (21), and the other end of the spring abuts against the valve cap (30).

6. The exhaust structure according to any one of claims 2 to 5, wherein the bonnet (30) includes a cylindrical body portion (31) having a cylindrical bottom (311), and a crimping portion (32) provided at an upper portion of the cylindrical body portion (31) and extending outward, the exhaust pipe (20) is inserted through the cylindrical bottom (311) and a bottom wall (113) of the housing body (11), the crimping portion (32) is crimped to a top of the housing (10) to close the opening (111), and the cylindrical bottom (311) abuts against a bottom of the housing body (11).

7. The venting structure of claim 6, wherein the crimping portion (32) is an annular ledge, and a first sealing structure (50) is disposed between the annular ledge and an upper surface of the housing (10).

8. The exhaust structure according to claim 2, characterized in that the holder body (11) comprises a bottom wall (113) and a side wall (114), the upper edge of the side wall (114) encloses the opening (111), a plurality of overflowing holes are arranged at intervals at the connection of the bottom wall (113) and the side wall (114), and the passages inside the overflowing holes form the overflowing passage (112).

9. The exhaust structure according to claim 8, wherein the lower end of the exhaust pipe (20) protrudes through a first mounting hole (115) on the bottom wall (113), the lower end of the exhaust pipe (20) is matched with an anti-blocking nut (60) to fix the exhaust pipe (20) to the seat body (10), a second sealing structure (70) is arranged between the seat body (10), the anti-blocking nut (60) and the exhaust pipe (20), and the second sealing structure (70) is used for sealing a gap between the exhaust pipe (20) and the first mounting hole (115).

10. The exhaust structure according to claim 1, wherein the pressure relief structure (110) comprises: the valve seat comprises a seat body (10) and a valve cap (30), wherein the seat body (10) comprises a seat body (11), the seat body (11) is provided with an accommodating space and an opening (111) communicated with the accommodating space, at least part of the opening (111) forms a passage opening of the pressure relief passage, and the seat body (11) is provided with a flow passage (112) communicated with the accommodating space; a bonnet (30) floatably disposed in the receiving space, the bonnet (30) including a sealing position and a pressure relief position, in a case where the bonnet (30) is located in the sealing position, the bonnet (30) blocks the opening (111), the pressure relief passage is closed, in a case where the bonnet (30) is located in the pressure relief position, the bonnet (30) opens the opening (111), through the flow passage (112) enters the receiving space the gas can be discharged from the opening (111), the pressure relief passage is open, in a case where the gas pressure is equal to or greater than the predetermined pressure, the bonnet (30) can be pushed by the gas to float upward from the sealing position to the pressure relief position, the exhaust structure further includes: an elastic reset structure (40) abutting against the bonnet (30) to cooperate with the bonnet (30) so that the bonnet (30) can be kept at the sealing position when the gas pressure is smaller than the predetermined pressure, the exhaust pipe (20) is arranged in the accommodating space in a penetrating manner, the elastic reset structure (40) is a spring sleeved on the exhaust pipe (20) and arranged in the accommodating space, a limit structure (21) is arranged on the exhaust pipe (20), one end of the spring abuts against the limit structure (21), the other end of the spring abuts against the bonnet (30), the bonnet (30) comprises a barrel body part (31) with a barrel bottom (311) and a crimping part (32) arranged on the upper part of the barrel body part (31) and extending outwards, the exhaust pipe (20) penetrates through the barrel bottom (311) and the bottom wall (113) of the seat body (11), the crimping portion (32) is crimped at the top of the seat body (10) to seal the opening (111), the bottom (311) of the barrel is abutted against the bottom of the seat body (11), the crimping portion (32) is an annular convex edge, a first sealing structure (50) is arranged between the annular convex edge and the upper surface of the seat body (10), the seat body (11) comprises a bottom wall (113) and a side wall (114), the upper edge of the side wall (114) surrounds the opening (111), a plurality of overflowing holes are formed in the joint of the bottom wall (113) and the side wall (114) at intervals, the passage inside the overflowing holes forms the overflowing passage (112), the lower end of the exhaust pipe (20) penetrates out from a first mounting hole (115) in the bottom wall (113), and the lower end of the exhaust pipe (20) is matched with a nut (60) to fix the exhaust pipe (20) on the seat body (10), a second sealing structure (70) is arranged among the base body (10), the anti-blocking nut (60) and the exhaust pipe (20), and the second sealing structure (70) is used for sealing a gap between the exhaust pipe (20) and the first mounting hole (115).

11. A cooking appliance comprising:

an appliance body (80) having a cooking cavity;

the exhaust structure (120), wherein the exhaust structure (120) is the exhaust structure according to any one of claims 1 to 10, the exhaust structure (120) is disposed on the appliance body (80) through the pressure relief structure (110), and the exhaust pipe (20) of the exhaust structure (120) is communicated with the cooking cavity.

12. The cooking appliance according to claim 11, wherein a second mounting hole (81) is formed in the appliance body (80), the pressure relief structure (110) is arranged in the second mounting hole (81) in a penetrating manner, the pressure relief structure (110) comprises a mounting structure (13), the pressure relief structure (110) is fixed to the appliance body (80) through a nut (90) and the mounting structure (13), and the nut (90) and the mounting structure (13) are located on two sides of the appliance body (80).

13. The cooking appliance of claim 11, wherein the cooking appliance is an electric pressure cooker, the cooking appliance further comprising:

a pressure limiting valve cooperating with said exhaust duct (20) to limit the pressure inside said cooking chamber.

Images