CN108720618B - Sealing ring and cooking utensil - Google Patents

Abstract

The invention provides a sealing ring and a cooking utensil. The seal ring includes: the connecting part, the supporting part, the compression part and the sealing part that connect in proper order, wherein, connecting part connects on the lid, along outside-in direction, supporting part upward tilts, and along outside-in direction, the compression part gradually downward sloping, the junction of supporting part and compression part forms the cavity of opening inwards, when closing the lid, sealing part moves to the direction that is close to the open end of cavity, and closes the open end of sealing part sealed cavity under the lid state, compression part laminating mutually with interior pot. According to the sealing ring provided by the invention, the compression part is attached to the inner pot in the closing state, and the opening end of the sealing cavity of the sealing part forms the sealing cavity.

Description

Sealing ring and cooking utensil

Technical Field

The present invention relates to the field of kitchen appliances, and more particularly, to a sealing ring and a cooking appliance including the same.

Background

In the existing cooking appliances such as electric rice cooker, the cover body 1' is sealed with the inner pot 2' through the sealing ring 3', and the matching part of the sealing ring 3' and the inner pot 2' is generally V-shaped or U-shaped. The structure of this seal ring 3' in the non-closed state of the cover 1' is shown in fig. 1, and the structure in the closed state of the cover 1' is shown in fig. 2.

After a certain time of cooking or heat preservation, because of the large temperature difference between the temperature in the pot and the temperature outside the pot, the temperature outside the sealing ring is relatively low due to the fact that the sealing ring is relatively far away from the heat preservation heating device and is relatively weak, and the sealing ring is easily influenced by air with relatively low temperature outside, and when water vapor in the pot meets the sealing ring with relatively low temperature, water drops are formed when the water vapor meets condensation. When the cover body is opened, more water flows to the outer shell cover and the cover body of the electric cooker, and bad experience is formed for a user. The condensed water not only causes trouble to users, but also can drop on rice during heat preservation, so that the phenomenon of white drop is caused, and the rice is easy to deteriorate.

In order to solve the problems, some electric rice cookers are provided with water receiving boxes, and the measure is that although water is prevented from flowing to the outer cover of the electric rice cooker, condensed water is generated by the electric rice cooker, and only the condensed water is connected into the water receiving boxes, so that the cost of the water receiving boxes is increased, the problem that water drops are formed when the condensed water meets condensation is not fundamentally solved, and the phenomenon of white drop cannot be solved.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

To this end, an aspect of the present invention aims to provide a seal ring.

Another aspect of the present invention is directed to a cooking appliance including the above sealing ring.

To achieve the above object, an embodiment of one aspect of the present invention provides a sealing ring for a cooking appliance including a pot body and a cover body provided to the pot body, the pot body and the cover body being hinged, the pot body including an inner pot, the sealing ring comprising: the connecting part, the supporting part, the compression part and the sealing part that connect in proper order, wherein, connecting part is connected on the lid, along outside-in direction, supporting part upward tilts, and along outside-in direction, the compression part gradually downward sloping, supporting part with the junction of compression part forms the cavity of opening inwards, when closing the lid, the sealing part is to being close to the direction of the open end of cavity, and closes under the lid state sealing part is sealed the open end of cavity, the compression part with interior pot laminating mutually.

The sealing ring provided by the embodiment of the invention is used for sealing the inner pot and the cover body of the cooking utensil. The sealing ring comprises a connecting part, a supporting part, a compressing part and a sealing part which are sequentially connected from top to bottom, wherein the connecting part is connected to the cover body, the supporting part is inclined upwards along the direction from outside to inside, preferably, the supporting part is inclined upwards gradually, and the compressing part is inclined downwards along the direction from outside to inside gradually, so that a cavity with an inward opening, a V-shaped or U-shaped section or other shapes is formed at the connecting part of the supporting part and the compressing part, the lower end of the compressing part is connected with the sealing part, the compressing part is contacted with the inner pot when the cover is closed, and is extruded with the opening part of the inner pot, the sealing part moves towards the opening end close to the cavity in the extrusion process of the compressing part and the inner pot, and the opening end of the cavity is sealed in the cover closing state, so that the cavity forms a sealed cavity isolated from the outside. When cooking or heat preservation is carried out, on one hand, air in the sealed cavity does not flow, thereby the sealed cavity isolates the high-temperature and high-humidity environment in the inner pot, the external low-temperature environment is isolated, the medium-high-temperature environment is formed in the sealed cavity, the heat conduction between the low-temperature environment at the outer side of the inner pot and the high-temperature environment in the inner pot is reduced, the heat preservation effect is improved, the temperature difference between the high-temperature and high-humidity environment in the inner pot and the sealed cavity is reduced compared with the condition that the cavity is not closed in the prior art, the formation amount of condensation water drops and the water drop size of formed condensation water are reduced, on the other hand, the contact area between the sealing ring and the high-temperature and high-humidity environment in the inner pot is also reduced after the sealed cavity is formed, the formation amount of the condensation water is further reduced, and the problem that the condensation water flows onto the outer shell cover plate is solved.

Under the lid closed condition, the compression portion laminating is in the opening part of pot in, and in the related art, the horizontal part that the level set up is connected to the lower extreme of compression portion, connects the sealing part again on the horizontal part, and after the lid closed, the horizontal part laminates with the opening part of interior pot mutually, and the sealing part seals the cavity that compression portion and supporting part formed. The compression amount of the sealing ring from the uncapping state to the closing state is increased in the application, and the compression part is attached to the opening of the inner pot, so that the compression part can be directly connected with the sealing part, the horizontal part is not required, the structure of the sealing ring is simplified, and the cost of the sealing ring is reduced.

The cooker body is hinged with the cover body, or is screwed and buckled, or is placed on the cooker body and connected with the cooker body.

In addition, the sealing ring provided by the embodiment of the invention has the following additional technical characteristics:

in the above technical solution, preferably, the compression amount of the sealing ring is 2 mm-10 mm from the open cover state to the closed cover state.

When the cover body is closed, the sealing ring is contacted with the inner pot and has extrusion action with the inner pot, and under the action of the inner pot, the sealing ring is compressed, so that the sealing part moves towards the direction close to the opening end of the cavity and seals the opening end of the cavity. The compression amount of the sealing ring is 2-10 mm from the cover opening state to the cover closing state, so that a certain interference amount is ensured after the sealing ring forms a sealing cavity in the cover closing state, and the too large cover closing force caused by the too large compression amount of the sealing ring is avoided. Preferably, the compression amount of the seal ring is 3mm to 5mm. The compression amount of the seal ring may be 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.

In the above technical solution, preferably, the sealing portion is at least partially attached to the inner pot in the closed state.

In the closed state, except that the compression part is attached to the inner pot, at least part of the sealing part is attached to the inner pot, so that the contact area between the sealing ring and the high-temperature and high-humidity environment on the inner pot side is further reduced, and the formation amount of condensed water is further reduced. Preferably, the part of the sealing part close to the compression part is attached to the inner pot.

In the above technical solution, preferably, the connection portion or a connection portion between the connection portion and the support portion extends in a direction approaching to the axis of the cover body to form an extension portion, and the extension portion is attached to the lower surface of the cover body; the sealing part is abutted with the extending part in the closing state.

The inner surface of the lower end of the connecting part or the inner surface of the connecting part at the connecting part and the supporting part extends inwards to form an extending part, and the extending part can further improve the sealing effect on the cover body, and preferably, the extending part inclines downwards along the direction from outside to inside. In the closed state, the sealing part is abutted against the extending part to form a sealing cavity.

In the above technical solution, preferably, a distance between a contact point of the sealing portion and the extending portion and a free end of the extending portion is 0mm to 3mm.

In the closed state, the smaller and better the distance between the abutting part of the sealing part and the extending part and the free end of the extending part is, the contact area between the extending part and the high-temperature and high-humidity environment in the inner pot can be reduced, and the formation of condensed water is further reduced. Ideally the distance between the abutment of the sealing part and the extension part and the free end of the extension part is 0mm. The distance between the abutting part of the sealing part and the extension part and the free end of the extension part in the practical application process can be 0mm, 1mm, 2mm and 3mm.

In the above technical solution, preferably, the sealing portion abuts against the supporting portion in the closed state; or the sealing part is abutted with the connecting part and the connecting part of the supporting part in the closing state; alternatively, the sealing portion may be in contact with the lid body in the closed state.

In the closed cover state, the sealing part is abutted against the supporting part to form a sealing cavity, or the sealing part is abutted against the connecting part and the connecting part to form a sealing cavity, or the sealing part is abutted against the lower surface of the cover body to form a sealing cavity. Preferably, the sealing ring is connected to the movable cover plate, and the sealing part abuts against the lower surface of the movable cover plate to form a sealing cavity.

In the above technical solution, preferably, the thickness of the supporting portion is greater than the thickness of the compressing portion.

The thickness of the supporting part is greater than that of the compressing part, so that the compressing part deforms before the supporting part when the cover is closed, the compressing part is attached to the opening of the inner pot in the cover closing state, and the sealing part is driven to tilt upwards in the deformation process of the compressing part, so that the opening end of the cavity is sealed.

In the above technical solution, preferably, the difference between the thickness of the supporting portion and the thickness of the compressing portion is 0.1mm to 0.3mm.

The difference of the thickness of the supporting part minus the thickness of the compressing part is not smaller than 0.1mm, the compressing part is guaranteed to deform before the supporting part, and meanwhile, the difference of the thickness of the supporting part minus the thickness of the compressing part is not larger than 0.3mm, so that the excessive thickness of the supporting part or the excessively small thickness of the compressing part is avoided.

In the above technical scheme, preferably, the included angle between the supporting part and the horizontal plane is larger than the included angle between the compressing part and the horizontal plane in the uncapping state, so that the compressing part deforms before the supporting part when the cover is closed, the compressing part is attached to the opening of the inner pot in the cover closing state, and the sealing part is driven to tilt upwards in the deformation process of the compressing part, so that the opening end of the cavity is sealed. The opened cover state refers to a state in which the sealing ring is not compressed and the cover of the cooking appliance is horizontally placed.

In the above technical solution, preferably, an included angle between the supporting portion and the horizontal plane in the uncapping state is 42 ° to 60 °; and/or the included angle between the compression part and the horizontal plane is 30-48 degrees in the uncapping state; and/or, the difference between the included angle between the supporting part and the horizontal plane and the included angle between the compression part and the horizontal plane in the uncapping state is greater than or equal to 5 degrees.

Preferably, the included angle between the supporting part and the horizontal plane in the uncapping state is 42 degrees, 45 degrees, 50 degrees, 55 degrees and 60 degrees; the included angle between the compression part and the horizontal plane in the uncapping state is 30 degrees, 35 degrees, 40 degrees, 45 degrees and 48 degrees.

In the above technical solution, preferably, the sealing portion is horizontally disposed; alternatively, the sealing portion may be inclined in a direction approaching the open end of the cavity.

The sealing part is horizontally arranged in the uncapping state, and when the cover is closed, the compression part is compressed and drives the sealing part to move towards the direction close to the opening end of the cavity, so that the cavity is sealed; alternatively, in the uncapped state, the seal portion gradually slopes upward in the outside-in direction, so that the amount of compression of the seal ring from the uncapped state to the closed state can be reduced.

In the above technical solution, preferably, the seal ring further includes: and the attaching part is positioned between the connecting part and the supporting part, and is attached to the lower surface of the cover body.

The sealing ring further comprises a fitting part, one end of the fitting part is connected to the connecting part, and the other end of the fitting part is connected to the supporting part. The laminating portion laminating is on the lower surface of lid, when closing the lid for the compression portion is easily compressed. Preferably, the connecting portion extends to form an extension portion or a connecting portion of the connecting portion and the attaching portion extends to form an extension portion. Preferably, the fitting portion is horizontally disposed.

Preferably, ribs are provided on the seal ring, in the closed state, the ribs abut between the seal portion and the open end of the cavity or abut against the inner wall surface of the seal cavity, and the ribs are compressed.

The effort of sealed cavity negative pressure after uncapping can be greater than the sealing ring and open the power for sealed cavity can't open, can't resume original shape, lead to the sealing ring unable to hold the comdenstion water on the lid, in order to prevent that the phenomenon that sealed cavity can't open from taking place, be equipped with the rib on the sealing ring, and by uncapping the in-process that the state formed sealed cavity to closing the lid state, the rib receives the compression, thereby when uncapping, except that the sealing ring is opened the effort that still has the rib, because the effort of rib is greater than the negative pressure effort with the effort of opening of sealing ring, thereby reach the purpose that the sealing ring resumes the normality after uncapping. One or more ribs may be provided on the sealing ring, preferably when a plurality of ribs are provided, the plurality of ribs are evenly distributed on the sealing ring. Specifically, the sealing part is abutted against the supporting part in the closing state, and the ribs comprise first ribs arranged on the sealing part and/or second ribs arranged on the supporting part; or, in the closing state, the sealing part is abutted against the joint of the connecting part and the supporting part, and the ribs comprise a first rib arranged on the sealing part and a second rib arranged at the joint of the connecting part and the supporting part; or the sealing part is in contact with the cover body in the closed state, and the ribs are arranged on the sealing part. Of course, the ribs can be arranged at other positions, and only the ribs are compressed when the sealed cavity is formed, and the ribs can provide a force which is helpful for opening the sealed cavity when the cover is opened.

An embodiment of the second aspect of the present invention provides a cooking appliance including: a pot body comprising an inner pot; the cover body is covered on the cooker body and hinged with the cooker body; and the sealing ring in any embodiment, wherein the connecting part of the sealing ring is connected to the cover body.

The embodiment of the second aspect of the invention provides a cooking appliance having all the advantages of the sealing ring of the first aspect, as it comprises the sealing ring of the embodiment of the first aspect.

The cooking utensil is an electric cooker or an electric pressure cooker.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a seal ring and a cover in a state of opening the cover in the related art;

fig. 2 is a schematic view showing the structure of the sealing ring, the cover and the inner pot in the closed state in the related art.

The correspondence between the reference numerals and the component names in fig. 1 and 2 is:

1' cover body, 2' inner pot, 3' sealing ring.

FIG. 3 is a schematic view showing a structure of a seal ring and a cover in an open-cover state according to an embodiment of the present invention;

FIG. 4 is a schematic view of the seal ring, the cover and the inner pot in a closed state according to the first embodiment of the present invention;

fig. 5 is a schematic structural view of a seal ring and a cover in an open-cover state according to a second embodiment of the present invention;

FIG. 6 is a schematic view of a seal ring, a cover and an inner pot in a closed state according to a second embodiment of the present invention;

the correspondence between the reference numerals and the component names in fig. 3 to 6 is:

1 cover body, 2 inner pot, 31 connecting part, 32 supporting part, 33 compressing part, 34 sealing part, 35 extending part, 36 fitting part, 4 cavity, 5 sealing cavity.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A sealing ring and a cooking appliance according to some embodiments of the present invention are described below with reference to fig. 3 to 6.

As shown in fig. 3 to 6, according to some embodiments of the present invention, a sealing ring is provided for a cooking appliance, the cooking appliance includes a pot body and a cover body 1 covering the pot body, the pot body includes an inner pot 2, the sealing ring includes a connection portion 31, a support portion 32, a compression portion 33 and a sealing portion 34 sequentially connected, wherein the connection portion 31 is connected to the cover body 1, the support portion 32 is inclined upward in an outward-inward direction, and the compression portion 33 is inclined gradually downward in the outward-inward direction, a cavity 4 with an inward opening is formed at a connection portion of the support portion 32 and the compression portion 33, the sealing portion 34 moves in a direction close to the open end of the cavity 4 when the cover is closed, and the sealing portion 34 seals the open end of the cavity 4 in a closed state, and the compression portion 33 is attached to the inner pot 2.

The sealing ring provided by the embodiment of the invention is used for sealing the inner pot 2 and the cover body 1 of the cooking utensil. The sealing ring comprises a connecting part 31, a supporting part 32, a compressing part 33 and a sealing part 34 which are sequentially connected from top to bottom, wherein the connecting part 31 is connected to the cover body 1, the supporting part 32 is inclined upwards along the direction from outside to inside, preferably, the supporting part 32 is inclined upwards gradually, and the compressing part 33 is inclined downwards gradually along the direction from outside to inside, so that a cavity 4 with an inward opening, a V-shaped or U-shaped section or other shapes is formed at the connecting part of the supporting part 32 and the compressing part 33, the sealing part 34 is connected to the lower end of the compressing part 33, the compressing part 33 is contacted with the inner pot 2 when the cover is closed, and is extruded with the opening of the inner pot 2, the sealing part 34 moves towards the opening end close to the cavity 4 in the process of extruding the compressing part 33 and seals the opening end of the cavity 4 under the closing state, so that the cavity 4 forms a sealed cavity 5 isolated from the outside. When cooking or heat preservation is carried out, on one hand, air in the sealed cavity 5 does not flow, thereby the sealed cavity 5 isolates the high-temperature and high-humidity environment in the inner pot 2, and also isolates the external low-temperature environment, the medium-high-temperature environment is formed in the sealed cavity 5, the heat conduction between the low-temperature environment at the outer side of the inner pot 2 and the high-temperature environment in the inner pot 2 is reduced, the heat preservation effect is improved, the temperature difference between the high-temperature and high-humidity environment in the inner pot 2 and the sealed cavity 5 is reduced compared with the condition that the cavity 4 is not closed in the prior art, the formation amount of condensed water drops and the water drop size of formed condensed water are reduced, on the other hand, the contact area between the sealing ring and the high-temperature and high-humidity environment in the inner pot 2 is also reduced after the sealed cavity 5 is formed, and the formation amount of the condensed water is further reduced, and the problem that the condensed water flows onto the shell cover plate is solved.

In the closed state of the cover 1, the compression part 33 is attached to the opening of the inner pot 2, in the related art, the lower end of the compression part 33 is connected with a horizontal part which is horizontally arranged, the horizontal part is connected with the sealing part 34, after the cover 1 is closed, the horizontal part is attached to the opening of the inner pot 2, and the sealing part 34 seals the cavity 4 formed by the compression part 33 and the supporting part 32. The compression amount of the sealing ring from the uncapping state to the capping state is increased in the application, so that the compression part 33 is attached to the opening of the inner pot 2, the compression part 33 can be directly connected with the sealing part 34, a horizontal part is not required, the structure of the sealing ring is simplified, and the cost of the sealing ring is reduced.

Embodiment one:

as shown in fig. 3 and 4, the sealing ring includes a connecting portion 31, a supporting portion 32, a compressing portion 33 and a sealing portion 34 which are sequentially connected, wherein the connecting portion 31 is connected to the cover 1, the supporting portion 32 is inclined upward along the direction from outside to inside, the compressing portion 33 is gradually inclined downward along the direction from outside to inside, the connecting portion between the supporting portion 32 and the compressing portion 33 forms a cavity 4 with an opening facing inwards, the sealing portion 34 moves towards the direction close to the opening end of the cavity 4 when the cover is closed, and the sealing portion 34 seals the opening end of the cavity 4 when the cover is closed, and the compressing portion 33 is attached to the inner pot 2.

Preferably, as shown in fig. 3 and 4, the compression amount (b-a) of the seal ring is 2mm to 10mm from the open lid state to the closed lid state.

When the cover body 1 is closed, the sealing ring is in contact with the inner pot 2 and has an extrusion effect with the inner pot 2, and under the effect of the inner pot 2, the sealing ring is compressed, so that the sealing part 34 moves towards the direction close to the opening end of the cavity 4 and seals the opening end of the cavity 4. From the uncapping state to the closing state, the compression amount of the sealing ring is 2-10 mm, so that a certain interference amount is ensured after the sealing ring forms the sealing cavity 5 in the closing state, and too large closing force caused by too large compression amount of the sealing ring is avoided. Preferably, the compression amount of the seal ring is 3mm to 5mm. The compression amount of the seal ring may be 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm.

Preferably, the sealing portion 34 is at least partially attached to the inner pan 2 in the closed state.

In the closed state, the compression part 33 is attached to the inner pan 2, and the sealing part 34 is attached to the inner pan 2 at least partially, so that the contact area between the sealing ring and the high-temperature and high-humidity environment on the inner pan 2 side is further reduced, and the formation amount of condensed water is further reduced. Preferably, the portion of the sealing portion 34 adjacent to the compression portion 33 is fitted to the inner pan 2.

Preferably, the connection portion 31 or the connection portion between the connection portion 31 and the support portion 32 extends in a direction approaching the axis of the cover 1 to form an extension portion 35, and the extension portion 35 is attached to the lower surface of the cover 1; in the closed state, the sealing portion 34 abuts against the extending portion 35.

The inner surface of the lower end of the connection portion 31 or the inner surface of the connection portion 31 at the connection portion with the support portion 32 is extended inward to form the extension portion 35, and the extension portion 35 can further enhance the sealing effect on the cover 1, preferably, the extension portion 35 is inclined downward in the outside-in direction. In the closed state, the sealing portion 34 abuts against the extending portion 35 to form the sealed cavity 5.

Preferably, as shown in fig. 4, the distance H between the abutment of the sealing portion 34 with the extension portion 35 and the free end of the extension portion 35 is 0mm to 3mm.

In the closed state, the smaller the distance between the abutting part of the sealing part 34 and the extending part 35 and the free end of the extending part 35, the better the distance, the contact area between the extending part 35 and the high-temperature and high-humidity environment in the inner pot 2 can be reduced, and the formation of condensed water is further reduced. Ideally, the distance between the contact point between the seal portion 34 and the extension portion 35 and the free end of the extension portion 35 is 0mm. The distance between the abutting part of the sealing part 34 and the extending part 35 and the free end of the extending part 35 in the practical application process can be 0mm, 1mm, 2mm or 3mm.

Preferably, as shown in fig. 5, the thickness c of the supporting portion 32 is greater than the thickness d of the compressing portion 33.

The thickness of the supporting part 32 is greater than that of the compressing part 33, so that when the cover is closed, the compressing part 33 deforms before the supporting part 32, the compressing part 33 is attached to the opening of the inner pot 2 in the cover closing state, and in the deformation process of the compressing part 33, the sealing part 34 is driven to tilt upwards, so that the opening end of the cavity 4 is sealed.

Preferably, the difference (c-d) between the thickness of the supporting portion 32 and the thickness of the compressing portion 33 is 0.1mm to 0.3mm.

The difference between the thickness of the supporting part 32 and the thickness of the compressing part 33 is not smaller than 0.1mm, so that the compressing part 33 deforms before the supporting part 32, and meanwhile, the difference between the thickness of the supporting part 32 and the thickness of the compressing part 33 is not larger than 0.3mm, and the excessive thickness of the supporting part 32 or the excessive thickness of the compressing part 33 is avoided.

Preferably, as shown in fig. 3, the included angle α between the supporting portion 32 and the horizontal plane in the uncapping state is greater than the included angle β between the compressing portion 33 and the horizontal plane, so that when the cover is closed, the compressing portion 33 deforms before the supporting portion 32, so that the compressing portion 33 is attached to the opening of the inner pot in the cover closing state, and in the deformation process of the compressing portion 33, the sealing portion is driven to tilt upwards, so as to seal the opening end of the cavity. The opened cover state refers to a state in which the sealing ring is not compressed and the cover of the cooking appliance is horizontally placed.

Preferably, the included angle alpha between the supporting part 32 and the horizontal plane in the uncapping state is 42-60 degrees; and/or the included angle beta between the compression part 33 and the horizontal plane is 30-48 degrees in the uncapping state; and/or, a difference (α - β) between the angle of the supporting portion 32 and the horizontal plane and the angle of the compressing portion 33 and the horizontal plane in the opened state is greater than or equal to 5 °.

Preferably, the included angle between the support portion 32 and the horizontal plane in the uncapped state is 42 °, 45 °, 50 °, 55 °, 60 °; the included angle between the compression portion 33 and the horizontal plane in the open-cover state is 30 °,35 °, 40 °, 45 °, 48 °.

Preferably, as shown in fig. 3, the sealing portion 34 is disposed horizontally.

The sealing part 34 is horizontally arranged in the uncapping state, and when the cover is closed, the compression part 33 is compressed and drives the sealing part 34 to move in a direction approaching to the opening end of the cavity 4, thereby sealing the cavity 4.

Preferably, the seal ring further comprises: and an attaching portion 36 located between the connecting portion 31 and the supporting portion 32, the attaching portion 36 being attached to the lower surface of the cover 1.

The seal ring further includes a fitting portion 36, one end of the fitting portion 36 is connected to the connecting portion 31, and the other end of the fitting portion 36 is connected to the supporting portion 32. The attaching portion 36 is attached to the lower surface of the cover 1, and the compressing portion 33 is easily compressed when the cover is closed. Preferably, the connection portion 31 extends to form the extension portion 35 or the connection portion between the connection portion 31 and the attaching portion 36 extends to form the extension portion 35. Preferably, the engaging portion 36 is disposed horizontally.

Preferably, the sealing ring is provided with ribs, and in the closed state, the ribs are abutted between the sealing portion 34 and the open end of the cavity 4 or on the inner wall surface of the sealing cavity 5, and the ribs are compressed.

The effort of sealed cavity negative pressure after uncapping can be greater than the sealing ring and open the power for sealed cavity 5 can not open, can't resume original shape, lead to the sealing ring unable to hold the comdenstion water on the lid 1, in order to prevent that sealed cavity 5 can't open the phenomenon from taking place, be equipped with the rib on the sealing ring, and by uncapping the in-process that the state forms sealed cavity 5 to closing the lid state, the rib receives the compression, thereby when uncapping, there is the effort of rib except that the sealing ring is opened the power, because the effort of rib adds the power of opening of sealing ring and is greater than the negative pressure effort, thereby reach the purpose that uncapping back sealing ring resumes the normality. One or more ribs may be provided on the sealing ring, preferably when a plurality of ribs are provided, the plurality of ribs are evenly distributed on the sealing ring. Specifically, in the closed state, the sealing portion 34 abuts against the supporting portion 32, and the ribs include first ribs provided on the sealing portion 34 and/or second ribs provided on the supporting portion 32; or, in the closed state, the sealing part 34 is abutted against the connection part 31 and the supporting part 32, and the ribs comprise a first rib arranged on the sealing part 34 and a second rib arranged on the connection part 31 and the supporting part 32; alternatively, in the closed state, the sealing portion 34 is in contact with the lid 1, and the bead is provided on the sealing portion 34. Of course, the ribs may be located at other positions, and only the ribs need to be compressed when the sealed cavity 5 is formed, and the ribs can provide a force for helping the sealed cavity 5 to open when the cover is opened.

Embodiment two:

the difference from the first embodiment is that the sealing portion 34 is inclined in a direction approaching the open end of the cavity 4 as shown in fig. 5 and 6.

In the uncapped state, the seal portion 34 is gradually inclined upward in the outside-in direction, so that the amount of compression of the seal ring from the uncapped state to the closed state can be reduced. When the seal portion 34 is inclined in a direction approaching the open end of the cavity 4, the compression amount of the seal ring is m-n from the open-lid state to the closed-lid state.

Embodiment III:

the difference from the first embodiment is that the sealing portion 34 abuts against the supporting portion 32 in the closed state, that is, the sealing portion 34 abuts against the supporting portion 32 in the closed state to form the sealed cavity 5.

Embodiment four:

the difference from the first embodiment is that the sealing portion 34 abuts against the connection portion between the connection portion 31 and the support portion 32 in the closed state, that is, the sealing portion 34 abuts against the connection portion between the connection portion 31 and the support portion 32 to form the sealed cavity 5.

Fifth embodiment:

the difference from the first embodiment is that the sealing portion 34 abuts against the lid body 1 in the closed state.

The sealing portion 34 abuts against the lower surface of the lid body 1 to form a sealed cavity 5. Preferably, the sealing ring is attached to the flap, and the sealing portion 34 abuts against the lower surface of the flap to form the sealing cavity 5.

An embodiment of the second aspect of the present invention provides a cooking appliance, including: a pot body comprising an inner pot 2; the cover body 1 is covered on the cooker body; the seal ring of any of the above embodiments, the connecting portion 31 of the seal ring is connected to the lid body 1.

The embodiment of the second aspect of the invention provides a cooking appliance having all the advantages of the sealing ring of the first aspect, as it comprises the sealing ring of the embodiment of the first aspect.

The cooking utensil is an electric cooker or an electric pressure cooker.

In summary, in the sealing ring provided by the embodiment of the invention, when the cover is closed, the compression part is attached to the inner pot and drives the sealing part to move towards the direction close to the opening end of the cavity, so that the sealing part seals the opening end of the cavity in the closed state to form a sealing cavity.

In the description of the present invention, the term "plurality" means two or more, unless explicitly specified and defined otherwise; unless specified or indicated otherwise, the terms "coupled," "fixed," and the like are to be construed broadly and are, for example, capable of being coupled either permanently or detachably, or integrally or electrically; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 sealing ring for cooking utensil, cooking utensil includes a kind of deep pot body and lid are established lid on the kind of deep pot body, the kind of deep pot body with lid is articulated, the kind of deep pot body includes interior pot, its characterized in that includes:

the sealing device comprises a cover body, a connecting part, a supporting part, a compression part and a sealing part, wherein the connecting part is connected to the cover body, the supporting part is inclined upwards along the direction from outside to inside, the compression part is inclined downwards gradually along the direction from outside to inside, a cavity with an inward opening is formed at the joint of the supporting part and the compression part, the sealing part moves towards the direction close to the opening end of the cavity when the cover is closed, the sealing part seals the opening end of the cavity when the cover is closed, and the compression part is attached to the inner pot, so that the cavity forms a sealed cavity isolated from the outside;

the sealing ring is provided with ribs which are abutted between the sealing part and the opening end of the cavity or abutted on the inner wall surface of the sealing cavity in a closed cover state, and the ribs are compressed;

the ribs comprise first ribs arranged on the sealing part and/or second ribs arranged on the supporting part.

2. A seal ring as claimed in claim 1, wherein,

the compression amount of the sealing ring is 2 mm-10 mm from the opening state to the closing state.

3. A seal ring as claimed in claim 1, wherein,

and the sealing part is at least partially attached to the inner pot in the closed state.

4. A seal ring according to any one of claim 1 to 3,

the connecting part or the connecting part and the supporting part extend to a direction close to the axis of the cover body to form an extending part, and the extending part is attached to the lower surface of the cover body; the sealing part is abutted with the extending part in the closing state.

5. The seal ring of claim 4,

the distance between the abutting part of the sealing part and the extension part and the free end of the extension part is 0 mm-3 mm.

6. A seal ring according to any one of claim 1 to 3,

the sealing part is abutted with the supporting part in the closing state; or the sealing part is abutted with the connecting part and the connecting part of the supporting part in the closing state; alternatively, the sealing portion may be in contact with the lid body in the closed state.

7. A seal ring according to any one of claim 1 to 3,

the thickness of the supporting portion is greater than the thickness of the compressing portion.

8. The seal ring of claim 7,

the difference between the thickness of the supporting part and the thickness of the compressing part is 0.1 mm-0.3 mm.

9. A seal ring according to any one of claim 1 to 3,

and in the uncapping state, the included angle between the supporting part and the horizontal plane is larger than the included angle between the compression part and the horizontal plane.

10. The seal ring of claim 9,

the included angle between the supporting part and the horizontal plane is 42-60 degrees in the uncapping state; and/or the included angle between the compression part and the horizontal plane is 30-48 degrees in the uncapping state; and/or, the difference between the included angle between the supporting part and the horizontal plane and the included angle between the compression part and the horizontal plane in the uncapping state is greater than or equal to 5 degrees.

11. A seal ring according to any one of claim 1 to 3,

the sealing part is horizontally arranged; alternatively, the sealing portion may be inclined in a direction approaching the open end of the cavity.

12. A seal ring according to any one of claims 1 to 3, further comprising:

and the attaching part is positioned between the connecting part and the supporting part, and is attached to the lower surface of the cover body.

13. A cooking appliance, comprising:

a pot body comprising an inner pot;

the cover body is covered on the cooker body and hinged with the cooker body; and

a sealing ring as claimed in any one of claims 1 to 12, the connecting portion of the sealing ring being connected to the cover.

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