JP7106574B2 - seal ring and utensil - Google Patents

Description

This application relates to a Chinese utility model application with application number 201720393011X and entitled "Seal Ring and Cookware", filed with the Chinese Patent Office on April 14, 2017, and dated April 14, 2017 A Chinese utility model application with application number 2017203964328 and titled "Seal Ring and Cookware", filed with the Chinese Patent Office on April 14, 2017, and filed with the Chinese Patent Office on April 14, 2017, Claiming priority from the Chinese utility model application with application number 201720402801X and title of invention "cooking utensil", the entire content of which is incorporated herein by reference.

TECHNICAL FIELD The present invention relates to the technical field of kitchen utensils, and more particularly to a sealing ring and a cooking utensil containing such a sealing ring.

In conventional cooking utensils, such as rice cookers, the lid body 1' is sealed by a sealing ring 3' and an inner pot 2', and the fitting portion between the sealing ring 3' and the inner pot 2' is generally "V" shaped or It is "U" shaped. The structure of such a seal ring 3' is shown in FIG. 1 when the lid 1' is not closed, and in FIG. 2 when the lid 1' is closed.

After a certain time of cooking or keeping warm, there is a large temperature difference between the temperature inside the pot and the outside of the pot, and the sealing ring is far away from the heat preservation heating device and is weak, so it is not affected by the relatively low temperature air outside. The temperature outside the seal ring is so low that water vapor in the pan cools and condenses into water droplets when it contacts the cold seal ring. When the lid is opened, a lot of water flows into the housing cover and the lid of the rice cooker, giving the user an unpleasant experience. Such condensed water not only annoys the user, but also drips onto the rice when it is kept warm, causing a "drip white" phenomenon and easily deteriorating the rice.

In order to solve the above problems, some rice cookers are provided with a water receiving box. Although such measures avoid water from flowing into the housing cover of the rice cooker, the rice cooker itself still produces condensed water. That is, this means only puts the condensed water into the water receiving box, which not only increases the cost of the water receiving box, but also fundamentally solves the problem that the water vapor in the pot is cooled and condensed into water droplets. neither can it solve the "drip white" phenomenon.

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

SUMMARY OF THE INVENTION Accordingly, one object of the present invention is to provide a seal ring.

Another object of the present invention is to provide a cooking utensil comprising the above sealing ring.

In order to achieve the above object, an embodiment of the first aspect of the present invention is a seal ring used in a cooking utensil including a pot having an inner pot and a lid covering the pot. comprising a connecting part, a supporting part, a compressing part and a sealing part connected in sequence, the connecting part being connected to the lid, the supporting part being inclined upward along the direction from outside to inside; The entire compression part is gradually inclined downward along the direction from the outside to the inside, and a cavity opening inward is formed at the connection point between the support part and the compression part, and when the lid is closed, the A seal ring, wherein the seal portion moves toward the opening end of the cavity, and in a closed state, the seal portion seals the opening end of the cavity, and the entire compression portion is in close contact with the inner pot. I will provide a.

The sealing ring provided in the above embodiments of the present invention is used for sealing between the inner pot and the lid of the cooking utensil. The sealing ring includes a connecting part, a supporting part, a compressing part and a sealing part connected in order from top to bottom, the connecting part being connected to the lid, and the supporting part being upward along the direction from outside to inside. sloping, preferably the support is sloping upward gradually and the compressing part is sloping gradually downward along the direction from outside to inside, so that a cavity is formed at the connection point between the support and the compressing part. The cavity opens inward and has a V-shaped, U-shaped or other shape in cross section, a seal is connected to the lower end of the compressing part, and the compressing part is connected to the inner pot when the lid is closed. and press against the opening of the inner pot, and in the process of pressing the compressing portion and the inner pot against each other, the sealing portion moves toward the opening end of the cavity, and in the closed state, seals the opening end of the cavity, A cavity is formed in a sealed cavity isolated from the outside. Therefore, when the rice is cooked or kept warm, on the one hand, the air inside the sealed cavity does not flow, so that the sealed cavity is isolated from the hot and humid environment of the inner pot and the cold environment outside, forming a medium-high temperature environment in the sealed cavity. reduce the heat transfer between the low temperature environment outside the inner pot and the high temperature environment inside the inner pot, improve the heat preservation effect, and the high temperature and humidity environment inside the inner pot and the temperature difference in the sealed cavity are also eliminated from the conventional technology. The cavity is smaller than if it were not closed, thereby reducing the amount of condensate formed and the size of the condensed water droplets; It can reduce the contact area with the hot and humid environment, further reduce the amount of condensed water formed, and solve the problem of condensed water flowing into the housing cover and cover plate.

When the lid is closed, the compression part is in close contact with the opening of the inner pot. After the lid is closed, the horizontal part fits tightly to the opening of the inner pot, and the sealing part seals the cavity formed by the compression part and the support part. In the present application, by increasing the amount of compression of the seal ring from the open state to the closed state, the compression part can be tightly attached to the opening of the inner pot and directly connected to the seal part, and the horizontal part can be It eliminates the need for installation, simplifies the structure of the seal ring, and reduces the cost of the seal ring.

The pot and the lid are connected by hinges or by screws, or the lid is provided on the pot and connected to the pot.
In the above technical means, the seal ring is provided with a rib, and when the lid is closed, the rib abuts against the inner wall surface of the sealed cavity, or the rib abuts between the seal portion and the cavity. and the rib is compressed.
When the lid is closed, the sealing portion abuts against the cavity to seal the open end of the cavity and form the cavity as a sealed cavity isolated from the outside. When the lid is opened, the acting force of the negative pressure in the sealed cavity is greater than the opening force of the seal ring, so the sealed cavity may not be able to be opened and cannot return to its original shape. The ring cannot contain condensed water on the lid. In order to prevent the sealing cavity from being opened, the sealing ring is provided with ribs, and in the process of forming the sealing cavity from the open state to the closed state, the ribs are compressed, and in the closed state, The rib abuts against the inner wall surface of the sealed cavity, or the rib is located at the abutment point between the seal portion and the cavity, so that when the lid is opened, the rib acts in addition to the opening force of the seal ring, Since the force obtained by adding the acting force of the rib and the opening force of the seal ring is greater than the acting force of the negative pressure, the purpose of returning the seal ring to its normal state after opening the lid can be achieved. The seal ring may be provided with one or more ribs, and when the plurality of ribs is provided, it is preferred that the plurality of ribs be evenly distributed on the seal ring.
Regarding the position of the rib, one end of the rib is connected to the wall surface of the sealing portion or the cavity, or is connected to the connection point between the connecting portion and the support portion, and the other end of the rib is connected to the inner wall surface of the sealed cavity when the lid is closed. and the ribs are compressed so that when the lid is opened, the ribs repel and provide a favorable force to open the sealed cavity, or when the lid is closed, the ribs repel the contact between the seal and the cavity. The contact point is a sealing point where the sealing portion abuts against the cavity to seal the cavity when the lid is closed. A portion of the rib located between the portion where the seal portion abuts and the portion where the seal portion and the cavity abut is compressed, and when the lid is opened, the rib repels and is advantageous for opening the sealed cavity. It can provide a great working force. Of course, the ribs can also be provided in other positions, provided that the ribs are compressed when forming the sealed cavity and can provide a force that is advantageous to open the sealed cavity when the lid is opened.

In addition, the seal ring provided in the above embodiment of the present invention has the following additional technical features.

In the above technical means, it is preferable that the compression amount of the seal ring is 2 mm to 10 mm from the open state to the closed state.

When the lid is closed, the seal ring contacts and presses against the inner pot, and the seal ring is compressed by the action of the inner pot, so that the seal portion moves toward the opening end of the cavity and closes to the opening end of the cavity. sealed. From the open state to the closed state, the compression amount of the seal ring is 2 mm to 10 mm, so that in the closed state, the seal ring can ensure that there is a certain interference after forming the sealed cavity, and the seal To avoid excessive force for closing a lid due to excessive compression of a ring. The amount of compression of the seal ring is preferably 3 mm to 5 mm. The amount of compression of the seal ring may be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.

In the above technical means, it is preferable that at least part of the seal portion is in close contact with the inner pot when the lid is closed.

When the lid is closed, the compressing portion is in close contact with the inner pot, and at least a portion of the sealing portion is in close contact with the inner pot, further reducing the contact area of the seal ring with the hot and humid environment on the inner pot side. , the amount of condensate formed is further reduced. It is preferable that the portion of the seal portion near the compression portion is in close contact with the inner pot.

In the above technical means, the connection portion or the connection portion between the connection portion and the support portion extends in a direction approaching the axis of the lid to form an extension, and the extension extends from the lower surface of the lid. It is preferable that the sealing portion is in contact with the extending portion when the lid is closed.

The inner surface of the lower end of the connecting portion or the inner surface of the connecting portion between the connecting portion and the support portion extends inward to form an extension, and the extension can further improve the sealing effect on the lid, preferably , the extension slopes downward along the direction from outside to inside. In the closed condition, the seal abuts the extension to form a sealed cavity.

In the above technical means, it is preferable that the distance from the contact point between the seal portion and the extending portion to the free end of the extending portion is 0 mm to 3 mm.

When the lid is closed, it is preferable that the distance from the point of contact between the seal and the extending portion to the free end of the extending portion is as small as possible, thereby reducing the contact area between the extending portion and the hot and humid environment inside the inner pot. , the formation of condensate can be further reduced. Ideally, the distance from the point of contact between the seal and the extension to the free end of the extension is 0 mm. In practical applications, the distance from the abutment point of the sealing part and the extending part to the free end of the extending part may be 0 mm, 1 mm, 2 mm, 3 mm.

In the above technical means, when the lid is closed, the seal portion abuts the support portion, or when the lid is closed, the seal portion abuts a connecting portion between the connection portion and the support portion, or , It is preferable that the sealing portion is in contact with the lid when the lid is closed.

In the closed state, the seal abuts the support to form a sealed cavity, or the seal abuts the connection between the connection and the support to form a sealed cavity, or the seal abuts against the support. It abuts the underside of the lid to form a sealed cavity. Preferably, a seal ring is connected to the movable cover plate and the sealing portion abuts the lower surface of the movable cover plate to form a sealed cavity.

In the above technical means, it is preferable that the thickness of the support portion is greater than the thickness of the compression portion.

Since the thickness of the support portion is greater than the thickness of the compression portion, the compression portion deforms before the support portion when the lid is closed. During the process of deformation, the seal portion bends upward to seal the open end of the cavity.

In the above technical means, it is preferable that the difference between the thickness of the support portion and the thickness of the compression portion is 0.1 mm to 0.3 mm.

Since the difference obtained by subtracting the thickness of the compressed portion from the thickness of the support portion is 0.1 mm or more, it can be ensured that the compressed portion deforms before the support portion, and the thickness of the compressed portion is determined by the thickness of the support portion. The difference minus the thickness is no more than 0.3 mm to avoid having the support part too thick or the compression part too thin.

In the above technical means, when the lid is open, the included angle between the support portion and the horizontal plane is preferably larger than the included angle between the compressed portion and the horizontal plane, so that when the lid is closed, the compressed portion is positioned ahead of the support portion. When the lid is deformed and the lid is closed, the compression part is in close contact with the opening of the inner pot, and in the process of deformation of the compression part, the sealing part is interlocked and bends upward to seal the open end of the cavity. Here, the lid open state is a state in which the seal ring is not compressed and the lid body of the cooking utensil is horizontally arranged.

In the above technical means, when the lid is open, the included angle between the support portion and the horizontal plane is 42° to 60°, and/or when the lid is opened, the included angle between the compression portion and the horizontal plane is 30° to 48°. and/or, in the lid open state, the difference between the included angle between the support portion and the horizontal plane and the included angle between the compressed portion and the horizontal plane is preferably 5° or more.

When the lid is open, the included angles between the support portion and the horizontal plane are 42°, 45°, 50°, 55°, and 60°, and when the lid is open, the included angles between the compression portion and the horizontal plane are 30°, 35°, and 40°. °, 45° and 48° are preferred.

In the above technical means, it is preferable that the seal portion is provided horizontally, or that the seal portion is inclined in a direction approaching the opening end of the cavity.

When the lid is open, the seal portion is provided horizontally. When the lid is closed, the compressing portion is compressed, and the seal portion moves in conjunction with the opening end of the cavity to seal the cavity. Alternatively, in the open state, the seal portion is gradually inclined upward along the direction from the outside to the inside, so that the amount of compression of the seal ring from the open state to the closed state can be reduced.

In the above technical means, it is preferable that the seal ring further includes a contact portion positioned between the connection portion and the support portion and in close contact with the lower surface of the lid.

The seal ring further includes a contact portion, one end of which is connected to the connection portion, and the other end of which is connected to the support portion. The tight contact portion is in close contact with the lower surface of the lid body, and the compression portion is easily compressed when the lid is closed. Preferably, the connecting portion extends to form an extension, or the connection point between the connecting portion and the sealing portion extends to form an extension. It is preferable that the contact portion is provided horizontally.

In the above technical means, when the sealing portion abuts against the lid body in the closed state, the rib is positioned at the sealing portion, or the sealing portion abuts against the support portion in the closed state. In this case, the rib includes a first rib provided on the seal portion and/or a second rib provided on the contact portion of the support portion with the seal portion, or the lid is closed. In the case where the seal portion abuts on the connection portion between the connection portion and the support portion, the rib is a first rib provided on the seal portion and/or the support portion and the connection portion. or the connection portion or the connection portion between the connection portion and the support portion extends in a direction approaching the axis of the lid to form an extension portion and when the extending portion is in close contact with the lower surface of the lid body and the sealing portion abuts against the extending portion in the closed state, the rib is a first rib provided on the sealing portion, and/or Alternatively, it is preferable to include a second rib provided in the extending portion.

A seal portion is connected to the lower end of the compression portion, and when the lid is closed, the seal portion abuts the lid and the rib is located on the seal portion. In the closed state, the seal abuts the lid to form a sealed cavity. When the lid is closed, the seal portion moves toward the lid body and comes into contact with the lid body, and ribs are provided on the seal portion, preferably on the upper surface of the seal portion. When the ribs are compressed and the lid is opened, the ribs release elastic energy and the combined force of the rib's acting force and the seal ring's opening force opens the sealed cavity. Of course, the ribs can be located on the support part and/or the compression part, and the position and size of the ribs are set rationally so that the ribs are compressed when forming a sealed cavity, and the ribs are sealed when the lid is opened. It suffices to be able to provide an acting force favorable to opening the cavity.

Alternatively, the seal portion is connected to the lower end of the compression portion, and in the closed state, the seal portion abuts the support portion, and the rib is a first rib provided in the seal portion and/or the seal portion in the support portion. and a second rib provided at the abutment location. In the closed state, the seal portion abuts the support portion to form a sealed cavity. In order to ensure that the ribs are easily compressed in the closed state, the ribs include a first rib provided on the seal portion and/or a second rib provided on the support portion, and a second rib provided on the support portion. A rib is positioned at a contact portion of the support portion with the seal portion. Preferably, the first rib is provided on the upper surface of the seal portion and the second rib is provided on the lower surface of the support portion. Of course, the ribs can be placed in other positions as long as the ribs are compressed when forming the sealed cavity, and the ribs provide a favorable force to open the sealed cavity when the lid is opened.

Alternatively, the seal portion is connected to the lower end of the compression portion, and when the lid is closed, the seal portion abuts the connecting portion between the support portion and the connection portion, and the rib is a first rib provided on the seal portion and/or Alternatively, it includes a second rib provided at a connecting portion between the supporting portion and the connecting portion. In the closed state, the sealing portion abuts the connecting portion between the supporting portion and the connecting portion to form a sealed cavity. In order to ensure that the ribs are easily compressed when the lid is closed, the ribs are formed by the first ribs provided on the sealing portion and/or the second ribs provided on the connecting portion between the support portion and the connecting portion. and the second rib is positioned at a contact portion with the seal portion at the connection portion between the support portion and the connection portion. Preferably, the first rib is provided on the upper surface of the seal portion, and the second rib is provided on the lower surface of the connecting portion between the support portion and the connecting portion. Of course, the ribs can be placed in other positions as long as the ribs are compressed when forming the sealed cavity and provide a favorable force to open the sealed cavity when the lid is opened.

Alternatively, the seal portion is connected to the lower end of the compression portion. The inner surface of the lower end of the connecting portion or the inner surface of the connecting portion between the connecting portion and the support portion extends in a direction approaching the axis of the lid to form an extension, and the extension can further improve sealing to the lid. Preferably, the extension slopes downward along the direction from outside to inside. In the closed condition, the seal abuts the extension to form a sealed cavity. In order to ensure that the ribs are easily compressed in the closed state, the ribs include a first rib provided on the seal portion and/or a second rib provided on the extension portion, and a second rib provided on the extension portion. is located at a portion of the extended portion that abuts against the seal portion. Preferably, a first rib is provided on the upper surface of the seal portion and a second rib is provided on the lower surface of the extension portion. Of course, the ribs can be placed in other positions as long as the ribs are compressed when forming the sealed cavity, and the ribs provide a favorable force to open the sealed cavity when the lid is opened.

Of course, the seal portion can also be installed at the support portion or at the connection point between the support portion and the connection portion. and / or a second rib provided at the contact point between the compression part and the seal part, or the seal part is installed at the support part or at the connection point between the support part and the connection part When the lid is closed, the sealing portion abuts the inner pot, and the rib is provided on the sealing portion.

Of course, in addition to the compression portion being in close contact with the inner pot when the lid is closed, the deformation portion may be connected between the compression portion and the seal portion. When the deformation portion contacts the inner pot, the compression portion may or may not contact the inner pot. When the deformed portion contacts the inner pot, the amount of compression of the seal ring from the open state to the closed state can be reduced more than when the compressed portion abuts on the inner pot when the lid is closed. Preferably, the deformation is provided horizontally.

According to the cooking utensil provided in the embodiment of the second aspect of the present invention, the cooking utensil comprises a pot body having an inner pot, a lid covering the pot body, and any one of the above and a seal ring as described in the example, the connection portion of the seal ring being connected to the lid.

The cooking utensils provided in the embodiments of the second aspect of the invention include the sealing rings described in the embodiments of the first aspect and thus have all the beneficial effects of the sealing rings of the first aspect.

In the above technical means, one end of the seal portion remote from the connection portion protrudes upward to form a protrusion, and the protrusion is used to reinforce the strength of the seal portion, and the lid is closed. Then, it is preferable that the sealing part is closely attached to the upper surface of the inner pot and does not protrude from the inner wall surface of the inner pot, and the protrusion closes the cavity to form the cavity as a sealed cavity.

When the lid is closed, the sealing portion is in close contact with the upper surface of the inner pot to achieve a tight seal between the inner pot and the lid. In order to reinforce the strength of the seal portion, one end of the seal portion remote from the connection portion (the end of the seal portion) is provided with a protrusion, and the seal portion is prevented from being bent when the lid is closed. and the upper surface of the inner pot is not well-fitted, wherein the seal part includes a seal body and a protrusion formed by protruding the end of the seal body, and the protrusion reinforces the strength of the seal body. can be understood as used in When the lid is closed, the protrusion seals the open end of the cavity, thereby forming the cavity into a sealed cavity isolated from the outside. When closed, the protrusion seals the open end of the cavity, forming the cavity into a sealed cavity isolated from the outside. When the rice is cooked or kept warm, the sealed cavity isolates the hot and humid environment inside the inner pot and the cold environment outside, so that the humidity inside the sealed cavity is low and condensed water is less likely to occur. In addition to being in close contact with the upper surface of the inner pot, the sealing portion is also in close contact with the upper surface of the inner pot, and the sealing portion is flush with the inner wall surface of the inner pot or located outside the inner wall surface of the inner pot, that is, Since the seal does not protrude from the inner wall surface of the inner pot, the seal does not come into contact with the hot and humid environment inside the inner pot, no condensed water occurs in the seal, and only the protrusions on the seal ring are inside. Due to the contact with the hot and humid environment inside the pot, the contact area is very small, even if there is a certain temperature difference, the size of the condensed water droplets formed is small and the amount is small, so that the condensed water will spread to the housing cover And the problem of flowing into the movable cover plate can be solved.

Compared to the related art in which the sealing part is installed independently at the end of the sealing part and the cavity is closed by the sealing part when the lid is closed, in the present application, it is used to reinforce the strength of the sealing part (seal body) of the sealing ring. Since the cavity is sealed by using the formed projection, the sealing part does not need to be installed separately, and the cost of the sealing ring is reduced.

In the above technical means, it is preferable that 0.5T≦H≦2T, where H is the height of the projection, and T is the thickness of the seal portion.

By setting 0.5T ≤ H ≤ 2T, it is possible to ensure a good reinforcing effect on the seal portion (seal body) of the protrusion, and at the same time, the size of the protrusion is reduced due to the height of the protrusion being too high. It is also avoided that it is too large to increase the contact area with the hot and humid environment inside the inner pot and increase the amount of condensed water formed.

Preferably H=0.5T, or H=T, or H=1.5T, or H=2T.

In the above technical means, the protrusion is preferably perpendicular to the seal portion (seal body).

The protrusion is perpendicular or nearly perpendicular to the seal portion (seal body), ie, the connection point between the protrusion and the seal portion (seal body) is L-shaped. The seal part (seal body) is in close contact with the upper surface of the inner pot, and when the protrusion closes the cavity, the protrusion is perpendicular or nearly perpendicular to the seal part (seal body), thereby reducing the length of the protrusion. It can reduce the contact area of the seal ring with the hot and humid environment inside the inner pot, and the reinforcement effect of the seal body is good.

In the above technical means, when the lid is closed, it is preferable that the projection abuts against the lid, or abuts against the supporting portion, or abuts against a connecting portion between the supporting portion and the connecting portion.

The protrusion is connected to the end of the seal body, and in the closed state, the protrusion abuts against the lid body to form a sealed cavity, and in the closed state, only the outer surface of the protrusion is exposed to the hot and humid inside of the inner pot. come into contact with the environment. Alternatively, the protrusion abuts the support to form a sealed cavity. Alternatively, the protrusion abuts on the connection point between the support and the connection part to form a sealed cavity, preferably the position where the protrusion abuts on the connection point between the support and the connection part is rationally set. Therefore, the portion of the support located inside the inner pot should be reduced as much as possible, and the area of contact of the support with the hot and humid environment inside the inner pot should be reduced.

In the above technical means, the connection portion or the connection portion between the connection portion and the support portion extends in a direction approaching the axis of the lid to form an extension, and the extension extends from the lower surface of the lid. It is preferable that the protrusion is brought into contact with the extending portion when the lid is closed.

When the lid is closed, the sealing portion abuts against the extending portion to form a sealed cavity, and specifically, the connecting portion, or the connecting portion between the connecting portion and the support portion, extends in a direction approaching the axis of the lid. Forming an extension part, the extension part is closely attached to the lower surface of the lid, preferably the lid includes a movable lid plate, the extension part abuts the lower surface of the movable lid plate, and the protrusion is connected to the end of the seal body. , and when the lid is closed, the protrusion abuts the extension.

In the above technical means, it is preferable that the distance from the contact point between the protrusion and the extension to the free end of the extension is 0 mm to 3 mm.

In the above technical means, when the lid is closed, the seal portion is provided along the horizontal direction, or when the lid is closed, the seal portion is inclined upward along the direction from the outside to the inside to form the first , and a second inclined surface adapted to the first inclined surface is preferably formed on the upper surface of the inner pot at a location corresponding to the first inclined surface. When the lid is closed, the seal portion is provided along the horizontal direction or forms a first inclined surface, and when the lid is opened, the seal portion is provided along the horizontal direction or the seal portion One inclined surface is provided, or the sealing portion is provided along the other direction, and in the closed state, is provided along the horizontal direction due to the closing force, or forms the first inclined surface.

When the lid is closed, the seal portion is provided horizontally, and the portion of the upper surface of the inner pot that is in close contact with the seal portion may be a horizontal surface or an inclined surface that slopes upward or downward from the inside to the outside. , In the closed state, by adjusting the amount of compression of the seal ring, etc., it is ensured that at least a part of the seal portion is in close contact with the upper surface of the inner pot. Or, in the closed state, the sealing part is inclined upward along the direction from outside to inside to form a first inclined surface to ensure that the upper surface of the inner pot is well adhered to the first inclined surface. In order to do so, a second inclined surface is formed on the upper surface of the inner pot at a location corresponding to the first inclined surface, preferably the second inclined surface and the first inclined surface have an inclination angle matches. In the closed state, if the seal portion slopes upward along the direction from the outside to the inside to form a first inclined surface, in the open state, the seal ring has only the seal portion along the horizontal direction. or the seal slopes upward along the out-to-in direction. Of course, at this time, the seal portion may be brought into close contact with the pan rim, or both the seal portion and the compression portion may be brought into close contact with the pan rim.

In the above technical means, the inner pot includes a pot body and a pot rim formed by extending the pot body to the outer circumference, and in a lid closed state, the seal portion is formed between the pot body and the pot rim. It is preferable not to protrude from the outer edge of the connection location. The pot body may or may not have a pot rim, and when the pot rim is set, the inner wall surface of the inner pot consists of the inner wall surface of the pot body, the pot body and the pot rim. Since the seal portion does not protrude from the inner wall surface of the inner pot, the seal portion does not protrude from the outer edge of the connection portion between the pot body and the pot rim.

In order to ensure that the seal does not come into contact with the hot and humid environment inside the inner pot when the lid is closed, the seal does not protrude from the outer edge of the connection between the pot body and the pot rim, that is, the seal: It is flush with the outer edge of the connection point between the pot body and the pot rim, or positioned outside the outer edge of the connection point between the pot body and the pot rim.

In the technical means described above, it is preferable that a transitional arc portion is provided at a connecting portion between the pot body and the pot rim, and the seal portion does not protrude from the outer edge of the transitional arc portion when the lid is closed.

Of course, the connecting portion between the pot body and the pot rim does not have to be provided with the transitional arc portion, and the connecting portion between the pot body and the pot rim becomes a right angle. Do not protrude from the right angle joint between the main body and the pot rim.

Preferably, the lid body includes an inner lid, a movable lid plate is detachably attached to the inner lid by a clamp ring, and the movable lid plate is positioned inside the clamp ring. A seal ring is fixed by the clamp ring and the movable cover plate, and specifically, the connecting portion is press-fitted or sandwiched between the movable cover plate and the clamp ring. Since the method of attaching the seal ring to the lid body is a mature technology, a detailed explanation is omitted here.

The cooker is a rice cooker or an electric pressure cooker.

Other aspects and advantages of the invention will become apparent from the following description, or may be learned by practice of the invention.

The above and/or other aspects and advantages of the present invention will become clearer and easier to understand from the following description of the embodiments combined with the drawings.

FIG. 1 is a structural schematic diagram of a seal ring and a lid in an open lid state according to related art. FIG. 2 is a structural schematic diagram of a seal ring, a lid body, and an inner pot in a closed state according to the related art. FIG. 3 is a structural schematic diagram of a seal ring and a lid in an open state according to Embodiment 1 of the present invention. FIG. 4 is a structural schematic diagram of the seal ring, the lid and the inner pot when the lid is closed according to the first embodiment of the present invention. FIG. 5 is a structural schematic diagram of a seal ring and a lid in an opened state according to Embodiment 2 of the present invention. FIG. 6 is a structural schematic view of the seal ring, the lid and the inner pot when the lid is closed according to Embodiment 2 of the present invention. FIG. 7 is a schematic cross-sectional view of a seal ring according to Example 1 of the present invention. FIG. 8 is an enlarged structural schematic view of part A in FIG. FIG. 9 is a schematic cross-sectional view of a seal ring according to Example 1 of the present invention. FIG. 10 is an enlarged structural schematic diagram of the B portion in FIG. FIG. 11 is a structural schematic view of the seal ring, the lid and the inner pot when the lid is closed according to one embodiment of the present invention. FIG. 12 is a structural schematic view of the seal ring, the lid and the inner pot when the lid is closed according to one embodiment of the present invention. FIG. 13 is a structural schematic diagram of a seal ring, a lid and an inner pot when the lid is closed according to one embodiment of the present invention. FIG. 14 is a partial structural schematic view of the fitting structure of the lid, the clamp ring, the seal ring and the inner pot when the sealing portion protrudes from the inner wall surface of the inner pot.

In order that the above objects, features and advantages of the present invention can be understood more clearly, the present invention will now be described in more detail with reference to the drawings and specific embodiments. It should be noted that the examples of the present application and the features in the examples can be combined as long as there is no contradiction.

In order that the present invention may be fully understood, the following description provides many specific details, but the present invention can also be implemented in forms different from those described herein, so the protection scope of the present invention is It is not limited to the specific examples disclosed below.

The sealing ring 3 and cooking utensils according to some embodiments of the present invention will now be described with reference to FIGS. 3-14.

As shown in FIGS. 3 to 6, the seal ring 3 provided in some embodiments of the present invention is applied to a cooking utensil including a pot body having an inner pot and a lid body 1 covering the pot body. The seal ring 3 includes a connection portion 31, a support portion 32, a compression portion 33 and a seal portion 34 connected in order, the connection portion 31 is connected to the lid 1, and the support portion 32 is connected from the outside to the inside. The compression part 33 gradually inclines downward along the direction from the outside to the inside. When the lid is closed, the seal portion 34 moves toward the opening end of the cavity 4, and in the closed state, the seal portion 34 seals the opening end of the cavity 4, and the compression portion 33 is the inner pot. Stick to 2.

The sealing ring 3 provided in the above embodiment of the present invention is used for sealing between the inner pot 2 and the lid 1 of the cooking utensil. The seal ring 3 includes a connection portion 31, a support portion 32, a compression portion 33 and a seal portion 34 connected in order from top to bottom, the connection portion 31 is connected to the lid body 1, and the support portion 32 is connected from the outside to the inside. Preferably, the support portion 32 is gradually inclined upward, and the compression portion 33 is gradually inclined downward along the direction from the outside to the inside, whereby A cavity 4 is formed at the joint between the support part 32 and the compression part 33 , the cavity 4 opens inward and has a V-shaped, U-shaped or other shape in cross section. is connected to the sealing portion 34, and when the lid is closed, the compressing portion 33 contacts the inner pot 2 and presses against the opening of the inner pot 2. 4, and in the closed state, the open end of the cavity 4 is sealed to form the cavity 4 into a sealed cavity 5 isolated from the outside. On the one hand, when the rice is cooked or kept warm, the air inside the sealed cavity 5 does not flow, so that the sealed cavity 5 is isolated from the hot and humid environment of the inner pot 2 and the external low temperature environment, so that the sealed cavity 5 has a medium and high temperature environment. formed to reduce the heat conduction between the low temperature environment outside the inner pot 2 and the high temperature environment inside the inner pot 2, improve the heat preservation effect, and eliminate the temperature difference between the hot and humid environment of the inner pot 2 and the sealed cavity 5 is also smaller than when the cavity 4 of the prior art is not closed, thereby reducing the amount of condensed water formed and the size of the condensed water droplets; on the other hand, after forming the sealed cavity 5, It can reduce the contact area between the seal ring 3 and the hot and humid environment in the inner pot 2, further reduce the amount of condensed water formed, and solve the problem of condensed water flowing into the housing cover and lid plate.

When the lid 1 is closed, the compression part 33 is in close contact with the opening of the inner pot 2. In the related art, a horizontally provided horizontal part is connected to the lower end of the compression part 33, and the horizontal part is sealed. After the portion 34 is further connected and the lid 1 is closed, the horizontal portion is closely attached to the opening of the inner pot 2 and the sealing portion 34 seals the cavity 4 formed by the compression portion 33 and the support portion 32 . In the present application, by increasing the amount of compression of the seal ring 3 from the open state to the closed state, the compression portion 33 can be brought into close contact with the opening of the inner pot 2 and directly connected to the seal portion 34. , there is no need to install a horizontal part, which simplifies the structure of the seal ring 3 and reduces the cost of the seal ring 3;

As shown in FIGS. 3 and 4, the seal ring 3 includes a connection portion 31, a support portion 32, a compression portion 33 and a seal portion 34, which are connected in order, the connection portion 31 being connected to the lid 1, the support portion 32 slopes upward along the direction from the outside to the inside, and the compression portion 33 slopes gradually downward along the direction from the outside to the inside, thereby forming a connection point between the support portion 32 and the compression portion 33. When the lid is closed, the seal portion 34 moves toward the opening end of the cavity 4, and when the lid is closed, the seal portion 34 moves toward the opening end of the cavity 4. is sealed, and the compression part 33 is brought into close contact with the inner pot 2.

As shown in FIGS. 3 and 4, the compression amount (ba) of the seal ring 3 from the open state to the closed state is preferably 2 mm to 10 mm.

When the lid body 1 is closed, the seal ring 3 comes into contact with the inner pot 2 and presses against the inner pot 2, and the seal ring 3 is compressed by the action of the inner pot 2, so that the seal portion 34 is brought into contact with the opening end of the cavity 4. It moves toward and seals the open end of the cavity 4 . From the open state to the closed state, the compression amount of the seal ring 3 is 2 mm to 10 mm, so that in the closed state, the seal ring 3 has a certain interference after forming the sealed cavity 5. In addition, it is possible to prevent the closing force of the lid body from being too large due to the amount of compression of the seal ring 3 being too large. The amount of compression of the seal ring 3 is preferably 3 mm to 5 mm. The amount of compression of the sealing ring 3 may be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.

At least a portion of the seal portion 34 is preferably in close contact with the inner pot 2 when the lid is closed.

When the lid is closed, the compressing portion 33 is in close contact with the inner pot 2, and at least a part of the sealing portion 34 is in close contact with the inner pot 2, so that the seal ring 3 is in contact with the hot and humid environment on the side of the inner pot 2. The contact area is further reduced and the amount of condensate formed is further reduced. A portion of the seal portion 34 near the compression portion 33 is preferably in close contact with the inner pot 2 .

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 lid 1 to form an extension portion 35, and the extension portion 35 is brought into close contact with the lower surface of the lid 1 to close the lid. In the lid state, it is preferable that the seal portion 34 is brought into contact with the extension portion 35 .

The inner surface of the lower end of the connecting portion 31 or the inner surface of the connecting portion between the connecting portion 31 and the support portion 32 extends inward to form an extending portion 35, which further improves the sealing effect with respect to the lid 1. Preferably, the extension 35 slopes downward along the direction from outside to inside. In the closed state, the sealing portion 34 abuts against the extension 35 to form the sealed cavity 5 .

As shown in FIG. 4, the distance W from the contact point between the seal portion 34 and the extending portion 35 to the free end of the extending portion 35 is preferably 0 mm to 3 mm.

When the lid is closed, it is preferable that the distance from the contact point between the seal portion 34 and the extending portion 35 to the free end of the extending portion 35 is as small as possible. The contact area can be reduced and the formation of condensed water can be further reduced. Ideally, the distance from the point of contact between the seal portion 34 and the extending portion 35 to the free end of the extending portion 35 is 0 mm. In practical applications, the distance from the abutment point between the sealing portion 34 and the extending portion 35 to the free end of the extending portion 35 may be 0 mm, 1 mm, 2 mm, or 3 mm.

As shown in FIG. 5, it is preferable that the thickness c of the support portion 32 is larger than the thickness d of the compression portion 33 .

Since the thickness of the support part 32 is larger than the thickness of the compression part 33, the compression part 33 is deformed before the support part 32 when the lid is closed, and the compression part 33 is in close contact with the opening of the inner pot 2 when the lid is closed. In addition, in the process of deformation of the compressed portion 33 , the seal portion 34 is interlocked and bends upward to seal the open end of the cavity 4 .

A difference (cd) between the thickness of the support portion 32 and the thickness of the compression portion 33 is preferably 0.1 mm to 0.3 mm.

Since the difference obtained by subtracting the thickness of the compressed portion 33 from the thickness of the support portion 32 is 0.1 mm or more, it is possible to ensure that the compressed portion 33 is deformed before the support portion 32, and the thickness of the support portion 32 is reduced. The difference obtained by subtracting the thickness of the compressed portion 33 from the thickness is 0.3 mm or less, thereby avoiding that the thickness of the support portion 32 is too large or the thickness of the compressed portion 33 is too small.

As shown in FIG. 3, when the lid is open, the included angle α between the support portion 32 and the horizontal surface is preferably larger than the included angle β between the compression portion 33 and the horizontal surface. 33 is deformed before the support part 32. When the lid is closed, the compression part 33 is in close contact with the opening of the inner pot. Seal the open end. Here, the lid open state is a state in which the seal ring 3 is not compressed and the lid body of the cooking utensil is horizontally arranged.

When the lid is open, the included angle α between the support portion 32 and the horizontal surface is 42° to 60°, and/or when the lid is open, the included angle β between the compression portion 33 and the horizontal surface is 30° to 48°, And/or, when the lid is open, the difference (α-β) between the included angle between the support portion 32 and the horizontal plane and the included angle between the compressed portion 33 and the horizontal plane is preferably 5° or more.

When the lid is open, the included angles between the support portion 32 and the horizontal plane are 42°, 45°, 50°, 55°, and 60°, and when the lid is open, the included angles between the compression portion 33 and the horizontal plane are 30° and 35°. , 40°, 45°, 48°.

As shown in FIG. 3, the seal portion 34 is preferably provided horizontally.

When the lid is open, the seal portion 34 is provided horizontally. When the lid is closed, the compression portion 33 is compressed, and the seal portion 34 moves in conjunction with the opening end of the cavity 4 to seal the sealed cavity 4. .

Preferably, the seal ring 3 further includes a contact portion 36 positioned between the connection portion 31 and the support portion 32 and in close contact with the lower surface of the lid 1 .

The seal ring 3 further includes a contact portion 36 , one end of which is connected to the connection portion 31 , and the other end of which is connected to the support portion 32 . The contact portion 36 is in close contact with the lower surface of the lid 1, and the compression portion 33 is easily compressed when the lid is closed. Preferably, the connection portion 31 extends to form an extension portion 35 , or the connecting portion between the connection portion 31 and the contact portion 36 extends to form an extension portion 35 . It is preferable that the contact portion 36 is provided horizontally.

As shown in FIGS. 7 to 10, the seal ring 3 is provided with ribs, and when the lid is closed, the ribs abut against the inner wall surface of the sealed cavity 5, or the ribs abut between the seal portion 34 and the cavity 4. It is preferably located at the contact point and the rib is compressed.

When the lid is closed, the sealing portion 34 abuts against the cavity 4 to seal the open end of the cavity 4 and form the cavity 4 as a sealed cavity 5 isolated from the outside. When the lid is opened, the acting force of the negative pressure in the sealed cavity 5 is greater than the opening force of the seal ring 3, so the sealed cavity 5 may not be able to be opened, and cannot be restored to its original shape, thus opening the lid. Sometimes, the sealing ring 3 cannot contain the condensed water on the lid 1. In order to prevent the sealing cavity 5 from being unopened, the sealing ring 3 is provided with ribs, and in the process of forming the sealing cavity 5 from the open state to the closed state, the ribs are compressed and closed. In this state, the rib abuts against the inner wall surface of the sealed cavity 5, or the rib is positioned at the abutment point between the seal portion 34 and the cavity 4, so that when the lid is opened, the rib is not affected by the opening force of the seal ring 3. Since the acting force of the rib plus the opening force of the seal ring 3 is larger than the acting force of the negative pressure, the purpose of returning the seal ring 3 to its normal state after the lid is opened can be realized. The sealing ring 3 may be provided with one or more ribs, and when the plurality of ribs is provided, it is preferred that the plurality of ribs be evenly arranged on the sealing ring 3 .

As for the position of the rib, one end of the rib is connected to the seal portion 34 or the wall surface of the cavity 4, or is connected to the connection point between the connection portion 31 and the support portion 32, and when the lid is closed, the other end of the rib is connected to the sealed cavity. 5, and the ribs are compressed, so that when the lid is opened, the ribs repel and provide a favorable force to open the sealed cavity 5, or when the lid is closed, the ribs are sealed. 6. The abutting portion is located at the abutting portion between the portion 34 and the cavity 4 (the abutting portion is indicated by E in FIG. 6). That is, the rib is positioned between the seal portion 34 and a portion of the cavity 4 that contacts the seal portion 34 when the lid is closed, and the seal portion 34 of the rib and the cavity 4 When the lid is opened, the ribs can repel and provide an advantageous working force to open the sealed cavity 4 . Of course, the ribs can be provided in other positions as long as the ribs are compressed when forming the sealed cavity 5 and can provide an advantageous force to open the sealed cavity 5 when the lid is opened.

As shown in FIGS. 3, 6, and 7-10, the ribs include a first rib 343 provided on the seal portion 34 and/or a second rib 351 provided on the extension portion 35. is preferred.

The seal portion 34 is connected to the lower end of the compression portion 33 . On the inner surface of the lower end of the connecting portion 31 or the inner surface of the connecting portion between the connecting portion 31 and the support portion 32, an extending portion 35 is formed to extend in a direction approaching the axis of the lid 1. The extending portion 35 extends toward the lid 1. Preferably, extension 35 slopes downward along the out-to-in direction. In the closed state, the seal portion 34 abuts the extension portion 35 to form the sealed cavity 5 . To ensure that the ribs are easily compressed in the closed state, the ribs are formed by first ribs 343 on the seal portion 34 and/or second ribs 351 on the extension portion 35. , and the second rib 351 is located at a contact portion of the extension portion 35 with the seal portion 34 . Preferably, the first rib 343 is provided on the upper surface of the seal portion 34 and the second rib 351 is provided on the lower surface of the extension portion 35 . Of course, the ribs can also be provided in other positions, as long as the ribs are compressed when forming the sealed cavity 5 and can provide an effective force to open the sealed cavity 5 when the lid is opened. .

Regarding the situation where the ribs are positioned within the sealed cavity 5, for example, the support portion 32 is provided with ribs projecting toward the compression portion 33, and when the lid is closed, the ribs abut against the compression portion 33 and compress the compression portion. It will be in a state where

As shown in FIGS. 5 and 6, the sealing portion 34 is different from the first embodiment in that it is inclined in a direction approaching the opening end of the cavity 4. FIG.

In the open state, the seal portion 34 is gradually inclined upward along the direction from the outside to the inside, so that the amount of compression of the seal ring 3 from the open state to the closed state can be reduced. When the seal portion 34 is inclined toward the open end of the cavity 4, the compression amount of the seal ring 3 is mn from the open state to the closed state.

In the closed state, the seal portion 34 abuts against the support portion 32, that is, in the closed state, the seal portion 34 abuts against the support portion 32 to form the sealed cavity 5. 2 different.

The ribs preferably include a first rib 343 provided on the seal portion 34 and/or a second rib 351 provided at a contact portion of the support portion 32 with the seal portion 34 .

The seal portion 34 is connected to the lower end of the compression portion 33, and when the lid is closed, the seal portion 34 abuts the support portion 32, and the rib is the first rib 343 provided on the seal portion 34 and/or the support portion. It includes a second rib provided at the contact portion of the portion 32 with the seal portion 34 . In the closed state, the seal portion 34 abuts the support portion 32 to form the sealed cavity 5 . The ribs include a first rib 343 provided on the seal portion 34 and/or a second rib provided on the support portion 32 to ensure that the ribs are easily compressed in the closed state, In addition, the second rib is positioned at a contact portion of the support portion 32 with the seal portion 34 . Preferably, the first rib 343 is provided on the upper surface of the seal portion 34 and the second rib is provided on the lower surface of the support portion 32 . Of course, the ribs can also be provided in other positions, provided that the ribs are compressed when forming the sealed cavity 5 and can provide a favorable force to open the sealed cavity 5 when the lid is opened. good.

In the lid closed state, the seal portion 34 abuts on the connection portion between the connection portion 31 and the support portion 32, that is, the seal portion 34 abuts on the connection portion between the connection portion 31 and the support portion 32 to seal. It differs from the first and second embodiments in that a cavity 5 is formed.

The ribs preferably include a first rib 343 provided on the seal portion 34 and/or a second rib provided at the connecting portion between the support portion 32 and the connection portion 31 .

The seal portion 34 is connected to the lower end of the compression portion 33, and when the lid is closed, the seal portion 34 abuts on the connecting portion between the support portion 32 and the connection portion 31, and the rib is provided on the first seal portion 34. It includes a rib 343 and/or a second rib provided at the connection point between the support portion 32 and the connection portion 31 . In the closed state, the sealing portion 34 abuts on the connecting portion between the supporting portion 32 and the connecting portion 31 to form the sealed cavity 5 . In order to ensure that the ribs are easily compressed when the lid is closed, the ribs are provided at the first ribs 343 provided on the seal portion 34 and/or at the connection points between the support portion 32 and the connection portion 31. A second rib 351 is positioned at a contact portion with the seal portion 34 at the connection portion between the support portion 32 and the connection portion 31 . It is preferable that the first rib 343 is provided on the upper surface of the seal portion 34 and the second rib 351 is provided on the lower surface of the connecting portion between the support portion 32 and the connecting portion 31 . Of course, the ribs can also be provided in other positions, provided that the ribs are compressed when forming the sealed cavity 5 and can provide a favorable force to open the sealed cavity 5 when the lid is opened. good.

The difference from the first and second embodiments is that the seal portion 34 is brought into contact with the lid body 1 when the lid is closed.

A sealing portion 34 abuts against the lower surface of the lid 1 to form a sealed cavity 5 . Preferably, the seal ring 3 is connected to the movable cover plate and the seal portion 34 abuts against the lower surface of the movable cover plate to form the sealed cavity 5 .

Preferably, the ribs are located on the seal portion 34 .

A seal portion 34 is connected to the lower end of the compression portion 33 , and when the lid is closed, the seal portion 34 contacts the lid body 1 and the rib is located on the seal portion 34 . In the closed state, the seal portion 34 abuts against the lid 1 to form a sealed cavity 5 . When the lid is closed, the seal portion 34 moves toward the lid body 1 and comes into contact with the lid body 1, and ribs are provided on the seal portion 34, preferably on the upper surface of the seal portion 34. During the closing process, the ribs are compressed, and when the lid is opened, the ribs release elastic energy, and the combined force of the rib action force and the opening force of the seal ring 3 opens the sealed cavity 5 . Of course, the ribs may be provided on the support part 32 and/or the compression part, and the position and size of the ribs may be set rationally so that the ribs are compressed when forming the sealed cavity 5 and when the lid is opened. can provide an effective force to open the sealed cavity 5 .

A cooking utensil provided in an embodiment of the second aspect of the present invention comprises a pot body having an inner pot 2, a lid body 1 covering the pot body, and a seal ring according to any one of the above embodiments. 3, and the connecting portion 31 of the seal ring 3 is connected to the lid 1.

The cookware provided in the embodiment of the second aspect of the invention includes the sealing ring 3 as described in the embodiment of the first aspect and thus has all the beneficial effects of the sealing ring 3 of the first aspect.

As shown in FIGS. 11 to 13, one end of the seal portion 34 away from the connection portion 31 protrudes upward to form a protrusion 342, which is used to reinforce the strength of the seal portion 34. When the lid is closed, the seal portion 34 is in close contact with the upper surface of the inner pot 2 and does not protrude from the inner wall surface of the inner pot 2 , and the projections 342 close the cavity 4 to make the cavity 4 into the sealed cavity 5 . preferably formed.

When the lid is closed, the seal portion 34 is in close contact with the upper surface of the inner pot 2 to achieve sealing between the inner pot 2 and the lid body 1 . A protrusion 342 is provided at one end of the seal portion 34 away from the connecting portion 31 (end of the seal portion 34) so as to reinforce the strength of the seal portion 34. The seal part 34 and the upper surface of the inner pot 2 are prevented from being in good contact due to the warping, wherein the seal part 34 includes a seal body 341 and a protrusion 342 formed by protruding the end of the seal body 341. , the protrusion 342 can be understood to be used to reinforce the strength of the seal body 341 . When the lid is closed, the protrusion 342 seals the open end of the cavity 4, forming the cavity 4 into a sealed cavity isolated from the outside. When the lid is closed, the protrusion 342 seals the open end of the cavity 4 to form a sealed cavity 5 in the cavity 4 isolated from the outside. When the lid is closed, in addition to the compressed portion closely contacting the upper surface of the inner pot, the sealing portion 34 also contacts the upper surface of the inner pot 2 and the sealing portion 34 is flush with the inner wall surface of the inner pot 2, or Since the seal portion 34 is positioned outside the inner wall surface of the inner pot 2, that is, the seal portion 34 does not protrude from the inner wall surface of the inner pot 2, the seal portion 34 does not come into contact with the hot and humid environment inside the inner pot 2, No condensed water is generated in the seal part 34, and only the protrusions 342 of the seal ring 3 are in contact with the hot and humid environment inside the inner pot 2. Therefore, the contact area is very small, and even if there is a certain temperature difference, To solve the problem that condensed water flows to a housing cover and a movable cover plate because the generated condensed water droplets are small in size and in a small amount.

As shown in FIG. 3, it is preferable that 0.5T≦H≦2T, where H is the height of the protrusion 342 and T is the thickness of the seal portion 34 .

By setting 0.5T≤H≤2T, it is possible to ensure a good reinforcing effect of the projection 342 on the seal portion 34 (seal body 341), and at the same time, the height of the projection 342 is reduced because the projection 342 is too high. To avoid that the contact area with the hot and humid environment inside the inner pot 2 is too large to increase the amount of condensed water formed.

Preferably H=0.5T, or H=T, or H=1.5T, or H=2T.

The protrusion 342 is preferably perpendicular to the seal portion 34 (seal body).

The protrusion 342 is perpendicular or substantially perpendicular to the seal portion 34 (seal body 341), that is, the connecting portion between the protrusion 342 and the seal portion 34 is L-shaped. The seal portion 34 (seal body 341) is in close contact with the upper surface of the inner pot 2, and the protrusion 342 is perpendicular or nearly perpendicular to the seal portion 34 (seal body 341) when the cavity 4 is closed. The length of the projection 342 can be reduced, the contact area of the seal ring 3 with the hot and humid environment inside the inner pot 2 is reduced, and the reinforcement effect of the seal body 341 is good.

In the first specific embodiment, when the lid is closed, the protrusion 342 abuts the lid 1 , the support portion 32 , or the connecting portion between the support portion 32 and the connection portion 31 .

A protrusion 342 is connected to the end of the seal body 341, in the closed state, the protrusion 342 abuts the lid 1 to form the sealed cavity 5, and in the closed state, only the outer surface of the protrusion 342 is , contact with the hot and humid environment inside the inner pot 2 . Alternatively, the protrusion 342 abuts the support portion 32 to form the sealed cavity 5 . Alternatively, the protrusion 342 abuts on the connecting portion between the support portion 32 and the connecting portion 31 to form the sealed cavity 5, preferably the protrusion 342 and the connecting portion between the supporting portion 32 and the connecting portion 31 abut against each other. The contact position should be rationalized, the portion of the support part 32 inside the inner pot 2 should be reduced as much as possible, and the contact area between the support part 32 and the inner pot 2 should be reduced. be.

In a second specific embodiment, 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 lid 1 to form an extension portion 35, and the extension portion 35 is It adheres tightly to the lower surface of the lid 1, and the protrusion 342 is brought into contact with the extending portion 35 when the lid is closed.

When the lid is closed, the sealing portion 34 abuts against the extending portion 35 to form the sealed cavity 5 . , and the extension 35 is in close contact with the lower surface of the lid 1. Preferably, the lid 1 includes a movable lid plate, and the extension 35 contacts the lower surface of the movable lid plate. , the protrusion 342 is connected to the end of the seal body 341 , and the protrusion 342 abuts the extending portion 35 in the closed state.

As shown in FIG. 4, the distance W from the contact point between the projection 342 and the extending portion 35 to the free end of the extending portion 35 is preferably 0 mm to 3 mm.

In the closed state, the seal portion 34 is provided along the horizontal direction, or as shown in FIG. 1 slanted surface 344 is formed, and a second slanted surface 221 matching the first slanted surface 344 is formed on the upper surface of the inner pot 2 at a location corresponding to the first slanted surface 344. preferable. When the lid is closed, the seal portion 34 is provided along the horizontal direction or forms a first inclined surface 344. When the lid is opened, the seal portion 34 is provided along the horizontal direction or forms a first inclined surface 344. 34 is formed with a first inclined surface 344, or the seal portion 34 is provided along another direction, and in the closed state, is provided along the horizontal direction by the force of closing the lid, or is provided along the first A sloped surface 344 is formed.

When the lid is closed, the seal portion 34 is provided horizontally, and the portion of the upper surface of the inner pot 2 in close contact with the seal portion 34 may be a horizontal surface, or an inclined surface that slopes upward or downward from the inside to the outside. , and by adjusting the amount of compression of the seal ring 3 or the like in the closed state, it is ensured that at least a part of the seal portion 34 is in close contact with the upper surface of the inner pot 2 . Alternatively, when the lid is closed, the sealing part 34 is inclined upward along the direction from the outside to the inside to form a first inclined surface 344, and the upper surface of the inner pot 2 is well adhered to the first inclined surface 344. In order to ensure that it is 1 coincides with the inclination angle of the inclined surface 344 . When the sealing portion 34 is inclined upward along the direction from the outside to the inside in the closed state to form the first inclined surface 344, the sealing portion 34 is provided along the horizontal direction in the opened state. Or, the sealing portion 34 slopes upward along the direction from outside to inside. Of course, in the seal ring, only the seal portion 34 may be in close contact with the pot rim 32 (as shown in FIG. 11), or both the seal portion 34 and the compression portion may be in close contact with the pot rim 32 (as shown in FIG. 12). show).

As shown in FIGS. 11 to 13, the inner pot 2 includes a pot body 21 and a pot rim 32 formed by extending the pot body 21 to the outer periphery. It is preferable not to protrude from the outer edge of the connecting portion between and the pot edge 32 . The pot rim 32 may be installed on the pot body 21, or the pot rim 32 may not be installed. Since the sealing portion 34 does not protrude from the inner wall surface of the inner pot 2 because it includes the wall surface and the connecting portion between the pot body 21 and the pot rim 32, the sealing portion 34 does not protrude from the connecting portion between the pot body 21 and the pot rim 32. It should not protrude from the outer edge of the

In order to ensure that the sealing portion 34 does not come into contact with the hot and humid environment inside the inner pot 2 when the lid is closed, the sealing portion 34 does not protrude from the outer edge of the connection between the pot body 21 and the pot rim 32, namely The seal portion 34 is flush with the outer edge of the connecting portion between the pot body 21 and the pot rim 32 or positioned outside the outer line of the connecting portion between the pot body 21 and the pot rim 32 . As shown in FIG. 14, the seal protrudes inward from the outer edge of the connecting portion between the pot body and the pot rim so that part of the seal portion is positioned inside the inner pot, and the seal ring is positioned inside the inner pot. Increase contact area with hot and humid environment.

As shown in FIGS. 11 to 13, a transitional arc portion 23 is provided at the connection point between the pot body 21 and the pot rim 32, and the seal portion 34 does not protrude from the outer edge of the transitional arc portion 23 when the lid is closed. is preferred.

Of course, it is not necessary to install the transitional arc part 23 at the connection point between the pot body 21 and the pot rim 32, and the connection point between the pot body 21 and the pot rim 32 becomes a right angle. The seal part 34 does not protrude from the right-angled connecting part between the pan body 21 and the pan rim 32. - 特許庁

Preferably, the lid body 1 includes an inner lid, a movable lid plate is detachably attached to the inner lid by a clamp ring 6 , and the movable lid plate is positioned inside the clamp ring 6 . The seal ring 3 is fixed by the clamp ring 6 and the movable cover plate, specifically, the connecting part 31 is press-fitted or clamped between the movable cover plate and the clamp ring 6 . Since the method of attaching the seal ring 3 to the lid body 1 is a mature technique, detailed description thereof will be omitted here.

A cooking appliance is a rice cooker or an electric pressure cooker.

As described above, according to the seal ring 3 provided in the embodiment of the present invention, when the lid is closed, the compression portion is in close contact with the inner pot, and the seal portion is interlocked and moves in the direction approaching the opening end of the cavity, and the lid is closed. , the seal seals the open end of the cavity to form a sealed cavity. As compared with the related art in which the seal portion used to seal the cavity is separately installed, the amount of compression can be increased and the cavity can be sealed with the seal portion provided by the main body of the seal ring 3, so the seal ring 3 After simplifying the structure of and forming a sealed cavity, the formation of condensed water is reduced.

The present invention is not only indicated by the appended claims, but is also limited by the following.

1. A seal ring used in a cooking utensil including a pot body having an inner pot and a lid body covered by the pot body, the seal ring comprising: a connection part connected to the lid body; and a seal ring connected to the connection part, a deforming portion forming an inwardly opening cavity; and a sealing portion provided close to the opening end of the cavity and sealing the opening end of the cavity to form the cavity into a sealed cavity when the lid is closed. , wherein the seal ring is provided with a rib, and when the lid is closed, the rib abuts against the inner wall surface of the sealed cavity, or the rib is located at the abutment point between the seal portion and the cavity. , and the rib is compressed.

2. According to the seal ring described in item 1, the seal portion is connected to the lower end of the deformable portion, the seal portion abuts the lid in the closed state, and the rib is positioned on the seal portion.

3. According to the seal ring described in item 1, the seal portion is connected to the lower end of the deformation portion, the seal portion abuts the deformation portion in the closed state, and the rib is provided on the seal portion. It includes a first rib and/or a second rib provided at a contact portion of the deformation portion with the seal portion.

4. According to the seal ring described in item 1, the seal portion is connected to the lower end of the deformation portion, and in the lid closed state, the seal portion abuts on the connection portion between the deformation portion and the connection portion, and the rib includes a first rib provided on the seal portion and/or a second rib provided at a connecting portion between the deformable portion and the connecting portion.

5. According to the seal ring according to item 1, the connecting portion or the connecting portion between the connecting portion and the deformation portion extends in a direction approaching the axis of the lid body to form an extension portion, and the extension portion forms the extension portion. The sealing portion is in close contact with the lower surface of the lid, the sealing portion is connected to the lower end of the deforming portion, the sealing portion abuts the extending portion in the closed state, and the rib is a first opening provided on the sealing portion. and/or a second rib provided on the extension.

6. According to the seal ring according to items 2 to 5, the deformation portion includes a support portion and a compression portion connected to the lower end of the support portion, the seal portion is connected to the lower end of the compression portion, The support portion slopes upward along the direction from outside to inside, and the compression portion slopes downward gradually along the direction from outside to inside.

7. According to the seal ring described in Item 6, the compressing portion contacts the inner pot when the lid is closed.

8. According to the seal ring according to item 6, the deformation section further includes a deformation section connected between the compression section and the seal section, and the deformation section contacts the inner pot when the lid is closed. touch.

9. According to the seal ring described in Item 1, the seal portion is connected to the upper end of the deformable portion or to the connecting portion between the deformable portion and the connecting portion, and in the closed state, the seal portion is connected to the deformable portion. and the rib includes a first rib provided on the seal portion and/or a second rib provided at a contact location between the deformation portion and the seal portion, or
The seal portion is connected to an upper end of the deformable portion or to a connecting portion between the deformable portion and the connecting portion, and in a closed state, the seal portion abuts the inner pot, and the rib is provided on the seal portion. be done.

10. A cooking utensil comprising a pot body having an inner pot, a lid body covering the pot body, and the seal ring according to any one of the above items, wherein the connection portion of the seal ring is the above Connected to the lid.

11. A cooking utensil comprising a pot body having an inner pot, a lid body covering the pot body, and a seal ring connected to the lid body, wherein the seal ring is a connected connection portion and a deforming portion, wherein the connecting portion is connected to the lid body, the deforming portion forms an inwardly opening cavity, the deforming portion includes a seal portion remote from the connecting portion, the seal One end of the portion remote from the connection portion protrudes upward to form a protrusion, and the protrusion is used to reinforce the strength of the deformed portion, and when the lid is closed, the seal portion extends from the inner portion. It is closely attached to the upper surface of the pot and does not protrude from the inner wall surface of the inner pot, and the projection closes the cavity, thereby forming the cavity into a sealed cavity.

12. According to the cooking utensil described in item 11, 0.5T≤H≤2T, H is the height of the protrusion, and T is the thickness of the deformed portion.

13. According to the cooking utensil according to item 11, the projection is perpendicular to the sealing portion.

14. According to the cooking utensil according to any one of items 11 to 13, when the lid is closed, the protrusion abuts against the lid, or abuts against the deformation portion, or the deformation portion and the connection portion abut on the connection point with

15. According to the cooking utensil according to any one of items 11 to 13, the connecting portion or the connecting portion between the connecting portion and the deforming portion extends in a direction approaching the axis of the lid body to form an extending portion. The extending portion is in close contact with the lower surface of the lid body, and the projection abuts on the extending portion when the lid is closed.

16. According to the cooking utensil described in item 15, the distance from the abutment point between the projection and the extension to the free end of the extension is 0 mm to 3 mm.

17. According to the cooking utensil according to any one of items 11 to 13, the deformation section further includes a support section and a compression section that are connected, and the support section is connected to the connection section and externally It slopes upward along an inward direction, and the compressing portion slopes downward gradually along an outward-to-inward direction.

18. According to the cooking utensil described in item 17, when the lid is closed, the compressed portion is in close contact with the upper surface of the inner pot.

19. According to the cookware according to any one of items 11 to 13, when the lid is closed, the seal portion is provided along the horizontal direction, or when the lid is closed, the seal portion extends from the outside to the inside. to form a first slanted surface along the direction of , and a second slanted surface conforming to the first slanted surface is provided on the upper surface of the inner pot at a location corresponding to the first slanted surface. is formed.

20. According to the cookware according to any one of items 11 to 13, the inner pot includes a pot body and a pot rim formed by extending the pot body to the outer periphery, and when the lid is closed, the The seal portion does not protrude from the outer edge of the connecting portion between the pot body and the pot rim.

21. According to the cooking utensil described in Item 20, a transitional arc portion is provided at a connecting portion between the pot body and the pot rim, and the seal portion does not protrude from the outer edge of the transitional arc portion when the lid is closed. .

In the description herein, the term "plurality" refers to two or more. Unless otherwise specified or explained, the terms "connection", "fixed", etc. should be understood broadly, e.g., "connection" may be a fixed series or a removable connection. , or may be integrally connected, and may be directly connected or indirectly connected via an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific situation.

In the description of this specification, the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “rear”, “left”, “right” are the orientations or positional relationships shown in the drawings, It is not meant to represent or imply that the device or set shown is necessarily oriented in a particular orientation and has a particular oriented structure and operation, used only to facilitate or simplify the description of the present invention. should be understood and, therefore, not to be considered a limitation on the invention.

In the description of this specification, terms such as "one embodiment", "some embodiments", and "specific examples" refer to specific features or structures described in the example or example. , materials or features are intended to be included in at least one embodiment or example of the invention. In this specification, exemplary descriptions of the term do not necessarily refer to the same embodiment or illustration. Moreover, the specific features, structures, materials or features described may be combined in any suitable manner in any one or more embodiments or illustrations.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and changes can be made to the present invention by those skilled in the art. All modifications, replacements, improvements, etc. within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

1' Lid 2' Inner pot 3' Seal ring 1 Lid 2 Inner pot 21 Pot main body 22 Pot rim 221 Second inclined surface 23 Transitional arc portion 3 Seal ring 31 Connection portion 32 Support portion 33 Compression portion 34 Seal portion 341 Seal main body 342 Projection 343 First rib 344 First inclined surface 35 Extended portion 351 Second rib 36 Close contact portion 4 Cavity 5 Sealed cavity 6 Clamp ring

Claims (20)

A seal ring used in a cooking utensil including a pot body having an inner pot and a lid body covering the pot body,
comprising a connection portion, a support portion, a compression portion and a seal portion connected in sequence;
The connection part is connected to the lid body, the support part is inclined upward along the direction from the outside to the inside, and the entire compression part is inclined downward gradually along the direction from the outside to the inside. , a cavity opening inward is formed at a connecting portion between the support portion and the compression portion;
When the lid is closed, the seal portion moves toward the open end of the cavity, and in the closed state, the seal portion seals the open end of the cavity, thereby forming the cavity into a sealed cavity. A seal ring, wherein the entire compression portion is in close contact with the inner pot. 2. The seal ring according to claim 1, wherein the amount of compression of said seal ring is 2 mm to 10 mm from the lid open state to the lid closed state. 2. The seal ring according to claim 1, wherein at least part of said seal portion is in close contact with said inner pot when the lid is closed. The connection portion or the connection portion between the connection portion and the support portion extends in a direction approaching the axis of the lid to form an extension portion, and the extension portion is in close contact with the lower surface of the lid,
The seal ring according to any one of claims 1 to 3, wherein the seal portion abuts against the extension portion in a closed state. 5. The seal ring according to claim 4, wherein the distance from the contact point between the seal portion and the extending portion to the free end of the extending portion is 0 mm to 3 mm. When the lid is closed, the seal portion abuts the support portion, or when the lid is closed, the seal portion abuts a connecting portion between the connection portion and the support portion, or when the lid is closed, The seal ring according to any one of claims 1 to 3, wherein the seal portion abuts on the lid body. The seal ring according to any one of claims 1 to 3, wherein the thickness of the support portion is greater than the thickness of the compression portion. 8. The seal ring according to claim 7, wherein the thickness difference between the support portion and the compression portion is 0.1 mm to 0.3 mm. The seal ring according to any one of claims 1 to 3, wherein an included angle between the support portion and the horizontal surface is larger than an included angle between the compression portion and the horizontal surface when the lid is open. When the lid is open, the included angle between the support portion and the horizontal plane is 42° to 60°, and/or when the lid is open, the included angle between the compression portion and the horizontal plane is 30° to 48°, and/ 10. The seal ring according to claim 9, wherein when the lid is open, the difference between the included angle between the support portion and the horizontal plane and the included angle between the compressed portion and the horizontal plane is 5° or more. The seal ring according to any one of claims 1 to 3, wherein the seal portion is provided horizontally, or the seal portion is inclined in a direction approaching the open end of the cavity. 4. The seal ring according to any one of claims 1 to 3, further comprising a contact portion positioned between the connection portion and the support portion and in close contact with the lower surface of the lid. A rib is provided on the seal ring, and when the lid is closed, the rib abuts against the inner wall surface of the sealed cavity, or the rib is located at a contact point between the seal portion and the cavity, and ribs are compressed,
When the sealing portion abuts against the lid body in a closed state, the rib is located on the sealing portion, or
When the seal portion abuts against the support portion in a closed state, the rib may be a first rib provided on the seal portion and/or a portion of the support portion that abuts against the seal portion. a second rib provided; or
When the sealing portion abuts on the connecting portion between the connecting portion and the supporting portion in the lid closed state, the rib may be a first rib provided on the sealing portion and/or the supporting portion. including a second rib provided at a connection point with the connection portion, or
The connection portion or the connection portion between the connection portion and the support portion extends in a direction approaching the axis of the lid to form an extension portion, and the extension portion is in close contact with the lower surface of the lid to close the lid. the rib includes a first rib provided on the seal portion and/or a second rib provided on the extension portion when the seal portion abuts on the extension portion in the state of Sealing ring according to any one of the preceding claims. a pot body having an inner pot;
a lid body covering the pot body;
and the seal ring according to any one of claims 1 to 13,
A cooking utensil, wherein the connecting portion of the seal ring is connected to the lid. One end of the seal portion remote from the connection portion protrudes upward to form a protrusion, and the protrusion is used to reinforce the strength of the seal portion,
When the lid is closed, the sealing part is in close contact with the upper surface of the inner pot and does not protrude from the inner wall surface of the inner pot, and the protrusion closes the cavity, thereby forming the cavity into a sealed cavity. 15. The cookware of claim 14, characterized by: 16. The cooking utensil according to claim 15, wherein 0.5T≤H≤2T, where H is the height of the protrusion and T is the thickness of the seal portion. 16. The cookware of claim 15, wherein said protrusion is perpendicular to said seal. When the lid is closed, the seal portion is provided along the horizontal direction, or when the lid is closed, the seal portion is inclined upward along the direction from the outside to the inside to form a first inclined surface. , wherein a second slanted surface conforming to the first slanted surface is formed on the upper surface of the inner pot at a location corresponding to the first slanted surface. A cookware according to any one of the preceding paragraphs. The inner pot includes a pot body and a pot rim formed by extending the pot body to the outer periphery, and when the lid is closed, the seal portion protrudes from the outer edge of the connecting portion between the pot body and the pot rim. The cooking utensil according to any one of claims 15 to 17, characterized in that it does not come out. 20. The method according to claim 19, wherein a transitional arc portion is provided at a connecting portion between the pot body and the pot rim, and the seal portion does not protrude from the outer edge of the transitional arc portion when the lid is closed. kitchenware.

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