Sealing structure of heating container and heating container

Abstract

The utility model discloses a heating container sealing structure and a heating container, the heating container sealing structure comprises a cavity and an upper cover, one end of the cavity is provided with an opening, and an annular sealing piece is arranged between the edge of the opening of the cavity and the upper cover; an annular sealing groove matched with the sealing piece is formed in the position, corresponding to the edge of an opening of the cavity, of the upper cover, a notch is formed in the side, facing the edge of the opening of the cavity, of the sealing groove, one end of the sealing piece extends from the notch to the interior of the sealing groove and is clamped in the sealing groove, and a conical structure narrowing from wide to narrow is formed. The other end of the sealing piece protrudes towards the opening edge of the cavity from the notch to form a sealing part, the sealing part is bent towards the middle of the upper cover from the side, close to the middle of the upper cover, of the notch to form an attaching structure sunken towards the opening edge of the cavity, and the upper cover abuts against the attaching structure of the sealing part in a matched mode. And the sealing piece is connected to the inner side of the edge of the opening of the cavity in an interference fit manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating container sealing, and particularly relates to a sealing structure of a heating container and the heating container. BACKGROUND

[0002] As an indispensable device in industrial production and daily life, the development history of heating containers can be traced back to ancient times. However, with the progress of science and technology and the development of industry, the design and manufacturing technology of heating containers are also constantly updated and upgraded. From the initial simple heating equipment to today's intelligent and efficient heating containers, its development process has gone through several stages. The sealing technology of the heating container is the key technology to ensure that the internal medium of the container does not leak during heating, insulation or storage. The sealing of the heating container not only relates to the heating and pressurizing effect, but also involves the service life and safety of the container. When selecting the sealing technology, factors such as medium properties, container structure, service life and maintenance cost need to be considered. With the progress of science and technology and the development of industry, the sealing technology of the heating container is also constantly innovating and developing to meet the needs of different fields and users.

[0003] The existing heating container uses a conventional sealing ring for sealing, and there is relative motion friction between the sealing ring and the end cover, the sealing effect is unstable, and the sealing ring is easily damaged, with a short service life. The Chinese patent with publication number CN213696469U discloses an intelligent constant temperature bowl, which solves the problem of low sealing performance of the detachable bowl through the comprehensive waterproof form of the multiple and multi-stage structure of the upper layer and the bottom, but does not solve the stability of the sealing and the protection of the sealing structure. SUMMARY

[0004] In view of the problems in the related art, the utility model provides a sealing structure of a heating container and a heating container, which fixes the sealing member in the upper cover by using the structure of the sealing member, fixes the direction of the pressure applied by the sealing member to the opening edge of the cavity, prevents the sealing member from changing the direction of the pressure or the contact position with the opening edge of the cavity due to the influence of the internal air pressure, and improves the stability of the sealing.

[0005] The utility model is implemented as follows:

[0006] A sealing structure of a heating container, comprising a cavity with an opening at one end, and an upper cover adapted to the opening of the cavity, and an annular sealing member provided between the opening edge of the cavity and the upper cover;

[0007] The upper cover is provided with an annular sealing groove corresponding to the sealing element at the position corresponding to the opening edge of the cavity, the side of the sealing groove facing the opening edge of the cavity is provided with a notch, one end of the sealing element extends into the sealing groove from the notch and is clamped in the sealing groove to form a tapered structure which becomes narrower from the wide end, the other end of the sealing element protrudes from the notch to the opening edge of the cavity to form a sealing part, the sealing part is bent from the side of the notch close to the middle of the upper cover to the direction of the middle of the upper cover to form a fitting structure which is recessed to the direction of the opening edge of the cavity, and the upper cover is abutted on the fitting structure of the sealing part to make the sealing element in interference fit with the inner side of the opening edge of the cavity.

[0008] Preferably, the sealing element comprises a sealing part and a tapered part, the tapered part being the tapered structure formed by the extension of the sealing element into the sealing groove from the notch.

[0009] The direction of the pressure generated by the extrusion of the sealing element to the opening edge of the cavity is perpendicular to the plane where the sealing element abuts against the opening edge of the cavity.

[0010] Specifically, the side of the tapered part close to the middle of the upper cover is bent to the direction of the middle of the upper cover to form a fitting structure which is recessed to the inner side of the opening edge of the cavity, and the fitting structure is arc-shaped. The upper cover extrudes the fitting structure of the sealing element to the inner side of the opening edge to maximize the stress and improve the sealing effect.

[0011] In the case that the sealing element does not deform, the direction of the pressure generated by the extrusion of the sealing element to the opening edge of the cavity is fixed, and the abutting position of the sealing element to the opening edge of the cavity is fixed.

[0012] Preferably, the outer side of the sealing element is provided with an annular groove recessed to the inside of the cavity, the annular groove is of the type of wide outside and narrow inside, and extends from the outer side between the tapered part and the sealing part to the position between the tapered part and the opening edge of the cavity.

[0013] Specifically, due to the space in the annular groove, the sealing element will protrude to the inside of the cavity after being extruded to form a pressure protruding to the inside of the cavity, which can offset the external pressure of the container to keep the structure of the sealing element balanced and form a good sealing effect.

[0014] Preferably, a plurality of reinforcing ribs are arranged around the sealing element and in the annular groove.

[0015] Specifically, the reinforcing rib is supported in the annular groove between the sealing part and the conical part; the reinforcing rib can avoid deformation of the annular groove on the outer side of the sealing part when the sealing part is pressed against the opening edge of the cavity, effectively reduce the permanent deformation amount in the case of long-term interference fit, and prolong the service life.

[0016] Preferably, the outward side of the sealing part is further provided with a plurality of clamping grooves extending from the narrow side of the conical part to the sealing part, and the clamping grooves are in communication with the annular groove.

[0017] Specifically, the design of the clamping groove can avoid deformation in the annular direction of the sealing part after being pressed, or deformation of the overall structure of the sealing part due to torsion caused by rotation.

[0018] Preferably, the part of the clamping groove corresponding to the narrow side of the conical part is an open end, and the open end has an inner-narrow-and-outer-wide structure.

[0019] Specifically, the open end of the clamping groove has a trumpet shape, and the open end has an inner-narrow-and-outer-wide structure, which can increase the deformation amount of the sealing part under force, improve the toughness of the structure of the sealing part, and avoid the effect of poor sealing due to deformation.

[0020] Preferably, the sealing groove is provided with a limiting piece corresponding to the clamping groove.

[0021] Specifically, the limiting piece is arranged in the clamping groove, mainly to prevent the rotation of the sealing part, thereby avoiding the influence on the sealing performance due to rotation, or the deformation of the sealing part caused by rotation.

[0022] Preferably, the conical structure of the sealing part is provided with a strip-shaped fixing groove on the side wall facing the middle part of the upper cover, the fixing groove extends annularly along the sealing part, and the side of the upper cover connected with the inner side wall of the conical structure of the sealing part is provided with a fixing strip corresponding to the fixing groove; the fixing strip is connected with the fixing groove.

[0023] Specifically, the connection of the fixing strip and the fixing groove can fix the sealing part in the sealing groove of the upper cover, preventing the sealing part from falling off when the upper cover is lifted.

[0024] Preferably, the upper cover is bent from the side of the notch close to the middle part of the upper cover to the middle part of the upper cover, forming an arc-shaped structure protruding towards the opening edge of the cavity.

[0025] Specifically, the upper cover is connected with the concave structure of the sealing part through the protruding arc-shaped structure; that is, the part of the upper cover connected with the sealing part has a corresponding structure.

[0026] A heating container applies the sealing structure of any one of the above heating containers.

[0027] Compared with the prior art, the utility model discloses the following beneficial effects:

[0028] The utility model provides a sealing structure and heating container of heating container, through the conical structure of sealing member is stuck in the upper cap, the cutting surface of sealing member is extruded to the inside of the opening edge of cavity, because sealing member utilizes the conical structure and fixes, makes its pressure direction fixed that is applied to the opening edge of cavity, and perpendicular with cutting surface, realizes sealing member fixed pressure on the cutting surface of the opening edge of cavity, changes with the pressure of the inside of cavity and changes the extruded pressure direction and the position and angle of cutting surface, avoids sealing member to produce deformation, reaches stable sealing effect, also makes stress realize maximization. Compared with traditional sealing structure, when receiving the pressure of the inside of container, the cutting surface and the angle of sealing structure and the opening edge of container can change, that is, seal through different contact surfaces, form a kind of face sealing form, relatively unstable, and the sealing structure provided in the application can make the cutting surface and the angle of sealing member and the opening edge of cavity not change with the change of internal pressure, that is, through fixed cutting surface and cutting surface angle, form a line sealing form, improve the stability of overall sealing and the service life of sealing structure. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is product schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment;

[0030] Figure 2 It is explosion structure schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment;

[0031] Figure 3 It is sectional structure schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment;

[0032] Figure 4 It is the upper cap structure schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment; Figure 3 It is the local enlarged structure schematic view of A portion in the utility model embodiment;

[0033] Figure 5 It is the upper cap structure schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment;

[0034] Figure 6 It is the upper cap structure schematic view of the sealing structure and heating container of a kind of heating container in the utility model embodiment;

[0035] Figure 7 It is sealing member structure schematic view of the sealing structure of a kind of heating container in the utility model embodiment one;

[0036] Figure 8 Figure 2 is a schematic view of a sealing member structure of a sealing structure of a heating container according to an embodiment of the present application;

[0037] Figure 9 Figure 3 is a schematic view of a cross-sectional structure of a sealing member of a sealing structure of a heating container according to an embodiment of the present application;

[0038] Figure 10 Figure 4 is a schematic view of another cross-sectional structure of a sealing member of a sealing structure of a heating container according to an embodiment of the present application.

[0039] Reference signs:

[0040] 101, cavity; 102, upper cover; 103, sealing groove; 104, fixing strip; 105, limiting member;

[0041] 201, sealing member; 202, tapered portion; 203, sealing portion; 204, fixing groove; 205, annular groove; 206, reinforcing rib; 207, clamping groove; 208, fitting structure. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] EMBODIMENT

[0044] As Figures 1 to 10 A sealing structure of a heating container and a heating container, comprising a cavity 101 provided with an opening at one end, and an upper cover 102 corresponding to the opening of the cavity 101, and a ring-shaped sealing member 201 is arranged between the opening edge of the cavity 101 and the upper cover 102;

[0045] The upper cover 102 is provided with an annular sealing groove 103 corresponding to the sealing member 201 at the position corresponding to the opening edge of the cavity 101, the sealing groove 103 is provided with a notch on the side towards the opening edge of the cavity 101, one end of the sealing member 201 extends into the sealing groove 103 from the notch and is clamped in the sealing groove 103, forming a tapered structure which becomes narrower from the wide end, the other end of the sealing member 201 protrudes from the notch to the opening edge of the cavity 101, forming a sealing portion 203, the sealing portion 203 is bent from the side close to the middle of the upper cover 102 towards the middle of the upper cover 102, forming a fitting structure 208 which is recessed towards the opening edge of the cavity 101, the upper cover 102 is abutted to the fitting structure 208 of the sealing portion 203, so that the sealing member 201 is in interference fit with the inside of the opening edge of the cavity 101.

[0046] The tapered structure of the sealing member 201 is provided with a strip-shaped fixing groove 204 on the side wall towards the middle of the inner upper cover 102, the fixing groove 204 extends annularly along the sealing member 201, one side of the upper cover 102 abutting to the inner side wall of the tapered structure of the sealing member 201 is provided with a fixing strip 104 corresponding to the fixing groove 204; the fixing strip 104 is in abutment with the fixing groove 204.

[0047] The abutment of the fixing strip 104 and the fixing groove 204 can fix the sealing member 201 in the sealing groove 103 of the upper cover 102, preventing the sealing member 201 from falling off when the upper cover 102 is picked up.

[0048] The upper cover 102 is bent from the side close to the middle of the upper cover 102 towards the middle of the upper cover 102, forming an arc-shaped structure protruding towards the opening edge of the cavity 101.

[0049] The upper cover 102 is in abutment with the recessed fitting structure of the sealing portion 203 through the protruding arc-shaped structure; that is, the part of the upper cover 102 abutting to the sealing member 201 is structurally corresponding.

[0050] The sealing member 201 includes a sealing portion 203 and a tapered portion 202, the tapered portion 202 is the tapered structure formed by the extension of the sealing member 201 into the sealing groove 103 from the notch;

[0051] The direction of the pressure generated by the extrusion of the sealing member 201 towards the opening edge of the cavity 101 is perpendicular to the plane where the sealing member 201 abuts to the opening edge of the cavity 101.

[0052] The conical part 202 is bent towards the middle part of the upper cover 102 at the position where the sealing part 203 is connected to one side of the middle part of the upper cover 102, forming a fitting structure 208 which is recessed towards the inside of the opening edge of the cavity 101, and the fitting structure 208 is arc-shaped. The upper cover 102 extrudes the fitting structure 208 of the sealing element 201 towards the inside of the opening edge, so that the stress is maximized and the sealing effect is improved.

[0053] In the case where the sealing element 201 does not deform, the direction of the pressure generated by the extrusion of the sealing element 201 towards the opening edge of the cavity 101 is fixed, and the abutting position of the sealing element 201 and the opening edge of the cavity 101 is fixed.

[0054] The outer side of the sealing element 201 is provided with an annular groove 205 which is recessed towards the inside of the cavity 101, and the annular groove 205 is of the type which is wide on the outside and narrow on the inside, extending from the outer side between the conical part 202 and the sealing part 203 towards the inside of the cavity 101 to the position between the conical part 202 and the opening edge of the cavity 101.

[0055] Due to the space in the annular groove 205, after the sealing element 201 is extruded, it will protrude towards the inside of the cavity 101, forming a pressure which protrudes towards the inside of the cavity 101, which can offset the external pressure of the gas in the container, so that the structure of the sealing element 201 remains balanced and a better sealing effect is achieved.

[0056] A plurality of reinforcing ribs 206 are arranged around the sealing element 201, and the reinforcing ribs 206 are arranged in the annular groove 205.

[0057] The reinforcing ribs 206 are supported in the annular groove 205 between the sealing part 203 and the conical part 202; the arrangement of the reinforcing ribs 206 can prevent the annular groove 205 on the outer side of the sealing element 201 from deforming when it is extruded towards the opening edge of the cavity 101, and can effectively reduce the permanent deformation amount under the condition of long-term interference fit, thereby prolonging the service life.

[0058] The outer side of the sealing element 201 is also provided with a plurality of clamping grooves 207 which extend from the narrow side of the conical part 202 to the sealing part 203, and the clamping grooves 207 are in communication with the annular groove 205.

[0059] The design of the clamping grooves 207 can prevent the sealing element 201 from deforming in the annular direction after being extruded, or from deforming due to the torsion caused by rotation.

[0060] The part of the clamping groove 207 corresponding to the narrow side of the conical part 202 is an open end, and the open end is of the structure which is narrow on the inside and wide on the outside.

[0061] The opening end of the clamping groove 207 is trumpet-shaped, and the opening end is in a structure of narrow inside and wide outside, which can increase the deformation amount of the sealing member 201 under force, increase the toughness of the structure of the sealing member 201, and avoid the effect of sealing failure due to deformation.

[0062] The sealing groove 103 is provided with a limiting piece 105 matched with the clamping groove 207.

[0063] The limiting piece 105 is arranged in the clamping groove 207, which is mainly used for preventing the sealing member 201 from rotating, thereby avoiding the influence on the sealing performance due to rotation or the deformation of the sealing member 201 caused by rotation.

[0064] A heating container applies the sealing structure of the heating container according to any one of the above.

[0065] The heating container can be a constant-temperature bowl.

[0066] The utility model discloses a kind of sealing structure and heating container of heating container, its sealing member 201 includes sealing part 203 and conical part 202, conical part 202 is clamped into upper cover 102, and it is connected by the interference fit of sealing part 203 and the inside of cavity 101 opening edge;Compared with traditional sealing mode, when the pressure in container increases, sealing ring will change the contact section and corresponding angle with the opening of container, and sealing is carried out by the different section of contact inside and outside, it is a kind of face sealing form;And the application is by making the section and corresponding angle of sealing member 201 and the contact of cavity 101 opening edge not produce relative change, to form the mode of line sealing, improve the stability of sealing, prolong the service life of sealing structure.

[0067] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of explanation, and do not constitute any limitation on the utility model.

Claims

1. A sealing structure of a heating container, comprising a cavity with an opening at one end, and an upper cover corresponding to the opening of the cavity, and a ring-shaped sealing element between the opening edge of the cavity and the upper cover; characterized in that, the upper cover and the corresponding position of the opening edge of the cavity are provided with a ring-shaped sealing groove corresponding to the sealing element, the side of the sealing groove facing the opening edge of the cavity is provided with a notch, one end of the sealing element extends into the sealing groove from the notch and is clamped in the sealing groove, forming a tapered structure that becomes narrower from the notch to the sealing groove, the other end of the sealing element protrudes from the notch to the opening edge of the cavity, forming a sealing part, the sealing part is bent from the side of the notch close to the middle of the upper cover to the direction of the middle of the upper cover, forming a fitting structure that is recessed towards the opening edge of the cavity, the upper cover is fitted and abuts on the fitting structure of the sealing part, so that the sealing element is in interference fit with the inside of the opening edge of the cavity. The sealing element comprises a sealing part and a tapered part, and the tapered part is a tapered structure formed by the extension of the sealing element from the notch to the inside of the sealing groove.

2. A seal for a heated container according to claim 1, wherein The direction of the pressure generated by the extrusion of the sealing element to the opening edge of the cavity is perpendicular to the plane where the sealing element abuts with the opening edge of the cavity. The outer side of the sealing element is provided with a recessed annular groove towards the inside of the cavity, and the annular groove is wide on the outside and narrow on the inside, extending from the outer side between the tapered part and the sealing part to the position between the tapered part and the opening edge of the cavity.

3. A closure for a heated container according to claim 2, wherein A plurality of reinforcing ribs are arranged around the sealing element and in the annular groove.

4. A closure for a heated container according to claim 3, wherein The outer side of the sealing element is also provided with a plurality of clamping grooves extending from the narrow side of the tapered part to the direction of the sealing part, and the clamping grooves are in communication with the annular groove.

5. The seal for a heated container of claim 3, wherein, The part corresponding to the narrow side of the tapered part of the clamping groove is an open end, which is wide on the outside and narrow on the inside.

6. A seal for a heated container according to claim 5, wherein The sealing groove is provided with a limiting element corresponding to the clamping groove.

7. A seal for a heated container according to claim 5, wherein The tapered structure of the sealing element is provided with a strip-shaped fixing groove on the side wall facing the middle of the inner upper cover, the fixing groove extends annularly along the sealing element, and the side of the inner side wall of the upper cover corresponding to the tapered structure of the sealing element is provided with a fixing strip corresponding to the fixing groove; the fixing strip and the fixing groove are in cooperation.

8. The seal for a heated container of claim 1, wherein, The upper cover is bent from the side of the notch close to the middle of the upper cover to the direction of the middle of the upper cover, forming an arc-shaped structure protruding towards the opening edge of the cavity.

9. The seal for a heated container of claim 1, wherein, The sealing structure of the heating container according to any one of claims 1 to 9 is applied.

10. A heating vessel characterized by, ​

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