Double-sealing mechanism of pressure cooker
By designing a double sealing mechanism in the pressure cooker, the combination of the pot mouth sealing ring and the cover sealing ring is solved, and the problem of air leakage and short service life of a single-layer sealing ring is achieved, achieving more efficient sealing performance and longer service life.
Patent Information
- Application Number
- CN202420388073.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The sealing ring of the existing pressure cooker is a single-layer silicone piece, which is prone to air leakage due to deformation or damage, and has a short service life and needs to be replaced regularly to increase maintenance costs.
A pressure cooker double sealing mechanism is designed, including a pot mouth sealing ring and a cover sealing ring. When the pressure of the inner pot rises, the pot mouth seal ring is sealed against the inside of the pot mouth, and the cover plate seal ring is deformed to the outside when pressed, performing secondary extrusion to improve sealing performance. Through the trumpet-like design and bevel structure of the second convex strip, the seal ring is ensured not to deform easily and extend its service life.
Through the double sealing structure, the sealing performance and service life of the pot mouth sealing ring is significantly improved, air leakage is avoided, maintenance costs are reduced, and cooking quality is improved.
Smart Images
Figure CN222584245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pressure cookers, in particular to a double sealing mechanism for a pressure cooker. Background Art
[0002] There are many kinds of cooking utensils on the market, such as electric pressure cookers. A general electric pressure cooker includes a lid and a pot body, wherein the lid is provided with a sealing ring. When the lid is closed on the pot body, the sealing ring seals the pot mouth of the pot body. However, the common problems of pressure cookers on the market are: the sealing rings of most pressure cookers on the market are single-layer silicone parts. Once they are deformed or damaged, air leakage will occur, affecting the normal use of the pressure cooker; in addition, after a period of use, the pot mouth sealing ring will shrink and deform inward, which will cause the sealing between the pot mouth sealing ring and the pot mouth to decrease and cause air leakage, making it difficult to reach or maintain the rated pressure in the pot, resulting in problems such as reduced food quality, inability to cook or overflowing the pot. The existing pot mouth sealing ring has a short service life and needs to be replaced regularly, increasing maintenance costs. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] The problem to be solved by the utility model is to provide a double sealing mechanism for a pressure cooker, which is provided with a pot mouth sealing ring and a cover plate sealing ring. When the pressure in the inner pot rises, the pot mouth sealing ring is pressed against the inner side of the pot mouth for sealing, and at the same time, the cover plate sealing ring is deformed outwardly under pressure, thereby performing a secondary extrusion on the pot mouth sealing ring, thereby playing a role in increasing the sealing performance of the pot mouth sealing ring; the pot mouth sealing ring is not easy to deform inwardly when shrinking, thereby extending the service life of the pot mouth sealing ring.
[0005] (II) Technical solution
[0006] In order to solve the technical problem, the utility model provides a double sealing mechanism for a pressure cooker, comprising: an inner pot and a pot cover, the inner cavity of the inner pot containing food, a pot mouth sealing ring for sealing the pot mouth of the inner pot fixedly arranged on the pot cover, the pot mouth sealing ring is annular and is arranged on the inner side of the pot mouth of the inner pot, when the pressure in the inner cavity of the inner pot increases during cooking, at this time, the pot mouth sealing ring annularly abuts against the pot mouth of the inner pot to achieve the purpose of sealing; a cover plate assembly is arranged at the lower part of the pot cover, the cover plate assembly comprises a plate body and a cover plate sealing ring fixedly sleeved on the outer side of the plate body, the plate body is fixed to the bottom of the pot cover; the pot mouth sealing ring comprises a first convex strip, the first convex strip is arranged on the inner side of the pot mouth of the inner pot, the cover plate sealing ring comprises a second convex strip, the second convex strip abuts against the inner side of the first convex strip, when the pressure in the inner cavity of the inner pot increases during cooking, the air pressure squeezes the first convex strip and deforms it outward. The second convex strip is pressed against the inner side of the pot mouth of the inner pot to achieve a sealing effect; at this time, the second convex strip is deformed outwardly by the pressure of the inner pot cavity, that is, the first convex strip is squeezed outwardly for a second time to deform, so that the first convex strip is tightly pressed against the inner side of the pot mouth of the inner pot, thereby improving the sealing performance; and, since the second convex strip has an outward supporting force on the first convex strip, the first convex strip is not easy to deform inwardly, thereby ensuring its sealing performance, thereby extending the service life of the first convex strip and the pressure cooker; the double sealing mechanism of the pressure cooker of the utility model is provided with a pot mouth sealing ring and a cover plate sealing ring. When the pressure in the inner pot rises, the pot mouth sealing ring is pressed against the inner side of the pot mouth for sealing, and at the same time, the cover plate sealing ring is pressed and deformed outwardly, thereby performing a second squeezing on the pot mouth sealing ring, thereby increasing the sealing performance of the pot mouth sealing ring; the pot mouth sealing ring is not easy to deform inwardly when shrinking, thereby extending the service life of the pot mouth sealing ring.
[0007] Furthermore, the second convex strip is in a trumpet shape with the trumpet opening facing downward.
[0008] Furthermore, a first inclined surface is formed on the inner side of the lower portion of the first convex strip, and a second inclined surface corresponding to the first inclined surface is formed on the outer side of the second convex strip, and the first inclined surface abuts against the second inclined surface.
[0009] Furthermore, the first inclined surface and the second inclined surface are both arc-shaped.
[0010] Furthermore, a third inclined surface is formed on the inner side of the second convex strip, and the third inclined surface is arc-shaped.
[0011] Furthermore, the pot mouth sealing ring also includes a first mounting block, the first protrusion is integrally formed at the lower part of the first mounting block, and the first mounting block is used to be fixedly mounted on the pot cover; the cover plate sealing ring also includes a second mounting block integrally formed with the second protrusion, the second mounting block is fixedly sleeved on the outer side of the plate body, and the second protrusion is placed at the outer edge of the bottom of the second mounting block.
[0012] Furthermore, the pot cover is provided with a first flange and a second flange, and the first mounting block is provided with a first groove corresponding to the first flange and a second groove corresponding to the second flange.
[0013] Furthermore, a pressure plate is fixedly provided on the pot cover, a convex plate is extended upward from the outer edge of the pressure plate, and a third flange for abutting against the convex plate is integrally formed on the pot mouth sealing ring.
[0014] Furthermore, a pressure relief valve is provided on the pot cover, and a plurality of through holes are provided on the plate body, and an air inlet of the pressure relief valve is connected with the inner cavity of the inner pot through the through holes.
[0015] Furthermore, the cover plate assembly is detachably connected to the pot cover, and the cover plate assembly also includes a handle and a bolt member, the handle is fixedly connected to the plate body, the bolt member is fixedly connected to the handle, and the pot cover is threadedly connected to the bolt member.
[0016] (III) Beneficial effects
[0017] The double sealing mechanism of the pressure cooker of the utility model is provided with a pot mouth sealing ring and a cover plate sealing ring. When the pressure in the inner pot rises, the pot mouth sealing ring abuts against the inner side of the pot mouth for sealing, and at the same time, the cover plate sealing ring is pressed and deformed outwardly, thereby performing secondary extrusion on the pot mouth sealing ring, which plays a role in increasing the sealing performance of the pot mouth sealing ring; the pot mouth sealing ring is not easy to deform inwardly when shrinking, thereby extending the service life of the pot mouth sealing ring; the second convex strip is in a trumpet shape and the trumpet opening is arranged downward, so that the second convex strip is conveniently deformed outwardly under the pressure of the inner pot cavity; the pot mouth sealing ring is integrally formed with a third flange for abutting against the convex plate, so as to ensure the sealing performance between the pot mouth sealing ring and the pressure plate, and avoid air leakage; when cooking, food residues remain on the plate body, so as to avoid excessive food residues remaining on the pressure plate; the cover plate assembly is convenient to assemble and disassemble, and is convenient to clean, while the pressure plate is assembled on the pot cover, and it is difficult for consumers to disassemble and clean it, so it is convenient and hygienic to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the double sealing mechanism of the pressure cooker of the utility model;
[0019] Figure 2 It is a cross-sectional view of the double sealing mechanism of the pressure cooker of the utility model;
[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;
[0021] Figure 4 for Figure 2 Enlarged view of middle part B;
[0022] Figure 5 It is a cross-sectional view of the lid portion of the double sealing mechanism of the pressure cooker of the utility model;
[0023] Figure 6 for Figure 5 Enlarged view of the middle C part;
[0024] Figure 7 It is a cross-sectional view of a cover assembly of a double sealing mechanism of a pressure cooker of the utility model;
[0025] Figure 8 for Figure 7 Enlarged view of the middle D part;
[0026] Fig. 9 It is a schematic diagram of the structure of the double sealing mechanism of the pressure cooker of the utility model after the lid and the cover plate assembly are assembled;
[0027] Fig.10 It is a partial exploded view of the double sealing mechanism of the pressure cooker of the utility model;
[0028] The names of the components corresponding to the various figure marks in the figure are: 1 is the inner pot, 2 is the pot cover, 201 is the first flange, 202 is the second flange, 3 is the pot mouth sealing ring, 301 is the third flange, 31 is the first convex strip, 311 is the first inclined surface, 32 is the first mounting block, 321 is the first groove, 322 is the second groove, 4 is the cover plate assembly, 41 is the plate body, 411 is the through hole, 42 is the cover plate sealing ring, 421 is the second convex strip, 4211 is the second inclined surface, 4212 is the third inclined surface, 422 is the second mounting block, 43 is the handle, 44 is the bolt member, 5 is the pressure plate, 51 is the through groove, 501 is the convex plate, 6 is the pressure relief valve, 601 is the air inlet, and 7 is the gap. DETAILED DESCRIPTION
[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0030] See also Figure 1-Figure 10The utility model provides a double sealing mechanism for a pressure cooker, comprising: an inner pot 1 and a pot cover 2. The inner cavity of the inner pot 1 is used to hold food. A pot mouth sealing ring 3 for sealing the pot mouth of the inner pot 1 is fixedly arranged on the pot cover 2. The pot mouth sealing ring 3 is annular and is arranged on the inner side of the pot mouth of the inner pot 1. When the pressure in the inner cavity of the inner pot 1 increases during cooking, the pot mouth sealing ring 3 is annularly pressed against the pot mouth of the inner pot 1 to achieve the purpose of sealing. A cover plate assembly 4 is arranged at the lower part of the pot cover 2. The cover plate assembly 4 includes a plate body 41 and a and a cover plate sealing ring 42 fixedly sleeved on the outer side of the plate body 41, the pot mouth sealing ring 3 is made of rubber or silicone, and the cover plate sealing ring 42 is made of rubber or silicone; the plate body 41 is fixed to the bottom of the pot cover 2; the pot mouth sealing ring 3 includes a first convex strip 31, the first convex strip 31 is placed on the inner side of the pot mouth of the inner pot 1, and the cover plate sealing ring 42 includes a second convex strip 421, the second convex strip 421 is against the inner side of the first convex strip 31, the pressure in the inner cavity of the cooking pot 1 increases, and the air pressure squeezes the first convex strip 31 And it is deformed outwards and pressed against the inner side of the pot mouth of the inner pot 1 to achieve a sealing effect; at this time, the second convex strip 421 is deformed outwards by the pressure of the inner cavity of the inner pot 1, that is, the first convex strip 31 is squeezed outwards for a second time to deform, so that the first convex strip 31 is tightly attached to the inner side of the pot mouth of the inner pot 1, thereby improving the sealing performance; and, since the second convex strip 421 has an outward supporting force on the first convex strip 31, the first convex strip 31 is not easy to deform inwards, thereby ensuring its sealing performance, thereby extending the service life of the first convex strip 31 and the pressure cooker; the double sealing mechanism of the pressure cooker of the utility model is provided with a pot mouth sealing ring and a cover plate sealing ring. When the pressure in the inner pot rises, the pot mouth sealing ring presses against the inner side of the pot mouth for sealing, and at the same time, the cover plate sealing ring is pressed and deformed outwards, thereby performing a second squeezing on the pot mouth sealing ring, thereby increasing the sealing performance of the pot mouth sealing ring; the pot mouth sealing ring is not easy to deform inwards when shrinking, thereby extending the service life of the pot mouth sealing ring.
[0031] See also Figure 2-Figure 8The second convex strip 421 is in the shape of a trumpet and the trumpet opening is arranged downward, so that the second convex strip 421 is deformed outward under the pressure of the inner cavity of the inner pot 1; there is a gap 7 between the first convex strip 31 and the inner side wall of the pot mouth, so that when the user closes the pot cover, the first convex strip 31 and the inner side wall of the pot mouth will not interfere with each other, and the lid closing is smoother; a first inclined surface 311 is formed on the inner side of the lower part of the first convex strip 31, so that the first convex strip 31 is deformed outward under the pressure of the inner cavity of the inner pot 1; a second inclined surface 4211 corresponding to the first inclined surface 311 is formed on the outer side of the second convex strip 421, so that the second convex strip 421 has a stable support for the first convex strip 31; the first inclined surface 311 and the second inclined surface 4211 are both arc-shaped, and the first inclined surface 311 and the second inclined surface 4211 are 1 is more stable against each other and is not prone to relative displacement; a third inclined surface 4212 is formed on the inner side of the second convex strip 421, and the third inclined surface 4212 is arc-shaped, so that the second convex strip 421 is deformed outward under the pressure of the inner cavity of the inner pot 1; the pot mouth sealing ring 3 also includes a first mounting block 32, the first convex strip 31 is integrally formed at the lower part of the first mounting block 32, and the first mounting block 32 is used for fixed installation on the pot cover 2; the pot cover 2 is provided with a first flange 201 and a second flange 202, and the first mounting block 32 is provided with a first groove 321 corresponding to the first flange 201 and a second groove 322 corresponding to the second flange 202; the cover plate sealing ring 42 also includes a second mounting block 422 integrally formed with the second convex strip 421, the second mounting block 422 is fixedly sleeved on the outer side of the plate body 41, and the second convex strip 421 is placed at the outer edge of the bottom of the second mounting block 422.
[0032] See also Figure 2-Figure 6 A pressure plate 5 is fixed on the pot cover 2 by bolts, and the pressure plate 5 is placed between the pot cover 2 and the cover plate assembly 4; a convex plate 501 is extended upward from the outer edge of the pressure plate 5, and a third flange 301 for abutting against the convex plate 501 is integrally formed on the pot mouth sealing ring 3 to ensure the sealing between the pot mouth sealing ring 3 and the pressure plate 5 to avoid air leakage.
[0033] See also Figure 1 , Fig. 9 and Fig.10 A pressure relief valve 6 is provided on the pot cover 2, and a plurality of through holes 411 are provided on the plate body 41. The air inlet 601 of the pressure relief valve 6 is communicated with the inner cavity of the inner pot 1 through the through hole 411; a plurality of through holes 411 are provided on the plate body 41, and a through groove 51 is provided on the pressure bearing plate 5. The air inlet 601 of the pressure relief valve 6 is communicated with the inner cavity of the inner pot 1 through the through groove 51 and the through hole 411, so that when the pressure in the inner pot 1 is too high, the pressure can be relieved through the pressure relief valve 6 to ensure safety.
[0034] See also Figure 1 , Figure 2, Figure 4 , Figure 7 and Fig.10 The cover assembly 4 is detachably connected to the pot cover 2, and the cover assembly 4 also includes a handle 43 and a bolt 44. The plate body 41 and the bolt 44 are both 304 stainless steel; the handle 42 is made of silicone or rubber; the handle 43 is fixedly connected to the plate body 41, the bolt 44 is fixedly connected to the handle 43, and the pot cover 2 is threadedly connected to the bolt 44; a threaded hole corresponding to the bolt 43 is provided on the pot cover 2; the cover assembly 4 is easy to disassemble and assemble; when cooking, food residues remain on the plate body 41, so as to avoid excessive food residues remaining on the pressure plate 5, the cover assembly 4 can be removed for cleaning, and the pressure plate 5 is assembled on the pot cover, which is difficult for consumers to remove for cleaning, so it is convenient and hygienic to use.
[0035] The double sealing mechanism of the pressure cooker of the utility model can prevent food residues from remaining on the plate body during cooking, and can prevent excessive food residues from remaining on the pressure plate. The cover plate assembly is easy to disassemble and assemble, and is convenient for cleaning. The pressure plate is assembled on the pot cover, and it is difficult for consumers to disassemble and clean it. The utility model is convenient and hygienic to use. A pot mouth sealing ring and a cover plate sealing ring are provided. When the pressure in the inner pot rises, the pot mouth sealing ring is pressed against the inner side of the pot mouth for sealing. At the same time, the cover plate sealing ring will be deformed outwardly under pressure, thereby performing secondary squeezing on the pot mouth sealing ring, which plays a role in increasing the sealing performance of the pot mouth sealing ring. The pot mouth sealing ring is not easy to move inward when shrinking. The utility model increases the sealing ring structure of the cover plate, namely, the sealing ring of the pot mouth and the sealing ring of the cover plate can both play a sealing role, thus solving the limitation of the single-layer sealing ring. Moreover, the two sealing rings interact with each other, thus greatly improving the service life of the pot mouth sealing ring.
[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A double sealing mechanism for a pressure cooker, characterized in that: include: An inner pot (1) and a pot cover (2), wherein a pot mouth sealing ring (3) for sealing the pot mouth of the inner pot (1) is fixedly arranged on the pot cover (2), the pot mouth sealing ring (3) is annular and is arranged on the inner side of the pot mouth of the inner pot (1), a cover plate assembly (4) is arranged at the lower part of the pot cover (2), the cover plate assembly (4) comprises a plate body (41) and a cover plate sealing ring (42) fixedly sleeved on the outer side of the plate body (41), the pot mouth sealing ring (3) comprises a first convex strip (31), the first convex strip (31) is arranged on the inner side of the pot mouth of the inner pot (1), and the cover plate sealing ring (42) comprises a second convex strip (421), the second convex strip (421) abuts against the inner side of the first convex strip (31).
2. The double sealing mechanism for a pressure cooker according to claim 1, characterized in that: The second convex strip (421) is in a trumpet shape and the trumpet opening is arranged downward.
3. The double sealing mechanism for a pressure cooker according to claim 1, characterized in that: A first inclined surface (311) is formed on the inner side of the lower part of the first convex strip (31), and a second inclined surface (4211) corresponding to the first inclined surface (311) is formed on the outer side of the second convex strip (421), and the first inclined surface (311) and the second inclined surface (4211) are abutted against each other.
4. The double sealing mechanism for a pressure cooker as claimed in claim 3, characterized in that: The first inclined surface (311) and the second inclined surface (4211) are both arc-shaped.
5. The double sealing mechanism for a pressure cooker as claimed in claim 1, characterized in that: A third inclined surface (4212) is formed on the inner side of the second convex strip (421), and the third inclined surface (4212) is arc-shaped.
6. The double sealing mechanism for a pressure cooker as claimed in claim 1, characterized in that: The pot mouth sealing ring (3) further comprises a first mounting block (32), the first convex strip (31) being integrally formed at the lower part of the first mounting block (32), and the first mounting block (32) being used for being fixedly mounted on the pot cover (2); the cover plate sealing ring (42) further comprises a second mounting block (422) being integrally formed with the second convex strip (421), the second mounting block (422) being fixedly sleeved on the outer side of the plate body (41), and the second convex strip (421) being disposed at the outer edge of the bottom of the second mounting block (422).
7. The double sealing mechanism for a pressure cooker as claimed in claim 6, characterized in that: The pot cover (2) is provided with a first flange (201) and a second flange (202), and the first mounting block (32) is provided with a first groove (321) corresponding to the first flange (201) and a second groove (322) corresponding to the second flange (202).
8. The double sealing mechanism for a pressure cooker as claimed in claim 1, characterized in that: A pressure plate (5) is fixedly provided on the pot cover (2), a convex plate (501) is provided on the outer edge of the pressure plate (5) extending upward, and a third flange (301) for abutting against the convex plate (501) is integrally formed on the pot mouth sealing ring (3).
9. The double sealing mechanism for a pressure cooker as claimed in claim 1, characterized in that: The pot cover (2) is provided with a pressure relief valve (6), the plate body (41) is provided with a plurality of through holes (411), and the air inlet (601) of the pressure relief valve (6) is connected to the inner cavity of the inner pot (1) through the through holes (411).
10. The double sealing mechanism for a pressure cooker according to any one of claims 1 to 9, characterized in that: The cover plate assembly (4) is detachably connected to the pot cover (2), and the cover plate assembly (4) further comprises a handle (43) and a bolt member (44); the handle (43) is fixedly connected to the plate body (41), the bolt member (44) is fixedly connected to the handle (43), and the pot cover (2) is threadedly connected to the bolt member (44).