Sealing mechanism of detachable and washable cover plate of cooking utensil and electric pressure cooker

Abstract

The utility model relates to the technical field of cooking utensils, and discloses a sealing mechanism of a detachable and washable cover plate of a cooking utensil and an electric pressure cooker, the sealing mechanism of the detachable and washable cover plate of the cooking utensil comprises a pot cover assembly, the detachable and washable cover plate is detachably arranged on the pot cover assembly, and the pot cover assembly comprises a pressure bearing plate; a first sealing ring is arranged between the bearing plate and the detachable and washable cover plate, the detachable and washable cover plate comprises a first plate body and a second plate body, and a first sealing strip and a second sealing strip are integrally formed on the first sealing ring. According to the sealing mechanism of the detachable and washable cover plate of the cooking utensil and the electric pressure cooker, the first plate body and the second plate body are sealed through the first sealing strip and the second sealing strip respectively, double sealing is achieved, when one sealing strip fails, the other sealing strip can be used for sealing, and the use reliability is high; during cooking, the detachable and washable cover plate extrudes the first sealing ring upwards under the action of air pressure, so that the sealing position of the first sealing ring is more tightly attached, and the sealing effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, and more specifically, to a sealing mechanism for a detachable and washable cover plate of a cooking utensil and an electric pressure cooker. Background Art

[0002] At present, there are various cooking utensils on the market, such as electric pressure cookers. Generally, an electric pressure cooker includes a pot lid and a pot body. A bearing plate and a detachable and washable cover plate are provided on the pot lid. A sealing ring is arranged between the bearing plate and the detachable and washable cover plate to avoid problems such as air leakage and excessive food residues entering between the bearing plate and the detachable and washable cover plate. However, for the pot lids of some existing cooking utensils, the sealing ring between the bearing plate and the detachable and washable cover plate is usually single-sided sealed. Once the side used for sealing is deformed or damaged, air leakage will occur, affecting the normal use of the pressure cooker. In addition, after the pot mouth sealing ring is used for a period of time, problems such as the sealing ring shrinking and deforming inward will occur, which will lead to a decrease in the sealing performance between the pot mouth sealing ring and the pot mouth, resulting in air leakage, making it difficult to reach or maintain the rated pressure inside the pot, leading to problems such as poor cooking quality, inability to cook thoroughly or overflowing the pot, resulting in a short service life and the need for regular replacement, increasing the maintenance cost. In addition, the detachable and washable cover plate on the pot lids of some existing cooking utensils is troublesome to disassemble and assemble, and the use experience is not good. Summary of the Utility Model

[0003] To solve at least one of the above problems, the utility model provides a sealing mechanism for a detachable and washable cover plate of a cooking utensil, including: a pot lid assembly, a detachable and washable cover plate is detachably arranged on the pot lid assembly. The pot lid assembly includes a bearing plate, the detachable and washable cover plate is placed below the bearing plate, a first sealing ring is arranged between the bearing plate and the detachable and washable cover plate. The detachable and washable cover plate includes a first plate body and a second plate body. A first sealing strip and a second sealing strip are integrally formed on the first sealing ring. The first sealing strip and the second sealing strip are arranged in a ring shape. The first sealing strip is annularly abutted against the first plate body for sealing, and the second sealing strip is annularly abutted against the second plate body for sealing. For the sealing mechanism of the detachable and washable cover plate of the cooking utensil and the electric pressure cooker of the utility model, the first sealing strip and the second sealing strip are respectively used to seal the first plate body and the second plate body, realizing double sealing. When one of the sealing strips fails, the other sealing strip can be used for sealing, and the use reliability is high. During cooking, the detachable and washable cover plate presses the first sealing ring upward under the action of air pressure, making the sealing part of the first sealing ring fit more tightly, further improving the sealing effect.

[0004] Optionally, the first plate body extends in the horizontal direction, the second plate body is annular, the second plate body extends obliquely downward, and an included angle is formed between the first plate body and the second plate body, and the included angle is 90°-130°.

[0005] Optionally, the first plate body and the second plate body are integrally formed. The lower side of the first sealing strip abuts against the upper side of the first plate body, and the outer side of the second sealing strip abuts against the inner side of the second plate body.

[0006] Optionally, the pot cover assembly further includes a mounting plate fixed to the lower side of the bearing plate. The first sealing ring further includes a third sealing strip positioned between the bearing plate and the mounting plate.

[0007] Optionally, the third sealing strip extends in the horizontal direction. The second sealing strip is integrally connected to the bottom of the inner side of the third sealing strip. A first sealing protrusion for abutting and sealing against the bearing plate is provided on the upper side of the third sealing strip, and a second sealing protrusion for abutting and sealing against the mounting plate is provided on the lower side of the third sealing strip.

[0008] Optionally, the first sealing strip extends obliquely downward, and a third sealing protrusion for abutting and sealing against the lower side of the mounting plate is integrally formed on the upper side of the first sealing strip.

[0009] Optionally, a fourth sealing protrusion for abutting and sealing against the bearing plate is integrally formed on the inner side of the second sealing strip.

[0010] Optionally, the sealing mechanism of the detachable and washable cover of the cooking appliance further includes an inner pot. A second sealing ring for abutting and sealing against the mouth of the inner pot is provided on the detachable and washable cover. A pressure relief and exhaust hole is provided on the bearing plate. The detachable and washable cover is provided with an exhaust cavity communicating with the pressure relief and exhaust hole. The second plate body is the side cavity wall of the exhaust cavity. A ventilation hole for communicating the inner pot with the exhaust cavity is provided at the bottom of the exhaust cavity.

[0011] Optionally, a disassembly and assembly mechanism is provided between the detachable and washable cover and the pot cover assembly. The disassembly and assembly mechanism includes a button, a transmission rod, a locking buckle, a clamping portion, a buckling groove and a clamping groove. The button, the transmission rod, the locking buckle and the clamping groove are all provided on the pot cover assembly. The clamping portion and the buckling groove are both provided on the detachable and washable cover. The locking buckle corresponds to the buckling groove, and the clamping portion corresponds to the clamping groove. The transmission rod and the locking buckle are both hinged to the pot cover assembly. A compression spring for driving the locking buckle to buckle into the buckling groove is provided on the pot cover assembly. When an external force presses the button, the locking buckle is driven to disengage from the buckling groove through the transmission rod.

[0012] Compared with the prior art, the sealing mechanism of the detachable and washable cover plate of the cooking appliance of the present utility model seals the first plate body and the second plate body through the first sealing strip and the second sealing strip respectively, realizing double sealing. When one of the sealing strips fails, the other sealing strip can be used for sealing, and the reliability of use is high; when cooking, the detachable and washable cover plate is pressed upward by air pressure to squeeze the first sealing ring, making the sealing part of the first sealing ring fit more tightly, further improving the sealing effect; when in use, the inner side of the second plate body is the first sealing, and the upper side of the first plate body is the second sealing; when the second sealing strip on the side leaks air due to shrinkage, inward shrinkage, deformation, etc. of the sealing ring, the second sealing plays a sealing role, improving the reliability of use; when installing the detachable and washable cover plate, the upper side of the first plate body will press the lower side of the first sealing strip upward, not only playing a sealing role, but also pulling the second sealing strip outward at this time. Even if the second sealing strip has slight shrinkage or inward shrinkage, the second sealing strip can still play a sealing role, and the effective sealing life of the second sealing strip can be extended; when cooking, the internal pressure of the inner pot of the cooking appliance increases, and at this time the internal pressure will push the detachable and washable cover plate upward, and then press tightly against the first sealing strip, which will strengthen the sealing performance of the first sealing strip; the first sealing strip is not easy to warp and leak air, and the second sealing protrusion is not easy to warp and leak air, improving the sealing reliability; the detachable and washable cover plate is convenient to disassemble and assemble, easy to clean, and has a good use experience.

[0013] The present utility model also provides an electric pressure cooker, including the sealing mechanism of the detachable and washable cover plate of the cooking appliance as described above. This electric pressure cooker also has the beneficial effects of the above-mentioned sealing mechanism of the detachable and washable cover plate of the cooking appliance, which will not be elaborated here. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the sealing mechanism of the detachable and washable cover plate of the cooking appliance of the present utility model;

[0015] Figure 2 is a cross-sectional view of the sealing mechanism of the detachable and washable cover plate of the cooking appliance of the present utility model;

[0016] Figure 3 is Figure 2 an enlarged view of part B in

[0017] Figure 4 is Figure 2 an enlarged view of part C in

[0018] Figure 5 is a schematic structural diagram of the vent hole of the sealing mechanism of the detachable and washable cover plate of the cooking appliance of the present utility model;

[0019] Figure 6 is a schematic structural diagram of the lid assembly of the present utility model after removing the detachable and washable cover plate;

[0020] Figure 7This is a schematic structural diagram of the detachable cover plate of the sealing mechanism of the cooking appliance of the present utility model;

[0021] Figure 8 This is a schematic structural diagram of the first sealing ring of the sealing mechanism of the detachable cover plate of the cooking appliance of the present utility model;

[0022] The corresponding component names of the reference numerals in the figure are: 1 is the pot lid assembly, 11 is the bearing plate, 111 is the pressure relief and exhaust hole, 12 is the mounting plate, 2 is the detachable cover plate, 21 is the first plate body, 22 is the second plate body, 201 is the exhaust cavity, 2011 is the ventilation hole, 3 is the first sealing ring, 31 is the first sealing strip, 311 is the third sealing protrusion, 32 is the second sealing strip, 321 is the fourth sealing protrusion, 33 is the third sealing strip, 331 is the first sealing protrusion, 332 is the second sealing protrusion, 333 is the through groove, 4 is the inner pot, 5 is the second sealing ring, 61 is the button, 62 is the transmission rod, 63 is the locking buckle, 64 is the engaging part, 65 is the buckling groove, 66 is the clamping groove, 67 is the compression spring, 7 is the bolt, 8 is the pressure relief valve, and A is the included angle. Detailed implementation manners

[0023] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship during the normal use of the product.

[0025] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0026] Refer to Figures 1-8, an embodiment of the present utility model provides a sealing mechanism for a detachable and washable cover plate of a cooking appliance, comprising: a pot lid assembly 1, on which a detachable and washable cover plate 2 is detachably arranged. The pot lid assembly 1 includes a bearing plate 11, and the detachable and washable cover plate 2 is placed below the bearing plate 11. During cooking, food residues remain on the detachable and washable cover plate 2, avoiding excessive food residues remaining on the bearing plate. The detachable and washable cover plate 2 is convenient to disassemble and assemble, facilitating cleaning; a first sealing ring 3 is arranged between the bearing plate 11 and the detachable and washable cover plate 2. The detachable and washable cover plate 2 includes a first plate body 21 and a second plate body 22. A first sealing strip 31 and a second sealing strip 32 are integrally formed on the first sealing ring 3. The first sealing strip 31 and the second sealing strip 32 are arranged in a ring shape. The first sealing strip 31 is in annular contact with the first plate body 21 for sealing, and the second sealing strip 32 is in annular contact with the second plate body 22 for sealing. The sealing effect is good, making it difficult for air to leak between the bearing plate 11 and the detachable and washable cover plate 2, that is, the gas inside the first sealing ring 3 is not easily leaked to the outside; the sealing mechanism for the detachable and washable cover plate of the cooking appliance and the electric pressure cooker of the present utility model achieve double sealing by respectively sealing the first plate body and the second plate body with the first sealing strip and the second sealing strip. When one of the sealing strips fails, the other sealing strip can be used for sealing, and the use reliability is high; during cooking, the detachable and washable cover plate presses the first sealing ring upward under the action of air pressure, making the sealing part of the first sealing ring fit more closely, further improving the sealing effect.

[0027] Refer to Figures 1-3The first plate body 21 extends in the horizontal direction, the second plate body 22 is annular, and the second plate body 22 extends obliquely downward. An angle A is formed between the first plate body 21 and the second plate body 22, and the angle A is 90°-130°. In this embodiment, the angle A is 100°. When cooking, the first plate body 21 and the second plate body 22 are subjected to upward air pressure, thereby pressing the first sealing strip 31 and the second sealing strip 32 upward accordingly to improve the sealing effect; the first plate body 21 and the second plate body 22 are integrally formed, the lower side of the first sealing strip 31 abuts against the upper side of the first plate body 21, and the outer side of the second sealing strip 32 abuts against the inner side of the second plate body 22. The structural design is reasonable, and the first sealing strip 31 is arranged to be tilted downward, so that it is convenient to press downward against the upper side of the first plate body 21 for sealing; when in use, the second plate body 22 The inner side is the first seal, and the upper side of the first plate body 21 is the second seal; when the second sealing strip 32 on the side leaks due to shrinkage, inward contraction, deformation, etc. of the sealing ring, the second seal plays a sealing role, thereby improving the reliability of use; when installing the detachable cover, the upper side of the first plate body 21 will squeeze the lower side of the first sealing strip 31 upward, which will not only play a sealing role, but also pull the second sealing strip 32 outward. Even if the second sealing strip 32 shrinks slightly or contracts inward, the second sealing strip 32 can still play a sealing role, thereby extending the effective sealing life of the second sealing strip 32; when cooking, the internal pressure of the inner pot of the cooking utensil increases. At this time, the internal pressure will push the detachable cover upward, and then press it against the first sealing strip 31, thereby strengthening the sealing performance of the first sealing strip 31.

[0028] See also Figures 1-3 The pot cover assembly 1 also includes a mounting plate 12 fixed to the lower side of the pressure plate 11 by bolts 7. The first sealing ring 3 also includes a third sealing strip 33 positioned between the pressure plate 11 and the mounting plate 12. A through groove 333 corresponding to the bolt 7 is provided on the third sealing strip 33. The bolt 7 penetrates the mounting plate 12 and the through groove 333 from bottom to top and is threadedly connected to the pressure plate 11. The assembly is convenient and the cost is low. The third sealing strip 33 extends in the horizontal direction. The second sealing strip 32 is integrally connected to the bottom of the inner side of the third sealing strip 33. The upper side of the third sealing strip 33 is provided with a first sealing protrusion 331 for sealing against the pressure plate 11. The third sealing A second sealing protrusion 332 for sealing against the mounting plate 12 is provided on the lower side of the strip 33, so that air leakage is not likely to occur between the pressure plate 11 and the mounting plate 12; the first sealing strip 31 extends downwardly at an angle, and a third sealing protrusion 311 for sealing against the lower side of the mounting plate 12 is integrally formed on the upper side of the first sealing strip 31, so that the first sealing strip 31 is not likely to curl up and leak, thereby improving the sealing reliability; a fourth sealing protrusion 321 for sealing against the pressure plate 11 is integrally formed on the inner side of the second sealing strip 32, and the fourth sealing protrusion 321 is inclined upward, so that the second sealing protrusion 332 is not likely to curl up and leak, thereby improving the sealing reliability.

[0029] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the sealing mechanism of the detachable cover plate of the cooking appliance further includes an inner pot 4. A second sealing ring 5 for abutting and sealing against the mouth of the inner pot 4 is provided on the detachable cover plate 2. A pressure relief exhaust hole 111 is provided on the bearing plate 11. A pressure relief valve 8 communicating with the pressure relief exhaust hole 111 is provided on the pot cover assembly 1. The detachable cover plate 2 is provided with an exhaust cavity 201 communicating with the pressure relief exhaust hole 111. The second plate body 22 is the side cavity wall of the exhaust cavity 201. A ventilation hole 2011 for communicating the inner pot 4 with the exhaust cavity 201 is provided at the bottom of the exhaust cavity 201. The gas in the inner pot enters the exhaust cavity 201 through the ventilation hole 2011. A disassembly and assembly mechanism is provided between the detachable cover plate 2 and the pot cover assembly 1. The disassembly and assembly mechanism includes a button 61, a transmission rod 62, a locking buckle 63, an engaging portion 64, a buckling groove 65 and a clamping groove 66. The button 61, the transmission rod 62, the locking buckle 63 and the clamping groove 66 are all provided on the pot cover assembly 1. The engaging portion 64 and the buckling groove 65 are both provided on the detachable cover plate 2. The locking buckle 63 corresponds to the buckling groove 65, and the engaging portion 64 corresponds to the clamping groove 66. The transmission rod 62 and the locking buckle 63 are both hinged on the pot cover assembly 1. A compression spring 67 for driving the locking buckle 63 to buckle into the buckling groove 65 is provided on the pot cover assembly 1. When an external force presses the button 61, the locking buckle 63 is driven by the transmission rod 62 to disengage from the buckling groove 65. When installing the detachable cover plate 2, the engaging portion 64 is snapped into the clamping groove 66, and then the buckling groove 65 is buckled with the locking buckle 63 to complete the installation, which is convenient for installation. When disassembling the detachable cover plate 2, press the button 61, so that the transmission rod 62 drives the locking buckle 63 to rotate out of the buckling groove 65, and then the detachable cover plate 2 can be removed. The disassembly and assembly are convenient, which is convenient for cleaning and has a good user experience.

[0030] The sealing mechanism of the detachable and washable cover plate of the cooking appliance of the present utility model seals the first plate body and the second plate body respectively through the first sealing strip and the second sealing strip to achieve double sealing. When one of the sealing strips fails, the other sealing strip can be used for sealing, and the reliability of use is high; during cooking, the detachable and washable cover plate is upwardly pressed against the first sealing ring under the action of air pressure, so that the sealing part of the first sealing ring is more closely attached, further improving the sealing effect; when in use, the inner side of the second plate body is the first sealing, and the upper side of the first plate body is the second sealing; when the second sealing strip on the side leaks air due to shrinkage, inward shrinkage, deformation, etc. of the sealing ring, the second sealing plays a sealing role to improve the reliability of use; when installing the detachable and washable cover plate, the upper side of the first plate body will upwardly press the lower side of the first sealing strip, which not only plays a sealing role, but also pulls the second sealing strip outwards at this time. Even if the second sealing strip has slight shrinkage or inward shrinkage, the second sealing strip can still play a sealing role, and the effective sealing life of the second sealing strip can be extended; when cooking, the internal pressure in the inner pot of the cooking appliance increases, and at this time the internal pressure will push the detachable and washable cover plate upwards, and then press tightly against the first sealing strip, which will strengthen the sealing performance of the first sealing strip; the first sealing strip is not easy to warp and leak air, and the second sealing protrusion is not easy to warp and leak air, improving the sealing reliability; the detachable and washable cover plate is convenient to disassemble and assemble, easy to clean, and has a good use experience.

[0031] Referring to Figure 1 , the present utility model also provides an electric pressure cooker, which includes the sealing mechanism of the detachable and washable cover plate of the cooking appliance as described above. This electric pressure cooker also has the beneficial effects of the above-mentioned sealing mechanism of the detachable and washable cover plate of the cooking appliance, and will not be elaborated here.

[0032] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A sealing mechanism for a detachable cover of a cooking utensil, characterized in that: include: A pot cover assembly (1), wherein a detachable and washable cover plate (2) is detachably provided on the pot cover assembly (1), the pot cover assembly (1) comprises a pressure-bearing plate (11), the detachable and washable cover plate (2) is placed below the pressure-bearing plate (11), a first sealing ring (3) is provided between the pressure-bearing plate (11) and the detachable and washable cover plate (2), the detachable and washable cover plate (2) comprises a first plate body (21) and a second plate body (22), a first sealing strip (31) and a second sealing strip (32) are integrally formed on the first sealing ring (3), the first sealing strip (31) and the second sealing strip (32) are arranged in an annular shape, the first sealing strip (31) is annularly abutted against the first plate body (21) for sealing, and the second sealing strip (32) is annularly abutted against the second plate body (22) for sealing.

2. The sealing mechanism of the detachable cover of the cooking utensil according to claim 1, characterized in that: The first plate body (21) extends in a horizontal direction, the second plate body (22) is annular, the second plate body (22) extends obliquely downward, and an angle (A) is formed between the first plate body (21) and the second plate body (22), and the angle (A) is 90°-130°.

3. The sealing mechanism of the detachable cover of the cooking utensil according to claim 2, characterized in that: The first plate body (21) and the second plate body (22) are integrally formed, the lower side of the first sealing strip (31) abuts against the upper side of the first plate body (21), and the outer side of the second sealing strip (32) abuts against the inner side of the second plate body (22).

4. The sealing mechanism of the detachable cover of the cooking utensil according to claim 1, characterized in that: The pot cover assembly (1) further comprises a mounting plate (12) fixed to the lower side of the pressure plate (11), and the first sealing ring (3) further comprises a third sealing strip (33) positioned between the pressure plate (11) and the mounting plate (12).

5. The sealing mechanism of the detachable cover of the cooking utensil according to claim 4, characterized in that: The third sealing strip (33) extends in a horizontal direction, the second sealing strip (32) is integrally connected to the bottom of the inner side of the third sealing strip (33), the upper side of the third sealing strip (33) is provided with a first sealing protrusion (331) for sealing against the pressure plate (11), and the lower side of the third sealing strip (33) is provided with a second sealing protrusion (332) for sealing against the mounting plate (12).

6. The sealing mechanism of the detachable cover of the cooking utensil according to claim 4, characterized in that: The first sealing strip (31) extends obliquely downward, and a third sealing protrusion (311) is integrally formed on the upper side of the first sealing strip (31) for sealing against the lower side of the mounting plate (12).

7. The sealing mechanism of the detachable cover of the cooking utensil according to claim 1, characterized in that: A fourth sealing protrusion (321) is integrally formed on the inner side of the second sealing strip (32) and is used for sealing against the pressure plate (11).

8. The sealing mechanism of the detachable cover of the cooking utensil according to claim 1, characterized in that: The invention also comprises an inner pot (4), the detachable cover plate (2) being provided with a second sealing ring (5) for sealing against the pot mouth of the inner pot (4), the pressure-bearing plate (11) being provided with a pressure relief vent (111), the detachable cover plate (2) being provided with an exhaust cavity (201) connected to the pressure relief vent (111), the second plate body (22) being a side cavity wall of the exhaust cavity (201), and the bottom of the exhaust cavity (201) being provided with an exhaust hole (2011) for connecting the inner pot (4) with the exhaust cavity (201).

9. The sealing mechanism of the detachable cover of the cooking utensil according to any one of claims 1 to 8, characterized in that: A disassembly and assembly mechanism is provided between the detachable and washable cover plate (2) and the pot cover assembly (1), the disassembly and assembly mechanism comprising a button (61), a transmission rod (62), a locking buckle (63), a clamping portion (64), a buckle slot (65) and a clamping slot (66); the button (61), the transmission rod (62), the locking buckle (63) and the clamping slot (66) are all provided on the pot cover assembly (1); the clamping portion (64) and the buckle slot (65) are all provided on the detachable and washable cover plate (2); The locking buckle (63) corresponds to the buckle slot (65), the engaging portion (64) corresponds to the buckle slot (66), the transmission rod (62) and the locking buckle (63) are both hinged to the pot cover assembly (1), and the pot cover assembly (1) is provided with a compression spring (67) for driving the locking buckle (63) to buckle into the buckle slot (65), and an external force presses the button (61), and drives the locking buckle (63) to disengage from the buckle slot (65) through the transmission rod (62).

10. An electric pressure cooker, characterized in that: The invention comprises a sealing mechanism for a detachable and washable cover plate of a cooking utensil as claimed in any one of claims 1 to 9.

Images