Lid assembly and cooking appliance

Abstract

The present invention provides a pot lid assembly and a cooking appliance. The pot lid assembly includes: a lining; a locking lid disposed below the lining. The locking lid includes a top lid made of metal and a locking ring. The top lid is fixedly connected below the lining through a fastener. The locking ring is rotatably disposed at the outer edge of the top lid, and the locking ring is provided with lid teeth; a positioning structure disposed between the locking ring and the top lid, and the positioning structure is adapted to prevent the locking ring from disengaging downward from the top lid. In the above structure, the pressure in the cooking cavity is borne by the metal part, and the bearing effect is better. At the same time, the top lid and the locking ring are of a split structure, and different thicknesses of plates can be selected according to the force-bearing characteristics of the top lid and the locking ring, so that the overall material consumption of the locking lid is reduced and the cost is lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of small household appliances, and particularly to a pot lid assembly and a cooking appliance. Background Art

[0002] The electric pressure cooker is a commonly used household appliance. When cooking with an electric pressure cooker, the pressure in the cooking cavity is increased by heating, so as to achieve the effect of rapid cooking. Since there is high pressure in the cooking cavity when the electric pressure cooker is cooking, for safety in use, the pot body and the pot lid need to be locked tightly through pot teeth and lid teeth to prevent the situation of the pot exploding. The pot teeth of the electric pressure cooker in the prior art usually adopt the following two setting methods:

[0003] One method is as shown in the technical solution of the Chinese patent with the publication number CN112842069A. A ring-shaped locking ring is arranged below the inner liner of the electric pressure cooker, and pot teeth are arranged at the lower edge of the locking ring. At the same time, an inner lid (or lower lid) made of a plastic part is arranged below the inner liner, and the inner lid is fixed by a buckle. In this solution, the top of the cooking cavity is pressured by the plastic part, so the pressure-bearing capacity of the electric pressure cooker is limited.

[0004] Another method is as shown in the technical solution of the Chinese patent with the publication number CN209863349U. A locking lid (or steel lid) with an integral structure is arranged inside the pot lid of the electric pressure cooker, and pot teeth are arranged at the lower edge of the locking lid. In this solution, the whole cooking cavity is pressured by a metal plate, so the pressure-bearing effect is better than the previous method. However, in this solution, the top of the locking lid is the main pressure-bearing part, so the top of the locking lid needs to have a relatively thick thickness, and the locking lid is of an integral structure, resulting in a relatively thick thickness at the edge of the locking lid (i.e., the position of the lid teeth). This makes the whole locking lid consume more metal plates, with a higher cost and a heavier weight.

[0005] high, and at the same time, the weight is also heavier. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the locking lid of the electric pressure cooker in the prior art, which consumes a lot of materials and has a high cost, so as to provide a pot lid assembly and a cooking appliance.

[0007] To solve the above problems, the present invention provides a pot lid assembly, including: an inner liner; a locking lid arranged below the inner liner, the locking lid includes a top lid made of metal and a locking ring, the top lid is fixedly connected below the inner liner through a fastener, the locking ring is rotatably arranged at the outer edge of the top lid, and lid teeth are arranged on the locking ring; a positioning structure arranged between the locking ring and the top lid, and the positioning structure is adapted to prevent the locking ring from disengaging downward from the top lid.

[0008] Optionally, the upper side of the locking ring is turned inward to form a flanging, and the flanging overlaps with the outer edge of the top lid and forms a positioning structure.

[0009] Optionally, a first connecting post is provided on the turned edge, and an arc-shaped guiding groove is provided on the inner lining. The first connecting post passes through the arc-shaped guiding groove from bottom to top.

[0010] Optionally, a second connecting post is provided on the top cover. The second connecting post is adapted to be connected to a fastener, and a sheath is provided outside the second connecting post.

[0011] Optionally, the pot lid assembly further includes a connecting piece. The connecting piece is arranged between the inner lining and the top cover. The fastener includes a first fastener and a second fastener. The first fastener connects the inner lining and the connecting piece, and the second fastener connects the connecting piece and the top cover.

[0012] Optionally, the connecting piece includes a first section and a second section arranged oppositely, and a third section connected between the first section and the second section. The first section is connected to the first fastener, and the second section is connected to the second fastener.

[0013] Optionally, the pot lid assembly further includes a connecting bracket and a cover plate. The connecting bracket includes an annular side wall, and an annular top wall and an annular bottom wall connected to the upper and lower sides of the annular side wall respectively. The annular bottom wall is fitted with the upper surface of the top cover. The cover plate is arranged on the annular top wall. The top cover, the connecting bracket and the cover plate enclose a heat dissipation cavity. Among them, the connecting piece is arranged inside the connecting bracket. The first fastener connects the inner lining, the cover plate, the annular top wall and the connecting piece, and the second fastener connects the connecting piece, the annular bottom wall and the top cover.

[0014] Optionally, a first connecting hole is provided on the inner lining, a second connecting hole is provided on the cover plate, a third connecting hole is provided on the annular top wall, and a first threaded hole is provided on the connecting piece. The first fastener includes a first connecting bolt. The first connecting bolt passes through the first connecting hole, the second connecting hole and the third connecting hole and is connected to the first threaded hole.

[0015] Optionally, a third connecting post is provided on the annular top wall. The third connecting hole is provided on the third connecting post. The cover plate is provided with a protruding portion protruding upward. The second connecting hole is provided at the top of the protruding portion. The third connecting post is received in the protruding portion from bottom to top.

[0016] Optionally, the pot lid assembly further includes a gasket. The gasket is arranged on the inner lining and covers outside the first connecting hole. A fourth connecting hole is provided on the gasket. The first connecting bolt passes through the fourth connecting hole. Among them, the outer diameter of the gasket is larger than the aperture of the first connecting hole, and the aperture of the fourth connecting hole is smaller than the outer diameter of the bolt head of the first connecting bolt.

[0017] Optionally, the pot lid assembly further includes an elastic member. Two ends of the elastic member are respectively abutted against the inner lining and the cover plate.

[0018] Optionally, a fifth connection hole is provided on the connecting piece, a sixth connection hole is provided on the annular bottom wall, and a second threaded hole is provided on the top cover. The second fastener includes a second connecting bolt, and the second connecting bolt passes through the fifth connection hole and the sixth connection hole and is connected to the second threaded hole.

[0019] The present invention also provides a cooking appliance, including the above-mentioned pot lid assembly.

[0020] The present invention has the following advantages:

[0021] By using the technical solution of the present invention, the lock cover is divided into two parts, namely a top cover and a lock ring, both of which are metal parts. During cooking, the lock ring rotates so that the cover teeth and pot teeth on the lock ring are locked, and at the same time, the positioning structure prevents the lock ring and the top cover from separating, thereby enclosing a closed cooking cavity. In the above structure, the pressure in the cooking cavity is borne by the metal parts, and the bearing effect is better. At the same time, the top cover and the lock ring are of a split structure, and different thickness plates can be selected according to the stress characteristics of the top cover and the lock ring, so that the overall material consumption of the lock cover is reduced and the cost is lowered. Therefore, the technical solution of the present invention solves the defects of high material consumption and high cost of the lock cover of the existing electric pressure cooker. Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 Shows a cross-sectional schematic view of an embodiment of the pot lid assembly of the present invention;

[0024] Figure 2 Shows Figure 1 The enlarged schematic view at A in;

[0025] Figure 3 Shows Figure 1 The structural schematic view of the lock ring of the pot lid assembly in;

[0026] Figure 4 Shows Figure 1 The assembly schematic view of the top cover and the lock ring of the pot lid assembly in;

[0027] Figure 5 Shows Figure 4 The enlarged schematic view at B in;

[0028] Figure 6 Shows Figure 1 The exploded schematic view of the pot lid assembly in (the lock ring is not shown);

[0029] Figure 7 shows Figure 1 a schematic structural view of the inner lining of the pot lid assembly in

[0030] Figure 8 shows Figure 1 a schematic structural view of the bracket of the pot lid assembly in

[0031] Figure 9 shows Figure 8 an enlarged view at C in

[0032] Figure 10 shows Figure 1 a schematic structural view of the upper side perspective of the cover plate of the pot lid assembly in

[0033] Figure 11 shows Figure 1 a schematic structural view of the lower side perspective of the cover plate of the pot lid assembly in

[0034] Figure 12 shows Figure 1 a schematic structural view of the connecting piece of the pot lid assembly in

[0035] Figure 13 shows Figure 1 a sectional view at the first fastener of the pot lid assembly (the lock ring is not shown) in

[0036] Figure 14 shows Figure 13 an enlarged view at D in

[0037] Figure 15 shows Figure 1 a sectional view at the second fastener of the pot lid assembly (the lock ring is not shown) in

[0038] Figure 16 shows Figure 15 an enlarged view at E in

[0039] Explanation of reference numerals:

[0040] 10. Inner lining; 11. Arc-shaped guiding groove; 12. First connection hole; 20. Locking cover; 21. Top cover; 211. Second connection post; 212. Sheath; 213. Second threaded hole; 22. Locking ring; 221. Cover teeth; 222. Flange; 223. First connection post; 30. Fastener; 31. First fastener; 32. Second fastener; 40. Positioning structure; 50. Connecting piece; 51. First section; 52. Second section; 53. Third section; 54. First threaded hole; 55. Fifth connection hole; 60. Bracket; 61. Annular side wall; 62. Annular top wall; 621. Third connection hole; 622. Third connection post; 63. Annular bottom wall; 631. Sixth connection hole; 70. Cover plate; 71. Second connection hole; 72. Protrusion; 80. Gasket; 81. Fourth connection hole; 90. Elastic member. Detailed implementation manner

[0041] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Such as Figure 1 and Figure 2As shown in the figure, the pot cover assembly of this embodiment includes a lining 10, a locking cover 20, and a positioning structure 40. Among them, the locking cover 20 is arranged below the lining 10. The locking cover 20 includes a top cover 21 made of metal and a locking ring 22. The top cover 21 is fixedly connected below the lining 10 through a fastener 30, and the locking ring 22 is rotatably arranged at the outer edge of the top cover 21. And a cover tooth 221 is arranged on the locking ring 22. The positioning structure 40 is arranged between the locking ring 22 and the top cover 21, and the positioning structure 40 is adapted to prevent the locking ring 22 from disengaging downward from the top cover 21.

[0046] Using the technical solution of this embodiment, the locking cover 20 is divided into two parts, the top cover 21 and the locking ring 22, both of which are metal parts. During cooking, the locking ring 22 rotates so that the cover tooth 221 on the locking ring 22 is locked with the pot tooth, and at the same time the positioning structure 40 prevents the locking ring 22 and the top cover 21 from disengaging, thus enclosing a closed cooking cavity. In the above structure, the pressure in the cooking cavity is borne by the metal parts, and the bearing effect is better. At the same time, the top cover 21 and the locking ring 22 are of a split structure, and different thicknesses of plates can be selected according to the force-bearing characteristics of the top cover 21 and the locking ring 22. Therefore, the overall material consumption of the locking cover 20 is reduced and the cost is lowered. Therefore, the technical solution of this embodiment solves the defects of high material consumption and high cost of the locking cover of the existing electric pressure cooker.

[0047] It should be noted that, from Figure 1 and Figure 2 it can be seen that the top cover 21 is generally a circular sheet-like part. After the pot cover assembly is covered on the pot body (not shown in the figure), the top cover forms the top of the cooking cavity. The top cover 21 is fixedly connected below the lining 10 through a fastener 30, that is, the relative positions of the top cover 21 and the lining 10 cannot be changed.

[0048] From Figure 2 it can be seen that the locking ring 22 is generally in an annular structure, and it is rotatably arranged at the edge of the top cover 21. After the pot cover assembly is covered on the pot body, by rotating the locking ring 22, the cover tooth 221 on the locking ring is locked with the pot tooth on the pot body, thereby realizing the fixation of the pot cover assembly and the pot body. The upper side of the locking ring 22 is positioned with the top cover 21 through the positioning structure 40. During the cooking process, the top cover 21 is subjected to an upward pressure, and the positioning structure can prevent the locking ring 22 from separating downward relative to the top cover 21 (that is, the top cover 21 separates upward relative to the locking ring 22), thus ensuring the integrity of the cooking cavity.

[0049] Furthermore, the top cover 21, as the top of the cooking cavity, needs to have a good pressure bearing capacity, so the metal sheet of the top cover 21 can be selected to be thicker. The main function of the locking ring 22 is to tighten the top cover 21 and the pot teeth in the vertical direction, so the thickness of the metal sheet of the locking ring 22 can be appropriately thinned. Therefore, those skilled in the art can adaptively adjust the thickness of the metal sheets of the top cover 21 and the locking ring 22 according to the force characteristics of the two, thereby reducing the number of consumables of the locking cover 20 as a whole, reducing costs and reducing weight.

[0050] like Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the upper side of the locking ring 22 is folded inward to form a flange 222, and the flange 222 overlaps the outer edge of the top cover 21 to form a positioning structure 40. Specifically, the inner diameter of the flange 222 is larger than the outer diameter of the top cover 21, and the flange 222 overlaps the upper surface of the edge of the top cover 21. When cooking, the top cover 21 has a tendency to move upward under pressure, and at this time, the flange 222 abuts against the edge of the top cover 21 to prevent the top cover 21 from slipping upward relative to the flange 222.

[0051] Those skilled in the art will appreciate that the greater the pressure in the cooking cavity, the tighter the contact between the flange 222 and the top cover 21 , thereby achieving an effect of sealing the cooking cavity.

[0052] Combination Figure 1 It can be seen that the cover teeth 221 of the locking ring 22 are folded inwards, so the cross-section of the locking ring 22 at the cover teeth 221 is a "匚"-shaped structure, with its upper edge connected to the top cover 21 and the lower edge connected to the pot teeth.

[0053] like Figure 1 , Figure 3 and Figure 4 As shown, in the technical solution of this embodiment, a first connecting column 223 is provided on the flange 222, and an arc-shaped guide groove 11 is provided on the liner 10, and the first connecting column 223 passes through the arc-shaped guide groove 11 from bottom to top. Specifically, the first connecting column 223 is fixedly connected to the upper edge of the flange 222. When the locking ring 22 rotates relative to the top cover 21, the first connecting column 223 can slide in the arc-shaped guide groove 11. That is, the arc-shaped guide groove 11 can limit the rotation range of the locking ring 22, thereby allowing the locking ring 22 to rotate between the locked position and the unlocked position.

[0054] Furthermore, those skilled in the art can understand that since the flanging 222 of the lock ring 22 is circumferentially integrally lapped at the outer edge of the top cover 21, the lock ring 22 can maintain circumferential balance relative to the top cover 21. Therefore, in this embodiment, only one first connecting column 223 and one arc-shaped guiding groove 11 are provided to achieve the guiding effect. In some prior art electric pressure cookers, in order to ensure the balance of the lid-locking, three groups of positioning columns and arc-shaped guiding grooves need to be provided. In comparison, the lid-locking 20 structure in this embodiment is simpler and the material cost is lower.

[0055] As Figure 4 and Figure 5 shown, in the technical solution of this embodiment, a second connecting column 211 is provided on the top cover 21. The second connecting column 211 is adapted to be connected to the fastener 30, and a sheath 212 is provided outside the second connecting column 211. Specifically, the sheath 212 can protect the second connecting column 211 and the fastener 30, and prevent the fastener 30 from being damaged by knocking when the lock ring 22 rotates.

[0056] Preferably, the sheath 212 is a copper sleeve.

[0057] As Figure 6 and Figure 12 shown, in the technical solution of this embodiment, the pot lid assembly further includes a connecting piece 50, and the connecting piece 50 is arranged between the inner liner 10 and the top cover 21. The fastener 30 includes a first fastener 31 and a second fastener 32. The first fastener 31 connects the inner liner 10 and the connecting piece 50, and the second fastener 32 connects the connecting piece 50 and the top cover 21.

[0058] Specifically, the connecting piece 50 functions as an intermediate connecting member, that is, the top cover 21 is fixed below the inner liner 10 through the connecting piece 50.

[0059] Of course, in some embodiments not shown, the top cover 21 can also be directly connected below the inner liner 10 through a fastener 30.

[0060] As Figure 12 shown, in the technical solution of this embodiment, the connecting piece 50 includes a first section 51 and a second section 52 arranged opposite to each other, and a third section 53 connecting the first section 51 and the second section 52. The first section 51 is connected to the first fastener 31, and the second section 52 is connected to the second fastener 32.

[0061] Specifically, the connecting piece 50 is integrally formed by bending a metal plate. The first section 51 and the second section 52 are arranged in parallel, and the third section 53 is connected to the same side of the first section 51 and the second section 52, and the third section 53 is perpendicular to both the first section 51 and the second section 52. That is, the cross-section of the connecting piece 50 is in a "C" - shaped structure.

[0062] Even further, fromFigure 12 It can also be seen that the length of the second section 52 is greater than that of the first section 51, so that a part of the second section 52 protrudes beyond the first section 51. The first fastener 31 is connected to the first section 51, and the second fastener 32 is connected to the part of the second section 52 that protrudes beyond the first section 51. That is, the connection positions of the first fastener 31 and the second fastener 32 are arranged in a staggered manner, which is convenient for assembly (details will be described below).

[0063] As Figures 6 to 11 shown, in the technical solution of this embodiment, the pot lid assembly further includes a connection bracket 60 and a cover plate 70. The connection bracket 60 includes an annular side wall 61, an annular top wall 62 and an annular bottom wall 63 connected to the upper and lower sides of the annular side wall 61. The annular bottom wall 63 is matched with the upper surface of the top cover 21, and the cover plate 70 is covered on the annular top wall 62. The top cover 21, the connection bracket 60 and the cover plate 70 enclose a heat dissipation cavity. Among them, the connection piece 50 is arranged inside the connection bracket 60, the first fastener 31 connects the inner liner 10, the cover plate 70, the annular top wall 62 and the connection piece 50, and the second fastener 32 connects the connection piece 50, the annular bottom wall 63 and the top cover 21.

[0064] Specifically, from Figure 14 and Figure 16 it can be seen that a heat dissipation cavity is formed between the bracket 60, the cover plate 70 and the top cover 21. After cooking, a large amount of heat accumulates on the top cover 21, and the accumulated heat can be quickly dissipated through heat exchange in the heat dissipation cavity, thereby increasing the speed of reducing the temperature and pressure in the cooking cavity and realizing quick opening of the lid after cooking.

[0065] In some embodiments not shown, cold air can be introduced into the heat dissipation cavity by an external fan to accelerate the heat exchange speed. Alternatively, fins can also be arranged in the heat dissipation cavity to improve the heat exchange efficiency.

[0066] As Figure 8 and Figure 9 shown, in this embodiment, the connection bracket 60 is a ring-shaped member, which includes an annular side wall 61, an annular top wall 62 and an annular bottom wall 63. Specifically, the annular top wall 62 and the annular bottom wall 63 are arranged in parallel, and the annular side wall 61 is perpendicular to both the annular top wall 62 and the annular bottom wall 63. Those skilled in the art can understand that the cross-section of the connection bracket 60 forms a substantially "C" - shaped structure. The annular top wall 62 serves to connect with the cover plate 70, and the annular bottom wall 63 serves to connect with the top cover 21.

[0067] Combined with Figure 9 and Figure 12 it can be seen that the cross-sectional shape of the connection piece 50 is substantially the same as that of the bracket 60. Therefore, during assembly, the connection piece 50 is arranged inside the bracket 60 and is embedded inside the bracket 60. Combined with Figure 14It can be seen that after the connecting piece 50 is assembled, the first section 51 fits against the annular top wall 62, the second section 52 fits against the annular bottom wall 63, and the third section 53 fits against the annular side wall 61. Therefore, the above-mentioned first fastener 31 is connected to the first section 51, and the second fastener 32 is connected to the second section 52.

[0068] Furthermore, both the bracket 60 and the cover plate 70 in this embodiment are plastic parts, and the above-mentioned arrangement of the connecting piece 50 can also strengthen the strength of the bracket 60. This can prevent the situation where the top cover 21 pushes up the bracket 60 during cooking and causes the bracket 60 to be crushed.

[0069] Combined with Figure 4 、 Figure 6 、 Figure 14 and Figure 16 It can be seen that the assembly sequence of the above structure is as follows:

[0070] 1. Assemble the lock ring 22 on the top cover 21 so that the flanging 222 abuts against the edge of the top cover 21;

[0071] 2. Insert the connecting piece 50 into the bracket 60;

[0072] 3. Set the bracket 60 on the top cover 21, and connect the second section 52 of the connecting piece 50, the annular bottom wall 63 and the top cover 21 together through the second fastener 32;

[0073] 4. Cover the cover plate 70 on the bracket 60, and connect the inner liner 10, the cover plate 70, the bracket 60 and the first section 51 together through the first fastener 31.

[0074] Furthermore, in the above assembly step 3, in order to facilitate the installation of the second fastener 32 from above, as shown in Figure 9 , a notch is provided at the position of the annular top wall 62 corresponding to the installation position of the second fastener 32 (that is, at the sixth connection hole 631 in Figure 9 ), so that a force application tool (such as a screwdriver) can extend downward from the notch to the second fastener 32.

[0075] As described above, the length of the second section 52 is greater than the length of the first section 51, and the purpose is to prevent the first section 51 from blocking the operation position of the second fastener 32.

[0076] In addition, it can be seen from Figure 9 that a counterbore is provided at the position of the annular bottom wall 63 for installing the second section 52, so that the connecting piece 50 can be quickly positioned during assembly.

[0077] As in Figure 13 and Figure 14As shown, in the technical solution of this embodiment, a first connection hole 12 is provided on the inner liner 10, a second connection hole 71 is provided on the cover plate 70, a third connection hole 621 is provided on the annular top wall 62, and a first threaded hole 54 is provided on the connection piece 50. The first fastener 31 includes a first connection bolt, and the first connection bolt passes through the first connection hole 12, the second connection hole 71, and the third connection hole 621 and is connected to the first threaded hole 54.

[0078] Further, the above-mentioned first threaded hole 54 is provided on the first section 51 of the connection piece 50. The first connection bolt fixes the cover plate 70, the annular top wall 62, and the first section 51 below the inner liner.

[0079] As Figure 15 and Figure 16 shown, a fifth connection hole 55 is provided on the connection piece 50, a sixth connection hole 631 is provided on the annular bottom wall 63, and a second threaded hole 213 is provided on the top cover 21. The second fastener 32 includes a second connection bolt, and the second connection bolt passes through the fifth connection hole 55 and the sixth connection hole 631 and is connected to the second threaded hole 213.

[0080] Further, the above-mentioned fifth connection hole is provided on the second section 52 of the connection piece 50. The second connection bolt connects the top cover 21 and the bracket 60 together, and the first connection bolt connects the bracket 60 and the cover plate 70 into one body, and fixes the integrally fixed cover plate 70, bracket 60, and top cover 21 below the inner liner 10.

[0081] As Figures 8 to 11 shown, in the technical solution of this embodiment, a third connection post 622 is provided on the annular top wall 62, the third connection hole 621 is provided on the third connection post 622, a protruding portion 72 that protrudes upward is provided on the cover plate 70, the second connection hole 71 is provided at the top of the protruding portion 72, and the third connection post 622 is received in the protruding portion 72 from bottom to top.

[0082] Combined Figure 14 it can be seen that the appearance of the protruding portion 72 also has a columnar structure, a concave depression is provided at the bottom of the protruding portion 72, and the third connection post 622 can extend into the protruding portion 72 from the bottom. The upper end of the protruding portion 72 is received in the first connection hole 12. The above-mentioned protruding portion 72 and the third connection post 622 thicken the structure at the first connection bolt, thereby further enhancing the connection strength.

[0083] As Figure 14As described above, in the technical solution of this embodiment, the pot lid assembly further includes a gasket 80. The gasket 80 is disposed on the inner liner 10 and covers the outside of the first connection hole 12. A fourth connection hole 81 is provided on the gasket 80, and a first connection bolt passes through the fourth connection hole 81. Among them, the outer diameter of the gasket 80 is greater than the aperture of the first connection hole 12, and the aperture of the fourth connection hole 81 is smaller than the outer diameter of the bolt head of the first connection bolt.

[0084] Specifically, after assembly, since the aperture of the fourth connection hole 81 is smaller than the outer diameter of the bolt head of the first connection bolt, the bolt head of the first connection bolt is stuck above the gasket 80, that is, the gasket 80 plays a role in supporting the first connection bolt. In addition, the outer diameter of the gasket 80 is greater than the inner diameter of the first connection hole 12, so the gasket 80 is supported on the upper side of the first connection hole 12, so that the first connection bolt, the cover plate 70, the bracket 60 and the top cover 21 will not disengage from the first connection hole 12.

[0085] As Figure 14 shown, in the technical solution of this embodiment, the pot lid assembly further includes an elastic member 90. The two ends of the elastic member 90 are respectively in contact with the inner liner 10 and the cover plate 70. Specifically, during the cooking process, the pressure in the cooking cavity will push up the whole formed by the top cover 21, the bracket 60 and the cover plate 70 and make it float upward. After the pressure in the cooking cavity decreases, the elastic member 90 makes the whole of the top cover 21, the bracket 60 and the cover plate 70 reset downward.

[0086] Preferably, the elastic member 90 is a spring. The spring is sleeved outside the third connection column 622, and the two ends are respectively in contact with the cover plate 70 and the lower side of the first connection hole 12.

[0087] This application also provides a cooking appliance. The cooking appliance includes the above-mentioned pot lid assembly. Preferably, the cooking appliance is an electric pressure cooker. Among them, the electric pressure cooker includes a pot body, and the pot lid assembly covers the pot body. Pot teeth are provided on the pot body. When the rotary lock ring 22 is rotated, the cover teeth 221 on the lock ring 22 can be locked or misaligned with the pot teeth to realize the locking or unlocking of the pot lid assembly and the pot body.

[0088] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A pot lid assembly, characterized in that, Comprising: Inner lining (10); Lock cover (20), disposed below the inner lining (10), the lock cover (20) includes a top cover (21) made of metal and a lock ring (22), the top cover (21) is fixedly connected below the inner lining (10) through a fastener (30), the lock ring (22) is rotatably disposed at the outer edge of the top cover (21), and a cover tooth (221) is provided on the lock ring (22); Positioning structure (40), disposed between the lock ring (22) and the top cover (21), the positioning structure (40) is adapted to prevent the lock ring (22) from disengaging downward from the top cover (21), The pot cover assembly further includes a connecting piece (50), the connecting piece (50) is disposed between the inner lining (10) and the top cover (21), the fastener (30) includes a first fastener (31) and a second fastener (32), the first fastener (31) connects the inner lining (10) and the connecting piece (50), and the second fastener (32) connects the connecting piece (50) and the top cover (21), The connecting piece (50) includes a first section (51) and a second section (52) disposed opposite to each other, and a third section (53) connecting the first section (51) and the second section (52), the first section (51) is connected to the first fastener (31), and the second section (52) is connected to the second fastener (32), The pot cover assembly further includes a connecting bracket (60) and a cover plate (70), the connecting bracket (60) includes an annular side wall (61) and an annular top wall (62) and an annular bottom wall (63) connected to the upper and lower sides of the annular side wall (61), the annular bottom wall (63) cooperates with the upper surface of the top cover (21), the cover plate (70) is covered on the annular top wall (62), and the top cover (21), the connecting bracket (60) and the cover plate (70) enclose a heat dissipation cavity. Wherein, the connecting piece (50) is disposed within the connecting bracket (60), the first fastener (31) connects the inner lining (10), the cover plate (70), the annular top wall (62) and the connecting piece (50), and the second fastener (32) connects the connecting piece (50), the annular bottom wall (63) and the top cover (21).

2. The pot lid assembly according to claim 1, characterized in that, The upper side of the lock ring (22) is turned inward to form a flange (222), the flange (222) overlaps with the outer edge of the top cover (21) and forms the positioning structure (40).

3. The pot lid assembly according to claim 2, wherein, A first connecting post (223) is provided on the flange (222), an arc-shaped guiding groove (11) is provided on the inner lining (10), and the first connecting post (223) passes through the arc-shaped guiding groove (11) from bottom to top.

4. The pot lid assembly according to claim 1, wherein A second connecting post (211) is provided on the top cover (21), the second connecting post (211) is adapted to be connected to the fastener (30), and a sheath (212) is provided outside the second connecting post (211).

5. The pot lid assembly according to claim 1, characterized in that, A first connection hole (12) is provided on the inner lining (10), a second connection hole (71) is provided on the cover plate (70), a third connection hole (621) is provided on the annular top wall (62), a first threaded hole (54) is provided on the connection piece (50), and the first fastener (31) includes a first connection bolt. The first connection bolt passes through the first connection hole (12), the second connection hole (71) and the third connection hole (621) and is connected to the first threaded hole (54).

6. The pot lid assembly according to claim 5, wherein, A third connection post (622) is provided on the annular top wall (62), the third connection hole (621) is provided on the third connection post (622), a protruding portion (72) protruding upward is provided on the cover plate (70), the second connection hole (71) is provided at the top of the protruding portion (72), and the third connection post (622) is received in the protruding portion (72) from bottom to top.

7. The pot lid assembly according to claim 5, characterized in that The pot lid assembly further includes a gasket (80). The gasket (80) is provided on the inner lining (10) and covers the outside of the first connection hole (12). A fourth connection hole (81) is provided on the gasket (80). The first connection bolt passes through the fourth connection hole (81). Wherein, the outer diameter of the gasket (80) is greater than the aperture of the first connection hole (12), and the aperture of the fourth connection hole (81) is smaller than the outer diameter of the bolt head of the first connection bolt.

8. The pot lid assembly according to claim 1, wherein, The pot lid assembly further includes an elastic member (90). Two ends of the elastic member (90) are respectively in contact with the inner lining (10) and the cover plate (70).

9. The pot lid assembly according to claim 1, wherein A fifth connection hole (55) is provided on the connection piece (50), a sixth connection hole (631) is provided on the annular bottom wall (63), a second threaded hole (213) is provided on the top cover (21), and the second fastener (32) includes a second connection bolt. The second connection bolt passes through the fifth connection hole (55) and the sixth connection hole (631) and is connected to the second threaded hole (213).

10. A cooking appliance, characterized in that, Including the pot lid assembly according to any one of claims 1 to 9.

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