Pressure Cooking Appliances

Abstract

A pressure cooking device comprises: a pot body for holding food to be cooked; a cover body, which is arranged on the pot body, and has a locking position for locking on the pot body and an unlocking position that can be opened from the pot body; a sealing ring, which is arranged between the cover body and the pot body to seal the gap between the cover body and the pot body, and a friction reduction structure is arranged between the surface of the sealing ring close to the pot body and the pot body, so that when the cover body rotates between the locking position and the unlocking position, the friction area between the sealing ring and the pot body is reduced. The technical solution of the present invention can effectively solve the problem of short service life of the pot body of the pressure cooking device in the prior art.

Description

Technical Field

[0001] The present invention relates to a pressure cooking appliance, and more particularly to an improvement of a sealing ring of a pressure cooking appliance. Background Art

[0002] A C-shaped electric pressure cooker includes a pot body and a pot lid covering the pot body. The pot body includes an outer pot, a heat preservation cover, and an inner pot arranged from outside to inside in sequence. A pot tooth is arranged on the heat preservation cover, and a cover tooth matching with the pot tooth is arranged on the pot lid. The electric pressure cooker further includes a heating device for heating the inner pot, and the bottom of the inner pot is in direct contact with the heating device. During the process of opening and closing the pot lid, since the sealing ring is in complete contact with the pot lid and the inner pot, during the rotation of the pot lid, the entire inner pot also rotates with the pot lid under the action of friction force, resulting in the friction between the bottom of the inner pot and the surface of the heating device, and further causing wear on the surface of the bottom of the inner pot and the heating device. Summary of the Invention

[0003] The main object of the present invention is to provide a pressure cooking appliance to solve the problem of short service life of the pot body of the pressure cooking appliance in the prior art.

[0004] To achieve the above object, the present invention provides a pressure cooking appliance, including: a pot body for containing food to be cooked; a cover body covering the pot body, the cover body having a locked position locked on the pot body and an unlocked position that can be opened from the pot body; a sealing ring arranged between the cover body and the pot body to seal the gap between the cover body and the pot body, and a friction reducing structure is arranged between the sealing ring and the pot body so that when the cover body rotates between the locked position and the unlocked position, the friction area between the sealing ring and the pot body is reduced; a heating device for heating the pot body.

[0005] Applying the technical solution of the present invention, a friction reducing structure is arranged between the sealing ring and the pot body. When the cover body rotates between the locked position and the unlocked position, the friction reducing structure can reduce the friction area between the sealing ring and the pot body, so that the pot body is not easily rotated together with the cover body, thereby reducing the wear between the pot body and the external structure, and solving the problem of short service life of the pot body of the pressure cooking appliance in the prior art.

[0006] Further, the friction reducing structure is a protrusion.

[0007] Further, the friction reducing structure is arranged on the lower surface of the sealing ring.

[0008] Further, a convex rod penetrates through the sealing ring, one end of the convex rod protruding from the sealing ring cooperates with the cover body, and the other end of the convex rod protruding from the sealing ring cooperates with the pot body and forms a friction reducing structure.

[0009] Furthermore, the protruding rod includes a protruding rod body and a head arranged at both ends of the protruding rod body. A mounting hole for mounting the protruding rod is provided on the sealing ring. The size of the protruding rod body is less than or equal to the size of the mounting hole. The size of the head is larger than the size of the mounting hole to prevent the protruding rod from escaping from the mounting hole. The head of the protruding rod close to the pot body forms a friction reducing structure.

[0010] Furthermore, the length of the protruding rod body is greater than the depth of the mounting hole.

[0011] Furthermore, the sealing ring includes a sealing ring body and an upper lip and a lower lip arranged on the inner ring of the sealing ring body. The sealing ring body is located between the cover body and the pot body, the upper lip is fitted with the cover body, and the lower lip is fitted with the pot body. The friction reduction structure is arranged between the surface of the sealing ring body close to the pot body and the pot body.

[0012] Furthermore, the pressure cooking appliance is an electric pressure cooker, and the pot body includes an outer pot, a heat preservation cover and an inner pot which are arranged in sequence from the outside to the inside. The heating device supports the inner pot and heats the inner pot. The sealing ring is arranged between the cover body and the inner pot. The heat preservation cover is provided with pot teeth, and the cover body is provided with cover teeth. When the pot teeth and the cover teeth are matched, the cover body is in a locked position, and when the pot teeth and the cover teeth are separated, the cover body is in an unlocked position.

[0013] Furthermore, the inner surface of the cover body has a horizontal abutment surface, the inner pot includes an inner pot body and a pot edge arranged at the upper opening of the inner pot body and extending outward, and the sealing ring body is located between the horizontal abutment surface and the pot edge.

[0014] Furthermore, the friction reducing structures are multiple and are arranged along the circumference of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic longitudinal section view of an embodiment of a pressure cooking device according to the present invention is shown;

[0017] Figure 2 Shows Figure 1 An enlarged structural schematic diagram of a pressure cooking device at A;

[0018] Figure 3 Shows Figure 1 A schematic diagram of a three-dimensional structure of a sealing ring and a protruding rod of a pressure cooking device; and

[0019] Figure 4 Shows Figure 3 Schematic diagram of a top view of a sealing ring of a pressure cooking device.

[0020] The above drawings include the following reference numerals:

[0021] 10. pot body; 11. outer pot; 12. heat preservation cover; 13. inner pot; 131. inner pot body; 132. pot edge; 20. cover body; 21. horizontal abutment surface; 30. sealing ring; 31. sealing ring body; 32. upper lip edge; 33. lower lip edge; 311. mounting hole; 40. protruding rod; 41. protruding rod body; 42. head; 50. heating device. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figure 1 As shown, the pressure cooking device of this embodiment includes: a pot body 10, a cover body 20, a sealing ring 30 and a heating device 50. The pot body 10 is used to hold food to be cooked. The cover body 20 is covered on the pot body 10, and the cover body 20 has a locking position locked on the pot body 10 and an unlocking position that can be opened from the pot body 10. The sealing ring 30 is arranged between the cover body 20 and the pot body 10 to seal the gap between the cover body 20 and the pot body 10, and a friction reduction structure is arranged between the sealing ring 30 and the pot body 10, so that when the cover body 20 rotates between the locking position and the unlocking position, the friction area between the sealing ring 30 and the pot body 10 is reduced. The heating device 50 is used to heat the pot body 10.

[0024] By applying the technical solution of this embodiment, a friction-reducing structure is provided between the sealing ring 30 and the pot body 10. When the cover body 20 rotates between the locked position and the unlocked position, the friction-reducing structure can reduce the friction area between the sealing ring 30 and the pot body 10, thereby making it difficult for the pot body 10 to rotate together with the cover body 20, thereby reducing the wear between the pot body 10 and the external structure, and solving the problem of short service life of the pot body of the pressure cooking device in the prior art.

[0025] like Figures 1 to 3 As shown, in this embodiment, the friction reducing structure is a protrusion. When the cover 20 rotates between the locked position and the unlocked position, the protrusion props up part of the lower surface of the sealing ring 30 from the inner surface of the pot body 10, thereby reducing the contact area between the sealing ring 30 and the pot body 10. The above structure is simple and easy to process.

[0026] like Figures 1 to 3 As shown, in this embodiment, the friction reduction structure is arranged on the lower surface of the sealing ring 30. The above structure is simple and easy to process. Of course, those skilled in the art should know that the friction reduction structure can also be arranged on the inner surface of the pot body 10.

[0027] Preferably, in this embodiment, the friction reducing structure is made of metal material.

[0028] like Figures 1 to 3 As shown, in this embodiment, a convex rod 40 is provided on the sealing ring 30, one end of the convex rod 40 extending from the sealing ring 30 cooperates with the cover body 20, and the other end of the convex rod 40 extending from the sealing ring 30 cooperates with the pot body 10 to form a friction reduction structure. The above structure is simple and easy to process and assemble.

[0029] like Figures 1 to 4 As shown, in this embodiment, the protruding rod 40 includes a protruding rod body 41 and a head 42 arranged at both ends of the protruding rod body 41, and a mounting hole 311 for mounting the protruding rod 40 is provided on the sealing ring 30. The size of the protruding rod body 41 is less than or equal to the size of the mounting hole 311, and the size of the head 42 is larger than the size of the mounting hole 311 to prevent the protruding rod 40 from coming out of the mounting hole 311. The head 42 of the protruding rod 40 close to the pot body 10 forms a friction reduction structure. When installing, it is only necessary to extend the head 42 from one end of the mounting hole 311 and extend it from the other end of the mounting hole 311.

[0030] When the pot body 10 is pressed upward, the lid body 20 will move upward with the sealing ring 30, which may cause the sealing area between the sealing ring 30 and the pot body 10 to be greatly reduced, or the sealing area is 0, resulting in poor sealing effect. Figure 2 As shown, in this embodiment, the length of the protruding rod body 41 is greater than the depth of the mounting hole 311. The above structure allows the sealing ring 30 to be adjusted relative to the protruding rod up and down, ensuring that the sealing area between the sealing ring 30 and the pot body 10 is within a predetermined range, thereby ensuring the sealing performance of the pressure cooking device.

[0031] like Figure 2 As shown, in this embodiment, the sealing ring 30 includes a sealing ring body 31 and an upper lip 32 and a lower lip 33 arranged on the inner circle of the sealing ring body 31. The sealing ring body 31 is located between the cover body 20 and the pot body 10, the upper lip 32 is fitted with the cover body 20, and the lower lip 33 is fitted with the pot body 10. The friction reduction structure is arranged between the surface of the sealing ring body 31 close to the pot body 10 and the pot body 10. The above structure is simple and easy to implement. Specifically, in this embodiment, the cover body 20 has a first curved surface, the upper lip 32 is a first curved lip matched with the first curved surface, the pot body 10 has a second curved surface, and the lower lip 33 is a second curved lip matched with the second curved surface. When the pot body 10 is pressed upward, the first curved lip and the second curved lip can adjust themselves on the first curved surface and the second curved surface, thereby ensuring the sealing of the pressure cooking device.

[0032] like Figure 1As shown, in this embodiment, the pressure cooking device is an electric pressure cooker, the pot body 10 includes an outer pot 11, a heat preservation cover 12 and an inner pot 13 arranged in sequence from the outside to the inside, the heating device 50 supports the inner pot 13 and heats the inner pot 13, the sealing ring 30 is arranged between the cover body 20 and the inner pot 13, the heat preservation cover 12 has pot teeth, and the cover body 20 has cover teeth. When the pot teeth and the cover teeth are matched, the cover body 20 is in a locked position, and when the pot teeth and the cover teeth are separated, the cover body 20 is in an unlocked position. In this embodiment, the design of the friction reduction structure makes it difficult for the cover body 20 to drive the inner pot 13 to rotate, so the bottom of the inner pot 13 is not easy to rub against the heating device 50, so that the inner pot 13 and the heating device 50 are not easy to wear, thereby improving the service life of the inner pot 13 and the heating device 50.

[0033] like Figure 1 As shown, in this embodiment, the inner surface of the cover body 20 has a horizontal abutting surface 21, the inner pot 13 includes an inner pot body 131 and a pot edge 132 arranged at the upper opening of the inner pot body 131 and extending outward, and the sealing ring body 31 is located between the horizontal abutting surface 21 and the pot edge 132. The above structure is simple, easy to assemble, and can simultaneously achieve the best friction reduction effect and sealing effect.

[0034] like Figure 3 and Figure 4 As shown, in this embodiment, the friction reducing structures are multiple and are arranged along the circumference of the sealing ring 30. The above structure can further reduce the friction area, thereby ensuring the service life of the pot body 10.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure cooking device, characterized in that: include: A pot body (10) for holding food to be cooked; A cover body (20) is arranged on the pot body (10), and the cover body (20) has a locking position for locking on the pot body (10) and an unlocking position for being able to be opened from the pot body (10); a sealing ring (30) arranged between the cover body (20) and the pot body (10) to seal a gap between the cover body (20) and the pot body (10); a friction reducing structure is arranged between the sealing ring (30) and the pot body (10) so that when the cover body (20) rotates between the locking position and the unlocking position, the friction area between the sealing ring (30) and the pot body (10) is reduced; A heating device (50) for heating the pot body (10); The sealing ring (30) is provided with a convex rod (40), one end of the convex rod (40) extending from the sealing ring (30) cooperates with the cover body (20), and the other end of the convex rod (40) extending from the sealing ring (30) cooperates with the pot body (10) to form the anti-friction structure, and the anti-friction structure is a protrusion.

2. The pressure cooking device according to claim 1, characterized in that: The friction reducing structure is arranged on the lower surface of the sealing ring (30).

3. The pressure cooking device according to claim 1, characterized in that: The convex rod (40) comprises a convex rod body (41) and heads (42) arranged at both ends of the convex rod body (41); a mounting hole (311) for mounting the convex rod (40) is arranged on the sealing ring (30); the size of the convex rod body (41) is less than or equal to the size of the mounting hole (311); the size of the head (42) is greater than the size of the mounting hole (311) to prevent the convex rod (40) from falling out of the mounting hole (311); and the head (42) of the convex rod (40) close to the pot body (10) forms the friction reduction structure.

4. The pressure cooking device according to claim 3, characterized in that: The length of the protruding rod body (41) is greater than the depth of the mounting hole (311).

5. The pressure cooking device according to claim 1, characterized in that: The sealing ring (30) comprises a sealing ring body (31) and an upper lip edge (32) and a lower lip edge (33) arranged on the inner circle of the sealing ring body (31); the sealing ring body (31) is located between the cover body (20) and the pot body (10); the upper lip edge (32) is in contact with the cover body (20); the lower lip edge (33) is in contact with the pot body (10); and the friction reduction structure is arranged between the surface of the sealing ring body (31) close to the pot body (10) and the pot body (10).

6. The pressure cooking device according to claim 5, characterized in that The pressure cooking device is an electric pressure cooker. The pot body (10) comprises an outer pot (11), a heat preservation cover (12) and an inner pot (13) which are arranged in sequence from the outside to the inside. The heating device (50) supports the inner pot (13) and heats the inner pot (13). The sealing ring (30) is arranged between the cover body (20) and the inner pot (13). The heat preservation cover (12) has pot teeth, and the cover body (20) has cover teeth. When the pot teeth cooperate with the cover teeth, the cover body (20) is in the locked position. When the pot teeth are separated from the cover teeth, the cover body (20) is in the unlocked position.

7. The pressure cooking device according to claim 6, characterized in that The inner surface of the cover body (20) has a horizontal abutment surface (21); the inner pot (13) comprises an inner pot body (131) and a pot edge (132) arranged at the upper opening of the inner pot body (131) and extending outward; the sealing ring body (31) is located between the horizontal abutment surface (21) and the pot edge (132).

8. The pressure cooking device according to claim 1, characterized in that The friction reducing structures are multiple and are arranged along the circumference of the sealing ring (30).

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