Electric pressure cooker

Abstract

The present invention provides an electric pressure cooker, comprising: a pot body for containing food to be cooked, the pot body including a pot body main body and a heat preservation cover disposed inside the pot body main body, the upper end of the pot body main body having an avoidance opening, and the heat preservation cover being placed inside the pot body main body through the avoidance opening; a pot cover, the pot cover being disposed on the pot body, a first positioning structure and a second positioning structure, the first positioning structure being disposed at the avoidance opening, and the second positioning structure being disposed at the upper edge of the heat preservation cover. When the heat preservation cover is inserted into the avoidance opening from bottom to top, the first positioning structure and the second positioning structure are inserted and matched or clamped and matched to limit the relative circumferential position between the pot body main body and the heat preservation cover. The technical solution of the present invention solves the problem that the positioning method of the heat preservation cover of the electric pressure cooker in the prior art is complex and affects the assembly efficiency.

Description

Technical Field

[0001] The present invention relates to an electric pressure cooker, and more particularly to an improvement in the structure of a heat preservation cover of an electric pressure cooker. Background Art

[0002] An electric pressure cooker is a commonly used cooking appliance. Among them, the pot body of the electric pressure cooker includes a housing, a bottom shell provided on the lower side of the housing, a middle plate provided on the upper side of the housing, and a heat preservation cover provided inside the middle plate. In the prior art, the fixing method of the heat preservation cover is that the side edge of the heat preservation cover and the middle plate are positioned by screwing, and the bottom wall of the heat preservation cover and the bottom shell are fixed together by screwing. In the above structure, screws need to be driven horizontally between the heat preservation cover and the middle plate, so the operation is inconvenient and the assembly efficiency is affected. Summary of the Invention

[0003] The main object of the present invention is to provide an electric pressure cooker to solve the problem that the positioning method of the heat preservation cover of the electric pressure cooker in the prior art is complex and affects the assembly efficiency.

[0004] To achieve the above object, the present invention provides an electric pressure cooker, including: a pot body for containing food to be cooked, the pot body including a pot body main body and a heat preservation cover provided inside the pot body main body, the upper end of the pot body main body having an avoidance opening, and the heat preservation cover being placed inside the pot body main body through the avoidance opening; a pot cover provided on the pot body, a first positioning structure and a second positioning structure, the first positioning structure being provided at the avoidance opening, the second positioning structure being provided at the upper edge of the heat preservation cover, and when the heat preservation cover is inserted into the avoidance opening from bottom to top, the first positioning structure and the second positioning structure are inserted and matched or clamped and matched to limit the relative position in the circumferential direction between the pot body main body and the heat preservation cover.

[0005] Applying the technical solution of the present invention, when positioning the heat preservation cover, the heat preservation cover is passed downward through the avoidance opening, and then the first positioning structure and the second positioning structure are inserted and matched or clamped and matched, so as to realize the positioning between the heat preservation cover and the pot body main body. The above structure enables the heat preservation cover not to be positioned by screwing, thus simplifying the equipment steps. Therefore, the technical solution of the present invention solves the problem that the positioning method of the heat preservation cover of the electric pressure cooker in the prior art is complex and affects the assembly efficiency.

[0006] Further, the first positioning structure includes a first rib, and the second positioning structure includes a first positioning groove, and the first rib is embedded in the first positioning groove.

[0007] Further, the first rib extends upward, a flanging is provided at the upper edge of the heat preservation cover, and the first positioning groove is provided on the lower surface of the flanging.

[0008] Further, the first positioning structure further includes a second positioning groove, the second positioning structure further includes a second rib, and the second rib is embedded in the second positioning groove.

[0009] Further, first and second limiting plates are arranged at intervals on the inner side wall of the avoidance opening. A second positioning groove is formed between the first and second limiting plates. The first rib is located radially outside the first and second limiting plates and between the first and second limiting plates.

[0010] Further, the second rib is arranged on the lower surface of the flanging. The first positioning groove extends along the radial direction of the avoidance opening, and the side wall of the first positioning groove is connected to the second rib.

[0011] Further, the heat insulation cover includes a heat insulation cover body and a positioning ring sleeved outside the heat insulation cover body. A flanging is arranged at the upper edge of the heat insulation cover body. The positioning ring cooperates with the flanging, and the second positioning structure is arranged on the lower surface of the positioning ring.

[0012] Further, the upper edge of the heat insulation cover body is folded outward and then folded downward so that the flanging forms a receiving groove with an opening downward. The shape of the positioning ring is adapted to the receiving groove and is embedded upward into the receiving groove.

[0013] Further, the flanging is provided with outwardly protruding pot teeth, and the outer side wall of the positioning ring is provided with protruding parts, and the protruding parts are embedded into the pot teeth.

[0014] Further, the pot body includes a housing and a middle plate arranged on the upper side of the housing. Among them, the housing is in a cylindrical structure, the middle plate is in an annular structure, an avoidance opening is formed inside the middle plate, and the first positioning structure is arranged on the middle plate.

[0015] Further, an annular groove is arranged on the upper surface of the middle plate. The annular groove includes a bottom wall, a first side wall connected to the inner side of the bottom wall, and a second side wall connected to the outer side of the bottom wall. The first positioning structure is arranged on the first side wall.

[0016] Further, the pot body further includes a bottom shell arranged on the lower side of the housing. A fixing structure is arranged between the bottom shell and the heat insulation cover, and the fixing structure fixes the heat insulation cover on the pot body.

[0017] Further, a first connection hole is arranged on the bottom shell, a second connection hole is arranged on the heat insulation cover, and the fixing structure is a connection bolt passing through the first connection hole and the second connection hole. Description of the Drawings

[0018] The specification drawings forming a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 A cross-sectional schematic view showing an embodiment of an electric pressure cooker according to the present invention is shown;

[0020] Figure 2 shows Figure 1 the enlarged schematic view at position A in

[0021] Figure 3 shows Figure 1 the enlarged schematic view at position B in

[0022] Figure 4 shows Figure 1 the exploded schematic view of the pot body of the electric pressure cooker in

[0023] Figure 5 shows Figure 4 the enlarged schematic view at position C in

[0024] Figure 6 shows Figure 1 the schematic view of another perspective after the pot body of the electric pressure cooker is disassembled in

[0025] Figure 7 shows Figure 6 the enlarged schematic view at position D in

[0026] Figure 8 shows Figure 1 the structural schematic view of the positioning ring of the cooking appliance in ; and

[0027] Figure 9 shows Figure 8 the enlarged schematic view at position E in

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 10, pot body; 11, pot body main body; 111, avoidance opening; 112, outer shell; 113, middle plate; 114, annular groove; 115, bottom wall; 116, first side wall; 117, second side wall; 118, bottom shell; 119, first connection hole; 12, heat preservation cover; 121, flanging; 122, heat preservation cover main body; 123, positioning ring; 124, receiving groove; 125, pot teeth; 126, protruding part; 127, second connection hole; 20, pot lid; 30, first positioning structure; 31, first rib; 32, second positioning groove; 33, first limiting plate; 34, second limiting plate; 40, second positioning structure; 41, first positioning groove; 42, second rib; 50, fixing structure. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application or its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] As Figure 1 and Figure 2 As shown, the electric pressure cooker of this embodiment includes a pot body 10, a pot lid 20, a first positioning structure 30, and a second positioning structure 40. Among them, the pot body 10 is used to hold the food to be cooked, and the pot body 10 includes a pot body main body 11 and a heat preservation cover 12 arranged in the pot body main body 11. The upper end of the pot body main body 11 has an avoidance opening 111, and the heat preservation cover 12 is placed in the pot body main body 11 through the avoidance opening 111. The pot lid 20 is arranged on the pot body 10, the first positioning structure 30 is arranged at the avoidance opening 111, and the second positioning structure 40 is arranged at the upper edge of the heat preservation cover 12. When the heat preservation cover 12 is inserted into the avoidance opening 111 from bottom to top, the first positioning structure 30 and the second positioning structure 40 are inserted and matched or clamped and matched to limit the relative circumferential position between the pot body main body 11 and the heat preservation cover 12.

[0034] Applying the technical solution of this embodiment, when positioning the heat preservation cover, the heat preservation cover 12 is passed downward through the avoidance opening 111, and then the first positioning structure 30 and the second positioning structure 40 are inserted and matched or clamped and matched, so as to realize the positioning between the heat preservation cover 12 and the pot body main body 11. The above structure enables the heat preservation cover 12 not to be positioned by screwing, thus simplifying the equipment steps. Therefore, the technical solution of this embodiment solves the problem that the positioning method of the heat preservation cover of the electric pressure cooker in the prior art is complex and affects the assembly efficiency.

[0035] As Figures 4 to 7As shown, in the technical solution of this embodiment, the first positioning structure 30 includes a first rib 31, the second positioning structure 40 includes a first positioning groove 41, and the first rib 31 is embedded in the first positioning groove 41. Specifically, when the heat preservation cover 12 is placed at the avoidance opening 111, the first rib 31 is embedded in the first positioning groove 41, thereby fixing the relative positions between the pot body 11 and the heat preservation cover 12.

[0036] As Figure 2 shown, in the technical solution of this embodiment, the first rib 31 extends upward, a flanging 121 is provided at the upper edge of the heat preservation cover 12, and the first positioning groove 41 is provided on the lower surface of the flanging 121. The above structure makes the positioning between the heat preservation cover 12 and the pot body 11 more stable. At the same time, the user cannot see the first rib 31 and the first positioning groove 41 from the appearance of the product, thereby improving the appearance of the product.

[0037] As Figures 4 to 7 shown, in the technical solution of this embodiment, the first positioning structure 30 further includes a second positioning groove 32, the second positioning structure 40 further includes a second rib 42, and the second rib 42 is embedded in the second positioning groove 32. The second positioning groove 32 and the second rib 42 can further enhance the positioning effect.

[0038] As Figure 5 shown, in the technical solution of this embodiment, a first limiting plate 33 and a second limiting plate 34 are provided on the inner side wall of the avoidance opening 111 at intervals. A second positioning groove 32 is formed between the first limiting plate 33 and the second limiting plate 34. The first rib 31 is located radially outside the first limiting plate 33 and the second limiting plate 34, and the first rib 31 is located between the first limiting plate 33 and the second limiting plate 34. In this embodiment, the first limiting plate 33 and the second limiting plate 34 are provided on the inner surface of the avoidance opening 111. The second positioning groove 32 and the first rib 31 are circumferentially correspondingly arranged along the avoidance opening 111. Of course, in an embodiment not shown, the second positioning groove 32 and the first rib 31 may also be arranged in a staggered manner along the circumference of the avoidance opening 111.

[0039] As Figure 8 and Figure 9 shown, in the technical solution of this embodiment, the second rib 42 is provided on the lower surface of the flanging 121, the first positioning groove 41 extends along the radial direction of the avoidance opening, and the side wall of the first positioning groove 41 is connected to the second rib 42. The above structure makes the structure of the second rib 42 and the first positioning groove 41 compact and is convenient for injection molding.

[0040] As Figure 4 、 Figure 6 、 Figure 8 and Figure 9As shown, in the technical solution of this embodiment, the heat preservation cover 12 includes a heat preservation cover body 122 and a positioning ring 123 sleeved outside the heat preservation cover body 122. A flanging 121 is provided at the upper edge of the heat preservation cover body 122. The positioning ring 123 cooperates with the flanging 121, and the second positioning structure 40 is arranged on the lower surface of the positioning ring 123. Specifically, since the heat preservation cover body 122 is made of a metal material, it is difficult to form the first positioning groove 41 and the second rib 42 on the heat preservation cover body 122. In this example, the positioning ring 123 is made of a plastic part, and the first positioning groove 41 and the second rib 42 can be processed by integral injection molding, with low processing difficulty. Further, the positioning ring 123 should be made of a heat-resistant plastic material. The above structure can reduce the production and processing difficulty.

[0041] As Figure 4 and Figure 6 shown, in the technical solution of this embodiment, the upper edge of the heat preservation cover body 122 is folded outward and then downward so that the flanging 121 forms a receiving groove 124 with an opening downward. The shape of the positioning ring 123 is adapted to the receiving groove 124 and is embedded upward into the receiving groove 124. Specifically, the positioning ring 123 is embedded into the receiving groove 124 from bottom to top, so that the second positioning structure 40 is formed at the flanging 121.

[0042] As Figure 4 and Figure 9 shown, in the technical solution of this embodiment, the flanging 121 is provided with outwardly protruding pot teeth 125, and the outer side wall of the positioning ring 123 is provided with protruding parts 126, and the protruding parts 126 are embedded into the pot teeth 125. Specifically, the protruding parts 126 make the shape of the positioning ring 123 adapted to the shape of the flanging 121, and the connection between the positioning ring 123 and the flanging 121 is more stable.

[0043] As Figure 1 shown, in the technical solution of this embodiment, the pot body 11 includes a housing 112 and a middle plate 113 arranged on the upper side of the housing 112. Among them, the housing 112 has a cylindrical structure, the middle plate 113 has an annular structure, an avoidance opening 111 is formed inside the middle plate 113, and the first positioning structure 30 is arranged on the middle plate 113. In this embodiment, the housing 112 and the middle plate 113 are an integral structure. Of course, the housing 112 and the middle plate 113 can also be a separable split structure.

[0044] As Figure 5As shown, in the technical solution of this embodiment, an annular groove 114 is provided on the upper surface of the middle plate 113. The annular groove 114 includes a bottom wall 115, a first side wall 116 connected to the inner side of the bottom wall 115, and a second side wall 117 connected to the outer side of the bottom wall 115. The first positioning structure 30 is provided on the first side wall 116. Specifically, the first side wall 116 is the inner side wall, and the second side wall 117 is the outer side wall. The first rib 31 is provided on the top wall of the first side wall 116. The second positioning groove 32 is provided on the inner side of the first side wall 116.

[0045] As Figure 1 and Figure 3 shown, in the technical solution of this embodiment, the pot body 11 further includes a bottom shell 118 provided on the lower side of the outer shell 112. A fixing structure 50 is provided between the bottom shell 118 and the heat preservation cover 12, and the fixing structure 50 fixes the heat preservation cover 12 on the pot body 11.

[0046] As Figure 1 and Figure 3 shown, in the technical solution of this embodiment, a first connection hole 119 is provided on the bottom shell 118, and a second connection hole 127 is provided on the heat preservation cover 12. The fixing structure 50 is a connection bolt passing through the first connection hole 119 and the second connection hole 127. The connection bolt fixes the heat preservation cover 12 on the pot body 11.

[0047] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0048] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0049] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0050] In addition, it should be noted that the use of words such as "first", "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0051] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electric pressure cooker, characterized in that, it includes: A pot body (10) for containing the food to be cooked. A heating device is provided in the pot body (10). The pot body (10) includes a pot body main body (11) and a heat preservation cover (12) provided in the pot body main body (11). The upper end of the pot body main body (11) has an avoidance opening (111), and the heat preservation cover (12) is placed in the pot body main body (11) through the avoidance opening (111); A pot cover (20), the pot cover (20) is provided on the pot body (10), A first positioning structure (30) and a second positioning structure (40). The first positioning structure (30) is provided at the avoidance opening (111), and the second positioning structure (40) is provided at the upper edge of the heat preservation cover (12). When the heat preservation cover (12) is inserted into the avoidance opening (111) from bottom to top, the first positioning structure (30) and the second positioning structure (40) are inserted or clamped together to limit the relative circumferential position between the pot body main body (11) and the heat preservation cover (12); The first positioning structure (30) includes a first rib (31), and the second positioning structure (40) includes a first positioning groove (41), and the first rib (31) is embedded in the first positioning groove (41); The first rib (31) extends upward. A flanging (121) is provided at the upper edge of the heat preservation cover (12), and the first positioning groove (41) is provided on the lower surface of the flanging (121); The pot body main body (11) includes a housing (112) and a middle plate (113) provided on the upper side of the housing (112). Among them, the housing (112) has a cylindrical structure, the middle plate (113) has an annular structure, the inner side of the middle plate (113) forms the avoidance opening (111), and the first rib (31) is provided on the middle plate (113).

2. The electric pressure cooker according to claim 1, characterized in that, The first positioning structure (30) further includes a second positioning groove (32), and the second positioning structure (40) further includes a second rib (42), and the second rib (42) is embedded in the second positioning groove (32).

3. The electric pressure cooker according to claim 2, characterized in that, First limiting plates (33) and second limiting plates (34) are spaced apart on the inner side wall of the avoidance opening (111). A second positioning groove (32) is formed between the first limiting plate (33) and the second limiting plate (34). The first rib (31) is located radially outside the first limiting plate (33) and the second limiting plate (34), and the first rib (31) is located between the first limiting plate (33) and the second limiting plate (34).

4. The electric pressure cooker according to claim 2, characterized in that, The second rib (42) is arranged on the lower surface of the flanging (121), the first positioning groove (41) extends along the radial direction of the avoidance opening, and the side wall of the first positioning groove (41) is connected to the second rib (42).

5. The electric pressure cooker according to claim 1, characterized in that the heat preservation cover (12) includes a heat preservation cover body (122) and a positioning ring (123) sleeved outside the heat preservation cover body (122). A flanging (121) is arranged at the upper edge of the heat preservation cover body (122). The positioning ring (123) cooperates with the flanging (121), and the second positioning structure (40) is arranged on the lower surface of the positioning ring (123).

6. The electric pressure cooker according to claim 5, characterized in that the upper edge of the heat preservation cover body (122) is folded outward and then folded downward so that the flanging (121) forms a receiving groove (124) with an opening downward. The shape of the positioning ring (123) is adapted to the receiving groove (124) and is embedded upward into the receiving groove (124).

7. The electric pressure cooker according to claim 6, characterized in that the flanging (121) is provided with outwardly protruding pot teeth (125), and the outer side wall of the positioning ring (123) is provided with protruding portions (126). The protruding portions (126) are embedded into the pot teeth (125).

8. The electric pressure cooker according to claim 1, characterized in that the upper surface of the middle plate (113) is provided with an annular groove (114). The annular groove (114) includes a bottom wall (115), a first side wall (116) connected to the inner side of the bottom wall (115), and a second side wall (117) connected to the outer side of the bottom wall (115). The first positioning structure (30) is arranged on the first side wall (116).

9. The electric pressure cooker according to claim 1, characterized in that the pot body (11) further includes a bottom shell (118) arranged on the lower side of the outer shell (112). A fixing structure (50) is arranged between the bottom shell (118) and the heat preservation cover (12). The fixing structure (50) fixes the heat preservation cover (12) on the pot body (11).

10. The electric pressure cooker according to claim 9, characterized in that the bottom shell (118) is provided with a first connection hole (119), the heat preservation cover (12) is provided with a second connection hole (127), and the fixing structure (50) is a connection bolt passing through the first connection hole (119) and the second connection hole (127).

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