Pot cover and pressure cooker having the same

Abstract

The present invention provides a pot cover and a pressure cooker having the same, wherein the pot cover is an openable cover arranged on a pot body, the pot body is provided with pot teeth, and the pot cover comprises: a pot cover body, the pot cover body is provided with cover teeth matched with the pot teeth; a pot cover support part, the pot cover support part is arranged on the pot cover body, and the pot cover support part is fixed to the pot body to limit circumferential rotation; a transmission structure, the transmission structure comprises a gear set that cooperates with each other, the gear set is arranged between the pot cover support part and the pot cover body, and the gear set is connected to the pot cover body to drive the pot cover body to rotate around its central axis relative to the pot cover body through the transmission structure. The technical solution of the present invention effectively solves the problem of unstable transmission ratio of the pot cover when rotating in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of small household appliances, and in particular to a pot cover and a pressure cooker having the same. Background Art

[0002] There are many types of existing pressure cooker lid opening and closing mechanisms, mainly divided into drop-lid type, screw-on type, and clamp type. The screw-on type pressure cooker is the most widely used due to its simple structure, convenient manufacturing, and low cost. The existing screw-on type pressure cooker is rotated by connecting rod transmission, which makes the transmission ratio of the lid unstable when the lid is opened and closed. Summary of the invention

[0003] The main purpose of the present invention is to provide a pot cover and a pressure cooker having the same, so as to solve the problem of unstable transmission ratio of the pot cover when rotating in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a pot cover, which can be opened and closed and is arranged on a pot body, and the pot body is provided with pot teeth. The pot cover comprises: a pot cover body, which is provided with cover teeth matching with the pot teeth; a pot cover support part, which is arranged on the pot cover body, and the pot cover support part is fixed to the pot body to limit circumferential rotation; a transmission structure, which comprises a gear set that matches with each other, the gear set is arranged between the pot cover support part and the pot cover body, and the gear set is connected to the pot cover body to drive the pot cover body to rotate around its central axis relative to the pot cover body through the transmission structure.

[0005] Furthermore, the transmission structure also includes a driving part, and the gear set includes a first gear connected to the driving part and a second gear matched with the first gear, and the second gear is connected to the pot cover body to be linked with the pot cover body.

[0006] Furthermore, the pot cover support portion includes a shell, and the pot cover also includes a bottom plate. The bottom plate and the shell are fixedly connected to form a accommodating space. The transmission structure is arranged in the accommodating space. The transmission structure also includes a fixed shaft fixed to the second gear, and the fixed shaft passes through the bottom plate and is fixed to the pot cover body.

[0007] Furthermore, the driving part includes a pivot shaft, the central axis of the pivot shaft is perpendicular to the central axis of the pot cover body, the first gear is arranged on the pivot shaft, the central axis of the second gear is perpendicular to the central axis of the first gear, and the second gear and the first gear are externally meshed.

[0008] Furthermore, a first gear hole and a second gear hole are provided on the pivot shaft, and the transmission structure further comprises an elastic top block, and the first gear hole and the second gear hole respectively cooperate with the elastic top block as the pivot shaft rotates.

[0009] Furthermore, a stopper is provided on the pivot shaft, and the stopper abuts against the pot cover support portion as the pivot shaft rotates, so that when the pot cover body is in an open state, the stopper contacts the pot cover support portion.

[0010] Furthermore, the driving part includes a pivot shaft, the central axis of the pivot shaft coincides with the central axis of the pot cover body, the first gear is arranged on the pivot shaft, and the first gear and the second gear are internally meshed gear transmission.

[0011] Furthermore, a third gear is arranged on the pivot shaft, and the pot cover also includes an operating part exposed from the pot cover support part, the central axis of the operating part is parallel to the central axis of the pot cover body, and the operating part can move up and down along its central axis, and the operating part is provided with a rack meshing with the third gear.

[0012] Furthermore, the operating part includes a cover opening button assembly and a cover closing button assembly, and there are two racks, which are respectively arranged on the periphery of the cover opening button assembly and the cover closing button assembly, and the cover opening button assembly and the cover closing button assembly are respectively arranged on opposite sides of the third gear, and the third gear includes two sections of teeth respectively spaced apart from the cover opening button assembly and the cover closing button assembly.

[0013] Furthermore, a fourth gear and a fifth gear are arranged at intervals on the pivot shaft, and the pot cover also includes a lid opening button assembly and a lid closing button assembly respectively arranged on both sides of the pivot shaft, the lid opening button assembly and the lid closing button assembly are parallel to the central axis of the pot cover body, and the lid opening button assembly and the lid closing button assembly on both sides of the pivot shaft are provided with racks respectively meshing with the fourth gear and the fifth gear.

[0014] According to another aspect of the present invention, a pressure cooker is provided, comprising a cooker body and a cooker cover arranged on the cooker body, wherein the cooker cover is the cooker cover mentioned above.

[0015] By applying the technical solution of the present invention, when the pot cover is used, the transmission structure drives the pot cover body to rotate. The transmission structure is a gear set transmission, which makes the transmission ratio of the transmission structure relatively stable. The technical solution of the present invention effectively solves the problem of unstable transmission ratio of the pot cover when rotating in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a pressure cooker according to the first embodiment of the present invention is shown;

[0018] Figure 2 Shows Figure 1 A cross-sectional schematic diagram of

[0019] Figure 3 Shows Figure 2 A magnified schematic diagram of point A;

[0020] Figure 4 Shows Figure 1 A schematic diagram of the structure of a pot cover body;

[0021] Figure 5 Shows Figure 1 A schematic diagram of the structure of a pot cover support portion;

[0022] Figure 6 Shows Figure 1 A schematic structural diagram of a first gear;

[0023] Figure 7 Shows Figure 1 A cross-sectional schematic diagram of a pot cover support portion;

[0024] Figure 8 Shows Figure 1 A schematic diagram of another angle of the pot cover support portion;

[0025] Fig. 9 Shows Figure 1 Schematic diagram of the internal structure of the pot cover;

[0026] Fig.10 Shows Figure 1 A schematic diagram of the structure of the transfer plate; and

[0027] Fig.11 A schematic diagram of the three-dimensional structure of a second embodiment of a pressure cooker according to the present invention is shown.

[0028] The above drawings include the following reference numerals:

[0029] 10. Pot cover body; 11. Positioning column; 20. Pot cover support part; 21. Shell; 22. Bottom plate; 23. Elastic top block; 24. Stop groove; 30. Transmission structure; 31. Gear set; 311. First gear; 312. Second gear; 313. Elastic member; 32. Turn plate; 33. Driving arm; 40. Driving part; 41. Operating part; 42. Open cover button assembly; 43. Close cover button assembly; 44. Pivot shaft; 441. First gear hole; 442. Second gear hole; 443. Stop block; 50. Pot body. DETAILED DESCRIPTION

[0030] 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.

[0031] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.

[0034] like Figures 1 to 10 As shown, the pot cover of the first embodiment can be opened and closed and is arranged on the pot body 50, and the pot body 50 is provided with pot teeth. The pot cover includes: a pot cover body 10, a pot cover support part 20 and a transmission structure 30. The pot cover body 10 is provided with cover teeth that match the pot teeth. The pot cover support part 20 is arranged on the pot cover body 10, and the pot cover support part 20 is fixed to the pot body 50 to limit circumferential rotation. The transmission structure 30 includes a gear set 31 that cooperates with each other, the gear set 31 is arranged between the pot cover support part 20 and the pot cover body 10, and the gear set 31 is connected to the pot cover body 10, so as to drive the pot cover body 10 to rotate around its central axis relative to the pot cover body 10 through the transmission structure 30.

[0035] By applying the technical solution of the first embodiment, when the pot cover is used, the transmission structure 30 drives the pot cover body 10 to rotate. The transmission structure 30 is driven by the gear set 31, which makes the transmission ratio of the transmission structure 30 relatively stable. The technical solution of the present invention effectively solves the problem of unstable transmission ratio of the pot cover when rotating in the prior art.

[0036] like Figures 6 to 10 As shown, in the technical solution of the first embodiment, the transmission structure 30 further includes a driving part 40, and the gear set 31 includes a first gear 311 connected to the driving part 40 and a second gear 312 matched with the first gear 311, and the second gear 312 is connected to the pot cover body 10 to be linked with the pot cover body 10. The pot cover body 10 is a rotating structure, which enables the setting of the first gear 311 and the second gear 312 to be very well adapted to the motion trajectory of the pot cover body 10.

[0037] like Figures 1 to 6 As shown, in the technical solution of the first embodiment, the pivot shaft 44 is provided with a first gear hole 441 and a second gear hole 442, and the transmission structure 30 further includes an elastic top block 23, and the first gear hole 441 and the second gear hole 442 respectively cooperate with the elastic top block 23 as the pivot shaft 44 rotates. The above structure enables the operator to perceive the cooperation between the pot cover and the pot body through operation. A stopper 443 is also provided on the pivot shaft 44, and when the pot cover is in the open state, the stopper 443 cooperates and abuts with the pot cover support part 20, so that when the pot cover is lifted, the contact area between the pivot shaft 44 and the pot cover support part 20 is relatively large.

[0038] like Figures 6 to 10 As shown, in the technical solution of the first embodiment, the center of the second gear 312 is on the central axis of the pot cover body 10, so that the center angle of the first gear 311 is the same as the center angle of the pot cover body 10. The trajectory of the center angle of the movement of the second gear 312 and the pot cover body 10 of the above structure is the same, so that the second gear 312 and the pot cover body 10 rotate synchronously, and the above structure makes the operation of the operator more convenient and can intuitively feel the size of the center angle of the pot cover body 10.

[0039] like Figures 8 to 10As shown, in the technical solution of the first embodiment, the transmission structure 30 also includes a rotating plate 32, the rotating plate 32 is fixedly connected to the pot cover body 10, and the second gear 312 is coaxially fixed on the rotating plate 32. The setting of the rotating plate 32 ensures that the transmission of the gear set 31 is relatively stable on the one hand, and on the other hand, the setting of the rotating plate 32 also facilitates the installation and matching of the transmission structure 30. Specifically, an elastic member 313 is installed at the lower part of the second gear 312, so that as the first gear 311 and the second gear 312 wear, the elastic member 313 can bounce upward, so that the first gear 311 and the second gear 312 can be better matched. Of course, as those skilled in the art know, the second gear 312 is formed by setting teeth on the rotating plate 32, which can save processing steps, and only the second gear 312 needs to be made, and the rotating plate 32 does not need to be made. In the technical solution of this embodiment, the second gear 312 is a planar structure. The rotating plate 32 is also connected to a driving arm 33 , a through hole is provided at a free end of the driving arm 33 , and a convex column is provided on the pot cover body 10 and penetrates the through hole.

[0040] like Figures 8 to 10 As shown, in the technical solution of the first embodiment, the pot cover support part 20 includes a housing 21, and the pot cover also includes a bottom plate 22. The bottom plate 22 and the housing 21 are fixedly connected to form an accommodation space, and the transmission structure 30 is arranged in the accommodation space. The transmission structure 30 also includes a fixed shaft fixed to the second gear 312, and the fixed shaft passes through the bottom plate 22 and is fixed to the pot cover body 10. The above structure facilitates the installation of the transmission structure 30. The setting of the bottom plate 22 facilitates the support and matching of the rotating plate 32.

[0041] like Figures 1 to 5 As shown, in the technical scheme of embodiment one, the driving part 40 includes a pivot shaft 44, the central axis of the pivot shaft 44 is perpendicular to the central axis of the pot cover body 10, the first gear 311 is arranged on the pivot shaft 44, the central axis of the second gear 312 is perpendicular to the central axis of the first gear 311, and the second gear 312 and the first gear 311 are externally meshed. The above structure is easy to process and easy to assemble. Of course, as those skilled in the art know, it is also possible to set the first gear 311 and the second gear to be internally meshed gear transmission according to specific circumstances, specifically: the driving part 40 includes a pivot shaft 44, the central axis of the pivot shaft 44 and the central axis of the pot cover body 10 coincide, the first gear 311 is arranged on the pivot shaft 44, and the first gear 311 and the second gear 312 are internally meshed gear transmission.

[0042] In other embodiments, a third gear is further provided on the pivot shaft 44, and the third gear is spaced apart from the first gear 311. The pot cover further includes an operating portion 41 exposed from the pot cover support portion 20, the central axis of the operating portion 41 is parallel to the central axis of the pot cover body 10, and the operating portion 41 can move up and down along its central axis, and a rack meshed with the third gear is provided on the operating portion 41. When the operating portion 41 moves up and down in a direction parallel to the central axis of the pot cover body 10, the rack on the operating portion 41 and the third gear cooperate with each other to drive the pivot shaft 44 to rotate clockwise or counterclockwise, thereby driving the pot cover to open or lock relative to the pot body 50.

[0043] For more details, please refer to Fig.11 In the technical solution of the second embodiment, the operating part 41 includes a lid opening button assembly 42 and a lid closing button assembly 43, and the lid opening button assembly 42 and the lid closing button assembly 43 are parallel to the central axis of the pot cover body 10. There are two racks, which are respectively arranged on the periphery of the lid opening button assembly 42 and the lid closing button assembly 43. The lid opening button assembly 42 and the lid closing button assembly 43 are respectively arranged on the opposite sides of the third gear, and the third gear includes two sections of teeth respectively arranged with the lid opening button assembly 42 and the lid closing button assembly 43. Among them, the third gear includes two sections of teeth arranged with intervals on the pivot shaft, and the two sections of teeth are respectively meshed with the racks on the lid opening button assembly 42 and the lid closing button assembly 43. The lid opening button assembly 42 drives the first gear 311 to rotate clockwise, and the lid closing button assembly 43 drives the first gear 311 to rotate counterclockwise. The arrangement of the lid opening button assembly 42 and the lid closing button assembly 43 further facilitates the operation of the pot cover by the operator, who only needs to press to open or lock the pot cover and the pot body 50. Of course, the control handle is only used when taking and placing the pot cover.

[0044] In other more specific embodiments, the operating part 41 includes a lid opening button assembly 42 and a lid closing button assembly 43, and the lid opening button assembly 42 and the lid closing button assembly 43 are parallel to the central axis of the pot cover body 10. There are two racks, which are respectively arranged on the periphery of the lid opening button assembly 42 and the lid closing button assembly 43. The pivot shaft 44 is also provided with a fourth gear and a fifth gear arranged at intervals, and the racks on the lid opening button assembly 42 and the lid closing button assembly 43 are respectively meshed with the fourth gear and the fifth gear for transmission. In order to avoid interference, the fourth gear and the fifth gear are not a whole gear, but a part of the gear, that is to say: the teeth on the fourth gear and the fifth gear are not surrounded by a circle, but surrounded by an arc; or the diameters of the root circles of the fourth gear and the fifth gear are different. The lid opening button assembly 42 drives the first gear 311 to rotate clockwise, and the lid closing button assembly 43 drives the first gear 311 to rotate counterclockwise. The arrangement of the lid opening button assembly 42 and the lid closing button assembly 43 further facilitates the operation of the pot cover by the operator, who only needs to press to open or lock the pot cover and the pot body 50. Of course, the control handle is only used when taking and placing the pot cover.

[0045] It should be noted that the above-mentioned rack can also be a rack formed by providing teeth arranged along the axial direction on the cover opening button assembly 42 and the cover closing button assembly 43.

[0046] The present application also provides a pressure cooker, comprising a pot body 50 and a pot cover arranged on the pot body 50. The pot cover is the above-mentioned pot cover. A rotation-stopping block is arranged on the handle of the pot body 50, and a rotation-stopping groove 24 matching with the rotation-stopping block is arranged on the pot cover support part, so that the pot cover support part can be prevented from rotating with the rotation of the pot cover body.

[0047] 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 "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] 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 pot cover, which can be opened and closed and is arranged on a pot body (50), wherein the pot body (50) is provided with pot teeth, characterized in that: The pot cover comprises: A pot cover body (10), the pot cover body (10) being provided with cover teeth cooperating with the pot teeth; A pot cover support portion (20), the pot cover support portion (20) being arranged on the pot cover main body (10), and the pot cover support portion (20) being fixed to the pot body (50) to restrict circumferential rotation; a transmission structure (30), the transmission structure (30) comprising a gear set (31) that cooperates with each other, the gear set (31) being arranged between the pot cover support portion (20) and the pot cover main body (10), the gear set (31) being connected to the pot cover main body (10) so as to drive the pot cover main body (10) to rotate relative to the pot cover main body (10) around its central axis through the transmission structure (30); The transmission structure (30) further comprises a driving part (40), the gear set (31) comprises a first gear (311) connected to the driving part (40) and a second gear (312) matched with the first gear (311), the second gear (312) being connected to the pot cover body (10) so as to be linked with the pot cover body (10); The driving part (40) comprises a pivot shaft (44), the first gear (311) is arranged on the pivot shaft (44), and the second gear (312) is meshed with the first gear (311); The pivot shaft (44) is provided with a first gear hole (441) and a second gear hole (442), and the transmission structure (30) further comprises an elastic top block (23), and the first gear hole (441) and the second gear hole (442) respectively cooperate with the elastic top block (23) as the pivot shaft (44) rotates.

2. The pot cover according to claim 1, characterized in that: The pot cover support portion (20) comprises a shell (21), and the pot cover further comprises a bottom plate (22). The bottom plate (22) and the shell (21) are fixedly connected to form a storage space. The transmission structure (30) is arranged in the storage space. The transmission structure (30) further comprises a fixed shaft fixed to the second gear (312), and the fixed shaft passes through the bottom plate (22) and is fixed to the pot cover body (10).

3. The pot cover according to claim 1, characterized in that: The central axis of the pivot shaft (44) is perpendicular to the central axis of the pot cover body (10), the central axis of the second gear (312) is perpendicular to the central axis of the first gear (311), and the second gear (312) and the first gear (311) are in external meshing transmission.

4. The pot cover according to claim 3, characterized in that: A stopper (443) is also provided on the pivot shaft (44), and the stopper (443) abuts against the pot cover support portion (20) as the pivot shaft (44) rotates, so that when the pot cover body (10) is in an open state, the stopper (443) is in contact with the pot cover support portion (20).

5. The pot cover according to claim 1, characterized in that: The driving part (40) comprises a pivot shaft (44), the central axis of the pivot shaft (44) coincides with the central axis of the pot cover body (10), the first gear (311) is arranged on the pivot shaft (44), and the first gear (311) and the second gear (312) are internally meshed gear transmissions.

6. The pot cover according to claim 3, characterized in that: A third gear is also provided on the pivot shaft (44), and the pot cover further comprises an operating portion (41) exposed from the pot cover support portion (20), the central axis of the operating portion (41) is parallel to the central axis of the pot cover body (10), and the operating portion (41) can move up and down along its central axis, and a rack meshing with the third gear is provided on the operating portion (41).

7. The pot cover according to claim 6, characterized in that: The operating portion (41) comprises a cover opening button assembly (42) and a cover closing button assembly (43); the number of the racks is two and they are arranged on the periphery of the cover opening button assembly (42) and the cover closing button assembly (43), respectively; the cover opening button assembly (42) and the cover closing button assembly (43) are arranged on opposite sides of the third gear, respectively; the third gear comprises two sections of teeth which are arranged at intervals from the cover opening button assembly (42) and the cover closing button assembly (43), respectively.

8. The pot cover according to claim 3, characterized in that: The pivot shaft (44) is also provided with a fourth gear and a fifth gear arranged at intervals. The pot cover also includes a lid opening button assembly (42) and a lid closing button assembly (43) respectively arranged on both sides of the pivot shaft (44). The lid opening button assembly (42) and the lid closing button assembly (43) are parallel to the central axis of the pot cover body (10). The lid opening button assembly (42) and the lid closing button assembly (43) on both sides of the pivot shaft (44) are provided with racks respectively meshing with the fourth gear and the fifth gear.

9. A pressure cooker, comprising a cooker body (50) and a cooker cover arranged on the cooker body (50), characterized in that: The pot cover is the pot cover according to any one of claims 1 to 8.

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