Pot cover and pressure cooker

Abstract

The application discloses a pot cover and a pressure cooker. The pot cover comprises a cover body, a driving mechanism and a plurality of movable inserts. The driving mechanism and the movable inserts are arranged on the cover body. The movable inserts can slide along the radial direction of the cover body. The movable inserts are arranged along the circumferential direction of the cover body. The driving mechanism comprises a driving disc and an operating part. The driving disc is provided with a plurality of driving grooves extending along the circumferential direction. Each driving groove comprises a first end portion and a second end portion located at two ends. In the radial direction of the driving disc, the first end portion is arranged farther away from the axis of the driving disc than the second end portion. The shortest distance from the first end portion to the outer periphery of the driving disc is defined as a, and the shortest distance from the second end portion to the outer periphery of the driving disc is defined as b, b≤4a. Therefore, the curvature of the driving groove gradually changes along the circumferential direction in the embodiment, so that the operation feeling is further improved, and the problem of blockage can be avoided.

Description

Technical Field

[0001] This application relates to the field of pressure cooker technology, specifically to a pressure cooker lid and a pressure cooker. Background Technology

[0002] Pressure cookers are popular among consumers due to their energy-saving, time-saving, and multi-functional cooking features. They utilize the physical phenomenon that liquids boil at higher pressures; by applying pressure to the liquid, the energy consumption of the liquid is increased, thus accelerating the cooking process.

[0003] Pressure cookers generally consist of a pot body and a lid. To achieve high pressure, the lid and pot body need to be sealed together for pressure sealing. In related technologies, pressure cooker lids are equipped with telescopic locking mechanisms to achieve this seal. While the telescopic locking mechanism is convenient to operate, the locking components need to slide along the radial direction of the lid. During this sliding process, the relatively steep sliding groove not only results in poor handling but also easily causes jamming, which can severely impair the normal use of the lid. Utility Model Content

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a pot lid and pressure cooker that have a good guiding effect, improve the stability of the moving plate, avoid jamming, and further optimize the operating feel during locking.

[0005] To achieve the above objectives, the first aspect of this application discloses a pot lid, comprising: Cover; Multiple movable inserts are disposed on the cover, the multiple movable inserts are arranged circumferentially along the cover, and each movable insert can slide along the radial direction of the cover; A driving mechanism, disposed on the cover, includes a driving disk and an operating part. The driving disk is rotatably disposed within the cover. A first end of the operating part is connected to the driving disk, and a second end of the operating part extends beyond the top surface of the cover. The driving disk has multiple circumferentially extending driving grooves, each corresponding to a plurality of movable insert plates. A mating part on each movable insert plate, corresponding to a driving groove, is inserted into the corresponding driving groove. The operating part can drive the driving disk to rotate, thereby causing the movable insert plates to move radially along the cover. The distance between each point on the drive groove and the axis of the pot lid gradually changes circumferentially. Each drive groove includes a first end and a second end located at both ends. The shortest distance from the first end to the outer periphery of the drive plate is defined as a, and the shortest distance from the second end to the outer periphery of the drive plate is defined as b, where b≤4a.

[0006] Furthermore, the sum of the circumferential lengths of the plurality of drive slots is not less than 60% of the circumferential length of the drive disk.

[0007] Furthermore, the lid includes an outer cover and an inner seat, the outer cover and the inner seat being fastened together to form a receiving cavity, the driving disk being disposed in the receiving cavity, and in the axial direction of the lid, the ratio of the projected area of ​​the driving disk on the outer cover to the area of ​​the outer cover is greater than or equal to 60%.

[0008] Furthermore, the lid includes an outer cover and an inner seat, which are fastened together to form a receiving cavity. The drive disc is disposed within the receiving cavity. The inner seat includes a reinforcing support and a guiding support. The guiding support is disposed on the top side of the reinforcing support. The reinforcing support and the guiding support are respectively connected to the outer cover. A first limiting flange corresponding to the drive disc is formed on the top surface of the guiding support. A second limiting flange cooperating with the first limiting flange is formed on the bottom surface of the drive disc. The first limiting flange and the second limiting flange are annular and are nested radially inside and outside the lid to limit the drive disc.

[0009] Furthermore, the drive plate includes a drive body and a central drive portion protruding from the top surface of the drive body. The movable insert plate includes a connecting portion, a plug-in portion, and a vertical plate connecting the connecting portion and the plug-in portion. The connecting portion and the plug-in portion are spaced apart in the axial direction of the lid. A mating portion is formed on the connecting portion. The mating portion is inserted into the corresponding drive groove. The connecting portion is opposite to the central drive portion, the plug-in portion is opposite to the drive body, and the vertical plate is opposite to the outer surface of the central drive portion.

[0010] Furthermore, the operating part is rotatably mounted on the outer cover of the cover body around its own axis, and an avoidance groove is provided on the top surface of the outer cover. The operating part is connected to the drive disk through a connector that passes through the avoidance groove.

[0011] Furthermore, the cover has a plurality of guide mechanisms corresponding to the plurality of movable inserts. The outer side wall of the movable insert cooperates with the corresponding guide mechanism. The driving mechanism can drive the movable insert to move radially along the cover, so that the outer side wall of the movable insert slides along the corresponding guide mechanism, and the movable insert can lock with the pot from the inside of the pot.

[0012] Furthermore, the movable insert plate includes a connecting part and a plug-in part. One end of the connecting part is connected to the driving mechanism, and the other end of the connecting part is connected to the plug-in part. The length of the plug-in part along the circumference of the pot lid is greater than the length of the connecting part along the circumference of the pot lid. The guiding mechanism includes an inner guide groove and an outer guide groove arranged sequentially from the inside to the outside along the radial direction of the pot lid. The outer side wall of the connecting part cooperates with the inner guide groove, and the outer side wall of the plug-in part cooperates with the outer guide groove.

[0013] Furthermore, b > a.

[0014] Secondly, this application also provides a pressure cooker, comprising: Pot body; As described in any of the above, the inner wall of the pot body forms an annular inner boss around the axis of the pot body; wherein, when the pot lid is placed on the pot body, the driving mechanism can drive the movable insert plate to extend outward to the bottom side of the inner boss.

[0015] Furthermore, an annular conical sealing portion is formed on the inner wall of the pot body, located on the bottom side of the inner boss. The top diameter of the conical sealing portion is larger than the bottom diameter of the conical sealing portion. The pot lid includes an elastic sealing ring fitted onto the lid body. When the pot lid is placed on the pot body, the elastic sealing ring abuts against the conical sealing portion to seal the pot body.

[0016] The lid provided in this application uses a radially movable insert plate to lock and unlock with the pot body. When using the lid to seal the pot body, there is no need to control the relative position of the lid and the pot body in the circumferential direction, making operation more convenient. In terms of overall structure, the movable insert plate and the corresponding driving mechanism are all located inside the lid, making the lid's appearance similar to an ordinary lid. This prevents users from easily mistaking the lid provided in this application and the pressure cooker structure using this lid for a dangerous pressure vessel, effectively avoiding users' fear of pressure cookers. Simultaneously, each driving groove includes a first end and a second end located at both ends. In the radial direction of the driving disc, the first end is further away from the axis of the driving disc than the second end. The shortest distance from the first end to the outer periphery of the driving disc is defined as 'a', and the shortest distance from the second end to the outer periphery of the driving disc is defined as 'b'. In this embodiment, b ≤ 4a, thereby making the curvature of the driving groove in this embodiment more gradual along the circumferential direction. This allows the movable insert plate to avoid frequent contact with the inner wall of the driving groove during its sliding process within the more gradually curvatured driving groove, further improving the operating feel and preventing jamming.

[0017] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0018] The following description, in conjunction with the accompanying drawings, further illustrates this application: Figure 1 This is a cross-sectional view of the pot lid according to one embodiment of this application; Figure 2 This is an overall external view of a pressure cooker according to one embodiment of this application; Figure 3 This is a structural diagram of the drive disk and movable insert plate according to one embodiment of this application; Figure 4 This is an installation structure diagram of the movable insert plate and guide support member according to one embodiment of this application; Figure 5 This is a structural diagram of a reinforced support member according to one embodiment of this application; Figure 6 This is a structural diagram of an active insert plate according to one embodiment of this application; Figure 7 This is an exploded view of the pot lid according to one embodiment of this application; Figure 8 This is a cross-sectional view of the pot lid according to one embodiment of this application; Figure 9 The overall structure of a pressure cooker (with a handle) is shown in one embodiment of this application. Figure 10 This is a cross-sectional view of the pot body according to one embodiment of this application; Figure 11 This is a cross-sectional view of the pot lid and pot body assembly structure according to one embodiment of this application; Figure 12 for Figure 11 Enlarged view of point A (the movable insert plate is locked to the pot body); Figure 13 This is a structural diagram of the mating structure of the movable insert plate and the outer cover according to one embodiment of this application; Figure 14 This is a structural diagram of the active insert plate and drive disk in one embodiment of this application; Figure 15 This is a structural diagram of an active insert plate according to one embodiment of this application; Figure 16 This is an exploded view of the pot lid according to one embodiment of this application.

[0019] in, 100. Cover; 110. Inner seat; 111. Reinforcing support; 1111. Center plane portion; 1112. Reinforcing portion; 1113. Edge plane portion; 1114. Sealing mounting ring; 112. Guide support component; 1121. First inner limiting platform; 1122. First outer limiting platform; 1123. First limiting flange; 120. Outer cover; 121. Outer panel; 122. Mounting docking part; 123. First shielding ring; 124. Second shielding ring; 125. Second inner limiting platform; 126. Second outer limiting platform; 127. Annular plate; 130. Elastic sealing ring; 140. Drive mechanism; 141. Drive disk; 1411. Drive groove; 1412. Second limiting flange; 1413. Central drive unit; 1414. Drive body; 1415. First end; 1416. Second end; 142. Operating unit; 150. Movable insert plate; 151. First connecting part; 152. First insertion part; 153. Second connecting part; 154. Second insertion part; 155. Vertical plate; 156. Flanged edge; 157. Mating part; 200. Pot body; 210. Inner boss; 220. Conical sealing part; 230. Handle. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0021] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0022] One embodiment of this application discloses a pot lid, including a lid body 100. The pot lid includes a drive mechanism 140 and a plurality of movable inserts 150, both of which are disposed on the lid body 100. The plurality of movable inserts 150 are arranged circumferentially along the lid body 100, and each movable insert 150 can slide radially along the lid body 100.

[0023] The cover 100 has multiple guide mechanisms that correspond one-to-one with the multiple movable inserts 150, and the outer side wall of each movable insert 150 cooperates with the corresponding guide mechanism. The drive mechanism 140 is used to drive the movable insert 150 to move radially along the cover 100, so that the outer side wall of the movable insert 150 slides along the corresponding guide mechanism, and finally locks the movable insert 150 with the pot body 200 from the inside.

[0024] The lid provided in this embodiment uses a radially movable insert plate 150 to lock and unlock with the pot body 200. When using the lid to seal the pot body 200, there is no need to control the relative position of the lid and the pot body 200 in the circumferential direction, making operation more convenient. In terms of overall structure, the movable insert plate 150 and the corresponding drive mechanism 140 are both located inside the lid, making the lid's appearance similar to an ordinary lid. Users are less likely to mistake the lid provided in this application or the pressure cooker structure using this lid for a dangerous pressure vessel, effectively avoiding users' fear of pressure cookers.

[0025] Furthermore, in this embodiment, the number of movable inserts 150 provided in the pot lid is generally not less than three. In an optional embodiment, the multiple movable inserts 150 are evenly distributed along the circumferential direction of the lid 100. After the multiple movable inserts 150 are locked with the pot body 200, the effect of uniform locking along the circumference of the pot body 100 can be achieved, thereby improving the stability of the locking.

[0026] This embodiment does not specifically limit the structure of the movable insert plate 150, as long as it can lock the pot body and the lid together. It should be noted that the movable insert plate 150 is plate-shaped, which can reduce the overall thickness of the lid. Accordingly, for pressure cookers of the same volume, using the lid provided in this embodiment can increase the volume of the pot body 200, better meeting the user's needs.

[0027] This application does not impose specific limitations on the form of the drive mechanism 140, as long as it can drive the movable insert 150 to move radially along the cover 100. For example, the drive mechanism 140 can be a rotary drive or a linear drive, etc.

[0028] The guiding mechanism in this embodiment can cooperate with the outer wall of the movable insert 150. Compared with placing the guiding mechanism inside the movable insert 150, the guiding mechanism in this embodiment can guide the movable insert 150 over a longer range, thereby improving the stability of the movable insert 150. The guiding mechanism in this embodiment can generally be configured as a guide groove. In use, the movable insert 150 is placed in the guide groove, and the two side walls of the movable insert 150 are opposite to the side walls of the guide groove.

[0029] As one embodiment of this application, see [link to relevant documentation]. Figure 6 ,and Figure 15 The movable insert plate 150 includes a connecting part and a plug-in part. One end of the connecting part is connected to the drive mechanism 140, and the other end of the connecting part is connected to the plug-in part. The length of the plug-in part along the circumference of the pot lid is greater than the length of the connecting part along the circumference of the pot lid. The guide mechanism includes an inner guide groove and an outer guide groove arranged sequentially from the inside to the outside along the radial direction of the pot lid. The outer side wall of the connecting part cooperates with the inner guide groove, and the outer side wall of the plug-in part cooperates with the outer guide groove.

[0030] To more clearly illustrate the structure of the movable insert 150, refer to... Figure 6 and Figure 15 The structure of the movable insert plate 150 will be described. As shown in the figure, the insertion part of the movable insert plate 150 includes a first insertion part 152 and a second insertion part 154, and the connecting part of the movable insert plate 150 includes a first connecting part 151 and a second connecting part 153.

[0031] The guiding mechanism in this embodiment includes an inner guide groove and an outer guide groove. In the radial direction of the pot lid, the inner guide groove and the outer guide groove can respectively cooperate with the connecting part and the insertion part of the movable insert plate 150. In this embodiment, the connecting part and the insertion part have different circumferential widths, forming a structure similar to a "T". By setting the inner guide groove and the outer guide groove, the connecting part and the insertion part with different widths can be limited respectively, thereby improving the stability of the movement of the movable insert plate 150.

[0032] Furthermore, in this embodiment, the insertion portion has a longer length along the circumferential direction of the pot lid, resulting in a larger locking area when the insertion portion is locked with the pot body 200, thereby improving the locking strength and stability. It should be noted that increasing the locking area can reduce the thickness of the movable insert plate 150.

[0033] As one embodiment of this application, see [link to relevant documentation]. Figure 1 ,and Figure 8 The cover 100 includes an outer cover 120 and an inner seat 110. The outer cover 120 and the inner seat 110 are fastened together and form a receiving cavity between the outer cover 120 and the inner seat 110. An inner guide groove is disposed in the receiving cavity, and an outer guide groove penetrates the side wall of the receiving cavity. The driving mechanism 140 can drive the insertion part to slide along the outer guide groove so that the insertion part can extend or retract into the receiving cavity.

[0034] In this embodiment, when it is not necessary to lock the lid to the pot body, the movable insert plate 150 can be completely placed inside the receiving cavity, so that the movable insert plate 150 cannot be seen from the outside, improving the overall appearance of the lid. When the lid is placed on the pot body 200 and locked, the movable insert plate 150 is locked to the inner wall of the pot body 200 from the inside, so the movable insert plate 150 cannot be seen from the outside.

[0035] As one embodiment of this application, see [link to relevant documentation]. Figure 1 , Figure 4 and Figure 7 The inner seat 110 includes a reinforcing support 111 and a guide support 112. The guide support 112 is disposed on the top side of the reinforcing support 111. The reinforcing support 111 and the guide support 112 are respectively connected to the outer cover 120. A plurality of first inner limiting platforms 1121 and a plurality of first outer limiting platforms 1122 are formed on the top surface of the guide support 112, which are spaced apart along the circumference of the pot cover. The first outer limiting platforms 1122 are located on the outer side of the first inner limiting platforms 1121 in the radial direction of the pot cover.

[0036] Multiple first inner limiting stages 1121 are divided into multiple groups, each group including two first inner limiting stages 1121. The two first inner limiting stages 1121 in the same group are arranged opposite to each other, and the two first inner limiting stages 1121 in the same group define an inner guide groove. Two adjacent first outer limiting stages 1122 define an outer guide groove.

[0037] In this embodiment, the movable insert plate 150 is slidably connected to the inner seat 110. The inner seat 110 has a guide support 112 with a first inner limiting platform 1121 and a first outer guide portion that cooperate with the movable insert plate 150. The first connecting portion 151 and the first insertion portion 152 on the movable insert plate 150 can slide and engage respectively, providing multiple guiding effects for the movable insert plate 150 and making its movement more stable. The first connecting portion 151 of the movable insert plate 150 is connected to the drive disk 141, and the first insertion portion 152 can extend out of the cover 100 and lock into the pot body 200, dividing the movable insert plate 150 into two parts. The specific structure of the movable insert plate 150 can be rationally designed according to different functions, such as... Figure 6 ,and Figure 15 As shown, the movable insert 150 has a T-shaped structure. The first insertion part 152 has a relatively large length in the circumferential direction of the pot lid, which can form a large locking area between the pot body 200 and the first insertion part 152, thereby increasing the stability of the locking. The size of the first connecting part 151 is relatively small, which saves materials and facilitates the overall layout of the pot lid.

[0038] In this embodiment, it can be achieved as follows: Figure 3 The pin and drive groove 1411 shown are used to connect the first connecting part 151 and the drive plate 141. Alternatively, the connection between the first connecting part 151 and the drive plate 141 can be achieved through the wedge-shaped fit (fitting spring) between the protrusions. As long as the rotation of the drive plate 141 can be ensured to drive the movable insert plate 150 to extend and retract radially along the lid.

[0039] As one embodiment of this application, see [link to relevant documentation]. Figure 5 ,and Figure 7 The reinforcing support 111 includes a central plane portion 1111, a reinforcing portion 1112, an edge plane portion 1113, and a sealing mounting ring 1114. The central plane portion 1111 is connected to the inner edge of the reinforcing portion 1112, and the outer edge of the reinforcing portion 1112 is connected to the edge plane portion 1113. The sealing mounting ring 1114 protrudes from the bottom surface of the edge plane portion 1113 and forms a gap with the outer edge of the edge plane portion 1113. The bottom end of the sealing mounting ring 1114 extends obliquely towards the outer side of the edge plane portion 1113. The lid also includes an elastic sealing ring 130 fitted onto the outer side of the sealing mounting ring 1114, and the top end of the elastic sealing ring 130 abuts against the bottom surface of the edge plane portion 1113.

[0040] Because a conical structure has better structural strength than a planar structure, as shown in the figure, the reinforcing part 1112 of the reinforcing support 111 in this embodiment can be set as conical, so that the reinforcing part 1112 has higher structural strength. Of course, the embodiments of this application are not limited to this, and the reinforcing part 1112 can also be set as other shapes, such as arc shape.

[0041] In other embodiments, the central plane portion 1111 may be configured as follows: Figure 5 The structure shown is recessed into the inner edge of the reinforcing part 1112 to further improve the structural strength of the reinforcing support 111.

[0042] It should be noted that in this embodiment, the conical sidewall of the reinforcing part 1112 slopes from the outside to the inside towards the top, such as... Figure 7 As shown.

[0043] In this embodiment, the sealing mounting ring 1114 forms a certain angle, which can better support and fix the elastic sealing ring 130.

[0044] As one embodiment of this application, see [link to relevant documentation]. Figure 7 , Figure 8 120 includes an outer panel 121, a mounting docking part 122, a first shielding ring 123, and a second shielding ring 124. It is easy to understand that both the first shielding ring 123 and the second shielding ring 124 are annular.

[0045] The outer panel 121 surrounds the mounting docking portion 122, and the bottom side of the mounting docking portion 122 protrudes towards the inner seat 110 and is connected to the central plane portion 1111. The first shielding ring 123 and the second shielding ring 124 both protrude from the bottom of the outer panel 121. The first shielding ring 123 is located outside the second shielding ring 124, and the second shielding ring 124 is opposite to the first outer limiting platform 1122 in the axial direction of the pot lid.

[0046] The outer cover 120 includes an outer panel 121, an annular plate 127, and a plurality of second inner limiting platforms 125. The annular plate 127 and the second inner limiting platforms 125 both protrude from the bottom surface of the outer panel 121. The plurality of second inner limiting platforms 125 are distributed along the circumference of the lid and are located inside the annular plate 127.

[0047] Multiple second inner limiting stages 125 are divided into multiple groups, each group including two second inner limiting stages 125. The two second inner limiting stages 125 in the same group are arranged opposite to each other, and the two second inner limiting stages 125 in the same group define the inner guide groove.

[0048] Multiple outer guide grooves are formed on the annular plate 127, which are distributed circumferentially along the annular plate 127.

[0049] In this embodiment, the outer cover 120 is connected to the center plane portion 1111 on the reinforcing support member 111 of the inner seat 110 via the mounting docking portion 122, and is also connected to the guide support member 112 via the outer panel 121 via screws distributed around the circumference of the lid axis. This can improve the reliability of the connection between the outer cover 120 and the inner seat 110.

[0050] This embodiment also includes a first blocking ring 123 and a second blocking ring 124. The first blocking ring 123 is located outside the second blocking ring 124. Thus, in the retracted state of the movable insert plate 150, the second blocking ring 124 can block the movable insert plate 150; in the extended state of the movable insert plate 150, the first blocking ring 123 can block the movable insert plate 150. Figure 1 ,and Figure 7 As shown, there is a certain gap between the first blocking ring 123 and the second blocking ring 124.

[0051] As can be seen from the above, the movable insert 150 provided in this embodiment can be installed in conjunction with either the outer cover 120 or the inner seat 110. Of course, this embodiment is not limited to this, and can be rationally designed according to actual needs. For example, when a guide mechanism is provided on the outer cover 120, the number of parts of the pot lid can be reduced, and the overall structure can be simplified.

[0052] like Figure 13 As shown, the movable insert plate 150 cooperates with the outer cover. A second inner limiting platform 125 is provided on the outer cover. An outer guide groove is formed on the annular plate 127. On both sides of the outer guide groove are second outer limiting platforms 126. In this way, the second outer limiting platform 126 and the second inner limiting platform 125 can cooperate with the second insertion part 154 and the second connecting part 153 respectively.

[0053] In one embodiment of this application, the drive mechanism 140 includes a drive disk 141 and an operating part 142. The drive disk 141 is rotatably disposed within the cover 100. The first end of the operating part 142 is connected to the drive disk 141, and the second end of the operating part 142 extends out of the top surface of the cover 100. The drive disk 141 has a plurality of circumferentially extending drive grooves 1411, and the plurality of drive grooves 1411 are correspondingly disposed with a plurality of movable insert plates 150. The distance between each point on the drive groove 1411 and the axis of the lid gradually changes circumferentially. One end of the movable insert plate 150 has a mating part 157, which is accommodated in the drive groove 1411. Operating the operating part 142 can drive the drive disk 141 to rotate, thereby causing the movable insert plate 150 to move radially along the cover 100.

[0054] like Figure 3 ,and Figure 14 As shown, in this embodiment, the drive groove 1411 and the mating part 157 (generally designed as a pin) of the movable insert plate 150 cooperate with each other. The mating part 157 can rotate or slide relative to the drive groove 1411. Since different parts of the drive groove 1411 are at different distances from the axis of the drive disk 141, the movable insert plate 150 can slide radially through the drive groove 1411 when the drive disk 141 rotates.

[0055] For further information, please refer to [link / reference]. Figure 3 In this embodiment, each drive groove 1411 includes a first end 1415 and a second end 1416 located at both ends. In the radial direction of the drive disk 141, the first end 1415 is located further away from the axis of the drive disk 141 than the second end 1416. The shortest distance from the first end 1415 to the outer periphery of the drive disk 141 is defined as a, and the shortest distance from the second end 1416 to the outer periphery of the drive disk 141 is defined as b. In this embodiment, b≤4a. It is understood that, in this embodiment, limiting the shortest distance from the second end 1416 to the outer periphery of the drive disk 141 to be less than or equal to four times the shortest distance from the first end 1415 to the outer periphery of the drive disk 141 makes the curvature of the drive groove 1411 gradually change in the circumferential direction in this embodiment more gentle. This allows the movable insert plate 150 to avoid frequent contact with the inner wall of the drive groove 1411 during its sliding process within the more gently curvature drive groove 1411, thereby further improving the operating feel and avoiding jamming problems.

[0056] It should be noted that in the above embodiments, the shortest distance from the second end 1416 to the outer periphery of the drive disk 141 is not limited to being less than or equal to 4 times the shortest distance from the first end 1415 to the outer periphery of the drive disk 141. For example, the smoothness of the drive groove 1411 can be adjusted according to the actual situation, such as limiting b≤3a or b≤2a, etc., which are not limited here. At the same time, in a further embodiment, b can be greater than a. When b is greater than a, the first end 1415 is farther away from the axis of the drive disk 141 than the second end 1416.

[0057] In another embodiment, such as Figure 3 As shown, each drive slot 1411 has approximately the same length on the drive disk 141 and is equidistantly spaced. The sum of the circumferential lengths of the multiple drive slots 1411 is not less than 60% of the circumferential length of the drive disk 141. Thus, by extending each drive slot 1411, the extension length of the movable insert (150) during the radial movement along the cover (100) can be more controllable, which facilitates operation.

[0058] It should be noted that in other embodiments of this application, the sum of the circumferential lengths of the plurality of drive slots 1411 may also be no less than 40%, 45%, 50%, or 55% of the circumferential length of the drive disk 141, and this is not limited here.

[0059] In another embodiment, such as Figure 3 and Figure 7 As shown, the drive disk 141 is disposed within the receiving cavity. In the axial direction of the lid, the ratio of the projected area of ​​the drive disk 141 on the outer cover 120 to the area of ​​the outer cover 120 is greater than or equal to 60%. This allows for a further extension of the length of each drive groove 1411 by increasing the area of ​​the drive disk 141, thus making the extension length of the movable insert 150 more controllable during radial movement along the cover 100, facilitating operation. It should be noted that in other embodiments of this application, the size of the drive disk 141 is not limited. For example, the ratio of the projected area of ​​the drive disk 141 on the outer cover 120 to the area of ​​the outer cover 120 can be less than 60%, in which case only the drive groove 1411 needs to be extended.

[0060] The drive mechanism 140 in this embodiment includes a drive disk 141 and an operating part 142. The operating part 142 is located outside the cover 100. Generally, the operating part 142 can be set at the top center of the cover 100, such as... Figure 4 As shown, this design not only facilitates user operation but also enhances the overall aesthetics of the pressure cooker.

[0061] As one embodiment of this application, see [link to relevant documentation]. Figure 4The top surface of the guide support 112 is also formed with a first limiting flange 1123 corresponding to the drive disk 141, and the bottom surface of the drive disk 141 is formed with a second limiting flange 1412 that cooperates with the first limiting flange 1123. The first limiting flange 1123 and the second limiting flange 1412 are annular and nested inside and outside the lid in the radial direction to limit the radial position of the drive disk 141.

[0062] In this embodiment of the application, the annular first limiting flange 1123 and the annular second limiting flange 1412 are nested together during installation. The first limiting flange 1123 can be disposed on the outside of the second limiting flange 1412 or on the inside of the second limiting flange 1412. During installation, the first limiting flange 1123 can limit the drive disk 141 in the radial direction, so that the drive disk 141 can rotate smoothly around the axis of the limiting flange when rotating.

[0063] As one embodiment of this application, see [link to relevant documentation]. Figure 14 , Figure 15 , Figure 16 The drive plate 141 includes a drive body 1414 and a central drive portion 1413 protruding from the top surface of the drive body 1414. The connecting portion and the plug-in portion are spaced apart in the axial direction of the lid. The movable insert plate 150 also includes a vertical plate 155 connecting the connecting portion and the plug-in portion. A mating portion 157 is formed on the connecting portion. The connecting portion is opposite to the central drive portion 1413, the plug-in portion is opposite to the drive body 1414, and the vertical plate 155 is opposite to the outer surface of the central drive portion 1413.

[0064] In this embodiment, the drive plate 141 and the movable insert plate 150 are configured as a stepped structure that cooperates with each other. In this way, when designing, the drive plate 141 and the movable insert plate 150 with a stepped structure having a height difference can improve their own structural strength on the one hand, and replace the function of the reinforcing support 111 in the inner seat 110 mentioned above on the other hand, which is equivalent to reducing the number of overall parts of the pot lid.

[0065] As one embodiment of this application, see [link to relevant documentation]. Figure 13 The operating part 142 is rotatably mounted on the outer cover 120 of the cover body 100. A clearance groove is provided on the top surface of the outer cover 120. The operating part 142 is connected to the drive disk 141 through a connector that passes through the clearance groove.

[0066] As one embodiment of this application, see [link to relevant documentation]. Figure 15 The movable insert plate 150 includes a flange 156, which is located at the outer edge of the movable insert plate 150 and protrudes from the bottom surface of the movable insert plate 150 along the axial direction of the pot lid.

[0067] The design of the flange 156 in this embodiment can increase the thickness at the outer edge of the second insertion part 154, thereby increasing the locking strength.

[0068] In related technologies, pressure cookers with locking structures featuring movable sliding plates that extend and retract laterally typically have through holes in the side wall of the pot body. During actual use, the pot needs to be tilted to pour food and broth; therefore, the length of the through hole along the circumference of the pot body cannot be too long (to prevent food from leaking out when pouring). This results in a relatively short circumferential length for the movable sliding plate. In this case, to ensure the locking strength between the lid and the pot body, a thicker sliding plate is generally required to withstand the pressure. Furthermore, with through holes in the pot body, food residue can easily enter the handle through the holes, making cleaning difficult and causing food residue buildup.

[0069] In view of this, in one embodiment of the present application, a plurality of movable insert plates 150 are distributed around the axis of the cover 100, and the sum of the lengths of the plurality of insert portions along the circumferential direction of the cover 100 is not less than 60% of the length of the outer side surface of the movable insert plate 150 along the circumferential direction of the cover 100.

[0070] In practical applications, where space permits, the sum of the circumferential lengths of multiple movable inserts 150 on the cover 100 can be set to be no less than 75% or more of the circumference of the cover.

[0071] like Figure 3 ,and Figure 13 As shown, the circumferential length of each movable plate 150 is set to the maximum value when the mutual movement between adjacent movable plates 150 does not interfere with each other.

[0072] See Figure 2 and Figures 9 to 12 The second aspect of this application discloses a pressure cooker, including a lid and a pot body 200. The lid adopts the lid of the first aspect. An annular inner boss 210 is formed on the inner wall of the pot body 200 around the axis of the pot body 200. When the lid is closed on the pot body 200, the drive mechanism 140 can drive the movable insert 150 to extend outward to the bottom side of the inner boss 210.

[0073] When using the pot, if it is necessary to lock the lid and pot body 200 degrees, please refer to [the instructions]. Figure 11 ,and Figure 12 At this time, the movable insert plate 150 extends out of the lid 100 and into the lower part of the inner boss 210. The top surface of the movable insert plate 150 and the bottom surface of the inner boss 210 form a limiting effect. Under the action of high pressure inside the pot body 200, the pot lid will be lifted upward. However, due to the limiting effect of the movable insert plate 150 and the inner boss 210, the pot lid cannot be separated from the pot body 200, thereby achieving the high-pressure locking effect between the pot body 200 and the pot lid.

[0074] As one embodiment of this application, see [link to relevant documentation]. Figure 10 ,and Figure 11 An annular conical sealing portion 220 is formed on the inner wall of the pot body 200, located on the bottom side of the inner boss 210. The diameter of the top end of the conical sealing portion 220 is larger than the diameter of the bottom end of the conical sealing portion 220. The pot lid includes an elastic sealing ring 130 fitted onto the lid body 100. When the pot lid is fastened to the pot body 200, The elastic sealing ring 130 abuts against the conical sealing part 220 to form a seal on the pot body 200.

[0075] An annular conical sealing portion 220 is formed on the inner wall of the pot body 200, located on the bottom side of the inner boss 210. The top diameter of the conical sealing portion 220 is larger than the bottom diameter of the conical sealing portion 220. When the pot lid is placed on the pot body 200, the elastic sealing ring 130 abuts against the conical sealing portion 220 to form a seal on the pot body 200.

[0076] In this embodiment, a conical sealing part 220 is provided on the inner wall of the pot body 200. When the pot lid is placed on the pot body 200, the conical sealing part 220 and the elastic sealing ring 130 are squeezed together to form a sealing effect. The conical structure can achieve a better sealing effect.

[0077] Of course, it is conceivable that, in the actual design, a handle 230 could also be installed on the outer wall of the pot body 200, as shown in the appendix. Figure 9 , 11 As shown.

[0078] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A pot lid, characterized in that, include: Cover (100); Multiple movable inserts (150) are disposed on the cover (100), the multiple movable inserts (150) are disposed circumferentially on the cover (100), and each movable insert (150) is capable of sliding in the radial direction of the cover (100). A drive mechanism (140) is disposed on the cover (100) and includes a drive disk (141) and an operating part (142). The drive disk (141) is rotatably disposed inside the cover (100). The first end of the operating part (142) is connected to the drive disk (141), and the second end of the operating part (142) extends out of the top surface of the cover (100). The drive disk (141) has a plurality of circumferentially extending drive grooves (1411). The plurality of drive grooves (1411) are correspondingly disposed with a plurality of movable inserts (150). The mating part (157) on each movable insert (150) corresponding to the drive groove is inserted into the corresponding drive groove (1411). The operating part can drive the drive disk (141) to rotate, thereby driving the movable insert (150) to move radially along the cover (100). The distance between each point on each drive groove (1411) and the axis of the pot lid gradually changes circumferentially. Each drive groove (1411) includes a first end (1415) and a second end (1416) located at both ends. The shortest distance from the first end (1415) to the outer periphery of the drive disk (141) is defined as a, and the shortest distance from the second end (1416) to the outer periphery of the drive disk (141) is defined as b, where b≤4a.

2. The pot lid according to claim 1, characterized in that, The sum of the circumferential lengths of the plurality of drive slots (1411) is not less than 60% of the circumferential length of the drive disk (141).

3. The pot lid according to claim 1, characterized in that, The lid (100) includes an outer lid (120) and an inner seat (110), which are fastened together to form a receiving cavity. The drive disk (141) is disposed in the receiving cavity. In the axial direction of the lid, the ratio of the projected area of ​​the drive disk (141) on the outer lid (120) to the area of ​​the outer lid (120) is greater than or equal to 60%.

4. The pot lid according to claim 1, characterized in that, The cover (100) includes an outer cover (120) and an inner seat (110), which are fastened together to form a receiving cavity. The drive disk (141) is disposed within the receiving cavity. The inner seat (110) includes a reinforcing support (111) and a guide support (112). The guide support (112) is disposed on the top side of the reinforcing support (111). The reinforcing support (111) and the guide support (112) respectively... Connected to the outer cover (120), the top surface of the guide support (112) is formed with a first limiting flange (1123) corresponding to the drive disk (141), and the bottom surface of the drive disk (141) is formed with a second limiting flange (1412) that cooperates with the first limiting flange (1123). The first limiting flange (1123) and the second limiting flange (1412) are annular and are nested inside and outside the lid in the radial direction to limit the drive disk (141).

5. The pot lid according to claim 1, characterized in that, The drive plate (141) includes a drive body (1414) and a central drive part (1413) protruding from the top surface of the drive body (1414). The movable insert plate (150) includes a connecting part, a plug-in part, and a vertical plate (155) connecting the connecting part and the plug-in part. The connecting part and the plug-in part are spaced apart in the axial direction of the pot lid. A mating part (157) is formed on the connecting part. The mating part (157) is inserted into the corresponding drive groove (1411). The connecting part is opposite to the central drive part (1413), the plug-in part is opposite to the drive body (1414), and the vertical plate (155) is opposite to the outer surface of the central drive part (1413).

6. The pot lid according to claim 1, characterized in that, The operating part (142) is rotatably mounted on the outer cover (120) of the cover body (100) about its own axis. A clearance groove is provided on the top surface of the outer cover (120). The operating part (142) is connected to the drive disk (141) through a connector that passes through the clearance groove.

7. The pot lid according to claim 1, characterized in that, The cover (100) has a plurality of guide mechanisms that correspond one-to-one with the plurality of movable inserts (150). The outer side wall of the movable insert (150) cooperates with the corresponding guide mechanism. The drive mechanism (140) can drive the movable insert (150) to move radially along the cover (100), so that the outer side wall of the movable insert (150) slides along the corresponding guide mechanism, and the movable insert (150) can lock with the pot body from the inside of the pot body.

8. The pot lid as described in claim 7, characterized in that, The movable insert plate (150) includes a connecting part and a plug-in part. One end of the connecting part is connected to the driving mechanism (140), and the other end of the connecting part is connected to the plug-in part. The length of the plug-in part along the circumference of the pot lid is greater than the length of the connecting part along the circumference of the pot lid. The guiding mechanism includes an inner guide groove and an outer guide groove arranged sequentially from the inside to the outside along the radial direction of the pot lid. The outer side wall of the connecting part cooperates with the inner guide groove, and the outer side wall of the plug-in part cooperates with the outer guide groove.

9. The pot lid according to claim 1, characterized in that, b > a.

10. A pressure cooker, characterized in that, include Pot body (200); According to any one of claims 1-9, an annular inner boss (210) is formed on the inner wall of the pot body (200) around the axis of the pot body (200); wherein, when the pot lid is placed on the pot body (200), the driving mechanism (140) is capable of driving the movable insert plate (150) to extend outward to the bottom side of the inner boss (210).

11. The pressure cooker as described in claim 10, characterized in that, An annular conical sealing portion (220) is formed on the inner wall of the pot body (200) and located on the bottom side of the inner boss (210). The top diameter of the conical sealing portion (220) is larger than the bottom diameter of the conical sealing portion (220). The pot lid includes an elastic sealing ring (130) fitted onto the lid body (100). When the pot lid is placed on the pot body (200), the elastic sealing ring (130) abuts against the conical sealing portion (220) to seal the pot body (200).

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