Pressure cooker cover
By designing a pressure cooker lid with a knob assembly and guide groove structure, the problems of complex operation and easy leakage of existing pressure cooker lids have been solved, realizing one-handed operation and the multi-functionality of the knob.
Patent Information
- Application Number
- CN202423221885.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing pressure cooker lids are prone to being partially open, leading to pressure leakage inside the pot. They are also complicated to operate, requiring both hands, making them inconvenient to use and difficult to understand due to their complex structure.
A pressure cooker lid has been designed that allows for one-handed operation by rotating a knob assembly. The pressure ring is engaged or disengaged by a guide groove and guide post. The knob decorative piece is replaceable to improve versatility.
It enables one-handed, one-button control of the lid opening and closing, making it easy to operate, improving usability, and enhancing the versatility of the knob.
Smart Images
Figure CN223614571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen cooking utensils technology, and in particular to a pressure cooker lid. Background Technology
[0002] Some pressure cookers on the market are prone to leaks during use, with the lid and pot in a partially open position, causing the lid and pot to fail to lock together and resulting in pressure leakage. Existing pressure cookers have complicated opening and closing mechanisms that require both hands to operate, making them inconvenient to use; some pressure cookers also have overly complex structures that are difficult for users to understand how to use. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pressure cooker lid.
[0004] This utility model is achieved through the following technical solution: a pressure cooker lid, placed on a pot body, comprising a pressure lid, a panel, a knob assembly, a central nut, a central bolt, and a fastening structure; the panel is mounted on the pressure lid, the lower part of the knob assembly passes through the panel, the central bolt passes through the knob assembly, the panel, and the pressure lid in sequence and is tightened with the central nut, the knob assembly is sleeved around the central bolt and can rotate around it; the inner end of the fastening structure passes through the panel and is connected to the knob assembly, the fastening structure slides along the pressure lid as the knob assembly rotates to fasten or loosen the pressure lid and a set of opposite sides of the pot body; the knob assembly has an upward-opening receiving cavity, and a knob decorative piece can be detachably installed at the opening.
[0005] This pot lid uses a knob assembly to lock or unlock the latching mechanism, which can be operated with one hand, enabling one-button control of the lid's opening and closing, making it convenient to use. The design of the receiving cavity allows the knob decorative piece to be switched to a specific functional component according to actual needs, improving its versatility.
[0006] The panel has a mounting groove, and the mounting groove has a pair of symmetrical guide grooves. A pair of symmetrical fastening structures are also provided. Each pair of fastening structures includes a connector and a pressure ring located at the outer end of the connector. A guide post is located at the inner end of the connector. The lower end of the knob assembly has a set of symmetrical first positioning holes. The guide post passes through the guide groove and is fitted into the first positioning hole. Rotating the knob assembly forces the guide post to slide along the guide groove, thereby driving the pressure ring to fasten or loosen the pressure cap and the pot body. When the knob assembly is rotated, the first positioning hole rotates, forcing the guide post to move. The guide post can only slide along the guide groove, thereby causing the connector to move inward to fasten the pressure cap and the pot body, or causing the connector to extend outward to loosen the pressure cap and the pot body, thus realizing the opening and closing function of the pot lid.
[0007] The pressure cap has a sliding groove, and the connector is located within the sliding groove and can slide along it. The lower side of the panel has several guide ribs, which are distributed in two rows on both sides of the panel. The connector is located between the two rows of guide ribs and moves along the guide ribs. The sliding groove provides a sliding channel for the connector, and the guide ribs constrain the connector and guide post to move horizontally in a straight line only from the outside to the inside or from the inside to the outside.
[0008] The knob assembly includes a lower knob and an upper knob; the receiving cavity is disposed on the lower knob, and the top of the lower knob has a first annular groove formed by a downward indentation, and the inner wall of the annular groove has a first threaded section; the upper knob has an annular structure, and its lower side has a second threaded section and a first protruding ring, the second threaded section and the first protruding ring forming a second annular groove, and the first protruding ring and the outer periphery of the upper knob forming a planar step; the inner side of the upper knob protrudes inward to form a second protruding ring; the second threaded section of the upper knob and the first threaded section of the lower knob are screwed together by threads, the first protruding ring and the second threaded section are located in the first annular groove, and the step rests on the upper side of the lower knob on the outer periphery of the first annular groove; the knob decorative piece is held between the first threaded section and the second protruding ring.
[0009] The lower part of the knob has an anti-slip texture on its upper outer periphery. The anti-slip texture makes it easier to grip the lower part of the knob for rotation.
[0010] The anti-slip texture is a groove, and there are several grooves, which are evenly distributed longitudinally on the outer periphery of the upper part of the knob.
[0011] The connector has symmetrically arranged upward-extending raised ridges on both sides at both ends, with the top surface of the raised ridges being higher than the bottom surface of the guide ribs. The raised ridges prevent the connector from leaving the area between the guide ribs, thus avoiding it from deviating from the sliding path.
[0012] The mounting groove is provided with a first limiting hole and a second limiting hole, which are located on the periphery of the same circle centered on the center of the mounting groove. The lower end of the knob assembly has a second positioning hole, into which a spring and a steel ball are sequentially placed. One end of the spring abuts against the bottom of the second positioning hole, and the other end abuts against the steel ball, which abuts against the bottom surface of the mounting groove. The second positioning hole moves along the arc between the first and second limiting holes as the knob assembly rotates. The steel ball slides along the bottom of the mounting groove and engages with the first or second limiting hole as the knob assembly rotates. The first and second limiting holes indicate the range of motion of the knob assembly; rotation can be stopped when the steel ball is heard engaging the limiting hole.
[0013] The panel is provided with two markings: a locked state marking and an open state marking. The locked state marking is opposite to the position of the first limiting hole, and the open state marking is opposite to the position of the second limiting hole.
[0014] Compared with the existing technology, the advantages of this utility model are as follows: This cookware can be operated with one hand by rotating the knob assembly, and the pressure cap and the pot body can be fastened or loosened by one button, so as to open and close the pot lid. The operation is convenient. The knob decorative piece can also be replaced with a functional component for a specific purpose to improve versatility. Attached Figure Description
[0015] Figure 1 This is an exploded view of the structure of an embodiment of the present utility model;
[0016] Figure 2 This is a perspective view of an embodiment of the present utility model;
[0017] Figure 3 This is a front view of an embodiment of the present utility model;
[0018] Figure 4 for Figure 3 Sectional view along line AA;
[0019] Figure 5 for Figure 3 Sectional view along the BB direction;
[0020] Figure 6 for Figure 3 C-axis sectional view;
[0021] Figure 7 This is a cross-sectional view of the present invention, taken along the longitudinal direction of the panel.
[0022] Figure 8 This is a schematic diagram of the structure of this utility model after removing the panel and knob assembly;
[0023] Figure 9 This is a longitudinal section view of the knob assembly according to an embodiment of the present invention;
[0024] Figure 10 This is a structural diagram of the upper side of the lower knob component in an embodiment of this utility model;
[0025] Figure 11 This is a structural diagram of the lower part of the knob in an embodiment of the present invention, showing its lower side direction.
[0026] Figure 12 This is a structural diagram of the panel from the upper side of an embodiment of the present invention;
[0027] Figure 13 This is a schematic diagram of the structure of the panel in the lower direction of an embodiment of the present invention.
[0028] The meanings of the reference numerals in the diagram are as follows: 1. Pressure cap; 11. Slide groove; 2. Panel; 21. Mounting groove; 22. Guide groove; 23. Guide rib; 24. First limiting hole; 25. Second limiting hole; 26. Locked state indicator; 27. Open state indicator; 3. Lower knob part; 31. First positioning hole; 32. First annular groove; 33. First threaded section; 34. Anti-slip texture; 35. Second positioning hole; 4. Upper knob part; 41. Second threaded section; 42. First raised ring; 43. Second annular groove; 44. Stage; 45. Second raised ring; 5. Knob decorative piece; 6. Center bolt; 71. Pressure ring; 72. Connector; 73. Guide post; 74. Raised ridge. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0030] Example
[0031] See Figures 1 to 13 This is a pressure cooker lid, placed on the pot body, comprising a pressure lid 1, a panel 2, a knob assembly, a central nut, a central bolt 6, and a fastening structure. The panel 2 is mounted on the pressure lid 1, the lower part of the knob assembly passes through the panel 2, and the central bolt 6 passes through the knob assembly, panel 2, and pressure lid 1 in sequence before being tightened with the central nut. The knob assembly is sleeved around the central bolt 6 and can rotate around it. The inner end of the fastening structure passes through the panel 2 and connects to the knob assembly. The fastening structure slides along the pressure lid 1 as the knob assembly rotates, thus fastening or loosening the pressure lid 1 and a set of opposite sides of the pot body. The knob assembly has an upward-opening receiving cavity, at which a knob decorative piece 5 can be detachably installed. The structure of the central nut is not shown in the figures of this embodiment; the central nut is an existing device and does not require detailed structural analysis.
[0032] This pot lid is fastened or loosened by rotating the knob assembly, which can be operated with one hand, achieving one-button control of the opening and closing of the pot lid, making it convenient to operate; the setting of the receiving cavity allows the knob decorative piece 5 to be switched into a functional component for a specific purpose according to actual needs, improving versatility.
[0033] Panel 2 has a mounting groove 21, and a pair of guide grooves 22 are symmetrically provided in the mounting groove 21. A pair of fastening structures are symmetrically provided, each pair of fastening structures including a connector 72 and a pressure ring 71 provided at the outer end of the connector 72, and a guide post 73 is provided at the inner end of the connector 72. The lower end of the knob assembly has a set of symmetrical first positioning holes 31. The guide post 73 passes through the guide groove 22 and is fitted into the first positioning hole 31. When the knob assembly is rotated, the first positioning hole 31 forces the guide post 73 to slide along the guide groove 22, thereby driving the pressure ring 71 to fasten or loosen the pressure cover 1 and the pot body. When the knob assembly is rotated, the first positioning hole 31 rotates, forcing the guide post 73 to move. The guide post 73 can only slide along the direction of the guide groove 22, thereby driving the connector 72 to move inward so that the pressure ring 71 fastens the pressure cover 1 and the pot body, or driving the connector 72 to extend outward so that the pressure ring 71 loosens the pressure cover 1 and the pot body, thus realizing the opening and closing function of the pot lid.
[0034] The pressure cover 1 has a groove 11, and the connector 72 is located in the groove 11 and can slide along it; the lower side of the panel 2 has several guide ribs 23, which are distributed on both sides of the panel 2 to form two rows. The connector 72 is located between the two rows of guide ribs 23 and moves along the guide ribs 23. The groove 11 provides a sliding channel for the connector 72, and the guide ribs 23 can constrain the connector 72 and the guide post 73 to move horizontally in a straight line only from the outside to the inside or from the inside to the outside.
[0035] The knob assembly includes a lower knob part 3 and an upper knob part 4. A receiving cavity is disposed on the lower knob part 3. The top of the lower knob part 3 is provided with a first annular groove 32 formed by a downward indentation. The inner wall of the annular groove is provided with a first threaded section 33. The upper knob part 4 has an annular structure. Its lower side is provided with a second threaded section 41 and a first raised ring 42. A second annular groove 43 is formed between the second threaded section 41 and the first raised ring 42. The first raised ring 42 and the upper knob part 4 are connected. A planar step 44 is formed between the outer peripheries; a second raised ring 45 is formed by the inner side of the upper knob part 4 protruding inward; the second threaded section 41 of the upper knob part 4 and the first threaded section 33 of the lower knob part 3 are screwed together by threads; the first raised ring 42 and the second threaded section 41 are located in the first annular groove 32; the step 44 is placed on the upper side of the lower knob part 3 on the outer periphery of the first annular groove 32; the knob decorative piece 5 is sandwiched between the first threaded section 33 and the second raised ring 45.
[0036] The lower knob part 3 has anti-slip texture 34 on its upper outer periphery. The anti-slip texture 34 makes it easier to grip the lower knob part 3 for rotation operation.
[0037] The anti-slip texture 34 is a groove, and there are several grooves. The grooves are evenly distributed longitudinally on the outer periphery of the upper part of the knob lower part 3.
[0038] Both ends of the connector 72 are symmetrically provided with upwardly extending protruding ridges 74, the top surface of which is higher than the bottom surface of the guide rib 23. The protruding ridges 74 prevent the connector 72 from leaving the area between the guide ribs 23 and avoid it from leaving the sliding path.
[0039] The mounting groove 21 is provided with a first limiting hole 24 and a second limiting hole 25, which are located on the periphery of the same circle centered on the center of the mounting groove 21. A second positioning hole 35 is provided at the lower end of the knob assembly. A spring and a steel ball are sequentially placed in the second positioning hole 35. One end of the spring abuts against the bottom of the second positioning hole 35, and the other end abuts against the steel ball, which abuts against the bottom surface of the mounting groove 21. The second positioning hole 35 moves along the arc between the first limiting hole 24 and the second limiting hole 25 as the knob assembly rotates. The steel ball slides along the bottom of the mounting groove 21 and engages with the first limiting hole 24 or the second limiting hole 25 as the knob assembly rotates. The first limiting hole 24 and the second limiting hole 25 indicate the range of motion of the knob assembly. Rotation can be stopped when the steel ball is heard engaging the limiting hole. In this embodiment, the structure of the spring and steel ball is not shown; a spring column can also be used instead. With the cooperation of the spring and the steel ball, the steel ball can always slide against the bottom of the mounting groove 21. When it is engaged in the first limiting hole 24 or the second limiting hole 25, the sliding sound can be clearly felt to change, indicating that the knob assembly has been rotated to the set position (which can also be regarded as the limit position) and no further rotation is needed. At this time, the position is in the locked or opened state of the pressure ring 71.
[0040] Panel 2 has two markings: a locked state marking 26 and an open state marking 27. The locked state marking 26 is opposite to the first limiting hole 24, and the open state marking 27 is opposite to the second limiting hole 25.
[0041] In this embodiment, the first positioning hole 31 is provided on the lower knob part 3. The lower knob part 3 has three downward-facing cylindrical structures on its lower side, two of which are symmetrically arranged to form the first positioning hole 31, and the other cylindrical structure to form the second positioning hole 35.
[0042] Installation in this embodiment:
[0043] 1) Place the fastening structure on both sides of the pot lid.
[0044] 2) Place panel 2 on pressure cover 1, and align and pass the two guide posts 73 on pressure ring 71 with guide groove 22 on panel 2.
[0045] 3) Place the lower knob part 3 into the center hole of the panel 2 from top to bottom, and let the guide post 73 of the pressure ring 71 pass into the first positioning hole 31 of the lower knob part 3.
[0046] 4) Pass the center bolt 6 through the center hole of the knob lower part 3, the center hole of the panel 2, and the center hole of the pressure cover 1 from top to bottom, and tighten it with the center nut.
[0047] 5) Place the knob decorative piece 5 above the lower knob part 3; tighten the upper knob part 4 and the lower knob part 3 with threads to fix the knob decorative piece 5 on the knob.
[0048] The working principle of this embodiment:
[0049] By rotating the knob counterclockwise, the first positioning hole 31 of the lower knob part 3 drives the guide post 73 on the pressure ring 71 to move. Because the guide post 73 on the pressure ring 71 passes through the guide groove 22 of the panel 2 and is guided by the guide rib 23, the guide post 73 of the pressure ring 71 can only move horizontally in a straight line within the guide groove 22, either from the outside to the inside or from the inside to the outside. This causes the pressure ring 71 to tighten inwards or loosen outwards. When the lower knob rotates from the position of the second limiting hole 25 to the position of the first limiting hole 24, the pressure ring 71 changes from the open state to the locked state. When the lower knob rotates from the position of the first limiting hole 24 to the position of the second limiting hole 25, the pressure ring 71 changes from the locked state to the open state.
[0050] In this embodiment, the knob decorative piece 5 is replaceable; as needed, the decorative piece can be replaced with other functional components such as timers, thermometers, pressure gauges, etc.
[0051] This embodiment combines the characteristics of gear transmission and eccentric wheel rotation. By designing a first positioning hole 31 in the lower knob part 3 and connecting it with the guide groove 22 of the panel 2, the opening and locking of the pressure ring 71 is achieved. The first positioning hole 31 and the linear guide groove 22 are used separately to realize the arc transmission of the eccentric wheel, which reduces the complexity of the design of the two actions of eccentric wheel rotation and eccentricity and avoids the failure of the self-locking function when the eccentric wheel is forcibly pulled by external force. At the same time, the reliability of smooth transmission is achieved by combining the lever principle of symmetrical meshing of gears. The first positioning hole 31 of the lower knob part 3 is designed accordingly. The side of the first positioning hole 31 meshes with the guide post 73 of the pressure ring 71, so that the torque applied to the knob can be transmitted symmetrically, smoothly and reliably to the pressure ring 71 like a lever.
[0052] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.
Claims
1. A pressure cooker lid, placed on the body of a cooker, characterized in that: It includes a pressure cap, a panel, a knob assembly, a center nut, a center bolt, and a fastening structure; the panel is mounted on the pressure cap, the lower part of the knob assembly passes through the panel, the center bolt passes through the knob assembly, the panel, and the pressure cap in sequence and is tightened with the center nut, and the knob assembly is sleeved on the outer periphery of the center bolt and can rotate around it; The inner end of the fastening structure passes through the panel and is connected to the knob assembly. The fastening structure slides along the pressure cover as the knob assembly rotates to fasten or loosen the pressure cover and a set of opposite sides of the pot body. The knob assembly has an upward-opening receiving cavity, and a knob decorative piece can be detachably installed at the opening.
2. The pressure cooker lid according to claim 1, characterized in that: The panel is provided with a mounting groove, and the mounting groove is symmetrically provided with a pair of guide grooves; the fastening structure is symmetrically provided with a pair, each pair of fastening structures includes a connector and a pressure ring provided at the outer end of the connector, and a guide post is provided at the inner end of the connector; the lower end of the knob assembly is provided with a set of symmetrical first positioning holes, and the guide post passes through the guide groove and is sleeved in the first positioning hole. When the knob assembly is rotated, the first positioning hole forces the guide post to slide along the guide groove, thereby driving the pressure ring to fasten or loosen the pressure cap and the pot body.
3. The pressure cooker lid according to claim 2, characterized in that: The pressure cover has a sliding groove, and the connector is located in the sliding groove and can slide along it; the lower side of the panel has several guide ribs, which are distributed on both sides of the panel to form two rows, and the connector is located between the two rows of guide ribs and moves along the guide ribs.
4. The pressure cooker lid according to claim 1, characterized in that: The knob assembly includes a lower knob and an upper knob; the receiving cavity is disposed on the lower knob, and the top of the lower knob has a first annular groove formed by a downward indentation, and the inner wall of the annular groove has a first threaded section; the upper knob has an annular structure, and its lower side has a second threaded section and a first protruding ring, the second threaded section and the first protruding ring forming a second annular groove, and the first protruding ring and the outer periphery of the upper knob forming a planar step; the inner side of the upper knob protrudes inward to form a second protruding ring; the second threaded section of the upper knob and the first threaded section of the lower knob are screwed together by threads, the first protruding ring and the second threaded section are located in the first annular groove, and the step rests on the upper side of the lower knob on the outer periphery of the first annular groove; the knob decorative piece is held between the first threaded section and the second protruding ring.
5. The pressure cooker lid according to claim 4, characterized in that: The lower part of the knob has anti-slip texture on its upper outer periphery.
6. The pressure cooker lid according to claim 5, characterized in that: The anti-slip texture is a groove, and there are several grooves, which are evenly distributed longitudinally on the outer periphery of the upper part of the knob.
7. The pressure cooker lid according to claim 3, characterized in that: Both ends of the connector are symmetrically provided with upwardly extending protruding ridges on both sides, and the height of the top surface of the protruding ridge is higher than the height of the bottom surface of the guide rib.
8. The pressure cooker lid according to claim 2, characterized in that: The mounting groove is provided with a first limiting hole and a second limiting hole, which are located on the periphery of the same circle centered on the center of the mounting groove. The lower end of the knob assembly is provided with a second positioning hole, in which a spring and a steel ball are placed sequentially. One end of the spring abuts against the bottom of the second positioning hole, and the other end of the spring abuts against the steel ball, which abuts against the bottom surface of the mounting groove. The second positioning hole moves along the arc between the first limiting hole and the second limiting hole as the knob assembly rotates, and the steel ball slides along the bottom of the mounting groove as the knob assembly rotates and gets stuck in the first limiting hole or the second limiting hole.
9. The pressure cooker lid according to claim 8, characterized in that: The panel is provided with two markings: a locked state marking and an open state marking. The locked state marking is opposite to the position of the first limiting hole, and the open state marking is opposite to the position of the second limiting hole.