A pressure cooker cover and a pressure cooker

Abstract

The application discloses a high-pressure cooker cover and a high-pressure cooker, and relates to the technical field of high-pressure cooker accessories. The high-pressure cooker cover comprises a cover, a shell and a handle, the left and right sides of the shell are slidably provided with left and right buckle plates, the top end of the handle is rotatably provided with a rotary knob, the rotary knob is connected with a clamping block, a support in the handle is movably provided with a transmission block, the clamping block and the transmission block are in abutting cooperation with each other, the transmission block is hingedly connected with left and right transmission strips on the two sides, and the other ends of the transmission strips are movably connected with left and right sliding blocks connected with the buckle plates. The rotary knob can drive the transmission block to slide up and down along the support through the clamping block, and the left and right buckle plates are driven to move horizontally through the transmission strips and the sliding blocks in sequence, so that the cover and the pot body are locked or unlocked. The single-rotary-knob linkage buckle structure is adopted, the left and right buckle plates are synchronously driven by one rotation, the operation is simple and labor-saving, the buckle is synchronously stressed and buckled in place, the sealing is reliable, and the problems of the traditional high-pressure cooker cover, such as labor-consuming opening and closing, complicated operation and easy unilateral locking, are effectively solved.

Description

Technical Field

[0001] This invention relates to the technical field of pressure cooker accessories, and more specifically, to a pressure cooker lid and a pressure cooker. Background Technology

[0002] Pressure cookers are a common cooking appliance in modern kitchens, widely popular for their ability to quickly cook food. However, traditional pressure cooker lids typically require rotating the entire lid or operating multiple latches individually to open, which is quite strenuous, especially for elderly users or those with less strength. Furthermore, some pressure cooker lids require multiple steps to open and close, such as unlocking the safety device before rotating the handle, making the process cumbersome and prone to defects such as incomplete locking, one-sided locking, and difficulty in alignment. Existing single-drive pressure cookers have complex transmission structures with large gaps in multi-stage transmissions, which can easily lead to jamming, loose latches, and seal failure with prolonged use, posing safety hazards. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pressure cooker lid and pressure cooker with simple operation and a single knob linkage locking mechanism.

[0004] According to a first aspect of the present invention, a pressure cooker lid includes a lid with a shell on top and a handle on top of the shell. Left and right locking plates for fastening the lid to the pot body are slidably disposed on the left and right sides of the shell, respectively. A knob is rotatably mounted on the top of the handle, and the knob is connected to a locking block disposed within the handle. A bracket is longitudinally fixedly mounted inside the handle, and a transmission block is movably mounted within the bracket. The locking block and the transmission block abut against each other. Both sides of the transmission block are hinged to one end of left and right transmission bars, and the other ends of the left and right transmission bars are movably connected to left and right sliders. The left and right sliders are respectively connected to the left and right locking plates. Rotating the knob causes the transmission block to slide up and down along the bracket via the locking block, thereby sequentially moving the left and right locking plates horizontally via the left and right transmission bars and the left and right sliders.

[0005] According to some embodiments of the present invention, the outer wall of the knob is provided with a positioning groove, and the handle is provided with a positioning bead corresponding to the positioning groove.

[0006] According to some embodiments of the present invention, the bracket is provided with a vertical guide groove, and the transmission block is constrained to slide vertically in a straight line inside the guide groove.

[0007] According to some embodiments of the present invention, the bracket is provided with a shaft, and the locking block is movably connected to the shaft.

[0008] According to some embodiments of the present invention, the positioning block is provided with an eccentric arc-shaped groove, and the transmission block is provided with a convex shaft that passes through the eccentric arc-shaped groove. When the positioning block rotates around the shaft, the eccentric arc-shaped groove drives the transmission block to slide up and down along the bracket through the convex shaft.

[0009] According to some embodiments of the present invention, a crossbar extends from the knob, and the crossbar is inserted into and installed with a protrusion on the locking block.

[0010] According to some embodiments of the present invention, the left and right buckle plates are respectively provided with strip-shaped holes, and the inner side of the pot lid extends upward with a limiting post, which is inserted into the strip-shaped hole.

[0011] According to some embodiments of the present invention, the left buckle plate and the right buckle plate are respectively provided with uprights facing upwards, and the uprights are inserted into the mounting holes of the left and right sliders.

[0012] According to an embodiment of the present invention, a pressure cooker lid has at least the following beneficial effects: This product allows the left and right side plates to move horizontally simultaneously simply by rotating the knob. The left and right side plates are driven synchronously by the same transmission source, and the left and right latches are simultaneously stressed and engaged, eliminating defects such as one-sided locking, incomplete engagement, and difficulty in alignment. The lid is evenly stressed around its perimeter, ensuring a reliable seal. Since the lid can be locked or unlocked in a single operation, without rotating the entire lid or operating multiple latches separately, the operation is labor-saving and convenient, making it more user-friendly for elderly users and those with less strength.

[0013] According to a second aspect of the present invention, a pressure cooker includes a pot body and a pressure cooker lid according to a first aspect of the present invention. The pot body has a raised edge, and hooks on the left and right retaining plates can be engaged with the raised edge. Furthermore, a sealing strip is provided inside the hooks to press against the lid and the pot body.

[0014] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the pressure cooker structure of the present invention; Figure 2 This is a cross-sectional view of the pressure cooker of the present invention; Figure 3 This is an exploded view of the pressure cooker lid of the present invention; Figure 4 This is a diagram of the internal transmission structure of the pressure cooker lid of the present invention; Figure 5This is a split view of the internal transmission mechanism of the handle of the present invention.

[0016] Explanation of the labels in the diagram: 1. Pot lid; 2. Shell; 3. Handle; 4. Left latch plate; 4'. Right latch plate; 5. Transmission block; 51. Protruding shaft; 6. Locking block; 61. Eccentric arc groove; 62. Protruding rod; 7. Transmission bar; 8. Bracket; 81. Guide groove; 82. Shaft; 9. Sliding block; 10. Pot body; 11. Protruding edge; 12. Sealing strip; 13. Limiting post; 31. Knob; 32. Positioning groove; 33. Positioning ball; 34. Crossbar; 41. Hook; 42. Strip hole. Detailed Implementation

[0017] Embodiments of the present invention 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 below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0019] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0020] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1-2A pressure cooker lid includes a lid 1, with a shell 2 on top of the lid 1. The shell 2 covers the lid 1 and houses and conceals the internal transmission parts, resulting in a neat and aesthetically pleasing appearance. In this embodiment, the shell 2 is integrally injection molded from high-temperature resistant engineering plastic, which can withstand the high-temperature steam environment generated during pressure cooker cooking and is easy to process and form, reducing manufacturing costs. It is understood that the shell 2 can also be made from stainless steel sheet by stamping to improve overall structural strength and durability. A handle 3 is provided on the top of the shell 2 for easy lifting and moving of the lid. A knob 31 is rotatably mounted on the top of the handle 3, which is the sole drive input of the entire locking mechanism. The outer wall of the knob 31 has an anti-slip texture to increase the friction between the fingers and the knob 31, facilitating rotation and preventing slippage.

[0022] Reference Figure 3 , Figure 4 Inside the housing 2, a left latching plate 4 and a right latching plate 4' are slidably disposed on the left and right sides respectively. The left latching plate 4 and the right latching plate 4' can slide left and right in the horizontal direction to fasten the lid 1 and the pot body 10. Specifically, the left latching plate 4 and the right latching plate 4' are respectively provided with strip-shaped holes 42. A limiting post 13 extends upward from the inner side of the lid 1 and is inserted into the strip-shaped hole 42. The cooperation between the limiting post 13 and the strip-shaped hole 42 not only restricts the movement trajectory of the latching plate, so that the latching plate can only move horizontally along the length direction of the strip-shaped hole 42, but also limits the maximum sliding stroke of the latching plate to prevent the latching plate from falling off. As a preferred solution, the two ends of the strip-shaped hole 42 can be provided with chamfer transition to avoid rigid impact between the limiting post 13 and the end wall of the strip-shaped hole 42, reduce wear caused by long-term use, and reduce noise during opening and closing.

[0023] Reference Figure 4 Furthermore, hooks 41 are respectively provided on the left buckle plate 4 and the right buckle plate 4' facing the pot body 10. The lower end face of the hook 41 forms a guide slope. During the process of placing the pot lid 1 on the pot body 10, the guide slope can cooperate with the protruding edge 11 of the pot body 10 to guide the hook 41 to automatically slide into the buckling position, reduce the alignment accuracy requirements, and further improve the ease of use.

[0024] Reference Figure 5 The knob 31 is connected to a locking block 6 located inside the handle 3. Specifically, a crossbar 34 extends from the knob 31, and the crossbar 34 is inserted into the protrusion 62 on the locking block 6. When the knob 31 rotates, the locking block 6 rotates synchronously through the insertion and engagement of the crossbar 34 and the protrusion 62. The insertion connection method facilitates assembly, disassembly and maintenance. When the knob 31 or the locking block 6 is damaged, it can be replaced separately without disassembling the entire transmission system, thus reducing maintenance costs.

[0025] Reference Figure 4 , Figure 5A bracket 8 is fixedly installed longitudinally inside the handle 3, and a transmission block 5 is movably installed inside the bracket 8. A locking block 6 abuts against the transmission block 5. Specifically, a shaft 82 is provided on the bracket 8, and the locking block 6 is movably connected to the shaft 82, allowing the locking block 6 to rotate around the shaft 82. A vertical guide groove 81 is provided inside the bracket 8, and the transmission block 5 is constrained within the guide groove 81 to slide linearly up and down. The guide groove 81 limits the movement trajectory of the transmission block 5, ensuring the stability and accuracy of the transmission. It can be understood that there can be two sets of guide grooves 81 arranged symmetrically, constraining the two sides of the transmission block 5 respectively, further improving the smoothness of the transmission block 5 during sliding and preventing the transmission block 5 from deflecting and jamming during the force process.

[0026] Reference Figure 5 The locking block 6 is provided with an eccentric arc-shaped groove 61, and the transmission block 5 is provided with a convex shaft 51 that passes through the eccentric arc-shaped groove 61. When the locking block 6 rotates around the shaft 82, the inner wall of the eccentric arc-shaped groove 61 pushes against the convex shaft 51. Since the radius of rotation of the eccentric arc-shaped groove 61 relative to the shaft 82 is different at different points, the convex shaft 51 is pushed against by the groove wall of the eccentric arc-shaped groove 61 while rotating with the locking block 6, thereby driving the transmission block 5 to slide up and down along the guide groove 81 of the bracket 8, realizing the motion transformation of the rotational motion of the knob 31 into the linear motion of the transmission block 5. Since the transmission between the eccentric arc-shaped groove 61 and the convex shaft 51 is a surface contact or line contact, the contact stress is small, the wear is uniform, and the transmission accuracy decays little over long-term use.

[0027] Reference Figure 5 The transmission block 5 is hinged to one end of the left and right transmission bars 7 on both sides. The other ends of the left and right transmission bars 7 are movably connected to left and right sliders 9, which are respectively connected to the left buckle plate 4 and the right buckle plate 4'. Specifically, the left buckle plate 4 and the right buckle plate 4' are respectively provided with uprights, which are inserted into the mounting holes of the left and right sliders 9. When the transmission block 5 slides up and down, the left and right sliders 9 are driven to move synchronously in the horizontal direction by the pushing and pulling of the left and right transmission bars 7, which in turn drives the left buckle plate 4 and the right buckle plate 4' to move horizontally, realizing the opening and closing of the lock. Since the transmission block 5, the left and right transmission bars 7, the left slider 9 and the right slider 9 form a symmetrical transmission structure, the single vertical movement of the transmission block 5 is necessarily converted into the equal and synchronous horizontal movement of the left and right buckles, which ensures the consistency of the left and right lock actions from the structural principle.

[0028] Furthermore, the housing 2 can be equipped with corresponding horizontal guide rails for the left and right sliders 9 to slide, guide and limit the horizontal movement of the sliders 9, further reduce the transmission gap, and improve the smoothness of the buckle plate movement.

[0029] Reference Figure 1 and Figure 2The outer wall of the knob 31 is provided with a positioning groove 32, and the handle 3 is provided with a positioning ball 33 corresponding to the positioning groove 32. The positioning ball 33 elastically presses against the outer wall of the knob 31. In this embodiment, two sets of positioning grooves 32 are symmetrically arranged, corresponding to the locking position and the unlocking position respectively. When the knob 31 is rotated to the locking position or the unlocking position, the positioning ball 33 engages with the positioning groove 32, producing a clear tactile feedback, indicating to the user that the operation is in place, and at the same time locking the knob 31 in the current position, preventing the knob 31 from being accidentally rotated or the lock from being loosened due to fluctuations in steam pressure inside the pot 10 or accidental collision, thus playing a safety role.

[0030] A pressure cooker includes a pot body 10 and a pressure cooker lid as described above. The pot body 10 has a raised edge 11, and hooks 41 on the left and right retaining plates 4' can be engaged with the raised edge 11. A sealing strip 12 is provided inside the hooks 41, pressing against the lid 1 and the pot body 10. In this embodiment, the sealing strip 12 is made of food-grade high-temperature resistant silicone. In the locked state, the hooks 41 clamp the raised edge 11, pressing the sealing strip 12. The sealing strip 12 undergoes elastic deformation under pressure, filling the assembly gap between the lid 1 and the pot body 10, thus forming a sealed high-pressure chamber between the lid 1 and the pot body 10, ensuring sealing and safety during cooking.

[0031] When the pressure cooker lid of the present invention is locked, the lid 1 is placed on the pot body 10, and the knob 31 is rotated clockwise. The knob 31 drives the locking block 6 to rotate around the shaft 82 through the crossbar 34 and the protruding rod 62. The eccentric arc groove 61 on the locking block 6 pushes against the protruding shaft 51 on the transmission block 5, driving the transmission block 5 to slide downward along the guide groove 81 of the bracket 8. When the transmission block 5 moves downward, the left and right sliding blocks 9 are pushed horizontally by the left and right transmission bars 7 hinged on both sides. The left and right sliding blocks 9 drive the left buckle plate 4 and the right buckle plate 4' to move horizontally, so that the hook 41 is engaged on the protruding edge 11 of the pot body 10, pressing the sealing strip 12, and forming a sealed high-pressure chamber between the lid 1 and the pot body 10. After the knob 31 is rotated to the position, the positioning ball 33 is engaged in the positioning groove 32, producing obvious tactile feedback, indicating that the locking is in place and the locking is completed.

[0032] When performing the unlocking action: Rotate the knob 31 counterclockwise, the locking block 6 rotates in the opposite direction, the eccentric arc groove 61 drives the transmission block 5 to slide upward along the guide groove 81, the transmission block 5 pulls the left and right sliders 9 to move in the opposite direction through the left and right transmission bars 7, driving the left buckle plate 4 and the right buckle plate 4' to move horizontally back, the hook 41 disengages from the protruding edge 11 of the pot body 10, the lock is unlocked, at this time the pot lid 1 can be lifted upward to complete the opening of the lid.

[0033] The entire opening and closing process only requires one hand to rotate the knob 31 once to achieve synchronous linkage of the left and right buckles. It is easy to operate, the buckle is evenly stressed, and the seal is reliable.

[0034] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A pressure cooker lid, characterized in that: The container includes a lid (1), a shell (2) on top of the lid (1), a handle (3) on top of the shell (2), a left latching plate (4) and a right latching plate (4') for fastening the lid (1) to the pot body (10) on the left and right sides of the shell (2) respectively, a knob (31) is rotatably mounted on the top of the handle (3), the knob (31) is connected to a locking block (6) set in the handle (3), a bracket (8) is fixedly mounted longitudinally in the handle (3), and a transmission block (5) is movably mounted in the bracket (8). The locking block (6) and the transmission block (5) abut against each other. The two sides of the transmission block (5) are hinged to one end of the left and right transmission bars (7). The other end of the left and right transmission bars (7) is movably connected to the left and right sliders (9). The left and right sliders (9) are connected to the left buckle plate (4) and the right buckle plate (4') respectively. Rotating the knob (31) can drive the transmission block (5) to slide up and down along the bracket (8) through the locking block (6), thereby driving the left buckle plate (4) and the right buckle plate (4') to move horizontally in sequence through the left and right transmission bars (7) and the left and right sliders (9).

2. A pressure cooker lid according to claim 1, characterized in that: The outer wall of the knob (31) is provided with a positioning groove (32), and the handle (3) is provided with a positioning bead (33) corresponding to the positioning groove (32).

3. A pressure cooker lid according to claim 1, characterized in that: The bracket (8) is provided with a vertical guide groove (81), and the transmission block (5) is constrained to slide vertically inside the guide groove (81).

4. A pressure cooker lid according to claim 1, characterized in that: The bracket (8) is provided with a shaft (82), and the locking block (6) is movably connected to the shaft (82).

5. A pressure cooker lid according to claim 4, characterized in that: The locking block (6) is provided with an eccentric arc groove (61), and the transmission block (5) is provided with a convex shaft (51) that passes through the eccentric arc groove (61). When the locking block (6) rotates around the shaft (82), the eccentric arc groove (61) drives the transmission block (5) to slide up and down along the bracket (8) through the convex shaft (51).

6. A pressure cooker lid according to claim 1, characterized in that: A crossbar (34) extends from the knob (31), and the crossbar (34) is inserted into the protrusion (62) on the locking block (6).

7. A pressure cooker lid according to claim 1, characterized in that: The left buckle plate (4) and the right buckle plate (4') are respectively provided with strip holes (42), and the inner side of the pot lid (1) extends upward with a limiting post (13), which is inserted into the strip hole (42).

8. A pressure cooker lid according to claim 1, characterized in that: The left buckle plate (4) and the right buckle plate (4') are respectively provided with uprights facing upwards, and the uprights are inserted into the mounting holes of the left and right sliders (9).

9. A pressure cooker, characterized in that: The pressure cooker includes a pot body (10) and a pressure cooker lid as described in any one of claims 1 to 8. The pot body (10) is provided with a protruding edge (11), and the hooks (41) on the left buckle plate (4) and the right buckle plate (4') can be engaged with the protruding edge (11).

10. A pressure cooker according to claim 9, characterized in that: The inner side of the hook (41) is provided with a sealing strip (12) that presses against the lid (1) and the pot body (10).

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