Exhaust assembly and cooking appliance

Abstract

The application provides an exhaust assembly and a cooking utensil. The exhaust assembly comprises an exhaust pipe and a pressure limiting valve, a driving lever, and a pressing assembly arranged on a cover body and drivingly matched with the driving lever. The pressing assembly comprises a limiting structure comprising a fixed seat and a movable member movably arranged in the fixed seat. The fixed seat is provided with a first mounting hole. The movable member is arranged on the circumferential outer side of the first mounting hole. The movable member is provided with a first guide wall gradually inclined inward from bottom to top. The inner edge of the first guide wall protrudes inward from the inner edge of the first mounting hole. The key structure comprises a key, an elastic reset member, and a limiting protrusion arranged on the side wall of the key. The key is movably arranged and has an initial position, a locked position, and a reset position. The elastic reset member applies an upward reset force to the key. The technical scheme of the application can solve the problem of the key structure in the related art that is prone to jamming when pressed.

Description

Technical Field

[0001] This invention relates to the field of small household appliances, and more specifically, to an exhaust assembly and a cooking appliance. Background Technology

[0002] Pressure cooking appliances are generally equipped with a pressure limiting valve. The pressure limiting valve has a blocking position for sealing the exhaust pipe and an opening position for opening the exhaust pipe. Users can open the pressure limiting valve by manually pressing the exhaust button.

[0003] When the user presses the vent button for the first time, the vent button moves downward and remains in this position. The vent button pushes the pressure relief valve upward through the drive lever, thereby moving the pressure relief valve from the sealed position to the venting position, achieving pressure relief and venting. When the user presses the vent button again, the vent button returns to its original position and no longer applies driving force to the drive lever. At this time, the drive lever no longer pushes the pressure relief valve, and the pressure relief valve can fall from the venting position back to the sealed position.

[0004] The exhaust button in the relevant technology has a complex structure, which can easily cause it to jam when pressed, affecting the user experience. Summary of the Invention

[0005] The main objective of this invention is to provide a venting assembly and a cooking appliance to solve the problem of venting buttons easily getting stuck in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a venting assembly is provided. The venting assembly is disposed on the lid of a cooking appliance. The venting assembly includes: a vent pipe and a pressure limiting valve, the vent pipe passing through the lid and the pressure limiting valve disposed at the top of the vent pipe; a drive lever movably disposed within the lid, the first end of the drive lever engaging with the pressure limiting valve; and a pressing assembly disposed on the lid, the driving end of the pressing assembly engaging with the second end of the drive lever. The pressing assembly includes: a limiting structure including a fixed base and a movable member movably disposed within the fixed base, the fixed base having a first mounting hole, the movable member being disposed circumferentially outside the first mounting hole, and the movable member having a first guide wall gradually inclining inward from bottom to top, the inner edge of the first guide wall protruding inward from the inner edge of the first mounting hole; and a button structure including a button and an elastic retainer. The button and a limiting protrusion on the side wall of the button are provided. The limiting protrusion is retractably provided in the radial direction of the button structure. The button extends downward through the first mounting hole. The bottom end of the button forms a driving end. The button is movably provided and has an initial position, a locked position, and a reset position. An elastic reset member applies an upward reset force to the button. When the button is in the initial position, the limiting protrusion is above the fixed base. When the button moves from the initial position to the locked position, the limiting protrusion retracts inward and extends through the first mounting hole to engage with the fixed base. When the button is in the reset position, the limiting protrusion is below the movable member. When the button moves from the reset position to the initial position, the button moves upward under the reset force of the elastic reset member, so that the limiting protrusion retracts inward under the action of the first guide wall of the movable member and extends upward through the first mounting hole.

[0007] Using the technical solution of this invention, the button is movably disposed within the limiting structure and has an initial position, a locked position, and a reset position. When the button is in the initial position, the limiting protrusion is located above the fixed seat, and the driving end of the button is not engaged with the driving lever. At this time, the cooking appliance is in a non-working state or a pressure cooking state. When pressure relief is required, the user can press the button down to move it from the initial position to the locked position. At this time, the limiting protrusion retracts inward under the squeezing force of the wall of the first mounting hole, passes through the first mounting hole, and enters between the fixed seat and the movable part. At this time, the fixed seat can stop the limiting protrusion, keeping the button in the locked position. This causes the first end of the driving lever to drive the pressure relief valve to move to the venting position, realizing the pressure relief of the cooking appliance. After the pressure relief and venting are complete, the user presses the button again, moving it from the locked position to the reset position. At this time, the limiting protrusion retracts inward under the pressure of the inner wall of the moving part, passing through the inner hole and moving below it. When the user releases the button, it moves back to its initial position under the reset force of the elastic reset component. Simultaneously, the limiting protrusion retracts inward, quickly passing through the first mounting hole and the inner hole of the moving part, returning to its initial position. At this point, the second end of the drive lever loses the driving force of the button and no longer pushes the pressure relief valve, causing the valve to fall back to the sealing position. The aforementioned pressing component has low machining precision requirements, is easy to design, and is convenient to operate. During the button's movement, the limiting protrusion and the fixed seat or moving part form a sliding fit between a line and a surface, effectively reducing the probability of jamming and improving the user experience.

[0008] Furthermore, the first mounting hole includes a second guide wall that gradually slopes inward from top to bottom. This structure allows the limiting protrusion to move more smoothly when passing through the first mounting hole, reducing the probability of the limiting protrusion getting stuck with the fixing seat, while also improving the user's pressing feel and thus enhancing the user experience.

[0009] Furthermore, the movable component also includes a third guide wall located above the first guide wall, which gradually slopes inward from top to bottom. This structure guides the contraction of the limiting protrusion when the button moves, allowing the button to move more smoothly from the locked position to the reset position. This reduces the probability of jamming between the limiting protrusion and the movable component, while also improving the user's pressing feel and thus enhancing the user experience.

[0010] Furthermore, the angle between the third guide wall and the horizontal plane is between 15° and 60°. In the above structure, the third guide wall makes it easier for the button to be pressed from the locked position to the reset position, thus saving the user effort.

[0011] Furthermore, the mounting base is provided with a conical surface that abuts against the third guide wall. This structure reduces the probability of the button returning to the locked position during the reset process, thus improving the stability of the button's reset function.

[0012] Furthermore, the fixed base includes a top plate and side plates disposed in the circumferential direction of the top plate. A first mounting hole is disposed on the top plate, and the movable component is disposed within the space formed by the top plate and the side plates. In the above structure, the top plate and side plates of the fixed base can enclose a movable space, which on the one hand limits the movement of the movable component, and on the other hand provides sufficient space for the movable component to move. The above structure is simple, has low machining accuracy requirements, and is easy to manufacture.

[0013] Furthermore, the movable component has a ring-shaped structure. The inner hole of the movable component includes a lower hole section that gradually slopes inward from bottom to top and an upper hole section that gradually slopes inward from top to bottom. The lower hole section forms a first guide wall, and the upper hole section forms a third guide wall. The above structure is simple, easy to process, and the movable component can move flexibly. The movable component is integrally formed, which also facilitates the assembly of the movable component and the fixed base.

[0014] Furthermore, the movable component includes multiple movable blocks spaced apart circumferentially in the first mounting hole. The fixed base contains multiple upwardly extending guide structures. Each movable block is guided by one guide structure. The inner sidewall of each movable block includes a lower sidewall that gradually slopes inward from bottom to top and an upper sidewall that gradually slopes inward from top to bottom. The multiple lower sidewalls form a first guide wall, and the multiple upper sidewalls form a third guide wall. The movable component has a compact structure, which saves on manufacturing costs.

[0015] Furthermore, the pressing assembly also includes a base, a fixed seat disposed on the base, a movable member located between the fixed seat and the base, and an upwardly extending guide structure provided on the base. The movable member slides in cooperation with the guide structure. In the above structure, the guide structure can guide the movement of the movable member, improving the operational stability of the pressing assembly.

[0016] Furthermore, the limiting protrusion includes a protrusion passing through the button, and an arc-shaped spring piece connected to the protrusion is provided within the button structure. The above structure is simple, and the limiting protrusion has high flexibility.

[0017] Furthermore, the button structure includes a spring plate disposed on the side wall of the button. The first end of the spring plate is connected to the side wall of the button, and the second end of the spring plate is a free end that can swing along the radial direction of the button. A limiting protrusion is disposed on the spring plate. In the above structure, the limiting protrusion can be integrally injection molded with the button, which is convenient for processing and saves the steps of assembling the limiting protrusion and the button.

[0018] Furthermore, the button structure also includes an elastic sleeve, which is located at the bottom of the button. In the above structure, the elastic sleeve can transmit the driving force of the button to the driving lever, and at the same time, it can share part of the downward stroke of the button through its own compression, thereby reducing the longitudinal movement space required by the driving lever.

[0019] Furthermore, the button includes a pressure cap and a drive rod disposed below the pressure cap. A limiting protrusion passes through the drive rod, which extends downward through a first mounting hole. The bottom end of the drive rod forms a drive end, and the first end of the elastic reset member mates with the pressure cap. In the above structure, the pressure cap has a large pressing area, facilitating user pressing operation. The elastic sleeve is disposed at the bottom end of the drive rod and engages with the second end of the drive lever. The above structure is simple and easy to manufacture.

[0020] According to another aspect of the present invention, a cooking appliance is provided, comprising a pot body; a lid body disposed on the pot body; and a venting assembly disposed on the lid body, wherein the venting assembly is the aforementioned venting assembly. In the above structure, since the venting assembly has the advantages of low processing precision requirements, simple design, and good user experience, the cooking appliance having it also possesses the aforementioned advantages.

[0021] Furthermore, the cover includes a cover body and a handle disposed on the cover body. The handle includes a handle base and a handle cover. The handle base has a through hole, and the driving end of the button passes through the through hole. The handle base and handle cover enclose an installation space. A limiting structure is disposed within the installation space. The handle cover has a receiving recess, and the button of the pressing component is disposed within the receiving recess. The elastic reset member of the pressing component is located between the button and the bottom wall of the receiving recess. In the above structure, the pressing component is disposed within the handle, which can make full use of the installation space within the handle, making the surface of the cover cleaner and more aesthetically pleasing.

[0022] Furthermore, the cover body includes a front cover and an inner cover located below the front cover. A handle is located on the front cover, an exhaust pipe passes through the front cover and the inner cover, and a drive lever is pivotally located between the front cover and the inner cover. This structure makes the internal layout of the cover body neat and reasonable, which is conducive to the effective cooperation of the pressure relief valve, the drive lever, and the pressing assembly. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A cross-sectional view of an embodiment of the lid of a cooking utensil according to the present invention is shown; Figure 2 It shows Figure 1 An enlarged structural diagram of point A on the cover; Figure 3 It shows Figure 1 An enlarged schematic diagram of a portion of the cover structure, in which... Figure 3 A schematic diagram of the structure when the button is in its initial position is shown; Figure 4 It shows Figure 1 An enlarged schematic diagram of a portion of the cover structure, in which... Figure 4 A schematic diagram of the structure when the button is in the locked position is shown; Figure 5 It shows Figure 1 An enlarged schematic diagram of a portion of the cover structure, in which... Figure 5 This diagram shows the structure when the button is in the reset position. Figure 6 It shows Figure 5 An enlarged structural diagram of point B on the cover; Figure 7 It shows Figure 1 An enlarged schematic diagram of a portion of the cover structure, in which... Figure 7 This diagram illustrates the state of the button as it moves from the reset position to the initial position. Figure 8 It shows Figure 1 A three-dimensional structural diagram of the movable component of the limiting structure of the cover; Figure 9 It shows Figure 8 A sectional view of the moving parts; Figure 10 It shows Figure 1 A three-dimensional structural diagram of the fixing seat of the limiting structure of the cover; Figure 11 It shows Figure 10 A sectional view of the mounting base; Figure 12 It shows Figure 1 A three-dimensional schematic diagram of the button structure of the cover; Figure 13 It shows Figure 1 A three-dimensional structural schematic diagram of another embodiment of the movable component of the limiting structure of the cover; Figure 14 It shows Figure 1 A partially enlarged view of another embodiment of the cover; Figure 15 It shows Figure 1 A three-dimensional structural diagram of another embodiment of the button structure of the cover.

[0024] The above figures include the following reference numerals: 10. Limiting structure; 11. Fixing base; 111. First mounting hole; 1111. Second guide wall; 112. Conical surface; 113. Top plate; 114. Side plate; 12. Moving part; 121. Inner hole of moving part; 1211. First guide wall; 1212. Third guide wall; 122. Limiting ring; 13. Guide structure; 20. Button structure; 21. Button; 211. Pressure cap; 212. Drive rod; 213. Locking mechanism 22. Hook; 22. Limiting protrusion; 222. Arc-shaped spring; 23. Elastic reset component; 24. Elastic sleeve; 223. Spring plate; 30. Cover; 3. Installation space; 31. Cover body; 311. Face cover; 312. Inner cover; 32. Handle; 321. Handle seat; 3211. Through hole; 322. Handle cover; 3221. Receiving recess; 40. Exhaust pipe; 50. Pressure relief valve; 60. Drive lever; 70. Pressing assembly. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] like Figures 1 to 7 as well as Figure 9As shown, a venting assembly is mounted on the lid of the cooking appliance. The venting assembly includes: a vent pipe 40, a pressure relief valve 50, a drive lever 60, and a pressing assembly 70. The vent pipe 40 passes through the lid, and the pressure relief valve 50 is located at the top of the vent pipe 40. The drive lever 60 is movably mounted inside the lid, with its first end engaging with the pressure relief valve 50. The pressing assembly 70 is mounted on the lid, and its driving end engages with the second end of the drive lever 60. The pressing assembly 70 includes: a limiting structure 10 and a button structure 20. The limiting structure 10 includes a fixed base 11 and a movable member 12 movably disposed within the fixed base 11. The fixed base 11 has a first mounting hole 111. The movable member 12 is disposed on the circumferential outer side of the first mounting hole 111. The movable member 12 has a first guide wall 1211 that gradually slopes inward from bottom to top. The inner edge of the first guide wall 1211 protrudes inward from the inner edge of the first mounting hole 111. The button structure 20 includes a button 21, an elastic reset member 23, and a limiting protrusion 22 disposed on the side wall of the button 21. The limiting protrusion 22 is retractably disposed in the radial direction of the button structure 20. The button 21 extends downward through the first mounting hole 111. The bottom end of the button 21 forms a driving end. The button 21 is movably disposed and has... In the initial position, locked position, and reset position, the elastic reset member 23 applies an upward reset force to the button 21. When the button 21 is in the initial position, the limiting protrusion 22 is located above the fixed base 11. When the button 21 moves from the initial position to the locked position, the limiting protrusion 22 retracts inward, passing through the first mounting hole 111 and engaging with the fixed base 11. When the button 21 is in the reset position, the limiting protrusion 22 is located below the movable member 12. When the button 21 moves from the reset position to the initial position, the button 21 moves upward under the reset force of the elastic reset member 23, causing the limiting protrusion 22 to retract inward under the action of the first guide wall 1211 of the movable member 12 and pass upward through the first mounting hole 111.

[0029] Using the technical solution of this embodiment, button 21 is movably disposed within the limiting structure 10 and has an initial position, a locked position, and a reset position. When button 21 is in the initial position (e.g., Figure 3 As shown), the limiting protrusion 22 is located above the fixed base 11, and the driving end of the button 21 is not engaged with the driving lever 60. At this time, the cooking appliance is in a non-working state or a pressure cooking state. When pressure relief is required, the user can press down on the button 21 to move it from the initial position to the locked position. At this time, the limiting protrusion 22 retracts inward under the pressure of the hole wall of the first mounting hole 111, passes through the first mounting hole 111, and enters the space between the fixed base 11 and the movable part 12 (e.g., Figure 4As shown), at this time, the limiting protrusion 22 protrudes from the side wall of the button 21 under the action of its own elastic restoring force. The fixing seat 11 can stop the limiting protrusion 22, keeping the button 21 in the locked position and preventing it from returning to the initial position under the action of the restoring force of the elastic reset member 23. The button 21 in the locked position can move the second end of the drive lever 60, thereby driving the first end of the drive lever 60 to move the pressure relief valve to the exhaust position, realizing the pressure relief and exhaust of the cooking appliance. After the pressure relief and exhaust are completed, the user presses the button 21 again, causing the button 21 to move from the locked position to the reset position. At this time, the limiting protrusion 22 retracts inward under the squeezing force of the inner hole 121 of the movable member, passes through the inner hole 121 of the movable member, and moves to the bottom of the movable member 12. After the user releases the button, the button 21 moves back to the initial position under the action of the restoring force of the elastic reset member 23. The limiting protrusion 22 can drive the movable member 12 to move upward until the movable member 12 is close to the fixing seat 11 (as shown). Figure 5 and Figure 6 As shown), at this time, the limiting protrusion 22 and the first guide wall 1211 of the movable member 12 are in abutting engagement. The limiting protrusion 22 has an upward tendency due to the restoring force of the elastic restoring member 23. The first guide wall 1211 can also guide the limiting protrusion 22 to retract inward. Under the upward restoring force and the guidance of the first guide wall 1211, the limiting protrusion 22 can retract inward and quickly pass through the first mounting hole 111 and the inner hole 121 of the movable member (as shown). Figure 7 As shown), returning to the initial state, the second end of the drive lever 60 loses the driving effect of the button 21 and no longer pushes the pressure limiting valve, thus causing the pressure limiting valve to fall back to the sealing position. Compared with the ballpoint pen-style press structure in the background art, the above-mentioned press component has lower processing precision requirements, is easier to design, and is more convenient to operate. During the movement of the button 21, the limiting protrusion 22 and the fixed seat 11 or the moving part 12 form a line and surface sliding fit, which can effectively reduce the probability of jamming and improve the user experience.

[0030] It should be noted that in the above-mentioned “limiting structure 10 includes a fixed seat 11 and a movable member 12 movably disposed below the fixed seat 11”, “below” means that when the pressing component is disposed on the cover, the movable member 12 is located below the fixed seat 11. When the pressing component is disposed on the side wall of the cooking appliance, “below” also includes the movable member 12 being located on the left or right side of the fixed seat 11.

[0031] It should also be noted that when the user presses button 21 from the initial position to the locked position, the limiting protrusion 22 will quickly spring back after disengaging from the first mounting hole 111. This process provides tactile feedback to the user, letting them know that button 21 has moved to the locked position. Correspondingly, when the user moves button 21 from the locked position to the reset position, the limiting protrusion 22 will quickly spring back after disengaging from the inner hole 121 of the moving part, thus providing the user tactile feedback that button 21 has moved to the reset position.

[0032] In addition, the elastic reset element 23 is a spring, and the elastic coefficient of the spring needs to be greater than the elastic coefficient of the limiting protrusion 22, so that the spring can drive the button 21 from the reset position to the initial position through its own elastic restoring force.

[0033] like Figure 4 , Figure 10 and Figure 11 As shown, in this embodiment, the first mounting hole 111 includes a second guide wall 1111 that gradually slopes inward from top to bottom. In the above structure, during the process of moving the button 21 from the initial position to the locked position, the limiting protrusion 22 needs to pass through the first mounting hole 111 and move between the fixed base 11 and the movable part 12. The second guide wall 1111 provided in the first mounting hole 111 allows the limiting protrusion 22 to move more smoothly when passing through the first mounting hole 111, reducing the probability of the limiting protrusion 22 getting stuck with the fixed base 11, and also improving the user's pressing feel, thereby improving the user's user experience.

[0034] like Figure 6 and Figure 9 As shown, in this embodiment, the inner hole 121 of the movable component also includes a third guide wall 1212 located above the first guide wall 1211. The third guide wall 1212 gradually slopes inward from top to bottom. In the above structure, when the button 21 moves from the locked position to the reset position, it passes through the inner hole 121 of the movable component. The first guide wall 1211 can guide the contraction of the limiting protrusion 22 when the button 21 moves, thereby enabling the button 21 to move more smoothly from the locked position to the reset position, reducing the probability of jamming between the limiting protrusion 22 and the movable component 12, and also improving the user's pressing feel, thereby improving the user experience.

[0035] like Figure 6 and Figure 9 As shown, the angle between the third guide wall 1212 and the horizontal plane is between 15° and 60°.

[0036] Preferably, in this embodiment, the angle between the third guide wall 1212 and the horizontal plane is between 40° and 60°. More preferably, the angle between the third guide wall 1212 and the horizontal plane is between 40° and 55°. In the above structure, the button is easier to press from the locked position to the reset position, thus saving the user effort.

[0037] Of course, such as Figure 14 As shown, in other embodiments, the angle between the third guide wall 1212 and the horizontal plane can also be between 15° and 40°. More preferably, the angle between the third guide wall 1212 and the horizontal plane can also be between 15° and 25°. This arrangement increases the resistance when the button is pressed from the locked position to the reset position, providing tactile feedback to the user that the button is in the locked position. Once pressed further down, the button will move to the reset position and then spring back upward. The above structure also prevents the user from pressing the button directly from the initial position to the reset position, bypassing the intermediate locking position for pressure relief.

[0038] like Figures 5 to 7 as well as Figure 11 As shown, in this embodiment, the fixed base 11 is provided with a conical surface 112 that abuts against the third guide wall 1212. In the above structure, when the button 21 moves to the reset position, after the user releases the button, the button 21 moves back to the initial position under the action of the reset force of the elastic reset member 23. The limiting protrusion 22 can drive the movable member 12 to move upward until the movable member 12 is tightly attached to the fixed base 11. The conical surface 112 on the fixed base 11 can make the movable member 12 fit more tightly with the fixed base 11, so that the limiting protrusion 22 directly enters the first mounting hole 111 after passing through the first guide wall 1211 of the movable member 12, and moves upward back to the initial position from the first mounting hole 111, thereby reducing the probability of the button 21 returning to the locked position during the reset process and improving the stability of the button 21 in realizing the reset function. Figure 14 As shown, in other embodiments, a limiting ring 122 may be provided on the fixed base 11. One end of the elastic reset member 23 abuts against the pressure cap 211 of the button 21, and the other end is sleeved on the limiting ring 122 and abuts against the fixed base 11. The limiting ring 122 is located on the circumferential outer side of the second guide wall 1111, which will not affect the sliding of the limiting protrusion 22 on the second guide wall 1111, and also avoids mutual interference between the elastic reset member 23 and the limiting protrusion 22.

[0039] Specifically, such as Figure 6 and Figure 7As shown, the inner edge of the first guide wall 1211 protrudes inward beyond the inner edge of the first mounting hole 111. This structure allows the limiting protrusion 22 to directly enter the first mounting hole 111 after leaving the inner hole 121 of the movable part during the reset process of the button 21. This further reduces the probability of the limiting protrusion 22 entering the space between the fixed seat 11 and the movable part 12 during the button 21 reset process, thus improving the stability of the button 21 in achieving the reset function.

[0040] like Figure 2 , Figures 8 to 11 As shown, in this embodiment, the fixed base 11 includes a top plate 113 and a side plate 114 disposed in the circumferential direction of the top plate 113. A first mounting hole 111 is disposed on the top plate 113, and the movable member 12 is disposed within the space formed by the top plate 113 and the side plate 114. In the above structure, the top plate 113 and the side plate 114 of the fixed base 11 can enclose an active space, which on the one hand limits the movement of the movable member 12, and on the other hand provides sufficient space for the movable member 12 to move. The above structure is simple, has low processing accuracy requirements, and is easy to manufacture.

[0041] like Figures 5 to 7 as well as Figure 11 As shown, the movable component 12 has a ring-shaped structure. The inner hole of the movable component 12 includes a lower hole section that gradually slopes inward from bottom to top and an upper hole section that gradually slopes inward from top to bottom. The lower hole section forms a first guide wall 1211, and the upper hole section forms a third guide wall 1212. The above structure is simple, easy to process, and the movable component 12 can move flexibly. The movable component 12 is integrally formed, which also facilitates the assembly of the movable component 12 and the fixed base 11.

[0042] like Figure 13 As shown, in other embodiments, the movable component 12 can also be multiple separate components. Specifically, the movable component 12 can include multiple movable blocks spaced apart in the circumferential direction of the first mounting hole 111. The fixed base 11 has multiple upwardly extending guide structures 13. Each movable block is guided by a guide structure 13. The inner sidewall of each movable block includes a lower sidewall that gradually slopes inward from bottom to top and an upper sidewall that gradually slopes inward from top to bottom. The multiple lower sidewalls form a first guide wall 1211, and the multiple upper sidewalls form a third guide wall 1212. Preferably, two movable components 12 can be provided, corresponding to the two protrusions of the limiting protrusion. The structure of the movable component 12 is compact, which can save processing costs.

[0043] like Figure 2As shown, in this embodiment, the pressing assembly further includes a base, a fixed seat 11 disposed on the base, a movable member 12 located between the fixed seat 11 and the base, and an upwardly extending guide structure 13 disposed on the base. The movable member 12 slides in cooperation with the guide structure 13. In the above structure, the guide structure 13 can guide the movement of the movable member 12, improving the operational stability of the pressing assembly.

[0044] like Figure 2 As shown, in this embodiment, the limiting protrusion 22 includes a protruding post that passes through the button 21. An arc-shaped spring piece 222 connected to the protruding post is provided within the button structure 20. In the above structure, the end of the arc-shaped spring piece 222 has a protruding post. When the end of the arc-shaped spring piece 222 moves inward, the protruding post contracts inward. The arc-shaped spring piece 222 can expand outward under its own elastic restoring force, thereby keeping multiple protruding posts in a position protruding beyond the sidewall of the button 21. The above structure is simple, and the limiting protrusion 22 has high flexibility. It should be noted that there can be one or more protruding posts.

[0045] like Figure 15 As shown, in other embodiments, the button structure 20 includes a spring plate 223 disposed on the side wall of the button 21. The first end of the spring plate 223 is connected to the side wall of the button 21, and the second end of the spring plate 223 is a free end that can swing along the radial direction of the button 21. A limiting protrusion 22 is disposed on the spring plate 223. In the above structure, the limiting protrusion 22 and the spring plate 223 can be integrally injection molded with the button 21, which is convenient for processing and saves the steps of assembling the limiting protrusion 22 and the button 21.

[0046] Because the travel distance of button 21 from its initial position to its reset position is relatively long, directly driving the drive lever 60 via button 21 requires a sufficiently large longitudinal movement space at the second end of the drive lever 60, thus occupying the limited space within the cooking appliance. To solve this problem, such as... Figures 3 to 5 As shown, in this embodiment, the button structure 20 further includes an elastic sleeve 24, which is disposed at the bottom end of the button 21. In the above structure, the elastic sleeve 24 is compressible, and the bottom of the elastic sleeve 24 is driven to cooperate with the second end of the drive lever 60. When the button 21 moves downward, the elastic sleeve 24 can also move downward while being compressed. This allows the driving force of the button 21 to be transmitted to the drive lever 60, and also allows the compression of the elastic sleeve 24 to share part of the downward stroke of the button 21, reducing the longitudinal movement space required by the drive lever 60.

[0047] Additionally, it should be noted that the elastic sleeve 24 can form a buffer between the driving end of the button 21 and the driving lever 60, thereby preventing the driving lever 60 from jumping when the button 21 moves, which would cause the pressure relief valve 50 to jump, thus improving the stability of the pressure relief valve 50 driven by the pressing component 70 and the driving lever 60.

[0048] like Figure 2 As shown, in this embodiment, the button 21 includes a pressure cap 211 and a drive rod 212 disposed below the pressure cap 211. A limiting protrusion 22 passes through the drive rod 212, which extends downward through the first mounting hole 111 and the inner hole 121 of the movable part. The bottom end of the drive rod 212 forms a drive end, and the first end of the elastic reset member 23 cooperates with the pressure cap 211. In the above structure, the pressure cap 211 has a large pressing area, which facilitates the user's pressing operation. The elastic sleeve 24 is disposed at the bottom end of the drive rod 212 and drives and cooperates with the second end of the drive lever 60. The above structure is simple and easy to manufacture.

[0049] like Figure 1 As shown, this embodiment also provides a cooking appliance, which includes a pot body, a lid, a venting assembly, and a pressing assembly 70. The lid covers the pot body; the venting assembly is disposed on the lid and is the aforementioned venting assembly. The pressing assembly 70 is the aforementioned pressing assembly. In the above structure, the pressing assembly 70 has the advantages of low processing precision requirements, simple design, and good user experience; therefore, the cooking appliance having it also possesses these advantages.

[0050] Specifically, the drive lever 60 is pivotally mounted on the cover 30, with its first end located below the pressure relief valve 50, and its second end engaging with the button 21. When the button 21 is in its initial position (e.g....), Figure 3 As shown), the limiting protrusion 22 is located above the fixed base 11, and the driving end of the button 21 is not engaged with the driving lever 60. At this time, the cooking appliance is in a non-working state or a pressure cooking state. When pressure relief is required, the user can press the button 21 downwards to move the button 21 from the initial position to the locked position. At this time, the limiting protrusion 22 is located between the fixed base 11 and the movable part 12 (as shown). Figure 4As shown, the fixed base 11 can stop the limiting protrusion 22, keeping the button 21 in the locked position. The button 21 can cause the second end of the lever to move downward, thereby causing the first end of the lever to move upward and lift the pressure relief valve 50, realizing the pressure relief of the cooking appliance. After the pressure relief is completed, the user presses the button 21 again, causing the button 21 to rise from the locked position to the initial position under the action of the reset force of the elastic reset member 23. At this time, the second end of the drive lever 60 is lifted upward with the button 21, and the first end of the drive lever 60 falls down, losing its pushing effect on the pressure relief valve 50. The pressure relief valve 50 can fall back to the sealing position under its own gravity.

[0051] like Figure 1 and Figure 2 As shown, in this embodiment, the cover 30 includes a cover body 31 and a handle 32 disposed on the cover body 31. A through hole 3211 is provided on the handle base 321, and the driving end of the button 21 passes through the through hole 3211. The handle 32 includes a handle base 321 and a handle cover 322, which together form an installation space 3. The limiting structure 10 and the button structure 20 are disposed within the installation space 3. A receiving recess 3221 is provided on the handle cover 322. The pressure cap 211 of the button 21 of the pressing assembly 70 is located within the receiving recess 3221, and the elastic reset member 23 of the pressing assembly 70 is located between the pressure cap 211 and the bottom wall of the receiving recess 3221. In the above structure, the pressing assembly 70 is disposed within the handle 32, which can fully utilize the installation space 3 within the handle, making the surface of the cover 30 neater and more aesthetically pleasing. Furthermore, the top of the elastic reset member 23 abuts against the pressure cap 211, and the bottom of the elastic reset member 23 abuts against the bottom wall of the receiving recess 3221. The bottom wall of the receiving recess 3221 can provide a force application point for the elastic reset member 23. In addition, the bottom wall of the receiving recess 3221 can also separate the elastic reset member 23 from the limiting protrusion 22, preventing the elastic reset member 23 and the limiting protrusion 22 from interfering with each other during button pressing.

[0052] It should be noted that, as Figure 7 and Figure 12 As shown, the edge of the pressure cap 211 of button 21 has a downwardly extending hook 213, and the receiving recess 3221 has a locking hole. The hook 213 passes through the locking hole and engages with the receiving recess 3221 for limiting. The above structure can limit the position of button 21.

[0053] like Figure 1As shown, in this embodiment, the cover body 31 includes a front cover 311 and an inner cover 312 disposed below the front cover 311. A handle 32 is disposed on the front cover 311. An exhaust pipe 40 passes through the front cover 311 and the inner cover 312. A drive lever 60 is pivotally disposed between the front cover 311 and the inner cover 312. In the above structure, the drive lever 60 is located between the front cover 311 and the inner cover 312. The front cover 311 is provided with a clearance hole to avoid the first end of the drive lever 60. The first end of the drive lever 60 passes through the clearance hole and extends below the pressure relief valve 50. The above structure makes the internal structural layout of the cover body 31 neat and reasonable, which is conducive to the effective cooperation of the pressure relief valve 50, the drive lever 60, and the pressing assembly 70.

[0054] In this embodiment, the cooking appliances are products such as electric pressure cookers, rice cookers, soy milk makers, food processors, slow cookers, stir-fry machines, and multi-functional cookers.

[0055] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An exhaust assembly, characterized in that, The venting assembly is disposed on the lid of the cooking appliance, and the venting assembly includes: An exhaust pipe (40) and a pressure relief valve (50) are provided, wherein the exhaust pipe (40) passes through the cover and the pressure relief valve (50) is located at the top of the exhaust pipe (40); A drive lever (60) is movably disposed within the cover body, and the first end of the drive lever (60) engages with the pressure relief valve (50) in a driving cooperation. A pressing component (70) is disposed on the cover body. The driving end of the pressing component (70) is driven to cooperate with the second end of the driving lever (60). The pressing component (70) includes: The limiting structure (10) includes a fixed base (11) and a movable member (12) movably disposed within the fixed base (11). The fixed base (11) is provided with a first mounting hole (111). The movable member (12) is disposed on the circumferential outer side of the first mounting hole (111). The movable member (12) is provided with a first guide wall (1211) that gradually slopes inward from bottom to top. The inner edge of the first guide wall (1211) protrudes inward from the inner edge of the first mounting hole (111). The button structure (20) includes a button (21), an elastic reset member (23), and a limiting protrusion (22) disposed on the side wall of the button (21). The limiting protrusion (22) is provided in a radial direction of the button structure (20). The button (21) extends downward through the first mounting hole (111). The bottom end of the button (21) forms a driving end. The button (21) is movably disposed and has an initial position, a locked position, and a reset position. The elastic reset member (23) applies an upward resetting force to the button (21). When the button (21) is in the initial position, the limiting protrusion (22) is above the fixed base (11); when the button (21) moves from the initial position to the locked position, the limiting protrusion (22) retracts inward and passes through the first mounting hole (111) and engages with the fixed base (11); when the button (21) is in the reset position, the limiting protrusion (22) is below the movable member (12); when the button (21) moves from the reset position to the initial position, the button (21) moves upward under the reset force of the elastic reset member (23), so that the limiting protrusion (22) retracts inward under the action of the first guide wall (1211) of the movable member (12) and passes through the first mounting hole (111).

2. The exhaust assembly according to claim 1, characterized in that, The first mounting hole (111) includes a second guide wall (1111) that gradually slopes inward from top to bottom.

3. The exhaust assembly according to claim 1, characterized in that, The movable component (12) also includes a third guide wall (1212) located above the first guide wall (1211), the third guide wall (1212) gradually tilting inward in the direction from top to bottom.

4. The exhaust assembly according to claim 3, characterized in that, The angle between the third guide wall (1212) and the horizontal plane is between 15° and 60°.

5. The exhaust assembly according to claim 3, characterized in that, The fixed base (11) is provided with a conical surface (112) that abuts against the third guide wall (1212).

6. The exhaust assembly according to any one of claims 1 to 5, characterized in that, The fixed base (11) includes a top plate (113) and a side plate (114) disposed in the circumferential direction of the top plate (113). The first mounting hole (111) is disposed on the top plate (113), and the movable part (12) is disposed in the space formed by the top plate (113) and the side plate (114).

7. The exhaust assembly according to claim 3, characterized in that, The movable part (12) is a ring structure. The inner hole of the movable part (12) includes a lower hole section that gradually slopes inward from bottom to top and an upper hole section that gradually slopes inward from top to bottom. The lower hole section forms the first guide wall (1211), and the upper hole section forms the third guide wall (1212).

8. The exhaust assembly according to claim 3, characterized in that, The movable component (12) includes a plurality of movable blocks spaced apart in the circumferential direction of the first mounting hole (111). The fixed base (11) is provided with a plurality of upwardly extending guide structures (13). Each movable block is guided by one of the guide structures (13). The inner sidewall of each movable block includes a lower sidewall that gradually slopes inward from bottom to top and an upper sidewall that gradually slopes inward from top to bottom. The plurality of lower sidewalls form the first guide wall (1211), and the plurality of upper sidewalls form the third guide wall (1212).

9. The exhaust assembly according to claim 7, characterized in that, The pressing assembly (70) also includes a base, the fixed seat (11) is disposed on the base, the movable part (12) is located between the fixed seat (11) and the base, and the base is provided with an upwardly extending guide structure (13), the movable part (12) and the guide structure (13) are slidably engaged in the guide structure.

10. The exhaust assembly according to any one of claims 1 to 5, characterized in that, The limiting protrusion (22) includes a protrusion (221) passing through the button (21), and the button structure (20) is provided with an arc-shaped spring piece (222) connected to the protrusion (221).

11. The exhaust assembly according to any one of claims 1 to 5, characterized in that, The button structure (20) includes a spring plate (223) disposed on the side wall of the button (21). The first end of the spring plate (223) is connected to the side wall of the button (21). The second end of the spring plate (223) is a free end and can swing along the radial direction of the button (21). The limiting protrusion (22) is disposed on the spring plate (223).

12. The exhaust assembly according to any one of claims 1 to 5, characterized in that, The button structure (20) also includes an elastic sleeve (24), which is disposed at the bottom end of the button (21).

13. The exhaust assembly according to any one of claims 1 to 5, characterized in that, The button (21) includes a pressure cap (211) and a drive rod (212) disposed below the pressure cap (211). The limiting protrusion (22) passes through the drive rod (212). The drive rod (212) passes downward through the first mounting hole (111). The bottom end of the drive rod (212) forms a drive end. The first end of the elastic reset member (23) cooperates with the pressure cap (211).

14. A cooking utensil, characterized in that, include: pot body; A lid (30) is placed on the pot body; An exhaust assembly is disposed on the cover (30), and the exhaust assembly is the exhaust assembly according to any one of claims 1 to 13.

15. The cooking utensil according to claim 14, characterized in that, The cover (30) includes a cover body (31) and a handle (32) disposed on the cover body (31). The handle (32) includes a handle seat (321) and a handle cover (322). The handle seat (321) is provided with a through hole (3211). The driving end of the button (21) passes through the through hole (3211). The handle seat (321) and the handle cover (322) form an installation space (3). The limiting structure (10) is disposed in the installation space (3). The handle cover (322) is provided with a receiving recess (3221). The button (21) of the pressing component (70) is disposed in the receiving recess (3221). The elastic reset component (23) of the pressing component (70) is located between the button (21) and the bottom wall of the receiving recess (3221).

16. The cooking utensil according to claim 15, characterized in that, The cover body (31) includes a face cover (311) and an inner cover (312) disposed below the face cover (311). The handle (32) is disposed on the face cover (311). The exhaust pipe (40) passes through the face cover (311) and the inner cover (312). The drive lever (60) is pivotally disposed between the face cover (311) and the inner cover (312).

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