Cup lid assembly and food processor

Abstract

The application provides a cup cover assembly and a food processor. The cup cover assembly comprises a cup cover provided with an exhaust opening, and an exhaust assembly comprising a fixed cover and a movable cover. The fixed cover is installed at the exhaust opening, and the movable cover is installed on the fixed cover and can be switched between a first position and a second position by moving up and down. The movable cover comprises a movable cavity, a first bubble breaking hole in communication with the movable cavity, and an exhaust hole in communication with the outside. In this way, spilling can be prevented.

Description

Technical Field

[0001] This application relates to the field of food processing, and more particularly to a cup lid assembly and a food processor. Background Technology

[0002] As people's living standards continue to improve, many different types of food processors have appeared on the market. The functions of food processors mainly include, but are not limited to, making soy milk, juicing, mincing meat, making coffee, and / or preparing face masks. Food processors can include soy milk makers, blenders, or high-speed blenders—machines that pulverize and mix food. To make the soy milk and other food slurries produced by food processors more fragrant and thick, it is usually necessary to increase the heating power or extend the heating time. Increasing the heating power can cause the slurry to overflow, while extending the heating time increases the user's waiting time, resulting in a poor user experience. Summary of the Invention

[0003] The purpose of this application is to provide a cup lid assembly and a blender that can produce a rich and creamy liquid without increasing the time required for blending, and the liquid is less likely to overflow during the operation of the blender.

[0004] One aspect of this application provides a cup lid assembly. The cup lid assembly includes: a cup lid having a vent opening; and a venting assembly including a fixed cover and a movable cover, the fixed cover being installed at the vent opening, the movable cover being installed at the fixed cover, and the movable cover being able to switch between a first position and a second position by moving up and down, the movable cover including a movable cavity, a first bubble-breaking hole communicating with the movable cavity, and a vent opening communicating with the outside. During operation, the steam generated inside the blending jar can escape through the first bubble-breaking vent and the vent, thus achieving venting. Simultaneously, as the blender operates, the pressure inside the blending jar gradually increases. When the upward pressure on the movable lid exceeds its weight, the lid moves upward, effectively increasing the volume of steam inside the jar and thus reducing the pressure. Furthermore, the upward movement of the movable lid elevates the vent, preventing the liquid or foam inside the jar from overflowing, thus preventing spillage. Additionally, the liquid and foam entering the movable chamber through the first bubble-breaking vent also have a bubble-breaking effect, resulting in a better-tasting liquid and improved spill prevention. Therefore, with improved spill prevention, heating power can be increased without extending heating time to obtain a rich and flavorful liquid. During operation, the movable lid can move up and down to visually alert the user to high-heat cooking or abnormal pressure, enhancing the safety of using the blender.

[0005] Furthermore, the movable cover includes a movable cover body and a movable bottom cover disposed at the bottom end of the movable cover body, the movable cavity is disposed in the movable cover body, and the first bubble-breaking hole is disposed in the movable bottom cover. Thus, by molding the movable cover body and the movable bottom cover separately and then assembling them together, molding is easier and disassembly and cleaning are more convenient.

[0006] Furthermore, the movable cover body is provided with a swivel buckle at its bottom end, and the movable bottom cover is provided with a swivel buckle groove that mates with the swivel buckle. Through the engagement of the swivel buckle and the swivel buckle groove, the movable cover body and the movable bottom cover can be easily and quickly assembled or disassembled.

[0007] Furthermore, the movable bottom cover has a radially outwardly protruding guide protrusion, and the inner side of the fixed cover has a limiting groove that mates with the guide protrusion. The screw-on groove is located inside the guide protrusion. Through the cooperation of the guide protrusion and the limiting groove, the movable cover can be guided as it moves upward, preventing it from wobbling and ensuring smooth upward movement. This results in a more stable and reliable spill prevention effect.

[0008] Furthermore, the movable cover includes a vent cover disposed at the top of the movable cover body, and the vent hole is disposed on the vent cover. Thus, by molding the movable cover body and the vent cover separately and then assembling them together, the molding process becomes easier.

[0009] Furthermore, the top of the movable cover body is also provided with a bubble-breaking wall, which is located below the vent cover, and the bubble-breaking wall has a second bubble-breaking hole. In this way, the slurry foam undergoes secondary bubble-breaking, resulting in a better bubble-breaking effect, better overflow prevention, and a better taste of the slurry.

[0010] Furthermore, the exhaust cover includes a side wall and a top wall. The side wall is provided with a first locking part, and the movable cover body is provided with a second locking part that cooperates with the first locking part. Thus, through the cooperation of the first and second locking parts, the exhaust cover and the movable cover body can be easily and quickly installed or removed.

[0011] Furthermore, the vent is located on the side wall of the lid, above the first and second screw-on portions. By positioning the vent above the first and second screw-on portions, steam inside the stirring cup can be smoothly discharged through the vent.

[0012] Furthermore, the fixed cover includes a fixed cavity, and the movable cover includes a pressure relief channel; when the movable cover is in the first position, the fixed cover closes the pressure relief channel; when the movable cover is in the second position, the pressure relief channel connects the fixed cavity to the outside. Thus, during the operation of the food processor, as the movable cover moves between the first and second positions, the pressure relief channel can release pressure from the cavity of the blending cup, thereby achieving a better spill prevention effect.

[0013] Furthermore, the fixing cover includes a fixing cover body and a fixing bottom cover disposed at the bottom end of the fixing cover body, the fixing cavity is disposed in the fixing cover body, and the fixing bottom cover is provided with a third bubble-breaking hole. Thus, the bubble-breaking effect is good.

[0014] Furthermore, the pressure relief channel is recessed inward from the outside of the movable cover, and is located at the bottom end of the movable cover. This simplifies the manufacturing of the movable cover.

[0015] Furthermore, the projected area of ​​the pressure relief channel along the vertical direction is S1, the projected area of ​​the movable cover along the vertical direction is S2, M is the total mass of the movable cover, and g is the acceleration due to gravity. S1, S2, M, and g satisfy the following relationship: 0 ≤ S1 ≤ S2 - M × g / 2 kPa. Thus, after the pressure relief channel is depressurized, the movable cover can fall from the second position to the first position.

[0016] Furthermore, the cup lid includes a top wall and side walls, which together define a cup lid cavity. The sum of the volumes of the fixed cavity and the movable cavity is greater than or equal to half the volume of the cup lid cavity, and the sum of the volumes of the fixed cavity and the movable cavity is less than the volume of the cup lid cavity. Thus, on the one hand, the movable lid has sufficient weight to fall from the second position to the first position, and the fixed and movable lids have more space to break up the slurry foam, resulting in a better foam-breaking effect; on the other hand, the cup lid assembly has a more aesthetically pleasing appearance, providing a better user experience.

[0017] Furthermore, the fixing cap is installed at the vent opening of the cup lid by a screw-on method. A sealing ring is provided on the outside of the fixing cap, and the sealing ring forms a seal between the fixing cap and the cup lid. In this way, venting and pressure loss are prevented between the fixing cap and the cup lid.

[0018] Furthermore, the cup lid assembly is used to cover a container, and changes in air pressure within the container can cause the movable lid to switch between a first position and a second position.

[0019] Another aspect of this application provides a food processor. The food processor includes: a blending cup assembly; and a lid assembly as described above, which covers the blending cup assembly. During operation, steam generated inside the blending cup can be discharged through a first bubble-breaking hole and a vent hole, thus achieving venting. Simultaneously, during operation, the air pressure inside the blending cup gradually increases. When the upward pressure on the movable lid exceeds its weight, the movable lid moves upward, effectively increasing the volume of steam inside the blending cup, thus reducing the air pressure. Furthermore, because the movable lid moves upward, the vent hole is positioned higher, making it less likely for liquid or foam inside the blending cup to overflow, thus preventing overflow. Additionally, the liquid or foam entering the movable cavity through the first bubble-breaking hole also has a bubble-breaking effect, further enhancing the overflow prevention effect. Attached Figure Description

[0020] Figure 1 The image shown is a perspective view of one embodiment of the food processor of this application;

[0021] Figure 2 As shown Figure 1 The exploded view of the food processor shown;

[0022] Figure 3 As shown Figure 2 An exploded perspective view of the fixed cover shown;

[0023] Figure 4 As shown Figure 2 An exploded perspective view of the movable cover shown;

[0024] Figure 5 As shown Figure 1 The cross-sectional view of the cup lid assembly shown indicates that the movable lid is in the first position;

[0025] Figure 6 As shown Figure 1 The cross-sectional view of the cup lid assembly shown shows the movable lid in the second position. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The use of terms such as “a” or “one” in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. The terms “comprising” or “including” and similar expressions mean that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The terms “connected” or “linked” and similar expressions are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0028] The food processor 100 described in this application can be used to make soy milk, juice, etc. Please refer to [link / reference]. Figures 1 to 6 The food processor 100 includes a container and a lid assembly 60, the lid assembly 60 being used to cover the container.

[0029] The cup lid assembly 60 includes a cup lid 10 and a venting assembly 20. The cup lid 10 has a venting opening 11, which is located at the center of the cup lid 10, but is not limited thereto. The venting assembly 20 includes a fixed cover 21 and a movable cover 22. The fixed cover 21 is installed at the venting opening 11, and the movable cover 22 is installed on the fixed cover 21. The movable cover 22 can switch between a first position and a second position by moving up and down. The movable cover 22 includes a movable cavity 221, a first bubble-breaking hole 222 communicating with the movable cavity 221, and a venting hole 223 communicating with the outside.

[0030] In one embodiment, during operation of the food processor 100, pressure changes within the container can cause the movable lid 22 to switch between a first position and a second position. In the illustrated embodiment, the container is a blending cup assembly 50. In other embodiments, the movable lid 22 can also be switched between the first and second positions manually or electrically.

[0031] In one embodiment, the food processor 100 is a direct-drive food processor, with the motor located at the bottom of the blending cup assembly 50. In another embodiment, the food processor 100 further includes a main unit, to which the blending cup assembly 50 is detachably mounted, and the main unit includes a motor. The blending cup assembly 50 includes a blending cup and a blade assembly located at the bottom of the blending cup. The blending cup is used to hold ingredients, and the motor can drive the blade assembly to blend and pulverize the ingredients within the blending cup.

[0032] The fixed cover 21 is installed at the vent opening 11 of the cup lid 10 by a screw-on method. A sealing ring 29 is provided on the outer side of the fixed cover 21, forming a seal between the fixed cover 21 and the cup lid 10. This prevents venting and pressure loss between the fixed cover 21 and the cup lid 10. Specifically, the upper end of the fixed cover 21 has a mounting groove 215, and the sealing ring 29 is disposed within the mounting groove 215. The movable cover 22 is clearance-fitted with the fixed cover 21. Preferably, the gap between the movable cover 22 and the fixed cover 21 is no more than 1 mm, thus reducing the friction experienced by the movable cover 22 during its up-and-down movement and making it more stable and reliable.

[0033] During the operation of the food processor 100, the steam generated inside the mixing cup can be discharged through the first bubble-breaking hole 222 and the vent hole 223, thus achieving venting. Simultaneously, as the food processor 100 operates, the air pressure inside the mixing cup gradually increases. When the upward pressure on the movable lid 22 exceeds its weight, the movable lid 22 moves upward, effectively increasing the volume of steam inside the mixing cup, thus reducing the air pressure. Furthermore, because the movable lid 22 moves upward, the vent hole 223 is positioned higher, making it less likely for the liquid or foam inside the mixing cup to overflow, thus preventing overflow. Additionally, as the liquid and foam enter the movable cavity 221 through the first bubble-breaking hole 222, they also have a bubble-breaking effect, resulting in a better-tasting liquid and improved overflow prevention. Therefore, with improved overflow prevention, the heating power can be increased without extending the heating time to obtain a rich and flavorful liquid. In addition, during the operation of the food processor 100, when encountering high heat cooking or abnormal pressure, the movable lid 22 can move up and down, thereby visually alerting the user and making the use of the food processor 100 safer.

[0034] In one embodiment, the movable cover 22 includes a movable cover body 224 and a movable bottom cover 225 disposed at the bottom end of the movable cover body 224. The movable cavity 221 is disposed on the movable cover body 224, and the first bubble-breaking hole 222 is disposed on the movable bottom cover 225. Thus, the movable cover body 224 and the movable bottom cover 225 are formed separately and then assembled together, making the forming process easier. The movable cover body 224 and the movable bottom cover 225 can be fixed together by means of screws, clips, or other methods. In another embodiment, the movable cover body 224 and the movable bottom cover 225 are integrally formed.

[0035] In the illustrated embodiment, the movable cover body 224 has a snap fastener 2242 at its bottom end, and the movable bottom cover 225 has a snap fastener groove 2251 that mates with the snap fastener 2242. The snap fastener 2242 and the snap fastener groove 2251 allow for convenient and quick assembly or disassembly of the movable cover body 224 and the movable bottom cover 225. The snap fastener 2242 protrudes outward from the bottom end of the movable cover body 224.

[0036] In the illustrated embodiment, the movable bottom cover 225 has a radially outwardly protruding guide protrusion 2252, and the inner side of the fixed cover 21 has a limiting groove 219 that mates with the guide protrusion 2252. The screw-on groove 2251 is located inside the guide protrusion 2252. The guide protrusion 2252 and the limiting groove 219 work together to guide the movable cover 22 as it moves upward, preventing it from wobbling and ensuring smooth upward movement. This results in a more stable and reliable spill prevention effect. Furthermore, by placing the screw-on groove 2251 within the guide protrusion 2252, the overall structure of the movable bottom cover 225 is simpler and easier to mold.

[0037] In the illustrated embodiment, the movable cover 22 includes a vent cover 226 disposed at the top of the movable cover body 224, and a vent hole 223 disposed on the vent cover 226. Thus, the movable cover body 224 and the vent cover 226 are formed separately and then assembled together, making the forming process easier. The vent cover 226 and the movable cover body 224 are installed together by means of screws, threads, clips, bolts, etc. In another embodiment, the vent cover 226 and the movable cover body 224 are integrally formed.

[0038] The top of the movable cover body 224 is also provided with a bubble-breaking wall 227, which is located below the vent cover 226. The bubble-breaking wall 227 has a second bubble-breaking hole 228. The slurry foam in the mixing cup first enters the movable cavity 221 through the first bubble-breaking hole 222, and then enters the vent cover 226 from the movable cavity 221 through the second bubble-breaking hole 228. In this way, the slurry foam undergoes two bubble-breaking processes, resulting in better bubble-breaking effect, better spill prevention, and a better taste of the slurry. By setting a double bubble-breaking structure with the first bubble-breaking hole 222 and the second bubble-breaking hole 228, the noise is continuously weakened during transmission, thus greatly reducing the noise transmitted outside the mixing cup.

[0039] In one embodiment, the exhaust cover 226 includes a cover side wall 2261 and a cover top wall 2262. The cover side wall 2261 is provided with a first locking portion 2263, and the movable cover body 224 is provided with a second locking portion 2241 that cooperates with the first locking portion 2263. Thus, by cooperating with the first locking portion 2263 and the second locking portion 2241, the exhaust cover 226 and the movable cover body 224 can be installed or removed conveniently and quickly.

[0040] In the illustrated embodiment, the vent 223 is disposed on the side wall 2261 of the lid, and the vent 223 is located above the first screw fastener 2263 and the second screw fastener 2241. By disposing the vent 223 above the first screw fastener 2263 and the second screw fastener 2241, steam in the stirring cup can be smoothly discharged through the vent 223.

[0041] The fixed cover 21 includes a fixed cavity 211, and the movable cover 22 includes a pressure relief channel 229. When the movable cover 22 is in a first position, the fixed cover 21 closes the pressure relief channel 229. When the movable cover 22 is in a second position, the pressure relief channel 229 connects the fixed cavity 211 to the outside. The fixed cavity 211 is connected to the cavity of the stirring cup.

[0042] When the food processor 100 first starts working, the air pressure inside the blending cup is roughly the same as the outside atmospheric pressure, and the movable lid 22 is in the first position. As the temperature of the food mixture inside the blending cup gradually rises, the air pressure inside the blending cup also increases. When the air pressure inside the blending cup increases to a certain level, the movable lid 22 begins to move upwards until it reaches the second position. At this point, the pressure relief channel 229 connects the fixed cavity 211 to the outside, allowing the pressure relief channel 229 to release pressure from the blending cup cavity and the fixed cavity 211, thus lowering the air pressure. The movable lid 22 then moves downwards until it reaches the first position. Therefore, during the operation of the food processor 100, the movable lid 22 moves between the first and second positions, and the pressure relief channel 229 accordingly releases pressure from the blending cup cavity, thereby achieving a better spill prevention effect.

[0043] The fixed cover 21 includes a fixed cover body 212 and a fixed bottom cover 213 disposed at the bottom end of the fixed cover body 212. The fixed cavity 211 is disposed on the fixed cover body 212, and the fixed bottom cover 213 is provided with a third bubble-breaking hole 214. By providing the third bubble-breaking hole 214 in the fixed bottom cover 213, the slurry foam generated in the stirring cup first enters the fixed cavity 211 through the third bubble-breaking hole 214, and then enters the movable cavity 221 through the first bubble-breaking hole 222. Thus, the bubble-breaking effect is good. By setting a triple bubble-breaking structure, the noise is continuously weakened during transmission, thereby greatly reducing the noise transmitted outside the stirring cup. The fixed bottom cover 213 can be installed at the bottom end of the fixed cover body 212 by means of screwing, snapping, threading, or other structures.

[0044] The fixed bottom cover 213 can limit the movable cover 22, confining the movable cover 22 to a first position. The top of the fixed cover body 212 is also provided with a limiting part 216, which limits the movable cover 22, confining the movable cover 22 to a second position, preventing the movable cover 22 from detaching from the fixed cover 21 due to excessive air pressure inside the mixing cup.

[0045] In one embodiment, the pressure relief channel 229 is recessed inward from the outer side of the movable cover 22, and the pressure relief channel 229 is located at the bottom end of the movable cover 22. This simplifies the manufacturing of the movable cover 22. In the illustrated embodiment, the outer side of the movable cover 22 is recessed inward to form two pressure relief channels 229. In other embodiments, the outer side of the movable cover 22 is recessed inward to form one, three, four, five, or six pressure relief channels 229, and the embodiment is not limited to these.

[0046] The vertical projected area of ​​the pressure relief channel 229 is S1, and the vertical projected area of ​​the movable cover 22 is S2. M is the total mass of the movable cover 22, g is the acceleration due to gravity, and the air pressure inside the stirring cup is P. After the pressure relief channel 229 is depressurized, in order for the movable cover 22 to fall from the second position to the first position, the following condition must be met: P(S2-S1)-M×g≤0. Under normal circumstances, 0≤P≤2kPa. From this, it can be deduced that S1, S2, M, and g satisfy the following relationship: 0≤S1≤S2-M×g / 2kPa. That is, when S1, S2, M, and g satisfy the following relationship: 0≤S1≤S2-M×g / 2kPa, after the pressure relief channel 229 is depressurized, the movable cover 22 can fall from the second position to the first position. The cross-section of the movable cover 22 can be circular or square, and is not limited to these.

[0047] The cup lid 10 includes a top wall 19 and a side wall 18, which together define a cup lid cavity 17. The sum of the volume of the fixed cavity 211 and the volume of the movable cavity 221 is greater than or equal to half the volume of the cup lid cavity 17, and the sum of the volumes of the fixed cavity 211 and the movable cavity 221 is less than the volume of the cup lid cavity 17. Thus, on the one hand, the movable lid 22 has sufficient weight to fall from the second position to the first position, and the fixed lid 21 and the movable lid have more space to break up the slurry foam, resulting in a better foam-breaking effect; on the other hand, the cup lid assembly 60 has a more aesthetically pleasing appearance, providing a better user experience.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A cup lid assembly, characterized in that, It includes: The cup lid (10) is provided with a vent (11); and The exhaust assembly (20) includes a fixed cover (21) and a movable cover (22). The fixed cover (21) is installed at the exhaust opening (11), and the movable cover (22) is installed on the fixed cover (21). The movable cover (22) can switch between a first position and a second position by moving up and down. The movable cover (22) includes a movable cavity (221), a first bubble-breaking hole (222) communicating with the movable cavity (221), and an exhaust hole (223) communicating with the outside. The movable cover (22) includes a movable cover body (224) and a movable bottom cover (225) disposed at the bottom end of the movable cover body (224). The movable cavity (221) is disposed on the movable cover body (224), and the first bubble breaking hole (222) is disposed on the movable bottom cover (225). The movable cover (22) includes an exhaust cover (226) disposed at the top of the movable cover body (224), and the exhaust hole (223) is disposed on the exhaust cover (226). The top of the movable cover body (224) is also provided with a bubble-breaking wall (227), which is located below the exhaust cover (226). The bubble-breaking wall (227) is provided with a second bubble-breaking hole (228).

2. The cup lid assembly as described in claim 1, characterized in that: The bottom end of the movable cover body (224) is provided with a swivel (2242), and the movable bottom cover (225) is provided with a swivel groove (2251) that cooperates with the swivel (2242).

3. The cup lid assembly as described in claim 2, characterized in that: The movable bottom cover (225) is provided with a radially outward protruding guide protrusion (2252), and the inner side of the fixed cover (21) is provided with a limiting groove (219) that cooperates with the guide protrusion (2252). The screw groove (2251) is provided on the inner side of the guide protrusion (2252).

4. The cup lid assembly as described in claim 1, characterized in that: The exhaust cover (226) includes a cover side wall (2261) and a cover top wall (2262). The cover side wall (2261) is provided with a first screw fastening part (2263), and the movable cover body (224) is provided with a second screw fastening part (2241) that cooperates with the first screw fastening part (2263).

5. The cup lid assembly as described in claim 4, characterized in that: The vent (223) is provided on the side wall (2261) of the cover, and the vent (223) is located above the first screw fastener (2263) and the second screw fastener (2241).

6. The cup lid assembly as claimed in claim 1, characterized in that: The fixed cover (21) includes a fixed cavity (211), and the movable cover (22) includes a pressure relief channel (229). When the movable cover (22) is in the first position, the fixed cover (21) closes the pressure relief channel (229); When the movable cover (22) is in the second position, the pressure relief channel (229) connects the fixed cavity (211) to the outside.

7. The cup lid assembly as described in claim 6, characterized in that: The fixing cover (21) includes a fixing cover body (212) and a fixing bottom cover (213) disposed at the bottom end of the fixing cover body (212). The fixing cavity (211) is disposed on the fixing cover body (212), and the fixing bottom cover (213) is provided with a third bubble-breaking hole (214).

8. The cup lid assembly as described in claim 6, characterized in that: The pressure relief channel (229) is recessed from the outside of the movable cover (22) and is located at the bottom of the movable cover (22).

9. The cup lid assembly as claimed in claim 8, characterized in that: The projected area of ​​the pressure relief channel (229) in the vertical direction is: The projected area of ​​the movable cover (22) along the vertical direction is M is the total mass of the movable cover (22), and g is the acceleration due to gravity. , M and g satisfy the following relationship, 0 ≤ ≤ -M×g / 2kPa.

10. The cup lid assembly as claimed in claim 6, characterized in that: The cup lid (10) includes a top wall (19) and a side wall (18), which together define a cup lid cavity (17). The sum of the volume of the fixed cavity (211) and the volume of the movable cavity (221) is greater than or equal to half the volume of the cup lid cavity (17), and the sum of the volume of the fixed cavity (211) and the volume of the movable cavity (221) is less than the volume of the cup lid cavity (17).

11. The cup lid assembly as claimed in claim 1, characterized in that: The fixed cover (21) is installed at the vent opening (11) of the cup lid (10) by means of a screw fastener. A sealing ring (29) is provided on the outside of the fixed cover (21), and the sealing ring (29) forms a seal between the fixed cover (21) and the cup lid (10).

12. The cup lid assembly as claimed in claim 1, characterized in that: The cup lid assembly is used to cover a container, and changes in air pressure inside the container can cause the movable lid (22) to switch between a first position and a second position.

13. A food processor, characterized in that, It includes: Mixing cup assembly (50); and The cup lid assembly (60) as described in any one of claims 1 to 12 covers the stirring cup assembly (50).

Images