CN111839276B

CN111839276B - Air exhaust and pressure relief assembly, vacuum head assembly, cup cover assembly and food processor

Info

Publication number: CN111839276B
Application number: CN201910395168.XA
Authority: CN
Inventors: 廖平; 阮浩翔
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-04-28
Filing date: 2019-05-13
Publication date: 2022-04-26
Anticipated expiration: 2039-05-13
Also published as: CN210697315U; CN111839276A; CN210697316U

Abstract

The invention provides an air exhaust and pressure relief assembly, a vacuum head assembly, a cup cover assembly and a food processor. The utility model provides an air exhaust and pressure release subassembly, it can carry out evacuation and pressure release to the cup, air exhaust and pressure release subassembly include apron, extraction cover and air exhaust device, the apron include with inlet port and the air vent of space intercommunication in the cup, the extraction cover include with the air inlet of inlet port intercommunication and with the gas outlet of air vent intercommunication, air exhaust device with the gas outlet intercommunication, during the evacuation, air exhaust device is the air process in the cup the air vent and the gas outlet is taken out, during the pressure release, the external air through can by the air inlet and the inlet port gets into the cup, simple structure.

Description

Air exhaust and pressure relief assembly, vacuum head assembly, cup cover assembly and food processor

Technical Field

The invention relates to the field of small household appliances, in particular to an air exhaust and pressure relief assembly, a vacuum head assembly, a cup cover assembly and a food processor.

Background

With the increasing living standard of people, many different types of food processors appear on the market. The functions of the food processor mainly include, but are not limited to, functions of making soybean milk, squeezing fruit juice, making rice paste, mincing meat, shaving ice, making coffee and/or blending facial masks and the like. The food processor can comprise a soybean milk machine, a stirrer or a wall breaking food processor and other machines for crushing and stirring food. Relevant cooking machine can carry out the evacuation to the space in the stirring cup subassembly, keeps fresh and anti-oxidant to eating the material. The air exhaust and pressure relief assembly structure of the related food processor is complex.

Disclosure of Invention

The invention provides an air exhaust and pressure relief assembly, a vacuum head assembly, a cup cover assembly and a food processor with simple structures.

One aspect of the present invention provides an air extraction and pressure release assembly, which can perform vacuum extraction and pressure release on a cup body, wherein the air extraction and pressure release assembly comprises an air extraction cover, an air extraction device, and an air inlet and an air vent which are communicated with a space in the cup body, the air extraction cover comprises an air inlet communicated with the air inlet and an air outlet communicated with the air vent, the air extraction device is communicated with the air outlet, when performing vacuum extraction, the air extraction device extracts air in the cup body through the air vent and the air outlet, and when performing pressure release, external air enters the cup body through the air inlet and the air inlet.

Above-mentioned technical scheme bleed and pressure release subassembly through bleed cover set up with the air inlet of external intercommunication and with the gas outlet of air exhaust device intercommunication to carry out evacuation and pressure release, simple structure.

Furthermore, the air exhaust cover and the cover plate enclose a containing part, the air outlet is communicated with the containing part, and when the vacuum is exhausted, air in the cup body is exhausted through the vent hole, the containing part and the air outlet.

Further, the air exhaust and pressure relief assembly comprises a one-way valve assembled to the cover plate, the one-way valve comprises a blocking piece located in the storage portion, and the blocking piece can be opened by suction of the air exhaust device to enable air to enter the storage portion through the vent hole.

According to the technical scheme, the air exhaust and pressure relief assembly is provided with the one-way valve, so that external air is prevented from entering the air vent, and the accommodating part can accommodate the blocking piece of the one-way valve, so that the space is saved.

Further, the air exhaust cover comprises a top wall, a side wall extending from the top wall, and a first fixing column and a second fixing column extending from the side wall, the top wall, the side wall and the cover plate enclose the accommodating part, the air outlet penetrates through the first fixing column, and the air inlet penetrates through the second fixing column.

Above-mentioned technical scheme's extraction cover is through setting up first fixed column and the fixed first trachea of second fixed column and second trachea, the convenient equipment first trachea and second trachea.

Further, the air exhaust and pressure relief assembly comprises a button assembly, the button assembly comprises an exhaust button and an exhaust valve body, the exhaust valve body comprises an accommodating part and an exhaust channel communicated with the accommodating part, the exhaust channel is communicated with the air inlet, and the exhaust button moves relative to the exhaust valve body to enable outside air to enter the accommodating part.

According to the technical scheme, the button assembly is pressed to release pressure, and the operation is simple and convenient.

Furthermore, the button assembly comprises a sealing ring and an elastic piece, the sealing ring is assembled to the exhaust button, the exhaust button drives the sealing ring to move so that outside air can enter the accommodating part, and the elastic force of the elastic piece drives the sealing ring to move so as to isolate the accommodating part from an outside space.

Above-mentioned technical scheme's button assembly passes through the exhaust button and drives the sealing member and remove with the pressure release, simple structure.

Further, the button assembly further comprises an activation button and a circuit board, the circuit board including a contact, the activation button pressing the contact to activate the air evacuation device.

The button assembly of the technical scheme comprises the starting button to start the air extracting device, and the button assembly is simple in structure and easy to operate.

Further, the air exhaust and pressure relief assembly comprises a first air pipe communicated with the air outlet and the air exhaust device and a second air pipe communicated with the air inlet and the exhaust channel.

The invention also provides a vacuum head assembly, which comprises a base, an upper cover and the air pumping and pressure releasing assembly, wherein a space is enclosed by the base and the upper cover, the air pumping and pressure releasing assembly is positioned in the space, and the cover plate is arranged on the base.

The vacuum head assembly of the technical scheme is simple in structure and can be vacuumized and decompressed by arranging the air inlet communicated with the outside and the air outlet communicated with the air exhaust device on the air exhaust cover.

Further, the base includes the bottom plate and from the lateral wall that the bottom plate extends, the bottom plate, the lateral wall and the upper cover encloses into the space, the apron is the bottom plate.

The vacuum head assembly of the technical scheme is convenient to assemble the button assembly.

The invention further provides a cup cover assembly, which comprises a cup cover and the air pumping and pressure relief assembly, wherein the cover plate is arranged on the cup cover.

In yet another aspect, the present invention provides a cup lid assembly including a cup lid and the above-described vacuum head assembly assembled to the cup lid.

Above-mentioned technical scheme's bowl cover subassembly is through setting up pump assembly and pressure release subassembly are in order to carry out evacuation and pressure release, simple structure.

Further, the lid assembly includes a seal connecting the vacuum head assembly and the lid.

The vacuum head assembly and the cup cover are connected through the sealing piece, so that the vacuum head assembly is easy to assemble and good in sealing effect.

Further, the bowl cover includes equipment portion and certainly spacing muscle that the equipment portion extends, the sealing member including can be used for with spacing muscle laminating sealed first sealing portion and can be used for with equipment portion laminating sealed second sealing portion.

The sealing element, the limiting rib and the assembling part are sealed simultaneously, and the sealing effect is good.

Further, the sealing member includes a main body portion used for being attached to the assembling portion, and a first limiting portion and a second limiting portion extending from the main body portion, the second limiting portion is located between the first sealing portion and the first limiting portion, the vacuum head assembly includes a second extending portion located between the first limiting portion and the second limiting portion, and the first limiting portion and the second limiting portion are attached to the second extending portion in a sealing mode.

The sealing element of the technical scheme is attached to and sealed with the first limiting part and the second limiting part of the vacuum head assembly, and the sealing effect is good.

Furthermore, the vacuum head assembly comprises a third extending part which is positioned on one side of the first limiting part and is attached and sealed with the first limiting part.

The first spacing portion of sealing member of above-mentioned technical scheme with the laminating of the third extension of vacuum head subassembly is sealed, and is sealed effectual.

Further, the vacuum head assembly comprises a first extension part, and the limiting rib is located between the first extension part and the first sealing part.

According to the technical scheme, the first extending portion of the vacuum head assembly is located on one side of the limiting rib so as to limit the vacuum head assembly and prevent the vacuum head assembly from shaking.

The invention also provides a food processor, which comprises the cup cover assembly and a cup body assembled to the cup cover assembly.

Above-mentioned technical scheme's cooking machine carries out evacuation and pressure release, simple structure through bleeding and pressure release subassembly.

The invention also provides a food processor, which comprises a cup body and the vacuum head assembly, wherein the vacuum head assembly is assembled to the cup body.

Drawings

Fig. 1 is a perspective view of the food processor of the present invention.

FIG. 2 is an exploded view of the vacuum head assembly of the present invention.

Fig. 3 is a perspective view of a lower cover of the vacuum head assembly shown in fig. 2.

Fig. 4 is a perspective view of the suction cap shown in fig. 2.

Fig. 5 is a cross-sectional schematic view of a button assembly of the vacuum head assembly shown in fig. 2.

Fig. 6 is a cross-sectional schematic view of the lid assembly of the present invention.

Fig. 7 is an enlarged view at B of the sectional view shown in fig. 6.

Fig. 8 is a perspective view of a seal of the lid assembly of the present invention.

Fig. 9 is an enlarged view at a of the sectional view shown in fig. 6.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1 to 9, the food processor of the present invention may be a soymilk maker, a juice extractor, a wall breaking machine, etc. The cooking machine comprises a machine base assembly 1, a cup body assembly 2 and a cup cover assembly 3. The stand assembly 1 includes a housing 10 and a motor (not shown) disposed within the housing 10. A stirring blade assembly (not shown) is provided in the cup body assembly 2. The motor drives the stirring knife assembly to rotate so as to stir the food materials.

Referring now to fig. 1 with emphasis on the illustration, the cup assembly 2 is removably mounted to the base assembly 1. Food materials are contained in the cup body component 2 and are stirred in the cup body component. The cup body assembly 2 comprises a cup body 21, a cup body handle 22 arranged on one side of the cup body 21 and a base 24 positioned at one end of the cup body 21. The cup 21 may be made of glass, metal (e.g., stainless steel), or the like, and includes a rim (not shown). In the illustrated embodiment, the base 24 can be clamped or screwed onto the base assembly 1, and the cup assembly 2 is mounted on the base assembly 1 through the assembly of the base 24 and the housing 10 of the base assembly 1.

Referring now to FIG. 6, the lid assembly 3 is removably assembled to the cup 21. The cap assembly 3 includes a vacuum head assembly 32, a seal 31 and a cap 30 assembled together. The lid 30 is assembled to the cup 21. The seal 31 is attached to the lid to secure the vacuum head assembly 32 with the lid 30. The cup cover 30 comprises an assembling portion 301 provided with a channel 3010, a limiting rib 302 extending from the assembling portion 301 and an installation portion 303. The mounting portion 303 is assembled to a rim of the cup body 21. The channel 3010 is for adding food material. The limiting rib 302 and the mounting portion 303 extend in opposite directions.

Referring now to FIG. 2, the vacuum head assembly 32 includes a base 320, a sealing ring 321, a one-way valve 322, a pump and pressure relief assembly, a circuit board 325, and a top cover 327. The air pumping and pressure releasing assembly comprises a cover plate, a pumping cover 323, an air pumping device 324, a button assembly 326, a first air pipe 328 connecting the pumping cover 323 and the air pumping device 324, and a second air pipe 329 connecting the pumping cover 323 and the button assembly 326.

Referring to fig. 3, the base 320 includes a bottom plate 3201, a side wall 3202 extending from the bottom plate 3201, and a mounting hole 3203, a vent hole 3204 and an air inlet hole 3205 disposed on the bottom plate 3201. The vent hole 3204 and the intake hole 3205 communicate with the space inside the cup body 21. The bottom plate 3201, the side walls 3202, and the top cover 327 enclose a space 3206. The air extractor 324, the circuit board 325, the button assembly 326, the first air tube 328 and the second air tube 329 are located in the space 3206. In the illustrated embodiment, the cover plate is the base plate 3201.

In the illustrated embodiment, the side walls 3202 extend from the bottom plate 3201 to facilitate assembly of the button assembly 326 with the top cover 327, although the present application is not limited thereto. The side wall 3202 may be disposed on the upper cover 327, and the base 320 may be disposed only on the bottom plate 3201.

Referring to fig. 6 to 7, the check valve 322 includes a mounting portion 3220 assembled to the mounting hole 3203 and a stopper 3221 extending from the mounting portion 3220. The suction force of the suction device 324 causes the baffle 3221 to open the vent hole 3204 to perform a vacuum pumping operation, and the baffle 3221 may be used to seal the vent hole 3204 to prevent external air from entering through the vent hole.

Referring to fig. 4, the suction cover 323 includes a top wall 3230, a side wall 3231 extending from the top wall 3230, a retaining wall 3239, and a first fixing post 3232 and a second fixing post 3233 extending from the side wall 3231. The top wall 3230, the side walls 3231, the retaining wall 3239 and the bottom plate 3201 form a receiving portion 3234 and an air inlet passage 3237. The retaining wall 3239 partitions the housing portion 3234 and the intake passage 3237. The first fixing post 3232 includes an air outlet port 3236 communicating with the receiving portion 3234. The second fixing post 3233 includes an air inlet port 3235 communicating with the air inlet port 3205. The first air tube 328 is fixed to the first fixing post 3232, and the second air tube 329 is fixed to the second fixing post 3233, so that the first air tube 328 and the second air tube 329 are easily assembled. The sealing ring 321 is located between the pumping cover 323 and the bottom plate 3201 of the base 320, so as to prevent air leakage between the pumping cover 323 and the bottom plate 3201 of the base 320.

In the illustrated embodiment, the pump and pressure relief assembly is disposed on the vacuum head assembly 32, and the vacuum head assembly 32 is assembled to a cup cover 30, but the present application is not limited thereto. The positions of the air exhaust and pressure relief assembly can be set according to actual needs. For example, the vacuum head assembly can be directly assembled to a cup body, and can be assembled and fixed by means of screwing or screwing in the cup mouth of the cup body.

In the illustrated embodiment, the bottom plate 3201 of the vacuum head assembly 32 and the suction cover 323 enclose the receiving portion 3234, but the present application is not limited thereto. As shown in fig. 6, the channel 3010 and the bottom plate 3201 of the vacuum head assembly 32 may be eliminated, the assembling portion is designed to cover the plate-shaped portion of the cup body 21, and the cover plate of the air suction and pressure release assembly is the assembling portion. The mounting holes 3203, the vent holes 3204, and the air inlet holes 3205 are disposed in the assembly portion.

The first air tube 328 is communicated with the air suction device 324 and the air outlet 3236 of the air suction cover 323. When the air extractor 324 is operated, the suction force of the air extractor 324 causes the stopper 3221 to open the vent 3204, and air in the cup 21 is extracted through the vent 3204, the accommodating portion 3234 and the air outlet 3236. When the air extractor 324 stops working, the stop 3221 seals the vent 3204 to prevent outside air from entering the cup body 21. In the illustrated embodiment, the gas-withdrawal device 324 is a vacuum pump.

Referring to fig. 5, the button assembly 326 includes a support 3260, an actuating button 3261 assembled to the support 3260, a venting button 3263 and a venting valve body 3262, a sealing ring 3264 assembled to the venting button 3263, and an elastic member 3265. The activation button 3261, when pressed, abuts a contact 3251 on the circuit board 325 to activate the air extractor 324, which is simple in structure and easier to operate than an activation button provided on the base assembly 1.

The exhaust valve body 3262 includes a receiving portion 32620 and an exhaust passage 32621 communicating with the receiving portion 32620. The second air pipe 329 communicates the exhaust passage 32621 with the air inlet 3235 of the suction cover 323. When the exhaust button 3263 is pressed, the exhaust button 3263 drives the sealing ring 3264 to move into the accommodating portion 32620 of the exhaust valve body 3262, so that the accommodating portion 32620 is communicated with the outside, outside air can enter the accommodating portion 32620, and further enters the cup body 21 through the second air pipe 329, the air inlet 3235 of the extraction cover 323, the air inlet channel 3237 and the air inlet 3205 of the base 320, so as to perform pressure relief, and the operation is simple and convenient. When the exhaust button 3263 is pressed, the exhaust button 3263 can compress the elastic member 3265, and when the exhaust button 3263 is released, the elastic force of the elastic member 3265 drives the exhaust button 3263 to reset, so as to further drive the sealing ring 3264 to reset, so that the outside air cannot enter the accommodating portion 32620 of the exhaust valve body 3262, that is, cannot enter the cup body 21, and the vacuum degree in the cup body 21 is effectively ensured.

In the illustrated embodiment, the exhaust valve body 3262 is fixed to the support 3260 by a screw 3266, but the present application is not limited thereto. The exhaust valve body 3262 can be secured to the support 3260 by snap-fit, threaded engagement, or welding, among other methods. The exhaust valve body 3262 may also be integrally formed with the support 3260.

The upper cover 327 is fixed to the base 320. The upper cover 327 includes a first pressing portion 3270 corresponding to the activation button 3261 and a second pressing portion 3271 corresponding to the exhaust button 3263, the activation button 3261 can be pressed by pressing the first pressing portion 3270, and the exhaust button 3263 can be pressed by pressing the second pressing portion 3271, so as to protect the activation button 3261 and the exhaust button 3263.

Referring to fig. 8-9, the base 320 of the vacuum head assembly 32 includes a first extension 3207, a second extension 3208, and a third extension 3209 extending from the base plate 3201.

The sealing member 31 includes a main body 310, a first position-limiting portion 311 extending upward from the main body 310, a second position-limiting portion 312, a first sealing portion 313 extending upward from the second position-limiting portion 312, and a second sealing portion 314 extending downward from the main body 310, so that the sealing member 31 has better sealing effect and better strength, and the joints between the first sealing portion 313 and the second position-limiting portion 312 and between the second sealing portion 314 and the main body 310 are prevented from being broken. The present invention is not limited thereto, and the first sealing portion 313 and the second sealing portion 314 may be formed to extend from the main body portion 310 or from the second stopper portion 311.

The first sealing portion 313 and the second extending portion 314 are formed to extend obliquely. The thicknesses of the first sealing part 313 and the second sealing part 314 are smaller than that of the first limiting part 311, and the first sealing part 313 and the second sealing part 314 are easy to deform, so that a better sealing effect is achieved. The main body portion 310, the first stopper portion 312, the second stopper portion 312, the first seal portion 313, and the second seal portion 314 are substantially annular.

The first limiting portion 311 is attached to and sealed with the first extending portion 3207 and the second extending portion 3208, the second limiting portion 312 is attached to and sealed with the second extending portion 3208, the first sealing portion 313 is attached to and sealed with the limiting rib 302 of the cup cover 30, and the main body portion 310 and the second sealing portion 314 are attached to and sealed with the assembling portion 301 of the cup cover 30, so that the sealing element 31 has a good sealing effect. The third extension part 3209 is located outside the limiting rib 302 of the cap 30 to limit the vacuum head assembly 32. The second seal portion 314 vacuum-adheres with the assembly portion 301 of the cap 30 to secure the seal 31 to the cap 30. When the pressure in the cup 21 is less than atmospheric pressure, the vacuum head assembly 32 is securely positioned to the lid 30 due to the atmospheric pressure. When the vacuum head assembly 32 needs to be taken down, the vacuum head assembly 32 can be taken down by pressing the exhaust button 3263 for pressure relief.

In the illustrated embodiment, the vent 3204 and the inlet 3205 are disposed on the vacuum head assembly 32, but the present application is not limited thereto. The vent hole 3204 and the air inlet hole 3205 may be disposed on the assembling portion 301 of the cup cover 30, that is, the assembling portion 301 is equivalent to the bottom plate 3201.

In the illustrated embodiment, the cap 30 includes a limiting rib 302, and the first sealing portion 313 of the sealing member 31 is in close sealing contact with the limiting rib 302 of the cap 30, but the application is not limited thereto. When the cap 30 is not provided with the limiting rib 302, the second sealing portion 314 of the sealing element 31 can be only used for being attached and sealed with the assembling portion 301 of the cap 30.

In the illustrated embodiment, the main body portion 310 of the sealing member 31 is in close sealing contact with the assembling portion 301 of the cap 30, but the present application is not limited thereto. The main body 310 may not be attached to the assembly portion 301.

The air suction and pressure relief assembly is simple in structure, and performs vacuum suction and pressure relief by arranging the air inlet 3235 communicated with the button assembly 326 and the air outlet 3236 communicated with the air suction device 324 on the air suction cover 323.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A gas pumping and pressure relieving assembly capable of vacuumizing and relieving pressure of a cup body (21), the gas pumping and pressure relieving assembly comprising a cover plate, a gas pumping cover (323) and a gas pumping device (324), the cover plate comprises a gas inlet hole (3205) and a vent hole (3204) which are communicated with the space in the cup body (21), the gas pumping cover (323) comprises a top wall (3230), a side wall (3231) extending from the top wall (3230) and a first fixing column (3232) and a second fixing column (3233) extending from the side wall (3231), the top wall (3230), the side wall (3231) and the cover plate enclose a receiving part (3234), the gas pumping cover (323) comprises a gas inlet (3235) communicated with the gas inlet hole (3205) and a gas outlet (3236) communicated with the vent hole (3204), and the gas outlet (3236) penetrates through the first fixing column (3232), the air inlet (3235) penetrates through the second fixing column (3233), the air suction cover (323) is provided with an air inlet channel (3237) and a retaining wall (3239) for separating the accommodating part (3234) from the air inlet channel (3237), the air suction device (324) is communicated with the air outlet (3236), when vacuum is drawn, the air suction device (324) sucks air in the cup body (21) through the vent hole (3204), the accommodating part (3234) and the air outlet (3236), when pressure is relieved, outside air enters the cup body (21) through the air inlet (3235), the air inlet channel (3237) and the air inlet (3205), the air suction and pressure relief assembly further comprises a button assembly (326), a first air pipe (328) and a second air pipe (329), and the first air pipe (328) is communicated with the air outlet (3236) and the device (324), the second air tube (329) communicates the air inlet port (3235) with the button assembly (326).

2. The gas evacuation and pressure relief assembly according to claim 1, comprising a one-way valve (322) assembled to the cover plate, the one-way valve (322) comprising a flap (3221) located within the housing portion (3234), suction from the gas evacuation device (324) opening the flap (3221) to allow gas to enter the housing portion (3234) through the vent aperture (3204).

3. The pump evacuation and pressure relief assembly according to claim 1 or 2, comprising a button assembly (326), said button assembly (326) comprising a vent button (3263) and a vent valve body (3262), said vent valve body (3262) comprising a receiving portion (32620) and a vent channel (32621) in communication with said receiving portion (32620), said vent channel (32621) being in communication with said air inlet (3235), said vent button (3263) being movable relative to said vent valve body (3262) to allow ambient air to enter said receiving portion (32620).

4. The pump down and pressure relief assembly of claim 3 wherein said button assembly (326) includes a sealing ring (3264) and a resilient member (3265) assembled to said venting button (3263), said venting button (3263) moving said sealing ring (3264) to allow ambient air to enter said housing portion (32620), said resilient member (3265) moving said sealing ring (3264) to isolate said housing portion (32620) from an ambient space.

5. The suction and pressure relief assembly of claim 3 wherein said button assembly (326) further comprises an activation button (3261) and a circuit board (325), said circuit board (325) comprising a contact (3251), said activation button (3261) pressing said contact (3251) to activate said suction device (324).

6. The air evacuation and pressure relief assembly of claim 3, wherein the second air tube (329) communicates the air inlet port (3235) with the exhaust passage (32621).

7. Vacuum head assembly, comprising a base (320), an upper cover (327) and a pumping and pressure relief assembly according to any of claims 1 to 6, the base (320) and the upper cover (327) enclosing a space (3206), the pumping and pressure relief assembly being located in the space (3206), the cover being arranged on the base (320).

8. The vacuum head assembly as claimed in claim 7, wherein the base (320) includes a bottom plate (3201) and a sidewall (3202) extending from the bottom plate (3201), the sidewall (3202), and the upper cover (327) enclose the space (3206), and the cover plate is the bottom plate (3201).

9. A lid assembly comprising a lid (30) and a pump and pressure relief assembly as claimed in any one of claims 1 to 6, the lid being provided to the lid (30).

10. A lid assembly comprising a lid (30) and a vacuum head assembly as claimed in claim 7 or 8 assembled to the lid (30).

11. The lid assembly of claim 10, including a seal (31) connecting the vacuum head assembly and the lid (30).

12. The lid assembly of claim 11, wherein the lid (30) includes an assembly portion (301) and a retention bead (302) extending from the assembly portion (301), the seal (31) including a first seal portion (313) operable to form a snug seal with the retention bead (302) and a second seal portion (314) operable to form a snug seal with the assembly portion (301).

13. The cup lid assembly of claim 12, wherein the seal (31) includes a main body portion (310) adapted to engage the assembly portion (301), and a first limiting portion (311) and a second limiting portion (312) extending from the main body portion (310), the second limiting portion (312) being located between the first sealing portion (313) and the first limiting portion (311), the vacuum head assembly including a second extending portion (3208) located between the first limiting portion (311) and the second limiting portion (312), the first limiting portion (311) and the second limiting portion (312) engaging and sealing with the second extending portion (3208).

14. The cup lid assembly of claim 13, wherein the vacuum head assembly includes a first extension (3207) located on a side of the first stopper portion (311) and in sealing engagement with the first stopper portion (311).

15. The lid assembly of claim 14, wherein the vacuum head assembly includes a third extension (3209), the retention rib (302) being located between the third extension (3209) and the first seal (313).

16. A food processor including a lid assembly as claimed in any one of claims 9 to 15 and a cup (21) assembled to the lid assembly.

17. Food processor characterized in that it comprises a cup (21) and a vacuum head assembly according to claim 7 or 8, assembled to said cup (21).