CN221555334U - Vacuum sealing cover, vacuumizing container and kitchen appliance - Google Patents

Abstract

The utility model relates to the technical field of food material preservation, in particular to a vacuum sealing cover, a vacuumizing container and a kitchen appliance, wherein the vacuum sealing cover adopts a vacuum pump, a control board and an air pressure sensor; after a period of time, when the air pressure sensor detects that the vacuum degree in the container is lower than a set value, the vacuum pump automatically works to continuously vacuumize to the set value, so that the vacuum degree in the container can be ensured, the fresh-keeping time of food materials can be prolonged, and the vacuum pump is simple in structure and convenient to use. The vacuum sealing cover can ensure the vacuum degree in the container, prolong the fresh-keeping time of food materials, and has simple structure and convenient use.

Description

Vacuum sealing cover, vacuumizing container and kitchen appliance

Technical Field

The utility model relates to the technical field of food material preservation, in particular to a vacuum sealing cover, a vacuum-pumping container and a kitchen appliance.

Background

Chef's machine is a common kitchen appliance, and it is often used for beating butter and egg liquid in addition to stirring, when needs to keep fresh to the food in the stirred tank, need to carry out the evacuation to it.

Food processors are of many kinds, if juice machine, soybean milk machine, broken wall machine etc. they usually have host computer and cup, and more food processors all possess the function of heating, have come to appear in the market moreover and have the food processor of evacuation function to satisfy better fresh-keeping use.

The utility model patent of China with the application number of 20162083664. X discloses a vacuumizing cup cover and a cooking machine with the same, wherein the vacuumizing cup cover comprises a cup cover main body, a vacuum suction nozzle assembly is arranged on the cup cover main body in a sealing manner, an air inlet end of the vacuum suction nozzle assembly is exposed on a cover end face of the cup cover main body, and an air outlet end of the vacuum suction nozzle assembly extends into the cup cover main body; the cup cover main body is internally provided with an inner cavity, the inner cavity is provided with a vacuum pump, the air inlet end of the vacuum pump is communicated with the inner cavity or the air outlet end of the vacuum suction nozzle assembly, and the air outlet end of the vacuum pump is communicated with the outside. The food processor comprises a machine base, a cup body and a cup cover, wherein the cup cover is the vacuumizing cup cover. The cup cover has the vacuumizing function, the design of other parts of the traditional food processor is not required to be changed, the research and development cost and the manufacturing cost are very low, the cup cover can be directly covered on the cup body of the traditional food processor to realize the vacuumizing function, the use is very convenient and reliable, the cleaning is easier, and the maintenance cost is very low in the future.

The food in the cup body can be fermented to generate gas, or the cup body is excessively long to be permeated with new air, so that the fresh-keeping effect on the food is large.

Disclosure of utility model

In order to overcome the defects and the shortcomings in the prior art, the utility model aims to provide a vacuum sealing cover, a vacuum-pumping container and a kitchen appliance.

The aim of the utility model is achieved by the following technical scheme: the vacuum sealing cover is used for sealing the cover on the container and comprises a cover body, a vacuum sealing ring sleeved on the outer side wall of the cover body, a cavity formed in the cover body, an air suction nozzle arranged in the cavity and communicated with the interior of the container, and a vacuumizing component and a pressure relief component which are arranged in the cavity, wherein the vacuumizing component comprises a vacuum pump, a control board, an air pressure sensor and a one-way valve; the pressure release assembly comprises a pressure release plug, the pressure release plug is opened, the container is internally communicated with the outside, the pressure release plug is closed, and the container is internally sealed relative to the outside.

Further, a first suction nozzle communicated with the inside of the container is arranged in the cavity, and the air pressure sensor is communicated with the first suction nozzle through a pipeline.

Further, a three-way joint is connected between the other end of the one-way valve and the suction nozzle through a pipeline, and the air pressure sensor is communicated with the other interface of the three-way joint through a pipeline.

Further, the lid includes the lower cover and is fixed in the upper cover at lower cover top, the cavity is seted up in the lower cover, and the pressure release hole has been seted up at the top of upper cover, the pressure release plug embedding is in the pressure release hole, and the outer edge of pressure release hole is provided with annular boss, and the outside of annular boss is protruding downwards to be equipped with first annular lateral wall, and the top of lower cover corresponds the position fixing of first annular lateral wall has annular base, presss from both sides between the bottom of first annular lateral wall and the top of annular base and is equipped with first sealing washer, and the bottom of upper cover, first annular lateral wall, first sealing washer, annular base and the top of lower cover enclose into one and be used for the chamber of bleeding or pressure release, the suction nozzle of bleeding is fixed in on the first annular lateral wall and communicates with the chamber of bleeding, set up a plurality of with the inside intercommunication of container in the annular base.

Further, the pressure release plug includes that top seal and bottom open-ended barrel, protruding locate barrel top lateral wall's first bulge loop, protruding locate barrel bottom lateral wall's second bulge loop and be fixed in the portion of pulling up at barrel top, first bulge loop's bottom surface with the top surface of annular boss is inconsistent, and annular boss's inboard is protruding to be equipped with second annular lateral wall downwards, and second annular lateral wall presss from both sides and locates between first bulge loop and the second bulge loop, and a plurality of evenly distributed's breach of ventilating has been seted up to the bottom of second annular lateral wall, annular base's middle part be provided with the inside second suction nozzle of intercommunication of container, the top of second suction nozzle upwards stretches into in the bottom opening of barrel.

Further, the top of the annular boss is provided with a first annular bulge in an upward protruding mode; the bottom of first annular lateral wall is protruding downwards to be equipped with the annular arch of second, the top of annular base is protruding upwards to be equipped with the annular arch of third.

Further, an arc-shaped elastic sheet for displaying the vacuumizing state inside the container is arranged in the middle of the pulling-up part.

Further, the cover body comprises a lower cover and an upper cover fixed at the top of the lower cover, the cavity is formed in the lower cover, the pressure release plug comprises a key, a key rod fixed at the bottom of the key and a plunger abutted to the bottom of the key rod, a mounting groove is formed in the top of the upper cover, which corresponds to the position of the key, a mounting hole matched with the key rod is formed in the mounting groove, the middle part of the key rod is slidably connected in the mounting hole, a vent hole communicated with the inside of the container is formed in the position, corresponding to the plunger, of the lower cover, and the bottom of the plunger penetrates through the vent hole and extends out of the vent hole; the outside cover of button pole is equipped with reset spring, and reset spring's both ends butt respectively are between the top surface of upper cover and the bottom surface of button, and annular groove has been seted up to the bottom circumference of plunger, and annular groove embeds and is equipped with the second sealing washer, and the outside of second sealing washer is outstanding in the outside of plunger to butt in the bottom edge of air vent.

Further, a third suction nozzle communicated with the inside of the container is arranged at the bottom of the lower cover, a rubber plug used for displaying the vacuumizing state inside the container is sleeved at the top of the third suction nozzle, a through hole is formed in the top of the upper cover corresponding to the position of the rubber plug, and the top of the rubber plug is embedded into the through hole.

Further, the middle part of vacuum seal circle is protruding to be equipped with at least one third bulge loop outward, is formed with the air cavity between the middle part inside wall of vacuum seal circle and the middle part lateral wall of lid, and the bottom of vacuum seal circle and the bottom sealing connection of lid, the inside and the external intercommunication of air cavity.

The vacuumizing container comprises a container and the vacuum sealing cover, and the vacuum sealing cover is sealed on the container.

The kitchen appliance comprises a machine base and a container, wherein the machine base is detachably connected with the container, and the kitchen appliance further comprises the vacuum sealing cover which is sealed on the container.

The utility model has the beneficial effects that: according to the vacuum sealing cover, the vacuum pump, the control board and the air pressure sensor are adopted, the control board is provided with the control switch, the control switch is started, the vacuum pump starts to vacuumize, and when the air pressure sensor detects that the vacuum degree in the container reaches the set value of the control board, the vacuum pump stops working; after a period of time, when the air pressure sensor detects that the vacuum degree in the container is lower than a set value, the vacuum pump automatically works to continuously vacuumize to the set value, so that the vacuum degree in the container can be ensured, the fresh-keeping time of food materials can be prolonged, and the vacuum pump is simple in structure and convenient to use.

The vacuum sealing cover can ensure the vacuum degree in the container, prolong the fresh-keeping time of food materials, and has simple structure and convenient use.

Drawings

Fig. 1 is a perspective view of a vacuum sealing cover according to an embodiment of the present utility model.

Fig. 2 is an exploded perspective view of the vacuum sealing cover according to the embodiment of the present utility model.

Fig. 3 is a perspective view of the pressure release plug according to an embodiment of the present utility model.

Fig. 4 is a perspective view of the upper cover according to the embodiment of the present utility model.

Fig. 5 is a partial cross-sectional view of the evacuated container according to an embodiment of the utility model.

Fig. 6 is a perspective view of a vacuum sealing cover according to a second embodiment of the present utility model.

Fig. 7 is an exploded perspective view of a vacuum sealing cover according to a second embodiment of the present utility model.

Fig. 8 is an exploded perspective view of a pressure release plug according to a second embodiment of the present utility model.

Fig. 9 is a cross-sectional view of a vacuum vessel according to a second embodiment of the present utility model.

The reference numerals are: container 10, lid 1, lower lid 11, annular base 111, third annular projection 1111, first gasket 112, suction chamber 113, suction aperture 114, second suction aperture 115, baffle 1151, vent aperture 116, third suction aperture 117, upper lid 12, pressure relief aperture 121, annular boss 122, first annular projection 1221, first annular sidewall 123, second annular projection 1231, second annular sidewall 124, vent indentation 1241, mounting groove 125, mounting aperture 1251, snap hole 1252, through hole 126, vent aperture 127, annular groove 128, decorative ring 129, cavity 13, first suction aperture 131, suction aperture 14, tee joint 141, vacuum pump 151, control panel 152, air pressure sensor 153, one-way valve 154, control switch 155, rechargeable battery 156, charging joint 157, rubber plug 158, pressure relief plug 16, barrel 161, first raised ring 162, second raised ring 163, pull-out portion 164, arcuate resilient tab 165, key 166, key 1661, reset spring 1662, barb 1663, plunger 167, circular boss 1671, annular groove 168, second gasket 168, vacuum gasket 2.

Detailed Description

The present utility model will be further described with reference to examples and fig. 1 to 1, which are not intended to limit the scope of the present utility model.

1-5 Show an embodiment of a vacuum sealing cover for sealing a container 10, which comprises a cover body 1, a vacuum sealing ring 2 sleeved on the outer side wall of the cover body 1, a cavity 13 arranged in the cover body 1, an air suction nozzle 14 arranged in the cavity 13 and communicated with the interior of the container 10, and a vacuumizing component and a pressure relief component arranged in the cavity 13, wherein the vacuumizing component comprises a vacuum pump 151, a control board 152, an air pressure sensor 153 and a one-way valve 154, the control board 152 is provided with a control switch 155, the control board 152 is respectively electrically connected with the air pressure sensor 153, the one-way valve 154 and the control switch 155, the air inlet end of the vacuum pump 151 is communicated with one end of the one-way valve 154 through a pipeline, and the other end of the one-way valve 154 is communicated with the air suction nozzle 14 through a pipeline, and the air pressure sensor 153 is communicated with the interior of the container 10 or communicated with the air suction nozzle 14 through a pipeline; the pressure release assembly comprises a pressure release plug 16, wherein the pressure release plug 16 is opened, the interior of the container 10 is communicated with the outside, the pressure release plug 16 is closed, and the interior of the container 10 is sealed relative to the outside.

The vacuum sealing cover adopts the vacuum pump 151, the control board 152 and the air pressure sensor 153, the control board 152 is provided with the control switch 155, the control switch 155 is started, the vacuum pump 151 starts to work and vacuumizes, and when the air pressure sensor 153 detects that the vacuum degree in the container 10 reaches the set value of the control board 152, the vacuum pump 151 stops working; after a period of time, when the air pressure sensor 153 detects that the vacuum degree in the container 10 is lower than the set value, the vacuum pump 151 automatically works to continuously vacuumize to the set value, so that the vacuum degree in the container 10 can be ensured, the fresh-keeping time of food materials can be prolonged, and the structure is simple and the use is convenient.

In this embodiment, a three-way joint 141 is connected between the other end of the check valve 154 and the suction nozzle 14 through a pipeline, and the air pressure sensor 153 is communicated with another interface of the three-way joint 141 through a pipeline. By using the three-way joint 141, the air pressure sensor 153 can detect the vacuum degree in the container 10 through another interface of the three-way joint 141.

In this embodiment, the cover body 1 includes a lower cover 11 and an upper cover 12 fixed on the top of the lower cover 11, the cavity 13 is formed in the lower cover 11, a pressure release hole 121 is formed in the top of the upper cover 12, the pressure release plug 16 is embedded in the pressure release hole 121, an annular boss 122 is disposed at the outer edge of the pressure release hole 121, a first annular side wall 123 is protruding downwards from the outer side of the annular boss 122, an annular base 111 is fixed at the top of the lower cover 11 corresponding to the position of the first annular side wall 123, a first sealing ring 112 is clamped between the bottom of the first annular side wall 123 and the top of the annular base 111, an air extraction cavity 113 for air extraction or pressure release is enclosed by the bottom of the upper cover 12, the first annular side wall 123, the first sealing ring 112, the annular base 111 and the top of the lower cover 11, and the air extraction nozzle 14 is fixed on the first annular side wall 123 and is communicated with the air extraction cavity 113, and a plurality of air extraction holes 114 communicated with the interior of the container 10 are formed in the annular base 111. By enclosing the bottom of the upper cover 12, the first annular side wall 123, the first sealing ring 112, the annular base 111 and the top of the lower cover 11 into an air extraction cavity 113, air in the container 10 enters the air extraction cavity 113 from the air extraction hole 114, air extraction can be performed through the air extraction suction nozzle 14, and pressure relief can be performed through the pressure relief plug 16.

In this embodiment, the pressure relief plug 16 includes a top-sealed and bottom-opened cylinder 161, a first collar 162 protruding from an outer sidewall of a top of the cylinder 161, a second collar 163 protruding from an outer sidewall of a bottom of the cylinder 161, and a pulling portion 164 fixed to a top of the cylinder 161, a bottom surface of the first collar 162 abuts against a top surface of the annular boss 122, a second annular sidewall 124 protrudes downward from an inner side of the annular boss 122, the second annular sidewall 124 is sandwiched between the first collar 162 and the second collar 163, a plurality of uniformly distributed ventilation gaps 1241 are formed in a bottom of the second annular sidewall 124, a second suction nozzle 115 communicating with an inside of the container 10 is disposed in a middle of the annular base 111, and a top of the second suction nozzle 115 extends upward into the bottom opening of the cylinder 161. The arrangement of the structure is convenient for limiting the pressure release plug 16, and when pressure release is needed, the pulling-up part 164 is pinched and lifted upwards. Specifically, a gap is formed between the inner side wall of the second annular side wall 124 and the outer side wall of the cylinder 161, a gap is formed between the inner side wall of the cylinder 161 and the outer side wall of the middle upper portion of the second suction nozzle 115, a plurality of radial guide vanes 1151 are arranged at the middle lower portion of the second suction nozzle 115, and the air suction holes 114 are arranged between two adjacent guide vanes 1151, so that the air suction effect is better and noise reduction is facilitated.

In this embodiment, the top of the annular boss 122 is provided with a first annular protrusion 1221; the bottom of the first annular sidewall 123 is provided with a second annular protrusion 1231 in a downward protruding manner, and the top of the annular base 111 is provided with a third annular protrusion 1111 in an upward protruding manner. Specifically, the pressure release plug 16 and the first sealing ring 112 are made of soft rubber, and the sealing effect of the air pumping cavity 113 can be improved due to the arrangement of the structure.

In this embodiment, an arc-shaped elastic piece 165 for displaying the vacuum state of the interior of the container 10 is provided at the middle of the pulling-up portion 164. The arrangement of the arc-shaped elastic sheet 165 can show the vacuumizing state, the top surface of the arc-shaped elastic sheet 165 can adopt a red mark, when the arc-shaped elastic sheet 165 is concave downwards, the vacuumizing state is indicated, and when the arc-shaped elastic sheet 165 is convex upwards, the normal or pressure relief state is indicated.

The vacuum sealing cover of the utility model is also provided with an air outlet hole 127 communicated with the outside at the top of the upper cover 12 for exhausting the air outlet end of the vacuum pump 151, and of course, the vacuum sealing cover can also be used for directly pumping the air in the container 10 into the cavity 13 in the cover body 1 without being arranged. A rechargeable battery 156 is also mounted in the cavity 13, and a charging connector 157 is also provided on the control board 152 for charging the rechargeable battery.

The vacuumizing container comprises a container 10 and the vacuum sealing cover, and the vacuum sealing cover is sealed on the container 10. The vacuumized container can be a stirring pot for a chef machine, a juice squeezing cup for a food processor, a storage tank or a vacuum preservation container 10 with similar caliber.

The kitchen appliance comprises a machine base and a container 10, wherein the machine base is detachably connected with the container 10, and the kitchen appliance further comprises the vacuum sealing cover, and the vacuum sealing cover is sealed on the container 10. The kitchen appliance of the utility model can be a dough mixer (or a dough kneading machine), a chef machine, a fruit juice machine, a soybean milk machine, a wall breaking machine and the like.

The vacuum-pumping container and the kitchen appliance can ensure the vacuum degree in the container 10 by adopting the vacuum sealing cover, prolong the fresh-keeping time of food materials, and have simple structure and convenient use.

As shown in fig. 6-9, which show a second embodiment of the vacuum sealing cover, the present embodiment is different from the first embodiment in that: the cavity 13 is provided therein with a first suction nozzle 131 communicating with the inside of the container 10, and the air pressure sensor 153 communicates with the first suction nozzle 131 through a pipe. By employing the first suction nozzle 131, the air pressure sensor 153 can detect the degree of vacuum in the container 10 through the first suction nozzle 131.

In this embodiment, the cover body 1 includes a lower cover 11 and an upper cover 12 fixed on the top of the lower cover 11, the cavity 13 is opened in the lower cover 11, the pressure release plug 16 includes a key 166, a key rod 1661 fixed on the bottom of the key, and a plunger 167 abutting against the bottom of the key rod 1661, the top of the upper cover 12 is opened with a mounting groove 125 corresponding to the position of the key 166, the mounting groove 125 is opened with a mounting hole 1251 matching with the key rod 1661, the middle part of the key rod 1661 is slidingly connected in the mounting hole 1251, the position of the lower cover 11 corresponding to the plunger 167 is opened with a vent hole 116 communicating with the interior of the container 10, and the bottom of the plunger 167 passes through the vent hole 116 and extends out of the vent hole 116; the outside cover of button pole 1661 is equipped with reset spring 1662, and reset spring 1662's both ends butt respectively are between the top surface of upper cover 12 and the bottom surface of button 166, and annular groove 168 has been seted up to the bottom circumference of plunger 167, and annular groove 168 is embedded to be equipped with second sealing washer 169, and the outside of second sealing washer 169 is outstanding in the outside of plunger 167 to butt in the bottom edge of air vent 116. Specifically, the bottom of the outer edge of the key 166 is provided with a plurality of barbs 1663 in a protruding manner, the mounting groove 125 is provided with a clamping hole 1252 corresponding to each barb 1663, and the middle part of each barb 1663 is embedded into the corresponding clamping hole 1252, so that the key 166 is convenient to limit; the key lever 1661 and the mounting hole 1251 are cross-shaped, a circular boss 1671 is fixed at the top of the plunger 167, the outer diameter of the circular boss 1671 is larger than the outer diameter of the plunger 167 and the width of the key lever 1661, and two ends of the return spring 1662 are respectively abutted between the inner wall of the upper cover 12 and the top surface of the circular boss 1671, so that the key 166 is conveniently limited and reset. In a normal state, the pressure release plug 16 seals the vent hole 116 through the second sealing ring 169 under the action of the return spring 1662, and the interior of the container 10 is sealed from the outside, so that vacuumizing treatment can be performed; when pressure relief is required, the key 166 is pressed downwards, the plunger 167 drives the second sealing ring 169 to move downwards, the vent hole 116 is opened, and the interior of the container 10 is communicated with the outside through the cavity 13 for pressure relief.

In this embodiment, a third suction nozzle 117 is disposed at the bottom of the lower cover 11 and is in communication with the interior of the container 10, a rubber plug 158 for displaying the vacuum state of the interior of the container 10 is sleeved at the top of the third suction nozzle 117, a through hole 126 is disposed at the top of the upper cover 12 corresponding to the position of the rubber plug 158, and the top of the rubber plug 158 is embedded into the through hole 126. The rubber plug 158 can be arranged to display a vacuumizing state, the top surface of the rubber plug 158 can adopt a red mark, and when the rubber plug 158 is concave downwards, the vacuumizing state is indicated, and when the rubber plug 158 is flush with the surface of the upper cover 12, the normal or pressure relief state is indicated.

In addition, an annular groove 128 is formed on the outer side of the top of the upper cover 12, and a decorative ring 129 is embedded in the annular groove 128.

The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. The vacuum sealing cover is used for sealing the cover on the container and comprises a cover body, a vacuum sealing ring sleeved on the outer side wall of the cover body, a cavity formed in the cover body, an air suction nozzle arranged in the cavity and communicated with the interior of the container, and a vacuumizing assembly and a pressure relief assembly which are arranged in the cavity, and is characterized in that: the vacuum pumping assembly comprises a vacuum pump, a control board, an air pressure sensor and a one-way valve, wherein the control board is provided with a control switch, the control board is respectively and electrically connected with the air pressure sensor, the one-way valve and the control switch, the air inlet end of the vacuum pump is communicated with one end of the one-way valve through a pipeline, the other end of the one-way valve is communicated with an air suction nozzle through a pipeline, and the air pressure sensor is communicated with the inside of the container or the air suction nozzle through a pipeline; the pressure release assembly comprises a pressure release plug, the pressure release plug is opened, the container is internally communicated with the outside, the pressure release plug is closed, and the container is internally sealed relative to the outside.

2. A vacuum sealing cover according to claim 1, wherein: the cavity is internally provided with a first suction nozzle communicated with the inside of the container, and the air pressure sensor is communicated with the first suction nozzle through a pipeline.

3. A vacuum sealing cover according to claim 1, wherein: the other end of the one-way valve is connected with the suction nozzle through a pipeline, and the air pressure sensor is communicated with the other interface of the three-way joint through a pipeline.

4. A vacuum sealing cover according to claim 1, wherein: the lid includes the lower cover and is fixed in the upper cover at lower cover top, the cavity is seted up in the lower cover, and the pressure release hole has been seted up at the top of upper cover, the pressure release plug embedding pressure release downthehole, the outer edge of pressure release hole is provided with annular boss, the outside of annular boss is protruding downwards to be equipped with first annular lateral wall, the top of lower cover corresponds the position fixing of first annular lateral wall has annular base, press from both sides between the bottom of first annular lateral wall and the top of annular base and be equipped with first sealing washer, the bottom of upper cover, first annular lateral wall, first sealing washer, annular base and the top of lower cover enclose into one and be used for the chamber of bleeding or pressure release, bleed the suction nozzle is fixed in on the first annular lateral wall and communicates with the chamber of bleeding, set up a plurality of and in the annular base with the inside communicating hole of bleeding of container.

5. A vacuum sealing cover according to claim 4, wherein: the pressure relief plug comprises a barrel body with a sealed top and an open bottom, a first convex ring convexly arranged on the outer side wall of the top of the barrel body, a second convex ring convexly arranged on the outer side wall of the bottom of the barrel body and a pulling-up part fixed on the top of the barrel body, wherein the bottom surface of the first convex ring is in contact with the top surface of the annular boss, the inner side of the annular boss is downwards convexly provided with a second annular side wall, the second annular side wall is clamped between the first convex ring and the second convex ring, a plurality of uniformly distributed ventilation gaps are formed in the bottom of the second annular side wall, a second suction nozzle communicated with the inside of the container is arranged in the middle of the annular base, and the top of the second suction nozzle upwards stretches into the bottom opening of the barrel body.

6. A vacuum sealing cover according to claim 5, wherein: the middle part of the pulling-up part is provided with an arc-shaped elastic sheet for displaying the vacuumizing state inside the container.

7. A vacuum sealing cover according to claim 1, wherein: the cover body comprises a lower cover and an upper cover fixed at the top of the lower cover, the cavity is formed in the lower cover, the pressure release plug comprises a key, a key rod fixed at the bottom of the key and a plunger abutted to the bottom of the key rod, a mounting groove is formed in the top of the upper cover, corresponding to the key, a mounting hole matched with the key rod is formed in the mounting groove, the middle part of the key rod is slidably connected in the mounting hole, a vent hole communicated with the inside of the container is formed in the position, corresponding to the plunger, of the lower cover, and the bottom of the plunger penetrates through the vent hole and stretches out of the vent hole; the outside cover of button pole is equipped with reset spring, and reset spring's both ends butt respectively are between the top surface of upper cover and the bottom surface of button, and annular groove has been seted up to the bottom circumference of plunger, and annular groove embeds and is equipped with the second sealing washer, and the outside of second sealing washer is outstanding in the outside of plunger to butt in the bottom edge of air vent.

8. The vacuum seal cap of claim 7, wherein: the bottom of lower cover be provided with the inside third suction nozzle that communicates of container, the top cover of third suction nozzle is equipped with the plug that is used for showing the inside evacuation state of container, the through-hole has been seted up to the position that the top of upper cover corresponds the plug, and the top embedding of plug is in the through-hole.

9. The vacuum vessel comprises a vessel, and is characterized in that: a vacuum seal cap as claimed in any one of claims 1 to 8, wherein the vacuum seal cap is adapted to be secured to a container.

10. The kitchen appliance comprises a base and a container, wherein the base is detachably connected with the container, and is characterized in that: a vacuum seal cap as claimed in any one of claims 1 to 8, wherein the vacuum seal cap is adapted to be secured to a container.