CN105902133A

CN105902133A - Automatic sealing and juice receiving container of vacuum juicer

Info

Publication number: CN105902133A
Application number: CN201610357260.3A
Authority: CN
Inventors: 王晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-02
Filing date: 2016-05-26
Publication date: 2016-08-31
Anticipated expiration: 2036-05-26
Also published as: CN105902133B; WO2017036379A1

Abstract

The invention discloses an automatic sealing and juice receiving container of a vacuum juicer. The automatic sealing and juice receiving container comprises a juice receiving container, a sealing cover and a buoyant valve device. The sealing cover is arranged in an opening in the upper end or the upper portion of the side wall of the juice receiving container; a cavity is formed in the sealing cover or the top or the upper portion of the side wall of the juice receiving container. The cavity is completely or partially concaved into the juice receiving container, or the side wall of the cavity completely or partially protrudes out of the juice receiving container. The bottom or the side wall of the cavity is provided with a liquid inlet. An outer port of the cavity is used for being in sealed connection with a juice outlet of the vacuum juicer directly or through a connecting pipe. The buoyant valve device comprises the cavity, the liquid inlet and a floater. The floater is arranged inside the cavity. The automatic sealing and juice receiving container of the vacuum juicer has the advantages that when the vacuum juicer is subjected to vacuum juicing, juice flows into the juice receiving container in the vacuum environment, automatic sealing is performed after juicing is finished, and therefore a consumer can drink the juice after the juice is preserved in the vacuum for a period of time after vacuum juicing. The automatic sealing and juice receiving container is characterized in that the vacuum juicing and vacuum automatic preservation are achieved in the whole process, manual operation is not needed, and juice does not make contact with air.

Description

The automatic-sealed of a kind of vacuum juicer connects juice container

Technical field

The invention belongs to vacuum juicer corollary equipment technical field, particularly relate to the automatic-sealed of a kind of vacuum juicer Connect juice container.

Background technology

Chinese invention patent the 201210139784.7th discloses one by present invention applicant to China Intellectual Property Office Submit and obtain " food processor of band electronic air extracting pump and evacuation produce the method for foodstuff liquid " of mandate to.This food Datatron belongs to a kind of de-airing mixer, mainly includes staving, electric mixing device, electronic air extracting pump and heater； Use the mode sealed to be sealed by staving during use, and extract the air in staving out with electronic air extracting pump, then by fruit and vegerable even Belt core is pulverized under vacuum with water together with electric mixing device, and is made up fruit and vegetable juice of heating devices heat, So can not only greatly reduce and avoid foodstuff liquid that oxidation occurs in pulverizing, heating process, to reduce nutritive loss, And good mouthfeel and appearance color can be kept.

Disclosing one in Chinese invention patent the 201210123144.7th is also to Intellectual Property in China by present invention applicant Office submits to and obtains " juice extractor of band air extracting function " of mandate.This juice extractor mainly includes feeding cylinder, chamber of squeezing the juice, connects Juice portion, residue portion, squeezing mechanism, motor of squeezing the juice, air extractor；Wherein it is provided with sealing device at feeding cylinder, feeding cylinder, Squeeze the juice chamber, connect and between juice portion, residue portion, form the cavity being mutually communicated, and mutually junction is for sealingly connecting；Bleed The bleeding point of device connects with cavity, and the air vent of air extractor is positioned at containment portion；Squeezing mechanism is arranged on intracavity of squeezing the juice, The output shaft of motor of squeezing the juice couples with the drive shaft of squeezing mechanism.This juice extractor can utilize air extractor to be substantially reduced and squeeze the juice The oxygen content of intracavity, the foodstuff of the intracavity that makes to squeeze the juice is squeezed the juice under anoxic conditions, thus is avoided it to send out in juice-extracting process Raw brown stain and nutritive loss, thus keep fruit juice or the nutritional labeling of vegetable juice and mouthfeel.This juice extractor can be by fruit and vegerable Fruit juice, marc be automatically separated, prepare is pure juice.

Owing to the common ground of above-mentioned de-airing mixer and vacuum juicer is to squeeze fruit and vegetable juice in a vacuum, therefore fruit and vegetable juice will not Oxidation occurs, therefore is referred to as vacuum juicer.

But, above-mentioned vacuum juicer there is the problem that and is no matter de-airing mixer or the fruit that vacuum juicer prepares Vegetables juice must eat immediately, and can not preserve in a vacuum, thus have impact on the ease of use of consumer.

Summary of the invention

In order to solve the problems referred to above, it is an object of the invention to provide a kind of vacuum fruit juice that vacuum juicer can be prepared The automatic-sealed of the vacuum juicer carrying out instant vacuum storage connects juice container.

In order to achieve the above object, the automatic-sealed of vacuum juicer that the present invention provides connect juice container include connecing juice container, Seal lid and floating valve door gear；Wherein seal lid and be arranged on the opening part of upper end or the side wall upper part connecing juice container；Connect juice The top of container or side wall upper part or sealing cover and are formed with cavity；Cavity is completely or partially recessed in and connects in juice container, Or the sidewall of cavity completely or partially protrudes from and connects outside juice container；It is formed with inlet on the bottom of cavity or sidewall, its External port is for being tightly connected directly or by the juice opening of connection pipe fitting with vacuum juicer；Floating valve door gear includes recessed Chamber, inlet and float；Wherein float is arranged on the inside of cavity.

Described automatic-sealed connects the cavity lid that juice container also includes being arranged at cavity external port, cavity lid is formed with The connector that vacuum juicer juice opening is mutually matched.

With the big pull bar of the thin afterbody in centre or T-bar below described float；

In the middle part of the pull bar that in the middle of wherein, thin afterbody is big, at least part of diameter less than inlet and runs through inlet, On it, diameter is fluid passage less than the gap between position and the inlet of inlet；This pull bar afterbody be more than into Liquid mouth；

T-bar is by holding bar and pull bar to constitute, and pull bar one end is connected with float, and the other end is connected with end bar；On pull bar at least Some diameter is less than the diameter of inlet, and this part runs through inlet, and on it, diameter is less than the position of inlet And the gap between inlet is fluid passage；End bar is positioned at the inside connecing juice container, and length is more than the straight of inlet Footpath.

With connecting rod and conical plug below described float；Float, connecting rod and conical plug are provided entirely in the interior of cavity Portion；The two ends of connecting rod are separately fixed on the end face of float and conical plug, and the taper seat of conical plug can be at gravity Or block inlet under differential pressure action；Alternatively, described conical plug is further below with the pull bar that the thin afterbody in centre is big.

Described floating valve door gear also includes lower float chamber and lower float；Lower float chamber is fixedly or removably connected to recessed Abluminal wall surface or seal the lower section of lid, inlet communicates with lower float chamber, bottom lower float chamber and/or on sidewall at least One discharge orifice；Lower float is arranged in lower float chamber；

Lower annexation between float and float is:

1) under, buoy upper runs through inlet and is connected with float or is not connected to；Or

2) float bottom is run through inlet and is connected with lower float or is not connected to；Or

3) under, float is connected with float by running through the connecting rod of inlet or is not connected to.

The described discharge orifice on lower float chamber includes bottom drain hole and sidewall discharge orifice；Wherein sidewall discharge orifice is divided into position In the top position of sidewall and be positioned at sidewall two kinds of position on the lower.

Described float is spherical, elliposoidal, wedge shape, taper, cylindrical or flat body structure；The bottom of cavity is Concave arc shape or plane, the concave arc shape being preferably mutually matched with float bottom shape.

Between connector and the juice opening of vacuum juicer in the external port of described cavity or cavity lid be tightly connected for Threaded, snap connection, interference connection or magnetic connect in one；Wherein magnetic connect be cavity external port, Connector at least one place on the juice opening of vacuum juicer or cavity lid arranges permanent magnet or electromagnet, simultaneously corresponding Another at the permanent magnet that ferromagnetism adhesive part, electromagnet or magnetic pole are contrary is set；It is arranged at vacuum juicer juice opening Electromagnet electrically connect with the control circuit plate of vacuum juicer；It is arranged on cavity upper port or cavity covers at connector Electromagnet electrically connects with the battery being arranged in automatic-sealed connects juice container or sealing in lid.

Described cavity protrudes above has Manual air-release valves in the side-walls sealed on lid or described cavity lid.

The described sidewall connecing juice container or sealing have covered air pressure display device, air pressure display device be mechanical type air-pressure gage or Electronic type air gauge；The baroceptor of air pressure display device is located in connecing juice container, seals below lid, and its display sets Cover or connect on juice container side wall in sealing:

Mechanical type air-pressure gage is pointer-type air gauge, and including baroceptor and pointer header, baroceptor is located at and connects Inside juice container side wall or seal below lid, pointer header is located at and connects juice container side wall or sealing covers；

Or it is provided with pressure tap connecing on juice container side wall or sealing to cover, flexible thin film closure in pressure tap；

Electronic type air gauge includes baroceptor, battery, testing circuit and optical display or auditory tone cues device, each portion / it is electrical connection, baroceptor is arranged on and connects inside juice container side wall or seal below lid, and battery is arranged on and connects juice On container or seal and cover, testing circuit is arranged on control circuit board, optical display be arranged on connect on juice container side wall, Sealing covers, and auditory tone cues device is located on control circuit board.

Described lower float chamber is fixedly or removably connected to connect the opening part of juice container and seal between lid, connect juice appearance Device medial wall or connect juice container bottom.

The described top connecing juice container or sidewall, sealing lid, the bottom of cavity, the sidewall of cavity, cavity are recessed The bottom or the cavity that enter the part in connecing juice container are recessed on the sidewall of the part connect in juice container and have through hole, this through hole Place has check valve, the circulating direction of the fluid that described check valve is allowed to be to flow to connect outside juice container in connecing juice container.

Described sealing covers, be additionally provided with protection cap at the external port of cavity or at the connector of cavity lid；Preferably, Described protection cap the structure that can be pressed against float and/or check valve is arranged below.

Have in described connecting rod and/or in float and lower float exhaust passage, concrete structure be selected from 1., 2., 3., 4., 5., 6., 7., 8. or 9. in any one:

1., described connecting rod be hollow shape, inside have exhaust passage, described connecting rod pass float, exhaust passage is at float Surface or top, surface have opening, opening part to have check valve, and the fluid circulating direction that check valve allows is from connecing juice container Inside flow to cavity；The lower ending opening of exhaust passage is positioned at outside the outer wall of cavity and connects with connecing juice container space；

Or

2., described connecting rod be hollow shape, inside have exhaust passage, described connecting rod pass float, exhaust passage is at float Surface or top, surface have opening, opening part to have check valve, and the fluid circulating direction that check valve allows is from connecing juice container Inside flow to cavity；Connecting rod lower end is stretched out below the bottom of lower float chamber through bottom drain hole, and connecting rod lower ending opening is positioned at and connects In juice container and with connect juice container in space connect；

Or

3., the bottom of described float fluted, connecting rod is hollow shape, inside has exhaust passage, and the upper end of connecting rod is positioned at In groove, groove is outer or flushes with groove opening down, and connecting rod is connected with inwall, top or the float of groove, connecting rod The opening of upper-end part of driving be positioned at groove, groove is outer or flushes with groove opening down, connecting rod lower ending opening is positioned at recessed Outside the outer wall in chamber, the one end, exhaust passage in connecting rod connects with space in groove, the other end with connect in juice container space even Logical；

Or

4., the bottom of described float fluted, connecting rod is hollow shape, inside has exhaust passage, and the upper end of connecting rod is positioned at In groove, groove is outer or flushes with groove opening down, and connecting rod is connected with inwall, top or the float of groove, connecting rod The opening of upper-end part of driving be positioned at groove, groove is outer or flushes with groove opening down, connecting rod lower end is let out through bottom Discharge orifice stretches out below the bottom of lower float chamber, and connecting rod lower ending opening is positioned at and connects juice container, the one end, exhaust passage in connecting rod Connect with space in groove, the other end with connect juice container in space connect；

Or

5., the bottom of described float for flushing shape, convex arc shape or concave arc shape, connecting rod is hollow shape, inside has Exhaust passage, small end is connected with float, and the upper end open of connecting rod is positioned at the bottom part down of float, small end opening Spacing is left with the bottom of float；Connecting rod lower ending opening is positioned at outside the outer wall of cavity and connects with connecing juice container space, Or connecting rod lower end is stretched out below the bottom of lower float chamber through bottom drain hole, and connecting rod lower ending opening is positioned at and connects juice container, One end, exhaust passage in connecting rod connects with float bottom space, the other end with connect juice container in space connect；

Or

6., described float connect as one with lower float, inside have exhaust passage, exhaust passage is at float surface or table Top, face has opening, opening part to have check valve, and the fluid circulating direction that check valve allows is to flow to cavity in connecing juice container； The lower ending opening of exhaust passage is positioned at outside the outer wall of cavity and connects with connecing juice container space；

Or

7., described float connect as one with lower float, inside have exhaust passage, exhaust passage is at float surface or table Top, face has opening, opening part to have check valve, and the fluid circulating direction that check valve allows is to flow to cavity in connecing juice container； Lower float afterbody stretches out below the bottom of lower float chamber through bottom drain hole, and the lower ending opening of exhaust passage is positioned at and connects juice appearance In device and with connect juice container in space connect；Preferably, lower float tail diameter is less, and the afterbody that this diameter is less passes Bottom drain hole is stretched out below the bottom of lower float chamber；

Or

8., described float connect as one with lower float, inside have exhaust passage；Exhaust passage has down at float bottom Opening or exhaust passage have opening in lower float top position side-walls；The lower ending opening of exhaust passage is positioned at outside cavity Outside wall and with connect juice container in space connect；

Or

9., described float connect as one with lower float, inside have exhaust passage；Exhaust passage has down at float bottom Opening or exhaust passage have opening in lower float top position side-walls；Under lower float afterbody stretches out through bottom drain hole Below the bottom of float chamber, the lower ending opening of exhaust passage is positioned at and connects juice container and connect with connecing juice container space；Excellent Selection of land, lower float tail diameter is less, and the afterbody that this diameter is less stretches out through bottom drain hole under the bottom of lower float chamber Face.

The automatic-sealed of the vacuum juicer that the present invention provides connects juice container and includes connecing juice container, sealing lid and buoyancy valve dress Put；Wherein seal lid and be arranged on the opening part of upper end or the side wall upper part connecing juice container；Connect on top or the sidewall of juice container Portion or sealing cover and are formed with cavity；Cavity is completely or partially recessed in and connects in juice container, or the sidewall of cavity is whole Or part protrudes from and connects outside juice container, or whole bottoms of cavity and whole sidewall protrude from and connect outside juice container, or recessed Section bottom and whole sidewall in chamber protrude from and connect outside juice container；It is formed with inlet on the bottom of cavity or sidewall, its External port is for being tightly connected directly or by the juice opening of connection pipe fitting with vacuum juicer；Floating valve door gear includes recessed Chamber, inlet and float；Wherein float is arranged on the inside of cavity.

The automatic-sealed of the vacuum juicer that the present invention provides connects juice container and has the advantages that in vacuum juicer true Make fruit juice flow in vacuum environment when empty juice processed and originally connect in juice container, automatic-sealed again after juice processed, the most permissible Make consumer fruit juice can be preserved in a vacuum a period of time after vacuum juice, then drink.Feature be overall process be true Empty juice processed, vacuum automatically save, it is not necessary to manual operation and not with air contact.

Accompanying drawing explanation

The automatic-sealed of the vacuum juicer that Fig. 1 provides for the embodiment of the present invention 1 connects juice structure of container schematic diagram.

Fig. 2 connects juice structure of container for the automatic-sealed with the vacuum juicer of cavity lid that the embodiment of the present invention 1 provides and shows It is intended to.

The automatic-sealed of the vacuum juicer that Fig. 3 provides for the embodiment of the present invention 2 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Fig. 4 provides for the embodiment of the present invention 3 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Fig. 5, Fig. 6 provide for the embodiment of the present invention 4 connects two kinds of different structures in juice container Sealing lid schematic diagram.

The automatic-sealed of the vacuum juicer that Fig. 7 provides for the embodiment of the present invention 5 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Fig. 8 provides for the embodiment of the present invention 6 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Fig. 9 provides for the embodiment of the present invention 7 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Figure 10 provides for the embodiment of the present invention 8 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Figure 11 provides for the embodiment of the present invention 9 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Figure 12 provides for the embodiment of the present invention 10 connects juice structure of container schematic diagram.

The automatic-sealed of the vacuum juicer that Figure 13 provides for the embodiment of the present invention 11 connects juice structure of container schematic diagram.

Detailed description of the invention

With specific embodiment, the automatic-sealed of the vacuum juicer that the present invention provides is connect juice container below in conjunction with the accompanying drawings to carry out in detail Describe in detail bright.

Embodiment 1:

As it is shown in figure 1, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container includes connecing juice container 1, close Capping 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects juice container 1 Opening part, and both junctions are provided with sealing ring 3；Sealing and be formed with cavity 4 on lid 2, cavity 4 is recessed in and connects juice appearance In device 1, the external port of cavity 4 is tightly connected with the juice opening 5 of vacuum juicer, and bottom is formed with inlet 6.Buoyancy Valving is made up of cavity 4, inlet 6, float 7, and float 7 is arranged on the inside of cavity 4.Float 7 is at cavity Being free state in 4, it can lean on gravity in its natural state or connect the suction function within juice container 1 and block inlet 6, And connect juice container 1 inside and outside without pressure reduction or pressure reduction small time, in fruit juice can in buoyancy under float and release right The closure of inlet 6.

As in figure 2 it is shown, as an improved structure of the present embodiment, described automatic-sealed connects juice container and also includes one Being arranged on the cavity lid 13 at cavity 4 external port, the middle part of cavity lid 13 is formed mutual with vacuum juicer juice opening 5 The connector 16 of coupling, for connecting the juice opening 5 of vacuum juicer.

Described float 7 is spherical, elliposoidal, wedge shape, taper, cylinder, the flat bodily form or Else Rule/irregular Shape and structure；The bottom of cavity 4 is concave arc shape, plane or Else Rule/irregularly shaped, preferably and float 7 (such as float 7 bottom surface is convex arch shape to the shape that bottom shape is mutually matched, then for radian coupling bottom cavity 4 Concave arc shape).Float 7 as hollow closed structure (such as hollow float or hollow cubic body) or by foam plastics, The density that the foam/sponge-like material such as foam rubber, (closed pore) sponge are made, less than " float " of water, allows it to Swim on the water surface under the buoyancy that fruit juice produces.Float 7 surface is rigidity, elastic or flexible, preferably bullet Property or flexibility, preferably to carry out sealing blocking to inlet 6.

The automatic-sealed of the vacuum juicer now provided by the present embodiment connects juice container work principle and is described below: first during use First the juice opening 5 of the connector 16 in the external port of cavity 4 or cavity lid 13 with vacuum juicer is tightly connected.Very After empty fruit juice mixer starts, under the effect of electronic air extracting pump or air extractor, first it is evacuated inside vacuum juicer, enters And make this automatic-sealed connect the inside and outside pressure reduction that produces of juice container so that float 7 be raised above under differential pressure action and from Open inlet 6, then connect juice container 1 inside and be also evacuated；Treat that vacuum juicer and automatic-sealed connect within juice container After pressure balance, float 7 falls back to the bottom of cavity 4 under gravity and again blocks inlet 6.At this moment vacuum fruit juice Machine starts according to its program making fruit juice, and wait the fruit juice prepared after juice opening 5 flows into cavity 4 inside, float 7 is fruit Floating under the buoyancy of juice, at this moment fruit juice will be flowed into by inlet 6 and connect in juice container 1, and fruit juice flows into and connects juice container 1 After, the fruit juice in cavity 4 is not enough so that float 7 floats, and float 7 blocks inlet 6 under gravity, the most very Empty fruit juice mixer is shut down；Now may utilize vacuum juicer self relief valve release vacuum state (or, on cavity lid 13 Also having the Manual air-release valves not shown in Fig. 2, this vent valve runs through the wall of cavity lid 13.Now open Manual air-release valves, The space making cavity 4 communicates with air, releases the vacuum state in vacuum juicer and cavity 4), but due to float 7 Inlet 6 is blocked, so in connecing juice container 1 still for vacuum state (and because now in vacuum juicer Releasing vacuum is normal pressure, and is negative pressure of vacuum in connecing juice container 1, so this pressure differential makes float 7 tightly block further Inlet 6), at this moment can open the connector on vacuum juicer juice opening 5 and the external port of cavity 4 or cavity lid 13 Being tightly connected between 16, connects the vacuum state within juice container 1 without destroying so that it is internal fruit juice is able to vacuum Preserve, thus can drink for user after the regular hour.

Time user needs to drink, first move float 7 with hands and make it offset inlet 6, thus release float 7 to entering The sealing of liquid mouth 6, then it is that is drinkable to open sealing lid 2.Alternatively, also with the component of similar handle on float 7, Move with hands to facilitate.

In the present embodiment, cavity 4 is equivalent to " valve body " of floating valve door gear, and float 7 is i.e. that " float " also has concurrently " spool " acts on, and inlet 6 is equivalent to " outlet " of floating valve door gear, the external port of cavity 4 or cavity lid 13 Connector 16 have concurrently floating valve door gear " import " effect.The external port of cavity 4 also can also is that by connecting pipe fitting (not shown in Fig. 1, Fig. 2) is tightly connected with the juice opening 5 of vacuum juicer.

Alternatively, the sidewall or the sealing that connect juice container 1 are covered and are also had bleeding point (Fig. 1, Fig. 2 are not shown) on 2；Bleeding point Place is provided with valve, and described valve is check valve.

Alternatively, the described sidewall connecing juice container 1 or seal lid 2 on be also provided with air pressure display device (Fig. 1, Fig. 2 is not shown).Air pressure display device is mechanical type air-pressure gage or electronic type air gauge；

The baroceptor of air pressure display device is located at and connects in juice container 1, seals below lid 2, and its display is located at sealing Cover on 2 or connect on juice container 1 sidewall；

Mechanical type air-pressure gage is pointer-type air gauge, and including baroceptor and pointer header, baroceptor is located at and connects Below juice container 1 inside sidewalls, sealing lid 2 (connecing inside juice container 1), pointer header is located at and connects juice container 1 side On wall or sealing lid 2；

Can also arrange pressure tap connecing on juice container 1 sidewall or sealing on lid 2, pressure tap is blocked by elastic film, very When idling pressure, elastic film caves inward, and connects the negative pressure state in juice container with this simple displaying.

Electronic type air gauge includes baroceptor, battery, testing circuit and optical display or auditory tone cues device, each portion / it is electrical connection, baroceptor is arranged on and connects juice container 1 inside sidewalls, seals and (connect juice container 1 below lid 2 Inner side), battery is arranged on to connect on juice container or seal and covers, and testing circuit is arranged on control circuit board, and optics shows Device is arranged on and connects on juice container 1 sidewall, seals on lid 2, and auditory tone cues device is located on control circuit board.

It addition, the juice opening 5 of connector 16 on the external port of described cavity 4 or cavity lid 13 and vacuum juicer Between be tightly connected for threaded, snap connection, interference connection or magnetic connect in one.Wherein magnetic connection is Connector 16 at least one place on the external port of cavity 4, the juice opening 5 of vacuum juicer or cavity lid 13 is arranged forever Magnet or electromagnet, arrange the permanent magnet that ferromagnetism adhesive part, electromagnet or magnetic pole are contrary at corresponding another simultaneously； It is arranged on the electromagnet at vacuum juicer juice opening 5 to electrically connect with the control circuit plate of vacuum juicer；It is arranged on cavity 4 In upper port or cavity lid 13 electromagnet at connector 16 be arranged in automatic airtight connects juice container or seal in lid Battery connects.

Embodiment 2:

As it is shown on figure 3, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container includes connecing juice container 1, close Capping 2 and floating valve door gear；Wherein connect juice container 1, to seal lid 2 identical with above-described embodiment 1；Floating valve door gear Being made up of cavity 4, inlet 6, float 7, float 7 is arranged on the inside of cavity 4.Difference with embodiment 1 It is pull bar big with the thin afterbody in centre below float 7 or T-bar 8.

T-bar 8 is made up of end bar 9 and pull bar 10, and pull bar 10 one end is connected with float 7, and the other end is with end bar 9 even Connect；In the middle part of pull bar 10, at least part of diameter is less than the diameter of inlet 6, and this part runs through inlet 6, on it Diameter is less than the gap between part and the inlet 6 of inlet 6 as fluid passage；End bar 9 is positioned at and connects juice appearance The inside of device 1, and length is more than the diameter of inlet 6；When float 7 under gravity or differential pressure action to inlet When 6 direction motion, on available float 7 itself or pull bar 10, diameter is more than the position of inlet 6 by feed liquor Mouth 6 closure；

It is substantially the same manner as Example 1, no that the automatic-sealed of the vacuum juicer that the present embodiment provides connects juice container work principle Be available T-bar 8 float 7 is retrained (if the position diameter near float 7 on pull bar 10 be more than into Liquid mouth 6, then can also utilize this position to block inlet 6), with prevent its deviation inlet 6 excessive and cannot Reset.

At least part of diameter in pull bar (not shown in Fig. 3) middle part that middle thin afterbody is big less than inlet 6 and passes through Wearing inlet 6, on it, diameter is less than the gap between position and the inlet 6 of inlet 6 as fluid passage； (effect of this pull bar afterbody is identical with the end bar 9 of above-mentioned T-bar 8, is all more than inlet 6 for this pull bar afterbody Preventing float 7 from deviateing, inlet 6 is excessive cannot reset.So pull bar tail shape is not limited, as long as greatly In inlet 6)；When float 7 moves to inlet 6 direction under gravity or differential pressure action time, can Diameter on float 7 itself or described pull bar is utilized to be blocked by inlet 6 more than the position of inlet 6.T-bar 8 special cases being really " pull bar that middle thin afterbody is big ".

Embodiment 3:

As shown in Figure 4, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container and includes connecing juice container 1, close Capping 2 and floating valve door gear；The side wherein connecing juice container 1 top is formed with opening, seals lid 2 and is fastened on opening Place；Connecing juice container 1 top opposite side and be formed with cavity 4, the external port of cavity 4 seals with the juice opening 5 of vacuum juicer Connecting, bottom is formed with inlet 6；Floating valve door gear is made up of cavity 4, inlet 6, float 7, and float 7 sets Put the inside at cavity 4.

It is same as in Example 1 that the automatic-sealed of the vacuum juicer that the present embodiment provides connects juice container work principle, the most recessed Chamber 4 position is set at the top connecing juice container 1, the most no longer repeat.

Embodiment 4:

The automatic-sealed of the vacuum juicer that the present embodiment provides connects sealing lid 2 and floating valve door gear in juice container and uses such as The respective outer side edges of lower form uses:

As it is shown in figure 5, the described cavity 4 formed on lid 2 that seals is cuboid, bottom is formed with inlet 6； Floating valve door gear is made up of cavity 4, inlet 6, float 7, connecting rod 11 and conical plug 12；Float 7, connection Bar 11 and conical plug 12 are provided entirely in the inside of cavity 4；The two ends of connecting rod 11 are connected to float 7 and taper On the end face of plug 12, and the taper seat of conical plug 12 can block inlet 6 under the effect of gravity or pressure reduction.

As shown in Figure 6, the described cavity 4 formed on lid 2 that seals is cuboid, is on sidewall to be formed at difference There is inlet 6；Floating valve door gear also includes centre big the drawing of thin afterbody being connected to conical plug 12 (below) below Bar or T-bar.

In the middle part of the pull bar that middle thin afterbody is big, at least part of diameter runs through feed liquor less than inlet 6 and this position Mouth 6, on it, diameter is less than the gap between position and the inlet 6 of inlet 6 as fluid passage；This pull bar Afterbody is more than inlet 6, and the shape of this afterbody can be spheroidal, truncated cone-shaped or other arbitrary shape, its effect It is to prevent conical plug 12 from coming off when cleaning；The taper seat of conical plug 12 can block under gravity or differential pressure action Live inlet 6.

T-bar is by holding bar 9 and pull bar 10 to constitute, and pull bar 10 one end is connected with conical plug 12, and the other end is with end bar 9 even Connect；In the middle part of pull bar 10, at least part of diameter is less than the diameter of inlet 6, and this part runs through inlet 6, on it Diameter is less than the gap between position and the inlet 6 of inlet 6 as fluid passage；End bar 9 is positioned at and connects juice appearance The inside of device 1, and length is more than the diameter of inlet 6；The taper seat of conical plug 12 can be made at gravity or pressure reduction Inlet 6 is blocked under with.A kind of special case of T-bar really " pull bar that middle thin afterbody is big ".

The automatic-sealed being provided with above-mentioned sealing lid 2 and floating valve door gear connects juice container work principle and above-described embodiment phase With, the most no longer repeat.

Embodiment 5

Include connecing juice container 1, sealing as it is shown in fig. 7, the automatic-sealed of the vacuum juicer of the present embodiment offer connects juice container Lid 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects opening of juice container 1 At Kou, and both junctions are provided with sealing ring 3；Sealing and be formed with cavity 4 on lid 2, cavity 4 is recessed in and connects juice container In 1, the external port of cavity 4 is tightly connected with the juice opening 5 of vacuum juicer, and bottom is formed with inlet 6；Floating valve Door gear is made up of float 7, cavity 4, inlet 6, lower float chamber 18, lower float 17 and connecting rod 21.Float 7 sets Put the inside at cavity 4；The upper end of lower float chamber 18 is fixedly or removably connected to be positioned at the cavity outside inlet 6 On outside 4 outer walls, an at least discharge orifice bottom it and/or on sidewall；Lower float 17 is arranged in lower float chamber 18； The two ends of connecting rod 21 are connected with lower float 17 and float 7 respectively.

Discharge orifice on lower float chamber 18 includes bottom drain hole 19 and sidewall discharge orifice 20；Wherein sidewall discharge orifice 20 It is divided into and is positioned at the top position of sidewall and is positioned at sidewall two kinds of position on the lower, be preferably located at the top position of sidewall.

It addition, gross area inlet 6 net area of bottom drain hole 19 and the sidewall discharge orifice 20 being positioned against lower portion (inlet 6 net areas=inlet 6 area deducts the area after connecting rod or other component occupied area), so can make The bottom drain hole 19 of lower float chamber 18 and the sidewall discharge orifice 20 at sidewall position on the lower flow out the speed of fruit juice less than passing through Inlet 6 flows into the speed of fruit juice, so that fruit juice is from inlet 6 flows into after float chamber 18, and some fruit juice Can stagnant deposit therein, so that lower float 17 can float up under the effect of buoyancy.

Additionally, sidewall discharge orifice 20 area being positioned against upper bit so can be able to make down more than the net area of inlet 6 Can quickly flow out time in float chamber 18, fruit juice is too much.

Lower float chamber 18 is preferably drag cup shape, and it is connected with fixing/removably with cavity 4 outer surface.

It addition, connecting rod 21 is the thicker reducing bar of straight-bar or top, on connecting rod 21, at least part of diameter is less than feed liquor Mouth 6 diameters.Being H from cavity 4 inwall to lower float chamber 18 inner bottom part height, the wall thickness of cavity 4 is H1, lower float 17 height own are H2, a length of H3 of connecting rod 21, then H1+H2+H3 H.If H is 3 centimetres, H1 is 0.3 centimetre, H2 is 0.7 centimetre, and H3 is 1 centimetre, time so that there is no liquid in lower float chamber 18, and float 7 can automatically fall off, and thus rely on float 7 itself or thicker part position, connecting rod 21 top to block inlet 6.

The effect arranging lower float chamber 18 and lower float 17 in the present embodiment is: when only with float 7 when, Float 7 can be made to rise in fruit juice flows into cavity 4 and when influx is abundant, thus open inlet 6, make fruit juice flow into Connect in juice container 1.But when fruit juice will fully flow into connect juice container 1 time because the fruit juice in cavity 4 very little, Buoyancy is the least, not enough so that float 7 floats, thus when causing there remains a small amount of fruit juice in cavity 4, float 7 is just Fall and blocked inlet 6 so that in cavity 4, remaining a small amount of liquid juice cannot all flow into and connect juice container 1 In.And after with lower float chamber 18 and lower float 17, owing to the fruit juice deposited stagnant in lower float chamber 18 can make lower float 17 Float, thus top is to float 7 so that it is delayed a little time falls the most completely and blocks inlet 6, residual in making cavity 4 Remaining fruit juice can have the time to fully flow into connect in juice container 1.

The automatic-sealed of the vacuum juicer that the present embodiment provides connects juice container and waits in use, first by cavity 4 external port Connect with vacuum juicer juice opening 5, after vacuum juicer starts, be first evacuated inside vacuum juicer, and then make Must connect juice container 1 inside and outside generation pressure reduction, result makes float 7 be raised above under the effect of pressure reduction, connects in juice container 1 It is evacuated；Further, prepare fruit juice in vacuum juicer to flow out from juice opening 5, enter in cavity 4 so that floating The buoyancy force that son 7 is produced by fruit juice again, fruit juice flows into lower float chamber 18 by inlet 6 then, then by floating downward Bottom drain hole, seed cell 18 19 and/or sidewall discharge orifice 20 flow into and connect bottom juice container 1.

Because bottom drain hole 19 and/or be positioned at the gross area of sidewall discharge orifice 20 at sidewall position on the lower less than inlet 6 Net area, so that in lower float chamber 18, (especially lower position) is the most delayed has a part of fruit juice, this fruit juice carries The buoyancy of confession can make lower float 17 rise, and (meanwhile, sidewall discharge orifice 20 area at the top position of lower float chamber 18 sidewall is relatively Greatly, time this makes fruit juice in lower float chamber 18 more, fruit juice can be quick by greater area of sidewall discharge orifice 20 Inflow connects in juice container 1).The fruit juice that vacuum juicer makes close to fully flowing into after automatic-sealed connects juice container 1, this Time just make cavity 4 in remaining fruit juice not enough so that float 7 floats, but in lower float chamber 18, (lower portion) is still Having liquid juice, lower float 17 is risen this fruit juice and (by connecting rod 21 or direct jack-up), jack-up is floated further Son 7, makes float 7 can not block inlet 6, enables fruit juice remaining in cavity 4 to flow into smoothly and connects in juice container 1； After in cavity 4, fruit juice has all flowed, the fruit juice in lower float chamber 18 slowly flows into also by bottom drain hole 19 and connects juice In container 1, make lower float 17 sink, float 7 also and then sinks, and finally blocks inlet 6 by float 7 bottom, Or by " connecting rod 21 upper diameter is relatively thick, (in the middle part of connecting rod, lower diameter is less than feed liquor more than the position of inlet 6 for diameter Mouth 6) " block inlet 6.

After vacuum juicer is shut down, available vacuum juicer self relief valve releases vacuum state, but now because of float 7 Closure, at inlet 6, so being still vacuum state in connecing juice container 1, opens vacuum juicer juice opening 5 and cavity 4 Being tightly connected of external port, still keeps vacuum in connecing juice container 1, makes fruit juice obtain vacuum and preserves.

It addition, float 7 and lower float 17 be spherical, elliposoidal, wedge shape, taper, cylinder, the flat bodily form or other Rule/irregularly shaped structure, float 7 and lower float 17 are as hollow-core construction (such as hollow float or hollow cubic Body) or the density be made up of foam/sponge-like material such as foam plastics, foam rubber, (closed pore) sponges less than fruit juice (or Water) " float ", allow it to float on fruit juice and produce buoyancy.Float 7, lower float 17 itself can also It is to be fabricated from a flexible material (e.g. ball or foam rubber etc.).Float 7, lower float 17 surface be rigidity, Elastic or flexible, the most elastic or flexible.

It addition, transmit buoyancy simply by connecting rod 21 between lower float 17 and float 7, between three and be not attached to.Also Can also is that and be not provided with connecting rod 21 between float 7 and lower float 17, be the most also not connected to.But at lower float 17 After being floated up by buoyancy, lower float 17 top (diameter is less than inlet 6) can be floated by inlet 6 jack-up Son 7 (or below float 7, have " bar " of protrusion, should " bar " through inlet 6, stretch in lower float chamber 18, Lower float 17 pushes up to after floating and is somebody's turn to do " bar ", and then jack-up float 7).As long as lower float 17 is floating in lower float chamber 18 Inlet 6 jack-up float 7 can be passed through after Qiing.

Embodiment 6

As shown in Figure 8, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container and includes connecing juice container 1, sealing Lid 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects opening of juice container 1 At Kou, and both junctions are provided with sealing ring 3；Sealing and be formed with cavity 4 on lid 2, the upper portion side wall of cavity 4 is protruded Outside connecing juice container 1 (and sealing on lid 2), the external port of cavity 4 seals with the juice opening 5 of vacuum juicer Connecting, bottom is formed with inlet 6；Floating valve door gear is by cavity 4, inlet 6, float 7, lower float chamber 18 and Lower float 17 is constituted.Difference from Example 5 is that float 7, for spheroid-like, is arranged on the inside of cavity 4；Under Float 17 is cylindrical shape, and the inlet 6 that top is directly run through on cavity 4 is connected as a single entity with float 7, the most permissible Save the connecting rod 21 in embodiment 5.

Lower float 17 can also be " the big tail of eel-like figure " shape.The diameter at " big tail " position is more than inlet 6, such energy Enough lower float 17 is avoided to depart from away at inlet 6 when cleaning.

Alternatively, float 7, the lower float 17 connected together can also be " the sub-waist calabash that centre is thin, two is thick " shape (" head " above dumbbell is float 7, and " head " below is lower float 17, dumbbell for shape or " dumbbell " shape The effect of waist is similar to connecting rod 21).

The present embodiment operation principle is same as in Example 5, the most no longer repeats.

Alternatively, the side-walls protruded above on sealing lid 2 at described cavity 4 has Manual air-release valves F, waits when needed, Open this Manual air-release valves and release the vacuum of cavity 4 interior (and in vacuum juicer), but still keep in connecing juice container 1 Vacuum.

Embodiment 7

Include connecing juice container 1, sealing as it is shown in figure 9, the automatic-sealed of the vacuum juicer of the present embodiment offer connects juice container Lid 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects opening of juice container 1 At Kou, and both junctions are provided with sealing ring 3；Sealing and be formed with cavity 4 on lid 2, cavity 4 is recessed in and connects juice container In 1, the external port of cavity 4 is tightly connected with the juice opening 5 of vacuum juicer, and bottom is formed with inlet 6；Floating valve Door gear is made up of float 7, cavity 4, inlet 6, lower float chamber 18, lower float 17 and connecting rod 21.Float 7 sets Put the inside at cavity 4；The upper end of lower float chamber 18 is fixedly or removably connected to be positioned at the cavity outside inlet 6 On outside 4 outer walls, an at least discharge orifice bottom it and/or on sidewall；Lower float 17 is arranged in lower float chamber 18； The two ends of connecting rod 21 are connected with lower float 17 and float 7 respectively.

It addition, connecting rod 21 is the thicker reducing bar of straight-bar or top, on connecting rod 21, at least part of diameter is less than feed liquor Mouth 6 diameters.When not having liquid in lower float chamber 18, float 7 can automatically fall off, and thus relies on float 7 itself Or thicker part position, connecting rod 21 top blocks inlet 6.

The present embodiment difference from Example 5 is: in connecting rod 21 for hollow shape (or: connecting rod 21 is inherently It is a trachea), inside there is exhaust passage 210.

The bottom fluted 71 of described float 7, connecting rod 21 is hollow shape, inside has exhaust passage 210, connecting rod 21 Upper end is positioned at groove 71 (maybe can also be in outside groove 71 or flush with groove 71 opening down), connecting rod 21 Being fixed by the inwall of connector L Yu groove 71 or removably connecting (can also be connecting rod 21 and groove 71 top or floating Son 7 is fixing or removably connects), the opening 211 of the upper-end part of driving of connecting rod 21 is positioned at groove 71 (" upper end " no Must be termination, it is also possible to be that hollow shape connecting rod 21 is positioned at the side-walls of groove 71 and has opening), groove 71 outer or Flushing with groove 71 opening down, it is outside (described " lower end " no that connecting rod 21 lower ending opening is positioned at the outer wall of cavity 4 Must be termination, bottom, it is also possible to be that the side-walls that hollow shape connecting rod 21 is positioned at outside the outer wall of cavity 4 has opening), It is preferably that connecting rod 21 lower end is stretched out the bottom of lower float chamber 18 further (place of passing through is let out bottom i.e. being formed (shown in Fig. 9) Discharge orifice 19.Now the valid circulation area of discharge orifice 19 is that the hole gross area deducts connecting rod 21 cross-sectional area), expose Below bottom lower float chamber 18, and its lower ending opening 212 preferably for " loudspeaker " shape (with preferably avoid fruit juice by This is redirected back in the exhaust passage in hollow shape connecting rod 21) so that the exhaust passage 210 1 in connecting rod 21 End connect with space in groove 71, the other end with connect juice container 1 in space connect.

After the bottom belt fluted 71 of float 7, in time not having fruit juice (or water) in cavity 4, float 7 is made at gravity Will block that (now groove 71 opening down is also crushed on the bottom of cavity 4, and by cavity 4 by inlet 6 with lower Bottom block.Described groove 71 opening down is elastic or rigidity).In time having fruit juice in cavity 4, Float 7 rises under buoyancy, makes inlet 6 open, and also makes groove 71 opening down be positioned at fruit juice liquid level simultaneously Neighbouring (being positioned on liquid level, at liquid level or under liquid level).

In the present embodiment, connecting rod 21 be hollow shape and in have the effect of exhaust passage 210 to be: after vacuum juicer starts, It is evacuated (described above) in connecing juice container 1, reaches vacuum values and be assumed to be-85KPA, connect the appearance of juice container 1 Amass and be assumed to be 1200 milliliters.Fruit juice is flowed into by inlet 6 after connecing in juice container 1, along with the inflow of fruit juice, Connect the remaining space (volume) in juice container 1 more and more less so that connect the gas pressure in juice container 1 gradually Raising (vacuum is gradually lowered), now, connecing the additional air in juice container 1 will be from hollow shape connecting rod 21 Lower ending opening 212 enters in its interior exhaust passage 210, and enters in groove 71 by its upper end open 211 further, Further it is discharged in cavity 4 (now, even if groove 71 opening down is positioned at from groove 71 opening part down Below fruit juice liquid level, then because the horizontal level of this opening is higher than the horizontal level of hollow shape connecting rod 21 lower ending opening 212, Meanwhile, now the air pressure in cavity 4 is also below the air pressure connect in juice container 1, so existing between the two " opening " One pressure differential, this pressure differential makes the air in bleed-off passage 210 can discharge from groove 71 opening part down), And discharged by the electronic air extracting pump of vacuum juicer further.It is unlikely in making to connect juice container 1 because flowing into fruit juice and air pressure Raise, can avoid making because connecing hypertonia in juice container 1 fruit juice can not the problem of smooth and easy inflow, thus ensure that Fruit juice can smoothly flow therein and connect in juice container 1.Connect in juice container 1 when the fruit juice in cavity 4 all flows into, floating Son 7 and lower float 17 fall, and are blocked by inlet 6, thus keep connecing the vacuum in juice container 1.

In the present embodiment, the bottom of described float 7 can also be not have groove 71, is only merely flat shape, recessed Arc shape or convex arc shape, the upper end open 211 of described hollow shape connecting rod 21 is positioned at the bottom part down (upper end of float 7 Opening 211 leaves certain distance or spacing with the bottom of float 7).Connecting rod 21 lower ending opening 212 is positioned at outside cavity 4 Outside wall and with connect juice container 1 in space connect, or lower float chamber is stretched out through bottom drain hole 19 in connecting rod 21 lower end Below the bottom of 18, connecting rod 21 lower ending opening 212 is positioned at and connects juice container 1, the exhaust passage 210 in connecting rod 21 One end connects with float 7 bottom space, the other end with connect juice container 1 in space connect.Equally reach identical or class As effect.

In the present embodiment, the groove of the bottom of described float 7 71 (or the bottom of float 7 does not has groove 71, but Flat shape or convex arc shape etc.), hollow shape connecting rod 21, float 7, bottom etc. the most common structure of cavity 4 Become " check valve ".That is: float 7, hollow shape connecting rod 21, the bottom of cavity 4 are constituted not only Simply floating valve door gear, has the most simultaneously and discharges the effect of additional air in juice container 1 that connects.

Alternatively, lower float chamber 18 can also is that the opening part being fixedly or removably connected to connect juice container 1 covers with sealing (it is stuck between both) between 2, connects juice container 1 medial wall or connect bottom juice container 1.Its function with float downward As seed cell 18 fixes or is detachably connected on cavity 4 outer wall surface or seals below lid 2.

Embodiment 8

As shown in Figure 10, the present embodiment difference from Example 7 is: do not have groove 71, connecting rod 21 in float 7 In be hollow shape (or: a connecting rod 21 inherently trachea), inside have exhaust passage 210, connecting rod 21 is through floating Son 7, and have opening 211 at float 7 surface (upper surface or side surface) or top, surface.Have unidirectional at opening 211 Valve D (for signal in Figure 10), the fluid circulating direction that check valve D allows is: only allow fluid in connecing juice container 1 Flow in cavity 4.

Connecting rod 21 lower ending opening be positioned at the outer wall of cavity 4 outside (described " lower end " is not necessarily termination, bottom, it is also possible to It is that the side-walls that hollow shape connecting rod 21 is positioned at outside the outer wall of cavity 4 has opening), it is preferably even (shown in Figure 10) Bar 21 lower end stretches out the bottom of lower float chamber 18 further, and (place of passing through i.e. forms bottom drain hole 19.Now discharge orifice 19 Valid circulation area be that the hole gross area deducts connecting rod 21 cross-sectional area), expose below bottom lower float chamber 18, And its lower ending opening 212 preferably (connects preferably to avoid fruit juice to be thus redirected back into hollow shape for " loudspeaker " shape In exhaust passage in bar 21), in making exhaust passage 210 in connecting rod 21 and connecing juice container 1, space is interconnected, So that one end, exhaust passage 210 of connecting rod 21 connects with space in cavity 4, the other end with connect space in juice container 1 Connection.

In the present embodiment, connecting rod 21 be hollow shape and in have the effect of exhaust passage 210 to be: after vacuum juicer starts, It is evacuated (described above) in connecing juice container 1, reaches vacuum values and be assumed to be-95KPA, connect the appearance of juice container 1 Amass and be assumed to be 800 milliliters.Fruit juice is flowed into by inlet 6 after connecing in juice container 1, along with the inflow of fruit juice, Connect the remaining space (volume) in juice container 1 more and more less so that connect the gas pressure in juice container 1 gradually Raising (vacuum is gradually lowered), now, connecing the additional air in juice container 1 will be from hollow shape connecting rod 21 Lower ending opening 212 enters in its interior exhaust passage 210, makes to be positioned at the opening 211 of the connecting rod 21 at float 7 upper surface The check valve D at place opens, and additional air further flows in cavity 4, and is discharged by the electronic air extracting pump of vacuum juicer. It is unlikely in making to connect juice container 1 to raise because flowing into fruit juice and air pressure, can avoid because connecing hypertonia in juice container 1 Make fruit juice can not the problem of smooth and easy inflow, thus ensure that fruit juice can smoothly flow therein and connect in juice container 1.When recessed Fruit juice in chamber 4 all flows into and connects in juice container 1, and float 7 and lower float 17 fall, and are blocked by inlet 6； When the air pressure in cavity 4 is equal with the air pressure connect in juice container 1 time, check valve D is automatically switched off, thus protects Hold the vacuum connect in juice container 1.

Embodiment 9

As shown in figure 11, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container and includes connecing juice container 1, close Capping 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects juice container 1 Opening part, and both junctions are provided with sealing ring 3；Seal be formed on lid 2 cavity 4 (in the present embodiment, cavity 4 External diameter substantially the most identical with connecing juice container 1 external diameter.I.e. sealing on lid 2 and be formed integrally with cavity 4, cavity 4 is to cover connecing The opening part of juice container 1), the upper portion side wall of cavity 4 is protruded outside connecing juice container 1, and the external port of cavity 4 is with true The juice opening 5 of empty fruit juice mixer is tightly connected, and bottom is formed with inlet 6；Floating valve door gear by cavity 4, inlet 6, Float 7, lower float chamber 18 and lower float 17 are constituted.Float 7 is spheroid-like, is arranged on the inside of cavity 4；Float downward Son 17 is cylindrical shape, and the inlet 6 that top is directly run through on cavity 4 is connected as a single entity with float 7.Lower float chamber 18 It is connected in the outer wall surface of cavity 4.

Being hollow shape in float 7 and lower float 17, inside have exhaust passage 210, exhaust passage 210 is on float 7 surface Opening 211 is arranged at place's (upper surface or side surface) or top, surface.Check valve D (for signal in Figure 11) is had at opening 211, The fluid circulating direction that check valve D allows is: only allow fluid to flow in cavity 4 in connecing juice container 1.

The afterbody (preferably this tail diameter is less) of lower float 17 is through the bottom (place of passing through the i.e. shape of lower float chamber 18 Become bottom drain hole 19.Now the valid circulation area of discharge orifice 19 is that the hole gross area deducts lower float 17 afterbody cross section Area), expose below bottom lower float chamber 18, its lower ending opening 212 is positioned at and connects juice container 1.So that row Gas passage 210 one end connects with space in cavity 4, the other end with connect juice container 1 in space connect.

In the present embodiment, in float 7 and lower float 17 for hollow shape and in have the effect of exhaust passage 210 to be: vacuum After fruit juice mixer starts, it is evacuated (described above) in connecing juice container 1, reaches vacuum values and be assumed to be-92KPA, connect The volume of juice container 1 is assumed to be 900 milliliters.Fruit juice is flowed into by inlet 6 after connecing in juice container 1, along with The inflow of fruit juice, connects the remaining space (volume) in juice container 1 more and more less so that connect in juice container 1 Gas pressure gradually rises (vacuum is gradually lowered), and now, connecing the additional air in juice container 1 will be from row The lower ending opening 212 of gas passage 210 enters in it, makes to be positioned at the check valve D at the opening 211 at float 7 upper surface Opening, additional air further flows in cavity 4, and is discharged by the electronic air extracting pump of vacuum juicer.Make to connect juice to hold It is unlikely in device 1 to raise because flowing into fruit juice and air pressure, can avoid making because connecing hypertonia in juice container 1 fruit juice can not The problem of smooth and easy inflow, thus ensure that fruit juice can smoothly flow therein and connect in juice container 1.Fruit in cavity 4 Juice all flows into and connects in juice container 1, and float 7 and lower float 17 fall, and are blocked by inlet 6；When cavity 4 Time interior air pressure is equal with the air pressure connect in juice container 1, check valve D is automatically switched off, thus keeps connecing juice and hold Vacuum in device 1.

Alternatively, the sidewall of described cavity 4 or cavity lid 13 also has bleeding point C；It is preferably provided with valve at bleeding point C (not shown in Figure 11), described valve is that (circulating direction of check valve is check valve: only allow fluid in cavity 4 Flow to outside cavity 4).The sidewall of described cavity 4 preferably completely or partially protrudes from and connects outside juice container 1, this side There is bleeding point on wall, at bleeding point, be preferably provided with check valve.

Embodiment 10

As shown in figure 12, the automatic-sealed of vacuum juicer that the present embodiment provides connects juice container and includes connecing juice container 1, close Capping 2 and floating valve door gear；There is opening the upper end wherein connecing juice container 1；Sealing lid 2 is arranged on and connects juice container 1 Opening part, and both junctions are provided with sealing ring 3；Sealing and be formed with cavity 4 on lid 2, the upper portion side wall of cavity 4 is convex Going out outside connecing juice container 1, the external port of cavity 4 is tightly connected with the juice opening 5 of vacuum juicer, and bottom is formed Inlet 6；Floating valve door gear is made up of cavity 4, inlet 6, float 7, lower float chamber 18 and lower float 17. Float 7 is spheroid-like, is arranged on the inside of cavity 4；Lower float 17 is cylindrical shape, and cavity is directly run through on top Inlet 6 on 4 is connected as a single entity with float 7.Lower float chamber 18 is connected in the outer wall surface of cavity 4.

It is hollow shape in lower float 17 (and/or float 7), inside has exhaust passage 210, exhaust passage 210 floating downward Son 17 top position side-walls have opening 211, and (when having fruit juice in lower float chamber 18, lower float 17 is under buoyancy Rise, make this opening 211 connect with space in cavity 4).

The afterbody (preferably this tail diameter is less) of lower float 17 is through the bottom (place of passing through the i.e. shape of lower float chamber 18 Become bottom drain hole 19.Now the valid circulation area of discharge orifice 19 is that the hole gross area deducts lower float 17 afterbody cross section Area), expose below bottom lower float chamber 18, its lower ending opening 212 be positioned at connect juice container 1 and with connect juice container Space connection in 1.

In the present embodiment, in lower float 17 for hollow shape and in have the effect of exhaust passage 210 to be: vacuum juicer opens After Dong, in connecing juice container 1, it is evacuated (described above), reaches vacuum values and be assumed to be-92KPA, connect juice container 1 Volume be assumed to be 900 milliliters.After fruit juice flows into cavity 4, float 7 and lower float 17 is first made to float (rise), Make to be positioned at lower float 17 top position side-walls opening 211 to be exposed to cavity 4 and (make exhaust passage 210 by cavity simultaneously The space of 4 connects with connecing juice container 1 space), also make inlet 6 open, make fruit juice pass through inlet 6 inflow and connect In juice container 1, along with the inflow of fruit juice, connect the remaining space (volume) in juice container 1 more and more less, but Owing to the space of cavity 4 is connected by exhaust passage 210 with connecing juice container 1 space so that connect in juice container 1 is unnecessary Air enters in it from the lower ending opening 212 of exhaust passage 210, further flows in cavity 4 by opening 211, And discharged by the electronic air extracting pump of vacuum juicer.It is unlikely to because flowing into fruit juice and air pressure rising in making to connect juice container 1, Can avoid making because connecing hypertonia in juice container 1 fruit juice can not the problem of smooth and easy inflow, thus ensure that fruit juice Can smoothly flow therein and connect in juice container 1.Connect in juice container 1 when the fruit juice in cavity 4 all flows into, float 7 And lower float 17 falls, inlet 6 is blocked (now, though lower float 17 top position side-walls opening 211 Do not blocked, then because the position of opening 211 is in connecing juice container 1, so not affecting float 7 end Portion's closure to inlet 6), thus keep connecing the vacuum in juice container 1.

Or, in the present embodiment, it is all hollow shape in float 7 and lower float 17, inside has exhaust passage 210.Aerofluxus Passage 210 has opening 211 (not shown in Figure 12) down bottom float 7, when do not have in cavity 4 fruit juice (or Water) time, float 7 will block that (now exhaust passage 210 is bottom float 7 by inlet 6 under gravity Opening 211 down is also crushed on the bottom of cavity 4).In time having fruit juice in cavity 4, float 7 is in buoyancy Lower rise, makes inlet 6 open, also make simultaneously opening 211 down be positioned near fruit juice liquid level (be positioned on liquid level, At liquid level or under liquid level).Equally play and discharge the effect of additional air in juice container 1 that connects.

Embodiment 11

As shown in figure 13, the present embodiment difference from Example 5 is: cavity 4 is recessed in the portion connect in juice container 1 The bottom or the cavity 4 that divide are recessed on the sidewall of the part connect in juice container 1 and have through hole, and there is check valve D (figure this through hole For signal in 13), the circulating direction of the fluid that described check valve D is allowed is to flow to connect juice container in connecing juice container 1 Outside 1 (in cavity 4).

Its effect is: after vacuum juicer starts, be evacuated (described above), reach vacuum values in connecing juice container 1 Being assumed to be-90KPA, the volume connecing juice container 1 is assumed to be 1000 milliliters.Fruit juice is flowed into by inlet 6 and connects juice After in container 1, along with the inflow of fruit juice, connect the remaining space (volume) in juice container 1 more and more less, Make to connect the gas pressure in juice container 1 and gradually rise (vacuum is gradually lowered), in connecing juice container 1 Time pressure is higher than the pressure in vacuum juicer, check valve D opens, and makes the gas connecing in juice container 1 enter In vacuum juicer (further by electric air exhaust pumped), can avoid because connecing hypertonia in juice container 1 And make fruit juice can not the problem of smooth and easy inflow, thus ensure that fruit juice can smoothly flow therein and connect in juice container 1.When When connecing gas pressure in juice container 1 equal to or less than pressure in vacuum juicer, then this check valve closes automatically Close, thus keep vacuum.Check valve can be that " I-shaped valve is (only for normally used silica gel in existing vacuum fresh-keeping pot Permission gas unidirectional circulates, the most then be automatically switched off) " or the check valve etc. of other prior art.

Described check valve D can also is that be arranged on connect the top of juice container 1 or sidewall, sealing lid 2, cavity lid 13, The bottom of cavity 4 or the sidewall of cavity 4.

When described check valve D is provided in connecing the top of juice container 1 or sidewall, sealing lid 2, cavity lid 13 etc. When position, because the other end of check valve is connection atmospheric environment, must be that to connect the air pressure in juice container 1 big In atmospheric environment air pressure time, check valve D could open.

Alternatively, described sealing also sets on lid 2, at the external port of cavity 4 or at the connector 16 of cavity lid 13 Protected lid (the two connects in any one mode in screw thread, buckle, magnetic or interference), in order to go out to carry and Store.Protection cap is the most not shown.

Alternatively, described protection cap the structure (or device) that can be pressed against float 7 and/or check valve D is arranged below, After on described protection cap lid, it is pressed against float 7 or check valve, so that it fixes (can not open or the most active), with When avoiding carrying or rocking, automatic-sealed connects the fruit juice outflow within juice container.Specifically one of employing having structure form:

1., the bottom surface of protection cap be flat shape, concave arc shape or convex arc shape, the height of float 7 upper end is sufficiently high, After on protection cap lid, protection cap bottom surface is pressed against float and/or check valve naturally, makes float fix after being compressed The most active, make check valve can not open after being compressed；

Or

2., be provided with downwardly projecting projection below the bottom surface of protection cap, on protection cap lid after, protection cap bottom surface The protruding of lower section is pressed against float and/or check valve naturally, makes float fix after being compressed the most active, makes check valve be supported Can not open after pressure.

Alternatively, whole bottoms and whole sidewall of described cavity 4 protrude from and connect outside juice container 1, or the portion of cavity 4 Bottom and whole sidewall is divided to protrude from and connect outside juice container 1.It still can reach function of the present invention and effect.

Claims

1. the automatic-sealed of a vacuum juicer connects juice container, it is characterised in that: it include connecing juice container (1), Seal lid (2) and floating valve door gear；Wherein seal lid (2) and be arranged on upper end or the side wall upper part connecing juice container (1) Opening part；Connect the top of juice container (1) or side wall upper part or seal and be formed with cavity (4) on lid (2)；Recessed Chamber (4) is completely or partially recessed in and connects in juice container (1), or the sidewall of cavity (4) completely or partially protrudes from and connects juice Outside container (1)；Being formed with inlet (6) on the bottom of cavity (4) or sidewall, its external port is for direct or logical Cross and connect the juice opening (5) of pipe fitting and vacuum juicer and be tightly connected；Floating valve door gear includes cavity (4), feed liquor Mouth (6) and float (7)；Wherein float (7) is arranged on the inside of cavity (4).

The automatic-sealed of vacuum juicer the most according to claim 1 connects juice container, it is characterised in that: described Automatic-sealed connects the cavity lid (13) that juice container also includes being arranged at cavity (4) external port, the upper shape of cavity lid (13) The connector (16) that Cheng Youyu vacuum juicer juice opening (5) is mutually matched.

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute The float (7) stated is below with the big pull bar of the thin afterbody in centre or T-bar (8)；

In the middle part of the pull bar that in the middle of wherein, thin afterbody is big, at least part of diameter less than inlet (6) and runs through feed liquor Mouth (6), on it, diameter is fluid passage less than the gap between position and the inlet (6) of inlet (6)； This pull bar afterbody is more than inlet (6)；

T-bar (8) is made up of end bar (9) and pull bar (10), and pull bar (10) one end is connected, separately with float (7) One end is connected with end bar (9)；The upper at least part of diameter of pull bar (10) is less than the diameter of inlet (6), and is somebody's turn to do Part runs through inlet (6), and on it, diameter is less than the gap between position and the inlet (6) of inlet (6) For fluid passage；End bar (9) is positioned at the inside connecing juice container (1), and length is more than the diameter of inlet (6).

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute The float (7) stated is below with connecting rod (11) and conical plug (12)；Float (7), connecting rod (11) and cone Shape plug (12) is provided entirely in the inside of cavity (4)；The two ends of connecting rod (11) be separately fixed at float (7) and On the end face of conical plug (12), and the taper seat of conical plug (12) can block under gravity or differential pressure action Liquid mouth (6)；Alternatively, described conical plug (12) is further below with the pull bar that the thin afterbody in centre is big.

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute The floating valve door gear stated also includes lower float chamber (18) and lower float (17)；Lower float chamber (18) is fixing or removable It is connected to cavity (4) outer wall surface with unloading or seals the lower section of lid (2), inlet (6) and lower float chamber (18) phase Logical, an at least discharge orifice on lower float chamber (18) bottom and/or sidewall；Lower float (17) is arranged on lower float chamber (18) in；

Annexation between lower float (17) and float 7 is:

1) under, float (17) top is run through inlet (6) and is connected with float (7) or is not connected to；Or

2) float (7) bottom is run through inlet (6) and is connected with lower float (17) or is not connected to；Or

3) under, float (17) is connected by running through the connecting rod (21) of inlet (6) with float (7) or is not connected to.

The automatic-sealed of vacuum juicer the most according to claim 5 connects juice container, it is characterised in that: described Discharge orifice on lower float chamber (18) includes bottom drain hole (19) and sidewall discharge orifice (20)；Wherein sidewall earial drainage Hole (20) is divided into and is positioned at the top position of sidewall and be positioned at sidewall two kinds of position on the lower.

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute The float (7) stated is spherical, elliposoidal, wedge shape, taper, cylindrical or flat body structure；The end of cavity (4) Portion is concave arc shape or plane, the concave arc shape being preferably mutually matched with float (7) bottom shape.

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute Connector (16) in the external port of the cavity (4) stated or cavity lid (13) and the juice opening (5) of vacuum juicer Between be tightly connected for threaded, snap connection, interference connection or magnetic connect in one；Wherein magnetic connects It it is the connector (16) on the external port in cavity (4), the juice opening (5) of vacuum juicer or cavity lid (13) At least one place arranges permanent magnet or electromagnet, arranges ferromagnetism adhesive part, electromagnet or magnetic at corresponding another simultaneously The most contrary permanent magnet；It is arranged on the electromagnet at vacuum juicer juice opening (5) place and the control circuit plate of vacuum juicer Electrical connection；Be arranged on the electromagnet at upper connector (16) place of cavity (4) upper port or cavity lid (13) be arranged on from Battery electrical connection in movable sealing connects juice container or in sealing lid.

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute The cavity (4) stated protrudes above has Manual air-release valves in the side-walls sealed on lid (2) or described cavity lid (13).

The automatic-sealed of vacuum juicer the most according to claim 1 and 2 connects juice container, it is characterised in that: institute State and connect the sidewall of juice container (1) or seal on lid (2) that to have air pressure display device, air pressure display device be mechanical type air pressure Table or electronic type air gauge；The baroceptor of air pressure display device is located at and connects in juice container (1), under sealing lid (2) Side, its display is located at sealing lid (2) and above or connects on juice container (1) sidewall:

Mechanical type air-pressure gage is pointer-type air gauge, and including baroceptor and pointer header, baroceptor is located at and connects Juice container (1) inside sidewalls or sealing lid (2) lower section, pointer header is located at and connects juice container (1) sidewall or seal lid (2) on；

Or it is provided with pressure tap connecing on juice container (1) sidewall or sealing on lid (2), flexible thin film envelope in pressure tap Stifled；

Electronic type air gauge includes baroceptor, battery, testing circuit and optical display or auditory tone cues device, each portion / it is electrical connection, baroceptor is arranged on and connects juice container (1) inside sidewalls or seal lid (2) lower section, battery Being arranged on to connect on juice container or seal and cover, testing circuit is arranged on control circuit board, and optical display is arranged on and connects juice On container (1) sidewall, sealing on lid (2), auditory tone cues device is located on control circuit board.

The automatic-sealed of 11. vacuum juicer according to claim 5 connects juice container, it is characterised in that: described Lower float chamber (18) is fixedly or removably connected to connect the opening part of juice container (1) and seal between lid (2), connect Juice container (1) medial wall or connect juice container (1) bottom.

The automatic-sealed of 12. vacuum juicer according to claim 1 and 2 connects juice container, it is characterised in that: The described top connecing juice container (1) or sidewall, sealing lid (2), the bottom of cavity (4), cavity (4) Sidewall, cavity (4) is recessed in the bottom of the part connect in juice container (1) or cavity (4) is recessed in and connects juice container (1) having through hole on the sidewall of the part in, there are check valve (D), the stream that described check valve (D) is allowed in this through hole The circulating direction of body is to flow to connect outside juice container (1) in connecing juice container (1).

The automatic-sealed of 13. vacuum juicer according to claim 1 and 2 connects juice container, it is characterised in that: institute The sealing lid (2) stated is upper, at the external port of cavity (4) or connector (16) place of cavity lid (13) also sets Protected lid；Preferably, being arranged below of described protection cap can be pressed against float (7) and/or the structure of check valve.

The automatic-sealed of 14. vacuum juicer according to claim 5 connects juice container, it is characterised in that: described Have exhaust passage (210) in connecting rod (21) and/or in float (7) and lower float (17), concrete structure be selected from 1., 2., 3., 4., 5., 6., 7., 8. or 9. in any one:

1., described connecting rod (21) be hollow shape, inside have exhaust passage (210), described connecting rod (21) is through floating Son (7), exhaust passage (210) have opening (211), opening (211) in float (7) surface or top, surface Place has check valve (D), the fluid circulating direction that check valve (D) allows to be to flow to cavity (4) in connecing juice container (1)； The lower ending opening (212) of exhaust passage (210) is positioned at outside the outer wall of cavity (4) and empty with connecing juice container (1) Between connect；

Or

2., described connecting rod (21) be hollow shape, inside have exhaust passage (210), described connecting rod (21) to pass Float (7), exhaust passage (210) have opening (211), opening (211) in float (7) surface or top, surface Place has check valve (D), the fluid circulating direction that check valve (D) allows to be to flow to cavity (4) in connecing juice container (1)； Connecting rod (21) lower end is stretched out below the bottom of lower float chamber (18), under connecting rod (21) through bottom drain hole (19) End opening (212) is positioned at and connects juice container (1) and connect with connecing juice container (1) space；

Or

3., the bottom fluted (71) of described float (7), connecting rod (21) is hollow shape, inside has aerofluxus to lead to Road (210), the upper end of connecting rod (21) is positioned at groove (71), groove (71) outward or with groove (71) down Opening flushes, and connecting rod (21) is connected with inwall, top or the float (7) of groove (71), the upper end of connecting rod (21) The opening (211) at position is positioned at groove (71), groove (71) and outward or flushes with groove (71) opening down, Connecting rod (21) lower ending opening (212) is positioned at outside the outer wall of cavity (4), the exhaust passage (210) in connecting rod (21) One end connects with groove (71) interior space, and the other end connects with connecing juice container (1) interior space；

Or

4., the bottom fluted (71) of described float (7), connecting rod (21) is hollow shape, inside has aerofluxus to lead to Road (210), the upper end of connecting rod (21) is positioned at groove (71), groove (71) outward or with groove (71) down Opening flushes, and connecting rod (21) is connected with inwall, top or the float (7) of groove (71), the upper end of connecting rod (21) The opening (211) at position is positioned at groove (71), groove (71) and outward or flushes with groove (71) opening down, Connecting rod (21) lower end is stretched out below the bottom of lower float chamber (18), under connecting rod (21) through bottom drain hole (19) End opening (212) is positioned at and connects juice container (1), exhaust passage (210) one end in connecting rod (21) and groove (71) Interior space connects, and the other end connects with connecing juice container (1) interior space；

Or

5., the bottom of described float (7) for flushing shape, convex arc shape or concave arc shape, connecting rod (21) is hollow Shape, inside has exhaust passage (210), connecting rod (21) upper end to be connected with float (7), and the upper end of connecting rod (21) is opened Mouth (211) is positioned at the bottom of the bottom part down of float (7), connecting rod (21) upper end open (211) and float (7) Leave spacing；Connecting rod (21) lower ending opening (212) be positioned at outside the outer wall of cavity (4) and with connect juice container (1) Space connects, or connecting rod (21) lower end is stretched out below the bottom of lower float chamber (18) through bottom drain hole (19), Connecting rod (21) lower ending opening (212) is positioned at and connects juice container (1), the exhaust passage (210) in connecting rod (21) One end connects with float (7) bottom space, and the other end connects with connecing juice container (1) interior space；

Or

6., described float (7) connect as one with lower float (17), inside have exhaust passage (210), aerofluxus lead to Road (210) has opening (211), opening (211) place to have check valve (D) in float (7) surface or top, surface, The fluid circulating direction that check valve (D) allows is to flow to cavity (4) in connecing juice container (1)；Exhaust passage (210) Lower ending opening (212) be positioned at outside the outer wall of cavity (4) and connect with connecing juice container (1) space；

Or

7., described float (7) connect as one with lower float (17), inside have exhaust passage (210), aerofluxus lead to Road (210) has opening (211), opening (211) place to have check valve (D) in float (7) surface or top, surface, The fluid circulating direction that check valve (D) allows is to flow to cavity (4) in connecing juice container (1)；Lower float (17) tail Portion stretches out below the bottom of lower float chamber (18) through bottom drain hole (19), and the lower end of exhaust passage (210) is opened Mouth (212) is positioned at and connects juice container (1) and connect with connecing juice container (1) space；Preferably, lower float (17) Tail diameter is less, and the afterbody that this diameter is less stretches out through bottom drain hole (19) under the bottom of lower float chamber (18) Face；

Or

8., described float (7) connect as one with lower float (17), inside have exhaust passage (210)；Aerofluxus is led to Road (210) has opening (211) down or exhaust passage (210) to lean at lower float (17) in float (7) bottom Upper bit side-walls has opening (211)；The lower ending opening (212) of exhaust passage (210) is positioned at outside cavity (4) Connect outside wall and with connecing juice container (1) interior space；

Or

9., described float (7) connect as one with lower float (17), inside have exhaust passage (210)；Aerofluxus is led to Road (210) has opening (211) down or exhaust passage (210) to lean at lower float (17) in float (7) bottom Upper bit side-walls has opening (211)；Lower float (17) afterbody stretches out lower float chamber (18) through bottom drain hole (19) Bottom below, the lower ending opening (212) of exhaust passage (210) be positioned at connect juice container (1) and with connect juice container (1) interior space connection；Preferably, lower float (17) tail diameter is less, and the afterbody that this diameter is less is let out through bottom Discharge orifice (19) stretches out below the bottom of lower float chamber (18).

The automatic-sealed of 15. 1 kinds of vacuum juicer connects juice container, it is characterised in that: it include connecing juice container (1), Seal lid (2) and floating valve door gear；Wherein seal lid (2) and be arranged on upper end or the side wall upper part connecing juice container (1) Opening part；Connect the top of juice container (1) or side wall upper part or seal and be formed with cavity (4) on lid (2)；Recessed Chamber (4) is completely or partially recessed in and connects in juice container (1), or the sidewall of cavity (4) completely or partially protrudes from and connects juice Outside container (1), or whole bottoms of cavity (4) and whole sidewall protrude from and connect outside juice container (1), or cavity (4) section bottom and whole sidewall protrude from and connect outside juice container (1)；Formed on the bottom of cavity (4) or sidewall Having inlet (6), its external port is for sealing even directly or by the juice opening (5) connecting pipe fitting and vacuum juicer Connect；Floating valve door gear includes cavity (4), inlet (6) and float (7)；Wherein float (7) is arranged on recessed The inside in chamber (4).