CN202604504U

CN202604504U - Juicer with combined air extractor

Info

Publication number: CN202604504U
Application number: CN 201220235883
Authority: CN
Inventors: 王晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-24
Filing date: 2012-05-24
Publication date: 2012-12-19
Anticipated expiration: 2022-05-24

Abstract

The utility model discloses a juicer with a combined air extractor. A feed barrel is arranged on a juicing cavity; a juicing mechanism is arranged in the juicing cavity; the output shaft of a juicing motor is connected with the drive shaft of the juicing mechanism; the juicer further comprises the combined air extractor; a sealing device is arranged on the feed barrel; cavities which are interpenetrated are formed among the feed barrel, the juicing cavity, a juice containing part and a residue part; the interpenetrated parts of the cavities are in sealed connection; the cavities are closed cavities in the process of juicing; the combined air extractor is composed of an electrical inflation pump and a jet pump which are serially connected and combined; the air exhaust guide pipe of the electrical inflation pump is connected with the air admission guide pipe of the jet pump; the air extraction port of the combined air extractor is communicated with the cavities; the air exhaust port of the combined air extractor is located outside the cavities; and the air admission guide pipe of the combined air extractor is located outside or inside the cavities. By juicing foodstuffs in an anoxic condition, the juicer with the combined air extractor disclosed by the utility model can be used for greatly reducing the browning and nutritive loss of foodstuff liquid in the process of juicing, so that the foodstuff liquid is good in taste and good in appearance color.

Description

The juice extractor of band combined type air extractor

Technical field

The utility model relates to the juice extractor technical field, particularly relates to a kind of juice extractor with the combined type air extractor.

Background technology

Juice extractor is to refer in particular to power-actuated slag, the juice divergence type equipment of squeezing the juice.Juice extractor all has the motor of squeezing the juice usually and squeezes the juice the chamber, and the motor of squeezing the juice is installed in support or the head usually, and support is integrative-structure or dismountable minute body structure with the chamber of squeezing the juice, and spiral squeezing type squeezing mechanism or centrifugal squeezing mechanism are arranged in the chamber of squeezing the juice.Squeezing mechanism has a driving shaft, and the output shaft of the motor of squeezing the juice stretches out in support or head, connects (directly be connected as one or pass through shaft coupling and connect) with the driving shaft of squeezing mechanism is quiet.Squeezing the juice is equipped with static filter screen or rotary sieve in the chamber usually, with filtration, separated with juice and residue.The spiral squeezing type squeezing mechanism is equipped with static filter screen usually, and centrifugal squeezing mechanism is equipped with rotary sieve usually, and the common rotary head with centrifugal squeezing mechanism of rotary sieve is combined into one.

In the chamber of squeezing the juice, the juice extractor with extrusion juice extractor structure utilizes extruding force will eat in the material (fruit, vegetables etc.) contained juice raw through the driven by motor extrusion juice extractor structure of squeezing the juice and squeezes out, realize that simultaneously scum juice separates.Juice extractor with centrifugal squeezing mechanism will be eaten material raw and grind through the rotary head that the driven by motor of squeezing the juice connects with the driving shaft of squeezing mechanism, simultaneously, will eat the contained juice of material raw through action of centrifugal force and squeeze out, and simultaneously, realize that scum juice separates.

In the present juice extractor; Squeeze the juice the chamber through position and atmosphere such as feeding cylinder, juice opening, slag notches; Make and have a large amount of air in the chamber of squeezing the juice; Cause foodstuff in the process of squeezing the juice with squeeze the juice that airborne oxygen reacts in the chamber, be called brown stain (comprising enzymatic browning, non-enzymatic browning) in the biology.Enzymatic browning is under the condition of aerobic, and phenolase catalysis aldehydes matter forms the course of reaction of quinone and polymer thereof.Non-enzymatic browning is meant the brown stain that under the situation that does not have enzyme to participate in, takes place.

Brown stain mainly is divided into three links: foodstuff was squeezed the juice in the past, the process of squeezing the juice neutralization is squeezed the juice finishes.(being the normality of foodstuff) was big block object before foodstuff was squeezed the juice, and brown stain generally only limits to the surface, and because of surface area is little, brown stain is very slow usually.Foodstuff is squeezed the juice and is finished after (promptly make and be fruit juice, vegetable juice), is placed on that to connect in the juice container be inactive state, and no longer with the air strong friction, brown stain is also slow.Only in foodstuff was squeezed the juice process, the squeezing mechanism of rotation made foodstuff and air produce friction at a high speed, and foodstuff becomes to behind the particulate from big bulk; Its surface area increases thousands of times; Make that foodstuffs such as airborne oxygen and fruit, vegetables produce strongly, brown stain fast, not only make fruit juice, vegetable juice appearance color become brown, and can lose a large amount of vitamins and other nutritious components; Mouthfeel is variation also, must control.

The necessary condition of brown stain is to squeeze the juice enough oxygen to be arranged in the chamber, and therefore, the oxygen content that control is squeezed the juice in the chamber is an important means of controlling brown stain.

The utility model content

The purpose of the utility model is to the technological deficiency that exists in the prior art; And a kind of oxygen content in the chamber of squeezing the juice that can reduce greatly is provided; Avoid in the process of squeezing the juice foodstuff to contact brown stain takes place with oxygen; Thereby, the juice extractor of the nutritional labeling of maintenance fruit juice or vegetable juice and the band combined type air extractor of mouthfeel.

For the technical scheme that purpose adopted that realizes the utility model is:

A kind of juice extractor with the combined type air extractor; Comprise the motor of squeezing the juice, the chamber of squeezing the juice, meet juice portion, residue portion, the said chamber of squeezing the juice is provided with feeding cylinder, in the said chamber of squeezing the juice squeezing mechanism is installed; The output shaft of motor of squeezing the juice connects with the driving shaft of squeezing mechanism; Said feeding cylinder, the chamber of squeezing the juice, connect between juice portion, the residue portion and to form the cavity that connects each other, it is characterized in that, also comprise the combined type air extractor; Said feeding cylinder place is provided with sealing device; Said feeding cylinder, the chamber of squeezing the juice, to connect between juice portion, the residue portion the mutual junction that forms the cavity that connects each other be sealed attachment, and the junction of said cavity and arbitrary parts all seals, and said cavity is airtight cavity in the process of squeezing the juice; Said combined type air extractor is formed by electronic inflating pump and jet pump tandem compound, and the exhaust manifolds of electronic inflating pump directly are connected with the air induction conduit of jet pump or connect through conduit; The air inlet of said electronic inflating pump is the working gas import of said combined type air extractor, and it directly or through air induction conduit is positioned at said cavity outside or inner; The bleeding point of jet pump is the bleeding point of said combined type air extractor, and it directly or through the conduit of bleeding is communicated with said cavity; The exhaust outlet of jet pump is the exhaust outlet of said combined type air extractor, and it directly or through exhaust manifolds is positioned at said cavity outside;

The power source of said electronic inflating pump is individual motor, electromagnetic oscillation device, piezoelectric ceramics vibration device, or in the motor of squeezing the juice any;

Electronic inflating pump power source be electrically connected with control circuit board or power switch through lead.

The said juice portion that connects is for connecing the juice container, and the said chamber of squeezing the juice is provided with juice opening, and said juice opening and connect sealed attachment between the juice container is equipped with scum juice and separates filter screen in the said chamber of squeezing the juice.

Said residue portion is a residue container, and the said chamber of squeezing the juice is provided with slag notch, sealed attachment between said slag notch and the said residue container.

Be equipped with in the bleeding point place of said combined type air extractor or the conduit of bleeding and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the combined type air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit of bleeding is positioned at the top of foodstuff liquid level.

On the said cavity or on the sealing device or the conduit of bleeding be provided with gas turnover by-pass valve control, said gas turnover by-pass valve control adopts any in hand-operated valve, motor-driven valve, the magnetic valve.

Also comprise automaton, said automaton is any in time control circuit, Pneumatic controller or detection of electronic inflating pump load current and the control circuit; Said Pneumatic controller comprises baroceptor or baroswitch, and baroceptor or baroswitch are electrically connected with control circuit board, and baroceptor or baroswitch are communicated with said cavity; Said baroswitch is mechanical type or electronic type.

Also comprise the air pressure display unit, said air pressure display unit is communicated with said cavity, and the air pressure display unit is mechanical type air-pressure gage or electronic type air gauge.

Said combined type air extractor is installed in the juice extractor support, connects the arbitrary position in juice container, residue container, handle and the sealing device; Said sealing device is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder; Juice opening and connect between the juice container with thread connection or interference fit joint mode and realize sealing; Realize sealing with thread connection or interference fit joint mode between slag notch and the residue container; Said power source of squeezing the juice motor or combined type air extractor is installed in support or the head.

The power source of said electronic inflating pump is when squeezing the juice motor, and the pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of the motor of squeezing the juice, this body running of output shaft direct-driven pump of the motor of squeezing the juice; Or the output shaft of the motor of squeezing the juice is through the propeller shaft couplings of transmission mechanism and pump body.

At least one place is in series with the valve of control gas communication in the air induction conduit of said electronic inflating pump, in the air inlet place, exhaust manifolds, in the air induction conduit of exhaust ports or jet pump, in the air inlet place, exhaust manifolds, in the exhaust ports, the conduit of bleeding, in the exhaust manifolds of bleeding point place or electronic inflating pump and the conduit that the air induction conduit of jet pump is connected, and said valve is check valve or two-way valve.

When squeezing the juice, the gas pressure in the said cavity is greater than 0 kPa, less than 10 kPas.

Compared with prior art, the beneficial effect of the utility model is:

1, in the juice extractor of the band combined type air extractor of the utility model; The bleeding point of combined type air extractor is communicated with said cavity; The exhaust outlet of combined type air extractor is positioned at the cavity outside, can the air that seal in the cavity be extracted out through the combined type air extractor.Simultaneously, will be by the chamber of squeezing the juice, connect the cavity sealing of juice portion, the formed mutual perforation of residue portion, the air content in the cavity can not increase in the process of squeezing the juice.Like this, the foodstuff in the juice extractor is squeezed the juice under anoxia condition, brown stain is effectively controlled, and has significantly reduced the brown stain of foodstuff liquid in the process of squeezing the juice, and has reduced nutritive loss, has kept good mouthfeel and appearance color.

2, in the juice extractor of the band combined type air extractor of the utility model; In the bleeding point place of combined type air extractor or the conduit of bleeding, the waterproof and breathable device is installed or/and filter; Can avoid in the process of squeezing the juice because foodstuff or the foodstuff liquid potential safety hazard through causing in the bleeding point entering air extractor is safe to use.

3, in the juice extractor of the band combined type air extractor of the utility model, on the cavity or on the sealing device or the conduit of bleeding be provided with gas turnover by-pass valve control, in needs, Open valve is removed negative pressure state, uses more convenient.

4, in the juice extractor of the band combined type air extractor of the utility model, cavity is provided with the air pressure display unit, makes things convenient for the user to observe, grasp the negative pressure state in the juice extractor cavity.

5, have automaton in the juice extractor of the band combined type air extractor of the utility model, the course of work such as vacuumizing, squeeze the juice can accomplish automatically, easy to use.

6, the own movement-less part of jet pump, simple structure, size is little, and is in light weight, so long service life, not fragile.

Description of drawings

Shown in Figure 1 is the sketch map of the juice extractor embodiment one of the utility model band combined type air extractor;

Shown in Figure 2 is the sketch map of the juice extractor embodiment two of the utility model band combined type air extractor;

Shown in Figure 3 is the sketch map of the juice extractor embodiment three of the utility model band combined type air extractor;

Shown in Figure 4 is the sketch map of the juice extractor embodiment four of the utility model band combined type air extractor;

Shown in Figure 5 is the combined type air extractor structural representation of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The juice extractor of the band combined type air extractor of the utility model is the improvement on the prior art basis, and juice extractor generally all has the motor of squeezing the juice, the chamber of squeezing the juice, meets juice portion, residue portion, connects the collection that juice portion is used for juice, and residue portion is used for the collection of residue.The juice extractor of different structure, its structure that meets juice portion and residue portion is different.The employing that has is independent connects the juice container as meeting juice portion, and what have is made as one or employing with the chamber of squeezing the juice and squeezes the juice the part in chamber as meeting juice portion, meets juice portion in the chamber of squeezing the juice or outside the chamber of squeezing the juice.The independent residue container of the employing that has is as residue portion, and what have is made as one or employing with the chamber of squeezing the juice and squeezes the juice the part in chamber as residue portion, and residue portion is in the chamber of squeezing the juice or outside the chamber of squeezing the juice.The said chamber of squeezing the juice is provided with feeding cylinder, in the said chamber of squeezing the juice squeezing mechanism is installed, and squeezing mechanism is spiral squeezing type squeezing mechanism or centrifugal squeezing mechanism.The output shaft of motor of squeezing the juice connects with the driving shaft of squeezing mechanism, said feeding cylinder, the chamber of squeezing the juice, connects and forms the cavity that connects each other between juice portion, the residue portion.The improvements of the utility model are; Also comprise the combined type air extractor; Said feeding cylinder is provided with sealing device; Said feeding cylinder, the chamber of squeezing the juice, connect between juice portion, the residue portion form the cavity that connects each other mutual junction for being tightly connected; Said feeding cylinder, the chamber of squeezing the juice, the cavity that connects the mutual perforation that forms between juice portion, the residue portion and the junction of arbitrary parts all seal, and constitute the inner airtight cavity that connects each other, thereby make feeding cylinder, the chamber of squeezing the juice, the cavity that connects formed mutual perforation between juice portion, the residue portion be airtight cavity in the process of squeezing the juice.Said combined type air extractor is formed by electronic inflating pump and jet pump tandem compound, and the exhaust manifolds of electronic inflating pump directly are connected with the air induction conduit of jet pump or connect through conduit; The air inlet of said electronic inflating pump is the working gas import of said combined type air extractor, and it is outside or inner that it is positioned at said cavity; The bleeding point of jet pump is the bleeding point of said combined type air extractor, and it directly or through the conduit of bleeding is communicated with said cavity; The exhaust outlet of jet pump is the exhaust outlet of said combined type air extractor, and it is outside that it is positioned at said cavity; The combined type air extractor starts; Extraction by the chamber of squeezing the juice, connect the air in the cavity of juice portion, the formed mutual perforation of residue portion; The process of squeezing the juice is carried out under the condition of anoxic, thereby avoid or reduce brown stain, make fruit juice keep original nutrition composition, mouthfeel and color.

For make feeding cylinder, the chamber of squeezing the juice, the cavity that connects formed mutual perforation between juice portion, the residue portion be airtight cavity in the process of squeezing the juice; The junction of this cavity and arbitrary parts all seals, can adopt directly combine closely or the modes such as sealing ring, sealing gasket of installing realize the sealing.Juice extractor for only having feeding cylinder on the chamber of squeezing the juice is equipped with sealing device on the said feeding cylinder.Connect the juice container as connecing the juice extractor of juice portion for employing, the chamber of squeezing the juice is provided with juice opening, and in order to make the cavity sealing, except on feeding cylinder, installing the sealing device, said juice opening and said connects sealed attachment between the juice container.For the juice extractor that adopts residue container as residue portion, the chamber of squeezing the juice is provided with slag notch, in order to make the cavity sealing, except sealed attachment between said slag notch and the said residue container is installed on feeding cylinder the sealing device.Connect the juice container as meeting juice portion for employing; And adopt the juice extractor of residue container as residue portion, in order to make the cavity sealing, except on feeding cylinder, installing the sealing device; Also will be with sealed attachment between slag notch and the residue container, juice opening and connect sealed attachment between the juice container.The sealing device at said feeding cylinder place is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder, also can adopt other any known mode of being tightly connected to realize sealing; Juice opening and connecing between the juice container with thread connection or interference fit joint mode also can adopt other any known mode of being tightly connected to realize sealing; Realize sealing with thread connection or interference fit joint mode or other any known mode of being tightly connected between slag notch and the residue container.When the feeding cylinder place adopted the sealing of piston type sealing device, slipper seal between piston type sealing device and the feeding cylinder owing to be negative pressure state in the cavity, made the piston type sealing device move down along the feeding cylinder inwall, and foodstuff is had impetus, helps squeezing the juice.

The said juice portion that connects is provided with tap, conveniently to emit fruit juice or vegetable juice.

The bleeding point of combined type air extractor can adopt following mode to realize with being communicated with of said cavity:

1, the chamber of squeezing the juice is provided with the gas outlet, the bleeding point of combined type air extractor directly with the chamber of squeezing the juice on the gas outlet sealed attachment, perhaps use the conduit of bleeding with the gas outlet sealed attachment on the bleeding point of combined type air extractor and the chamber of squeezing the juice.

2, the gas outlet is arranged on feeding cylinder, the bleeding point of combined type air extractor directly with feeding cylinder on the gas outlet sealed attachment, perhaps use is bled conduit with the bleeding point of combined type air extractor and the gas outlet sealed attachment on the feeding cylinder.

3, the gas outlet is arranged connecing on the juice container, the bleeding point of combined type air extractor directly with connect the gas outlet sealed attachment on the juice container, perhaps use bleed conduit with the bleeding point of combined type air extractor with connect the gas outlet sealed attachment on the juice container.

4, the gas outlet is arranged on residue container, the bleeding point of combined type air extractor directly with residue container on the gas outlet sealed attachment, perhaps use is bled conduit with the bleeding point of combined type air extractor and the gas outlet sealed attachment on the residue container.

5, on the sealing device of feeding cylinder, the gas outlet is arranged, the bleeding point of combined type air extractor is directly or through the gas outlet sealed attachment on bleed conduit and the sealing device.

The bleeding point of combined type air extractor is communicated with except that aforesaid way with cavity, also can adopt other modes.

Said electronic inflating pump comprises pump body and power source, and said power source is any in individual motor, electromagnetic oscillation device, piezoelectric ceramics vibration device, the motor of squeezing the juice etc.; Electronic inflating pump power source (through lead) be electrically connected with control circuit board or power switch.The pump body is to receive drive power source, and the power conversion that power source (like motor) is exported is the energy conversion device of fluid pressure energy.Be divided into piston type, centrifugal, axial-flow type, mixed-flow, rotary vane type, diaphragm type, Scroll-tupe, screw or roots-type etc. according to pump body working method difference.Though known electronic inflating pump kind is a lot, all has air inlet, exhaust outlet on the pump body of any electronic inflating pump, between pump body and the air inlet air induction conduit is arranged, and between pump body and the exhaust outlet exhaust manifolds is arranged.Squeeze the juice motor when being power source when employing, and the pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of the motor of squeezing the juice, this body running of output shaft direct-driven pump of the motor of squeezing the juice.Or the output shaft of the motor of squeezing the juice is through the propeller shaft couplings of transmission mechanism and pump body, and the motor of squeezing the juice passes through this body running of transmission mechanism driving pump.Transmission mechanism can adopt any in the known transmission mechanisms such as gear drive, belt gear, chain-drive mechanism, clutch transmission mechanism.

Jet pump is that to rely on the gas with certain pressure be power, sprays the negative pressure that the jet action of generation produces at a high speed through nozzle and takes the pump of being pumped gas away.It is that power gas source could be worked that jet pump must rely on the extraneous certain pressure gas that has.

Jet pump comprises the pump body, and air inlet, bleeding point, exhaust outlet are arranged on the pump body.Between pump body and the air inlet air induction conduit is arranged, the conduit of bleeding between pump body and the bleeding point has exhaust manifolds between pump body and the exhaust outlet.Nozzle, trunnion, anemostat, suction chamber etc. are arranged in the pump body.Working gas with certain pressure is got in the pump body by air induction conduit; Spray into trunnion by nozzle again, make suction chamber produce negative-pressure vacuum, and then pumped gas through the conduit suction of bleeding; Mixed gas gets into anemostat, and is originally external through the exhaust manifolds excavationg pump together at last.

Said electronic inflating pump is the source of the gas of the working gas of jet pump, and the working gas with certain pressure is provided for jet pump.

Said combined type air extractor vacuumizes cavity, if just take little air away, is 60-70 kPa (being equivalent to take the 30-40% air away) such as the cavity internal gas pressure, and the effect that then reduces brown stain is very poor.When absolute pressure is lower than 30 kPas (being equivalent to take 70% left and right sides air away) in the ordinary circumstance lower chamber, just has and reduce the brown stain effect preferably; Tangible minimizing brown stain effect is arranged when being lower than 15 kPas (being equivalent to take 85% air away); When being lower than 10 kPas (being equivalent to take 90% air away); Owing to can not only take airborne most of oxygen away; And, can take most of oxygen of foodstuff tissue space away, therefore; Very outstanding minimizing brown stain effect is arranged, also can keep not having basically in one, two hour brown stain in the open-top receptacle even if obtained fruit juice or vegetable juice are poured into; When being lower than 2.5 kPas (being equivalent to take the air more than 97.5% away), the effect that not only reduces brown stain is more outstanding, and about 20 ℃ of the boiling point of water under this pressure; Air pressure further reduces, and then corresponding water boiling point also reduces, in the time of 1 kPa of air pressure, and about 7 ℃ of water boiling point.So when the cavity internal gas pressure was lower than 2.5 kPas, the juice extractor of the utility model band combined type air extractor had the effect to foodstuff liquid (fruit juice, vegetable juice) refrigeration cool-down concurrently.Therefore, the gas pressure in the cavity described in the utility model is preferably greater than 0 kPa, less than 10 kPas.

As shown in Figure 5, be the combined type air extractor structural representation of the utility model.Combined type air extractor S (frame of broken lines signal) is made up of with jet pump slb tandem compound electronic inflating pump 6, and electronic inflating pump 6 is signal, and it is provided with air induction conduit djg, air inlet djk, exhaust manifolds dpg, exhaust outlet dpk.

Jet pump slb is provided with air induction conduit sjg, air inlet sjk, bleeding point 7, the conduit 71 of bleeding, exhaust manifolds 81, exhaust outlet 8.

The exhaust manifolds dpg of electronic inflating pump 6 is connected through conduit dg with the air induction conduit sjg of jet pump slb; Jet pump slb bleeding point 7 also is a combined type air extractor S bleeding point; The exhaust outlet 8 of jet pump slb is exhaust outlets of combined type air extractor S; The air inlet of electronic inflating pump 6 is working gas air inlets of said combined type air extractor.

When electronic inflating pump 6 is worked; Air inlet djk through air induction conduit djg sucks outside air; Exhaust outlet dpk through exhaust manifolds dpg discharges in the air and the air induction conduit sjg through conduit dg entering jet pump slb with pressure again; Spray into trunnion, anemostat etc. through the nozzle in the jet pump slb again and locate, make the conduit 71 of bleeding, bleeding point 7 places produce negative pressure of vacuum and suck air, mixed air is discharged through exhaust manifolds 81, exhaust outlet 8 again.

No matter the air inlet djk of electronic inflating pump 6 is located in the outer or cavity of cavity, foodstuff liquid level top can suck air and the compression back as the working gas of jet pump slb; As long as the bleeding point 7 of jet pump slb is communicated with the air that just can extract in the cavity with said cavity,, can air in the cavity be discharged as long as jet pump slb exhaust outlet 8 is located at the outer any part of cavity.

No matter parts itself such as the electronic inflating pump 6 of combined type air extractor S and jet pump slb are located at support, connect the purpose that can reach the utility model in juice container, residue container, handle and the sealing device.The air inlet djk of electronic inflating pump 6 preferably is positioned at outside the cavity.Combined type air extractor S preferably is located in the support.

Electronic inflating pump 6 is that self has independent driving motor; Or self not having independent driving motor, the pump body is to inflate with the motor-driven of squeezing the juice.

In following Fig. 1, Fig. 2, Fig. 3, Fig. 4; Only drawn combined type air extractor S and (combined type air extractor S need bleed from the external world, air inlet or exhaust) air induction conduit djg, air inlet, the conduit of bleeding, bleeding point, exhaust manifolds, exhaust outlet have omitted (in the combined type air extractor S, electronic inflating pump 6 and jet pump handing-over) exhaust manifolds dpg, exhaust outlet dpk, air induction conduit sjg, air inlet sjk, conduit dg.

Electronic inflating pump can be the electronic inflating pump of electric piston formula inflating pump, electric centrifugal-type inflating pump, electronic rotary vane type inflating pump, electronic (or electromagnetism) diaphragm type inflating pump, electronic spiral vortex type inflating pump, electric screw inflating pump, piezoelectric pump or other any known.Wherein piezoelectric pump does not have drive motors, is to utilize the inverse piezoelectric effect of piezoelectric ceramics to make piezoelectric vibrator produce distortion, and the volume-variation by distortion generation pump chamber realizes fluid output or utilize piezoelectric vibrator to produce fluctuating pumping gas again.

In order to ensure the safe in utilization of combined type air extractor; Be equipped with in the bleeding point place of said combined type air extractor or the conduit of bleeding and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the combined type air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit of bleeding is positioned at the top of foodstuff liquid level.The waterproof and breathable device can be waterproof ventilated membrane or waterproof and breathable sheet, waterproof vent valve, permeable watertight valve, prevent aqueous reflux check (non-return) valve etc.Filter is used to filter the foodstuff dregs, avoids foodstuff to get in the inflating pump, and filter can be screen pack or other filters, and is detachable or be fixed in the bleeding point place or the conduit of bleeding of combined type air extractor.

In order in needs, to remove the negative pressure state in the chamber of squeezing the juice; On the said cavity or on the sealing device or the conduit of bleeding be provided with gas turnover by-pass valve control, in needs, gas is passed in and out by-pass valve control opens; Air outside gets in the chamber of squeezing the juice, and removes negative pressure state.Said gas turnover valve adopts any in hand-operated valve, motor-driven valve, the magnetic valve.The lead of said motor-driven valve or magnetic valve is electrically connected with control circuit board or power switch.Gas turnover by-pass valve control can adopt the following manner setting:

1, on cavity wall, be provided with passage, passage permeate chamber body sidewall is sealed and installed with gas turnover by-pass valve control on the passage;

2, passage is arranged on sealing device, passage runs through sealing device itself, is sealed and installed with gas turnover by-pass valve control on the passage;

3, on the sidewall of the conduit of bleeding of combined type air extractor, be provided with the hole, be sealed and installed with gas turnover by-pass valve control on the hole.

For simple and easy type, can adopt the mode of the electronic inflating pump power source of manual control to control and bleed.

For the ease of the automatic control that realizes bleeding, the automaton of the electronic inflating pump work of control is installed also on the juice extractor of the band combined type air extractor of the utility model.Automaton can be arranged on original control circuit board, also can be arranged on separately on another wiring board.

Said automaton can adopt any one control mode of the prior art, for example adopts in time control circuit, Pneumatic controller or detection of electronic inflating pump load current and the control circuit any.

Adopt time control circuit; Control the work of electronic inflating pump with timing mode, for example after the juice extractor start with the combined type air extractor, this time control circuit at first starts the combined type air extractor and bled 30 seconds; Make that air is drawn out of in the hermetic cavity body, and then work such as squeeze the juice.

Adopt Pneumatic controller to comprise baroceptor or baroswitch; Baroceptor or baroswitch are electrically connected with control circuit board; Baroceptor or baroswitch are communicated with said cavity; Particular location is located at the bleeding point of combined type air extractor or the conduit of bleeding is interior or the interior foodstuff liquid level of cavity top, and baroceptor or baroswitch for water proof type also can be located at below the foodstuff liquid level.Baroceptor transfers to control circuit board with the barometric information variation with electrical signal form, and control circuit board is controlled the work of electronic inflating pump with this, thus the work of control combination formula air extractor.Said baroswitch is mechanical type or electronic type.The cavity internal gas pressure changes makes baroswitch conducting or disconnection, controls the work of electronic inflating pump with this, thus the work of control combination formula air extractor.For example after the juice extractor start with the combined type air extractor; Air pressure in the baroceptor test chamber of Pneumatic controller, as be higher than setting value (as 10 kPas), then at first start electronic inflating pump and inflate; The drive jet pump is bled; The interior air of hermetic cavity body is drawn out of, when the cavity internal gas pressure is lower than setting value (10 kPas), and then squeezes the juice.

Said automaton is by detecting comparator (or single-chip microcomputer constitutes) detection and the control circuit that electronic inflating pump load current changes.It is to detect the work that the load current of electronic inflating pump own changes the electronic inflating pump of control.When the combined type air extractor is started working, because of the pressure reduction inside and outside the cavity is little, so the load of electronic inflating pump is little, operating current is less; Along with bleeding, the inside and outside pressure reduction of cavity increases gradually, and it is big that the load of electronic inflating pump becomes, and it is big that its operating current also becomes; When reaching the combined type air extractor and can extract the negative pressure limit that reaches, it is maximum that its operating current also reaches.Detect and the relatively variation of this load current, just can control the opening and closing of electronic inflating pump through the setting of control program.For example, the electric current of electronic inflating pump is 1 ampere when just having begun to bleed work, and electric current is 3 amperes when reaching the peak suction limit, detects the variation of electronic inflating pump operating current, when operating current reaches 3 amperes (or postponing 5 seconds), and then squeezes the juice.

Said control circuit board includes single-chip microcomputer, and control program is located in the single-chip microcomputer, can adopt known control module.Control circuit board changed or work such as electronic inflating pump load current delta data control combination formula air extractor and squeezing mechanism according to said air pressure change, time, accomplished the work of squeezing the juice that vacuumizes.

Said combined type air extractor can be installed in juice extractor support or head, connect the arbitrary position in juice container, residue container, handle and the sealing device.Preferably will squeeze the juice motor and combined type air extractor is installed in the support.

For the ease of observing the gas pressure in the cavity, also comprise the air pressure display unit, said air pressure display unit is communicated with said cavity, and the air pressure display unit is mechanical type air-pressure gage or electronic type air gauge.

The baroceptor of air pressure display unit is located in the cavity, in the conduit of bleeding or the bleeding point place of combined type air extractor, and its display is located on the sealing device, on the head, on the support or on the cavity wall.

Mechanical type air-pressure gage is pointer air gauge, comprises baroceptor and pointer header, and baroceptor is located in the cavity, in the conduit of bleeding, in bleeding point place or the gauge outfit, and gauge outfit is located on the sealing device, on head or the support or on the cavity wall.

Also can be on cavity wall or sealing device, to be provided with pressure tap; The elastic film shutoff is housed in the pressure tap; When cavity was negative pressure of vacuum, elastic film caved inward (elastic film itself promptly is that baroceptor also is a pneumatic indicator), with the negative pressure state in this simple displaying cavity.

The electronic type air gauge comprises baroceptor, testing circuit and optical display or auditory tone cues device; Be to be electrically connected between the each several part; Baroceptor is arranged in the cavity or in the conduit of bleeding or the bleeding point place of combined type air extractor; Testing circuit is arranged on the control circuit board, and optical display is arranged on the sealing device, on head or the support or on the cavity wall, the auditory tone cues device is located on the control circuit board.

In order to stop to bleed at the combined type air extractor and said cavity when need keep vacuum; Avoid outside air to get into and destroy vacuum in the said cavity; In the air induction conduit of said electronic inflating pump, in the air inlet place, exhaust manifolds, in the air induction conduit of exhaust ports or jet pump, in the air inlet place, exhaust manifolds, in the exhaust ports, the conduit of bleeding, be connected with the air induction conduit of jet pump at least one place in the conduit of the exhaust manifolds of bleeding point place or electronic inflating pump is in series with the valve of control gas communication, said valve is check valve or two-way valve.

In order to reduce the noise that produces in the pumping process, in the air inlet place of said combined type air extractor, the air induction conduit, in the bleeding point place, the conduit of bleeding, at least one place is in series with muffler in exhaust ports and the exhaust manifolds.

Below in conjunction with specific embodiment the utility model is done further explain.

Embodiment one

Shown in Figure 1 is the sketch map of the juice extractor embodiment one of the utility model band combined type air extractor, is on the basis of spiral squeezing type juice extractor, to improve.

Juice extractor comprises support 17-1, the motor 2-1 that squeezes the juice, the chamber 10-1 that squeezes the juice, meet juice portion, residue portion, and the juice portion that connects in the present embodiment is for meeting juice container 16-1, and residue portion is residue container 13-1.The chamber 10-1 that squeezes the juice is provided with juice opening 15-1 and slag notch 12-1.The feeding cylinder 8-1 of one is installed on the said chamber 10-1 that squeezes the juice, said feeding cylinder 8-1, the chamber 10-1 that squeezes the juice, connects between juice container 16-1, the residue container 13-1 and to form the cavity that connects each other.The motor 2-1 that squeezes the juice is installed in the support 17-1, and support 17-1 can be in the side of squeezing the juice chamber 10-1, also can be in the bottom of squeezing the juice chamber 10-1.Support 17-1 in the present embodiment is positioned at the side of the chamber 10-1 that squeezes the juice.In the said chamber 10-1 that squeezes the juice spiral squeezing type squeezing mechanism 11-1 is installed.The spiral squeezing type squeezing mechanism comprises spiral propeller and driving shaft 18-1 thereof, scum juice is installed in the chamber of squeezing the juice separates filter screen 14-1 (also can not add scum juice and separate filter screen), and it is static filter screen that the scum juice in the present embodiment separates filter screen.The output shaft of motor 2-1 of squeezing the juice connects with the driving shaft 18-1 of squeezing mechanism 11-1 through shaft coupling 9-1; Improvements are also to comprise combined type air extractor 1-1; The bleeding point of said combined type air extractor 1-1 directly or through bleed conduit 5-1 and feeding cylinder 8-1, the chamber 10-1 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-1, the residue container 13-1 is communicated with; The exhaust outlet 3-1 of said combined type air extractor 1-1 is positioned at the outside of cavity, and the air induction conduit djg of the electronic inflating pump on the said combined type air extractor 1-1 (air inlet) is positioned at the cavity outside.For fear of or reduce brown stain; Make the chamber of squeezing the juice in the process of squeezing the juice, be airtight cavity; Feeding cylinder 8-1, the chamber 10-1 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-1, the residue container 13-1 and the junction of arbitrary parts all seal, and the position that present embodiment need seal is the driving shaft 18-1 of feeding cylinder 8-1, juice opening 15-1, slag notch 12-1, squeezing mechanism 11-1 and the 10-1 joint, chamber of squeezing the juice.The mode that sealing device 6-1 adopt is installed at feeding cylinder 8-1 place seals, juice opening 15-1 and connect sealed attachment between the juice container 16-1, sealed attachment between slag notch 12-1 and the residue container 13-1.The driving shaft 18-1 of squeezing mechanism 11-1 adopts the mode that sealing ring is installed to seal with the 10-1 joint, chamber of squeezing the juice; Make feeding cylinder 8-1, the chamber 10-1 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-1, the residue container 13-1 be an airtight cavity, help the air in the chamber 10-1 that squeezes the juice is extracted out.For present embodiment, the sealing device 6-1 at said feeding cylinder 8-1 place is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder, also can adopt other any known mode of being tightly connected to realize sealing.Juice opening 15-1 and connect between the juice container 16-1 with thread connection or interference fit joint mode or other any known mode of being tightly connected and realize sealing.Realize sealing with thread connection, interference fit joint mode or other any known mode of being tightly connected between slag notch 12-1 and the residue container 13-1.

The bleeding point of combined type air extractor can adopt following mode to realize with being communicated with of cavity:

Any parts that squeeze the juice chamber, feeding cylinder, connect formation cavitys such as juice container, residue container are provided with the gas outlet; Direct and the gas outlet sealed attachment of the bleeding point of combined type air extractor is perhaps through bleeding point and the said gas outlet sealed attachment of conduit with the combined type air extractor of bleeding.

The electronic inflating pump of combined type air extractor 1-1 in the present embodiment comprises pump body and power source, and power source is an individual motor.The pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of individual motor, this body running of output shaft direct-driven pump of individual motor.The pump body is the piston type inflating pump.

In order to ensure the safe in utilization of combined type air extractor; Be equipped with in the bleeding point place of said combined type air extractor 1-1 or the conduit 5-1 that bleeds and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the combined type air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit 5-1 that bleeds is positioned at the top of foodstuff liquid level.The waterproof and breathable device can be waterproof ventilated membrane or waterproof and breathable sheet, waterproof vent valve, permeable watertight valve, prevent aqueous reflux check (non-return) valve etc.Filter is used to filter the foodstuff dregs, avoids foodstuff to get in the combined type air extractor, and filter can be screen pack or other filters, and is detachable or be fixed in the bleeding point place of combined type air extractor or the conduit 5-1 that bleeds.

In order in needs, to remove the negative pressure state in the chamber 10-1 that squeezes the juice; On the said cavity or on the sealing device or the conduit of bleeding be provided with gas turnover by-pass valve control 7-1; In needs; Gas is passed in and out by-pass valve control 7-1 open, air outside gets in the chamber 10-1 that squeezes the juice, and removes negative pressure state.Said gas turnover by-pass valve control 7-1 adopts any in hand-operated valve, motor-driven valve, the magnetic valve.For motor-driven valve, magnetic valve, its lead is electrically connected with the control circuit board or the power switch of juice extractor.Gas turnover by-pass valve control 7-1 can adopt the following manner setting:

1, in feeding cylinder, the chamber of squeezing the juice, connect on the sidewall at the arbitrary place of cavity of the mutual perforation that forms between juice container, the residue container and be provided with passage, passage permeate chamber body sidewall is sealed and installed with gas turnover by-pass valve control on the passage;

2, passage is arranged on sealing device, passage runs through sealing device itself, is sealed and installed with gas turnover by-pass valve control on the passage.

In the present embodiment; For the ease of the automatic control that realizes bleeding; Be sealed and installed with gas pressure sensor 4-1 in the bleeding point place of said combined type air extractor 1-1 or the conduit 5-1 that bleeds; The power source of the electronic inflating pump of said gas pressure sensor 4-1, combined type air extractor 1-1 is electrically connected with control circuit board respectively through lead, and the gas pressure sensor 4-1 perception bleeding point place or the interior gas pressure of conduit 5-1 of bleeding are passed to the automatic control circuit of control circuit board; Automatic control circuit starts or stops according to the electronic inflating pump of gas pressure control combination formula air extractor, thus the starting or stoping of control combination formula air extractor.Said combined type air extractor 1-1 can be installed in juice extractor support 17-1, meets juice container 16-1, the arbitrary position among residue container 13-1, the chamber 10-1 that squeezes the juice (interior or outer), feeding cylinder 8-1 (interior or outer) and the sealing device 6-1.Preferably will squeeze the juice in present embodiment motor 2-1 and combined type air extractor 1-1 is installed in the support 17-1.

In order to reduce the noise that produces in the pumping process, among the conduit 5-1 that bleeds of combined type air extractor 1-1, exhaust outlet 3-1 place all is in series with muffler.

Foodstuff is sent in the feeding cylinder 8-1, covered sealing device 6-1, meet juice container 16-1 and juice opening 15-1 is tightly connected; Residue container 13-1 and slag notch 12-1 are tightly connected; Combined type air extractor 1-1 starts, and extracts the air in the cavity out, and the pressure in the chamber of generally squeezing the juice is 5-10kPa.The motor 2-1 that squeezes the juice starts, and 11-1 squeezes out the juice in the foodstuff through the screw extrusion squeezing mechanism, and the juice of squeezing out connects the juice container 16-1 from juice opening 15-1 entering through the filtration of static filter screen 14-1.Residue is advanced to slag notch 12-1 place along the screw extrusion squeezing mechanism, gets in the residue container 13-1.Because the process of squeezing the juice is carried out, thereby avoid or reduce the generation of brown stain under the condition of anoxic, make fruit juice keep original nutrition composition, mouthfeel and color.

Embodiment two

Shown in Figure 2 is the sketch map of the juice extractor embodiment two of the utility model band combined type air extractor, is on the basis of centrifugal basic model juice extractor, to improve.

This juice extractor comprises support 17-2, the motor 2-2 that squeezes the juice, the chamber 10-2 that squeezes the juice, meet juice portion, residue portion, and the juice portion that connects in the present embodiment is for meeting juice container 16-2, and residue portion is residue container 13-2.The chamber 10-2 that squeezes the juice is provided with juice opening 15-2 and slag notch 12-2.The motor 2-2 that squeezes the juice is installed in the support 17-2, and support 17-2 can be in the side of squeezing the juice chamber 10-2, also can be in the bottom of squeezing the juice chamber 10-2.Support 17-2 in the present embodiment is positioned at the bottom of the chamber 10-2 that squeezes the juice.Squeezing the juice is equipped with centrifugal squeezing mechanism in the 10-2 of chamber, and centrifugal squeezing mechanism comprises that cutterhead 19-1, cutterhead seat, scum juice separate filter screen 14-2, driving shaft 18-2, and it is rotary sieve that the scum juice in the present embodiment separates filter screen 14-2.Wherein, cutterhead 19-1, cutterhead seat, rotary sieve 14-2 are integral structure, and driving shaft 18-2 passes the chamber 10-2 that squeezes the juice and connects with the output shaft of the motor 2-2 that squeezes the juice through shaft coupling 9-2.

The chamber 10-2 that squeezes the juice is partly combined with the juice that connects that is positioned at around the rotary sieve 14-2 bottom by upper cover part 20-1.Said upper cover part 20-1 is provided with feeding cylinder 8-2, and feeding cylinder 8-2 is positioned at the position, top of the chamber 10-2 that squeezes the juice.Said feeding cylinder 8-2, the chamber 10-2 that squeezes the juice, connect between juice container 16-2, the residue container 13-2 and to form the cavity that connects each other.

Improvements are also to comprise combined type air extractor 1-2; The bleeding point of combined type air extractor 1-2 directly or through bleed conduit 5-2 and feeding cylinder 8-2, the chamber 10-2 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-2, the residue container 13-2 is communicated with; It is outside that the exhaust outlet 3-2 of combined type air extractor is positioned at this cavity, and the air induction conduit djg of the electronic inflating pump on the said combined type air extractor 1-2 is positioned at the cavity outside.For fear of or reduce brown stain; Make the chamber 10-2 that squeezes the juice in the process of squeezing the juice, be airtight cavity; Feeding cylinder 8-2, the chamber 10-2 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-2, the residue container 13-2 and the junction of arbitrary parts all seal, the position that present embodiment need seal be feeding cylinder 8-2, juice opening 15-2, slag notch 12-2, squeezing mechanism driving shaft 18-2 with squeeze the juice 10-2 joint, chamber, upper cover part 20-1 and be positioned at the joint that connects the juice part around the rotary sieve 14-2 bottom.Feeding cylinder 8-2 place adopts sealing device 6-2 to seal, juice opening 15-2 and connect sealed attachment between the juice container 16-2, sealed attachment between slag notch 12-2 and the residue container 13-2.

Upper cover part 20-1 be positioned at the joint that connects the juice part around the rotary sieve 14-2 bottom and adopt directly to combine closely or the sealing gasket mode is set and seal, the driving shaft 18-2 of squeezing mechanism adopts the mode that mechanical seals such as sealing ring are installed to seal with the 10-2 joint, chamber of squeezing the juice.After the above-mentioned sealing, make feeding cylinder 8-2, the chamber 10-2 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-2, the residue container 13-2 be an airtight cavity, help the air in the chamber of squeezing the juice is extracted out.For present embodiment, the sealing device 6-2 of the said feeding cylinder 8-2 of place is seal cover or piston type sealing device, realizes sealing with thread connection, interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder; Also can adopt other any known mode of being tightly connected to realize sealing.Juice opening 15-2 and connect between the juice container 16-2 with thread connection or interference fit joint mode or other any known mode of being tightly connected and realize sealing.Realize sealing with thread connection or interference fit joint mode or other any known mode of being tightly connected between slag notch 12-2 and the residue container 13-2.

1, is provided with the gas outlet in the upper cover part in chamber of squeezing the juice, the optional position that connects on the parts of formation cavitys such as juice container, residue container, feeding cylinder; Direct and the said gas outlet sealed attachment of the bleeding point of combined type air extractor is perhaps used bleeding point and the said gas outlet sealed attachment of conduit with the combined type air extractor of bleeding.

2, the squeeze the juice wall of chamber bottom is provided with the hole; The sealed attachment conduit of bleeding on the bleeding point of combined type air extractor; The hole that the conduit of bleeding passes on the chamber of squeezing the juice gets in the chamber of squeezing the juice; The gas inlet end of conduit of bleeding is positioned at the top of the chamber foodstuff liquid level of squeezing the juice, and the conduit of bleeding is a hermetically-sealed construction with the joint, chamber of squeezing the juice.

The bleeding point of combined type air extractor is communicated with except that aforesaid way with cavity, also can adopt other modes.Preferential the 2nd kind of mode in the present embodiment.

The electronic inflating pump of combined type air extractor 1-2 in the present embodiment comprises pump body and power source, and power source is an individual motor.The pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of individual motor, this body running of output shaft direct-driven pump of individual motor.The pump body adopts the piston type inflating pump.

In order to ensure that combined type air extractor 1-2's is safe in utilization; Be equipped with in the bleeding point place of said combined type air extractor 1-2 or the conduit 5-2 that bleeds and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the bleeding point of combined type air extractor 1-2 or/and filter, the gas inlet end of the bleeding point or the conduit 5-2 that bleeds is positioned at the top of foodstuff liquid level.The waterproof and breathable device can be waterproof ventilated membrane or waterproof and breathable sheet, waterproof vent valve, permeable watertight valve, prevent aqueous reflux check (non-return) valve etc.Filter is used to filter the foodstuff dregs, avoids foodstuff to get in the combined type air extractor, and filter can be screen pack or other filters, and is detachable or be fixed in the bleeding point place or the conduit of bleeding of combined type air extractor.

In order in needs, to remove the negative pressure state in the chamber of squeezing the juice, said cavity is provided with gas turnover by-pass valve control 7-2, in needs, gas is passed in and out by-pass valve control 7-2 open, and air outside gets in the chamber 10-2 that squeezes the juice, and removes negative pressure state.Said gas turnover by-pass valve control 7-2 adopts any in hand-operated valve, motor-driven valve, the magnetic valve, and the lead of motor-driven valve, magnetic valve is electrically connected with control circuit board or power switch.Gas turnover by-pass valve control can adopt the following manner setting:

In the present embodiment; For the ease of the automatic control that realizes bleeding; Be sealed and installed with gas pressure sensor 4-2 in the bleeding point place of said combined type air extractor 1-2 or the conduit 5-2 that bleeds, the power source of the electronic inflating pump of said gas pressure sensor 4-2, combined type air extractor 1-2 is electrically connected with control circuit board respectively through lead.Gas pressure in the gas pressure sensor 4-2 perception bleeding point place or the conduit 5-2 that bleeds; Pass to the automatic control circuit of control circuit board; Automatic control circuit starts or stops according to the electronic inflating pump of gas pressure control combination formula air extractor, thus the starting or stoping of control combination formula air extractor.Said combined type air extractor 1-2 can be installed in juice extractor support 17-2, meets juice container 16-2, the arbitrary position among residue container 13-2, the chamber 10-2 that squeezes the juice (interior or outer), feeding cylinder 8-2 (interior or outer) and the sealing device 6-2.Preferably will squeeze the juice in present embodiment motor 2-2 and combined type air extractor 1-2 is installed in the support 17-2.In the time of in the combined type air extractor is installed on support 17-2, support 17-2 is not the exhaust outlet exhaust that is beneficial to the combined type air extractor of sealing.

In the present embodiment; In order to stop to bleed at combined type air extractor 1-2 and the chamber 10-2 that squeezes the juice when need keep vacuum; Avoid outside air to get into and destroy vacuum; In the conduit 5-2 that bleeds, also be provided with the check valve F of control gas communication, the gas communication direction of check valve F is: outside in the chamber 10-2 that squeezes the juice, flowing to.Thereby when combined type air extractor 1-2 bled, check valve F opened, and does not influence the work of normally bleeding; When combined type air extractor 1-2 stopped to bleed, check valve F closed automatically, avoided the outside air adverse current to get in the chamber 10-2 that squeezes the juice.

Foodstuff is sent in the feeding cylinder 8-2, covered sealing device 6-2, meet juice container 16-2 and juice opening 15-2 is tightly connected; Residue container 13-2 and slag notch 12-2 are tightly connected; Combined type air extractor 1-2 starts, and extracts the air in the cavity out, and the pressure in the chamber 10-2 that generally squeezes the juice is 5-10kPa.The motor 2-2 that squeezes the juice starts, and through centrifugal squeezing mechanism the juice in the foodstuff is squeezed out, and the juice of squeezing out gets into the 10-2 bottom, chamber of squeezing the juice through the filtration that scum juice separates filter screen 14-2, and connects the juice container 16-2 from juice opening 15-2 entering.Residue gets in the residue container 13-2 because centrifugal action throws away from slag notch 12-2.Because the process of squeezing the juice is carried out, thereby reduce oxidation under the condition of anoxic, make fruit juice keep original nutrition composition, mouthfeel and color.

Embodiment three

Shown in Figure 3 is the sketch map of the juice extractor embodiment three of the utility model band combined type air extractor, is on the basis that connects the centrifugal juice extractor that juice container, residue container and the chamber of squeezing the juice lump together, to improve.

This juice extractor comprises support 17-3, the motor 2-3 that squeezes the juice, the chamber 10-3 that squeezes the juice, meet juice portion, residue portion.

Squeeze the juice chamber 10-3 by upper cover part 20-2, meet juice container 16-3 and residue container 13-3 combines.Squeezing the juice has feeding cylinder 8-3 on the upper cover part 20-2 in chamber.

Meet juice portion for meeting juice container 16-3, residue portion is residue container 13-3.The motor 2-3 that squeezes the juice is installed in the support 17-3, and the support 17-3 in the present embodiment is positioned at the bottom of the chamber 10-3 that squeezes the juice.Squeeze the juice and centrifugal squeezing mechanism is installed in the 10-3 of chamber.Centrifugal squeezing mechanism comprises that cutterhead 19-2, cutterhead seat, scum juice separate filter screen 14-3, driving shaft 18-3, and it is rotary sieve that the scum juice in the present embodiment separates filter screen 14-3.Cutterhead 19-2, cutterhead seat, rotary sieve 14-2 are integral structure, and driving shaft 18-3 passes the chamber 10-3 that squeezes the juice and connects with the output shaft of the motor 2-3 that squeezes the juice through shaft coupling 9-3.Said feeding cylinder 8-3, the chamber 10-3 that squeezes the juice, connect between juice container 16-3, the residue container 13-3 and to form the cavity that connects each other.

Improvements are also to comprise combined type air extractor 1-3; The bleeding point of said combined type air extractor 1-3 directly or through bleed conduit 5-3 and feeding cylinder 8-3, the chamber 10-3 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-3, the residue container 13-3 is communicated with; The exhaust outlet 3-3 of said air extractor 1-3 is positioned at the cavity outside, and the air induction conduit djg of the electronic inflating pump on the said combined type air extractor 1-3 is positioned at the cavity outside.For fear of, reduce oxidation; Make the chamber 10-3 that squeezes the juice in the process of squeezing the juice, be airtight cavity; Feeding cylinder 8-3, the chamber 10-3 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-3, the residue container 13-3 and the junction of arbitrary parts all seal, and the position that present embodiment need seal is feeding cylinder 8-3, driving shaft 18-3 and the 10-3 joint, chamber of squeezing the juice, upper cover part 20-2 and residue container 13-3 joint, residue container 13-3 and connects juice container 16-3 joint.After the sealing of above-mentioned position, make feeding cylinder 8-3, the chamber 10-3 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-3, the residue container 13-3 be an airtight cavity, help the air in the chamber 10-3 that squeezes the juice is extracted out.The sealing device 6-3 at feeding cylinder 8-3 place is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder; Also can adopt other any known mode of being tightly connected to realize sealing.

1, is provided with the gas outlet in the upper cover part in chamber of squeezing the juice, the optional position that connects on the parts of formation cavitys such as juice container, residue container, feeding cylinder; Direct and the gas outlet sealed attachment of the bleeding point of combined type air extractor is perhaps used bleeding point and the gas outlet sealed attachment of conduit with air extractor of bleeding.

2, the squeeze the juice wall of chamber bottom is provided with the hole; The sealed attachment conduit of bleeding on the bleeding point of combined type air extractor; The hole that the conduit of bleeding passes on the chamber of squeezing the juice gets in the chamber of squeezing the juice; The gas inlet end of conduit of bleeding is positioned at the top of the chamber foodstuff liquid level of squeezing the juice, and the conduit of bleeding is a hermetically-sealed construction with the joint, chamber of squeezing the juice.Be positioned at the chamber of squeezing the juice and bleed conduit upper semisection and the conduit lower semisection place of interconnecting of bleeding that is positioned at support also for being tightly connected.

The electronic inflating pump of combined type air extractor 1-3 in the present embodiment comprises pump body and power source.Power source is an electromagnetic oscillation device, and the pump body is a membrane pump.Electromagnetic oscillation device is through the work of vibratory drive membrane pump.

In order to ensure that combined type air extractor 1-3's is safe in utilization; Be equipped with in the bleeding point place of said combined type air extractor 1-3 or the conduit 5-3 that bleeds and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit 5-3 that bleeds is positioned at the top of foodstuff liquid level.The waterproof and breathable device can be waterproof ventilated membrane or waterproof and breathable sheet, waterproof vent valve, permeable watertight valve, prevent aqueous reflux check (non-return) valve etc.Filter is used to filter the foodstuff dregs, avoids foodstuff to get in the combined type air extractor, and filter can be screen pack or other filters, and is detachable or be fixed in the bleeding point place of combined type air extractor 1-3 or the conduit 5-3 that bleeds.

In order in needs, to remove the negative pressure state in the chamber 10-3 that squeezes the juice; Said cavity is provided with gas turnover by-pass valve control 7-3, in needs, gas is passed in and out by-pass valve control 7-3 open; Air outside gets in the chamber 10-3 that squeezes the juice, and removes negative pressure state.Said gas turnover by-pass valve control 7-3 adopts any in hand-operated valve, motor-driven valve, the magnetic valve, and the lead of motor-driven valve, magnetic valve is electrically connected with control circuit board or power switch.Gas turnover by-pass valve control 7-3 can adopt the following manner setting:

In the present embodiment; For the ease of the automatic control that realizes bleeding; Be sealed and installed with gas pressure sensor 4-3 in the bleeding point place of said combined type air extractor 1-3 or the conduit 5-3 that bleeds; The power source of the electronic inflating pump of said gas pressure sensor 4-3, combined type air extractor 1-3 is electrically connected with control circuit board respectively through lead, and gas pressure sensor 4-3 detects, perception bleeding point place or the interior gas pressure of conduit 5-3 of bleeding, and passes to the automatic control circuit of control circuit board; Automatic control circuit starts or stops according to the electronic inflating pump of gas pressure control combination formula air extractor, thus the starting or stoping of control combination formula air extractor.Said combined type air extractor 1-3 can be installed in juice extractor support 17-3, connect the arbitrary position among juice container 16-3, residue container 13-3 and the sealing device 6-3.Preferably will squeeze the juice in present embodiment motor 2-3 and combined type air extractor 1-3 is installed in the support in the 17-3.In the time of in the combined type air extractor is installed on support 17-3, support 17-3 is not the exhaust outlet exhaust that is beneficial to the combined type air extractor of sealing.

Foodstuff is sent in the feeding cylinder 8-3, covered sealing device 6-3, after the sealing of the above-mentioned needs place of being tightly connected, combined type air extractor 1-3 starts, and extracts the air in the cavity out, and the pressure in the chamber 10-3 that generally squeezes the juice is 5-10kPa.The motor 2-3 that squeezes the juice starts; Through centrifugal squeezing mechanism the juice in the foodstuff is squeezed out; The juice of squeezing out gets into connecing in the juice container 16-3 of the 10-3 bottom, chamber of squeezing the juice through the filtration that scum juice separates filter screen 14-3; Residue gets in the residue container 13-3 because centrifugal action throws away around scum juice separates filter screen 14-3.Because the process of squeezing the juice carries out under the condition of anoxic, thereby avoid or reduce oxidation, make fruit juice keep original nutrition composition, mouthfeel and color.

Embodiment four

Shown in Figure 4 is the sketch map of the juice extractor embodiment four of the utility model band combined type air extractor, is in the improvement that residue container is arranged on the centrifugal juice extractor basis that rotary sieve is inner and rotary sieve unites two into one.

This juice extractor comprises support 17-4, the motor 2-4 that squeezes the juice, the chamber 10-4 that squeezes the juice, meet juice portion, residue portion.The motor 2-4 that squeezes the juice is installed in the support 17-4, and support 17-4 can be in the side of squeezing the juice chamber 10-4, also can be in the bottom of squeezing the juice chamber 10-4.Support 17-4 in the present embodiment is positioned at the bottom of the chamber 10-4 that squeezes the juice.

Squeeze the juice the chamber by upper cover part 20-3, meet juice container 16-4 and combine.Connect the juice container for meeting juice portion, the feeding cylinder 8-4 of one is arranged on upper cover part 20-3, the annular space that scum juice separates between filter screen and the feeding cylinder constitutes the residue 13-4 of portion.In the present embodiment, be convenience for washing, be demountable structure between the bucket end that meets juice container 16-4 of tubbiness and the ladle body, the helicitic texture of mutual coupling is arranged between the two, be connected as one through thread seal.

In the said chamber 10-4 that squeezes the juice centrifugal squeezing mechanism is installed.Centrifugal squeezing mechanism in the present embodiment comprises that cutterhead 19-4, cutterhead seat, scum juice separate filter screen 14-4, driving shaft 18-4, and it is rotary sieve that the scum juice in the present embodiment separates filter screen 14-4.Wherein, cutterhead 19-4, cutterhead seat, rotary sieve 14-4 are integral structure.

The annular space that scum juice separates between filter screen 14-4 and the feeding cylinder 8-4 is the 13-4 of residue portion.The wall that driving shaft 18-4 passes the bucket end that meets juice container 16-4 connects through the output shaft of shaft coupling with the motor 2-4 that squeezes the juice, and also can directly use the motor 2-4 output shaft of squeezing the juice as driving shaft.Said feeding cylinder 8-4, the chamber 10-4 that squeezes the juice, connect between juice container 16-4, the 13-4 of residue portion and to form the cavity that connects each other.Connect the juice external container handle 21 is arranged.

Improvements are also to comprise combined type air extractor 1-4; The bleeding point of said combined type air extractor 1-4 directly or through bleed conduit 5-4 and feeding cylinder 8-4, the chamber 10-4 that squeezes the juice, the cavity that connects the mutual perforation that forms between the juice container 16-4 is communicated with; It is outside that the exhaust outlet 3-4 of said combined type air extractor is positioned at this cavity, and the air induction conduit djg of the electronic inflating pump on the said combined type air extractor 1-4 is positioned at cavity outside, support 17-4.For fear of, reduce oxidation; Make the chamber 10-4 that squeezes the juice in the process of squeezing the juice, be airtight cavity; The cavity that feeding cylinder 8-4, tubbiness connect the mutual perforation that juice container 16-4 forms all seals with the junction of arbitrary parts, and the position that present embodiment need seal is feeding cylinder 8-4, upper cover part 20-3 and connect juice container 16-4 joint, driving shaft 18-4 and a barrel joint, the end.The mode that feeding cylinder 8-4 goes up through sealing device 6-4 is installed seals, and upper cover part 20-3 adopts directly with connecing juice container 16-4 joint that the mode of combining closely seals, and driving shaft 18-4 adopts mechanically-sealing apparatus such as sealing ring with bucket joint, the end.After the sealing of above-mentioned position, make feeding cylinder 8-4, upper cover part 20-3, the chamber 10-4 that squeezes the juice, the cavity that connects the mutual perforation that forms between juice container 16-4, the 13-4 of residue portion be an airtight cavity, help the air in the chamber of squeezing the juice is extracted out.For present embodiment, the sealing device 6-4 of the said feeding cylinder 8-4 of place is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder; Also can adopt other any known mode of being tightly connected to realize sealing.

The bleeding point of combined type air extractor 1-4 can adopt following mode to realize with being communicated with of cavity:

1, is provided with the gas outlet in upper cover part 20-3, the optional position that connects on the parts of formation cavitys such as juice container 16-4, feeding cylinder 8-4; Direct and the said gas outlet sealed attachment of the bleeding point of combined type air extractor 1-4 is perhaps used bleeding point and the said gas outlet sealed attachment of conduit 5-4 with combined type air extractor 1-4 of bleeding.

2, meet juice container 16-4 and be provided with the hole; The sealed attachment conduit 5-4 that bleeds on the bleeding point of combined type air extractor 1-4; The conduit 5-4 that bleeds passes the hole that connects on the juice container 16-4 and gets in the cavity; The gas inlet end of conduit 5-4 of bleeding is positioned at the top of cavity foodstuff liquid level, and the conduit 5-4 that bleeds is a hermetically-sealed construction with connecing juice container 16-4 joint.

3, the conduit 5-4 that bleeds is located at handle 21 inside.Handle 21 bottom perforates, the hole that the sealed attachment conduit 5-4 that bleeds on the bleeding point of combined type air extractor 1-4, the conduit 5-4 that bleeds pass handle 21 bottoms gets into handle 21 inside; Handle 21 tops with connect juice container 16-4 joint perforate, the conduit 5-4 that bleeds passes this hole and gets in cavity, the gas inlet end of the conduit 5-4 that bleeds is positioned at the top of cavity foodstuff liquid level.The conduit 5-4 that bleeds is a hermetically-sealed construction with connecing juice container 16-4 joint.Be positioned at handle 21 and bleed conduit upper semisection and the conduit lower semisection place of interconnecting of bleeding that is positioned at support also for being tightly connected.

The bleeding point of combined type air extractor 1-4 is communicated with except that aforesaid way with cavity, also can adopt other modes.Preferential the 3rd kind of mode in the present embodiment.

The electronic inflating pump that combined type air extractor 1-4 in the present embodiment is comprises pump body and power source, and power source is an individual motor.The pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of individual motor, this body running of output shaft direct-driven pump of individual motor.The pump body adopts the rotary vane type inflating pump.

Be equipped with in the bleeding point place of said combined type air extractor 1-4 or the conduit 5-4 that bleeds and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the combined type air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit of bleeding is positioned at the top of foodstuff liquid level.The waterproof and breathable device can be waterproof ventilated membrane or waterproof and breathable sheet, waterproof vent valve, permeable watertight valve, prevent aqueous reflux check (non-return) valve etc.Filter is used to filter the foodstuff dregs, avoids foodstuff to get in the combined type air extractor, and filter can be screen pack or other filters, and is detachable or be fixed in the bleeding point place or the conduit of bleeding of combined type air extractor.

In order in needs, to remove the negative pressure state in the said cavity, said cavity is provided with gas turnover by-pass valve control 7-4, in needs, gas is passed in and out by-pass valve control 7-4 open, and air outside gets in the cavity, removes negative pressure state.Said gas turnover by-pass valve control 7-4 adopts any in hand-operated valve, motor-driven valve, the magnetic valve, and the lead of magnetic valve, motor-driven valve is electrically connected with control circuit board or power switch.Gas turnover by-pass valve control 7-4 can adopt the following manner setting:

1, at feeding cylinder 8-4, connect on the sidewall at the arbitrary place of cavity of the mutual perforation that forms between the juice container 16-4 and be provided with passage, passage permeate chamber body sidewall is sealed and installed with gas turnover by-pass valve control 7-4 on the passage.

2, on sealing device 6-4, passage is arranged, passage runs through sealing device itself, is sealed and installed with gas turnover by-pass valve control 7-4 on the passage.

3, on the sidewall of the conduit 5-4 that bleeds of combined type air extractor 1-4, be provided with the hole, be sealed and installed with gas turnover by-pass valve control 7-4 on the hole.

In the present embodiment; For the automatic control that realizes bleeding; Be sealed and installed with gas pressure sensor 4-4 in the bleeding point place of combined type air extractor or the conduit of bleeding; The power source of the electronic inflating pump of said gas pressure sensor 4-4, combined type air extractor 1-4 is electrically connected with control circuit board respectively through lead, and the gas pressure sensor 4-4 perception bleeding point place or the interior gas pressure of conduit 5-4 of bleeding are passed to the automatic control circuit of control circuit board; Automatic control circuit starts or stops according to the electronic inflating pump of gas pressure control combination formula air extractor, thus the starting or stoping of control combination formula air extractor.Said combined type air extractor 1-4 can be installed in juice extractor support 17-4, connect the arbitrary position in juice container 16-4, sealing device 6-4, the handle 21 etc.Preferably will squeeze the juice in present embodiment motor 2-4 and combined type air extractor 1-4 is installed in the support 17-4.Support 17-4 is not the exhaust outlet exhaust that is beneficial to the combined type air extractor of sealing.

In feeding cylinder 8-4, put into foodstuff, cover sealing device 6-4, combined type air extractor 1-4 starts, and extracts the air in the cavity out, and the pressure in the chamber of generally squeezing the juice is 5-10kPa.The motor 2-4 that squeezes the juice starts; Through centrifugal squeezing mechanism the juice in the foodstuff is squeezed out; The filtration that the juice of squeezing out separates filter screen 14-4 through scum juice get into the 10-4 bottom, chamber of squeezing the juice connect juice container 16-4 in, residue get into also stays scum juice separate in the filter screen 14-4, on the 13-4 of residue portion.

Because the process of squeezing the juice carries out under the condition of anoxic, thereby avoid or reduce oxidation, make fruit juice keep original nutrition composition, mouthfeel and color.

The above only is the preferred implementation of the utility model, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching.For example, the electronic inflating pump of said combined type air extractor and jet pump are not arranged on same position (such as all being arranged in the support).It also can be that electronic inflating pump is located in the support; And jet pump is arranged on the seal cover or in the handle, as long as the exhaust manifolds of electronic inflating pump are connected through conduit with the air induction conduit of jet pump, bleeding point is positioned at cavity; Exhaust outlet leads to outside the cavity, just can realize the purpose of the utility model.These in form changes, improvement or retouching are also at the protection domain of the utility model.

Claims

1. juice extractor with the combined type air extractor; Comprise the motor of squeezing the juice, the chamber of squeezing the juice, meet juice portion, residue portion, the said chamber of squeezing the juice is provided with feeding cylinder, in the said chamber of squeezing the juice squeezing mechanism is installed; The output shaft of motor of squeezing the juice connects with the driving shaft of squeezing mechanism; Said feeding cylinder, the chamber of squeezing the juice, connect between juice portion, the residue portion and to form the cavity that connects each other, it is characterized in that, also comprise the combined type air extractor; Said feeding cylinder place is provided with sealing device; Said feeding cylinder, the chamber of squeezing the juice, to connect between juice portion, the residue portion the mutual junction that forms the cavity that connects each other be sealed attachment, and the junction of said cavity and arbitrary parts all seals, and said cavity is airtight cavity in the process of squeezing the juice; Said combined type air extractor is formed by electronic inflating pump and jet pump tandem compound, and the exhaust manifolds of electronic inflating pump directly are connected with the air induction conduit of jet pump or connect through conduit; The air inlet of said electronic inflating pump is the working gas import of said combined type air extractor, and it directly or through air induction conduit is positioned at said cavity outside or inner; The bleeding point of jet pump is the bleeding point of said combined type air extractor, and it directly or through the conduit of bleeding is communicated with said cavity; The exhaust outlet of jet pump is the exhaust outlet of said combined type air extractor, and it directly or through exhaust manifolds is positioned at said cavity outside;

2. the juice extractor of band combined type air extractor according to claim 1; It is characterized in that the said juice portion that connects is for connecing the juice container, the said chamber of squeezing the juice is provided with juice opening; Said juice opening and connect sealed attachment between the juice container is equipped with scum juice and separates filter screen in the said chamber of squeezing the juice.

3. the juice extractor of band combined type air extractor according to claim 2 is characterized in that, said residue portion is a residue container, and the said chamber of squeezing the juice is provided with slag notch, sealed attachment between said slag notch and the said residue container.

4. according to the juice extractor of each described band combined type air extractor among the claim 1-3; It is characterized in that; Be equipped with in the bleeding point place of said combined type air extractor or the conduit of bleeding and prevent that foodstuff or foodstuff flow from going into waterproof and breathable device in the combined type air extractor bleeding point or/and filter, the gas inlet end of the bleeding point or the conduit of bleeding is positioned at the top of foodstuff liquid level.

5. according to the juice extractor of each described band combined type air extractor among the claim 1-3; It is characterized in that; On the said cavity or on the sealing device or the conduit of bleeding be provided with gas turnover by-pass valve control, said gas turnover by-pass valve control adopts any in hand-operated valve, motor-driven valve, the magnetic valve.

6. according to the juice extractor of each described band combined type air extractor among the claim 1-3; It is characterized in that; Also comprise automaton, said automaton is any in time control circuit, Pneumatic controller or detection of electronic inflating pump load current and the control circuit; Said Pneumatic controller comprises baroceptor or baroswitch, and baroceptor or baroswitch are electrically connected with control circuit board, and baroceptor or baroswitch are communicated with said cavity; Said baroswitch is mechanical type or electronic type.

7. according to the juice extractor of each described band combined type air extractor among the claim 1-3, it is characterized in that also comprise the air pressure display unit, said air pressure display unit is communicated with said cavity, the air pressure display unit is mechanical type air-pressure gage or electronic type air gauge.

8. according to the juice extractor of each described band combined type air extractor among the claim 1-3, it is characterized in that said combined type air extractor is installed in the juice extractor support, connects the arbitrary position in juice container, residue container, handle and the sealing device; Said sealing device is seal cover or piston type sealing device, realizes sealing with thread connection or interference fit joint mode between seal cover and the feeding cylinder; Realize sealing with thread connection or interference fit joint mode or slipper seal mode between piston type sealing device and the feeding cylinder; Juice opening and connect between the juice container with thread connection or interference fit joint mode and realize sealing; Realize sealing with thread connection or interference fit joint mode between slag notch and the residue container; Said power source of squeezing the juice motor or combined type air extractor is installed in support or the head.

9. according to the juice extractor of each described band combined type air extractor among the claim 1-3; It is characterized in that; The power source of said electronic inflating pump is when squeezing the juice motor; The pump body has a power transmission shaft, and power transmission shaft connects with the output shaft of the motor of squeezing the juice, this body running of output shaft direct-driven pump of the motor of squeezing the juice; Or the output shaft of the motor of squeezing the juice is through the propeller shaft couplings of transmission mechanism and pump body.

10. according to the juice extractor of each described band combined type air extractor among the claim 1-3; It is characterized in that; At least one place is in series with the valve of control gas communication in the air induction conduit of said electronic inflating pump, in the air inlet place, exhaust manifolds, in the air induction conduit of exhaust ports or jet pump, in the air inlet place, exhaust manifolds, in the exhaust ports, the conduit of bleeding, in the exhaust manifolds of bleeding point place or electronic inflating pump and the conduit that the air induction conduit of jet pump is connected, and said valve is check valve or two-way valve.

11. the juice extractor according to each described band combined type air extractor among the claim 1-3 is characterized in that, when squeezing the juice, the gas pressure in the said cavity is greater than 0 kPa, less than 10 kPas.